Encyclopedia of Textile Finishing

Rouette, Hans-Karl

doi:10.1007/978-3-642-85271-8

Cited by 89 publications

(71 citation statements)

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“…For this purpose, different chemicals such as cationic agents are applied. [1,2] Reactive dyes are water soluble; due to their electrophilic structure with a good leaving group (e.g., halogen, sulfate), they can react with the hydroxyl groups of cellulose and form, through esterification or etherification, covalent bonds between the dye molecules and the cotton or other cellulosic fibers. These dyes applied to cellulosic fibers are characterized by their excellent washfastness.…”

Section: Introductionmentioning

confidence: 99%

“…Various kinds the fiber softeners, antistatic agents, wet-fastness improvers for dyed textiles, and water repellents are commonly used. [1] Detection of the presence of the abovementioned chemical finishing agents has an important practical (and technological and commercial) aspect. This issue is also important from the scientific and analytical point of view, especially in analysis of textile materials in the form of fiber traces, for forensic purposes.…”

Section: Introductionmentioning

confidence: 99%

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Application of Raman Spectroscopy for Differentiation Among Cotton and Viscose Fibers Dyed with Several Dye Classes

Wąs-Gubała

Machnowski

2014

Spectroscopy Letters

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The difference between natural and regenerated cellulose fibers caused by variations in the degree of polymerization and supramolecular structure, influences dyes adsorption properties. The aim of the study was to discriminate between cotton and viscose fibers, dyed with several dye classes, using Raman spectroscopy. 8 reactive and 6 direct dyes were used for colouring textiles under laboratory conditions. Spectra of fibers were obtained with the use of three excitation sources: 514, 633, and 785 nm. The obtained results allowed for the differentiation of studied types of cellulose fibers, dyed with the same dye, at the same or very similar concentrations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of Raman Spectroscopy for Differentiation Among Cotton and Viscose Fibers Dyed with Several Dye Classes

Wąs-Gubała

Machnowski

2014

Spectroscopy Letters

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“…There are several hundred types of synthetic fiber in the world. Synthetic fibers are often manufactured with cellulose as the starting material (Rouette 2001). Although the manufacturing of synthetic fibers was meant to replace the wide usage of asbestos material in various industries, the results of studies that have been conducted in the laboratory indicate that synthetic fibres can possess the same human health hazard as asbestos material (Su and Cheng 2009).…”

Section: Introductionmentioning

confidence: 99%

Processing and Characterization of Epoxy/Luffa Composites: Investigation on Chemical Treatment of Fibers on Mechanical and Acoustical Properties

et al. 2014

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This study focuses on the development of epoxy/luffa composites and the investigation of their mechanical and acoustical properties. The fibers underwent an alkalization treatment, and its effects on the mechanical and sound absorption properties of the composites were measured utilizing a universal testing machine and two-microphone transfer function impedance tube methods. The effects of chemical modifications on the fibers were studied using a scanning electron microscope (SEM). The thermal analyses of composites were conducted using thermo-gravimetric analysis (TGA). The composite's functional group was identified and evaluated using Fourier transform infrared spectroscopy (FTIR). The sound absorption coefficient of untreated and treated composites across a range of frequencies was very similar. Untreated composites appeared to perform better than those that were treated. Compared with untreated fiber composites, there was an improvement in the tensile strength of the treated fiber composites. The SEM characterization showed that the alkaline treatment changed the morphology of the fibers, resulting in a decrease in the sound absorption coefficients of the composites. The thermal characterization of composites showed that dehydration and degradation of lignin occurred in a temperature range of 40 to 260 °C, and the maximum percentage of cellulose was found to decompose at 380 °C.

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“…É a segunda maior indústria do mundo, abaixo apenas da indústria de alimentos (ROUETTE, 2000), e abrange os setores de fibras, fiação, tecelagem, malharia, beneficiamento têxtil e confecção. O Brasil é o sexto produtor mundial de têxteis e confeccionados e respondendo por 2,5% da produção mundial, em (COSTA e ROCHA, 2009.…”

Section: Introductionunclassified

Processos sustentáveis e conhecimento sobre química verde em pequenas empresas do setor de beneficiamento têxtil

Melin¹,

Costa²,

Araújo³

2011

Tec.Soc.

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ResumoO objetivo deste trabalho é identificar o interesse por processos sustentáveis, conhecimento sobre Química Verde e termos variantes entre profissionais responsáveis pela área produtiva de empresas do segmento de beneficiamento têxtil da Região Metropolitana de São Paulo. Trata-se de estudo exploratório com abordagem quantitativa e qualitativa. Um questionário semiestruturado foi elaborado e enviado a 67 empresas do setor. Utilizou-se de análise estatística descritiva para os dados quantitativos obtidos nas questões fechadas. Para as questões abertas, valeu-se de abordagem qualitativa proposta por Bardin (1977). Os resultados apontam para a necessidade de atenção ao conhecimento de conceitos, inovações e processos químicos alternativos porque os profissionais entrevistados estão pouco atualizados, embora não se reconheçam nessa condição. A legislação ambiental mostrou-se determinante para o envolvimento do setor em práticas mais limpas. Palavras-chave:Desenvolvimento sustentável, Química Verde; Indústria têxtil. Abstract The aim of this study was to identify the interest in sustainable processes, knowledge about Green Chemistry and variants terms among professionals responsible for the productive area of companies in the segment of textile finishing of the Metropolitan Region of São

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Encyclopedia of Textile Finishing

Cited by 89 publications

References 0 publications

Application of Raman Spectroscopy for Differentiation Among Cotton and Viscose Fibers Dyed with Several Dye Classes

Application of Raman Spectroscopy for Differentiation Among Cotton and Viscose Fibers Dyed with Several Dye Classes

Processing and Characterization of Epoxy/Luffa Composites: Investigation on Chemical Treatment of Fibers on Mechanical and Acoustical Properties

Processos sustentáveis e conhecimento sobre química verde em pequenas empresas do setor de beneficiamento têxtil

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