| abstract |
PROBLEM TO BE SOLVED: To greatly reduce the amount of printing ink used, reduce the manufacturing cost, improve the stability of printing quality, enable inspection of the contents, inspection of foreign matter with a metal detector, and cooking with a microwave oven, Blocks or reduces odor components that migrate from printing ink to improve the shelf life and flavor of the contents, has excellent printability, does not cause delamination of packaging materials, and has good opening properties when opened Provide packaging materials. SOLUTION: Between a printing layer 2 and an inner resin layer 5, a colored resin layer 4 made of a resin composition containing a colorant having a total light transmittance of 10 to 50% is included, and a metal foil is included. The packaging material 11 is constituted by a laminated film which is not present. As the preferred colored resin layer 4, a resin composition containing a colorant mainly composed of titanium oxide having a lightness (L value) of 70 to 95 is used. [Selection] Figure 1 |