Patent ID: 6348254
Filing Date: 2002-02-19
Classification: B32B,Y10T

Abstract:
A pattern formation process of processing a pattern on a reflective pad comprising a fabric base layer, a metal coating layer covered on said fabric base layer and a glass bead layer formed of a plurality of glass beads and adhered to said metal coating layer, the pattern forming process comprising the step of applying a laser beam of frequency within about 2.5 HzËœ10 Hz and energy within 500 AËœ800 A at the speed of 200Ëœ800 s/sec to said aluminum coating layer and different locations of the glass beads of said glass bead layer to form sintered surface portions on said aluminum coating layer, first frosted surface portions on said glass beads of said glass bead layer at a bottom side, and second frosted surface portions on said glass beads of said glass bead layer at one lateral side.