JPH0675444U - Disposable diapers - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a pants-type disposable diaper that can be easily disposed of, can sufficiently satisfy the sanitary aspects at the time of disposal, and does not impair the appearance during wearing. [Structure] A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between these sheets,
Further, in the pants-type disposable diaper in which the front and rear waist portions are joined respectively to the left and right, a tape fastener for fastening at disposal is provided in a central area extending in the longitudinal direction of the surface of the back sheet. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disposable diaper for use in infant diapers, training pants, adults, or incontinence, and more particularly to a pants-type disposable diaper.

[0002]

[Problems to be solved by conventional techniques and devices]

 Most of the conventional disposable diapers are so-called flat type disposable diapers which are fixed to the wearer with a tape fastener after a flat body is applied to the wearer. In such a flat type diaper, at the time of disposal after use, the diaper was rolled up so as to wrap the excrement inside and then the diaper was fixed with a tape fastener and discarded.

On the other hand, in recent years, a so-called pants-type diaper has been developed in which the side portions are joined and fixed in advance without using a tape fastener. As such a pants-type diaper, various technologies have been proposed, for example, those having gathers on the waist and legs (Japanese Patent Laid-Open Nos. 58-115106 and 58-115). 107, JP-A-62-231005, etc.). All of these pants-type diapers were intended to be worn in the upright position, just like normal underwear, and for toilet training not only for infants but also for older children, or for incontinence and adult use. It is a thing.

However, these pant-type diapers cannot be stopped in the rolled state because they do not have tape fasteners even when the diaper is rolled up during the disposal process after use, and it is difficult to dispose of it. Excretions such as loose stools and diarrhea stools, which have high fluidity, may be exposed, and there was a problem in terms of hygiene during disposal.

Further, in JP-A-62-69804 and JP-A-3-176051, tape fasteners are provided on both sides of a waist portion of a diaper, and the tape fasteners are used for waist adjustment and stop-fitting when discarded. Technology has been proposed, but since such a tape fastener is easily removed by an infant or a wearable caregiver during wearing, it has the disadvantage that the diaper may slip off accidentally. Furthermore, the diaper provided with such a tape fastener has a problem that it loses the appearance of pants in appearance.

Therefore, an object of the present invention is to provide a pants-type disposable diaper that can be easily disposed of, can fully satisfy the sanitary aspects at the time of disposal, and does not impair the appearance during wearing. To do.

[0007]

[Means for Solving the Problems]

 The present invention has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between these sheets, and the front and rear waist portions are joined to the left and right sides, respectively. In the disposable diaper, the above-mentioned object is achieved by providing a disposable diaper, which is characterized in that a tape fastener for disposing at the time of disposal is provided in a central area extending in the longitudinal direction of the surface of the back sheet. is there.

[0008]

[Action]

 After use, the disposable diaper of the present invention is rolled by rolling the diaper in the longitudinal direction, fixed by a tape fastener, and discarded. Therefore, the disposable diaper can be easily disposed of, and since the excrement can be enclosed in the rolled diaper and covered with the back sheet, it can be treated hygienically.

[0009]

【Example】

 Hereinafter, the disposable diaper of the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 (A) is a perspective view showing the front side (abdominal side) of the diaper in one embodiment of the disposable diaper of the present invention, and FIG. 1 (B) is a perspective view showing its back side (dorsal side). 2 is a development view of the disposable diaper shown in FIG. Further, FIG. 3 (A) is an enlarged perspective view of the tape fastener in the disposable diaper shown in FIG. 1, and FIG. 3 (B) is an enlarged perspective view showing a manner of peeling the tape fastener.

As shown in FIGS. 1 (A) and 1 (B), the disposable diaper 1 of the present embodiment is provided with a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3 and both sheets. It is a pants-type disposable diaper that has an absorber 4 and has front and rear waist portions 5A and 5B joined to the left and right respectively. Then, a tape fastener 10 for wearing at disposal is disposed in a central area extending in the longitudinal direction of the surface of the backsheet 3.

More specifically, in the disposable diaper 1 of the present embodiment, as shown in FIGS. 1 and 2, the absorbent body 4 is curved and formed in an hourglass shape in which the crotch region is twisted, and the surface sheet 2 and The crotch region of the backsheet 3 is also curved according to the shape of the absorber 4 as described above, and the absorber 4 is sandwiched and fixed by the topsheet 2 and the backsheet 3. Further, the front and rear waist portions 5A and 5B and the leg portion 6 in the peripheral portion of the absorbent body 4 are for fitting the wearer to the waist portions 5A and 5B and the leg portion 6 when wearing a diaper. The elastic stretchable member 7 is provided so as to be fixed by the topsheet 2 and the backsheet 3. The front waist portion 5A and the rear waist portion 5B are joined to each other on the left and right sides to form a joint portion 8 as shown in FIGS. 1 (A) and 1 (B). It has a shape of a shape.

