CN107106364A

CN107106364A - Absorbent commodity

Info

Publication number: CN107106364A
Application number: CN201580069399.1A
Authority: CN
Inventors: 富田美奈; 相良早苗; 南崎亚由香; 铃木岳志
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2014-12-19
Filing date: 2015-12-17
Publication date: 2017-08-29
Anticipated expiration: 2035-12-17
Also published as: JP6083911B2; CN107106364B; JP2016209535A; RU2659945C1

Abstract

A kind of absorbent commodity (1), it includes the positive dough sheet (12) being made up of composite sheet, the absorber (14) of back sheet (13) and configuration between this two panels, composite sheet (10) has the first direction (X) along article length direction and the second direction (Y) along item width direction, and first (1) and second (2) part engagement being laminated forms multiple junction surfaces, the position of first (1) beyond junction surface is prominent to the direction away from second (2), form the convex portion that the skin side towards wearer is protruded, composite sheet (10) has the middle section (M) and a pair of lateral region (S that convex portion is formed with pattern different from each other, S), the area ratio at the junction surface in lateral region (S) is higher than the area ratio at the junction surface in middle section (M), and the height of the maximum convex portion of the height of middle section (M) is identical with the height for the convex portion that the height of lateral region (S) is maximum.

Description

Absorbent commodity

Technical field

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

Background technology

In the prior art, as the positive dough sheet of the absorbent commodities such as disposable diaper, sanitary napkin, incontinence pad, It is known have by be embossed processing etc. be formed with the piece of concaveconvex shape in the face of the skin side of the skin side towards wearer.And And, it is also known that the skill for the leak preventing effect for improving soft stool and urine etc. by forming concaveconvex shape in the face of the skin side of positive dough sheet Art (patent document 1,2).

But, fit when in order to improve wearing and make absorber thinning or in a part of perforate of absorber And in the case of making the rigidity reduction of absorber, the positive dough sheet positioned at crotch bottom easily produces wrinkle pleat, positive dough sheet by concave-convex The leak preventing effect reduction that shape is brought, soft stool or urine are spilt readily along the flowing of wrinkle pleat.

In addition, also known as suppress spilling for the soft stool from crotch bottom or urine, and in the both sides for being configured at absorber Concavo-convex big bumps of the lateral region formation difference of height than centrally disposed region of the positive dough sheet in portion, suppress soft stool or urine direction The technology of the lateral flow of the side flowing of absorbent commodity (with reference to patent document 3).

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2004-174234 publications

Patent document 2：Japanese Unexamined Patent Publication 2009-136349 publications

Patent document 3：Japanese Unexamined Patent Publication 2009-148445 publications

The content of the invention

The present invention relates to the absorber including the positive dough sheet being made up of composite sheet, back sheet and configuration between this two panels Absorbent commodity.Above-mentioned composite sheet has the first direction and the second party along item width direction along article length direction To, and be laminated first and second part engage and form multiple junction surfaces, first beyond above-mentioned junction surface Position forms the convex portion that the skin side towards wearer is protruded to prominent away from the direction of second.Above-mentioned composite sheet have with Pattern different from each other is formed with the middle section and a pair of lateral regions positioned at the both sides of the middle section of raised part.On The area ratio for stating the above-mentioned junction surface in each lateral region is higher than the area ratio at the above-mentioned junction surface in above-mentioned middle section. The height of the maximum convex portion of the height of above-mentioned middle section is identical with the height for the convex portion that the height of above-mentioned each lateral region is maximum.

Invention effect

According to the absorbent commodity of the present invention, the middle section of positive dough sheet and the boundary of lateral region easily produce folding Song, absorbent commodity is easily deformed into the shape of ship shape during wearing, results in excellent leak resistance.In addition, by Region and lateral region are entreated, makes the height of the maximum convex portion of height identical and makes what is formed in middle section and lateral region The formation pattern of convex portion is different, realizes its excellent leak resistance, even if thus to compress absorbent commodity is filled in into packaging State keeping in bag, is not easy to the reduction for occurring leak resistance.Wherein, the shape of ship shape refer to absorbent commodity along its The section of length direction bent by inner side of skin contact surface side lateral region in a concave shape and positive dough sheet with middle section Boundary portion nearby warpage, the state that is erected in the way of the skin for approaching wearer.

Brief description of the drawings

Fig. 1 is a kind of basic composition of the disposable diaper for the embodiment for being denoted as the absorbent commodity of the present invention Top view.

Fig. 2 is Fig. 1 II-II line sectional views.

Fig. 3 is the top view and its part amplification plan view of the positive dough sheet for the disposable diaper for representing first embodiment.

Fig. 4 is by the stereogram of a part of enlarged representation of the middle section of composite sheet used in first embodiment.

Fig. 5 is by the stereogram of a part of enlarged representation of the lateral region of composite sheet used in first embodiment.

Fig. 6 is by the top view of a part of enlarged representation of the middle section of composite sheet used in first embodiment.

Fig. 7 is by the top view of a part of enlarged representation of the middle section of composite sheet used in first embodiment.

Fig. 8 is by the amplification plan view of the further enlarged representation of a part for the middle section shown in Fig. 6 and Fig. 7.

Fig. 9 (a) is Fig. 8 VIa-VIa line sectional views, and Fig. 9 (b) is Fig. 8 VIb-VIb line sectional views.

Figure 10 is by the top view of a part of enlarged representation of the lateral region of composite sheet used in first embodiment.

Figure 11 is Figure 10 III-III line sectional views.

Figure 12 is Figure 10 IV-IV line sectional views.

Figure 13 (a) and Figure 13 (b) is by the vertical view of a part of enlarged representation of the lateral region of the composite sheet shown in Fig. 3 Figure.

Figure 14 (a) and Figure 14 (b) is by the vertical view of a part of enlarged representation of the lateral region of the composite sheet shown in Fig. 3 Figure.

Figure 15 is the schematic diagram for representing to be applied to the device of the composite sheet shown in manufacture Fig. 3.

Figure 16 is by the stereogram of the state of the middle section forming portion decomposition of the first roller in the device shown in Figure 15.

Figure 17 is by the stereogram of the state of the lateral region forming portion decomposition of the first roller in the device shown in Figure 15.

Figure 18 is by the figure of the periphery planar development of the middle section forming portion of the first roller in the device shown in Figure 15.

Figure 19 is by the figure of the periphery planar development of the sidepiece forming portion of the second roller in the device shown in Figure 15.

Figure 20 is by the circle of the middle section forming portion of the first roller shown in the convex portion of the second roller shown in Figure 19 and Figure 18 The figure of the state plane expansion of side face occlusion.

Figure 21 is by the figure of the periphery planar development of the lateral region forming portion of the first roller in the device shown in Figure 15.

Figure 22 is by the figure of the periphery planar development of the lateral region forming portion of the second roller in the device shown in Figure 15.

Figure 23 is by the circle of the lateral region forming portion of the first roller shown in the convex portion of the second roller shown in Figure 22 and Figure 21 The figure of the state plane expansion of side face occlusion.

Figure 24 is the top view of the positive dough sheet for the disposable diaper for representing second embodiment.

Figure 25 is by the stereogram of a part of enlarged representation of the lateral region of composite sheet used in second embodiment.

Figure 26 is by the top view of a part of enlarged representation of the lateral region of composite sheet used in second embodiment.

Figure 27 is by the top view of the further enlarged representation of a part for the lateral region shown in Figure 26.

Figure 28 (a) is that Figure 27 VIa-VIa lines sectional view, Figure 28 (b) are Figure 27 VIb-VIb line sectional views.

Figure 29 is for manufacturing the first roller of composite sheet used in second embodiment and the lateral region shape of the second roller Into the figure corresponding to Figure 23 in portion.

Figure 30 is the top view of the positive dough sheet for the disposable diaper for representing the 3rd embodiment.

Figure 31 is by the top view of a part of enlarged representation of the middle section of composite sheet used in the 3rd embodiment.

Figure 32 is by the top view of a part of enlarged representation of the lateral region of composite sheet used in the 3rd embodiment.

Figure 33 is the top view of the positive dough sheet for the disposable diaper for representing the 4th embodiment.

Figure 34 is will to be put used in the 4th embodiment near the middle section of composite sheet and the boundary portion of lateral region The top view represented greatly.

Va-Va lines sectional view, Figure 35 (b) that Figure 35 (a) is Figure 34 are that Figure 34 Vb-Vb lines sectional view, Figure 35 (c) is Figure 34 Vc-Vc line sectional views.

Figure 36 (d) is that Figure 34 Vd-Vd lines sectional view, Figure 36 (e) are Figure 34 Ve-Ve line sectional views.

Figure 37 be for manufacture the 4th embodiment used in composite sheet the first roller and the second roller correspond to Figure 20 With Figure 23 figure.

Figure 38 is to represent the dorsal part in addition to the basic composition shown in Fig. 1, also with the disposable diaper preferably comprised The top view of portion side.

Figure 39 is to represent the company in the elastomeric element configuring area of the drosal part formation of the disposable diaper shown in Figure 38 The schematic top plan view of the preferred disposition of continuous convex portion and elastomeric element.

Embodiment

If as the technology described in patent document 3, in the lateral zones of the positive dough sheet for the both sides for being configured at absorber Domain forms difference of height than configuration concavo-convex high bumps between them, then by the absorbent commodity to be compressed by encapsulation During the state keeping being filled in packaging bag, pressure is concentrated in the high convex portion of height for being present in lateral region, the height of convex portion Degree is difficult to maintain, when improving the renewal of the degree of compression or keeping, may cause the concavo-convex leak preventing effect brought Reduction.

In addition, in positive dough sheet, forming the side with continuous or rows of convex portion on the length direction of absorbent commodity In the case of portion region, when absorbent commodity shrinks in the longitudinal direction because of three-dimensional gauffer or leg creases etc., lateral region There is wrinkle pleat, possibly can not fully obtain the concavo-convex leak preventing effect brought.

The technical problem of the present invention is to provide the absorbent commodity that above-mentioned prior art can be overcome to be had the disadvantage that.

Below, based on the preferred embodiment of the present invention, with reference to drawing, the present invention will be described.

The disposable diaper 100 that Fig. 1 and Fig. 2 are denoted as a kind of embodiment of the absorbent commodity of the present invention is (following Also referred to as diaper 100) basic structure.

As depicted in figs. 1 and 2, diaper 100 includes the positive dough sheet 12 of liquid permeability, back sheet 13, the Yi Jipei of opaque liquid Put the absorber 14 between two panels 12,13.On back sheet 13, opaque liquid is concept also including difficult liquid permeability, In addition to including back sheet 13 completely not by the situation of liquid, situation about also being constituted including piece by water-repellancy etc. etc..

Diaper 100 have article length direction Xa and item width direction Ya, article length direction Xa be wearing when with Diaper 100 is being launched into plane shape by the consistent direction of the fore-and-aft direction of wearer, item width direction Ya as shown in Figure 1 It is orthogonal with article length direction Xa under state.In addition, configuration is in wearer when diaper 100 has wearing on the Xa of article length direction Veutro veutro portion A, wearing when configuration wearer dorsal part drosal part B and between veutro portion A and drosal part B Crotch bottom C.Diaper 100 is the disposable diaper of deploying type, pull stap 17 is provided with drosal part B both sides of the edge portion, in abdomen Region 18 is taken provided with the snapping pull stap 17 in sidepiece A outer surface.

Absorber 14 in diaper 100 includes absorbent core 14a and coats absorbent core 14a clad sheet 14b.Absorb Property core 14a can by the absorbency fiber such as paper pulp fiber product is slim or absorbency fiber and water absorbent polymer it is mixed Close the slim composition of product.As absorbency fiber, for example, it can enumerate paper pulp fiber, rayon fiber, cotton thread fiber, acetate fiber The hydrophilic fibre of the cellulose families such as element.In addition to the hydrophilic fibre of cellulose family, it can also use and utilize surface-active Agent etc. is by material obtained from the fiber hydrophiling being made up of synthetic resin such as polyolefin, polyester, polyamide.It is used as clad sheet 14b, for example, can use lining paper (tissue paper) or the non-woven fabrics of water penetration.For clad sheet 14b, 1 can be used By absorbent core 14a integral coatings, 2 combination of the above can also be coated absorbent core 14a., can be with as back sheet 13 Laminate of resin film, resin film and non-woven fabrics using opaque liquid or water-repellancy etc..

In the article length direction Xa of diaper 100 both sides, the three-dimensional gauffer formation for being equipped with flexible part 15a is used Piece 15, pass through elastomeric element 15a contraction so that in crotch bottom C-shaped into the skin towards wearer under wearing state The three-dimensional gauffer that side is erected.In addition, at the crotch bottom C position being configured at around thigh, leg bullet is equipped with elongation state Property part 16, by its shrink so that under wearing state crotch bottom C-shaped into improve to the fit around wearer's thigh Leg creases.

The composite sheet 10 of the positive dough sheet 12 of the disposable diaper 100 of first embodiment as shown in Figure 3 is constituted.

As shown in figure 3, composite sheet 10 has the first direction along length direction (article length direction) Xa of diaper 100 X and width (item width direction) Ya along diaper 100 second direction Y.In addition, as shown in figure 3, composite sheet 10 A pair with the middle section M that convex portion 40~42 is formed with pattern different from each other and positioned at middle section M both sides Lateral region S, S.Middle section M is located at width (item width direction) Ya of diaper 100 central portion, a pair of lateral zones The foreign side of domain S, S in the middle section M both sides of the edge along second direction Y is formed.With being formed with pattern different from each other Convex portion middle section M and its lateral region S, S of both sides, preferably on the length direction Xa of diaper 100 at least formed on Crotch bottom C, more preferably from crotch bottom C over to veutro portion A and drosal part B either or both formation or throughout absorption The total length of body 4, the further preferably total length throughout diaper 100.

Fig. 4 represents that, by the stereogram of the middle section M of composite sheet 10 a part of enlarged representation, Fig. 5 is represented composite sheet The stereogram of 10 lateral region S a part of enlarged representation.Lateral region S is in the alongst Xa on diaper 100 Central Line (not shown) symmetrical position formed, each lateral region S forms bumps with the pattern shown in Fig. 5 respectively.

As shown in Figure 4 and Figure 5, composite sheet 10 middle section M and lateral region S arbitrary region, pass through embossing First 1 of stacking and second 2 is partially engageable with by processing, forms multiple junction surfaces, first 1 beyond the junction surface Position forms the convex portion that the skin side towards wearer is protruded to prominent away from the direction of second 2.In the center of composite sheet 10 Region M and lateral region S arbitrary region, the equal general planar in surface of second 2 side form macrorelief first 1 side It is concavo-convex.

First 1 and second 2 is made up of sheet material.As sheet material, for example, non-woven fabrics can be used, weaves cotton cloth and is knitted The fibre plates such as thing or film etc., consider from viewpoints such as skin senses of touch, fibre plate are preferably used, particularly preferably using non-woven fabrics.Constitute The species of the sheet material of first 1 and second 2 can be with identical, or can also be different.

As using non-woven fabrics as non-woven fabrics when constituting the sheet material of first 1 and second 2, for example, it can enumerate Hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spunlace non-woven cloth, melt spraying non-woven fabrics, resin bonded non-woven cloth, needle punched non-woven fabrics etc..Also may be used With the stacking being formed by combining using the layered product that two or more is combined by these non-woven fabrics or by these non-woven fabrics and film Body.Among these, hot-wind nonwoven cloth or spun-bonded non-woven fabrics are preferably used.Make as the sheet material for constituting first 1 and second 2 The grammes per square metre of non-woven fabrics is preferably 10g/m²More than, more preferably 15g/m²More than, it is additionally preferred to it is 40g/m²Hereinafter, it is more excellent Elect 35g/m as²Below.The grammes per square metre of non-woven fabrics is preferably 10g/m²Above 40g/m²Hereinafter, more preferably 15g/m²Above 35g/m² Below.

As the fiber for constituting non-woven fabrics, the fiber being made up of various thermoplastic resins can be used.It is used as thermoplastic resin Fat, can enumerate the polyester, nylon 6, nylon66 fiber of polyolefin, the polyethylene terephthalate of polyethylene, polypropylene etc. etc. Deng polyamide, polyacrylic acid, polyalkyl methacrylate, polyvinyl chloride, Vingon etc..These resins can be independent Using a kind, or use blend of more than two kinds.And it is possible to be made with the form of the composite fibre of core-sheath-type, parallel type etc. With.

(the middle section M of composite sheet 10 composition)

Fig. 6 and Fig. 7 represent the middle section M of the composite sheet 10 shown in Fig. 3 amplification plan view.Fig. 8 is by Fig. 6 and Fig. 7 The amplification plan view of a part of enlarged representation of shown middle section.The VIa-VIa lines that Fig. 9 (a) and Fig. 9 (b) are Fig. 8 are cut The VIb-VIb line sectional views of face figure and Fig. 8.

