JP2007097958A - Interlabial pad and package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent mutual sticking of fixing layers of an interlabial pad to be put between the labia and a pad used in combination. <P>SOLUTION: Opposite to the body side of a pad body 15 to be put between the labia, the fixing layer 17 composed of an adhesive of weak adhesive force or a hook of a mechanical fastener is formed. When individually packing the interlabial pad 10, the fixing layer 17 of the pad body 15 is turned to the inner side and folded into two. In this case, even if the fixing layer 17 is formed of the adhesive, a release sheet is not needed, since the peel force is weak. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an interlabial pad that is worn between the labia and absorbs bodily fluids such as menstrual blood, and an interlabial pad package that includes the interlabial pad.

  There are so-called sanitary napkins and tampons as female sanitary napkins. A sanitary napkin is attached to shorts, for example, and applied to the vaginal opening to absorb menstrual blood.However, when there is a gap between the movement of the body and the movement of the underwear or when the underwear is heavily loaded, The sanitary napkin may be displaced from the vaginal opening, or a gap may be formed between the body and the sanitary napkin, causing menstrual blood to leak.

In addition, the tampon is not easy to handle because there is a sense of incongruity regarding insertion at the time of wearing, and it is necessary to get used to wearing.
Therefore, an auxiliary tool is used for a sanitary napkin to improve adhesion to the body and prevent menstrual blood leakage.
Since these assisting devices are fixed to the sanitary napkin and used, when the sanitary napkin is deformed such as misalignment or twisting according to the wearer's activity, the assisting device is also misaligned together. Or cause deformation.

Therefore, for example, in a pad that uses a combination of an auxiliary pad that closely contacts the labia and a sanitary napkin, the auxiliary pad is attached to the sanitary napkin with an adhesive provided on the non-body side (non-skin contact surface side) of the auxiliary pad. At the same time, it has been proposed that an adhesive for application to the skin is applied to the side of the body of the auxiliary pad so that there is no gap between the auxiliary pad and the body due to a sudden change in the posture of the wearer. (See Patent Document 1)
However, in the case of using an adhesive to join a sanitary napkin or a body like the auxiliary pad described in Patent Document 1, there is a problem that the adhesives are easily adhered to each other and are therefore difficult to handle.
JP 2003-38564 A

  The present invention has been made in view of the problems of conventional sanitary napkins with auxiliary pads and interlabial pads, and the purpose of the present invention is to be used in combination with interlabial pads and combined pads such as sanitary napkins. However, it is to prevent the fixing layers for the bonding from sticking to each other and becoming difficult to peel off.

The invention of claim 1 is a pad to be worn between the labia, wherein a fixing layer is formed on the back surface of the pad, and the peeling force of the fixing layer is 5 to 50 cN / 25 mm. .
The invention according to claim 4 is a package including the interlabial pad, wherein the interlabial pad according to any one of claims 1 to 3 is stored in a state where the fixing layer is folded inward. It is characterized by that.
In addition, sanitary goods worn between the labia for the purpose of absorbing menstrual blood and other body fluids are collectively referred to as an interlabial pad.

(Function)
In the interlabial pad according to the present invention, the dominant finger is inserted into a finger insertion portion provided on the non-skin contact surface side (opposite to the body side), the labia is opened with the finger of the other hand, and the pad is mounted. Further, the interlabial pad is adhered to a combination pad such as a sanitary napkin by a fixing layer around the fluid passage hole, and menstrual blood is guided to the combination pad through the fluid passage hole. The interlabial pad can be removed together with the combination pad after use.

According to the present invention, since the interlabial pad is mounted between the labia, there is no risk that the pad being mounted will be displaced and menstrual blood etc. may leak, and the fixed layer can be fixed to a combination pad such as a sanitary napkin and used. After that, it can be removed together with a sanitary napkin or the like so that it cannot be accidentally dropped or dirty. Moreover, since the peeling force of the fixing layer is lowered, even if the fixing layers come into contact with each other, sticking does not occur and it is easy to handle.
In addition, the interlabial pad is folded in half so that the fixed layer faces each other and accommodated in the package, so that it is not necessary to cover the fixed layer with a release sheet as in the prior art, and it is easy to manufacture and reduces the manufacturing cost. Can be reduced.