It is preferable that the joint 8 can be easily torn in the vertical direction, so that the disposable diaper can be easily torn at the joint without soiling the skin of the wearer. Yes, disposable diapers can be easily removed and discarded. The joining portion 8 is joined to the front waist portion 5A and the rear waist portion 5B on the left and right sides by using, for example, a hot-melt adhesive or a material that can be joined by ultrasonic waves. However, it is preferable that it can be formed and has a soft feel even after the joining.

The surface sheet 2 is preferably a liquid-permeable sheet that allows excrement to permeate into the absorbent body and has a feeling close to that of underwear. As such a liquid-permeable sheet, for example, a woven cloth can be used. Nonwoven fabrics, porous films and the like are preferable. In addition, a method of applying a hydrophobic compound such as a silicone oil or paraffin wax to the periphery of the surface sheet 2 or a hydrophilic compound such as an alkyl phosphate ester is previously applied to the entire surface and the periphery is washed with warm water. Depending on the method, water repellent treatment can be performed to prevent leakage due to bleeding of urine or the like around the periphery.

The back sheet 3 is preferably a stretched, liquid-impermeable sheet that is permeable to vapor and has a filler added to a thermoplastic resin, and preferably has a feel similar to underwear. As such a liquid impermeable sheet, for example, a composite material of a film and a non-woven fabric is preferably cited.

The absorbent body 4 is preferably a combination of a high-molecular water-absorbing polymer mainly composed of defibrated pulp, and a heat-treated mixture of thermoplastic resin, cellulose fiber and high-polymer water-absorbing polymer. Is preferred. The high-molecular 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 a mixture with pulp. Further, the high molecular weight water-absorbing polymer is preferably in the form of particles having a retaining property capable of absorbing and retaining a liquid 20 times or more its own weight and having a gelling property. Preferred examples include starch-acrylic acid (salt) graft copolymers, saponified starch-acrylonitrile copolymers, cross-linked sodium carboxymethyl cellulose, acrylic acid (salt) polymers, and the like.

The elastic elastic member 7 is preferably a rubber thread, a flat rubber, a film type rubber or a film-like polyurethane foam, and has a stress at 70% elongation of 70 to 100 g. The elastic elastic member is preferably of a non-woven fabric type having elasticity and gas permeability.

Thus, as shown in FIG. 1B, the disposable diaper 1 of the present embodiment has a central area (width of the diaper extending in the longitudinal direction of the surface of the back sheet 3 on the back side of the diaper. A tape fastener is provided at the center in the direction) to wear it at the time of disposal.

The tape fastener 10 in this embodiment will be described in detail. As shown in FIG. 3 (A), the tape fastener 10 includes a fixing portion 11 joined and fixed to the back sheet 3, and a diaper when disposing of the diaper. The fixing portion 11 and the fastening portion 12 are formed by rolling a sticking member 12 on the one side of the mounts 13 and 13 'and the other side of the mounts 13 and 13', respectively, and applying an adhesive agent on the one side. The surface of the mount 13 that is in contact with the adhesive layer 14 ′ is subjected to a peeling treatment.

One end of the fixing portion 11 is bent toward the mount 13 side, and one end of the adhesive portion 12 is bent toward the adhesive layer 14 ′. Then, the pressure-sensitive adhesive layer 14 in the bent portion of the fixing portion 11 and the pressure-sensitive adhesive layer 14 ′ of the fastening portion 12 are brought into contact with each other to fix the fixing portion 11 and the fastening portion 12. Further, the adhesive layer 14 'of the fastening portion 12 and the surface of the mount 13 of the fixing portion 11 which has been subjected to the peeling treatment are in contact with each other in an adhesive and peelable manner. Further, the end portion of the fastening portion 12 is brought into contact with the mount 13 at the other end portion of the fastening portion 12 to form a knob 15, and as shown in FIG. 3 (B), By pulling up the knob 15 in the direction of the arrow, the fastening portion 12 can be separated from the fixing portion 11.

As a material for forming the mounts 13 and 13 ′, films, papers, non-woven fabrics, or composite materials thereof can be preferably used. Further, it is particularly preferable that the above-mentioned mount 13 'of the fastening portion 12 is formed of the same material as the back sheet 3, so that the outer surface of the tape fastener 10 is similar to the outer surface of the diaper. Next to it, the tape fastener is inconspicuous and makes an excellent diaper in appearance. In this case, the mount 13 of the fixing portion 11 and the mount 13 'of the fastening portion 12 can be made 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 the tape fastener of a normal disposable diaper, for example, a styrene-ethylene-butylene-styrene block copolymer ( SEBS), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene copolymer (SBS) and other styrene block polymers, or natural rubber, butadiene, acrylic ester, etc. Examples thereof include adhesives. The peeling treatment is performed according to a conventional method.

In order to bond 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 central area of the front surface of the back sheet 3 as shown in FIG. It can be bonded and fixed by sticking in the direction shown in).

Further, as another example of the tape fastener in the present invention, for example, a tape fastener having a configuration shown in FIGS. 4 to 6 can be cited. Here, FIGS. 4 to 6 are enlarged perspective views showing other examples of the tape fastener in the disposable diaper of the present invention. The tape fasteners shown in FIGS. 4 to 6 are formed in the same manner as the tape fastener 10 described above, unless otherwise specified.

