The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2019
Filed:
Oct. 07, 2015
Oerlikon Textile Gmbh & Co. KG, Remscheid, DE;
Hansjörg Meise, Leichlingen, DE;
Oerlikon Textile GmbH & Co. KG, Remscheid, DE;
Abstract
Techniques produce a multifilament thread from a polyamide melt. In this case, freshly extruded filaments are cooled and combined to form a thread. In order, in addition to low boil-off shrinkage, to achieve high strength, the thread is taken off at a take-off rate in the range from 3600 m/min to 4600 m/min, preferably from 4000 m/min to 4400 m/min, by a first godet group having unheated guide casings. Subsequently, the thread is fully drawn between the first godet group and a second godet group having heated guide casings. After drawing, the thread is heated to a thread temperature in the range from 140° C. to 200° C. under tension at the guide casings of the second godet group and relaxed. After relaxing, the thread runs in a contact-free manner through at least one free cooling section between the second godet group and a third godet group having unheated guide casings.