As shown in Fig. 3, Fig. 4 and Fig. 6, in the middle section M of composite sheet 10, above-mentioned convex portion 40 is with the face of composite sheet 10 The scattered state in interior direction is formed.Convex portion 40 is in zigzag configuration.Further specifically, as shown in fig. 6, convex portion 40 is with bag Include：Multiple convex portions 40 at certain intervals along a first direction the first direction convex portion row 4X of X arrangements, multiple convex portions 40 between certain Every the second direction convex portion row 4Y arranged along second direction Y and multiple convex portions 40 at certain intervals along relative to first party Configured to X and the third direction convex portion row 4XY of the inclined third direction arrangement of second direction Y both directions mode.In addition, The allocation position of the mutual convex portions 40 of adjacent second direction convex portion row 4Y staggers half on second direction Y on first direction X Pitch, X's allocation position of the mutual convex portions 40 of adjacent first direction convex portion row 4X staggers in a first direction on second direction Y Half pitch.

In addition, as shown in Fig. 8, Fig. 9 (a) and Fig. 9 (b), being formed at middle section M each convex portion 40 of composite sheet 10 by height Convex portion 41 ' and 4 low convex portion 42 are constituted, wherein, overleaf side has hollow bulb 41V for high convex portion 41 ', forms the top of the convex portion 40 Portion 40t, 4 low convex portion 42 is formed around the high convex portion 41 ' with the state linked with the high convex portion 41 '.In this specification In, the low convex portion 42 ' formed on high convex portion 41 ' and around the high convex portion 41 ', the state of so-called link refers to adjacent height Convex portion 41 ' and low convex portion 42 ' are not separated by junction surface 3, but the surface continuously relative to first 1 side at junction surface 3 is grand Rise.

When overlooking composite sheet 10, there is low convex portion 42 partly to prolong from the high convex portion 41 ' of central portion to four directions for each convex portion 40 The shape gone out, in substantially crosswise.In other words, when overlooking composite sheet 10, each convex portion 40 is adjacent in the circumference of the convex portion There is the depressed part 45 being recessed to the high side of convex portion 41 ' between low convex portion 42 '.

In composite sheet 10, as junction surface 3 formed by first 1 of stacking and the engagement of second 2 part, the is formed with One junction surface 31, the second junction surface 32 and the 3rd junction surface 33.In these junction surfaces 31~33, first 1 and second 2 quilt Integratedly pressurize, other any portion of density of the density ratio of two panels are all high, preferably pass through the composition tree of the piece of one or both The melting of fat and solidification afterwards, make to carry out thermal welding between two panels.

In addition, as shown in fig. 7, the junction surface 3 in the middle section M of composite sheet 10 is formed with the configuration pattern of clathrate, The configuration pattern of above-mentioned clathrate by passing through multiple checker boards of multiple junction surfaces 3 linear arrangement at spaced intervals respectively LR1 is arranged into the first junction surface and by multiple junction surfaces 3, the linear multiple grid arranged are formed at spaced intervals respectively Second junction surface row LR2 is constituted, and the convex portion 40 of above-mentioned form is respectively formed with the position equivalent to mesh of the grid.Multiple The middle section M of piece 10, grid formation the first junction surface row LR1 and grid formation the second junction surface row LR2 are closed in respective row Every intersected with each other in the junction surface of one, it is formed with the mesh of the grid of convex portion 40 and will be wrapped respectively by 8 junction surfaces 3 around it Enclose.

In addition, as shown in fig. 7, the junction surface 3 in the middle section M of composite sheet 10 be configured to relative to first direction X and The inclined inclination clathrates of second direction Y.That is, the first junction surface of grid formation row LR1 and the second junction surface of grid formation row LR2 All directions both with respect to first direction X and second direction Y are tilted.The first junction surface of grid formation row LR1 and grid formation the Two junction surfaces row LR2 angulations θ (reference picture 7) is preferably less than more than 30 ° 165 °, be more preferably more than 45 ° 150 ° with Under, further preferably more than 90 ° and for less than 120 °.

As shown in Figure 6 and Figure 8, in the middle section M of composite sheet 10 the first junction surface 31, the second junction surface 32 and the 3rd Allocation position of the junction surface 33 on second direction Y is different.The junction surface 33 of first junction surface the 31~the 3rd is that similar shape etc. is big. This, similar shape etc. refers to that greatly shape is identical and difference of size is within ± 20% on area.First junction surface the 31~the 3rd connects Shape when conjunction portion 33 is overlooked is rectangle, and each side of the rectangle is consistent with first direction X or second direction Y.

The multiple of first junction surface 31 are configured to a row along second direction Y with a constant pitch, form the first junction surface row R1.Second junction surface 32 be also it is multiple one row is configured to a constant pitch along second direction Y, form the second junction surface row R2. 3rd junction surface 33 be also it is multiple one row is configured to a constant pitch along second direction Y, form the 3rd junction surface row R3.

First junction surface arrange R1 and the 3rd junction surface row R3 separate certain intervals be formed with a first direction on X it is multiple rows of, the Pitch (distance between central point) between one junction surface row R1 second direction Y junction surface arranges R3 second party with the 3rd junction surface It is identical to the pitch (distance between central point) between Y junction surface.In addition, on the allocation position on second direction Y, being connect with the 3rd Conjunction portion 33 is located at the central portion between the first junction surface 31 adjacent on second direction Y and the first junction surface 31 is located at second direction Y The mode of central portion between upper the 3rd adjacent junction surface 33 is configured.Second junction surface row R2 be formed at the first junction surface row R1 with Have respectively between central portion between the row R3 of 3rd junction surface, with the first junction surface row R1 and between the row R3 of the 3rd junction surface There is interval.Second junction surface row R2 junction surface between pitch (distance between central point) be first and the 3rd junction surface row R1, R3 In junction surface between pitch (distance between central point) half, when being seen along second direction Y, the configuration at the second junction surface 32 Position be the first junction surface 31 allocation position and the 3rd junction surface 33 allocation position central portion.

Formed in the manner by the first~the 3rd junction surface 31~33 and manufacture composite sheet 10 when pair Press or attract from face side from rear side in the part equivalent to the part fenced up by the first~the 3rd junction surface 31~33 Deng the convex portion 40 of multiple specific forms can be formed in the middle section M of composite sheet 10.

Convex portion 40 is further detailed, as shown in figure 8, being included in the row R1 of the first junction surface adjacent 2 the One junction surface 31, arrange positioned at first junction surface R1 both sides 2 the second junction surfaces row R2 totally 4 the second junction surfaces 32, with And 8 engagement portion envelopes altogether at R3 2 the 3rd junction surfaces 33 are arranged positioned at 2 the 3rd junction surfaces of more lateral.When overlooking, The high convex portion 41 ' of convex portion 40 is surrounded by 4 the second junction surfaces 32, rounded or ellipse, is wrapped by this 4 the second junction surfaces 32 The top 40t of the central portion formation convex portion 40 in the region enclosed.First low convex portion 42a is located at relative on first direction X 2 second Between junction surface 32, the second low convex portion 42b is located between 2 the second junction surfaces 32 relative on second direction Y.In addition, 4 Two junction surfaces 32 respectively become the state for being partly into 4 above-mentioned depressed parts 45.Convex portion 40 and other adjacent convex portions 40 Between, by including surrounding 8 junction surfaces 3 of convex portion 40 and the annular recessed portion of the 3rd convex portion 43 between these junction surfaces 3 Separate.It is due to height of the height of the 3rd convex portion 43 with constituting convex portion 40 although the 3rd convex portion 43 is " convex portion " on word Convex portion 41 ' is compared all relatively low with low convex portion 42, therefore is relative recess from the point of view of these convex portions.

In addition, being arranged on the second direction convex portion adjacent with the row 4Y of the second direction convex portion including convex portion 40 shown in Fig. 6 4Y convex portion 40, the first junction surface and the first junction surface row, it is opposite with the 3rd junction surface and the 3rd junction surface row.That is, on this Convex portion 40 in the row 4Y of second direction convex portion, is included 2 the 3rd junction surfaces 33 adjacent in the row R3 of the 3rd junction surface, positioned at this 2 the second junction surfaces row R2 of the both sides of 3rd junction surface row totally 4 the second junction surfaces 32 and positioned at 2 of more lateral the 8 engagement portion envelopes altogether at one junction surface row R1 2 the first junction surfaces 31.

(the lateral region S of composite sheet 10 composition)

As shown in figure 3, in a pair of lateral regions S, S of composite sheet 10, first 2 position beyond junction surface is to remote Convex portion formed by the direction protrusion of second is formed with the pattern different from the convex portion in middle section M.The pattern of convex portion Different statements include the different situation of the different situations of configuration, the form of convex portion of only convex portion, both different situation Any situation.The different states of configuration of convex portion also include the different situation of distance between convex portion.In addition, the form of convex portion is different The state also different situation of plan view shape including convex portion.

In the composite sheet 10 of present embodiment, the configuration of convex portion and form in middle section M and a pair of lateral regions S, S not Together.

Figure 10 represents the lateral region S of the composite sheet 10 shown in Fig. 3 amplification plan view.Figure 11 and Figure 12 are respectively Figure 10 III-III lines sectional view, IV-IV line sectional views.

As shown in these figures, in the lateral region S of composite sheet 10, it is formed with its first 1 is constituted as height The first convex portion 41, the second convex portion 42 and the 3rd convex portion 43 of 3 kinds of convex portions different from each other.The respective difference in this 3 kinds of convex portions is Its height is different.Specifically, the height of the second convex portion 42 and the first convex portion 41 are equal extent or lower than it, and the 3rd convex The height in portion 43 is less than the height of the second convex portion 42.That is, the height of the first convex portion 41 is being set to H₁, by the height of the second convex portion 42 Degree is set to H₂, the height of the 3rd convex portion 43 is set to H₃When, this 3 height meet H₁≥H₂＞ H₃Relation.Each convex portion 41,42, 43 be respectively formed with it is multiple.The shape during vertical view of the first convex portion 41 and the second convex portion 42 in lateral region S is substantially round Shape.On circular diameter, the first convex portion 41 is more than the second convex portion 42.First convex portion 41 and the second convex portion 42 are in a first direction The shape at top is respectively provided with the section of X and second direction Y any direction.And the shape during vertical view of the 3rd convex portion 43 is in edge First direction X length it is substantially rectangular.The upper surface general planar of 3rd convex portion 43.

Figure 13 (a) and Figure 13 (b) are to choose the top view that Fig. 9 major part is represented.From these figures, composite sheet 10 Lateral region S in, the second convex portion 42 of first convex portion 41 of more than 1 and more than 1, which link, to be formed ring-type and links convex portion 44. Ring-type links when convex portion 44 is overlooked in substantially circular.Ring-type links convex portion 44 and passes through 6 the first convex portions 41 and 2 the second convex portions 42 link formation.Specifically, it is in that the symmetrical position of line has a pair by edge clipping center line CL when overlooking composite sheet 10 The first convex portion group 41A that 3 first convex portion 41a, 41b, 41c of first direction X configurations are constituted, wherein, center line CL be by The line that 2 second convex portions 42a, 42b that X is configured separated by a distance center are connected to each other along a first direction.Constitute the first convex portion X links group 41A 3 first convex portions 41a, 41b, 41c along a first direction.In addition, constituting 3 of the first convex portion group 41A the In one convex portion 41a, 41b, 41c, the position positioned at first convex portion 41a, 41c of the end of X along a first direction center, on edge And same position is in when second direction Y is seen.Moreover, positioned at the first convex portion 41b of the 2nd of X along a first direction and other First convex portion 41a, 41c compare, to foreign side's bias along second direction Y.In a pair of first convex portion group 41A, each first Be located at first convex portion 41a, 41a of the end side of an X side along a first direction in the group 41A of convex portion, with 2 the second convex portion 42a, The the second convex portion 42a for being located at the end side of an X side along a first direction in 42b links.In addition, a pair of first convex portion group 41A In, first convex portion 41c, 41c of the end side of X the opposing party along a first direction is located in each first convex portion group 41A, with 2 The the second convex portion 42b for being located at the end side of X the opposing party along a first direction in second convex portion 42a, 42b links.Thus, by altogether 6 first convex portions 41a, 41b, 41c and totally 2 second convex portions 42a, 42b 8 convex portions altogether form 1 ring-type and link convex portion 44。

When overlooking composite sheet 10, ring-type links that X is spaced apart along a first direction for convex portion 44 is point-blank configured to Row pattern, constitutes ring-type and links convex portion row.The ring-type, which links convex portion and come, spaced apart on second direction Y is configured with multiple rows of. When being conceived to 1 ring-type link convex portion row, between ring-type adjacent thereto links convex portion row, ring-type links matching somebody with somebody for convex portion 44 Put the half pitch that staggers.In addition, at 1 be conceived to during the multiple ring-types for constituting 1 ring-type link convex portion row link convex portion 44 When, the convex portion for constituting ring-type link convex portion 44 is overlapping with its front and rear lobe portion for constituting adjacent ring-type link convex portion. For example, being conceived to 1 ring-type shown in such as Figure 14 (a) links convex portion 44A and along a first direction adjacent thereto another of X When ring-type links convex portion 44B, 2 first convex portions 41c, 41c and 1 the second convex portion 42b and ring-type that ring-type links convex portion 44A connect 2 first convex portions 41a, the 41a and 1 the second convex portion 42a for tying convex portion 44B are overlapping.In addition, being conceived to 1 shown in such as Figure 14 (b) When individual ring-type link convex portion row 45A and ring-type adjacent thereto link convex portion row 45B, the 1 of ring-type link convex portion row 45A is constituted Individual ring-type links convex portion 44A first convex portion 41b, 41c, and 1 ring-type that convex portion row 45B is linked with constituting ring-type links convex portion 44B first convex portion 41a, 41b is overlapping.

As shown in Figure 13 (a) and Figure 13 (b), it is convex that the substantially central portion in the ring that ring-type links convex portion 44 is formed with center Portion 46.Central spud 46 links in 1 ring-type forms 1 in the ring of convex portion 44.Central spud 46 is same with other convex portions, passes through To prominent away from the direction of second and formed, formed preferably by ground for first 1.The being shaped as during vertical view of central spud 46 Circular.Circular diameter and the second convex portion 42 is substantially uniform.In addition, as shown in figure 12, the height H of central spud 46₄With The height H of second convex portion 43₂It is roughly the same.The height H of central spud 46₄Than the height H of the 3rd convex portion₃It is high.Central spud 46 is in The shape at top is respectively provided with the section of X and second direction Y any direction in a first direction.

Ring-type links convex portion 44 and central spud 46 in its ring as shown in Figure 13 (a) and Figure 13 (b), recessed by ring-type Portion 47 is separated.Annular recessed portion 47 is made up of junction surface and the 3rd convex portion 43.X is along a first direction when specifically, by overlooking Junction surface is constituted for generally square second junction surface 32 when the first junction surface 31 of the rectangle of lengthwise and vertical view, by these Junction surface 31,32 and 2 the 3rd convex portions 43 constitute annular recessed portion 47.Wherein, although being " convex portion " on the word of the 3rd convex portion 43, Be the 3rd convex portion 43 height with constitute ring-type link convex portion 44 the first convex portion 41 and the second convex portion 42 height compared with all It is relatively low and also relatively low compared with the height of central spud 46, therefore be relative recess from the point of view of these convex portions.

Annular recessed portion 47 is made up of 2 the first junction surfaces 31 and 4 the second junction surfaces 32 and 2 the 3rd convex portions 43.In detail For carefully, as shown in Figure 13 (b), when overlooking composite sheet 10, make clipping center line CL in the symmetrical position of line in the presence of a pair Second junction surface 32, the first junction surface 31 and the second junction surface 32 connect according to the second junction surface 32, the first junction surface 31 and second The order in the conjunction portion 32 junction surface group 33 that X is configured along a first direction, wherein, center line CL is by X along a first direction The line that the center of 2 the 3rd convex portions 43 configured separated by a distance is connected to each other.Constitute 3 junction surfaces 31,32 of junction surface group 33 In, the position positioned at the center at the second junction surface 32 of the end of X along a first direction is in when being seen along second direction Y Same position.Moreover, positioned at first junction surface 31 of the 2nd of X along a first direction compared with 2 the second junction surfaces 32, to Along second direction Y foreign side's bias.

As shown in Figure 10, the first direction in a direction in multiple faces along as composite sheet 10 of central spud 46 X is spaced apart to be point-blank configured to row pattern, constitutes central spud row.The central spud comes and separates one on second direction Y Set a distance is configured with multiple rows of.When being conceived to 1 central spud row, between central spud row adjacent thereto, central spud 46 configuration is staggered half pitch.It is also shown in FIG. 10, in multiple faces along as composite sheet 10 of the second convex portion 42 The first direction X in one direction is spaced apart to be point-blank configured to row pattern, constitutes the second convex portion row.Second convex portion comes It is spaced apart on second direction Y to be configured with multiple rows of.It is convex adjacent thereto second when being conceived to 1 the second convex portion row Between portion row, the configuration of the second convex portion 42 is staggered half pitch.

