CN104349757B

CN104349757B - Method for manufacturing composite body of continuous sheets for absorbent article and apparatus of the same

Info

Publication number: CN104349757B
Application number: CN201380030293.1A
Authority: CN
Inventors: 小笠原吉; 小笠原吉一; 石川慎; 石川慎一
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2012-07-06
Filing date: 2013-07-03
Publication date: 2017-04-12
Anticipated expiration: 2033-07-03
Also published as: CN104349757A; JP2015521865A; WO2014006902A1; JP6220795B2

Abstract

The present invention relates a method for manufacturing a composite body (1a) of a continuous sheet for an absorbent article. The outer circumferential surface (21a) of the holding roller (21) has individual face portions (21p) formed adjacent to each other in the rotational direction (Dc), and adjacent face portions (21p) are linked via a corner portion (21c) extending in the CD direction.

Description

It is used for the method and its equipment of the complex of the continuous sheet of absorbent article for manufacture

Technical field

The present invention relates to be used for manufacture for the side of the complex of the continuous sheet of absorbent article (such as disposable diaper) Method and equipment.

Background technology

Generally, in the production line for the absorbent article of such as disposable diaper and sanitary napkin, as shown in figure 1, from even Cut and produce the cutting film 103 with predetermined length on continuous film 103a, and the cutting film 103,103 ... for being formed along The continuous direction of continuous sheet 105a is adhered on the continuous sheet 105a by made by non-woven fabrics etc. with predetermined adhesion pitch, its In, there is interval between adjacent cutting film 103,103.

Used as an example of said method, PTL1 discloses a kind of method, and methods described is used：Anvil roller 121, the anvil The circumferentially Dc rotations of roller 121；Cutting roller 131, the cutting roller 131 is positioned to relative with anvil roller 121, so as to synchronous rotation Turn；With pressure roller 143, circumferentially Dc is located on the downstream of cutting roller 131 pressure roller 143.

Reference listing

Patent document

【PTL1】JP 2007-260875A

The content of the invention

Technical problem

For said method more particularly described below, first, arrange on the basic whole outer surface 121a of anvil roller 121 and take out Section (not shown) is inhaled, the suction section aspirates continuous film 103a, to keep continuous film, wherein the anvil roller 121 is with predetermined Periphery velocity amplitude V121 rotations.Continuous film 103a is transported to outer surface 121a.In this regard, continuous film 103a Travelling speed value V103a is set to be less than the value of periphery velocity amplitude V121.Therefore, part 103e is being allowed relative to outer weekly form While 121a slidings (slip) of face, the outer surface 121a of anvil roller 121 keeps the position of continuous film 103a with surface contact conditions In the part 103e of edge.

At the same time, on the outer surface 121a of anvil roller 121, reception blade 123 is provided with, for receiving cutting roller 131 cutting blade 133.It is continuous on outer surface 121a when blade 123 is received through the position of placement cutting roller 131 Film 103a is clamped in the cutting blade 133 of cutting roller 131 and receives between blade 123, to cut and separates its edge Part 103e, so as to produce cutting film 103.

Then, the cutting film 103 cut from continuous film 103a is maintained at into anvil roller 121 with the state of not relative slip On outer surface 121a, and therefore circumferentially Dc transports the cutting film with the periphery velocity amplitude V121 of anvil roller 121 103.Now, based on the speed difference between periphery velocity amplitude V121 and above-mentioned travelling speed value V103a, in current cutting film Interval D 103 is formed between 103 and the cutting film 103 that is then cut out.

Finally, when cutting film 103 circumferentially Dc in transport path towards pressure roller 143 position when, cut Cut film 103 to stick on serialgram 105a, with the velocity amplitude V105a essentially identical with periphery velocity amplitude V121 on pressure roller 143 Transport the continuous sheet 105a.By this way, cutting film 103 is sticked on continuous sheet 105a, wherein, adjacent cutting There is interval between film 103.

However, the present inventors have observed that, very thin and flexible cutting film 103 is sometimes (such as when cutting film 103 When being adsorbed on the outer surface 121a of anvil roller 121) it is likely to corrugation.If corrugated cutting film 103 is adhered to continuously On sheet material 105a, then this fold can retain on the final product.According to product, this may not only damage outward appearance but also can not The former function of affecting product to implement sharply.For example, when cutting film 103 is for preventing liquid from letting out from the absorber of disposable diaper When revealing the leakproof film of outside, fold may be used as the groove that liquid discharges can be flowed through, so as to cause fluid leakage, And therefore significantly reduce the commodity value of diaper.

In view of above-mentioned FAQs has contemplated the present invention, and the purpose of the present invention is to prevent or mitigate cutting Sheet material wrinkle, this corrugation may for example from the first continuous sheet cut cutting film be attached to the second continuous sheet with Occur during the complex of manufacture continuous sheet.

The solution of problem

In order to solve the above problems, a primary aspect of the invention relates to a kind of serialgram for being used for absorbent article for manufacture The manufacture method of the complex of material, methods described is cut from the first continuous sheet and is produced cutting sheet material and cuts described Pitch cutting material is covered and is attached to the second continuous sheet, wherein, it is continuous along described second on second continuous sheet There is interval between the adjacent cutting sheet material in the continuous direction of sheet material, methods described includes：

By the use of the first conveyer using the first travelling speed value along first continuous sheet as carriage direction Transport first continuous sheet in continuous direction；

Make maintaining roller and rotated with the periphery velocity amplitude higher than the first travelling speed value, and will be from the described first fortune First continuous sheet for sending mechanism is maintained on the outer surface of the maintaining roller, while allowing first continuous sheet Relative to the outer surface relative slip backward of the maintaining roller；

Cut simultaneously from first continuous sheet by being engaged clamping first continuous sheet with blade members The cutting sheet material is produced, wherein, the blade members are arranged on the outer surface of the maintaining roller；With

The second continuous sheet is supplied towards the cutting sheet material, and the cutting sheet material is covered and is attached to described second On continuous sheet, wherein, the cutting sheet material is maintained on the outer surface of the maintaining roller in the way of not relative slip, To transport cutting sheet material with the periphery velocity amplitude along the direction of rotation of the maintaining roller；

Wherein, each face part is being formed in the outer surface of the maintaining roller along the adjacent mode in the direction of rotation On, and adjacent face part linked by angle part, and the angle part is along crisscross with what the carriage direction intersected Extend.

Another aspect of the present invention is related to a kind of manufacture of the complex of the continuous sheet for being used for absorbent article for manufacture Equipment, the equipment is configured to from the first continuous sheet cut and produce cutting sheet material and covers the cutting sheet material And be attached to the second continuous sheet, wherein, on second continuous sheet along the continuous of second continuous sheet There is interval, the equipment includes between the adjacent cutting sheet material in direction：

First conveyer, first conveyer is configured to using the first travelling speed value along as carriage direction Transport first continuous sheet in the continuous direction of first continuous sheet；

Roller mechanism, the holding roller mechanism is kept to include maintaining roller, the maintaining roller sets on the periphery of the maintaining roller At least one blade members are equipped with, the holding roller mechanism is configured to make the maintaining roller with higher than the first travelling speed value The rotation of periphery velocity amplitude, and be configured to be maintained at described from first continuous sheet of first conveyer On the outer surface of maintaining roller, and while first continuous sheet is allowed relative to the outer surface phase backward of the maintaining roller To sliding；

Cutting roller, the cutting roller be configured to by with the blade structure being arranged on the outer surface of the maintaining roller Part is engaged clamping first continuous sheet and cutting sheet material is cut and produced from first continuous sheet；With

Combining mechanism, the combining mechanism is configured to supply second continuous sheet towards the cutting sheet material, and The cutting sheet material is covered and is attached on second continuous sheet, wherein, the cutting sheet material is slided with not relative Mode be maintained on the outer surface of the maintaining roller, with along the direction of rotation of the maintaining roller with the periphery velocity amplitude Transport cutting sheet material；

Wherein, each face part is being formed in the periphery of the maintaining roller along direction of rotation mode adjacent to each other On surface and adjacent described facial lease making is linked by angle part, and the angle part with the carriage direction along intersecting Crisscross extension.

