PRIMER AGENT FOR POLYESTER FILM AND INK JET RECORDING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a primer agent capable of forming an easily adhesive coat for strongly sticking a polyester film to an ink receptive layer without deteriorating the ink absorptive properties of the ink receptive layer. SOLUTION: This primer agent for polyester film consists of at least, polyisocyanate and a polyester resin which has a hydroxyl group value of 1-30. In addition, the polyisocyanate and the polyester resin are mixed in such a manner that the NCO group of the polyisocyanate and the hydroxyl group of the polyester resin are set to the range of a mole ratio (1:1)-(10:1).