HYDROPHILIZATION TREATMENT AGENT, AND ALUMINUM MATERIAL HAVING SURFACE TREATED WITH THE HYDROPHILIZATION TREATMENT AGENT

摘要

PROBLEM TO BE SOLVED: To provide a hydrophilization treatment agent that makes it possible to obtain a coating with excellent hydrophilicity and water proofness.SOLUTION: A hydrophilization treatment agent contains a PVA resin (A) having an acetoacetyl group and an oxyalkylene group and a crosslinking agent (B).