公开(公告)号：US20160189740A1

公开(公告)日：2016-06-30

申请号：US14978834

申请日：2015-12-22

Applicant: FUJIFILM Corporation

Inventor： Masahito OYANAGI ,  Norihito KASADA ,  Toshio TADA ,  Kazuyuki KITADA

IPC: G11B5/71 ,  G11B5/842 ,  G11B5/78 ,  G11B5/84 ,  G11B5/73 ,  G11B5/738

CPC classification number: G11B5/71 ,  G11B5/70 ,  G11B5/7305 ,  G11B5/78 ,  G11B5/8404 ,  G11B5/842

Abstract: Provided is a magnetic tape, which comprises, on a nonmagnetic support, a nonmagnetic layer comprising nonmagnetic powder and binder, and on the nonmagnetic layer, a magnetic layer comprising ferromagnetic powder and binder; wherein at least the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide; a quantity of components selected from the group consisting of a fatty acid and a fatty acid amide per unit area of the magnetic tape among components that are extracted from a surface on the magnetic layer side of the magnetic tape is less than or equal to 15.0 mg/m2, and a concentration of carbon, C, that is obtained by X-ray photoelectron spectroscopy conducted at a photoelectron take-off angle of 10 degrees on the surface on the magnetic layer side of the magnetic tape is greater than or equal to 50 atom %.

Abstract translation: 提供了一种磁带，其在非磁性载体上包括非磁性粉末和粘合剂的非磁性层，并且在非磁性层上包括含铁磁粉末和粘合剂的磁性层; 其中至少所述磁性层包含一种或多种选自脂肪酸和脂肪酸酰胺的组分; 在从磁带的磁性层一侧的表面提取的成分中，选自由磁带的每单位面积的脂肪酸和脂肪酸酰胺组成的组中的成分的量少于或等于15.0mg / m 2，通过在磁带的磁性层一侧的表面上以10度的光电子起飞角度进行的通过X射线光电子能谱得到的碳浓度C大于或等于50 原子％。