What is Color Fastness | Classification of Color Fastness | Different Types of Color Fastness | What is Crocking | Define Crocking

Definition: 
Clothing is colorfast if its colors and dyes do not bleed or run from the clothing. Clothing should be tested for colorfastness before using any type of bleach or bleaching solution, or strong cleaning product.

To test for colorfastness, find a hidden seam of the garment or an hidden spot. Apply the cleaner to the garment and then dab the area with a clean cotton cloth.

If the color removes itself from the garment onto the cloth, you should not use the cleaning product on the clothing. Important color fastness tests are given below:
  1. Color Fastness to Washing
  2. Color Fastness to light
  3. Color Fastness to perspiration
  4. Color Fastness to Water
  5. Color Fastness to Rubbing
  6. Color Fastness to Crocking
Crocking
Crocking is simply the transfer of color from a fabric onto another white test fabric. The more color is transferred, the more the fabric "crocks". Crocking determines the amount of color transferred from the surface of colored textile material to other surfaces by rubbing.
Crocking
  1. Laundering
  2. Dry cleaning
  3. Burnt gas fumes
  4. Light (Fastness)
  5. Perspiration
  6. Pressing, Sea water, Water, Chlorinated
  7. Pool water
  8. Ozone 
 
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Editor-in-Chief:

Mazharul Islam Kiron is a textile consultant and researcher on online business promotion. He is working with one European textile machinery company as a country agent. He is also a contributor of Wikipedia.


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