JP6382729B2 - Method for producing cylindrical pattern film, method for producing pattern roll, and peeling apparatus - Google Patents

Description

  The present invention relates to a method for producing a cylindrical pattern film having a fine concavo-convex pattern on the surface, and a method for producing a pattern roll provided with the cylindrical pattern film. Moreover, this invention relates to the peeling apparatus for peeling a cylindrical film | membrane from a roll-shaped support body.

  In recent years, nanoimprints using web handling technologies such as roll-to-roll have been proposed. For example, such a nanoimprint has a fine uneven pattern on the surface of a conveyance path between a feeding device that feeds out a sheet to be processed (for example, a resin film or an inorganic substrate) and a winding device that winds up the sheet. A pattern roll (also called a roll mold, a mold roll, or a stamper roll) is provided, and the sheet is conveyed from the feeding device to the winding device while the pattern roll is in contact with the processing surface of the sheet. Thereby, it becomes possible to emboss the resin film continuously and efficiently and to form a pattern on the resist applied on the sheet.

  In order to obtain a pattern roll, a technique for seamlessly forming a concave-convex pattern of micron to sub-micron order on the roll surface (seamlessly) is already known. As a specific example, there is a technique in which a resist is applied to the roll surface and patterned by laser exposure. However, since the resist material has insufficient rigidity and durability, it is often unsuitable for application to pattern sheet production as a pattern roll for continuous imprinting. For this reason, a technology has been developed in which a roll having a concavo-convex pattern of resist on the surface is used as a master roll, and a cylindrical pattern roll made of metal is produced as a replica using transfer technology and electroforming technology (patent) Reference 1).

On the other hand, in Patent Document 2, a cylindrical silicone resin layer having a transfer concavo-convex pattern on its inner surface is formed by forming a silicone resin layer on the outer peripheral surface of a master roll (matrix) having an concavo-convex pattern on the outer peripheral surface. In the state where the cylindrical silicone resin layer is peeled from the original roll and held from the outer peripheral side, a metal layer is formed on the surface of the transfer uneven pattern on the inner surface, and a pattern roll comprising a cylindrical metal layer having an uneven pattern It is disclosed to obtain.
In Patent Document 2, as a method of peeling a cylindrical silicone resin layer from an original roll, (1) an adhesive is previously applied to the surface of the silicone resin layer, and then the inner diameter is larger than the outer shape of the silicone resin layer. A method in which a hollow cylindrical holder is installed in the periphery, and a part of the silicone resin layer is pressure-contacted to the inner wall of the holder, and then the entire surface is pressure-contacted and peeled off sequentially. (2) The silicone resin layer and the holder A method in which one end is bonded and then degassed by degassing the air existing in the gap from the other end. (3) Similarly, after bonding one end, the original roll and the silicone resin Examples include a method in which compressed air is fed between the layers and peeling is performed with the pressure.

JP 2005-199642 A JP 2007-290274 A

  However, in the method described in Patent Document 1, when producing a metal replication roll from an original roll, it is necessary to dissolve the resist of the original roll at the time of transfer peeling. Only one can be produced. That is, every time one metal replica roll is manufactured, it is necessary to newly manufacture an original roll. For example, when a pattern sheet is manufactured by continuous imprinting, it may be necessary to replace the replication roll mold within a few days. Since the production of the master roll takes time and cost, it is extremely expensive to produce many metal replica rolls. Therefore, there is a need for a method for obtaining a duplicate roll at a low cost so that the master roll can be duplicated a plurality of times without destroying the master roll.

Patent Document 2 describes a method of peeling a silicone resin layer from an original roll, but it cannot be said that a sufficiently specific method is disclosed, and a more specific and realistic peeling method is desired. It has been.
In Patent Document 2, after forming a cylindrical electroformed film on the inner surface of a cylindrical silicone resin layer, as a method of peeling the silicone resin layer from the cylindrical electroformed film, a part of the silicone resin layer is cut and expanded. Thus, a method of peeling is disclosed, and it is not assumed that a silicone resin layer having a transferred uneven pattern is used a plurality of times. That is, a plurality of resin duplication rolls can be produced from the original roll, but the resin duplication roll itself can be used only once. It is considered that further cost reduction can be achieved if the resin-made duplication roll itself can be used a plurality of times.

  The present invention has been made in view of the above circumstances, and can be realized at a low cost, and includes a method for producing a cylindrical pattern film including a specific method for peeling a resin cylindrical pattern film from an original roll, and the cylinder thereof. It aims at providing the preparation method of the pattern roll using a type | mold pattern film | membrane. Another object of the present invention is to provide a peeling apparatus for peeling a cylindrical pattern film from an original roll.

In the first method for producing a cylindrical pattern film of the present invention, a raw material liquid of an elastic material is applied to the outer surface of an original plate roll having an uneven pattern formed on the outer surface to form a film, and the film is cured. By forming a cylindrical pattern film made of an elastic material, to which the concavo-convex pattern is transferred,
Three or more blocks having an inner surface with an arc-shaped cross section along the outer surface of the cylindrical pattern film, and the inner surface of each block are arranged to face each other at different positions in the circumferential direction of the outer surface of the cylindrical pattern film, Adsorb the outer surface of the cylindrical pattern film to the inner surface of the block,
In this method, the cylindrical pattern film is peeled off from the original roll by moving each block outward in the normal direction relative to the outer surface of the cylindrical pattern film in the adsorbed state.

The second method for producing a cylindrical pattern film of the present invention is to apply a raw material liquid of an elastic material to the inner surface of a cylindrical master roll having a concavo-convex pattern formed on the inner surface to form a coating film. By forming a cylindrical pattern film made of an elastic material, the uneven pattern is transferred by curing,
Three or more blocks having an outer surface with an arc-shaped cross section along the inner surface of the cylindrical pattern film, and the outer surface of each block are arranged opposite to each other in the circumferential direction of the inner surface of the cylindrical pattern film, Adhere the inner surface of the cylindrical pattern film to the outer surface of the block,
This is a method for producing a cylindrical pattern film in which each block is moved inwardly in the normal direction with respect to the inner surface of the cylindrical pattern film in the adsorbed state, thereby peeling the cylindrical pattern film from the original roll.

  In the above, the “raw material liquid of elastic material” is a liquid composition that becomes an elastic material when cured, and the elastic material obtained by curing the raw material liquid is a thermosetting resin or a photocurable resin. , Which are in an uncured fluid state, and when an elastic material obtained by curing a raw material liquid is a thermoplastic resin, it means a material in which a thermoplastic resin is dissolved in a solvent.

  In the first and second cylindrical pattern film manufacturing methods of the present invention, when the cylindrical pattern film is peeled from the original roll, the portion of the cylindrical pattern film that is in close contact with the block is removed from the cylindrical body. The portion that is not in close contact with the block may be peeled off from the original roll using the elastic force of the cylindrical pattern film while the block is moved by the distance to be peeled and then the block is stopped.

  In the first and second cylindrical pattern film manufacturing methods of the present invention, when moving the block, the block is tilted so that one end in the length direction of the block is separated from the original roll before the other end. May be moved.

In addition, it is preferable to adsorb | suck by interposing a porous sheet between the cylindrical pattern film of a block, the surface to adsorb | suck, and a cylindrical pattern film.
Here, the cylindrical pattern film of the block and the adsorbing surface are inner surfaces in the case of the block in the first method for producing the cylindrical pattern film, and in the case of the block in the method for producing the second cylindrical pattern film. Is the outer surface.

The production method of the pattern roll of the present invention uses the production method of the cylindrical pattern film of the present invention,
This is a pattern roll production method for producing a pattern roll having an uneven pattern corresponding to the uneven pattern of the original roll on the outer surface.
Here, the concavo-convex pattern corresponding to the concavo-convex pattern of the original roll is a reverse concavo-convex pattern of the concavo-convex pattern of the original roll in the pattern roll formed through an odd number of transfers from the original roll, and an even number from the original roll. In the pattern roll formed through the transfer of times, the concavo-convex pattern is the same as the concavo-convex pattern of the original roll.

