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:
Oct. 26, 1982
Filed:
Jul. 12, 1979
Applicant:
Inventors:
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D05C / ; D02G / ; D02G / ;
U.S. Cl.
CPC ...
112410 ; 57205 ; 57247 ; 57251 ; 57284 ; 57290 ; 57293 ; 57297 ;
Abstract
A pile yarn for a carpet and a cut pile carpet. A bulky yarn of a polyamide multifilament is fed to a false twisting and heat setting device where filaments in the yarn are thermally and partially adhered to each other while the yarn is false twisted. A bulky cohesive continuous multifilament yarn thus obtained has alternate twists therein along the lengthwise direction thereof and a latent torque therein, and after it is tufted on a substrate of a carpet as a pile yarn and after the piles are cut, the carpet is heat treated, preferably by means of saturated or superheated steam. The torque in the cut piles is developed to create true twists.