CN104780878A

CN104780878A - Disposable diaper and method for producing same, and method for producing stretchable sheet

Info

Publication number: CN104780878A
Application number: CN201380059065.7A
Authority: CN
Inventors: 丸山浩志; 齐藤数马; 一万田俊明; 植田章之
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2012-11-12
Filing date: 2013-11-12
Publication date: 2015-07-15
Anticipated expiration: 2033-11-12
Also published as: WO2014073697A1; JP5685238B2; JP2014094214A; TW201424705A; TWI500416B; CN104780878B

Abstract

A diaper (1) is provided with an absorbent body (2) and side panels (3). The side panels (3) each have first and second panel sheets (31, 32), and an elastic member (33). At least the first panel sheet (31) has laminated structure portions (31A, 31B) in which the end on the absorbent body (2) side or the end on the distal end side of the side panel (3) folds back to the inside. Interlayer adhesive layers (31a, 31b) are formed in the laminated structure portions (31A, 31B) by applying an adhesive between the first panel sheet (31), which faces itself due to being folded back. The interlayer adhesive layers (31a, 31b) have extended adhesive layers (31a', 31b') that go beyond the laminated structure portions (31A, 31B), and extend toward the center of each side panel (3) in the width direction (X).

Description

The manufacture method of disposable diaper and its manufacture method and telescopic sheet

Technical field

The present invention relates to a kind of disposable diaper and its manufacture method.In addition, the present invention relates to the manufacture method of the telescopic sheet that this disposable diaper uses.

Background technology

All the time, known part in the absorbent main body comprising absorber, that be configured in the back side of wearer when wearing, is arranged on the lateral plate of retractility flexible on the width of this absorbent main body and the disposable diaper (with reference to patent documentation 1 and 2) of deploying type that formed.This kind of disposable diaper can manufacture lateral plate with the operation different from absorbent main body in advance, be attached to again in absorbent main body and manufactured, therefore, it is possible to suppress the use amount of the material being used for lateral plate, the garbage that produced by this material, excellent in environment and cost.As lateral plate, be used in comprise non-woven fabrics etc. 2 lateral plate sheet materials between engage fixing and structure that is that formed with elongation state configuration linear elastic bodies by bonding agent.

Prior art document

Patent documentation

Patent documentation 1: Japanese Patent Laid-Open 2008-295836 publication

Patent documentation 2: Japanese Patent Laid-Open 2012-115361 publication

Summary of the invention

But, when diaper worn by the pull stap etc. being arranged on the leading section of lateral plate when stretching, if carry out excessive stretching, then have the situation that the linear elastic bodies in lateral plate is peeled off from lateral plate sheet material.

The invention provides a kind of disposable diaper, it comprises: have absorber, be configured in the skin lateral plate of the inner surface side of this absorber and be configured in the absorbent main body of non-skin lateral plate of outer surface side of this absorber; With the lateral plate of the retractility of the sidepiece or both sides that are arranged on this absorbent main body.

Above-mentioned lateral plate is provided with pull stap in leading section, and this lateral plate has: the first lateral plate sheet material and these 2 lateral plate sheet materials of the second lateral plate sheet material; And be fixed on the elastomeric element between 2 these lateral plate sheet materials with the state of extending.

Above-mentioned elastomeric element, near the end of above-mentioned absorbent main body side or near it and the end of the side, leading section of above-mentioned lateral plate or its, is fixed on both the first lateral plate sheet material and the second lateral plate sheet material.

Disposable diaper has the feature of following (a), (b).

A () first is in lateral plate sheet material and the second lateral plate sheet material, turn back and the main body side lit-par-lit structure part formed to the inner side of above-mentioned lateral plate in the end that at least the first lateral plate sheet material has above-mentioned absorbent main body side,

In the lit-par-lit structure part of aforementioned body side, imposing bonding agent between the first lateral plate sheet material relative by turning back, forming main body side layers cementing oxidant layer,

Aforementioned body side layers cementing oxidant layer has and exceedes aforementioned body side lit-par-lit structure part and extend bond layer to the main body side that the width center side of above-mentioned lateral plate extends,

Above-mentioned elastomeric element utilizes aforementioned body side to extend bond layer and is positioned at the second lateral plate sheet material side and the main body side bond layer at the fixing above-mentioned end of absorbent main body side or the position near it, is fixed on both the first lateral plate sheet material and the second lateral plate sheet material.

B () first is in lateral plate sheet material and the second lateral plate sheet material, turn back and the front lit-par-lit structure part formed to the inner side of above-mentioned lateral plate in the end that at least the first lateral plate sheet material has the side, leading section of above-mentioned lateral plate,

In the lit-par-lit structure part of above-mentioned front, imposing bonding agent between the first lateral plate sheet material relative by turning back, forming front layers cementing oxidant layer,

Above-mentioned front layers cementing oxidant layer has and exceedes above-mentioned front lit-par-lit structure part and extend bond layer to the front that the width center side of above-mentioned lateral plate extends,

Above-mentioned elastomeric element utilizes above-mentioned front to extend bond layer and is positioned at the second lateral plate sheet material side and the fixing end of side, leading section of above-mentioned lateral plate or the front bond layer at the position near it, is fixed on both the first lateral plate sheet material and the second lateral plate sheet material.

In addition, the invention provides a kind of manufacture method of telescopic sheet, it comprises: the step of carrying a pair banded sheet; And between this banded sheet, the direction that throughput direction with this banded sheet intersects configures linear elastic bodies, in a sidepiece and the other side of this banded sheet of the throughput direction along this banded sheet, respectively by linear elastic bodies with elongation state be fixed on a pair this banded sheet both on step.

This manufacture method comprises the steps: the banded sheet in a pair above-mentioned banded sheet, along this throughput direction adhesive-applying at least one party in a sidepiece and the other side of this banded sheet of the throughput direction along this banded sheet,

The sidepiece being coated with above-mentioned bonding agent is turned back in the mode that this bonding agent becomes inner side and cambium layer laminated structure section divides,

Another banded sheet in above-mentioned banded sheet and between an above-mentioned banded sheet with above-mentioned lit-par-lit structure part, above-mentioned linear elastic bodies is fixed with elongation state by the direction that the throughput direction with these banded sheets intersects.

In this manufacture method, when forming above-mentioned lit-par-lit structure part, an above-mentioned banded sheet is turned back by the mode exposed with a part for above-mentioned bonding agent, utilizes this bonding agent exposed after turning back to fix above-mentioned linear elastic bodies.

And then the invention provides a kind of manufacture method of disposable diaper, this disposable diaper comprises: there is absorber, be configured in the skin lateral plate of the inner surface side of this absorber and be configured in the absorbent main body of non-skin lateral plate of outer surface side of this absorber; With the lateral plate of the retractility of the sidepiece or both sides that are arranged on this absorbent main body.

This manufacture method comprises:

By the continuum of the telescopic sheet that the manufacture method by above-mentioned telescopic sheet obtains, cut off at its width, obtain the step of the lateral plate of above-mentioned retractility; With

The component parts of the continuum of the lateral plate of above-mentioned retractility and above-mentioned absorbent main body is engaged, obtains the step of the continuum of above-mentioned disposable diaper.

Accompanying drawing explanation

Fig. 1 is the expansion top view observed from positive dough sheet side as the disposable diaper of one embodiment of the present invention.

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

Fig. 3 represents the lateral plate of the disposable diaper shown in Fig. 1 and the amplification plan view near it.

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

Fig. 5 is the sectional view of the another way representing the diaper shown in Fig. 4.

Fig. 6 is the axonometric chart of an example of the manufacture method of the lateral plate represented in the disposable diaper of the embodiment shown in Fig. 1.

Detailed description of the invention

The disposable diaper that the Performance Ratio prior art that the present invention relates to a kind of lateral plate increases.

Below, based on the preferred embodiment of the present invention, with reference to accompanying drawing, the present invention will be described.The disposable diaper 1 (hereinafter also referred to diaper 1) of the embodiment shown in Fig. 1 comprises: have absorber 23 and be configured in the absorbent main body 2 of skin lateral plate 21 of inner surface side of this absorber 23; With the lateral plate 3,3 of both sides being arranged on this absorbent main body 2.

Absorbent main body 2 has the shape of lengthwise as shown in Figure 1, having the veutro portion A of the veutro being positioned at wearer when wearing, being positioned at the drosal part B of the dorsal part of wearer and being positioned at the crotch C of crotch part.Absorbent main body 2 is rectangular shape as shown in Figure 1 under the state of plane expansion.Lateral plate 3,3 is arranged on the both sides of the absorbent main body 2 drosal part B in the mode that the edge, both sides respectively from absorbent main body 2 is given prominence to laterally.

The length direction of disposable diaper 1 is the Y-direction in figure, is equidirectional with the length direction of absorbent main body 2.The width of disposable diaper 1 is the X-direction in figure, is equidirectional with the width of absorbent main body 2.In the following description, also the direction corresponding with diaper length direction of the length direction of diaper or the component parts of this diaper is called Y-direction, the direction corresponding with diaper width direction of the width of diaper or the component parts of this diaper is called X-direction.In addition, the inner surface in the component parts of diaper or diaper is the face when wearing towards the skin side of wearer, and the outer surface in the component parts of diaper or diaper is the face when wearing towards the non-skin side of the side contrary with the skin of wearer.

