JP6468836B2 - Absorbent pad - Google Patents

Description

  The present invention relates to an absorbent pad.

  An absorptive pad is piled up inside disposable diapers, underwear, pad holders, etc., and is used across the wearer's crotch to the abdomen and back. An adult urine collection pad, which is a kind of absorbent pad, is often used over a disposable diaper. By such a method, even in the case of a care recipient who needs to change several times a day, only the pad needs to be changed, the frequency of changing the diaper itself can be reduced, and the economic and labor burden is reduced. Can do. However, this absorbent pad is still unsatisfactory with respect to prevention of side leakage such as urine and fit to the skin. For this reason, several techniques for improving this point have been proposed.

For example, Patent Document 1 describes an absorbent article in which an intermediate portion in a longitudinal direction corresponding to a wearer's crotch is separated into a central portion and both side portions in the width direction. In this article, the elastic member is disposed in the longitudinal direction at the portion where the side portion is not joined to the lower layer. It is said that the side portion slides inward in the width direction due to the contraction force of the elastic member, the width of the intermediate portion becomes narrow, and the fit near the crotch portion is improved.
Patent Document 2 describes an absorbent article in which an intermediate part in a longitudinal direction corresponding to a wearer's crotch is divided into a left part, a right part, and a central part in the width direction. In this article, a core elastic member extending in the longitudinal direction is disposed in a portion where the absorbent core overlaps the left side portion and the right side portion of the backsheet. As the core elastic member contracts, the left and right side portions are lifted, and at the same time, the central portion is depressed with respect to the wearer's crotch portion, and the absorbent core cross-section becomes a downward convex. Thereby, it is said that it becomes easy to accommodate excrement such as urine while maintaining an appropriate distance.

Patent Document 3 describes a wearer article in which an elastic elastic member is disposed at the center in the width direction of the inner surface of the back sheet in order to reduce wrinkling of the sheet and core due to tightening of both legs.
Patent Document 4 describes an absorbent article including a stretchable leak-proof portion that does not include an absorbent core and extends outward in the width direction from the side edge of the exterior body for fitability to the leg periphery. ing.
Furthermore, Patent Document 5 describes a disposable diaper in which an absorbent body is divided into a central absorbent body and left and right leg absorbent bodies. In the diaper, an intermediate region having a smaller basis weight is formed between the central absorbent body and the leg absorbent body. And the flexible shaft located in the both sides of a center absorber is formed inside this middle field. For this reason, both sides of the central absorbent body rise along the flexible axis, and the outer leg absorbent body is easily bent outward in the width direction. A concave pocket S is formed on the central absorbent body.

JP 2012-16414 A JP 2011-250947 A JP-A-11-188056 JP 2006-122396 A JP 2002-263135 A

When the wearer of the absorbent pad described above lies down and lies down, the manner in which the liquid is absorbed differs depending on the body position. In particular, in the case of an elderly person with a high degree of care, the time spent in the lateral position is long to prevent pressure sores. In this lateral position, it is inevitable that the excretory fluid flows along the inclined surface of the body. In this case, the excretory fluid collects below the lateral position and may leak sideways (crotch leakage) without being sufficiently absorbed.
In addition, with increasing age, bladder function may decrease and urination rate may slow. Also in this case, urine tends to flow along the skin, and if there is a gap between the urination part of the wearer and the absorbent article, the tendency of urine to flow along the inclination of the body due to the lateral position appears remarkably.
It may be possible to cope with this by increasing the amount of absorption by increasing the amount of absorbent material (pulp or polymer). However, the increased amount is not appropriate because it reduces wear comfort and costs due to increased thickness. There is no viewpoint in the prior art described above to deal with the liquid flow phenomenon due to the inclination of the body and the decrease in the urination speed, and there is still room for improvement in the liquid leakage prevention function in the horizontal posture, that is, the absorption amount in the horizontal direction. is there.

  In view of the above points, the present invention relates to an absorbent pad that can effectively utilize the entire absorbent body and increase the lateral absorption amount without increasing the amount of absorbent material.

The present invention has a surface sheet on the skin contact surface side, a back sheet on the non-skin contact surface side, and a liquid retaining absorbent interposed between the top sheet and the back sheet. An absorbent pad having a longitudinal direction extending from the ventral side to the back side through the inseam and a lateral direction perpendicular to the longitudinal direction,
When the absorbent body is divided into a front portion, a crotch portion, and a rear portion in the longitudinal direction, the absorbent body has two or more slit portions partially lacking an absorbent material, and the longitudinal portion extends around the crotch portion. A central absorber sandwiched between the slit portions, and a side absorber located outside the slit portions,
A side elastic body exists in the crotch part, and the side elastic body is between the side absorbent body and the back sheet, or the non-skin contact of the back sheet corresponding to the side absorbent body. Adhered to the contact surface side along the longitudinal direction,
The central absorbent body is thicker than the side absorbent body, and an absorptive pad is provided in which a rear end portion of the slit portion is located in front of a rear end portion of the absorbent body.

  The absorbent pad of the present invention can effectively absorb the urination part without increasing the amount of absorbent material, and can effectively improve the lateral absorption by effectively utilizing the entire absorbent body.

It is the partially notched top view which showed typically the urine collection pad as one preferable embodiment of the absorbent article of this invention from the skin contact surface side. It is sectional drawing of the II-II line cross section of FIG. It is the schematic diagram which showed the skin curved surface of the wearer's crotch part as a saddle shape. It is the partial cross section perspective view which showed typically the deformation | transformation from the crotch part to a back part in an absorber at the time of mounting | wearing with the urine collection pad of this embodiment. It is the partial cross section perspective view which showed typically the deformation | transformation from the front part to a crotch part in an absorber at the time of mounting | wearing with the urine collection pad of this embodiment. It is the top view which showed typically the other aspect of the slit part in the skin contact surface side of an absorber. It is sectional drawing of the crotch part which shows another aspect of an absorber. It is sectional drawing of the crotch part which shows another aspect of an absorber. It is sectional drawing of the crotch part which shows another aspect of an absorber. It is sectional drawing equivalent to FIG. 2 which shows the aspect in which the urine collection pad of this embodiment has a solid gather. (I)-(v) is a top view which shows typically arrangement | positioning of the slit part in the urine collection pad of an Example, a side part elastic body, and a center elastic body, (vi) is a slit in the urine collection pad of a comparative example It is a top view which shows typically arrangement | positioning of a part, a side part elastic body, and a center elastic body. (I) is a cross-sectional view showing a state in which the urine collecting pad is applied to a normal position of the human body model, (ii) is a cross-sectional view showing a state where the urine collecting pad is lowered by 3 cm at a normal position, and (iii) is ( It is a top view which shows the state fixed in the position of ii). It is explanatory drawing which shows typically how to attach the inclination at the time of measuring a lateral absorption amount using the human body model of the state which mounted | wore the sample of the urine pad with FIG. 12 (iii).

  As a preferred embodiment of the absorbent pad according to the present invention, a urine collecting pad will be described in detail below with reference to FIGS.

