JP2008237391A5 - - Google Patents

Description

Disposable diapers

  The present invention relates to a disposable diaper. In particular, the present invention relates to a disposable diaper suitable for combined use with an auxiliary absorbent article such as an absorbent pad.

When using disposable diapers, auxiliary absorbent articles such as absorbent pads and incontinence pads are often used together to reduce the number of replacements of the entire disposable diaper and improve convenience when a small amount of urination such as light urine leakage occurs. (See Patent Documents 1 to 3).
Conventionally, such a fastening mechanism between an auxiliary absorbent article and a paper diaper has been provided with an adhesive means provided on a skin non-contact surface of the auxiliary absorbent article, an engagement means such as a mechanical fastener, and a skin contact of the paper diaper. It was performed by attaching to the surface (for example, Patent Documents 1 and 2 below).
JP 2004-261332 A JP 2002-200105 A JP-A-9-75390

However, in the conventional configuration,
1. When the replacement of the auxiliary absorbent article is repeated, fluffing occurs on the skin contact surface of the paper diaper, and the wearing feeling and absorbency may decrease.
2. The auxiliary absorbent article may not be properly secured at the desired position,
3. There is a possibility that the fastening part of the auxiliary absorbent article may be stuck to an unintended part of the paper diaper.
4). There is a drawback that the auxiliary absorbent article may be displaced after being fixed.
Patent Document 3 discloses a technique in which a suspension piece is provided in the front and back region of a paper diaper and an auxiliary absorbent article is fixed thereto so that it is not directly adhered to the skin contact surface. In the case of Patent Document 3, the suspension piece is in a free state when the auxiliary absorbent article is not used, and the skin contact surface may be fluffed by the fastening portion formed on the suspension piece. There is a possibility that the wearing feeling may be deteriorated by directly touching, and the fundamental solution has not been achieved.
Then, the main subject of this invention is providing the absorbent articles, such as a paper diaper which solved the problem of the said conventional product.

The present invention that has solved the above-described problems and the effects thereof are as follows.
<Invention of Claim 1>
A disposable diaper in which the front and back are connected via the crotch,
Having a flap portion extending in the width direction on at least one use surface of the front body and the back body,
Having a pocket formed by a flap part and a surface constituting sheet;
At the flap portion facing position of the surface constituting sheet, it has a fastening portion for fastening the auxiliary absorbent article,
At the position facing the fastening portion on the pocket inner surface side of the flap portion, it has a temporary fastening portion that is detachably attached to the fastening portion.
A disposable diaper characterized by that.

(Function and effect)
In the present invention, since there is a fastening portion of the auxiliary absorbent article in the pocket of the disposable diaper, the fastening portion is formed on the back surface of the target auxiliary absorbent article, or the fastening portion on the back surface of the auxiliary absorbent article is provided. There is no need to use it.
And this fastening part is not directly exposed to the skin contact surface. Therefore, when the auxiliary absorbent article is not used, the fastening portion does not feel uncomfortable with the skin, and even if the auxiliary absorbent article is attached and detached multiple times, In the invention, such fluff does not hit the skin. The disposable diaper of the present invention does not have a decrease in touch feeling due to the non-use of the auxiliary absorbent article and multiple use.
On the other hand, since the flap portion is clearly present on the skin contact surface side, the auxiliary absorbent article can be reliably fixed at an appropriate position. Moreover, since it becomes the aspect which a part of auxiliary absorbent article fits in a pocket, the shift | offset | difference of an auxiliary absorbent article is also prevented.
The pocket part can be sealed by temporarily adhering the temporary fixing part and the fastening part, and the movement of the flap part can be restricted. The flap part does not turn up unnecessarily and has excellent handling properties.
Furthermore, in particular, when the fastening portion is disposed only on the surface-constituting sheet, the fastening portion is covered with the flap sheet so that it does not directly touch the skin and is positioned far from the skin. The influence on the skin by chemical substances such as hardness, level difference, pressure-sensitive adhesive and adhesive is reduced, and the effect gentle to the skin becomes more remarkable.

