JP2001258938A - Underpants type diaper having post-treatment tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the existence of a knob section clearly distinguishable. SOLUTION: In an underpants type diaper having a waist opening and a pair of left and right leg openings formed by joining both side edge sections of a front body F to those of a back body B, a post-treatment tape 40 is fixed to the back body B and a colored thumb tab 44 is provided on the adhesive layer-side surface of the tape substrate at a fixing section 41. In addition, a colored thumb tab section is provided on the adhesive layer-side surface of the front end section of a tape fastener substrate and the existence of the thumb tab section 44 is visible through the tape fastener substrate.

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 diaper, and more particularly, to a post-processing tape having a body opening and a pair of left and right leg openings which are formed by joining both side edges of a front body and a back body. The present invention relates to a pants-type diaper.

[0002]

2. Description of the Related Art A standard form of a pants-type diaper of this type has both sides of a front body and a back body joined, and has a trunk opening and a pair of left and right leg openings.

However, when the pants-type diaper is discarded, a so-called post-processing tape is provided to facilitate the disposal.

[0004] This post-treatment tape is generally provided on the back body, the free end of the tape fastener is not used as a fastening portion for use when disposing the diaper, and the pants-type diaper is preliminarily folded and then folded. The tape fastener is extended, and its fastening portion is located beyond the body opening and fastened to the front body so that the rolled state is not released.

[0005] A typical example is disclosed in Japanese Utility Model Publication No. Hei 8-10305.

[0006]

The post-treatment tape currently on the market has a three-layer structure. However, in the above-mentioned publication, the top end of the upper layer is folded inward, and the portion is formed as a non-adhesive knob so that it can be easily peeled off from the knob.

Folding the top end of the upper layer inward as described above to form a non-adhesive knob portion is certainly convenient in that it is easy to pick, but naturally the upper layer and the knob portion are of the same color. Therefore, it is difficult for a general consumer to recognize that there is a knob.

Therefore, a main object of the present invention is to make it possible to clearly recognize the presence of the knob.

[0009]

According to the first aspect of the present invention, which solves the above-mentioned problems, the both sides of the front body and the back body are joined to form a trunk opening and a pair of left and right leg openings. In a pants-type diaper having a narrow band-shaped tape fastener fixed to an outer surface of a product in at least one of the front body and the back body and having an adhesive layer on a tape fastener substrate, the length direction of the diaper is One end is fixed to the outer surface in the up and down direction, and is folded in the length direction and disposed inside the one body, and the tape fastener has a free end at the body opening when the diaper is discarded. A post-processing tape having a structure that is located beyond the other body and is fixed to the outer surface of the other body via the pressure-sensitive adhesive layer, on the side of the pressure-sensitive adhesive layer at the tip of the tape fastener base material, Colored pick It has a blanking portion, which is the pants-type diaper having a post-treatment tape, wherein the presence of the knob tab portion via the tape fastener substrate are visible.

According to a second aspect of the present invention, there is provided a pants-type diaper having a post-processing tape according to the first aspect, wherein a leading edge of the tab is projected in a length direction from a leading edge of the tape fastener base material.

According to a third aspect of the present invention, the tape fastener comprises three layers: a lower layer fixed to the outer surface of the product, an upper layer having an adhesive layer serving as a fastening portion on the outer surface of the product, and an intermediate layer connecting these layers. 2. A pants-type diaper having a post-treatment tape according to claim 1, wherein at least one of the intermediate layer and the lower layer is colored, and the color is the same or similar to the color of the outer surface of the product.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the embodiments shown in the drawings.

(Example of Overall Structure) FIG. 1 shows an example P of a pants-type diaper.
FIG. 2 shows a pants-type diaper P in a product state.
FIG. 3 shows a side view thereof. That is, the disposable diaper P of the present embodiment includes the outer sheet 1 and the absorber element 10 fixed to the inner surface of the outer sheet 1 and extending in the front-rear direction with the crotch portion 4 as a center.

As can be seen from the relationship between FIG. 1, FIG. 2 and FIG. 3, by joining both side edges of the front body F and the back body B, the trunk opening WO and the pair of left and right leg openings LO are formed. The leg openings LO, LO are provided with leg elastic members made of a plurality of elastic yarns G1,..., G2. The form of the joint 30 will be described later in detail. Reference numeral 20 denotes a waist elastic member for improving the fit of the waist, and reference numeral 21 denotes a waist elastic member for improving the fit of the waist and preventing urine from leaking back and forth. Note that FIG.
3 and FIG. 3, the waist elastic member 20 is not shown.

The outer sheet 1 is formed by laminating and fixing a plurality of nonwoven fabrics. Between the left waist side 2L of the front body F, the left leg circumference 3L of the front body F, the crotch part 4, and the front body F Are fixed so as to be continuous to the right waist side 2R of the front body F via the right leg circumference 3R of the front body F, and from the left waist side 5L of the back body B to the left of the back body B. 6L around the leg,
A plurality of elastic yarns G2 are provided so as to be continuous to the crotch portion 4 and the right leg side portion 5R of the back body B via the right leg surrounding portion 6R of the back body B.
Is fixed. As shown in FIG. 2 and FIG. 3, the plurality of elastic yarns G1... G2.
7 is formed. C indicates a central area around each leg.

