JP3240734U - worn article - Google Patents

Abstract

[Problem] To provide a wearing article that looks good even when the user goes out while wearing the article. SOLUTION: In a wearing article 1 of the present invention, an exterior sheet 3 is joined to front and rear end regions 2A, 2B of an absorbent body 2 in a waist region 11, and an absorbent body 2C is formed in a region 2C therebetween. 2 and non-bonded state. When the wearing article 1 in the maximum stretched state is viewed from above, the lower edge of the outer sheet 3 is at the same position as the lower end of the absorbent main body 2 or exceeds the lower end. The width of the first elastic region 51 of the exterior sheet 3 is 15 mm or more and 35 mm or less. The pressure at the waist opening when the wearing article is worn is lower than the pressure at the first elasticized region 51 . The distance from the lower end of the absorbent body 2 to the central position of the width of the first elasticized region 51 is 100 mm or more and 200 mm or less in a plan view in the maximum stretched state. [Selection drawing] Fig. 2

Description

The present invention relates to wearing articles such as disposable diapers.

Disposable diapers having a skirt-shaped exterior body are known. For example, in Patent Document 1, there is provided a front side band member and a rear side band member that join both ends of an absorbent body, and a front side skirt portion and a rear side skirt portion are provided below these band members. A diaper is disclosed.

The present applicant has previously provided a rectangular ventral sheet member, a rectangular dorsal sheet member, and an absorbent main body fixed across these members, and the ventral sheet member and the dorsal sheet member proposed a pants-type absorbent article having a main body portion having side seal portions on both left and right sides, and an extension portion extending from the main body portion toward the crotch portion ( Patent document 2).

JP 2018-201675 A JP 2012-148067 A

In the skirted disposable diaper described in Patent Document 1, the positions of the lower ends of the front skirt portion and the rear skirt portion are higher than the position of the lower end of the absorbent main body. When worn, the absorbent body is visible from the lower end of the skirt. Therefore, the disposable diaper described in the document is unsuitable for going out because it looks bad when going out while wearing it.

The underpants-type absorbent article described in Patent Document 2 is worn in place of underwear, and is not intended to be worn in place of outerwear.

Accordingly, an object of the present invention is to provide a wearing article that looks good even when it is worn while going out.

The present invention is a wearing article having a waist opening, a pair of leg openings, and a waist region located between the waist opening and the leg openings,
The wearing article comprises an absorbent body having a longitudinal direction and a width direction orthogonal to the longitudinal direction, and an exterior sheet disposed on the outer surface of the absorbent body and covering the absorbent body,
The exterior sheet is joined to a front end region and a rear end region along the longitudinal direction of the absorbent body in the waist region, and is joined to the absorbent body in a region between the front end region and the rear end region. It is in a non-bonded state,
The exterior sheet has an elasticized region in the waist region that is stretchable along the width direction of the wearing article,
In a plan view when the wearing article is placed in a flat state and in a maximum stretched state, the lower edge of the exterior sheet is at the same position as the lower end of the absorbent main body, or the lower end of the absorbent main body is at the same position. has exceeded
the pressure of the waist opening when the wearing article is worn is lower than the pressure of the elasticized region when the wearing article is worn,
The elastic region has a width of 15 mm or more and 35 mm or less,
The present invention provides a wearing article, wherein the distance from the lower end of the absorbent body to the central position of the width of the elasticized region is 100 mm or more and 200 mm or less in plan view in the maximum stretched state.

According to the wearing article of the present invention, it can be worn in place of an outer garment, and it looks good even when going out while wearing it.

FIG. 1 is a perspective view schematically showing one embodiment of the wearing article of the present invention. FIG. 2 is a developed plan view schematically showing the skin-facing surface side (inner surface side) of the diaper shown in FIG. 1 in a fully expanded state. Fig. 3 is a plan view schematically showing the diaper when the diaper is placed in a flat state and in a maximum stretched state. It explains the positional relationship with. FIG. 4 is a plan view schematically showing the diaper when the diaper is placed in a flat state and placed in a natural state. FIG. 5 is an explanatory diagram showing the ilium. FIG. 6 is an explanatory diagram showing a method of calculating the slipping force at the wearer's waist. FIG. 7 is a perspective view schematically showing another embodiment of the wearing article of the present invention.

