Optimization of the polyester fabric dyeing process using coumarin as a green carrier

The present study aims to evaluate the application of coumarin as a green carrier alternative for dyeing of polyester fabrics, as well as to optimize key dyeing parameters in order to obtain greater color strength (K/S) at lower temperatures than 130°C using single azo class dispersed dye. For this purpose, a full-factorial design was used to study the influence of the single and interactive effects of four factors involved in the dyeing process, namely, pH, temperature, and coumarin and dye concentrations. The chosen technique was a 24-factorial, one-center point, and three replicates at the center point resulting on a response surface, which has shown an increase of the color strength of five times at 90°C, and of three times at 100°C when compared to dyeing at the same temperatures without the use of a carrier. In addition, excellent fastness to washing and to rubbing were obtained.

Download Full-text

Supercritical CO2 Extraction of Plumula nelumbinis Oil Rich in γ-Sitosterol Using Response Surface Methodology

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.864-867.213 ◽

2013 ◽

Vol 864-867 ◽

pp. 213-216

Author(s):

Dong Dong Jia ◽

Rong Lan ◽

Yong Yue Sun

Keyword(s):

Response Surface Methodology ◽

Factorial Design ◽

Response Surface ◽

Surface Analysis ◽

Full Factorial Design ◽

Response Surface Analysis ◽

Optimal Conditions ◽

Full Factorial

Supercritical CO2extraction ofPlumula nelumbinisoil rich in γ-sitosterol was investigated with a 42full factorial design and response surface analysis. At optimal conditions (P=35 MPa,T=55 C,dp=0.22 mm,Q=2.0 L/min), the yield of the extracted oil was up to 12.2%, in which the concentration of γ-sitosterol was 7.38%, indicating that the γ-sitosterol contents inPlumula nelumbinisand its oil were much higher than that in other vegetables.

Download Full-text

Optimization of promethazine theoclate fast dissolving tablet using pore forming technology by 3-factor, 3-level response surface-full factorial design

Archives of Pharmacal Research ◽

10.1007/s12272-010-0810-4 ◽

2010 ◽

Vol 33 (8) ◽

pp. 1199-1207 ◽

Cited By ~ 3

Author(s):

Shailesh Sharma ◽

Neelam Sharma ◽

Ghanshyam Das Gupta

Keyword(s):

Factorial Design ◽

Response Surface ◽

Full Factorial Design ◽

Forming Technology ◽

Full Factorial

Download Full-text

Optimization of pyrocatechol violet biosorption by Robinia pseudoacacia leaf powder using response surface methodology: kinetic, isotherm and thermodynamic studies

Journal of Water Reuse and Desalination ◽

10.2166/wrd.2015.054 ◽

2015 ◽

Vol 6 (2) ◽

pp. 333-344 ◽

Cited By ~ 1

Author(s):

Neda Khorshidi ◽

Ali Niazi

Keyword(s):

Response Surface Methodology ◽

Factorial Design ◽

Response Surface ◽

Robinia Pseudoacacia ◽

Freundlich Isotherm ◽

Second Order ◽

Full Factorial Design ◽

Order Kinetic ◽

Pyrocatechol Violet ◽

Full Factorial

We have investigated the biosorption of pyrocatechol violet (PCV) from aqueous solutions by Robinia pseudoacacia tree leaves as a low-cost and eco-friendly biosorbent. A full factorial design was performed for screening the main variables and their interactions, which reduces the large total number of experiments. Results of the full factorial design (24) based on an analysis of variance (ANOVA) demonstrated that the initial PCV concentration, contact time, pH and temperature are statistically significant. Box-Behnken design, a response surface methodology, was used for further optimization of these selected factors. The ANOVA and some statistical tests such as lack-of-fit and coefficient of determination (R2) showed good fit of the experimental data to the second-order polynomial model. The Langmuir and Freundlich isotherm models were used to describe the equilibrium isotherms. Equilibrium data fitted well with the Freundlich isotherm model (R2 > 0.97). In addition, thermodynamic parameters (ΔG°, ΔH° and ΔS°) were calculated, these parameters show that the biosorption process was spontaneous (ΔG° = −2.423) and exothermic (ΔH° = −9.67). The biosorption kinetic data were fitted with the pseudo-second-order kinetic model (R2 > 0.999). These results confirm that R. pseudoacacia leaves have good potential for removal of PCV from aqueous solution.

