Dyeing and Fastness Properties of Recycled PET Fabrics Dyed with Black and Grey Disperse Dyes for Automobile Interior

Recently, a domestic standard of light fastness test for automotive interiors was fortified to 3rd grade under the exposure of xenon light for 500 hrs. In this study, a high light fastness anthraquinone-based disperse dye Synolon Black AK-NB and Synolon Dark Grey AK was utilized to enhance the dyeability and fastness of recycled PET fabric depending on the concentration of disperse dye (1-6% o.w.f.) and light fastness enhancer (2- 4% o.w.f.). The Synolon Black AK-NB over 4% o.w.f. with 4% o.w.f. of light fastness showed higher light fastness over the 3rd grade. The light fastness was further enhanced with the increase of the concentration of the dye, where the 4th grade of light fastness was found in the Synolon Black AK-NB concentration of 6% o.w.f. On the other hand, 6% o.w.f. of Synolon Dark Gary AK with 4% o.w.f. of light fastness enhancer exhibited the light fastness of 3rd grade, which indicates the suitable dyeing conditions for automotive interior. The fastness of abrasion, washing and rubbing depending on the concentration of the disperse dye and light fastness enhancer exhibited high fastness over 4-5th grade.

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Dyeing and Fastness Properties of Recycled PET Fabrics Dyed with Black and Grey Disperse Dyes for Automobile Interior

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