CN103201097A

CN103201097A - Elastic sheet manufacturing method

Info

Publication number: CN103201097A
Application number: CN2011800518142A
Authority: CN
Inventors: 森田晃央; 森田进之介; 梁岛拓郎; 齐藤数马
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2010-10-28
Filing date: 2011-10-21
Publication date: 2013-07-10
Anticipated expiration: 2031-10-21
Also published as: CN103201097B; WO2012057030A1; TW201233376A; TWI487512B

Abstract

The disclosed manufacturing method is for continuously manufacturing an elastic sheet fixed in a state in which a elastic thread (7) extends between a pair of band-like sheets (50, 60) in a direction that intersects the y direction. The disclosed manufacturing method involves a supply step for introducing the elastic thread (7) onto a rotating arm (14) for winding the elastic thread; a conveying step for using the rotating arm (14) to continuously wind the elastic thread (7) onto a pair of conveyor belts (12, 13) and conveying, by means of the conveyor belts (12, 13), the elastic thread (7) between the band-like sheets (50, 60); and a cutting step for cutting the portion of the elastic thread (7) extending from both ends in the x direction of the band-like sheets (50, 60).

Description

The manufacture method of Stretchable sheet

Technical field

The present invention relates to a kind of manufacture method of Stretchable sheet.

Background technology

From saving raw material as far as possible, control discarded object as far as possible, be conducive to environmental protection, the viewpoint of controlling cost, the disposable diaper that a kind of deploying type is arranged, in other operation, make the waistline sheet material be equipped with pull stap, in comprising the OBL absorbent main body of absorber, add this waistline sheet material and make.From the viewpoint of dress property, the parts of the preferred retractility of waistline sheet material as the waistline sheet material, generally use the film of retractility and form.But, the film cost height of retractility, therefore, preferred so-called rubber covered wire (rubber yarn) the formation waistline sheet material of using as general elastomeric element.But, use rubber covered wire obtain the waistline sheet material operation, this waistline sheet material is added under the situation that the operation of the disposable diaper that obtains deploying type in the absorbent main body carries out in a series of flow process continuously, use the flexible direction of the waistline sheet material of rubber covered wire formation usually to be the direction identical with the throughput direction of absorbent main body, the direction orthogonal thereto with the flexible direction of desired waistline sheet material when dressing the disposable diaper of deploying type.Therefore, to use the formed waistline sheet material of rubber covered wire to make an addition to the disposable diaper that absorbent main body is made deploying type by embedding (in-line) operation, in the case, need will be added in the absorbent main body after counter the turning 90 degrees of waistline sheet material of using rubber covered wire and forming.Like this, need to make the anti-device that turn 90 degrees of waistline sheet material in addition, therefore, cause equipment investment to increase.

As the method for not using the above-mentioned anti-device that turn 90 degrees, for example, in patent documentation 1, patent documentation 2, put down in writing the manufacture method of Stretchable sheet, this method is carried out following operation: coating adhesive on the water penetration sheet material in alongst moving, on this bonding agent coated face, make the linear elastic bodies of having given tension force along the sheet face of the sheet material that moves and towards the sheet material moving direction with the parallel movement of (zigzag) state in a zigzag, the operation bonding with sheet material under the state that makes this linear elastic bodies elongation; With the operation of cutting off above-mentioned linear elastic bodies at two ends.In addition, in patent documentation 1, also put down in writing and reconfigured the method for the linear elastic bodies of state in a zigzag abreast.

But, for the employed cutter of putting down in writing at patent documentation 1 and patent documentation 2 (cutter) in cutting off operation, be difficult to that each of the two ends of linear elastic bodies do not wanted part and repair neat shortly and cut off the degraded appearance of the Stretchable sheet of manufacturing.In addition, in patent documentation 1 and patent documentation 2, for repair neat and cut off each method of part not at the two ends of linear elastic bodies shortly, except only disposing roller cutter (roller cutter), without any displaying.

In addition, in the technology that patent documentation 1,2 is put down in writing, because removing the elongation state of linear elastic bodies, the part that extends out from the ora terminalis of the width of banded sheet material is residual etc. under the state of irregular direction, the degraded appearance of the Stretchable sheet of manufacturing.

Patent documentation 1: Japanese kokai publication sho 63-243309 communique

Patent documentation 2: TOHKEMY 2010-22588 communique

Summary of the invention

Invent problem to be solved

Problem of the present invention is, a kind of manufacture method that can solve the Stretchable sheet of aforementioned existing in prior technology shortcoming is provided.

Be used for solving the method for problem

The present invention is a kind of manufacture method of Stretchable sheet, this manufacture method is made Stretchable sheet continuously, described Stretchable sheet with linear elastic bodies with and the state that extends of the throughput direction of the banded sheet material direction of reporting to the leadship after accomplishing a task be fixed between a pair of described banded sheet material.

The manufacture method of Stretchable sheet of the present invention comprises: supply with operation, it emits described linear elastic bodies continuously, and this linear elastic bodies of emitting is imported to the elastomer winder unit; Carry operation, it is with this elastomer winder unit, this linear elastic bodies is wound in continuously at a pair of conveyer belt that separates with the direction of the throughput direction quadrature of sheet material, and utilizes a pair of this conveying to bring this linear elastic bodies of conveying; Integrated operation, it is fixed in this linear elastic bodies of carrying between the described banded sheet material; With cut off operation, its will be from the both ends of the width of a pair of described banded sheet material respectively the part of extended described linear elastic bodies cut off.

In aforementioned cut-out operation, preferably the part with extended described linear elastic bodies keeps elongation state ground to cut off, and the extended part of this linear elastic bodies is removed.

As aforementioned cut-out operation, preferably include first and cut off operation, it is after described integrated operation, the extended part of width two ora terminalis from described banded sheet material of described linear elastic bodies is cut off, remove this linear elastic bodies and be wound in the state that described line is carried the elongated structure body of usefulness, also preferably include second and cut off operation, it carries out after first cuts off operation, with described linear elastic bodies from the whole or part cut-out of the extended part of width two ora terminalis of described banded sheet material and remove.

Description of drawings

Fig. 1 is the vertical view of the disposable diaper of Stretchable sheet that the manufacture method according to Stretchable sheet of the present invention the is obtained deploying type that is used for the waistline sheet.

Fig. 2 is the skeleton diagram of manufacturing installation of the waistline sheet of the expression first embodiment of the invention disposable diaper of making deploying type shown in Figure 1.

Fig. 3 is expression imports skeleton diagram from the elastomeric feed unit of wire to turning arm shown in Figure 2.Fig. 3 also is the stereogram of structure of upstream side of the turning arm (elastomer winder unit) of expression device shown in Figure 16.

Fig. 4 is the skeleton diagram of the observed manufacturing installation shown in Figure 2 from the side.

Fig. 5 is the X1-X1 line sectional view of inboard of a pair of conveyer belt of manufacturing installation shown in Figure 2.

Fig. 6 is the X2-X2 line sectional view of inboard of a pair of conveyer belt of expression manufacturing installation shown in Figure 2.

Fig. 7 is the skeleton diagram of manufacturing installation of waistline sheet of representing to make second embodiment of the invention the disposable diaper of deploying type shown in Figure 1.

Fig. 8 is the skeleton diagram of the observed manufacturing installation shown in Figure 7 from the side.

Fig. 9 is the skeleton diagram of the manufacturing installation of the waistline sheet of the observed disposable diaper of making deploying type shown in Figure 1 according to the 3rd embodiment according to the present invention from the side.

Figure 10 is the sectional view of the cutting unit of manufacturing installation shown in Figure 9.

Figure 11 is the skeleton diagram of the manufacturing installation of the waistline sheet of the observed disposable diaper of making deploying type shown in Figure 1 according to the 4th embodiment according to the present invention from the side.

Figure 12 is the sectional view of the cutting unit of manufacturing installation shown in Figure 11.

Figure 13 is the skeleton diagram of the manufacturing installation of the waistline sheet of the observed disposable diaper of making deploying type shown in Figure 1 according to the 5th embodiment according to the present invention from the side.

Figure 14 is the sectional view of the cutting unit of manufacturing installation shown in Figure 13.

Figure 15 is the waistline sheet material that obtains according to an embodiment of the invention of expression and the vertical view of flat type disposable diaper.

Figure 16 is the stereogram of manufacturing installation of Stretchable sheet of the enforcement of the expression manufacture method that is applicable to the 6th embodiment of the present invention.

Figure 17 is that pattern ground expression is used for Stretchable sheet 3A to manufacturing in manufacturing installation shown in Figure 2 and carries out second stereogram of an example that cuts off the cutting unit of operation.

Figure 18 is the stereogram (being equivalent to Figure 17) of expression the 7th embodiment of the present invention.

Figure 19 is the stereogram of cutting unit of manufacturing installation of making the waistline sheet of flat type disposable diaper shown in Figure 1 according to the 8th embodiment according to the present invention.

Figure 20 is the stereogram of cutting unit of manufacturing installation of making the waistline sheet of flat type disposable diaper shown in Figure 1 according to the 9th embodiment according to the present invention.

The specific embodiment

Below, with reference to accompanying drawing, according to it manufacture method of Stretchable sheet of the present invention is described preferred embodiment.

The Stretchable sheet of Zhi Zaoing for example is used for the waistline sheet 3 of the disposable diaper 1 of deploying type as shown in Figure 1 in the present embodiment.Therefore, at first, the disposable diaper 1 that will be used for the deploying type of waistline sheet according to the Stretchable sheet of present embodiment manufacturing is described.

As shown in Figure 1, below the disposable diaper 1(of deploying type, be also referred to as " diaper 1 ") have: have when dressing the A of veutro portion at the veutro of wearer, in the absorbent main body 2 of the drosal part B of dorsal part and the crotch bottom C between the A of veutro portion and drosal part B; With the pair of right and

left waistline sheets

3,3 that link to each other and arrange with two foreign sides about drosal part B.Diaper 1 has the pair of right and left sheet material 4,4 that link to each other and arrange with two foreign sides about the A of veutro portion as shown in Figure 1.In addition, the absorbent main body 2 of diaper 1 is oblong-shaped under the state that becomes plane expansion as shown in Figure 1.In addition, the sheet material 4 of diaper 1 be trapezoidal shape becoming under the state of plane expansion as shown in Figure 1, and absorbent main body 2 is fixed in by bonding agent and means such as hot sticky in the following bottom side that length is grown.

In the following description, as Y-direction, the width of absorbent main body 2 (also being the width of diaper 1) describes as directions X with the longitudinally (also being the longitudinally of diaper 1) of absorbent main body 2.

A pair of

waistline sheet

3,3 each all are rectangles becoming under the state of plane expansion.Each waistline sheet 3 has: two pieces of

sheet materials

5,6; With in many linear elastic bodies 7 that under the state of elongation, dispose between two pieces of sheet materials 5,6.Each waistline sheet 3 is made up of the Stretchable sheet of linear elastic bodies 7 fixing under the state of the direction elongation of reporting to the leadship after accomplishing a task with Y-direction between a pair of sheet material 5,6.Particularly, each waistline sheet 3 as shown in Figure 1, between the identical rectangular-shaped two pieces of

sheet materials

5,6 of the identical size of shape, to arrange at the interval that the Y-direction sky is opened about equally in the linear elastic bodies with the elongation of the direction (directions X) of Y-direction quadrature, utilize bonding agent and means such as hot sticky fixing and form integratedly.On the waistline sheet 3 of the rectangle that forms like this, utilize bonding agent and means such as hot sticky that pull stap 8 is fixedly arranged in the end of its directions X foreign side side.In addition, the drosal part B of absorbent main body 2 is fixed in by bonding agent and means such as hot sticky in the end of square side in waistline sheet 3 its directions Xs of rectangle, and setting links to each other with the directions X foreign side of drosal part B.In addition, the waistline sheet 3(Stretchable sheet of manufacturing in the present embodiment) linear elastic bodies 7 that has with the direction elongation of Y-direction quadrature, but also can on the direction of reporting to the leadship after accomplishing a task with Y-direction, extend.

In this diaper 1, the throughput direction y of the sheet material of the Stretchable sheet that constitutes waistline sheet 3 when making is parallel with Y-direction, and the consistent mode of the direction x of the throughput direction quadrature of the sheet material during with manufacturing and directions X is fixed.

Absorbent main body 2 has as shown in Figure 1: the absorber 23 of the back-sheet 22 of surficial sheets 21, opaque liquid or the water proofing property of liquid permeability and the liquid retentivity between these two pieces of sheet materials 21,22.Absorbent main body 2 makes absorber 23 between these two pieces of sheet materials 21,22 as shown in Figure 1, with form the inner face of diaper 1 surficial sheets 21, engage and form with the back-sheet 22 of the outside of formation diaper 1.In addition, absorbent main body 2 is set up the

sheet material

24,24 that stereo enclosure forms usefulness along two sidepieces of Y-direction and is formed as shown in Figure 1.The sheet material 24 that stereo enclosure forms usefulness is fixed in surficial sheets 21 along the Y-direction both sides of absorbent main body 2.Has the elastomeric element 25 that stereo enclosure forms usefulness near the ora terminalis of the sheet material 24 that each stereo enclosure forms usefulness square side in the directions X, when dressing, because of the convergent force of this elastomeric element 25, leave surficial sheets 21 apart from the part of this ora terminalis Rack and form stereo enclosure.In addition, the part around the shank of the longitudinally both sides that are arranged at absorbent main body 2 arranges the elastomeric element 26 that leg creases forms usefulness.When dressing, the contraction formation leg creases according to elastomeric element 26 is fit to around the shank well.

