JP2015119788A - Pants-type disposable clothing article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pants-type disposable clothing article capable of being pulled up by effectively applying force to an absorption structure.SOLUTION: The pants-type clothing article includes: an absorption structure 41 divided into front/back waist areas 11 and 12, and a crotch area 13, and extending from the crotch area to the front/back waist areas. The front/back waist areas include front/back waist upper end edges 16 and 17 respectively, extending in the lateral direction X. The absorption structure includes extension parts 44 running across at least one of the front/back waist upper end edges of the front/back waist areas and extending in the longitudinal direction. The lateral dimension of the extension parts is smaller than the lateral dimension of the front/back waist upper end edges.

Description

  The present invention relates to a pants-type disposable wearing article.

  Conventionally, disposable wearing articles are known. For example, Patent Document 1 includes an abdominal sheet member, a back sheet member disposed on the back side of the wearer, and an absorbent main body that is fixed over the vent sheet sheet. The length in the vertical direction is equal to or greater than the length in the same direction of the back side seat member, and the ventral side seat member and the back side seat member extend above the upper end edge of the back side seat member. In addition, a pants-type absorbent article is disclosed in which the back-side sheet member is joined so as to extend downward from the lower end edge of the ventral-side sheet member.

JP 2013-183938 A

  According to Patent Document 1, the pant-type absorbent article disclosed in the same document can be easily determined before and after depending on the form, and can be smoothly mounted while grasping the upper part of the abdominal side by hand. Yes (paragraph 0011).

  However, in the case of the pant-type absorbent article of Patent Document 1, since a member such as a nonwoven fabric or an elastic member is interposed between the upper end edge of the abdominal sheet member and the absorbent main body, the upper part of the abdominal sheet member When gripping and pulling up, it is difficult for force to be directly applied to the absorbent main body. For this reason, an absorptive main body may not fit a wearer appropriately, and there is still room for improvement.

  In view of the above, the present invention is a pant-type that can effectively apply force to the absorbent structure when grasping and pulling up the extension portion when worn, and can properly fit the absorbent structure to the wearer. It is an object to provide a disposable wearing article.

  The present invention has a longitudinal direction and a lateral direction, a skin surface facing the wearer's skin and a non-skin surface on the opposite side, and is positioned between the front waist region, the rear waist region, and the front and rear waist regions in the longitudinal direction. A front waist upper end edge and a rear waist upper end edge, each of which is divided into a crotch region and includes an absorbent structure that extends from the crotch region to the front and rear waist regions, and the front waist region and the rear waist region extend in the lateral direction, respectively, and the vertical direction The side edges of the front waist region and the side edges of the rear waist region are joined to each other, and the absorbent structure includes the absorbent core and the skin surface of the absorbent core. The present invention relates to a pants-type disposable wearing article comprising a first sheet member that covers the first sheet member and a second sheet member that covers the non-skin surface of the absorbent core.

  In the wearing article of the present invention, the absorbent structure has an extending portion that extends in the longitudinal direction from at least one of the front and rear waist regions beyond the front and rear waist upper edge, and the lateral dimension of the extending portion is It is characterized by being smaller than the lateral dimension of the edge.

  In the present invention, since at least one of the front end region and the rear end region of the absorbent structure has an extended portion that extends in the vertical direction from at least one of the front and rear waist regions beyond the front and rear waist upper edge, Sometimes, by grasping and pulling up the extension part, it is possible to effectively apply force to the absorbent structure through the extension part, and the absorbent structure can be properly fitted to the wearer. Specifically, in a pants-type disposable wearing article, the absorbent structure is located at the center in the lateral direction of the wearing article. Therefore, when trying to pull up the absorbent structure by grasping both sides of the front and rear waist upper edge, members such as nonwoven fabric and elastic members are interposed between the absorbent structure and both sides of the front and rear waist upper edge, The force to be pulled up is transmitted only indirectly to the absorbent structure. Moreover, when grasping and pulling up the both sides of the front-and-rear upper end edge, the force which pulls up diagonally upward acts on an absorption structure. On the other hand, when grasping and pulling up the extended portion of the present invention, a force can be directly applied to the absorbent structure. Further, in the present invention, since the lateral dimension of the extending portion included in the absorbent structure is smaller than the lateral dimension of the front and rear waist upper end edges, the absorbent structure is not diagonally upward but rather vertically. The pulling power is added. Therefore, if the extension part of this invention is grasped and pulled up at the time of wear, the force which pulls up an absorption structure can be applied effectively through an extension part.

The drawings illustrate specific embodiments of the invention and include selective and preferred embodiments as well as the essential features of the invention.
The perspective view of the diaper of an example of the disposable wearing article which concerns on 1st Embodiment. A partially broken development view of a diaper. The exploded perspective view of a diaper. The figure showing the modification of the diaper of 1st Embodiment. The figure showing the cross section of the extension part of a diaper, and its modification. The figure showing the modification of the diaper of 1st Embodiment. The partially broken expanded view of the diaper which concerns on 2nd Embodiment.

