A review of QSAR for dye affinity for cellulose fibres

Timofei, Simona; Schmidt, W.; Kurunczi, Ludovic; Simon, Zeno

doi:10.1016/s0143-7208(00)00058-9

Cited by 65 publications

(70 citation statements)

References 54 publications

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“…In accordance with Akar et al [35] and Rizzi et al [15], the reported spectrum provided evidence of the presence of the main components of olive pomace [15,36,37]. Bands were observed in the wavenumbers region between 3600-2800 cm −1 and 1800-800 cm −1 .…”

Section: Ftir-atr Spectroscopic Measurementssupporting

confidence: 89%

“…As already observed for the disperse blue dye [15], these findings suggested the presence of interaction between DO and DR and OPP via hydrogen bonds and van der Waals forces involving the main components of olive pomace and dye molecules. The interaction with cellulose or cellulose-like structure was thus suggested [36]; in fact, not surprisingly, disperse dyes are used to color cellulose fibers [35][36][37][38][39]. The absence of the main IR bands in OPP + dyes spectra suggested that the dye molecules were blocked inside olive pomace matrix, deshielding them from detection [15,39].…”

Section: Ftir-atr Spectroscopic Measurementsmentioning

confidence: 97%

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An Alternative Use of Olive Pomace as a Wide-Ranging Bioremediation Strategy to Adsorb and Recover Disperse Orange and Disperse Red Industrial Dyes from Wastewater

et al. 2017

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Abstract:In this paper, industrial dyes, Disperse Red and Disperse Orange, were studied as model pollutants to show the excellent performance of olive pomace (OP) in sequestering and recovering these dangerous dyes from wastewater. The nature of interactions involved between dyes and OP were inferred by changing several parameters: contact time, pomace dosage, pH and temperature values. Visible spectroscopy was mainly used to obtain the percentage of the removed dyes, while SEM (scanning electron microscopy), FTIR-ATR (Fourier transform infra-red spectroscopy in total attenuated reflectance), TG (thermo gravimetric) and XPS (X-ray photoelectron spectroscopy) analyses were used to carefully investigate the systems. The recovery of dyes was also obtained using glacial acetic acid, the auxiliary solvent used during the dyeing processes, enabling the recycling of both of the adsorbent material and dyes presenting a green and a wide-ranging strategic approach.

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Section: Ftir-atr Spectroscopic Measurementssupporting

confidence: 89%

Section: Ftir-atr Spectroscopic Measurementsmentioning

confidence: 97%

An Alternative Use of Olive Pomace as a Wide-Ranging Bioremediation Strategy to Adsorb and Recover Disperse Orange and Disperse Red Industrial Dyes from Wastewater

et al. 2017

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“…A wide range of reactive groups have been investigated, with 20-30 used commercially and over 200 patented. These have been described in detail elsewhere (20,51). Because these reactive groups differ chemically, the activation of the reactive systems is different as are the rates of reaction with cellulose, from one reactive system to another.…”

Section: Fiber-reactive Dyesmentioning

confidence: 99%

“…In practice, the appropriate HOMO-LUMO gaps are found in conjugated aromatic systems that contain electron donor groups (eg, amino, substituted amino, and hydroxy) and acceptor groups (eg, nitro and cyano), the socalled donor-acceptor colorants (19). Sophisticated molecular modeling has allowed some success in predicting the color of a given structure, but the accuracy of prediction is not at the point where dyestuff synthesis is a paper exercise; the prediction of the dyeing properties of a dye and substantivity for a fiber from its chemical structure is even further away, although some initial efforts at quantitative structure-activity relationships (QSAR) of dyes and fibers, largely based on those that predict the activity of pharmaceuticals, have been made (20).Correlation between classifications according to chemical type and application properties is limited. Application-based classifications are of most practical usefulness to the dyer, and therefore the chemical constitutions of dyes are described here only briefly.…”