As shown in Figure 1 and Figure 4, absorbent main body 2 have the inner surface forming absorbent main body 2 skin lateral plate 21, form the non-skin lateral plate 22 of outer surface of absorbent main body 2 and the absorber 23 of the liquid retainability between these two sheet materials 21,22.Skin lateral plate 21 has the positive dough sheet 21a of liquid permeability and is bonded on a pair stereo enclosure formation sheet 21b, 21b of its both sides.The positive dough sheet 21a of liquid permeability is configured in the central part of the width of absorbent main body 2 in the mode of the total length throughout absorbent main body 2.Stereo enclosure formation sheet 21b, 21b are configured in the both sides of the length direction of absorbent main body 2 respectively along its length.Stereo enclosure formation sheet 21b, 21b are engaged in positive dough sheet 21a via bond layer 68 and 69, form skin lateral plate 21 together with positive dough sheet 21a.

Bond layer 68 is formed in the roughly total length of absorbent main body 2.In contrast, bond layer 69 is arranged on veutro portion A and drosal part B, and be not arranged on crotch C.

Each stereo enclosure formation sheet 21b has the elastomeric element 25 of stereo enclosure formation near the ora terminalis of width (X-direction) inner side of absorbent main body 2 along this ora terminalis.When the wearing of diaper 1, by the contractility of elastomeric element 25, being positioned in crotch C is left from positive dough sheet 21a than the part of the Rack of above-mentioned bond layer 68 position in the inner part and erects, and forms stereo enclosure.

Non-skin lateral plate 22 comprises composite sheet, and this composite sheet has the leakage prevention sheet 22a of the difficult permeability (comprising water-repellancy) of liquid impermeability or liquid and is bonded on the outer non-woven fabrics 22b of outer surface side of this leakage prevention sheet 22a via outer bond layer 61.The plan view shape of outer non-woven fabrics 22b is identical with absorbent main body 2.Leakage prevention sheet 22a as shown in Figure 4, except the width of X-direction is slightly little, has same plan view shape with outer non-woven fabrics 22b.Owing to there is outer non-woven fabrics 22b, the skin sense of touch of the outer surface of diaper 1 is good.

Enclose in the part of place's configuration at the lower limb of the length direction both sides of absorbent main body 2, the elastomeric element 26 that leg creases is formed is formed by stereo enclosure and clamps by the double-layer structural part of sheet 21b and fix with elongation state.

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

As shown in Figure 3, the lateral plate 3 in diaper 1 is rectangular shape under the state of plane expansion.As shown in Figure 4, lateral plate 3 comprises: 2 lateral plate sheet materials i.e. the first lateral plate sheet material 31 and the second lateral plate sheet material 32 that non-woven fabrics is made; And to be fixed on the many elastomeric elements 33 between 2 lateral plate sheet materials 31,32 in diaper width direction (X-direction) upper state of extending.First lateral plate sheet material 31 is configured in the outer surface side of diaper 1.Second lateral plate sheet material 32 is configured in the inner surface side of diaper 1.Below conveniently, also the first lateral plate sheet material 31 and the second lateral plate sheet material are only called lateral plate sheet material 31 and lateral plate sheet material 32.

At the leading section 3a of lateral plate 3, be provided with the pull stap 4 for lateral plate 3 being fixed on other position (what be such as arranged on the outer surface of veutro portion A takes region 5).The leading section 3a of lateral plate 3 is ends of the side contrary with absorbent main body 2 side of lateral plate 3.On the other hand, the end (hereinafter also referred to base end part 3b) of the absorbent main body side of lateral plate 3 is engaged in absorbent main body 2.

Elastomeric element 33 is wire, and the width (X-direction) respectively along diaper 1 configures.In addition, the many elastomeric elements 33 in each lateral plate 3 separate roughly equal interval and configure on the length direction (Y-direction) of diaper.

As shown in Figure 3 and Figure 4, lateral plate 3 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 diaper length direction (Y-direction) upper extension.In these bond layers 35,36,37, many elastomeric elements 33 are at least fixed on the second lateral plate sheet material 32 via the bonding agent forming each bond layer.That is, bond layer 35,36,37 is at least positioned at the second lateral plate sheet material 32 side.

In lateral plate 3, do not clipping the position of elastomeric element 33,2 lateral plate sheet materials 31,32 directly engage via the bonding agent forming each bond layer each other.In addition, in figure 3, main body side bond layer 35, front bond layer 36 and multiple middle bond layer 37 by this figure left below diagonal line hatches line represent.

Main body side bond layer 35 is arranged on absorbent main body 2 side in the bearing of trend of lateral plate 3, by the end of absorbent main body 2 side of each elastomeric element 33 or the part near it, fixes from the inner surface P lateral outer Q side of lateral plate 3.Front bond layer 36 is arranged on the 3a side, leading section in the bearing of trend of lateral plate 3, by the end of 3a side, leading section of the lateral plate 3 of each elastomeric element 33 or the part near it, fixes from the inner surface P lateral outer Q side of lateral plate 3.

As shown in Figure 4, main body side bond layer 35 does not arrive the ora terminalis of absorbent main body 2 side in lateral plate 3, and lateral plate 3 has the main body side non-set out region for disengaged condition between lateral plate sheet material 31,32 at base end part 3b.In addition, front bond layer 36 does not arrive the ora terminalis of pull stap 4 side in lateral plate 3, and lateral plate 3 has the non-set out region, front for disengaged condition between lateral plate sheet material 31,32 at leading section 3a.The base end part 3b of the lateral plate 3 in present embodiment is included in the entirety or a part and main body side non-set out region that there is the part of main body side bond layer 35 between lateral plate sheet material 31,32.On the other hand, the leading section 3a of lateral plate 3 is included in the entirety or a part and non-set out region, front that there is the part of front bond layer 36 between lateral plate sheet material 31,32.

Region between the main body side bond layer 35 of middle bond layer 37 in the bearing of trend of lateral plate 3 and front bond layer 36 and zone line 30 are provided with multiple.The width of middle bond layer 37 is all less than any one in above-mentioned two bond layers 35,36, is formed to intermittent (interruption) multiple in zone line 30.Say it on the contrary, main body side bond layer 35 and front bond layer 36 are formed as wider than the width of middle bond layer 37.In the bearing of trend of lateral plate 3, between main body side bond layer 35 and the middle bond layer 37 be adjacent, adjacent middle bond layer 37 each other, between front bond layer 36 and the middle bond layer 37 be adjacent, be formed with the non-set out region 38 not having placement of adhesives respectively.In the diaper 1 of present embodiment, the bearing of trend of lateral plate 3 is consistent with diaper width direction.

Main body side bond layer 35, front bond layer 36 and middle bond layer 37 all intersect with many that extend in the X direction (being more preferably more than 3) elastomeric elements 33, in the upper extension of the length direction (Y-direction) of diaper 1.Main body side bond layer 35, front bond layer 36 and middle bond layer 37 all preferably intersect with the whole elastomeric elements 33 extended in the X direction, in the upper extension of the length direction (Y-direction) of diaper 1, more preferably formed in the upper total length between lower edge 3u, 3d of lateral plate 3.

Non-set out region 38 intersects with many that extend in the X direction (being more preferably more than 3) elastomeric elements 33 too and above extends at the length direction (Y-direction) of diaper 1.Non-set out region 38 also preferably intersects with the whole elastomeric elements 33 extended in the X direction and above extends at the length direction (Y-direction) of diaper 1, is more preferably formed in the upper total length between lower edge 3u, 3d of lateral plate 3.

In diaper 1, form the first lateral plate sheet material 31 being configured in outer surface Q side in 2 lateral plate sheet materials 31,32 of lateral plate 3, in absorbent main body 2 side, turn back and the main body side lit-par-lit structure part 31A of 2 layers formed to the inside in the end with absorbent main body 2 side of this first lateral plate sheet material 31.So-called " turning back to the inside " is the inner side of sensing lateral plate 3 and is turn back to the side that the first lateral plate sheet material 31 is relative with the second lateral plate sheet material 32.In main body side lit-par-lit structure part 31A, imposing bonding agent between the first lateral plate sheet material 31 relative by turning back, being formed with main body side layers cementing oxidant layer 31a.This bonding agent 31a is applied to the roughly whole region of the first lateral plate sheet material 31 relative by turning back.

In addition, the first lateral plate sheet material 31 is in the side, leading section of lateral plate 3, turns back and the front lit-par-lit structure part 31B of 2 layers formed to the inside in the end with the side, leading section of this first lateral plate sheet material 31.The meaning of so-called " turning back to the inside " is same as described above.In the lit-par-lit structure part 31B of front, imposing bonding agent between the first lateral plate sheet material 31 relative by turning back, being formed with front layers cementing oxidant layer 31b.This bonding agent 31b is applied to the roughly whole region of the first lateral plate sheet material 31 relative by turning back.

