DETERMINATION OF FABRIC GSM

 

                                                

GSM: GSM stands for "grams per square meter" and is a unit used to measure the weight of fabric [1]. For instance, a fabric with a GSM of 200 means that the weight of one square meter of that fabric is 200 grams. GSM relates to a fabric’s weight. The heavier the weight of the fabric, the thicker the fabric is and vice versa. [2]

GSM CUTTER:

Radius of specimen cut by GSM Cutter 5.64 cm (Diameter 11.28 cm)

       

Video Links:

Specimen cutting by Schroder GSM Cutter

Specimen cutting by Hydraulic GSM Cutter (Video#1)

Specimen Cutting by Hydraulic GSM Cutter (Video#2)

STEPS OF DETERMINING FABRIC GSM [3]:

                                             

Step-1: Specimen cutting by Schroder GSM Cutter or Hydraulic GSM Cutter.

Step-2: Weighing of the Specimen with the help of Electric balance

Step-3: GSM=Specimen weight*100

Video Links: Steps of determining Fabric GSM

FINDING GSM WITHOUT GSM CUTTER

METHOD-1:

Specimen Size10 Cm x 10 Cm

Area of the Specimen= 100 Cm²

If specimen weight is 1.65 gm

Then,

GSM=1.65x100

         =165

METHOD-2:

Specimen Size 1 inch x 1 inch

Assume that the specimen weight is 0.11 gm

Then,

GSM=0.11x1550

               =170

METHOD-3: Available dimension of specimen [4]

Note:

1 inch = 2.54 Cm

16 inch = (16*2.54) Cm

            = 40.64 Cm

                                                             

                                                                        

GSM CALCULATION OF WOVEN FABRIC

FINDING GSM FROM FABRIC CONSTRUCTION:

12à Warp Yarn Count

16à Weft Yarn Count

92à EPI

108à PPI

 

                                   

                                            

                                            

 

CONVERSION FORMULA FROM GSM TO Oz/Yd²:

                                                               

Example:

Let us assume that woven fabric GSM is 360.

                                                    

                                                    

                                                    

REFERENCE:

1. https://sanvt.com/blogs/journal/fabric-weight-a-guide-to-gsm?srsltid=AfmBOoreMfYdjker8NGaUvJQIuRw1yAJZlxEAxb3J3vU_nD7cjYYKrXl
2. https://www.artilectperformance.com/en-gb/blogs/journal/what-is-gsm-and-why-does-it-matter
3. https://www.amazon.co.uk/NEWTRY-Instrument-Precision-Electronic-Adjustable/dp/B07BLRV5R3?th=1
4. https://www.autofiber.com/blogs/microfiber-university/what-is-gsm?srsltid=AfmBOooKtG7uMImCT8vMhwn8b4cgoj-_oqowZJkMMMCqGTf-iQxGC8pP

AUTHOR: 

Md. Suruj-Zaman

B.Sc in Textile Engineering

Dhaka University of Engineering and Technology (DUET)

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