JP4693109B2 - Interlabial pad - Google Patents

Description

  The present invention relates to an interlabial pad to be worn between labiums in order to prevent leakage of bodily fluids such as menstrual blood accompanying displacement of an absorbent article such as a sanitary napkin.

Women's sanitary products are widely used as absorbent articles that have an absorbent body and absorb body fluid such as menstrual blood. Since sanitary products are generally attached to underwear, shorts, etc., they move according to the movement of the wearer's clothing, and the adhesiveness with the wearer's crotch portion decreases, passing through the gap between the wearer and the sanitary product. Menstrual blood may leak.
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 deformation of the sanitary napkin such as misalignment or twist occurs during the wearer's activity, the assisting device also causes misalignment or deformation.

  Accordingly, in order to reduce the occurrence of body fluid leakage such as menstrual blood even when wearing misalignment is maintained while maintaining close contact with the wearer's crotch, an absorbent article mounting auxiliary pad is provided. An absorbent body that adheres to the wearer's inner thigh and absorbs bodily fluids, an absorbent sheet body composed of a cover sheet that covers the absorbent body, and an adhesive for attachment to a sanitary napkin were applied to the opposite side of the body By configuring the absorbent sheet body and the connected stem body connecting the absorbent body and the joining sheet body, and attaching this to a sanitary napkin, the connected stem body is interposed even if the sanitary napkin moves while wearing, There has been proposed a structure in which an absorbent sheet body can always be in close contact with the inner crotch of a wearer (see Patent Document 1).

  In addition, the auxiliary pad is bent so as to protrude toward the body, and in this state, the auxiliary pad is directly attached to the sanitary napkin with an adhesive. In order to facilitate positioning of the attachment position of the auxiliary pad relative to the sanitary napkin A guide groove (squeezing groove) is formed on the body side of the napkin for use, and an auxiliary pad is attached using the compressed groove as a guide, and an adhesive is applied to the skin contact surface of the auxiliary pad, and the auxiliary pad is applied to the wearer's buttocks There is also known one in which these are closely attached (see Patent Document 2).

Furthermore, an interlabial pad in which a pad is directly attached between the labia is also known (see Patent Document 3).
This interlabial pad is provided with a mini-sheet piece for forming a finger insertion mouth on the opposite body (non-skin contact surface) side, the finger is inserted through the finger insertion mouth, While opening the labium, it is worn at an appropriate position within the labium. Further, when taking out after use, by inserting and removing the finger from the finger insertion port, it is possible to replace the interlabial pad without soiling the finger.

  As yet another example, in the interlabial absorbent article described in Patent Document 4, a retaining flap for inserting a finger is provided on the interlabial pad, and a finger is inserted into the holding flap. Thus, the pad can be put on and taken off between the labia.

  However, since the structure described in Patent Document 1 is a structure in which the auxiliary pad and the napkin are connected by a connecting stem, a special member for connection is required, and the structure is complicated. Costs are also incurred. Furthermore, in this structure, the connection stem body cannot maintain adhesion to the body unless it has a function of supporting the auxiliary pad. However, in such a structure, a sense of incongruity occurs. In addition, the structure described in Patent Document 2 is simpler in structure than the auxiliary pad disclosed in Patent Document 1, but the auxiliary pad is directly bonded to the crotch. Not limited to this, if the bonding force is strengthened, it may be difficult to remove after use. Further, the interlabial pad (interlabial absorbent article) described in Patent Documents 3 and 4 may not be able to absorb when there is a lot of menstrual blood and may leak. In such a case, even if a sanitary napkin is used in combination, there is no means for joining with the sanitary napkin, and the interlabial region is a site where stress for attaching the sanitary napkin is difficult to reach, There is a risk that a gap will be formed between the napkin and menstrual blood or the like may leak from the gap, and there will be inconveniences such as the pad falling to the floor when the interlabial pad is replaced.

JP 2003-38560 A JP 2003-38564 A WO2002 / 094146 WO2004 / 060247

  The present invention has been made in view of the problems of the conventional auxiliary pad or interlabial pad described above. The purpose of the present invention is to wear the interlabial pad between the labia and absorb body fluid such as menstrual blood. It can be used with a combination pad such as a sanitary napkin when there is a lot of menstrual blood or when it cannot be replaced for a long time. And make it harder to leak.

