LAMINATE FOR TUBE AND TUBE CONTAINER
PROBLEM TO BE SOLVED: To provide a laminate for a tube which can suppress cracking of an aluminum layer only by the laminate for a tube without depending on external means, such as the separate addition of a lubricant, when ultrasonic sealing is performed for forming a tail part of a tube container....
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a laminate for a tube which can suppress cracking of an aluminum layer only by the laminate for a tube without depending on external means, such as the separate addition of a lubricant, when ultrasonic sealing is performed for forming a tail part of a tube container.SOLUTION: In a laminate for a tube, an outer layer, an aluminum foil layer, and an inner layer are laminated in this order. The outer layer forms an outer surface of the laminate for a tube. The inner layer forms an inner surface of the laminate for a tube. The total value of the thickness of the outer layer and the thickness of the aluminum foil layer is equal to or smaller than the thickness of the inner layer. The coefficient of kinetic friction between the inner surfaces is 0.1 or more and less than 0.6.
【課題】チューブ容器の尻部を形成するために超音波シールを行なうときに、滑剤の別添などの外部手段に頼ることなく、チューブ用積層体のみでアルミニウム層のクラックを抑制できるチューブ用積層体の提供。【解決手段】外層、アルミニウム箔層、及び内層が順に積層されているチューブ用積層体であって、前記外層は、前記チューブ用積層体の外面を形成しており、前記内層は、前記チューブ用積層体の内面を形成しており、前記外層の厚さと前記アルミニウム箔層の厚さの合計値が、前記内層の厚さ以下であり、かつ前記内面同士の間の動摩擦係数が、0.1以上かつ0.6未満である、チューブ用積層体。【選択図】図1 |
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