Title:
DYE-BASED TIME-INDICATING LABEL
Document Type and Number:
WIPO Patent Application WO/2014/092977
Kind Code:
A3
Abstract:
A multilayer time indicator comprises: A. A topsheet, B. An activating layer, C. A timing layer, D. A dye layer, and E. A substrate. In one embodiment the topsheet and activating layer comprise a first or activation section of the indicator while the timing layer, dye layer and substrate comprise a second or base section of the indicator. In one embodiment the activating layer of the first section and the timing layer of the second section are each protected with a release sheet. In one embodiment, the first and second sections of the indicator comprise a kit which can be converted into an active time indicator by removal of the release sheets and joining of the activating layer to the timing layer. In one embodiment the first and second section are joined to one another by a common release sheet or liner which maintains the indicator in an inactive state until the release sheet is removed and the activating layer is joined to the timing layer.
Inventors:
KASPER MATTHEW M (US)
SCHEUER ADAM D (US)
SAVAGIAN MICHAEL D (US)
SCHEUER ADAM D (US)
SAVAGIAN MICHAEL D (US)
Application Number:
PCT/US2013/071468
Publication Date:
August 07, 2014
Filing Date:
November 22, 2013
Export Citation:
Assignee:
BRADY WORLDWINDE INC (US)
International Classes:
G09F3/00; G04F1/00
Domestic Patent References:
| WO2003077227A2 | 2003-09-18 | |||
| WO1997042551A1 | 1997-11-13 |
Foreign References:
| EP1569053A2 | 2005-08-31 | |||
| US6452873B1 | 2002-09-17 | |||
| US5633835A | 1997-05-27 |
Attorney, Agent or Firm:
PLOTECHER, Gary, R. (555 East Wells Street Suite 190, Milwaukee WI, US)
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