CN204909840U

CN204909840U - Disposable diaper

Info

Publication number: CN204909840U
Application number: CN201520535577.2U
Authority: CN
Inventors: 铃木阳一; 佐藤信也; 福田优子; 中尾佑马; 李登荣
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2014-07-23
Filing date: 2015-07-22
Publication date: 2015-12-30
Anticipated expiration: 2025-07-22
Also published as: RU167436U1; RU167436U9; RU170846U1

Abstract

The utility model discloses a disposable diaper (1) has exterior body (5) that dispose in absorbent main body's (10) non - skin opposite face side. Exterior body (5) including outer synusia (51), interior synusia (52), horizontal (Y orientation) dispose with the extension state between outer synusia (51) and interior synusia (52) elastomeric element (53) and along horizontal (Y orientation) in banded bonding agent (54) that vertically (X orientation) intermittently disposed. Exterior body (5) have flexible regional ET. Flexible regional ET forms according to following mode: intermittently dispose elastomeric element (53) in vertical (X orientation), adjacent elastomeric element (53) all dispose banded bonding agent (54) more than each other in the X orientation, outside banded bonding agent (54) is fixed synusia (51) and interior synusia (52).

Description

Disposable diaper

Technical field

This utility model (the first utility model) relates to the disposable diapers such as Breeches type disposable diaper.

Background technology

In the Breeches type disposable diaper of an example as disposable diaper, be configured with exterior body in the outside of absorbent main body of the lengthwise with absorber.Exterior body generally has outer-skin sheet and inner layer piece, between this outer-skin sheet and this inner layer piece, has with the elastomeric element of the state of the transverse extension at this disposable diaper configuration.By the contraction of elastomeric element configured like this, form wrinkle at exterior body.

Such as, in Japan Patent No. 2628173 publication, record a kind of exterior body engages integration disposable diaper by adhesive pattern, wherein this adhesive pattern is formed by with the parallel discontinuous bonding wire intersected with the elastomeric element configured in the state of transverse extension.According to the disposable diaper recorded in Japan Patent No. 2628173 publication, on exterior body, be formed with the wrinkle of soft wavy surfaces by described adhesive pattern, improve flexibility.

In addition, Breeches type disposable diaper is configured with exterior body in the outside of absorbent main body of the lengthwise with absorber.Exterior body generally has outer-skin sheet and inner layer piece, between this outer-skin sheet and this inner layer piece, has with many leg elastic members of the state of extending along the leg opening part of this Breeches type disposable diaper configuration.Like this with the leg elastic members of the state configuration of extending along the curved shape of leg opening part, generally be fixed by whole adhesive-applying between outer-skin sheet and this inner layer piece, by the contraction of this leg elastic members, exterior body forms leg creases.

Such as, in Japanese Unexamined Patent Publication 11-216160 publication, record a kind of Breeches type disposable diaper, by the ground of striation between outer-skin sheet and the inner layer piece bonding agent that is coated with and be adhesively fixed with this inside and outside synusia and leg elastic members.Like this, bonding agent is coated into the mode of striation compared with the mode of whole adhesive-applying, improves the breathability of exterior body, and decreases the amount of bonding agent, and exterior body is easy to become more soft thus, and feel is improved.

As technology different with it, a kind of technology is recorded in Japanese Unexamined Patent Publication 2008-212278 publication, the width setup being positioned at the strip bonding agent of the crotch region of diaper, by bonding agent along being laterally applied as strip, is maximum by fixing about absorbent main body and exterior body.

Summary of the invention

This utility model (the first utility model) relates to a kind of disposable diaper, it comprises absorbent main body and exterior body, described absorbent main body comprises: positive dough sheet, back sheet, be configured in absorber between these two sheets, and described exterior body is configured at the non-skin opposite face side of this absorbent main body.Described exterior body comprises: the outer-skin sheet forming the non-skin opposite face side of the outer surface of described disposable diaper; The inner layer piece of skin opposite face side; Between this outer-skin sheet and this inner layer piece, with the elastomeric element of the state of the transverse extension at this disposable diaper configuration; With along this transverse direction at the banded bonding agent longitudinally configured intermittently.Described exterior body has stretching region, this stretching region such as following manner is formed, that is: many described elastomeric elements configure intermittently in the longitudinal direction of described disposable diaper, all be configured with banded bonding agent described in one or more each other at longitudinal this adjacent elastomeric element, fix described outer-skin sheet and described inner layer piece via this banded bonding agent.

This utility model (the second utility model) relates to a kind of Breeches type disposable diaper, it comprises absorbent main body and exterior body, absorbent main body comprises positive dough sheet, back sheet, is configured in absorber between these two sheets, exterior body is configured at the non-skin opposite face side of this absorbent main body, the edge, both sides of the ventral region in this exterior body engages with the edge, both sides in the dorsal part region in this exterior body, and forms a pair side seal portion, waist opening portion and a pair leg opening part.Described exterior body comprises: the outer-skin sheet forming the non-skin opposite face side of the outer surface of described Breeches type disposable diaper; The inner layer piece of skin opposite face side; Between this outer-skin sheet and this inner layer piece, with respectively along described a pair leg opening part curve-like extend state configuration many leg elastic members; Fix many leg bonding agents of this leg elastic members.Overlook and described Breeches type disposable diaper is launched and the state of extending, the region being configured with described many leg elastic members in the longitudinal direction of described Breeches type disposable diaper, described many leg bonding agents are along the landscape configuration of this Breeches type disposable diaper, and described many leg bonding agents configure in described leg bonding agent adjacent in the longitudinal direction of the described Breeches type disposable diaper mode being spaced apart two or more different interval each other.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the using state (wearing effect) of the Breeches type disposable diaper of the embodiment representing this utility model (the first utility model).

Diaper shown in Fig. 1 launches and the expansion plane graph of the state of extending by Fig. 2 viewed from skin abutment face side.

Diaper shown in Fig. 1 launches and the expansion plane graph of the state of extending by Fig. 3 viewed from non-skin abutment face side.

The major part of the diaper shown in Fig. 3 is amplified the amplification view represented by Fig. 4.

Fig. 5 is the V-V line sectional view shown in Fig. 1.

Fig. 6 is the VI-VI line sectional view shown in Fig. 1.

Fig. 7 is the axonometric chart of the using state (wearing effect) of the Breeches type disposable diaper of the first embodiment represented as this utility model (the second utility model).

Diaper shown in Fig. 7 launches and the expansion plane graph of the state of extending by Fig. 8 viewed from skin abutment face side.

Fig. 9 is the III-III line sectional view shown in Fig. 8.

Diaper shown in Fig. 7 launches and the expansion plane graph of the state of extending by Figure 10 viewed from non-skin abutment face side.

The major part of the diaper shown in Figure 10 is amplified the amplification view represented by Figure 11.

Figure 12 is the VI-VI line sectional view shown in Fig. 7.

The Breeches type disposable diaper of the second embodiment as this utility model (the second utility model) launches and the expansion plane graph of the state of extending (figure suitable with Figure 10) by Figure 13 viewed from non-skin abutment face side.

Detailed description of the invention

But, in Japan Patent No. 2628173 publication, about with the configuration relation of the elastomeric element configured in the state of transverse extension and bonding agent, do not do any record.In addition, the flexibility and the demand improving outward appearance that improve further exterior body is had.

Therefore, this utility model (the first utility model) provides a kind of disposable diaper can eliminating the shortcoming that above-mentioned prior art has.

In addition, in Japanese Unexamined Patent Publication 11-216160 publication, the bonding agent of striation is applied to the whole region between outer-skin sheet and inner layer piece, does not do any record about in what kind of region applying.In addition, in Japanese Unexamined Patent Publication 11-216160 publication, the mode about the interval of the bonding agent of change striation does not do any record.

In addition, as mentioned above, the strip bonding agent of Japanese Unexamined Patent Publication 2008-212278 publication is the bonding agent for attaching absorbent main body and exterior body, being configured between outer-skin sheet and inner layer piece, is not with the bonding agent of the leg elastic members of the state of extending along leg opening part curve-like configuration for fixing.Like this, in Japanese Unexamined Patent Publication 2008-212278 publication, do not do any record about the fixing of the leg elastic members between outer-skin sheet and inner layer piece.

Therefore, this utility model (the second utility model) provides a kind of Breeches type disposable diaper can eliminating the shortcoming that above-mentioned prior art has.

This utility model (the first utility model) provides a kind of disposable diaper, it comprises absorbent main body and exterior body, described absorbent main body comprises: positive dough sheet, back sheet, be configured in absorber between these two sheets, and described exterior body is configured at the non-skin opposite face side of this absorbent main body.Described exterior body comprises: the outer-skin sheet forming the non-skin opposite face side of the outer surface of described disposable diaper; The inner layer piece of skin opposite face side; Between this outer-skin sheet and this inner layer piece, with the elastomeric element of the state of the transverse extension at this disposable diaper configuration; With along this transverse direction at the banded bonding agent longitudinally configured intermittently, described exterior body has stretching region, this stretching region is according to such as following manner formation, that is: many described elastomeric elements configure intermittently in the longitudinal direction of described disposable diaper, all be configured with banded bonding agent described in one or more each other at longitudinal this adjacent elastomeric element, fix described outer-skin sheet and described inner layer piece via this banded bonding agent.

This utility model (the second utility model) provides a kind of Breeches type disposable diaper, it comprises absorbent main body and exterior body, absorbent main body comprises positive dough sheet, back sheet, be configured in the absorber between these two sheets, exterior body is configured at the non-skin opposite face side of this absorbent main body, the edge, both sides of the ventral region in this exterior body engages with the edge, both sides in the dorsal part region in this exterior body, and form a pair side seal portion, waist opening portion and a pair leg opening part, described exterior body comprises: the outer-skin sheet forming the non-skin opposite face side of the outer surface of described Breeches type disposable diaper, the inner layer piece of skin opposite face side, many leg elastic members, its between this outer-skin sheet and this inner layer piece with respectively along described a pair leg opening part curve-like the state of extending configure, fix many leg bonding agents of this leg elastic members.Overlook and described Breeches type disposable diaper is launched and the state of extending, the region being configured with described many leg elastic members in the longitudinal direction of described Breeches type disposable diaper, described many leg bonding agents are along the landscape configuration of this Breeches type disposable diaper, and described many leg bonding agents configure in described leg bonding agent adjacent in the longitudinal direction of the described Breeches type disposable diaper mode being spaced apart two or more different interval each other.

Below, preferred embodiment with reference to accompanying drawing, this utility model (the first utility model) is described based on it.As the disposable diaper 1 of an embodiment of this utility model (the first utility model) (hereinafter also referred to " diaper 1 ".), as shown in FIG. 1 to 3, comprising: the absorbent main body 10 of lengthwise, its have the positive dough sheet 2 of liquid permeability, the difficult permeability of liquid back sheet 3, be configured in absorber 4 between these two sheets 2,3; With the exterior body 5 of non-skin opposite face side being configured at absorbent main body 10.Specifically, the exterior body 5 of diaper 1 overlook make it launch and the state of extending time, be divided into the ventral region A of the veutro being configured in wearer when wearing, be configured in crotch region C between the dorsal part region B of the dorsal part of wearer and ventral region A and dorsal part region B when wearing.Diaper 1 is so-called Breeches type disposable diaper, wherein, edge, both sides 5b1,5b1 of edge, both sides 5a1,5a1 of the exterior body 5 of ventral region A and the exterior body 5 of dorsal part region B engage and form a pair side seal portion S, S, waist opening portion WO and a pair leg opening part LO, LO.

In this manual, so-called " skin opposite face " refer to diaper 1 or its component parts (such as absorbent main body 10), when wear towards the face of the skin side of wearer, what is called " non-skin opposite face " refer to diaper 1 or its component parts, when wearing towards the face of the opposition side (side of wearing the clothes) of the skin side of wearer.In diaper 1, longitudinally (X-direction) with along diaper 1 or the direction as the long limit of the absorbent main body 10 of the lengthwise of its component parts consistent, transverse direction (Y-direction) is consistent with disposable diaper or the width as the absorbent main body 10 of its component parts.

In addition, diaper 1 is for the upper symmetrical shape of vertical centre line C L 1 extended of longitudinal direction (X-direction).In addition, the CL2 in Fig. 2, Fig. 3 is the upper horizontal centrage extended of transverse direction (Y-direction) be divided into two by diaper 1, orthogonal with vertical centre line C L 1.

What is called makes above-mentioned diaper 1 launch and the state of extending, as shown in Figure 2 and Figure 3, refer to and side seal portion S is torn, make diaper 1 for deployed condition, the elastomeric element in each portion is stretched and makes the diaper 1 of this deployed condition extend to the state of design size (measure-alike with when expanding to plane under the state impact of elastomeric element got rid of completely).

