JP4646230B2 - Interlabial pad - Google Patents

Description

  The present invention relates to an interlabial pad that is worn between the labia in order to prevent leakage of bodily fluids due to misalignment.

Women's sanitary products are widely used as absorbent articles that have an absorbent body and absorb bodily fluids. However, since sanitary products are generally attached to underwear or shorts, they move according to the wearer's clothing and move between the wearer's crotch. In some cases, the adhesiveness to the portion is lowered, and menstrual blood leaks through the gap between the wearer and the sanitary product.
Therefore, it has been attempted to improve the adhesion with the body and prevent leakage of menstrual blood by using auxiliary tools on sanitary napkins, but these auxiliary tools are joined to sanitary napkins. Therefore, when the sanitary napkin is deformed such as misalignment or twisting according to the wearer's activity, the assisting device also causes misalignment or deformation.

Therefore, an interlabial pad has been developed as one that is put between female labial lips to increase adhesion to the body and suppress menstrual leakage.
However, since it is difficult to attach the interlabial pad to an appropriate place, it is a problem that the interlabial pad is sufficiently adhered to the pubic region.
Therefore, the interlabial pad is curved to the skin contact side, and a finger insertion space, that is, a finger insertion sinus is provided on the back side, for example, on the non-body side (non-skin wearing side) of the interlabial pad Insert a stopper into the interlabial pad at the time of wearing by installing a stopper that prevents further insertion of the finger in the cave for inserting the finger in the sinus for inserting the finger so that the abdomen of the finger touches it. An interlabial pad has been proposed that allows the interlabial pad to be smoothly mounted in a state where the positional relationship of the finger with respect to the interlabial pad is stabilized by abutting the finger against the stopper (patent) Reference 1).

  In addition, a mini-sheet piece for forming a finger insertion opening and a finger insertion space is provided on the non-skin contact surface side of the interlabial pad, and the finger is inserted through the finger insertion opening, and the finger of the other hand is inserted. It is possible to replace the interlabial pad without soiling the fingers by inserting and removing the fingers from the finger insertion opening even when the labia are opened and attached at an appropriate position in the labia and taken out after use. The thing is also known (refer patent document 2).

  However, all of the interlabial pads (interlabial absorbent articles) described in Patent Documents 1 and 2 merely sandwich the pad between the labia, and there is a possibility that the pad may be accidentally detached during wearing when it is worn shallowly. is there. There is also a risk of falling together when the shorts are removed. Furthermore, since the skin contact surface is exposed when it is discarded after use, there is a problem that it is soiled when touched with a hand, for example.

WO2002 / 094150 WO2002 / 094146

  The present invention has been made in view of the problems of the above-described conventional auxiliary pad or interlabial pad, and its purpose is to fit the interlabial pad into the labial shape so that menstrual blood can be used from the interlabial pad or in combination. Prevents leakage from sanitary napkins, etc. and makes it difficult to come off, so that the skin contact surface is not exposed before use, so it can be stored hygienically, and it can be disposed of without sanitizing hands after use. It is to be.

