WO2009107294A1 - ローラー型ナノインプリント装置、ローラー型ナノインプリント装置用金型ロール、ローラー型ナノインプリント装置用固定ロール、及び、ナノインプリントシートの製造方法 - Google Patents
ローラー型ナノインプリント装置、ローラー型ナノインプリント装置用金型ロール、ローラー型ナノインプリント装置用固定ロール、及び、ナノインプリントシートの製造方法 Download PDFInfo
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- WO2009107294A1 WO2009107294A1 PCT/JP2008/071030 JP2008071030W WO2009107294A1 WO 2009107294 A1 WO2009107294 A1 WO 2009107294A1 JP 2008071030 W JP2008071030 W JP 2008071030W WO 2009107294 A1 WO2009107294 A1 WO 2009107294A1
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- WIPO (PCT)
- Prior art keywords
- roll
- mold roll
- mold
- peripheral surface
- film
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/04—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing using rollers or endless belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00317—Production of lenses with markings or patterns
- B29D11/00346—Production of lenses with markings or patterns having nanosize structures or features, e.g. fillers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
- B29C2059/023—Microembossing
Definitions
- the present invention relates to a roller-type nanoimprint apparatus, a mold roll for a roller-type nanoimprint apparatus, a fixed roll for a roller-type nanoimprint apparatus, and a method for producing a nanoimprint sheet. More specifically, a roller-type nanoimprint apparatus suitable for producing a surface-treated resin sheet capable of obtaining a low reflectance, a mold roll for a roller-type nanoimprint apparatus, a fixed roll for a roller-type nanoimprint apparatus, and a nanoimprint sheet It is related with the manufacturing method.
- nano-imprint technology a technology for transferring the shape by pressing nanometer-sized (1-1000 ⁇ m) irregularities (hereinafter also referred to as “nanostructures”) engraved in a mold onto a resin material applied on a substrate. Attention has been paid to research aimed at application to optical materials, IC miniaturization, clinical test substrates, and the like.
- Advantages of nanoimprint technology include the ability to produce parts with various features at lower costs compared to conventional patterning technology using lithography and etching. This is because the configuration of the device used in the nanoimprint technology is simple and cheap compared to the device used in the conventional technology, and it is possible to manufacture a large number of parts having the same shape in a short time.
- Known nanoimprint technology methods include thermal nanoimprint technology and UV nanoimprint technology.
- a thin film of an ultraviolet curable resin is formed on a transparent substrate, a mold having a nanostructure is pressed onto the thin film, and then irradiated with ultraviolet rays, thereby forming a metal on the transparent substrate.
- a thin film having a nano structure with an inverted shape of a mold is formed.
- a thin film having a nanostructure In order to manufacture a thin film having a nanostructure at a low price by nanoimprint technology, it is preferable to use roll-to-roll processing rather than batch processing. According to the roll-to-roll process, a thin film having a nanostructure can be continuously produced using a mold roll.
- small mold rolls 52 are sequentially slid horizontally and applied onto a large mold roll 51 while continuing the pattern.
- a method is disclosed in which a pattern is transferred to an ultraviolet curable resin and a pattern is formed on a large mold roll 51 (see, for example, Patent Document 1).
- the formed nanostructure in order to continue the pattern in the large roll 51, the formed nanostructure basically has a seam, and a nanostructure larger than the width of the small mold roll 52 is formed. Not suitable for.
- rolls used for roll-to-roll processing methods for producing rolls (for example, see Patent Documents 2 and 3) in which a concavo-convex pattern is directly formed on a roll material are disclosed in fields other than nanoimprint technology.
- this method when this method is applied to the nanoimprint technology, the mold roll formed with the nanostructure must be provided with a bearing mechanism for connecting the mold roll and the nanoimprint apparatus, and the mold roll is expensive. It becomes a problem in mass production.
- the mold roll is not permanently used in the nanoimprint apparatus, and needs to be replaced after a certain period of use, so that it is strongly required to be inexpensive. For this, it is effective to simplify the structure of the die roll as an exchange member by making the die roll cylindrical. On the other hand, in order to prevent the thickness of the film to which the nanostructure is transferred from becoming uneven, it is necessary to transfer the nanostructure while uniformly pressing the surface of the film to be transferred.
- a method for attaching to a nanoimprint apparatus capable of controlling the position and orientation of the mold roll with high accuracy is required.
- the position and orientation of the mold roll are controlled with high accuracy and the mold roll can be easily attached and detached. It was difficult to achieve both.
- the present invention has been made in view of the above situation, and can prevent the thickness of a film to be transferred onto which a nanostructure has been transferred by a mold roll from becoming non-uniform, and facilitate the mold roll. It is an object of the present invention to provide a roller-type nanoimprint apparatus, a roller roll for nanoimprint apparatus, a fixing roll for roller-type nanoimprint apparatus, and a method for producing a nanoimprint sheet.
- the present inventors have made various studies on a roller-type nanoimprint apparatus using a cylindrical mold roll, and have focused on a method for attaching the mold roll to the nanoimprint apparatus. Then, using an elastic film that can be expanded by injecting fluid, the mold roll is attached and detached while the elastic film is contracted, and the mold roll is held from the inside while the elastic film is expanded. It has been found that the thickness of the film to which the nanostructure is transferred by the mold roll can be prevented from becoming non-uniform, and that the mold roll can be easily replaced. The inventors have arrived at the present invention by conceiving that the problem can be solved.
- the present invention is a roller-type nanoimprint apparatus that continuously forms nanometer-size protrusions on the surface of a film to be transferred by rotating the mold roll, and the mold roll has a nanometer on the outer peripheral surface.
- the nanoimprint apparatus has a fluid container including an elastic film that can be expanded by injecting fluid in a region surrounded by an inner peripheral surface of the mold roll.
- a roller-type nanoimprint apparatus (hereinafter referred to as “first nanoimprint apparatus according to the present invention”), in which the mold roll is attached and detached while the elastic film is contracted, and the elastic film is expanded and the mold roll is held from the inside. It is also called.)
- the pressing of the transferred film and the releasing from the transferred film are continuously performed.
- a product having nanometer-sized protrusions formed on the surface can be manufactured at high speed and in large quantities.
- a seamless (seamless) surface structure can be formed.
- the film to be transferred is capable of forming a nanometer-size projection having an inverted shape of a nanometer-size depression formed on the outer peripheral surface of the mold roll by embossing the mold roll It is not specifically limited, For example, sheet-like resin is suitable. When transferring to a resin, it is preferable to carry out a curing treatment after embossing on an uncured or semi-cured resin.
- a surface structure in which a nanometer-sized depression is formed and a surface structure in which a nanometer-size protrusion is formed are also referred to as a nanostructure. Examples of the nanostructure include a moth-eye structure and a wire grid structure.
- the first nanoimprint apparatus of the present invention has a fluid container including an elastic film that can be expanded by injecting fluid in a region surrounded by an inner peripheral surface of a mold roll.
- the fluid container is not particularly limited as long as it has a structure capable of inflating the elastic membrane by injecting a fluid.
- the fluid container may be a bag-like elastic membrane, or a rigid container.
- the opening may be sealed with an elastic film.
- the pressure of the fluid it is possible to uniformly apply pressure to the inner peripheral surface of the mold roll to hold the mold roll, and thus it is possible to obtain a film to be transferred having a uniform thickness.
- the elastic film contracts and the mold roll can be attached and detached, so that the mold roll can be easily replaced.
- the first roller-type nanoimprint apparatus of the present invention is not particularly limited by other members as long as it includes the above-described mold roll and fluid container as constituent elements.
