JP2007097960A - Inter-labial pad - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent diffusion and leakage on a pad used in combination by closely joining a labial pad with liquid passing holes and the pad used in combination and leading body liquid such as menstrual blood to the pad used in combination. <P>SOLUTION: The labial pad is provided with an absorbent main body 15 and a lower surface sheet 16 attached to the non skin abutting surface side of the absorbent main body 15. The absorbent main body 15 is composed of a front surface sheet 12, a back surface sheet 13 and an absorbent 14 arranged between both sheets. On the back surface sheet 13 and the lower surface sheet 16, the plurality of liquid passing holes for making the body liquid such as the menstrual blood absorbed by the absorbent 14 pass through are provided. An adhesive material 17 is provided so as to surround the plurality of liquid passing holes 22 on the lower surface sheet, and the absorbent main body 15 and the absorbent of the pad used in combination are joined with the adhesive material 17. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an interlabial pad that is 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 absorbent bodies and absorb bodily fluids such as menstrual blood. However, sanitary products are generally attached to underwear or shorts, so they move according to the movement of the wearer's clothing. The adhesion between the wearer's crotch portion may be reduced, and menstrual blood may leak through the gap between the wearer and the sanitary product.
Therefore, it has been attempted to improve the close contact with the body by using an auxiliary tool on the sanitary napkin and prevent leakage of blood from the diameter, but these auxiliary tools are fixed to the sanitary napkin. Therefore, when the sanitary napkin undergoes deformation such as misalignment or twist during the wearer's activity, the assisting device also causes misalignment or deformation.

  Therefore, in order to be able to reduce the occurrence of body fluid leakage such as menstrual blood even when wearing misalignment, while maintaining the adhesion with the wearer's crotch, an auxiliary pad for attaching absorbent articles, An absorbent body that is placed in close contact with the wearer's crotch to absorb bodily fluids, an absorbent sheet body comprising a cover sheet covering the absorbent body, and an adhesive for attaching to the sanitary napkin is opposite to the body side It is composed of an absorbent sheet body applied to the body and a connected stem body that connects the absorbent body and the joining sheet body, and is attached to a sanitary napkin, and the connected stem body is interposed even if the sanitary napkin moves during wearing. Therefore, there has been proposed a structure in which the absorbent sheet body can always be in close contact with the inner thigh of the wearer (see Patent Document 1).

  In addition, the auxiliary pad is bent so as to be convex toward the body so as to be in close contact with the labia, and in this state is directly attached to the sanitary napkin with an adhesive, and the positioning of the mounting position of the auxiliary pad with respect to the sanitary napkin is determined. In order to facilitate, a guide groove (squeezing groove) is formed on the body side of the sanitary napkin, an auxiliary pad is attached using this compressed groove as a guide, and an adhesive is applied to the skin contact surface of the auxiliary pad, There is also known one in which an auxiliary pad is brought into close contact with the wearer's buttocks (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 comprises a mini-sheet piece for forming a finger insertion mouth and a finger insertion space on the non-body side (non-skin contact side) surface, and inserts a finger into the finger insertion mouth, While opening the labium with the finger of the other hand, attach it to the appropriate position in the labium and replace it between the labial pads without smearing the finger by inserting and removing the finger into the finger insertion port when removing it after use Etc. are possible.

  As 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 the finger is inserted into the retaining flap. The pad can be attached / detached between the labia, and apertures are provided in the back sheet so that the body fluid absorbed by the interlabial absorber can flow down to the lower absorber through the hole. I have to.

  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, if the connection stem does not have a function of supporting the auxiliary pad, it cannot maintain the close contact with the body, but such a structure causes a sense of incongruity. 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 connected to the crotch. Therefore, if the adhesiveness is strengthened, it may be difficult to remove after use. Further, in the interlabial pad (interlabial absorbent article) described in Patent Documents 3 and 4, there is a risk that it cannot be absorbed when there is a lot of menstrual blood and leaks. However, since there is no means for joining with the sanitary napkin, and the interlabial area is difficult to receive stress for close contact with the sanitary, there is a gap between the napkin and the There is a risk that blood or the like may leak, and 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, for example, between menstrual pads and menstrual pads that are interlabial pads and combination pads. In addition, it is possible to remove it from the combination pad previously attached to the shorts without touching it directly after use.