The present invention will be described according to embodiments shown in 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 this embodiment includes a liquid-permeable surface sheet 12 on the body side, and a liquid-impermeable side opposite to the wearing side, that is, the non-skin contact surface side. The sheet 12 and 13 are joined by a known joining means such as heat seal or high frequency seal with the absorber 14 interposed therebetween. Thus, the absorbent body 14 is sealed to form the pad main body 15.

  In the interlabial pad 10, another lower surface sheet 16 is similarly bonded to the lower side of the back sheet 13 by a well-known bonding means, and folded in half so that the surface sheet 12 side that is the body side is convex as shown in the figure. Then, the liquid-impermeable lower surface sheet 16 is bonded by a known bonding means with a predetermined gap between both ends of the top sheet 12 and the back sheet 13 sealed by the pad main body 15.

  By joining the bottom sheet 16, the top sheet 12, and the back sheet 13 as described above, a finger insertion port and a space 20 having a substantially triangular cross section are formed between the back sheet 13 and the bottom sheet 16 of the pad main body 15. It is formed.

As shown in FIG. 1B, the interlabial pad 10 is provided with a plurality of liquid passage holes 22 at appropriate intervals in the lower surface sheet 16 on the non-skin contact surface side. The same liquid passage hole is also provided in the back sheet 13 constituting the pad main body 15.
Reference numeral 17 denotes a fixing layer provided on the lower surface sheet 16 of the interlabial pad 10, and the adhesive of the pad main body 15 so that the adhesive surrounds the liquid passage hole 22 so that the peeling force thereof is 5 to 50 cN / 25 mm. It is provided continuously along the edge of the back surface, so that it is directly joined to an absorbent body of a combination pad such as a sanitary napkin (not shown). If the peel force is less than 5 cN / 25 mm, the bonding force is weak, and if it exceeds 50 cN / 25 mm, the fixed layers can be easily joined together. This is because sometimes it becomes difficult to separate.

  The peel strength of the fixed layer used here is sampled so that the adhesive part has a width of 25 mm and a length of 30 mm, and the fixed layers are unified with a white cloth cotton kanakin No. 3 for testing of the Japanese Standards Association and a 2 kg roller. Measured using a tensile tester (Orientec RTC-1210A Co., Ltd.) capable of peeling at a speed of 300 mm / min within 30 s after reciprocating and bonding, and the maximum average peel force was taken as the peel force. .

For example, menstrual blood that has flowed out of the absorbent body 14 of the interlabial pad 10 through the liquid passage hole 22 is absorbed by the absorbent body of the combined pad by providing the fixing layer 17 made of a continuous adhesive on the lower surface of the pad body 15. However, even if there is a large amount of menstrual blood flowing out, menstrual blood overflowing on the absorbent body of the combination pad may leak because the lower surface sheet 16 and the absorbent body of the combined pad are intimately bonded. There is no.
The fixing layer 17 is not limited to an adhesive, and may be a male fastener of a mechanical fastener that engages with a nonwoven fabric of a combination pad such as a sanitary napkin, that is, a hook. The interlabial pad 10 is bonded to a combination pad or the like after being attached to the body. However, if the bonding force is strong, there is a possibility that the wearing will be stuck to an unnecessary portion and the peeling force is preferably close to zero. In that respect, the fixing layer 17 in the present embodiment has a peeling force limited to 5 cN / 25 mm or more and 50 cN / 25 mm or less when an adhesive is used, and when a mechanical fastener is used, the hooks are Since it is not bonded, no peeling force is required, and in any case, the fixing layers 17 are not stuck to each other and handling is easy.

FIG. 2 is a plan view showing the non-skin contact surface side of the interlabial pad 10 according to the second embodiment.
In this embodiment, as shown in the drawing, an adhesive is provided on the entire lower surface sheet except for the portion of the liquid passage hole 22. By providing the fixing layer 17 in this way, the interlabial pad 10 and the combination pad are combined, so that leakage of menstrual blood or the like from the absorbent body of the lower surface sheet 16 and the combination pad can be prevented.
Even if the adhesive application area is increased in this way, the peel force is limited to 5 to 50 cN / 25 mm, so sticking does not occur at the time of mounting, and handling is easy.

FIG. 3 shows a third embodiment of the interlabial pad 10.
The interlabial pad 10 includes a liquid-permeable top sheet 12 on the body side, a liquid-impermeable back sheet 13 on the side opposite to the body side, that is, the non-skin contact surface side, and an absorption contained between both sheets. A pad main body 15 comprising a body 14 is provided, but the absorber 14 is flat as shown in the drawing and has a convex shape upward, and a back sheet 13 is disposed along the bottom surface of the absorber 14. In addition, as shown in FIG. 2, a fixed layer 17 is formed on the entire surface of the back sheet 13 excluding the liquid passage holes 22.

