JP5421140B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article having an interlabial pad portion to be worn between labiums, and to ensure that the interlabial pad portion fits between labial portions to prevent leakage and to prevent hand stains during replacement. Relates to the absorbent article.

  Conventionally, as an absorbent article such as a panty liner, sanitary napkin, incontinence pad, a liquid-impervious back sheet such as a polyethylene sheet or a polyethylene sheet-laminated nonwoven fabric, and a liquid-permeable surface sheet such as a nonwoven fabric or a liquid-permeable plastic sheet There is known an intervening absorber made of cotton-like pulp or the like.

  In addition, in order to improve the adhesion to the blood drainage port and prevent leakage of menstrual blood or the like, an interlabial pad to be worn between the labia is known. For example, in Patent Document 1 below, a pad body made of a top sheet, a back sheet, and an absorbent body that is interposed between the two sheets and is formed in a folded shape in which the skin contact surface of the top sheet is convex. The interlabial pad has a connecting member that connects between the non-skin contact surfaces of the back sheet of the bi-fold pad body.

  Patent Document 2 listed below is an interlabial pad mounting aid used when mounting an interlabial pad having a size and shape that can be easily inserted between the labia. The underwear or the absorbent article is worn by being attached to the undergarment or the absorbent article so as to form a suspension bridge-like state from the front to the rear of the absorbent article. Wearing an interlabial pad comprising a long member that supports the interlabial pad from the opposite side of the body and urges the interlabial pad toward the wearer's body in order to stably fix the pad between the labia An aid is disclosed.

JP 2007-111191 A JP 2005-296025 A

  However, in the interlabial pad described in Patent Document 1, when worn, the dominant hand is inserted into the finger insertion portion formed between the non-skin contact surface of the back sheet of the pad body and the connecting member, and the other hand Open the labia with your finger and attach the pad, and at the time of detachment when replacing the interlabial pad, the work of picking and removing the connecting member exposed on the surface of the blood drainage port by hand Necessary. For this reason, the interlabial pad soaked with menstrual blood or the like at the time of desorption has to be picked with a finger.

  On the other hand, in the case of using the interlabial pad wearing aid described in Patent Document 2, in order to reliably prevent leakage of menstrual blood, etc., although the dirt on the hand when removing the interlabial pad is improved. Since it is necessary to use both the interlabial pad and the sanitary napkin, there is a problem that it takes time and labor that both the interlabial pad and the napkin must be opened and attached and removed.

  Accordingly, a main object of the present invention is to provide an absorbent article that fits securely between the labia and prevents leakage, and prevents dirt on the hands during replacement and reduces labor.

In order to solve the above-mentioned problem, the present invention according to claim 1 includes a liquid-permeable top sheet and a liquid-impervious back sheet, each having a vertically long side part and a central part provided between the both side parts. Forming in a substantially H shape in plan view, interposing an absorption element to be worn between the labia at least in the center in the width direction of the center between the two sheets,
Of the center portion, the sheet portions on both sides where no absorbent element is interposed are folded back to the back side, respectively, and the inner edges of the both side portions are brought close to each other or overlapped with each other, The outer sheet member that integrally covers the both side portions is joined, and a loop-shaped interlabial pad portion that is continuous from the center portion on the surface side of the both side portions and opens along the longitudinal direction is formed by the center portion. An absorbent article characterized by the above is provided.

  In the first aspect of the present invention, first, each of the top sheet and the back sheet is formed in a substantially H shape in a plan view composed of both side portions and a central portion, and at least between the both sheets between the labia. A laminated body is formed with interposed absorbent elements. And about this laminated body, the sheet portions on both sides where no absorbent element is interposed in the central portion are folded back to the back side, respectively, so that the inner edges of the both side portions are close to each other or polymerized, An outer sheet member that integrally covers the both side portions is joined to the outer surface side of the back sheet. Accordingly, a loop-like interlabial pad portion that is continuous from the center portion on the surface side of the both side portions and opens along the longitudinal direction of the absorbent article is formed by the center portion.

  In such an absorbent article, at the time of wearing, a finger of a hand is inserted inside the loop-shaped central portion formed on the surface side of the absorbent article, and the absorbent element is worn between the labia. On the other hand, at the time of detachment when exchanging the absorbent article, other components of the absorbent article such as the both side parts can be picked and detached by hand without directly touching the interlabial pad part. For this reason, it is possible to prevent soiling of hands during mounting and replacement, and it is possible to perform hygienic replacement work, thereby reducing labor for mounting and replacement.

