Aqueous sizing compositions for shading in size press applications
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United States of America Patent
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Oct 24, 2017
Grant Date -
Dec 13, 2012
app pub date -
Feb 5, 2011
filing date -
Feb 11, 2010
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Abstract
The instant invention relates to liquid sizing compositions comprising shading dyestfuffs, derivatives of diaminostilbene, binders, protective polymers, and optionally divalent metal salts which can be used for the optical brightening of substrates, including substrates suitable for high quality ink jet printing.
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