- the first roller-type nanoimprint apparatus of the present invention for example, (1) a hollow roll that can be attached to the apparatus and has an opening is formed, and the elastic film is a bag.
- the fluid container is an elastic bag made of the bag-like elastic film, and the nanoimprint apparatus has the hollow roll disposed in a region surrounded by the inner peripheral surface of the mold roll, An elastic bag is arranged in the hollow roll, and the mold roll is held by inflating the elastic bag and bringing the exposed portion from the opening of the hollow roll into contact with the inner peripheral surface of the mold roll. A mode in which the mold roll is rotated by rotating the hollow roll while holding the roll.
- the fluid container can be attached to the nanoimprint apparatus and has a hollow roll formed with an opening.
- the nanoimprint apparatus holds the mold roll by inflating the elastic film and bringing it into contact with the inner peripheral surface of the mold roll, and holding the mold roll.
- the elastic membrane has a bag shape
- the fluid container is an elastic bag made of the bag-like elastic membrane, and is attached around the rotating body, and the nanoimprint apparatus inflates the elastic bag.
- the mold roll is held by bringing it into contact with the inner peripheral surface of the mold roll, and the mold roll is rotated by rotating the rotating body while holding the mold roll.
- an elastic body is provided on the surface facing the inner peripheral surface of the mold roll, except for the portion where the opening is formed. A form is mentioned. According to this aspect, even when the mold roll and the hollow roll are in contact with each other, the elastic body functions as a buffer material, and unevenness occurs in the thickness of the film to be transferred, and the hollow roll and the mold roll are It can be prevented from being damaged.
- a plurality of openings formed in the hollow roll is preferably formed from the viewpoint of stably holding the mold roll.
- the plurality of openings are preferably substantially uniform in size, and are preferably provided at substantially uniform intervals.
- a preferable form of the rotating body includes a form in which an elastic body is provided on a region of the outer peripheral surface where the elastic bag is not attached. According to this embodiment, even when the mold roll and the rotating body are in contact with each other, the elastic body functions as a buffer material, and unevenness occurs in the thickness of the film to be transferred, and the rotating body and the mold roll are It can be prevented from being damaged.
- a preferable form of the mold roll includes a form in which a seam is not substantially formed.
- a mold pattern composed of nanometer-sized depressions formed on the outer peripheral surface of the mold roll is continuously formed on the outer peripheral surface of the mold roll.
- nanometer-sized protrusions can be formed substantially seamlessly on the surface of the transfer film.
- the “substantially no seam is formed” may be a state where the presence of the seam cannot be detected optically. It is preferable that the linear step is not formed on the outer peripheral surface of the mold roll at a height exceeding 0.6 ⁇ m.
- variety exceeding 0.6 micrometer is preferable.
- a mold roll having substantially no seam can be obtained when a mold pattern is directly formed on the outer peripheral surface of a cylindrical roll material.
- both ends of a plate-shaped roll material on which a mold pattern is formed in advance are joined, a seam is formed at the joined portion.
- tube is mentioned.
- a substantially seamless mold roll can be formed, and the above-described effects can be obtained.
- cutting polishing is preferably used.
- a method for cutting and polishing the surface of the aluminum tube a method in which a diamond cutting tool is slid in the direction of the rotation axis and continuously cut with respect to the rotated aluminum tube is preferable. Line marks remain on the surface of the mold roll made from the aluminum tube polished by such a method.
- the line scar is a size that cannot be visually confirmed, but can be confirmed, for example, by observing the surface with a scanning electron microscope (SEM). Further, according to the anodizing method, a conical depression having a nanometer size can be formed on the outer peripheral surface of the aluminum tube. Such a depression can be obtained only by using an anodic oxidation method, and an oxide film is planarly formed by chemical oxidation.
- the present invention also relates to a mold roll suitably used in the first roller type nanoimprint apparatus of the present invention.
- the first mold roll of the present invention is for a roller-type nanoimprint apparatus for continuously forming nanometer-size protrusions on the surface of a film to be transferred by performing pressing on the film to be transferred while rotating.
- the mold roll is a cylindrical body having a nanometer-sized depression formed on the outer peripheral surface thereof, and a member disposed in a region surrounded by the inner peripheral surface of the mold roll.
- This is a roller roll for a nanoimprint apparatus having an alignment mechanism used for positioning. Examples of the positioning mechanism include a fitting structure and a hook.
- the mold roll can be easily attached and detached, and the mold roll can be prevented from slipping and shifting when the mold is pressed. Can be prevented.
- the second mold roll of the present invention is for a roller-type nanoimprint apparatus for continuously forming nanometer-sized protrusions on the surface of a film to be transferred by performing stamping on the film to be transferred while rotating.
- a die roll wherein the die roll is cut and polished on an outer peripheral surface of a cylindrical aluminum tube formed by extrusion, and further, etching and anodization are alternately repeated to form a cone on the outer peripheral surface.
- It is a die roll for a roller-type nanoimprint apparatus in which a depression of a shape is formed at a depth smaller than the wavelength of light.
- Extrusion is suitable as a method for producing a cylindrical aluminum tube, but an aluminum tube produced by extrusion may have irregularities larger than nanometer size on its surface.
- the surface smoothness of the aluminum tube after anodization can be ensured by cutting and polishing the aluminum tube before anodizing.
- streak-like traces along the circumferential direction may remain according to the cutting and polishing, and streak-like traces along the extending direction of the pipe may remain according to the extrusion process.
- the inner peripheral surface of the pipe is rarely subjected to surface processing, traces of extrusion are likely to remain on the inner peripheral surface of the pipe.
- the present invention also relates to a fixed roll suitably used in the first roller type nanoimprint apparatus of the present invention.
- the first fixed roll of the present invention continuously forms nanometer-size projections on the surface of the film to be transferred by rotating a cylindrical mold roll having nanometer-size depressions formed on the outer peripheral surface.
- It is a fixed roll for a roller type nanoimprint apparatus, and the fixed roll is arranged in a region (inside the cylinder) surrounded by the inner peripheral surface of the mold roll, and can be expanded by injecting fluid.
- the film roll is attached, the mold roll is attached and detached with the elastic film contracted, and the elastic roll expands and the fixed roll rotates while holding the mold roll from the inside to rotate the mold roll.
- This is a fixed roll for a roller-type nanoimprint apparatus that has a positioning mechanism used for positioning with a mold roll. Examples of the positioning mechanism include a fitting structure and a hook. According to the first fixed roll of the present invention, since the mold roll can be positioned by the positioning mechanism, the mold roll can be easily attached and detached, and the mold roll can be prevented from slipping and slipping when the mold is pushed. can do
- the second fixed roll of the present invention continuously forms nanometer-size protrusions on the surface of the film to be transferred by rotating a cylindrical mold roll having nanometer-size depressions formed on the outer peripheral surface thereof.
- a fixed roll for a roller-type nanoimprint apparatus wherein the fixed roll is disposed in a region surrounded by an inner peripheral surface of the mold roll, and is attached with an elastic film that can be expanded by fluid injection.
- the mold roll is attached and detached while the elastic film is contracted, and the mold roll is rotated by rotating the fixed roll while the elastic film expands and holds the mold roll from the inside.
- a roller-type nanoimprint apparatus fixing roll provided with a bearing.
- the mold roll can be switched to a free state and rotated when the mold roll is displaced from the position set by impact or the like.
- the apparatus it is possible to adjust the apparatus so as to return it faster to the set position.
- it can prevent that a metal mold
- the elastic film may constitute a part of the fixing roll or may be a separate member from the fixing roll.
