Process for inkjet paper and paper produced thereby
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United States of America Patent
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Dec 24, 2013
Grant Date -
Nov 7, 2013
app pub date -
Oct 23, 2012
filing date -
May 4, 2012
priority date (Note) -
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Abstract
A method for improving the print quality of paper, a process for preparing such paper and the paper produced thereby are disclosed. The method involves applying to the paper an aqueous solution comprising 0.15 to 6 weight percent calcium in the form of its hydroxide. The supersaturated solution of calcium hydroxide can be obtained from reverse osmosis of milk of lime. The paper produced by the method disclosed exhibits a surface concentration of calcium greater than 3 mg/m2 and less than 360 mg/m2 and at the same time less than 20% of a halide, nitrate, sulfate, carbonate, acetate or formate counter ion.
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