CN109982672A

CN109982672A - Absorbent commodity

Info

Publication number: CN109982672A
Application number: CN201780072766.2A
Authority: CN
Inventors: 只井智浩; 恩田蓝子
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2016-12-28
Filing date: 2017-12-06
Publication date: 2019-07-05
Anticipated expiration: 2037-12-06
Also published as: JP6941518B2; RU2737447C1; JP2018108338A; CN109982672B

Abstract

Absorbent commodity (1) of the invention has the main body lateral plate (32) and outer surface lateral plate (31) engaged with absorbent main body (2) in veutro pars contractilis (WA) and back side pars contractilis (WB).Main body lateral plate (32) or outer surface lateral plate (31) are stretchable sheet.In the stretchable sheet, height flexible position (31H) alternately configures on the direction (Y) with flatness contracting position (31L).In veutro pars contractilis (WA) or back side pars contractilis (WB), it is being configured with stretchable sheet and the region (23PT) Chong Die with absorber (23), is being engaged with the height of stretchable sheet flexible position (31H) and is forming the first junction (1JT).In region (23NT) not Chong Die with absorber (23), it is engaged with the flatness contracting position (31L) of stretchable sheet and forms the second junction (2JT), and form the second disengaged position (2NJT) not engaged with the height of stretchable sheet flexible position (31H).

Description

Absorbent commodity

Technical field

The present invention relates to the absorbent commodities such as disposable diaper, sanitary napkin.

Background technique

For example, being configured in Breeches type disposable diaper in the outside of the absorbent main body of the lengthwise with absorber Exterior body.As the composite sheet of the retractility used in such exterior body, such as it has been known that there is what is recorded in patent document 1 to answer Close piece.

The composite sheet for the retractility recorded in patent document 1 is to include non-telescoping property piece, flexible nonwoven fabrics and keep this non- The piece for the bonding portion that telescopic sheet is bonded with the flexible nonwoven fabrics.Using the composite sheet of such retractility as example short When the exterior body of pant-type disposable diaper, the aesthetics of disposable diaper is good, and use feeling improves.

Existing technical literature

Patent document

Patent document 1:WO2008/066009 pamphlet

Summary of the invention

The present invention is absorbent commodity, in the longitudinal direction includes ventral region, back side region and positioned at the crotch between them Portion region, with the absorbability master across the ventral region and the back side region with the absorber containing absorbent material Body, and the veutro pars contractilis and back side pars contractilis horizontally extended is respectively provided in the ventral region and the back side region. The veutro pars contractilis and the back side pars contractilis are respectively provided with the main body lateral plate engaged with the absorbent main body and are configured at The outer surface lateral plate of the non-skin opposite face of the main body lateral plate.At least one of the main body lateral plate and the outer surface lateral plate be Horizontally with the stretchable sheet of retractility.In the stretchable sheet, the relatively high high flexible position of retractility is opposite with retractility Low flatness contracting position horizontally alternately configures.Match at least one of the veutro pars contractilis and the back side pars contractilis It is equipped with the stretchable sheet.In the region Chong Die with the absorber, it is formed with the main body lateral plate and the outer surface lateral plate In the first junction that the high flexible position is engaged.Compared with the absorber be located at outside not with the absorber In the region of overlapping, it is formed with the second joint portion that the main body lateral plate is engaged with the outer surface lateral plate at flatness contracting position Position, and it is formed with the second disengaged portion that the main body lateral plate is not engaged with the outer surface lateral plate at the high flexible position Position.

Detailed description of the invention

Fig. 1 is the perspective view as the Breeches type disposable diaper of a currently preferred embodiment.

Fig. 2 is the local truncation exhibition of the state after diaper shown in FIG. 1 is unfolded and is extended from skin contact layer side Open plane figure.

Fig. 3 is the exploded perspective view that diaper shown in FIG. 1 is decomposed and schematically shown.

Fig. 4 is the perspective view for constituting the outer surface lateral plate with retractility of diaper shown in FIG. 1.

Fig. 5 is V-V sectional view shown in Fig. 2.

Fig. 6 (a) is VI-VI sectional view shown in Fig. 2, and Fig. 6 (b) is the sectional view for indicating the contracted state of Fig. 6 (a).

Specific embodiment

But about in the compound of the retractility that non-telescoping property piece and flexible nonwoven fabrics will be made to be bonded at bonding portion When piece is applied to exterior body, the bonding station of the composite sheet and the absorber containing absorbent material is not appointed in patent document 1 What is recorded.For example, if only configuring the composite sheet of retractility in the engagement position be overlapped with absorber, it may be because of composite sheet It shrinks and generates fold in absorber, cause the absorbent properties for hindering absorber, leak.

The present invention relates to the absorbent commodities for being able to solve disadvantage possessed by the above-mentioned prior art.

Hereinafter, based on embodiment preferred for this invention, the present invention will be described referring to attached drawing.

Absorbent commodity of the invention has ventral region A, back side region B on longitudinal X and between above-mentioned A, B Crotch region C, across ventral region A and back side region B have the absorber 23 containing absorbent material, A and back in ventral region Side region B is respectively provided with the veutro pars contractilis WA extended in the lateral direction y and back side pars contractilis WB.Herein, ventral region A is one Secondary property diaper is configured at the region of the veutro of wearer when being worn, back side region B is the configuration when disposable diaper is worn In the region of the back side of wearer.Veutro pars contractilis WA is formed in the ventral region A for being configured at the veutro of wearer like this.This Outside, back side pars contractilis WB is formed in the back side region B for being configured at the back side of wearer like this.

The pants-type disposable urine of an embodiment as absorbent commodity of the invention is shown in Fig. 1 and Fig. 2 Cloth 1 (hereinafter referred to as " diaper 1 ").Diaper 1 is as depicted in figs. 1 and 2, including absorbent main body 2 and exterior body 3, the exterior body 3 are matched The non-skin for being placed in absorbent main body 2 fixes the absorbent main body 2 with respect to surface side, and exterior body 3 has respectively in ventral region A With back side region B along lateral Y the veutro pars contractilis WA extended and back side pars contractilis WB.Diaper 1 is the ventral region of exterior body 3 Left and right sides edge 3a1,3a1 of A is engaged with the left and right sides edge 3b1,3b1 of the back side region B of exterior body 3 and is formed with one To the disposable diaper in side seal portion 5,5, waist opening portion WH and a pair of of leg opening part LH, LH.The preferably exterior of diaper 1 Body 3 is divided into the veutro that wearer is configured at when wearing as shown in Fig. 2, when overlooking the state of expansion and elongation Ventral region A, be configured at when wearing wearer back side back side region B and between ventral region A and back side region B Crotch region C.

As shown in Fig. 2, the state of the above-mentioned expansion of diaper 1 and elongation is made to refer to following state: tearing side seal portion 5, make diaper 1 As unfolded state, extend the elastomeric element of each section of the diaper 1 of the unfolded state, extend to as design size (with The size excluded in the state of the influence of elastomeric element when being extended to planar completely is identical) state.

In the present specification, " skin opposite face " be it is in diaper 1 or its component parts, when wearing towards wearer The face of skin side, " non-skin opposite face " be it is in diaper 1 or its component parts, when wearing towards and wearer skin side The face of opposite side (side of wearing the clothes).In diaper 1, longitudinal (X-direction) is in the state of planar development and elongation, from veutro Region A is to the direction of back side region B.In addition, laterally (Y-direction) be the direction orthogonal with longitudinal direction (X-direction), be planar development and The width direction of diaper 1 in the state of elongation.

In addition, diaper 1 becomes symmetrical about the vertical center line CL1 shown in Fig. 2 extended in longitudinal direction (X-direction) Shape.In addition, the CL2 in Fig. 2 is in the cross extended in transverse direction (Y-direction) for halving diaper 1 in longitudinal direction (X-direction) Heart line, it is orthogonal with vertical center line CL1.

In diaper 1, absorbent main body 2 has longitudinal (X as shown in Fig. 2, in the state of making diaper 1 be unfolded and extend Direction) relatively long lengthwise shape.Absorbent main body 2 has positive dough sheet 21, the shape for the liquid permeability for forming skin opposite face It is kept at the back sheet 22 and the liquid that is configured between this two panels 21,22 of the difficult liquid permeability (include water-repellancy) of non-skin opposite face The absorber 23 of property.In diaper 1, the overall length of the longitudinal direction (X-direction) of absorbent main body 2 is identical as the overall length of absorber 23, inhales The position of outer end 23A1,23B1 of rear ends 23A, 23B of acceptor 23 is as shown in Fig. 2, rear ends with absorbent main body 2 The position of outer end be located at same position.In addition, as shown in Fig. 2, the both sides of (X-direction) along longitudinal direction in absorbent main body 2 It is provided with leakage-proof turnup 24,24, which has with the elasticity of the state configuration extended in longitudinal direction (X-direction) Component 25.Specifically, leakage-proof turnup 24 is made of the material of opaque liquid or water-repellancy and gas permeability, in each leakage-proof turnup 24 Free end near, the configuration of state that leakage-proof turnup formation is extended in longitudinal direction (X-direction) with elastomeric element 25.In diaper When being worn, by the leakage-proof turnup formation contraction of elastomeric element 25, the free end side of leakage-proof turnup 24 is erected, and prevents body Liquid is flowed out to transverse direction (Y-direction).

