EP0207628A2
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EP
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An electrostatic recording dry toner
Assignee: Nippon Paint Co Ltd
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Filing: 1986-05-29
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Granted: —
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Expires: 2006-05-29
Abstract
Abstract A electrostatic recording dry toner made up of a uniform mixture of (A) precolored resin particles consisting essentially of thermoplastic resin and colorant and having an average size of 5 to µ, (B) spherical resin particles having an average size of 0.01 to 2.00µ and having on their surfaces a charge controlling agent or cationic or anionic resin, and (C) silica particles having an average size of 1µ or less, is provided. The present dry toner can produce copies with high picture qual- lties at a higher transfer ratio even in a long run continuous reproduction.
Inventors
- 👤 Katsukiyo Ishikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 04:55
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/0819; G03G9/097
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
12 words
An electrostatic recording dry toner made up of a uniform mixture of
Claim 2
Dependent Claim
12 words
An electrostatic recording dry toner made up of a uniform mixture of
Claim 3
Dependent Claim
58 words
(A) precolored resin particles consisting essentially of thermoplastic resin and colorant and having an average size of 5 to 15µ. (B) spherical resin particles having an average size of 0.01 to 2.00µ and having on their surfaces a charge controlling agent or cationic or anionic resin, and (C) silica particles having an average size of 1µ or less.
Claim 4
Dependent Claim
58 words
(A) precolored resin particles consisting essentially of thermoplastic resin and colorant and having an average size of 5 to 15µ. (B) spherical resin particles having an average size of 0.01 to 2.00µ and having on their surfaces a charge controlling agent or cationic or anionic resin, and (C) silica particles having an average size of 1µ or less.
Claim 5
Dependent Claim
20 words
The dry toner according to claim 1 wherein the precolored resin particles (A) are substantially free from charge controlling agent.
Claim 6
Dependent Claim
28 words
The dry toner according to claim 1 wherein the spherical resin particles (B) each has a surface coating of a charge controlling agent or cationic or anionic resin.
References Cited (Backward Citations)
No citation records indexed.
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