As shown in Figure 2, absorbent main body 10 has the shape of the relatively long lengthwise in a direction (longitudinally (X-direction)).Absorbent main body 10 comprises: the back sheet 3 of the positive dough sheet 2 forming the liquid permeability of skin opposite face, the difficult permeability (also comprising water-repellancy) of the liquid forming non-skin opposite face, be configured in the absorber 4 of the liquid retainability between these two sheets 2,3.In addition, in the both sides of (X-direction) along the longitudinal of absorbent main body 10, as shown in Figure 2, the side pad 6,6 had with the elastomeric element of the state of extending in longitudinal direction (X-direction) configuration is provided with.Specifically, side pad 6 by liquid impermeability or water-repellancy and the material of breathability form, three-dimensional gauffer formation elastomeric element 61 is configured in the state of extending in longitudinal direction (X-direction) near the free end of each side pad 6.When diaper is worn, by the contraction of three-dimensional gauffer formation elastomeric element 61, edge-on of the free end of side pad 6, becomes so-called three-dimensional gauffer, stops body fluid to flow out to transverse direction (Y-direction).

As the absorbent main body 10 formed with upper type, make its longitudinally (X-direction) with to launch and the longitudinal direction (X-direction) of the diaper 1 of elongation state is consistent, be engaged in the central part of exterior body 5 by bonding agent.Like this, exterior body 5 configures and is bonded and fixed to non-skin opposite face side on the thickness direction of disposable diaper 1, that form the back sheet 3 of absorbent main body 10.

As shown in Figure 2 and Figure 3, exterior body 5 comprises: the outer-skin sheet 51 forming the non-skin opposite face side of the outer surface of diaper 1; The inner layer piece 52 of skin opposite face side; At the elastomeric element 53 that transverse direction (Y-direction) configures with elongation state between outer-skin sheet 51 and inner layer piece 52; With apply intermittently in longitudinal direction (X-direction) and the banded bonding agent 54 (with reference to Fig. 4) that configures along transverse direction (Y-direction).Specifically, in diaper 1, exterior body 5 comprises an inner layer piece 52 of the skin opposite face side of an outer-skin sheet 51 of the non-skin opposite face side of the outer surface forming diaper 1 and the inner surface of formation diaper 1.Outer-skin sheet 51 and inner layer piece 52, in longitudinal direction (X-direction) central part shrinking to the inside, are formed as mutual same shape formed objects.And, between outer-skin sheet 51 and inner layer piece 52, be configured with many elastomeric elements 53 and leg elastic members 55.

When the elastomeric element 53 of diaper 1 is described in detail, as shown in Figure 2 and Figure 3, elastomeric element 53 comprises: 5 ~ 20 the first elastomeric elements 531, it is at ventral region A and dorsal part region B, with from the mode that comprise the part at the both ends of longitudinal direction (X-direction) of ora terminalis towards absorbent main body 10 becoming waist opening portion WO, configure intermittently in longitudinal direction (X-direction) inner side; Article 3, ~ 10 the second elastomeric element 532, it configures in longitudinal direction (X-direction) inner side from the position vacating the interval of 2mm ~ 25mm than the first elastomeric element 531 near horizontal centre line C L 2 inside longitudinal direction (X-direction) intermittently towards the periphery becoming leg opening part LO.In addition, the elastomeric element 53 of diaper 1 has the 3rd elastomeric element 533 of 2 articles ~ 6 articles, it is only at ventral region A, configures intermittently from the position vacating the interval of 3mm ~ 8mm to longitudinal direction (X-direction) inner side than the second elastomeric element 532 near horizontal centre line C L 2 towards horizontal centre line C L 2 inside longitudinal direction (X-direction).

As shown in Figure 4, exterior body 5 has stretching region ET.Stretching region ET is formed in the following manner: configure many elastomeric elements 53 intermittently in longitudinal direction (X-direction), all be configured with the banded bonding agent 54 of more than 1 at the upper adjacent elastomeric element 53,53 of longitudinal direction (X-direction) each other, via banded bonding agent 54, outer-skin sheet 51 and inner layer piece 52 fixed.Specifically, at ventral region A and the dorsal part region B of diaper 1, between the outer-skin sheet 51 forming exterior body 5 and inner layer piece 52, be configured with many first elastomeric elements 531 and the second elastomeric elements 532 in transverse direction (Y-direction) with elongation state, form the first Hookean region T1 and the second Hookean region T2 thus respectively.In addition, at ventral region A, between the outer-skin sheet 51 forming exterior body 5 and inner layer piece 52, be configured with many articles of the 3rd elastomeric elements 533 in transverse direction (Y-direction) with elongation state, form the 3rd Hookean region T3 thus.In diaper 1, so-called above-mentioned stretching region ET, is equivalent to the second Hookean region T2 of ventral region A and dorsal part region B and the 3rd Hookean region T3 of ventral region A.

At the second Hookean region T2 as stretching region ET, as shown in Figure 4, between outer-skin sheet 51 and inner layer piece 52, be configured with the second elastomeric element 532 of the state of extending in transverse direction (Y-direction) intermittently in longitudinal direction (X-direction).In addition, be configured at upper adjacent the second elastomeric element 532, the 532 banded bonding agent 54 each other of longitudinal direction (X-direction), be all applied as band shape along transverse direction (Y-direction).Be configured at upper adjacent the second elastomeric element 532, the 532 banded bonding agent 54 each other of longitudinal direction (X-direction), equal preferred disposition more than 1 less than 10, particularly preferably configures more than 2 less than 5.In addition, in diaper 1, as shown in Figure 4,2 ribbon bonding agents 54 are all configured with each other at the second elastomeric element 532,532 that longitudinal direction (X-direction) is adjacent.And, engaged partly by banded bonding agent 54 between outer-skin sheet 51 with inner layer piece 52, and form the second Hookean region T2 (stretching region ET) being imparted retractility by many second elastomeric elements 532.

At the 3rd Hookean region T3 as stretching region ET, as shown in Figure 4, between outer-skin sheet 51 and inner layer piece 52, be configured with the 3rd elastomeric element 533 of the state of extending in transverse direction (Y-direction) intermittently in longitudinal direction (X-direction).In addition, be configured at upper adjacent the 3rd elastomeric element 533, the 533 banded bonding agent 54 each other of longitudinal direction (X-direction), all apply along transverse direction (Y-direction).Be configured at upper adjacent the 3rd elastomeric element 533, the 533 banded bonding agent 54 each other of longitudinal direction (X-direction), equal preferred disposition more than 1 less than 4, particularly preferably configures more than 1 less than 3.In addition, in diaper 1, as shown in Figure 4,2 ribbon bonding agents 54 are all configured with each other at upper the 3rd adjacent elastomeric element 533,533 of longitudinal direction (X-direction).And, engaged partly by banded bonding agent 54 between outer-skin sheet 51 with inner layer piece 52, and form the 3rd Hookean region T3 (stretching region ET) being imparted retractility by many articles of the 3rd elastomeric elements 533.

As the second Hookean region T2 of stretching region ET and the 3rd Hookean region T3, from the viewpoint of the balance of softness and adhesive strength, preferably longitudinally the length (width W 2) (reference Fig. 4) of (X-direction) upper adjacent banded bonding agent 54,54 interval Wl each other (with reference to Fig. 4) and the longitudinal direction of each banded bonding agent 54 is identical.

Specifically, as the second Hookean region T2 of stretching region ET and the 3rd Hookean region T3, longitudinally (X-direction) upper adjacent banded bonding agent 54,54 interval W1 each other (with reference to Fig. 4), from the same viewpoint, be preferably more than 0.5mm below 10mm, further preferred more than 0.7mm below 5mm.

The length (width W 2) (with reference to Fig. 4) of the longitudinal direction of each banded bonding agent 54, from the same viewpoint, is preferably more than 0.5mm below 10mm, further preferred more than 0.7mm below 5rnm.

In addition, as the second Hookean region T2 of stretching region ET and the 3rd Hookean region T3, longitudinally (X-direction) upper second adjacent elastomeric element 532,532 each other, the 3rd elastomeric element 533,533 interval W3 is each other preferably more than 0.5mm below 10mm, more preferably more than 0.7mm below 5mm.

Coating machine is such as used banded bonding agent 54 to be coated on the skin opposite face of outer-skin sheet 51 or the non-skin opposite face of inner layer piece 52.

In addition, at the first Hookean region T1, as shown in Figure 2 to 4, between outer-skin sheet 51 and inner layer piece 52, be configured with the first elastomeric element 531 of the upper state of extending of transverse direction (Y-direction) intermittently in longitudinal direction (X-direction).In addition, at upper the first adjacent elastomeric element 531,531 of longitudinal direction (X-direction) each other, utilize the exterior body weld portion 56 configured intermittently in transverse direction (Y-direction), fixed partly between outer-skin sheet 51 and inner layer piece 52.Like this between outer-skin sheet 51 and inner layer piece 52 by the first Hookean region T1 fixed partly, many elastomeric elements 531 are with not by the mode of multiple exterior body weld portion 56 and with in the upper state configuration of extending of transverse direction (Y-direction).The mode that exterior body weld portion 56 forms string with (X-direction) along the longitudinal configures intermittently, and the row of the weld portion be made up of the plurality of exterior body weld portion 56, transverse direction (Y-direction) is formed with multiple row at spaced intervals.

Exterior body weld portion 56 is by by outer-skin sheet 51 and inner layer piece 52 overlap, is then formed this part enforcement heat embossing processing.As heat embossing device can use there is knurling rolls and anvil roller and there is at the outer peripheral face of its knurling rolls the embossing device of the protuberance of the shape corresponding with the weld portion of exterior body weld portion 56.As the processing forming exterior body weld portion 56, embossing can also be replaced to process and adopt ultrasonic sealing function, laser etc.

In addition, in diaper 1, as shown in Figure 2 to 4, between outer-skin sheet 51 and inner layer piece 52, leg elastic members 55 is configured with the state that the shrinking portion of the central part along outer-skin sheet 51 and inner layer piece 52 extends.Leg elastic members 55, by the above-mentioned multi-ribbon shape bonding agent 54 configured intermittently in longitudinal direction (X-direction), is fixed between outer-skin sheet 51 and inner layer piece 52.

The exterior body 5 of diaper 1 is further described.

As shown in Figure 3, Figure 4, exterior body 5 has pair of end portions fixed part 57,57, it is positioned at edge, both sides 5a1,5al of ventral region A and edge, both sides 5b1,5b1 of dorsal part region B, outer-skin sheet 51 and inner layer piece 52 is fixed by the bonding agent be configured between outer-skin sheet 51 and inner layer piece 52.In addition, exterior body 5 leans on the position of laterally (Y-direction) central authorities in the end winding support portion 57 than ventral region A and has a pair absorbent main body side fixed part 58,58 in the position overlapping with the both sides of the length direction along absorbent main body 10 (X-direction) in the A of ventral region, and outer-skin sheet 51 and inner layer piece 52 are fixed by the bonding agent be configured between outer-skin sheet 51 and inner layer piece 52 by it.Similarly, exterior body 5 leans on the position of laterally (Y-direction) central authorities in the end winding support portion 57 than dorsal part region B and has a pair absorbent main body side fixed part 58,58 in the position overlapping with the both sides of the length direction along absorbent main body 10 (X-direction) in the B of dorsal part region, and outer-skin sheet 51 and inner layer piece 52 are fixed by the bonding agent be configured between outer-skin sheet 51 and inner layer piece 52 by it.

And, as shown in Figure 2 to 4, at ventral region A and dorsal part region B, many the first elastomeric elements 531 being positioned at the position leaning on longitudinally (X-direction) outside than the two ends of the longitudinal direction (X-direction) of absorbent main body 10 in many first elastomeric elements 531, are fixed in outer-skin sheet 51 and inner layer piece 52 by pair of end portions fixed part 57,57.Be positioned at many first elastomeric elements 531 outside this in the region except pair of end portions fixed part 57,57, be not fixed in outer-skin sheet 51 and inner layer piece 52.In addition, at ventral region A and dorsal part region B, many the first elastomeric elements 531 being positioned at the part overlapping with the both ends of the longitudinal direction of absorbent main body 10 (X-direction) in many first elastomeric elements 531, are fixed on outer-skin sheet 51 and inner layer piece 52 by pair of end portions fixed part 57,57 and a pair absorbent main body side fixed part 58,58.In diaper 1, be positioned at many first elastomeric elements 531 of the part overlapping with the both ends of this absorbent main body 10, the region between each end winding support portion 57 and each absorbent main body side fixed part 58, is not fixed on outer-skin sheet 51 and inner layer piece 52.Further, many first elastomeric elements 531 being positioned at the part overlapping with the both ends of this absorbent main body 10, in the region clipped by a pair absorbent main body side fixed part 58,58, are fixed on outer-skin sheet 51 and inner layer piece 52 by bonding agent.

