CN104349757A

CN104349757A - Method for manufacturing composite body of continuous sheets for absorbent article and apparatus of the same

Info

Publication number: CN104349757A
Application number: CN201380030293.1A
Authority: CN
Inventors: 小笠原吉一; 石川慎一
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2012-07-06
Filing date: 2013-07-03
Publication date: 2015-02-11
Anticipated expiration: 2033-07-03
Also published as: WO2014006902A1; JP2015521865A; JP6220795B2; CN104349757B

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

For the manufacture of method and the equipment thereof of the complex of the continuous sheet for absorbent article

Technical field

The present invention relates to the method and apparatus of the complex for the manufacture of the continuous sheet for absorbent article (such as disposable diaper).

Background technology

Usually, in the production line of the absorbent article for such as disposable diaper and sanitary towel, as shown in Figure 1, cut from continuous film 103a and produce the cutting film 103 with predetermined length, and the cutting film 103,103 formed, to adhere to predetermined adhesion pitch on the continuous sheet 105a be made up of non-woven fabrics etc. along the continuous direction of continuous sheet 105a, wherein, between adjacent cutting film 103,103, there is interval.

As an example of said method, PTL1 discloses a kind of method, and described method uses: anvil roller 121, and described anvil roller 121 circumferentially Dc rotates; Cutting roller 131, described cutting roller 131 is positioned to relative with anvil roller 121, so that synchronous rotary; With pressure roller 143, described pressure roller 143 circumferentially Dc is positioned on the downstream of cutting roller 131.

Reference listing

Patent documentation

【PTL1】JP 2007-260875A

Summary of the invention

Technical problem

In order to more specifically describe said method, first, the substantially whole outer surface 121a of anvil roller 121 arranges suction section (not shown), described suction section suction continuous film 103a, to keep continuous film, wherein said anvil roller 121 rotates with predetermined periphery velocity amplitude V121.Continuous film 103a is transported to outer surface 121a.In this regard, the travelling speed value V103a of continuous film 103a is set to be less than the value of periphery velocity amplitude V121.Therefore, while permission part 103e is relative to outer surface 121a slippage (slip), the outer surface 121a of anvil roller 121 keeps the part 103e being positioned at leading edge place of continuous film 103a with surface contact conditions.

Meanwhile, on the outer surface 121a of anvil roller 121, be provided with and receive blade 123, for receiving the cutting blade 133 of cutting roller 131.When receiving blade 123 through placing the position of cutting roller 131, continuous film 103a on outer surface 121a is clamped in the cutting blade 133 of cutting roller 131 and receives between blade 123, to cut and to be separated the part 103e at its leading edge place, thus produce cutting film 103.

Then, the cutting film 103 cut is remained on the outer surface 121a of anvil roller 121 with the state of not relative sliding from continuous film 103a, and therefore with the periphery velocity amplitude V121 of anvil roller 121 circumferentially Dc transport described cutting film 103.Now, based on the speed difference between periphery velocity amplitude V121 and above-mentioned travelling speed value V103a, between current cutting film 103 and the cutting film 103 cut subsequently, form interval D 103.

Finally, when the cutting film 103 circumferentially position towards pressure roller 143 of Dc in transport path, cutting film 103 sticks on serialgram 105a, transports described continuous sheet 105a with the velocity amplitude V105a substantially identical with periphery velocity amplitude V121 on pressure roller 143.By this way, cutting film 103 sticks on continuous sheet 105a, wherein, there is interval between adjacent cutting film 103.

But, the present inventor have been noted that the very thin and cutting film 103 of softness sometimes (such as when cutting film 103 and being adsorbed on the outer surface 121a of anvil roller 121) wrinkling possibly.If wrinkling cutting film 103 adheres on continuous sheet 105a, then this fold can retain on the final product.According to product, this not only may damage outward appearance but also adversely can affect the former function of product enforcement.Such as, when cutting film 103 and being for preventing liquid to be leaked to outside leakproof film from the absorber of disposable diaper, fold may be used as the groove that liquid discharges can flow through, thus causes fluid leakage, and therefore significantly reduces the commodity value of diaper.

In view of above-mentioned FAQs contemplates the present invention, and the object of the invention is to prevent or alleviate cutting sheet material corrugation, thisly wrinklingly may such as to occur when the cutting film cut from the first continuous sheet is attached to the second continuous sheet to manufacture the complex of continuous sheet.

The solution of problem

In order to solve the problem, a primary aspect of the invention relates to a kind of manufacture method of the complex for the manufacture of the continuous sheet for absorbent article, described method is cut from the first continuous sheet and is produced cutting sheet material and covered by described cutting sheet material and be attached to the second continuous sheet, wherein, have interval between the described cutting sheet material adjacent along the continuous direction of described second continuous sheet on described second continuous sheet, described method comprises:

The continuous direction of the first conveyer using the first travelling speed value along described first continuous sheet as carriage direction is utilized to transport described first continuous sheet;

Maintaining roller is rotated with the periphery velocity amplitude higher than described first travelling speed value, and described first continuous sheet from described first conveyer is remained on the outer surface of described maintaining roller, allows described first continuous sheet relative to the outer surface relative sliding backward of described maintaining roller simultaneously;

Clamp described first continuous sheet cut from described first continuous sheet by matching with blade members and produce described cutting sheet material, wherein, described blade members is arranged on the outer surface of described maintaining roller; With

Towards described cutting feeding sheet materials second continuous sheet, and described cutting sheet material is covered and is attached on described second continuous sheet, wherein, described cutting sheet material is remained on the outer surface of described maintaining roller by the mode with not relative sliding, transports cutting sheet material with the direction of rotation along described maintaining roller with described periphery velocity amplitude;

Wherein, each face portion is formed on the outer surface of described maintaining roller in the mode adjacent along described direction of rotation, and adjacent face portion is linked by angle part, and described angle part is along the crisscross extension intersected with described carriage direction.

