Yarn texturizing apparatus and method

Abstract

A yarn texturizing apparatus and method for texturizing a plurality of yarns, which can include a tack assembly and a jet box assembly. The tack assembly can be configured to receive a bundle of yarns and impart a plurality of twists to each bundle of yarns and subsequently impart a first tack point at a point corresponding to a twist reversal between the twists. The downstream jet box assembly can be configured to place a plurality of additional tack points intermittently along the plurality of twists of each bundle of yarn.

What is claimed is: 
     
         1 . A method for texturizing a plurality of yarns, comprising:
 imparting a plurality of twists to a bundle of yarns, wherein the bundle of yarns comprises at least two yarns, wherein the plurality of twists comprises at least a first twist and a second twist;   sequentially setting a plurality of tack points on the bundle of yarns, each tack point being positioned at a point corresponding to a twist reversal between the first and second twists; and   sequentially setting a plurality of additional tack points on the bundle of yarns, each additional tack point being positioned intermittently along the respective first and second twists of the bundle of yarns.   
     
     
         2 . The method of  claim 1 , wherein at least one of the additional tack points on the bundle of yarns is positioned between sequential twist reversals. 
     
     
         3 . The method of  claim 1 , wherein a tack assembly receives the bundle of yarns and sets the plurality of tack points onto the bundle of yarns, wherein a nip roller is located downstream of the tack assembly along a yarn path, wherein the nip roller pulls the bundle of yarns through the tack assembly at a selectively adjustable speed, wherein a jet box assembly is positioned downstream of the nip roller relative to the yarn path, wherein the jet box assembly sets the plurality of additional tack points onto the bundle of yarns, wherein a pull roller assembly is positioned downstream of the jet box assembly along the yarn path, and wherein the pull roller assembly pulls the bundle of yarns through the jet box assembly at a selectively adjustable speed. 
     
     
         4 . The method of  claim 3 , wherein at least one elongate body is positioned upstream of the tack assembly, the at least one elongate body having an inner surface that defines a bore that extends from a first end of the elongate body to an opposed second end of the elongate body and a plurality of conduits disposed therein, wherein each conduit of the plurality of conduits guides a single yarn of the at least two yarns along the yarn path, and wherein the tack assembly receives the bundle of yarns from the at least two yarns emerging from the plurality of conduits. 
     
     
         5 . The method of  claim 4 , wherein the tack assembly comprises:
 a twist plate assembly positioned downstream from the at least one elongate body relative to the yarn path; and   a roto-jet assembly positioned downstream of the twist plate assembly relative to the yarn path.   
     
     
         6 . The method of  claim 5 , wherein the twist plate assembly receives the bundle of yarns, wherein the twist plate assembly comprises:
 a first plurality of twist plates oriented to rotate the at least one bundle of yarns in a first direction to impart the first twist to each bundle of yarns; and   a second plurality of twist plates oriented to rotate the at least one bundle of yarns in a second direction to impart the second twist to each bundle of yarns.   
     
     
         7 . The method of  claim 5 , wherein the roto-jet assembly places a first tack point in the bundle of yarns at a point corresponding to a twist reversal between the first twist and the second twist of the bundle of yarns as the bundle of yarns passes through the roto-jet assembly. 
     
     
         8 . The method of  claim 7 , wherein the first twist is a S-twist and the second twist is a Z-twist. 
     
     
         9 . The method of  claim 3 , wherein a winder is positioned downstream of the pull roller assembly, and wherein the winder pulls the yarn through the yarn texturizing apparatus. 
     
     
         10 . The method of  claim 3 , wherein the at least two yarns comprises at least one continuous filament yarn. 
     
     
         11 . The method of  claim 10 , wherein the continuous filament yarn comprises nylon, polypropylene, or polyethylene terephthalate yarns. 
     
     
         12 . The method of  claim 3 , wherein the plurality of yarns comprises at least two different colored yarns. 
     
     
         13 . The method of  claim 6 , wherein the first and second plurality of twist plates rotate in a range between 1.9 turns per inch (TPI) to 2.1 TPI in both the first and second directions. 
     
     
         14 . The method of  claim 3 , wherein the nip roller operates at speeds ranging from about 300 to about 800 ypm. 
     
     
         15 . The method of  claim 3 , wherein the speed of the pull roller assembly is selected to run at a speed that is about 5% faster than the speed of the nip roller. 
     
     
         16 . The method of  claim 3 , wherein the speed of the pull roller assembly is selected to run at a speed that is at least 5% faster than the speed of the nip roller. 
     
     
         17 . The method of  claim 3 , wherein the nip roller comprises a driven flat belt operably associated with a plurality of rollers. 
     
     
         18 . The method of  claim 3 , wherein at least one of the additional tack points on the bundle of yarns is positioned between sequential twist reversals. 
     
     
         19 . A yarn texturizing apparatus for texturizing a plurality of yarns, wherein the yarn texturizing apparatus has a yarn path extending between a yarn inlet port and a yarn outlet port, comprising:
 a tack assembly configured to receive at least one bundle of yarns, wherein each bundle of yarns comprises at least two yarns of the plurality of yarns, wherein the tack assembly is configured to impart at least a first and a second twist onto each bundle of yarns;   a jet box assembly positioned downstream of the tack assembly relative to the yarn path, wherein the jet box assembly is configured to place a plurality of additional tack points onto each bundle of yarns as the at least one bundle of yarns passes through the jet box assembly, wherein the plurality of additional tack points are placed intermittently along the twists of each bundle of yarns; and   at least one elongate body positioned upstream of the tack assembly, the at least one elongate body having a plurality of conduits disposed therein, wherein each conduit of the plurality of conduits is configured to guide a single yarn of the plurality of yarns along the yarn path, and wherein the tack assembly is configured to receive the at least one bundle of yarns from the plurality of yarns emerging from the plurality of conduits.