Colorfastness of Environmentally-Improved Fabrics.

Researchers studied the colorfastness of environmentally improved fabrics. Fabrics used in the study included Fortrel Ecospun, Tencel, low impact dyed cotton, and organically grown cotton. The study dyed the fabric samples and subjected them to accelerated exposure to light or laundering with a variety of detergents. A HunterLab Spectro-C..

Wet Processing of Silk.

A study evaluated the advantages of softening the water used in silk wet processing. Researchers compared the effects of Borewell hard water (250 ppm) with the effects of water softened via a commercially available cationic water softener on the silk degumming, bleaching, dyeing, and printing processes. Gum loss and whiteness for soft wat..

Benninger: Textile Finishing

Benninger AG and its partner, Stentex GmbH, will offer a vareity of machinery and equipment for washing, pretreatment, dyeing, mercerizing, and finishing at ITMA 1999. Benninger will exhibit the Ben-Wash line of machines, including the Extracta, Fortracta, and Tempacta; Ben-Bleach line, including the Reacta; Ben-Dimensa mercerizer; Ben-Co..

Denim Series -- Part XIII. Denim Washings: The Revolutionary Process that Changed the Mundane Image of Denim

Because cotton denim yarns dyed with indigo dyes have a ring dyed effect in which only the outer surface o the yarn is dyed, washing processes can impart a variety of surface effects to denim fabric. Popular washing techniques include conventional washing, stone washing, acid washing, denim bleaching, caustic washing, bata washing, and sa..

PROCESS FOR FIBER ORIENTATION AND DIMENSIONAL STABILITY.

Kuster's Memotex machine orients yarns in cotton and cotton blended fabrics by stretching the material in the lengthwise and widthwise directions. The Memotex machine can be used before or after such finishing processes as pretreatments, pretreatments with bleaching, and mercerization. The fabric is stretched by the counteraction of two c..

OXIDATIVE DECOLORATION OF TEXTILE WASTEWATER WITH HYDROGEN PEROXIDE

Hydrogen peroxide can be activated with ferrous salts in an acid medium, becoming an effective oxidative agent that can be used in the decoloration of wastewater from textile finishing plants. An examination of wastewater decoloration using hydrogen peroxide discusses the process and its effects on reactive, direct, metal complex, pigment..

ADSORBABLE ORGANIC HALOGEN (AOX) COMPOUNDS IN BLEACHING WASTEWATER

Methods of reducing AOX compounds from the wastewater generated from the bleaching of cotton with chlorine-containing bleaching agents are discussed. The formation of AOXs during the bleaching process and the identification of the fractions of natural cotton companion substances that are decisive in the formation of AOX compounds are inve..

Computer Colour Matching in Textile Colouration

Computer color matching (CCM) techniques reduce energy and labor costs and increase the accuracy of operations in dyeing facilities. CCM predicts formulas for shade reproduction. Each system involves color measurement via a spectrophotometer, logic software to express the numerical color value, and computer hardware for data processing. C..

Innovation in the Dyeing of PES/CEL Textiles

Innovative approaches to the dyeing of polyester/cellulosic fabrics, which hold a 70 percent market share among fabric blends, are presented. Most important is the quality of the pretreatment cycle, which includes removal of spinning and knitting residues and control of dimensional stability, residual moisture level, degree of whiteness, ..

The Benefits of Controlled Coloration

To meet the demand for shorter lead times, right first time manufacture via coloration control has become the norm for progressive dyeing plants. Increasing production efficiency and eliminating the cost of nonconformance while minimizing the impact on effluent load has led to the development of controlled coloration technology. By unders..