Photosensitive printing plate

摘要

PCT No. PCT/JP79/00060 Sec. 371 Date Nov. 13, 1979 Sec. 102(e) Date Nov. 13, 1979 PCT Filed Mar. 9, 1979 PCT Pub. No. WO79/00748 PCT Pub. Date Oct. 4, 1979.The photosensitive printing plate of this invention features incorporation of an organic foaming agent in the photosensitive composition that constitutes the photosensitive layer, said organic foaming agent being thermally decomposed upon drying of said composition under heating to thereby roughen the surface of the photosensitive layer. According to this invention, no specific mechanical treatment is required for forming the photosensitive layer and also there is no need of remodeling the existing coating equipments, and further, the vacuum contact time can be appreciably lessened, so that this invention can greatly improve the working efficiency in plate making and markedly reduce the production cost.