AATCC 8-2004 Download


Colorfastness to Crocking: AATCC Crockmeter Method
standard by American Association of Textile Chemists and Colorists, 01/01/2004

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Purpose and Scope

1.1 This test method is designed to determine the amount of color transferred from the surface of colored textile materials to other surfaces by rubbing. It is applicable to textiles made from all fibers in the form of yarn or fabric whether dyed, printed or otherwise colored.It is not recommended for use for carpets or for prints where the singling out of areas may be too small using this method.

1.2 Test procedures employing white test cloth squares, both dry and wet with water, are given.

1.3 As washing, drycleaning, shrinkage, ironing, finishing, etc., may affect the degree of color transfer from a material, the test may be made before, after, or before and after such treatment.

2. Principle

2.1 A colored test specimen is rubbed with white crock test cloth under controlled conditions.

2.2 Color transferred to the white test cloth is assessed by a comparison with the Gray Scale for Staining or the Chromatic Transference Scale and a grade is assigned.

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