Image formation induced by laser sensìveis compositions to radiation of positive work containing high proportion of black smoke.

摘要

b "image formation induced by laser sensu00ecveis compositions to radiation of positive work containing high proportion of black smoke d .Lithographic compositions sensitive to radiation for image formation induced by laser, which contain a compound sensitive to radiation of a positive work.An aqueous alkaline soluble resin and a relatively large proportion of black smoke.Such compositions, when coated on a metal substrate exposed to infrared radiation image to form a positive image after induced with an aqueous alkaline solution processing.The exposure is conducted with laser light at a wavelength in the range from approximately 800 to approximately 1100 nm at a power level from approximately 50 to approximatelyImadamente 250 MJ / cm ^ 2 ^.