JPH11276523A - Pants-type disposable wearing article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the fitting feeling and absorptive power for easily putting on and off an article having a comfortable attaching feeling like an under wear by forming an outer cover member by including at least elastic non-woven fabrics and by giving elasticity in the vertical/horizontal directions at least to a part corresponding to a waist measurement of a wearing person. SOLUTION: Side edges, where a front part 4 and a back part 5 of an outer cover member 7 are opposing, are bonded closing at a side section 6. An open section 2 of a waist measurement and an open section 3 of a girth are formed, and elastic members 12, 16 are disposed along the respective open sections 2, 3. It is preferable from a point of leak-proof and improvement of fitting feeling that proportion of an area of a part formed only from an external layer sheet 9 and corresponding to the girth, which occupies an area of the outer cover member 7, is 40 to 70%. Then, elasticity in the vertical/horizontal directions is given to the girth section. Thereby, leakage can be prevented and fitting feeling can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pants-type wear-on-wear article, and more particularly, to a pants-type article such as a mild incontinence pants, a menstrual pants, and a training pants for infants used as an alternative to underwear. The present invention relates to a pants-type disposable wearing article.

[0002]

2. Description of the Related Art Conventionally, underwear and an absorbent pad have been frequently used as articles corresponding to mild incontinence and menstruation.
In addition, as an integrated use of underwear and an absorbent pad, it has been proposed that the underwear and the absorbent pad be integrally combined.
Gazette, Japanese Utility Model Laid-Open No. 1-68029, and Japanese Utility Model Laid-Open No. 1-82
No. 021, Japanese Utility Model Application Laid-Open No. 7-3621, Japanese Utility Model Application Laid-Open No.
No. 3623 is known.
In these inventions, a woven fabric is used as a material of the exterior part and also has an absorption part. However, since the raw material is expensive, the unit price of the product is also high. For this reason, there are some that can be washed and reused in general, but there is a problem that it takes time to dry due to the number of layers of the absorption part and multiple sheets must be purchased. doing.

[0003] Further, there are many proposals using a nonwoven fabric as the material of the exterior part, and these are very useful for simplifying the manufacturing process and reducing the material cost. However, nonwoven fabrics are generally inferior in stretchability, and therefore, are inferior in ease of attachment and detachment and fit to the same degree as woven fabrics. In addition, since the elasticity is low, the application size of the wearer is also narrow. Furthermore, even when a nonwoven fabric with elasticity is used, since the wearing time is longer than that of a general diaper, the material is stretched due to the deformation and shape loss accompanying the wearer's movement, and the feeling of wearing is poor. Tend to be.

On the other hand, in recent years, pants-type diapers have been used.
A variety of developments are underway with the increasing demand,
Openings around both legs, openings around the waist, and both sides around the waist, which have been given a stretch elasticity in order to enhance the diaper followability and fit to the wearer, have become mainstream. Japanese Unexamined Patent Publication No. Hei 3-16920,
Pants-type disposable diapers as disclosed in JP-A-28363, JP-A-2-4364, JP-A-4-166150, and JP-A-4-289201 have been proposed. Currently, many of these are produced as diapers for adults and infants, but those who are in normal daily life, such as adults with mild incontinence and menstruating women, should not wear it. There is a tendency that these diapers are excessive in terms of substituting underwear, and there is no suitable diaper in terms of thickness and size.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the conventional pants-type single-use wearable article, has a feeling of wearing close to underwear, is easy to attach and detach, and has a proper fit to the human body. It is another object of the present invention to provide a pants-type wearable article having excellent absorption power.

[0006]

(1) The present invention relates to an absorbent body comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between these two sheets. The absorbent body is arranged and joined at least in part, and comprises an exterior member that holds the absorbent body against a wearer when worn, and opposing side edges of a front body and a rear body of the exterior member. A pants-type wear-on-wear article that is joined to form a waist opening and a pair of leg openings, and a stretchable elastic member is arranged along the waist opening and the leg opening. The exterior member includes at least a stretchable nonwoven fabric, and at least a portion corresponding to the waist circumference of the wearer has stretchability in the vertical and horizontal directions.

(2) The present invention is characterized in that the exterior member is formed of an outer layer sheet made of a stretchable nonwoven fabric and an inner layer sheet made of a nonwoven fabric laminated on the outer layer sheet. The present invention relates to a pants-type single-use wear article according to 1).

(3) Further, according to the present invention, the exterior member includes:
The part corresponding to the waist circumference consists only of the outer layer sheet made of the elastic nonwoven fabric, and there is no absorbent body in this part, and the inner layer sheet is arranged only in the part where the absorbent body is arranged. (1) characterized in that
Or, it relates to a pants-type single-use wear article according to (2).