The present invention will be described below based on its preferred embodiments with reference to the drawings. 1 and 2 show a skirt-type disposable diaper 1 that is an embodiment of the present invention. As shown in FIGS. 1 and 2, the diaper 1 comprises an absorbent body 2 and an exterior sheet 3 arranged on the outer surface thereof. The diaper 1 has a waist opening WH and a pair of leg openings LH, LH. The exterior sheet 3 has a waist region 11 between the waist opening WH and the leg openings LH, and has a waist region 12 along the waist opening WH. The waist region 12 is formed between the opening edge of the waist opening WH and the upper end of the waist region 11 . In addition to the waist region 12 and the waist region 11 , the exterior sheet 3 has a lower region 13 located below the waist region 11 .

In this specification, the "skin-facing surface" refers to the surface facing the wearer's skin when the diaper is worn, i.e., the surface facing the wearer's skin. The side close to the skin, and the "non-skin facing side" is the side of the diaper or its constituent members that faces away from the skin when the diaper is worn, that is, the side that is relatively far from the wearer's skin. .

The absorbent main body 2 is a member arranged to cover the wearer's crotch when the diaper 1 is worn. The absorbent main body 2 is non-stretchable in the wearer's waist circumference direction. In the following description, the waist direction of the diaper 1 is also referred to as the width direction, and indicated by Y in the drawings. The direction orthogonal to the waist circumference direction is also called the vertical direction or the longitudinal direction, and is indicated by X in the drawing.

The absorbent main body 2 has a longitudinal direction X and a width direction Y, and as shown in FIG. 2, has a vertically long substantially rectangular shape in the maximum stretched state. In this specification, the "maximum stretched state" means that the diaper 1 is in an unfolded state, and the elastic members of each part of the diaper 1 in the unfolded state are stretched to the maximum to design dimensions (a state in which the influence of the elastic members is completely eliminated). It refers to the state in which it is expanded until it becomes the same size as when it is expanded flat). The absorbent main body 2 is divided into a front end region 2A and a rear end region 2B positioned at both end regions along the longitudinal direction X, and a central region 2C positioned between these regions. When the diaper 1 is worn, the front end region 2A and the rear end region 2B are positioned on the abdomen and back of the wearer. On the other hand, the central region 2C is positioned at the crotch portion of the wearer.

As shown in FIG. 2, the absorbent main body 2 includes a liquid-permeable topsheet 21 forming a skin-facing surface and a liquid-impermeable or liquid-impermeable backsheet (not shown) forming a non-skin-facing surface. , and a liquid-retaining absorbent 22 interposed between the two sheets, which are integrated by a known bonding means such as an adhesive.

As shown in FIG. 2, the absorbent main body 2 has a pair of leak-proof cuffs 23, 23 on both side edges 25, 25 along the longitudinal direction X of the skin-facing surface. One or more thread-like elastic members 24 for forming a leak-preventing cuff are arranged in a stretched state along the longitudinal direction X near the free end of each leak-preventing cuff 23 . The leak-proof cuff 23 stands up at least at the crotch portion by contracting the elastic member 24 arranged in a stretched state when the diaper 1 is worn. As a result, excrement such as urine is prevented from flowing outward in the width direction Y.

The top sheet 21, the back sheet (not shown), the absorber 22, the sheets forming the leak-proof cuffs 23, and the elastic members 24 are the same as those conventionally used in absorbent articles such as disposable diapers. It can be used without any particular limitation. For example, as the surface sheet 21, a nonwoven fabric having a single-layer or multi-layer structure, a perforated film, or the like can be used. A moisture-permeable resin film or the like can be used as the back sheet (not shown). As the absorbent body 22, an absorbent core made of an absorbent material composed of absorbent polymer particles or fibrous material, etc., covered with tissue paper can be used. As the sheet forming the leak-proof cuff 23, a liquid-resistant or water-repellent and air-permeable sheet can be used. A thread rubber or the like can be used as the elastic member 24 .

