JP2009050405A - Absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent article easy to come into close contact with the user's body. <P>SOLUTION: The absorbent article is equipped with an absorbing member, which is equipped with a substrate having a width direction and the longitudinal direction crossing the width direction, and a liquid absorbent member and has the width direction and the longitudinal direction crossing the width direction. The absorbing member is superposed on the liquid permeable surface sheet of the substrate so that the longitudinal direction of the substrate and the longitudinal direction of the absorbing member become the same direction and the liquid permeable surface sheet and a liquid absorbent core are continuously or discontinuously compressed to provide to both side parts in the width direction of the substrate along the longitudinal direction of the substrate as compressed parts. The length in the width direction of the substrate of a pair of the compressed parts provided to both side parts at the part where the minimum part of the absorbing member of the substrate is superposed is more than the length in the width direction of the absorbing member of the minimum part of the absorbing member. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an absorbent article for absorbing liquid.

DESCRIPTION OF RELATED ART Conventionally, the absorbent article provided with the absorber for absorbing predetermined liquids, such as menstrual blood, is known. Such an absorbent article includes, for example, a two-layer structure having a first absorbent body (substrate) and a second absorbent body (absorber) superimposed on the first absorbent body. Further, the absorptivity is used for the purpose of bringing the second absorbent body into close contact with the groove part such as the buttocks of the body, the second absorbent body being separated from the first absorbent body, and the second absorbent body being sandwiched in the groove part. Articles have also been proposed. (For example, patent document 1).
JP 2002-159534 A

  However, in the absorbent article described in Patent Document 1, the second absorbent body is sandwiched between the groove portions in a state of being separated from the first absorbent body. May come off from the groove.

  Then, this invention is made | formed in view of the above conventional problems, Comprising: It aims at providing the absorbent article which is easy to contact | adhere to a user's body.

  In order to solve the problems as described above, the main present invention includes a liquid-permeable top sheet, a liquid-impervious back sheet, and a liquid-absorbent core interposed between the top sheet and the back sheet. Comprising a base body having a width direction and a longitudinal direction intersecting with the width direction, and an absorbent body comprising a liquid-absorbing member and having a width direction and a longitudinal direction intersecting with the width direction, The absorbent body is stacked on the liquid-permeable surface sheet of the base body so that the longitudinal direction of the base body and the longitudinal direction of the absorbent body are the same direction, and the width direction of the base body On both sides of the substrate, there are provided compression portions in which the liquid-permeable surface sheet and the liquid-absorbent core are compressed continuously or discontinuously along the longitudinal direction of the base body. An absorbent article, wherein the absorber is the absorbent body. The width of the base of the pair of compression portions provided on the both side portions in the portion of the base on which the minimum portion of the absorber is overlapped has a minimum portion with a minimum length in the direction The absorbent article is characterized in that the length in the direction is not less than the length in the width direction of the absorbent body of the minimum portion of the absorbent body.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide the absorbent article which is easy to contact | adhere to a user's body.

  This specification and the drawings disclose at least the following matters.

A liquid-permeable top sheet, a liquid-permeable top sheet, a liquid-impervious back sheet, and a liquid-absorbent core interposed between the top sheet and the back sheet, the width direction, and the width direction A substrate having a longitudinal direction intersecting with the substrate, and an absorbent body having a liquid-absorbing member and having a width direction and a longitudinal direction intersecting with the width direction, the longitudinal direction of the substrate and the absorption The absorbent body is stacked on the liquid-permeable surface sheet of the base body so that the longitudinal direction of the body is the same direction, and on both sides in the width direction of the base body, Along the longitudinal direction, the liquid-permeable surface sheet and the liquid-absorbent core are absorbent articles provided with a compressed portion that is compressed continuously or discontinuously, The absorber is a minimum portion in which the length in the width direction of the absorber is minimum. The length of the base in the width direction of the pair of compression portions provided on the both side portions in the portion where the minimum portion of the absorber is overlapped among the bases is It is an absorbent article characterized by being at least the length of the absorbent body in the width direction of the minimum portion.
According to such an absorbent article, when the base body is sandwiched between the user's thighs during wearing, the region between the compression parts is curved toward the body side with the pair of compression parts as a boundary. The entering absorbent body can be supported by the region between the compression parts. And like the above-mentioned absorptive article, by making the length of the width direction between a pair of compression parts more than the length of the width direction of the field (minimum part) of the absorber which contacts a user's groove part The absorbent body that has entered the groove portion can be supported by a substrate having a large area, and the absorbent body can enter the groove portion and can be stably maintained in close contact with the user's body.

In such an absorbent article, the minimum portion is provided at a central portion in the longitudinal direction of the absorbent body.
According to such an absorbent article, it becomes easy for the minimum part of an absorber to contact | abut with the groove part of a body.

In this absorbent article, the central portion of the absorbent body in the longitudinal direction can be separated from the base body.
According to such an absorbent article, since the region of the absorbent body (longitudinal central portion) that comes into contact with the user's groove is separable from the base body, the absorbent body is placed in the user's groove when wearing. Easy to get in. In addition, even if the absorber is inserted into the groove, the region between the compression parts of the base body is curved to the body side due to the thigh being caught, so that the absorber stably keeps entering the groove of the body. can do.

In this absorbent article, three or more of the compression parts are provided in a part of the base body where the minimum part of the absorber is overlapped, and the pair of compression parts overlaps the minimum part. Among the compression portions provided in the portion, the compression portion located on the most side in the width direction and the compression portion provided on the portion where the minimum portion overlaps the other portion in the width direction. It is the said compression part located in the side.
According to such an absorbent article, the base is likely to be bent at the compression part on the most side end side in the width direction among the compression parts provided on the base body. If the length in the width direction between the parts is equal to or greater than the length in the width direction of the minimum part of the absorber, the state in which the absorber has entered the groove can be stably maintained.

In such an absorbent article, the absorbent body includes a sheet containing the liquid-absorbing member, a skin contact surface positioned on a side where the sheet contacts the body, and a side where the sheet does not contact the body. A non-skin contact surface that is positioned, and the central portion of the absorbent body in the longitudinal direction is a part of the non-skin contact surface of the sheet and the other non-skin contact surface of the sheet. A narrow region joined so as to face along the longitudinal direction at the center in the width direction.
According to such an absorbent article, since the length in the width direction of the central portion in the longitudinal direction of the absorbent body can be made shorter than the length in the width direction of other regions of the absorbent body, the absorbent body is used. It becomes easy to get into a person's groove part. Further, since only a part of the sheet is joined, the manufacturing method is easy.

