Effect of post spinning operations on the hairiness or ring-spun cotton yarn

Ring-spun yarns from H-4 cotton of 30s ne and 3.46 twist multiplier were prepared and the hairiness of these yarns taken from the spinning bobbin and other packages from post-spinning operations (warp winding, pirn winding) and from woven fabric was studied by projection microscopy. It is observed that different post-spinning operations i..

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Relaxation and inverse relaxation of yarns after dynamic loading

During weaving, warp yarns are subjected to dynamic loading before stress relaxation during a loom stop. A test method is presented for simulating this behaviour. There are three types of relaxation curves - simple relaxation, inverse relaxation and mixed relaxation - depending on the previous load history of the yarn. The residual force ..

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New rapid method to determine water vapour permeability of textiles and similar materials

A new testing method determines water vapour permeability indirectly by measuring the reduction of the surface resistance of a thin absorber which lies on the sample. The measurement and evaluation methods are described, as well as the physics and the advantages and disadvantages of the new rapid method. The new method is compared to exis..

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A new cashmere-like woven

In the creation of Cashmeena, Kanebo have successfully achieved a high-grade 'cashmere-touch' woven fabric without the napping and brushing treatment. Cashmeena is a further development of Shin-Gosen polyester fabrics and is made from a textured composite filament yarn with differential shrinking characteristics. This is a core yarn which..

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Decatising Machine for Woven and Knitted Fabrics.

Bisio's Bapofinish decating machine is appropriate for the treatment of woven and knit fabrics. The field of application includes woolen, worsted, silk, linen, viscose, acrylic, elastomeric, and lining fabrics. The drive system permits operating speeds of up to 120 meters per minute. Machine capacity with a 0.8 millimeter thick satin wrap..

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ITMA '95 Survey 24: Computers in Knitting.

ITMA 1995 offered few new developments in computer aided design (CAD), computer aided manufacturing (CAM), or computer integrated manufacturing (CIM) for the knitting industry. Manufacturers offering new CIM software included Cipic, CAL, Datatex, and Update GmbH. CAM innovations comprised interlinked monitoring devices, recorders, analyze..

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Expert System for Rapier Looms.

Researchers developed an expert system to provide the basis of a management procedure to monitor weaving incidents, determine the reason for the incidents, and examine their influences on fabric quality. Ultimately, every weaving incident will be detected, analyzed, stored in a computer database, and used to improve fabric quality and pro..

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ITMA Survey 22: Drawing-in, Tying. Quick Style Change and Other Weaving Preparation Systems.

At ITMA 1995, manufacturers exhibited equipment for weaving preparation, including automatic drawing-in, tying, dropper pinning, leasing, reaching-in, and quick style change systems. Automatic drawing-in machines help manufacturers enhance production efficiency with multistyle production, smaller lots, and shorter delivery times. Manufact..

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QSC, A Major Crowd-Puller.

The Quick Change System (QSC), displayed by a number of vendors at ITMA 1995, allows ready alteration of the reed, heddle shafts, drop wires, creels with selvage yarns, and warp beam with an electronically controlled trolley under the command of a single

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MC-830 Automatic Flat Knitting Machine.

Universal's MC-830 series of flat bed knitting machines incorporates a new degree of modularity for increasing production speed and patterning capabilities. The three system MC-830 machine manufactures fabrics at a nominal width of 94 inches and in E5-E12 finenesses, and can be fitted with a module to perform four way stitch formation and..

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