PACKAGING CONTAINER

PROBLEM TO BE SOLVED: To provide a packaging container excellent in printability and design without any noticeable unevenness derived from isolated cells, realized by controlling the size and variation of isolated cells in a foam resin layer.SOLUTION: A packaging container is, in part or in whole, made of a sheet-like foam laminate 100 comprising a foam resin layer 60 and a base material 20, and having a thickness in the Z direction and a plane extending in the X and Y directions orthogonal thereto. The foam resin layer 60 includes isolated cells 61. When 10 isolated cells 61 are selected in descending order of the major axis of the isolated cells 61 from those in a Z direction sectional view of the foam resin layer 60 for an area of the width 5 mm in the X, Y directions of said plane, an average value of major axes of the 10 isolated cells is to be 100 μm or greater and less than 740 μm, and a variation coefficient of the major direction of 10 isolated cells is to be 40% or less.SELECTED DRAWING: Figure 1 【課題】発泡樹脂層の独立気泡の大きさとバラツキを制御することによって、気泡由来の凹凸が目立たず、印刷適性や意匠性に優れる包装容器を提供する。【解決手段】この包装容器は、発泡樹脂層６０と基材２０とを備え、厚さＺ方向とこれに垂直な平面ＸＹ方向とを有するシート状の発泡積層体１００によって一部又は全部が構成されている。発泡樹脂層６０は独立気泡６１を有しており、発泡樹脂層６０の厚さＺ方向の断面視における、前記平面ＸＹ方向の幅５ｍｍ内の領域において、独立気泡６１の長径が大きい順に独立気泡６１を１０個選択した場合に、該１０個の長径の平均値が１００μｍ以上７４０μｍ未満であり、かつ、該１０個の長径の変動係数が４０％以下である。【選択図】図１