JP2587598Y2 - Disposable diapers - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a diaper for infants, training pants, disposable diapers for incontinent persons or adults, and more particularly to a pants-type disposable diaper.

[0002]

2. Description of the Related Art In most conventional disposable diapers, a so-called flat disposable diaper in which a flat main body is applied to a wearer and then stopped by a tape fastener on the wearer is used. In such a flat type diaper, at the time of disposal after use, the diaper is rolled so that the excrement is wrapped inside, and then the rolled diaper is stopped with a tape fastener and discarded.

On the other hand, in recent years, a so-called pants-type diaper has been developed in which side portions are fixed in advance without using a tape fastener. As such a pants-type diaper, for example, a waist portion and a leg portion provided with a gather portion (Japanese Patent Application Laid-Open No. 62-69804). Various types have been proposed, such as those having improved absorption performance by eliminating gaps and looseness (JP-A-62-231005). All of these pants-type diapers are worn in a standing position, similar to normal underwear, and are intended for use in toilet training for infants as well as for older children, or for incontinents and adults. is there.

[0004]

[Problems to be Solved by the Invention] However, conventional pants-type diapers cannot be stopped in a rolled-up state because there is no tape fastener even if the diapers are rolled at the time of disposal after use. Excretion such as loose stool and diarrhea stool with high fluidity may be exposed, and there is also a problem in hygiene at the time of disposal.

On the other hand, Japanese Patent Laying-Open No. 62-69804 discloses a pants-type diaper having a tape fastener similar to a flat-type tape fastener, but the tape fastener is provided only for disposal. However, there is an inconvenience that the cost increases. In addition, the accessory attached to the outside may be removed while the infant is wearing, or may be accidentally removed by the wearer. Further, there is a problem that such an accessory impairs the appearance and loses the quality of pants.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pants-type disposable diaper which can be easily disposed of, can sufficiently satisfy hygiene during disposal, and does not deteriorate its appearance during wearing. It is in.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber located between these sheets, and a front and rear portion located around the absorber. The waist gathers are formed in a pants-type disposable diaper having elastic elastic members that form gathers at the waist portion and the left and right leg portions, and the front and rear waist portions are fixedly joined at both left and right ends. Disposal processing of the diaper on the top sheet between the elastic elastic member and the longitudinal end of the absorber along the extending direction of the elastic elastic member forming the waist gather.
The slit for disposal of the diaper is sometimes broken
A torn portion to be formed on the face sheet is provided, and the torn portion is
Approximately equal to the width of the absorber along the short direction (width direction)
The above object has been achieved by providing a disposable diaper characterized by being formed to be longer than its length or its width .

[0008]

According to the disposable diaper of the present invention, at the time of disposal after use, the portion to be broken is broken, a slit is formed in the topsheet, the disposable diaper is rolled, and then the rolled disposable diaper is placed on the surface. The back sheet is turned upside down so as to be exposed to the front side through a slit formed in the sheet, and is mainly wrapped by the back sheet. Therefore, the disposable diaper can be easily disposed of and the excrement can be confined in the rolled diaper and covered with the back sheet, so that sanitary treatment can be performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing one embodiment of the disposable diaper according to the present invention, and FIG.
FIG. 3 is a front plan view showing a state in which the disposable diaper shown in FIG. 3 is developed, and FIG. 3 is a perspective view showing an operation when processing the disposable diaper of this embodiment, showing the developed state.
FIG. 4 is a perspective view showing an operation when processing the disposable diaper according to the present embodiment, and shows an initial state. FIG. 5 is an operation when processing the disposable diaper according to the present embodiment, and shows an intermediate state. FIG. 6 is a perspective view showing an operation when processing the disposable diaper according to the present embodiment, showing a final state, and FIG. 7 is a perspective view showing a disposable diaper according to another embodiment of the present invention. FIG. 8 is a perspective view showing another operation when processing the disposable diaper shown in FIG. 7, which is another operation when processing the disposable diaper shown in FIG. FIG. 9 is a front plan view showing a state in which a disposable diaper according to another embodiment of the present invention is developed, and FIG. 10 is a view showing a state in which a disposable diaper according to another embodiment of the present invention is developed. It is a top view on the surface side.

The disposable diaper 1 according to the present embodiment comprises a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3,
An absorber 4 located between these two sheets, and elastic elastic members 8 and 9 forming respective gathers at front and rear waist portions 5a and 5b and left and right leg portions 6 and 7 located around the absorber 4 are provided. In a pants-type disposable diaper having front and rear waist portions 5a and 5b joined at both right and left ends, an elastic elastic member 8 and a longitudinal end of the absorber 4 forming the waist gathers. The diaper 1 is disposed along the extending direction of the elastic elastic member forming the waist gather on the top sheet between the diaper 1 and the diaper 1.
The diaper 1 is broken at the time of disposal.
A perforation 11 is provided as a part to be broken to form a sheet on the topsheet 2 .