  In the present invention, unless otherwise specified, the side in contact with the human body is referred to as the skin surface side, the skin contact surface side or the surface side, and the opposite side is referred to as the non-skin surface side, the non-skin contact surface side or the back surface side. That's it. The direction positioned on the abdomen side of the human body when worn is referred to as the front, and the end thereof is referred to as the front end, and the direction positioned on the back side or the buttock side is referred to as the rear, and the end is referred to as the rear end. The direction arranged from the wearer's belly side to the back side through the crotch is referred to as a longitudinal direction or a longitudinal direction (Y direction) of the absorbent article. A direction orthogonal to the longitudinal direction is referred to as a width direction or a lateral direction (X direction). Moreover, the normal line direction of the surface or back surface of an absorbent article is called thickness direction, and the quantity is called thickness.

  As shown in FIGS. 1 and 2, the urine collecting pad 10 of the present embodiment includes a top sheet 1 disposed on the skin contact surface side, a back sheet 2 disposed on the non-skin contact surface side, and both the sheets. The liquid-retaining absorbent 3 is disposed between the two. The absorbent body 3 in the present embodiment is composed of an absorbent material stack 36 and a core wrap sheet 37 covering the outer surface of the stack. In addition, the structure of the absorber 3 is not limited to this, The various form which has liquid retention property is employable. For example, it may be composed of only the stacked fiber 36 without the core wrap sheet 37, or may be composed of a sheet-like material in which a superabsorbent polymer is sandwiched between two sheets. The urine collecting pad 10 has a longitudinal direction (Y direction) arranged from the wearer's stomach side to the back side through the crotch and a lateral direction (X direction) orthogonal to the longitudinal direction.

In the longitudinal direction of the absorbent body 3, the crotch part C disposed on the crotch sandwiched between the thighs of the wearer, the front part F disposed on the abdomen side, and the rear disposed on the back side (buttock side). Divided into part R. Moreover, it can be said that the crotch part C is a part applied to the crotch of the underwear. In the absorbent body 3, the excretion point C <b> 1 that directly receives excretion fluid such as urine is located in the range from the front of the crotch C to the crotch of the front F, depending on the gender of the wearer.
Regarding the above-mentioned classification, the crotch part C can be functionally defined as a part covering the crotch of the wearer, and the front part F and the rear part R are determined based on this. That is, by determining the crotch part C, a boundary L1 with the front part F and a boundary L2 with the rear part R are determined, and three regions are defined. Typically, the front part F, the crotch part C, and the rear part R are areas when the absorbent body 3 is divided into three equal parts in the longitudinal direction.

As will be described later, the absorber 3 is characterized by a slit 38 and a side elastic body 4 that are specifically arranged, and a central absorber 32 that is thicker than the side absorber 21. Thereby, the fitting property of the absorber 3 to the wearer's uneven skin curved surface is further enhanced to prevent liquid leakage. That is, the liquid absorption performance of the absorbent body 3 as a whole is effectively utilized to improve the amount of absorption in the horizontal direction.
Examples of the complex skin curved surface include a skin curved surface of a wearer's crotch portion. This crotch part is a cross-section arch-shaped part that protrudes upward in the width direction connecting the inside of the wearer's crotch to the inside of the thigh on both sides, and the front and back direction including the excretion part of the wearer. And a convex portion. This is a so-called saddle shape as shown in FIG. 3, which combines two curved surfaces in which the transverse principal curvature J1 in the width direction (X direction) and the longitudinal principal curvature J2 in the front-rear direction (Y direction) are opposite to each other. It is a configuration. Therefore, the curvature of the skin curved surface changes depending on the position where the absorber 3 hits.
On the other hand, the absorber 3 can be deformed to match the above-described skin curved surface. This is because, in part, the slit portion 38 enables the center absorber 31 and the side absorber 32 to be independently deformed. In addition to this deformability, the side elastic body 4 enhances the followability and fit of the side absorbent body 32 to the moving thigh, and the thickness of the central absorbent body 31 is the elasticity of the side elastic body 4. By increasing the adhesion to the crotch of the urination part and the like that is not affected by the stretching force. Further, since the rear end portion 38R of the slit portion 38 is located on the front side of the rear end portion R1 of the absorber 3, efficient liquid absorption can be performed at a portion where the liquid tends to accumulate. These points will be described in detail below.

  The absorbent body 3 is provided with two or more slit portions partially lacking the absorbent material of the fiber stack 36, and is arranged in the longitudinal direction centering on the crotch part. In the present embodiment shown in FIG. 1, two slit portions 38 are provided. The region sandwiched between the slit portions 38 and 38 is the central absorber 31, and the width direction outer portions of the slit portions 38 and 38 are the side absorbers 32 and 32. That is, the central absorber 31 and the side absorbers 32 and 32 are arranged in the width direction with the slit portion 38 as a boundary. In addition, when three or more slit portions are arranged, a portion sandwiched between two of the slit portions serving as a flexible portion, which will be described later, is the central absorbent body 31, and the slit portion The outer portion in the width direction is the side absorber 32. Typically, the portion sandwiched between the slit portions on the outermost side in the width direction is the central absorber 31, and the outer portion in the width direction of the slit portion is the side absorber 32.

  The slit portion 38 is arranged along the longitudinal direction from the crotch portion C where the liquid easily flows to the position where the urination point C1 is located, and becomes a flexible portion in the crotch portion C of the absorbent body 3. More specifically, as shown in FIG. 4, when pressure G1 (pressure in the direction of arrow G1) is applied from the left and right thighs of the wearer when the urine collecting pad 10 is worn, the side absorbent bodies 32 and 32 are Then, while approaching the central absorber 31, it bends in a mountain fold shape with the slit portions 38 and 38 as axes. Thus, the skin contact surface 32A of the side absorbent body 32 faces the inner side of the wearer's thigh, and the curved surface of the absorbent body 3 formed by the central absorbent body 31 and the side absorbent body 32 is the wearer. Fit along the inseam curve (transverse principal curvature J1). In FIG. 4, the top sheet 1 and the back sheet 2 are omitted for understanding the deformation of the absorber 3.

  The slit portion 38 is a portion in which the thickness of the absorber is made thinner than the other portions so as to be a flexible shaft of the absorber at the time of mounting. Specifically, it is a portion where the absorbent material of the stack 36 is partially missing, and may be a non-penetrating groove or a through hole without an absorbent material. From the viewpoint of suppressing the spread of the bending stress to the central absorber as much as possible, the through hole is preferable. In addition, when it is a non-penetrating groove | channel, it is preferable that it is a groove | channel recessed from the skin contact surface side of the fiber stack 36 to the non-skin contact surface side so that it may be a mountain fold deformation of the side part absorber 32. . In this case, it is preferable that the core wrap sheet 37 is recessed along the depression of the stacked fiber 36 from the viewpoint of flexibility. The slit portion 38 having the above-described configuration can be formed by a commonly used method. Further, the slit portion 38 may be a cut line or a groove having a predetermined width. Moreover, the slit part 38 may be comprised from the notch | incision of the core wrap sheet | seat 37 in addition to the notch of the absorption material of the fiber stack 36. FIG. Thereby, the function as a flexible part increases more.

  Thus, since the slit part 38 is a part whose basis weight is relatively lower than the other part of the absorber 3, the liquid absorption function is low. For this reason, it is preferable that the slit portion 38 is not actively adhered to the skin from the viewpoint of preventing the liquid flow through the skin, and there is no elastic body between the top sheet 1 and the back sheet 2 in the slit portion 38. preferable.