Formation material to diaper 1 describes.

As the sheet material 5 that constitutes

waistline sheet

3,6 and sheet material 4, usually so long as be used for absorbent commodity such as disposable diaper, just can use, do not limit especially.For example, as

sheet material

5,6 and sheet material 4, can use nonwoven, fabric, film (film) or their laminated sheet etc.As the surficial sheets 21, the back-sheet 22 that constitute absorbent main body 2, usually so long as, just can use not special restriction for absorbent commodities such as disposable diapers.For example, as surficial sheets 21, the nonwoven of hydrophily and liquid permeability etc. can be used, as back-sheet 22, the resin film of opaque liquid or water proofing property and the duplexer of resin film and nonwoven etc. can be used.As absorber 23, can use the clad sheet material of forming with the thin paper of water penetration and nonwoven (core wrap sheet) to coat the aggregate (also can be nonwoven) of fiber such as paper pulp fiber or keep the material etc. of the absorbent core that water-absorbent polymer particles forms therein.Form with sheet material 24 as the stereo enclosure that constitutes stereo enclosure, can use film, nonwoven, fabric or their laminated sheet etc. of retractility.

As linear elastic bodies 7 with constitute the elastomeric element 25 of stereo enclosure, can use the retractility material of the wire that the polyethylene-alpha olefin copolymer etc. of natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethene etc. constitutes.Except the cross section is circle, square, also comprise the material of band shape in a narrow margin such as ellipse, cross section rectangle, also can use the material of multifilament (multifilament) type.The width of strand elastic (perhaps diameter) for example is 0.1～3mm, below the preferred 1mm.As pull stap 8, the material that for example can use on the face of a side of bands such as nonwoven (tape) base material hook (hook) parts by the manual hasp of stickups such as heat bonding and bonding agent (mechanical fastener) to form.

Below, to make the waistline sheet 3(Stretchable sheet of above-mentioned diaper 1) situation be example, preferred first embodiment of the manufacture method of Stretchable sheet of the present invention is described with reference to accompanying drawing.

The ground expression of Fig. 2 pattern is applicable to the waistline sheet 3(Stretchable sheet of present embodiment) the manufacturing installation 11A of manufacture method.

Manufacturing installation 11A as shown in Figure 2, be to make waistline sheet 3(Stretchable sheet continuously) device, be equipped with the turning arm (elastomer winder unit) 14 of elastomer coiling usefulness, be used for the direction (x direction) that linear elastic bodies 7 is wound on continuously with throughput direction (y direction) quadrature of sheet material is gone up on a pair of

conveyer belt

12,13 that separates.In addition, manufacturing installation 11A comprises as shown in Figures 2 and 3: emit linear elastic bodies 7 continuously, linear elastic bodies 7 is imported to the elastomer feed unit 15 of turning arm 14; The supply unit 16 that utilizes aforementioned a pair of

conveyer belt

12,13 that linear elastic bodies 7 is carried between a pair of

banded sheet material

50,60; Use a pair of niproll (nip roller) 171,172 fixing integrated unit 17 of the linear elastic bodies 7 of elongation state between a pair of

banded sheet material

50,60; With the part cutting unit 18 that cuts off respectively the linear elastic bodies 7 that extends out from banded sheet material 50, two ends of width of 60.

The throughput direction of sheet material is, be wound onto a pair of

conveyer belt

12,13 linear elastic bodies 7 throughput direction or with the throughput direction of these linear elastic bodies 7 integrated sheet materials (banded sheet material 50 and/or 60).

Arrow y direction indication among Fig. 2 as the throughput direction of sheet material, linear elastic bodies 7 and a pair of

banded sheet material

50,60 throughput direction, the waistline sheet 3(Stretchable sheet that also is and finally makes according to present embodiment) throughput direction and this waistline sheet 3(Stretchable sheet is installed) the identical direction of throughput direction of non-individual body of diaper 1.In addition, the arrow x direction among Fig. 2 is

banded sheet material

50,60 width, is the direction with the throughput direction quadrature of sheet material.In addition, the arrow z direction among Fig. 2 is a pair of niproll 171 described later, 172 directions respect to one another.

As shown in Figure 2, the conveyer belt 12 of supply unit 16 is rotating bands of annular shape (endless), is made up of epimere conveyer belt 12a and the hypomere conveyer belt 12b of two sections.Epimere conveyer belt 12a is set up in the rotating shaft direction and is arranged between the pulley 121,122 of z direction.Hypomere conveyer belt 12b is set up in the rotating shaft direction and is arranged between the pulley 124,125 of z direction.Pulley 121 is located between a pair of

banded sheet material

50,60 fixedly a pair of niproll 171 of the linear elastic bodies 7 of elongation state, 172 downstream, and pulley 122 is positioned at niproll 171,172 upstream side.Pulley 124 is positioned at than niproll 171,172 and more leans on the downstream, and pulley 125 is positioned at niproll 171,172 upstream sides.Pulley 121,124 is arranged to two sections in identical position.In addition, pulley 122,125 also is arranged to two sections in identical position.In addition, pulley 121(pulley 124) and pulley 122(pulley 125) be positioned at than banded sheet material 50,60 x direction end more by the position of x direction foreign side.In each, be connected with servomotor (not shown) at its drive division at pulley 121 and pulley 124, can change epimere conveyer belt 12a and hypomere conveyer belt 12b rotary speed separately.

The conveyer belt 13 of supply unit 16 as shown in Figure 2, and is same with conveyer belt 12, is annular rotating band, is made up of epimere conveyer belt 13a and the hypomere conveyer belt 13b of two sections.Epimere conveyer belt 13a is set up in the rotating shaft direction and is arranged between the pulley 131,132 of z direction.Hypomere conveyer belt 13b is set up in the rotating shaft direction and is arranged between the pulley 134,135 of z direction.Pulley 131 is positioned at a pair of niproll 171,172 downstream, and pulley 132 is positioned at niproll 171,172 upstream side.Pulley 134 is positioned at than niproll 171,172 more by the downstream, and pulley 135 is positioned at niproll 171,172 upstream side.Pulley 131,134 is arranged to two sections in identical position.In addition, pulley 132,135 also is arranged to two sections in identical position.In addition, pulley 131(pulley 134) and pulley 132(pulley 135) be positioned at than banded sheet material 50,60 x direction end more by the position of x direction foreign side.In each, be connected with servomotor (not shown) at its drive division at pulley 131 and pulley 134, can change epimere conveyer belt 13a and hypomere conveyer belt 13b rotary speed separately.

As shown in Figure 2, by being set up in the pulley 121 that arranges in the manner described above, 122 and pulley 124,125, conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) spread all over the downstream and arrange from a pair of niproll 171,172 upstream side.In addition, by being set up in the pulley 131 that arranges in the manner described above, 132 and pulley 134,135, conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) spread all over the downstream and arrange from a pair of niproll 171,172 upstream side.In addition, conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) be positioned at banded sheet material 50,60 x direction foreign side, and the left and right symmetrically setting.Conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) be rotated to the mode that the y direction moves according to separately outer circumferential side.

Conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) all preferably be with synchronously.Conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) rotary speed, namely be arranged at the control part (not shown) control that the rotary speed of the servomotor (not shown) of pulley 121 and pulley 124 and pulley 131 and pulley 134 drive division separately is equipped with by manufacturing installation 11A.

Turning arm 14 comprises as shown in Figure 2: have axial region 142, around the arm 141 of rotation section 143 and linking part 144; With the center line with axial region 142 be rotating shaft, make the driving mechanism 147 of arm 141 rotation.Linking part 144 is respectively with axial region 142 with around rotation section 143 angled ground combinations, around rotation section 143 and axial region 142 almost parallels.Axial region 142 has the introducing port 145 of linear elastic bodies 7 at the one end, the export mouth 146 that has linear elastic bodies 7 at the one end around rotation section 143, pass through axial region 142, linking part 144 and center on rotation section 143 from the linear elastic bodies 7 that introducing port 145 imports, successfully derive from export mouth 146.Also can be at places such as the bend of arm 141 and export mouths 146, configuration can reduce and linear elastic bodies 7 between the various well-known parts (driven voller and low friction means etc.) of friction.

Position around the export mouth 146 of rotation section 143 is arranged at than conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the end of upstream side more lean on the downstream.Turning arm 14 is equipped with servomotor 148 at its drive division (axial region 142), by the rotation of this servomotor 148, around rotation section 143 at conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) periphery rotation.The diameter of the track of export mouth 146 rotation is bigger than the distance between a pair of

conveyer belt

12,13 the outside.

Utilize this turning arm 14, the linear elastic bodies 7 that obtains can be wound on conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b continuously) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the end of upstream side and outer circumferential side separately.The rotary speed of turning arm 14, be the control part (not shown) control that the rotary speed of servomotor 148 is equipped with by manufacturing installation 11A.

Elastomer feed unit 15 comprises as shown in Figure 3: be positioned at the downstream of the bobbin 70 that is wound with linear elastic bodies 7, utilize brake to apply the tensioner 151 of tension force in linear elastic bodies 7; Be positioned at the downstream of tensioner 151, emit roller 152 from what bobbin 70 was emitted linear elastic bodies 7; Be positioned at the downstream that emits roller 152, be used for measuring the tension draftomter 153 of tension force.Emit roller 152 its rotating shaft directions and be arranged on the x direction.In emitting roller 152, at its drive division the servomotor (not shown) is installed.Emitting roller 152 reels a circle or multi-turn (preferred two circles) linear elastic bodies 7 and uses in its periphery.The control part (not shown) that utilizes manufacturing installation 11A to be equipped with, the output that detects according to tension draftomter 153, the rotary speed of control servomotor (not shown), namely emit the rotary speed of roller 152, can roll out linear elastic bodies 7 from bobbin 70 by tension force according to the rules.

Elastomer feed unit 15 comprises the feed roller 156 that is positioned at the downstream that emits roller 152 as shown in Figure 3.Feed roller 156 is arranged at turning arm 14 and emits between the roller 152, and its rotating shaft direction is arranged on the x direction.Feed roller 156 is equipped with the servomotor (not shown) at its drive division.The rotary speed of servomotor (not shown), be the control part (not shown) control that the rotary speed of feed roller 156 is equipped with by manufacturing installation 11A.

Integrated unit 17 is as Fig. 2, a pair of niproll 171,172 that comprises shown in Figure 4.As a pair of niproll 171,172, the columnar roller that can use metal columnar roller and soft silica gel to make.At a pair of niproll 171,172 any one drive division the servomotor (not shown) is installed, the control part (not shown) control rotary speed that is equipped with by manufacturing installation 11A.The gear that drives reception and registration usefulness is installed at a pair of niproll 171,172 rotating shaft separately.Utilize this driver element (not shown), according to the speed of production of Stretchable sheet, can control the servomotor (not shown) rotary speed, be one of them niproll 171,172 rotary speed.At this moment, use gear meshing by driving to pass on, driving force is also passed on to another niproll 172,171, can make a pair of niproll 171,172 rotations.In order to make a pair of niproll 171,172 bearing portions between a pair of

banded sheet material

50,60, firmly fix the linear elastic bodies of elongation state, utilize the power of oil pressure, pneumatics, spring etc., bearing portions separately is pressurized.

A pair of niproll 171,172 is positioned at conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b as shown in Figure 2) all sides and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) all sides between.

Cutting unit 18 among the manufacturing installation 11A comprises a pair of slitting roll (score cutter roller) 183 and anvil roller (anvil roller) 184 as Fig. 2, shown in Figure 4.Cutting unit 18 is arranged at a pair of

conveyer belt

12,13 inside part.In detail, a pair of slitting roll 183 and anvil roller 184 on the y direction, be positioned at a pair of niproll 171,172, and conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) roller 123,126 or conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) roller 133,136 between.As shown in Figure 2, a pair of slitting roll 183 and anvil roller 184 are positioned at conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b on the x direction) all sides and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) all sides between.

The slitting roll 183 of the upper side of z direction is equipped with the cutter 185,185 that spread all over circumferencial direction at each peripheries of two foreign sides of x direction as shown in Figure 6.Cutter 185 are positioned at than the banded sheet material 50 of being turned back by side outside, 60 the outer more outer side of square end of x direction and banded

sheet material

50,60 the outer square end of this x direction and conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b in manufacturing installation 11A) all sides between and banded sheet material 50, this x direction of 60 square end and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b outward) all sides between.Cutter 185 side-lookings are toroidal.

The anvil roller 184 of the lower side of z direction is than slitting roll 183 longer roller on the x direction as shown in Figure 6.Anvil roller 184 is equipped with cutter support 187 in the position corresponding with each cutter 185 of slitting roll 183.187 side-lookings of cutter support are toroidal.The diameter of the cutter support 187 of toroidal as shown in Figure 6, and is bigger than the diameter of the x direction central authorities of anvil roller 184 in manufacturing installation 11A, but may not be big, for example, also can be identical diameter.