As mentioned above, in the first lateral plate sheet material 31, turning back all to the inside in the end of the end of absorbent main body 2 side and the side, leading section of lateral plate 3, and is formed with main body side lit-par-lit structure part 31A and front lit-par-lit structure part 31B.In contrast, being arranged in the second lateral plate sheet material 32 of the inner surface P side of lateral plate 3, is not all turned back in the end of the end of absorbent main body 2 side and the side, leading section of lateral plate 3.

In the main body side lit-par-lit structure part 31A of the first lateral plate sheet material 31, main body side layers cementing oxidant layer 31a exceedes main body side lit-par-lit structure part 31A, and the center side to the width X of lateral plate 3 extends out.Be formed with main body side by this extension and extend bond layer 31a'.Main body side extends bond layer 31a' and can't help the first lateral plate sheet material 31 and cover, and this main body side extends bond layer 31a' and exposes towards the inner surface P side of lateral plate 3.And the main body side exposed extends bond layer 31a' and is fixed from the outer surface Q lateral inner surface P side of lateral plate 3 in the end of absorbent main body 2 side of each elastomeric element 33 or the part near it.

In the front lit-par-lit structure part 31B of the first lateral plate sheet material 31, front layers cementing oxidant layer 31b exceedes front lit-par-lit structure part 31B, and the center side to the width X of lateral plate 3 extends out.Be formed with front by this extension and extend bond layer 31b'.Main body side extends bond layer 31b' and is not covered by the first lateral plate sheet material 31, and this main body side extends bond layer 31b' and exposes towards the inner surface P side of lateral plate 3.And the front of exposing extends bond layer 31b' and is fixed from the outer surface Q lateral inner surface P side of lateral plate 3 in the end of side, leading section of the lateral plate 3 of each elastomeric element 33 or the part near it.

In lateral plate 3, the forming position of forming position and main body side bond layer 35 that main body side extends bond layer 31a' is overlapping on the thickness direction of diaper 1.And lateral plate 3 is in its absorbent main body 2 side, and each elastomeric element 33 utilizes main body side to extend bond layer 31a' and fixes from the first lateral plate sheet material 31 side, and utilizes main body side bond layer 35 to fix from the second lateral plate sheet material 32 side.That is, each elastomeric element 33 is fixed on both the first and second lateral plate sheet materials 31,32.Similarly, in lateral plate 3, the forming position of forming position and front bond layer 36 that front extends bond layer 31b' is overlapping on the thickness direction of diaper 1.And lateral plate 3 is in the side, leading section of its lateral plate 3, and each elastomeric element 33 utilizes front to extend bond layer 31b' and fixes from the first lateral plate sheet material 31 side, and utilizes front bond layer 36 to fix from the second lateral plate sheet material 32 side.That is, each elastomeric element 33 is fixed on both the first and second lateral plate sheet materials 31,32.Like this, each elastomeric element 33 in both the first and second lateral plate sheet materials 31,32, and is also fixed on both the first and second lateral plate sheet materials 31,32 in the end of the side, leading section of lateral plate 3 or the part near it at the end of absorbent main body 2 side or the partial fixing near it.Thus, in the diaper 1 of present embodiment, each elastomeric element 33 be configured in lateral plate 3 reliably can be fixed on the first and second lateral plate sheet materials 31,32, even if therefore this lateral plate 3 of excessive tensile when wearing diaper 1, also not easily causes the stripping of elastomeric element 33.

Particularly as shown in Figure 4, main body side extends in bond layer 31a' and main body side bonding layer 35, the position consistency of the end of the center side on the width X of preferred lateral plate 3.Replace this structure, or except this structure, as shown in Figure 4, front extends in bond layer 31b' and front bonding layer 36, the position consistency of the end of the center side on the width X of preferred lateral plate 3.By adopting this structure, advantageous effects elastomeric element 33 being fixed on more reliably the first and second lateral plate sheet materials 31,32 can be reached.From making the more significant viewpoint of this effect, it is individually more than 3mm that the main body side on the width X of lateral plate 3 extends the width that the width of bond layer 31a' and front extend bond layer 31b', is particularly preferably more than 5mm.Higher limit is below 15mm, is particularly preferably below 10mm.Such as preferred above-mentioned width is individually more than 3mm below 15mm, is more preferably more than 5mm below 10mm.

In addition, as shown in Figure 4, main body side bonding layer 35 is formed across main body side extends bond layer 31a' and main body side lit-par-lit structure part 31A.Based on this, the fixing advantageous effects can carrying out lateral plate 3 and absorbent main body 2 more reliably can be obtained.In addition, as shown in Figure 4, front bonding layer 36 is formed across front extends bond layer 31b' and front lit-par-lit structure part 31B.Based on this, can obtain and can carry out the fixing advantageous effects that lateral plate 3 and hook wear (hooktape) 4 more reliably.

As shown in Figure 4, lateral plate 3 in the diaper 1 of present embodiment, absorbent main body 2 side in diaper width direction (X-direction), has the upper side engagement portion 66 engaged with the stereo enclosure formation sheet 21b of the part forming skin lateral plate 20 by the second lateral plate sheet material 32.Specifically, in upper side engagement portion 66, the face towards inner surface P side in 2 faces of the second lateral plate sheet material 32 engages with stereo enclosure formation sheet 21b via inner surface side bond layer 66a.And the forming position of the upper side engagement portion 66 of lateral plate 3 and the forming position of main body side bond layer 35 are overlapping on the thickness direction of diaper 1.When the forming position of upper side engagement portion 66 and the forming position of main body side bond layer 35 are overlapping on the thickness direction of diaper 1, the intensity near the root that can improve lateral plate 3 is favourable from this aspect.On the other hand, during intensity near the root fully obtaining lateral plate 3, also this structure can be replaced, as shown in Figure 5, the forming position of side engagement portion 66 and not overlapping on the thickness direction of diaper 1 mode of the forming position of main body side bond layer 35 in employing.

In addition, as shown in Figure 4, the lateral plate 3 in the diaper 1 of the first embodiment, absorbent main body 2 side in diaper width direction (X-direction), has the lower side engagement portion 62 the first lateral plate sheet material 31 and non-skin lateral plate 22 engaged.Specifically, in lower side engagement portion 62, the face of the surperficial toward the outside Q side in 2 faces of the first lateral plate sheet material 31 engages with the leakage prevention sheet 22a and/or outer non-woven fabrics 22b forming non-skin lateral plate 22 via outer surface side bonds oxidant layer 62a.And the forming position of the lower side engagement portion 62 of lateral plate 3 and the forming position of main body side bond layer 35 are overlapping on the thickness direction of diaper 1.And then, as shown in Figure 4, in lateral plate 3 in the diaper 1 of the first embodiment, the forming position of the lower side engagement portion 62 of lateral plate 3 and the forming position of main body side lit-par-lit structure part 31A be reinforced owing to there is main body side layers cementing oxidant layer 31a overlapping on the thickness direction of diaper 1.

Overlapping on the thickness direction of diaper 1 by the forming position of the forming position and main body side bond layer 35 that make the upper side engagement portion 66 of lateral plate 3, following advantageous effects can be obtained: even if when applying the power angle of the side edge part of the lower edge 3d of lateral plate 3 and absorbent main body 2 significantly opened, also not easily producing near the root of the lower edge 3d of lateral plate 3 and tearing.Overlapping on the thickness direction of diaper 1 by the forming position of the forming position and main body side bond layer 35 that make the lower side engagement portion 62 of lateral plate 3, this prevents the effect of tearing more remarkable.And then, overlapping on the thickness direction of diaper 1 by the forming position of the forming position and main body side lit-par-lit structure part 31A that make lower side engagement portion 62, also can obtain the advantageous effects not easily producing and tear.

The above-mentioned effect preventing tearing is by having following structure and more remarkable: the main body side lit-par-lit structure part 31A strengthened owing to there is main body side layers cementing oxidant layer 31a, engage with the second lateral plate sheet material 32 via main body side bond layer 35, and the part being bonded with main body side bond layer 35 of this second lateral plate sheet material 32 is engaged by upper side engagement portion 66 with stereo enclosure formation sheet 21b (skin lateral plate 21).From the view point of further improving the above-mentioned effect preventing tearing, advantageously, the forming position of the forming position of upper side engagement portion 66, the forming position of main body side bond layer 35 and main body side layers cementing oxidant layer 31a is overlapping on the thickness direction of diaper 1.

As shown in Figure 4, lateral plate 3 in the diaper 1 of present embodiment comprises the front lit-par-lit structure part 31B with front layers cementing oxidant layer 31a, and the leading section 3a strengthened by this front lit-par-lit structure part 31B utilizes connecting adhesive oxidant layer 65 to engage with pull stap 4.Pull stap 4 comprises band base material 42 and is engaged in this band base material 42 and the hook face component (sunny side parts) of the mechanicalness planar fastener of formation engaging portion 41.And only overlapping with the leading section 3a of lateral plate 3 by the part that forms of band base material 42 in pull stap 4 also engages.In the present embodiment, the leading section 3a of lateral plate 3 engages via connecting adhesive oxidant layer 65 with between band base material 42.As the method hook face component of mechanicalness planar fastener being fixed on band base material 42, use thermal welding or utilize the arbitrary joint method of the joint etc. of bonding agent.In addition, at the outer surface of the veutro portion A of diaper 1, be provided with make the engaging portion 41 of pull stap 4 fixing take region 5 (with reference to Fig. 2).

