| 摘要 |
PURPOSE:To prevent spontaneous color development from occurring when a business form is preserved, obtain a clear copied image upon copying and prevent bleeding color development in an area printed in a color developing ink, by incorporating a phenolic resin or a metallic salt of an aromatic carboxylic acid, a fatty acid ester of sorbitan, and polydimthylsiloxane or a derivative thereof. CONSTITUTION:A phenolic resin is a novolak-type one which does not contain a methylol group and in which a phenolic hydroxyl group is not yet brought into reaction. A metallic salt of an aromatic carboxylic acid is one in which the aromatic carboxylic acid has one carboxyl group per aromatic nucleus. A fatty acid ester of sorbitan is preferably a higher fatty acid ester. Polydimethylsiloxane or a derivative thereof is polydimethylsiloxane or at least one oily compound of general formula (I), wherein X is phenyl, phenetyl or an alkyl, and each of m and n is 1-20, such compound being used either singly or in combination. |
