The post processing of the finished glassware
1. Cold-working
At room temperature, the process by mechanical method to change the glass shape and appearance is known as the cold-working. The ways are glass Mosaic, chemical etching, tools engraving, sandblasting, engraving, laser engraving, cutting, paste shape modelling, made plastic, coloured drawing or pattern glass, laminated glass, etc.
2. Hot-working
Hot working, the main process is to use glass viscosity, temperature characteristic, thermal conductivity and the nature of the surface tension, etc, to carry on the processing operations. The method are: blowing, casting, pressing, sintering, fused, colored glaze, fold burning, hot melt, hot bending, etc.
3. Appearance treatment
all the appearance of machining process since cleaning up glass appearance until making all kinds of coating glass call appearance treatment, the methods are glass chemical etching, chemical polishing glass, glass appearance color coating, glass appearance
The methods above also widely use in the production of glass handicraft.