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:
Aug. 20, 2013
Filed:
Jul. 18, 2007
Seiichi Sakurai, Himeji, JP;
Satoru Harada, Kakogawa, JP;
Seiichi Sakurai, Himeji, JP;
Satoru Harada, Kakogawa, JP;
Kaneka Corporation, Osaka, JP;
Abstract
An object of the invention is to provide an artificial hair fiber bundle having a color tone with a gradation appearance at a tip portion thereof. An aspect of the invention is a fiber bundle () for artificial hair, with one end () thereof being bundled and fixed. The fiber bundle includes fibers (A, B) of two or more kinds having color tones different from each other, the fiber bundle being obtained by a heat treatment at a predetermined temperature. The fibers of two or more kinds have heat shrinkage rates different from each other, and a tip portion of the fiber (A) out of the fibers of two or more kinds emerges in a portion () corresponding to the other end of the fiber bundle () which is not bundled and fixed.