The invention according to claim 1 includes a top sheet, a back sheet, and an absorber interposed between both sheets, and the skin contact surface of the top sheet and the non-skin contact surface of the back sheet are front and back at the center in the transverse direction. An interlabial pad comprising two pad pieces each having a reversible cross-sectional shape, the pad pieces being joined to each other at the center in the transverse direction along the longitudinal direction so as to be reversible. Jo said between non-skin contact surface is connected by the connecting member, in a state in which the skin contact surface is folded to the front side, the finger insertion section is formed between the connecting member and the front Kihi skin contact surface, the connecting member is in the transverse direction central portion and the hanging one end thereof between the free end portion is bonded to the non-skin contact surface member and the hanging Ri lowered down like suspended at the other end of the member of the pad pieces It consists supported elastic member, and wherein the hanging member And having a length to permit reversal of the topsheet skin contact surface and the backsheet skin noncontacting surface.
The invention of claim 2 includes a top sheet, a back sheet, and an absorbent body interposed between the two sheets, and the skin contact surface of the top sheet and the non-skin contact surface of the back sheet are both sides in the center in the transverse direction. The interlabial pad is composed of two pad pieces each having a double-folded cross-section that can be turned upside down, and the pad pieces are joined to each other at both sides at the center in the transverse direction along the longitudinal direction. cage, wherein the inter-folded shape of the non-skin contact surface is connected by the connecting member, in a state in which the skin contact surface is folded to the front side, the connecting member and the non-skin finger insertion section between the contact surfaces The connecting member includes a suspension member whose one end is joined to the non-skin contact surface between the center portion in the transverse direction and the free end of the pad piece, and the other end of the suspension member. an elastic member supported on the hanging down form, or The hanging member is characterized by having a length to permit reversal of the topsheet skin contact surface and the backsheet skin noncontacting surface.

(Function)
Since the interlabial pad according to the present invention can be folded in two so that it can be folded back at the center in the transverse direction or both sides thereof, before use, it is folded in half so that the skin contact surfaces face each other. This is folded back so that the skin contact surface becomes the front side, and when it is discarded after use, it is folded again so that the skin contact surfaces face each other again.
In use, the dominant finger is inserted into the non-skin contact surface of the pad body, that is, the separation part (finger insertion part) formed between the back sheet and the connecting member, and the labial area is opened with the finger of the other hand to open the pad. Installing.
The interlabial pad is elastically deformed by the connecting member portion, so that it is appropriately deformed according to the wearer's labia shape due to the applied pressure. At that time, pressure acts from the pad main body to the labial side due to the compressive stress of the connecting member. .
In other words, when the pad body is mounted between the labia, the pad body generates an outward force (stress) inside the labia and fits into the labial shape. Prevents falling off from.

According to the present invention, before use, the skin contact surfaces are folded in two so as to face each other, so that they are not exposed, and therefore are not easily contaminated and are sanitary. In addition, after use, the skin contact surface, that is, the use surfaces can be folded and discarded so that they face each other. In particular, the size of the elastic member supported by the suspension member can be made relatively small, so the cost is low. Since there is a suspension member in the cross-sectional shape and the chevron shape of the interlabial pad that can be manufactured, it is unlikely that it will become contaminated with menstrual blood and therefore will not stain the hands.
In addition, since the interlabial pad generates compressive stress against elastic deformation, the absorbent body itself fits by applying an appropriate stress to the labium in response to the pressure applied to the labium after mounting, and is difficult to come off. can do. Moreover, in a shallow wearing state, it is detached at the same time as wearing and returns to the wearer's hand, so that wearing mistakes can be prevented.

The present invention will be described according to embodiments shown in the drawings.
FIG. 1A is a perspective view schematically showing a shape when the interlabial pad according to the first embodiment of the present invention is used, and FIG. 1B is a cross-sectional view taken along line XX of FIG. 1A. FIG. 1C is a side view showing the shape before and after use.

  The interlabial pad 10 according to the first embodiment, as shown in FIGS. 1A to 1C, is composed of left and right pad pieces 10 b and 10 c joined along a joint part 10 a in the longitudinal direction, and each pad piece. 10b and 10c are a liquid-permeable surface sheet 12 that is on the skin contact surface side in use, a liquid-impermeable back sheet 13 on the opposite side to the skin contact surface side, that is, the non-skin contact surface side, The pad body 15 is composed of an absorbent body 14 disposed between the sheets, and the sheets 12 and 13 are joined to each other with a well-known joining means such as heat seal, high frequency seal, and ultrasonic seal in a state where the absorbent body 14 is sandwiched. It is joined.

