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:
Apr. 03, 2007
Filed:
Jul. 26, 2003
Yun-jo Kim, Kyungsangbuk-do, KR;
Su-jin Lee, Kyungsangbuk-do, KR;
Yun-Jo Kim, Kyungsangbuk-do, KR;
Su-Jin Lee, Kyungsangbuk-do, KR;
Kolon Industries, Inc., Kwacheon, KR;
Abstract
The present invention discloses a high strength low shrinkage polyester drawn yarn used as industrial yarns and a process or producing the same. The strength low shrinkage polyester drawn yarn has a thermal relaxation stress change ratio of 5 to 100% and a thermal relaxation stress area ratio of 50 to 140% on a thermal relaxation and shrinkage stress curve with a final temperature set to 170% C. The process for producing a high strength low shrinkage polyester drawn yam by a direct spin draw (DSD) process in which a quenching delay region I is mounted, wherein the high strength low shrinkage polyester drawn yarn is produced in such methods that a spinning oil is attached to the yarn being spun with an oiling apparatusmounted at the position 500 to 1,500 mm below from the lower bottom surface of the insulating board, the relaxation stress of the yarn is controlled with one or tow tension guidesmounted between Godet rollers of a relaxation region III, or both oiling apparatusand tension guidesare mounted.