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US 4,975,304 AGranted
Coating method
AssigneeFuji Photo Film Co., Ltd.
InventorsSei Kawahara, Toshiyuki Ogura, Shogo Isayama, Matsutaroh Hirose
Life of this patent
Estimating the term…
Abstract
A method of curtain coating that applies a free falling curtain of liquid coating composition onto a running support is disclosed. In the method, the sides of the support parallel to the running direction of the support are bent downwardly before the curtain is applied, and thus are not coated, and are subsequently unbent.
Claims12
A method of curtain coating a running support, comprising:
- downwardly bending at least one side of the support which extends parallel to a running direction of the support, and subsequently applying a free falling curtain of a liquid coating composition onto the unbent portion of the running support while supporting said curtain at lateral sides thereof with side guides, said at least one side of said support being bent downwardly by an amount sufficient so that no part of said curtain contacts said at least one downwardly bent side.
A method of curtain coating a running support, comprising:
- bending a first side of the support which extends parallel to a running direction of the support downwardly, bending an opposite second side of said support which extends parallel to said running direction of said support downwardly, and subsequently applying a free falling curtain of a liquid coating composition comprising a plurality of constituent layers onto an unbent portion of the running support, said first and second sides being bent by an amount sufficient so that no part of said curtain contacts said first and second sides of said support.
A method of curtain coating a running support, comprising:
- bending the sides of the support parallel to the running direction of the support downwardly at an angle of not more than 100.degree. with respect to a plane of a main body of said support, supporting said curtain at lateral sides with side supports, and applying a free falling curtain of a liquid coating composition onto the running support, said curtain being formed wider than said support in an unbent state, the portions of the current extending outwardly of the main body of said support forming vena contractae, the bent sides of said support remaining uncoated due to said vena contractae.
Dependencies are inferred from the claim text.