In addition, as shown in Figure 2 to 4, at ventral region A and dorsal part region B, many second elastomeric elements 532 are fixed on outer-skin sheet 51 and inner layer piece 52 by pair of end portions fixed part 57,57 and a pair absorbent main body side fixed part 58,58.In addition, in diaper 1, many second elastomeric elements 532, by the surperficial bonding agent using comb shape spray gun to be coated in the surface of elastomeric element, are fixed on outer-skin sheet 51 and inner layer piece 52 in transverse direction (Y-direction) whole region.

In addition, as shown in Figure 2 to 4, at ventral region A, many articles of the 3rd elastomeric elements 533 are fixed on outer-skin sheet 51 and inner layer piece 52 by a pair absorbent main body side fixed part 58,58.In addition, in diaper 1, many articles of the 3rd elastomeric elements 533, by the surperficial bonding agent using comb shape spray gun to be coated in the surface of elastomeric element, are fixed on outer-skin sheet 51 and inner layer piece 52 in transverse direction (Y-direction) whole region.

The exterior body 5 of diaper 1 is in the region overlapping with absorbent main body 10, and each elastomeric element 53 is slightly cut off separately in multiple cutting portion 59, and the Telescopic of this elastomeric element 53 reduces.Specifically, be configured at a part for many articles of first elastomeric elements 531 in the region overlapping with absorbent main body 10, many articles of the second elastomeric elements 532 and many articles of the 3rd elastomeric elements 533, each is pressed under the heat-sealing of outer-skin sheet 51 in point-like in the position of multiple cutting portion 59, and be cut off by the heat-sealing of point-like, reduce the contractile function of elastomeric element.Like this, cutting portion 59 enforcement heat embossing is processed and is passed through heat and cut off by elastomeric element 53 and formed.As the processing forming cutting portion 59, heat embossing can also be replaced to process and adopt laser etc.

Banded bonding agent 54, the 54 interval W1 each other (with reference to Fig. 4) adjacent in longitudinal direction (X-direction) is not particularly limited with the relation of the length L1 of the longitudinal direction of each cutting portion 59, but not easily miss from the opening of cutting portion 59 from the viewpoint of by the elastomeric element 53 after slightly cutting off, adjacent banded bonding agent 54,54 interval W1 is each other preferably short than the length Ll of the longitudinal direction of each cutting portion 59.From the same viewpoint, the length L1 of the longitudinal direction of each cutting portion 59 is preferably more than 1mm below 15mm, more preferably more than 1.5mm below 10mm.

As previously discussed, many articles of the second elastomeric elements 532 and many articles of the 3rd elastomeric elements 533 are reduced Telescopic by slightly cutting off separately in the region overlapping with absorbent main body 10.Therefore, as the second Hookean region T2 and the 3rd Hookean region T3 of stretching region ET, be formed at the position leaning on laterally (Y-direction) outside than the both sides of (X-direction) along the longitudinal of absorbent main body 10.Specifically, as shown in Figure 4, in diaper 1, the major part of the first Hookean region T1 is formed as showing retractility between pair of end portions fixed part 57,57.And, the part of the remaining local in the first Hookean region Tl, the second Hookean region T2 and the 3rd Hookean region T3, in the both sides of (X-direction) along the longitudinal than absorbent main body 10 by horizontal (Y-direction) outside performance retractility, be difficult to show retractility in the part overlapping with absorbent main body 10, be formed as the state cut-off in the left and right of diaper 1.

The formation material in each portion of above-mentioned diaper 1 is described.

As forming the positive dough sheet 2 of absorbent main body 10, back sheet 3, absorber 4 and side pad 6 etc., being not particularly limited, current the used various materials etc. of the absorbent commodities such as disposable diaper can be used.Such as, as positive dough sheet 2, the non-woven fabrics that single or multiple lift can be used to construct or apertured film etc.The resin molding etc. of poisture-penetrability can be used as back sheet 3.As absorber 4, can use and utilize the coated material comprising the particle of absorbable polymer and the absorbent cores of fibrous material of cotton paper.In addition, as side pad 6, the non-woven fabrics etc. that the single or multiple lift of water proofing property constructs can be used.

As the outer-skin sheet 51 and the inner layer piece 52 that form exterior body 5, the single-layer nonwoven or two-layer above stacked non-woven fabrics etc. that are made up of spun-bonded non-woven fabrics, hot-wind nonwoven cloth, hot-rolling non-woven fabrics, spun-laced nonwoven fabric, melt spraying non-woven fabrics etc. can be used.Further, outer-skin sheet 51 and inner layer piece 52 also can use different sheet material.

As elastomeric element (three-dimensional gauffer formation elastomeric element 61, elastomeric element 53 etc.), such as, can enumerate: the synthetic rubber such as styrene butadiene, butadiene, isoprene, neoprene, natural rubber, EVA, expandable polyolefin hydrocarbon, polyurethane etc.As the form of elastomeric element, preferably can use that cross section is rectangle, the material of the wire (rubber covered wire etc.) of square, circle, ellipse or polygon etc. or banded (rubber strip etc.), or the material etc. of the wire of multifilament wire type.Especially elastomeric element 53, from the viewpoint of the non-adhesive region of reducing the bonding region of the banded bonding agent of use that viewpoint and expanding that the part of elastomeric element improves flexibility and outward appearance is made up of adhesive portion and non-bonded part, preferably uses rubber covered wire.

As banded bonding agent 54, the bonding agent forming the fixing outside fixed area 57 of each parts and the bonding agent of main body side fixed area 58 and fixing exterior body 5 and absorbent main body 10 etc., be not particularly limited, current the used various hot-melt adhesives etc. of the absorbent commodities such as disposable diaper can be used.

Side seal portion S is after formation exterior body weld portion 56, making the end winding support portion 57 of the end winding support portion 57 of A side, ventral region and B side, dorsal part region overlapping, being formed by implementing heat embossing processing to this part.In addition, as the processing forming side seal portion S, heat embossing can also be replaced to process and use ultrasonic sealing function, laser etc.

Action effect when using above-mentioned diaper 1 is described.

As shown in Figure 4, the exterior body 5 of diaper 1 has stretching region ET (the second Hookean region T2 and the 3rd Hookean region T3) at ventral region A, it is formed in the following manner, that is: the second elastomeric element 532 and the 3rd elastomeric element 533 is configured intermittently in longitudinal direction (X-direction), the banded bonding agent 54 of more than 1 article is all configured with each other, via banded bonding agent 54 fixed outer layer sheet 51 and inner layer piece 52 at the second elastomeric element 532,532 each other with three elastomeric element 533,533 that longitudinal direction (X-direction) is adjacent.In addition, the exterior body 5 of diaper 1 has stretching region ET (the second Hookean region T2) at dorsal part region B, it is formed in the following manner, that is: the second elastomeric element 532 is configured intermittently in longitudinal direction (X-direction), the banded bonding agent 54 of more than 1 is all configured with each other, via banded bonding agent 54 fixed outer layer sheet 51 and inner layer piece 52 at upper the second adjacent elastomeric element 532,532 of longitudinal direction (X-direction).According to forming the elastomeric element 53 of exterior body 5 and the configuration relation of banded bonding agent 54 like this, as shown in Figure 5, at upper adjacent such as the second elastomeric element 532,532 of longitudinal direction (X-direction) each other, all via multi-ribbon shape bonding agent 54 fixed outer layer sheet 51 and inner layer piece 52, at the upper adjacent banded bonding agent 54,54 of longitudinal direction (X-direction) each other, be all easy to form many pleats 51f, 52f extending continuously along the second elastomeric element 532.Specifically, shunk by the elastomeric element 53 configured with elongation state in transverse direction (Y-direction) be configured between outer-skin sheet 51 and inner layer piece 52, at upper adjacent such as the second elastomeric element 532 of each longitudinal direction (X-direction), 532 each other, longitudinally (X-direction) upper adjacent banded bonding agent 54, 54 each other, the mode all heaved outside thickness direction with outer-skin sheet 51 and inner layer piece 52 is out of shape, at the upper adjacent banded bonding agent 54 of longitudinal direction (X-direction), 54 produce the pleat 51f be made up of outer-skin sheet 51 or inner layer piece 52 each other, 52f, and at two sheets 51, the hollow bulb 50 will surrounded by pleat 51f and pleat 52f is formed around between 52.In addition, the 3rd elastomeric element 533,533 each other too.Therefore, it is possible to improve the flexibility of exterior body 5 further, improve outward appearance.In addition, the breathability of exterior body 5, skin sense of touch are also improved.

In addition, the exterior body 5 of diaper 1, as shown in Figure 3, Figure 4, at the first Hookean region T1, many the first elastomeric element 531 configures with the state of extending in transverse direction (Y-direction) in the mode not by multiple exterior body weld portion 56, and be fixed between outer-skin sheet 51 and inner layer piece 52 with the both ends of the first elastomeric element 531 of elongation state configuration, as shown in Figure 6, outer-skin sheet 51 and each self-forming of inner layer piece 52 throughout this many elastomeric elements 531 ground at many pleats 51f1,52f1 that longitudinal direction (X-direction) extends continuously.Specifically, at the first Hookean region T1 of diaper 1, as shown in Figure 6, shunk by the first elastomeric element 531 configured with elongation state in transverse direction (Y-direction) between outer-skin sheet 51 and inner layer piece 52, by adjacent in transverse direction (Y-direction), the row of the weld portion that the multiple exterior body weld portion 56 forming row in longitudinal direction (X-direction) are formed outer-skin sheet 51 each other and inner layer piece 52 are out of shape in the mode heaved outside thickness direction, the pleat 51f1 be made up of outer-skin sheet 51 or inner layer piece 52 is produced each other at the row of the adjacent described weld portion of transverse direction (Y-direction), 52f1, and at two sheets 51, formed between 52 around by the hollow bulb 50A of pleat 51f1 and pleat 52f1 encirclement.And hollow bulb 50A is formed as throughout many elastomeric elements 531 configured with elongation state in transverse direction (Y-direction) and extends continuously in longitudinal direction (X-direction).Therefore, it is possible to improve the breathability of exterior body 5, improve outward appearance.

In addition, as shown in Figure 3, Figure 4, each is slightly cut off the exterior body 5 of diaper 1 in the region overlapping with absorbent main body 10 for many articles of the second elastomeric elements 532 and many articles of the 3rd elastomeric elements 533, reduces Telescopic.Therefore, both sides than (X-direction) along the longitudinal of absorbent main body 10 are formed at by the position in horizontal (Y-direction) outside as the second Hookean region T2 of stretching region ET and the 3rd Hookean region T3.Like this, because the second Hookean region T2 and the 3rd Hookean region T3 is formed at the position leaning on laterally (Y-direction) outside than the both sides of (X-direction) along the longitudinal of absorbent main body 10, so improve the fit around buttocks and lower limb, and be easy to improve skin sense of touch.

In addition, the exterior body 5 of diaper 1, at upper the second adjacent elastomeric element 532,532 each other with three elastomeric element 533,533 of longitudinal direction (X-direction) each other, all via multi-ribbon shape bonding agent 54 fixed outer layer sheet 51 and inner layer piece 52, at the upper adjacent banded bonding agent 54,54 of longitudinal direction (X-direction) each other, be all easy to form many articles of pleats 51f, 52f (with reference to Fig. 5) of extending continuously along the second elastomeric element 532 and the 3rd elastomeric element 533.And, in diaper 1, at stretching region (the second Hookean region T2 and the 3rd Hookean region T3), the further fixed outer layer sheet 51 of the surperficial bonding agent via the surface being configured at elastomeric element 53 and inner layer piece 52.Like this, when the further fixed outer layer sheet 51 of the surperficial bonding agent via the surface being configured at the second elastomeric element 532 and inner layer piece 52, the second elastomeric element 532 and and the adjacent banded bonding agent 54 of this second elastomeric element 532 between, be also easy to form the pleat extended continuously along the second elastomeric element 532.The 3rd elastomeric element 533 surface configuration surface bonding agent situation too.Therefore, according to this formation, the flexibility of exterior body 5 can be improved further, improve outward appearance further.

From the viewpoint of reliably showing above-mentioned effect further, preferably there is following formation.