Lateral region S above-mentioned the second convex portion row arranges with central spud, and when overlooking composite sheet 10, configuration is in same position Put.Specifically, as shown in Figure 10, the second convex portion 42 and central spud 46 are along a direction in the face as composite sheet 10 First direction X alternately and linearly configuration.In addition, in addition to the second convex portion 42 and central spud 46, also having in mind When three convex portions 43, this 3 kinds of convex portions, with the second convex portion 42, the 3rd convex portion 43, the convex portion 43 of central spud 46 and the 3rd order Along a direction in the face as composite sheet 10 first direction X regularly and linearly configuration.

On the other hand, on the second direction Y orthogonal with first direction X, as shown in Figure 10, with positioned at along second direction The first junction surface 31, central spud 46, the first junction surface 31, the first convex portion 41, the second convex portion 42 on the straight line L of Y extensions, the One convex portion 41 be a cycle, the cycle along second direction Y repeatedly.

Middle section M junction surface 3 (the first~the three junction surface) and the first junction surface 31 in lateral region S and Two junction surfaces 32 can be formed by various modes.In first 1 and second 2 situation about being made up of the material for being capable of thermal welding Under, it can use and utilize heat, ultrasonic wave, welding of high frequency etc..Material with first 1 and second 2 is unrelated, additionally it is possible to use Utilize the bonding of bonding agent., should when the engagement of two panels 1,2 is formed into junction surface using the welding using heat, ultrasonic wave, high frequency Junction surface is compared with the position beyond the junction surface by densification.In piece 1,2 by the case that fibre plate is constituted, because of densification Make that distance shortens between fiber or fibre morphology is lost and occurs membranization.In the manufacture method of composite sheet 10 described later, pass through Thermal welding engages two panels 1,2, forms the junction surface being made up of weld portion.

In the diaper 100 of first embodiment, by the composite sheet 10 constituted with more than with its central area as shown in Figure 3 Domain M is located at the mode that the width Ya of diaper central portion, a pair of lateral regions S, S distinguish centrally located region M both sides Configuration is used on absorber 14 as the positive dough sheet 12 of liquid permeability.

In addition, the composite sheet 10 of diaper 100, as described above, by middle section M and a pair of lateral regions S, S with not Same pattern formation junction surface so that the area ratio at the junction surface 31,32 in lateral region S is more than connecing in middle section M The area ratio in conjunction portion 3.

Therefore, according to the diaper 100 of present embodiment, hold in the middle section M of positive dough sheet with the border of lateral region S, S Warpage is also easy to produce, diaper is easily deformed the shape for ship shape when dressing diaper, as a result results in excellent leak resistance.Separately Outside, it is different with the formation pattern of the lateral region S convex portions formed in middle section M by making, the excellent leak resistance is realized, Even if the state for being thus filled in diaper 100 in packaging bag to compress is taken care of, the decline for occurring leak resistance is not easy to.

In contrast, only try every possible means to make the convex portion of the height of lateral region S convex portion higher than middle section M height, In the case of making transverse leak-proof raising, if the state being filled in compressing in packaging bag is taken care of, the convex portion of lateral region is just It can be flattened, be easily caused the reduction of leak resistance.Keeping mentioned here is included in keeping in manufacturing works, in circulation rank The keeping (the also display state including shop) of section, keeping in ordinary consumer family etc..

It is deformed into from improving from the viewpoint of the morphotropism of boat-like shape, the area ratio at the junction surface in lateral region S Es (%) and the area ratio Em (%) at the junction surface in middle section M difference (Es-Em, percentage point) is preferably more than 5%, More preferably more than 10%.In addition, the area ratio Es at the junction surface in lateral region S, using more than above-mentioned area ratio Em as Premise, preferably more than 5%, more preferably more than 10%, it is additionally preferred to be less than 50%, more preferably less than 30%, in addition Preferably less than more than 5% 50%, it is more preferably less than more than 10% 30%.In addition, the junction surface Em in middle section M, with Premised on above-mentioned area ratio Es, preferably less than 30%, more preferably less than 20%, it is additionally preferred to for more than 3%, more Preferably more than 5%, it is additionally preferred to for less than more than 3% 30%, more preferably less than more than 5% 20%.

(calculation method of the area ratio at junction surface)

Calculate the area for configuring 1 cycle of X and second direction Y regularly repeatedly along a first direction of junction surface and convex portion The area ratio at the junction surface in domain.The assay method of the area at junction surface is as follows：Use microscope (KEYENCE CORPORATION VHX-1000), with 20~100 times of multiplying power from second 2 unilateral observation composite sheet 10, use image solution Analysis apparatus, determines the area (cm in the region in above-mentioned 1 cycle²) and junction surface area (cm²), with [(area at junction surface)/ (area in 1 cycle)] × 100 represent.

It is deformed into from improving from the viewpoint of the morphotropism of boat-like shape, the preferably lateral region S of composite sheet 10 bending Rigidity is more than middle section M bending stiffness.Bending stiffness is determined according to JIS P8126.Specific method is as described below.

(assay method of bending stiffness)

By composite sheet 10, X cuts out 30mm, cuts out 110mm along second direction Y along a first direction, and test film is made, with First side forms height 30mm cylindrical shape for the mode in outside, using ultrasonic sealing, with overlapping widths 10mm by upper end Fixed with lower end, be used as determination sample.Using compression test, read to compress with compression speed 10mm/min on cylinder direction and survey Determine maximum load shown when around upper end.It regard the average value of 5 samples as bend stiffness.

The ratio between lateral region S bending stiffness and middle section M bending stiffness are preferably more than 1.1, more preferably 1.2 More than.Lateral region S bending stiffness, it is preferably more than 10cN, more excellent premised on the bending stiffness more than middle section M Elect more than 15cN as, it is additionally preferred to for below 50cN, more preferably below 40cN, it is additionally preferred to for more than 10cN below 50cN, More preferably more than 15cN below 40cN.In addition, middle section S bending stiffness, using the bending stiffness less than lateral region S as Premise, preferably below 40cN, more preferably below 30cN, it is additionally preferred to for more than 5cN, be more preferably more than 10cN, in addition Preferably more than 5cN below 40cN, more preferably more than 10cN below 30cN.

In addition, in the diaper 100 of first embodiment, middle section M convex portion 40 and lateral region S convex portion 41~ 43rd, 46 deformed and formed by way of making first 1 with away from second 2, thus in middle section M and lateral region S Sense of touch (skin sense of touch) it is also excellent.

It is excellent from even if with from the viewpoint of compressing and also resulting in good result after the state keeping in being filled in packaging bag Select the maximum convex portion of the height of middle section M convex portion 40 and lateral region S convex portion 41~43,46 mutual highly identical, In above-mentioned composite sheet 10, first that preferably the height H1 and lateral region S of middle section M convex portion 40 height are maximum is convex The height H1 in portion 41 is identical.Height identical described here is stated in addition to identical situation, in addition to substantial Identical situation, the height of such as one convex portion is less than more than 90% 110% situation of the height of another convex portion.

In addition, in the diaper 100 of first embodiment, being formed at lateral region S the first junction surface 31, its first party It is long to X length of the length than second direction Y, times at its first direction X junction surface 3 of the length than being formed at middle section M The first direction X at meaning junction surface 31~33 length is all long.

By forming the junction surface 31 of such lengthwise in lateral region S, diaper 100 is easily in middle section M and sidepiece Warpage near region S border, when being compressed in crotch bottom of diaper etc. by huckle to width Ya, diaper is able to maintain that ship The shape of shape, and can mildly be compressed, thus, the leakage of soft stool or urine etc. is less susceptible to occur during wearing.Such effect Fruit is such in composite sheet 10A as of fig. 24, the first party at all junction surfaces (junction surface 31) for being formed at lateral region S To the first direction X at any junction surface 31~33 of the X length than being formed at middle section M length it is all long in the case of it is also same Sample can be obtained.

In the junction surface for being formed at lateral region S, first direction X any engagement of the length than being formed at middle section M The length at portion all long lengthwise junction surfaces (the first junction surface 31), is preferably formed in middle section M first direction X length More than 1.2 times, more preferably more than 1.5 times of the length of first direction in maximum junction surface (junction surface 31~33), separately Outer is preferably less than 5 times, more preferably less than 3.5 times, it is additionally preferred to be less than more than 1.2 times 5 times, be more preferably 1.5 times with Upper less than 3.5 times.

In addition, in the diaper 100 of first embodiment, as described above, in middle section M, convex portion 40 is cross-shaped to match somebody with somebody Put, in lateral region S, the ring-type that 6 the first convex portions 41 and 2 ring-types of the second convex portion 42 link links convex portion 44 in staggeredly Shape is configured.On lateral region S, central spud 46 is also in zigzag configuration.

By having convex portion 40 middle section M is in zigzag configuration, lateral region S also it is in zigzag configuration have make convex portion 41st, the ring-type that 42 ring-types link links convex portion 44, and diaper 100 is easier to be deformed into along the ship shape between the crotch of wearer Shape, the anti-leakage of soft stool or urine from front and rear and side is further improved.Such effect is being combined as of fig. 24 Piece 10A has convex portion 40, has convex portion 41 lateral region S is also in zigzag configuration like that, middle section M is in zigzag configuration In the case of can similarly obtain.

In addition, in the diaper 100 of first embodiment, absorber 14 is by absorbent core 14a and coats the absorbent core 14a clad sheet is constituted, and absorbent core 14a does not configure this as shown in figure 1, having respectively in the crotch bottom C of diaper both sides The vertical view of absorbent core 14a formation material is concave notch part 14c, 14c.Moreover, as shown in figure 3, above-mentioned composite sheet Lateral region S, S of 10 left and right is overlapping with notch part 14c, 14c of left and right respectively.The part overlapping with notch part 14c passes through It is overlapping with lateral region S, than diaper 100 notch part 14c inside edge more outward square part to the skin side of wearer Erect, be easily deformed to be more suitable for the boat-like shape in portion between the crotch of wearer.Thus, anti-leakage is further improved.Additionally, it is preferred that Lateral region S is overlapping with notch part 14c at least a portion, overlapping more preferably with notch part 14c Zone Full.

Notch part 14c depth d1 (reference picture 1) is preferably more than 2mm, more preferably more than 8mm, it is additionally preferred to be Below 50mm, more preferably below 35mm, it is additionally preferred to for more than 2mm below 50mm, more preferably more than 8mm below 35mm. Widths of the notch part 14c depth d1 along diaper is determined.

Instead of forming notch part 4c, 14c mode in absorbent core 14a both sides, further preferably absorbent core 14a's The both sides of length direction Central Line (not shown) are clipped, the breakthrough part for setting the lateral margin from absorbent core 14a to leave respectively will be multiple The lateral region S for closing piece 10 overlaps with the breakthrough part.

The part overlapping with breakthrough part is overlapping with lateral region S, and thus the inside edge of the ratio breakthrough part of diaper 100 is more leaned on The part of foreign side is erected to the skin side of wearer, is easily deformed to be more suitable for the boat-like shape in portion between the crotch of wearer.It is preferred that Lateral region S is overlapping with least a portion of breakthrough part, overlapping more preferably with the Zone Full of breakthrough part.

In addition, in the diaper 100 of first embodiment, being equipped with the both sides of length direction solid in interior lateral edge portion The piece 15 of fixed flexible part 15a three-dimensional gauffer formation, as shown in figure 1, the inner side edge edge in the piece 15 is fixed on again On the lateral region S for closing piece 10.

It is made up of such, diaper 100 is bent in the longitudinal direction, it is easier to form the shape of ship shape.Sheet above 15 Inner side edge edge in the part being fixed on lateral region S elastomeric element 15a can also be not present.

From the viewpoint of can more reliably obtain one or more above-mentioned effect, preferred composite sheet 10 Middle section M has following composition.

Junction surface 3 in grid formation the first junction surface row LR1 and the second junction surface of grid formation row LR2 junction surface row Configuration section be preferably more than 1.1 times of beeline LL of adjacent junction surface away from (distance between central point) P1, more preferably More than 1.5 times, it is additionally preferred to for less than 10 times, more preferably less than 5 times, it is additionally preferred to be less than more than 1.1 times 10 times, it is more excellent Elect less than more than 1.5 times 5 times as.In addition, adjacent the first junction surface of grid formation row's mutual distance between center lines of LR1 and Adjacent the second junction surface of grid formation row's mutual distance between center lines of LR2 are respectively preferably more than 2mm, more preferably 3mm More than, it is additionally preferred to for below 30mm, more preferably below 20mm, it is additionally preferred to for more than 2mm below 30mm, more preferably More than 3mm below 20mm.

Be formed at middle section M convex portion 40 has high convex portion 41 ' portion of the low convex portion 42 ' from central portion preferably as described above Divide the shape extended to four directions.

When the convex portion 40 for being formed at middle section M is this form, bent in the longitudinal direction in wearing So that along the section of its length direction turn into arc-shaped, convex portion 40 from high convex portion 41 ' to equivalent to article length direction Xa First direction X extension exist low convex portion 42b be preferentially flattened, high convex portion 41 ' is difficult to be flattened.Equally, even if diaper 100 Bent in the direction of the width in wearing and to turn into arc-shaped along the section of its width, be made up of composite sheet 10 Positive dough sheet 12 convex portion 40 from high convex portion 41 ' to equivalent to item width direction Yb second direction Y extension exist it is low Convex portion 42a is preferentially flattened, and high convex portion 41 ' is difficult to be flattened.Due to such effect, middle section M results in good Skin sense of touch, prevents that sultry performance is also improved.

Extended in one direction in direction into the face of piece from high convex portion 41 ' in addition, the composite sheet 10 of present embodiment has A pair of first low convex portion 42a and the direction orthogonal with said one direction from high convex portion 41 ' into the face of piece in direction prolong The low convex portion 42b of another pair second gone out, as the 4 low convex portion 42 for constituting convex portion 40, the first low convex portion 42a from high convex portion 41 ' to outermost end extend length L4 convex portion 42bs lower than second from high convex portion 41 ' to outermost end to extend length L4 long.It is logical Cross formation and extend the different low convex portions 42 of length L4 from high convex portion 41 ', relatively easy bending can be designed in positive dough sheet 12 Direction and be relatively difficult to bending direction, for example pass through absorbability thing in the direction being easily bent for making positive dough sheet 12 and wearing Product or positive dough sheet easily bend or tortuous direction is consistent, result in can mildly warpage and show good fit Property etc. and concavo-convex convex portion be difficult to be flattened, brought by concaveconvex shape that each effect can be showed stably is disposable Diaper etc..

The first low convex portion 42a above-mentioned length L4 that extends is from the midpoint on straight line L3x lines to closest to the first low convex portion The length L4a of the edge part at the 42a junction surface 31 for extending direction leading section, wherein, straight line L3x is by edge and the first low convex portion The first low convex portion is clipped in the 42a junction surface row for extending orthogonal direction (first direction X) extension in direction (second direction Y) 42a and the straight line connected between the center at 2 adjacent junction surfaces 32.Clip the first low convex portion 42a and adjacent above-mentioned 2 connect Conjunction portion 32, can be depression K (reference picture 9 (a)) part for clipping the boundary portion for being formed at the first low convex portion 42a and high convex portion 41 And adjacent junction surface.

The second low convex portion 42b above-mentioned length L4 that extends is from the midpoint on straight line L3y lines to closest to the second low convex portion The length L4b of the edge part at the 42b junction surface 33 for extending direction leading section, wherein, straight line L3y is by edge and the second low convex portion The second low convex portion is clipped in the 42b junction surface row for extending orthogonal direction (second direction Y) extension in direction (first direction X) 42b and the straight line connected between the center at 2 adjacent junction surfaces 32.Clip the second low convex portion 42b and adjacent above-mentioned 2 connect Conjunction portion 32, can be depression K (reference picture 9 (the b)) part for clipping the boundary portion for being formed at the second low convex portion 42b and high convex portion 41 And adjacent junction surface.

In addition, in the middle section M of the composite sheet 100 of first embodiment, relatively long a pair first of length are extended Low convex portion 42a is extended from high convex portion 41 ' to the second direction Y equivalent to item width direction Ya, extend length it is relatively short one Convex portion 42b low to second is extended from high convex portion 41 ' to the first direction X equivalent to article length direction Xa.This means wearing In the direction that easily bends it is consistent with the direction being easily bent of positive dough sheet 12.Showed thereby, it is possible to mildly warpage Go out good fit etc., and concavo-convex convex portion is difficult to be flattened, and each effect brought by concaveconvex shape can stablize earth's surface It is existing.

High convex portion 41 ' preferably the boundary portion with low convex portion 42 have shown in Fig. 9 (a) or Fig. 9 (b) into convex portion 40 The recessed depression K in portion direction.

In addition, the height H2 of low convex portion 42 ' is preferably more than the 30% of the height H1 of high convex portion 41 ', more preferably 40% More than, it is additionally preferred to for less than 80%, more preferably less than 70%, specifically, preferably less than more than 30% 80%, more excellent Elect less than more than 40% 70% as.

On the height H2 of low convex portion 42 ', section is observed using digital microscope (KEYENCE CORPORATION systems), On the straight line L3x lines for the junction surface row that will be connected between the center for clipping the junction surface 32 of low convex portion and on straight line L3y lines Point midway, regard the beeline from the lower surface of second 2 to the upper surface of first 1 as height.

