Process for manufacturing a composite nonwoven and installation for carrying out the process
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United States of America Patent
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Feb 3, 2009
Grant Date -
Jan 4, 2007
app pub date -
Jan 13, 2004
filing date -
Jan 14, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A manufacturing process of a composite nonwoven composed of two webs, respectively, a lower web comprising long artificial and/or synthetic fibres, the size of which is between 15 and 80 mm, and an upper web comprising short natural fibres, the size of which is between 0.5 and 8 mm, characterized, on-line, by: dispersing fist of all the natural fibres into the water; then, putting the aqueous dispersion thus obtained on a carded lower web that is about to form or has been manufactured beforehand; then filtering the excess water through the lower web; then interlacing the fibres of the upper web with the fibres of the lower web with water jets; finally drying and then reeling up the obtained nonwoven composite. An installation for carrying out the process.
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