Fly and fluff generation in a spinning mill and its control

It is essential to control fly liberation and fluff accumulation in spinning mills, not just the sake of workers' health but also to maintain yarn quality. Some useful measures to control fly and fluff generation are discussed. As well as remedies for inadequate moisture in cotton which causes fly liberation, several measures to control f..

Influence of design features on maintenance of modern spinning machinery - part II

The influence of modern design features on the maintenance of ring frames, speedframes and drawframes is assessed. The latest modifications to ring spinning frames from Zinser, Rieter, Toyota and Suessen are described in some detail. Many of these design features work as well on speedframes and drawframes. Improvements specifically for sp..

Variations in the Characteristics of Acrylic-Cotton Ring and OE Rotor Yarns as a Consequence of Steam-Relaxation Treatment.

Researchers investigated the effects of steam-relaxation treatment on the properties of acrylic/cotton yarns. An experiment subjected both ring spun and open end spun yarns to steam relaxation in skein form and subjected the skeins to American Society for Testing and Materials (ASTM) test procedures for tensile properties, yarn diameter, ..

Characterization of Neps in Spinning Processes.

A study used the Advanced Fiber Information System to study nep level and nep size distribution at different stages of cotton spinning. Fewer neps per gram in carded sliver did not always correlate with fewer neps in the yarn. Carded sliver nep size was another critical factor in yarn nep levels, especially at finer yarn counts. Critical ..

Improving Cotton Spinning Quality Using Fuzzy Sets.

The Textile Engineering Department at the University of Minho in Portugal conducted experiments in the use of neural and fuzzy systems in cotton spinning. These experiments aimed to improve cotton spinning quality by the application of neuro-fuzzy systems, which were trained by a learning algorithm derived from neural network theory and c..

HOW TO MAKE COTTON YARNS WITH LOW COUNT VARIATION

SITRA evaluated the yarn count variation in Indian spinning mills to determine spinning practices that resulted in low count variation and to determine the minimum count CV that could be achieved through process improvements. In order to estimate the present count variation in India, a study was conducted at 14 mills. Detailed investigati..

BTRA SOFTWARE PACKAGE II--SPINNING PREPARATION

BTRA has developed a software package for generating production and efficiency reports concerning blowroom, carding, drawing, combing, and speedframe activities. The package, based on the dBase 3 Plus software language, is menu-driven and easy to use. It can also be used to calculate piece-rated wages, efficiency-based wages, and wage inc..

Fundamental Problems with On-line Data Streams

A Practical Guide to Controlling Static Electricity in Coaters to Enhance Safety

Because webs during transport in the coating process generate dangers electrostatic charges, the reduction of static electricity is necessary. Methods to reduce static elecgricity include grounding machinery and machinery operators. In addition, raising the relative humidity, adding antistant chemicals, and operating air ionizers are comm..

New Air-Covering Machine Reaches 1200 M/Min

ICBT's JD 1200 air covering machine manufactures elastomeric yarns plied with polyethylene terephthalate and nylon yarn at more than 1,000 meters per minute. A new version will reach 1,200 meters per minute. The yarn path is completely straight shroughout the transformation process, which guarantees higher yarn quality. The JD 1200 is equ..