The absorber 22 may have a two-layer structure consisting of an upper layer and a lower layer. In this case, it is preferred that the absorbent material of the top layer contains an absorbent polymer and a fibrous material. As the fibrous material, water-absorbing fibers are preferred. Examples of water-absorbent fibers include wood pulp such as softwood pulp and hardwood pulp, natural fibers such as non-wood pulp such as cotton pulp and hemp pulp; ); hydrophilic synthetic fibers and the like can be mentioned, and these can be used alone or in combination of two or more. As the absorbent polymer, a particulate one is generally used, but a fibrous one may also be used. The shape of the particulate absorbent polymer is not particularly limited, and may be, for example, spherical, blocky, bale-shaped, or irregular. Absorbent polymers are typically based on polymers or copolymers of acrylic acid or alkali metal acrylate salts. The absorbent material of the lower layer preferably contains an absorbent polymer, and preferably 80% or more and 100% or less of the absorbent material of the lower layer contains an absorbent polymer. The upper layer and the lower layer are sandwiched between core wrap sheets.

As shown in FIGS. 1 and 2 , the outer sheet 3 is a member that covers the absorbent main body 2 and also a member that forms the outer shape of the diaper 1 . When the diaper 1 is put on, the exterior sheet 3 includes an abdominal sheet member 3A, which is a front sheet member arranged on the abdomen of the wearer, and a back sheet member 3A, which is a rear sheet member arranged on the back of the wearer. and a sheet member 3B. The ventral sheet member 3A and the dorsal sheet member 3B each have a substantially rectangular shape elongated in the width direction Y in the maximum stretched state, as shown in FIG. The abdominal sheet member 3A is joined to the front end region 2A of the absorbent main body 2 in the waist region 11, and the back sheet member 3B is joined to the rear end region 2B of the absorbent main body 2 in the waist region 11. be. The abdominal sheet member 3A and the dorsal sheet member 3B are in a non-bonded state with the absorbent main body 2 in the lower region 13, respectively. In addition, the central region 2C of the absorbent main body 2 is in a non-bonded state with each of the abdominal sheet member 3A and the dorsal sheet member 3B. A known joining means such as an adhesive is used for this joining.

The abdominal sheet member 3A and the dorsal sheet member 3B to which the absorbent main body 2 is joined are, as shown in FIG. The pair of side seal portions 4, 4 are formed in the diaper 1 as shown in FIG. ing. The side seal portion 4 extends over the entire length of the exterior sheet 3 in the vertical direction X. As shown in FIG. For this joining, a known joining means such as heat sealing, high frequency sealing, ultrasonic sealing, adhesive agent, or the like is used. By this joining, the diaper 1 is formed with a side seal portion 4 as well as a waist opening WH and a pair of leg openings LH, LH.

As shown in FIG. 3(a), when the diaper 1 is laid flat and stretched to its maximum extent in a plan view, the lower edge 3d of the exterior sheet 3 is aligned with the lower end 2d of the absorbent body 2. As shown in FIG. , or the lower edge 3d exceeds the lower end 2d of the absorbent body 2 as shown in FIG. The lower end 2d and the lower edge 3d are the lowest positions in the longitudinal direction X in the plan view. Since the lower edge 3d of the exterior sheet 3 and the lower edge 2d of the absorbent body 2 are arranged in such a relationship, it is difficult to see the absorbent body 2 from the lower edge 3d of the exterior sheet 3 when the diaper 1 is worn. Become. Therefore, the diaper 1 can be worn in place of outer clothing, and looks good even when the diaper is worn when going out.

As shown in FIG. 4, in a plan view of the diaper 1 when the diaper 1 is placed in a flat state and in a natural state, the lower region 13 of the exterior sheet 3 has a length in the width direction Y It gradually increases toward the bottom of X. As a result, the outer sheet 3 has a skirt-like appearance. A natural state is a state in which no external force is applied. Since the exterior sheet 3 has a skirt-like appearance in its natural state, the diaper 1 can be used as an outer garment without resistance.