Another aspect of the present invention relates to a kind of manufacturing equipment of the complex for the manufacture of the continuous sheet for absorbent article, described equipment is configured to cut from the first continuous sheet and produce cutting sheet material and covered by described cutting sheet material and be attached to the second continuous sheet, wherein, have interval between the described cutting sheet material adjacent along the continuous direction of described second continuous sheet on described second continuous sheet, described equipment comprises:

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

Maintaining roller mechanism, described maintaining roller mechanism comprises maintaining roller, described maintaining roller is provided with at least one blade members on the periphery of described maintaining roller, described maintaining roller mechanism construction becomes to make described maintaining roller to rotate with the periphery velocity amplitude higher than described first travelling speed value, and be configured to described first continuous sheet from described first conveyer to remain on the outer surface of described maintaining roller, and allow described first continuous sheet relative to the outer surface relative sliding backward of described maintaining roller simultaneously;

Cutting roller, described cutting roller is configured by match to clamp described first continuous sheet and cut from described first continuous sheet and produce with the described blade members on the outer surface being arranged on described maintaining roller and cuts sheet material; With

Combining mechanism, described combining mechanism is configured to towards the second continuous sheet described in described cutting feeding sheet materials, and described cutting sheet material is covered and is attached on described second continuous sheet, wherein, described cutting sheet material is remained on the outer surface of described maintaining roller by the mode with not relative sliding, transports cutting sheet material with the direction of rotation along described maintaining roller with described periphery velocity amplitude;

Wherein, each face portion is formed on the outer surface of described maintaining roller in the mode adjacent one another are along described direction of rotation, and adjacent described face portion links via angle part, and described angle part is along the crisscross extension intersected with described carriage direction.

With reference to accompanying drawing, further feature of the present invention becomes apparent from the description of this description.

Beneficial effect of the present invention

According to the present invention, can prevent or reduce the fold produced when cutting sheet material (the cutting film such as produced from the first continuous sheet cutting) and being attached to the second continuous sheet to manufacture the complex of continuous sheet.

Accompanying drawing explanation

[Fig. 1] Fig. 1 is the schematic side elevation of traditional manufacturing equipment 110.

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

[Fig. 2 B] Fig. 2 B is the schematic plan view 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 is the external perspective view of innovative anvil roller 21, its for prevent or alleviate cutting film 3 wrinkling.

[Fig. 4 B] Fig. 4 B is the schematic enlarged view 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 is the external perspective view of anvil roller 21, and wherein, planar section 21p and angle part 21c is only formed in the retaining zone R1 on outer surface 21a.

[Fig. 6 B] Fig. 6 B is the partial enlarged view of the outer surface 21a of roller 21.

[Fig. 7 A] Fig. 7 A is the external perspective view of anvil roller 21, and wherein, planar section 21p and angle part 21c is only formed in the region R5 on outer surface 21a.

[Fig. 7 B] Fig. 7 B is the partial enlarged view of the outer surface 21a of roller 21.

Detailed description of the invention

With reference to accompanying drawing, from the description of this description, at least following item will become apparent.Mode only by example describes embodiments of the invention.

A kind of manufacture method of the complex for the manufacture of the continuous sheet for absorbent article, described method is cut from the first continuous sheet and is produced cutting sheet material, and cutting sheet material is covered and is attached on the second continuous sheet, wherein, the continuous direction of the cutting sheet material mutually adjoined along the second continuous sheet on the second continuous sheet is spaced from each other, and described method comprises:

The first conveyer is utilized to transport the first continuous sheet using the first travelling speed value along the continuous direction of the first continuous sheet as carriage direction;

Maintaining roller is rotated with the periphery velocity amplitude higher than the first travelling speed value, and the first continuous sheet from the first conveyer is remained on the outer surface of maintaining roller, allows the first continuous sheet relative to the outer surface relative sliding backward of maintaining roller simultaneously;

By matching clamping first continuous sheet and cut from the first continuous sheet and produce and cut sheet material with blade members, described blade members is arranged on the outer surface of maintaining roller; With

Towards cutting feeding sheet materials second continuous sheet, and cutting sheet material is covered and is attached on the second continuous sheet, wherein said cutting sheet material is remained on the outer surface of maintaining roller by the state with not relative sliding, to transport described cutting sheet material with described periphery velocity amplitude along the direction of rotation of maintaining roller

Wherein, independent face portion is formed on the outer surface of maintaining roller along direction of rotation adjacent to each other, and the face portion of adjoining links via angle part, and described angle part is along the crisscross extension intersected with carriage direction.

According to the manufacture method of the above-mentioned complex for the manufacture of continuous sheet, the outer surface of maintaining roller forms the angle part along the crisscross extension intersected with carriage direction.Therefore, when the first continuous sheet relative to outer surface backward relative sliding time, the first continuous sheet is slightly captured on angle part, thus draws described first continuous sheet along the direction of rotation of maintaining roller, smooths the fold on the first continuous sheet thus fast.Therefore, it is possible to prevent or restricted passage from first continuous sheet cutting and produce cutting sheet material corrugation.

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

In the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, it is intended that

The outer surface of maintaining roller has the retaining zone causing and keep cutting sheet material, and this retaining zone is a region along direction of rotation, and

Angle part is formed at least described retaining zone.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, angle part be at least formed in maintaining roller along in the above-mentioned retaining zone in the region of direction of rotation.Therefore, when the first continuous sheet relative to outer surface backward relative sliding time, the angle part in retaining zone is at least through the upstream-side-end part of a part corresponding to cutting sheet material of the first continuous sheet.By this arrangement, angle part can smooth the fold in this upstream-side-end part, result, can prevent or restricted passage from first continuous sheet cut off and produce cutting sheet material corrugation.

The outer surface of maintaining roller has: retaining zone, and described retaining zone is configured to keep cutting sheet material; With non-retaining zone, described non-retaining zone is configured to not keep cutting sheet material, and wherein, described retaining zone and non-retaining zone are the region along direction of rotation,

Retaining zone is formed with angle part, and

Non-retaining zone comprises the region not forming angle part.

According to the manufacture method of the above-mentioned complex for the manufacture of continuous sheet, angle part and face portion need not be formed on the whole outer surface of maintaining roller.This can reduce the cost needed for outer surface and the manpower of process maintaining roller.

And, because angle part is formed in the retaining zone keeping cutting sheet material, so the fold at least partially of the part corresponding to cutting sheet material can be smoothed when cutting sheet material and being in the state of the first continuous sheet.

In the above-mentioned manufacture method for the manufacture of the continuous sheet complex for absorbent article, it is intended that

Multiple angle part is formed in whole retaining zone.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, in the whole above-mentioned retaining zone in the region of direction of rotation, form multiple angle part being in of maintaining roller.Therefore, when the first continuous sheet relative to outer surface backward relative sliding time, the angle part being positioned at the end of downstream side place of retaining zone necessarily passes the substantially whole length corresponding to the part of cutting film of the first continuous sheet.Therefore, this angle part can smooth corresponding to the fold in the substantially whole length of the part of this cutting sheet material.As a result, can prevent or alleviate that to cut the cutting sheet material of generation from the first continuous sheet wrinkling over the whole length.And utilize the multiple angle parts be formed in whole retaining zone, during relative sliding, multiple angle part is through the part corresponding to above-mentioned cutting sheet material of the first continuous sheet.As a result, significant flat wrinkle effect can be obtained.

