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Method for producing flexible film

A manufacturing method and flexible thin film technology, applied in the direction of manufacturing tools, glass manufacturing equipment, chemical instruments and methods, etc., can solve the problems of inability to cut glass properly, decrease the smoothness of the cut-off surface, and poor smoothness of the cut-off surface, and achieve the purpose of suppressing The effect of thin glass breakage

Inactive Publication Date: 2015-11-18
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when cutting a glass substrate with a cutter, there is a problem that the smoothness of the cut surface is poor.
In addition, when a laser is used on a glass substrate having a resin layer, since processing temperatures suitable for resin and glass are different, it becomes difficult to set irradiation conditions suitable for both resin and glass.
Specifically, under the irradiation conditions under which the glass can be cut, the resin layer burns and the smoothness of the cut surface decreases, and under the irradiation conditions under which the resin layer does not burn, there is a problem that it cannot be properly applied. Problems such as broken glass and cracks

Method used

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  • Method for producing flexible film
  • Method for producing flexible film
  • Method for producing flexible film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] On PET film (manufactured by Toray Corporation, trade name "Lumil T60", thickness: 25 μm), an adhesive (epoxy resin-based adhesive manufactured by Teijin Chemical Industry Co., Ltd., 100 parts by weight of trade name A mixture of "CELLOXIDE2021P", 10 parts by weight of the product name "OXT221" manufactured by Toagosei Co., Ltd., 3 parts by weight of the product name "SP-170" manufactured by Adico Corporation, and 100 parts by weight of methyl ethyl ketone) This was dried to form an adhesive layer (thickness: 5 μm). A PET (resin layer) / adhesive layer film is attached to a thin glass (thickness: 30 μm) that has undergone coupling treatment on both sides with a coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd., product name "KBM-403"). On both sides, using UV light (1000mJ / cm 2 above) to cure the bonding layer.

[0070]Grooves were formed in the resin layers on both surfaces of the thus obtained laminate using NT cutter (registered trademark). The width of t...

Embodiment 2

[0073] A flexible film was obtained in the same manner as in Example 1 except that thin glass with a thickness of 50 μm was used instead of the thin glass with a thickness of 30 μm. The cut surface of the flexible film was smooth, and no cracks were generated on the thin glass.

Embodiment 3

[0075] A flexible film was obtained in the same manner as in Example 1 except that thin glass with a thickness of 100 μm was used instead of the thin glass with a thickness of 30 μm. The cut surface of the flexible film was smooth, and no cracks were generated on the thin glass.

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Abstract

Provided is a method for producing a flexible film (a diced laminate) that has a smooth torn surface and does not undergo the breakage of a thin glass contained therein by cutting a laminate comprising the thin glass and a resin layer. The method for producing a flexible film according to the present invention comprises cutting a laminate which comprises a thin glass having a thickness of 100 μm or less and a resin layer arranged on one surface or both surfaces of the thin glass. The method comprises the steps of: forming a groove on the outer surface side of the resin layer; and cutting the laminate along the groove.

Description

technical field [0001] The invention relates to a method for manufacturing a flexible film. In more detail, the present invention relates to a method of manufacturing a flexible film comprising thin glass. Background technique [0002] In recent years, light weight and thinner flat panel displays (FPD: such as liquid crystal display elements and organic EL display elements) have been advanced in view of the development of video communication technology. Conventionally, glass substrates have been used as substrates for display elements. The glass substrate is excellent in transparency, solvent resistance, gas barrier properties, and heat resistance. However, when the thickness of the glass material constituting the glass substrate is reduced, the flexibility increases while the weight is reduced, but the impact resistance becomes insufficient, and there arises a problem that handling becomes difficult. In order to improve the handling property of a thin glass substrate, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B33/02B32B17/10B32B37/00
CPCC03B33/074B23K26/364B23K26/40B23K2201/34B23K2203/172B28D1/22B32B17/064B32B38/0004B32B38/145B32B2037/1253B32B2038/168B32B2307/72B32B2309/02B32B2309/04B32B2309/10B32B2309/105B32B2310/0831B32B2310/0843B32B2367/00B32B2457/202B32B2457/206C03B33/082G02F1/133305B23K2103/54B23K2103/172Y10T156/1052B32B17/10
Inventor 村重毅服部大辅龟山忠幸
Owner NITTO DENKO CORP
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