The following embodiment relates to a diaper 1 shown in the accompanying drawings, and includes not only an indispensable structure of the invention but also a selective and preferable structure.
<First Embodiment>
The pants-type diaper 1 which is an example of the wearing article of the present application shown in FIG. 1 has a lateral direction X and a longitudinal direction Y, a skin surface facing the wearer's skin, and a non-skin surface on the opposite side. The front waist region 11, the rear waist region 12, and the crotch region 13 located between the front and rear waist regions 11 and 12 are partitioned, and the front and rear waist regions 11 and 12 and the crotch region 13 are arranged in the longitudinal direction Y. Each of the front waist region 11, the rear waist region 12, and the crotch region 13 includes a front belt 14, a rear belt 15, and an absorbent structure 41. The absorbent structure 41 extends from the crotch region 13 to the front and rear waist regions 11, 12. Extend. Further, the skin surfaces of the side edge portion 20 of the front belt 14 and the side edge portion 21 of the rear belt 15 are joined to each other at a pair of seam portions 29 extending in the longitudinal direction Y, and the front waist upper end edge 16 of the front belt 14 and A waist opening edge 22 is formed by the rear waist upper end edge 17 of the rear belt 15. Further, from each of the front and rear waist upper end edges 16 and 17 of the front and rear belts 14 and 15, an extended portion 44 of an absorption structure 41 described later is included in the front and rear waist regions 11 and 12. 16 and 17 extend in the longitudinal direction Y. In other words, the extended portion 44 protrudes in a convex shape with respect to the front and rear belts 14 and 15.

  FIG. 2 is a plan view of the diaper 1 when the front and rear belts 14 and 15 are unbonded in the seam portion 29 of the pant-type diaper 1 of FIG. As shown in FIG. 2, the front belt 14 and the rear belt 15 of the diaper 1 are rectangular with the same shape and the same size, and are spaced apart from each other in the vertical direction Y and extend in the horizontal direction X. The front belt 14 and the rear belt 15 are respectively a front waist upper edge 16 and a front waist lower edge 18 that extend in parallel with each other in the lateral direction X, and a rear waist upper edge 17 and a rear waist lower edge that extend in parallel with each other in the lateral direction X. An edge 19 and a pair of side edge portions 20 of the front belt 14 and a pair of side edge portions 21 of the rear belt 15 extending in parallel with each other in the longitudinal direction Y are provided. The absorption structure 41 is also rectangular, and includes a front end region 42 and a rear end region 43 located at both ends of the vertical direction Y, and a pair of absorber side edges 45 that intersect the front end region 42 and the rear end region 43 and extend in the vertical direction Y. Have The front end region 42 and the rear end region 43 of the absorbent structure 41 are joined to the laterally central portions of the front and rear belts 14 and 15, respectively. A pair of seam portions 29 extend in the longitudinal direction Y along the side edge portions 20 and 21 of the front and rear belts 14 and 15, and the skin of the side edge portions 20 and 21 of the front and rear belts 14 and 15 in the pair of seam portions 29. The surfaces are faced to each other and bonded by a known heat welding means such as heat sealing or ultrasonic welding. As a result, the waistline opening edge 22 is formed by the front and rear waist upper edges 16 and 17, and a pair is formed by the pair of absorber side edges 45 of the absorbent structure 41 and the front and rear waist lower edges 18 and 19 of the front and rear belts 14 and 15. The leg periphery opening edge 23 is formed (see FIG. 1).

  2 and 3, each of the front and rear belts 14 and 15 is a waist elastic member that extends in the waistline direction X while one front sheet member 24 and one rear sheet member 25 are folded back almost in half. 30 is joined by a hot melt adhesive (not shown) in an elongated state. Alternatively, the front and rear belts 14 and 15 can be formed by bonding different sheet materials, or the waist elastic member 30 can be joined without folding the front and rear sheet materials 24 and 25.

The front sheet material 24 and the back sheet material 25 are preferably made of a thermoplastic resin fiber and use a non-woven fabric having air permeability. The type of nonwoven fabric made of thermoplastic resin fibers is not particularly limited. For example, an SMS (spunbond / meltblown / spunbond) nonwoven fabric having a mass per unit area of about 10 to 30 g / m ² , or a spunbond nonwoven fabric, air-through Nonwoven fabric can be used. The waist elastic member 30 may be a plurality of strand-like or string-like elastic yarns or at least one strip-like nonwoven fabric having elasticity. The type of the waist elastic member 30 is not particularly limited, and for example, an elastic thread such as a rubber string having a thickness of 310 to 1240 dtex can be used. Moreover, although there is no restriction | limiting in particular in the expansion ratio at the time of joining the waist elastic member 30 to the front sheet material 24 and the back sheet material 25, For example, the expansion ratio of the waist elastic member 30 shall be 2.0 to 4.0 times. Can do.