As shown in FIG. 4, the abdominal sheet member 3A and the dorsal sheet member 3B have a first elasticized region 51 that is stretchable along the width direction Y in the waist region 11. It further has a second elasticized region 52 that is stretchable along the width direction Y between 51 and the leg opening LH. The abdominal sheet member 3A and the back sheet member 3B further have third elasticized regions 53 that are stretchable along the width direction Y in the waist region 12 in addition to the waist region 11 . In the diaper 1, in the entire lower region 13, that is, in the region between the lower end of the waist region 11 and the lower edge 3d of the outer sheet 3, the elasticized region stretchable along the width direction Y is not arranged. It's becoming As shown in FIGS. 3(a) and 3(b), the waist region 12 is located downward from the opening edge 1e of the waist opening WH in the vertical direction X in each of the ventral sheet member 3A and the dorsal sheet member 3B. This is an area up to a position 30 mm apart from . As shown in the figure, the waist region 11 is between the waist region 12 and the upper edge 1f of the opening edge of the leg opening LH in the vertical direction X in each of the ventral sheet member 3A and the dorsal sheet member 3B. is the area of

The pressure of the waist opening WH when the diaper 1 is worn is lower than the pressure of the first elasticized region 51 when the diaper 1 is worn. The first elastic region 51 is preferably arranged in a region that contacts a region from the iliac crest to the anterior superior iliac spine of the wearer (hereinafter also referred to as the iliac region) when the diaper 1 is worn. The iliac crest and anterior superior iliac spine are anatomical terms. The iliac crest is the site indicated by Q1 in FIG. 5, and the anterior superior iliac spine is the site indicated by Q2 in FIG. In the diaper 1, the tightening pressure of the first elasticized region 51 corresponding to the ilium region of the wearer is higher than the tightening pressure of the waist opening. easily adheres to the wearer's body, and can prevent the waist opening WH from slipping down. The diaper 1 is particularly effective for infants whose abdomen is protruding.

FIG. 6 shows the infant's body as if it were a cone. In the figure, θ represents the angle formed by the perpendicular to the tangent line at the waist (point A) and the horizontal line toward the center of the body, F represents the tightening force of the elastic body, P represents the frictional force caused by F, f1 indicates the slipping force caused by F, and f2 indicates the normal force. Since f1=Fsin .theta. and P=.nu.N=.nu.f2=.nu.Fcos .theta.
Z=f1−P=F sin θ−νF cos θ=F(sin θ−ν cos θ)
From this formula, it can be understood that when the waist opening WH is in a state of slipping down, the larger the tightening force (F), the larger the slipping force.

The first elastic region 51 preferably has a pressure of 1.1 kPa or more and 2.5 kPa or less when the diaper 1 is worn. When the pressure of the first elasticized region 51 when worn is less than 1.1 kPa, it becomes difficult to fix the first elasticized region 51 to the ilium region of the wearer, and as a result, the diaper 1 slides down. , the appearance of the diaper 1 in the worn state is greatly deteriorated. In particular, the central region 2C of the absorbent body 2 becomes excessively baggy, which causes leakage of urine and feces. On the other hand, if the wearing pressure of the first elasticized region 51 exceeds 2.5 kPa, the wearer's body is excessively tightened, making it difficult to put on the diaper 1 . From the viewpoint of more effectively preventing the diaper 1 from slipping down and further improving the appearance of the diaper 1 in the worn state and the wearing operation of the diaper 1, the pressure of the first elasticized region 51 when worn is: 1. It is preferably 1 kPa or more and 2.0 kPa or less, more preferably 1.2 kPa or more and 1.8 kPa or less.

The pressure applied to the first elastic region 51 when worn can be controlled, for example, by adjusting the material, thickness, elongation rate, or arrangement interval of the first elastic member 5a.

The wearing pressure of the first elasticized region 51 was measured by wearing the diaper 1 on a cylinder with a circumference of 500 mm and using a wearing pressure measuring device (a contact pressure measuring device (AMI3037-2) manufactured by AMI Techno Co., Ltd.). measured. A specific measuring method is as follows.

[Method of measuring the pressure of the first elasticized region 51]
Using an air pack of φ=15 mm, set so that the center of the air pack is positioned at the tip of the waist opening, and the mounting pressure (P1) is measured. The position in the diaper width direction where the air pack is set is approximately the center between the pair of side seal portions 4 and 4 and the side edge portions 25 and 25 of the absorbent main body 2 . Subsequently, the center of the air pack is moved 5 mm in the longitudinal direction of the diaper 1 and the wearing pressure (P2) is measured. Similarly, measurements are made at intervals of 5 mm to obtain P3, P4, P5, . . . , Pn. The measurements of P1 to Pn are carried out over the range of the outer sheet 3 from the waist opening to the leg opening where the side seal portions are formed. For P1 to Pn, a total of four measurements are performed on the ventral sheet member 3A, two on each side. The average value of these values is used as the mounting pressure of the ventral sheet member 3A. Similarly, the back sheet member 3B is also measured at a total of four points, and the average value is used as the mounting pressure of the back sheet member 3B. The width of the first elasticized region 51 is defined as the distance between portions continuously corresponding to the range of 1.1 kPa to 2.5 kPa in the values of P1 to Pn. For example, when P3 to P6 correspond, the width of the area is set to (6-3)×5=15 mm. The center of the width of the first elasticized region 51 at that time is the middle point between the measurement points 3 and 6 .

