The hyperchromic conversion medicine, radical polymerization being able to point to the ethylenic unsaturated monomer to the hyperchromic conversion manner, and to be the hyperchromic conversion medicine which under existing

摘要

PPROBLEM TO BE SOLVED: To provide a color deepening agent improving the density, depth and brightness of the color on the surface of printed paper, a dyed fiber, colored wood, a printed or a colored plastic product and imparting excellent antistatic properties and fretting resistance, to provide a method for deepening the color of the surface of an article using the color deepening agent and to provide the article obtained by treating with the color deepening agent. PSOLUTION: The color deepening agent is composed of a polymer particle-containing aqueous dispersion (A) having 1.50 refractive index and obtained by carrying out radical polymerization of an ethylenically unsaturated monomer in the presence of a cationic surfactant, an amphoteric surfactant (B), an anionic antistatic agent (C) and a silicone emulsion (D). The color deepening agent is characterized as comprising the cationic surfactant in an amount within the range of 0.1-0.5 wt.% based on the polymer particle. PCOPYRIGHT: (C)2005,JPO&NCIPI