In such an absorbent article, the length of the base in the width direction of the pair of the compression portions in the portion where the narrow region is overlapped in the base is the narrow region. It is more than the length of the said width direction.
According to such an absorbent article, since the region (narrow region) of the absorbent body that contacts the user's groove is supported by the substrate having a large area, the state where the absorbent has entered the groove is stably maintained. can do.

In this absorbent article, in the longitudinal direction of the absorbent body, the narrow region is a first region in which the length of the absorbent body in the width direction is longer than the length of the narrow region in the width direction. And the second region in which the length in the width direction of the absorber is longer than the length in the width direction of the narrow region.
According to such an absorbent article, regions other than the narrow region (first region and second region) that contact the body groove are wider than the narrow region, and the user feels safe in appearance. Can be given. Further, for example, when the first region comes into contact with the vaginal opening, the liquid can be received in a wide region. Furthermore, since the first region and the second region have a relatively flat shape, for example, when the second region is in contact with the buttocks (waist region), the first region and the second region are worn by the user when the user lies down. It can prevent giving a sense of incongruity.

In such an absorbent article, the basis weight of the narrow region is lower than the basis weights of the first region and the second region.
According to such an absorber, it becomes easy to join a part of sheet | seat with a junction part. Moreover, the usage-amount of a liquid absorbing core can be suppressed.

=== This Embodiment ===
<Schematic configuration of sanitary napkin>
Hereinafter, the absorbent article will be described as a sanitary napkin. Below, let the side which contacts the body of a sanitary napkin be the surface side, and let the side which contacts underwear be a back surface side. In addition, the sanitary napkin as a whole has a shape that is long in a predetermined direction, and the predetermined direction is a longitudinal direction, and a direction that intersects the longitudinal direction is a width direction. And let the normal line direction with respect to the surface or back surface of a sanitary napkin be the thickness direction. First, the outline of the configuration of the sanitary napkin will be described.

  FIG. 1 is a plan view of the surface side of the base absorbent body 10, FIG. 2 is a plan view of the top absorbent body 20, and FIG. 3 is a diagram of the base absorbent body 10 and the top absorbent body 20 joined together. FIG. 4 is a perspective view of the sanitary napkin 1. In the plan view of the base absorbent body 10 in FIG. 1, the outline of the top absorbent body 20 is virtually indicated by a dotted line. The sanitary napkin 1 (absorbent article) includes two layers including a base absorbent body 10 (corresponding to a base) and a top absorbent body 20 (corresponding to an absorbent body) superimposed on the surface of the base absorbent body 10. Structure sanitary napkin.

  In the sanitary napkin 1, as shown in FIG. 3, on the center line CL in the width direction of the sanitary napkin 1 and on the front side from the center in the longitudinal direction, It corresponds to the opposite part). That is, in the sanitary napkin 1, the length on the rear side from the assumed position Z of the vaginal opening is longer than the length on the front side from the position Z.

  The front end 20a of the top absorbent body 20 is joined to the front end 10a of the base absorbent body 10, while the rear end 20b of the top absorbent body 20 is separated from the base absorbent body 10 with the front end 20a as a fulcrum. It is a free end that can be moved. Therefore, the user of the sanitary napkin 1 first attaches and fixes the base absorbent body 10 to the inner surface of the underwear so that the longitudinal direction is along the front-rear direction of the body, and the rear end of the top absorbent body 20 in the state where the underwear is worn. The part 20b is pulled up, and the top absorbent body 20 is mounted so as to enter the groove part such as the collar part. Then, liquid such as menstrual blood excreted mainly by the top absorbent body 20 is absorbed.

  In addition, as shown in FIG. 2, the center part in the longitudinal direction of the top absorbent body 20 of this embodiment (the narrow region 51, details will be described later) has a width in the width direction as compared with the front end side 20a and the rear end side 20b. It is narrower.

  Further, the base absorbent body 10 includes a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent base material (corresponding to a liquid-absorbent core) interposed between the top sheet and the back sheet. Have. On the surface sheet side of the base absorbent body 10, the surface sheet and the absorbent body base material are compressed in the thickness direction by grooved embossing, and as shown in FIG. 1, on both sides in the width direction of the base absorbent body 10, A pair of compression grooves 15c and 15d (corresponding to a compression portion) extending along the longitudinal direction are formed.

In the sanitary napkin 1 of the present embodiment, the length W3 in the width direction between the pair of compressed grooves 15c and 15d in the portion of the base absorbent body 10 where the narrow areas 51 of the top absorbent body 20 are overlapped. The narrow region 51 has a width direction length W1 or more.
Hereinafter, each component of the sanitary napkin 1 will be described in detail.

<About the base absorbent body 10>
5A to 5C are an AA sectional view, a BB sectional view, and a CC sectional view, respectively, in FIG. In FIG. 5, only the outline of the top absorbent body 20 is virtually indicated by a dotted line.

  The planar shape of the base absorbent body 10 is a substantially rectangular shape that is long in the longitudinal direction. The base absorbent body 10 includes an absorbent base material 12 that absorbs liquid, a top sheet 14 that covers at least the entire surface of the absorbent base material 12, and an absorbent base material 12. It has a back sheet 30 for preventing leakage of the absorbed liquid to the back side, and a side sheet 40 for forming a leak-proof wall 46 for preventing leakage of liquid to the outside in the width direction.

  The absorbent substrate 12 includes a pulverized pulp laminate 12a obtained by laminating pulverized pulp obtained by pulverizing pulp, a superabsorbent polymer mixed in the pulverized pulp laminate 12a, and a tissue paper that wraps the pulverized pulp laminate 12a. And a liquid-permeable sheet (not shown).

  The surface sheet 14 is a liquid-permeable sheet, and the material thereof is an appropriate nonwoven fabric or the like. For example, an air-through nonwoven fabric or a spunlace nonwoven fabric formed of synthetic resin fibers such as polyester or polyethylene is subjected to a hydrophilic treatment or the like. used.

  The topsheet 14 and the absorbent substrate 12 are compressed and joined together by embossing with a groove with a hot-melt adhesive interposed therebetween. The grooved embossing is performed using a pair of clamping members (not shown) facing each other. One clamping member of the pair of clamping members has a continuous rib-shaped protrusion, and an island-shaped protrusion further extends in the continuous direction of the rib-shaped protrusion at the top of the rib-shaped protrusion. Is provided intermittently. Moreover, the surface facing the rib-shaped protrusion in the other clamping member is formed flat. Therefore, as shown in FIG. 1, the compression sheet 15 formed on the topsheet 14 and the absorbent substrate 12 after the grooved embossing is higher than the low compression portion 15a compressed at a low compression rate. High compression portions 15 b compressed at a compression rate are alternately formed in the extending direction of the compression grooves 15.