Download Full-text

Optimisation of ultrasound-assisted extraction conditions for maximal recovery of active monacolins and removal of toxic citrinin from red yeast rice by a full factorial design coupled with response surface methodology

Food Chemistry ◽

10.1016/j.foodchem.2014.08.080 ◽

2015 ◽

Vol 170 ◽

pp. 186-192 ◽

Cited By ~ 38

Author(s):

Guisheng Zhou ◽

Lei Fu ◽

Xiaobo Li

Keyword(s):

Response Surface Methodology ◽

Factorial Design ◽

Response Surface ◽

Full Factorial Design ◽

Red Yeast Rice ◽

Ultrasound Assisted Extraction ◽

Red Yeast ◽

Assisted Extraction ◽

Ultrasound Assisted ◽

Full Factorial

Download Full-text

Application of two-level full factorial design and response surface methodology in the optimization of inductively coupled plasma-optical emission spectrometry (ICPOES) instrumental parameters for the determination of platinum

Journal of Geology and Mining Research ◽

10.5897/jgmr2017.0278 ◽

2017 ◽

Vol 9 (5) ◽

pp. 43-53

Author(s):

Mapfumo Raison ◽

Fungayi Zaranyika Mark

Keyword(s):

Response Surface Methodology ◽

Factorial Design ◽

Response Surface ◽

Inductively Coupled Plasma ◽

Optical Emission ◽

Emission Spectrometry ◽

Inductively Coupled ◽

Plasma Optical Emission Spectrometry ◽

Full Factorial

Download Full-text

Nano TiO2 Imparting Multifunctional Performance on Dyed Polyester Fabrics with some Disperse Dyes Using High Temperature Dyeing as an Environmentally Benign Method

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17041377 ◽

2020 ◽

Vol 17 (4) ◽

pp. 1377 ◽

Cited By ~ 2

Author(s):

Alya M. Al-Etaibi ◽

Morsy Ahmed El-Apasery

Keyword(s):

High Temperature ◽

Low Temperature ◽

Value Added ◽

Polyester Fabric ◽

Disperse Dyes ◽

Blue Dye ◽

Color Strength ◽

Polyester Fabrics ◽

Self Cleaning ◽

Dyeing Method

Polyester fabrics were dyed with prepared disperse dyes using the high temperature dyeing method. The dye exhaustion of the dye baths were compared to the low-temperature dyeing method in an attempt to study the proportion of the dye effluent solution that affects the environment. The dye uptake of the high temperature dyeing method (HT) of polyester fabric was compared with low temperature dyeing, hence (HT) increased the color strength of the investigated dyes by 309 and 265%. This means that the amount of dye present in the dye effluents by using the high-temperature dyeing method is almost non-existent, and this is reflected positively on the environment as these wastes pollute the environment. Post-treated polyester fabric was prepared through a two-step hot process after being immersed in a solution of Titanium (IV) oxide nanoparticle sizeTiO2 NPs (21 nm primary particle size) at 80 °C followed by curing at 140 °C. The treated fabric realized an optimum UV protection factor of 34.9 and 283.6 degrees. These fabrics also demonstrated a strong ability to improve the light fastness properties. Finally, the potential applications of such value-added fabrics as self-cleaning and antifungal activities were investigated. The results indicated that the treated dyed fabrics with TiO2 NPs endowed fabrics with the excellent self-cleaning of methylene blue dye. From the above, the treated fabrics with nano-titanium dioxide can be used in some promising fields, for example, medical ones.

