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Yarn
Yarn formation using Air-Jet Spinners
The Air-Jet spinning is very sensitive to the fiber length and fiber length distribution(short fiber content) of the material being processed. The amount of wrapping twist varies depending upon the length of the wrapping fibers as only a…
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Standard Staple Yarn Spinning Procedures
Yarn making from staple fibers involves picking (opening, sorting, cleaning, blending), carding and combing (separating and aligning), drawing (re-blending), drafting (drawing into a long strand) and spinning (further drawing and…
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Spun Yarns
Yarns are continuous strands of fibers that can be woven or knitted into fabrics. Natural staple fibers usually requires processes such as spinning to make yarns. Silk yarn, extracted from silk cocoon are continuous filament yarns. Most of…
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Twist insertion and Different Spinning Techniques
The new spinning systems clearly avoid the limitations produced by the twist insertion mechanism. It is possible to increase the twist insertion rate and the yarn production speed quite considerable. Various spinning techniques…
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Yarn Doubling – types, objectives, and application
Doubling reduces unevenness of single yarns and the strength of the doubled yarn is correspondingly better than the single yarns. In this article Ring Doubling, Two-For-One (TFO) twister, quality required by yarn to get best-doubled yarn…
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Automatic cone winding
Specifications of automatic cone winding, checking of reeling frequently, reeling doff weight, reeling calculations
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Yarn Finishing System
Contains the process sequence of Finishing for yarn. It includes yarn twist setting, cone winding from ring cops to cone by cone winding , ordinary cone winding specifications, slub catcher settings , splicing, production calculation.
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Optimum Yarn Spinning conditions
Factors governing Optimum Spinning condition, Yarn quality assessment, Causes of end breakage/ end down
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Lap Former Process
In Lap-former machine, slivers are fed to form a lap of 20 inches wide condensed with a slight draft and weighing as per set length. The machine run smoothly so as not to disturb the fibres which undergo combing at the comber machines. One…
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Speed frame
Objectives of speed frame, operations involved in speed frame
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