The absorbent element 10 is made of, for example, a non-woven fabric or the like, and is made of a liquid-permeable top sheet 1 that directly touches the wearer's skin.
1 and a liquid-impervious back sheet 13 made of a plastic film such as polyethylene or a water-repellent non-woven fabric, and an absorbent 12 mainly composed of cotton-like pulp and optionally wrapped with absorbent paper. The sandwiching and the peripheral portion can be formed as one integrated by bonding with, for example, a hot melt adhesive.

In the disposable diaper P of this embodiment, the front body F
Are arranged on the left waist side 2 of the front body F.
L, the crotch portion 4 and the right waist side portion 2R of the front body F are fixed to the outer shape sheet 1 in a bundled state, and the other portions, ie, the left leg circumference 3L of the front body F and the right leg circumference of the front body F, are bundled. The portions 3R are fixed to the outer shape sheet 1 with an interval therebetween. Also, a plurality of elastic yarns G on the back body B side
Are fixed to the outer sheet 1 in a bundled state at the left waist side portion 5L of the back body B, the crotch portion 4 and the right waist side portion 5R of the back body B, and the other portions, that is, the back body B Is fixed to the outer sheet 1 with a space between the left leg surrounding portion 6L and the right leg surrounding portion 6R of the back body B.
In the illustrated example, a plurality of elastic yarns G1 fixed to the front body F side and a plurality of elastic yarns G fixed to the back body B side
2 are bundled together at the crotch portion 4.

Therefore, in the disposable diaper 1 of this embodiment, the plurality of elastic yarns G1,..., G2,.
L, 3R, 6L, 6R are the widest, and crotch 4 and waist 2L, 2R, 5L, 5R are the narrowest.

By arranging the elastic yarns in this manner, the contraction force of the portions where the plurality of elastic yarns G1... G2 are bundled and fixed, that is, the crotch portion 4 and the waist side portions 2L, 2R, 5L, 5R. Weakens. As a result, the shrinkage of the absorber 3 in the width direction is reduced, and a tightening trace is less likely to be formed on the waist side of the adherend. In this example, the leg circumferences 3L, 3R, 6L, 6
In R, the plurality of elastic yarns G1..., G2. Stronger than. Further, the leg circumferences 3L, 3R, 6L, 6R are in contact with the thighs of the adherend on a wider surface in the width direction. Therefore,
It has good fit to the base of the thigh, hardly shows any trace of tightening, and has excellent side leakage prevention effect.

On the other hand, as the elastic member or the elastic yarn, a natural rubber yarn or a synthetic rubber yarn having an appropriate thickness and cross-sectional shape can be used. The number of elastic yarns need not be three as in the illustrated example, as long as the number is plural.

In the above example, both the plurality of elastic yarns G1 fixed to the front body F side and the plurality of elastic yarns G2 fixed to the back body B side are bundled together in the crotch portion 4. But not limited to this. That is, a plurality of elastic yarns fixed to the front body F side and a plurality of elastic yarns fixed to the back body B side can be separately bundled at the crotch part.

In this case, a plurality of elastic yarns G on the front body F side
And a plurality of elastic yarns G2 on the back body B side of the crotch portion 4.
, And each of the plurality of elastic yarns G
.., G2... Cross each other, or a plurality of elastic yarns G1... On the front body F side and a plurality of elastic yarns G2.
Further, the plurality of elastic yarns G1..., G2.

Further, in the above example, the plurality of elastic yarns in the crotch portion and the waist side portion are fixed to the outer shape sheet in a bundled state, and the plurality of elastic yarns in the leg surrounding portions are fixed to the outer shape sheet at intervals. But not limited to this.

That is, it is sufficient that at least the interval between the plurality of elastic yarns in the crotch portion is smaller than that in the leg circumference. Therefore, as long as such a condition is satisfied, for example, a plurality of elastic yarns in all parts may be arranged at intervals. Further, when the interval between the plurality of elastic yarns at both the crotch portion and the waist side portion is smaller than that around the leg, the mutual interval between the plurality of elastic yarns at the crotch portion and the plurality of elastic yarns at the waist side portion are provided. The mutual spacing of the yarns may be different.

(Form of post-processing taper of the present invention)
Now, as shown in FIG. 1 and FIG. 2, the post-processing tape 40 according to the present invention has its length direction along the front-back direction of the product near the trunk opening WO of the back body B, It is fixed to the outer surface of the product, in the embodiment, the back surface of the liquid-impermeable back sheet 13.

The post-processing tape 40 is a strip-shaped tape fastener for fastening the diaper at the time of disposal, and includes a lower layer 41 fixed to the outer surface, an upper layer 43 having a fastening portion, and an intermediate layer 42 connecting these. The sheet is folded into a three-fold state and fixed to the back surface of the liquid-impermeable back sheet 13.

