JPH0810305Y2 - Disposable diapers - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable diaper used as a diaper for infants, training pants, an adult, or an incontinent person, and more particularly to a pants-type disposable diaper.

[0002]

2. Description of the Related Art 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 discarding after use, the diaper was rolled 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 techniques have been proposed, for example, those having gathers on the waist and leg portions (Japanese Patent Laid-Open Nos. 58-115106 and 58-1151).
No. 07, JP-A No. 62-231005, etc.). All of these pants-type diapers were intended to be worn in an upright position like normal underwear, for toilet training not only for infants but also for older children, or for incontinence and adults. It is a thing.

However, these pants-type diapers cannot be stopped in a rolled state because they do not have tape fasteners even if the diaper is rolled up during the disposal process after use. Excretion such as loose stools and diarrhea stools, which are highly prone, may be exposed, and there was a problem in hygiene during disposal.

Further, in JP-A-62-69804 and JP-A-3-176051, tape fasteners are provided on both sides of the waist portion of the diaper, and the tape fasteners are used for waist adjustment and stop wear at the time of disposal. Techniques have been proposed, but since such a tape fastener is located at a position where an infant or a caregiver can easily remove it during wearing, there is a disadvantage that the diaper slips off accidentally. Furthermore, the diaper provided with such a tape fastener has a problem in that it loses the appearance of pants in appearance.

Therefore, an object of the present invention is to provide a pants-type disposable diaper which can be easily disposed of and can sufficiently satisfy the hygiene aspect 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 sheets, and the front and rear waist portions are left and right respectively. In a joined pants-type disposable diaper, in the widthwise central part of the back side and opening of the waist part.
To the back side sheet surface in the lower portion of the fixing region of the resilient and elastic members of rim, a strip-like tape fastener of the diaper disposal during stop wearing, the length direction in the vertical direction of the diaper
Folded one end thereof fixed and the longitudinal direction towards
Is located inside the back side of the
The boop fastener is used when disposing of the free end of the diaper.
And the fastening part is raised when it is extended.
It is a length that can be located beyond the opening edge of the waist.
The above object is achieved by providing a disposable diaper characterized by the above.

[0008]

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

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The disposable diaper of the present invention will be described in more detail below with reference to the accompanying drawings. FIG. 1 is a perspective view showing the back side (back side) of the diaper in one embodiment of the disposable diaper of the present invention. 2 (A) is an enlarged perspective view of the tape fastener in the disposable diaper shown in FIG. 1, and FIG. 2 (B) is an enlarged perspective view showing the manner of peeling the tape fastener.

As shown in FIG. 1, the disposable diaper 1 of this embodiment has a liquid-permeable top sheet 2, a liquid-impermeable back sheet 3, and an absorber 4 interposed between these sheets. The front and rear waist portions 5A and 5B are joined to the left and right respectively. Then, on the surface of the back sheet 3, a strip-shaped tape fastener 10 to be worn at the time of disposal,
One end of the diaper 1 is fixedly arranged along the longitudinal direction of the diaper 1.

More specifically, in the disposable diaper 1 of the present embodiment, as shown in FIG. 1, the absorbent body 4 is curved and formed in an hourglass shape in which the crotch region is gathered, and the topsheet 2 and the backsheet 3 are also formed. The crotch region is curved according to the shape of the absorbent body 4 as described above, and
And is sandwiched and fixed by the back sheet 3. Also,
Front and rear waist portions 5A at the peripheral edge of the absorber 4,
An elastic elastic member 7 for fitting the waist portions 5A, 5B and the leg portion 6 to the wearer when the diaper is worn is fixed to the 5B and the leg portion 6 by the top sheet 2 and the back sheet 3. Is provided. Further, as shown in FIG. 1, 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, thereby forming a pants-like shape.