  In the absorbent structure 41, the non-skin surfaces of the front and rear end regions 42 and 43 located at both ends in the longitudinal direction Y are joined to the skin surfaces in the center portion in the lateral direction X of the front belt 14 and the rear belt 15, respectively. Further, the front and rear end regions 42 and 43 include extending portions 44 that extend in the longitudinal direction Y beyond the front and rear waist upper edges 16 and 17 of the front and rear belts 14 and 15. The dimension in the lateral direction X of the extended portion 44 is smaller than the lateral X dimension of the front and rear waist upper edges 16 and 17. The lateral X dimension of the extended portion 44 is preferably 50% or less of the lateral X dimension of the front and rear waist upper edges 16 and 17. Thereby, when the extension part 44 is grasped and pulled up, a force can be applied mainly to the absorption structure 41 in the longitudinal direction Y. The lateral X dimension of the extended portion 44 and the front and rear waist upper edges 16 and 17 is measured in a state in which the front and rear belts 14 and 15 are stretched in the lateral direction X until there is no wrinkle due to contraction of the waist elastic member 30. To do. Further, the length of the extended portion 44 extending from the front and rear waist upper edges 16 and 17 refers to the front and rear waist upper edges 16 and 17 at the outer peripheral edge of the extended portion 44 from the front and rear waist upper edges 16 and 17 extending in the lateral direction X. Means the shortest distance from the point to the most distant point. Specifically, the front and rear belts 14 and 15 are extended in the lateral direction X until wrinkles disappear to make the front and rear waist upper edges 16 and 17 substantially linear, and the extending portion 44 extends vertically from the front and rear waist upper edges 16 and 17. The diaper 1 is extended so as to extend in a plane in the direction Y, and each extending portion 44 extending from the front and rear waist upper edges 16 and 17 along a line segment perpendicular to the front and rear waist upper edges 16 and 17 is provided. Measure the dimension up to the most distant point on the outer perimeter.

  The absorbent structure 41 includes an absorbent core 46, a first sheet member that covers the skin surface of the absorbent core 46, and a second sheet member that covers the non-skin surface of the absorbent core 46. The absorbent core 46 can be formed by wrapping a known body fluid absorbent material 47 such as fluff pulp and superabsorbent polymer particles (SAP) in a known liquid-permeable sheet-like member 48 such as tissue paper. In the example shown in FIGS. 2 and 3, the shape of the absorbent core 46 is substantially rectangular. However, the shape of the absorbent core 46 is not limited to this, and may be a shape such as an hourglass shape.

For the first sheet member covering the skin surface of the absorbent core 46, it is preferable to use a sheet material having liquid permeability and flexibility. In the present embodiment, the top sheet 26 made of a nonwoven fabric is used as the first sheet member. Examples of the nonwoven fabric that can be used for the top sheet 26 include an air-through nonwoven fabric having a mass per unit area of about 10 to 40 g / m ² , or a spunbond nonwoven fabric having a mass per unit area of about 10 to 30 g / m ² and SMS. The top sheet 26 that covers the skin surface of the absorbent core 46 has a longitudinal Y dimension that is larger than that of the absorbent core 46, extends to both outer sides in the longitudinal direction Y of the absorbent core 46, and a part thereof is included in the extended portion 44. . That is, a part of the top sheet 26 that extends to both outer sides in the longitudinal direction Y of the absorbent core 46 is included in the core non-existing region 49 where the absorbent core 46 is not disposed in the extended portion 44.

For the second sheet member that covers the non-skin surface of the absorbent core 46, a liquid-permeable or liquid-impervious flexible sheet material can be used. Any one of a water-permeable or liquid-impervious nonwoven fabric, or a combination of both can be used. Examples of the liquid-impervious plastic film include polyethylene films and polyester films, and as a liquid-impervious or liquid-impervious nonwoven fabric, an air-through nonwoven fabric, a spunbond nonwoven fabric, a point having a mass per unit area of 10 to 40 g / m ² Bond nonwoven fabric or SMS nonwoven fabric is illustrated. In the present embodiment, a leak-proof sheet 27 made of a plastic film and a back sheet 28 made of a nonwoven fabric are used as the second sheet member. The leak-proof sheet 27 is bonded to the non-skin surface of the absorbent core 46, and the back sheet 28 is bonded to the non-skin surface of the leak-proof sheet 27. In order to effectively prevent leakage of body fluid from the absorbent core 46, it is preferable to join a plastic film to the non-skin surface of the absorbent core 46.

  The longitudinal dimension Y of the leak-proof sheet 27 is larger than the absorbent core 46. Accordingly, a part of the leak-proof sheet 27 extends to both outer sides in the longitudinal direction Y of the absorbent core 46 and is included in the front and rear end regions 42 and 43 of the absorbent structure 41 and constitutes a part of the extended portion 44. That is, in the extended portion 44, a part of the leak-proof sheet 27 is included in the core non-existing area 49. The longitudinal direction Y dimension of the back sheet 28 is also larger than the longitudinal direction Y dimension of the absorbent core 46, and is substantially the same as the longitudinal direction Y dimension of the leakproof sheet 27. The absorbent core 46 and the leak-proof sheet 27 are arranged in the center in the lateral direction X of the skin surface of the back sheet 28. A part of the back sheet 28 extends to both outer sides in the longitudinal direction Y of the absorbent core 46, is included in the front and rear end regions 42, 43 of the absorbent structure 41, and constitutes a part of the extended part 44. Are included in the core non-existing area 49. Here, the core non-existence area 49 is an absorbent core 46 intentionally disposed between the first sheet member (ie, the top sheet 26) and the second sheet member (ie, the leak-proof sheet 27 and the back sheet 28). The region where the body fluid absorbent 47 spilled from the absorbent core 46 exists between the first sheet member and the second sheet member is not included in the core non-existing region 49.

