Patent ID: 11919037
Assignee: nan
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 3:
4. A method for edge coloring/edge painting of leather substrates, comprising the steps of:
burnishing the edges of the leather substrate;
application of adhesion promoter on the edges of the leather substrate (0.1-0.3 mm thickness) and drying for a period of 1-2 min at room temperature;
application of adhesion promoter on a transfer film;
spraying or pouring of the liquid edge paint on the transfer film to convert it into solid edge colour paint of thickness about 0.06-0.08 mm and drying in shade for 24 hrs as a sticker film;
transfer of the edge paint from the sticker film to the edge of the leather substrate by application of heat 110-130° C. and pressure 60-70 PSI kg/cm2 and removal of the sticker film; and
application of finishing coat,
wherein the edge paint is a liquid which when poured on the transfer film with adhesion promoter is converted to solid colour and is transferred to the edge of leather substrate on application of temperature and pressure.