| 摘要 |
PROBLEM 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. SOLUTION: 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. COPYRIGHT: (C)2005,JPO&NCIPI
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