PRINTING FILM

• Main Authors: TOMINAGA TAKASHI, ORIHARA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• Subjects: LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; TRANSPORTING

To provide a printing film capable of reducing deterioration due to an effect of a photocatalytic reaction of ultraviolet light and a titanium oxide, that is, a printing film having an excellent weathering resistance.SOLUTION: A printing film 4 includes an intermediate layer 2, a surface skin layer 1 formed on one side of the intermediate layer 2, and a rear face skin layer 3 formed on the other side of the intermediate layer 2. The intermediate layer 2 contains a titanium oxide. Each layer of the surface skin layer 1 and the rear face skin layer 3 contains no titanium oxide. A ratio of layer thickness of the surface skin layer 1, the intermediate layer 2 and the rear face skin layer 3 (the surface skin layer 1/the intermediate layer 2/the rear face skin layer 3) is within a range of 1/4/1 to 1/10/1.SELECTED DRAWING: Figure 1 【課題】紫外線と酸化チタンとの光触媒反応の影響による劣化を低減することが可能な印刷用フィルム、即ち優れた耐候性を備えた印刷用フィルムを提供する。【解決手段】印刷用フィルム４は、中間層２と、中間層２の一方の面に形成された表面スキン層１と、中間層２の他方の面に形成された裏面スキン層３と、を備え、中間層２は酸化チタンを含み、表面スキン層１と裏面スキン層３の各層は酸化チタンを含まず、表面スキン層１と中間層２と裏面スキン層３の各層厚の比（表面スキン層１／中間層２／裏面スキン層３）は、１／４／１から１／１０／１の範囲内である。【選択図】図１