JPH09290003A - Disposable diaper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide good maneuverability as well as a wearable condition without any need of folding a waist belt at the time of use, prevent the waist belt from coming in contact with a user's belly and back, and improve gas permeability as well as a feeling of wear. SOLUTION: A diaper body 1 is formed out of a gas and liquid permeable surface sheet 2, a gas permeable but liquid impermeable rear surface lining sheet 3 and a liquid absorption body sealed between the sheets 2 and 3. Also, waist belts 15 having an elastic body are extended from both sides of the surface sheet 2 along a lengthwise direction, and both ends of each waist belt 15 is secured to both ends of the body 1. In addition, an elastic leg gather part 8 is formed around both leg opening parts 5 formed on the body 1 in a breadthwise direction. Also, both ends of the waist belts 15 are connected slantwise to both lengthwise ends of the body 1 along a direction from the center thereof toward both leg opening parts 5. Both leg opening parts 5 are formed by cutting out both sides of the connected area of the waist belts 15 at both ends.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to infants, adults,
Alternatively, it relates to a pants-type disposable diaper for incontinence.

[0002]

2. Description of the Related Art As a conventional disposable diaper, for example,
As described in JP-A-4-109943, both side edges of the abdominal region and the dorsal region are joined to each other by waist belts to form leg openings on the left and right and a waist opening on the upper part. Pants-shaped disposable diapers each formed are known.

This disposable diaper constitutes a main body of a diaper in which a liquid absorbent is enclosed between a liquid-permeable top sheet and a liquid-impermeable back sheet, and elastic portions are provided at both leg portions in the width direction of the main body. A leg gather having a body is formed, and elastic waist belts are arranged along the longitudinal direction on both sides of the liquid impermeable back sheet of the diaper body, and both ends of the waist belt are opposite edges of the diaper body. The structure is fixed to each.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the pants-type diaper body described in Japanese Patent Publication No. 943, leg parts on both sides are notched only at the middle part to form leg openings, so that the waist is widely covered and the leg openings are tightened at the thigh base. Although it has a shape and has a function to prevent leakage of excrement, the leg opening is narrow and the part that covers the body is large, so the target adaptive size range is narrow and it is easy to obstruct movement when worn. Also, since there are many parts that cover the body, it is difficult to attach and detach, and there are also many materials used, which causes a problem of high material cost.

Further, in this disposable diaper, since the waist belts are arranged on both sides of the liquid-impermeable back sheet, the waist belt does not touch the abdominal region and the dorsal region of the skin, and the liquid-impermeable back surface is not touched. The liquid-permeable surface sheet, which feels nicer to the touch than the sheet, feels comfortable to wear, but the waist belt must be folded back before use, and if you don't fold the waist belt when wearing it, it will be impermeable to the skin side. Since the liquid back sheet is located, there is a problem that excreted liquid is not absorbed.

Further, in the above disposable diaper, since the inner edges of the waist belts facing each other along the longitudinal direction of the waist belts are close to each other, the elastic force of the waist belts acts on the entire waist and a feeling of pressure is generated in the abdomen. Along with this, there is a problem in that the diaper body is wrinkled due to the elastic force of the waist belt at the portions that come into contact with the abdomen and the back, and the wearing feeling is poor.

Further, in the above disposable diaper, the liquid-impermeable sheet of the back sheet of the diaper body is present on the entire back surface,
The parts corresponding to the ventral region and the dorsal region of the skin are also not breathable, and there is a problem of getting stuffy when wearing a diaper.

Further, in the case of a so-called front body which is not symmetrical to the front and rear, when the abdominal side and the back side are mounted opposite to each other, the mobility is inferior, and there is a problem that it is necessary to confirm the front and back when mounting. Was there. Therefore, the front side of the diaper body must be provided with the identification mark such as a label, a tape, a printing or a colored sewing thread, which causes a problem of cost increase.

The present invention has been made in view of the above problems, and by widening the leg openings, the range of applicable sizes can be widened, and the maneuverability is excellent, the attachment / detachment is easy, and the material cost can be obtained at a low cost. It provides a disposable diaper.

Further, the waist belt does not have to be folded back at the time of wearing, it can be worn as it is, the wearability is good, the waist belt does not touch the abdominal region and the dorsal region of the skin, and the wearing sensation is good and the disposable diaper is worn. It is provided.

Further, a disposable diaper which does not cause a feeling of pressure in the abdomen and has breathability in the parts corresponding to the abdominal region and the dorsal region of the skin and which does not get damp when the diaper is worn is provided. It is a thing.

[0012] Further, the present invention provides a diaper body which is not symmetrical with respect to the front and rear, and which can inexpensively display a marker for easily confirming the front and rear when the diaper is worn.

[0013]

A disposable diaper according to claim 1 is a liquid permeable top sheet, a liquid impermeable back sheet, and a space between the liquid permeable top sheet and the liquid impermeable back sheet. A diaper body having elastic leg gathers formed on both side leg parts in the width direction, and a liquid permeable surface sheet of the diaper body on both sides in the longitudinal direction. A waist belt having elastic bodies arranged along the ends of the diaper body, the width of the diaper body being located at both ends in the longitudinal direction of the diaper body. From the center side in the direction, connect in an inclined shape toward both legs,
The both side leg portions of the diaper body are formed by cutting out both side portions between the waist belt connecting portions at both ends of the diaper body.

Since the both leg parts of the diaper body are formed by cutting out both side portions between the joint portions of the waist belt at both ends of the diaper body, the leg opening becomes large and the range of applicable sizes is wide. Therefore, it is possible to improve the motility when wearing.

