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US 9,427,767 B2Granted
Apparatus for applying coating liquid and coating bar
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsShuzo Tsuchida, Isao Muragisi, Akihiro Horikawa
Life of this patent
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Abstract
A coating bar 1 in a coating apparatus includes grooves 2 that are formed, on the surface of a cylindrical shaft, from a contact point between the coating bar 1 and a substrate 3 in a traveling direction and a direction opposite to the traveling direction, and are arranged in the width direction of the shaft. Thus, a uniform film can be stably applied to the curved or wavy substrate 3 having high rigidity.
Claims10
A coating bar comprising a cylindrical body drawn to spread a coating liquid in a scraping manner on a substrate to be coated with a thin film,
- wherein the coating bar comprises a plurality of grooves extending linearly in a circumferential direction on a surface of the cylindrical body over a coating width,
- each of the grooves is shorter than a circumference of the cylindrical body in cross section, and a groove non-forming region is between one end of the groove and another end of the groove, and
- each of the grooves extends in a direction orthogonal to a longitudinal axis of the cylindrical body along the entire length of the grooves.
Dependencies are inferred from the claim text.