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:
Sep. 16, 2003
Filed:
May. 08, 2002
Applicant:
Inventors:
Tomoo Mizumura, Matsuyama, JP;
Nobuyoshi Miyasaka, Ibaraki, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F 6/00 ; D01F 6/62 ;
U.S. Cl.
CPC ...
D01F 6/00 ; D01F 6/62 ;
Abstract
A thick and thin polyester multifilament yarn having an excellent natural fiber yarn-like hand, a dry touch and spun yarn-like appearance includes a plurality of individual thick and thin polyester multifilaments varying in thickness along the longitudinal direction thereof and exhibits a spectrum having a first peak (Pmax ) of a coefficient of variation in yarn thickness of 4 to 10 cm, a second peak (Pmax ) of the yarn thickness variation coefficient of 50 to 150 cm and a ratio (Pmax /Pmax ) of 1.5 to 4.0, measured by the normal mode test method using the Uster evenness tester.