The disposable diaper according to a second aspect of the present invention is the disposable diaper according to the first aspect, wherein both sides of both ends of the diaper body are inclined at both ends of both side waist belts arranged on both sides of the diaper body. It is an inclined edge along the joint.

The diaper body has a substantially hexagonal or octagonal shape, and can be easily worn as it is by opening the waist belt from side to side.

According to a third aspect of the present invention, there is provided the disposable diaper according to the first or second aspect, wherein the waist belts on both sides of the liquid-permeable surface sheet of the diaper body are arranged in the width direction of the body. The length is one-half or less of the length, and a gap is formed between the waist belts on both sides.

The elastic force of the waist belt does not act directly on the abdomen and back of the skin so that the abdomen does not feel tight and the waist of the diaper body touches the abdomen and back. The elastic force of the belt does not cause wrinkles, resulting in a comfortable fit.

A fourth aspect of the present invention is the disposable diaper according to any one of the first to third aspects, wherein the liquid-permeable top sheet and the liquid-impermeable back sheet each have air permeability, The liquid absorber enclosed between the liquid-permeable topsheet and the liquid-impermeable backsheet is formed to have a dimension shorter than the length of the liquid-permeable topsheet and the liquid-impermeable backsheet in the longitudinal direction. The longitudinal ends of the liquid absorber enclosed between the liquid-permeable topsheet and the liquid-impermeable backsheet are separated from the edges of the liquid-permeable topsheet and the liquid-impermeable backsheet. The diaper body is provided with breathable portions at both ends.

The air permeability is maintained in the portions of the diaper body that come into contact with the abdomen and back, so that the skin does not get damp.

[0021] A disposable diaper according to a fifth aspect of the present invention is the disposable diaper according to any one of the first to fourth aspects, in which a liquid impermeable film is provided between the liquid impermeable back sheet and the liquid absorber. It is provided.

The liquid-impervious film surely prevents the excretion liquid leaking around the liquid absorber from leaking.

According to a sixth aspect of the present invention, in the disposable diaper according to any one of the first to fifth aspects, the waist is formed at both ends of the waist belts on both sides of the diaper body. Both ends of the belt are opposed to both ends of the leg gather portion.

Since both ends of the waist belt and both ends of the leg gather portion are opposed to each other, even if the leg opening is widened, a series of elastic forces act on the leg opening and the waist opening, so that both legs are prevented. The circumference is closely attached to the root of the thigh, the leakage of excrement is surely prevented, and the range of the applicable size can be further expanded.

[0025] The disposable diaper according to claim 7 is the disposable diaper according to any one of claims 1 to 6 in which a liquid-impervious bag sheet is provided on both sides of the diaper body on the liquid-permeable surface sheet side. The bag portion is formed by opening the inner edges facing each other.

The excrement does not leak sideways due to the bag portions on both sides of the liquid-permeable topsheet.

According to the eighth aspect of the present invention, there is provided the disposable diaper according to the fourth aspect, wherein the breathable portions formed at both ends of the diaper body are 80 mm to 150 mm apart from both end edges of the diaper body. Within the range, the width dimension on the inner end side is a trapezoidal shape having a width of 160 mm to 250 mm.

The breathable portion of the diaper body which touches the abdomen and back is trapezoidal with a width of 160 mm to 250 mm and a width of 80 mm to 150 mm. It is absorbed and the abdomen and back do not get damp.

The disposable diaper according to claim 9 is the same as the disposable diaper according to any one of claims 1 to 8, wherein the elastic rate of the waist belt is 250%.
% To 600%.

Since the elastic ratio of the elastic body of the waist belt is high, the leg opening and the waist opening can be made large, and even if the body shape is different, the body can be in close contact with the body and the range of the adaptive size can be widened. JIS S size,
It can be used as M and L.

A tenth aspect of the present invention is the disposable diaper according to any one of the first to ninth aspects, in which the waist belt has a length substantially the same as the longitudinal direction of the diaper body. The length in the direction is 20 mm or more and is half the length in the width direction of the diaper body or less.

The waist belt has a wide width, does not curl in the width direction when worn, and does not impair the wearing comfort when worn.

The disposable diaper according to claim 11 is the same as the disposable diaper according to any one of claims 1 to 10, wherein the elastic body of the waist belt has a width of 0.5 mm.
As described above, the width is not more than the width of the waist belt.

Since the width of the elastic body of the waist belt is 0.5 mm or more, the number of elastic bodies can be reduced.

According to a twelfth aspect of the present invention, there is provided the disposable diaper according to any one of the first to eleventh aspects, wherein the diaper body is symmetrical about the center in the longitudinal direction.

Since the diaper body is symmetrical with respect to the longitudinal center, the ventral side and the dorsal side are the same, and it is not necessary to check the front and back at the time of wearing, and the wearability is good.

A thirteenth aspect of the present invention is the disposable diaper according to any one of the first to eleventh aspects, wherein the leg portions of both sides of the diaper body are deeply notched. is there.

The leg openings of the diaper body are not tightly tightened at the thigh base, and the abdomen and back do not feel uncomfortable when the diaper is worn.

According to a fourteenth aspect of the present invention, in the disposable diaper according to the thirteenth aspect, the main body of the diaper has a central portion of one end edge connecting the ends of both end joints connecting both waist belts. A concave arc-shaped portion is formed at the same time and a convex arc-shaped portion is provided at the center of the other edge.