At least one in preferred outer-skin sheet 51 and inner layer piece 52, its fibre orientation forming fiber is consistent with the configuration direction of banded bonding agent 54.Specifically, in diaper 1, banded bonding agent 54 is extended in the transverse direction (Y-direction) as coating direction, the fibre orientation of the formation fiber of at least one in outer-skin sheet 51 and inner layer piece 52 be laterally (Y-direction) time, shunk by elastomeric element 53, at the upper adjacent banded bonding agent 54,54 of longitudinal direction (X-direction) each other, outer-skin sheet 51 and inner layer piece 52 are out of shape in the mode heaved further outside thickness direction.Therefore, pleat 51f, 52f (with reference to Fig. 5) of being made up of outer-skin sheet 51 or inner layer piece 52 is easily produced each other at the upper adjacent banded bonding agent 54,54 of longitudinal direction (X-direction), between two sheets 51,52, be easy to form the hollow bulb 50 fenced up by pleat 51f and pleat 52f around.Therefore, it is possible to improve the flexibility of exterior body 5 further, improve outward appearance.

Preferred embodiment be illustrated based on it for this utility model (the first utility model) above, but this utility model (the first utility model) is not restricted to above-mentioned embodiment, can suitably change.

Such as, above-mentioned disposable diaper 1 be exterior body 5 as shown in Figure 2 and Figure 3 for being the Breeches type disposable diaper of the continuous print shape such as hourglass-shaped on the whole at ventral region A, crotch region C and dorsal part region B, also can be the Breeches type disposable diaper that exterior body 5 is divided into the Splittable as the veutro exterior body of individual components, dorsal part exterior body and crotch exterior body.

In addition, also can be the disposable diaper of deploying type as described below, that is: exterior body 5 is formed as at ventral region A, crotch region C and dorsal part region B is the continuous print shape such as hourglass-shaped on the whole, be provided with a pair pull stap in the edge, the left and right sides of dorsal part region B, be provided with at the non-skin opposite face of ventral region A and taking of this pull stap set is with.In addition, it can also be the disposable diaper of deploying type as described below, that is: exterior body 5 is formed as ventral region A, crotch region C and dorsal part region B being the continuous print shapes such as rectangle, be separately installed with the flank sheet extended to lateral outer side in the edge, the left and right sides of dorsal part region B, in the lateral outer side of this flank sheet, pull stap be installed.When the disposable diaper of such deploying type, the outer-skin sheet 51 forming exterior body 5 is formed by non-woven fabrics, form the inner layer piece 52 of exterior body 5 to be formed by the resin molding of poisture-penetrability, between this non-woven fabrics and this resin molding, configure elastomeric element 53 and banded bonding agent 54 and form exterior body 5.

In addition, in above-mentioned disposable diaper 1, as shown in Figure 3, Figure 4, stretching region ET is formed at the second Hookean region T2 and the 3rd Hookean region T3, and be formed at the region leaning on laterally (Y-direction) outside than the both sides of (X-direction) along the longitudinal of absorbent main body 10, but be not limited to these positions, also can be formed at other regions.

In addition, in above-mentioned disposable diaper 1, as shown in Figure 4, at upper the second adjacent elastomeric element 532,532 of longitudinal direction (X-direction) each other, all be configured with 2 ribbon bonding agents 54, at upper the 3rd adjacent elastomeric element 533,533 of longitudinal direction (X-direction) each other, be all configured with 2 ribbon bonding agents 54, but may not be and configure equably, as long as configuration more than 1.

In addition, in above-mentioned disposable diaper 1, as shown in Figure 3, in the region overlapping with absorbent main body 10, in multiple cutting portion 59, each is slightly cut off each elastomeric element 53, but also can not be cut off.

In addition, in above-mentioned disposable diaper 1, on the surface of the surface of the second elastomeric element 532 or the 3rd elastomeric element 533, comb shape spray gun is used to be coated with surperficial bonding agent, but also can not coated surfaces bonding agent.

In addition, in the relation of the pitch of elastomeric element and the pitch of banded bonding agent, both also can be overlapping partly.

Below, be preferred embodiment described with reference to accompanying drawing based on it for this utility model (the second utility model).The Breeches type disposable diaper 1A of first embodiment of this utility model (the second utility model) is (hereinafter also referred to as " diaper 1A ".) as shown in Fig. 7 ~ Figure 10, comprising: the absorbent main body 10 of lengthwise, its have the positive dough sheet 2 of liquid permeability, the difficult permeability of liquid back sheet 3, be configured at absorber 4 between these two sheets 2,3; With exterior body 5, it is configured at the non-skin opposite face side of absorbent main body 10.Specifically, the exterior body 5 of diaper 1A overlook make it launch and the state of extending time, be divided into the ventral region A of the veutro being configured at wearer when wearing, be configured at crotch region C between the dorsal part region B of the dorsal part of wearer and ventral region A and dorsal part region B when wearing.Diaper 1A is that edge, both sides 5b1, the 5b1 of dorsal part region B in edge, both sides 5a1, the 5a1 of ventral region A in exterior body 5 and exterior body 5 engages, and forms the so-called Breeches type disposable diaper of a pair side seal portion S, S, waist opening portion WO and a pair leg opening part LO, LO.

In this manual, towards the face of the skin side of wearer when so-called " skin opposite face " refers to wearing of diaper 1A or its component parts (such as absorbent main body 10), towards the face of the opposition side (side of wearing the clothes) of the skin side of wearer when so-called " non-skin opposite face " refers to wearing of diaper 1A or its component parts.In diaper 1A, longitudinally (X-direction) with along diaper 1A or the direction as the long limit of the absorbent main body 10 of the lengthwise of its component parts consistent, transverse direction (Y-direction) is consistent with Breeches type disposable diaper or the width as the absorbent main body 10 of its component parts.

In addition, diaper 1A is for the upper symmetrical shape of vertical centre line C L 1 extended of longitudinal direction (X-direction).Further, the CL2 in Fig. 8, Figure 10 is the upper horizontal centrage extended of transverse direction (Y-direction) be divided into two by diaper 1A, orthogonal with vertical centre line C L 1.

What is called makes above-mentioned diaper 1A launch and the state of extending, as shown in Fig. 8, Figure 10, side seal portion S is meant to tear, make diaper 1A become deployed condition, the elastomeric element in each portion is stretched and the diaper lA of this deployed condition is extended to become the state of design size (measure-alike with when expanding to plane under the state impact of elastomeric element got rid of completely).

Absorbent main body 10 has the shape of the relatively long lengthwise in a direction (longitudinally (X-direction)) as shown in Figure 8.Absorbent main body 10 comprise the liquid permeability forming skin opposite face positive dough sheet 2, form the back sheet 3 of the difficult permeability (also comprising water-repellancy) of liquid of non-skin opposite face, be clipped in the absorber 4 of the liquid retainability between these two sheets 2,3.In addition, in the both sides of (X-direction) along the longitudinal of absorbent main body 10, as shown in Figure 8, the side pad 6,6 had with the elastomeric element in the upper state configuration stretched of longitudinal direction (X-direction) is provided with.Specifically, side pad 6 by liquid impermeability or water-repellancy and the material of breathability form, three-dimensional gauffer formation elastomeric element 61 is to be configured near the free end of each side pad 6 in the upper state stretched of longitudinal direction (X-direction).When wearing diaper, by the contraction of three-dimensional gauffer formation elastomeric element 61, edge-on of the free end of side pad 6, becomes so-called three-dimensional gauffer, stops body fluid to flow out to transverse direction (Y-direction).

Absorber 4, in diaper 1A, as shown in Figure 9, has and comprises the absorbent core 40 of water absorbent polymer and the clad sheet 45 of coated absorbent core 40.The upper and lower surface (skin opposite face, non-skin opposite face) of the coated absorbent core 40 of clad sheet 45.In addition, absorbent core 40 has the few non-long-pending fine portion of the formation material (core formation material) of absorbent core.This non-long-pending fine portion overlook make diaper 1A launch and extend state time, be formed extended at both sides in the longitudinal direction (X-direction) of diaper 1A.Specifically, the absorbent core 40 of diaper 1A as shown in Figure 8, Figure 9, has high grammes per square metre portion 41 at transverse direction (Y-direction) central part of crotch region C, has the low grammes per square metre portion 42 that grammes per square metre is low compared with high grammes per square metre portion 41 in the both sides in high grammes per square metre portion 41.High grammes per square metre portion 41 extends along the vertical centre line C L 1 of diaper 1A.The absorbent core 40 of diaper 1A as shown in Figure 8, have A side, ventral region wider than dorsal part region B width overlook time upper absorbent layer 411 in roughly T-shaped and the lower absorbent layer 412 of the size of longitudinally (X-direction) and laterally (Y-direction) rectangle larger than upper absorbent layer 411, the part that lower absorbent layer 412 is laminated with upper absorbent layer 411 becomes high grammes per square metre portion 41, lower absorbent layer 412 does not have the part of stacked upper absorbent layer 411 become low grammes per square metre portion 42.Upper absorbent layer 411 is configured at the position of the crotch region C to ventral region A from diaper 1A, and upper absorbent layer 411 and high grammes per square metre portion 41 go width all to expand (cumulative) towards ventral region A near transverse direction (Y-direction) central part of crotch region C.Lower absorbent layer 412 is vertical wears crotch region C until ventral region A and dorsal part region B.

The non-long-pending fine portion of absorbent core 40 as shown in Figure 8, Figure 9, has non-long-pending fine portion 43 of central authorities at transverse direction (Y-direction) central part of crotch region C, and non-long-pending fine portion 43 of central authorities is formed extended at both sides in longitudinal direction (X-direction).Specifically, non-long-pending fine portion 43 of the central authorities of absorbent core 40 be formed as in diaper 1A grammes per square metre than high grammes per square metre portion 41 and low grammes per square metre portion 42 all low.The non-long-pending fine portion of absorbent core 40 is in diaper 1A, at transverse direction (Y-direction) central part in high grammes per square metre portion 41, except there is non-long-pending fine portion 43 of the central authorities extended in longitudinal direction (X-direction), there is in each low grammes per square metre portion 42,42 sidepiece non-long-pending fine portion 44,44 separately.The non-long-pending fine portion 44 of sidepiece is formed at the position by upper absorbent layer 411 (high grammes per square metre portion 41) between the lateral margin extended in longitudinal direction (X-direction) of the lateral margin extended in longitudinal direction (X-direction) of upper absorbent layer 411 (high grammes per square metre portion 41) and lower absorbent layer 412 (low grammes per square metre portion 42).In addition, the non-long-pending fine portion 44 of sidepiece extends along the lateral margin of upper absorbent layer 411 (high grammes per square metre portion 41) in longitudinal direction (X-direction).

The non-long-pending fine portion 43 of central authorities of absorbent core 40 and the non-long-pending fine portion of a counter-lateral quadrents 44,44 described above, grammes per square metre than high grammes per square metre portion 41 and low grammes per square metre portion 42 all low, be the openings that there is not the material (core formation material) forming absorbent core completely in diaper 1A, but the core of the amount fewer than low grammes per square metre portion 42 forms material exist a little (20g/m ²degree) when, also can obtain same effect, so be included in non-long-pending fine portion.

The non-long-pending fine portion 43 of central authorities of diaper 1A as shown in Figure 8, Figure 9, is formed with the openings of the long rectangle of both longitudinal direction (X-direction) through in upper absorbent layer 411 and lower absorbent layer 412.Through upper absorbent layer 411 and the openings both lower absorbent layer 412, such as upper absorbent layer 411 and lower absorbent layer 412 can be fabricated to the parts separately with openings, the mode overlapped each other with both openings by two absorbed layers is afterwards formed stackedly.Also can replace it, upper absorbent layer 411 and lower absorbent layer 412 are fabricated to the parts separately without openings, afterwards its separately on form openings, the mode then overlapped each other with both openings by two absorbed layers is formed stackedly.Upper absorbent layer 411 and lower absorbent layer 412 can also be fabricated to the parts separately without openings, afterwards that two absorbed layers are overlapping, then form both openings through.

Non-long-pending fine portion 43 of central authorities in diaper 1A and the non-long-pending fine portion 44,44 of a counter-lateral quadrents are as shown in Figure 8, A side, ventral region in the longitudinal direction (X-direction) of absorbent core 40, the A side, ventralward region, position of end 44a, 44a that the long-pending fine portion 44 more non-than sidepiece, position of end 43a in non-long-pending fine portion 43 of central authorities is respective is extended, B side, dorsal part region in the longitudinal direction (X-direction) of absorbent core 40, side region B side of supporting or opposing, the position of the position of end 44b, 44b that the non-long-pending fine portion 44 of sidepiece the is respective end 43b in long-pending fine portion 43 more non-than central authorities is respectively extended.In addition, the end 43a in non-long-pending fine portion 43 of central authorities does not have extended to the position corresponding with side seal portion S as shown in Figure 8 in diaper 1A.

