公开(公告)号：US20150298879A1

公开(公告)日：2015-10-22

申请号：US14646287

申请日：2013-11-27

Applicant: UNITIKA LTD.

Inventor： Kazunari Nanjo ,  Toshiya Hamada ,  Masami Matsumoto ,  Nobuhiro Tanaka

IPC: B65D75/36 ,  B32B27/34 ,  B32B15/088 ,  B65D65/38 ,  B32B15/20

CPC classification number: B65D75/36 ,  B32B15/088 ,  B32B15/20 ,  B32B27/34 ,  B32B2307/31 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/7242 ,  B32B2307/7265 ,  B32B2307/738 ,  B32B2439/40 ,  B32B2439/80 ,  B65D65/38

Abstract: The packaging material for cold forming of the present invention includes a polyamide resin film biaxially stretched by a tenter method and an aluminum foil provided on one surface of the polyamide resin film and integrated with the polyamide resin film. The distortion of the polyamide resin film caused by applying thereto a tension corresponding to the tensile break tension of the aluminum foil is 20% or more and 45% or less. Herewith, it is possible to provide a packaging material for cold forming excellent in cold formability, capable of suppressing the breakage of the aluminum foil during the cold forming in the case where the polyamide resin film biaxially stretched by the tenter method is used.

Abstract translation: 本发明的冷成型用包装材料包括通过拉幅机法双轴拉伸的聚酰胺树脂膜和设置在聚酰胺树脂膜的一个表面上并与聚酰胺树脂膜一体化的铝箔。 通过施加与铝箔的拉伸断裂张力相对应的张力引起的聚酰胺树脂膜的变形为20％以上且45％以下。 因此，可以提供一种冷成型性优异的冷成型包装材料，其能够在使用通过拉幅机双向拉伸的聚酰胺树脂膜的情况下，抑制冷成型时铝箔的断裂。