  The rigidity of the region where the compressed groove 15 is formed is increased. In the sanitary napkin 1, when a compressive force is applied in the width direction by sandwiching the crotch, the compression grooves 15 c and 15 d formed on both sides in the width direction become folding start points, and the region between the pair of compression grooves (15 c and 15 d The area between) rises to the body side. On the other hand, the region on the side end side (side seat 40 side) in the width direction than the pair of compressed grooves 15c and 15d is bent along the thigh. That is, even if the base absorbent body 10 is sandwiched between the pair of compressed grooves 15c and 15d by the crotch, the base absorbent body can be prevented from being broken in the region between the pair of compressed grooves. As described above, the region surrounded by the compression groove 15 becomes a medium-high shape due to the crotch sandwiching, so that the top absorbent body 20 superimposed on the base absorbent body 10 can be easily supported from below. In addition, the contact state between the top absorbent body 20 and the base absorbent body 10 can be easily maintained, and the transition of the liquid absorbed by the top absorbent body 20 to the base absorbent body 10 is also improved.

  The back sheet 30 (corresponding to the liquid-impermeable sheet) is a liquid-impermeable sheet made of, for example, polyethylene, polypropylene, or the like, and its shape is longer than the absorbent substrate 12 in the longitudinal direction, and in the width direction. Is wider than the absorbent body 12. And the absorber base material 12 is adhere | attached with the hot-melt-type adhesive agent on the surface side of the back surface sheet 30, and the back surface sheet 30 and the surface sheet 14 are joined by welding etc. in the front-end part 30a and the rear-end part 30b. Thus, the absorber base material 12 is held between the back sheet 30 and the top sheet 14 (see the portion shown by shading in FIG. 1). Incidentally, it is preferable that a hot-melt adhesive is interposed between the layers of each sheet.

  In addition, after the sanitary napkin 1 is disposed on the inner surface of the undergarment on the back surface side of the back sheet 30, “slipping prevention” is attached and fixed to the inner surface of the undergarment so that the sanitary napkin 1 does not deviate from the arrangement position. An “attachment” is provided. The adhesion preventing portion is, for example, a hot-melt adhesive applied to a predetermined range on the back surface of the back sheet 30, and continuously from the front end portion 10a to the rear end portion 10b of the base absorbent body 10. Is formed.

  Further, in order to make the slippage between the underwear and the sanitary napkin 1 stronger, wing portions 32 are formed at both ends in the width direction of the back sheet 30 so as to extend outward in the width direction. The back surface of the wing portion 32 is also provided with a “deposition prevention attachment portion 33”. The wing portion 32 is folded outward and is attached and fixed to the outer surface of the undergarment by the displacement prevention attachment portion 33. Incidentally, the center position of the wing part 32 in the longitudinal direction coincides with the aforementioned estimated position Z facing the vaginal opening.

  As shown in FIG. 5B, the side sheet 40 is for forming leak-proof walls 46 in the vicinity of both ends in the width direction of the absorbent base material 12, and along the longitudinal direction as shown in FIG. The top sheet 14 is provided so as to cover the top surface. The side sheet 40 is made of a hydrophobic sheet, and as the material thereof, for example, a spunbond nonwoven fabric formed of synthetic resin fibers such as polypropylene and polyethylene is used.

  Specifically, as shown in FIG. 1, a pair of side seats 40 are arranged in line symmetry with respect to the center line CL in the width direction, and from the front end portion 10a to the rear end portion 10b along the longitudinal direction, that is, physiological It extends to the outline of the napkin 1 for use. Then, as shown in FIG. 5B, each side sheet 40 is fixed to the topsheet 14 by pressing at a position in the vicinity of both ends in the width direction of the absorber base material 12 to form a fixing portion 44. The fixed portion 44 to the end portion 46 are free ends. An elastic member 48 is fixed to the end portion 46 along the longitudinal direction in a stretched state. Accordingly, when the sanitary napkin 1 is bent so that the topsheet 14 is on the inside, the elastic member 48 contracts, whereby the end portion 46 that is a free end rises from the topsheet 14 and becomes a leak-proof wall 46. . In addition, as shown in FIGS. 5A and 5C, the front end portion and the rear end portion in the longitudinal direction of the end portion 46 that is a leak-proof wall are side-face 40 by a hot melt adhesive in a state where the front-end portion and the rear end portion are faced down to the surface sheet 14 side. It is a non-standing part that does not stand up.

  Further, each of the side sheets 40 extends further outward in the width direction from the fixing portion 44, that is, the outer edge thereof is the outer contour of the back sheet 30, that is, the outer contour of the sanitary napkin 1. Has reached. And an outer edge (refer the part shown with a hatching in FIG. 1) is joined by the hot-melt-type adhesive agent etc. over the outer edge of the width direction of the back sheet 30, and a longitudinal direction.

<About Top Absorber 20>
6A to 6E are an AA sectional view, a BB sectional view, a CC sectional view, a DD sectional view, and a EE sectional view, respectively, in FIG. The top absorbent body 20 includes a pulverized pulp laminate 22 (corresponding to a liquid-absorbing member) that absorbs liquid, an intermediate sheet 23 disposed on the surface side of the pulverized pulp laminate 22, and the pulverized pulp laminate 22 and The intermediate sheet 23 is wrapped together and has a shape-retaining sheet 24 (corresponding to a sheet) for holding the pulverized pulp laminate 22 and the like in a long body shape that is long in the longitudinal direction. Furthermore, at the center in the longitudinal direction of the top absorbent body 20, as shown in FIG. 6B, a part of the back surface side (corresponding to the non-contact side portion) of the shape retaining sheet 24 that does not contact the body, The other part of the back side of the shaped sheet 24 is joined so as to face along the longitudinal direction at the center in the width direction. As a result, the central portion in the longitudinal direction of the top absorbent body 20 is a narrow region 51 having a narrower width in the width direction than the front end side 20a and the rear end side 20b. Moreover, the joining part 52 which joins a part of the shape-retaining sheet 24 and the other part is not exposed on the surface side (contact side part) which is the side in contact with the body of the shape-retaining sheet 24. In FIG. 3, the joint 52 is virtually indicated by a dotted line in order to indicate the position of the joint 52.

