WO2023042437A1

WO2023042437A1 - Connection-type disposable wearable article

Info

Publication number: WO2023042437A1
Application number: PCT/JP2022/010692
Authority: WO
Inventors: 有一山下
Original assignee: 大王製紙株式会社
Priority date: 2021-09-15
Filing date: 2022-03-10
Publication date: 2023-03-23
Also published as: JP2023042889A; JP7453189B2; TW202312955A

Abstract

[Problem] To improve leak prevention without compromising breathability through a gap between adjacent folds. [Solution] The above problem is solved by a connecting-type disposable wearable article having an elastic waist member 71 and a stretching waist region 79 contracted in the width direction WD together with a first sheet layer 73 and a second sheet layer 74 sandwiching the elastic waist member 71, the stretching waist region 79 being stretchable in the width direction WD, wherein joining parts 75 of the first sheet layer 73 and the second sheet layer 74, the joining parts 75 being continuously or intermittently provided so as to linearly continue from a more frontward side than the stretching waist region 79 to a more rearward side than the stretching waist region 79, and non-joining parts 77 of the first sheet layer 73 and the second sheet layer 74, the non-joining parts 77 being continuous in an elongated state from a more frontward side than the stretching waist region 79 to a more rearward side than the waist stretching region 79, are provided so as to alternately repeat in the width direction WD, and wherein at least one non-joining part 77 has an inclined part 72 extending so that the edges on both sides thereof have an inclination angle θ of 5-45 degrees with respect to the front-rear direction.

Description

Articulated disposable wearing article

The present invention relates to a connected disposable wearing article such as a tape-type disposable diaper.

A typical connectable disposable wearing article has a crotch portion including the center in the front-rear direction, an abdominal portion extending forward from the center in the front-rear direction, and a back portion extending rearward from the center in the front-rear direction. has wing portions extending from the crotch portion to the left and right sides in the width direction. Further, the wing portion has a connecting portion that is detachably connected to the outer surface of the ventral portion, and the outer surface of the ventral portion has a target portion to which the connecting portion is connected. In use, the wing portions are rotated from each side of the waist to the outer surface of the ventral portion to connect the connecting portions of the wing portions to the target portion. Such an articulated disposable wearing article is used not only for infants but also for nursing care (adult use) (see Patent Document 1, for example).

In general, an articulated disposable wearing article is inferior to a pants-type disposable wearing article in fit in the direction around the waist. It has been proposed to provide a waist elastic region (see, for example, Patent Document 1).

However, in the device described in Patent Document 1, a large number of folds that are continuous in the front-rear direction are formed on the surface of the waist portion of the dorsal portion. There was a risk of leakage through the folds.

JP 2005-080859 A

Therefore, the main object of the present invention is to improve leakproofness without impairing breathability due to gaps between adjacent folds.

An articulated disposable wearing article that solves the above problems is as follows.
<First Aspect>
Having a crotch portion including the center in the front-rear direction, a ventral portion extending forward from the center in the front-rear direction, and a dorsal portion extending rearward from the center in the front-rear direction,
an absorber embedded in a range including the crotch;
connecting portions provided on both sides of the dorsal portion and detachably connected to the outer surface of the ventral portion;
an end flap extending rearward from the position of the trailing edge of the absorbent body,
The end flaps include a waist elastic film extending in the front-rear direction and the width direction, a first sheet layer adjacent to the front side of the waist elastic film, and a second sheet layer adjacent to the back side of the waist elastic film,
The portion having the waist elastic film has a waist elastic region that shrinks in the width direction together with the waist elastic film and is stretchable in the width direction,
The first sheet layer, the waist elastic film, and the second sheet layer, which are continuously or intermittently provided linearly from the front side of the waist elastic region to the rear side of the waist elastic region. The joint portion and the non-joint portion of the first sheet layer, the waist elastic film, and the second sheet layer, which are elongated and continuous from the front side of the waist elastic region to the rear side of the waist elastic region, extend in the width direction. is provided so as to alternately repeat
When the waist elastic region is contracted, the waist elastic region is formed on the surface of the waist elastic region as the first sheet layer and the second sheet layer in the non-bonded portion swell in opposite directions. Continuous folds are formed repeatedly in the width direction from the front side to the back side of the waist elastic region,
At least one non-joint portion has an inclined portion extending such that both side edges have an inclination angle of 5 to 45 degrees with respect to the front-rear direction,
An articulated disposable wearing article characterized by:

(Effect)
In this connected disposable wearing article, both side edges of at least some of the folds formed on the surface of the waist elastic region are substantially the same along both side edges of the non-joint portion at the portions corresponding to the inclined portions of the non-joint portion. Therefore, when urine or loose stool that has entered gaps between adjacent folds moves in the front-rear direction, movement resistance is generated by colliding with the inclined folds. And, like the folds, the gaps between the adjacent folds are continuous from the front side of the waist stretchable region to the rear side of the waist stretchable region, so the breathability is not impaired.
The side edges of the non-bonded portion are determined by the side edges of the bonded portion. Therefore, when the joint continues from the front side of the waist elastic region to the rear side of the waist elastic region, the side edges of the non-joined portion mean the side edges of the joint portion in the unfolded state. In addition, when the joint is formed intermittently (in a dotted line) from the front side of the waist elastic region to the rear side of the waist elastic region, the side edges of the non-joint portion correspond to the side edges of the joint portion in the unfolded state. It means an imaginary line formed by connecting straight lines in the direction in which the folds extend. In addition, when the inclination angle of both side edges of the non-joint portion with respect to the front-rear direction changes continuously, for example, when both side edges of the non-joint portion form a curved line such as an arc, the direction of both side edges of the non-joint portion is , means the direction of the tangent to the side edges of the joint.

<Second Aspect>
All of the non-joint portions have the inclined portion over the entire front-rear direction,
The non-bonded portion having the inclined portion is repeatedly formed from a region on the right side of the center in the width direction to a region on the left side of the center in the width direction,
The slanted portion of the right region and the slanted portion of the left region are each slanted so as to be positioned toward the center in the width direction toward the waist.
The articulated disposable wearing article of the first aspect.

(Effect)
In this aspect, the pleats are formed bilaterally symmetrically and are excellent in appearance, which is preferable.

<Third Aspect>
All of the non-joint portions have the inclined portion over the entire front-rear direction,
all the non-joint portions of the waist elastic region have slopes parallel to each other,
The articulated disposable wearing article of the first aspect.

(Effect)
It is preferable that the folds are formed symmetrically as in the second aspect, but if the positions of the folds in the width direction are misaligned, there is a risk that the aesthetic appearance will rather deteriorate. Also, such precise pleat positioning is often difficult to manufacture. On the other hand, when all the inclined portions are formed in parallel as in the third aspect, although there is no left-right symmetry, the folds are formed orderly and the positions of the folds in the width direction are slightly shifted. Even if it shifts, the effect on the appearance is small.

<Fourth Aspect>
All of the non-joint portions have the inclined portion over the entire front-rear direction,
The non-bonded portion having the inclined portion has at least one point from the front side of the waist elastic region to the rear side of the waist elastic region, and the angle of both side edges with respect to the front-back direction changes.
An articulated disposable wearing article according to any one of aspects 1 to 3.

(Effect)
As in this aspect, the non-joined portion having an inclined portion changes the angle of both side edges with respect to the front-rear direction at least at one point from the front side of the waist elastic region to the rear side of the waist elastic region. If there is, even if the direction of the moving force applied to the urine or loose stool that has entered the gap is close to the passing direction of the part with the gap (it is easy to pass through that part), it will not be close to the passing direction of other parts, This other location provides more effective resistance to movement of urine and loose stools. Therefore, the above-described leakage prevention property is further improved.

<Fifth Aspect>
The joint portion is linearly continuous from the front side of the waist elastic region to the rear side of the waist elastic region at least other than the first bent portion.
An articulated disposable wearing article according to any one of aspects 1 to 4.

(Effect)
It is preferable to have such a joint part because the pleats having a stable shape are formed, and accordingly the inclined part also has a stable shape.

<Sixth Aspect>
a riser gather that rises from the surface along the excrement blocking positions on both sides in the width direction,
The rising gather includes a root portion attached to the outside of the blocking position in the width direction, a main portion extending from the root portion, and a front end portion and a rear end portion of the main portion fixed in a fallen state. a front lodge portion and a rear lodge portion formed; a rising portion formed by unfixing a portion between the front lodge portion and the rear lodge portion in the main portion; a gathering elastic member;
At least a tip portion of the rising portion contracts in the front-rear direction together with the gathering elastic member and is expandable in the front-rear direction,
A linear first bent portion extending in the width direction from the front edge of one of the rear lodge portions to the front edge of the other rear lodge portion, and a linear bend extending in the width direction away from the first bend portion to the front side. and a second bend of
Having a first region that is a region adjacent to the rear side of the first bent portion and a second region that is a region between the first bent portion and the second bent portion,
The waist elastic region is formed at least in the first region,
As the rising portion shrinks, the second region rises starting from the second bending portion, and the first region bends backward with respect to the second region at the first bending portion. cage,
The joint portion and the non-joint portion are provided such that the crease and the gap between the adjacent creases extend rearward from at least the front edge of the first region.
An articulated disposable wearing article according to any one of aspects 1 to 5.

