TW201332526A - Disposable wearing items - Google Patents

Abstract

An object of the present invention is to provide a disposable wearing article that can be used to improve the fit to the wearer by arranging both ends of the wearing article main body in the width direction and the fixing member along the body. The disposable diaper (1) has a pair of wearing articles (2) and a pair of fixing members (40) joined to both ends in the width direction of the article body for wearing. The article body for wearing is a pair of reference creases (FL1) which are positioned further inward in the width direction than the joint portion (44) of the article body for wearing the article and the fixing member, and is folded back toward the inner side in the width direction, and the reference crease It is not formed in the fixing member but is formed only on the body of the article for wearing.

Description

Disposable wearing items

The present invention relates to a disposable wearing article having a fixing member that detachably connects a front waist region and a rear waist region of a body article for wearing.

Conventionally, a disposable disposable disposable diaper has been provided as a disposable wearing article (for example, refer to Patent Document 1). The unfolded disposable diaper of the unfolded type has a body for wearing articles having a front waist region disposed at a front waistline of a wearer and a rear waist region disposed at a rear waistline of the wearer. And a fixing member that is joined to the outer end portion in the width direction of the article body for wearing, and detachably connects the front waist region and the back waist region of the article body for wearing.

The disposable disposable diaper of Patent Document 1 is provided in a state in which the article body for unfolding of the front waist region and the back waist region is not connected by the fixing member. In this state, the fixing member is folded back toward the inner side in the width direction along both end portions in the width direction of the article body for wearing.

When the disposable disposable diaper thus constituted is worn, the folded-back fixing member is unfolded, and after the waist region of the wearer is covered by the back waist region and the front waist region of the article body for wearing, the fixing member is The rear waist area is joined to the front waist area.

[prior technical literature] [Patent Document]

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2000-140018 (Fig. 1, etc.)

However, the disposable diaper which is described in Patent Document 1 has the following problems.

Since the fixing member is folded back toward the inner side in the width direction along both end portions in the width direction of the article body for wearing, the position of both ends in the width direction of the wearing article body adjacent to the fixing member is formed to be bent along the long direction. Discounted. When the bending habit is formed at a position adjacent to both end portions in the width direction of the main body of the article to be worn, the disposable disposable diaper is attached to the wearer's state, and the fixing member and the wearing article body are oriented in the width direction. The case where the both ends are lifted from the wearer's body. Therefore, the fit is lowered, and the positional deviation of the disposable diaper may be useful, or the undesired situation in which the body fluid leaks out from the gap between the disposable diaper and the body after use may occur.

Therefore, the present invention has an object of providing a disposable wearing article for use in which the both ends of the wearing article body and the fixing member are disposed along the body to improve the fit to the wearer.

In order to solve the problem, the disposable wearing article (the disposable disposable diaper 1) of the present invention has a wearing article main body (wearing article main body 2), and the wearing article main body is provided with : configuration a liquid-permeable surface sheet (surface sheet 110) on the wear side surface of the wearer; and a liquid-impermeable back sheet (outer sheet 120) disposed on the non-skin contact surface side of the wearer; And an absorber (absorbent body 130) provided between the surface sheet and the inner sheet, and having a front waist region disposed at a front waistline of the wearer and a back waist region disposed at a rear waistline of the wearer. And a pair of fixing members (fixing members 40) that are joined to both end portions in the width direction of the wearing article body via the joint portion, and connect the front waistline region and the aforementioned in a detachable state The disposable wearing article for use in the waist region is characterized in that the wearing article main body is positioned further inward in the width direction than the joint portion (joining portion 44) of the wearing article main body and the fixing member. The pair of reference creases (reference creases FL1) are folded back toward the inner side in the width direction, and the pair of fixing members are folded in a state in which the wearing article main body is folded back based on the reference crease. The direction is divided, and the reference crease is formed not only on the fixing member but also on the wearing article body.

By folding the wearing article body with the reference crease which is located on the inner side in the width direction from the joint portion of the fixing member and the article body, the folding member can be folded and worn without forming a crease. article. Thereby, it is possible to suppress the occurrence of the bending property of the fixing member, and it is possible to make the fixing member and the outer end portion of the article body in the width direction in close contact with each other.

[Formation for carrying out the invention]

(Disposable disposable diaper of the first embodiment)

A disposable diaper as a disposable wearing article of the first embodiment will be described with reference to the drawings. In the following description of the drawings, the same or similar elements are denoted by the same or similar reference numerals. However, if the drawing is a pattern, it is necessary to pay attention to the case where the ratio of each size is different from the actual one.

For example, in the following drawings, the convenience of the description shows that there is no state in which the elastic member is stretched and contracted by the stretching force of the elastic member, but the disposable disposable diaper 1 is actually used, and the first elastic member described later is used. And the second stretchable member portion is expanded and contracted.

The specific size and the like must be judged by referring to the following instructions. Further, of course, the drawings also include a relationship between the dimensions of the mutual dimensions and the portions having different ratios. In the following description, configurations having the same operational effects are denoted by the same reference numerals, and detailed description thereof will be omitted.

Fig. 1 and Fig. 2 are plan views of the disposable disposable diaper 1 of the first embodiment. Fig. 1 shows a state in which a reference fold FL1 to be described later is a base point folded, and Fig. 2 shows an expanded state. Fig. 3 is an assembled view of the disposable disposable diaper 1 shown in Fig. 1. Fig. 4 is a cross-sectional view showing the A-A' line of the disposable disposable diaper 1. Fig. 5 is a cross-sectional view of the B-B' line of the disposable disposable diaper 1.

