JPH114853A - Disposable wearing article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable diaper that is excellent in fit while it is worn and excellent also in appearance. SOLUTION: A disposable diaper has a liquid-permeable surface sheet 2, an outermost sheet 7 located on the outer surface of the disposable diaper, and a liquid-retaining absorber 4, with a girth elastic member 13 placed around its girth part. The girth elastic member 13 is secured to members other than the outermost sheet 7 while being expanded to form gathers, and a non-adhesive area is provided between the girth elastic member 13 and the outermost sheet 7, with no gathers formed on the outer surface of the girth part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disposable diapers and sanitary napkins and other disposable wearing articles which are excellent in appearance and fit.

[0002]

2. Description of the Related Art Conventionally, disposable diapers include a liquid-permeable topsheet,
It has a liquid-impermeable back sheet, and a liquid-retentive absorber interposed between these two sheets, and a waist elastic member is arranged at a waist located at the waist of the wearer at the time of use. 2. Description of the Related Art A leg portion elastic member is provided on a leg portion located around a leg of a wearer, and a waist elastic member is provided on a waist portion located around the wearer's waist during use.

[0003] In such a disposable diaper, the waist elastic member is a member provided for enhancing the fit around the waist and improving the fit during wearing. The waist elastic member is usually attached to the back sheet so as to form a gather on the outer surface of the diaper. For this reason, in the conventional disposable diaper having the waist elastic member, there has been a problem that the appearance is poor due to the gathers.

[0004] Accordingly, an object of the present invention is to provide a disposable wearing article which is excellent in fitting property during wearing and further excellent in appearance.

[0005]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that a disposable diaper having a structure in which the waist elastic member is arranged without being bonded to the outermost layer sheet can achieve the above object. did.

The present invention has been made based on the above findings, and has a liquid-permeable topsheet, an outermost layer sheet located on the outer surface of a disposable wearing article, and a liquid-retaining absorbent, and has a waistline. In the disposable wearing article in which the waist elastic member is disposed in the part, the waist elastic member is fixed in a stretched state to a member other than the outermost sheet to form a gather inside the outermost sheet, A disposable wearing article characterized in that a non-adhesive area is provided between the waist elastic member and the outermost layer sheet, and no gather is formed on an outer surface of the waist part.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the disposable wearing article of the present invention will be described below with reference to the drawings. First, referring to FIGS. 1 to 7, a first disposable diaper of the present invention will be described.
An embodiment will be described. Here, FIG. 1 is a front view showing a disposable diaper as a first embodiment of the disposable wearing article of the present invention. FIG. 2 is a development view of the disposable diaper of the embodiment shown in FIG. 1, and FIG.
4 is a sectional view taken along the line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along the line VV of FIG. 2, and FIG. 6 is a sectional view of FIG.
It is VI-VI sectional drawing. FIG. 7 is an exploded perspective view of the disposable diaper shown in FIG.

A disposable diaper 1 according to a first embodiment shown in FIGS. 1 and 2 comprises a liquid-permeable topsheet 2, an outermost sheet 7 located on the outer surface of the disposable diaper, and a liquid-retaining absorbent. It has a body 4 and a waist elastic member 13 is arranged in a waist portion E.

The waist elastic member 13 is fixed to members other than the outermost layer sheet 7 in an extended state to form a gather, and a non-adhesive area is formed between the waist elastic member 13 and the outermost sheet 7. F is provided, and no gathers are formed on the outer surface of the waist portion E. Here, “fixed to a member other than the outermost layer sheet” means a state where the member is fixed to a member other than the outermost layer sheet including the topsheet and the absorber, but is not fixed to the outermost layer sheet. .