In manufacturing installation 11A, at slitting roll 183 and anvil roller 184, at drive division the servomotor (not shown) is installed, control its rotary speed by the control part (not shown) that manufacturing installation 11A is equipped with.The rotary speed of the cutter 185 of slitting roll 18 rotary speed with the cutter support 187 of slitting roll 184 basically is identical, still, and also can be faster than the rotary speed of cutter support 187.In addition, the rotary speed of cutter 185 is peripheral speeds of the cutter 185 of slitting roll 18, and the rotary speed of cutter support 187 is peripheral speeds of the cutter support 187 of anvil roller 184.Viewpoint from the cuttability of linear elastic bodies 7, the rotary speed of cutter 185 is preferably fast than the rotary speed of cutter support 187, peripheral speed ratio with respect to the rotary speed of the cutter 185 of the rotary speed of cutter support 187 is 1～10, preferred 1～2, more preferably 1～1.5.But, the situation identical with the rotary speed of cutter support 187 with cutter 185 compared, damage to cutter 185 and cutter support 187 increases, therefore, suitably determine with respect to the beguine of the peripheral speed of the rotary speed of the cutter 185 of the rotary speed of cutter support 187 material (quality, thickness) and the percentage elongation according to linear elastic bodies 7.In addition, if the particularly cutter support 187 of anvil roller 184 is soft excessively, so, the cutter support 187 formation groove that will wear and tear, viewpoint from the cutting variation, when changing the ratio of peripheral speed, there preferably have in the hardness of the cutter support 187 of anvil roller 184 and the cutter 185 of slitting roll 183 to be poor, and the cutter support 187 of preferred anvil roller 184 is harder.

In addition, the cutting unit 18 of manufacturing installation 11A as shown in Figure 6, comprise the one-piece type slitting roll 183 that the cutter 185,185 that cut off roller and a pair of toroidal form, but also can replace one-piece type slitting roll 183, outfit can keep so-called desk-top (holder type) cutter of the cutter of a pair of circle rotatably.

Needn't the servomotor (not shown) be installed at the drive division of slitting roll 183, for example, under the situation of desk-top cutter, also motor can be installed, to anvil roller 184 pressurizations, with the related rotation of mode of together rotating with the rotation of cutter support 187.

As Fig. 4, shown in Figure 6, in manufacturing installation 11A, at the cutter support 187 of two foreign sides of the x of anvil roller 184 direction, 187 each the upper sides of z direction, be provided with linear elastic bodies 7 by pressure zone 191,191.Press pressure zone 191, the formation of 191 left and right symmetricallies, so, in the following description, one of them is described by pressure zone 191.

Press pressure zone 191 as shown in Figure 4, be set up in the rotating shaft direction and be arranged between

pulley

191a, 191b on the x direction, the 191c.Pulley 191a is positioned at the downstream of anvil roller 184, and pulley 191c is positioned at the upstream side of anvil roller 184, and pulley 191b is positioned at the upstream side of pulley 191c.The lower end of the lower end of the z direction of pulley 191a and the z direction of pulley 191c is positioned at than the upper end of the z direction of anvil roller 184 more on the lower.Therefore, be set up between

pulley

191a, 191b, the 191c by pressure zone 191 as shown in Figure 4, contact the related rotation along with the rotation of anvil roller 184 with the part zone of the periphery of the cutter support 187 of anvil roller 184.

Manufacturing installation 11A as shown in Figure 2, comprise attraction portion 195,195, it is that cut off and be positioned at the not part of linear elastic bodies 7 of two foreign sides of a pair of banded sheet material 50,60 x direction to be used for attracting being used as a pair of slitting roll 183 of cutting unit 18 and anvil roller 184.Attraction portion 195,195 is arranged at x direction two foreign sides of anvil roller 184.In addition, the position of configuration attraction portion 195,195 also can be located at by pressure zone 191 and its downstream of leaving mutually after cutter support 187 contacts.

Below, the method for using above-mentioned manufacturing installation 11A to make Stretchable sheet is described.

At first, as shown in Figure 3, emit linear elastic bodies 7 continuously, the turning arm 14(that the linear elastic bodies 7 of emitting is imported to elastomer coiling usefulness supplies with operation).In detail, use is emitted roller 152 and is emitted linear elastic bodies 7 continuously from the bobbin 70 that is wound with linear elastic bodies 7.When emitting, the output that detects according to the tension force of 153 pairs of linear elastic bodies 7 of tension draftomter, the control part (not shown) that utilizes manufacturing installation 11 to be equipped with, control rolls out the rotary speed of roller 152, and tension force is according to the rules emitted linear elastic bodies 7 from bobbin 70.

Then, import linear elastic bodies 7 to turning arm 14.When importing, for by tensioner 151 with emit the linear elastic bodies 7 that roller 152 is extended at the elongation stress of regulation, utilize turning arm 14 according to the speed more than the winding speed that linear elastic bodies 7 is wound on a pair of

conveyer belt

12,13, be supplied to turning arm 14 by feed roller 156.Herein, " winding speed " refers to, be wound onto conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) outer circumferential side and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the length of linear elastic bodies 7 of outer circumferential side one circle, the value that obtains divided by it being reeled required time in a week.

Then, as Fig. 2, shown in Figure 4, use turning arm 14 that linear elastic bodies 7 is wound in a pair of conveyer belt 12,13 continuously, utilize a pair of conveyer belt 12,13 to carry linear elastic bodies 7(to carry operation).In detail, the linear elastic bodies 7 that is supplied under elongation state in the turning arm 14 is imported in the arm 141 from introducing port 145, by axial region 142, linking part 144 with in rotation section 143, is exported from export mouth 146.Linear elastic bodies 7 from export mouth 146 derivation, along with the rotation of turning arm 14 is exported, thus, be wound onto conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) outer circumferential side and conveyer belt 13(epimere conveyer belt 13a, the hypomere conveyer belt 13b of end of upstream side) the outer circumferential side of end of upstream side.Herein, according to conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) rotation move, linear elastic bodies 7 curls are wound on conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b continuously) outer circumferential side and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) outer circumferential side.The linear elastic bodies 7 of this continuous reeling is delivered between a pair of banded sheet material 50,60 in downstream.

Herein, be wound onto a pair of

conveyer belt

12,13 linear elastic bodies 7 and extend in the direction of reporting to the leadship after accomplishing a task with the y direction, with the direction of y direction quadrature on arrange.For the linear elastic bodies 7 of will reel is modified as direction (x direction) with y direction quadrature, for example, as shown in Figure 2, under the situation that is wound with linear elastic bodies 7, at conveyer belt 12, make the rotary speed of epimere conveyer belt 12a slower than the rotary speed of hypomere conveyer belt 12b, at conveyer belt 13, make the rotary speed of hypomere conveyer belt 13b slower than the rotary speed of epimere conveyer belt 13a, thus, in the inclination that in the course of conveying of y direction, changes linear elastic bodies 7 lentamente, be delivered to a pair of banded sheet material 50, before between 60, the inclination of linear elastic bodies 7 can be modified as the direction (x direction) with y direction quadrature.

As shown in Figure 2, utilize folding guide part (not shown) etc., side is folding to the outside respectively with the both ends of the x direction of banded sheet material 50 in advance, and from conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the epimere side be supplied between a pair of niproll 171,172.In addition, as shown in Figure 2, utilize folding guide part (not shown) etc., side is folding to the outside respectively with the both ends of the x direction of banded sheet material 60 in advance, and from conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the hypomere side be supplied between a pair of niproll 171,172.In addition, before being supplied to banded sheet material 50 and/or banded sheet material 60 between a pair of niproll 171,172, face side coating adhesive within it.The coating of bonding agent both can be coated with by curl all sidedly, also can become planar or the strip coating.

Then, use niproll 171,172 between a pair of banded

sheet material

50,60, linear elastic bodies 7 to be fixed (integrated operation) with elongation state.In integrated operation, linear elastic bodies 7 being wound under a pair of

conveyer belt

12,13 the state, linear elastic bodies 7 is attached between the banded sheet material 50,60.In detail, the non-individual body that the linear elastic bodies 7 that will be reeled continuously is arranged between a pair of banded

sheet material

50,60 is supplied between a pair of niproll 171,172, between a pair of banded

sheet material

50,60 with the fixing linear elastic bodies 7 of elongation state.In manufacturing installation 11A, linear elastic bodies 7 is supplied between a pair of banded

sheet material

50,60 via niproll 171,172 under the state that is wound onto on the

conveyer belt

12,13, so, be not subjected to the influence of the cut-out of linear elastic bodies 7, can be clipped in assigned position effectively.

Then, cut off from the part (cut-out operation) of a pair of banded sheet material 50, two linear elastic bodies that the end extends out respectively 7 of width (x direction) of 60.In cutting off operation, use the cutting unit (slitting roll 183, anvil roller 184) that is arranged at a pair of conveyer belt 12,13 inside part, be wound onto a pair of conveyer belt 12,13 state incision broken string shape elastomer 7 in linear elastic bodies 7.In addition, in cutting off operation, use the means of only pressing from the top, the maintenance elongation state also cuts off the part of the linear elastic bodies 7 that extends out, and removes the part that extends out of linear elastic bodies 7.In detail, as shown in Figure 2, utilization has the slitting roll 183 and anvil roller 184 of cutter 185, be wound onto under a pair of conveyer belt 12,13 the state in linear elastic bodies 7, cut off the part of the linear elastic bodies 7 of the foreign side of square end outside two of banded sheet materials 50,60 x direction, namely be not fixed in linear elastic bodies 7 between a pair of banded sheet material 50,60 and the unnecessary part of linear elastic bodies 7.In manufacturing installation 11A, as Fig. 4, shown in Figure 6, have with the zone of the part of the periphery of the cutter support 187 of anvil roller 184 and contact, and interlock rotation presses pressure zone 191 along with the rotation of anvil roller 184, so, can press on one side the part of the linear elastic bodies 7 that extends out effectively from the top, with cutter 185 cut off linear elastic bodies 7 on one side, the not part at the two ends of linear elastic bodies 7 is alignd shortly, improve the outward appearance of the Stretchable sheet of manufacturing.In addition, utilize and press pressure zone 191, the not part that can will be cut on one side the linear elastic bodies 7 that cutter 185 cuts off by be pressed in and cutter support 187 between, be delivered to attraction portion 195,195 on one side, so, the manufacturing installation 11A that is difficult for making dirty can prevent that the not part of the linear elastic bodies 7 cut off from not sneaking in the product.

Then, utilize folding guide part (not shown) etc., again folding both ends that are folded to banded sheet material 50, the 60 x direction separately of exterior side can be manufactured between a pair of banded

sheet material

50,60 Stretchable sheet that linear elastic bodies 7 is fixedly arranged at the state with the direction elongation of reporting to the leadship after accomplishing a task with the y direction continuously." folding again " refers to, the part of will turning back expansion.Utilize well-known cut-out means (not shown), spread all over the Stretchable sheet of the band shape of x direction (off and on) cut-out manufacturing intermittently.The waistline sheet 3 that is equipped with of the interval of Qie Duaning and diaper 1 is measure-alike intermittently.Thus, can make waistline sheet 3(Stretchable sheet continuously).

Manufacture method as the diaper 1 that is equipped with waistline sheet 3, utilize well-known method, between the non-individual body of the non-individual body of surficial sheets 21, back-sheet 22 and two pieces of sheet materials 21,22 non-individual body, at throughput direction (y direction) a plurality of absorbers 23,23 are set intermittently ..., the both sides that are manufactured on the throughput direction (y direction) of the non-individual body of surficial sheets 21 in other operation arrange the non-individual body of absorbent main body 2 of the non-individual body of a plurality of elastomeric elements 25 of elongation and the sheet material 24 that stereo enclosure forms usefulness.The non-individual body of the absorbent main body 2 of manufacturing is carried at throughput direction (y direction) on one side, according in the outstanding mode of x direction two foreign sides, make the non-individual body that a pair of waistline sheet 3 is arranged at one by one the diaper 1 of each absorber 33 in the non-individual body that is included in absorbent main body 2 on one side.Herein, the throughput direction of the non-individual body of absorbent main body 2 (y direction), with make waistline sheet 3(Stretchable sheet) time throughput direction (y direction) be identical direction.Needn't make waistline sheet 3(Stretchable sheet) counter turning 90 degrees.Then, utilize well-known cut-out parts (not shown), this non-individual body is cut into the size of each diaper 1, thereby can make diaper 1.

In the cut-out operation in the present invention, preferably be the mode of homogeneous according to the length of the linear elastic bodies in the Stretchable sheet that is contained in manufacturing, cut off the part that extends out respectively from the width both ends of a pair of banded sheet material.

Below, to make the waistline sheet 3(Stretchable sheet of above-mentioned diaper 1) situation be example, with reference to accompanying drawing, preferred second embodiment of the manufacture method of Stretchable sheet of the present invention is described.

The expression of Fig. 7, Fig. 8 pattern ground is applicable to the waistline sheet 3(Stretchable sheet of second embodiment) the manufacturing installation 11B of manufacture method.

