Patent ID: 7157213
Filing Date: 2007-01-02
Classification: B41C,B41M,G03F

Abstract:
1. A composition for gravure printing comprising a positive type photosensitive compound for gravure printing having a photosensitive portion exposed and reacted with a near-infrared wavelength region laser, and solubilized in a developer liquid, wherein said developer liquid is comprised of: a) water; b) either one of or two kinds or more of tetramethyl ammonium hydroxide, benzyl triethyl ammonium hydroxide, beuzyl trimethyl ammonium hydroxide, tetrabutyl ammonium hydroxide, tetrapropyl ammonium hydroxide, potassium hydroxide, sodium hydroxide, applied as either organic or non-organic alkali capable of becoming a major material; and c) either one of or two kinds or more of hexametaphosphoric soda, triphosphate soda and monophosphate soda applied as liquid agent having dampening action for preventing a reduction in pH value; wherein said developer liquid comprises a pH value of 13.0 or more.