JP2576930Y2 - 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 disposable diaper, and more particularly, to a disposable diaper excellent in wearability and fit.

[0002]

2. Description of the Related Art A disposable diaper is provided with a joining tape made of an adhesive tape or a magic tape on both side edges of a back portion thereof, and when attaching the diaper, the back portion and the abdomen of the diaper are fastened by the joining tape. It is configured to be able to. Usually, one or a plurality of bonding tapes are attached to the left and right sides of the used diaper. The former is often found in diapers for babies and infants, and the latter is often found in diapers for adults.

[0003] In the case of a disposable diaper in which a bonding tape is provided on both side edges of the back, all the bonding tapes are mounted at right angles to the longitudinal direction of the diaper. For this reason, when attaching the diaper, the bonding tape closest to the upper back side should be fastened so that the joint between the back and the abdomen of the diaper, which is almost perpendicular to the longitudinal direction of the diaper, fits the user's body. Can be. However, in the case of the bonding tape provided at the lower end, if the crotch of the diaper is to be fastened so as to fit the user's body, it must be pulled at an angle different from the mounting direction, that is, slightly upward. As a result, it is inevitable that the joint portion between the connecting tape provided on the upper end side and the joint tape becomes loose, and conversely, the joint portion between the tapes does not sag. Doing so results in sagging towards the crotch.

[0004]

As described above, in the case of a disposable diaper having a plurality of bonding tapes on one side, a firm fit to the user's body cannot be obtained over the entire side edge. There is a problem. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a disposable diaper having a plurality of connecting tapes on one side, which is excellent in fitting and fitting properties.

[0005]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems in the disposable diaper, and as a result, a plurality of connecting tapes provided on one side edge attached to the disposable diaper. The present inventors have found that the above-mentioned problems can be solved by devising the respective mounting angles, and have arrived at the present invention. That is, the present invention has at least a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber interposed between these two sheets, a binding tape for fastening the back and abdomen of the diaper, and the like. In a disposable diaper in which two or more bonding tapes are provided on one side of the back side, the bonding tape attached to the position closest to the longitudinal back end of the diaper is positioned in the vertical direction of the diaper. The coupling tape other than the above is attached obliquely at an angle θ of up to 45 degrees upward in the dorsal direction with respect to the lateral axis of the diaper.

The materials used in the disposable diaper of the present invention are all commonly used materials. As the liquid permeable surface sheet, a nonwoven fabric, a woven fabric, a porous plastic film, or the like made of polypropylene, polyester, or the like by a card method, a spun bond method, or the like is preferable. or,
As the back sheet, a waterproof film made of polyethylene or the like, a porous film having air-permeable fine pores containing a fine particle pigment, or the like is used.

[0007] The absorbent is a moisture absorbent commonly used in disposable diapers, and may be used alone or in combination with water-absorbing paper, fluff pulp, superabsorbent polymer and the like. As the elastic elastic body, natural rubber thread rubber, synthetic rubber thread rubber, elastic polyurethane rubber (spandex), elastic polyurethane film, polyurethane foam and the like can be used.

[0008] The joining tape is composed of a fastening tape for joining the back and the abdomen, and a release tape temporarily attached to an adhesive at a free end of the fastening tape. For the fastening tape to be used, a commonly used material such as a polypropylene film as a base material or a nonwoven fabric laminated with polyethylene or the like can be used, and a normal adhesive such as a rubber-based or olefin-based or acrylic-based adhesive is used. Is done. Generally, when attaching the bonding tape to the diaper, a fastening tape band and a release tape band having a width equivalent to the length from the fixed end to the free end of the bonding tape are stuck together under a predetermined condition. This is done by cutting to width and attaching to a diaper.

[0009]

The disposable diaper of the present invention having the above structure is as follows.
When the diaper is worn, the connecting tape (a) attached at a right angle to the vertical direction of the diaper plays the role of fastening the seam of the back and abdomen of the diaper at right angles,
Further, a coupling tape (b) which is located below the tape (a) and is attached obliquely at an angle of θ with respect to the transverse axis of the diaper is a coupling tape (a) and a coupling tape (b).
It serves to fasten the crotch from the connecting tape (b) to the lower part so as to fit tightly on the user's body without causing slack in the portion between them.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited to these embodiments. FIG. 1 is a plan view of the disposable diaper of the present invention having coupling tapes (a) and (b) having different mounting angles as viewed from the back sheet side. FIG. 2 is an enlarged view of the tape attaching portion of the disposable diaper of FIG. FIG.
FIG. 2 is an enlarged view of a tape attaching portion in another embodiment of the disposable diaper of FIG. 1. FIG. 4 is a cross-sectional view of the bonding tape attached to the disposable diaper of the present invention.

