Patent ID: 6251477
Filing Date: 2001-06-26
Classification: D21F,D21H

Abstract:
An apparatus for coating a moving paper web, comprising:a first coating station where a first side of the web is coated with a coat layer;a first guide means for guiding the web to said first coating station;a first non-contact dryer downstream of and above the first coating station for drying the coat layer applied to the web in said first coating station without contacting the web, said first non-contact dryer comprising a first air dryer;a second guide means for guiding the web from said first coating station upwards into said first non-contact dryer;a first means for pulling the web from said first coating station through said first non-contact dryer, said first means for pulling the web from said first coating station through said first non-contact driver comprises a first group of drawing-in rolls furnished with a wire;a first non-contacting guide means for guiding the web within and through said first non-contact dryer so that the web is first guided upward, then substantially horizontally in a machine direction, and then downward, said first non-contacting guide means comprising air jets;a second coating station where a second side of the web is coated with a coat layer, said second coating station being downstream of said first non-contact dryer;a third guide means for guiding the web to said second coating station;a second non-contact dryer downstream of and above said second coating station for drying the coat layer applied to the web in said second coating station without contacting the web, said second non-contact dryer comprising a second air dryer;a fourth guide means for guiding the web from said second coating station upwards into said second non-contact dryer;a second means for pulling the web from said second coating station through said second non-contact dryer; anda second non-contacting guide means for guiding the web within and through said second non-contact dryer so that the web is first guided upward, then substantially horizontally in a machine direction, and then downward, said second non-contacting guide means comprising air jets.