<Invention of Claim 2>
The disposable diaper has a pair of standing cuffs arranged along the longitudinal direction on both sides in the width direction,
Both front-back ends of the standing cuffs, it is in a position overlapping the pocket inner surface of the flap portion, or has a pocket inner surface integral of the flap portion, the disposable diaper of claim 1, wherein.

(Function and effect)
Since the standing cuff and the flap portion are integrated, a cuff surrounded by the front, rear, left and right is formed on the skin contact surface, so that the leakage prevention effect is enhanced.

<Invention of Claim 3>
The disposable diaper according to claim 1 or 2 , wherein the flap portion is formed of a sheet that is temporarily attached to the fastening portion in a detachable manner, and the temporary fastening portion is constituted by the sheet itself that constitutes the flap portion .

<Invention of Claim 4>
The length of the opening edge of a flap part is a disposable diaper of any one of Claims 1-3 longer than the width | variety of a pocket part.

(Function and effect)
Since the opening edge is separated from the surface-constituting sheet when the temporary adhesion is released, the edge of the auxiliary absorbent article can be easily inserted, and the auxiliary absorbent article can be easily attached.

<Invention of Claim 5>
The disposable diaper according to any one of claims 1 to 4, wherein the flap portion is provided with an elastic elastic member extending in the width direction in the vicinity of the opening edge.

(Function and effect)
Due to the action of the elastic elastic member, the opening edge can be easily separated from the surface constituting sheet, so that the edge of the auxiliary absorbent article can be easily inserted, and the auxiliary absorbent article can be easily detached.

<Invention of Claim 6>
The disposable diaper according to any one of claims 1 to 5, wherein the fastening part and the temporary fastening part are constituted by a pair of male and female mechanical fasteners.

(Function and effect)
Manufacture becomes easy, and there is no decrease in temporary adhesive force due to repeated temporary bonding and re-peeling.

<Invention of Claim 7>
The said fastening part is what has adhesiveness, The temporary fixing part is a mold release process part or film sheet part which can adhere | attach with peelability with respect to the adhesiveness of a fastening part, Any of Claims 1-6 The disposable diaper of Claim 1.

(Function and effect)
Manufacture becomes easy, and there is no decrease in temporary adhesive force due to repeated temporary bonding and re-peeling. Further, the opening edge is easily separated from the surface-constituting sheet, so that the edge of the auxiliary absorbent article can be easily inserted, and the auxiliary absorbent article can be easily detached.

  According to the present invention, due to repeated replacement of the auxiliary absorbent article, the skin contact surface of the paper diaper becomes fuzzy, the feeling of wear and absorbency is reduced, the auxiliary absorbent article may not be properly fixed at a desired position, Disposable diapers are provided which have improved conventional drawbacks such as the possibility that the fastening portion of the absorbent article may be stuck to an unintended portion of the paper diaper, and the shift of the auxiliary absorbent article after the fastening.

Next, embodiments of the present invention will be described in detail below with reference to the drawings.
“First Embodiment”
The disposable diaper X1 which concerns on 1st Embodiment is shown to FIGS. 1 to 3 are basic examples of this embodiment, and FIGS. 4 to 5 are variations of the flap portion. Hereinafter, a variation of the flap portion will be mentioned while mainly explaining a basic example.

(Basic example)
As shown in FIG. 1, the disposable diaper X <b> 1 of this embodiment has a front appearance F located on the abdomen side of the wearer, a back body B located on the back side, and a front body F and a back body B as shown in FIG. 1. This is a so-called tape-type disposable diaper X1 including a diaper main body Z having a crotch portion M and a pair of left and right engaging pieces 4, 4 connected to left and right side edges of the back body B of the diaper main body Z.
In this embodiment, the locking pieces 4 and 4 are formed by bonding male material sheets 41 and 41 of mechanical fasteners to a nonwoven fabric sheet, and a locking portion (not shown) to which the locking pieces 4 and 4 are locked. Is formed of a female material sheet of a mechanical fastener adhered to the outer surface side of the front body F.
In addition, the structure used for the known tape-type disposable diaper can be selected suitably for the structure of the latching pieces 4 and 4 and the latching | locking part to which this is latched.