  In addition, since the interlabial pad portion is continuously provided from the center portion on the surface side of the both side portions, when a means for preventing misalignment with the underwear is appropriately employed in the absorbent article, the interlabial pad portion The displacement is suppressed, and the absorbent element is interposed in the central portion in the width direction of the central portion that forms the interlabial pad portion. Therefore, the sheet portions on both sides of the central portion where the absorbent element is not interposed are buffered. This makes it possible to maintain the state in which the interlabial pad portion is in close contact with the blood drainage port even in the case of intense body movement, and can surely prevent leakage.

  Furthermore, because both sides with a liquid-impermeable back sheet are present outside the interlabial pad, leakage of menstrual blood etc. that could not be absorbed by the interlabial pad But it can prevent the underwear from getting dirty.

  As this invention which concerns on Claim 2, while passing the center part of the width direction of the said absorption element on the back surface sheet side of the said absorption element interposed by the said center part, it extends outside the front-and-rear edge of the said absorbent article. The absorbent article according to claim 1, wherein an existing belt-shaped belt member is disposed.

  In order to improve the hygienic surface and work labor at the time of wearing, the invention according to claim 2 passes through the central portion in the width direction of the absorbent element on the back sheet side of the absorbent element in the central portion, and also absorbs the absorption. A belt-like belt member extending outside the front and rear end edges of the adhesive article is disposed.

  By arranging the band member, when the absorbent article is mounted, the interlabial pad part is placed between the labia by pulling up the band member from the front and back with the interlabial pad part applied to the blood drainage port part. It is possible to make it adhere, and the attachment work can be performed easily, and the attachment and detachment are completed without touching the surface side of the absorbent article at all.

  In addition, the interlabial pad portion can be maintained in close contact with the labial area by, for example, inserting the band member into the groove of the buttock or by protruding the band member from the underwear.

  According to a third aspect of the present invention, in the first or second aspect, wing-shaped flaps are formed on both side portions of the outer sheet member so as to be fixed so that the crotch portion of the underwear is wound around when being mounted. An absorbent article is provided.

  The invention according to claim 3 is a means for fixing the absorbent article to the underwear, and forms a wing-shaped flap for fixing the crotch portion of the underwear on both side portions of the outer surface sheet member at the time of mounting. It is what I did.

  As this invention which concerns on Claim 4, the absorbent article in any one of Claims 1-3 with which the absorption element is interposed between the surface sheet and back surface sheet of the said both sides is provided.

  The invention according to claim 4 is intended to prevent more reliable leakage of menstrual blood and the like by providing an absorption function such as menstrual blood also on both side portions interposed on the outer surface side of the interlabial pad portion. . In addition, by providing both sides with an absorption function, a general absorbent article such as a sanitary napkin can be integrally provided with an interlabial pad, so a normal interlabial pad and a sanitary napkin It is possible to greatly simplify the time and labor of opening and attaching each of them when they are used together.

  As the present invention according to claim 5, there is provided an absorbent article according to claim 4, wherein the inner edges of the both side portions are polymerized and the inner portions of the absorbent elements on the both side portions are overlapped with each other.

  The invention according to claim 5 prescribes a preferable mode in which an absorption element is interposed between the both side portions, and forms an absorption region without any gap between the both side portions to ensure leakage of menstrual blood and the like. In order to prevent this, the inner portions of the absorbent elements on both sides overlap each other.

  As described above in detail, according to the present invention, it is possible to provide an absorbent article that reliably fits between the labia and prevents leakage, and prevents hand dirt during replacement and reduces labor.

It is a partial fracture development view of sanitary napkin 1 concerning the present invention. It is the II-II arrow directional view. FIG. 1 is an exploded view of a sanitary napkin 1. FIG. It is a cross-sectional view of the sanitary napkin 1 showing the mounting procedure. 1 is a development view of a sanitary napkin 1A including a band member 15. FIG. It is a VII-VII arrow line view of FIG. It is a cross-sectional view of the sanitary napkin 1 according to another embodiment (part 1). It is a cross-sectional view of the sanitary napkin 1 according to another embodiment (part 2). It is process drawing which shows the manufacturing process of the sanitary napkin 1. FIG. It is a procedure figure which shows the individual packaging point of 1 A of sanitary napkins.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  The sanitary napkin 1 according to the present invention, as shown in FIG. 1 to FIG. 4, quickly transmits a liquid-impervious back sheet 2 made of a polyethylene sheet, a polypropylene sheet, etc., and menstrual blood or a cage. In order to maintain the shape of the absorbent bodies 4 and 5 and improve the diffusibility, the liquid-permeable surface sheet 3 and the absorbent bodies 4 and 5 made of cotton-like pulp or synthetic pulp interposed between the two sheets 2 and 3. The absorbent elements 8 and 9 are made of crepe papers 6 and 7 surrounding the absorbent bodies 4 and 5 respectively, and the outer sheet member 10 is joined to the outer surface side of the rear sheet 2.

