Invention Grant
- Patent Title: Reversible color-changing sanitizer-indicating nonwoven wipe
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Application No.: US14284866Application Date: 2014-05-22
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Publication No.: US09861245B2Publication Date: 2018-01-09
- Inventor: Darren J. Farrugia , Lesley J. Ward , Veronica R. Reichert
- Applicant: Darren J. Farrugia , Lesley J. Ward , Veronica R. Reichert
- Applicant Address: US IL Glenview
- Assignee: Illinois Tool Works, Inc.
- Current Assignee: Illinois Tool Works, Inc.
- Current Assignee Address: US IL Glenview
- Agency: Lewis Brisbois Bisgaard & Smith
- Agent Maxwell J. Petersen
- Main IPC: B05D3/02
- IPC: B05D3/02 ; A47L13/17 ; A01N25/34 ; A01N33/12 ; A47L13/16 ; C11D1/62 ; C11D3/40 ; C11D3/43 ; C11D3/48 ; C11D17/04 ; D06P1/00 ; D06P1/50 ; D06P1/651 ; D06P1/92 ; D06P5/13 ; G01N31/22 ; A61L2/28

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
- US20140255597A1 REVERSIBLE COLOR-CHANGING SANITIZER-INDICATING NONWOVEN WIPE Public/Granted day:2014-09-11
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