Color Fastness to Chlorinated pool water

 

Color Fastness to Chlorinated pool water:

Chlorinated pool water:
Chlorinated Pool water fastness is getting more importance in Terry Towel industry for swimwear and also for yarn dyeing. This method is designed to evaluate the resistance to Chlorinated Pool Water of any colored textile substrate. Here, the test specimen is treated in diluted Chlorine solution under specified conditions of available chlorine content, time and pH condition.

There are two methods to evaluate the same:

AATCC 162-1997:
In this method, the test specimen is treated with 5 mg/lit. active chlorine at neutral pH for 60 minutes at 21C in tumble wash machine.

ISO 105 /E03
In this method, the test specimen is treated with 20 mg/lit. active chlorine at pH 8.5 for 4 hours at 20±2 C in subdued light.

The rating is given on the basis of change in shade. Grade 5 being the best and 1 being poor.