Method for enhancing the permanence of printed images

Details Method for enhancing the permanence of printed images Method for enhancing the permanence of printed images

1989-12-12

1991-11-19

Pianalto, Bernard

Coating processes

Solid particles or fibers applied

Localized different areas produced

427202, 427314, 427359, B05D 500

Patent

active

050665170

ABSTRACT:
Apparatus for enhancing the permanence of printed images. A substrate with a heated, fused toner image is passed by a PTFE powder coated roller for selective contact therewith by a pivotable engagement bar. The PTFE particles are adhered only to the desired imprinted areas and not to the non-printed and non-selected areas of the substrate. The powder is dispensed on a selective basis to the surface of the substrate. The invention also includes the method for enhancing the permanence of a printed image on the substrate.

REFERENCES:
patent: 4100309 (1978-07-01), Micklus
patent: 4119094 (1978-10-01), Micklus et al.
patent: 4373009 (1983-02-01), Winn
patent: 4589873 (1986-05-01), Schwartz et al.
patent: 4642267 (1987-02-01), Creasy et al.
patent: 4666437 (1987-05-01), Lambert
patent: 4729914 (1988-03-01), Kliment et al.

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