Coloring method of copper product with marble stripes having strong layering sense and high glossiness

Abstract

The invention discloses a coloring method of a copper product with marble stripes having strong layering sense and high glossiness. The method comprises the following steps: (1) selecting a copper product with a colored surface, heating and dehumidifying; (2) uniformly spraying cupric nitrate solution with a spraying can on the surface of the copper product during heating until the surface of the copper product is blue; (3) further heating, and spraying ferric nitrate solution toward the surface of the copper product with the spraying can until the surface of the copper product is ochre; (4) further heating, and spraying toward the surface of the copper product with a spraying can filled with ferroferric oxide solution until the marble line is obtained on the surface of the copper product; (5) further heating, and spraying titanium dioxide solution uniformly can to the surface of the copper product by using the spraying until white stripe is presented on the surface of the copper product; and (6) further heat, spraying ferric nitrate solution toward the surface of the copper product for 3-4 times with the spraying can until yellow-white stripe is presented on the surface of the copper product. The method has the beneficial effect that the copper product colored by the method is coherent in color, rich and stable.

Description

technical field [0001] The invention relates to a coloring method, in particular to a method for coloring marble stripes of copper products with strong layering and high gloss. Background technique [0002] Due to the particularity of copper material, copper craft products exposed to the air for a long time are prone to oxidation reaction, darken the color, produce oxide scales, and grow copper rust, which will affect the artistic effect, artistic style, aesthetic sense and appreciation of the crafts, so copper In the process of making handicrafts, the last process must be surface coloring. At present, there are mainly six coloring methods for copper handicrafts: hot coloring, cold coloring, buried coloring, wrapped coloring, smoked coloring and barrel dipping coloring, among which hot coloring and cold coloring are more representative. The color of cold coloring is monotonous, lacks personality and level, and cannot fully express the artist's thoughts and artistic level, a...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the current thermal coloring method adopts overlapping and covering forms in the processing of transitional colors or complex colors, resulting in unnatural, opaque color transitions, unclear layers, easy fading, and rough hand feeling. This provides a method for coloring marble stripes with strong layering and high gloss on copper products