The invention of claim 1 is an interlabial pad comprising a top sheet, a back sheet, and an absorber disposed between both sheets, the back sheet comprising a plurality of liquid passage holes, and the plurality of through holes. It has an adhesive layer arranged so as to surround the liquid hole.
The invention of claim 2 comprises a top sheet, a back sheet provided with a plurality of liquid passage holes in a liquid-impermeable sheet or made of a liquid-permeable sheet, and an absorber disposed between both sheets. An interlabial pad having a pad main body and a lower surface sheet bonded to the non-skin contact surface side of the pad main body, the lower surface sheet being disposed so as to surround the plurality of liquid passage holes and the plurality of liquid passage holes It is characterized by having an adhesive layer.
The invention of claim 5 is an interlabial pad comprising a top sheet and a back sheet, both of which are liquid permeable, and an absorber disposed between both sheets, and an adhesive layer is formed on the back sheet. The back sheet is characterized in that a plurality of adhesive non-coated portions for liquid passage are formed.
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)
The interlabial pad according to the present invention has a hand or a finger inserted into a finger insertion portion provided on the non-skin contact surface side (opposite to the body side), and opens the labia with the finger of the other hand. Alternatively, the pad is put on.
The interlabial pad is bonded to a combination pad such as a sanitary napkin with an adhesive around the fluid passage hole, and menstrual blood is guided to the combination pad through the perforation hole, and from between the interlabial pad and the combination pad. Prevent liquid leakage. Furthermore, remove it together with the combination pad after use.

  According to the present invention, body fluid such as menstrual blood from the interlabial pad to the combination pad is reliably guided to the combination pad through the liquid passage hole, so that the liquid spreading of the combination pad is suppressed and there is no risk of leakage. Moreover, after use, when the shorts to which the combination pad is attached are lowered, they do not fall together or accidentally drop their hands.

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 seen from the body wearing side, and FIG. 1B is a plan view of the interlabial pad 10 as seen 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, and FIG. 1D is a substantially central portion in the longitudinal direction of the interlabial pad in a worn state. It is sectional drawing cut | disconnected by the line XX which crosses.
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 on the side opposite to the wearing side, that is, the non-skin contact surface side. It has a pad main body 15 composed of an impermeable back sheet 13 and an absorbent body 14 accommodated between both sheets, and the peripheral portions of both sheets 12 and 13 with the absorbent body 14 interposed, for example, heat sealing, As shown in the figure, the absorbent body 14 is sealed by bonding with a known heat bonding means such as a high frequency seal, and another lower surface sheet 16 is similarly bonded to the lower side of the back sheet 13 with a known bonding means. The liquid-impervious lower surface sheet 16 is thermally bonded with a predetermined gap between the both ends of the top sheet 12 and the back sheet 13 sealed by the pad main body 15 after being folded in two.

  As described above, the lower surface sheet 16, the front surface sheet 12, and the back surface sheet 13 are thermally bonded to form a finger insertion opening 20 having a substantially triangular cross section between the back surface sheet 13 and the lower surface sheet 16 of the pad main body 15. The

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. Is preferably made of a liquid permeable material.
Reference numeral 17 denotes an adhesive provided on the lower surface sheet 17 of the interlabial pad 10, and the conventional well-known adhesive as described later covers the entire periphery of the back surface of the pad body 15 so as to surround the liquid passage hole 22. The adhesive 17 is directly connected to an absorbent body of a combination pad such as a sanitary napkin (not shown).

By providing the continuous adhesive 17 on the lower surface of the pad main body 15, menstrual blood that has flowed out from the absorbent body 14 of the interlabial pad 10 through the liquid passage hole 22 passes through the liquid passage hole 22 of the lower surface sheet 16. Absorbed by the absorber. In this case, even if there is a large amount of menstrual blood flowing out, menstrual blood or the like overflowing on the absorbent body of the combined pad leaks because the lower surface sheet 16 and the absorbent body of the combined pad are closely bonded. There is nothing.
In addition, although it is preferable that the adhesive 17 is a continuous layer, the adhesive 17 may not necessarily be continuous as long as it is provided around the liquid passage hole 22. For example, by forming the pressure-sensitive adhesive layer in a broken line shape, it is possible to suppress the spread in the width direction of menstrual blood by forming the pressure-sensitive adhesive layer in the same manner or by forming it only in the side region.