(Effect)
In this connected disposable wearing article, the contractile force of the gathering elastic member of the rising gather causes the second region to rise starting from the second bent portion, while the portion of the waist stretchable region located in the first region shrinks in the width direction. is pressed against the wearer's skin, and the first region bends backward with respect to the second region at the first bent portion. Therefore, in this connected disposable wearing article, the second region is raised, and the first region behind it is pressed against the wearer's skin. A wide storage space (pocket) is firmly formed. In addition, since the second region rises on the waist side of the depression that becomes the storage space, and the first region on the rear side is pressed against the wearer's skin, the effect of blocking the backward movement of the excretory part. is high, making it difficult for excrement to flow into the gaps between adjacent folds in the first region. Furthermore, since the creases of the elastic waist region and the gaps between the adjacent creases lead to the recesses that serve as storage spaces, when the volume of the recesses that serve as storage spaces decreases due to external pressure (occurred when sitting or lying down), The air in the dent is pushed out through the crevices of the folds of the waist elastic region, and conversely, when the volume of the dent, which serves as a storage space, increases due to the release of the external pressure, the outside air is introduced into the dent through the crevices of the folds of the waist elastic region. (pump action), the air permeability is very good while improving the leak prevention property as described above.

<Seventh Aspect>
The inclined portion extends rearward from at least the front edge of the first region,
The articulated disposable wearing article of the sixth aspect.

(Effect)
In the case of this aspect, the slanted folds formed by the slanted portions exist from the front edge of the first region, and movement suppression of excrement acts from the front end of the first region, thereby further preventing the back leakage of excrement. can be effectively prevented.

<Eighth Aspect>
The waist elastic region is formed in the first region and the second region,
The waist elastic film is individually provided in the first region and the second region,
The elastic film in the first region and the elastic film in the second region are adjacent to each other across the first bent portion,
The articulated disposable wearing article of the sixth or seventh aspect.

(Effect)
With such a structure, the first bending portion becomes a portion that is easier to bend with lower rigidity than the first region and the second region. As a result, the bending position is less likely to shift, and the shape and position of the storage space can be easily maintained. Furthermore, the contraction in the width direction increases the rigidity of the second region, so that the storage space is less likely to collapse.

<Ninth Aspect>
The first sheet layer and the second sheet layer extend to a position spaced forward from the trailing edge of the second region,
The joint portion is not provided in the first bending portion, and is provided adjacent to the first region side and the second region side thereof,
The articulated disposable wearing article of the sixth or seventh aspect.

(Effect)
With such a structure, the portion where the joint exists has relatively high rigidity, and the portion where the joint does not exist has relatively low rigidity. As a result, the first bending portion can be bent even more easily with a simple structure that employs a pattern of specific joints.

<Tenth Aspect>
an elastic sheet including the first sheet layer, the second sheet layer and the waist elastic film is attached to a region including the end flaps;
The elastic sheet extends to the front edge of the second region or to the front side thereof,
The waist elastic film is provided in the first region and not provided in the second region,
The articulated disposable wearing article of the sixth or seventh aspect.

(Effect)
In this aspect, the elastic sheet exists over the entire second region in the front-rear direction, increasing the rigidity. Therefore, the second region is firmly raised, and the storage space is less likely to collapse. Moreover, since the waist elastic film does not straddle the first bent portion, bending of the first bent portion is less likely to be hindered.

<Eleventh Aspect>
The absorbent body includes a main absorbent body provided in a third region adjacent to the front side of the second bent portion and an auxiliary absorbent body provided in the second region,
the trailing edge of the auxiliary absorbent body matches the trailing edge of the second region;
An articulated disposable wearing article according to any one of the sixth to tenth aspects.

(Effect)
In this connected disposable wearing article, the second region is firmly raised, the storage space is less likely to be crushed, and the liquid content of the excrement introduced into the storage space can be absorbed and held by the auxiliary absorber in the second region. In addition, the change in rigidity between the first bent portion and the portion on the front side thereof is particularly large, and the bent position is more difficult to shift, which is preferable.

　According to the present invention, advantages such as improved leak prevention without impairing breathability due to gaps between adjacent folds are provided.

Fig. 2 is a plan view showing the inner surface of the tape-type disposable diaper when the diaper is unfolded; Fig. 2 is a plan view showing the outer surface of the tape-type disposable diaper when the diaper is unfolded; 6 is a cross-sectional view taken along line 6-6 of FIG. 1; FIG. FIG. 7 is a cross-sectional view taken along line 7-7 of FIG. 1; 5 is a cross-sectional view taken along line 5-5 of FIG. 1; FIG. 2 is a cross-sectional view taken along line 9-9 of FIG. 1; FIG. FIG. 3 is an exploded view of a main part; FIG. 4 is a plan view showing an enlarged main part on one side with respect to the center line (one-dot chain line) passing through the center in the width direction (the other side is configured symmetrically with respect to the center line). (a) A cross-sectional view taken along line 8-8 in FIG. 1, and (b) a cross-sectional view schematically showing its raised state. FIG. 4 is a plan view showing an enlarged main part on one side with respect to the center line (one-dot chain line) passing through the center in the width direction (the other side is configured symmetrically with respect to the center line). (a) A cross-sectional view taken along line 8-8 in FIG. 1, and (b) a cross-sectional view schematically showing its raised state. FIG. 4 is a plan view showing an enlarged main part on one side with respect to the center line (one-dot chain line) passing through the center in the width direction (the other side is configured symmetrically with respect to the center line). FIG. 3 is an exploded view of a main part; FIG. 3 is an exploded view of a main part; (a) A cross-sectional view corresponding to the 8-8 line cross-section of FIG. 1, and (b) a cross-sectional view schematically showing the raised state. (a) A cross-sectional view corresponding to the cross section taken along line 8-8 in FIG. 1, showing a state in which the storage space is collapsed, and (b) a cross-sectional view along line 4-4 thereof. FIG. 4 is a front view of the main part of the sample in the natural length state; Fig. 2 is a side view of the sample in the worn state; (a) to (d) are plan views of stretch sheets. FIG. 4 is a plan view showing an enlarged main part on one side with respect to the center line (one-dot chain line) passing through the center in the width direction (the other side is configured symmetrically with respect to the center line). FIG. 4 is a plan view showing an enlarged main part on one side with respect to the center line (one-dot chain line) passing through the center in the width direction (the other side is configured symmetrically with respect to the center line). It is a top view which expands and shows the principal part of Fig.19 (a).

1 to 9 show an example of a tape-type disposable diaper, where X in the figures indicates the total width of the diaper excluding the connecting tape, and L indicates the total length of the diaper. A dotted pattern portion indicates a hot-melt adhesive as a joining means for joining each component located on the front side and the back side. The hot melt adhesive is applied by known methods such as slot coating, continuous line or dotted line bead coating, spiral or Z-shaped spray coating, or pattern coating (transfer of hot melt adhesive by letterpress method). can be applied. Alternatively or additionally, at the fixing portion of the elastic member, a hot melt adhesive can be applied to the outer peripheral surface of the elastic member to fix the elastic member to the adjacent member. Hot-melt adhesives include, for example, EVA-based, adhesive rubber-based (elastomer-based), polyolefin-based, polyester/polyamide-based, and the like, and can be used without particular limitation. As a joining means for joining each constituent member, a means by material welding such as heat sealing or ultrasonic sealing can be used.

This tape-type disposable diaper has a crotch portion including the center in the front-rear direction LD, an abdominal portion F extending forward from the center in the front-rear direction LD, and a back portion B extending rearward from the center in the front-rear direction LD. are doing. In addition, this tape-type disposable diaper includes an absorbent body 56 built in a region including the crotch portion, a liquid-permeable top sheet 30 covering the front side of the absorbent body 56, and a liquid-impermeable top sheet 30 covering the back side of the absorbent body 56. It has a sheet 11 and an exterior nonwoven fabric 12 that covers the back side of the liquid-impermeable sheet 11 and constitutes the outer surface of the product.

The materials and characteristic parts of each part will be described in order below.
(Absorber)
The shape of the absorber 56 may be rectangular as shown in the figure, or may be determined as appropriate, such as a shape having a constricted portion along the circumference of the leg in the middle in the front-rear direction (an hourglass shape). Reference numeral 56x indicates the full width of the absorber 56. As shown in FIG. The absorbent body 56 is a part that absorbs and retains the excreted fluid, and can be formed by an assembly of fibers. The filament assembly may be a filament assembly obtained by laminating short fibers such as cotton pulp or synthetic fibers, or by opening tows (fiber bundles) of synthetic fibers such as cellulose acetate as necessary. can also be used. The fiber basis weight can be, for example, about 100 to 300 g/m ² when piling up cotton-like pulp or short fibers, and for example, about 30 to 120 g/m ² for filament aggregates. can be done. The fineness of synthetic fibers is, for example, 1 to 16 dtex, preferably 1 to 10 dtex, more preferably 1 to 5 dtex. In the case of a filament assembly, the filaments may be non-crimped fibers, but crimped fibers are preferred.

Although the bending resistance of the absorbent body 56 is not particularly limited, it is described later that the bending resistance of the absorbent body 56 in the front-back direction is 75 mm or more according to JIS L 1913:2010 "41.5° cantilever method". The rise of the second region 20 becomes favorable.

(superabsorbent polymer particles)
Absorbent body 56 may contain superabsorbent polymer particles in part or in its entirety. Superabsorbent polymer particles include "powder" in addition to "particles". As the superabsorbent polymer particles, those used in this type of absorbent article can be used as they are. Although the particle size of the superabsorbent polymer particles is not particularly limited, for example, sieving using a 500 μm standard sieve (JIS Z8801-1: 2006) (shaking for 5 minutes), and particles falling under the sieve in this sieving When sieving (shaking for 5 minutes) using a 180 μm standard sieve (JIS Z8801-1: 2006), the percentage of particles remaining on the 500 μm standard sieve is 30% by weight or less, and the 180 μm standard sieve It is desirable that the proportion of particles remaining on the top is 60% by weight or more.

The material for the superabsorbent polymer particles can be used without any particular limitation, but those with a water absorption of 40 g/g or more are suitable. Superabsorbent polymer particles include starch-based, cellulose-based, and synthetic polymer-based particles. and acrylic acid (salt) polymers can be used. As for the shape of the superabsorbent polymer particles, the powder particles that are commonly used are suitable, but other shapes can also be used.

