TWI798880B
This film roll manufacturing method includes: a stretching step for stretching an acrylic resin film F at least in a flow direction MD; a first winding step for winding the stretched film F on a first winding core W1; and a second winding step, following the first winding step, for winding the film...
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Main Authors | , , |
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Format | Patent |
Language | Chinese |
Published |
11.04.2023
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Subjects | |
Online Access | Get full text |
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Summary: | This film roll manufacturing method includes: a stretching step for stretching an acrylic resin film F at least in a flow direction MD; a first winding step for winding the stretched film F on a first winding core W1; and a second winding step, following the first winding step, for winding the film F that has been wound around the first winding core W1 on a second winding core W2. The second winding step is initiated after the shrinkage rate of the film F in the flow direction MD reaches at least 0.015%, and is ended while said shrinkage rate is no greater than 0.035%. |
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Bibliography: | Application Number: TW202110138574 |