- the present invention preferably also relates to a method for producing a nanoimprint sheet using the first roller-type nanoimprint apparatus of the present invention. That is, a method for producing a nanoimprint sheet having nanometer-sized protrusions formed on the surface, the manufacturing method comprising a cylindrical mold roll having a nanometer-sized depression formed on the outer peripheral surface, and the mold A fluid container provided with an elastic membrane that is provided in a region surrounded by the inner peripheral surface of the roll and that can be expanded by injecting fluid, and the mold roll can be attached and detached while the elastic membrane is contracted.
- a method for producing a nanoimprint sheet in which the mold roll is held from the inside in a state where the elastic film is expanded and the mold roll is continuously pressed while the mold roll is rotated (hereinafter referred to as the present invention).
- the present invention a method for producing a nanoimprint sheet, in which the mold roll is held from the inside in a state where the elastic film is expanded and the mold roll is continuously pressed while the mold roll is rotated.
- the present invention a method for producing a nanoimprint sheet, in which the mold roll is held from the inside in a state where the elastic film is expanded and the mold roll is continuously pressed while the mold roll is rotated.
- the nanoimprint sheet is not particularly limited as long as a nanometer-size projection is formed on the surface, and for example, a resin sheet is suitable.
- the nanoimprint sheet can be suitably used as an antireflection film, for example.
- the above manufacturing method may be a method of continuously embossing the nanoimprint sheet while rotating the mold roll.
- the present inventors rotate the mold roll while holding the mold roll by at least three pinch rolls (holding rolls) arranged substantially rotationally symmetrical with respect to the rotation center (rotation axis) of the mold roll. It has been found that the thickness of the film to which the nanostructure is transferred by the mold roll can be prevented from becoming non-uniform depending on the structure, and that the mold roll can be easily replaced. That is, the present invention is a roller-type nanoimprint apparatus that continuously forms nanometer-size protrusions on the surface of a film to be transferred by rotating the mold roll, and the mold roll has a nanometer on the outer peripheral surface. The nanoimprint apparatus is configured to hold the mold roll by at least three pinch rolls arranged substantially rotationally symmetrically with respect to the rotation center of the mold roll.
- a roller-type nanoimprint apparatus to be rotated (hereinafter also referred to as a second nanoimprint apparatus of the present invention).
- a second nanoimprint apparatus of the present invention it is not necessary to use a fixed roll, so that the mold roll can be easily replaced.
- the pinch roll rotates the mold roll by rotating the film to be transferred together with the mold roll while pressing the film to be transferred from both sides (both main surface sides) with a constant pressure.
- the membrane can be sent out.
- the mold roll has substantially no seam. Moreover, it is preferable that the said mold roll forms the said nanometer size hollow by the anodic oxidation method in the outer peripheral surface of the grind
- the second mold roll of the present invention and the second fixed roll of the present invention are also suitably used in the second nanoimprint apparatus of the present invention.
- the present invention also preferably relates to a method for producing a nanoimprint sheet using the second roller-type nanoimprint apparatus of the present invention. That is, a method for producing a nanoimprint sheet having nanometer-sized protrusions formed on the surface, the manufacturing method comprising a cylindrical mold roll having a nanometer-sized depression formed on the outer peripheral surface, and the mold And at least three pinch rolls arranged substantially rotationally symmetrical with respect to the rotation center of the roll, and the mold roll is held by the at least three pinch rolls,
- a nanoimprint sheet manufacturing method (hereinafter, also referred to as a second sheet manufacturing method of the present invention) in which at least three pinch rolls are continuously embossed on the transfer film is also one aspect of the present invention. is there.
- a nanoimprint sheet having a uniform film thickness can be manufactured at low cost.
- the manufacturing method may be a method in which the nanoimprint sheet is continuously pressed while the mold roll and the at least three pinch rolls are rotated.
- roller-type nanoimprint apparatus of the present invention it is possible to prevent the thickness of the film to be transferred onto which the nanostructure has been transferred by the mold roll from becoming uneven, and to easily replace the mold roll. Can do.
- FIG. 1 is an explanatory diagram illustrating an overall configuration of a roller-type nanoimprint apparatus according to the first embodiment.
- the belt-shaped base film 12 is sent out from the base film roll 11 in the direction indicated by the arrow in FIG.
- an uncured resin is applied by the die coater 14.
- the base film 12 moves by a half circumference along the outer peripheral surface of the cylindrical mold roll 15. At this time, the resin applied to the base film 12 contacts the outer peripheral surface of the mold roll 15.
- a material of the base film 12 For example, a triacetyl cellulose (TAC) and a polyethylene terephthalate (PET) can be used.
- TAC triacetyl cellulose
- PET polyethylene terephthalate
- the resin a resin that is cured by an energy ray such as an electromagnetic wave such as an ultraviolet ray or visible light is suitable. In the present embodiment, an ultraviolet curable resin is used.
- the mold roll 15 is a cylindrical body in which a plurality of substantially conical (cone-shaped) holes having a depth of about 200 nm (the bottom surface of the cone is on the aluminum surface side) are formed on the outer peripheral surface.
- the dimensions of the cylinder are an inner diameter of 250 mm, an outer diameter of 260 mm, and a length of 400 mm.
- Such a mold roll 15 is prepared by cutting and polishing the outer peripheral surface of a cylindrical aluminum tube produced by extrusion, and then forming an aluminum anode on the smooth aluminum surface (outer peripheral surface) of the obtained polished aluminum tube. It can be produced by repeatedly performing oxidation and etching three times. Since the die roll 15 is produced by simultaneously anodizing and etching the outer periphery of a cylindrical aluminum tube, it has a seamless (seamless) nanostructure. Therefore, the seamless nanostructure can be continuously transferred to the ultraviolet curable resin.
- a cylindrical pinch roll 16 is disposed at a position where the base film 12 first contacts the outer peripheral surface of the mold roll 15 so as to face the outer peripheral surface of the mold roll 15. At this position, the base film 12 is sandwiched between the mold roll 15 and the pinch roll 16, and the mold roll 15 and the ultraviolet curable resin are brought into pressure contact with each other, whereby the surface shape of the mold roll 15 is ultraviolet curable. Transferred to resin. In order to sandwich the base film 12 uniformly between the mold roll 15 and the pinch roll 16, the width of the base film 12 is smaller than the length of the mold roll 15 and the pinch roll 16.
- the pinch roll 16 is made of rubber.
- the base film 12 moves along the pinch roll 17 arranged so as to face the outer peripheral surface of the mold roll 15, and is cured by UV curing.
- the film is peeled from the mold roll 15 together with the film of the conductive resin.
- the lamination film 19 supplied from the lamination film roll 18 is bonded to the side on which the resin film of the base film 12 is disposed by the pinch roll 20.
- the laminated film roll 21 is produced by winding up the laminated film of the base film 12, the ultraviolet curable resin film having a nanostructure, and the lamination film 19. By laminating the lamination film 19, dust adheres to the resin film surface and scratches are prevented.
- the resin film (transfer target film) 31 of the laminated film roll 21 produced in this way has a large number of approximately conical protrusions 32 with a height of about 200 nm and a distance between vertices of about 200 nm. It has a formed surface structure.
- a surface structure is generally referred to as a “moth-eye structure”, and a film having a moth-eye structure has, for example, an ultra-low reflection that can make the visible light reflectance about 0.15%.
- a membrane Known as a membrane.
- the refractive index of the interface has an air refractive index on the film surface as shown in FIG. From the refractive index of 1.0, it can be considered that it gradually increases gradually until it becomes equal to the refractive index of the constituent material of the film (in the case of the resin film 31, 1.5). As a result, there is substantially no refractive index interface, and the reflectance at the film interface is extremely reduced.