As the superabsorbent polymer particles, those with a water absorption rate of 70 seconds or less, particularly 40 seconds or less are preferably used. If the water absorption rate is too slow, the liquid supplied into the absorbent body 56 tends to return to the outside of the absorbent body 56, which is called reversion.

Also, as the superabsorbent polymer particles, those having a gel strength of 1000 Pa or more are preferably used. As a result, even when the absorbent body 56 is bulky, it is possible to effectively suppress the feeling of stickiness after liquid absorption.

The basis weight of the superabsorbent polymer particles can be appropriately determined according to the absorption amount required for the use of the absorbent body 56 . Therefore, although it cannot be generalized, it can be 50 to 350 g/m ² in normal cases.

(packaging sheet)
In order to prevent the superabsorbent polymer particles from slipping out or to improve the shape retention of the absorbent body 56, the absorbent body 56 can be incorporated as an absorbent element 50 wrapped with a wrapping sheet 58. FIG. As the wrapping sheet 58, tissue paper, especially crepe paper, nonwoven fabric, poly-laminated nonwoven fabric, a sheet with small holes, or the like can be used. However, it is desirable that the sheet is such that the superabsorbent polymer particles do not escape. When non-woven fabric is used instead of crepe paper, hydrophilic SMMS (spunbond/meltblown/meltblown/spunbond) nonwoven fabric is particularly suitable, and polypropylene, polyethylene/polypropylene, etc. can be used as the material. The fiber basis weight is preferably 5 to 40 g/m ² , particularly 10 to 30 g/m ² .

As shown in FIG. 3, the packaging sheet 58 may have a structure that wraps the entire absorbent body 56 with one sheet, or may wrap the entire absorbent body 56 with a plurality of sheets, such as two upper and lower sheets. Also, as shown in the drawings, the packaging sheet 58 may have a portion extending forward and backward of the absorbent body 56 . The packaging sheet 58 can also be omitted.

(top sheet)
The top sheet 30 is liquid-permeable, and may be, for example, a perforated or non-perforated nonwoven fabric, or a perforated plastic sheet.

The top sheet 30 extends from the front end to the rear end of the product in the front-rear direction LD, and extends laterally from the absorbent body 56 in the width direction WD. If necessary, the width of the top sheet 30 can be made shorter than the total width of the absorbent body 56, for example, when the top sheet 30 is located at the center side in the width direction WD.

(intermediate sheet)
An intermediate sheet (also called a “second sheet”) 40 can be provided on the back side of the topsheet 30 to prevent liquid that has permeated the topsheet 30 from flowing back. The intermediate sheet 40 can also be omitted.

As the intermediate sheet 40, various nonwoven fabrics can be suitably used, and particularly bulky air-through nonwoven fabrics can be suitably used. Composite fibers having a core-sheath structure are preferably used for the air-through nonwoven fabric. In this case, the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable. The basis weight is preferably 17-80 g/m ² , more preferably 25-60 g/m ² . The thickness of the raw fibers of the nonwoven fabric is preferably 2.0 to 10 dtex. In order to make the non-woven fabric bulky, it is also preferable to use eccentric fibers, hollow fibers, or eccentric and hollow fibers whose core is not in the center as mixed fibers of all or part of the raw material fibers.

The intermediate sheet 40 in the illustrated example is shorter than the width of the absorbent body 56 and arranged in the center, but it may be provided over the entire width. Further, the intermediate sheet 40 may be provided over the entire length of the diaper, or may be provided only in the intermediate portion including the excretion position as shown in the illustrated example.

(liquid-impermeable sheet)
The liquid-impermeable sheet 11 is not particularly limited, but preferably has moisture permeability. As the liquid-impermeable sheet 11, for example, a microporous sheet obtained by kneading an inorganic filler in a polyolefin resin such as polyethylene or polypropylene, molding the sheet, and then stretching in a uniaxial or biaxial direction. A sheet can be preferably used. Moreover, as the liquid-impermeable sheet 11, a non-woven fabric as a base material with improved waterproofness can also be used.

It is desirable that the liquid-impermeable sheet 11 extends in the same or wider range than the absorbent body 56 in the front-rear direction LD and the width direction WD. A structure in which the end portions of the absorber 56 are not covered in the front-rear direction LD and the width direction WD may also be employed.

(exterior non-woven fabric)
The exterior nonwoven fabric 12 covers the entire back side of the liquid-impermeable sheet 11 to give the outer surface of the product a cloth-like appearance. The non-woven fabric can be used singly or in multiple layers. In the latter case, it is preferable to bond the nonwoven fabrics together with a hot-melt adhesive or the like. When a nonwoven fabric is used, it is preferable that the nonwoven fabric has a fineness of 1.6 to 2.3 dtex, a basis weight of 15 to 25 g/m ² and a thickness of 0.3 to 0.8 mm. The exterior nonwoven fabric 12 can be omitted, in which case the liquid-impermeable sheet 11 constitutes the outer surface of the product.

(Getting up gathers)
In order to block excrement that moves laterally along the top sheet 30 and prevent so-called side leakage, on both sides of the surface in the width direction WD, rise gathers that rise from the surface along the excrement blocking position are provided. 60 is preferably provided.

More specifically, the rising gathers 60 include a root portion 65 fixed to a region including the side flaps SF, a main portion 66 extending from the root portion 65 toward the center in the width direction WD, and a front end of the main portion 66. A front lying portion 67f and a rear lying portion 67b, which are formed by fixing the main portion and the rear end in a lying state, respectively, and a portion between the front lying portion 67f and the rear lying portion 67b in the main portion 66 are formed by being unfixed. and a raised portion 68 which is formed. A gather elastic member 63 is attached to at least the tip of the raised portion 68 .

Each part of the rising gathers 60 in the illustrated example is formed of a gather sheet 62, and the gather sheet 62 is folded in two at the tip of the main part 66 (the end opposite to the base part 65 side), so that it can be freely lifted. The range including the part has a two-layer structure. The gather elastic member 63 is sandwiched between the layers of this two-layer structure. The gathering elastic member 63 can be provided only on the raised portion 68, but if it is fixed from the rear end of the front lying portion 67f to the front end of the rear lying portion 67b as shown in the figure, the gathering elastic member 63 will not be formed. It is preferable because the contractile force acts not only on the entire rising portion 68 but also on the ends of the front lying portion 67f and the rear lying portion 67b.

The inner surface of the gather sheet 62 has a joining start edge in the width direction WD on the side of the top sheet 30, and the portion outside the joining edge in the width direction is the inner surface of each side flap SF, that is, the illustrated example is liquid-impermeable. The side portions of the sheet 11 and the side portions of the exterior nonwoven fabric 12 located on the widthwise outer side thereof are joined with a hot-melt adhesive or the like.

Although both ends in the front-rear direction are fixed on the top sheet 30 in the width direction inner side from the joining start end of the rising gathers 60, the rising portions 68 therebetween are unfixed free portions. Therefore, the rising portion 68 is contracted and raised in the front-rear direction by the contractile force of the gather elastic member 63, and can be stretched in the front-rear direction, so that it comes into close contact with the surface of the body. Further, as the rising portion 68 contracts in the front-rear direction due to the contractile force of the gather elastic member 63, the portions having the front lying portion 67f and the rear lying portion 67b are deformed so as to approach each other.

Although not shown, as is well known, the main portion 66 of the rising gathers 60 is divided into a base end portion extending widthwise inward from a widthwise outer portion and a widthwise central portion of the base end portion. Both ends of the main portion 66 in the front-rear direction are fixed to form a forward lying portion 67f and a rearward lying portion 67b in a state in which the main portion 66 is folded in two and has a front end side portion that is folded back from the end edge toward the body side and extends outward in the width direction. can also be formed.

The type of the gathers sheet 62 is not particularly limited, but normally, a water-repellent one is used in order to ensure liquid barrier properties. In particular, a nonwoven fabric having a meltblown layer between spunbond layers (SMS nonwoven fabric, SMMS nonwoven fabric, SSMS nonwoven fabric, SSMMS nonwoven fabric) is preferable in that both good texture and liquid impermeability can be achieved. The non-woven fabric can be used singly or in multiple layers. In the latter case, it is preferable to bond the nonwoven fabrics together with a hot-melt adhesive or the like.

As the gathered elastic member 63, rubber thread (rubber spandex thread with a thickness of about 420 to 1120 dtex) or the like can be used. A plurality of gathering elastic members 63 may be provided on each side as shown in FIGS. 1 and 2, or only one may be provided on each side. The stretch rate of the gathered elastic members 63 in the unfolded state can be determined as appropriate, and can be, for example, about 230 to 270%.

(side flap)
The illustrated tape-type disposable diaper has a pair of side flaps SF which do not have an absorbent body 56 and extend laterally from both side edges of the absorbent body 56 . The side flaps SF may be made of a material (exterior nonwoven fabric 12 or the like) that continues from the portion having the absorber 56, as shown in the figure, or may be formed by attaching another material.

(flat gather)
A side elastic member 64 made of an elongated elastic member such as rubber thread is fixed to each side flap SF while being stretched in the front-rear direction LD. Configured as a gather. The leg elastic members 64 are provided between the gathered sheet 62 and the liquid-impermeable sheet 11 on the outside in the width direction of the joining portion of the gathered sheet 62 in the vicinity of the joining start end, as shown in the illustrated example, and side flaps SF It can also be provided between the liquid-impermeable sheet 11 and the exterior nonwoven fabric 12 in . A plurality of leg-surrounding elastic members 64 may be provided on each side as in the illustrated example, or only one leg-surrounding elastic member 64 may be provided on each side.

