CN107970092A

CN107970092A - Breeches type disposable diaper

Info

Publication number: CN107970092A
Application number: CN201710965775.6A
Authority: CN
Inventors: 井手彩; 森洋介
Original assignee: Daio Paper Corp
Current assignee: Daio Paper Corp
Priority date: 2016-10-21
Filing date: 2017-10-17
Publication date: 2018-05-01
Anticipated expiration: 2037-10-17
Also published as: WO2018074400A1; CN107970092B; TW201818899A; TWI744396B; CN208611123U

Abstract

The present invention provides a kind of Breeches type disposable diaper, its realize at the same time the fitness in the three-dimensional rivel portion in the Breeches type disposable diaper of two Splittable of exterior raising and to the three-dimensional rivel portions of gluteal fold both sides topple over prevent.The above subject is resolved by following proposal, and the sidepiece rivel portion erected from the both sides of built-in body possesses：Main part with root side part and distal portion；Lodge part, it is the positive part that built-in body is fixed at the anteroposterior direction both ends of the main part under lodging state；Revocable free portion between front and rear lodging part；The rivel portion elastomeric element of at least terminal part of the free portion is arranged at along anteroposterior direction；And rear side partly lodges part, it is continuous or adjacent with the front side of the lodging part of rear side, and on rear side of this in half lodging part, distal portion is engaged in root side part under lodging state, and root side part and top flat are not engaged in together.

Description

Breeches type disposable diaper

Technical field

The present invention relates to Breeches type disposable diaper.

Background technology

In general, Breeches type disposable diaper possesses：Exterior body, it separates or is integrally formed front portion with after Body part；With the built-in body for including absorber, its by from front portion throughout rear body section in a manner of be installed on exterior body, it is preceding The both sides edge of the exterior body of body part and the both sides edge of the exterior body of rear body section are joined together and form side seal portion, It is consequently formed waist opening and pair of right and left leg opening.

In such Breeches type disposable diaper, in order to improve the fitness relative to body, be formed as exterior body Stepped construction with multiple lamellas, also, by various elastomeric elements with elongation state be installed on the lamella between, wherein, under State the higher relative to the fitness of body of structure：It is being determined as the waistline area of anteroposterior direction scope corresponding with side seal portion In domain or intermediate region between front and rear waist area, interval and respectively with along width side in the longitudinal direction The elongate elastomeric element (referring for example to patent document 1~6) along width is installed to the state of elongation.

A form as Breeches type disposable diaper, it is known that Breeches type disposable diaper as follows, it possesses： Exterior body, it makes the front side both sides of exterior body and the both sides of rear side exterior body be bonded together and be formed as at side seal portion Tubular；With the built-in body for absorbing excreta, it sets the inner surface to rear side exterior body always from the inner surface of front side exterior body, Front side exterior body and rear side the exterior body side between crotch discontinuously separate (referring for example to patent document 2~6) in the longitudinal direction. The diaper of such two Splittable of exterior has the following advantages that：In order to form leg opening, exterior body is not cut off, or i.e. Make to cut off exterior body, also cut off with small area.That is, have the advantage that：Due to cutting off piece (waste) quilt Waste treatment, therefore the waste (heel loss) of its material can be suppressed.

In the Breeches type disposable diaper of two Splittable of exterior, when wearing, due to built-in body from lower crotch phase When distance of the position untill the crossover location intersected with exterior body it is longer, therefore, built-in body is easily using crossover location as branch Point swings, thus, built-in with possessing from front portion to rear body section compared with the type of the exterior body of continuous one The easy transverse shifting of body.In addition, in the Breeches type disposable diaper of two Splittable of exterior, the edge of side is edge between the crotch of exterior body The linear of width or close to linear shape, and at a right angle or the angle close to right angle and the lateral margin friendship of built-in body Fork.This means：In the Breeches type disposable diaper of two Splittable of exterior, the fitness around leg is often insufficient.

Therefore, for the Breeches type disposable diaper of two Splittable of exterior, it is preferred that as from the two of built-in body The three-dimensional rivel portion that sidepiece is erected to face side, sideling erects using making root side be partially toward width center side and makes ratio Pars intermedia leans on the three-dimensional rivel portion for being partially toward the bending shape sideling erected on the outside of width of end side, even in built-in Near the cross part that body and exterior body intersect, also make three-dimensional rivel portion is three-dimensionally high to erect, to improve the conjunction around leg Body.

But in the Breeches type disposable diaper of two Splittable of exterior, in the three-dimensional rivel portion using bending shape In the case of, the built-in easy transverse shifting this point of body is not improved, therefore, in three-dimensional rivel portion positioned at gluteal fold both sides Partially due to may in the opposite direction, i.e. it be rolled to gluteal fold each other towards the inclination of gluteal fold.In such a state, have When built-in body be easily trapped into gluteal fold, the covering to buttocks becomes inadequate, therefore not preferred.

Patent document 1：Japanese Unexamined Patent Publication 2004-073428 publications

Patent document 2：Japanese Unexamined Patent Application Publication 2006-525857 publications

Patent document 3：Japanese Unexamined Patent Publication 2011-147516 publications

Patent document 4：Japanese Unexamined Patent Publication 2014-028308 publications

Patent document 5：No. 4964993 publications of Japanese Patent Publication No.

Patent document 6：Japanese Unexamined Patent Publication 2015-092947 publications

The content of the invention

Therefore, major subjects of the invention are vertical in the Breeches type disposable diaper of two Splittable of exterior is realized at the same time The raising of the fitness in body rivel portion and to the three-dimensional rivel portions of gluteal fold both sides topple over prevent.

The representational mode of the invention for solving the above subject is as follows.

The 1st mode ＞ of ＜

A kind of Breeches type disposable diaper, it dividually possesses the front side exterior body at least waist portion for forming front portion With the rear side exterior body of at least waist portion of composition rear body section, the front side exterior body and rear side exterior body are in anteroposterior direction Between locate to separate in the longitudinal direction, the built-in body for being built-in with absorber extends always from the front side exterior body in the longitudinal direction To rear side exterior body, and the front side exterior body and rear side exterior body are individually coupled to, the Breeches type disposable diaper tool The standby side seal portion for being respectively adjoined together the front side both sides of exterior body and the both sides of rear side exterior body, waist opening with And pair of right and left leg opening, it is characterised in that the built-in body possesses the three-dimensional rivel portion erected from both sides, the solid pleat Pleat portion has：Main part, it has the root side extended from the positive both sides of the built-in body to width center side Part and the distal portion that outside extends from the end of the root side part to width；Lodge part, it is the main part The positive part of the built-in body is fixed at the anteroposterior direction both ends divided under lodging state；Unfixed free portion, It is between front and rear lodging part；And rivel portion elastomeric element, it is arranged at the free portion along anteroposterior direction There is rear side partly to lodge part at least terminal part, the solid rivel portion, and the rear side half lodges part with being fallen described in rear side It is continuous or adjacent to lie prostrate the front side of part, during side half lodges part in the rear, the distal portion engages under lodging state In described side part, and described side part and the front of the built-in body are not engaged in together.

(action effect)

In this 1st mode, by using the vertical of bending shape in the Breeches type disposable diaper of two Splittable of exterior Body rivel portion, thus, not only the fitness in three-dimensional rivel portion becomes excellent, and be provided with three-dimensional rivel portion it is above-mentioned like that Rear side partly lodge part, therefore, raise, rear side half lodges the body fit position of part the level stages in three-dimensional rivel portion Putting easily becomes stable, and therefore, even if built-in body moves left and right, the body fit position in three-dimensional rivel portion will not significantly be put It is dynamic, and the distal portion in three-dimensional rivel portion is fixed and is difficult to be absorbed in gluteal fold.

The 2nd mode ＞ of ＜

According to the Breeches type disposable diaper of the 1st mode, wherein, the built-in body and the rear side exterior body are bonded on Entirety of the interior outer engaging portions together on its anteroposterior direction and it is configured between width both ends.

(action effect)

If the interior outer engaging portions that built-in body and rear side exterior body are bonded together become the shape of this 2nd mode, The root side part being fixed together with distal portion in three-dimensional rivel portion is also difficult to topple over to gluteal fold direction, and built-in body is more difficult To be absorbed in gluteal fold, it is therefore preferred.

The 3rd mode ＞ of ＜

According to the Breeches type disposable diaper of the 2nd mode, wherein, the absorber has among anteroposterior direction to be narrowed Portion, the width of the narrowed portion is narrower than the width of the front and rear sides of the narrowed portion, the rear side half lodge extend partially into The identical position of the leading edge of rear side exterior body or rear direction center side extends further along from the leading edge of rear side exterior body, institute Half lodging part of rear side is stated in a manner of not overlapping with the narrowed portion to be located on the absorber.

(action effect)

As long as rear side half lodges, the anteroposterior direction scope of part suitably determines, but if being that this 3rd mode is such, Then built-in body is especially not easy to be absorbed in gluteal fold, is therefore preferred.

The 4th mode ＞ of ＜

According to the Breeches type disposable diaper of the 2nd mode, wherein, the rear side half, which lodges, to be extended partially into and rear side exterior The identical position of the leading edge of body or rear direction center side extends further along from the leading edge of rear side exterior body.

(action effect)

As long as rear side half lodges, the anteroposterior direction scope of part suitably determines, but if as this 3rd mode Make half cross section of the lodging part comprising built-in body and exterior body of rear side, then also can even if in face of moving left and right for built-in body Gluteal fold is absorbed in stable against built-in body.

The 5th mode ＞ of ＜

The Breeches type disposable diaper of any 1 mode in the 2nd~the 4th, wherein, the rear side partly lodges part Anteroposterior direction size ratio on rear side of the lodging part anteroposterior direction size length.

(action effect)

If length relation as meeting, half lodging part of rear side can particularly effectively play function, therefore be Preferably.

The 6th mode ＞ of ＜

The Breeches type disposable diaper of any 1 mode in the 1st~the 5th, wherein, the solid rivel portion has Front side partly lodges part, and the part that lodges of the front side half is continuous or adjacent with the rear side of the lodging part of front side, described Front side half lodges in part, and described side part is engaged in the front of the built-in body, and terminal side sections under lodging state Divide and root side part is not engaged in together.

(action effect)

There was only the free half lodging part of front side of distal portion and the only free rear side half in root side part if set Both lodging parts, then three-dimensional rivel portion can be erected throughout longer scope highland in the longitudinal direction, and end Side part and root side part will not exceedingly become freely respectively, therefore the fitness around whole leg becomes good.

As above, according to the present invention, it is vertical with that can be realized at the same time in the Breeches type disposable diaper of two Splittable of exterior The raising of the fitness in body rivel portion and to the three-dimensional rivel portions of gluteal fold both sides topple over the advantages that preventing.

Brief description of the drawings

Fig. 1 is the top view for the inner surface for showing the Breeches type disposable diaper under unfolded state.

Fig. 2 is the top view for the outer surface for showing the Breeches type disposable diaper under unfolded state.

Fig. 3 is the sectional view along the 2-2 lines in Fig. 1.

Fig. 4 is the sectional view along the 3-3 lines in Fig. 1.

Fig. 5 (a) is along the sectional view of the 4-4 lines in Fig. 1, and Fig. 5 (b) is the sectional view along the 5-5 lines in Fig. 1.

Fig. 6 is the stereogram (eliminating hole) of Breeches type disposable diaper.

Fig. 7 is the top view for the outer surface for showing the built-in body under unfolded state.

Fig. 8 is the top view for showing the outer surface of the built-in body under unfolded state together with the profile of exterior body.

Fig. 9 is the top view of the pith for the outer surface for only showing the Breeches type disposable diaper under unfolded state.

Figure 10 (a) is the top view of the pith for the front side for showing the Breeches type disposable diaper under unfolded state, figure 10 (b) is along the sectional view of the 6-6 lines of Figure 10 (a), and Figure 10 (c) is the sectional view along the 7-7 lines of Figure 10 (a).

Figure 11 (a) is the top view of the pith for the rear front side for showing the Breeches type disposable diaper under unfolded state, Figure 11 (b) is along the sectional view of the 6-6 lines of Figure 11 (a), and Figure 11 (c) is the sectional view along the 7-7 lines of Figure 11 (a).