The reason why the circumferential length of the cylinder is set to 500 mm is that the average length of the circumference of the abdomen of an infant, who is the main target person to wear the diaper 1, is approximately 500 mm. The length of the abdominal circumference referred to here is the average value of the abdominal circumference measured in the standing and sitting positions, taking into account changes in the circumference of the abdomen when the infant's posture changes.

The pressure of the waist opening WH when the diaper is worn is lower than the pressure of the first elasticized region 51, preferably 0.3 kPa or more and 1.5 kPa or less, and more preferably 0.4 kPa or more and 1.2 kPa or less. It is preferably 0.4 kPa or more and 1.0 kPa or less. This pressure is preferably 0.5 kPa or more and 1.0 kPa or less lower than the average value of the pressure in the first elasticized region 51 when the diaper is worn. By setting the pressure of the waist opening WH within the above range, the waist opening WH can be easily expanded when the diaper 1 is worn, and the wearing operation can be easily performed. The pressure of the waist opening WH can be measured by the same method as the pressure of the first elasticized region 51 described above. The pressure of the waist opening WH can be controlled by adjusting the material, thickness, elongation rate, or arrangement interval of the waist elastic member 5c, for example. In addition, when the pressure of the waist opening WH falls within the pressure range of the first elasticized region 51 , the position is included in the first elasticized region 51 .

The pressure of the second elasticized region 52 when the diaper is worn is preferably 0.2 kPa or more and 0.8 kPa or less, more preferably 0.3 kPa or more and 0.6 kPa or less. As a result, the diaper 1 can be brought into close contact with the wearer's body with appropriate pressure, and liquid leakage can be effectively prevented. When the diaper 1 is worn, the second elasticized region 52 abuts on a region (lower abdomen) below the ilium region of the wearer. The pressure of the second elasticized region 52 can be measured by the same method as the pressure of the first elasticized region 51 described above. In relation to this, in the diaper 1, when the pressures of the waist opening WH, the first elasticized region 51 and the second elasticized region 52 are compared when the diaper is worn, the pressure of the first elasticized region 51 is is the highest, followed by the waist opening WH having the highest pressure and the second elasticized region 52 having the lowest pressure. By providing such an order to the pressure of each part, not only is it possible to effectively prevent the diaper 1 from slipping off during wear, but also the diaper 1 is in close contact with the wearer's body without discomfort, and liquid leakage is effectively prevented. effectively prevented.

The region from the iliac crest to the anterior superior iliac spine of the wearer has a certain width, and by fixing the first elastic region 51 to the region within the range of the width, the diaper 1 can be prevented from slipping down. can be effectively prevented. From this point of view, the width W of the first elasticized region 51 (see FIG. 3), that is, the length of the first elasticized region 51 along the longitudinal direction X of the diaper 1 is 15 mm or more and 35 mm or less. When the width W is 20 mm or more and 35 mm or less, particularly 25 mm or more and 30 mm or less, it is possible to effectively prevent the diaper 1 from slipping down, and further improve the operation of putting on the diaper 1 (e.g., ease of putting it on). From a similar point of view, the width of the second elasticized region 52 is preferably 40 mm or more and 70 mm or less, particularly 45 mm or more and 65 mm or less. As long as the width W of the first elastic region 51 is 15 mm or more and 35 mm or less, the abdominal sheet member 3A and the dorsal sheet member 3B may have the same width or different widths.

