engleski

The optimization of di(cyanstyryl) derivative application to polyester fabric and its blend

UV protection can be achieved by polyester fabric due to benzene rings in the polymer molecule, but also has small absorption due to high fibre crystallinity. Blended with cotton, hydrophilicity and comfort improves, but UV protection is getting lower. It is well known that optical brightening with fluorescent whitening agents (FWA’s) contributes to UV protection, as well as fabric whiteness. In this paper, the new FWA by DyStar, Sera® White P-N, a di(cyanstyryl) derivative, was applied in high concentration range (0.1, 0.5, 1, 5, 10, and 20% owf) on standard polyester and polyester blend with cotton fabrics by WFK for the purpose of optimization. Therefore, the fluorescence of FWA solutions was determined on fluorometer HITACHI F-7000 FL. After fabric treatment with FWA, whiteness (WCIE) according to ISO 105-J02:1997, and tint value and deviation were calculated automatically from the measured remission on a remission spectrophotometer Spectraflash SF 600 PLUS-CT, tt. Datacolor. The UV protection ability was determined according to AS/NZS 4399:1996 using transmission spectrophotometer Cary 50/ Solascreen, Varian.

polyester fabric, polyester/cotton blend, fluorescent whitening agent (FWA), whiteness, tint, UV protection

nije evidentirano