The disposable diaper according to the present embodiment will be described in more detail. The disposable diaper has a liquid-impermeable back sheet 3, and the absorber 4 is interposed between the top sheet 2 and the back sheet 3. An elastic member fixing sheet 5 is provided on the inner side of
Are arranged on the inner surface side of the back sheet 3.
The waist elastic member 13 is sandwiched and fixed between the inner layer sheet 6 that is a member other than the outermost layer sheet 7 and the elastic member fixing sheet 5, and the back sheet 3 Is the elastic member fixing sheet 5 which is a sheet located immediately on the inner surface thereof, and the waist elastic member 1
3 is not bonded in the area where 3 exists. That is,
The inner surface of the back sheet 3 is the elastic member fixing sheet 5.
Is adhered to the inner layer sheet 6 at a portion where the elastic member fixing sheet 5 is not adhered, and almost the entire outer surface thereof is adhered to the outermost layer sheet 7. The elastic member fixing sheet 5 is disposed between the back sheet 3 and the inner layer sheet 6. Further, in the disposable diaper 1 of the present embodiment, the waist elastic member 11 is disposed at the waist opening C, the leg elastic member 12 is disposed at the leg D, and the waist elastic member 11 is located below the waist opening C. A waist elastic member 13 is arranged in the waist portion E. That is, in the present embodiment, the waist portion E is a portion located below the waist opening in the abdomen and the back as shown in FIG. Further, the disposable diaper 1 of the present embodiment has a ventral side B as shown in FIGS.
Left and right side edges A1, B2 of the back side A
This is a pants-type disposable diaper formed by joining and fixing A1 and A2. Further, as shown in FIGS. 2 to 7, the inner surface of the back sheet 3 is not bonded to the elastic member fixing sheet 5, but is bonded to the inner layer sheet 6 at a portion where the elastic member fixing sheet is not bonded. In addition, the entire surface of the back sheet 3 is adhered to the outermost sheet 7.

That is, the disposable diaper 1 of the present embodiment comprises:
As shown in FIGS. 2 to 7, the configuration is as follows. In the disposable diaper 1 of the present embodiment, the back sheet 3
Are formed in an hourglass shape in which the crotch region is narrowed.
The absorber 4 has a T-shape, and is arranged so as to be located substantially at the center of the back sheet 3. Top sheet 2
Is formed in an hourglass shape smaller than the back sheet 3 and overflows the crotch region, and is arranged so as to cover the absorber 4.

The shape of the outermost layer sheet 7 disposed on the outer surface side (outer surface side of the diaper) of the back sheet 3 is almost the same as the shape of the back sheet 3, but the front and rear ends 7a, 7b.
Are formed longer than the back sheet 3. The shape of the inner layer sheet 6 arranged on the inner surface side of the back sheet 3 (the surface side on the absorber 4 side) is also substantially the same as the shape of the back sheet 3, but the front and rear ends 6 a and 6 b are longer than the length of the back sheet 3. The length is longer than the length and shorter than the length of the outermost layer sheet 7. In addition, a rectangular elastic member fixing sheet 5 is disposed at a portion (both on the abdominal portion B side and the dorsal portion A side) located at the waist portion E of the diaper.

On the left and right sides of the disposable diaper 1 in the longitudinal direction, a three-dimensional guard 8 is formed by disposing a nonwoven fabric. The free end 81 of the three-dimensional guard 8 is provided with a three-dimensional guard elastic elastic member 14 to form a three-dimensional gather. The outermost layer sheet 7 has front and rear end portions 7a,
7b is folded back at the front and rear end edges of the diaper, and is fixed so as to cover the front and rear end edges of the absorber 4, the topsheet 2 and the three-dimensional guard 8.

When the diaper is worn, the waist opening C and the leg D at the periphery of the absorber 4
A waist elastic member 11 and a leg elastic member 12 for fitting the waist opening C and the leg D to a wearer are provided. A plurality of waist elastic members 11 (three in this embodiment) are provided linearly, and the leg elastic members 12 are provided on both the abdominal part B side and the back part A side. A plurality (two in this embodiment) is provided in a U-shape. The waist elastic member 11 is sandwiched and fixed between the outermost sheet 7 and the inner sheet 6, and the leg elastic member 12 is
It is sandwiched and fixed between the outermost layer sheet 7 and the back sheet 3. The waist elastic member 13 is sandwiched and fixed between the elastic member fixing sheet 5 and the inner layer sheet 6.

The absorber 4 is adhered to the inner layer sheet 6 via an adhesive 61 applied in a linear and rectangular shape. The elastic member fixing sheet 5 has an adhesive (hatched portion shown in FIG. 7) applied to almost the entire inner surface (the surface on the absorber 4 side) and is adhered to the inner layer sheet 6. The hatched area in the exploded perspective view indicates the area where the adhesive is applied. The area indicated by the dashed broken line indicates that the back surface side of the surface shown in the figure is the region where the adhesive is applied. The same applies to the following description of each embodiment. The back sheet 3 is provided with an adhesive (see FIG. 7) at a position where the back sheet 3 does not come into contact with the elastic member fixing sheet 5.
(Shaded area shown in FIG. 3) is applied and adhered to the inner layer sheet 6. That is, the elastic member fixing sheet 5 and the back sheet 3
And is not glued. Further, the outermost layer sheet 7 has an adhesive (shaded portion shown in FIG. 7) applied to almost the entire surface thereof, is adhered to the entire surface of the back sheet 3, and has inner layer sheets at both front and rear edge portions 7a and 7b. 6 are adhered to the front and rear ends 6a and 6b, and the front and rear ends of the top sheet 2 and the three-dimensional guard 8 are fixed at the folded portions.