In addition, the zone line 30 of the lateral plate 3 in the disposable diaper 1 of present embodiment, middle bond layer 37 is formed in the mode arranging non-set out region 38 between adjacent bond layer, under the naturalness of diaper 1, by the contraction of elastomeric element 33,2 sheet materials 31,32 in non-set out region 38 protrude to the direction left from each elastomeric element 33, are formed on the two sides of lateral plate 3 with many pleats (not shown) extended across the mode of many elastomeric elements 33.And this pleat also can not disappear completely under the wearing effect of diaper.Therefore, in lateral plate 3 due to bond layer 36 ~ 37 hardening part, especially due to middle bond layer 37, hardening part not easily contacts the skin of wearer, thus not easily brings sense of discomfort.

The application pattern forming the bonding agent of above-mentioned each bond layer preferably uses spray gun, coating rifle etc. to carry out planar coating as adhesive applicating machine, also pearl rifle, spiral spray gun, Ω shape spray gun, transfer roll etc. can be used as adhesive applicating machine, carry out the pattern coating of linearity, helical form, Ω shape, point-like etc.

From the view point of improve lateral plate 3 flexibility, guarantee retractility, the width (size of Y-direction), the diameter that are configured at the elastomeric element 33 of lateral plate 3 are preferably more than 0.1mm, and be preferably below 2mm, be more preferably below 1mm, more specifically, be preferably more than 0.1mm below 2mm, be more preferably more than 0.1mm below 1mm.In addition, the radical being configured at the elastomeric element 33 of lateral plate 3 is preferably more than 4, is more preferably more than 6, and be preferably less than 30, be more preferably less than 20, more specifically, be preferably the degree of more than 4 less than 30, be more preferably more than 6 less than 20.

The size of each several part in this description measures in following state: elastomeric element such as elastomeric element 33 grade is extended, and lateral plate or diaper is extended to become design size (measure-alike with when being extended to plane under the state after the impact of elastomeric element all being got rid of).

Then the constituent material of diaper 1 is described.Each constituent material can use the various materials that in prior art, the absorbent commodity such as disposable diaper, sanitary napkin uses with no particular limitation.Such as form lateral plate 3 the first and second lateral plate sheet materials 31,32, the band base material 42 of pull stap 4, non-woven fabrics, fabric, film or their laminated sheet etc. can be used.

As positive dough sheet 21a, such as, hydrophilic can be used and the non-woven fabrics of liquid permeability or three-dimensional apertured film etc.As the outer composite sheet forming non-skin lateral plate 22, leakage prevention sheet 22a can be used to comprise the resin molding of liquid impermeability or the difficult permeability (comprising water-repellancy) of liquid, outer non-woven fabrics 22b comprises the structure of the non-woven fabrics (such as, hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spun-laced nonwoven fabric, tailor's cushion non-woven fabrics etc.) utilizing various method for making to make.Outer non-woven fabrics 22b also can be multi-ply construction.Non-skin lateral plate 22 can not have outer non-woven fabrics 22b, also can only be made up of the resin molding of liquid impermeability or the difficult permeability (comprising water-repellancy) of liquid.As absorber 23, can use the aggregation of the fibers such as paper pulp fiber (also can be non-woven fabrics) or the absorbent core 23a that makes it keep the granule of water absorbent polymer and formed, with the structure that the clad sheet 23b of the thin paper or non-woven fabrics that comprise water penetration is coated etc.As the stereo enclosure formation sheet 21b 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.From viewpoints such as the simplification of manufacturing cost and manufacturing step, the many elastomeric elements 33 being configured at a lateral plate are preferably one species and configure with same percentage elongation.

With the bonding agent of secures resilient member 33 for representative, as the preferred material of the bonding agent for engaging between each parts, amorphous polyolefin can be enumerated, vinyl-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 thermoplastic polymers such as styrene-ethylene/propylene-styrene block copolymer (SEPS) and their mixture etc.Bonding agent is preferably heat molten type.

There is no particular restriction for the disposable diaper 1 of present embodiment or the manufacture method of lateral plate 3, and arbitrary method can be utilized to manufacture.Below, with reference to Fig. 6, the preferred example of the manufacture method of the lateral plate 3 in the disposable diaper 1 of present embodiment is described.

The manufacturing installation 7 being used as the telescopic sheet of lateral plate 3 is represented in Fig. 6.Device 7 shown in this figure have the long tectosome of a pair elastomeric element conveying 71,71, elastomeric element winding mechanism 72 and by integrated mechanism 73 integrated with sheet material 31', 32' of a pair band shape for elastomeric element 33.Banded sheet 31', 32' are the blank of lateral plate sheet material 31,32 respectively.A pair elastomeric element conveying is left mutually the interval of regulation with long tectosome 71,71 and configures abreast.Elastomeric element winding mechanism 72 at the elastomeric element 33 of a pair elastomeric element conveying with winding wire-like on long tectosome 71,71, and make this elastomeric element 33 towards becoming the direction of carrying the length direction with long tectosome 71 (in figure R direction) to intersect with elastomeric element.Integrated mechanism 73 is carried being wound on a pair elastomeric element by elastomeric element winding mechanism 72 with long tectosome 71,71 and carries by a pair elastomeric element the elastomeric element 33 transported with long tectosome 71,71, and what be clamped in a pair band shape carries out integration between sheet material 31', 32'.As the long tectosome 71 of elastomeric element conveying, as shown in Figure 6, preferred use endless belt, this endless belt have movement in the directionr direct motion part and with R side in the opposite direction on the loopback part of movement, only direct motion part engages with elastomeric element 33, carries this elastomeric element 33 in the directionr.Endless belt is set up in belt pulley, gear, makes above-mentioned belt pulley or gear rotary actuation.As the conveying of each elastomeric element with long tectosome 71, also only can use an endless belt as above, but preferably as shown in Figure 6, as the conveying of each elastomeric element with long tectosome 71, use the structure being configured with above-mentioned endless belt up and down two-layerly.By arranging speed difference at upper and lower interband, can just be wound in the conveying of a pair elastomeric element and to overlook with time on long tectosome 71,71 direction of the elastomeric element 33 into jagged wire, be modified to the state of multiple elastomeric element 33 parallel shape orientation spaced apart in the directionr, with this state be fixed on a pair banded between sheet 31', 32'.As elastomeric element conveying with long tectosome 71, also can be on side face helical form be provided with groove or raised line round clava and around the structure of central axis rotary actuation.

In this manufacture method, as shown in Figure 6, utilize known adhesive applicating machine 75, to the banded sheet 31' of the blank as the first lateral plate sheet material 31, respectively zonally continuously coating for the formation of bonding agent 63' and 64' of layers cementing oxidant layer 31a, 31b.Utilize this bonding agent 63' and 64', form the position corresponding with main body side layers cementing oxidant layer 31a and front layers cementing oxidant layer 31b.Coating part is a sidepiece along this banded sheet 31' of the throughput direction R of banded sheet 31' and the other side.Then, the mode becoming inner side with this two bonding agent 63' and 64', utilizes folding guide (Sailor guide) (not shown) etc. to be turned back to the side, face relative with banded sheet 32' the both sides of this banded sheet 31'.Turned back by this, form the position corresponding with aforementioned body side lit-par-lit structure part 31A and front lit-par-lit structure part 31B.When forming these lit-par-lit structure parts, expose with a part of bonding agent 63' and 64' and the mode that forms exposed portion 63 " and 64 " is turned back above-mentioned banded sheet 31'.Exposed portion 63 " and 64 " formation that a part of this bonding agent 63' and 64' is exposed extends bond layer 31a', 31b'.

Then, utilize adhesive applicating machine 76, to the banded sheet 32' of the blank as the second lateral plate sheet material 32 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.The coating position of the bonding agent 34 in banded sheet 32' is the width of the banded sheet 31' after basis is turned back and suitably determines.Then, two banded sheet 31', 32' being collaborated in the mode of the elastomeric element 33 of the Holder extensions state between the two, utilizing a pair nip rolls 74 as integrated mechanism 73 to make its integration to them from pressurizeing up and down.Thus, the sidepiece of this banded sheet 31', the 32' of the throughput direction R along banded sheet 31', 32' and the other side each in, elastomeric element 33 is fixed on both of a pair this banded sheet 31', 32'.Specifically, utilize and be coated on the bonding agent of the formation main body side bond layer 35 of banded sheet 32' and the exposed portion 63 at banded sheet 31' " in the bonding agent that exposes, the one end in elastomeric element 33 is fixed on both of banded sheet 31', 32'.And then, utilize and be coated in the bonding agent of the formation front bond layer 36 of banded sheet 32' and the exposed portion 64 at banded sheet 31' " in the bonding agent that exposes, the other end in elastomeric element 33 is fixed on both of banded sheet 31', 32'.

Thereafter, utilization has the shut-off mechanisms 77 such as the sickle of cutting edge and is cut off by the elastomeric element 33 extended out to side, obtains the continuum 3' of telescopic sheet thus.The continuum 3' of the telescopic sheet obtained is cut into the length of single lateral plate 3 successively by arbitrary shut-off mechanism (not shown).In this way can the lateral plate 3 of continuous seepage present embodiment expeditiously.

