CN103717187B

CN103717187B - Disposable diaper and production method therefor

Info

Publication number: CN103717187B
Application number: CN201280037946.4A
Authority: CN
Inventors: 梁岛拓郎; 一万田俊明; 丸山浩志; 森田进之介
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2011-07-28
Filing date: 2012-07-24
Publication date: 2015-07-22
Anticipated expiration: 2032-07-24
Also published as: JP2013046751A; WO2013015278A1; JP6047323B2; CN103717187A

Abstract

The invention is a disposable diaper (1) provided with: an absorbent body (2) comprising an absorbent (23) and an outer composite sheet (22); and expandable side panels (3). The side panels (3) have two sheets (31, 32) and an elastic member (33), and have fastening tape (4) at the leading edge (3a). The outer composite sheet (22) has an anti-leak sheet (22a) and an outer nonwoven fabric (22b) that is joined thereto by means of an outer adhesive layer (61). The side panels (3) have main body side and front end side adhesive layers (35, 36). The base end (3b) is reinforced by means of a reinforcing adhesive layer (63) that overlaps or is continuous with the adhesive layer (35), and is joined to the outer composite sheet (22) by a connecting adhesive layer (62). The adhesive layers (35) are formed, at a distance from each other, on the outside of the adhesive layer (61) in the diaper width direction, and the adhesive layers (35, 63, 62, 61) are provided so that there are no gaps in the diaper width direction.

Description

Disposable diaper and its manufacture method

Technical field

The present invention relates to disposable diaper and its manufacture method.

Background technology

In the prior art, there will be a known a kind of disposable diaper of deploying type, in the absorber main body comprising absorber, be configured at the part of the posterior dorsal of wearer when dressing, be arranged on the flank sheet (with reference to patent documentation 1) of retractility flexible on the width of this absorbent main body.

This disposable diaper, flank sheet is manufactured in other operations being different from absorbent main body, and to be added in absorbent main body thus to manufacture and obtain, therefore, it is possible to suppress the garbage that the use amount of the material being used for flank sheet and this material produce, in environmental protection and excellence in reducing costs.

But, on the other hand, when tractive is arranged at the pull stap of the leading section of flank sheet etc. to dress diaper, the junction surface of flank sheet and absorbent main body and near it or the junction surface of flank sheet and pull stap and its near easily occur to rupture and destroy.

In order to eliminate above-mentioned this problem, a kind of method is proposed in above-mentioned patent documentation 1, the part overlapping with absorbent main body or pull stap in flank sheet is turned back and forms reinforcement nonwoven layer, this reinforcement nonwoven layer is engaged with absorbent main body and pull stap.

Prior art document

Patent documentation

Patent documentation 1:WO2008/149762A1

Summary of the invention

But, in patent documentation 1, to turn back thus form above-mentioned reinforcement nonwoven layer with form all sheet integrals of flank sheet, therefore, the rigidity at the junction surface of the end of the absorbent main body side of flank sheet, flank sheet and pull stap becomes too high, the bond layer of layers cementing is also increased, therefore, the flexibility of easy obstruction diaper and breathability etc.

Therefore, problem of the present invention is, provides a kind of reduction suppressing the flexibility of diaper etc., and improves the disposable diaper of the bond strength of flank sheet and absorbent main body.

The invention provides a kind of disposable diaper, it comprises: comprise absorber and be configured at the absorbent main body of outer composite sheet of outer surface side of this absorber; With the flank sheet of retractility of one or two sidepiece being installed on this absorbent main body.Above-mentioned flank sheet has two sheet materials and is fixed on the elastomeric element between these two sheet materials, is provided with pull stap in leading section.Above-mentioned outer composite sheet has: the outer non-woven fabrics of the leakproof sheet material of opaque liquid or difficult liquid permeability and the outer surface side engagement via outer bond layer and this leakproof sheet material.Above-mentioned flank sheet has: the fixing end of above-mentioned absorbent main body side of above-mentioned elastomeric element or the main body side bond layer near it; And fix the end of side, leading section of above-mentioned flank sheet of this elastomeric element or the front bond layer near it, the end of the above-mentioned absorbent main body side of this flank sheet uses reinforcement bond layer that is overlapping with aforementioned body side bonds oxidant layer or that be connected to strengthen, and this end strengthened is engaged with above-mentioned outer composite sheet by connecting adhesive oxidant layer.On diaper width direction, the foreign side that aforementioned body side bonds oxidant layer is more being leaned on than above-mentioned outer bond layer is separately formed, and this main body side bond layer, above-mentioned reinforcement bond layer, above-mentioned connecting adhesive oxidant layer and above-mentioned outer bond layer are arranged according to the mode not producing gap on diaper width direction.

In addition, the present invention also provides a kind of disposable diaper, and it comprises: comprise absorber and be configured at the absorbent main body of outer composite sheet of outer surface side of this absorber; With the flank sheet of retractility of one or two sidepiece being installed on this absorbent main body.Above-mentioned flank sheet has: two sheet materials and the elastomeric element be fixed between these two sheet materials, be provided with pull stap in leading section.Above-mentioned outer composite sheet has: the outer non-woven fabrics of the leakproof sheet material of opaque liquid or difficult liquid permeability and the outer surface side engagement via outer bond layer and this leakproof sheet material.Above-mentioned absorbent main body comprises: the face sheet being configured at the inner surface side of above-mentioned absorber and the stereo enclosure formation sheet material engaged with the both sides of this face sheet, above-mentioned stereo enclosure formation sheet material has a sheet material and is turned back and be stacked, two layers of structure part that its interlayer is engaged, these two layers structure part and above-mentioned flank chip bonding (following, the second invention refers to the present invention).

Accompanying drawing explanation

Fig. 1 observes the expansion plane graph seen as the disposable diaper of the first embodiment of the present invention from face sheet side.

Fig. 2 is the axonometric chart of the wearing state representing the disposable diaper shown in Fig. 1.

Fig. 3 represents the flank sheet of the disposable diaper shown in Fig. 1 and the amplification view near it.

Fig. 4 is IV-IV sectional view of Fig. 3.

Fig. 5 represents the flank sheet in the second embodiment of the present invention and the sectional view (being equivalent to Fig. 4) near it.

Fig. 6 represents the flank sheet in the 3rd embodiment of the present invention and the sectional view (being equivalent to Fig. 4) near it.

Fig. 7 represents the flank sheet in the 4th embodiment of the present invention and the sectional view (being equivalent to Fig. 4) near it.

Fig. 8 is the axonometric chart of an example of the manufacture method of the flank sheet represented in the first embodiment.

Fig. 9 is the axonometric chart of an example of the manufacture method of the flank sheet represented in the second embodiment.

Figure 10 is the expansion plane graph representing other embodiments of the present invention.

Figure 11 is the amplification view of the flank sheet represented in other embodiments of the present invention.

Figure 12 is the amplification view of the flank sheet represented in other embodiments of the present invention.

Figure 13 is the flank sheet of the preferred juncture representing flank sheet and absorbent main body and the amplification view near it.

Detailed description of the invention

Below, for the present invention, be preferred embodiment described with reference to accompanying drawing according to it.

As shown in Figure 1, below the disposable diaper 1(of the first embodiment of the present invention is also referred to as diaper 1) comprising: there is absorber 23 and be configured at the absorbent main body 2 of outer composite sheet 22 of outer surface side of this absorber 23; Be installed on the flank sheet 3,3 of the both sides of this absorbent main body 2.

As shown in Figure 1, absorbent main body 2 has the shape of lengthwise, comprising: the veutro portion A being positioned at wearer veutro during wearing; Be positioned at the drosal part B of wearer dorsal part; And be positioned at the crotch C in portion between hip.As shown in Figure 1, absorbent main body 2 is rectangular shape under the state of plane expansion.Flank sheet 3,3 is installed on the both sides of the absorbent main body 2 among drosal part B according to the mode that the edge, both sides respectively from absorbent main body 2 is given prominence to outward.

The length direction of disposable diaper 1 is the Y-direction in figure, is the direction identical with the length direction of absorbent main body.The width of disposable diaper 1 is the X-direction in figure, is the direction identical with the width of absorbent main body 2.In the following description, also by the direction corresponding with diaper length direction of the length direction of diaper or the component parts of this diaper referred to as Y-direction, by the direction corresponding with diaper width direction of the width of diaper or the component parts of this diaper referred to as X-direction.In addition, the inner surface in the component parts of diaper and diaper is the face when dressing towards the skin side of wearer, and the outer surface in the component parts of diaper and diaper is the face when dressing towards the opposition side of the skin of wearer.

As shown in Figure 1 and Figure 4, absorbent main body 2 has: the face sheet 21 of liquid permeability; Outer composite sheet 22; The absorber 23 of the liquid retainability between these two sheet materials 21,22.Outer composite sheet 22 has: the leakproof sheet material 22a of opaque liquid or difficult liquid permeability (comprising water-repellancy); With the outer non-woven fabrics 22b engaged with the outer surface side (in Fig. 4 Q side) of this leakproof sheet material 22a via outer bond layer 61.The flat shape of outer non-woven fabrics 22b is equal to mutually with absorbent main body 2, and as shown in Figure 4, leakproof sheet material 22a, except the width of X-direction is smaller, has the flat shape same with outer non-woven fabrics 22b.Due to the existence of outer non-woven fabrics 22b, the skinfeel of diaper outer surface is good.

In addition, in the both sides of the length direction of absorbent main body 2, be equipped with stereo enclosure formation sheet material 24,24 along this length direction.The stereo enclosure formation both sides of sheet material 24 at the length direction of absorbent main body 2, the outer composite sheet 22 be fixed on face sheet 21 via bond layer 62,66 ~ 68, extending out from the lateral margin of this face sheet and the sheet material 31 forming flank sheet 3.Bond layer 62,66,67 is formed in the scope of the roughly total length of absorbent main body 2, and bond layer 68 is arranged at veutro portion A and drosal part B, but is not arranged at crotch C.

Each stereo enclosure formation sheet material 24 has the elastomeric element 25 of stereo enclosure formation near the ora terminalis of width (X-direction) inward side of absorbent main body 2 along this ora terminalis, when dressing, due to the contractility of this elastomeric element 25, the part of this ora terminalis Rack of the distance in crotch C is left from face sheet 21 and forms stereo enclosure.In addition, the elastomeric element 26 of leg creases formation is configured with in the lower limb circumferential portion of the length direction both sides being configured at absorbent main body 2.

Stereo enclosure formation sheet material 24 shown in Fig. 4 forms two layers of structure by being folded as shown in Figure 4 by a sheet material, and is engaged this two-layer by the heat-fused portion (not shown) being configured to scatter (dispersion) shape and form a sheet.Dai Zhi, can not carry out a sheet material being used as stereo enclosure formation sheet material 24 foldedly yet.In addition, as shown in Figure 5, also a sheet material only can be used as double-layer structural in the part of secures resilient member 25.

As shown in Figure 1, diaper 1 is symmetrically formed relative to the length direction Central Line CL of absorbent main body 2.Therefore, for the juncture of the structure of flank sheet 3,3 and they and absorbent main body 2 and pull stap 4, be mainly described for the flank sheet on the left of Fig. 1, for the flank sheet on right side, be all same except symmetrical.

As shown in Figure 3, the flank sheet 3 in diaper 1 is rectangle under plane the state launched.In addition, as shown in Figure 4, flank sheet 3 has: two sheet materials 31,32 that non-woven fabrics is made; And to be fixed on the multiple elastomeric elements 33 between two sheet materials 31,32 in diaper width direction (X-direction) upper state of extending.The pull stap 4 for being fixed on by flank sheet 3 on other positions is provided with at the leading section 3a of flank sheet 3.

Elastomeric element 33 configures along the width (X-direction) of diaper 1 respectively.In addition, the multiple elastomeric elements 33 in each flank sheet 3 arrange the equal interval of cardinal principle and configure on the length direction (Y-direction) of diaper.

As shown in Figure 3 and Figure 4, the flank sheet 3 in the diaper 1 of the first embodiment has: main body side bond layer 35, front bond layer 36 and multiple middle bond layer 37.These bond layers 35,36,37 are all formed extended at both sides along diaper length direction (Y-direction).In addition, at these bond layers 35,36,37, multiple elastomeric element 33 utilizes the bonding agent forming each bond layer to be fixed between two sheet materials 31,32, and at the not intervenient position of elastomeric element 33, two sheet materials 31,32 directly engage each other by the bonding agent forming each bond layer.

Main body side bond layer 35 is arranged at absorbent main body 2 side on the bearing of trend of flank sheet 3, fix the end of absorbent main body 2 side of each elastomeric element 33 or its near.Front bond layer 36 is arranged at the 3a side, leading section on the bearing of trend of flank sheet 3, fix the end of the 3a side, leading section of the flank sheet 3 of each elastomeric element 33 or its near.Be provided with multiple in the zone line 30 in the region between the main body side bond layer 35 of middle bond layer 37 on the bearing of trend as flank sheet 3 and front bond layer 36.The width of middle bond layer 37 is all less than any one of above-mentioned two bond layers 35,36, zone line 30 spaced intermediate be formed multiple.On the bearing of trend of flank sheet 3, main body side bond layer 35 and and its adjacent middle bond layer 37 between, adjacent middle bond layer 37 each other, front bond layer 36 and and its middle bond layer 37 adjoined between, be formed with the non-adhesive region 38 of non-placement of adhesives respectively.In the diaper 1 of present embodiment, the extension mode of flank sheet 3 is to consistent with diaper width direction.

Main body side bond layer 35, front bond layer 36 and middle bond layer 37 all intersect with multiple (more preferably more than the 3) elastomeric element 33 extended in the X direction, and in diaper length direction (Y-direction) upper extension.Preferred main body side bond layer 35, front bond layer 36 and middle bond layer 37 all intersect with all elastomeric elements 33 extended in the X direction and above extend in diaper length direction (Y-direction), more preferably extend in the length range between lower edges 3u, 3d of flank sheet 3.

