Dyeing of Polyester/Cotton Blends with Encapsulated Disperse/Reactive Dyes for a One-Bath Auxiliary-Free Process

2012 ◽  
Vol 441 ◽  
pp. 61-65
Author(s):  
Chun Li Meng ◽  
Yan Wei Wang ◽  
Ji Liang Cao
Keyword(s):  
Reactive Dyes ◽  
Disperse Dyes ◽  
Environment Protection ◽  
Dyeing Process ◽  
Free Process ◽  
One Bath Dyeing ◽  
Suitable Modification

Research onthe one-bath dyeing process of encapsulated disperse dyes and reactive dyes on polyester/cotton blends showed that through the suitable modification before dyeing, polyester/cotton blends could be dyed with encapsulated disperse/reactive dyes in an auxiliary-free, one-bath method. The dyed goods attained excellent levelness and fastness. The residual dye in the final baths were very low. Thus, cleaner dyeing production and environment protection can be realized.

Study on One-Bath Dyeing Technology and its Application for Disperse/Reactive Dyes on Polyester/Viscose Blended Fabrics

2012 ◽  
Vol 441 ◽  
pp. 116-121
Author(s):  
Guang Ming Wang ◽  
Lan Zhou ◽  
Jun Li Chen ◽  
Guang Jie Cheng ◽  
Zhong Fa Hu
Keyword(s):  
Acetic Acid ◽  
Reactive Dyes ◽  
Disperse Dyes ◽  
Buffer System ◽  
Color Strength ◽  
Key Technology ◽  
Dyeing Process ◽  
Traditional Process ◽  
One Bath Dyeing ◽  
The One

In order to shorten dyeing process, increase yield and reduce consumption of water and alkaline, the one-bath two-stage heating dyeing process was used for reactive/disperse dyes. The key technology of this research was adding alkaline when polyester/viscose (cotton) blended fabrics were dyed by reactive dyes,and then adding acetic acid when dyed by disperse dyes. During this process, acetic acid and alkali neutralize, and sodium acetate and acetic acid form a buffer system, which greatly improves dyeing reproducibility. The results of factory trial showed that color strength and color fastness of polyester/viscose (cotton) blended fabrics dyed by this process were as same as those achieved by the traditional process.

Investigation of Cotton Dyeing with Enzyme-Oxygen-Pretreatment/Reactive Dyes in one-Bath

2011 ◽  
Vol 233-235 ◽  
pp. 903-908
Author(s):  
Jun Hua Wang ◽  
Jian Feng Di ◽  
Yong Tang Jia
Keyword(s):  
High Efficiency ◽  
Reactive Dyes ◽  
Cotton Fabrics ◽  
Optimum Conditions ◽  
Dyeing Process ◽  
Low Energy Consumption ◽  
One Bath Dyeing ◽  
The One ◽  
Red Dye ◽  
Short Time

Desizing-scouring-bleaching-dyeing of cotton fabrics in one-bath was discussed in this paper. The appropriate reactive dyes, refined enzyme and H2O2 elimination agent and dyeing technology parameters were selected preciously and the optimum conditions were obtained: H2O2 (30%) 4 g/L, refined enzyme 2 g/L, Na2SiO3 2g/L, Peregal O 1 g/L, bath ratio 1:20, scoring and bleaching at 95°C for 45min. Then, adding sulfourea 12g/L, controlling pH 7, adding reactive red dye 3BS 3% in raffinate, dyeing at 35°C for 30min and fixing at 70°C for 30 min. Compared the one-bath process with the traditional one, the former can get similar performance on dyeing. In addition, the former shows such advantages as short time, high efficiency, low energy consumption and reduced sewage emission. “One-bath” dyeing process is a promising approach to replace the old one.