  The pattern roll manufacturing method of the present invention is such that when the cylindrical pattern film obtained by the cylindrical pattern film manufacturing method has an uneven pattern on the inner surface, the inner surface of the cylindrical pattern film is electroformed on the inner surface by electroforming. Form a cast film, peel the cylindrical pattern film from the cylindrical electroformed film, and fit the cylindrical core that matches the inner circumference of the cylindrical electroformed film into the cylindrical electroformed film, or the cylindrical electroformed film A pattern roll may be obtained by fitting a cylindrical core that coincides with the inner periphery of the cylindrical electroformed film into the cylinder and peeling the cylindrical pattern film from the cylindrical electroformed film.

  Here, when peeling the cylindrical pattern film from the cylindrical electroformed film, three or more blocks having an arcuate inner surface along the outer surface of the cylindrical pattern film, the inner surface of each block Are arranged opposite to each other in the circumferential direction on the outer surface of the cylindrical pattern film so that the outer surface of the cylindrical pattern film is adsorbed on the inner surface of each block, and each block is attached to the outer surface of the cylindrical pattern film in the adsorbed state It is preferable to peel the cylindrical pattern film from the cylindrical electroformed film by moving outward in the normal direction.

  In the pattern roll manufacturing method of the present invention, when the cylindrical pattern film obtained by the cylindrical pattern film manufacturing method has a concavo-convex pattern on the outer surface, the cylindrical pattern film coincides with its inner periphery. A pattern roll may be obtained by fitting a core.

  In the method for producing the pattern roll of the present invention, when the cylindrical pattern film obtained by the cylindrical pattern film forming method has an uneven pattern on the inner surface, the cylindrical pattern film is turned upside down so that the outer surface is uneven. A pattern roll may be obtained by fitting a cylindrical core that coincides with the inner periphery of a cylindrical pattern film having a pattern and having an uneven pattern on the outer surface.

When turning the cylindrical pattern film upside down, the cylindrical pattern film is supported from the outside while maintaining the cylindrical shape, and one end in the length direction of the cylindrical pattern film is gripped and the other end is moved from the inside of the cylinder. It is preferable to pull it toward the end side and turn it over.
Further, at this time, it is preferable that the cylindrical pattern film is turned over while maintaining the cylindrical shape so as to be fitted into the air tube from one end where the cylindrical pattern film is gripped.

The method for producing a pattern roll according to the present invention comprises three or more blocks each having an inner surface with an arc-shaped cross section along the outer surface of the cylindrical pattern film when the cylindrical core is fitted into the cylindrical pattern film. The inner surface of the cylindrical pattern film is arranged opposite to the outer surface of the cylindrical pattern film at different positions in the circumferential direction, and the outer surface of the cylindrical pattern film is adsorbed on the inner side surface of each block,
By moving each block in the normal direction outward with respect to the outer surface of the cylindrical pattern film in the adsorbed state, the hollow part of the cylindrical pattern film is expanded, and after inserting the cylindrical core into the expanded hollow part, By releasing the adsorption by the block, the cylindrical core may be fitted into the cylindrical pattern film to obtain a pattern roll.

The first peeling apparatus of the present invention is a peeling apparatus for peeling a cylindrical film made of an elastic material in close contact with the outer surface of a roll-shaped support from the roll-shaped support,
Three or more blocks disposed on the circumference, each having an arcuate inner surface, a plurality of holes provided in the inner surface, and a suction path communicating with the holes;
A suction part connected to the suction path;
A movement control unit for moving the block in the radial direction;
It is a peeling apparatus provided with the suction control part which controls the action | operation of a suction part.

The second peeling apparatus of the present invention is a peeling apparatus for peeling a cylindrical film made of an elastic material in close contact with the inner surface of a cylindrical roll-shaped support from the roll-shaped support,
Three or more blocks disposed on the circumference, each having an outer surface having a circular cross section, a plurality of holes provided in the outer surface, and suction paths communicating with the holes;
A suction part connected to the suction path;
A movement control unit for moving the block in the radial direction;
It is a peeling apparatus provided with the suction control part which controls the action | operation of a suction part.

  In the first method for producing a cylindrical pattern film of the present invention, a cylindrical pattern film made of an elastic material formed on the outer surface of an original plate roll provided with an uneven pattern on the outer surface is formed along the outer surface of the cylindrical pattern film. Three or more blocks having an arc-shaped inner surface in cross section, and the inner surface of each block are arranged opposite to each other in the circumferential direction on the outer surface of the cylindrical pattern film, and the cylindrical pattern film is formed on the inner surface of each block. A method for producing a cylindrical pattern film in which a cylindrical pattern film is peeled off from an original roll by moving each block outward in the normal direction with respect to the outer surface of the cylindrical pattern film while adsorbing the outer surface. . According to such a method, the cylindrical pattern film can be peeled from the original roll without destroying both the cylindrical pattern film and the original roll, so that the cylindrical pattern film and the original roll can be used repeatedly. A cylindrical pattern film can be produced at low cost. Moreover, if this method is used, a pattern roll can be provided at low cost.

  In the second cylindrical pattern film production method of the present invention, a cylindrical pattern film made of an elastic material formed on the inner surface of an original plate roll provided with an uneven pattern on the inner surface, along the inner surface of the cylindrical pattern film, Three or more blocks having an outer surface with an arcuate cross section, and the outer surface of each block are arranged opposite to each other in the circumferential direction of the inner surface of the cylindrical pattern film, and the inner surface of the cylindrical pattern film is placed on the outer surface of each block The cylindrical pattern film is peeled off from the original roll by moving each block inwardly in the normal direction with respect to the inner surface of the cylindrical pattern film in a state of being adsorbed. According to such a method, the cylindrical pattern film can be peeled from the original roll without destroying both the cylindrical pattern film and the original roll, so that the cylindrical pattern film and the original roll can be used repeatedly. A cylindrical pattern film can be produced at low cost. Moreover, if this method is used, a pattern roll can be provided at low cost.

It is a figure which shows typically the preparation process of the 1st cylindrical pattern film | membrane of this invention. It is a figure which shows typically the peeling process using the return force of a cylindrical pattern film | membrane. It is a figure which shows typically the process of the manufacturing method of the 2nd cylindrical pattern film | membrane of this invention. It is a figure which shows typically the preparation process of the pattern roll of 1st Embodiment. It is a figure which shows typically the process of making a cylindrical pattern film | membrane support from the outer peripheral side with a cylindrical frame, and performing electroforming. It is a figure which shows typically the preparation process of the pattern roll of 2nd Embodiment. In the process of FIG. 6, it is a figure which shows typically the process of turning over the cylindrical pattern film | membrane which has an uneven | corrugated pattern inside. It is a figure which shows typically the process of inserting a cylindrical core in the hollow part of a cylindrical pattern film | membrane in the process of FIG. It is a figure which shows typically the preparation process of the pattern roll of 3rd Embodiment. In the process of FIG. 9, it is a figure which shows typically the process of inserting a cylindrical core in the hollow part of a cylindrical pattern film | membrane. It is a figure which shows typically the preparation process of a replication type | mold original plate roll. It is sectional drawing which shows a part of apparatus for implementing the continuous imprint using a pattern roll. It is sectional drawing B cut | disconnected by the surface parallel to a long-axis direction, and the cutting part end view A cut | disconnected by the surface perpendicular | vertical to the major-axis direction of the apparatus which shows the structure of a 1st peeling apparatus typically. It is a perspective view which shows the block of the peeling apparatus of FIG. 13 typically. It is sectional drawing which shows typically the peeling method at the time of inclining and peeling a block. It is sectional drawing B cut | disconnected by the surface parallel to a long-axis direction, and the cutting part end view A cut | disconnected by the surface perpendicular | vertical to the major axis direction of the apparatus which shows the structure of a 2nd peeling apparatus schematically. It is a perspective view which shows the block of the peeling apparatus of FIG. 16 typically.

  Hereinafter, although an embodiment of the present invention is described using a drawing, the present invention is not limited to this. In addition, in order to make it easy to visually recognize, the scale of each component in the drawings is appropriately changed from the actual one.

