摘要:
A lithographic printing plate precursor comprising a hydrophilic support having thereon a heat-sensitive layer containing at least one of a thermoplastic particulate polymer having Tg of not lower than 60° C., a particulate polymer having a heat-reactive group and a microcapsule containing a compound having a heat-reactive group incorporated therein.
摘要:
A photosensitive planographic printing plate precursor comprising an aluminum substrate surface treated such that the center line surface roughness thereof (Ra) is in a range of from 0.30 &mgr;m or more to 0.55 &mgr;m or less and a photosensitive layer provided on the substrate and comprised of a photosensitive composition containing (a) a water-soluble or water-dispersible polymer, (b) a monomer or oligomer having at least one ethylenically unsaturated double bond capable of photopolymerization, and (c) a photopolymerization initiation system having &lgr;max in a range of from 330 nm or more to 375 nm or less such that the light absorbance A at &lgr;max and the absorbance B at 400 nm fulfill a relationship of B/A
摘要翻译:一种光敏平版印刷版原版,其特征在于,具有经处理使其中心线表面粗糙度(Ra)为0.30μm以上至0.55μm以下的铝基板表面的感光性平版印刷版原版,以及设置在基板上的感光层, 含有(a)水溶性或水分散性聚合物的光敏组合物,(b)具有至少一个能够光聚合的烯属不饱和双键的单体或低聚物,和(c)具有lambdmax范围内的光聚合引发体系 330nm以上至375nm以下,使得lambdmax的吸光度A和400nm处的吸光度B满足B / A <0.1的关系。 (a)水溶性聚合物的优选实例是含有磺酸(盐)基团的聚合物。
摘要:
The present invention relates to an image-forming layer which comprises a polymer having a carboxyl group-containing group which can be decarboxylated by exposure. According to the present invention, an image-forming layer having an improved coating strength and adhesion to a support, can be obtained.
摘要:
A light-sensitive composition which contains a polyurethane resin having a carbon-carbon unsaturated bond and a carboxyl group. A presensitized plate using the above light-sensitive composition can be developed with an aqueous alkaline developing solution and provides a lithographic printing plate having excellent printing durability.