In each of the drawings, reference numeral (a) denotes a connecting tape attached in a direction perpendicular to the longitudinal direction of the diaper, (b)
Is a bonding tape attached at an angle of θ to the lateral axis of the diaper, 1 is a top sheet of the diaper, 2 is an absorber, 3 is a back sheet of the diaper, 4 is one end fixed on the back sheet. Fastening tape, 5 is a release tape fixed on the surface sheet of the diaper, 6 is a crotch elastic, 7 is a frontal tape, 8 is a back portion of the diaper, 9 is a ventral portion of the diaper, and 10 is a ventral portion of the diaper. A grip portion of the fastening tape, 11 is an adhesive layer of the fastening tape, and 12 is an adhesive layer for fixing the release tape to the topsheet.

As shown in FIG. 1, the disposable diaper of the present invention has a back sheet 3 and a top sheet 1 adhered to each other with an absorber 2 interposed therebetween, and furthermore, a diaper inseam. It has a crotch elastic 6 and a frontal tape 7 for tightening the part, and two sets of connecting tapes (a) and (b).

The bonding tapes (a) and (b) are composed of a release tape 5 having an adhesive layer 12 and a fastening tape 4 having an adhesive layer 11 as shown in FIG. With the pressure-sensitive adhesive layer 11 temporarily attached to the surface of the non-pressure-sensitive adhesive layer of the release tape 5 so that the grip portion 10 is formed, the pressure-sensitive adhesive layer 12 of the release tape 5 is placed on the topsheet 1. Also, by bonding the exposed portion of the adhesive layer 11 of the fastening tape 4 to the back sheet 3 before use, the diaper is attached and fixed in the state shown in FIGS. 1A and 1B before use. When the diaper is mounted, the user holds the gripping portion 10 of the fastening tape and peels it off from the release tape surface, and is used as shown in FIGS. 1A and 1B.

As shown in FIGS. 2 and 3, the coupling tapes (a) and (b) are attached to the diaper at a position close to the upper end of the rear side edge of the diaper. The attachment tape (b) provided at a side edge near the crotch portion of the diaper below the connection tape (a) is attached to the diaper in a direction perpendicular to the diaper direction. It is attached obliquely at an angle θ of up to 45 degrees, preferably 15 to 30 degrees. If the angle is 45 degrees or more, it becomes difficult to attach the diaper with the bonding tape, and the slack is not good.

In the case of the bonding tape (b), its shape is shown in FIG.
May be formed in a rhombic parallelogram,
Further, as shown in FIG. 3, it may be formed in a rectangular shape. A plurality of connecting tapes (a) and (b) can be attached as required, and in particular, a plurality of connecting tapes (b) are most suitable according to their attachment locations. It can be installed at any angle.

[0016]

[Effects of the Invention] As is clear from the above description, the disposable diaper of the present invention is designed so that the joint tape (a) fits the joint of the upper part of the back and the abdomen of the diaper firmly to the user. And the joining tape (b) does not cause a slack in the joint between the back part and the abdominal part of the diaper between the joining tape (b) and the joining tape (a). Since each part plays the role of fastening the back part and the abdomen part so that the diaper's crotch fits the user's crotch firmly, a disposable diaper with excellent wearability and fit for the user is there.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of the present invention as viewed from a back sheet side of a diaper.

FIG. 2 is an enlarged view of a tape attaching portion showing an example of the present invention.

FIG. 3 is an enlarged view of a tape attachment portion showing an example of the present invention.

FIG. 4 is a sectional view of the coupling tape (a) of FIG. 1;

[Explanation of symbols]

1: Top sheet, 2: Absorbent, 3: Back sheet, 4: Fastening tape, 5: Release tape, 6: Crotch elastic, 7: Frontal tape, 8: Back side of diaper, 9: Ventral side of diaper Part, 10: grip part of tape, 1
1: fastening tape adhesive, 12: release tape adhesive, (a), (b), (a '), (b'): binding tape

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-75055 (JP, A) JP-A-63-12703 (JP, A) JP-A-59-112004 (JP, A) 92310 (JP, U) Japanese Utility Model sho 59-73305 (JP, U) Japanese Utility Model sho 59-189809 (JP, U) Japanese Utility Model HI 3-104326 (JP, U) (58) Field surveyed (Int. ⁶ , DB name) A61F 13 / 15,13 / 56-13/64 A61F 5/44

Claims (1)

(57) [Scope of request for utility model registration] At least a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber interposed between these two sheets, and a connecting tape for fastening the back and abdomen of the diaper, wherein the connecting tape is provided. In a disposable diaper in which two or more tapes are provided on both side edges on the back side, the bonding tape attached to the position closest to the back side end in the diaper longitudinal direction is perpendicular to the diaper longitudinal direction. The binding tape other than the above is attached obliquely at an angle θ of up to 45 degrees upward on the back side with respect to the diaper lateral axis.