The marking on the front of the diaper can be integrally formed with the diaper body by a consistent manufacturing process when cutting the liquid-permeable top sheet and the liquid-impermeable back sheet of the diaper body, and the It is easy to check, there is no need to attach another member, and it can be manufactured at low cost.

A disposable diaper according to a fifteenth aspect of the present invention is the disposable diaper according to the fourteenth aspect, wherein a concave arc portion is formed in a central portion of a front end edge of the diaper body and a convex arc shape is formed in a central portion of a rear end edge. It is a projecting part.

The concave arcuate portion formed on the abdominal side edge of the diaper body serves as a front marker, and the concave arcuate portion expands to reduce the feeling of tightness in the leg area and improve motility. .

According to a sixteenth aspect of the present invention, in the disposable diaper according to the fourteenth aspect, the width of both end edges connecting between the ends of the both end joints connecting both side waist belts is 20 mm to 50 mm. The width of the concave arcuate portion formed in the central portion of the end edge is 20 mm to 50 mm and the depth is 20 mm to 50 mm, and the width of the convex arcuate portion formed in the central portion of the other edge is 20 mm to 50 mm. At the same time, the protrusion height is 20 mm to 50 mm.

The concave arcuate portion at the center of one end edge and the convex arcuate portion at the center of the other end edge formed on the diaper body can be easily confirmed as a marker display of a size that does not interfere.

[0045]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the disposable diaper of the present invention will be described with reference to FIGS.

1, FIG. 2 and FIG. 3, reference numeral 1 denotes a diaper body, and the diaper body 1 is a liquid-permeable surface such as a woven cloth, a non-woven cloth, a porous film or the like which is a surface which comes into contact with the wearer's skin. The sheet 2, the liquid-impervious backsheet 3 such as a resin film, and the high-polymer water-absorbing polymer which is disposed between the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 and has pulp as a main material. It is configured by laminating a liquid absorber 4 such as a substance.

Then, the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 are joined at their peripheral portions by adhesion or fusion, and the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 are joined together.
The liquid absorber 4 is enclosed between the two.

Further, both ends in the longitudinal direction of the diaper body 1 are formed with linear end edges at the center of the diaper body 1 in the width direction, and the diaper body 1 is symmetrically directed to both sides from both ends. Is formed on the inclined edge 6 inclined at 35 ° to 55 ° to form a substantially octagonal shape.

Further, both sides of the diaper body 1 in the width direction are symmetrically cut from the longitudinal center of the diaper body 1 between the ends of the inclined edges 6 to form narrow portions on both sides of the diaper body 1. The middle part of the edge is formed in the leg part 5.

Then, as shown in FIG. 2, one or more elastic bodies 7 such as rubber are stretched and sewn to the both side leg portions 5 along the outer edges of the both side leg portions 5. The leg gathers 8 having elasticity are formed by attaching the leg gathers 8 by attaching.

Further, as shown in FIG. 2, the diaper body 1 is
The liquid-impervious bag sheet 9 is laminated on both sides of the liquid-permeable top sheet 2 and both ends and outer edges of the liquid-impervious bag sheet 9 are bonded to the liquid-permeable top sheet 2. A bag part that is joined by fusion to prevent side leakage of excrement
10 are formed on the left and right respectively. The bag portion 10 has elastic bodies 11 such as rubber stretched along the inner edges of the left and right liquid-impervious bag sheet 9 which is the opening edge of the bag portion 10 with the inner edges facing each other opened by sewing or the like. The gather portion 8 is formed.

The diaper body 1 is symmetrical about the center in the longitudinal direction and symmetrical about the center in the width direction, and the liquid absorber 4 is also symmetrical about the center in the longitudinal direction. It is formed symmetrically with respect to the center in the width direction, and the central portion in the longitudinal direction is formed in the narrow portion 17 as shown in FIG.

In FIGS. 1 to 4, reference numeral 15 denotes a breathable waist belt, and the waist belts 15 are arranged on both sides of the liquid permeable surface sheet 2 of the diaper body 1 along the longitudinal direction. . The length of the waist belt 15 is substantially the same as the length of the diaper body 1 in the longitudinal direction, and the length in the width direction is 20 mm or more, which is one half or less of the length of the diaper body 1 in the width direction. A gap is formed between the waist belts.

Further, one or a plurality of stretched elastic members 16 such as rubber are attached to the waist belt 15 in the longitudinal direction by sewing or the like. The elastic body 16 has a width of 0.5 mm or more and less than the width of the waist belt 15.

Both ends of the waist belt 15 have approximately 8 inclined edges 6 which are symmetrically inclined from both ends of the both end edges 1a of the diaper body 1 toward both sides.
The diaper body 1 is fastened along the slanted edges 6 of the both ends of the rectangular shape, and the both ends of the diaper body 1 are shaped along the both end joints of the two-sided waist belts 15 arranged on both sides of the diaper body 1. A gap L ₁ is formed between the waist belts 15 on both sides as shown in FIG. At both ends of the waist belt 15, both ends of the waist belt 15 and both ends of the leg gather portion 8 are opposed to each other at both ends of the diaper body 1, and elastic members 16 at both ends of the waist belt 15 are provided.
The elastic body 11 of the leg gather portion 8 is integrally stretchable.

The elastic body 16 of the waist belt 15 has a stretching ratio of 250% to 600%, preferably 500% to 6%.
00%.

Next, the operation of this embodiment will be described.

