JPH1147188A - Disposable wear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase a fitting property, prevent a leak, and improve the fitting feeling by forming leg gathers with expansion elastic members made of multiple linear materials, and widening the layout interval on the rear garment body side than on the front garment body side across the groin area. SOLUTION: Leg expansion members 8 forming leg gathers are made of multiple linear materials. The mutual layout interval of the gathers on the rear garment body side 21 is set wider than the layout interval on the front garment body side 20 across the groin area of a user. They are connected in the expanded state between a back sheet 14 and a pair of the right and left side top sheets 11 along the opening sections around legs. The layout interval is preferably set to about 0-20 mm on the front garment body side 20 and about 20-50 mm on the rear garment body side 21. The waist expansion elastic members 6 of waist gathers 5 are connected in the expanded state between the back sheet 14, side top sheets 11, and center top sheet 12. A leak is prevented, and the fitting property can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a worn article such as a diaper, incontinence pants, training pants and the like, and more particularly to a worn article capable of forming a girth around the wearer's leg around the leg opening with less pressure. About.

[0002]

2. Description of the Related Art A conventional wear-on-use article has an absorbent body interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and has stretchable elastic members near both longitudinal edges of the absorbent body. The arrangement forms a gather around the leg, which serves to hold the article to be worn and to prevent excretion from leaking from around the leg. For this reason, with respect to the gather around the leg, many methods have been devised such as a method of disposing an elastic member.
257, JP-A-4-317649, and JP-A-4-317650.

Normally, the elastic material around the legs is formed of a plurality of mutually parallel linear members in a strip shape, and a longitudinally opposite side of an absorber provided between a continuous backsheet and a continuous topsheet. It is disposed so as to meander in an S-shape near the edge, and is determined in advance by the direction of the supply device of the elastic material around the leg held by the traverser.

[0004] As described above, in the conventional wearing article, the mutual arrangement interval of a plurality of linear members constituting the gather around the leg is not constant over the entire length thereof. When the area is dispersed and narrowed, the compression area tends to concentrate. In addition, the degree of pressure exerted on the body by the movement of the wearer changes in the region from the wearer's leg to the buttocks and the abdomen. Therefore, if the mutual arrangement interval of the linear materials is not appropriate, the compressing force is too strong to give discomfort to the wearer, or the compressing force is too weak to deteriorate the fit and may cause leakage. is there.

[0005]

SUMMARY OF THE INVENTION According to the present invention, an appropriate compression area is provided in an opening around a leg to enhance the fit of the opening around the leg to prevent leakage and to provide a user-friendly feel. To provide a worn article.

[0006]

SUMMARY OF THE INVENTION The present invention provides a liquid-permeable topsheet and a liquid-impermeable backsheet, an absorber provided between the topsheet and the backsheet, and a longitudinal direction of the absorber. In a worn article having a leg-around gather including a stretch-elastic member formed near both side edges, the stretch-elastic member forming the leg-around gather is formed of a plurality of linear materials, The stretchable elastic members are arranged so that the mutual arrangement interval on the back body side with respect to the crotch region of the wearer is wider than the mutual arrangement interval on the front body side. Related to wearing articles.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The article to be worn after use according to the present invention is characterized in that a plurality of linear members forming a gather around the leg are formed along the opening around the leg around the back body of the wearer at the crotch region of the wearer. Are arranged so that the arrangement interval between them is wider than the mutual arrangement interval of the front bodies. From this, the front body side of the opening around the leg has a narrow arrangement interval between the linear materials, so that the fit around the gather around the leg is improved, and the wearer can lift the thigh and bend the upper body. In addition, since the movement of the front surface around the leg is not hindered, there is an effect of preventing leakage from the crotch caused by a gap generated in the crotch due to the movement.

Further, since the rear body side has a large interval between the linear members, the compression area is dispersed, and the elastic member is formed to wrap around the crotch from the buttocks. It can be fitted over a wide area with force. Thereby, it is possible to prevent slippage during wearing.

Further, in the plurality of linear members forming the gather around the leg, a position farthest from the absorber (outermost).
The arrangement interval between the linear material arranged at the front side and the linear material arranged at the position closest to the absorber (innermost) is 0 to 20 mm on the front side (in the case of 0 mm, In a state where they are in contact with each other), preferably 5 to 15 mm, and 20 to 50 mm, preferably 25 to 45 mm on the back body side, in order to obtain the above effects. Here, if the mutual arrangement interval of the front body side is wider than 20 mm, the wearer may feel uncomfortable because the movement of the front around the leg is obstructed, or sufficient fit may be obtained because of insufficient compression force. Can cause leaks from the inseam.

On the other hand, if the distance between the rear body sides is less than 20 mm, the pressure applied to the circumference of the legs is too high, which may cause rubber scars and cause rash, and furthermore, the buttock and thighs of the human body. Since there is little constriction at the boundary and the fat is thicker over the buttocks, there is a possibility that the gathering around the buttocks may not be able to wrap around the buttocks due to the concentration of the compression force, causing the gather around the legs to shift upward. If the interval is wider than 50 mm, a gap may be formed due to excessive dispersal of the compression area and a lack of fit, and leakage from the crotch may occur.

