Eco-friendly dyeing of cationised cotton with reactive dyes: mechanism of bonding reactive dyes with CHPTAC cationised cellulose

Pruś, Stanisław; Kulpiński, Piotr; Matyjas-Zgondek, Edyta; Wojciechowski, Krzysztof

doi:10.1007/s10570-022-04521-w

Cited by 28 publications

(14 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dye aggregates can be broken during DMF extraction leading to an increase in colour strength and an increase in the degree of bonding, up to 100%. It can be noted that this phenomenon is more intense for Cell-O-[HPTA] + Cl − (our earlier study [21]) than for [Cell-O-IME] + Cl − . with boiling DMF in contrast to the samples of non-cationised cellulose.…”

Section: Resistance Of Dyed [Cell-o-ime] + CL − For Extraction With Dmfmentioning

confidence: 50%

“…Obtained results are comparable and even better than on cellulose cationised with CHPTAC and dyed in the same eco-friendly conditions. 5 is also on the level of these values for conventional dyeing methods with dyes described in the research of [21]. Obtained results are comparable and even better than on cellulose cationised with CHPTAC and dyed in the same eco-friendly conditions.…”

Section: Resistance Of Dyed [Cell-o-ime] + CL − For Extraction With Dmfmentioning

confidence: 67%

“…It confirmed covalent bonds between the reactive group of the dye and the hydroxyl group in the modifier chain. The RDMF presented in Table 5 is also on the level of these values for conventional dyeing methods with dyes described in the research of [21]. Obtained results are comparable and even better than on cellulose cationised with CHPTAC and dyed in the same eco-friendly conditions.…”

Section: Evaluation and Confirmation Of The Type Of Binding Between T...mentioning

confidence: 80%

“…The resistance to DMF extraction was performed according to the procedure described elsewhere [21]. The colour strength of dyed non-cationised and cationised cotton samples before and after treatment with DMF were determined based on the evaluation of colourimetric measurements using a Datacolor 850 spectrophotometer.…”

Section: Resistancy For Dmf Extraction Of Dyed Cationised Cellulosementioning

confidence: 99%

“…The most environmentally friendly conditions for the dyeing of cationised cellulose, i.e., room temperature and a bath without electrolytes and alkalis, were used. It was assumed that the reaction mechanism of dyeing in those conditions would be similar to that previously discovered when dyeing cationised cellulose with CHPTAC [21]. Five reactive dyes with different reactive groups were selected for the experimental studies.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Mechanism of Bonding Reactive Dyes with Copolymer (chloromethyl)oxirane-1H-imidazole cationised Cellulose

et al. 2022

Self Cite

View full text Add to dashboard Cite

Introducing the cellulose chain cationic groups in the modification process completely changes the charge on the cotton surface from negative to partially or totally positive. That allows the electrostatic attraction and simultaneous exhaustion and fixation of reactive dyes. This reaction can be carried out without salt and alkali at room temperature. Similarly, the reaction between reactive dye and an alone copolymer ([IME]+Cl−) with TLC chromatography was confirmed. The analysis with the use of particle optimisation with MM+ molecular mechanics and quantum-chemical calculations PM3 by the method of all valence orbitals confirmed the experimental results of the high activity of the nucleophile formed on the hydroxyl group in the chain of a modifier. It was found and experimentally confirmed that the reactive dyes during the dyeing process of the cotton cationised with copolymer (chloromethyl)oxirane -1H-imidazole ([IME]+Cl−) create covalent bonds due to a reaction with the hydroxyl group located in the modification agent instead of with the hydroxyl group in the glucopiranose ring. Although the dyeing takes place in very mild conditions, a high degree of setting is achieved, comparable to conventional methods.

show abstract

Section: Resistance Of Dyed [Cell-o-ime] + CL − For Extraction With Dmfmentioning

confidence: 50%

Section: Resistance Of Dyed [Cell-o-ime] + CL − For Extraction With Dmfmentioning

confidence: 67%

Section: Evaluation and Confirmation Of The Type Of Binding Between T...mentioning

confidence: 80%

Section: Resistancy For Dmf Extraction Of Dyed Cationised Cellulosementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mechanism of Bonding Reactive Dyes with Copolymer (chloromethyl)oxirane-1H-imidazole cationised Cellulose

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

Salt-Free Dyeing of Cellulosic Fibers

Eren,

Ozturk

et al. 2024

Sustainable Textiles: Production, Processing, Manufacturing &Amp; Chemistry

View full text Add to dashboard Cite

Low-level cationisation of cotton opens a chemical saving route to salt free reactive dyeing

et al. 2023

View full text Add to dashboard Cite

Cationisation of cellulose fibres has been studied extensively as an alternative to permit salt free reactive dyeing, however chemical balances of the cationisation reaction often are not taken into account. The chemical consumption of cationisation processes described in the literature is substantial and often over-compensates savings in salt in a conventional reactive dyeing. Besides very high consumption of chemicals the high level of cationisation generates problems of uneven dyeings and shade variations. In a new approach low concentrations of 3-chloro-2-hydroxypropyl-N,N,N-trimethylammonium chloride (CHPTAC) were applied in a pad batch cationisation process for cotton fabric to achieve a low level cationisation. The cationic group content of the processed fibres ranged from 5 to 79 mmol kg−1. Exhaust dyeing experiments with Reactive Blue 19 demonstrated that a salt free reactive dyeing is possible with low cationic group content 14 mmol kg−1. The optimised low-level cationisation reduces the overall chemical consumption of the reactive dyeing, and thus represents a cleaner alternative to present reactive dyeing operations which are based on addition of high amounts of salt.

show abstract

Eco-friendly dyeing of cationised cotton with reactive dyes: mechanism of bonding reactive dyes with CHPTAC cationised cellulose

Cited by 28 publications

References 19 publications

Mechanism of Bonding Reactive Dyes with Copolymer (chloromethyl)oxirane-1H-imidazole cationised Cellulose

Mechanism of Bonding Reactive Dyes with Copolymer (chloromethyl)oxirane-1H-imidazole cationised Cellulose

Salt-Free Dyeing of Cellulosic Fibers

Low-level cationisation of cotton opens a chemical saving route to salt free reactive dyeing

Contact Info

Product

Resources

About