| 摘要 |
PURPOSE:To provide heat sensing record sheet provided on the substrate with heat sensing layer consisting of color developing material, organic acid material and specified wax and providing sharp pictures with excellent heat responsive property and high recording concentration. CONSTITUTION:To main component of (A) 1 weight part of normally colorless or slightly colored color developing material and (B) organic acid material for developing color of (A) component when it is heated are applied (C) 0.1-5.0 weight part of at least 1 kind of wax selected from condensates of high class fatty acid amid and formaldehyde or condensate of high class fatty acid and ethylenediamine and (D) heat sensing layer forming liquid prepared from 0.2-6.0 weight part of at least 1 kind of wax selected from vegetable wax or mineral wax. They are applied and dried to provide 4-10g/m<2> of solid on the substrate. |
