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Receptor-sheet-for-electrophotography

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Receptor sheet for electrophotography

Details

Inventors: Hosomura, Hiroyoshi; Aota, Koichi; Yoshimura, Eiji;
Assignee: Rank Xerox Limited (London, GB2)
Primary Examiner: Bell; James J.
Assistant Examiner:
Attorney, Agent or Firm:

A coated paper suitable for use in an electrophotographic process for receiving an image formed by a magnetic brush device with a single component developer is disclosed. The paper is coated with a composition made of a styrene/butadiene latex and a crosslinking agent for the latex, together with any desired pigment and nonionic emulsifier. The composition may be economically coated onto paper at an amount about 1 to 5 grams per square meter.

DETAILED DESCRIPTION What is claimed is: 1.
A coated paper suitable for use in an electrophotographic process for receiving an image formed by a magnetic brush device with a single component developer, said paper having a surface coated with a composition comprising about 100 parts by weight of a styrene/butadiene latex with 40 parts by weight of a melamine-formaldehyde resin as a crosslinking agent, and about 50 parts by weight of calcium carbonate as a pigment, said coating composition being coated on paper at an amount of about 3 grams/square meter.
2.
A coated paper according to claim 1 wherein the styrene content in said styrene/butadiene latex is less than about 50 percent by weight.
3.
A coated paper according to claim 1 wherein the coating composition further comprises a non-ionic surfactant as an emulsifier for said styrene/butadiene latex.
4.
A coated paper suitable for use in an electrophotographic process for receiving an image formed by a magnetic brush device with a single component developer, said paper having a surface coated with a composition comprising about 100 parts by weight of a styrene/butadiene latex, about 50 parts by weight of a melamine-formaldehyde resin as a crosslinking agent and about 25 parts by weight of a kaolin clay as a pigment, said coating composition being coated on paper at an amount of about 3 grams/square meter.
5.
A coated paper according to claim 1, wherein the styrene content in said styrene/butadiene latex is less than about 50 percent by weight.
6.
A coated paper according to claim 5 wherein the coating compositions further comprises a non-ionic surfactant as an emulsifier for said styrene/butadiene latex.
7.
A coated paper suitable for use in an electrophotographic process for receiving an image formed by a magnetic brush device with a single component developer, said paper having a surface coated with a composition comprising about 100 parts by weight of a styrene/butadiene latex, about 10 parts by weight of a urea-formaldehyde resin as a crosslinking agent, and about 70 parts by weight of a kaolin clay as a pigment, said coating composition being coated on paper at an amount of about 4 grams/square meter

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