Method and apparatus for applying synthetic resin powder in a gr

Details Method and apparatus for applying synthetic resin powder in a gr Method and apparatus for applying synthetic resin powder in a gr

1976-05-13

1977-10-25

Smith, Ronald H.

Coating processes

Solid particles or fibers applied

Uniting particles to form continuous coating with...

101170, 118202, 118211, 118212, 118221, 118224, 427197, 427201, 427203, 427265, B05D 500, B05D 100, B05D 700

Patent

active

040556883

ABSTRACT:
A method of, and apparatus for, applying a synthetic resin or plastic powder in a grate-shaped coating to web material wherein an upper layer is formed so as to coincide with and lie upon a lower layer applied by a relief-like structured printing roll. The upper layer is also formed by a relief-like structure printing roll. The powder for both layers, during its transfer into the spaces of the rolls, is brought to its sinter temperature, whereas the web material, before forming the lower layer, is heated approximately to the plasticizing temperature of the powder for this layer. The powder piles of the upper layer are placed upon those of the lower layer directly after transferring the latter to the web material.

REFERENCES:
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patent: 2067239 (1937-01-01), Mayo et al.
patent: 2268890 (1942-01-01), Mortensen
patent: 2406287 (1946-08-01), Grimshaw
patent: 2695244 (1954-11-01), Fountain
patent: 2729193 (1956-01-01), Scholl
patent: 3313270 (1967-04-01), Labombarde et al.
patent: 3417925 (1968-12-01), Krikorian
patent: 3440076 (1969-04-01), Vaurio
patent: 3671284 (1972-06-01), Uhrig
patent: 3814052 (1974-06-01), Caratsch

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