EP0061176A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multicolor jet printing
Assignee: Individual
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Filing: 1982-03-19
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Granted: —
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Expires: 2002-03-19
Abstract
Abstract A method is provided for jet printing in a plurality of colors on a substrate which is coated with one component of a dye. The jet printing nozzles (21, 22, 23) direct droplets of liquid to the substrate (10) containing the complementary dye components which produce a finished dye at the points of impact of the liquid onto the substrates. Different jet printing nozzles utilize different complementary dye components on the same substrate, producing different dyes and thereby different colors.
Inventors
- 👤 Joseph Savit
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 01:09
CPC Classifications
D; D06; D06P; D06P5/00; D06P5/30; B; B41; B41M; B41M1/00; B41M1/14; D06B; D06B11/00; D06B11/0056; D06B11/0059
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
184 words
A method of printing a multicolor image on a substrate comprising providing a first jet printing nozzle at a fixed distance from said substrate, providing relative transverse movement between said first jet printing nozzle and said substrate while ejecting from said first jet printing nozzle and toward said substrate a first stream of individual image forming liquid droplets comprising a first image forming composition, providing at least a second printing nozzle at a fixed distance from said substrate, providing relative transverse movement between said second jet printing nozzle and said substrate while ejecting from said second jet printing nozzle and toward said substrate a second stream of individual image forming liquid droplets comprising a second image forming composition, each of said first and second image forming compositions containing a different substantially colorless material capable of being converted to a colored material by reaction with a chemical agent, and said substrate having a surface composition comprising a chemical agent capable of converting said first image forming composition to a material of one color and said second image forming composition to a material of another color.
Claim 2
Independent Claim
184 words
A method of printing a multicolor image on a substrate comprising providing a first jet printing nozzle at a fixed distance from said substrate, providing relative transverse movement between said first jet printing nozzle and said substrate while ejecting from said first jet printing nozzle and toward said substrate a first stream of individual image forming liquid droplets comprising a first image forming composition, providing at least a second printing nozzle at a fixed distance from said substrate, providing relative transverse movement between said second jet printing nozzle and said substrate while ejecting from said second jet printing nozzle and toward said substrate a second stream of individual image forming liquid droplets comprising a second image forming composition, each of said first and second image forming compositions containing a different substantially colorless material capable of being converted to a colored material by reaction with a chemical agent, and said substrate having a surface composition comprising a chemical agent capable of converting said first image forming composition to a material of one color and said second image forming composition to a material of another color.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein said first and second streams are ejected toward said substrate at the same time.
Claim 4
Dependent Claim
33 words
3 . The method of claims 1 or 2 wherein said first and second image forming compositions are free of resinous materials and said substrate surface composition contains at least one resinous material.
Claim 5
Independent Claim
49 words
The method of anyone of claims 1-3 wherein said chemical agent in said substrate surface composition comprises at least one diazonium salt and said colorless materials in said first and second image forming compositions comprise different azo coupling agents which produce different colors when reacted with said diazonium salt.
Claim 6
Independent Claim
14 words
The method of anyone of claims 1-4 wherein said substrate comprises a resinous film.
Claim 7
Dependent Claim
13 words
The method of claim 5 wherein said resinous film is a polyester film.
Claim 8
Dependent Claim
20 words
A substrate for a jet printer comprising a sheet or film material having a coating thereon comprising a diazonium salt.
Claim 9
Dependent Claim
20 words
A substrate for a jet printer comprising a sheet or film material having a coating thereon comprising a diazonium salt.
Claim 10
Dependent Claim
23 words
The substrate of claim 7 wherein said sheet or film material is a non-absorbent resinous film and said coating includes a resinous binder.
Claim 11
Dependent Claim
12 words
The substrate of claim 8 wherein said resinous film is a polyester.
Claim 12
Dependent Claim
70 words
A jet printed substrate comprising a sheet or film material having a coating thereon comprising a diazonium salt and having image dots of at least two colors thereon, said image dots of one color comprising a dye of said diazonium salt with at least one azo coupling agent and said image dots of another color comprising another dye of said diazonium salt with at least one other azo coupling agent.
Claim 13
Dependent Claim
70 words
A jet printed substrate comprising a sheet or film material having a coating thereon comprising a diazonium salt and having image dots of at least two colors thereon, said image dots of one color comprising a dye of said diazonium salt with at least one azo coupling agent and said image dots of another color comprising another dye of said diazonium salt with at least one other azo coupling agent.
References Cited (Backward Citations)
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GB1298865A
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FR2078134A5
Cited
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Cited
US3937045A
Cited
FR2269107A1
Cited
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