The diaper main body Z has a layer structure in which an absorbent body 3 is interposed between a liquid-permeable top sheet 1 constituting the surface and a liquid-impervious back sheet 2 constituting the back surface. The front and rear end portions and both side portions of the top sheet 1 and the liquid-impervious back sheet 2 are extended outward from the absorbent body 3, and both the sheets are joined at the extended portions. . The joining method is not particularly limited. According to known methods. For example, hot melt bonding, ultrasonic sealing, heat sealing (thermal fusion), heat pressing (thermocompression bonding), or a combination thereof can be used.
On the other hand, the planar outer shape of the diaper main body Z is, as shown in the drawing, formed with leg periphery edges EL, EL that are recessed in the front and rear direction center portions on both sides and curved in the center in the width direction. , EL forms a substantially hourglass-shaped planar outer shape in which an abdominal waistline portion and a back waistline portion which are wider than between both side leg periphery edges EL, EL are formed on the edge side in the front-rear direction.
In this embodiment, similarly to the diaper main body Z, the absorbent body 3 also has a planar outer shape in which the center portions in the front-rear direction on both sides are notched, and the fit to the leg periphery is enhanced.

On the both sides in the width direction of the diaper main body Z, leg elastic elastic members 6, 6... Are fixed in an extended state along the front-rear direction. In this embodiment, the leg elastic elastic members 6, 6... Are arranged between the front and back sheets, and are arranged so as to constitute a so-called flat gather. The elastic elastic members around the legs can be fixed to adjacent appropriate sheets using a hot melt adhesive or the like.
The leg elastic members 6, 6... Are arranged so as to be slightly curved toward the center in the width direction of the diaper main body Z along the leg periphery EL. It is located on the edge side in the front-rear direction about 0 to 50 mm from the peripheral edges EL.
As is apparent from the figure, a plurality of leg elastic members 6, 6... Can be arranged, and the number in this case is preferably about 2 to 8. Moreover, it is good that the space | interval of an adjacent leg periphery elastic elastic member shall be 4-10 mm.
Due to the presence of the leg elastic members 6, 6..., The leg peripheral edge is pushed up to the skin contact surface side with elastic elasticity, and fits effectively around the wearer's leg.

On the other hand, in the diaper main body Z, a substantially rectangular flap sheet 5 is joined to the liquid-permeable surface sheet 1 in a three-way closed state with the crotch M side opened in each of the front body F and the back body B. (The joint portion of the flap sheet is represented as 5c in the figure), and the free part (flap portion 5F) of the flap sheet 5 and the liquid-permeable surface sheet 1 Thus, a pocket P into which the edge of the auxiliary absorbent article is inserted is formed.
The flap sheet 5 may be liquid-permeable or liquid-impermeable, but preferably exhibits liquid-permeability.
The flap sheet 5 is joined to the liquid-permeable surface sheet 1 by a known method. For example, the above-described hot melt bonding, ultrasonic sealing, heat sealing (thermal fusion), heat pressing (thermocompression bonding), or a combination thereof can be used.

  The position of the pocket P formed by the flap portion 5F is such that the distance L1 from the longitudinal edge E of the diaper main body Z to the pocket bottom side edge is in the range of 0 to 40 cm, regardless of the size of the diaper main body Z. Good. The pocket width L3 is preferably about 20% or more of the diaper body width, and the depth L2 is preferably about 2 to 10%. However, it is not necessary to have the same distance between the front and back bodies. With such a position and size, a part of the auxiliary absorbent article such as an absorbent pad can be surely easily stored in the pocket P, and when the auxiliary absorbent article is not used, it prevents back leakage and abdominal leakage. An effect is obtained.

