Process Control in the Cotton Spinning Mill.

High volume instruments (HVI) measure cotton fiber length, uniformity, strength, elongation; micronaire, color, and trash content. However, the test results may vary due to fluctuations in humidity. Tests carried out by Cotton Incorporated involving six t

A Contribution to the Technology of the Use of Oils for Processing Fibers. Part 21

A comprehensive review of oils used in processing both natural and manmade fibers and their blends includes an introduction that discusses oleic and synthetic oils and sections on raw materials, the study and formulation of the oils, analysis and tests, applications in textile processes, and equipment used to apply the oils. The review al..

Reflecting the Radical Progress of IT.

SPIDERweb, the fully integrated Microsoft Windows based monitoring system from Rieter, is available for its current line of spinning machines. The rapid advance of PC power during the last 13 years allows this system to monitor and display data on quality, production, time, shift schedules, and more. SPIDERweb can help mills become more e..

Wrap Frequency -- for Assessing Lapping Tendency of Fibers/Spinning System.

For every lap per 100 spindle hours, textile mills lose approximately Rs 20-Rs 70 per year. A new measuring system expresses roller lapping as a function of the time it takes for lapping to occur after end breaks. The new recent study examined the wrap fr

WORLDWIDE SPINNING TRENDS

In a report that was originally presented to the American Yarn Spinners Association in September 1992, Marzoli examines the installed spinning capacities (ring and open end) and average yearly shipments of equipment to Asia, North America, Europe, South America, and Africa during the period 1982-1991. The average labor cost per hour relat..

INTERRELATIONSHIP BETWEEN FIBER QUALITY AND YARN STRENGTH.

The relationship between fiber properties and yarn strength for polyester and viscose yarns was investigated. Six viscose and five polyester yarns were used for the study. The effects of different twist multipliers on yarn stength were considered. The experimental data were subjected to statistical analysis. A linear relationship was esta..

MECHANICAL PROPERTIES OF FABRIC WOVEN FROM YARNS PRODUCED BY DIFFERENT SPINNING TECHNIQUES.

The mechanisms of in situ tensile failure of staple yarns during uniaxial tensioning were examined. The yarns were polyethylene terephthalate and cotton blends spun on ring, rotor, and air jet machines and woven into plain or twill weave fabrics. Load ext

INFLUENCE OF MACHINE VARIABLES ON TWO-STRAND YARN SPINNING GEOMETRY

Critical parameters in two-strand yarn spinning are strand convergence angle and strand twist above the convergence point. To evaluate the effects of these parameters during spinning, bi-colored multi-filament yarns were fed directly from the front rollers of a ring frame under a range of conditions. Photography was used to demonstrate tw..

CRITICAL STUDY OF JUTE SPINNING USING A SMALL QUANTITY OF FIBER.

Small quantities of jute fiber were used to produce slivers and yarns, and variations in sliver and yarn properties during production were determined. The trials indicated that a small staple spinning technique can be used to produce slivers and yarns of better regularity than those produced on bulk spinning equipment or from small-scale ..

TEXTILE AIR TECHNOLOY FOR TRANSPORTING FIBERS AND DUST.

Systems for waste removal from cards and the removal of dust from the mill environment are discussed. Waste removal from cards can be accomplished by placing a transport ventilator inside the card to collect waste. Improved fibrous waste and dust removal can be accomplished by using a centralized system to extract waste and dust from the ..