Further, as shown in FIG. 1A, the interlabial pad 10 can be folded back with the skin contact surface (surface sheet 12) facing the joint portion 10a, that is, the central portion in the transverse direction along the longitudinal direction. The connecting member 16 is attached between the back sheet 13 and the non-skin contact surface. The connecting member 16 includes an elastic member 16a made of an elastic material such as urethane having elasticity, and two, for example, non-skinned members bonded to both end portions and the other end portions to non-skin contact surfaces, respectively. The suspension member 16b is made of an extensible sheet.
Here, the length between the non-skin contact surface and the elastic member 16 a hanging member 16b, the pad pieces 10b, 10c when the inverted around the joints 10a, coupled with said elastic member 16a Thus, the length that allows the reversal, that is, the length that does not hinder the reversal of the pad pieces 10b and 10c due to the suspension member 16b that does not stretch even if the elastic member 16a is stretched is set. Has been.

  In the state before use, the interlabial pad according to the present embodiment is folded in two so that the non-skin contact surface is the front side as shown in FIG. 1C, that is, the skin contact surfaces face each other. Store in. By folding the skin contact surfaces inward in this way, even after taking out from the package (individual packaging), the skin contact surfaces will not be directly exposed until they are reversed, so that dirt adheres. It is difficult and can be handled hygienically.

  In use, the pad pieces 10b and 10c are inverted so that the skin contact surface is on the front side, and in this state where the skin contact surface is on the front side, the end portions of the pad pieces 10b and 10c, that is, free portions The end is given a tendency to open up to the free length of the connecting member 16 having compression elasticity, and a finger having a substantially triangular cross section is inserted between the back sheet 13 of the folded pad body 15 and the connecting member 16. A separation portion that becomes the portion 20 is formed.

  The interlabial pad 10 is mounted by inserting an index finger or middle finger of a dominant hand into the finger insertion portion 20 to hold the pad 10 and mounting it between the labia as it is with the surface sheet 12 side as the skin contact surface facing up. To do. After the mounting, when the connecting member 16 receives a compressive action due to pressure, it opposes the elastic force against the labia, so the interlabial pad 10 always fits between the labia and leaks such as menstrual blood. It doesn't happen or come off.

Further, after use, as in the case before use, when the pad pieces 10b, 10c are folded back with the topsheet 12, that is, the skin contact surface inside, the hanging member 16b and the elastic member 16a As shown in FIG. 1C, the skin contact surface that is exposed and becomes soiled by the contraction force of the elastic member 16a can be maintained inside, and the non-skin contact surface can be maintained outside. .
Thus, since the interlabial pad 10 after use maintains the state where the skin contact surfaces face each other and the non-skin contact surface that is not soiled is exposed on the outside, the exposed surface is gripped directly by hand. Can be discarded, and there is no risk of dirty hands.

  FIG. 2 is a side view of the interlabial pad according to the second embodiment of the present invention. In this embodiment, as a result of lengthening the suspension member 16b of the connecting member 16 connected between the back sheets 13 of the pad pieces 10b and 10c with the skin contact surface on the front side, the elastic member 16a together with the suspension member 16b The thing of the shape exposed below the lower end of the pad pieces 10b and 10c is shown. Also in this case, the operation and the like are basically the same as those in the first embodiment. However, if the length of the suspension member 16b is too long, a gap is generated between the lower end of the non-skin contact surface and the elastic member 16a when folded so that the non-skin contact surface is on the front side. The length is preferably such that no gap is generated.

  In the above embodiment, the interlabial pad 10 has a configuration composed of the two pad pieces 10b and 10c that are rotatable around the joint portion 10a in the central portion in the transverse direction. However, the configuration is not limited to this. . For example, the interlabial pad 10 is integrated, the top sheet 12 and the back sheet 13 are made of a stretchable material, and the top sheet 12 (and / or the back sheet 13) is an absorbent at the center in the transverse direction of the pad body 15. 14 may be bonded along the longitudinal direction, and the pad main body 15 may be foldable or valley-foldable around the bonding line.