On the other hand, a fastening portion 7 having fastening properties with respect to the auxiliary absorbent article is provided on the inner surface side (pocket portion side) of the flap portion 5F.
The fastening portion 7 is a portion having mechanical engagement, adhesiveness, adhesiveness, and the like that can attach the auxiliary absorbent article to the position of the flap portion 5F in a replaceable manner. It can design appropriately according to the exterior material etc. of the auxiliary absorbent article. Since it can be widely used for general auxiliary absorbent articles, it can be formed by adhesive application / coating, male / female sheets of mechanical fasteners, arrangement of adhesive sheets, etc. Is good.
The fastening portion 7 may be formed on the entire inner surface of the flap portion 5F, may be formed in a scattered manner, or may be formed in a line shape along the opening edge. The shape of the fastening portion is not particularly limited.

On the other hand, at least a portion of the liquid-permeable surface sheet 1 that faces the fastening portion 7 is provided with a temporary fastening portion 8 that is detachably attached to the fastening portion 7.
The specific configuration of the temporary fixing portion 8 is appropriately determined in relation to the fixing portion 7. For example, if the fastening portion 7 is configured by arranging a male material sheet of a mechanical fastener, it is configured by arranging a female material sheet of a mechanical fastener that can be detachably engaged with the male material. If the fastening part 7 is constituted by application / coating of an adhesive or arrangement of an adhesive sheet, application / coating of a release treatment agent having releasability to the adhesive, polyethylene film, polypropylene It is comprised by arrangement | positioning of film sheets, such as a film and a silicon film.
In the case where the release treatment agent is applied / coated at the corresponding position, the release treatment agent to be used is used for absorbent articles in consideration of the relationship with the adhesive constituting the fastening portion. What is necessary is just to select suitably from the known mold release processing agents currently used. Examples thereof include silicon, long-chain alkyl polymer, polyolefin, alkyd resin, fluorine compound and the like as main components.
The peel strength between the fastening part 7 and the temporary fastening part 8 is preferably designed to be about 0.5 to 5 N / 25 mm.

(Variation example)
Here, some variations other than the basic example of the configuration of the flap portion 5F and the like are illustrated. Both the flap part 5F and the liquid-permeable surface sheet 1 can be configured to have a fastening part 7 and a temporary fastening part, respectively. That is, the fixing part 7 and the temporary fixing part 8 are arranged at different positions on the inner surface of the flap part 5F, and the corresponding temporary fixing part 8 and the fixing part are positioned at the position of the liquid-permeable surface sheet 1 facing them. 7 may be arranged.
When the adhesive fastening part 7 is provided on the liquid-permeable surface sheet 1 side, various film sheets exhibiting releasability are used as the flap sheet 5 so that the flap sheet 5 itself exhibits temporary fixability. It can be configured to be. In this case, the entire pocket inner surface of the flap sheet 5 becomes the temporary fixing portion 8.

In the basic example, the shape of the opening edge 5e of the flap portion 5F is a linear shape so as to be parallel to the width direction of the diaper main body portion Z. FIG. 4 shows the shape of the flap portion 5F. As an example, it can be set as the opening edge shape which curves in circular arc shape toward the pocket part bottom Pb side. In the example of the flap portion 5F, it becomes easier to insert a part of the auxiliary absorbent article into the pocket P than in the basic example.
In the vicinity of the opening edge 5e of the flap portion 5F, an elastic elastic member 5g for raising the flap portion can be disposed in an extended state, as in the example shown in FIG. The number of the elastic elastic members 5g for raising the flap portion is not limited to one as shown in the drawing, and may be a plurality of lengths, and the length may be an appropriate length. Moreover, the length of the opening edge 5e of the flap part 5F can be comprised longer than the width | variety of a pocket part. In these examples, the opening edge 5e of the flap portion 5F is easily separated from the liquid-permeable surface sheet 1. Therefore, in addition to facilitating the desorption operation of the auxiliary absorbent article, for example, when a fastening portion is formed on the liquid-permeable surface sheet 1 side, even when the auxiliary absorbent article is fastened, the auxiliary absorbent article The flap portion is easily separated from the skin contact surface and easily floats, so that an effect of preventing back leakage and abdominal leakage when using the auxiliary absorbent article can be obtained.
On the other hand, in the basic example, the flap part 5F is formed by joining a separate flap sheet 5 to the liquid-permeable surface sheet 1. For example, FIG. 6 shows a partial longitudinal sectional view on the back body side. Like the example shown, the edge part of the liquid-permeable top sheet 1 can be turned up, and the flap part 5F and the pocket P can be formed.