In the tape fastener 10A shown in FIG. 4, the knob 15A is formed by providing a portion to which the adhesive is not applied on the fastening portion 12A. The tape fastener 10B shown in FIG. 5 has a tab 15B formed by adhering 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 integral mount 13C, and a portion to which an adhesive is not applied is provided at the end portion of the fastening portion 12C. The knob 15C is formed.

Further, the tape fastener used in the present invention may be formed by a Velcro tape (registered trademark) or the like, which is configured to be hooked to each other and is composed of two male and female supports having locking members. it can. In this case, when the diaper is rolled up, another female (male) support is installed at a site corresponding to the tape fastener, and the support (female or male) and the tape fastener support ( (Male or female) should be locked. Further, when the outer layer of the back sheet 3 is a non-woven fabric, the tape fastener can be formed only by male.

Another example of the disposable diaper of the present invention is the diaper shown in FIG. Here, FIG. 7 (A) is a perspective view showing the front side of another embodiment of the disposable diaper of the present invention, and FIG. 7 (B) is a perspective view showing the back side thereof. In the disposable diaper 20 shown in FIGS. 7A and 7B, the tape fastener 30 is provided in the crotch region of the diaper 20. By providing the tape fastener 30 in the crotch region of the diaper 20 as described above, the tape fastener is hidden due to the constriction of the crotch portion, so that the appearance can be further improved and the conventional disposable diaper without the tape fastener can be provided. It can have an equivalent appearance. Also, in the disposable diaper of the present invention, the tape fastener 30 'can be provided at or near the waist portion of the diaper as shown by the dotted line in FIG. 7 (B), which minimizes the length of the tape fastener. can do.

Since the disposable diaper 1 of the present embodiment is configured as described above, it is excellent in disposability after use as described in detail below with reference to FIGS. 8 (A) and 8 (B). is there. Here, FIG. 8 (A) is a schematic perspective view showing a mode of rolling the diaper when discarding the diaper, and FIG. 8 (B) secures the rolled diaper with a tape fastener. It is a schematic perspective view which shows an aspect. The disposable diaper 1 is used in the same manner as this type of pants-type disposable diaper. After use, as shown in FIG. 8 (A), the diaper is rolled in its longitudinal direction to separate the fastening portion 12 of the tape fastener 10 from the fixing portion 11, and then, as shown in FIG. ), The adhesive layer 14 'of the fastening portion 12 is fastened to the front and rear waste portions 5A and 5B to fix the rolled state of the diaper. It can be disposed of hygienically. 8 (A) and 8 (B) show the method of discarding the diaper by rolling it from the crotch part, the disposable diaper of the present invention can be disposed of by various other methods. For example, it is possible to carry out any disposal operation such as rolling from the waist of the diaper and fixing the crotch of the diaper with a tape fastener.

[0028]

[Effect of device]

 INDUSTRIAL APPLICABILITY The disposable diaper of the present invention can be easily disposed of, can sufficiently satisfy the sanitary aspects at the time of disposal, and does not impair the appearance during wearing. Therefore, the disposable diaper of the present invention can be discarded after being used by wrapping the excrement as it is by rolling it, sealing the inside, and fixing it with a tape fastener.

[Brief description of drawings]

FIG. 1 (A) is a perspective view showing a front side (abdominal side) of a diaper in an embodiment of a disposable diaper of the present invention, and FIG. 1 (B) shows a back side (dorsal side) thereof. It is a perspective view.

2 is an exploded view of the disposable diaper shown in FIG. 1. FIG.

3 (A) is an enlarged perspective view of a tape fastener in the disposable diaper shown in FIG. 1. FIG.
[Fig. 4] is an enlarged perspective view showing the manner 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.

FIG. 7 (A) is a perspective view showing the front side of a diaper in another embodiment of the disposable diaper of the present invention.
(B) is a perspective view showing the back side.

FIG. 8 (A) is a schematic perspective view showing a mode of rolling a diaper when discarding the diaper.
(B) is a schematic perspective view showing a mode of fastening a rolled diaper with a tape fastener.

[Explanation of symbols]

 1 Disposable diapers 2 Topsheet 3 Backsheet 4 Absorber 5A Front waist 5B Rear waist 6 Legs 7 Elastic elastic members 8 Joints 10 Tape fasteners 11 Fixing parts 12 Fastening parts 13 Mount 14 Adhesive parts 15 Knobs

Claims (4)

[Scope of utility model registration request] 1. A pants-type disposable having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body interposed between these sheets, and front and rear waist portions thereof are joined to the left and right respectively. In the diaper, in the central area extending in the longitudinal direction of the surface of the back sheet,
A disposable diaper that is equipped with a tape fastener that is worn for disposal. 2. The disposable diaper according to claim 1, wherein the central area is the central area of the crotch of the diaper. 3. The disposable diaper according to claim 1, wherein the central area is a central area on the back side of the diaper. 4. The disposable diaper according to claim 1, wherein the central area is a central area of a waist portion of the diaper.