  In addition, a pair of laterally extending portions 31 extending in the longitudinal direction Y by extending the backsheet 28 to both outer sides in the lateral direction X of the absorbent core 46 is provided, and the leg-opening edge 23 is provided in the laterally extending portion 31. In order to prevent leakage of excrement from the body, leakage prevention means such as a three-dimensional gather (not shown) known in the technical field to which the present invention belongs can be provided. Moreover, as a leg elastic member for joining the side extension part 31 in the state which extended the elastic thread | yarn (not shown) to the vertical direction, and improving the fitting property with respect to a wearer's leg of the leg periphery opening edge 23 It can also function. In the present invention, it is not essential to provide the lateral extension 31.

  In the present embodiment, in the longitudinal direction Y, the core end portions 51 located at both ends in the longitudinal direction Y of the absorbent core 46 do not exceed the front and rear waist upper edges 16 and 17. That is, the absorbent core 46 is not disposed in the extended portion 44 of the absorbent structure 41, and the entire extended portion 44 is a core non-existing region 49. In the core non-existence area 49, the non-skin surface of the top sheet 26 that covers the skin surface of the absorbent core 46 and the skin surface of the leak-proof sheet 27 that covers the non-skin surface of the absorbent core 46 are joined together. The skin surface of the back sheet 28 included in the existence area 49 is joined to the non-skin surface of the leak-proof sheet 27 (see FIG. 5A). Since the core non-existing area 49 is thin, when the diaper 1 is pulled up, it is easily grasped by hand. Further, by joining the sheet materials included in the core non-existing region 49 to each other by hot melt adhesive or heat welding, the core non-existing region 49 is easily maintained in a flat shape, and is more easily gripped. In addition, when joining the top sheet 26 and the leak-proof sheet 27, the top sheet 26 and the leak-proof sheet 27 can be joined to each other along the outer peripheral edge of the absorbent structure 41. It is also possible to not join both members within a range of at least 1 mm from the periphery. When the top sheet 26 and the leak-proof sheet 27 are joined to each other along the outer peripheral edge of the absorbent structure 41, when the diaper 1 is used, the top sheet 26 and the leak-proof sheet 27 are accidentally peeled off. Can be prevented. In addition, when the top sheet 26 and the leak-proof sheet 27 are not joined within a range of at least 1 mm from the outer peripheral edge of the absorbent structure 41, the outer peripheral edge of the absorbent structure 41 formed by a nonwoven fabric, in particular, the extended portion 44 It can suppress that an outer periphery becomes hard with a hot-melt-adhesive or heat welding, and irritate | stimulates a wearer's skin.

  In addition, the skin surface of the leak-proof sheet 27 extending to the outer sides of the absorbent core 46 in the longitudinal direction Y and the non-skin surface of the top sheet 26 define the core non-existing area 49 included in the extended portion 44 in the lateral direction X. It is preferable to join each other in a joint region 32 that extends continuously. In this manner, the body fluid absorbent material 47 contained in the absorbent core 46 can be enclosed in the absorbent structure 41 by joining the top sheet 26 and the leak-proof sheet 27 to each other in the joint region 32. The joining of the top sheet 26 and the leak-proof sheet 27 in the joining region 32 can be performed using a hot melt adhesive or the above-described known heat welding means. The joining region 32 can be disposed along the outer peripheral edge of the core both end portions 51 located at both ends of the absorbent core 46 in the longitudinal direction Y. In the present embodiment, the joining region 32 that joins the top sheet 26 and the leak-proof sheet 27 is included in the region where the first and second sheet members are joined in the core non-existing region 49.

  Referring to FIGS. 2 and 3, the absorbent structure 41 has the front and rear belts 14, 43 with the non-skin surfaces of the front and rear end regions 42, 43 joined to the skin surfaces of the front and rear belts 14, 15. Orthogonal to 15. The extending portions 44 included in each of the front end region 42 and the rear end region 43 of the absorbent structure 41 extend in the longitudinal direction Y beyond the front and rear waist upper edges 16 and 17 of the front and rear belts 14 and 15. Therefore, when the front and rear belts 14 and 15 are joined at the seam portion 29 to form the pant-type diaper 1, the extended portion 44 protrudes from the front and rear waist upper edges 16 and 17 in a convex shape. When the pant-type diaper 1 is worn, the absorbent structure 41 can be appropriately fitted to the wearer by effectively applying force to the absorbent structure 41 by grasping and pulling up the extension portion 44.

  Here, when the pants-type diaper 1 is worn, the absorbent structure 41 can be pulled up by grasping both sides of the front and rear belts 14 and 15 instead of the extended portion 44. However, when both sides of the front and rear belts 14 and 15 are gripped, the dimension in the lateral direction X of the extended portion 44 is smaller than the lateral X dimension of the front and rear waist upper edges 16 and 17. The side portions are pulled up before the extending portion 44. For this reason, it is difficult to raise the absorption structure 41 to an appropriate position to fit the wearer, and the absorption structure 41 may be pulled up or down. On the other hand, in this invention, since force can be directly applied to the absorption structure 41 from the extension part 44, there is no excess and deficiency in the raising of the absorption structure 41, and it can fit a wearer appropriately. Thus, the present invention is included in the front and rear belts 14 and 15 included in the front and rear waist regions 11 and 12 and the crotch region 13 when the front and rear waist regions 11 and 12 and the crotch region 13 of the diaper 1 are orthogonal to each other. In the case of a so-called three-piece type in which the absorbent structure 41 is orthogonal to the absorbent structure 41, a particularly excellent effect is exhibited in properly fitting the absorbent structure 41 to the wearer.

