Fluff reducing device in textile yarns
AssigneeSavio Macchine Tessili S.p.A.
InventorsLuciano Bertoli, Giovanni Gardin, Guido Belforte, Terenziano Raparelli, Francantonio Testore, Vladimir Viktorov, Alexandre Ivanov, Andrea Trivella, Matteo Martinelli
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Abstract
Device for reducing the fluff of a yarn comprising a longitudinal duct for the passage of the yarn, and ducts for the injection of air, tangential to the yarn, forming a vortex in accordance with the yarn twist, without the interposition of deviation and control means for generating a balloon.
Claims14
Fluff reducing device (10) of a spun yarn (3), to be inserted on the path of the thread of a winding machine from the feeding pirn (2) to the tapered bobbin (12), comprising a nozzle (22) in which a duct (23, 43) is inserted which defines a longitudinal track of the yarn under process and one or more air injection ducts (24, 44) in a tangential direction with respect to the yarn (3) movement in the duct (23) characterized in that the air flow induced by means of said ducts (24, 44) corresponds to the twist of the yarn being processed, the duct (23) comprises an open longitudinal slit (29) along its entire length and no yarn (3) deviation and control means are interposed around the device (10).
A fluff reducing process of a yarn (3) along the path of a tapered bobbin yarn, from the feeding bobbin (2) to the tapered bobbin (12), consisting in passing the yarn being processed into a longitudinal duct (23, 43) and injecting into said duct one or more compressed air flows in a tangential direction with respect to the movement of the yarn (3) in the duct (23, 43), characterized in that the air flows generate a vortex with a torque in accordance with the processed yarn (3) twist, and that the fluff reduction is carried out without any substantial formation of a yarn (3) balloon.
Dependencies are inferred from the claim text.