JP2001037808A - Throwaway underpants - Google Patents

Abstract

PROBLEM TO BE SOLVED: To particularly enhance the preventive function of side leakage of urine or the like. SOLUTION: An interior sheet 7 addedly provided with an elastic yarn 9 for the leg along a leg hole part 7D is joined to an exterior sheet 6 addedly provided with an elastic yarn 8 for the leg along the leg hole part 6D, so that the elastic yarn 9 for the leg of the interior sheet 7 supplements the broken part of the elastic yarn 8 for the leg of the exterior sheet 6. Thus, the elastic yarns 8, 9 for the leg are addedly provided over the entire region of the leg hole parts 6D and 7D so as not to be broken.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disposable trousers having a significantly improved function for preventing lateral leakage of urine and the like.

[0002]

2. Description of the Related Art Conventionally, as disposable pants, FIG.
(A) As shown in (c), the front abdomen 1A of the exterior sheet 1
A leg hole 1D is provided on both sides of the crotch portion 1C between the rear back portion 1B and the leg hole 1D of the exterior sheet 1 by the leg elastic thread 2 attached along the leg hole portion 1D. A structure in which gathers are formed has been proposed.

[0003] In the disposable pants as described above, in the unfolded state, the elastic yarns 2 for the legs are attached to the outer sheet 1a of the outer sheet 1 in a continuous meandering shape in the lateral direction, and the outer sheet 1a is attached to the inner sheet 1b. Are adhered, and the elastic yarns 2 for legs are interposed between the outer sheet 1a and the inner sheet 1b.
Will be interposed.

[0004] Thereafter, if necessary, an absorber 3 as shown in Fig. 10 (b) is bonded and attached to the inner crotch 1C of the inner sheet 1b, and the front abdomen 1A is separated from the crotch 1C.
After folding in two so that the back part 1B and the back part 1B overlap, the side parts 1c are side-sealed, so that the disposable pants 4 as shown in FIG. 10D can be assembled three-dimensionally.

[0005]

However, in a line for producing the disposable pants 4 side by side and continuously at a high speed, the elastic yarns 2 for the legs are continuously meandered in the lateral direction and are interrupted over the entire area of the leg holes 1D. It is very difficult to attach them so that they do not exist. Even in the example of FIG. 10 (a), a complete break S1 occurs and the leg S does not follow the leg hole 1D (it is shifted inward of the leg hole 1D). Incomplete breaks S2 may occur, and these breaks S1, S2
Has a problem in that it is difficult to effectively prevent lateral leakage of urine or the like since it is difficult to adhere to the wearer.

In addition, since the leg gathers are formed only in the leg holes of the exterior sheet 1, there is also a problem that the lateral leakage of urine and the like cannot be effectively prevented from this point.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide disposable pants in which the function of preventing lateral leakage of urine and the like is remarkably improved.

[0008]

In order to solve the above-mentioned problems, according to the present invention, leg holes are provided on both sides of a crotch portion between a front abdomen and a back portion of an exterior sheet, and the leg holes are provided in the leg holes. In the disposable pants in which leg gathers are formed in the leg holes of the exterior sheet by the elastic yarns for the legs attached along, an interior sheet having substantially the same shape as the exterior sheet is provided. The leg elastic yarn joined to the inner surface of the exterior sheet and attached along the leg hole of the interior sheet complements the interrupted portion of the leg elastic yarn of the exterior sheet and extends over the entire leg hole. The elastic yarn for the leg is attached so as not to be interrupted, and the inner and outer double gathers are formed in each leg hole portion of the outer sheet and the inner sheet by the elastic yarn for both legs. Offer disposable pants It is intended to.

According to the present invention, the interior sheet provided with the elastic yarn for the leg along the leg hole is joined to the exterior sheet provided with the elastic yarn for the leg along the leg hole, Since the elastic yarn for the leg of the interior sheet complements the interrupted portion of the elastic yarn for the leg of the exterior sheet, the leg elastic yarn is attached so as not to be interrupted over the entire region of the leg hole. The hole comes into close contact with the wearer.

According to a second aspect of the present invention, if the exterior sheet and the interior sheet have a structure in which the elastic yarn for the leg is sandwiched between the upper and lower nonwoven fabrics, the absorbability is enhanced by the multilayer nonwoven fabric. Become like

According to a third aspect of the present invention, each of the elastic yarns for the legs of the exterior sheet and the interior sheet is provided in a continuous meandering shape in a horizontal direction and cut at an intermediate position, and each of the elastic sheets for the exterior sheet and the interior sheet is cut. With a configuration in which the crotch portion is provided only along the leg hole, the crotch portion is less likely to be deformed by the contraction force of the elastic yarn for the leg.

