Air-conditioning control systems for a high performance spinning mill

In high performance spinning mills, where spindle speeds are 18 000 rpm and higher, the fluctuations caused by doffing and machine shutdowns influence the adjacent machines to such an extent that each ring spinning machine should have its own air conditioning and control system. This article describes such a system, how it works and how i..

SSM: High-Performance Air-Covering Machine.

Scharer Schweiter Mettler AG's DP1-C Digicone Preciflex air covering machine combines two or more yarns to create yarns with totally new properties. The Digicone reduces process costs by up to 60 percent with its higher production speeds and reduced power consumption. The integrated rotating ceramic yarn guides in the yarn path provide st..

Processing of Polyester/Cotton blends Using a New Blending Method : Some Observations.

SITRA studied and compared the blow room, draw frame, and sliver lap methods for blending polyester and cotton fibers. The tests blended both conventional polyester and lower quality polyester fibers in a 67/33 percent blend with cotton fibers and tested the resultant yarns for tenacity, elongation, evenness, imperfections, and Classimat ..

Revolutionary New Jet- and Ring-Spinning Equipment on Tap.

Technological developments in yarn manufacturing will lead to increased speeds and improved fiber processing. Machinery manufacturers are working on developments that will allow for the processing of fine, superfine, and microdenier fibers. Notable developments include Murata's Vortex spinning machine for spinning 100 percent cotton at sp..

Wrap Frequency -- A New Parameter for Assessing Lapping Tendency of Fibres/Spinning System.

Researchers developed a new method to express the roll lapping tendency using the time for lapping to occur after an end break. This method expresses lapping tendency as wrap frequency or the number of wraps per spindle per minute. The method cuts 20 spindles below the bottom role, starts a timer as the tenth spindle is cut, counts the nu..

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