CN109982676A

CN109982676A - Disposable diaper

Info

Publication number: CN109982676A
Application number: CN201680090984.4A
Authority: CN
Inventors: 一万田俊明; 植田章之
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2019-07-05
Anticipated expiration: 2036-12-12
Also published as: JPWO2018109812A1; TW201828907A; RU2716892C1; TWI763752B; JP6847126B2; CN109982676B; WO2018109812A1

Abstract

In disposable diaper of the invention, lateral plate (3) is bonded on outer layer composite sheet (22) and configuration in the skin lateral plate (20) of the inner surface side of lateral plate (3) via connecting adhesive oxidant layer.Connecting adhesive oxidant layer (62) is in the width direction of disposable diaper, in the position of the interior lateral margin (3c) than lateral plate (3) in the outer part, lateral plate (3) is engaged with outer layer composite sheet (22), and the position in the interior lateral margin (3c) than lateral plate (3) in the inner part, outer layer composite sheet (22) is engaged with positive dough sheet (21).Outer layer adhesive layer (61) position Chong Die with interior lateral margin (3c) of lateral plate (3) on the thickness direction (Z) of disposable diaper has the discontinuities (7) of not placement of adhesives.

Description

Disposable diaper

Technical field

The present invention relates to a kind of disposable diapers.

Background technique

All the time, it is known to flat type disposable diaper, wearing in the absorbent main body comprising absorber When configuration in the width direction for being partially installed on the absorbent main body of the back side of wearer stretch retractility lateral plate And it is formed.Magic tape that the front end of lateral plate is arranged in etc. is stretched and wears diaper by such disposable diaper, therefore with regard to lateral plate For the viewpoint of the intensity at the joint portion of absorbent main body, side obtained by studying the structure at the joint portion is proposed Case.

For example, the applicant proposes a kind of disposable diaper in the past, lateral plate there are 2 pieces and be fixed on 2 pieces it Between elastomeric element, front end is provided with magic tape, the outer layer composite sheet has leakage prevention sheet and via outer layer adhesive layer Be engaged in the outer layer non-woven fabrics of the outer surface side of the leakage prevention sheet, lateral plate have the end of the absorbent main body side of elastomeric element or Its neighbouring fixed main body side adhesive layer, and will the end of the front end side of the lateral plate of the elastomeric element or it is solid nearby The end use of fixed front end side adhesive layer, the absorbent main body side of the lateral plate is Chong Die with the main body side adhesive layer Or connected reinforcement is reinforced with adhesive layer, reinforced end connecting adhesive oxidant layer and the outer layer composite sheet Engagement, on diaper width direction, the main body side adhesive layer is separated than the position of the outer layer adhesive layer in the outer part Interval is formed, the main body side adhesive layer, the reinforcement adhesive layer, the connecting adhesive oxidant layer and outer layer bonding (patent document 1) is arranged in oxidant layer in a manner of not generating gap on diaper width direction.Such disposable diaper is able to suppress The reduction of flexibility etc. and the bond strength for improving lateral plate and absorbent main body.

Existing technical literature

Patent document

Patent document 1: Japanese Patent Laid-Open 2013-46751 bulletin

Summary of the invention

The present invention provides a kind of disposable diaper comprising: absorbent main body, it includes absorbers and configuration in the absorption The outer layer composite sheet of the outer surface side of body；And lateral plate, it is mounted on one or two side of the absorbent main body.The lateral plate With 2 pieces and the elastomeric element being fixed between 2 pieces, and front end is provided with magic tape.The outer layer composite sheet Leakage prevention sheet with liquid impermeability or liquid difficulty permeability, and it is engaged in via outer layer adhesive layer the appearance of the leakage prevention sheet The outer layer non-woven fabrics of surface side.The lateral plate is engaged in the outer layer composite sheet and configuration in the side via connecting adhesive oxidant layer The skin lateral plate of the inner surface side of piece.The connecting adhesive oxidant layer is in the width direction of the disposable diaper, than institute The position of the interior lateral margin of lateral plate in the outer part is stated, by the lateral plate and the compound chip bonding of the outer layer, and in than the lateral plate The position of lateral margin in the inner part engages the outer layer composite sheet with the skin lateral plate.In the thickness side of the disposable diaper The upward outer layer adhesive layer position Chong Die with the interior lateral margin of the lateral plate has the discontinuities of not placement of adhesives.

Detailed description of the invention

Fig. 1 is the expansion for indicating the disposable diaper of one embodiment of the present invention and the top view of elongation state.

Fig. 2 is the perspective view for indicating the wearing effect of disposable diaper shown in FIG. 1.

Fig. 3 is the lateral plate for indicating disposable diaper shown in FIG. 1 and the enlarged plan view near it.

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

Fig. 5 is the enlarged cross-sectional view for indicating the juncture of each component parts near the interior lateral margin of lateral plate shown in Fig. 4.

Specific embodiment

Though diaper documented by patent document 1 wears diaper the stretching such as magic tape of the front end of lateral plate will be arranged in When, it is able to suppress the generation of the joint portion of lateral plate and absorbent main body or splitting near it or breakage, but absorbing in configuration There is room for improvement in the intensity of the outer layer composite sheet of the outer surface side of property main body.

The issue of the present invention is to provide a kind of disposable diapers for being able to solve disadvantage possessed by the prior art.

Hereinafter, being described with reference to the accompanying drawings to the present invention is based on its preferred embodiment.

As shown in Figure 1, disposable diaper 1 (hereinafter also referred to as diaper 1) of the invention includes: absorbent main body 2, packet Outer layer composite sheet 22 containing absorber 23 and the outer surface side configured in the absorber 23；With lateral plate 3,3, it is mounted on the absorption The both sides of property main body 2.

As shown in Figure 1, absorbent main body 2 is under expansion and elongation state with the shape of lengthwise, comprising: veutro portion A, When wearing positioned at the veutro of wearer；Drosal part B is located at the back side of wearer；With crotch C, it is located at crotch part.Such as figure Shown in 1, absorbent main body 2 is rectangular shape in the state of planar extension.Lateral plate 3,3 is respectively from absorbent main body 2 The mode that protrudes outward of two sides edge be mounted on the both sides of the absorbent main body 2 in drosal part B.

Herein, the expansion of diaper 1 and elongation state be instigate the elastomeric element of each section to extend and by the urine of unfolded state Cloth 1 is extended to as design size (with size phase in the state of excluding the influence of elastomeric element completely when planar extension State until together).

The length direction of disposable diaper 1 is the Y-direction in figure, and the length direction with absorbent main body is the same direction. The width direction of disposable diaper 1 is the X-direction in figure, and the width direction with absorbent main body 2 is the same direction.Below In explanation, the direction corresponding with diaper length direction of the component parts of the length direction of diaper 1 or the diaper 1 is also referred to as The direction corresponding with diaper width direction of the component parts of the width direction of diaper 1 or the diaper 1 is also referred to as X by Y-direction Direction.In addition, the inner surface of the component parts of diaper 1 or diaper 1 is when wearing towards the face of the skin side of wearer, diaper 1 or diaper 1 component parts outer surface be when wearing towards the side opposite with the skin of wearer face.In turn, it urinates It is the absorbent main body side in the width direction of diaper 1, the structure of diaper 1 or diaper 1 on the inside of the component parts of cloth 1 or diaper 1 At be on the outside of component diaper 1 width direction on 4 side of magic tape.

As shown in Figure 1 and Figure 4, absorbent main body 2 have the positive dough sheet 21 of liquid permeability, outer layer composite sheet 22 and between The absorber 23 of liquid retainability between two pieces 21,22.Outer layer composite sheet 22 has liquid impermeability or liquid difficult thoroughly The leakage prevention sheet 22a of the property crossed (include water-repellancy), and it is bonded on via outer layer adhesive layer 61 outer surface side of leakage prevention sheet 22a The outer layer non-woven fabrics 22b of (being the side Q in Fig. 4).The plan view shape of outer layer non-woven fabrics 22b is identical as absorbent main body 2, such as Fig. 4 institute Show, leakage prevention sheet 22a has plan view shape identical with outer layer non-woven fabrics 22b other than the width of X-direction is smaller.Due to depositing It is good in the skin sense of touch of outer layer non-woven fabrics 22b, diaper outer surface.