(4) According to the present invention, the ratio of the area corresponding to the waist circumference to the area of the exterior member is 4%.
The present invention relates to the pants-type single-use wear article according to (3), wherein the wear rate is 0 to 70%.

(5) Further, in the present invention, the stretchable nonwoven fabric of the exterior member is formed with scattered openings. The present invention relates to a pants-type wearable article.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An underpants type wear-on-wear article of the present invention has an absorbent body for absorbing excrement and an outer body which is joined to the absorbent body and holds the absorbent body against a wearer when worn. The exterior member is formed of at least a stretchable nonwoven fabric, and at least a portion corresponding to the waist circumference of the wearer has stretchability. Since the wearing article of the present invention having such a configuration is provided with appropriate elasticity around the waist, the wearer can easily put on and take off the wearable article, and has a good fit to the abdomen and the waist even during wearing. Can be obtained.

Further, in the pants-type wear-on-wear article of the present invention, the exterior member is formed by an outer layer sheet made of a stretchable nonwoven fabric and an inner layer sheet made of a nonwoven fabric laminated on the outer layer sheet, It is preferable that the portion corresponding to is composed of only the outer layer sheet, and further has no absorbent main body in this portion, and the inner layer sheet be disposed only in the portion where the absorbent main body is disposed.

[0013] With this configuration, in addition to the above-described effects, since the absorbent body does not exist in the waist portion, the entire wearing article can be formed thin, and a more comfortable underwear-like wearing feeling can be obtained. Can be obtained, and the wearing of the article can be made inconspicuous even when clothes are worn thereon. Furthermore, in the crotch portion where the absorbent body is arranged, the absorbent body is not directly affected by elasticity due to the inner layer sheet arranged under the absorbent body, so that the leg may be opened and closed by movement such as opening and closing. The absorbent main body does not buckle or lose its shape, the fit of the absorbent main body to the wearer is improved, and the effect of preventing leakage at the crotch portion can be improved.

Further, in the wearing article having such a configuration, it is preferable that a ratio of an area of a portion corresponding to a waist around only the outer layer sheet to an area of the exterior member is 40 to 70%. When the proportion of the area of the area corresponding to the waist circumference is within this range, it is possible to obtain a wearing article having an excellent fit to a wearer, having no leak from a crotch portion, and having a feeling of wearing like a good underwear. Can be.

Further, the wearing article of the present invention is formed by scattered openings on the surface of the outer layer sheet, so that the texture of the material becomes like a woven cloth, and the appearance of the wearing article becomes closer to underwear. be able to.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an underpants type wearable article according to the present invention, but the present invention is not limited thereto. FIG. 1 is a perspective view of a pants-type single-use wear article of the present invention. In FIG. 1, the pants-type garment worn article 1 has a front body 4 and a back body 5 with their opposing side edges bonded and closed by a side seam portion 6, and a waist opening 2 and a leg opening 3 are formed. A stretchable elastic member is arranged along each opening. In addition, the adhesive closure of the side seam portion 6 is such that the front body 4 and the back body 5 are overlapped, and both sides are protruded outside, or both sides are protruded inside, or one side edge is outside and the other is outside. With the side edges protruding inward, hot melt adhesive, pressure melting, ultrasonic melting or the like can be joined alone or in combination along the outermost sides of both sides.

FIG. 2 is a perspective view showing an extended state in which the side seam portion 6 of the underpants-type single-use wearing article 1 shown in FIG. In FIG. 2, the pants-type wear-on-the-wear article 1 is formed of an exterior member 7 and an absorbent main body 11 arranged on the exterior member 7, and the exterior member 7 having the side seam 6 opened. The side edges are respectively shown as side flaps 8. In this case, the exterior member 7
Is an outer layer sheet 9 and an inner layer sheet 1 laminated thereon.
0, but the portion corresponding to the waist around the exterior member 7 when viewed from front to back consists of only the outer layer sheet 9, the inner layer sheet 10 is disposed only at the crotch portion, and the absorbent body 11 is It does not exist in the portion corresponding to the waist circumference of the member 7, but is arranged on the inner layer sheet 10 in the crotch portion.

Further, in the wearing article having such a configuration, it is preferable that the ratio of the area corresponding to the waist around only the outer layer sheet to the area of the exterior member is 40 to 70%. When the proportion of the area of the area corresponding to the waist circumference is within this range, it is possible to obtain a wearing article having an excellent fit to a wearer, having no leak from a crotch portion, and having a feeling of wearing like a good underwear. Can be. If the proportion of the area corresponding to the waist circumference is less than 40%, the fit to the wearer will be poor, while if the proportion of the area corresponding to the waist circumference exceeds 70%, it will increase. ,
The proportion of the crotch portion in which the absorbent body is disposed is reduced, and when the amount of excrement is large, leakage from the crotch portion may increase.

