| 摘要 |
<p>PURPOSE:To obtain the title ink which neither erases the writing on a noncarbon paper nor is discolored even on a heat-sensitive paper, by mixing a fluorescent pigment, water, and a specified compound. CONSTITUTION:The titled ink is obtained by mixing and milling 0.5-25wt.% organic or inorganic fluorescent pigment (e.g., ZnO), 50wt.% or less one or more compounds selected from sorbitans and saccharides (e.g., glucose), 20wt.% or less additives, such as a high-molecular dispersing agent (e.g., gelatin), a surface active agent (e.g., a polyoxyethylene alkyl ether), glycerin, an antiseptic, a rust-preventive agent, and a mildewproofing agent, if required,, and water in a dispersion mixer, such as a ball mill or an attritor, to form a dispersion.</p> |
