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US 2012/0205062 A1Published application
Sheet material comprising at least one watermark having a colored shade
AssigneesArjowiggins Security, Arjowiggins
InventorsHenri ROSSET, Ivan THIERRY
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Abstract
The present invention relates to a sheet material (2) comprising at least one first layer defining an outer surface of the sheet material and having at least one first color, at least one second layer comprising at least one watermark (6) and having at least one second color, the first and second colors having at least different saturations and/or hue angles.
Claims31
A sheet material, comprising:
- at least one first layer having at least one first color;
- at least one second layer comprising at least one watermark having at least one second color;
- said at least one first layer being a fibrous layer, and at least one of the first and second layers incorporating in its mass at least one dyeing agent to give said layer a colored shade appearing approximately continuous to the naked eye, the other of first and second layers incorporating in its mass a fluorescent agent that is invisible in visible light.
A sheet material, comprising:
- at least one first layer having at least one first color;
- and
- at least one second layer comprising at least one watermark having at least one second color,
- said at least one first layer being a coating layer deposited by a surfacing treatment, by impregnation of the second layer or by coating onto the second layer, and at least one of the first and second layers incorporating at least one dyeing agent in its mass, chosen so as to give said layer a colored shade appearing approximately continuous to the naked eye, and
- the second layer being a fibrous layer comprising in its mass at least one sizing agent.
2 more elements
Dependencies are inferred from the claim text.