Download Full-text

Application of one-quarter fractional and full factorial design to study set mark phenomenon of multifilament polyester fabrics

Fibers and Polymers ◽

10.1007/s12221-014-0373-y ◽

2014 ◽

Vol 15 (2) ◽

pp. 373-381

Author(s):

Mohsen Shanbeh ◽

Fatemeh Ataee ◽

Abbas Tabibi ◽

Sedigheh Khanmohammadi

Keyword(s):

Factorial Design ◽

Full Factorial Design ◽

Polyester Fabrics ◽

Full Factorial

Download Full-text

Sustainable Dyeing of Microwave Treated Polyester Fabric using Disperse Yellow 211 Dye

Journal of the Mexican Chemical Society ◽

10.29356/jmcs.v62i1.580 ◽

2018 ◽

Vol 62 (1) ◽

Cited By ~ 4

Author(s):

Shahid Adeel ◽

Samreen Gul Khan ◽

Sania Shahid ◽

Muhammad Saeed ◽

Shumaila Kiran ◽

...

Keyword(s):

Microwave Treatment ◽

Polyester Fabric ◽

Disperse Dye ◽

Color Strength ◽

Iso Standard ◽

Standard Methods ◽

Dyeing Performance ◽

Dyeing Parameters ◽

Ultraviolet Treatment ◽

Temperature Time

The aim of current work is to evaluate the dyeing performance of newly introduced disperse dye to improve its dyeing behavior onto polyester fabric using microwave radiation. Microwave heating has promisingly improved the disperse dyeing of polyester fabrics. Disperse Yellow 211 (DY 211) has been used to dye the polyester fabric under the influence of microwave treatment. Both the fabric and dye solution, were treated with the microwaves for 1- 6 min. Different dyeing parameters such as temperature, time, dispersant and dye bath volume were also optimized and ISO standard methods for colorfastness were employed to rate the influence of microwave and ultraviolet treatment on disperse dyeing. It is found that microwave treated polyester (RP, 6 min), has given good color strength and darker shades upon dyeing at 90°C for 40 min. in the presence of 2 g/100ml of dispersant using 70 mL of irradiated dye solution (RS, 6 min) of pH 8. Similarly using dye bath of pH 11, microwave treated polyester (RP, 6 min.) has given good color strength and darker shades upon dyeing at 70°C for 35 min.in the presence of 1 g/100ml of dispersant. using 50 mL of irradiated dye solution (RS). ISO standards for fastness to light, washing and rubbing revealed that good to excellent ratings have been obtained from different shades dyed at optimal condition. It is inferred that Microwave treatment has not only reduced the dyeing conditions but also improved the color characteristics of dyed polyester fabric.

Download Full-text

Thermodynamic and kinetic parameters of polyester dyeing with Disperse Blue 56 using bio-based auxiliaries and co-solvent microemulsion

Textile Research Journal ◽

10.1177/0040517519871264 ◽

2019 ◽

Vol 90 (5-6) ◽

pp. 523-536

Author(s):

Shahram Radei ◽

Francisco Javier Carrión-Fité ◽

Mònica Ardanuy ◽

José María Canal

Keyword(s):

Polyester Fabric ◽

Low Molecular Weight ◽

Microemulsion System ◽

Color Strength ◽

Dyeing Process ◽

Activated State ◽

Kinetic Rates ◽

Dye Absorption ◽

Polyester Dyeing ◽

And Diffusion

The aim of the study was to dye polyester fabric with a low molecular weight anthraquinone type disperse dye (C.I. Disperse Blue 56), with n-butylacetate as co-solvent in the microemulsion system and the presence of two bio-based auxiliaries (ortho-vanillin and coumarin), at temperatures lower than 100℃. In order to investigate the influence of temperature and auxiliaries on the kinetic dyeing process, the energy of the activation was determined by the kinetic rates constants. The activated entropy values were obtained by the theory of absolute rates of dyeing and diffusion of the activated state of the dye for the disorder state of the dyeing system. Higher activated energies were found, as well as higher activated entropy, meaning higher dye absorption, for polyester samples dyed with ortho-vanillin/n-butylacetate compared with polyester samples dyed with coumarin/n-butylacetate. Color strength values of the polyester fabric dyed using the proposed microemulsion dyeing system at low temperature (95℃) were similar to polyester fabric dyed with a conventional dyeing system at high temperature (135℃). Regarding color fastness to washing and ironing, it was found that the use of the auxiliaries did not significantly modify the fastness values of the dyed samples.

Download Full-text