JPH08280739A - Throw-away shorts - Google Patents

Abstract

PURPOSE: To provide throw-away shorts which have an excellent adhesion property and air permeability and affords a good feel of use without sweat by disposing plural pieces of elastic materials forming the gathers for fitting to the body part and absorptive material in such a manner that both do not overlap on each other. CONSTITUTION: The waist gathers and leg part gathers are formed by attaching the elastic materials 31, 33 consisting of plural pieces of elastic yarn respectively in the elongated state to the peripheral edge of the waist opening k1 and the preferably edges of leg parts openings JK2 of the throw-away shorts P along these edges. The body part fit gathers attached in the elongated state to the elastic materials 31 and plural pieces of the yarn-shaped elastic materials 32 in parallel therewith along these materials are formed below the waist gathers. The disposing width H of the body part fit gathers in the longitudinal direction of the shorts is preferably set at about 30 to 180mm for adults. About 5 to 30 pieces of the elastic yarn having a diameter of about 0.2 to 0.9mm are disposed at intervals of about 2 to 15mm as the elastic materials 32. The body part fit gathers are positioned upper than the waist side end 22A of the absorptive member 22 so as not to overlap on the absorptive member 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to disposable pants which can be worn by oneself, and more particularly to disposable pants which have high adhesion to a wearer and are excellent in wearing feeling.

[0002]

2. Description of the Related Art Instead of a conventional product that fastens tape to the front and back of a diaper to form a pants type, for example, for infants, disposable pants that have been previously formed into a pants type are commercially available. There is. FIG. 6 shows a disassembly explanatory diagram of such commercially available disposable pants. The disposable pants are composed of an outer sheet 1 and an inner absorbent body 2. In general, the outer sheet 1 has a structure in which an outermost sheet 11 made of a non-woven fabric that emphasizes touch and appearance is laminated with a water-repellent treated non-woven fabric 12 having a leak-proof effect to some extent. Is a plurality of stretched elastic bodies made of synthetic rubber or natural rubber (strips or threads)
While sandwiching between the two, they are adhered by an adhesive applied in a dot shape or a spiral shape. That is, a plurality of elastic bodies 31 and 33 are attached in an extended state near the waist opening and the leg opening to form waist gathers and leg gathers, respectively. Further, a plurality of thread-like elastic bodies 32 are attached in a stretched state below the waist gathers in parallel with the elastic bodies 31 to form a body-fitting gather. This body fit gather has the effect of increasing the adhesion to the wearer's abdomen and buttocks of the disposable pants.

On the other hand, the absorbent main body 2 has an absorbent member 22 interposed between a liquid-impermeable sheet 21 made of a plastic film or the like and a liquid-permeable sheet 23 made of a non-woven fabric or a perforated film to adhere the peripheral edge thereof. Is formed by. If necessary, a pair of rising gathers 24 may be disposed on the upper surface side of the left and right side portions of the liquid permeable sheet 23 to prevent the urine from leaking from the legs. The absorbing member 22 is made of crushed pulp, super absorbent resin, thin paper, or the like, but a thin and relatively hard shape is obtained by mixing fibrous or powdery thermoplastic resin in the crushed pulp and performing heat treatment. It is general to obtain an absorbent member having good stability.

After the absorbent member 22 is laminated on the inner side of the outer sheet 1, it is folded back and forth in the central portion to form two front and rear side edges 5a, 5
Finally, the b is finally formed into a pants type by adhering it by means such as heat sealing or ultrasonic welding.

[0005]

In the disposable pants shown in FIG. 6, the elastic body 32 forming the body fit gather is arranged so as to vertically overlap with the absorbent body 2. However, since the absorbing member 22 has high rigidity,
The range in which the elastic force of the elastic body 32 extends is limited to the left and right side portions where the absorbent body 2 is not arranged. Therefore, even if the body fit gathers are provided all around the pants, it is not possible to closely fit the pants to the wearer's torso.

On the other hand, when the contraction force of the body fit gather is increased, the absorbent member 22 may be deformed. In this case, the absorbent body 2 between the adjacent body fit gathers is
It bulged outwards, and there was a gap between the lower part of the abdomen and the crotch between the wearer and the pants, resulting in a significantly inferior wearing feeling, and the appearance was bulky and not beautiful.

