EP0001068A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Lithographic printing plate with oleophilic sublimated image, process for its manufacture and electrostatic toner composition comprising a sublimatable material
Assignee: Individual
•
Filing: 1978-08-21
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Granted: —
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Expires: 1998-08-21
Abstract
Abstract Lithographic printing plate having an aluminium substrate (10) with a hydrophilic, porous anodic oxide layer thereon and an oleophilic image (14) deposited by sublimation from a carrier (16) in and on the anodic oxide layer. The sublimation can be performed using a laser irradiation. The image on the carrier can be obtained using electrostatic techniques. Use of electrostatic toners comprising a sublimatable material.
Inventors
- 👤 Howard A. Fromson
- 👤 Robert F. Gracia
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 23:23
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38207; B41C; B41C1/00; B41C1/10; B41C1/1091; B41M5/385; B41M5/398; G; G03; G03G; G03G13/00; G03G13/26; G03G13/28; G03G13/283; B41M5/3852; B41M5/388
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
28 words
Lithographic printing plate comprising an aluminum substrate having a hydrophilic, porous anodic oxide layer thereon and an oleophilic sublimated image in and on said layer of anodic oxide.
Claim 2
Dependent Claim
28 words
Lithographic printing plate comprising an aluminum substrate having a hydrophilic, porous anodic oxide layer thereon and an oleophilic sublimated image in and on said layer of anodic oxide.
Claim 3
Dependent Claim
10 words
Plate of claim 1 wherein the image area is reinforced.
Claim 4
Dependent Claim
15 words
Plate of claim 1 wherein the sublimated material comprises a disperse type heat transfer dye.
Claim 5
Dependent Claim
36 words
Process for making a lithographic printing plate which comprises: (a) providing an aluminum substrate having a hydrophilic, porous anodic oxide layer thereon; and (b) depositing an oleophilic image in and on the porous lyer by sublimation.
Claim 6
Dependent Claim
36 words
Process for making a lithographic printing plate which comprises: (a) providing an aluminum substrate having a hydrophilic, porous anodic oxide layer thereon; and (b) depositing an oleophilic image in and on the porous lyer by sublimation.
Claim 7
Dependent Claim
38 words
Process of claim 4 wherein an oleophilic image comprising a sublimatable material is formed on a carrier, said carrier is placed face down on said lithographic substrate and said oleophilic image is transferred to said substrate by sublimation.
Claim 8
Dependent Claim
13 words
Process of claim 5 wherein the image is formed on the carrier electrostatically.
Claim 9
Dependent Claim
16 words
Process of claim 6 wherein the image is formed on the carrier by charge transfer imaging.
Claim 10
Dependent Claim
63 words
Process for making a lithographic printing plate which comprises: (a) providing an aluminum substrate having a hydrophilic porous anodic oxide layer thereon; (b) forming an oleophilic image on an carrier by charge transfer imaging using a toner comprising a sublimatable material; and (c) contacting the imaged carrier with the porous layer and transferring the image in and onto the porous layer by sublimation.
Claim 11
Dependent Claim
63 words
Process for making a lithographic printing plate which comprises: (a) providing an aluminum substrate having a hydrophilic porous anodic oxide layer thereon; (b) forming an oleophilic image on an carrier by charge transfer imaging using a toner comprising a sublimatable material; and (c) contacting the imaged carrier with the porous layer and transferring the image in and onto the porous layer by sublimation.
Claim 12
Dependent Claim
14 words
Process of claim 8 wherein the toner contains a disperse type heat transfer dye.
Claim 13
Dependent Claim
43 words
Process of claim 4 wherein a laser responsive coating containing a sublimatable oleophilic material is applied to a carrier which is transparent to laser radiation and said oleophilic image is transferred to said porous layer via sublimation by selected irradiation with a laser.
Claim 14
Dependent Claim
47 words
Process of claim 4 wherein a laser responsive coating containing a sublimatable oleophilic material is applied to said substrate, an oleophilic image is transferred in and onto said porous layer via sublimation by selected irradiation with a laser and the non-image portion of the coating is removed.
Claim 15
Dependent Claim
47 words
Process of claim 4 wherein a coating containing a sublimatable oleophilic material is applied to said substrate, an oleophilic image is transferred in and onto said porous layer via sublimation by the application of heat through a mask and the non-image portion of the coating is removed.
Claim 16
Dependent Claim
7 words
Electrostatic toner composition comprising a sublimatable material.
Claim 17
Dependent Claim
7 words
Electrostatic toner composition comprising a sublimatable material.
Claim 18
Dependent Claim
9 words
Composition of claim 13 wherein the composition is oleophilic.
Claim 19
Dependent Claim
15 words
Composition of claim 13 wherein the sublimatable material is a disperse type heat transfer dye.
Claim 20
Dependent Claim
46 words
Process for imaging aluminum having a porous anodic oxide layer thereon which comprises contacting said layer with a laser responsive material containing a sublimatible material and selectively irradiating said aluminum with a laser to transfer the desired image by sublimation in and onto said porous layer.
Claim 21
Dependent Claim
46 words
Process for imaging aluminum having a porous anodic oxide layer thereon which comprises contacting said layer with a laser responsive material containing a sublimatible material and selectively irradiating said aluminum with a laser to transfer the desired image by sublimation in and onto said porous layer.
Claim 22
Dependent Claim
20 words
Process of claim 16 wherein the laser responsive material is applied to a carrier that is transparent to laser radiation.
Claim 23
Dependent Claim
14 words
Process of claim 16 wherein the laser responsive material is coated onto the aluminum.
References Cited (Backward Citations)
No citation records indexed.
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