JPS5971401A - Disposable diaper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disposable diaper for treating excrement.

Conventionally, so-called pants-type disposable diapers for adults and infants have been put into practical use. These diapers are equipped with a tightening member that presses against the wearer's leg circumference in both measuring parts of the inseam area, and prevents leakage of urine from the loop ψ circumference.
It is effective in preventing Lt-. However, these diapers, especially those for adults, have a much larger volume and absorption capacity than those for infants, but they tend to be more susceptible to diapers that require a large amount of urine or are worn for a relatively long time. In the case of elderly or sick people, urination may leak from the lower back from the leg circumference and lower back area, and in the case of elderly and sick people, urine may leak from the lower back area, wetting the lower layers and bedding, not only the wearer. , which may cause discomfort to the caretaker.

An object of the present invention is to solve the above-mentioned drawbacks, and to provide a disposable diaper that can be simply formed into a rectangular shape if necessary, and that is suitable for use in combination with another diaper such as a conventional disposable diaper. It is about providing.

Preferred embodiments of the diaper of the present invention that can achieve the above-mentioned objective t are explained below based on all the illustrated examples.

In FIGS. 1 to 5, the percentage first diaper l is shown. This footwear 1 includes both the front area 2, the back area 3, and the crotch area 4, and extends from both ends of the waist part 50 in the back area 3. It is designed to be assembled and worn by being placed in the vicinity of the waist portion 6a on the leg side end of the T-front 5 side area 2.

Furthermore, the diaper 1 includes a water permeable top sheet 8, an impermeable back sheet 9, an absorbent core 10, a side flap part 11, a first elastic part 12, a second elastic member 13,
The tightening consists of a strip 14.

The top sheet 8 and the back sheet 9 are generally rectangular non-woven fabrics made from flexible plastic films, especially the former, where no fiber binder is used. Preferably, the J:b fibers are entangled in a high-speed liquid processing method.

The core 10 is generally made as the main material of the rutting valve, and if necessary, its upper and lower surfaces are covered with a tissue base (- or a hydrophobic net-like sheet) as in conventionally known diapers. The core lO is located in the portion 1 in the dorsal region 3, as shown in FIGS. 2 and 4.
0a is a thick layer, and the portion Job, Inc in the front side area 2 and crotch area 4 is formed to be a thinner layer than the part 10a.
ing. This is how it is formed.

The absorption of the waist part 5 in the dorsal region 3 is increased to prevent urine leakage from this part, and the inseam region 4'ft is adapted to the wearer's inseam by the second elastic member 13. 1 part to make it easier to adhere and 1 part from the wearer
: In the first diaper 1 when used by overlapping the I/C to absorb urine and prevent its leakage, the crotch area 4
The core portion 100 may be formed into a thinner layer, as shown in FIG. Such core 1
0 is interposed and fixed between the top sheet 8 and the back sheet 9 with an adhesive, so that it will not accidentally move while the diaper 1 is being worn.

The top sheet 8 and back sheet 90 portions extending from the outer peripheral end of the core 10 are bonded to each other with adhesive. A telescopic member 12 is telescopically attached. ′! A second elastic member 13 is fixed between the two-purpose elastic member 12 and between the back sheet 9 and the core 10. Both members 12 and 13 are made of a plurality of rubber threads,
Although they are arranged at appropriate intervals, it is preferable that the cross-sectional area of the 11 pieces is 0.03 mm2 to 1.5 mm2. However, the width of both members 12.13 is 10 uun-y3
0. mm, or a single piece of foam tape such as urethane having a thickness of 0.3 mm to 3 mm (and if there is only one member 13, a tape in the center between the two members 120) may be used. Needless to say, the elements 12 are fixed to the topsheet 8t7 and the backplate 9, and the member 13 is fixed to the backsheet 9 and/or the core 10 with adhesive. ing.