The absorbent main body 2 constituted in the above-described manner is as shown in Fig. 2, make its longitudinal (X-direction) and expansion and elongation state Diaper 1 longitudinal direction (X-direction) unanimously, utilize the fixed central portion that exterior body 3 is engaged in bonding agent 4 of main body.Such as Fig. 3 institute Show, the both sides of along longitudinal direction X of the fixed coating position with bonding agent 4 of main body in absorbent main body 2 are at least formed on corresponding Position.Like this, exterior body 3 is configured at back sheet 22 on the thickness direction of disposable diaper 1, constituting absorbent main body 2 Non- skin be adhesively fixed with respect to surface side, and by main body is fixed with bonding agent 4.Thus, in diaper 1, constitute absorbent main body 2 Across the ventral region A of absorber 23 and back side region B configuration.

Veutro pars contractilis WA and back side pars contractilis WB is respectively provided with the main body lateral plate 32 engaged with absorbent main body 2 and configuration In the outer surface lateral plate 31 of the non-skin opposite face of the main body lateral plate 32.In the present invention, main body lateral plate 32 and outer surface lateral plate At least one of 31 is stretchable sheet horizontally with retractility, and in diaper 1, outer surface lateral plate 31 is in the transverse direction (side Y To) on retractility stretchable sheet.In addition, in the present invention, at least the one of veutro pars contractilis WA and back side pars contractilis WB Person is configured with above-mentioned stretchable sheet, but in diaper 1, in both veutro pars contractilis WA and back side pars contractilis WB configured with above-mentioned Stretchable sheet.In addition, main body lateral plate 32 is the piece of the non-telescoping property without retractility in diaper 1.

In diaper 1, formed under wearing effect as shown in figure 3, the exterior body 3 for the absorbent main body 2 that is adhesively fixed has The outer surface of diaper 1, that is, non-skin opposite face outer surface lateral plate 31；It is opposite with the skin opposite face of outer surface lateral plate 31 to match The main body lateral plate 32 set, the laminated body comprising outer surface lateral plate 31 and main body lateral plate 32 and constitute.In the state that diaper 1 is worn Under, outer surface lateral plate 31 is located at the farther away side of body apart from wearer, forms the non-skin opposite face (appearance of diaper 1 Face), main body lateral plate 32 is located at the closer side of body away from wearer, forms the skin opposite face (inner surface) of diaper 1.Appearance Surface side piece 31 is with main body lateral plate 32 at defined position via the engagement means phase mutual connection such as heat sealing, ultrasonic sealing function, bonding agent It closes.

In diaper 1, as shown in figure 3, main body lateral plate 32 is made of a continuous piece, unlike this, outer surface lateral plate 31 combine multiple and constitute, specifically, including the veutro outer surface lateral plate 31A for constituting ventral region A, constituting back side region The back outer surface lateral plate 31B of B and between two panels 31A, 31C and constitute the crotch outer surface lateral plate 31C of crotch region C.Structure Overlap each other at the end of longitudinal X of each 31A, 31B, 31C of outer surface lateral plate 31, the lap by bonding agent, Engagement means well known to heat sealing, high frequency sealing, ultrasonic sealing function etc. are interconnected and integrated.In piece 31A, 31C and piece 31B Lap in, be to be located at the side away from 2 relative close of absorbent main body, piece positioned at the central piece 31B of longitudinal direction X respectively The non-skin opposite face at the both ends of longitudinal X of 31B is covered by piece 31A, 31C.

In diaper 1, as shown in figure 3, veutro outer surface lateral plate 31A has from the ventral region side A of main body lateral plate 32 The veutro extension 31AE that the end of longitudinal X is extended outward, in addition, back outer surface lateral plate 31B has from main body lateral plate Back side the extension 31BE, two extension 31AE, 31BE point that the end of longitudinal X of the 32 back side region side B is extended outward Not in a manner of covering the both ends of longitudinal X for the absorbent main body 2 that configuration is fixed on main body lateral plate 32, to main body lateral plate 32 Side is turned back, and is adhesively secured to other component parts (main body lateral plates of the diaper 1 opposite with two extension 31AE, 31BE 32, absorbent main body 2, leakage-proof turnup 24).

As described above, the outer surface lateral plate 31 of diaper 1 has retractility in the lateral direction y, specifically in diaper 1, outside Surface lateral plate 31 locally has retractility in the lateral direction y.That is, in diaper 1, as shown in figure 3, constituting outer surface lateral plate 31 Veutro outer surface side in veutro outer surface lateral plate 31A, back outer surface lateral plate 31B and crotch outer surface lateral plate 31C this three Piece 31A and back outer surface lateral plate 31B has retractility in the lateral direction y, and crotch outer surface lateral plate 31C does not have retractility, is Non-telescoping property.

In the present invention, the maximum elongation on the lateral Y of the piece with retractility is referred to " in the lateral direction y with retractility " Degree is 100% or more, the elongation recovery rate after making the piece on transverse direction Y with 100% elongation elongation, when shrinking (elongation recovery rate when 100% elongation) is at least 70% or more.In diaper 1, veutro outer surface lateral plate 31A and back side appearance Surface side piece 31B is piece in the lateral direction y with retractility.The elongation recovery rate of piece is measured by measuring method below.

Prepare the sample strip of length 50mm, width 25mm from the piece of measure object.In cupping machine (Co., Ltd. " Tensilon " RTC-1150A of Orientec) fixture between (grip separation K0) fixed sample strip, with the drawing of 300mm/min Stretching speed makes to extend between fixture and stretch sample strip, extends sample strip to the length K2 (=K0 × 2) when 100% elongation, Make constriction between fixture with the same speed of tensile speed, the length of sample strip at the time of tensile stress is become 0 is set as stretching Length K1 after long recovery.It is calculate by the following formula elongation recovery rate when 100% elongation of the piece of measure object.

Elongation recovery rate (%)=((K2-K1)/(K2-K0)) × 100 when 100% elongation

In addition, in the present invention, the piece of non-telescoping property refers to be surveyed by above-mentioned<measuring method of the elongation recovery rate of piece> Elongation recovery rate be 20% below, or elongation is to the piece being broken before 100%.In diaper 1, crotch outer surface lateral plate 31C and main body lateral plate 32 are the piece of non-telescoping property.

The veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of retractility as diaper 1, such as can be preferred (1) is used to have the stretchable sheet of tensile fibrous layer on the two sides of elastic fibrous layer or single side integration；(2) in netted elasticity The two sides of piece or single side integration have the stretchable sheet of tensile fibrous layer；(3) include elastic membrane elastic piece two sides or Single side integration has the stretchable sheet of tensile fibrous layer；(4) by it is mutually non-cross and in one direction extend in a manner of arrange Stretchable sheet made of more elastic yarns of column are engaged in its overall length with tensile non-woven fabrics with substantial non-elongate state etc..Make For elastic fibrous layer and the integrated method of tensile fibrous layer, such as can enumerate by being laminated them and carrying out water flow friendship Network or hot wind (air-through) etc. are handled and make the method for fiber interlacing, connect using hot pressing line, bonding agent, ultrasonic wave etc. The method of conjunction.

It in diaper 1, is the relatively high high flexible position 31H of retractility and flexible in the outer surface lateral plate 31 of stretchable sheet The relatively low flatness contracting position 31L of property is alternately configured in the lateral direction y.Preferably, in diaper 1, as shown in Figure 5 and Figure 6, The veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of the retractility of outer surface lateral plate 31 is constituted with the flexible position 31H of height It is formed with the flatness contracting position 31L mode alternately configured in the lateral direction y.

Preferred an example of stretchable sheet used in diaper 1 is illustrated in Fig. 4.Veutro outer surface lateral plate 31A shown in Fig. 4 The piece of the stretchable sheet of above-mentioned (4) is corresponded to back outer surface lateral plate 31B, therefore, is had based on non-elastic fiber Tensile fibrous layer the linear elastic yarn of a face bonding structure, include two fibre plates as the fibrous layer 36,37 and as the elastic yarn being configured between two panels 36,37 elastomeric element 38.The abdomen of retractility with the structure Such as side according to documented by Japanese Unexamined Patent Publication 2009-61743 bulletin side external surface lateral plate 31A and back outer surface lateral plate 31B Method, the part of a pair of of tooth space roller that insertion tooth and bottom of the tooth alternately form in the circumferential engaged and extend to form.High pars contractilis Position 31H is the position that is substantially extended of tooth of the tooth and another tooth space roller using a tooth space roller, flatness contracting position 31L be with Abutting portion that the tooth of one tooth space roller and the tooth of another tooth space roller abut respectively is the position not being extended substantially.? In the veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of diaper 1, the flexible position of the height continuously extended on longitudinal X 31H and the flatness contracting position 31L continuously extended on longitudinal X are alternately configured in the lateral direction y.

In diaper 1, constitute the veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of retractility two pieces 36, 37 (referring to Fig. 4) are tensile.Piece 36,37 can be in side identical with the extending direction of elastomeric element 38 (lateral Y) Elongation upwards.It is extending to include: the case where (a) the composition fiber of piece 36,37 itself extends；Even if (b) constituting fiber itself not Elongation, by intersection point in conjunction with fiber be located remotely from each other or by mutual combination of fiber etc. make to be formed by plurality of fibers The variation of stereochemical structure recurring structure is broken etc. by making to constitute fiber, and the case where make piece 36,37 overall elongated.

