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:
Jan. 12, 1999
Filed:
Sep. 22, 1997
Sunkyong Industries Limited, Kyunggi-do, KR;
Abstract
A different shrinkage mixed yarn is produced using core and effect yarns, which are selected from the same or different polymer and have different thermal shrinkage percentages. The core and effect yarns, which are spun from different spinnerets of a spin draw spinning machine, are doubled and interlaced into a mixed yarn prior to being taken up by a take-up machine, with the core yarn passing through a direct drawing yarn passage and the effect yarn passing through a bypassed yarn passage. The core yarn is drawn and thermally fixed due to a difference in the rotating speed between first and second godet rollers, while the effect yarn is drafted due to the rotating speed of the take-up machine so that the effect yarn has properties of a POY.