The mutual arrangement interval of the plurality of linear members forming the gathers around the legs is sufficiently small for the front body side and wide on the rear body side of the crotch region. It is possible to obtain the most effective effect, although the linear material in each part of the front body or the back body may be arranged at regular intervals or at irregular intervals. For this purpose, it is preferable that the arrangement is made so as to gradually increase from the abdomen to the back.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings, but the present invention is not limited to these embodiments. FIG. 1 shows the appearance of an embodiment in which the wearing article of the present invention is applied to a pants-type diaper, and FIG. 2 shows a plan view of the developed article.

That is, the pants-type diaper 1 according to the present embodiment has a waist opening 2 corresponding to the waist and a pair of leg openings 3 corresponding to the thighs of both legs.
And a liquid-impermeable back sheet 4 forming these openings 2 and 3 together with a liquid-permeable top sheet to be described later, and a waist elasticity for narrowing the waist opening 2 to form a waist gather 5. A member 6, a leg elastic member 8 for narrowing the leg opening 3 to form the leg gather 7, and an absorber extending from the crotch portion between the leg opening 3 to the abdomen and the back, respectively. 9 is provided. Further, the back sheet 4 is joined so that it can be deployed as shown in FIG.

That is, the joining flap portions 10 on the front and back of the back sheet 4 are overlapped from the developed upper body shown in FIG. 2, and these contact portions are joined by hot melt bonding, pressure melting bonding, or the like.
Alternatively, the pants-type diaper 1 shown in FIG. 1 can be obtained by joining by an ultrasonic fusion bonding method or the like alone or in an appropriate combination.

The absorber 9 is arranged at the center of the back sheet 4 in the width direction. In addition, the widthwise inner ends of the pair of left and right side top sheets 11 are overlapped with the widthwise opposite ends of the absorber 9, and the widthwise outer ends of these side topsheets 11 are joined to the backsheet 4. I have. The center top sheet 1 superposed on the absorber 9 is provided at the inner end in the width direction of the side top sheet 11.
2 are integrally joined at both ends in the width direction, and the side sheet 11 and the center top sheet 12 constitute the top sheet of the present invention.

Both ends in the width direction of the center top sheet 12 are inner flaps 13 for forming three-dimensional gathers. And center top sheet 1
2 are folded at both ends in the width direction, and the elastic member 1
4 is wound in an extended state, and the tip of the inner flap 13 is tightened along its longitudinal direction so as to be in close contact with the wearer's skin.

The leg elastic member 8 for forming the leg gather 7 is formed of a plurality of linear members.
These are aligned with the backsheet 4 along the leg opening 3 so that the mutual arrangement interval of the back body side 21 at the border of the wearer's crotch region is wider than the mutual arrangement interval of the front body side 20. It is joined between the pair of left and right side top sheets 11 in an extended state.

Here, a plurality of leg elastic members 8 around the legs are provided.
Are 0 to 20 mm on the front body side 20 (in the case of 0 mm, they are bundled and in contact with each other),
In this embodiment, it is desirable to set the position farthest from the four absorbers (outermost) of four thread rubbers having a diameter of 0.4 mm and the position closest to the absorber 9 (innermost). ) Is 5 mm at the longitudinal end of the diaper on the front body side 20 of the leg opening 3 and is gradually widened so that the longitudinal end of the diaper at the rear body side 21 is 40 mm. By doing so, leakage prevention is ensured and a good fit is maintained.

Similarly, the elastic member 6 around the waist for forming the waist gather 5 also includes the back sheet 4 and the side top sheet 11 along the waist opening 2.
And the center top sheet 12 in an extended state.

Here, as the back sheet 4, a liquid impermeable polyethylene sheet or the like can be used. More preferably, in order to prevent stuffiness, 20 to 40 having a large number of micropores that are not permeable to liquid molecules
μm-thick polyethylene sheet, or a liquid-impermeable sheet with moisture permeability that has been stretched by adding a filler to a thermoplastic resin, or a composite sheet in which a nonwoven fabric is attached to the outside of these sheets. Excess water can be released to the outside of the diaper, making it less likely to cause stuffiness and rash, and is comfortable in terms of moisture permeability and feel.

The absorber 9 is preferably made of fluff pulp and a high-absorbency polymer in combination. In addition, a single absorbent paper, or a mixture or a laminate of heat-fused fibers is used. In addition, it is preferable to mix or laminate the superabsorbent polymer between the upper and lower fluff pulp in a layered form, and to form a laminated structure in which the whole is wrapped in tissue,
The shape of the absorber 9 may be an hourglass type or a rectangular shape, but the hourglass type provides better fit.

As the side top sheet 11, a non-woven fabric of synthetic fiber made of polyethylene, polypropylene, polyester, or other thermoplastic resin is used. The side top sheet 11 is desirably water-repellent. A liquid non-permeable material may be formed by laminating a film made of a thermoplastic resin on a nonwoven fabric.

