EP0168224A2
Expired / Lapsed
EP
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Positively charged colored toner compositions
Assignee: Xerox Corp
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Filing: 1985-07-05
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Granted: —
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Expires: 2005-07-05
Abstract
Abstract This invention relates to dry positively charged colored toner composition comprised of resin particles, and a dye charge control composition represented by the following formula: wherein X is a chromophore molecule, A is a saturated linking group, and C is a triboelectric charge establishing group.
Inventors
- 👤 Trevor Ian Martin
- 👤 Francoise Martine Winnik
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 08:47
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0906; G03G9/0908; G03G9/0924
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
42 words
. A dry positively charged colored toner composition comprising resin particles, and a dye charge control composition represented by the following formula: wherein X is a chromophore molecule, A is a saturated linking group, and C is a triboelectric charge establishing group.
Claim 2
Dependent Claim
42 words
. A dry positively charged colored toner composition comprising resin particles, and a dye charge control composition represented by the following formula: wherein X is a chromophore molecule, A is a saturated linking group, and C is a triboelectric charge establishing group.
Claim 3
Dependent Claim
28 words
A toner composition in accordance with Claim 1 wherein the dye composition is present in an amount of from 0.1 percent by weight to 10 percent by weight.
Claim 4
Dependent Claim
31 words
A toner composition in accordance with Claim 1 or Claim 2 wherein the resin particles comprise styrene polymers, preferably selected from styrene methacrylate copolymers, styrene acrylate copolymers, and styrene butadiene copolymers.
Claim 5
Dependent Claim
47 words
A toner composition in accordance with any one of Claims 1 to 3 wherein X is a magenta chromophore, a cyan chromophore, or a yellow chromophore, and wherein the magenta chromophore is preferably 1-amino-4-hydroxy-2-alkylaminoanthraquinone, the cyan chromophore is preferably 1,4-diaminoanthraquinone-2,3-dicarboximide, and the yellow chromophore is preferably 1,5-bis-phenyithioanthraquinone.
Claim 6
Dependent Claim
25 words
A toner composition in accordance with any one of Claims 1 to 4 wherein A is a saturated alkylene group, preferably ethylene, propylene, or butylene.
Claim 7
Dependent Claim
36 words
A toner composition in accordance with any one of Claims 1 to 5 wherein C is selected from amines, quaternary ammonium salts, ethers, thioethers, sulfonamides, amides, biguanides, and esters, and is preferably dimethylamino, dipropylamino or dibutylamino.
Claim 8
Dependent Claim
28 words
A toner composition in accordance with any one of Claims 1 to 6 wherein the dye molecules have incorporated therein solubilizing groups, preferably alkyl groups, such as butyl.
Claim 9
Dependent Claim
29 words
A toner composition in accordance with any one of Claims 1 to 3, wherein the dye charge control composition is selected from N-(6'-n-octanoylhexyl) 1,4-diaminoanthraquinone-2,3-dicarboximide; 1-amino-2-(N,N-di-n-butyl-6-amino-hexyloxy)4-hydroxyanthraquinone; and 1-(4' N,N-di-methyl-6"-aminohexyl phenylthio)-5-phenylthioanthraquinone.
Claim 10
Dependent Claim
18 words
A developer composition comprising the toner composition of any one of Claims 1 to 8 and carrier particles.
Claim 11
Dependent Claim
26 words
A developer composition in accordance with Claim 9 wherein the carrier particles comprise a steel core, or nickel berry, optionally coated with polyvinylidene fluorides, or polystyrene.
Claim 12
Independent Claim
47 words
A method of developing electrostatic latent images comprising forming a negatively charged latent image on a photoresponsive imaging member, and contacting the resulting image with a developer composition comprising carrier particles and a positively charged colored toner composition according to any one of Claims 1 to 10.
Claim 13
Dependent Claim
24 words
A method of imaging in accordance with Claim 11 wherein the imaging member comprises a substrate, a photogenerator, and a diamine hole transport layer.
References Cited (Backward Citations)
No citation records indexed.
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