In order for the first elasticized region 51 to abut against the region from the iliac crest to the anterior superior iliac spine of the wearer when the diaper 1 is worn, the dimensions of the diaper 1 and the physique of the wearer are required. relationship is important. For example, when considering an infant who is the main wearer of a pants-type diaper, when the diaper 1 is in the maximum stretched state shown in FIG. is 100 mm or more and 200 mm or less. It is preferable that the distance K from the lower end 2d to the center position of the first elasticized region 51 be the same for both the abdominal sheet member 3A and the dorsal sheet member 3B. By setting the distance K to 120 mm or more and 180 mm or less, particularly 130 mm or more and 160 mm or less, the first elasticized region 51 can be more successfully brought into contact with the wearer's ilium region. The ventral sheet member 3A and the dorsal sheet member 3B may be the same or different as long as the distance K is 100 mm or more and 200 mm or less.

The ventral sheet member 3A and the dorsal sheet member 3B of the exterior sheet 3 are, as shown in FIGS. and an elastic member. The elasticized region stretchable along the width direction Y is formed by sandwiching and fixing an elastic member stretched in the width direction Y between two sheets of the outer layer nonwoven fabric 31 and the inner layer nonwoven fabric 32 . The outer layer nonwoven fabric 31 forms the outer surface of the diaper 1 . The inner layer nonwoven fabric 32 is arranged on the skin facing side of the outer layer nonwoven fabric 31 . A first elastic member 5 a is arranged in the first elasticized region 51 of the waist region 11 , and a second elastic member 5 b is arranged in the second elasticized region 52 . A waist elastic member 5 c is arranged in the waist region 12 .

The outer layer nonwoven fabric 31 and the inner layer nonwoven fabric 32 may be of the same type or of different types. Non-woven fabrics 31 and 32 are typically non-stretchable, but may be stretchable. Non-stretchable sheets include, for example, non-woven fabrics produced by various methods. Specifically, a spunbond nonwoven fabric, an air-through nonwoven fabric, and a needle-punched nonwoven fabric can be exemplified. As the elastic members 5a, 5b, 5c, the same elastic members as the elastic member 24 described above can be used.

As shown in FIG. 2, the outer layer nonwoven fabric 31 has a length that extends further than the portion where the waist elastic member 5c is clamped and fixed by the outer layer nonwoven fabric 31 and the inner layer nonwoven fabric 32, and is longer than the inner layer nonwoven fabric 32 of the outer layer nonwoven fabric 31. Extending regions 31A, 31A extending further are folded back toward the absorbent main body 2 side. Both ends of the absorbent main body 2 in the longitudinal direction X are covered with extension regions 31A. The extension regions 31A are fixed to both ends in the longitudinal direction X of the absorbent main body 2, for example, via an adhesive (not shown). In addition, the extension region 31A may be separate from the outer layer nonwoven fabric 31 .

Both the first elastic member 5a and the second elastic member 5b are, as shown in FIG. and is arranged in an extended state in the width direction Y. As a result, the first elasticized region 51 and the second elasticized region 52 are formed between the side edge portion 25 and the side seal portion 4 . The first elasticized region 51 and the second elasticized region 52 formed at such positions can effectively prevent the diaper 1 from slipping down while being worn. Between the side edges 25, 25 of the absorbent body 2, that is, in the region where the absorbent body 2 exists, the elastic members 5a, 5b are not arranged, and the elasticized regions 51, 52 are formed. It is in a non-arranged state. As a result, the outer sheet 3 does not shrink due to the contraction of the elastic members 5a and 5b in the area where the absorbent main body 2 exists even in the worn state, and the diaper 1 is improved in appearance and absorption performance. it will be good.

As shown in FIG. 2, the waist elastic member 5c is arranged in a stretched state in the width direction Y between the pair of side seal portions 4, 4 in each of the ventral sheet member 3A and the dorsal sheet member 3B. ing. As a result, the third elasticized region 53 is formed between the pair of side seal portions 4 , 4 in the waist region 12 .

As described above, the entire lower region 13 of the diaper 1 has no elasticized regions. As a result, when the diaper 1 in its natural state is viewed from above as shown in FIG. 4, the exterior sheet 3 tends to have a skirt-like appearance.

Next, another embodiment of a disposable diaper 1B in the wearing article of the present invention will be described with reference to FIG. Regarding the diaper 1B according to another embodiment, differences from the diaper 1 according to the embodiment described above will be described. Points that are not particularly described are the same as those of the diaper 1 according to the embodiment described above, and the description of the diaper 1 is appropriately applied.

