# GATE (TF) Textile 2010 Question Paper Solution | GATE/2010/TF/11

###### Question 11 (Textile Engineering & Fibre Science)

Size add-on in NOT influenced by

D

### What is the formula for size add on percentage?

In textile manufacturing, “size” refers to a solution that is applied to yarn or fabric to improve its weaving or processing characteristics. “Size add-on percentage” refers to the amount of size that has been applied to a particular textile material, expressed as a percentage of the material’s weight before sizing.
The formula for calculating size add-on percentage is:
Size Add-on Percentage = (Weight of Sized Material – Weight of Unsized Material) / Weight of Unsized Material x 100
In this formula, “Weight of Sized Material” refers to the weight of the textile material after it has been sized, “Weight of Unsized Material” refers to the weight of the same material before sizing, and the result is multiplied by 100 to express the value as a percentage.
For example, if a textile material weighs 100 grams before sizing and 120 grams after sizing, the size add-on percentage would be:
Size Add-on Percentage = (120 g – 100 g) / 100 g x 100 = 20%