Referring to the drawings, further feature of the invention will become apparent from the description of this specification.

Beneficial effects of the present invention

In accordance with the invention it is possible to prevent or reduce cutting sheet material (such as from the first continuous sheet cut and produce Cutting film) fold that produces when being attached to the second continuous sheet with the complex for manufacturing continuous sheet.

Description of the drawings

[Fig. 1] Fig. 1 is the schematic side elevation of conventionally manufactured equipment 110.

[Fig. 2A] Fig. 2A is the schematic plan view of dorsal part sheet material 1.

[Fig. 2 B] Fig. 2 B are the schematic plan views of the intermediate member 1a as the original sheet material for dorsal part sheet material 1.

[Fig. 3] Fig. 3 is the schematic side elevation of the manufacturing equipment 10 of the present embodiment.

[Fig. 4 A] Fig. 4 A are the external perspective views of innovative anvil roller 21, and it is used to preventing or mitigating cutting film 3 Corrugation.

[Fig. 4 B] Fig. 4 B are the schematic enlarged views of the Promethean part of embodiment of the outer surface 21a of roller 21.

[Fig. 5] Fig. 5 is the schematic enlarged view of the part near pressure roller 43.

[Fig. 6 A] Fig. 6 A are the external perspective views of anvil roller 21, wherein, planar section 21p and angle part 21c is made only in outer In holding area R1 in perimeter surface 21a.

[Fig. 6 B] Fig. 6 B are the partial enlarged views of the outer surface 21a of roller 21.

[Fig. 7 A] Fig. 7 A are the external perspective views of anvil roller 21, wherein, planar section 21p and angle part 21c is made only in outer In region R5 in perimeter surface 21a.

[Fig. 7 B] Fig. 7 B are the partial enlarged views of the outer surface 21a of roller 21.

Specific embodiment

Referring to the drawings, at least following item will become clear from from the description of this specification.Only by example Mode describes embodiments of the invention.

A kind of manufacture method of the complex of the continuous sheet for being used for absorbent article for manufacture, methods described connects from first Cutting sheet material is cut and produced on continuous sheet material, and cutting sheet material is covered and is attached on the second continuous sheet, wherein, mutually The cutting sheet material for adjoining is spaced from each other on the second continuous sheet along the continuous direction of the second continuous sheet, methods described bag Include：

By the use of the first conveyer using the first travelling speed value along the continuous of the first continuous sheet as carriage direction Transport the first continuous sheet in direction；

Maintaining roller is made with the periphery velocity amplitude rotation higher than the first travelling speed value, and by from the first conveyer First continuous sheet is maintained on the outer surface of maintaining roller, while allowing the first continuous sheet relative to the outer weekly form of maintaining roller Towards rear relative slip；

Cutting sheet is cut and produced from the first continuous sheet by being engaged the first continuous sheet of clamping with blade members Material, the blade members are arranged on the outer surface of maintaining roller；With

The second continuous sheet is supplied towards cutting sheet material, and cutting sheet material is covered and be attached to the second continuous sheet On, wherein the cutting sheet material is not by be maintained on the outer surface of maintaining roller with respect to the state slided, so as to described outer Peripheral speed angle value transports the cutting sheet material along the direction of rotation of maintaining roller,

Wherein, single face part is formed on the outer surface of maintaining roller adjacent to each other along direction of rotation, and The facial lease making for adjoining is linked by angle part, and the angle part is along the crisscross extension intersected with carriage direction.

According to the above-mentioned manufacture method for manufacturing the complex of continuous sheet, on the outer surface of maintaining roller edge is formed The angle part of the crisscross extension intersected with carriage direction.Therefore, when the first continuous sheet relative to outer surface backward Relative first continuous sheet is slightly captured on angle part when sliding, so as to draw described the along the direction of rotation of maintaining roller One continuous sheet, thus quickly smooths the fold on the first continuous sheet.Therefore, it is possible to preventing or limiting by connecting from first The cutting sheet material corrugation cut on continuous sheet material and produce.

It should be noted that the first continuous sheet slides backward relatively relative to the outer surface of maintaining roller means first Outer surface backward sliding (upstream side of direction of rotation) of the continuous sheet relative to the rotation of maintaining roller.

In the above-mentioned manufacture method for manufacture for the complex of the continuous sheet of absorbent article, it may be desirable to：

The outer surface of maintaining roller has the holding area for causing to keep cutting sheet material, and the holding area is along rotation side To a region, and

Angle part is formed at least described holding area.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, angle part at least shape Into in the above-mentioned holding area in the region along direction of rotation of maintaining roller.Therefore, when the first continuous sheet is relative to outer Perimeter surface is relative when sliding backward, and the angle part in holding area is at least through the first continuous sheet corresponding to cutting sheet material The upstream-side-end part of a part.By this arrangement, angle part can be smoothed on this upstream-side-end part Fold, as a result, be prevented from or limit the cutting sheet material corrugation produced by cutting off from the first continuous sheet.

The outer surface of maintaining roller has：Holding area, the holding area is configured to keep cutting sheet material；With non-holding Region, the non-holding area is configured to not keep cut sheet material, wherein, the holding area and non-holding area be along The region of direction of rotation,

Holding area is formed with angle part, and

Non- holding area includes not forming the region of angle part.

According to the above-mentioned manufacture method for manufacturing the complex of continuous sheet, it is not necessary in the whole outer surface of maintaining roller Upper formation angle part and face part.This can reduce processing cost and the manpower needed for the outer surface of maintaining roller.

It is additionally, since angle part to be formed in the holding area for keeping cutting sheet material, it is possible to being in cutting sheet material At least one of fold of the part corresponding to cutting sheet material is smoothed during the state of the first continuous sheet.

In the above-mentioned manufacture method for manufacture for the continuous sheet complex of absorbent article, it may be desirable to：

Multiple angle parts are formed in whole holding area.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, at the place of maintaining roller Multiple angle parts are formed in whole above-mentioned holding area in the region along direction of rotation.Therefore, when the first continuous sheet When sliding relatively backward relative to outer surface, the angle part at the end of downstream side of holding area necessarily passes the first company The basic whole length of the part corresponding to cutting film of continuous sheet material.Therefore, this angle part can smooth and be cut corresponding to this Fold in the basic whole length of the part of pitch cutting material.As a result, it is possible to prevent from or mitigate to cut from the first continuous sheet The cutting sheet material of generation wrinkles over the whole length.And, using the multiple angle parts being formed in whole holding area, During relative slip, multiple angle parts are through the part corresponding to above-mentioned cutting sheet material of the first continuous sheet.As a result, it is possible to obtain Obtain and significantly put down wrinkle effect.

The outer surface of maintaining roller has the multiple angle parts being formed in along direction of rotation in whole circumference.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, multiple angle part edges Direction of rotation to be formed on the outer surface of maintaining roller in whole circumference.Therefore, when the first continuous sheet is relative to periphery When surface is slided relatively, there is part corresponding to cutting sheet material of the angle part in angle part to the first continuous sheet all the time Implement flat wrinkle operation, as a result, be obtained in that significant flat wrinkle effect.

