Resin master plate for printing and manufacturing method thereof

Abstract

The invention relates to a resin original plate for printing and a method for manufacturing the same. The method for manufacturing the resin original plate for printing with the whole printing surface being roughened uniformly, which prevents the generation of various problems caused by conventional methods and has the advantages of high production efficiency and low cost, and the resin original plate for printing manufactured with the method are provided. The manufacture method comprises the step of exposing a layer (8) of a photosensitive resin (6) with active light in a state that the layer (8) is contacted with a die surface serving as a shaped surface of a roughened sheet (4) for curing the layer and stripping the layer from the die surface so that the surface, which is contacted with the die surface, of the layer serves as the roughened printing surface. The roughened sheet (4) can be fixed on a surface (2) of a support substrate (1) detachably and the surface on the side opposite to the support substrate side serves as the roughened shaped surface (4). The resin original plate for printing is manufactured with the method.

Description

technical field [0001] The present invention relates to a method for producing a resin original plate for printing used as a base of a printing plate, and a resin original plate for printing produced by the production method, which can be favorably used, for example, on an electrode formation surface of a liquid crystal display element substrate A liquid crystal aligning film or the like having a predetermined pattern is formed on the surface by printing. Background technique [0002] In order to form a liquid crystal aligning film on the electrode formation surface of a liquid crystal display element board|substrate, the method by the printing method, especially a flexographic printing method is considered. [0003] The liquid crystal aligning film is required to be as uniform in thickness as possible without pores, and to be as thin as possible. [0004] Therefore, the printing surface of the printing plate used for the said flexographic printing method (the surface which...

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Problems solved by technology

[0009] However, this method has the following problems: a step of developing and removing the uncured photosensitive resin composition is required, and a step of treating the removed photosensitive resin composition, the solvent used for removal, and the like is required.

[0017] However, in this method, there is a problem that a large-scale processing device must be used in order to etch the printed surface in a high-energy atmosphere such as plasma as described above.

[0021] However, in this method, the grinding powder is likely to remain on the printing surface, and the remaining grinding powder is mixed into the ink, or the printing surface is excessively ground by the grinding powder, resulting in partial loss of unevenness and a large change in the retention of the ink, resulting in a liquid crystal alignment film. Non-uniform film thickness or film quality, or reduced or non-uniform function as a liquid crystal alignment film

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