Effect of Cotton Fibers and Their Trash Characteristics on the Performance of Spinning Preparatory Processes (original) (raw)
Related papers
Cotton waste recycling: Quantitative and qualitative assessment
Resources Conservation and Recycling, 2008
The waste produced in a cotton textile mill is an important factor in determining the operating cost and therefore in influencing mill profits. In this paper, we examine the waste percentage and the good fibre fraction for two cleaning machines and a card. The cleaning behaviour in spinning preparation, of each waste, is predicted by determining the trash content and the preparatory processing. The quality of recovered fibres is discussed and compared to other virgin cotton. In order to appreciate these fibres, we study the effect of cotton wastes on the rotor yarn quality. The results indicate that generated wastes contain about 50% good fibre. This secondary raw material showed good cleanability and characteristics; therefore it can be blended in a proportion between 15 and 25% without hardly noticeable changes in rotor yarn quality.
Utilization of Cotton Spinning Mill Wastes in Yarn Production
Textile Industry and Environment, 2019
Efficient use of natural resources and utilization of recoverable wastes are getting more and more important day by day since recovering wastes have both economic and environmental benefits. As the source material costs constitute the majority of the yarn production costs, decreasing raw material costs provide considerable advantages for spinners. From the point of textile manufacturing, various production wastes can be reused in textile industry. In each step, from ginning (for cotton fibers) to end product formation, recyclable/recoverable waste materials are generated. However, mainly polyester products are recycled (r-PET) and used again in textile industry by 100% or in blends with other man-made or natural fibers. Compared to research on r-PET, recovered cotton fibers inspired interest recently. The main objective of this study is to fill the gap in the literature via investigating the properties of the yarns produced with recovered cotton wastes, generated in different sources. For this purpose, spinning mill waste types were selected. In this experimental study, different waste types (card waste, blowroom waste, and fabric waste) and blending ratios were used. As a conclusion, the effect of waste type and blend ratio on the physical and mechanical properties of the yarns and the fabrics, produced with virgin and waste cotton fibers, were analyzed.
International Journal of Textile Science, 2015
Rotor spun yarns from recycled cotton spinning wastes were manufactured by means of rotor spinning process and tested for yarn imperfections and strength.Results of studies are examined the effect of cleaning intensity,cylinder speed and combing roller speed of rotor frame by using box and behnken experimental design. Observing the value of co-efficent of determination,it can be said that the properties of yarn imperfections affectedsignificantly by our selected parametres in compared with the incidence of yarn strength. Yarn imperfections (Thick place and Neps) results improve with increasing cylinder speed although higher cylinder speed shows slightly different results in case of yarn neps. Increase of opening roller speed improves yarn imperfections quality at lower cleaning intensitysetting of UNIclean and although further increase of opening roller speed hardly improves the results of yarn neps(+280%) but increases the value of thick place in yarn. Lower cleaning intensity setting gives better rotor yarn strength produced by using 100% recycled cotton wastes. Experiments based on a 60 tex rotor yarn indicate that our selected independent variables influence rotor yarn quality not linearly but quatradically with few exceptions.
Effects of cotton textile waste properties on recycled fibre quality
Journal of Cleaner Production, 2019
The market for recycled cotton appears to be growing; however the main obstacle for cotton recycling is the lower quality of the resultant products. Therefore, detailed investigation of recycled cotton processes from separation/shredding to finishing is of great importance. This contribution reveals the effects of the type of cotton based textile wastes on recycled fibre properties after shredding. For this purpose, pre-consumer knitted cotton textile wastes were collected in a systematic way and sorted according to fabric tightness (loose/single-jersey and tight/interlock) and previous finishing treatments (untreated greige cotton fabrics and dyed cotton fabrics). The effect of the size of the waste fabric pieces fed to shredding was also investigated. Waste ratio of recycled fibres, recycled fibre length, spinnability of recycled cotton fibres and properties of produced yarns were tested. Results showed that lower waste ratio of recycled fibres and higher yarn breaking strength values was obtained by the recycling of cotton fibres from wastes composed of single-jersey greige cotton fabrics. In general recycled cotton fibres from dyed fabrics showed lower quality values. As a conclusion, it was indicated that better values for resultant material could be achieved by the selection of loosely knitted greige cotton fabrics.
2003
A detailed analysis of the properties of grey and dyed (reactive dyed and natural dyed) cotton fibres including the waste materials at different stages of rotor spinning process has been carried out. Significant changes in length-related parameters are observed in each mechanical processing, the effect being more prominent in case of dyed fibres where the frictional coefficient is high. The effects of opening roller speed and its type on the fibre characteristics have also been reported.
Cotton Textile Processing: Waste Generation and Effluent Treatment
This review discusses cotton textile processing and methods of treating effluent in the textile industry. Several countries, including India, have introduced strict ecological standards for textile industries. With more stringent controls expected in the future, it is essential that control measures be implemented to minimize effluent problems. Industrial textile processing comprises pretreatment, dyeing, printing, and finishing operations. These production processes not only consume large amounts of energy and water, but they also produce substantial waste products. This manuscript combines a discussion of waste production from textile processes, such as desizing, mercerizing, bleaching, dyeing, finishing, and printing, with a discussion of advanced methods of effluent treatment, such as electro-oxidation, bio-treatment, photochemical, and membrane processes.
TEXTILE TECHNOLOGY Cotton Textile Processing: Waste Generation and Effluent Treatment
Journal of Cotton Science
This review discusses cotton textile process- ing and methods of treating effluent in the textile industry. Several countries, including India, have introduced strict ecological standards for textile industries. With more stringent controls expected in the future, it is essential that control measures be implemented to minimize effluent problems. Industrial textile processing comprises pretreat- ment, dyeing, printing, and finishing operations. These production processes not only consume large amounts of energy and water, but they also produce substantial waste products. This manuscript combines a discussion of waste pro- duction from textile processes, such as desizing, mercerizing, bleaching, dyeing, finishing, and printing, with a discussion of advanced methods of effluent treatment, such as electro-oxidation, bio-treatment, photochemical, and membrane processes.
Effective Cleaning of Cotton Waste Produced at Cotton Cleaning Factories
American Association for Science and Technology, 2017
This article provides information on the effective cleaning of dusty air on dust collectors, depending on the processing of raw cotton of different classes, as well as industrial grade. Analytical and experimental studies have been carried out to improve the cleaning effect of a dust collector of the type of a ЦС by changing the slope of the incidence of the incoming pipeline. The value of the angle of inclination in the walking pipeline with the minimum concentration of dust emerging from the dust collector.