ORIENTATION-DEGREE IN-LINE MEASURING DEVICE FOR FILM-SHEET

摘要

PURPOSE:To conduct the optimizing control of the conditions, etc., of molding, quality control, breaking prediction, the detection of a foreign matter, etc., by measuring the degree of orientation in an in-line and monitoring the degree of orientation when the uniform degree of orientation is not acquired by the conditions of orientation, etc., in the orienting process of a film-sheet or because there is the trouble of breaking by the generation of stress concentration, etc., by the mixing of the foreign matter, etc. CONSTITUTION:In a film-sheet production unit, orientation meters 5, 7, through which infrared rays polarized in the MD and TD directions are transmitted, are disposed to a travelling film-sheet and the infrared two-tone of the film-sheet is measured in an in-line.