Figure 12 is the sectional view along the 2-2 lines in Fig. 1 for showing another way.

Figure 13 is the sectional view along the 3-3 lines in Fig. 1 for showing another way.

Figure 14 (a) is the stereogram shown with the hole of hole non-woven fabrics, and Figure 14 (b) is the vertical view shown with the hole of hole non-woven fabrics Figure, Figure 14 (c) is the sectional view along the 8-8 lines in Figure 14 (b).

Figure 15 (a) is the stereogram shown with the hole of hole non-woven fabrics, and Figure 15 (b) is the vertical view shown with the hole of hole non-woven fabrics Figure, Figure 15 (c) is the sectional view along the 8-8 lines in Figure 15 (b).

Figure 16 (a) is the stereogram shown with the hole of hole non-woven fabrics, and Figure 16 (b) is the vertical view shown with the hole of hole non-woven fabrics Figure, Figure 16 (c) is the sectional view along the 8-8 lines in Figure 16 (b).

Figure 17 (a)-Figure 17 (e) is the pith amplification plan view of apertured nonwoven cloth.

Figure 18 (a) and Figure 18 (c) is the sectional view of the bonding portion of cover non-woven fabrics, and Figure 18 (b) and Figure 18 (d) are cover nonwovens The top view of the bonding portion of cloth.

Figure 19 is the top view for showing change of the hot-melt adhesive in coating.

Figure 20 (a), Figure 20 (c), Figure 20 (e) are the sectional views of the bonding portion of cover non-woven fabrics, Figure 20 (b), Figure 20 (d), Figure 20 (f) is the top view of the bonding portion of cover non-woven fabrics.

Figure 21 is the sectional view of the pith for the part for showing to have display sheet.

Figure 22 (a), Figure 22 (b) are the stereograms for the pith for showing Breeches type disposable diaper.

Figure 23 is the top view for the outer surface for showing the Breeches type disposable diaper under unfolded state.

Figure 24 (a) is along the sectional view of the 4-4 lines in Figure 23, and Figure 24 (b) is the sectional view along the 5-5 lines in Figure 23.

Label declaration

11：Opaque liquid piece；12B：Rear side exterior body；12E：Waist extension；12F：Front side exterior body；12H：Inside piece Layer；12S：Outside lamella；13：Cover non-woven fabrics；14：Hole；17：Waist elastic members；18：Excess resilient component；200：Built-in body； 201、202：Interior outer engaging portions；203：Non-engaging portion；25：Display sheet；30：Top flat；40：Intermediate；50：Absorption component；56： Absorber；58：Package panel；60：Sidepiece rivel portion；60A：Distal portion；60B：Root side part；62：Rivel portion non-woven fabrics； 67：Lodge part；68B：Rear side partly lodges part；68F：Front side partly lodges part；A1：Non-telescoping region；A2：Stretching region； L：Intermediate region；LD：Anteroposterior direction；T：Waist area；U：Waist lower section；W：Waist；WO：Waist opening.

Embodiment

In the following, embodiments of the present invention are described in detail referring to the drawings.Point line part in sectional view represents It is to utilize hot melt as the bonding agent for the engagement means that will be bonded together positioned at each component parts of its face side and rear side The whole face coating of bonding agent, wire (ビー De) apply, curtain (カーテ Application) apply, key position (サミット) coating or spiral Coating or pattern are coated with (transfer for the hot-melt adhesive realized by relief printing plate mode) etc. to be formed, alternatively, elastomeric element Fixed part be to substitute the bonding agent or together with the bonding agent using applying rifle or gluing coating etc. to elastomeric element Outer circumferential surface is coated and is formed.As hot-melt adhesive, for example there is EVA systems, adhesive rubber system (elastic system), alkene The bonding agent of the species such as system, polyester-polyamide system, uses in which need not can be particularly limited to.It is joined together as by each component parts Engagement means, the means of heat-sealing or ultrasonic sealing etc. based on material welding can also be used.

Fig. 1~Figure 13 shows an example of Breeches type disposable diaper.This Breeches type disposable diaper possesses：Form predecessor The front side exterior body 12F of at least waist portion of part F；Form the rear side exterior body 12B of at least waist portion of rear body section B；With And built-in body 200, it is arranged on exterior to pass through from front side exterior body 12F in a manner of portion between crotch extends to rear side exterior body 12B The inner side of body 12F, 12B, the both sides of front side exterior body 12F and the both sides of rear side exterior body 12B are joined together and form side Envelope portion 12A, thus, the opening formed by the rear ends of exterior body 12F, 12B become the waist opening passed through for the waist of wearer WO, in the width both sides of built-in body 200, is surrounded respectively by the lower edge of exterior body 12F, 12B and the lateral margin of built-in body 200 Part becomes the leg opening LO passed through for leg.Built-in body 200 is to absorb the part for keeping the excretas such as urine etc., exterior body 12F, 12B is the part for the built-in body 200 of body bearing relative to wearer.In addition, label Y represents the diaper under unfolded state Total length (from the edge of the waist opening WO of front portion F to the anteroposterior direction length of the edge of the waist opening WO of rear body section B), Label X represents the overall with of the diaper under unfolded state.

The Breeches type disposable diaper of present embodiment has waist area T and intermediate region L, and waist area T is true It is set to the anteroposterior direction scope (from waist opening WO to the anteroposterior direction scope of the upper end of leg opening LO) with side seal portion 12A, should Intermediate region L be confirmed as being formed the part of leg opening LO anteroposterior direction scope (front portion F with side seal portion 12A Between anteroposterior direction region and the anteroposterior direction region with side seal portion 12A of rear body section B).Waist area T can be conceptual Ground is divided into " waist " W for the edge to form waist opening and than its part on the lower i.e. " waist lower section " U.In general, in waistline area The changed border of dilation matrices with width WD is (for example, the thickness of elastomeric element and elongation become in the T of domain Change) in the case of, the border than most leaning on waist opening WO sides becomes waist W by the part of waist opening WO sides, on not such side In the case of boundary, become waist W by the side of waist opening WO than absorber 56 or built-in body 200.Their anteroposterior direction length Degree is different according to the size of product, can suitably determine, enumerate an example, waist W can be 15~40mm, and waist lower section U can Think 65~120mm.On the other hand, the both side edges of intermediate region L narrow into U in a manner of around the leg along wearer Shape or curve-like, are the position stretched into for the leg of wearer at this.As a result, the pants-type disposable urine of unfolded state Cloth is integrally formed into general hourglass shape.

(built-in body)

Built-in body 200 can use arbitrary shape, but be rectangle in the mode of diagram.Such as Fig. 3~Fig. 5 (b) institutes Show, built-in body 200 has：Top flat 30 in bodyside；Opaque liquid piece 11；And between top flat 30 and opaque liquid piece 11 Between absorption component 50, built-in body 200 is the main part for undertaking absorption function.Label 40, which represents, to be made to have passed through top flat 30 Liquid intermediate (second) from absorption component 50 to absorption component 50 that rapidly move and be arranged between top flat 30 and, mark Numbers 60 represent the both sides that prevents excreta from leaking to built-in body 200 and from the both sides of built-in body 200 with wearer's The sidepiece rivel portion 60 that the mode contacted around leg is stretched out.

(top flat)

Top flat 30 has the property for making penetration by liquid, such as can include hole or non-porous non-woven fabrics, porosity modeling Tablet etc..In addition, which kind of the raw fibre of non-woven fabrics therein be not particularly limited for.Such as may be exemplified out polyethylene or The days such as regenerated fiber, the cottons such as the synthetic fibers such as the olefin-baseds such as polypropylene, Polyester, polyamide-based, staple fibre or copper ammonia fiber Right fiber etc. or two or more composite fibre in them, composite fibre etc. are used.In addition, non-woven fabrics can pass through It is any to process to be manufactured.As processing method, known method can exemplify for example spun lacing method, spun-bond process, Hot rolling, Meltblown, needle point method, hot wind method, point bonding etc..If for example, pursuing flexible, drapability, spun-bond process, spun lacing method are preferable Processing method, if pursuing bulkiness, flexibility, hot wind method, point bonding, Hot rolling are preferable processing methods.

, can also be as the stacking as obtained from being bonded the piece of more than two also, top flat 30 can be made of a piece Piece is formed.Similarly, top flat 30 can be made of a piece in the in-plane direction, can also be made of more than two pieces.

The both sides of top flat 30 surface side that can support or oppose in the lateral margin of absorption component 50 is turned back, in addition can not also turn back but Lateral margin than absorption component 50 is also stretched out to side.

For top flat 30, for the purpose of preventing the position offset relative to back side sidepiece part, it is desirable to pass through heat-sealing, ultrasound Bomi envelope such engagement means or hot-melt adhesive based on material welding, are fixed on the adjacent portion in overleaf side by top flat 30 On part.In the mode of diagram, top flat 30 is fixed on the front of intermediate 40 by the hot-melt adhesive coated in its back side On the front of the part of the face side positioned at absorber 56 in package panel 58.

(intermediate)

In order to make rapidly to be moved to absorber through the liquid after top flat 30, the penetration speed of liquid can be set than top The fast intermediate of piece 30 (also referred to as " second ") 40.The intermediate 40 is used for following purposes：Make liquid rapidly to absorber Move and improve the absorbent properties of absorber, and prevent absorbed liquid from the phenomenon of absorber " reflux ".It can also omit Intermediate 40.

As intermediate 40, can exemplify the material identical with top flat 30 or spunlace non-woven cloth, spun-bonded non-woven fabrics, SMS non-woven fabrics, paper pulp non-woven fabrics, the mixing tab of paper pulp and staple fibre, point bonded non-woven fabrics or crepe paper.Particularly hot-wind nonwoven cloth It is very bulk, it is therefore preferred.For hot-wind nonwoven cloth, preferably using the composite fibre of core sheath structure, in this case, core institute The resin used can be polypropylene (PP), but the preferably high polyester of rigidity (PET).The weight of unit area is preferably 17~ 80g/m², more preferably 25~60g/m².The thickness of the raw fibre of non-woven fabrics is preferably 2.0~10dtex.In order to make non-woven fabrics It is bulk, as all or part of composite fibre of raw fibre, preferably using core not in central core shift fiber, hollow fibre Dimension or core shift and hollow fiber.

The intermediate 40 of the mode of diagram is shorter than the width of absorber 56 and configuration is to center, may be set to be throughout whole A width.The anteroposterior direction length of intermediate 40 can be identical with the total length of diaper, can also be with the length phase of absorption component 50 Together, can also be in the shorter length range centered on the region for receiving liquid.

For intermediate 40, for the purpose of preventing the position offset relative to back side sidepiece part, it is desirable to by sealing, surpassing Engagement means or hot-melt adhesive based on material welding as sonic seal, it is adjacent to be fixed on overleaf side by intermediate 40 Component on.In the mode of diagram, intermediate 40 is fixed on package panel 58 by the hot-melt adhesive coated in its back side In the face side positioned at absorber 56 part front on.

(opaque liquid piece)

The material of opaque liquid piece 11 is not particularly limited, such as may be exemplified out by olefin-baseds such as polyethylene or polypropylene Plastic film that resin etc. is formed, set on the surface of non-woven fabrics laminated nonwoven fabric that plastic film forms, in plastic film It is upper overlapping and engage laminates that non-woven fabrics etc. forms etc..For opaque liquid piece 11, it is preferred to use from preventing vexed wet viewpoint Set out and preferably using the material with opaque liquid and penetrability.It is widely used as the plastic film with penetrability After inorganic filler is mixed in the olefin-based resin such as polyethylene or polypropylene and is molded slice, along an axis or two direction of principal axis Extend obtained micro- porous plastic film.In addition, as opaque liquid piece 11, can also use without using plastics There is the piece of opaque liquid, this is realized opaque liquid by the following method in the case of film：It is fine using having used The non-woven fabrics of denier (micro denier) fiber；Reduced by applying heat or pressure at the anti-leakage reinforcing in the gap of fiber Reason；And coating super absorbent resin or hydrophobic resin or water repellent, still, in order to by hot-melt adhesive with it is described later Cover non-woven fabrics 13 obtains sufficient adhesive strength when being bonded, it is desirable to use resin film.

