검색어 "" 에 대한 총 22385 건의 검색결과를 찾았습니다.
chemical composition of cotton dust and its relation to byssinosis: a review of the literature
in this paper, the literature on the chemical composition of cotton dust and its relation to byssinosis has been reviewed. it appears that the component of cotton dust that is a major cause of byssinosis may be an aminopolysaccharide. recommendations are made for further studies that might point the way to reducing or eliminating the byss..
chemical composition of cotton dusts $em dash$ 2. analyses of samples collected in a model card room
the ash and protein contents of pneumafil (pn) trash samples collected in a model card room and of the aqueous extracts of these samples are reported. the average ash content of these samples is 12. 5 ( $sigma$ $equals$ 4. 2). the average ash content of the dried aqueous extracts of these samples is much higher than that of the raw sample..
energy-quality considerations in modeling cotton ginning systems
the paper reports on a study that is part of a long-range research program to investigate each phase of the cotton ginning process as it relates to profit potential for the cotton producer and ginner. the study objectives were to determine the effects of individual processing machines and of numerous combinations of machines on lint quali..
dust-control additives for cotton and cotton/polyester blends**1
selected additives applied to cotton at levels below 0. 4 prior to carding can reduce dust levels in carding by 40 to 70 the general effects on processing and yarn quality are minimal card-room dust level of a 50/50 cotton/polyester opening-room blend was reduced 73 by a low level of additive. dust levels in the range 300 to 600 $mu$ g/m*..
natural fibers textile conference, 1st, 1978
proceedings of 17 papers delivered at the meeting devoted exclusively to the subject of processing and applications of natural textile fibers. topics covered in the march issue of the trj include $em dash$ high capacity ginning and fiber breakage; dust-control additives for cotton and cotton/polyester blends; spinning of wool with the rot..
electrical stimulation of fabric filtration (esff) for cotton dust control
esff is a technique which promises to give improved performance in the filtration of flyash from the effluent gas of coal combustion the present studies were made to assess the feasibility of the same technique in the removal of cotton dust from the air of a cotton processing plant. particle size analysis of cotton dust generated from var..
eliminating respirable dust from the cotton workplace by purifying humidifier water: a cost analysis
vertical-elutriator cotton-dust samplers collect all particles with aerodynamic diameters $less than$ 15 $mu$ m, including those whose origin is not in the cotton supply. one process giving rise to such non-cotton dust particles is the spray-drying of dissolved solids in the water supplied to the plant humidification system based on a sur..
sampling and analyzing cotton dust
the problems in sampling cotton dust in air-cleaner systems and in work areas are elucidated, and solutions are suggested. devices for separating the fine dust and fine lint fractions to obtain a true $left double quote$ dust $right double quote$ sample are described data that indicate the fine lint content of samples from card room air a..
processing performance and yarn quality of unopened-boll-harvested cotton
experimental data are presented which demonstrate that the processing performance of unopened-boll-harvested cotton was inferior to that of normally-harvested cotton, characterized primarily by fibers sticking to the rolls of processing machinery. the stickiness was attributed to high sugar levels. yarn quality of unopened-boll cotton was..
cotton-jute blending $em dash$ changes in blend composition during processing
in the reported experiments, the composition of cotton-jute blends, at various stages of processing from blowroom to ring frame, has been analyzed using an x-ray diffraction method. the study revealed that the reduction in the nominal jute content observed in the ring yarn is due to preferential losses of this fiber under the licker-in re..