Abstract:
A method for processing a lithographic printing plate comprising development with an alkaline solution and gumming with a first gum solution and subsequently with a second gum solution, wherein both gum solutions are provided in a cascade configuration whereby the second gum solution overflows into the first gum solution and wherein the plate material comprises an aluminium support having a hydrophilic surface which comprises more than 2.0 g/m 2 of aluminum oxide.
Abstract translation:一种用于处理平版印刷版的方法,所述方法包括用碱性溶液显影并用第一树胶溶液涂胶并随后用第二树胶溶液涂胶,其中两种树胶溶液以级联结构提供,由此第二 橡胶溶液溢出到第一胶溶液中,并且其中板材包含具有亲水表面的铝载体,其包含大于2.0g / m 2的氧化铝。 p>
Abstract:
A method for processing a lithographic printing plate material comprising the steps of treating the plate material with an alkaline development solution, and treating the plate material with an aqueous liquid whereby the aqueous liquid is sprayed to both the front side and the backside of the plate material.
Abstract:
A positive-working lithographic printing plate precursor is disclosed which comprises on a support having a hydrophilic surface or which is provided with a hydrophilic layer a heat and/or light- sensitive coating including an infrared absorbing agent, a compound including a blocked isocyanate group and an alkali soluble resin comprising a monomeric unit including a Lewis base moiety.
Abstract:
An alkali soluble resin is disclosed comprising a first monomeric unit including at least one sulfonamide group and a second monomeric unit derived from the monomer according to the following structure (I) wherein R 1 represents a structural moiety comprising an ethylenically unsatured polymerisable group; R 2 , R 3 and R 4 independently represent hydrogen, an optionally substituted alkyl, alkenyl, alkynyl, alkaryl, aralkyl, aryl or heteroaryl group or, the necessary atoms to form a five to eight membered ring.
Abstract translation:公开了包含至少一种磺酰胺基团的第一单体单元和根据以下结构(I)衍生自单体的第二单体单元的碱溶性树脂,其中R 1表示包含烯属不饱和可聚合基团的结构部分; R 2,R 3和R 4独立地表示氢,任选取代的烷基,烯基,炔基,烷芳基,芳烷基,芳基或杂芳基,或形成五至八元环的必要原子。
Abstract:
A method for processing a lithographic printing plate comprising development with an alkaline solution and gumming with a first gum solution and subsequently with a second gum solution, wherein both gum solutions are provided in a cascade configuration whereby the second gum solution overflows into the first gum solution and wherein the gum solution(s) include a nitrate salt.
Abstract:
A method and apparatus for processing a lithographic printing plat comprising development with an alkaline solution and gumming with first gum solution and subsequently with a second gum solution, wherein both gum solutions are provided in a cascade configuration whereby the second gum solution overflows into the first gum solution.
Abstract:
A positive-working lithographic printing plate precursor is disclosed which comprises on a support having a hydrophilic surface or which is provided with a hydrophilic layer a heat and/or light-sensitive coating including an infrared absorbing agent and a compound including a benzoxazine group.
Abstract:
A method for processing a lithographic printing plate material is disclosed which comprises the steps of (i) preparing an alkaline development solution by diluting a mother solution at a ratio of 1:D; (ii) preparing a replenishment solution by diluting said mother solution at a ratio of 1:R; (iii) treating the plate material with said alkaline development solution which is regenerated with said replenishment solution characterized in that 0 ≤ R
Abstract:
An apparatus for processing a lithographic printing plate material comprising a development unit and a recirculation system comprising a closed loop including at least one inlet opening for sucking in a development solution and at least one inlet opening for injecting said developing solution.
Abstract:
A copolymer comprising (i) a plurality of ethylenic moieties A having a structure according to the following formula (I): wherein R 2 and R 3 independently represent hydrogen, a halogen or an optionally substituted linear, branched or cyclic alk(en)yl group, or an optionally substituted aromatic or heteroaromatic, and (ii) a plurality of acetal moieties B having a structure according to the following formula (II): wherein L represents a divalent linking group; x = 0 or 1 and R 1 represents an optionally substituted aromatic or heteroaromatic group including at least one hydroxyl group. Use of these polymers in the coating of lithographic printing plat provides a good abrasion resistance while the balance between the ink acceptance, arising from the ethylenic moieties, and the solubility in an alkaline developer, arising form the acetal moieties, can be controlled efficiently.
Abstract translation:一种共聚物,其包含(i)具有根据下式(I)的结构的多个烯属部分A:其中R 2和R 3独立地表示氢,卤素或任选取代的直链,支链或环状烷(烯)基, 或(ii)具有根据下式(II)的结构的多个缩醛部分B:其中L表示二价连接基团; x = 0或1,R 1表示任选取代的包含至少一个羟基的芳族或杂芳族基团。 在平版印刷平版印刷涂层中使用这些聚合物提供了良好的耐磨性,而可以有效地控制由乙烯部分产生的油墨接受与由缩醛部分产生的在碱性显影剂中的溶解度之间的平衡。