In addition, the width of rear side of the opaque liquid piece 11 except being formed as being accommodated in absorption component 50 as illustrated Outside, in order to improve anti-leakage, can also around the both sides of absorption component 50 and extend to absorption component 50 by 30 side of top flat The both sides in face.On the width of the extension, left and right is respectively that about 5~20mm is more suitable.

Furthermore, it is possible to color is set on the inner side of opaque liquid piece 11, the face particularly by 56 side of absorber because absorbing Liquid component and changed excretion indicator.

(sidepiece rivel portion)

Entirety of the sidepiece rivel portion 60 along the both sides of built-in body 200 throughout anteroposterior direction LD extends, and is in order to wearing Contact preventing side leakage and set around the leg for the person of wearing, in general, structure referred to as three-dimensional rivel portion and be referred to as The structure in plane rivel portion is all comprising wherein.

The sidepiece rivel portion 60 of the 1st mode shown in Fig. 1, Fig. 3 and Fig. 4 is so-called three-dimensional rivel portion, it is from built-in body 200 sidepiece is erected to face side.On the sidepiece rivel portion 60, root side part 60B is sideling stood towards width center side Rise, sideling erected towards width outside than part 60A of the pars intermedia by end side, but not limited to this or as after The appropriate changes such as the mode that the 2nd mode stated is erected to width center side on the whole like that.

Illustrate in more detail, the sidepiece rivel portion 60 of the 1st mode is formed as so following：To have and built-in body The rivel portion non-woven fabrics 62 of the banding of the length of 200 anteroposterior direction equal length is being partially located in width as end Turn back on WD and be folded into two parts, also, between return portion and its neighbouring piece, with the shape alongst extended State fixes the rivel portion elastomeric element 63 of more elongates at spaced intervals on width WD.In sidepiece rivel portion 60, Base end part (end of the side opposite with piece return portion on width WD) positioned at the side opposite with terminal part is The root portion 65 being fixed on the sidepiece than 11 backrest surface side of opaque liquid piece in built-in body 200, beyond the root portion 65 Part is the main part 66 (part of return portion side) stretched out from root portion 65.In addition, main part 66 has：Root sidepiece Divide 60B, it extends to width center side；With distal portion 60A, its turn back in the end of root side part 60B and to Extension on the outside of width.Which is the sidepiece rivel portion 60 of face contact type, but can also be used not to outside width The sidepiece rivel portion 60 for the line contact-type that side is turned back.Also, the anteroposterior direction both ends in main part 66 are in lodging state Under relative to top flat 30 side surfaces fix lodging part 67, on the other hand, among the anteroposterior direction between them Portion is unfixed free portion 68, is fixed on the freedom along the rivel portion elastomeric element 63 of anteroposterior direction LD with elongation state At least terminal part of part 68.Also, rivel portion elastomeric element 63 sidepiece rivel portion 60 rear ends relative to rivel portion Non-woven fabrics 62 is not fixed, but if being at least fixed to the position or ratio that lateral margin is identical between the crotch for the part 67 that lodges at terminal part Untill the position of waist is leaned in the position, then erecting for solid becomes stable, is therefore preferred.

In the sidepiece rivel portion 60 of the 1st mode formed as above, the convergent force hair of rivel portion elastomeric element 63 The effect of waving and so that anteroposterior direction both ends approach, but the quilt in a manner of not erecting of the anteroposterior direction both ends in main part 66 It is fixed, on the other hand, be formed as unfixed free portion 68 between the both ends, therefore as shown in figure 3, only free portion 68 are erected in a manner of being abutted with bodyside.Particularly, if root portion 65 is located at the rear side of built-in body 200, freedom portion Points 68 between crotch portion and its nearby by erecting in a manner of opening on the outside of width, therefore sidepiece rivel portion 60 can be abutted with face Around leg, so that fitness improves.

Make main part 66 as the sidepiece rivel portion 60 of this 1st mode from the root that extends to width center side Side part 60B and turn back in the end of root side part 60B and formed to the distal portion 60A extended on the outside of width Bending shape under, lodging part 67 at, distal portion 60A and root side part 60B are bonded together under lodging state, And root side part 60B is engaged in top flat 30 under lodging state.Engagement for the opposed faces in lodging part 67, can adopt With in the means based on material welding such as the hot-melt adhesive based on various coating methods and heat-sealing, ultrasonic sealing extremely Few one kind.In this case, engagement and the end side of root side part 60B and top flat 30 can be both carried out with identical means The engagement of part 60A and root side part 60B, can also be carried out with different means.For example, one preferably, lead to Hot-melt adhesive is crossed to carry out the engagement of root side part 60B and top flat 30, by material welding come carry out distal portion 60A with The engagement of root side part 60B.

Particularly, for front side exterior body 12F and rear side exterior body 12B, separated exterior two is split on anteroposterior direction LD For the Breeches type disposable diaper of type, it is preferred that as shown in Figure 10 (a)-Figure 10 (c), with the lodging part 67 of front side Rear side is continuous or has been disposed adjacently half lodging part 68F of front side, and on front side of this in half lodging part, root side part 60B is falling Top flat 30 is engaged under volt state, and distal portion 60A and root side part 60B are not engaged in together.Lodge in front side half In the 68F of part, only distal portion 60A is free, although highly relatively low, passes through the contraction of rivel portion elastomeric element 63 And make it that terminal part is reliably erected relative to top flat 30, and therefore, for the easy abdomen thigh for producing gap, sidepiece The fitness in rivel portion 60 also becomes good, also, make it that body fit position is stablized due to highly relatively low, even if Built-in body 200 moves left and right, and the body fit position in sidepiece rivel portion 60 will not significantly be swung.In addition, in this case, If front side half lodges, part 68F extends to the position identical with the trailing edge of front side exterior body 12F or further along rear It is to center side extension (that is, half lodging part 68F of front side includes the crossover location of front side exterior body 12F and built-in body 200), then interior The stability and the fitness for abdomen thigh in sidepiece rivel portion 60 that the confrontation of dress body 200 moves left and right all become good, because This is preferable.Usually, it is preferred that the anteroposterior direction length of the lodging part 67 of front side is built-in body 200 About 0.10~0.25 times of anteroposterior direction length, the anteroposterior direction length for the part 68F that lodges on this basis plus front side half Size afterwards is about 0.15~0.30 times of the anteroposterior direction length of built-in body 200.Also, in Figure 10 (a)-Figure 10 (c) Label AF expressions make the hot-melt adhesive that distal portion 60A and root side part 60B are bonded together, and label BF represents to make root side The hot-melt adhesive that part 60B and top flat 30 are bonded together.

In addition, if the front side of the lodging part 67 as shown in Figure 11 (a)-Figure 11 (c) with rear side is continuous or adjacent Ground is provided with half lodging part 68B of rear side, wherein, on rear side of this in half lodging part 68B, distal portion 60A is in lodging shape Root side part 60B is engaged under state, and root side part 60B and top flat 30 are not engaged in together, then are caused due to following factor The distal portion 60A in three-dimensional rivel portion is not easy to topple over to opposite direction because of the inclination towards gluteal fold (anal cleft), therefore is excellent Choosing, the factor is：Only root side part 60B is free that distal portion 60A is fixed；And sidepiece rivel portion 60 Level stages raise, the lodge body fit position of part 68B of rear side half easily becomes stable, therefore, even if built-in Body 200 moves left and right, and the body fit position in sidepiece rivel portion 60 will not significantly be swung.Since rear side partly lodges part 68B is abutted with the part heaved of buttocks, therefore, even if distal portion 60A is fixed, without worry itself and body it Between produce gap.In addition, in this case, if rear side half lodges, part 68B extends to the leading edge phase with rear side exterior body 12B (that is, half lodging part 68B of rear side includes rear side exterior body 12B for position together or the further along extension of rear direction center side With the crossover location of built-in body 200), then even if also can be stable against built-in body 200 in face of moving left and right for built-in body 200 Gluteal fold is absorbed in, is therefore preferred.Moreover, in this case, the anteroposterior direction length of half lodging part 68B of rear side is than rear side Lodging part 67 anteroposterior direction length length be it is preferable, usually, it is preferred that rear side lodging part 67 before Rear direction length is about 0.15~0.30 times of the anteroposterior direction length of built-in body 200, is fallen on this basis plus rear side half Lie prostrate the anteroposterior direction length that the size after the anteroposterior direction length of part 68B is built-in body 200 about 0.20~0.35 times.And And the label AF in Figure 11 (a)-Figure 11 (c) represents to make the hot melt that distal portion 60A and root side part 60B are bonded together Bonding agent, label BF represent to make the hot-melt adhesive that root side part 60B and top flat 30 are bonded together.

, can be suitably using as needed using silicon etc. to spun-bonded non-woven fabrics (SS, SSS as rivel portion non-woven fabrics 62 Deng), SMS non-woven fabrics (SMS, SSMMS etc.), melt spraying non-woven fabrics etc. are soft and uniformity and the excellent non-woven fabrics of concealment are implemented to dredge The rivel portion non-woven fabrics that water process forms, weight preferably about 10~30g/m of the unit area of fiber².As rivel portion Elastomeric element 63, can use rubber covered wire etc..In the case of using spandex rubber covered wire, thickness is preferably 470~1240dtex, More preferably 620~940dtex.Elongation when fixed is preferably 150~350%, and more preferably 200~300%.In addition, Value when " elongation " this term represents to make natural length be 100%.In addition, as illustrated, two can also be folded into Sandwiched waterproof membrane 64 between partial rivel portion non-woven fabrics 62, in this case, can also be at there are the part of waterproof membrane 64 Rivel portion non-woven fabrics 62 is partly omitted, still, in order to form the appearance of product and skin sense of touch as cloth, it is necessary to as shown Mode at least makes outer surface of the slave cardinal extremity in sidepiece rivel portion 60 untill end be formed by rivel portion non-woven fabrics 62 like that.

The radical of the rivel portion elastomeric element 63 set in the free portion in sidepiece rivel portion 60 is preferably 2~6, more Preferably 3~5.Configuration space 60d is appropriate for 3~10mm.If forming like this, easily rivel portion bullet is being configured with Property component 63 in the range of with face contact skin.It is not only in end side, rivel portion elastomeric element 63 can also be configured in root side.

At the free portion 68 in sidepiece rivel portion 60, the patch of la m and outer layer for rivel portion non-woven fabrics 62 The fixation of rivel portion elastomeric element 63 between them is closed or pressed from both sides, can be glued using the hot melt based on various coating methods Connect at least one of fixing means based on material welding such as agent and heat-sealing or ultrasonic sealing.If by rivel portion nonwoven La m and outer layer the whole face fitting of cloth 62, then pliability can be damaged, it is therefore preferable that not being bonded or being weaker bonded rivel Part beyond the adhesive portion of portion's elastomeric element 63.It is such structure in the mode of diagram：By using coating gun or on The coating such as glue nozzle means only apply hot-melt adhesive and by the rivel portion elastic portion in the outer circumferential surface of rivel portion elastomeric element 63 Part 63 is clipped between the la m and outer layer of rivel portion non-woven fabrics 62, thus, merely with coated in the rivel portion elastomeric element The hot-melt adhesive of 63 outer circumferential surface, to carry out la m and outside of the elongate elastomeric element relative to rivel portion non-woven fabrics 62 Fixation between the fixation of layer and the la m and outer layer of rivel portion non-woven fabrics 62.

Equally, for the fixation or lodging of the waterproof membrane 64 and rivel portion non-woven fabrics 62 that are fitted into sidepiece rivel portion 60 The fixation of part 67, can use the hot-melt adhesive based on various coating methods and heat-sealing or ultrasonic sealing etc. to be based on material Expect at least one of means of welding.

The size in the sidepiece rivel portion 60 of the 1st mode can determine suitably, but in the case of infant's purposes, such as As shown in figure 3, sidepiece rivel portion 60 erect height (the width length of the main part 66 under unfolded state) W2 it is preferred For 15~60mm, particularly preferably 20~40mm.In addition, by sidepiece rivel portion 60 in a manner of with the frontoparallel of top flat 30 Separating distance W1 in the state of flatly folding between innermost broken line is preferably 60~190mm, is particularly preferably 70~140mm.In the case of adult's purposes, sidepiece rivel portion 60 erect height (main part 66 under unfolded state Width length) W2 be preferably 20~60mm, particularly preferably 30~55mm.In addition, by sidepiece rivel portion 60 with top Separating distance W1 between innermost broken line is preferably in the state of the mode of the frontoparallel of piece 30 flatly folds 110~190mm, particularly preferably 120~150mm.

