Process for the production of uncoated technical fabrics with low air permeability
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United States of America Patent
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Dec 10, 1996
Issued Date -
N/A
app pub date -
May 31, 1995
filing date -
Jan 12, 1990
priority date (Note) -
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Abstract
Uncoated technical fabric is produced in a dense weave with low air permeability. The fabric contains polyamide filament yarns with a hot air shrinkage of 6 to 15% (determined at 160.degree. C.) and has an at least substantially symmetrical fabric construction. The fabric is adjusted to the required air permeability by a treatment in an aqueous bath at 60.degree. to 140.degree. C.
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