| 摘要 |
PROBLEM TO BE SOLVED: To provide an accurately color-matched product without wasting dyes and facilitating the color-matching in the dyeing of resins. SOLUTION: Dyeing liquids of three primary colors, i.e. red, blue and yellow, having definite concentration and definite temperature are prepared. The dyeing object is successively dipped in the red, blue and yellow dyeing liquids and the color matching is carried out by varying the dyeing time or the number of dyeing procedures for each color. Various colors can be developed from three primary colors by this method and, accordingly, the dyeing liquids can be used without changing the concentration, etc., to prevent the discharge of the liquids as wastes. COPYRIGHT: (C)2004,JPO
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