Friday, May 3, 2019
WARPING CALCULATIONS, SECTIONAL WARPING CALCULATIONS, DIRECT 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 machine 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 multi plies yarn. The Weaver’s beam having stripes pattern of single ply yarn is also made on sectional warping machine.
The fabric parameters required to make a beam on 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 = ?
Beam width = ?
Creel capacity = 240( maximum)
Section width = ?
Total number of sections = ?
Total ends = ?
Now we will discuss about 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 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= ?
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