Sustainable bulk scale cationization of cotton hosiery fabrics for salt-free reactive dyeing process

2017 ◽  
Vol 149 ◽  
pp. 1188-1199 ◽  
Author(s):  
Nallathambi Arivithamani ◽  
Venkateshwarapuram Rengaswami Giri Dev
Keyword(s):  
Reactive Dyeing ◽  
Dyeing Process ◽  
Bulk Scale

Laccase-catalyzed enzymatic dyeing of cotton fabrics

2021 ◽  
pp. 004051752110069
Author(s):  
Rıza Atav ◽  
Bürhan Buğdaycı ◽  
Ömer Bozkurt ◽  
Aylin Yıldız ◽  
Elçin Güneş ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Uv Protection ◽  
Infrared Analysis ◽  
Synthetic Dyes ◽  
Protection Factor ◽  
Knitted Fabrics ◽  
Reactive Dyeing ◽  
Dyeing Process ◽  
Laccase Enzyme ◽  
Color Reproducibility

As some synthetic dyes are regarded to be toxic, mutagenic and carcinogenic, the search for eco-friendly alternatives for the synthesis of dyes and coloration has gained importance. For this reason, this study focused on finding new eco-friendly alternatives for coloring cotton. 100% cotton knitted fabrics were subjected to enzymatic coloration using a commercial laccase enzyme and various precursors. After determining the colors, the effect of pH on the enzymatic dyeing process was investigated. Then the optimization of reaction conditions was also realized statistically for the precursors giving the best results in terms of color. With the aim of obtaining further improvements in color-yield values obtained in enzymatic dyeings, the effect of the pretreatment process and the use of ultrasound were also investigated. Furthermore, the reaction pathways in enzymatic coloration were explained and results were confirmed by means of Fourier Transformed Infrared analysis. As a result of experimental studies, red and lilac colors could be successfully obtained on cotton for the first time in the literature. In this way, the theoretical basis of enzymatic dye synthesis and dyeing of cotton was clarified comprehensively. Furthermore, technical (color reproducibility; washing, rubbing, light and perspiration-fastness values; and UV protection factor), economical (chemical, energy and water consumption required for dyeing (including aftertreatments) of 1 kg fabric) and ecological aspects of enzymatic dyeings were compared with reactive dyeing. According to the experimental results it was found that biological treatment alone was enough for wastewater of enzymatic coloring, while chemical treatment will also be needed in reactive dyeing wastewater. Furthermore, color reproducibility, evenness and UV protection properties of dyed samples were comparable with that of reactive dyeings. However, in terms of the fastness levels achieved, the enzymatic coloring was far behind the reactive dyeing.

scholarly journals Study on dyeing behavior of banana fiber with reactive dyes

2019 ◽  
Vol 14 ◽  
pp. 155892501988447
Author(s):  
Subashini Balakrishnan ◽  
GL Dharmasri Wickramasinghe ◽  
UG Samudrika Wijayapala
Keyword(s):  
Quantitative Research ◽  
Reactive Dye ◽  
Study Data ◽  
Color Measurement ◽  
Cotton Fibers ◽  
Research Strategies ◽  
Banana Fiber ◽  
Reactive Dyeing ◽  
Dyeing Process ◽  
Banana Fibers

The objective of this research paper is to establish a suitable reactive dyeing process for banana fiber and comparison between dyeing behaviors of banana fibers with cotton fibers. Ambon (Cavendish type) banana variety was selected for this research study. Data accumulation is done by quantitative research methodology and experimental research strategies for this investigation; 5% enzyme and 6% H2O2-, 2% Na2SiO3-, and 3% NaOH-treated banana fibers were dyed with reactive dye. Banana fibers were dyed with three standard colors (red, blue, and yellow) each with four different concentrations (0.25, 1%, 4%, and 6%) of reactive dye. Testing was conducted to assess the color properties between pretreated banana fiber, dyed banana fiber, and cotton fiber. Color measurement was performed by using a Datacolour 600 spectrophotometers. The ΔE* values were used to determine the degree of color deterioration. Results showed that pretreated fibers become brighter (whiteness) than the raw banana fibers. Reflectance curves of dyed banana fibers were found similar to cotton in all the experiments and confirming the dye absorption tendency is more similar to cotton. Further results indicate that the dyeing behavior of banana is similar to cotton. Therefore, cotton dyeing process can be applied for the banana fibers. Dyeing of banana fiber was carried out with a reactive type of dye, which provided better washing fastness properties than cotton fibers.

scholarly journals Simultaneous reactive dyeing and surface modification of polyamide fabric with TiO2 precursor finish using a one-step hydrothermal process

2018 ◽  
Vol 88 (22) ◽  
pp. 2611-2623 ◽  
Author(s):  
Hui Zhang ◽  
Xin Li ◽  
Baibing Han ◽  
Hailiang Wu ◽  
Ningtao Mao
Keyword(s):  
Hydrothermal Process ◽  
Reactive Dye ◽  
Tetrabutyl Titanate ◽  
Color Fastness ◽  
Hydrothermal Conditions ◽  
Reactive Dyeing ◽  
Reactive Blue 19 ◽  
Dyeing Process ◽  
Wet Scrubbing ◽  
One Step

