An Automated Water Vapor Diffusion Test Method for Fabrics, Laminates, and Films.

United States Army researchers have developed an instrument for measuring the transport of water vapor through coated and uncoated fabrics, fabric laminates, thin foams, and solid films. The apparatus incorporates an automated dynamic moisture permeation cell (DMPC) to allow multiple setpoint testing under computer control and to facilita..

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Applying Expert System and Fuzzy Logic to an Intelligent Diagnosis System for Fabric Inspection.

Researchers evaluated the use of an intelligent diagnosis system, which is capable of tracing possible causes of loom breakdowns during the fabric inspection process. The intelligent diagnosis system used an expert system and the fuzzy set theory to trace the cause of a breakdown on a water jet loom during weaving. The system identified 1..

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Stomatex: A New Material for Clothing.

Micro Thermal System's Stomatex is a flexible laminated fabric that provides excellent thermal insulation and comfort during strenuous physical activities. Stomatex comprises a thermoformable elastic sheet covered with external and internal laminates. Flexing the material during wear stimulates the transport of perspiration through the fa..

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Resolution of the Stick-Slip Friction Traces of Fabrics.

Scientists investigating correlations between fabric construction and frictional properties examined the effects of scouring and mercerization on fabric friction. The trace analysis of the stick slip friction property of fabrics revealed that scouring and mercerization processes induce structural consolidation, which can increase the fric..

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Effect of Yarn Type and Twist Factor on Air Permeability, Absorbency, and Hand Properties of Open-End and Ring-Spun Yarn Fabrics.

Scientists investigated the effects of yarn type and twist levels of warp and weft on the hand and permeability to air and moisture of test fabrics woven from both open end yarns and ring spun yarns. Researchers produced 16 woven fabric samples made from different types of 65/35 polyester/cotton blends and tested the fabrics for absorbenc..

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Depicting the Drape.

Because of the growing demand for computer aided design and computer display of apparel items for wholesale and retail sale, the need to develop accurate computer simulations of the deformation of apparel fabrics is increasing. The unique combination of low stress mechanical properties (extension, shear, and bending properties) of apparel..

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Reduction of Within-Cycle Tension Variations in Warp-Knitting.

Researchers have developed a new spring loaded tensioning system to reduce the large tension variations that occur within a knitting cycle of compound needle and bearded needle warp knitting machines. Because conventional spring tensioning systems do not impart uniform tension to the yarns throughout the knitting cycle, they can increase ..

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Situation and Prospects of Automatic Flat Knitting Machines.

A review of flat knitting technology highlights the most important technical developments and trends. An important technical trend in flat bed knitting machine construction is the development of compact machines that possess all of the design advantages and automated amenities of larger, high performance models. These compact designs feat..

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HKS 2-3 High-Production Tricot Machine - Quiet and Rapid Running up to 3100/min.

Karl Mayer's HKS 2-3 high production tricot knitting machine produces elastic fabrics for use in the manufacture of swimwear, foundation garments, and fine underwear. Continuous production rates of up to 3,100 stitches per minute are possible. Despite the high speeds, the noise level, failure rate, and energy consumption are low. The mach..

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Novel Test Method for Predicting Weft Insertion Behaviour in Air-Jet Weaving.

Researchers at Aachen University simulated the weft insertion process on air jet looms. A computer controlled air jet loom permitted measurements of yarn tension, air flow status, operating pressures, and yarn velocities during insertion of viscose, cotton/polyester, polyester, woolen, and filament yarns. A regression analysis of data der..

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