Method of forming a protective and decorative sheet material on a substrate
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United States of America Patent
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Jun 2, 1992
Issued Date -
N/A
app pub date -
Nov 21, 1990
filing date -
Nov 21, 1988
priority date (Note) -
Expired
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Abstract
In the manufacture of a decorative sheet material to be bonded to a substrate to provide a surface having a brushed metal appearance, a light-reflective, glossy metal layer is formed on a thermoformable carrier film. A pattern of straight and parallel microscopic cracks is created in the metal layer at a temperature below Tg of the carrier film by bi-directionally bending and drawing the resulting sheet material around a straight cracking member. Thereafter, the sheet material is stretched at a temperature above Tg of the carrier film. This creates an attractive brushed metal appearance of reduced gloss.
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