Non-adhesive region 38 too, intersects with multiple (more preferably more than the 3) elastomeric element 33 extended in the X direction and above extends in diaper length direction (Y-direction).Non-adhesive region 38 also preferably intersects with the whole elastomeric elements 33 extended in the X direction and above extends in diaper length direction (Y-direction), more preferably extends in the length range between lower edges 3u, 3d of flank sheet 3.

As shown in Figure 4, end below the 3b(of absorbent main body 2 side is also referred to as base end part 3b for flank sheet 3 in first embodiment) strengthened by the reinforcement bond layer 63 overlapping with main body side bond layer 35 part.More specifically, as shown in Figure 4, form the sheet material 32 of in above-mentioned two sheet materials 31,32 of flank sheet 3, to be arranged in flank sheet 3 outer surface sides (Fig. 4 Q side), turned back by the outer surface side (in Fig. 4 Q side) to this sheet material 32 at the base end part 3b of flank sheet 3, this part of turning back engages via the outer surface of reinforcement bond layer 63 with this sheet material 32.

On the other hand, the sheet material 31 forming in above-mentioned two sheet materials 31,32 of flank sheet 3, to be arranged in flank sheet 3 inner surface side (Fig. 4 P side) is not neither also turned back to inner surface side to the outer surface side of this sheet material 31.The base end part 3b of flank sheet 3 is reinforced by this structure, and therefore its rigidity appropriateness strengthens, and also has the sufficient intensity relative to the not cracky of the pulling force in X-direction in addition.

In addition, about the direction that the sheet material forming flank sheet is turned back, " inner surface side of sheet material " is P side in figure (side, face of the skin side towards wearer of flank sheet), and " the outer surface side of sheet material " is Q side in figure (side, face of the opposition side of the skin towards wearer of flank sheet).

The base end part 3b that the employing aforesaid way of flank sheet 3 is strengthened is engaged with outer composite sheet 22 by connecting adhesive oxidant layer 62.Connecting adhesive oxidant layer 62 shown in Fig. 4 engages between the base end part 3b of flank sheet 3 with leakproof sheet material 22a, and between the outer non-woven fabrics 22b that the base end part 3b of flank sheet 3 and the ora terminalis from leakproof sheet material 22a are extended out, leakproof sheet material 22a engages with between stereo enclosure formation sheet material 24 and/or face sheet 21.The base end part 3b of flank sheet is preferably engaged in leakproof sheet material 22a and the outer non-woven fabrics 22b part integrated with outer bond layer 61.In other words, the end of the base end part 3b(absorbent main body side of flank sheet) preferably engage via the part that outer bond layer 61 is integrated with leakproof sheet material 22a and outer non-woven fabrics 22b.

As shown in Figure 4, on the width (X-direction) of diaper 1, main body side bond layer 35 is separately formed in the position of side more outer than outer bond layer 61.That is, main body side bond layer 35 is formed at the foreign side (in Fig. 4 left side) of the end 61a of the diaper width direction outward side of outer bond layer 61, and main body side bond layer 35 and outer bond layer 61 do not have overlapped part, are separately formed in the X direction.

On the other hand, in diaper width direction (X-direction), main body side bond layer 35, reinforcement bond layer 63, connecting adhesive oxidant layer 62 and outer bond layer 61 overlap according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.Namely, main body side bond layer 35 and reinforcement bond layer 63 have overlapped part P3, reinforcement bond layer 63 and connecting adhesive oxidant layer 62 also have overlapped part P2, and connecting adhesive oxidant layer 62 and outer bond layer 61 also have overlapped part P1.A sheet material is between overlapped two bond layers, and a bond layer engages with the one side of this sheet material, and another bond layer engages with the another side of this sheet material.

In addition, main body side bond layer 35, reinforcement bond layer 63, connecting adhesive oxidant layer 62 and outer bond layer 61 are formed in the mode staggered in the X direction width center.In addition, these bond layers 35,63,62,61 go to configure in this tactic mode to inward side (in Fig. 4 right side) from the outward side (Fig. 4 left side) of X-direction according to end 35a, 63a, 62a, 61a of the 3a side, leading section of flank sheet 3.

Main body side bond layer 35, reinforcement bond layer 63, connecting adhesive oxidant layer 62 and outer bond layer 61 are preferably in the manner described above (mode particularly shown in Fig. 4), the total length of the Y-direction of pull stap 4 extends, more preferably in the same way, the total length of the Y-direction of flank sheet 3 extends.

In addition, as shown in Figure 4, its leading section 3a also uses a part second reinforcement bond layer 64 overlapping with front bond layer 36 to strengthen to the flank sheet 3 in the first embodiment.More specifically, as shown in Figure 4, form the sheet material 32 of in above-mentioned two sheet materials 31,32 of flank sheet 3, to be arranged in flank sheet 3 outer surface sides (Fig. 4 Q side), turned back to the outer surface side (in Fig. 4 Q side) of this sheet material 32 at the leading section 3a of flank sheet 3, this part of turning back engages with the outer surface of this sheet material 32 via the second reinforcement bond layer 64.On the other hand, the sheet material 31 being arranged in the inner surface side (Fig. 4 P side) of flank sheet 3 is not neither also turned back to inner surface side to the outer surface side of this sheet material 31.The leading section 3a of flank sheet 3 is reinforced by this structure, and therefore, its rigidity appropriateness strengthens, and also has the sufficient intensity of the traction force not cracky relative to X-direction in addition.

Then, the leading section 3a strengthened in this way that adopts of flank sheet 3 is engaged with pull stap 4 by the second connecting adhesive oxidant layer 65.

Pull stap 4 comprises: band base material 42; And engage with this band base material 42 and form the fastening sunny side parts (hook side parts) in the mechanicalness face in set portion 41.The part only formed by band base material 42 in pull stap 4 is overlap joint with the leading section 3a of flank sheet 3.In the present embodiment, the leading section 3a of flank sheet 3 is engaged by the second connecting adhesive layer 65 with between band base material 42.As method sunny side parts fastening for mechanicalness face are fixed on band base material 42, use hot melt or utilize the arbitrary joint method such as bonding of bonding agent.

In addition, be provided with at the outer surface of the veutro portion A of diaper 1 and make pull stap 4, more specifically make the engaging zones 5 of set portion 41 set (being adhesively fixed) of pull stap 4.

As shown in Figure 4, on the width (X-direction) of diaper 1, front bond layer 36 is separately formed in the position than the interior side of the second connecting adhesive oxidant layer 65.Namely, front bond layer 36 side (in Fig. 4 right side) in the end 65b of the diaper width direction inward side of the second connecting adhesive oxidant layer 65 is formed, front bond layer 36 and the second connecting adhesive oxidant layer 65 do not have overlapped part, are separately formed in the X direction.

On the other hand, in diaper width direction (X-direction), front bond layer 36, second reinforcement bond layer 64 and the second connecting adhesive oxidant layer 65 overlap according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.That is, front bond layer 36 and the second reinforcement bond layer 64 have overlapped part P4, and the second reinforcement bond layer 64 and the second connecting adhesive oxidant layer 65 also have overlapped part P5.A sheet material is between overlapped two bond layers, and one of them bond layer engages with the one side of this sheet material, and another bond layer engages with the another side of this sheet material.

In addition, front bond layer 36, second reinforcement bond layer 64 and the second connecting adhesive oxidant layer 65 are formed in the mode staggered in the X direction width center.In addition, these bond layers 36,64,65 according to the base end part 3b side of the flank sheet 3 in the both ends of respective X-direction end 36b, 64b, 65b from the inward side of X-direction (Fig. 4 right side) outward side (in Fig. 4 left side) go to configure in this tactic mode.

Front bond layer 36 and second is strengthened using bond layer 64 preferably in the manner described above (mode particularly shown in Fig. 4), extends, more preferably in the same way, extend in the total length of the Y-direction of flank sheet 3 in the total length of the Y-direction of pull stap 4.Second connecting adhesive layer 65 preferably the Y-direction of pull stap 4 total length more than 50% length range, (mode particularly shown in Fig. 4) extends in the manner described above, more preferably in the same way, extends in the total length of the Y-direction of pull stap 4.

The disposable diaper 1 of the first embodiment is through wearer with it time, with hands tractive pull stap 4, under the state that flank sheet 3 is extended, the pressing of the set portion 41 of this pull stap 4 is fixed on engaging zones 5.

According to the flank sheet 3 in the first embodiment, the base end part 3b of flank sheet 3 by sheet material 32 turn back and reinforcement bond layer 63 is reinforced, on the other hand, main body side bond layer 35 separates (mutually leaving) in the X direction with outer bond layer 61, therefore, with from sheet material 31 to compared with the mode engaged in the same position of X-direction between all layers of outer non-woven fabrics 22b, can prevent flank sheet 3 base end part 3b and produce excessively hardening part near it.

The bond layer separated in the X direction is that the meaning of main body side bond layer 35 and outer bond layer 61 is, strengthens the adhesive strength of flank sheet 3 and outer composite sheet 22, outward appearance when improving bonding.The configuration position of the main body side bond layer 35 in flank sheet 3 is easily wrinkling due to the contraction of elastomeric element 33.Main body side bond layer 35 and outer bond layer 61 in the X direction not separated (mutually not leaving) when, outer composite sheet 22 engages with the one side of fold that has of flank sheet 3, contact area minimizing, bond strength reduction.In addition, because the fold of flank sheet 3 also can appear at the outer surface of outer composite sheet due to joint.But in diaper 1, the bond layer separated in the X direction is main body side bond layer 35 and outer bond layer 61, therefore, it is possible to avoid this situation.

In addition, sheet material 31,32 etc. use the air permeable sheet such as non-woven fabrics, thus, also easily near the junction surface of flank sheet 3 and absorbent main body 2, guarantee good breathability.

On the other hand, main body side bond layer 35, reinforcement bond layer 63, connecting adhesive oxidant layer 62 and outer bond layer 61 overlap according to mode very close to each other each other, bond layer is actually continuous print in the X direction, therefore, can in flank sheet 3 and absorbent main body 2 from main body side bond layer 35 to the part of outer bond layer 61, even if guarantee that tractive flank sheet 3 is also difficult to damaged sufficient intensity.

And, according to the flank sheet 3 of the first embodiment, the leading section 3a of flank sheet 3 also by sheet material 32 turn back and the second reinforcement bonding agent 64 is strengthened, the leading section 3a be reinforced is engaged with pull stap 4 by the second connecting adhesive oxidant layer 65, therefore, it is possible to strengthen the intensity of the fixed position of the pull stap 4 in flank sheet 3.

And, front bond layer 36 and the second connecting adhesive oxidant layer 65 are separated in the X direction, therefore, and compared with situation about engaging in the same position of X-direction between all layers of the band base material 42 from sheet material 31 to pull stap 4, can prevent pull stap 4 and flank sheet 3 connecting portion and produce excessively hardening part near it.In addition, sheet material 31,32 etc. adopt the air permeable sheet such as non-woven fabrics, thus, also easily near flank sheet 3 and leading section 3a, guarantee good breathability.

On the other hand, front bond layer 36, second reinforcement bond layer 64 and the second connecting adhesive oxidant layer 65 overlap according to mode very close to each other each other, bond layer is actually continuous print in the X direction, therefore, can in pull stap 4 and flank sheet 3, the part of the second connecting adhesive oxidant layer 65 to front bond layer 36, even if guarantee that tractive pull stap 4 is also difficult to damaged sufficient intensity.

In the diaper 1 of the first embodiment, there is above-mentioned structure, therefore, even if apply strong traction force to pull stap 4 or flank sheet 3, be also difficult to, in the whole region from pull stap 4 to absorbent main body 2, breakages such as rupturing and break occurs.

In addition, zone line 30 in the disposable diaper 1 of the first embodiment, middle bond layer 37 is formed in the mode arranging non-adhesive agent region 38 between itself and adjacent bond layer, under the naturalness of diaper 1, due to the contraction of elastic part 33, two sheet materials 31,32 in non-adhesive region 38 stretch out respectively to the direction away from elastomeric element 33, on the two sides of flank sheet 3, form the multiple gauffers (not shown) to extend across the mode of multiple elastomeric element 33.And, even if this gauffer also can not disappear completely under the wearing state of diaper.Therefore, in flank sheet 3 due to bond layer 36 ~ 37 hardening part, particularly due to middle bond layer 37, hardening part is difficult to the skin encountering wearer, not easily makes it feel under the weather.

Above-mentioned main body side bond layer 35, reinforcement bond layer 63, connecting adhesive oxidant layer 62, outer bond layer 61, front bond layer 36, second reinforcement bond layer 64, second connecting adhesive oxidant layer 65 and middle bond layer 37, can by utilizing after various well-known method smears bonding agent on any one or two of two sheet materials clipping them, overlap these two sheet materials pressurization and being formed.

In addition, for the application pattern of the bonding agent of each bond layer of formation, spray gun, paint gun etc. is preferably used to carry out so-called comprehensive coating as adhesive applicating machine, but as adhesive applicating machine, also can use spray pearl rifle, spiral spray gun, Ω shape spray gun, transfer roll etc., carry out the pattern coating of linearity, helical form, Ω shape, point-like etc.

Be configured at the elastomeric element 33 of flank sheet 3, based on improving the flexibility of flank sheet 3 and guaranteeing the viewpoint of retractility, its width (size of Y-direction) or diameter are preferably more than 0.1mm, also be preferably below 2mm in addition, be more preferably below 1mm, more specifically, be preferably 0.1 ~ 2mm, be more preferably 0.1 ~ 1mm.