It is preferable that the joint portion 8 can be easily torn in the longitudinal direction so that the disposable diaper can be easily torn at the joint portion without soiling the wearer's skin. , Disposable diapers can be easily removed and discarded. The joint 8
Is formed by, for example, joining the front waist portion 5A and the rear waist portion 5B on the left and right sides with a hot-melt adhesive or using a material that can be joined by ultrasonic waves. It is preferable that the touch is soft even after 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. Examples of such a liquid permeable sheet include woven fabric and non-woven fabric. , And porous films are preferred. In addition, a method of applying a hydrophobic compound such as a silicone oil or paraffin wax to the peripheral edge of the surface sheet 2 or a method of previously applying a hydrophilic compound such as an alkyl phosphate ester to the entire surface and washing the peripheral edge with warm water is performed. By applying a water repellent treatment, it is possible to prevent leakage due to bleeding of urine or the like at the peripheral edge.

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

Further, the absorbent body 4 is preferably one in which a high molecular weight water-absorbing polymer mainly composed of defibrated pulp is used in combination, and a heat-treated mixture of thermoplastic resin, cellulose fiber and high-molecular weight water-absorbing polymer is preferably used. preferable. The high-molecular water-absorbing polymer may be present in any of the upper layer, the middle layer, and the lower layer of the absorbent body 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,
Examples of such high-molecular water-absorbing polymer include starch-acrylic acid (salt) graft copolymer, starch-
Preferable examples include saponified products of acrylonitrile copolymer, crosslinked products of sodium carboxymethyl cellulose, and acrylic acid (salt) polymers.

The elastic member 7 is preferably made of thread rubber, flat rubber, film type rubber, or film-like polyurethane foam, and preferably has a stress at 70% elongation of 70 to 100 grams. Further, it is preferable that the elastic stretchable member is formed of a non-woven fabric type having elasticity and breathability.

Thus, the disposable diaper 1 of this embodiment is
As shown in FIG. 1, in the back side portion of the diaper, the elastic extension of the waist portion 5B is a central area (the central portion in the width direction of the diaper) extending in the longitudinal direction of the surface of the back sheet 3.
At the lower part of the fixing region of the contracting member 7, a strip-shaped tape fastener 10 to be worn at the time of disposal is arranged with its one end fixed (along) in the longitudinal direction (vertical direction) of the diaper. . Further, the tape fastener 10 is arranged in a state of being folded in three in the length direction thereof, whereby the length can be extended when it is used. Here, the one end is one end of the tape fastener, and the size thereof is not particularly limited.

The tape fastener 1 in this embodiment
0 will be described in detail.
As shown in FIG. 2 (A), a fixing portion 11 which is joined and fixed to the back sheet 3 as one end thereof, a fastening portion 12 for rolling and fastening the diaper when disposing of the diaper, and the fixing portion. 11 and intermediate portion 1 for connecting the fastening portion 12
It consists of 6 and 6. The fixing portion 11 and the fastening portion 12 are respectively composed of mounts 13 and 13 'and adhesive layers 14 and 14' formed by applying an adhesive to one surface of the mounts 13 and 13 '. Further, the intermediate portion 16 has a backing sheet 13 "and an adhesive layer 14" formed by applying an adhesive agent on one end thereof.
Consists of Both ends of the intermediate portion 16 are bent to form an S-shape, and the adhesive layer 14 ″ is provided at the end portion of the intermediate portion 16 that is bent toward the fixed portion 11 side. “Abutting on the end of the fixing portion 11, and the mount 13 at the end bent to the side of the fastening portion 12” is the adhesive layer 1 at one end of the fastening portion 12.
4'is abutted, whereby the fixing portion 11 and the fastening portion 12 are connected via the intermediate portion 16, and the tape fastener 10 is in a state of being folded in three. Further, the mount 13 ″ that comes into contact with the adhesive layer 14 ′ is subjected to a peeling treatment so that it can be easily peeled and used at the time of use.

Further, the other end of the fastening portion 12 is bent toward the adhesive layer 14 'side of the fastening portion 12 to form a knob 15, as shown in FIG. 2 (B). By pulling up the knob 15 in the direction of the arrow, the fastening portion 12 can be separated from the intermediate portion 16. As described above, the tape in this embodiment
The fastener 10 has its free end diaper when disposing of the diaper.
When not in use, it has a fastening part 12 that is fastened to one
Is located inside the dorsal side and when using it
It is folded so that it can extend beyond the opening edge of the toe 5B.
And the fastening portion 12 is extended to the waist portion 5 when extended.
Shaped to have a length that can be located beyond the opening edge of B
It has been fixed .