In diaper 1, the elastomeric element of the veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of retractility are constituted 38 (referring to Fig. 4) are the elastic yarns for extending in the state that elastic resin melts or softens and being formed.Multiple elastomeric elements 38 divide Not Bian Ji veutro outer surface lateral plate 31A and back outer surface lateral plate 31B overall length (overall length of the lateral Y of exterior body 3) it is substantial Continuously.Multiple elastomeric elements 38 are arranged in a manner of not extending on (lateral Y) in one direction across each other.Elastomeric element 38 It is engaged with substantially non-elongate state with two pieces 36,37.In veutro outer surface lateral plate 31A and back outer surface lateral plate 31B Elastomeric element 38 and piece 36,37 engagement, be by by constitute piece 36,37 fiber (non-elastic fiber) to be embedded to elastic portion State in part 38 and 38 welding of elastomeric element and implement, and not implemented using bonding agents such as hot melt adhesives 's.Thus, piece 36,37 (the tensile fibrous layer based on non-elastic fiber) and the elastomeric element 38 engaged it Between be not present bonding agent.

In diaper 1, the veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of retractility can with elastic portion It is stretched on the identical direction of extending direction (lateral Y) of part 38 (referring to Fig. 4).Veutro outer surface lateral plate 31A and back outer surface The retractility of lateral plate 31B is emerged from because of the elasticity of the elastomeric element 38 of high flexible position 31H.When by veutro outer surface lateral plate 31A and back outer surface lateral plate 31B is when side identical with the extending direction of elastomeric element 38 is pulled up, the flexible position of height The elastomeric element 38 and piece 36,37 of 31H extends, but the elastomeric element 38 of flatness contracting position 31L and piece 36,37 do not extend.Also, When releasing the stretching of veutro outer surface lateral plate 31A and back outer surface lateral plate 31B, the elastomeric element 38 of the flexible position 31H of height It shrinks, with the contraction, the piece 36,37 of the flexible position 31H of height is restored to the state before stretching.

About each position of high flexible position 31H and flatness contracting position 31L, the extending direction of elastomeric element 38 is (laterally Length when elongation Y), when being set as 100% when that will shrink, with the length of the lateral Y of high flexible position 31H than low pars contractilis Premised on the length of the lateral Y of position 31L is long, the flexible position 31H of height is preferably 130% or more, and more preferably 300% or more, it is excellent Choosing limit value is 600% or less.Also, flatness contracting position 31L be preferably 200% hereinafter, more preferably 170% hereinafter, it is preferred that Lower limit value is 100% or more.Length when above-mentioned elongation is measured by following measuring method.

From the stretchable sheet that high flexible position 31H and flatness contracting position 31L is alternately configured in the lateral direction y, in elasticity It is 200mm on the extending direction (lateral Y) of component 38, cuts out the sample strip of rectangle in the size that longitudinal X is 50mm.Use pen etc. In the part annotated mark of high flexible position 31H and flatness contracting position 31L, the flexible position 31H of measured in advance height and low pars contractilis The length of the respective transverse direction Y in part of position 31L.The sample strip is installed to " Tensilon " of Co., Ltd. O rientec manufacture RTC1210A.Distance is 150mm between fixture.Make mounted sample strip elastomeric element 38 extending direction (lateral Y) with The speed elongation that 100mm/ divides, the flexible position 31H of height and flatness contracting position when the elongation of sample strip stops, when measurement extends The length of the respective transverse direction Y in the part 31L.The length of the lateral Y of the flexible part position 31H of obtained height is being set as La, will To elongation when height stretch the length of lateral Y of the part position 31H be set as Lb when, calculate { Lb/La } × 100 as high flexible Length (%) when the elongation of the lateral Y of position 31H.In addition, the length (%) when the elongation of the lateral Y of flatness contracting position 31L Also it is calculated in the same way.

In diaper 1, veutro outer surface lateral plate 31A and two pieces 36 of back outer surface lateral plate 31B, 37 (references are constituted Fig. 4) be able to be staple fiber non-woven fabrics.As non-woven fabrics, can enumerate hot-wind nonwoven cloth, hot-rolling non-woven fabrics, spun lacing without Woven fabric, spun-bonded non-woven fabrics, melt spraying non-woven fabrics etc..Piece 36 and piece 37 are either piece of the same race, or are also possible to not of the same race Piece.This place speech " piece of the same race " refer to the manufacturing process of piece, piece composition fiber type, constitute fiber fiber footpath and Length, the thickness of piece and grammes per square metre etc. all identical.It is then " not of the same race when at least one element difference in them Piece ".

In diaper 1, the elastomeric element of the veutro outer surface lateral plate 31A and back outer surface lateral plate 31B of retractility are constituted 38 (elastic yarns) (referring to Fig. 4) such as with thermoplastic elastomer (TPE) or rubber for raw material.Especially when use thermoplastic elastomer (TPE) When for raw material, the melt spinning using extruder can be carried out similarly with common thermoplastic resin, in addition, obtaining by this method The elastic yarn obtained is easy to thermal welding, therefore, is suitable for veutro outer surface lateral plate 31A and back outer surface lateral plate 31B.As heat Thermoplastic elastic, for example, be able to use SBS (s-B-S), SIS (styrene-isoprene-phenylethene), The phenylethylenes such as SEBS (styrene ethylene butadiene-styrene), SEPS (styrene ethylene-propylene-styrene) elasticity Body, olefin type elastomer (the alpha-olefin elastomer of vinyl, by propylene class elasticity obtained by the copolymerization such as ethylene, butylene, octene Body), polyester elastomer, polyurethane elastomer etc., one of these can be used alone or be used in combination of two or more. It is further possible to use the composite fibre of the core-sheath-type or parallel type (side-by-side) that include these resins.

On the other hand, in diaper 1, the crotch outer surface lateral plate 31C and main body lateral plate 32 as non-telescoping property are (referring to figure 3), it is preferable to use the non-woven fabrics made of various manufacturing methods respectively, for example, spun-bonded non-woven fabrics, hot-wind nonwoven cloth, acupuncture nonwoven Cloth etc..As be used as non-telescoping property piece 31C, 32 non-woven fabrics composition fiber, such as can enumerate including polyethylene (PE), The fibre of polyester, the polyamide such as polypropylene (PP), polyethylene terephthalate (PET), polybutylene terephthalate (PBT) etc. Dimension etc..It both can be short for constituting the fiber of the non-woven fabrics of the crotch outer surface lateral plate 31C and main body lateral plate 32 that are used as non-telescoping property Fiber may be long fibre, both can may be water-repellancy for hydrophily.Furthermore it is possible to use core-sheath-type or parallel type Composite fibre, segmentation fiber, profiled fibre, crinkled fibre, heat-shrinkable fibre etc..One kind can be used alone in these fibers Or it is used in combination of two or more.

In diaper 1, as shown in Figures 2 and 3, in ventral region, each region of A and back side region B, linear or band-like Waist elastic members 33 in the lateral direction y with elongation state be configured with more, above-mentioned more waist elastic members 33 are on longitudinal X Intermittent configures at intervals.Like this, waist elastic members 33 are configured with the state for embodying its elastic extension, by This, in waist opening portion, the opening edge of WH forms throughout its complete cycle, substantially continuous cricoid waist fold.In addition, In the leg edge for forming a pair of of respective opening edge leg opening part LH, LH, one or more linear or band-like leg The leg elastic members 34 of fold formation are configured with elongation state, as a result, in a pair of of respective opening of leg opening part LH, LH Edge is formed with substantially continuous cricoid leg creases throughout its complete cycle.These elastomeric elements 33,34 are outside constituting It fills and is fixed between the outer surface lateral plate 31 and main body lateral plate 32 of body 3 by the way that the engagement means such as bonding agent are clamped.

In diaper 1, such as Fig. 5 and Fig. 6 (a) is shown respectively by veutro pars contractilis WA and back side pars contractilis WB, by main body The non-skin opposite face of lateral plate 32 is in the lateral direction y with elongation state configures the outer surface lateral plate 31 formed by stretchable sheet and is formed. Preferably, the veutro pars contractilis WA of diaper 1 is formed as, outside the non-skin opposite face of main body lateral plate 32, the veutro of retractility Surface lateral plate 31A is configured and is fixed with elongation state in the lateral direction y.In addition, the back side pars contractilis WB of diaper 1 is formed as, in master The back outer surface lateral plate 31B of the non-skin opposite face of side piece 32, retractility is configured and is consolidated with elongation state in the lateral direction y It is fixed.Herein, outer surface lateral plate 31 is referred in the lateral direction y with elongation state configuration, as shown in Fig. 2, making linear or band-like waist Portion's elastomeric element 33 and leg elastic members 34 and elastomeric element 38 as elastic yarn extend, and extend to design size The state of (identical as size when being extended to planar in the state of the complete influence for excluding elastomeric element).

Diaper 1 veutro pars contractilis WA and back side pars contractilis WB it is each in, in the region Chong Die with absorber 23 23PT is formed with the first junction that main body lateral plate 32 engages at the flexible position 31H of height of stretchable sheet with outer surface lateral plate 31 1JT is being located at outside and Chong Die with absorber 23 region 23NT compared with absorber 23, be formed with main body lateral plate 32 with outside The second junction 2JT that surface lateral plate 31 engages at the flatness contracting position 31L of stretchable sheet, and be formed with main body lateral plate 32 with The second disengaged position 2NJT that outer surface lateral plate 31 is not engaged in the flexible position 31H of height of stretchable sheet.Preferably, it is urinating In the veutro pars contractilis WA and back side pars contractilis WB of cloth 1, respectively as shown in figure 5, having the main body side of the piece as non-telescoping property Piece 32 and outer surface lateral plate 31 as stretchable sheet, in region 23PT Chong Die with absorber 23, become main body lateral plate 32 with outside The state that the flexible position 31H of the height of surface lateral plate 31 is engaged at the first junction 1JT.Also, it is flexible in the veutro of diaper 1 In portion WA and back side pars contractilis WB, it is being located at outside compared with absorber 23 and region not Chong Die with absorber 23 respectively 23NT becomes main body lateral plate 32 and engages at the second junction 2JT with the flatness contracting position 31L of outer surface lateral plate 31, and main The state that the flexible position 31H of the height of side piece 32 and outer surface lateral plate 31 is not engaged.

