Hot roll glosser method with glossing temperature below free air

Details Hot roll glosser method with glossing temperature below free air Hot roll glosser method with glossing temperature below free air

1990-02-22

1990-12-18

Beck, Shrive P.

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

4273855, 427194, 162136, 100 93RP, 118 60, 118116, B05D 312

Patent

active

049785605

ABSTRACT:
A hot roll glosser and method for the transparentising of resin-coated microencapsulated media includes a pair of heated pressing rolls, in which the roll which comes into contact with a resin surface is formed with an ultra-smooth silicone surface of low furface energy, and the glossing temperature of the rolls at the pressing nip is maintained below the glass transition temperature of the resin. Take-off rolls are disclosed for maintaining a tension in the web material exiting the nip to maintain a negative exit angle with respect to the silicone roll and to prevent adhesion and sticking to the roll.

REFERENCES:
patent: 2555663 (1951-05-01), Cowgill
patent: 3732121 (1973-05-01), Long
patent: 3873345 (1975-03-01), Vreeland
patent: 4112192 (1978-09-01), Vreeland
patent: 4241143 (1980-12-01), Ashie et al.
patent: 4277524 (1981-07-01), Nakajima et al.
patent: 4290691 (1981-09-01), Giorgini
patent: 4368240 (1983-01-01), Nauta et al.
patent: 4624744 (1986-11-01), Vreeland
patent: 4807560 (1989-02-01), Stone et al.
patent: 4809599 (1989-03-01), Kawada et al.
Research Disclosure Article 27660, published Apr. 1987, "Hot Roller Fixture for Glossing", The Mead Corporation.

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