Relationship between colour fastness and colour strength of polypropylene fabrics dyed in supercritical carbon dioxide: effect of chemical structure in 1,4‐bis(alkylamino)anthraquinone dyestuffs on dyeing performance

Miyazaki, Keisuke; Tabata, Isao; Hori, Teruo

doi:10.1111/j.1478-4408.2011.00331.x

Cited by 28 publications

(23 citation statements)

References 34 publications

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“…Dyeing polypropylene (PP) fibres with commonly used methods is extremely difficult because of their high crystallinity and non‐polar aliphatic structure, which does not contain any sites to which certain types of dye may bind . Studies on PP dyeing in an aqueous system showed that dyestuffs with higher hydrophobicity than those commonly used for PET dyeing are required .…”

Section: Supercritical Dyeing Of Other Synthetic Fibresmentioning

confidence: 99%

“…Studies on PP dyeing in an aqueous system showed that dyestuffs with higher hydrophobicity than those commonly used for PET dyeing are required . Therefore, supercritical dyeing of PP could be a suitable alternative . Tests with different classes of disperse dyes were performed and it was found that the dyeability of PP improved when both the hydrophobicity and aliphaticity of the dye were high .…”

Section: Supercritical Dyeing Of Other Synthetic Fibresmentioning

confidence: 99%

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Supercritical fluid dyeing of synthetic and natural textiles – a review

Banchero

2012

Coloration Technology

162

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Supercritical fluid dyeing is an interesting alternative to the conventional aqueous process because of its environmental benefits. The aim of the paper is to provide the reader with an up‐to‐date overview of this subject, covering various aspects, such as the solubility and equilibrium partitioning of the dyes, mass transfer phenomena and solvent–polymer interactions occurring during coloration, up to the most recent reports on the technology of the dyeing process. Even though the best results have been obtained in the coloration of synthetic textiles, particular attention is given to the dyeing of natural textiles, which is, at the moment, the limiting step of this technology.

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Section: Supercritical Dyeing Of Other Synthetic Fibresmentioning

confidence: 99%

Section: Supercritical Dyeing Of Other Synthetic Fibresmentioning

confidence: 99%

Supercritical fluid dyeing of synthetic and natural textiles – a review

Banchero

2012

Coloration Technology

162

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“…According to recent research [30], the affinity of a series of 1,4‐bis(alkylamino)anthraquinone dyestuffs to polypropylene fibres increased as the alkyl chains on the molecule became longer, and the dyestuff with alkyl chains shorter than isopropyl was not able to sorb into polypropylene fibres. For comparison, the aliphatic ratios of a series of 1,4‐bis(alkylamino)anthraquinone dyestuffs are shown in Table 2.…”

Section: Resultsmentioning

confidence: 99%

“…According to studies on polypropylene dyeing in an aqueous system, the dyestuffs for extremely hydrophobic fibres such as polypropylene require a more extreme hydrophobicity than the dyestuffs commonly used for polyester fibres [23–29]. In our recent study [30], also on scCO 2 , the highly hydrophobic dyestuffs were suitable for dyeing polypropylene fibre. It seems that the dyeing properties are related to the structural character of the molecule of the dyestuff.…”

Section: Introductionmentioning

confidence: 95%

Effects of molecular structure on dyeing performance and colour fastness of yellow dyestuffs applied to polypropylene fibres in supercritical carbon dioxide

Miyazaki

Tabata

Hori

2011

Coloration Technology

Self Cite

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Thirteen dyestuffs of four chemical classes (quinophthalone, anthraquinone, isothiazole‐fused anthrone and pyridone azo) were applied for the dyeing of unmodified polypropylene fibres in supercritical carbon dioxide. From these 13 dyestuffs, three dyestuffs that have a pure yellow hue and good dyeability for polypropylene fibres were found. The results of a dyeability test using the 13 dyestuffs suggested that the affinity for polypropylene fibres requires, in the structural character of the dyestuff molecule, not only extreme hydrophobicity but also high aliphaticity. The isothiazole‐fused anthrone nonanamide dyestuff and two types of N‐butyl substituted pyridone azo dyestuffs were examined for build‐up and colour fastness properties. The light fastness of the dyed fabric was not so good. The ratings of fastness to washing, perspiration and rubbing ranged from excellent to fairly good with the increase of the depth of shade. From the relationship between the build‐up curve and the colour fastness, it was found that the dyestuff of the isothiazole‐fused anthrone nonanamide is suitable for polypropylene dyeing in a pale or medium shade, and that the two types of N‐butyl substituted pyridone azo dyestuffs are suitable in a deep shade.

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“…As a consequence in the last few decades, various researchers focused their efforts on the synthesis of new dyes for these fibers [7][8][9][10][11][12]. The success of dyeing synthetic textiles, particularly polyester [13][14][15][16][17][18][19][20][21][22][23], with disperse dyes in scCO2 prompted research application of this technique to other synthetic fibers such as polypropylene [24], and aramid fibers [25] or alternative natural fabrics like cotton [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Disperse Dyeing and Functional Finishing of Nylon 6 Using Supercritical Carbon Dioxide

Elmaaty

El-Aziz

et al. 2015

Fibers

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Abstract:In this work, a supercritical carbon dioxide assembly was successfully constructed for dyeing Nylon6 fabric. Primary experiments were carried out to confirm the possibility of bringing the dyeing up to factory scale. A series of disperse azo dyes with potential antibacterial activity were applied to dye the fabric under our study in supercritical carbon dioxide (scCO2). The factors affecting the dyeing conditions (i.e., dye concentration, time, temperature and pressure) and functional properties were discussed and compared with those in aqueous dyeing. The comparison revealed that elimination of auxiliary chemicals such as salt, carrier or dispersing agent has no diverse effect on dyeing. The color strength of the dyed fabric evaluated by using K/S measurements increased by increasing dye concentration from 2% to 6% owf. (on weight of fabric). The nylon6 fabrics dyed in supercritical carbon dioxide have good fastness properties, and especially light fastness compared with conventional exhaustion dyeing. Antibacterial activity of the dyed samples under supercritical conditions was evaluated and the results showed excellent antibacterial efficiency.

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Relationship between colour fastness and colour strength of polypropylene fabrics dyed in supercritical carbon dioxide: effect of chemical structure in 1,4‐bis(alkylamino)anthraquinone dyestuffs on dyeing performance

Cited by 28 publications

References 34 publications

Supercritical fluid dyeing of synthetic and natural textiles – a review

Supercritical fluid dyeing of synthetic and natural textiles – a review

Effects of molecular structure on dyeing performance and colour fastness of yellow dyestuffs applied to polypropylene fibres in supercritical carbon dioxide

Eco-Friendly Disperse Dyeing and Functional Finishing of Nylon 6 Using Supercritical Carbon Dioxide

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