  As shown in FIG. 4, each of the top sheet 3 and the back sheet 2 is a plan view in which vertically long side portions 11 and 11 and a central portion 12 provided between the side portions 11 and 11 are integrally formed. It is formed in a substantially H shape, and the absorbent element 8 mounted between the labia is interposed between the two sheets 2 and 3 in the central portion in the width direction of the central portion 12, and the both side portions 11 and 11 are interposed. The absorbent elements 9 and 9 are interposed, respectively. And the sheet | seat parts 12a and 12a of the both sides in which the absorption element 8 is not interposed among the said center part 12 are made into the state which turned up the inner side edges of the said both-sides parts 11 and 11, respectively, by folding to the back surface side. The outer sheet member 10 that integrally covers the both side parts 11 and 11 is joined to the outer surface side of the back sheet 2 of the parts 11 and 11. Accordingly, the interlabial pad portion P is formed by the central portion 12 so as to continue from the central portion on the surface side of the side portions 11 and 11 arranged side by side. That is, as shown in FIG. 3, a loop-like interlabial pad portion P having an opening K penetrating in the longitudinal direction of the sanitary napkin 1 is formed at the center portion on the surface side of the sanitary napkin 1. It is like that.

Hereinafter, the structural example of the sanitary napkin 1 will be described in detail.
The back sheet 2 is made of a sheet material having at least a water shielding property such as an olefin resin sheet such as polyethylene or polypropylene. In addition to this, a laminated nonwoven fabric in which a nonwoven fabric is laminated on a polyethylene sheet or the like, and further a waterproof film is interposed. Thus, after substantially ensuring liquid impermeability, a non-woven sheet (in this case, a waterproof film and a non-woven fabric constitute a liquid impermeable back sheet) can be used. In recent years, those having moisture permeability tend to be used from the viewpoint of preventing stuffiness. This water- and moisture-permeable sheet material is a microporous sheet obtained by forming a sheet by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretching in a uniaxial or biaxial direction. It is.

  Next, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used as the top sheet 3. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and drapeability, and the thermal bond method is excellent in terms of being bulky and soft.

  Of the absorbers 4 and 5 interposed between the back sheet 2 and the top sheet 3, the absorber 4 interposed in the central portion 12 is composed of, for example, fluffy pulp and a water-absorbing polymer. . The water-absorbing polymer is mixed in the pulp constituting the absorber, for example, as granular powder. Examples of the pulp include chemical fibers obtained from wood, cellulose fibers such as dissolved pulp, and artificial cellulose fibers such as rayon and acetate. Softwood pulp having a longer fiber length than hardwood pulp functions and It is preferably used in terms of price. On the other hand, the absorbent body 5 interposed between the both side portions 11 is formed by airlaid mainly composed of the pulp, for example.

  It is preferable that the absorber 4 interposed in the central portion 12 has a vertically long deformed elliptical shape (illustration example), an oval shape, a rectangular shape or the like so as to be easily worn between the labia. The intervening absorber 5 is preferably formed along the shape of the vertically long side portions 11. Moreover, although the said absorbers 4 and 5 can also be formed by equivalent thickness, since the absorber 4 interposed by the center part 12 is used by mounting | wearing between labia, it forms relatively thickly. In order to make the sanitary napkin 1 thin, the absorbent body 5 interposed between the side portions 11 is preferably formed relatively thin.

  When the absorbent elements 9 and 9 are interposed in the both side parts 11 and 11, respectively, as shown in FIG. 2, the inner edges of the both side parts are overlapped so that the inner parts of the absorbent elements 9 and 9 overlap each other. It is preferable to do so. As a result, absorption regions are formed on both side portions 11 and 11 without any gaps, and leakage of menstrual blood or the like can be reliably prevented.

