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389 Aktuelle Fachpublikationen in Coloration Technology

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Decolorisation of aqueous reactive dye Remazol Red 3B by electrocoagulation

01.10.2010 | Kobya, Mehmet; Demirbas, Erhan; Sözbir, Mustafa, Coloration Technology, 2010

The present study demonstrated the applicability of the electrocoagulation method for the removal of reactive dye, Remazol Red 3B, in a batch study. Iron electrode material was used as a sacrificial electrode in monopolar parallel mode in this study. The effects of the initial pH, current ...

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Equilibrium and kinetic studies of the cationic dye removal capability of a novel biosorbent Tamarindus indica from textile wastewater

01.10.2010 | Shooka Khorramfar; Niyaz Mohammad Mahmoodi; Mokhtar Arami; Kamaladin Gharanjig, Coloration Technology, 2010

In this paper, the use of tamarind hull biosorbent (Tamarindus indica) has been investigated to remove cationic dyes from textile eflluent. Basic Violet 6 and Basic Red 18 were used as cationic dye models. The surface characteristics of tamarind hull were investigated using Fourier ...

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Changing colours: now you see them, now you don’t

01.08.2010 | Timothy L Dawson, Coloration Technology, 2010

Nature offers a range of colour displays which are relatively short‐lived and which were for many centuries little understood. Today we can explain most which arise from diffraction and reflection effects on rays of sunlight, various atmospheric ionisation phenomena and many colour effects ...

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Studies on the ultrasonic‐assisted dyeing of poly(trimethylene terephthalate) fabric

01.08.2010 | L Wang, H F Zhao, J X Lin; L Wang; H F Zhao; J X Lin, Coloration Technology, 2010

Poly(trimethylene terephthalate) fabric was dyed with Disperse Red FB by using ultrasonic power. The effects of ultrasound on the K/S values of the fabric, the fibre structure and the disperse dye were investigated. The results show that the ultrasonic power increases the K/S values of the ...

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Dyeing and finishing of lyocell union fabrics: an industrial study

01.08.2010 | Joshi, H D; Joshi, D H; Patel, M G, Coloration Technology, 2010

Lyocell union fabrics, namely lyocell/silk and lyocell/polyester fabrics, were woven in different fabric constructions and dyed with reactive dyes, acid dyes and a disperse dye. The resulting dyed fabrics were given a resin finishing treatment and their wash fastness was measured. With ...

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Polymer‐ and wax‐based monoconcentrate predispersed pigments in the colouring of plastics

01.08.2010 | Deshmukh, Suresh P; Parmar, Mahindra B; Rao, Ashok C; Wadhwa, Varinder, Coloration Technology, 2010

Over the past few decades, masterbatch production has been increasing year by year. Pigments are used primarily in masterbatches because of their ability to impart colour or opacity to a matrix. The effectiveness of pigments depends not only on their intrinsic ability to absorb or scatter light, ...

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Relationship between photofading and chemical structure of disperse azo dyes on nylon fabric†

01.08.2010 | Okada, Yasuyo; Hihara, Toshio; Hirose, Mie; Morita, Zenzo, Coloration Technology, 2010

The initial rates of photofading for 30 disperse azo dyes on nylon fabric upon exposure to a carbon arc in air have been analysed by formulating a kinetic equation that describes azo scission via the disproportionation reactions and intramolecular H‐transfer by two kinds of hydrazinyl radicals ...

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Synthesis and spectroscopic properties of novel phthalimide‐derived monoazo disperse dyes containing ester groups

01.08.2010 | Choi, Jae‐hong; Kwon, Oh‐tak; Lee, Hyun‐young; Towns, Andrew D; Yoon, Chun, Coloration Technology, 2010

The synthesis and spectroscopic properties of monoazo dye series, whose members consist of N‐alkylphthalimide diazo components combined with a coupling component containing two ester groups, are reported. Such colourants are potentially alkali‐clearable as a consequence not only of the presence ...

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Modification of polyester fabric by chemical/thermal treatment to improve dyeing ability

01.08.2010 | Raslan, Wafaa M; Bendak, Ahmed; Khalil, Eid M; Fawzi, Thanaa, Coloration Technology, 2010

Attempts were made to enhance the dyeability of polyester fabric by thermal treatment or combined chemical/thermal treatment in hot air or in steam, either slack or under load. Ethanolamine, hydrazine hydrate, ethylene glycol and a benzophenone derivative were applied to the fabric by padding ...

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Synthesis of novel 3‐hetaryl‐substituted 6‐ and 8‐hydroxybenzo[f]coumarin derivatives

01.08.2010 | Deligeorgiev, Todor; Tsvetkova, Teodora; Kaloyanova, Stefka; Ivanova, Diana; Timtcheva, Iliana, Coloration Technology, 2010

Eight novel 3‐hetaryl‐substituted 6‐ and 8‐hydroxybenzo[f]iminocoumarin compounds were synthesised by the reaction of 2,5‐dihydroxynaphthaldehydes or 2,7‐dihydroxynaphthaldehydes with 2‐cyanomethylbenzo‐thiazole, 2‐cyanomethylbenzoimidazole, 1‐methyl‐2‐cyanomethylbenzoimidazole and ...

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