According to a fourth aspect of the present invention, the exterior sheet and the interior sheet are joined to each other with an adhesive applied to the front abdomen and the back portion in a lateral direction, and the crotch portion is formed of the adhesive between the front abdomen portion and the back portion. With a configuration in which the gaps are joined by an adhesive applied in the vertical direction, the vicinity of both legs is not bonded by the adhesive.

According to a fifth aspect of the present invention, when an absorbent is joined to the inner surface of the interior sheet, the absorbent can absorb a large amount of urine and the like.

According to a sixth aspect of the present invention, the absorber is joined to the inner surface of the exterior sheet, and a hole for exposing the absorber to the inner surface of the interior sheet is formed in the interior sheet corresponding to the absorber. With this configuration, urine and the like leaked from the absorber are kept between the exterior sheet and the interior sheet.

According to a seventh aspect of the present invention, either a pants type in which both sides of the front abdomen and the back are side-sealed, or a diaper type in which a fastening tape is attached to one of the sides of the front abdomen and the back. There may be.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows the disposable pants 5A of the first embodiment.
FIG. 4 is a front view of the disposable pants 5A.
Is composed of an exterior sheet 6 and an interior sheet 7.

As shown in FIG. 1A, the outer sheet 6 has leg holes 6D on both sides of a crotch 6C between the front abdomen 6A and the back 6B. This exterior sheet 6
Are the outer sheet 6a on the outer side and the inner sheet 6b on the inner side
The outer sheet 6a is formed of a synthetic resin fiber nonwoven fabric or a synthetic resin film having water repellency, and the inner sheet 6b is formed of a synthetic resin fiber nonwoven fabric having hydrophilicity. .

A first leg elastic thread 8 is attached to the inner surface of the outer sheet 6a in a lengthwise (lateral) direction along the periphery of each leg hole 6D, and the inner sheet 6b is As shown in FIG. 1D, the first leg elastic yarn 8 is adhered to the outer sheet 6a with the elastic yarn 8 interposed therebetween.

The first leg elastic yarn 8 is provided in a continuous meandering manner within a range not exceeding the central portion of the crotch 6C (that is, not crossing), and is similar to the prior art of FIG. 10 (a). At the same time, a complete break S1 occurs, and an incomplete break S2 that does not follow the leg hole 6D (displaces inward of the leg hole 6D) occurs.

Although not specifically shown, the front abdomen 6A
An elastic yarn for waist and an elastic yarn for body fit are additionally provided to the rear part 6B.

As shown in FIG. 1B, the interior sheet 7 has leg holes 7D on both sides of a crotch portion 7C between a front abdomen portion 7A and a back portion 7B. This interior sheet 7
Are the outer sheet 7a on the outer side and the inner sheet 7b on the inner side
The outer sheet 7a and the inner sheet 7b are
It is formed of a nonwoven fabric made of synthetic resin fiber having hydrophilicity.

The front part 7A and the back part 7 of the interior sheet 7
B is formed to be slightly shorter than the front abdomen 6A and the rear back 6B of the exterior sheet 6 and the leg holes 7D of the interior sheet 7
Is formed with a larger curvature than the leg holes 6D of the exterior sheet 6, and when overlapped with the inner sheet 6b of the exterior sheet 6, the interior sheet 7 is larger than the leg holes 6D of the exterior sheet 6.
The leg hole portion 7D protrudes slightly outward.

A second leg elastic thread 9 is attached to the inner surface of the outer sheet 7a in a lengthwise (longitudinal) direction along the periphery of each leg hole 7D, and the inner sheet 7b is As shown in FIG. 1D, the second leg elastic thread 9 is adhered to the outer sheet 7a with the second leg elastic thread 9 interposed therebetween.

The second leg elastic yarn 9 is provided in a continuous meandering manner in a range (that is, crosses) beyond the central portion of the crotch portion 7C, and the first leg elastic yarn 8 of the exterior sheet 6 is provided. The elastic yarns 8 and 9 for the legs are provided so as not to be interrupted over the entire area of the leg holes 6D and 7D of the exterior sheet 6 and the interior sheet 7 by complementing the interrupted portions S1 and S2 of the outer sheet 6 and the inner sheet 7. Become.

Further, double leg gathers are formed in the leg holes 6D, 7D of the exterior sheet 6 and the interior sheet 7 by the elastic yarns 8, 9 for both legs.

