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Relevant bibliographies by topics / Azo disperse dyes diazotization coupling fastness properties

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Academic literature on the topic 'Azo disperse dyes diazotization coupling fastness properties'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Azo disperse dyes diazotization coupling fastness properties"

1

Hassan, Khalid, El-khabiry Shaban, Ghada M. ElHaddad, Asmaa B. Sallam, and Ibrahim El Sayed. "Synthesis, characterization, and antibacterial activity of azodyes incorporated acridine chromophore and their applications in polyester printing." Current Chemistry Letters 11, no. 1 (2022): 83–94. http://dx.doi.org/10.5267/j.ccl.2021.9.002.

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A series of azo dyes incorporated acridine chromophore labelled as 8 (a-d), 10 (a, b), 12 and 14 were prepared in very good yields starting from 9-chloroacridine 1 followed by amination, diazotization and coupling either with rhodanine analogues 6 (a, b) or other coupling partners 9 (a, b), 11 and 13. FT-IR, 1H NMR, and mass spectroscopic analysis were used to establish the structures of the produced azo dispersed dyes. Moreover, the synthesized azo dyes were used to prepare pastes that were used to print polyester fabric using classic silk-screen printing techniques. The dyes were tested for

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2

Mohamed, Fatma A., A. A. Mousa, R. Farouk, Y. A. Youssef, Y. A. Youssef, and Y. A. Youssef. "Union Dyeing of Wool/Polyester Blend Fabric Using Sulphatoethylsulphone Dye Derivative of C.I. Disperse Yellow 23." Research Journal of Textile and Apparel 19, no. 2 (2015): 26–33. http://dx.doi.org/10.1108/rjta-19-02-2015-b004.

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This paper aims to synthesise, characterise and find out the properties of a model dye for convenient union dyeing of wool, polyester and wool/polyester blend fabric compared with C.I. Disperse Yellow 23. The reactive disperse dye was prepared containing sulphatoethylsulphone (SES) as a reactive group. The dye was synthesised by diazotization and coupling reaction. Firstly, we synthesized azo dye intermediate I using 1-aminobenzene-4-sulphatoethylsulphone diazotized and then coupled it with aniline. The synthesized azo dye intermediate I was diazotized and coupled with phenol to give dye 2. Di

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3

Anita, Gour*1 Shirin Imam2 &. Niharika Shivhare3. "ANALYSIS AND PREPARATION OF AZO DISPERSE DYE C25H21N5O5." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 4, no. 12 (2017): 129–32. https://doi.org/10.5281/zenodo.1133322.

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Disperse Dyes are aromatic heterocyclic organic compound. Advances over the last decade concerning the synthesis, properties and application of azo disperse dyes prepared from diazo components containing aromatic heterocycles are discussed here. Preparation of some novel disperse azo dyes synthesized by the coupling component of diazonium salt 1-(4-Aminophenyl)- 4 -(4-methoxy-3-methylphenyl)-5-((4-nitrophenylhydrazono)-2, 6-(1H)-Pyridinedione (29A)1to give the corresponding various azo disperse dyes (A-E). these dyes were applied to polyster fabric and their fastness properties were evaluated.

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4

Abdel-Megeed, Mohamed F., Mohamed M. Azaam, and Gamal A. El-Hiti. "Diphenyl (4′-(Aryldiazenyl)biphenyl-4-ylamino)(pyridin-3-yl)methylphosphonates as Azo Disperse Dyes for Dyeing Polyester Fabrics." Journal of Chemistry 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/308419.

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Diphenyl (4′-aminobiphenyl-4-ylamino)(pyridin-3-yl)methylphosphonate(1)was synthesized in 88% yield from reaction of pyridine-3-carboxaldehyde with benzidine and triphenylphosphite in the presence of titanium tetrachloride as a catalyst. Diazotization of1gave the corresponding diazonium salt2which was coupled with several hydroxyl or amino compounds to give the corresponding azo dyes3–8in 82–88% yields after crystallization. The dyes produced were applied to polyesters as disperse dyes and their fastness properties were elevated.

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5

Mijin, Dusan, Gordana Uscumlic, Natasa Valentic, and Aleksandar Marinkovic. "Synthesis of azo pyridone dyes." Chemical Industry 65, no. 5 (2011): 517–32. http://dx.doi.org/10.2298/hemind110428037m.