  The intermediate sheet 23 is a liquid-permeable sheet that has better liquid drawability than the shape-retaining sheet 24, and an air-through nonwoven fabric made of synthetic resin fibers such as polypropylene is used as the material thereof. The intermediate sheet 23 is subjected to hole embossing in a state where it is overlapped with the shape-retaining sheet 24, whereby the intermediate sheet 23 is joined and integrated with the shape-retaining sheet 24. However, the intermediate sheet 23 is not essential, and for example, a density gradient may be provided by forming the shape-retaining sheet 24 in two layers.

  Incidentally, the hole embossing is performed using a pair of processing members (not shown) opposed to each other. That is, one processing member is provided with a conical protrusion, and the other opposing processing member is provided with a hole into which the protrusion enters. The processed member on which the protrusion is formed is heated, and the conical protrusion penetrates through the intermediate sheet 23 and the shape-retaining sheet 24 which are overlapped with each other, and a plurality of holes 28 (see FIG. 2). The intermediate sheet 23 is joined and integrated with the shape-retaining sheet 24 by heat-sealing the hole edge when the reference) is formed.

  The shape-retaining sheet 24 is a liquid-permeable sheet, and for example, the same material as the surface sheet 14 of the base absorbent body 10 is used as the material. The planar shape when the shape retaining sheet 24 is flatly developed into a sheet shape is substantially rectangular. Then, in a state where the hot-melt adhesive is applied to the entire surface of the shape-retaining sheet 24 in the developed state, the hot-melt adhesive is rolled into a cylindrical shape as shown in FIG. 6C and the both ends 24e in the width direction are overlapped to form a hot melt. In the state joined by the system adhesive, the pulverized pulp laminate 22 and the intermediate sheet 23 are accommodated in the longitudinal direction inside the cylinder.

  2 are folded in the absence of the pulverized pulp laminate 22 and the intermediate sheet 23 as shown in FIGS. 6A and 6E, respectively. At the same time, crimping by embossing is applied to the folded portion with a hot melt adhesive (not shown) interposed therebetween, whereby the front end portion and the rear end portion in the longitudinal direction of the shape retaining sheet 24 are sealed. The thin sealing portions 25 and 26 are formed. The rear sealing portion 26 can act as a knob when pulling up the top absorbent body 20.

  Furthermore, as shown in FIG. 2 and FIG. 6D, a leak-proof sheet 50 is provided to cover the pulverized pulp laminate 22 from the back side at least at the portion behind the top absorbent body 20 where pulverized pulp exists. ing. This leak-proof sheet 50 is a liquid-impervious sheet and has a function of preventing the liquid absorbed by the pulverized pulp laminate 22 from oozing out to the outer surface of the top absorbent body 20. That is, when the sanitary napkin 1 is used, the rear end portion 20b of the top absorbent body 20 may protrude rearward from the rear end edge 10e of the base absorbent body 10. In this case, the top absorbent body 20 Even if liquid oozes out to the outer surface (especially the back surface) of the rear end portion 20b, the underwear is prevented from being soiled when the rear end portion 20b of the top absorbent body 20 comes into contact with the underwear. As a material for the leak-proof sheet 50, a non-porous film such as polyethylene or polypropylene that can completely block liquid is desirable, but it may not be completely blocked, and may be, for example, a nonwoven fabric made of water-repellent fibers.

  And the latching | locking part 27 (FIG. 2) for fixing the top absorber 20 to the surface of the base absorber 10 is provided in the back surface side of the top absorber 20. As shown in FIG. By this latching | locking part 27, the top absorber 20 can be maintained in the suitable position adjusted at the time of mounting | wearing. As the locking portion 27, an adhesive material, a hook material (male material of a hook-and-loop fastener), or the like can be used. For example, in a hook material in which a plurality of needle-shaped pins inclined at a predetermined angle from a plane are arranged, it is difficult to catch on the fiber when pulled in one direction, and the lock is easily released in one direction. When pulling in a direction, a hook material or the like that easily catches fibers and is easily locked in the other direction can be used. Further, for the purpose of increasing the locking force, a female material of the hook-and-loop fastener corresponding to the male material of the hook-and-loop fastener provided on the top absorbent body 20 side may be provided on the base absorbent body 10 side.

<About joining of top absorber 20 and base absorber 10>
The top absorbent body 20 is superposed on the surface side of the base absorbent body 10 with the respective center lines CL in the width direction aligned, and the front absorbent body 20a and the front absorbent body 10a of the base absorbent body are aligned. Are joined together. In addition, as shown in FIG. 3, the sealing part 26 on the rear end side of the top absorbent body 20 protrudes rearward from the outer contour of the base absorbent body 10 to such an extent that the user can pick it up. Function.

  The front end 20 a of the top absorbent body 20 is firmly joined to the front end 10 a of the base absorbent body 10. In this embodiment, a hot melt adhesive HMA is applied to the main joint 10g of the base absorbent body 10 (the region indicated by the dark color in FIG. 1) (denoted as HMA in the drawing), and the adhesive is applied. Bonding is performed by bonding the region and the front end 20a of the top absorbent body 20 together. Here, the main bonding is such that if the top absorbent body 20 and the base absorbent body 10 are intentionally separated, at least one of the top absorbent body 20 and the base absorbent body 10 is inevitably damaged. The state which cannot be separable firmly joined to. Other methods of the main joining include grooved embossing.

<About the narrow region 51 and the compressed groove 15 of the top absorbent body 20>
FIG. 7 is a weighing distribution diagram of the pulverized pulp 22 in the top absorbent body 20. FIG. 8A is a cross-sectional view of the top absorbent body before forming the narrow region 51, FIG. 8B is a cross-sectional view after forming the narrow region 51, and FIG. It is sectional drawing which shows a mode that it contact | abutted to the groove part 91 (between the back of a vagina opening and an anus).

  In this embodiment, the area | region which contact | abuts the groove part 91 of the body among the top absorbers 20 is the narrow area | region 51 whose width | variety width is narrow compared with the front end side 20a and the rear end side 20b. That is, as shown in FIG. 2, the narrow region 51 whose length in the width direction is W <b> 1 is a first region in which the length (W <b> 2) in the width direction is longer than the length W <b> 1 in the width direction of the narrow region 51. 53 and the second region 54 having a length (W2) in the width direction longer than the length W1 in the width direction of the narrow region 51. Note that the width direction length W1 of the narrow region 51 is the same over the entire length direction, and the narrow region 51 is the length in the width direction of the top absorbent body 20 at the longitudinal center of the top absorbent body 20. This corresponds to the minimum portion where the minimum is.