When manufacturing the disposable diaper of present embodiment, except using above-mentioned lateral plate 3 or this lateral plate 3 except the continuum 3' of the telescopic sheet of the upper continuous print structure of length direction (Y-direction), also disposable diaper can be manufactured according to method commonly known in the art.

Such as, use lateral plate 3 to be connected and the continuum 3' of the telescopic sheet of formation, the preferred manufacture method manufacturing the disposable diaper 1 of the first embodiment has following step (I) ~ (VI).

(I) cut off by the continuum be coated with for the formation of the pull stap 4 of the bonding agent of connecting adhesive oxidant layer 65, intermittent is in the step of continuum 3' being arranged on telescopic sheet.

In this step, the pull stap 4 after cut-out is fixed on the continuum 3' of telescopic sheet via above-mentioned bonding agent.The continuum of pull stap 4 preferably before cutting, is fixed with the continuum of engaging portion 41 along its length.

(II) pull stap 4 is turned back, be temporarily fixed on the step of the continuum 3' of this telescopic sheet via engaging portion 41.

In this step, the part that the lateral margin of the continuum 3' from telescopic sheet in pull stap 4 extends is turned back, temporarily fixes via engaging portion 41.

(III) bonding agent for the formation of outer surface side bonds oxidant layer 62a is coated in continuously the step of the continuum 3' of telescopic sheet.

(IV) the continuum 3' of telescopic sheet is cut off, and be arranged on the step of the continuum of skin lateral plate 21 or non-skin lateral plate 22.

The continuum of skin lateral plate 21 obtains integrated with the continuum of positive dough sheet 21a for the continuum of stereo enclosure formation sheet 21b.The continuum of stereo enclosure formation sheet 21b and the continuum of positive dough sheet 21a are via bond layer 68,69 integrated.In this step, the lateral plate 3 of the band pull stap obtained by the continuum 3' cutting off telescopic sheet is installed on the continuum of skin lateral plate 21 or non-skin lateral plate 22.Install via outer surface side bonds oxidant layer 62a when installing this lateral plate 3 to the continuum of non-skin lateral plate 22, install via inner surface side bond layer 66a when installing this lateral plate 3 to the continuum of skin lateral plate.

(V) by the continuum of the continuum of skin lateral plate 21 and non-skin lateral plate 22 with the integrated step of the mode sandwiching absorber 23 between the two.

In the step of above-mentioned (IV), when the lateral plate 3 of band pull stap is arranged on the continuum of non-skin lateral plate 22, the one side of the continuum of non-skin lateral plate 22 configures absorber 23, with the continuum of the overlapping skin lateral plate 21 of the mode covering the face of the opposition side of absorber 23.And, utilize the arbitrary method such as bonding agent, heat seal, ultrasonic sealing to be engaged with between the continuum of skin lateral plate 21 by the continuum of non-skin lateral plate 22.On the other hand, in the step of above-mentioned (IV), when the lateral plate 3 of band pull stap is arranged on the continuum of skin lateral plate 21, the one side of this continuum configures absorber 23, and with the continuum of the overlapping non-skin lateral plate 22 of the mode in the face of the opposition side covering this absorber.And, utilize the arbitrary method such as bonding agent, heat seal, ultrasound sealing to be engaged with between the continuum of skin lateral plate 21 by the continuum of non-skin lateral plate 22.

(VI) obtained diaper continuum is cut to the step of single disposable diaper.

Above, preferred embodiment describe the present invention based on of the present invention, but the present invention is not restricted to above-mentioned embodiment.Such as in the above-described embodiment, main body side layers cementing oxidant layer 31a and front layers cementing oxidant layer 31b all has and extends bond layer 31a' and 31b', but replace this structure, extend bond layer also can only in main body side layers cementing oxidant layer 31a and front layers cementing oxidant layer 31b any one formed.Now, in the manufacture method of the telescopic sheet shown in Fig. 6, the position that bonding agent is exposed is only any one in the sidepiece of banded sheet 31' and both sides.

In addition, in the above-described embodiment, in first lateral plate sheet material 31, turn back to the inside and form main body side lit-par-lit structure part 31A and front lit-par-lit structure part 31B in the end of absorbent main body side and both ends of side, leading section, but replace this structure, lit-par-lit structure part also only can form any one in main body side lit-par-lit structure part 31A and front lit-par-lit structure part 31B.Now, in the manufacture method of the telescopic sheet shown in Fig. 6, the turning back of banded sheet 31' is only any one in a sidepiece and many sidepieces.

In addition, in the above-described embodiment, cambium layer laminated structure section in 2 lateral plate sheet materials 31,32 is divided or forms the first lateral plate sheet material extending bond layer and be configured in outer surface side, but replace this structure, also the lateral plate sheet material (lateral plate sheet material 32) being positioned at inner surface side can be used as the first lateral plate sheet material, and cambium layer laminated structure section divides or is formed and extends bond layer wherein.And then, also can divide at both the first and second lateral plate sheet materials 31,32 cambium layer laminated structure section or be formed and extend bond layer.When both the first and second lateral plate sheet materials 31,32 cambium layer laminated structure section divides and extends bond layer, extend bond layer (main body side extends bond layer 31a' or front extends bond layer 31b') and also double as aforementioned body side layers cementing oxidant layer 31a or front layers cementing oxidant layer 31b.

In addition, in the above-described embodiment, the elastomeric element 26 that lower limb gauffer is formed forms the 2 layers of structure part clamping with sheet 21b by stereo enclosure, but replaces this structure, also can be clamped between stereo enclosure formation sheet 21b and non-skin lateral plate 22.

About above-mentioned embodiment, the present invention and then disclose the manufacture method of following disposable diaper and telescopic sheet.

< 1 > disposable diaper, it comprises: have absorber, be configured in the skin lateral plate of the inner surface side of this absorber and be configured in the absorbent main body of non-skin lateral plate of outer surface side of this absorber; With the lateral plate of the retractility of the sidepiece or both sides that are arranged on this absorbent main body, in this disposable diaper,

Above-mentioned lateral plate is provided with pull stap in leading section, and this lateral plate has: the first lateral plate sheet material and these 2 lateral plate sheet materials of the second lateral plate sheet material; And be fixed on the elastomeric element between 2 these lateral plate sheet materials with the state of extending,

Above-mentioned elastomeric element, near the end of above-mentioned absorbent main body side or near it and the end of the side, leading section of above-mentioned lateral plate or its, is fixed on both the first lateral plate sheet material and the second lateral plate sheet material,

Above-mentioned elastomeric element utilizes aforementioned body side to extend bond layer and is positioned at the second lateral plate sheet material side and the main body side bond layer at the fixing above-mentioned end of absorbent main body side or the position near it, be fixed on both the first lateral plate sheet material and the second lateral plate sheet material, or

< 2 > is as the disposable diaper of above-mentioned < 1 >, wherein, aforementioned body side extends in bond layer and main body side bonding layer, the position consistency of the end of the width center side of above-mentioned lateral plate.

< 3 > is as the disposable diaper of above-mentioned < 1 >, wherein, above-mentioned front extends in bond layer and above-mentioned front bonding layer, the position consistency of the end of the width center side of above-mentioned lateral plate.

The disposable diaper of < 4 > any one of above-mentioned < 1 > to < 3 >, wherein, the first lateral plate sheet material has: the main body side lit-par-lit structure part turned back to the inside and formed in the end of above-mentioned absorbent main body side; Turn back to the inside with the end of the side, leading section of above-mentioned lateral plate and the front lit-par-lit structure part formed,

Above-mentioned layers cementing oxidant layer has and exceedes aforementioned body side lit-par-lit structure part and extend bond layer to the main body side that the width center side of above-mentioned lateral plate extends, and above-mentioned layers cementing oxidant layer has and exceedes above-mentioned front lit-par-lit structure part and extend bond layer to the front that the width center side of above-mentioned lateral plate extends

Above-mentioned elastomeric element utilizes aforementioned body side to extend bond layer and is positioned at the aforementioned body side bonds oxidant layer of the second lateral plate sheet material side, be fixed on both the first lateral plate sheet material and the second lateral plate sheet material, and utilize above-mentioned front to extend bond layer and be positioned at the above-mentioned front bond layer of the second lateral plate sheet material side, being fixed on both the first lateral plate sheet material and the second lateral plate sheet material.

The disposable diaper of < 5 > any one of above-mentioned < 1 > to < 4 >, wherein, the first lateral plate sheet material in the first lateral plate sheet material and the second lateral plate sheet material is configured in outer surface side.

The disposable diaper of < 6 > any one of above-mentioned < 1 > to < 5 >, wherein, above-mentioned skin lateral plate has the positive dough sheet of liquid permeability and is bonded on a pair stereo enclosure formation sheet of both sides of positive dough sheet, and this stereo enclosure formation sheet is engaged in above-mentioned positive dough sheet via bond layer.

< 7 > is as the disposable diaper of above-mentioned < 6 >, wherein, above-mentioned stereo enclosure formation sheet has the elastomeric element of stereo enclosure formation near the ora terminalis of width (X-direction) inner side of absorbent main body along this ora terminalis, when the wearing of diaper 1, by the contractility of this elastomeric element, the part of the Rack in crotch is left from positive dough sheet and erects, and forms stereo enclosure.

