Coating processes – With post-treatment of coating or coating material – Solvent vapor treatment of coating
Patent
1979-11-30
1981-09-29
Smith, Ronald H.
Coating processes
With post-treatment of coating or coating material
Solvent vapor treatment of coating
118410, 118423, 118428, 118429, B05D 310
Patent
active
042923492
ABSTRACT:
Apparatus and method for applying a high volatility liquid to a moving web to form a coating on the web. The coating liquid is applied to the web through an extrusion-type or slide-type hopper covered by a hood which collects evaporated gas from the applied solvent at a region at which a solid-, liquid-, and gas-phase interface of the coating liquid is formed. The collected gas is utilized to suppress further gas evaporation from the three-phase interface thereby preventing the formation of stripe-like defects due to undesirable solidification of the forming liquid.
REFERENCES:
patent: 3418970 (1968-12-01), Phelps et al.
patent: 3518964 (1970-07-01), Nagler
patent: 3690917 (1972-09-01), Hershoff et al.
Ishiwata Mamoru
Ishiyama Masashi
Ozaki Kazuo
Uematsu Shinji
Bell Janyce A.
Fuji Photo Film Co. , Ltd.
Smith Ronald H.
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