Further, the liquid impermeable sheet 21 of the absorbent body 2
Is arranged over the entire length in the front-rear direction of the pants to prevent leakage, but even if a breathable synthetic resin film having fine pores is used as the liquid-impervious sheet 21, it becomes stuffy after urination. It is difficult to prevent this, and there is a problem that the wearer's abdomen and buttocks are markedly uncomfortable.

[0008] Therefore, an object of the present invention is to provide disposable pants which are extremely well adhered to the wearer without deteriorating the appearance and have good breathability and which prevent the wearer from getting stuffy while wearing the pants. is there.

[0009]

DISCLOSURE OF THE INVENTION Disposable pants according to the present invention are composed of an outer sheet forming a pair of pants having a waist opening and leg openings, and an absorbent main body disposed inside the outer sheet. An elastic body in a stretched state is arranged on the peripheral edge of the part opening and the peripheral edge of the leg opening, and a body fit gather composed of a plurality of elastic bodies is arranged substantially parallel to the waist elastic body. In the disposable pants, the longitudinal end portion of the absorbent member that is loaded between the liquid-permeable sheet and the liquid-impermeable sheet that form the absorbent body,
The gist is that the absorbent member and the body fit gather are provided so as not to overlap each other by being located on the crotch side of the body fit gather elastic body farthest from the waist opening. By adopting this configuration, the elastic force of the body fit gather is exerted without being hindered by the absorbing member, and the adhesion to the wearer is significantly improved. Further, since the absorbent member does not exist around the trunk, the pants are not bulky and the breathability is improved. Not only the absorbing member but also the absorbing main body may be provided so as not to overlap the body fit gather, and further air permeability can be secured.

At both ends in the longitudinal direction of the absorbent main body, a strip-shaped sheet having a structure in which the ends of the extended liquid-impermeable sheet are folded back toward the liquid-permeable sheet, or a liquid-impermeable sheet outside the absorbent body is folded back. A strip-shaped sheet formed by adhering a separate plastic film onto the liquid-impermeable sheet, not a sheet, and the widthwise side edge of the strip-shaped sheet is a liquid-impermeable sheet or a liquid-permeable sheet. Adopting a structure in which it is adhered to the seat and formed in the shape of a pocket that is open at the center side in the longitudinal direction of the pants has the effect of preventing as much as possible the leakage of urine that may be caused by the absorbent member having a small area. Have. When an elastic member in a stretched state is attached to the opening edge of the strip-shaped sheet forming the pocket,
The effect of preventing urine leakage becomes even more remarkable.

The outer sheet of the disposable pants has a structure in which two non-woven fabrics and an elastic body are sandwiched between the non-woven fabrics, and the outermost non-woven fabric is extended on the waist opening side, and the extended portion is an inner side. The structure in which at least the elastic member for the waist opening is folded back and laminated with the breathable sheet so as to cover from the folded portion to the end in the longitudinal direction of the absorbent main body is the appearance inside the pants. Is a preferred embodiment for making the product beautiful. The disposable pants of the present invention are particularly useful as incontinence pants for adults.

[0012]

In the present invention, by disposing the plurality of elastic bodies forming the body fit gather and the absorbing member so as not to overlap with each other, the body fit gather can freely expand and contract without being obstructed by the absorbing member. To do. Therefore, it is possible to surely adhere to the abdomen, buttocks, and back of the wearer. Also, since there is no absorbent member inside the body fit gather, it does not swell on the wearer's abdomen / back and feels uncomfortable, and wears normal pants while wearing disposable pants. Also, the appearance does not feel uncomfortable.

On the other hand, in the present invention, not only the absorbing member but also the absorbing body is arranged so as not to overlap the body fit gather, so that the liquid impermeable sheet of the absorbing body is provided at least at the portion where the absorbing member exists. Only the sheet in which the two nonwoven fabrics are laminated can have a very excellent air permeability in the portion where the body fit gather is located. As a result, the discomfort caused by the dampness inside the pants is eliminated, and the wearing feeling is dramatically improved.

