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: 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 a total thickness of the magnetic tape is less than or equal to 4.80 ?m; at least the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide; 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 magnetic layer side of the magnetic tape is greater than or equal to 45 atom %.

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 a total thickness of the magnetic tape is less than or equal to 4.80 ?m; at least the magnetic layer comprises one or more components selected from the group consisting of a fatty acid and a fatty acid amide; 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 magnetic layer side of the magnetic tape is greater than or equal to 45 atom %.

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: The present invention provides is a thin film analyzing method which can be applied to various fields, and which makes it possible to detect and analyze in a simple manner, with high precision, a distribution of a specific component in a thin film formed on a support. The method for analyzing a constituent of a thin film comprises a cutting step of cutting the thin film obliquely, and an analyzing step of analyzing a specific component in the cut section of the thin film. In this cutting step, the thin film is preferably cut with a microtome to which a cutting edge made of glass is fitted knife made of glass. The analysis of the distribution of the specific component in the cut section is suitably analyzed by TOF-SIMS or ?-ESCA. The method is particularly useful for analyzing an image recording layer of a planographic printing plate precursor which comprises a water-insoluble and alkali-soluble resin, an infrared ray absorber, and a colorant.

Abstract: The present invention provides is a thin film analyzing method which can be applied to various fields, and which makes it possible to detect and analyze in a simple manner, with high precision, a distribution of a specific component in a thin film formed on a support. The method for analyzing a constituent of a thin film comprises a cutting step of cutting the thin film obliquely, and an analyzing step of analyzing a specific component in the cut section of the thin film. In this cutting step, the thin film is preferably cut with a microtome to which a cutting edge made of glass is fitted knife made of glass. The analysis of the distribution of the specific component in the cut section is suitably analyzed by TOF-SIMS or &mgr;-ESCA. The method is particularly useful for analyzing an image recording layer of a planographic printing plate precursor which comprises a water-insoluble and alkali-soluble resin, an infrared ray absorber, and a colorant.