| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject ink, excellent in redispersibility, preservation stability and print resistance and usable in an ink jet type printing plate capable of printing bright images by converting dispersed resin particles into copolymer resin particles. SOLUTION: This ink is obtained by using copolymer resin particles prepared by polymerization granulation of a solution containing a comb type copolymer, etc., containing (A) at least one monofunctional monomer, which is soluble in a nonaqueous solvent and becomes insoluble by polymerization, (B) at least one monofunctional macromonomer having only one terminal of the main chain of the polymer composed of a recurring unit represented by formula I [V<0> is COO, OCO, etc.; (a<1> ) and (a<2> ) are each H, a halogen, cyano, etc.; D<0> is an 8-22C hydrocarbon, etc.] bonded to a polymerizable double bond group represented by formula II [V<1> is COO, CONHCO, etc.; (b<1> ) and (b<2> ) are each same as (a<1> ) and (a<2> )] and having <=2×10<4> weight average molecular weight and (C) at least one monocnctional macromonomer having only one terminal of the main chain bonded to a polymerizable double bond and 1×10<3> to 2×10<4> weight-average molecular weight as copolymerization components as dispersed resin particles. |