It is expected that urine and the like will leak in the front-back direction of the absorbing member due to the reduction of the area of the absorbing member.
Therefore, in order to prevent this urine leakage, it is recommended to dispose a waterproof belt-like sheet at the longitudinal end of the absorbent body. This strip-shaped sheet may be either a liquid-impermeable sheet having an end portion folded back to the liquid-permeable sheet side, or a separate plastic film bonded to the liquid-impermeable sheet end portion. Preferably, the widthwise side edge of the strip-shaped sheet is adhered to the liquid-permeable sheet side to form a pocket opening to the center of the pants, so that urine flowing on the upper surface of the liquid-permeable sheet or urine soaked into the absorbent member is abdomen. And do not leak to the back. If an elastic body in a stretched state is additionally provided at the opening edge of the pocket, the edge of the belt-shaped sheet is brought into close contact with the skin of the wearer, and the effect of preventing urine leakage is further ensured.

In the present invention, the outer sheet has a structure in which two nonwoven fabrics and an elastic body are sandwiched between the nonwoven fabrics, and the outermost nonwoven fabric is extended on the waist opening side, and the extended portion is inside. It is also possible to add a configuration in which the elastic member for the waist opening portion is folded back and laminated on at least the waist opening elastic member. In this case, the effect of improving the strength of the waist opening, improving the feel of the waist, softening the compression of the waist elastic body, and the like are recognized. Further, a breathable sheet may be laminated so as to cover from the folded back portion of the waist to the longitudinal end of the absorbent main body, and this configuration prevents the longitudinal end of the absorbent main body from being exposed inside the pants. You can It is preferable that the breathable sheet is adhered with an adhesive in the form of a mist, a mesh, dots, or a spiral so as not to impair the breathability of this portion. The upper surface of the liquid permeable sheet of the absorbent main body may be provided with rising gathers at the left and right side positions thereof to surely prevent urine leakage from the leg openings.

The disposable pants having the above-mentioned structure can be applied to both infants and adults. Especially, the wearer of the disposable pants for adults often wears the pants and has a great opportunity to carry out a social life outdoors. The use of stiff disposable pants may make it difficult to put ordinary clothes on it, and the disposable pants of the present invention are extremely suitable for wearing on such an adult, and are suitable for adult sizes. It is effective to form.

[0017]

FIG. 1 is a front explanatory view showing an embodiment of the disposable pants of the present invention. The disposable pants P are joined by the welded portions 5 and 5 on the side portions, and form a waist opening K _{1 in the} upper part and a pair of leg openings K ₂ , K ₂ in the lower part. The periphery of the waist opening K ₁ and the leg opening K
Elastic bodies 31, 33 made of a plurality of elastic threads are provided around the periphery of _2.
Are attached in an extended state to form waist gathers and leg gathers, respectively. Further, a plurality of thread-like elastic bodies 32 are attached in a stretched state below the waist gathers in parallel with the elastic bodies 31 to form a body-fitting gather. The width H of the body fit gather in the front-back direction of the pants is recommended to be within the range of 30 to 180 mm for adults,
As the elastic body 32, it is preferable to arrange 5 to 30 elastic threads having a diameter of 0.2 to 0.9 mm at intervals of 2 to 15 mm.

In the present invention, the waist fit gather is the waist end 2 of the absorbent member 22 interposed in the absorbent body 2.
2A, the absorbent member 2 is located at an upper portion in FIG.
It is important that 2 and the body fit gather do not overlap. That is, as shown in the partially cutout disassembly explanatory view of FIG. 2, the elastic body 32A at the position closest to the inseam of the upper body fit gather of FIG. The elastic body 32B, which is located on the waistline W ₁ side and is closest to the inseam of the body fit gather on the front body of the pants, is located on the waistline W ₂ side of the other end 22B of the absorbent member 22. ing. As will be described later, the absorbent body 2 has a configuration in which the absorbent member 22 is sandwiched between a liquid impermeable sheet and a liquid permeable sheet, and is formed slightly larger than the absorbent member. However, because the rigidity of the absorbent member 22 hinders the expansion and contraction of the body fit gather, only the absorbent member 22 may be configured so as not to overlap the body fit gather, and the end of the absorbent main body 2 is Part of the gathers may overlap. However, since it is difficult to prevent stuffiness when the liquid-impermeable sheet of the absorbent body 2 has the second area, it is preferable that the absorbent body 2 itself has a small area such that it does not overlap the body fit gather.