- the mold roll 15 shown in FIG. 4A is attached to the nanoimprint apparatus using a metal fixed roll 151 and a rubber balloon 156 shown in FIG. 4B.
- the structure of the mold is used compared to the case where a metal column directly attached in the nanoimprint apparatus is used for the mold. Can be simplified, and the mold can be manufactured at low cost.
- the polished aluminum tube a mirror-finished surface obtained by cutting the surface of a cylindrical aluminum tube formed by extrusion with high accuracy is available at low cost.
- the mold roll 15 is attached to and detached from the fixed roll 151, only the mold roll 15 can be replaced and maintained, so that the running cost of the nanoimprint apparatus can be reduced.
- FIG. 5 is a schematic perspective view showing a state in which the fixed roll is inserted into the cylinder of the mold roll.
- FIG. 6 is a schematic cross-sectional view showing a state (at the time of attachment / detachment) in which the fixed roll is inserted into the cylinder of the mold roll in the first embodiment.
- FIG. 7 is a schematic cross-sectional view showing a state (at the time of fixing) in which a fixing roll is inserted into the cylinder of the mold roll in the first embodiment.
- the fixed roll 151 includes a hollow body portion 151a in which a rubber balloon 156 is enclosed, and a shaft portion 151b extending from both end faces thereof.
- the body part 151a is cylindrical, and both ends of the cylinder are constituted by wall surfaces.
- a plurality of openings formed in parallel to the rotation axis direction of the fixed roll 151 that is, the extending direction of the shaft portion 151b are formed in the body portion 151a.
- the opening of the body portion 151a is preferably provided in parallel to the rotation axis direction of the fixed roll 151 so that the resin is easily pressurized with an equal pressure.
- the plurality of openings are formed with an equal size and are arranged at equal intervals.
- the opening shape of the body portion 151a is preferably not angular.
- the outer diameter of the trunk portion 151a is 246 mm, and the length of the trunk portion 151a is 400 mm.
- the shaft portion 151b is inserted into a shaft mounting portion in the nanoimprint apparatus. Due to the power supplied through the shaft mounting portion, the fixed roll 151 can rotate with the extending direction of the shaft portion 151b as the rotation axis.
- the rubber balloon 156 disposed in the body portion 151 a of the fixing roll 151 is for fixing the mold roll 15.
- the cylindrical mold roll 15 is attached around the body portion 151a of the fixed roll 151 by inserting the fixed roll 151 into the cylinder.
- the rubber balloon 156 is kept in a deflated state as shown in FIG.
- the mold roll 15 is removed, the rubber balloon 156 is kept in a deflated state.
- a fluid is injected into the rubber balloon 156 through the pressure port 256, and as shown in FIG. 7, from the opening formed in the body portion 151a of the fixed roll 151.
- the rubber balloon 156 is inflated until the rubber balloon 156 protrudes and is pressed against the inner peripheral surface of the mold roll 15. That is, in this embodiment, the fixed roll 151 is a hollow roll, and the rubber balloon 156 is an elastic bag.
- a fluid for inflating the rubber balloon 156 for example, a gas such as air or a liquid such as water can be used.
- the shape of the pressure port 256 is preferably point-symmetric with respect to the rotation axis in order to pressurize the mold roll 15 uniformly.
- a plurality of pressurizing openings 256 be arranged in the vicinity of the rotation axis or point-symmetrically with respect to the rotation axis.
- the mold roll 15 and the pinch roll 16 are Even when the nanostructure is transferred with the substrate film 12 sandwiched therebetween, it is possible to prevent the resin on the substrate film 12 from being pressed with a uniform pressure and causing variations in the film thickness of the resin film 31.
- the film thickness of the resin film 31 produced in this embodiment was measured, it was 10 ⁇ 0.7 ⁇ m, and the film thickness was excellent.
- the prepared resin film 31 is pasted with glue (refractive index 1.50) on a black acrylic plate (refractive index 1.49) having a smooth surface, and this is illuminated under a white light source to change the observation angle.
- glue reffractive index 1.50
- a black acrylic plate reffractive index 1.409 having a smooth surface
- Such a resin film 31 is suitably attached as an antireflection film to a surface used for display of a screen of a display device, a show window, etc., or a surface decorated with a building material or the like.
- the display device include a liquid crystal display device, an organic electroluminescence display device, and a plasma display device.
- the mold roll 15 can be easily fixed by injecting fluid, and the mold roll 15 can be easily released by discharging the fluid. be able to.
- a rubber plate 251 that is an elastic body may be attached to the outer peripheral surface of the body portion 151 a of the fixed roll 151 except for the opening.
- the rubber plate 251 has a role of a stopper (buffer material) that prevents contact between the fixed roll 151 and the mold roll 15.
- a stopper buffer material
- the thickness of the rubber plate 251 is, for example, 0.5 mm.
- the rubber plate 251 is disposed on the outer peripheral surface of the body portion 151 a of the fixed roll 151, but is exposed from the inner peripheral surface of the mold roll 15 or the outer peripheral surface of the body portion 151 a of the fixed roll 151.
- the rubber balloon 156 may be disposed on the surface.
- the elastic body is not particularly limited as long as it can relieve the impact, and for example, a spring may be used instead of the rubber plate 251.
- the linear protrusion structure 151 c is formed on the outer peripheral surface of the body portion of the fixed roll 151, and the linear protrusion structure 151 c is attached to the inner peripheral surface of the mold roll 15 when the fixed roll 151 is mounted.
- the linear groove structure 15c may be formed at a corresponding position.
- the linear protrusion structure 151c is provided with a height enough to fit the linear groove structure 15c with a gap in a state where the mold roll 15 is attached around the fixed roll 151. Then, when the mold roll 15 is mounted on the fixed roll 151, the linear protrusion structure 151c and the linear groove structure 15c are loosely fitted, thereby positioning the mold roll 15 roughly with respect to the fixed roll 151. Can do.
- the mold roll 15 can be held with high accuracy with respect to the fixed roll 151. Therefore, for example, when the large-area resin film 31 is produced using the large mold roll 15 having a length in the rotation axis direction of 1 meter or more, the mold roll 15 can be easily attached and detached.
- linear protrusion structures 151c are provided on the outer peripheral surface of the body portion of the fixed roll 151.
- the inner peripheral surface of the mold roll 15 is provided.
- four linear groove structures 15c are provided, the number of fitting structures formed by a combination of the linear protrusion structures 151c and the linear groove structures 15c is not particularly limited.
- linear protrusion structures 151 c and linear groove structures 15 c extending in the rotation axis direction of the respective rolls 15 and 151 are provided only at the end portions.
- a linear protrusion structure and a linear groove structure extending from one end to the other end of each roll 15, 151 may be provided.
- the fitting structure of the pattern extended in the circumferential direction of a roll it is possible to prevent the deviation
- the fitting structure may have a linear groove structure on the outer peripheral surface of the fixed roll 151 and a linear protrusion structure on the inner peripheral surface of the mold roll 15. Furthermore, instead of a fitting structure formed by a combination of a pair of linear protrusion structures and a linear groove structure, a fitting structure in which three or more linear protrusion structures are engaged may be used.
- the fixed roll 151 has two parallel linear protrusion structures on the outer peripheral surface
- the inner peripheral surface of the mold roll 15 has one linear protrusion structure
- a bearing 151 d may be attached to the shaft portion of the fixed roll 151.
- the die roll 15 When the die roll 15 is displaced from the position set by impact or the like by attaching the bearing 151d, the die roll 15 that is normally forcedly rotated by the power of the nanoimprint apparatus is in a free state (fixed) The state can be switched to a state in which no power is supplied via the roll 151), and the device can be adjusted to return to the set position more quickly.
