| 摘要 |
PURPOSE:To obtain a thermal stencil printing base paper film realizing clear plate making and printing in both character and solid printing with remarkably improved sensitivity and resolving power. CONSTITUTION:As a thermal stencil printing base paper film, a polyester film made of at least two different kinds of polyesters compatible with each other is used. One of said polyesters, i.e., a polyester A, has a melting point Tm<=210 deg.C and a crystal melting energy DELTAHu>=4cal/g. |