In this article, the approach of dyeing polyamide (PA) fabric by using C.I. Reactive Blue 19 dye and simultaneously modifying it with titanium dioxide precursor under hydrothermal conditions is developed. The anthraquinone-based Reactive Blue 19 dye, which is more resistant to biodegradation owing to its fused aromatic structure compared to an azo-based one, is utilized as a model compound in this research to demonstrate the photodegradation effect of TiO2 on reactive dyes. It is shown that a layer of TiO2 nanoparticles is homogeneously coated on fiber surfaces and their particle sizes are smaller than those remaining in the residual dyeing liquors. The crystallinity and optical properties of the resultant PA fabrics are changed due to this hydrothermal dyeing process. In comparison with the dyed-only PA fabrics, the PA fabrics dyed and simultaneously modified with anatase TiO2 nanoparticles exhibit better color fastness against artificial light (xenon) while maintain similar grades of color fastness against washing with soap, wet scrubbing, dry cleaning as well as dry/wet rubbing. While changes in tensile strength, elongation and water absorbency of the resultant PA fabrics were not found, the addition of tetrabutyl titanate in the dyeing liquor is proved to facilitate the reaction of reactive dye with PA fabric and the resultant PA fabric shade. More interestingly, it is noticed that the residual dyeing liquor can be photodegraded after 50 mins of either UV or visible light irradiation, and the dyeing wastewater can thus be released in an eco-friendly manner to the environment.

scholarly journals Comparative study on natural and reactive dye for cotton coloration

2018 ◽  
Vol 16 (3) ◽  
Author(s):  
Md. Reazuddin Repon ◽  
M. Tauhidul Islam ◽  
Md. Abdullah Al Mamun ◽  
Muhammad Abdur Rashid
Keyword(s):  
Fiber Surface ◽  
Reactive Dye ◽  
Natural Dye ◽  
Synthetic Dyes ◽  
Light Fastness ◽  
Reactive Dyeing ◽  
Natural Dyeing ◽  
Dyeing Process ◽  
Textile Dyeing ◽  
Cotton Knitted Fabric

Eco-friendly textile dyeing with natural dye is a global soaring interest for avoiding environment pollution incurred by synthetic dyes. This study attempts to compare the dyeing properties of cotton knitted fabric dyed with banana floral stem (BFS) sap and reactive dye. Natural dye i.e. BFS sap was extracted from the species of Musa sapientum by roller squeezer machine. The recipe of reactive dyeing was selected to match the exact shade with the natural dyed specimens. Conformation of the dye molecule fixation onto fiber surface was assured by FTIR-ATR spectra. Comparative analysis were carried out in response of degree of color levelness, color fastness to water, washing, perspiration, rubbing, light and effluent qualities. The economic viability of natural dyeing was also estimated. The specimens dyed with BFS sap have excellent color levelness and color durability characteristic alike reactive dye except light fastness properties. Moreover, natural dyeing costs were almost half of the reactive dyeing. Finally, this inquiry forecasts a less time, energy and water consuming, economical and ecofriendly dyeing process which could be deployed as replacement of reactive dyes with a few compromises.

Utilization of Spent Coffee Ground Oil in Eco-Friendly Scouring and Reactive Dyeing Processes for Cotton

2020 ◽  
Vol 1005 ◽  
pp. 85-92
Author(s):  
Kattika Seemork ◽  
Jantip Setthayanond ◽  
Potjanart Suwanruji ◽  
Porntip Tooptompong
Keyword(s):  
Water Absorption ◽  
Chemical Compositions ◽  
Dual Phase ◽  
Textile Processing ◽  
Reactive Dyeing ◽  
Dyeing Process ◽  
Spent Coffee Ground ◽  
Coffee Ground ◽  
Color Yield ◽  
Oil Water

In this research, utilizing of Arabica spent coffee ground oil was investigated for textile processing applications including scouring and reactive dyeing for cotton. The spent coffee ground oil was extracted using hexane and its chemical compositions were analyzed. The synthesized biosurfactant from spent coffee ground oil was investigated for use in cotton scouring. The results showed that the biosurfactant could well work as a scouring agent for cotton. Much better water absorption and reduced yellowness on cotton were achieved but higher applied concentration was needed as compared with the commercial wetting agent. It was also found that scouring efficiency of the biosurfactant could be promoted by adding alkali i.e. sodium carbonate, into a scouring bath, resulting in a satisfactory scouring level. A study on utilizing spent coffee ground oil in reactive dyeing process informs that by incorporating the oil into an aqueous dyebath to create oil/water dual-phase dyeing system, the dye exhaustion and color yield of Reactive Red 120 dye obtained on cotton could be enhanced without adding salt. This promotes a development of salt-free reactive dyeing process.

scholarly journals Optimization of Salt-Free Reactive Dyeing Process for Cotton with Coconut Oil/Water Dual-Phase Dyeing System