The opening 2 around the waist of the exterior member 7
, Both longitudinal edges of the outer layer sheet 9 are folded back inside the wearing article, and a waist-stretchable elastic member 12 is arranged inside the folded portion (see FIG. 3). The leg opening elastic member 16 is arranged in the surrounding opening 3 between the inner layer sheet 10 and the outer layer sheet 9. Although FIG. 2 shows an example in which the dimensions of the outer layer sheet 9 and the inner layer sheet 10 forming the outer layer member 7 are different, the dimensions of both sheets may be the same, or the outer layer sheet 9 may have only the outer layer sheet 9 alone. 7 may be formed. Also,
The absorbent main body 11 may be of a size that is arranged not only in the crotch portion but also in a portion corresponding to the waist circumference.

FIG. 3 is a cross-sectional view showing a state in which the underpants type wear-on article shown in FIG. 2 is cut along the line AA '. In FIG. 3, the pants-type wear-on-wear article is formed of an exterior member 7 and an absorbent body 11 disposed on the exterior member 7, and the absorbent body 11 is a liquid-permeable topsheet. 15 and a liquid-impermeable backsheet 14
The exterior member 7 is formed of an outer layer sheet 9 made of a stretchable nonwoven fabric and an inner layer sheet 10 laminated on the outer layer sheet 9. Absorbent body 11 is arranged on sheet 10. Further, an edge of the outer layer sheet 9 extending from the absorbent main body 11 is folded back inside the wearing article, and a waist-stretchable elastic member 12 is arranged inside the folded portion.

FIG. 4 is a cross-sectional view showing a state in which the underpants type wearable article shown in FIG. 2 is cut along the line BB '. In FIG. 4, the pants-type wear-on-wear article is formed of an exterior member 7 and an absorbent main body 11 disposed on the exterior member 7, and outer layer sheets 9 on both side edges of the exterior member 7.
Between the inner layer sheet 10 and the inner layer sheet 10, a leg-surrounding elastic member 16 is arranged. In addition, the absorbent body 11 is
4, a side sheet 17 disposed from both side edges of the absorber 13 to side edges of the back sheet 14, and a top sheet 15 disposed on the absorber 13. Yes, and top sheet 1
Stretchable elastic members are arranged on both side edges of 5 to form a three-dimensional gather 18.

As the liquid-permeable top sheet used in the pants-type wearable wearing article of the present invention, a liquid-permeable nonwoven fabric made of synthetic fibers made of polyethylene, polypropylene, polyester, or other thermoplastic resin is used. As the back sheet, a liquid-impermeable polyethylene sheet, preferably a polyethylene sheet provided with micropores, or a liquid-impermeable sheet having moisture permeability such as a sheet obtained by adding a filler to a thermoplastic resin and used is used. When such a sheet is used, moisture permeability is imparted, and there is no fear of stuffiness, and the sheet is more comfortable.

The side sheet is selected from the group including polyester fibers such as polyethylene terephthalate fibers, polyolefin fibers, polyamide fibers such as nylon fibers, cellulose fibers such as cotton fibers, pulp fibers, and mixtures thereof. It is preferable to use a non-woven fabric made of fibers made of the above-mentioned material, and particularly to be hydrophobic in order to prevent the outflow of moisture in the absorber.

Further, three-dimensional gathers include a top sheet,
All materials used for forming three-dimensional gathers of ordinary sanitary articles such as side sheets can be used.

The outer layer sheet of the exterior member may be made of an elastomer nonwoven web alone, or a polyester fiber such as polyethylene terephthalate fiber, a polyamide fiber such as polyolefin fiber or nylon fiber, or a cotton fiber such as cotton fiber on at least one side of the elastomer nonwoven web. A stretchable nonwoven fabric obtained by hydroentangling or laminating a fiber layer made of a material selected from the group including various cellulose fibers, pulp fibers and mixtures thereof is used. In addition, it is preferable that the outer layer sheet is formed such that the openings due to the water flow are scattered on the entire surface or a part thereof.
Here, the elongation at break of the material of the outer layer sheet is 100% or more in the width direction of the wearing article and 50 to 250% in the longitudinal direction, more preferably 120% or more in the width direction and 100 to 200% in the longitudinal direction. It is. This means that the elongation in the width direction is 1
If the elongation in the longitudinal direction is less than 00% or less than 50%, appropriate elasticity cannot be obtained, and the material may be broken at the time of attachment / detachment. Excessive elongation may occur when being pulled up when worn, which may make it difficult to wear. The elongation at break is 50 m
m strip material at the same speed (200 mm / m here)
in) indicates the amount of elongation when the material breaks when pulled, and is, for example, 100% when stretched twice.