In the disposable diaper 1 of this embodiment, the waist elastic member 13 is sandwiched and fixed between the elastic member fixing sheet 5 and the inner layer sheet 6, and is directly attached to the back sheet 3 and the outermost layer sheet 7. Since it is not fixed indirectly, the non-adhesive region F is formed between the waist elastic member 13 and the outermost layer sheet, and no gather is formed by the waist elastic member 13 on the waist portion E on the outer surface of the diaper. . Accordingly, the function of the waist elastic member 13 improves the fit of the waist portion E, and thus the fit of the entire diaper, but does not impair the appearance. Further, according to the disposable diaper of the present embodiment, the following effects are further exhibited. Cloth-like neat appearance and good fit. Even when wearing tight trousers, skirts and pants, the appearance of wearing a diaper is not noticeable. It does not catch when wearing diapers and pants, and is smooth. When a picture or print is introduced, the appearance is prevented from being deteriorated due to the printed pattern being wrinkled. When a waste tape is introduced, adhesion is easy in processing and productivity is improved.
Gathering of the disposal tape by gathers and the harmful effects such as wrinkling and peeling of corners are prevented. In addition, the adhesive surface of the tape is smooth and easy to stick at the time of disposal, and the disposal operation is easy. As a sheet outside the waist elastic member,
It is more preferable to use a material having a high concealing property (particularly, a waterproof film).

Next, the material for forming each member of the disposable diaper 1 will be described. As the topsheet 2,
A liquid-permeable sheet that allows excrement to permeate into the absorber 4 and has a feeling similar to underwear is preferable. Examples of such a liquid-permeable sheet include a woven fabric, a nonwoven fabric, and a porous film. . In addition, a method of applying a hydrophobic compound such as a silicon-based oil agent or paraffin wax to the periphery of the topsheet 2 or a method of applying a hydrophilic compound such as an alkyl phosphate ester on the entire surface in advance and washing the periphery with warm water is used. By applying a water repellent treatment, it is possible to prevent leakage due to bleeding of urine and the like on the periphery.

As the back sheet 3, a liquid impermeable and vapor permeable film sheet obtained by adding a filler to a thermoplastic resin, or a laminate of a fiber aggregate and the film sheet is used.

The absorbent 4 is preferably made of fibrillated pulp as a main component and a superabsorbent polymer. The superabsorbent polymer may be present in any of the upper layer, the middle layer, and the lower layer of the absorber 4, or may be mixed with pulp. Further, the superabsorbent polymer preferably has a retaining performance of absorbing and retaining a liquid 20 times or more its own weight, and is preferably in the form of particles having a gelling property. As such a superabsorbent polymer, for example, a starch-acrylic acid (salt) graft copolymer, a saponified starch-acrylonitrile copolymer, a cross-linked sodium carboxymethyl cellulose, an acrylic acid (salt) polymer and the like are preferable. No.

Waist elastic member 11, leg elastic member 12, waist elastic member 13, and three-dimensional guard elastic member 1
Examples of 4 include thread rubber, flat rubber, film-type rubber, or an elastic film of ethylene-α-olefin copolymer produced using a polyurethane or metallocene catalyst, thread rubber, flat rubber, foam, and the like. Preferred are those having a stress at 50% elongation of 40 to 150 grams.

Further, as the nonwoven fabric forming the three-dimensional guard 8, those usually used for diapers can be used without any particular limitation.

The outermost sheet 7, the inner layer sheet 6, and the elastic member fixing sheet 5 may be a nonwoven fabric, a plastic film such as polyethylene or urethane, or a laminate thereof, which is usually used as a sanitary material. Can be used.

