JPH085692Y2 - Disposable diapers - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a disposable diaper used for infants, adults or incontinent persons.

[Prior Art] Various disposable diapers have been conventionally proposed. The main disposable diaper among them includes a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber located between these sheets, and a pair of left and right side flaps. It is a so-called flat type in which fasteners (tape fasteners) arranged on both side edges of the side waist portion are fastened in the abdominal region. Further, another type of flat type disposable diaper 1 shown in FIG. 6 has a top sheet 2, a back sheet 3 and a flat sheet as shown in FIG.
The absorbent body 4 and the side flaps 5 and 5 are provided, and the waist portions 5A and 5A on the back side of the side flaps 5 and 5 are respectively extended in the width direction to extend the extension portions so as to cover the body of the wearer. The tape fasteners 6, 6 formed on the respective extending portions are attached to the waist region 7 on the ventral side, and the adhered regions 8 are formed.
It is configured so that it can be attached to. Further, the leg portions 5B and the waist portion 7 of the side flaps 5 and 5 are provided with elastic members 9 and 10, respectively, to improve the fit when worn (Japanese Patent Publication No. 52-40267).

Further, recently, a so-called pants-type disposable diaper in which a pair of left and right side flaps are joined and fixed to both side edges of the ventral region and the dorsal region to form a pair of left and right leg openings and a waist opening, respectively. It has been proposed (JP-A 61-207606). The pants-type disposable diaper is configured such that the leg opening and the waist opening are formed to be expandable and contractable to fit the body shape. Such pants-type disposable diapers can usually be worn by the wearer in a standing position and can be used for toilet training in order to "remove" the infant, or for incontinence or walking. It is useful for adults. In addition, such a pants-type disposable diaper has a well-formed appearance of sewing and tailoring and is intended for disposable clothing.

[Problems to be solved by the device]

However, conventional pants-type disposable diapers
Although it has a flexible fit for the active activities of older children, it is cramped because the size of the egg opening and waist opening cannot be easily passed through, and the wearer can There is a problem that it becomes more difficult to wear when the flaps flap. In addition, the usual pants-type disposable diaper has a problem that it imposes an unreasonable posture on the wearer regardless of whether it is for infants or adults.

Further, the conventional pants-type disposable diaper cannot easily confirm the internal excrement during wearing, and in order to confirm it, it is unavoidable to rely on the wearer's intention to that effect. Since there is no tape fastener, there is a problem that when a used disposable diaper is discarded, it cannot be fixed in the closed state by using the tape fastener after rolling and sealing the inside.

Therefore, the object of the present invention is to make it possible to wear the device without forcing an uncomfortable posture when wearing it, and to easily wear it by fluttering the legs, and moreover, to be able to easily confirm the internal excretion. It is to provide a disposable diaper that can wrap waste and dispose of it.

[Means for solving the problem]

As a result of various studies on the structure of the pants-type disposable diaper, the present inventors have found that the above object can be achieved by making the joints of the left and right side portions of the front and rear waist portions have a specific structure.

The present invention has been made based on the above findings, and includes a liquid-permeable top sheet, a liquid-impermeable back sheet, and
The absorbent body located between these two seats, and the elastic legs that form gathers on the left and right leg portions and the front and rear waist portions formed around the absorbent body, and the front and rear waist portions have both left and right ends. In a pants-type disposable diaper in which a waist opening and a pair of left and right leg openings are respectively joined and fixed by, each of the waist opening and the pair of leg openings on both sides of the waist section. The present invention provides a disposable diaper, characterized in that at least a part between them is provided with a vertical cut portion and a joining means is provided on each of the both side portions.

[Action]

According to the present invention, the legs can be passed through the pair of left and right leg openings through the waist opening, and then the joining means provided on both sides of the waist can be simply attached to the wearer for wearing. it can.

〔Example〕

The present invention will be described below based on the embodiment shown in FIGS. In each drawing, FIG. 1 is a perspective view showing an embodiment of the disposable diaper of the present invention, and FIG. 2 is a partially cutaway front surface side of an intermediate product developed from the disposable diaper shown in FIG. A plan view, FIG. 3 is a perspective view showing a state in which the disposable diaper shown in FIG. 1 is worn by an infant, and FIG. 4 is a view corresponding to FIG. 1 showing another embodiment of the disposable diaper of the present invention.
The drawing is FIG. 2 of the disposable diaper shown in FIG.

The disposable diaper 1 of this embodiment is a pants-type diaper, and as shown in FIG. 1, a liquid-permeable topsheet 2 and
Liquid-impermeable back sheet 3 and both sheets 2, 3
The absorbent body 4 located between them, and the elastic stretchable members 9 forming gathers on the left and right side flap parts 5, 5 and the front and rear waist parts 7, 7 formed around the absorbent body 4,
The front and rear waist portions 7 and 7 are joined and fixed at the left and right ends to form a waist opening 11 and a pair of left and right leg openings 12 and 12, respectively. The side flaps 5 and 5 are formed by superposing the top sheet 2 and the back sheet 3 outwardly in the width direction from both side edge portions of the absorbent body 4, and are formed in the crotch region of the side flaps 11 and 11 at the second position. Legs 5B, 5B curved inward as shown
Are formed.