In addition, the number being configured at the elastomeric element 33 of flank sheet 3 is preferably more than 4, is more preferably more than 10, is also preferably less than 30 in addition, is more preferably less than 20, more specifically, is preferably about 4 ~ 30, is more preferably 10 ~ 20.

Based on the viewpoint etc. obtaining one or two above-mentioned above effects more effectively, the width of the part P3 of main body side bond layer 35 and reinforcement bond layer 63 overlap is preferably more than 2mm, be more preferably more than 4mm, be also preferably below 10mm in addition, be particularly preferably 4 ~ 10mm.Based on identical viewpoint etc., the width of the part P2 of reinforcement bond layer 63 and connecting adhesive oxidant layer 62 overlap is preferably more than 5mm, is more preferably more than 10mm, is also preferably below 20mm in addition, is particularly preferably 10 ~ 20mm.Based on identical viewpoint etc., the width of the part P1 of connecting adhesive oxidant layer 62 and outer bond layer 61 overlap is preferably more than 5mm, is more preferably more than 10mm, in addition, is also preferably below 20mm, is particularly preferably 10 ~ 20mm.In addition, the distance of separation (separating distance) of main body side bond layer 35 and outer bond layer 61 is preferably more than 0.5mm, is more preferably more than 5mm, is also preferably below 10mm in addition, is particularly preferably 5 ~ 10mm.In addition, the width of reinforcement bond layer 63 is preferably more than 5mm, is more preferably more than 10mm, is also preferably below 20mm in addition, is especially preferably 10 ~ 20mm.

Based on same viewpoint, the width of the part P4 of front bond layer 36 and the second reinforcement bond layer 64 overlap is preferably more than 2mm, is more preferably more than 5mm, is also preferably below 10mm in addition, is particularly preferably 5 ~ 10mm.Based on same viewpoint, the width of the part P5 of the second reinforcement bond layer 64 and the second connecting adhesive oxidant layer 65 overlap is preferably more than 5mm, is more preferably more than 10mm, is also preferably below 15mm in addition, is particularly preferably 10 ~ 15mm.In addition, the distance of separation of front bond layer 36 and the second connecting adhesive oxidant layer 65 is preferably more than 0.5mm, is more preferably more than 5mm, is also preferably below 10mm in addition, is particularly preferably 5 ~ 10mm.In addition, the width of the second reinforcement bond layer 64 is preferably more than 5mm, is more preferably more than 10mm, is also preferably below 20mm in addition, is particularly preferably 10 ~ 20mm.

The distance of separation of the distance of separation of the width of above-mentioned part P1 ~ P5, reinforcement bond layer 63 and the second reinforcement bond layer 64, main body side bond layer 35 and outer bond layer 61, front bond layer 36 and the second connecting adhesive oxidant layer 65 is all the size or distance that measure along the X direction.

The sizes of these various pieces etc. are that elastomeric element such as elastomeric element 33 grade is extended, flank sheet and diaper are launched until become design size (measure-alike with when the state lower plane shape of the impact getting rid of all elastomeric elements launches) state under measure.

In addition, flank sheet 3 in the diaper 1 of the first embodiment as shown in Figure 4, the sheet material 31 forming the inner surface side of flank sheet 3 is also engaged with stereo enclosure formation sheet material 24 by face side bond layer 66, also separates in the X direction between main body side bond layer 35 with face side bond layer 66.Thus, by the joint of face side bond layer 66, improving with the bond strength of absorbent main body 2 of flank sheet 3, and also can prevent the rigidity near this junction surface from excessively strengthening.In addition, in the flank sheet 3 in diaper 1, elastomeric element 33 is also individually fixed in main body side bond layer 35 and front bond layer 36 under elongation state.

In addition, the stereo enclosure in the diaper 1 of the first embodiment is formed uses sheet material 24 as shown in Figure 4, has a sheet material and is turned back and be stacked, two layers of structure part that its interlayer is engaged by thermal welding.These two layers of formations divided by via face side bond layer 66 with flank sheet 3, be more specifically engage with the sheet material 31 of the inner surface side of flank sheet 3.Two layers of structure part of stereo enclosure formation sheet material 24 engage with flank sheet 3, thus the strengthening with the bond strength of absorbent main body 2 of flank sheet 3.In addition, the stereo enclosure formation sheet material 24 in the diaper 1 of the first embodiment has: two layers of the outside engaged with flank sheet 3 construct part; Part is constructed with two layers of the inner side engaged with face sheet 21 via bond layer 67,68, thus, improving further with the bond strength of absorbent main body 2 of flank sheet 3.In addition, two layers that engage with flank sheet 3 construct part as shown in Figure 4, also engage with outer composite sheet 22 via connecting adhesive oxidant layer 62.The diaper 1 of the first embodiment is an embodiment of the second invention.

Stereo enclosure formation sheet material 24 in diaper 1 forms the inner surface of the both sides of absorbent main body 2.In addition, stereo enclosure formation sheet material 24 engages with the both sides of face sheet 21 of the inner surface side being configured at absorber 23.Flank sheet 3 preferably divides joint with the two layers of formations formed at such stereo enclosure formation sheet material 24.

As the thermal welding engaged the interlayer of two layers of structure part, such as, can adopt the combination etc. of heat-sealing, ultrasonic sealing function, high frequency involution or these two or more methods.In addition, also can be engaged by the bonding agent scattering shape configuration.

In addition, involution (sealing) pattern is preferably loose is scatter the dot pattern that shape forms heat-fused portion, such as, but be not limited thereto, the heat-fused portion of wire also can be form one or more linear pattern or lattice-shaped pattern etc. at the length direction etc. of diaper 1.In addition, also can be used together two or more involution patterns, such as, construct part and two layers of inner side of engaging with face sheet 21 construct part two layers of the outside engaged with flank sheet 3, involution pattern also can difference.

The constituent material of diaper 1 is described.

As form flank sheet 3 sheet material 31,32, the band base material 42 of pull stap 4, the various sheet materials all the time used in the absorbent commodity such as disposable diaper, physiological napkin can be used, not special restriction.

Such as, as sheet material 31,32, band base material 42, non-woven fabrics, fabric, thin film or their laminated sheet etc. can be used.

As the face sheet 21, outer composite sheet 22, the absorber 23 that form absorbent main body 2, the sheet material etc. all the time used in the absorbent commodity such as disposable diaper, physiological napkin can be used respectively, not special restriction.Such as, as face sheet 21, hydrophilic can be used and the non-woven fabrics of liquid permeability or three-dimensional apertured film etc.As outer composite sheet 22, its leakproof sheet material 22a can use the resin molding of opaque liquid or difficult liquid permeability (comprising water-repellancy), outer non-woven fabrics 22b can use the material comprising the non-woven fabrics (such as, hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spun-laced nonwoven fabric, needle punched non-woven fabrics etc.) made in various ways.Outer non-woven fabrics 22b also can be multi-ply construction.In addition, as absorber 23, can use by the fiber assemblies such as the coated paper pulp fiber of cored sheet material of the thin paper or non-woven fabrics comprising water penetration (also can be non-woven fabrics) or the material of absorbent core etc. of granule keeping water absorbent polymer wherein.As the stereo enclosure formation sheet material 24 forming stereo enclosure, film, non-woven fabrics, fabric or their laminated sheet etc. can be used.

As elastomeric element 33, the elastomeric element 25, the leg elastic members 26 that form stereo enclosure, the wire of polyethylene-alphaolefin copolymers such as comprising natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-polybutadiene copolymer, ethyl acrylate-ethylene etc. or the elastomeric element of rope form can be used.Based on the reduction viewpoint such as manufacturing cost and simplified manufacturing technique, the material that the multiple elastomeric elements 33 being configured at a flank sheet are preferably identical type configures with identical percentage elongation.

As based on the bonding agent 34 of secures resilient member 33, be used for the preferred material of the bonding agent engaged between each parts, can enumerate: amorphous polyolefin, ethylene-vinyl acetate copolymer (EVA), vinyl-acrylate copolymer (EEA), styrene butadiene styrene block copolymer (SBS) (SBS), styrene isoprene styrene block copolymer (SIS) (SIS), styrene-ethylene/butylene-styrene block copolymer (SEBS), the thermoplasticity polymer such as styrene-ethylene/propylene-styrene block copolymer (SEPS) with their mixture etc.Bonding agent is preferably heat molten type.

Below, the disposable diaper of the second ~ four embodiment of the present invention is described.Structure, the flank sheet of the flank sheet of the disposable diaper of the second ~ four embodiment are different with the first embodiment from the juncture of absorbent main body and pull stap.For the second ~ four embodiment, be mainly described the difference with the first embodiment, also the description thereof will be omitted to mark identical Reference numeral for identical point.For not mentioning that part suitably applies the explanation about the first embodiment especially.

Flank sheet 3A in second embodiment as shown in Figure 5, the end 3b(base end part 3b of absorbent main body 2 side) use the reinforcement bond layer 63A that is connected with main body side bond layer 35 to strengthen.More specifically, as shown in Figure 5, form the sheet material 32 of in two sheet materials 31,32 of flank sheet 3, to be arranged in flank sheet 3A outer surface sides (Fig. 5 Q side), turned back by the inner surface side (in Fig. 5 P side) to this sheet material 32 at the base end part 3b of flank sheet 3, this part of turning back engages with the inner surface of this sheet material 32 via reinforcement bond layer 63A.On the other hand, the sheet material 31 being arranged in the inner surface side (Fig. 5 P side) of flank sheet 3 is not neither also turned back to inner surface side to the outer surface side of this sheet material 31.In addition, in the not placement of adhesives between part and sheet material 31 of turning back of sheet material 32.The base end part 3b of flank sheet 3A is reinforced by this structure, and therefore rigidity appropriateness strengthens, and also has the sufficient intensity of the traction force not cracky relative to X-direction in addition.

The base end part 3b be reinforced in this manner of flank sheet 3A is engaged with the leakproof sheet material 22a of outer composite sheet 22 by connecting adhesive oxidant layer 62.

As shown in Figure 5, in the diaper of the second embodiment, be also on the width (X-direction) of diaper, main body side bond layer 35 is separately formed in the position of side more outer than outer bond layer 61.Namely, main body side bond layer 35 is formed at the foreign side (in Fig. 5 left side) of the end 61a of the diaper width direction outward side of outer bond layer 61, and main body side bond layer 35 and outer bond layer 61 are separately formed in the X direction not have the mode of overlapped part.

In addition, in diaper width direction (X-direction), main body side bond layer 35, reinforcement bond layer 63A, connecting adhesive oxidant layer 62 and outer bond layer 61 are arranged according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.More specifically, main body side bond layer 35 is connected (continuously) with reinforcement bond layer 63A or end is close to each other, reinforcement bond layer 63A and connecting adhesive oxidant layer 62 have overlapped part P2, and connecting adhesive oxidant layer 62 and outer bond layer 61 also have overlapped part P1.Between reinforcement bond layer 63A and connecting adhesive oxidant layer 62, between connecting adhesive oxidant layer 62 and outer bond layer 61, there is a sheet material respectively between wherein, one in two bond layers adjoined with this sheet material engages with the one side of this sheet material, and another engages with the another side of this sheet material.

In addition, main body side bond layer 35, reinforcement bond layer 63A, connecting adhesive oxidant layer 62 and outer bond layer 61 go to configure in this tactic mode to inward side (in Fig. 5 right side) from the outward side (Fig. 5 left side) of X-direction according to end 35a, 63a, 62a, 61a of the 3a side, leading section of flank sheet 3.

Main body side bond layer 35, reinforcement bond layer 63A, connecting adhesive oxidant layer 62 and outer bond layer 61 are preferably in the manner described above (mode particularly shown in Fig. 5), extend in the total length of the Y-direction of pull stap 4, more preferably in the same way, extend in the total length of the Y-direction of flank sheet 3A.

As shown in Figure 5, its leading section 3a also uses the second reinforcement bond layer 64A be connected with front bond layer 36 to strengthen to flank sheet 3A in second embodiment.More specifically, as shown in Figure 5, form the sheet material 32 of in two sheet materials 31,32 of flank sheet 3A, to be arranged in flank sheet 3A outer surface sides (Fig. 5 Q side), turned back to the inner surface side (in Fig. 5 P side) of this sheet material 32 at the leading section 3a of flank sheet 3A, this part of turning back is engaged with the inner surface of this sheet material 32 by the second reinforcement bond layer 64A.On the other hand, the sheet material 31 being arranged in the inner surface side (Fig. 5 P side) of flank sheet 3A is not neither also turned back to inner surface side to the outer surface side of this sheet material 31.The leading section 3a of flank sheet 3A is reinforced by this structure, and therefore, its rigidity appropriateness strengthens, and also has the sufficient intensity of the traction force not cracky relative to X-direction in addition.

The leading section 3a be reinforced in this manner of flank sheet 3A is engaged with pull stap 4 by the second connecting adhesive oxidant layer 65.

As shown in Figure 5, on the width (X-direction) of diaper, front bond layer 36 is separately formed in the position than the more inner side of the second connecting adhesive oxidant layer 65.Namely, front bond layer 36 is formed at the interior side (in Fig. 5 right side) of the end 65b of the diaper width direction inward side of the second connecting adhesive oxidant layer 65, and front bond layer 36 is formed not have the mode of overlapped part to separate in the X direction with the second connecting adhesive oxidant layer 65.

In addition, in diaper width direction (X-direction), front bond layer 36, second reinforcement bond layer 64A and the second connecting adhesive oxidant layer 65 are arranged according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.More specifically, front bond layer 36 is connected with the second reinforcement bond layer 64A or end is close to each other, and the second reinforcement bond layer 64A and the second connecting adhesive oxidant layer 65 also have overlapped part P5.A sheet material is had respectively between wherein between overlapped two bond layers.And sheet material is between the second reinforcement with between bond layer 64A and the second connecting adhesive oxidant layer 65, and one in two bond layers engages with the one side of this sheet material, and another engages with the another side of this sheet material.

