Method of removing air bubbles in a coating path before feeding a coating liquid
AssigneeFuji Photo Film Co., Ltd.
InventorsShingo Yamauchi, Yoshikatsu Takagi
Life of this patent
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Abstract
A method of feeding a coating liquid into a path from a tank to a coating apparatus through a filter and a degassing apparatus by a pump, comprising the steps of preparing a cleaning liquid containing degassed warm water in advance and aqueous solution of low surface tension; pouring the cleaning liquid into the path through the filter by the pump to dissolve bubbles contained in the filter into the cleaning liquid; exhausting the cleaning liquid from the path; filling the path as far as the coating apparatus with the new cleaning liquid anew; and substituting a coating liquid for the cleaning liquid sequentially.
Claims7
A method of feeding a coating liquid into a path from a coating liquid tank to a coating apparatus through a filter and a degassing apparatus by a pump, comprising the steps of:
- preparing warm water degassed in advance and aqueous solution of low surface tension as a cleaning liquid;
- pouring said cleaning liquid into said path through said filter by said pump to dissolve bubbles contained in said filter into said cleaning liquid;
- exhausting said cleaning liquid out of said path;
- filling said path as far as said coating apparatus with said cleaning liquid anew;
- and
- substituting a coating liquid for said cleaning liquid sequentially.
Dependencies are inferred from the claim text.