JPH087850Y2 - Disposable pants-type wearing article - Google Patents

Description

TECHNICAL FIELD The present invention relates to a disposable pants-type wearing article, and more particularly, to a disposable pants-type wearing article in which laterally opposed side portions of the disposable pants-type wearing article are joined intermittently. Regarding goods.

(Prior Art) Generally, training pants or pants-type disposable diapers as disposable wearing articles are laminated panels composed of a liquid-permeable inner surface sheet and a liquid-impermeable outer surface sheet, especially in the case of a diaper, between them. A laminated panel having an absorbent body interposed therebetween has a basic structure, and elastic members are attached to each of the waist and legs of the laminated panel in order to obtain a fit property to the body while wearing and a function of preventing leakage of body fluid. There is. In addition, in general, such an article is formed by folding the laminated panel in two so that the inner sheet is located inside and joining the opposite side portions of the front and rear body around the waist to form a pair of a body opening and a body opening. A leg opening is formed.

(Problems to be solved by the invention) In the disposable pants-type wearing article, the front body and the back body are joined 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 excreted from the wearer, and it is pulled down to the wearer's toes when it is removed, if the excrement is stool, the stool will be excreted in the process of pulling it down. Occasionally, it often attaches to parts of the body that were not attached. In order to avoid such a situation, as is known, it is preferable to tear and remove the joined front body and back body so as to separate them.

As described above, in the conventional article, the joining is made by the continuous adhesive line, so that the tearing operation is not easy. Further, such a continuous adhesive line does not provide air permeability because the opposite side parts of the article are in a sealed state.

The present invention is mainly directed to the operation of tearing the opposite side portion of an article, while the tearing operation is prevented from being inadvertently torn during wearing, and the air permeability of the opposite side portion can be obtained. The joint structure is an issue.

(Means for Solving the Problem) An article according to the present invention for solving the above problem has a laminated panel including at least a liquid-permeable inner surface sheet and a liquid-impermeable outer surface sheet, and the inner surface sheet is an inner side. The laminated panel is folded so as to be located at a position, and the laterally opposed side portions of the front body and the back body of the laminated panel are joined outwardly in the shape of a palm, leaving their outer edges, respectively, and the trunk opening and the leg are joined together. The present invention is intended for a disposable pants-type wearing article having an elastic member in each opening.

According to the present invention, in the structure according to the above object, the laterally opposite side portions of the front and rear body are joined along a joining area having a predetermined width dimension extending in the longitudinal direction of the laterally opposite side portions. That, and the bonding area is configured by a large number of bonding lines arranged at a predetermined interval in the vertical direction of the bonding area, the bonding line is long in a direction intersecting the vertical direction of the bonding area, and It has a thickness dimension smaller than a width dimension of the joining region.

Preferably, the width dimension of the joint area is 2 to 10 mm, the thickness dimension of the joint line is 0.5 to 5 mm, and the total area occupied by the joint line from the trunk opening to the leg opening is 50. ~ 80%.

Preferably, each of the elastic members is interposed between the inner surface sheet and the outer surface sheet, and the two longitudinally opposite ends of the elastic members are adjacent to each other in the longitudinal direction of the joining area. Located between the lines.

Preferably, the laterally opposite side portions are provided with gripping portions extending to the outside thereof.

(Operation) The worn article can be easily detached from the wearer by tearing the front body and the back body along the joint area. The tearing operation gives a moderate resistance as if opening the zipper. In addition, the air permeability of the inside and outside of the article can be obtained through the non-joint portion between the joining lines.

(Example) With reference to the drawings, a disposable diaper as an example of the article according to the present invention will be described below.

In FIG. 1, a diaper 1 is a liquid-permeable inner sheet 2
And liquid-impervious outer sheet 3 and absorber 4 (see FIG. 2)
And a waist elastic member 5 and a leg elastic member 6. Gathers are formed by the contracting action of the elastic members 5 and 6 at the peripheral edges of the trunk opening 7 and the leg openings 8. On the laterally opposite sides 9 of the diaper 1, the front body 10 and the back body 10
Each side portion 10A, 11A of 11 is integrally joined in a joining area 14. The absorber 4 is not always necessary for implementing the present invention.

