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Contact SupplierLight fastness tester or color  fastness tester technique  to determine the color fastness through sun light of textiles and garments.
All dyed material experience change in color when showing to day light for a adequately long period because of the act of sunlight.
The light fastness test is signified by the number of the light fastness standard fabric that change color as the test specimen. It is describe as the numerical score for light fastness.
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