Further, from the viewpoint of enabling the side absorbent body 32 to be bent as described above, the widthwise length (S1) of the central absorbent body 31 in the crotch part C is preferably 40 mm or more, and 45 mm or more. More preferred. In addition, the length in the width direction (S1) is from the viewpoint of fit into the inseam of the wearer, that is, from the viewpoint of entering the narrow space of the inseam of the wearer without wearing in the width direction. 100 mm or less is preferable and 70 mm or less is more preferable.
The width direction length (S2) of each side part absorber 32 is preferably 0.5 or more, more preferably 0.8 or more, as a ratio (S2 / S1) to the width direction length (S1) of the central absorber 31. 1.0 or more is more preferable. Moreover, this ratio (S2 / S1) is preferably 2.0 or less, more preferably 1.5 or less, and still more preferably 1.3 or less, from the viewpoint of fit.

  In addition to the slit portion 38 described above, the side elastic body 4 is arranged in an extended state along the longitudinal direction on the back surface side in the thickness direction of the side absorber 32. That is, the side elastic bodies 4 are arranged along the longitudinal direction on both sides of the crotch part C. Moreover, in the area | region where the side part elastic body 4 was distribute | arranged, the side part absorber 32 and the back surface sheet 2 are adhere | attached in the thickness direction, and the side part absorber 32 and the back surface sheet 2 are integrated in planar shape. . Specifically, the entire non-skin surface 32B of the side absorbent body 32 and a predetermined region of the back sheet 2 that overlaps the non-skin surface 32B are joined together by an adhesive means such as a hot melt adhesive, and both members are integrated ( (See FIG. 2). Thereby, the elastic expansion-contraction force of the side part elastic body 4 is made to spread over the whole predetermined part of the side part absorber 32 and the back surface sheet 2 facing this. At this time, in this embodiment, the side elastic body 4 is interposed between the side absorbent body 32 and the back sheet 2. However, the arrangement of the side elastic body 4 is not limited to that of the present embodiment, and various forms in which the contraction force of the side elastic body 32 is transmitted to the integrated side absorber 32 and the back sheet 2 are various. Can be adopted. For example, the form which the side part elastic body 32 is joined to the non-skin contact surface side of the back surface sheet 2 corresponding to the side part absorber 32 may be sufficient. Moreover, the form in which another member interposes may be sufficient. In the present embodiment shown in FIG. 1, two side elastic bodies 4 having such an arrangement are arranged for each side absorber 32. However, the number of arrangement is not limited to this, and can be changed as appropriate.

  As the bonding means, those usually used in this type of article can be used without particular limitation. For example, specific examples of the hot melt adhesive include olefin, rubber, and ethylene-vinyl acetate copolymer (EVA). Also, as a method for applying the hot melt adhesive, various application methods used for this type of article such as coater coating, spray coating, bead coating and the like can be adopted. Further, the coating pattern may be continuous coating, or may be a coating pattern with a gap such as spiral shape, Ω-shape, or summit shape.

Further, the elastic elastic force of the side elastic body 4 acts to push up the entire region of the urine collecting pad 10 where the side absorbent body 32 exists to the skin side of the wearer due to the above integration (FIG. 4). Arrow P1). That is, as described above, when the urine collecting pad 10 is mounted, pressure is generated such that the thigh of the wearer presses the side absorbent body 32 inward in the width direction (pressure in the direction of arrow G1 in FIG. 4). On the other hand, the side elastic body 4 pushes up and opposes the side absorbent body 32 in the direction opposite to the pressing direction (pushing up in the direction of arrow P1 in FIG. 4). As a result, the side absorbent body 32 that becomes the slope of the mountain fold rises together with the back sheet 2 while pushing up the top sheet, and the region where the side absorbent body 32 is located closely contacts the inner side of the wearer's thigh. Such close contact is expressed following the change in the posture of the wearer due to the elastic contraction force of the side absorbent body 32, and a gap is not easily formed between the thigh and the side absorbent body 32.
Thereby, in the crotch part C, the liquid absorption performance of the side part absorber 32 can be fully utilized, and the liquid flowing on the skin surface of the wearer and the surface of the urine collecting pad 10 can be absorbed and retained without leaking. . In particular, for elderly people with a high degree of care, even if urine flows along the inclination of the lateral position when the lateral position is set to prevent pressure ulcers, it absorbs firmly and prevents side leakage of the liquid. In addition, when the urine collecting pad 10 is worn, proper positioning is not possible for a bedridden person, and even when the urine collecting pad 10 is left misaligned or when a misalignment occurs during wearing, the liquid is absorbed firmly to prevent side leakage of the liquid. . Therefore, it can continue to be worn safely even for a long time. In particular, when wearing at night, the bed can be prevented from getting wet due to urine leakage, which contributes to the sleep of the wearer. This also reduces the burden of caregivers' night care.

In addition, the central absorber 31 is thicker than the side absorber 32. This thickness is formed on the entire central absorber 31 delimited by the slit portion 38, and extends from the crotch C to a position where the excretion point C1 is located. Thereby, the urination point C1 of the absorber 3 hits a wearer's excretion part, and it prevents that a clearance gap arises. In particular, the force that pulls up the side absorber 32 by the side elastic body 4 may act as a force that pulls the central absorber 31 away from the skin from both sides. Even in this case, the thickness can prevent the central absorbent body 31 and the wearer's excretion portion from having a gap. Thereby, the central absorber 31 directly absorbs and holds the liquid during urination, and the amount of liquid flow to the side absorber 32 can be reduced.
The thickness of the central absorbent 31 is not obtained by increasing the amount of absorbent material compared to the conventional absorbent, but by changing its distribution. That is, the distribution is such that the absorber 3 can be used more effectively than in the past. This distribution change can be realized by improving the fit of the wearer's crotch by the slit portion 38 and the side elastic body 4 described above. Thereby, the whole absorber 3 can be used efficiently and the amount of absorptive material can also be reduced. At that time, if the central absorbent body is relatively thick, the fitting property can be further improved. This is not possible with a conventional absorbent pad.

  The combination of the action of the thickness of the central absorbent body 31 and the action of the side elastic body 4 with respect to the side absorbent body 32 more reliably prevents liquid flow and liquid leakage in the crotch C. As a result, even if the posture is in the lateral position as described above, or even if there is a positional deviation, it is possible to continue wearing it for a long period of time. In addition, the above combination optimizes the distribution of the absorbent material and suppresses the wearer's crotch portion from becoming stiff.

The above thickness can be measured as follows. That is, cold spray is sprayed on the absorbent pad as a product to solidify the hot melt, and each member is carefully peeled off to take out the absorbent body. And the taken-out absorber is measured by a 0.25 kPa load.
The thickness (H1) of the central absorber 31 is preferably 1.1 or more, and more preferably 1.2 or more, as a ratio (H1 / H2) to the thickness (H2) of the side absorber 32. Moreover, this ratio (H1 / H2) is preferably 3.5 or less, more preferably 3.0 or less, from the viewpoint of wearing comfort. The thickness (H1) of the central absorbent body 31 is the thickness of the thickest portion of the central absorbent body 31, and the thickness (H2) of the side absorbent body 32 is within the side absorbent body 32. It is the thickness of the thinnest part.

