Process for Producing Optically Brightened Paper
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United States of America Patent
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Issued Date -
Sep 16, 2010
app pub date -
Dec 22, 2006
filing date -
Jan 26, 2006
priority date (Note) -
Abandoned
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Abstract
The instant invention relates to a process for the production of optically brightened paper by treating the pulp suspension with an optically brightened filler composition comprising optically brightened plastic fibres, preferably polyester fibres, which leads to a surprising high lightfastness of the resulting paper.
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