WARPING CALCULATIONS FOR SECTIONAL WARPING MACHINE

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.

EPI = 168
Reed = 84/4 (84 DENTS IN 2 INCHES STOCK PORT REED SYSTEM)
Fabric width = 120 inches
Warp regain = 11℅
Reed space = 128.6 inches
Fabric length = 5000 metres
Creel capacity = 480( maximum)
Warp length = ?
Beam width = ?
Section width = ?
Total number of sections = ?
Total ends = ?

Now we will discuss about warping Calculations

Total ends = EPI x fabric width (inches)
                   = 168 x 120
                   = 20160 ends
Selvedge ends for left side 168 & right side 168 ends
So, 168+20160+168
total no. of ends in the beam 20496

Beam width  = reed space( mm) +20 mm     
                      = (128.6 x 25.4) mm + 20 mm 
                      = 3266.00 mm + 20 mm
                     
                      = 3286 mm ( beam width)


Total number of sections = total ends/creel capacity

=20160/480 =42 sections

Each side one one section for selvedge
So, total section will be 44
total ends 20496

section width= beam width Xcreel capacity / total ends

3289 X 480 / 20496 = 77

one section 77 mm



warp length = fabic length X (100 + warp regain %) / 100

5000 X (100 X 11) / 100

5550 meters Warp length

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