Further, in the urine collecting pad 10, the rear end portion 38 </ b> R of the slit portion 38 is located on the front side of the rear end portion R <b> 1 of the absorbent body 3 in the rear portion R of the absorbent body 3 that easily collects liquid. That is, the slit portion 38 has a configuration that does not reach the rear end R1 of the absorber 3. Therefore, a portion 33 (hereinafter also referred to as a rear continuous portion 33) that is continuous in the width direction remains in the rear portion R of the absorbent body 3. Thereby, in the rear part R, the liquid absorption capacity is not hindered by the slit part 38, and the absorption performance can be utilized to the maximum. The excretory fluid can be diffused in the width direction in the absorbent body and absorbed and held on a wide surface. That is, the liquid that has passed through the top sheet 1 in the thickness direction can be reliably absorbed by the rear portion R of the absorbent body 3 that flows through the slit portion inside the absorbent body and finally arrives. In particular, when the wearer is bedridden, a liquid pool is likely to occur. Therefore, the above liquid absorption is effective from the viewpoint of preventing liquid leakage.
In addition, since the rear end portion 38R of the slit portion 38 is positioned on the front side of the rear end portion R1 of the absorber 3, the side absorber 32 having the slit portion 38 as a flexible shaft can be bent and bent. It becomes inhibitory at the rear part R. Thereby, the back part R of the absorber 3 is suppressed from wrinkles and kinks, and easily fits along the gently convex curved surface of the wearer's buttocks. As a result of these, it is possible to effectively utilize the absorption performance without unnecessarily increasing the thickness of the rear portion R of the absorbent body 3 and to improve the comfort on the buttock side. The liquid is efficiently absorbed in the central absorbent body 31 by improving the fit to the buttock. As a result, the amount of liquid transmitted through the skin is reduced, and the situation where the liquid transmitted through the skin excessively flows to the side absorbent body 32 can be prevented. In addition, due to the above fit, the distance between the top sheet 1 and the skin on the buttock side is narrow, so that a phenomenon such as a capillary action of the liquid occurs. Therefore, it becomes easy for the liquid to flow on the surface material along the narrow gap and to flow in the buttock direction (longitudinal direction). If the urine pad and the buttocks do not fit, capillary action will not occur, and the liquid will flow along the skin in the direction of gravity (lateral direction). However, in the urine collecting pad 10 of the present embodiment, due to the fit on the buttock side, such a lateral flow of liquid is prevented and efficient liquid absorption at the rear portion R is realized.

  In the arrangement relationship defined above, the rear end portion 38R of the slit portion 38 may exist in the rear portion R, but the liquid tends to concentrate on the rear portion R where the collar portion is arranged. Therefore, from the viewpoint of securing the absorption capacity of the rear portion R, it is preferable that the rear end portion 38R of the slit portion 38 does not extend to the rear portion R. Furthermore, from the viewpoint of securing the absorption capacity on the buttock side of the crotch part C, the slit rear end 38R is more preferably located on the front side than the boundary L2 between the crotch part C and the rear part R of the absorber 3. From the same viewpoint, the extension length (T1) of the slit portion 38 from the boundary L1 between the front portion F of the absorbent body 3 and the crotch portion C to the rear end portion 38R of the slit portion 38 in the crotch portion C is The ratio (T1 / TC) to the length (TC) in the longitudinal direction of the crotch part C of the absorbent body 3 is preferably 85% or less, more preferably 80% or less, and still more preferably 80% or less. Moreover, from a viewpoint of the fitting property to the thigh circumference, 60% or more is preferable, 65% or more is more preferable, and 70% or more is still more preferable.

  By combining the slit portion 38, the side elastic body 4, and the thick central absorbent body 31, the urine collecting pad 10 can effectively utilize the absorption performance of the entire absorbent body without reducing the wearing comfort, and absorbs in the lateral direction. The amount will be improved. Here, the “lateral absorption amount” means an amount of liquid that can be absorbed in a state where urine or the like is concentrated on one side when the wearer is in a lateral position on either side. The angle of the lateral position in this case is not particularly limited, and is an angle at which the liquid flows to one side. Typically 30 degrees or more.

  Further, in the urine collecting pad 10, the side elastic body 4 is preferably arranged so as to pass through the width direction intermediate region 32M in the crotch part C of the side absorbent body 32 (see FIG. 2). Thereby, the side part absorption body 32 can contact | abut to a wearer's thigh efficiently in a planar shape, and can capture | acquire and hold | maintain flowing urine etc. reliably. The intermediate region 32M in the width direction means an intermediate position in the width direction and the vicinity thereof in the widest portion of the side absorber 32 defined by the slit portion 38 in the crotch portion C. The vicinity of the intermediate position means a range within 15 mm from the intermediate position. There may be a portion where the slit portion 38 and the side elastic body 4 intersect as long as it extends in the longitudinal direction along the intermediate region 32M.

  Furthermore, it is preferable that the side elastic body 4 extends continuously from the crotch part C in the rear part R. In addition to this, it is preferable that the rear end 4R of the side elastic body 4 is located on the rear side of the rear end 38R of the slit portion 38. This arrangement eliminates the mountain fold deformation of the side absorbent body 32 using the slit portion 38 as a flexible shaft at the rear part R, and makes it easier to fit both sides of the rear part R of the absorbent body 3 along the wearer's buttocks ( Arrow P2 in FIG. Thereby, the back part R of the absorber 3 in which liquid tends to accumulate is suppressed from wrinkles and kinks, and the fit to a gently convex curved surface on the wearer's back side is further enhanced. This convex curved surface is a convex curved surface that extends from the crotch to the waist through the bulge of the buttocks as a whole. That is, it is a convex curved surface in which the longitudinal principal curvature J2 in the front-rear direction appears stronger than the transverse principal curvature J1 in the width direction at the crotch. It is preferable that the rear portion R of the absorbent body 3 is curved in a convex shape along the roundness of the flange portion with respect to the convex curved surface having the longitudinal main curvature J2, and thus the above arrangement is preferable. Thereby, since the side part absorber 32 fits easily along skin, the liquid which flowed along the slit can be absorbed efficiently. Further, by further improving the fitting property, the phenomenon such as the capillary action of the liquid on the buttock side described above is promoted, and the lateral flow preventing property of the liquid is further enhanced.

  On the other hand, in the front part F of the absorber 3, it is more preferable that the central part absorber 31 having the above-described thickness (H1) is extended to the front part F beyond the excretion point C1. That is, it is more preferable that the slit part 38 is also extended from the crotch part C of the absorber 3 to the front part F beyond the excretion point C1. Thereby, the central absorbent body 31 from the crotch part C to the front part F exhibits flexibility independent of the mountain fold deformation of the side absorbent body 32, and is in a wide range of the lower abdomen including the urination part of the wearer. In close contact. As a result, liquid leakage from the ventral side is prevented. The extending lengths of the slit portion 38 and the central absorber 31 in the front portion F are not particularly limited. From the viewpoint of preventing leakage and fitting to the skin, the front end 38F of the slit 38 (the front end of the central absorbent body) reaches the front end F1 of the front part F of the absorbent body 3. Preferably not. In addition, the longitudinal extension length (T2) of the slit portion 38 (and the central absorber 31) from the boundary L1 to the front end portion 38F at the front portion F is the length of the front portion F of the absorber 3 in the longitudinal direction. The ratio (T2 / TF) to the length (TF) is preferably 15% or less, more preferably 12% or less, and still more preferably 10% or less. Thereby, it is not necessary to deteriorate the absorption performance of the front portion F. The ratio (T2 / TF) is preferably 2% or more, more preferably 3% or more, and further preferably 5% or more, from the viewpoint of fit from the crotch to the buttocks.