In this embodiment, since the capacity of the absorber 14 is large, more menstrual blood or the like can be absorbed, and by providing the fixing layer 17 directly on the back sheet 13, menstrual blood or the like is not illustrated from the absorber 14. Directly led to the absorbent body of the combined pad. Since this configuration does not use a separate bottom sheet, the configuration is simple, but there is no opening for inserting a finger when worn.
Also in this interlabial pad 10, as shown in FIG. 1B, the fixed layer 17 may be formed so as to surround the plurality of liquid passage holes 22 and the holes.

FIG. 4A is a plan view of an interlabial pad according to a fourth embodiment of the present invention as seen from the non-skin contact surface side. 4B is a sectional view thereof.
As shown in FIG. 4A and FIG. 4B, the interlabial pad 10 according to the fourth embodiment has a liquid-permeable surface sheet 12 on the body side in the same manner as the interlabial pad according to the first embodiment. It has a pad main body 15 composed of a liquid-impermeable back sheet 13 on the side opposite to the mounting side, that is, the non-skin contact surface side, and an absorbent body 14 accommodated between both sheets. The absorbent body 14 is sealed by joining both the sheets 12 and 13 by a known joining means such as heat sealing or high frequency sealing. The pad main body 15 is folded in half as shown in the figure, and a liquid-impermeable lower surface sheet 16 is joined between both ends thereof.

  By joining the bottom sheet 16, the top sheet 12, and the back sheet 13 as described above, a finger insertion opening 20 having a substantially triangular cross section is formed between the back sheet 13 and the bottom sheet 16 of the pad main body 15. Has been.

  Further, as shown in FIGS. 4A and 4B, the lower surface sheet 16 extends in a lateral direction from the side edge of the pad main body 15 to form a wing W. On the lower side of the wing W, that is, on the non-skin contact surface side, another fixing layer 18 for joining the interlabial pad 10 to a sheet of a combination pad such as a sanitary napkin (not shown) is provided at a symmetrical position. ing.

  In this embodiment, the wing W is formed of a lower surface sheet 16 and the top sheet 12 and the back sheet 13 are joined to the sheet 16. The top sheet 12, the back sheet 13, and the wing forming sheet 16 are joined together. Thus, the wing W may be formed.

  In addition, the width of the wing W described above may be extended with a predetermined width only in a substantially central portion in the longitudinal direction of the side edge portion of the pad body 15, and in that case, the wing forming sheet is The width may be the same as that of the pad main body 15 or the length of the pad main body 15 in the longitudinal direction, and only the portion of the wing W may be formed narrow.

  In addition, the shape of the absorbent member and therefore the absorbent body is not limited to the above embodiment, and the absorbent body may be an ellipse, a rectangle, or a width of only one of them if it is substantially vertically long. The pad main body 15 can use other well-known types, for example, a type in which an absorbent body is wrapped with a cover sheet made of a liquid-permeable material. Furthermore, the wing W may also be, for example, a semicircular shape.

FIG. 5 is a cross-sectional view showing a state where individual interlabial pads are individually packaged.
As shown in the figure, the interlabial pad 10 is folded in half with the body side facing up and is individually packaged in an individual bag 30 as a package. Since the interlabial pad 10 is folded in this way, the fixing layer 17 is folded inward so as to face each other and is not exposed. Therefore, the fixing layer 17 is formed of an adhesive. There is no need to separately coat with a release sheet or the like.
In this case, even if the adhesives of the fixing layer 17 are bonded to each other, the peeling force is set low, so that they can be easily separated during use.

In the above embodiment, the fixing layer is formed by applying an adhesive, but a hook of a mechanical fastener may be provided instead of the adhesive. In this case, the hook is lightly pressed against a combination pad such as a sanitary napkin, so that the nonwoven fabric fiber is entangled and joined. When hooks are used in this way, even if the interlabial pad is folded in the package (individual packaging), the hooks are not joined to each other and can be easily deployed when worn.
Moreover, since there is no stickiness like an adhesive, there is an advantage that it is easy to handle.