  In order to form the narrow region 51, as shown in FIG. 7, the region of the top absorbent body 20 that contacts the body groove 91, that is, slightly behind the vaginal opening facing position Z, is hot melted. A system adhesive HMA is applied. Specifically, the hot melt adhesive HMA is applied to a position M2 from a position M1 slightly behind the vaginal opening facing position Z to a length of the body groove 91 (for example, 90 mm).

  8A and 8B, a part 52A on the back side of the shape-retaining sheet 24 and another part 52B on the back side of the shape-retaining sheet 24 are formed in the width direction by the hot melt adhesive HMA. The narrow region 51 is formed by being joined at the center of each other. Therefore, the region of the top absorbent body 20 to which the hot melt adhesive HMA is applied corresponds to the joint portion 52 that joins the part 52A of the shape retaining sheet 24 and the other part 52B.

  Further, in the present embodiment, the hot melt adhesive HMA is continuously applied from the position M1 to the position M2 in the longitudinal center portion of the top absorbent body 20, and a part 52A on the back surface side of the shape retaining sheet 24 and The other part 52B is joined so as to face along the longitudinal direction from the position M1 to the position M2. Therefore, the narrow region 51 is from the position M1 to the position M2 in the top absorbent body 20. As shown in FIG. 3, the length in the width direction is also slightly near the narrow region 51 due to the influence of the narrow region 51 compared to the front end 20a and the rear end 20b of the top absorbent body. It is getting shorter.

  If the narrow region 51 is not provided in the top absorbent body 20, even if the user tries to bring the top absorbent body 20 into close contact with the groove 91, the top absorbent body 20 is placed in the groove 91 as in the present embodiment. Can't get in quickly. In particular, in the case of a user who is lean and does not develop much meat such as the buttocks, it is difficult to sandwich the top absorbent body 20 which is not narrow in width with his own meat.

  Therefore, like the top absorbent body 20 of the present embodiment, by providing the narrow region 51 in the region that contacts the body groove 91, the top absorbent body 20 can easily enter the body groove 91. The top absorbent body 20 can be easily adhered to the top. As a result, liquid leakage is prevented.

  Further, in this embodiment, the top absorbent body 20 that is easily adhered to the body is realized by joining a part 52A on the back side of the shape-retaining sheet 24 and another part 52B. The method is relatively easy. Therefore, the sanitary napkin 1 of the present embodiment can be mass-produced at a low cost.

  Further, in the top absorbent body 20 of the present embodiment, the back surface of the shape-retaining sheet 24 is prevented so that the joint portion 52 that forms the narrow region 51 is not exposed on the side (front side) of the shape-retaining sheet 24 that contacts the body. A part of the side is joined by a hot melt adhesive HMA. For this reason, it is possible to prevent the hot melt adhesive HMA that is solidified and hardened from coming into contact with the user's skin or that the user is uncomfortable. Moreover, since chemical substances, such as hot melt adhesive HMA, do not contact a user's skin, it can be said that it is a sanitary sanitary napkin.

  That is, in this embodiment, by joining parts on the back side of the shape-retaining sheet 24 enclosing the pulverized pulp 22, it is possible to easily manufacture a sanitary napkin that easily adheres to the groove 91 of the body, In addition, since the joint portion is not exposed to the side in contact with the body, a sanitary napkin that is comfortable to wear is manufactured.

Further, as shown in FIGS. 7 and 8A, in the region corresponding to the narrow region 51 of the top absorbent body 20, the central portion in the width direction is arranged so that parts on the back side of the shape-retaining sheet 24 are easily joined to each other. The weight of the pulverized pulp 22 is smaller than the weight of the pulverized pulp 22 on both sides in the width direction (BB cross section, DD cross section). Moreover, the center part of the width direction with few pulverized pulps 22 folds as a fold origin, and it becomes easy to form right and left equal mountain fold shape like FIG. 6B. As a result, the narrow region 51 reaches the back of the body groove. In contrast, in the first region 53 in front of the narrow region 51 and the second region 54 in the rear of the narrow region 51, the pulverized pulp 22 is particularly less at the center in the width direction than at both sides in the width direction. It has never been. That is, the basis weight (g / m ² ) of the first region 53 and the second region 54 (C-C cross section) is higher than the basis weight of the narrow region 51. Thus, the usage amount of the pulverized pulp 22 is suppressed as much as possible by reducing the basis weight of the narrow region 51.

  In addition, the first region 53 and the second region 54 have a relatively planar shape (FIG. 6C) compared to the narrow region 51 (FIG. 6B) where the back surface sides of the shape retaining sheet 24 are joined together. . Since the second region 54 behind the narrow region 51 is in contact with the user's waist (back), even when the user lies down at bedtime or the like, the user feels uncomfortable ( It is possible to prevent a feeling of a step). At the time of going to bed, the excreted liquid easily flows to the waist part through the groove part 91. Therefore, the length in the width direction of the second region 54 contacting the waist part of the body is relatively wide, so that liquid leakage can be prevented. Can give the user a sense of security. In addition, since the second region 54 provided with the locking portion 27 has a planar shape (FIG. 2), the top absorbent body 20 can be reliably locked to the base absorbent body 10 during mounting.

  Similarly, the first region 53 on the front side of the narrow region 51 has a planar shape, and the top absorbent body 20 and the base absorbent body 10 are reliably finally joined at the front end portions 10a and 20a. Further, in the present embodiment, since the narrow region 51 is slightly behind the assumed vaginal opening facing position Z, the excreted liquid can be received by an absorber having a relatively large area, and liquid leakage is less likely to occur. ing.

  In addition, as described above, the user's body has a groove (recess) in the perineal area behind the vaginal opening, but a large labia develops around the vaginal opening and is a relatively convex part. . Therefore, as in this embodiment, in the vicinity of the vaginal opening (convex portion), the top absorbent body 20 is deformed into a concave shape so as to cover the large labia (the planar first region 53 is curved), and In the perineum (groove), it is preferable that the top absorbent body 20 has a mountain shape (FIG. 8C) so as to enter the groove. And like this embodiment, by joining a part of the back side of the shape-retaining sheet 24 of the top absorbent body 20 and forming the narrow region 51 (by top-folding the top absorbent body 20), Since the top absorbent body 20 is smoothly deformed (from a concave shape to a mountain shape) at the boundary between the vaginal opening and the perineum, the top absorbent body 20 is in close contact with the entire body in the front-rear direction (longitudinal direction). And liquid leakage is unlikely to occur.

