JP5391015B2 - Auxiliary absorbent article and outer absorbent article used therefor - Google Patents

Auxiliary absorbent article and outer absorbent article used therefor Download PDF

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JP5391015B2
JP5391015B2 JP2009225797A JP2009225797A JP5391015B2 JP 5391015 B2 JP5391015 B2 JP 5391015B2 JP 2009225797 A JP2009225797 A JP 2009225797A JP 2009225797 A JP2009225797 A JP 2009225797A JP 5391015 B2 JP5391015 B2 JP 5391015B2
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absorbent article
rigidity
portion
low
outer
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JP2011072451A (en
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祐希 中野
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大王製紙株式会社
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  The present invention makes it easy to deform along the body, prevents misalignment, provides a good wearing feeling, eliminates gaps that cause leakage, and improves the appearance during wearing, and an auxiliary absorbent article The present invention relates to an outer absorbent article used for this.

  Conventionally, as a commercially available underpants-type disposable diaper for adults, a thin product with a thin absorbent body has been gaining market share for reasons such as good wearing feeling and low price. In such a thin pants-type paper diaper, the ratio of using an auxiliary absorbent article such as a urine absorbing pad on the surface side is high in order to supplement the absorbability of the paper diaper.

  As a conventional auxiliary absorbent article 50, as shown in FIG. 10, an absorbent element 54 including an absorbent 53 is interposed between a liquid-permeable top sheet 51 and a back sheet 52, and FIG. As shown, in order to join with the surface side of the outer absorbent article 60 when used on the surface side of the outer absorbent article 60, the joining means 55, 55 is provided on the surface on the back sheet 52 side. Is provided.

  As such an auxiliary absorbent article, Patent Document 1 below discloses an inner panel in which a male surface fastener that can be hooked to the inner surface of an outer member is fixed to the outer surface of a back sheet.

JP 2001-129011 A

  However, in the conventional auxiliary absorbent article 50 such as the inner panel described in Patent Document 1, since the auxiliary absorbent article 50 is stacked on the surface side of the outer absorbent article 60, as shown in FIG. The wearer feels worse, and the rigidity becomes too high, so that it does not fit to the unevenness of the body such as the concave part of the ruptured part or the convex part of the penis, and between the surface of the auxiliary absorbent article 50 and the body. There may be a problem that a gap is formed and leakage easily occurs.

  Further, since the joining means 55 is provided at the front and rear end portions of the auxiliary absorbent article 50 at a predetermined length along the width direction at the center portion in the width direction, the auxiliary absorbent article is determined by the rigidity of the joining means 55. However, it is difficult to deform along the unevenness of the body, which causes the above-described deterioration of wearing feeling and occurrence of leakage.

  Therefore, the main problem of the present invention is to make it easy to deform along the body, prevent slippage, obtain a good wearing feeling, eliminate gaps that cause leakage, and improve the appearance during wearing An object of the present invention is to provide an absorbent article and an outer absorbent article used for the absorbent article.

In order to solve the above-mentioned problem, as the present invention according to claim 1, an absorbent element including an absorber is interposed between the liquid-permeable top sheet and the back sheet, and the outer surface is disposed on the back sheet side surface. An auxiliary absorbent article provided with a mechanical joining means for joining with the absorbent article,
In the absorbent body, on at least one side in the longitudinal direction, a linear low-rigidity portion having a relatively low rigidity is formed along the longitudinal direction from the edge of the central portion in the width direction,
In the mechanical joining means, a portion corresponding to the formation region of the low-rigidity part is set to have relatively low rigidity, or is provided on both sides of the formation region of the low-rigidity part so as to be separated in a left-right pair An auxiliary absorbent article is provided.

  In the first aspect of the present invention, a linear low with a relatively low rigidity is set along the longitudinal direction from the edge of the central portion in the width direction on at least one side in the longitudinal direction with respect to the absorber. By forming the rigid part, starting from this low-rigidity part, the absorber easily deforms along the concave part of the cracked part on the back body side and along the convex part of the penis on the front body side. By fitting, you can prevent misalignment during wearing, you can get a good wearing feeling, you can eliminate the gap between the body and the auxiliary absorbent article that causes leakage, and you can wear it neatly without wearing anything The appearance inside can be improved.

  Further, the mechanical joining means is provided such that a portion corresponding to the formation region of the low-rigidity part is set to be relatively low in rigidity, or is provided on both sides of the formation region of the low-rigidity part so as to be separated from each other in left and right pairs. Therefore, the above-mentioned effects can be reliably exhibited without hindering the deformation of the absorber starting from the low-rigidity portion of the absorber due to the rigidity of the mechanical joining means.

