Method and apapratus for forming a matte finish on resin-coated

Details Method and apapratus for forming a matte finish on resin-coated Method and apapratus for forming a matte finish on resin-coated

1988-12-05

1990-09-04

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

264 19, 264284, 425364R, 425385, B29C 5904, B29D 1100

Patent

active

049542974

ABSTRACT:
A glosser, and method of glossing, includes a belt-type glosser in which resin-coated web or sheet material is pressed or molded against a casting surface of the belt under heat and pressure, and is thereafter removed. A matte surface is provided by forming a non-locking grooved pattern on the casting surface of the belt in the form of a diffraction grating. The grating configuration is formed with a series of lands, separated by grooves or depressions, in which the side walls of the depressions are tapered to provide a valley narrower at the bottom than at the top adjacent the land surfaces so as to be free of resin-trapping overhanging projections or portions. The spacing between the grooves may be randomized.

REFERENCES:
patent: 3541216 (1970-11-01), Rochlis
patent: 3882207 (1975-05-01), Hannan et al.
patent: 3959546 (1976-05-01), Hill
patent: 4258095 (1981-03-01), Larson et al.
patent: 4601861 (1986-07-01), Pricone et al.
patent: 4747991 (1988-05-01), Bishop
patent: 4761311 (1988-08-01), Stone et al.
Webster's II, New Riverside University Dictionary, Riverside Publishing, 1984, p. 402.

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