The sidepiece rivel portion 60 of 1st mode can also include three-dimensional rivel portion and plane pleat only comprising three-dimensional rivel portion Pleat portion both sides, or only include plane rivel portion.Figure 12 and Figure 13 is shown comprising three-dimensional rivel portion and plane rivel portion both sides The 2nd mode sidepiece rivel portion 60.Each sidepiece rivel portion 60 has：Part 1 61 (plane rivel portion part), it is from fixation The side of root portion 65 to the built-in body 200 on the sidepiece than 11 backrest surface side of opaque liquid piece in built-in body 200 is prominent； With part 2 69 (three-dimensional rivel portion part), it is from the root portion 65 on the both sides for the top flat 30 being fixed in built-in body 200 It is prominent to the face side of built-in body 200.In more detail, make with the length with the anteroposterior direction equal length of built-in body 200 The rivel portion non-woven fabrics 62 of banding stretched out from root portion 65 to side, and turn back in the end of part 1 61 to face side, should The part turned back to face side reaches part 2 69 by part 1 61, and turns back in the end of part 2 69.On rivel Opposed portion tap, is combined by the part being folded in portion's non-woven fabrics 62 using hot-melt adhesive etc..In addition, part 2 69 anteroposterior direction both ends are set to be fixed on the lodging part 67 of the side surfaces of top flat 30, the opposing party with lodging state Face, the anteroposterior direction pars intermedia between the anteroposterior direction both ends are set to unfixed free portion 68.The 1st In at least anteroposterior direction pars intermedia of part 61 and the free portion 68 of part 2 69, with elongation state be fixed with one or The more rivel portion elastomeric elements 63 along anteroposterior direction LD are fixed with spaced intervals on width WD, by the rivel The convergent force of portion's elastomeric element, the free portion 68 of part 2 69 are shunk on anteroposterior direction LD and are become with being connect around leg Tactile three-dimensional rivel portion, in addition, part 1 61 shrinks on anteroposterior direction LD and becomes the plane rivel with being contacted around leg Portion.

Three-dimensional rivel portion in the sidepiece rivel portion 60 of 2nd mode is the shape erected on the whole to width center side State, but not limited to this, bending shape etc. can be formed as the sidepiece rivel portion 60 of the 1st mode to carry out appropriate change More.The material of other points, such as rivel portion non-woven fabrics 62 or the material of rivel portion elastomeric element 63 involved by for the 2nd mode Deng identical with the 1st mode, and the description is omitted.

(absorption component)

Absorption component 50 has：Absorber 56；With the package panel 58 of the whole absorber 56 of cladding.Package panel 58 can also Omit.

(absorber)

Absorber 56 can be formed by the aggregate of fiber.As the fiber assembly, except starching continuous official form for filing a lawsuit or synthesizing The staple fibers such as fiber accumulate outside the fine aggregate formed, can also use as needed and the synthesis fibre such as Dichlorodiphenyl Acetate cellulose The tow (fibre bundle) of dimension carries out long filament (filament) aggregate obtained from fibrillation.Weight as the unit area of fiber Amount, in the case where carrying out accumulating fibre to continuous official form for filing a lawsuit slurry or staple fiber, such as can be about 100~300g/m², in long filament set In the case of body, such as can be about 30~120g/m².Fineness in the case of synthetic fibers is, for example, 1~16dtex, excellent Elect 1~10dtex as, more preferably 1~5dtex.In the case of long filament aggregate, long filament can also be non-crimped fiber, but It is preferably crimped fibre.The crimpness of crimped fibre can be for example every 2.54 centimetres 5~75, be preferably 10~50, More preferably about 15~50.In addition, in most cases using the crimped fibre equably crimped.It is preferred that in absorber 56 It is scattered to keep superabsorbent polymer particle.

Absorber 56 can be rectangular shape, if but being also formed as shown in Fig. 1 and Fig. 7 etc. in anteroposterior direction Centre has the hourglass shape of the width narrowed portion 56N narrower than the front and rear sides among the anteroposterior direction, then absorber 56 from Body and sidepiece rivel portion 60 are improved relative to the fitness around leg, are therefore preferred.

As long as in addition, the size of absorber 56 throughout urination mouth position all around, it is possible to it is appropriate to determine, but preceding On rear direction LD and width WD, preferably extend over to the peripheral part of built-in body 200 or its.In addition, label 56X represents to inhale The overall with of acceptor 56.

(superabsorbent polymer particle)

It can make some or all containing superabsorbent polymer particle of absorber 56.It polymerize on high-absorbable Thing particle, also " powder " is included in addition to " particle ".As superabsorbent polymer particle 54, can be directly used in this Particle used in disposable diaper, such as in standard screen (the JIS Z8801-1 for having used 500 μm：2006) screening (is shaken Dynamic 5 minutes) in remain in the particle that the ratio of the particle on sieve is below 30 weight % be desirable, in addition, using 180 μm of standard screen (JIS Z8801-1：2006) ratio of the particle on sieve is remained in screening (vibration 5 minutes) Particle for more than 60 weight % is desirable.

As the material of superabsorbent polymer particle, it can use without particular limitation, but water absorption is more than 40g/g Material be preferable.As superabsorbent polymer particle, there are starch, cellulose family, the contour absorption of synthesized polymer species Property polymer particle, can use Starch with Acrylic Acid (salt) graft polymers, saponified, the carboxylic first of starch acrylonitrile copolymer The superabsorbent polymer particle such as base sodium cellulosate cross-linking agent and acrylic acid (salt) polymer.As superabsorbent polymer particle Shape, be preferably usually used bulk material shape, but other shapes can also be used.

As superabsorbent polymer particle, preferably using the height that absorption speed is less than 70 seconds, particularly less than 40 seconds Absorbable polymer particle.If absorption speed is excessively slow, the liquid being easily supplied in absorber 56 returns to absorption So-called reflux outside body 56.

As superabsorbent polymer particle, preferably using the superabsorbent polymer grain that gel strength is more than 1000Pa Son.Thus, in the case of the absorber 56 for being formed as bulk, the stickness after liquid absorption can also be effectively inhibited Sense.

The weight of the unit area of superabsorbent polymer particle can correspond to be wanted according to the purposes of the absorber 56 The uptake asked suitably determines.It is thus impossible to lump together, but can be 50~350g/m².If the unit plane of polymer Long-pending weight is less than 50g/m², it is difficult to ensure uptake.If the weight of the unit area of polymer is more than 350g/m², then effect satisfy With.

If it is necessary, the dispersion density of superabsorbent polymer particle can be adjusted on the in-plane of absorber 56 Or dispersion volume.For example, the dispersion volume of the drain site of liquid can be made bigger than the dispersion volume at other positions.Considering difference between male In the case of, in the case of men's, the dispersion density (amount) of front side can be improved, in the case of lady's, in can improving The dispersion density (amount) in centre portion.Alternatively, it is also possible to local (such as in point-like) be set not on the in-plane of absorber 56 There are the part of polymer.

(package panel)

In the case of using package panel 58, as its material, tissue paper (tissue paper) can be used particularly Crepe paper, non-woven fabrics, laminated (Port リラミ) non-woven fabrics, open foraminate etc..However, it may be desirable to it is superabsorbent polymer grain The piece that son is not fallen out.In the case where replacing crepe paper using non-woven fabrics, particularly preferably hydrophilic SMS non-woven fabrics (SMS, SSMMS etc.), its material can use polypropylene, polyethylene/polypropylene composite material etc..It is expected the weight of unit area for 5~ 40g/m², it is 10~30g/m to be especially desired to²。

The manner of packing of package panel 58 can be determined suitably, but from ease of manufacturing and prevent superabsorbent polymer particle It is preferably such a way from the viewpoint of preceding end edge leaks out etc.：By package panel 58 with surround the front of absorber 56 and The mode of the back side and two sides is wound into tubular, and its front and rear edge is exposed before and after absorber 56, and utilizes hot melt The lap for winding the part overlapped and front and rear exposed portion is joined together by the engagement means such as bonding agent, material welding.

(exterior body)

Exterior body 12F, 12B are not by between crotch one as shown in Figure 23 and Figure 24 (a), Figure 24 (b) from front portion F Until the exterior body 12 of the continuous one of rear body section B, but exterior body as follows：By forming front portion F at least The part of waist portion is front side exterior body 12F and forms the part i.e. rear side exterior body 12B of at least waist portion of rear body section B Form, and front side exterior body 12F and rear side exterior body the 12B side between crotch discontinuously separate on anteroposterior direction LD.The separation Distance 12d for example can be about 150~250mm.

Exterior body 12F, 12B have anteroposterior direction scope, that is, waist portion corresponding with waist area T.In addition, in the manner In, the length of exterior body 12F on front side of the anteroposterior direction size ratio of rear side exterior body 12B, does not have with the exterior body 12F of front side Between the corresponding parts of region L, but rear side exterior body 12B has buttocks cover portion from waist area T to intermediate region L sides that stretched out from C.It is also provided with extending from waist area T to intermediate region L sides on the exterior body 12F of front side although it is not shown, can also become Groin cover portion or although groin cover portion is set but is not provided with mode as buttocks cover portion, or can not also be Front side exterior body 12F and rear side exterior body 12B both sides set part corresponding with intermediate region L.In addition, though in diagramatic way The lower edge of middle buttocks cover portion C and the lower edge of front side exterior body 12F are identically formed as the linear of WD in the width direction, but also may be used With as with towards width outside and close to the curve of waist open side.

The anteroposterior direction size of the lateral margin of buttocks cover portion C can be determined suitably, but if long, then the leg opening of lateral margin The angle of LO sides may occur Dutch roll and cause appearance and wearing feeling to deteriorate, therefore preferably below 20mm.

As shown in Fig. 4-Fig. 5 (b), exterior body 12F, 12B will be located at by engagement means such as hot-melt adhesive or weldings What the outside of elastomeric element 15~19 described later and the outside lamella 12S of inner side and inner side lamella 12H were joined together.Formed The sheet material of outside lamella 12S and the sheet material for forming inner side lamella 12H can be a shared sheet material or single piece Material.I.e., in the former case, exterior body part or all, using (can also be between crotch at the edge of waist opening WO At the edge of side) inboard portion of a sheet material turned back and outboard section form inner side lamella 12H and outside lamella 12S respectively. Also, in the former mode, there are sheet material negligible amounts it is such the advantages of, in the mode of the latter, exist when fitting in The advantages of position offset is such is difficult to happen during lateral plate layer 12H and outside lamella 12S.The mode of diagram is formed equivalent to the latter The sheet material of inner side lamella 12H extends only to the edge of waist opening WO, but the sheet material for forming outside lamella 12S bypasses inner side lamella 12H Sheet material waist side edge after to its inner side turn back, sides of the return portion 12r to be coated on the waist side end of built-in body 200 Formula extends.

As the sheet material for outside lamella 12S and inner side lamella 12H, use with need not being particularly limited to, but nonwoven Cloth is preferable, such as can use following non-woven fabrics, the non-woven fabrics by the olefin-baseds such as polyethylene or polypropylene, Polyester, It is polyamide-based to wait synthetic fibers or used two or more composite fibre in them, composite fibre etc. to form.In addition, Non-woven fabrics can be manufactured by any processing.As processing method, known method can exemplify such as spun lacing method, Spun-bond process, Hot rolling, meltblown, needle point method, hot wind method, point bonding etc..In the case of using non-woven fabrics, its unit area Weight preferably about 10~30g/m²。

In addition, the weight of total unit area of exterior body 12F, 12B is preferably about 20~60g/m²。

(stretching region and non-telescoping region)

On exterior body 12F, 12B, in order to improve the fitness for being directed to the waistline of wearer, lamella 12S and interior on the outside Elastomeric element 15~19 is equipped between lateral plate layer 12H, so that formed with the flexible of elastomeric element and on width WD The stretching region A2 of elastic telescopic.In stretching region A2, in the state of naturally long, outside lamella 12S and inner side lamella 12H is shunk with the contraction of elastomeric element, so that formed with gauffer or folds in a garment, when outside lamella 12S and inner side lamella 12H is in bullet When being extended on the length direction of property component, it can extend to defined elongation as follows：Ultimate elongation is without gauffer. As elastomeric element 15~19, in addition to the elongate such as rubber covered wire elastomeric element (illustrated example), it can not also be particularly limited to ground Use the known elastomeric element of banding, netted, membranaceous etc..As elastomeric element 15~19, synthetic rubber can be used, also may be used To use natural rubber.