(Constituent material)
Next, the material constituting the disposable diaper of this embodiment will be described.
First, the liquid-permeable surface sheet 1 includes a net-like sheet material obtained by plain weaving of threads such as nylon and polyethylene terephthalate, a film sheet material in which a large number of through holes are formed, a film sheet material such as polyethylene and polypropylene, and a liquid-permeable material. Suitable woven fabrics and nonwoven fabrics are suitable, and nonwoven fabrics are particularly suitable. Nonwoven fabrics can be made from synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, regenerated fibers such as rayon and cupra, and natural fibers such as cotton. Spunlace method, spunbond method, thermal bond Processed by an appropriate processing method such as a method, a melt blown method, or a needle punch method can be used.
A layered nonwoven fabric such as an SMS nonwoven fabric, a point bond nonwoven fabric, a plastic film such as a polyethylene film, or a laminated nonwoven fabric obtained by laminating a plastic film and a nonwoven fabric may also be used.
The liquid-impermeable back sheet 2 is a known resin sheet such as polyethylene or polypropylene, in particular, a sheet is formed by kneading an inorganic filler in a resin such as polyethylene or polypropylene, and then stretched uniaxially or biaxially. A microporous resin sheet obtained by doing so is preferably used. The liquid-impermeable back sheet 2 is particularly preferably a laminate of an outer sheet made of a nonwoven fabric or the like on the outer surface of the resinous sheet for improving the touch. The nonwoven fabric sheet that can be used for the exterior sheet is the same as that used for the liquid-permeable surface sheet 1.
The flap sheet 5 can be appropriately selected from those listed as the sheet material of the liquid-permeable top sheet 1 or the liquid-impermeable back sheet 2. Whether to make it liquid-permeable or liquid-impermeable is an appropriate design matter.

The absorbent body 3 can be configured by enveloping an absorbent core in which absorbent polymer is dispersed in fibers such as piled pulp and nonwoven fabric with a permeable sheet such as crepe paper, nonwoven fabric sheet, and perforated sheet.
Examples of the superabsorbent polymer include carboxymethyl cellulose, polyacrylic acid and salts thereof, acrylate polymer cross-linked product, starch-acrylic acid graft copolymer, starch-acrylonitrile graft copolymer hydrolyzate, polyoxyethylene cross-linked product Products, crosslinked products of carboxymethyl cellulose, polyethylene oxide, polyacrylamide and other partially crosslinked polymers, or a copolymer of isobutylene and maleic acid are preferably used. What added the blocking inhibitor in order to suppress the blocking property by moisture absorption of a product can also be used. In addition, the superabsorbent polymer has various forms such as powder, particles, granules, pellets, sol, suspension, gel, film, and nonwoven fabric. Any of them can be used in the present invention, and a particulate material is particularly preferably used.

As the leg elastic elastic member 6 and the elastic elastic member 5g for lifting the flap portion, rubber thread is typically used. As the thread rubber, those made of synthetic rubber or natural rubber and those mainly composed of natural rubber are suitable. In addition to the rubber thread, a material having rubber elasticity, which is formed (molded) into a thread shape, a string shape, a belt shape, a net shape, a foam shape, or the like, including a generally well-known elastomer resin can be used.
As the hot-melt adhesive used for fixing the elastic elastic members 6 and 5 g and joining the sheets 1, 2 and 5, known ones used for this type of disposable diaper can be used. For example, styrene block copolymers, polyurethane block copolymers, polyester block copolymers, polyamide block copolymers, base polymers of copolymer blends, rosin resins, polyterpene resins, terpene phenols Resin, dicyclopentadiene petroleum resin, aliphatic petroleum resin, aromatic petroleum resin, copolymer petroleum resin, alicyclic petroleum resin, xylene resin and elastomer, etc. Those containing at least a plasticizer component such as waxes and an antioxidant as constituent components are suitable.