- FIG. 11 is a schematic cross-sectional view showing a state (at the time of attachment / detachment) in which a fixed roll is inserted into a cylinder of a mold roll in the second embodiment.
- FIG. 12 is a schematic cross-sectional view showing a state (at the time of fixing) in which a fixed roll is inserted into a cylinder of a mold roll in the second embodiment.
- the roller-type nanoimprint apparatus of Embodiment 2 has the same structure as the roller-type nanoimprint apparatus of Embodiment 1 except for a fixed roll.
- the fixed roll 152 covers the opening formed in the hollow body portion 152a with a rubber plate (rubber sheet) 157 so that the entire inside of the body portion 152a of the fixed roll 152 is a container for receiving a press-fit fluid. It is said. That is, in this embodiment, the fixed roll 152 is a hollow roll, and the rubber plate 157 is an elastic film. According to this embodiment, since the fixed roll 152 itself is used as a container for pressurization, the pressurizing port 257 can be directly formed on the fixed roll and directly connected to the fluid injection portion in the roller type nanoimprint apparatus. As a result, the strength of the fluid passage itself and the connection portion can be increased. Below, the detailed structure of the fixed roll which concerns on this embodiment is demonstrated.
- the fixed roll 152 of the present embodiment includes a hollow body portion 152a and shaft portions 152b extending from both end faces thereof.
- the trunk portion 152a is cylindrical, and both ends of the cylinder are constituted by wall surfaces.
- a plurality of openings are formed in parallel to the rotation axis direction of the fixed roll 152, that is, the extending direction of the shaft portion 152b.
- the opening formed in the body portion 152a is covered with the rubber plate 157.
- the opening formed in the fixed roll 152 is preferably provided in parallel to the rotation axis direction of the fixed roll 152 so that the resin is easily pressurized with an equal pressure.
- the plurality of openings are formed with an equal size and are arranged at equal intervals.
- the outer diameter of the trunk portion 152a is 246 mm, and the length of the trunk portion 152a is 400 mm.
- the shaft portion 152b is inserted into a shaft mounting portion in the nanoimprint apparatus. Due to the power supplied through the shaft mounting portion, the fixed roll 152 can rotate about the extending direction of the shaft portion 152b as a rotation axis.
- a rubber plate 157 covering the opening of the body portion 152 a is for fixing the mold roll 15.
- the cylindrical mold roll 15 is attached around the body portion 152 a of the fixed roll 152 by inserting the fixed roll 152 into the cylinder.
- a fluid is injected into the mold roll 15 through the pressure port 257, and the rubber covering the opening formed in the body portion 152a of the fixed roll 152 as shown in FIG.
- the plate 257 is expanded until it is pressed against the inner peripheral surface of the mold roll 15.
- a gas such as air or a liquid such as water can be used.
- the mold roll 15 of the present embodiment since uniform fluid pressure is applied to the inner peripheral surface of the mold roll 15 via the rubber plate 157, the mold roll 15 and the pinch roll 16 Even when the nanostructure is transferred with the substrate film 12 sandwiched therebetween, it is possible to prevent the resin on the substrate film 12 from being pressed with a uniform pressure and causing variations in the film thickness of the resin film 31.
- the film thickness of the resin film 31 produced in this embodiment was measured, it was 10 ⁇ 0.2 ⁇ m, and the film thickness uniformity was excellent. Further, as in the case of the first embodiment, the unevenness of the film thickness of the resin film 31 and the unevenness of the display quality associated therewith were not confirmed.
- the mold roll 15 can be easily fixed by injecting fluid, and the mold roll 15 can be easily released by discharging the fluid. be able to.
- the rubber plate 157 is attached to the inner peripheral surface side of the fixed roll 152.
- This form is more advantageous in terms of bonding strength than the form attached to the outer peripheral surface side of the fixed roll 152.
- a rubber plate may be attached to the outer peripheral surface of the body portion 152a of the fixed roll 152.
- a rubber plate as a stopper (cushioning material) for preventing contact between the roll 152 and the mold roll 15 and a rubber plate 157 provided for holding the mold roll 15 may be integrated.
- FIG. 13 is a schematic perspective view illustrating the structure of a fixed roll according to the third embodiment.
- the fixed roll 153 according to the present embodiment a plurality of circular openings of the same size are formed at equal intervals in the body portion.
- a rubber balloon may be disposed in the fixed roll 153 as in the first embodiment as the elastic film 258, and a rubber plate is disposed so as to cover the opening of the fixed roll 153 as in the second embodiment. May be.
- the fixed roll of the present embodiment can be used in place of the fixed roll of the first embodiment in the roller nanoimprint apparatus of the first embodiment.
- FIG. 14 is a schematic perspective view illustrating the structure of the fixed roll according to the fourth embodiment
- FIG. 15 is a schematic cross-sectional view illustrating a state in which a rubber tube is wound around the fixed roll according to the fourth embodiment
- the fixed roll 154 according to the present embodiment has a structure in which a pair of discs 154a are attached to the rotating shaft 154b with a space therebetween. And it inserts in the cylindrical metal mold
- the fixed roll of the present embodiment can be used in place of the fixed roll of the first embodiment in the roller nanoimprint apparatus of the first embodiment.
- a rubber plate that is an elastic body may be attached to the outer peripheral surface of the disk 154 a of the fixed roll 154.
- the rubber plate has a role of a stopper (buffer material) that prevents contact between the fixed roll 154 and the mold roll 15.
- a stopper buffer material
- the thickness of the rubber plate is, for example, 0.5 mm.
- the rubber plate may be disposed on the inner peripheral surface of the mold roll 15.
- the elastic body is not particularly limited as long as it can relieve the impact, and for example, a spring may be used instead of the rubber plate.
- FIG. 16 is an explanatory diagram illustrating the overall configuration of the roller nanoimprint apparatus according to the fifth embodiment.
- three pinch rolls 26, 27, and 28 are rotationally symmetrical with respect to the rotation center of the mold roll 25 (at intervals of 120 °) around the mold roll 25 without providing a fixed roll.
- the die roll 25 is held only by the pinch rolls 26, 27 and 28.
- the mold roll 25 is rotated by the rotation of the pinch rolls 26, 27, and 28, and the base film 12 is moved.
- the first and third pinch rolls 26 and 27 are also provided in the roller-type nanoimprint apparatus according to the first embodiment.
- the first pinch roll 26 is for transferring the nanostructure to the resin on the base film 12.
- the third pinch roll 27 is for peeling the mold roll 15 and the resin on the base film 12.
- the second pinch roll 28 is for stabilizing the arrangement of the mold roll 25.
- the first, second, and third pinch rolls 26, 27, and 28 press the mold roll 25 uniformly.
- the pressure cylinders of the pinch rolls 26, 27, and 28 have the same structure and are pressurized with the same fluid pressure (in the same system).
- the irradiation of ultraviolet rays is performed by the first pinch roll 26 and the second pinch roll. It is performed in two steps between the roll 28 and between the second pinch roll 28 and the third pinch roll 27.
- the white arrow in FIG. 16 has shown the irradiation direction of the ultraviolet-ray.
- the number of pinch rolls may be four or more as long as the mold rolls 25 are arranged rotationally symmetrical so as not to be eccentric.
- the mold roll 25 receives an upward force from the base film 12, and thus travels stably. I can't.
- the mold roll when pressing a mold roll with three or more pinch rolls, the mold roll can be held without using a fixed roll.
- a fixed roll When a fixed roll is not used in this way, it is preferable to provide a side slip prevention mechanism so that the mold roll does not shake in the direction of the rotation axis when transferring the nanostructure.
