Patent ID: 6221188
Filing Date: 2001-04-24
Classification: B24C,B41M,B44C,B44F,C03C

Abstract:
A glue chip process for producing a glass article having a three dimensional optical effect comprising the steps of:a. applying a screen print having an outline of a natural ice crystal pattern onto a glass substrate;b. screen printing a masking agent coating composition onto a glass substrate to provide an exposed area where a pattern of a natural ice crystal formation is to be formed;c. curing said masking agent coating composition;d. cooling said coated substrate;e. sandblasting said exposed area with a medium grit;f. cleaning the sandblasted surface area;g. applying an animal hide glue composition to the sandblasted glass surface;h. dehumidifying the glue composition coated on the substrate;i. heating said coated substrate to provide a first shrink of the glue composition to chip the glass substrate to form a natural ice pattern thereon;j. removing the chipped glass, glue composition and masking agent residues from the glass substrate whereby some residual glue composition may be present;k. reheating the glass substrate having a natural ice crystal pattern to provide a final shrink of any of the residual glue composition on the substrate; andl. recovering a glass substrate having a translucent simulated ice crystal formation having less than fifty percent fern-like patterns within said formation based on the total surface area of said ice crystal formation.