Manufacturing installation 11B for second embodiment describes the difference with manufacturing installation 11A.Do not specify part, 11A is same with manufacturing installation, suitably uses the explanation of manufacturing installation 11A.In addition, in Fig. 7, Fig. 8, the part mark identical symbol identical with Fig. 2～Fig. 6.

Manufacturing installation 11B such as Fig. 7, shown in Figure 8, comprise a pair of sheet material conveyer belt 150,160 up and down, be used for and utilize integrated unit 17 between a pair of banded

sheet material

50,60, fixedly to have the composite sheet of linear elastic bodies 7 to be delivered between a pair of slitting roll 183 and the anvil roller 184 with elongation state.

Sheet material conveyer belt 150 on the x direction, is arranged between the cutter 185,185 of slitting roll 183 as shown in Figure 8, and is set up in the rotating shaft direction and is arranged between roller 150a, the 150b on the x direction.Either party drive division at

roller

150a, 150b is equipped with the servomotor (not shown), is controlled the rotary speed of sheet material conveyer belt 150 by the control part (not shown).Roller 150a is positioned at than slitting roll 183 and more leans on the downstream on the y direction, and roller 150b is positioned at than slitting roll 183 more by upstream side in the y direction.

Sheet material conveyer belt 160 on the x direction, is arranged between the cutter 185,185 of slitting roll 183 as shown in Figure 8, and is set up in the rotating shaft direction and is arranged between roller 160a, the 160b on the x direction.Either party drive division at

roller

160a, 160b is equipped with the servomotor (not shown), controls rotary speed with 160 by the control part (not shown).Roller 160a is positioned at than anvil roller 184 in the y direction and more leans on the downstream, and roller 160b is positioned at than anvil roller 184 more by upstream side in the y direction.

Below, the method for using above-mentioned manufacturing installation 11B to make Stretchable sheet is described.In second embodiment, for not specifying part, suitably use the detailed description of relevant first embodiment.

At first, same with first embodiment, emit linear elastic bodies 7 continuously, the turning arm 14(that the linear elastic bodies 7 of emitting is imported to elastomer coiling usefulness supplies with operation), then, use turning arm 14 that linear elastic bodies 7 is wound on a pair of conveyer belt 12,13 continuously, utilize a pair of conveyer belt 12,13 to carry linear elastic bodies 7(to carry operation), next, use niproll 171,172, between a pair of banded sheet material 50,60 with the fixing integrated operation of linear elastic bodies 7(of elongation state).Next, in second embodiment, as shown in Figure 7, be set up between roller 150a, the 150b with 150 and be set up in being with between 160 between roller 160a, the 160b, be clamped in the composite sheet that linear elastic bodies 7 is fixedly arranged with elongation state between the banded sheet material 50,60 on one side, on one side this composite sheet is supplied between a pair of slitting roll 183, the anvil roller 184.Like this, be clamped in the composite sheet that linear elastic bodies 7 is fixedly arranged with elongation state between the banded sheet material 50,60 on one side, on one side this composite sheet is supplied between a pair of slitting roll 183, the anvil roller 184, use is from the pressing component of above and below, so can be with the part of the linear elastic bodies 7 that extends out, keep linear elastic bodies 7 exceeding under the situation of elongation, and can stably keep elongation state and with its cut-out (cut-out operation).

Then, in second embodiment, through the operation (with reference to Fig. 7) identical with first embodiment, can be manufactured between a pair of banded

sheet material

50,60 Stretchable sheet that the band shape of linear elastic bodies 7 is fixedly arranged continuously under the state with the direction elongation of reporting to the leadship after accomplishing a task with the y direction.

Below, to make the waistline sheet 3(Stretchable sheet of above-mentioned diaper 1) situation be example, with reference to accompanying drawing, preferred the 3rd embodiment of the manufacture method of Stretchable sheet of the present invention is described.

The expression of Fig. 9, Figure 10 pattern ground is applicable to the waistline sheet 3(Stretchable sheet of the 3rd embodiment) the manufacturing installation 11C of manufacture method.

Manufacturing installation 11C for the 3rd embodiment describes the difference with manufacturing installation 11A.Do not specify part, 11A is same with manufacturing installation, suitably uses the explanation of manufacturing installation 11A.In addition, in Fig. 9, Figure 10, the part mark identical symbol identical with Fig. 2～Fig. 6.

Manufacturing installation 11C as shown in Figure 9, x direction foreign side end and conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b at a pair of slitting roll 183 and anvil roller 184) interior all sides between and x direction foreign side end and conveyer belt 13(epimere conveyer belt 13a, the hypomere conveyer belt 13b of a pair of slitting roll 183 and anvil roller 184) interior all sides between, be equipped with in the z direction and a pair ofly up and down be with 193,194.A pair of up and down 193,194 left and right symmetricallies of being with form, so, in the following description, be with 193,194 to describe to one of them.

Be with 193 as shown in Figure 9, be set up in the rotating shaft direction and be arranged between roller 193a, the 193b of x direction.Either party drive division at

roller

193a, 193b is equipped with the servomotor (not shown), controls rotary speed with 193 by the control part (not shown).Roller 193a is positioned at than the rotating shaft center of slitting roll 183 in the y direction and more leans on the downstream, and roller 193b is positioned at than the rotating shaft center of slitting roll 183 in the y direction and more leans on upstream side.

Be with 194 as shown in Figure 9, be set up in the rotating shaft direction and be arranged between roller 194a, the 194b of x direction.Either party drive division at roller 194a, 194b is equipped with the servomotor (not shown), controls rotary speed with 194 by the control part (not shown).Roller 194a and is arranged at the position roughly the same with the rotating shaft center of anvil roller 184 between the y direction is arranged at the 193 roller 193a and roller 193b that set up.Roller 194b is positioned at than the roller 193b with 193 and more leans on upstream side on the y direction.With the lower end of the z direction of the lower end of the z direction of the 193 roller 193a that set up and roller 193b lay respectively at than with the upper end of the z direction of the upper end of the z direction of the 194 roller 194a that set up and roller 194b more on the lower.Therefore, be set up between roller 193a, the 193b with 193 and be set up in and be with 194 to be in contact with one another in a part of zone between roller 194a, the 194b, fixedly have the redundance of linear elastic bodies 7 of x direction foreign side of the composite sheet of linear elastic bodies 7 to be clamped in to be with 193 and be with between 194 with being located between the banded sheet material 50,60 with elongation state.

Below, the method for using above-mentioned manufacturing installation 11C to make Stretchable sheet is described.In the 3rd embodiment, for not specifying part, suitably use the detailed description of relevant first embodiment.

At first, same with first embodiment, emit linear elastic bodies 7 continuously, the turning arm 14(that the linear elastic bodies 7 of emitting is imported to elastomer coiling usefulness supplies with operation), then, use turning arm 14 that linear elastic bodies 7 is wound on a pair of conveyer belt 12,13 continuously, utilize a pair of conveyer belt 12,13 to carry linear elastic bodies 7(to carry operation), next, use niproll 171,172, between a pair of banded sheet material 50,60 with the fixing integrated operation of linear elastic bodies 7(of elongation state).Next, in the 3rd embodiment, as Fig. 9, shown in Figure 10, to be located on one side between the banded sheet material 50,60 with elongation state and fixedly have the redundance of linear elastic bodies 7 of x direction foreign side of the composite sheet of linear elastic bodies 7 to be clamped in to be with 193 and be with between 194, press from the above and below on one side, the redundance of this linear elastic bodies 7 is supplied between a pair of slitting roll 183, the anvil roller 184.In manufacturing installation 11C, as shown in Figure 9, can be on one side the part of the linear elastic bodies 7 that extends out be clamped in and be with 193 and be with between 194, cut off linear elastic bodies 7 with cutter 185 on one side, the not part at the two ends of linear elastic bodies 7 is alignd shortly, improve the outward appearance of the Stretchable sheet of manufacturing.In addition, utilize and to be with 193 and be with 194, the not part that is cut the linear elastic bodies 7 that cutter 185 cuts off can be delivered to attraction portion 195,195, so manufacturing installation 11C is difficult to make dirty.

Then, in the 3rd embodiment, through the operation identical with first embodiment, can be manufactured on continuously between a pair of banded

sheet material

50,60 at the Stretchable sheet that the band shape of linear elastic bodies 7 is fixedly arranged under the state of the direction elongation of reporting to the leadship after accomplishing a task with the y direction.

Below, to make the waistline sheet 3(Stretchable sheet of above-mentioned diaper 1) situation be example, with reference to accompanying drawing, preferred the 4th embodiment of the manufacture method of Stretchable sheet of the present invention is described.

The expression of Figure 11, Figure 12 pattern ground is applicable to the waistline sheet 3(Stretchable sheet of the 4th embodiment) the manufacturing installation 11D of manufacture method.

Manufacturing installation 11D for the 4th embodiment describes the difference with manufacturing installation 11A.Do not specify part, 11A is same with manufacturing installation, suitably uses the explanation of manufacturing installation 11A.In addition, in Figure 11, Figure 12, the part mark identical symbol identical with Fig. 2～Fig. 6.

The manufacturing installation 11D of the 4th embodiment is different with the manufacturing installation 11A of first embodiment, cutting unit 18 is equipped with, it with the fixing strand elastic 7 of elongation state, and cuts off the part of the linear elastic bodies 7 that extends out keeping between a pair of banded

sheet material

50,60 under the elongation state.

The cutting unit 18 of manufacturing installation 11D comprises a pair of niproll 171,172 as Figure 11, shown in Figure 12.As a pair of niproll 171,172, the columnar roller that can use metal columnar roller and soft silica gel to make.At a pair of niproll 171,172 any one drive division the servomotor (not shown) is installed, by control part (not shown) control rotary speed.The gear that drives reception and registration usefulness is installed at a pair of niproll 171,172 rotating shaft separately.Utilize this driver element (not shown), according to the speed of production of Stretchable sheet, can control the rotary speed of servomotor (not shown), i.e. wherein a side niproll 171,172 rotary speed.At this moment, use gear meshing by driving to pass on, driving force is also passed on to the opposing party's niproll 172,171, can make a pair of niproll 171,172 rotations.In order to make a pair of niproll 171,172 bearing portions between a pair of banded

sheet material

50,60, firmly fix the linear elastic bodies of elongation state, utilize the power of oil pressure, pneumatics, spring etc., each bearing portions is pressurized.

The niproll 171,172 of manufacturing installation 11D is positioned at conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) all sides and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) all sides between.The niproll 171 of upper side is in manufacturing installation 11D, and as shown in figure 12, the periphery in x direction two foreign sides is equipped with the cutter 176,176 that spread all over circumferencial direction.Cutter 176 are positioned at than the banded sheet material 50 that is folded to exterior side, the outer more outer side of square end of 60 x direction in manufacturing installation 11D.

The niproll 172 of lower side as shown in figure 12, is to compare with niproll 171 at the long roller of x direction in manufacturing installation 11D, is equipped with cutter support 178,178 in the cutter 176 that have with the niproll 171 of upper side, 176 corresponding positions.Niproll 172 more is being equipped with extension 179,179 respectively by the x direction both ends of x direction foreign side than cutter support 178,178.

Cutter support 178,178 side-lookings are toroidal, and the diameter of the x direction central authorities of the diameter of cutter support 178 and niproll 172 is roughly the same.

Extension 179 side-lookings are toroidal.

Like this, a pair of niproll 171, the 172nd of present embodiment, integrated unit 17 also is cutting unit 18.

In manufacturing installation 11D, as Figure 11, shown in Figure 12, in the extension 179 of the x of niproll 172 direction two foreign sides, each upper side of 179, be provided with linear elastic bodies 7 by pressure zone 191,191.Press pressure zone 191, the formation of 191 left and right symmetricallies, so, in the following description, one of them is described by pressure zone 191.

Press pressure zone 191 as shown in figure 11, be set up in the rotating shaft direction and be arranged between

pulley

191a, 191b, the 191c of x direction.Pulley 191a is positioned at the downstream of niproll 172, and pulley 191c is positioned at the upstream side of niproll 172, and pulley 191b is positioned at the upstream side of pulley 191c.The lower end of the lower end of the z direction of pulley 191a and the z direction of pulley 191c is positioned at than the upper end of the z direction of the extension 179 of niproll 172 more on the lower.Therefore, be set up in contacting by the part of pressure zone 191 with the periphery of the extension 179 of niproll 172 between

pulley

191a, 191b, the 191c, the interlock rotation along with the rotation of niproll 172.

Below, the method for using above-mentioned manufacturing installation 11D to make Stretchable sheet is described.In the 4th embodiment, for not specifying part, suitably use the detailed description of relevant first embodiment.

