Invention Grant
- Patent Title: Reversible color-changing sanitizer-indicating nonwoven wipe
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Application No.: US13720154Application Date: 2012-12-19
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Publication No.: US08772186B2Publication Date: 2014-07-08
- Inventor: Darren J. Farrugia , Lesley J. Ward , Veronica R. Reichert
- Applicant: Illinois Tool Works Inc.
- Applicant Address: US IL Glenview
- Assignee: Illinois Tool Works Inc.
- Current Assignee: Illinois Tool Works Inc.
- Current Assignee Address: US IL Glenview
- Agency: Pauley Petersen & Erickson
- Main IPC: C11D3/48
- IPC: C11D3/48

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 threshold 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.
Public/Granted literature
- US20130104325A1 REVERSIBLE COLOR-CHANGING SANITIZER-INDICATING NONWOVEN WIPE Public/Granted day:2013-05-02
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