“Second Embodiment”
Next, a second embodiment will be described. The disposable diaper X2 of 2nd Embodiment is the tape-type disposable diaper X2 which has the standing cuffs 14 and 14 which stand on a wearer's skin side at the time of wear as FIG.
The configuration other than the relationship between the standing cuffs 14 and 14 and the standing cuffs 14 and 14 and the flap portion 5F can be the same as the configuration of the first embodiment X1 including variations and constituent materials.
The standing cuffs 14, 14 of the disposable diaper X2 are mainly composed of standing cuff sheets 40, 40 and standing elastic elastic members 23, 23.

The standing cuff sheets 40, 40 have a fixing start end 14 s at a predetermined position of the liquid-permeable surface sheet 1, outward in the width direction from the fixing start end 14 s toward the joint edge with the liquid-impermeable sheet 2. The portion is appropriately fixed with a non-peelable adhesive or the like. The fixing start end 14 s forms a start end line 14 s of the standing cuff 14.
One tip side is shortly folded to the inner surface side to be doubled, and the two elastic elastic members 23 and 23 for lifting are wrapped with an adhesive or the like to form a tip portion.
The front and rear end portions of the standing cuff sheet 40 are fixed to the surface of the liquid-permeable surface sheet 1 with the free portion leading toward the center in the width direction of the article.

The standing cuff sheet 40 that forms the standing cuffs 14 is preferably not liquid-permeable but liquid-impermeable or hydrophobic. Further, the liquid-permeable sheet may be repelled by silicon treatment or the like. A laminated sheet can also be adopted. In addition, the specific raw material of the sheet | seat for standing cuffs can use the thing similar to the raw material of the above-mentioned liquid-permeable surface sheet 1 or the liquid-impermeable back sheet 2. FIG.
As the material of the elastic elastic member 23 for lifting, thread rubber or the like listed as an elastic elastic member around the legs can be used. However, the elastic elastic member for lifting has a thickness of 400 dtex or more, particularly preferably 500 to 1200 dtex. It is good to fix to a standing sheet in the stretched state of 150 to 300%, particularly preferably 200 to 250%.
Note that the specific configuration and arrangement of the standing cuffs 14 and 14 are not limited, and a known standing cuff configuration can be appropriately employed without departing from the present invention.

On the other hand, the disposable diaper X2 is joined to each body of the front body F and the back body B in a three-way closed state in which the crotch part is opened, and a free portion (flap) of the flap sheet is attached to each front and rear body. A pocket P is formed by the portion 5F).
In the disposable diaper X2 of the present embodiment, at least the width direction edge of the flap sheet 5 is fixed to the standing cuff sheet 40 at a position exceeding the standing line 14s of the standing cuff 14, and the free part of the flap sheet 5 (Flap portion 5F) covers at least the portion of the standing cuff 14 that can be raised. That is, the flap portion 5F and the standing cuff 14 have a portion that partially overlaps.
In the overlapping portion, whether or not the flap sheet 5 and the standing cuff sheet 40 are bonded is not particularly limited. Either configuration can be adopted.

In the disposable diaper X <b> 2 of this embodiment, the flap portion 5 </ b> F is also separated from the liquid-permeable surface sheet 1 with the rising of the standing cuffs 14, 14 due to the action of the elastic elastic members 23, 23 for lifting the standing cuffs 14, 14. Acts to float. Therefore, the auxiliary absorbent article can be easily attached.
As a variation example of the present embodiment, for example, an example in which the stacking relationship between the flap portion and the standing cuff is opposite to the above example can be given. That is, it is an example which has the structure where the front-and-rear end part of the standing cuff is located closer to the skin contact surface than the pocket part. Further, as shown in FIG. 9, an example in which the standing cuffs 14 and 14 and the flap portion 5 </ b> F are configured by an integral sheet 45 is given.