- a stopper 181 as shown in FIG. May be provided.
- the mold roll 25 can be rotated by rotating the pinch rolls 26, 27, and 28, so that it is necessary to transmit rotational power from the fixed roll to the mold roll 25. Absent. Therefore, it is preferable that a bearing is attached to the fixed roll, and the fixed roll is attached to the roller-type nanoimprint apparatus via the bearing.
- the roller-type nanoimprint apparatus includes: For example, it may be composed of only a mechanism unit that holds and rotates a mold roll such as a fixed roll or a rubber balloon, and a mechanism unit that performs mold pressing such as a pinch roll or a mold roll.
- the roller-type nanoimprint apparatus of Comparative Example 1 has the same structure as the roller-type nanoimprint apparatus of Embodiment 1 except for a fixed roll.
- the same mold roll as that of Embodiment 1 is put on a metal roll, a spacer (wedge) is inserted into the space between the mold roll and the metal roll, and further, between the mold roll and the metal roll.
- the curable resin was cured to bond them together.
- a die roll was attached in the roller type nanoimprint apparatus, and the moth eye structure was produced similarly to the first embodiment.
- the film thickness distribution of the resin film was 12 ⁇ 1.8 ⁇ m.
- FIG. 2 is a schematic cross-sectional view showing a surface structure of a resin film produced in Embodiment 1.
- FIG. It is explanatory drawing which shows the change of the refractive index in the interface of the surface structure of the resin film shown by FIG. 2, and an air layer.
- (A) is a perspective schematic diagram which shows the structure of the metal mold
- (b) is a perspective schematic diagram which shows the structure of the fixed roll which concerns on Embodiment 1.
- Embodiment 1 it is a cross-sectional schematic diagram which shows the state (at the time of attachment or detachment) which inserted the fixed roll in the cylinder of the mold roll.
- Embodiment 1 it is a cross-sectional schematic diagram which shows the state (at the time of fixation) which inserted the fixed roll in the cylinder of a metal mold
- Embodiment 1 it is a cross-sectional schematic diagram which shows an example of the form by which the rubber plate was affixed on the outer peripheral surface of the trunk
- (A) is a perspective schematic diagram which shows an example of the fixed roll in which the linear protrusion structure was formed in the outer peripheral surface of a fuselage
- (b) is the metal mold
- it is a cross-sectional schematic diagram which shows the state (at the time of attachment or detachment) which inserted the fixed roll in the cylinder of the metal mold
- Embodiment 2 it is a cross-sectional schematic diagram which shows the state (at the time of fixation) which inserted the fixed roll in the cylinder of the mold roll. It is a perspective schematic diagram which shows the structure of the fixed roll which concerns on Embodiment 3. FIG. It is a perspective schematic diagram which shows the structure of the fixed roll which concerns on Embodiment 4. FIG. It is a cross-sectional schematic diagram which shows the state which wound the rubber tube around the fixed roll which concerns on Embodiment 4. FIG. It is explanatory drawing which shows the whole structure of the roller type nanoimprint apparatus which concerns on Embodiment 5.
- Embodiment 5 it is a perspective exploded view which shows typically an example of the form which has arrange
- Base film roll 12 Base film 13a, 13b, 16, 17, 20, 26, 27, 28 Pinch roll 14 Die coater 15, 25 Mold roll 15c Linear groove structure 18 Lamination film roll 19 Lamination film 21 Laminated film Roll 31 Resin film 32 Protrusion 51 Large mold roll 52 Small mold roll 151, 152, 153, 154 Fixed roll 151a, 152a Body part 151b, 152b Shaft part 151c Linear protrusion structure 151d Bearing 154a Disk 154b Rotating shaft 156 Rubber balloons 157 and 251 Rubber plate 181 Stopper 256 and 257 Pressure port 258 Elastic membrane 259 Rubber tube
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Abstract
Description
図1は、実施形態1に係るローラー型ナノインプリント装置の全体構成を示す説明図である。
本実施形態のローラー型ナノインプリント装置においては、まず、基材フィルムロール11を回転させつつ、基材フィルムロール11からベルト状の基材フィルム12が、図1中の矢印が指す方向に送り出される。次に、基材フィルム12は、テンションを調節する一対のピンチロール13a,13bを通った後、ダイコーター14により未硬化の樹脂が塗布される。続いて、基材フィルム12は、円筒状の金型ロール15の外周面に沿って半周分移動する。このとき、基材フィルム12に塗布された樹脂が金型ロール15の外周面と接する。
固定ロール151は、ゴムバルーン156が封入される中空の胴体部151aと、その両端面から伸びる軸部151bとから構成される。胴体部151aは、円筒状であり、筒の両端は壁面で構成されている。また、胴体部151aには、固定ロール151の回転軸方向、すなわち軸部151bの延伸方向に対して平行に形成された複数の開口が形成されている。胴体部151aの開口は、樹脂が均等な圧力で加圧されやすいように、固定ロール151の回転軸方向に対して平行に設けられることが好ましい。また、同様の理由で、複数の開口は、均等な大きさで形成され、均等な間隔で配置されることが好ましい。更に、ゴムバルーン156が傷つくことを防止するために、胴体部151aの開口形状は角張っていないことが好ましい。胴体部151aの外径は246mmであり、胴体部151aの長さは400mmである。軸部151bは、ナノインプリント装置内の軸取り付け部に挿入される。軸取り付け部を通じて供給される動力により、固定ロール151は、軸部151bの延伸方向を回転軸として回転可能である。