The outer surface of maintaining roller has and is formed in whole multiple angle parts circumferentially along direction of rotation.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, multiple angle part is circumferentially formed on the outer surface of maintaining roller along direction of rotation whole.Therefore, when the first continuous sheet is relative to outer surface relative sliding, there is the part corresponding to cutting sheet material of an angle part in angle part to the first continuous sheet to implement flat wrinkle operation, result all the time, significant flat wrinkle effect can be obtained.

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

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

According to the manufacture method of the above-mentioned complex for the manufacture of continuous sheet, above-mentioned angle part is formed in the region of the end of downstream side part for keeping cutting sheet material of outer surface.Therefore, when the first continuous sheet relative to outer surface backward relative sliding time, this angle part is inevitable at least advance along the region corresponding to a part for the end of downstream side part of cutting sheet material from the part corresponding to the upstream-side-end part of cutting sheet material of the first continuous sheet to the first continuous sheet.By this arrangement, angle part can smooth the fold in the substantially whole length corresponding to the part of above-mentioned cutting sheet material of the first continuous sheet, as a result, can prevent or suppress the cutting sheet material by producing from the first continuous sheet cutting wrinkling over substantially the entire length thereof.

And in some cases, angle part and face portion only can be formed in the region for keeping the end of downstream side part of cutting sheet material in the region be arranged in along direction of rotation.In these cases, the cost needed for outer surface and the manpower of process maintaining roller can significantly be reduced.

Above-mentioned for the manufacture of for absorbing in the manufacture method of continuous sheet complex of product, it is intended that

Adjacent from corners divides the face portion be formed on the outer surface of maintaining roller to be planar section.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, above-mentioned face portion is planar section.Therefore, when angle part and the coupling position of above-mentioned face portion adjacent thereto through being connected with the second continuous sheet, first, cutting sheet material is pressed against on the second continuous sheet by angle part, to implement to combine.After this, use the part combined by angle part as the pivotal point rotated, the part remaining on the cutting sheet material on the planar section of the upstream side that adjacent from corners is divided tilts towards the second continuous sheet simultaneously, and above-mentioned part covers on the second continuous sheet thus.Therefore, each corresponding in multiple parts of above-mentioned face portion of cutting sheet material all can cover on the second continuous sheet, and its stability can be identical with when having stability when being folded on described second sheet material by using corresponding broken line to make multiple parts of segmentation tilt successively one by one as starting point for the formation of the sheet material of polygonal broken line.Therefore, even if when being stacked on the second continuous sheet, also easily can keeping cutting multiple parts of sheet material and being in flat condition, result, can have effectively prevent wrinkling.

And, because the above-mentioned face portion of adjoining the angle part of upstream side is plane, so compared with the situation being curved surfaces with this face portion, can form wide wedge shape space between the part remaining on the cutting film in above-mentioned face portion and the second continuous sheet, and this allows easily from this space air-out.Therefore, it is possible to effectively prevent air from entering into the space between cutting sheet material and the second continuous sheet during combining and be sealed in the situation in described space, result, also can prevent crowned fold.

In the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbing product, it is intended that

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

Multiple Kong Yu angle part is adjacent to be formed in each in the multiple face portion on the outer surface of maintaining roller and is arranged side by side along crisscross, and

Hole is configured by via hole suction and the first continuous sheet and cutting sheet material is remained on the outer surface of maintaining roller.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, because multiple above described holes is formed in each in above-mentioned multiple face portion, so each face portion all reliably can keep the corresponding part cutting sheet material, and this also contributes to preventing or suppress wrinkling.

The distribution density in the multiple holes in face portion is higher than the distribution density of the other parts except described face portion of the outer surface of maintaining roller.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, during by the flat wrinkle in angle part, can firmly be aspirated by the face portion be positioned at along direction of rotation on both sides, angle part and keep the first continuous sheet.This can strengthen the flat wrinkle effect of angle part.

In the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, desirably implement to combine by combining mechanism,

Described combining mechanism comprises

Conveyer, the velocity amplitude that described conveyer is configured to the periphery velocity amplitude substantially equaling maintaining roller transports the second continuous sheet; With

Pressure roller, described pressure roller is configured to the second continuous sheet to be pressed against on the cutting sheet material that is maintained on the outer surface of maintaining roller, to implement to combine, and

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

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, be non-integral multiple relation between the diameter of pressure roller and the average diameter of maintaining roller.Therefore, it is possible to the above-mentioned angle part effectively preventing to be positioned on the outer surface of maintaining roller is all the time against the situation of the ad-hoc location on the outer surface of pressure roller.In other words, the position abutted with the above-mentioned angle part of maintaining roller on the outer surface of pressure roller can be moved along direction of rotation along with rotating at every turn, thus the position abutted with angle part that scatter.By this arrangement, effectively can prevent the outer surface uneven wear (concentrated wear) of pressure roller, result, can this gap be in target zone the gap easily managed between maintaining roller and pressure roller for a long time, wrinkling and in conjunction with the angle of accuracy from preventing, accurately should manage and regulate described gap.

In the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, desirably

Angle part is along the crisscross straight-line extension intersected with carriage direction.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, because above-mentioned angle part is formed as along crisscross straight-line extension, so can apply along crisscross the tension force removing fold substantially equably.And therefore, it is possible to improve anti-corrugation effect.

The cross section of maintaining roller is convex polygon.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, the shape of cross section of maintaining roller is convex polygon.Therefore, the first continuous sheet is inevitable to be pulled further by the direction of rotation along maintaining roller, removes the fold existed in the first continuous sheet thus fast.As a result, fold can be suppressed further to be formed in cut and the cutting sheet material produced from this first continuous sheet.

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

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, the shape of cross section of maintaining roller is regular polygon, the periphery speed value difference between the face portion making it possible to control maintaining roller for whole circumference.

Face portion and angle part are formed on the projections, described ledge compared with peripheral part of the outer surface of maintaining roller along the radial direction of maintaining roller outwardly.

According to the manufacture method of the above-mentioned complex for the manufacture of the continuous sheet for absorbent article, face portion and angle part are formed on the projections.Therefore, the first continuous sheet is inevitable to be pulled further by the direction of rotation along maintaining roller, removes the fold existed in the first continuous sheet thus further rapidly.And result, can suppress to cut from the first continuous sheet and the cutting sheet material produced forms fold further.