Fitting or folder for outside lamella 12S and inner side lamella 12H in exterior body 12F, 12B are between them Elastomeric element 15~19 fixation, hot-melt adhesive based on various coating methods and heat-sealing or ultrasonic wave can be used At least one of fixing means based on material welding such as sealing.If firmly fixing the entire surface of exterior body 12F, 12B, Pliability can be damaged, it is therefore preferable that the part for not being bonded or being weaker bonded beyond the adhesive portion of elastomeric element 15~19. It is such structure in the mode of diagram：By using coating gun or gluing nozzle etc. coating means only elastomeric element 15~ 19 outer circumferential surface applies hot-melt adhesive and is clipped between two lamellas 12S, 12H, thus, merely with coated in the elastomeric element The hot-melt adhesive of 15~19 outer circumferential surface, come carry out elastomeric element 15~19 relative to the fixation of two lamellas 12S, 12H and Fixation between two lamellas 12S, 12H.Elastomeric element 15~19 can be only in stretching region telescopic direction both ends consolidate Due to outside lamella 12S and inner side lamella 12H.

The elastomeric element 15~19 of diagramatic way is illustrated in more detail, multiple waist elastic members 17 are with throughout whole A continuous modes of width WD, are installed on outer at the waist W of exterior body 12F, 12B at spaced intervals in the longitudinal direction Between lateral plate layer 12S and inner side lamella 12H.It is in addition, adjacent with waist lower section U for being disposed in waist elastic members 17 , both can be overlapping with built-in body 200 for 1 or more in region, the width overlapping with built-in body 200 can also be removed Direction central portion and be respectively arranged at its width both sides.As the waist elastic members 17, it is preferred that with 4~12mm Interval come set about 3~22 thicknesses for 155~1880dtex be especially preferably about 470~1240dtex (synthesis rubber The situation of glue.In the case of natural rubber, sectional area is 0.05~1.5mm², especially preferably about 0.1~1.0mm²) Rubber covered wire, elongation based on the setting, that waist W is on width WD is preferably 150~400%, particularly preferably big About 220~320%.In addition, for waist W, without all using the waist elastic members of identical thickness on its anteroposterior direction LD 17 or identical elongation is arranged to, such as the thickness or elongation of elastomeric element 17 can be made in the upper and lower part of waist W It is different.

In addition, between outside lamella 12S and inner side lamella 12H at the waist lower section U of exterior body 12F, 12B, preceding The more waist lower section elastomeric elements 15,19 being made of elongate elastomeric element are installed at spaced intervals in rear direction.

As waist lower section elastomeric element 15,19, it is preferred that particularly preferably come with 1~15mm with the interval of 3~8mm About 5~30 thicknesses are set to be especially preferably about 470~1240dtex (situations of synthetic rubber for 155~1880dtex. In the case of natural rubber, sectional area is 0.05~1.5mm², especially preferably about 0.1~1.0mm²) rubber covered wire, base In the setting, elongation that waist lower section U is on width WD be preferably 200~350%, particularly preferably about 240 ~300%.

In addition, between outside lamella 12S and inner side lamella 12H in the buttocks cover portion C of rear side exterior body 12B, installation There is the cover portion elastomeric element 16 being made of elongate elastomeric element.

As cover portion elastomeric element 16, it is preferred that set 1 or set more at spaced intervals in the longitudinal direction Thickness is especially preferably about 470~1240dtex (situations of synthetic rubber for 155~1880dtex.In the feelings of natural rubber Under condition, sectional area is 0.05~1.5mm², especially preferably about 0.1~1.0mm²) rubber covered wire, based on the setting, buttocks Elongations of the cover portion C on width WD is preferably 150~300%, and particularly preferably 180~260%.

In the case where setting cover portion elastomeric element 16, if most leaning on the cover portion elastomeric element 16 and buttocks of leg opening LO sides Anteroposterior directions of the edge Ce of the leg opening side of cover portion C at the lateral margin Cs of buttocks cover portion C is at intervals of from the side of rear side exterior body 12B 0.9~1.1 times of width size W3 of the edge untill the lateral margin of the width center side of side seal portion 12A, then buttocks cover The angle of the leg opening LO sides of the lateral margin Cs of portion C almost unobvious, are therefore preferred.Particularly, in this case, set 1, Or on anteroposterior direction LD with 2 cover portion elastomeric elements 16 of interval setting of below 5mm it is suitable.In addition, if from most It is spaced in by anteroposterior direction of the cover portion elastomeric element 16 untill the waist lower section elastomeric element 15 adjacent with its waist side of waist side It is maximum in the interval of more than 15mm and all elastomeric elements in rear side exterior body 12B, then in rear side exterior body 12B, Compared with than cover portion elastomeric element 16 by the part of leg opening side, seem to extend than part of the cover portion elastomeric element 16 by waist side Bigger, thus, the protrusion at the angle of the leg opening LO sides of the lateral margin Cs of buttocks cover portion C is not easy noticeable, therefore is preferred 's.

Here, if the leg opening LO sides only in buttocks cover portion C were configured with cover portion elastomeric element 16, such as Figure 22 (a) Shown, when buttocks cover portion C is shunk together with cover portion elastomeric element 16, the leg opening LO sides of buttocks cover portion C are by width WD centers side-lining, therefore, even if the edge Ce of the leg opening LO sides of buttocks cover portion C is linear, the stern along width WD The edge Ce of the leg opening LO sides of portion cover portion C is also oliquely downward tilted towards width WD center sides, for buttocks ditch (stern Ditch) Fitness be improved.At this time, the lateral margin Cs of buttocks cover portion C is also oliquely downward tilted towards width WD center sides, because This, unobtrusively, appearance will not deteriorate at the angle of the leg opening LO sides of the lateral margin Cs of buttocks cover portion C.

On the other hand, in the case of being configured with cover portion elastomeric element 16 in the waist side only in buttocks cover portion C, such as Figure 22 (b) shown in, when buttocks cover portion C is shunk together with cover portion elastomeric element 16, the waist side of buttocks cover portion C is by central to width Side-lining, therefore, even if the edge Ce of the leg opening LO sides of buttocks cover portion C is along the linear of width WD, buttocks cover portion C Lateral margin Cs also to side warpage, and the edge Ce of the leg opening LO sides of buttocks cover portion C is lateral obliquely downward towards width center Side tilts, and is improved for the fitness of buttocks ditch.At this time, the lateral margin Cs of buttocks cover portion C is to side warpage, but buttocks cover portion The angle of the leg opening LO sides of the lateral margin Cs of C is not significantly prominent to the side of side seal portion 12A, therefore the lateral margin of buttocks cover portion C Unobtrusively, appearance will not deteriorate at the angle of the leg opening LO sides of Cs.

In addition, the anteroposterior direction size in the lateral margin Cs of buttocks cover portion C is from the lateral margin of rear side exterior body 12B to side seal portion , can not also in the case of 0.9~1.1 times of width size W3 untill the lateral margin of the width WD center sides of 12A The cover portion elastomeric element 16 of buttocks cover portion C is set.In this case, by waist lower section by waist lower section elastomeric element 15 into The influence that row is shunk, the lateral margin Cs of buttocks cover portion C is easily to side warpage, but the leg opening LO sides of the lateral margin Cs of buttocks cover portion C Angle hardly protruded from the lateral margin of diaper, therefore the angle is unobtrusively, and appearance will not deteriorate.

In the case that groin cover portion is set on the exterior body 12F of front side, cover portion elastomeric element can also be similarly set.

The waist lower section U or buttocks cover portion C of mode as shown are such, in the range of the anteroposterior direction with absorber 56 In the case of setting elastomeric element 15,16,19, in order to prevent absorber 56 in width in one part or four corner Contraction on WD, the width including part or all of the part overlapping on width WD with absorber 56 Middle (entirety for preferably comprising interior outer engaging portions 201,202) is set to non-telescoping region A1, its width both sides is set It is set to stretching region A2.It is preferred that throughout the set overall of width WD be stretching region A2 by waist W, but can also with waist Square portion U sets non-telescoping region A1 among width in the same manner.

Such stretching region A2 and non-telescoping region A1 can be formed by following manner：By elastomeric element 15~17, 19 supplies are between inner side lamella 12H and outside lamella 12S, at the both ends of at least telescopic direction in stretching region A2, Using hot-melt adhesive secure resilient member 15,16,19, in the region as non-telescoping region A1, elastomeric element is not fixed 15th, 16,19, and in the region as non-telescoping region A1, among the width one at position by pressurizeing and adding Elastomeric element 15,16,19 is cut off or by pressurizeing the almost overall fine of elastomeric element 15,16,19 and heating by heat Cut-out, so as to retain retractility in stretching region A2, while eliminates retractility in non-telescoping region A1.In the former situation Under, as shown in figure 4, in non-telescoping region A1, it is remaining after continuously being cut off with the elastomeric element 15,16,19 of stretching region A2 Portion remains in outside lamella 12S and inner side lamella as excess resilient component 18 in the state of being individually contracted to nature and growing Between 12H, in the latter case, although it is not shown, still, continuously being cut with the elastomeric element 15,16,19 of stretching region A2 Have no progeny remainder and the not cut off machine conduct of the elastomeric element 15 with the stretching region A2 of two sides, 16,19 continuous elastomeric elements Excess resilient component is between outside lamella 12S and inner side lamella 12H is remained in the state of being individually contracted to nature and growing.

(display sheet)

Preferably, as shown in Fig. 2, Fig. 5 (a), Fig. 5 (b), Fig. 7 and Fig. 8, exterior body 12F and rear side exterior body in front side Between at least one party and built-in body 200 in 12B, the display sheet 25 with the display such as caricature 27 is folded with, the display sheet 25 Display can pass through exterior body 12F, 12B and have an X-rayed visible.If by display sheet 25 be located in exterior body 12F, 12B with it is built-in Form between body 200, then during fabrication, can carry out being used to form non-telescoping region A1 in the state of no display sheet 25 Elastomeric element 15,16,19 cutting off processing, therefore not in display sheet 25 residual cut-out trace, can prevent beauty The deterioration of property.Certainly, display sheet 25 can also be located in outside lamella 12S and elastomeric element 15,16,19 between or inner side Between lamella 12H and elastomeric element 15,16,19.Display sheet 25 can also be omitted.

As the material of display sheet 25, from fine printing this point is suitable for, resin film is used.Using impermeable , it is necessary to set Printing Department in the outer surface of display sheet 25 in the case of the high resin film of bright property, still, such as the transparency is being used In the case of high resin film, Printing Department can also be set on the inner surface of display sheet 25.

The display 27 being additional in display sheet 25 is not particularly limited, and the pattern of decoration can be additionally implemented for by printing etc. The function such as (personage for including drawing and single-point pattern), application method or use auxiliary, size is shown or producer or product The marks such as title, feature functionality such as show at the display.

At least one party in the inner surface and the outer surface of display sheet 25 is adhered to opposed faces by hot-melt adhesive 25H.

As long as the size of display sheet 25 suitably determines, still, in normal circumstances, it is preferred that display sheet 25 are configured in the range of the width overlapped with built-in body 200 with the size below the width of built-in body 200, specific next Say, if the 50~100% of the width of built-in body 200, then built-in 200 side of body is easily pasted on during fabrication, therefore is excellent Choosing.In addition, the width 25x of display sheet 25 is preferably than the width 13x wide of cover non-woven fabrics 13 described later.

