Method for embossing a coated sheet with a diffraction or hologr

Details Method for embossing a coated sheet with a diffraction or hologr Method for embossing a coated sheet with a diffraction or hologr

1990-10-19

1992-11-17

Lowe, James

Coating processes

Optical element produced

264 13, 264 17, 264284, 427264, 427265, 427277, 427278, B29D 1100, B29C 5904, B05D 506

Patent

active

051642271

ABSTRACT:
A method for decoration of paper or plastic sheeting and other substrates, involving a novel technique for coating and embossing the substrate. The paper or plastic sheeting is supplied with a coating of thermosensitive material, as by extrusion. The coated sheet is heated to adequately soften the coating, such as by use of a heated cylinder, and remote heat sources such as infrared heaters. The softened sheet surface is then decorated using an embossing member, to provide a diffraction pattern or hologram. Use of an embossment pattern of lesser depth than the surface roughness of the sheet before embossing provides attractive decorative patterns.

REFERENCES:
patent: 3535413 (1970-10-01), Glenn, Jr.
patent: 4744936 (1988-05-01), Bittner, Jr.
patent: 4758296 (1988-07-01), McGrew
patent: 4913858 (1990-04-01), Miekks et al.

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