PACKAGING FILM HAVING RIGIDITY AND DIMENSIONAL STABILITY

摘要

PROBLEM TO BE SOLVED: To provide a sealant film which is hardly broken, has high flexibility and achieves both higher rigidity and flexibility by enhancing the dimensional stability during heat sealing in forming a sealant film into a bag in a sealant film.SOLUTION: There is provided a sealant film composed of a heat seal layer and a multilayered structure layer laminated on one surface of the heat seal layer, wherein the multilayered structure layer has at least a layer of a multi-layer constitution in which high density material layers and low density material layers are alternately arranged.SELECTED DRAWING: Figure 1