System for spray coating substrates

Details System for spray coating substrates System for spray coating substrates

B - Operations, Transporting

05

B

32/70

B05B 15/12 (2006.01)

Patent

CA 1233633

ABSTRACT This invention relates to a system for spray coating substrates such as a continuously moving web of plastic film with a coating material to form on drying a film on the substrate. For example, this invention is applicable to providing plastic materials such as polyethylene film used in the packaging industry with a coating of a copolymer of vinylidene chloride (commonly referred to as "PVDC") to provide the polyethylene film with a gas barrier coating to prevent the migration of gas such as air through the plastic film. The process provides initially a wet uniform coating on the substrate which coating is then dried completely coalescing the material into a polymer film,

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