図11は、実施形態2において、金型ロールの筒内に固定ロールを挿入した状態(着脱時)を示す断面模式図である。図12は、実施形態2において、金型ロールの筒内に固定ロールを挿入した状態(固定時)を示す断面模式図である。
実施形態2のローラー型ナノインプリント装置は、固定ロールを除いて、実施形態1のローラー型ナノインプリント装置と同様の構造を有する。本実施形態に係る固定ロール152は、中空の胴体部152aに形成された開口をゴム板(ゴム製のシート)157で覆うことにより、固定ロール152の胴体部152a内全体を圧入流体の受け入れ容器としている。すなわち、本実施形態において、固定ロール152は中空ロールであり、ゴム板157は弾性膜である。この形態によれば、固定ロール152自体を加圧用の容器として用いることから、加圧口257を固定ロールに直接形成してローラー型ナノインプリント装置内の流体注入部に直結することができる。その結果、流体の通路自体及び接続部の強度を高めることができる。以下に本実施形態に係る固定ロールの詳細な構造を説明する。
図13は、実施形態3に係る固定ロールの構造を示す斜視模式図である。
本実施形態に係る固定ロール153は、胴体部に、均等な間隔で、同じ大きさの円形の開口が複数形成されている。この形態においては、弾性膜258として、実施形態1のように固定ロール153内にゴムバルーンを配置してもよく、実施形態2のように、固定ロール153の開口を覆うようにゴム板を配置してもよい。本実施形態の固定ロールは、実施形態1のローラー型ナノインプリント装置において、実施形態1の固定ロールの代わりに用いることができる。
図14は、実施形態4に係る固定ロールの構造を示す斜視模式図であり、図15は、実施形態4に係る固定ロールにゴムチューブを巻き付けた状態を示す断面模式図である。
本実施形態に係る固定ロール154は、回転軸154bに、間隔を空けて一対の円板154aが取り付けられた構造を有している。そして、この円板154a間の回転軸154bにゴムチューブ259を巻き付けた状態で円筒状の金型ロール15に挿入される。本形態においても、ゴムチューブ259を膨張させることにより金型ロール15を内側から保持することができ、ゴムチューブ259を収縮させることにより金型ロール15の着脱が可能である。すなわち、本実施形態において、固定ロール154は回転体であり、ゴムチューブ259は弾性袋である。本実施形態の固定ロールは、実施形態1のローラー型ナノインプリント装置において、実施形態1の固定ロールの代わりに用いることができる。
図16は、実施形態5に係るローラー型ナノインプリント装置の全体構成を示す説明図である。
本実施形態においては、固定ロールを設けずに、金型ロール25の周囲に3本のピンチロール26,27,28を金型ロール25の回転中心に対して回転対称に(120°間隔で)設けることによりピンチロール26,27,28のみで金型ロール25を保持している。そして、ピンチロール26,27,28の回転により、金型ロール25を回転させ、基材フィルム12を移動させる。
比較例1のローラー型ナノインプリント装置は、固定ロールを除いて、実施形態1のローラー型ナノインプリント装置と同様の構造を有する。本比較例においては、実施形態1と同じ金型ロールを金属ロールに被せ、該金型ロールと金属ロールとの間の空間にスペーサー(楔)を差し込み、更に金型ロールと金属ロールとの間に硬化性樹脂を注入後、該硬化性樹脂を硬化させることにより両者を接着した。そして、金型ロールをローラー型ナノインプリント装置内に取り付け、実施形態1と同様に、モスアイ構造を作製した。その結果、樹脂膜の膜厚分布は、12±1.8μmであった。また、表面が平滑な黒いアクリル板(屈折率1.49)の上に、作製した樹脂膜を糊(屈折率1.50)で貼り付け、これを白色光源下に照らして、観察角度を変化させながら目視により観察した結果、膜厚差に起因する干渉色が観察された。
12 基材フィルム
13a,13b,16,17,20,26,27,28 ピンチロール
14 ダイコーター
15,25 金型ロール
15c 線状溝構造
18 ラミネーションフィルムロール
19 ラミネーションフィルム
21 積層フィルムロール
31 樹脂膜
32 突起
51 大型の金型ロール
52 小型の金型ロール
151,152,153,154 固定ロール
151a,152a 胴体部
151b,152b 軸部
151c 線状突起構造
151d ベアリング
154a 円板
154b 回転軸
156 ゴムバルーン
157,251 ゴム板
181 ストッパー
256,257 加圧口
258 弾性膜
259 ゴムチューブ
Claims (17)
- 金型ロールを回転させることで被転写膜の表面にナノメートルサイズの突起を連続的に形成するローラー型ナノインプリント装置であって、
該金型ロールは、外周面にナノメートルサイズの窪みが形成された円筒体であり、
該ナノインプリント装置は、該金型ロールの内周面に囲まれた領域に、流体の注入により膨張可能な弾性膜を備える流体容器を有し、
該弾性膜を収縮させた状態で金型ロールの着脱を行い、該弾性膜を膨張させた状態で金型ロールを内側から保持する
ことを特徴とするローラー型ナノインプリント装置。 - 前記ナノインプリント装置は、該装置に取り付け可能であり、かつ開口が形成された中空の中空ロールを有し、
前記弾性膜は、袋状であり、
前記流体容器は、該袋状の弾性膜からなる弾性袋であり、
該ナノインプリント装置は、該金型ロールの内周面に囲まれた領域に、該中空ロールが配置され、該中空ロール内に弾性袋が配置されており、
該弾性袋を膨張させて中空ロールの開口から露出させた部分を金型ロールの内周面に接触させることにより金型ロールを保持し、金型ロールを保持した状態で中空ロールを回転させることにより金型ロールを回転させる
ことを特徴とする請求項1記載のローラー型ナノインプリント装置。 - 前記流体容器は、前記ナノインプリント装置に取り付け可能であり、かつ開口が形成された中空ロールの該開口を前記弾性膜により塞いだものであり、
前記ナノインプリント装置は、弾性膜を膨張させて金型ロールの内周面に接触させることにより金型ロールを保持し、金型ロールを保持した状態で中空ロールを回転させることにより金型ロールを回転させる
ことを特徴とする請求項1記載のローラー型ナノインプリント装置。 - 前記中空ロールは、開口が形成された部分を除いて、金型ロールの内周面と対向する面上に弾性体が設けられていることを特徴とする請求項2又は3記載のローラー型ナノインプリント装置。
- 前記ナノインプリント装置は、該装置に取り付け可能であり、かつ金型ロールの内周面に囲まれた領域に配置された回転体を有し、
前記弾性膜は、袋状であり、
前記流体容器は、該袋状の弾性膜からなる弾性袋であり、かつ該回転体の周囲に取り付けられ、該ナノインプリント装置は、該弾性袋を膨張させて金型ロールの内周面に接触させることにより金型ロールを保持し、金型ロールを保持した状態で回転体を回転させることにより金型ロールを回転させる
ことを特徴とする請求項1記載のローラー型ナノインプリント装置。 - 前記回転体は、外周面の前記弾性袋が取り付けられていない領域上に弾性体が設けられていることを特徴とする請求項5記載のローラー型ナノインプリント装置。
- 前記金型ロールは、実質的に継ぎ目が形成されていないことを特徴とする請求項1~6のいずれかに記載のローラー型ナノインプリント装置。
- 前記金型ロールは、研磨されたアルミニウム管の外周面に、陽極酸化法により前記ナノメートルサイズの窪みを形成したものであることを特徴とする請求項1~7のいずれかに記載のローラー型ナノインプリント装置。
- 回転しながら被転写膜への型押しを行うことにより、ナノメートルサイズの突起を被転写膜の表面に連続的に形成するためのローラー型ナノインプリント装置用金型ロールであって、
該金型ロールは、外周面にナノメートルサイズの窪みが形成された円筒体であり、かつ金型ロールの内周面に囲まれた領域に配置される部材との位置決めに用いられる位置あわせ機構を有することを特徴とするローラー型ナノインプリント装置用金型ロール。 - 回転しながら被転写膜への型押しを行うことにより、ナノメートルサイズの突起を被転写膜の表面に連続的に形成するためのローラー型ナノインプリント装置用金型ロールであって、
該金型ロールは、押出加工により形成された円筒状のアルミニウム管の外周面を切削研磨し、更にエッチングと陽極酸化とを交互に繰り返すことにより、該外周面に円錐形の窪みを光の波長よりも小さな深さで形成したものであることを特徴とするローラー型ナノインプリント装置用金型ロール。 - ナノメートルサイズの窪みが外周面に形成された円筒状の金型ロールを回転させることでナノメートルサイズの突起を被転写膜の表面に連続的に形成するローラー型ナノインプリント装置用の固定ロールであって、
該固定ロールは、該金型ロールの内周面に囲まれた領域に配置されるものであり、
流体の注入により膨張可能な弾性膜が取り付けられ、
該弾性膜を収縮させた状態で金型ロールが着脱され、該弾性膜が膨張して金型ロールを内側から保持した状態で固定ロールが回転することにより金型ロールを回転させるものであり、かつ
金型ロールとの位置決めに用いられる位置あわせ機構を有する
ことを特徴とするローラー型ナノインプリント装置用固定ロール。 - ナノメートルサイズの窪みが外周面に形成された円筒状の金型ロールを回転させることでナノメートルサイズの突起を被転写膜の表面に連続的に形成するローラー型ナノインプリント装置用の固定ロールであって、
該固定ロールは、該金型ロールの内周面に囲まれた領域に配置されるものであり、
流体の注入により膨張可能な弾性膜が取り付けられ、
該弾性膜を収縮させた状態で金型ロールが着脱され、該弾性膜が膨張して金型ロールを内側から保持した状態で固定ロールが回転することにより金型ロールを回転させるものであり、かつ
ベアリングが設けられたものである
ことを特徴とするローラー型ナノインプリント装置用固定ロール。 - ナノメートルサイズの突起が表面に形成されたナノインプリントシートの製造方法であって、
該製造方法は、外周面にナノメートルサイズの窪みが形成された円筒状の金型ロールと、該金型ロールの内周面に囲まれた領域に設けられ、かつ流体の注入により膨張可能な弾性膜を備える流体容器とを用いるものであり、
該弾性膜を収縮させた状態で金型ロールの着脱を行い、該弾性膜を膨張させた状態で金型ロールを内側から保持し、かつ
金型ロールを回転させながら被転写膜への型押しを連続的に行う
