JP3825977B2 - Post-processable pants-type diapers - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pant-type diaper, specifically, a post-processable pant having a waist opening and a pair of left and right leg openings formed by joining both side edges of a front body and a back body. This relates to disposable disposable diapers.
[0002]
[Prior art]
A standard form of this type of pants-type disposable paper diaper has a waist opening and a pair of left and right leg openings joined to both side edges of the front and back bodies.
[0003]
Many disposable disposable diapers in recent years are provided with a so-called post-treatment tape so that the disposal is easy at the time of disposal.
[0004]
This post-treatment tape is generally provided on the back body, the free end of the tape fastener is used as a jacket used when discarding diapers, and the pants-type disposable paper diaper is rolled up into small pieces and then folded in advance. The zipper is extended, and the outer jacket portion is positioned beyond the waist opening and is worn on the front body so that the rolled state is not released.
[0005]
A typical example of this is related to Japanese Utility Model Publication No. 8-10305 having a post-processed tape having a three-layer structure.
[0006]
[Problems to be solved by the invention]
However, this type of post-processing tape does not have a negligible proportion of the cost of the product, and there is a demand for effective use of the material of the disposable diaper body as much as possible due to increased environmental protection.
[0007]
Moreover, when using a post-processing tape, since it is attached to one part of the back body of the paper diaper main body, the direction of rounding is restricted, so that there may be inconveniences that must be redone.
[0008]
Furthermore, if the adhesive at the tip of the tape fastener comes off, or if an attempt is made again thereafter, the adhesive strength of the adhesive may be reduced and the attachment may not be possible.
[0009]
On the other hand, since excrement is likely to leak from the pair of left and right leg openings during post-processing, there are post-processing forms in which both sides are folded inward and then rolled back and forth, but when using a post-processing tape Since the tightening force cannot be increased, such a post-processing form cannot be taken.
[0010]
Accordingly, a main object of the present invention is to provide a structure that can reduce the cost, can effectively use the material of the disposable diaper body, and can simplify the post-processing operation.
[0011]
[Means for Solving the Problems]
The present invention that has solved the above problems is as follows.
<Invention of Claim 1 >
It has a waist opening and a pair of left and right leg openings, and the outer sheet that forms the outer surface of the diaper is folded back to the inner surface of the diaper at the waist opening, and the proximal end of the folded portion is fixed to the inner surface of the diaper, and the distal end portion is free A pants-type diaper with a leak guard sheet formed as a part,
The base end portion of the folded portion is fixed to the inner surface of the diaper so as to be separable, and a holding bag portion having an opening is formed by pinching the free portion of the folded portion and peeling the base end portion. Configured
A post-processable pants-type diaper characterized by that.
[0012]
<Effect>
According to the invention described in this claim, when discarding the diaper, for example, after removing and attaching the diaper, the joint part on both sides of the waistline part is separated, and the accommodation bag is rolled up so as to wrap the inner surface of the paper diaper from the waist opening of the front body or the back body. While winding up to the vicinity of the part, in advance or after that, pinch the free part of the leak guard sheet, peel off the base end part to form an accommodation bag part having an opening, and push the winding part into the accommodation bag part be able to. As a result, the disposable diaper can be discarded without being soiled.
[0013]
Such a leakage guard sheet has been conventionally provided as a waistline leakage preventing sheet on the inner surface of the diaper. The present invention intends to use this as a disposal means. Therefore, since a separate member for disposal such as a post-treatment tape is unnecessary, the material cost can be significantly reduced, and the demand for environmental protection can be satisfied.
[0014]
<Invention of Claim 2 >
The diaper longitudinal length of the folded portion including both the fixed base end portion and the free portion is 60 mm or more, and both side portions thereof are fixed to the inner surface of the diaper, and the longitudinal length of the free portion of the folded portion Is 10 mm or more,
Wherein the bag portion by the proximal portion by pinching the free portion of the folded portion is peeled off, leaving the both sides portions are configured to be formed, the post-processing can pant diaper according to claim 1, wherein .
[0015]
<Effect>
The invention described in this claim relates to a preferred embodiment of the invention described in claim 3, and not only the same effects as the invention described in claim 3 but also the storage bag portion in particular. Since the length in the vertical direction can be formed 60 mm or more, a sufficient size is ensured to accommodate the winding part, and the length of the free part is 10 mm or more. Is played.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings.
FIG. 1 shows an unfolded state of an example of a pants-type diaper, FIG. 2 is a perspective view taken along line XX of FIG. 1, and FIG. 3 is a perspective view of the product. That is, the paper diaper of the present example is composed of an outer sheet 5 and an absorbent element AB that is fixed to the outer sheet 5 and extends in the front-rear direction around the crotch portion 4 in the center of the diaper width direction.
