Simultaneous Fixation of Wrinkle-Free Finish and Reactive Dye on Cotton Using Response Surface Methodology

2017 ◽  
Vol 36 (2) ◽  
pp. 119-132 ◽  
Author(s):  
Sharjeel Abid ◽  
Tanveer Hussain ◽  
Ahsan Nazir ◽  
Zulfiqar Ali Raza ◽  
Amna Siddique ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Cost Effectiveness ◽  
Response Surface ◽  
Developing Country ◽  
Reactive Dye ◽  
Cotton Fabrics ◽  
Cross Linking ◽  
Color Fastness ◽  
Color Strength ◽  
Recovery Angle

In printing and resin finishing of cotton fabrics, the curing step is involved twice, firstly for fixation of reactive dye and secondly for the fixation of resin for proper cross-linking. In developing country like Pakistan, where cotton is a major portion of textile exports, the elimination of one fixation stage is economical and advantageous. This study dealt with the simultaneous fixation of wrinkle-free finish (resin) and reactive dye printing for cost effectiveness. The processed route of treatment imparted a maximum dry crease recovery angle of 230° and color strength up to 89.89%. The produced fabrics were characterized using crocking fastness (dry and wet), color strength sum %, color fastness to laundry, crease recovery angle, and wrinkle recovery by appearance method. Response surface optimizer gave good composite desirability value (0.08300) with color strength % of up to 73.73 and dry crease recovery angle up to 218°.

scholarly journals The Dyeing Procedures Evaluation of Wool Fibers withPrangos ferulaceaand Fastness Characteristics

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Hossein Barani ◽  
Shahdokht Rahimpour
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Fastness Properties ◽  
Color Strength ◽  
Wool Fibers ◽  
Plasma Pretreatment

In this study, the dyeing procedure of wool fibers withPrangos ferulaceawas evaluated and optimized by response surface methodology (RSM). Using this method, the quantitive relationship between dye concentration ofPrangos ferulacea, mordant concentration, dyeing temperature, and dyeing time on the dyeing procedure was investigated. The effect of these variables as well as plasma pretreatment was examined on the color strength of dyed samples. Finally, the fastness characteristic of dye sampled at proposed optimized condition was reported. The obtained results indicate that the presence of mordant improved the fastness properties and dyes uptake of wool fibers.

scholarly journals Cellulase Pretreatment on Mercerized Cotton to Enhance X-Linking, Self-cleaning, and Antibacterial Properties Using Nano TiO2/CA/BTCA: Statistical Approaches

2013 ◽  
Vol 8 (4) ◽  
pp. 155892501300800
Author(s):  
Ali Nazari ◽  
Majid Montazer ◽  
Navid Nasirizadeh ◽  
Behnam Namiranian
Keyword(s):  
Antibacterial Properties ◽  
Cotton Fabrics ◽  
Cross Linking ◽  
Gram Negative Bacteria ◽  
Nano Tio2 ◽  
Self Cleaning ◽  
Pre Treatment ◽  
Escherichia Coli Bacteria ◽  
Recovery Angle ◽  
Fabric Surface

In this study, cellulase pre-treated mercerized cotton (EMC) fabrics were treated with citric acid (CA), butane tetra carboxylic acid (BTCA) and nano TiO2 (NTO) to produce fabric with enhanced cross-linking, self-cleaning, and antibacterial properties. However treatment of EMC fabrics with NTO/CA/BTCA has not been reported. The NTO particles were stabilized on the cotton surface using CA/BTCA cross-linking agents. In order to create optimum dry crease recovery angle (DCRA), self-cleaning based on (ΔE*) and bacteria reduction against Gram-positive and Gram-negative bacteria, the appropriate models were obtained based on Design of Expert software. The roles of CA, BTCA and NTO concentrations in cross-linking, self-cleaning, and antibacterial properties of the EMC fabric were investigated using response surface methodology (RSM). Overall, the cellulase pre-treatment of the mercerized cotton fabrics improved the antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria, and also enhanced DCRA and self-cleaning properties significantly as compared with control samples. Also, reflectance spectra analyses (200–400 nm) and Scanning Electron Microscopy (SEM) were employed to confirm the NTO particles on the EMC fabric surface.

Decolorization of reactive dye Remazol Brilliant Blue R by zirconium oxychloride as a novel coagulant: optimization through response surface methodology

2018 ◽  
Vol 78 (2) ◽  
pp. 379-389 ◽  
Author(s):  
Sonalika Sonal ◽  
Astha Singh ◽  
Brijesh Kumar Mishra
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Oxygen Demand ◽  
Zirconium Oxychloride ◽  
Reactive Dye ◽  
Cod Removal ◽  
Interactive Effects ◽  
Data Set ◽  
Operational Variables ◽  
The Individual

Abstract The aim of the present study was to investigate the performance of a novel coagulant, i.e. ZrOCl2, for the removal of anthraquinone-based reactive dye from aqueous solution. An ideal experimental setup was designed based on central composite design using response surface methodology to determine the individual and interactive effects of different operational variables (i.e. pH, coagulant dose and dye concentration) on treatment performance in terms of dye and chemical oxygen demand (COD) removal efficiencies. Total 92.58% dye and 85.33% COD removal were experimentally attained at optimized conditions at low coagulant dose, i.e. 156.67 mg/L for the dye concentration of 105.67 mg/L at pH 2. To validate the working pH of the metal coagulant, the static charge of ZrOCl2 was measured using Eh value. The performance of the coagulant was validated with experimental and predicted values in the selected data set, and R2 values for both responses were found to be 0.99 and 0.95 respectively, which shows the reliability of the experimental design. Further, the toxicity of the coagulant was assessed and no such toxicity was found even up to the concentration of 500 mg/L, proclaiming the disposal of sludge may not exhibit any threat to humans. Experimental results suggested that the ZrOCl2 could be used as an eco-friendly coagulant for dye wastewater treatment.

Optimization of steaming, drying, and tempering pretreatments for improving shelling of extra-large cashew nuts

2019 ◽  
Vol 234 (2) ◽  
pp. 384-393
Author(s):  
Son Doan Tran ◽  
Tra Thu Thi Tran ◽  
Minh Cong Tong ◽  
Naoki Uchiyama
Keyword(s):  
Experimental Data ◽  
Response Surface Methodology ◽  
Cost Effectiveness ◽  
Response Surface ◽  
Polynomial Model ◽  
Optimal Conditions ◽  
Treatment Conditions ◽  
Pre Treatment ◽  
Tempering Process

In this research, the response surface methodology with a polynomial model was used to represent the experimental data of the combination of steaming, drying, and tempering process for extra-large cashew nuts. The desired values of pre-treatment conditions minimize the broken kernel percentage and maximize the shelling capacity to achieve cost effectiveness. In the this study, the steaming, drying, and tempering conditions were optimized for the minimization of the broken kernel percentage and the maximization of the shelling capacity of extra-large cashew nuts (bigger than 32 mm). The optimal conditions were steaming temperature at 100 ℃ for 38 min, then drying at 70 ℃ for 30 min, and finally tempering for 4 h. Under these conditions, the minimal broken kernel and maximal shelling capacity achieved were 2.45 ± 0.24% and 14.58 ± 0.35 kg/h, respectively.

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