In addition, a kind of manufacturing equipment of the complex for the manufacture of the continuous sheet for absorbent article, described equipment is configured to cut from the first continuous sheet and produce cutting sheet material and covered by cutting sheet material and be combined in the second continuous sheet, wherein, have interval between the cutting sheet material adjacent one another are along the continuous direction of the second continuous sheet on the second continuous sheet, described equipment comprises:

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

Maintaining roller mechanism, described maintaining roller mechanism comprises maintaining roller, described maintaining roller is provided with at least one blade members on the outer surface of maintaining roller, maintaining roller mechanism construction becomes to make maintaining roller to rotate with the periphery velocity amplitude higher than the first travelling speed value, and is configured to remain on the outer surface of maintaining roller by the first continuous sheet from the first conveyer while relative sliding at permission first continuous sheet backward relative to the outer surface of maintaining roller;

Cutting roller, described cutting roller is configured by clamping first continuous sheet and cut from the first continuous sheet and produce and cut sheet material of matching with blade members, and wherein, described blade members is arranged on the outer surface of maintaining roller; With

According to the manufacturing equipment of the above-mentioned complex for the manufacture of continuous sheet, the angle part along the crisscross extension intersected with carriage direction is formed on the outer surface of maintaining roller.Therefore, when the first continuous sheet relative to this outer surface backward relative sliding time, first continuous sheet is caught slightly or is otherwise combined on angle part, thus cause described first continuous sheet to be pulled by the direction of rotation along maintaining roller, smooth the fold on the first continuous sheet thus fast.Therefore, it is possible to prevent or suppress from the first continuous sheet cutting and this cutting sheet material corrugation of generation.

===embodiment===

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

Dorsal part sheet material 1 shown in Fig. 2 A is composite sheet 1, and described composite sheet 1 comprises: outer sheet material 5, and described outer sheet material 5 forms the outside of diaper; The impermeable leakproof film 3 of liquid, described leakproof film 3 adheres to the inner surface (being positioned at the surface on wearer skin side) of outer sheet material 5.On leakproof film 3, unshowned by formed successively the absorber that paper pulp fiber makes, unshowned fluid permeable front side sheet material etc. stacked on top of each other and be fixed, produce the base material of diaper thus.

The examples of materials of outer sheet material 5 comprises soft non-woven fabrics etc., and uses non-woven fabrics in this illustration, and wherein, described non-woven fabrics has the resin fibre as main material.The examples of materials of leakproof film 3 comprises soft resin molding (polyethylene film) etc., and uses resin molding in this illustration.

As shown in Figure 2 B, the intermediate member 1a as the original sheet material for dorsal part sheet material 1 had been continuum by be divided into multiple unit of dorsal part sheet material 1 with product pitch P before.Namely, intermediate member 1a comprises the continuous web 5a be made up of the non-woven fabrics of the original fabrics as outer sheet material 5, and there is multiple leakproof film 3,3 cut out ..., these leakproof films cut out stick on continuous web 5a along continuous direction with the adhesion pitch P3 substantially identical with product pitch P.The manufacturing equipment 10 of the present embodiment manufactures this intermediate member 1a.In other words, first manufacturing equipment 10 cuts from the continuous film 3a as the original membrane for leakproof film 3 and produces the cutting film 3 as leakproof film 3, and cutting film 3 is covered as on the continuous web 5a of the original fabrics of outer sheet material 5 along continuous direction to adhere to pitch P3, and cutting film 3 is attached on described continuous web 5a, produce intermediate member 1a thus.But the present invention is not limited to and manufactures this intermediate member 1a.

Manufacturing equipment 10 will be described in detail 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 direction is orthogonal to carriage direction, and described carriage direction is the continuous direction of continuous film 3a, and CD direction is corresponding to " crisscross " and along the direction orientation penetrating paper plane.And CD direction is parallel to the width of the continuous web 5a for outer sheet material 5.It should be noted that any direction being orthogonal to CD direction is also referred to as " MD direction ".In other words, MD direction is any direction of the paper plane being parallel to Fig. 3, and in other words, MD direction is any direction limited by orthogonal above-below direction as shown in Figure 3 and fore-and-aft direction.

And " continuous film 3a " and " cutting film 3 " corresponds respectively to " the first continuous sheet " and " cutting sheet material ", and " continuous web 5a " corresponds to " the second continuous sheet ".

As shown in Figure 3, manufacturing equipment 10 comprises: (1) continuous film conveyer 11, and described continuous film conveyer 11 transports continuous film 3a with the first travelling speed value V3a along MD direction; (a) anvil roller mechanism 20, described anvil roller mechanism 20 makes anvil roller 21 rotate with the periphery velocity amplitude V21 higher than the first travelling speed value V3a, thus transport remained on the outer surface 21a of anvil roller 21 from the continuous film 3a of continuous film conveyer 11, and allow continuous film 3a relative to outer surface 21a relative sliding backward simultaneously; (3) cutting roller 31, described cutting roller 31 is by being clamped in cutting roller 31 and receiving between blade 23 cut from continuous film 3a and produce cutting sheet material 3 by continuous film 3a, described reception blade 23 is placed on the outer surface 21a of anvil roller 21; (4) combining mechanism 40, described combining mechanism 40 supplies towards cutting film 3 the continuous web 5a being used for outer sheet material 5 with the second travelling speed value V5a, thus cutting film 3 covered and be attached on continuous web 5a, wherein, this cutting film 3 cuts out from continuous film 3a and is remained on the outer surface 21a of anvil roller 21 by the mode with not relative sliding, and described second travelling speed value V5a is substantially equal with above-mentioned periphery velocity amplitude V21.

Continuous film conveyer 11 (corresponding to the first conveyer) is such as sucking type band transporter.Namely, continuous film conveyer 11 has endless belt 12, described endless belt 12 has multiple suction socket (not shown), the outer surface being used as to transport surface that described multiple suction socket forms through endless belt 12 is formed, and described continuous film conveyer 11 by the suction via described suction socket, continuous film 3a is drawn into endless belt 12 outer surface on and keep continuous film 3a and this outer surface to be in surface contact conditions.Endless belt 12 is driven, so that go in ring with this aspiration phases, thus transports continuous film 3a with above-mentioned first travelling speed value V3a along MD direction.It should be noted that continuous film conveyer 11 is not limited to sucking type band transporter.Such as, can use pinch roll device etc., described pinch roll device utilizes rotation in the opposite direction and on close to each other a pair, driven roller and lower driven roller transport continuous film 3a while clamping continuous film 3a.