The outer surface of maintaining roller has the region of the end of downstream side part for being configured to keep cutting sheet material, and the region is Along a region of direction of rotation；And

Angle part is at least formed at being configured to keep at the region of downstream end part.

According to the above-mentioned manufacture method for manufacturing the complex of continuous sheet, above-mentioned angle part is formed in outer surface In for keeping the region of end of downstream side part of cutting sheet material.Therefore, when the first continuous sheet relative to outer surface to Afterwards during relative slip, the inevitable upstream-side-end corresponding to cutting sheet material at least along from the first continuous sheet in this angle part Advance in a partial part to the region of a part for the end of downstream side part corresponding to cutting sheet material of the first continuous sheet. By this arrangement, angle part can smooth the substantially whole of the part corresponding to above-mentioned cutting sheet material of the first continuous sheet Fold in individual length, as a result, be prevented from or suppress by cutting the cutting sheet material for producing at it from the first continuous sheet Wrinkle in basic whole length.

And, in some cases, angle part and face part can be made only in positioned at along in the region of direction of rotation For keep cutting sheet material end of downstream side part region in.In these cases, process can be greatly reduced to keep Cost and manpower needed for the outer surface of roller.

It is used in the manufacture method of continuous sheet complex for absorbing product for manufacture above-mentioned, it may be desirable to：

The face part that adjacent from corners point is formed on the outer surface of maintaining roller is planar section.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, above-mentioned face part is Planar section.Therefore, when angle part and above-mentioned facial lease making adjacent thereto cross the coupling position being connected with the second continuous sheet When, first, angle part is pressed against sheet material is cut on the second continuous sheet, to implement to combine.Hereafter, using by corner Divide the part for combining as the pivotal point for rotating, the cutting sheet material being maintained on the planar section of the upstream side of adjacent from corners point A part is inclined simultaneously towards the second continuous sheet, thus above-mentioned to be partially covered on the second continuous sheet.Therefore, sheet material is cut The some corresponding to above-mentioned face part in each can be covered on the second continuous sheet, its stability can be with With working as there is the sheet material for forming polygonal broken line the multiple of segmentation are made as starting point by using corresponding broken line Stability when part inclines successively one by one and is folded on second sheet material is identical.Therefore, even if stacked When on the second continuous sheet, it is also possible to which some for easily keeping cutting sheet material is in flat condition, as a result, can have Prevent corrugation to effect.

The above-mentioned face part for being additionally, since the angle part for adjoining upstream side is plane, so being arc with this face part The situation on shape surface is compared, can between a part for the cutting film being maintained on above-mentioned face part and the second continuous sheet shape Into wide wedge shape space, and this allows easily to discharge air from this space.Therefore, it is possible to be effectively prevented during combination Air enters into the space cut between sheet material and the second continuous sheet and situation about being sealed in the space, as a result, It is prevented from producing crowned fold.

In the above-mentioned manufacture method for manufacture for the complex for absorbing the continuous sheet of product, it may be desirable to：

The outer surface of maintaining roller is provided with multiple holes,

Multiple Kong Yu angle parts are adjacent to each in the multiple face parts on the outer surface for being formed in maintaining roller In be arranged side by side along crisscross, and

Hole is configured to by the way that the first continuous sheet and cutting sheet material are maintained at into the outer weekly form of maintaining roller via hole suction On face.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, due to multiple above-mentioned Hole is formed in each in above-mentioned multiple face parts, so each face part can reliably keep cutting the right of sheet material Part is answered, and this also contributes to prevent or suppress corrugation.

Its than the outer surface of maintaining roller except the face point in addition to of the distribution density in the multiple holes in the part of face The distribution density of its part is high.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, by angle part During flat wrinkle, the first serialgram can be firmly aspirated and kept by the face part being located on the both sides of angle part along direction of rotation Material.This can strengthen the flat wrinkle effect of angle part.

In the above-mentioned manufacture method for manufacture for the complex of the continuous sheet of absorbent article, it may be desirable to pass through Combining mechanism is implemented to combine,

The combining mechanism includes

Conveyer, the conveyer is configured to the velocity amplitude to be substantially equivalent to the periphery velocity amplitude of maintaining roller and transports the Two continuous sheets；With

Pressure roller, the pressure roller is configured to for the second continuous sheet to be pressed against cutting on the outer surface for being maintained at maintaining roller On pitch cutting material, to implement to combine, and

The diameter of pressure roller and the average diameter of maintaining roller are non-integer multiples.

According to it is above-mentioned for manufacture for absorbent article continuous sheet complex manufacture method, the diameter of pressure roller and It is non-integral multiple relation between the average diameter of maintaining roller.Therefore, it is possible to effectively prevent to be located at the outer weekly form of maintaining roller Above-mentioned angle part on face is all the time against the situation of the ad-hoc location on the outer surface of pressure roller.In other words, the outer weekly form of pressure roller The position abutted with the above-mentioned angle part of maintaining roller on face can move with rotating every time along direction of rotation, so as to divide Scatter the position abutted with angle part.By this arrangement, the outer surface uneven wear of pressure roller can be effectively prevented (concentrated wear), as a result, the gap that can easily manage between maintaining roller and pressure roller makes the gap be chronically at target zone It is interior, from prevent from wrinkling and with reference to accuracy from the perspective of, should accurately manage and adjust the gap.

In the above-mentioned manufacture method for manufacture for the complex of the continuous sheet of absorbent article, it may be desirable to

Angle part is along the crisscross linear extension intersected with carriage direction.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, due to above-mentioned corner Divide and be formed along crisscross linear extension, it is possible to substantially homogeneously applying to remove opening for fold along crisscross Power.And therefore, it is possible to improve anti-corrugation effect.

The cross section of maintaining roller is convex polygon.

According to it is above-mentioned for manufacture for absorbent article continuous sheet complex manufacture method, maintaining roller it is transversal Face shape is convex polygon.Therefore, the first continuous sheet is necessarily further pulled on by the direction of rotation along maintaining roller, thus soon Speed removes fold present in the first continuous sheet.As a result, it is possible to further suppress fold to be formed in from this first serialgram On the cutting sheet material that material cuts and produces.

The shape of cross section of maintaining roller is regular polygon.

According to it is above-mentioned for manufacture for absorbent article continuous sheet complex manufacture method, maintaining roller it is transversal Face shape is regular polygon, enabling the periphery speed value difference between the face point of maintaining roller is controlled for whole circumference.

Face part and angle part are formed on the projections, the periphery of the outer surface of the ledge and maintaining roller Split-phase ratio along maintaining roller radial direction outwardly.

According to the manufacture method of the complex of the above-mentioned continuous sheet for being used for absorbent article for manufacture, face part and corner Divide and formed on the projections.Therefore, the first continuous sheet is necessarily further pulled on by the direction of rotation along maintaining roller, thus Further rapidly remove fold present in the first continuous sheet.And as a result, it is possible to further suppress continuous from first Fold is formed on the cutting sheet material that sheet material cuts and produces.

