Film roll and method for manufacturing same

A technology of film roll and roll state, which is applied in packaging, coating, diffusion elements, etc., and can solve the problems of dimensional changes and pattern dimensional accuracy reduction

Active Publication Date: 2019-09-13
KONICA MINOLTA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the pattern formed on the transparent substrate, local dimensional fluctuations occur, resulting in a decrease in the dimensional accuracy of the pattern.

Method used

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  • Film roll and method for manufacturing same
  • Film roll and method for manufacturing same
  • Film roll and method for manufacturing same

Examples

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Embodiment

[0254] Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples. It should be noted that when the marks of "part" or "%" are used in the examples, they mean "parts by mass" or "% by mass" unless otherwise specified.

[0255] [Additives used in base film]

[0256]

[0257] 251g of 1,2-propanediol, 244g of phthalic anhydride, 103g of adipic acid, 610g of benzoic acid, and tetratitanate as an esterification catalyst were fed into a 2L four-necked flask equipped with a thermometer, a stirrer, and a spherical condenser. 0.191 g of isopropyl ester was slowly heated up to 230°C while stirring in a nitrogen stream. The dehydration condensation reaction was performed while observing the degree of polymerization. After completion of the reaction, unreacted 1,2-propanediol was distilled off under reduced pressure at 200° C. to obtain polycondensation ester compound M. At this time, the ac...

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Abstract

A film roll (1) includes: a cellulose ester film (2) for anti-glare layer coating, the anti-glare layer including particles for forming surface unevenness; and a packaging material that is moisture-resistant and packages the cellulose ester film (2) in a rolled state. In the cellulose ester film (2), the ratio of the actual water content in the rolled state to the saturated water content is 55-85%, and the variation of the actual water content before anti-glare layer coating from the actual water content in the rolled state is in the range of -10% to+10%.

Description

technical field [0001] The present invention relates to a film roll having a cellulose ester film for coating an anti-glare layer, and a method for producing the film roll. Background technique [0002] Conventionally, various antiglare films have been proposed which are arranged on the outermost surface of a display device such as a liquid crystal display device (LCD) to prevent degradation of visibility due to reflection of external light. For example, in Patent Document 1, it is disclosed that a coating solution containing a binder matrix forming material and particles is applied to a transparent substrate such as a cellulose ester film and dried, and the particles are dispersed in the binder matrix forming material. In this way, an anti-glare film with a concave-convex structure is formed on the surface. In recent years, in order to improve the productivity of anti-glare films, high-speed coating production in which transparent substrates fed out from a roll are conveye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/02B65D85/672C08J5/18C08J7/04C08J7/046
CPCB65D85/672C08J5/18G02B5/02C08J7/046C08J7/04C08L1/10
Inventor 森藤亨最上尚行南条崇
Owner KONICA MINOLTA INC
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