Title:
ORIGINAL PLATE FOR LITHOGRAPHIC PRINTING PLATE AND LITHOGRAPHIC PRINTING PLATE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/137345
Kind Code:
A1
Abstract:
Provided is an original plate for a lithographic printing plate having a large difference between solubility resistance to a developing solution for image portions and solubility for non-image portions, a high printing durability and good chemical resistance for image portions, and good solubility for non-image portions. The original plate for a lithographic printing plate has at least two recording layers including an alkali-soluble resin, upon a surface hydrophilic support body. At least one layer is a positive recording layer containing an infrared absorbent. The recording layer closest to the support body, among the at least two recording layers, contains: (A) an alkali-soluble polyurethane having an acid group; and (B) a (meth) acrylic resin having a repeating unit selected from structural units indicated by general formulas (I) and (II). In general formulas (I) and (II), R1 indicates a hydrogen atom or an alkyl group, Z indicates -O- or -N(R2)-, and R2 indicates a hydrogen atom or an alkyl group, etc. Ar1 and Ar2 indicate an aromatic group, and at least one is a heteroaromatic group. a and b indicate 0 or 1.
Inventors:
TAGUCHI YOSHINORI (JP)
AOSHIMA NORIO (JP)
AOSHIMA NORIO (JP)
Application Number:
PCT/JP2013/057076
Publication Date:
September 19, 2013
Filing Date:
March 13, 2013
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G03F7/095; C08F20/60; G03F7/00; G03F7/004; G03F7/30; G03F7/32
Foreign References:
| JP2009175195A | 2009-08-06 | |||
| JP2004157459A | 2004-06-03 | |||
| JP2011197308A | 2011-10-06 | |||
| JP2010507129A | 2010-03-04 |
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
Download PDF: