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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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GSM Calculation for Woven Fabric


Introduction:

GSM (Gram per square meter) is an important matter in textile sector. Higher GSM fabric is heavier and lower GSM fabric is lighter. A woven garments merchandiser must have to know the GSM calculation method to ensure the right GSM fabric that ordered by the buyer (though suppliers are regularly mentioned about the fabric GSM).
GSM Calculation for Woven Fabric
GSM Calculation for Woven Fabric

GSM:

GSM stands at Gram per square meter. It is the weight of fabric in one gram per square meter. It’s unit is gm/m2.

Crimp Factor:

Crimp percentage or crimp factor is defined as the mean difference between the straightened thread length and the distance between the ends of the thread while in the cloth, expressed as a percentage.

Woven Fabric GSM Calculation Method:

During calculating woven fabric GSM from fabric construction, we have needed the following formula.
GSM (Gram per square meter),


Example:

Suppose,
A woven fabric construction is like that-

Now, calculate the fabric GSM.

Solution:

From the given fabric construction we can see that,
  • Warp count- 50
  • Weft count- 40
  • EPI (Ends per inch) – 130
  • PPI (Picks per inch) – 60
  • Warp crimp factor- 1.2
  • Weft crimp factor- 1.0
Now, by applying all the data in the required formula, we can easily find out the above woven fabric GSM.
GSM (Gram per square meter),
= (3.12 + 1.5) × 23.5
= 108.57
So, above woven fabric GSM is 108.57

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