Method for forming colored cellulosic materials
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United States of America Patent
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Issued Date -
Jul 22, 2004
app pub date -
Dec 30, 2003
filing date -
Jan 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for applying a colorant to a cellulosic substrate to improve the resistance of the colorant to removal from the substrate by wetting or rubbing. The method is a two-step process in which the colorant is applied to the substrate in a first step, and in which an elastomeric overcoat is applied to the substrate over the colorant in a second step. The colorant includes a pigment, thickeners and water and can be applied to the substrate in a manner similar to the application of the overcoat, i.e., by any suitable on or off-paper machine process.
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