In addition, the both sides of the length direction in absorbent main body 2, as shown in Figure 1, being equipped with along the length direction vertical Body encirclement, which is formed, uses piece 24,24.As shown in figure 4, three-dimensional shield formation is with piece 24 in the two sides of the length direction of absorbent main body 2 Portion is fixed on positive dough sheet 21, the outer layer composite sheet 22 extended from the lateral margin of the positive dough sheet and structure via adhesive layer 62,66~68 At the piece 31 of lateral plate 3.Adhesive layer 62,66,67 is the substantially overall length throughout absorbent main body 2 and is formed, but adhesive layer 68 settings are in veutro portion A and drosal part B, without being arranged in crotch C.

Each three-dimensional shield formation with piece 24 near the ora terminalis on the inside of the width direction (X-direction) of absorbent main body 2 along There is the ora terminalis elastomeric element 25 of three-dimensional shield formation to pass through the convergent force of the elastomeric element 25, crotch C when wearing In the part away from the ora terminalis defined width leave positive dough sheet 21 and form three-dimensional shield.In addition, as shown in Figure 1, existing in configuration The part of the calf circumference of the length direction both sides of absorbent main body 2 is configured with the elastomeric element 26 of leg creases formation.

In the present embodiment, use 1 piece as three-dimensional shield formation piece 24 in not folded mode.It can also generation For the structure, constructs using 1 piece is folded into 2 layers and engaged 2 interlayer with the heat-fused portion for spreading shape configuration For the structure of 1 sheet.In addition, 1 piece only can also be set as 2 layers of construction in the part of secure resilient member 25 and used.

The thermal welding of the interlayer engagement of 2 layers of construction portion is able to use such as heat sealing, ultrasonic sealing function, high frequency envelope Conjunction or the combination of more than two kinds in these etc..It is further possible to be engaged by the bonding agent for spreading shape configuration.

In addition, sealing pattern is preferably the dot pattern for spreading shape and forming heat-fused portion, but not limited to this, for example, It can be and form the linear pattern or lattice-shaped pattern of one or more linear heat-fused portion in length direction of diaper 1 etc. Deng.In addition it is also possible to use sealing pattern of more than two kinds simultaneously.

Three-dimensional shield in diaper 1 forms the inner surface that the both sides of absorbent main body 2 are formed with piece 24.In addition, three-dimensional Encirclement formation piece 24 is engaged in configuration in the both sides of the positive dough sheet 21 of the inner surface side of absorber 23.

Positive dough sheet 21 and the configuration of the state for the both sides being overlapped in the Y-direction of the positive dough sheet 21 with part of it are in interior table A pair of of three-dimensional shield of surface side, which is formed, wears skin lateral plate 20 opposite with the skin of wearer when diaper 1 with the formation of piece 24.Urine Skin lateral plate 20 in cloth 1 includes positive dough sheet 21 and the three-dimensional shield formation piece 24 for being attached at its two sides.Skin lateral plate 20 The position of inner surface side is at least leaned on than the lateral plate 3 in be partly arranged at Chong Die with lateral plate 3.Skin lateral plate can also be for only Structure comprising positive dough sheet.

In addition, " inner surface side of piece " is the side P (surface side of the skin side towards wearer of lateral plate) in Fig. 4, " piece Outer surface side " is the side Q (surface side of the direction side opposite with the skin of wearer of lateral plate) in Fig. 4.

As shown in Figure 1, diaper 1 is relative to by the length direction of 2 equal parts in width direction (X-direction) of absorbent main body 2 Central Line CL is symmetrically formed.Structure accordingly, with respect to lateral plate 3,3 and they connect with magic tape 4 with absorbent main body 2 Conjunction mode is mainly illustrated by taking the lateral plate in the left side of Fig. 1 as an example, and the lateral plate on right side is also same other than bilateral symmetry 's.

As shown in figure 3, the lateral plate 3 in diaper 1 is rectangle in the state of planar extension.In addition, as shown in figure 4, side Piece 3 includes fabric 2 pieces 31,32 of nonwoven；With multiple elastomeric elements 33, to be extended in diaper width direction (X-direction) State be fixed between 2 pieces 31,32.It is provided in the front end 3a of lateral plate 3 for lateral plate 3 to be fixed on other positions Magic tape 4.As shown in figure 4, magic tape 4 is engaged in the piece 32 of the outer surface side of lateral plate 3 via adhesive layer 65.

As shown in figure 3, elastomeric element 33 is configured respectively along the width direction (X-direction) of diaper 1.In addition, in each lateral plate 3 Multiple elastomeric elements 33 separate roughly equal interval on the length direction (Y-direction) of diaper and configure.

About the lateral plate 3 in diaper 1, as shown in figure 4, between constituting 2 pieces 31,32 of the lateral plate 3 via adhesive layer 35, 36,37 engagement.These adhesive layers 35,36,37 extend in diaper length direction (Y-direction) and are formed.In addition, at these In adhesive layer 35,36,37, multiple elastomeric elements 33 are fixed on 2 via the bonding agent for constituting each adhesive layer with elongation state Between a piece 31,32, and at the position of no configuration elastomeric element 33,2 pieces 31,32 are each other via each adhesive layer of composition Bonding agent directly engages.

2 side of absorbent main body on the extending direction of lateral plate 3 is arranged in adhesive layer 35, by the suction of each elastomeric element 33 The end of the property received 2 side of main body or its neighbouring fixation.The front end side 3a on the extending direction of lateral plate 3 is arranged in adhesive layer 36, It will be fixed near the end of the front end side 3a of the lateral plate 3 of each elastomeric element 33 or its.As shown in figure 3, adhesive layer 37 exists It is provided in region, that is, intermediate region 30 between adhesive layer 35 on the extending direction of lateral plate 3 and adhesive layer 36 multiple. The width of adhesive layer 37 is less than any one of described two adhesive layer 35,36, and is formed to interruption in intermediate region 30 Have multiple, but can also be continuously formed in the width direction (X-direction) of diaper.Adhesive layer 37 can also be glued with described two Any one of oxidant layer 35,36 or both is connect to be continuously formed.In the diaper 1 of present embodiment, the extending direction of lateral plate 3 with Diaper width direction is consistent.

As shown in figure 3, adhesive layer 35,36,37 with multiple (more preferably 3 or more) bullets for extending in the X direction Property component 33 intersect and also extend in diaper length direction (Y-direction).These adhesive layers 35,36,37 are preferably and in the side X The all elastic component 33 upwardly extended intersects and extends in diaper length direction (Y-direction), more preferably throughout the upper of lateral plate 3 Endlong setting between lower edge 3u, 3d.

About lateral plate 3, as shown in figure 4, constituting the outer surface side (figure for being located at lateral plate 3 in 2 pieces 31,32 of lateral plate 3 Be the side Q in 4) piece 32 turn back in both ends 3a, 3b of lateral plate 3 to the inner surface side (being the side Q in Fig. 4) of the piece 32, this is turned back Part the inner surface of the piece 32 is respectively engaged in via reinforcement adhesive layer 63,64.

On the other hand, the inner surface side (being the side P in Fig. 4) for being located at lateral plate 3 in 2 pieces 31,32 of lateral plate 3 is constituted Piece 31 was not both turned back to the outer surface side of the piece 31, was also turned back without inner surface side.

In this way, constitute 2 pieces 31,32 of lateral plate 3 both can to the piece 31,32 outer surface side (in Fig. 4 be the side Q) or Inner surface side (being the side P in Fig. 4) is turned back, and can not also be turned back to the outer surface side or inner surface side of the piece 31,32.

As shown in figure 4, both ends 3a, the 3b of the lateral plate 3 of present embodiment in the width direction of the piece 32 of outer surface side It is respectively formed with reinforcement adhesive layer 63,64.As shown in figure 4, two of the width direction in 2 pieces 31,32 for constituting lateral plate 3 The reinforcement that end 3a, 3b are formed both may be formed at the outer surface side (being the side Q in Fig. 4) positioned at lateral plate 3 with adhesive layer 63,64 The part that the inner surface side of piece 32 is turned back also may be formed at the piece 32 of the outer surface side (being the side Q in Fig. 4) positioned at lateral plate 3 The part that exterior surface side is turned back.In any case, by forming reinforcement adhesive layer, the engagement for improving lateral plate 3 is strong Degree.As shown in figure 4, reinforcement with adhesive layer 63,64 both can respectively with the adhesive layer 35,36 that will be engaged between 2 pieces 31,32 It is connected, can not also be connected with them.