As shown in FIG. 7, the outer sheet 3 of the diaper 1B has its lower edge 3d extending beyond the lower end 2d of the absorbent main body 2. As shown in FIG. The exterior sheet 3 of the diaper 1B has a fixed portion in which the width direction Y central portion of the abdominal sheet member 3A and the width direction Y central portion of the back sheet member 3B are joined to each other in the lower end region including the lower edge 3d. 36. A slit 37 extending upward along the longitudinal direction X from the lower edge 3d is formed in the fixed portion 36. As shown in FIG. By having the fixed portion 36, the exterior sheet 3 is formed with a pair of openings KH, KH opening downward in the lower end region including the lower edge 3d.

In a plan view of the diaper 1B placed in a flat state and in a natural state, a region of the lower region 13 of the exterior sheet 3 that is not joined to the absorbent main body 2 has a length in the width direction Y of , gradually increases downward in the vertical direction X. As a result, the exterior sheet 3 having the pair of openings KH, KH has a trouser-like appearance. Since the exterior sheet 3 has a trouser-like appearance in its natural state, the diaper 1B can be used as an outer garment without resistance.

In the diaper 1 shown in FIG. 1 and the diaper 1B shown in FIG. Placement. Alternatively, the first elasticized region 51 and the second elasticized region 52 may be arranged between the side edges 25, 25 of the absorbent body 2 as well. In the waist region 11, as in the waist region 12, even if the first elasticized region 51 and the second elasticized region 52 are arranged over the entire width direction Y between the pair of side seal portions 4, 4, good. By arranging in this way, the diaper 1 can be effectively prevented from slipping down while being worn.

Further, in the diaper 1 shown in FIG. 1 and the diaper 1B shown in FIG. 7, the elasticized region that is stretchable along the width direction Y is not arranged in the lower region 13 . Alternatively, the lower region 13 may also have an elasticized region extending over the entire width direction Y between the pair of side seal portions 4 , 4 . When the elasticized regions are arranged in this way, the diaper has a good texture even in the lower region 13 . From the viewpoint of improving the texture of the entire diaper, when the elasticized region is arranged in the lower region 13, the elasticized region extends over the entirety of the pair of side seal portions 4, 4 in the waist region 12 and the waist region 11 as well. is preferably arranged. When the pressures of the lower region 13, the waist opening WH, the first elasticized region 51 and the second elasticized region 52 are compared when the diaper is worn, the pressure of the lower region 13 is preferably the lowest. The pressure in the lower region 13 can be measured by the same method as the pressure in the first elasticized region 51 described above.

The diaper 1 shown in FIG. 1 and the diaper 1B shown in FIG. 7 can be manufactured, for example, by a method according to the method for manufacturing a side-flow pants-type disposable diaper described in Japanese Patent Application Laid-Open No. 2014-221097. For example, in this manufacturing method, when fixing the absorbent main body to the continuum of the abdominal sheet member and the continuum of the back sheet member formed by cutting by the dividing means, the continuum of the abdominal sheet member is cut. The diapers 1 and 1B can be manufactured by fixing the part and the cut part of the continuum of the back sheet member in a state in which they are in contact with each other or in a state in which both the cut parts overlap each other.

Although the present invention has been described above based on its preferred embodiments, the present invention is not limited to the above embodiments and can be modified as appropriate. For example, in the above embodiment, the side seal portion 4 extends over the entire length of the exterior sheet 3 in the vertical direction X. As shown in FIG. Alternatively, the side seal portions 4 may extend over the waist region 12 and the waist region 11 and the side seal portions 4 may not be formed in the lower region 13 .

For example, in the above embodiment, the exterior sheet 3 includes two members, a ventral sheet member 3A and a dorsal sheet member 3B. Alternatively, the exterior sheet 3 may be formed from one sheet member. Specifically, a strip-shaped sheet member that is long in the width direction Y is used, and both edges in the width direction Y are joined along the longitudinal direction X to form an exterior sheet having one joint. may

Also, the wearing article of the present invention may be an absorbent article other than the underpants-type disposable diaper for infants.