  Furthermore, as shown in FIG. 1D, the back sheet 13 after mounting has a part where the back sheets are in contact with each other and a part where the bottom sheet 16 is in contact. If the inverted T-shape at the time of wearing is stably formed, menstrual blood can be easily guided to the absorbent body of a combination pad such as a sanitary napkin through the liquid passage hole formed in the lower surface sheet. In order to stably form the inverted T-shape, the back sheet 13 and the bottom sheet 16 are joined so as to overlap the adhesive forming position.

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, the configuration other than the adhesive 17 on the non-skin contact surface side of the interlabial pad 10 shown in FIG. 2 is the same as that of the first embodiment. Except for, adhesive is provided on the entire bottom sheet. By providing the adhesive 17 in this way, the bond between the interlabial pad 10 and the adhesive of the combination pad is further strengthened, so that leakage of menstrual blood or the like from the absorbent body of the lower surface sheet 16 and the combination pad is prevented. Can be completely prevented.
In the present embodiment, a liquid permeable sheet may be used for the lower surface sheet, and a plurality of adhesive non-coated portions for liquid passage may be provided in the same manner as the liquid passage holes. In this case, the back sheet 12 may be liquid permeable or a liquid impermeable sheet provided with a plurality of liquid passage holes.

FIG. 3 shows a third embodiment of the pad 10 between the labia.
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. And
A plurality of liquid passage holes 22 and an adhesive 17 are formed on the back sheet 13 so as to surround it.
The configuration of the adhesive 17 on the non-skin contact surface side of the interlabial pad 10 is the same as that of the first embodiment, but the back surface is the same as in the second embodiment shown in FIG. The pressure-sensitive adhesive 17 may be provided on the entire surface of the sheet 13 excluding the liquid passage hole 22, or the back sheet 13 may be liquid permeable and the adhesive non-coated portion for liquid passage may be the same as the liquid passage hole. A plurality of locations may be provided.

  In this embodiment, since the capacity of the absorber 14 is large, more menstrual blood and the like can be absorbed, and the adhesive 17 is directly provided on the back sheet 20, so that menstrual blood and the like are 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.

4A is a cross-sectional view of the interlabial pad according to the fourth embodiment of the present invention taken along line XX in FIG. 4B, and FIG. 4B is a plan view seen from the non-skin contact surface side.
As shown in FIG. 4A, the interlabial pad 10 according to the fourth embodiment is similar to the interlabial pad according to the first embodiment. It has a pad body 15 composed of a liquid-impermeable back sheet 13 on the opposite side, that is, the non-skin contact surface side, and an absorbent body 14 accommodated between both sheets. The sheets 12 and 13 are bonded by a known heat bonding means such as heat seal or high frequency seal to seal the absorber 14, and another lower sheet 16 is similarly bonded to the lower side of the back sheet 13. The sheet is folded in two as shown in the figure and thermally bonded to the liquid-impermeable bottom sheet 16 with a predetermined gap between both ends of the top sheet 12 and the back sheet 13 sealed by the pad body 15. .

  By thermally bonding the lower surface sheet 16 to the front surface sheet 12 and the back surface sheet 13 as described above, a finger insertion port and a space 20 having a substantially triangular cross section are formed between the back surface sheet 13 and the lower surface sheet 16 of the pad main body 15. Is formed.

As shown in FIG. 4B, 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 an adhesive provided on the lower surface sheet 17 of the interlabial pad 10, and the conventional well-known adhesive as described later covers the entire periphery of the back surface of the pad body 15 so as to surround the liquid passage hole 22. The adhesive 17 is directly connected to an absorbent body of a combination pad such as a sanitary napkin (not shown).
In addition, as shown in FIG. 2, the adhesive may be applied to the entire surface of the lower surface sheet corresponding to the pad main body 15 except the liquid passage holes 22. In this case as well, a liquid permeable sheet may be used for the lower surface sheet, and a plurality of adhesive non-coating regions for liquid passage may be provided in the same manner as the liquid passage holes.

  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 over the entire side edge portion. The wing W has adhesives 18 for bonding the interlabial pad 10 to a sheet of a combination pad such as a sanitary napkin attached to shorts (not shown) on the lower side of the wing W, that is, the non-skin contact surface side. It is provided at a symmetrical position.