In addition, the height H1 of high convex portion 41 ' be preferably more than 0.5mm, more preferably more than 1mm, it is additionally preferred to for 5mm with Under, more preferably below 4mm, specifically, preferably more than 0.5mm below 5mm, more preferably more than 1mm below 4mm.Separately Outside, the height H2 of low convex portion 42 is preferably more than 0.2mm, more preferably more than 0.4mm, it is additionally preferred to for below 3mm, more preferably For below 2.5mm, specifically, preferably more than 0.2mm below 3mm, more preferably more than 0.4mm below 2.5mm.

In addition, clipping high convex portion 41 ' and between relative depressed part 45 being preferably the first of convex portion 40 apart from L5 More than 50%, more preferably more than the 60% of shorter length in direction X length Lx and second direction Y length Ly, in addition Preferably less than 180%, be more preferably less than 110%, specifically, preferably less than more than 50% 180%, more preferably Less than more than 60% 110%.The first direction X of convex portion 40 length Lx and second direction Y length Ly be respectively preferably 1mm with Upper, more preferably more than 1.5mm, it is additionally preferred to for below 30mm, more preferably below 15mm, specifically, preferably 1mm with Upper below 30mm, more preferably more than 1.5mm below 15mm.

In addition, the X along a first direction at junction surface 3 (the first~the 3rd junction surface) length is preferably more than 0.1mm, spy Not You Xuanwei more than 0.5mm, preferably below 5mm, particularly preferably below 3mm, more specifically, preferably 0.1mm Below above 5mm, particularly preferably more than 0.5mm below 3mm.

Distance on first direction between adjacent junction surface row (the first~the 3rd junction surface row) be preferably more than 0.2mm, Particularly preferably more than 0.8mm, preferably below 10mm, particularly preferably below 5mm, more specifically, be preferably More than 0.2mm below 10mm, particularly preferably more than 0.8mm below 5mm.

In addition, the length along second direction Y at junction surface (the first~the 3rd junction surface) is preferably more than 0.1mm, spy Not You Xuanwei more than 0.5mm, preferably below 5mm, particularly preferably below 3mm, more specifically, preferably 0.1mm Below above 5mm, particularly preferably more than 0.5mm below 3mm.

Distance in second direction between adjacent junction surface row (the first~the 3rd junction surface row) be preferably more than 0.2mm, Particularly preferably more than 0.8mm, preferably below 10mm, particularly preferably below 5mm, more specifically, be preferably More than 0.2mm below 10mm, particularly preferably more than 0.8mm below 5mm.

From the viewpoint of it can more reliably obtain one or more above-mentioned effect, the sidepiece of composite sheet 10 Region S preferably has following constitute.

The height H of first convex portion 41₁Preferably more than 0.5mm, particularly preferably more than 1mm, preferably below 5mm, spy You Xuanwei not below 4mm.Such as height H of the first convex portion 41₁Preferably more than 0.5mm below 5mm, more preferably more than 1mm Below 4mm.The height H of second convex portion 42₂, with the height H with the first convex portion 41₁For equal extent or it is lower than it be condition, preferably For more than 0.3mm, particularly preferably more than 0.6mm, particularly preferably preferably below 4mm, below 3mm.Such as the second convex portion 42 height H₂Preferably more than 0.3mm below 4mm, more preferably more than 0.6mm below 3mm.The height H of 3rd convex portion 43₃, With the height H less than the second convex portion 42₂For condition, particularly preferably preferably more than 0.2mm, more than 0.4mm, preferably 3mm Below, it is particularly preferably below 2.5mm.Such as height H of the 3rd convex portion 43₃Preferably more than 0.2mm below 3mm, more preferably For more than 0.4mm below 2.5mm.The height H of central spud 46₄Preferably more than 0.3mm, particularly preferably more than 0.6mm, it is excellent Elect below 4mm, particularly preferably below 3mm as.The height H of such as central spud 46₄Preferably more than 0.3mm below 4mm, more Preferably more than 0.6mm below 3mm.

The height H of each convex portion 41,42,43,46₁、H₂, H3, H4 as shown in Figure 3 and Figure 4, be defined as the following table from second 2 Distance of the face to the upper surface of first 1.In addition, height H1, H2, H3, H4 proceed as described below measure.

(assay method of the height of convex portion)

Sample is cut off with sharp blade, it is observed and cuts off end face, the lower surface that measurement is second 2 and each convex portion top Upper surface between beeline.Using resulting value as each convex portion height.In the case where with the naked eye being difficult to determine, Microscope (KEYENCE CORPORATION VHX-1000) can be for example used to observe cut-out with 20~100 times of multiplying power The section of sample is measured.In addition, the feelings being for example measured in the diaper sample for the state for being filled in package body to compression Under condition, the sample of more than 1 day is removed and placed for positive dough sheet is peeled off from diaper, is measured in the same manner as aforesaid operations To numerical value.The height of each convex portion is determined under the conditions of uncharged.

The reasons why the reasons why due to the height of each convex portion 41,42,43,46 is set as described above is same, overlooks When the first convex portion 41 diameter be preferably more than 1mm, particularly preferably more than 2mm, preferably below 20mm, particularly preferably Below 10mm.The diameter of such as the first convex portion 41 is preferably more than 1mm below 20mm, more preferably more than 2mm below 10mm.The The diameter of two convex portions 42 is preferably more than 0.5mm, particularly preferably more than 1mm, particularly preferably preferably below 15mm, 5mm Below.The diameter of such as the second convex portion 42 is preferably more than 0.5mm below 15mm, more preferably more than 1mm below 5mm.3rd The diameter of convex portion 43 is preferably more than 0.2mm, particularly preferably more than 0.5mm, particularly preferably preferably below 10mm, 3mm Below.The diameter of such as the 3rd convex portion 43 is preferably more than 0.2mm below 10mm, more preferably more than 0.5mm below 3mm.In The diameter of centre convex portion 46 is preferably more than 0.5mm, particularly preferably more than 1mm, particularly preferably preferably below 15mm, 5mm Below.The diameter of such as central spud 46 is preferably more than 0.5mm below 15mm, more preferably more than 1mm below 5mm.

The reasons why the reasons why due to the diameter of each convex portion is set as described above, is same, the first junction surface during vertical view 31 X along a first direction length be preferably more than 0.5mm, particularly preferably more than 1mm, preferably below 10mm, especially Preferably below 5mm.Such as X along a first direction at the first junction surface 31 length is preferably more than 0.5mm below 10mm, more Preferably more than 1mm below 5mm.On the other hand, the length along second direction Y at the first junction surface 31 be preferably 0.1mm with Upper, particularly preferably more than 0.5mm, particularly preferably preferably below 5mm, below 3mm.Such as the first junction surface 31 along Second direction Y length is preferably more than 0.1mm below 5mm, more preferably more than 0.5mm below 3mm.

On the second junction surface 32, the length on its one side is preferably more than 0.1mm, is particularly preferably more than 0.5mm, preferably For below 5mm, particularly preferably below 3mm.The length on such as one side at the second junction surface 32 be preferably more than 0.1mm 5mm with Under, more preferably more than 0.5mm below 3mm.

Below, reference picture 15 is illustrated to the preferred manufacture method of the composite sheet 10 of above-mentioned composition to Figure 23.It is compound The manufacture method of piece 10 includes figuration process, in the figuration process, as shown in figure 15, periphery is formed as concaveconvex shape First roller 111 is rotated in the opposite directions to each other with the second roller 112, is formed and first wherein the periphery of the second roller 112 has The concaveconvex shape of the shape of the concaveconvex shape occlusion of roller, while by the bite of first 1 supply to two rollers 111,112, to the A piece of 1 carries out concavo-convex figuration.In addition, the manufacture method of composite sheet 10 also includes bonding process after figuration process, connect at this Close in process, make the state of first 1 circumference for remaining along the first roller 111 face since after movement occlusion portion, supply It is set to be overlapped with first 1 for second 2, between the convex portion of the first roller 111 and the first heating roller 113 and the second heating roller 114 Two sheet materials 1,2 are carried out under heating to hold pressure under the arm, its part is engaged.

As shown in figure 15, relative to the periphery of the first roller 111, the second roller 112, the first heating roller 113 and the second heating Roller 114 is oppositely disposed.Second roller 112, the first heating roller 113 and the second heating roller 114 are from the rotation direction R's of the first roller 111 Upstream side being arranged in order according to the second roller 112, the first heating roller 113 and the second heating roller 114 to downstream side.Periphery is formed The details of the first roller 111 and the second roller 112 for concaveconvex shape is described below.First heating roller 113 and the second heating Roller 114 is periphery respectively without concavo-convex smooth anvil roller.

First, first 1 is pulled out from the blank roller of first 1 is (not shown).Also, in addition from the blank roller of second 2 It is (not shown) to pull out second 2.Then as shown in figure 15, first 1 be drawn out is made to bite the first roller 111 and the second roller 112 Bite, carry out concavo-convex figuration to first 1.Now, the first roller 111 is attracted from its circumference towards roller inside, promoted Enter the concavo-convex figuration of first 1.It is described below on the attracting mechanism in the first roller 111.

Then, as shown in figure 15, first 1 is constantly attracted on the periphery of the first roller 111, keeps figuration shape State, makes second 2 coincidence in this condition, and the piece of the coincidence is held under the arm and is pressed in first heating smooth with periphery of the first roller 111 Between roller 113.Now, the first heating roller 113 is heated to regulation by both the first roller 111 and the first heating roller 113 or only Temperature.Thus, by the convex portion of the first roller 111, i.e. on the crest top land of the tooth of each gear (reference picture 16) described later First 1 engaged with second 2 by thermal welding, formed junction surface 31~33.

Then, the polymer of first 1 and second 2 engaged by thermal welding is made, in lasting attracting holding Moved in the state of on the periphery of one roller 111, the polymer is held under the arm and is pressed in second heating smooth with periphery of the first roller 111 Between roller 114.Now, the second heating roller 114 is heated to regulation by both the first roller 111 and the second heating roller 114 or only Temperature.Thus, on the convex portion positioned at the first roller 111, i.e. in the junction surface 31~33 on the tooth of each gear, first is constituted Piece 1 and the material of second 2, the melting of such as thermoplastic resin, can more firmly form junction surface 31~33.So, The composite sheet 10 of target can be continuously manufactured by.

When manufacturing above-mentioned composite sheet 10, as the first roller 111 and the second roller 112, following part is used：In axial length The central portion in direction has the middle section forming portion that above-mentioned middle section M is formed in composite sheet 10, is clipping the axial length The both sides of the central portion in direction are included in the lateral region forming portion that above-mentioned lateral region S, S is formed in composite sheet 10.

Figure 16 is represented the stereogram of the state of the middle section forming portion decomposition of the first roller 111 shown in Figure 15.Figure 17 Represent the stereogram of state for decomposing the lateral region forming portion of the first roller 111 shown in Figure 15., will on the first roller 111 First gear 121 and second gear 122 and more than 123 combinations of pad, they are arranged in shaft core 124 with same heart shaped, and It is gathered into roll.In the first roller 111, in middle section forming portion and lateral region forming portion, the tooth of first gear 121 and second The difference such as the tooth pitch of the tooth of wheel 122 and the configuration sequence of gear 121,122 and pad 123.In middle section forming portion and side The axle center opening of any part of portion region forming portion, 2 kinds of gears 121,122 and pad 123, rotary shaft insertion (not shown) Into the opening.2 kinds of gears 121,122 and pad 123 are respectively formed with notch part (not shown), and bolt is inserted in the notch part (not shown).Thereby, it is possible to prevent the idle running of 2 kinds of gears 121,122 and pad 123.

Pad 123 is formed as the shape with the bar (beam) 125 as multiple projections extended radially from center Shape.The identical length of each bar 125 in pad 123 is same.For convenience, will be false by the front end connection by each bar 125 When wanting that the diameter of a circle to be formed is defined as tip diameter, the tip diameter is less than the tooth of the first and second gears 121,122 Bottom circular diameter.

Each gear 121,122 is multiple to be formed with the way of surrounding the opening at the center for being used for inserting rotary shaft (not shown) Opening portion 126,127.The diameter of each opening portion 126,127 is identical, and equidistant position is respectively formed at from the center of gear. Adjacent opening portion 126,127 and the center angulation of gear is roughly equal.Opening portion in each gear 121,122 126th, 127 number is identical with the number of the bar 125 in above-mentioned pad 123.Then, each gear 121,122 and pad are being assembled During piece 123, in the way of being located at respectively between the adjacent bar 125 in pad 123 by each opening portion 126,127, each tooth is configured Wheel 121,122 and pad 123.That is, opening portion 126,127 is made to be located at the central part by adjacent 2 bars 125 and pad 123 In the region of the substantially V-shaped of composition.Wherein, in figure 16, in the region of above-mentioned substantially V-shaped include opening portion 126, 127 Zone Full, but it is also possible to instead of such case, the one of opening portion 126,127 is only included in the region of substantially V-shaped Part.The position of the substantially V-shaped is formed as the recess in the first roller 111 of concaveconvex shape equivalent to periphery.On the other hand, Tooth top and bottom of the tooth of the convex portion of concaveconvex shape equivalent to each gear 121,122.

When assembling each gear 121,122 and pad 123 as described above, the tooth of opening portion 126 and second of first gear 121 The opening portion 127 of wheel 122 is connected in the shaft core direction of the first roller 111, and first roller 111 has been internally formed on the shaft core direction The a plurality of attraction road (not shown) of extension.By the way that attraction road is connected with the suction device being arranged on outside roller 111, fill the attraction Work is put, thus, it is possible to internally attract from the recess formed in its periphery the first roller 111.

Figure 18 is represented the state of the periphery planar development in the middle section forming portion of the first roller 111.In the figure, arrow Direction shown in head U is the rotation direction of the first roller 111, and the direction shown in arrow V is the shaft core direction of the first roller 111.In addition, In the figure, the crest top land of each gear 121,122 of region representation of the rectangle represented by tiny point.As shown in the drawing, by One gear 121, pad 123, second gear 122, pad 123, first gear 121, pad 123, second gear 122 and pad 123 this 8 parts according to first gear 121, pad 123, second gear 122, pad 123, first gear 121, pad 123, Second gear 122 and the aggregation of the order of pad 123, are used as 1 cycle T₁, the middle section forming portion of the first roller 111 has should Cycle T₁Aggregated structure repeatedly.

In figure 18, the crest top land represented by tiny point is being formed for the junction surface 31~33 in the composite sheet 10 of target Predetermined position.Specifically, the tooth 121a of first gear 121 crest top land is the shape at the first junction surface 31 or the 3rd junction surface 33 Into predetermined position.In addition, the tooth 122a of second gear 122 crest top land is the predetermined position of formation at the second junction surface 32.Will be each Gear 121,122 and the configuration pattern at the appropriately configured junction surface 31~33 with shown in Fig. 4 for illustrating before acquisition of pad 123.

And in figure 18, the first roller recess area 140A is the predetermined position of formation of the convex portion 40 in the composite sheet 10 of target Put, the recess area 143A of the first roller the 3rd is the predetermined position of formation of the 3rd convex portion 43 in the composite sheet 10 of target.

Figure 19 is represented the periphery with the second roller 112 of the middle section forming portion of the first roller 111 formation occluding relation The state of planar development.In the figure, the direction shown in arrow U is the rotation direction of the second roller 112, and the direction shown in arrow V is The shaft core direction of second roller 112.

As shown in figure 19, the middle section forming portion of the second roller 112 is by including the 3rd gear 131 and the 4th gear 132 Aggregation is constituted.In the figure, the crest top land of the region representation gear 131,132 of the rectangle represented by thick point.Second roller 112 can not have attracting mechanism.It therefore, there is no need to form the first gear in the first roller 111 on the gear of the second roller 112 121 and second gear 122 on the opening portion 126,127 that is formed.

As shown in figure 19, by the 3rd gear 131, the 4th gear 132, the 3rd gear 131, the 4th gear 132 this 4 parts Assemble according to the order of the 3rd gear 131, the 4th gear 132, the 3rd gear 131, the 4th gear 132, be used as 1 cycle T₂, The middle section forming portion of second roller 112 has the cycle T₂Aggregated structure repeatedly.

In Figure 19, by the tooth 131a and the tooth in 2 adjacent the 4th gears 132 of its both sides of the 3rd gear 131 The second roller convex portion 140B of 132a formation.In the state of the first roller 111 is engaged with the second roller 112, the second roller convex portion 140B and One roller recess area 140A is fitted together to.

Figure 20 represents the state for the state plane expansion for being engaged the convex portion of the second roller 112 with the periphery of the first roller 111. In the figure, the crest top land of the gear 121,122 in the first roller of region representation 111 of the rectangle represented by tiny point.In addition, The crest top land of gear 131,132 in the second roller of region representation 112 of the rectangle represented by thick point.It can be seen that the Two roller convex portion 140B enter the first roller recess area 140A.On the other hand, that the first roller the 3rd is not entered is recessed for the convex portion of the second roller 112 Portion 143A.

