**What does fabric specification mean?**

Fabric specification is one of the most important fundamental things in fabric weight calculation. It’s a kind of short-form used in view of a long description. So that, when we start for a calculation, it becomes possible to save time and ease the calculation. Let us clear fabric weight calculation by using the fabric specification concept

…………………………………… Warp count x weft count

Fabric specification = ……………………………………………….

………………………………….Ends per unit x picks per unit

Some most popular commercial fabrics with their specification:

………………..30 x 30 tex

1. Jeans: ……………………….

……………..36 x 26 per cm

………………………15/2 x 15/2 tex

2. Gabardine: ……………………………..

……………………….64 x 42 per cm.

…………………..20ˢ x 20ˢ

3. Denim: …………………….

……………………90 x60

………………14 x 16tex

4. Drill: ………………………

……………50 x 32per cm

………………..14/2 x 60tex

5. Poplin: ……………………….

……………….60 x 14per cm

………………………….33ˢ x 18ˢ

6. Sheeting: …………………………..

………………………..18 x 18-24

………………………27 x 38tex

7. Shirting: …………………………….

…………………..22 x 26-8 per cm.

**Important Fabric Specification for Fabric Weight Calculation**

**Mathematical problem:**

……………………………….10 x 8

Fabric specification: ……………. X 60”

………………………………70 x 50

*** Calculate the weight of 1000 meters?**

**Solution:**

As we have known, fabric specification’s elaborate form

……………………………………..Warp count x weft count

Fabric specification = ……………………………………………….

………………………………….Ends per unit x picks per unit

So here, EPI = 70 and warp count = 10

Total no. of warp = 70 x 60 = 4200

Length of each end = 1000m + 1000 x 3% = 1030 m [crimp=3%]

Total length of warp = 4200 x 1030 = 4326000 m

…………………..L x w

Now, Ne =…………………

……………………W x l

………………4326000 x 0.4536

=> 10 = …………………………………

…………………W x 840 x 0.91

……………….4326000 x 0.4536

=> W = ………………………………….

………………..10 x 840 x 0.91

=>W = 256.71 kg

PPI = 50 and weft count = 8

Total no. of weft = 50 x 39.37 x 1000

Length of each weft = 60 + 60 x 5% = 63” = 1.6 m

Total length of weft = 50 x 39.37 x 1000 x 1.6

…………………..L x w

Now, Ne = ………………

…………………..W x l

…………….50 x 39.37 x 1000 x 1.6

=> 10 = ……………………………………

……………………W x 840 x 0.91

=> W = 233.62 Kg

Total weight of the fabric = 233.62 + 256.7 = 490.33 kg (ANS)

Author of this Article:Amit Kumar DasFounder of "টেক্সটাইল ম্যানিয়া" Blog Pabna Textile engineering college, Pabna, Bangladesh Email: [email protected]