| 摘要 |
PURPOSE:To enhance adhesion between an undercoat layer and a white coat or top coat layer by dispersing into a carrier liquid a saturated polyester resin having thermosettings functional groups and specified in melting point and number average molecular weight, a cross-linking agent, a colorant, an electric charge regulator, and other necessary additives. CONSTITUTION:The carrier liquid contains the saturated polyester resin having thermosetting functional groups, a melting point of >=40 deg.C, and a number average molecular weight of 3,000-20,000 and the cross-linking agent causing hardening reaction in baking conditions, such as polycarboxylic acid, i.e., trimellitic acid, pyromellitic acid, tetrahydrophthalic acid, adipic acid, and sebacic acid, and their anhydrides, epoxy resins, amino resins, i.e., melamine resin and urea resins, and block isocyanates, the colorant, the charge regulator, and other necessary additives, thus permitting an image satisfying various requirements to be obtained after thermosetting. |
