Knitwear

Growth in cotton/Lycra knitwear has been Strong. Blends of 95 percent cotton and 5 percent Lycra present no problems in dyeing and finishing. As the percentage of Lycra increases, however, it becomes more difficult to keep fabric weight constant. Brazzoli's Saturno Turbo machine is optimal for dyeing open widths of these blends. Its major..

Application of the Low-Temperature Plasma in Preparation Processes of Linens.

Researchers developed a method for the preparation of gray linen fabrics with a low temperature glow discharge air plasma. Short (1-2 minute) treatments improved the hydrophilic properties of the fabrics. Furthermore, the plasma treatment facilitated subsequent size removal. Short term plasma treatment followed by washing removed as much ..

Ecotoxicological requirements for dyestuff ranges - parameters for direct and reactive dyestuff systems

Important aspects of safety at work and effluent loading at the pretreatment and dyeing stages are discussed, together with textile eco-label requirements. Loads in individual wet finishing processing stages can be evaluated in terms of dye and auxiliary parameters and plant and processing data. Measurements complement computer data. With..

Ultraviolet enhanced oxidation for color removal of azo dye wastewater

The decolorization of eight commercial azo dyes has been studied in a pilot scale photochemical reactor which employs W light and hydrogen peroxide to generate hydroxyl radicals for the destruction of organics in aqueous phase. Results of the decolorization of the simulated dye wastewater were measured by absorbance at characteristic wave..

Changes in the chemical composition of wool during dyeing and finishing and their effects on fabric properties

The chemical composition of a wool fabric is determined after each of a variety of dyeing and finishing processes. The main concern is to observe the effect of dye-fiber interactions and dyeing recipe differences. Dyeing liquor pH and decatizing have a large influence on chemical composition. Reactive dyes react at histidine and cysteine ..

양모에 비닐단량체 그라프트 중합의 효과

이 보고는 Barr의 다른 보고 [Text. Chem. Color., 26, Dec. 31 (1994)]와 같은 내용이다. 그러므로 간단히 소개한다. 레독스 촉매(브롬산칼륨 - 초산코발트계)를 사용한 양모에의 메타크릴산 에스테르의 그라프트중합은 양모에 방축성을 부여함과 동시에 산성염료에 의한 염색성, 인장강도, 태의 변화를 부여한다. 그것들의 성질을 그라프트율의 증가와 동시에 3단..

Principles of Wastewater Contaminant Calculation Exhaust Dyeing of Cellulosic Fibers with Vat and Reactive Dyes.

BASF has written a computer program to predict the contamination of wastewater that results from vat dyeing with Palanthrene dyes or reactive dyeing with Basilen dyes. The predictive model considers such parameters as chemical oxygen demand; the quantities of absorbable organic halogen, heavy metals, sulfites/sulfates, and chlorides in ef..

Recycling: The Present and the Future.

Wellman Incorporated, the largest recycler of postconsumer plastics in the United States, reclaims, cleans, processes, manufactures, and promotes its recycled polyester staple fiber. Wellman recycles clear and green soft drink bottles obtained from deposit return and curbside recycling programs. The more than 1 billion soft drink bottles ..

Colour Removal With Adsorbents Derived From Rice Husk (Part A)

Researchers performed a laboratory investigation of color removal from reactive dye effluent using activated carbon derived from rice busks. The investigation prepared and filtered a stock dye solution and measured the optical density of the residual liquor using a spectrophotometr. Variations in dye concentration, carbon load, pH, and so..

Health and Environmental Safety Aspects of Organic Colorants.

A review of developments during the last decade on the health and environmental safety of organic colorants focused on their toxicological properties. Toxicological hazards associated with dyes include skin sensitization, typically due to impurtieies, or, in some cases, due to disperse dyes from the azo and anthraquinone chemical classes...