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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 the Amount of Sewing Thread Consumption

Sewing thread consumption 
For a disciplined garments costing, it’s very important issue to know sewing thread consumption. For making a garment, the needed amount of sewing thread or making seam is called sewing thread consumption

Thread consumption varies between stitch types to stitch type. 

Sewing Thread Consumption
Sewing thread
Classification of stitch: 

  1. Stitch type-101(Single needle chain stitch)
  2. Stitch type-301(single needle lock stitch)
  3. Stitch type-401(single needle chain stitch)
  4. Stitch type-504(three thread over edge stitch)
We need to remember four theoretical equation for determining actual thread consumption for sewing 1 inch or making 1 inch of seam. 

<<For stitch type-101>> 
Thread consumption (C) = 3 + 2TS 

<<For stitch type-301>> 
Thread consumption (C) = 2 + 2TS 

<<For stitch type-401>> 
Thread consumption(C)= 4 + 2TS 

<<For stitch type-504>> 
Thread consumption (C) = 3 + 4WS + 4TS 

Here, 
T = Seam thickness 
S = Stitch density 
W = Seam’s width 

Mathematical Problem:-01 
If the thickness of seam 0.005 and stitch number per inch is 9, Determine thread consumption for stitch type-101? 

Solution: 

Given that,

Thickness of Stitch (T) = 0.005 
Stitch density 
(S) = 9 per inch 
Thread consumption =? 

We know , For stitch type-101 

Thread consumption = 3 + 2TS 

= 3 + 2 x 0.005 x 9 

= 3.09 inch (ANS) 

Mathematical problem:-02.

If thickness of seam and stitch density is respectively 0.01 and 10 per inch. Find out thread consumption for Stitch type-301? 

Solution: 

Given that,

Thickness of Stitch (T) = 0.01 
Stitch density 
(S) =10 per inch 
Thread consumption = ? 

We know, For stitch type-301 

Thread consumption (C) = 2 + 2TS 

= 2 + 2 x 0.01 x 10 

= 2.2inch (ANS) 

Mathematical problem:-03.

Seam’s thickness 0.015 and Stitch density per inch 15, Then what amount of thread will be needed for making 1 inch of seam for stitch type-401 ? 

Solution: 

Given that,


Thickness of Stitch (T) = 0.015 
Stitch density (S) =15 
Thread consumption = ?


Thread Consumption (C) = 4 + 2 TS 

= 4 + 2 x 0.015 x 15 

= 4.45 inch (ANS) 

Mathematical problem:-04.

For Stitch type-504, determine thread consumption for seam thickness 0.02, stitch density 15 per inch and seam’s width 1/4ʹʹ ? 

Solution: 

Given that,


Thickness of Stitch (T) = 0.02  
Stitch density (S) =15 
Width (W) =1/4ʹʹ 

Thread consumption (C) =3 + 4 WS + 4 TS 

= 3 + 4 x ¼ x 15 + 4 x 0.02 x 15 

= 3 + 15 + 1.2 

= 19.2 inch (ANS) 

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