Patent ID: 7691220
Filing Date: 2010-04-06
Classification: B29C,B29K,B29L,B32B,Y10T

Abstract:
1. A method for depositing at least one functional film on at least a part of one face or both faces of one or more flat or curved substrates, comprising: leading each of the substrates one by one into a film-coating station so as to be advanced therein in a direction of advancement along a plane or a mean plane of the substrate, the substrate being a glass sheet, a film applicator unit, comprising at least one axis perpendicular to the direction of advancement and parallel to a plane of advancement of the substrate, being disposed in the film-coating station, multiple reels of film being mounted on the at least one axis; adjusting an upper one and a lower one of the multiple reels of film to set aside margins on opposing edges of the substrate; applying in the film coating station, a leader of the film of each of the multiple reels to, and holding the leader against, one face of the substrate at a varying location on the substrate; unwinding the multiple reels of film with a view to the film being applied in a strip to the advancing substrate; cutting the film at a varying location on the substrate; and holding a new film leader to be applied at a varying location on a same substrate, or on a following substrate, wherein a band width of each of the multiple reels and locations of the multiple reels on the at least one axis are chosen as a function of regions of the substrates which are to be covered by each film.