The disposable disposable diaper 1 comprises: a wearing article body 2; The fixing member 40. The wearing article body 2 includes an absorbent body 10, a back side flap 20, and a ventral side flap 30. The wearing article body 2 includes a front waistline region S1 disposed at a front waistline of the wearer, a rear waistline region S2 disposed at a wearer's rear waistline, and a crotch region S3 disposed at a wearer's crotch portion. .

The absorbent main body 10 of the article body 2 for wearing is a crotch region S3 that is disposed in the crotch portion of the wearer, and the rear side flap 20 is a rear waist region that is disposed on the rear waistline of the wearer, and the flank flank 30 is a front waistline region that is disposed in the front waistline of the wearer.

Further, in the embodiment of the present embodiment, the wearing article main body 2 is constituted by the absorbent main body 10, the back side flaps 20, and the front side flaps 30. However, the present invention is not limited to this configuration, and the back side flaps 20 and the ventral side flaps are not provided. 30. The absorbent main body 10 has a front waistline region S1, a rear waistline region S2, and a crotch region S3, and the absorbent article body may be constituted only by the absorbent body 10.

The absorbent body 10 has a rectangular shape. The absorbent body 10 includes a surface sheet 110 having a liquid permeability disposed on the wearer side, and an exterior sheet 120 having a liquid-impermeable back sheet disposed on the garment side, and disposed on the surface sheet 110 and the outer sheet The absorber 130 between the sheets 120; and the side sheets 141 and 142 provided on the outer side in the width direction of the absorber 130.

The surface sheet 110 is not particularly limited as long as it is a sheet-like material having a liquid-permeable structure such as a non-woven fabric, a woven fabric, a perforated plastic sheet, or a mesh sheet. Any of natural fiber and chemical fiber can be used as the material of the woven fabric or the non-woven fabric.

Examples of the natural fiber include pulverized cellulose such as pulp or cotton. Examples of the chemical fiber include regenerated cellulose such as hydrazine and fibrillated hydrazine; semi-synthetic cellulose such as acetate or triacetate; thermoplastic hydrophobic chemical fibers; or heat applied by hydrophilization treatment. Plasticity hydrophobic chemical fiber, etc. Examples of the thermoplastic hydrophobic chemical fiber include single fibers such as polyethylene (PE), polypropylene (PP), and polyethylene terephthalate (PET); and graft polymerized polyethylene and polypropylene. Fiber; composite fiber such as core sheath structure. For example, the surface sheet 110 is a dot-bonded nonwoven fabric having a basis weight of 23 g/m ² .

As a method of forming a non-woven fabric, a dry type (carding method, spunbonding method, melt blowing method, air flow molding method, etc.) and a wet method can be used. In the dry method and the wet method, a plurality of methods can also be combined. Further, methods such as thermal bonding, needle punching, and chemical bonding can be mentioned. The method of forming a non-woven fabric does not limit the above method.

The exterior sheet 120 has a back surface non-woven fabric 121 that is in contact with the clothes, and a liquid-impermeable film (hereinafter referred to as a back film) 122 that is located on the skin side of the back surface non-woven fabric 121. The back film 122 is formed of a moisture permeable or moisture impermeable film. The back nonwoven fabric 121 is a hydrophobic nonwoven fabric composed of an SMS non-woven fabric (a composite nonwoven fabric of a spunbonded nonwoven fabric and a melt-blown nonwoven fabric), a spunbonded nonwoven fabric, and a dot-bonded nonwoven fabric. The back nonwoven fabric 121 and the back film 122 are joined by a hot melt type adhesive (hereinafter referred to as HMA). For example, the back film 122 is a non-air permeable film having a basis weight of 16 g/m ² , and the back surface non-woven fabric 121 is an SMS non-woven fabric having a basis weight of 13 g/m ² .

The absorbent body 130 has: an absorbent core 131 that absorbs liquid; and an absorbent sheet 132. The absorbent core 131 includes a hydrophilic fiber and a superabsorbent polymer. As an example of the hydrophilic fiber, cellulose such as pulverized pulp or cotton; regenerated cellulose such as hydrazine or fibrillated fluorene; semi-synthetic cellulose such as acetate or triacetate; and particulate form may be used singly or in combination. a polymer, a fibrous polymer, a thermoplastic hydrophobic chemical fiber, or a thermoplastic thermoplastic chemical fiber to which a hydrophilization treatment is applied. Among these, in consideration of the low cost and the ease of forming the absorbent body, it is preferred to use the pulverized pulp. It is also possible to use a hydrophilic fiber mixed with a polymer absorber.

The absorbent core 131 is wrapped by an absorbent sheet 132. In the present embodiment, the absorbent sheet 132 is a thin paper. The absorber 130 is bonded to the surface of the back sheet film 122 by HMA or the like in a state of being wrapped around the surface sheet 110.

The side sheets 141, 142 are disposed on both sides in the width direction of the surface sheet 110. The side sheets 141 and 142 are joined to the back surface non-woven fabric 121 on the outer side in the width direction of the back surface film 122. A first stretchable member to be described later is disposed between the side sheets 141 and 142 and the back surface nonwoven fabric 121.

The side sheets 141, 142 can be selected, for example, from the same material as the outer sheet 120. However, it is preferable to prevent hydrophobicity or water repellency in order to prevent excrement such as urine and feces from flowing over the lateral direction of the disposable diaper 1 after the side sheets 141 and 142 are used.

The back side flaps 20 and the ventral side flaps 30 are joined to both ends in the longitudinal direction of the absorbent body 10, respectively. The back side flaps 20 are at least installed in the absorbent The end region 10A of the body 10 in the longitudinal direction L. The dorsal side flaps 20 are longer than the width of the absorbent body 10 and cover the end regions 10A.

