JP2001178777A - Briefs type disposable paper diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily pick an abandoning fastening tape, and easily fix a paper diaper from a roundly crampled state. SOLUTION: In this disposable paper diaper formed in an briefs shape by thermally welding both side edge parts of the front body and the rear body by folding up a paper diaper constituting sheet material for interposing an absorber 3 between a body side liquid permeable top sheet 2 and an outside surface side back sheet 1 so as to overlap the front body and the rear body with a lengthwise directional central part as a fold line position, at least a picking part 9 is installed in a waist opening edge part of the rear body in a state of projecting outside more than the waist opening edge in a state of folding up a thin belt-like abandoning fastening tape 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type disposable disposable diaper having a fastening tape for disposal on its back.

[0002]

2. Description of the Related Art Conventionally, pants-type disposable paper diapers have been used for the purpose of accelerating diaper separation or releasing an adult from a mounting operation using a fastening tape each time and simplifying the mounting. Offered on the market with disposable disposable diapers.

In this pants-type disposable diaper, as shown in FIG. 6, for example, elastic elastic members 51 and 52 are arranged on a liquid-impervious back sheet 50 made of polyethylene or the like around the waist portion at the front and rear. And a first elastic expansion / contraction member 53 which extends from the front body F end of one leg around the lower part of the product paper diaper to the front body F end of the other leg.
And a second body continuous from the back body B end of one leg to the back body B end of the other leg around the crotch portion of the product disposable diaper.
An elastic elastic member 54 is disposed, an absorber 55 is disposed on the liquid-impermeable back sheet 50, and a liquid-permeable top sheet 56 is further stacked thereon. The diaper is formed into a pants-type disposable diaper by sealing and joining the folded side edges by seal welding or ultrasonic welding.

In the disposal of such a pants-type disposable disposable diaper, Japanese Utility Model Publication No. Hei 8-10305 discloses an elastic elastic member 57 at the center of the back body B and at the edge of the waist opening as shown in FIG. In the lower part of the fixing region, a narrow band-shaped disposal fastening tape 59 fixed at one end along the vertical direction of the diaper and fixed in a three-fold state is provided on the surface of the liquid-impermeable back sheet 58. Pants-type disposable disposable diapers have been proposed. In the disposal process, the diaper is rolled in the longitudinal direction from the crotch side, and the discarding fastening tape 59 is pulled and extended from the folded state, and is fixed to the surface of the liquid-impermeable back sheet 58 and rounded. Secure and discard.

[0005]

However, in the case of the above-mentioned discarding fastening tape 59 structure, the elastic expansion and contraction member 57 is required.
The fixing tape for disposal 59 is fixed below the fixing region, that is, substantially at the center of the back body B, so that when the tip of the fixing tape for disposal 59 is picked and extended, the fixing tape for disposal is disposed. As shown in FIG. 8, when the used diaper is fixed in a rolled state while the used diaper is fixed in a rolled state, as shown in FIG. Unless the portion 60 is folded inward, the fastening tape 59 for disposal cannot be fastened to the liquid-impermeable backsheet surface.

Further, if refastening is performed several times, the adhesive strength is reduced, and the fastening tape 59 for disposal which should have been fixed is used.
However, there was also a problem that it was naturally peeled off.

SUMMARY OF THE INVENTION Accordingly, a main object of the present invention is to provide a disposal tape which makes it easy to pick up the fastening tape for disposal, makes it possible to easily fix the disposable diaper from a rolled-up state, and eliminates the peeling of the fastening tape to ensure the fixing. It is an object of the present invention to provide a pants-type disposable paper diaper provided with a fastening tape for use.

[0008]

According to the present invention, there is provided a sheet material for a disposable diaper in which an absorbent is interposed between a liquid-permeable top sheet on the body side and a back sheet on the outer surface. In the disposable disposable diaper having a pants shape by folding the front body and the back body so that the front body and the back body overlap so that the center part in the longitudinal direction is a folding line position and heat-welding both side edges of the front body and the back body, A narrow strip-shaped fastening tape for disposal is attached to the waist opening edge in a state where at least the knob is protruded outside the waist opening edge in a folded state.

