JPH02126850A - Paper diaper - Google Patents

Abstract

PURPOSE:To form a pocket to prevent stool from leaking from the side of a diaper by outwardly turning the diaper at the middle of the projection length of a longitudinal end of a barrier cuff. CONSTITUTION:The cuff sheet side edge of a barrier cuff 10 is stuck by means of an adhesive (A) onto a liquid permeable sheet 2 in the vicinity of a side edge of an absorbing body. A longitudinal end of the barrier cuff 10 is turned outwardly at the middle of its projection length and its turned faces are stuck to each by means of the adhesive A. In the case of putting on the paper diaper, the barrier cuff 10 is prevented from wholly falling inwards, even when it contracts, by the shrinkage force of an expansif elastic member 12; the barrier cuff 10 is caused to stand up slightly outwardly by the longitudinal stretching force of the paper diaper. Under these conditions, the skin of the wearer B touches the diaper an the top side of barrier cuff is put down outwardly so that it is softly applied to the skin. In addition, a pocket P for loose bowels is constantly held in between the barrier cuff 10 and a liquid permeable sheet 10 by adjustment of the width of a surface sheet 20.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a disposable diaper with barrier cuffs.

[Conventional technology]

In recent years, paper diapers having barrier cuffs have been proposed, and some of them are in practical use.

This type of paper diaper attempts to prevent fecal leakage with barrier cuffs.

As a concrete proposal, a representative example is Japanese Patent Application Laid-Open No. 62-2502.
There are No. 1 and No. 62-231004.

[Problem to be solved by the invention]

However, in the former type, the front and rear ends of the barrier cuffs are fixed to the liquid-permeable sheet on the lower surface toward the longitudinal center line, so the barrier cuffs tend to always fall inward, and the wearer's movements, especially the legs, tend to fall. It is difficult to follow the movements of For example, when the legs move in the width direction of the disposable diaper, the barrier cuffs tend to be left behind because they only make approximately linear contact with the legs. Furthermore, since the barrier cuffs tend to fall inward due to pressure exerted by the wearer, the pockets inside the barrier cuffs, which have been carefully formed, are crushed, and as a result, it is not possible to sufficiently prevent fecal leakage.

On the other hand, in the latter case, the front and rear ends of the barrier cuffs are folded outward and fixed, so the barrier cuffs are directed outwards (therefore, although they are excellent in tracking the legs, the pockets are not formed). It has poor fecal deterrent properties.
Side leakage often occurred.

SUMMARY OF THE INVENTION Therefore, the main object of the present invention is to provide a paper diaper that has excellent followability to the legs and can reliably prevent fecal leakage due to the presence of pockets.

[Means to solve the problem]

The above problem is solved in a disposable diaper in which an absorbent body is interposed between a liquid-permeable sheet and a liquid-impermeable sheet; The front and rear ends of the barrier cuffs are folded back outwardly at the middle of their protruding length, and the folded overlapping surfaces are fixed, and at least the folded ends have the stretchable elastic means. Solvable.

[Effect]

In the present invention, the front and back ends of the barrier cuffs are not folded back over the entire length of their protrusion, but are folded back outwards in the middle of their protrusion length, so that the tips of the barrier cuffs face outward and follow the leg. It has excellent elasticity, and since the base faces inward, a pocket is formed to reliably prevent feces from leaking sideways.

〔Example〕

The present invention will be explained below with reference to embodiments shown in the drawings.

In the disposable diaper according to this embodiment, an hourglass-shaped absorbent body 3 made of a cotton-like valve or the like is interposed between a liquid-impermeable sheet l made of a polyethylene sheet or the like and a liquid-permeable sheet 2 made of a nonwoven fabric or the like. There is. This configuration itself is known.

Flaps F are formed on the sides of the absorbent body 3. 4 is a fastening tape.

IO is a barrier cuff, and its material is preferably selected from a hydrophobic material, such as a nonwoven fabric treated with silicone water repellent. barrier cufflinks l
The cuff sheet ll side a of O is fixed onto the liquid-permeable sheet 2 near the side edge of the absorbent body with an adhesive A such as hot melt (the following adhesive is also hot melt). The width of the cuff sheet 11 is quite wide, and it is folded back from the outside to the inside, so that approximately 2/3 of the barrier cuff 10 is doubled. One or more stretchable elastic members 12 such as thread rubber, four in the illustrated example, are provided in an extended state on the edge of the overlapping portion, and are fixed with adhesive A.

On the other hand, the front and rear ends of the barrier cuff lO are folded back outward at the midpoint of their protruding length, 1/2 in the illustrated example, and the folded overlapping surfaces are fixed with adhesive A. Such a fixed portion is designated by the symbol X in FIG. As a result, as shown in FIG. 2, which is a view taken along the line ■-■ in the same figure, but is a view taken along the arrow in the usage state, when the disposable diaper is worn, the elastic member 12
Even when the barrier cuff 10 contracts due to the contraction force of The standing tip side of the IO stands up slightly outward due to the unfolding force of the front and back of the paper diaper.In this state, wearer B
When it comes into contact with the skin of wearer B, the upright tip side of the barrier cuff will lie outward as shown by the imaginary line in Figure 2, and due to the restoring force of the stretchable elastic member 12 there, it will come into soft contact with the skin of wearer B. Become.