The ventral side flaps 30 are other end regions 10B that are mounted in the longitudinal direction of the absorbent body 10. The ventral side flaps 30 are longer than the width of the absorbent body 10 and cover the end regions 10B.

The dorsal side flaps 20 and the ventral side flaps 30 are formed of a hydrophobic nonwoven fabric, a moisture permeable or moisture impermeable film, or a composite sheet of a hydrophobic nonwoven fabric and a moisture permeable or moisture impermeable film. A film mainly composed of polyethylene, polypropylene or the like; a resin film having air permeability; a sheet of a breathable resin film bonded to a nonwoven fabric such as spunbond or spunlace, or the like can be used.

The back side flaps 20 and the front side flaps 30 of the embodiment of the present invention are formed of an SMS non-woven fabric having a basis weight of 15 g/m ² , and at least the outer ends of the wide ends of the back side flaps 20 in the width direction are The base point is folded back toward the inside in the width direction, and the two sheets overlap.

The fixing member 40 is joined to the back side flap 20 via the joint portion 44. The fixing member 40 is mounted at the free ends 20A, 20B of the both end portions in the width direction of the back side flaps 20. The joint portion 44 is coated with an adhesive such as a hot-melt adhesive, and joins the back side flap 20 and the fixing member 40.

A locking portion 43 that locks the fixing member 40 is provided on the garment abutting surface side of the end portion 10B of the absorbent body 10. The fixing member 40 is a male member of a so-called flat fastener, and the locking portion 43 is a female member.

The fixing member 40 is joined to the back side flap 20 via the joint portion 44, and has a sheet-like base end portion 40a extending outward in the width direction; The hook-shaped hook portion 40b of the locking portion 43 is detachably locked to the base end portion 40a. The outer end portion in the width direction of the proximal end portion 40a is an extended portion 40c that extends outward in the width direction from the hook portion 40b.

The material of the fixing member 40 is, for example, PPSB (polypropylene spunbonded nonwoven fabric), and for example, PPSB having a basis weight of 80 g/m ² is preferably used. It is desirable that the basis weight of the hook portion is 100 g/m ² .

The locking portion 43 of the locking fixing member 40 is a non-woven fabric or a woven fabric in which the hooks are engageable. As the fibrous material constituting the nonwoven fabric, a composite fiber having a core-sheath structure can be used. The core component/sheath component used as the fiber material is, for example, PP (polypropylene) / PE (polyethylene), PP / low melting point PP, PET (polyethylene terephthalate) / low melting point PET, PET /PE combination. Fibers such as polyamide, acrylic, urethane, and cotton such as ruthenium, PET, PP, and nylon may be mixed in the fiber material. For example, the base member has a basis weight of 38 g/m ² .

A plurality of stretchable members are disposed in the elongated direction of the absorbent body 10 along the longitudinal direction L of the absorbent body 130. The stretchable member has first stretchable members 123a, 123b, 124a, and 124b that form leg gathers formed in the wearer's leg circumference, and a leakage preventing wall that is disposed on the wearer's intercondylar portion. 2 stretchable members 123c, 124c.

The first elastic members 123a, 123b, 124a, and 124b are stretched in the longitudinal direction L of the absorbent body 10, and joined to the back surface of the back surface film 122 in the outer side in the width direction via a backing material such as HMA. The surface of the non-woven fabric 121 on the skin contact surface side is between the non-skin contact surface side of the side sheets 141 and 142.

The second elastic members 123c and 124c are disposed on the inner side in the longitudinal direction of the back side flaps 20 and the front side flaps 30, and constitute a leakage preventing wall. The second stretchable members 123c and 124c are attached to the side sheets 141 and 142 in a state in which they are elongated in the longitudinal direction L. The side sheets 141 and 142 are folded back toward the inside in the width direction, and the second stretchable members 123c and 124c are wound around the inner end. By providing the leakage preventing wall, it is possible to prevent the excrement discharged from the wearer from running out of the side sheets 141, 142 to the outside in the width direction.

The first elastic members 123a, 123b, 124a, and 124b of the embodiment of the present embodiment are rubbers having a diameter of 620 dtex. The rubber was placed in a state of being stretched 2.2 times. Moreover, the second elastic members 123c and 124c of the embodiment of the present embodiment are rubbers having a diameter of 620 dtex. The rubber was placed in a state of being stretched 2.5 times.

When the disposable disposable diaper 1 configured as described above is worn, the absorbent body 130 of the absorbent main body 10 is brought into contact with the wearer's strands, and the ventral side flaps 30 are brought into contact with the wearer's stomach. Next, the fixing members 40 attached to both sides in the width direction of the back side flaps 20 are fixed to the locking portions 43 of the abdominal side flaps 30.

In addition, the disposable disposable diaper 1 in the state before use is folded back toward the inside in the width direction with respect to the pair of reference folds FL1 along the longitudinal direction L. FIG. 1 is a state in which the reference crease FL1 is folded back, and FIG. 2 is a state in which the reference crease FL1 is not folded back, that is, in an unfolded state. The disposable disposable diaper 1 is folded on the basis of the reference crease FL1, and the skin contact surface side of the back side flap 20 is wound inside.

The reference crease FL1 is positioned further inward in the width direction than the fixing member 40. The reference crease FL1 does not overlap the fixing member 40 in the thickness direction T of the disposable diaper 1 but overlaps the back side flap 20 and the ventral side flap 30 constituting the wearing article main body 2. Therefore, the bending habit formed by the reference crease FL1 is not formed in the fixing member 40, but is formed only on the back side flap 20 and the ventral side flap 30.

