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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.:

US 12680201 B1

PDFFull Text
Date of Patent:
Jul. 14, 2026

Filed:

Sep. 22, 2023

Method for producing profiled fibers having low broken filament rate by polyester fdy process

Applicant:

Jiangsu Hengli Chemical Fibre Co., Ltd., Suzhou, CN;

Inventors:

Jianguang Zhang, Suzhou, CN;

Yonglin Zou, Suzhou, CN;

Xinzhao Hu, Suzhou, CN;

Lixin Yin, Suzhou, CN;

Shunjun Yang, Suzhou, CN;

Chengqian Zhu, Suzhou, CN;

Yu Li, Suzhou, CN;

Shouzuo Liu, Suzhou, CN;

Assignee:

JIANGSU HENGLI CHEMICAL FIBRE CO., LTD., Suzhou, CN;

Attorney:

Bayramoglu Law Offices LLC

Primary Examiner:

Mathieu D Vargot

Int. Cl.
CPC ...
D01H 13/30 (2006.01); D01H 13/02 (2006.01); D01H 13/04 (2006.01); D01H 13/32 (2006.01);
U.S. Cl.
CPC ...
D01H 13/306 (2013.01); D01H 13/02 (2013.01); D01H 13/04 (2013.01); D01H 13/32 (2013.01);
Abstract

A method for preparing profiled fibers with low lousiness rate by a polyester FDY process is provided, when preparing profiled fibers by the FDY process, during the operation of a yarn path, the horizontal and longitudinal positions of wire guide ceramic pieces on the pre-entangling wire guide frame are adjusted to maintain vertical alignment of the filament bundle in the pre-entangling device and achieve optimal jitter effect, to prepare profiled fibers with a low lousiness rate; when the profiled fibers are triangular profiled fibers, the lousiness rate is 0.35-0.65%; when the profiled fibers are trilobal profiled fibers, the lousiness rate is 0.85-1.25%; when the profiled fibers are flat profiled fibers, the lousiness rate is 0.5-0.85%.

Find Patent Forward Citations

Zhang, Jianguang. (2026). Method for producing profiled fibers having low broken filament rate by polyester fdy process (U.S. Patent No. 12680201). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12680201

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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