“Third embodiment”
Next, a third embodiment will be described. The disposable diaper X3 of 3rd Embodiment is a tape-type disposable diaper by which the pocket P is formed only in any one of the front body F and the back body B, as FIG. 10 or FIG. 11 shows. .
Also in this embodiment, the variation example of the flap portion 5F as described in the first embodiment can be adopted, and although it is not shown, it has a standing cuff like the second embodiment. It can be. Other configurations and materials of the present embodiment can be the same as those of the first embodiment.

“Fourth embodiment”
Next, a fourth embodiment will be described. The disposable diaper X4 of the fourth embodiment is in the form of a pants-type disposable diaper.
As is understood from FIGS. 12 and 13, the pants-type disposable diaper X4 is fixed to the liquid-impervious exterior sheet 10 and the inner surface of the exterior sheet 10 and longitudinally (in the longitudinal direction) from the middle in the longitudinal direction. Are mainly composed of the absorbent element 30 and the flap sheet 5.
At the final stage of the manufacturing process after mounting the absorbent element 30 on the exterior sheet 10, the entire longitudinal direction of both side edges of the front body F and the back body B is applied by means such as ultrasonic sealing or heat melting. They are joined (this joint is denoted by reference numeral 10E), and in particular, as shown in FIG. 13, a diaper shape is formed in which a waist opening WO and a pair of left and right leg openings LO are formed.
The exterior sheet 10 is formed by laminating and fixing two (or three or more) breathable / water-repellent nonwoven fabrics. The waist elastic elastic members 9, 9 and the like may be disposed as appropriate. A known technique can be used for disposing the elastic stretchable member on the exterior sheet 10 to enhance the fit.
The absorbent element 30 has a structure in which the absorbent body 3 is interposed between the liquid-permeable top sheet 11 and the liquid-impermeable back sheet 12.
As the liquid-permeable top sheet 11 and the liquid-impervious back sheet 12, the materials mentioned as materials usable for the liquid-permeable top sheet 1 and the liquid-impervious back sheet 2 in the first embodiment can be used. .
The absorber 3 can use the same material as that of the absorber 3 in the first embodiment.

In the disposable diaper X4 of this embodiment, the flap sheet 5 is arranged on the skin contact surface side of the front and rear bodies, and the pocket P is formed by the free portion (flap portion 5F) of the flap sheet 5. In the diaper X4, the flap sheet 5 is arranged so as to cover the longitudinal edge portion of the absorbent element 30, and is fixed to the exterior sheet 10 at a position beyond the width direction and front and rear edges of the absorbent element 30. Yes.
The fastening portion 7 and the temporary fastening portion 8 are disposed on the flap portion 5F and the absorbing element 30 that opposes the flap portion 5F.
About the structure of the flap part 5F, the example described in 1st Embodiment is employable as a variation example. Also in this embodiment, it is possible to adopt a configuration in which an upright cuff is provided as in the second embodiment, or a configuration in which a flap sheet is arranged only in one of the front bodies as in the third embodiment. be able to.
Regarding the points other than the difference in making the pant-type structure, such as the specific configuration of the fastening part 7 and the temporary fixing part 8, for example, the constituent material and the like, the same configuration as that of the first embodiment can be adopted.

"Fifth embodiment"
Next, a fifth embodiment will be described. 5th Embodiment is the disposable diaper X5 by which the flap part 5F is provided in the absorption element 30 integrally.
As shown in FIGS. 14 and 15, the disposable diaper X5 of the present embodiment is fixed to the liquid-impervious exterior sheet 10 and the inner surface of the exterior sheet 10 and extends in the longitudinal direction (front-rear direction) centering on the crotch. It is mainly composed of the existing absorption element 30.
In the absorbent element 30 of this embodiment, the absorbent body 3 is interposed between the liquid-permeable top sheet 11 and the liquid-impermeable back sheet 12, and the flap sheet 5 is further laminated on the liquid-impermeable back sheet 12. Then, the flap sheet 5 has a flap part 5F formed by folding the flap sheet 5 on the liquid-permeable top sheet 11 at the longitudinal front and rear edges and bonding the width direction side part onto the liquid-permeable top sheet 11.
Although not shown, if the flap sheet 5 wider than the liquid-permeable top sheet 11 is used, the flap sheet 5 may be joined at the folded portion.
Other configurations other than the arrangement of the absorbent element 30 and the flap sheet 5 can be configured in the same manner as in the fourth embodiment. For example, it is also possible to form an adhesive fastening portion on the liquid-permeable top sheet 11 and to form the flap sheet 5 with a sheet having peelability with respect to the adhesiveness.

