Coloring composition for alkali polymerized nylon and colored alkali polymerization nylon molded article

摘要

Problem to be solved: to provide a coloring composition for an alkali polymerized nylon which has little contamination in the working environment and has good dispersibility of the pigment in the alkali polymerization nylon raw material, and is easy to clean and measure the apparatus. Also, a colored alkali polymerization nylon molded article having a small number of agglomerates of color irregularities and colorants is provided.The coloring composition for the alkaline polymerized nylon of the present invention comprises a colorant, an amide solvent and a pigment dispersant, and the amide based solvent comprises one or more types of N-methyl-2-pyrrolidone, n-ethyl-2-pyrrolidone, 2-pyrrolidone and caprolactam The pigment dispersing agent is composed of one or more kinds of nonionic surfactant, resin type dispersant and silicone oil.The colored alkali polymerization nylon molded article of the present invention contains a coloring composition for the alkali polymerization nylon in the raw material composition.Diagram