Economy ink jet product and coating composition
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United States of America Patent
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Issued Date -
Jul 1, 2004
app pub date -
Oct 16, 2003
filing date -
Apr 19, 2001
priority date (Note) -
Abandoned
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Abstract
A high quality ink jet recording medium is formed of a dimensionally stable absorbent paper or paperboard base sheet and a coating that is primarily a reaction product of polyvinyl alcohol and boric acid. The reaction product has molecule bonds that are principally polyvinyl alcohol-boric acid-polyvinyl alcohol bonds which, when applied to the substrate, form a three-dimensional sieve or screen-like coating facilitating penetration to the absorbent base-sheet of ink carrier vehicle and holding out on the sieve or screen the ink pigments and colorants. The coating facilitates manufacture of a high quality-recording medium of exceptionally low cost, ideally suited for high-speed multicolor ink jet printing in continuous web form. Methods of making the coating and the medium are disclosed.
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