As a material for forming the mounts 13, 13 'and 13 ", a film, paper, a non-woven fabric or a composite material thereof can be preferably used. Further, the mount 13' of the fastening portion 12 can be used. It is particularly preferable that the back sheet 3 is formed of the same material as that of the back sheet 3, so that the outer surface of the tape fastener 10 is similar to the outer surface of the diaper, and the tape fastener is not conspicuous and becomes an excellent diaper in appearance. In this case, the fixed portion 11
It is also possible to form the mount 13 and the mount 13 ″ of the intermediate portion 16 and the mount 13 ′ of the fastening portion 12 with different materials.

The pressure-sensitive adhesive forming the pressure-sensitive adhesive layers 14, 14 'and 14 "may be the same as the material used for the tape fastener of a normal disposable diaper, for example,
Styrene-based block polymers such as styrene-ethylene-butylene-styrene block copolymer (SEBS), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene copolymer (SBS), or natural rubber, Adhesives containing butadiene, acrylic acid ester, etc. as a main component are mentioned. 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 back sheet 3
It can be bonded and fixed by sticking it in the direction shown in FIG.

Another example of the tape fastener according to the present invention is a tape fastener having the structure shown in FIGS. 3 and 4. Here, FIG. 3 and FIG. 4 are enlarged perspective views showing other examples of the tape fastener in the disposable diaper of the present invention. The tape fastener shown in FIGS. 3 and 4 is formed in the same manner as the tape fastener 10 described above, unless otherwise specified.

The tape fastener 10A shown in FIG. 3 is provided with an adhesive region and a peeling region on one surface of the strip-shaped mount 13A, and the adhesive region and the peeling region are in contact with each other and overlap each other. The mount 13A is folded in three in the length direction, and more specifically, the mount 13A is folded in three to form a fixing portion 11A, a fastening portion 12A, and an intermediate portion 16A. An adhesive portion 14A is provided on the lower surface of 11A, and an adhesive layer 14'A is provided on the lower surface of the fastening portion 12A.
The knob 15A is formed by providing a portion to which the adhesive is not applied at the end of 2A.

The tape fastener 10B shown in FIG. 4 is provided with an adhesive region and a peeling region on one surface of a strip 13B of mount 13B, and the adhesive region and the peeling region are in contact with each other and overlap each other. More specifically, it is folded in the length direction, and in detail, it is an adhesive area in which adhesive layers 14B, 14'B and 14 "B are separately provided on the lower surface of one mount 13B, and the adhesive layer 14B, Adjacent to 14'B and 14 "B, there is a peeling area that has been subjected to a peeling treatment, and the tape fasteners so that the adhesive layers 14B, 14'B and 14" B are in contact with the peeling area, respectively. Is folded in the length direction of the fixing portion 11B, the fastening portion 12
B and the intermediate portion 16B are formed.

[0026] Also, on the definitive in disposable diapers of the present invention
The tape fastener includes the area including the fixing portion and the stopper.
3 of the region including the attachment part and the intermediate region connecting the both regions
Preferable to be folded in three layers
In particular, in the embodiment shown in FIGS. 1 and 2 and FIG.
As described above, the tape fastener (10A) is
The fixed portion 11 (11A) including one end and the fastening portion 12
(12A), the fixing portion 11 (11A) and the fastening portion 12
(12A) and intermediate part 16 (16A)
The fixed portion 11 (11A) and the intermediate portion 16 (16A)
And a three-fold state in which the fastening portion is folded.
Preferably, but not limited to these examples
No, it is folded into five layers as shown in FIG.
It can be a stuff . Furthermore, in the above-mentioned tape fastener, instead of performing the above-mentioned peeling treatment, a release paper can be laid on the surface of the back sheet, and the above-mentioned adhesive layer can be brought into contact therewith. The peeling treatment can be omitted by providing an adhesive layer made of the above adhesive. But,
It is preferable to use no release paper at all as in the embodiment shown in FIGS. 2 to 4 because the release paper is not required and the release paper is not required to be discarded. Furthermore, the tape fuss described above
Do not apply adhesive to the tip of the free end of the
May be provided, or the tip may be bent and the knob
May be provided .