The disposable diaper of < 8 > any one of above-mentioned < 1 > to < 7 >, wherein, aforementioned body side bonds oxidant layer in the bearing of trend of above-mentioned lateral plate and the region between the bond layer of above-mentioned front and zone line, be provided with multiple middle bond layer.

< 9 > is as the disposable diaper of above-mentioned < 8 >, wherein, aforementioned body side bonds oxidant layer, above-mentioned front bond layer and above-mentioned middle bond layer are at least positioned at the second lateral plate sheet material side.

The disposable diaper of < 10 > any one of above-mentioned < 1 > to < 9 >, wherein, above-mentioned lateral plate is not arranging the position of above-mentioned elastomeric element, and 2 above-mentioned lateral plate sheet materials directly engage via the bonding agent forming above-mentioned each bond layer each other.

The disposable diaper of < 11 > any one of above-mentioned < 1 > to < 10 >, wherein, aforementioned body side bonds oxidant layer does not arrive the ora terminalis of the above-mentioned absorbent main body side in above-mentioned lateral plate, and above-mentioned lateral plate has the main body side non-set out region for disengaged condition between above-mentioned 2 lateral plate sheet materials at its base end part.

The disposable diaper of < 12 > any one of above-mentioned < 1 > to < 11 >, wherein, above-mentioned front bond layer does not arrive the ora terminalis of the above-mentioned pull stap side in above-mentioned lateral plate, and above-mentioned lateral plate has the non-set out region, front for disengaged condition between above-mentioned 2 lateral plate sheet materials in its leading section.

The disposable diaper of < 13 > any one of above-mentioned < 8 > to < 12 >, wherein, aforementioned body side bonds oxidant layer, above-mentioned front bond layer and above-mentioned middle bond layer all with at the upper many elastomeric elements extended of the width (X-direction) of disposable diaper intersect, and in diaper length direction (Y-direction) upper extension.

The disposable diaper of < 14 > any one of above-mentioned < 8 > to < 13 >, wherein, aforementioned body side bonds oxidant layer, above-mentioned front bond layer and above-mentioned middle bond layer all with at the upper whole elastomeric elements extended of the width (X-direction) of disposable diaper intersect, and in diaper length direction (Y-direction) upper extension, throughout the total length intermarginal up and down of above-mentioned lateral plate.

The disposable diaper of < 15 > any one of above-mentioned < 1 > to < 14 >, wherein, in above-mentioned lateral plate, the forming position of forming position and aforementioned body side bonds oxidant layer that aforementioned body side extends bond layer is overlapping on the thickness direction of diaper.

The disposable diaper of < 16 > any one of above-mentioned < 1 > to < 15 >, wherein, in above-mentioned lateral plate, the forming position of forming position and above-mentioned front bond layer that above-mentioned front extends bond layer is overlapping on the thickness direction of diaper.

The disposable diaper of < 17 > any one of above-mentioned < 1 > to < 16 >, wherein, it is separately more than 3mm or more than 5mm that aforementioned body side on the width (X-direction) of the disposable diaper of above-mentioned lateral plate extends the width that the width of bond layer and above-mentioned front extend bond layer, and be below 15mm or below 10mm, in addition, be more preferably more than 3mm below 15mm, or more than 5mm below 10mm.

The disposable diaper of < 18 > any one of above-mentioned < 6 > to < 17 >, wherein, the absorbent main body side of lateral plate on the width (X-direction) of disposable diaper, has (above-mentioned second) the lateral plate sheet material and above-mentioned stereo enclosure formation chip bonding that are configured in inner surface side and the upper side engagement portion formed.

< 19 > is as the disposable diaper of above-mentioned < 18 >, wherein, be configured in the face towards inner surface side in 2 faces of (above-mentioned second) lateral plate sheet material of inner surface side, via upper side engagement portion and above-mentioned stereo enclosure formation chip bonding.

< 20 > is as the disposable diaper of above-mentioned < 18 > or < 19 >, wherein, the forming position of the above-mentioned upper side engagement portion of above-mentioned lateral plate and the forming position of aforementioned body side bonds oxidant layer are overlapping on the thickness direction of diaper.

The disposable diaper of < 21 > any one of above-mentioned < 1 > to < 20 >, wherein, aforementioned body side bonding layer is stepped up and is stated main body side and extend bond layer and aforementioned body side lit-par-lit structure part and formed.

The disposable diaper of < 22 > any one of above-mentioned < 1 > to < 21 >, wherein, above-mentioned front bonding layer is stepped up and is stated front and extend bond layer and above-mentioned front lit-par-lit structure part and formed.

The disposable diaper of < 23 > any one of above-mentioned < 1 > to < 22 >, wherein, above-mentioned lateral plate has the lower side engagement portion that the lateral plate sheet material being configured in outer surface side formed in above-mentioned 2 lateral plate sheet materials of this lateral plate and above-mentioned non-skin lateral plate are engaged and formed in above-mentioned absorbent main body side, above-mentioned lower side engagement portion and aforementioned body side bonds oxidant layer are overlapping on the thickness direction of diaper.

The disposable diaper of < 24 > any one of above-mentioned < 1 > to < 23 >, wherein, the above-mentioned first lateral plate sheet material in above-mentioned first lateral plate sheet material and the second lateral plate sheet material is configured in inner surface side.

The disposable diaper of < 25 > any one of above-mentioned < 1 > to < 23 >, wherein, divide at both above-mentioned first lateral plate sheet material and the second lateral plate sheet material cambium layer laminated structure section and extend bond layer.

The disposable diaper of < 26 > any one of above-mentioned < 1 > to < 25 >, wherein, above-mentioned absorbent main body has the veutro portion of the veutro being positioned at wearer when wearing, the drosal part being positioned at the dorsal part of wearer and the crotch be positioned at across crotch, and lateral plate is arranged on the both sides of the absorbent main body drosal part in the mode that the edge, both sides respectively from absorbent main body is given prominence to laterally.

The disposable diaper of < 27 > any one of above-mentioned < 1 > to < 26 >, wherein, above-mentioned non-skin lateral plate comprises composite sheet, and this composite sheet has the leakage prevention sheet of the difficult permeability (containing water-repellancy) of liquid impermeability or liquid and is engaged in the outer non-woven fabrics of outer surface side of this leakage prevention sheet via outer bond layer.

The disposable diaper of < 28 > any one of above-mentioned < 1 > to < 27 >, wherein, above-mentioned elastomeric element is wire, width (X-direction) respectively along diaper is configured with many, the length direction (Y-direction) of diaper arranges roughly equal interval and configures.

The disposable diaper of < 29 > any one of above-mentioned < 1 > to < 28 >, wherein, the elastomeric element being configured in above-mentioned lateral plate is many, it is more than 4 or more than 6, and be less than 30 or less than 20, in addition, be more than 4 less than 30, or more than 6 less than 20.

The disposable diaper of < 30 > any one of above-mentioned < 1 > to < 30 >, wherein, as the lateral plate sheet material forming above-mentioned lateral plate, use non-woven fabrics, fabric, film or their laminated sheet.

The manufacture method of a < 31 > telescopic sheet, it comprises: the step of carrying a pair banded sheet; And between this banded sheet, the direction that throughput direction with this banded sheet intersects configures linear elastic bodies, in a sidepiece and the other side of this banded sheet of the throughput direction along this banded sheet, respectively by linear elastic bodies with elongation state be fixed on a pair this banded sheet both on step, the manufacture method of this telescopic sheet comprises the steps:

To the banded sheet in a pair above-mentioned banded sheet, along this throughput direction adhesive-applying at least one party in a sidepiece and the other side of this banded sheet of the throughput direction along this banded sheet,

Another banded sheet in above-mentioned banded sheet and between an above-mentioned banded sheet with above-mentioned lit-par-lit structure part, above-mentioned linear elastic bodies is fixed with elongation state by the direction that the throughput direction with these banded sheets intersects,

When forming above-mentioned lit-par-lit structure part, an above-mentioned banded sheet is turned back by the mode exposed with a part for above-mentioned bonding agent, utilizes this bonding agent exposed after turning back to fix above-mentioned linear elastic bodies.

< 32 > is as the manufacture method of the telescopic sheet of above-mentioned < 31 >, and it comprises the steps: another the banded sheet adhesive-applying in a pair above-mentioned banded sheet.

< 33 > is as the manufacture method of the telescopic sheet of above-mentioned < 31 > or < 32 >, wherein, to the banded sheet in a pair above-mentioned banded sheet, in the both sides of this banded sheet of the throughput direction along this banded sheet, along this throughput direction adhesive applicating machine difference zonally above-mentioned bonding agent of continuously coating, form above-mentioned lit-par-lit structure part by above-mentioned turning back.

The manufacture method of the telescopic sheet of < 34 > any one of above-mentioned < 31 > to < 33 >, wherein, to another the banded sheet in a pair above-mentioned banded sheet, in the both sides of this banded sheet of the throughput direction along this banded sheet, along this throughput direction adhesive applicating machine difference zonally above-mentioned bonding agent of continuously coating, and the zone line between these both ends, along this throughput direction adhesive applicating machine continuously coating many above-mentioned bonding agents.

