Effect of magnetic treatment of the process water on the afterwashing of fabrics

The effect of treating the process water in a magnetic field on afterwashing of cotton fabrics after dyeing with direct dyes and printing with reactive dyes is studied. The treatment is shown to accelerate the mass exchange processes.

Environmentally-friendly colouring process for carpet piece goods

The increasing demand for environmentally friendly processes as far as it affects the dyeing of piece goods for carpets is discussed. Improvements in batch and continuous dyeing processes are reported and problems arising from the development of new fibres and finishes are considered. Closer cooperation between all involved sectors, ie ca..

Adsorbable organic halogens in textile effluents

In recent years legislation on environmental pollution has become more and more stringent. The parameter AOX (adsorbable organic halogen) was developed for the detection of organohalogens in drinking water and effluents. In this paper, restrictions on the discharge of various chemicals into waste water are reviewed. In the first part of t..

Preparation procedures for woven cotton and polyester/cotton fabric. II. Oxidative desizing with hydrogen peroxide

Oxidative desizing with sodium hydroxide in the presence of hydrogen peroxide has been investigated as a preparatory treatment for dyeing and printing cotton and polyester/cotton woven fabric. Using statistically designed experiments, the effect of time a

Investigation of the effect of complex ions on the desizing of cotton fabrics

Multifactorial analysis and atom absorption analysis are used to investigate the effect of complex ions on the enzymatic and peroxide desizing of cotton fabrics.

New wet finishing system for knitted and woven fabrics

A multipurpose wet processing range from Babcock for woven and knitted fabrics consists of three main units; the Spray-Tex spray scouring unit, the Traflo-Tex suction drum scouring unit, and the Store-Tex dwell unit. The operation of each unit is described and illustrated. Practical experience with the range is discussed. The examples inc..

Integrated water preparation colorized effluent treatment at a knitwear factory

Two methods for chemically treating dyeing effluents from a knitting mill are evaluated. The efficiency of dye removal depends on cake dose and magnesium hydroxide concentration.

Treatment of wastewater from the textile industry

The plant used for treating effluent from a textile mill in Cyprus is described. The effluent is treated in three stages, and its composition after each stage is studied. The water thus obtained is recycled to irrigate crops.

Possibilities for reducing the pollutant load in effluent

Examples are described of how to reduce the pollutant load in effluent and how some harmful substances can be removed from the water. The examples come from research projects at the DTFZNW Germany. They include the use of cyclodextrins in place of surfactants, the formation of dye complexes of low solubility with the ligand cucurbituril, ..

Micro-electrodes in textile analysis techniques. I. Principles and equipment. Printing pastes

The principles behind the use of micro-electrodes for voltammetric studies are explained. A measuring cell for studying redox processes in thickener pastes with the aid of micro-electrodes is described.