JP2581497Y2 - Disposable diapers - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to, diapers for infants, training pants, for adults, or Ru is <br/> used as an incontinent person, it relates to a disposable diaper of the path Ntsu type.

[0002]

2. Description of the Related Art In most conventional disposable diapers, a so-called flat type disposable diaper in which a flat main body is applied to a wearer and stopped by a tape fastener on the wearer. In such a flat type diaper, at the time of disposal after use, after the diaper is rolled so as to wrap the excrement therein, the 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. Various techniques have been proposed as such a pants-type diaper, for example, those having gathers at a waist and a leg (JP-A-58-115106, JP-A-58-1151).
07, JP-A-62-231005, etc.). And these pants-type diapers are all worn in a standing position like ordinary underwear, and intended to be used for toilet training of not only infants but also for older children, or for incontinents and adults. Things.

[0004] However, these pants-type diapers cannot be stopped in a rolled state because of the absence of a tape fastener even if the diapers are rolled at the time of disposal after use. Excretions such as loose stool and diarrhea stool, which are highly susceptible, may be exposed, and there is also a problem in terms of sanitation during disposal.

In Japanese Patent Application Laid-Open Nos. Sho 62-69804 and Hei 3-176051, etc., tape fasteners are provided on both sides of the waist portion of the diaper, and the tape fasteners are used for waist adjustment and fastening at the time of disposal. Although a technique has been proposed, such a tape fastener is located at a position where it can be easily removed by an infant or a wearing caregiver during wearing, and thus there is a disadvantage that the diaper slips off accidentally. Further, there is a problem that the diaper provided with such a tape fastener loses the appearance of pants in appearance.

Accordingly, it is an object of the present invention to provide a pants-type disposable diaper which can be easily disposed of, can sufficiently satisfy sanitary conditions at the time of disposal, and does not impair the appearance during wearing. It is in.

[0007]

The present invention has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between these two sheets, and the front and rear waist portions are left and right. In the pants-type disposable diaper joined to each other, a tape fastener for fastening at the time of disposal is disposed in the central area in the width direction of the crotch portion of the diaper on the surface of the back sheet so that the length direction is oriented in the longitudinal direction of the diaper. The above object has been achieved by providing a disposable diaper characterized by being provided in (1).

[0008]

After use, the disposable diaper of the present invention is rolled up so that the diaper is wound in the longitudinal direction, fixed by a tape fastener and discarded. Accordingly, 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 the disposable diaper can be treated hygienically.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the disposable diaper of the present invention will be described in more detail with reference to the accompanying drawings. In the following explanation
The examples shown in FIGS. 1 and 2 are reference examples of the present invention.
The example shown in FIG. 7 is an embodiment of the present invention. Also, FIGS.
Is a diagram showing a tape fastener used in the above reference example
It is. In the embodiment of the present invention, the tape
Except for the locations where the fasteners are provided,
Yes, and as a tape fastener in the embodiment
Can be appropriately selected from those shown in FIGS.
it can. FIG. 1A is a perspective view showing the front side (ventral side) of the diaper in the reference example of the disposable diaper of the present invention,
FIG. 1B is a perspective view showing the back side (back side) thereof.
FIG. 2 is a development view of the disposable diaper shown in FIG. FIG. 3A is an enlarged perspective view of a tape fastener in the disposable diaper shown in FIG. 1, and FIG.
It is an enlarged perspective view which shows the aspect which makes it peel.

The disposable diaper 1 of the present embodiment is shown in FIG.
As shown in (A) and (B), a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorber 4 interposed between these sheets, and front and rear waist portions 5.
A and 5B are pants-type disposable diapers in which the left and right sides are respectively joined. Then, a tape fastener 10 for fastening at the time of disposal is disposed in the central area in the width direction of the back side of the diaper on the surface of the back sheet 3 , and the length direction of the tape fastener 10 is the length of the diaper.
It is provided to face the hand .

More specifically, in the disposable diaper 1 of this embodiment, as shown in FIGS. 1 and 2, the absorber 4 is formed in an hourglass shape in which the crotch region is narrowed, and the topsheet 2 and the back surface are formed. The crotch region of the sheet 3 is also curved as described above according to the shape of the absorber 4, and the absorber 4 is sandwiched and fixed between the top sheet 2 and the back sheet 3. Further, the waist portions 5A, 5B and the leg portion 6 at the front and rear in the peripheral portion of the absorber 4 are used to fit the wearer with the waist portions 5A, 5B and the leg portion 6 when the diaper is worn. An elastic elastic member 7 is provided fixed by the top sheet 2 and the back sheet 3. As shown in FIGS. 1A and 1B, the front waist portion 5A and the rear waist portion 5B are joined to each other on the right and left sides to form a joint portion 8, thereby forming a pants-like shape. The shape is.

The joint 8 is preferably adapted to be easily torn in the vertical direction, so that the disposable diaper can be easily torn at the joint without soiling the wearer's skin. The disposable diaper can be easily taken off and discarded. The joint 8
Is formed by bonding the front waist portion 5A and the rear waist portion 5B on the left and right sides of each other by using, for example, a hot-melt adhesive or a material that can be bonded by ultrasonic waves. It is preferable that the feel is flexible even after joining.