The disposable diaper of the present embodiment can be used in the same manner as a normal pants-type disposable diaper, and can be manufactured as follows. That is, as shown in FIG. 7, the absorber 4, the top sheet 2, and the three-dimensional guard 8 are placed in this order on the inner surface of the inner layer sheet 6, and further, the outer surface side of the inner layer sheet 6 (the back sheet 3 side). The elastic member fixing sheet 5 to which the waist elastic member 13 is fixed is disposed on the front and rear end portions 6a and 6b sides, and no adhesive is applied to a portion in contact with the elastic member fixing sheet 5 and Back sheet 3 in which an adhesive is applied only to a portion directly in contact with inner layer sheet 6
Then, the outermost layer sheet 7 having the waist elastic member 11 and the leg elastic member 12 disposed at predetermined positions is adhered to the back sheet 3 and the inner layer sheet 6. Further, the front and rear edges 7a and 7b of the outermost layer sheet 7 are folded back in the direction of the arrow, and the topsheet 2 and the three-dimensional guard 8 are fixed, so that the disposable diaper of the present embodiment can be obtained.

Although the disposable diaper of the present invention has been described based on the preferred embodiment, the disposable diaper of the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above-described embodiment, the back sheet 3 is used as the outermost sheet without providing the outermost sheet 7, and the waist elastic member 11 and the leg elastic member 12 are fixed by the back sheet and the inner sheet 6. A form in which the waist elastic member 13 is fixed by the absorber 4 and the top sheet 2 and the elastic member fixing sheet 5 without providing the inner layer sheet 6, and without providing the inner layer sheet 6 and the outermost layer sheet 7, The backsheet may be used as the outermost layer sheet, and the waist elastic member 13 may be fixed by the absorber 4, the topsheet 2, and the elastic member fixing sheet 5, for example. In the above-described embodiment, the example has been described in which the waist elastic member is provided over the entire circumference of the waist portion. However, the waist elastic member is provided only on one part of the waist portion, not on the entire circumference of the waist portion. You may.

Next, the second to fourth embodiments will be described in detail with reference to FIGS. Here, FIG. 8 is an exploded perspective view of the diaper according to the second embodiment, FIG. 9 is an exploded perspective view of the diaper according to the third embodiment, and FIG.
It is a disassembled perspective view of the diaper which shows 4th Embodiment. In the following description of the embodiment, in particular, points different from the above-described first embodiment will be described in detail. For the points not particularly described, the description in the description of the first embodiment is appropriately applied.

A disposable diaper 1 according to a second embodiment shown in FIG. 8 has a liquid-impermeable back sheet 3 and an absorbent body 4.
Is provided between the top sheet 2 and the back sheet 3, an inner layer sheet 6 on the inner surface of the back sheet 3, on which the absorber 4 is placed, is provided.
It is arranged on the inner side of the back sheet 3. The waist elastic member 13 is provided on the inner surface side of the back sheet 3 (the top sheet 2).
Side), and no gathers are formed on the outer surface of the waist portion E.

More specifically, the entire backsheet 3 is adhered to the inner layer sheet 6, and the waist elastics 13 are disposed at the waist portion E of the back portion A and the abdominal portion B.
The waist elastic member 13 is sandwiched and fixed between the back sheet 3 and the top sheet 2 by the back sheet 3 and the inner layer sheet 6. Further, the waist portion E of the back sheet 3 where the waist elastic member 13 is arranged is not bonded to the outermost layer sheet 7 (portion without oblique lines shown in FIG. 8). Thus, the non-adhesion region F is provided between the waist elastic member 13 and the outermost sheet, so that no gather is formed at the waist portion E on the outer surface of the diaper.

The disposable diaper according to the third embodiment shown in FIG. 9 has a liquid-impermeable back sheet 3, and the absorber 4
It is interposed between the top sheet 2 and the back sheet 3,
No inner layer sheet 6 is provided. Waist elastic member 13
Are arranged on the inner surface side of the back sheet 3 (the side of the top sheet 2), and no gathers are formed at the waist portion E on the outer surface of the diaper.

Specifically, in the disposable diaper 1 of the third embodiment shown in FIG. 9, the waist elastic member 13 is sandwiched and fixed between the back sheet 3 and the top sheet 2, and the back sheet 3 and the outermost sheet 7 is bonded via an adhesive (shaded portion in FIG. 9) except for a waist portion E where the waist elastic member 13 is disposed. Therefore, the back sheet 3 and the outermost layer sheet 7 are not bonded to each other where the waist elastic member 13 is provided (the waist area E).
Thus, the non-adhesion region F is provided between the waist elastic member 13 and the outermost layer sheet 7 so that gathers are not formed on the outer surface of the diaper.