FIG. 3 shows this embodiment. FIG. 3A is a perspective view of the interlabial pad in use, that is, with the skin contact surface on the front side, and FIG. 3B is a cross-sectional view taken along line XX of FIG. 3A.
In this embodiment, as shown in FIG. 3B, the topsheet 12 is bonded to the absorbent body 14 at the center in the transverse direction of the pad main body 15, and the flexibility is increased, and bending is performed along the bonded portion 10a ′. In addition to being able to be easily performed, the absorber 14 is joined at the central portion in addition to the side edges in the transverse direction, so that the absorber is held at a predetermined position at the time of reversal and has good absorbability. is there.

FIG. 4 shows yet another embodiment. FIG. 4A is a side view showing a state before and after use, that is, a state in which the non-skin contact surface is on the front side, and FIG. 4B is a side view showing a state in use, that is, with the skin contact surface on the front side.
As shown in FIG. 4A, in the state before and after use, the skin contact surface has a convex shape with the central portion in the transverse direction protruding upward, and the substantially central portions 10d and 10e in the transverse direction on both side portions of the central portion. In the folded portions 10d and 10e, the central skin contact surface and the folded skin contact surface are opposed to each other so as not to be exposed.
In the present embodiment, the suspension member 16b is attached to the folded portion of the non-skin contact surface. In this configuration, in a state where the non-skin contact surface and the front side, the although a gap between the lower end of the elastic member 16a and the non-skin contact surface, the elastic member 16 a is in a stretched state.

FIG. 4B shows a use state, that is, a state in which the folded portions 10d and 10e are opened. In this state, the skin contact surface is exposed on the front side, and a finger insertion portion 20 for wearing is formed between the non-skin contact surface and the connecting member 16 , so a finger is inserted into the finger insertion portion 20. And attach between the labia. Other actions and the like are the same as those of the other embodiments already described, and in a state of being mounted between the labia, the compressive stress of the connecting member 16 can be applied to the labia for fitting.

  The absorbent body 14 and thus the pad main body 15 have a vertically long shape in a plan view. However, if the pad body 15 is substantially vertically long, it can be freely rectangular or oblong. The pad main body 15 is a type in which the absorbent body is wrapped with a cover sheet made of a liquid-permeable material, for example, in addition to the pad body 15 sandwiched and sealed between the top sheet and the back sheet as in the above embodiment, etc. Other known types may be used. The elastic member 16a may also be a rubber member or a mechanical spring.

  Here, the compressive stress of the interlabial pad 10 is preferably 2 to 15 cN, and if the compressive stress is lower than 2 cN, the fitting property is deteriorated, and the interlabial pad 10 falls off from between the labia. In addition, when the compressive stress is higher than 15 cN, a feeling of strangeness during mounting occurs.

The interlabial pad (absorbent article) of the present embodiment must be easily deformed and not feel uncomfortable when sandwiched between the labia. That is, it must have a softness that can be easily deformed along the space between the labia. On the other hand, it must not be crushed completely during use. That is, it must have resilience to deformation.
For this reason, pressurization evaluation and recoverability evaluation were performed as follows.
The Tensilon tester (RTC-1210) manufactured by Orientec Co., Ltd. was set to the pressurization mode, and a chuck was attached to the measurement unit (load cell) for measurement. The same chuck is attached to the upper and lower sides, and the both ends of the interlabial pad (the outer part including the joint part) are clamped and measured. In this case, since the measurement is not affected as much as possible, the interlabial pad inside the joint is not sandwiched.

(Pressurization evaluation)
In pressurization evaluation, the ease of crushing of the interlabial pad is evaluated. Therefore, measurement is started in a state where the interlabial pad is sandwiched (the distance between chucks is appropriately adjusted according to the size of the interlabial pad), and the compression stress is 500 cN or more or the distance between the upper and lower chucks. When the value reaches 5 mm, the measurement is finished. The compression speed is measured at 50 mm / min.
A preferred interlabial pad has a compressive stress of less than 500 cN when the distance between chucks is 5 mm, preferably a compressive stress of less than 20 cN when the distance between the upper and lower chucks is 10 mm, more preferably 2 to 15 cN. -10 cN is particularly preferable, and does not feel uncomfortable when worn.