A novel functional disperse dye doped with graphene oxide for improving antistatic properties of polyester fabric using one-bath dyeing method

2019 ◽  
Vol 90 (5-6) ◽  
pp. 655-665 ◽  
Author(s):  
Lihua Fan ◽  
Yongsong Tan ◽  
Jeremiah Amesimeku ◽  
Yunjie Yin ◽  
Chaoxia Wang
Keyword(s):  
Graphene Oxide ◽  
Polyester Fabric ◽  
Disperse Dye ◽  
Reduction Time ◽  
Dyeing Process ◽  
Functional Dyes ◽  
One Bath Dyeing ◽  
Dyeing Method ◽  
Dyed Fabric ◽  
Microscopic Morphology

A novel functional disperse dye doped with graphene oxide for antistatic properties of polyester fabric was achieved, which means that the dyeing and antistatic finishing can be simultaneously obtained by a one-bath method. Functional dyes were used to dye polyester fabric by a high-temperature, high-pressure dyeing method. The surface microscopic morphology of the dyed polyester fabric, and the dispersion properties of the disperse dye, graphene oxide, and the functional disperse dye, were characterized by scanning electron microscopy. The effects of the dyeing temperature on the particle sizes of three dyeing liquors were explored; this revealed that the temperature of the dyeing process had no effect on particle size. The dosage and reduction time of graphene oxide were investigated. The surface electrical resistance of the dyed fabric, 9.8 × 106 Ω, obtained at a condition of 2% (o.m.f) graphene oxide with a reduction time of 30 min, achieved A-grade antistatic standard. Furthermore, the rubbing and washing fastness of the treated fabric were 4- and 4 ∼ 5 grades, respectively. This preparation of the functional disperse dye provides a possibility in one-bath dyeing and antistatic finishing of polyester fabric.

scholarly journals Dyeing of Polyester with 4-Fluorosulfonylphenylazo-5-pyrazolone Disperse Dyes and Application of Environment-Friendly Aftertreatment for Their High Color Fastness

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4209 ◽  
Author(s):  
Sanghyun Yoon ◽  
Byunghun Choi ◽  
Md Morshedur Rahman ◽  
Santosh Kumar ◽  
Shekh Md Mamun Kabir ◽  
...  
Keyword(s):  
Nitro Group ◽  
Oxygen Demand ◽  
Biological Oxygen Demand ◽  
Disperse Dyes ◽  
Color Fastness ◽  
Fastness Properties ◽  
Environment Friendly ◽  
Dyeing Process ◽  
Pyrazolone Derivatives ◽  
Dyeing Effluent

Dyeing and fastness properties of a series of 4-fluorosulfonylphenylazo-5-pyrazolone dyes on polyester were investigated in this study. The 4-nitrophenylazo-5-pyrazolone dyes were also synthesized to compare their dyeing and fastness properties on polyester with those of fluorosulfonyl-substituted analogues. The substantivity of 4-arylazo-5-pyrazolone derivatives containing a p-fluorosulfonyl group in the diazo component was lower than that of their nitro analogues which have a higher extinction coefficient and higher affinity because of the polar nitro group. They showed relatively hypsochromic color and lower chroma on polyester compared with their nitro analogues because of the relatively weaker electron-accepting power of the fluorosulfonyl group compared to the nitro group. Disperse dyeing of polyester with 4-fluorosulfonylphenylazo-5-pyrazolone disperse dyes achieved high color fastness and reduces the adverse environmental impact of the dyeing process by providing the option of performing alkali clearing instead of reductive clearing, which has high biological oxygen demand when discharged into the dyeing effluent and generates carcinogenic aromatic amines.

scholarly journals The Identification of Cotton Fibers Dyed with Reactive Dyes for Forensic Purposes

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5435
Author(s):  
Daria Śmigiel-Kamińska ◽  
Jolanta Wąs-Gubała ◽  
Piotr Stepnowski ◽  
Jolanta Kumirska
Keyword(s):  
Review Paper ◽  
Reactive Dyes ◽  
Crime Scene ◽  
Morphological Features ◽  
Cotton Fibers ◽  
Disperse Dyes ◽  
Medical Sciences ◽  
Single Fibers ◽  
Polyester Fibers ◽  
Crime Scenes