The disposable pants 5 in the unfolded state shown in FIG.
A (the same applies to the disposable pants in each of the following embodiments) joins the outer sheet 7a of the inner sheet 7 to the inner sheet 6b of the outer sheet 6 with an adhesive 10c (see FIG. 1 (d)). , 7A and the sides 5a of the back portions 6B, 7B are bonded to each other so that they can be assembled in the use state of FIG. In the above embodiment, the disposable pants 5A are used. However, if fastening tape is attached to both sides 5a of the back portions 6B and 7B, the disposable diaper can be obtained.

In the case of the disposable pants 5A of the first embodiment, the leg elastic thread 9 is provided along the leg hole 7D on the exterior sheet 6 provided with the leg elastic thread 8 along the leg hole 6D.
Are bonded by bonding, and the elastic yarns 9 for the legs of the interior sheet 7 complement the interrupted portions S1 and S2 of the elastic yarns 8 for the legs of the external sheet 6 to form leg holes. Elastic yarns 8 and 9 for each leg over the entire area of 6D and 7D
Is provided so as not to be interrupted.
Since 1 and S2 are eliminated and the leg holes 6D and 7D come into close contact with the wearer, lateral leakage of urine and the like can be effectively prevented.

Also, since the inside and outside double leg gathers are formed in the leg holes 6D and 7D of both the exterior sheet 6 and the interior sheet 7, the lateral leakage of urine and the like can be effectively prevented from this point as well. As a result, the function of preventing lateral leakage of urine and the like is significantly improved.

Further, the exterior sheet 6 and the interior sheet 7
Since the elastic yarns for legs 8 and 9 are sandwiched between the upper and lower nonwoven fabrics (the inner sheets 6b and 7b and the outer sheets 6a and 7a), these multilayer nonwoven fabrics 6b and 7b are formed.
7b, 6a, and 7a increase the absorbability, so that lateral leakage of urine and the like can be prevented.

FIG. 2 shows the disposable pants 5B of the second embodiment.
Is a front view of the unfolded state of the first embodiment, which is different from the disposable pants 5A of the first embodiment in that the outer sheet 6 and the inner sheet 7 are different from each other.
Each of the leg elastic yarns 8 and 9, which are provided in a continuous meandering manner in the horizontal direction, are cut K at an intermediate position and cut along the leg holes 6D and 7D of the exterior sheet 6 and the interior sheet 7. Only to be attached.

As a result, the leg elastic yarns 8, 9 are eliminated from the crotch portions 6C, 7C, and the crotch portion is less likely to be deformed by the contraction force of the leg elastic yarns 8, 9, so that the crotch portions 6C, 7C
Is maintained, and lateral leakage of urine or the like can be prevented.

FIG. 3 shows a disposable pants 5C according to a third embodiment.
Is a front view of the unfolded state of the second embodiment, which is different from the disposable pants 5B of the second embodiment.
The front abdomen 6A, 7A and the back back 6B, 7B are joined by an adhesive 10a applied in the lateral direction, respectively, and the crotch 6C, 7C is connected to the front abdomen 6A, 7A and the back back 6B, 7B. Are bonded by an adhesive 10b applied in a vertical direction between the adhesives 10a.

As a result, the vicinity of each of the legs 6D, 7D is not adhered by the adhesives 10a, 10b, so that the feeling of stiffness is reduced and the feeling of wearing is improved, so that the feeling of wearing is improved.

FIG. 4A is a front view of the disposable pants 5D of the fourth embodiment in an unfolded state. The difference from the disposable pants 5B of the second embodiment is that the inside of the inner sheet 7b of the interior sheet 7 is different. The absorber 11 is joined (FIG. 4).
(B)). The absorbent body 11 is a mixture of natural pulp fibers, synthetic resin fibers, or highly water-absorbent resin materials or the like, and is formed into an hourglass-shaped flat body that is slightly smaller than the interior sheet 7 and has a thin paper outer periphery. The wrapped core is sandwiched between a waterproof film on the outer surface and a nonwoven fabric made of synthetic resin fiber on the skin surface.

As a result, a large amount of urine and the like can be absorbed by the absorber 11, so that lateral leakage of the urine and the like can be prevented. In addition, if the rising strip | belt (cuff) 12 which rises in the crescent shape by the side view and forms the rising gathering on both sides of the absorber 11 is attached to both sides of the absorber 11, (refer FIG.4 (c)). ), Lateral leakage of urine and the like can be effectively prevented.

As shown in FIG. 5A, a hydrophilic nonwoven fabric sheet 13 is adhered to the inner surface of the inner sheet 7b of the interior sheet 7 so as to cover the front portions of the absorber 11 and the rising band material 12. By forming the pockets 14 in the front portions of the absorbent body 11 and the rising band material 12 (see FIG. 5B), urine, loose stool, etc. can be prevented from leaking in the abdomen and back. .

