| 摘要 |
PURPOSE:To obtain an ink jet recording material having excellent ink receptivity, water resistance and clearness of recorded images, by forming an ink- receiving layer of a polymer complex of a basic polymer and an acidic polymer. CONSTITUTION:A basic polymer and an acidic polymer having molecular weights of not less than 500 are used for forming an ink-receiving layer having excellent ink receptivity, water resistance and clearness of images. The basic polymer is a homopolymer or copolymer of N-vinylpyrrolidone, N- vinylpiperidone, N-vinyl-5-methyl-2-oxazolidone or the like, and the acidic polymer is a copolymer of an alkyl vinyl ether and maleic anhydride or the like. The polymers are used in a weight ratio of basic polymer to acidic polymer of 20/1-1/10. If the amount of the basic polymer is too large, water resistance is low, whereas if the amount of the acidic polymer is too large, ink receptivity is low. |