The topsheet 2 is preferably a liquid-permeable sheet that allows excrement to permeate into the absorber and has a feel similar to underwear. Examples of such a liquid-permeable sheet include a woven cloth and a nonwoven cloth. 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.

The back sheet 3 is preferably a stretched thermoplastic resin-added filler with a moisture-permeable liquid-impermeable sheet that allows vapor to permeate, and preferably has a feel similar to underwear. As such a liquid impermeable sheet, for example, a composite material of a film and a nonwoven fabric is preferably exemplified.

The absorbent 4 is preferably a combination of a high-molecular-weight water-absorbing polymer mainly composed of defibrated pulp, and a heat-treated mixture of a thermoplastic resin, cellulose fibers and a high-molecular-weight water-absorbing polymer. preferable. The high-molecular-weight water-absorbing 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 high-molecular water-absorbing polymer has a holding performance capable of absorbing and holding a liquid 20 times or more its own weight, and is preferably in the form of particles having a gelling property,
Examples of such a high-molecular-weight water-absorbing polymer include starch-acrylic acid (salt) graft copolymer and starch-
Preferred examples include a saponified acrylonitrile copolymer, a crosslinked product of sodium carboxymethyl cellulose, and an acrylic acid (salt) polymer.

The elastic elastic member 7 is preferably made of thread rubber, flat rubber, film-type rubber or film-like foamed polyurethane, and preferably has a stress of 70 to 100 g at 150% elongation. The elastic elastic member is preferably of a nonwoven fabric type having elasticity and air permeability.

Thus, the disposable diaper 1 of the present embodiment is
As shown in FIG. 1 (B), a central portion in the width direction of the diaper on the surface of the back sheet 3 on the back side of the diaper.
Located in, in Chuo-ku area extending in the longitudinal direction of the diaper, tape fastener of the waste at the stop wearing is provided. here
The “width direction” is shown in FIGS. 1B and 2 and the like.
As shown in the left and right directions when wearing, "longitudinal
"Direction" means the vertical direction when worn.

The above-mentioned tape fastener 1 in the present embodiment
0, the tape fastener 10 is
As shown in FIG. 3A, a fixing portion 11 is joined and fixed to the back sheet 3 and a fastening portion 12 for rolling and fastening the diaper when the diaper is discarded. The attachment portions 12 are respectively provided with the mounts 13 and 13 ′ and the mount 1.
Adhesive layers 14 and 14 'are formed by applying an adhesive on one surface of each of the adhesive layers 13 and 13', and the surface of the mount 13 in contact with the adhesive layer 14 'is subjected to a release treatment.

The fixing portion 11 has one end thereof mounted on the backing sheet 1.
The adhesive portion 12 is bent at one end toward the adhesive layer 14 '. Then, the adhesive layer 14 in the bent portion of the fixing portion 11 and the adhesive layer 14 'of the fixing portion 12 are in contact with each other, and the fixing portion 11 and the fixing portion 12 are fixed. The adhesive layer 14 ′ of the fixing portion 12 and the surface of the mount 13 on which the release processing has been performed on the mount 13 are in contact with each other in an adhesive and peelable manner. In addition, the fastening portion 12
3 is in contact with the mounting paper 13 at the other end of the fastening portion 12 to form a knob 15, and as shown in FIG. 3B, the knob 15 is pulled up in the direction of the arrow. Thereby, the fastening part 12 can be peeled off from the fixing part 11.

As a material for forming the mounts 13 and 13 ', a film, paper, nonwoven fabric, or a composite material thereof can be preferably used. In addition, the fastening portion 12
The backing sheet 13 ′ is particularly preferably formed of the same material as the back sheet 3, whereby the outer surface of the tape fastener 10 is similar to the outer surface of the diaper, so that the tape fastener is inconspicuous in appearance. It will be an excellent diaper. In this case, the mount 13 of the fixing portion 11
The mount 13 ′ of the fastening portion 12 can be formed of different materials.

The pressure-sensitive adhesive forming the pressure-sensitive adhesive layers 14 and 14 'may be the same as the material used for ordinary tape fasteners for disposable diapers.
Ethylene-butylene-styrene block copolymer (SE
BS), a styrene-based block polymer such as styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene copolymer (SBS), or an adhesive mainly composed of natural rubber, butadiene, acrylate ester, etc. And the like. Further, the above-mentioned peeling treatment is performed according to a conventional method.

In order to join and fix the tape fastener 10 to the disposable diaper 1, the adhesive layer 14 of the fixing portion 11 of the tape fastener 10 is attached to the back sheet 3.
1B in the direction shown in FIG.

Further, as another example of the tape fastener according to the present invention, for example, a tape fastener having a structure shown in FIGS. Here, FIGS. 4 to 6 are enlarged perspective views showing another example of the tape fastener in the disposable diaper of the present invention. The tape fastener shown in FIGS. 4 to 6 is formed in the same manner as the tape fastener 10 except for the points that are particularly described.