FIG. 9 shows a disposable pants 5D of the fourth embodiment.
Is an outline of the manufacturing process, wherein the outer sheet 6 in which the first leg elastic yarn 8 is bonded between the outer sheet 6a and the inner sheet 6b, and the second sheet between the outer sheet 7a and the inner sheet 7b.
In step G1, the interior sheet 7 is adhered to the exterior sheet 6 while the interior sheet 7 to which the leg elastic yarn 9 is adhered is sent in the horizontal direction L, and the absorber 11 is adhered to the interior sheet 7 in step G2. At step G4, the crotch 6C,
The front abdomen 6A, 7A and the back back 6B, 7B are folded in two so that they overlap each other with the 7C as a boundary, and the two sides 5a of the front abdomen 6A, 7A and the back back 6B, 7B are bonded to each other so as to be assembled. Become.

FIG. 6 shows a disposable pants 5E according to a fifth embodiment.
Is a front view of the unfolded state of the outer sheet 6, which differs from the disposable pants 5B of the second embodiment.
a, the absorber 11 is joined to the inner surface of the inner sheet 7b, and the elliptical hole 7 exposing the absorber 11 to the inner surface of the inner sheet 7b of the inner sheet 7 is formed in the inner sheet 7 corresponding to the absorber 11.
c is formed.

As a result, urine and the like leaked from the absorber 11 are kept between the exterior sheet 6 and the interior sheet 7, so that lateral leakage of urine and the like can be prevented.

In each of the above embodiments, the elastic yarn 8 for the first leg of the exterior sheet 6 may have an additional form as shown in FIG. 7 (a) instead of the additional form as shown in FIG. 2 (a). .
The elastic yarn 9 for the second leg of the interior sheet 7 is formed as shown in FIG.
Instead of the additional form as shown in FIG. 7B, an additional form as shown in FIG.

[0042]

As is apparent from the above description, according to the present invention, the leg elastic yarn is attached along the leg hole to the exterior sheet having the leg elastic yarn attached along the leg hole. The provided interior sheet is joined, and the elastic yarn for the leg of the interior sheet complements the interrupted portion of the elastic yarn for the leg of the exterior sheet, so that the elastic yarn for the leg is not interrupted over the entire leg hole. As described above, the leg hole comes into close contact with the wearer, so that lateral leakage of urine and the like can be effectively prevented.

Further, since the inside and outside double leg gathers are formed in the leg holes of both the exterior sheet and the interior sheet, the lateral leakage of urine and the like can be effectively prevented from this point, and the urine can be effectively prevented. And the like, and the function of preventing lateral leakage is remarkably improved.

If the exterior sheet and the interior sheet are structured such that the elastic yarn for the leg is sandwiched between the upper and lower nonwoven fabrics as described in claim 2, the absorbability is enhanced by these multilayer nonwoven fabrics. Etc. can be prevented.

According to a third aspect of the present invention, each of the elastic yarns for the legs of the exterior sheet and the interior sheet, which is provided in a continuous meandering shape in the horizontal direction, is cut at an intermediate position. If it is configured to be attached only along the leg hole, the crotch is less likely to be deformed by the contraction force of the elastic yarn for the leg, so that the tightness of the crotch is maintained and lateral leakage of urine and the like is maintained. Can be prevented beforehand.

According to a fourth aspect of the present invention, the exterior sheet and the interior sheet are joined to each other with an adhesive applied to the front abdomen and the back portion in a lateral direction, and the crotch portion extends vertically between the adhesives at the front abdomen and the back portion. If the structure is joined by the adhesive applied in the directions, the vicinity of both legs is not bonded by the adhesive, so that the feeling of stiffness is reduced and the softness is obtained, so that the feeling of wearing is improved.

According to a fifth aspect of the present invention, when an absorbent body is joined to the inner surface of the interior sheet, a large amount of urine and the like can be absorbed by the absorbent body, so that lateral leakage of urine and the like is prevented beforehand. can do.

According to a sixth aspect of the present invention, if the absorber is joined to the inner surface of the exterior sheet and the interior sheet is formed with a hole for exposing the absorber to the inner surface of the interior sheet, the absorber leaks out of the absorber. Since urine and the like are kept between the exterior sheet and the interior sheet, lateral leakage of the urine and the like can be prevented.

[Brief description of the drawings]

FIG. 1 is a disposable pants according to a first embodiment,
(A) is a plan view of the exterior sheet, (b) is a plan view of the interior sheet, (c) is a front view in which the interior sheet is joined to the exterior sheet, and (d) is a cross-sectional view of (c).

