WRAPPING MATERIAL FOR VACUUM THERMAL INSULATION MATERIALS, VACUUM THERMAL INSULATION MATERIAL, AND ARTICLE WITH VACUUM THERMAL INSULATION MATERIAL

The present disclosure provides a wrapping material for vacuum thermal insulation materials, which comprises a thermally weldable film and a gas barrier film, and wherein: the gas barrier film comprises a base material and an aluminum metal film that is formed on one surface of the base material; and the aluminum metal film satisfies formula (1) and formula (2). (1): 1.0 ∗ 10-3 ≤ (IA/IB) / T ≤ 3.5 ∗ 10-3 (2): (A/B) / T ≥ 3.8 ∗ 10-3 (In formula (1) and formula (2), IA represents the peak intensity (cps) of a diffraction peak that is positioned around 2θ = 38.5° in an X-ray diffraction measurement of the aluminum metal film with use of a CuKα ray; IB represents the peak intensity (cps) of a diffraction peak that is positioned around 2θ = 44.6° in an X-ray diffraction measurement of an aluminum metal foil with use of a CuKα ray; A represents the peak intensity (kcps) of elemental aluminum of the aluminum metal film as determined by X ray fluorescence analysis; B represents the peak intensity (kcps) of elemental aluminum of the aluminum metal foil as determined by X ray fluorescence analysis; and T represents the thickness (nm) of the aluminum metal film.