At first, same with first embodiment, emit linear elastic bodies 7 continuously, the turning arm 14(that the linear elastic bodies 7 of emitting is imported to elastomer coiling usefulness supplies with operation), then, use turning arm 14 that linear elastic bodies 7 is wound on a pair of conveyer belt 12,13 continuously, utilize a pair of conveyer belt 12,13 to carry linear elastic bodies 7(to carry operation).Next, in the 4th embodiment, between a pair of banded sheet material 50,60 with the fixing integrated operation of linear elastic bodies 7(of elongation state), and, while the part (cut-out operation) of the linear elastic bodies 7 that keeps elongation state to cut off extending out.In detail, the non-individual body that the linear elastic bodies 7 that will be reeled continuously is arranged between a pair of banded sheet material 50,60 is supplied between a pair of niproll 171,172, between a pair of banded sheet material 50,60 with the fixing linear elastic bodies 7 of elongation state.In manufacturing installation 11D, as shown in figure 12, utilization has niproll 171 and the niproll 172 of cutter 176, on one side will be in the part of the linear elastic bodies 7 that the x direction is extended, namely be not fixed in linear elastic bodies 7 between a pair of banded sheet material 50,60 and the redundance of linear elastic bodies 7 and keep elongation state on one side with its cut-out.In manufacturing installation 11D, as Figure 11, shown in Figure 12, have with the part zone of the periphery of the extension 179 of niproll 172 and contact, and related rotation presses pressure zone 191 along with the rotation of niproll 172, so, Yi Bian can be only from the top effectively by the part that is pressed in the linear elastic bodies 7 that the x direction extends, Yi Bian cut off linear elastic bodies 7 with cutter 176, and the not part at the two ends of linear elastic bodies 7 is alignd shortly, improve the outward appearance of the Stretchable sheet of manufacturing.In addition, utilize and press pressure zone 191, the not part that is cut the linear elastic bodies 7 of cutter 176 cut-outs is not delivered to attraction portion 195,195, so manufacturing installation 11D is difficult for making dirty.

Then, in the 4th embodiment, through the operation identical with first embodiment, can be manufactured on continuously between a pair of banded

sheet material

Below, to make the waistline sheet 3(Stretchable sheet of above-mentioned diaper 1) situation be example, with reference to accompanying drawing, preferred the 5th embodiment of the manufacture method of Stretchable sheet of the present invention is described.

The expression of Figure 13, Figure 14 pattern ground is applicable to the waistline sheet 3(telescopic sheet of the 5th embodiment) the manufacturing installation 11E of manufacture method.

Manufacturing installation 11E for the 5th embodiment describes the difference with manufacturing installation 11A.Do not specify part, 11A is same with manufacturing installation, suitably uses the explanation of manufacturing installation 11A.In addition, in Figure 13, Figure 14, the part mark identical symbol identical with Fig. 2～Fig. 6.

The manufacturing installation 11E of the 5th embodiment is different with the manufacturing installation 11A of first embodiment, cutting unit 18 is equipped with, its between a pair of banded

sheet material

50,60 with the fixing strand elastic 7 of elongation state, while the part of the linear elastic bodies 7 that keeps elongation state to cut off extending out.

The cutting unit 18 of manufacturing installation 11E comprises a pair of niproll 171,172 as Figure 13, shown in Figure 14.As a pair of niproll 171,172, the columnar roller that can use metal columnar roller and soft silica gel to make.At a pair of niproll 171,172 either party drive division the servomotor (not shown) is installed, controls its rotary speed by the control part (not shown).The gear that drives reception and registration usefulness is installed at a pair of niproll 171,172 rotating shaft separately.Utilize this driver element (not shown), according to the speed of production of Stretchable sheet, can control the rotary speed of servomotor (not shown), i.e. a side niproll 171,172 rotary speed.At this moment, use gear meshing by driving to pass on, driving force is also passed on to the opposing party's niproll 172,171, can make a pair of niproll 171,172 rotations.In order to make a pair of niproll 171,172 bearing portions between a pair of banded

sheet material

The niproll 171,172 of manufacturing installation 11E is positioned at conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) all sides and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) all sides between.The niproll 171 of upper side as shown in figure 14, on each periphery of two foreign sides of x direction, is equipped with the cutter 176,176 that spread all over circumferencial direction in manufacturing installation 11E.Cutter 176 are positioned at than the banded sheet material 50 that is folded to exterior side, the outer more outer side of square end of 60 x direction in manufacturing installation 11D.

The niproll 172 of lower side as shown in figure 14, is equipped with cutter support 178,178 in the cutter 176 that have with the niproll 171 of upper side, 176 corresponding positions in manufacturing installation 11E.Cutter support 178,178 side-lookings are toroidal, and the diameter of the x direction central authorities of the diameter of cutter support 178 and niproll 172 is roughly the same.

In manufacturing installation 11E, as Figure 13, shown in Figure 14, at a pair of niproll 171,172 x direction foreign side end and conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) interior all sides between, be equipped with in the z direction and a pair of be with 193,194, at a pair of niproll 171,172 x direction foreign side end and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) interior all sides between, be equipped with in the z direction and a pair ofly up and down be with 193,194.A pair of 193,194 left and right symmetricallies of being with form up and down, so in the following description, this 193,194 describes to one of them.

Be with 193 as shown in figure 13, be set up in the rotating shaft direction and be arranged between roller 193a, the 193b of x direction.Any one drive division in

roller

193a, 193b is equipped with the servomotor (not shown), controls rotary speed with 193 by the control part (not shown).Roller 193a is positioned at than the rotating shaft center of niproll 171 in the y direction and more leans on the downstream, and roller 193b is positioned at than the rotating shaft center of niproll 171 and more leans on upstream side on the y direction.

Be with 194 as shown in figure 13, be set up in the rotating shaft direction and be arranged between roller 194a, the 194b of x direction.Either party drive division at roller 194a, 194b is equipped with the servomotor (not shown), controls rotary speed with 194 by the control part (not shown).Roller 194a is arranged at between the 193 roller 193a and roller 193b that set up, and is arranged at the position roughly the same with the rotating shaft center of niproll 172 on the y direction.Roller 194b is positioned at than the roller 193b with 193 and more leans on upstream side on the y direction.With the lower end of the z direction of the lower end of the z direction of the 193 roller 193a that set up and roller 193b lay respectively at than with the upper end of the z direction of the upper end of the z direction of the 194 roller 194a that set up and roller 194b more on the lower.Therefore, be set up between roller 193a, the 193b with 193 and be set up in and be with 194 to be in contact with one another in a part of zone between roller 194a, the 194b, fixedly have the redundance of linear elastic bodies 7 of x direction foreign side of the composite sheet of linear elastic bodies 7 to be clamped in to be with 193 and be with between 194 with being located between a pair of banded sheet material 50,60 with elongation state.

Below, the method for using above-mentioned manufacturing installation 11E to make Stretchable sheet is described.In the 5th embodiment, for not specifying part, suitably use the detailed description of relevant first embodiment.

At first, same with first embodiment, emit linear elastic bodies 7 continuously, the turning arm 14(that the linear elastic bodies 7 of emitting is imported to elastomer coiling usefulness supplies with operation), then, use turning arm 14 that linear elastic bodies 7 is wound on a pair of conveyer belt 12,13 continuously, utilize a pair of conveyer belt 12,13 to carry linear elastic bodies 7(to carry operation).Next, in the 4th embodiment, between a pair of banded sheet material 50,60 with the fixing integrated operation of linear elastic bodies 7(of elongation state), and, while the part (cut-out operation) of the linear elastic bodies 7 that keeps elongation state to cut off extending out.In detail, the non-individual body that the linear elastic bodies 7 that will be reeled continuously is arranged between a pair of banded sheet material 50,60 is supplied between a pair of niproll 171,172, between a pair of banded sheet material 50,60 with the fixing linear elastic bodies 7 of elongation state.In manufacturing installation 11E, as shown in figure 14, utilization has the niproll 171 and niproll 172 of cutter 176, on one side will be in the part of the linear elastic bodies 7 that the x direction is extended, namely be not fixed in linear elastic bodies 7 between a pair of banded sheet material 50,60 and the not part of linear elastic bodies 7 and keep elongation state on one side with its cut-out.In manufacturing installation 11E, as Figure 13, shown in Figure 14, the part of the linear elastic bodies 7 that can be on one side will extend in the x direction is clamped in is with 193 and be with between 194, press from the above and below on one side, with cutter 176 cutting linear elastic bodies 7, and the not part at the two ends of linear elastic bodies 7 is alignd shortly, improve the outward appearance of the Stretchable sheet of manufacturing.In addition, utilize and to be with 193 and be with 194, the not part that is cut the linear elastic bodies 7 that cutter 176 cuts off is not delivered to attraction portion 195,195, so manufacturing installation 11E is difficult for making dirty.

Then, in the 5th embodiment, through the operation identical with first embodiment, can be manufactured between a pair of banded

sheet material

50,60 Stretchable sheet that the band shape of linear elastic bodies 7 is fixedly arranged continuously under the state that the direction of reporting to the leadship after accomplishing a task with the y direction is extended.

Below, with reference to Figure 15～Figure 18, other preferred embodiment of the manufacture method of Stretchable sheet of the present invention is described.The the 6th and the 7th embodiment of the manufacture method of Stretchable sheet of the present invention is, is manufactured between a pair of banded sheet material 50,60 manufacture method of Stretchable sheet of the Stretchable sheet 3 of the state lower fixed line shape elastomer 7 that extends at the direction x that reports to the leadship after accomplishing a task with the throughput direction of this band shape sheet material continuously.In addition, the the 6th and the 7th embodiment of the manufacture method of Stretchable sheet of the present invention comprises: use elastomer winder unit 14 that linear elastic bodies 7 is wound on a pair of conveyer belt 12,13(line conveying elongated structure body continuously), utilize this a pair of conveyer belt 12,13(line to carry and use the elongated structure body) after this linear elastic bodies 7 that its longitudinally conveying is reeled, be clipped between the aforementioned banded sheet material 50,60 it and fixing fixedly operation (the integrated operation among the present invention); After the aforementioned fixation operation, cut off the part that extends out from banded sheet material 50,60 width two ora terminalis of linear elastic bodies 7, remove this linear elastic bodies and aforementioned a pair of conveyer belt 12, the 13(line is carried and is used the elongated structure body) the first cut-out operation of reeling condition; With first cut off operation after, cut off whole or a part of second of the part 272 that extends out from aforementioned banded sheet material 50,60 width two ora terminalis of removing aforementioned linear elastic bodies 7 and cut off operation.

The Stretchable sheet of making in the 6th and the 7th embodiment for example, is used for the waistline sheet 3 of the disposable diaper 1 ' of deploying type as shown in figure 15.The length of the linear elastic bodies 7 of the disposable diaper 1 ' of deploying type shown in Figure 15 (below be also referred to as " diaper 1 ' ") in waistline sheet 3 is slightly the difference, has the structure same with diaper shown in Figure 11.For diaper 1 ', do not specify part, same with diaper 1, the above-mentioned explanation of using relevant diaper 1 equally.

Below, to make the waistline sheet 3(Stretchable sheet of above-mentioned diaper 1 ') situation be example, with reference to accompanying drawing, preferred the 6th embodiment of the manufacture method of Stretchable sheet of the present invention is described.

The ground expression of Figure 16 pattern is applicable to the waistline sheet 3(Stretchable sheet of the 6th embodiment) the manufacturing installation 11 of Stretchable sheet of manufacture method.Figure 17 pattern ground is represented, the Stretchable sheet 3A that makes in manufacturing installation shown in Figure 16 11 is carried out an example of the cutting unit of the second cut-out operation.

Manufacturing installation 11 shown in Figure 16 is devices of making continuously for the Stretchable sheet 3A of waistline sheet 3, the direction (x direction) that is included in throughput direction (y direction) quadrature of sheet material goes up a pair of

conveyer belt

12,13 that separates, the turning arm (elastomer winder unit) 14 of the elastomer coiling usefulness of winding wire-like elastomer 7 continuously.In addition, manufacturing installation 11 comprises as Figure 16 and shown in Figure 17: emit linear elastic bodies 7 continuously, linear elastic bodies 7 is directed into the elastomer feed unit 15 of turning arm 14 with elongation state; Utilize aforementioned a pair of

conveyer belt

12,13 that linear elastic bodies 7 is delivered to supply unit 16 between a pair of banded

sheet material

50,60; Use a pair of niproll 171,172, the fixing integrated unit 17 of the linear elastic bodies 7 of elongation state between a pair of banded

sheet material

50,60; With the cutting unit 218 that cuts off respectively the linear elastic bodies 7 that extends out from banded sheet material 50, two ends of width of 60.

A pair of conveyer belt 12, the 13rd in the present embodiment, line are carried the elongated structure body of usefulness, and the longitudinally of the elongated structure body that this line is carried is that two

conveyer belts

12,13 extension arrange direction (y direction).

The turning arm of a pair of

conveyer belt

12,13 in the 6th embodiment in the employed manufacturing installation 11, elastomer coiling usefulness (elastomer winder unit) 14, elastomer feed unit 15, supply unit 16, integrated unit 17 and a pair of banded

sheet material

50,60 have respectively and the same structure that is used for above-mentioned manufacturing installation 11A, suitably use the above-mentioned explanation about manufacturing installation 11A.In addition, in Figure 16～Figure 18, the part mark identical symbol identical with Fig. 2～Fig. 6.