The manufacture method of a < 35 > disposable diaper, this disposable diaper comprises: have absorber, be configured in the skin lateral plate of the inner surface side of this absorber and be configured in the absorbent main body of non-skin lateral plate of outer surface side of this absorber; With the lateral plate of the retractility of the sidepiece or both sides that are arranged on this absorbent main body, the feature of the manufacture method of this disposable diaper is, comprising:

By the continuum of the telescopic sheet that the manufacture method by the telescopic sheet any one of claim 10 ~ 13 obtains, cut off at its width, obtain the step of the lateral plate of above-mentioned retractility; With

< 36 > is as the manufacture method of the disposable diaper of above-mentioned < 35 >, wherein, the continuum being coated with the pull stap of bonding agent is cut off, the pull stap obtained by cut-out is arranged at intervals the end in the width direction in the continuum of above-mentioned telescopic sheet, then the continuum of above-mentioned telescopic sheet is cut off.

< 37 > is as the manufacture method of the disposable diaper of above-mentioned < 36 >, wherein, to the continuum of above-mentioned pull stap, fix the continuum of the engaging portion of this pull stap along its length

The continuum of the above-mentioned pull stap after the continuum securing above-mentioned engaging portion is cut off,

The above-mentioned pull stap obtained by cut-out is fixed on the continuum of above-mentioned telescopic sheet via above-mentioned bonding agent.

< 38 > is as the manufacture method of the disposable diaper of above-mentioned < 37 >, wherein, the above-mentioned pull stap being fixed on the continuum of above-mentioned telescopic sheet is turned back, via above-mentioned engaging portion, this pull stap is temporarily fixed on the continuum of this telescopic sheet.

The manufacture method of the disposable diaper of < 39 > any one of above-mentioned < 36 > to < 38 >, wherein, the other end along above-mentioned width in the continuum of above-mentioned telescopic sheet, along the length direction adhesive-applying continuously of the continuum of this telescopic sheet.

The manufacture method of the disposable diaper of < 40 > any one of above-mentioned < 35 > to < 39 >, wherein, the continuum of above-mentioned telescopic sheet is cut off, obtain the lateral plate of above-mentioned retractility

The lateral plate of above-mentioned retractility is installed on the skin lateral plate of the component parts of the continuum as above-mentioned absorbent main body or the continuum of non-skin lateral plate.

< 41 > is as the manufacture method of the disposable diaper of above-mentioned < 40 >, wherein, using integrated via bonding agent with the continuum of positive dough sheet for the continuum of the stereo enclosure formation sheet of the component parts of the continuum as above-mentioned absorbent main body, obtain the continuum of above-mentioned skin lateral plate thus

The lateral plate of above-mentioned retractility is installed on the continuum of the above-mentioned skin lateral plate obtained.

< 42 > is as the manufacture method of the disposable diaper of above-mentioned < 39 >, wherein, when the continuum of the non-skin lateral plate of the component parts to the continuum as above-mentioned absorbent main body installs the lateral plate of above-mentioned retractility, via the bonding agent of outer surface of lateral plate being coated in this retractility, the lateral plate of this retractility is installed on the continuum of this non-skin lateral plate

When the continuum of the skin lateral plate of the component parts to the continuum as above-mentioned absorbent main body installs the lateral plate of above-mentioned retractility, via the bonding agent of inner surface of lateral plate being coated in this retractility, the lateral plate of this retractility is installed on the continuum of this skin lateral plate.

The manufacture method of the disposable diaper of < 43 > any one of above-mentioned < 35 > to < 42 >, wherein, using the continuum of the continuum of the skin lateral plate of the component parts of the continuum as above-mentioned absorbent main body and non-skin lateral plate, to sandwich the mode integration of absorber between the two.

The manufacture method of the disposable diaper of < 44 > any one of above-mentioned < 36 > to < 39 >, wherein, when the above-mentioned lateral plate being provided with above-mentioned pull stap being arranged on the continuum of non-skin lateral plate of the component parts of the continuum as above-mentioned absorbent main body, the one side of the continuum of this non-skin lateral plate configures absorber

With the continuum of the overlapping skin lateral plate of the mode covering the face of the opposition side of above-mentioned absorber,

The continuum of above-mentioned non-skin lateral plate is engaged with between the continuum of above-mentioned skin lateral plate.

The manufacture method of the disposable diaper of < 45 > any one of above-mentioned < 36 > to < 39 >, wherein, when the above-mentioned lateral plate being provided with above-mentioned pull stap is arranged on the continuum of skin lateral plate of the component parts of the continuum as above-mentioned absorbent main body, the one side of the continuum of this skin lateral plate configures absorber

With the continuum of the overlapping non-skin lateral plate of the mode covering the face of the opposition side of above-mentioned absorber,

The manufacture method of the disposable diaper of < 46 > any one of above-mentioned < 36 > to < 45 >, wherein, the above-mentioned disposable diaper continuum obtained is cut to single disposable diaper.

Embodiment

Below, utilize embodiment to be described in further detail the present invention, but scope of the present invention is not by any restriction of the content of following examples record.

[embodiment 1]

Manufacture the disposable diaper with the embodiment 1 of the structure same with the disposable diaper shown in Fig. 1 to Fig. 4.

As the lateral plate sheet material 31,32 forming lateral plate 3, use grammes per square metre (mass area ratio) 13g/m ²non-woven fabrics.10 elastomeric elements formed by rubber covered wire 33 are configured with in lateral plate 3.As stereo enclosure formation sheet 21b, the grammes per square metre of the lit-par-lit structure by having spun-bonded non-woven fabrics and melt spraying non-woven fabrics is used to be 10g/m ²lamination non-woven fabrics folding and form 2 layers of structure part (total grammes per square metre of 2 layers of structure part is 20g/m ²) structure.In addition, as non-skin lateral plate 22, grammes per square metre 18g/m is used in ²the outer surface of resin molding be bonded to grammes per square metre 13g/m ²composite members (total grammes per square metre 31g/m of outer non-woven fabrics ²).As bonding agent, in the laminating of lateral plate sheet material 31,32, use the admixture of SIS and SBS, in joint in addition, use the heat molten type bonding agent of SBS.The grammes per square metre of the bonding agent used in the formation of main body side bond layer 35 and front bond layer 36 is all set to 40g/m ², the grammes per square metre that main body side layers cementing oxidant layer 31a and main body side extend the bonding agent that formation that bond layer 31a' and front layers cementing oxidant layer 31b and front extend bond layer 31b' uses all is set to 10g/m ².In addition, the grammes per square metre of bonding agent that multiple middle bond layer 37 uses all is set to 40g/m ².

The width of the X-direction of main body side layers cementing oxidant layer 31a and front layers cementing oxidant layer 31b is all set to 25mm.Main body side extends the width that bond layer 31a' and front extend the X-direction of bond layer 31b' and is all set to 5mm.The width of the X-direction of main body side bond layer 35 and front bond layer 36 is all set to 12mm.The width of the X-direction of middle bond layer 37 is all set to 0.5mm, and is formed with 10.In addition, the length of the X-direction at the position that the upper side engagement portion 66 of lateral plate 3 is overlapping on the thickness direction of diaper with main body side bond layer 35 is set to 4mm, the width of the X-direction of upper side engagement portion 66 (inner surface side bond layer 66a) is set to 10mm, the length of the X-direction at the position that lower side engagement portion 62 is overlapping on the thickness direction of diaper with main body side bond layer 35 is set to 4mm, and the width of the X-direction of lower side engagement portion 62 or outer surface side bonds oxidant layer 62a is set to 30mm.

The length of the X-direction at the position that upper side engagement portion 66, main body side bond layer 35 and lower side engagement portion 62 are overlapping is in a thickness direction set to 4mm.

[embodiment 2 and 3]

In embodiment 1, the grammes per square metre of the bonding agent used in the formation of main body side bond layer 35 and front bond layer 36 is set to 50g/m ², main body side is extended the grammes per square metre that bond layer 31a' and front extend the bonding agent used in the formation of bond layer 31b' and is set to 5g/m ².In addition, the diaper of embodiment 2 is manufactured in mode similarly to Example 1.In addition, in embodiment 1, the grammes per square metre of the bonding agent used in the formation of main body side bond layer 35 and front bond layer 36 is set to 50g/m ², main body side is extended the grammes per square metre that bond layer 31a' and front extend the bonding agent used in the formation of bond layer 31b' and is set to 10g/m ².In addition, the diaper of embodiment 3 is manufactured in mode similarly to Example 1.

[comparative example 1 and 2]

In comparative example 1, do not form main body side in embodiment 1 and extend bond layer 31a' and front manufactures diaper with extending bond layer 31b'.In comparative example 2, do not form main body side in example 2 and extend bond layer 31a' and front manufactures diaper with extending bond layer 31b'.

