scholarly journals Octane-Assisted Reverse Micellar Dyeing of Cotton with Reactive Dyes

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 678 ◽  
Author(s):  
Alan Tang ◽  
Cheng-hao Lee ◽  
Yanming Wang ◽  
Chi-wai Kan
Keyword(s):  
Reactive Dyes ◽  
Reverse Micellar

scholarly journals A Computer Color-Matching Study of Reverse Micellar Dyeing of Wool with Reactive Dyes

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 132
Author(s):  
Yanming Wang ◽  
Yiu-lun Tang ◽  
Cheng-hao Lee ◽  
Chi-Wai Kan
Keyword(s):  
Ethylene Glycol ◽  
Reactive Dyes ◽  
Color Matching ◽  
Poly Ethylene Glycol ◽  
Wool Fabrics ◽  
Calibration Curves ◽  
Color Yield ◽  
Water Based ◽  
Poly Ethylene ◽  
Reverse Micellar

Computer color-matching (CCM) and the levelness of poly(ethylene glycol)-based reverse-micellar dyed wool fabrics in octane and nonane were investigated and compared with a conventional water-based dyeing system. Reflectance curves and calibration curves exhibited no chromatic change and maintained high linearity in both dyeing systems. The linearity of water-dyed calibration curves was slightly higher than that of the reverse-micellar dyed curves. The color yield, in term of K/Ssum values, of solvent-dyed samples was found to be generally higher than that of water-based dyed samples at various calibrated dye concentrations. The concentrations predicted by CCM were close to the theoretical concentrations for both dyeing methods. This indicates that octane- and nonane-assisted reverse-micellar dyeing of wool is able to generate color recipes comparable to the conventional water-based dyeing system. The solvent-dyed samples, measured by the relative unlevelness indices (RUI), exhibit good-to-excellent levelness, which is highly comparable with the water-dyed samples.

scholarly journals Reverse Micellar Dyeing of Cotton Fiber with Reactive Dyes: A Study of the Effect of Water pH and Hardness

ACS Omega ◽  
2019 ◽  
Vol 4 (7) ◽  
pp. 11808-11814 ◽  
Author(s):  
Alan Yiu Lun Tang ◽  
Cheng Hao Lee ◽  
Yan Ming Wang ◽  
Chi Wai Kan
Keyword(s):  
Cotton Fiber ◽  
Reactive Dyes ◽  
Effect Of Water ◽  
Water Ph ◽  
Reverse Micellar

A study of PEG-based reverse micellar dyeing of cotton fabric: reactive dyes with different reactive groups

Cellulose ◽  
2019 ◽  
Vol 26 (6) ◽  
pp. 4159-4173 ◽  
Author(s):  
Alan Y. L. Tang ◽  
C. H. Lee ◽  
Y. M. Wang ◽  
C. W. Kan
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyes ◽  
Reactive Groups ◽  
Reverse Micellar

Reverse Micellar Dyeing of Wool Fabric with Reactive Dyes

2019 ◽  
Vol 20 (11) ◽  
pp. 2367-2375
Author(s):  
Yanming Wang ◽  
Yiu-lun Tang ◽  
Cheng-hao Lee ◽  
Chi-wai Kan
Keyword(s):  
Reactive Dyes ◽  
Wool Fabric ◽  
Reverse Micellar

Dyeing cotton with reactive dyes: a comparison between conventional water-based and solvent-assisted PEG-based reverse micellar dyeing systems

Cellulose ◽  
2018 ◽  
Vol 26 (2) ◽  
pp. 1399-1408 ◽  
Author(s):  
Alan Y. L. Tang ◽  
C. H. Lee ◽  
Y. M. Wang ◽  
C. W. Kan
Keyword(s):  
Reactive Dyes ◽  
Water Based ◽  
Reverse Micellar

DECOLORIZING OF REACTIVE DYES WASTEWATER VIA DOWN-FLOW HANGING SPONGE (DHS) SYSTEM

2017 ◽  
Vol 16 (1) ◽  
pp. 39-46
Author(s):  
Ahmed Tawfik ◽  
Dina Zaki ◽  
Magdy Zahran
Keyword(s):  
Reactive Dyes

Photocatalytic Discolouration of Solutions of Reactive Dyes in the Presence of H2O2

1995 ◽  
Vol 30 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Deng Nansheng ◽  
Tian Shizhong ◽  
Xia Mei
Keyword(s):  
Photochemical Reaction ◽  
Uv Light ◽  
Reactive Dyes ◽  
Solar Light ◽  
Rate Equations ◽  
Oh Radical ◽  
Test Results ◽  
Dye Molecules ◽  
First Order ◽  
Dye Solutions

Abstract Tests for the photocatalytic degradation of solutions of three reactive dyes, Red M-5B, Procion Blue MX-R and Procion Black H-N, in the presence of H2O2 were carried out. When the solutions of the three reactive dyes were irradiated by UV or solar light, the colour of the solutions disappeared gradually. A statistical analysis of the test results indicated a linear relation between the concentration of dyes and the time of irradiation. The discolouration reaction of the solutions was of the first order. Rate equations for the discolouration reactions of dye solutions were developed. The dark reactions or the dye solutions containing H2O2 were very slow, illustrating that the photochemical reaction played a very important role. It was demonstrated that UV light and solar light (300 to 380 nm) photolyzes the HO and that the resulting OH radical reacts with the dye molecules and destroys the chromophore.

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