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:
Jun. 11, 1996
Filed:
Dec. 08, 1994
Akihito Shizuno, Tochigi-ken, JP;
Hiroyuki Yanagida, Tochigi-ken, JP;
Kao Corporation, Tokyo, JP;
Abstract
A cleaning sheet comprises a network sheet and a nonwoven fiber aggregate formed by the entanglement of fibers of a fiber web and disposed on at least one side of the network sheet. The fibers of the nonwoven fiber aggregate are further entangled with the network sheet, forming a unitary body. The cleaning sheet has the breaking strength of 500 g/30 mm or more, and the elongation at a load of 500 g/30 mm is 10% or less. The fiber aggregate has the entanglement coefficient of from 10 to 500 m. The entanglement coefficient is expressed by the initial gradient of the stress-strain curve measured with respect to the direction perpendicular to the fiber orientation in the fiber aggregate.