Method and entanglement nozzle for reproducing knotted yarn
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Aug 4, 2009
Grant Date -
Feb 5, 2009
app pub date -
Mar 16, 2006
filing date -
Mar 20, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to an entanglement nozzle and to a method for producing fine knotted yarn with highly regular knots by means of air jets comprising a yarn treatment channel. According to said method, air is blown transversally to the yarn treatment channel. Said blown air forms a respective double swirl both in the yarn transport direction and against the yarn transport direction for creating the knots. According to the invention, upon entry into the yarn treatment channel, the blown air is converted into two intense, stationary eddy currents that are not disrupted by filament bundles, in an air swirling chamber that only extends for a short distance in the longitudinal direction of the yarn channel. The regularity of the knots can be significantly improved, despite the tiny dimensions of the air swirling chamber, which projects beyond the longitudinal wall of the yarn channel for a maximum 0.5 mm or for 5% to 22% of the width (B) of said channel. It is also possible to create hard or soft knots that can be subsequently undone.
First Claim
Other Claims data not available
