Definition of colour fastness in English:

colour fastness

noun

  • See colour-fast

    • ‘The quality of dye used on fabrics plays a huge part in colour fastness.’
    • ‘How do you find out the color fastness of the pigment in your favorite tube of paint?’
    • ‘You also would like the thread to match the fabric it is being sewn in to and have good color fastness characteristics.’
    • ‘Test your different textiles for color fastness and degradation to long-term ultraviolet exposure.’
    • ‘Remember peroxide is bleach so test an inconspicuous spot first for color fastness.’