Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kanebo Ltd
Nippon Ester Co Ltd
Original Assignee
Kanebo Ltd
Nippon Ester Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kanebo Ltd, Nippon Ester Co LtdfiledCriticalKanebo Ltd
Priority to JP6487776ApriorityCriticalpatent/JPS52148224A/en
Publication of JPS52148224ApublicationCriticalpatent/JPS52148224A/en
PURPOSE: To provide polyester staple fibers inducing extremely reduced white powder in spinning process by limiting the distribution factor and the average of the optical birefringence and the crystallinity of the fibers within specific regions.