Anvil roller mechanism 20 (corresponding to maintaining roller mechanism) has the anvil roller 21 as main body, and described anvil roller 21 is rotated around the rotation axis C21 extended along CD direction by driving.The outer surface 21a of anvil roller 21 has to come up the maintenance function of retention tab shape object by board is wound on surface with the state of surface contact, and relies on this function to come to keep continuous film 3a and cutting film 3 with surface contact conditions.In this illustration, by multiple suction socket 21h, 21h ... (not shown in Fig. 3; See Fig. 4 A and 4B) realize this maintenance function, described multiple suction socket 21h, 21h ... through outer surface 21a is formed.That is, by via suction socket 21h, 21h ... aspirate, the outer surface 21a of anvil roller 21 bears suction force, and suction force becomes the retentivity for keeping above-mentioned continuous film 3a and cutting film 3.It should be noted that method retentivity being applied to outer surface 21a is not limited thereto.Such as, can make alternatively, such as, use the method for electrostatic attraction.

Along the cardinal principle tangential direction of outer surface 21a, above-mentioned continuous film 3a is supplied to the outer surface 21a of anvil roller 21, and with surface contact conditions described continuous film 3a is reeled by above-mentioned retentivity and remain on outer surface 21a.Start the position Pwst be wound on outer surface 21a is positioned at the upstream side of the placement location P31 of cutting roller 31 predetermined angular place along direction of rotation Dc.

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

Receiving blade 23 (corresponding to blade members) is arranged on the outer surface 21a of anvil roller 21, and described reception blade 23 receives the cutting blade 33 of cutting roller 31.When receiving the placement location P31 of blade 23 through cutting roller 31, continuous film 3a on outer surface 21a is clamped in and receives between blade 23 and the cutting blade 33 of cutting roller 31, described cutting roller 31 rotates in response to the motion of anvil roller 31, cut continuous film 3a thus, to be separated a part of 3e at the leading edge place of continuous film 3a.The separate section 3e at leading edge place becomes cutting film 3.

After this, remain on the outer surface 21a of anvil roller 21 by isolated cutting film 3 in the mode of not relative sliding, the mode be combined into one to cut film 3 and outer surface 21a along direction of rotation Dc towards downstream with the periphery velocity amplitude V21 of anvil roller 21 is thus transported and is cut film 3.Now, based on the speed difference between periphery velocity amplitude V21 and the travelling speed value V3a of above-mentioned continuous film 3a, at current cutting film 3 with cut subsequently and produce interval D 3 between the cutting film 3 produced.

Combining mechanism 40 is positioned at the position in the downstream of the placement location P31 of cutting roller 31 along direction of rotation Dc.Combining mechanism 40 has conveyer 41 (such as transport roller 41), described conveyer 41 transports with the velocity amplitude V5a substantially equaling the periphery velocity amplitude V21 of anvil roller 21 the continuous web 5a being used for outer sheet material 5 along a transport path (this transport path generally along the tangential direction of the outer surface 21a of anvil roller 21), and described combining mechanism 40 also has pressure roller 43, the above-mentioned continuous web 5a advanced along above-mentioned transport path is pressed against on the cutting sheet material 3 that is maintained on the outer surface 21a of anvil roller 21 by described pressure roller 43.

In this illustration, it is circular roller 41 that conveyer 41 comprises shape of cross section, and each in these rollers 41 is rotated around the rotation axis C41 extended along CD direction by driving.Pressure roller 43 is also shape of cross section is circular roller, and described pressure roller 43 is such as rotated around the rotation axis C43 extended along CD direction by driving, and the periphery velocity amplitude V43 of pressure roller 43 is controlled so as to the periphery velocity amplitude V21 substantially equaling anvil roller 21.It is to be noted, however, that pressure roller 43 can be driven voller, described driven voller utilizes the revolving force obtained by contacting with continuous web 5a to rotate.

To the placement location P43 of the cutting film 3 on the outer surface 21a of anvil roller 21 through pressure roller 43, hotmelt has been applied to the face towards continuous web 5a in two surfaces of cutting film 3.Such as, in the example of fig. 3, through the placement location of hotmelt application devices 70 before cutting film 3 is on the outer surface 21a being maintained at anvil roller 21, hotmelt is applied.

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

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

Incidentally, prevent or alleviate enforcement on the wrinkling outer surface 21a operating in anvil roller 21 of cutting film 3.Fig. 4 A is the perspective external view of the anvil roller 21 implementing this operation, and Fig. 4 B is the schematic expanded view of the part of this operation of enforcement of outer surface 21a.

As apparent from Fig. 4 A, be formed in along the multiple banded planar section 21p in CD direction along direction of rotation Dc (except being positioned with the part of reception blade 23) on the whole outer surface 21a of anvil roller 21.Therefore, anvil roller 21 has the shape of regular polygon cylinder on the whole, and its shape of cross section is regular polygon.More specifically, planar section 21p, 21p ... there is identical rectangular shape, each planar section 21p, 21p ... all have along the long limit in CD direction and the minor face along direction of rotation Dc.Equally, as shown in Figure 4 B, along planar section 21p, 21p that direction of rotation Dc adjoins ... be interconnected via the rectilinear angle part 21c extended along CD direction.It should be noted that planar section 21p corresponds to face portion 21p.

Utilize and this there is on outer surface 21a multiple angle part 21c, 21c ... the anvil roller 21 of regular polygon shape, when remaining on the direction of rotation Dc of the continuous film 3a on outer surface 21a relative to roller 21 and relatively sliding backward along outer surface 21a, continuous film 3a is by angle part 21c, 21c of being captured in slightly on outer surface 21a ... on, cause continuous film 3a to be pulled to downstream along direction of rotation Dc, the fold of continuous film 3a can be smoothed thus fast.Owing to producing cutting film 3 by cutting from this continuous film 3a that smooths, therefore, it is possible to prevent or alleviate that to cut film 3 wrinkling.

And, in this illustration, because angle part 21c is formed as straight line along CD direction, so can be applied for along CD direction the tension force smoothing fold substantially equably.This also contributes to preventing or reduce wrinkling.

And, utilize this anvil roller 21 with the shape of cross section of regular polygon, can also effectively prevent when cutting film 3 is attached to continuous web 5a contingent wrinkling.Fig. 5 is the explanatory diagram of this characteristic, and Fig. 5 is the schematic enlarged view of the part near pressing roller 43.

