Method and apparatus for warping and method of dyeing of high twisted fine count yarn

Abstract

The present invention provides embodiments comprising an apparatus for warping yarns, a comb, method of direct warping of the high twisted fine count yarns and method for dyeing of high twisted fine count yarns on slasher dyeing machine. The apparatus comprises a narrow width warp beam, a comb having flexible pins and is configured to high tension which enable direct warping of the high twisted fine count yarns such as voile yarns. The method of direct warping comprises warping of the yarns at high tension onto a narrow width beam. The method of dyeing of the high twisted yarn includes preparing of the beams having high density of high twisted fine count yarns on narrow width of the beam, and dyeing

1 - 27 . (canceled) 
   
   
       28 . An apparatus ( 100 ) for direct warping of high twisted fine count yarns ( 114 ) such as voile yarns, said apparatus ( 100 ) comprising:
 a plurality of creels ( 110 ), each said creel ( 110 ) holds bobbin ( 112 ) of the high twisted fine count yarn ( 114 );   a comb having flexible pins ( 122 ) extending from a base and free to oscillate in radial direction of the yarns ( 114 ) for allowing passage of the yarn parallel to each other without breakage and entanglement;   a warp beam ( 130 ) arranged and constructed with narrow warping width for warping the yarns ( 114 ) with high yarn density, said beam ( 130 ) is adapted parallel to the comb to warp the yarn in straight condition; and   a pressure roller ( 132 ) positioned in contact with the beam ( 130 ) to maintain uniformed tension in the warped yarns ( 114 );   wherein the apparatus ( 100 ) is configured to warp the yarns ( 114 ) at a higher tension more than a breaking strength in the individual yarn to be warped on the beam ( 130 ).   
   
   
       29 . The apparatus ( 100 ) as claimed in  claim 28  wherein warping width of the warp beam ( 130 ) is narrowed to 500 mm by adapting two flanges on the regular size beam ( 130 ). 
   
   
       30 . The apparatus ( 100 ) as claimed in  claim 28  wherein the tension configured is more than 12% of breaking strength of the individual yarn while warping. 
   
   
       31 . A method for directing warping of high twisted fine count yarn such as voile yarn comprising steps of:
 assembling predetermined number of yarn bobbins ( 112 ) on creels ( 110 ) of the apparatus ( 100 ) as claimed in  claim 28 ;   passing the yarn ends through the comb having flexible pins ( 122 ); and   warping the yarns parallel on a narrow width beam ( 130 ) of length 500 mm;   wherein the yarns are warped at a tension more than breaking strength in the individual high twisted fine count yarn while warping.   
   
   
       32 . The method as claimed in  claim 31  wherein the said tension is more than 12% of breaking strength of the individual yarn. 
   
   
       33 . The method for dying of high twisted fine count yarns such as voile yarns on a slasher dyeing machine, said method comprising steps of:
 assembling predetermined number of warp beams ( 130 ) prepared by method as claimed in  claim 31  on creels ( 110 ) to obtain required number of the yarn in a yarn sheet; wetting, dying washing and drying the yarn sheet;   subjecting each dried yarn in the yarn sheet to high tension in the leasing zone thereby gradually separating of each yarn in the yarn sheet before the yarn reaches to leasing rod of the leasing zone;   passing the yarns through a comb having flexible pins ( 122 ) to allow passage of the yarns ( 114 ) without entanglement and breakage; and   winding the yarns on a weaver beam;   wherein each individual yarn in the yarn sheet ( 114 ) is substantially subjected to a high tension more than a breaking strength of the individual yarn ( 114 ).   
   
   
       34 . The method as claimed in  claim 33  wherein said tension in the individual yarn ( 114 ) is more than 20% of the breaking strength of the individual yarn. 
   
   
       35 . The method as claimed in  claim 33  wherein the method includes a step of lubricating the yarn sheet ( 114 ) before passing through the leasing zone. 
   
   
       36 . The method as claimed in  claim 33  wherein the lubricant is selected from the group of cationic or non-ionic lubricating. 
   
   
       37 . The method as claimed in  claim 33  wherein the method includes gradually increasing of tension in the yarn sheet in each zone. 
   
   
       38 . The method as claimed in  claim 33  wherein initial tension in the yarns ( 114 ) in the yarn sheet starts from 500 Newton. 
   
   
       39 . The method as claimed in  claim 33  wherein the dye is selected from a group of indigo dye, sulfur dyes, vat dyes, reactive dyes, and direct dyes and preferably the dye is indigo dye.