The topsheet 2 is preferably a liquid-permeable sheet that allows excrement to permeate into the absorber 4 and has a feeling similar to that of underwear. Examples of such a liquid-permeable sheet include woven cloth, nonwoven cloth, and the like. A porous film or the like is preferred. Also, a method of applying a hydrophobic compound such as a silicone oil agent or paraffin wax to the peripheral portion of the topsheet 2 or a method of applying a hydrophilic compound such as an alkyl phosphate ester in advance,
Water repellency treatment is performed by a method of washing the periphery with warm water, so that leakage due to bleeding of urine or the like at the periphery can be prevented.

The back sheet 3 is made of a liquid-impermeable and vapor-permeable sheet which is made by adding a filler to a thermoplastic resin and stretched, and has a feeling similar to underwear, for example, a film and a nonwoven fabric. And a composite material of a film and a woven fabric.

The absorber 4 is formed in the shape of an hourglass with a substantially constricted center, and is preferably made of a material mainly composed of defibrated pulp and a high-molecular water-absorbing polymer.
In addition, those obtained by heat-treating a mixture of a thermoplastic resin, a cellulose fiber, or a high-molecular-weight water-absorbing polymer are preferable.
The location of the high-molecular-weight water-absorbing polymer may be any of the upper layer, the middle layer, and the lower layer, and may be a mixture with pulp.

The elastic members 8 and 8 stretched over the front and rear waist portions 5a and 5b and the elastic members 9 stretched over the leg portions 6 and 7 have an expansion ratio of 200% or more, and are made of natural rubber or synthetic rubber. It is continuously joined to the top sheet 2 and the back sheet 3 as a plurality of filaments or bands made of rubber, polyurethane foam, or the like. The elastic members 8 and 9 form gathers at the front and rear waist portions 5a and 5b and the leg portions 6 and 7, respectively.

The perforation 11 is formed only on the top sheet 2 in the middle between the elastic elastic member 8 at the waist and the longitudinal end of the absorber 4. As shown in FIG. 3, the front and rear waist portions 5a and 5b are formed.

The perforations 11 are formed with an appropriate size and spacing so that the perforations 11 are not broken during normal wearing, but are broken by pulling the topsheet 2 with an appropriate force after use of the disposable diaper. I have. Further, the perforations 11 are provided longer than the width of the absorber 4 along the lateral direction thereof,
It extends to just before the waist joint. It is desirable to reinforce both ends of the break portion of the perforation 11 with a hot melt adhesive so as not to break any more. The disposable diaper 1 according to the present embodiment configured as described above is used as a normal pants-type diaper when worn, as a waist portion 5a, 5a.
The entire disposable diaper 1 is pulled up to the wearer's waist through a leg through each of the b and the leg opening portions 6 and 7, and is worn.

Next, the operation of disposing the disposable diaper according to the present embodiment will be described. After the wearer has excreted excrement, the disposable pants 1 are taken off, the waist side joints 12, 12 are torn, and as shown in FIG. 3, the pants-type diapers are deployed on the front side and the rear side. . Next, the slit 13 is formed by tearing one of the perforations 11.

Next, as shown in FIG. 4, both side edges of the front waist portion 5a where the slit 13 is not formed are folded inward so as to overlap with each other, and as shown in FIG. Round from the part. Then, so as to turn over the backsheet 3 by opening the slits 13, i.e., the back surface sheet
The rounded portion is wrapped mainly by the back sheet so that the inner surface of the sheet 3 is exposed to the outer surface .
Of course, as a disposal operation, after removing the disposable pants 1, the perforations are torn to form the slits 13,
The diaper is rolled without tearing and unfolding the joint portions 12, 12 on the waist side to form the waist portions 5a, 5b.
It may be more fixed to the elastic member 8, 8 forming the gathers. Further, as shown in FIG. 6, it may be more fixed to the elastic member 8, 8 crumpled diaper tearing with backsheet when tearing the perforations.

According to the present embodiment, the slits 13 can be easily formed by tearing the perforations 11, whereby the diaper can be easily disposed of and the excrement can be confined in the rolled diaper. , Can be treated hygienically. Further, since the slits 13 are merely formed in the topsheet 2, the appearance is not impaired.

Next, another embodiment of the present invention will be described with reference to FIGS. In another embodiment, the to-be-fractured portion is formed by a perforation as in the above-described embodiment, and the perforation is torn to form a slit 13. The size of the slit is substantially the same as the width of the absorber 4. Are shorter than those in the above-described embodiment. Then, in the present embodiment, the diaper is flattened so that the front side and the rear side are combined from the use state of the diaper shown in FIG. 1, and as shown in FIG. 4, the diaper is rounded from the crotch side toward the waist opening.

