evaluation of the new spinning techniques on automation and quality criteria

of all unconventional spinning techniques, open-end rotor spinning has now become the most widely accepted. strenuous efforts are being made to extend the field of application to the fine yarn sector. the open-end friction spinning system has gained acceptance in the coarse yarn sector. the fibre-wrapped spinning system (air false-twist s..

raw materials selection in cotton spinning - a constant compromise between quality and cost?

cotton spinning technology has experienced very rapid fundamental development in recent years with the result that cotton specifications differ from what was previously needed. spinnability is a general concept which summarily describes all characteristics of a type of cotton with regard to the possibilities of transferring these properti..

maintaining cotton quality

nine bales of midsouth cotton were subjected to three harvesting treatments, three levels of lint cleaning, three levels of mill opening line cleaning, and two levels of mill carding. fiber properties after ginning were best for the normal-harvested cotton without lint cleaning, but producer returns were best for normal-harvested cotton c..

first ricofil plant inaugurated in geneva

the latest phase in the remarkable success story of a young geneva-based sales yarn spinner was celebrated recently when filinter sa officially inaugurated a new combed rotor-spun yarns production plant. equipped with 2,592 rotors operating round-the-clock to produce 350 tons/month of 100 combed rotor yarns in a fine counts range of ne 20..

effect of dynamic changes in doffer speed on cylinder loading

during the operation of a cotton card with varying doffer speed, it was noted that both the cylinder loading and doffer loading varied with the doffer speed. from a theoretical analysis of the loading on the doffer and cylinder during sinusoidal speed changes to the doffer, it is shown that it is possible to determine the effect of sinuso..

effect of yarn spinning system on pill resistance of polyester/cotton knit fabrics

we have determined the effect of ring, rotor, and air-jet spinning on the pill resistance of jersey and interlock fabrics. the jersey fabrics contained the same polyester type, while the interlock fabrics contained the preferred polyester for each spinning system in each of the constructions, the air-jet spun fabrics were significantly mo..

practical experience with waste cleaning machines in cotton spinning

it is shown that the cleaning stations should be adjusted so that whiter waste than formerly is produced. the sequence of waste removal from the various waste stations should be designed and arranged so that a mixture of all wastes is presented to the 'cleanstar'. an operational fire protection system should be incorporated. a reserve cyl..

cotton spinning processes

this paper discusses trends and development in ring spinning and in spinning preparation including direct silver spinning, speed/roving frames, drawing frames, combing, carding, opening and scutching

failure analysis of a main rotor pitch horn bolt located on the ah-1 cobra helicopter. final rept

a comprehensive metallurgical examination of the pitch horn bolt was conducted to determine the probable cause of failure. the component is part of the main rotor hub assembly and had failed while in service. light optical microscopy revealed evidence of corrosion pitting in regions adjacent to the fracture. chemical analysis verified tha..

proceedings of the atira technological conference (8) held april 9-10, 1971: spinning, weaving, chemical processing, and engineering of textiles

the main theme of this conference was process control in the textile industry. several papers were presented concerning process control in cotton spinning; weaving; bleaching, finishing; dyeing and printing a paper on economy in air conditioning in textile industry is also covered