  According to a second aspect of the present invention, there is provided the auxiliary absorbent article according to the first aspect, wherein the low rigidity portion is formed over the entire length in the longitudinal direction of the absorber.

  According to the second aspect of the invention, by forming the low-rigidity portion over the entire length in the longitudinal direction of the absorbent body, along the concave portion of the cracked portion on the back body side and the convex portion of the penis on the front body side. Each can be deformed into a convex shape or a concave shape.

  According to a third aspect of the present invention, the low-rigidity portion is formed in a linear shape along the longitudinal direction from the edge of the central portion in the width direction, and then branches from the tip portion to both end portions of the absorber. The auxiliary absorbent article according to claim 1, wherein the auxiliary absorbent article is formed in a curved shape.

  In the invention described in claim 3, after the low-rigidity portion is formed in a line shape along the longitudinal direction from the edge of the central portion in the width direction, the low-rigidity portion is branched from the tip portion and directed toward both end portions of the absorber. Each of them is formed in a curved shape so as to be able to follow the roundness of the buttocks in particular.

  According to a fourth aspect of the present invention, the mechanical joining means is relatively formed by a plurality of slit grooves formed along a width direction or a thinning process by embossing in a portion corresponding to the formation region of the low rigidity portion. The auxiliary absorbent article according to any one of claims 1 to 3, wherein the rigidity is set to be low.

  The invention according to claim 4 shows means for setting the rigidity relatively low for the portion corresponding to the formation region of the low rigidity portion in the mechanical joining means. Specifically, a plurality of slit grooves formed along the width direction or thin-wall processing by embossing may be formed.

  As the present invention according to claim 5, in the outer absorbent article, at least in the back body, an elastic elastic member is disposed along the front-rear direction at the center in the width direction. An outer absorbent article for use in the auxiliary absorbent article described is provided.

  As the present invention according to claim 6, in the outer absorbent article, at least in the back body, it extends from one side part of both side parts to the crotch part side, and bulges toward the waist opening side in the center part in the width direction. The auxiliary absorbent article according to any one of claims 1 to 4, wherein a plurality of curved elastic elastic members are provided so as to extend over the other side after the convex locus is drawn. The outer absorbent article used is provided.

  The inventions according to claims 5 and 6 are defined for outer absorbent articles such as disposable diapers that are preferably used for the auxiliary absorbent article. An elastic elastic member is disposed along the direction, and in the invention according to claim 6, a convex locus extending from one side of the both sides to the crotch side and bulging to the waist opening side at the center in the width direction. After drawing, a plurality of curved elastic elastic members arranged to extend over the other side are arranged. As a result, the outer absorbent article and the auxiliary absorbent article can be easily fitted together along the recess of the cracked portion, and the function of the auxiliary absorbent article can be more reliably exhibited.

  As described above in detail, according to the present invention, by making it easy to deform along the body, it is possible to prevent misalignment, obtain a good wearing feeling, eliminate gaps that cause leakage, and improve the appearance during wearing. The auxiliary absorbent article and the outer absorbent article used therefor can be provided.

It is a partially broken rear view of the auxiliary absorbent article 1 according to the present invention. It is the II-II arrow directional view. It is a longitudinal cross-sectional view of the state where the auxiliary absorbent article 1 is superimposed on the outer absorbent article 10. It is a rear view which shows the mounting state of the auxiliary absorbent article 1. It is a back view which shows the other form (the 1) of the auxiliary absorbent article 1. It is a back view which shows the other form (the 2) of the auxiliary absorbent article 1. It is a reverse view which shows the other form (the 3) of the auxiliary absorbent article 1. It is a rear view which shows the mounting state of the absorbent article 10 for outer which concerns on this invention. It is a rear view which shows the mounting state of the absorbent article 10 for outer. It is a partially broken rear view which shows the conventional auxiliary absorbent article 50. It is a longitudinal cross-sectional view which shows the use condition of the auxiliary absorbent article 50. It is a rear view which shows the mounting state of the auxiliary absorbent article 50.