  The extending portion 44 of the absorbent structure 41 can be provided in either one or both of the front and rear end regions 42 and 43. If the extension part 44 is provided in both the front and rear end regions 42 and 43, the abdomen and the back side of the absorbent structure 41 can be pulled up separately, and the absorbent structure 41 can be more appropriately fitted to the wearer. preferable. The vertical dimension Y of the extended portion 44 is preferably 5 mm or more from the viewpoint of making the extended portion 44 easy to grasp, and the upper limit is not particularly limited, but from a practical viewpoint, it is 50 mm or less. Is preferred. Furthermore, the vertical dimension Y of the extended portion 44 is more preferably 10 mm to 40 mm, and still more preferably 20 mm to 30 mm. The longitudinal dimension Y of the extended portion 44 of each of the front and rear end regions 42 and 43 of the absorbent structure 41 may be the same or different. If the longitudinal direction Y dimensions of the extending portions 44 of the front and rear end regions 42 and 43 of the absorbent structure 41 are made equal, the front and rear waist regions 11 and 12 have the same shape, so that the diaper 1 can be easily manufactured. When the longitudinal Y dimension of the extended portion 44 of the front and rear end regions 42 and 43 of the absorbent structure 41 is varied, the front and rear of the diaper 1 can be easily distinguished.

  In the above-described embodiment, the example in which all of the extending portion 44 is the core non-existing area 49 has been described. However, the absorbent core 46 extends beyond one or both of the front and rear waist upper edges 16 and 17 in the longitudinal direction Y. It is also possible to extend to the extended portion 44 and provide a core non-existing area 49 in a part of the extended portion 44. In this case, for example, as shown in FIG. 4, the absorbent core 46 extends in the longitudinal direction Y beyond the front and rear waist upper edges 16 and 17 to the extending portion 44 and further extends in the longitudinal direction Y. A pair of core non-existing areas 49 that are adjacent to each other and spaced apart from each other in the lateral direction X can also be provided. In this way, by extending the absorbent core 46 beyond the front and rear waist upper edges 16 and 17 to the extending portion 44 in the longitudinal direction Y, it is possible to expand the range in which body fluid can be absorbed by the absorbent core 46. Furthermore, by providing the core non-existence areas 49 on both sides in the lateral direction X of the absorbent core 46 located at the center of the extended portion 44, both sides of the extended portion 44 can be easily grasped, and the operation of pulling up the absorbent structure 41 is performed. Can be easily.

  Moreover, in said 1st Embodiment, the case where the top sheet | seat 26, the leak-proof sheet | seat 27, and the back sheet | seat 28 existed to the terminal of the extension part 44 in the vertical direction Y was demonstrated to the example (refer Fig.5 (a)). ). As a modified example, as shown in FIG. 5 (b), the absorbent structure 41 is formed using only the non-woven fabric constituting the top sheet 26 and the plastic film constituting the leak-proof sheet 27 without providing the back sheet 28. It can also be formed. In this case, as shown in FIG. 6, the nonwoven fabric constituting the top sheet 26 is joined to the skin surface of the plastic film constituting the absorbent core 46 and the leak-proof sheet 27, and the top sheet 26 and the leak-proof sheet 27 are joined. An absorbent core 46 can be enclosed between them. Thus, when it is set as the structure which does not provide the back seat | sheet 28, manufacturing cost can be reduced.

  As yet another modification, as shown in FIG. 5 (c), the leak-proof sheet 27 and the back sheet 28 are arranged on the non-skin surface side of the absorbent core 46, and the leak-proof sheet 27 is configured in the extended portion 44. It is also possible to adopt a configuration that does not include the plastic film to be used. In this case, it is possible to join the opposing surfaces of the top sheet 26 and the back sheet 28 with the same vertical Y dimension of the top sheet 26 and the back sheet 28 existing in the extended portion 44. Thus, since the plastic film which comprises the leak-proof sheet 27 does not exist in the extension part 44, the rigidity of the extension part 44 becomes lower than the case where the leak-proof sheet 27 exists, and irritation | stimulation with respect to a wearer's skin. Is reduced.

  Further, as shown in FIG. 5D, the longitudinal dimension Y of the back sheet 28 is made larger than that of the top sheet 26, and the back sheet 28 extending from the top sheet 26 in the longitudinal direction Y is bent toward the top sheet 26. May be joined. If it does in this way, the part which bent the top sheet 26 roundly will contact a wearer's skin, and the irritation | stimulation with respect to the wearer's skin in the longitudinal direction terminal part 52 of the extension part 44 can be reduced. Moreover, since the extension part 44 of the absorption structure 41 is a part which touches the hand of the person who wears the diaper 1 on the wearer, it is preferable to dispose a nonwoven fabric on the surface to improve the touch. For example, when the leak-proof sheet 27 is only a plastic film, it is preferable to bond a non-woven fabric to the non-skin surface of the leak-proof sheet 27 located at the extended portion 44.

