MPF K--Memminger's Positive Yarn Feeder.

Memminger's positive yarn feeders include the MPF K, which features a vibration-free yarn tensioning unit with magnetic braking rings that also functions as an automatic cleaning device. It minimizes faulty stops; eliminates braking disc cut sawing; offers uniform slipless, drag-free yarn transport; and reduces maintenance costs. Memminge..

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TESTS ON THE 'ROUGHNESS' OF TEXTILE SURFACES

The subjectively perceived roughness of textiles was found to be related to construction parameters. Single nylon filaments of 75 and 150 micrometers and a plain weave fabric were subjectively evaluated for roughness by 14 men and 16 women. Perceived roughness was found to be correlated to the spacing of observed irregularities on the yar..

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MODULAR ELECTRONIC JACQUARD FOR WEAVING AND RASCHEL MACHINES.

TIS have developed an electronic module for controlling the individual harness cords of the jacquard on raschel machines. The compact design and modular construction of the device allows warp density to be varied between 10 and 46, or between 50 and 100 threads per centimeter without modifying the harness. The control system consists of a..

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COMPUTER CONTROLLED WARP KNITTING MACHINE WITH HORIZONTAL WEFT INSERTION AND PILE UNIT.

Liba's computer-controlled Copcentra warp knitting machine produces pile fabrics for the furniture and car upholstery sectors. In addition to an improved weft insertion system, the machine is equipped with compound needles, three yarn guide bars, and a pile sinker bar for producing pile loops. The electronic control system is composed of ..

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MULTI-FUNCTION TEST INSTRUMENT FOR PROCESSING BARE ELASTANE YARNS.

Memminger, in conjunction with Du Pont, has developed the LMT multi-function test instrument for measuring fine count elastane yarns on circular knitting machines. The instrument can determine yarn consumption in millimeters per cylinder revolution for fine yarns between 22 and 44 dtex. The percentage of elastane yarn extension, the weigh..

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IMPROVEMENT OF PLATING QUALITY DURING CIRCULAR KNITTING.

Factors that influence plating quality during circular knitting include yarn properties and the type of yarn feeding device. The influence of yarn tension, passive feeding mechanisms, and positive feeding mechanisms on fabric quality are considered.

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KNITTED FABRIC SHRINKAGE.

Rimar offers a line of equipment for shrinking knitted fabric. The key elements of a Rimar plant are a steam heated steel drum, a continuous felt belt, a counter-cylinder for guiding the belt and feeding fabric, and a fabric introduction element. The most novel aspect of the system is a double compacting treatment, where the fabric makes ..

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SUPERIOR WARP.

Microprocessor controlled warping equipment allows permanent control of all functions, and automatic control and constant reproducibility of production data, achieving a higher quality level than ever before. Benninger's G2B, G2B-F, UB, and UR tensioners are sturdy, provide uniform tension from thread to thread, and have a centralized dri..

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COMPUTER AIDED TEXTILE DESIGNING.

The Wool Research Association (WRA) of India has adopted a CAD system to simplify woven textile designing. The computer's memory is capable of storing infinite color combinations and producing a variety of woven patterns for the designer to examine. The VDU and printer allow the designer to print hard copies of the designs, which may be a..

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MECHANICS OF WOVEN FABRICS. PART 2. EXPERIMENTAL STUDY OF WEAVABILITY LIMIT OF YARNS WITH THICKNESS VARIATION.

The theoretical weavability limit relationships developed in Part One were tested using a range of tightly woven fabrics made from regular thickness warp ends and filling yarns with pulse train irregularities. Periodic and random thickness variation filling yarns were used. Results showed that the agreement between the theoretical and loo..

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