Figure 21 is represented the state of the periphery planar development in the lateral region forming portion of the first roller 111.In the figure, It is the rotation direction of the first roller 111 by the arrow U directions represented, is the shaft core side of the first roller 111 by the arrow V directions represented To.In addition, in the figure, the crest top land of each gear 121,122 of region representation of the rectangle represented by tiny point.Such as the figure institute Show, by first gear 121, pad 123, first gear 121, second gear 122, pad 123, second gear 122, first gear 121st, this 12 parts of pad 123, first gear 121, second gear 122, pad 123 and second gear 122 are according to the first tooth Wheel 121, pad 123, first gear 121, second gear 122, pad 123, second gear 122, first gear 121, pad 123rd, the order aggregation of first gear 121, second gear 122, pad 123 and second gear 122, is used as 1 cycle T₁, first The lateral region forming portion of roller 111 has the cycle T₁Aggregated structure repeatedly.

In figure 21, the crest top land represented by tiny point is the junction surface of the lateral region S in the composite sheet 10 of target 31st, the predetermined position of 32 formation.Specifically, the tooth 121a of first gear 121 crest top land is the formation at the second junction surface 32 Predetermined position.In addition, the tooth 122a of second gear 122 crest top land is the predetermined position of formation at the first junction surface 31.Each gear 121st, 122 and the appropriately configured junction surface 31,32 with shown in Fig. 2 for illustrating before acquisition of pad 123 configuration pattern.

In addition, in figure 21, being fenced up by 4 tooth 121a of first gear 121 and 2 tooth 122a of second gear 122 The first roller foveal region 146A be the central spud 46 in the composite sheet 10 of target the predetermined position of formation.In addition, by 1 First the first recess area of roller that individual tooth 122a and the 2 tooth 121a configured separated by a distance along U directions on V directions fence up 141A is the predetermined position of formation of the first convex portion 41 in the lateral region S of the composite sheet 10 of target.Also, by 4 tooth 121a First the second recess area of the roller 142A fenced up is the formation of the second convex portion 42 in the lateral region S of the composite sheet 10 of target Predetermined position.In addition, the recess region of the first roller the 3rd between clipping 2 tooth 121a that pad 123 is configured separated by a distance on V directions Domain 143A is the predetermined position of formation of the 3rd convex portion 43 in the lateral region S of the composite sheet 10 of target.

Figure 22 is represented the periphery with the second roller 112 of the lateral region forming portion of the first roller 111 formation occluding relation The state of planar development.In the figure, it is the rotation direction of the second roller 112 by the arrow U directions represented, is represented by arrow V Direction is the shaft core direction of the second roller 112.In addition, in the figure, the region representation gear of the rectangle represented by thick point 124th, 122 crest top land.

As shown in figure 22, by the 3rd gear 124, pad 123, second gear 122, second gear 122, pad the 123, the 3rd This 10 parts of gear 124, pad 123, second gear 122, second gear 122, pad 123 are according to the 3rd gear 124, pad 123rd, second gear 122, second gear 122, pad 123, the 3rd gear 124, pad 123, second gear 122, second gear 122nd, the order aggregation of pad 123, is used as 1 cycle T₂, the lateral region forming portion of the second roller 112 is with the cycle T₂Repeatedly Aggregated structure.Constitute cycle T₂10 parts aggregate thickness and the first roller 111 in constitute cycle T₁12 parts Aggregate thickness it is identical.

In fig. 22, the second roller central spud 146B and second the second convex portion of roller are formed by the tooth 124a of the 3rd gear 124 142B.Second roller central spud 146B is alternately arranged with second roller the second convex portion 142B along U directions.In addition, by second gear 122 second the first convex portion of roller 141B of tooth 122a formation.In the state of the first roller 111 is engaged with the second roller 112, the second roller One convex portion 141B is chimeric with first the first recess area of roller 141A.In addition, second roller the second convex portion 142B and the first roller second are recessed Portion region 142A is fitted together to.And the second roller central spud 146B is chimeric with the first roller foveal region 146A.

Figure 23 represents the shape for being engaged the convex portion of the second roller 112 with the periphery of the lateral region forming portion of the first roller 111 The state of state plane expansion.Gear 121 in the first roller of region representation 111 of the rectangle in the figure, represented by tiny point, 122 crest top land.In addition, the tooth top of the gear 124,122 in the second roller of region representation 112 of the rectangle represented by thick point Face.It can be seen that second the first convex portion of roller 41B enters first the first recess area of roller 141A.Second the second convex portion of roller 142B Into first the second recess area of roller 142A.Also, the second roller central spud 146B enters the first roller foveal region 146A. On the other hand, the convex portion of the second roller 112 does not enter the recess 143A of the first roller the 3rd.

Then, the first roller 111 and the second roller 112, in middle section forming portion, the second roller convex portion 140B enters the first roller Recess area 140A, thus first 1 (not shown) be pressed into the first roller 111, can carry out and the corresponding solid in convex portion 40 Figuration.

In addition, the first roller 111 and the second roller 112, in lateral region forming portion, second the first convex portion of roller 141B enters One roller the first recess area 141A, thus first 1 (not shown) be pressed into the first roller 111, can carry out and the first convex portion 41 corresponding three-dimensional figurations.In addition, entering the first the second recess area of roller 142A, first by second the second convex portion of roller 142B 1 (not shown) is pressed into the first roller 111, can be carried out and the corresponding three-dimensional figuration in the second convex portion 42.In addition, passing through the second roller Central spud 146B enters the first roller foveal region 146A, and first 1 (not shown) is pressed into the first roller 111, can Carry out three-dimensional figuration corresponding with central spud 46.Wherein, in the recess area 143A of the first roller the 3rd, by from the 3rd recess Region 143A is to the attraction of the inside of the first roller 111, and first 1 (not shown) is attracted in the 3rd recess area 143A, Three-dimensional figuration can be carried out.

Afterwards, fitted second 2 on first 1 after carrying out three-dimensional figuration, so as to obtain the composite sheet 10 of target.

The obtained composite sheet 10 of operation is imported into the production line of diaper 100 as described above, by known method, is used as one The positive dough sheet 12 of secondary property diaper 100.

Below, the disposable diaper of second embodiment is illustrated.In the disposable diaper of second embodiment, structure The middle section M of the composite sheet 10 used into the composite sheet 10A of positive dough sheet middle section M composition and first embodiment Composition it is identical, and the composition of lateral region S, S is different.

For second embodiment, illustrated mainly for the difference from above-mentioned first embodiment, identical point Omit the description.On the point being not particularly illustrated, the explanation in first embodiment can be suitably applied.

On the composite sheet 10A used in this second embodiment as positive dough sheet, first 1 of stacking and second are used as Junction surface formed by the engagement of 2 parts, as shown in figure 27, forms the length L3 of X along a first direction than along second direction Y's The lengthwise junction surface 31 of the elongate shape of length L1 length.Lengthwise junction surface 31 is all formed as rectangle, each side and first of the rectangle Direction X or second direction Y are consistent.In composite sheet 10A, all junction surfaces are all lengthwise junction surfaces 31.In addition, in composite sheet On 10A, as shown in figure 26, lengthwise junction surface 31 is along second direction Y with the second party of 2 kinds of interval L2, L4 rule configurations It is formed with to junction surface row R in a first direction X multiple rows of.Further specifically, in second direction junction surface row R, it is used as the , there is the first interval L2 at the interval between lengthwise junction surface 31 on two direction Y and second interval wider than the first interval L2 Arrange multiple lengthwise junction surfaces 31 in R alternately there are this 2 kinds of intervals on second direction Y in L4, second direction junction surface Mode, is interrupted configuration on second direction Y.

Constitute the length and allocation position of each second direction junction surface row R lengthwise junction surface 31 in a first direction on X Unanimously, it is formed with one fixed width W gap on X between adjacent second direction junction surface row R in a first direction.In addition, Configurations of the plurality of rows of second direction junction surface row R every the lengthwise junction surface 31 on a row, second direction Y is formed with one direction X The allocation position at the lengthwise junction surface 31 on position consistency, the adjacent second direction junction surface mutual second direction Y of row R is each other It is different.Specifically, as shown in figure 27, the configuration at the lengthwise junction surface 31 in R, second direction is arranged as second direction junction surface The position junction surface of second direction first row R1 different from each other replaces with the junction surface of second direction second row R2 in a first direction X Formed, on the allocation position at the lengthwise junction surface 31 on second direction Y, the junction surface of second direction first row R1 and second direction R2 is arranged at second junction surface, is located in any one junction surface row R1 (R2) with the first interval L2 adjacent pair lengthwises junction surface 31 With between lengthwise junction surface 31 adjacent the second interval L4 in another junction surface row R2 (R1).

Then, as shown in figure 27, by arranging being total to for 2 lengthwise junction surfaces 31,31 adjacent in R including second direction junction surface Convex portion 41 is formed with the region that 6 junction surfaces 31 of meter fence up.Amount to 6 junction surfaces in composite sheet 10A lateral region S 31 be all lengthwise junction surface 31, specifically, as shown in figure 27, and R1 2 lengthwises are arranged by constituting the junction surface of second direction first Junction surface 31 and constitute upper 2 second directions second adjacent with the junction surface of second direction first row R1 of X in a first direction The 6 lengthwise junction surfaces 31 that amount at junction surface row R2, R2 4 lengthwise junction surfaces 31 fence up.In addition, composite sheet 10A's In lateral region S, each second direction junction surface row R in, by second direction Y with the first interval L2 close to configuration one The lengthwise junction surface constituted to lengthwise junction surface 31 is to 30, with the first interval L2 more than 2 times of interval L4 on second direction Y Interruption configuration, the lengthwise junction surface adjacent on second direction Y of convex portion 41 between 30,30 to forming.It is vertical in present embodiment Long junction surface is constituted to 30 in arranging R at second direction junction surface with most narrow interval L2 adjacent pair lengthwises junction surface 31.

As illustrated in figs. 25 and 26, in composite sheet 10A lateral region S, convex portion 41 is with the direction in composite sheet 10A face Scattered state is formed.Convex portion 41 is in zigzag configuration.Further specifically, convex portion 41 is as shown in figure 26 with including first party The mode for arranging 4X, second direction convex portion row 4Y and third direction convex portion row 4XY to convex portion is configured, wherein, first direction convex portion row By multiple convex portions 41, X is arranged 4X along a first direction at certain intervals, and 4Y is arranged by multiple convex portions 41 with certain in second direction convex portion Interval is arranged along second direction Y, and 4XY is arranged by multiple convex portions 41 at certain intervals along relative to first party in third direction convex portion To X and the inclined third direction arrangement of second direction Y both directions.In addition, second direction convex portion row adjacent on first direction X The allocation position of the mutual convex portions 41 of 4Y staggers half pitch on second direction Y, and adjacent first direction is convex on second direction Y The allocation position of portion row 4X mutual convex portions 41 staggers on X half pitch in a first direction.Half pitch mentioned here be The adjacent mutual distance between centers in convex portion 41 in first direction X and second direction Y all directions.

Shown in the lateral region S for being formed at composite sheet 10A each convex portion 41 such as Figure 26, Figure 28 (a) and Figure 28 (b), bowing Apparent time is circular or ellipse, and overleaf side has hollow bulb 41V.Convex portion 41 is in the area fenced up by 6 lengthwise junction surfaces 31 The central portion formation top in domain.

In addition, in composite sheet 10A lateral region S, as shown in figure 27, with narrow interval in the row R of second direction convex portion Between lengthwise junction surface 31,31 adjacent L2, the second convex portion 42 that height is less than convex portion 41 is formed with, in a first direction phase on X Between adjacent second direction convex portion row R nearest junction surface 31, the 3rd convex portion 43 that height is less than convex portion 41 is formed with.Convex portion Between 41 and other adjacent convex portions 41, by by surround 6 junction surfaces of convex portion 41 and between these junction surfaces the The annular recessed portion that two convex portions 42 and convex portion 43 are constituted is separated.Although the second convex portion 42 and the 3rd convex portion 43 are " convex on word Portion ", but compared with convex portion 41, the height of the second convex portion 42 and the 3rd convex portion 43 is relatively low, thus from these convex portions 41 See it is relative recess.

Figure 29 is to correspond to Figure 23 for manufacture composite sheet 10A the first roller and the lateral region forming portion of the second roller Figure.For manufacturing in composite sheet 10A the first roller and the lateral region forming portion of the second roller, entered by the second roller convex portion 141B Row the first roller recess area 141A, first 1 (not shown) is pressed into the first roller 111, can carried out corresponding with convex portion 41 Three-dimensional figuration.On the other hand, in first roller the second recess area 142A and recess area 143A of the first roller the 3rd, by from Two recess area 142A and the 3rd recess area 143A are attracted to the attraction inside the first roller 111, first 1 (not shown) In the second recess area 142A and the 3rd recess area 143A, it can carry out corresponding with the second convex portion 42 and the 3rd convex portion 43 Three-dimensional figuration.Afterwards, by being fitted second 2 on first 1 after carrying out three-dimensional figuration, the composite sheet of target is resulted in 10A。

In composite sheet 10A, engaged also by middle section M and a pair of lateral regions S, S with different pattern formation Portion so that the area ratio at the junction surface 31 in lateral region S is higher than the area ratio at the junction surface 3 in middle section M.

Therefore, using the diaper for the second embodiment that composite sheet 10A is used as to positive dough sheet, also result in first in fact Apply the same effect of the diaper 100 of mode.

For composite sheet 10A, in the area ratio Es (%) and middle section M at the junction surface in lateral region S Area ratio Em (%) difference (Es-Em, percentage point) at junction surface, the area ratio Em at junction surface in middle section M, The area ratio Es at the junction surface in lateral region S, lateral region S and middle section M bending stiffness, it is used as lengthwise junction surface Lateral region S junction surface 31 and middle section M in the length ratio in a first direction on X of junction surface 3 etc., it is preferred Scope is identical with the composite sheet 10 of first embodiment.

Below, the disposable diaper of the 3rd embodiment is illustrated.Structure in the disposable diaper of 3rd embodiment It is also shape and configuration pattern and the lateral zones of convex portion in middle section M as shown in figure 30 into the composite sheet 10B of positive dough sheet The shape of convex portion in domain S, S is different with configuration pattern.

For the 3rd embodiment, the main pair of difference from above-mentioned first embodiment is illustrated, identical point Omit the description.For the point being not particularly illustrated, the explanation in first embodiment can be suitably applied.

As shown in figure 31, in composite sheet 10B middle section M, the middle section M with above-mentioned composite sheet 10 is same, layer Folded first 1 and the engagement of second 2 part, form multiple junction surfaces 34, in addition this first 1 beyond the junction surface 34 Position forms multiple convex portion 40C that the skin side towards wearer is protruded to prominent away from the direction of second 2.In composite sheet 10B middle section M, junction surface 34 is formed with the configuration pattern of clathrate, wherein, the configuration pattern of the clathrate is connect by multiple X is configured to multiple grid formation the first junction surface row of a row and multiple junction surfaces with a constant pitch along a first direction in conjunction portion 34 34 are constituted along second direction Y multiple grid formation the second junction surface rows for being configured to a row with a constant pitch, by 8 engagements The position equivalent to mesh of the grid around surrounded is respectively formed with convex portion of the plan view shape for substantially crosswise by portion 34 40C.Convex portion 40C and the convex portion 40 of above-mentioned composite sheet 10 are same, have hollow bulb by rear side and form convex portion 40C top The high convex portion 41 ' in portion and the morphogenetic 4 low convex portions of shape around the high convex portion 41 ' to link with the high convex portion 41 ' 42 ' are constituted.Composite sheet 10B shown in Figure 30, such as in the positive dough sheet as above-mentioned disposable diaper 100, so that first direction X In the case of the mode use consistent with article length direction Xa, 4 low convex portions 42 ' around high convex portion 41 ' to relative to The article length direction Xa and item width direction Ya inclined direction of all directions is extended.

As shown in figure 32, in composite sheet 10B lateral region S, engaged as first 1 of stacking and second 2 part Formed by junction surface, be formed with X in a first direction the first junction surface 31 and second of the lengthwise oblong-shaped of long shape The second of the direction Y length square shape shorter than the first junction surface with identical but first direction X the length in the first junction surface 31 Junction surface 32.In composite sheet 10B lateral region S, as first 2 to away from the direction of second 2 it is prominent formed by it is convex Portion, the continuous convex portion 40 in center continuously extended on second direction Y in a first direction on X it is spaced apart be formed with it is multiple. Central continuous convex portion 40 respectively by the first convex portion 41 for being alternately arranged on second direction Y and the second convex portion 42 it is connected to each other and Formed.Constitute the first convex portion 41 and the second convex portion 42 of the continuous convex portion 40 in center has hollow bulb, first in respective rear side The hollow bulb at the back side of the hollow bulb at the back side of convex portion 41 and the second convex portion 42 is continuous, the rear side shape in central continuous convex portion 40 Into there is the continuous hollow portion that continuously extends along second direction Y.In composite sheet 10B lateral region S, extend in second direction Y, In a second direction the continuous non-embossed areas N without junction surface with extension in a second direction, junction surface with rule The embossed area E of pattern formation is alternatively formed on X in a first direction.In embossed area E, by 2 the first junction surfaces 31 and 4 In the state of individual second junction surface 32 fences up, embossed area interior protuberance 46 ' is formed.

