Inkjet receiver precoats incorporating silica
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United States of America Patent
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Aug 23, 2016
Grant Date -
Oct 2, 2014
app pub date -
Mar 27, 2013
filing date -
Mar 27, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An inkjet receiving media comprising a substrate having a transparent topmost layer coated thereon at solid content of from 0.3 to 2.5 g/m2, wherein the topmost layer includes from 30-70 wt % of one or more aqueous soluble salts of multivalent metal cations, 5 to 20 wt % of a cross-linked hydrophilic polymer binder, 4 to 12 wt % of a cationic polymer to stabilize 10 to 40 wt % silica that is less than 200 nm is size. Improved optical density, reduced mottle and improved wet abrasion resistance are provided when the receiver is printed with an aqueous pigment-based ink. In further embodiments, the topmost layer can further include high levels of silica that makes the layer porous.
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