The planar gather is a portion where the contractile force of the side elastic member 64 acts (the portion where the side elastic member 64 is shown in the figure). Therefore, in addition to the form in which the side elastic members 64 are present only in the planar gathers, the side elastic members 64 are present on the front side, the rear side, or both sides of the planar gathers, but the side elastic members 64 are present in areas other than the planar gathers. If the member 64 is finely cut at one point or multiple points, or is not fixed to the sheet sandwiching the side elastic member 64, or both, the contractile force acts on a portion other than the planar gathers. Also included is a structure in which the contractile force of the side elastic members 64 acts only on the plane gathers without providing elastic members (substantially equivalent to not providing elastic members).

(Wing part)
In this tape-type disposable diaper, the back portion B has a wing portion WP that extends outward in the width direction WD from the crotch portion M. Similarly, the ventral portion F also has a wing portion WP extending outward in the width direction WD from the crotch portion M. These wing portions WP can also be formed of a member different from the other portions. However, in a structure having side flaps SF as in the illustrated example, a concave edge is formed from the side edge of the crotch portion M to the lower edge of the wing portion by cutting the middle of the front-rear direction LD at the side portion of the side flap SF. It is preferable that the wing portion WP is formed as a result, because the manufacturing is easy.

(connecting tape)
As shown in FIGS. 1, 2, and 5, the wing portions WP of the dorsal portion B are provided with connecting tapes 13 that are detachably connected to the outer surface of the ventral portion F, respectively. When wearing the diaper, the connecting tape 13 is wrapped around the outer surface of the abdominal portion F from both sides of the waist, and the connecting portions 13A of the connecting tape 13 are connected to the outer surface of the abdominal portion F at appropriate locations.

As shown in FIG. 5, the connecting tape 13 includes a base end portion 13C fixed to the wing portion WP, a sheet base material 13S forming a main body portion 13B extending from the base end portion 13C, and the sheet base material 13S. and a connecting portion 13A for the ventral portion F provided in the middle portion of the main body portion 13B in the width direction WD. In the body portion 13B, the proximal end portion 13C side of the connecting portion 13A is a non-connecting portion that is not connected to the ventral portion F, and the opposite side is a knob portion. The non-connecting portion and the knob portion are composed only of the sheet base material 13S forming the main body portion 13B.

The connecting portion 13A is made of a hook material (male material) of a mechanical fastener (hook-and-loop fastener). The hook material has a large number of engaging projections on its connection surface, and the shapes of the engaging projections are (A) square-shaped, (B) J-shaped, (C) mushroom-shaped, and (D). Although there are a T shape, (E) a double J shape (a shape in which two J shapes are joined back to back), and the like, any shape may be used.

Further, as the sheet base material 13S forming the base end portion 13C to the main body portion 13B, nonwoven fabric, plastic film, poly-laminated nonwoven fabric, paper, or a composite material thereof can be used.

Although the connecting portion 13A in the illustrated example is provided on the sheet base material 13S of the connecting tape 13 projecting from the wing portion WP, it may be provided directly on the wing portion WP.

(target sheet)
It is preferable that a target sheet 12T is provided at a connecting portion of the connecting tape 13 in the ventral portion F in order to facilitate the connecting of the connecting tape 13. As shown in FIG.

The material of the target sheet 12T is not particularly limited, but when the connecting portion 13A is a hook material, for example, a long-fiber nonwoven fabric in which the fibers are partially welded to each other by ultrasonic welding in an intermittent pattern may be used. can. In this case, the long-fiber nonwoven fabric preferably has a fineness of 5 to 10 dtex, a basis weight of 25 to 40 g/m ² and a thickness of 0.3 to 0.8 mm.

Further, when the connecting portion 13A is made of a hook material, the target sheet 12T may be a target sheet 12T in which a large number of loop threads are provided on the surface of a base material made of a plastic film or nonwoven fabric so that the engaging projections of the hook material are entwined. . A specific example of this is a composite sheet material having loop pile fiber threads sewn onto at least the outer surface of a substrate. In this sheet material, loop pile fiber yarns protrude at intervals in the weft and warp directions on the outer surface of the base material, that is, on the outer surface side of the disposable diaper, and pile fiber yarns are projected on the back side of the base material (wearer side). are combined with each other to form crossing rows of pile fiber warps.

Furthermore, when the connection portion 13A is a hook material and the connecting portion of the connection tape 13 in the ventral portion F is made of nonwoven fabric (for example, when the outer nonwoven fabric 12 is provided as in the illustrated example), the inner side of the outer nonwoven fabric 12 , a target sheet 12T such as a plastic sheet, paper, non-woven fabric or the like on which connection positions such as scales are printed can be arranged. In this case, the user can connect by entangling the fibers of the exterior nonwoven fabric 12 with the hook material of the connecting portion 13A at the position of the target sheet 12T seen through the exterior nonwoven fabric 12. FIG.

On the other hand, when the connecting portion 13A is an adhesive layer, a highly adhesive plastic film with a smooth surface subjected to a release treatment can be used as the target sheet 12T.

(end flap)
This tape-type disposable diaper has a pair of end flaps EF that do not have an absorbent body 56 and extend to the front and rear sides of the absorbent body 56, respectively. The constituent materials of the end flaps EF vary depending on the construction of the diaper. For example, the end flaps EF are the top sheet 30, the intermediate sheet 40, the packaging sheet 58, the gather sheet 62, the liquid impermeable sheet 11, and the exterior nonwoven fabric 12, and are laminated extending to the front and rear sides of the absorbent body 56, and can be formed by parts joined together. Unlike the illustrated example, the end flaps EF are formed by the top sheet 30 and the liquid impermeable sheet 11 when the intermediate sheet 40 and the exterior nonwoven fabric 12 are not provided. Also, a dedicated sheet for forming the end flaps EF may be added to the front side or rear side of the absorber 56 to form the end flaps EF.

The dimension of the end flap EF in the dorsal portion B in the longitudinal direction LD is preferably longer than the dimension of the base end portion 13C of the connecting tape 13 in the longitudinal direction LD. Normally, the dimension of the end flap EF in the front-rear direction LD is preferably about 20 to 25% of the dimension L in the front-rear direction LD of the entire diaper, and in infant diapers, it is preferably about 80 to 120 mm. Appropriate.

(Waist elastic area)
7 to 9, the end flaps EF include a waist elastic film 71 extending in the front-rear direction LD and the width direction WD, a first sheet layer 73 adjacent to the front side of the waist elastic film 71, and a second sheet layer 74 adjacent to the back side of the waist elastic film 71 . The portion having the waist elastic film 71 contracts in the width direction WD as the waist elastic film 71 shrinks, and as shown in FIGS. It has a waist elastic region 79 that can be stretched. The portion having the waist elastic film 71 may be entirely the waist stretchable region 79 or may be partially the waist stretchable region 79 . That is, part of the portion having the waist elastic film 71 (for example, portions located at both ends in the width direction WD of the waist elastic film 71) may have little or no stretchability.

The rear edge of the waist elastic film 71 or the waist stretchable region 79 may match the rear edge of the diaper or may be further forward than the rear edge of the diaper. In the latter case, the rear edge of the waist elastic film 71 or the waist stretchable region 79 may be aligned with the front edge of the rear lying portion 67b of the sit-up gathers 60, or may be positioned forward or rearward thereof. . The front edge of the waist elastic film 71 or the waist stretchable region 79 may be aligned with the rear edge of the absorbent body 56 , or may be spaced rearward from the rear edge of the absorbent body 56 . may be located at the rear end of the

The waist elastic film 71 or the waist elastic region 79 may be positioned between both the rising gathers 60 or may extend to a position overlapping both the rising gathers 60 . In particular, the waist elastic film 71 or the waist stretchable region 79 extends in the front-rear direction so as to include from the rear lying portion 67b or base portion 65 of at least one of the rising gathers 60 to the rear lying portion 67b or base portion 65 of the other rising gather 60. and preferably in the width direction.

The waist elastic film 71 is not particularly limited as long as it is a material that elastically expands and contracts by itself. For example, one or a blend of two or more thermoplastic elastomers such as styrene elastomers, olefin elastomers, polyester elastomers, polyamide elastomers and polyurethane elastomers are extruded into films by extrusion molding such as the T-die method and the inflation method. A material processed into a shape can be used. Moreover, as the waist elastic film 71, in addition to the non-porous film, a film having a large number of holes or slits for ventilation can be used. In particular, the tensile strength in the stretching direction is 8 to 25 N / 35 mm, the tensile strength in the direction perpendicular to the stretching direction is 5 to 20 N / 35 mm, the tensile elongation in the stretching direction is 450 to 1050%, and in the direction perpendicular to the stretching direction An elastic film having a tensile elongation of 450 to 1400% is preferred. The tensile strength and tensile elongation (elongation at break) were measured using a tensile tester (e.g., AUTOGRAPH AGS-G100N manufactured by SHIMADZU), except that the test piece was rectangular with a width of 35 mm and a length of 80 mm, according to JIS K7127. : 1999 "Plastics - Test method for tensile properties -", the initial chuck distance is 50 mm and the tensile speed is 300 mm/min. Although the thickness of the waist elastic film 71 is not particularly limited, it is preferably about 20 to 40 μm. The basis weight of the waist elastic film 71 is not particularly limited, but it is preferably about 30 to 45 g/m ² , more preferably about 30 to 35 g/m ² .