The fixing member 40 is generally more rigid than the back side flap 20 that directly contacts the skin, and is susceptible to residual bending habits. For example, when the fixing member 40 has a bending habit, the disposable disposable diaper may be used to float from the wearer's body when the disposable diaper is worn. However, since the fixing member 40 does not form a bending habit, the fixing member 40 is prevented from floating up from the body due to the bending habit, and the disposable disposable diaper 1 can be disposed along the body, and the body and the use can be reduced. The gap of the disposable disposable diaper. Therefore, it is possible to suppress the fact that the fixing member floats against the skin, or the fixing member does not come into contact with the locking portion, and the diaper is undesirably displaced.

In addition, for example, when the fixing member 40 is formed with a bending habit, it may be difficult to maintain the unfolded state due to the bending habit during deployment at the time of wearing or the like, and there is a problem that installation is difficult. However, since the bending habit of the fixing member is not easily left, the recovery due to the bending habit can be prevented, and the mountability can be improved.

In addition, the hook portion 40b of the fixing member 40 is folded and opposed to the back side flap 20 so that the skin contact surface side of the back side flap 20 is folded inwardly with the reference fold line FL1 as a base point. Therefore, it is possible to prevent the hook portion 40b from being exposed to the outside.

In addition, disposable disposable diapers 1 are based on the skin abutting side. Since the inner side is folded back, the wearing article body 2 is deformed in the direction toward the wearer side by the bending habit formed by the reference crease FL1. Therefore, the wearing article body 2 is easily attached to the wearer's body along the curve of the wearer's body.

Further, the reference crease FL1 is preferably located inward in the width direction than the fixing member 40, and is preferably disposed in the vicinity of the fixing member 40. By folding back the back side flaps 20 at the proximal edge of the fixing member, the bending habit formed by the reference folds FL1 can be formed in the back side flaps 20 in the vicinity of the most violent groin portion of the legs. With such a bending habit, the dorsal flanks 20 become easier to follow the skin, and the dorsal flanks 20 can be arranged along the curve of the body.

For example, when the fixing member 40 is too separated from the reference crease FL1, in the vicinity of the most violent groin portion of the leg, since the bending habit is not formed, the followability to the body is lacking, and the fit is lowered. consider. From such a viewpoint, it is preferable that the distance between the fixing member and the reference crease FL1 in the width direction is 0 mm to 20 mm.

The fixing member 40 is joined to the non-skin contact surface side of the wearing article body. For example, when the fixing member is joined to the skin contact surface side of the wearing article body, the fixing member comes into contact with the skin, and there is a concern that the skin is irritated. However, since the fixing member is joined to the non-skin contact surface side of the wearing article main body, the fixing member 40 having a higher rigidity than the back side flap 20 can be separated from the skin, and the fixing member 40 is less likely to contact the wearer's skin.

In addition, a portion extending toward both ends in the width direction of the absorber 130 of the back side flap 20 has a structure in which both end portions in the width direction are folded inward in the width direction to form two sheets. Therefore, the skin is protected by the back side flaps 20, It inhibits the direct contact of the fixing member 40 with the skin, thereby effectively reducing the irritation to the skin.

The pair of fixing members 40 are in a state in which the disposable diaper 1 is folded after the reference crease FL1 is used as a base point, and are disposed apart from each other in the width direction. The fixing member 40 is easily conspicuous as compared with the configuration in which the fixing member 40 is coupled. Further, when the fixing member 40 is held during use, the wearer can easily hold the fixing member.

Further, it is preferable that the rigidity of the back side flap 20 is lower than the rigidity of the fixing member 40. By setting the rigidity of the back side flap 20 to be lower than the rigidity of the fixing member 40, even if the back side flap 20 is provided with a bending habit by the reference crease, the back side flap 20 does not remain stubbornly bent. It can reduce the irritation to the skin caused by hard wrinkles, and can reduce the gap between the skin and the dorsal flanks due to the three-dimensional wrinkles.

Further, it is preferable that the back side flaps 20 are formed with relatively weak moderate wrinkles. When the back side flaps 20 and the ventral side flaps 30 are formed with appropriate wrinkles, the adhesion of the back side flaps 20 and the like to the body is improved in the vicinity of the most vigorous groin portion of the legs, and the back side flaps can be slid along the body. The curve fits.

Further, in a state where the reference crease is folded back as a base point, the distance X1 (see FIG. 1) between the fixing member and the absorber is preferably 5 mm or more. When the distance X1 between the fixing member and the absorber is less than 5 mm, there is a concern that the fixing member forms a crease due to the positional deviation in the manufacturing process.

Further, in the disposable disposable diaper of the embodiment of the present embodiment, the back side flaps 20 and the ventral side flaps 30 are formed by other materials different from the absorbent body. The back side flaps 20 and the ventral side flaps 30 are disposable diapers The entire sheet in the width direction of 1 is formed. The back side flaps 20 and the like that extend toward the both outer sides in the width direction of the absorbent body 10 are folded into two layers.

In this way, the absorbent body 10, the back side flaps 20, and the front side flaps 30 are formed by other materials, whereby the texture of the back side flaps can be ensured while the texture is improved. Specifically, the central portion of the back side flap 20 and the like which are formed by softly constituting the buttocks and the abdomen, the two ends of the back side flaps 20 such as the back side flaps 20 of the joint fixing member may be formed with high rigidity.