The diaper body 1 has waist belts 15 disposed on both sides of the liquid-permeable top sheet 2 and has diaper body 1 at both ends.
As shown in FIG. 1, the diaper body 1 is attached to the liquid permeable topsheet 2 as shown in FIG.
Pants that are bent into a substantially U shape with the surface inside and have waist belts 15 at both ends connecting both ends of the diaper body 1 to form leg openings 20 on the left and right and a waist opening 21 on the upper side. In addition, the both ends of the diaper body 1 are shaped like an octagon along the both end joints of the waist belts 15 on both sides, as shown in FIG. it can.

Further, since the diaper body 1 is symmetrical with respect to the longitudinal center, the ventral side and the dorsal side are the same, and it is not necessary to check the front and back at the time of wearing, and the wearability is good. .

Then, both side leg parts 5 of the diaper body 1
Is formed by cutting out both sides of the waist belt 15 between both ends of the diaper body 1, so that the left and right leg openings 20 become large, and the leg openings of the diaper body 1 are enlarged.
20 does not tighten tightly at the base of the thigh, the range of applicable sizes can be widened, and the mobility at the time of wearing can be enhanced.

As shown in FIG. 4, a space L ₁ is formed between the waist belts 15 attached to the body 1 of the diaper, so that the abdomen and back of the skin have liquid-permeable surfaces when worn. The elastic force of the waist belt 15 does not directly act on the abdomen and the back by the seat 2, and a feeling of pressure is generated on the abdomen, and the elastic force of the waist belt 15 is applied to the portion of the diaper body 1 that touches the abdomen and the back. Therefore, wrinkles do not occur and the wearing feeling becomes good.

Further, since both ends of the waist belts 15 on both sides and both ends of the leg gathers 8 face each other, even if the leg openings 20 are widened, the leg openings 20 and the waist openings 20 are not widened.
The elastic body 16 of the waist belt 15 and the elastic body 11 of the leg gather portion 8 act in series on 21 and the leg parts 5 on both sides are closely attached to the thigh root, and particularly, the leg opening of the diaper body 1 Even if the left and right leg openings 20 are enlarged by cutting out both sides between the joints of the waist belt 15 at both ends of the diaper body 1 so that the 20 is not tightly tightened at the base of the thigh, leakage of excretion liquid Is reliably prevented.

Further, since the elastic body 16 of the waist belt 15 is stretched at a rate of 250% to 600%, the waist belt is
Since the elastic body of 15 has a high expansion rate, even if the leg opening 20 and the waist opening 21 are made large, the body fits closely to the body even if the body shape is different, and the range of applicable sizes can be widened. Can be used as clothing size S, M, L.

Since the length of the waist belt 15 is set to be substantially the same as the length of the diaper body 1 in the longitudinal direction, and the length in the width direction is set to 20 mm or more and half the length in the width direction or less, The waist belt 15 has a wide width, does not curl in the width direction when worn, and does not impair the wearing comfort when worn.

Since the width of the elastic body 16 of the waist belt 15 is 0.5 mm or more and less than the width of the waist belt, the number of elastic bodies can be reduced.

Further, the liquid-permeable surface sheet 2 of the diaper body 1
The excretory liquid does not laterally leak due to the bag portion 10 formed of the liquid-impermeable bag sheet 9 on both sides.

The side leg portions 5 of the diaper body 1
As a result of examination by monitoring, the narrow portion 17 of the liquid absorber 4 and
Positioning in the central part gave good appearance and fit when worn.

Further, in the above embodiment, the widthwise length of the left and right waist belts 15 is not less than 20 mm and is not more than half the widthwise length of the diaper body, but as shown in FIG. In addition, the length of the left and right waist belts 15 in the width direction may be set to ½ of the length of the diaper body 1 in the width direction, and the shape of the diaper body may be substantially hexagonal.

In the disposable diaper shown in the embodiment shown in FIGS. 1 to 5, the space L ₁ shown in FIG. 4 is formed between the waist belts 15 attached to the diaper body 1, so that the disposable diaper is not worn when worn. The liquid-permeable surface sheet 2 is large on the abdomen and back of the skin so that the touching part is large and the wearing feeling is good. However, even with the structure shown in FIG. 6, most of the abdomen and back of the skin has a liquid-permeable surface sheet. 2. The elastic force of the waist belt 15 does not directly act on the abdomen and back, so that a feeling of pressure is generated on the abdomen and the elastic force of the waist belt 15 is applied to the portion of the diaper body 1 that touches the abdomen and back. A wrinkle does not occur and the wearing feeling is improved.

Furthermore, in the above-mentioned embodiment, the liquid absorbent body 4 is sandwiched between the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 of the diaper body 1, but the diaper body 1 is further constructed. The liquid impermeable film having substantially the same size as the liquid absorbent body 4 is interposed between the liquid impermeable back sheet 3 and the liquid absorbent body 4 to prevent the leakage of the excreted liquid around the liquid absorbent body 4. Leakage can also be reliably prevented.

Another embodiment of the disposable diaper of the present invention will be described with reference to FIGS. 7 and 8. It should be noted that the same structural parts as those of the above-described embodiment are denoted by the same reference numerals and the description thereof will be omitted.

In FIG. 7 and FIG. 8, the diaper body 1 is a liquid-permeable surface sheet 2 such as a woven cloth, a non-woven cloth, a porous film or the like which has a breathable property and is a surface which comes into contact with the wearer's skin, and a breathable material. Having a liquid-impervious backsheet 3 such as a resin film, and a high molecular weight water-absorbing polymer composed mainly of pulp disposed between the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3. It is configured by laminating a liquid absorber 4 such as a substance. The liquid impermeable back sheet 3
A liquid impermeable film 30 for preventing leakage of excreted liquid leaking around the liquid absorbent body 4 is interposed between the liquid absorbent body 4 and the liquid absorbent body 4.

