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. 21, 1999
Filed:
Nov. 20, 1998
Shoichi Murata, Takasago, JP;
Kaneka Corporation, Osaka, JP;
Abstract
The present invention relates to artificial hair comprising polyvinyl alcohol fibers with a shrinkage percentage of 10% or less under a dry heat condition at 18.degree. C., preferably a shrinkage percentage of 10% or less under a dry heat condition at 20.degree. C. and with a fineness in the range of 25 to 100 denier wherein the ratio (S)/(L) of the length of short axis (S)/the length of long axis (L) in the sectional shape is in the range of 0.75 to 1. The artificial hair of the invention can be curled in a wide temperature range under hair iron setting conditions for human hair without deteriorating commodity qualities and without using special curl setting temperature conditions such as for conventional artificial hair consisting of synthetic fiber.