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Valéron Strength Films produces a flexible cross laminated high strength polyethylene film available in thicknesses ranging from 60 to 265 micrometres. It is a registered trademark of ''Valéron Strength Films'' and has been produced since 1965. Valéron is a business unit of ITW Corporation, a global manufacturing company headquartered in Chicago, IL. Valéron film is produced at manufacturing sites in Houston, TX and Essen, Belgium. ==Manufacturing process== Valéron film is made with a 3-step production process: *The first step provides for maximum molecular orientation in the machine direction. The result is a structure with high mechanical characteristics in the machine direction but normal characteristics in the cross direction. As such structures (also called unbalanced structures) are difficult to convert in industrial processes, two additional steps are required to complete the production process. *A second spiral cutting step will shift the molecular orientation from the machine direction into a direction under an angle of 45°. * The third and final step laminates a +45° structure with a -45° structure. As such a cross-pattern is created throughout the entire structure of the flexible film. We call such a structure a Valéron cross-laminated film. Cross-laminated because of the cross-pattern that is visibly present in the entire film.〔Information provided by Clint Beutelschies, VP Sales & Marketing, Valeron Strength Films〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Valéron」の詳細全文を読む スポンサード リンク
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