In composite sheet 10B, engaged also by middle section M from a pair of lateral regions S, S with different pattern formation Portion so that the area ratio at the junction surface 31,32 in lateral region S is higher than the area ratio at the junction surface 34 in middle section M.

Therefore, by using diapers of the composite sheet 10B as the 3rd embodiment of positive dough sheet, also result in and first The same effect of the diaper 100 of embodiment.

For composite sheet 10B and composite sheet 10C described later, the area ratio Es on the junction surface in lateral region S Connecing in the area ratio Em (%) at (%) and the junction surface in middle section M difference (Es-Em, percentage point), middle section M The area ratio Em in conjunction portion, the area ratio Es at the junction surface in lateral region S, lateral region S and middle section M bending it is firm Degree, as the junction surface 3 in the lateral region S at lengthwise junction surface junction surface 31 and middle section M first direction X length The ratio between etc., its preferred scope is identical with the composite sheet 10 of first embodiment.

Below, the disposable diaper of the 4th embodiment is illustrated.In the disposable diaper of the 4th embodiment In the composite sheet 10C for constituting positive dough sheet, as shown in figure 33, it is also the shape of convex portion in middle section M and configures pattern and side The shape of convex portion in portion region S, S is different with configuration pattern.

On the 4th embodiment, the main pair of difference from above-mentioned first embodiment is illustrated, for identical Point is omitted the description.On the point being not particularly illustrated, the explanation in first embodiment can be suitably applied.

Figure 34 represents that the amplification near the middle section M and lateral region S of the composite sheet 10C shown in Figure 33 boundary portion is bowed View.Figure 35 (a)~Figure 35 (c) is denoted as Figure 34 of middle section M composite sheet 10C sectional view Va-Va lines section Figure, Vb-Vb lines sectional view and Vc-Vc line sectional views.

As shown in Figure 33~Figure 35, first 1 and second 2 of stacking is formed with composite sheet 10C middle section M Tap the multiple junction surfaces 331,332 closed.In addition, first 1 position beyond these junction surfaces is to away from second 2 Direction protrude, thus, as the convex portion protruded towards the skin side of wearer, be formed with center continuously convex portion 40M, the 3rd convex The convex portion 344 of portion 343 and the 4th.

Central continuous convex portion 40M extends on second direction Y respectively, in a first direction on X interval be formed with it is multiple. Interval is formed as scatterplot shape on X and second direction Y in a first direction for 3rd convex portion 343.4th convex portion 344 is formed at center Continuously between convex portion 40M and the 3rd convex portion 343.

As shown in Figure 34 and Figure 35 (a), the continuous convex portion 40M in each center by be alternately arranged on second direction Y the One convex portion 341 and the second convex portion 342 are connected to each other and formed.The first convex portion 341 and second for constituting the continuous convex portion 40M in center is convex Portion 342, has hollow bulb in respective rear side.The central continuous convex portion 40M preferably hollow bulbs at the back side of the first convex portion 341 with The hollow bulb at the back side of the second convex portion 342 is continuous, continuous along second direction Y in central continuous convex portion 40M rear side formation The continuous hollow portion 40V of extension.3rd convex portion 343 in its rear side it is also preferred that be formed with hollow bulb 43V.

It is ellipse to constitute continuous convex portion 40M the first convex portion 341 in center and the plan view shape of the second convex portion 342, but The oval major axis of first convex portion 341 is consistent with first direction X, oval major axis and the second direction Y mono- of the second convex portion 342 Cause.In addition, the section of the first convex portion 341, the second convex portion 342 and the 3rd convex portion 343 respectively preferably along first direction X is that have The shape at top, is more preferably respectively provided with the shape at top in a first direction in X and second direction Y any section.4th is convex The upper surface general planar in portion 344, but protruded than the respective upper surface in 2 the second junction surfaces 332 for clipping the 4th convex portion 344.

In composite sheet 10C middle section M, it is formed with X in a first direction and at predetermined intervals, preferably matches somebody with somebody at certain intervals The first junction surface 331 put and configured with interval on the interval narrower than the first junction surface 331 in a first direction X second Junction surface 332.First junction surface 331 and the second junction surface 332 be formed with second direction Y it is multiple rows of, as shown in figure 34, multiple Close piece 10C middle section M, the first junction surface 331 along a first direction the first junction surface of longitudinal direction row R3x of X arrangements and Laterally the first junction surface row R3y that first junction surface 331 is arranged along second direction Y be respectively formed with it is multiple rows of, in addition the Two junction surfaces 332 the second junction surface of longitudinal direction row R4x that X is arranged along a first direction and the second junction surface 332 along second Laterally the second junction surface row R4y of direction Y arrangements is respectively formed with multiple rows of.

In composite sheet 10C middle section M, embossed area E and non-embossed areas N are alternatively formed on X in a first direction.Should Laterally the first junction surface row R3y is inserted in embossed area E between 2 adjacent rows laterally the second junction surface row R4y.Non-embossed area Domain N is the region between adjacent laterally the second junction surface row R4y, is not include the region at junction surface 331,332.Each Central continuous convex portion 40M is with the first direction central part that extends on second direction Y in non-embossed areas N first direction The mode in centre portion is formed.In the first junction surface 331 and the second junction surface 332, first 1 and second 2 is processed by being embossed Integratedly pressurizeed, other any portion of density of the density ratio of two panels are all high, preferably pass through the composition tree of one or two piece The melting of fat and solidification afterwards, make to carry out thermal welding between two panels.

Central continuous convex portion 40M be on second direction Y continuously extension and width on second direction Y regularly The part narrowed.Specifically, as shown in figure 34, non-embossed areas N and a pair relative of first junction surfaces 331 are being clipped each other Between, the continuous convex portion 40M in center the first convex portion 341 is formed, by clipping non-embossed areas N and relative two couple second engages What portion 332 was constituted amounts to the region that four the second junction surfaces 332 are fenced up, and forms the continuous convex portion 40M in center the second convex portion 42, on the length on the direction of X along a first direction, length L41s of the length L42 than the first convex portion 341 of the second convex portion 342 It is short.The central continuous convex portion 40M part being made up of the second convex portion 342 turns into compared with the part being made up of the first convex portion 341 The part that width (first direction X length) narrows.

In the middle section M of the composite sheet 10C shown in Figure 34, adjacent the first junction surface of longitudinal direction on second direction Y Arrange between R3x, there is the second junction surface of 2 rows longitudinal direction row R4x, but it is also possible to the first junction surface of longitudinal direction on second direction Y Row R3x is alternately arranged line upon line with the second junction surface of longitudinal direction row R4x.Including such situation, on preferably first direction X The first junction surface 331 length it is identical or longer than its with the length at the second junction surface 332 on first direction X, it is additionally preferred to The length at the first junction surface 331 on second direction Y is identical with the length at the second junction surface 332 on second direction Y or than it It is long.

As shown in Figure 33, Figure 34 and Figure 36, in composite sheet 10C lateral region S, first 1 and of stacking is formed with Multiple junction surfaces 231,232 of two 2 parts engagements.In addition, first 1 position beyond these junction surfaces is to away from second The direction of piece 2 is protruded, thus, as the convex portion protruded towards the skin side of wearer, is formed with the continuous convex portion 40S of sidepiece, the Three convex portions 243, the 4th convex portion 244 and the 5th convex portion 245.The continuous convex portion 40S of sidepiece extends on second direction Y respectively, the Interval is formed with multiple on one direction X.Interval is formed as on X and second direction Y in a first direction for 3rd convex portion 243 Scatterplot shape.4th convex portion 244 is formed between the continuous convex portion 40S of sidepiece and the 3rd convex portion 243, and the 5th convex portion 245 is formed at On second direction Y between the first adjacent junction surface 231.

As shown in Figure 34 and Figure 36 (a), the continuous convex portion 40S of each sidepiece by be alternately arranged on second direction Y the One convex portion 241 and the second convex portion 242 are connected to each other and formed.The first convex portion 241 and second for constituting the continuous convex portion 40S of sidepiece is convex Portion 242 has hollow bulb in respective rear side.The continuous convex portion 40S of the sidepiece preferably hollow bulbs at the back side of the first convex portion 241 and The hollow bulb at the back side of the second convex portion 242 is continuous, continuous along second direction Y in the continuous convex portion 40S of sidepiece rear side formation The continuous hollow portion 40V of extension.3rd convex portion 243 is it is also preferred that in its rear side formation hollow bulb 43V.

It is ellipse to constitute the continuous convex portion 40S of sidepiece the first convex portion 241 and the plan view shape of the second convex portion 242, the The oval major axis of one convex portion 241 and the second convex portion 242 is consistent with first direction X.The first~the of the continuous convex portion 40S of sidepiece The respective plan view shape in three convex portion 241~243 can be circle.In addition, the first convex portion 241, the second convex portion 242 and the 3rd convex portion 243 sections for being respectively preferably X along a first direction have the shape at top, more preferably in a first direction X and second direction Y On arbitrary section all have top shape.The upper surface of 4th convex portion 244 connects than clipping 2 second of the 4th convex portion 244 The respective upper surface in conjunction portion 232 is protruded, 2 first junction surfaces of the upper surface than clipping the 5th convex portion 245 of the 5th convex portion 245 231 respective upper surfaces are protruded.

It is also formed with X in a first direction that at predetermined intervals, preferably certain intervals are matched somebody with somebody in composite sheet 10C lateral region S The first junction surface 231 for putting and to match somebody with somebody at spaced intervals on the interval narrower than the interval at the first junction surface 231 in a first direction X The second junction surface 232 put.In addition, as shown in figure 34, in composite sheet 10C lateral region S, the first junction surface 231 is along the The horizontal stroke that the first junction surface of longitudinal direction row R5x of one direction X arrangements and the first junction surface 231 are arranged along second direction Y To the first junction surface row R65y be respectively formed with it is multiple rows of, in addition the second junction surface 232 along a first direction X arrangement longitudinal direction Arrange laterally the second junction surface row's R6y difference that R6x and the second junction surface 332 are arranged along second direction Y in the second junction surface It is formed with multiple rows of.

In composite sheet 10C lateral region S, sidepiece embossed area SE and sidepiece non-embossed areas SN also X in a first direction On be alternatively formed.Wherein, in sidepiece embossed area SE between adjacent 2 rows laterally the second junction surface row R6y inserted with transverse direction Arrange R5y in the first junction surface.Sidepiece non-embossed areas SN is the region between adjacent laterally the second junction surface row R6y, is Do not include the region at junction surface 231,232.The continuous convex portion 40S of each sidepiece is with the first direction that extends on second direction Y The mode that centre portion is located at sidepiece non-embossed areas SN first direction central portion is formed.In the first junction surface 231 and the second engagement In portion 232, first 1 and second 2 is integratedly pressurizeed by being embossed processing, and other are any portion of close for the density ratio of two panels Degree is all high, preferably by the melting and solidification afterwards of the composition resin of one or two piece, makes to carry out thermal welding between two panels.

Same with central continuous convex portion 40M, the continuous convex portion 40S of sidepiece as shown in figure 34, is also formed on second direction Y and connected Extend continuously and part that width regularly narrows on second direction Y.It is preferred that the first junction surface 231 on first direction X Length it is identical or longer than its with the length at the second junction surface 232 on first direction X, additionally, it is preferred that on second direction Y The length at one junction surface 231 is identical or longer than its with the length at the second junction surface 232 on second direction Y.

In composite sheet 10C middle section M, the height of the 4th convex portion 344 is than the first convex portion 341, the and of the second convex portion 342 The height of 3rd convex portion 343 any is all low.

In addition, the height of the first convex portion 341 is set into H1, the height of the second convex portion 342 to be set to H2, by the 3rd convex portion When 343 height is set to H3, the height of the 4th convex portion 344 is set into H4, these highly meet the relation of following (1)~(3).

(1)H1≥H3

(2)H3≥H2

(3) H2 ＞ H4

In composite sheet 10C lateral region S, the first convex portion of height ratio 241 of the 4th convex portion 244 and the 5th convex portion 45, The height of any of the second convex portion 242 and the 3rd convex portion 243 is all low.In addition, by the height of the first convex portion 241 be set to H1, The height of second convex portion 242 is set to H2, the height of the 3rd convex portion 243 is set to H3, the height of the 4th convex portion 244 is set to H4, the height of the 5th convex portion 245 is set to H5, these highly meet the relation of following (1)~(3).

(1)H1≥H3

(2)H3≥H2

(3) H2 ＞ H4 and H2 ＞ H5

In composite sheet 10C, engaged also by middle section M and a pair of lateral regions S, S with different pattern formation Portion so that the area ratio at the junction surface 231,232 in lateral region S is higher than the face at the junction surface 331,332 in middle section M Product ratio.

Therefore, by the use of diapers of the composite sheet 10B as the 3rd embodiment of positive dough sheet is used, result in first in fact Apply the same effect of the diaper 100 of mode.

In addition, in composite sheet 10C, as shown in figs. 33 and 34, the of the maximum convex portion of height in middle section M is used as One convex portion 341 and as the maximum convex portion of height in lateral region S the first convex portion 241 respectively in composite sheet 10C along thing Discontinuously formed on the first direction X of product length direction, the first convex portion 341 and the first convex portion 241 shape on above-mentioned first direction X Into in position different from each other.

Further specifically, in composite sheet 10C, on the X in a first direction of middle section M the first convex portion 341 On the X in a first direction of pitch (distance is identical between center line Cm, reference picture 33) and lateral region S the first convex portion 241 Pitch (distance is identical between center line Cs, reference picture 33) is identical, middle section M the first convex portion 341 and the of lateral region S One convex portion 241 is alternately formed on X in a first direction.Therefore, whole middle section M the first convex portion 341 X in a first direction Position and lateral region S the first convex portion 241 X in a first direction position it is different.It is preferred that height maximum in middle section M In convex portion (the first convex portion 341) and lateral region S the maximum convex portion (the first convex portion 241) of height respectively in a first direction on X with One constant pitch (distance between centers) formation.

In middle section M and lateral region S, by making the position of the maximum convex portion of height different, highly maximum is convex Portion does not overlap one another, thus the boundary portion of the middle section M in composite sheet 10C and lateral region S convex portion formation pattern Near, include the composite sheet 10C easy warpage of absorbent commodity.Thus, absorbent commodity is easily successfully deformed into ship shape Shape, leak resistance etc. is improved.

From the viewpoint of such effect is more reliably obtained, height maximum convex portion and side in preferably middle section M Upper 1 of X is alternately configured the maximum convex portion of height in a first direction in the S of portion region, but it is also possible to in middle section M the Be inserted on one direction between the maximum convex portion of adjacent to each other 2 height lateral region S in a first direction adjacent 2 it is multiple The pattern of the maximum convex portion of height or inserted between lateral region the S in a first direction maximum convex portion of adjacent 2 height In middle section M maximum patterns of convex portion of adjacent 2 height etc. in a first direction, in two region M, S formation height most Big convex portion.Furthermore it is also possible to implement to make in crotch bottom C the position on the first direction X of highly maximum convex portion in central area Domain M is different with lateral region S, on the other hand in veutro portion A and drosal part C, either or both makes the of the maximum convex portion of height Position on one direction X is in the middle section M deformations waited consistent with lateral region S.

In the composite sheet 10B of the 3rd above-mentioned embodiment, in middle section M and lateral region S, height maximum The position of convex portion is also different.

In addition, in composite sheet 10C, prolonging respectively in second direction Y in middle section M, the continuous convex portion 40M in above-mentioned center Stretch and be formed with a first direction on X multiple rows of；In lateral region S, the continuous convex portion 40S of above-mentioned sidepiece is respectively in second direction Y Upper extension and it is formed with a first direction multiple rows of on X, the continuous convex portion 40M and continuous convex portion 40S of sidepiece in center is in a first direction on X It is alternately arranged.

Thus, the continuous convex portion 40M in middle section M center is not overlapping with the continuous convex portion 40S of lateral region S sidepiece, because And the convex portion of the middle section M and lateral region S in composite sheet 10C are formed near the boundary portion of pattern, including composite sheet 10C Absorbent commodity warpage, the sidepiece of absorber etc. is easily erected.Thereby, it is possible to be formed in more stable boat-like shape, wearing Leak resistance etc. is further improved.

In addition, composite sheet 10C is as shown in figure 33, in middle section M and lateral region S boundary portion, with the presence of center Both the region M continuous convex portion 40M and lateral region S in center continuous convex portion 40S of sidepiece borderline region K, in borderline region K, the center continuous convex portion 40M and continuous convex portion 40S of the sidepiece are alternately arranged on X in a first direction.More specifically, on side Battery limit (BL) domain K, the continuous convex portion 40S of sidepiece enter between the continuous convex portion 40M in center adjacent on X in a first direction, and center is even Continuous convex portion 40M enters between the continuous convex portion 40S of sidepiece adjacent on X in a first direction.If also, will be present in frontier district The first direction X of domain K, the continuous convex portion 40M in center second direction Y one end and the continuous convex portion 40S of sidepiece second direction Y One end be connected to each other, sawtooth (zigzag) shape will be formed.

