Retro-reflective assembly and method of manufacturing same

摘要

In a retro-reflective assembly comprising a base member in whose surface is contained a contiguous layer of exposed retro-reflective elements and a plurality of support elements upstanding from said base member, this invention contemplates forming such support elements from viscous adhesive material and applying the adhesive material in a precise pattern to the base member by utilization of screen printing techniques. The encapsulating transparent film may then be applied to the sub-assembly by adhesive engagement with the top surfaces of the adhesive supports, eliminating the need for the application of substantial heat and pressure heretofore required.