(Manufacturing method of disposable disposable diapers)

Next, an example of a method of manufacturing the disposable disposable diaper 1 will be described with reference to Fig. 6 . Further, as for the method not described in the embodiment of the present embodiment, the original method can be used. Moreover, the manufacturing method demonstrated below is an example, and it can manufacture by another manufacturing method. The manufacturing method of the disposable disposable diaper 1 includes: a first folding project S10; a second folding project S20; a fixing member pasting project S30; a first cutting project S40; an absorbent body forming project S50; and a flap bonding project S60 And the second cutting project S70.

In the first folding process S10, both end portions of the continuous side flaps W10 constituting the back side flaps 20 and the front side flaps 30 are joined to the center side in the width direction and joined. Thereby, at the both end portions of the side flap W10, the overlapping portion in which the plurality of flaps W10 overlap is formed. The overlapping portions are, for example, free ends 20A, 20B constituting the back side flaps 20.

In the second folding work S20, the side flap W10 folded by the first folding work S10 is folded back toward the inside in the width direction with the reference fold FL1 as a base point. Both ends of the width direction. Further, for example, in a state where the reference fold crease FL1 is folded back toward the inside in the width direction, the folded portion may be pressed along the reference crease FL1. By bending along the reference crease FL1, a bending habit occurs in the reference crease FL1, and the folded portion can be prevented from being unfolded during transportation.

In the fixing member pasting process S30, the fixing member 40 is adhered to the back side flap 20 which is folded back based on the reference fold FL1. Further, the fixing member 40 is then configured to constitute a hook that previously constitutes the hook portion 40b.

In the first cutting process S40, the flap sheet W10 to which the fixing member 40 is joined is cut at predetermined intervals along the intersecting direction CD orthogonal to the conveying direction MD. The cut piece P is an integrated back side flap 20 and a ventral side flap 30.

In the absorbent body forming process S50, a continuum of the absorbent body is formed. First, as shown in FIG. 6(b), after the back surface film 122 is placed on the continuous back surface non-woven fabric sheet W121 which constitutes the back surface nonwoven fabric 121, a leg-surrounding elastic material constituting the leg gathers is provided on the outer side in the width direction of the back surface film. Next, the absorber 130 to which the surface sheet 110 is pasted is disposed on the back film 122, and the joined side sheets 141 and 142 cover both sides in the width direction of the absorber. Through the above works, a continuous continuous body of the absorbent body 10 is manufactured.

In the flap bonding process S60, the cut piece P in which the back side flap 20 and the ventral side flap are integrated is adhered to the continuous body of the absorbent body 10.

In the second cutting work S70, the continuous body of the absorbent body to which the cut piece P is adhered is cut along the intersecting direction. The cut piece P is on the ventral side of a product The side flaps 30 are separated from the back side flaps 20 of the product to which a product is attached. By the above work, the disposable disposable diaper 1 is completed.

The disposable disposable diaper thus manufactured is, for example, a package that can be accommodated in a storage bag or the like by being laminated with other disposable disposable diapers in a folded state. Specifically, as shown in FIG. 7, the disposable diaper can be folded as a base point along the crease in the long direction and the crease in the width direction. Figure 7 is a pattern showing the folded state of the disposable disposable diaper.

Fig. 7 (a) shows a disposable disposable diaper 1 manufactured by the above-described manufacturing method. Both ends of the back side flap 20 and the front side flap 30 in the width direction are folded back toward the inside in the width direction with the reference fold FL1 as a base point. Next, the state shown in FIG. 7(b) is formed by folding the wide crease FLW1 along the width direction W as a base point in the longitudinal direction L. In a state in which the wide crease FW1 is folded as a base point, the creases of the fixing member 41 are not overlapped, and the bending habit is not formed.

However, since the wide-direction crease FW1 is disposed so as to overlap the absorbent body 130 in the thickness direction, the folding body FF1 is folded with the wide crease FW1 as a base point, and the absorbent body 130 is formed with a bending habit. The disposable disposable diaper is easily maintained in a folded state by the relatively strong bending habit formed in the absorbent body 130.

(Second embodiment)

Next, the disposable disposable diaper 1A of the second embodiment will be described with reference to Figs. In the following description of the embodiments, only the description will be given. The same configurations as those of the first embodiment are denoted by the same reference numerals and the description thereof will not be repeated.

The wearing article body 2 of the disposable disposable diaper 1A is folded back toward the inside in the width direction with the reference crease FL1 as a base point, and the inner crease FL2 which is located further inward in the width direction than the reference crease FL1 is used as a base point. Further, it is folded back toward the inner side in the width direction. Fig. 8(a) shows a state before the inner fold crease FL2 is used as a base point, and (b) a state after the inner fold crease FL2 is used as a base point. Fig. 9 is a cross-sectional view taken along line C-C of Fig. 8(b).

In the state in which the inner crease FL2 is folded back to the wearing article main body by the reference crease FL1, the inner crease FL2 is positioned further inward in the width direction than the fixing member 40, and is positioned further outward in the width direction than the absorbent body 130. Since the inner crease is positioned further inward in the width direction than the fixing member 40 in the state in which the reference crease FL1 is folded back, the bending behavior due to the inner crease FL2 is not formed in the fixing member 40. That is, the bending habit formed by the reference fold FL1 and the bending habit formed by the inner fold FL2 are not formed in the fixing member 40.

Therefore, even if the folding is performed plural times by the reference crease FL1 and the inner crease FL2, the lifting of the fixing member 40 can be suppressed similarly to the disposable disposable diaper of the first embodiment, and the wearer can be attached. Synergy improvement.