Due to including the continuous convex portion 40M in center and the continuous convex portion of sidepiece in middle section M and lateral region S boundary portion The borderline region K of 40S overlap-extension PCRs on second direction Y, composite sheet 10C are easily in borderline region K warpages, even and if on side Battery limit (BL) domain K is also able to maintain that convex form, it is thus possible to suppresses liquid and is spread along broken curve, and the leak resistance in wearing is further Improve.

, can in addition to the first roller and the second roller combined using crest top land as shown in figure 37 on composite sheet 10C Manufactured in the same manner as the manufacture method of above-mentioned composite sheet 10.In Figure 37, the crest top land represented by tiny point is target The predetermined position of formation at the junction surface of middle section or lateral region in composite sheet 10C.

As the disposable diaper of an embodiment of the invention, disposable diaper 100A preferably as shown in figure 38 that Sample, the elastomeric element configuring area BM for including being configured with a plurality of elastomeric element 19 in drosal part B at least width central portion.

The pull stap 17 in disposable diaper 100A shown in Figure 38 engaged by band base material 17a and with band base material 17a and The sunny side part for forming engaging portion 17c mechanical surface fastener is constituted, and is taken region 18 and is passed through engagement mechanical face on overleaf piece 13 The sunny side part of hasp is formed rich in the non-woven fabrics of zygosity.The part with base material 17a of pull stap 17 forms to press from both sides The fixed part 17b that overleaf state between piece 13 and the piece 15 of three-dimensional gauffer formation is fixed.Pull stap 17 in left and right, Between 17, make the elastomeric element 19 of a plurality of wire that diaper 100A shrinks on width Ya or banding in diaper 100A length Direction Xa intervals are spent provided with a plurality of.The a plurality of elastomeric element 19 is used as the non-woven fabrics for being fixed on 2 non-woven fabrics or doubling Between composition flexure strip 19s and configure, preferred each elastic portion included by flexure strip 19s end or flexure strip 19s The end of part 19 is overlapping with fixed part 17b.Additionally, it is preferred that elastomeric element 19 is matched somebody with somebody at certain intervals on the Xa of article length direction Put.In addition, the engaging portion 17c of pull stap 17 can be adhesive portion etc. formed by coating adhesive on band base material 17a.As Band base material 17a, can use the various known raw material such as non-woven fabrics.

The positive dough sheet 12 of disposable diaper 100A shown in Figure 38 is made up of composite sheet 10X, and composite sheet 10X is described above Composite sheet 10C like that, multiple extension and X in a first direction on second direction Y respectively is formed with the middle section M of composite sheet The continuous convex portion 40M in center of upper interval.

Composite sheet 10X is above-mentioned continuously to extend on second direction Y preferably in elastomeric element configuring area BM Central continuous convex portion 40M be formed extended at both sides respectively in second direction Y it is a plurality of, more preferably as shown in figure 39, by central convex row Portion 40M width is set to P1, the interval of elastomeric element 19 is set to P2, by between central continuous convex portion 40M central portion Interval when being set to P3, meet P1 ＜ P2 ＜ P3 relation.Central continuous convex portion 40M width P1 is X along a first direction The width in direction, as shown in figure 39, with being spaced between relatively narrow junction surface 332 and a pair of engaging portion between a pair of engaging portion The relatively wide junction surface 331 in interval as clip center continuously convex portion 40M and in the case of relative a pair of engaging portion, by one Width P1 of the distance between the interval most narrow junction surface 332 junction surface as central continuous convex portion 40M.Separately Outside, preferred resilient members configuring area BM is more wider in the direction of the width than the middle section M of composite sheet.In addition, Figure 39 represents structure Composite sheet into positive dough sheet 12 is composite sheet 10C situation, but is constituted by other of middle section M with the continuous convex portion in center Composite sheet be used for positive dough sheet 12 situation be also same.

Multiple elastomeric elements 19 make diaper shrink in the direction of the width to improve drosal part B fit, but with configuration Composite sheet 10X that the elastomeric element configuring area BM for having a plurality of elastomeric element 19 overlaps, constituting positive dough sheet 12 center When continuous convex portion 40M and elastomeric element 19 meet above-mentioned relation, by elastomeric element 19, even if drosal part B in diaper 100, Particularly received than absorber 14 to the part that more backrest side end side is extended on the second direction Y along item width direction Ya In the state of contracting, the continuous convex portion 40M in center shape is also easily maintained.Thus, drosal part B prevents the sultry effect from improving, Prevent the effect that liquid is revealed from drosal part B sides from also improving.

Further, since the continuous convex portion 40M in above-mentioned center has the part regularly narrowed in second direction Y width, in Entreating continuous convex portion 40M contraction becomes regular, and drosal part B's prevents sultry effect from improving.In addition, can be central continuous The thick close gradient of fibre density is formed in the 40M of convex portion, fluid absorbent and leak preventing effect are also improved.

Based on preferred embodiment, the present invention is described above, but the present invention is not limited to above-mentioned embodiment party Formula.For example, as the positive dough sheet of absorbent commodity, the middle section in 1 in above-mentioned composite sheet 10,10A~10C can be made M composition is the composition of the middle section M in other pieces, can make the side in 1 in above-mentioned composite sheet 10,10A~10C Portion region S's is constituted as the composition of the lateral region S in other pieces.Such as middle section M composition can also be used with being combined Piece 10 is same and composition of lateral region S is same with composite sheet 10B composite sheet or middle section M composition and composite sheet Composite sheet that 10B is same and composition of lateral region S is same with composite sheet 10 or composite sheet 10A etc..

In addition, as the elastomeric element for making absorbent commodity be shunk on the article length direction as its length direction, The elastomeric element 15a to form three-dimensional gauffer can only be configured and any one part of the elastomeric element 16 of leg creases is formed.Separately Outside, the elastomeric element 15a for forming three-dimensional gauffer and the elastomeric element 16 for forming leg creases can be respectively in absorbent commodities Each side side is only arranged one by one, can also more than many ground arranging.Furthermore it is also possible to which not arranging makes absorbability thing The elastomeric element that product shrink on the article length direction as its length direction.

In addition, the absorbent commodity of the present invention can also be the one of pants type in addition to the disposable diaper of deploying type Secondary property diaper, can also be sanitary napkin, incontinence pad, protection pad etc..

On above-mentioned embodiment, the invention also discloses following absorbent commodity.

A kind of absorbent commodities of the ＞ of ＜ 1, it include the positive dough sheet, back sheet and the configuration that are made up of composite sheet this two panels it Between absorber,

Above-mentioned composite sheet has the first direction and the second direction along item width direction along article length direction, And first and second part being laminated engages and forms multiple junction surfaces, first position beyond above-mentioned junction surface To prominent away from the direction of second, the convex portion that the skin side towards wearer is protruded is formed,

Above-mentioned composite sheet has is formed with the middle section of raised part and positioned at the central area with pattern different from each other A pair of lateral regions of the both sides in domain,

The area ratio at the above-mentioned junction surface in above-mentioned each lateral region is higher than the above-mentioned junction surface in above-mentioned middle section Area ratio,

The area ratio Es (%) at the junction surface in absorbent commodities of the ＞ of ＜ 2 as described in the above-mentioned ＞ of ＜ 1, lateral region with The area ratio Em (%) at the junction surface in middle section difference (Es-Em, percentage point) is preferably more than 5%, more preferably More than 10%.

The area ratio at the junction surface in absorbent commodities of the ＞ of ＜ 3 as described in the above-mentioned ＞ of ＜ 1 or the ＞ of ＜ 2, lateral region Es, premised on more than above-mentioned area ratio Em, preferably more than 5%, more preferably more than 10%, it is additionally preferred to for 50% with Under, more preferably less than 30%.

Junction surface Em in absorbent commodities of the ＞ of ＜ 4 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 3, middle section, Premised on less than above-mentioned area ratio Es, preferably less than 30%, more preferably less than 20%, it is additionally preferred to for more than 3%, More preferably more than 5%.

Absorbent commodities of the ＞ of ＜ 5 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 4, the height of above-mentioned middle section is most The height of big convex portion is identical with the height for the convex portion that the height of above-mentioned lateral region is maximum.

Absorbent commodities of the ＞ of ＜ 6 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 5, is formed at above-mentioned lateral region All or part of of above-mentioned junction surface is above-mentioned junction surface of the length in article length direction than being formed at above-mentioned middle section Any all long lengthwise junction surfaces.

Absorbent commodities of the ＞ of ＜ 7 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 6, is being formed at above-mentioned lateral region Junction surface in, first direction X length is than being formed at any junction surface of above-mentioned middle section all long lengthwise junction surfaces Length preferably forms the length of the first direction in the maximum junction surface 3 of middle section M first direction X length More than 1.2 times, more preferably more than 1.5 times, it is additionally preferred to for less than 5 times, more preferably less than 3.5 times.

Absorbent commodities of the ＞ of ＜ 8 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 7, it is above-mentioned convex in above-mentioned middle section Portion is in zigzag configuration, in above-mentioned lateral region, and the ring-type that raised part or raised part ring-type link links convex portion It is in zigzag configuration.

It is above-mentioned in absorbent commodities of the ＞ of ＜ 9 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 8, above-mentioned middle section Junction surface is formed with the configuration pattern of clathrate, and the configuration pattern of above-mentioned clathrate by passing through multiple junction surface intervals respectively Ground linearly multiple grid formation the first junction surface row of arrangement and passes through multiple junction surfaces straight line at spaced intervals respectively Multiple grid formation the second junction surface row of shape arrangement is constituted, and is respectively formed with the position equivalent to mesh of the grid Raised part.

Absorbent commodities of the ＞ of ＜ 10 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 9, is formed at above-mentioned middle section Each convex portion there is hollow bulb by rear side and formed the high convex portion at the top of the convex portion and around the high convex portion with the height The morphogenetic 4 low convex portion of shape that convex portion links is constituted.

Absorbent commodities of the ＞ of ＜ 11 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 10, above-mentioned absorber is by absorbability Core and the clad sheet composition for coating the absorbent core, the absorbent core have not respectively in the both sides of the crotch bottom of absorbent commodity The vertical view for arranging the formation material of the absorbent core is concave notch part or breakthrough part, the above-mentioned lateral region of above-mentioned composite sheet It is overlapping with all or part of of concave notch part or breakthrough part.

Absorbent commodities of the ＞ of ＜ 12 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 11, in above-mentioned absorbent commodity The both sides of length direction are equipped with the piece that inner side edge edge is fixed with the three-dimensional gauffer formation of above-mentioned elastomeric element, the piece Inner side edge edge is fixed in above-mentioned lateral region.

Absorbent commodities of the ＞ of ＜ 13 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 12, with convex portion different from each other Middle section and its both sides lateral region on article length direction at least formed on crotch bottom.

Absorbent commodities of the ＞ of ＜ 14 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 13, with convex portion different from each other Middle section and its both sides lateral region on article length direction throughout above-mentioned absorber total length.

Absorbent commodities of the ＞ of ＜ 15 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 14, in above-mentioned middle section and upper In the arbitrary region for stating lateral region, the equal general planar in face of second side.

Absorbent commodities of the ＞ of ＜ 16 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 15, first and second is nothing Spin cloth.

Absorbent commodities of the ＞ of ＜ 17 as described in the above-mentioned ＞ of ＜ 16, the grammes per square metre of above-mentioned non-woven fabrics is preferably 10g/m²More than, More preferably 15g/m²More than, it is additionally preferred to it is 40g/m²Below, it is more preferably 35g/m²Below.

Absorbent commodities of the ＞ of ＜ 18 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 17, first of stacking and second In junction surface formed by the engagement of piece part, first and second is integratedly pressurizeed, other any portions of the density ratio of two panels The density divided is all high.

Absorbent commodities of the ＞ of ＜ 19 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 18, is formed with the grid of convex portion Mesh will be surrounded by 8 junction surfaces 3 around it respectively.

Absorbent commodities of the ＞ of ＜ 20 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 19, the first junction surface of grid formation Arrange the second junction surface of LR1 and grid formation arrange LR2 angulations θ (reference picture 7) be preferably less than more than 30 ° 165 °, it is more excellent Elect less than more than 45 ° 150 ° as, further preferably more than 90 ° and for less than 120 °.

Absorbent commodities of the ＞ of ＜ 21 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 20, by being arranged including the first junction surface 2 adjacent the first junction surfaces 31 in R1, arrange positioned at first junction surface R1 both sides 2 the second junction surfaces row R2 totally 4 Individual second junction surface 32 and positioned at more lateral 2 the 3rd junction surfaces arrange R3 2 the 3rd junction surfaces 33 amount to 8 engagement Portion is surrounded.

Absorbent commodities of the ＞ of ＜ 22 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 21, is formed at above-mentioned middle section Convex portion the multiple low convex portions that there is high convex portion and combined around it, the high convex portion of the convex portion is when overlooking composite sheet by 4 Second engagement portion envelopes, rounded or ellipse, it is convex that the central portion in the region by 4 second engagement portion envelopes is formed with this The top in portion.

Absorbent commodities of the ＞ of ＜ 23 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 22, is formed at above-mentioned middle section Convex portion there is the tendency that is combined around high convex portion of a pair of first low convex portions and a pair of second low convex portions, the first low convex portion Between 2 the second junction surfaces relative on X in a first direction, the second low convex portion is located on second direction Y relative 2 the Between two junction surfaces.

Absorbent commodities of the ＞ of ＜ 24 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 23, the convex portion of above-mentioned composite sheet Configuration and form are different from a pair of above-mentioned lateral regions in above-mentioned middle section.

Absorbent commodities of the ＞ of ＜ 25 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 24, in the lateral region of composite sheet, Constitute first of the composite sheet the first convex portion, the second convex portion and the 3rd being formed with as 3 kinds of convex portions highly different from each other Convex portion.

Absorbent commodities of the ＞ of ＜ 26 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 25, above-mentioned lateral region is formed with First convex portion, the second convex portion and the 3rd convex portion, H is being set to by the height of the first convex portion₁, the height of the second convex portion is set to H₂, will The height of 3rd convex portion is set to H₃When, this 3 height meet H₁≥H₂＞ H₃Relation.

Absorbent commodities of the ＞ of ＜ 27 as described in the above-mentioned ＞ of ＜ 26, the height H of the first convex portion₁, the second convex portion height H₂With The height H of 3rd convex portion₃Meet H₁＞ H₂＞ H₃Relation.

Absorbent commodities of the ＞ of ＜ 28 as any one of the above-mentioned ＞ of 25 ＞ of ＜~＜ 27, the first convex portion and the second convex portion Vertical view when shape be circular, the circular diameter of the first convex portion is bigger than the circular diameter of the second convex portion.

Absorbent commodities of the ＞ of ＜ 29 as any one of the above-mentioned ＞ of 25 ＞ of ＜~＜ 28, the first convex portion and the second convex portion The shape at top is respectively provided with X in a first direction and second direction Y any direction section, during the vertical view of the 3rd convex portion 43 Shape is substantially rectangular in X length in the first direction.

Absorbent commodities of the ＞ of ＜ 30 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 29, is formed in above-mentioned lateral region There is the ring-type that first convex portion of more than 1 and second convex portion of more than 1 link to link convex portion.

Absorbent commodity described in the above-mentioned ＞ of ＜ 30 of the ＞ of ＜ 31, when overlooking above-mentioned composite sheet, above-mentioned ring-type links convex portion Clip center line in the symmetrical position of line exist a pair by 3 the first convex portions configured along a first direction constitute it is first convex Portion's group, wherein, above-mentioned center line is that the center for 2 the second convex portions that will be configured separated by a distance along a first direction is connected to each other Line,

Constitute 3 the first convex portions X links along a first direction of the first convex portion group.

Absorbent commodities of the ＞ of ＜ 32 as described in the above-mentioned ＞ of ＜ 30 or the ＞ of ＜ 31, links in the ring of convex portion substantially in ring-type Center is formed with above-mentioned central spud.

Absorbent commodities of the ＞ of ＜ 33 as any one of the above-mentioned ＞ of 29 ＞ of ＜~＜ 32, above-mentioned lateral region has the Three convex portions,

The height H of above-mentioned central spud₄With the height H of the second convex portion₂It is roughly the same, the height H of central spud₄Higher than The height H of three convex portions₃。

Absorbent commodities of the ＞ of ＜ 34 as any one of the above-mentioned ＞ of 29 ＞ of ＜~＜ 33, the second convex portion, the 3rd convex portion, Central spud and the 3rd convex portion are according to the order of the second convex portion, the 3rd convex portion, central spud and the 3rd convex portion along as compound The first direction X in a direction in the face of piece is configured regularly and linearly.

Absorbent commodities of the ＞ of ＜ 35 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 34, the above-mentioned side of above-mentioned composite sheet The bending stiffness in portion region is higher than the bending stiffness of above-mentioned middle section.

