Coating processes – With stretching or tensioning – Running lengths
Patent
1994-12-20
1997-01-28
Bareford, Katherine
Coating processes
With stretching or tensioning
Running lengths
427130, 427131, 427209, 427356, 118 68, 118410, 118411, B05D 312, B05D 302, B05C 502
Patent
active
055976158
ABSTRACT:
An extrusion coating head which is disposed between a drier for performing a non-contact drying operation and a support roll located at the upstream side of and nearest to the drier is designed so that a back edge surface thereof is designed to have an round surface having a radius of curvature R which satisfies the following inequality: 3 mm.ltoreq.R.ltoreq.30 mm, and the entire R-surface portion of the back edge of the coating head is located at a position higher than a tangential line drawn to the front edge surface at a slit-side edge point of the front edge so as to project toward the web side. The running web is coated with the coating liquid by the extrusion-type coating head, and then dried through a non-contact drying process.
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patent: 4911951 (1990-03-01), Ogawa et al.
patent: 5173119 (1992-12-01), Watanabe et al.
patent: 5206056 (1993-04-01), Shibata et al.
English Abstract of Japanese Patent 57-84771; May 27, 1982; "Coater"; Yasunori Tanaka et al.
English Abstract of Japanese Patent 58-109162; Jun. 29, 1983; "Coating Device"; Yasunori Tanaka.
English Abstract of Japanese Patent 60-238179; Nov. 27, 1985; "Coating Apparatus"; Tokuo Shibata, et al.
English Abstract of Japanese Patent 62-244469; Oct. 24, 1987; "Apparatus for Absorbing Vibration of Web"; Tokuo Shibata, et al.
English Abstract of Japanese Patent 62-247861; Oct. 28, 1987; "Coating Method"; Tokuo Shibata, et al.
Katai Kazuo
Onozawa Katsumi
Shimizu Yutaka
Tsunoda Eizo
Watanabe Eiichi
Bareford Katherine
TDK Corporation
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