Phosphorescent, fluorescent and reflective coated sheets or films and compositions and method for making the same

Abstract

Abstract Phosphorescent and fluorescent coated sheets and films and coating compositions and methods for making the same in which the coating compositions include a solid phase embodying a phosphorescent pigment and/or fluorescent pigment phase and a socalled hot melt coating or vehicle for the pigment. The coating compositions are applied to a carrier or base sheet by a continuous coating operation, at an elevated temperature, following which the coating composition is transferred from the carrier or base sheet to a polyester or like film, or to a paper sheet or woven fabric, on which it is carried to complete the phosphorescent and/or fluorescent coated film. The phosphorescent products are useful as label stock, highway warning signs and road stripes, identification tapes, which glow at night, on tags, games, clock faces, instrument dial faces and for other purposes and the fluorescent products are useful in the graphic art fields and elsewhere. The continuous coating operation is much more rapid than prior art processes and avoids the use of highly volatile solvents employed in that process and the industrial pollution and other hazards thereto, as well as the extended drying time of the solvents which is required in the use of such prior art methods. Finely divided light-reflective particles, such for example, as glass beads, aluminum foil chips, metal powders and colored plastic resinous particles may also be incorporated in the new coated sheets or films by application to the hot melt coating while the latter is in a soft condition to enable the finely divided reflective particles to adhere thereto.

Inventors

• 👤 Richard K Cornell
• 👤 Gerald J Deddo
• 👤 Henry L Gianatasio

Bibliographic Details