  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.

  Note that the width of the wing W described above is not limited to the above-described embodiment, and may extend to a substantially central portion in the longitudinal direction of the side edge portion of the pad main body 15 with a predetermined width. The forming sheet may be the same as the width of the wing, or may be formed to have the same length as the longitudinal length of the pad main body 15, and only the portion of the wing W may be formed with a narrow width.

Further, the shape of the absorbent body and therefore the absorbent body and the wing are not limited to those in the above embodiments, and the absorbent body is circular, elliptical, rectangular, or one whose width is increased, and the configuration is also limited to an integral one. The left and right two pad bodies may be bonded together, and the wing W may be, for example, a semicircular shape.
Furthermore, release paper is affixed to each of the adhesive layers as usual, and the release paper is peeled off during use to expose the adhesive, for example, bonded to an absorbent body of a combination pad.

In order to wear the interlabial pad 10 described above, if the interlabial pad is held in the hand or the interlabial pad 10 has the finger layer insertion part 20, the index finger of the dominant hand is inserted into the finger insertion part 20, The labia is opened with the finger of the other hand, and the surface sheet is mounted in the labia and is held by friction with the labia or the force of closing 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.
With the interlabial pad 10 attached, a sanitary napkin attached to shorts (not shown) is then brought into contact with the pad 10 and an adhesive provided on the non-skin contact surface side of the wing W of the pad 10 is used for sanitary purposes. Integrate by joining to a napkin.

In particular, when menstrual blood is large, the absorption capacity of the absorbent body 14 of the interlabial pad 10 may be leaked from the pad 10, but the leaked menstrual blood can be absorbed by the integrally bonded sanitary napkin. There is no risk of leakage.
Further, since the wing extends to the side of the absorbent body 14 of the pad 10, the shorts and the sanitary napkin can be protected from dirt.

  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 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 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, cotton, etc. 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 sheets selected from nonwoven materials such as spunlace nonwoven fabrics and thermal bond nonwoven fabrics, or pulverized products, air-laid valve nonwoven fabrics, and the like.

  The adhesive applied to the side of the non-skin contact surface of the pad body 15 is mainly composed 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-skin contact surface in 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, 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. . It is the top view seen from the non-skin contact surface side of the interlabial pad which concerns on 2nd Embodiment. It is sectional drawing similar to FIG. 1C which shows the cross-sectional structure of the labia pad concerning 3rd Embodiment. 4A is a plan view seen from the non-skin contact surface side of the labial pad according to the fourth embodiment, and FIG. 4B is a sectional view similar to FIG. 1C showing the sectional structure thereof.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Interlabial pad, 12 ... Top sheet, 13 ... Back sheet, 14 ... Absorber, 15 ... Pad body, 16 ... Bottom sheet, 17, 18 ... Adhesion Agent, 20 ... finger insertion hole, 22 ... liquid passage hole, W ... wing.

Claims (5)

An interlabial pad comprising a top sheet, a back sheet, and an absorbent body disposed between both sheets,
An interlabial pad comprising a plurality of liquid passage holes in the back sheet and an adhesive layer disposed so as to surround the plurality of liquid passage holes. A pad body comprising a top sheet, a back sheet comprising a plurality of liquid passage holes in a liquid-impermeable sheet or made of a liquid-permeable sheet, and an absorbent body disposed between the two sheets; and the pad body An interlabial pad having a lower surface sheet joined to the non-skin contact surface side of
The interlabial pad, wherein the lower surface sheet includes a plurality of liquid passage holes and an adhesive layer disposed so as to surround the plurality of liquid passage holes. In the interlabial pad according to claim 1 or 2,
The interlabial pad, wherein the adhesive layer is continuously formed so as to surround the plurality of liquid passage holes. In the interlabial pad according to claim 1 or 2,
The interlabial pad, wherein the adhesive layer is formed on the entire surface excluding the liquid passage hole. Each of the interlabial pads is composed of a top sheet and a back sheet that are liquid permeable, and an absorbent body disposed between both sheets, and an adhesive layer is formed on the back sheet,
The interlabial pad, wherein the back sheet is formed with a plurality of adhesive non-coated portions for liquid passage.

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