Preferably, it stretches in the ventral region A of diaper 1 in the non-skin opposite face of the main body lateral plate 32 of non-telescoping property Property veutro outer surface lateral plate 31A with extend in the lateral direction y state configuration, as shown in figure 5, about main body lateral plate 32 and veutro Outer surface lateral plate 31A, in the region 23PT Chong Die with absorber 23, main body lateral plate 32 is stretched with veutro outer surface lateral plate 31A's The flexible position 31H of the height of long status is engaged at the first junction 1JT and is formed veutro pars contractilis WA.Further, about master Side piece 32 and veutro outer surface lateral plate 31A are being located at outside compared with absorber 23 and region not Chong Die with absorber 23 In 23NT, as shown in Fig. 6 (a), the flatness contracting position 31L of the elongation state of main body lateral plate 32 and veutro outer surface lateral plate 31A exists The flexible position 31H of the height of engagement and main body lateral plate 32 and veutro outer surface lateral plate 31A is not engaged at second junction 2JT And veutro pars contractilis WA is formed, in the ventral region A of diaper 1, " region 23NT not Chong Die with absorber 23 " is such as Fig. 2 institute Show, is located at longitudinal direction X compared with constituting the outer end 23A1 of front end 23A of the longitudinal direction (X-direction) of absorber 23 of absorbent main body 2 Outside (opposite side of the side horizontal center line CL2) end flaps part.Also, in addition to the end flaps part, also refers to and inhale Compare the longitudinal X's for being located on the outside of transverse direction Y and being located at the end flaps part in the both sides of (X-direction) along longitudinal direction of acceptor 23 The region of side flaps part between lower end and the lower end in side seal portion 5.

It is same as ventral region A shown in fig. 5, in the back side region B of diaper 1, in the main body lateral plate 32 of non-telescoping property Non- skin opposite face, the state configuration of the back outer surface lateral plate 31B of retractility to extend in the lateral direction y, in main body lateral plate Region 23PT 32 and back outer surface lateral plate 31B Chong Die with absorber 23, main body lateral plate 32 and back outer surface lateral plate 31B's The flexible position 31H of the height of elongation state is engaged at the first junction 1JT and is formed back side pars contractilis WB.Further, main body The back outer surface lateral plate 31B of lateral plate 32 and elongation state is being located at outside and not Chong Die with absorber 23 compared with absorber 23 Region 23NT, the elongate of main body lateral plate 32 and back outer surface lateral plate 31B same as ventral region A shown in Fig. 6 (a) The flatness contracting position 31L of state is engaged at the second junction 2JT and main body lateral plate 32 is not stretched with back outer surface lateral plate 31B The flexible position 31H engagement of the height of long status, and form back side pars contractilis WB.In the back side region B of diaper 1, " not with absorber 23 The region 23NT " of overlapping is same as the ventral region A of diaper 1, as shown in Fig. 2, being positioned at the absorption with composition absorbent main body 2 The outer end 23B1 of the rear end 23B of the longitudinal direction (X-direction) of body 23 compare positioned at longitudinal direction X outside (side horizontal center line CL2 it is opposite Side) end flaps part.Also, in addition to the end flaps part, also refer to the two sides with (X-direction) along longitudinal direction of absorber 23 Compare the side for being located on the outside of transverse direction Y, and being located between the lower end of longitudinal X and the lower end in side seal portion 5 of the end flaps part in portion The region of portion's fin part.

Like this, in the veutro pars contractilis WA of diaper 1 and back side pars contractilis WB, respectively as shown in figure 5, non-telescoping property Main body lateral plate 32 and outer surface lateral plate 31 with retractility are in the region 23PT Chong Die with absorber 23, in main body lateral plate 32 With the flexible position 31H engagement of height of the elongation state of outer surface lateral plate 31.Therefore, in the region 23PT Chong Die with absorber 23 In, even if releasing the elongation state of outer surface lateral plate 31, it is also easy to hinder the contraction of high flexible position 31H, in diaper 1, no Wrinkle easily is generated in absorber 23, is not easy to hinder the absorbent properties of absorber 23.

In addition, in the veutro pars contractilis WA and back side pars contractilis WB of diaper 1, respectively as shown in Fig. 6 (a), not with suction In the region 23NT that acceptor 23 is overlapped, the low of the elongation state of the outer surface lateral plate 31 of the retractility of the outer surface of diaper 1 is formed Flexible position 31L and main body lateral plate 32 are engaged, and the height of outer surface lateral plate 31 stretch position 31H and main body lateral plate 32 not by Engagement.Therefore, in region 23NT not Chong Die with absorber 23, as shown in Fig. 6 (b), when stretching for releasing outer surface lateral plate 31 When long status, it is not easy to hinder the contraction of high flexible position 31H, is not easy to produce in the outer surface lateral plate 31 for forming the outer surface of diaper 1 Raw wrinkle, the aesthetics of the outer surface of diaper 1 are good.In addition, when releasing the elongation state of outer surface lateral plate 31, such as Fig. 6 (b) It is shown, by the contraction of high flexible position 31H, with height flexible position 31H adjacent pair flatness contracting position 31L, 31L at connect The part of main body lateral plate 32 between the part of the main body lateral plate 32 of conjunction is easy in a manner of bloating to skin with respect to surface side Deformation, thus, it is easy to space G is formed between the flexible position 31H of height, as a result, skin sense of touch is easy to become well, this Outside, gas permeability improves, and use feeling is promoted.In particular, main body lateral plate 32 is therefore the piece of non-telescoping property is easier in diaper 1 Space G is formed between the flexible position 31H of Yu Yu high, is easy to become skin sense of touch well, gas permeability further increases, and uses Sense is further promoted.

In diaper 1, in the region 23PT Chong Die with absorber 23, it is formed with main body lateral plate 32 and outer surface lateral plate 31 The first disengaged position 1NJT being not engaged at the flatness contracting position 31L of stretchable sheet.That is, in the area Chong Die with absorber 23 Domain 23PT, as shown in figure 5, main body lateral plate 32 and the flatness contracting position 31L of the outer surface lateral plate 31 formed by stretchable sheet do not connect It closes.Preferably, in the ventral region A of diaper 1, main body lateral plate 32 and veutro outer surface lateral plate 31A are Chong Die with absorber 23 Region 23PT in, main body lateral plate 32 and the height of the elongation state of veutro outer surface lateral plate 31A the position 31H that stretches are engaged first It is engaged at the 1JT of position, and the flatness contracting position 31L of main body lateral plate 32 and veutro outer surface lateral plate 31A are at the first disengaged position 1NJT is not engaged.Equally, the back side region B of diaper 1, main body lateral plate 32 and back outer surface lateral plate 31B with absorber In the region 23PT of 23 overlappings, the height of the elongation state of main body lateral plate 32 and back outer surface lateral plate 31B stretches position 31H the It is engaged at one junction 1JT, and the flatness contracting position 31L of main body lateral plate 32 and back outer surface lateral plate 31B non-connects first Position 1NJT is closed to be not engaged.

In the region 23PT Chong Die with absorber 23 of diaper 1, as shown in figure 3, main body lateral plate 32 and outer surface lateral plate 31 the first junction 1JT and main body lateral plate 32 and the first disengaged position 1NJT of outer surface lateral plate 31 connects on longitudinal X It is formed, is alternately configured in the lateral direction y continuously.Preferably, in the region 23PT Chong Die with absorber 23, veutro outer surface The height of lateral plate 31A or back outer surface lateral plate 31B stretch position 31H and the first junction 1JT of main body lateral plate 32 in longitudinal X It is upper continuous, the flatness contracting position 31L of veutro outer surface lateral plate 31A or back outer surface lateral plate 31B and the first of main body lateral plate 32 Disengaged position 1NJT is continuous on longitudinal X.Also, continuous first junction 1JT connects on longitudinal X on longitudinal X The disengaged position 1NJT of continuous first is alternately configured in the lateral direction y.

In diaper 1, in the region 23PT Chong Die with absorber 23, as shown in figure 5, main body lateral plate 32 and outer surface lateral plate 31 flatness contracting position 31L is not engaged in the first disengaged position 1NJT, and main body lateral plate 32 and the height of outer surface lateral plate 31 are stretched Contracting position 31H is engaged in the first junction 1JT.In addition, in the region 23PT Chong Die with absorber 23, as shown in figure 3, main body Lateral plate 32 and the first junction 1JT of outer surface lateral plate 31 and the first disengaged portion of main body lateral plate 32 and outer surface lateral plate 31 Position 1NJT is continuously formed on longitudinal X, is alternately configured in the lateral direction y.Therefore, in diaper 1, absorber 23 is less susceptible to produce Raw wrinkle is less susceptible to hinder absorbent properties.

