Air pollution and its control. Ⅰ

Major air pollution problems are discussed, with particular attention to the Indian context. Air quality for selected towns is shown in tabular form. Threshold limiting values of gaseous pollutants are also tabulated. Air pollution caused by textile mills and was of mitigating polluting emissions are discussed.

Structured fibre material comprised of composite fibres coiled around crimped short fibres

A structured fibre material having a three-dimensional network comprises first non-elastic, crimped, short fibres ad second three-dimensionally-crimped, composite fibres. The fibres are partially interlocked with each other and partially heat-bonded to each other at their points of contact. The second fibres are composed of a non-elastic ..

Process for making viscose staple fibres

A method of manufacturing solid viscose rayon fibres of 0.5-5.0 dtex and having a multi-limbed cross-sectional shape comprises: extruding viscose through a spinneret having several multi-limbed extrusion holes into a spin bath containing sulphuric acid, zine sulphate and sodium sulphate to form a tow of solid filaments; stretching the fil..

Lyocell fibre-could it eventually replace viscose?

The chairman of Lenzing AG, currently the world's biggest producer of viscose rayon and modal fabrics, has suggested that lyocell fibres could eventually replace cotton in contempory mass markets for the natural fibre, and may even replace traditional viscose rayon inmost applications in the longer term. The advantages of lyocell fibres a..

Method and apparatus for processing chopped fibres from continuous tows

An apparatus for forming and dispensing chopped fibres from tows comprises a pumping unit, a cutter mechanism connected to the inlet of the pumping unit, feed means for feeding a first and a second tow into the cutter mechanism, a sensor for sensing the feed rate of the two tows, and a control means for receiving a signal from the sensor ..

Technological Principles of Flax Fibre Quality Control.

A research project standardized and modernized the classification principles used for assessing the quality of scutched flax fibers. The conventional method of quality evaluation relied on a general mean number derived from a calculation that accounted for the scutched fiber mass, hackled fiber mass, and the mass of the combings. A new fl..

A New Objective Method for Assessing Fibre Arrangement in Fibrous Webs.

No objective measurement techniques exist for the systematic examination of the structural features of fiber assemblies. Researchers have developed an objective measurement technique that uses image analysis methods to identify and characterize the fiber states in the fibrous web or sliver sample. The process of image analysis comprises t..

Wool Blends.

The recent previews of fabric collections for autumn/winter 1996 reveal that developments in fabric technology have generated a deluge of innovative textures, finishes, and blends. The substantial price hikes in raw wool have stimulated fabric manufacturers to experiment with a variety of wool blends to contain costs, and executives at ma..

Effect of Fiber Length on Young's Modulus of Paper.

An experiment studied the effect of fiber length on the elastic modulus of a random sheet of paper. According to the finite fiber length model, the elastic property of the sheet of paper in a lower density clearly depends on the length of the constituent fibers. A plot of the experimental values of the elastic modulus of the sheets of pap..

New Wool Plus Lycra

Du Pont and the International Wool Secreatariat recently introduced a new product designed for high quality knitwear, called New Wool plus Lycra. This blend of fibers combines the natural luxury of virgin wool with the technical performance of elastane fibers. This joint venture will use a worldwide customer oriented marketing and brandna..