In FIG. 2, the diaper 1 is composed of a laminated panel 1'formed by an inner sheet 2, an outer sheet 3, and an absorber 4 interposed therebetween. The inner surface sheet 2 is a non-woven fabric composed of thermo-crimped thermoplastic fibers, in which the fibers are entangled under the action of a high-pressure water stream, and has elastic stretchability. The absorber 4 is preferably made of a crushed pulp model containing a superabsorbent polymer in an amount of 5 to 15% by weight. The outer sheet 3 has a two-layer structure and comprises a liquid-impervious sheet 16 which is made of polyethylene-based thermoplastic elastomer and is highly elastic and elastic, and thermo-crimped thermoplastic fibers, which are subjected to the action of a high-pressure water stream. The stretchable nonwoven fabric 17 entangled with is intermittently joined by a hot melt adhesive.
The liquid-impervious sheet 16 faces the inner sheet 2 with the absorbent body 4 in between, and the nonwoven fabric 17 serves as 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 non-woven fabric 17 gives a cloth-like feel to the outer surface of the diaper 1. In addition, the liquid impermeable sheet 16 and the non-woven fabric 17 are intermittently joined to each other to form the outer sheet 3
Has improved strength without impairing stretchability. Outer sheet 3
On the liquid-impervious sheet 16, 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 made of front and rear members 6A and 6B are stretched. Bonded underneath with hot melt adhesive. Front and rear members 6A, 6
In the crotch region 15, B is hardly stretched between the intersections intersecting each other. The elastic members 5 and 6 are continuously supplied along the flow direction in the continuous production line of the diaper 1, and run across the width direction of the diaper 1, and both cut edges thereof are laterally opposite side portions. 9 (see FIG. 3),
It faces the side edge of the outer sheet 3.

The inner surface sheet 2 and the outer surface sheet 3 have the same outer shape, extend outward from the outer periphery of the absorbent body 4, and are joined to each other at the extending portion. The laminated panel 1 ′ is divided into two parts in the longitudinal direction and folded so that the inner sheet 2 is on the inside, and the laterally opposed side parts 10 A and 11 A of the front body 10 and the back body 11 are respectively opposed.
A joint area that is located by overlapping and leaving their outer edges.
The body opening 7 and the pair of leg openings 8 are formed by integrally joining along the line 14. In the diaper 1 thus constructed, the thread rubbers 5 and 6A on the front body 10 side are the back body.
Each of the rubber threads 5 and 6B on the 11th side substantially overlaps with each other, and is substantially continuous in the circumferential direction in each of the trunk opening 7 and the leg opening 8.

In FIG. 3, the joining area 14 extends in the longitudinal direction of the side portion 9 from the trunk opening 7 to the leg opening 8 and is joined to the joining line 14A in which the materials of the front and rear bodies 10, 11 are fused by ultrasonic welding. , And the non-bonding portion 14B are alternately repeated.
Each of the joining lines 14A is long in the direction intersecting the longitudinal direction of the joining area 14, the width dimension of the diaper 1 in the lateral direction is about 5 mm, the thickness dimension of each joining line 14A is about 1 mm, and the non-joint portion 14B
Is about 1.5 mm in height (dimension between two joining lines 14A adjacent to and facing each other in the longitudinal direction of the joining area 14), and by intermittently arranging such joining lines 14A and non-joining portions 14B. As shown in the drawing, the leg elastic members 6 form a pattern and form most of the joint area 14.
In the vicinity of, the joining line 14A is inclined. Further, the elastic members 5 and 6 are located at the non-bonding portion 14B in the bonding region 14 where the ultrasonic waves do not act. In addition, at the upper end and / or the lower end of the joint area 14, the non-joint portion 14B
The non-bonded portions 14E and 14E ′ which are relatively larger than
By grasping this, the front body and the back body can be particularly easily torn along the joint region 14.

The joining line 14A has the above-mentioned dimension as an optimum example, but the length dimension (width dimension of the joining region 14) of the diaper 1 in the lateral direction is 2
.About.10 mm, the thickness dimension is 0.5 to 5 mm, and the total area occupied in the joint region 14 from the trunk opening 7 to the leg opening 8 can be 50 to 80%. If the occupying area of the joining line 14A is 50% or less, the strength of the joining area 14 is insufficient and
If it is more than%, the required air permeability cannot be obtained through the non-bonded portion 14B.

When the pants-type diaper 1 can be detached from the wearer, if the front body 10 and the back body 11 are respectively grasped at the outer edge of the side portion 9 and pulled in the front-back direction where they are opposed to each other, the joining area 14
Can be easily torn along. Moreover, the resistance to tearing at this time is that the joining line 14A having at least the same length dimension as the width dimension of the joining area 14 intersects the longitudinal direction of the joining area 14, and the non-joining portion 14B is located between them. The intermittent pattern makes the user feel as if he / she operates a zipper, and even if a tear occurs at the upper end or the lower end of the joint area 14, it is extremely unlikely that the tear force is continuously transmitted.