Cutting unit 218 in the manufacturing installation 11 as shown in figure 16, the part that is equipped with the linear elastic bodies 7 that transports to contact is the diagram that the cutter 280(of sharp cutter omits the cutter 280 of conveyer belt 13 sides).Cutter 280 utilizes the supporter (not shown), is disposed at 7 position contacting of linear elastic bodies, and linear elastic bodies 7 is with 12,13 to carry and be cut device 280 and press and be cut off by being transferred.Cutting unit 218 on the y direction, be positioned at a pair of niproll 171,172, and conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) pulley 121,124 and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) pulley 131,134 between.The position that utilizes cutting unit 218 to cut off the x direction of linear elastic bodies 7 both can be niproll 171,172 and conveyer belt 12,13 between, between conveyer belt 12, the 13 interior perimembranous and peripheral part separately, it also can be the outside of conveyer belt 12,13 peripheral part separately.In addition, as cutting unit 218, not special restriction can be used the various well-known unit that can cut off linear elastic bodies 7, for example, also can use the roller cutter etc. of the cut-out roller that spreads all over the cutter that circumferencial direction is equipped with at outer peripheral face and the anvil roller that bears these cutter.In addition, also can utilize sharp light and heat to wait to cut off.

Second cutting unit 219 shown in Figure 17 is arranged at the downstream of manufacturing installation shown in Figure 16 11, the Stretchable sheet 3A that makes in manufacturing installation 11 is carried out second cut off operation.First cuts off operation as shown in figure 16, it will be for will be set up in a pair of conveyer belt 12, the linear elastic bodies 7 that is elongation state between 13, from banded sheet material 50, the part that 60 width two ora terminalis extend out, the operation of cutting off, the operation of utilizing aforesaid cutting unit 218 to carry out, and the second cut-out operation is, to produce by the first cut-out operation releasing elongation state, Stretchable sheet 3A from banded sheet material 50, the part 272 that 60 width two ora terminalis extend out, whole or a part of operation of removing of 272 utilizes second cutting unit 219 to carry out.Cut off the aforementioned part 272 of removing in the operation second and under contraction state, be cut off usually, but also can under elongation state, be cut off.

Second cutting unit 219 comprises slitting roll 293 and anvil roller 294 as shown in figure 17.Upstream side and downstream at slitting roll 293 and anvil roller 294, the supply unit (not shown) of conveying roller and transport tape etc. is set, the Stretchable sheet 3A of manufacturing in the manufacturing installation of Figure 16 is carried by this supply unit, is fed between slitting roll 293 and the anvil roller 294.

Slitting roll 293 is provided in two cutter 295,295 that separate on the axial length direction as shown in figure 17.Cutter 295 spread all over the whole periphery of slitting roll 293 respectively and form, two cutter 295,295 be the slightly wide width of width than the part of the sheet material among the Stretchable sheet 3A that carries (banded sheet material 50,60) at interval.

Anvil roller 294 has as shown in figure 17 across the columned outer peripheral face between two cutter 295,295 of slitting roll 293.

Near second cutting unit 219, as shown in figure 17, be equipped with attraction portion 296,296, be used for attracting being used as the not part 272 of a pair of slitting roll 293 of second cutting unit 219 and anvil roller linear elastic bodies 7 294 that cut off, that extend out at a pair of banded

sheet material

50,60 width two ends.Attraction portion 296 is configured to the part near the outer peripheral face of cutter 295 contact anvil rollers 294.

Below, the method for using manufacturing Stretchable sheets such as above-mentioned manufacturing installation 11 is described.

At first, as shown in Figure 3, emit linear elastic bodies 7 continuously, the banded elastomer 7 of emitting is imported to turning arm 14 as the elastomer winder unit under elongation state.

In detail, use and emit roller 152, emit linear elastic bodies 7 continuously from the bobbin 70 that is wound with linear elastic bodies 7.In the present embodiment, bobbin 70 does not rotate, but also can rotate.When emitting, the output that detects according to the tension force of 153 pairs of linear elastic bodies 7 of tension draftomter, the control part (not shown) that utilizes manufacturing installation 11 to be equipped with is adjusted and is rolled out the rotary speed of roller 152 and the braking of tensioner 151, and tension force is according to the rules emitted linear elastic bodies 7 from bobbin 70.

In the present embodiment, this linear elastic bodies 7 is imported to turning arm 14, but when importing, utilizes aforesaid feed roller 156, will import turning arm 14(elastomer winder unit) the speed of linear elastic bodies 7 be adjusted into certain speed and importing.Boot speed is to be wound on the corresponding speed of winding speed on a pair of

conveyer belt

12,13 with making it.

As Figure 16, shown in Figure 3, use turning arm 14 that the linear elastic bodies 7 of elongation state is wound on a pair of conveyer belt 12,13 continuously, use a pair of conveyer belt 12,13 linear elastic bodies 7 that will be reeled continuously between a pair of banded sheet material 50,60, to carry.In detail, the linear elastic bodies 7 that is supplied to turning arm 14 under elongation state is directed in the arm 141 from introducing port 145, by axial region 142, linking part 144 with in rotation section 143, derives from export mouth 146.For the linear elastic bodies 7 that derives from export mouth 146, rotation by turning arm 14 is derived simultaneously, thus, be wound onto conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) outer circumferential side and conveyer belt 13(epimere conveyer belt 13a, the hypomere conveyer belt 13b of end of upstream side) the outer circumferential side of end of upstream side.Herein, according to conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) rotation move, linear elastic bodies 7 curls are wound on conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b continuously) outer circumferential side and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) outer circumferential side.The linear elastic bodies 7 of this continuous reeling is delivered between a pair of banded sheet material 50,60 in downstream.

Herein, be wound onto a pair of

conveyer belt

12,13 linear elastic bodies 7 and extend in the direction of reporting to the leadship after accomplishing a task with the y direction, be not arranged on the direction with y direction quadrature.For the linear elastic bodies 7 of will reel is modified as direction (x direction) with y direction quadrature, for example, as shown in figure 16, under the situation that is wound with linear elastic bodies 7, in conveyer belt 12, make the rotary speed of epimere conveyer belt 12a slower than the rotary speed of hypomere conveyer belt 12b, in conveyer belt 13, make the rotary speed of hypomere conveyer belt 13b slower than the rotary speed of epimere conveyer belt 13a, thus, in the inclination that in the course of conveying of y direction, changes linear elastic bodies 7 lentamente, be delivered to a pair of banded sheet material 50, before between 60, the inclination of linear elastic bodies 7 can be modified as the direction (x direction) with y direction quadrature.

As shown in figure 16, utilize folding guide part (SAILOR) (not shown) etc., in advance the both sides (two ends of x direction) of the longitudinally of banded sheet material 50 are folded to exterior side (the non-opposite face side that the face that discord engages with banded sheet material 60 is not relative) respectively, from conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the epimere side, supply between a pair of niproll 171,172.In addition, as shown in figure 16, utilize folding guide part (not shown) etc., in advance two sidepieces (two ends of x direction) of the longitudinally of banded sheet material 60 are folded to exterior side (non-opposite face one side that the banded sheet material 50 of getting along well is relative) respectively, from conveyer belt 12(epimere conveyer belt 12a, hypomere conveyer belt 12b) and conveyer belt 13(epimere conveyer belt 13a, hypomere conveyer belt 13b) the hypomere side, supply between a pair of niproll 171,172.In addition, before banded sheet material 50 and/or banded sheet material 60 are fed between a pair of niproll 171,172, face side coating adhesive within it.The coating of bonding agent both can be coated with by curl all sidedly, also can not stay coating with gap.

Then, use niproll 171,172, between a pair of banded

sheet material

50,60, linear elastic bodies 7 is fixed with elongation state.In detail, the non-individual body that the linear elastic bodies 7 that will be reeled continuously is arranged between a pair of banded

sheet material

50,60 is supplied between a pair of niproll 171,172, and linear elastic bodies 7 is fixed between a pair of banded

sheet material

50,60 with elongation state.As discussed above, linear elastic bodies 7 is wound on a pair of

conveyer belt

12,13 that separates on the direction (x direction) with

sheet material

50,60 throughput direction quadrature, after this linear elastic bodies 7 of utilizing a pair of

conveyer belt

12,13 to carry to reel, like this, use niproll 171,172, between

banded sheet material

50,60, clip the fixing operation of linear elastic bodies 7 and be the fixedly operation (integrated operation) in the present embodiment.

Next, cut off respectively the linear elastic bodies 7(first that extends out from a pair of banded

sheet material

50,60 width (x direction) two ora terminalis with aforesaid cutter 180 and cut off operation).This first cut-out operation is, cut-out is set up between a pair of

conveyer belt

12,13 and is the linear elastic bodies 7 of elongation state, according to this cut-out, remove linear elastic bodies and be wound in a pair of

conveyer belt

12,13 state, obtain the Stretchable sheet 3A that linear elastic bodies 7 extends out from

banded sheet material

50,60 width two ora terminalis respectively.The part that banded sheet material 50 from this

Stretchable sheet

3A, 60 width two ora terminalis extend out is the state (nature) of contraction.

In addition, in the present embodiment, turned back in the both sides of

banded sheet material

50,60 longitudinally, and width two ora terminalis of banded sheet material are by the ora terminalis of the state of turning back.

Then, this Stretchable sheet 3A is delivered to second cutting unit 219, utilize second cutting unit 219, constriction 272 linear elastic bodies 7 among this Stretchable sheet 3A, that extend out from

banded sheet material

50,60 width two ora terminalis, a whole or part of 272 are cut off removed.

Second cutting off in the operation in the present embodiment as shown in figure 17, for any one linear elastic bodies 7 on the y direction of Stretchable sheet 3A, also only cut off the part that extends out from

banded sheet material

50,60 width two ora terminalis.In detail, as shown in figure 17, utilization has the slitting roll 293 and anvil roller 294 of cutter 295, cuts off the part of the more outer side's of square end linear elastic bodies 7 outside than banded sheet material 50,60 x direction two, namely is not fixed in linear elastic bodies 7 between a pair of banded

sheet material

50,60 and the unnecessary part of linear elastic bodies 7.

This cut-out is that except linear elastic bodies 7, the sheet material part (banded sheet material 50,60) among the Stretchable sheet 3A is also carried out under the state that width shrinks because of linear elastic bodies 7.But, also can under the situation of the elongation state that keeps banded

sheet material

50,60 parts, it be delivered to second cutting unit, under this state, cut off the constriction 272 that extends out from

banded sheet material

50,60 width two ora terminalis.

According to this second cut-out operation, the constriction 272 that cut-out extends out from

banded sheet material

50,60 width two ora terminalis, thus, can length and cut off the not part at the both ends of removing linear elastic bodies 7, thus, improve the outward appearance of the Stretchable sheet of manufacturing.In addition, by attraction portion 296,296 is set, can prevent from entering in the Stretchable sheet 3 that to make and being attached to the problem that roller 293,294 etc. causes because cutting off cut off machine that linear elastic bodies 7 produces.

Cut off in the operation second, viewpoint from the degraded appearance that prevents Stretchable sheet 3A, preferably the length L 1 of the part that extends out according to width two ora terminalis from banded sheet material is 0～5mm, the mode of 0～3mm is particularly cut off the linear elastic bodies 7 of the Stretchable sheet 3A after the fixing operation.Also can with banded

sheet material

50,60 width two ora terminalis are big cuts off linear elastic bodies 7 to identical position, remove the part that extends out from this two ora terminalis in the linear elastic bodies 7 fully.

Next, utilize folding guide part (SAILOR) (not shown) etc., two ends of

banded sheet material

50,60 width separately (two ends of x direction) that are folded to exterior side are launched to width foreign side, utilize bonding agent and well-known engagement means such as hot sticky that the part of each expansion is engaged with each other.

Thus, can be manufactured on continuously between a pair of banded

sheet material

50,60 that the Stretchable sheet of linear elastic bodies 7 is fixedly arranged under the state of the direction elongation of reporting to the leadship after accomplishing a task with the y direction.

In addition, utilize well-known cutting unit (not shown), the Stretchable sheet that cuts off the band shape of manufacturing along the x direction intermittently.The waistline sheet 3 that is equipped with of the interval of Qie Duaning and diaper 1 ' is measure-alike intermittently.Thus, can make waistline sheet 3(Stretchable sheet continuously).

According to the 6th embodiment, remove linear elastic bodies 7 and a pair of

conveyer belt

12,13 reeling condition first cut off operation after, in other different therewith operations, the constriction 272 that width two ora terminalis of the banded sheet material of cut-out from linear elastic bodies 7 extend out, 272 whole or a part of, therefore, can remove the unsettled part of the linear elastic bodies that extends out from

banded sheet material

50,60 width two ora terminalis effectively, make rakish Stretchable sheet 3 effectively.

In addition, linear elastic bodies 7 is wound in a pair of

conveyer belt

12,13 state and when cutting off when being used for removing, in order to excise the part that extends out from width two ora terminalis of banded sheet material fully, after cutting off a linear elastic bodies, do not shrink in order to make next linear elastic bodies 7, also must cut off while keeping, it is complicated that the structure of cutting unit becomes.In contrast, as present embodiment, with releasing be wound in a pair of

conveyer belt

12,13 reeling condition and cut-out and the part length alignment of will not want of the linear elastic bodies of carrying out and cut off the cut-out of carrying out, separation procedure is carried out, thus, the manufacturing installation that can prevent Stretchable sheet is complicated, can make the rakish Stretchable sheet of having removed the part of not wanting effectively.

