Expanded retroreflective sheet material
First Claim
1. Retroreflective sheet material comprising retroreflective sheeting laminated to a base sheet, the retroreflective sheeting being selected from (1) sheeting that comprises a monolayer of transparent microspheres and a layer of specularly reflective material underlying the microspheres and 2) sheeting that comprises cube-corner retroreflective elements;
- the laminated sheet assembly being slit in an array of spaced discontinuous slits; and
the laminated sheet assembly being expanded so that openings occur at the slits, and portions of the laminated sheet assembly between the slits bend out of the plane they originally occupied.
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Accused Products
Abstract
Retroreflective sheet material capable of retroreflecting light at high incidence angles is prepared by laminating retroreflective sheeting to a base sheet, slitting the laminated sheet assembly in an array of spaced discontinuous slits, and expanding the laminated sheet assembly so that openings occur at the slits and portions of the laminated sheet assembly between the slits bend out of the plane which they originally occupied.
65 Citations
5 Claims
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1. Retroreflective sheet material comprising retroreflective sheeting laminated to a base sheet, the retroreflective sheeting being selected from (1) sheeting that comprises a monolayer of transparent microspheres and a layer of specularly reflective material underlying the microspheres and 2) sheeting that comprises cube-corner retroreflective elements;
- the laminated sheet assembly being slit in an array of spaced discontinuous slits; and
the laminated sheet assembly being expanded so that openings occur at the slits, and portions of the laminated sheet assembly between the slits bend out of the plane they originally occupied. - View Dependent Claims (2, 3, 4, 5)
- the laminated sheet assembly being slit in an array of spaced discontinuous slits; and
Specification