Smart Rinsing: A Step Change in Reactive Dye Application Technology.

Rinsing during reactive dyeing of cellulosic substrates accounts for 80 percent of water consumption, 90 percent of energy consumption, and 70 percent of the time of the total process. Textile machine manufacturers at ITMA 1995 introduced a variety of machines with smart rinsing systems that meter fresh hot water into the dyeing machine t..

Constant Add-On via Wet-on-Wet Padding.

Researchers investigated the effects of continuous add-on via wet on wet padding on the performance of finished fabrics. An industrial pad batch dyeing machine dyed a 50/50 polyester/rayon woven fabric with a double vinyl sulfone reactive dye in an alkaline dyebath containing a wetting agent and defoaming agent. Dimethyloldi-hydroxyethyle..

Avoiding the Barre Effect.

Fiber irregularities occurring during the manufacture of continuous nylon filaments can produce barre effects. Thor Specialties' Kyolox TSP is a blend of alcohol ethoxylate surfactants and an antioxidant for heat setting nylon fabrics to minimize the yellowing resulting from oxidation of the processing oils and damage to the amine groups ..

Kinetic and Thermodynamic Studies on Low Temperature Ultrasonic Dyeing of Wool with 1:2 Iron Complexed Acid Dyes.

A study dyed wool fibers with C.I. Mordant Blue 13, C.I. Mordant Green 17, and C.I. Mordant Orange 37 1:2 iron complexed acid dyes via conventional and ultrasonic dyeing methods. Ultrasonic methods improved dye exhaustion in the absence of salt, shortened dyeing time, and lowered dyeing temperature. Kinetic analysis discovered an exotherm..

Conservation of Chemicals, Water, and Energy through Dyebath Reuse in Polyester Fiber Dyeing.

Researchers investigated the feasibility of reusing dyebaths in polyester fiber dyeing. Ultraviolet-visible light spectroscopy and high performance thin layer chromatography evaluated yarns dyed with recycled dyebaths for neps, breakage, and Uster percentage. Laboratory tests determined the quantity of dyes and dyeing assistants needed to..

Optimizing Cotton Dyeing Efficiency.

A study determined the optimal conditions for dyeing cotton yarn using Barberry and Black Kikar bark dyes. Scouring removed impurities and finishes from the yarn prior to dyeing. Optical density measurements revealed that the suitable wavelengths for Barberry and Black Kikar barks were 410 nanometers and 430 nanometers, respectively. Maxi..

Dyeing with Enzymatically Treated Bleaching Effluents.

Researchers investigated the effects of dyeing cotton with enzyme treated bleaching effluents. An experiment dyed bleached woven cotton fabrics with C.I. Reactive Blue 198 at a 20:1 liquor ratio with three repetitions. Enzyme treatment with catalase removed hydrogen peroxide from the bleach bath. CIELab color space at standard illuminant ..

Cotton -- The King of Fibres -- Part XVII.

Important components in discharge printing are the vat color paste, reducing agent, steaming conditions, dye reduction, drying, and washing. Rongolite C reducing agent (sodium sulfoxylate formaldehyde) added to the warm thickener paste in lumps dissolves and aids dye reduction in situ on the printed fabric. Insufficient steam inhibits the..

Quest for Consistency in Batch Dyeing.

Higher demand for right first time and Just in Time production has increased the need for versatile fabric dyeing machines that operate on a batch rather than continuous basis. Many manufacturers are offering jet dyeing machines with soft flow, overflow, long tube, and round jets. Jig dyeing machines for light weight manmade fabrics featu..

Color Information Management System--For Perfect Color Communication.

Datacolor's Color Information Management System (CIMS) permits objective and accurate communication of color via e-mail. The system uses SF600 plus CT colorimetry, Colortools quality control, DCIMatch color recipe calculation, and Colorite digital color communication software. The Colorite system uses calibrated monitors to ensure that th..