Then, the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 are bonded at their peripheral portions by adhesion or fusion, and the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 are joined together.
The liquid absorber 4 and the liquid-impervious film 30 are enclosed between and.

In this liquid absorber 4, a narrow portion 17 is formed with the center in the longitudinal direction further forward.

Both ends of the diaper body 1 in the longitudinal direction are formed with straight end edges at the center of the diaper body 1 in the width direction. Is formed on the inclined edge 6 inclined at 35 ° to 55 ° to form a substantially octagonal shape.

The liquid-permeable top sheet 2 and the liquid-impermeable back sheet 3 each have air permeability, and are enclosed between the liquid-permeable top sheet 2 and the liquid-impermeable back sheet 3. The liquid absorber 4 is formed to have a dimension shorter than the length of the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 in the longitudinal direction,
The longitudinal ends of the liquid absorber 4 enclosed between the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 are defined by the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3. The air-permeable portions 31 for maintaining air permeability are formed at positions apart from both edges and in contact with the abdomen and back of both ends of the diaper body 1.

Further, both side portions in the width direction of the diaper body 1 are formed by narrowing the front side from the substantially central portion in the longitudinal direction of the diaper body 1 between the end portions of the sloping edge 6 as a narrow portion. An intermediate portion of both side edges is formed in the leg portion 5. The leg gathers 8 having elasticity are attached to the leg parts 5 on both sides by extending and sewing one or more elastic bodies 7 such as rubber along the outer edges of the leg parts 5 on both sides. Form.

Further, a concave arcuate portion 32 serving as a front marker is formed at the center of the front edge of the diaper body 1, and a convex arcuate portion 33 serving as a rear marker is formed at the center of the rear edge. To project.

The width of both end edges connecting between the ends of the both end connecting portions where the both side waist belts 15 are connected is 20 mm to 50 mm.
And the width of the concave arc formed in the center of one edge is 2
The depth is set to 0 mm to 50 mm, the depth is set to 20 mm to 50 mm, and the width of the convex arc-shaped portion formed at the center of the other edge is set to 20.
mm to 50 mm and the protruding height is 20 mm to 50 mm
Take.

Further, liquid-impervious bag sheets 9 are laminated on both sides of the liquid-permeable topsheet 2 of the diaper body 1, and both end portions and outer edges of both liquid-impermeable bag sheets 9 are arranged. Left and right bag portions 10 are formed on the left and right sides of the liquid-permeable topsheet 2 by bonding or fusion bonding to prevent lateral leakage of excrement. The bag portion 10 has elastic bodies 11 such as rubber stretched along the inner edges of the left and right liquid-impervious bag sheet 9 which is the opening edge of the bag portion 10 with the inner edges facing each other opened by sewing or the like. A gather portion 12 is formed.

Furthermore, a waist belt 15 having breathability
Are disposed on both sides of the liquid-permeable surface sheet 2 of the diaper body 1 along the longitudinal direction, respectively.
The length of the diaper body is approximately the same as the length of the diaper body 1 in the longitudinal direction, and the length in the width direction is 20 mm or more, which is one half or less of the length of the diaper body 1 in the width direction. A gap L ₁ is formed. A plurality of elastic bodies 16 such as stretched rubber are attached in the longitudinal direction by sewing or the like, and one or more elastic bodies 16 such as stretched rubber are longitudinally attached to the waist belt 15. It is attached by sewing. The elastic body 16 has a width of 0.
The width is 5 mm or more and is less than the width of the waist belt 15.

Both waist belts 15 are joined at both ends of the diaper body 1 so that both ends of the waist belt 15 and both ends of the leg gather 8 are opposed to each other. The elastic body 16 and the elastic body 11 of the leg gather portion 8 are integrally expanded and contracted.

Further, the elastic body 16 of the waist belt 15 has a stretching ratio of 250% to 600%, preferably 500% to 6%.
00%.

Next, the operation of this embodiment will be described.

When the waist belts 15 are grasped by the diaper body 1, the diaper body 1 is bent into a substantially U shape with the liquid permeable top sheet 2 inside, and the waist belts 15 at both ends are at both ends of the diaper body 1. The legs are connected to each other to form leg openings 20 on the left and right, and a waist opening 21 is opened on the upper side to form a pants-like shape, which can be worn as it is by opening both waist belts 15 from side to side.

Further, in the diaper body 1, the concave arcuate portion 32 formed on the front end edge serves as a front marker, so that it is easy to check the front and back when wearing, and there is no difference in front and back, and the wearability is good.
Further, the concave arcuate portion widens the front side of the diaper body 1 to eliminate the feeling of pressure in the leg-surrounding portion and improve the motility. There is no need to check the front and back when mounting, and wearability is good.

Further, the markings of the concave arcuate portion 32 and the convex arcuate portion 33 on the front and rear of the diaper are made by a consistent manufacturing process when cutting the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 of the diaper body. 1 can be integrally formed, and the material material can be manufactured inexpensively without waste.

Then, both side leg parts 5 of the diaper body 1
Since the front side is deeply cut out, the left and right leg openings 20 are widened and the front side is deeply formed, so that the leg openings 20 of the diaper body 1 are not strongly tightened at the thigh base, and the diaper is worn. With this, the abdomen and back do not feel uncomfortable, the range of adaptive sizes can be widened, and the motility at the time of wearing can be enhanced.