The first sheet layer 73 and the second sheet layer 74 are not particularly limited. For example, as shown in FIGS. Although the sheet 11) can also be used, a dedicated first sheet layer 73 and a second sheet layer 74 can also be provided as in the examples shown in FIGS. 10 and 11, the first sheet layer 73 forms the rear portion of the intermediate sheet 40 and the rear portion of the top sheet 30, and the second sheet layer 74 forms the rear portion of the liquid-impermeable sheet 11. ing. Although not shown, the first sheet layer 73 may be the rear part of the liquid-impermeable sheet 11, and the second sheet layer 74 may be the covering nonwoven fabric 12. On the other hand, in the examples shown in FIGS. 7 to 9, the elastic sheet 70 having the waist elastic film 71 fixed between the exclusive first sheet layer 73 and the second sheet layer 74 is attached to the end flaps EF. As in the examples shown in FIGS. 7 to 9, the elastic sheet 70 is provided between appropriate members between the top sheet 30 and the exterior nonwoven fabric 12 (in the illustrated example, the top sheet 30, the intermediate sheet 40, and the liquid impermeable sheet 11, but it may be between the liquid-impermeable sheet 11 and the exterior nonwoven fabric 12). It can also be applied as a top layer. In the latter case, in the portion having the gathered sheet 62 , the elastic sheet 70 is arranged above the gathered sheet 62 (that is, the whole is the uppermost layer), and also arranged between the top sheet 30 and the gathered sheet 62 . can also Various nonwoven fabrics can be used as the dedicated first sheet layer 73 and the second sheet layer 74 .

The first sheet layer 73 and the second sheet layer 74 may be two separate sheets as in the illustrated example, or, although not illustrated, one side of the fold in one sheet that is folded in half. It may be a part and a part on the other side.

The expansion rate of the waist elastic region 79 in the unfolded state may be determined as appropriate, and may be, for example, approximately 120 to 230%, more preferably approximately 160 to 230%.

As in the illustrated example, the first sheet layer 73, the elastic film 71, and the first sheet layer 73, the elastic film 71, and the elastic film 71 are provided continuously or intermittently so as to extend linearly from the front side of the waist elastic region 79 to the rear side of the waist elastic region 79. A joined portion 75 of the two sheet layers 74 and a non-joined portion of the first sheet layer 73, the elastic film 71, and the second sheet layer 74, which is elongated and continuous from the front side of the waist elastic region 79 to the rear side of the waist elastic region 79. 77 are preferably provided alternately in the width direction WD. As a result, when the waist elastic region 79 is contracted, the first sheet layer 73 and the second sheet layer 74 in the non-bonded portion 77 swell in opposite directions as shown in FIG. 16(b). As shown in FIG. 17 , on the surface of the waist elastic region 79 , folds 80 that are continuous from the front side of the waist elastic region 79 to the rear side of the waist elastic region 79 are repeatedly formed in the width direction WD. The joint portions 75 may be provided intermittently in the direction intersecting the width direction WD, but the joint portions 75 are linearly formed in the direction intersecting the width direction WD except for the first bent portion 91 described later as in the illustrated example. preferably continuous. Of course, the joint portion 75 may cross the first bent portion 91 and continue in the direction intersecting the width direction WD.

It is preferable that the width 75w of the joint portion 75 (the dimension in the direction perpendicular to the trajectory of points equidistant from both side edges of the joint portion 75 (the tangent line in the case of a curved line)) does not change (constant). may change. When the width 75w of the joint 75 varies, the maximum width is preferably two to five times the minimum width. The width 75w of the joint portion 75 can be determined as appropriate. It is preferably 0.5 to 2 mm. Further, the interval 77w in the width direction WD between the non-bonded portions 77 in the unfolded state determines the height of the folds 80, and is preferably 4 to 8 mm in normal cases.

The first sheet layer 73, the waist elastic film 71, and the second sheet layer 74 can be joined at the joining portion 75 by a known method such as a hot-melt adhesive or a welding means such as heat sealing or ultrasonic sealing. can. At least one of the first sheet layer 73 and the second sheet layer 74 may protrude from both sides in the width direction and both sides in the front-rear direction of the waist elastic film 71 . A portion having no film may be a portion that directly joins the first sheet layer 73 and the second sheet layer 74 .

When the elastic sheet 70 including the waist elastic film 71 is attached to the end flaps EF, the joint pattern between the elastic sheet 70 and the members of the end flaps EF overlapping it is formed on the elastic sheet 70 on the surface of the waist elastic region 79. As long as the undulations of the folds 80 appearing as they are on the surface of the end flap EF, they can be determined as appropriate. For example, the elastic sheet 70 and the members of the end flaps EF overlapping it are continuously joined in both the front-rear direction LD and the width direction WD, or continuously joined in at least one of the front-rear direction LD and the width direction WD. You can When the joint between the stretchable sheet 70 and the members of the end flap EF (such as the top sheet 30) overlapping the stretchable sheet 70 is continuous in the width direction WD, as shown in FIG. The folds 80 formed on the surface of the waist elastic region 79 correspond to the folds 80 formed on the surface of the waist elastic region 79 .

(fold)
As shown in FIGS. 8, 19(a), 22, etc., at least one non-bonded portion 77 has both side edges 77s with an inclination angle θ of 5 to 45 degrees with respect to the front-rear direction LD (acute crossing angle). (same for other angles of inclination). The inclination angle θ of the inclined portion 72 is more preferably 8 to 15 degrees. Here, the side edges 77 s of the non-joint portion 77 are determined by the side edges of the joint portion 75 . Therefore, as shown in FIG. 22(a), when the joint portion 75 continues from the front side of the waist elastic region 79 to the rear side of the waist elastic region 79, the side edges 77s of the non-joint portion 77 are It means the side edge of the joint 75 . Further, as shown in FIG. 22(b), when the joints 75 are formed intermittently (dotted lines) from the front side of the waist elastic region 79 to the rear side of the waist elastic region 79, both sides of the non-joint portion 77 The edge means an imaginary line formed by straightly connecting the side edges of the joint portion 75 in the unfolded state in the direction in which the folds 80 extend. Further, when the inclination angle θ of both side edges 77s of the non-bonded portion 77 with respect to the front-rear direction LD continuously changes, for example, as shown in FIG. , the direction of both side edges 77 s of the non-joined portion 77 means the tangent direction of both side edges 77 s of the joined portion 75 .

Both side edges of at least some of the folds 80 formed on the surface of the waist stretchable region 79 extend in substantially the same direction along the side edges 77s of the non-joined portion 77 at portions corresponding to the inclined portions 72 of the non-joined portion 77. Because of the inclination, when urine or loose stool that has entered gaps 81 between adjacent folds 80 moves in the front-rear direction LD, movement resistance is generated by colliding with the inclined folds 80 . The gaps 81 between the adjacent folds 80 are continuous from the front side of the waist stretchable region 79 to the rear side of the waist stretchable region 79, similarly to the folds 80, so that breathability is not impaired.

From this point of view, in the illustrated example, all of the non-bonded portions 77 located between at least the rise gathers 60 in the waist elastic region 79 have the inclined portions 72 (that is, the inclined folds 80 are formed), and all of the non-joint portions 77 located in the range from the rear lying portion 67b or root portion 65 of one rising gather 60 to the rear lying portion 67b or root portion 65 of the other rising gather 60 It is preferred to have a ramp 72 . Of course, the non-joint portion 77 having the inclined portion 72 and the non-joining portion 77 not having the inclined portion 72 may be provided at intervals of one or more.

As shown in FIGS. 19(a) and 19(b), each non-joint portion 77 may be the inclined portion 72 as a whole, or may be partially inclined as shown in FIGS. 19(c) and 19(d). It is sufficient to have only the inclined portion 72 .

As in the example shown in FIG. 19A, non-bonded portions 77 having inclined portions 72 are repeatedly formed from a region on the right side of the center in the width direction WD to a region on the left side of the center in the width direction WD. In this case, if the inclined portion 72 of the right region and the inclined portion 72 of the left region are inclined so as to be positioned toward the center side of the width direction WD toward the waist side, the folds 80 are bilaterally symmetrical. It is preferable because it is formed and is excellent in appearance. In particular, such an inclined portion 72 is provided at least in a portion overlapping with the rear lying portion 67b of the rising gathers 60, and at least one, more preferably a plurality of, particularly preferably three or more, are provided on each rear lying portion 67b. When the folds 80 are formed, the angle between the passing direction of urine and loose stools on the rear lying portion 67b and the direction of the inclined folds 80 formed by the inclined portion 72 becomes large, and urine and loose feces are more effectively passed. It is possible to suppress the passage of loose stools. Of course, as in the example shown in FIG. 19C, the inclined portion 72 in the right area and the inclined portion 72 in the left area are inclined away from the center of the width direction WD toward the waist. may

As in the examples shown in FIGS. 19(a) and 19(c), it is preferable that the folds 80 are formed bilaterally symmetrically, but if the positions of the folds 80 in the width direction WD are misaligned, there is a risk that the aesthetic appearance will be rather inferior. . Also, such precise fold 80 positioning is often difficult to manufacture. Therefore, it is also proposed that all the non-bonded portions 77 of the waist stretchable region 79 have mutually parallel inclined portions 72, as in the example shown in FIGS. 19(b) and 19(d). As a result, although there is no left-right symmetry, the folds 80 are formed orderly, and even if the position of the folds 80 in the width direction WD is slightly deviated, the appearance is less affected.

As in the example shown in FIGS. 19(a) and (b), each non-bonded portion 77 having an inclined portion 72 may only have an inclined portion 72 with a constant angle. ), the angle of both side edges of the non-bonded portion 77 with respect to the front-rear direction LD changes at at least one point from the front side of the waist elastic region 79 to the rear side of the waist elastic region 79. is preferred.

For example, in the example shown in FIG. 19(c), a non-bonded portion 77 having an inclined portion 72 includes a first portion P1 extending at an inclination angle θ of 5 to 45 degrees with respect to the front-rear direction LD, and this and a second portion P2 extending at an inclination angle γ of 5 to 45 degrees with respect to the first portion P1. By having such a first portion P1 and a second portion P2, the direction of the moving force applied to the urine or loose stool that has entered the gap 81 is close to the direction of one of the portions (it passes through the inclined portion 72). easy), the direction of the other portion is less close to the direction of the moving force than the direction of the other portion, so the other portion provides more effective resistance to the movement of urine and loose stools. The second portion P2 may not have an inclination angle θ of 5 to 45 degrees with respect to the front-rear direction LD (0 degrees in the example shown), but may have it.