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

  As shown in FIGS. 1 and 2, the auxiliary absorbent article 1 according to the present invention is made of cotton pulp or the like, and has an absorbent body 4 having a certain degree of rigidity, for example, a rectangular shape (or an hourglass shape) and the absorption. An absorbent element 6 comprising an encapsulating sheet 5 surrounding the body 4, and a perforated or non-porous nonwoven fabric or perforated plastic sheet disposed so as to cover the surface side (skin contact surface side) of the absorbent element 6 A perforated or non-porous nonwoven fabric or a perforated or non-porous plastic disposed so as to cover the liquid-permeable top sheet 3 made of, etc., and the back surface side (non-skin contact surface side) of the absorbent element 6 Mainly from a liquid-permeable or liquid-impervious back sheet 2 made of a sheet or the like and a mechanical bonding means 8 fixed to the surface on the side of the back sheet 2 and for bonding to the outer absorbent article 10 It is configured.

  In the auxiliary absorbent article 1, the absorber 4 is set to have a relatively low rigidity along the longitudinal direction from the edge of the central portion in the width direction on at least one side in the longitudinal direction, on the rear side in the illustrated example. A linear low-rigidity portion 7 is formed. And in the example of illustration, the said mechanical joining means 8 is provided in the formation area of the said low-rigidity part 7 on both sides of the formation area of the said low-rigidity part 7, and left-right paired apart.

  As shown in FIG. 3, when the auxiliary absorbent article 1 is used on the surface side of the outer absorbent article 10, the absorbent body 4 of the auxiliary absorbent article 1 starts from the low rigidity portion 7. It becomes easy to deform into a convex shape along the concave portion of the cracked portion, and the auxiliary absorbent article 1 fits to the body, can be prevented from slipping, and a good wearing feeling can be obtained. And the auxiliary absorbent article 1 are eliminated, and the appearance is not stiff, and the appearance during wearing is improved.

  Hereinafter, each configuration will be described in detail.

  As the liquid-permeable surface sheet 3 that covers the surface side (skin contact surface side) of the absorbent element 6, a porous or non-porous nonwoven fabric, a porous plastic sheet, or the like is preferably used. The material fibers that make up the nonwoven fabric can be synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, and polyamides, 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 spun bond method, an SMS method, a thermal bond method, an air through method, a point bond method, a melt blown method, or a needle punch method can be used. In particular, a nonwoven fabric processed by the SMS method is suitable so that pulp and SAP constituting the absorbent body 4 do not come out. When a large number of through holes are formed in the top sheet 3, urine and the like are quickly absorbed, and the dry touch properties are excellent. The topsheet 3 extends from the side edge of the absorbent element 6 to the side.

  As the back surface sheet 2 that covers the back surface side (outer surface side) of the absorbent element 6, a porous or non-porous nonwoven fabric, a porous or non-porous plastic sheet, or the like is preferably used similarly to the top sheet 3. The back sheet 2 also extends from the side edge of the absorber 4 to the same range as the side surface sheet 3. In the illustrated example, the top sheet 3 and the back sheet 2 are made of separate sheet materials, respectively covering the front and back surfaces of the absorbent body 4, but the non-woven fabric constituting the top sheet 3 and the back sheet 2 is, It may consist of one continuous nonwoven fabric, and the nonwoven fabric 4 may be wrapped with the nonwoven fabric so as to be framed or encased.

  The absorbent body 4 constituting the absorbent element 6 is composed of, for example, a fiber aggregate such as cotton pulp and a high absorbent material such as a super absorbent polymer (SAP) or a fibrous SAP. Is used, and the width dimension is a dimension width that does not give the wearer a feeling of gore by hitting the crotch part. The planar shape of the absorbent body 4 may be a substantially hourglass shape having constricted portions on both sides in order to reduce the contact with the legs.

  Further, synthetic fibers may be mixed in the absorbent body 4. 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.

  Examples of the superabsorbent polymer include cross-linked polyacrylate, self-crosslinked polyacrylate, saponified acrylate-vinyl acetate copolymer cross-linked, isobutylene / maleic anhydride copolymer cross-linked, Examples include cross-linked polysulfonates, and partially cross-linked water-swellable polymers such as polyethylene oxide and polyacrylamide. Among these, those based on acrylic acid or acrylate that are excellent in water absorption and water absorption speed are preferred. In the production process, the superabsorbent polymer having the water absorption capability can adjust the water absorption (absorption capacity) and the water absorption speed by adjusting the crosslink density and the crosslink density gradient. The content ratio of the superabsorbent polymer in the absorbent body 4 is suitably about 30 to 70%, but is not limited thereto.