Second Embodiment
In FIG. 7, the diaper 1 of 2nd Embodiment of this application is shown. In the diaper 1 of the second embodiment, the absorbent structure 41 is joined to the single chassis 61 partitioned into the front and rear waist regions 11 and 12 and the crotch region 13, and the front and rear end regions 42 and 43 of the absorbent structure 41. However, it has the extended part 44 extended in the vertical direction Y beyond the front-and-rear waist upper end edges 16 and 17 extended in the horizontal direction X in each of the front-and-back waist regions 11 and 12. FIG. The absorbent structure 41 used in the present embodiment is an absorbent core 46, a top sheet 26 that is a first sheet member that covers the skin surface of the absorbent core 46, and a second sheet member that covers the non-skin surface of the absorbent core 46. A leak-proof sheet 27 is provided. Since the absorption core 46, the top sheet 26, and the leak-proof sheet 27 of this embodiment are the same as those of the first embodiment, detailed description thereof is omitted.

  The chassis 61 has an hourglass shape in which the portion of the crotch region 13 near the front waist region 11 is bound in the lateral direction X. The chassis 61 of the present embodiment includes an inner sheet 62 and an outer sheet 63 having the same shape as the outer shape of the chassis 61, and a front waistline elastic member 64 and a rear waistline elastic member joined in an extended state between the inner and outer surface sheets 62 and 63. 65 and a leg-hole elastic member 66. The front and rear waistline elastic members 64 and 65 extend in the lateral direction X in each of the front and rear waist regions 11 and 12, and the leg periphery elastic member 66 extends from the side edge 68 of the rear waist region 12 toward the crotch region 13. Is traversed in the transverse direction X. The inner and outer surface sheets 62 and 63 are each made of a single nonwoven fabric or a combination of a plurality of nonwoven fabrics, and the front and rear waistline elastic members 64 and 65 and the leghole elastic members 66 are made of a plurality of elastic yarns.

  The diaper 1 of the present embodiment has a pair of seam portions 29 extending in the longitudinal direction Y by overlapping the side edge 67 of the front waist region 11 and the side edge 68 of the rear waist region 12, and hot-melt adhesive or heat welding. By joining together, a pants shape is obtained. When the diaper 1 is made into a pants shape, the extended portion 44 of the absorbent structure 41 protrudes in the longitudinal direction Y beyond the front and rear waist upper edges 16 and 17 of the front and rear waist regions 11 and 12 as in the first embodiment. Extends (not shown).

  When the diaper 1 is worn, the absorbent structure 41 can be appropriately fitted to the wearer by directly applying force to the absorbent structure 41 by grasping and pulling up the extended portion 44. When the diaper 1 is worn, the absorbent structure 41 can be pulled up by grasping both sides of the front and rear waist upper edges 16 and 17 instead of the extended portion 44. However, when both sides of the front and rear waist upper edges 16 and 17 are gripped, members such as nonwoven fabric and elastic yarn are interposed between the front and rear waist upper edges 16 and 17 of the front and rear waist regions 11 and 12 and the absorbent structure 41. The force can be transmitted only indirectly to the absorption structure 41, and the absorption structure 41 is not always lifted to a desired position. In this invention, since force can be directly applied to the absorption structure 41 from the extension part 44, the absorption structure 41 can be easily pulled up to a desired position and can fit a wearer appropriately.

  Although the present invention has been described above, the present invention is not limited to the above-described embodiment and its modifications, and can be implemented with various modifications. For example, the case where the extended portion 44 is integral with the first and second sheet members that wrap the absorbent core 46 has been described as an example. Instead of this, the extending portion 44 can be formed of a sheet material separate from the first and second sheet members that wrap the absorbent core 46. Moreover, although the case where the longitudinal direction Y dimension of the back sheet 28 and the leak-proof sheet 27 was the same was demonstrated to the example, the longitudinal direction Y dimension of the back sheet 28 and the leak-proof sheet 27 may differ. Furthermore, the shape of the absorbent structure 41 is not limited to a rectangle, and may be an oval shape so that, for example, the extended portion 44 has a rounded shape.

  In each of the above-described embodiments, bonding is performed using a hot melt adhesive unless otherwise specified. However, bonding may be performed by heat welding such as heat sealing or ultrasonic welding. In addition to the materials disclosed in the specification of the present application, various known materials that are commonly used in the technical field to which the present invention belongs can be used without limitation for the respective components constituting the diaper 1. In the specification and claims of this application, the terms “first” and “second” are used merely to distinguish similar elements, positions, and the like.

The disclosure related to the wearing article of the present invention described above can be organized into at least the following matters.
In the crotch region, which has a longitudinal direction and a lateral direction, a skin surface facing the wearer's skin and a non-skin surface on the opposite side, and is located between the front waist region, the rear waist region, and the front and rear waist region The front waist region and the rear waist region are respectively parallel to each other in the longitudinal direction, with an absorbent structure that extends from the crotch region to the front and rear waist region. The side edges of the front waist region and the side edges of the rear waist region are joined together, and the absorbent structure covers the absorbent core and the skin surface of the absorbent core. A pants-type disposable wearing article comprising a sheet member and a second sheet member covering the non-skin surface of the absorbent core, wherein the absorbent structure extends from at least one of the front and rear waist regions beyond the front and rear waist upper edges. Has an extension that extends to The wearing article is characterized in that the lateral dimension of the extended portion is smaller than the lateral dimension of the front and rear waist upper edge.

