JPH11148U - Disposable pants-type wearing article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily tear a joint at both side edges of a front and rear waist region of a disposable pants-type wearing article so that the pants can be easily taken off. SOLUTION: Both side edges of front and rear waist regions 10 and 11 are joined at joining portions 14A arranged intermittently in the longitudinal direction.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a disposable pants-type wearing article, and more particularly, to a disposable pants-type wearing article in which laterally opposite sides of a disposable pants-type wearing article are intermittently joined.

[0002]

[Prior art]

 Generally, training pants and pants-type disposable diapers as disposable wearing articles are laminated panels consisting of a liquid-permeable inner sheet and a liquid-impermeable outer sheet. The laminated panel thus formed has a basic configuration, and elastic members are attached to the waist circumference and the leg circumference of the laminated panel in order to obtain a fit to the body while wearing and a function of preventing leakage of body fluid. In general, such an article is formed by folding the laminated panel in two so that the inner sheet is located inside, and joining opposite sides of the front and rear waist regions to form a trunk opening and a pair of leg openings. Is formed.

[0003]

[Issues to be solved by the invention]

 In the disposable pants-type wearing article, the joining between the front waistline region and the rear waistline region is performed by one or a plurality of adhesive lines continuous from the trunk opening to the leg opening. However, in such articles, if the excrement is excrement from the wearer, and the excrement is pulled down to the wearer's toe when removing the excrement, if the excrement is stool, the stool is reduced in the process of lowering the excrement. It is not unusual for it to adhere to parts of the body that did not adhere during defecation. In order to avoid such a situation, as already known, it is preferable that the joined front waist region and the rear waist region are torn apart so as to be separated.

As described above, in a conventional article, the joining is performed by a continuous bonding line, and therefore, the tearing operation is not easy. Further, in such a continuous bonding line, the opposite side portion of the article is in a sealed state, and air permeability cannot be obtained.

An object of the present invention is to mainly provide a joining configuration of the opposed side portions of the article, which can be easily torn in the opposite side but is not inadvertently torn during wearing.

[0006]

[Means for Solving the Problems]

 An article according to the present invention for solving the above-mentioned problem has a laminated panel including at least a liquid-permeable inner sheet and a liquid-impermeable outer sheet, and the laminated panel is arranged such that the inner sheet is located inside. Are folded over, and the laterally opposed sides of the front waist region and the rear waist region of the laminated panel are outwardly joined together, leaving their outer edges, respectively, at the trunk opening and the leg opening, respectively. It is intended for disposable pants-type wearing articles provided with elastic members.

In the present invention, in the configuration according to the object, the joining of the laterally opposed side portions of the front and rear waist region includes a joining region having a predetermined width dimension extending in a vertical direction of the laterally opposed side portion. And the joining area is constituted by a large number of joining parts arranged at predetermined intervals in the longitudinal direction of the joining area, wherein the width of the joining area is 2 to 20 mm, A height dimension is 0.5 to 15 mm, and the joining portion has a height dimension that is longer in a direction intersecting the longitudinal direction of the joining area and smaller than a width dimension of the joining area. And

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings for a disposable diaper as an example thereof.

In FIG. 1, the diaper 1 includes a liquid-permeable inner sheet 2, a liquid-impermeable outer sheet 3, an absorber 4, a waist elastic member 5, and a leg elastic member 6. Gathers are formed at the periphery of each of the trunk opening 7 and the leg opening 8 by the contracting action of the elastic members 5 and 6. In the laterally opposed side portion 9 of the diaper 1, the side portions 10A and 11A of the front waistline region 10 and the rear waistline region 11 are integrally joined at a joint region. The absorber 4 is not always necessary for implementing the present invention.