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

In the present invention, as described above, various forms of tape fasteners can be used. In any form of tape fastener, the surface of the tape fastener is formed of the same material as the back sheet. It is preferable to have the appearance of the diaper.

In the disposable diaper of the present invention , the elasticity of the waist portion at the widthwise central portion of the back side portion is also provided.
It may be provided over the <br/> surface of the back side sheet in the lower part of the fixing region of the telescopic member, but to dispose the position shown in FIG. 1, it is convenient to fastening tape fasteners at the time of disposal.

Since the disposable diaper 1 of this embodiment is constructed as described above, it is excellent in disposability after use as will be described in detail below with reference to FIGS. 5 (A) and 5 (B). is there. Here, FIG. 5 (A) is a schematic perspective view showing a mode of rolling the diaper when discarding the diaper, and FIG. 5 (B) shows a mode of fastening the rolled diaper 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, as shown in FIG.
As shown in FIG. 5, the diaper is rolled in its longitudinal direction, the fastening portion 12 of the tape fastener 10 is peeled from the intermediate portion 16, and the tape fastener 10 is extended in its longitudinal direction. As shown in B), the fastening portion 12
The adhesive layer 14 'is fixed to the back sheet 3 of the diaper by straddling the front and rear waist portions 5A and 5B to fix the rolled state of the diaper, thereby disposing of the diaper easily and sanitarily. be able to. 5 (A) and 5 (B) show the disposal method of rolling the diaper from the crotch part, the disposable diaper of the present invention can be disposed of by various methods other than this, for example, Arbitrary disposal operations such as rolling from the waist of the diaper and fastening the crotch of the diaper with tape fasteners can be performed.

The shape of the tape fastener and the position where the tape fastener is provided in the disposable diaper of the present invention are not limited to the above-mentioned embodiment , and are within the scope of the present invention.
Can be changed appropriately .

[0032]

EFFECTS OF THE INVENTION The disposable diaper of the present invention is easy to dispose 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 wrapped up and discarded as it is after use, by rolling and sealing the inside and fastening with the tape fastener.

[Brief description of drawings]

FIG. 1 is a perspective view showing a back side (back side) of a diaper according to an embodiment of the disposable diaper of the present invention.

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

FIG. 3 is an enlarged perspective view showing another example of the tape fastener in the disposable diaper of the present invention.

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

FIG. 5 (A) is a schematic perspective view showing a manner of rolling a diaper when disposing of the diaper.
(B) is a schematic perspective view showing a mode of fastening a rolled diaper with a tape fastener.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disposable diaper 2 Top sheet 3 Back sheet 4 Absorber 5A Front waist part 5B Rear waist part 6 Leg part 7 Elastic expansion and contraction member 8 Joining part 10 Tape fastener 11 Fixing part 12 Fastening part 13 Mount 14 Adhesive part 15 Knob 16 Middle part

Claims (3)

[Scope of utility model registration request] 1. A pants-type disposable diaper having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between these sheets, and front and rear waist portions joined to each other on the left and right sides. In the widthwise central part of the back side and the opening edge part of the waist part
Thereof to the back surface sheet <br/> over preparative surface in the lower portion of the fixing region of the resilient and elastic members, the strip-like tape fastener of the diaper disposal during stop worn toward its length direction in the vertical direction of the diaper With one end fixed and folded in its length direction,
The tape fastener is located so that it is located inside the back side, and the free end of the tape fastener is used when disposing of the diaper.
Is used as a fastening part for the
Length that the part can be located beyond the opening edge of the waist part
Disposable diapers, characterized in that it is. 2. The tape fastener has the fixing portion.
Area including, area including the fastening portion, and connecting both areas
Fold in a three-fold state consisting of three layers in the intermediate area
The disposable diaper according to claim 1, characterized in that it is. 3. The tape fastener has an adhesive region and a peeling region, and in the tri- folded state, the adhesive region and the peeling region are overlapped so as to contact each other. The disposable diaper according to 1 or 2 .