In addition, after the disposable disposable diaper 1 is folded back toward the inside with the skin contact surface side, the fixing member is folded inside, so that the wearing article main body 2 is defined by the reference crease FL1 and the inner crease FL2. The bending habit is deformed toward the wearer's side. Therefore, the wearing article body 2 can be disposed along the wearer's body curve, and the wearing article body 2 can be attached to the wearer's body.

The method for producing an absorbent article according to the second embodiment can be produced, for example, by the work shown in Fig. 10 . In addition, the items S10 to S60 are the same as those of the above-described first embodiment, and description thereof will be omitted. In the method of manufacturing the disposable disposable diaper according to the second embodiment, after the blade bonding process S60, the third folding process S65 is performed before the second cutting process S70.

The third folding project S65 is a continuous body in which the absorbent body of the cut piece P is folded back with the inner fold FL2 as a base point. Then, the continuum of the absorbent body is cut along the intersecting direction by the second cutting process S70, thereby completing the disposable disposable diaper 1 which is folded with the reference crease and the inner crease as the base points.

According to the disposable disposable diaper 1 thus formed, it is possible to fold smallly without forming a fold in the fixing member 40. Moreover, by folding back the widthwise end portions of the disposable disposable diaper a plurality of times, the rigidity of the outer end portion in the width direction of the disposable disposable diaper in the folded state can be raised, and the folding can be folded. The shape is maintained in a stable state. It is easy to put into packaging, and it can maintain the morphological stability of the input package.

(Third embodiment)

Next, the disposable disposable diaper 1B of the third embodiment will be described with reference to Fig. 11 . In the disposable disposable diaper 1B of the third embodiment, the inner crease FL2 is formed in the extended portion 40c of the fixing member 40. In the state of the disposable diaper 1B of the third embodiment, the folded diaper 1B is used as a base point, and the folded-back portion of the inner crease FL2 is used as a base point. (a) is a top view, (b) is shown in (a) D-D cross-sectional view.

The inner crease FL2 is formed in the extended portion 40c of the fixing member 40, and the end portion of the extended portion 40c is lifted by the bending habit formed by the inner crease. Therefore, the extended portion 40c of the fixing member 40 is easily conspicuous, and the wearer or the like can easily find the fixing member. Furthermore, since the extended portion of the fixing member floats, it is easy to grasp the fixing member.

(Fourth embodiment)

Next, the disposable disposable diaper 1C of the fourth embodiment will be described with reference to Figs. 12 and 13 . In the disposable disposable diaper 1C of the fourth embodiment, the reference crease FL1 is formed so as to overlap the fixing member 40 on the outer side in the width direction of the joint portion 44 of the fixing member 40 and the back side flap 20 .

Fig. 12 is an enlarged plan view showing a portion of the disposable disposable diaper 1C of the fourth embodiment. (a) is a state before the folding back based on the reference crease FL1, and (b) is a state in which the reference crease FL1 is the base point folded back. Figure 13 is a cross-sectional view taken along line E-E of Figure 12(b).

When the disposable crease is used as the basis for folding back the disposable diaper, the wearing article main body 2 such as the back side flap 20 in the disposable diaper is folded back based on the reference crease FL2. At this time, the fixing member 40 is joined to the back side flap 20 via the joint portion 44, and the following joint portion 44 is folded back together with the back side flap 20 with the reference fold FL1 as a base point.

Even in the thickness direction T of the disposable diaper after use, when the fixing member 40 overlaps with the reference crease FL1, when the reference crease does not overlap the joint portion, the crease is not formed in the fixing member 40. Therefore, at the fixing member 40 It does not form a bending habit, and the disposable disposable diaper 1 can be folded.

(Other embodiments)

The above description of the present invention is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various forms, embodiments, and operational techniques are available instead.

In the present embodiment, the disposable disposable diaper 1 in which the back side flaps 20 and the front side flaps 30 are attached to the absorbent main body 10 will be described. However, the form of the disposable disposable diaper is not limited to this embodiment.

For example, the integrated waistband area corresponding to the waist of the wearer; and the underarm area corresponding to the lower part of the crotch, may also be an unfolded disposable diaper formed by hollowing out the opening of the wearer's leg. It may or may not have a ventral side flap. The disposable disposable diaper 1 may be any of infants, infants, and adults.

The back side flap and the front side flap of the embodiment of the present embodiment are disposed so as not to overlap with the entire absorbent main body in the width direction. For example, the side flap is prepared as a left and right individual component, and the end portion 10A of the absorbent main body is 10B can also be constructed without being completely covered by the dorsal flanks and the ventral flanks.

As described above, the present invention naturally includes various embodiments and the like which are not described herein. Therefore, the technical scope of the present invention is determined only by the specific matters of the invention from the scope of the patent application described above.

[Examples]

In the examples and the comparative examples, the bending rigidity and the bending recovery property using the bending characteristics of the fixing member and the side flap as indexes were measured, and the appropriateness of the fixing member and the side members as the respective materials was evaluated. Moreover, the invention is not limited by the terms.

Using the materials of the first and second embodiments and the materials of the comparative example 1 and the comparative example 2, the bending rigidity and the bending recovery property using the bending property as an index were measured, and the appropriateness of the fixing member as each material was evaluated. The evaluation of the suitability in the fixing member was evaluated by hardness and difficulty in offset.

"○" is indicated when there is no uncomfortable hardness in contact with the wearer's skin, and "X" is indicated when there is a possibility of discomfort. When used as a fixing member, "○" is indicated when there is no offset between the back side flap and the front side flap, and "X" is displayed when the offset occurs.