Further, the structure of the pants of the present invention will be described in detail with reference to FIGS. First, the outer sheet 1 is constituted by laminating the outermost sheet 11 and the inner sheet 12 (both of which are preferably non-woven fabric), and the sheets 11 and 1
Elastic members 31, 32, and 33 in a stretched state are sandwiched between the two, and both sheets are applied to both sheets by a hot-melt adhesive applied in a mist, mesh, dot, or spiral shape to the extent that air permeability is not impaired. To be glued. A fold-back portion 11a is extended at the waist end of the outer sheet 11, and after the inner sheet 12 is laminated, the fold-back portion 11a is formed on the upper surface of the sheet 12.
A is folded back to form the end portion of the outer sheet beautifully.

The absorbent body 2 is constructed by loading the absorbent member 22 between the liquid-impermeable sheet 21 and the liquid-permeable sheet 23 and adhering the peripheral edges. The absorbing member 22 can be formed by mixing pulverized pulp, a super absorbent resin, or a fibrous or powdery thermoplastic resin, forming a mat, and covering with a thin paper. It is preferable to heat-treat after coating with a thin paper to enhance the shape stability. By disposing a pair of rising gathers 24, 24 on the left and right sides of the liquid-permeable sheet 23, it is possible to reliably prevent leakage from the leg openings. One side edge of the rising gather 24 is formed in a bag shape, and an elastic thread 24a in a stretched state is attached to the inside thereof, and the other side edge is bonded to the liquid permeable sheet 23 or the outer sheet 1. Both longitudinal ends of the rising gather 24 are bonded to the upper surface of the liquid permeable sheet 23.

The absorbent body 2 is laminated and adhered to the central portion of the outer sheet 1. It is preferable that the breathable sheets 13, 13 are laminated from the longitudinal end of the absorbent body 2 to the waist line. As the sheet 13, a non-woven fabric, a perforated film, or the like is used. By covering the end of the absorbent main body 2 with the sheet 13, it is possible to prevent the end of the absorbent main body 2 from being exposed to the skin side in the pants and to finish the absorbent body 2 into a beautiful shape. After the absorbent main body 2 is laminated, the outer sheet 1 is folded in half in the longitudinal direction, and both side portions 5a and 5b are bonded by a welding means such as heat sealing to form a pants type.

In the present invention, since the absorbent member 22 and the elastic body 32 of the body fit gather are not overlapped with each other in this manner, the body fit gather can freely expand and contract, and the wearer's abdomen and buttocks can be prevented from having pants. It is structured to ensure close contact. Further, this body fit gather portion has a breathable outer sheet 1, and if necessary, a breathable sheet 1
Since only 3 is laminated, the breathability of this part is high,
It is possible to reliably prevent stuffiness in the disposable pants.

FIG. 4 shows another embodiment of the disposable pants of the present invention, and is a cross-sectional view of a main part of the center of the pants which is cut in the longitudinal direction. The folded-back portion 11a is formed at the end portion of the outermost sheet 11 as described above. Then, at the longitudinal end portion (waist side end portion) 2A of the absorbent body 2, the liquid impermeable sheet 21 is folded back to form a folded portion 21a,
The left and right sides of the folded-back portion 21a are adhered to the liquid-permeable sheet 23, and a strip-shaped sheet 25 forming a pocket-shaped opening D is formed on the center side of the pants. The strip-shaped sheet 25 has a function of capturing urine or the like flowing on the upper surface of the liquid-permeable sheet 23 and preventing urine or the like from leaking from the end portion of the absorbing member 22. It is preferable that the edge of the opening D in the belt-like sheet 25 is folded back into a bag shape, and an elastic thread 34 in an elongated state is additionally provided therein, because the elastic thread 34 closely contacts the wearer's skin. It is possible to prevent urine from leaking to the outside of the absorbent body 2 through the skin.

FIG. 5 is a partial cross-sectional view showing an embodiment in which the belt-shaped sheet 25 is formed by another member. The belt-shaped sheet 25 is
It is formed at least equal to the length of the absorbent body 2 in the width direction (the penetrating direction in FIG. 5), and the waist-side edge 25b is laminated and adhered to the end 21b of the liquid impermeable sheet 21. The other edge of the strip-shaped sheet may be formed with a pocket-shaped opening D on the center side of the pants as shown in FIG. 4, or may be entirely adhered to the upper surface of the liquid-permeable sheet 23. It doesn't matter.

