Air flow through a weft passage of profile reed in air jet looms (Japanese)

An air jet loom equipped with a profile reed and sub-nozzles is able to weave wider fabrics at higher speed than other types. A study on the characteristics of air flow and behavior of the weft yarn in the weft passage area of the profile reed during inserting the weft yarn is very important. The velocity distributions of air flow issued ..

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New Developments in the Area of Heat and Fire Protective Textiles Using Intelligent Solutions.

Intelligent fabrics have applications in protective clothing for sports and military uniforms. Intelligent fabrics feature integrated sensors and actuators, such as breathing and heartbeat pulse sensors, thermal sensors, global positioning system receivers, microcontrollers, and electromagnetic interference sensors. Developments in intell..

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Smart Textiles (1): Passive Smart.

Intelligent fabrics have sensors that respond to environmental stimuli from mechanical, thermal, chemical, electrical, or magnetic sources. Passive intelligent fabrics sense stimuli, whereas active intelligent fabrics sense and react to stimuli. An overview of passive intelligent fabrics addresses optical and conductive fibers. Bragg opti..

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ATME-I 2001: Weaving and Preparation Equipment

Over 517 exhibitors from 25 countries attended ATME-I 2001, held in Greenville, South Carolina in April 2001. Countries with the largest number of representatives included Canada, Mexico, Solombia, Brazil, and Ecuador. Rather than radical innovations in machinery design, the exhibition demonstrated a conflict in the perceptions concerning..

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Modern Installations and Procedures for the Finishing of Narrow Band Textiles.

The increased demand for a broader color palette for narrow fabrics requires more manufacturing flexibility. Narrow fabric dyeing and finishing plants use several different systems, including single-end, dual-end, and multi-end installations. Multi-end systems convey several parallel guided narrow fabrics through the dyeing machine and ar..

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Fiber-Yarn-Fabric Relationships in Cotton/Dyneema Fabrics.

An experiment evaluated the influence of Dyneema content on the air permeability, water vapor transmission, and thermal energy dissipation of cotton/dyneema fabrics. An increase in Dyneema content increased yarn and fabric strength. Core wrap yarns exhibited lower strength, elongation, ad air permeability in the wet state than did random ..

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Latest Developments in Needles.

Groz-Beckert KG's G 00 needles prevent longitudinal striping and double loops during knitting operations in which the hook of the knitting machine is exposed to excessive stress. The company's Hofa-Spec needles minimize variations in loop structure during the knitting of delicate hosiery yarns. An elastic double slot, dynamically centered..

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The Effect of the Condition of Weft Yarn Processing on the Weaving Bars.

Researchers investigated the effects of pick spacing, twist, denier, degumming loss percentage, and dye absorption percentage of filling yarns on fabric barre formation. Whereas denier had no effect and degumming loss percentage had some effect and degumming loss percentage had some effect, excess twist had the greatest effect on fabric b..

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Effects of Abrasion on Liquid Barrier Properties of Selected Nonwoven Fabrics.

A study of the effects of abrasion treatment on the barrier properties of protective nonwoven fabrics established changes in surface wetting, liquid retention, and liquid penetration resulting from moderate and severe abrasion, flat and flat/flex abrasion, and dry and wet abrasion of Tyvek fabric, hydroentangled cotton with a fluorochemic..

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Single Needle Loop Cohesive (Homogeneous) Warp Knit Construction.

A prototype knitting machine manufactures an economic and cohesive fabric construction by laying the yarns across the face or hook side of the needles to achieve single needle loops in each wale and course. A sinker neb ensures that the last or uppermost part of the lay enters under the hook to form a single stitch on each needle. The adj..

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