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AssigneeFuji Photo Film Co., Ltd.
InventorsShinsuke Takahashi, Yoshiro Kitsukawa
Estimating the term…
A magnetic recording medium which enables not only getting rid of trouble due to scrapes occurring in a selvage portion of a web, but also preventing blocking trouble from occurring in heat treatment during post processing and a method of producing the same. A release coat is formed on a back surface of the web at least at portions in contact with overcoatedly primed portions so that the overcoatedly primed portions will not stick to the back surface of the web, whereby the overcoatedly primed portions can prevent scrapes from occurring in selvage portions of the web during the coating of the web with a magnetic fluid, in addition, the overcoatedly primed portions will not stick to the back surface of the web, due to the release coat, during the heat treatment of the magnetic recording medium produced into a roll, whereby blocking trouble can also be prevented from occurring.
A method of producing a magnetic recording medium, comprising a coating process in which a magnetic coat is formed by coating a surface of a continuously running web with a magnetic fluid ejected to an edge surface of a coating head through slits thereof, leaving edges in a width direction of the surface of the web uncoated, while relatively pressing the surface of the web and the edge surface of the coating head against each other and a primer coat is formed on the surface of the web prior to forming the magnetic coat on the surface of the web,
A magnetic recording medium, comprising:
Dependencies are inferred from the claim text.