Method of copper staining a glass article

Details Method of copper staining a glass article Method of copper staining a glass article

1980-01-21

1981-03-03

Kaplan, Morris

Glass manufacturing

Processes

With chemically reactive treatment of glass preform

65 32, 427163, 4272554, C03C 2100

Patent

active

042538610

ABSTRACT:
Copper staining of a borosilicate glass article is described which utilizes a single heating step to produce red coloration in the stained glass. The method utilizes a particular liquid slurry to coat the surface of the glass article being treated which generates copper halide vapors during a single heating step in a controlled atmosphere to produce the desired final red color. Atmosphere control is exercised with non-reducing atmosphere conditions being maintained until the alkali metal ions in the glass surface have been replaced with copper ions and which is followed by conversion to reducing atmosphere conditions to convert the substituted copper ions to the metallic state.

REFERENCES:
patent: 2075446 (1937-03-01), Leibig
patent: 2428600 (1947-10-01), Williams
patent: 3420698 (1969-01-01), Smith
patent: 3424567 (1969-01-01), Smith
patent: 3429742 (1969-02-01), Grego et al.
patent: 3846095 (1974-11-01), Crouch
patent: 3997312 (1976-12-01), Besselink
Weyl, "Coloured Glasses", Society of Glass Technology, (1951), pp. 433-435.

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