In the tape fastener 10A shown in FIG. 4, a knob 15A is formed by providing a portion to which no adhesive is applied on the fastening portion 12A. The tape fastener 10B shown in FIG. 5 has a knob 15B formed by attaching another member to one end of the fastening portion 12B. The tape fastener 10C shown in FIG. 6 has a fixing portion 11C and a fastening portion 12C formed by bending an integrated mount 13C, and a portion where no adhesive is applied is provided at an end of the fastening portion 12C. A knob 15C is formed.

Further, the tape fastener used in the present invention may be formed of Velcro tape (registered trademark) comprising two male and female supports provided with locking members, which are hooked to each other. it can. In this case, when the diaper is rolled, another female (male) support is installed at a portion corresponding to the tape fastener, and the support (female or male) and the support of the tape fastener (male) are mounted. Or female). When the outer layer of the back sheet 3 is a non-woven fabric, the tape fastener can be formed only by male members.

FIG. 7 shows an example of a disposable diaper according to the present invention . Here, FIG. 7 (A) is a perspective view showing the front side in the real施例disposable diaper of the present invention, FIG. 7 (B) is a perspective view showing the back side. In the disposable diaper 20 shown in FIGS. 7A and 7B, a tape fastener 30 is provided in a crotch region (crotch portion) of the diaper 20. As described above, by providing the tape fastener 30 in the crotch region of the diaper 20, the tape fastener is hidden due to the constriction of the crotch, so that the appearance can be further improved, and the conventional disposable diaper having no tape fastener can be provided. The same appearance can be obtained.

Since the disposable diaper 1 of this embodiment is configured as described above, the disposable diaper 1 is excellent in disposability after use as described in detail below with reference to FIGS. 8 (A) and 8 (B). is there. Here, FIG. 8A is a schematic perspective view showing an aspect in which the diaper is rolled when the diaper is discarded, and FIG. 8B shows an aspect in which the rolled diaper is fixed with a tape fastener. It is a schematic perspective view. The disposable diaper 1 is used in the same manner as this type of pants-type disposable diaper. Then, after use, FIG.
As shown in FIG. 8, after the diaper is rolled in the longitudinal direction and the fastening portion 12 of the tape fastener 10 is peeled off from the fixing portion 11, the adhesive of the fastening portion 12 is removed as shown in FIG. The diaper can be easily and sanitarily disposed of by fixing the rolled state of the diaper by fixing the layer 14 'to the front and rear waist portions 5A and 5B.
8 (A) and 8 (B) show the disposal method of rolling the diaper from the crotch, but the disposable diaper of the present invention can be disposed of by other various methods. Arbitrary disposal operations can be performed, such as rolling from the waist of the diaper and fastening the crotch of the diaper with a tape fastener.

[0028]

EFFECT OF THE INVENTION The disposable diaper of the present invention can be easily disposed of and can sufficiently satisfy sanitary conditions at the time of disposal, and does not impair the appearance during wearing. Therefore, the disposable diaper according to the present invention can be wrapped and discarded as it is by being rolled up after use, sealed inside, and fastened with a tape fastener.

[Brief description of the drawings]

FIG. 1 (A) is a perspective view showing the front side (ventral side) of a diaper in a reference example of a disposable diaper of the present invention;
FIG. 1B is a perspective view showing the back side (back side).

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

3 (A) is an enlarged perspective view of a tape fastener in the disposable diaper shown in FIG. 1, and FIG. 3 (B)
FIG. 3 is an enlarged perspective view showing a mode of peeling.

FIG. 4 is an enlarged perspective view showing another example of the tape fastener in the disposable diaper of the present invention.

FIG. 5 is an enlarged perspective view showing another example of the tape fastener in the disposable diaper of the present invention.

FIG. 6 is an enlarged perspective view showing another example of the tape fastener in the disposable diaper of the present invention.

[7] FIG. 7 (A) is a perspective view showing the front side of the diaper in the real施例disposable diaper of the present invention, FIG. 7
(B) is a perspective view showing the back side.

FIG. 8A is a schematic perspective view showing a mode in which the diaper is rolled when the diaper is discarded, and FIG.
(B) is a schematic perspective view which shows the aspect which fixes a rolled-up diaper with a tape fastener.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 5A Waist part before 5A Waist part after 6B Leg part 7 Elastic expansion and contraction member 8 Joining part 10 Tape fastener 11 Fixing part 12 Fastening part 13 Backing paper 14 Adhesive part 15 Knob

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 58-22908 (JP, U) Japanese Utility Model Hei 5-21935 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A pants-type disposable having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the two sheets, and the front and rear waist portions are joined to the right and left, respectively. In the diaper, a tape fastener for fastening at the time of disposal is provided in a central region in the width direction of the crotch portion of the diaper on the surface of the back sheet so that the length direction thereof is oriented in the longitudinal direction of the diaper. Disposable diapers.