A PROCESS FOR THE MANUFACTURE OF LETTERS SYMBOLS DESIGNS AND PATTERNS FROM METAL OR PLASTIC FOIL

摘要

A process for the manufacture of letters, symbols, designs and patterns from metal or plastic foil as herein described comprising the coating on one surface of the foil with a non-corrodable material such as herein described of predetermined thickness and printing the letters, symbols, designs or patterns of predetermined thickness on the other side of the said foil also with the non-corrodable material; corroding as herein described the uncoated portion of the said foil and obtaining the letters, symbols, designs or patterns by dissolving and washing away the non-corrodable material in a solvent.