In addition, front bond layer 36, second reinforcement bond layer 64A and the second connecting adhesive oxidant layer 65 are also formed in the mode staggered in the X direction width center.In addition, these bond layers 36,64A, 65 according to the base end part 3b side of flank sheet 3 end 36b, 64b, 65b from the inward side of X-direction (Fig. 5 right side) outward side (in Fig. 4 left side) go to configure in this tactic mode.

Front bond layer 36 and second is strengthened using bond layer 64A preferably in the manner described above (mode particularly shown in Fig. 5), extends, more preferably in the same way, extend in the total length of the Y-direction of flank sheet 3 in the total length of the Y-direction of pull stap 4.Second connecting adhesive layer 65 preferably the length range of more than 50% of the total length of the Y-direction of pull stap 4 in the manner described above (mode particularly shown in Fig. 5) extend, more preferably extend in the total length of the Y-direction of pull stap 4 in the same way.

According to the diaper of the second embodiment, the action effect same with the first embodiment can be played.In addition, because sheet material 32 is turned back by inner surface side, therefore compared with the diaper of the first embodiment, in the 3a side, leading section of flank sheet 3, do not worry that the tractive etc. due to active force when pull stap 4 operates or user finger etc. causes the return portion of sheet material 32 to be peeled off (stripping of reinforcement bond layer).

In the flank sheet 3B of the diaper of the 3rd embodiment, as shown in Figure 6, form the sheet material 31 of in two sheet materials 31,32 of flank sheet 3B, to be arranged in flank sheet 3B inner surface side (Fig. 6 P side), at base end part 3b and the leading section 3a of flank sheet 3B, turn back in outer surface side (in Fig. 6 Q side) respectively to this sheet material 32, this part of turning back is engaged with the outer surface of this sheet material 32 by reinforcement bond layer 63 and the second reinforcement bond layer 64.Then, the base end part 3b of the flank sheet 3B be reinforced in this manner and leading section 3a is engaged with outer composite sheet 22 and pull stap 4 by connecting adhesive oxidant layer 62 and the second connecting adhesive oxidant layer 65.

In the third embodiment, also be on the width (X-direction) of diaper, main body side bond layer 35 is separately formed in the position of side more outer than outer bond layer 61, in addition, in diaper width direction (X-direction), main body side bond layer 35, reinforcement bond layer 63, connecting adhesive oxidant layer 62 and outer bond layer 61 overlap according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.

In addition, in the third embodiment, also be on the width (X-direction) of diaper, front bond layer 36 is separately formed in the position than the more inner side of the second connecting adhesive oxidant layer 65, in addition, in diaper width direction (X-direction), front bond layer 36, second reinforcement bond layer 64 and the second connecting adhesive oxidant layer 65 overlap according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.

Therefore, according to the diaper of the 3rd embodiment, the action effect same with the first embodiment can be reached.In addition, compared with the diaper of the first embodiment, the sheet material 31 forming flank sheet 3 is continuous print with reinforcement bond layer 64,63, and therefore, the intensity of flank sheet 3 improves.

In the flank sheet 3C of the diaper of the 4th embodiment, as shown in Figure 7, two sheet materials 31,32 forming flank sheet 3C the base end part 3b of flank sheet 3C and leading section 3a any one in all do not turned back.Replace the structure of turning back, use and at the bonding agent of the weak bonding force of the degree of secures resilient member under elongation state 33, reinforcement bond layer 63C and the second reinforcement bond layer 64C can not be formed.The bonding agent forming reinforcement bond layer 63C and the second reinforcement bond layer 64C engages with sheet material 32, but preferably also engages with sheet material 31.Base end part 3b and the leading section 3a of flank sheet 3C is strengthened by these two bond layers 63C, 64C.Form the bonding agent of reinforcement bond layer 63C and the second reinforcement bond layer 64C preferably with 10g/m ²following grammes per square metre is coated on sheet material 32.

On the other hand, main body side bond layer 35 uses can be formed at the bonding agent of the relative strong bonding force of secures resilient member under elongation state 33 with front bond layer 36, main body side bond layer 35 and front bond layer 36 each in, sheet material 31,32 is engaged with each other, in addition, elastomeric element 33 is fixed between sheet material 31,32 under elongation state.

When reinforcement engages with both sheet material 32 and sheet material 31 with bond layer 63C, as long as it is different from the bonding agent forming main body side bond layer 35 to form the kind of the bonding agent of reinforcement bond layer 63C, application pattern or coating amount (grammes per square metre) etc., also easily differentiate reinforcement bond layer 63C and main body side bond layer 35.Form the reinforcement bonding agent of bond layer 63C for the bonding force of sheet material of opposition side of sheet material directly applying this bonding agent, more weak than the bonding force for same sheet of the bonding agent of formation main body side bond layer 35.

In addition, when the second reinforcement engages with both sheet material 32 and sheet material 31 with bond layer 64C, as long as it is different from the bonding agent forming front bond layer 36 to form the kind of the bonding agent of the second reinforcement bond layer 64C, application pattern or coating amount (quantitatively) etc., also easily differentiate that second strengthens with bond layer 64C and main body side bond layer 35.Form the bonding force of the sheet material of the opposition side of the sheet material for direct this bonding agent of coating of the bonding agent of the second reinforcement bond layer 64C, more weak than the bonding force for same sheet of the bonding agent forming front bond layer 36.

When by reinforcement with bond layer 63C and the second reinforcement bond layer 64C respectively with both sheet material 31 and sheet material 32 in conjunction with, these bond layers both can, by being also combined with sheet material 31 by the bonding agent being coated in sheet material 32 side and being formed, also can pass through also be combined with sheet material 32 by the bonding agent being coated in sheet material 31 side and formed.

In the 4th embodiment, also be on the width (X-direction) of diaper, main body side bond layer 35 is separately formed in the position of side more outer than outer bond layer 61, in addition, in diaper width direction (X-direction), main body side bond layer 35, reinforcement bond layer 63C, connecting adhesive oxidant layer 62 and outer bond layer 61 are arranged according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.

In addition, in the 4th embodiment, also be on the width (X-direction) of diaper, front bond layer 36 is separately formed in the position than the more inner side of the second connecting adhesive oxidant layer 65, in addition, in diaper width direction (X-direction), front bond layer 36, second reinforcement bond layer 64C and the second connecting adhesive oxidant layer 65 overlap according to the mode not producing gap (there is not the part of bond layer) on diaper width direction.

Therefore, according to the diaper of the 4th embodiment, the action effect same with the first and/or second embodiment can be played.In addition, according to the diaper of the 4th embodiment, because sheet material 32 does not have exterior surface side to turn back, therefore, its advantage is compared with the diaper of the first embodiment, in the 3a side, leading section of flank sheet 3, do not worry that the tractive etc. of the finger etc. due to active force when pull stap 4 operates or user causes the return portion of sheet material 32 to be peeled off (stripping of reinforcement bond layer).In addition, the interval shown in P2 in the figure 7, when whole sheet materials (solid, fin, leakproof, skin) is by the 63C integration of reinforcement bond layer, bond strength strengthens.

The manufacture method of disposable diaper of the present invention and flank sheet, without any restriction, can adopt arbitrary method to manufacture.

For the preferred example of the manufacture method of the flank sheet in disposable diaper of the present invention, be described for the situation of the flank sheet 3 in the diaper manufacturing the first ~ four embodiment, 3A ~ 3C.

For an example of the preferred manufacture method of the flank sheet 3 in the first embodiment, be described with reference to Fig. 8, the manufacturing installation 7 of the Stretchable sheet shown in Fig. 8 comprises: a pair long tectosome 71,71 of line conveying separating predetermined distance ground configured in parallel; A pair this line conveying with coiled elastic parts on long tectosome, the direction of this elastomeric element is made to become the elastomer winding mechanism 72 in the direction of carrying the length direction with long tectosome (in figure R direction) to intersect with this line; And will to be wound onto on this elastomer winding mechanism 72 and to be clipped in the integrated mechanism 73 of integration between a pair strip of sheet material 31 ', 32 ' by the conveying of this line with this elastomeric element 33 that long tectosome is carried.Preferably endless belt is used with long tectosome 71 as line conveying, this endless belt has: to the catatrepsis part of R direction movement with to the reverse movable part with the movement in the opposite direction of R side, only catatrepsis part engages with elastomeric element 33, is carried by this elastomeric element 33 to R direction.Endless belt is erected on pulley or gear, rotates this pulley or gear makes it drive.In addition, as the conveying of each line with long tectosome 71, also only can use the endless belt that above-mentioned, but as shown in Figure 8 and Figure 9, as the long tectosome 71 of each line conveying, preferably use upper and lower for this endless belt two-layer the structure configured.Speed difference is arranged to upper and lower band, thus, be wound on initial with on long tectosome 71,71 of a pair line conveying, adjustment in direction when overlooking being jagged elastomeric element 33 can be become elastomeric element 33 in the directionr at spaced intervals parallel shape be arranged with multiple states, and with this state, elastomeric element 33 can be fixed between a pair strip of sheet material 31 ', 32 '.As line conveying with long tectosome 71, also can be used in helically on side face be provided with groove, raised line round clava and make it around the structure of central axis rotary actuation.

In the preferred manufacture method of flank sheet 3, as shown in Figure 8, on the strip of sheet material 32 ' of the blank as sheet material 32, utilize well-known adhesive applicating machine 75, respectively zonally continuously coating for the formation of the bonding agent 63 ' and 64 ' of reinforcement with bond layer 63 and the second reinforcement bond layer 64, then, according to the mode covering this two bonding agents 63 ' and 64 ', use Sailor Guide(is not shown) etc., are turned back to not relative with strip of sheet material 31 ' side, face in the both sides of this strip of sheet material 32 '.On the other hand, on the strip of sheet material 31 ' of the blank as sheet material 31, utilize well-known adhesive applicating machine 76, respectively zonally continuously coating for the formation of the bonding agent 34 of main body side bond layer 35, front bond layer 36 and middle bond layer 37.In addition, also can by bonding agent 34 continuously coating on strip of sheet material 32 '.

Then, the strip of sheet material of two after adhesive-applying 31 ', 32 ' is converged according to the mode be clipped between the two by the elastomeric element 33 of elongation state, be used as a pair roller platen 74 of integrated mechanism 73, from pressurizeing up and down, its integration is made to them.Then, cut off with shut-off mechanisms 77 such as the cutters with cutting edge the elastomeric element 33 extended to side, obtain Stretchable sheet 3 '.

Then, use arbitrary shut-off mechanism, successively obtained Stretchable sheet 3 ' is cut into the length of each flank sheet.This makes it possible to the flank sheet 3 of continuous seepage first embodiment efficiently.

In the manufacture method of disposable diaper of the present invention, except using above-mentioned flank sheet 3 or this flank sheet 3 except the continuous screen cloth (web) 3 ' of the Stretchable sheet of the upper continuous print structure of length direction (Y-direction), just disposable diaper can be manufactured according to existing well-known method.

Such as, the continuous web 3 ' of the Stretchable sheet of the structure using flank sheet 3 to be connected, the preferred manufacture method manufacturing the disposable diaper of the first embodiment comprises following operation (I) ~ (VI).

(I) cutting is coated with the continuous web of the pull stap 4 of the bonding agent for the formation of the second connecting adhesive oxidant layer 65, it is installed on discontinuously the operation of the continuous web 3 ' of Stretchable sheet.Cut pull stap 4 is fixed on the continuous web 3 ' of Stretchable sheet by described bonding agent.The continuous web of pull stap 4 is preferably fixed with the continuum in set portion 41 before being cut along its length direction.

(II) pull stap 4 is turned back, utilize set portion 41 to be temporarily fixed on the operation of the continuous web 3 ' of this Stretchable sheet.In this operation, the part that the lateral margin of the continuous web 3 ' from Stretchable sheet in pull stap 4 extends out is turned back, temporarily fixes via set 41.

(III) bonding agent that the main body for the formation of connecting adhesive oxidant layer 62 connects is coated in continuously the operation in the continuous web 3 ' of Stretchable sheet.

(IV) cut the continuous web 3 ' of Stretchable sheet, be installed on the continuous web of outer composite sheet or the operation of face sheet compound continuum.

Face sheet compound continuum is by by integrated with the continuous web of face sheet for the continuous web of mesh sheet stereo enclosure formation sheet material and obtain.The continuous web of mesh sheet stereo enclosure formation sheet material and the continuous web of face sheet are by bond layer 67,68 integrated.In this operation, the flank sheet 3 of the band pull stap continuous web 3 ' of cutting Stretchable sheet obtained is installed on continuous web or the face sheet compound continuum of outer composite sheet.When being installed on the continuous web of outer composite sheet 22, being installed by bond layer 62, when this flank sheet 3 is installed on face sheet compound continuum, being installed by face side bond layer 66.

(V) continuous web of outer composite sheet 22 is sandwiched absorber 23 and integrated operation between with face sheet compound continuum.

In above-mentioned (IV) operation, when the flank sheet 3 of band pull stap is installed on the continuous web of outer composite sheet, the one side of this continuous web configures absorber, to cover the mode overlapping face sheet compound continuum in the face of the opposition side of this absorber.Then, the arbitrary method such as bonding agent, heat-sealing, ultrasonic sealing function is used to engage between the continuous web of outer composite sheet with face sheet compound continuum.On the other hand, in above-mentioned (IV) operation, when the flank sheet 3 of band pull stap is installed on face sheet compound continuum, the one side of this face sheet compound continuum configures absorber, to cover the continuous web of the mode overlapping outer layer composite sheet in the face of the opposition side of this absorber.Then, the arbitrary method such as bonding agent, heat-sealing, ultrasonic sealing function is used to engage between the continuous web of outer composite sheet with face sheet compound continuum.