Moreover, it is preferable that the side part elastic body 4 does not exist in the front part F. That is, it is preferable that the front end portion 4F of the side elastic body 4 is located on the rear side of the boundary L1 between the front portion F and the crotch portion R of the absorber 3. Thereby, it is possible to prevent the pushing-up action of the side absorbent body 32 due to the elastic contraction force of the side elastic body 4 from spreading to the central absorbent body 31, and to improve and stabilize the fit of the wearer to the urine drainage part.
The front end 4F of the side elastic body 4 is preferably located on the rear side of the front end 38F of the slit 38. Thereby, the fitting property with respect to a wearer's urination part of the center absorber 31 formed according to the extension range of the slit part 38 can be improved. Specifically, the side elastic body 4 prevents the absorbent body 3 from being pushed by the thigh and prevents the central absorbent body 31 near the excretion point C1 from floating, thereby improving the fit.

In addition, in the absorbent body 3, it is preferable that the central elastic body 5 is arranged in an elongated state along the longitudinal direction on the back side of the central absorbent body 31. In the present embodiment shown in FIG. 1, four central elastic bodies 5 are arranged with respect to the central absorbent body 31 (two sets for two sets in total). However, the number of arrangement is not limited to this, and can be changed as appropriate.
This elastic elastic force of the central elastic body 5 can further enhance the fit to the skin (especially the urination portion) due to the thickness of the central absorbent body 31 as shown by the arrow P3 in FIG. Therefore, it is preferable to arrange | position along the longitudinal direction centering on the crotch part C. FIG. The action of the central elastic body 5 on the central absorbent body 31 and the action of the side elastic bodies 4 on the side absorbent body 32 appear without interfering with each other by the slit portion 38. Thereby, the fitting property to the skin curved surface (curved surface which becomes convex downward) including the urination part in a wearer's crotch further increases further, and the prevention of the liquid flow which transmits skin further increases. In FIG. 5, the top sheet 1 and the back sheet 2 are omitted for understanding the deformation of the absorber 3.

  The central elastic body 5 preferably extends continuously from the crotch portion C in the front portion F. It is preferable to extend to a range covering at least the excretion point C1 of the front portion F. In the front part F, the extending length of the central elastic body 5 is not particularly limited. The central elastic body 5 preferably has a length that matches the above-described central absorbent body 31 from the viewpoint of liquid leakage prevention and fit to the skin, and the front end F1 of the front part F of the absorbent body 3 has a length. It is preferable not to reach. Furthermore, the front end portion 5F of the central elastic body 5 is more forward than the front end portion 4F of the side elastic body 4 from the viewpoint of fitting to the wearer's urine portion and preventing liquid leakage from the front portion F. It is preferable that it exists in. Thereby, in the area | region which the effect | action of the side part elastic body 4 does not reach, the elastic elastic force of the center elastic body 5 can be expressed, and the center absorber 31 can be fitted to skin closely. In particular, the center absorbent body 31 follows the skin by the central elastic body 5 even when the skin surface and the absorbent body around the abdomen are deformed in a lateral position or the like, and a gap may be formed between the skin and the absorbent body. To fit. Further, even when turning over or getting up and moving, the central absorbent body 31 follows and fits by the central elastic body 5.

  Moreover, it is preferable that the center elastic body 5 does not exist in the rear part R. That is, it is preferable that the front end portion 5F of the central elastic body 5 is positioned on the front side from the boundary L2 between the rear portion R and the crotch portion R of the absorber. Thereby, generation | occurrence | production of the deflection | deviation of the absorber 3 near a buttocks is prevented, the fitting property to the gentle convex curved surface of a wearer's buttocks by the above-mentioned side part elastic body 4 is hold | maintained, and a liquid leak is prevented. Further, since the central elastic body 5 is not present in the rear portion R, it is possible to avoid excessive tightening around the crack and prevent a decrease in comfort.

  In the present embodiment, the planar shape of the slit portion 38 is shown as a straight line shape, but is not limited to this as long as the central absorbent body 31 and the side absorbent body 32 are divided in the width direction and have the above action. For example, as a whole, a curved shape extending in the longitudinal direction may be used, or a curved portion may be included in a part of the linear shape. As what includes a curved part in a straight line, for example, as shown in FIG. 6, a slit part 38 extends outward in the width direction on the front side. In this curve, the tip of the slit portion 38 may reach the side edge of the absorber 3, that is, the front tip of the side absorber 32 may be separated from the absorber 3. As described above, when the slit portion 38 includes the curved portion, the intermediate region 32M in the side absorber 32 is the intermediate position in the width direction in the widest portion and the vicinity thereof as described above. In the case of the mode of FIG. 6, as indicated by reference numeral 32 </ b> M, it is an intermediate position of the side absorbent body 32 in the portion where the slit portion 32 is a straight line and its vicinity. It is preferable that the side elastic body 4 is disposed in the middle region 32M along the longitudinal direction.

  Moreover, although the absorber 3 of this embodiment was shown as what consists of 1 layer, as long as there exists said effect | action, it will not be limited to this, You may consist of multiple layers. For example, as shown in FIGS. 7, 8, and 9, a two-layer structure of an upper layer absorber 81 and a lower layer absorber 82 having a slit portion 38 may be used. The thicknesses of the central absorber 31 and the side absorber 32 when the absorber 3 is composed of a plurality of layers are the combined thicknesses of the upper absorber 81 and the lower absorber 82, respectively. In addition, as described above, the slit portion 38 in this case can adopt various forms that serve as the flexible shaft of the absorbent body at the time of mounting so that the side absorbent body 32 is mountain-folded. For example, the upper layer absorber 81 is not limited to the upper layer absorber 81 as shown in FIGS. 7 and 8, but may be provided in both the upper layer absorber 81 and the lower layer absorber 82 so as to communicate with each other.

  When the absorber 3 is composed of a plurality of layers, the “back surface” of the “back surface side in the thickness direction of the side absorber” on which the side elastic body 4 is disposed is the lowermost surface (non-skin surface) of the side absorber 32 ). Typically, this is the surface facing the back sheet 2. For example, as shown in FIGS. 8 and 9, when the portion where the side elastic body 4 is arranged in the side absorbent body 32 is composed of two layers of the upper layer absorbent body 81 and the lower layer absorbent body 82, the non-skin surface of the lower layer absorbent body 82 It is 82B. However, in the aspect shown in FIG. 7, the lower layer absorber 82 is narrower than the upper layer absorber 81 and covers the slit portions 38 and 38, but the side absorber 32 is disposed. The width direction intermediate region 32M ”does not reach the width. In this case, the “rear surface” of the “rear surface side in the thickness direction of the side absorber” on which the side elastic body 4 is disposed refers to the non-skin surface 81B of the upper layer absorber 81 constituting the side absorber 32. It is. The side elastic body 4 is disposed on the non-skin surface 81 </ b> B side of the upper layer absorbent body 81, and is sandwiched and joined with the back surface sheet 2. In addition, the thickness of the side part absorber 32 in this aspect is a thickness in the part which the upper layer absorber 81 and the lower layer absorber 82 with the most thickness overlap.