The present invention related to the wearing article disclosed in the above paragraph 0036 can include at least the following embodiments. The embodiments can be adopted separately or in combination with each other.
(1) The absorption structure has an extending portion that extends in the longitudinal direction from both of the front and rear waist regions beyond the front and rear waist upper edge.
(2) In the absorbent structure, the vertical dimension of the extending part extending from the front waist region is equal to the vertical dimension of the extending part extending from the rear waist region.
(3) In the absorbent structure, the vertical dimension of the extending part extending from the front waist region is different from the vertical dimension of the extending part extending from the rear waist region.
(4) At least a part of the extended portion of the absorbent structure has a core non-existing area where the absorbent core is not disposed between the first sheet member and the second sheet member.
(5) The absorbent structure has a pair of absorber side edges extending in the vertical direction crossing the extension part, and the extension part is adjacent to each of the absorber side edges and spaced apart from each other in the lateral direction. A core non-existing area is arranged.
(6) The first and second sheet members included in the core non-existing region are joined to each other.
(7) The first and second sheet members are joined to each other in the joining region extending in the lateral direction in the core non-existing region of the absorbent structure.
(8) The vertical dimension of the extended portion is 5 mm or more.
(9) A nonwoven fabric is arrange | positioned at least on the non-skin surface of the extension part.
(10) Each of the front and rear waist regions includes a front belt and a rear belt that extend in the lateral direction and are spaced apart from each other in the longitudinal direction, the front and rear belts have front and rear waist upper end edges extending in the lateral direction, and the longitudinal direction in the crotch region The front end region and the rear end region located at both longitudinal ends of the absorbent structure are respectively joined to the lateral center of the front and rear belts, and the side edges of the front belt and the rear belt The side edge portions are joined to each other to form a waistline opening edge by the front and rear waist upper end edges, and the absorbent structure has an extending portion that extends in the longitudinal direction from at least one of the front and rear belts beyond the front and rear waist upper end edges.

1 Diaper (disposable wearing article)
11 front waist region 12 rear waist region 13 crotch region 14 front belt 15 rear belt 16 front waist upper edge 17 rear waist upper edge 18 front waist lower edge 19 rear waist lower edge 20 side edge 21 of front belt side edge of rear belt Part 22 Trunk opening edge 23 Leg opening edge 24 Front sheet material 25 Rear sheet material 26 Top sheet (first sheet member)
27 Leak-proof sheet (second sheet member)
28 Back sheet 29 Seam part 30 Waist elastic member 31 Side extension part 32 Joining area 41 Absorption structure 42 Absorption structure front end area 43 Absorption structure rear end area 44 Extension part 45 Absorber side edge 46 Absorption core 47 Body fluid absorbing material 48 Liquid permeable sheet-like member 49 Core non-existing area 51 Both ends 52 of core Extension end portion 61 Chassis 62 Inner sheet 63 Outer sheet 64 Front waistline elastic member 65 Rear waistline elastic member 66 Leg circumference elasticity Member 67 Front waist region side edge 68 Rear waist region side edge X Horizontal direction Y Vertical direction

FIG. 2 is a plan view of the diaper 1 when the front and rear belts 14 and 15 are unbonded in the seam portion 29 of the pant-type diaper 1 of FIG. As shown in FIG. 2, the front belt 14 and the rear belt 15 of the diaper 1 are rectangular with the same shape and the same size, and are separated from each other in the vertical direction Y and extend in the horizontal direction X. The front belt 14 and the rear belt 15 are respectively a front waist upper edge 16 and a front waist lower edge 18 that extend in parallel with each other in the lateral direction X, and a rear waist upper edge 17 and a rear waist lower edge that extend in parallel with each other in the lateral direction X. An edge 19 and a pair of side edge portions 20 of the front belt 14 and a pair of side edge portions 21 of the rear belt 15 extending in parallel with each other in the longitudinal direction Y are provided. The absorption structure 41 is also rectangular, and includes a front end region 42 and a rear end region 43 located at both ends of the vertical direction Y, and a pair of absorber side edges 45 that intersect the front end region 42 and the rear end region 43 and extend in the vertical direction Y. Have The front end region 42 and the rear end region 43 of the absorbent structure 41 are joined to the laterally central portions of the front and rear belts 14 and 15, respectively. A pair of seam portions 29 extend in the longitudinal direction Y along the side edge portions 20 and 21 of the front and rear belts 14 and 15, and the skin of the side edge portions 20 and 21 of the front and rear belts 14 and 15 in the pair of seam portions 29. The surfaces are faced to each other and bonded by a known heat welding means such as heat sealing or ultrasonic welding. As a result, the waistline opening edge 22 is formed by the front and rear waist upper edges 16 and 17, and a pair is formed by the pair of absorber side edges 45 of the absorbent structure 41 and the front and rear waist lower edges 18 and 19 of the front and rear belts 14 and 15. The leg periphery opening edge 23 is formed (see FIG. 1).