In addition, a space L ₁ is formed between both waist belts 15 attached to the diaper body 1, and in the worn state, the liquid permeable surface sheet 2 touches the abdomen and back of the skin and directly touches the abdomen and back. The elastic force of the waist belt 15 does not act directly on the abdomen, which causes a feeling of pressure on the abdomen, and the elastic force of the waist belt 15 does not cause wrinkles on the part of the diaper body 1 that comes into contact with the abdomen and the back to provide a comfortable fit. Get better

Further, since both ends of the waist belts 15 on both sides and both ends of the leg gathers 8 face each other, even if the leg openings 20 are widened, the leg openings 20 and the waist openings 8 are not widened.
The elastic force of the elastic body 16 of the waist belt 15 and the elastic body 11 of the leg gather portion 8 act in series on 21 and 21, and the leg parts 5 on both sides are
Is closely attached to the thigh root part, and in particular, both sides of the waist belt 15 at both ends of the diaper body 1 are cut so that the leg openings 20 of the diaper body 1 are not tightly tightened at the thigh base. Even if the left and right leg openings (20) are made to be large, the leakage of excreted liquid is surely prevented.

Further, since the elastic body 16 of the waist belt 15 is stretched at a rate of 250% to 600%, the waist belt
The elastic material of 15 has a high expansion rate, and even if the leg opening 20 and the waist opening 21 are enlarged, the range of applicable sizes can be widened, and one type of diaper can be used as JIS clothing sizes S, M and L. .

Since the length of the waist belt 15 is set to be substantially the same as the length of the diaper body 1 in the longitudinal direction, and the length in the width direction is set to 20 mm or more and half the length in the width direction or less, The waist belt 15 has a wide width, does not curl in the width direction when worn, and does not impair the wearing comfort when worn.

Since the elastic body 16 of the waist belt 15 has a width of 0.5 mm or more and less than the width of the waist belt 15,
The number of elastic bodies 16 can be reduced.

Further, the liquid-permeable surface sheet 2 of the diaper body 1
The excretory liquid does not laterally leak due to the bag portion 10 formed of the liquid-impermeable bag sheet 9 on both sides.

Further, in the above-mentioned embodiment, the widthwise length of the left and right waist belts 15 is 20 mm or more and is not more than half the widthwise length of the diaper body. , As shown in Figure 6, left and right waist belt
The length of 15 in the width direction may be set to half the width of the diaper body 1 in the width direction, and the shape of the diaper body may be substantially hexagonal.

Furthermore, in the above embodiment, the liquid absorbent body 4 is sandwiched between the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3 of the diaper body 1, and the liquid-permeable body of the diaper body 1 is impermeable. The liquid absorber 4 is provided between the back sheet 3 and the liquid absorber 4.
Although the liquid-impervious film 31 having substantially the same size as the above is interposed, the liquid-impervious film 31 may be omitted.

[0097]

[Examples] Suitable dimensions and the like of the disposable diaper of each of the above-described embodiments are as follows.

The liquid-permeable topsheet 2 of the diaper body 1 is made of a nonwoven fabric having a thickness of 0.1 to 2 mm, preferably 0.22 mm.
It is formed by stacking one sheet, preferably two sheets. The liquid-impermeable backsheet 3 is formed of a polyethylene resin film having a thickness of 5 to 50 μm, preferably 20 μm.

The length of the diaper body 1 in the longitudinal direction is 450 to 1000 mm, preferably 700 mm, the length in the width direction is 250 to 600 mm, preferably 300 mm, and the width of the central portion in the longitudinal direction is 180 to 300 mm, Preferably 2
60 mm, lengthwise dimension of both leg parts 300 to 50
It is 0 mm, preferably 450 mm.

The liquid absorber 4 has a thickness of 3 to 20 mm,
Preferably 10 mm, longitudinal length is 400-900 m
m, preferably 490 mm, widthwise dimension 100-50
0 mm, preferably 180 mm, narrow portion 17 in the longitudinal middle portion
The width dimension of 80-230 mm, preferably 150 mm,
The width of the waist belt 15 is 20 to 300 mm, preferably 140 mm, the number of elastic bodies 16 is 1 to 30, preferably 8 and the width of the elastic bodies 16 is 0.1 to 300 mm, preferably 0.3 mm. Is.

With respect to the disposable diapers of the embodiments shown in FIGS. 1 to 5, the adaptability of the waist size, the diaper function, the feeling of use, etc. were monitored by the diapers having the following specifications.

The thickness of the diaper monitored was 0.
22mm non-woven fabric with one liquid permeable surface sheet 2 and thickness 2
From a liquid-impermeable backsheet 3 of 0 μm polyethylene resin film, and a liquid absorber 4 composed of a pulp and a superabsorbent polymer enclosed between the liquid-permeable topsheet 2 and the liquid-impermeable backsheet 3. The length of the Naru diaper body 1 in the longitudinal direction is 700 mm, the length in the width direction is 300 mm, the width dimension of the central portion in the longitudinal direction is 260 mm, the dimension of the both leg parts 5 in the length direction is 420 mm, and the liquid absorber 4 is The thickness is 10 mm, the length in the longitudinal direction is 490 mm, the dimension in the width direction is 180 mm, the width dimension of the narrow portion 17 in the longitudinal direction is 150 mm, the width of the waist belt 15 is 140 mm, and the number of elastic bodies 16 is , The width of the elastic body 16 was 3.2 mm, and the extension ratio was 300%.

The monitoring was performed by 13 healthy men and 8 women, 21 in total.

As a result of this monitoring, it was revealed that the minimum waist size was 60 cm and the maximum waist size was 120 cm, and that one size fits each of JIS clothing sizes S, M and L.

