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Title:
DRY COLOR PRINTING PROCESS BY DIFFUSION ASSISTED PHOTOPOLYMERIZATION AND PHOTOGRAFTING
Document Type and Number:
WIPO Patent Application WO2001096120
Kind Code:
A3
Abstract:
Dry color printing process, in which a multilayer assembly that comprises a plurality of photosensitive compounds, each excitable by irradiation of given wavelength range; a plurality of monomer-dye components, each of which can be activated by one of the photosensitive compounds once this latter has been excited, and a polymer matrix, adapted to bind by photografting the photosensitive compounds once these latter have been activated, is provided. A digital file defining the color image to be printed and a plurality of light sources having different wavelengths, by each of which one of the photosensitive compounds is excitable are also provided. The multilayer assembly is irradiated with the light produced by the sources, according to a program determined by the digital file, whereby each of the photosensitive compounds activates the corresponding monomer-dye component to define an image.

Inventors:
DUKLER SHLOMO (IL)
MEERFELD YARON (IL)
WEISS VICTOR (IL)
Application Number:
PCT/IL2001/000530
Publication Date:
January 23, 2003
Filing Date:
June 11, 2001
Export Citation:
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Assignee:
KROMOTEK LTD (IL)
DUKLER SHLOMO (IL)
MEERFELD YARON (IL)
WEISS VICTOR (IL)
International Classes:
G03C1/73; (IPC1-7): G03C1/73
Foreign References:
US4197080A1980-04-08
Other References:
BELLOBONO I R ET AL: "PHOTOCHEMICAL GRAFTING OF ACRYLATED AZO DYES ONTO POLYMERIC SURFACES. I. GRAFTING OF 4-(N-ETHYL,N-2-ACRYLOXYETHYL) AMINO,4'-NITRO, AZOBENZENE ONTO POLYAMIDE AND POLYPROPYLENE FIBERS", JOURNAL OF APPLIED POLYMER SCIENCE, JOHN WILEY AND SONS INC. NEW YORK, US, vol. 26, 1981, pages 619 - 628, XP001053614, ISSN: 0021-8995
BELLOBONO I R ET AL: "PHOTOCHEMICAL GRAFTING OF ACRYLATED AZO DYES ONTO POLYMERIC SURFACES, IV. GRAFTING OF 4-(N-ETHYL-N-2-ACRYLOXYETHYL)AMINO-4'-NITRO-AZOBENZENE ONTO CELLULOSE", ANGEWANDTE MAKROMOLEKULARE CHEMIE. APPLIED MACROMOLECULAR CHEMISTRY AND PHYSICS, WILEY VCH,WEINHEIM, DE, vol. 100, 1981, pages 135 - 146, XP001053615, ISSN: 0003-3146
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