[Method for producing cylindrical pattern film]
First, the first and second cylindrical pattern film manufacturing methods of the present invention will be described in order. The cylindrical pattern film is produced using an original roll having a concavo-convex pattern surface. The first method for producing a cylindrical pattern film of the present invention relates to the case of using an original roll having an concavo-convex pattern on the outer surface. The manufacturing method of the 2nd cylindrical pattern film | membrane of invention relates to the case of using the negative | original plate roll which has an uneven | corrugated pattern in a cylindrical inner surface. In the present specification, the original roll refers to a roll surface (inner surface or outer surface) directly processed with a concavo-convex pattern, and does not include a concavo-convex pattern sheet wound around the roll surface.

(Embodiment of the 1st cylindrical pattern film | membrane manufacturing method of this invention)
An embodiment of the first method for producing a cylindrical pattern film of the present invention will be described. FIG. 1 is a diagram schematically showing a manufacturing process of this embodiment.
FIG. 1 is a plan view seen from one end of the cylinder, but is partially hatched to distinguish the members in FIG. The same applies to FIGS. 2 to 6 and FIGS.

The manufacturing method of the cylindrical pattern film of this embodiment is as follows.
As shown in FIG. 1, a master roll 10 having a concavo-convex pattern formed on the outer surface is prepared (S11), and a nozzle 15 is formed on the outer surface of the master roll 10, that is, the concavo-convex pattern surface while rotating the master roll 10 in one direction. By discharging the elastic material liquid 20a from the elastic material raw material liquid 20a, the elastic material raw material liquid 20a is applied to the surface of the concavo-convex pattern of the original roll 10 to form a coating (S12). Then, if necessary, the film thickness of the coating (raw material liquid 20a) is made uniform using the blade 16 or the like (S13). At this time, the film thickness can be adjusted by controlling the blade position while the master roll 10 is rotating. The film thickness is preferably about 1 to 5 mm.

  Then, the cylindrical pattern film 20 made of an elastic material having the concavo-convex pattern transferred thereon is formed by curing the film made of the raw material liquid 20 a while rotating the original roll 10, and along the outer surface of the cylindrical pattern film 20. In addition, four blocks 110 each having an arc-shaped inner side surface 115 are arranged so that the inner side surfaces 115 face each other at different positions in the circumferential direction on the outer surface of the cylindrical pattern film 20. The outer surface of the cylindrical pattern film 20 is attracted to 115 (S14).

  Then, each block 110 is moved outward in the normal direction with respect to the outer surface of the cylindrical pattern film 20 in the adsorbed state (S15), thereby expanding the inner diameter of the cylindrical pattern film 20 and making the cylindrical pattern film 20 the original plate. It peels from the roll 10 (S16). Further, the master roll 10 is pulled out in a state where the inner diameter of the cylindrical pattern film 20 is expanded, and finally the adsorption of the cylindrical pattern film 20 by the block 110 is released to obtain the cylindrical pattern film 20 (S17).

  As the master roll 10, it is only necessary that the concavo-convex pattern layer 12 is formed on the surface of the cylindrical member (roll) 11, and those obtained by a known method can be appropriately used. For example, a resist made of a photosensitive resin is applied to the surface of the cylindrical member 11 by a coating method such as a dip coating method, and, for example, a micron-order line pattern is drawn by laser light irradiation, and uncured portions are washed away. The master roll 10 can be formed by forming a concavo-convex pattern of a resist, or by subjecting the concavo-convex pattern of the resist to surface treatment such as a metal coating by sputtering as necessary.

The roll dimensions are, for example, a length of 300 to 1500 mm and a diameter (inner diameter) of about 100 to 500 mm.
Examples of the concavo-convex pattern include a line and space pattern, but are not particularly limited. In addition, the convex part width of the concave and convex pattern, the concave part width, and the difference between the convex part and the concave part (height of the convex part) are all arbitrarily formed in accordance with the application within a range from several tens nm to several hundreds μm. Can be used.

  Regarding the block 110, the inner side surface 115 having an arc-shaped cross section is a cylindrical concave surface, and “the inner side surface 115 is along the outer surface of the cylindrical pattern film” has a curvature capable of being in close contact with the outer surface of the cylindrical pattern film. Means that

  In this example, four blocks 110 are used for peeling the cylindrical pattern film, but there is no particular limitation as long as the number of blocks is three or more. The number of blocks is preferably at least 4 or more. The larger the roll diameter, the larger the number of blocks is desirable. For example, if the roll diameter is 100 to 200 mm, the number of blocks is about 4 to 6, and if the roll diameter is 300 to 500 mm, the number of blocks is 6 to 6. About 10 is considered appropriate. Although it is desirable that the plurality of blocks are equally arranged as an equivalent shape, the shapes of the blocks are not necessarily the same. The total area of the inner side surfaces of all the blocks in close contact with the outer surface of the cylindrical pattern film is preferably large enough to cover 70% or more, preferably 80% or more of the outer surface of the cylindrical pattern film. When the adhesion area by one block is large, a large peeling force is required. Therefore, it is preferable that one block is small and the number of blocks is increased.

As a method for adsorbing the cylindrical pattern film on the block, a method in which the inside of the block is hollowed out and a number of suction holes are provided on the surface of the block in contact with the cylindrical pattern film to perform vacuum suction is particularly preferable. In addition, you may make it adsorb | suck a cylindrical pattern film to a block in the state which interposed the porous sheet between the surface which contact | connects the cylindrical pattern film of a block, and a cylindrical pattern film.
Further, ultrasonic vibration may be applied when the cylindrical pattern film is adsorbed to the block and peeled off. As a specific example, it is preferable to apply ultrasonic vibration so that the ultrasonic generator is applied to the roll surface or the inner surface of the part to be peeled and vibration is applied parallel to the peeling direction. If there is absolutely no place to attach, vibration may be applied from the side of the roll. In addition, although an ultrasonic generator is not specifically limited, The output of an ultrasonic generator has the preferable range of about 300-3000W, for example.

  Further, when the cylindrical pattern film 20 is peeled from the original roll 10, as shown in FIG. 2, the cylindrical pattern film 20 is blocked from the state in which the cylindrical pattern film 20 is adsorbed to the block 110 (S31). The portion that is in close contact with 110 is moved by a slight amount to be peeled off from the original roll 10 (S32), and then the block 110 is stopped and the block using the elastic force (return force) of the cylindrical pattern film 20 is used. A portion that is not in close contact with 110 may be peeled off from the original roll 10 (S33).

  Further, when the block 110 is moved in a state where the cylindrical pattern film 20 is adsorbed to the block 110, the block is inclined so that one end in the length direction of the block 110 is separated from the original roll before the other end. By moving the cylindrical pattern film 20, only one end of the cylindrical pattern film 20 may be peeled first from the original roll 10, and then the whole may be peeled.

  The elastic material refers to a material such as rubber that expands and contracts by applying stress and has a characteristic of about 10 to 100 MPa in Young's modulus. Specific examples of the elastic material used in the present invention include a thermosetting resin such as a silicone resin, a photo-curable resin such as urethane, and a thermoplastic resin having rubber elasticity (elastomer, ethylene vinyl acetate copolymer (EVA), etc.). Is mentioned. When forming a cylindrical pattern film of a thermosetting resin or a photocurable resin, use an uncured fluidized state as the raw material liquid for the elastic material, and heat energy or light energy after application. Is sufficient to cure. In the case of forming a cylindrical pattern film of a thermoplastic resin, a material obtained by dissolving a thermoplastic resin in a solvent may be used as a raw material liquid for an elastic material, and the solvent may be cured by evaporating after application.

  As described above, according to the manufacturing method of the cylindrical pattern film 20 of the present embodiment, the cylindrical pattern film 20 can be peeled from the original roll 10 without destroying the cylindrical pattern film 20 and the original roll 10. Therefore, both can be used repeatedly, and the cylindrical pattern film 20 can be manufactured at low cost.