The slit 13 is opened so that the back sheet 3 is turned over.
In this case, as shown in FIG. 8, the process is performed in such a manner that the distal end portion rounded into a rod shape is inserted into the slit 13. In this embodiment, since the rod 13 is passed through the slit 13 from the tip, the opening of the slit 13 is relatively small and the perforation can be shortened.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention. For example, as shown in FIG. 9, the to-be-fractured portion has a slit 13 formed in the topsheet 2 in advance, and a nonwoven fabric sheet 14 covering the slit 13 is stuck on the topsheet 2. You may. In this case, when the disposable diaper is discarded, the slit 13 is formed by peeling off the nonwoven fabric sheet 14.

As shown in FIG. 10, a slit 13 is formed in the topsheet 2 in advance, and the slit 13 is covered with a hydrophobic nonwoven fabric 15.
5 is formed by folding the back sheet 3 on the top sheet 2 so that the protruding portion covers the slits 13 of the top sheet 2 so that the back sheet 3 is longer than the end of the waist opening. In this case, the hydrophobic nonwoven fabric 15 is pushed up toward the waist opening end to expose the slit 13. Slit 1 like this
3 is covered with the hydrophobic nonwoven fabric 15, it is possible to prevent exudates from leaking from the waist opening when the disposable diaper is worn.

Furthermore, the portion to be broken may be any material that can be easily torn, and another material that is easily torn may be used, or the nonwoven fabric of the topsheet may be sparsely formed.

[0025]

According to the disposable diaper of the present invention, disposal can be facilitated, hygiene at the time of disposal can be sufficiently satisfied, and the appearance is not impaired during wearing.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of the disposable diaper of the present invention.

FIG. 2 is a front plan view showing a state where the disposable diaper shown in FIG. 1 is developed.

FIG. 3 is a perspective view showing an operation when processing the disposable diaper according to the present embodiment and showing an unfolded state.

FIG. 4 is a perspective view showing an operation when processing the disposable diaper according to the present embodiment and showing an initial state.

FIG. 5 is a perspective view showing an operation during processing of the disposable diaper according to the present embodiment, showing an intermediate state.

FIG. 6 is a perspective view showing an operation at the time of processing the disposable diaper according to the present embodiment and showing a final state.

FIG. 7 is a perspective view showing another operation when processing a disposable diaper according to another embodiment of the present invention, showing an initial state.

FIG. 8 is a perspective view showing another operation when processing the disposable diaper shown in FIG. 7, and showing an intermediate state thereof.

FIG. 9 is a front plan view showing a state in which the disposable diaper according to another embodiment of the present invention is developed.

FIG. 10 is a front plan view showing a state where a disposable diaper according to another embodiment of the present invention is developed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 5a Waist part (front side) 5b Waist part (rear side) 8 Elastic member 11 Perforation (fracture part) 13 Slit

Continuation of the front page (56) References JP-A-63-295704 (JP, A) JP-A-60-2224 (JP, A) JP-A-61-28002 (JP, A) JP-A-59-82403 (JP) , A) Fully open sho 60-45311 (JP, U) Fully open sho 62-182910 (JP, U) Fully open flat 2-55937 (JP, U) Fully open flat 3-18832 (JP, U) Real open flat 3-18831 (JP, U) Japanese Utility Model Showa 60-102202 (JP, U) Japanese Utility Model Showa 50-53138 (JP, U) Japanese Utility Model 2-69906 (JP, U) Japanese Utility Model 4-117618 (JP, U) U) Japanese Utility Model 5-219350 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) A61F 5/44, 13/15

Claims (3)

(57) [Scope of request for utility model registration] 1. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber located between these two sheets,
In a pants-type disposable diaper having elastic elastic members forming gathers in front and rear waist portions and left and right leg portions located around the absorber, and front and rear waist portions bonded and fixed at both left and right ends, respectively. The topsheet between the elastic elastic member forming the waist gather and the longitudinal end of the absorber,
Along the extending direction of the elastic elastic member forming the waist gather, the diaper is broken during disposal processing.
Forming a slit for disposal of the diaper in the topsheet
A breakable portion is provided, and the breakable portion is a short side of the absorber.
A shape that is approximately the same or longer than its width along the direction
Disposable diapers characterized by being made . 2. The disposable diaper according to claim 1, wherein the portion to be broken is a perforation. 3. The fractured portion includes a slit formed in the topsheet, and a slit formed on the topsheet covering the slit .
2. The disposable diaper according to claim 1, comprising a covering sheet attached thereon .