[0017]
The outer surface sheet 5 is formed by laminating and fixing a plurality of non-woven fabrics, and at both ends of the front body F and the rear body B at the final stage of the manufacturing process after the outer surface sheet 5 and the absorbent element AB are overlapped. By joining the entire longitudinal direction by means such as ultrasonic sealing or heat melting (this joint is denoted by reference numeral 30), as shown in FIG. 3, the waist opening WO and the pair of left and right leg openings LO is formed.
[0018]
Here, in the code | symbol of FIG. 1, "vertical direction" means the direction which connects an abdominal side and a back side, and "circumferential direction" means the direction (or product width direction) orthogonal to the said vertical direction. . “Waist opening edge” means the edge of the waist opening WO, and “Leg opening edge” means the edge of the leg opening LO. “Leg opening start end” means a position where the leg opening edge of the leg opening LO intersects the joint 30 and the start point of the leg opening edge. “Torso circumference area” T means the entire area of the length range from the waist opening edge to the leg opening start edge. The waistline region T can be conceptually divided into a “waist portion” W and a “lower waist” U. These lengths in the vertical direction vary depending on the size of the product, but the waist W is 15 to 40 mm and the lower waist U is 45 to 220 mm. “Crotch region” L means the entire region of a length range from the leg opening start end on the front body side to the leg opening start end on the back body side, which forms the leg opening. Further, the “center portion” means an intermediate region excluding the side portion including the center line of the product. The “side portions” mean both side portions in the waistline region T.
[0019]
Between the nonwoven fabrics of the outer surface sheet 5, a plurality of waist elastic members 8 for improving the fit of the waist opening edge to the waist W enhance the fit around the waist to the lower waist U and prevent urine leakage before and after. A plurality of lower waist elastic members 7 are fixed to each other. For the elastic members 7 and 8, for example, natural rubber yarn or synthetic rubber yarn having an appropriate thickness and cross-sectional shape can be used.
[0020]
As clearly shown in FIG. 2, the absorbent element AB is made of, for example, a non-woven fabric or the like, a liquid-permeable top sheet 1 that directly touches the wearer's skin, a plastic film such as polyethylene, or a non-woven fabric subjected to water repellent treatment. If necessary, an absorbent core 3 mainly composed of cotton-like pulp is wrapped with absorbent paper 3A, 3B between the liquid-impermeable back sheet 2 and the peripheral portion is bonded with, for example, a hot melt adhesive. It can be formed as an integrated one. In the illustrated example, a second sheet 6 made of a nonwoven fabric or the like is provided under the liquid-permeable top sheet 1.
[0021]
On the other hand, barrier cuffs 20 around the legs are provided on both sides of the absorber element AB. The barrier cuff 20 constitutes a doubled barrier sheet 21, and the base end portion of the inner side surface of the barrier sheet 21 is fixed to the back sheet 2 with a hot melt adhesive, and the barrier sheet 21. The extended portion of the outer surface of the sheet is fixed to the outer sheet 5 with a hot melt adhesive or the like.
[0022]
In the vicinity of the folding free edge portion of the barrier sheet 21, one or a plurality of tip end elastic members 22 made of a band-like rubber or a thread-like rubber are fixed with a hot melt adhesive or the like under extension. Further, as shown in the drawing, the barrier cuff 20 has an outward portion formed by folding the distal end side outward at substantially the center of the standing free portion, and the inward proximal end portion side (root side) that is not folded. One or a plurality of base end elastic members 22A are fixed by a hot melt adhesive or the like under extension.
[0023]
On the other hand, as shown in FIGS. 1 and 4, the outer sheet 5 forming the diaper outer surface is folded back on the inner surface of the diaper at the waist opening WO, the proximal end portion 51 of the folded portion is fixed to the inner surface of the diaper, the distal portion It is the free portion 52, whereby that are formed leakage guard sheet 50. Although the leak guard sheet 50 in the illustrated example is provided only on the back side, that is, the inner surface of the back body B, in the present invention, a similar guard sheet can be provided on the inner surface of the front body F instead of or together with this. .
[0024]
More specifically, in the leak guard sheet 50 of the present embodiment, the back body side portion of the outer surface sheet 5 is folded back to the inner surface side of the diaper beyond the waist opening WO of the liquid-permeable top sheet 1, and the absorption portion of the folded portion is absorbed. The base end portion 51 up to the position of the upper end portion of the body element AB is fixed to the inner surface of the diaper, in this case, the liquid-permeable top sheet 1, and the portion on the front end side is a non-fixed free portion 52. formed a Tei shall.
