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MAGNETIC TAPE AND METHOD OF MANUFACTURING THE SAME

  • US 20170032812A1
  • Filed: 07/25/2016
  • Published: 02/02/2017
  • Est. Priority Date: 07/28/2015
  • Status: Active Grant
First Claim
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1. A magnetic tape,which comprises a magnetic layer comprising ferromagnetic powder and binder on one surface of a nonmagnetic support, and comprises a backcoat layer comprising nonmagnetic powder and binder on the other surface of the nonmagnetic support,wherein the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide;

  • the backcoat layer has a thickness of less than or equal to 0.30 μ

    m and comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide;

    a C—

    H derived carbon, C, concentration calculated from a C—

    H peak area ratio in a C1s spectrum obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on a surface on the magnetic layer side of the magnetic tape, referred to as a magnetic layer side C—

    H derived C concentration, is greater than or equal to 45 atom %; and

    a C—

    H derived carbon, C, concentration calculated from a C—

    H peak area ratio in a C1s spectrum obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on a surface on the backcoat layer side of the magnetic tape, referred to as a backcoat layer side C—

    H derived C concentration, is greater than or equal to 35 atom %.

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