In FIG. 4, in order to facilitate the grasping of each of the front body 10 and the back body 11, the grasping portions 20A, 20B extending outward from the upper portions of the respective side portions 10A, 11A. Is provided. The grip portions 20A and 20B can be provided so as to be integrated with the inner sheet 2 and / or the outer sheet 3, but they can be provided as separate members.

In FIG. 5, the inner surface sheet 2 is composed of a thermoplastic fiber which is heat-crimped in the same manner as in the above embodiment, and is constituted by an elastic stretchable sheet which is a non-woven fabric in which the fibers are entangled under the action of a high-pressure water stream. The elastic stretchable liquid-impervious sheet 16 made of a thermoplastic polyethylene elastomer is shown in the figure.
It is composed of a single layer. With this configuration, the manufacturing cost can be reduced more than that in the case of the above-mentioned embodiment.

(Effects of the Invention) The article according to the present invention has the following effects.

(1) When the worn articles are detached, by pulling at least one of the laterally opposite side portions of the front and rear bodies in a direction away from each other, they can be easily torn along the joint area, and the detaching operation can also be performed. Since it is easy and a large number of joint lines forming the joint area extend in a direction intersecting the longitudinal direction of the joint area, that is, at least the same dimension as the width dimension of the joint area and the length intersecting the longitudinal direction of the joint area. Since it has a certain degree of strength, the joining area is provided with a required joining strength or tear resistance so that the worn article will not be accidentally continuously torn during wearing and the worn article will not fall off the body (claims 1, 2 ).

(2) Since the joining area is intermittent in the vertical direction and the occupying area of the joining line in the joining area is a given value, the required air permeability inside and outside the article is obtained, and stuffiness inside the article is suppressed. It is also possible (Claims 1 and 2).

(3) The joining by the joining line at the laterally opposite side portions of the front and rear bodies avoids the lengthwise opposite end of the elastic member, in other words, the lengthwise opposite end is the non-joint between the joining lines. Since it is located in the section, the joining is reliable and the work for joining is easy, and the elastic member is arranged so that the ends in the length-opposing direction are not located at the side edges of the front and rear body for joining. It is not necessary to use a special method for mounting (Claim 3).

(4) Since the gripping portions are located at the upper ends of the laterally opposed side portions of the front and rear bodies so as to project outward, the tearing operation is easier (claim 4).

[Brief description of 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. FIG. 4 is a partially enlarged perspective view of a diaper showing another embodiment of the present invention. FIG. 5 is a perspective view of an outer sheet showing another embodiment of the outer sheet. 1 ... diaper, 2 ... inner sheet, 3 ... outer sheet,
4 ... Absorber, 5,6 ... Elastic member, 9 ... Laterally opposed side parts, 10 ... Front body, 11 ... Rear body, 14 ... Joining area, 14A
...... Joining line, 14B …… Non-joint part, 20A, 20B …… Holding part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-207605 (JP, A) Jitsukaihei 2-69906 (JP, U)

Claims (4)

[Scope of utility model registration request] 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 inside, and a predecessor of the laminated panel. In the disposable pants-type wearing article, the laterally opposite side portions of the body and the rear body are joined outwardly in a palm-shape, leaving their outer edges, and elastic members are respectively provided in the trunk opening and the leg opening, Bonding of the laterally opposed side portions of the body is performed along a bonded area having a predetermined width dimension that extends in the longitudinal direction of the laterally opposed side portion, and the bonded area is predetermined in the longitudinal direction of the bonded area. It is composed of a large number of joining lines arranged at intervals, and the joining line is long in a direction intersecting the longitudinal direction of the joining area and has a thickness dimension smaller than the width dimension of the joining area. The article to be. 2. The width dimension of the joint area is 2 to 10 mm, the thickness dimension of the joint line is 0.5 to 5 mm, and the total area occupied by the joint lines from the trunk opening to the leg opening is total. But
The article of claim 1 which is 50-80%. 3. Each of the elastic members is interposed between the inner surface sheet and the outer surface sheet, and the lengthwise opposed ends of the elastic members are respectively two adjacent and opposed to each other in the longitudinal direction of the joint area. The article of claim 1 located between the join lines. 4. The article according to claim 1, wherein a gripping portion projecting outwardly is provided at an upper end portion of the laterally opposite side portions.