In addition, constituting 2 pieces 31,32 of lateral plate 3 can also not have return portion in both ends 3a, 3b of width direction Point.

Lateral plate 3 is bonded on outer layer composite sheet 22 and configuration in the inner surface side of lateral plate 3 via connecting adhesive oxidant layer 62 Skin lateral plate 20.Connecting adhesive oxidant layer 62 in the X direction, in the position of the interior lateral margin 3c than lateral plate 3 in the outer part, by lateral plate 3 It is engaged with outer layer composite sheet 22, and the position in the interior lateral margin 3c than lateral plate 3 in the inner part, by outer layer composite sheet 22 and skin lateral plate 20 engagements.More specifically, as shown in figure 5, the configuration of connecting adhesive oxidant layer 62 is in the outside of interior lateral margin 3c of lateral plate 3 and interior Side will engage on the outside of this between medial end 3b of lateral plate 3 and leakage prevention sheet 22a, and by leakage prevention sheet 22a and stand on the inside of this The formation of body encirclement is engaged between piece 24 or positive dough sheet 21.

In the present embodiment, as shown in figure 4, connecting adhesive oxidant layer 62 with by the piece 31 of the inner surface side of lateral plate 3 with Three-dimensional shield forms 66 interval of adhesive layer engaged with piece 24, but can also be connected with the adhesive layer 66.In addition, as schemed Shown in 4, between connecting adhesive oxidant layer 62 is separated with the adhesive layer 67 for engaging positive dough sheet 21 with three-dimensional shield formation piece 24 Every, but can also be connected with the adhesive layer 67.

As shown in figure 5, outer layer adhesive layer 61 will constitute the leakage prevention sheet 22a and outer layer non-woven fabrics 22b of outer layer composite sheet 22 Engagement, in turn, the position Chong Die with the interior lateral margin 3c of lateral plate 3 is with not placement of adhesives on the thickness direction Z of diaper 1 Discontinuities 7.

In discontinuities 7, leakage prevention sheet 22a is not engaged with outer layer non-woven fabrics 22b, and leakage prevention sheet 22a becomes prone to as a result, It is extended in width direction (X-direction).As a result, when the outside side stretching of lateral plate 3 is worn diaper 1, it is able to suppress deformation part Ground concentrates on leakage prevention sheet 22a, so that leakage prevention sheet 22a is not easy to split in the direction of the width.

On the other hand, if the outer surface of leakage prevention sheet 22a via outer layer adhesive layer 61 and outer layer non-woven fabrics 22b in width side It continuously engages upwards, in addition, the inner surface of leakage prevention sheet 22a exists via connecting adhesive oxidant layer 62 and lateral plate 3 and positive dough sheet 21 It is continuously engaged in width direction, then leakage prevention sheet 22a is difficult to stretch to the inner side and outer side of width direction (X-direction) any one It is long.Therefore, if by the outside side stretching of lateral plate 3, leakage prevention sheet 22a can be applied outward via connecting adhesive oxidant layer 62 and is opened Power, so that deforming can be locally concentrated near the interior lateral margin 3c of lateral plate 3.As a result, the thickness direction Z of diaper with it is described interior The part of lateral margin 3c overlapping, the case where splitting there are leakage prevention sheet 22a.

Discontinuities 7 configure position Chong Die with the interior lateral margin 3c of lateral plate 3 on thickness direction Z.Use interior lateral margin line 3cL (referring to Fig. 5) indicates the position Chong Die with interior lateral margin 3c.

For further suppressing the viewpoint for the case where leakage prevention sheet 22a splits in the direction of the width, width direction (X-direction) On the length W1 (referring to Fig. 5) of discontinuities 7 be preferably 1mm or more, more preferably 1.5mm or more, furthermore it is preferred that for 5mm with Under, more preferably 3mm hereinafter, preferably 1mm or more and 5mm hereinafter, more preferably 1.5mm or more and 3mm or less.

In addition, discontinuities 7 as boundary are divided into inboard portion 7a and exterior portion 7b using the interior lateral margin line 3cL of lateral plate 3 When, the length W1a (referring to Fig. 5) of the inboard portion 7a in width direction (X-direction) is preferably 0.5mm or more, more preferably 1mm More than, furthermore it is preferred that be 5mm hereinafter, more preferably 3mm hereinafter, preferably 0.5mm or more and 5mm hereinafter, more preferably 1mm Above and 3mm or less.In turn, the length W1b (referring to Fig. 5) of the exterior portion 7b in width direction (X-direction) is preferably 0.5mm More than, more preferably 1mm or more, furthermore it is preferred that being 5mm hereinafter, more preferably 3mm is hereinafter, preferably 0.5mm or more and 5mm Hereinafter, more preferably 1mm or more and 3mm or less.

In addition, in the present specification, the size etc. of each sections such as discontinuities 7 is stretched in elastomeric elements such as making elastomeric element 33 It grows and extends to lateral plate or diaper as design size (with expansion planar in the state of excluding the influence of elastomeric element completely Size when exhibition is identical) until in the state of measure.

As shown in figure 5, outer layer adhesive layer 61 on the thickness direction Z of diaper 1 with lateral plate 3 comprising including interior lateral margin 3c Its region R overlapped around in, have configured with bonding agent part 71 discontinuously configured in width direction (X-direction) and At striped coated portion 70.Between the part 71 configured with bonding agent, the part 72 configured with not placement of adhesives, the portion One divided in 72 constitutes the discontinuities 7.According to this structure, can further suppress by lateral plate 3 to the outer of width direction The region near the interior lateral margin 3c is locally concentrated on to the strain of leakage prevention sheet 22a when side stretching.In this way, outer layer adhesive layer 61 preferably on the thickness direction Z of diaper 1 and in the interior lateral margin 3c of lateral plate 3 and its region R overlapped around, has striped coating Portion 70.In addition, being preferably placed at the portion of the not placement of adhesives between the part 71 configured with bonding agent in striped coated portion 70 Divide a composition discontinuities 7 in 72.As long as the part 72 of not placement of adhesives of the striped coated portion 70 comprising discontinuities 7 is 2 or more.

As long as striped coated portion 70 configuration outer layer adhesive layer 61 on thickness direction Z with the interior lateral margin 3c of lateral plate 3 The region R overlapped around with it can also spread the width direction overall situation of outer layer adhesive layer 61 and configure.With lateral plate 3 Interior lateral margin 3c and its region R overlapped around is that the two sides away from the interior lateral margin 3c in width direction (X-direction) are respectively Region within 10mm.

The portion configured with bonding agent for more reliably playing the viewpoint of the effect, in width direction (X-direction) Dividing 71 length W2 (referring to Fig. 5) is preferably 0.5mm or more, more preferably 1mm or more, furthermore it is preferred that being 3mm hereinafter, more excellent 2mm is selected as hereinafter, preferably 0.5mm or more and 3mm are hereinafter, more preferably 1mm or more and 2mm or less.

In addition, the length W2 (referring to Fig. 5) of the part 71 configured with bonding agent in width direction (X-direction) is not relative to having There is a length W3 (referring to Fig. 5) of the part 72 of placement of adhesives, preferably 20% or more, more preferably 30% or more, in addition, excellent Be selected as 100% hereinafter, more preferably 80% hereinafter, preferably 20% or more and 100% hereinafter, more preferably 30% or more and 80% or less.

In addition, the length W3 (referring to Fig. 5) of the part 72 of the not placement of adhesives in width direction (X-direction) is preferably 1mm or more, more preferably 1.5mm or more, furthermore it is preferred that be 5mm hereinafter, more preferably 3mm hereinafter, preferably 1mm or more and 5mm is hereinafter, more preferably 1.5mm or more and 3mm or less.