(Recovery evaluation)
In the recovery evaluation, the recovery after compression of the interlabial pad is evaluated. Therefore, the interlabial pad is held for 20 minutes in a compressed state where the distance between the upper and lower chucks in the recovery evaluation is 5 mm. After 20 minutes, the upper chuck is raised at a rising speed of 50 mm / min, and the distance H1 at which the compressive stress becomes 1 cN is read from the chart. Using this, the recovery ratio is calculated as follows. Recovery ratio = H1 (mm) / 5 (mm) × 100%, the recovery ratio is preferably 20% to 90%, more preferably 40 to 70%, and the absorbent article is less likely to drop off after use. If it is the said recovery ratio, since the finger insertion part (hollow part) 20 has recovered | restored partially, it is preferable also from the point which inserts a finger at the time of disposal.

  In order to wear the interlabial pad 10 described above, the index finger of the dominant hand is inserted into the finger insertion portion 20 of the interlabial pad 10, the labia is opened with the finger of the other hand, and the face sheet is mounted in the labia. After wearing, the shape of the interlabial pad 10 being worn is stabilized by the action of the connecting member 16 and also has a buffering effect against various movements of the wearer. Moreover, there is no risk of disengagement by improving fit.

As the material constituting each of the above members, those usually used in the technical field can be used as they are. That is, the materials of the top sheet 12, the back sheet 13, and the absorber 14 used for the interlabial pad 10 of the present embodiment are not particularly limited, and for example, those used for normal sanitary napkins and interlabial pads are used. .
For example, as the surface sheet 12, a hydrophilic and liquid-permeable nonwoven fabric or an apertured film can be used. As the back sheet 13, a liquid-impermeable film or the like can be used.

Examples of the material for the back sheet 13 include polyolefins, copolymers of olefins with acrylic esters, vinyl monomers such as vinyl acetate, hydrophobic thermoplastic resins such as polyesters, polyamides or polymer blends, and the like. Among these, from the viewpoint of texture and handling, a copolymer of polyolefin or olefin and another vinyl monomer, or a polymer blend-based hydrophobic thermoplastic resin is preferable, and can be used alone or as a mixture. A film obtained by molding a hydrophobic thermoplastic resin into a sheet can be used as the back sheet 13. Furthermore, it is preferable to add an inorganic filler such as TiO ₂ or talc to the hydrophobic thermoplastic resin so as to suppress the covering property and surface stickiness of the resulting film. Moreover, the film which consists of a lamination sheet formed using two or more of the said sheets can be used especially preferably as the said back surface sheet 13 in this invention.

  Although the surface sheet 12 can use the same material as the said back sheet 13, since it is what touches a wearer's skin directly, it is a soft and well-known material with the liquid permeability which does not inhibit a feeling of wear. Is used. For example, a fiber sheet, an apertured fiber sheet, an apertured foam film, a through nonwoven fabric, a point bond nonwoven fabric, a spunlace nonwoven fabric, a melt bron nonwoven fabric and the like can be used. As the fiber material, cellulose fiber, rayon, acetate, or natural cellulose fiber can be used.

Similarly to the liquid-permeable material, the absorbent body is a well-known material that is flexible because it hits the labial region or the vicinity of the labial region, for example, a pile of hydrophilic fibers such as pulp, rayon, and cotton, and a super absorbent polymer. Known materials such as those in which particles are dispersed and mixed can be used without particular limitation.
As a material example, a material using defibrated pulp as a main material and a polymer water-absorbing polymer is preferable, and a material obtained by heat-treating a mixture of a thermoplastic resin, cellulose fiber, and a polymer water-absorbing polymer is also preferable. The polymer water-absorbing polymer may be mixed with pulp, starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, cross-linked sodium carboxymethyl cellulose, acrylic acid (salt) ) Polymers are preferred.

