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Dyeing Printing & Finishing

BASF Ultraphor® Hinders Yellowing

Germany-based BASF AG reports its optical brightener Ultraphor® AUX-NY prevents the yellowing of light-colored clothing. Such yellowing may be caused by storage in film packaging material containing a colorless butylated hydroxy toluene (BHT) additive that can transfer to garments and react with nitrogen oxides from vehicle exhausts.

The product, which can be used on all white and pastel-colored textiles, stops yellowing by preventing nitrogen oxides from reacting with the BHT molecule. Because it does not foam in the production process, fabric treatment requires no additional silicone antifoams.

Additionally, Ultraphor-treated fabrics meet Oeko-Tex Standard 100 (Product Class I) requirements. The brightener also is safe for use on babies’ and children’s clothing, according to BASF.

March/April 2006