Veil with a PVOH fibre binding agent
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United States of America Patent
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Jul 22, 2008
Grant Date -
Nov 17, 2005
app pub date -
Mar 19, 2003
filing date -
Mar 20, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
The process according to the invention comprises: a step in which chopped filaments and discontinuous PVOH fibers are dispersed in a process water, followed by a step in which a bed is formed in a forming device by passing the dispersion over a forming cloth through which the process water is drained, the filaments and fibers being retained on said cloth, followed by a heat treatment step in a stoving device. The PVOH fibers impart rigidity to the bed of fibers being formed. This process provides a veil with a very high tensile strength for low proportions of binder.
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