AATCC 8:2004 pdf download.Colorfastness to Crocking: AATCC Crockmeter Method.
1. Purpose and Scope
1.1 This test method is designed to de- termine the amount of color transferred from the surface of colored textile materi- als to other surfaces by rubbing. It is ap- plicable to textiles made from all fibers in the form of yarm or fabric whether dyed, printed or otherwise colored. It is not rec- ommended 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, shrink- age, ironing, finishing, etc, may affect the degree of color transfer from a mate- rial, the test may be made before, after, or before and after any such treatment.
2. Principle
2.1 A colored test specimen is rubbed with white crock test cloth under con- trolled conditions.
2.2 Color transferred to the white test cloth is assessed by a comparison with the Gray Scale for Staining or the Chro- matic Transference Scale and a grade is assigned. 3. Terminology 3.1 colorfastness, n.- -the resistance of a material to change in any of its color characteristics, to transfer of its color- ant(s) to adjacent materials, or both, as a result of the exposure of the material to any environment that might be encoun- tered during the processing, testing, stor- age or use of the material.
3. Terminology
3.1 colorfastness, n.--the resistance of a material to change in any of its color characteristics, to transfer of its color- ant(s) to adjacent materials, or both, as a result of the exposure of the material to any environment that might be encoun- tered during the processing, testing, stor- age or use of the material. 3.2 crocking, n.- -a transfer of color- ant from the surface of a colored yarn or fabric to another surface or to an adjacent area of the same fabric principally by rubbing.AATCC 8 pdf download.