Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1993-05-05
1994-09-06
Ryan, Patrick J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428195, 428204, 428207, 428208, 428402, 428913, B32B 516
Patent
active
053447050
ABSTRACT:
A transfer sheet material for forming retroreflective graphic images on a substrate, the sheet material comprising a monolayer of transparent microspheres; a color layer printed over the microspheres in a first graphic segment of the sheet material in an imagewise pattern, the color layer comprising a transparent colorant in a transparent resin; a reflective layer printed over the microspheres in a second graphic segment of the sheet material in an imagewise pattern, the reflective layer comprising reflective flakes in a transparent binder, wherein the microspheres are partially embedded in at least one of the color layer and the reflective layer, individual microspheres having the reflective flakes arranged in cup-like fashion about their embedded portions; and a bonding layer printed over the color layer and the reflective layer, the bonding layer being sufficiently thick to embed all exposed surfaces of the color layer and the reflective layer and being adapted for use in securing the sheet material to a substrate. Also, a method for making such a sheet material.
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Griswold Gary L.
Kirn Walter N.
Knauer Richard T.
Krynski William A.
Minnesota Mining and Manufacturing Company
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