[0025]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, since the expansion and contraction force of the body fit gather is exerted without being hindered by the absorbent body, the adhesion is very good and the body is Since there is no absorbent body inside the fit gather, the appearance of the pants is beautiful without being bulky. Further, in the present invention, since the liquid-impermeable sheet is not laminated on the inner side of the body fit gather, the breathability of the pants covering the abdomen, buttocks and back of the wearer is extremely high and prevents stuffiness in the pants. The feeling of wearing is further improved.

[Brief description of drawings]

FIG. 1 is a front explanatory view of disposable pants of the present invention.

FIG. 2 is an explanatory view of disassembling the disposable pants shown in FIG.

FIG. 3 is an exploded view of the disposable pants shown in FIG.

FIG. 4 is a partial cross-sectional explanatory view in the longitudinal direction of the disposable pants of the present invention.

FIG. 5 is a partial cross-sectional explanatory view in the longitudinal direction of the disposable pants of the present invention.

FIG. 6 is an explanatory view of disassembling a conventional disposable pants.

[Explanation of symbols]

 1 Outer sheet 2 Absorbing body 11 Outermost sheet 12 Inner sheet 21 Liquid-impermeable sheet 22 Absorbing member 23 Liquid-permeable sheet 24 Rising gathers 31, 32, 33 Elastic body

Front page continuation (72) Inventor Sachiko Ishida 1-41-1 Kawaramachi, Chuo-ku, Osaka Toyo Eisai Co., Ltd.

Claims (8)

[Claims] 1. An outer sheet that forms pants having a waist opening and leg openings, and an absorbent body disposed inside the outer sheet, and is provided on the periphery of the waist opening and the periphery of the leg opening. Disposable pants in which an elastic body in a stretched state is arranged and a body fit gather made of a plurality of elastic bodies is arranged substantially parallel to the waist elastic body. The absorbent member, which is loaded between the liquid sheet and the liquid-impermeable sheet, has its longitudinal end located at a position closer to the crotch side than the waist fit-gather elastic body farthest from the waist opening. Disposable pants, characterized in that the body fit gathers are provided so that they do not overlap. 2. An outer sheet forming a pair of pants having a waist opening and leg openings, and an absorbent main body disposed inside the outer sheet. The absorbent body is provided on the periphery of the waist opening and the leg openings. Disposable pants in which an elastic body in a stretched state is arranged and a body fit gather made up of a plurality of elastic bodies is arranged substantially parallel to the waist elastic body, wherein a longitudinal end of the absorbent body is provided. Disposable pants, wherein the absorbent body and the trunk-fitting gather are provided so as not to overlap each other by arranging the absorbent body and the trunk-fitting gather apart from the waist opening farthest from the waist-fitting elastic body. . 3. A strip-shaped sheet having a structure in which an end portion of an extended liquid-impermeable sheet is folded back to the liquid-permeable sheet side at both longitudinal ends of the absorbent body. The disposable pants described in 2. 4. The strip-shaped sheet according to claim 3, which is formed by adhering a separate plastic film onto the liquid-impermeable sheet, not by folding back the liquid-impermeable sheet outside the absorbent book. The disposable pants according to claim 1 or 2. 5. The strip-shaped sheet according to claim 3, wherein the side edges in the width direction are bonded to the liquid-impermeable sheet or the liquid-permeable sheet, and are formed in a pocket shape having an opening at the center side in the longitudinal direction of the pants. Disposable pants. 6. The disposable pants according to claim 5, wherein an elastic member in a stretched state is attached to an opening edge of the strip-shaped sheet forming the pocket. 7. The outer sheet has a structure in which two nonwoven fabrics and an elastic body are sandwiched between the nonwoven fabrics, and the outermost nonwoven fabric is extended on the waist opening side, and the extended portion is inward. 7. The folded back sheet is laminated at least on the waist opening elastic body, and the breathable sheet is laminated so as to cover the folded body portion and the absorbent main body longitudinal direction end portion. Disposable pants described in. 8. The disposable pants according to claim 1, which are formed in a size for adults.