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Color Loss to Bleach Research ] Color Loss to Oxide of nitrogen and sulfur ] Defective Wool ] Color Loss to Sun Light Research ] Defective Dye ]

Colors that are lighter than the surrounding unaffected areas are the result of color loss. Colors that are darker than the surrounding unaffected areas are the result of something added. Shades that end-up changing in different light and diminish or disappear in direct intense light are the result of texture variations, usually from over aggressive mechanical action.

An inspection report involving a color loss from defective dye due to forces of nature requires a laboratory test for either light, o-zone, or gas fading. Of these, only light fading has recognition from UM 44. My own professional opinion is that anything below a '4' after two cycles of testing constitutes a defect in manufacturing. Four or over indicates a problem of too much light, ozone, or gas, etc. The test for each of these is as follows:

Colorfastness to light (xenon arc) (2 cycles)  AATCC 16 E
Colorfastness To O-Zone (High Humidity) (2 cycles)  AATCC 129
Colorfastness To O-Zone (2 cycles)  AATCC 129
Oxides of Nitrogen (3 cycles)  AATCC 164
Colorfastness to Burnt Gas (3 cycles)  (such as in case of furnace) AATCC 23
Colorfastness to Heat (2 cycles)  AATCC 117

Use the company below for your testing.

INDEPENDENT TESTING LABORATORIES
1503 Murray AVE.
Dalton, GA 30720
Bus: +1 (706) 278-3013
Bus Fax: +1 (706) 272-7057

An inspection report involving a color loss from defective dye from bleeding or crocking can occur on multicolored nylons where cross dyeing has been used. In this system, one dye bathe dyes the carpet two different colors. One of the dyes will be an acid dye and the other will likely be cationic. The cationic dye will attach to a modified nylon, but sometimes will not remain color fast when cleaned with anionic detergents, like CHEMSPEC ONE CLEAN, FORMULA 77, or PROCHEM DRY SLURRY, or STEAM GENIE FABRIC RINSE. Thus this problem shows up as a result of cleaning. The test using the Gray Scale Card is rated between '1' and '5'. From a professional opinion, anything below a 'four' is a defect.

Colorfastness to Water AATCC 107
Colorfastness to shampooing AATCC 138
Colorfastness to Steam Cleaning AATCC 171
Resistance to Crocking (For Carpet) AATCC 165
Resistance to Crocking (Upholstery Fabric) AATCC 8

Examples of color loss problems are:

American Association of Textile Chemists and Colorists

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