Additionally, a kind of manufacturing equipment of the complex of the continuous sheet for being used for absorbent article for manufacture, the equipment structure Cause from the first continuous sheet to cut and produce cutting sheet material and cutting sheet material covered and combined on the second continuous sheet, Wherein, have between the cutting sheet material adjacent to each other of the continuous direction along the second continuous sheet on the second continuous sheet Interval, the equipment includes：

First conveyer, first conveyer is configured to along the first continuous sheet as carriage direction Continuous direction the first continuous sheet is transported with the first travelling speed value；

Roller mechanism, the holding roller mechanism is kept to include maintaining roller, the maintaining roller sets on the outer surface of maintaining roller At least one blade members are equipped with, keep roller mechanism to be configured to make maintaining roller with higher than the periphery velocity amplitude of the first travelling speed value Rotation, and be configured to while allowing outer surface of first continuous sheet relative to maintaining roller to slide relatively backward in the future It is maintained on the outer surface of maintaining roller from the first continuous sheet of the first conveyer；

Cutting roller, the cutting roller is configured to connect from first by being engaged the first continuous sheet of clamping with blade members Cutting sheet material is cut and produced on continuous sheet material, wherein, the blade members are arranged on the outer surface of maintaining roller；With

According to the above-mentioned manufacturing equipment for manufacturing the complex of continuous sheet, along the side of intersection intersected with carriage direction It is formed on the outer surface of maintaining roller to the angle part for extending.Therefore, when the first continuous sheet relative to the outer surface to Afterwards during relative slip, the first continuous sheet is slightly captured or is otherwise in connection with angle part, described so as to cause First continuous sheet is pulled along the direction of rotation of maintaining roller, thus quickly smooths the fold on the first continuous sheet.Therefore, It is prevented from or suppresses this cutting sheet material corrugation cut and produce from the first continuous sheet.

===embodiment===

The manufacturing equipment 10 of the complex for continuous sheet of the present embodiment manufactures the dorsal part piece as disposable diaper The intermediate member 1a of the original sheet material of material 1, the original sheet material is an example of the complex of continuous sheet.Fig. 2A is dorsal part The schematic plan view of sheet material 1, Fig. 2 B are the schematic plan views of the intermediate member 1a of the original sheet material as dorsal part sheet material 1.

The dorsal part sheet material 1 illustrated in Fig. 2A is composite sheet 1, and the composite sheet 1 includes：Outer panel 5, the outer panel 5 outsides for constituting diaper；The impermeable leakproof film 3 of liquid, the leakproof film 3 adheres to the inner surface of outer panel 5 and (is located at and wears Surface in wearer's skin side).It is unshowned by sequentially forming absorber made by paper pulp fiber, not showing on leakproof film 3 The front side sheet material of the fluid permeable for going out etc. is stacked on top of each other and is fixed, and thus produces the base material of diaper.

The examples of materials of outer panel 5 includes soft non-woven fabrics etc., and uses non-woven fabrics in this illustration, wherein, The non-woven fabrics has the resin fibre as main material.The examples of materials of leakproof film 3 includes soft resin film (polyethylene Film) etc., and resin film is used in this illustration.

As shown in Figure 2 B, split with product pitch P as the intermediate member 1a of the original sheet material for dorsal part sheet material 1 It is non-individual body into before multiple units of dorsal part sheet material 1.That is, intermediate member 1a is included by the original fabrics as outer panel 5 Continuous web 5a made by non-woven fabrics, and with multiple leakproof films 3,3 ... for cutting out, the leakproof film that these cut out with Essentially identical adhesion pitch P3 of product pitch P is sticked in continuous web 5a along continuous direction.The manufacture of the present embodiment sets Standby 10 manufacture this intermediate member 1a.In other words, manufacturing equipment 10 is first from the continuous film as the original membrane for leakproof film 3 The cutting film 3 as leakproof film 3 is cut and produced on 3a, and cutting film 3 is covered in along continuous direction with adhering to pitch P3 In continuous web 5a as the original fabrics of outer panel 5, and cutting film 3 is attached in continuous web 5a, is thus made Produce intermediate member 1a.However, the invention is not limited in this intermediate member 1a of manufacture.

Manufacturing equipment 10 is described more fully below.

Fig. 3 is the schematic side elevation of manufacturing equipment 10.The width of continuous film 3a used herein is also referred to as " CD Direction ".In figure 3, CD directions are orthogonal to carriage direction, and the carriage direction is the continuous direction of continuous film 3a, CD directions pair Ying Yu " crisscross " and along penetrate paper plane direction orient.And, CD is oriented parallel to for the company of outer panel 5 The width of continuous web 5a.It should be noted that any direction for being orthogonal to CD directions is also referred to as " MD directions ".In other words, MD directions are parallel to any direction of the paper plane of Fig. 3, and in other words, MD directions are by as shown in Figure 3 orthogonal Any direction that above-below direction and fore-and-aft direction are limited.

And, " continuous film 3a " and " cutting film 3 " is corresponded respectively to " the first continuous sheet " and " cutting sheet material ", and " even Continuous web 5a " is corresponded to " the second continuous sheet ".

As shown in figure 3, manufacturing equipment 10 includes：(1) continuous film conveyer 11, the continuous film conveyer 11 is with One travelling speed value V3a transports continuous film 3a along MD directions；(a) anvil roller mechanism 20, the anvil roller mechanism 20 make anvil roller 21 with Higher than the periphery velocity amplitude V21 rotations of the first travelling speed value V3a, so as to the continuous film from continuous film conveyer 11 will be transported 3a is maintained on the outer surface 21a of anvil roller 21, and while allows continuous film 3a to slide relatively backward relative to outer surface 21a It is dynamic；(3) cutting roller 31, the cutting roller 31 by continuous film 3a by being clamped in cutting roller 31 and receiving between blade 23 come from even Continuous film 3a cuts and produces cutting sheet material 3, and the reception blade 23 is placed on the outer surface 21a of anvil roller 21；(4) combine Mechanism 40, the combining mechanism 40 is supplied for the continuous web of outer panel 5 towards cutting film 3 with the second travelling speed value V5a 5a, cutting film 3 thus covered and be attached in continuous web 5a, wherein, the cutting film 3 cuts out simultaneously from continuous film 3a By by not, with respect to being maintained on the outer surface 21a of anvil roller 21 in the way of sliding, the second travelling speed value V5a is outer with above-mentioned Peripheral speed angle value V21 is generally equalized.

Continuous film conveyer 11 (corresponding to the first conveyer) is, for example, drawing-in type band transporter.That is, continuous film fortune Send mechanism 11 that there is endless belt 12, the endless belt 12 has multiple SS (not shown), and the plurality of SS is formed and passed through The outer surface as transport surface of logical endless belt 12 is formed, and the continuous film conveyer 11 via described by taking out The suction of sucker and continuous film 3a is drawn on the outer surface of endless belt 12 and is kept at continuous film 3a and the outer surface In surface contact conditions.Endless belt 12 is driven, in order to be gone in ring with this aspiration phases, so as to above-mentioned first travelling speed Value V3a transports continuous film 3a along MD directions.It should be noted that continuous film conveyer 11 is not limited to drawing-in type band fortune Defeated machine.It is, for example possible to use pinch roll device etc., the pinch roll device is using rotation in the opposite direction and close to each other Driven roller and lower driven roller transport continuous film 3a while continuous film 3a is clamped on a pair.

Anvil roller mechanism 20 (corresponding to roller mechanism is kept) has the anvil roller 21 as main body, and the anvil roller 21 is driven around Along the rotation axis C21 rotations that CD directions extend.The outer surface 21a of anvil roller 21 have by by board with surface The state of contact keeps the holding function of board on surface, and comes to contact shape with surface by this function State keeps continuous film 3a and cutting film 3.In this illustration, by multiple SS 21h, 21h ... (not shown in Fig. 3；Referring to Fig. 4 A and 4B) realizing this holding function, the plurality of SS 21h, 21h ... insertion outer surface 21a is formed.That is, lead to Cross and aspirated via SS 21h, 21h ..., the outer surface 21a of anvil roller 21 bears suction force, and suction force becomes to use In the confining force for keeping above-mentioned continuous film 3a and cutting film 3.It should be noted that confining force is applied to into outer surface 21a's Method is not limited thereto.It is, for example possible to use another kind of method, such as using the method for electrostatic attraction.

