D - Textiles – Paper – 02 – G
Patent
D - Textiles, Paper
02
G
D02G 1/12 (2006.01) D04H 1/00 (2006.01)
Patent
CA 2366302
A method is disclosed for producing polyester fibers having uniform primary and secondary crimps. The method includes the steps of advancing fibers into a stuffer box having an upper doctor blade and a lower doctor blade, positioning the upper doctor blade and the lower doctor blade such that the doctor blade gap is broad enough to permit the formation of secondary crimps and yet is narrow enough to maintain primary and secondary crimp uniformity, and then applying a longitudinal force against the advancing fibers to impart uniform primary and secondary crimps.
La présente invention concerne un procédé de production de fibres de polyester présentant une frisure primaire et une frisure secondaire qui sont uniformes. Le procédé consiste à faire passer les fibres dans une boîte frisante à racle supérieure et racle inférieure. Le procédé consiste ensuite à positionner la racle supérieure et la racle inférieure de façon que l'écartement entre elles suffise à permettre la formation d'une frisure secondaire, tout en restant suffisamment étroit pour conserver l'uniformité de la frisure primaire et de la frisure secondaire. Le procédé consiste enfin à appliquer une force longitudinale s'opposant à l'avancement des fibres pour leur conférer la frisure primaire et la frisure secondaire.
Farley Edwin Starke Jr.
Poston Mendel Lyde Jr.
Raskin Vladimir Y.
Travelute Frederick Lee III
Sim & Mcburney
Wellman Inc.
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