In FIG. 2, the diaper 1 includes a laminated panel 1 ′ formed by an inner sheet 2, an outer sheet 3, and an absorber 4 interposed therebetween. The inner sheet 2 is made of a thermo-crimped thermoplastic fiber, is a non-woven fabric in which the fibers are entangled under the action of a high-pressure water flow, and has elasticity and elasticity. The absorber 4 is preferably made of a shaped product of ground pulp containing 5 to 15% by weight of a superabsorbent polymer. The outer sheet 3 has a two-layer structure and is made of a liquid-impervious sheet 16 made of polyethylene thermoplastic elastomer and having high elasticity and elasticity, and a thermo-crimped thermoplastic fiber. Then, the elastic nonwoven fabric 17 in which the fibers are entangled is intermittently joined with a hot melt adhesive. The liquid impermeable sheet 16 faces the inner sheet 2 via the absorber 4, and the nonwoven fabric 17 becomes the outer surface of the diaper 1. The liquid impervious sheet 16 imparts liquid impermeability to the outer sheet 3 as a matter of course. The nonwoven fabric 17 gives the outer surface of the diaper 1 a cloth-like texture. Further, by intermittently joining the liquid impermeable sheet 16 and the nonwoven fabric 17 to each other, the strength of the outer sheet 3 is improved without impairing the elasticity. On the liquid-impermeable sheet 16 of the outer sheet 3, a waist elastic member 5 made of a plurality of thread rubbers, and a leg elastic member 6 made of a plurality of thread rubbers and consisting of front and rear members 6A and 6B are provided. Are bonded with a hot melt adhesive under elongation. The front and rear members 6A and 6B are hardly extended in the crotch region 15 between intersections where they cross each other. The elastic members 5, 6 are continuously supplied along the flow direction in the continuous production line of the diaper 1, and run across the width of the diaper 1, and both cut edges thereof are laterally opposed. The side portion 9 (see FIG. 3) faces the side edge of the outer sheet 3.

The inner sheet 2 and the outer sheet 3 have the same outer shape, extend outward from the outer periphery of the absorber 4, and are joined to each other at the extended portions. The laminate 1 ′ is bisected in the vertical direction and folded so that the inner sheet 2 is on the inside, and the laterally opposed sides 10 A and 11 A of the front waistline region 10 and the rear waistline region 11 are overlapped, The body opening 7 and a pair of leg openings 8 are formed by integrally joining along the joining area 14 located leaving the outer side edges. In the diaper 1 thus configured, the thread rubbers 5 and 6A on the front waistline region 10 substantially overlap with the thread rubbers 5 and 6B on the rear waistline region, respectively. Is substantially continuous in the circumferential direction.

In FIG. 3, the joint region 14 extends in the longitudinal direction of the side portion 9 from the trunk opening 7 to the leg opening 8, and the materials of the front and rear waist regions 10 and 11 are fused by ultrasonic welding. It is constituted by alternately repeating the joined portion 14A and the non-joined portion 14B. Each of the joints 14A is long in a direction intersecting the longitudinal direction of the joint area 14, the width of the diaper 1 in the lateral direction is about 5 mm, the height of each joint 14A is about 1 mm, The height dimension of 14B (the dimension between two joining sections 14A which are adjacent to each other in the longitudinal direction of the joining area 14) is about 1.5 mm, and such joining sections 14A and non-joining sections 14B are alternately arranged. Thus, an intermittent pattern is formed, and most of the joint area 14 is formed. As is clear from the figure, the joint portion 14A is inclined near the leg elastic member 6. Further, the elastic members 5 and 6 are located at the non-joining portion 14B where the ultrasonic wave is not applied in the joining region 14. Further, at the upper end and / or lower end of the joining area 14, non-joining parts 14E and 14E ', which are relatively larger than the non-joining part 14B, are provided. The rear waist area and the rear waist area can be torn along the joint area 14.