Absorbent commodities of the ＞ of ＜ 36 as described in the above-mentioned ＞ of ＜ 35, the bending stiffness of above-mentioned lateral region and above-mentioned central area The ratio between the bending stiffness in domain is preferably more than 1.1, more preferably more than 1.2.

Absorbent commodities of the ＞ of ＜ 37 as any one of the above-mentioned ＞ of ＜ 35 or the ＞ of ＜ 36, the bending of above-mentioned lateral region Rigidity, premised on the bending stiffness more than above-mentioned middle section M, preferably more than 10cN, more preferably more than 15cN, in addition Preferably below 50cN, more preferably below 40cN.

Absorbent commodities of the ＞ of ＜ 38 as any one of the above-mentioned ＞ of 35 ＞ of ＜~＜ 37, above-mentioned middle section S's is curved Stiffness, premised on the bending stiffness less than above-mentioned lateral region, preferably below 40cN, more preferably below 30cN, separately It is preferably more than 5cN, more preferably more than 10cN outside.

Absorbent commodities of the ＞ of ＜ 39 as any one of the above-mentioned ＞ of 9 ＞ of ＜~＜ 38, the first junction surface of grid formation The configuration section at the junction surface that LR1 and grid are formed in the second junction surface row LR2 junction surface row is arranged away from (distance between central point) P1 More than 1.1 times of the beeline LL at preferably adjacent junction surface, more preferably more than 1.5 times, it is additionally preferred to for 10 times with Under, more preferably less than 5 times.

Absorbent commodities of the ＞ of ＜ 40 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 39, is formed at above-mentioned middle section Convex portion there is the shape that low convex portion is extended from the high lobe portion of central portion to four directions.

Absorbent commodities of the ＞ of ＜ 41 as described in the above-mentioned ＞ of ＜ 40, above-mentioned composite sheet have from high convex portion into the face of piece side To a pair of first low convex portions extending of a direction and from the high convex portion into the face of piece in direction with said one direction The low convex portion of another pair second that orthogonal direction is extended, as 4 low convex portions for constituting raised part, the first low convex portion from height Convex portion to outermost end extend length L4 convex portions lower than second from high convex portion to outermost end to extend length long.

Absorbent commodities of the ＞ of ＜ 42 as described in the above-mentioned ＞ of ＜ 40 or the ＞ of ＜ 41, above-mentioned high convex portion with above-mentioned low convex portion Boundary portion has to the recessed depression of the internal direction of raised part.

Height in absorbent commodities of the ＞ of ＜ 43 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 42, above-mentioned middle section It is interrupted respectively on the first direction of above-mentioned composite sheet the convex portion for the height maximum spent in maximum convex portion and above-mentioned lateral region Ground is formed with the convex portion shape of the height maximum in the convex portion and above-mentioned lateral region of multiple height maximums in above-mentioned middle section Into in position different from each other on the first direction.

In absorbent commodities of the ＞ of ＜ 44 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 43, above-mentioned composite sheet, above-mentioned Middle section M, the continuous convex portion in center does not extend on second direction Y and is formed with a first direction on X multiple rows of；In above-mentioned side Portion region, the continuous convex portion of sidepiece does not extend on second direction Y and is formed with multiple rows of, above-mentioned center company on X in a first direction Continuous convex portion and the continuous convex portion of above-mentioned sidepiece are alternately arranged on X in a first direction.

Absorbent commodities of the ＞ of ＜ 45 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 44, above-mentioned middle section with it is upper The boundary portion of lateral region is stated, with the borderline region that there is above-mentioned center continuous both convex portion and the continuous convex portion of above-mentioned sidepiece, In the borderline region, the continuous convex portion in the center and the continuous convex portion of the sidepiece are alternately arranged on X in a first direction.

Absorbent commodities of the ＞ of ＜ 46 as any one of the above-mentioned ＞ of 1 ＞ of ＜~＜ 45, it is to include arranging during wearing The drosal part of the dorsal part of wearer is disposed in when veutro portion in the veutro of wearer, wearing and positioned at veutro portion and drosal part Between crotch bottom disposable diaper,

In at least width central portion of above-mentioned drosal part, the bullet for making above-mentioned disposable diaper shrink in the direction of the width Property part is configured with a plurality of at spaced intervals on the length direction of above-mentioned disposable diaper,

In the above-mentioned middle section of above-mentioned composite sheet, the continuous convex portion in center does not extend and in first party in a second direction The formation at spaced up interval has a plurality of,

The elastomeric element configuring area of above-mentioned a plurality of elastomeric element is being configured with, the above-mentioned continuous convex portion in center is not second Side upwardly extend and be formed with it is a plurality of,

The width of the above-mentioned continuous convex portion in center is set into P1, the interval of above-mentioned elastomeric element is set to P2, will be above-mentioned in When entreating the interval between the central portion of continuous convex portion to be set to P3, P1 ＜ P2 ＜ P3 relation is met.

Industrial applicability

According to the absorbent commodity of the present invention, easily folding is produced in the middle section of positive dough sheet and the border of lateral region Song, absorbent commodity is easily deformed as boat-like shape during wearing, results in excellent leak resistance.In addition, by center Region and lateral region, make the height of the maximum convex portion of height identical and make middle section and lateral region formed it is convex The formation pattern in portion is different, so as to realize its excellent leak resistance, even if thus to compress absorbent commodity is filled in into bag State keeping in pack, is not easy to the reduction for occurring leak resistance.Wherein, the shape of ship shape refer to absorbent commodity along The section of its length direction bent by inner side of skin contact surface side lateral region in a concave shape and positive dough sheet with central area Warpage, the state erected in the way of the skin for approaching wearer near the boundary portion in domain.

Claims

1. a kind of absorbent commodity, it includes the suction of the positive dough sheet, back sheet and the configuration that are made up of composite sheet between this two panels Acceptor, the absorbent commodity is characterised by：

The composite sheet has the first direction and the second direction along item width direction along article length direction, and First and second part of stacking engages and forms multiple junction surfaces, and first position beyond the junction surface is to remote Direction from second is protruded, and forms the convex portion that the skin side towards wearer is protruded,

The composite sheet has is formed with the middle section of the convex portion and positioned at the middle section with pattern different from each other A pair of lateral regions of both sides,

The area ratio at the junction surface in each lateral region is higher than the face at the junction surface in the middle section Product ratio,

The height of the maximum convex portion of the height of the middle section and the height of the convex portion of the height maximum of each lateral region It is identical.

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

The area ratio at the junction surface in each lateral region and the area at the junction surface in the middle section The difference of ratio is more than 5 percentage points.

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

The area ratio at the junction surface in each lateral region is less than more than 5% 50%.

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

The area ratio at the junction surface in the middle section is less than more than 3% 30%.

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

All or part of for being formed at the junction surface of the lateral region is that the length ratio in article length direction is formed at The lengthwise junction surface that any of the junction surface of the middle section grows.

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

In the junction surface for being formed at the lateral region, the length of first direction connects than being formed at any of the middle section The length at conjunction portion all long lengthwise junction surfaces is to be formed in the maximum junction surface of the length of the first direction of the middle section Less than more than 1.2 times 5 times of the length of first direction.

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

In the middle section, the convex portion is in zigzag configuration,

In the lateral region, ring-type that the convex portion or the convex portion ring-type link links that convex portion is cross-shaped to match somebody with somebody Put.

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

The junction surface in the middle section is formed with the configuration pattern of clathrate,

The configuration pattern of the clathrate is by multiple lattice for linearly being arranged at spaced intervals by multiple junction surfaces respectively Multiple grid that son forms the first junction surface row and linearly arranged at spaced intervals by multiple junction surfaces respectively are formed Second junction surface row is constituted,

The convex portion is respectively formed with the position equivalent to mesh of the grid.

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

Be formed at each convex portion of the middle section there is hollow bulb by rear side and formed the top of the convex portion high convex portion and Constituted around the high convex portion with the morphogenetic 4 low convex portions of shape linked with the high convex portion.

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

The absorber is made up of the clad sheet of absorbent core and the cladding absorbent core,

The absorbent core has the formation material for not arranging the absorbent core in the both sides of the crotch bottom of absorbent commodity respectively Overlook as concave notch part or breakthrough part,

All or part of of the lateral region of the composite sheet and concave notch part or breakthrough part are overlapping.

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

Inner side edge edge is equipped in the both sides of the length direction of the absorbent commodity and is fixed with the vertical of the elastomeric element The piece of body gauffer formation, the inner side edge edge of the piece is fixed in the lateral region.

12. the absorbent commodity as any one of claim 1~11, it is characterised in that：

The lateral region of the middle section with convex portion different from each other and its both sides in article length direction up to Crotch bottom is formed at less.

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

The lateral region of the middle section and its both sides with convex portion different from each other is in article length direction on time And the total length of the absorber.

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

In the middle section and the arbitrary region of the lateral region, the equal general planar in face of second side.

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

Described first and described second is non-woven fabrics.

16. absorbent commodity as claimed in claim 15, it is characterised in that：

The grammes per square metre of the non-woven fabrics is 10g/m²Above 40g/m²Below.

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

Formed by described first and described second part engagement of stacking in the junction surface, this first and this second Piece is integratedly pressurizeed, and other any portion of density of the density ratio of two panels are all high.

18. the absorbent commodity as any one of claim 8~17, it is characterised in that：

Be formed with the mesh of the grid of the convex portion respectively by 8 junction surfaces by it around surround.

19. the absorbent commodity as any one of claim 8~18, it is characterised in that：

The first junction surface of grid formation row is more than 30 ° 165 ° with the second junction surface of grid formation row's angulation Below.

20. the absorbent commodity as any one of claim 8~19, it is characterised in that：

It is formed with the mesh of the grid of the convex portion 2 the first junction surfaces adjacent in being arranged including the first junction surface, positioned at this Totally 4 the second junction surfaces of 2 the second junction surfaces row of first junction surface row both sides and 2 the 3rd positioned at more lateral connect 8 engagement portion envelopes altogether at 2 the 3rd junction surfaces of conjunction portion row.

21. the absorbent commodity as any one of claim 8~20, it is characterised in that：

Multiple low convex portions that the convex portion of the middle section has high convex portion and combined around it are formed at,

The high convex portion of the convex portion when overlooking composite sheet by 2 the second junction surfaces row 4 the second engagement portion envelopes, it is rounded or Ellipse, the central portion in the region by 4 second engagement portion envelopes is formed with the top of the convex portion.

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

Being formed at the convex portion of the middle section has a pair of first low convex portions with a pair of second low convex portions in high convex portion The tendency that surrounding is combined,

First low convex portion is located between 2 relative in a first direction the second junction surfaces, and the second low convex portion is located in second party Upwards between 2 relative the second junction surfaces.

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

The configuration of the convex portion of the composite sheet and form are different from lateral region described in a pair in the middle section.

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

In the lateral region of the composite sheet, constitute the composite sheet described first is formed with as highly different from each other 3 kinds of convex portions the first convex portion, the second convex portion and the 3rd convex portion.

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

The lateral region is formed with the first convex portion, the second convex portion and the 3rd convex portion,

The height of first convex portion is being set to H₁, the height of the second convex portion is set to H₂, the height of the 3rd convex portion is set to H₃When, This 3 height meet H₁≥H₂＞ H₃Relation.

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

The height H of first convex portion₁, second convex portion height H₂With the height H of the 3rd convex portion₃Meet H₁＞ H₂＞ H₃Relation.

27. the absorbent commodity as any one of claim 24~26, it is characterised in that：

The shape during vertical view of first convex portion and second convex portion is circular,

The circular diameter of first convex portion is bigger than the circular diameter of the second convex portion.

28. the absorbent commodity as any one of claim 24~27, it is characterised in that：

First convex portion and second convex portion are in be respectively provided with top with the section of any direction of second direction in a first direction The shape in portion, the shape during vertical view of the 3rd convex portion is in the substantially rectangular of length in the first direction.

29. the absorbent commodity as any one of claim 1~28, it is characterised in that：

It is formed with the lateral region by first convex portion of more than 1 and the link of second convex portion of more than 1 Into ring-type link convex portion.

30. absorbent commodity as claimed in claim 29, it is characterised in that：

When overlooking the composite sheet, it is in that the symmetrical position of line has a pair by edge that the ring-type, which links convex portion clipping center line, First direction configuration 3 the first convex portions constitute the first convex portion group, wherein, the center line be by along a first direction every The line that the center of 2 the second convex portions of distance configuration is connected to each other is opened,

3 the first convex portions for constituting first convex portion group link along a first direction.

31. the absorbent commodity as described in claim 29 or 30, it is characterised in that：

Substantial middle in the ring that the ring-type links convex portion is formed with central spud.

32. absorbent commodity as claimed in claim 31, it is characterised in that：

The lateral region has the 3rd convex portion,

The height H of the central spud₄With the height H of second convex portion₂It is roughly the same, the height H of the central spud₄It is higher than The height H of 3rd convex portion₃。

33. the absorbent commodity as described in claim 31 or 32, it is characterised in that：

Second convex portion, the 3rd convex portion, central spud and the 3rd convex portion are according to the second convex portion, the 3rd convex portion, central spud and the 3rd First direction of the order of convex portion along a direction in the face as composite sheet is configured regularly and linearly.

34. the absorbent commodity as any one of claim of right1~33, it is characterised in that：

The bending stiffness of the lateral region of the composite sheet is higher than the bending stiffness of the middle section.

35. absorbent commodity as claimed in claim 34, it is characterised in that：

The ratio between the bending stiffness of the lateral region and the bending stiffness of the middle section are more than 1.1.

36. the absorbent commodity as any one of claim 34 or 35, it is characterised in that：

The bending stiffness of the lateral region is more than 10cN below 50cN.

37. the absorbent commodity as any one of claim 34~36, it is characterised in that：

The bending stiffness of the middle section is more than 5cN below 40cN.

38. the absorbent commodity as any one of claim 8~37, it is characterised in that：

The junction surface in the row of junction surface that the first junction surface of grid formation row and the second junction surface of grid formation are arranged Less than more than 1.1 times 10 times away from the beeline for adjacent junction surface of configuration section.

39. the absorbent commodity as any one of claims 1 to 38, it is characterised in that：

It is formed at the shape that there is low convex portion to be extended from the high lobe portion of central portion to four directions for the convex portion of the middle section.

40. absorbent commodity as claimed in claim 39, it is characterised in that：

The composite sheet have one direction in direction is extended into the face of piece from high convex portion a pair of first low convex portions and from this The low convex portion of another pair second that with one direction orthogonal direction of the high convex portion into the face of piece in direction is extended, is used as structure Into 4 low convex portions of the convex portion,

The prolonging from high convex portion to outermost end for extending length convex portion lower than second from high convex portion to outermost end of first low convex portion Go out length long.

41. the absorbent commodity as described in claim 39 or 40, it is characterised in that：

The high convex portion has the recessed depression of the internal direction to the convex portion with the boundary portion of the low convex portion.

42. the absorbent commodity as any one of Claims 1 to 41, it is characterised in that：

The convex portion of height maximum in the convex portion and the lateral region of height maximum in the middle section is respectively described Discontinuously be formed with the first direction of composite sheet it is multiple,

The maximum convex portion of height in height in the middle section maximum convex portion and the lateral region be formed at this Position different from each other on one direction.

43. the absorbent commodity as any one of Claims 1 to 42, it is characterised in that：

In the composite sheet, in the middle section, the extension and in a first direction in a second direction of the continuous convex portion in center On be formed with it is multiple rows of；In the lateral region, the continuous convex portion of sidepiece not extension and in a first direction shape in a second direction It is multiple rows of into having,

The continuous convex portion in center and the continuous convex portion of the sidepiece are alternately arranged in a first direction.

44. absorbent commodity as claimed in claim 43, it is characterised in that：

In the middle section and the boundary portion of the lateral region, with there is the center, continuously convex portion and the sidepiece connect The borderline region of both continuous convex portions,

In the borderline region, the continuous convex portion in the center and the continuous convex portion of the sidepiece are alternately arranged in a first direction.

45. the absorbent commodity as any one of Claims 1 to 44, it is characterised in that：

It is the dorsal part for including being disposed in the dorsal part of wearer when being disposed in the veutro portion of the veutro of wearer, wearing during wearing Portion and the disposable diaper of the crotch bottom between veutro portion and drosal part,

In at least width central portion of the drosal part, a plurality of bullet for making the disposable diaper shrink in the direction of the width Property part is configured with a plurality of at spaced intervals on the length direction of the disposable diaper,

In the middle section of the composite sheet, the extension and in a first direction in a second direction of the continuous convex portion in center Be formed with spaced intervals it is a plurality of,

The elastomeric element configuring area of a plurality of elastomeric element is being configured with, the continuous convex portion in center is not in second direction It is upper extension and be formed with it is a plurality of,

The width of the continuous convex portion in center is set into P1, the interval of the elastomeric element is set to P2, by the center even When interval between the central portion of continuous convex portion is set to P3, P1 ＜ P2 ＜ P3 relation is met.