  Further, synthetic fibers may be mixed in the absorbent bodies 4 and 5. As the synthetic fiber, for example, polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyamides such as nylon, and copolymers thereof can be used. It may be a mixture. In addition, a composite fiber such as a core-sheath fiber, a side-by-side fiber, or a split fiber having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can also be used. In the case of a hydrophobic fiber, it is desirable to use a synthetic fiber that has been surface-treated with a hydrophilizing agent so as to have an affinity for body fluids.

  In addition, when the crepe papers 6 and 7 surrounding the absorbent bodies 4 and 5 are provided as in this example, the crepe paper is interposed between the liquid-permeable surface sheet 3 and the absorbent bodies 4 and 5 as a result. As a result, body fluid is quickly diffused by the crepe paper having excellent absorbability, and reversal of menstrual blood and the like is prevented.

  As the outer surface sheet member 10 joined to the outer surface side of the both side parts 11, 11, a sheet member having a strength that does not easily tear after joining the both side parts 11, 11 can be used. It is good also as a monolayer body, such as these, and it is good also as a laminated body which laminated | stacked these. Further, as described in detail later, the laminate of the top sheet 3 and the back sheet 2 can be cut into the shape of the outer sheet member 10 and used.

  Wing-shaped flaps W and W are formed on both sides of the outer sheet member 10 so as to be fixed so that the crotch portion of the underwear is wound up when the outer sheet member 10 is mounted. As shown in FIG. 2, the wing-shaped flaps W, W are arranged on the outer surface side of the outer surface sheet member 10 and on the outer surface side of the outer surface sheet member 10 of the main body so as to prevent misalignment with the underwear. Stop adhesive layers 13 and 14 are formed.

  Next, a method for using the sanitary napkin 1 will be described. When the sanitary napkin 1 is attached, the sanitary napkin 1 is fixed to the undergarment, and after lifting the undergarment, a hand is put into the undergarment and an opening K formed at the longitudinal end of the central portion 12 is formed. A finger is inserted from (see FIG. 5), and the absorbent element 8 is brought into close contact with the labia. Thus, in this sanitary napkin 1, since the interlabial pad portion P is integrally provided, when using the normal interlabial pad and the sanitary napkin together, it takes time and effort to open and wear each. It can be greatly simplified.

  On the other hand, when the sanitary napkin 1 is exchanged, when the undergarment is pulled down, the sanitary napkin 1 fixed to the undergarment is pulled down simultaneously, and the interlabial pad portion P is desorbed from the blood drainage port. Thereafter, the sanitary napkin 1 is removed from the undergarment and disposed of. As described above, since the sanitary napkin 1 is provided with the interlabial pad portion P in an integrated manner, the interlabial pad portion P can be removed without directly touching the interlabial pad soiled with menstrual blood or the like. It can be removed from the blood clot, and the hand can be prevented from being soiled at the time of replacement, and the hygienic replacement work can be performed, and the labor and time for replacement can be simplified.

  Next, another embodiment of the sanitary napkin 1 will be described. As shown in FIGS. 6 and 7, the absorbent element 8 is disposed on the back sheet 2 side of the absorbent element 8 interposed in the central portion 12. The sanitary napkin 1 </ b> A in which the band-shaped band member 15 is disposed extending through the center of the width direction 8 and extending outward from the front and rear end edges of the sanitary napkin 1 can be obtained. In this example, the band member 15 is joined to the outer surface of the back sheet 2 of the central portion 12 by a joining means such as hot melt.

  The band member 15 is formed in a band shape or a string shape with a material such as a nonwoven fabric having water repellency and less irritation to the skin. The band member 15 is formed to have a length that extends at least outward from the front and rear end portions of the sanitary napkin 1 and can be extended from the front and rear end portions of the undergarment.

  By disposing the band member 15, when the sanitary napkin 1 is mounted, the undergarment to which the sanitary napkin 1 is fixed is pulled up, and then the band member 15 is pulled up from the front and back, so that the interlabial pad portion P is moved to the labia. It becomes possible to install in between. Therefore, the labor of inserting the interlabial pad portion P between the labial areas by inserting a hand into the underwear and the interlabial pad can be saved, the mounting operation can be performed more easily, and the surface side of the sanitary napkin 1 can be touched at all. Since installation and desorption are completed without any problems, it becomes more hygienic.

