Synthesis and microbial studies of N-phenyl-2-(4-phenyl-thiazol-2-ylamino)-acetamide based disperse dyes and their dyeing performance on polyester fiber

2013 ◽  
Vol 14 (6) ◽  
pp. 904-908
Author(s):  
S. K. Zadafiya ◽  
G. M. Malik
Keyword(s):  
Polyester Fiber ◽  
Disperse Dyes ◽  
Dyeing Performance

Synthesis and Dyeing Performance of N,N-Bis(2-cyanoethyl)-m-methylaniline Disperse Dyes

2012 ◽  
Vol 550-553 ◽  
pp. 21-26
Author(s):  
Wei Liu ◽  
Ying Zhao ◽  
Ze Hua Yu ◽  
Xiao Qiao Wan ◽  
Wen Lan Li
Keyword(s):  
Aromatic Amines ◽  
Polyester Fiber ◽  
Heterocyclic Aromatic Amines ◽  
Disperse Dyes ◽  
Light Fastness ◽  
Dyeing Performance ◽  
Wide Range ◽  
Azo Disperse Dyes

Four di-cyanoethyl azo disperse dyes based on N,N-bis(2-cyanoethyl)-m-methylaniline were synthesized using four different heterocyclic aromatic amines as the diazo components. They were characterized by UV-Vis, IR, 1HNMR, MS and EA. The dyeing performance of these dyes were assessed on polyester, fir powder, and acetylated fir powder. On polyester, the results showed that the maxinum absorption of four heterocyclic azo disperse dyes were from 414 nm to 599 nm(acetone), they were also found to show a wide range of colour shades followed as yellow, bright crimson, bulish violet and blue shades, the dyed fibers also presented good light fastness and excellent fastness to wash. Simultaneously, the dyeing performance of the dyes were also assessed on acetylated fir powder and they were found to give the similar color shades comparing with the dyeing on polyester fiber.

Energy Level and Chemical Class of Disperse Dyes—Plausible Characteristics of Level Dyeing Performance

2021 ◽  
Vol 8 (4) ◽  
pp. 15-19
Author(s):  
Salima Sultana Shimo ◽  
Md. Zulhash Uddin
Keyword(s):  
Energy Level ◽  
Low Energy ◽  
Disperse Dyes ◽  
Disperse Dye ◽  
Migration Process ◽  
Migration Index ◽  
Dyeing Performance ◽  
Fabric Surface ◽  
Chemical Class

The level dyeing index (LDI) is a measure of dye performance influenced by the dye migration process, ensuring the maximum uniformity of dye redistribution onto the fabric surface. The current study evaluates the level dyeing performance on polyester according to the energy level (low and high) and chemical classes (azo and anthraquinone based) of the three disperse dyes studied. The best levelness was obtained using C.I. Disperse Red 73 (an azo-based, low-energy level disperse dye), which exhibited the highest migration index (MI%) value. LDI results were obtained from the ratio of the exhaustion at the critical dyeing temperature (ECDT% and the final exhaustion Ef%), and the migration index (MI%). Each dye's LDI can be used to determine the compatibility of disperse dyes for combination dyeing.

Synthesis of azo disperse dyes containing pyridine ring for dyeing polyester and polyacrylic fibres

2016 ◽  
Vol 45 (1) ◽  
pp. 10-17 ◽  
Author(s):  
A.A. Fadda ◽  
N.S. Abbas
Keyword(s):  
Pyridine Ring ◽  
Cycloaddition Reaction ◽  
Disperse Dyes ◽  
Ethyl Vinyl Ether ◽  
Spectroscopic Techniques ◽  
Ethyl Vinyl ◽  
Content Type ◽  
Dyeing Performance ◽  
Azo Disperse Dyes ◽  
Derivatives Of

Purpose – The purpose of this paper is to discuss the synthesis of new azo disperse dyes containing pyridine ring for dyeing acetate polyester and other fibres. Design/methodology/approach – Cycloaddition reaction of 3-formylchromone (Compound 1) with ethyl vinyl ether (Compound 2) afforded 3-ethoxy-4,4a-dihyro-3H,10H-pyrano[4,3-b]chromen-10-one (Compound 3). Reaction of 3 with aqueous ammonium sulphite in ethanol furnishes 3-(2-hydroxybenzoyl)pyridine (Compound 5). Compound 5 was fully characterised by spectroscopic techniques. Ten arylazo derivatives of Compound 6 have been prepared for use as dyestuffs. The effect of the nature and orientation of substituents in the diazonium component on the colour of azo dyes is discussed. Dyeing performance of the dyes on different fibres has also been assessed. Findings – Most of the dyes showed good affinity to polyester fibres. On the other hand, polyacrylic fibres were only stained to weak shades. Originality/value – No details regarding the synthesis and dyeing performance of such dyes are reported before in the literature.

