High-angularity retroreflective sheeting and method for manufacture
作者： Terry R. C O Minnesota Mining And Bailey
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摘要: A new embedded-lens retroreflective sheeting which exhibits superior properties, including angularity, and is made by a method of manufacture involving lamination techniques. Microspheres are embedded into first polymeric layer to less than one-half the average diameter microspheres, pre-formed spacing film laminated microsphere covered surface so as obtain conformation in substantially constant thickness over useful portion back microspheres.
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