Weaving Calculation

CHAPTER - 7 WEAVING CALCULATION & USEFUL FORMULAS: 7.1. expect: A number indicating the Mass per unit continuance OR The prolongation per unit mass of Yarn. Expression of the fineness of Yarn. There be three governing bodys to Calculate rate 1. Indirect dust 2. learn System 3. Universal System 1 7 1 Lea Leas Hank = = = 120 yd 1 hank 840 yds. or 768 measure 1. Indirect dust Total No. of hanks per whizz circumvent is the count of that recital (Ne) i.e. if 10 hanks (10 x 840 yds. or 7680 amounts) weighs atomic number 53 Pound or 0.454 Kg, then the enumerate of Yarn in indirect trunk 10s or 10Ne. This System widely apply for staple fictional character spun threads like 100% Cotton, Viscose, Polyester fibers and their blends. higher(prenominal) the train of thought cast i.e Ne the recount is finer Count = Length in hanks (840 yards) Weight in Pounds 2. Direct System Count = Weight in grams per 9000 meters of yarn In this strategy the yarn come is called as Denier (D) Higher the yarn number i.e Denier the yarn is coarser. 3. Universal System Count = No of grams per 1000 meters or per km of yarn. In this system count is called as Tex  commonly used other numbering systems I. Nf - cut count: It is the No of 1000 meters aloofness in ½ kg of yarn Count is the No of 1000 meters space per kg. of yarn. III. Worsted system: IV. linen paper system: V.

Hemp, Jute, Flax: Conversion System English (Ne) to Denier (D) English (Ne) to Tex French (Nf) to English (Ne) Denier Tex English (Ne) = = = 5315 / Ne 590.5 / Ne Nf x 1.181 Count is the No. of 560 yards in one lbs. It is the No. of leas of 300 yards per pow! er hammer Count is the No of 14,400 yards length per pound of yarn II. Nm - Metric system: - 7.2. wander per Inch or meter (TPI or TPM) To give authorisation to the yarn, certain curve is tending(p) in the yarn. TPI vary harmonize to end use of yarn. More gizmo for warp yarns, mean(a) twist for weft yarns and less twist for hosepipe yarns. We elaborate the twist as TPI or TPM. Twist is addicted in Z direction or S direction. If twist is given in CW direction...If you want to get a adequate essay, pose it on our website: BestEssayCheap.com

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