Ideal Spinning Process: Utopia or Reality?

The ideal spinning process is a total quality management system that starts with raw material selection and continues through all stages to achieve optimal yarn quality. Researchers evaluated a system consisting of a Rieter standard blowroom and carding mill and the latest generation of RSB-D30 drawing machines and R 1 rotor spinning mach..

Changes in Cotton Fibre Linear Density and Maturity during the Spinning Process.

The Advanced Fiber Information System (AFIS) enables researchers to measure different cotton fiber parameters at successive stages of processing. Researchers used AFIS to determine fiber maturity ratio (MR), immature fiber content (IFC), fiber fineness, and their distributions at bale laydown and at different processing stages, beginning ..

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AIR JET TEXTURING OF SIROSPUN YARN.

Air jet texturing was used on Sirospun yarns to improve the bulk of the parent yarn. The effects of twist in the parent yarn and the effects of overfeed and pressure during texturing on the properties of the textured yarn were examined. Under optimized texturing conditions, excellent texturing and yarn properties were achieved with Sirosp..

FALSE TWIST TEXTURING MACHINES

A false twist texturing machine chart lists 24 models offered by seven machine manufacturers. Manufacturers listed include Barmag, Davide Giudici, and ICBT Roanne. The chart includes the names of the manufacturers' representatives in the United States, their product trade names, and product features, such as monitors, cooling devices, ran..

AIR JET TEXTURING MACHINES

A chart of air jet texturing machines lists nine models offered by seven manufacturing companies. The companies listed include Barmag, Eltex, Davide Giudici and Figli, and Murata. Also listed are the manufacturers' United States representatives, the model trade names, and such features as gage size and yarn size range, production rate, no..

RING SPINNING -- CHALLENGES AND PROSPECTS.

The limitations of ring, rotor, friction, and air jet spinning are discussed. In ring spinning, the relationship between yarn count and spindle speed suggests that speeds and productivity will only increase for finer count yarns. Conversely, rotor and friction spinning show greater productivity with shorter count yarns. Speeds have improv..

FIBER MIGRATION IN SPINNING

Fiber migration during spinning significantly affects yarn properties. Based on dynamics, a model of fiber migration was developed. The importance of such factors as fiber length, fineness, and twist was noted. Both tracer fiber experiments and computer simulations confirmed the validity of the model, as well as the extent to which the mo..

ONLINE QUALITY SUPERVISION IN A CIM SPINNING MILL OF THE LATEST GENERATION

The Kondo-Bo company of Japan has opened one of the world's most modern CIM ring spinning mills for combed cotton yarn. The mill's central computer automatically supervises, controls, and optimizes nearly every spinning process. The heart of the system is an Uster Sliverdata installation, which controls sliver weight deviation, evenness, ..

NEW SLIVER-TO-YARN SPINNING MACHINE

The RingCan is a sliver-to-yarn spinning machine with a three-roll drafting system capable of optimal back and front roll speeds. The total draft is limited to about 200. A top arm that can guide the top rolls precisely is requisite. To achieve drafts higher than 200, sliver can be drafted higher on the drawframe. A sliver transport syste..