Above-mentioned continuous film 3a is supplied to the outer surface 21a of anvil roller 21 in generally tangentially direction along outer surface 21a, And with surface contact conditions the continuous film 3a is wound and is maintained on outer surface 21a by above-mentioned confining force.Start Position Pwst on outer surface 21a is located at the upstream side of the placement location P31 of cutting roller 31 along direction of rotation Dc Predetermined angular at.

As described above, the periphery velocity amplitude V21 of anvil roller 21 is set to be greater than first travelling speed value V3a of continuous film 3a Velocity amplitude.Therefore, continuous film 3a is protected while relative to outer surface 21a relative slips backward with surface contact conditions Hold on the outer surface 21a of anvil roller 21.In other words, while continuous film 3a slides on outer surface 21a, based on above-mentioned One travelling speed value V3a is gradually moved along direction of rotation Dc towards downstream.

Receive blade 23 (corresponding to blade members) to be arranged on the outer surface 21a of anvil roller 21, the reception blade 23 Receive the cutting blade 33 of cutting roller 31.When blade 23 is received through the placement location P31 of cutting roller 31, outer surface 21a On continuous film 3a be clamped in reception blade 23 and the cutting blade 33 of cutting roller 31 between, the cutting roller 31 is in response to anvil The motion of roller 31 and rotate, thus cut continuous film 3a, to separate a part of 3e of the edge of continuous film 3a.Edge point Become cutting film 3 from part 3e.

Hereafter, by the cutting film 3 isolated by not with respect to slide in the way of be maintained on the outer surface 21a of anvil roller 21, Thus combined with outer surface 21a with cutting film 3 towards downstream along direction of rotation Dc with the periphery velocity amplitude V21 of anvil roller 21 All-in-one-piece mode transports cutting film 3.Now, based on periphery velocity amplitude V21 and travelling speed value V3a of above-mentioned continuous film 3a Between speed difference, interval D 3 is produced between current cutting film 3 and the cutting film 3 for being then cut out and producing.

Combining mechanism 40 is located at the position in the downstream of the placement location P31 of cutting roller 31 along direction of rotation Dc.With reference to Mechanism 40 has a conveyer 41 (such as transport roller 41), and the conveyer 41 is being substantially equivalent to the periphery velocity amplitude of anvil roller 21 The velocity amplitude V5a of V21 is along a transport path (transport path generally along the tangential direction of the outer surface 21a of anvil roller 21) Transport for continuous web 5a of outer panel 5, and the combining mechanism 40 also has pressure roller 43, and the pressure roller 43 will be along upper State the cutting sheet material 3 that above-mentioned continuous web 5a of transport path traveling is pressed against on the outer surface 21a for being maintained at anvil roller 21 On.

In this illustration, conveyer 41 includes the roller 41 that shape of cross section is circle, each in these rollers 41 The rotation axis C41 rotations for all being driven around extending along CD directions.It is circular roller that pressure roller 43 is also shape of cross section, institute State the rotation axis C43 rotations that pressure roller 43 for example is driven around extending along CD directions, and the periphery velocity amplitude of pressure roller 43 V43 is controlled so as to the periphery velocity amplitude V21 of substantially equal to anvil roller 21.It is to be noted, however, that pressure roller 43 can be driven Roller, the driven voller is rotated using the revolving force obtained by contacting with continuous web 5a.

Cutting film 3 on the outer surface 21a of anvil roller 21 when the placement location P43 of pressure roller 43, hotmelt The face towards continuous web 5a being applied in two surfaces of cutting film 3.For example, in the example of fig. 3, when Cutting film 3 on the outer surface 21a for be maintained at anvil roller 21 before through hotmelt application devices 70 placement location When, apply hotmelt.

Clearance C L between the outer surface 43a of pressure roller 43 and the outer surface 21a of anvil roller 21 is set to such value, Under conditions of the value, when position of the cutting film 3 through pressure roller 43, cutting film 3 and continuous web 5a can be by anvil rollers 21 With pressure roller 43 both along cutting film 3 and the thickness direction slight amount of continuous web 5a.

Therefore, when the cutting film 3 on the outer surface 21a for being maintained at anvil roller 21 is through the placement location of pressing roller 43, Cutting film 3 on outer surface 21a is compressed against and is attached to continuous web 5a, and this permission is defeated from outer surface 21a by cutting film 3 Deliver to continuous web 5a.By this way, the intermediate member 1a of dorsal part sheet material 1 is made.

Incidentally, prevent from or mitigate the corrugated operation of cutting film 3 to implement on the outer surface 21a of anvil roller 21.Figure 4A is the perspective external view of the anvil roller 21 for implementing the operation, and Fig. 4 B are the schematic of the part for implementing the operation of outer surface 21a Enlarged drawing.

As high-visible from Fig. 4 A, along multiple banding planar section 21p in CD directions along direction of rotation Dc It is formed on the whole outer surface 21a of anvil roller 21 (in addition to being positioned with the part for receiving blade 23).Therefore, anvil roller 21 is whole Shape with regular polygon cylinder on body, its shape of cross section is regular polygon.More specifically, planar section 21p, 21p ... With identical rectangular shape, each planar section 21p, 21p ... are respectively provided with along the long side in CD directions and along direction of rotation The minor face of Dc.Equally, as shown in Figure 4 B, planar section 21p, the 21p ... for adjoining along direction of rotation Dc is via along CD directions The straight line angle part 21c of extension is connected with each other.It should be noted that planar section 21p corresponds to face part 21p.

Using the anvil roller 21 of this regular polygon shape with multiple angle part 21c, 21c ... on outer surface 21a, When the continuous film 3a being maintained on outer surface 21a relative to roller 21 direction of rotation Dc along outer surface 21a relatively backward During slip, continuous film 3a is slightly captured on angle part 21c, 21c ... on outer surface 21a, causes continuous film 3a edges Direction of rotation Dc and be pulled to downstream, the fold thus, it is possible to quickly smooth continuous film 3a.Due to by smoothing from this Cut on continuous film 3a and produce cutting film 3, wrinkle therefore, it is possible to preventing or mitigating cutting film 3.

And, in this illustration, because angle part 21c is formed as straight line along CD directions, it is possible to along CD side To the tension force substantially homogeneously applied for smoothing fold.This also contributes to prevent or reduce corrugation.

And, using the anvil roller 21 of this shape of cross section with regular polygon, additionally it is possible to effectively prevent in cutting film 3 The corrugation that may occur when being attached to continuous web 5a.Fig. 5 is the explanatory diagram of this characteristic, and Fig. 5 is near pressing roller 43 Part schematic enlarged view.

As shown in figure 5, as each angle part 21c on the outer surface 21a of anvil roller 21 and its neighbouring planar section 21p When placement location P43 (the position P5a for being combined with continuous web 5a) of pressure roller 43, first, angle part 21c is by cutting film 3 are pressed against in continuous web 5a, to implement to combine.Hereafter, using the part 3c in combination with the 21c of angle part of cutting film 3 As the pivotal point of rotation, the portion being maintained on the above-mentioned planar section 21p of the upstream side of adjacent from corners point 21c of cutting film 3 3p is divided to incline simultaneously towards continuous web 5a substantially, thus above-mentioned part 3p is covered in continuous web 5a.Therefore, sheet material is cut 3 various pieces 3p corresponding to above-mentioned plane 21p can be stacked in continuous web 5a, and the stability for being obtained with work as Using with for formed the sheet material of polygonal broken line by using corresponding broken line 3c as starting point one by one according to The part of secondary angular sectors and the stability that obtained when being stacked in continuous web 5a is identical.