The disposable diaper 1 of the fourth embodiment shown in FIG. 10 has a liquid-impermeable back sheet 3 and an absorbent body 4.
Is provided between the top sheet 2 and the back sheet 3, an inner layer sheet 6 on the inner surface of the back sheet 3, on which the absorber 4 is placed, is provided.
It is arranged on the inner side of the back sheet 3. The outermost sheet 7 is not provided, and the back sheet is used as the outermost sheet. Also, the waist elastic member 13
Are arranged on the inner surface side of the back sheet 3 (the side of the top sheet 2), and no gathers are formed at the waist portion E on the outer surface of the diaper. Thus, the outermost layer sheet may be replaced with a back sheet without using a special member.

Specifically, in the disposable diaper according to the fourth embodiment shown in FIG. 10, the waist elastic member 13 is sandwiched and fixed between the inner layer sheet 6 and the top sheet 2. Is adhered via an adhesive (shaded portion in FIG. 10) except for a waist portion E where the waist elastic member 13 is disposed. Therefore, the back sheet 3 and the inner layer sheet 6 are not bonded to each other where the waist elastic member 13 is provided (the waist part E). Thereby, the non-adhesion region F is provided between the waist elastic member 13 and the back sheet 3 as the outermost layer sheet, so that gathers are not formed on the outer surface of the diaper.

In the above-described second to fourth embodiments,
It can be manufactured and used in substantially the same manner as in the first embodiment described above. Then, the same effects as those of the first embodiment are provided.

Next, fifth to ninth embodiments of the present invention will be described with reference to FIGS. Here, FIG.
FIG. 14 is a developed plan view showing a fifth embodiment of the present invention.
FIG. 12 is a sectional view taken along the line XII-XII of FIG. 11, and FIG.
It is an exploded perspective view of the disposable diaper shown in FIG. FIG.
4 is a longitudinal sectional view (FIG. 1) of a sixth embodiment of the present invention.
FIG. 15 is an exploded perspective view (FIG. 13 equivalent view) of the disposable diaper shown in FIG. FIG.
FIG. 17 is a longitudinal sectional view (corresponding to FIG. 12) of a seventh embodiment of the present invention, and FIG. 17 is an exploded perspective view (corresponding to FIG. 13) of the disposable diaper illustrated in FIG. FIG. 18 is a longitudinal sectional view (corresponding to FIG. 12) of the eighth embodiment of the present invention, and FIG. 19 is an exploded perspective view (corresponding to FIG. 13) of the disposable diaper shown in FIG. FIG. 20 shows a ninth embodiment of the present invention.
FIG. 13 is a longitudinal sectional view (equivalent to FIG. 12) of the embodiment of FIG.
FIG. 21 is an exploded perspective view of the disposable diaper shown in FIG. 20 (equivalent to FIG. 13).

First, a fifth embodiment will be described.
In the following description of the fifth to ninth embodiments, the same members as those in the above-described first embodiment are numbered in the hundreds, and the same parts are not particularly described. For the parts that are not particularly described, the description of the first embodiment is appropriately applied.

A disposable diaper 101 according to a fifth embodiment shown in FIGS. 11 to 13 has a liquid-impermeable back sheet 103, and an absorber 104 includes a top sheet 102 and a back sheet 1.
03, an outer layer sheet 109 is disposed between the back sheet 103 and the outermost layer sheet 107, and the waist elastic member 113 is directly fixed to the outer layer sheet 109.

More specifically, as shown in FIGS. 11 and 13, the back sheet 103 and the top sheet 102 are rectangular, and the absorber 104 is formed in an hourglass shape in which the crotch region overflows. . In addition, three-dimensional guards 108 are provided on both left and right side edges above the top sheet 102.

The shape of the outermost sheet 107 and the shape of the outer layer sheet 109 are almost the same, and are formed in an hourglass shape in which the crotch region overflows, but the front and rear end portions 107a and 107b of the outermost sheet 107 are It is formed longer than 109. On the inner surface side of the outer layer sheet 109, a rectangular inner sheet 121 is arranged so as to cover the edge of the top sheet.