(VI) obtained diaper continuum is cut into the operation of each disposable diaper.

In preferred manufacture method, the Stretchable sheet 3 ' of the structure that above-mentioned flank sheet 3 or this flank sheet 3 such as can be used to be connected in the longitudinal direction, manufactures diaper efficiently according to the step of following (1) ~ (9).(1) cutting is coated with the continuous web of the pull stap 4 of the bonding agent for the formation of the second connecting adhesive oxidant layer 65, it is installed on discontinuously the continuous web of the Stretchable sheet 3 ' obtained in the manner described above.(2) pull stap 4 is turned back, by set portion 41, it is temporarily fixed on Stretchable sheet 3 '.(3) (main body connects) bonding agent for the formation of connecting adhesive oxidant layer 62 is coated on Stretchable sheet 3 ' continuously.(4) in other operation, stereo enclosure formation is integrated with the continuous web of face sheet 21 by the continuous web of sheet material 24, form the face sheet compound continuum of the skin abutment face for the formation of absorbent main body.(5) in other operation, the continuous web of leakproof sheet material 22a is integrated with the continuous web of outer non-woven fabrics 22b, form the continuum of outer composite sheet 22.(6) cut Stretchable sheet 3 ' discontinuously, be installed on face sheet 21(and/or stereo enclosure formation sheet material) or outer composite sheet 22.(7) between face sheet 21 with outer composite sheet 22, absorber 23 is sandwiched also integrated.(8) product both sides (side foil extender) is folded to the inside.(9) product is cut into.

Be described with reference to the example of Fig. 9 to the preferable production process of the flank sheet 3A of the second embodiment, the manufacturing installation 7 of the Stretchable sheet shown in Fig. 9 also comprise have to carry with a pair line of manufacturing installation 7 same structure of the Stretchable sheet shown in Fig. 8 with long tectosome 71,71, elastomer winding mechanism 72, integrated mechanism 73 and shut-off mechanism 77 etc.

In the preferable production process of flank sheet 3A, as shown in Figure 9, on the strip of sheet material 32 ' of the blank as sheet material 32, utilize well-known adhesive applicating machine 75, respectively zonally continuously coating for the formation of the reinforcement bonding agent 63A ' of bond layer 63A and the second reinforcement bond layer 64A and 64A ', then, according to the mode of the entirety or an at least part for width that cover these two bonding agent 63A ' and 64A ', use Sailor Guide(is not shown) etc., are turned back to the side, face relative with strip of sheet material 31 ' in the both sides of this strip of sheet material 32 '.In addition, when this is turned back, the mode preferably slightly exposed from the edge part of part of turning back according to bonding agent 63A ' and 64A ' is turned back.

Next, the part mode each other of turning back of this strip of sheet material 32 ' is positioned at according to the bonding agent 34 for the formation of main body side bond layer 35, front bond layer 36 and middle bond layer 37, use adhesive applicating machine 76, bonding agent 34 is zonally coated on strip of sheet material 31 ' or strip of sheet material 32 ' respectively continuously.The coating of this bonding agent is preferably overlapping with the bonding agent 63A ' that the edge part from part of turning back exposes according to a part for the bonding agent forming main body side bond layer 35, and the mode that a part for the bonding agent of formation front bond layer 36 is overlapping with the bonding agent 64A ' that the edge part from part of turning back exposes applies.

Then, the mode of the strip of sheet material of two after adhesive-applying 34 31 ', 32 ' according to the elastomeric element 33 clipping elongation state between being converged, using a pair roller platen 74 as integrated mechanism 73, from pressurizeing up and down, its integration being made to them.Then, cut off with shut-off mechanisms 77 such as the cutters with cutting edge the elastomeric element 33 extended to side, obtain Stretchable sheet 3A '.

Then, utilize arbitrary shut-off mechanism, the Stretchable sheet 3A ' obtained is cut into successively the length of each flank sheet 3.So just can the flank sheet 3A of continuous seepage second embodiment efficiently.

For an example of the preferable production process of the flank sheet 3B of the 3rd embodiment, clearly state the difference with the manufacture method of the flank sheet 3 of above-mentioned first embodiment with reference to Fig. 8.

In the preferable production process of flank sheet 3B, as the strip of sheet material 31 ' of the blank of sheet material 31, use and compare as the wider material of the strip of sheet material 32 ' of the blank of sheet material 32, on this strip of sheet material 31 ', zonally continuously coating is for the formation of the bonding agent 34 of main body side bond layer 35, front bond layer 36 and middle bond layer 37.Then, by this strip of sheet material 31 ' with both do not had also the do not turn back strip of sheet material 32 ' of both sides of adhesive-applying 63 ', 64 ' to converge according to the mode of the elastomeric element 33 clipping elongation state between, using a pair roller platen 74 as integrated mechanism 73, from pressurizeing up and down, its integration is made to them.Then, utilize and there are the cut-out means 77 such as the cutter of cutting edge cut off the elastomeric element 33 extended to side.

Next, in the both sides of the strip of sheet material 31 ' extended out from the both side edges of strip of sheet material 32 ', zonally continuously coating is for the formation of the bonding agent 63 ' and 64 ' of reinforcement with bond layer 63 and the second reinforcement bond layer 64, use Sailor Guide(not shown) etc., to be turned back in these both sides and by being pressed on not relative with the strip of sheet material 31 ' face of strip of sheet material 32 '.Then, utilize arbitrary shut-off mechanism, the Stretchable sheet obtained is cut into successively the length of each flank sheet.This makes it possible to the flank sheet 3B of continuous seepage the 3rd embodiment efficiently.

Bonding agent 34 also can be coated on strip of sheet material 31 ' with replacement on strip of sheet material 32 ' by the adhesive applicating for the formation of whole or a part of bond layer.In addition, bonding agent 63 ' and 64 ' also can be coated in the position overlapping with the both sides of strip of sheet material 31 ' in strip of sheet material 32 ', to replace being coated on strip of sheet material 31 '.

For an example of the preferable production process of the flank sheet 3C of the 4th embodiment, clearly state the difference with the manufacture method of the flank sheet 3 of above-mentioned first embodiment with reference to Fig. 8.

In the preferable production process of flank sheet 3C, as the sheet material that strip of sheet material 31 ' and strip of sheet material 32 ' use width roughly equal.

Then, by for the formation of reinforcement with the bonding agent 63 ' and 64 ' of bond layer 63C and the second reinforcement bond layer 64C respectively zonally continuously coating on strip of sheet material 32 ', on the other hand, by the bonding agent 34 for the formation of main body side bond layer 35, front bond layer 36 and middle bond layer 37 respectively zonally continuously coating on strip of sheet material 31 '.

Next, the mode of the strip of sheet material of two after adhesive-applying 31 ', 32 ' according to the elastomeric element 33 clipping elongation state is between converged, utilizes a pair roller platen 74 as integrated mechanism 73, from pressurizeing up and down, its integration is made to them.Then, utilize and there are the cut-out means 77 such as the cutter of cutting edge cut off the elastomeric element 33 extended to side.Then, utilize arbitrary shut-off mechanism, the Stretchable sheet obtained is cut into successively the length of each flank sheet.This makes it possible to the flank sheet 3C of continuous seepage the 4th embodiment efficiently.

In addition, also can replace at the upper adhesive-applying of strip of sheet material 32 ' 63 ' and 64 ', at the upper adhesive-applying 34 of strip of sheet material 31 ', and at the upper adhesive-applying of strip of sheet material 31 ' 63 ' and 64 ', go up adhesive-applying 34 at strip of sheet material 32 '.

Do not engage with there is no the strip of sheet material 31 ' or 32 ' of direct adhesive-applying 63 ', 64 ' to make reinforcement bond layer 63C and the second reinforcement bond layer 64C, preferably in the coating carrying out bonding agent 63 ', 64 ' period that the coating than bonding agent 34 is more Zao, or wherein on a strip of sheet material after adhesive-applying 63 ', 64 ', after using cooling body to make the cooling of these bonding agents, solidification, then another strip of sheet material overlapping.

For the manufacture method of disposable diaper of the present invention, also the flank sheet 3A ~ 3C obtained in the manner described above can be used to manufacture disposable diaper, in the case, except using flank sheet 3A ~ 3C, disposable diaper can be manufactured according to existing well-known method.

As the device gripping elastomeric element between a pair strip of sheet material, the device shown in Figure 11 and Figure 12 of patent documentation 1 etc. also can be used.

Above, preferred embodiment describe the present invention according to it, but the present invention is not limited to the respective embodiments described above, various change can be had.

Such as, pull stap 4 be hook side parts (sunny side parts) fastening for mechanicalness face are attached to the band base material comprising non-woven fabrics etc. by thermal welding or bonding agent etc. one side on and formed, also which can be replaced, adhesive-applying in the one side of band base material comprising non-woven fabrics etc., forms the set portion comprising bonding agent.In addition, make the engaging zones of set portion 41 set comprising the fastening hook side parts in mechanicalness face, both can be the hair side parts (back parts) fastening in the outer surface engagement mechanical face of outer composite sheet 22 and formed, also can be the outer surface being made up of outer composite sheet 22 non-woven fabrics that zygosity is good, using this regulation region as engaging zones.

In addition, also can disposable diaper 1A as shown in Figure 10 such, pull stap 4 is anchored on a pair veutro fin 8,8 of the both sides of the absorbent main body 2 be arranged in veutro portion A.As the formation material of veutro fin 8, non-woven fabrics, fabric, film or their laminated sheet etc. can be used.

In addition, in the accompanying drawings such as Fig. 4, illustrate and utilize the band base material 42 of bonding agent by pull stap 4 and the example of outer surface (not being the face of the sheet material 31 side) side engagement of sheet material 32, but bonding agent also can be utilized inner surface (be not the face of the sheet material 32 side) side engagement of band base material 42 with sheet material 31, or utilize bonding agent to be engaged with the opposite face of sheet material 31 and/or 32 by band base material 42.

In addition, disposable diaper can not have stereo enclosure yet, can, in the both sides of absorbent main body 2, engage fixing by flank sheet 3,3A ~ 3C with face sheet 21 and outer composite sheet 22 yet.

In addition, elastomeric element 33 preferably roughly configures along the width of diaper, such as, relative to the straight line orthogonal with diaper length direction Central Line CL, both can configure abreast, and also can configure in the mode of the angle forming less than 30%.In addition, as shown in figure 11, elastomeric element 33 also can form zigzag.

In addition, in the example shown in Figure 4, in the position more leaning on the foreign side (in Fig. 4 left side) of X-direction than front bond layer 36 of flank sheet 3, form sheet material 31,32 not by non-adhesive region, front that bonding agent is bonding, in the position more leaning on CL side, Central Line than main body side bond layer 35 of flank sheet 3, form sheet material 31,32 not by main body side non-adhesive region that bonding agent is bonding, as shown in figure 12, such non-adhesive region, front and/or main body side non-adhesive region can not also be formed.

In addition, there is the flank sheet 3 of pull stap 4,3A ~ 3C and also only can be formed at either side in the left and right sides of the length direction of absorbent main body 2.In addition, the whole region of zone line 30 also can be made up of non-adhesive region 38.

In addition, between main body side bond layer 35 and front bond layer 36, also can replace arranging the middle bond layer 37 of continuous print along the Y direction, and sheet material 31,32 is set each other in multiple heat-fused portion of not overlapping with elastomeric element 33 position thermal welding.In addition, in the whole region between main body side bond layer 35 and front bond layer 36, sheet material 31,32 is engaged with each other by the bonding agent that bonding force also can be utilized more weak than the bonding agent of above-mentioned two bond layers 35,36.

In addition, the sheet material 31 or sheet material 32 that form flank sheet 3 are turned back by above-mentioned first embodiment ~ the 3rd embodiment, with reinforcement bond layer 63(second reinforcement bond layer 64) engage, but, also can not turn back but overlap other sheet material and with reinforcement bond layer 63(second reinforcement bond layer 64) engage.

In addition, the content that the explanation clipped in an above-mentioned embodiment and only embodiment have can be applicable to other embodiment respectively, and in addition, the content in each embodiment can suitably phase double replacement between embodiment.

Figure 13 represents flank sheet 3 in the present invention and the flank sheet of preferred juncture of absorbent main body 2 and the amplification view near it.

In the embodiment shown in Figure 13, same with the diaper 1 of above-mentioned first embodiment, stereo enclosure formation sheet material 24 has a sheet material and is turned back and be stacked, two layers of structure part 24a, 24b that its interlayer is engaged by thermal welding.More specifically, two layers with the outside engaged with flank sheet 3 construct part 24a, and two layers of inner side that is overlapping with the sidepiece of face sheet 21 and that engage with this face sheet 21 construct part 24b.

As shown in figure 13, multiple heat-fused portion 27 of interlayer distributed shape configuration engage two layers of structure part 24a in outside, and two layers of structure part 24b of inner side are also that multiple heat-fused portion 27 that the distributed shape of interlayer configures engage.

At two layers of structure part 24a in outside, the engaging zones 28a(of the band shape that the length direction utilizing multiple heat-fused portion 27 to be formed in diaper extends is hereinafter referred to as outside engaging zones 28a).Improve the viewpoint of the constant intensity of flank sheet 3 and absorbent main body 2 from abundant and prevent viewpoint etc. damaged near the root of flank sheet 3, length on the diaper length direction of outside engaging zones 28a is preferably the total length of flank sheet 3, more preferably extends forwards, backwards from the part overlapping with flank sheet 3.Outside engaging zones 28a also can be formed in the total length of diaper.In addition, near the elastomeric element 25 that heat-fused portion 27 is preferably formed at the stereo enclosure of stereo enclosure formation sheet material 24, the part that configures of the elastomeric element 26 of the leg creases formation of crotch C etc., arrange with avoiding this elastomeric element.