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confidence: 99%

Dyeing

Bide

2016

Kirk-Othmer Encyclopedia of Chemical Technology

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DYEINGFor those who see color, the world is a colorful place. Most humans have color vision and they enjoy and appreciate the wide palette of nature. We use colors to imitate nature, and to decorate our environment, our food, and ourselves. For most colors under human control, a colorant can be included when an item is formed (such as for an extruded plastic object) or combined in some medium that is applied to a surface (eg, paints and cosmetics). For clothing, furnishing, and in many other end-uses, textile materials are ubiquitous. The process of dyeing, in which a colorant penetrates the substrate, is used to color them. The same dyeing process is occasionally used to color paper and leather, and textiles can be colored by nondyeing means, but textiles and dyeing have a high degree of mutual inclusivity.The global consumption of textiles in 2012 was estimated at 83 million tonnes, of which 55 million tonnes was synthetic (including almost 40 million tonnes of polyester) and 23 million tonnes was cotton. Manufactured cellulosic and other natural fibers constituted the remaining 5 million tonnes (1). Fiber use has continued to increase at a rate faster than the growth of population. Dye is applied to these fibers at a rate of approximately 1-2%, ie, the annual production of synthetic dyes is approximately 1 million tonnes (2,3).Dyeing occurs when a soluble colorant is adsorbed at the surface of a fibrous substrate, and then diffuses into the substrate. What follows is a detailed examination of this basic process in both theoretical and practical terms. Dyes, Pigments, and FibersColorants are typically divided into dyes and pigments. The demarcation between them is primarily based on their solubility; a pigment relies on insolubility of the medium in which it is dispersed, while a dye requires some degree of solubility, maybe low or maybe temporary, that will allow it to diffuse into the polymeric matrix of a textile fiber. In order for a colored substance to be considered as a useful dyestuff, factors beyond solubility are required. A dyestuff must be substantive for a textile and thus be preferentially taken up by the fiber, usually from an aqueous solution. The uptake should be high enough to be economic, and the rate at which the dyeing occurs should be controllable to give a uniform level result. The dyed textile should have satisfactory fastness for the intended end use. The process of dyeing therefore combines chemistry, application technology, economics, and customer needs.1.1. Dyes: Natural vs Synthetic. Dyeing is an ancient practice. Originally, all dyes were of natural origin obtained locally from plants and even animals. Tyrian purple, obtained from a species of whelk, gave rise to the "purple of the emperors," its elevated status arising from the cost and effort involved in extracting useful quantities of colorant. As communication developed, dyes and dyed textiles were among the important items of trade, and technically superior natural dyes often supplanted local materials. Indigo from India and M...

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“…This leads to favorable properties, such as wash fastness. Furthermore, unfix dye reacts with water to form hydrolyzed or oxy-dye that has lost its bonding capacity, and thus cannot be reused [10,11]. The dyes for this research were selected from Novacron series reactive dyes by Huntsman.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Effects of Pre-treatment in Dyeing Properties of Cotton Fabric and Impact on the Environment

MR¹,

Hossain²,

X³

et al. 2016

J Textile Sci Eng

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Pre-treatment of cotton fabric prior to dyeing mainly involves a combined process consisting of scouring and peroxide bleaching. In this study main focus on to find out the major problem facing during dyeing of cotton fabrics. Pretreatment process has a greater impact on whiteness and dyeing properties of fabrics and also on environment. There are two process of pretreatment which is alkaline scouring and bleaching process and another is enzymatic scouring and bleaching process, between this two processes comparison and also observation its effects on whiteness of fabric, dyeing also impact on environment. It is also observe that the 3 gL -1 hydrogen peroxide and 2 gL -1 sodium hydroxide give the good result on fabric whiteness with low environmental impact. Different pre-treated sample of cotton fabric dyed with reactive dye. The result obtain from dyed samples the combine pre-treatment by enzymatic scouring and bleaching gives good alternative of alkaline scouring bleaching process. Since it produce low BOD, COD and TOC impact on ecological factor. Furthermore it is also added advantages that it produces same whiteness and lower hydrolysation of dyestuff and good exhaustion.

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A review of QSAR for dye affinity for cellulose fibres

Cited by 65 publications

References 54 publications

An Alternative Use of Olive Pomace as a Wide-Ranging Bioremediation Strategy to Adsorb and Recover Disperse Orange and Disperse Red Industrial Dyes from Wastewater

An Alternative Use of Olive Pomace as a Wide-Ranging Bioremediation Strategy to Adsorb and Recover Disperse Orange and Disperse Red Industrial Dyes from Wastewater

Dyeing

A Study on the Effects of Pre-treatment in Dyeing Properties of Cotton Fabric and Impact on the Environment

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