The upper layer 43, the intermediate layer 42 and the lower layer 41
An adhesive layer 43A, 4
2A and 41A, and their connecting portions are connected via the pressure-sensitive adhesive layers 43A and 42A to be integrated into a continuous sheet. Pressure-sensitive adhesive layer 41A of lower layer 41
Are fixed to the outer surface of the product.

In the post-treatment tape 40 of the present invention, the pressure-sensitive adhesive layer 43A of the upper layer 43 functions as a fastening portion. That is, as shown in FIG. 5B and FIG. 6, the lower layer 41 is used as a fixing portion, and the upper layer 43 and the intermediate layer 42 excluding the lower layer 41 are used as free ends of the tape fastener. The free end is extended when the diaper is discarded, and the fastening portion (adhesive layer 43A) of the upper layer 43 is located beyond the trunk opening WO and fastened to the front body F. .

On the side surface of the pressure-sensitive adhesive layer 43A of the upper layer 43, a colored knob tab 44 formed of a base material different from the upper layer 43 is fixed by using a hot-melt adhesive or a pressure-sensitive adhesive 43A as shown in the figure. The tip edge of the upper layer 43 is fixed so as to protrude in the length direction from the tip edge of the (tape substrate).

On the other hand, in the embodiment, at least a portion of the tape base material covering the knob tab 44 is entirely transparent or translucent, so that the presence of the knob tab 44 can be easily recognized through the upper layer 43. It is like that.

Therefore, a transparent adhesive layer is used.

In this embodiment, the presence of the colored, for example, blue, tab 43 is clearly visible through the upper layer 43, so that the user (consumer) can grasp the tab 44 in FIG. (B), an operation is performed in which the free end is positioned beyond the trunk opening WO and fastened to the front body F. As a result, the post-processing tape 40 that is provided on purpose is effectively used, and the commercial value is increased.

On the other hand, the upper layer 43 has at least the tab 4
The four portions need only be transparent or translucent (preferably transparent) and need not be entirely.

On the other hand, when the entire upper layer 43 is transparent or translucent, at least one of the intermediate layer and the lower layer can be colored. In this case, if the coloring is the same or similar to the color of the outer surface of the product, the entire post-processing tape 40 will not be conspicuously apparent, and the design of the product will be unified.

[0035]

As described above, according to the present invention, since the existence of the knob portion can be clearly recognized, advantages such as an increase in commercial value are brought.

[Brief description of the drawings]

FIG. 1 is a development view of a pants-type diaper according to the present invention.

FIG. 2 is a front view of the pants-type diaper according to the present invention when not worn.

FIG. 3 is a side view thereof.

FIG. 4 is a perspective view from the rear side of the pants-type diaper according to the present invention.

FIG. 5 is a perspective view of the post-treatment tape of the present invention, and FIG.
Indicates a folded state, and (B) indicates a peeling start state.

FIGS. 6A and 6B are perspective views of a usage form of the post-treatment tape of the present invention, wherein FIG. 6A shows a peeling start state, and FIG.

[Explanation of symbols]

P: pants-type diaper, 1: outer sheet, 2L, 2R: waist side of front body F, 3L, 3R: leg circumference of front body F, 4
... Crotch, 5L, 5R ... Birth side of back body B, 6L, 6R
... Around the legs of the back body B, 7 gathers, 10 absorber elements, 11 liquid-permeable topsheet, 12 absorbers, 13 liquid-impermeable backsheet, G1 elastic yarn on the front body F side, G2 …
Back body B side elastic thread, 20: waist elastic member, 21: waist elastic member, 30: joint, 40: post-processing tape, 4
1 Lower layer, 42 Middle layer, 43 Upper layer, 44 Pick tab.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) // A61G 12/00

Claims (3)

[Claims] 1. A pants-type diaper in which both side edges of a front body and a rear body are joined, and which has a trunk opening and a pair of left and right leg openings, wherein at least one of the front body and the rear body has A tape-shaped tape fastener fixed to the outer surface of the product and having a pressure-sensitive adhesive layer on the tape fastener base material, one end of which is fixed to the outer surface with its length direction facing up and down of the diaper, and its length direction The tape fastener is disposed inside the one body, and when the diaper is discarded, the free end is located beyond the body opening and the outer body of the other body is interposed through the adhesive layer. It has a post-processing tape having a structure to be fixed, and has a colored tab portion on the side of the pressure-sensitive adhesive layer at the tip of the tape fastener substrate, and a tab portion via the tape fastener substrate. The existence of A pants-type diaper having a post-processing tape, which is visible. 2. A pants-type diaper having a post-processing tape according to claim 1, wherein a leading edge of the tab is projected in a length direction from a leading edge of the tape fastener base material. 3. The tape fastener according to claim 1, comprising a lower layer fixed to the outer surface of the product, an upper layer having an adhesive layer serving as a fastening portion on the outer surface of the product, and an intermediate layer connecting these layers. At least one of the lower layers is colored,
The pants-type diaper having a post-treatment tape according to claim 1, wherein the color is the same as or similar to the color of the outer surface of the product.