In diaper 1, in the region 23NT not Chong Die with absorber 23, such as Fig. 6 for being located at outside compared with absorber 23 (a) shown in, main body lateral plate 32 is engaged with the flatness contracting position 31L of outer surface lateral plate 31 in the second junction 2JT, main body lateral plate 32 are not engaged with the height of the outer surface lateral plate 31 position 31H that stretches in the second disengaged position 2NJT.In unfolded region 23NT connects on longitudinal X also as shown in figure 3, the disengaged position 2NJT of the second junction 2JT and second is continuous on longitudinal X Continuous the second junction 2JT and continuous second disengaged position 2NJT is alternately configured in the lateral direction y on longitudinal X.This Outside, also the same about the folded-back part of waist, the continuous second junction 2JT and continuous second on longitudinal X on longitudinal X Disengaged position 2NJT is alternately configured in the lateral direction y.In diaper 1, as shown in figure 3, in the region Chong Die with absorber 23 The boundary of longitudinal X of 23PT and region 23NT not Chong Die with absorber 23, are configured at the region Chong Die with absorber 23 The continuous disengaged position 1NJT of first junction 1JT and first on longitudinal X of 23PT not be configured at not with absorber The continuous disengaged position 2NJT of second junction 2JT and second on longitudinal X of the region 23NT of 23 overlappings is continuous, is disconnected It opens.Like this, when in the region 23PT Chong Die with absorber 23 with longitudinal X's of region 23NT or not Chong Die absorber 23 Boundary when continuous first junction 1JT and the second junction 2JT is disconnected on longitudinal X, is less susceptible to generate in absorber 23 Wrinkle is less susceptible to hinder absorbent properties.

It is less also easy to produce wrinkle from the region 23PT absorber 23 Chong Die with absorber 23, is less susceptible to hinder absorbent properties From the perspective of, in the region 23PT Chong Die with absorber 23, the first junction of main body lateral plate 32 and outer surface lateral plate 31 1JT is preferably formed in the whole region of the flexible position 31H of height of outer surface lateral plate 31.Preferably, diaper 1 is made to be unfolded and stretch In the state of length, overlook veutro outer surface lateral plate 31A or back outer surface lateral plate 31B height stretch position 31H when, by the height The whole region in region that the profile of flexible position 31H surrounds forms the first junction 1JT.

In addition, in diaper 1, as shown in figure 5, position, that is, main body of the fixed position of absorbent main body 2 and exterior body 3 is solid Surely the coating position of bonding agent 4 is used, and main body lateral plate 32 and outer surface lateral plate 31 in the region 23PT Chong Die with absorber 23 The first junction 1JT position overlapping.When being overlapped like this, in the region 23PT Chong Die with absorber 23, absorber 23 are less also easy to produce wrinkle.When cross-section observation as shown in Figure 5, from the viewpoint of absorber 23 is not likely to produce wrinkle, main body is solid It is fixed to be partly overlapped in the lateral direction y with the coated portion of bonding agent 4 and the first junction 1JT, but preferably the first joint portion The whole region of the lateral Y of position 1JT is contained in the range of the fixed lateral Y with the coated portion of bonding agent 4 of main body.

From the viewpoint of keeping said effect more significant, in diaper 1, one or more such as flowering structure is preferably included It is a.

Overlooking as shown in Figure 2 is unfolded diaper 1 and when the state of elongation, wrinkle and prevents from inhaling from preventing from generating in absorber It is opposite with the length of lateral Y of region 23PT that absorber 23 is overlapped about ventral region A from the perspective of receiving performance decline Summation (the length of the lateral Y of each above-mentioned side flaps part of the length of the lateral Y for the region 23NT that Yu Buyu absorber 23 is overlapped The summation of degree) ratio ((L_23PT/L_23NT) × 100) it is preferably 20% or more, more preferably 30% or more, also, preferably 65% hereinafter, more preferably 55% hereinafter, specifically, it is preferable that for 20% or more 65% hereinafter, more preferably 30% or more 55% or less.Also, it is also the same about back side region B, the length of the lateral Y of the region 23PT Chong Die with absorber 23 relative to Summation (the length of the lateral Y of each above-mentioned side flaps part of the length of the lateral Y of region 23NT not Chong Die with absorber 23 Summation) ratio ((L_23PT/L_23NT) × 100) it is preferably 20% or more, more preferably 30% or more, also, preferably 65% Hereinafter, more preferably 55% hereinafter, specifically, it is preferable that be 20% or more 65% hereinafter, more preferably 30% or more 55% with Under.

In the state that diaper 1 is unfolded in vertical view as shown in Figure 2 and extends, about ventral region A, as main body lateral plate 32 With the summation of the area of each first junction 1JT of the junction of the flexible position 31H of height of veutro outer surface lateral plate 31A (S_1JT) area (S relative to the region 23PT Chong Die with absorber 23_23PT) ratio ((S_1JT/S_23PT) × 100) preferably 25% or more, more preferably 35% or more, also, preferably 70% hereinafter, more preferably 60% hereinafter, specifically, it is preferable that For 25% or more 70% hereinafter, more preferably 35% or more 60% or less.In addition, also same with ventral region A about back side region B Sample.

In addition, when as shown in Figure 5 to making the state of the expansion of diaper 1 and elongation carry out cross-section observation, about ventral region A The region 23PT Chong Die with absorber 23, the height as main body lateral plate 32 and veutro outer surface lateral plate 31A stretches position 31H's The length (W1) of the lateral Y of first junction 1JT of junction stretches position 31H's relative to the height of outer surface lateral plate 31 The ratio ((W1/W2) × 100) of the length (W2) of lateral Y is preferably 60% or more, and more preferably 80% or more, also, preferably For 150% hereinafter, more preferably 120% hereinafter, specifically, it is preferable that be 60% or more 150% hereinafter, more preferably 80% with Upper 120% or less.In addition, about back side region B, it is also same as ventral region A.

By being set as above range, can not only prevent from generating wrinkle in absorber, additionally it is possible to pass through formation and leakage prevention sheet Non- bonding site and generate gap, can be easier to obtain improve gas permeability effect.

In addition, when as shown in Figure 5 to making the state of the expansion of diaper 1 and elongation carry out cross-section observation, about ventral region A The region 23PT Chong Die with absorber 23, the height as main body lateral plate 32 and veutro outer surface lateral plate 31A stretches position 31H's The flatness contracting position 31L of the length (W1) of the lateral Y of first junction 1JT of junction relative to outer surface lateral plate 31 The ratio ((W1/W3) × 100) of the length (W3) of lateral Y is preferably 50% or more, and more preferably 70% or more, also, preferably For 140% hereinafter, more preferably 120% hereinafter, specifically, it is preferable that be 50% or more 140% hereinafter, more preferably 70% with Upper 120% or less.In addition, also same as ventral region A about back side region B.

In addition, when as shown in Figure 5 to making the state of the expansion of diaper 1 and elongation carry out cross-section observation, about ventral region A The region 23PT Chong Die with absorber 23, the height of outer surface lateral plate 31 stretch position 31H lateral Y length (W2) relative to Ratio as absorbent main body 2 and the length (W4) of the fixed lateral Y with bonding agent 4 of the main body of the fixed position of exterior body 3 ((W2/W4) × 100) is preferably 60% or more, more preferably 80% or more, also, preferably 150% hereinafter, more preferably 120% hereinafter, specifically, it is preferable that for 60% or more 150% hereinafter, more preferably 80% or more 120% or less.In addition, closing In back side region, B is also same as ventral region A.

In addition, in the state that diaper 1 is unfolded in vertical view as shown in Figure 2 and extends, about ventral region A, as main body The summation of the area of each second junction 2JT of the junction of the flatness contracting position 31L of lateral plate 32 and outer surface lateral plate 31 (S_2JT) area (S relative to region 23NT not Chong Die with absorber 23_23NT) ratio ((S_2JT/S_23NT) × 100) preferably 20% or more, more preferably 35% or more, also, preferably 75% hereinafter, more preferably 65% hereinafter, specifically, it is preferable that For 20% or more 75% hereinafter, more preferably 35% or more 65% or less.In addition, about back side region B, also with ventral region A Equally.

By being set as above range, hot solvent coating amount can be reduced, makes rigid decline, thereby, it is possible to be easier to play The effect for promoting feel.

In addition, in the state that diaper 1 is unfolded in vertical view as shown in Figure 2 and extends, about ventral region A, as main body The area of each second disengaged position 2NJT at the position that the flexible position 31H of the height of lateral plate 32 and outer surface lateral plate 31 is not engaged Summation (S_2NJT) area (S relative to region 23NT not Chong Die with absorber 23_23NT) ratio ((S_2NJT/S_23NT)× It 100) is preferably 25% or more, more preferably 35% or more, also, preferably 80% hereinafter, more preferably 65% hereinafter, specific For, preferably 25% or more 80% hereinafter, more preferably 35% or more 65% or less.In addition, about back side region B, also with Ventral region A is same.

By being set as above range, hot solvent coating amount can be reduced, makes rigid decline, thereby, it is possible to be easier to play to make The effect that feel is promoted.

Further, in vertical view as shown in Figure 2 diaper 1 is unfolded and when the state of elongation, about ventral region A not with suction The region 23NT, the summation (S of the area of each second disengaged position 2NJT that acceptor 23 is overlapped_2NJT) relative to each second joint portion Summation (the S of the area of position 2JT_2JT) ratio ((S_2NJT/S_2JT) × 100) be preferably 100% or more, more preferably 200% with On, also, preferably 1000% hereinafter, more preferably 800% hereinafter, specifically, it is preferable that for 100% or more 1000% with Under, more preferably 200% or more 800% or less.In addition, the region 23NT not Chong Die with absorber 23 about back side region B, Also same as the region 23NT not Chong Die with absorber 23 of ventral region A.

