Changes in Wool Colour. Part II: Dumping and Storage.

Research assessed color changes in 15 lots of merino and crossbred wools after two years of storage. The study determined the relationship between incubated color and clean color; the effects of storage on staple length and strength, resistance to compression, potassium content, and pH of extracted water; and the effect of dumping method ..

Surface Layer of Wool. II. Dityrosine in Wool.

Research on the surface layer of wool determined dityrosine concentration in wool and in its morphological components, the cortex and cuticle. Dityrosine sites include the tyrosine-rich proteins. Within the cuticle, dityrosine occur in the intercellular cement and the A-layer. Within the cortex, dityrosine occur in the intermicrofibrillar..

Surface Layer of Wool. I. Dityrosine Synthesis and Characterization.

Research on the surface layer of wool performed an assay of the enzymatic oxidation of tyrosine to dityrosine to establish the optimal conditions for dityrosine synthesis. Modifications to the procedures for dityrosine synthesis and purification resulted in a higher yield (10 percent) of pure dityrosine. Modifications included the use of ..

Rabbit, Viscose Rayon Fibres.

A study examined the comparative physical and chemical properties of Angora rabbit and viscose rayon fibers. Angora and rayon fibers showed similar fineness values, which is advantageous for blending. Rayon fibers had higher tenacity values in the wet and

Damage to Cellulose Fabrics

Oxycellulose and hydrocellulose damage in cotton, linen, rayon, ramie, and acetate fabrics and blends results in curcular holes, tears, or weak places, sometimes accompanied by a yellow or rust colored stain. Oxycellulose damage results from contact with

Cotton Dust Potential Associated with Microbial Decomposition during Storage.

Researchers examined the feasibility of using high cotton moisture content during storage to reduce cotton stickiness. An experiment added water to cotton to bring the moisture content to 15 percent, 30 percent, and 40 percent, then stored the cottons for

Supima Licensing Program Bearing Fruit Overseas.

Reasons for the increase in world market share for Supima coton include price competitiveness, reliable supply, efficient delivery, consistently high quality, and informational and promotional support. The monthly newsletter of the Supima Association prov

Cotton Contamination Survey 1997.

The International Textile manufacturers Federation surveyed its membership to determine the levels of and problems with cotton contamination. Data showing countries participating in the 1997 survey, 1997 sources and degrees of contamination, 1989-1997 summary of degrees of contamination, most and least contaminated cotton descriptions by ..

Pima Growers Fighting Uphill Battel against Egypt

Despite an increases in its supply-use ratio from 19 percent to 58 percent in 1997, Egypt refuses to reduce its supply of pima cotton. Egypt recently began harvesting its 1.6 million bale pima cotton crop. Policy decisions made by the Egyptian government

Cotton Scenario.

Cotton accounts for 65 percent of raw materials consumption and 80 percent of exports in the Indian textile industry. Indian cotton area exceeds 79.3 lakh hectares, which equals approximately 25 percent of world cotton acreage and places India first in th