It is as mentioned above plane in the face part 21p of upstream side adjacent from corners point 21c to be additionally, since, so and this Face part 21p is that the situation of curved surface is compared, can be in the part 3p being maintained on planar section 21p of cutting film 3 and continuous width Wide wedge shape space S P is obtained between material 5a, and this allows easily to discharge air from space S P.Therefore, it is possible to be prevented effectively from sky The space that gas is entered between cutting film 3 and continuous web 5a during combination so as to be sealed in the space in situation, knot Really, it is prevented from crowned fold occur.

The quantity (quantity of angle part) at the angle of the regular polygon cylinder of anvil roller 21 can change according to the diameter of anvil roller 21. For example, when the diameter (average diameter) of anvil roller 21 is 200mm to 600mm, the quantity at angle is 60 to 180.

Although as an example anvil roller 21 is described as having the shape of cross section of regular polygon, the present invention does not limit to In this.The shape of cross section of anvil roller 21 needs not to be regular polygon, as long as the shape of cross section of anvil roller 21 is convex polygon (its In, the interior angle of each angle part 21c is respectively less than 180 °).For example, anvil roller 21 can be that (cross section is formed convex polygon cylinder The cylinder of convex polygon), the convex polygon cylinder has the planar section of the sizes as above-mentioned planar section 21p 21p, 21p ..., these planar sections have the different minor face of length, and these have the planar portions of the different minor face of length 21p, 21p ... is divided repeatedly to arrange along direction of rotation Dc with predefined procedure.It is to be noted, however, that by microscope The lower construction for observing this example, it can be seen that planar section 21p, 21p with the different minor face of length tend to mutual Different outer circular velocity motions.As a result, it is desirable to have the shape of cross section of the regular polygon shown in Fig. 4 A.

In addition, although in the above-described embodiments planar section 21p and angle part 21c are formed in anvil roller 21 along CD directions On whole width, but the invention is not limited in this.For example, planar section 21p and angle part 21c are not necessarily formed at anvil roller 21 Outer surface 21a region A2, A2 in, described region A2, A2 from for keep continuous film 3 region A3 along CD directions Extend towards end, and region A2, A2 can be kept in bending.In other words, with regard to CD directions, planar section 21p and angle Part 21c should be at least formed in the region A3 for keeping continuous film 3.

Similarly, with regard to direction of rotation Dc, equally, planar section 21p and angle part 21c can be selectively formed only in In presumptive area R1, to reduce cost and manpower for processing needed for outer surface 21a.In other words, in order to by the shape of anvil roller 21 Become regular polygon cylinder as above, needs form multiple planar section 21p and angle part on whole outer surface 21a 21c.Therefore, in order to avoid such case, planar section 21p and angle part 21c can be selectively formed only in outer surface In presumptive area R1 along direction of rotation Dc of 21a.

Fig. 6 A and Fig. 6 B are the explanation views of the example of above-mentioned construction.Fig. 6 A are the perspective external views of anvil roller 21, and Fig. 6 B are outer The partial enlarged view of perimeter surface 21a.In this illustration, outer surface 21a has：Keep holding area R1 of cutting film 3； Non- holding area R2 of cutting film 3, holding area R1 and non-holding area R2 is not kept to be along rotation side To the region of Dc.Although planar section 21p and angle part 21c are formed in whole holding area R1, planar section 21p and Angle part 21c is not formed in non-holding area R2.That is, the part tool in non-holding area R2 of outer surface 21a There is the smooth surface as Partition section of rotundity.

Incidentally, as shown in Figure 6A, for example, each above-mentioned holding area R1 refers to such region R1, described Region R1 from it is corresponding reception blade 23 the position P23e1 along the end of downstream side edge of direction of rotation Dc from the beginning of, and And the position P3e1 to the length for being spaced apart cutting film 3 along downstream direction with the starting end terminates.Each non-holding area R2 Such region R2 is referred to, the region R2 is arrived for example from the beginning of the position P3e1 in the downstream of above-mentioned cutting film 3 The position P23e1 for receiving the downstream end edge in the downstream that starting end is located at along direction of rotation Dc of blade 23 terminates. And here, above-mentioned zone R2 is also referred to as non-holding area R2, although reason is non-holding area R2 described below keeping Continuous film 3a, but non-holding area R2 does not keep the cutting film 3 cut out from continuous film 3a.

Using anvil roller 21 configured as above, the region for being formed with planar section 21p and angle part 21c can be limited It is made as in holding area R1 only on outer surface 21a.Therefore, it is possible to reduce the outer surface 21a for processing anvil roller 21 Required cost and manpower.

Even if angle part 21c is made only in holding area R1, it is also possible in the portion corresponding to cutting film 3 of continuous film 3a Implement flat wrinkle in the basic whole length for dividing (it is used as flat wrinkle target) to process.That is, when continuous film 3a is relative to the outer of anvil roller 21 When perimeter surface 21a is slided backward relatively, the angle part 21ce (21c) at the downstream end of holding area R1 is along continuous film The basic whole length of the part corresponding to cutting film 3 of 3a is passed through.Therefore, it is substantially whole at it corresponding to the part of cutting film 3a By the process of flat wrinkle in individual length.It is to be noted, however, that with as in above-described embodiment (Fig. 4 A) in whole periphery The example that angle part 21c is formed on the 21a of surface is compared, due to the quantity reduction of the angle part 21c that film during sliding relatively is passed through, So the intensity decreases of flat wrinkle operation.

By contrast, for corrugated operation is prevented when cutting film 3 is bound to into continuous web 5a, can implement with it is upper State operation similar in embodiment (Fig. 4 A).That is, due to above-described embodiment in, in the example of Fig. 6 A, planar section 21p and angle part 21c are formed in the whole surface of holding area R1, it is possible to realizing in the whole length of cutting film 3 The part being maintained on planar section 21p is made using the part 3c combined by the angle part 21c in Fig. 5 as the pivotal point of rotation 3p inclines the action to be stacked in part 3p in continuous web 5a.And, with regard to from the part being maintained on planar section 21p Wedge shape space SP between 3p and continuous web 5a discharges the operation of air, rapidly discharges from the whole length of cutting film 3 Air.Therefore, it is possible in the whole length of cutting film 3 implement prevent with reference to when corrugated operation.Therefore, this example is complete It is complete poor unlike above-described embodiment (Fig. 4 A).

Incidentally, planar section 21p and angle part 21c can in the following manner be formed.That is, planar section 21p and angle Part 21c can be formed such that by virtually lying along the region without planar section 21p and angle part 21c in (example Such as, non-holding area R2 in Fig. 6 A) arc and the circle that formed is changed into the circumcircle of planar section 21p and angle part 21c, or (for example, the non-guarantor in Fig. 6 A during person is caused by virtually lying along the region without planar section 21p and angle part 21c Hold region R2) arc and the circle that formed is changed into the inscribed circle of the planar section 21p and the angle part 21c.Additionally, according to The circle that aforesaid way is formed can be with neither circumcircle be nor inscribed circle.In such a case, it is possible to angle part 21c is set Meter becomes the radial direction angle outwardly along anvil roller 21, wherein, its angle is selected from 174 ° to 178 ° (including end value) Scope.This angular range can also be applied to the angle part 21c formed based on above-mentioned inscribed circle or circumcircle.