Thus, at least a part between the waist opening 11 and the leg openings 12, 12 on both sides of the waist portion, that is, from the upper end of the waist opening 11 to the legs in this embodiment. Longitudinal cuts 13 and 13 are provided halfway up to the openings 12 and 12, respectively, and a joining means (tape fastener) 6 is provided in each cut 13 and 13.
6 are provided respectively. The tape fastener 6,
6 are provided on both sides of the waist portion 7 on the rear side separated by the notches 13 and 13 and are formed on both sides of the waist portion 7 on the front side and have an adhesive adherence area 8,
It is constructed so that it can be worn by joining to 8. The tape fastener 6 is preferably a pressure-sensitive adhesive tape, has a strength that does not separate from the adhered area 8 when worn, and when pulled horizontally in a plane,
Its strength is at least 600-3000 grams, and more preferably 1000-2000 grams per inch width.

The notches 13 and 13 will be further described with reference to the intermediate product in which the disposable diaper 1 shown in FIG. 2 is expanded. The notches 13 and 13 are, as described above, the front and rear waist portions 7 and 7. Are formed on both sides of. More specifically, each waist 5A before and after the left and right side flaps 5, 5,
The non-joint portion and the joint portions 5D and 5D are continuously formed along the side edge of 5C, the joint portions 5D and 5D are joined and fixed to each other, and the cut portions 13 and 13 are formed by the remaining non-joint portions. Has been formed. Also, extending flaps 5E, 5E extending outward in the width direction at the non-joint portions of the rear waist portions 5A, 5A.
Are joined to each other, and fasteners 6 and 6 are provided on the extending flaps 5E and 5E, respectively. Also, the joint
2D and 5D are formed to incline outward as they move away from the leg portions 5B and 5B in FIG. 2 and to gradually expand the waist opening 11 toward the opening end when the waist opening 11 is formed. Is preferred. Also, the joint
The length of 5D is preferably 2 to 100 mm, more preferably 15 to 50 mm. The extension length of the extension flap 5E is preferably 5 to 10 mm, more preferably 20 to
70 mm, more preferably 25 to 50 mm. Further, the tape fastener 6 is formed such that its length is equal to the extension length of the extension flap 5E, more preferably shorter than it.

Elastic waist members 5 and 5A on the back sides of the side flaps 5 and 5 are provided with elastic members 14 and 14, respectively. It is preferable that the elastic stretchable members 14 and 14 are stretchable in the width direction around the waist when worn.

More specifically, the present disposable diaper 1 will be described in more detail. The crotch region of the absorbent body 4 is formed in an hourglass shape overflowing, and the topsheet 2 and the backsheet 3 are also curved according to the shape of the absorbent body 4 as described above. Has been done. As shown in FIG. 2, elastic stretchable members 9 and 9 are bent and stretched between the seats 3 and 5 on the leg portions 5B and 5B of the side flaps 5 and 5, respectively. , 9 are configured to contract in the free state to form the leg gathers shown in FIG. 1 to fit the crotch region. Two or more tape fasteners 6 may be attached to each of the extending flaps 5E and 5E.

Thus, the top sheet 2 used in the disposable diaper 1 of the present embodiment is preferably a liquid permeable sheet that allows liquid to permeate the absorbent body 4 and has a feeling close to that of underwear. Such a liquid permeable sheet For example, woven cloth, non-woven cloth, porous film, etc. are preferable. In addition, by applying a hydrophobic compound such as a silicone oil or paraffin wax to the periphery of the top sheet 2 or by applying a hydrophilic compound such as an alkyl phosphate ester in advance and washing the periphery with warm water, By performing water treatment, it is possible to prevent leakage due to overflow of urine or the like at the periphery.

Further, the back sheet 3 used in the disposable diaper 1 of the present embodiment is preferably a vapor-permeable, liquid-impermeable sheet that is permeable to vapor and is stretched by adding a filler to a thermoplastic resin, and has a feel close to that of underwear. What was done is more preferable. As such a liquid impermeable sheet, for example, a composite material of a film and a woven fabric, a composite material of a film and a non-woven fabric, or the like is preferable.

Further, the absorbent body 4 used in the disposable diaper 1 of the present embodiment is preferably one in which a high molecular weight water-absorbing polymer mainly composed of defibrated pulp is used in combination, and a mixture of a thermoplastic resin, a cellulose fiber and a high molecular weight water-absorbing polymer. Those that have been heat treated are preferred. The high-molecular water-absorbing polymer may be present in any of the upper layer, the middle layer, and the lower layer, or may be mixed with pulp. Further, the high-molecular water-absorbing polymer has a retention performance capable of absorbing and retaining a liquid 20 times or more of its own weight, and is preferably in the form of particles having a gelling property,
Examples of such high-molecular water-absorbing polymer include starch-acrylic acid (salt) graft copolymer, starch-
Saponified products of acrylonitrile copolymer, crosslinked products of sodium carboxymethyl cellulose, acrylic acid (salt) polymers and the like are preferable.

