摘要:
A lithographic printing plate precursor comprising a support having a hydrophilic surface having provided thereon an image-forming layer containing a hydrophobic high molecular compound having at least either a functional group represented by formula (1) or a functional group represented by formula (2): wherein X+ represents an iodonium ion, a sulfonium ion or a diazonium ion.
摘要:
A lithographic printing plate precursor comprising a support having a hydrophilic surface containing hydrophilic graft polymer chains and a heat-sensitive layer containing at least either of fine particulate polymer and microcapsules, which is excellent in on press developing property, sensitivity and printing durability.
摘要:
A heat-sensitive precursor of lithographic printing plates, which comprises a hydrophilic layer provided on a substrate having an ink-receptive surface or coated with an ink-receptive layer; the printing plate precursor further having a water-soluble overcoat layer on the hydrophilic layer, and the hydrophilic layer being a three-dimensionally cross-linked hydrophilic layer, the heated area of that is easily removed by a fountain solution or ink when subjected to printing operations.
摘要:
The object of the present invention is to provide a planographic original plate which can be engraved directly according to digital signals by laser beams and which can be water-developed or can be used directly for printing without a developing process. This objective has been achieved by a planographic original plate comprising a substrate and a photosensitive layer which is supported by the substrate and which contains a polymeric compound having as a side chain at least one structural unit selected from the structural units represented by the general formulas (1) to (3).General Formula (1)--SO.sub.3 --CH.sub.2 --L.sub.n --O--ZIn the general formula (1), L represents a linking group composed of a non-metallic atom. --O--Z represents a group which is decomposed by an acid to become --OH. n is 0 or 1.General Formula (2)--SO.sub.3 --L--W.sup.1In the general formula (2), W.sup.1 represents a group which is decomposed by an acid and selected from an ester group, a ketal group, a thioketal group, an acetal group and a tertiary alcohol group. L represents a polyvalent linking group comprising a non-metallic atom, which is necessary for linking the structural unit which is represented by the general formula (2) to a polymer skeleton, and whose decomposition accompanies the decomposition of W.sup.1, which is decomposed by an acid, to generate sulfonic acid.General Formula (3) ##STR1## In the general formula (3), R.sup.1 to R.sup.3 may be the same or different, and each represents a group selected from a hydrogen atom, an alkyl group, an aryl group, a substituted amino group, an alkylthio group, an arylthio group, an alkoxy group, an aryloxy group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a cyano group, a halogen atom, and an amido group. Any two of R.sup.1 to R.sup.3 and a carbon atom linked thereto may form a ring together with a non-metallic atom.
摘要:
A lithographic printing plate precursor includes a support, and an image-recording layer, the image-recording layer contains a urethane resin having a polyalkylene oxide chain represented by the formula (1) as defined herein in a side chain, an infrared absorbing agent, a radical polymerizable compound and a radical polymerization initiator, and an unexposed area of the image-recording layer is capable of being removed with at least one of dampening water and ink.
摘要:
A lithographic printing plate precursor includes a support and a layer containing a polymer compound having at least one support-adsorbing group at a terminal of a main chain.
摘要:
A lithographic printing plate precursor includes: a support having a surface, a contact angle of water droplet in air on which is 70° or more; and a photosensitive layer, wherein the support has, on a surface of the support, a compound having a functional group X, the functional group X is a functional group capable of forming a chemical bond with a compound having a functional group Y which can interact with the functional group X, when the functional group X is brought into contact with the compound having a functional group Y, to adsorb the compound having a functional group Y on the surface of the support so as to decrease the contact angle of water droplet in air on the surface of the support to 30° or less.
摘要:
A lithographic printing plate precursor comprising: an aluminum support having a hydrophilic surface; and a photosensitive layer comprising a binder polymer having an acid value of 0.3 meq/g or less, wherein the photosensitive layer comprises a pigment dispersed with a pigment dispersant which is free from a —COOH group, a —PO3H2 group and a —OPO3H2 group.
摘要翻译:一种平版印刷版原版,包括:具有亲水表面的铝载体; 以及包含酸值为0.3meq / g以下的粘合剂聚合物的感光层,其中感光层包含分散有不含-COOH基的颜料分散剂的颜料,-PO 3 H 2基和-OPO 3 H 2基 。
摘要:
A lithographic printing plate precursor includes a support and an image-recording layer containing a binder, a radical polymerizable compound and a radical polymerization initiator, wherein the binder comprises a multifunctional thiol having from 6 to 10 functional groups as a nucleus and polymer chains connected to the nucleus through a sulfide bond and the polymer chains have a polymerizable group.
摘要:
A lithographic printing plate precursor includes: a support; and a photosensitive layer containing (A) an initiator compound, (B) a polymerizable compound and (C) a binder, wherein the photosensitive layer or other layer in contact with the support contains as (D) a component different from the component (C), a copolymer containing (a1) a repeating unit having at least one ethylenically unsaturated bond introduced through an ion pair and (a2) a repeating unit having at least one functional group capable of interacting with a surface of the support.