  Further, the interlabial pad portion P is placed between the labia by using a portion of the band member 15 that extends outward from the interlabial pad portion P so that it is not easily inserted into the groove of the buttocks or protrudes from the underwear. It will be possible to maintain the attached state.

  As another example of the sanitary napkin 1, as shown in FIG. 8, the outer surface sheet member 10 can be joined to the both side portions 11, 11 with the inner edges close to each other. Moreover, as FIG. 9 shows, the absorption element 9 of the said both sides 11 is not necessarily required, and does not need to be arrange | positioned.

  By the way, a part of manufacturing process of the sanitary napkin 1 will be described with reference to FIG. FIG. 10 is an example showing a cut-out form of the laminate when the outer sheet member 10 is composed of a laminate of the top sheet 3 and the back sheet 2. Like the example of illustration, between the member which consists of the side part 11 and the center part 12 which orient | assigned the longitudinally long side parts 11 along the flow direction of the said laminated body, it is each outer sheet | seat member 10 to the recessed part of the center part 12 of front and back. The front and rear end portions of the outer surface sheet member 10 are disposed between the front and rear side portions 11, and the outer sheet member 10 is cut out so that the trim portion (in the drawing) (Slashed portion) can be reduced, and waste can be prevented.

  On the other hand, when the sanitary napkin 1A provided with the band member 15 is individually mounted, it can be individually mounted according to the procedure shown in FIG. That is, first, as shown in FIG. 11 (A), the sanitary napkin 1A is disposed on the individual sheet 16 having a predetermined length that is wider than the folded state of the wing-shaped flaps W, W, and The band member 15 on the side and the wing-shaped flaps W, W on both sides are each folded (belly folded) on the surface side of the sanitary napkin 1. After that, if the rear side of the napkin is folded to the surface side at the folding line position along the width direction on the rear side, the front side of the napkin is folded on the folding line position along the width direction on the front side. At this time, the band member 15 extending to the front side and the individual sheet 16 are joined at a portion S where both overlap, and the band member 15 extending outward from the individual sheet 16 is connected to the tag tape portion. 17 is folded on the surface side of the napkin 1 and an adhesive layer is formed on the tag tape portion 17 so that the band member 15 can be used as a tag tape for individual packaging. Need not be provided.

[Other examples]
In the above-described embodiment, the top sheet 3 and the back sheet 2 are formed such that the side portions 11 and 11 and the central portion 12 are integrally formed, but the side portions 11 and the central portion 12 are separately formed. You may make it comprise a sheet | seat member and may join these both sides 11 and 11 and the center part 12 so that planar view may become a substantially H shape.

  1.1A sanitary napkin, 2 ... back sheet, 3 ... top sheet, 4 · 5 ... absorbent, 6 · 7 ... crepe paper, 8 · 9 ... absorbent element, 10 ... outer sheet member, 11 ... both sides, 12 ... Central part, 13.14 ... Anti-displacement adhesive layer, 15 ... Band member, P ... Interlabial pad part, W ... Wing flap, K ... Opening

Claims (5)

Each of the liquid-permeable top sheet and the liquid-impervious back sheet is formed in a substantially H shape in a plan view composed of a vertically long side part and a central part provided between the both side parts, and at least between the two sheets. Interposing an absorption element to be worn between the labia in the widthwise center of the center,
Of the center portion, the sheet portions on both sides where no absorbent element is interposed are folded back to the back side, respectively, and the inner edges of the both side portions are brought close to each other or overlapped with each other, The outer sheet member that integrally covers the both side portions is joined, and a loop-shaped interlabial pad portion that is continuous from the center portion on the surface side of the both side portions and opens along the longitudinal direction is formed by the center portion. An absorbent article characterized by that.   On the back sheet side of the absorbent element interposed in the central portion, a belt-like belt member that passes through the central portion in the width direction of the absorbent element and extends outside the front and rear end edges of the absorbent article is disposed. The absorbent article according to claim 1.   The absorbent article according to any one of claims 1 and 2, wherein wing-shaped flaps are formed on both side portions of the outer surface sheet member so as to be fixed so as to wrap around the crotch portion of the underwear.   The absorbent article in any one of Claims 1-3 in which the absorption element is interposed between the surface sheet and back surface sheet of the said both sides.   The absorbent article according to claim 4, wherein the inner edges of the both side portions are polymerized and the inner portions of the absorbent elements on the both side portions are overlapped with each other.

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