In the example shown in FIG. 19(d), both side edges of each non-bonded portion 77 continuously change in inclination angle δ with respect to the front-rear direction LD over the entire length direction, that is, are curved like an arc. shape. As a result, even if the direction of the moving force applied to the urine or loose stool that has entered the gap 81 is close to the direction of the location with the gap 81 (the location is likely to pass through), it will not be close to the direction of other locations. This other location provides more effective resistance to movement of urine and loose stools. Therefore, the above-described leakage prevention property is further enhanced.

In order to improve both breathability and leak prevention, it is preferable that the folds 80 formed in the waist elastic region 79 have high rigidity. Thus, rather than being attached as a top layer having portions exposed to the surface, as in the example shown in FIGS. It is preferable to sandwich it between appropriate members between the nonwoven fabric 12 . That is, it is preferable to provide one or more cover sheet layers (the intermediate sheet 40 and the top sheet 30 in the illustrated example) on the first sheet layer 73. In this case, as shown in FIG. The cover sheet layer is joined to the first sheet layer 73, and the first sheet layer 73 and the cover sheet layer are shrunk integrally to form folds 80 on the surface of the waist elastic region 79 (made of the cover sheet layer). The Rukoto.

(storage space)
As shown in an enlarged view in FIG. 8, a linear first bent portion 91 extending in the width direction WD from the front edge of one rear lying portion 67b to the front edge of the other rear lying portion 67b; A first region 10 which is a region adjacent to the rear side of the first bent portion 91 and which has a linear second bent portion 92 extending in the width direction WD away from the front side of the first bent portion 91 , and the first bent portion 91 . and the second bent portion 92, and the waist elastic region 79 is preferably provided at least between the left and right rear lying portions 67b.

In this case, as shown in FIG. 9B, the contraction force of the gather elastic member 63 of the rise gathers 60 causes the second region 20 to rise from the second bent portion 92, while the first stretchable region 79 of the waist expands and contracts. A portion positioned in the region 10 is pressed against the wearer's skin by contraction in the width direction WD, and the first region 10 is bent backward with respect to the second region 20 at the first bent portion 91 . Therefore, in this connected disposable wearing article, as shown in FIGS. As a result of being pressed, the trailing edge of the absorbent body 56 and its front and rear vicinity are recessed over almost the entire width of the absorbent body 56, and a deep and wide storage space 21 (pocket) is firmly formed. In addition, the second region 20 rises on the waist side of the depression that becomes the storage space 21, and the first region 10 on the rear side thereof is pressed against the wearer's skin, thereby preventing the backward movement of excrement. The damming effect is high, and it becomes difficult for excrement to flow into the gaps 81 between the adjacent folds 80 in the first region 10 .

In particular, when the sloped portion 72 of the non-bonded portion 77 described above extends rearwardly from at least the front edge of the first region 10 , a sloped fold 80 formed by the sloped portion 72 exists from the front edge of the first region 10 . As a result, movement suppression of excrement acts from the front end portion of the first region 10, and backward leakage of excrement can be prevented more effectively, which is preferable. In this case, the longitudinal dimension of the portion of the inclined portion 72 extending rearward from the front edge of the first region 10 may be appropriately determined, but is preferably 3 cm or more, for example.

The waist elastic region 79 is provided only in the first region 10 as shown in the examples shown in FIGS. Alternatively, it may be provided over the first region 10 and the second region 20 as shown in FIGS. 8 and 9 and the like. As the latter, in addition to the form in which the waist elastic film 71 is provided so as to extend over the first region 10 and the second region 20 as in the examples shown in FIGS. A mode in which the

elastic films

71A and 71B are separately provided in the first region 10 and the second region 20 is also included.

If the front edge of the back lying portion 67b (the position of the first bent portion 91) is positioned forward of the front edge of the waist stretchable region 79, it will be pushed forward of the front edge of the waist stretchable region 79 pressed against the skin. Since the rear lying portion 67b, which is less fitting to the skin, extends out, leakage may occur through the rear lying portion 67b. On the other hand, as in the examples shown in FIGS. 8 and 9, etc., the waist elastic region 79 is provided in the first region 10 and the second region 20 (that is, the position of the front edge of the rear lying portion 67b is , the same as or behind the front edge of the waist elastic region 79), and the front edge of the waist elastic region 79 that is pressed against the skin. The part 67b does not exist, and the raised part 68 that fits well to the skin is positioned. Therefore, as the second region 20 rises, the rising portions 68 of the rising gathers 60 rise continuously from both sides of the second region 20, resulting in more excellent leakage prevention.

When the waist elastic region 79 is provided over the first region 10 and the second region 20, the portion of the waist elastic region 79 located in the second region 20 extends in the width direction WD as shown in FIGS. It is preferable that folds 80 extending from the first bent portion 91 toward the second bent portion 92 are repeatedly formed on the surface of the second region 20 in the contracted state in the width direction WD. This increases the rigidity of the second region 20 and makes it difficult for the storage space 21 to collapse. Further, if the folds 80 extending from the first bent portion 91 toward the second bent portion 92 are repeatedly formed on the surface of the second region 20 in the width direction WD, the second region 20 may Even if 20 falls down on the crotch side (on the surface of the portion having absorber 56), gaps 81 between adjacent folds 80 maintain storage space 21 to some extent.

The distance in the front-rear direction LD between the position of the first bent portion 91 and the position of the second bent portion 92 (equal to the dimension in the front-rear direction LD of the second region 20) affects the depth of the formed storage space 21. Therefore, it can be determined appropriately according to the product. For example, in a normal case, the distance in the front-rear direction LD between the position of the first bent portion 91 and the position of the second bent portion 92 can be 10 to 40 mm, particularly 20 to 30 mm.

The position of the front edge of the waist stretchable region 79 in the front-rear direction LD can be determined as appropriate. It is preferably 0.2 to 0.5 times the dimension of the flap EF in the longitudinal direction LD. Also, the interval 79a between the front edge of the waist stretchable region 79 and the front edge of the rear lying portion 67b can be determined as appropriate, but is preferably about 0 to 15 mm.

As long as the waist elastic region 79 is formed at least between the left and right rearward lying portions 67b of the end flaps EF, it may be provided, for example, only partially between the left and right rearward lying portions 67b. However, if the waist elastic region 79 extends at least to the left and right rear lying portions 67b (more preferably to the base portion 65) as shown in the figure, the position between the left and right rise gathers 60 in the first region 10 The portion to be worn is firmly pressed against the wearer's skin over the entire width direction WD. Therefore, it is preferable because it becomes more excellent in leakage prevention. From the same point of view, the distance 79b in the front-rear direction LD between the rear edge of the waist elastic region 79 and the rear edge of the end flap EF is preferably 17 mm or less.

The gathered elastic members 63 do not have to be positioned on the absorbent body 56 in the unfolded state. The contractile force of the gather elastic member 63 acts more directly on the second region 20, making it easier for the second region 20 to rise from the rear edge of the absorber 56, which is preferable.

20, when the first waist elastic film 71A located in the first region 10 and the second waist elastic film 71B located in the second region 20 are separately provided, the first It is also preferable that the elongation rate of the second waist elastic film 71A is 1.05 to 1.15 times the elongation rate of the second waist elastic film 71B. In this case, not only does the presence of the second waist elastic film 71B improve the rigidity, but the portion of the second region 20 that overlaps the waist stretchable region 79 is wrinkled in the vertical direction, and the compression increases the rigidity. Therefore, the storage space 21 is less likely to be crushed, which is preferable.

When a stretchable sheet 70 containing a waist elastic film 71 is used, as in the example shown in FIG. The front edge of the stretchable sheet 70 may be aligned), the stretchable sheet 70 exists over the entire front-rear direction LD of the second region 20, and the rigidity is increased. Therefore, the second region 20 is firmly raised, and the storage space 21 is less likely to be crushed. Also, if there is a gap between the front edge of the elastic sheet 70 and the rear edge of the absorbent body 56, the gap may appear thin and easy to leak depending on the user. It is preferable that it overlaps the front end of the elastic sheet 70 because it does not give an uneasy appearance to the user.

If the second region 20 is a region that does not have the absorber 56 as in the examples shown in FIGS. 7 to 9, even if the second region 20 falls to the crotch side at the second bent portion 92, the thickness is almost increased. It is preferable because it does not. However, as in the example shown in FIG. 21, in addition to the main absorbent body 56A provided in the third region 33 adjacent to the front side of the second bent portion 92, the auxiliary absorbent body 56B is provided in the second region 20, The rigidity of the second region 20 can also be increased. As a result, the second region 20 is firmly raised, the retention space 21 is less likely to collapse, and the liquid content of the excrement introduced into the retention space 21 can be absorbed and retained by the auxiliary absorber 56B of the second region 20. . As the auxiliary absorbent body 56B, the same material and structure as those of the main absorbent body 56A can be adopted.

(First bent portion)
It is preferable that the first bent portion 91 is a portion having lower rigidity than the first region 10 and the second region 20 and being easily broken. As a result, the bent position of the first bent portion 91 is less likely to shift forward, and the shape and position of the storage space 21 can be easily maintained. In addition, even if the bent position shifts to the front side of the first bent portion 91 due to an external force that is temporarily applied during use or when the product is packaged, the first bent portion 91 is likely to break even if the first bent portion 91 is slightly creased. Therefore, when the external force is released, the bent position returns to the first bent portion 91, and the shape and position of the storage space 21 are easily maintained. Note that the rigidity of each portion can be measured by the Gurley method as in Patent Document 1.