  The present invention described above can be applied to an absorbent article that is used by fastening an auxiliary absorbent article, in addition to a tape-type or pants-type disposable diaper.

It is a top view of the tape type disposable diaper of a 1st embodiment. It is the II-II sectional view. It is III-III sectional drawing of FIG. It is a top view which shows the example of a shape of a flap edge. It is a top view which shows the other example of a flap part. It is sectional drawing which shows another example of a flap part. It is a top view of a tape type disposable diaper of a 2nd embodiment. It is the IIIV-IIIV sectional view. It is a top view of the tape type disposable diaper of another example of a 2nd embodiment. It is a top view of a tape type disposable diaper of a 3rd embodiment. It is a top view of a tape type disposable diaper of another example of a 3rd embodiment. It is an expanded view of the underpants type disposable diaper of 4th Embodiment. It is a perspective view of the underpants type disposable diaper of 4th Embodiment. It is an expanded view of the underpants type diaper of 5th Embodiment. It is a partial cross section figure of the underpants type diaper of a 5th embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Liquid-permeable surface sheet, 2 ... Impermeable back sheet, 3 ... Absorber, 4 ... Locking piece, 5 ... Flap sheet, 5F ... Flap part, 5e ... Flap part opening edge, 5g ... Flap part lift Elastic elastic members, P ... pockets, 6 elastic elastic members around the legs, 7 fastening parts, 8 temporary fastening parts, 10 exterior sheets, 30 absorbing elements, 14 standing cuffs, 14s ... sticking start ends (standing up) Line), 23 ... elastic elastic member for lifting standing cuffs, 40 ... standing cuff sheet, 45 ... standing cuff and flap forming sheet, 41 ... mechanical fastener male sheet, F ... front body, B ... back body, M ... Crotch part, EL ... Leg circumference edge, Z ... Diaper body, E ... Longitudinal edge of diaper body Z, LO ... Leg opening, WO ... Waist opening, X1-X3 ... Tape-type disposable diaper, X4, X5 ... Pants Disposable mold One.

Claims (7)

A disposable diaper in which the front and back are connected via the crotch,
Having a flap portion extending in the width direction on at least one use surface of the front body and the back body,
Having a pocket formed by a flap part and a surface constituting sheet;
At the flap portion facing position of the surface constituting sheet, it has a fastening portion for fastening the auxiliary absorbent article,
At the position facing the fastening portion on the pocket inner surface side of the flap portion, it has a temporary fastening portion that is detachably attached to the fastening portion.
A disposable diaper characterized by that. The disposable diaper has a pair of standing cuffs arranged along the longitudinal direction on both sides in the width direction,
Both front-back ends of the standing cuffs, it is in a position overlapping the pocket inner surface of the flap portion, or has a pocket inner surface integral of the flap portion, the disposable diaper of claim 1, wherein. The disposable diaper according to claim 1 or 2 , wherein the flap portion is formed of a sheet that is temporarily attached to the fastening portion in a detachable manner, and the temporary fastening portion is constituted by the sheet itself that constitutes the flap portion .   The length of the opening edge of a flap part is a disposable diaper of any one of Claims 1-3 longer than the width | variety of a pocket part.   The disposable diaper according to any one of claims 1 to 4, wherein an elastic elastic member extending in the width direction is disposed in the vicinity of the opening edge of the flap portion.   The disposable diaper according to any one of claims 1 to 5, wherein the fastening portion and the temporary fastening portion are configured by a pair of male and female mechanical fasteners.   The said fastening part is what has adhesiveness, The temporary fixing part is a mold release process part or film sheet part which can adhere | attach with peelability with respect to the adhesiveness of a fastening part, Any of Claims 1-6 The disposable diaper of Claim 1.