| 摘要 |
PURPOSE:To prevent a pressure sensitive copy sheet from contaminating by coloring due to contact by using polyvinyl alcohol as the stem polymer, and including a polymer that is its graft copolymer with acrylic amide, etc., in coating solution for forming a coating layer. CONSTITUTION:A coating layer of a microcapsule having synthetic polymer wall member including hydrophobic core substance containing colorant in provided on a support to obtain a pressure sensitive copy sheet. In this case, it is necessary to include polyvinyl alcohol and/or modified polyvinyl alcohol, as the stem polymer in the solution for forming the layer, and to mix a polymer that is the graft copolymer of at least one type of acrylamide and/or methacrylamide, polymerizable monomer having sulfonic acid group at a ratio of 0.1-40wt.% with the substance. |