Although in whole non-holding area R2 both not formed planar section 21p in the example of Fig. 6 A or not formed Angle part 21c, but arrangement can be designed to form planar section 21p and corner in a part for non-holding area R2 Divide 21c, and neither form planar section 21p in remaining region of non-holding area R2 nor form angle part 21c.

Additionally, in the example of Fig. 6 A, for each planar section 21p, multiple SS 21h, 21h ... (are corresponded to Hole) formed side by side along CD directions.Therefore, each planar section 21p can firmly hold the corresponding part 3p of cutting film 3 , and this also effectively helps prevent or reduce corrugation (Fig. 5).

It is desirable that, distribution density (the SS 21h of unit area of the SS 21h being formed in planar section 21p Quantity) formation than outer surface 21a has in other any parts in addition to planar section 21p of SS 21h Distribution density is high.In the example of Fig. 6 A, previous distribution density is about four times of latter distribution density.Using this arrangement Scheme, during flat wrinkle process is implemented by angle part 21c, can be adjacent with angle part 21c by circumferentially Dc Planar section 21p, 21p adsorb securely and keep continuous film 3a.Therefore, it is possible to effectively strengthen the flat of angle part 21c realizations Wrinkle effect.

Additionally, when SS 21h along direction of rotation Dc through placement location P43 (Fig. 3) of pressure roller 43 when, can stop Via the suction that SS 21h is implemented, and now can discharge air via SS 21h.By this arrangement, energy It is enough swimmingly cutting film 3 to be transferred in continuous web 5a from anvil roller 21 at the placement location P43 of pressure roller 43.In such case Under, it should be noted that before SS 21h reaches winding start position Pwst along direction of rotation Dc, restart to lead to Cross SS 21h and implement suction.

Incidentally, the formation on outer surface 21a have planar section 21p and angle part 21c along direction of rotation Dc Region can further reduce.Fig. 7 A and Fig. 7 B are the explanatory diagrams of such case：Fig. 7 A are the outside perspectives of anvil roller 21 Figure, and Fig. 7 B are the partial enlarged views of outer surface 21a.

In the examples described above, the region R5 for having planar section 21p and angle part 21c along the formation of direction of rotation Dc is only Be limited to the region R5 for keeping the downstream end part 3ed of cutting film 3, and outer surface 21a corresponding to except region The part of remaining region R6 outside R5 is the curved surface as approximate circle segmentation.

Even if angle part 21c is made only in the R5 of each region, it is also possible to the portion corresponding to cutting film 3 to continuous film 3a The basic whole length divided is implemented flat wrinkle and is processed.That is, when continuous film 3a is slided backward relatively relative to the outer surface 21a of anvil roller 21 When dynamic, angle part 21c, 21c ... of region R5 necessarily pass continuous film 3a from the upstream-side-end portion corresponding to cutting film 3 Divide the region of the part of the part to the end of downstream side part 3ed corresponding to cutting film 3 of 3eu.Therefore, corresponding to cutting film 3 Part over substantially the entire length thereof by flat wrinkle process.It is to be noted, however, that because angle part 21c is made only in In the R5 of region, so compared with the embodiment of above-mentioned Fig. 6 A, further reducing the total quantity of angle part 21c, i.e. Fig. 7 A's In example, an angle part 21c is only formed in the R5 of region.Therefore, the intensity of the flat wrinkle operation implemented during relative slip Further reduce.

And, in the examples described above, the intensity of the anti-corrugation operation performed when cutting film 3 is attached to into continuous web 5a Reduce.That is, because planar section 21p and angle part 21c are made only in the end of downstream side part 3ed's corresponding to cutting film 3 In the R5 of region, so only can perform when the end of downstream side part 3ed of cutting film 3 is attached to continuous web 5a above-mentioned preventing Wrinkle operation, and above-mentioned anti-corrugation can not be performed during the part 3u of the upstream side for being located at end of downstream side part 3ed is combined Operation.

It is to be noted, however, that in the examples described above, the part 21ap with planar section 21p and angle part 21c is Ledge 21ap, compared with the part around ledge 21ap of outer surface 21a, the ledge 21ap edges Radial direction outwardly.Therefore, it is possible to apply larger pressing force when with reference to end of downstream side part 3ed, so as to It is enough that cutting film 3 is firmly bonded to into continuous web 5a at the 3ed of downstream end part.Cutting film 3 positioned at end of downstream side The part 3u of the upstream side of part 3ed is gradually stacked simultaneously when being transported along MD directions drawing by end of downstream side part 3ed It is attached in continuous web 5a.Now, by smoothing fold from end of downstream side part 3ed drawings.So, prevent or subtract Light cutting film 3 wrinkles.

It should be noted that in the example of Fig. 7 B, only one angle part 21c is arranged in ledge 21ap.That is, In ledge 21ap, a pair are provided only with along direction of rotation Dc adjacent planar section 21p, 21p and positioned at the two An angle part 21c between planar section 21p, 21p.However, the invention is not limited in this, and multiple angles can be provided Part 21c.

Incidentally, in the case of there is angle part 21c on the outer surface 21a of anvil roller as above 21, it is proposed that There is non-integral multiple relation between the diameter of pressure roller 43 and the average diameter of anvil roller 21.Anvil roller 21 in this specification it is average Diameter refers to the value by the way that the circumferential length of the outer surface 21a of anvil roller 21 is obtained divided by pi.

By providing above-mentioned relation, the angle part 21c that can effectively prevent anvil roller 21 is resisted against the outer surface of pressure roller 43 Specific fixed position in 43a.In other words, abutting with the angle part 21c of anvil roller 21 on the outer surface 43a of pressure roller 43 Position can move with rotating every time along direction of rotation, so as to the position of the angle part 21c shocks that scatter.By this Arrangement, can effectively prevent the uneven wear (concentrated wear) of the outer surface 43a of pressure roller 43, as a result, can be easy Gap between ground management anvil roller 21 and pressure roller 43 makes the gap be chronically in target zone, from preventing corrugation and accurate combination From the perspective of, should accurately manage/adjust the gap.

===other embodiments===

Although describing the present invention already in connection with embodiment it should be appreciated that above-described embodiment is used for the purpose of Contribute to understanding the present invention, rather than be construed in a limiting sense the present invention.It is to be further understood that without departing substantially from the present invention Spirit on the premise of can change and change the present invention, and the present invention is naturally including its equivalent.For example, can implement such as Lower described deformation program.

Although planar section 21p is in the above-described embodiments as the face part being formed on the outer surface 21a of anvil roller 21 One example of 21p, but face part is not limited to face part 21p, as long as being formed along the adjacent faces of direction of rotation Dc Part 21p, 21p are connected with each other via the straight line angle part 21c extended along CD directions.For example, they can be curved surface Part, such as arcuate surface portions.

Although non-woven fabrics 5a is illustrated in the above-described embodiments as an example of the second continuous sheet, and continuous film 3a For an example of the first continuous sheet, but the invention is not limited in this.For example, the first continuous sheet can be continuous Film or non-woven fabrics, and the second continuous sheet can be non-woven fabrics or woven fabric.

Although disposable diaper, as an example of absorbent article, the invention is not limited in above-described embodiment This, as long as the absorbent article is the liquid discharges for absorbing wearer.For example, absorbent article can be sanitary napkin.

This application claims the rights and interests of Japanese publication No.2012-152792, the entire disclosure here is by reference It is incorporated herein.