The invention of claim 1 is an interlabial pad to be mounted between the labia, a liquid-permeable top sheet, a back sheet made of a liquid-impermeable film, and a bottom surface disposed between the two sheets have a substantially triangular cross-section with a convex shape toward the upper flat, the pad body of the absorber is a foamed sheet having a hydrophilic treatment, extending laterally from opposite side edges of the pad body And the wing is formed of a back sheet disposed along the lower surface of the absorber, and an adhesive layer is formed on the non-skin contact surface side, and the non-skin of the back sheet A finger insertion opening is formed on the abutting surface side, and the finger insertion opening is formed between another sheet bonded to the back sheet.
According to a second aspect of the present invention, in the interlabial pad according to the first aspect, the wing member is thermally bonded to a top sheet.
In addition, sanitary products worn between the labia for the purpose of absorbing menstrual blood and other body fluids are collectively referred to as an interlabial pad.

(Function)
The interlabial pad according to the present invention inserts the finger of a dominant hand into a finger insertion opening provided on the non-skin contact surface side (opposite to the body side), opens the labia with the finger of the other hand, and wears the pad . At that time, the flap extending to the side of the pad covers the hand holding the pad and protects the crotch from being soiled.
In addition, the interlabial pad is integrally bonded to a combination pad such as a shorts or a menstrual napkin by an adhesive layer provided on the wing, and thus can be removed together with the shorts or the combination pad after use. Just don't fall.
Furthermore, when the used interlabial pad is removed from shorts or the like, it can be easily removed by inserting a finger into the finger insertion opening . At that time, since the finger insertion section is isolated from the absorber with the liquid impermeable sheet, it is never soiled fingers.

According to the present invention, since there are wings (flaps), hands are not soiled when worn on the labia, and shorts and the like are not soiled during use.
In addition, after use, it can be removed together with the shorts or combination pad bonded to the wing and there is no risk of falling, and after removing it, the finger can be inserted into the interlabial pad and easily removed from the shorts or combination pad. Can do.
In addition, wearing is not only easy because the finger can be inserted into the interlabial pad, but it is hygienic because it does not touch the labial portion directly, and the hands are not soiled. Moreover, since finger insertion is easy, it is not necessary to touch the dirty surface part and it is easy to handle.

One embodiment of the interlabial pad of the present invention will be described with reference to the drawings.
FIG. 1A is a perspective view of the interlabial pad according to the first embodiment of the present invention as viewed from the body wearing side, and FIG. 1B is a plan view of the interlabial pad 10 as viewed from the non-skin contact surface side. 1C is a cross-sectional view taken along a line XX crossing a substantially central portion in the longitudinal direction of the interlabial pad shown in FIG. 1A.
As shown in FIGS. 1A and 1C, the interlabial pad 10 according to the first embodiment includes a liquid-permeable surface sheet 12 on the body side and a liquid-impermeable back sheet on the non-skin contact surface side. 13 and an absorbent body 14 sandwiched between both sheets, and a known thermal joining means such as a heat seal or a high-frequency seal for the sheets 12 and 13 with the absorbent body 14 sandwiched between them. The absorber 14 is sealed by bonding. The lower of the backsheet 13, and further place another Win grayed-shaped formation sheet 16, top sheet 12 which seals the pad body 15 and two-folded so as to be convex upward, as shown And the liquid-impermeable wing forming sheet 16 for wing formation is thermally bonded with a predetermined interval between both ends of the back sheet 13.

By thermally bonding the wing forming sheet 16 to the top sheet 12 and the back sheet 13 as described above, a finger insertion opening having a substantially triangular cross section is provided between the back sheet 13 and the wing forming sheet 16 of the pad main body 15. (Or finger insertion space) 20 is formed.
As shown in FIGS. 1A and 1C, the wing forming sheet 16 extends a predetermined length in the lateral direction from the side edge of the pad body 15 to form a wing W. In this wing W, on the lower side of the wing W in FIG. 1C, that is, on the non-skin contact surface side, for example, a substantially rectangular adhesive layer 18 for joining the interlabial pad 10 to shorts or combination pads not shown. Are provided at symmetrical positions.