The absorbent main body 10 with the absorber 4 as formed in the above described manner make its longitudinally (X-direction) with to launch and the longitudinal direction (X-direction) of the diaper 1A of elongation state is consistent, be engaged in the central part of exterior body 5 by bonding agent.Like this, exterior body 5 is configured at the non-skin opposite face side of the back sheet 3 of the formation absorbent main body 10 on the thickness direction of Breeches type disposable diaper 1A and is adhesively secured.

Exterior body 5 comprises as shown in Figure 10: the outer-skin sheet 51 forming the non-skin opposite face side of the outer surface of diaper 1A; The inner layer piece 52 of skin opposite face side; Between outer-skin sheet 51 and inner layer piece 52 with respective along a pair leg opening part LO, LO curve-like ground many leg elastic members 55 of configuring of the state of extending; With many leg bonding agents 7 of fixed leg elastomeric element 55.Specifically, in diaper 1A, exterior body 5 has an inner layer piece 52 of the skin opposite face side of an outer-skin sheet 51 of the non-skin opposite face side of the outer surface forming diaper 1A and the inner surface of formation diaper 1A.Outer-skin sheet 51 and inner layer piece 52, in longitudinal direction (X-direction) central part shrinking to the inside, are formed as mutual same shape formed objects.And, between outer-skin sheet 51 and inner layer piece 52, be configured with many elastomeric elements 53 and leg elastic members 55.

Be described in detail to the leg elastic members 55 of diaper 1A, the state that leg elastic members 55 is extended with the shrinking portion of the central part along outer-skin sheet 51 and inner layer piece 52 as shown in Fig. 8 ~ Figure 10 between outer-skin sheet 51 and inner layer piece 52 configures.The leg elastic members 55 of diaper 1A comprises: many veutro leg elastic members 551, it from one of A side, ventral region (in the first embodiment, left side for Figure 10) leg opening part LO rises by crotch region C until another (in the first embodiment, being the right side of Figure 10) leg opening part LO of A side, ventral region configures with extended configuration; With many dorsal part leg elastic members 552, it from one of B side, dorsal part region (in the first embodiment, left side for Figure 10) leg opening part LO rises by crotch region C until another (in the first embodiment, being the right side of Figure 10) leg opening part LO of B side, dorsal part region configures with extended configuration.And veutro leg elastic members 551 and dorsal part leg elastic members 552 are cut off at transverse direction (Y-direction) central part (comprising the position of vertical centre line C L 1) of crotch region C.Veutro leg elastic members 551 and dorsal part leg elastic members 552, be configured with intermittently along the shrinking portion of leg opening part LO in veutro 1 ~ 10 (being 3 in the diaper 1A of the first embodiment), be configured with intermittently along the shrinking portion of leg opening part LO in dorsal part 1 ~ 10 (being 3 in the diaper 1A of the first embodiment), utilize leg bonding agent 7 to be fixed.

By many veutro leg elastic members 551 are cut off, many veutro leg elastic members 551 as shown in Figure 10, Figure 11, in the A side, ventral region of (left side of a Figure 10) leg opening part LO (shrinking portion), be configured to have the curve shape that A side, mode ventralward region is convex and side region B side of supporting or opposing is convex of flex point 5P1.And, by the contraction of veutro leg elastic members 551, become the gauffer forming portion 51a configured along leg opening part LO (shrinking portion) and the gauffer extended from this gauffer forming portion 51a towards vertical centre line C L 1 formation extension 51b.Another (right side of Figure 10) leg opening part LO (shrinking portion) A side, ventral region too, the curve shape that the A side, mode ventralward region that many veutro leg elastic members 551 are configured to have flex point 5P1 is convex and side region B side of supporting or opposing is convex.And, by the contraction of veutro leg elastic members 551, become the gauffer forming portion 51a configured along leg opening part LO (shrinking portion) and the gauffer extended from this gauffer forming portion 51a towards vertical centre line C L 1 formation extension 51b.At this, so-called flex point 5P1 refer to overlook diaper 1A is launched and the state of extending time, to be in 1 veutro leg elastic members 551 of central authorities in many veutro leg elastic members 551 for benchmark, from the shape convex towards A side, ventral region to the boundary point of the change of shape convex towards B side, dorsal part region.In addition, when many veutro leg elastic members 551 are even number bar, suppose the imaginary veutro leg elastic members of the track of the centre had through 2 the veutro leg elastic members 551,551 being in central authorities, using this imaginary veutro leg elastic members as benchmark.

In addition, by many dorsal part leg elastic members 552 are cut off, same with veutro leg elastic members 551, many dorsal part leg elastic members 552 are as shown in Figure 10 in the B side, dorsal part region of (left side of a Figure 10) leg opening part LO (shrinking portion), and the mode being configured to have flex point 5P2 supports or opposes the curve shape that side region B side is convex and A side, ventralward region is convex.And, by the contraction of dorsal part leg elastic members 552, become the gauffer forming portion 52a configured along leg opening part LO (shrinking portion) and the gauffer extended from this gauffer forming portion 52a towards vertical centre line C L 1 formation extension 52b.Another (right side of Figure 10) leg opening part LO (shrinking portion) B side, dorsal part region too, the mode that many dorsal part leg elastic members 552 are configured to have flex point 5P2 supports or opposes the curve shape that side region B side is convex and A side, ventralward region is convex.And, by the contraction of dorsal part leg elastic members 552, become the gauffer forming portion 52a configured along leg opening part LO (shrinking portion) and the gauffer extended from this gauffer forming portion 52a towards vertical centre line C L 1 formation extension 52b.Herein, so-called flex point 5P2, same with flex point 5P1, refer to overlook make diaper 1A launch and extend state time, to be in 1 dorsal part leg elastic members 552 of central authorities in many dorsal part leg elastic members 552 for benchmark, from the shape convex towards B side, dorsal part region to the boundary point of the change of shape convex towards A side, ventral region.In addition, when many dorsal part leg elastic members 552 are even number bar, be that the situation of even number bar is identical with above-mentioned many veutro leg elastic members 551, suppose the imaginary dorsal part leg elastic members of the track of the centre had through 2 the dorsal part leg elastic members 552,552 being in central authorities, using this imaginary dorsal part leg elastic members as benchmark.

In diaper 1A, by the gauffer forming portion 51a of the A side, ventral region configured along (left side of a Figure 10) leg opening part LO (shrinking portion) and the gauffer forming portion 52a of B side, dorsal part region, perimeter closure along leg opening part LO is ring-type, then forms by gauffer the leg elastic region (leg creases) that extension 51b, 52b form the shape of extending towards vertical centre line C L l from each gauffer forming portion 51a and gauffer forming portion 52a.Similarly, in diaper 1A, be ring-type by the gauffer forming portion 51a of the A side, ventral region configured along another (right side of Figure 10) leg opening part LO (shrinking portion) and the gauffer forming portion 52a of B side, dorsal part region along the perimeter closure of leg opening part LO, then form by gauffer the leg elastic region (leg creases) that extension 51b, 52b form the shape of extending towards vertical centre line C L 1 from each gauffer forming portion 51a and gauffer forming portion 52a.

The leg of fixed leg elastomeric element 55 with bonding agent 7 as shown in Figure 10, Figure 11, overlook make diaper 1A launch and extend state time, the region LT being configured with many leg elastic members 55 in longitudinal direction (X-direction), is configured with many along transverse direction (Y-direction).That is, each leg bonding agent 7 is configured on the whole width of the diaper 1A parallel with transverse direction (Y-direction), and many leg bonding agents 7 are applied as striated.And many leg bonding agents 7 configure in upper adjacent leg bonding agent 7,7 mode being spaced apart two or more different interval each other of longitudinal direction (X-direction).Below, specifically, upper adjacent leg bonding agent 7,7 interval each other of longitudinal direction (X-direction) is described.

Upper adjacent leg bonding agent 7,7 interval each other of longitudinal direction (X-direction) in many leg bonding agents 7 of configuration near the part that the curvature (1/ radius of curvature) of leg elastic members 55 is high, upper adjacent leg bonding agent 7,7 interval each other of longitudinal direction (X-direction) be configured in many leg bonding agents 7 of configuration near the part lower than the curvature (1/ radius of curvature) in leg elastic members 55 is narrow.At this, the part that the curvature (1/ radius of curvature) of so-called leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552) is high, be equivalent to the region (region overlapping with side seal portion S in veutro leg elastic members 551) extending to side seal portion S towards side seal portion S bending in veutro leg elastic members 551, the region (region overlapping with side seal portion S in dorsal part leg elastic members 552) extending to side seal portion S towards side seal portion S bending in dorsal part leg elastic members 552, with the region that veutro leg elastic members 551 is intersected with dorsal part leg elastic members 552.In addition, the part that the curvature (1/ radius of curvature) of so-called leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552) is low, in veutro leg elastic members 551, region between the region being equivalent to the region overlapping with side seal portion S in veutro leg elastic members 551 and intersect with dorsal part leg elastic members 552, in dorsal part leg elastic members 552, be equivalent to the region overlapping with side seal portion S in dorsal part leg elastic members 552 and region between the region intersected with veutro leg elastic members 551.

In the part that the described curvature (1/ radius of curvature) of leg elastic members 55 is high, namely, in the region that the region overlapping with side seal portion S in veutro leg elastic members 551, the region overlapping with side seal portion S in dorsal part leg elastic members 552 and veutro leg elastic members 551 and dorsal part leg elastic members 552 are intersected, preferably this radius of curvature is more than 10mm below 150rnm degree.

About the region that many leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552) are overlapping with side seal portion S, as shown in figure 11, leg elastic members 55,55 interval D L each other that longitudinally (X-direction) upper adjacent described leg bonding agent interval D min is each other above more adjacent than longitudinally (X-direction) is narrow.And in diaper 1A, described adjacent described leg bonding agent interval D min each other goes up in adjacent described leg bonding agent interval each other the narrowest in longitudinal direction (X-direction).The ratio (Dmin/DL) of described adjacent described leg bonding agent interval D min each other adjacent leg elastic members 55,55 interval D L each other upper relative to described longitudinal direction (X-direction), fixing from the viewpoint of the high part of the curvature of reliably carrying out in leg elastic members 55, be preferably less than more than 0.05 0.5, more preferably less than more than 0.1 0.3.Specifically, from the same viewpoint, described adjacent described leg bonding agent interval D min each other, is preferably more than 0.5mm below 5mm, more preferably more than 1mm below 3mm.

The described leg bonding agent the narrowest interval D min each other of diaper 1A is described in detail, in the region that veutro leg elastic members 551 is overlapping with side seal portion S, as shown in figure 11, is formed with 6 interval D min by 7 leg bonding agents 7.In addition, in the region that veutro leg elastic members 551 is intersected with dorsal part leg elastic members 552, as shown in figure 11,4 interval D min are formed with by 5 leg bonding agents 7.And then, in the region that dorsal part leg elastic members 552 is overlapping with side seal portion S, as shown in Figure 10, be formed with 5 interval D min by 6 leg bonding agents 7.

Longitudinally the widest in (X-direction) upper adjacent leg bonding agent 7,7 interval each other interval D max, the region that comprise the flex point 5P1 of veutro leg elastic members 551 of preferred disposition in the region LTa being configured with many veutro leg elastic members 551, or be configured at the region comprising the flex point 5P2 of dorsal part leg elastic members 552 be configured with in the region LTb of many dorsal part leg elastic members 552, in diaper 1A, as shown in Figure 10, the region of the flex point 5P2 comprising dorsal part leg elastic members 552 is configured at.In addition, comprise the region of flex point 5P1 and comprise the region of flex point 5P2, being equivalent to the part that the curvature (1/ radius of curvature) of leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552) is low.

The described leg bonding agent the loosest interval D max each other of diaper 1A is described in detail, as shown in Figure 10, in the region of flex point 5P2 comprising dorsal part leg elastic members 552, is formed with 3 interval D max by 4 leg bonding agents 7.

In addition, longitudinally the widest in (X-direction) upper adjacent leg bonding agent 7,7 interval each other interval D max, in diaper 1A, as shown in Figure 10, is configured at the region being configured with non-long-pending fine portion in longitudinal direction (X-direction).Specifically, the loosest described interval D max of diaper 1A is configured to intersect with the region being configured with the non-long-pending fine portion with non-long-pending fine portion 43 of central authorities and the non-long-pending fine portion 44,44 of a counter-lateral quadrents.At least one non-long-pending fine portion that the loosest described interval D max of diaper 1A is preferably configured to central authorities in non-long-pending fine portion 43 and the non-long-pending fine portion 44,44 of a counter-lateral quadrents intersects, and is preferably configured to non-long-pending fine portion 43 and the non-long-pending fine portion 44,44 of a counter-lateral quadrents with central authorities further and all intersects.

