Colour Fastness of Acid Dyed UAS Sheep Breed Wool to Washing, Sunlight and Hot Pressing.

Tests evaluated the washfastness, lightfastness, and colorfastness to hot pressing of acid dyed wool fiber and yarn samples from the UAS breed of sheep. Both fiber and yarn samples showed very good washfastness. Fiber and yarn sample lightfastness ranged from poor to excellent. and yarn samples, whereas the blue dye showed poor lightfastn..

Dyeing NatureWorks Fibres.

BASF Corporation created guidelines for dyeing Cargill Dow Polymer NatureWorks fibers to achieve high colorfastness using lower temperatures than those required for polyethylene terephthalate fiber manufacture. Polylactide polymer NatureWorks fibers have a lower refractive index and require lower dyeing temperatures than do conventional p..

Buyers' Guide 2001.

This issue of Chemical Engineering contains the 2001 Buyers' Guide, which is closely integrated with the Internet version. The print version contains new manufacturers and service providers for the chemical process industry. Analyses of market trends led to the development of new product and service categories within such general categori..

AIRO Keeps on Inventing Fashing.

Biancalani's AIRO kier fabric softening, drying, and washing machine is sealed to ease the pressure/negative pressure balance between the air blown in and sucked out for more efficient air transport and absolute process repeatability. Rotating the kier into a more horizontal position increases the suirface available for fabric folding alo..

Prospects of Textile Wet Processing Machinery in the 21st Century.

An overview of improvements in wet processing machinery focuses on yarn preparation; fabric inspection; such chemical processes as scouring, singeing, desizing, and bleaching; aftertreatments; and testing. Yarn sizing machines, yarn hank preparation machines, and yarn packaging machines ensure greater dyeing uniformity and environmentally..

Determination of the Effects of Fabric Construction and Fabric Speed on Interchange Factor for the Wet-on-Wet Pad Batch Dyeing of 50/50 Polyester/Cotton Single Jersey Knitted Fabric

Padding processes are commonly used to apply solutions to fabric. These processes are typically classified as wet-on-wet or wet-on-dry. In a wet-on-wet process, solution is padded onto a wet fabric, while a wet-on-dry process uses a dry fabric. When the solution concentration on the fabric is considered critical, fabrics is typically fed ..

Contribution of PET to the Photodegradation of Disperse Dyes

A study of the contribution of polymer to the degradation of disperse dyes evaluated the physical and chemical changes occurrings in undyed polyester films exposed to natural and artificial light and correlated the results with dye fadings. Polyester films irradiated before and after dyeing experienced more color loss than did films that ..

Treatment of Desizing Wastewater Containing Poly(vinyl alcohol)by Wet Air Oxidation

Scientists studied the efficacy of wet air oxidation for the treatment of disizing wastewater from manmade fiber manufacturing plants. Experiments at an oxygen pressure of less than 2 millipascals showed that chemical oxygen demand(COD) increased from 15-65 percent as the temperature increased from 150-250 degrees centigrade over 30 minut..

Enzymatic Decolorization of Textile Dyeing Effluents

An investigation into the use of phenol oxidases from the fungi Pleurotus ostreatus, Schizophyllum commune, Sclerotium rolfsii, Neurospora crassa, Polyporus species, Trametes villosa, and Myceliophtora thermophila to decolor textile dyes revealed that all enzyme preparations efficiently decolored rates depended on the individual enzymes. ..

Combinative Sonolysis and Photocatalysis for Textile Dye Degradation

Sonolysis and photocatalysis are conventional oxidation processes used to degrade residual dyes in textile wastewater. Researchers evaluated the merits of combining the techniques to degrade naphtol blue black, a common azo dye. High frequency ultrasonics and ultraviolet photolysis simultaneously and sequentially resulted in an additive e..