ことを特徴とするナノインプリントシートの製造方法。 - 金型ロールを回転させることで被転写膜の表面にナノメートルサイズの突起を連続的に形成するローラー型ナノインプリント装置であって、
該金型ロールは、外周面にナノメートルサイズの窪みが形成された円筒体であり、
該ナノインプリント装置は、該金型ロールの回転中心に対して実質的に回転対称に配置された少なくとも3つのピンチロールにより、金型ロールを保持しつつ回転させる
ことを特徴とするローラー型ナノインプリント装置。 - 前記金型ロールは、実質的に継ぎ目が形成されていないことを特徴とする請求項14記載のローラー型ナノインプリント装置。
- 前記金型ロールは、研磨されたアルミニウム管の外周面に、陽極酸化法により前記ナノメートルサイズの窪みを形成したものであることを特徴とする請求項14記載のローラー型ナノインプリント装置。
- ナノメートルサイズの突起が表面に形成されたナノインプリントシートの製造方法であって、
該製造方法は、外周面にナノメートルサイズの窪みが形成された円筒状の金型ロールと、該金型ロールの回転中心に対して実質的に回転対称に配置された少なくとも3つのピンチロールとを用いるものであり、
該金型ロールは、該少なくとも3つのピンチロールにより保持され、
該金型ロール及び該少なくとも3つのピンチロールを回転させながら被転写膜への型押しを連続的に行う
ことを特徴とするナノインプリントシートの製造方法。
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US12/734,381 US8673193B2 (en) | 2008-02-27 | 2008-11-19 | Roller nanoimprint apparatus, mold roller for use in roller nanoimprint apparatus, fixing roller for use in roller nanoimprint apparatus, and production method of nanoimprint sheet |
BRPI0822215-0A BRPI0822215A2 (pt) | 2008-02-27 | 2008-11-19 | Aparelho de nanolitografia de rolo, rolo de molde para utilização em aparelho de nanolitografia de rolo, rolo de fixação para utilização em aparelho de nanolitografia de rolo, e método de produção de folha de nanolitografia |
CN200880122606.5A CN101909859B (zh) | 2008-02-27 | 2008-11-19 | 辊型纳米压印装置、辊型纳米压印装置用模具辊、辊型纳米压印装置用固定辊以及纳米压印片的制造方法 |
EP08872863.9A EP2246177B1 (en) | 2008-02-27 | 2008-11-19 | Roller type nano-imprint device, mold roll for the roller type nano-imprint device, fixed roll for the roller type nano-imprint device, and nano-imprint sheet manufacturing method |
JP2010500533A JP4875203B2 (ja) | 2008-02-27 | 2008-11-19 | ローラー型ナノインプリント装置及びナノインプリントシートの製造方法 |
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EP (2) | EP2348359B1 (ja) |
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USRE43694E1 (en) | 2000-04-28 | 2012-10-02 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
USRE46606E1 (en) | 2000-04-28 | 2017-11-14 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
USRE44830E1 (en) | 2000-04-28 | 2014-04-08 | Sharp Kabushiki Kaisha | Stamping tool, casting mold and methods for structuring a surface of a work piece |
US8597767B2 (en) | 2008-03-04 | 2013-12-03 | Sharp Kabushiki Kaisha | Optical element, roller type nanoimprinting apparatus, and process for producing die roll |
CN102687239A (zh) * | 2009-10-28 | 2012-09-19 | 韩国机械研究院 | 辊印装置 |
US8950324B2 (en) | 2009-12-22 | 2015-02-10 | 3M Innovative Properties Company | Apparatus and method for microcontact printing using a pressurized roller |
JP2013515378A (ja) * | 2009-12-22 | 2013-05-02 | スリーエム イノベイティブ プロパティズ カンパニー | 加圧ローラーを使用するマイクロコンタクトプリンティングのための装置及び方法 |
TWI465758B (zh) * | 2010-02-24 | 2014-12-21 | Sharp Kk | 模具及模具之製造方法與抗反射膜之製造方法 |
WO2011105206A1 (ja) * | 2010-02-24 | 2011-09-01 | シャープ株式会社 | 型および型の製造方法ならびに反射防止膜の製造方法 |
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US9193096B2 (en) | 2010-02-24 | 2015-11-24 | Sharp Kabushiki Kaisha | Die, die production method, and production of antireflection film |
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JP5616969B2 (ja) * | 2010-08-30 | 2014-10-29 | シャープ株式会社 | 型の製造方法および反射防止材の製造方法 |
US8999133B2 (en) | 2010-08-30 | 2015-04-07 | Sharp Kabushiki Kaisha | Method for forming anodized layer and mold production method |
WO2015022916A1 (ja) * | 2013-08-14 | 2015-02-19 | 三菱レイヨン株式会社 | ナノインプリント用モールドの製造方法、および反射防止物品 |
US9457493B2 (en) | 2013-08-14 | 2016-10-04 | Mitsubishi Rayon Co., Ltd. | Method for producing cylindrical nanoimprinting mold and method for producing nanoimprinting reproduction mold |
JPWO2015022935A1 (ja) * | 2013-08-14 | 2017-03-02 | 三菱レイヨン株式会社 | 円柱状ナノインプリント用モールドの製造方法、およびナノインプリント用再生モールドの製造方法 |
WO2015022935A1 (ja) * | 2013-08-14 | 2015-02-19 | 三菱レイヨン株式会社 | 円柱状ナノインプリント用モールドの製造方法、およびナノインプリント用再生モールドの製造方法 |
US9890466B2 (en) | 2013-08-14 | 2018-02-13 | Mitsubishi Chemical Corporation | Method for producing mold for nanoimprinting and anti-reflective article |
KR101879797B1 (ko) * | 2013-08-14 | 2018-07-18 | 미쯔비시 케미컬 주식회사 | 원기둥형상 나노임프린트용 몰드의 제조방법 및 나노임프린트용 재생 몰드의 제조방법 |
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Also Published As
Publication number | Publication date |
---|---|
US8673193B2 (en) | 2014-03-18 |
US20100258978A1 (en) | 2010-10-14 |
EP2246177A1 (en) | 2010-11-03 |
BRPI0822215A2 (pt) | 2015-06-23 |
EP2348359B1 (en) | 2013-04-24 |
CN101909859B (zh) | 2015-02-04 |
JP4875203B2 (ja) | 2012-02-15 |
JPWO2009107294A1 (ja) | 2011-06-30 |
JP4521479B1 (ja) | 2010-08-11 |
US20100272845A1 (en) | 2010-10-28 |
EP2246177B1 (en) | 2018-06-06 |
US7938640B2 (en) | 2011-05-10 |
EP2246177A4 (en) | 2012-02-29 |
EP2348359A1 (en) | 2011-07-27 |
JP2010188731A (ja) | 2010-09-02 |
CN101909859A (zh) | 2010-12-08 |
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