In addition, to diaper 1 being unfolded and when the state of elongation carries out cross-section observation shown in such as Fig. 6 (a), about lateral region of abdomen The region 23NT not Chong Die with absorber 23 of domain A, as the flatness contracting position 31L's of main body lateral plate 32 and outer surface lateral plate 31 The length (W5) of the lateral Y of second junction 2JT of junction stretches position 31H's relative to the height of outer surface lateral plate 31 The ratio ((W5/W2) × 100) of the length (W2) of lateral Y is preferably 50% or more, and more preferably 70% or more, also, preferably For 150% hereinafter, more preferably 100% hereinafter, specifically, it is preferable that be 50% or more 150% hereinafter, more preferably 70% with Upper 100% or less.In addition, about back side region B, it is also same as ventral region A.

In addition, when observing as shown in Fig. 6 (a) the section for the state for making the expansion of diaper 1 and elongation, about veutro The region 23NT not Chong Die with absorber 23 of region A, the flatness contracting position 31L as main body lateral plate 32 and outer surface lateral plate 31 Junction the second junction 2JT lateral Y flatness contracting position 31L of the length (W5) relative to outer surface lateral plate 31 The ratio ((W5/W3) × 100) of length (W3) of lateral Y be preferably 40% or more, more preferably 70% or more, also, excellent 140% is selected as hereinafter, more preferably 100% hereinafter, specifically, it is preferable that for 40% or more 140% hereinafter, more preferably 70% Above 100% or less.In addition, about back side region B, it is also same as ventral region A.

In addition, being closed when the shown section to the state for making the expansion of diaper 1 and elongation such as Fig. 5 and Fig. 6 (a) is observed In ventral region A, the first of the junction of the flexible position 31H of height as main body lateral plate 32 and veutro outer surface lateral plate 31A The length (W1) of the lateral Y of junction 1JT is relative to the flatness contracting position 31L as main body lateral plate 32 and outer surface lateral plate 31 Junction the second junction 2JT lateral Y length (W5) ratio ((W1/W5) × 100) be preferably 50% with On, more preferably 70% or more, also, preferably 200% hereinafter, more preferably 150% hereinafter, specifically, it is preferable that be 50% or more 200% hereinafter, more preferably 70% or more 150% or less.In addition, about back side region B, also with ventral region A Equally.

The forming material of each section of above-mentioned diaper 1 is illustrated.

As positive dough sheet 21, back sheet 22, absorber 23 and the leakage-proof turnup 24 etc. for constituting absorbent main body 2, Neng Gouwu Especially limit using a variety of materials etc. used in the absorbent commodities such as disposable diaper all the time.For example, as front Piece 21 is able to use non-woven fabrics, apertured film of single or multi-layer structure etc..As back sheet 22, it is able to use the tree of penetrability Adipose membrane etc..As absorber 23, being able to use with cotton paper includes being made of absorbent polymer particles and fibrous material The resulting structure of the absorbent core of absorbent material.In addition, being able to use the single-layer or multi-layer of water-repellancy as leakage-proof turnup 24 The non-woven fabrics etc. of structure.

As elastomeric element, (leakage-proof turnup, which is formed, uses elastomeric element 25, waist elastic members 33, leg elastic members 34 Deng), for example, can enumerate the synthetic rubber such as styrene-butadiene, butadiene, isoprene, neoprene, natural rubber, EVA, expandable polyolefin hydrocarbon, polyurethane etc..It can be rectangle, square, circle it is preferable to use section as the form of elastomeric element The threadiness (rubber covered wire etc.) of shape, ellipse or multilateral shape etc. or the form etc. of flat strip shaped (rubber strip etc.).

It, can as the fixed band-like bonding agent (not shown) for using bonding agent 4 or fixed leg elastomeric element 34 of main body With no particular limitation using the various hot-melt adhesives etc. used in the absorbent commodities such as disposable diaper all the time.Main body The fixed coating with bonding agent 4 for example using heater, in the non-skin opposite face for constituting the back sheet 22 of absorbent main body 2 and One of the skin opposite face of main body lateral plate 32 for constituting exterior body 3 is applied.

The the first junction 1JT and the second junction 2JT of main body lateral plate 32 and outer surface lateral plate 31 can pass through by Various hot-melt adhesives used all the time in the absorbent commodities such as disposable diaper etc. for example use heater to be applied And it is formed.In addition, the first junction 1JT and the second junction 2JT is able to use hot Embossing processing, ultrasonic sealing function adds Work, laser processing etc. are formed.

As the processing for forming side seal portion 5, hot Embossing processing, ultrasonic sealing function processing, laser processing etc. can be enumerated.

More than, based on embodiment preferred for this invention, the present invention is described, but the present invention is not limited to above-mentioned Embodiment is able to carry out suitable change.

For example, as shown in Figure 5 and Figure 6, outer surface lateral plate 31 is by transverse direction (Y-direction) in diaper 1 as described above Stretchable sheet with retractility is formed, and main body lateral plate 32 by the piece of non-telescoping property formed but it is also possible to be main body lateral plate 32 by It is formed in transverse direction (Y-direction) with the stretchable sheet of retractility, and outer surface lateral plate 31 is formed by the piece of non-telescoping property, it can be with It is that main body lateral plate 32 and outer surface lateral plate 31 are formed by the stretchable sheet horizontally with retractility.It is to stretch in main body lateral plate 32 When contracting piece, the extensible member of aptychus is contacted with skin, therefore, is not likely to produce crease.

In addition, being configured with stretchable sheet in both veutro pars contractilis WA and back side pars contractilis WB, but in veutro in diaper 1 Any one of pars contractilis WA and back side pars contractilis WB configure stretchable sheet.

In addition, in diaper 1, as shown in figure 5, in the region 23PT Chong Die with absorber 23, main body lateral plate 32 and appearance The flexible position 31H of the height of surface side piece 31 is engaged at the first junction 1JT, the flatness of main body lateral plate 32 and outer surface lateral plate 31 Contracting position 31L is not engaged at the first disengaged position 1NJT, and however, you can also not only main body lateral plates 32 and outer surface lateral plate 31 Height stretch position 31H engagement, main body lateral plate 32 also engages with the flatness contracting position 31L of outer surface lateral plate 31.That is, with absorption The region 23PT that body 23 is overlapped, can not also form the first disengaged position 1NJT.

In addition, in disposable diaper 1 as described above, as shown in Fig. 2, being across the ventral region A of exterior body 3, crotch area Domain C and back side region B is formed as the Breeches type disposable diaper of hourglass-shaped etc. continuous shape but it is also possible to be by exterior body 3 It is divided into the pants-type disposable of veutro exterior body, back side exterior body and crotch exterior body and the Splittable as seperated component Diaper.

In addition, in disposable diaper 1 as described above, as shown in Figure 1, being the pants-type disposable with exterior body 3 Disposable diaper of the diaper but it is also possible to be deploying type.

In addition, absorbent commodity as described above is as shown in Figure 1, be Breeches type disposable diaper 1 but it is also possible to be women The sanitary napkin of pants type.

About above embodiment, absorbent commodity below is further disclosed.

<1>

A kind of absorbent commodity, includes ventral region, back side region and positioned at the crotch region between them in the longitudinal direction, With the absorbent main body across the ventral region and the back side region with the absorber containing absorbent material, and The veutro pars contractilis and back side pars contractilis horizontally extended, the absorption are respectively provided in the ventral region and the back side region In property article,

The veutro pars contractilis and the back side pars contractilis are respectively provided with the main body lateral plate engaged with the absorbent main body With the outer surface lateral plate for the non-skin opposite face for being configured at the main body lateral plate,

At least one of the main body lateral plate and the outer surface lateral plate are stretchable sheets horizontally with retractility,

In the stretchable sheet, the relatively high high flexible position low flatness contracting position opposite with retractility of retractility is in transverse direction On alternately configure,

At least one of the veutro pars contractilis and the back side pars contractilis be configured with the stretchable sheet, with the suction In the region of acceptor overlapping, it is formed with the main body lateral plate and the outer surface lateral plate are engaged at the high position of stretching the One junction is formed with the main body in the not region Chong Die with the absorber for being located at outside compared with the absorber The second junction that lateral plate is engaged with the outer surface lateral plate at flatness contracting position, and be formed with the main body lateral plate and be somebody's turn to do The second disengaged position that outer surface lateral plate is not engaged at the high flexible position.

<2>

Absorbent commodity as described in above-mentioned<1>, wherein in the region Chong Die with the absorber, be formed with described The first disengaged position that main body lateral plate is not engaged with the outer surface lateral plate at flatness contracting position, this first non-connects It closes position and first junction is continuously formed in the longitudinal direction, and horizontally alternately configure.

<3>

Absorbent commodity as described in above-mentioned<1>or<2>, wherein in the region Chong Die with the absorber, described One junction is formed in the whole region at the high flexible position.

<4>

Absorbent commodity as described in any one of above-mentioned<1>~<3>, wherein the main body lateral plate and the outer surface One of lateral plate is the stretchable sheet, and another one is the piece of non-retractility.

