Coating apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorsMikio Tomaru, Norio Shibata
Life of this patent
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Abstract
A coating apparatus (10) has a coating head having a front edge surface (11) and a doctor edge surface (12). The coating head of the coating apparatus (10) is pressed onto a flexible support (100) laid and running between pass rollers (101) so that the support (100) can be coated with coating composition. The doctor edge surface (12) of the coating apparatus (10) is formed so that the variation rate, in the support width direction, of blade thickness in the support running direction of the doctor edge surface (12) does not exceed 5%.
Claims5
An extrusion coating apparatus for coating a flexible support which comprises a coating head having a front edge surface and a doctor edge surface with a slit arranged therebetween, wherein said coating head applies a coating liquid discharged from the slit onto a flexible support and wherein said coating head is positioned such that said doctor edge surface is pressed onto said support;
- wherein blade thickness of said doctor edge surface in a direction of running of said support has a rate of variation not exceeding 5% in a direction of width of said support.
Dependencies are inferred from the claim text.