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Publication numberWO2007032900 A3
Publication typeApplication
Application numberPCT/US2006/033586
Publication date4 Jun 2009
Filing date28 Aug 2006
Priority date29 Aug 2005
Also published asCA2620900A1, CA2620900C, CN101553405A, CN101553405B, CN102556458A, CN102556458B, EP1928751A2, EP1928751A4, EP1928751B1, EP2399833A1, EP2399833B1, WO2007032900A2
Publication numberPCT/2006/33586, PCT/US/2006/033586, PCT/US/2006/33586, PCT/US/6/033586, PCT/US/6/33586, PCT/US2006/033586, PCT/US2006/33586, PCT/US2006033586, PCT/US200633586, PCT/US6/033586, PCT/US6/33586, PCT/US6033586, PCT/US633586, WO 2007/032900 A3, WO 2007032900 A3, WO 2007032900A3, WO-A3-2007032900, WO2007/032900A3, WO2007032900 A3, WO2007032900A3
InventorsRichard Calusdian, Roger Clark, Richard Evans, Neil Griffin, Richard Hirst, M Scott Howarth, Sam Hyde, Wilson R Murray, Aylwyn Scally
ApplicantSinclair Systems International
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Multi-layer, light markable media and method and apparatus for using same
WO 2007032900 A3
Abstract
A multi-layer laminate media is provided on which information may be applied in machine or human readable form on a visible front surface by the output of one or more lasers, or other high intensity light source. In a preferred embodiment, the media has three layers including a substrate, a thermochromic layer and a light absorbent layer located intermediate the media substrate and the thermochromic layer. The light absorbent layer is adapted to absorb light from the light source and convert the absorbed light into heat. The heat is immediately conducted into selected portions of the thermochromic layer which is in thermal contact with the light absorbent layer, causing portions of the thermochromic layer to change visual appearance such as color to create the desired mark. The media optimally includes obscuration materials to reduce the visibility of the light absorbent layer to the naked eye. The light absorbent layer is preferably a low cost absorber such as carbon black. An alternate form of the invention is a two layer laminate media including a substrate and a thermochromic layer. The invention is usable in conjunction with labeling produce items. The invention includes a method and apparatus for using media in conjunction with labeling produce items.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US5234798 *4 Oct 199110 Aug 1993Dittler Brothers, IncorporatedThermal reactive structures
US5536778 *21 Apr 199316 Jul 1996Minnesota Mining And Manufacturing CompanyPressure sensitive adhesive comprising cellulose
US5766828 *9 Sep 199616 Jun 1998Imation Corp.Laser addressable imaging elements
US20040213922 *22 Apr 200328 Oct 2004Abrams Mitchell A.Labeling with thermally conductive pads
US20040234756 *19 May 200425 Nov 2004Appleton Papers Inc.Linerless labels
Non-Patent Citations
Reference
1 *See also references of EP1928751A2
Classifications
International ClassificationB32B38/14, B65C9/46, B32B7/12
Cooperative ClassificationB65C9/36, B65C9/46, G09F3/02, B65C9/188, B41M5/30, B41M2205/04
European ClassificationB65C9/36, B65C9/46, B65C9/18B4B, G09F3/02, B41M5/30
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