The first bent portion 91 is a linear portion extending in the width direction WD from the front edge of one rear lying portion 67b to the front edge of the other rear lying portion 67b. can. It is preferable that the dimension of the first bent portion 91 in the front-rear direction LD is narrow, and in a normal case, it is preferably about 1 to 3 mm.

Although the means for making the first bent portion 91 a portion having lower rigidity than the first region 10 and the second region 20 is not particularly limited, the following two means are typically conceivable.

The first means utilizes the fact that a bonding means such as a hot-melt adhesive or welding improves rigidity, and the bonding amount (adhesive amount or welding amount) at the first bent portion 91 is changed between the first region 10 and the It is made smaller than that of the second region 20 . FIG. 8 and others show a specific example thereof, in which the first sheet layer 73 and the second sheet layer 74 are continuous across the first bent portion 91 in the first region 10 and the second region 20 . , the first bent portion 91 is not provided with the joint portion 75, and the joint portion 75 and the non-joint portion 77 are provided adjacent to the first region side and the second region side of the first bent portion 91, respectively. there is

With such a structure, the portion where the joint 75 exists has relatively high rigidity, and the portion where the joint 75 does not exist has relatively low rigidity. As a result, it is possible to form the low-rigidity first bent portion 91 with a simple structure that employs a specific pattern of the joint portions 75 . If the waist elastic film 71 is also provided in the second region 20 as in the illustrated example, the stiffness of the second region 20 increases due to contraction in the width direction WD, so the retention of the storage space 21 is improved. It is preferable because it improves further. From the viewpoint of improving rigidity, it is preferable that the joint portion 75 is formed by welding the first sheet layer 73 , the waist elastic film 71 and the second sheet layer 74 .

The second means is to make the number of stacked members in the first bent portion 91 smaller than those in the first region 10 and the second region 20 . FIG. 20 shows a specific example thereof, in which a first waist elastic film 71A and a second waist elastic film 71B are arranged in the first region 10 and the second region 20, respectively. The film 71A and the second waist elastic film 71B are adjacent to each other with the first bent portion 91 interposed therebetween. It is less than In this case, the first bent portion 91 has relatively low rigidity, and as a result, the bent position is less likely to shift, and the shape and position of the storage space are easily maintained. Furthermore, since the rigidity of the second region 20 increases due to the contraction in the width direction WD, the retention of the storage space 21 is further improved.

Either one of the above two means may be adopted, or both may be adopted.

On the other hand, when the auxiliary absorbent core 56B is provided in the second region 20, if the trailing edge of the auxiliary absorbent core 56B is aligned with the trailing edge of the second region 20, the rigidity between the first bent portion 91 and the portion on the front side thereof increases. is particularly large, and the bending position is more difficult to shift, which is preferable.

In addition, if the waist elastic film 71 continues across the first bent portion 91, bending inhibition at the first bent portion 91 is likely to occur. Therefore, from such a point of view, it is preferable not to provide the waist elastic film 71 in the second region 20 although the waist elastic film 71 is provided in the first region 10 as in the example shown in FIGS. . In this case, since the waist elastic film 71 does not improve the rigidity of the second region 20, the waist elastic film 71 is attached as the elastic sheet 70 sandwiched between the first sheet layer 73 and the second sheet layer 74, Preferably, at least one of the first sheet layer 73 and the second sheet layer 74 is present from the first region 10 to the second region 20 and the waist elastic film 71 is arranged only within the first region 10 .

(Second bent portion)
When the second region 20 is a region without the absorber 56 as in the example shown in FIG. It will be located on the rear side.

It is preferable that the second bent portion 92 is a portion having lower rigidity and easier to break than the second region 20 and the third region 33 adjacent to the front side of the second bent portion 92 . As a result, the bent position of the second bent portion 92 is less likely to shift forward, and the shape and position of the storage space 21 are easily maintained. In addition, even if the bent position shifts to the rear side of the second bent portion 92 due to an external force temporarily applied during use or when the product is packaged, the second bent portion 92 is likely to break. Since there is no change, the bending position returns to the second bending portion 92 when the external force is released, and the shape and position of the storage space 21 are easily maintained. Note that the rigidity of each portion can be measured by the Gurley method as in Patent Document 1.

The second bent portion 92 is a linear portion extending in the width direction WD away from the first bent portion 91 to the front side, and its dimension in the front-rear direction LD can be appropriately determined. The dimension of the second bent portion 92 in the front-rear direction LD is preferably narrow, and is preferably about 1 to 3 mm in normal cases.

Although the means for making the second bent portion 92 a portion with lower rigidity than the second region 20 is not particularly limited, the following three means are typically conceivable.

The first means is to make the second bending portion 92 a portion with lower rigidity than the second region 20 by utilizing the rigidity improvement by joining means such as hot-melt adhesive or welding in the second region 20 . be. FIG. 8 and others show a specific example thereof, in which a first sheet layer 73 and a second sheet layer 74 are provided in the second region 20, and a joint portion 75 is provided in the second bent portion 92. A joint portion 75 and a non-joint portion 77 are provided so as to continue from the front edge of the second bent portion 92 to the second region 20 side.

With such a structure, the front edge of the joint portion 75 is positioned at the front edge of the second region 20, and the portion where the joint portion 75 exists, that is, the portion adjacent to the rear side of the second bent portion 92 has relatively high rigidity due to the presence of the joint 75 . As a result, the rigidity of the second region 20 becomes higher than that of the second bent portion 92 with a simple structure that employs a specific pattern of the joint portions 75 . If the waist elastic film 71 is also provided in the second region 20 as in the illustrated example, the stiffness of the second region 20 increases due to contraction in the width direction WD, so the retention of the storage space 21 is improved. It is preferable because it improves further.

The second means is to make the second bent portion 92 a portion with lower rigidity than the second region 20 by making the number of laminated members in the second bent portion 92 smaller than that in the second region 20 . is. FIG. 20 shows a specific example thereof, in which a waist elastic film 71B (which may be an elastic sheet 70) is attached to the second region 20, and the front edge of the waist elastic film 71B is attached to the front edge of the second region 20. The second bent portion 92 is not provided with the waist elastic film 71B.

With such a structure, the portion where the waist elastic film 71B (or the elastic sheet 70) is located, that is, the portion adjacent to the rear side of the second bent portion 92 has relatively high rigidity due to the presence of the waist elastic film 71B. Become. Therefore, the rigidity of the second region 20 can be made higher than that of the second bent portion 92 with a simple structure in which the waist elastic film 71B is arranged in a specific manner. Furthermore, since the rigidity of the second region 20 increases even when contracted in the width direction WD, the storage space 21 is less likely to collapse.

A third means is to make the second bending portion 92 a portion with lower rigidity than the second region 20 by utilizing the rigidity improvement by the absorber 56 in the second region 20 . FIG. 21 shows a specific example thereof, in which an auxiliary absorbent body 56B is provided in the second region 20, and the front edge of the auxiliary absorbent body 56B is aligned with the front edge of the second region 20. As shown in FIG. The second bent portion 92 is a portion that does not have the absorbent body 56 and is positioned between the main absorbent body 56A and the auxiliary absorbent body 56B. With such a structure, the portion where the auxiliary absorbent member 56B is located, that is, the portion adjacent to the rear side of the second bent portion 92 has relatively high rigidity due to the presence of the auxiliary absorbent member 56B. Therefore, the rigidity of the second region 20 can be made higher than that of the second bent portion 92 with a simple structure in which only the auxiliary absorbent body 56B is provided.

Any one of the above three means may be adopted, or a plurality of them may be adopted.

Further, the means for making the second bent portion 92 a portion having lower rigidity than the third region 33 is not particularly limited, but as shown in the illustrated example, the improved rigidity of the absorber 56 in the third region 33 is used to It is preferable that the second bent portion 92 has a lower rigidity than the third region 33 . That is, in the example shown in FIG. 8 and the like, the rear edge of the absorbent body 56 (or the main absorbent body 56A in the example shown in FIG. 21) matches the rear edge of the third region 33, and the second bent portion 92 has Absorber 56 is not provided. In this case, the stiffness of the third region 33 having the absorbent body 56 is relatively high, whereas the stiffness of the second bent portion 92 having no absorbent body 56 is low. The rigidity of the third region 33 can be made higher than that of the second bent portion 92 with a simple structure that only needs to be bent.

(non-woven fabric)
As the nonwoven fabric in the above description, a known nonwoven fabric can be appropriately used depending on the site and purpose. Constituent fibers of non-woven fabrics include, for example, polyolefin-based fibers such as polyethylene or polypropylene, polyester-based synthetic fibers such as polyamide-based fibers (including composite fibers such as core-sheath fibers in addition to single-component fibers), as well as recycled rayon and cupra. Fibers, natural fibers such as cotton, etc., can be selected without particular limitation, and these can also be mixed and used. In order to increase the softness of the nonwoven fabric, it is preferable to use crimped fibers as the constituent fibers. In addition, even if the constituent fibers of the nonwoven fabric are hydrophilic fibers (including those made hydrophilic by a hydrophilic agent), they may be hydrophobic fibers or water-repellent fibers (water-repellent fibers made water-repellent by a water-repellent agent). including). In addition, nonwoven fabrics are generally classified into short fiber nonwoven fabrics, long fiber nonwoven fabrics, spunbond nonwoven fabrics, meltblown nonwoven fabrics, spunlace nonwoven fabrics, thermal bonded (air-through) nonwoven fabrics, and needle punched nonwoven fabrics, depending on the fiber length, sheet forming method, fiber bonding method, and laminate structure. Nonwoven fabrics are classified into nonwoven fabrics, point-bonded nonwoven fabrics, laminated nonwoven fabrics (including SMS nonwoven fabrics in which a meltblown layer is sandwiched between spunbond layers, SMMS nonwoven fabrics, etc.), etc., and any of these nonwoven fabrics can be used.