Moreover, the materials of the third and fourth examples and the materials of the comparative example 3 and the comparative example 4 were used, and the bending rigidity and the bending recovery property with the bending property as an index were measured, and the appropriateness as the side flap of each material was evaluated. Evaluation of the suitability of the flanks was performed by hardness and hard breakage.

"○" is indicated when there is no uncomfortable hardness in contact with the wearer's skin, and "X" is indicated when there is a possibility of discomfort. When the back side flap is used, the time is "○", and when it is broken, it is "X".

(Measurement method of bending rigidity and bending recovery)

The bending rigidity and the bending recovery are measured by the KES method. measuring The machine is using KES FB-2. First, a sample of 100 mm in length × 30 mm in width of each material was collected. The collection is performed in the direction of the conveyance direction in the manufacturing process of the material, and the horizontal direction is taken along the intersecting direction orthogonal to the conveyance direction. After the zeroing of the measuring machine is performed, the sample is set to be bent perpendicularly to the longitudinal direction, and measurement is started. The value of B-2HB displayed on the screen of the measuring machine is recorded. Next, the sample is set so as to be bent perpendicularly to the lateral direction, and measurement is started. The value of B-2HB displayed on the screen of the recording measuring machine.

The bending rigidity is calculated by the equation shown by the number 1.

(measurement result)

The measurement results are shown in Table 1. Further, in the present embodiment, the third decimal place of the measured value is rounded off and expressed as the second digit below the decimal point.

The material of Comparative Example 1 was a laminate of both sides of a polypropylene spunbonded nonwoven fabric having a basis weight of 80 g/cm ² . Bending rigidity and bending recovery are the highest among the four materials. Because the materials are hard, they are evaluated as not suitable as fixing members.

The material of Comparative Example 2 was a polypropylene spunbonded nonwoven fabric having a basis weight of 30 g/cm ² . Bending rigidity and bending recovery are among the lowest among the four materials. Since the material is soft and offset, the evaluation is not suitable as a fixing member.

The material of Example 1 was a polypropylene spunbonded nonwoven fabric having a basis weight of 80 g/cm ² . It was evaluated as a fixing member in terms of hardness and difficulty in offset.

The material of Example 2 was a polypropylene spunbonded nonwoven fabric having a basis weight of 60 g/cm ² . It was evaluated as a fixing member in terms of hardness and difficulty in offset.

According to the above results, the bending rigidity of the fixing member is ideal in the range of 0.56 × 10 ^-4 Nm / m to 0.68 × 10 ^-4 Nm / m, and the bending recovery of the fixing member is 0.52 × 10 ^-2 Nm / m - 0.74 The range of ×10 ^-2 Nm/m is ideal.

The material of Comparative Example 3 was a polypropylene spunbonded nonwoven fabric having a basis weight of 60 g/cm ² . Bending rigidity and bending recovery are the highest among the four materials. Because the materials are hard, the evaluation is not suitable as the dorsal flanks.

The material of Comparative Example 4 was an SMS nonwoven fabric having a basis weight of 15 g/cm ² . Bending rigidity and bending recovery are among the lowest among the four materials. Because the material is soft and broken, it is evaluated as not suitable as the back side flap.

The material of Example 3 was a polypropylene spunbonded nonwoven fabric having a basis weight of 30 g/cm ² . It was evaluated as suitable as a back side flank in terms of hardness and difficulty in breaking.

The material of Example 4 was an overlap of two pieces of basis weight 15 g/cm ² SMS non-woven fabric. It is evaluated as a back side flank in terms of hardness and difficulty in offset.

According to the above results, the bending rigidity of the back side flap is preferably 0.07 × 10 ^-4 Nm/m, and the bending recovery of the back side flap is preferably in the range of 0.07 × 10 ^-2 to 0.08 × 10 ^-2 Nm/m.

When the bending rigidity and the bending recovery property of the back side flank are in the above range, an appropriate pleat is formed on the back side flank, and the adhesion of the back side flank is improved in the vicinity of the most sturdy squirrel portion of the leg, and the back can be made The side flaps are attached along the curve of the body. By keeping the back side flaps in close contact, the retention of the waist circumference can be improved.

When the bending rigidity of the side flap is less than 0.07 × 10 ^-4 or the bending recovery is less than 0.07 × 10 ^-2 , the strength of the side flap is insufficient, and the diaper is broken at the time of installation, and the side flap may be curled in the mounted state.

On the other hand, when the bending rigidity of the side flap is larger than 0.07×10 ^-4 or the bending recovery is larger than 0.08×10 ^-2 , wrinkles are formed due to the bending habit when the reference crease FL1 or the like is used as the base point. The stimulus will have stronger concerns. Further, since the gap between the wearer and the disposable disposable diaper is formed by the bending habit, there is a concern that the fit is lowered.

1‧‧‧Disposable disposable diapers

2‧‧‧ wearing article body

10‧‧‧Absorbable ontology

10A, 10B‧‧‧ end area

13, 14‧‧‧ leg folds

15, 16‧‧‧ leak-proof wall

20‧‧‧ Back side flanks

20A, 20B‧‧‧Free end

30‧‧‧ Ventral flanks

40‧‧‧Fixed components

40a‧‧‧ base end

40b‧‧‧ hook

40c‧‧‧Exit

43‧‧‧Cards

44‧‧‧ joints

110‧‧‧Surface

120‧‧‧Outer sheets

121‧‧‧ Back non-woven

122‧‧‧Back film

123a, 123b, 124a, 124b‧‧‧1st flexible member

123c, 124c‧‧‧2nd flexible member

130‧‧‧ absorber

131‧‧‧Absorbent core

132‧‧‧Absorbable flakes

141, 142‧‧‧ side flakes

FL1‧‧‧ benchmark crease

FL2‧‧‧ inside crease

P‧‧‧ cut pieces

Fig. 1 is a plan view showing a folded state of the disposable disposable diaper of the first embodiment.