Examples of the non-stretchable inner layer sheet disposed on the outer layer sheet include polyester fiber such as polyethylene terephthalate fiber, polyamide fiber such as polyolefin fiber and nylon fiber, cellulose fiber such as cotton fiber, and pulp. A non-woven fabric of fibers made from a material selected from the group comprising fibers and mixtures thereof is used.

The elastic elastic members disposed in the waist opening and the leg opening are the same as those used in ordinary disposable diapers such as urethane thread, thread rubber, urethane film, urethane foam, and the like. It is possible,
These elastic members are disposed in the leg opening and the waist opening in an extended state, respectively, and are adhered and fixed by a hot melt adhesive.

[0028] Absorbents are mainly composed of fluff pulp and a combination of a highly absorbent polymer and other absorbent papers.
An absorbent used for ordinary sanitary ware formed using heat-fusion fibers or the like can be used as it is.

[0029]

As described above, according to the pants-type wear-on-wear article of the present invention, the exterior member for holding the absorbent main body against the wearer has a stretchable portion corresponding to the waist circumference of the wearer. As a result, the waist has appropriate elasticity around the waist, the wearer can easily attach and detach the waist, and can obtain an appropriate fit on the abdomen and the waist even during wearing.

Further, the exterior member is formed by an outer layer sheet made of a stretchable nonwoven fabric and an inner layer sheet made of a nonwoven fabric laminated on the outer layer sheet, and a portion corresponding to the circumference of the waist comprises only the outer layer sheet, Furthermore, the absorbent body does not exist in this part, and the inner layer sheet is configured to be arranged only in the part where the absorbent body is arranged,
In addition to the above effects, the absence of the absorbent main body in the waist area allows the entire worn article to be formed thinly, and provides a better underwear-like feeling of wearing, and when clothing is worn thereon. Also, the mounting of the article can be made inconspicuous. In the crotch part where the absorbent body is further arranged,
Since the absorbent main body is not directly affected by the elasticity by the inner layer sheet arranged under the absorbent main body, the absorbent main body does not twist or lose its shape due to movement of opening and closing of the legs, The fit of the absorbent body to the wearer is improved, and the effect of preventing leakage at the crotch portion can be improved.

[0031]

[Brief description of the drawings]

FIG. 1 is a perspective view of a pants-type single-use article of the present invention.

FIG. 2 is a perspective view showing an extended state in which a side seam portion of the underpants type wear-on-wear article shown in FIG. 1 is opened and deployed.

FIG. 3 is a perspective view of the underpants-type wearing article shown in FIG.
Sectional drawing which shows the state cut | disconnected along A '.

FIG. 4 is a perspective view of the underpants-type worn article shown in FIG.
Sectional drawing which shows the state cut | disconnected along B '.

[Explanation of symbols]

 1: Pants-type worn item for wearing 2: Opening around waist 3: Opening around leg 4: Front body 5: Back body 6: Side seam section 7: Exterior member 8: Side flap 9: Outer layer sheet 10: Inner layer sheet 11: Absorbent body 12: Elastic elastic member around waist 13: Absorber 14: Back sheet 15: Top sheet 16: Elastic elastic member around leg 17: Side sheet 18: Three-dimensional gather

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI D04H 1/72 A61F 13/16 360

Claims (5)

[Claims] 1. An absorbent body comprising a liquid-permeable top sheet, a liquid-impermeable back sheet, an absorber disposed between these two sheets, and at least one absorbent body provided with the absorbent body. And an exterior member that holds the absorbent body against the wearer when worn, and joins opposite side edges of the front body and the back body of the exterior member to form a waist opening and a pair of legs. A pants-type wear-on-wear article in which a peripheral opening is formed, and an elastic member is arranged along the waist opening and the leg opening, wherein the exterior member includes at least an elastic nonwoven fabric. A pants-type wear-on-wear article, wherein at least a portion corresponding to the waist circumference of the wearer has elasticity in the vertical and horizontal directions. 2. The underpants type use according to claim 1, wherein the exterior member is formed of an outer layer sheet made of a stretchable nonwoven fabric and an inner layer sheet made of a nonwoven fabric laminated on the outer layer sheet. Slip-on article. 3. The exterior member has a portion corresponding to the waist around only an outer layer sheet made of the elastic nonwoven fabric,
3. The pants-type single-use wear according to claim 1 or 2, wherein the absorbent body does not exist in this portion, and the inner layer sheet is disposed only in the portion where the absorbent main body is disposed. Goods. 4. The article according to claim 3, wherein the ratio of the area of the portion corresponding to the waist circumference to the area of the exterior member is 40 to 70%. 5. The pants-type single-use article according to claim 1, wherein the stretchable nonwoven fabric of the exterior member is formed with scattered openings.