As shown in Figure 5, each angle part 21c on the outer surface 21a of anvil roller 21 and contiguous planar section 21p thereof is when the placement location P43 (namely with the position P5a that continuous web 5a is combined) of pressure roller 43, first, cutting film 3 is pressed against on continuous web 5a by angle part 21c, to implement to combine.After this, use the part 3c combined with angle part 21c of cutting film 3 as the pivotal point rotated, the adjacent from corners that remains on of cutting film 3 divides the part 3p on the above-mentioned planar section 21p of the upstream side of 21c basic simultaneously towards continuous web 5a inclination, and above-mentioned part 3p covers on continuous web 5a thus.Therefore, the corresponding to the various piece 3p of above-mentioned plane 21p and can be stacked on continuous web 5a of cutting sheet material 3, and the stability obtained with when using have for the formation of the sheet material of polygonal broken line pass through to use corresponding broken line 3c as starting point one by one successively angular sectors part and be stacked on continuous web 5a time the stability that obtains identical.

And, the face portion 21p of 21c is divided to be plane due to described above in upstream side adjacent from corners, so compared with the situation being curved surface with this face portion 21p, remaining on the part 3p on planar section 21p and obtaining wide wedge shape space SP between web 5a continuously of film 3 can cut, and this allows easily from space S P air-out.Therefore, it is possible to effectively avoid air to enter into the space between cutting film 3 and continuous web 5a during combining thus be sealed in the situation in this space, result, can prevent crowned fold.

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.Such as, when the diameter (average diameter) of anvil roller 21 is 200mm to 600mm, the quantity at angle is 60 to 180.

Although exemplarily anvil roller 21 is described to the shape of cross section with regular polygon, the present invention is not limited thereto.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 (wherein, the interior angle of each angle part 21c is all less than 180 °).Such as, anvil roller 21 can be convex polygon cylinder (cross section formation is the cylinder of convex polygon), described convex polygon cylinder has planar section 21p, the 21p of the sizes as above-mentioned planar section 21p, these planar sections have the different minor face of length, and these have planar section 21p, 21p of the different minor face of length ... repeatedly arrange along direction of rotation Dc with predefined procedure.It is to be noted, however, that the structure by examining under a microscope this example, can see that planar section 21p, the 21p with the different minor face of length tends to mutually different outer circular velocity motions.Therefore, desirably have the shape of cross section of the regular polygon shown in Fig. 4 A.

In addition, although planar section 21p and angle part 21c is formed on the whole width of anvil roller 21 along CD direction in the above-described embodiments, the present invention is not limited thereto.Such as, planar section 21p and angle part 21c need not be formed in region A2, A2 of the outer surface 21a of anvil roller 21, described region A2, A2 are from for keeping the region A3 of continuous film 3 to extend along CD direction towards end, and region A2, A2 can keep in bending.In other words, about CD direction, planar section 21p and angle part 21c should at least be formed in the region A3 keeping continuous film 3.

Similarly, about direction of rotation Dc, equally, planar section 21p and angle part 21c can optionally only be formed in presumptive area R1, to reduce for the treatment of the cost needed for outer surface 21a and manpower.In other words, in order to anvil roller 21 is formed as regular polygon cylinder as above, need to form multiple planar section 21p and angle part 21c on whole outer surface 21a.Therefore, in order to avoid this situation, planar section 21p and angle part 21c can optionally only be formed in outer surface 21a along in the presumptive area R1 of direction of rotation Dc.

Fig. 6 A and Fig. 6 B is the explanation view of the example of above-mentioned structure.Fig. 6 A is the perspective external view of anvil roller 21, and Fig. 6 B is the partial enlarged view of outer surface 21a.In this illustration, outer surface 21a has: the retaining zone R1 keeping cutting film 3; Do not keep the non-retaining zone R2 cutting film 3, described retaining zone R1 and described non-retaining zone R2 is the region along direction of rotation Dc.Although planar section 21p and angle part 21c is formed on whole retaining zone R1, planar section 21p and angle part 21c is not formed in non-retaining zone R2.That is, the part being arranged in non-retaining zone R2 of outer surface 21a has the smooth surface as Partition section of rotundity.

Incidentally, as shown in Figure 6A, such as, each above-mentioned retaining zone R1 all refers to such region R1, described region R1 from the position P23e1 of the end of downstream side edge along direction of rotation Dc of the reception blade 23 of correspondence, and terminates to the position P3e1 of this starting end along the length of the spaced apart cutting film 3 of downstream direction.Each non-retaining zone R2 all refers to such region R2, described region R2 such as from the position P3e1 in the downstream of above-mentioned cutting film 3, and terminates to the position P23e1 being positioned at the downstream end edge in the downstream of starting end along direction of rotation Dc receiving blade 23.And here, above-mentioned zone R2 is also referred to as non-retaining zone R2, although reason is that described non-retaining zone R2 keeps continuous film 3a below, this non-retaining zone R2 does not keep the cutting film 3 cut out from continuous film 3a.

Utilizing the anvil roller 21 of structure as mentioned above, can be in the retaining zone R1 only on outer surface 21a by the region limits being formed with planar section 21p and angle part 21c.Therefore, it is possible to reduce for the treatment of the cost needed for the outer surface 21a of anvil roller 21 and manpower.

Even if angle part 21c is only formed in retaining zone R1, also flat wrinkle process can be implemented in the substantially whole length corresponding to the part (it is as flat wrinkle target) of cutting film 3 of continuous film 3a.That is, when continuous film 3a relative to anvil roller 21 outer surface 21a backward relative sliding time, the angle part 21ce (21c) being positioned at the downstream end place of retaining zone R1 passes through along the substantially whole length corresponding to the part of cutting film 3 of continuous film 3a.Therefore, the part corresponding to cutting film 3a is subject to flat wrinkle process over substantially the entire length thereof.But, it should be noted that, with form the example of angle part 21c on whole outer surface 21a as in above-described embodiment (Fig. 4 A) compared with, because the quantity of the angle part 21c of film process during relative sliding reduces, so the intensity of flat wrinkle operation reduces.

By contrast, prevent wrinkling operation for when cutting film 3 is bonded to continuous web 5a, the operation similar to above-described embodiment (Fig. 4 A) can be implemented.Namely, due to the same with above-described embodiment, in the example of Fig. 6 A, planar section 21p and angle part 21c is formed on the whole surface of retaining zone R1, so can realize using the part 3c combined by the angle part 21c in Fig. 5 to make the part 3p remained on planar section 21p tilt part 3p to be stacked in the action on continuous web 5a as the pivotal point rotated in the whole length of cutting film 3.And, about the operation from the part 3p remained on planar section 21p and the wedge shape space SP air-out continuously between web 5a, air-out rapidly the whole length of cutting film 3.Therefore, it is possible to implement to prevent in the whole length of cutting film 3 in conjunction with time wrinkling operation.Therefore, this example is completely poor unlike above-described embodiment (Fig. 4 A).

