JPH11149U - Disposable pants-type wearing article - Google Patents

Abstract

(57) [Problem] To provide a disposable pants-type wearing article that easily tears off joints at both side edges of a front and rear waist region to easily remove the article, and improves fit of the waist region to a body. SOLUTION: Both side edges of a front and rear waist region are intermittently joined at joints arranged in a longitudinal direction thereof, and elastic members are disposed in a waist region and a leg waist region, and a waist region between them.

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 stretch members are attached to the waist circumference and the leg circumference of the laminated panel in order to obtain a fit to a 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 positioned inside, and joining opposing sides of a waist area of the front and rear waist area to form a pair with the body opening. And leg openings.

[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 includes a laminated panel including an inner sheet, an outer sheet, and an absorber interposed therebetween, wherein the laminated sheet is arranged such that the inner sheet is located inside. The panels are folded, and the laterally opposed side portions of the front waistline region and the rear waistline region of the laminated panel are joined outwardly to each other, leaving their outer edges, and the elastically stretched trunk opening is provided. In a disposable pants-type wearing article having a portion and an elastically expanded leg opening, the front and rear waist region between the elastically expanded and contracted body opening and the elastically expanded and contracted leg opening is provided. The elastically expanded and contracted, and the joining of the laterally opposing side portions of the front and rear waist regions is performed along the joining region having a predetermined width dimension extending in the longitudinal direction of the laterally opposing side portion, and the joining region is formed. At predetermined intervals in the longitudinal direction of the joint area It is constituted by a number of junctions and columns, longer in the direction in which the joint intersects the longitudinal direction of the bonding region, and characterized by having a height dimension smaller than the width of the bonding region.

[0007]

Embodiment

 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, a diaper 1 includes a liquid-permeable inner sheet 2, a liquid-impermeable outer sheet 3, an absorber 4, a waist elastic elastic member 5, and a leg elastic elastic member 6. . Gathers are formed around the periphery of each of the trunk opening 7 and the leg opening 8 by being elastically expanded and contracted by elastic elastic members 5 and 6. On the laterally opposed side 9 of the diaper 1, the respective side portions 10 </ b> A, 11 </ b> A of the front waistline region 10 and the rear waistline region 11 are integrally joined at a joint region 14.

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 as a third elastic member, a liquid-impervious sheet 16 made of polyethylene thermoplastic elastomer and having high elasticity and elasticity, and a thermo-crimped thermoplastic fiber. And the elastic non-woven fabric 17 in which the fibers are entangled under the action of a high-pressure water flow is intermittently joined by 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 impermeable 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. In addition, 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. The inner and outer sheets 2 and 3 are elastically expanded and contracted so that the entire diaper 1, particularly the waist area, is fitted to a wearer. On the liquid impermeable sheet 16 of the outer sheet 3, the elastic member 5 made of a plurality of thread rubbers and the 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. Therefore, as described above, the waist region is elastically expanded and contracted, but the resulting elongation stress is strong in the waist and leg openings and weak in the waist region between them. The front and rear members 6A and 6B hardly extend between the intersections that cross each other in the crotch region 15. The elastic 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 in the lateral direction. The opposite 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 the thread rubbers 5 and 6B on the rear waistline region 11, respectively. Each is substantially continuous in the direction around it.

In FIG. 3, the joining area 14 extends in the longitudinal direction of the side part 9 from the trunk opening 7 to the leg opening 8, and the materials of the front and rear waist areas 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 in the non-joined portion 14B where the ultrasonic waves do not act in the joint area 14. Further, at the upper end and / or lower end of the joining area 14, non-joining portions 14E and 14E 'which are relatively larger than the non-joining portion 14B are provided, and if these portions are gripped, the front waistline is particularly easily formed. The region and the rear girth region can also be torn along the joint region 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 detached 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 knob 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 formed of an elastic stretch sheet which is a non-woven 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.

[0016]

[Effect of the invention]

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

When detaching the worn article, at least one of the laterally opposed sides of the front and rear waist area is pulled in a direction away from each other, so that they can be easily torn along the joint area. 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 a required joining strength or tear resistance, so that the worn article does not slip off from the body by being inadvertently continuously torn during wearing.

[0018] Not only the torso and leg openings but also the waist region between them is elastically expanded and contracted, since the elongation stress of the torso and leg openings is made stronger than that of the waist region between them. Fits well around the wearer's waist, and even if the wearer moves relatively hard, the diaper does not slip off or slip off due to delusion.

[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 elastic member 9 Lateral opposing side part 10 Front waist area 11 Rear waist area 14 Joint area 14A Joint part 14B Non-joint part 16 Elastic elastic member

Claims (4)

[Utility model registration claims] 1. A laminated panel comprising an inner sheet, an outer sheet, and an absorber interposed therebetween, wherein the laminated panel is folded so that the inner sheet is located inside, and The laterally opposed side portions of the front waist region and the rear waist region are respectively joined in an outwardly facing palm shape leaving their outer edges, and have an elastically stretched trunk opening and an elastically stretched leg opening. In the disposable pants-type wearing article, the front and rear waist region between the elastically stretched torso opening and the elastically stretched leg opening is elastically stretched,
The joining of the laterally opposed side portions of the front and rear waist region is performed along a joining region having a predetermined width dimension extending in the longitudinal direction of the laterally opposed side portion, and the joining region is formed in the longitudinal direction of the joining region. It is constituted by a large number of joints arranged at predetermined intervals, and the joint is long in a direction intersecting the longitudinal direction of the joint area,
The article has a height dimension smaller than a width dimension of the joining area. 2. The article according to claim 1, wherein the extension stress of the trunk and leg openings is stronger than the extension stress of the front and rear waist regions therebetween. 3. The article according to claim 1, wherein the width of the joint area is 2 to 20 mm, and the height of the joint is 0.5 to 15 mm. 4. The article according to claim 1, wherein the total area occupied by the joints from the trunk opening to the leg openings is 40 to 80%.