Elastic Yarn Expertise.

Suessen's PLYFil yarn manufacturing system uses air entanglement to manufacture two end yarn assemblies. The two ends are then twisted on a two-for-one twisting machine. The PLYFil spinning procress operates at 300 meters per minute, ofers a very high drafting ratio, and has a takeup rate of 800 grs. Conventional spinning processes, such ..

The Use of Neural Nets to Simulate the Spinning Process.

Researchers developed methods to calculate yarn properties based on fiber properties and spinning machine settings. A neural network simulates the spinning process to predict yarn properties for rotor and ring spinning machines at an accuracy of 95 percent. Researchers employed coupled self training systems in which the output of the firs..

OTEMAS '97 Survey 1: Yarn Formation

At OTEMAS 1997, Murata Machinery showed its 851 MVS Murata Vortex spinning machine that converts drawing frame sliver to yarn in the count range of Ne 10-50 in one operation at speeds of up to 350 meters per minute. Schlafhorst's Autoconer 338 operates at

Some Textile Applications of Finite-Element Analysis. Part 1: Finite Elements for Aligned Fibre Assemblies.

Researchers discovered a new approach in the application of finite elements to the solution of aligned fiber assembly problems. Defining the element stiffness matrix in a coordinated system based on the energy modes of the element deformation overcomes an

Count Variation Control - The Solution.

Controlling yarn count requires the use of satisfactory raw materials and manufacturing processes. The Blendomat feeding system opens, conditions, and feeds cotton in small lumps to the blowroom. Chute feeding to carding machinery and high speed drawing help improve yarn count, particularly when online monitoring and an autoleveler are us..

On-line quality monitoring for spinning mills

The use of on-line quality monitoring systems in the various stages of the staple yarn spinning process is reviewd. The working principles and advantages of commercially available systems are presented for use in foreign fibre detection and on-line waste control in the blow room and for quality and production monitoring in carding, combin..

Influence of spinning variables on the characteristics of polyester microfibre yarns (Spanish) (Influencia de las variables de hilatura en las caracteristicas de los hilados de pliester microfibra)

Polyester microfibre (0.9 dtex) has been spun in a ring spinning frame with variation of the spinning conditions (traveler speed, type of traveler, doffing and drawing) as indicated in Taguchi's methold. Responses evaluated report regularity parameters (USTER values, thin points, thick points, neps, hairiness) and tensile parameters (tena..

Long staple fiber spinning line

The spinning line presented includes a faller set drafting unit, wool combibning machine, speed frame and ring spinning machine together with automation units. The worsted yarn field in particular, with its fiber assortment and frequent small batches, places high demands on machine flexibility, though the use of harmonized machines from o..

A study of conductive fiber in yarn formation (Chinese)

This paper discussed the spinning of electric anti-static or conductive yarns using short-staple stainless steel fibres. The filaments of stainless steel were made from local industry and offered to be stretch-broken into stainless steel slivers by using a designed drawing machine. The electric specific resistance of stainless steel subst..

Zinser 321 -- Continuous Spinning Machine for Short Fibers.

Zinser manufactures a basic model of the 321 ring spinning machine, for processing short fibers, that can be retrofitted with auxiliary equipment and automation devices. This system of modular production is highly flexible, adjusting easily to individual production environments. The drafting line has a three cylinder, two cot design to ac..