High performance purified natural zeolite pigment for papermaking and paper coating
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United States of America Patent
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Sep 9, 2003
Grant Date -
Mar 20, 2003
app pub date -
Aug 3, 2001
filing date -
Aug 3, 2001
priority date (Note) -
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Abstract
A high performance purified natural zeolite pigment composition for use in papermaking and paper coating is disclosed. Use of the pigment facilitates manufacture of coated ink jet and digital printing papers with improved quality and economics. The novel zeolite pigment composition can also be used as a supplementary pigment to improve the properties of coated paper and paperboard for flexographic and water-based gravure printing. When used as filler, the novel zeolite pigment composition is readily retained and eliminates print-through in uncoated papers. The novel zeolite pigment is low in abrasion and provides improved coefficient of friction. The novel zeolite pigment is also useful as a microparticulate retention aid in papermaking and as an additive to improve the performance of deinking processes.
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