In the position of the interior lateral margin 3c than lateral plate 3 in the outer part, outer layer composite sheet 22 be preferably leakage prevention sheet 22a and outer layer without The shear strength of width direction between woven fabric 22b is greater than the tensile strength of the leakage prevention sheet 22a in width direction.According to the knot Structure, relative to by outer side stretching from lateral plate 3 to width direction when be applied to outer layer adhesive layer 61 shear direction load, energy Enough bond strengths for more reliably ensuring lateral plate 3 Yu absorbent main body 2.It is anti-whether the shear strength of the outer layer composite sheet 22 is greater than The tensile strength of dropping fraction 22a, removing compared to leakage prevention sheet 22a and outer layer non-woven fabrics 22b when can be by stretching lateral plate 3, Leakage prevention sheet 22a is first split in width direction (X-direction) to judge.The shear strength of the outer layer composite sheet 22 is confirmed in more detail It is as follows with the method for the size relation of the tensile strength of leakage prevention sheet 22a.By the interior lateral margin 3c shown in fig. 5 comprising lateral plate 3 Short side long side is set as width direction (X-direction) and is set as the rectangular of length direction (Y-direction) by the part of neighbouring part The mode of the sample chips of shape is cut out from diaper 1.By the leakage prevention sheet 22a of the sample chips and outer layer non-woven fabrics 22b in being equivalent to The position of lateral margin line 3cL is cut along its length (Y-direction).Thereafter, the lateral plate 3 and absorbent main body 2 of the sample chips are clamped Than the position that interior lateral margin line 3cL leans on the length direction Central Line side CL, the direction of (X-direction) is stretched until sample chips in the width direction Until fracture.At this point, leakage prevention sheet 22a is first in width direction (X if removing compared to leakage prevention sheet 22a and outer layer non-woven fabrics 22b Direction) on split, then can be judged as outer layer composite sheet 22 shear strength be greater than leakage prevention sheet 22a tensile strength.

The shear strength of outer layer composite sheet 22 can pass through the methods of following improve: via bonding agent 61 by leakage prevention sheet 22a with outer layer non-woven fabrics 22b then when press securely, or pressed while heating.

In addition, the tensile strength of the leakage prevention sheet 22a in width direction (X-direction) is preferably 100cN/25mm or more, it is more excellent It is selected as 150cN/25mm or more, furthermore it is preferred that being 400cN/25mm hereinafter, more preferably 300cN/25mm is hereinafter, preferably 100cN/25mm or more and 400cN/25mm are hereinafter, more preferably 150cN/25mm or more and 300cN/25mm or less.The stretching Intensity measures in a manner described below.Firstly, will from diaper 1 using the solvent or cold spray for dissolving bonding agent Outer layer non-woven fabrics 22b and leakage prevention sheet 22a separation.It is 25mm that leakage prevention sheet 22a after the separation, which is cut to length direction (Y-direction), The sample chips for the short strip shape that wide, width direction (X-direction) is about 100mm wide.To the sample chips, cupping machine is used (" Tensilon " RTC-1150A of Orientec limited liability company), measurement by sample chips to the diaper width direction (side X To) the corresponding maximum point load towards when stretching, and the maximum point measured load is set as the tensile strength of leakage prevention sheet 22a. At this point, grip separation is set as 50mm, tensile speed is set as 300mm/min.

In addition, the tensile strength on outer layer non-woven fabrics 22b preferable width direction (X-direction) is greater than leakage prevention sheet 22a.According to this Structure, even if applying to outer layer non-woven fabrics 22b load in the direction of the width due to the outer side stretching by lateral plate 3 to width direction, Also outer layer non-woven fabrics 22b can be further suppressed to split in the direction of the width.

For more reliably playing the viewpoint of the effect, the drawing of the outer layer non-woven fabrics 22b in width direction (X-direction) Stretching intensity is preferably 300cN/25mm or more, more preferably 400cN/25mm or more, furthermore it is preferred that be 1000cN/25mm hereinafter, More preferably 800cN/25mm hereinafter, preferably 300cN/25mm or more and 1000cN/25mm hereinafter, more preferably 400cN/ 25mm or more and 800cN/25mm or less.The tensile strength of outer layer non-woven fabrics 22b can be strong with the stretching with the leakage prevention sheet 22a Identical method is spent to measure.

About leakage prevention sheet 22a, as shown in figure 5, in width direction (X-direction), the lateral border of leakage prevention sheet 22a 22a1 In position of the interior lateral margin 3c than lateral plate 3 in the outer part and than the lateral border 22b1 of outer layer non-woven fabrics 22b in the inner part.In other words, prevent The lateral border 22a1 of dropping fraction 22a is in width direction (X-direction), positioned at lateral border 22b1 and the lateral plate 3 of outer layer non-woven fabrics 22b Between interior lateral margin 3c.The part that the lateral border 22a1 of slave leakage prevention sheet 22a in outer layer non-woven fabrics 22b extends also referred to as is prolonged Extending portion divides 22b2.Also, in lateral plate 3, in width direction (X-direction), the medial end 3b of the lateral plate 3 is via connecting adhesive Oxidant layer 62 is engaged with the extension 22b2 of outer layer non-woven fabrics 22b.In this way, in connecting adhesive oxidant layer 62, it will be in lateral plate 3 The part that side end 3b is engaged with the extension 22b2 of outer layer non-woven fabrics 22b also referred to as extends adhesive portion 62a.According to the knot Structure, due to the part that setting lateral plate 3 is directly engaged with outer layer non-woven fabrics 22b, in the outer layback by lateral plate 3 to width direction When stretching, the load for being applied to the shear direction of bonding part of leakage prevention sheet 22a and outer layer non-woven fabrics 22b can be further decreased. So, it is preferred that in the direction of the width, in leakage prevention sheet 22a its lateral border 22a1 be located at than lateral plate 3 interior lateral margin 3c in the outer part And the position than the lateral border 22b1 of outer layer non-woven fabrics 22b in the inner part, in lateral plate 3, in the direction of the width, the inside of the lateral plate 3 The extension that end 3b extends via the lateral border of the slave leakage prevention sheet 22a in connecting adhesive oxidant layer 62 and outer layer non-woven fabrics 22b Part 22b2 engagement.

For more reliably playing the viewpoint of the effect, outer layer non-woven fabrics 22b's in width direction (X-direction) prolongs Extending portion divides the length W5 (referring to Fig. 5) of 22b2 to be preferably 5mm or more, more preferably 10mm or more, furthermore it is preferred that for 30mm with Under, more preferably 20mm hereinafter, preferably 5mm or more and 30mm hereinafter, more preferably 10mm or more and 20mm or less.

In addition, the length W6 (referring to Fig. 5) of the extension adhesive portion 62a in connecting adhesive oxidant layer 62 is relative to outer layer nonwoven The length W5 of the extension 22b2 of cloth 22b, preferably 30% or more, more preferably 60% or more, furthermore it is preferred that being 100% Hereinafter, more preferably 90% hereinafter, preferably 30% or more and 100% hereinafter, more preferably 60% or more and 90% or less.

In addition, the length W6 (referring to Fig. 5) of the extension adhesive portion 62a in connecting adhesive oxidant layer 62 is preferably 3mm or more, More preferably 5mm or more, furthermore it is preferred that be 20mm hereinafter, more preferably 10mm hereinafter, preferably 3mm or more and 20mm hereinafter, More preferably 5mm or more and 10mm or less.

As shown in figure 5, connecting adhesive oxidant layer 62 is near the interior lateral margin 3c of lateral plate 3 with not placement of adhesives Discontinuities 75.According to this structure, strain can be further suppressed and locally concentrate on leakage prevention sheet 22a.In this way, connecting adhesive Layer 62 is not preferably as shown in figure 5, position Chong Die with the interior lateral margin 3c of lateral plate 3 on the thickness direction Z of diaper 1 is with configuring The discontinuities 75 of bonding agent.

Connecting adhesive oxidant layer 62 for more reliably playing the viewpoint of the effect, in width direction (X-direction) The length W4 (referring to Fig. 5) of discontinuities 75 be preferably 1mm or more, more preferably 1.5mm or more, furthermore it is preferred that for 5mm with Under, more preferably 3mm hereinafter, preferably 1mm or more and 5mm hereinafter, more preferably 1.5mm or more and 3mm or less.

