scholarly journals Synthesis of monoazo disperse dyes, their dyeing performance on polyester fibers and antimicrobial activity

2014 ◽  
Vol 7 (10) ◽  
pp. 08-13 ◽  
Author(s):  
Sandip K. Patel ◽  
◽  
Pratixa K. Patel ◽  
G. M Malik
Keyword(s):  
Antimicrobial Activity ◽  
Disperse Dyes ◽  
Dyeing Performance ◽  
Polyester Fibers ◽  
Monoazo Disperse Dyes

scholarly journals Efficient and Convenient Route for the Synthesis of Some New Antipyrinyl Monoazo Dyes: Application to Polyester Fibers and Biological Evaluation

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Ahmed A. Fadda ◽  
Khaled M. Elattar
Keyword(s):  
Azo Dye ◽  
Biological Evaluation ◽  
Disperse Dyes ◽  
Cytotoxic Activities ◽  
Elemental Analyses ◽  
Polyester Fibers ◽  
Good Penetration ◽  
Convenient Route ◽  
Monoazo Disperse Dyes ◽  
Monoazo Dyes

Nine variously substituted azo dye derivatives2–10of antipyrine were prepared. The effects of the nature and orientation of the substituents on the color and dyeing properties of these dyes for polyester fibers were evaluated. The newly synthesized compounds were characterized on the basis of elemental analyses and spectral data. On the other hand, the investigated dyes were applied to polyester fabrics and showed good light, washing, heat, and acid perspiration fastness. The remarkable degree of brightness after washings is indicative of the good penetration and the excellent affinity of these dyes for the fabric. The results in general revealed the efficiency of the prepared compounds as new monoazo disperse dyes. The newly synthesized compounds were screened for their antioxidant and cytotoxic activity against Vitamin C and 5-fluorouracil, respectively. The data showed clearly that most of the compounds exhibited good antioxidant and cytotoxic activities.

scholarly journals Synthesis of monoazo disperse dyes based on 2-aminoheterocycles and their dyeing performance on nylon fabrics

2000 ◽  
Vol 65 (11) ◽  
pp. 773-780 ◽  
Author(s):  
Hari Maradiya ◽  
Vithal Patel
Keyword(s):  
Absorption Spectra ◽  
Elemental Analysis ◽  
Disperse Dyes ◽  
Visible Absorption ◽  
Dyeing Performance ◽  
Nylon Fabric ◽  
Wide Range ◽  
Rf Values ◽  
Monoazo Disperse Dyes ◽  
Dyed Fabric

Novel monoazo disperse dyes based on various 2-aminoheterocycles were prepared using N-methyl-N-(2-hydroxyethyl)aniline as the coupling component. All the dyes were applied as disperse dyes on nylon fabric. These dyes have been found to give a wide range of colour shades with very good depth, brightness and levelness on nylon fabric. The visible absorption spectra, elemental analysis and Rf values were investigated. The percentage dye bath exhaustion on fabric was found to be very good. The dyed fabric showed very good to excellent fastness to light, washing, rubbing and perspiration. The sublimation fastness was found to be excellent.

scholarly journals Surface Modification of Polyester Fabrics by Ozone and Its Effect on Coloration Using Disperse Dyes

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3492
Author(s):  
Rafaela Stefanie Gabardo ◽  
Dayane Samara de Carvalho Cotre ◽  
Manuel José Lis Arias ◽  
Murilo Pereira Moisés ◽  
Bruna Thaisa Martins Ferreira ◽  
...  
Keyword(s):  
Ozone Treatment ◽  
Disperse Dyes ◽  
Ionic Character ◽  
Color Analysis ◽  
Polyester Fabrics ◽  
Dyeing Performance ◽  
Polyester Fibers ◽  
Modified Surface ◽  
Sem Imaging ◽  
Pre Treatment

Polyester fibers (PES) are the most consumed textile fibers due to their low water absorption; non-ionic character and high crystallinity. However, due to their chemical structure, the chemical interactions between polyester, finishing products, and dyes are quite challenging. We report on the use of ozone to modify the surface of polyester fibers with the goal of improving the interaction of the modified surface with finishing compounds and dyes. We used C.I. Disperse Yellow 211 to dye ozone-treated polyester fabrics and evaluated the effects of ozone treatment using FTIR-ATR, Raman spectroscopy, SEM imaging, rubbing tests, and capillarity measurements. We evaluated the dyeing performance via color analysis, and determined the dyeing kinetics. Experimental results indicate that the modification of polyester fabrics with ozone is a feasible pre-treatment that improves dyeing efficiency allowing better solidity of color and a decrease in the amount of dye required.

scholarly journals Monoazo disperse dyes based on 2-amino-1,3,4-thiadiazole derivatives

2002 ◽  
Vol 67 (11) ◽  
pp. 709-718 ◽  
Author(s):  
Harir Maradiya
Keyword(s):  
Spectral Properties ◽  
Visible Range ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Light Fastness ◽  
Dyeing Performance ◽  
Brown Colour ◽  
Nylon Fabric ◽  
Monoazo Disperse Dyes ◽  
Dyed Fabric

A series of monoazo disperse dyes based on 2-amino-5-mercapto-1,3,4-thiadiazole was prepared by coupling with various N-arylmaleimides. The dyeing performance of these dyes was assessed on nylon fabric. The dyes were found to give yellow to brown colour shades on dyeing with good depth and levelness on nylon fabric. The dyebath exhaustion fixation and fastness properties of the dyes were also determined. The dyed fabric showed moderate to good light fastness and very good to excellent fastness to washing, rubbing, perspiration and sublimation. The IR and visible range spectral properties of the dyes were also determined.

scholarly journals Synthesis and dyeing performance of some amphiphilic naphthalimide azo disperse dyes on polyester fabrics

2020 ◽  
Vol 85 (10) ◽  
pp. 1253-1264
Author(s):  
Umar Ameuru ◽  
Mohammed Yakubu ◽  
Kasali Bello ◽  
Peter Nkeonye ◽  
Azim Halimehjani
Keyword(s):  
Absorption Spectra ◽  
Electronic Absorption Spectra ◽  
Polyester Fabric ◽  
Disperse Dyes ◽  
Light Fastness ◽  
Visible Absorption ◽  
Polyester Fabrics ◽  
Dyeing Performance ◽  
Azo Disperse Dyes ◽  
Monoazo Disperse Dyes

A series of monoazo disperse dyes were synthesized by coupling diazotized 4-amino-N-dodecyl-1,8-naphthalimide with N,N-dialkyl anilines and naphthol derivatives. The synthesized intermediates and the dyes were characterized using FTIR, 1H-NMR, 13C-NMR, mass spectroscopy and elemental analysis (CHN). Visible absorption spectra of the dyes were examined in solvents of different polarities. The electronic absorption spectra cover a wavelength (?max) range of 515-535 nm in DMF at uniformly absorption intensity between 1.59-3.00?104 L mol-1 cm-1. The dyes gave deep and bright intense hues of light violet, maroon, pink and neon red on polyester fabrics. The dyes generally showed good washing and perspiration rating but poor to moderate light fastness properties on woven polyester fabric and could be recommended for commercial outlets.

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.

Photofading of monoazo disperse dyes on polyester and polyamide substrates

2000 ◽  
Vol 45 (2) ◽  
pp. 109-123 ◽  
Author(s):  
Kiyoshi Himeno ◽  
Yasuyo Okada ◽  
Zenzo Morita
Keyword(s):  
Disperse Dyes ◽  
Monoazo Disperse Dyes
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