  Further, when the absorber 3 is composed of a plurality of layers, the “side absorber 32” when “adhering in the thickness direction from the side absorber 32 to the back sheet 2 in the region where the side elastic body 4 is arranged” The upper layer absorber 81 and the whole lower layer absorber 82 which exist in the width direction outward from the position of the slit part 38 are said. All the layers constituting the side absorber 32 are bonded and integrated with the back sheet 2 in the thickness direction (not shown). At this time, the side elastic body 4 is interposed. Other members may intervene as long as they are integrated by bonding.

  Further, the planar shape of the absorbent body 3 of the present embodiment is such that the crotch part C and the front part F have the same width and the rear part R is wide. It is not a thing. For example, the front portion F may be wider than the crotch portion C.

  In the urine collection pad 10 shown in the present embodiment, as shown in FIG. 10, leakproof three-dimensional gathers 6 and 6 may be further formed on the skin contact surface side. The three-dimensional gather portion 6 is formed of a water-repellent side sheet 61 and a three-dimensional gather elastic body 62. Specifically, the side sheets 61 and 61 are arranged on both sides of the surface sheet 1 on the skin contact surface side, and the elastic bodies 62 and 62 for three-dimensional gathers are extended in the longitudinal direction at the free ends in the width direction. It is formed by fixing with. This further enhances the ability to prevent side leakage from the crotch of liquid such as urine. In addition, the absorber 3 used in the aspect shown in FIG. 10 consists of one layer corresponding to FIG. However, the absorber is not limited to this, and may be composed of a plurality of layers. For example, you may employ | adopt the absorber shown to FIGS. 7-9 mentioned above.

As a forming material of each constituent member used for the absorbent pad of the present invention, those employed for this type of article can be used without particular limitation.
For example, the surface sheet 1 is preferably a hydrophilic thermal bond nonwoven fabric from the viewpoint of promptly absorbing excreted bodily fluid and transmitting it to the absorbent body and from the viewpoint of good touch, and particularly preferably an air-through nonwoven fabric. The surface layer 1 is preferably a thermoplastic resin fiber that has been subjected to a hydrophilic treatment, and the fiber is a fiber that has undergone a three-dimensional crimp such as a secondary crimp or a tertiary crimp. Specifically, polyethylene, polypropylene, polyester, nylon, and composite fibers thereof are prepared, and various hydrophilizing agents are applied at a stage before cutting into a predetermined length to form staples. Hydrophilic agents include various alkyl sulfonates represented by α-olefin sulfonates, acrylates, acrylate / acrylamide copolymers, ester amides, ester amide salts, polyethylene glycol and derivatives thereof, water-soluble Hydrophilic treatment with a hydrophilizing agent known to those skilled in the art, such as a reactive polyester resin, various silicone derivatives, various sugar derivatives, and mixtures thereof, can be used.

  The back sheet 2 is preferably made of a liquid hardly permeable material from the viewpoint of preventing liquid leakage on the non-skin contact surface side. Moreover, it is preferable to have moisture permeability from a viewpoint of preventing stuffiness. The liquid poor permeability means a property that hardly allows liquid to pass through, and includes waterproofness, water repellency, and liquid impermeability. Specifically, a film is formed by melt-kneading a hydrophobic thermoplastic resin and a fine inorganic filler made of calcium carbonate or the like or an incompatible organic polymer, and the film is uniaxially or biaxially stretched. The porous film obtained by doing is mentioned. Examples of the thermoplastic resin include polyolefin. Examples of the polyolefin include high to low density polyethylene, linear low density polyethylene, polypropylene, and the like, and these can be used alone or in combination.

The absorber 3 can be used without particular limitation as being capable of absorbing excrement such as urine. For example, a laminate of hydrophilic fibers or a laminate of a mixture of hydrophilic fibers and a superabsorbent polymer covered with a hydrophilic core wrap sheet can be used.
Examples of hydrophilic fibers include natural fibers such as wood pulp, cotton and hemp, polyolefin resins such as polyethylene and polypropylene, polyester resins such as polyethylene terephthalate, and single fibers made of synthetic resins such as polyvinyl alcohol resin, these It is possible to use a composite fiber containing two or more of these resins, or a semi-synthetic fiber such as acetate or rayon. When using a fiber made of a synthetic fiber, the fiber may be a heat-shrinkable fiber whose shape changes due to heat. For example, the fineness is increased by heat but the fiber length is shortened, and the fineness is hardly changed by heat, but the length occupied by the apparent fiber is shortened by changing the shape to a coil shape. Also good.
As the superabsorbent polymer, various polymer materials usually used for this type of article can be used. The superabsorbent polymer is preferably a superabsorbent polymer compound having a performance capable of absorbing and retaining water or physiological saline 20 times or more of its own weight.

As the core wrap sheet, for example, thin paper (thin paper) such as hydrophilic tissue paper, crepe paper, non-woven fabric made of hydrophilic fibers such as cotton and rayon, and synthetic resin fibers are subjected to a hydrophilization treatment. Nonwoven fabrics such as air-through nonwoven fabric, point bond nonwoven fabric, spunlace nonwoven fabric, spunbond nonwoven fabric, spunbond-meltblown-spunbond (SMS) nonwoven fabric and the like can be used.
In addition, when the absorber 3 consists of multiple layers, you may coat | cover with a separate core wrap sheet | seat for every laminated body of each layer, may laminate | stack all the layers, and may coat | cover with one core wrap sheet | seat. .

  Examples of the side elastic body 4 and the central elastic body 5 include synthetic rubbers such as styrene-butadiene, butadiene, isoprene, and neoprene, natural rubber, EVA, stretchable polyolefin, and polyurethane. As the form, thread-like or string-like (flat rubber, etc.) having a cross section of a rectangle, square, circle, polygon, etc., or a multifilament type thread-like one can be used.

  The side sheet 61 is preferably a water-repellent non-woven fabric, and is water-repellent from among non-woven fabrics, spunbonded nonwoven fabrics, meltblown nonwoven fabrics, spunlace nonwoven fabrics, heat roll nonwoven fabrics, needle punched nonwoven fabrics manufactured by the card method. Various non-woven fabrics treated with water can be used. Particularly preferred are, for example, spunbond nonwovens, spunbond-meltblown (SM) nonwovens, spunbond-meltblown-spunbond (SMS), spunbond-meltblown-meltblown-spunbond (SMMS), spunbond-spunbond-meltblown -Spunbond (SSMS) nonwoven fabric or the like is used. In addition, the elastic body 62 for the three-dimensional gathers disposed on the side sheet 61 can be the same as the side elastic body 4 and the central elastic body 5.

  The absorbent pad of the present invention is not limited to the urine collection pad of the above embodiment, and can be applied to various types. For example, it can be applied to sanitary napkins and pantilinas. In addition, you may incorporate a member suitably as a structural member of an absorbent article according to a use or a function.

  This invention discloses the following absorbent articles further regarding embodiment mentioned above.

