| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a packaging material enabling long-term preservation of articles to be housed such as various foods, medicines or the like. SOLUTION: A multilayered material consists of a heat seal layer (layer A) comprising an oxygen permeable thermoplastic resin, an oxygen absorbing later (layer B) wherein a deoxidant is dispersed in a thermoplastic resin layer, and a gas barrier multilayered resin layer (layer C) including a printing layer (layer P) consisting of a resin in which a colorant is dispersed and a gas barrier resin layer (layer G) consisting of a gas barrier thermoplastic resin, and is characterized by that the printing layer (layer P) is present between the layers of the gas barrier multilayered resin layer (layer C) to be prevented from the direct contact with the oxygen absorbing layer (layer B). By this constitution, ply separation is not generated even under a heat treatment condition and good appearance is held even during long-term preservation.</p> |