  Further, in the top absorbent body 20 of the present embodiment, when the liquid from the top of the groove portion 91 reaches the joint portion 52 of the narrow region 51, the liquid is divided into the left and right in the width direction and moves to the base absorbent body 10. The liquid can be absorbed in the entire area of the top absorbent body 20, and the top absorbent body 20 can be used effectively.

In FIG. 7, the hot melt adhesive HMA is applied only in the vicinity of the center line CL, and is not applied over the entire surface from the center line CL to the right end of the top absorbent body 20. This is because the top absorbent body 20 and the base absorbent body 10 may adhere to each other during packaging when the hot melt adhesive HMA is applied to both ends (left and right edges) in the width direction of the top absorbent body 20. Because there is. However, the application position of the hot melt adhesive HMA is not limited to this, and the hot melt adhesive HMA may be applied to the vicinity of both ends in the width direction of the top absorbent body 20. By doing so, a narrower narrow region 51 can be formed, so that the top absorbent body 20 can easily enter the depth of the body groove. The hot-melt adhesive HMA used is preferably an olefin-based one that has little tack when solidified (one that has little stickiness).
Further, by not applying the hot melt adhesive HMA over the entire surface from the center line CL to both ends (left and right ends) in the width direction, the cross-sectional shape of the narrow region 51 is as shown in FIG. The length in the width direction becomes longer toward the bottom, and the top absorbent body 20 can be in close contact with the side surface from the top of the groove 91 of the body.
In FIG. 7, the hot melt adhesive HMA is applied only to the region on the right side of the center line CL. However, the present invention is not limited to this, and the hot melt adhesive HMA may be applied to both the left and right regions sandwiching the center line CL. Good. However, when the top absorbent body 20 is folded in the center line CL as the folding position, the hot melt adhesive HMA is applied only to one side (right side or left side) in the width direction with the center line CL as a boundary. However, the consumption of adhesive can be reduced.

  By the way, in the sanitary napkin 1 of the present embodiment, the top absorbent body 20 and the base absorbent body 10 can be separated in a region other than the main joint 10g shown in FIG. Therefore, at the time of wearing, the user causes the top absorbent body 20 to enter the groove portion of the body to adjust the position of the top absorbent body 20, and in a state where the top absorbent body 20 is adjusted, the locking portion 27 of the top absorbent body 20. Is fixed to the base absorbent body 10 (or underwear). Thereby, the top absorbent body 20 is positioned in a state of entering the groove portion of the body. During wearing, the region between the pair of compressed grooves (the region between 15c and 15d) of the base absorbent body 10 is curved toward the body side due to the user's crotch pinching, so that the groove portion of the body The top absorbent body 20 that has entered can be supported by the region between the pair of compressed grooves 15c and 15d. Here, of the region between the pair of compressed grooves 15c and 15d on the base absorbent body, a region where the narrow region 51 of the top absorbent body 20 is overlapped is referred to as a “curved portion”.

  Moreover, even if the top absorbent body 20 enters the depth of the groove and the curved portion and the top absorbent body 20 are not in contact with each other, the curved portion can be positioned relatively close to the top absorbent body 20 that has entered the groove. Therefore, even if the top absorbent body 20 is likely to be gradually removed from the deep position of the groove portion during mounting, the curved portion can support the top absorbent body 20 from below, so that the top absorbent body 20 is removed from the groove portion. It is possible to prevent it from coming off completely.

  FIG. 9A is a cross-sectional view of the narrow region 51 and the bending portion 17 during mounting of the sanitary napkin 1 of the present embodiment, and FIG. 9B illustrates the narrow region 51 during mounting of the sanitary napkin 1 ′ of the comparative example. It is sectional drawing of curved part 17 '. In the sanitary napkin 1 ′ of the comparative example, the width W4 of the curved portion 17 ′ (the region between the pair of compressed grooves 15 ′ extending in the longitudinal direction of the base absorbent body 10 ′) is the narrow region 51. Is shorter than the length W1 of the top absorbent body 20 in the width direction. In such a sanitary napkin 1 ′, the area of the curved portion 17 ′ is smaller than the area of the bottom surface portion of the narrow region 51, and the top absorbent body 20 that has entered the body groove cannot be stably supported. If it does so, when a user moves violently, the top absorber 20 will come off from the groove part of a body easily.

  Therefore, in the sanitary napkin 1 of this embodiment, the length W3 in the width direction of the curved portion 17 is longer than the length W1 in the width direction of the narrow region 51 (the compressed grooves 15c and 15d have a width). The width W3 in the width direction of the curved portion 17 is the length from the leftmost position of the compressed groove 15c to the rightmost position of the compressed groove 15d). If it does so, the area of the curved part 17 will become larger than the area of the bottom face part of the narrow area | region 51, the top absorber 20 which entered the groove part of the body can be supported stably, and the top absorber 20 adheres to a groove part. Can be maintained.

  Further, for example, when the user tilts to the right in the width direction, in the sanitary napkin 1 ′ of the comparative example, the curved portion 17 ′ of the base absorbent body 10 ′ attached and fixed to the underwear The curved portion 17 ′ having a small area may not be able to tilt the top absorbent body 20 to the right side. If it does so, the top absorber 20 will become easy to remove | deviate from a groove part. On the other hand, in the sanitary napkin 1 of the present embodiment, the top absorbent body 20 can be tilted to the right side by the curved portion 17 having a large area, and the top absorbent body 20 can be kept in close contact with the groove. it can.

  That is, the sanitary napkin 1 of the present embodiment has a narrow width direction length of the region (curved portion 17) between the pair of compressed grooves in the region where the narrow region 51 is overlapped in the base absorbent body 10. Since it is more than the length of the width direction of the area | region 51, the top absorber 20 which entered the groove part of the body can be stably supported by the curved part 17, and is a sanitary napkin which is easy to adhere to a user's body. .

<Packaging of sanitary napkin 1>
FIG. 10A is a diagram showing a state of individual packaging of sanitary napkins. The top absorbent body 20 is joined to the base absorbent body 10 and is folded together in a single wrapping sheet 35 while being folded in four at the longitudinal folding positions P1, P2, P3, and lead. Fastened with tape 36.

  As shown in FIG. 7, at the folding positions P1, P2, and P3 along the three width directions in the longitudinal direction, the basis weight of the pulverized pulp 22 is more in the width direction than the portions adjacent to each other in the longitudinal direction. The sanitary napkin 1 is easily folded in four (the same applies to the base absorbent body 10).