  The wing W is formed of a wing forming sheet 16 in this embodiment, and the top sheet 12 and the back sheet 13 are thermally bonded to the sheet 16 by heat sealing or the like. The wing W may be formed by integrally joining the forming sheet 16.

2A is a perspective view of the interlabial pad according to the second embodiment of the present invention as seen from the body wearing side, and FIG. 2B is a plan view of the interlabial pad 10 as seen from the non-skin contact surface side. .
In the first embodiment, the interlabial pad 10 according to the second embodiment and the interlabial pad 10 according to the first embodiment have their wings W arranged along the longitudinal direction of the absorbent body 14 along the side edges thereof. Whereas the second embodiment is different from the second embodiment in that it is extended to a predetermined width only at its substantially central portion, the cross-sectional shape is different from that of the second embodiment. The other configurations including the same are the same.

In this embodiment, the wing forming sheet 16 may be a strip having the same width as the width of the wing W, or may be formed to have the same length as the longitudinal length of the pad body 15 and only the wing W portion is thinned. You may form in width.
The shapes of the pad main body 15 and the wing W are not limited to those in the above embodiments, and the pad main body 15 is circular, elliptical, rectangular, or one in which the width of only one is increased, and the configuration is limited to one. not good even also by bonding the two left and right of the pad body etc. the wing W may for example, be a semi-circular other shapes.

FIG. 3 shows a third embodiment of the interlabial pad 10.
This interlabial pad 10 is a pad comprising a liquid-permeable top sheet 12 on the body side, a liquid-impermeable back sheet 13 on the non-skin contact surface side, and an absorber 14 included between both sheets. Although the main body 15 is provided, the absorber 14 has a substantially triangular cross section with a flat bottom surface and a convex shape upward as shown in the figure, and the back sheet 13 extends along the bottom surface of the absorber 14. Has been placed. The back sheet 13 further extends in the lateral direction from both side edges thereof, and forms a wing W in a state of being joined to the top sheet 12.

An adhesive layer 18 similar to that shown in FIG. 1B is symmetrically provided on the lower side of the wing W, that is, on the non-skin contact surface side in order to bond the interlabial pad 10 to a shorts or combination pad not shown. cage, the more non-skin facing side of the backsheet 13, another sheet 17 to constitute a finger interpolation join the club (insertion opening) 20 is attached between the backsheet 13. Further, the wing W may have any shape shown in FIGS. 1B and 2B.

  Here, the shape of the absorbent body 14, and hence the pad main body 15, is not particularly limited here, and any of rectangular, circular, elliptical and the like can be adopted. However, as shown in FIG. By making the part into a substantially triangular shape with a thicker raised part than the end part, an interlabial pad having a large absorption capacity and an excellent wearing feeling can be obtained.

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. It is held by the frictional force and the closing force of the labia.
When wearing, the wing W of the interlabial pad 10 covers fingers other than the finger inserted into the insertion portion 20, so that it is possible to prevent the fingers from becoming dirty due to menstrual blood.

  Here, the back sheet 13 is a liquid permeable sheet similar to the top sheet, or a liquid impervious sheet is provided with a plurality of liquid passage holes, and the back sheet 13 of the interlabial pad 10 is not illustrated, for example. Body fluid such as menstrual blood absorbed by the absorbent body 14 of the interlabial pad 10 can be absorbed by bonding the wing W to the shorts with the adhesive layer 18 in contact with the sanitary napkin.

In particular, when menstrual blood is high, menstrual blood may exceed the absorption capacity of the absorbent body 14 of the interlabial pad 10 and leak from the interlabial pad 10. The napkin can absorb menstrual blood, so there is no risk of leaking outside.
Further, since the wing W extends to the side of the absorbent body 14 of the interlabial pad 10, the shorts and the sanitary napkin can be protected from dirt.