Some of the most common microtraces that are currently collected at crime scenes are fragments of single fibers. The perpetrator leaves them at a crime scene or takes them away, for example, on their clothing or body. In turn, the microscopic dimensions of such traces mean that the perpetrator does not notice them and therefore usually does not take action to remove them. Cotton and polyester fibers dyed by reactive and dispersion dyes, respectively, are very popular within clothing products, and they are hidden among microtraces at the scene of a crime. In our recently published review paper, we summarized the possibilities for the identification of disperse dyes of polyester fibers for forensic purposes. In this review, we are concerned with cotton fibers dyed with reactive dyes. Cotton fibers are natural ones that cannot easily be distinguished on the basis of morphological features. Consequently, their color and consequently the dye composition are often their only characteristics. The presented methods for the identification of reactive dyes could be very interesting not only for forensic laboratories, but also for scientists working in food, cosmetics or pharmaceutical/medical sciences.

Investigation into Acceleration Efficiency of Ultrasound in Dyeing Process

2013 ◽  
Vol 734-737 ◽  
pp. 2222-2225
Author(s):  
De Shuai Sun ◽  
Long Fang ◽  
Tao Liu
Keyword(s):  
Reactive Dyes ◽  
Dyeing Wastewater ◽  
Dyeing Process ◽  
Ultrasound Energy ◽  
Remazol Red ◽  
Experimental Findings

Ultrasound energy could strengthen the adsorption of dyes on fiber. The acceleration efficiency of ultrasound was investigated by dyeing cotton with reactive dyes. The experimental findings showed the accelerative efficiency of ultrasound decreased with the prolongation of dyeing time and increment of dyeing temperature. Ultrasound exhibited a better acceleration effect in high dye concentration. The use of ultrasound reduced about 27.2% Remazol red RGB and 50.3% Remazol yellow 3RS in dyeing wastewater.

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.

One-bath dyeing of a polyester/cotton blend with reactive disperse dyes from 2-hydroxypyrid-6-one derivatives

2003 ◽  
Vol 119 (3) ◽  
pp. 134-139 ◽  
Author(s):  
J J Lee ◽  
N K Han ◽  
W J Lee ◽  
J H Choi ◽  
J P Kim
Keyword(s):  
Disperse Dyes ◽  
One Bath Dyeing

Study of Fluorescent Dyeing Process and Influence of Mixture Dyes on High-visibility

2015 ◽  
Vol 10 (1) ◽  
pp. 155892501501000
Author(s):  
Mohamed Hamdaoui ◽  
Ahlem Lanouar ◽  
Sabri Halaoua
Keyword(s):  
Fluorescent Dyes ◽  
Second Order ◽  
Disperse Dyes ◽  
Order Model ◽  
Nernst Equation ◽  
First Order ◽  
Dyeing Process ◽  
Pseudo Second Order ◽  
Polyester Dyeing ◽  
Kinetics Of

In this paper, we present the results of an investigation and analysis of an experimental study of fluorescent disperse dyes used for dyeing polyester fabrics to high-visibility colors. This paper describes the results of spectrophotometric color measurements for yellow luminous, red luminous and orange luminous fluorescent dyes and their matching with the requirements of the EN 471 standard. The results of this study showed that the adsorption isotherms of polyester dyeing with fluorescent disperse luminous dyes follow the Nernst equation; the Nernst constants were determined and interpreted. The adsorption kinetics of fluorescent disperse dyes on polyester is studied by using the peudo-first-order model, the pseudo-second-order equation and the intraparticle diffusion equation. The results show that pseudo-second-order models fit well the experimental data with higher average regression coefficients (R2 > 0.98). They also show that high-visibility is influenced by the dye concentration, and that the dye mixtures can affect the high-visibility.

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