초록 ▼

Exposed lens retroreflective article 10 that comprises a colored layer 14 and a layer of optical elements 12 that are partially embedded in the colored layer 14. The colored layer 14 comprises reflective flakes 16 and a dye that is covalently bonded to a polymer 18. The articles can retain their col

Exposed lens retroreflective article 10 that comprises a colored layer 14 and a layer of optical elements 12 that are partially embedded in the colored layer 14. The colored layer 14 comprises reflective flakes 16 and a dye that is covalently bonded to a polymer 18. The articles can retain their color after multiple industrial wash cycles. The use of a reactive dye, reflective flakes, and/or polymer precursor during the preparation of the colored layer enables a launderably-durable colored retroreflective article to be made without the use of a solvent and without the use of a temporary carrier.

대표청구항 ▼

[ What is claimed:] [1.]1. A method of making a colored retroreflective article, which method comprises:contacting a precursor color coating with optical elements, wherein the precursor color coating comprises a reactive dye, reflective flakes, and a polymer precursor; andcuring the precursor color

[ What is claimed:] [1.]1. A method of making a colored retroreflective article, which method comprises:contacting a precursor color coating with optical elements, wherein the precursor color coating comprises a reactive dye, reflective flakes, and a polymer precursor; andcuring the precursor color coating to form a colored layer that contains the reflective flakes, that has the dye covalently bonded to a polymer, and that has the optical elements supported by the colored layer,wherein the precursor color coating does not contain solvent, andwherein the precursor color coating is applied to release paper, and then the optical elements are applied over the precursor color coating wherein the optical elements are not disposed in a carrier layer.