Cotton Dyeing
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Estudo comparativo do tingimento de malha PES/CO com água tratada com resíduo de clarificação de óleo vegetal, na forma natural e calcinada
RESUMO A indústria têxtil utiliza um grande volume de água, o que torna necessário encontrar opções mais sustentáveis para o seu uso, como a reutilização em novos tingimentos. O uso de um resíduo industrial sólido, como adsorvente, poderá ser uma alternativa para tratar o efluente têxtil. Este estudo teve como objetivo testar a viabilidade do re
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Chemical composition and seasonal variation of the volatile oils from Trembleya phlogiformis leaves
ABSTRACT Trembleya phlogiformis DC., Melastomataceae, is a shrub whose leaves are used as a dye for dyeing wool and cotton. The present article aimed to carry out the morphological description of the species, to study the chemical composition of volatile oils from the leaves and flowers and the seasonal variability from the leaves during a year. Macroscopic
Rev. bras. farmacogn.. Publicado em: 2017-08
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3. Removal of reactive blue 21 and reactive red 195 dyes using horseradish peroxidase as catalyst
Abstract-Textile effluent is rich in hydrolyzed dyes that need to be removed. This study presents an evaluation of the potential of the enzyme horseradish peroxidase to remove the hydrolyzed dyes Reactive Blue 21 (RB 21) and Reactive Red 195 (RR 195) from cotton fiber and the effluent of the dyeing process. The parameters pH, dye concentration and temperatur
Braz. J. Chem. Eng.. Publicado em: 2017-07
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4. Estudo da difusão de corantes reativos em tecido de algodão / Study of diffusion of reactive dyes on cotton fabric
O processo de tingimento destinado à área de acabamento nas indústrias têxteis tem relevada importância, onde o corante deve ter boa afinidade com as fibras para garantir a uniformidade da cor. O corante é o principal responsável pela poluição ambiental, já que apresenta elevada durabilidade, e são considerados de difícil degradação natural. Co
Publicado em: 2010
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5. Study of the potential of using waste effluent from the distillation of the leaf oil of eucalyptus (Corymbia citriodora (Hook) Pryor and Johnson 1976), as a natural dyestuff for dyeing cotton fabrics / Estudo do potencial de uso do resíduo efluente gerado da destilação do óleo de folhas de eucalipto (Corymbia citriodora (Hook) Pryor e Johnson 1976), como corante natural para o tingimento têxtil de algodão
Atualmente, os corantes naturais vêm ganhando maior interesse da sociedade, fazendo crescer um novo nicho de mercado, que valoriza produtos obtidos de matériasprimas naturais, devido aos menores danos causados à saúde humana e ao meio ambiente. Uma fonte potencial para obtenção de corantes encontra-se na operação industrial da obtenção de óleo ess
Publicado em: 2010
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6. Reuso do efluente do processo de mercerização no tingimento de malha de algodão
The water consumption tendency increase with the increasing industrial activity and in specific, the textile area has been worring about this natural resources, once the water is a finish resource in our planet and its consumption in the areas how finishing process represents approximately 90% of the general consumption on this industry. The creation of envi
Publicado em: 2007
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7. Treatment corona on surfaces textiles / Tratamento corona sobre superficies texteis
Amongst the techniques of modification of surfaces applied in the industry to improve adhesion, the treatment for discharge corona widely is used. During the treatment for discharge corona, active species are generated, which can consequently react with the surface of polymer causing chain in addition and formation of radicals, thus creating polar groups in
Publicado em: 2007
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8. Reduction of dye in effluent of dyeing process of industrial laundries for adsorption in clay / Redução de corante em efluente de processo de tingimento de lavanderias industriais por adsorção em argila
The textile industries constitute factor of great importance in the Brazilian economy and are grouped in three main staple fiber categories: fabrics of cotton, woolen and synthetic. The environment impact provoked by the sector, the generation of effluent liquids if constitutes in a representative parameter as potentially polluting factor. Moreover, it is on
Publicado em: 2005
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9. The modelling of a textile dyeing process utilizing the method of volume averaging
In this work the modelling of a process of textile dyeing of a single cotton thread is presented. This thread moves at a constant velocity within a homogeneous dye solution under steady state conditions. The method of volume averaging is applied to obtain the mass transfer equations related to the diffusion and adsorption process inside the cotton thread on
Brazilian Journal of Chemical Engineering. Publicado em: 2003-10
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10. Caracterização de Efluente Têxtil e Proposta de Tratamento
Textile industry deals with a high diversity of processes and generation of wastewaters with a high content of pollutant material. Before being disposed of in water bodies, a pre-treatment of the effluent is carried out, which is sometimes ineffective. In order to be properly treated, physical and chemical properties of the effluent must be known, as well as
Publicado em: 2000