Display sheet 25 can be as shown the display sheet 25 for being configured at rear body section B be configured at and built-in 200 weight of body like that In the region of conjunction, but if at least one display sheet 25 be made of opaque liquid resin film and as shown be configured at front portion The display sheet 25 of F is extended in waist extension 12E from the region overlapped with built-in body 200 like that, wherein, the waist extension Divide 12E to be stretched out compared with the edge of the waist side of built-in body 200 to waist opening WO sides, then can be obstructed by display sheet 25 from built-in body The urine or soft stool that the end of 200 waist side goes out to waist side leakage, thus, it is possible to prevent the waist of urine or soft stool in front side exterior body 12F from stretching Go out at the 12E of part and ooze out.It is different from diagramatic way, it can also make to be configured at the display sheet 25 and front portion F's of rear body section B Display sheet 25 extends to waist from the region overlapped with built-in body 200 and stretches together or instead of the display sheet 25 of front portion F Go out in the 12E of part.As opaque liquid resin film, the material identical with opaque liquid piece 11 can be selected, preferably with liquid-tight Property piece 11 in the same manner using especially have penetrability plastic foil.

In the case where making display sheet 25 extend in waist extension 12E, it is more preferable that in waist extension The edge from the waist side of built-in body 200 in 12E is left at the position of more than 5mm to waist opening WO sides, and being provided with least makes and show Show the elastomeric element that the corresponding width scope in width center section of piece 25 is shunk.In diagramatic way, waist bullet Elastomeric element of the property component 17 equivalent to the configuration.The region that exterior body 12F, 12B are overlapped with built-in body 200 is because of rigid Gao Ernan With bending, on the other hand, waist extension 12E is easily bent because rigidity is low, therefore, as shown in figure 21, passes through waist elasticity Component 17 so that display sheet 25 is more proximate to waist side and shrinks more in the direction of the width, and elasticity is in waist extension 12E Part between component and built-in body 200 is being rolled over the boundary of built-in body 200 to skin lateral bending, thus, waist extension 12E The part with display sheet 25 erected to skin side, formed urine or soft stool barrier rib.Thus, it is possible to improve exterior body 12F, At the waist extension 12E of 12B for urine or soft stool it is anti-exudative.In this case, if waist extension 12E only by The non-woven fabrics for forming outside lamella 12S and inner side lamella 12H is formed, then the region that exterior body 12F, 12B and built-in body 200 overlap Poor rigidity between waist extension 12E becomes larger, and is therefore preferred.In addition, the weight of the piece of the waist side edge part of built-in body 200 Folded number is more, then the poor rigidity becomes bigger, is therefore preferred, and specifically, can there is the number of more than 3 Difference.Particularly, at least there is the opaque liquid piece 11 that is made of plastic foil in the waist side edge part of built-in body 200, if further In the presence of the package panel 58 being made of crepe paper, then its rigidly rise, is therefore preferred.In addition, bulk intermediate 40 extends to The waist side edge part of built-in body 200 is also preferable.In order to which the region for making exterior body 12F, 12B be overlapped with built-in body 200 is not bent, It is also preferable to be formed in a manner of making the region consistent with non-telescoping region A1.

The anteroposterior direction length 25y of the part in waist extension 12E of display sheet 25 is not particularly limited, but Usually, it is preferably more than 5mm.In addition, if display sheet 25 at least extends to the elastic portion of 200 side of innermost dress body Part (being most by the waist elastic members of side between crotch in waist elastic members 17 in diagramatic way), then improving exterior body At the waist extension 12E of 12F, 12B for the anti-exudative particularly preferred of urine or soft stool.

(cover non-woven fabrics)

In the Breeches type disposable diaper of two Splittable of exterior, since built-in body 200 is in front side exterior body 12F and rear side Expose between exterior body 12B, therefore possess cover non-woven fabrics 13, wherein, the cover non-woven fabrics 13 is from front side exterior body 12F and built-in body One between rear side exterior body 12B and built-in body 200 up to covering the back side of built-in body 200 between 200, in order to avoid opaque liquid piece 11 expose at the back side of built-in body 200.

For cover non-woven fabrics 13, the non-porous non-woven fabrics without the hole for penetrating through positive and negative can be used, but in this mode, Cover non-woven fabrics becomes the apertured nonwoven cloth in the hole 14 for being provided with multiple perforation positive and negatives at spaced intervals, and with positioned at display The mode of part between piece 25 and opaque liquid piece 11 extends on anteroposterior direction LD.If like this prolong cover non-woven fabrics 13 Extend between display sheet 25 and opaque liquid piece 11, then can be from the outside of disposable diaper through having in 14 non-woven fabrics of hole and saturating Gas is between display sheet 25 and opaque liquid piece 11, therefore, it is possible to prevent in the materials'use to display sheet 25 resin film In the case of gas permeability reduction.

Although it is not shown, dividually can also at least it be set from the exterior body overlapped with display sheet 25 with cover non-woven fabrics 13 The raising that is exclusively used in that the edge of side is extended between display sheet 25 and opaque liquid piece 11 to waist open side between the crotch of 12F, 12B is breathed freely The apertured nonwoven cloth of property.In addition, in the case where front and rear both sides have display sheet 25, can be only in front side exterior body 12F with after Any one party in the exterior body 12B of side makes cover non-woven fabrics 13 extend between display sheet 25 and opaque liquid piece 11.

The processing method of the combination (crosslinking) of species or fiber for the fiber of apertured nonwoven cloth, is not particularly limited, The non-woven fabrics with the material identical of exterior body 12F, 12B can be properly selected, it may be desirable to using hot-wind nonwoven cloth, such case Under the weight of unit area be preferably 20~40g/m², thickness is preferably 0.3~1.0mm.

On the anteroposterior direction scope of cover non-woven fabrics 13, it is not particularly limited, can be such as Fig. 2, Fig. 5 (a), Fig. 5 (b) and figure , can also be such as Fig. 8 institutes like that throughout integrally the extending on anteroposterior direction LD from front to back of built-in body 200 shown in 7 Show like that from the anteroposterior direction centre position in the region that front side exterior body 12F and built-in body 200 coincide, in anteroposterior direction LD On extend to the region that rear side exterior body 12B and built-in body 200 coincide anteroposterior direction centre position untill.25 He of display sheet The anteroposterior direction length 25w for the intersection that cover non-woven fabrics 13 coincides is preferably the anteroposterior direction length 25y's of display sheet 25 25~100%.In addition, in the case of the mode shown in Fig. 8, cover non-woven fabrics 13 is overlapped with what front side exterior body 12F coincided The anteroposterior direction for the intersection that partial anteroposterior direction length 13y and cover non-woven fabrics 13 and rear side exterior body 12B coincide Length 13y can suitably be set, but in normal circumstances, can be respectively set as about 20~40mm.

What the width scope of cover non-woven fabrics 13 was hidden as the back side exposed portion that can make opaque liquid piece 11 Scope.Therefore, in the mode of diagram, since opaque liquid piece 11 exposes between the cardinal extremity in the sidepiece rivel portion 60 of left and right, Therefore, at least to cover the base end part from the rear side of the base end part in a sidepiece rivel portion 60 to another sidepiece rivel portion 60 Rear side untill the mode of width scope be provided with cover non-woven fabrics 13.Thereby, it is possible to pass through cover non-woven fabrics 13 and side The 62 hidden opaque liquid piece 11 of rivel portion non-woven fabrics in rivel portion of portion 60, also, when from outer surface, cover non-woven fabrics 13 The hole 14 at width WD both ends will not be covered by rivel portion non-woven fabrics 62.In addition, if the lateral margin of cover non-woven fabrics 13 is located at Most narrow part (is overall with the case of without narrowed portion 56N with the width of absorber 56.With narrowed portion 56N's In the case of be the most narrow part of width in narrowed portion 56N) the identical position in lateral margin or lean on width side positioned at than the position To at the position of center side, then cover non-woven fabrics 13 is only located at part, the i.e. rigidity that whole cover non-woven fabrics 13 is overlapped with absorber 56 Part that is high and being difficult to generation gauffer or folding line, therefore, the both sides of cover non-woven fabrics 13 are difficult to shrink on anteroposterior direction LD, from And it is difficult to form gauffer or the conquassation for being difficult to happen hole 14 in the both sides of cover non-woven fabrics 13.In addition, even if make rivel portion nonwoven The rear side at the width both ends of 62 cover non-woven fabrics 13 of cloth, rather than make the width both ends of cover non-woven fabrics 13 Cover the rear side of the base end part in sidepiece rivel portion 60, also can by cover non-woven fabrics 13 and rivel portion non-woven fabrics 62 come it is hidden not Liquid-permeable sheet 11.In this case, since the both sides of cover non-woven fabrics 13 are covered by rivel portion non-woven fabrics 62, there is cover nothing The both sides of woven fabric 13 are not easy never liquid-permeable sheet 11 and peel off the advantages of such.

Cover non-woven fabrics 13 can have the region there is no hole 14 at a part of anteroposterior direction LD, but if considering to carry The effect of highly-breathable, it would be desirable that be integrally provided with hole 14 throughout anteroposterior direction.On the other hand, in the width side of cover non-woven fabrics 13 Have to the both ends of WD there is no in the mode in the region in hole 14, if passing through the side beyond the punching that is carried out based on cutter Method opens up hole 14, then as described later, the fiber of the periphery 14e in hole 14 can laterally or vertical direction is kept out of the way and causes hole 14 periphery 14e warpages, so that the thickness of hole area becomes thicker than aporate area, therefore, are protected with reeling condition During the material of shroud non-woven fabrics 13, the part of aporate area becomes the state wound with being relaxed, can be in both sides so as to worry Aporate area form gauffer or folding line.Therefore, it is intended that mode is formed integrally with hole throughout width WD like that as shown 14.Also, by forming hole on cover non-woven fabrics 13 in the manufacturing process of diaper, thereby, it is possible to use non-porous material, Be capable of the forming part of arbitrarily control hole, but there are it is following the problem of：Due to wanting entrance hole to form equipment, whole manufacture Become larger and so that expense or the burden of maintenance become larger, in addition, being difficult to adjust hole shape and flexibility in high-speed production lines.Cause This, is manufactured preferably using throughout whole anteroposterior direction and whole width porose material is formed.

On the flat shape (opening shape) in each hole 14, can suitably it set, except being arranged to Figure 17 (a), figure Shown in 17 (b) outside such long hole shape, such circular shown in Figure 17 (c), Figure 17 (e), Figure 17 (d) institutes may be arranged as Show the arbitrary shape such as the polygons such as such ellipse, triangle, rectangle, diamond shape and star, cloud shape.On each The size in hole 14, is not particularly limited, and the full-size 14L on anteroposterior direction LD is preferably 0.4~1.8mm, particularly preferably Full-size 14W on 0.8~1.3mm, width WD is preferably 0.3~1.5mm, particularly preferably 0.5~1.0mm. In the case that the shape in hole 14 is shape longer in one direction as long hole shape, ellipse, rectangle, diamond shape etc., Full-size on length direction is preferably maximum sized less than 2.5 times on the direction vertical with length direction.In addition, In the case that the shape in hole 14 is shape longer in one direction, it is desirable to the length direction in hole 14 is anteroposterior direction LD, but Can also be width WD or tilted direction.

On the area and area occupation ratio in each hole 14, if suitably determine, but area preferably about 0.2~ 2.5mm²(particularly preferably about 0.5~1.5mm²), area occupation ratio is preferably about 1.0~15.0% (particularly preferably about 5.0~10.0%).

On the planar alignment in hole 14, can suitably determine, still, regularly planar alignment repeatedly is preferable, Except the rectangle clathrate as shown in Figure 17 (a) or the hexagonal lattice shape shown in Figure 17 (b) (these are also referred to as staggered), figure The rectangular grid shape shown in square lattice shape, Figure 17 (d) shown in 17 (c), the parallel body grid shown in Figure 17 (e) are (as schemed Show like that, in the way of the groups of multiple parallel rectangle nematics is provided with 2 groups in a manner of crossing one another) shape etc. (including make these The faciation of rectangle nematic is for anteroposterior direction LD in the shape of the angle tilt less than 90 degree) as regularly repeat outside, Can make hole 14 group (group unit arrangement either rule can also be it is irregular, can also be decorative pattern or word Shape etc.) regularly repeat.

