Color Fastness

It refers to resistance of color of a dyed material to different influences like wash, perspiration, light rubbing, acid, alkali etc.
Reason of Color Fading:
1.     Decomposition, because of light etc.
2.     Bleeding, Because of wash etc.
3.     Chemical reaction, due to perspiration.
4.     Friction, Due to rubbing etc.
Assessment of Color Fastness:
1.Color fading by comparing colored object with faded object.
2.Color bleeding by comparing with white object with in touch white object.


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