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Over 50% of all colorants which are used nowdays are azo dyes and pigments, and among them arylazo pyridone dyes (and pigments) have became of interest in last several decades due to the high molar extinction coefficient, and the medium to high light and wet fastness properties. They find application generally as disperse dyes. The importance of disperse dyes increased in the 1970s and 1980s due to the use of polyester and nylon as the main synthetic fibers. Also, disperse dyes were used rapidly since 1970 in inks for the heat-transfer printing of polyester. The main synthetic route for the pr

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6

Cheng, Yu-Wen, Jean-Sebastien Benas, Fang-Cheng Liang, et al. "Red Disperse Azo Dye Side Chains Influence on Polyethylene Terephthalate Dyeing Performances in Supercritical Carbon Dioxide Media." Polymers 14, no. 24 (2022): 5487. http://dx.doi.org/10.3390/polym14245487.

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Supercritical carbon dioxide dyeing (SDD) as a dyeing media not only provides a friendly dyeing environment but also significantly increases polymeric dyeing performances ascribed to strong azo dye affinity. Disperse azo dyes have shown to be highly efficient dyeing agents due to their facile coupling synthesis, side chains position, and length tunability to optimize absorption properties. Herein, we first synthesize two series of disperse red azo dyes via a coupling chemical route. Further, we investigate the position of the electron withdrawing group and alkyl chains length impact onto the a

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7

Abu-Melha, Sraa. "Synthesis of novel biologically active thiazole dyes and their applications." Pigment & Resin Technology 48, no. 5 (2019): 375–82. http://dx.doi.org/10.1108/prt-09-2018-0102.

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Purpose This study aims to focus on the possibility of developing new thiazole azo dyes with good colouristic application properties, biological and pharmacological activities. Design/methodology/approach Coupling of curcumin with different aromatic diazonium salts of 2-amino thiazole derivatives, such as 2-aminobenzothiazole, 2-amino-5-phenylthiazole, 2-amino-5-methylthiazole and 2-amino-5-nitrothiazole-produced novel azo dyes. Structures of all synthesised dyes were fully confirmed via spectroscopic and analytical methods. Those compounds were examined for their antimicrobial, anticancer and

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8

Otutu, O. J., and A. K. Asiagwu. "Synthesis and Application to Polyester and Nylon 6 Fabrics of Hetaryl Bis-Azo Disperse Dyes Based on 6-Amino-2,4-Dihydroxypyrimidine and 4-Methoxy-2-Nitroaniline Moieties." Journal of Scientific Research 11, no. 2 (2019): 215–24. http://dx.doi.org/10.3329/jsr.v11i2.38734.

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Six new bis-azo disperse dyes were synthesized by linking various aryl amino and hydroxyl derivatives to 4-methoxy-2-nitroaniline and 6-amino-2,4-dihydroxypyrimidine moieties through diazo coupling reactions. The structures of the bis-azo dyes were identified by Fourier transform infrared, proton and carbon 13 nuclear magnetic resonance data. The prepared dyestuffs were applied onto polyester and nylon 6 fabrics and subsequently their fastness properties in terms of light, washing, sublimation and rubbing were determined. Compared with the light fastness of polyester fabrics, the light fastnes

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9

Abomelha, Hanna. "Synthesis of novel dyes based on thiophene analogues with antibacterial activity for dyeing polyester fabrics." Pigment & Resin Technology 48, no. 4 (2019): 337–47. http://dx.doi.org/10.1108/prt-02-2018-0012.

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Purpose This study aims to the synthesis of some novel 4-arylazo-3-hydroxythiophene analogues containing sulphapyridine and sulphathiazole dyestuffs and studying their application in dyeing polyester fabrics and rendering their antibacterial efficacy. Design/methodology/approach Simultaneous dyeing and antibacterial finishing for polyester fabric using a new antibacterial disperse dye having a modified chemical structure to thiophene dyes were studied. Construction of the thiophene dyes was carried out by diazo-coupling of diazotized sulphonamide-containing heterocyclic rings sulphapyridine an

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10

Gaffer, Hatem, Mounir Salem, and Magda Marzouk. "Synthesis of 4-hydroxy coumarin dyes and their applications." Pigment & Resin Technology 45, no. 5 (2016): 320–29. http://dx.doi.org/10.1108/prt-09-2014-0071.

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Purpose The present study aims to focus on the possibility of developing new eco-friendly azo dyes with good colouristic application properties, exhibiting biological and pharmacological activities. Design/methodology/approach Coupling of 4-hydroxycoumarin with a variety of aromatic diazonium salts of 2-aminothiazole, 2-aminobenzothiazole, 4-aminoantipyrine, 4-aminoacetophenone, adenine sulphate, a-naphthylamine and sulphadimidine to produce novel azo dyes. The compounds were fully characterised using spectroscopic and analytical methods. All of the compounds were tested for their antimicrobia

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