Further, the diaper function, the feeling of use, etc. are shown in the attached table 1, and it was found that the evaluation of the middle level or higher achieved 70%.

[0106]

[Table 1] Further, in the embodiment shown in FIG. 7 and FIG. 8, the width of both end edges connecting between the ends of the both end connecting portions to which the waist belt 15 is connected is set to 20 mm to 50 mm, preferably 30 mm, and the center portion of the front end edge is The width of the concave arc formed is 20mm-50m
m, preferably 30 mm and a depth of 20 mm to 5
0 mm, preferably 30 mm, and the width of the convex arc portion formed in the central portion of the rear edge is 20 mm to 50 mm, preferably 30 mm
And the protrusion height is 20 mm to 50 mm, preferably 30 mm.

[0107]

According to the first aspect of the present invention, the leg openings of both side leg portions of the diaper body are enlarged, the range of adaptive size can be widened, and the mobility during wearing can be enhanced. .

According to the second aspect of the present invention, the both side portions of both ends of the diaper body are slanted edges along the slanted joint portions of both side waist belts disposed on both sides of the diaper body. The main body has a substantially hexagonal shape or an octagonal shape, and can be easily worn as it is by opening the waist belt left and right.

According to the third aspect of the present invention, since a gap is formed between the waist belts on both sides of the diaper body, the elastic force of the waist belt does not directly act on the portions that come into contact with the abdomen and back of the skin. There is no feeling of pressure on the abdomen, and wrinkles do not occur on the part of the diaper body that comes into contact with the abdomen and the back due to the elastic force of the waist belt, and the wearing feeling is good.

According to the invention of claim 4, the liquid-permeable top sheet and the liquid-impermeable back sheet each have air permeability, and the air-permeable portions are formed at both ends of the diaper body.
Breathability is maintained in the parts of the diaper body that come into contact with the abdomen and back so that the skin does not get damp.

According to the fifth aspect of the invention, the liquid-impervious film reliably prevents the leakage of excreted liquid leaking around the liquid absorber.

According to the sixth aspect of the present invention, since both ends of the waist belt and both ends of the leg gather portion face each other, even if the leg opening is widened, the leg opening and the waist opening are connected in series. The elastic force of the action acts on both legs and the thigh root is closely attached, and the leakage of excrement is reliably prevented.
The range of adaptive sizes can be expanded.

According to the seventh aspect of the present invention, excrement can leak sideways by forming the bag portion with the liquid impermeable bag sheet on both sides of the diaper body on the liquid permeable surface sheet side. Absent.

In the disposable diaper according to the eighth aspect of the present invention, the breathable portion of the portion of the diaper body that comes into contact with the abdomen and back is in the range of 80 mm to 150 mm and the width is 160 mm to 25 mm.
Since it has a trapezoidal shape of 0 mm, the excreted liquid is absorbed by the liquid absorber without leaking, and the abdomen and the back do not get damp.

According to the ninth aspect of the present invention, by setting the stretch rate of the elastic body of the waist belt to be 250% to 600%, the stretch rate of the elastic body of the waist belt is increased, and the leg openings and the waist are increased. The size of the opening can be made large, and even if the body shape is different, it can be in close contact with the body and the range of applicable sizes can be widened, so that one type of diaper can be used as JIS clothing sizes S, M and L.

According to the tenth aspect of the present invention, the length of the waist belt is substantially the same as the length of the diaper body in the longitudinal direction, the length in the width direction is 20 mm or more, and the length in the width direction is 2 minutes. By setting it to 1 or less, the waist belt has a wide width, does not curl in the width direction when worn, and does not impair the wearing comfort when worn.

According to the eleventh aspect of the invention, since the width of the elastic body of the waist belt is 0.5 mm or more, the number of elastic bodies can be reduced.

According to the twelfth aspect of the present invention, the diaper body has a front-rear symmetric shape symmetrical about the center in the longitudinal direction, so that the ventral side and the back side are the same, and the front and back are confirmed at the time of wearing. It is not necessary and the wearability is good.

According to the thirteenth aspect of the present invention, the leg parts on both sides of the diaper body are formed by deeply notching the front side, so that the leg openings of the diaper body are not strongly tightened at the thigh base. There is no discomfort in the abdomen and back when the diaper is worn.

According to the fourteenth aspect of the present invention, the diaper main body is provided with a concave arc-shaped portion formed at the center of one end connecting the ends of the both end joints and a protrusion at the center of the other end. With the convex arcuate part, the marking on the front part of the diaper can be integrally formed with the diaper body in a consistent manufacturing process when cutting the liquid-permeable top sheet and liquid-impermeable back sheet of the diaper body. It is easy to check the front and back, there is no need to attach another member, and it can be manufactured at low cost.

According to the fifteenth aspect of the present invention, a concave arc portion is formed at the center of the front end edge of the diaper body and a convex arc portion is provided at the center of the rear end edge of the diaper body. The concave arc-shaped portion formed on the edge on the abdomen side serves as a front-side marker, and the concave arc-shaped portion causes the spread, which relieves the feeling of pressure on the leg circumference portion and improves the motility.

According to the sixteenth aspect of the present invention, the width of both end edges of the diaper body is 20 mm to 50 mm, the width of the concave arc portion is 20 mm to 50 mm, and the depth is 20 mm to 50 mm.
By setting the width of the convex arcuate portion to 20 mm to 50 mm and the protruding height to 20 mm to 50 mm, the concave arcuate portion at one end edge central portion formed on the diaper body and the other end edge central portion are formed. The convex arcuate portion of is easy to confirm as a marker display of a size that does not interfere.

