Coating processes – Transfer or copy sheet making
Patent
1979-05-16
1982-05-04
Kendall, Ralph S.
Coating processes
Transfer or copy sheet making
421386, 421391, B32B 2738
Patent
active
043282652
ABSTRACT:
A transfer sheet for electrostatically transferring thereon an electrically conductive or electrically semi-conductive toner in electrostatic photography or electrostatic printing, which comprises a substrate and a toner-receiving layer formed on at least one surface of the substrate, which toner-receiving layer contains a composition comprising (A) a thermoplastic acrylic polymer having a carboxyl group content of 2 to 30% by weight and (B) a thermosetting resin reactive with the acrylic polymer (A), is produced by coating on at least one surface of the substrate an aqueous composition containing the thermoplastic acrylic polymer in the form of an aqueous emulsion and the thermosetting resin in the form of an aqueous solution and drying the coated substrate to form a toner-receiving layer on the surface of the substrate. In this transfer sheet, the electric resistance can be maintained at a high level even under high humidity conditions, and a toner image can be transferred on this transfer sheet at a high transfer efficiency.
REFERENCES:
patent: 2708645 (1955-05-01), Norman
patent: 3697171 (1972-10-01), Sullivan
patent: 3993825 (1976-11-01), Buchan et al.
patent: 4126594 (1978-11-01), Peters
patent: 4140836 (1979-02-01), Wallace
Derwent Abs., World Patent Reports, W33, p. 26, R24, GO3 d-h, J2419W/33.
Aizawa Tatsuo
Kamezawa Yasutoki
Kato Mamoru
Yamaura Susumu
Kendall Ralph S.
Mita Industrial Company Limited
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