By the way, the stretchable elastic member 12 only needs to be present at least at the folded end Lt. Therefore, the base area L
! may exist in

It is also particularly preferred to provide a coarse topsheet 20 spanning the barrier cuffs 10.10. This topsheet 20 desirably includes barrier cuffs 10.10.
It is preferable to provide the liquid-permeable sheet 2 above the surface of the liquid-permeable sheet 2 in the middle of the standing position, leaving at least the tip edge Ll and the base portion.

For this purpose, both side edges of the top sheet 20 are fixed to the lower part of the inner surface of the cuff sheet 11 with adhesive A.

The top sheet 20 lifts up from the liquid-permeable sheet 2 when worn, so if loose stool passes through the rough holes of the top sheet 20 and enters the space between the top sheet 20 and the liquid-permeable sheet 2, the top sheet 2 has no soft stool on the skin. 20, it has excellent feel to the skin and has the advantage of not causing fecal rash.

Topsheet 20 also provides other advantages. In other words, because it straddles the protruding middle part of the barrier cuff 10.
As can be inferred from the figure, due to the width regulation of the top sheet 20, the base of the barrier cuff 10° IO is
Barrier cuffs 10
A pocket P of soft stool is always maintained between the liquid-permeable sheet 10 and the liquid-permeable sheet 10. However, if the inner surface of the base of the cuff sheet 11 is fixed to the liquid-permeable sheet 2 with adhesive A, as shown in Fig. 3, the pocket P can be held at all times. The presence of the top sheet 20 is advantageous in improving the retention of the pocket P since the lO may turn outward.

Note that the front and rear ends of the top sheet 20 are fixed to the liquid-permeable sheet 2. 5 is a waist band made of urethane foam or the like. In FIG. 1, the areas where adhesive is applied for fixing the waist band 5 and bonding the liquid-permeable sheet 2 and the liquid-impermeable sheet 1 are indicated by hatching.

FIG. 4 shows an example in which the barrier cuff lO is not raised from the flap F, but is raised at the position where the absorbent body 3 is present.

FIG. 5 shows an example in which the cuff sheet 11 and the liquid-impermeable sheet 1 are overlapped, and the liquid-permeable sheet 2 is not made to extend over the entire width of the paper diaper.

In addition, on each of the above-mentioned sides, a second elastic member for a gasket can be provided at the flap F portion. For example, in the example shown in FIG. 4, since the side portions of the disposable diaper widely contact the legs, there
can be provided.

By the way, Ll is preferably 5 to 30M1, especially 15 to 20M, L, halo to 5oIl! 111 especially 20-30m
m is preferred.

In the present invention, barrier cuffs can be formed in various ways. As an example, the embodiments shown in FIGS. 6 to 14 can be cited. That is, as shown in FIG.
As shown in Fig. 7, overlap the top sheet 20 only at the tip. As shown in Fig. 8, overlap the whole thing twice. As shown in Fig. 9, attach the end of the top sheet 20 to a cuff. sheet 11
Figure 10~
As shown in FIG. 14, the cuff sheets IIA and IIB are divided.

On the other hand, the top sheet 20 is not essential in the present invention. However, providing the top sheet 2o is effective because it mainly brings about the above two advantages, and in this case,
It is desirable that the eyes or pores have a size and porosity sufficient to allow the solids of soft stool to pass through. The shape of the eyes or through holes is a suitable shape such as round, triangular, square, or rhombus, and the diameter is preferably 3 to 30%, especially 10 to 15%. It is preferable to use a warp-knit, plain weave, plain weave, or basket weave net-like material, and furthermore, the net should be stretchable at least in the longitudinal direction, and more preferably in the lateral direction, so as to provide a comfortable surface to the wearer. Desirable for improving the fit of the sheet. This type of product is available from Azuma etc. Instead of using woven fabric, a film with punched holes formed therein may be used.

〔Effect of the invention〕

As described above, according to the present invention, both the ability to follow the legs and the prevention of fecal leakage can be simultaneously satisfied.

[Brief explanation of drawings]

Figure 1 is a partially cutaway plan view of the disposable diaper in its unfolded state, Figures 2 and 3 are views taken along the ■-■ line and ■-■ line, and Figures 4-
FIG. 14 is a sectional view showing another example of barrier cufflinks. 1... Liquid-impermeable sheet 2... Liquid-permeable sheet 3.
...Absorber 5...Waist band 10...Barrier cuff it, IIA, IIB...Cuff link 2゜2゜...Stretchable elastic member 20...Top sheet

Claims (2)

[Claims] (1) In a paper diaper in which an absorbent body is interposed between a liquid-permeable sheet and a liquid-impermeable sheet; barrier cuffs protruding along the surface on both sides of the paper diaper, and elastic means, the front and rear ends of the barrier cuff are folded back outwardly in the middle of the protruding length, and the folded overlapping surfaces are fixed;
A paper diaper comprising the stretchable elastic means at least along the folded end. (2) The paper diaper according to claim 1, wherein a liquid-permeable topsheet is provided across both barrier cuffs, and this topsheet is fixed to the base of the fold line of the barrier cuffs.