In addition, in the 6th embodiment, use is turned back two ends of width (two ends of x direction) and is formed in a narrow margin banded

sheet material

50,60 to exterior side (non-opposite face one side) separately, after carrying out aforesaid fixedly operation, the first cut-out operation and the second cut-out operation, launch this band

shape sheet material

50,60 part of turning back separately, a pair of deploying

portion

50A, 60A that should the band shape sheet material be engaged with each other, thus, as shown in figure 17, obtain the Stretchable sheet 3 that linear elastic bodies 7 does not extend out from the two ends of banded sheet material.Therefore, cut off in the operation second, even the slightly residual mode of part that extends out according to width two ora terminalis from banded sheet material is cut off the constriction 272 of linear elastic bodies 7, in the Stretchable sheet 3 that finally obtains, this extension can be not clearly yet.

Manufacture method as the diaper 1 ' that is equipped with waistline sheet 3, according to well-known method, between the non-individual body of the non-individual body of surficial sheets 21, back-sheet 22 and two pieces of sheet materials 21,22 non-individual body, along throughput direction (y direction) a plurality of

absorbers

23,23 are set intermittently ..., the both sides that are manufactured on the throughput direction (y direction) of the non-individual body of surficial sheets 21 in other operation arrange the non-individual body of absorbent main body 2 of the non-individual body of many elastomeric elements 25 of elongation and the sheet material 24 that stereo enclosure forms usefulness.

The non-individual body of the absorbent main body 2 of manufacturing is carried to throughput direction (y direction), and according in the outstanding mode of x direction two foreign sides, make the non-individual body that a pair of waistline sheet 3 is arranged at one by one the diaper 1 ' in each absorber 23 in the non-individual body that is included in absorbent main body 2.Form waistline sheet 3 from the Stretchable sheet of making according to aforesaid way, so, make it not have linear elastic bodies 7 at the junction surface with absorbent main body 2 easily, also have the advantage that sealing is enhanced.Herein, the throughput direction of the non-individual body of absorbent main body 2 (y direction), with make waistline sheet 3(Stretchable sheet) time throughput direction (y direction) be identical direction.Needn't make waistline sheet 3(Stretchable sheet) counter turning 90 degrees.Then, utilize well-known cutting unit (not shown), this non-individual body is cut into the size of each diaper 1 ', thereby can make diaper 1 '.

Below, the 7th embodiment of the present invention is described.For the 7th embodiment, the difference of main explanation and above-mentioned the 6th embodiment for identical point, then marks identical symbol and omits explanation.Do not specify part, can be identical with above-mentioned embodiment.

In the 7th embodiment, as shown in figure 18, as second cutting unit, use to be equipped with clipper (shear cutter) 219A of the cutter of two pieces of sliding-contacts that a side wherein or both sides move.Clipper 219A is arranged at the both sides of Stretchable sheet 3A, as trimmer (hedgecutte), clips linear elastic bodies 7 between two cuttves respectively, this linear elastic bodies 7 is applied shearing force it is cut off.In the 7th embodiment, also can obtain the effect same with the 6th embodiment.

The manufacture method of Stretchable sheet of the present invention is not limited to the manufacture method of above-mentioned the first, second, third, fourth, the 5th, the 6th, the 7th embodiment fully, can appropriate change.

For example, be used for first, second, manufacturing

installation

11A, 11B, the 11D of the manufacture method of the 4th embodiment, as the parts of pressing from above-below direction, be equipped with and press pressure zone 191, in manufacturing installation 11C, the 11E of the manufacture method that is used for the 3rd, the 5th embodiment, as the parts of pressing from above-below direction, be equipped with and a pair ofly up and down be with 193,194, but also can replace them, be equipped with the parts of together pressing with

conveyer belt

12,13.

As the parts of together pressing with

conveyer belt

12,13, be set forth in

conveyer belt

12,13 and contact the roller that rotates on one side with

conveyer belt

12,13 outer circumferential side separately on one side.The roller left and right symmetrically that is arranged at

conveyer belt

12,13 outer circumferential side separately forms, so, in the following description, one of them roller is described.

Particularly, in the manufacturing installation 11F of the manufacture method that is applicable to the 8th embodiment shown in Figure 19, be equipped with roller 112a, the 112b that rotates because of the rotation of epimere conveyer belt 12a at the outer circumferential side of epimere conveyer belt 12a, be equipped with roller 122a, the 122b that rotates because of the rotation of hypomere conveyer belt 12b at the outer circumferential side of hypomere conveyer belt 12b.Roller 112a, 112b, 122a, 122b rotating shaft direction separately is arranged on the z direction.The roller 112a of epimere conveyer belt 12a side is on the y direction, be arranged at than the rotating shaft center of the slitting roll 183 of manufacturing installation 11A, 11B, 11C or with the rotating shaft center of the niproll 171 of manufacturing installation 11D, 11E more by upstream side, roller 112b is arranged at than roller 112a more by upstream side on the y direction.In addition, the roller 122a of hypomere conveyer belt 12b side is on the y direction, be arranged at the position roughly the same with the rotating shaft center of the niproll 171 of the rotating shaft center of the slitting roll 183 of manufacturing installation 11A, 11B, 11C or manufacturing installation 11D, 11E, roller 122b is arranged at the roller 112a of epimere conveyer belt 12a one side and the position between the 112b on the y direction.

In manufacturing installation 11F, as shown in figure 19, at epimere conveyer belt 12a two

roller

112a, 112b are set, also can be the mode that only is equipped with one of them, perhaps be equipped with the mode more than two roller.Equally, at hypomere conveyer belt 12b two

roller

122a, 122b are set, but also can are the mode that only is equipped with one of them, perhaps be equipped with the mode more than two roller.

According to the manufacture method of the 8th embodiment that uses manufacturing installation 11F, in cutting off operation, use the parts of together pressing with

conveyer belt

12,13, can be with the part of the linear elastic bodies that extends out in the cut-out that keeps elongation state.Particularly, be wound onto the linear elastic bodies 7 of the outer circumferential side of epimere conveyer belt 12a on one side with two

roller

112a, 112b maintenances, be wound onto the linear elastic bodies 7 of the outer circumferential side of hypomere conveyer belt 12b on one side with two

roller

122a, 122b maintenances, and in

manufacturing installation

11A, 11B, 11C, the redundance of linear elastic bodies 7 is supplied with between slitting roll 183, the anvil roller 184, in

manufacturing installation

11D, 11E, supply with between the niproll 171,172, can keep under the elongation state its cut-out.

In addition, as the parts of together pressing with

conveyer belt

12,13, be set forth in

conveyer belt

12,13 outer circumferential side separately and contact the band that rotates on one side with

conveyer belt

12,13 on one side.The band left and right symmetrically that is arranged at

conveyer belt

12,13 outer circumferential side separately forms, so, in the following description, one of them band is illustrated.

Particularly, in the manufacturing installation 11G of the manufacture method that is applicable to the 9th embodiment shown in Figure 20, outer circumferential side outfit at epimere conveyer belt 12a is with 114 because of what the rotation of epimere conveyer belt 12a was rotated, is with 115 in the outer circumferential side outfit of hypomere conveyer belt 12b because of what the rotation of hypomere conveyer belt 12b was rotated.Being set up in the rotating shaft direction with 114 is arranged between roller 114a, the 114b on the z direction.The roller 114a of epimere conveyer belt 12a side is on the y direction, be arranged at than the rotating shaft center of the slitting roll 183 of manufacturing installation 11A, 11B, 11C or than the rotating shaft center of the niproll 171 of manufacturing installation 11D, 11E more by upstream side, roller 114b is arranged at than roller 114a more by upstream side on the y direction.The roller 115a of hypomere conveyer belt 12b side is on the y direction, be arranged at the position roughly the same with the rotating shaft center of the niproll 171 of the rotating shaft center of the slitting roll 183 of manufacturing installation 11A, 11B, 11C or manufacturing installation 11D, 11E, roller 115b is arranged at the roller 114a of epimere conveyer belt 12a side and the position between the 114b on the y direction.Therefore, be arranged at hypomere conveyer belt 12b side with 115 be arranged at epimere conveyer belt 12a side be with 114 to compare, on the y direction, be arranged at slightly near the downstream.From with 114 viewpoints of linear elastic bodies 7 that keep being wound onto the outer circumferential side of epimere conveyer belt 12a effectively, set up the power of utilizing oil pressure, pneumatics, spring etc. with the bearing portions of 114 roller 114a, 114b, pressurize at separately bearing portions.For setting up with the bearing portions of 115 roller 115a, 115b too.

According to the manufacture method of the 9th embodiment that uses manufacturing installation 11G, in cutting off operation, use the parts of together pressing with

conveyer belt

12,13, can be in the part that keeps cutting off under the elongation state linear elastic bodies that extends out.Particularly, on one side with the linear elastic bodies 7 that is wound onto the outer circumferential side of epimere conveyer belt 12a with 114 maintenances, on one side with the linear elastic bodies 7 that is wound onto the outer circumferential side of hypomere conveyer belt 12b with 115 maintenances, on one side in

manufacturing installation

11A, 11B, 11C, the redundance of linear elastic bodies 7 is supplied with between a pair of slitting roll 183, the anvil roller 184, in

manufacturing installation

In addition, in the manufacture method of above-mentioned the first, second, third, fourth, the 5th, the 8th, the 9th embodiment, between a pair of niproll 171,172, importing is turned back two ends of width and is formed in a narrow margin banded sheet material to exterior side separately, fixing linear elastic bodies between this band shape sheet material, but also can be between a pair of niproll 171,172, import the banded sheet material of not turned back in two ends of width, fixing linear elastic bodies between this band shape sheet material.

The sheet material that the banded sheet material of the 6th or the 7th embodiment also can use two sidepieces (two ends of the width of sheet material) of longitudinally not turned back.In the case, width two ora terminalis of banded sheet material are identical with width two ora terminalis of Stretchable sheet.In addition, under the situation of turning back, not only can be the width end of the sheet material of a side, also can only be the end of a banded sheet material.In addition, linear elastic bodies 7 becomes direction (x direction) with y direction quadrature with its tilt correction, but also can not revise but keep being wound on the angle on the conveyer belt 12 and be fixed in a pair of banded

sheet material

50,60.

In addition, as the elastomer winder unit, also can use following unit, have: partly have at rotating shaft linear elastic bodies introduction part disk and at this disk arm outstanding to the downstream of y direction, this

arm conveyer belt

12,13 around the rotation, with linear elastic bodies be wound on

conveyer belt

12,13 around.In addition, also can use winder unit that patent documentation 1 and 2 puts down in writing etc.

In addition, as conveyer belt, be not a pair of conveyer belt, also can use the transport tape of in WO2005/060910, showing.In the case, employed transport tape also can be one.In addition, carry the elongated structure body of usefulness as line, that can use also that Fig. 4～Fig. 6 of TOHKEMY 2002-192641 communique puts down in writing is provided with spiral fluted line bearing parts.

In addition, as second cutting unit that cuts off in the operation of the second and the 7th embodiment etc., also can adopt longitudinal knife and the clipper of other mode.In addition, also can use dead knife and rotating knife.In addition, as first cutting unit that cuts off operation, also can use with second and cut off the same cutting unit of operation.

Manufacturing method according to the invention and the Stretchable sheet made, the Stretchable sheet of for example making in the manufacture method of first～the 9th embodiment, except the waistline sheet of the disposable diaper of deploying type, also can be used for the hangers portion, cleaning sheet, bandage of the waist portion of the disposable diaper of deploying type or Briefs type, the physiological napkin of Briefs type, disposable underwear, disposable breathing mask etc.

In addition, waistline sheet 3 also can have: by at the fixing fixed cell that constitutes of the hook part of VELCRO (hook-and-loop fastener) and fixed cell that the holding section that forms constitutes and the adhesive portion that formed by coating adhesive of the one side of Stretchable sheet.These fixed cells for example are fixed on outside and the sheet material 4 of the A of veutro portion one side of absorbent main body 2 when dressing diaper.

In addition, the explanation clipped in the above-mentioned embodiment and only the condition that has of embodiment can suitably be applied to other embodiment respectively, in addition, the condition in each embodiment is mutual alternative between embodiment suitably.

About above-mentioned embodiment, the present invention also shows following manufacture method or the manufacture method of absorbent commodity.

(1) a kind of manufacture method of Stretchable sheet, this manufacture method is made Stretchable sheet continuously, described Stretchable sheet with linear elastic bodies with and the state that extends of the throughput direction of the banded sheet material direction of reporting to the leadship after accomplishing a task be fixed between a pair of described banded sheet material, comprise: supply with operation, it emits described linear elastic bodies continuously, and this linear elastic bodies of emitting is imported to the elastomer winder unit; Carry operation, it is with this elastomer winder unit, this linear elastic bodies is wound in continuously at a pair of conveyer belt that separates with the direction of the throughput direction quadrature of sheet material, and utilizes a pair of this conveying to bring this linear elastic bodies of conveying; Integrated operation, it is fixed in this linear elastic bodies of carrying between the described banded sheet material; With cut off operation, its will be from the both ends of the width of a pair of described banded sheet material respectively the part of extended described linear elastic bodies cut off.

