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1. (WO2010117520) REVERSIBLE COLOR-CHANGING SANITIZER-INDICATING NONWOVEN WIPE

Pub. No.:    WO/2010/117520    International Application No.:    PCT/US2010/026172
Publication Date: Fri Oct 15 01:59:59 CEST 2010 International Filing Date: Fri Mar 05 00:59:59 CET 2010
IPC: D06P 1/00
A01N 25/34
A47L 13/17
C11D 17/04
C11D 1/62
C11D 3/00
D06P 1/651
D06P 1/92
D06P 1/50
D06P 5/13
G01N 31/22
Applicants: ILLINOIS TOOL WORKS INC.
FARRUGIA, Darren J.
WARD, Lesley J.
REICHART, Veronica R.
Inventors: FARRUGIA, Darren J.
WARD, Lesley J.
REICHART, Veronica R.
Title: REVERSIBLE COLOR-CHANGING SANITIZER-INDICATING NONWOVEN WIPE
Abstract:
A nonwoven wipe having a reversible sanitizer indicator for multiple uses and recharges is provided. The nonwoven wipe includes a cloth-like nonwoven fabric coated with a reversible color-changing ink formulation. During use, the nonwoven wipe is impregnated with a quaternary ammonium compound-based sanitizer. When the level of free quaternary ammonium compound falls below a threshhold level, the color-changing ink formulation changes from a first color to a second color, indicating the need to recharge the wipe. When the nonwoven wipe is recharged with sanitizer solution, the color-changing ink formulation changes back to the first color.