(Embodiment of the manufacturing method of the 2nd cylindrical pattern film of this invention)
An embodiment of a method for producing a second cylindrical pattern film of the present invention will be described. FIG. 3 is a diagram schematically showing a manufacturing process of the present embodiment.

The manufacturing method of the cylindrical pattern film of this embodiment is as follows.
As shown in FIG. 3, a cylindrical original roll 30 having an uneven pattern formed on the inner surface is prepared (S21), and the inner surface of the original roll 30, that is, the uneven pattern surface is rotated while the original roll 30 is rotated in one direction. Then, the elastic material solution 40a is discharged from the nozzle 15 to apply the elastic material solution 40a to the surface of the concavo-convex pattern of the original roll 30 to form a coating (S22). Then, if necessary, the film thickness of the coating (raw material liquid 40a) is made uniform with the blade 16 or the like (S23). At this time, the film thickness can be adjusted by controlling the blade position while the master roll 30 is rotating. The film thickness is preferably about 1 to 5 mm.

  Then, the cylindrical pattern film 40 made of an elastic material to which the uneven pattern is transferred is formed by curing the film made of the raw material liquid 40a while rotating the original roll 30, and along the inner surface of the cylindrical pattern film 40 In addition, the four blocks 130 having the outer surface 139 having an arcuate cross section are arranged so that the outer surfaces 139 face each other at different positions in the circumferential direction of the inner surface of the cylindrical pattern film 40, so Next, the inner surface of the cylindrical pattern film 40 is adsorbed (S24).

  Then, each block 130 is moved inward in the normal direction with respect to the inner surface of the cylindrical pattern film 40 in the adsorbed state, so that the outer diameter of the cylindrical pattern film 40 is reduced and the cylindrical pattern film 40 is made to be the original roll 30. (S25). Further, the cylindrical pattern film 40 is extracted from the original roll 30 with the outer diameter of the cylindrical pattern film 40 being reduced (S26), and finally the adsorption of the cylindrical pattern film 40 by the block 130 is released to remove the cylindrical pattern film 40. The film 40 is obtained (S27).

  The master roll 30 may be any as long as the concave / convex pattern layer 32 is formed on the inner surface of the cylindrical member 31, and those obtained by a known method can be used as appropriate. For example, a cylindrical member 31 made of a light transmissive material is used, a resist made of a photosensitive resin is applied to the inner surface, and a laser beam is irradiated from the outer surface of the cylindrical member 31 to draw a micron-order line pattern. Then, the resist roll concavo-convex pattern formed by washing away the uncured portion, or the resist concavo-convex pattern subjected to surface treatment such as a metal coating by sputtering as necessary is used as the original roll 30. be able to.

The roll dimensions are, for example, a length of 300 to 1500 mm and a diameter (inner diameter) of about 100 to 500 mm.
Examples of the concavo-convex pattern include a line and space pattern, but are not particularly limited. In addition, the convex part width of the concave and convex pattern, the concave part width, and the difference between the convex part and the concave part (height of the convex part) are all arbitrarily formed in accordance with the application within a range from several tens nm to several hundreds μm. Can be used.

  Regarding the block 130, the outer side surface 139 having an arcuate cross section is a cylindrical convex surface, and the outer side surface 139 is “along the inner surface of the cylindrical pattern film” has a curvature that allows close contact with the inner surface of the cylindrical pattern film. Means that

  In this example, four blocks 130 are used for peeling the cylindrical pattern film, but there is no particular limitation as long as the number of blocks is three or more. The number of blocks is preferably at least 4 or more. The larger the roll diameter, the larger the number of blocks is desirable. For example, if the roll diameter is 100 to 200 mm, the number of blocks is about 4 to 6, and if the roll diameter is 300 to 500 mm, the number of blocks is 6 to 6. About 10 is considered appropriate. Although it is desirable that the plurality of blocks are equally arranged as an equivalent shape, the shapes of the blocks are not necessarily the same. The total area of the outer surfaces of all the blocks in close contact with the inner surface of the cylindrical pattern film is preferably large enough to cover 70% or more, preferably 80% or more of the inner surface of the cylindrical pattern film. When the adhesion area by one block is large, a large peeling force is required. Therefore, it is preferable that one block is small and the number of blocks is increased.

The first cylindrical mold is used for a method of adsorbing the block to the cylindrical pattern film, a method of applying ultrasonic vibration when the cylindrical pattern film is peeled from the original roll while the block is adsorbed to the cylindrical pattern film, etc. A method similar to that in the embodiment of the method for producing the pattern film can be employed.
Also, the elastic material can be the same as in the first embodiment of the method for producing the cylindrical pattern film. In addition, you may use the resist coating device of FIG. 3 of patent document 2 for the application | coating of the raw material liquid of an elastic material to the inner surface of the cylindrical negative | original plate roll 30 in which an uneven | corrugated pattern is formed in an inner surface.

  As described above, according to the manufacturing method of the cylindrical pattern film 40 of the present embodiment, the cylindrical pattern film 40 can be peeled from the original roll 30 without destroying the cylindrical pattern film 40 and the original roll 30. Therefore, both can be used repeatedly, and the cylindrical pattern film 40 can be manufactured at low cost.

[Pattern roll manufacturing method]
The method for producing the pattern roll of the present invention is a method for producing a pattern roll having a concavo-convex pattern corresponding to the concavo-convex pattern of the original roll on the outer surface using the first or second cylindrical pattern film production method of the present invention. It is.

(Production Method of Pattern Roll of First Embodiment)
FIG. 4 is a diagram schematically showing a pattern roll manufacturing process according to the first embodiment of the present invention. A method for producing the pattern roll of this embodiment will be described with reference to FIG.
First, a master roll 10 having a concavo-convex pattern formed on the outer surface is prepared (S41), an elastic material solution is applied to the surface of the concavo-convex pattern of the master roll 10 to form a film, and the film is cured, thereby forming a concavo-convex pattern. The cylindrical pattern film 20 made of an elastic material to which the pattern is transferred is produced (S42), and the cylindrical pattern film 20 is peeled from the original roll 10 (S43). In the steps S41 to S43, the method for producing the cylindrical pattern film 20 of the first embodiment described above (steps S11 to S17 in FIG. 1) can be used.

Thereafter, a conductive layer made of Ni or the like is formed on the inner surface of the cylindrical pattern film 20 having an uneven pattern on the inner surface by sputtering or the like, and then the cylindrical pattern film 20 is immersed in an electroforming tank to form a cylindrical shape such as a Ni film. The electroformed film 22 is formed (S44). A known method can be adopted as the electroforming method.
Then, the cylindrical roll 23 is fitted into the hollow portion of the cylindrical electroformed film 22 (S45), and the pattern roll 50 can be obtained by peeling the cylindrical pattern film 20 from the cylindrical electroformed film 22 (S46). The cylindrical core 23 may be fitted into the hollow portion of the cylindrical electroformed film 22 after peeling the cylindrical electroformed film 22 and the cylindrical pattern film 20.

  In the production method described above, the formation of the conductive layer and the electroformed film on the concave / convex pattern surface of the cylindrical pattern film 20 is preferably performed in a state where the cylindrical pattern film 20 is held by the cylindrical frame from the outer peripheral side. FIG. 5 schematically shows a process of performing electroforming by supporting the cylindrical pattern film 20 from the outer peripheral side with a cylindrical frame. From the step S42 in which the cylindrical pattern film 20 is formed on the surface of the original roll 10 in FIG. 4, the cylindrical pattern film 20 is peeled from the original roll 10 through the steps S14 and S15 shown in FIG. With the pattern film 20 peeled from the original roll 10, the original roll 10 is pulled out from the cylindrical pattern film 20, and the air tube 25 is inserted inside the cylindrical pattern film 20 from which the original roll 10 has been pulled out (S51). Thereafter, the suction by the block 110 is released and the block is removed (S52), the pattern film 20 is inserted into the rigid cylindrical frame 26 together with the air tube 25, the pressure in the air tube 25 is increased, and the cylindrical pattern film 20 Is brought into close contact with the cylindrical frame 26 (S53). At this time, an adhesive may be applied to the inner surface of the cylindrical frame 26, and the cylindrical pattern film 20 may be adhered to the cylindrical frame 26, or a sheet serving as a cushion layer may be attached to the inner surface of the cylindrical frame 26. It may be left. The sheet may be made of a material having tackiness, and a silicon rubber sheet or a pressure-sensitive adhesive sheet coated with a pressure-sensitive adhesive on one surface can be used.