In addition, the discontinuities 75 of connecting adhesive oxidant layer 62 as boundary are divided into inside portion using the interior lateral margin 3c of lateral plate 3 When dividing 75a and exterior portion 75b, the length W4a (referring to Fig. 5) of the inboard portion 75a in width direction (X-direction) is preferably 0.5mm or more, more preferably 1mm or more, furthermore it is preferred that being 5mm hereinafter, more preferably 3mm is hereinafter, preferably 0.5mm or more And 5mm is hereinafter, more preferably 1mm or more and 3mm or less.In turn, the length of the exterior portion 75b in width direction (X-direction) W4b (referring to Fig. 5) is preferably 0.5mm or more, more preferably 1mm or more, furthermore it is preferred that be 5mm hereinafter, more preferably 3mm with Under, preferably 0.5mm or more and 5mm are hereinafter, more preferably 1mm or more and 3mm or less.

In addition, in the present embodiment, about the discontinuities 75 of connecting adhesive oxidant layer 62, width direction (X-direction) On length W4 it is identical as the length W1 in the width direction (X-direction) of the discontinuities 7 of outer layer adhesive layer 61, but two discontinuities 7, length W1, W4 in 75 width direction can also be respectively different.

When diaper 1 is dressed in wearer, being stretched magic tape 4 and glue lateral plate 3 in the state of elongation by this with pulling The Fixed Division 41 of cingulum 4 presses on button region 5 and fixes.

The connecting adhesive oxidant layer 62, outer layer adhesive layer 61 and each adhesive layer 35,36,37,63,64,65 can By the following method formed: using various well known methods by adhesive applicating in 2 pieces for clipping each adhesive layer After either or both, which is merged into pressurization.

In addition, forming the application pattern of the bonding agent of each adhesive layer, it is preferable to use spray gun, coating rifles etc. as bonding agent Coating machine and carry out so-called full coat apply, but be also able to use pearl rifle, spiral spray gun, Ω shape spray gun, transfer roll etc. as bonding Agent coating machine and carry out the patterns coating such as linear, helical form, Ω shape, dotted.

In lateral plate 3, as the piece 31,32 for constituting the lateral plate 3, can be used without special restrictions all the time for primary The various sheet materials of the absorbent commodities such as property diaper, menstrual hygiene cotton.Just prevent by outer side stretching from lateral plate 3 to width direction when For the viewpoint for generating strain near the interior lateral margin 3c of lateral plate 3, lateral plate 3 is preferably with 2 non-elongate pieces and with elongation The retractility lateral plate of elastomeric element 33 of the state configuration between 2 non-elongate pieces.Herein, so-called non-telescoping property piece refers to benefit With the elongation recovery rate (%) that the measurement method of recovery rate " elongation " is measured be 20% below or elongation 100% it The piece of preceding rupture.

The elongation recovery rate of telescopic sheet is measured by measurement method below.

(measurement method of elongation recovery rate)

Prepare the sample chips of the telescopic sheet of length 50mm, width 25mm, (Orientec share has using cupping machine " Tensilon " RTC-1150A of limit company), with grip separation K0 fixed sample piece, and stretch it with the speed of 300mm/min The long length K2 (K2=K0 × 2) to when elongation 100%, starts to restore, by stress with speed identical with tensile speed later The length of sample chips when becoming 0 is set as the length K1 after elongation restores.Elongation when calculating elongation 100% according to the following formula restores Rate.

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

Non-telescoping property piece can both have extensibility, can also not have extensibility, but preferably at most elongation is 90% or less. Extensibility mentioned herein can be any one of following situation: constitute the case where fiber itself extends；Although with constituting Fiber itself does not extend, but due to being separated from each other in two fibers of the mutual intersection point thermal welding of fiber or because of the mutual heat of fiber Welding etc. and the D structure formed by plurality of fibers constructively changes or constitutes fiber and is pulled off, and as fiber The case where layer overall elongated.

As non-telescoping property piece, the preferably laminates of non-woven fabrics, non-woven fabrics and resin film, porous membrane etc..About non- Telescopic sheet is preferably formed by the non-woven fabrics comprising thermoplastic fibre for making the good viewpoint of gas permeability, texture, in addition, For the viewpoint for preventing excreta from leaking, preferably formed by the non-woven fabrics of water-repellancy.

About configuration in the linear elastomeric element 33 of retractility lateral plate 3, the flexibility or true of retractility lateral plate 3 is just improved It protects for the viewpoint of retractility, width (size of Y-direction) or diameter are preferably 0.1mm or more and 2mm hereinafter, more preferably 0.1mm or more and 1mm or less.In addition, configuration is preferably set to 1 in the number of the linear elastomeric element 33 of retractility lateral plate 3 Above and 25 or less degree, more preferably 3 or more and 20 or less.In addition, elongation can be known from the prior art Elongation in suitably select, stress when extending to elongation 100% is 1 elasticity of 0.1N or more and 1N threadiness below Component 33 is preferably arranged and is fixed with the state extended in 50% or more elongation and 300% or less range, and then preferably It is arranged and fixes with the state extended in the range of 100% or more and 250% or less.In addition, elongation is to extend and increase Amount ratio of the length relative to natural length, for example, if the elastomeric element of length 10cm is extended to 20cm, elongation Rate is 100%.

Multiple elastomeric elements 33 of elongation state extend multiple viscous in the Y direction via intersecting with each elastomeric element 33 It connects agent (not illustrating) to be fixed between inner surface lateral plate 31 and outer surface lateral plate 32, and is being not provided with elastomeric element 33 Position, inner surface lateral plate 31 and outer surface lateral plate 32 are directly engaged via each bonding agent (not illustrating) each other.It is multiple Bonding agent (not illustrating) preferably intersects with the elastomeric element 33 of all threadiness extended in the X direction and prolongs in the Y direction It stretches, and then the overall length of the Y-direction preferably over retractility lateral plate 3.Bonding agent (not illustrating) is arranged roughly equal in the X direction Interval and configured with multiple.Retractility lateral plate 3, which passes through, is applied multiple bonding agents (not illustrating) with various well known methods The coincidence of these pieces 31,32 is gone forward side by side in any one of inner surface side piece 31 and outer surface lateral plate 32 or both, and after coating Row pressurization, thus the elastomeric element 33 of multiple elongation states is fixed and formed.As shown in figure 3, what is formed by this method is flexible Property lateral plate 3 in elastomeric element 33 there is the fixed end the fixed end 33I in the inside (lean on absorbent main body 2) of X-direction and outside 33O, in inside, the fixing end portion 33I and fixed end 33O in outside, has not had convergent force, has become the state that can not be stretched.Outside The length of the X-direction of fixed end 33O retractility lateral plate 3 shown in Fig. 3 under natural conditions, preferably linear elastic portion 10% or more and 40% range below of the overall length of the X-direction of part 33, and then preferably 15% or more and 35% model below It encloses.The length of the X-direction of the fixed end 33I in inside is also identical as the fixed length of X-direction of end 33O in outside.In addition, flexible Property lateral plate 3 other than being fixed using bonding agent (not illustrating), can also combine implement it is solid using the welding of heat sealing etc. It is fixed.

About each component parts of diaper 1, its constituent material is illustrated.

As the band substrate 42 of magic tape 4, can be used without special restrictions in the prior art for disposable diaper, warp The various sheet materials of the absorbent commodities such as phase sanitary napkin.

For example, being able to use non-woven fabrics, fabric, film or their laminates etc. as piece 31,32, band substrate 42.

It, can be respectively without special limit as positive dough sheet 21, the outer layer composite sheet 22, absorber 23 for constituting absorbent main body 2 System ground uses in the prior art for materials of absorbent commodities such as disposable diaper, menstrual hygiene towel etc..For example, as front Piece 21 is able to use non-woven fabrics or solid apertured film of hydrophily and liquid permeability etc..As outer layer composite sheet 22, can make It include resin film, the outer layer non-woven fabrics 22b packet of liquid impermeability or liquid difficulty permeability (comprising water-repellancy) with leakage prevention sheet 22a It includes using non-woven fabrics made of various preparation methods (for example, hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spunlace non-woven cloth, needle punched non-woven fabrics Deng) structure.Outer layer non-woven fabrics 22b can also be multi-ply construction.In addition, being able to use as absorber 23 using comprising permeable Property thin paper or non-woven fabrics clad sheet by the aggregation (can also be non-woven fabrics) of the fibers such as paper pulp fiber or make its keep absorb water Property polymer particle made of structure etc. obtained by absorbent core cladding.It is formed as the three-dimensional shield for constituting three-dimensional shield With piece 24, it is able to use film, non-woven fabrics, fabric or their laminates etc..