<5>

Absorbent commodity as described in any one of above-mentioned<1>~<4>, wherein

The absorbent commodity has exterior body, which is configured at the non-skin of the absorbent main body with respect to surface side And the absorbent main body is fixed,

The exterior body has the main body lateral plate and the outer surface lateral plate,

The absorbent main body in the position of the fixed position of the exterior body and the region Chong Die with the absorber First junction position overlapping.

<6>

Absorbent commodity as described in any one of above-mentioned<1>~<5>, wherein the outer surface lateral plate is horizontally Stretchable sheet with retractility, the main body lateral plate are the piece of the non-telescoping property without retractility.

<7>

Absorbent commodity as described in any one of above-mentioned<1>~<6>, wherein the outer surface lateral plate includes constituting institute It states the veutro outer surface lateral plate of ventral region and constitutes the back outer surface lateral plate in the back side region,

The veutro outer surface lateral plate of retractility and the back outer surface lateral plate can be in the extensions with elastomeric element It stretches on the identical direction in direction.

<8>

Absorbent commodity as described in any one of above-mentioned<1>~<7>, wherein the veutro pars contractilis and the back side The main body lateral plate of the respective non-telescoping property of pars contractilis with retractility elongation state the outer surface lateral plate, with First junction is formed in the region of the absorber overlapping.

<9>

Absorbent commodity as described in above-mentioned<2>, wherein about the folded-back part of waist, not Chong Die with the absorber Region in, the folded-back part of the main body lateral plate and the outer surface lateral plate is formed with second junction, this second connects Close the described second disengaged position of position and the main body lateral plate and the folded-back part of the outer surface lateral plate continuous landform in the longitudinal direction At, and horizontally alternately configure.

<10>

Absorbent commodity as described in above-mentioned<9>, wherein the region Chong Die with the absorber with or not the absorption Longitudinal boundary in the folded region of weight, in the longitudinal direction continuous first junction and the first disengaged position It is not continuous with continuous second junction and the second disengaged position in the longitudinal direction, but disconnect.

<11>

Absorbent commodity as described in any one of above-mentioned<1>~<10>, wherein in the ventral region, with the suction Summation of the lateral length in the region of acceptor overlapping relative to the length of the transverse direction in Chong Die with absorber region Ratio ((L_23PT/L_23NT) × 100) it is 20% or more, preferably 30% or more, and for 65% hereinafter, preferably 55% or less.

<12>

Absorbent commodity as described in any one of above-mentioned<1>~<11>, wherein in the back side region, with the suction Summation of the lateral length in the region of acceptor overlapping relative to the length of the transverse direction in Chong Die with absorber region Ratio ((L_23PT/L_23NT) × 100) it is 20% or more, preferably 30% or more, and for 65% hereinafter, preferably 55% or less.

<13>

Absorbent commodity as described in any one of above-mentioned<1>~<12>, wherein the ventral region and the back side are stretched In at least one of contracting portion, the summation (S of the area of first junction_1JT) relative to the area Chong Die with the absorber Area (the S in domain_23PT) ratio ((S_1JT/S_23PT) × 100) be 25% or more, preferably 35% or more, and be 70% hereinafter, Preferably 60% or less.

<14>

Absorbent commodity as described in any one of above-mentioned<1>~<13>, wherein the ventral region or the back side are stretched In the region Chong Die with the absorber in contracting portion, as the flexible position of the height of the main body lateral plate and the outer surface lateral plate Transverse direction of the lateral length (W1) of first junction of junction relative to the flexible position of height of the outer surface lateral plate Length (W2) ratio ((W1/W2) × 100) be 60% or more, preferably 80% or more, and be 150% hereinafter, it is preferred that It is 120% or less.

<15>

Absorbent commodity as described in any one of above-mentioned<1>~<14>, wherein the ventral region or the back side are stretched In the region Chong Die with the absorber in contracting portion, the lateral length (W1) of first junction is relative to the appearance The ratio ((W1/W3) × 100) of the lateral length (W3) at the flatness contracting position of surface side piece is 50% or more, preferably 70% with On, and for 140% hereinafter, preferably 120% or less.

<16>

Absorbent commodity as described in above-mentioned<5>, wherein the ventral region or the back side pars contractilis with the suction In the region of acceptor overlapping, the lateral length (W2) at the flexible position of the height of the outer surface lateral plate is relative to as the absorption Property main body and the exterior body fixed position the fixed bonding agent of main body lateral length (W4) ratio ((W2/W4) It × 100) is 60% or more, preferably 80% or more, and for 150% hereinafter, preferably 120% or less.

<17>

Absorbent commodity as described in any one of above-mentioned<1>~<16>, wherein the ventral region and the back side are stretched In at least one of contracting portion, the summation (S of the area of second junction_2JT) relative to not Chong Die with the absorber Area (the S in region_23NT) ratio ((S_2JT/S_23NT) × 100) be 20% or more, preferably 35% or more, and for 75% with Under, preferably 65% or less.

<18>

Absorbent commodity as described in any one of above-mentioned<1>~<17>, wherein the area at the second disengaged position Summation (S_2NJT) the not region Chong Die with the absorber relative to the veutro pars contractilis or the back side pars contractilis Area (S_23NT) ratio ((S_2NJT/S_23NT) × 100) it is 25% or more, preferably 35% or more, and for 80% hereinafter, excellent It is selected as 65% or less.

<19>

Absorbent commodity as described in any one of above-mentioned<1>~<18>, wherein the veutro pars contractilis or the back side In the not region Chong Die with the absorber of pars contractilis, the summation (S of the area at the second disengaged position_2NJT) relative to Summation (the S of the area of second junction_2JT) ratio ((S_2NJT/S_2JT) × 100) it is 100% or more, preferably 200% or more, and for 1000% hereinafter, preferably 800% or less.

<20>

Absorbent commodity as described in any one of above-mentioned<1>~<19>, wherein the ventral region or the back side are stretched In the not region Chong Die with the absorber in contracting portion, the lateral length (W5) of second junction is relative to described outer The ratio ((W5/W2) × 100) of the lateral length (W2) at the flexible position of the height of surface lateral plate is 50% or more, preferably 70% More than, and for 150% hereinafter, preferably 100% or less.

<21>

Absorbent commodity as described in any one of above-mentioned<1>~<20>, wherein the ventral region or the back side are stretched In the not region Chong Die with the absorber in contracting portion, the lateral length (W5) of second junction is relative to described outer The ratio ((W5/W3) × 100) of the lateral length (W3) at the flatness contracting position of surface lateral plate is 40% or more, preferably 70% More than, and for 140% hereinafter, preferably 100% or less.

<22>

Absorbent commodity as described in any one of above-mentioned<1>~<21>, wherein the ventral region and the back side are stretched In at least one of contracting portion, transverse direction of the lateral length (W1) of first junction relative to second junction Length (W5) ratio ((W1/W5) × 100) be 50% or more, preferably 70% or more, and be 200% hereinafter, it is preferred that It is 150% or less.

<23>

Absorbent commodity as described in any one of above-mentioned<1>~<22>, wherein constitute the veutro of the outer surface lateral plate The veutro outer surface lateral plate and the back side appearance in outer surface lateral plate, back outer surface lateral plate and crotch outer surface lateral plate three Surface side piece horizontally has retractility, and it is non-retractility which, which does not have retractility,.

<24>

Absorbent commodity as described in above-mentioned<23>, wherein veutro outer surface lateral plate and the back outer surface side Piece has the structure for engaging linear elastic yarn on one side in the tensile fibrous layer based on non-elastic fiber, includes As two fibre plates of the fibrous layer and as the elastomeric element for the elastic yarn being configured between two panels.

<25>

Absorbent commodity as described in above-mentioned<24>, wherein multiple elastomeric elements are non-crossly a side The mode extended in (transverse direction) arranges.

<26>

Absorbent commodity as described in above-mentioned<24>or<25>, wherein the elastomeric element is with substantially non-elongate shape State and two fiber chip bondings.

<27>

Absorbent commodity as described in any one of above-mentioned<24>~<26>, wherein in the fibre plate (with non-resilient fibre Tensile fibrous layer based on dimension) and the elastomeric element that engages between there is no bonding agents.

<28>

Absorbent commodity as described in any one of above-mentioned<24>~<27>, wherein the high flexible position and described low Flexible position respectively in, the length when elongation of the extending direction about the elastomeric element is set as 100% when that will shrink When, premised on the lateral length at the flexible position of the height is greater than the lateral length at the flatness contracting position, the high pars contractilis Position be 130% or more, preferably 300% or more, upper limit value be 600% hereinafter, and flatness contracting position be 200% with Under, preferably 170% hereinafter, lower limit value is 100% or more.

Industrial utilization possibility

In accordance with the invention it is possible to be not likely to produce fold in absorber and be not easy to hinder absorbent properties, absorbent commodity Aesthetics it is good and use feeling improves.

Claims

1. a kind of absorbent commodity, in the longitudinal direction including ventral region, back side region and positioned at the crotch region between them, packet Include the absorbent main body across the ventral region and the back side region with the absorber containing absorbent material, and The ventral region and the back side region are respectively provided with the veutro pars contractilis and back side pars contractilis horizontally extended, the absorbability Article is characterized in that:

The veutro pars contractilis and the back side pars contractilis are respectively provided with the main body lateral plate engaged with the absorbent main body and match It is placed in the outer surface lateral plate of the non-skin opposite face of the main body lateral plate,

In the stretchable sheet, the relatively high high flexible position low flatness contracting position opposite with retractility of retractility is horizontally handed over Alternately configure,

At least one of the veutro pars contractilis and the back side pars contractilis be configured with the stretchable sheet, with the absorber In the region of overlapping, it is formed with the main body lateral plate and the outer surface lateral plate and first is connect what the high flexible position was engaged Position is closed, in the not region Chong Die with the absorber for being located at outside compared with the absorber, is formed with the main body lateral plate The second junction engaged with the outer surface lateral plate at flatness contracting position, and it is formed with the main body lateral plate and the appearance The second disengaged position that surface side piece is not engaged at the high flexible position.