On the anteroposterior direction interval 14y and width interval 14x in hole 14, can suitably determine, but in view of saturating Gas, it is desirable to which they are separately positioned in the range of 0.5~8mm, it is therefore highly desirable that they are separately positioned on to the model of 1~5mm In enclosing, if be averaged to anteroposterior direction interval 14y and width interval 14x, preferably their average value is set In the range of 1~5mm.Particularly, if as shown in Figure 17 (d), being shaped so as in anteroposterior direction LD for hole 14 is made Upper elongated shape, also, with anteroposterior direction interval 14y narrow the full-size 14L on the anteroposterior direction LD than hole 14 preceding Being listed on width WD for the hole 14 arranged in rear direction repeats at a prescribed interval, and the width interval in hole 14 14x it is bigger than full-size 14L on the anteroposterior direction LD in hole 14 (more preferably 3 times of the width size 14W in hole 14 with On), then gas permeability can be significantly increased, flexibility or bulkiness will not be damaged, in addition, important front and back during fabrication Upward piece tensile strength will not reduce, and be therefore preferred.

Can be any one in following manner as the cross sectional shape in hole 14：1st mode, wherein, as Figure 14 (a)- Shown in Figure 14 (c), the thickness of non-woven fabrics is thinning with the edge from surrounding's access hole 14 in hole 14, and the edge in hole 14 is located at nonwoven The centre of the thickness direction of cloth；2nd mode, wherein, as shown in Figure 15 (a)-Figure 15 (c), the periphery 14e in hole 14 is to face side Warpage, and it is generally uniform to tilt height 14h；And the 3rd mode, wherein, as shown in Figure 16 (a)-Figure 16 (c), around hole 14 Portion 14e is to face side warpage, and periphery 14e has the highest opposed parts of tilting height 14i and tilts height 14j most Low part, wherein, the minimum parts of height 14j that tilt are hung down with the tilting highest opposed parts of height 14i Opposed opposed part on straight direction.From the viewpoint of gas permeability is improved, it is desirable to be to have the part in hole 14 thicker than surrounding The 2nd mode and the 3rd mode, particularly, in the 3rd mode, due to hole 14 periphery 14e tilting height 14i, 14j it Gap that is poor and being formed helps to improve gas permeability, is therefore preferred.In the 2nd and the 3rd mode, tilting height 14g, 14h, 14i (apparent height being determined using light microscope, in the state of pressure is not applied) preferably about 0.2~ 1.2mm, in the 3rd mode, highest tilting height 14i is preferably about 1.1~1.4 times of minimum tilting height 14j.

Punching hole that hole 14 can be edge to be formed by the cut-out end of fiber or non-punching hole as follows (fibre density of periphery is high)：There's almost no the cut-out end of fiber in the edge in hole 14, and the non-punching hole be pass through by Extend and formed between pin insertion fiber.The former is adapted to above-mentioned 1st mode, and the latter is adapted to above-mentioned 2nd mode, the 3rd mode.Example Such as, if forming the hole 14 of shape longer in one direction, the fiber of the periphery 14e in hole 14 by the insertion of pin Laterally or vertical direction is kept out of the way and make it that the periphery 14e in hole 14 is tilted, also, the opposed part on the length direction in hole 14 The tilting height i directions more vertical than with length direction on opposed part tilting height j high.In above-mentioned 2nd mode and the 3rd In mode, the edge for the part that the periphery 14e on hole 14 is tilted to surface, there is also its fibre density than surrounding portion Divide low situation, but preferably equal extent or higher.Additionally, it is desirable that the fiber of the periphery 14e in hole 14 is fused with one another one Rise, but can not also be welded together.

The inner surface and the outer surface of cover non-woven fabrics 13 is adhered to opposed faces by hot-melt adhesive respectively.For cover non-woven fabrics 13 fixed area, in addition to the anteroposterior direction except being set as cover non-woven fabrics 13 is overall and width is overall, can also make one Divide and be not fixed.For example, if the width both ends of cover non-woven fabrics 13 are not fixed, even in absorber 56 sidepiece due to The influence in sidepiece rivel portion 60 and there occurs certain contraction in the state of, cover non-woven fabrics 13 is also not readily susceptible to the influence, from And there are following advantage：It is difficult to form gauffer or folding line on cover non-woven fabrics 13.On cover non-woven fabrics 13 in this case Width both ends non-fixed portions width, as long as suitably determining, for example, it can be set to be 3~10mm, It is preferably set to 5~8mm.

In the case of the cover non-woven fabrics 13 with hole 14, a preferable bonded structure is：Such as Figure 18 (a)-Figure 18 (d) It is shown, in the bonding region of at least one party of the inner surface and the outer surface of cover non-woven fabrics 13, in the region than being overlapped with hole 14 Peripheral part 14i by hot-melt adhesive 13H be not present at center side, it is hot beyond the peripheral part 14i in the region overlapped with hole 14 Fusible dose of 13H exists in continuous planar.It is not present due to being leaned in the peripheral part 14i in the region than being overlapped with hole 14 at center side Hot-melt adhesive 13H, therefore gas permeability is excellent.In addition, have only on the face of the opposite side in the face with skin contact such Bonded structure, at the part with such bonded structure, it is not easy to produce tacky skin because of hot-melt adhesive 13H and touch Sense, and the periphery 14e in hole 14 is reliably fixed to opposed faces.

As representational adhering state, following state may be exemplified out：As shown in Figure 18 (a), Figure 18 (b), with Hot-melt adhesive 13H is not present in the region that hole 14 overlaps, beyond the region overlapped with hole 14, hot-melt adhesive 13H is in company Continuous planar exists；And as shown in Figure 18 (c), Figure 18 (d), hot-melt adhesive 13H is in the peripheral part in the region overlapped with hole 14 14i overflows, and still, the peripheral part 14i in the region than being overlapped with hole 14 is leaned at center side and hot-melt adhesive 13H is not present, Beyond the peripheral part 14i in the region overlapped with hole 14, hot-melt adhesive 13H exists in continuous planar.The former state is special Desired state, still, since the peripheral part 14i in the region overlapped with hole 14 is the part of the periphery 14e of access hole 14, and Cover non-woven fabrics 13 has certain thickness, therefore, even if hot-melt adhesive 13H is overflowed in the part as the latter, but At the part that the face of side only opposite with the face of skin contact is bonded, with hand contact cover non-woven fabrics 13 and bonding plane During the face of opposite side, hot-melt adhesive 13H is hardly directly contacted.Also, the periphery in the region overlapped with hole 14 It is at portion 14i, hot-melt adhesive 13H overflow width preferably cover non-woven fabrics 13 thickness less than half and about Below 0.5mm.Additionally, it is desirable that hot-melt adhesive is not present in more than 80% part of the area in the region overlapped with hole 14 13H。

The cross sectional shape in the hole 14 on cover non-woven fabrics 13 is not particularly limited, but if making as described above around hole 14 Portion 14e becomes to the warpage portion of 11 side warpage of opaque liquid piece, then is observed with the face of the never opposite side of 11 side of liquid-permeable sheet Aperture is compared, and never the aperture of 11 side of liquid-permeable sheet observation is smaller.So as in side only opposite with the face of skin contact At the part that face is bonded, at the face of the opposite side with hand contact bonding plane, it is not easy to touch hot-melt adhesive 13H. In addition, warpage portion as support column relative to opposed faces supporting cover non-woven fabrics 13, therefore, with identical weight per unit area Non-porous non-woven fabrics, which is compared, becomes more bulk, and gas permeability is also more excellent.Further, since beyond the periphery 14e in hole 14 Region in, cover non-woven fabrics 13 is bonding with opaque liquid piece 11 easily to be floated (although drawn in Figure 18 (a)-Figure 18 (d) for Hot-melt adhesive 13H fills up the space between piece very close to each otherly, but the coating amount of essence is less, easily produces gap), therefore, The periphery 14e in hole 14 is reliably bonded, and becomes incomplete bonding (substantive bond area in region in addition It is smaller), thus, it is possible to obtain excellent flexibility and soft sense.

Such bonded structure can manufacture by the following method：By hot-melt adhesive in the case of without using air The bonding plane of apertured nonwoven cloth is coated in continuous planar, and is bonded together with opposed faces.This method is based on following new hairs It is existing：If hot-melt adhesive to be coated on to the bonding plane of apertured nonwoven cloth in the case of without using air in continuous planar, Before being bonded with opposed faces, due to the surface tension of hot-melt adhesive, in the Kong Chong with apertured nonwoven cloth of hot-melt adhesive The center of the part of conjunction offers mouth (hole), and the enlarged open is to the periphery in the hole of apertured nonwoven cloth.That is, if using this The adhering method of sample, then as the change as shown in Figure 19 in arrow, hot-melt adhesive 13H is being coated in continuous planar Before being bonded after apertured nonwoven cloth and with object Part, due to the surface tension of hot-melt adhesive 13H, in hot-melt adhesive The center of the part overlapped with the hole 14 of apertured nonwoven cloth of 13H offers mouth (hole) h, and opening h is extended to apertured nonwoven cloth Hole 14 periphery 14e.Therefore, after apertured nonwoven cloth is adhered to object Part, as shown in Figure 18 (a)-Figure 18 (d) Example, is not present hot-melt adhesive 13H in the major part in hole 14, and also there is no the hot-melt adhesive caused by air 13H comes off or oozes out from hole 14, therefore, at the face of the opposite side with hand contact bonding plane, it is not easy to produce tacky flesh Skin sense of touch.

, can be appropriate as the hole melt applicator in the case of without using air being in continuous planar coating hot-melt adhesive Ground uses：Slot coating, makes applicator head (mould) be contacted with the bonding plane of apertured nonwoven cloth, from the end for being arranged at applicator head It is coated along the gap extruding and hot melting bonding agent in CD directions (direction vertical with MD directions (conveying direction of manufacturing line))；Or The slot coating of person's non-contact type, in the state of the bonding plane for making applicator head (mould) from apertured nonwoven cloth floats, from setting The gap extruding and hot melting bonding agent along CD directions in the end of applicator head, by the official post of the conveying speed with apertured nonwoven cloth Hot-melt adhesive extends, so as to be applied as very thin membranaceous.

Sticking condition can determine suitably, but in order to make the hot-melt adhesive 13H overlapped with hole 14 rapidly be moved to The periphery 14e in hole 14 and be bonded the periphery 14e in hole 14 securely, it is desirable to meet at least one in following condition.

The melt viscosity (140 DEG C of temperature) of hot-melt adhesive：3000~2600mpas

The melt viscosity (160 DEG C of temperature) of hot-melt adhesive：1150~1550mpas

Temperature during hot-melt adhesive is applied to apertured nonwoven cloth：110~150 DEG C

For the coating amount of the hot-melt adhesive of apertured nonwoven cloth：1.0~8.0g/m²

Sphere time (open time) after the coating of hot-melt adhesive：0.1~1.0 second

Shown in another preferable bonded structure such as Figure 20 (a)-Figure 20 (f) in the case of cover non-woven fabrics 13 with hole 14 It is like that：The periphery 14e in the hole 14 on cover non-woven fabrics 13 become warpage warpage portion, and at least terminal part in warpage portion into To be pasted on the adhesive portion of opposed faces (in this case, being opaque liquid piece 11), and the bonding by hot-melt adhesive 13H Part beyond portion is not bonded.If having such bonded structure, since bond area diminishes without damaging flexibility, And the periphery 14e in hole 14 can be firmly secured to opposed faces.Particularly, warpage portion as support column relative to right Surface bearing cover non-woven fabrics 13 is put, therefore, becomes more bulk compared with the non-porous non-woven fabrics of identical weight per unit area, and thoroughly Gas is also more excellent.

As representational bonding way, such a way may be exemplified out：As shown in Figure 20 (a), Figure 20 (b), only The terminal part in warpage portion is adhered to opposed faces by hot-melt adhesive 13H；As shown in Figure 20 (c), Figure 20 (d), warpage portion it is whole Body is adhered to opposed faces by hot-melt adhesive 13H；And as shown in Figure 20 (e), Figure 20 (f), terminal part in warpage portion Than inboard portion in the outer part be adhered to opposed faces entirely through hot-melt adhesive 13H, the inboard portion of terminal part is not glued. At the inner peripheral surface in the hole 14 in warpage portion and the position overlapped with hole 14 of opposed faces, it is desirable to there is no bonding agent, but can also be slightly It is micro- to overflow.

