The efficiency of washing agents in the post-dyeing removal of hydrolyzed reactive dye

Akçakoca, E. Perrin; Özgüney, Arif Taner; Atav, Rıza

doi:10.1016/j.dyepig.2005.07.011

Cited by 16 publications

(8 citation statements)

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“…Generally, these vagrant dyes are removed by a wash‐off process with the production of a great deal of dyeing wastewater. According to incomplete statistics, one‐third of the effluent – chemical oxygen demand (COD) – from total dyeing is related to washing procedures to remove vagrant dyes and auxiliaries . Moreover, a great of energy and water consumption, as well as the treatment of the resulting effluent, typically accounts for the major part of the total cost of dyeing (about 50%) .…”

Section: Introductionmentioning

confidence: 99%

The performance of chitosan/gelatin composite microspheres in the wash‐off procedure of reactive dyeing

Wang

Xue

2016

Coloration Technology

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A chitosan/gelatin composite microsphere (CGMS) adsorbent prepared by inverse suspension was used as a reactive dye washing agent. Techniques such as scanning electron microscopy, X‐ray diffraction analysis, and atomic force microscopy facilitated the evaluation of the materials. A series of experiments were conducted to assess the effect of variables, i.e. initial pH, temperature, microsphere dosage, and contact time. The wash‐off effectiveness increased with increase in temperature and decrease in pH. Results obtained from this study showed that it was possible to reduce the number of wash‐off stages and the water consumption. Furthermore, the microspheres had the properties of resistance to hard water and electrolyte as a wash‐off agent. The efficiency of the microspheres can rival routine detergent in colour fastness, while the chemical oxygen demand of the wash‐off residue of the microspheres amounted to about 1/10 of the chemical oxygen demand of detergent wash‐off residue. This research proved that chitosan/gelatin composite microspheres are a potential candidate for use as an adsorbent washing agent for reactive dyes.

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Section: Introductionmentioning

confidence: 99%

The performance of chitosan/gelatin composite microspheres in the wash‐off procedure of reactive dyeing

Wang

Xue

2016

Coloration Technology

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“…Mnoga istraživanja su usmerena na proučavanje faktora koji utiču na hidrolizu reaktivnih boja i supstantivnost hidrolizovanog oblika [3][4][5], kao i na proučavanje efi kasnosti sredstava za pranje kod uklanjanja hidrolizovane boje (slika 2) [6][7][8]. Faktori koji regulišu proces pranja su: vreme, temperatura, tip sredstva za pranje i koncentracija sredstva za pranje.…”

Section: Slika 1: Reakcije Boje Sa Pamukom I Vodomunclassified

Removal of hydrolized reactive dyes from cotton fabric after dyeing

Ristić¹,

Ristić²,

Marković-Nikolić³

et al. 2019

Tekstilna industrija

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Uklanjanje hidrolizovane reaktivne boje važna je faza rada u bojenju pamuka jer utiče na eksploataciona i higijenska svojstva tekstilnih proizvoda. Kao veliki potrošač vode i hemikalija ovaj radni proces proučava se sa aspekta uštede prirodnih resursa i zaštite životne sredine. U ovom radu pruočavan je učinak sredstava za pranje na bazi tenzida različitog jonogeniteta kao i čiste vode na uklanjanje hidrolizovanih reaktivnih boja različitih funkcionalnih grupa. Dobijeni rezultati upućuju na zaključak da čista voda pri većem odnosu kupatila (1:30) i vremenu pranja 30 min može biti efi kasno sredstvo za uklanjanje hidrolizovane monoreaktivne boje. Kod uklanjanja hidrolizovane bifunkcionalne boje pored odnosa kupatila i vremena pranja i koncentracija tenzida može da ima značajan uticaj na učinak procesa.

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“…In recent years, alternative washing processes for the removal of hydrolyzed reactive dye have been intensively studied. These procedures lower water consumption, reduce or completely reject the use of chemicals and reduce the process duration [13][14][15]. The research shows that the removal of hydrolyzed dye occurs within the first 15 min of washing and the conventional washing process in 5 baths could be successfully replaced by "hot washing"a process with 3 baths at 98°C without the use of chemicals.…”

Section: Introductionmentioning

confidence: 99%

Ecological alternatives to conventional dyeing of cotton with reactive dyes

Ristić¹,

Zdravković²,

Mičić³

et al. 2020

Zaštita materijala

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Cotton dyeing is usually performed by reactive dyes by exhaustion method. Great quantities of salts and alkalis used in the formulation of dyeing bath eventually get into the watercourses and negatively affect the environment. In this work, studied are the possibilities of reducing salt and alkali concentrations in the dyeing bath in order to reduce water pollution after the dyeing process and soap washing. The obtained results show that the alternative procedures are environmentally more favorable, which is demonstrated by reduced values chemical oxygen demand. High level of dye fixation and fastness was achieved, while the colour intensity was slightly lower in comparison with standard samples.

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The efficiency of washing agents in the post-dyeing removal of hydrolyzed reactive dye

Cited by 16 publications

References 0 publications

The performance of chitosan/gelatin composite microspheres in the wash‐off procedure of reactive dyeing

The performance of chitosan/gelatin composite microspheres in the wash‐off procedure of reactive dyeing

Removal of hydrolized reactive dyes from cotton fabric after dyeing

Ecological alternatives to conventional dyeing of cotton with reactive dyes

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