**Formula for Knitting Section:**

Knitting production is completely mathematical based. The knitting master or knitter or production manager of the knitting section has to do a lot of calculations for optimum production of knitting. I think the following formula will help a knitter to find out better production.

**Production Formula for Knitting Section:**

***** Production/shift in Kg at 100% efficiency,**

…..RPM x No. of Feeder x No. of Needle x SL (mm)

= ………………………………………………………………………

………………………3527.80 x Yarn count

***** Production/shift in meter,**

….Course/min

= …………………

…..Course/cm

…..RPM x No. of Feeder x 60 x 12 x Efficiency

= ………………………………………………………………

…………………..Course/cm x 100

***** Fabric width in meter,**

….Total no of wales

= …………………………

…..Wales/cm x 100

….Total no. of needles used in knitting

= …………………………………………………….

………………..Wales/cm x 100

***** Running Length (L),**

…….Machine rpm x No. of Feeder x Efficiency x 60

= …………………………………………………………..………….. m/hr

….No. of Feeders per course x Courses per cm x 100

***** Fabric width (WB),**

…..Cylinder diameter in inch x Machine Gauge

= ……………………………………………………………….. m

………………………Wales/cm x 100

***** Production in Kg,**

….Running length in meter per hour x WB x Weight in GSM

= …………………………………………………………………………………… Kg/hr

……………………………………….1000

…………………………………………Weight (in gm) x 39.37

***** Length Calculation** = …………………………………..

………………………………………….Width (in inch) x GSM

***** Production per shift in KG at 100% efficiency,**

……RPM x no of feeder x no of needle x stitch length (mm) x 60 x 12

= …………………………………………………………………….…………………………

…………………….10 x 2.54 x 36 x 840 x 2.2046 x yarn count

………………………………………Ks x 590.5

***** Stitch length** = …………………………….

………………………………Count (Ne) x GSM

Where,

Ks = knitting constant

Count = linear density of yarn

GSM = gm per square meter

**Another formula is:**

***** Stitch length** = (Tex × Ks) / GSM

Ks is a constant. Its value is different for different fabric structures and fabric types. Ks is calculated and estimated as below:

Ks = (GSM x Stitch length) / Tex

Author of this Article:Rofiquzzaman RajuFabric Technologist, B.J.Group, Mawna, Gazipur Email: [email protected]

Thank you for your post. It was quite interesting.

Interesting Article.