The outermost sheet 107 has its front and rear end portions 107a and 107b folded at the front and rear end edges of the diaper, so that the outer layer sheet 109 and the inner sheet 1 are folded.
21 so as to cover the edge thereof. The waist elastic member 111 and the leg elastic member 112 are sandwiched and fixed between the outermost sheet 107 and the outer sheet 109. In addition, the waist elastic member 113 is provided with the outer layer sheet 10.
9 is directly fixed to the inner surface side (skin contact surface side), and is sandwiched and fixed between the outer layer sheet 109 and the inner sheet 121.

The back sheet 103 is adhered at a substantially central portion of the outer layer sheet 109 via an adhesive 161 applied in a linear shape and a rectangular shape. An adhesive is applied to the outermost layer sheet 107 at a portion other than the waistline portion E (hatched portion in FIG. 13), and the outer layer sheet 109 and the outermost layer sheet 107 are not bonded at the waistline portion E. . Further, parts other than the waist part E are bonded via an adhesive. Thereby, the non-adhesion region F is formed between the waist elastic member 113 and the outermost sheet 107.
Is provided so that gathers are not formed on the outer surface of the disposable diaper.

As a material for forming the outer layer sheet 109 and the inner sheet 121, a nonwoven fabric, a plastic film of polyethylene, urethane or the like, which is generally used as a sanitary material, or a laminate thereof can be used.

The fifth embodiment has the same advantages as the first embodiment. Further, it can be manufactured according to the first embodiment described above. In this embodiment, a part of the waist elastic member may be located below the absorber. The above "directly or through another sheet" does not mean that all waist elastic members are bonded to the outer layer sheet, and a case where a part is located above the absorber. It is meant to include.

The sixth to ninth embodiments will be described below. In the following description, points different from the fifth embodiment will be described in detail. The points that are not described in detail are the same as those of the first and fifth embodiments described above, and the description thereof is appropriately applied.

The disposable diaper of the sixth embodiment shown in FIGS. 14 and 15 has an outermost layer sheet 10 at a portion (both on the abdominal portion B side and the back side A side) located at the waist portion E of the diaper.
The rectangular elastic member fixing sheet 5 is arranged between the outer layer sheet 7 and the outer layer sheet 109. Also, waist elastic member 1
13 is an elastic member fixing sheet 105 and an outer layer sheet 10
9 and fixed.

The elastic member fixing sheet 105 has an adhesive (hatched portion shown in FIG. 15) applied to the entire inner surface (the surface on the absorber 4 side) and is adhered to the outer layer sheet 109. Elastic member fixing sheet 105 and outermost layer sheet 10
7 is not bonded. Elastic member fixing sheet 10
5 and the outermost layer sheet 107 are not bonded, so that a non-adhesive region F is provided between the waist elastic member 113 and the outermost layer sheet 107, so that gathers are not formed on the outer surface of the disposable diaper. ing.

A disposable diaper 101 according to a seventh embodiment shown in FIGS. 16 and 17 has a waist elastic member 113 bonded to an inner sheet 121.
And the outer layer sheet 109.

An adhesive is applied to the outermost sheet 107 except for the waistline portion E (shaded portion in FIG. 13), and the outer sheet 109 and the outermost sheet 107 are
The waist portion E is not bonded. Further, parts other than the waist part E are bonded via an adhesive. Thus, the non-adhesive region F is provided between the waist elastic member 113 and the outermost layer sheet 107, so that gathers are not formed on the outer surface of the disposable diaper.

In the disposable diaper according to the eighth embodiment shown in FIGS. 18 and 19, an elastic member fixing sheet 105 is arranged between an inner sheet 121 and an outer layer sheet 109. The waist elastic member 113 is sandwiched and fixed between the elastic member fixing sheet 105 and the inner sheet 121, and is disposed on the outer layer sheet 109.

Then, the elastic member fixing sheet 105
Are fixed to the outer layer sheet 109 only at the both ends in the width direction, and are not fixed at the waist portion E. Further, the outermost sheet 107 and the outer sheet 109 are entirely fixed. The elastic member fixing sheet 10
5 and the outer layer sheet 109 are not bonded at the waist portion E, so that a non-adhesion region F is provided between the waist elastic member 113 and the outermost layer sheet 107, and no gather is formed on the outer surface of the disposable diaper. It has been made like that.

