Process for producing pressure-sensitive copying paper

Details Process for producing pressure-sensitive copying paper Process for producing pressure-sensitive copying paper

1978-02-16

1980-10-28

Beck, Shrive P.

Coating processes

Transfer or copy sheet making

282 275, 427150, 427151, 427152, 427420, B41M 512, B41L 100

Patent

active

042307430

ABSTRACT:
A process for producing a pressure-sensitive copying paper which comprises forming a single-layer, free-fall, vertical curtain of a coating solution containing microcapsules as a main component and coating the coating solution onto a continuously running web across the single-layer, free-fall, vertical curtain and a process for producing a pressure-sensitive copying paper which comprises forming a dual-layer, free-fall, vertical curtain of a coating solution containing microcapsules as a main component and a coating solution containing a color developer as a main component and coating the coating solutions onto a continuously running web across the dual-layer, free-fall, vertical curtain.

REFERENCES:
patent: 3205089 (1965-09-01), Kinzelman
patent: 3461840 (1969-08-01), Turner
patent: 3508947 (1970-03-01), Hughes
patent: 3632374 (1972-01-01), Greiller
patent: 3955026 (1976-05-01), Matsukawa et al.
patent: 3963852 (1976-06-01), Baxter
patent: 3970769 (1976-07-01), Kato et al.
patent: 4038445 (1977-07-01), Robertson
patent: 4041897 (1977-08-01), Ade
patent: 4051303 (1977-09-01), Hayashi et al.

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