scholarly journals The study on the power of monofunctional reactive dyes: The influence of the ionic strength solution on coloring of cotton fabric

2021 ◽  
Vol 69 (4) ◽  
pp. 63-71
Author(s):  
Nebojša Ristić ◽  
Aleksandra Mičić ◽  
Ivanka Ristić ◽  
Anđela Jovanović
Keyword(s):  
Ionic Strength ◽  
Cotton Fabric ◽  
Reactive Dyes ◽  
Cellulose Fibers ◽  
Alkaline Electrolyte ◽  
Neutral Salt ◽  
Color Intensity ◽  
Alkali Salt ◽  
Promotional Effect ◽  
Minimal Consumption

Reactive dyes are the most popular dyes for dyeing cellulose fibers. The low affinity of dyes on cotton determines the presence of large amounts of electrolytes and additional substances in the dyeing bath. In recent years, methods for increased use of dyes with minimal consumption of chemicals and natural resources have been popular. The number of ions formed by the dissociation of electrolytes determines the ionic strength of the solution and has a promotional effect on exhaustion and fixation of reactive dyes. In this work, the influence of neutral salts (NaCl and Na2SO4) and alkali salt (Na2CO3) on the color intensity of cotton fabric by reactive dyes has been investigated. A bath with a higher ionic strength of neutral salt has a greater exhaustion of reactive dyes. The addition of an alkaline electrolyte to activate the chemical dye/fiber reaction has an additional promotional effect on the exhaustion of reactive dyes.

Synthesis and Dyeing Properties of Bifunctional Reactive Dyes via 4-(4-Phenyl)-1, 3-Thiazol-2-Amine and 4-(4-bromophenyl)-1, 3-Thiazol –2-Amine on Cotton Fabric

2012 ◽  
Vol 3 (1) ◽  
pp. 1-7 ◽  
Author(s):  
A.I. Ezeribe ◽  
K.A. Bello ◽  
H.M. Adamu ◽  
C.J. Chukwu ◽  
D.A. Boryo ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyes ◽  
Dyeing Properties

Application of Multifunctional Reactive Dyes on the Cotton Fabric and Conditions Optimization by Response Surface Methodology

2020 ◽  
pp. 1-13
Author(s):  
Umme Habibah Siddiqua ◽  
Shaukat Ali ◽  
Tanveer Hussain ◽  
Munawar Iqbal ◽  
Nasir Masood ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Cotton Fabric ◽  
Reactive Dyes

Degradation of Reactive Red K-2G by a Photoassisted Fenton Reaction Using a Novel Loading Phthalocyanine Sulfonic Iron Fibers as a Catalyst

2011 ◽  
Vol 175-176 ◽  
pp. 712-716
Author(s):  
Hai Ning Lv ◽  
Li Ping Xu ◽  
Cheng Qian
Keyword(s):  
Fenton Reaction ◽  
Ph Value ◽  
Dye Degradation ◽  
Reactive Dyes ◽  
Cellulose Fibers ◽  
Catalyst Loading ◽  
Solution Ph ◽  
Catalyst Dosage ◽  
Silk Fabrics ◽  
Modified Cellulose

Reactive dyes have been widely used in the dyeing of bright colourful silk fabrics. The discoloration and degradation of Reactive Red K-2G in waste water were discussed in this paper. A new heterogeneous photocatalyst named loading phthalocyanine sulfonic iron fibers (FePcS-F) was prepared by phthalocyanine sulfonic Iron supported by modified cellulose fibers in acidic condition. The photocatalytic degradation of Reactive Red K-2G was characterized by discoloration rate to evaluate the effect of catalyst dosage, catalyst loading (CFePcS-F) and solution pH. The results proved that increasing catalyst dosage and CFePcS-F significantly accelerated the dye degradation. FePcS-F catalyst showed higher photocatalytic activity when the solution’s pH value is equal to or less than 6.0, compared to alkaline medium.