The disposable diaper according to the ninth embodiment shown in FIGS.
Is adhered to the outermost layer sheet 107 side. However, in the present embodiment, the outer layer sheet 10 of the waist elastic member 113 is used.
An adhesive is applied only to the 9th side and is adhered to only the outer layer sheet 109. Thereby, the non-adhesion area F is provided between the waist elastic member 113 and the outermost layer sheet 107, so that gathers are not formed on the outer surface of the disposable diaper.

In the fifth to ninth embodiments, the outermost layer sheet 107 is used without using the inner sheet.
It is also possible to use a configuration in which both ends in the longitudinal direction are extended, and to arrange this extended portion on the innermost surface. The disposable diapers of the fifth to ninth embodiments have the same effects as the disposable diapers of the first embodiment, but are particularly useful for adults.

Next, a tenth embodiment of the present invention will be described in detail with reference to FIGS. Here, FIG.
Is a perspective view showing a tenth embodiment of the present invention, and FIG. 23 is a cross-sectional view taken along the line XXIII-XXIII of the disposable diaper shown in FIG. In the following description, the same parts as those in the above-described first and fifth embodiments are denoted by reference numerals in the 200s, and description thereof will be omitted. For the parts that are not particularly described in detail, the description in the description of the first and fifth embodiments described above is appropriately applied.

The disposable diaper 201 of the tenth embodiment shown in FIGS. 22 and 23 comprises a top sheet 202, a liquid-impermeable back sheet 203, and an absorber (not shown) interposed between these sheets. The diaper main body 230 includes a pair of left and right waist belts 240 connecting a front body (abdominal part B) and a back body (back part A) of the diaper main body 230. The innermost sheet 241 located on the outermost layer and the outermost sheet 2 located on the outermost side
07, an intermediate sheet 242 located between the two sheets, and a waist elastic member 213 sandwiched and fixed between the inner sheet 241 and the intermediate sheet 242.
The outermost layer sheet 207 is not bonded to the outermost layer sheet 207 so that gathers are not formed on the outermost layer sheet 207.

More specifically, the structure of the diaper main body 230 is not particularly limited as long as the diaper main body 230 is constituted by the top sheet 202, the back sheet 203, and the absorber interposed therebetween. In the present embodiment, the topsheet 202,
It is composed of a back sheet 203 and an absorber, and both end portions in the longitudinal direction are tapered. Further, as shown in FIG. 23, the waist belt portion 240 has substantially the same size as the inner sheet 241 and the intermediate sheet 242, and the waist belt portion 240 sandwiches and fixes the waist elastic member 213 therebetween. The outermost layer sheet 207 is disposed so as to be located on the outer surface side of the intermediate sheet 242, and its both side edges are folded back toward the inner sheet 241, and the folded portion is fixed to the inner surface of the inner sheet 241. ing. The outermost layer sheet 207 is not adhered to the intermediate sheet 242, so that a non-adhesion area F is provided between the waist elastic member 213 and the outermost layer sheet 207, and gathers are formed on the outer surface of the disposable diaper. It has been made not to be.

As the material for forming the inner sheet and the intermediate sheet, a nonwoven fabric, a plastic film such as polyethylene or urethane, which is usually used as a sanitary material, or a laminate thereof can be used.

In the tenth embodiment, various modifications can be made without departing from the scope of the present invention. For example, the shape of the absorber may be rectangular, or a pair of left and right waist belts may be replaced with an annular one. For example, a waist belt can be used.

[0056]

Industrial Applicability The disposable wearing article of the present invention has an excellent fit during wearing and an excellent appearance.

[Brief description of the drawings]

FIG. 1 is a front view showing a disposable diaper as a first embodiment of the disposable wearing article of the present invention.

FIG. 2 is a development view of the disposable diaper of the embodiment shown in FIG.

FIG. 3 is a sectional view schematically showing a section taken along line III-III of FIG. 2;

FIG. 4 is a sectional view schematically showing a section taken along line IV-IV of FIG. 2;

FIG. 5 is a cross-sectional view schematically showing a VV cross section of FIG. 2;

FIG. 6 is a sectional view schematically showing a section taken along line VI-VI of FIG. 2;

FIG. 7 is an exploded perspective view of the disposable diaper shown in FIG.

FIG. 8 is an exploded perspective view of a diaper according to a second embodiment.

FIG. 9 is an exploded perspective view of a diaper according to a third embodiment.

FIG. 10 is an exploded perspective view of a diaper according to a fourth embodiment.