Fig. 2 is a plan view showing the unfolded state of the disposable disposable diaper of Fig. 1.

Fig. 3 is an assembled view of the disposable disposable diaper shown in Fig. 1.

Fig. 4 is a cross-sectional view taken along line A-A' of Fig. 1.

Fig. 5 is a cross-sectional view taken along line B-B' of Fig. 1.

Fig. 6 is a plan view showing a manufacturing process of the disposable disposable diaper of the first embodiment.

Fig. 7 is a view showing a folded state of the disposable disposable diaper of the first embodiment.

Fig. 8 is an enlarged plan view showing a portion of the disposable disposable diaper of the second embodiment. (a) is a state in which the reference crease is folded as a base point, and (b) is a state in which the inner crease is folded as a base point.

Fig. 9 is a cross-sectional view taken along line C-C' of Fig. 8(b).

Fig. 10 is a plan view showing a manufacturing process of the disposable disposable diaper according to the second embodiment.

Fig. 11 is a plan view showing a portion of the disposable disposable diaper according to the third embodiment, in which a reference crease is folded as a base point, and (b) is a D-D' of (a). A cross-sectional view of the line.

Fig. 12 is an enlarged plan view showing a portion of the disposable disposable diaper of the fourth embodiment. (a) is a state in which the reference crease is folded as a base point, and (b) is a state in which the inner crease is folded as a base point.

Fig. 13 is a cross-sectional view taken along line E-E' of Fig. 12(b).

1‧‧‧Disposable disposable diapers

FL1‧‧‧ benchmark crease

40‧‧‧Fixed components

40a‧‧‧ base end

20B‧‧‧Free end

40c‧‧‧Exit

10A‧‧‧End area

20‧‧‧ Back side flanks

20A‧‧‧Free end

44‧‧‧ joints

40b‧‧‧ hook

10‧‧‧Absorbable ontology

123c‧‧‧2nd flexible member

130‧‧‧ absorber

123a‧‧‧1st flexible member

124a‧‧‧1st flexible member

123b‧‧‧1st flexible member

124b‧‧‧1st flexible member

124c‧‧‧2nd flexible member

43‧‧‧Cards

10B‧‧‧End area

30‧‧‧ Ventral flanks

2‧‧‧ wearing article body

Claims (6)

A disposable wearing article, comprising: a wearing article body having a liquid permeable surface sheet disposed on a wearer's skin contact surface side; and being disposed on a wearer's a liquid-impermeable back sheet on the non-skin contact surface side; and an absorber disposed between the surface sheet and the back sheet, and having a front waist region disposed in a front waistline of the wearer and disposed in the wearer a rear waist region of the back waist of the user; and a pair of fixing members that are joined to both end portions in the width direction of the wearing article body via the joint portion, and are coupled to the front portion in a wearable state a disposable wearing article for the waist region and the waist region, wherein the wearing article main body is a pair of reference creases that are located on the inner side in the width direction of the joint portion between the wearing article main body and the fixing member. The pair of fixing members are in the state in which the base member is folded back toward the inner side in the width direction, and the wearing article main body is folded back with the reference crease as a base point. Direction is separately arranged, the reference is not fold formed in the fixing member is formed only in the body of the wearing article. The disposable wearing article according to the first aspect of the invention, wherein the article for wearing the article is folded back toward the inner side in the width direction with the reference crease as a base point, and is more than the reference crease. The inner crease located on the inner side in the width direction is further folded back toward the inner side in the width direction. In the inner crease, the wearing article body is folded back in the width direction from the fixing member in a state where the wearing article body is folded back by the reference crease, and is positioned further outward than the absorbent body in the width direction. The disposable wearing article according to the first aspect of the invention, wherein the fixing member includes: a hook portion that is detachably locked to the body of the wearing article; and a width direction of the hook portion In the extended portion on the outer side, the article for wearing the article is folded back toward the inner side in the width direction with the reference crease as a base point, and the inner crease is wider toward the inner side than the reference crease. The inner side of the direction is further folded back, and the inner side fold is formed in the extended portion. The disposable wearing article according to the second or third aspect of the invention, wherein the wearing article body is folded back based on the reference crease, and the skin of the wearing article body is brought into contact with The joint side is inside, and is folded back based on the inner fold, and the fixing member is wound inside. The disposable wearing article according to any one of claims 1 to 4, wherein the fixing member is joined to a non-skin contact surface side of the wearing article body. A disposable wearing article comprising: a wearing article body having a liquid permeable surface sheet disposed on a wearer's skin contact surface side; and being disposed on the wearer a liquid impermeable inner sheet on the non-skin contact surface side; and an absorber disposed between the surface sheet and the inner sheet, and having: disposed on the wearer a front waistline region of the front waistline and a rear waistline region disposed at a rear waistline of the wearer; and a pair of fixing members joined to both ends in the width direction of the wearing article body via the joint portion And the disposable wearing article for connecting the front waistline region and the waist region in a state in which the wearable article is attached to the wearable article body and the fixing member. The pair of reference creases on the inner side in the width direction of the joint portion are folded back toward the inner side in the width direction as the base point, and are folded in the longitudinal direction with the wide crease extending in the width direction as a base point, and the fixing member is the aforementioned width The crease is disposed between the pair of reference creases in a state in which the creases are folded.