And then longitudinally the widest in (X-direction) upper adjacent leg bonding agent 7,7 interval each other interval D max, in diaper 1A, as shown in Figure 10, is configured at the region comprising horizontal centre line C L 2.Specifically, from the viewpoint of reduce bonding agent coating amount, improve pliability and feel, described adjacent described leg bonding agent the widest interval D max is each other preferably more than 0.5mm below 50mm, more preferably more than 1mm below 30mm.In addition, in diaper 1A, the region comprising horizontal centre line C L 2 is equivalent to the low part of the curvature (1/ radius of curvature) of leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552).

The leg bonding agent 7 of diaper 1A comprises many leg bonding agents 7 forming the loosest above-mentioned interval D max shown in Figure 10 and many leg bonding agents 7 forming the narrowest above-mentioned interval D min shown in Figure 11, in addition as shown in Figure 10, many leg bonding agents 7 of the interval D mid between interval D max the widest described in formation and the narrowest interval D min are also comprised.Like this, many leg bonding agents 7 of diaper 1A configure in the upper adjacent leg bonding agent 7,7 of longitudinal direction (X-direction) mode being spaced apart 3 kinds of different intervals each other.From the viewpoint of reduce bonding agent coating amount, improve pliability and feel, described adjacent described leg bonding agent interval D mid is each other preferably more than 0.5mm below 30mm, and preferred 1mm is above below 15mm further.

Leg bonding agent 7 such as uses coater to be applied to the skin opposite face of outer-skin sheet 51 or the non-skin opposite face of inner layer piece 52.

Then, the elastomeric element 53 of diaper 1A is described in detail, as shown in Fig. 8, Figure 10, at ventral region A and dorsal part region B, with from the ora terminalis becoming waist opening portion WO towards the mode of part at both ends of longitudinal direction (X-direction) comprising absorbent main body 10, be configured with 1 ~ 20 elastomeric elements 53 intermittently in longitudinal direction (X-direction) inner side.Specifically, at ventral region A and the dorsal part region B of diaper 1A, between the outer-skin sheet 51 forming exterior body 5 and inner layer piece 52, be configured with many elastomeric elements 53 in transverse direction (Y-direction) with elongation state, form stretching region ET thus.Longitudinally (X-direction) upper adjacent elastomeric element 53,53 interval is each other preferably more than 1mm below 20mm, more preferably more than 3mm below 10mm.

At stretching region ET, as shown in Fig. 8, Figure 10, between outer-skin sheet 51 and inner layer piece 52, be configured with the elastomeric element 53 of the state of extending in transverse direction (Y-direction) intermittently in longitudinal direction (X-direction).In addition, at the upper adjacent elastomeric element 53,53 of longitudinal direction (X-direction) each other, by the exterior body weld portion 56 configured intermittently in transverse direction (Y-direction), fixed partly between outer-skin sheet 51 and inner layer piece 52.By in the stretching region ET that fixes partly between such outer-skin sheet 51 and inner layer piece 52, many elastomeric elements 53 configure with elongation state in transverse direction (Y-direction) in the mode not by multiple exterior body weld portion 56.The mode that exterior body weld portion 56 forms string with (X-direction) along the longitudinal configures intermittently, and the transverse direction (Y-direction) that is listed in of the weld portion be made up of the plurality of exterior body weld portion 56 is formed with multiple row at spaced intervals.

Exterior body weld portion 56 is by outer-skin sheet 51 and inner layer piece 52 is overlapping, and heat embossing processing is implemented to this part and is formed.As heat embossing device, can use and there is knurling rolls and anvil roller, and there is at the outer peripheral face of its knurling rolls the device of the protuberance of the shape corresponding with the weld portion of exterior body weld portion 56.As the processing forming exterior body weld portion 56, heat embossing processing is replaced to adopt ultrasonic sealing function, laser etc.

Be described in detail further, the exterior body 5 of diaper 1A is as shown in Fig. 8, Figure 10, there is pair of end portions fixed part 57,57, it is positioned at edge, both sides 5a1,5a1 of ventral region A and edge, both sides 5b1,5bl of dorsal part region B, utilizes the bonding agent fixed outer layer sheet 51 and inner layer piece 52 that are configured between outer-skin sheet 51 and inner layer piece 52.In addition, exterior body 5 leans on the position of horizontal (Y-direction) central authorities in the end winding support portion 57 than ventral region A and the position overlapping with the both sides of alongst (X-direction) of absorbent main body 10 in the A of ventral region has a pair absorbent main body side fixed part 58,58, and it utilizes the bonding agent fixed outer layer sheet 51 and inner layer piece 52 that are configured between outer-skin sheet 51 and inner layer piece 52.Similarly, exterior body 5 leans on the position of horizontal (Y-direction) central authorities in the end winding support portion 57 than dorsal part region B and the position overlapping with the both sides of alongst (X-direction) of absorbent main body 10 in the B of dorsal part region has a pair absorbent main body side fixed part 58,58, and it utilizes the bonding agent fixed outer layer sheet 51 and inner layer piece 52 that are configured between outer-skin sheet 51 and inner layer piece 52.

And, as shown in Fig. 8, Figure 10, at ventral region A and dorsal part region B, be positioned at many elastomeric elements 53 of the position leaning on longitudinally (X-direction) outside than the two ends of the longitudinal direction (X-direction) of absorbent main body 10 in many elastomeric elements 53, be fixed on outer-skin sheet 51 and inner layer piece 52 at pair of end portions fixed part 57,57.This is positioned at many elastomeric elements 53 in outside, in the region except pair of end portions fixed part 57,57, is not fixed on outer-skin sheet 51 and inner layer piece 52.In addition, at ventral region A and dorsal part region B, be positioned at many elastomeric elements 53 of the part overlapping with the both ends of the longitudinal direction of absorbent main body 10 (X-direction) in many elastomeric elements 53, be fixed on outer-skin sheet 51 and inner layer piece 52 at pair of end portions fixed part 57,57 and a pair absorbent main body side fixed part 58,58.In diaper 1A, be positioned at many elastomeric elements 53 of the part overlapping with the both ends of this absorbent main body 10, in the region except pair of end portions fixed part 57 and a pair absorbent main body side fixed part 58, be not fixed on outer-skin sheet 51 and inner layer piece 52.

As shown in Figure 10, in the region overlapping with absorbent main body 10, by each elastomeric element 53, in multiple involution cutting portion 59, each is slightly cut off the exterior body 5 of diaper 1A, and the Telescopic of this elastomeric element 53 reduces.Specifically, be configured at a part for many elastomeric elements 53 in the region overlapping with absorbent main body 10, each is pressed under the heat-sealing of outer-skin sheet 51 in point-like in the position of multiple involution cutting portion 59, be cut off while fixing with outer-skin sheet 51 with the heat-sealing of point-like, reduce the contractile function of elastomeric element.Like this, the processing of involution cutting portion 59 enforcement heat embossing seals elastomeric element 53 and outer-skin sheet 51 and is cut off by elastomeric element 53 by heat and formed.As the processing forming involution cutting portion 59, heat embossing processing is replaced to adopt ultrasonic sealing function, laser etc.

The stretching region ET of the exterior body 5 of diaper 1A, as shown in Fig. 8, Figure 10, is formed as its major part and shows retractility between pair of end portions fixed part 57,57.And, in stretching region ET, remaining part shows retractility in the both sides of (X-direction) along the longitudinal than absorbent main body 10 by the position in horizontal (Y-direction) outside, be difficult to show retractility in the part overlapping with absorbent main body 10, be formed as the state of the left and right being split into diaper 1A.

The formation material in each portion of above-mentioned diaper 1A is described.

As forming the positive dough sheet 2 of absorbent main body 10, back sheet 3, absorber 4 and side pad 6 etc., being not particularly limited, current the used various materials of the absorbent commodities such as Breeches type disposable diaper can be used.Such as, as non-woven fabrics or apertured film etc. that positive dough sheet 2 can use single or multiple lift to construct.The resin molding etc. of poisture-penetrability can be used as back sheet 3.Can use as absorber 4 utilizes tissue paper by material coated for the absorbent cores that is made up of particle and the fibrous material of absorbable polymer.In addition, as the non-woven fabrics etc. that side pad 6 can use the single or multiple lift of water-repellancy to construct.

As the outer-skin sheet 51 and the inner layer piece 52 that form exterior body 5, the non-woven fabrics of monolayer or the stacked non-woven fabrics etc. of more than 2 layers that are made up of spun-bonded non-woven fabrics, hot-wind nonwoven cloth, hot-rolling non-woven fabrics, spun-laced nonwoven fabric, melt spraying non-woven fabrics etc. can be used.In addition, outer-skin sheet 51 and inner layer piece 52 can use different sheet materials.

As elastomeric element (three-dimensional gauffer formation elastomeric element 61, elastomeric element 53, leg elastic members 55 etc.), such as, can enumerate the synthetic rubber of styrene butadiene, butadiene, isoprene, neoprene etc., natural rubber, EVA, expandable polyolefin hydrocarbon, polyurethane etc.As the form of elastomeric element, the material of the wire (rubber covered wire etc.) such as cross section is rectangle, square, circle, ellipse or polygon or banded (rubber strip etc.) preferably can be used, or the material etc. of the wire of multifilament wire type.Particularly leg elastic members 55, from the viewpoint of the elastic response of the attractive in appearance of appearance and rubber covered wire, preferably uses rubber covered wire.

As leg bonding agent 7, the bonding agent forming the fixing outside fixed area 57 of each parts and the bonding agent of main body side fixed area 58 and fixing exterior body 5 and absorbent main body 10 etc., be not particularly limited, the various hot-melt adhesives etc. that the absorbent commodities such as Breeches type disposable diaper use at present can be used.

Side seal portion S is after formation exterior body weld portion 56, by overlapping for the end winding support portion 57 of the end winding support portion 57 of A side, ventral region and B side, dorsal part region, is formed by implementing heat embossing processing to this part.In addition, as the processing forming side seal portion S, heat embossing processing is replaced to adopt ultrasonic sealing function, laser etc.

Action effect when using above-mentioned diaper 1A is described.

Form many leg bonding agents 7 of the exterior body 5 of diaper 1A as shown in Figure 10, overlook make diaper 1A launch and extend state time, be applied as striated at the region LT being configured with many leg elastic members 55, many leg bonding agents 7 configure in upper adjacent leg bonding agent 7,7 mode being spaced apart two or more different interval each other of longitudinal direction (X-direction).Specifically, many leg bonding agents 7 are in diaper 1A, configure in the upper adjacent leg bonding agent 7,7 of longitudinal direction (X-direction) mode being spaced apart three kinds of different intervals each other, wherein three kinds of different interval D mid be spaced apart between above-mentioned most wide interval Dmax, the narrowest interval D min, most wide interval Dmax and the narrowest interval D min.Therefore, stably can be fixed on and form between the outer-skin sheet 51 of exterior body 5 and inner layer piece 52 with along the leg opening part LO curve-like ground leg elastic members 55 that configures of the state of extending, and the breathability of exterior body 5 can be improved, be easy to make exterior body 5 soft, improve feel.

In addition, in diaper 1A, as shown in Figure 10, be configured at upper adjacent leg bonding agent 7,7 interval each other of longitudinal direction (X-direction) in many leg bonding agents 7 near the high part of the curvature (1/ radius of curvature) of leg elastic members 55, be configured to and be configured at compared with the upper adjacent leg bonding agent 7,7 of longitudinal direction (X-direction) in many leg bonding agents 7 of the low part of the curvature (1/ radius of curvature) of leg elastic members 55 interval each other narrow.Therefore, it is possible to realize to along leg opening part LO curve-like the leg elastic members 55 of state configuration of extending effectively stable fixing.Particularly in diaper 1A, in the region overlapping with side seal portion S of veutro leg elastic members 551, the region overlapping with side seal portion S of dorsal part leg elastic members 552, in the part that the curvature (1/ radius of curvature) of each self-corresponding leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552) in region intersected with veutro leg elastic members 551 and dorsal part leg elastic members 552 is high, adjacent described leg bonding agent interval D min is each other the narrowest interval, therefore, it is possible to more fixing with along the leg opening part LO curve-like ground leg elastic members 55 of state configuration of extending.

