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:
Nov. 07, 2006
Filed:
Sep. 24, 2003
Takanobu Miyamoto, Tochigi, JP;
Wataru Saka, Tochigi, JP;
Yasuhiro Komori, Tochigi, JP;
Koji Asano, Tochigi, JP;
Manabu Kaneta, Tochigi, JP;
Takanobu Miyamoto, Tochigi, JP;
Wataru Saka, Tochigi, JP;
Yasuhiro Komori, Tochigi, JP;
Koji Asano, Tochigi, JP;
Manabu Kaneta, Tochigi, JP;
Kao Corporation, Tokyo, JP;
Abstract
A method for restoring bulkiness of nonwoven fabric which contains crimped thermoplastic fiber and is in a roll form is disclosed. The method comprises unwinding the nonwoven fabric from the stock roll, and blowing hot air to the unwound nonwoven fabric by a through-air technique to make the nonwoven fabric increase in bulkiness. The hot air is heated at a temperature lower than the melting point of the thermoplastic fiber and not lower than a temperature lower than that melting point by about 50° C., and is blown for about 0.05 to 3 seconds.