FIG. 11 is a developed plan view showing a fifth embodiment of the present invention.

FIG. 12 is a cross-sectional view schematically showing a XII-XII cross section of FIG. 11;

FIG. 13 is an exploded perspective view of the disposable diaper shown in FIG.

FIG. 14 is a cross-sectional view (corresponding to FIG. 12) schematically showing a longitudinal cross section of a sixth embodiment of the present invention.

FIG. 15 is an exploded perspective view (FIG. 13 equivalent view) of the disposable diaper shown in FIG.

FIG. 16 is a cross-sectional view (corresponding to FIG. 12) schematically showing a cross section in a longitudinal direction of a seventh embodiment of the present invention.

FIG. 17 is an exploded perspective view (FIG. 13 equivalent view) of the disposable diaper shown in FIG. 16;

FIG. 18 is a cross-sectional view (corresponding to FIG. 12) schematically showing a cross section in the longitudinal direction of an eighth embodiment of the present invention.

FIG. 19 is an exploded perspective view of the disposable diaper shown in FIG. 18 (equivalent to FIG. 13).

FIG. 20 is a cross-sectional view (corresponding to FIG. 12) schematically showing a longitudinal cross-section of a ninth embodiment of the present invention.

FIG. 21 is an exploded perspective view of the disposable diaper shown in FIG. 20 (a view corresponding to FIG. 13).

FIG. 22 is a perspective view showing a tenth embodiment of the present invention.

FIG. 23 is a disposable diaper XX shown in FIG. 22.
It is sectional drawing which shows III-XXIII cross section typically.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 5 Elastic member fixing sheet 6 Inner layer sheet 7 Outermost sheet 8 Solid guard 11 Waist elastic member 12 Leg elastic member 13 Waist elastic member 14 Solid guard elastic member A Back side Part B Ventral part C Waist part D Leg part E Waist part

Continuing on the front page (72) Inventor Jizo Hida 2606 Kabane-cho, Akaga-cho, Haga-gun, Tochigi Pref. In the Kao Co., Ltd. (72) Inventor Ken Nemoto 2606, Kabashi-cho, Akaba-cho, Haga-gun, Tochigi pref.

Claims (5)

[Claims] 1. A disposable having a liquid-permeable topsheet, an outermost layer sheet located on the outer surface of a disposable wearing article, and a liquid-retentive absorbent body, wherein a waist elastic member is disposed around a waist portion. In the wearing article, the waist elastic member is fixed to a member other than the outermost sheet in an extended state to form a gather inside the outermost sheet, and the waist elastic member and the outermost sheet A disposable wearing article, wherein a non-adhesive region is provided therebetween, and gathers are not formed on an outer surface of the waist portion. 2. A liquid-impermeable back sheet, wherein the absorber is interposed between the top sheet and the back sheet, and an elastic member fixing sheet is provided on the inner side of the back sheet. An inner layer sheet on which the absorber is placed is disposed on the inner surface side of the back sheet. The waist elastic member is held and fixed by the inner layer sheet and the elastic member fixing sheet. 2. The disposable wearing article according to claim 1, wherein the back sheet is not adhered to a sheet located immediately inside in a region where the waist elastic member exists. 3. 3. A liquid-impermeable back sheet, wherein the absorber is interposed between the top sheet and the back sheet, and the absorber is placed on the inner surface side of the back sheet. The disposable wearing article according to claim 1, wherein an inner layer sheet to be placed is provided, and the waist elastic member is arranged on an inner side of the back sheet. 4. A liquid-impermeable back sheet, wherein the absorber is interposed between the top sheet and the back sheet, and an outer sheet is provided between the back sheet and the outermost sheet. The disposable wearing article according to claim 1, wherein the waist elastic member is fixed to the outer layer sheet directly or via another sheet. 5. A diaper body comprising the top sheet, the liquid-impermeable back sheet, and the absorber interposed between the two sheets, and a pair of left and right diapers connecting a front body and a back body of the diaper body. A waist belt portion, wherein the waist belt portion is formed by an innermost sheet positioned at the innermost position, the outermost layer sheet positioned at the outermost position, an intermediate sheet positioned between the two sheets, an inner surface sheet and an intermediate sheet. The intermediate sheet and the outermost layer sheet are sandwiched and fixed, and the outermost layer sheet is not bonded to the outermost layer sheet so that no gather is formed on the outermost layer sheet. The disposable wearing article according to the above.