FIG. 2 is a disposable pants according to a second embodiment,
(A) is a plan view of the exterior sheet, (b) is a plan view of the interior sheet, and (c) is a front view in which the interior sheet is joined to the exterior sheet.

FIG. 3 is a disposable pants according to a third embodiment,
(A) is a plan view of the exterior sheet, (b) is a plan view of the interior sheet, and (c) is a front view in which the interior sheet is joined to the exterior sheet.

FIG. 4 is a disposable pants according to a fourth embodiment,
(A) is a front view in which an interior sheet is joined to an exterior sheet,
(B) is a sectional view of (a) without a rising band, (c)
FIG. 3A is a cross-sectional view of FIG.

5A and 5B are disposable pants according to a modification of the fourth embodiment, wherein FIG. 5A is a front view in which an interior sheet is joined to an exterior sheet, and FIG. 5B is a cross-sectional view of FIG.

FIG. 6 is a disposable pants according to a fifth embodiment,
(A) is a plan view of an exterior sheet, (b) is a plan view of an absorber, (c) is a plan view of an interior sheet, (d) is a front view in which an interior sheet is joined to an exterior sheet, and (e) is ( It is sectional drawing of d).

FIG. 7A is a front view of a modified example of the attached form of the leg elastic thread of the exterior sheet, and FIG. 7B is a front view of the modified example of the attached form of the leg elastic thread of the interior sheet.

FIG. 8 is a front view of the disposable pants in an assembled state.

FIG. 9 is a front view of a process of manufacturing disposable pants.

10A and 10B are conventional disposable pants, in which FIG. 10A is a front view of an expanded state of an exterior sheet, FIG. 10B is a front view of an absorber, FIG. 10C is a cross-sectional view of FIG. It is a front view of the disposable pants in a state.

[Explanation of symbols]

 5A to 5E Disposable pants 6 Exterior sheet 6A Front abdomen 6B Rear back 6C Crotch 6D Leg hole 7 Interior seat 7A Front abdomen 7B Rear back 7C Crotch 7D Leg hole 8 Elastic thread for first leg 9 Elastic for second leg Thread 11 absorber

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Maeda Toyama, Sadamitsu-machi, Somako-cho, Mima-gun, Tokushima Prefecture Inside the Sadamitsu Plant, Tokushima Co., Ltd. Material F-term in Tokushima Sadamitsu Factory Co., Ltd. (reference) 3B029 BD12 BD13 BD14 BF07 DA00 4C098 AA09 CC07 CC12 CC27 CE05 CE06

Claims (7)

[Claims] 1. A leg hole is provided on both sides of a crotch portion between a front abdomen and a back portion of an exterior sheet, and a leg hole of the exterior sheet is provided by a leg elastic thread provided along the leg hole. In the disposable pants in which leg gathers are formed in the part, an interior sheet having substantially the same shape as the exterior sheet is provided,
The interior sheet is joined to the inner surface of the exterior sheet, and the elastic yarn for the leg provided along the leg hole of the interior sheet complements the interrupted portion of the elastic yarn for the leg of the exterior sheet to form the leg hole. The elastic yarns for the legs are provided so as not to be interrupted over the entire area, and the inner and outer double gathers are formed in the leg holes of the exterior sheet and the interior sheet by the elastic yarns for the legs. Disposable pants characterized by the following. 2. The disposable pants according to claim 1, wherein the exterior sheet and the interior sheet are formed by sandwiching elastic yarns for legs between upper and lower nonwoven fabrics. 3. The elastic yarns for the legs of the exterior sheet and the interior sheet, which are provided in a continuous meandering manner in the horizontal direction, are cut at an intermediate position, and are cut along the leg holes of the exterior sheet and the interior sheet. The disposable pants according to claim 1 or 2, wherein the pants are only attached to the pants. 4. The exterior sheet and the interior sheet, the front abdomen and the back are joined with an adhesive applied in a lateral direction,
The disposable pants according to any one of claims 1 to 3, wherein the crotch portion is joined with an adhesive applied in a longitudinal direction between the adhesives on the front abdomen and the back. 5. The disposable pants according to claim 1, wherein an absorber is bonded to an inner surface of the interior sheet. 6. An absorber is bonded to an inner surface of an exterior sheet, and a hole for exposing the absorber to the inner surface side of the interior sheet is formed in an interior sheet corresponding to the absorber. Item 5. Disposable pants according to any one of Items 4. 7. A pants type in which both sides of the front abdomen and the back are side-sealed, or a diaper in which a fastening tape is attached to one of the sides of the front abdomen and the back. The disposable pants according to claim 6.