2021 ◽  
Vol 33 (9) ◽  
pp. 2099-2104
Author(s):  
K. Seemork ◽  
J. Setthayanond ◽  
P. Suwanruji ◽  
P. Tooptompong
Keyword(s):  
Coconut Oil ◽  
Phase System ◽  
Dual Phase ◽  
Optimum Conditions ◽  
Reactive Dyeing ◽  
Dyeing Process ◽  
Phase Medium ◽  
Dye Staining ◽  
Oil Water ◽  
Reactive Orange

In this study, the coconut oil/water dual-phase dyeing system for developing salt-free reactive dyeing process for cotton was established. The selected dyes in this work were hot-dyeing reactive dyes, including C.I. Reactive Red 243, C.I. Reactive Blue 214 and C.I. Reactive Orange 70. A dual-phase dyeing system was performed under various coconut oil to water ratios and a comparative study was conducted on the conventional aqueous-based reactive dyeing in the presence and absence of salt. The results showed that the oil to water ratio of 3:1 imparted the highest colour yields (K/S values) and achieved a superior colour yield to the conventional aqueous-based dyeing. The results also pointed out that better dye fixation could be attained by dyeing cotton with the coconut oil/water dual-phase dyeing process under the optimum conditions. A comparable degree of dye exhaustion was observed for the aqueous-based and the dual-phase dyeing processes, however, the dye fixation was higher for the dual-phase dyeing, indicating less dye hydrolysis in this dyeing system. Consequently, superior colour fastnesses to washing and rubbing were obtained, less dye staining was observed in the case of dual-phase dyeing. A study on reusability of the coconut oil recovered from the spent dyebath for another reactive dyeing cycle was also conducted. The oil from the spent dyebath was directly taken to use without any further purification as a dual-phase medium along with water and the obtained result indicated a reusability potential of coconut oil. From this research, it infers that cleaner reactive dyeing process with the coconut oil/water dual-phase system for cotton could be developed.

Research of Salt-Free Dyeing of Reactive Dyes on Chitosan Quaternary Ammonium Salt Treated Bombyx mori Silk Fabric

2013 ◽  
Vol 796 ◽  
pp. 347-352
Author(s):  
Wei Zhang ◽  
You Gang Cheng ◽  
Jin Jie Zhou
Keyword(s):  
Bombyx Mori ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Water Soluble ◽  
Processing Temperature ◽  
Silk Fabric ◽  
Reactive Dyeing ◽  
Dyeing Process ◽  
Dyeing Rate

Chitosan quaternary ammonium salt (short for HTCC) was a strong cationic water-soluble polymer. The bombyx Mori silk fabric was treated by HTCC solution and the salt-free reactive dyeing process and properties of modified silk fabric were investigated in this paper. The results showed that salt-free dyeing effect of silk fabric treated with Cibacron Blue FN-G was better when HTCC concentration was 8g/L, the processing temperature was 60°C and the processing time was 35min; the optimum salt-free reactive dyeing process of silk fabric treated by HTCC was: dyeing pH was 8.0, dyeing temperature was 90°C and dyeing time was 70 min; HTCC had obviously promoted dyeing effect, after salt-free dyeing, the dyeing rate, the color fixing rate and the dyeing depth of silk fabric modified by HTCC solution were all increased obviously, and the washing fastness and rubbing fastness were both improved slightly; the smaller molecular weight of chitosan was used to modify to HTCC, the higher dyeing rate and color fixing rate of the treated silk fabric were obtained.

Partial oxidation of reactive dyestuffs and synthetic textile dye-bath by the O3 and O3/H2O2 processes

2001 ◽  
Vol 43 (2) ◽  
pp. 221-228 ◽  
Author(s):  
I. A. Balcioğlu ◽  
İ. Arslan
Keyword(s):  
Treatment Time ◽  
Textile Wastewater ◽  
Synthetic Wastewater ◽  
Textile Dye ◽  
Treatment Efficiency ◽  
Reactive Dyeing ◽  
Oxidation Rates ◽  
Ph Values ◽  
Dyeing Process ◽  
H2o2 Oxidation

Ozonation and O3/H2O2 oxidation of reactive dyestuffs and simulated textile dye-bath were investigated. Effects of reaction pH, initial dye concentration, H2O2 concentration and assisting chemicals on treatment efficiency were examined. We found considerable improvement in COD and colour removal rates at pH=11, that was almost the actual pH of the prepared textile wastewater, whereas in particular increasing the initial dyestuff concentration had an adverse effect upon oxidation rates. Removal of colour, COD and TOC were found to be fairly sensitive to the introduction of soda that is frequently applied as an auxiliary chemical during the reactive dyeing process. The addition of H2O2 had negligible effect on COD removal efficiency and decolorization rate compared to ozonation alone at different pH values. Accordingly it can be inferred that the theoretically expected effect of OH· radical scavengers (e.g. carbonate, chloride) present in the synthetic dye-bath as well as introduced radical formationpromoters (e.g. H2O22, OH–) were probably hidden due to the complexity of the synthetic wastewater matrix. Biodegradability of the ozonated dye-bath was accelerated by a factor of three corresponding to a 233% relative enhancement. The inhibition of the oxygen uptake rate decreased from 91% to 75% within only 5 min treatment time.

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