Processing of Cotton and Synthetic Blends.

Cotton/manmade fiber blends can be created at all stages of short staple spinning. The various methods include blend mixing, tuft blending, lap mixing, mixing at combing, and mixing of slivers. In bale mixing, intensive blending occurs in the UNImix after different bales are fed at the opener. The UNIblend A80 blends the fibers in tuft bl..

Significant New Developments in Spinning Technology.

New developments in cotton and wool processing include fiber testing methods, spinning mill equipment, and worsted spinning equipment. Such instruments as the AFIS, ITV dust and trash analyzer, and Quickspin make possible the determination of fiber properties relevant to final yarn quality. Spinning mill developments include the bale open..

Processing Behavior and Applications of Lyocell.

Lenzing developed lyocell fibers with longer crystallites, less clustering of crystalline areas, and shorter and better oriented amorphous sections than conventional cellulosic fibers. Lyocell offers good dimensional stability, high absorption, and good dyeability. Manufacturers can spin lyocell via ring, rotor, and air jet spinning machi..

Use of digital image processing for optimizing the opening and cleaning process (German)

As a result of more aggressive harvesting methods the quality of cotton is deteriorating since leaf particles and wood splinters are finding their way into the fibres. Details are given a process for evaluating cotton quality involving digital image processing which can be used to determine the effect of different processing and machine p..

On-line quality control engineering for synthetic yarn - spinning mills and texturing companies

The benefits of on-line quality control for synthetic fibre and yarn production is reviewed. The technology, which can be used for friction texturing, air-jet texturing, spin-draw texturing and spincable texturing, provides early recognition of changes, marking of misproduction and current information to enable optimisation of the process..

Acoustic methods to monitor sliver linear density and yarn strength

An apparatus for monitoring a sliver or yarn to identify predetermined characteristics comprises means for generating transverse waves into the sliver or yarn, sensor means for detecting transverse wave propagation in the sliver or yarn and for generatig a responsive signal, and singnal processing means for processing the responsive signa..

Criterial equations for scutching a layer of raw flax with allowance for the drum interaxial distance (Russian)

Criterial equations are derived for the scutching of flax with allowance for the interaxial distance between the drums. The tension in the raw fibre layer during simultaneous processing using one, two or three beaters is also determined.

Matka spinning

Matka spinning, a traditional method used by women from poor families in the Murshidabad and Malda districts of West Bengal, is described. Matka is hand-spun mulberry silk yarn drawn out of cut and pierced mulberry cocoons. The employment potential of the technique and associated spinning and weaving activities is discussed. The scope for..

SPIDERweb Monitoring System

Beginning in October 1996, Rieter will offer SPIDERweb, a fully integrated monitoring system, for all of its spinning systems. SPIDERweb collects, prepares, and displays all quality and production data from Rieter spinning machines. SPIDERweb features a Microsfot Windows user interface, ease of operation, and a range of parameters develop..

Better Utilisation of an Old Semi-Worsted Technology for Spinning Fine Jute Yarns

Because conventional flyer spinning systems for jute fibers involve limitations when spinning textile grade yarns of 140 tex or fewer, researchers modified a low cost semiworsted technology package to expand the market for jute yarns in home furnishing an