| 摘要 |
PURPOSE:To prevent the generation of the faulty forming of a printing ink even in case of printing a lot of sheets by composing a lipophilic polymer compd. of a copolymer contg. an unit derivated from a specified monomer as a constituting component. CONSTITUTION:The lipophilic polymer is composed of the copolymer contg. the unit derivated from the monomer shown by formula I as the constituting component. In formula I, R<1> is hydrogen atom or methyl group, Z is alkyl group which may be substd. with a substituting group having >=2C side chain, and is composed of alkyl (meth)acrylate and a polymer component having >=100 number average mol.wt., when (n) is 1, X is a divalent group capable of binding oxygen atom and the group Z, (n) is an integer of 0 or 1. Thus, the forming property against the printing ink, namely the plate wear of the composition is improved in the case of printing the lot of sheets. |