As elastomeric element 33, the elastomeric element 25 for constituting three-dimensional shield, leg elastic members 26, it is able to use comprising day Right rubber, Polyurethane, polystyrene-polyisoprene copolymer, polystyrene-polybutadiene copolymer, ethyl acrylate-second The threadiness of the polyethylene-alphaolefins copolymer such as alkene etc. or the elastomeric element of rope form.About the multiple elastic portions configured in 1 lateral plate Part 33, for the viewpoints such as the simplification of manufacturing cost or manufacturing step, preferably by same kind of elastomeric element with same elongation Rate configuration.

As the excellent of the bonding agent with the bonding agent 34 of secure resilient member 33 for representative for that will be engaged between each component The material of choosing can be enumerated: amorphous polyolefins, vinyl-vinyl acetate copolymer (EVA), vinyl-acrylate copolymer (EEA), Styrene-Butadiene-Styrene Block Copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene-ethylene/butylene-styrene block copolymer (SEBS), styrene-ethylene/propylene-styrene block copolymerization The mixture etc. of the thermoplastic polymers such as object (SEPS) and they.Bonding agent is preferably heat molten type.

The scope of the present invention is not limited by the embodiment.In addition, the present invention discloses disposable diaper below in turn.

1 > of <

A kind of disposable diaper comprising: it is compound in the outer layer of the outer surface side of the absorber with absorber and configuration The absorbent main body of piece；With the lateral plate for one or two side for being mounted on the absorbent main body, in the disposable diaper,

The elastomeric element that the lateral plate has 2 pieces and is fixed between 2 pieces, is provided with magic tape in front end,

The outer layer composite sheet has the leakage prevention sheet of liquid impermeability or liquid difficulty permeability and via outer layer bonding agent Layer is engaged in the outer layer non-woven fabrics of the outer surface side of the leakage prevention sheet,

The lateral plate via connecting adhesive oxidant layer is engaged in the outer layer composite sheet and positioned at the inner surface of the lateral plate The skin lateral plate of side,

In the width direction of the disposable diaper, the connecting adhesive oxidant layer is leaned in the interior lateral margin than the lateral plate The position in outside, by the lateral plate and the compound chip bonding of the outer layer, and the position in the interior lateral margin than the lateral plate in the inner part, The outer layer composite sheet is engaged with the skin lateral plate,

The outer layer adhesive layer is Chong Die with the interior lateral margin of the lateral plate on the thickness direction of the disposable diaper Position has the discontinuities of not placement of adhesives.

2 > of <

The disposable diaper recorded such as 1 > of <, wherein the length W1 of the discontinuities in the width direction is 1mm or more, preferably 1.5mm or more, and be 5mm hereinafter, preferably 3mm or less.

3 > of <

The disposable diaper recorded such as 1 > of < or 2 > of <, wherein by the discontinuities in the lateral plate When lateral margin line is divided into inboard portion and exterior portion for boundary, the length W1a of the inboard portion in the width direction is 0.5mm or more, preferably 1mm or more, and be 5mm hereinafter, preferably 3mm or less.

4 > of <

The disposable diaper recorded such as any one of described 3 > of < 1 > to <, wherein by the discontinuities with described When the interior lateral margin line of lateral plate is divided into inboard portion and exterior portion for boundary, the length of the exterior portion in the width direction W1b is 0.5mm or more, preferably 1mm or more, and is 5mm hereinafter, preferably 3mm or less.

5 > of <

The disposable diaper recorded such as any one of described 4 > of < 1 > to <, wherein the outer layer adhesive layer is in institute State on thickness direction in the interior lateral margin of the lateral plate and its region overlapped around have striped coated portion, the striped coated portion The part of part and not placement of adhesives configured with bonding agent is configured repeatedly in the width direction, is matched positioned at described One be equipped in the part of the not placement of adhesives between the part of bonding agent constitutes the discontinuities.

6 > of <

The disposable diaper recorded such as any one of described 5 > of < 1 > to <, wherein described in the width direction The length W2 of part configured with bonding agent is 0.5mm or more, preferably 1mm or more, in addition, being 3mm hereinafter, preferably 2mm Below.

7 > of <

The disposable diaper recorded such as any one of described 6 > of < 1 > to <, wherein described in the width direction Length W3 of the length W2 of part configured with bonding agent relative to the part of the not placement of adhesives is 20% or more, Preferably 30% or more, in addition, for 100% hereinafter, preferably 80% or less.

8 > of <

The disposable diaper recorded such as any one of described 7 > of < 1 > to <, wherein described in the width direction Not having the length W3 of the part of placement of adhesives is 1mm or more, preferably 1.5mm or more, in addition, being 5mm hereinafter, preferably 3mm or less.

9 > of <

The disposable diaper recorded such as any one of described 8 > of < 1 > to <, wherein in the interior lateral margin than the lateral plate The shearing of position in the outer part, the width direction between leakage prevention sheet described in outer layer composite sheet and the outer layer non-woven fabrics is strong Degree is greater than the tensile strength of the leakage prevention sheet in the width direction.

10 > of <

The disposable diaper recorded such as any one of described 9 > of < 1 > to <, wherein the outer layer non-woven fabrics it is described Tensile strength in width direction is greater than the leakage prevention sheet.

11 > of <

The disposable diaper recorded such as any one of described 10 > of < 1 > to <, wherein described in the width direction The tensile strength of leakage prevention sheet be 100cN/25mm or more, preferably 150cN/25mm or more, in addition, be 400cN/25mm hereinafter, Preferably 300cN/25mm or less.

12 > of <

The disposable diaper recorded such as any one of described 11 > of < 1 > to <, wherein described in the width direction The tensile strength of outer layer non-woven fabrics is 300cN/25mm or more, preferably 400cN/25mm or more, in addition, being 1000cN/25mm Hereinafter, preferably 800cN/25mm or less.

13 > of <

The disposable diaper recorded such as any one of described 12 > of < 1 > to <, wherein in the width direction, institute The lateral border for stating leakage prevention sheet is located at than the interior lateral margin of lateral plate position in the outer part and is located at outer than the outer layer non-woven fabrics The position of lateral margin in the inner part,

About the lateral plate, in the width direction, the medial end of the lateral plate is via the connecting adhesive oxidant layer With being engaged from the extension that the lateral border of the leakage prevention sheet extends in the outer layer non-woven fabrics.

14 > of <

The disposable diaper recorded such as 13 > of <, wherein the outer layer non-woven fabrics in the width direction prolongs The length W5 of extending portion point is 5mm or more, preferably 10mm or more, in addition, being 30mm hereinafter, preferably 20mm or less.

15 > of <

The disposable diaper recorded such as 13 > of < or 14 > of <, wherein the connecting adhesive oxidant layer has institute The extension adhesive portion that the medial end of lateral plate is engaged with the extension of the outer layer non-woven fabrics is stated,

Institute of the length W6 of the extension adhesive portion in the connecting adhesive oxidant layer relative to the outer layer non-woven fabrics The length W5 of extension is stated, is 30% or more, preferably 60% or more, in addition, for 100% hereinafter, preferably 90% or less.

16 > of <

The disposable diaper recorded such as any one of described 15 > of < 13 > to <, wherein the connecting adhesive oxidant layer With the extension adhesive portion for engaging the medial end of the lateral plate with the extension of the outer layer non-woven fabrics,

The length W6 of the extension adhesive portion in the connecting adhesive oxidant layer be 3mm or more, preferably 5mm or more, In addition, being 20mm hereinafter, preferably 10mm or less.

17 > of <

The disposable diaper recorded such as any one of described 5 > of < 1 > to <, wherein the connecting adhesive oxidant layer exists The position Chong Die with the interior lateral margin of the lateral plate has the discontinuities of not placement of adhesives on the thickness direction.

18 > of <

The disposable diaper recorded such as 17 > of <, wherein the connecting adhesive oxidant layer in the width direction The discontinuities length W4 be 1mm or more, preferably 1.5mm or more, in addition, for 5mm hereinafter, preferably 3mm or less.

