GSM of Fabric | Working Procedure of Measuring GSM of a Fabric

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Fabric GSM:
The GSM of fabric is one kind of specification of fabric which is very important for a textile engineer for understanding and production of fabric. ‘GSM’ means ‘Gram per square meter’ that is the weight of fabric in gram per one square meter. By this we can compare the fabrics in unit area which is heavier and which is lighter.
GSM cutter
The weight of a fabric can be expressed in two ways, either as the ‘weight per unit area’ or the ‘weight per unit length’; the former is self explanatory but the latter requires a little explanation because the weight of a unit length of fabric will obviously be affected by its width. In woven fabric, the weight per unit length is usually referred to as the ‘weight per running yard’. It is necessary therefore to know the agreed standard width upon which the weight per running yard is based. Usually this width depends upon the width of loom. Before coming the term ‘GSM’ there was another term called ‘lb/100 yards’. This expression is used by British Standard. For measuring this there are a template and a quadrant balance. The template area is 1/100 square yards of which each arm is 1/10 yards in length. For measuring GSM, a GSM cutter is used to cut the fabric and weight is taken in balance. Both of these measurement and method is equally used for both woven and knitted fabrics.

Apparatus:
1.GSM cutter
2.Electric balance.

Working Procedure of Measuring GSM of a Fabric:
1. For Measuring GSM, fabric sample is cut by GSM cutter
2. Now weight is taken by electric balance.
3. By this way we get the weight in gram per one square meter fabric.
4. Here GSM of the fabrics by the GSM cutter is obtained by the multiplying the sample weight with 100.

2 comments:

Sadia Sobo said...

would u pls tell me what is RPM (ROUND PER MINUTE)? how can we use this to measure the production capacity of a loom machine (in Yards)?

Sadia Sobo said...

how could we use RPM (round per machine) to measure the production capacity of power loom (in Yards)?

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