Thereafter, the pressure in the air tube 25 is lowered to shrink the air tube 25 and remove it from the cylindrical pattern film 20 to bring the cylindrical pattern film 20 into the state of being held in the cylindrical frame 26 (S54). Next, as described above, a conductive layer is formed on the inner surface of the pattern film 20, the cylindrical pattern film 20 is immersed in the electroforming tank together with the cylindrical frame 26, and the cylindrical electroformed film 22 is formed on the inner surface of the cylindrical pattern film 20. Is formed by electroforming (S55).
By removing the cylindrical frame 26, the cylindrical pattern film 20 shown in step S44 of FIG. 4 in which the cylindrical electroformed film 22 is formed is obtained. For example, the cylindrical electroformed film 22 is formed in the cylindrical pattern film 20 by heating the cylindrical frame 26 (by heating to about 100 ° C. to 150 ° C. if the cylindrical frame is made of metal) and expanding the inner diameter. Can be removed from the cylindrical frame 26. Further, if the structure is such that the cylindrical frame can be divided, the cylindrical frame can be removed freely. A method of removing the cylindrical electroformed film 22 by dissolving the cylindrical pattern film 20 with a solvent or the like is also conceivable.

For fitting the cylindrical core 23 into the cylindrical electroformed film 22 (S44-S45), for example, the cylindrical electroformed film 22 is heated to slightly expand the diameter of the cylinder, and the cooled cylindrical core 23 is inserted therein. It can be achieved by a method of returning to room temperature. At this time, the cylindrical pattern film 20 is also stretched by heating, so care must be taken not to break the cylindrical electroformed film 22.
For the peeling of the cylindrical pattern film 20 from the cylindrical electroformed film 22 (S45-S46), the peeling method (step S14-16 in FIG. 1) using the block 110 used in the method for producing the cylindrical pattern film 20 is applied. be able to.

  In addition, the pattern roll 50 provided with the cylindrical electroformed film 22 on the surface of the cylindrical core 23 can be used as the original roll 10 in the pattern roll manufacturing method, and a plurality of rolls can be repeatedly manufactured according to the manufacturing method described above. . Moreover, the cylindrical pattern film | membrane 20 can be used as long as it is not damaged, A several pattern roll can be produced by repeating process S44-S46 in FIG.

(Method for Producing Pattern Roll of Second Embodiment)
FIG. 6 is a diagram schematically showing a pattern roll manufacturing process according to the second embodiment of the present invention. A method for producing the pattern roll of this embodiment will be described with reference to FIG.
The pattern roll manufacturing method of the present embodiment is a partial modification of the pattern roll manufacturing process of the first embodiment, and steps S41 to S42 for manufacturing the cylindrical pattern film 20 from the original roll 10 It is the same as the manufacturing process of the pattern roll of 1 embodiment.
A cylindrical pattern film 20 having a concavo-convex pattern on the inner surface side is turned upside down without forming a conductive layer and electroforming the produced cylindrical pattern film 20, and the rugged pattern is formed on the outer surface side ( (S48) The pattern roll 51 can be obtained by fitting the cylindrical core 24 into the hollow portion inside the cylindrical pattern film 20 having the concave-convex pattern on the outer surface side (S49).

FIG. 7 is a cross-sectional view schematically showing a specific method for turning over the cylindrical pattern film 20 having an uneven pattern on the inner surface side.
From the state in which the cylindrical pattern film 20 is adsorbed by the block 110 and peeled off from the original roll 10, the original roll 10 is pulled out from the inside of the cylindrical pattern film 20, and the cylindrical pattern film 20 is adsorbed and fixed to the block 110. The gripping jig 27 grips some or one end of the cylindrical pattern film 20 (S61), and an air tube (cylindrical balloon) 28 integrated with the gripping jig 27 is used as the cylindrical pattern film. It is inserted inside 20 and pulled up from the inside of the cylinder toward the other end side of the cylindrical pattern film so that the cylindrical pattern film 20 is wound around the air tube 28, and is turned over while being peeled off from the block 110 (S62).

  During this operation S61-S62, the suction force of the cylindrical pattern film 20 by the block 110 is controlled to such an extent that the cylindrical pattern film 20 is peeled off. Air can be supplied to the air tube 28 from the direction of the arrow in step S61 in FIG. 7, and the internal pressure of the air tube 28 is controlled when the cylindrical pattern film 20 is peeled off from the block 110. It is preferable to slowly move the whole so that the mold pattern film 20 does not bend or bend, and the surface uneven pattern is not damaged.

A specific aspect of the process of fitting the cylindrical core 24 into the hollow portion of the cylindrical pattern film 20 that is turned over and has an uneven pattern on the outer surface will be described with reference to FIG.
The block 110 used for the peeling operation in FIG. 1 is arranged outside the cylindrical pattern film 20, and the outer surface of the cylindrical pattern film 20 is sucked and adsorbed by the block 110 (S63). And the cylindrical core 24 is inserted in the state which expanded the inner periphery of the cylindrical pattern film | membrane 20 by moving the block 110 outward (S64). Thereafter, by releasing suction of the cylindrical pattern film 20 by the block 110, a pattern roll 51 (see S49 in FIG. 6) in which the cylindrical core 24 is fitted inside the cylindrical pattern film 20 can be obtained.

  The manufacturing method of the pattern roll 51 of the present embodiment is a significant process because the electroforming process on the inner surface of the cylindrical pattern film 20 is not required compared to the manufacturing method of the pattern roll 50 of the first embodiment. Simplification can be realized. Moreover, since the some cylindrical pattern film | membrane 40 can be obtained using one original roll, and a some pattern roll can be produced, a pattern roll production cost can be suppressed. On the other hand, since the cylindrical pattern film 20 made of an elastic material made of resin or the like is used on the surface of the pattern roll, the durability is slightly lowered as compared with the pattern roll 50. Therefore, it is also preferable to use a pattern roll that has improved durability by forming a metal film by sputtering or the like on the surface of the cylindrical pattern film 20 of the pattern roll 51 to increase the hardness of the surface of the concavo-convex pattern.

(Method for Producing Pattern Roll of Third Embodiment)
FIG. 9 is a diagram schematically showing a pattern roll manufacturing process according to the third embodiment of the present invention. A method for producing the pattern roll of this embodiment will be described with reference to FIG.
First, an original roll 30 having an uneven pattern formed on the inner surface is prepared (S71), an elastic material solution is applied to the uneven pattern surface of the original roll 30 to form a film, and the film is cured, A cylindrical pattern film 40 made of an elastic material to which the concave / convex pattern is transferred is formed (S72), and the cylindrical pattern film 40 is peeled from the original roll 30 (S73). In steps S71 to S73, the method for producing the cylindrical pattern film 40 of the second embodiment described above (S21 to S27 in FIG. 3) can be used.

  Then, the pattern roll 52 can be obtained by fitting the cylindrical core 46 in the hollow part of the cylindrical pattern film | membrane 40 which has an uneven | corrugated pattern on an outer surface (S74). Alternatively, the metal layer 48 may be formed on the surface of the cylindrical pattern film 40 by sputtering or the like to produce the pattern roll 53 having the surface made of the metal layer 48. Since the pattern roll 52 uses the resin cylindrical pattern film 40 on the surface of the pattern roll, the pattern roll 52 is slightly inferior in durability. On the other hand, since the pattern roll 53 includes the metal layer 48 on the surface, the durability is higher than that of the resin surface.