19 > of <

The disposable diaper recorded such as 17 > of < or 18 > of <, wherein by the institute of the connecting adhesive oxidant layer It states discontinuities and inboard portion as boundary is divided into using the interior lateral margin of the lateral plate and when exterior portion, in the width direction The length W4a of the inboard portion is 0.5mm or more, preferably 1mm or more, in addition, being 5mm hereinafter, preferably 3mm or less.

20 > of <

The disposable diaper recorded such as any one of described 19 > of < 17 > to <, wherein by the connecting adhesive When the discontinuities of oxidant layer as boundary are divided into inboard portion and exterior portion using the interior lateral margin of the lateral plate, the outside Partial length W4b is 0.5mm or more, preferably 1mm or more, in addition, being 5mm hereinafter, preferably 3mm or less.

21 > of <

The disposable diaper recorded such as any one of described 20 > of < 17 > to <, wherein the connecting adhesive oxidant layer The discontinuities width direction on length W4 and the outer layer adhesive layer the discontinuities width direction on Length W1 is identical.

22 > of <

The disposable diaper recorded such as any one of described 21 > of < 1 > to <, wherein the lateral plate is non-with 2 The retractility lateral plate of extensibility piece and the elastomeric element with elongation state configuration between 2 non-elongate pieces.

23 > of <

The disposable diaper recorded such as any one of described 22 > of < 1 > to <, wherein

The elastomeric element configured in the lateral plate is threadiness,

The width or diameter of the elastomeric element of the threadiness be 0.1mm or more and 2mm hereinafter, preferably 0.1mm or more and 1mm or less.

24 > of <

The disposable diaper recorded such as any one of described 23 > of < 1 > to <, wherein

The elastomeric element configured in the lateral plate is threadiness,

Configure the lateral plate threadiness elastomeric element number be 1 or more and 25 or less degree, preferably It is 3 or more and 20 or less.

25 > of <

The disposable diaper recorded such as any one of described 24 > of < 1 > to <, wherein be configured at the described of the lateral plate Elastomeric element is configured along the width direction of disposable diaper.

26 > of <

The disposable diaper recorded such as any one of described 25 > of < 1 > to <, wherein

Multiple elastomeric elements are configured in the lateral plate,

Multiple elastomeric elements in the lateral plate are on the length direction of disposable diaper with roughly equal interval Configuration.

27 > of <

The disposable diaper recorded such as any one of described 26 > of < 1 > to <, wherein about the lateral plate, constituting should It is engaged between 2 pieces of lateral plate via multiple adhesive layers,

Multiple adhesive layers are formed extended at both sides on the length direction of disposable diaper.

28 > of <

The disposable diaper recorded such as 27 > of <, wherein

In multiple adhesive layers, multiple elastomeric elements are via the bonding agent of each adhesive layer of composition with elongation state It is fixed between 2 pieces, and at the position for being not provided with the elastomeric element, 2 pieces are each other via each bonding of composition The bonding agent of oxidant layer directly engages.

29 > of <

The disposable diaper recorded such as 27 > of < or 28 > of <, wherein

Multiple adhesive layers include main body side adhesive layer, and the institute on the extending direction of the lateral plate is arranged in State absorbent main body side；The front end side on the extending direction of the lateral plate is arranged in front end side adhesive layer；It is viscous with centre Oxidant layer is connect, between the main body side adhesive layer and the front end side adhesive layer on the extending direction of the lateral plate Region, that is, intermediate region be provided with it is multiple,

The width of the intermediate adhesive layer is less than the main body side adhesive layer and the front end side adhesive layer The width of any one is formed with multiple intermediate adhesive layers in the intermediate region at intervals.

30 > of <

The disposable diaper recorded such as any one of described 29 > of < 1 > to <, wherein constituting described in the lateral plate Both ends in the width direction of the piece of the outer surface side positioned at the lateral plate in 2 pieces are respectively formed with reinforcement bonding Oxidant layer.

31 > of <

The disposable diaper recorded such as any one of described 30 > of < 1 > to <, wherein constitute described the 2 of the lateral plate The piece of the inner surface side positioned at the lateral plate in a piece was not both turned back to the outer surface side for the piece for being located at the inner surface side, There is no inner surface side to turn back.

32 > of <

The disposable diaper recorded such as any one of described 30 > of < 1 > to <, wherein constitute described the 2 of the lateral plate The piece of the outer surface side positioned at the lateral plate in a piece, at the both ends of the lateral plate to the inner surface of the piece positioned at the outer surface side Side is turned back, which is engaged in the inner surface of the piece via reinforcement with adhesive layer respectively.

33 > of <

The disposable diaper recorded such as any one of described 32 > of < 30 > to <, wherein be formed in and constitute the lateral plate 2 pieces width direction both ends the reinforcement adhesive layer, be formed at the outer surface side of the lateral plate Piece inner surface side turn back after part.

34 > of <

The disposable diaper recorded such as any one of described 33 > of < 30 > to <, wherein adhesive layer is used in the reinforcement It is respectively connected with by the adhesive layer engaged between 2 pieces for constituting the lateral plate.

35 > of <

The disposable diaper recorded such as any one of described 34 > of < 1 > to <, wherein the skin lateral plate includes just Dough sheet；With a pair of of three-dimensional shield formation piece, which is overlapped in the positive dough sheet with piece with part of it The state of both sides on length direction is configured in inner surface side,

The connecting adhesive oxidant layer configuration is in the outside and inside of the interior lateral margin of the lateral plate, by the lateral plate on the outside of this Medial end and the leakage prevention sheet between engage, and on the inside of this by the leakage prevention sheet and the three-dimensional shield formation piece or It is engaged between the positive dough sheet.

The statement of " by being engaged between the leakage prevention sheet and the three-dimensional shield formation piece or the positive dough sheet ", in addition to comprising The leakage prevention sheet is engaged with the three-dimensional shield formation with any one between piece between leakage prevention sheet and the positive dough sheet Other than situation, also comprising will be between the leakage prevention sheet and the three-dimensional shield formation piece and the leakage prevention sheet and the positive dough sheet Between the two engagement the case where.

36 > of <

The disposable diaper recorded such as 35 > of <, wherein the connecting adhesive oxidant layer and the lateral plate will be constituted 2 pieces in the piece of the inner surface side positioned at the lateral plate and between the adhesive layer of three-dimensional shield formation chip bonding separates Every.

[industrial utilizability]

In accordance with the invention it is possible to a kind of disposable diaper is provided, the magic tape etc. in the front end that lateral plate will be arranged in When stretching and wearing diaper, the outer layer composite sheet configured in the outer surface side of absorbent main body is not susceptible to split or damaged.

Claims

1. a kind of disposable diaper comprising: the outer layer composite sheet with absorber and the outer surface side configured in the absorber Absorbent main body；Exist with the feature of the lateral plate for one or two side for being mounted on the absorbent main body, the disposable diaper In:

The outer layer composite sheet has the leakage prevention sheet of liquid impermeability or liquid difficulty permeability and connects via outer layer adhesive layer Together in the outer layer non-woven fabrics of the outer surface side of the leakage prevention sheet,

The lateral plate via connecting adhesive oxidant layer is engaged in the outer layer composite sheet and positioned at the inner surface side of the lateral plate Skin lateral plate,

In the width direction of the disposable diaper, the connecting adhesive oxidant layer the interior lateral margin than the lateral plate in the outer part Position, by the lateral plate and the compound chip bonding of the outer layer, and the position in the interior lateral margin than the lateral plate in the inner part, by institute Outer layer composite sheet is stated to engage with the skin lateral plate,

Outer layer adhesive layer position Chong Die with the interior lateral margin of the lateral plate on the thickness direction of the disposable diaper, Discontinuities with not placement of adhesives.

2. disposable diaper as described in claim 1, it is characterised in that:

The length of the discontinuities in the width direction is 1mm or more and 5mm or less.

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

When the discontinuities as boundary are divided into inboard portion and exterior portion using the interior lateral margin line of the lateral plate, the width The length of the inboard portion on direction is 0.5mm or more and 5mm or less.