Incidentally, planar section 21p and angle part 21c can be formed in the following manner.Namely, planar section 21p and angle part 21c can be formed as making by lie along virtually there is no planar section 21p and angle part 21c region in (such as, non-retaining zone R2 in Fig. 6 A) arc and the circle formed becomes the circumcircle of planar section 21p and angle part 21c, or make by lie along virtually there is no planar section 21p and angle part 21c region in the arc of (the non-retaining zone R2 such as, in Fig. 6 A) and the circle formed become the inscribed circle of described planar section 21p and described angle part 21c.In addition, the circle formed in the manner described above can neither circumcircle neither inscribed circle.In this case, angle part 21c can be designed the radial direction angle outwardly become along anvil roller 21, wherein, its angle is selected from 174 ° of scopes to 178 ° (comprising end value).This angular range also can be applicable to the angle part 21c formed based on above-mentioned inscribed circle or circumcircle.

Although both do not formed planar section 21p do not form angle part 21c in the example of Fig. 6 A on whole non-retaining zone R2 yet, but arrangement can be designed to form planar section 21p and angle part 21c in a part of non-retaining zone R2, and in all the other regions of non-retaining zone R2, neither form planar section 21p also do not form angle part 21c.

In addition, in the example of Fig. 6 A, for each planar section 21p, multiple suction socket 21h, 21h ... (corresponding to hole) is formed side by side along CD direction.Therefore, each planar section 21p all can keep the corresponding part 3p (Fig. 5) cutting film 3 securely, and this also effectively helps prevent or reduces wrinkling.

It is desirable that, the distribution density (quantity of the suction socket 21h of unit are) being formed in the suction socket 21h in planar section 21p is higher than the distribution density be formed in other any part except planar section 21p of suction socket 21h of outer surface 21a.In the example of Fig. 6 A, previous distribution density is about four times of a rear distribution density.Utilize this arrangement, during implemented flat wrinkle process by angle part 21c, can adsorb securely by planar section 21p, 21p that circumferentially Dc is adjacent with angle part 21c and keep continuous film 3a.Therefore, it is possible to effectively strengthen the flat wrinkle effect of angle part 21c realization.

In addition, when suction socket 21h along direction of rotation Dc when pressure roller 43 placement location P43 (Fig. 3), the suction implemented via suction socket 21h can be stopped, and now can via suction socket 21h air-out.By this arrangement, can at the placement location P43 place of pressure roller 43, cutting film 3 be transferred to continuous web 5a from anvil roller 21 swimmingly.In this case, it should be noted that before suction socket 21h arrives winding start position Pwst along direction of rotation Dc, restart to implement suction by suction socket 21h.

Incidentally, the region along direction of rotation Dc being formed with planar section 21p and angle part 21c on outer surface 21a can reduce further.Fig. 7 A and Fig. 7 B is the explanatory diagram of this situation: Fig. 7 A is the external perspective view of anvil roller 21, and Fig. 7 B is the partial enlarged view of outer surface 21a.

In the examples described above, the region R5 being formed with planar section 21p and angle part 21c along direction of rotation Dc is only limitted to the region R5 for keeping the downstream end part 3ed cutting film 3, and the part of all the other regions R6 corresponded to except the R5 of region of outer surface 21a is the curved surface of the segmentation as sub-circular.

Even if angle part 21c is only formed in each region R5, also flat wrinkle process can be implemented to the substantially whole length corresponding to the part of cutting film 3 of continuous film 3a.Namely, when continuous film 3a relative to anvil roller 21 outer surface 21a backward relative sliding time, angle part 21c, 21c of region R5 ... necessarily pass the region from the part to the part of the end of downstream side part 3ed corresponding to cutting film 3 that correspond to the upstream-side-end part 3eu cutting film 3 of continuous film 3a.Therefore, the part corresponding to cutting film 3 is subject to flat wrinkle process over substantially the entire length thereof.It is to be noted, however, that be only formed in the R5 of region due to angle part 21c, so compared with the embodiment of above-mentioned Fig. 6 A, further reduce the total quantity of angle part 21c, that is, in the example of Fig. 7 A, in the R5 of region, only form an angle part 21c.Therefore, the intensity of the flat wrinkle operation implemented during relative sliding reduces further.

And in the examples described above, the intensity of the anti-wrinkling operation performed when cutting film 3 is attached to continuous web 5a also reduces.Namely, because planar section 21p and angle part 21c is only formed in the region R5 of the end of downstream side part 3ed corresponding to cutting film 3, so perform above-mentioned anti-wrinkling operation when only can be attached to continuous web 5a at the end of downstream side part 3ed cutting film 3, and above-mentioned anti-wrinkling operation can not be performed during combination is positioned at the part 3u of the upstream side of end of downstream side part 3ed.

But, it should be noted 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 this ledge 21ap of outer surface 21a, radially direction is outwardly for described ledge 21ap.Therefore, it is possible to applying larger pressing force in conjunction with during end of downstream side part 3ed, thus at downstream end part 3ed place, cutting film 3 can be firmly bonded to continuous web 5a.The part 3u being positioned at the upstream side of end of downstream side part 3ed of cutting film 3 is stacked gradually and be attached on continuous web 5a when being transported along MD direction tractive by end of downstream side part 3ed.Now, by smoothing fold from end of downstream side part 3ed tractive.Like this, prevent or alleviate cutting film 3 wrinkling.

It should be noted that in the example of Fig. 7 B, only an angle part 21c is arranged in ledge 21ap.That is, in ledge 21ap, a pair is only provided with along adjacent planar section 21p, 21p of a direction of rotation Dc and angle part 21c between these two planar sections 21p, 21p.But the present invention is not limited thereto, and multiple angle part 21c can be provided.

Incidentally, the outer surface 21a of anvil roller 21 as above has angle part 21c, between the diameter of suggestion pressure roller 43 and the average diameter of anvil roller 21, there is non-integral multiple relation.The average diameter of the anvil roller 21 in this description refers to the value obtained divided by pi by the circumferential length of the outer surface 21a by anvil roller 21.

By providing above-mentioned relation, the angle part 21c of anvil roller 21 can be effectively prevented to be resisted against specific fixed position in the outer surface 43a of pressure roller 43.In other words, the position abutted with the angle part 21c of anvil roller 21 on the outer surface 43a of pressure roller 43 can be moved along direction of rotation along with rotating at every turn, thus the position that the angle part 21c that scatter clashes into.By this arrangement, effectively can prevent the uneven wear (concentrated wear) of the outer surface 43a of pressure roller 43, result, can this gap be in target zone the gap easily managed between anvil roller 21 and pressure roller 43 for a long time, from the angle preventing wrinkling and accurate combination, should accurately manage/regulate described gap.