scholarly journals Synthesis, characterization and dyeing performance of new bisazo–bisazomethine disperse dyes

2013 ◽  
Vol 17 (2) ◽  
pp. 203-209 ◽  
Author(s):  
Dinesh M. Patel ◽  
Tarosh S. Patel ◽  
Bharat C. Dixit
Keyword(s):  
Disperse Dyes ◽  
Dyeing Performance

Study of the Pretreatment and Disperse Dyeing Process for the PLA/cotton Blended Fabric: High Physical Resistance and Dyeing Performance

2012 ◽  
Vol 627 ◽  
pp. 233-238 ◽  
Author(s):  
Hao Fei Huang ◽  
Yuan Yuan Qu ◽  
Zhong Jun Fu ◽  
Yun Fei Sun
Keyword(s):  
Disperse Dyes ◽  
The Novel ◽  
Tear Strength ◽  
Dyeing Performance ◽  
Dyeing Process ◽  
Dyeing Parameters ◽  
Decrement Rate ◽  
Bending Length ◽  
Physical Resistance

In this paper, the optimal pretreatment and disperse dyeing process for the novel PLA/cotton blended fabric was studied. In the pretreatment stage, enzyme and H2O2 were applied to test their effect on the decrement-rate and bending length. After pretreatment, the PLA component of this fabric was dyed with three different disperse dyes and the effect of dyeing parameters including time, temperature and pH on the K/S value and tear strength were studied. Besides, DSC and SEM were also applied to analyze this pretreatment and dyeing process. The recommended pretreatment and disperse dyeing conditions were summarized.

scholarly journals Disperse Dyes Based on Thiazole, Their Dyeing Application on Polyester Fiber and Their Antimicrobial Activity

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
S. K. Zadafiya ◽  
J. H. Tailor ◽  
G. M. Malik
Keyword(s):  
Antimicrobial Activity ◽  
Elemental Analysis ◽  
Polyester Fiber ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Antibacterial And Antifungal Activities ◽  
Aryl Amines ◽  
Azo Disperse Dyes ◽  
Antibacterial And Antifungal

Various diazotized aryl amines were coupled with N-(4-nitrophenyl)-2-[(4-phenyl-1,3-thiazol-2-yl)amino]acetamide to give the corresponding various azo disperse dyes (D1-D13). These dyes were applied to polyester fiber by HTHP method and their fastness properties were evaluated. Dyes were characterized by IR, elemental analysis, and NMR spectral studies. These dyes showed very good antibacterial and antifungal activities.

scholarly journals Review on Intermolecular Forces between Dyes Used for Polyester Dyeing and Polyester Fiber

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Asnake Ketema ◽  
Amare Worku
Keyword(s):  
Terephthalic Acid ◽  
Van Der Waals ◽  
Intermolecular Forces ◽  
Polyester Fabric ◽  
Polyester Fiber ◽  
Disperse Dyes ◽  
Oh Groups ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Polyester Dyeing

Polyester fiber is a manufactured fiber composed of synthetic linear macromolecules in the chain at least 85% by mass of an ester of diol and benzene-1, 4-dicarboxylic acid (terephthalic acid). Fibers of the most common polyester, poly(ethylene terephthalate) (PET or PET), are generally made from either terephthalic acid or dimethyl terephthalate together with ethylene glycol. Dyeing of polyester fabric with disperse dyes, polyester requires the use of dispersing agents. The chemical characteristics and general application conditions of disperse dyes are characterized by the absence of solubilizing groups and low molecular weight. Dye particles have a size ranging from 0.5 to 2.0 microns, generally contain –NH2, substituted –NH2, or –OH groups in the structure, and get attached with the fiber through H-bond and van der Waals force. Dyes are retained by the fiber by physical forces. Fastness properties are very high in polyester except in certain cases. The dye-fiber (PET) affinity is the result of different types of interactions, such as hydrogen bonds, dipole-dipole interactions, and van der Waals forces.

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