Patent ID: 6287384
Filing Date: 2001-09-11
Classification: B05C,B05D,G03C,Y10S

Abstract:
An apparatus for coating a web to be coated with a coating solution as a free falling curtain comprising:a hopper with a slide plane on which said coating solution flows and with a hopper lip from where said coating solution begins to fall down as said free falling curtain;a pair of edge guides guiding both edge parts of said curtain to the falling direction; andat least a pair of outlets for discharging an auxiliary solution directly into contact with an edge of said free falling curtain at the site of discharge which are disposed in said edge guides along each edge part of said curtain and at a fixed distance downward from the hopper lip;wherein each of said auxiliary solutions is introduced between said free falling curtain and said edge guides from the width directions so as to maintain said curtain in the width direction, andwherein at least a pipe penetrating said edge guides supplies the auxiliary solution to said curtain through said outlets.