In order to wear the interlabial pad 10 described above, when the interlabial pad 10 has the finger layer insertion portion 20, the index finger of the dominant hand is inserted into the finger insertion portion 20, and the labia is opened with the finger of the other hand. Put a face sheet between the labia.
When the interlabial pad 10 is provided with a wing W when worn, it covers the fingers other than the finger inserted into the insertion portion 20, so that the finger can be prevented from being stained by menstrual blood and the wing is used as a sanitary napkin Prevent dirt such as.
With the interlabial pad 10 attached to the body, a sanitary napkin (not shown) is brought into contact with the pad 10, and a fixing layer provided on the non-skin contact surface side of the wing W of the pad 10 is joined to the sanitary napkin. Integrate. In this case, since the adhesive strength of the fixing layer is set to be small as described above, the interlabial pad of this embodiment is easy to handle and convenient because there is no possibility that the fixing layers stick to each other during the mounting.

  Further, when there is a lot of menstrual blood or the like, it may leak from the pad 10 exceeding the absorption capacity of the absorbent body 14 of the interlabial pad 10, but the menstrual blood leaked can be absorbed by the sanitary napkin joined integrally. There is no risk of leaking outside.

  After use, it can be removed with the sanitary napkin joined together, so that the dirty interlabial pad 10 can be replaced safely without being accidentally dropped.

  As a modification of the interlabial pad 10 according to each of the above embodiments, the lower surface sheet is made of a liquid-permeable sheet, and an adhesive non-coating area is provided at a plurality of locations on the lower surface sheet, and the area is surrounded. The adhesive may be applied to the entire bottom sheet.

As the material constituting each of the above members, materials 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 of the back sheet 13 and the wing W include polyolefins, copolymers of olefins and other vinyl monomers such as acrylic acid esters and vinyl acetate, and hydrophobic thermoplastic resins such as polyesters, polyamides or polymer blends. Among these, from the viewpoint of texture and handling, a polyolefin or a copolymer of an olefin and another vinyl monomer, or a polymer blend-based hydrophobic thermoplastic resin is preferable, and can be used alone or as a mixture. And the film obtained by shape | molding a hydrophobic thermoplastic resin into a sheet | seat etc. can be used as the back surface sheet 13 and the wing W. FIG. Furthermore, the said hydrophobic thermoplastic resin, internally added inorganic filler such as TiO ₂ or talc, preferably suppress the stickiness covering properties and the surface 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.

  Although the surface sheet 12 can use the same material as that of the back sheet 13 and the wing W, it is in direct contact with the wearer's skin and is flexible and has liquid permeability that does not impair the feeling of wear. Well-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.

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.

  The “adhesive” applied to the non-body side of the bonded sheet is mainly made of synthetic rubber such as SBS (styrene-butadiene-styrene block copolymer) and SIS (styrene-isoprene-styrene block copolymer). It is desirable to select from hot melts. Such an adhesive is applied over almost the entire surface of the non-body side surface in a pattern such as a surface 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, FIG. 1B is a plan view seen from the side opposite to the body attachment side, and FIG. 1C is a cross-sectional view taken along line XX in FIG. . FIG. 2A is a perspective view of an interlabial pad according to a second embodiment of the present invention, and FIG. 1B is a plan view seen from the side opposite to the body attachment side. It is sectional drawing similar to FIG. 1C which shows the cross-sectional structure of the interlabial pad which concerns on 3rd Embodiment. FIG. 4A is a cross-sectional view similar to FIG. 1C showing the cross-sectional structure of the interlabial pad according to the fourth embodiment, and FIG. 4B is a plan view seen from the side opposite to the body attachment side. It is sectional drawing which shows the individual packaging state of the interlabial pad.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Interlabial pad, 12 ... Top sheet, 13 ... Back sheet, 14 ... Ball member, 16 ... Bottom sheet, 17 ... Fixed layer 18 ... Fixed layer, 20 ... finger insertion part, 30 ... individual packaging, W ... wing.

Claims (4)

  An interlabial pad, which is mounted between labiums, has a fixing layer on the back surface of the pad, and the peeling force of the fixing layer is 5 to 50 cN / 25 mm. The interlabial pad according to claim 1,
The interlabial pad, wherein the fixing layer is an adhesive layer.   An interlabial pad, which is mounted between the labia and has a fixing layer made of a hook of a mechanical fastener on the back surface of the pad. A package containing the interlabial pad according to any one of claims 1 to 3,
The interlabial pad package comprising the interlabial pad folded in half so that the fixed layers face each other, and stored in a packaging sheet.

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