<Description of terms in the specification>
The following terms in the specification have the following meanings unless otherwise specified in the specification.

・"Front-back direction" means the direction (longitudinal direction) indicated by symbol LD in the figure, and "width direction" means the direction (left-right direction) indicated by WD in the figure. are orthogonal.

・"MD direction" and "CD direction" mean the flow direction (MD direction) and the transverse direction (CD direction) perpendicular to this in the manufacturing equipment, and one of them is the front-back direction depending on the part of the product and the other is the width direction. The MD direction of a nonwoven fabric is the direction of fiber orientation of the nonwoven fabric. The fiber orientation is the direction along which the fibers of the nonwoven fabric are aligned. It can be determined by a simple measurement method for determining the orientation direction.

· "Front side" means the side closer to the wearer's skin when worn, and "back side" means the side farther from the wearer's skin when worn.

"Front" means the side of the member that is closer to the wearer's skin when worn, and "back" means the side of the member that is farther from the wearer's skin when worn. .

· "Elongation rate" means a value when the natural length is 100%. For example, an elongation rate of 200% is synonymous with an elongation ratio of 2 times.

· "Gel strength" is measured as follows. Artificial urine (urea: 2 wt%, sodium chloride: 0.8 wt%, calcium chloride dihydrate: 0.03 wt%, magnesium sulfate heptahydrate: 0.08 wt%, and deionized water: 97.09 wt% 1.0 g of superabsorbent polymer is added to 49.0 g of the mixture) and stirred with a stirrer. The resulting gel is left in a thermo-hygrostat at 40° C. and 60% RH for 3 hours, then returned to room temperature, and the gel strength is measured with a card meter (manufactured by I. Techno Engineering: Curdmeter-MAX ME-500).

· "Metsuke" is measured as follows. After pre-drying the sample or test piece, it is left in a test room or apparatus under standard conditions (test location: temperature 23±1° C., relative humidity 50±2%) to a constant weight. Pre-drying refers to making a sample or test piece constant weight in an environment at a temperature of 100°C. Fibers with an official moisture content of 0.0% do not need to be pre-dried. Using a sampling template (100 mm x 100 mm), a sample with dimensions of 100 mm x 100 mm is cut from the constant weight specimen. The weight of the sample is measured, multiplied by 100 to calculate the weight per square meter, and used as the basis weight.

- "Thickness" is automatically measured using an automatic thickness gauge (KES-G5 handy compression measurement program) under the conditions of a load of 0.098 N/cm ² and a pressurized area of 2 cm ² . The thickness of the perforated nonwoven fabric is measured at portions other than the perforations and the protrusions around them.

· The amount of water absorption is measured according to JIS K7223-1996 "Testing method for water absorption of superabsorbent resin".

・The water absorption rate is the "time to the end point" when JIS K7224-1996 "Test method for water absorption rate of superabsorbent resin" is performed using 2g of superabsorbent polymer and 50g of physiological saline. .

The direction of fiber orientation of the nonwoven fabric is the direction along which the fibers of the nonwoven fabric are aligned. It can be determined by a simple measuring method that determines the fiber orientation direction from the tensile strength ratio.

・The "deployed state" means a flat state without contraction (including any contraction such as contraction due to elastic members) or slack.

・Unless otherwise specified, the dimensions of each part mean the dimensions in the unfolded state, not in the natural length state.

・If there is no description about environmental conditions for testing and measurement, the test and measurement shall be performed in a laboratory or equipment under standard conditions (test location: temperature 23±1°C, relative humidity 50±2%). do.

The present invention can be applied to connected disposable wearing articles such as the tape-type disposable diaper in the above example.

B... dorsal part, EF... end flap, F... ventral part, LD... longitudinal direction, SF... side flap, WD... width direction, WP... wing part, θ, γ... angle of inclination, 10... first area, DESCRIPTION OF SYMBOLS 11... Liquid-impermeable sheet 12... Exterior nonwoven fabric 12T... Target sheet 13... Connection tape 13A... Connection part 13B... Main part 13C... Base end part 20... Second region 21... Storage space, 30... Top sheet 33... Third region 40... Intermediate sheet 50... Absorbent element 56... Absorbent body 58... Wrapping sheet 60... Raised gather 62... Gathered sheet 63... Gathered elastic member 65... Attached Root part 66 Main part 67b Backward lying part 67f Forward lying part 68 Rising part 70 Elastic sheet 71 Waist elastic film 72 Inclined part 73 First sheet layer 74 Second 2 sheet layers, 75...joint portion, 76...fixed portion, 77...non-joint portion, 79...waist expansion/contraction region, 80...fold, 81...gap, 91...first bent portion, 92...second bent portion, 56A... Main absorber, 56B... Auxiliary absorber.

Claims

Having a crotch portion including the center in the front-rear direction, a ventral portion extending forward from the center in the front-rear direction, and a dorsal portion extending rearward from the center in the front-rear direction,
an absorber embedded in a range including the crotch;
connecting portions provided on both sides of the dorsal portion and detachably connected to the outer surface of the ventral portion;
an end flap extending rearward from the position of the trailing edge of the absorbent body,
The end flaps include a waist elastic film extending in the front-rear direction and the width direction, a first sheet layer adjacent to the front side of the waist elastic film, and a second sheet layer adjacent to the back side of the waist elastic film,
The portion having the waist elastic film has a waist elastic region that shrinks in the width direction together with the waist elastic film and is stretchable in the width direction,
The first sheet layer, the waist elastic film, and the second sheet layer, which are continuously or intermittently provided linearly from the front side of the waist elastic region to the rear side of the waist elastic region. The joint portion and the non-joint portion of the first sheet layer, the waist elastic film, and the second sheet layer, which are elongated and continuous from the front side of the waist elastic region to the rear side of the waist elastic region, extend in the width direction. is provided so as to alternately repeat
When the waist elastic region is contracted, the waist elastic region is formed on the surface of the waist elastic region as the first sheet layer and the second sheet layer in the non-bonded portion swell in opposite directions. Continuous folds are formed repeatedly in the width direction from the front side to the back side of the waist elastic region,
At least one non-joint portion has an inclined portion extending such that both side edges have an inclination angle of 5 to 45 degrees with respect to the front-rear direction,
An articulated disposable wearing article characterized by:
All of the non-joint portions have the inclined portion over the entire front-rear direction,
The non-bonded portion having the inclined portion is repeatedly formed from a region on the right side of the center in the width direction to a region on the left side of the center in the width direction,
The slanted portion of the right region and the slanted portion of the left region are each slanted so as to be positioned toward the center in the width direction toward the waist.
The articulated disposable wearing article according to claim 1.
All of the non-joint portions have the inclined portion over the entire front-rear direction,
all the non-joint portions of the waist elastic region have slopes parallel to each other,
The articulated disposable wearing article according to claim 1.
All of the non-joint portions have the inclined portion over the entire front-rear direction,
The non-bonded portion having the inclined portion has at least one point from the front side of the waist elastic region to the rear side of the waist elastic region, and the angle of both side edges with respect to the front-back direction changes.
The connectable disposable wearing article according to any one of claims 1 to 3.
The joint portion is linearly continuous from the front side of the waist elastic region to the rear side of the waist elastic region at least other than the first bent portion.
The connectable disposable wearing article according to any one of claims 1 to 4.
a riser gather that rises from the surface along the excrement blocking positions on both sides in the width direction,
The rising gather includes a root portion attached to the outside of the blocking position in the width direction, a main portion extending from the root portion, and a front end portion and a rear end portion of the main portion fixed in a fallen state. a front lodge portion and a rear lodge portion formed; a rising portion formed by unfixing a portion between the front lodge portion and the rear lodge portion in the main portion; a gathering elastic member;
At least a tip portion of the rising portion contracts in the front-rear direction together with the gathering elastic member and is expandable in the front-rear direction,
A linear first bent portion extending in the width direction from the front edge of one of the rear lodge portions to the front edge of the other rear lodge portion, and a linear bend extending in the width direction away from the first bend portion to the front side. and a second bend of
Having a first region that is a region adjacent to the rear side of the first bent portion and a second region that is a region between the first bent portion and the second bent portion,
The waist elastic region is formed at least in the first region,
As the rising portion shrinks, the second region rises starting from the second bending portion, and the first region bends backward with respect to the second region at the first bending portion. cage,
The joint portion and the non-joint portion are provided such that the crease and the gap between the adjacent creases extend rearward from at least the front edge of the first region.
The connectable disposable wearing article according to any one of claims 1 to 5.
The inclined portion extends rearward from at least the front edge of the first region,
The articulated disposable wearing article according to claim 6.
The waist elastic region is formed in the first region and the second region,
The waist elastic film is individually provided in the first region and the second region,
The elastic film in the first region and the elastic film in the second region are adjacent to each other across the first bent portion,
The connectable disposable wearing article according to claim 6 or 7.
The first sheet layer and the second sheet layer extend to a position spaced forward from the trailing edge of the second region,
The joint portion is not provided in the first bending portion, and is provided adjacent to the first region side and the second region side thereof,
The connectable disposable wearing article according to claim 6 or 7.
an elastic sheet including the first sheet layer, the second sheet layer and the waist elastic film is attached to a region including the end flaps;
The elastic sheet extends to the front edge of the second region or to the front side thereof,
The waist elastic film is provided in the first region and not provided in the second region,
The connectable disposable wearing article according to claim 6 or 7.
The absorbent body includes a main absorbent body provided in a third region adjacent to the front side of the second bent portion and an auxiliary absorbent body provided in the second region,
the trailing edge of the auxiliary absorbent body matches the trailing edge of the second region;
The articulated disposable wearing article according to any one of claims 6 to 10.