Printing plate material

A technology for printing plates and base materials, applied in printing, printing plates, printing processes, etc., can solve problems such as insufficient printing resistance, development, sensitivity, printing resistance, heat and humidity resistance, and insufficient sensitivity, etc. problems, to achieve excellent print resistance, good on-machine developability, and high sensitivity
CN101573241AInactive Publication Date: 2009-11-04KONICA MINOLTA MEDICAL & GRAPHICS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KONICA MINOLTA MEDICAL & GRAPHICS INC
Publication Date
2009-11-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

A printing plate material for use in CTP systems which has high sensitivity and is excellent in printing resistance and storage stability while retaining satisfactory on-press developability. This printing plate material comprises a base and an image-forming layer formed thereon, and is characterized in that the image-forming layer contains the following (A1) or (A2). (A1) Polymer particles having a glass transition temperature (Tg) of 70 DEG C or higher formed by the emulsion polymerization of a polymerizable carboxylated monomer and a polymerizable amidated monomer; (A2) polymer particles having a core / shell structure formed by emulsion polymerization in which the shells of the polymer particles are made of a polymer having a glass transition temperature (Tg) of 70 DEG C or higher obtained by the polymerization of a polymerizable carboxylated monomer and a polymerizable amidated monomer.
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Description

technical field

[0001] The present invention relates to a printing plate material, in particular to a printing plate material used in computer to plate (Computer To Plate: CTP). Background technique

[0002] Currently, in the printing field, printing using the CTP method is beginning to be carried out along with the digitalization of printing image data, but this printing requires CTP printing that is inexpensive, easy to operate, and has the same printing adaptability as the conventional so-called PS plate. Edition material.

[0003] In particular, in recent years, as a direct imaging (hereinafter referred to as DI) performance without using a special developer for development, it can be used in printing machines with this function, and has the same usability as PS plates. Plate materials require a general-purpose processless plate.

[0004] An infrared laser recording method having near-infrared to infrared wavelengths is mainly used for image formation of heat-free plat...

Claims

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