Methods of Processing Stainless Steel Surfaces

 

Methods of Processing Stainless Steel Surfaces

Chemical Coloring

Stainless steel surfaces can be chemically colored without using pigments or dyes. Instead, stainless steel is immersed in a heated, concentrated chromium sulfate solution. This method is known for its good resistance to food. The ink used must have strong acid resistance, typically UV-cured ink with special properties compatible with the treatment process.

Surface Gloss Treatment

One method of processing stainless steel involves treating the surface to achieve a glossy finish. This gloss can be used to create artistic patterns. Another approach is to add color to the patterns, enhancing their visual appeal. Common techniques include etching and spraying.

Screen Printing and Etching

In this method, an acid-resistant protective film is screen-printed onto the stainless steel surface. The surface is then etched with ferrous chloride liquid to create artistic patterns.

Spraying

After screen printing, colorant particles are sprayed onto the surface to form a pearlescent finish, resulting in a unique artistic pattern.

Black Art Processing

To meet the growing artistic demands and diverse uses of stainless steel, the "black art" processing method has been developed. This mainstream technique involves using black ink in screen printing followed by firing, as well as chemical coloring methods.

Summary

Various techniques are employed to enhance the appearance and functionality of stainless steel surfaces. These include chemical coloring, surface gloss treatment, screen printing with etching, spraying, and advanced "black art" processing methods. Each technique offers unique aesthetic and practical benefits, catering to the diverse needs of stainless steel applications.

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