MAGNETIC TAPE AND METHOD OF MANUFACTURING THE SAME,申请号US201615280195-传众专利搜索

MAGNETIC TAPE AND METHOD OF MANUFACTURING THE SAME

申请公布号：US2017092315(A1)

申请号：US201615280195

申请日期：2016.09.29

申请公布日期：2017.03.30

申请人：

FUJIFILM Corporation

发明人：OZAWA Eiki;KASADA Norihito;OYANAGI Masahito;TADA Toshio

分类号：G11B5/725;G11B5/842;G11B5/65

主分类号：G11B5/725

地址：Tokyo JP

摘要：The magnetic tape has a magnetic layer containing ferromagnetic powder and binder on a nonmagnetic support, wherein the magnetic layer contains a fatty acid ester, the full width at half maximum of the spacing distribution as measured by optical interferometry on the magnetic layer side surface of the magnetic tape before vacuum heating the magnetic tape is greater than 0 nm but less than or equal to 5.0 nm, the full width at half maximum of the spacing distribution after vacuum heating the magnetic tape is greater than 0 nm but less than or equal to 5.0 nm, and the difference between the spacing Safter after vacuum heating the magnetic tape and the spacing Sbefore before vacuum heating the magnetic tape, Safter−Sbefore, is greater than 0 nm but less than or equal to 8.0 nm.

主权项：1. A magnetic tape, which comprises a magnetic layer comprising ferromagnetic powder and binder on a nonmagnetic support, wherein a magnetic layer comprises a fatty acid ester; a full width at half maximum of a spacing distribution as measured by optical interferometry on a magnetic layer side surface of the magnetic tape before vacuum heating the magnetic tape is greater than 0 nm but less than or equal to 5.0 nm; a full width at half maximum of a spacing distribution as measured by optical interferometry on a magnetic layer side surface of the magnetic tape after vacuum heating the magnetic tape is greater than 0 nm but less than or equal to 5.0 nm; and a difference between a spacing Safter as measured by optical interferometry on a magnetic layer side surface of the magnetic tape after vacuum heating the magnetic tape and a spacing Sbefore as measured by optical interferometry on a magnetic layer side surface of the magnetic tape before vacuum heating the magnetic tape, Safter−Sbefore, is greater than 0 nm but less than or equal to 8.0 nm.