JPH0324175Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a disposable diaper that absorbs and retains excrement.

(Prior art) Conventionally, in disposable diapers, in order to prevent the leakage of excrement from the back waist, the absorbent material near the back waist is covered with a water-impermeable sheet, or the back waist is covered with a water-impermeable sheet. A device equipped with a telescopic member is known.

(Problems to be solved by the invention) The former of the above-mentioned known diapers is somewhat effective only when the back waist of the diaper comes into close contact with the body;
If the tightening state of the waist loosens due to body movement, etc., the entire body may not fit tightly. In addition, in the latter of the known diapers, an elastic member is attached during the manufacturing process of the diaper body, and in the case of a diaper that uses an elastic member that is supplied while being stretched, the direction of movement of the constituent members of the diaper body, that is, the mechanical Since the elastic member is supplied and attached while being stretched in the lateral direction that intersects the direction, productivity is lower than when the elastic member is not attached. Excrement may leak out when the bag turns over, and prevention of this problem is still insufficient.

(Means/Examples for Solving the Problems) The gist of the means of the present invention for solving the above problems is to provide a water-permeable top sheet, a water-impermeable back sheet, and the front and back sheets. an absorbent body interposed therebetween, an elastic member attached under extension in the longitudinal direction in a flap formed by the front and back sheets extending outward from opposite side edges of the absorbent body, and an opposite side of the dorsal waist. A disposable diaper including a tape fastener attached to the side, and a breathable waterproof sheet piece is provided on the surface of the back waist region, and the breathable waterproof sheet piece has an inner end and an opposite side facing the top surface of the top sheet. and a second elastic member is attached under extension along the outer edge of the diaper which is not joined.

Further, the present invention will be explained based on the illustrated embodiments as follows.

The diaper is made of a water-permeable top sheet such as non-woven fabric.
, a water-impermeable back sheet 2 such as a plastic film, an absorbent body 3 such as crushed pulp interposed between the front and back sheets 1 and 2, and the absorbent body 3
an elastic member 5 attached extending in the longitudinal direction in the flap 4 formed by the front and back sheets 1 and 2 extending outward from opposite side edges of the flap; and a pressure-sensitive adhesive attached to the opposite side of the back waist. tape 6. Such diapers are generally known.

A feature of the present invention is that such a diaper is provided with a breathable and waterproof sheet piece 7 on the surface of the back waist region. That is, the breathable and waterproof sheet piece 7 has an inner end 7a and an opposite side 7b.
are joined to the upper surface of the topsheet 1, and an elastic member 8 is attached under extension along the outer end 7c which is not joined, and is covered by the folded portion of the outer end 7c. As the breathable and waterproof sheet piece 7, a known material such as a fine porous plastic film or a woven fiber fabric treated with a resin so as to maintain a required degree of breathability can be used. The breathable and waterproof sheet piece 7 has an outer end 7c that extends outward from the opposite end of the absorbent body 3.
It is preferable that the outer end is retracted so as not to protrude from the outer end. In some cases, the breathable waterproof sheeting piece 7 may be attached to the front waist area.

In addition, the outer end of a waterproof sheet piece 10 such as plastic film or waterproof paper is integrally joined between the front and back sheets 1 and 2 of the back waist flap 9, and the inner end is attached to the top sheet 1 and absorbed. It is interposed between the body 3 and the breathable and waterproof sheet piece 7 to prevent leakage of excretory fluid.

(Operations and Effects of the Invention) Since the present invention is constructed as described above, when the diaper is worn, the breathable and waterproof sheet piece 7 is brought into close contact with the dorsal waist of the body by means of the elastic member 8, so that it can be easily moved from there. It is possible to prevent excrement from leaking, and it is also possible to prevent stuffiness inside the diaper by allowing ventilation between the inside and outside of the diaper. Moreover, since the breathable and waterproof sheet piece 7 is formed separately from the diaper body and attached thereto,
This can be formed in advance and supplied as is to the assembly process of the constituent members of the diaper main body, so that the productivity of the diaper will not be reduced.
Furthermore, when the diaper is worn, the outer end 7c of the breathable waterproof sheet piece 7 does not protrude from the outer end 9a of the back waist, that is, it is completely covered with the back waist. This prevents excrement from leaking out due to it turning over.

Therefore, the present invention is extremely useful for practical use as a means for preventing air leakage at the waist of disposable diapers.

[Brief explanation of drawings]

The drawings show an embodiment of the diaper of the present invention; FIG. 1 is an assembled perspective view, FIG. 2 is a partially cutaway developed plan view, and FIG. 3 is a sectional view taken along the line of FIG. 2. 1...Top sheet, 2...Back sheet, 3...
Absorbent body, 4... flap, 5... elastic member, 6...
...Tape fastener, 7...Breathable waterproof sheet piece,
8...Extensible member.

Claims (1)

[Claims for Utility Model Registration] (1) A water-permeable top sheet, a water-impermeable back sheet, an absorbent body interposed between the front and back sheets, and an absorbent body extending outward from opposite side edges of the absorbent body. an elastic member attached to extend in the longitudinal direction of the flap formed by the front and back sheets to be released;
A disposable diaper including a tape fastener attached to the opposite side of the back waist region, wherein a breathable waterproof sheet piece is provided on the surface of the back waist region, and the breathable waterproof sheet piece has an inner end and an opposite side. bonded to the top surface of the top sheet,
A diaper as described above, characterized in that a second elastic member is attached in an elongated manner along the unjoined outer edge thereof. (2) The diaper according to claim 1, wherein the second elastic member is covered by a folded portion of the outer end of the breathable and waterproof sheet piece. (3) The diaper according to claim 1, wherein the outer end of the breathable and waterproof sheet piece does not protrude outward from the outer end of the back waist.