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:
Feb. 04, 1986
Filed:
Oct. 22, 1984
Applicant:
Inventors:
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D02G / ;
U.S. Cl.
CPC ...
57284 ;
Abstract
A method for producing a textured polyester yarn, especially in an in-draw texturing system, in which starting yarn is processed by means of a non-touch type heater under a heater temperature in a range of from 350.degree. C. to 800.degree. C. and a shorter processing time in a range of from 0.04 second to 0.12 second. The dyeing evenness of the fabric made from the resultant yarn is improved because the dyeability of the yarn is almost constant despite fluctuation of the heater temperature. A belt-type twister is preferably utilized for false-twisting a yarn rather than a disc type.