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Instruments as per IS 766-1988

Standard Method to determine the color fastness of Textile Materials of Rubbing


This standard prescribes a method for determination of color fastness of textile materials of all kinds and, in all forms, including textile floor coverings to rubbing off and staining other materials. The method is applied to laid textile floor covering or to a detached sample or yarns. Two tests are made, one with a dry rubbing cloth and the other with a wet rubbing cloth.


Specimens of the textile are rubbed with dry and wet rubbing clothes. Two alternative sizes of rubbing finger are specified, one for pile fabrics and the other for other textiles. The staining of the rubbing, clothes is assessed with the gray scale.

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