COATING APPARATUS AND METHOD FOR PRODUCING OPTICAL FILM USING THE SAME

Title:

COATING APPARATUS AND METHOD FOR PRODUCING OPTICAL FILM USING THE SAME

Document Type and Number:

Japanese Patent JP2011143348

Kind Code:

A

Abstract:

To inhibit liquid feed pulsation generated in the upstream of an orifice, efficiently to control minute pulsation in the downstream and also not to generate a bubble storage and liquid stagnation in a simple structure.

In a coating apparatus 10 coating a web W with a coating liquid 14 by feeding the coating liquid 14 to the pocket 20 of a slot die 12 through a pipe 42 and discharging it from a slot tip end 20a, and by forming a coating liquid bead in a clearance between the slot tip end 20a and the continuously moving web W, an orifice 56A is formed only at an end position in a direction of the pipe diameter, a tapering-shaped inlet taper flow passage 56B leading to the orifice 56A is formed on the inlet side of the orifice 56A, and a club-shaped outlet taper flow passage 56C extending from the orifice 56A is formed on the outlet side of the orifice 56A.

Inventors:

YASUDA KENICHI
SHIMIZU RYOSUKE
OKI KAZUHIRO

Application Number:

JP2010006166A

Publication Date:

July 28, 2011

Filing Date:

January 14, 2010

Export Citation:

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Assignee:

FUJIFILM CORP

International Classes:

B05C11/10; B05C5/02; B05D1/26; F04B11/00; F16L55/00; F16L55/04; G02B1/11; G02B1/111; G02B5/30

Domestic Patent References:

JP2007245024A	2007-09-27
JP2008075537A	2008-04-03
JPH06281081A	1994-10-07
JPH08261097A	1996-10-08
JPS6095298A	1985-05-28
JP4995167B2	2012-08-08

Attorney, Agent or Firm:

Kenzo Matsuura

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