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. 08, 2011
Filed:
May. 18, 2007
Takeshi Miyamura, Tochigi, JP;
Manabu Matsui, Tochigi, JP;
Tetsuya Masuki, Tochigi, JP;
Hideyuki Kobayashi, Tochigi, JP;
Koji Kanazawa, Tochigi, JP;
Hiroshi Kohira, Tochigi, JP;
Takeshi Miyamura, Tochigi, JP;
Manabu Matsui, Tochigi, JP;
Tetsuya Masuki, Tochigi, JP;
Hideyuki Kobayashi, Tochigi, JP;
Koji Kanazawa, Tochigi, JP;
Hiroshi Kohira, Tochigi, JP;
Kao Corporation, Tokyo, JP;
Abstract
A stretch nonwoven fabriccontains inelastic fibers having a varied thickness along the length and elastic fibers. The nonwoven fabricpreferably includes an elastic fiber layerand a substantially inelastic, inelastic fiber layeron at least one side of the elastic fiber layer. The fibers with a varied thickness along the length are contained in the inelastic fiber layer. The nonwoven fabricis conveniently produced by (a) superposing a web containing low-drawn, inelastic fibers having an elongation of 80% to 800% on at least one side of a web containing elastic fibers, (b) subjecting the webs, while in a non-united state, to through-air technique to obtain a fibrous sheet having the webs united together by thermal bonding the fibers at their intersections, and (c) stretching the fibrous sheet in at least one direction to draw the low-drawn inelastic fibers, followed by releasing the sheet from the stretch.