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:
Mar. 08, 1977
Filed:
Jun. 24, 1975
Toyo Boseki Kabushiki Kaisha, Osaka, JA;
Abstract
A method for manufacturing a fancy textured yarn provided with slubs. In this manufacturing method, at least one thermoplastic multifilament yarn A is supplied to a twisting zone of a false twisting apparatus provided with a heater disposed at an upstream position to a false twisting element and at least one thermoplastic multifilament yarn B is supplied to the above-mentioned twisting zone so as to combine with the yarn A by way of a yarn guide which is reciprocally displaced along the yarn passage of the yarn A. The combined yarn is heat-set by the heater and then untwisted after passing through the false twisting element. Thereafter the untwisted yarn provided with numerous stable slubs composed of the yarn B, formed by wrapping the yarn B about the yarn A, is taken up to a yarn package. In the above-mentioned processing, the displacing speed of the yarn guide toward the false twisting element is controlled in a range between less than one time and at least 0.5 times the running speed of the yarn A.