Process for production of pattern-forming body

Abstract

A primary object of the present invention is to provide a process for the production of a pattern-forming body, the process enabling the formation of a highly precise pattern, requiring no post-exposure treatment and being free from a fear as to the deterioration of the pattern-forming body itself because no photocatalyst is contained in the produced pattern-forming body. In the present invention, the above problem can be solved by providing a process for the production of a pattern-forming body, the process comprising disposing a catalyst-containing layer-side substrate containing at least a photocatalyst-containing layer and a pattern-forming body substrate containing a characteristic-changeable layer which is changed in characteristics by the action of the photocatalyst in at least said photocatalyst-containing layer such that the photocatalyst-containing layer is in contact with the characteristic-changeable layer, followed by performing exposure to thereby change the characteristics of the exposed portion of the characteristic-changeable layer and thereafter dismounting the photocatalyst-containing layer-side substrate, thereby obtaining a pattern-forming body having a pattern which has been changed in characteristics on the characteristic-changeable layer.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a process for the production of a novel pattern-forming body usable in various applications including printing. [0002] In the process for the production of pattern-forming bodies wherein various patterns such as designs, images, characters and circuits are formed on a substrate, various pattern-forming bodies are produced. [0003] Explanations will be furnished taking the case of a printing process as an example. With regard to a planographic printing plate used for planographic printing which is a kind of printing method, a planographic printing plate having a pattern comprising a hydrophilic section which accepts ink and a section which does not accept any printing ink is produced, an ink image to be printed on the hydrophilic section is formed by using the planographic plate and the formed image is transferred to, for example, paper to carry out printing. In such printing, a pattern such as characters and figures ...

AI Technical Summary

Benefits of technology

"The present invention provides a process for producing a pattern-forming body with high accuracy and without the need for post-exposure treatment. The process involves disposing a photocatalyst-containing layer-side substrate containing a photocatalyst and a characteristic-changeable layer which is changed by the action of the photocatalyst. The substrate is then exposed to the photocatalyst and the characteristic-changeable layer is changed in characteristics at the exposed portion, resulting in a pattern. The substrate can be dismounted, and the photocatalyst-containing layer-side substrate can be reused or sold. The use of a photocatalyst-containing layer-side substrate separate from the pattern-forming body substrate eliminates the need for a separate pattern-forming body and simplifies the production process. The photocatalyst used in the process can be titanium dioxide, zincoxide, tinoxide, strontium titanate, tungstenoxide, bismuth oxide, or iron oxide."

Problems solved by technology

However, various post-exposure treatments such as the treatment using a fat-insensitizing solution are required.

This recording material poses problems-concerning the control of the strength of a laser, the treatments of residuals such as solid-like materials denatured by a laser and printing durability.

These methods therefore have the problem that a necessity of treating waste liquids arises.

Also, when a functional material is used as the photoresist, there is the problem that the photoresist is deteriorated by an alkaline solution and the like which are used in a developing process.

Although a highly precise pattern of a color filter and the like is formed by printing or the like, the pattern formed by printing has problems concerning positional accuracy and it is therefore difficult to form a pattern with high accuracy.

However, the conventional methods of producing a pattern-forming body by the action of a photocatalyst have the problems that there is a possibility of a deterioration caused by the photocatalyst depending on the type of pattern-forming body because the photocatalyst is structurally contained in the pattern-forming body itself to be produced.

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