The elastic elastic members 9, 10 used in the disposable diaper 1 of the present embodiment are preferably thread rubber, flat rubber, and film type rubber, and preferably have a stress at 70% elongation of 70 to 100 g. The elastic stretchable member 14 is preferably of a non-woven fabric type having stretchability and breathability.

Since the present disposable diaper 1 has the above-mentioned structure, when wearing it, first, as shown in FIG.
Waist opening 11 is expanded at 13 and waist opening 11
After further extending the elastic stretchable members 7 and 14 to pass the left and right legs of the infant through the left and right leg openings 12 and 12, respectively, pull the notches 13 and 13 on both sides of the waist 7 and 7 and pull out the extension portions. Put 5E and 5E on the front waist part 7,
It can then be worn by joining the respective tape fasteners 6, 6 to the attachment areas 8, 8.

Therefore, according to the disposable diaper 1 of the present embodiment, the left and right legs are passed through the left and right leg openings 12 and 12 through the waist opening 11 whose upper ends are loosened by the notches 13 and 13, and then the tape fastener is formed. Since the disposable diaper 1 can be worn only by joining the left and right cut portions 13, 13 with 6, 6, it is possible to easily wear the wearer without forcing the wearer to take an uncomfortable posture. Even when the wearer moves violently by fluttering the legs, the wearer can easily wear it by only passing the left and right legs through the wide waist opening 11. Further, the inside of the present disposable diaper 1 can be easily confirmed by removing the tape fasteners 6 and 6 from the adhered areas 8 and 8, and after the used one is rolled and sealed, If fixed by the tape fasteners 6, 6, it can be discarded as it is.

4 and 5 are views showing another embodiment of the present invention. The disposable diaper 1 of this embodiment has a pair of leg openings at the waist portions 7 and 7 on both sides as shown in FIG. From the parts 12, 12 towards the waist opening 11 these two 1
The configuration is the same as that of the above-described embodiment except that vertical notches 13 and 13 are provided up to the middle of 1 and 12, and tape fasteners 6 and 6 that are biased to the waist opening 11 are provided. Therefore, according to the disposable diaper 1 of the present embodiment, since the leg openings 12 and 12 are loose, it is easy for the legs to pass through the leg openings 12 and 12, and
In addition to relieving the cramped feeling when worn, it is possible to expect the same effects as the above-described embodiment.

The disposable diaper of the present invention is provided with a longitudinal notch at both sides of the waist portion between the waist opening and each of the pair of leg openings, and the joining means is provided at each of the both sides. The positions of the notch and the joining means are not limited to those in the above embodiment as long as they are provided with the elastic expansion and contraction members on both sides.

[Effect of device]

The disposable diaper of the present invention is provided with a longitudinal notch in at least a part between the waist opening and each of the pair of leg openings on both sides of the waist and a joining means is provided on each of the both sides. Therefore, it can be easily worn even if the leg is flapped, without forcing an uncomfortable posture when wearing it, and moreover, it is possible to easily confirm the internal excretion and wrap the excrement. It can be discarded.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the disposable diaper of the present invention, and FIG. 2 is a plan view showing a partially broken surface side of an intermediate product developed from the disposable diaper shown in FIG. 1, FIG. Is a perspective view showing a state in which the disposable diaper shown in FIG. 1 is worn by an infant, FIG. 4 is a view corresponding to FIG. 1 showing another embodiment of the disposable diaper of the present invention, and FIG. 5 is shown in FIG. FIG. 2 and FIG. 6 are perspective views showing an example of a conventional flat type disposable diaper. 1; Disposable diaper, 2; Topsheet 3, Backsheet, 4; Absorber 5B; Leg part 6; Tape fastener (joining means) 7; Waist part 9, 10, 14; Elastic stretchable member 11; Waist opening 12; Leg opening, 13; notch

Claims (5)

[Scope of utility model registration request] 1. A liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber positioned between these sheets, left and right leg portions formed around the absorber, and front and rear waists. In a pants-type disposable diaper that includes elastic stretchable members that form gathers in each part, and front and rear waist parts are joined and fixed at both left and right ends to form a waist opening and a pair of left and right leg openings, respectively. In both side portions of the waist portion, at least a portion between the waist opening portion and each of the pair of leg opening portions is provided with a vertical notch portion, and a joining means is provided on each of the both side portions. A disposable diaper to be used. 2. The disposable diaper according to claim 1, wherein elastic expansion and contraction members are provided on each of the both side portions. 3. The disposable diaper according to claim 1 or 2, wherein the joining means is biased toward the waist opening. 4. The disposable diaper according to claim 1, wherein the notch is provided on the waist opening side. 5. The disposable diaper according to any one of claims 1 to 3, characterized in that the notch is provided on the leg opening side.