Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1990-09-28
1992-06-02
Padgett, Marianne
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 35, 427 541, 427130, 427131, 427284, B05D 306, B05D 512, B05D 500
Patent
active
051185253
ABSTRACT:
A method for manufacturing a magnetic recording medium in which shavings are not generated when an easily bent thin web comes into contact with contact members of a coating head, a conveying system, rolls in calendaring treatment, etc., in which, during coating, a coating having an even coating thickness and good surface properties is formed, and in which a coating liquid does not spread in such a manner as to cause defects such as coating unevenness and the like. In accordance with the inventive method, to manufacture a magnetic recording medium in which a coating liquid is applied onto a surface of a continuously running flexible support except widthwise edge portions of the support while a slot top end of a coating head is pressed against the surface of the flexible support, a material selected from a polymer film, a carbon dispersing liquid, a fatty-acid lubricant, and a fluorine-group lubricant is applied onto at least portions of the flexible support corresponding to the edge portions. The material applied to the edge portions of the flexible support is dried to thereby form a coating at the edge portions of the flexible support. The coating liquid is then applied onto the surface of the flexible support.
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Chino Naoyoshi
Ueha Hiromu
Fuji Photo Film Co. , Ltd.
Padgett Marianne
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