The tightening strip 14 is attached to the waist portion 5 in the back stretch area.
It extends from both side ends and consists of a sheet portion 15 and an adhesive tape portion 7. The sheet portion 15 is made of one or a combination of a plurality of plastic films, non-woven fabrics, W&cloth paper, and its negative side end is adhered to the back sheet 9 of the waist portion 5. , the seat portion 15 may also be made from a non-shrinkable material, but may be made from a conventionally known 119
Preferably, it is made from a stretchable material such as a woven fabric with rubber threads, such as a band, or a foam sheet. 9. The adhesive tape portion 7 is a known adhesive tape commonly used in disposable diapers. Its negative end is glued to the sheet portion 15. Further, the adhesive tape portion 7 does not necessarily have to be made to protrude from the sheet portion 15 during use, and may be provided by directly applying an adhesive to the inner surface of the sheet portion 15. . The adhesive surface of the adhesive tape portion 7 is temporarily attached to the mold release portion for protection, but even if the mold release portion is also tape-like, it is not attached to the inner surface of the sheet portion 15. The agent is applied directly.
It may also be provided by

A reinforcing means 16 is provided on the lower surface of the back sheet 9 in the front area 2 for attaching and detaching the entire adhesive tape portion 7. The reinforcing means 16 is provided by joining sheet pieces such as plastic films or by applying a cording agent such as hot melt adhesive. The reinforcing means 16 may be provided on the upper surface (inner surface) of the back sheet, which is different from the illustrated example.

A configuration like the one mentioned above? The first diaper l having a front area 2. if necessary. A second diaper 17 is placed on the upper surface of the inseam area 4.
The second diaper 17 can be used in combination with disposable diapers conventionally used in diaper covers, such as those in which the absorbent core is wrapped in a water-permeable sheet to form a rectangular shape, or The sexual core may be formed into a rectangular shape with a width fL by a water-permeable top sheet and a water-impermeable back sheet, but the second diaper 17 shown in FIGS. This is preferable because it makes effective use of the material and effectively prevents urine leakage.

Figure 6~gl! The diaper 17 shown in Figure 8 consists of a top sheet 18, a back sheet 19, and both sheets)-18.
It consists of an absorbent core 21 that is divided into a plurality of blocks in the length direction by non-absorbing and diffusive barriers that are interposed at the openings of 19 degrees and cross in the width direction. Examples of the diaper 17 include the embodiments shown in FIGS. 8A to 8D. In the barrier type shown in FIG. 8A, a part of the back sheet 19 is located inside.
Formed by joining the upper end of this part to the top sheet 18 by means of a welding layer or the like.
It's cool. The barrier 20 shown in FIG.
It is formed by folding it halfway in the thickness direction.

The barrier 2o in Fig. 8 CK has a core 21 of hydrophobic foam.
The intervening barrier tL is designed to be formed in the thickness direction. The barrier type in Figure 8 DK is the top sheet 18
It is formed by joining a portion of the back sheet 19 and the back sheet 19 to each other by means of a melting layer or the like. For each barrier side (■) in FIG. 8B (when the barrier 20 reaches halfway in the thickness direction of the core 21, the height is
The thickness of the core 21 is preferably at least 10≠.Furthermore, the core 21 has a thickness of 10≠ or more. 7ζ Preferably wrapped by part 4 of the back sheet 19 and I/- b0 Top sheet 18 Th Back sheet 1
9. Like the first diaper 1, the core 21 is made of a nonwoven fabric, a plastic film, and a peripheral valve.
Ru. The hydrophobic foam 24 is composed of water-resistant paper, hydrophobic fibers, hydrophobic foam, etc. The first diaper 1 of the present invention has an X (FpafMJ material 12) and a second material 13, so both sides of the diaper 10 fit around the user's bow legs. Not only that, but also the diaper crotch area 4
The center part of the garment fits snugly against the wearer's crotch. Since the absorbent core 10c in the crotch area 4 where the elastic member 13 acts is formed in a thin layer, the second elastic member 13 acts sufficiently on this area and the second elastic member 13 acts on the area. Even when the bulges 17 are overlapped, they still act to fit and fit tightly against the wearer's crotch. Moreover, since the absorbent core 10a in the back region 3 of the ml diaper 1 is formed in a thick layer, the absorbent capacity of this region/C increases. Therefore, especially compared to infants, there are more urinary baskets9
Even if worn by an elderly or sick person with a length of 7m, the wearer's n1
I wonder if urination leaks not only from Sha but also from the M part (.

It is possible to achieve the intended purpose.

1st page 2nd page J7 with 1 illustrated example of construction
L'2) When used in combination with K 2341 Omu L, it is divided into multiple blocks in the length direction according to its absorbent core 21 or non-absorbing and diffusive barrier. The EP discharged into the second pot 17 is condensed over time and in stages from one end of its length to the other for each block. Therefore, the diaper 17 can be effectively used from one end to the other end in its lengthwise direction, and the initial urination fluid will not immediately reach the other end and leak from the other end. Therefore, as shown in the example, the second omu is 17th and the first
When combined with a diaper, the urine leakage 11 can be more effectively prevented, and since the Schiff 71 diaper is almost always soiled with urine, it should be used multiple times. You can also do that.