Heat-fused portion 27 in the engaging zones 28a of outside is preferably formed multiple according to interconnected mode with scattering shape, and about the area of each heat-fused portion 27, its lower limit is preferably 0.5mm ²above, 1.5mm is more preferably ²above, its upper limit is preferably 10mm ²below, 5mm is more preferably ²below.In addition, the central point spacing of the heat-fused portion 27 of outside engaging zones 28a is preferably below 5mm, is more preferably below 3mm, and lower limit is the distance that heat-fused portion 27 adjoins one another.In addition, about the area occupation ratio of the heat-fused portion 27 of outside engaging zones 28a, its lower limit is preferably more than 2%, is more preferably more than 5%, and its upper limit is preferably less than 15%, is more preferably less than 10%.

The area occupation ratio (%) of heat-fused portion 27 is total area ratios (%) relative to the gross area of outside engaging zones 28a of heat-fused portion 27.The gross area of outside engaging zones 28a is the area in the region that heat-fused portion 27 distributes according to same pattern, is the summation of the area comprising heat-fused portion 27 and other parts.

Like this, by heat-fused portion 27 by enhancing the rigidity of stereo enclosure formation sheet material 24, the outside engaging zones 28a of the structure of intensity engages with flank sheet 3, easily can improve the constant intensity of flank sheet 3 relative to absorbent main body 2 thus, in addition, the breakage near the root that can also prevent flank sheet 3.The joint of outside engaging zones 28a and flank sheet 3 preferably uses the bonding agents such as heat molten type bonding agent, but also can use heat-sealing, ultrasonic sealing function, high frequency involution etc.Outside engaging zones 28a and the junction surface also preferred total length throughout flank sheet 3 of flank sheet 3, more preferably from flank sheet 3 to its before and after extend.

At two layers of structure part 24b of inner side, multiple heat-fused portion 27 is utilized to be formed in the engaging zones 28b(of the band shape that the length direction of diaper extends hereinafter referred to as territory, inboard land 28b).From the viewpoint etc. making stereo enclosure formation sheet material 24 stressed equably during tractive flank sheet 3, territory, the inboard land length of 28b on the length direction of diaper is preferably the total length of flank sheet 3, more preferably extends forwards, backwards from the part overlapping with flank sheet 3.Territory, inboard land 28b also can throughout the total length of diaper.Preferred size and the heat-fused portion 27 configured for territory, inboard land 28b of the heat-fused portion 27 in the engaging zones 28a of outside are also same.

Above-mentioned first, the third and fourth embodiment is also the second working of an invention mode, but the flank sheet 3 in the second invention also can not strengthen the end 3b of its absorbent main body side.In addition, about the flank sheet 3 in the second invention, not limiting with the juncture of sheet material 31,32 of elastomeric element 33, flank sheet 3 does not also limit with the juncture of outer composite sheet 22.In addition, in the second invention, in diaper width direction (X-direction), the main body side bond layer 35 of flank sheet 3 also can be overlapping with outer bond layer 61, and main body side bond layer 35 and reinforcement bond layer 63 also can separate (mutually leaving) on diaper width direction.In addition, connecting adhesive oxidant layer 62 also can be separated in the direction of the width with outer bond layer 61.

For above-mentioned embodiments of the present invention, also disclose following content (manufacture method of disposable diaper, disposable diaper).

< 1 > disposable diaper, it comprises: comprise absorber and be configured at the absorbent main body of outer composite sheet of outer surface side of this absorber; With the flank sheet of retractility of one or two sidepiece being installed on this absorbent main body,

Above-mentioned flank sheet has two sheet materials and is fixed on the elastomeric element between these two sheet materials, is provided with pull stap in leading section,

Above-mentioned outer composite sheet has: the outer non-woven fabrics of the leakproof sheet material of opaque liquid or difficult liquid permeability and the outer surface side engagement via outer bond layer and this leakproof sheet material,

Above-mentioned flank sheet has: the fixing end of above-mentioned absorbent main body side of above-mentioned elastomeric element or the main body side bond layer near it; And fix the end of side, leading section of above-mentioned flank sheet of this elastomeric element or the front bond layer near it, the end of the above-mentioned absorbent main body side of this flank sheet uses reinforcement bond layer that is overlapping with aforementioned body side bonds oxidant layer or that be connected with aforementioned body side bonds oxidant layer to strengthen, this end strengthened is engaged with above-mentioned outer composite sheet by connecting adhesive oxidant layer

On diaper width direction, aforementioned body side bonds oxidant layer is separately formed in the position of side more outer than above-mentioned outer bond layer, and this main body side bond layer, above-mentioned reinforcement bond layer, above-mentioned connecting adhesive oxidant layer and above-mentioned outer bond layer are arranged according to the mode not producing gap on diaper width direction.

The disposable diaper of < 2 > as described in above-mentioned < 1 >, aforementioned body side bonds oxidant layer, above-mentioned reinforcement bond layer, above-mentioned connecting adhesive oxidant layer and above-mentioned outer bond layer are formed in the mode making respective width center and stagger in diaper width direction (X-direction).

The disposable diaper of < 3 > as described in above-mentioned < 1 > or < 2 >, aforementioned body side bonds oxidant layer, above-mentioned reinforcement bond layer, above-mentioned connecting adhesive oxidant layer and above-mentioned outer bond layer go to configure in this tactic mode to inward side (in Fig. 4 right side) from the outward side (Fig. 4 left side) of diaper width direction (X-direction) according to end 35a, 63a, 62a, 61a of the side, leading section of above-mentioned flank sheet.

The disposable diaper of < 4 > according to any one of above-mentioned < 1 > ~ < 3 >, aforementioned body side bonds oxidant layer, above-mentioned reinforcement bond layer, above-mentioned connecting adhesive oxidant layer and above-mentioned outer bond layer are in the mode of defined any one of above-mentioned < 1 > ~ < 3 >, total length in the diaper length direction (Y-direction) of pull stap extends, total length preferably in this direction (Y-direction) of flank sheet extends.

The disposable diaper of < 5 > according to any one of above-mentioned < 1 > ~ < 4 >, on the width of diaper, the width of the part P3 of main body side bond layer and reinforcement bond layer overlap is more than 2mm, is preferably 4 ~ 10mm.

The disposable diaper of < 6 > according to any one of above-mentioned < 1 > ~ < 5 >, on the width of diaper, the width of the part P2 of reinforcement bond layer and connecting adhesive ply is more than 5mm, is preferably 10 ~ 20mm.

The disposable diaper of < 7 > according to any one of above-mentioned < 1 > ~ < 6 >, on the width of diaper, the width of the part P1 of connecting adhesive oxidant layer and outer bond layer overlap is more than 5mm, is preferably 10 ~ 20mm.

The disposable diaper of < 8 > according to any one of above-mentioned < 1 > ~ < 7 >, on the width of diaper, the distance of separation of main body side bond layer and outer bond layer is more than 0.5mm, is preferably 5 ~ 10mm.

The disposable diaper of < 9 > according to any one of above-mentioned < 1 > ~ < 8 >, the leading section of above-mentioned flank sheet uses the second reinforcement bond layer that is overlapping with above-mentioned front bond layer or that be connected with above-mentioned front bond layer to strengthen, and this leading section strengthened uses the second connecting adhesive oxidant layer to engage with above-mentioned pull stap.

The disposable diaper of < 10 > as described in above-mentioned < 9 >, on diaper width direction, above-mentioned front bond layer is separately formed in the position than the more inner side of the second connecting adhesive oxidant layer, and this front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer are arranged according to the mode not producing gap on diaper width direction.

The disposable diaper of < 11 > as described in above-mentioned < 9 > or < 10 >, above-mentioned front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer are formed in the mode making respective width center and stagger in diaper width direction (X-direction).

The disposable diaper of < 12 > according to any one of above-mentioned < 9 > ~ < 11 >, above-mentioned front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer according to the base end part side (absorbent main body side) of above-mentioned flank sheet end 36b, 64b, 65b from the inward side of diaper width direction (X-direction) (Fig. 4 right side) outward side (in Fig. 4 left side) go to configure in this tactic mode.

The disposable diaper of < 13 > according to any one of above-mentioned < 9 > ~ < 12 >, above-mentioned front bond layer and the second reinforcement bond layer are in the mode according to any one of above-mentioned < 9 > ~ < 12 >, total length in the diaper length direction (Y-direction) of pull stap extends, total length preferably in this direction (Y-direction) of flank sheet extends.

The disposable diaper of < 14 > according to any one of above-mentioned < 9 > ~ < 13 >, on the width of diaper, the width of the part P4 of front bond layer and the second reinforcement bond layer overlap is more than 2mm, is preferably 5 ~ 10mm.

The disposable diaper of < 15 > according to any one of above-mentioned < 9 > ~ < 14 >, on diaper width direction, the width of the part P5 of the second reinforcement bond layer and the second connecting adhesive ply is more than 5mm, is preferably 10 ~ 15mm.

The disposable diaper of < 16 > according to any one of above-mentioned < 9 > ~ < 15 >, on diaper width direction, the distance of separation of front bond layer and the second connecting adhesive oxidant layer is more than 0.5mm, is preferably 5 ~ 10mm.

The disposable diaper of < 17 > according to any one of above-mentioned < 1 > ~ < 16 >, in above-mentioned two sheet materials of above-mentioned flank sheet, be only that the sheet material of the outer surface side being positioned at this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and/or leading section, this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer and/or the second reinforcement bond layer.

The disposable diaper of < 18 > as described in above-mentioned < 17 >, in above-mentioned two sheet materials of above-mentioned flank sheet, be only that the sheet material of the outer surface side being positioned at this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet or leading section, this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer or the second reinforcement bond layer.

The disposable diaper of < 19 > as described in above-mentioned < 17 > or < 18 >, in above-mentioned two sheet materials of above-mentioned flank sheet, be only that the sheet material of the outer surface side being positioned at this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and leading section, this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer and the second reinforcement bond layer.

The disposable diaper of < 20 > according to any one of above-mentioned < 1 > ~ < 16 >, in above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the outer surface side of this flank sheet is turned back to the inner surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and/or leading section, and this part of turning back engages with the inner surface of this sheet material via above-mentioned reinforcement bond layer and/or the second reinforcement bond layer.

The disposable diaper of < 21 > as described in above-mentioned < 20 >, in above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the outer surface side of this flank sheet is turned back to the inner surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet or leading section, and this part of turning back engages with the inner surface of this sheet material via above-mentioned reinforcement bond layer or the second reinforcement bond layer.

The disposable diaper of < 22 > as described in above-mentioned < 20 > or < 21 >, in above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the outer surface side of this flank sheet is turned back to the inner surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and leading section, and this part of turning back engages with the inner surface of this sheet material via above-mentioned reinforcement bond layer and the second reinforcement bond layer.

The disposable diaper of < 23 > according to any one of above-mentioned < 1 > ~ < 16 >, in above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the inner surface side of this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and leading section, and this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer and the second reinforcement bond layer.

The disposable diaper of < 24 > according to any one of above-mentioned < 1 > ~ < 23 >, above-mentioned absorbent main body comprises: the face sheet being configured at the inner surface side of above-mentioned absorber and the stereo enclosure formation sheet material engaged with the both sides of this face sheet

Above-mentioned stereo enclosure formation sheet material has a sheet material and is turned back and be stacked, two layers of structure part that its interlayer is engaged by thermal welding, these two layers structure part and above-mentioned flank chip bonding.

The disposable diaper of < 25 > according to any one of above-mentioned < 1 > ~ < 24 >, in the both sides of the length direction of above-mentioned absorbent main body, along this length direction configuration stereo enclosure formation sheet material, this stereo enclosure formation with sheet material respectively in the both sides of the length direction of this absorbent main body, face sheet is fixed on via bond layer, the sheet material of the above-mentioned outer composite sheet extended out from the lateral margin of this face sheet and the above-mentioned flank sheet of formation.

The disposable diaper of < 26 > according to any one of above-mentioned < 1 > ~ < 25 >, above-mentioned flank sheet has multiple middle bond layer between aforementioned body side bonds oxidant layer and above-mentioned front bond layer, and multiple elastomeric element is fixed between above-mentioned two sheet materials via the bonding agent forming this each bond layer.

The disposable diaper of < 27 > as described in above-mentioned < 26 >, at the zone line as the region between aforementioned body side bonds oxidant layer and above-mentioned front bond layer, be formed with multiple above-mentioned middle bond layer discontinuously, between main body side bond layer and the middle bond layer be adjacent, adjacent middle bond layer each other, between front bond layer and the middle bond layer be adjacent, be formed with the non-adhesive region not having placement of adhesives respectively.

The disposable diaper of < 28 > as described in above-mentioned < 26 > or < 27 >, the width of above-mentioned middle bond layer is all less than any one of aforementioned body side bonds oxidant layer and above-mentioned front bond layer.

The disposable diaper of < 29 > according to any one of above-mentioned < 26 > ~ < 28 >, aforementioned body side bonds oxidant layer, above-mentioned front bond layer and above-mentioned middle bond layer all extend with intersecting at diaper width direction (X-direction) upper multiple preferably elastomeric elements of more than 3 extended and go up in diaper length direction (Y-direction).

The disposable diaper of < 30 > according to any one of above-mentioned < 1 > ~ < 29 >, the base end part (end of absorbent main body side) of above-mentioned flank sheet engages with between above-mentioned leakproof sheet material by above-mentioned connecting adhesive oxidant layer, and by between the base end part (end of absorbent main body side) of this flank sheet and the outer non-woven fabrics extended out from the ora terminalis of this leakproof sheet material, this leakproof sheet material engages with between stereo enclosure formation sheet material and/or face sheet.