  After use, it can be removed together with a combined pad such as shorts or sanitary napkin joined together, so that the dirty interlabial pad 10 can be safely replaced without being accidentally dropped during handling. . Also, in the case where the body fluid such as menstrual blood is made impermeable on the back sheet 13, the shorts are lowered, and then the finger is inserted again into the finger insertion portion and the pad 10 is lifted up. It can be easily peeled off and discarded for disposal.

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.
As the surface sheet 12, for example, a hydrophilic and liquid-permeable nonwoven fabric or an apertured film can be used. Further, a liquid-impermeable film or the like can be used as the back sheet 13.

That is, as the material of the back sheet 13 and the wing W, hydrophobic thermoplastic resins such as polyolefin, copolymers of olefins and other vinyl monomers such as acrylic acid esters and vinyl acetate, polyesters, polyamides or polymer blends 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 it can be used alone or as a mixture. it can. Moreover, the film obtained by shape | molding a hydrophobic thermoplastic resin and making it a sheet | seat etc. can be used as the back surface sheet 13 and the wing W. FIG. 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 the said 2 or more sheet | seat can be used especially preferably as the said back surface sheet 13 and the wing W in this invention.

Front surface sheet 12, Ru can be the same as the material of the back sheet 13 and wings W, but since directly those in contact with the skin of the wearer, the liquid-permeable does not inhibit the flexible Wearing Some known materials are used. For example, a fiber sheet, an apertured fiber sheet, an apertured foam film, a through-air 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. Note that when used in combination interlabial pad such as a sanitary napkin and has a back sheet 13 may use a liquid-permeable sheet like the front surface sheet.

Similarly to the liquid-permeable material, the absorbent body 14 is a well-known material that is flexible because it hits the labial region or the vicinity of the labial region, for example, a fiber-filled body of hydrophilic fibers such as pulp, rayon, and cotton, and a superabsorbent polymer. Any known particles such as those obtained by dispersing and mixing these particles 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, as other materials of the absorbent body 14 , a tissue, a foamed sheet subjected to a hydrophilic treatment, a melt-pron nonwoven fabric subjected to a hydrophilic treatment, a fiber web mainly composed of hydrophilic fibers, and a fiber web are obtained. Examples thereof include a sheet selected from nonwoven materials such as spunlace nonwoven fabric and thermal bond nonwoven fabric, a pulverized material, and an air-laid valve nonwoven fabric.

  The pressure-sensitive adhesive for the pressure-sensitive adhesive layer 18 is preferably selected from hot melts mainly composed of synthetic rubber such as SBS (styrene-butadiene-styrene block copolymer) and SIS (styrene-isoprene-styrene block copolymer). Such an adhesive may have a pattern such as a planar shape, a streak shape, a dot shape, or a spiral shape.

1A is a perspective view of the interlabial pad according to the first embodiment of the present invention as seen from the body wearing side , FIG. 1B is a plan view as seen from the opposite body mounting side, and FIG. 1C is along the line XX in FIG. FIG. FIG. 2A is a perspective view of the interlabial pad according to the second embodiment of the present invention as seen from the body wearing side , and FIG. 2B is a plan view as seen from the opposite body attachment side. It is sectional drawing similar to FIG. 1C which shows the cross-section concerning the 3rd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Interlabial pad, 12 ... Top sheet, 13 ... Back sheet, 14 ... Absorber, 15 ... Pad body, 16 ... Sheet for wing formation, 18 ... Adhesion Layer, W ... Wing.

Claims (2)

An interlabial pad that is worn between the labia,
It possesses a liquid permeable topsheet, a backsheet consisting of a liquid impermeable film, the cross section of the substantially triangular both arranged lower surface between the sheet with a convex shape toward the upper flat, hydrophilic A pad body composed of an absorbent body which is a foamed sheet subjected to sexual treatment , and wings extending laterally from both side edges of the pad body,
The wing is formed of a back sheet disposed along the lower surface of the absorber, and an adhesive layer is formed on the non-skin contact surface side,
The interlabial pad, wherein a finger insertion opening is formed on the non-skin contact surface side of the back sheet, and the finger insertion opening is formed between the back sheet and another sheet joined to the back sheet. The interlabial pad according to claim 1,
The interlabial pad, wherein the wing member is thermally bonded to a top sheet.

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