WARPING CALCULATIONS, SECTIONAL WARPING CALCULATIONS, DIRECT WARPING CALCULATIONS

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WARPING CALCULATIONS:

Warping calculations are very important in fabric manufacturing. The efficient and accurate weaving of any fabric needs exact warping calculations to make a Warper’s or Weaver’s beam.

There are two kinds of warping machines that are used to make a warp beam.

1 – Sectional warping or indirect warping.

2 – Direct warping or beam warping.

SECTIONAL WARPING CALCULATIONS:

Generally, sectional warping is used to make Weaver’s beams of multiplies yarn. The Weaver’s beam having stripes pattern of single-ply yarn is also made on the sectional warping machine.

The fabric parameters required to make a beam on a sectional warping machine are given below:

EPI = 52

Fabric width = 84 inches

Warp regain = 11℅

Reed space = 87.36 inches

Fabric length = 1000 metres

Warp length = ?

Beamwidth = ?

Creel capacity = 240( maximum)

Section width = ?

The total number of sections = ?

Total ends = ?

Now we will discuss warping Calculations

Total ends = EPI x fabric width (inches)

                   = 52 x 84

                   = 4368 ends

Beam width  = reed space( mm) +20 mm     

                      = (87.36 x 25.4) mm + 20 mm 

                      = 2218.94 mm + 20 mm

                      = 2238.94 mm

                      = 2239 mm ( beam width)

DIRECT WARPING CALCULATIONS:

Direct warping is used to make a Warper’s beams of single-ply yarn.  The number of beams are made and are grouped together during sizing.

The parameters required to make beams on the direct warping machine are given below:

1- EPI = 100

2- Fabric width = 80 inches

3- Maximum creel capacity =  700

4- Fabric length = 1000 metres

5- Calculated creel capacity=?

6- Number of beams=?

7- Required warp length=?

Please click on the below video link to watch the full article in Hindi:

You may also be interested in following articles:

Fabric analysis                              

                             

Objectives of sizing

Rotor spinning method ( an open end spinning process)

Yarn count conversion from one to another system

Woven fabric costing

Cloth or fabric cover factor calculation

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