The disposable diaper of < 31 > as described in above-mentioned < 30 >, in the both sides of the length direction of above-mentioned absorbent main body, along this length direction configuration stereo enclosure formation sheet material, the base end part (end of absorbent main body side) of above-mentioned flank sheet engages with between above-mentioned leakproof sheet material by above-mentioned connecting adhesive oxidant layer, and by between the base end part (end of absorbent main body side) of this flank sheet and the outer non-woven fabrics extended out from the ora terminalis of this leakproof sheet material, this leakproof sheet material engages with between stereo enclosure formation sheet material or face sheet.

The disposable diaper of < 32 > as described in above-mentioned < 30 > or < 31 >, the base end part (end of absorbent main body side) of above-mentioned flank sheet engages with between above-mentioned leakproof sheet material by above-mentioned connecting adhesive oxidant layer, and by between the base end part (end of absorbent main body side) of this flank sheet and the outer non-woven fabrics extended out from the ora terminalis of this leakproof sheet material, this leakproof sheet material engages with between stereo enclosure formation sheet material and face sheet.

The disposable diaper of < 33 > according to any one of above-mentioned < 1 > ~ < 32 >, the base end part (end of absorbent main body side) of above-mentioned flank sheet engages via the part that outer bond layer is integrated with above-mentioned leakproof sheet material and above-mentioned outer non-woven fabrics.

The disposable diaper of < 34 > according to any one of above-mentioned < 1 > ~ < 33 >, in the both sides of the length direction of above-mentioned absorbent main body, stereo enclosure formation sheet material is configured with along this length direction

The sheet material forming the inner surface side of above-mentioned flank sheet is also engaged with stereo enclosure formation sheet material by face side bond layer, also above separates in diaper width direction (X-direction) between main body side bond layer with face side bond layer.

The disposable diaper of < 35 > according to any one of above-mentioned < 1 > ~ < 34 >, in the both sides of the length direction of above-mentioned absorbent main body, stereo enclosure formation sheet material is configured with along this length direction

Above-mentioned stereo enclosure formation sheet material has: construct part with two layers of the outside of above-mentioned flank chip bonding; Part is constructed with two layers of the inner side engaged with face sheet 21 via bond layer.

The manufacture method of < 36 > disposable diaper, it manufactures the disposable diaper according to any one of above-mentioned < 17 > ~ < 19 >, and the manufacture method of this disposable diaper comprises following operation:

As be positioned at above-mentioned flank sheet outer surface side sheet material blank strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of above-mentioned reinforcement bond layer and above-mentioned second reinforcement bond layer, the operation of being turned back in the both sides of this strip of sheet material in the mode covering these two bonding agents; On the strip of sheet material of the blank of the sheet material as the inner surface side or outer surface side that are positioned at this flank sheet, respectively zonally continuously coating for the formation of the operation of the bonding agent of aforementioned body side bonds layer and above-mentioned front bond layer; With after adhesive-applying, two strip of sheet material of the blank of above-mentioned two sheet materials as this flank sheet of formation to clip the operation of the state integration of elastomeric element between the two, are manufactured the operation of above-mentioned flank sheet by process.

The manufacture method of < 37 > disposable diaper, it manufactures the disposable diaper according to any one of above-mentioned < 20 > ~ < 22 >, and the manufacture method of this disposable diaper comprises following operation:

As be positioned at above-mentioned flank sheet outer surface side sheet material blank strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of above-mentioned reinforcement bond layer and above-mentioned second reinforcement bond layer, the operation of being turned back in the both sides of this strip of sheet material in the mode of the entirety or a part that cover these two bonding agents; The part mode each other of turning back of this strip of sheet material is positioned at, using the bonding agent zonally operation of continuously coating on the strip of sheet material of the blank of the sheet material as the inner surface side or outer surface side that are positioned at above-mentioned flank sheet respectively for the bonding agent forming aforementioned body side bonds oxidant layer and above-mentioned front bond layer; With through by above-mentioned two strip of sheet material after adhesive-applying with the state clipping elastomeric element between the two under integration operation, manufacture the operation of above-mentioned flank sheet.

The manufacture method of the disposable diaper described in < 38 > < 36 > or < 37 >, the continuous web of the Stretchable sheet of the structure using above-mentioned flank sheet to be connected is to manufacture the disposable diaper according to any one of < 17 > ~ < 22 >

The manufacture method of this disposable diaper comprises following operation:

The continuous web of the pull stap of the bonding agent be coated with for the formation of the second connecting adhesive oxidant layer is cut off, is installed on the operation of the continuous web of the above-mentioned Stretchable sheet of the structure that above-mentioned flank sheet is connected discontinuously;

Pull stap is turned back, is temporarily fixed on the operation of the continuous web of above-mentioned Stretchable sheet by set portion;

The bonding agent that main body for the formation of connecting adhesive oxidant layer connects is coated in continuously the operation in the continuous web of above-mentioned Stretchable sheet;

Cut off the continuous web of above-mentioned Stretchable sheet, be installed on the continuous web of the continuous web of outer composite sheet or above-mentioned mesh sheet stereo enclosure formation sheet material integrated with the continuous web of face sheet after the operation of face sheet compound continuum;

By the continuous web of above-mentioned outer composite sheet and above-mentioned face sheet compound continuum to sandwich the operation of the mode integration of absorber between; With

The diaper continuum obtained is cut into the operation of disposable diaper one by one.

The manufacture method of the disposable diaper according to any one of < 39 > above-mentioned < 36 > ~ < 38 >, above-mentioned flank sheet uses the manufacturing installation of Stretchable sheet to manufacture, and the manufacturing installation of this Stretchable sheet comprises: long tectosome is used in a pair line conveying separating predetermined distance ground configured in parallel; A pair this line conveying with coiled elastic parts on long tectosome, the direction of this elastomeric element is made to become the elastomer winding mechanism carrying the direction intersected with the length direction of long tectosome with this line; And will to be wound onto on this elastomer winding mechanism and to be carried by this line and to be clipped between a pair strip of sheet material and the integrated mechanism of integration with this elastomeric element that long tectosome is carried.

The manufacture method of < 40 > disposable diaper, it manufactures the disposable diaper described in above-mentioned < 23 >, and the manufacture method of this disposable diaper comprises following operation:

As be positioned at above-mentioned flank sheet inner surface side sheet material blank the first strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of aforementioned body side bonds oxidant layer and above-mentioned front bond layer, using this first strip of sheet material with as second strip of sheet material of blank of sheet material of outer surface side being positioned at above-mentioned flank sheet, converge and the operation of integration in the mode of the elastomeric element clipping elongation state between the two; With process in the both sides of the first strip of sheet material extended from the both side edges of the second strip of sheet material, zonally continuously coating is for the formation of the bonding agent of reinforcement bond layer and the second reinforcement bond layer, are turned back by the operation be pressed on not relative with the first strip of sheet material face of the second strip of sheet material in these both sides, manufacture the operation of above-mentioned flank sheet.

The manufacture method of < 41 > disposable diaper, it manufactures the disposable diaper according to any one of above-mentioned < 1 > ~ < 35 >, it manufactures the continuous web of the Stretchable sheet of the structure that flank sheet is connected, use this continuous web, disposable diaper is manufactured according to the step of following (1) ~ (9)

(1) continuous web of the pull stap of the bonding agent be coated with for the formation of the second connecting adhesive oxidant layer is cut off, be installed on the continuous web of the Stretchable sheet of the structure that flank sheet is connected discontinuously.(2) pull stap turned back and be temporarily fixed on Stretchable sheet.(3) (main body connects) bonding agent for the formation of connecting adhesive oxidant layer is coated on Stretchable sheet continuously.(4) in other operation, by stereo enclosure and face sheet 21 integration, top-sheet continuum is formed.(5) in other operation, by leakproof sheet material and the integration of outer non-woven fabrics, outer composite sheet is formed.(6) Stretchable sheet is cut off discontinuously, be installed on face sheet (stereo enclosure) or outer composite sheet.(7) between face sheet with outer composite sheet, absorber is sandwiched and integrated.(8) product both sides (side foil extender) is folded to the inside.(9) product is cut into.

The manufacture method of < 42 > disposable diaper, according to the method for " the manufacturing the operation of above-mentioned flank sheet " described in above-mentioned < 36 > or < 37 >, manufacture the continuous web of the Stretchable sheet of the structure that above-mentioned flank sheet is connected.

< 43 > disposable diaper, it comprises: comprise absorber and be configured at the absorbent main body of outer composite sheet of outer surface side of this absorber; With the flank sheet of retractility of one or two sidepiece being installed on this absorbent main body,

Above-mentioned flank sheet has: two sheet materials and the elastomeric element be fixed between these two sheet materials, be provided with pull stap in leading section,

Above-mentioned absorbent main body comprises: the face sheet being configured at the inner surface side of above-mentioned absorber and the stereo enclosure formation sheet material engaged with the both sides of this face sheet,

Above-mentioned stereo enclosure formation sheet material has a sheet material and is turned back and be stacked, two layers of structure part that its interlayer is engaged, these two layers structure part and above-mentioned flank chip bonding.

Disposable diaper described in < 44 > above-mentioned < 43 >, in the both sides of the length direction of above-mentioned absorbent main body, stereo enclosure formation sheet material is configured with along this length direction

Above-mentioned stereo enclosure formation sheet material has: construct part with two layers of the outside of above-mentioned flank chip bonding; Part is constructed with two layers of the inner side engaged with face sheet via bond layer.

Disposable diaper described in the above-mentioned < 43 of < 45 > > or < 44 >, in above-mentioned stereo enclosure formation sheet material, construct part with above-mentioned two layers of above-mentioned flank chip bonding, its interlayer engages by scattering the heat-fused portion that shape formed, about the area of each heat-fused portion 27, its lower limit is 0.5mm ²above, 1.5mm is preferably ²above, the upper limit is 10mm ²below, 5mm is preferably ²below.

Disposable diaper according to any one of < 46 > above-mentioned < 43 > ~ < 45 >, in above-mentioned stereo enclosure formation sheet material, construct part with above-mentioned two layers of above-mentioned flank chip bonding, its interlayer is engaged by heat-fused portion, about the area occupation ratio of heat-fused portion, its lower limit is preferably more than 2%, be more preferably more than 5%, its upper limit is preferably less than 15%, is more preferably less than 10%.

Disposable diaper according to any one of < 47 > above-mentioned < 43 > ~ < 46 >, in the both sides of the length direction of above-mentioned absorbent main body, stereo enclosure formation sheet material is configured with along this length direction, this stereo enclosure formation with sheet material respectively in the both sides of the length direction of this absorbent main body, face sheet is fixed on via bond layer, the sheet material of the above-mentioned outer composite sheet extended out from the lateral margin of this face sheet and the above-mentioned flank sheet of formation.

Utilizability in industry

The invention provides a kind of reduction suppressing the flexibility of diaper etc., improve the disposable diaper of the bond strength of flank sheet and absorbent main body.

Claims

1. a disposable diaper, it comprises: comprise absorber and be configured at the absorbent main body of outer composite sheet of outer surface side of this absorber; With the flank sheet of retractility of one or two sidepiece being installed on this absorbent main body, the feature of this disposable diaper is:

Described flank sheet has two sheet materials and is fixed on the elastomeric element between these two sheet materials, and leading section is provided with pull stap,

Described outer composite sheet has: the outer non-woven fabrics of the leakproof sheet material of opaque liquid or difficult liquid permeability and the outer surface side engagement via outer bond layer and this leakproof sheet material,

Described flank sheet has: the fixing end of described absorbent main body side of described elastomeric element or the main body side bond layer near it; And fix the end of side, leading section of described flank sheet of this elastomeric element or the front bond layer near it, the end of the described absorbent main body side of this flank sheet uses reinforcement bond layer that is overlapping with described main body side bond layer or that be connected to strengthen, this end reinforced is engaged with described outer composite sheet by connecting adhesive oxidant layer

On diaper width direction, described main body side bond layer is separately formed in the position of side more outer than described outer bond layer, and this main body side bond layer, described reinforcement bond layer, described connecting adhesive oxidant layer and described outer bond layer are arranged according to the mode not producing gap on diaper width direction.

2. disposable diaper as claimed in claim 1, is characterized in that:

Described main body side bond layer, described reinforcement bond layer, described connecting adhesive oxidant layer and described outer bond layer are formed in the mode making respective width center and stagger on diaper width direction and X-direction.

3. disposable diaper as claimed in claim 1 or 2, is characterized in that:

Described main body side bond layer, described reinforcement bond layer, described connecting adhesive oxidant layer and described outer bond layer go to configure in the tactic mode of described main body side bond layer, described reinforcement bond layer, described connecting adhesive oxidant layer and described outer bond layer from the outward side in diaper width direction to inward side according to the end of the side, leading section of described flank sheet.

4. disposable diaper as claimed in claim 1 or 2, is characterized in that:

Described main body side bond layer, described reinforcement bond layer, described connecting adhesive oxidant layer and the described outer bond layer total length in the diaper length direction of described pull stap extends, or the total length in the diaper length direction of described flank sheet extends.

5. disposable diaper as claimed in claim 1, is characterized in that:

The leading section of described flank sheet uses the second reinforcement bond layer that is overlapping with described front bond layer or that be connected to strengthen, and this leading section reinforced utilizes the second connecting adhesive oxidant layer to engage with described pull stap.

6. disposable diaper as claimed in claim 5, is characterized in that:

On diaper width direction, described front bond layer is separately formed in the position than the more inner side of the second connecting adhesive oxidant layer, and this front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer are arranged in the mode not producing gap on diaper width direction.

7. the disposable diaper as described in claim 5 or 6, is characterized in that:

Described front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer are formed in the mode making respective width center and stagger on diaper width direction and X-direction.