The joint section 14A has the above-described dimensions as an optimal example, but the length of the diaper 1 in the lateral direction (the width of the joint area 14) is 2 to 20 mm, and the height is 0.5 to 15 m. m, and the total occupied area in the joint area 14 extending from the trunk opening 7 to the leg opening 8 can be 40 to 80%. If the occupied area of the joint 14A is less than 40%, the strength of the joint area 14 may be insufficient, and if it is more than 80%, the required air permeability cannot be obtained through the non-joint 14B. There is.

When the pants-type diaper 1 is to be removed from the wearer, the front waistline region 10 and the rear waistline region 11 are pinched at the outer edge of the side portion 9 and pulled in the front-rear direction facing each other. , Can easily be torn along the joint area 14. In addition, the sense of resistance to tearing at this time is such that the joining portion 14A having at least the same length as the width of the joining region 14 intersects the longitudinal direction of the joining region 14, and the non-joining portion 14B is located therebetween. With such an intermittent pattern, it feels as if a zipper is operated, and even if a tear occurs at the upper end or the lower end of the joint area 14, the tear force is very rarely continuously transmitted.

In FIG. 4, in order to facilitate holding each of the front waistline region 10 and the rear waistline region 11, a pin extending outward from the upper end of each of the side portions 10A, 11A. Holders 20A and 20B are provided. The holding portions 20A, 20B can be provided so as to be integral with the inner sheet 2 and / or the outer sheet 3, but they can also be provided as separate members.

In FIG. 5, the inner sheet 2 is made of an elastic stretch sheet which is a nonwoven fabric made of thermoplastic fibers which are heat-crimped in the same manner as in the above-described embodiment and which are entangled with the fibers under the action of a high-pressure water flow. The outer sheet 3 is constituted by a single layer of an elastically stretchable liquid-impermeable sheet 16 made of a polyethylene thermoplastic elastomer as shown. With this configuration, the manufacturing cost can be lower than that in the above-described embodiment.

[0017]

[Effect of the invention]

 The article according to the present invention has the following effects.

When detaching the worn articles, at least one of the laterally opposed side portions of the front and rear waist regions can be pulled apart in a direction away from each other, so that they can be easily torn along the joint region. This is also easy, and because the large number of joints that make up the joint area extend in a direction that intersects the longitudinal direction of the joint area, i.e., at least as long as the width of the joint area, The joint area has the required joint strength or tear resistance, so that the worn article does not slip off from the body by being inadvertently continuously torn during wearing.

[Brief description of the drawings]

FIG. 1 is a perspective view of a diaper according to the present invention.

FIG. 2 is an exploded perspective view of the diaper of FIG.

FIG. 3 is a partially enlarged view of the diaper of FIG. 1;

FIG. 4 is a partially enlarged perspective view showing another embodiment of the present invention.

FIG. 5 is a perspective view of an outer sheet showing another embodiment of the outer sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Diaper 2 Inner sheet 3 Outer sheet 4 Absorber, 5, 6 Elastic member 9 Lateral facing side part 10 Front waist area 11 Rear waist area 14 Joint area 14A Joint part 14B Non-joint part

Claims (2)

[Utility model registration claims] 1. A laminated panel comprising at least a liquid-permeable inner sheet and a liquid-impermeable outer sheet, wherein the laminated panel is folded so that the inner sheet is located on the inner side, and the laminated panel is positioned in front of the laminated panel. In a disposable pants-type wearing article in which the laterally opposed side portions of the waist region and the rear waist region are joined outwardly toward each other leaving their outer edges, and the torso opening and the leg opening each have an elastic member, The joining of the laterally opposing side portions of the front and rear waist region is performed along a joining region having a predetermined width extending in the longitudinal direction of the laterally opposing side portion, and the joining region is formed in a vertical direction of the joining region. The width of the bonding area is 2 to 20 mm, and the height of the bonding area is 0.5 to 15
mm, wherein the joint is longer in a direction intersecting the longitudinal direction of the joint area and has a height dimension smaller than a width dimension of the joint area. 2. The article according to claim 1, wherein a total area occupied by the joints from the trunk opening to the leg openings is 40 to 80%.