A method for inserting the cylindrical core 46 into the hollow portion of the cylindrical pattern film 40 in the above manufacturing method will be described with reference to FIG.
The block 130 is disposed inside the cylindrical pattern film 40, the cylindrical pattern film 40 is adsorbed to the block 130, the cylindrical pattern film 40 is peeled from the original roll 30, and the cylindrical pattern film 40 is removed from the original roll 30. From the closed state (S81), the four blocks 110 are arranged on the outer periphery of the cylindrical pattern film 40 so as to be opposed to each other in a one-to-one relationship with the four blocks 130. Is adsorbed (S82). Thereafter, the suction by the inner block 130 is released, the block 130 is pulled out from the inside of the cylindrical pattern film 40, the block 110 is moved to the outer side to increase the inner diameter of the cylindrical pattern film 40 (S83), and the cylindrical pattern film The cylindrical core 46 is inserted into the hollow portion 40 (S84). Thereafter, the pattern roll 52 (S85) in which the columnar core 46 is fitted inside the cylindrical pattern film 40 can be obtained by releasing the suction by the block 110.

[Production method of replication type master roll using production method of cylindrical pattern film]
The second method for producing a cylindrical pattern film of the present invention can be used for producing a replica type original roll for producing a cylindrical pattern film. FIG. 11 is a diagram schematically showing a production process of a replication type master roll. A method for producing a replica master roll will be described with reference to FIG.

  First, by preparing an original roll 30 having an uneven pattern formed on the inner surface (S91), applying a raw material liquid of an elastic material on the uneven pattern surface of the original roll 30 to form a film, and curing the film, A cylindrical pattern film 40 made of an elastic material to which the concave / convex pattern is transferred is formed (S92), and the cylindrical pattern film 40 is peeled from the original roll 30 (S93). In this step S91-S93, the method for producing the cylindrical pattern film 40 of the above-described second embodiment (S21-S27 in FIG. 3) can be used.

A conductive layer made of Ni or the like is formed by sputtering or the like on the outer surface of the cylindrical pattern film 40 having an uneven pattern, and then the cylindrical pattern film 40 is immersed in an electroforming tank to form a cylindrical electroformed film 42 such as a Ni film. Is formed (S94).
Then, the outer frame 44 is fitted on the outer side of the cylindrical electroformed film 42 (S95), and the cylindrical pattern film 40 on the inner side of the cylindrical electroformed film 42 is peeled off, thereby obtaining a duplicate master roll 55 (see FIG. S96).

As a method of fitting the outer frame 44 outside the cylindrical electroformed film 42, for example, the inner diameter of the outer frame 44 is expanded by heating the outer frame 44, and the cylindrical electroformed film 42 is placed in the outer frame 44. After fitting, a method of returning to normal temperature may be used.
In the step (S95-S96) of peeling the cylindrical pattern film 40 inside the cylindrical electroformed film 42, the peeling method using the block 130 inserted inside can be applied.

  The duplicated master roll 55 is a master roll having a concave-convex pattern on the inner surface, and the third embodiment described with reference to FIG. 9 and the second cylindrical pattern film manufacturing method described with reference to FIG. It can replace with the original roll 30 used for the preparation method of this pattern roll, and the preparation method of this replication type | formula original form roll 55, It can use for each preparation method.

"Pattern sheet manufacturing method using pattern roll"
A method for producing a pattern sheet by continuous imprinting using the pattern rolls 50 to 52 obtained by the production method of the above-described embodiment will be briefly described. Hereinafter, the pattern roll 50 will be described as an example, but any pattern roll can be used similarly.

FIG. 12 is a cross-sectional view showing a part of an apparatus for performing an imprint method by a roll-to-roll method.
In the apparatus, conveyance rolls 71 a and 71 b are arranged on both sides of the pattern roll 50, and an ultraviolet irradiation light source 72 is arranged below the pattern roll 50.

The pattern roll 50 is rotated in the direction of the arrow, and the film 60 is conveyed in synchronization therewith.
Along with the rotation of the pattern roll 50, the film 60 provided with the resist liquid 62a is transported by the transport roll 71a, and the surface of the pattern roll 50 is pressed against the resist liquid 62a. The resist liquid 62a is cured by being conveyed and irradiated with ultraviolet rays, and the resin layer 62 to which the concavo-convex pattern of the pattern roll 50 is transferred is formed. The pattern sheet 65 in which the resin layer 62 is formed on the support film 61 in the transport roll 71b is peeled from the pattern roll 50 and transported to the winding device.
In this case, an ultraviolet irradiation light source 72 is provided in order to use a photo-curing resist that is cured by irradiation with ultraviolet rays. However, when a thermosetting resist is used, a heater is provided instead of the ultraviolet irradiation light source. It should be.

  As described above, a pattern sheet can be efficiently produced using the pattern roll obtained by the production method of the present invention. According to the production method of the present invention, since the pattern roll can be obtained at a low cost, the production of the pattern sheet can be reduced.

[Peeling device]
Hereinafter, a peeling apparatus for carrying out the peeling of the resin cylindrical pattern film from the original roll will be described.

(Embodiment of the 1st peeling apparatus of this invention)
FIG. 13 is a cross-sectional view B cut along a plane parallel to the long axis direction and a cut portion end view A cut along a plane perpendicular to the long axis direction of the apparatus, showing a schematic configuration of the peeling apparatus 100 of the present embodiment. The peeling apparatus 100 according to the present embodiment is not limited to the case where the cylindrical pattern film 20 formed on the outer surface of the original roll 10 is peeled from the original roll 10, and the outer surface of a widely roll-shaped support (roll support). A cylindrical film (cylindrical film) made of an elastic material in close contact with the film can be used for peeling from the roll support. However, here, a case where the cylindrical pattern film 20 made of an elastic material formed on the outer surface of the original roll 10 is peeled as an example of a cylindrical film made of an elastic material in close contact with the outer surface of the roll support will be described.

  The peeling apparatus 100 inserts and removes a cylindrical peeling portion main body 102 supported on a support base 101 and an original plate roll 10 having a cylindrical pattern film 20 formed on the outer surface in the peeling portion main body 102. A receiving plate 103 to be supported, a fixing base 104 for supporting and fixing both ends of the receiving plate 103 outside the peeling portion main body 102, an inner surface 115 having an arcuate cross section, a plurality of holes 116 provided in the inner surface 115, and A suction passage 117 communicating with the hole 116 is provided, and four blocks 110A, 110B, 110C, and 110D arranged on the circumference, and these blocks 110A to 110D are arranged in the radial direction of the circumference where they are arranged. A movement control unit 105 to be moved, a suction unit 106 connected to the suction path 117, and a suction control unit 107 that controls the operation of the suction unit 106 are provided. In FIG. 13, the blocks 110A to 110D are assigned to the blocks arranged at different positions on the circumference, respectively, but all have the same configuration. Indicated as block 110.

  The movement control unit 105 includes a telescopic telescopic shaft 108 connected to the cylindrical inner wall of the peeling unit main body 102 and the block 110, and a drive control unit 109 that drives the telescopic shaft 108. In the cross-sectional view B of FIG. 13, the reference numerals 108a to 108e are respectively attached to the telescopic shafts provided at different positions in the long axis direction, but all have the same configuration and need not be particularly distinguished. In this case, it is simply expressed as the telescopic shaft 108.

  FIG. 14 shows a perspective view of the block 110. The block 110 includes an arcuate inner surface 115 in the cut end view A of FIG. As shown in FIG. 14, the inner surface 115 is a surface constituting a part of a cylindrical surface along the outer surface of the cylindrical pattern film 20 to be peeled, and the inner surface 115 has a number of suction holes. 116 is provided. As shown in the cut end view A of FIG. 13, the interior of the block 110 is hollow and constitutes a suction path 117 that communicates with the suction hole 116. The suction path 117 is connected to a suction pump which is the suction unit 106 from a suction port 118 provided at a part (one end in this example) of the block 110. Here, the outer surface 119 of the block 110 is a surface that constitutes a part of a cylinder concentric with the inner surface 115, but may be a surface to which the telescopic shaft 108 can be attached, and need not be a cylindrical surface.

