Anti-wrinkle device
A wrinkle-removing and sheet-material technology, which is applied in the direction of instruments, electrical components, circuits, etc., can solve the problems of wrinkle removal and achieve the effect of wrinkle removal
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[0011] Below, based on Figure 1 ~ Figure 3 , a wrinkle removing device for a sheet W according to an embodiment of the present invention will be described.
[0012] The sheet W is a synthetic resin film, for example, a separator used in a lithium ion battery, and is made of polypropylene, polyethylene, or the like. The width of the sheet W is, for example, 300 mm to 500 mm.
[0013] The wrinkle removal device of the present embodiment is incorporated in a stretching system 10 that stretches a long sheet W such as an optical film while heating it in the longitudinal direction.
[0014] like figure 1 As shown, the stretching system 10 is composed of a sheet W unwinding device 12 , a longitudinal stretching device 14 , a preheating device 16 , a heating longitudinal stretching device 18 , a fixing device 20 , a cooling device 22 and a winding device 24 . The stretching system 10 stretches the sheet W in the longitudinal direction while heating the sheet W while increasing the...
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