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US5126760A Expired / Lapsed US ⏱️ 0.0 years remaining

Direct digital halftone color proofing involving diode laser imaging

Assignee: Eastman Kodak Co
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Filing: 1990-04-25
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Granted: 1992-06-30
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Expires: 2010-04-25
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Abstract

Abstract A process is described for producing a direct digital, halftone color proof of an original image on a dye-receiving element, the proof being used to represent a printed color image obtained from a printing press, comprising: a) generating a set of electrical signals which is representative of the shape and color scale of an original image; b) contacting a dye-donor element comprising a support having thereon a dye layer and an infrared-absorbing material with a first dye-receiving element comprising a support having thereon a polymeric, dye image-receiving layer; c) using the signals to imagewise-heat by means of a diode laser the dye-donor element, thereby transferring a dye image to the first dye-receiving element; and d) retransferring the dye image to a second dye image-receiving element which has the same substrate as the printed color image.

Inventors

  • 👤 Charles D. DeBoer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:50
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/46; B41M5/465; B41M5/382; B41M5/38257; G; G03; G03F; G03F3/00; G03F3/10; G03F3/108; B41M5/392

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 133 words
A process for producing a direct digital, halftone color proof of an original image on a dye-receiving element, said proof being used to represent a printed color image obtained from a printing press, comprising: a) generating a set of electrical signals which is representative of the shape and color scale of said original image; b) contacting a dye-donor element comprising a support having thereon a dye layer and an infrared-absorbing material with a first dye-receiving element comprising a support having thereon a polymeric, dye image-receiving layer; c) using said signals to imagewise-heat by means of a diode laser said dye-donor element, thereby transferring a dye image to said first dye-receiving element; and d) retransferring said dye image to a second dye image-receiving element which has the same substrate as said printed color image.
Claim 2
Dependent Claim 133 words
A process for producing a direct digital, halftone color proof of an original image on a dye-receiving element, said proof being used to represent a printed color image obtained from a printing press, comprising: a) generating a set of electrical signals which is representative of the shape and color scale of said original image; b) contacting a dye-donor element comprising a support having thereon a dye layer and an infrared-absorbing material with a first dye-receiving element comprising a support having thereon a polymeric, dye image-receiving layer; c) using said signals to imagewise-heat by means of a diode laser said dye-donor element, thereby transferring a dye image to said first dye-receiving element; and d) retransferring said dye image to a second dye image-receiving element which has the same substrate as said printed color image.
Claim 3
Dependent Claim 22 words
The process of claim 1 wherein cyan, yellow, magenta and black dye-donor elements are employed to produce a halftone full color proof.
Claim 4
Dependent Claim 18 words
The process of claim 1 wherein each said dye-donor element contains an infrared-absorbing dye in said dye layer.
Claim 5
Dependent Claim 13 words
The process of claim 3 wherein said infrared-absorbing dye is a cyanine dye.
Claim 6
Dependent Claim 23 words
The process of claim 1 wherein spacer beads are employed in the dye-receiving layer of the dye-receiver during dye transfer by said laser.
Claim 7
Dependent Claim 20 words
The process of claim 1 wherein both said dye and receiver binder are transferred to said second dye image-receiving element.

References Cited (Backward Citations)

US3833441A Cited
GB2083726A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-06-30 1995-12-30 1996-06-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-06-30 1999-12-30 2000-06-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-06-30 2003-12-30 2004-06-30 $7700.00 Window Closed / Lapsed

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