1 Pants-type disposable diaper (wearing article)
11 waist region 51 first elasticized region 5a first elastic member 52 second elasticized region 5b second elastic member 12 waist region 53 third elasticized region 5c waist elastic member 13 lower region 2 absorbent body 2d lower end 3 exterior Sheet 3d Lower edge 3A Abdominal sheet member (front sheet member)
3B dorsal sheet member (rear sheet member)
31 outer layer nonwoven fabric 32 inner layer nonwoven fabric 4 side seal portion WH waist opening portion LH leg opening portion

Claims (11)

A wearing article having a waist opening, a pair of leg openings, and a waist region positioned between the waist opening and the leg openings,
The wearing article comprises an absorbent body having a longitudinal direction and a width direction orthogonal to the longitudinal direction, and an exterior sheet disposed on the outer surface of the absorbent body and covering the absorbent body,
The exterior sheet is joined to a front end region and a rear end region along the longitudinal direction of the absorbent body in the waist region, and is joined to the absorbent body in a region between the front end region and the rear end region. It is in a non-bonded state,
The exterior sheet has an elasticized region in the waist region that is stretchable along the width direction of the wearing article,
In a plan view when the wearing article is placed in a flat state and in a maximum stretched state, the lower edge of the exterior sheet is at the same position as the lower end of the absorbent main body, or the lower end of the absorbent main body is at the same position. has exceeded
the pressure of the waist opening when the wearing article is worn is lower than the pressure of the elasticized region when the wearing article is worn,
The width of the elasticized region is 15 mm or more and 35 mm or less,
The wearing article, wherein the distance from the lower end of the absorbent main body to the central position of the width of the elasticized region is 100 mm or more and 200 mm or less in plan view in the maximum stretched state. A region of the exterior sheet that is located below the waist region and is not joined to the absorbent main body in a plan view when the wearing article is placed in a flat state and in a natural state. 2. The wearing article according to claim 1, wherein the width of the outer sheet gradually increases toward the bottom of the wearing article, giving the outer sheet a skirt-like appearance. the lower edge of the exterior sheet exceeds the lower edge of the absorbent body;
In a lower end region including the lower edge of the exterior sheet, the widthwise central portion of the wearing article on the front side and the widthwise central portion of the wearing article on the rear side are joined to each other,
A region of the exterior sheet that is located below the waist region and is not joined to the absorbent main body in a plan view when the wearing article is placed in a flat state and in a natural state. 2. The wearing article according to claim 1, wherein the width of the outer sheet gradually increases toward the bottom of the wearing article, and the outer sheet has a trouser-like appearance. The exterior sheet includes a front sheet member to which a front end region of the absorbent body is joined and a rear sheet member to which a rear end region of the absorbent body is joined,
The worn article has a pair of side seal portions formed by joining both side edges of the front sheet member and the rear sheet member,
The elastic regions are located between both side edges of the absorbent main body and the pair of side seal portions in the waist region of the front sheet member, and in the waist region of the back sheet member. The wearing article according to any one of claims 1 to 3, which is arranged between both side edge portions of the main body and the pair of side seal portions. The outer sheet is provided between both side edges of the absorbent body in the waist region of the front sheet member and between both side edges of the absorbent body in the waist region of the back sheet member. 5. The article of wear according to claim 4, wherein said elasticized region is absent. The elasticized regions are defined between both side edges of the absorbent body in the waist region of the front sheet member and between both side edges of the absorbent body in the waist region of the back sheet member. 5. The article of wear of claim 4 further disposed therebetween. 7. The elasticized region according to any one of claims 1 to 6, wherein the elastic region is arranged in a region that abuts on a region from the iliac crest to the anterior superior iliac spine of the wearer when the wearing article is worn. worn articles. 8. The outer sheet according to any one of claims 1 to 7, wherein a region below the waist region does not have an elasticized region that is stretchable along the width direction of the worn article. Wearing article described in. The exterior sheet further has an elasticized region that is stretchable along the width direction of the worn article in a region below the waist region, and the elasticized region in the lower region is The wearing article according to any one of claims 1 to 7, wherein the pressure when the wearing article is worn is lower than the pressure of the waist opening when the wearing article is worn. The wearing article according to any one of claims 1 to 9, wherein the elastic region has a pressure of 1.1 kPa or more and 2.5 kPa or less when the wearing article is worn. The wearing article according to any one of claims 1 to 10, wherein the waist opening has a pressure of 0.3 kPa or more and 1.5 kPa or less when the wearing article is worn.

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