Short fibres - more and better (Italian) (Dipiu e meglio nelle fibre corte)

Recent improvements in short staple spinning technology are presented. Condensation spinning machines produce yarns which are more compact and stronger than ring spun yarns. They can be produced with fewer fibres or less twists and are less hairy, producing a cleaner product. It is predicted that condensation spinning will soon absorb mos..

Lenzing Technik : New SXS spinning technology

The SXS spinning system for spinning of viscose staple fibres comprises a complete modular spinning unit consisting of a few spinning stations with individual spinning troughs, including a take-off element for the fibre tow, a stretching system, and individual cutter for each modular unit. The main features are summarized, and the present..

New possibilities of viscose filament application

Following a historical outline, an analysis of the viscose filament market and a forecast of the future outlook, the technologies for producing viscose filament are compared. The distinction is made between the discontinuous and the continuous spinning techniques, and the properties of the yarns produced by the two methods are analyzed. T..

ITMA 99 survey 26: Air-conditioning, travelling cleaners

The Paris show featured several companies demostrating their expertise in the field of air conditioning linked to air cleaning and waste removal. Machines and systems developed by the following companies are briefly discussed: Luwa of Switzerland, LTG Air Engineering of Germany, Electro-Jet of Spain, JS Humidifiers and Technical Solutions..

Weak point analysis on rotor yarns (German)

As output is raised in the textile industry the stresses and strains placed on the fibers and yarns during production also increase. This can result in higher end break rates leading to reduced machine and production efficiencies. This adverse effect can, however, be avoided through a specific analysis of the weak points in the yarn. It i..

Monitoring of core mounting for a roving frame

A roving frame has a flyer region into which the suspension carriage trains are moved past a device for monitoring the presence or absence of cores or bobbins on the hangers. An error signal is transmitted in the case of an error and correction is effected when the suspension carriage train is in the flyer region. The suspension carriage ..

Method and apparatus for forming a sliver

A method for forming a sliver from a fibrous web leaving a carding machine comprises a pair of rollers for receiving the fibrous web issuing from teh doffer, a condenser arrangement comprising a pair of endless conveyor belts which receive and condense the web, and a sliver-forming means. IPC D01G.

A study on the twist of Sirospun (Chinese)

In this paper, the twist mechanism of Sirospun system was discussed. The result is that the existence and the fluctuation of the convergence point lead to the difference between Sirospun yarn and other yarns on structure and property.

ITMA '99 survey 14 : Short-staple ringspinning

'Condensed' or 'compacted' yarn is a significant breakthrough in ringspinning and was a major attraction in Paris at the stands of companies such as Spindelfabrik Sussen, Rieter, Zinser, M.A.L. and Barco. In addition to ringframes and fancy frames, the author discusses innovations in drafting systems, spindles, rings and travellers, belti..

ITMA '99 survey is: Long-staple spinning machinery

Outlines developments on show in Paris in the fields of worsted carding and combing, drawing frames, worsted ring spinning, opening and woollen cording, woollen spinning, flex processing and monitoring and control systems. Major exhibitors included Sant' Andrea, Octir, Cognetex, Zinser, Officine Gaudino, N. Schlumberger, Tatham, Galan, Be..