  As shown in FIG. 10A, the wing part 32 is folded back toward the top absorbent body 20 and packaged. Incidentally, the wing part 32 and the protective sheet 34 are bonded so that the adhesive 33 on the back surface of the wing part 32 and the surface of the protective sheet 34 coated with the release agent face each other. In this way, when the user unwraps the sanitary napkin 1, the adhesive 33 is transferred to the wing portion 32 and remains on the wing portion 32 due to the action of the release agent. Part 33 "is formed. In this manner, by sandwiching the top absorbent body 20 between the protective sheet 34 and the base absorbent body 10, it is possible to prevent positional displacement of the top absorbent body 20 when folded. Similarly, the locking portion 27 also plays a role of preventing the positional displacement of the top absorbent body 20 when folded.

  In the individual packaging, the top absorbent body 20 and the base absorbent body 10 may be temporarily joined so as to be separable by embossing or the like at the rear end portion (temporary joint portion 16). By temporarily joining the rear end portion 16, the top absorbent body 20 is not displaced with respect to the base absorbent body 10, and the top absorbent body 20 can be prevented from being wrapped in a bent state.

<Modification of packaging of sanitary napkin 1>
FIG. 10B is a diagram showing a packaging form in which the sanitary napkin 1 is folded in three. In this modification, the sheets are packaged together in a single packaging sheet 35 while being folded in three at the folding positions of the two places P1 and P2 in the longitudinal direction.

  At that time, the hot melt adhesive HMA (joint portion 52) is not present on the folding positions P1 and P2 along the width direction. By doing so, since it is avoided that the shape retaining sheet 24 is folded in the narrow region 51 where the parts on the back surface side are joined, the joined portion 52 is hardly peeled off and is easily folded.

=== Second Embodiment ===
In the above-described embodiment, the top absorbent body 20 and the base absorbent body 10 are permanently joined at the main joint 10g so as not to be separated, but in the second embodiment, a portion corresponding to the main joint 10g (hereinafter, referred to as the main joint 10g). In this case, the top absorbent body 20 and the base absorbent body 10 are separable.

  For example, a female material of a hook-and-loop fastener is fixed to the joint portion of the base absorbent body 10, while a male material of the hook-and-loop fastener is fixed to the back surface side of the front end portion 20 a of the top absorbent body 20 corresponding to the female material. Thus, the top absorbent body 20 and the base absorbent body 10 can be attached and detached at the joint portion.

  Therefore, a packaging form in which the base absorbent body 10 and the top absorbent body 20 are packaged separately (not shown) is possible. That is, with respect to the base absorbent body 10, only the base absorbent body 10 is placed on the packaging sheet, and the base absorbent body 10 is folded into four at the predetermined folding positions P1, P2, and P3 and packaged together with the packaging sheet. The top absorbent body 20 is also folded in four at the predetermined folding positions P1, P2, and P3 together with the packaging sheet in a state where only the top absorbent body 20 is placed on a packaging sheet different from the above. Fold and wrap. Preferably, the folding positions of the base absorbent body 10 and the top absorbent body 20 are the same. If it is the same position, when the top absorbent body 20 is joined to the base absorbent body 10, the folding positions can be overlapped, so that joining is easy.

  In this way, when the base absorbent body 10 and the top absorbent body 20 are packaged separately, the package of the base absorbent body 10 and the package of the top absorbent body 20 are each bundled into a predetermined number and separated into separate bags. To form two containers, and these two containers are stored together in one bag, which is supplied to the market as the smallest unit of sale. However, the minimum unit of sale is not limited to this, and for example, the container for the top absorbent body 20 and the container for the base absorbent body 10 may be sold separately.

  Incidentally, when the top absorbent body 20 and the base absorbent body 10 are sold separately, there are the following advantages. For example, the sanitary napkin does not have to be separately purchased for daytime and nighttime, and the house inventory of the sanitary napkin can be reduced. As a sanitary napkin for daytime with less menstrual blood, only the base absorbent body 10 is used. On the other hand, when used for night with much menstrual blood, the top absorbent body 20 is joined to the base absorbent body 10 for use. To do. In other words, the sanitary napkin for daytime can be transformed and used for nighttime, thereby reducing the housing inventory. In addition, when the top absorbent body 20 has sufficiently absorbed menstrual blood after being used for a predetermined time, it is possible to replace only the top absorbent body 20 without replacing the base absorbent body 10, As the base absorber 10 is replaced less frequently, dust can be reduced.

  By the way, when the top absorbent body 20 and the base absorbent body 10 are individually packaged, the material of the packaging sheet for the top absorbent body 20 is, for example, an SMS nonwoven fabric (three upper and lower spunbond nonwoven fabric sandwiched between meltblown nonwoven fabrics). Nonwoven fabrics such as a layered nonwoven fabric are preferred. This is because the top absorbent body 20 is not coated with a slip-preventing adhesive on the back side for the base absorbent body 10, so if the packaging sheet is a non-woven fabric, a surface fastener for joining between the fiber gaps. Since the top absorbent body 20 can be effectively locked by the male material or the locking portion 27, the positional displacement in the width direction of the top absorbent body 20 when folded in four can be suppressed, and the user can unwrap the package. You can improve the appearance of the appearance.

=== Other Embodiments ===
In the above-described embodiment, the top absorbent body 20 and the rear end portion of the base absorbent body 10 (temporary joint portion 16 in FIG. 10) can be separated. Absent. Further, the top absorbent body 20 and the base absorbent body 10 may be permanently joined across the entire length in the longitudinal direction, but the narrow region 51 of the top absorbent body 20 can be separated from the base absorbent body 10. As a result, the top absorbent body 20 can easily enter the body groove, and the top absorbent body 20 can be more closely attached to the body groove.

  In the above-described embodiment, the oval compression groove 15 is formed on the base absorbent body 10, but the present invention is not limited to this. For example, like the ellipse, the center portion of the base absorbent body 10 is not surrounded by the compressed groove, and the pair of compressed grooves may extend only in the longitudinal direction at both sides in the width direction of the base absorbent body 10. . As shown in FIG. 1, in the compressed groove 15 of the above-described embodiment, the low compression portions 15 a and the high compression portions 15 b are alternately arranged, and the top sheet 14 and the absorbent base material 12 are continuous along the longitudinal direction. However, it is not limited to this. For example, the dot-shaped compression part by embossing may be formed discontinuously along the longitudinal direction.

