Diversity-oriented synthesis of azo disperse dyes with improved fastness properties via employing Ugi four-component reaction

Li, Huanhuan; Qian, Heng; Feng, Gaofeng

doi:10.1016/j.dyepig.2019.02.039

Cited by 7 publications

(7 citation statements)

References 28 publications

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“…On the other hand, -H-and -CH 3 -containing dyes exhibited either similar K/S values (4d and 4j) on both fibres or slightly higher K/S values (4a and 4g) on PET fibres at 2% owf concentration dyeing (Figure 4 and Table 1). 30 The exhaustion properties of all fibre samples dyed with 4a-4j dyes at 2% owf depth of shade are shown in Figure 6 and listed in Table 1.…”

Section: Colorimetric Characteristics Of Pla and Pet Fabrics Dyed Wmentioning

confidence: 99%

“…5,25,29 It should be noted that the commercial disperse dyes utilised for PLA coloration were actually developed for PET fibre coloration. [30][31][32][33] In this study, heterocyclic disazo disperse dyes, synthesised in our previous work, 34 were applied to PLA and PET fibre fabrics to examine the performance of such novel dyes. The dyeing performances of all synthesised dyes on both fabrics were compared according to their exhaustion, colour, and colour fastness performances.…”

Section: Introductionmentioning

confidence: 99%

“…It is known that the wet fastness (eg washing, rub) of dyed PLA typically tends to be slightly lower than that of PET at similar depths of shade 5,25,29 . It should be noted that the commercial disperse dyes utilised for PLA coloration were actually developed for PET fibre coloration 30‐33 …”

Section: Introductionmentioning

confidence: 99%

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Dyeing of poly(lactic acid) fibres with synthesised novel heterocyclic disazo disperse dyes

Avinç

Bakan

Demirçalı

et al. 2020

Coloration Technology

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Poly(lactic acid) (PLA) is the first melt-processable, renewable, sustainable and biodegradable natural-based synthetic fibre. It has a broad range of uses and combines ecological advantages with outstanding performance in textiles. PLA fibre, as an aliphatic polyester, can be dyed with disperse dyes. Apart from the limited number of commercial disperse dyes, disperse dye exhaustion on PLA is generally lower than that on poly(ethylene terephthalate) (PET). In this study, new heterocyclic disazo disperse dyes, substituted with methyl, nitro and chloro groups at their ortho-, metaand para-positions, synthesised in our previous study, were applied to PLA and PET fibres to examine their dyeing performance, and colour fastness and dye exhaustion properties. Different shades of yellow, orange, reddish brown and brown were obtained. Most of the synthesised novel heterocyclic disazo disperse dyes exhibited good build-up properties with high K/S levels on both fibres. Para-bonding substituent provided higher K/S values than meta-and ortho-positions for-NO 2 and-Cl substituents for both fibres. Overall, the most synthesised novel heterocyclic disazo disperse dyes in this study exhibited good build-up properties with high K/S, exhaustion and wet fastness levels on both PLA and PET fibres. How to cite this article: Avinc O, Bakan E, Demirçalı A, Gedik G, Karcı F. Dyeing of poly(lactic acid) fibres with synthesised novel heterocyclic disazo disperse dyes.

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Section: Colorimetric Characteristics Of Pla and Pet Fabrics Dyed Wmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dyeing of poly(lactic acid) fibres with synthesised novel heterocyclic disazo disperse dyes

Avinç

Bakan

Demirçalı

et al. 2020

Coloration Technology

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“…The dyes used in this study were synthesised by the coupling action between the selective hydrolysis product derived from a Ugi four‐component reaction and different diazonium salts. It was reported in our previous study that this new type of dye has good colour fastness properties when applied to polyester and nylon fibres 18 . The purpose of the current study is to explore the adsorption performance of the new dyes on PU fibres and to compare them with conventional dyes, which have the same parent structure as the new dyes.…”

Section: Introductionmentioning

confidence: 99%

“…However, polymer modification alters the mechanical properties of the PU polymer, leading to an undesirable result. The other way is to modify the dye’s molecular structure to increase the dye‐fibre affinity or to design a novel structure of dye that allows the stained dyes on the surface of PU fibres to hydrolyse into a colourless compound during alkaline clearing, thus improving the fastness properties 14‐18 …”

Section: Introductionmentioning

confidence: 99%

Dyeing properties on polyurethane fibres of novel azo disperse dyes prepared from a four‐component Ugi reaction

Feng

Fang

et al. 2020

Coloration Technology

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A new group of azo disperse dyes prepared by the Ugi four‐component reaction were used to dye polyurethane fibres. It was found that all the new dyes showed excellent fastness properties. One of the new dyes was selected to investigate the adsorption properties on polyurethane fibres, including the dyeing rate, adsorption isotherm, surface adsorption state, colour characteristics and colour fastness. The results were compared with those of CI Disperse Orange 3, which has the same parent structure as the new dye. The results indicated that the new dye has a lower dyeing rate and solubility but a higher affinity and adsorption capacity than the conventional dye due to its larger molecular weight and size. In addition, the aggregation of the new dye on the surface of polyurethane fibres occurred at higher concentrations whereas the conventional dyes aggregated at a lower concentration, resulting in lower colour fastness. This demonstrates that these new dyes derived from the Ugi four‐component reaction are worth developing further and are of great application value for polyurethane fibres.

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Dyes: Classification, Pollution, and Environmental Effects

Benkhaya

M’rabet

Lgaz

et al. 2021

Dye Biodegradation, Mechanisms and Techniques

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Diversity-oriented synthesis of azo disperse dyes with improved fastness properties via employing Ugi four-component reaction

Cited by 7 publications

References 28 publications

Dyeing of poly(lactic acid) fibres with synthesised novel heterocyclic disazo disperse dyes

Dyeing of poly(lactic acid) fibres with synthesised novel heterocyclic disazo disperse dyes

Dyeing properties on polyurethane fibres of novel azo disperse dyes prepared from a four‐component Ugi reaction

Dyes: Classification, Pollution, and Environmental Effects

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