AATCC 165:1999 pdf download.Colorfastness to Crocking: Textile Floor Coverings一AATCC Crockmeter Method
1. Purpose and Scope
1.1 This test method is designed to determine the degree of color transfer from the surface of textile floor coverings to other surfaces by rubbing. The intent is to reproduce as near as possible true-to-life situations in all constructions whether dyed, printed or otherwise colored.
1.2 Test procedures employing white test cloths, both dry and wet with water, are given.
1.3 As the use surface of a textile floor covering may be exposed to various conditions in true-to-life situations, such as soil, stains, cleaning, shampooing and application of chemical treatments such as antisoi Is, antistats, anti microhials, etc., the test may be made before, after or before and after such situations.
2. Principle
2. 1 A colored test specimen held on the base of a crockmeter is rubbed with a white test cloth under conirolled conditions.
2.2 Color transferred to the white test cloth is rated by comparison with the AATCC Chromatic Transference Scale or Gray Scale for Staining and a grade is assigned.
3. Terminology
3.1 carpet, n.—all textile floor coverings not designated as rugs.
3.2 colorfastness, n.—the resistance of a material to change in any of its color characteristics, to transfer of its colorants(s) to adjacent materials or both, as a result of the exposure of the material to any environment that might be encountered during the processing, testing, storage or use of the material.
3.3 crocking, n.—a transfer of colorant from the surface of a colored yarn or fabric to another surface or to an adjacent area of the same fabric principally by nibbing.
3.4 rug, n.—a textile floor covering of limited area which is complete in itself and is intended for use as a partial covering of a floor or another floor covering.
12.1 Precision. An interlaboratory test was conducted in 1997 to establish the precision of the test method. Testing was conducted under the normal atmospheric conditions of each laboratory and not necessarily under ASTM standard condi-tions. Two operators at each of four labo-ratories tested and rated six fabrics on two consecutive days, both wet and dry crock. Rating was performed using the Gray Scale for Staining and the AATCC Chromatic Transference Scale.AATCC 165 pdf download.