  Further, other absorbent materials are obtained by forming a sheet of a tissue, a foam sheet subjected to hydrophilic treatment, a melt-pron nonwoven fabric subjected to hydrophilic treatment, a fiber web mainly composed of hydrophilic fibers, and a fiber web. Examples thereof include a sheet selected from nonwoven materials such as spunlace nonwoven fabric and thermal bond nonwoven fabric, a pulverized product, and an airlaid valve nonwoven fabric.

FIG. 1A is a perspective view schematically showing a shape when the interlabial pad according to the first embodiment of the present invention is used, and FIG. 1B is a cross-sectional view taken along line XX of FIG. 1A. FIG. 1C is a side view schematically showing a cross-sectional shape before and after use. FIG. 2 is a side view of the interlabial pad according to the second embodiment of the present invention. FIG. 3A is a perspective view of another embodiment in a state where the skin contact surface is the front side, and FIG. 3B is a cross-sectional view taken along line XX of FIG. 3A. FIG. 4A is a side view of still another embodiment before and after use, that is, in a state where the non-skin contact surface is on the front side, and FIG. is there.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Interlabial pad, 12 ... Top sheet (skin contact surface), 13 ... Back sheet (non-skin contact surface), 14 ... Absorber, 15 ... Pad body, 16 ... Connecting members.

Claims (6)

Comprising a top sheet, a back sheet and an absorber interposed between both sheets,
The interlabial pad is composed of two pad pieces formed into a bi-folded cross-sectional shape in which the skin contact surface of the top sheet and the non-skin contact surface of the back sheet are reversible in the center in the transverse direction,
The pad pieces are joined to each other at the center in the transverse direction along the longitudinal direction so as to be reversible, the non-skin contact surfaces of the two-folded shape are connected by a connecting member, and the skin contact surface is the front side in a state in which to folded into the finger insertion section between the connecting member and the front Kihi skin contact surface is formed, the connecting member has one end between the said transverse direction central portion of the pad piece and a free end portion Is formed of a suspension member joined to the non-skin contact surface and an elastic member supported in a suspended shape at the other end of the suspension member , and the suspension member includes the surface sheet skin contact surface and An interlabial pad having a length that allows reversal with the non-skin contact surface of the back sheet. Comprising a top sheet, a back sheet and an absorber interposed between both sheets,
The interlabial pad is composed of two pad pieces in which the skin contact surface of the top sheet and the non-skin contact surface of the back sheet are formed in a double-folded cross-section that can be turned upside down on both sides in the center in the transverse direction. ,
The pad piece, on both sides of the transverse center along the longitudinal direction are inverted freely joined together, between the clamshell-like the non-skin contact surface is connected by the connecting member, wherein the skin contact surface In the folded state with the front side, a finger insertion portion is formed between the connecting member and the non-skin contact surface,
The connecting member has a hanging member whose one end is joined to the non-skin contact surface between the central portion in the transverse direction and the free end of the pad piece, and is suspended at the other end of the hanging member. An interlabial pad comprising a supported elastic member , and the suspension member has a length that allows reversal of the top sheet skin contact surface and the back sheet non-skin contact surface. The interlabial pad according to claim 2,
The interlabial pad, wherein the skin contact surface is joined to the absorbent body at the center in the transverse direction along the longitudinal direction thereof. The interlabial pad according to any one of claims 1 to 3,
The interlabial pad, wherein the suspension member is made of a non-extensible material. The interlabial pad according to any one of claims 1 to 4,
The interlabial pad, wherein the elastic member is 50% or more of the longitudinal length of the interlabial pad. The interlabial pad according to any one of claims 1 to 5,
The interlabial pad, wherein the hanging member is fixed at substantially the center of the two non-skin contact surfaces in a folded shape.

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