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AssigneesToyo Kohan Co., Ltd., Toyo Seikan Kaisha, Ltd.
InventorsAkira Kobayashi, Kouji Yamada, Yuji Funagi, Narimasa Maida, Hiroshi Inazawa, Takuji Nakamura, Noriaki Kaguma
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The present invention provides a method for trimming a resin film which can recycle lug portions of the resin film after trimming, can easily trim the resin film even when the resin film is made of resin which becomes fragile by cooling, and enhance the use efficiency of a laminated sheet by making resin coated portions disposed at both sides of the laminated sheet thin. At the time of coating molten resin at least on one surface of a substrate to form a resin film after making the molten resin pass between coating rolls, the lug portions of the resin film are trimmed before the lug portions of the resin film are cooled.
A method for trimming a resin film wherein, at the time of coating molten resin on at least one surface of a substrate to form a resin film after allowing the substrate and the molten resin to pass through a nip portion between resilient coating rolls, the nip pressure resulting from the resilient force of the coating rolls at edge portions of the substrate creates a removing force which removes lug portions of the film from the edge of the substrate.
Dependencies are inferred from the claim text.