How to do the winding calcutaions is described here .And also the objective of winding is specified.

## Winding Calculation

Slub – catcher settings:

1. Fixed Blade = Carded - (2.0 to 2.5) x Diameter
Combed - (1.5 to 2.0) x Diameterb.
2. Oscillating Blade = Smooth micro-set - 25% more than above
3. Serrated Blade = 100% more than the aboved.
4. Electronic yarn clearer = 3 cm x 3 Diameter

For Blended yarn = 10 to 15% more settings

Yarn clearer efficiency = 100 present (Faults removed )/(Faults Present)*100

Knot factor = (Total Breaks during winding(at faults))/No of Breaks due to objectional faults

Retained splice strength = Strength of spliced joint * 100 /Strength of parent yarn

Winding Tension = 0.1 x Single strength in grams

Optimum spindles / winder N = (4.8 * Y)/S OR

Expected efficiency E = 4500 * Y / (S * N(12 + 98))

Expected production P = (13 Y/(12+98) * C)/winder per 8 hrs in kg

Y = Length / Bobbin (meters.) B = breaks per bobbin
S = Winding speed (meters./min) C = English count

## Winding Requirements

• Minimum fault: During winding always should be observed if yam fault become less. (To minimize the yam faults).
• No damage of yarn: There is a dame of yarn i.e. the yarn must not be damaged in any way in the winding process.
• Easy unwinding: Yarn to be wound so that it can be unwound easily.
• Suitable size and shape of the package: Size and shape should be proper.
• Economical condition: The package size should be controlled the particular economic requirements.
• Avoid excess loosened and tightness: Should be taken care.
• Cheap cost of package: The package should be cheap. Above all the process must be profitable.

## Objectives of Winding

Elimination of disturbing yarn fault such as long thick places, long thin places, short thin places and short thick places.

• To get the continuous length of yarn on cones for weaving process.
• To wax the yarn during the winding process.
• To get high efficiency of machine, that is high production level.