  In addition, in order to improve the adsorptivity with respect to the cylindrical pattern film | membrane 20, you may affix the sheet | seat used as a cushion material which consists of rubber | gum etc. on the inner surface 115 of the block 110. FIG.

  The telescopic shaft 108 expands and contracts by the operation of an air cylinder or a ball screw, and displaces the block 110 along with the expansion and contraction. In this example, a total of 15 telescopic shafts, 3 in each, are installed in 5 different locations in the block length direction for one block 110, but the number of shafts is arbitrarily set according to the size of the block. Is possible. It is preferable that the shafts at the same position in the length direction of the four blocks 110 </ b> A to 110 </ b> D surrounding the cylindrical membrane 2 are moved equally by the same amount at the same timing. In one block 110, only one or two of a plurality of shafts arranged in the same position in the length direction may be used as a drive shaft. For example, as shown in the cut end view A of FIG. 13, instead of the three shafts 108 being arranged side by side, only one central portion is used as an expansion shaft for driving, and the two at both ends are It may be a spring or the like.

The peeling method by the peeling apparatus 100 of this embodiment is demonstrated.
First, the original roll 10 having the cylindrical pattern film 20 made of an elastic material formed on the outer surface is inserted into the peeling portion main body 102 through the receiving plate 103, and both ends of the receiving plate 103 are set on the fixed base 104. To do. Preferably, a receiving plate 103 having a length twice or more the roll length of the original roll 10 is prepared, and the receiving plate 103 is passed through the peeling portion main body 102 in advance, and then the peeling portion main body of the receiving plate 103 is prepared. The original plate roll 10 with the cylindrical pattern film 20 is inserted and placed on the part that is exposed to the outside, and the original plate roll 10 is inserted into the peeling portion main body 102 by moving the crane with both ends of the receiving plate 103 suspended by a crane. .

  Next, the telescopic shaft 108 is extended to move the block 110 inward so as to come into contact with the outer surface of the cylindrical pattern film 20, and the suction controller 106 is operated by the suction control unit 107 to form a cylindrical shape on the inner side surface 115 of the block 110. The outer surface of the pattern film 20 is adsorbed.

  In a state where the outer surface of the cylindrical pattern film 20 is adsorbed on the inner side surface 115 of the block 110, the telescopic shaft 108 is contracted to move the block 110 slowly outward, so that the cylindrical pattern film 20 is removed from the original roll 10. Remove. At this time, the speed at which the telescopic shaft is contracted is preferably about 10 to 30 mm / min.

  If it is difficult to control the expansion and contraction of all of the telescopic shafts in the same manner, as shown in FIG. 15, one end in the length direction of the block 110 is separated from the original roll before the other end. In this manner, the block 110 may be moved while being tilted.

Specifically, from the state where the block 110 is adsorbed to the cylindrical pattern film 20 (S101), the telescopic shaft 108a is contracted by 4 mm, the telescopic shaft 108b is 3 mm, the telescopic shaft 108c is 2 mm, and the telescopic shaft 108d is contracted by 1 mm. By moving in order from the telescopic shaft 108a side, only the end on the telescopic shaft 108a side is peeled off (S102).
After that, conversely, the telescopic shaft 108e is 4 mm, the telescopic shaft 108d is 3 mm, the telescopic shaft 108c is 2 mm, and the telescopic shaft 108 is contracted in this order, so that all the shafts 108a to 108e are moved in parallel by a total of 4 mm. S103). The overall length of the shaft 108 is 20 to 100 mm, and the movable distance is about 10 to 40 mm.

If it is not completely peeled off by the above operation, all the blocks 110A to 110D are moved further outward to be peeled off.
After the cylindrical pattern film 20 is completely peeled from the original roll 10, the original roll 10 is removed. The procedure of removing the original roll 10 can be performed by the reverse operation to that at the time of insertion.

  As described above, by using the peeling apparatus 100 of the present embodiment, the cylindrical pattern film 20 made of an elastic material can be easily peeled from the original roll 10 without damaging both, and the cylinder of the present invention. It can be suitably used in a method for producing a mold pattern film and a method for producing a pattern roll.

(Embodiment of the 2nd peeling apparatus of this invention)
FIG. 16 is a cross-sectional view B cut along a plane parallel to the long axis direction and a cut-part end view A cut along a plane perpendicular to the long axis direction of the apparatus, showing a schematic configuration of the peeling apparatus 120 of this embodiment. The peeling apparatus 100 of the present embodiment is not limited to the case where the cylindrical pattern film 40 formed on the inner surface of the original roll 30 is peeled from the original roll 30, and the inner surface of a widely roll-shaped support (roll support). A cylindrical film (cylindrical film) made of an elastic material in close contact with the film can be used for peeling from the roll support. However, here, a case where the cylindrical pattern film 40 made of an elastic material formed on the inner surface of the original roll 30 is peeled as an example of a cylindrical film made of an elastic material in close contact with the inner surface of the roll support will be described.

  The peeling device 120 communicates with the peeling portion central axis 123, the fixing base 124 that supports the central axis, the outer surface 139 having an arcuate cross section, a plurality of holes 136 provided in the outer surface 139, and the holes 136. Four blocks 130A, 130B, 130C, and 130D that are arranged on the circumference, and a movement control unit that moves these blocks 130A to 130D in the radial direction of the circumference in which they are arranged 125, a suction unit 126 connected to the suction path 137, and a suction control unit 127 that controls the operation of the suction unit 126. In FIG. 16, the blocks 130 </ b> A to 130 </ b> D are assigned to blocks arranged at different positions on the circumference, but all have the same configuration. This is expressed as a block 130.

  The movement controller 125 includes a telescopic telescopic shaft 128 connected to the surface of the peeling portion central axis 123 and the block 130, and a drive controller 129 that drives the telescopic shaft 128. In the cross-sectional view B of FIG. 16, the telescopic shafts provided at different positions in the long axis direction are denoted by reference numerals 128a to 128e, respectively, but all have the same configuration and need not be particularly distinguished. In this case, it is simply expressed as the telescopic shaft 128.

  FIG. 17 shows a perspective view of the block 130. The block 130 includes an arcuate outer surface 139 in the cut end view A of FIG. As shown in FIG. 17, the outer surface 139 is a surface constituting a part of a cylindrical surface along the inner surface of the cylindrical pattern film 40 to be peeled, and the outer surface 139 has a large number of suction surfaces. A hole 136 is provided. As shown in the cut end view A of FIG. 16, the inside of the block 130 is hollow and forms a suction path 137 communicating with the suction hole 136. The suction path 137 is connected to a suction pump which is a suction unit 126 from a suction port 138 provided in a part (one end in this example) of the block 130. Here, the inner side surface 135 of the block 130 is a surface that constitutes a part of a cylinder concentric with the outer side surface 139, but may be a surface to which the telescopic shaft 128 can be attached, and need not be a cylindrical surface.

  In addition, in order to improve the adsorptivity with respect to the cylindrical pattern film | membrane 40, you may affix the sheet | seat used as a cushion material which consists of rubber | gum etc. on the outer surface 139 of the block 130. FIG.

  As the telescopic shaft 128, the same one as the telescopic shaft 108 of the first peeling apparatus 100 described above can be applied.

The peeling method by the peeling apparatus 120 of this embodiment is demonstrated.
First, the master roll 30 having the pattern film 40 made of an elastic material formed on the inner surface is set outside the block 130 with the telescopic shaft 128 sufficiently contracted.
Next, the telescopic shaft 128 is extended to move the four blocks 130 outward so as to come into contact with the inner surface of the cylindrical pattern film 40, and the suction controller 126 is operated by the suction controller 127 so as to move to the outer surface 139 of the block 130. The inner surface of the cylindrical pattern film 20 is adsorbed.

  With the inner surface of the cylindrical pattern film 40 adsorbed to the outer surface 139 of the block 130, the telescopic shaft 128 is contracted and the block 130 is moved slowly inward to remove the cylindrical pattern film 40 from the original roll 30. Remove. The speed at which the telescopic shaft is contracted at this time is preferably about 10 to 30 mm / min.