The present invention related to the wearing article disclosed in the above paragraph 0036 can include at least the following embodiments. The embodiments can be adopted separately or in combination with each other.
(1) The absorption structure has an extending portion that extends in the longitudinal direction from both of the front and rear waist regions beyond the front and rear waist upper edge.
(2) In the absorbent structure, the vertical dimension of the extending part extending from the front waist region is equal to the vertical dimension of the extending part extending from the rear waist region.
(3) In the absorbent structure, the vertical dimension of the extending part extending from the front waist region is different from the vertical dimension of the extending part extending from the rear waist region.
(4) At least a part of the extended portion of the absorbent structure has a core non-existing area where the absorbent core is not disposed between the first sheet member and the second sheet member.
(5) The absorbent structure has a pair of absorber side edges extending in the vertical direction crossing the extension part, and the extension part is adjacent to each of the absorber side edges and spaced apart from each other in the lateral direction. A core non-existing area is arranged.
(6) The first and second sheet members included in the core non-existing region are joined to each other.
(7) The first and second sheet members are joined to each other in the joining region extending in the lateral direction in the core non-existing region of the absorbent structure.
(8) The vertical dimension of the extended portion is 5 mm or more.
(9) A nonwoven fabric is arrange | positioned at least on the non-skin surface of the extension part.
(10) Each of the front and rear waist regions includes a front belt and a rear belt that extend in the horizontal direction and are spaced apart from each other in the vertical direction, the front and rear belts have front and rear waist upper edges extending in the horizontal direction, and the longitudinal direction in the crotch region The front end region and the rear end region located at both longitudinal ends of the absorbent structure are respectively joined to the lateral center of the front and rear belts, and the side edges of the front belt and the rear belt The side edge portions are joined to each other to form a waistline opening edge by the front and rear waist upper end edges, and the absorbent structure has an extending portion that extends in the longitudinal direction from at least one of the front and rear belts beyond the front and rear waist upper end edges.

Claims (11)

A crotch having a longitudinal direction and a lateral direction, a skin surface facing the wearer's skin and a non-skin surface on the opposite side, and located between the front waist region, the rear waist region, and the front and rear waist regions in the longitudinal direction A front waist upper end edge and a rear waist upper end edge, each of which includes an absorbent structure that extends from the crotch region to the front and rear waist regions, and wherein the front waist region and the rear waist region extend in the lateral direction, respectively. A pair of side edges extending in parallel with each other in the longitudinal direction, the side edges of the front waist region and the side edges of the rear waist region are joined, and the absorbent structure is an absorbent core A pants-type disposable wearing article comprising: a first sheet member that covers the skin surface of the absorbent core; and a second sheet member that covers the non-skin surface of the absorbent core,
The absorbent structure has an extending portion that extends in the longitudinal direction from at least one of the front and rear waist regions beyond the front and rear waist upper edge,
The wearing article, wherein the lateral dimension of the extended portion is smaller than the lateral dimension of the front and rear waist upper edge.   The wearing article according to claim 1, wherein the absorbent structure includes the extending portion that extends from both the front and rear waist regions beyond the front and rear waist upper end edges in the longitudinal direction.   The wearing article according to claim 2, wherein in the absorbent structure, a longitudinal dimension of the extending part extending from the front waist region is equal to a longitudinal dimension of the extending part extending from the rear waist region.   The wearing article according to claim 2, wherein in the absorbent structure, a longitudinal dimension of the extending part extending from the front waist region is different from a longitudinal dimension of the extending part extending from the rear waist region.   The at least part of the extended portion of the absorbent structure has a core non-existing region where the absorbent core is not disposed between the first sheet member and the second sheet member. The wearing article of any one of these.   The absorbent structure has a pair of absorber side edges that intersect the extension portion and extend in the longitudinal direction, and the extension portion is adjacent to each of the absorber side edges and spaced apart from each other in the lateral direction. The wearing article according to claim 5, wherein at least a pair of the core non-existing areas are arranged.   The wearing article according to claim 5 or 6, wherein the first and second sheet members included in the core non-existing region are joined to each other.   The wearing article according to claim 7, wherein the first and second sheet members are joined to each other in a joining area extending in the lateral direction through the core non-existing area of the absorbent structure.   The wearing article according to any one of claims 1 to 8, wherein the longitudinal dimension of the extending portion is 5 mm or more.   The wearing article according to any one of claims 1 to 9, wherein a nonwoven fabric is disposed on at least the non-skin surface of the extended portion. Each of the front and rear waist regions includes a front belt and a rear belt that extend in the lateral direction and are spaced apart from each other in the longitudinal direction,
The front and rear belts have the front and rear waist upper end edges extending in the lateral direction,
The absorbent structure that extends in the longitudinal direction is included in the crotch region, and a front end region and a rear end region that are located at both ends in the longitudinal direction of the absorbent structure are joined to a lateral center portion of the front and rear belts, respectively. The side edge portion of the front belt and the side edge portion of the rear belt are joined together to form a waistline opening edge by the front and rear waist upper end edges,
The wearing article according to any one of claims 1 to 10, wherein the absorbent structure has the extending portion that extends from at least one of the front and rear belts beyond the front and rear waist upper end edges in the longitudinal direction.

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