<1>
It has a skin contact surface side surface sheet, a non-skin contact surface side back sheet, and a liquid retaining absorbent interposed between the top sheet and the back sheet, from the wearer's stomach side An absorbent pad having a longitudinal direction as a direction arranged over the back side through the inseam and a lateral direction perpendicular to the longitudinal direction,
When the absorbent body is divided into a front portion, a crotch portion, and a rear portion in the longitudinal direction, the absorbent body has two or more slit portions partially lacking an absorbent material, and the longitudinal portion extends around the crotch portion. A central absorber sandwiched between the slit portions, and a side absorber located outside the slit portions,
A side elastic body exists in the crotch part, and the side elastic body is between the side absorbent body and the back sheet, or the non-skin contact of the back sheet corresponding to the side absorbent body. Adhered to the contact surface side along the longitudinal direction,
The said center absorber is thicker than the said side part absorber, The absorptive pad which the back end part of the said slit part is located in the front side rather than the back end part of the said absorber.

<2>
The absorptive pad according to <1>, wherein the slit portion does not reach a rear end portion of the absorber.
<3>
The absorbent pad according to <1> or <2>, wherein a front end portion of the side elastic body is located on a rear side with respect to a boundary between a front portion and a crotch portion of the absorber.
<4>
The said side part elastic body is an absorptive pad as described in said <1> or <2> which does not exist in the said front part.
<5>
In the rear portion, the side elastic body continuously extends from the crotch portion, and the rear end portion of the side elastic body is located on the rear side of the rear end portion of the slit portion. The absorbent pad according to any one of 1> to <4>.
<6>
In the said slit part, the absorbent pad of any one of said <1>-<5> in which an elastic body does not exist between a surface sheet and a back surface sheet.
<7>
The said side part elastic body is an absorptive pad of any one of said <1>-<6> which passes the width direction intermediate region in the crotch part of the said side part absorber.
<8>
The absorbent pad according to any one of <1> to <7>, wherein a central elastic body is disposed on the back side of the central absorbent body.
<9>
The absorptive pad according to <8>, wherein a rear end portion of the central elastic body is located in front of a boundary between a rear portion of the absorber and a crotch portion R.
<10>
The absorbent pad according to <8>, wherein the central elastic body does not exist in the rear portion.
<11>
The absorbent pad according to any one of <8> to <10>, wherein the central elastic body extends continuously to the front portion.
<12>
The absorptive pad according to any one of <1> to <11>, wherein a front end portion of the side elastic body is located rearward of a front end portion of the slit portion.

<13>
The width direction length (S1) in the crotch part is preferably 40 mm or more, more preferably 45 mm or more at the narrowest place, and the width direction length (S1) is preferably 100 mm or less, more preferably 70 mm or less. The absorbent pad according to any one of <1> to <12>.
<14>
The width direction length (S2) of each of the side absorbers is preferably 0.5 or more and 0.8 or more as a ratio (S2 / S1) to the width direction length (S1) of the central absorber 31. More preferably, 1.0 or more is more preferable, and the ratio (S2 / S1) is preferably 2.0 or less, more preferably 1.5 or less, and further preferably 1.3 or less, <1> to <13 > Any one of>.
<15>
The thickness (H1) of the central absorber is preferably 1.1 or more, more preferably 1.2 or more, and the ratio (H1 / H2) as a ratio (H1 / H2) to the thickness (H2) of the side absorber. The absorbent pad according to any one of <1> to <14>, wherein H2) is preferably 3.5 or less, and more preferably 3.0 or less.
<16>
The rear end of the slit part preferably does not extend to the rear part of the absorber, and is preferably located on the front side of the boundary between the crotch part and the rear part of the absorber, <1> -Absorptive pad given in any 1 of <15>.
<17>
The extension length (T1) of the slit portion from the boundary between the front portion and the crotch portion of the absorber to the rear end portion of the slit portion at the crotch portion is the length in the longitudinal direction of the crotch portion of the absorber. The ratio (T1 / TC) to the thickness (TC) is preferably 85% or less, more preferably 80% or less, still more preferably 80% or less, and the ratio (T1 / TC) is preferably 60% or more, 65% The absorbent pad according to any one of <1> to <16>, wherein the above is more preferable, and 70% or more is further preferable.
<18>
In the front part of the absorber, the central part absorber is preferably extended to the front part beyond the excretion point, and the slit part 38 extends forward from the crotch part of the absorber beyond the excretion point. The absorbent pad according to any one of <1> to <17>, wherein the absorbent pad is more preferably extended to a portion.
<19>
The longitudinal extension length (T2) of the slit portion from the boundary between the front portion and the crotch portion of the absorber to the front end portion of the slit portion at the front portion is the length of the front portion of the absorber. The ratio (T2 / TF) to the length (TF) in the direction is preferably 15% or less, more preferably 12% or less, still more preferably 10% or less, and the ratio (T2 / TF) is preferably 2% or more. 3% or more is more preferable, 5% or more is still more preferable, Absorbent pad in any one of said <1>-<18>.
<20>
The absorbent pad according to any one of <1> to <19>, wherein the central elastic body does not reach a front end portion in a front portion of the absorbent body.
<21>
The absorbent pad according to any one of <1> to <20>, wherein the front end portion of the central elastic body is located on the front side of the front end portion of the side elastic body.
<22>
The planar shape of the slit portion is the absorbent pad according to any one of <1> to <21>, wherein a front end of the slit portion extends outward in the width direction.

  EXAMPLES Hereinafter, although this invention is demonstrated in more detail based on an Example, this invention is limited to this and is not interpreted. In the examples, “part” and “%” indicating the composition are based on mass unless otherwise specified.

Example 1
In “Relief Powerful Urine Pad Wide Long” (trade name, manufactured in 2014) manufactured by Kao Corporation, side elastic bodies on the back side of the left and right side absorbers with respect to the absorber having two slits Are placed in an elongated state along the longitudinal direction, and the back sheet and the spunbonded nonwoven fabric are bonded and integrated using a hot melt adhesive. At the same time, it was the same as the side elastic body except that two central elastic bodies were arranged on the back surface side of the central absorbent body, arranged in parallel in the width direction of the two sets, and arranged in an elongated state along the longitudinal direction. At that time, the hot melt adhesive was applied in a spiral pattern with a basis weight of 10 g / cm ² .
The side elastic bodies 4 are continuously arranged from the crotch part C to the rear part R in the intermediate region in the width direction of the crotch part C as shown in the schematic diagram of FIG. Therefore, the side elastic body was not disposed on the front portion F. The central elastic body 5 was continuously extended from the crotch part C to the front part F as shown in the schematic diagram of FIG. The slit part 38 is arranged along the longitudinal direction with the crotch part C as a center up to the position where the excretion point of the front part F hits, while being not extended to the rear part R and formed so as to stop at the crotch part C. did. The extension length of the central elastic body at the front portion F was 90 mm in the longitudinal direction from the boundary L1. The central elastic body was not extended to the rear portion R. In addition, the thickness (H1) of the central absorbent body was 8.5 mm, and the thickness (H2) of the side absorbent body was 3.1 mm.
As described above, a specimen of the urine collection pad of Example 1 was obtained.

(Example 2)
As shown in the schematic diagram of FIG. 11 (ii), the side elastic body is disposed on the edge in the width direction instead of the intermediate region in the width direction, and extended to the front portion F in the longitudinal direction. In the same manner as in Example 1, a specimen of the urine pad of Example 2 was obtained. The extending length of the side elastic body at the front portion F was 90 mm in the longitudinal direction from the boundary L1.

