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Process for producing microconfiguration transfer sheet and apparatus therefor

A manufacturing method and a manufacturing device technology, which are applied in the field of manufacturing and manufacturing devices for micro-shape transfer sheets, can solve the problems of time-consuming, pressure deviation on the forming surface, and different surface pressure distribution, and achieve the effect of uniform pressure

Active Publication Date: 2009-09-02
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, since this method bends the pressing plate with springs of different elasticity, even if it is flattened by pressing with a press, the surface pressure of the forming surface will vary due to the high pressure of the protruding part, etc. This will lead to differences in transfer accuracy of fine shapes within the forming surface, and as a result, uniform transfer accuracy cannot be obtained.
In particular, the finer the surface shape, the more prominent the problem, and the thickness of the processed sheet obtained due to the difference in surface pressure distribution is also unsatisfactory.
Furthermore, when it is desired to change the amount of deformation, it takes time to change the position of the spring member and its support holder every time, so it is not practical.

Method used

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  • Process for producing microconfiguration transfer sheet and apparatus therefor
  • Process for producing microconfiguration transfer sheet and apparatus therefor
  • Process for producing microconfiguration transfer sheet and apparatus therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] (1) Die size: 500mm (film width direction) x 800mm (film moving direction) x 20mm (thickness).

[0107] (2) Mold material: copper.

[0108] (3) Fine shape: a pitch of 50 μm, a convex portion width of 25 μm, a convex portion height of 50 μm, and a rectangular cross-sectional shape viewed from the film moving direction.

[0109] (4) Pressurization device: the maximum pressurization pressure can reach 3000kN, pressurization is carried out by hydraulic pump.

[0110] (5) Two upper and lower temperature regulating plates made of aluminum alloy with a size of 700 mm (film width direction)×1000 mm (film moving direction) are installed in the pressurizing device, and each is connected to a heating device and a cooling device. The mold is installed on the temperature regulating plate on the lower side. The heating device was a heat medium circulation device, and the heat medium was Baresam #400 (manufactured by Matsumura Petroleum Co., Ltd.), and the heat medium heated to 150°...

Embodiment 2

[0120] (1) Die size: 500mm (film width direction) x 800mm (film moving direction) x 20mm (thickness).

[0121] (2) Mold material: copper.

[0122] (3) Fine shape: a pitch of 50 μm, a convex portion width of 25 μm, a convex portion height of 50 μm, and a rectangular cross-sectional shape viewed from the film moving direction.

[0123] (4) Pressurization device: the maximum pressurization pressure can reach 3000kN, pressurization is carried out by hydraulic pump.

[0124] (5) Two upper and lower temperature regulating plates made of aluminum alloy with a size of 700 mm (film width direction)×1000 mm (film moving direction) are installed in the pressurizing device, and each is connected to a heating device and a cooling device. The mold is installed on the temperature regulating plate on the lower side. The heating device was a heat medium circulation device, and the heat medium was Baresam #400 (manufactured by Matsumura Petroleum Co., Ltd.), and the heat medium heated to 150°...

Embodiment 3

[0131] (1) Die size: 500mm (film width direction) x 800mm (film moving direction) x 40mm (thickness).

[0132] (2) Mold material: copper.

[0133] (3) Fine shape: a pitch of 50 μm, a convex portion width of 25 μm, a convex portion height of 50 μm, and a rectangular cross-sectional shape viewed from the film moving direction.

[0134] (4) Pressurization device: the maximum pressurization pressure can reach 3000kN, pressurization is carried out by hydraulic pump.

[0135] (5) Two upper and lower temperature regulating plates made of aluminum alloy with a size of 700 mm (film width direction)×1000 mm (film moving direction) are installed in the pressurizing device, and each is connected to a heating device and a cooling device. The mold is installed on the temperature regulating plate on the lower side. The heating device was a heat medium circulation device, and the heat medium was Baresam #400 (manufactured by Matsumura Petroleum Co., Ltd.), and the heat medium heated to 150°...

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Abstract

A process for producing a sheet and apparatus therefor that in the operation of heating a sheet substratum and a metal mold with fine uneven configuration, bringing them into mutual contact and pressurizing the same so as to form the fine uneven configuration on a surface of the sheet substratum, avoid transfer failure attributed to air trapping at the transfer face between the metal mold and the sheet substratum to thereby obtain a sheet having the desired fine uneven configuration formed on its surface. There are provided a process for producing a microconfiguration transfer sheet, and apparatus therefor, comprising, in the microconfiguration transfer sheet producing operation including heating a sheet substratum and a metal mold with fine uneven configuration, bringing them into mutual contact and pressurizing the same so as to form the fine uneven configuration on a surface of the sheet substratum, carrying out the configuration formation while changing the planarity of a configuration forming face consisting of at least one, or a combination, of a pair of pressurization plates or metal molds arranged so as to apply pressure to the sheet substratum and the metal mold.

Description

technical field [0001] The present invention relates to a production method and a production apparatus of a sheet having the fine three-dimensional shape on the surface through transfer of the fine shape. Background technique [0002] As a method of forming a three-dimensional shape such as fine unevenness on the surface of a resin sheet or the like, a method in which the material such as a resin sheet is pressed with a heated mold having fine unevenness to transfer the three-dimensional shape of the unevenness to the resin sheet It is already known (Patent Documents 1 to 2). [0003] However, when using this method to transfer and form fine shapes on a large-area resin sheet, there is a problem that the transfer surface squeezes air between the mold and the sheet to be processed, so that the fine three-dimensional shapes cannot be completely transferred. , the transfer effect is poor. [0004] This problem of squeezing air in occurs when the thickness of the sheet-like ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C59/02B29C33/40B29C43/36
CPCB29C2059/023B29C33/08B29C43/021B29C43/003B29C2043/025B29C59/022B29K2105/256B29C43/00B29C43/36B29C33/40B29C59/02
Inventor 千木良宣嗣箕浦洁野村文保
Owner TORAY IND INC
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