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

When the discontinuities as boundary are divided into inboard portion and exterior portion using the interior lateral margin line of the lateral plate, the width The length of the exterior portion on direction is 0.5mm or more and 5mm or less.

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

The outer layer adhesive layer has on the thickness direction with the interior lateral margin of the lateral plate and its region overlapped around There is striped coated portion, which will be configured with the part of bonding agent and the part of not placement of adhesives in the width It is configured repeatedly on direction, one in the part of the not placement of adhesives between the part configured with bonding agent It is a to constitute the discontinuities.

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

The length of the part configured with bonding agent in the width direction is 0.5mm or more and 3mm or less.

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

Portion of the length of the part configured with bonding agent in the width direction relative to the not placement of adhesives The length divided is 20% or more and 100% or less.

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

The length of the part of the not placement of adhesives in the width direction is 1mm or more and 5mm or less.

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

In the position of the interior lateral margin than the lateral plate in the outer part, leakage prevention sheet described in outer layer composite sheet and the outer layer non-woven fabrics it Between the width direction shear strength be greater than the width direction on the leakage prevention sheet tensile strength.

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

Tensile strength in the width direction of the outer layer non-woven fabrics is greater than the leakage prevention sheet.

11. such as disposable diaper according to any one of claims 1 to 10, it is characterised in that:

The tensile strength of the leakage prevention sheet in the width direction is 100cN/25mm or more and 400cN/25mm or less.

12. the disposable diaper as described in any one of claim 1~11, it is characterised in that:

The tensile strength of the outer layer non-woven fabrics in the width direction be 300cN/25mm or more and 1000cN/25mm with Under.

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

In the width direction, the lateral border of the leakage prevention sheet be located at than the lateral plate interior lateral margin position in the outer part and Positioned at the position of the lateral border than the outer layer non-woven fabrics in the inner part,

About the lateral plate, in the width direction, the medial end of the lateral plate is via the connecting adhesive oxidant layer and institute State engaging in outer layer non-woven fabrics from the extension that the lateral border of the leakage prevention sheet extends.

14. disposable diaper as claimed in claim 13, it is characterised in that:

The length of the extension of the outer layer non-woven fabrics in the width direction is 5mm or more and 30mm or less.

15. disposable diaper according to claim 13 or 14, it is characterised in that:

The connecting adhesive oxidant layer has the extension of the medial end of the lateral plate and the outer layer non-woven fabrics The extension adhesive portion of part engagement,

The extension of the length of the extension adhesive portion in the connecting adhesive oxidant layer relative to the outer layer non-woven fabrics Partial length is 30% or more and 100% or less.

16. the disposable diaper as described in any one of claim 13~15, it is characterised in that:

The length of the extension adhesive portion in the connecting adhesive oxidant layer is 3mm or more and 20mm or less.

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

Connecting adhesive oxidant layer position Chong Die with the interior lateral margin of the lateral plate on the thickness direction, which has, does not match Set the discontinuities of bonding agent.

18. disposable diaper as claimed in claim 17, it is characterised in that:

The length of the discontinuities of the connecting adhesive oxidant layer in the width direction is 1mm or more and 5mm or less.

19. the disposable diaper as described in claim 17 or 18, it is characterised in that:

The discontinuities of the connecting adhesive oxidant layer as boundary are being divided into inside portion using the interior lateral margin of the lateral plate When dividing with exterior portion, the length of the inboard portion in the width direction is 0.5mm or more and 5mm or less.

20. the disposable diaper as described in any one of claim 17~19, it is characterised in that:

The discontinuities of the connecting adhesive oxidant layer as boundary are being divided into inside portion using the interior lateral margin of the lateral plate When dividing with exterior portion, the length of the exterior portion in the width direction is 0.5mm or more and 5mm or less.

21. the disposable diaper as described in any one of claim 17~20, it is characterised in that:

Length in the width direction of the discontinuities of the connecting adhesive oxidant layer is described with the outer layer adhesive layer Length in the width direction of discontinuities is identical.

22. the disposable diaper as described in any one of claim 1~21, it is characterised in that:

The lateral plate is to configure the bullet between 2 non-elongate pieces with 2 non-elongate pieces and with elongation state The retractility lateral plate of property component.

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

The elastomeric element for being configured at the lateral plate is threadiness,

The width or diameter of the elastomeric element of the threadiness are 0.1mm or more and 2mm or less.

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

The number for being configured at the elastomeric element of the threadiness of the lateral plate is 1 or more and 25 or less.

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

The elastomeric element for being configured at the lateral plate is configured along the width direction of the disposable diaper.

26. the disposable diaper as described in any one of claim 1~25, it is characterised in that:

Multiple elastomeric elements are configured in the lateral plate,

Multiple elastomeric elements in the lateral plate are configured on the length direction of disposable diaper with roughly equal interval.

27. the disposable diaper as described in any one of claim 1~26, it is characterised in that:

About the lateral plate, constitutes and is engaged between 2 pieces of the lateral plate via multiple adhesive layers,

Multiple adhesive layers are formed extended at both sides on the length direction of the disposable diaper.

28. disposable diaper as claimed in claim 27, it is characterised in that:

In multiple adhesive layers, multiple elastomeric elements are via the bonding agent of the multiple adhesive layer each of composition to stretch Long status is fixed between 2 pieces, and at the position for being not provided with the elastomeric element, 2 pieces are each other via composition The bonding agent of multiple adhesive layer each directly engages.

29. the disposable diaper as described in claim 27 or 28, it is characterised in that:

Multiple adhesive layers include main body side adhesive layer, and the suction on the extending direction of the lateral plate is arranged in The property received main body side；The front end side on the extending direction of the lateral plate is arranged in front end side adhesive layer；With intermediate bonding agent Layer, the region between the main body side adhesive layer and the front end side adhesive layer on the extending direction of the lateral plate I.e. intermediate region is provided with multiple,

The width of the intermediate adhesive layer is less than any of the main body side adhesive layer and the front end side adhesive layer The width of person is formed with multiple intermediate adhesive layers in the intermediate region at intervals.

30. the disposable diaper as described in any one of claim 1~29, it is characterised in that:

Two in the width direction of the piece of the outer surface side positioned at the lateral plate in 2 pieces for constituting the lateral plate End is respectively formed with reinforcement adhesive layer.

31. the disposable diaper as described in any one of claims 1 to 30, it is characterised in that:

The piece of the inner surface side positioned at the lateral plate in 2 pieces of the lateral plate is constituted, both not to positioned at the inner surface The outer surface side of the piece of side is turned back, and is also turned back without inner surface side.

32. the disposable diaper as described in any one of claims 1 to 30, it is characterised in that:

The piece for constituting the outer surface side positioned at the lateral plate in 2 pieces of the lateral plate, at the both ends of the lateral plate to position It turns back in the inner surface side of the piece of the outer surface side, which is engaged in the piece with adhesive layer via reinforcement respectively Inner surface.

33. the disposable diaper as described in any one of claim 30~32, it is characterised in that:

It is formed in the reinforcement adhesive layer for constituting the both ends of the width direction of 2 pieces of the lateral plate, is formed Part after the inner surface side for being located at the piece of outer surface side of the lateral plate is turned back.

34. the disposable diaper as described in any one of claim 30~33, it is characterised in that:

The reinforcement is respectively connected with adhesive layer with by the adhesive layer engaged between 2 pieces for constituting the lateral plate.

35. the disposable diaper as described in any one of claims 1 to 34, it is characterised in that:

The skin lateral plate includes positive dough sheet；With a pair of of three-dimensional shield formation piece, a pair of three-dimensional shield formation piece is with it The state that a part is overlapped in the both sides on the length direction of the positive dough sheet is configured in inner surface side,

The connecting adhesive oxidant layer configuration, will be in the lateral plate on the outside of this in the outside and inside of the interior lateral margin of the lateral plate It is engaged between side end and the leakage prevention sheet, and by the leakage prevention sheet and the three-dimensional shield formation piece or described on the inside of this It is engaged between positive dough sheet.

36. disposable diaper as claimed in claim 35, it is characterised in that:

The piece of the connecting adhesive oxidant layer and the inner surface side positioned at the lateral plate in 2 pieces that the lateral plate will be constituted With the adhesive layer interval of three-dimensional shield formation chip bonding.