Rayon fiber with ion-generating, characteristics and a method for manufacturing it
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United States of America Patent
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Nov 13, 2001
Grant Date -
N/A
app pub date -
Nov 17, 2000
filing date -
Nov 18, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A manufacturing method for rayon having ion-generating characteristics, featuring a ceramic content comprising 10-40% tourmaline by weight, 10-40% serpentine by weight, and 40-80% silica by weight. The ceramics are subjected to dry pulverization processing to achieve particle diameters of 2-10 .mu.m, and then to wet pulverization processing to make ceramic fine particle powder with average particle diameters under 0.5 .mu.m. The ceramic fine particle powder is then mixed as ceramic solids in viscose so that the ceramic content by weight is 15-35% that of cellulose. The viscose is mixed by quantitatively and continuously adding the above dispersion of ceramic in water with a vacuum-sealed agitator device installed in the viscose pipe circuit just prior to spinning of the viscose.
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