If it is difficult to peel the expansion and contraction of all of the telescopic shafts in the same manner, one end in the length direction of the block 130 is removed from the original roll before the other end in the same manner as the first peeling device. The block 130 may be tilted and moved so as to be separated.
After the cylindrical pattern film 40 is completely peeled from the original roll 30, the original roll 30 is removed.

  As described above, by using the peeling apparatus 120 of the present embodiment, the cylindrical pattern film 40 made of an elastic material can be easily peeled from the original roll 30 without damaging both, and the cylinder of the present invention. It can be suitably used in a method for producing a mold pattern film and a method for producing a pattern roll.

DESCRIPTION OF SYMBOLS 10, 30 Master roll 11 Cylindrical member 12, 32 Uneven pattern layer 20 Tubular pattern film 20a Raw material liquid 22 of elastic material Cylindrical electroformed films 23, 24 Column core 25 Air tube 26 Cylindrical frame 31 Cylindrical member 32 Uneven pattern layer 40 Cylindrical pattern film 40a Elastic material liquid 42 Cylindrical electroformed film 44 Outer frame 46 Cylindrical core 48 Metal layers 50, 51, 52, 53 Pattern roll 55 Replica master roll 100, 120 Peeling device 105, 125 Movement control unit 106, 126 Suction unit 107, 127 Suction control unit 108, 128 Telescopic shaft 109, 129 Drive control unit 110, 130 Block 115, 135 Inner side surface 116, 136 Hole 117, 137 Suction passage 118, 138 Suction port 119, 139 Outer side surface

Claims (15)

The elastic material is formed by applying a raw material liquid of an elastic material to the outer surface of an original roll having an uneven pattern formed on the outer surface to form a film, and curing the film to transfer the uneven pattern. A cylindrical pattern film made of
Three or more blocks having an inner surface with an arc-shaped cross section along the outer surface of the cylindrical pattern film, and the inner surface of each block are arranged opposite to each other in the circumferential direction of the outer surface of the cylindrical pattern film Then, the outer surface of the cylindrical pattern film is adsorbed on the inner side surface of each block,
A method for producing a cylindrical pattern film in which each of the blocks is moved outward in a normal direction with respect to the outer surface of the cylindrical pattern film in the adsorbed state, thereby peeling the cylindrical pattern film from the original roll. The concave / convex pattern is transferred to the inner surface of a cylindrical master roll formed with a concave / convex pattern by applying a raw material liquid of an elastic material to form a coating and curing the coating. Forming a cylindrical pattern film made of the elastic material;
Three or more blocks having an outer surface with an arcuate cross section along the inner surface of the cylindrical pattern film, and the outer surfaces of the blocks are arranged opposite to each other in the circumferential direction of the inner surface of the cylindrical pattern film Then, the inner surface of the cylindrical pattern film is adsorbed to the outer surface of each block,
A method for producing a cylindrical pattern film in which each of the blocks is moved inward in a normal direction with respect to the inner surface of the cylindrical pattern film in the adsorbed state to peel the cylindrical pattern film from the original roll. When the cylindrical pattern film is peeled from the original roll, the block is moved by the amount of the cylindrical pattern film that is in close contact with the block is peeled off from the original roll , and then the block is stopped. 3. The method for producing a cylindrical pattern film according to claim 1, wherein a portion other than the portion in close contact with the block is peeled off from the original roll using the elastic force of the cylindrical pattern film.   3. The method for producing a cylindrical pattern film according to claim 1, wherein, when the block is moved, the block is inclined so that one end in the length direction of the block is separated from the original roll before the other end. 4. .   The method for producing a cylindrical pattern film according to any one of claims 1 to 4, wherein a porous sheet is interposed between the cylindrical pattern film and a surface of the block that adsorbs the cylindrical pattern film and the cylindrical pattern film. . Using the method for producing a cylindrical pattern film according to any one of claims 1 to 5,
A pattern roll production method for producing a pattern roll having an uneven pattern corresponding to the uneven pattern of the original roll on the outer surface. When the cylindrical pattern film obtained by the method for producing the cylindrical pattern film has an uneven pattern on the inner surface,
A cylindrical electroformed film is formed by electroforming on the inner surface of the cylindrical pattern film,
The cylindrical pattern film is peeled off from the cylindrical electroformed film, and a cylindrical core coinciding with the inner periphery of the cylindrical electroformed film is fitted into the cylindrical electroformed film, or the cylindrical electroformed film is inserted into the cylindrical electroformed film. The pattern roll according to claim 6, wherein the pattern roll is obtained by fitting a cylindrical core that coincides with the inner periphery of the cylindrical electroformed film and peeling the cylindrical pattern film from the cylindrical electroformed film. Manufacturing method. Upon the release of the tubular pattern film from said tubular electroformed film,
Along the outer surface of the tubular pattern film, cross-sectional blocks of three or more having an arcuate inner surface, facing the inner surface of each of the block in different positions in the circumferential direction of the outer surface of the tubular pattern film Then, the outer surface of the cylindrical pattern film is adsorbed on the inner side surface of each block,
By moving the blocks in a state where the adsorbed normal direction outwardly relative to the outer surface of the tubular pattern film pattern according to claim 7, wherein the peeling the tubular pattern film from said tubular electroformed film A method for producing a roll. When the cylindrical pattern film obtained by the method for producing the cylindrical pattern film has an uneven pattern on the outer surface,
The method for producing a pattern roll according to claim 7, wherein the pattern roll is obtained by fitting a cylindrical core that matches the inner periphery of the cylindrical pattern film into the cylindrical pattern film. When the cylindrical pattern film obtained by the molding method of the cylindrical pattern film has an uneven pattern on the inner surface,
By flipping the cylindrical pattern film, it has the uneven pattern on the outer surface,
The method for producing a pattern roll according to claim 7, wherein the pattern roll is obtained by fitting a cylindrical core that coincides with the inner periphery of the cylindrical pattern film into the cylindrical pattern film having the uneven pattern on the outer surface. When flipping the cylindrical pattern film,
The cylindrical pattern film is supported from the outer surface while maintaining a cylindrical shape,
The method for producing a pattern roll according to claim 10, wherein one end of the cylindrical pattern film in the length direction is gripped, and the one end is pulled from the inside of the cylinder toward the other end to turn it over.   The method for producing a pattern roll according to claim 11, wherein when the cylindrical pattern film is turned over, the cylindrical pattern film is turned upside down while maintaining a cylindrical shape so as to be fitted into an air tube from the one end. When fitting the cylindrical core into the cylindrical pattern film,
Three or more blocks having an inner surface with an arc-shaped cross section along the outer surface of the cylindrical pattern film, and the inner surface of each block are arranged opposite to each other in the circumferential direction of the outer surface of the cylindrical pattern film Then, the outer surface of the cylindrical pattern film is adsorbed on the inner side surface of each block,
By moving the respective blocks outward in the normal direction with respect to the outer surface of the cylindrical pattern film in the adsorbed state, the hollow portion of the cylindrical pattern film is expanded,
13. The cylindrical core is inserted into the cylindrical pattern film by releasing the adsorption by the blocks after the cylindrical core is inserted into the expanded hollow portion. A method for producing a pattern roll. A peeling device for peeling a cylindrical film made of an elastic material in close contact with the outer surface of a roll-shaped support from the roll-shaped support,
Three or more blocks disposed on the circumference, each having an arcuate inner surface, a plurality of holes provided in the inner surface, and suction passages communicating with the holes;
A suction part connected to the suction path;
A movement control unit for moving the block in the radial direction;
A peeling apparatus comprising: a suction control unit that controls the operation of the suction unit. A peeling device for peeling a cylindrical film made of an elastic material in close contact with the inner surface of a cylindrical roll-shaped support, from the roll-shaped support,
Three or more blocks disposed on the circumference, each having an outer surface having a circular cross section, a plurality of holes provided in the outer surface, and suction paths communicating with the holes;
A suction part connected to the suction path;
A movement control unit for moving the block in the radial direction;
A peeling apparatus comprising: a suction control unit that controls the operation of the suction unit.