Process for increasing the water retention capacity in fibrous webs
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United States of America Patent
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-
Aug 13, 2002
Grant Date -
Jun 7, 2001
app pub date -
Dec 1, 2000
filing date -
Dec 3, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Process for increasing the water retaining ability of fibrous paper stocks. The process includes knead dispersing a fibrous paper stock having a stock concentration of at least about 20% and a temperature greater than about 45.degree. C. A treatment for the knead dispersing is at least about 10 seconds. The process further includes completing a post-treatment phase to a machine tub of a paper machine in a reaction time of no longer than about 30 minutes.
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