Printing properties of the red reactive dyes with different number sulfonate groups on cotton fabric

2014 ◽  
Vol 101 ◽  
pp. 666-670 ◽  
Author(s):  
Kongliang Xie ◽  
Aiqin Gao ◽  
Min Li ◽  
Xiao Wang
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyes

Simultaneous dyeing and functional finishing of cotton fabric using reactive dyes doped with TiO2nano-sol

2015 ◽  
Vol 107 (5) ◽  
pp. 625-635 ◽  
Author(s):  
Omer Kamal Alebeid ◽  
Tao Zhao
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyes

Effect of solution pH, ionic strength, and temperature on adsorption behavior of reactive dyes on activated carbon

2008 ◽  
Vol 77 (1) ◽  
pp. 16-23 ◽  
Author(s):  
Y ALDEGS ◽  
M ELBARGHOUTHI ◽  
A ELSHEIKH ◽  
G WALKER
Keyword(s):  
Activated Carbon ◽  
Ionic Strength ◽  
Reactive Dyes ◽  
Adsorption Behavior ◽  
Solution Ph

The Effects of Chitosan on Dyeing Abilities of Cotton Fabric Dyed with Reactive Dyes

2013 ◽  
Vol 310 ◽  
pp. 13-15 ◽  
Author(s):  
Xiao Xia He ◽  
Sen Liu ◽  
Zhu Jun Li
Keyword(s):  
Surface Modification ◽  
Cotton Fabric ◽  
Reactive Dyes ◽  
Color Yield

To enhance dyeing ability of cotton fabric, the cotton fabric was modified with chitosan. The effects of chitosan modification on dyeing abilities, such as exhaustion, dye fixation and color yield (K/S)) were studied. The results show that: (1) Chitosan surface modification is of benefit in the increase of dye exhaustion, rising by 3.1% at least (2) The dye fixation of cotton fabric can be improved by surface modification with chitosan, increasing by over 4.2% (3) The K/S value of modified cotton fabric is much higher than that of unmodified fabric, greater by above 18.9%. (4) It can also be obtained that the optimal dyeing temperature should be 50 °C for chitosan modified cotton fabric.

scholarly journals Effects of reductive stripping of reactive dyes on the quality of cotton fabric

2015 ◽  
Vol 2 (1) ◽  
Author(s):  
Mohammad Gias Uddin ◽  
Md. Mazedul Islam ◽  
Md. Rashedul Islam
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyes ◽  
Reductive Stripping

Adsorption Study of Reactive Dyes on Cotton Fabric in Non-Aqueous Systems

2012 ◽  
Vol 550-553 ◽  
pp. 671-675 ◽  
Author(s):  
Shi Xiong Yi ◽  
Yong Chun Dong
Keyword(s):  
Adsorption Capacity ◽  
Cotton Fabric ◽  
Reverse Micelle ◽  
Adsorption Property ◽  
Reactive Dyes ◽  
Reactive Dye ◽  
Water Soluble ◽  
Ionic Surfactant ◽  
Isotherm Equation ◽  
Langmuir Isotherm Equation

Abstract: The non-ionic reverse micelles used for dyeing cotton fabric were prepared with a non-ionic surfactant Triton X-100 (TX-100) by injecting small amount of reactive dye aqueous solution. The effect of electrolyte on the adsorption capacity of reactive dyes onto cotton fabric in this system was studied. And the adsorption properties of three water-soluble anionic azo dyes including Reactive Blue 222, Reactive Red 195 and Reactive Yellow 145 onto cotton fabric in TX-100 reverse micelle were also studied and compared. The results indicated that reactive dyes showed a better adsorption property on cotton fabric in TX-100 reverse micelle without the addition of NaCl. The adsorption of the dyes onto cotton showed better agreement with Langmuir isotherm equation. Reactive Yellow 145 with lower negative charge and higher hydrophilicity exhibited the higher adsorption capacity than the other dyes. The adsorption process follows by the chemical adsorption.

Eco-friendly cationic modification of cotton fabrics for improving utilization of reactive dyes

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 45654-45661 ◽  
Author(s):  
Long Fang ◽  
Xiaodong Zhang ◽  
Jinhai Ma ◽  
Deshuai Sun ◽  
Botao Zhang ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyes ◽  
Cotton Fabrics ◽  
Cationic Polymer ◽  
Cationic Modification

The cotton fabric was modified by the eco-friendly cationic polymer. The modified cotton fabric could be dyed with reactive dyes without salt. This investigation provided a feasible and eco-friendly way to realize salt-free dyeing of reactive dyes.

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