8. the disposable diaper as described in claim 5 or 6, is characterized in that:

Described front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer go to configure in the tactic mode of described front bond layer, the second reinforcement bond layer and the second connecting adhesive oxidant layer in side from the inward side in diaper width direction according to the end of the base end part side of described flank sheet outward.

9. the disposable diaper as described in claim 5 or 6, is characterized in that:

Described front bond layer and the second reinforcement bond layer total length in the diaper length direction of described pull stap extends, or the total length in the diaper length direction of described flank sheet extends.

10. disposable diaper as claimed in claim 5, is characterized in that:

In described two sheet materials of described flank sheet, be only that the sheet material of the outer surface side being positioned at this flank sheet is turned back to the outer surface side of this sheet material in the end of the described absorbent main body side of this flank sheet and/or leading section, this part of turning back engages with the outer surface of this sheet material via described reinforcement bond layer and/or the second reinforcement bond layer.

11. disposable diapers as claimed in claim 10, is characterized in that:

In above-mentioned two sheet materials of above-mentioned flank sheet, be only that the sheet material of the outer surface side being positioned at this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet or leading section, this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer or the second reinforcement bond layer.

12. disposable diapers as claimed in claim 10, is characterized in that:

In above-mentioned two sheet materials of above-mentioned flank sheet, be only that the sheet material of the outer surface side being positioned at this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and leading section, this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer and the second reinforcement bond layer.

13. disposable diapers as claimed in claim 5, is characterized in that:

In described two sheet materials of described flank sheet, the sheet material being positioned at the outer surface side of this flank sheet is turned back to the inner surface side of this sheet material in the end of the described absorbent main body side of this flank sheet and/or leading section, and this part of turning back engages with the inner surface of this sheet material via described reinforcement bond layer and/or the second reinforcement bond layer.

14. disposable diapers as claimed in claim 13, is characterized in that:

In above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the outer surface side of this flank sheet is turned back to the inner surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet or leading section, and this part of turning back engages with the inner surface of this sheet material via above-mentioned reinforcement bond layer or the second reinforcement bond layer.

15. disposable diapers as claimed in claim 13, is characterized in that:

In above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the outer surface side of this flank sheet is turned back to the inner surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and leading section, and this part of turning back engages with the inner surface of this sheet material via above-mentioned reinforcement bond layer and the second reinforcement bond layer.

16. disposable diapers as claimed in claim 5, is characterized in that:

In above-mentioned two sheet materials of above-mentioned flank sheet, the sheet material being positioned at the inner surface side of this flank sheet is turned back to the outer surface side of this sheet material in the end of the above-mentioned absorbent main body side of this flank sheet and leading section, and this part of turning back engages with the outer surface of this sheet material via above-mentioned reinforcement bond layer and the second reinforcement bond layer.

17. disposable diapers as claimed in claim 1, is characterized in that:

Described absorbent main body comprises: the face sheet being configured at the inner surface side of described absorber and the stereo enclosure formation sheet material engaged with the both sides of this face sheet,

Described stereo enclosure formation sheet material has a sheet material and is turned back and be stacked, two layers of structure part that its interlayer is engaged by thermal welding, these two layers structure part and described flank chip bonding.

18. disposable diapers as claimed in claim 1, is characterized in that:

In the both sides of the length direction of above-mentioned absorbent main body, along this length direction configuration stereo enclosure formation sheet material, the above-mentioned outer composite sheet that this stereo enclosure formation respectively in the both sides of the length direction of this absorbent main body, is fixed on face sheet via bond layer with sheet material, extend out from the lateral margin of this face sheet and the sheet material forming above-mentioned flank sheet.

19. disposable diapers as claimed in claim 1, is characterized in that:

Above-mentioned flank sheet has multiple middle bond layer between aforementioned body side bonds oxidant layer and above-mentioned front bond layer, and multiple elastomeric element is fixed between above-mentioned two sheet materials via the bonding agent forming this each bond layer.

20. disposable diapers as claimed in claim 19, is characterized in that:

At the zone line as the region between aforementioned body side bonds oxidant layer and above-mentioned front bond layer, be formed with multiple above-mentioned middle bond layer discontinuously, between main body side bond layer and the middle bond layer be adjacent, adjacent middle bond layer each other, between front bond layer and the middle bond layer be adjacent, be formed with the non-adhesive region not having placement of adhesives respectively.

21. disposable diapers as described in claim 19 or 20, is characterized in that:

The width of above-mentioned middle bond layer is all less than any one of aforementioned body side bonds oxidant layer and above-mentioned front bond layer.

22. disposable diapers as described in claim 19 or 20, is characterized in that:

Aforementioned body side bonds oxidant layer, above-mentioned front bond layer and above-mentioned middle bond layer all intersect with the multiple elastomeric element elastomeric elements extended on diaper width direction and X-direction, and extend on diaper length direction and Y-direction.

23. disposable diapers as claimed in claim 1 or 2, is characterized in that:

Above-mentioned connecting adhesive oxidant layer engages by the base end part of above-mentioned flank sheet and between the end of absorbent main body side with above-mentioned leakproof sheet material, and between the outer non-woven fabrics that the base end part of this flank sheet and the ora terminalis from this leakproof sheet material are extended out, this leakproof sheet material engages with between face sheet.

24. disposable diapers as claimed in claim 1 or 2, is characterized in that:

In the both sides of the length direction of above-mentioned absorbent main body, along this length direction configuration stereo enclosure formation sheet material, above-mentioned connecting adhesive oxidant layer engages by the base end part of above-mentioned flank sheet and between the end of absorbent main body side with above-mentioned leakproof sheet material, and between the outer non-woven fabrics that the base end part of this flank sheet and the ora terminalis from this leakproof sheet material are extended out, this leakproof sheet material engages with between stereo enclosure formation sheet material or face sheet.

25. disposable diapers as claimed in claim 1 or 2, is characterized in that:

In the both sides of the length direction of described absorbent main body, this length direction is provided with stereo enclosure formation sheet material,

Above-mentioned connecting adhesive oxidant layer engages by the base end part of above-mentioned flank sheet and between the end of absorbent main body side with above-mentioned leakproof sheet material, and between the outer non-woven fabrics that the base end part of this flank sheet and the ora terminalis from this leakproof sheet material are extended out, this leakproof sheet material engages with between stereo enclosure formation sheet material and face sheet.

26. disposable diapers as claimed in claim 1 or 2, is characterized in that:

The base end part of above-mentioned flank sheet and the end of absorbent main body side engage with the part that above-mentioned leakproof sheet material and above-mentioned outer non-woven fabrics are integrated via outer bond layer.

27., as the disposable diaper of claim 1 or 2, is characterized in that:

In the both sides of the length direction of above-mentioned absorbent main body, be configured with stereo enclosure formation sheet material along this length direction,

The sheet material forming the inner surface side of above-mentioned flank sheet is also engaged with stereo enclosure formation sheet material by face side bond layer, also separates on diaper width direction and X-direction between main body side bond layer with face side bond layer.

28. disposable diapers as claimed in claim 1 or 2, is characterized in that:

Above-mentioned stereo enclosure formation sheet material comprises: construct part with two layers of the outside of above-mentioned flank chip bonding; Part is constructed with two layers of the inner side engaged with face sheet via bond layer.

The manufacture method of 29. 1 kinds of disposable diapers, it is the manufacture method of the disposable diaper according to any one of claim 10 ~ 12, the feature of the manufacture method of this disposable diaper is, comprise the operation manufacturing described flank sheet through following operation, this operation comprises:

As be positioned at described flank sheet outer surface side sheet material blank strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of described reinforcement bond layer and described second reinforcement bond layer, the operation of being turned back in the both sides of this strip of sheet material in the mode covering these two bonding agents; On the strip of sheet material of the blank of the sheet material as the inner surface side or outer surface side that are positioned at this flank sheet, respectively zonally continuously coating for the formation of the operation of the bonding agent of described main body side adhesive linkage and described front bond layer; With after adhesive-applying, pass through two strip of sheet material of the blank of described two sheet materials as this flank sheet of formation to clip the operation of the state integration of elastomeric element between the two.

The manufacture method of 30. 1 kinds of disposable diapers, it is the manufacture method of the disposable diaper according to any one of claim 13 ~ 15, the feature of the manufacture method of this disposable diaper is, comprise the operation manufacturing described flank sheet through following operation, this operation comprises:

As be positioned at described flank sheet outer surface side sheet material blank strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of described reinforcement bond layer and described second reinforcement bond layer, the operation of being turned back in the both sides of this strip of sheet material in the mode of the entirety or a part that cover these two bonding agents; The part mode each other of turning back of this strip of sheet material is positioned at, using the bonding agent zonally operation of continuously coating on the strip of sheet material of the blank of the sheet material as the inner surface side or outer surface side that are positioned at described flank sheet respectively for the bonding agent forming described main body side bond layer and described front bond layer; With through by described two strip of sheet material after adhesive-applying to clip the operation of the state integration of elastomeric element between the two.

The manufacture method of 31. 1 kinds of disposable diapers, the continuous web of the Stretchable sheet of its structure using described flank sheet to be connected, disposable diaper according to any one of manufacturing claims 7,18,24,25,27,28, the feature of the manufacture method of this disposable diaper is:

Comprise the operation manufacturing described flank sheet through following operation: as be positioned at described flank sheet outer surface side sheet material blank strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of described reinforcement bond layer and described second reinforcement bond layer, the operation of being turned back in the both sides of this strip of sheet material in the mode covering these two bonding agents; On the strip of sheet material of the blank of the sheet material as the inner surface side or outer surface side that are positioned at this flank sheet, respectively zonally continuously coating for the formation of the operation of the bonding agent of described main body side adhesive linkage and described front bond layer; With after adhesive-applying, pass through using two strip of sheet material of the blank of described two sheet materials as this flank sheet of formation to clip the operation of the state integration of elastomeric element between the two,

The manufacture method of this disposable diaper also comprises following operation:

The continuous web of the pull stap of the bonding agent be coated with for the formation of the second connecting adhesive oxidant layer is cut off, is installed on the operation of the continuous web of the described Stretchable sheet of the structure that described flank sheet is connected discontinuously;

Pull stap is turned back, is temporarily fixed on the operation of the continuous web of described Stretchable sheet by set portion;

The bonding agent that main body for the formation of connecting adhesive oxidant layer connects is coated in continuously the operation in the continuous web of described Stretchable sheet;

Cut off the continuous web of described Stretchable sheet, be installed on the continuous web of the continuous web of outer composite sheet or described stereo enclosure formation sheet material integrated with the continuous web of face sheet after the operation of face sheet compound continuum;

By the continuous web of described outer composite sheet and described face sheet compound continuum to sandwich the operation of the mode integration of absorber between; With

The diaper continuum obtained is cut into the operation of single disposable diaper.

The manufacture method of 32. 1 kinds of disposable diapers, the continuous web of the Stretchable sheet of its structure using described flank sheet to be connected, disposable diaper according to any one of manufacturing claims 7,18,24,25,27,28, the feature of the manufacture method of this disposable diaper is:

Comprise the operation manufacturing described flank sheet through following operation: as be positioned at described flank sheet outer surface side sheet material blank strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of described reinforcement bond layer and described second reinforcement bond layer, the operation of being turned back in the both sides of this strip of sheet material in the mode of the entirety or a part that cover these two bonding agents; The part mode each other of turning back of this strip of sheet material is positioned at, using the bonding agent zonally operation of continuously coating on the strip of sheet material of the blank of the sheet material as the inner surface side or outer surface side that are positioned at described flank sheet respectively for the bonding agent forming described main body side bond layer and described front bond layer; With through by described two strip of sheet material after adhesive-applying to clip the operation of the state integration of elastomeric element between the two;

The manufacture method of 33. 1 kinds of disposable diapers, its disposable diaper described in manufacturing claims 16, the feature of the manufacture method of this disposable diaper is, comprise the operation manufacturing described flank sheet through following operation, this operation comprises:

As be positioned at above-mentioned flank sheet inner surface side sheet material blank the first strip of sheet material on, respectively zonally continuously coating for the formation of the bonding agent of aforementioned body side bonds oxidant layer and above-mentioned front bond layer, using this first strip of sheet material with as second strip of sheet material of blank of sheet material of outer surface side being positioned at above-mentioned flank sheet, converge and the operation of integration in the mode of the elastomeric element clipping elongation state between the two; With process in the both sides of the first strip of sheet material extended from the both side edges of the second strip of sheet material, zonally continuously coating is for the formation of the bonding agent of reinforcement bond layer and the second reinforcement bond layer, turns back these both sides by the operation be pressed on not relative with the first strip of sheet material face of the second strip of sheet material.

The manufacture method of 34. 1 kinds of disposable diapers, disposable diaper described in its manufacturing claims 1 or 2, the feature of the manufacture method of this disposable diaper is: the continuous web manufacturing the Stretchable sheet of the structure that flank sheet is connected, use this continuous web, disposable diaper is manufactured according to the step of following (1) ~ (9)

(1) continuous web of the pull stap of the bonding agent be coated with for the formation of the second connecting adhesive oxidant layer is cut off, be installed on the continuous web of the Stretchable sheet of the structure that flank sheet is connected discontinuously; (2) pull stap turned back and be temporarily fixed on Stretchable sheet; (3) bonding agent namely connected for main body for the formation of connecting adhesive oxidant layer is coated in Stretchable sheet continuously; (4) in other operation, by stereo enclosure and face sheet integration, face sheet compound continuum is formed; (5) in other operation, by leakproof sheet material and the integration of outer non-woven fabrics, outer composite sheet is formed; (6) Stretchable sheet is cut off discontinuously, be installed on face sheet compound continuum or outer composite sheet; (7) between face sheet with outer composite sheet, absorber is sandwiched and integrated; (8) product both sides and side foil extender are folded to the inside; (9) product is cut into.