In addition, in diaper 1A, as shown in Figure 10, most wide interval Dmax longitudinally in (X-direction) upper adjacent leg bonding agent 7,7 interval each other, is configured at the region comprising the flex point 5P2 of dorsal part leg elastic members 552 that the part low with the curvature (1/ radius of curvature) of leg elastic members 55 (veutro leg elastic members 551 and dorsal part leg elastic members 552) is corresponding.Therefore, it is possible to reduce the coating amount to the leg bonding agent 7 that the outer-skin sheet 51 and inner layer piece 52 that form exterior body 5 are fixed, improve the breathability of exterior body 5, and can feel be improved.In addition, if the coating amount of leg bonding agent 7 can be reduced like this, be then easy to make exterior body 5 soft, be easy to the shape of the buttocks along with wearer, improve fit sense during the wearing of diaper 1A.

In addition, in diaper 1A, as shown in Figure 10, the most wide interval Dmax longitudinally in (X-direction) upper adjacent leg bonding agent 7,7 interval each other, is configured at the region comprising horizontal centre line C L 2.Therefore, the coating amount to the leg bonding agent 7 that the outer-skin sheet 51 and inner layer piece 52 that form exterior body 5 are fixed can be reduced, be easy to make exterior body 5 soft, be easy to carry out doubling when manufacturing Breeches type disposable diaper, improve productivity, and on the product manufactured, not easily form folding line, improve fit sense during the wearing of diaper 1A.

In addition, in diaper 1A, as shown in Figure 10, most wide interval Dmax longitudinally in (X-direction) upper adjacent leg bonding agent 7,7 interval each other, is configured at the region in the non-long-pending fine portion (non-long-pending fine portion 43 of central authorities and the non-long-pending fine portion 44,44 of a counter-lateral quadrents) being configured with absorbent core 40 in longitudinal direction (X-direction).Therefore, it is possible to reduce the coating amount to the leg bonding agent 7 that the outer-skin sheet 51 and inner layer piece 52 that form exterior body 5 are fixed, work mutually with the non-long-pending fine portion of absorbent core 40, further increase the breathability of exterior body 5.

In addition, the exterior body 5 of diaper 1A is as shown in Fig. 8, Figure 10, in stretching region ET, many elastomeric element 53 configures with elongation state in transverse direction (Y-direction) in the mode not by multiple exterior body weld portion 56, and be fixed between outer-skin sheet 51 and inner layer piece 52 with the both ends of the elastomeric element 53 of elongation state configuration, as shown in figure 12, outer-skin sheet 51 and each self-forming of inner layer piece 52 throughout this many elastomeric elements 53 ground at many pleats 51f1,52f1 that longitudinal direction (X-direction) extends continuously.Specifically, in the Hookean region ET of diaper 1A, as shown in figure 12, shunk by the elastomeric element 53 configured with elongation state in transverse direction (Y-direction) between outer-skin sheet 51 and inner layer piece 52, upper adjacent by transverse direction (Y-direction), the row of the weld portion that the multiple exterior body weld portion 56 forming row in longitudinal direction (X-direction) are formed outer-skin sheet 51 each other and inner layer piece 52, be out of shape in the mode heaved outside thickness direction, the pleat 51f1 be made up of outer-skin sheet 51 or inner layer piece 52 is produced each other at the row of the upper adjacent described weld portion of transverse direction (Y-direction), 52f1, and at two sheets 51, formed between 52 around by the hollow bulb 50A of pleat 51f1 and pleat 52fl encirclement.And hollow bulb 50A is formed as throughout many elastomeric elements 53 configured with elongation state in transverse direction (Y-direction) and extends continuously in longitudinal direction (X-direction).Therefore, it is possible to improve the breathability of exterior body 5, improve appearance.

In addition, the exterior body 5 of diaper 1A as shown in Figure 10, the elastomeric element 53 being configured at the region overlapping with absorbent main body 10 in many elastomeric elements 53 each slightly cut off, reduce Telescopic.Therefore, the crotch region C side of stretching region ET is formed at the position leaning on laterally (Y-direction) outside than the both sides of (X-direction) along the longitudinal of absorbent main body 10.Like this, because the crotch region C side of stretching region ET is formed at the position leaning on laterally (Y-direction) outside than the both sides of (X-direction) along the longitudinal of absorbent main body 10, so the breathability of exterior body 5 can be improved, appearance is improved.

Then, to the Breeches type disposable diaper 1B of second embodiment of this utility model (the second utility model) (hereinafter also referred to " diaper 1B ".) be described.In the diaper 1B of the second embodiment, the configuration mode of many leg bonding agents 7 is different from the diaper 1A of the first embodiment.For the diaper 1B of the second embodiment, mainly different from the diaper 1A of the first embodiment to it aspects is described, and adds same-sign and omit the description for identical aspect.For the aspect do not mentioned especially, suitably application is about the explanation of diaper 1A.In addition, about the effect of the diaper 1B of the second embodiment, the aspect different from the effect of diaper 1A is described, the aspect be not particularly illustrated, the same with the effect of diaper 1A, the suitably explanation of the effect of application diaper 1A.

In the diaper 1B of the second embodiment, form 2 legs bonding agent 7 of exterior body 5 as shown in figure 13, with comprise dorsal part leg elastic members 552 flex point 5P2, comprise horizontal centre line C L 2 and the mode comprising the region in the non-long-pending fine portion (central authorities non-long-pending fine portion 43 and the non-long-pending fine portion 44,44 of a counter-lateral quadrents) being configured with absorbent core 40 configures, and form an interval D max the widest.And, the region except this widest interval D max be configured with in the region LT of many leg elastic members 55 in longitudinal direction (X-direction), many leg bonding agents 7 configure with the interval that leg elastic members 55, the 55 interval D L each other above adjacent with longitudinal direction (X-direction) is roughly the same.Like this, many leg bonding agents 7 of diaper 1B configure in the upper adjacent leg bonding agent 7,7 of longitudinal direction (X-direction) mode being spaced apart two kinds of different intervals each other.

Diaper 1B as shown in figure 13, because many leg bonding agents 7 configure, so can obtain maintaining intensity and the better diaper of feel in the upper adjacent leg bonding agent 7,7 of longitudinal direction (X-direction) mode being spaced apart two kinds of different intervals each other.

Above, be preferred embodiment illustrated based on it for this utility model (the second utility model), but this utility model (the second utility model) is not restricted to above-mentioned embodiment, can suitably change.

Such as, above-mentioned disposable diaper 1A, 1B are as shown in Figure 10, Figure 13, the absorbent core 40 forming absorber 4 has non-long-pending fine portion (non-long-pending fine portion 43 of central authorities and the non-long-pending fine portion 44,44 of a counter-lateral quadrents), but also can be the absorbent core amassing nothing but fine portion.In addition, as mentioned above, absorbent core 40 in diaper 1A, 1B is formed by upper absorbent layer 411 and lower absorbent layer 412 multilamellar, but also can be formed with the monolayer in low grammes per square metre portion 42 of low grammes per square metre compared with high grammes per square metre portion 41, the both sides in high grammes per square metre portion 41 with high grammes per square metre portion 41, also can form (not shown) with the absorbed layer of single grammes per square metre.When being formed with single grammes per square metre, the upper non-long-pending fine portion 43 of central authorities extended of longitudinal direction (X-direction) is formed at transverse direction (Y-direction) central part of the absorbed layer of single grammes per square metre, in addition, as long as form the non-long-pending fine portion 44,44 of sidepiece respectively in the left and right in non-long-pending fine portion 43 of central authorities.

In addition, in above-mentioned diaper 1A, 1B, about the leg bonding agent 7 forming exterior body 5, as shown in figure 13, most wide interval Dmax longitudinally in (X-direction) upper adjacent leg bonding agent 7,7 interval each other, be configured at the flex point 5P2 that comprises dorsal part leg elastic members 552 and comprise the region of horizontal centre line C L 2, but also can be configured in the flex point 5P2 and horizontal centre line C L 2 comprising dorsal part leg elastic members 552 region of any one.In addition, the region of the flex point 5P1 comprising veutro leg elastic members 551 can be also configured at.

In addition, in above-mentioned diaper 1A, 1B, be exterior body 5 be the Breeches type disposable diaper in ventral region A, crotch region C and the dorsal part region B continuous print shape such as hourglass-shaped on the whole as shown in Figure 7, Figure 8, but also can be the Breeches type disposable diaper that exterior body 5 is split into the Splittable as the veutro exterior body of individual components, dorsal part exterior body and crotch exterior body.

In addition, in above-mentioned diaper 1A, 1B, as shown in Figure 10, Figure 13, in the region overlapping with absorbent main body 10, in multiple involution cutting portion 59, each is slightly cut off each elastomeric element 53, but also can not be cut off.

About above-mentioned embodiment, also disclose following disposable diaper.

(1)

A kind of disposable diaper, comprising: absorbent main body, and it has positive dough sheet, back sheet, is configured in absorber between these two sheets; And exterior body, it is configured at the non-skin opposite face side of this absorbent main body, and the feature of described disposable diaper is:

Described exterior body comprises: the outer-skin sheet forming the non-skin opposite face side of the outer surface of described disposable diaper; The inner layer piece of skin opposite face side; With the elastomeric element that the state of the transverse extension at this disposable diaper configures between this outer-skin sheet and this inner layer piece; With the banded bonding agent configured intermittently in the vertical along this transverse direction,

Described exterior body has stretching region, this stretching region is formed in the following manner: many described elastomeric elements configure intermittently in the longitudinal direction of described disposable diaper, all configure the described banded bonding agent of one or more at longitudinal this adjacent elastomeric element each other, fix described outer-skin sheet and described inner layer piece via this banded bonding agent.

(2)

Disposable diaper according to described (1), wherein,

Described elastomeric element is rubber covered wire.

(3)

Disposable diaper according to described (1) or (2), wherein,

In described stretching region, via the surperficial bonding agent on surface being configured at described elastomeric element, fixing described outer-skin sheet and described inner layer piece.

(4)

According to the disposable diaper according to any one of described (1) ~ (3), wherein,

At longitudinally adjacent described banded bonding agent interval each other, identical with the length of the longitudinal direction of each described banded bonding agent.

(5)

According to the disposable diaper according to any one of described (1) ~ (4), wherein,

Described elastomeric element has the second elastomeric element in ventral region and dorsal part region,

Described stretching region has the second Hookean region in ventral region and dorsal part region,

As in described second Hookean region of described stretching region, between described outer-skin sheet and described inner layer piece, described second elastomeric element of the state of transversely extending longitudinally is configuring intermittently.

(6)

Disposable diaper according to described (5), wherein,

Be configured at everywhere longitudinally (X-direction) upper adjacent described second elastomeric element described banded bonding agent each other, configure more than 1 less than 10, be preferably more than 2 less than 5.

(7)

According to the disposable diaper according to any one of described (1) ~ (6), wherein,

Described elastomeric element has the 3rd elastomeric element in ventral region,

Described stretching region has the 3rd Hookean region in ventral region,

As in described 3rd Hookean region of described stretching region, between described outer-skin sheet and described inner layer piece, described 3rd elastomeric element of the state of transversely extending longitudinally is configuring intermittently.

(8)

Disposable diaper according to described (7), wherein,

Be configured at everywhere longitudinally upper adjacent described 3rd elastomeric element described banded bonding agent each other, configure more than 1 less than 4, be preferably more than 1 less than 3.

(9)

According to the disposable diaper according to any one of described (1) ~ (8), wherein,

Described stretching region has the second Hookean region in ventral region and dorsal part region, and has the 3rd Hookean region in ventral region,

As in described second Hookean region of described stretching region and described 3rd Hookean region, longitudinally (X-direction) upper adjacent described banded bonding agent interval W1 is each other more than 0.5mm below 10mm, is preferably more than 0.7mm below 5mm.

(10)

According to the disposable diaper according to any one of described (1) ~ (9), wherein,

As in described second Hookean region of described stretching region and described 3rd Hookean region, the length (width W 2) of the longitudinal direction of described banded bonding agent is more than 0.5mm below l0mm, is preferably more than 0.7mm below 5mm.

(11)

According to the disposable diaper according to any one of described (1) ~ (10), wherein,

Described elastomeric element has the second elastomeric element in ventral region and dorsal part region, and has the 3rd elastomeric element in ventral region,

In described second Hookean region, between described outer-skin sheet and described inner layer piece, longitudinally configuring intermittently at described second elastomeric element of the state of transverse extension,

In described 3rd Hookean region, between described outer-skin sheet and described inner layer piece, longitudinally configuring intermittently at described 3rd elastomeric element of the state of transverse extension,

As in described second Hookean region of described stretching region and described 3rd Hookean region, longitudinally (X-direction) upper adjacent described second elastomeric element each other or described 3rd elastomeric element interval W3 be each other more than 0.5mm below 10mm, be preferably more than 0.7mm below 5mm.

(12)

According to the disposable diaper according to any one of described (1) ~ (11), wherein,

At least one in described outer-skin sheet and described inner layer piece, its fibre orientation forming fiber is consistent with the configuration direction of described banded bonding agent.