[0009] In this case, the fastening tape for disposal is provided on the outer surface of the fixing part which is provided in a longitudinal direction from the fixing part which is adhered to the disposable diaper in a non-peelable manner and which is folded. An intermediate fold that is releasably adhered, and a continuation provided in the longitudinal direction from the intermediate fold, and is adhered to the outer surface of the intermediate fold in a folded state, and a knob is provided at the tip. One having a tip fastening portion having the same is preferably used. In addition, in order to ease contact with the skin, it is preferable that the knob has a rounded tip corner or a rounded tip.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view of a pants-type disposable paper diaper according to the present invention as viewed from the back side, and FIG. 2 is an enlarged view of a main part showing the structure of a fastening tape 5 for disposal according to the present invention.

First, as shown in FIG. 1 and the like, a pants-type disposable diaper comprises a liquid-permeable top sheet 2 made of non-woven fabric or the like and facing the wearer's skin, and a liquid-impermeable back sheet 1 made of polyethylene or the like. And a semi-rigid absorbent body 3 mainly composed of cotton-like pulp and provided with absorbent paper or the like as necessary, and leg opening forming recesses 4 and 4 are provided on both side edges in the expanded state.
, Respectively, that is, the result is formed in an approximately hourglass shape, with the middle part in the longitudinal direction folded along the front-back direction, and the folded front body and the rear body are sealed or welded to each other by sealing both sides. It is manufactured as a pants-type disposable diaper joined by sonic welding and having no fastening tape.

The outer surface of the disposable diaper is not always a liquid-impervious backsheet, and a body back made of an inner backsheet nonwoven fabric and an outer backsheet nonwoven fabric is provided outside the liquid-impermeable backsheet 1. By providing the sheet integrally, the outer surface side can be made of a nonwoven fabric.
Note that this disposable diaper configuration is described in, for example, Japanese Patent Application No. 11-26.
No. 8557 and the like. In any case, the disposable diaper made in an approximately hourglass shape in the unfolded state is folded in two in the front-rear direction at the center in the longitudinal direction, and is sealed or welded to each other with leg openings formed on both sides. It is joined by a welding method such as sonic welding and formed into a pants type.

In such a pants-type disposable paper diaper, as shown in FIG. 1, a disposal fastening tape 5 is provided at a substantially central position of a back body with at least a knob protruding outside the waist opening edge. Is provided.

The disposal fastening tape 5 is described in detail in FIG.
As shown in (B), a fixing portion 6 having an adhesive layer 10 on the paper diaper surface side and non-peelably bonded to the waist opening edge at the rear center portion of the paper diaper, and a tip side of the fixing portion 6 And an intermediate fold 7 having an adhesive layer 11 on the opposite side of the disposable diaper, and an adhesive layer 12 joined to the distal end of the intermediate fold 7 and on the disposable diaper side.
, And the tip portion is folded twice so that the knob 9
2A, and is folded at the boundary between the fixing portion 6 and the intermediate folding portion 7 when not in use, as shown in FIG. 2A. The adhesive layer 11 of the intermediate fold 7 is releasably adhered to the outer surface of the fixing part 6.
Is folded back at the boundary between the front end fastening portion 8 and the front end fastening portion 8.
The adhesive layer 12 is detachably adhered to the outer surface of the intermediate folded portion 7. However, the knob 9 protrudes outward from the waist opening edge. It is preferable that the outer surface of the fixing portion 6 on which the adhesive layer 11 overlaps and the outer surface of the intermediate folding portion 7 on which the adhesive layer 12 overlaps be subjected to a peeling process.

The tape base material of the fixing portion 6, the intermediate folding portion 7, and the front end fixing portion 8 has a sufficient tensile strength such as a film, a paper, a nonwoven fabric, or a laminate thereof.
Various materials can be used as long as they are flexible. As a raw material of the film or the nonwoven fabric, a polyolefin resin such as polypropylene, polyethylene, and polystyrene, a polyester resin such as polyethylene terephthalate and polybutylene terephthalate, a polyamide resin, and a polyurethane resin can be used. In addition, the knob 9 may be cut at an angle as shown in FIG. 4 (A) or cut into an arc shape as shown in FIG. 4 (B) in order to ease contact with the skin. It is desirable to keep.

On the other hand, regarding the adhesive, a rubber-based adhesive,
An adhesive such as an acrylic adhesive, which is equivalent to an adhesive used in a conventional tape-type disposable diaper fastening tape, or the like can be used.

