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.