(13)

According to the disposable diaper according to any one of described (1) ~ (12), wherein,

Described stretching region is formed at the position leaning on lateral outer side than the both sides along the longitudinal of described absorbent main body.

(14)

According to the disposable diaper according to any one of described (1) ~ (13), wherein,

In described exterior body, in the region overlapping with described absorbent main body, in multiple cutting portion, each is slightly cut off each described elastomeric element, and the Telescopic of this elastomeric element reduces,

Shorter than the length of the longitudinal direction of each described cutting portion at longitudinally adjacent described banded bonding agent interval each other.

(15)

Disposable diaper according to described (14), wherein, the length L1 of the longitudinal direction of described cutting portion is more than 1mm below 15mm, is preferably more than 1.5mm below 10mm.

(16)

According to the disposable diaper according to any one of described (1) ~ (15), wherein,

Described disposable diaper is Breeches type disposable diaper.

(17)

According to the disposable diaper according to any one of described (1) ~ (16), wherein,

Leg elastic members is configured with between described outer-skin sheet and described inner layer piece,

Many the described banded bonding agents of described leg elastic members by configuring intermittently in longitudinal direction (X-direction), and be fixed between described outer-skin sheet and described inner layer piece.

(18)

According to the disposable diaper according to any one of described (1) ~ (17), wherein,

Described elastomeric element has the first elastomeric element in ventral region and dorsal part region,

Described exterior body comprises: pair of end portions fixed part, and it is positioned at the edge, both sides of ventral region and the edge, both sides in dorsal part region, fixes this outer-skin sheet and this inner layer piece by the bonding agent be configured between described outer-skin sheet and described inner layer piece; A pair absorbent main body side fixed part, it is arranged in and leans on lateral center and the position overlapping with the both sides alongst of described absorbent main body of ventral region than the described end winding support portion of ventral region, this outer-skin sheet and this inner layer piece is fixed by the bonding agent be configured between described outer-skin sheet and described inner layer piece

Be positioned at many described first elastomeric elements of the part overlapping with the both ends of described absorbent main body, in the region between described end winding support portion and described absorbent main body side fixed part, be not fixed on described outer-skin sheet and described inner layer piece.

(19)

According to the disposable diaper according to any one of described (5) ~ (18), wherein,

The surperficial bonding agent of many described second elastomeric elements by using comb shape spray gun to be coated in the surface of elastomeric element, and be fixed on transverse direction (Y-direction) the whole region of described outer-skin sheet and described inner layer piece.

(20)

According to the disposable diaper according to any one of described (7) ~ (19), wherein,

The surperficial bonding agent of many articles of described 3rd elastomeric elements by using comb shape spray gun to be coated on the surface of elastomeric element, and be fixed on transverse direction (Y-direction) the whole region of described outer-skin sheet and described inner layer piece.

(21)

According to the disposable diaper according to any one of described (1) ~ (20), wherein,

The weld portion that described exterior body passes through laterally configuring intermittently is fixed partly by between described outer-skin sheet and described inner layer piece,

The pleat be made up of described outer-skin sheet or described inner layer piece is produced each other at the row of the upper adjacent described weld portion of transverse direction (Y-direction), and the hollow bulb surrounded by described pleat around being formed between described outer-skin sheet and described inner layer piece.

(22)

Disposable diaper according to described (21), wherein,

Described hollow bulb extends continuously to be formed in longitudinal direction (X-direction) in the mode throughout many described first elastomeric elements configured with elongation state in transverse direction (Y-direction).

(23)

According to the disposable diaper according to any one of described (1) ~ (22), wherein,

Adjacent in the vertical described second elastomeric element of described exterior body each other, fixes described outer-skin sheet and described inner layer piece via many described banded bonding agents,

Described second elastomeric element and and the adjacent described banded bonding agent of this second elastomeric element between, be formed with the pleat extended continuously along this second elastomeric element.

(24)

A kind of Breeches type disposable diaper, comprising: absorbent main body, and it has positive dough sheet, back sheet, is configured in absorber between these two sheets; And exterior body, it is configured at the non-skin opposite face side of this absorbent main body, the edge, both sides of the ventral region of this exterior body engages with the edge, both sides in the dorsal part region of this exterior body, and form a pair side seal portion, waist opening portion and a pair leg opening part, the feature of described Breeches type disposable diaper is:

Described exterior body comprises: the outer-skin sheet forming the non-skin opposite face side of the outer surface of described Breeches type disposable diaper; The inner layer piece of skin opposite face side; With respectively along described a pair leg opening part curve-like ground many leg elastic members configuring of the state of extending between this outer-skin sheet and this inner layer piece; With many leg bonding agents fixing this leg elastic members,

Overlook make described Breeches type disposable diaper launch and extend state time, the region being configured with described many leg elastic members in the longitudinal direction of described Breeches type disposable diaper, landscape configuration along this Breeches type disposable diaper has described many leg bonding agents

Described many leg bonding agents configure in described leg bonding agent adjacent in the longitudinal direction of the described Breeches type disposable diaper mode being spaced apart two or more different interval each other.

(25)

Breeches type disposable diaper according to described (24), wherein,

Described leg elastic members comprises: many veutro leg elastic members, its with from a described leg opening part of side, described ventral region by crotch region until this side, ventral region another described in the mode of leg opening part configure with extended configuration; With many dorsal part leg elastic members, its with from a described leg opening part of described dorsal part area side by described crotch region until dorsal part area side another described in the mode of leg opening part configure with extended configuration,

Described veutro leg elastic members and described dorsal part leg elastic members, cut-off in the lateral center portion of described crotch region,

Interval the widest in described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, be configured at the region comprising the flex point of this veutro leg elastic members in the region being configured with described many veutro leg elastic members, or be configured at the region comprising the flex point of this dorsal part leg elastic members in the region being configured with described many dorsal part leg elastic members.

(26)

Breeches type disposable diaper according to described (24) or (25), wherein,

Described absorber comprises the clad sheet of absorbent core containing water absorbent polymer and this absorbent core coated,

Described absorbent core has the few non-long-pending fine portion of the formation material of this absorbent core,

Overlook make described Breeches type disposable diaper launch and extend state time, described non-long-pending fine portion is formed extended at both sides in the longitudinal direction of described Breeches type disposable diaper,

Interval the widest in described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, is configured at the region being configured with described non-long-pending fine portion in the longitudinal direction of described Breeches type disposable diaper.

(27)

Breeches type disposable diaper according to described (26), wherein,

Described non-long-pending fine portion has non-long-pending fine portion of central authorities and the non-long-pending fine portion of a counter-lateral quadrents,

Most wide interval in described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, configures in the mode of all intersecting with the non-long-pending fine portion of sidepiece described in non-long-pending fine portion of described central authorities and a pair.

(28)

According to the Breeches type disposable diaper according to any one of described (24) ~ (27), wherein,

Most wide interval among described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, is configured at the region comprising the flex point of this dorsal part leg elastic members in the region being configured with described many dorsal part leg elastic members.

(29)

According to the Breeches type disposable diaper according to any one of described (24) ~ (28), wherein,

Adjacent leg bonding agent interval each other in longitudinal direction in many described leg bonding agents of configuration near the part that the curvature (1/ radius of curvature) of described leg elastic members is high, is configured to and narrow compared with leg bonding agent adjacent in longitudinal direction in many described leg bonding agents configuring near the part that the curvature (1/ radius of curvature) of this leg elastic members is low interval each other.

(30)

Breeches type disposable diaper according to described (29), wherein,

In the part that the described curvature (1/ radius of curvature) of leg elastic members 55 is high, namely, the region that the region overlapping with side seal portion S in veutro leg elastic members 551, the region overlapping with side seal portion S in dorsal part leg elastic members 552 and veutro leg elastic members 551 are intersected with dorsal part leg elastic members 552, this radius of curvature is more than 10mm below 150mm degree.

(31)

According to the Breeches type disposable diaper according to any one of described (24) ~ (30), wherein, about the region that described many leg elastic members are overlapping with described side seal portion,

Described leg bonding agent interval each other adjacent in the longitudinal direction of described Breeches type disposable diaper, narrower than leg elastic members adjacent in the longitudinal direction of this Breeches type disposable diaper interval each other.

(32)

According to the Breeches type disposable diaper according to any one of described (24) ~ (31), wherein, longitudinally (X-direction) upper adjacent described leg bonding agent interval D min is each other less than more than 0.05 0.5 relative to the ratio (Dmin/DL) of longitudinally above adjacent described leg elastic members interval D L each other, is preferably less than more than 0.1 0.3.

(33)

According to the Breeches type disposable diaper according to any one of described (24) ~ (32), wherein,

Adjacent described leg bonding agent interval D min is each other more than 0.5mm below 5mm, is preferably more than 1mm below 3mm.

(34)

According to the Breeches type disposable diaper according to any one of described (24) ~ (33), wherein,

Most wide interval among described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, is configured at the region comprising the horizontal centrage in horizontal expansion be divided into two by described Breeches type disposable diaper.

(35)

According to the Breeches type disposable diaper according to any one of described (24) ~ (34), wherein,

Described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper each other within most wide interval Dmax be more than 0.5mm below 50mm, be preferably more than 1mm below 30mm.

(36)

According to the Breeches type disposable diaper according to any one of described (26) ~ (35), wherein,

The lateral center portion of described absorbent core in crotch region of described absorber has high grammes per square metre portion, has the low a pair grammes per square metre portion that grammes per square metre is lower than this high grammes per square metre portion in the both sides in this high grammes per square metre portion,

In the lateral center portion in described high grammes per square metre portion, there is non-long-pending fine portion of the described central authorities extended in longitudinal direction (X-direction), in each described low grammes per square metre portion, there is the non-long-pending fine portion of described sidepiece.

(37)

According to the Breeches type disposable diaper according to any one of described (26) ~ (36), wherein,

The described absorbent core of described absorber has upper absorbent layer and lower absorbent layer,

Described non-long-pending fine portion has non-long-pending fine portion of central authorities,

Non-long-pending fine portion of described central authorities forms the openings of the upper long rectangle of both longitudinal direction (X-direction) through in described upper absorbent layer and described lower absorbent layer.

(38)

According to the Breeches type disposable diaper according to any one of described (25) ~ (37), wherein,

Described veutro leg elastic members is configured with 1 ~ 10 intermittently along the docking portion of described leg opening part, fixes with described leg bonding agent.

(39)

According to the Breeches type disposable diaper according to any one of described (25) ~ (38), wherein,

Described dorsal part leg elastic members configures 1 ~ 10 intermittently along the docking portion of described leg opening part, fixes with described leg bonding agent.

Industrial practicality

According to this utility model (the first utility model), utilize and form the elastomeric element of exterior body and the configuration relation of bonding agent, improve the flexibility of exterior body further, improve appearance.

According to this utility model (the second utility model), can stably be fixed between outer-skin sheet and inner layer piece with along leg opening part curve-like extend state configuration leg elastic members, the breathability of exterior body can be improved simultaneously, and be easy to make exterior body softnessization, improve feel.

Claims

1. a disposable diaper, comprising: absorbent main body, and it has positive dough sheet, back sheet, is configured in absorber between these two sheets; And exterior body, it is configured at the non-skin opposite face side of this absorbent main body, and the feature of described disposable diaper is:

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

Described elastomeric element is rubber covered wire.

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

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

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

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

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

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

Described disposable diaper is Breeches type disposable diaper.

9. a Breeches type disposable diaper, comprising: absorbent main body, and it has positive dough sheet, back sheet, is configured in absorber between these two sheets; And exterior body, it is configured at the non-skin opposite face side of this absorbent main body, the edge, both sides of the ventral region of this exterior body engages with the edge, both sides in the dorsal part region of this exterior body, and form a pair side seal portion, waist opening portion and a pair leg opening part, the feature of described Breeches type disposable diaper is:

10. Breeches type disposable diaper as claimed in claim 9, is characterized in that:

11. Breeches type disposable diapers as claimed in claim 9, is characterized in that:

12. Breeches type disposable diapers as claimed in claim 9, is characterized in that:

Interval the widest in described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, is configured at the region comprising the flex point of this dorsal part leg elastic members in the region being configured with described many dorsal part leg elastic members.

13. Breeches type disposable diapers as claimed in claim 9, is characterized in that:

In the region that described many leg elastic members are overlapping with described side seal portion,

14. Breeches type disposable diapers as claimed in claim 9, is characterized in that:

Interval the widest in described leg bonding agent adjacent in the longitudinal direction of described Breeches type disposable diaper interval each other, is configured at the region comprising the horizontal centrage in horizontal expansion be divided into two by described Breeches type disposable diaper.