Other embodiment of======

Although describe the present invention in conjunction with the embodiments, should be understood that, above-described embodiment is only used to contribute to understanding the present invention, and is not used in and explains the present invention in a restricted way.It is to be further understood that and can to change under the prerequisite not deviating from spirit of the present invention and to revise the present invention, and the present invention comprises its equivalent naturally.Such as, described deformation program can be implemented as follows.

Although planar section 21p is in the above-described embodiments as an example of the face portion 21p be formed on the outer surface 21a of anvil roller 21, but face portion is not limited to face portion 21p, as long as face portion 21p, the 21p be formed as along direction of rotation Dc is adjacent is interconnected via the rectilinear angle part 21c extended along CD direction.Such as, they can be curvature portion, such as arcuate surface portions.

Although non-woven fabrics 5a is in the above-described embodiments as an example of the second continuous sheet, and continuous film 3a is depicted as an example of the first continuous sheet, the present invention is not limited thereto.Such as, 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 is in the example of above-described embodiment as absorbent article, the present invention is not limited thereto, as long as this absorbent article is the liquid discharges absorbing wearer.Such as, absorbent article can be sanitary towel.

This application claims the rights and interests of Japanese publication No.2012-152792, its whole disclosure is incorporated to the present invention by reference at this.

Reference numerals list

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

3 cuttings film (cutting sheet material);

3a continuous film (the first continuous sheet);

3c part, the part at 3c leading edge place, 3ed end of downstream side part, 3eu upstream-side-end part;

3u upstream portion;

3p part;

5 outer sheet materials, the continuous web of 5a (the second continuous sheet);

10 manufacturing equipments;

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

20 anvil roller mechanisms (maintaining roller mechanism);

21 anvil rollers (maintaining roller), 21a outer surface, 21ap ledge;

21c angle part, the angle part at the downstream end place in 21ce retaining zone;

21p planar section (face portion);

21h suction socket (hole);

23 receive blade (blade members);

31 cutting rollers, 33 cutting blades;

40 integrated structures, 41 transport roller (conveyer);

43 pressure rollers, 43a outer surface;

70 binding agent application devices;

A2 region, A3 region;

R1 retaining zone, the non-retaining zone of R2, R5 region, all the other regions of R6;

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

P31 placement location, P43 placement location; Pwst winding start position;

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

CL gap, SP space

Claims

1. the manufacture method for the manufacture of the complex of the continuous sheet for absorbent article, described method is cut from the first continuous sheet and is produced cutting sheet material and covered by described cutting sheet material and be attached to the second continuous sheet, wherein, have interval between the described cutting sheet material adjacent along the continuous direction of described second continuous sheet on described second continuous sheet, described method comprises:

Maintaining roller is rotated with the periphery velocity amplitude higher than described first travelling speed value, and transport is remained on the outer surface of described maintaining roller from described first continuous sheet of described first conveyer, allows described first continuous sheet relative to the outer surface relative sliding backward of described maintaining roller simultaneously;

2. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein,

The outer surface of described maintaining roller has the retaining zone being configured to keep described cutting sheet material, and described retaining zone is the region along described direction of rotation, and

Described angle part is at least formed in described retaining zone.

3. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein,

The described outer surface of described maintaining roller has the non-retaining zone being configured to keep the retaining zone of described cutting sheet material and be not configured to keep described cutting sheet material, and described retaining zone and described non-retaining zone are the region along described direction of rotation,

Described retaining zone is formed with described angle part, and

Described non-retaining zone comprises the region not being formed with described angle part.

4. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to Claims 2 or 3, wherein,

Multiple angle part is formed in whole described retaining zone.

5. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein,

The outer surface of described maintaining roller is being formed with described multiple angle part on the whole girth of described direction of rotation.

6. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein,

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

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

7. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to any one in claim 1 to 6, wherein,

Being adjacent to described angle part the described face portion be formed on the outer surface of described maintaining roller is planar section.

8. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to any one in claim 1 to 7, wherein,

The outer surface of described maintaining roller is provided with multiple hole,

Angle part described in multiple Kong Yu is adjacent to be formed in each in the multiple face portion on the outer surface of described maintaining roller and is crisscrossly arranged side by side along described, and

Described hole is configured by via hole suction and described first continuous sheet and described cutting sheet material is remained on the outer surface of described maintaining roller.

9. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to claim 8, wherein,

The distribution density in the described multiple hole in described face portion is higher than the distribution density in the remainder except described face portion on the outer surface of described maintaining roller.

10. the manufacture method of the complex for the manufacture of the continuous sheet for absorbent article according to any one in claim 1 to 9, wherein, implements to combine by combining mechanism,

Described combining mechanism comprises:

Conveyer, the described conveyer of described combining mechanism is configured to transport described second continuous sheet with the velocity amplitude that the described periphery velocity amplitude with described maintaining roller is substantially equal; With

Pressure roller, described pressure roller is configured to described second continuous sheet to be pressed against on the cutting sheet material on the outer surface being maintained at described maintaining roller, to implement to combine; And

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

The manufacture method of 11. complexs for the manufacture of the continuous sheet for absorbent article according to any one in claim 1 to 10, wherein, described angle part is along the crisscross straight-line extension intersected with described carriage direction.

The manufacture method of 12. complexs for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein, the shape of cross section of described maintaining roller is convex polygon.

The manufacture method of 13. complexs for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein, the shape of cross section of described maintaining roller is regular polygon.

The manufacture method of 14. complexs for the manufacture of the continuous sheet for absorbent article according to claim 1, wherein, described face portion and described angle part are formed on the projections, described ledge compared with peripheral part of the outer surface of described maintaining roller along the radial direction of described maintaining roller outwardly.

15. 1 kinds of manufacturing equipments for the manufacture of the complex of the continuous sheet for absorbent article, described equipment is configured to cut from the first continuous sheet and produce cutting sheet material and covered by described cutting sheet material and be attached to the second continuous sheet, wherein, have interval between the described cutting sheet material adjacent along the continuous direction of described second continuous sheet on described second continuous sheet, described equipment comprises:

Maintaining roller mechanism, described maintaining roller mechanism comprises maintaining roller, described maintaining roller is provided with at least one blade members on the periphery of described maintaining roller, described maintaining roller mechanism construction becomes to make described maintaining roller to rotate with the periphery velocity amplitude higher than described first travelling speed value, and be configured to transport to remain on the outer surface of described maintaining roller from described first continuous sheet of described first conveyer, and allow described first continuous sheet relative to the outer surface relative sliding backward of described maintaining roller simultaneously;