On the adhering state in warpage portion, as long as at least terminal part is pasted on opposed faces by hot-melt adhesive 13H, then not It is limited to diagramatic way, as long as any one bonding way that the circumferential at least a portion in hole 14 is above-mentioned.For example, such as Mode shown in Figure 15 (a)-Figure 16 (c) makes warpage portion in the circumferential direction in hole 14 continuously and in the case of becoming tubular like that, excellent Choosing makes the circumferential generally in above-mentioned adhering state of the terminal part of tubular, but part can also be other adhering states or not glue Connect.In addition, in the case of being only formed at the circumferential part in hole 14 in warpage portion, as long as the terminal part of the part becomes above-mentioned Adhering state.Furthermore, it is possible to it is contaminated with different adhering states in multiple warpage portions.

(interior outer engaging portions)

Fixation on built-in body 200 relative to exterior body 12F, 12B, can be by as heat-sealing, ultrasonic sealing Engagement means or hot-melt adhesive based on material welding carry out.In the mode of diagram, by coated in built-in body 200 The back side on hot-melt adhesive, in this case, that is, pass through the back side coated in opaque liquid piece 11 and sidepiece rivel portion 60 Root portion 65 on hot-melt adhesive, to be fixed relative to the inner surface of exterior body 12F, 12B.By the built-in body 200 and outside The interior outer engaging portions 201,202 that dress body 12F, 12B are fixed together can be arranged in both overlapping almost whole regions, example Such as, can be arranged at the part in addition to width both ends of built-in body 200.Particularly, if throughout with cover nonwoven The region and region of the region by width both sides is provided with interior outer engaging portions 201,202 that cloth 13 overlaps, then being capable of jail Admittedly fixed cover non-woven fabrics 13 both sides, and the both sides of cover non-woven fabrics 13 are not easy to peel off from built-in body 200, therefore are excellent Choosing.

As shown in Fig. 9 and Figure 10 (a)-Figure 10 (c), it is preferred that the interior outer engaging portions 201 of front side exterior body 12F are in waist Side is configured to throughout width both ends, and width is interim with the edge of side between the crotch towards front side exterior body 12F Ground continuously reduces, so that the width both ends of side are formed with non-engaging portion between the crotch of front side exterior body 12F 203.Thus, even between the crotch of front side exterior body 12F the edge of side along width with linear or close to linear shape The lateral margin of shape and built-in body 200 is at a right angle or two Splittable of exterior of angular cross close to right angle, can also improve take a seat or The fitness of abdomen thigh during walking.

If the size of non-engaging portion 203 suitably determines, but in the case of infant's purposes, disengaged portion 203 anteroposterior direction is divided to can be sized to about 10~30mm, the width size of non-engaging portion 203 can be set It is about 10~25mm.In addition, in the case of adult's purposes, the anteroposterior direction of non-engaging portion 203 can be sized to About 10~30mm, the width of non-engaging portion 203 can be sized to about 10~25mm.Non-engaging portion 203 Leading edge (in the case of curve, referring to positioned at the position of most front side) be preferably in and lodge what part 68F was overlapped with front side half Position, wherein, the part of the rear side for the part 68F that particularly preferably partly lodges positioned at front side.

Particularly, if the elastomeric element of the stretching region A2 of the waist lower section of front side exterior body 12F is extended in front side In the non-engaging portion 203 that the width both ends of side are formed between the crotch of exterior body 12F non-engaging portion 203 is also existed Elastic telescopic on width, then the fitness of abdomen thigh is better.In addition, if the sidepiece pleat of the 1st mode as the aforementioned Pleat portion 60 using bending shape and sets half lodging part 68F of front side like that, then the fitness of abdomen thigh is better.Moreover, As it was previously stated, it is further preferred that front side half lodges part 68F extend to the side between the crotch of front side exterior body 12F edge it is identical Position or further along rear direction center side extend.Moreover, in the case where absorber 56 is formed as hourglass shape, if Half lodging part 68F of front side is located on the absorber with not overlapped with narrowed portion 56N, then the root in three-dimensional rivel portion is stablized, preceding Half lodging part 68F of side is easily erected, and is therefore preferred.

On the other hand, if the interior outer engaging portions 202 of rear side exterior body 12B are configured to throughout its entirety in the front-back direction And throughout width both ends, then built-in body 200 is not easy to be absorbed in gluteal fold, is therefore preferred.In this case, if such as The sidepiece rivel portion 60 of the 1st foregoing mode using bending shape and sets half lodging part 68B of rear side like that, then three-dimensional rivel The distal portion 60A in portion is not easy to topple over to opposite direction due to the inclination towards gluteal fold, is therefore preferred.Moreover, such as It is preceding described, if rear side half lodges part 68B extend to the position identical with the leading edge of rear side exterior body 12B or further to Anteroposterior direction LD center sides extend, then prevent anti-the being absorbed in property that built-in body 200 is absorbed in gluteal fold from further improving, with buttocks cover In the case of portion C, buttocks cover portion C is difficult to deviate, and the maintenance of buttocks cladding is excellent.More there is a choosing, rear side partly lodges part The anteroposterior direction length of 68B is longer than the anteroposterior direction length of the lodging part 67 of rear side.Moreover, be formed as hourglass in absorber 56 In the case of shape, if rear side half lodges, part 68B is located on the absorber with not overlapped with narrowed portion 56N, built-in Body 200 especially is not easy to be absorbed in gluteal fold, is therefore preferred.

In the case of bending shape as the sidepiece rivel portion 60 using the 1st mode, if setting front side half to lodge Part 68F and rear side half lodges and part 68B both sides and makes the length of half lodging part 68B of rear side and front side half lodges part 68F Length ratio be 0.9~1.5 scope, then three-dimensional rivel portion can be vertical throughout the high highland of longer scope in the longitudinal direction Rise, and distal portion 60A and root side part 60B will not exceedingly become freely respectively, therefore the conjunction around whole leg Body becomes good.

Explanation ＞s of the ＜ to the term in specification

As long as in the description without especially recording, then the following term in specification has following implication.

" front and rear (vertical) direction " refer to link veutro (front side) and dorsal part (rear side) direction, " width " refer to and The vertical direction of anteroposterior direction (left and right directions).

" face side " refer to when wearing Breeches type disposable diaper close to wearer skin side, " rear side " Refer to the side of the skin away from wearer farther out when wearing Breeches type disposable diaper.

" front " be finger, when wearing Breeches type disposable diaper close to wearer skin face, " the back of the body Face " refers to the face of the skin away from wearer farther out when wearing Breeches type disposable diaper.

" area occupation ratio " refers to that object part accounts for the ratio of unit area, and is with subject area (such as cover non-woven fabrics) In the gross area of object part (such as hole) remove the area and ratio as a percentage of the subject area.Between separating Every in the mode that ground is provided with multiple object parts, it is desirable to be：Object is set for the size containing more than 10 object parts Region, and try to achieve area occupation ratio.For example, for the area occupation ratio in hole, the trade name VHX- of such as KEYENCE companies can be used 1000 equipment, 20 times are set to by determination condition, and are measured in the following order.

(1) it is set as 20 times of lens, and focuses.The position of non-woven fabrics is adjusted, to there are 4 × 6 holes.

(2) brightness in the region of designation hole, measures the area in hole.

(3) color extraction of " the area measurement " of " measurement annotation " is clicked on.Click on the part in hole.

(4) " measuring in the lump " is clicked on, and chooses " display measurement result window ", is preserved with CSV data.

" elongation " refer to set nature it is a length of 100% when value.

" gel strength " measures as follows.49.0g artificial urine (by urea：2wt%, sodium chloride：0.8wt%, Calcium chloride dihydrate：0.03wt%, epsom salt：0.08wt% and ion exchange water：The mixing that 97.09wt% is mixed Thing) in addition 1.0g superabsorbent polymer, and using mixer stir.By the gel of generation 40 DEG C × 60%RH perseverance Room temperature is returned to after placing 3 hours in constant temperature and humidity groove, (I.techno Engineering companies manufacture using curdmeter： Curdmeter-MAX ME-500) measurement gel strength.

" weight of unit area " measures as follows.Standard state will be placed into after sample or test film preliminarily baking In the laboratory of (temperature of test site is 20 ± 5 DEG C, relative humidity is less than 65%) or device, it is allowed to become constant State.Preliminarily baking refer to by sample or test film relative humidity be 10~25%, temperature be the ring no more than 50 DEG C Constant is made under border.In addition, on the fiber that legal moisture rate is 0.0%, preliminarily baking can not also be carried out.Use examination The template (200mm × 250mm, ± 2mm) of sample selection, the test film in the state of constant is become cuts 200mm × 250mm The sample of the size of (± 2mm).The weight of sample is measured, 20 times of ground calculate weight of the weight as unit area of every square meter Amount.

" thickness " uses automatic thickness analyzer (KES-G5 portable compacts process of measurement) in load for 0.098N/cm²、 Pressurization area is 2cm²Under conditions of automatically determine.

Water absorption is come what is measured according to JIS K7223-1996 " the water vapor absorption test method of super absorbent resin ".

Absorption speed is to perform JIS K7224-1996 " height suctions using 2g high water absorbency polymers and 50g physiological saline " time untill to terminal " during the absorption speed test method of water-base resin ".

" unfolded state " refers to not shrink or the not loosely state of flat expansion.

The size of each several part is recorded as long as no special, then refers to the ruler under unfolded state rather than under natural long status It is very little.

In the case of not on the record of the environmental condition in experiment or measure, the experiment or measure are in standard Carried out in the laboratory of state (test site is below 20 ± 5 DEG C of temperature and 65% relative humidity) or device.

Industrial applicability

The present invention can be used in Breeches type disposable diaper.

Claims

1. a kind of Breeches type disposable diaper, its dividually possess the front side exterior body at least waist portion for forming front portion and The rear side exterior body of at least waist portion of rear body section is formed, the front side exterior body and rear side exterior body are among anteroposterior direction Place separates in the longitudinal direction,

The built-in body for being built-in with absorber extends to rear side exterior body from the front side exterior body in the longitudinal direction, and The front side exterior body and rear side exterior body are individually coupled to,

The Breeches type disposable diaper, which possesses, makes the front side both sides of exterior body and the both sides of rear side exterior body engage respectively Side seal portion, waist opening and the pair of right and left leg opening formed together,

It is characterized in that,

The built-in body possesses the three-dimensional rivel portion erected from both sides,

The solid rivel portion has：

Main part, its have root side part from the positive both sides of the built-in body to width center side that extend from The distal portion of outside extension from the end of the root side part to width；

Lodge part, it is the front that the built-in body is fixed at the anteroposterior direction both ends of the main part under lodging state Part；

Unfixed free portion, it is between front and rear lodging part；And

Rivel portion elastomeric element, it is arranged at least terminal part of the free portion along anteroposterior direction,

There is rear side partly to lodge part in the solid rivel portion, and the rear side half lodges part and the lodging part of rear side Front side is continuous or adjacent, and during side half lodges part in the rear, the distal portion is engaged in described under lodging state Side part, and described side part and the front of the built-in body are not engaged in together.

2. Breeches type disposable diaper according to claim 1, it is characterised in that

Entirety of the interior outer engaging portions that the built-in body and the rear side exterior body are bonded together on its anteroposterior direction And it is configured between width both ends.

3. Breeches type disposable diaper according to claim 2, it is characterised in that

The absorber has a narrowed portion among anteroposterior direction, the front and rear sides of the width of the narrowed portion than the narrowed portion Width it is narrow,

The rear side half, which lodges, extends partially into the position identical with the leading edge of rear side exterior body or before rear side exterior body Rear direction center side extends edge further along, and the rear side half lodges partly to be located in a manner of not overlapped with the narrowed portion On the absorber.

4. Breeches type disposable diaper according to claim 2, it is characterised in that

The rear side half, which lodges, extends partially into the position identical with the leading edge of rear side exterior body or before rear side exterior body Rear direction center side extends edge further along.

5. the Breeches type disposable diaper according to Claims 2 or 3, it is characterised in that

The anteroposterior direction size length of the lodging part on rear side of the anteroposterior direction size ratio of half lodging part of the rear side.

6. Breeches type disposable diaper according to claim 1 or 2, it is characterised in that

There is front side partly to lodge part in the solid rivel portion, and the front side half lodges part and the lodging part of front side Rear side is continuous or adjacent, lodges in the front side half in part, described side part is engaged in described built-in under lodging state The front of body, and distal portion and root side part are not engaged in together.