srrc experimental n0-twist yarn system

a method for producing a no-twist cotton yarn directly from card webg has been developed. the technique is made possible by a unique device for aligning the fibers in the web to form a no-twist yarn in a one-step operation. this progress report presents details of this new technique. 4 refs

yarns and yarn manufacture, papers presented at symposium, 1979

this conference proceedings includes 16 papers on recent developments in the manufacture of yarns and in the design of yarn-making machines. topics discussed include the buildup of deposits in the rotor groove during spinning, the recovery and rotor spinning of waste fibers, the spinning of fine yarns on the open-end rotor, preparation of..

texas mill breaks cotton dust barrier

the textile division of the texas department of corrections in huntsville, tex. , has set a tough prime specification for its new yarn-making installation $em dash$ a complete automatic cotton and/or man-made fiber processing system that passes all present u. s standards. the highest cotton dust level in the plant is 0. 19 mg/cu m in the ..

identification and processing of honeydew-contaminated cottons

data are presented which show that the extreme stickiness of some 1977 acala sj california cottons was caused by localized areas of high sugar contamination tentatively identified as honeydew secretions from whiteflies. processing of these cottons under normal conditions was virtually impossible because of the stickiness. tandem carding a..

effect of single and double carding on comber noil removal and yarn properties

in the reported experiments, a cotton was double carded at twice the speed as it was single carded, processed into sliver laps, and combed with identical settings. the double carded laps were also combed at two other settings. the increase in carding speed for double carding improved the fiber parallelization, which reduced the comber noi..

french yarn spinner locates in south carolina

one the world's leading spinners of fancy yarns, filature saint andre, france recently began production in a new plant located in cowpens, s. c. the yarn plant is unique in that it has no opening or carding. the plant can (and does) process all fibers including acrylics, wool, cotton, rayon, etc

improved srrc no-twist yarn system

progress has continued on the srrc no-twist yarn system since the work was originally announced at the 1979 natural fibers textile conference. various mechanical modifications that have allowed the production rate to reach 1. 5 m/second (100 yards/minute) are discussed. yarn properties of no-twist yarns made from three different staple le..

dust problem in cotton spinning

this article deals with the dust problem in cotton spinning that has been getting more acute over the last 10 years or so. above all the first process stages - opening and carding the cotton in the spinning mill - are crucial to the downstream processing of this fibre. the associated dusts in various grain sizes are detrimental not only t..

particle size distribution of submicron cotton dust using transmission electron microscopy

in the reported experiments, the particle size distribution (psd) of dust generated while processing cotton on a card and collected on grid substrates by free settling was examined by transmission electron microscopy (tem). the dust was collected in a model card room immediately after stopping the card, as well as when the card was in ope..

mill fires: automatic prevention. . . and cure

in collaboration with the swiss firm cerberus ag, reiter machine works ltd evolved a combined fire alarm and extinguishing system which comprises spark detector, evaluation stations and extinguishing installations. the system is designed for detecting fires at an early stage, so that suitable counter-measures might be initiated quickly. i..