India Corners 22% Global Yarn Trade.

In 1999, India exported 534.83 million kilograms of cotton yarn to account for 22 percent of the world market and become the world's largest exporter of cotton yarn. Indian yarn manufacturers use the latest processing technologies. Such companies as Amit Spinning Industries Limited and Spentex Industries Limited have ISO 9002 certificatio..

Experimental Study of Capillary Flow in Yarns.

A technique based on the analysis of CCD images taken during the capillary rise of colored liquid in yarns studied the capillary flow in polyester and nylon yarns and glass fibers. Experiments determined that the transition from dry yarn to wet yarn was not abrupt and analyzed the causes of this gradual rising liquid front. The kinetics o..

TORAY UNVEILS NEW SHIN-GOSEN YARNS.

The shrinkage properties of the various polyesters used in Toray's Shin-Gosen fabrics impart a supple drape and a worsted-like hand. The new Shin-Gosen polyesters are Sildew, a two-filament composite; Miraclare, a multi-layered entangled composite; Moranna, also a multi-entangled composite, and Chatelaine, made of filaments with varying s..

EFFECT OF SPECIFIC CHARACTERISTICS ON STRUCTURE AND PROPERTIES OF AIR JET TEXTURED YARNS. PART 1. EFFECT OF FILAMENT FINENESS.

The effect of filament fineness on the structure and properties of air jet textured yarns was examined. Yarns with varying dtex per filament and equal cross-section, type of finish, and number of filaments were studied. Interfilament friction levels were comparable. An Eltex AT/HS air texturing machine was used with an LB-02 Hemajet and T..

MACHINE DESIGN FOR HIGH PERFORMANCE TEXTURING.

Rieter Scragg's Jetex 1200 solves many problems associated with air jet texturing. The following four areas have consistently been cited as problem areas n air jet texturing: the cost of air consumption and supply yarn; poor product quality; operational problems such as yarn breaks, operator fatigue, and process instability; and high prod..

FACTORS AFFECTING STRENGTH OF 60s/2/3 SEWING THREAD.

The strength of cable yarns can be improved by judicious choice of a singles and cabling twist multiplier (TM). Reduction of singles TM from 4.2 to 3.6 gives higher cabled yarn strength for 60s/2/3 as well as improvements in the gray as well as improvements in the gray cabled yarn increases with reduction of singles TM, it becomes insigni..

TEXTILES IN THE 1990s -- YARN PREPARATION SECTOR WILL CENTER ON LINKING.

Developments expected in yarn winding and yarn twisting technology and sales during the 1990s are outlined. Due to the demand for finer yarn counts, a higher percentage of winding units sold in the United States will be linked to ring spinning. Applications requiring precision winds, and an increased emphasis on yarn package quality will ..

KNITTING YARNS 1990.

A directory of 1990 knitting yarns from the United Kingdom's fiber companies are presented alphabetically by manufacturer. Some manufacturers and their products listed include AKZO, Bayer, Courtaulds, Du Pont, ICI Fibers, and Rhone Poulenc. Some manufactured yarns available include textured polyesters, viscose, Lycra, elastanes, Trevira, ..

INFLUENCE OF RAW MATERIALS AND PROCESSING FACTORS ON YARN FAULTS.

Cottons varying in trash content were studied under different processing conditions. The effect of carding rates, combing, and mechanical clearing were examined relative to yarn quality and evaluated with the Uster Classimat II. OMS and SKF drafting systems were used in the experiments on carding rates. Combing and mechanical clearing ten..

YARN TENSION AS A FUNCTION OF EXTENSION--A NEW APPROACH. APPLICATION TO AN IDEAL TWISTED MULTIFILAMENT YARN.

Formulas for yarn load, extension, and initial specific modulus of an ideal twisted multifilament yarn--relative to the properties of the component filaments--are derived using an approach that treats yarn tension as a function of extrusion. Predictions based on these formulas agreed better with experimental data on nylon and polyester tw..