When discarding used disposable diapers,
After the welded portions on both side edges are torn off from the body from the mounted state, as shown in FIG. 3 (A), the disposable diaper is rolled up from the crotch side in a state of being folded in half, and then the fastening tape for disposal is disposed. 5 (B), when the gripping portion 9 of FIG. 5 is extended from the folded state to the linear state, and the fastening tape 5 for disposal is wound around the rolled paper diaper as it is.
As shown in (2), the adhesive layer 12 of the front end fixing portion 8 is fixed to the outer surface of the paper diaper, and the rolled state is fixed.

In the case of the fastening tape for disposal according to the present invention, since the fastening tape for disposal 5 is arranged near the opening edge of the waist, a substantially rounded disposable diaper can be fastened by making one round. And the rolled state of the disposable diaper can be securely fixed.

Incidentally, the structure of the fastening tape 5 for disposal can be variously changed as long as the condition that the knob 9 projects outside the waist opening edge in the folded state is satisfied. For example, in the fastening tape for disposal 5A shown in FIG. 5, the fixing portion 6, the intermediate folding portion 7, and the tip fastening portion 8 are constituted by a single strip-shaped tape base material 13. It is generally considered sufficient to provide one of the above-mentioned disposal fastening tapes 5 and 5A at the center of the back body, but two or more may be provided.

[0021]

As described above in detail, according to the present invention, since the knob portion projects outside the waist opening edge, the fastening tape for disposal can be easily picked and extended, and the fixing portion is extended. Since there is no paper diaper on the outside, the paper diaper can be easily fixed from a rolled state. In addition, since the tape can be fixed in a state where the tape is substantially circulated due to the long extension, the tape can be securely fixed without peeling.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pants-type disposable paper diaper according to the present invention as viewed from the back side.

FIG. 2 shows the structure of a fastening tape for disposal according to the present invention.
(A) is a side view in a folded state, and (B) is a side view in an extended state.

3A and 3B are perspective views showing a procedure (No. 1), and FIG. 3B is a side view showing a procedure (No. 2), showing a procedure of discarding.

FIG. 4 is a diagram showing a tip processing procedure of the knob 9;

5A and 5B show a modified example of the fastening tape structure for disposal according to the present invention. FIG. 5A is a side view in a folded state, and FIG. 5B is a side view in an extended state.

FIG. 6 is a developed view showing a conventional pants-type disposable paper diaper structure.

FIG. 7 is a perspective view of a disposable diaper showing an example of attaching a conventional fastening tape for disposal.

FIG. 8 is a diagram showing the procedure of disposal.

[Explanation of symbols]

1. Liquid-impervious back sheet, 2: Liquid-pervious top sheet,
DESCRIPTION OF SYMBOLS 3 ... Absorber, 4 ... concave part for leg opening formation, 5.5 A: Disposal fastening tape, 6 ... Fixed part, 7 ... Intermediate folded part, 8 ... Tip fastening part, 9 ... Knob part, 10-12 ... Adhesive layer

Claims (3)

[Claims] 1. A disposable diaper-constituting sheet material in which an absorber is interposed between a liquid-permeable topsheet on the body side and a backsheet on the outer surface, and a front body and a back body with a longitudinal center portion as a folding line position. In a disposable disposable diaper that has been folded so that it overlaps and is heat-sealed on both side edges of the front body and the back body, at least the knob is more than the waist opening edge on the waist opening edge of the back body. A pants-type disposable disposable diaper characterized in that a narrow band-shaped fastening tape for disposal is attached in a folded state so as to protrude to the outside. 2. The fastening tape for disposal according to claim 1, wherein said fastening tape is fixed to the disposable diaper so as to be non-peelable, and is continuously provided in the longitudinal direction from said fastening part. An intermediate fold portion that is adhered to the end portion, and a tip portion that is provided continuously in the longitudinal direction from the intermediate fold portion, is detachably adhered to the outer surface of the intermediate fold portion in a folded state, and has a knob portion at the end portion. The pants-type disposable paper diaper according to claim 1, comprising a fastening portion. 3. The knob has a rounded tip corner,
The pants-type disposable paper diaper according to any one of claims 1 and 2, wherein a tip portion is processed into an arc shape.