Antibacterial and soluble rayon

A Korean inventor discloses a water-soluble or water-repellent and antibacterial or flame-retardant rayon, in US Patent 6 344 077. Young-keun Hong of Seoul’s invention is based on a line of earlier developments, mainly in Japan, and involves introducing chitosan or alginic acid (or their derivatives) in an aqueous solution. The fibre is ..

Eco-fibres and eco-friendly textiles

“Environmental Issues: Technological Options for Textile Industry” is currently a dominating theme. The development of eco-fibre such as Biopol and Lacti through biotechnology is presented. The growth of Lyocell is noted and the use of naturally coloured cotton through specially developed seeds to obviate synthetic dye pollution. Eco-st..

X-static: A fibre with silver properties (French) (X-static: Une fibre aux proprietes d’argent)

X-Static fibres, the silver fibre, have a layer of pure silver permanently bonded to its surface. This polyamide 6.6 silver-treated fibre retains itstraditional textile and tactile propertie and offers the benefits inherent to silver. This fibre is claimed to be permanently antimicrobial, tests after 250 washes exhibiting practically no d..

BT cotton: Sowing the seeds of controversy

The debate in Gujarat over the use of genetically modified (GM) cotton seeds, called BT cotton, which has the ability to eliminate the menace of the bollworm and increase yield, is reviewed. Farmers, politicians, intelligentsia and scientists are divided. The Government has not given clearance for their introduction but farmers in Gujarat..

Naturally Coloured Cotton -- Developments and Prospects.

The K/S value of naturally colored green and brown cotton fibers increased after one washing and decreased after additional washings. Scouring increased color depth. Green and brown cotton had poor fastness to hypochlorite reducing agents decreased K/S values. Potassium dichromate reducing agents yielded a reddish tonal effect. Potassium ..

Tencel A100 -- The Deep Dye Cellulosic Fibre

Accordis’s Tencel A 100 nonfibrillating cellulosic fibers do not require enzyme processing and offer greater processing and dyeing versatility. Conventional jet and overflow dyeing machines use process cycles similar to those of cotton to dye Tencel A100 fibers. Tencel A100 is chemically crosslinked in tow form after it is washed but bef..

Polyacrylic Fibers

Polyacrylonitrile fibers feature linear macromolecules with a polyacrylonitrile mass ratio of at least 85 percent. Modacrylic fibers feature linear molecules with an acrylonitrile mass ratio of at least 50 percent and less than 85 percent in the chain. An overview of polyacrylic fibers addresses DIN ISO 2076 definitions; fiber invention a..

New Trends in the Utilisation of By-Products of Fibre Crops Residue in Pulp and Paper Industry, Building Engineering and Interior Furnishing.

Applications for shives and other waste material from flax, hemp, jute, ramie, kenaf, cotton, and coir growing and processing include paper, building materials, and home furnishings. Such waste materials yield cellulose, structural lignocellulosic boards, fibrous insulation, and upholstery composites. Reclaimed cellulose from agriculture ..

Biosynthesis of Flax Fibres: Prospects for Biotechnology.

The genetic sequencing of glycosyltransferases facilitates remodeling of pecans and isolation of flax fibers. Researchers extended the catalog of encrusting polymers of fiber secondary walls with long chains of beta0(1-4)-D-galactan branched onto a rhamnogalacturonan backbone, arabinogalactan proteins, and glycin rich proteins. Immunogold..

Global Trends and Newest Achievements in Flax and Hemp Processing and Applications.

Biotechnologies to improve the disease and logging resistance of hemp and flax plant varieties, increase straw yields, increase fiber fineness, and control fatty acid content will increase hemp and flax fiber applications. The Institute of Natural Fibres in Poland is conducting research projects that will modernize production and processi..