(Example 3)
The urine of Example 3 is the same as Example 1 except that the arrangement position of the side elastic body is arranged on the edge in the width direction instead of the intermediate region in the width direction as shown in the schematic diagram of FIG. 11 (iii). A test pad test piece was obtained.

Example 4
As shown in the schematic diagram of FIG. 11 (iv), the arrangement position of the side elastic body is arranged on the edge side in the width direction instead of the intermediate region in the width direction, and is not extended to the rear portion R in the longitudinal direction. That is, a urine pad test specimen of Example 4 was obtained in the same manner as Example 1 except that it was disposed only in the crotch C.

(Example 5)
As shown in the schematic diagram of FIG. 11 (v), a urine pad test specimen of Example 5 was obtained in the same manner as in Example 1 except that the central elastic body was not provided.

(Comparative Example 1)
As in the schematic diagram of FIG. 11 (vi), the comparative example is the same as in Example 1 except that the side elastic body and the central elastic body are not arranged and the thicknesses of the central absorbent body and the side absorbent body are the same. One sample was prepared.

(Absorption amount evaluation method)
In this evaluation test, a human body model (adult model) W that can send liquid from the outside and can inject liquid into the sample from a position (excretion point) E1 corresponding to the urination part was used.
First, the human body model W was placed on its back, and the samples 10 of the above urine collection pads were attached. At that time, as shown in FIG. 12 (i), the front end portion 10 </ b> W of the sample 10 was mounted so as to be a normal position K. The above-mentioned “normal position” is the position of the front end of the pad when the front part F is attracted so that there is no gap between the body and the pad after the buttocks are arranged in the rear part R. From that position, the front end of the sample 10 was translated (reference numeral 210) to the urination point E1 side, assuming a pad displacement at the time of wearing. As a result, as shown in FIG. 12 (ii), the position of the front end portion 10W of the sample 10 was shifted from the normal position K by about 3 cm (reference numeral 220). At this time, a gap 10G was formed between the crotch of the human body model and the crotch part of the sample. In this state, the sample 10 was fixed using the adhesive tape 200 on the ventral side WF (side close to the excretion point E1) and the back side WR of the human body model W (see FIG. 12 (iii)).
Next, as shown in FIG. 13, the human body model W to which the sample was fixed was tilted and fixed by 30 degrees so as to simulate the wearer's lateral position.
In this state, 75 g of physiological saline was injected at a rate of 2.5 g / sec from the excretion point using a liquid discharge pump with a speed adjustment function.
After leaving still for 10 minutes, it was confirmed whether or not there was a leak, and if there was no leak, 75 g of physiological saline was repeatedly injected from the excretion point at a urination rate of 2.5 g / sec. The test was stopped when leakage was confirmed, and the amount of absorption at the time of leakage was defined as the amount of absorption at the time of crotch leakage (lateral leakage). The test was measured at N = 2, and the average was shown in Table 1 below as the test result of each sample.

  As shown in Table 1, in the samples of Examples 1 to 5 in which the side elastic bodies are arranged and the thickness of the central absorbent body is thicker than that of the side absorbent bodies, compared to the sample of Comparative Example 1 that does not include these, It can be seen that the amount of absorption at the time of leakage is large. That is, it can be seen that the liquid absorption performance in the crotch of the present invention 1 is excellent. Among Examples 1 to 5, in Example 1, the side elastic body is disposed so as to pass through the intermediate region in the width direction, and is not disposed in the front portion in the longitudinal direction, from the crotch to the rear portion. As a result, it is understood that the absorption dose at the time of crotch leakage is the highest and the absorption performance is the best.

DESCRIPTION OF SYMBOLS 1 Top sheet 2 Back sheet 3 Absorber 31 Central absorber 32 Side part absorber 38 Slit part 4 Side part elastic body 5 Central elastic body 10 Urine pad F Front part of absorber C Crotch lower part R of absorber Rear part L1 Boundary between front part and crotch part L2 Boundary between crotch part and rear part

Claims (11)

It has a skin contact surface side surface sheet, a non-skin contact surface side back sheet, and a liquid retaining absorbent interposed between the top sheet and the back sheet, from the wearer's stomach side An absorbent pad having a longitudinal direction as a direction arranged over the back side through the inseam and a lateral direction perpendicular to the longitudinal direction,
When the absorbent body is divided into a front portion, a crotch portion, and a rear portion in the longitudinal direction, the absorbent body has two or more slit portions partially lacking an absorbent material, and the longitudinal portion extends around the crotch portion. A central absorber sandwiched between the slit portions, and a side absorber located outside the slit portions,
A side elastic body exists in the crotch part, and the side elastic body is between the side absorbent body and the back sheet, or the non-skin contact of the back sheet corresponding to the side absorbent body. Adhered to the contact surface side along the longitudinal direction,
The central absorber is thicker than the side absorber, and the rear end of the slit portion is located on the front side of the rear end of the absorber ,
In the rear portion, the side elastic body continuously extends from the crotch portion, and the rear end portion of the side elastic body is located on the rear side of the rear end portion of the slit portion . pad.   The absorptive pad according to claim 1, wherein a front end portion of the side elastic body is located on a rear side of a boundary between a front portion and a crotch portion of the absorber. The absorptive pad according to claim 1 or 2 in which an elastic body does not exist between a surface sheet and a back sheet in said slit part. The absorptive pad according to any one of claims 1 to 3 , wherein the side elastic body passes through a middle region in a width direction in a crotch part of the side absorbent body. It has a skin contact surface side surface sheet, a non-skin contact surface side back sheet, and a liquid retaining absorbent interposed between the top sheet and the back sheet, from the wearer's stomach side An absorbent pad having a longitudinal direction as a direction arranged over the back side through the inseam and a lateral direction perpendicular to the longitudinal direction,
When the absorbent body is divided into a front portion, a crotch portion, and a rear portion in the longitudinal direction, the absorbent body has two or more slit portions partially lacking an absorbent material, and the longitudinal portion extends around the crotch portion. A central absorber sandwiched between the slit portions, and a side absorber located outside the slit portions,
A side elastic body exists in the crotch part, and the side elastic body is between the side absorbent body and the back sheet, or the non-skin contact of the back sheet corresponding to the side absorbent body. Adhered to the contact surface side along the longitudinal direction,
The central absorber is thicker than the side absorber, and the rear end of the slit portion is located on the front side of the rear end of the absorber,
The intake Osamusei pad central elastic body that are arranged on the back side of the central absorbent body.   The absorptive pad according to claim 5, wherein a front end portion of the side elastic body is located on a rear side with respect to a boundary between a front portion and a crotch portion of the absorber.   In the said slit part, the absorptive pad of Claim 5 or 6 in which an elastic body does not exist between a surface sheet and a back surface sheet.   The said side part elastic body is an absorptive pad of any one of Claims 5-7 which pass the width direction intermediate region in the crotch part of the said side part absorber. The absorptive pad according to any one of claims 5 to 8 , wherein a rear end portion of the central elastic body is located in front of a boundary between a rear portion and a crotch portion of the absorber. The absorptive pad according to any one of claims 5 to 9, wherein the central elastic body extends continuously to the front portion. The absorptive pad according to any one of claims 1 to 10 , wherein a front end portion of the side elastic body is located rearward of a front end portion of the slit portion.

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