Heat Setting of Circular Knitgoods.

Lindauer Dornier GmbH's EcoFix heat setting machine features an adjustable circular expander that confers such elastomeric properties as shrinkage behavior, stretchability, recovery capacity, and residual elasticity during processing. Hot air setting in circular form reduces the selvage marks left by the knitting machine. Tubular fabrics ..

Multi-Basket Approach to Relaxed Drying.

Biancalani's Spyra continuous drying and softening machine combines air fabric transport and tumble drying. A Teflon coated motorized winch transports the fabric rope into the first ejector tube, and a restraint grid guides the fabric into the first perforated drum. A control panel sets fabric induction speed, the number and speed of drum..

The Influence of Treatment Conditions on the Quantity and Composition of Oligomers Extracted from Polyester Fabric.

An experiment into the effects of treatment conditions of polyester fabric on the extracted oligomers used gel permeation chromatography to determine the composition of oligomers extracted with dichloromethane solvent. Alkaline pretreatment prior to acid or alkaline dyeing reduced the quantity of extracted oligomers and flexural rigidity...

An Introduction to Textiles, Dyes and Dyeing.

An introduction to textile dyeing provides definitions and examples of dye molecular structure and addresses such topics as the historical background of fibers and dyeing, development of manmade dyes and fibers, fiber classification, fiber and fabric manufacturing processes, color perception, colorants, dyes, pigments, and dye classificat..

It's a Stretch.

Elastane yarns account for 1-30 percent of raw materials in elastane apparel fabrics. Elastane yarn production is expected to increase by at least 10 percent annually through 2007. DyStar estimates that 35-40 percent of all apparel in developed markets contains some elastane fiber. Elastomeric fibers are sensitive to high temperatures, fa..

An Introduction to Dyes and Dyeing.

An overview of dyes and dyeing principles addresses dye molecular structure; commercial dye composition; dye selection; dyeing methods: dyebath preparation; fabric preparation; and direct, exhaust, and continuous dyeing methods. Factors involved in selecting a dye for a fabric include fiber type, fabric structure, required degree of level..

Tailing in Cold Pad-Batch Dyeing and the Econtrol Process.

DyStar and Monforts's Econtrol cold pad batch dyeing machine features a padding unit and a novel Thermex dryer that fixes DyStar reactive dyes in 2-3 minutes. Maintaining a constant temperature of 120 degrees centigrade and relative humidity of 25 percent in the Thermex chamber minimizes fluctuations in batching time and temperature. A le..

Dyeing Machinery.

Dyeing machines hold the dye solution and products being dyed; have systems to heat the dyebath, drain the exhausted dyebath, and add washing water; and provide uniform circulation of the dyebath through the products or movement of the products through the dyebath. An overview of dyeing machines focuses on batch dyeing machines: machines ..

Flexibility and Economy.

Mezzera's TMB 2000 hank dyeing machine for cashmere, silk, mercerized cotton, and other delicate yarns suspends hanks on perforated tubes and draws the dye liquor from a dyebath located below the hanks. An inverter driven pump ensures constant liquor flow for complete saturation. Officine Minnetti Italia srl's hank dyeing machine features..

Fibre Blends with Elastane: Recommendations for Pretreatment and Dyeing.

Long tern storage of woven or knit elastane fabrics results in yellowing due to silicon oil and other lubricants used during processing. Cold setting of such fabrics causes permanent crease marks. Circular knit fabrics with high elastane content should be cut directly on the knitting machine and rolled in open width form. Heat setting at ..