(2) manufacture method of aforementioned (1) described Stretchable sheet in described cut-out operation, with the part maintenance elongation state ground cut-out of extended described linear elastic bodies, is removed the extended part of this linear elastic bodies.

(3) manufacture method of aforementioned (2) described Stretchable sheet, in described integrated operation, with described linear elastic bodies to be wound in the state of a pair of described conveyer belt, this linear elastic bodies is attached between the described banded sheet material, in described cut-out operation, utilization is arranged at the cutting unit of the inside part of a pair of described conveyer belt, is wound in described linear elastic bodies under the state of a pair of described conveyer belt this linear elastic bodies is cut off.

(4) manufacture method of aforementioned (2) or (3) described Stretchable sheet, in described integrated operation, use niproll that described linear elastic bodies is fixed between a pair of described banded sheet material with elongation state, afterwards, in described cut-out operation, with part maintenance elongation state and the cut-out of extended described linear elastic bodies.

(5) manufacture method of aforementioned (2) or (3) described Stretchable sheet, in described integrated operation, with described linear elastic bodies with elongation state be fixed in a pair of should the band shape sheet material between, and in described cut-out operation, with the part maintenance elongation state ground cut-out of extended described linear elastic bodies.

(6) manufacture method of each described Stretchable sheet in aforementioned (2)～(5) in described cut-out operation, is pressed the unit with the part maintenance elongation state ground cut-out of extended described linear elastic bodies from last direction and/or following direction use.

(7) manufacture method of each described Stretchable sheet in aforementioned (2)～(5) in described cut-out operation, is used described conveyer belt in the lump and is pressed the unit, keeps elongation state ground to cut off extended described linear elastic bodies.

(8) manufacture method of each described Stretchable sheet in aforementioned (2)～(7), as a pair of described banded sheet material, the banded sheet material in a narrow margin that use is turned back the width both ends to form to exterior side separately, after described integrated operation and described cut-out operation are carried out, this band shape sheet material part of turning back is separately launched.

(9) manufacture method of aforementioned (1) described Stretchable sheet, as described cut-out operation, comprise that first cuts off operation, it is after described integrated operation, the extended part of width two ora terminalis from described banded sheet material of described linear elastic bodies is cut off, remove this linear elastic bodies and be wound in the state that described line is carried the elongated structure body of usefulness, comprise that also second cuts off operation, it carries out after first cuts off operation, with described linear elastic bodies from the whole or part cut-out of the extended part of width two ora terminalis of described banded sheet material and remove.

(10) manufacture method of aforementioned (9) described Stretchable sheet is cut off in the operation second, only the extended part of width two ora terminalis from described banded sheet material of described linear elastic bodies is cut off.

(11) manufacture method of aforementioned (10) described Stretchable sheet is cut off in the operation second, cuts off described linear elastic bodies according to the mode that the length from the extended part of width two ora terminalis of described banded sheet material becomes below the 5mm.

(12) manufacture method of aforementioned (9) described Stretchable sheet, cut off in the operation second, the inside part of width two ora terminalis of described banded sheet material is cut off, the part of this band shape sheet material and the described constriction of described linear elastic bodies are removed together.

(13) manufacture method of aforementioned (12) described Stretchable sheet with the position of described banded sheet cutting is: width two ora terminalis distance separately that certainly should the band shape sheet material is 0～20% position of the overall with of this band shape sheet material.

(14) manufacture method of each described Stretchable sheet in aforementioned (9)～(13), as a pair of described banded sheet material, the banded sheet material in a narrow margin that use is turned back the width both ends to form to exterior side separately, after described integrated operation, the described first cut-out operation and the described second cut-out operation are carried out, this band shape sheet material part of turning back is separately launched, and a pair of deploying portion that should the band shape sheet material is engaged with each other.

(15) manufacture method of each described Stretchable sheet in aforementioned (1)～(14), in described cut-out operation, the length of the linear elastic bodies that comprises according to the Stretchable sheet of making becomes the mode of homogeneous, will cut off from the respectively extended part in the width both ends of a pair of described banded sheet material.

(16) manufacture method of aforementioned (6) or (7) described Stretchable sheet is used the unit of will the part of extended described linear elastic bodies pressing of pressing, with the attraction portion that partly is not delivered to of cut linear elastic bodies.

(17) a kind of manufacture method of disposable diaper, this disposable diaper has: have surficial sheets, back-sheet and be arranged at the absorbent main body of the absorber between this two sheet material; With the waistline sheet that comprises Stretchable sheet, the manufacture method of described disposable diaper comprises: the operation of making described Stretchable sheet by the manufacture method of each the described Stretchable sheet in aforementioned (1)～(16).

(18) a kind of manufacture method of disposable diaper, it will make disposable diaper as the waistline sheet by the resulting Stretchable sheet of manufacture method of each the described Stretchable sheet in aforementioned (1)～(16), this disposable diaper has: have surficial sheets, back-sheet and be arranged at the absorbent main body of the absorber between this two sheet material, the manufacture method of this disposable diaper comprises: the non-individual body of making surficial sheets, the operation of the non-individual body of back-sheet and the non-individual body of absorbent main body, wherein, the non-individual body of described absorbent main body has at throughput direction and is arranged at a plurality of absorbers between the non-individual body of described surficial sheets and this two sheet material of described back-sheet intermittently; Carry the non-individual body of this absorbent main body at throughput direction on one side, on one side according to the mode in two outsides that are projected into the direction of reporting to the leadship after accomplishing a task with this throughput direction, the operation that a pair of described waistline sheet is configured one by one to the absorber of the non-individual body that is contained in absorbent main body; Cut into the operation of the size of each diaper with the non-individual body of the absorbent main body that will be provided with the waistline sheet.

Industrial utilizability

According to the manufacture method of Stretchable sheet of the present invention, can length and cut off the not part at the two ends of linear elastic bodies, the outward appearance of the Stretchable sheet of manufacturing is improved.

Manufacture method according to Stretchable sheet of the present invention, a kind of manufacture method of Stretchable sheet is provided, it is the method that is manufactured on continuously between a pair of banded sheet material in that the elastomeric Stretchable sheet of wire is fixedly arranged under the state of the direction elongation of reporting to the leadship after accomplishing a task with the throughput direction of this band shape sheet material, can remove the unsettled part of the linear elastic bodies that extends out from the ora terminalis of the width of banded sheet material effectively, thereby make rakish Stretchable sheet effectively.In addition, the manufacture method of Stretchable sheet of the present invention can be implemented by more easy equipment.

Claims

1. the manufacture method of a Stretchable sheet, this manufacture method is made Stretchable sheet continuously, described Stretchable sheet with linear elastic bodies with and the state that extends of the throughput direction of the banded sheet material direction of reporting to the leadship after accomplishing a task be fixed between a pair of described banded sheet material, the manufacture method of described Stretchable sheet is characterised in that, comprising:

Supply with operation, it emits described linear elastic bodies continuously, and this linear elastic bodies of emitting is imported to the elastomer winder unit;

Carry operation, it is with this elastomer winder unit, this linear elastic bodies is wound in continuously at a pair of conveyer belt that separates with the direction of the throughput direction quadrature of sheet material, and utilizes a pair of this conveying to bring this linear elastic bodies of conveying;

Integrated operation, it is fixed in this linear elastic bodies of carrying between the described banded sheet material; With

Cut off operation, its will be from the both ends of the width of a pair of described banded sheet material respectively the part of extended described linear elastic bodies cut off.

2. the manufacture method of Stretchable sheet as claimed in claim 1 is characterized in that:

In described cut-out operation, with the part maintenance elongation state ground cut-out of extended described linear elastic bodies, the extended part of this linear elastic bodies is removed.

3. the manufacture method of Stretchable sheet as claimed in claim 2 is characterized in that:

In described integrated operation, with described linear elastic bodies to be wound in the state of a pair of described conveyer belt, this linear elastic bodies is attached between the described banded sheet material,

In described cut-out operation, utilize the cutting unit of the inside part be arranged at a pair of described conveyer belt, be wound in described linear elastic bodies under the state of a pair of described conveyer belt this linear elastic bodies is cut off.

4. as the manufacture method of claim 2 or 3 described Stretchable sheets, it is characterized in that:

In described integrated operation, use niproll that described linear elastic bodies is fixed between a pair of described banded sheet material with elongation state, afterwards, in described cut-out operation, with part maintenance elongation state and the cut-out of extended described linear elastic bodies.

5. as the manufacture method of claim 2 or 3 described Stretchable sheets, it is characterized in that:

In described integrated operation, with described linear elastic bodies with elongation state be fixed in a pair of should the band shape sheet material between, and in described cut-out operation, the part of extended described linear elastic bodies is kept the cut-out of elongation state ground.

6. as the manufacture method of each the described Stretchable sheet in the claim 2～5, it is characterized in that:

In described cut-out operation, press the unit with the part maintenance elongation state ground cut-out of extended described linear elastic bodies from last direction and/or following direction use.

7. as the manufacture method of each the described Stretchable sheet in the claim 2～5, it is characterized in that:

In described cut-out operation, use described conveyer belt in the lump and press the unit, keep elongation state ground to cut off extended described linear elastic bodies.

8. as the manufacture method of each the described Stretchable sheet in the claim 2～7, it is characterized in that:

As a pair of described banded sheet material, use the banded sheet material of being turned back and form to exterior side separately in the width both ends in a narrow margin, after described integrated operation and described cut-out operation are carried out, this band shape sheet material part of turning back is separately launched.

9. the manufacture method of Stretchable sheet as claimed in claim 1 is characterized in that:

As described cut-out operation,

Comprise that first cuts off operation, it cuts off the extended part of width two ora terminalis from described banded sheet material of described linear elastic bodies after described integrated operation, and remove this linear elastic bodies and be wound in the state that described line is carried the elongated structure body of usefulness,

Comprise that also second cuts off operation, it carries out after first cuts off operation, with described linear elastic bodies from the whole or part cut-out of the extended part of width two ora terminalis of described banded sheet material and remove.

10. the manufacture method of Stretchable sheet as claimed in claim 9 is characterized in that:

Cut off in the operation second, only the extended part of width two ora terminalis from described banded sheet material of described linear elastic bodies is cut off.

11. the manufacture method of Stretchable sheet as claimed in claim 10 is characterized in that:

Cut off in the operation second, cut off described linear elastic bodies according to the mode that the length from the extended part of width two ora terminalis of described banded sheet material becomes below the 5mm.

12. the manufacture method of Stretchable sheet as claimed in claim 9 is characterized in that:

Cut off in the operation second, the inside part of width two ora terminalis of described banded sheet material is cut off, the part of this band shape sheet material and the described constriction of described linear elastic bodies are removed together.

13. the manufacture method of Stretchable sheet as claimed in claim 12 is characterized in that:

With the position of described banded sheet cutting be: width two ora terminalis distance separately that certainly should the band shape sheet material is 0～20% position of the overall with of this band shape sheet material.

14. the manufacture method as each the described Stretchable sheet in the claim 9～13 is characterized in that:

As a pair of described banded sheet material, the banded sheet material in a narrow margin that use is turned back the width both ends to form to exterior side separately, after described integrated operation, the described first cut-out operation and the described second cut-out operation are carried out, this band shape sheet material part of turning back is separately launched, and a pair of deploying portion that should the band shape sheet material is engaged with each other.

15. require the manufacture method of each the described Stretchable sheet in 1～14 as described, it is characterized in that:

In described cut-out operation, the length of the linear elastic bodies that comprises according to the Stretchable sheet of making becomes the mode of homogeneous, will cut off from the respectively extended part in the width both ends of a pair of described banded sheet material.

16. the manufacture method as claim 6 or 7 described Stretchable sheets is characterized in that:

Use the unit of will the part of extended described linear elastic bodies pressing of pressing, with the attraction portion that partly is not delivered to of cut linear elastic bodies.

17. the manufacture method of a disposable diaper is characterized in that:

This disposable diaper has: have surficial sheets, back-sheet and be arranged at the absorbent main body of the absorber between this two sheet material; With the waistline sheet that comprises Stretchable sheet,

The manufacture method of described disposable diaper comprises: the operation of making described Stretchable sheet by the manufacture method of each the described Stretchable sheet in the claim 1～16.

18. the manufacture method of a disposable diaper is characterized in that:

To make disposable diaper as the waistline sheet by the resulting Stretchable sheet of the manufacture method of each the described Stretchable sheet in the claim 1～16,

This disposable diaper has: has surficial sheets, back-sheet and is arranged at the absorbent main body of the absorber between this two sheet material,

The manufacture method of this disposable diaper comprises:

The operation of the non-individual body of the non-individual body of manufacturing surficial sheets, the non-individual body of back-sheet and absorbent main body, wherein, the non-individual body of described absorbent main body has at throughput direction and is arranged at a plurality of absorbers between the non-individual body of described surficial sheets and this two sheet material of described back-sheet intermittently;

Carry the non-individual body of this absorbent main body at throughput direction on one side, on one side according to the mode in two outsides that are projected into the direction of reporting to the leadship after accomplishing a task with this throughput direction, the operation that a pair of described waistline sheet is configured one by one to the absorber of the non-individual body that is contained in absorbent main body; With

The non-individual body that is provided with the absorbent main body of waistline sheet is cut into the operation of the size of each diaper.