As the center top sheet 12, a liquid permeable non-woven fabric sheet made of polyethylene, polypropylene, polyester, or another thermoplastic resin is used as an inner flap 13 which forms a three-dimensional gather. It is more preferable that only the both end portions of the center top sheet 12 be processed to have water repellency.

Further, a plurality of linear members or three-dimensional gathers constituting a waist elastic member 6 provided along the waist opening 2 and a leg elastic member 8 provided along the leg opening 3. As the stretchable elastic member 14 for forming the sheet, urethane thread or urethane tape, thread rubber, raw rubber, or the like can be used as it is, and these can be spirally sprayed onto predetermined positions of the back sheet 4 and the center top sheet 12. And a hot-melt adhesive intermittently applied by a curtain coat.

Accordingly, the plurality of linear members constituting the leg-surrounding elastic member 8 are arranged such that the rear body side 21 is spaced from the front body side 20 by the front body side 20 at the border of the crotch region of the wearer. By arranging it so as to be wider than that, it is possible to provide an appropriate compression area in the leg circumference opening 8, and a region of a predetermined area along the circumference of the leg is brought into close contact with the wearer's leg around moderately. Leakage from the surroundings can be minimized, and good fit can be maintained.

In the above-described embodiment, the pants-type diaper has been described. However, the present invention can be applied to an unfolded diaper.

FIG. 3 shows the appearance of another embodiment according to the present invention, and FIG. 4 shows a plan view thereof. Members having the same functions as those of the previous embodiment are denoted by the same reference numerals. And its explanation is omitted. That is, the deployable diaper 15 in this embodiment includes a center top sheet 12 that forms a liquid-permeable top sheet, side top sheets 11 that are joined to both left and right ends of the center top sheet 12 in the width direction, and these center top sheets. A liquid-impermeable back sheet 4 superposed on the sheet 12 and the side top sheet 11; an absorber 9 provided between the back sheet 4 and the center top sheet 12; A pair of recessed portions 16 formed on both sides in the width direction of the side top sheet 11 and the back sheet 4 to form the leg opening 3 when worn, and a center at one longitudinal end of the absorber 9. The top sheet 12 and the side top sheet 11 are sandwiched between the back sheet 4 and the leg opening 3 when worn.
And a leg-surrounding elastic member 8 for forming a leg-surround gather 7.

In this case, the waist-surrounding elastic member 6
Is formed only at one end in the longitudinal direction of the absorber 9, and
A plurality (four in the illustrated example) of the leg surrounding elastic member 8
Are arranged in such a manner that the mutual arrangement interval on the back body side with respect to the crotch region of the wearer is wider than the mutual arrangement interval on the front body side, and formed in an arc shape along the recessed portion 16. It is arranged. Furthermore, side flap portions 17 extending outward in the width direction of the absorber 9 are formed in the side top sheet 11 and the back sheet 14 located at both ends in the longitudinal direction of the absorber 9, and the side flap portions 17 at one end side are formed. On both sides in the width direction, a pair of left and right adhesive tapes 18 is attached together with a base tape 19 to overlap and connect the side flap portions on the other end side.

[0029]

As described above, in the worn article according to the present invention, the distance between the rear body and the front body with respect to the crotch region of the wearer is larger than the distance between the front body with the elastic body around the leg. Also, since it is formed of a plurality of linear materials arranged so as to be wider, an appropriate compression area can be provided in the opening around the leg, and a region of a predetermined area along the circumference of the leg is around the leg of the wearer. Good adhesion can be achieved, leakage from around the legs can be minimized, and good fit can be maintained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of an embodiment in which a worn article according to the present invention is applied to a pants-type diaper.

FIG. 2 is a plan view of the pants-type diaper shown in FIG.

FIG. 3 is a perspective view showing the appearance of an embodiment in which the wearable article according to the present invention is applied to a deployable diaper.

FIG. 4 is a plan view showing a state in which the unfolded diaper shown in FIG. 3 is unfolded.

[Explanation of symbols]

 1: Pants diaper 2: Waist opening 3: Leg opening 4: Back seat 5: Waist gather 6: Waist elastic elastic member 7: Leg elastic 8: Leg elastic elastic member 9: Absorber 10: Joint flap portion 11: Side top sheet 12: Center top sheet 13: Inner flap 14: Elastic elastic member 15: Expandable diaper 16: Gouge portion 17: Side flap portion 18: Adhesive tape 19: Base tape 20: Front body side 21: Back body side

Claims (1)

[Claims] 1. A liquid-permeable topsheet and a liquid-impermeable backsheet, an absorber provided between the topsheet and the backsheet, and formed near both longitudinal edges of the absorber. In a worn article having a leg gather including an elastic member, the elastic member forming the leg gather is formed of a plurality of linear materials, and the elastic member is worn. A wearable article worn on both sides, wherein the mutual arrangement interval on the back body side with respect to the crotch region of the user is wider than the mutual arrangement interval on the front body side.