  In the base absorbent body 10, three or more compressed grooves along the longitudinal direction may be formed in a region where the narrow region 51 is overlapped. In such a case, the most one side in the width direction If the length in the width direction of the base absorbent body 10 between the compressed groove on the (right side) and the compressed groove on the other side (left side) is equal to or greater than the length in the width direction of the narrow region 51, the top absorbent body 20. Can be kept in close contact with the body. This is because the base absorbent body 10 is easy to fold with the compression groove on the most side end side in the width direction as a fold starting point, and therefore supports the top absorbent body 20 in the region between the pair of compression grooves on the most side end side. Because it becomes.

  In the above-described embodiment, the front end of the top absorbent body 20 is formed by joining the length in the width direction of the longitudinal center portion (narrow region 51) of the top absorbent body 20 to a part of the rear surface side of the shape retaining sheet 24. Although the length in the width direction is shorter than the side 20a and the rear end side 20b, the present invention is not limited to this. For example, the weight of the pulverized pulp 22 at the central portion in the longitudinal direction of the top absorbent body 20 may be reduced as compared with the weight of other regions to form the constricted portion. Then, if the length in the width direction between the pair of compressed grooves in the region where the constricted portion is overlapped on the base absorbent body is equal to or greater than the length in the width direction of the constricted portion, the constricted portion becomes stable. Can adhere to the groove of the body. However, since the constricted portion is thinner overall than the narrow region 51 of the present embodiment, the constricted portion cannot contact the side surface portion of the body groove portion, and liquid leaks from between the groove portion and the constricted portion. Cheap. Further, since the weight of the pulverized pulp is reduced in the constricted portion 51 with respect to the narrow region 51, there is a possibility that the liquid overflows when a large amount of liquid is excreted. However, on the other hand, compared to the above-described embodiment, the top absorbent body having a constricted portion does not need to apply an adhesive to the back side of the shape-retaining sheet 24 and join parts of the shape-retaining sheet 24 to each other. Therefore, the manufacturing method is further facilitated.

  The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it is needless to say that the present invention includes equivalents thereof.

It is a top view of the surface side of a base absorber. It is a top view of the surface side of a top absorber. It is a figure which shows the state with which the base absorber and the top absorber were joined. 1 is a perspective view of a sanitary napkin 1. FIG. 5A to 5C are cross-sectional views of the base absorbent body. 6A to 6E are cross-sectional views of the top absorbent body. It is a measurement distribution map of the pulverized pulp in a top absorber. FIG. 8A is a cross-sectional view of the sanitary napkin of the present embodiment, and FIG. 8B is a cross-sectional view of a sanitary napkin of a comparative example. 9A is a cross-sectional view before the formation of the narrow region, FIG. 9B is a cross-sectional view after the formation of the narrow region, and FIG. 9C is a view showing a state where the narrow region is in contact with the groove portion of the body. FIG. 10A is a diagram showing a state of individual packaging of sanitary napkins, and FIG. 10B is a diagram showing a modification of individual packaging.

Explanation of symbols

1 sanitary napkin 10 base absorbent body, 10a front end, 10b rear end, 10g main joint,
12 absorbent substrate, 12a pulverized pulp laminate, 14 surface sheet,
15 Compression groove, 16 Temporary joint part, 17 Curved part 20 Top absorber, 20a Front end part, 20b Rear end part,
22 ground pulp laminate, 23 intermediate sheet, 24 shape-retaining sheet,
25 sealing part, 26 sealing part, 27 locking part, 28 hole,
30 back sheet, 30a front end, 30b rear end,
32 wing parts, 33 attachment parts for slip prevention, 34 protective sheets,
35 Packaging sheet, 36 Lead tape,
40 side seats, 44 fixing parts, 46 end parts, 48 elastic members,
50 leak-proof sheet, 51 narrow region, 52 joint, 53 first region,
54 second region, 90 underwear, 91 groove,
CL center line, Z vaginal opening expected position

Claims (8)

A liquid-permeable top sheet, a liquid-impervious back sheet, a liquid-absorbent core interposed between the top sheet and the back sheet, a width direction, and a longitudinal direction intersecting the width direction A substrate having, and
An absorbent body comprising a liquid-absorbing member and having a width direction and a longitudinal direction intersecting the width direction;
Comprising
The absorbent body is stacked on the liquid-permeable surface sheet of the base body so that the longitudinal direction of the base body and the longitudinal direction of the absorbent body are the same direction,
On both sides of the base in the width direction, the liquid-permeable surface sheet and the liquid-absorbent core are compressed continuously or discontinuously along the longitudinal direction of the base. An absorbent article provided with a compression part,
The absorber has a minimum portion in which the length in the width direction of the absorber is minimum,
The length of the base in the width direction of the pair of compression portions provided on the both side portions in the portion where the minimum portion of the absorber is overlapped among the bases,
The absorbent article characterized by being at least the length of the absorber in the width direction of the minimum portion of the absorber. The absorbent article according to claim 1,
The said minimum part is provided in the center part in the said longitudinal direction of the said absorber, The absorbent article characterized by the above-mentioned. The absorbent article according to claim 2,
The absorbent article, wherein a central portion of the absorbent body in the longitudinal direction can be separated from the base body. The absorbent article according to any one of claims 1 to 3,
Three or more compression parts are provided in a portion of the base body where the minimum part of the absorber is overlapped,
A pair of said compression part was provided in the part where the said compression part located in the one side in the said width direction among the said compression parts provided in the part where the said minimum part overlaps, and the said minimum part are overlapped An absorptive article characterized by being the compression part located in the most other side in the width direction among the compression parts. The absorbent article according to any one of claims 1 to 4,
The absorbent body includes a sheet containing the liquid-absorbing member, a skin contact surface located on the side where the sheet contacts the body, and a non-skin contact surface located on the side where the sheet does not contact the body Have
The central portion of the absorbent body in the longitudinal direction is such that a part of the non-skin contact surface of the sheet and another part of the non-skin contact surface of the sheet are in the central portion in the width direction. An absorbent article, which is a narrow region joined so as to face each other along the longitudinal direction. The absorbent article according to claim 5,
The length of the base in the width direction of the pair of compression portions in the portion where the narrow region is overlapped in the base is equal to or longer than the length of the absorber in the narrow region. Absorbent article characterized by being. The absorbent article according to claim 5 or 6,
In the longitudinal direction of the absorber, the narrow region includes a first region in which the length in the width direction of the absorber is longer than the length in the width direction of the narrow region, and the width of the absorber. An absorbent article having a length in a direction between the narrow region and a second region longer than a length in the width direction. The absorbent article according to claim 7,
The fabric weight of the said narrow area | region is lower than each fabric weight of the said 1st area | region and the said 2nd area | region, The absorbent article characterized by the above-mentioned.