Steady-State Unwinding of Yarn from Cylindrical Packages.

Over-end unwinding involves pulling yarn from a fixed package for such textile processes as knitting, sewing, twisting, weaving, and doubling. During over-end unwinding, the yarn slides on the package surface and lifts off into the balloon formed between the package and guide eyelet. Variations in yarn tension and balloon shape can negati..

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BEHAVIOR OF ROTOR SPUN YARNS AND FABRICS DURING CHEMICAL PROCESSING

The behavior of rotor spun fabrics during various chemical processing operations, such as desizing, scouring, bleaching, mercerization, dyeing, printing, and wash and wear finishing, is reviewed. The differences in the behavior of rotor spun and ring spun yarns during chemical processing operations are discussed. 17 refs.

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PRODUCTION AND PROPERTIES OF MIXED MICRON WOOL/COTTON TROPICAL FABRICS

Wool and cotton blend tropical fabrics containing 36-micron New Zealand Wool, 22-micron Merino wool, and cotton were developed. The production and properties of seven different samples of this blend are reported. No problems were encountered during the large-scale manufacture of these blends. These lightweight fabrics are between 25 and 4..

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INTERGRATION OF COMPUTER - AIDED DESIGN, COMPUTER-AIDD MANUFACTURING,AND COMPANY OPERATIONS AT A CLOTH MILL--A CASE HISTORY.

The intergrationof computerized systems with design, production control, and inventory control at the Metzingen cloth mill of Gaenslen and Volter is described. The company uses an IBM AS/400 central processing system in its design and production departments. Designers work on the personal computer workstations, which are linked to the IBM..

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DYEING AND FINISHING TREVIRA MICROFIBERS

Hoechst's Trevira Finesse polyester microfiber is used to manufacture such functional apparel as rainwear; Trevira Micronese is used in fashion apparel. Specifications for washing, drying, heat-setting, dyeing, and other finishing processes for these microfibers are detailed. These processes critically affect the type of dye that is selec..

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SHORT LIQUOR RATIO PIECE DYEING UNIT COLORSTAR

Scholl's Colorstar short liquor ratio piece dyeing unit is based on the Subtilo. Storage capacity is increased by 50 percent, which results in a very low liquor ratio, an excellent price/capacity ratio, and minimum space requirements. The Colorstar differs from other short liquor ratio piece dyeing units in that any liquor ratio can be ac..

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PREVENTION OF YELLOWING OF FINISHED FABRICS DURING STORAGE.

Yellowing of cellulosic and cotton fabrics occurs when the fabric is packed in either plastic film or cardboard or when stored fabrics are exposed to air. Further studies found that phenol substances used on fabrics form yellow derivatives in the presence of nitrous fumes and that many fabric storerooms have high concentrations of nitroge..

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IMPROVING THE ECOLOGICAL SITUATION BY COMPUTER-CONTROLLED AUTOMATION AS EMPLOYED ON MODERN ROPE PROCESING RANGES.

Bruckner's Delphin is a continuous rope processing range designed to reduce liquor consumption. The machine features a stored program control (SPC) to automatically control liquor flow rates, chemical dispensing, and liquor levels. The machine requires little human intervention. Process data, such as fabric number and fabric weight per un..

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TORAY HAS NEW NYLON FABRIC.

Toray Industries' Slater nylon fabric, which will be targeted at activewear and sportswear, is made of a combination of a new high-shrinkage nylon fiber and a microdenier nylon fiber. It will be sold in Japan initially. Slater is heat-treated, resulting in the intertwining of the two different nylons. The new fabric will go on the Japanes..

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AUTOMATIC LINKING MACHINE FOR KNITWEAR EQUIPPED WITH NEEDLE STOPPING DEVICE.

Exacta's new Formula linking machine, which has a needle stopping device, is available in two models. The Formula D model, which uses a hooked needle inside the point ring, links the garment on the right. Formula D is recommended for tubular trims. Formula R, however, uses a hooked needle outside of the point ring, and is recommended for ..

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