Application of Dyes by Dyeing

Optimization of enzyme immobilization on functionalized magnetic nanoparticles for laccase biocatalytic reactions

“…Los colorantes sintéticos son compuestos orgánicos, de naturaleza aromática, que imparten color a un sustrato debido a la absorción selectiva de la luz [66]. Por su condición de alta solubilidad en el agua, estas moléculas son ampliamente usadas en diferentes procesos industriales asociados a la tinción de fibras textiles, alimentos y cosméticos, entre otros [67], [68]. Se estima que actualmente existen más de 100.000 colorantes comerciales con una producción superior a 1x10 6 toneladas por año [69]- [71]; desafortunadamente, alrededor del 15% de los colorantes usados en los procesos de tinción son descargados en los cuerpos de agua [72], ocasionando una grave problemática de orden económico, ambiental y social [5].…”

The roles of elevated temperature and carriers in the dyeing of polyester fibres using disperse dyes: Part 1 fundamental aspects

“…Moreover, as the aqueous dyeing of PET fibres using disperse dyes has been extensively studied 8,47,48,50,55,83,86,90,323,457,520,[558][559][560][561][562] and disperse dyes also enjoy usage on CA, CTA and PA fibres (eg, 50,83,462,463,561,[563][564][565][566][567] ), the following is intended to serve as a very brief, introductory overview of this quite large topic. Exhaust dyeing processes utilised for aqueous disperse dye/PET fibre and disperse dye/carrier/PET fibre systems comprise three temperature-regulated stages, namely, a heating up stage, an isothermal stage and a cooling down stage, as represented by the simple graphic displayed in Figure 23.…”

“…Moreover, as the aqueous dyeing of PET fibres using disperse dyes has been extensively studied 8,47,48,50,55,83,86,90,323,457,520,558–562 and disperse dyes also enjoy usage on CA, CTA and PA fibres (eg, 50,83,462,463,561,563–567 ), the following is intended to serve as a very brief, introductory overview of this quite large topic.…”