  The absorber 4 is surrounded by the encapsulating sheet 5. Although the wrapping sheet 5 can be made of crepe paper made of a paper material such as tissue, it is preferable to use a nonwoven fabric in order to increase the absorption speed. When using a non-woven fabric, a non-woven fabric processed by a spunbond method or an SMS method, particularly a non-woven fabric processed by an SMS method, is preferred because of its excellent balance between thinness and strength. On the other hand, the encapsulating sheet 5 may be omitted, and it is preferable in terms of absorption speed and cost to directly wrap the absorber 4 with the top sheet 3 and the back sheet 2.

  As described above, the absorber 4 has the low rigidity portion 7 formed in a predetermined region. The low-rigidity portion 7 is a portion that is set to be relatively lower in rigidity than the surrounding absorbent body 4. When the auxiliary absorbent article 1 is mounted, the low-rigidity portion 7 serves as a starting point for the widthwise central portion of the absorbent body 4. It is deformed into a convex shape or a concave shape so as to easily follow the concave portion of the cracked portion or the convex portion of the penis. The low-rigidity portion 7 is formed by linear slits or embosses along the longitudinal direction from the longitudinal edge of the central portion in the width direction of the absorber 4.

  The low rigidity portion 7 has a width of 1 mm to 20 mm and a length of at least about 30 mm.

  As shown in FIG. 5, the low-rigidity portion 7 may be formed over the entire length in the longitudinal direction of the absorbent body 4. In this case, each of the concave portion of the rupture portion and the convex portion of the penis It becomes easy to fit by deform | transforming into convex shape or concave shape with respect to. In addition, although not shown in figure, you may make it form the low-rigidity parts 7 and 7 by predetermined length from the edge of the absorber 4 in each of the front side and the rear side.

  Further, as shown in FIG. 6, the low-rigidity portion 7 is linearly formed along the longitudinal direction from the edge of the central portion in the width direction, and then branches from the tip portion to both sides of the absorber 4. Each may be formed in a curved shape toward the end. In this case, the absorber 4 can be satisfactorily deformed along the roundness of the buttocks.

  In the mechanical joining means 8, a base of a fastening base material such as plastic, polylaminated nonwoven fabric, nonwoven fabric, or paper is fixed to the back sheet 2. A hook element is provided on the outer surface side of the fastening substrate. The hook element is bonded to the fastening base material with an adhesive so as not to be peeled off. The hook element has a number of engaging pieces on its outer surface. Examples of the shape of the engagement piece include a letter shape, a J shape, a mushroom shape, and a T shape, but any shape may be used. Preferred is a T-shape.

  As shown in FIGS. 1, 5, and 6, the mechanical joining means 8 is provided in the formation region of the low rigidity portion 7 so as to be spaced apart from each other on both sides of the formation region of the low rigidity portion 7. It is preferable to do so. That is, it is preferable not to provide the mechanical joining means 8 in the low rigidity portion 7.

  As shown in FIG. 7, the mechanical joining means 8 may be set such that the portion (easily deformable portion 8 </ b> A) corresponding to the formation region of the low-rigidity portion 7 has relatively low rigidity. As shown in FIG. 7 (B), the easily deformable portion 8A is subjected to a thinning process by embossing on the region straddling the low rigidity portion 7, and the thickness of the fastening base material of the mechanical joining means 8 is relatively set. It can be formed by thinning. Moreover, in the area | region straddling the said low-rigidity part 7, it can also set so that rigidity may become relatively low by forming a plurality of slit grooves along the width direction.

(Absorptive article 10 for outer)
Next, the outer absorbent article 10 such as a paper diaper preferably used for the auxiliary absorbent article 1 will be described in detail.

  As shown in FIG. 3, the outer absorbent article 10 includes an absorbent body 13 made of cotton-like pulp and the like and an absorbent body 13 between a liquid-permeable top sheet 11 and a liquid-impervious back sheet 12. The absorbent element 15 which consists of the surrounding encapsulating sheet 14 is interposed, and the front body and the back body are joined at both sides to form a pants-type diaper.

  In particular, in the outer absorbent article 10 according to the present invention, as shown in FIG. 8, at least in the back body, on the outer surface side of the absorbent body 13, the elastic elastic member along the diaper front-rear direction at the center in the width direction. 16 is disposed. This makes it easy to deform the absorbent body 13 of the outer absorbent article 10 and the absorbent body 4 of the auxiliary absorbent article 1 integrally along the recess of the cracked portion. In the illustrated example, the elastic elastic member 16 is made of rubber thread. However, for example, a tape-like elastic member may be used.