Further, the back seam b9 is provided with a strong means 16 for attaching and detaching the adhesive tape portion 7ye.

Adhesive tape part'f! : No matter how many times the layers come off, back sheet 9
0 The part will not be damaged.

[Brief explanation of the drawing]

Figure 1 is a developed plan view of the first diaper, Figure 2 is Figure 1
3 is a sectional view taken along the line 1-1f in FIG.
Fig. 5 is a sectional view taken along line V-V in Fig. 1, Fig. 6 is a plan view of the second diaper, Fig. 7 is a sectional view taken along line vH-Vlr in Fig. 6, and Fig. 8 is a sectional view taken along line V-V in Fig. 1.
1i9A-11j: Fig. 6 Condition a on VJl[-'Vl line! FIG. 1@@11 First diaper 2-・front area 3e1 dorsal area 4-・-j drop area 5.6... x ,
G part 741 ea @ Adhesive tape part 8 @ - Top sheet, G 9 @ - Back sheet lO... Core
11e...Side 7 run knob part 12@@@1st shrinking member 13...2nd flF shrinking member 14e...Tightening band piece 154I...Seat portion 1611 reinforcing means 17...2nd diaper 18 ...Top Sea)
19.4 + Book back sheet addition - - Barrier 2
1@... Core Figure 6 1 ■ 8th A B Figure 7 CD

Claims (1)

[Scope of Claims] (1) A water-permeable top sheet, an impermeable 7X back sheet, and an absorbent core interposed between the two sheets. An arbitrary number of Ml extension members r′L are installed in the longitudinal B direction in the side flap portion extending from both ends of the core r, and both 11Q ends of the waist portion in the back extension area. the core in the dorsal area of the baby is thick and the core in the front area and the crotch area is thin; The above-mentioned diaper is characterized in that an arbitrary number of second elastic members are attached between the first elastic members on both sides, and also on the back sheet and the core, in an open stitch pattern in the length direction. (2) The disposable diaper according to claim 1, wherein the core in the crotch area of the diaper is formed in a layer M thicker than the cores in the front and back areas. (ill) The disposable diaper according to claim 1, wherein the first end and the second elastic member are each made of a plurality of rubber threads each having a cross-sectional area of 0.03 nm2 to 1.5 nm2. (4) Both fO of the waist part in the 1st stretch area of the diaper
A strip for tightening extends from the end [7, the strip is attached to the black end of the waist portion, and
The disposable diaper according to claim 1, comprising: a depletion tape portion provided on the sheet portion; (5) The disposable diaper according to claim M4, wherein the sheet portion of the tightening band is elastic. (6) The backsheet in the front area of the diaper is
The disposable diaper according to claim 1, further comprising reinforcing means. (72) The disposable diaper according to claim 6, wherein the reinforcing means of the back sheet is provided by adhering a reinforcing sheet piece to the back sheet. (8) The reinforcing means of the back sheet is (9) Water-retaining top sheet , a water-impermeable backsheet, an absorbent core interposed between the two sheets, and side flaps extending from both ends of the core that extend freely in the longitudinal direction. An arbitrary number of NL l elastic members and an arbitrary number of L! Consisting of 2 telescopic members &l
Il diaper; formed to have a length shorter than the length of the first diaper and to have a narrow length and width between the two sets of diapers; and an absorbent core, and the entire core. A disposable diaper comprising: a second diaper used in combination with the first diaper; a sheet that is entirely water permeable on the upper surface; and a second diaper used in combination with the first diaper. The disposable diaper according to claim 9, wherein the core layer in the front region and the crotch region is also formed into a thick layer. A cloth disposable diaper as set forth in claim 9, wherein an absorbent core is interposed between the diaper and the diaper. The core is divided into a plurality of blocks in the length direction by non-absorbing and diffusive barriers arranged so that the core has a high density of at least 10% in the thickness direction. Disposable diaper according to item 11. (2) The core of the second diaper has opposing ends in the length direction or width direction extending from the ends and folded rL.
The disposable diaper according to claim 11, which is wrapped with a 7c backsheet.