[Brief description of drawings]

FIG. 1 is a perspective view of a mounted state of a disposable diaper showing an embodiment of the present invention.

FIG. 2 is a developed front view showing a state where the waist belt of the disposable diaper is unfolded.

FIG. 3 is a developed front view of the above disposable diaper.

FIG. 4 is a developed rear view of the disposable diaper of the above.

FIG. 5 is a front view of the disposable diaper in the mounted state.

FIG. 6 is a developed front view of a disposable diaper showing another embodiment of the present invention.

FIG. 7 is a developed front view of a disposable diaper showing another embodiment of the present invention.

FIG. 8 is a partially longitudinal side view of the disposable diaper of the above.

[Explanation of symbols]

 1 Diaper body 2 Liquid permeable top sheet 3 Liquid impermeable back sheet 4 Liquid absorber 5 Both leg parts 8 Leg gathers 9 Liquid impermeable bag sheet 10 Bag part 15 Waist belt 16 Elastic body 30 Liquid impermeable Film 32 Concave arc 33 Convex arc

Claims (16)

[Claims] 1. A liquid-permeable front sheet, a liquid-impermeable back sheet, and a liquid absorber enclosed between the liquid-permeable front sheet and the liquid-impermeable back sheet, and in the width direction. Both sides of the diaper body with elastic leg gathers formed on both sides of the leg and the liquid permeable surface sheet of the diaper body are arranged along the longitudinal direction on both sides, and both ends are stopped at both ends of the diaper body. And a waist belt having an elastic body attached, the both ends of the waist belt are connected to both ends in the longitudinal direction of the diaper body in an inclined manner from the center side in the width direction of the diaper body toward both leg parts. A disposable diaper characterized in that both side leg portions of the diaper body are formed by notching both side portions between the joint portions of the waist belt at both ends of the diaper body. 2. The diaper body according to claim 1, characterized in that both side portions of both ends of the diaper body are formed as slanted edges along joint portions of both side waist belts disposed on both sides of the diaper body. Disposable diaper. 3. The waist belts on both sides of the liquid-permeable surface sheet of the diaper body have a width of 2 times the width of the body.
The disposable diaper according to claim 1 or 2, wherein the waist diaper is formed to have a width of one-half or less and a gap is formed between the waist belts. 4. The liquid-permeable top sheet and the liquid-impermeable back sheet each have air permeability, and the liquid absorber enclosed between the liquid-permeable top sheet and the liquid-impermeable back sheet is the above-mentioned material. The length of the liquid absorber formed between the liquid-permeable top sheet and the liquid-impermeable back sheet in a dimension shorter than the longitudinal length of the liquid-permeable top sheet and the liquid-impermeable back sheet. 4. A permeable portion is formed at both ends of the diaper body, with both end positions in the direction being separated from both end edges of the liquid permeable top sheet and the liquid impermeable back sheet. The disposable diaper according to any one of 1. 5. The disposable diaper according to claim 1, wherein a liquid-impermeable film is provided between the liquid-impermeable back sheet and the liquid absorber. 6. The diaper main body according to claim 1, wherein both ends of the waist belt and both ends of the leg gather portion are opposed to each other at both ends of the waist belt disposed on both sides of the diaper body. The disposable diaper according to any one of 5 above. 7. The diaper body according to any one of claims 1 to 6, wherein a bag portion is formed on both sides of the diaper body on the liquid permeable surface sheet side, the inner rims of the liquid permeable bag sheet facing each other being open. The disposable diaper described in Crab. 8. The breathable portions formed at both ends of the diaper body are 80 mm to 15 mm respectively from both edges of the diaper body.
The disposable diaper according to claim 4, wherein the width dimension on the inner end side in the range of 0 mm has a trapezoidal shape of 160 mm to 250 mm. 9. The stretch ratio of the elastic body of the waist belt is 25.
The disposable diaper according to claim 1, wherein the disposable diaper is 0% to 600%. 10. The length of the waist belt is substantially the same as the length of the diaper body in the longitudinal direction, and the length in the width direction is 20.
The disposable diaper according to any one of claims 1 to 9, wherein the disposable diaper has a length of not less than mm and not more than half the length of the diaper body in the width direction. 11. The width of the elastic body of the waist belt is 0.5.
The disposable diaper according to any one of claims 1 to 10, wherein the width is not less than mm and not more than the width of the waist belt. 12. The disposable diaper according to claim 1, wherein the diaper body is symmetrical about the center in the longitudinal direction. 13. The disposable diaper according to claim 1, wherein both side leg portions of the diaper body are deeply cut out at the front side. 14. The diaper body has a concave arc-shaped portion formed at the center of one end connecting the ends of the both-end joints connecting both side waist belts and a convex arc-shaped portion at the center of the other end. The disposable diaper according to claim 13, wherein the disposable diaper is projected. 15. The disposable diaper according to claim 14, wherein a concave arcuate portion is formed at the center of the front edge of the diaper body and a convex arcuate portion is provided at the center of the rear edge. 16. The width of both end edges connecting between the ends of the both end joints connecting both waist belts is 20 mm to 50 mm,
The width of the concave arc portion formed in the center of one edge is 20 mm
The depth is set to 50 mm and the depth is set to 20 mm to 50 mm, and the width of the convex arc portion formed at the center of the other edge is 20 mm to 50
The disposable diaper according to claim 14, wherein the disposable diaper has a height of 20 mm to 50 mm and a height of 20 mm to 50 mm.