Reference numerals list

1 dorsal part sheet material；1a intermediate products (complex of continuous sheet)；

3 cutting films (cutting sheet material)；

3a continuous films (the first continuous sheet)；

3c parts, the part of 3c edges, 3ed end of downstream side part, 3eu upstream-side-ends part；

3u upstream portions；

3p parts；

5 outer panels, 5a continuous webs (the second continuous sheet)；

10 manufacturing equipments；

11 continuous film conveyers (the first conveyer), 12 endless belts；

20 anvil roller mechanisms (holding roller mechanism)；

21 anvil rollers (maintaining roller), 21a outer surfaces, 21ap ledges；

21c angle parts, the angle part at downstream end in 21ce holding areas；

21p planar sections (face part)；

21h SSs (hole)；

23 receive blade (blade members)；

31 cutting rollers, 33 cutting blades；

40 integrated structures, 41 transport roller (conveyer)；

43 pressure rollers, 43a outer surfaces；

70 adhesive application devices；

A2 regions, A3 regions；

R1 holding areas, the non-holding areas of R2, R5 regions, remaining region of R6；

P3e1 downstream positions, P23e1 receives the position of the downstream end edge of blade；

P31 placement locations, P43 placement locations；Pwst winding start positions；

C21 rotation axis, C41 rotation axis, C43 rotation axis；

CL gaps, SP spaces

Claims

1. it is a kind of for manufacture for the complex of the continuous sheet of absorbent article manufacture method, methods described is continuous from first Sheet material cuts and produces cutting sheet material and the cutting sheet material is covered and is attached on the second continuous sheet, wherein, it is located at Have between the adjacent cutting sheet material in the continuous direction along second continuous sheet on second continuous sheet Interval, methods described includes：

By the use of the first conveyer using the first travelling speed value along the continuous of first continuous sheet as carriage direction Transport first continuous sheet in direction；

Make maintaining roller and rotated with the periphery velocity amplitude higher than the first travelling speed value, and will transport from the described first transport First continuous sheet of mechanism is maintained on the outer surface of the maintaining roller, while allowing the first continuous sheet phase It is relative backward for the outer surface of the maintaining roller to slide；

Institute is cut and produced from first continuous sheet by being engaged clamping first continuous sheet with blade members Cutting sheet material is stated, wherein, the blade members are arranged on the outer surface of the maintaining roller；With

The second continuous sheet is supplied towards the cutting sheet material, and the cutting sheet material is covered and to be attached to described second continuous On sheet material, wherein, the cutting sheet material is maintained on the outer surface of the maintaining roller, with edge in the way of not relative slip The direction of rotation for the maintaining roller cutting sheet material is transported with the periphery velocity amplitude；

Wherein, each face part is along the adjacent mode in the direction of rotation to be formed on the outer surface of the maintaining roller, And adjacent face part is linked by angle part, the angle part with what the carriage direction intersected along crisscross prolonging Stretch；

Wherein, the outer surface of the maintaining roller has the holding area for being configured to keep the cutting sheet material and does not construct Into the non-holding area for keeping the cutting sheet material, the holding area and the non-holding area are along the rotation side To region,

The holding area is formed with the angle part, and

The non-holding area includes not being formed with the region of the angle part.

2. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In,

The outer surface of the maintaining roller has the holding area for being configured to keep the cutting sheet material, and the holding area is edge The region of the direction of rotation, and

The angle part is at least formed in the holding area.

3. it is according to claim 1 and 2 for manufacture for absorbent article continuous sheet complex manufacture method, Wherein,

Multiple angle parts are formed in the whole holding area.

4. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In,

The outer surface of the maintaining roller is formed with the plurality of angle part on the whole girth along the direction of rotation.

5. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In,

The outer surface of the maintaining roller has the region of the end of downstream side part for being configured to keep the cutting sheet material, construction It is the region along the direction of rotation into the region for keeping the end of downstream side part for cutting sheet material, and

The angle part is at least formed at being configured to keep in the region of the downstream end part.

6. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In,

It is planar section to be adjacent to the face part being formed on the outer surface of the maintaining roller with the angle part.

7. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In,

The outer surface of the maintaining roller is provided with multiple holes,

Angle part described in multiple Kong Yu is adjacent to every in the multiple face parts being formed on the outer surface of the maintaining roller In one along it is described it is crisscross be arranged side by side, and

The hole is configured to that first continuous sheet and the cutting sheet material are maintained at into the guarantor by aspirating via hole Hold on the outer surface of roller.

8. it is according to claim 7 for manufacture for absorbent article continuous sheet complex manufacture method, its In,

The distribution density in the plurality of hole in the face part than on the outer surface of the maintaining roller except the face Distribution density in/outer remainder is high.

9. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In, implement to combine by combining mechanism,

The combining mechanism includes：

Conveyer, the conveyer of the combining mechanism is configured to big with the periphery velocity amplitude of the maintaining roller The velocity amplitude of body phase etc. transports second continuous sheet；With

Pressure roller, the pressure roller is configured to be pressed against second continuous sheet and is maintained on the outer surface of the maintaining roller Cutting sheet material on, with implement combine；And

The average diameter of the diameter of the pressure roller and the maintaining roller is non-integer multiple.

10. it is according to claim 1 for manufacture for absorbent article continuous sheet complex manufacture method, its In, the angle part is along the crisscross linear extension intersected with the carriage direction.

The manufacture method of the complex of 11. continuous sheets for being used for absorbent article for manufacture according to claim 1, its In, the shape of cross section of the maintaining roller is convex polygon.

The manufacture method of the complex of 12. continuous sheets for being used for absorbent article for manufacture according to claim 1, its In, the shape of cross section of the maintaining roller is regular polygon.

The manufacture method of the complex of 13. continuous sheets for being used for absorbent article for manufacture according to claim 1, its In, the face part and the angle part are formed on the projections, the outer surface of the ledge and the maintaining roller Peripheral part compare along the maintaining roller radial direction outwardly.

14. it is a kind of for manufacture for absorbent article continuous sheet complex manufacturing equipments, the equipment be configured to from First continuous sheet cuts and produces cutting sheet material and the cutting sheet material is covered and is attached on the second continuous sheet, Wherein, the adjacent cutting sheet material in the continuous direction along second continuous sheet on second continuous sheet Between there is interval, the equipment includes：

First conveyer, first conveyer is configured to using the first travelling speed value along as described in carriage direction Transport first continuous sheet in the continuous direction of the first continuous sheet；

Roller mechanism, the holding roller mechanism is kept to include maintaining roller, the maintaining roller is provided with the periphery of the maintaining roller At least one blade members, the holding roller mechanism is configured to make the maintaining roller with outer higher than the first travelling speed value Peripheral speed angle value rotates, and is configured to for transport to be maintained at the guarantor from first continuous sheet of first conveyer Hold on the outer surface of roller, and while allow first continuous sheet relative backward relative to the outer surface of the maintaining roller Slide；

Cutting roller, the cutting roller be configured to by with the blade members phase being arranged on the outer surface of the maintaining roller Coordinate clamping first continuous sheet and cutting sheet material is cut and produced from first continuous sheet；With

Combining mechanism, the combining mechanism is configured to supply second continuous sheet towards the cutting sheet material, and by institute State cutting sheet material to cover and be attached on second continuous sheet, wherein, the cutting sheet material is not by with respect to the side slided Formula is maintained on the outer surface of the maintaining roller, to be transported with the periphery velocity amplitude along the direction of rotation of the maintaining roller Cutting sheet material；

Wherein, each face part is being formed in the outer surface of the maintaining roller along direction of rotation mode adjacent to each other On, and adjacent described facial lease making by angle part link, the angle part along with intersecting that the carriage direction intersects Direction extends；

The holding area is formed with the angle part, and