2. absorbent commodity as described in claim 1, it is characterised in that:

In the region Chong Die with the absorber, it is formed with the main body lateral plate and the outer surface lateral plate contracts in the flatness The first disengaged position that position is not engaged, the first disengaged position and first junction are continuous in the longitudinal direction Ground is formed, and is horizontally alternately configured.

3. absorbent commodity as claimed in claim 1 or 2, it is characterised in that:

In the region Chong Die with the absorber, first junction is formed in the entire area at the high flexible position Domain.

4. absorbent commodity according to any one of claims 1 to 3, it is characterised in that:

One of the main body lateral plate and the outer surface lateral plate are the stretchable sheets, and another one is the piece of non-retractility.

5. absorbent commodity as described in any one of claims 1 to 4, it is characterised in that:

The absorbent commodity has exterior body, and the non-skin that the exterior body is configured at the absorbent main body is consolidated with respect to surface side The fixed absorbent main body,

The absorbent main body and the institute in the position of the fixed position of the exterior body and the region Chong Die with the absorber State the position overlapping of the first junction.

6. such as absorbent commodity according to any one of claims 1 to 5, it is characterised in that:

Summation (the S of the area at the second disengaged position_2NJT) relative to the veutro pars contractilis or the back side pars contractilis Not area (the S in the region Chong Die with the absorber_23NT) ratio ((S_2NJT/S_23NT) × 100) it is 25% or more, and be 80% or less.

7. such as absorbent commodity according to any one of claims 1 to 6, it is characterised in that:

In the not region Chong Die with the absorber of the veutro pars contractilis or the back side pars contractilis, described second is disengaged Summation (the S of the area at position_2NJT) relative to second junction area summation (S_2JT) ratio ((S_2NJT/S_2JT) × 100) it is 100% or more, and is 1000% or less.

8. such as absorbent commodity according to any one of claims 1 to 7, it is characterised in that:

The outer surface lateral plate is stretchable sheet horizontally with retractility, and the main body lateral plate is without the non-of retractility The piece of retractility.

9. such as absorbent commodity according to any one of claims 1 to 8, it is characterised in that:

The outer surface lateral plate includes the veutro outer surface lateral plate for constituting the ventral region and the back for constituting the back side region Side external surface lateral plate,

The veutro outer surface lateral plate of retractility and the back outer surface lateral plate can be in the extending directions with elastomeric element It stretches on identical direction.

10. such as absorbent commodity according to any one of claims 1 to 9, it is characterised in that:

The veutro pars contractilis and the main body lateral plate of the respective non-telescoping property of the back side pars contractilis with retractility The outer surface lateral plate of elongation state, is formed with first junction in the region Chong Die with the absorber.

11. absorbent commodity as claimed in claim 2, it is characterised in that:

About the folded-back part of waist, in region not Chong Die with the absorber, the main body lateral plate and the outer surface side The folded-back part of piece is formed with second junction, the folding of second junction and the main body lateral plate and the outer surface lateral plate The described second disengaged position in the portion of returning is continuously formed in the longitudinal direction, and is horizontally alternately configured.

12. absorbent commodity as claimed in claim 11, it is characterised in that:

Longitudinal boundary in the region Chong Die with the absorber and the or not the region Chong Die absorber, in the longitudinal direction Continuous first junction and the first disengaged position not with continuous second junction in the longitudinal direction It is continuous with the described second disengaged position, but disconnect.

13. the absorbent commodity as described in any one of claim 1~12, it is characterised in that:

In the ventral region, the lateral length in the region Chong Die with the absorber is not relative to Chong Die with the absorber Region lateral length summation ratio ((L_23PT/L_23NT) × 100) it is 20% or more, and be 65% or less.

14. the absorbent commodity as described in any one of claim 1~13, it is characterised in that:

In the back side region, the lateral length in the region Chong Die with the absorber is not relative to Chong Die with the absorber Region lateral length summation ratio ((L_23PT/L_23NT) × 100) it is 20% or more, and be 65% or less.

15. the absorbent commodity as described in any one of claim 1~14, it is characterised in that:

In at least one of the ventral region and the back side pars contractilis, the summation of the area of first junction (S_1JT) area (S relative to the region Chong Die with the absorber_23PT) ratio ((S_1JT/S_23PT) × 100) be 25% with On, and be 70% or less.

16. the absorbent commodity as described in any one of claim 1~15, it is characterised in that:

In the ventral region or the region Chong Die with the absorber of the back side pars contractilis, as the main body lateral plate with The lateral length W1 of first junction of the junction at the flexible position of the height of the outer surface lateral plate is relative to described outer The ratio ((W1/W2) × 100) of the lateral length W2 at the flexible position of the height of surface lateral plate is 60% or more, and is 150% Below.

17. the absorbent commodity as described in any one of claim 1~16, it is characterised in that:

In the ventral region or the region Chong Die with the absorber of the back side pars contractilis, first junction Lateral length W1 relative to the length W3 of the transverse direction at the flatness contracting position of the outer surface lateral plate ratio ((W1/W3) × 100) it is 50% or more, and is 140% or less.

18. absorbent commodity as claimed in claim 5, it is characterised in that:

In the ventral region or the region Chong Die with the absorber of the back side pars contractilis, the height of the outer surface lateral plate The lateral length W2 at flexible position is solid relative to the main body as the absorbent main body and the fixed position of the exterior body Surely it is 60% or more with the ratio ((W2/W4) × 100) of the lateral length W4 of bonding agent, and is 150% or less.

19. the absorbent commodity as described in any one of claim 1~18, it is characterised in that:

In at least one of the ventral region and the back side pars contractilis, the summation of the area of second junction (S_2JT) area (S relative to region not Chong Die with the absorber_23NT) ratio ((S_2JT/S_23NT) × 100) be 20% with On, and be 75% or less.

20. the absorbent commodity as described in any one of claim 1~19, it is characterised in that:

Summation (the S of the area at the second disengaged position_2NJT) relative to the veutro pars contractilis or the back side pars contractilis Not area (the S in the region Chong Die with the absorber_23NT) ratio ((S_2NJT/S_23NT) × 100) it is 35% or more, and be 65% or less.

21. the absorbent commodity as described in any one of claim 1~20, it is characterised in that:

In the not region Chong Die with the absorber of the veutro pars contractilis or the back side pars contractilis, described second is disengaged Summation (the S of the area at position_2NJT) relative to second junction area summation (S_2JT) ratio ((S_2NJT/S_2JT) × 100) it is 200% or more, and is 800% or less.

22. the absorbent commodity as described in any one of claim 1~19, it is characterised in that:

In the ventral region or the not region Chong Die with the absorber of the back side pars contractilis, second junction Lateral length W5 relative to the height of the outer surface lateral plate stretch position lateral length W2 ratio ((W5/W2) × 100) it is 50% or more, and is 150% or less.

23. the absorbent commodity as described in any one of claim 1~22, it is characterised in that:

In the ventral region or the not region Chong Die with the absorber of the back side pars contractilis, second junction Lateral length W5 relative to the outer surface lateral plate flatness contracting position transverse direction length W3 ratio ((W5/W3) × 100) it is 40% or more, and is 140% or less.

24. the absorbent commodity as described in any one of claim 1~23, it is characterised in that:

In at least one of the ventral region and the back side pars contractilis, the lateral length W1 phase of first junction Ratio ((W1/W5) × 100) for the lateral length W5 of second junction is 50% or more, and is 200% Below.

25. the absorbent commodity as described in any one of claim 1~24, it is characterised in that:

It constitutes in the veutro outer surface lateral plate, back outer surface lateral plate and crotch outer surface lateral plate three of the outer surface lateral plate The veutro outer surface lateral plate and the back outer surface lateral plate horizontally have retractility, which, which does not have, stretches Contracting is non-retractility.

26. absorbent commodity as claimed in claim 25, it is characterised in that:

Veutro outer surface lateral plate and the back outer surface lateral plate have tensile based on non-elastic fiber The structure for engaging linear elastic yarn on one side of fibrous layer, comprising two fibre plates as the fibrous layer and as being configured at The elastomeric element of the elastic yarn between two panels.

27. absorbent commodity as claimed in claim 26, it is characterised in that:

Multiple elastomeric elements in a manner of being laterally extended to arrange non-crossly.

28. the absorbent commodity as described in claim 26 or 27, it is characterised in that:

The elastomeric element is with substantially non-elongate state and two fiber chip bondings.

29. the absorbent commodity as described in any one of claim 26~28, it is characterised in that:

Bonding agent is not present between the fibre plate and the elastomeric element engaged.

30. the absorbent commodity as described in any one of claim 26~29, it is characterised in that:

The high flexible position and flatness contracting position respectively in, when the elongation of the extending direction about the elastomeric element Length when being set as 100% when that will shrink, is greater than the transverse direction at the flatness contracting position with the lateral length at the flexible position of the height Premised on length, the high flexible position is 130% or more, upper limit value be 600% hereinafter, and flatness contracting position be 200% hereinafter, lower limit value is 100% or more.