[0025]
The present invention uses the existing leak guard sheet 50 to form a storage bag portion inside the diaper. For this reason, in this invention, the base end part 51 of the leak guard sheet | seat 50 is fixed to the inner surface of a diaper so that separation | spacing is possible. Here, “separable” as used in the present invention is weakly fixed or fixed in the form of dots, and the base end portion 51 of the leak guard sheet is easily peeled away from the sheet on the inner surface of the diaper. It is meant to include both of the possible states.
[0026]
Preferably, the diaper longitudinal length 50L of the folded portion including both the fixed base end portion 51 and the free portion 52 is 60 mm or more, and both side portions thereof are fixed to the inner surface of the diaper, and the free portion of the folded portion The longitudinal length of 52 is 10 mm or more. In particular, when both side portions of the leakage guard sheet 50 are heat-sealed at the joint portions 30 at both side edges of the front body F and the back body B, it is desirable that they be heat-sealed together.
[0027]
When disposal of the diaper, disconnecting both the junction 30 of the diaper: both sides, as shown in FIG. 5, folding the both sides of the front body F as shown in FIG. 6 inward, body post which, as shown in FIG. 7 Roll up toward the waist opening WO side of B. On the other hand, in advance or after that, the free portion 52 of the leakage guard sheet 50 is pinched and the base end portion 51 is peeled off leaving both side portions to form an accommodation bag portion 55. As shown in FIG. By pushing the winding part RL into the part 55, the filth can be wrapped and held in a rolled state. This allows the diaper to be discarded without getting dirty. In particular, by setting the longitudinal length of the diaper of the leakage guard sheet 50 to 60 mm or more, the longitudinal length of the storage bag portion 55 can be formed to 60 mm or more, and a sufficient size can be secured to accommodate the winding portion RL. . Further, by setting the length of the free part to 10 mm or more, it is easy to pinch at the time of peeling, and a sufficient leak guard effect can be exhibited.
[0028]
Such a leakage guard sheet 50 is conventionally provided as a waistline leakage preventing sheet on the inner surface of the diaper. In the present invention, this is improved and used as a discarding means. Therefore, since a separate member for disposal such as a post-treatment tape is unnecessary, the material cost can be significantly reduced, and the demand for environmental protection can be satisfied.
[0029]
【The invention's effect】
As described above, according to the present invention, there are advantages that post-processing can be performed reliably and costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a development view of an inner surface side of a pant-type diaper according to the present invention.
FIG. 2 is a view taken along the line XX of FIG. 1 of the pant diaper according to the present invention.
3 is a front perspective view of a pants-type diaper embodiment.
4 is a view taken along the line YY in FIG . 1. FIG.
FIG. 5 is an inner surface development view of a post-processing stage of the embodiment.
FIG. 6 is an inner surface development view of a post-processing stage of the embodiment.
FIG. 7 is a perspective view of a post-processing stage of the embodiment.
FIG. 8 is a perspective view of a post-processing completion state of the embodiment.
[Explanation of symbols]
AB ... Absorber element, F ... Front body, B ... Back body, BN ... Back body inner surface, WO ... Waist opening, 1 ... Liquid-permeable top sheet, 2 ... Liquid-impervious back sheet, 3 ... Absorbent core, DESCRIPTION OF SYMBOLS 5 ... Outer surface sheet, 7 ... Lower waist elastic member, 8 ... Waist elastic member, 20 ... Barrier cuff, 21 ... Barrier sheet, 26 ... Back leak guard part, 30 ... Joint part, 40 ... Storage bag part, 50 ... Leak guard Sheet, 60 ... tape fastener, 70 ... post-treatment tape.

Claims (2)

It has a waist opening and a pair of left and right leg openings, and the outer sheet that forms the outer surface of the diaper is folded back to the inner surface of the diaper at the waist opening. A pants-type diaper with a leak guard sheet formed as a part,
A base end portion of the folded portion is fixed to the inner surface of the diaper so as to be separable, and a holding bag portion having an opening is formed by pinching a free portion of the folded portion and peeling the base end portion. Configured
A post-processable pants-type diaper characterized by that. The diaper longitudinal length of the folded portion including both the fixed base end portion and the free portion is 60 mm or more, and both side portions thereof are fixed to the inner surface of the diaper, and the longitudinal length of the free portion of the folded portion Is 10 mm or more,
Wherein the bag portion by the proximal portion by pinching the free portion of the folded portion is peeled off, leaving the both sides portions are configured to be formed, the post-processing can pant diaper according to claim 1, wherein .

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