Infrared-sensitive composition and printing plate precursor prepared from same

• Main Authors: WENG YINQIAO, ZHOU HUI, GAO MIAO, JIAO LEZE, YU ZHENGFA, XU NENGPING, LIU CHONGSHUANG, MA XIANYAO, HU LINGLING, YING ZUOTING, ZHU HAIMENG, TAO TING
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2018
• Subjects: APPARATUS SPECIALLY ADAPTED THEREFOR; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; LINING MACHINES; MATERIALS THEREFOR; ORIGINALS THEREFOR; PERFORMING OPERATIONS; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; PRINTING; PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES; STAMPS; TRANSPORTING; TYPEWRITERS

The invention provides infrared-sensitive composition and a printing plate precursor prepared from the same. The composition is prepared from an infrared absorber and a polymer containing hydroxypyrimidine groups. Therefore, the composition can be sensitive to radiation with the maximum wavelength of 700-1300 nm, the imageable printing plate precursor prepared from the composition can have good resistance to corrosion of ketone and alcohol solvents and is not prone to corrosion and dissolution by printing chemicals in a use process, and the service life of the printing plate precursor for lithographic printing can be prolonged. 本发明提供了种红外敏感组合物及利用该组合物制得的印版前体，所述组合物包含种红外吸收剂和种含羟基嘧啶基团的聚合物。如此使得该组合物不仅可对最大波长为700~1300nm的辐射敏感，而且由该组合物制成的可成像印版前体还对酮、醇类溶剂的侵蚀具有良好的耐抗性，在使用过程中不易发生被印刷化学品侵蚀、溶解的现象，从而有利于延长平版印刷印版前体的使用寿命。