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Prime School BD (PSBD24) is popular blog site about technology, merchandising, textile & accounting rules in Bangladesh. Also the post that are publishing about Accounting tutorial, Textile, RMG, Merchandising, Knit Merchandising, Woven Merchandising, Apparel Merchandising, Garments, Dyeing, Spinning, Washing, Buying House, else many things with tips & tricks. বদিউজ্জামান ( রুবেল )
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How to calculate yarn Requerement woven fabric





Q:-1- How to calculating the yarn consumption per mtr a woven fabric of specification (20x16)/128x60- Width-58”- 100% Cotton, 3/1-twill fabric.

Specification:









20 x16

X 55”








128 x 60
















Weight of warp yarn
12 x 58’’

EPI x Fab Width





840 x 20

840x Warp Count




=
0.441
LB/YD






=
0.441+15%

Crimp % + Wastage




=
0.508
LB/YD






=
0.508 x 106

LBS Yarn Price-106




=
53.84
TK/YD













Weight of weft yarn
60 x 58’’

PPI x Fab Width




840 x 16

840x Weft Count



=
0.258
LB/YD





=
0.258 +12%

Crimp % + Wastage



=
0.289
LB/YD





=
0.289 x100

LBS Yarn Price-100



=
29.17
TK/YD













Total Yard Price =
82.98
TK/YD
































Q: -2- Calculating the Total yarn consumption for Required fabric 1,00,000 yards woven fabric of specification (16x12)/116x56, Width-56”- 100% Cotton, 3/1-twill fabric.

Solution:
Here,
Order Quantity = 1,00,000 yards

Grey Qty.             = Order Quantity + Process Loss (7%)
                                 = 1,00,000 + (1,00,000 x 7%)
                                 = 1,07,000 yards

Bim Length (B/L) = Grey Qty. + Wastage (14%)
                                 = 1,07,000 + (1,07,000 x 14%)
                                = 1,21,980 yards
EPI = 116
PPI or, Fabric width = 56
Warp yarn count = 16
Weft yarn count = 12
Total Ends = EPI x Finished Fabric
                     = 116 x (56+1)
                     = 6612
Reed Count = EPI -12%, Or 10%               [Crimp % + Wastage]
                       = 116 – (116 x 10%)
                       = 104.4
Reed Space = Total Ends ÷ Reed Count
                       = 6612 ÷ 104.4
                       = 63.33333.



Warp Bim Length=
121%
Order Quantity
100%
(-) Sizing Wastage =
2%
(+) Extra ship
3%
Size Bim Length
=119%
Finish fabric Length/ship Qty.
103%
(-) Weaving wastage
12%
(+) Dyeing Wastage
4%
Grey Fabric Length
107%
Grey fabric Length
107%
(-) Dyeing Wastage
4%
(+) Weaving Wastage
12%
Finish fabric Length/ship Qty.
103%
Size Bim Length
119%
(+) Extra ship
3%
(+) Sizing Wastage
2%
Order Quantity
100%
Warp Bim Length
121%


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