| 摘要 |
PURPOSE:To improve the conserbative properties of a surface of this sensible heat recording paper, by using neutral or alkaline paper sheet made without employing aluminum sulfate or aluminum chloride as a supporter that forms this sensible heat recording paper. CONSTITUTION:A dyes precursor in 3-pyroligino-6-methyl-7-fluoran and/or 3-N- methylcyclohexylamino-6-methyl-7-anilinofluoran and an acidic developer in 2,2-bis (4'-hydroxyphenyl) propane are applied on neutral or alkaline paper sheet made without using aluminum sulfate or aluminum chloride, and dried. The paper of said supporter is obtained in such a manner that pulp is beaten, 10% calcium carbonate, 0.3% fibran 68 as a size agent and 0.6% cationic starch as a fixer are internally added and the fibers are sheet made. |
