TEAR STRENGTH PROBLEM
The garments shows its ability to resist a tearing force . It is an important property for the durability of garments. It indicates of the strength of the yarn of garments.
The tear strength of garments will decrease after washing, and that loss of durability. The differences between
pre washed, stone washed, bleach washed, PP washed, and enzyme washed, and the strength
loss was found to be different. but It was also found that in cases where
softeners were used during laundering, the decrease of tear strength was larger.
Washing on Fabric Strength Calculation
The strength changes of garments after washing. Different washing have been lost how much garments strength
The garments was calculated by using the below equation.
Strength loss (%)=Strength before washing−Strength after washing Strength before washing×100Strength loss (%)=Strength before washing−Strength after washing Strength before washing×100
Tear Strength Method
It was tested with the Elmendorf method, the ISO 13937-1, and Determination of tear force using ballistic pendulum method. The mean tear force across warp and weft were calculated.
Tearing problem in Garments washing
Garments strength losses affect on Enzyme washed sample both it warp and weft direction it is because enzyme hydrolyzed the cotton.
Garments strength reduce on stone washed, Bleach washed, Heavy Enzyme washed and others washed
The way of technique to reduce tearing problem
Each and every washing should cool processed
Should use polyethylene and polyurethane softener in finishing time that help to increase garments strength and solve the tearing issues.
Should maintain Speed and time at 15 rpm for 10 min, if requirements of high strength of garments