[evaluation]

The diaper obtained in embodiment and comparative example is measured to the bond strength being configured in the elastomeric element 33 of lateral plate 3.To comprise the state of 5 middle bond layers 37, cut the front of lateral plate 3 from diaper.Lateral plate 3 after cutting is cut off between elastomeric element 33, makes 10 and measure sheet.Then, to the mensuration sheet comprising an elastomeric element 33, make the side that cuts from diaper upwards under making the leading section 3a side direction of lateral plate 3, make the first lateral plate sheet material 31 and the second lateral plate sheet material 32 leave and the end of elastomeric element 33 is exposed in this condition.The end of the elastomeric element 33 exposed is grasped with fixture.On the other hand, the position extending the forward side of the forming position of bond layer 31b' than front bond layer 36 and front in downward lateral plate 3 grasps the position that there is not elastomeric element 33 with fixture.Then, the fixture of the end grasping flexible parts 33 is lifted upward with the speed of 3000mm/min, carries out extracting of this elastomeric element 33.Measure the load in the extracting of elastomeric element 33, obtain maximum load.The each elastomeric element 33 10 being measured to sheet carries out this mensuration respectively, calculates the meansigma methods of the maximum load obtained by measuring.This meansigma methods is set to the bond strength of elastomeric element.The results are shown in in following table 1.

[table 1]

Result as shown in Table 1 can be clear and definite, in diaper obtained in embodiments, is configured in the diaper of bond strength higher than comparative example of the elastomeric element 33 of lateral plate 3.

Industrial utilizability

In disposable diaper of the present invention, the elastomeric element be configured in lateral plate is reliably fixed on lateral plate sheet material, even if this lateral plate that therefore stretches when wearing diaper also not easily causes the stripping of elastomeric element.

Claims

1. a disposable diaper, it comprises: have absorber, be configured in the skin lateral plate of the inner surface side of this absorber and be configured in the absorbent main body of non-skin lateral plate of outer surface side of this absorber; With the lateral plate of the retractility of the sidepiece or both sides that are arranged on this absorbent main body, the feature of this disposable diaper is:

Described lateral plate is provided with pull stap in leading section, and this lateral plate has: the first lateral plate sheet material and these 2 lateral plate sheet materials of the second lateral plate sheet material; And be fixed on the elastomeric element between 2 these lateral plate sheet materials with the state of extending,

Described elastomeric element, near the end of described absorbent main body side or near it and the end of the side, leading section of described lateral plate or its, is fixed on both the first lateral plate sheet material and the second lateral plate sheet material,

A () first is in lateral plate sheet material and the second lateral plate sheet material, turn back and the main body side lit-par-lit structure part formed to the inner side of described lateral plate in the end that at least the first lateral plate sheet material has described absorbent main body side,

In described main body side lit-par-lit structure part, imposing bonding agent between the first lateral plate sheet material relative by turning back, forming main body side layers cementing oxidant layer,

Described main body side layers cementing oxidant layer has and exceedes described main body side lit-par-lit structure part and extend bond layer to the main body side that the width center side of described lateral plate extends,

Described elastomeric element utilizes described main body side to extend bond layer and is positioned at the second lateral plate sheet material side and the main body side bond layer at the fixing described end of absorbent main body side or the position near it, be fixed on both the first lateral plate sheet material and the second lateral plate sheet material, or

B () first is in lateral plate sheet material and the second lateral plate sheet material, turn back and the front lit-par-lit structure part formed to the inner side of described lateral plate in the end that at least the first lateral plate sheet material has the side, leading section of described lateral plate,

In the lit-par-lit structure part of described front, imposing bonding agent between the first lateral plate sheet material relative by turning back, forming front layers cementing oxidant layer,

Described front layers cementing oxidant layer has and exceedes described front lit-par-lit structure part and extend bond layer to the front that the width center side of described lateral plate extends,

Described elastomeric element utilizes described front to extend bond layer and is positioned at the second lateral plate sheet material side and the fixing end of side, leading section of described lateral plate or the front bond layer at the position near it, is fixed on both the first lateral plate sheet material and the second lateral plate sheet material.

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

Described main body side extends in bond layer and main body side adhesive linkage, the position consistency of the end of the width center side of described lateral plate.

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

Described front extends in bond layer and described front adhesive linkage, the position consistency of the end of the width center side of described lateral plate.

4. the disposable diaper according to any one of claims 1 to 3, is characterized in that:

First lateral plate sheet material has: the main body side lit-par-lit structure part turned back to the inside and formed in the end of described absorbent main body side; Turn back to the inside with the end of the side, leading section of described lateral plate and the front lit-par-lit structure part formed,

Described layers cementing oxidant layer has and exceedes described main body side lit-par-lit structure part and extend bond layer to the main body side that the width center side of described lateral plate extends, and described layers cementing oxidant layer has and exceedes described front lit-par-lit structure part and extend bond layer to the front that the width center side of described lateral plate extends

Described elastomeric element utilizes described main body side to extend bond layer and is positioned at the described main body side bond layer of the second lateral plate sheet material side, be fixed on both the first lateral plate sheet material and the second lateral plate sheet material, and utilize described front to extend bond layer and be positioned at the described front bond layer of the second lateral plate sheet material side, being fixed on both the first lateral plate sheet material and the second lateral plate sheet material.

5. the disposable diaper according to any one of Claims 1 to 4, is characterized in that:

The first lateral plate sheet material in first lateral plate sheet material and the second lateral plate sheet material is configured in outer surface side.

6. a manufacture method for telescopic sheet, it comprises: the step of carrying a pair banded sheet; And between this banded sheet, the direction that throughput direction with this banded sheet intersects configures linear elastic bodies, in a sidepiece and the other side of this banded sheet of the throughput direction along this banded sheet, respectively by linear elastic bodies with elongation state be fixed on a pair this banded sheet both on step, the feature of the manufacture method of this telescopic sheet is:

Comprise the steps: the banded sheet in sheet banded described in a pair, along this throughput direction adhesive-applying at least one party in a sidepiece and the other side of this banded sheet of the throughput direction along this banded sheet, the sidepiece being coated with described bonding agent is turned back in the mode that this bonding agent becomes inner side and cambium layer laminated structure section divides, another banded sheet in described banded sheet and between a described banded sheet with described lit-par-lit structure part, described linear elastic bodies is fixed with elongation state by the direction that the throughput direction with these banded sheets intersects

When forming described lit-par-lit structure part, a described banded sheet is turned back by the mode exposed with a part for described bonding agent, utilizes this bonding agent exposed after turning back to fix described linear elastic bodies.

7. the manufacture method of telescopic sheet as claimed in claim 6, is characterized in that:

Comprise the step to the banded sheet adhesive-applying of another in sheet banded described in a pair.

8. the manufacture method of telescopic sheet as claimed in claims 6 or 7, is characterized in that:

To the banded sheet in sheet banded described in a pair, in the both sides of this banded sheet of the throughput direction along this banded sheet, along this throughput direction adhesive applicating machine difference zonally bonding agent described in continuously coating, form described lit-par-lit structure part by described turning back.

9. the manufacture method of the telescopic sheet according to any one of claim 6 ~ 8, is characterized in that:

To another the banded sheet in sheet banded described in a pair, in the both sides of this banded sheet of the throughput direction along this banded sheet, along this throughput direction adhesive applicating machine difference zonally bonding agent described in continuously coating, and the zone line between these both ends, along this throughput direction adhesive applicating machine continuously coating many described bonding agents.

10. a manufacture method for disposable diaper, this disposable diaper comprises: have absorber, be configured in the skin lateral plate of the inner surface side of this absorber and be configured in the absorbent main body of non-skin lateral plate of outer surface side of this absorber; With the lateral plate of the retractility of the sidepiece or both sides that are arranged on this absorbent main body, the feature of the manufacture method of this disposable diaper is, comprising:

By the continuum of the telescopic sheet that the manufacture method by the telescopic sheet any one of claim 6 ~ 9 obtains, cut off at its width, obtain the step of the lateral plate of described retractility; With

The component parts of the continuum of the lateral plate of described retractility and described absorbent main body is engaged, obtains the step of the continuum of described disposable diaper.

The manufacture method of 11. disposable diapers as claimed in claim 10, is characterized in that:

The continuum being coated with the pull stap of bonding agent is cut off, the pull stap obtained is arranged at intervals the end in the width direction in the continuum of described telescopic sheet, then the continuum of described telescopic sheet is cut off by cut-out.

The manufacture method of 12. disposable diapers as described in claim 10 or 11, is characterized in that:

The other end along described width in the continuum of described telescopic sheet, along the length direction adhesive-applying continuously of the continuum of this telescopic sheet.

The manufacture method of 13. disposable diapers according to any one of claim 10 ~ 12, is characterized in that:

The continuum of described telescopic sheet is cut off, obtains the lateral plate of described retractility,

The lateral plate of described retractility is installed on the skin lateral plate of the component parts of the continuum as described absorbent main body or the continuum of non-skin lateral plate.

The manufacture method of 14. disposable diapers according to any one of claim 10 ~ 13, is characterized in that:

Using the continuum of the continuum of the skin lateral plate of the component parts of the continuum as described absorbent main body and non-skin lateral plate, to sandwich the mode integration of absorber between the two.

The manufacture method of 15. disposable diapers according to any one of claim 10 ~ 14, is characterized in that:

Obtained described disposable diaper continuum is cut to single disposable diaper.