  Further, as shown in FIG. 9, in the present outer absorbent article 10, at least in the back body, on the outer surface side of the absorbent body 13, extends from one side portion of both side portions to the crotch portion side, and in the width direction. After the convex locus 17a bulging toward the waist opening side is drawn at the center portion, a plurality of curved elastic elastic members 17, 17... it can. Accordingly, the absorbent body 13 of the outer absorbent article 10 and the absorbent body 4 of the auxiliary absorbent article 1 can be easily deformed integrally along the roundness of the flange and the recess of the crack.

  DESCRIPTION OF SYMBOLS 1 ... Auxiliary absorbent article, 2 ... Back sheet, 3 ... Front sheet, 4 ... Absorber, 5 ... Encapsulating sheet, 6 ... Absorbing element, 7 ... Low-rigidity part, 8 ... Mechanical joining means, 10 ... Outer Absorbent article, 11 ... surface sheet, 12 ... back sheet, 13 ... absorber, 14 ... encapsulated sheet, 15 ... absorbing element, 16 · 17 ... elastic elastic member

Claims (6)

  1. An absorbent element including an absorber is interposed between the liquid-permeable top sheet and the back sheet, and mechanical joining means for joining the outer absorbent article to the surface on the back sheet side is provided. An auxiliary absorbent article,
    In the absorbent body, on at least one side in the longitudinal direction, a linear low-rigidity portion having a relatively low rigidity is formed along the longitudinal direction from the edge of the central portion in the width direction,
    In the mechanical joining means, a portion corresponding to the formation region of the low-rigidity part is set to have relatively low rigidity, or is provided on both sides of the formation region of the low-rigidity part so as to be separated in a left-right pair An auxiliary absorbent article characterized by the above.
  2.   The auxiliary absorbent article according to claim 1, wherein the low-rigidity part is formed over the entire length in the longitudinal direction of the absorbent body.
  3.   The low-rigidity portion is formed in a linear shape along the longitudinal direction from the edge of the central portion in the width direction, and then is branched from the tip portion and formed in a curved shape toward both end portions of the absorber. The auxiliary absorbent article according to claim 1.
  4.   The mechanical joining means is set to have a relatively low rigidity in a portion corresponding to the formation region of the low-rigidity portion by thin processing by embossing or a plurality of slit grooves formed along the width direction. Item 4. The auxiliary absorbent article according to any one of Items 1 to 3.
  5.   The said absorbent article for outer is used for the auxiliary absorbent article in any one of Claims 1-4 by which the elastic elastic member is arrange | positioned along the front-back direction at the width direction center part at least in the back body. Absorbent article for outer.
  6.   In the outer absorbent article, at least in the back body, after extending from one side of the both sides to the crotch side and drawing a convex trajectory bulging to the waist opening side in the widthwise center, The absorbent article for an outer used for the auxiliary absorbent article according to any one of claims 1 to 4, wherein a plurality of curved elastic elastic members are provided so as to extend over the other side portion.
JP2009225797A 2009-09-30 2009-09-30 Auxiliary absorbent article and outer absorbent article used therefor Active JP5391015B2 (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2740449T3 (en) 2012-12-10 2019-07-31 The Procter & Gamble Company Absorbent article with high absorbent material content
US9987176B2 (en) 2013-08-27 2018-06-05 The Procter & Gamble Company Absorbent articles with channels
CA2922316A1 (en) 2013-08-27 2015-03-05 The Procter & Gamble Company Absorbent articles with channels
JP6469754B2 (en) * 2016-04-27 2019-02-13 国立大学法人秋田大学 Absorbent pad set for hair washing and hair washing method using the same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63309602A (en) * 1987-06-12 1988-12-16 Oji Paper Co Disposable diaper equipped with auxiliary absorbing material
JP2000126228A (en) * 1998-10-29 2000-05-09 Oji Paper Co Ltd Absorptive article
JP3764010B2 (en) * 1999-11-04 2006-04-05 ユニ・チャーム株式会社 Body fluid absorbent inner panel
JP4354827B2 (en) * 2004-01-07 2009-10-28 ユニ・チャーム株式会社 Disposable wearing items
JP2006116036A (en) * 2004-10-21 2006-05-11 Kao Corp Absorbent article
JP4350791B2 (en) * 2006-03-31 2009-10-21 大王製紙株式会社 Pants-type disposable diaper cover
JP2008284190A (en) * 2007-05-18 2008-11-27 Oji Nepia Kk Absorbent article

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