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Effect of steaming temperature (a) and time (b) on K/S of polyester prints  

Effect of steaming temperature (a) and time (b) on K/S of polyester prints  

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Article
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A nanoparticle size disperse dye treated with ultrasound has been applied on polyester fabric without using a carrier. Various dyeing and process parameters used are studied in detail, such as K/S values, dye particle size, dye exposure to ultrasound waves, printing paste pH, steaming conditions of prints, morphological study using SEM and TEM of d...

Citations

... ZnO belongs to a group of metal oxides that are characterized by their photo-catalytic and photooxidizing ability against chemical and Biological species [16][17][18]. Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3]. ...
... ZnO belongs to a group of metal oxides that are characterized by their photo-catalytic and photooxidizing ability against chemical and Biological species [16][17][18]. Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3]. Copper doped zinc oxide has photo catalytic and photoluminescence properties [3]. ...
Article
The molal solubility for nano zinc oxide (ZnO) , copper (2%) doped ZnO , Fe(2%) doped ZnO , Ti(2%) doped ZnO , Ag (25) doped ZnO in 50%DMF and 50% DMSO, (v/v), volume to volume were measured at 293.15, 303.15 , 313.15, 323.15K. The thermodynamic parameters, Gibbs free energy of solvation, enthalpies and entropies of solvation were evaluated for nano zinc oxide and nano zinc oxide doped from the solubility measurements. These thermodynamic parameters explain the effect of doping elements on the thermodynamic behviours of nano zinc oxide in solvation process. Contribution/ Originality This paper uses the thermodynamic parameters for discussing the solubility behaviour because few studies is finding for nano particles solvation explanation.
... From Fig. 3a, it is confirmed that the interaction between the cycle control and amplitude is significant. The combination of cycle control and amplitude will produce shear waves that cause high speed liquid jets, which is capable of breaking the bond between the particles in the sol-gel product [71,72]. ...
Article
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Magnesium oxide (MgO) nanoparticles are one of the highly significant compounds in construction. The novelty con- concentrated on using sol–gel technique coupled with ultrasonication for synthesis of MgO nanoparticles to prevent the agglomeration and its effect on the size was investigated. The synthesized samples were characterized by TGA, DSC, XRD, FTIR, SEM, EDX mapping, DLS, and HRTEM. Antimicrobial and antibiofilm activities of MgO nanoparticles were investigated against multi-drug-resistant microbes causing-urinary tract infection (UTI). TGA, XRD, and FTIR characterization were used to identify the calcination temperature, characterization peaks, and functional groups of MgO nanoparticles, respectively. DLS technique confirmed the particle size distribution which found to be 21.04 nm. HRTEM and SEM/EDX mapping showed that MgO nanoparticles are pure, spherical and the average particle size is 19.2 nm. MgO nanoparticles showed a promising antimicrobial effect against all UTI-causing pathogens. It showed a prominent antimicrobial capability against Staphylococcus aureus, Escherichia coli and Candida albicans by 19.3 mm, 16.1 mm and 15.2 mm ZOI, respectively. Additionally, they showed improved biofilm inhibition as 95.65%, 84.23%, and 76.85% against C. albicans, E. coli and S. aureus, respectively. Therefore, due to these outstanding properties, this study could give insights for solving serious industrial, pharmaceutical and medical challenges throughout the utilization of new nanoparticle-based approach.
... Dispersant amount is necessary for dispersed dyeing because it imposes a negative charge on dye to improve its aqueous solubility and inhibits the formation of dye cluster through repulsion among negatively charged dye molecules. The more the dispersant amount, the more the even dyeing -but an over amount causes unevenness and aggregation in cluster on fabric surface to make the dyeing process dull [15][16][17]. The results given in Fig. 4 show that UV radiation has reduced the amount of dispersant. ...
Article
A uniform and eco-friendly heating source, ultraviolet radiation has auspiciously improved the disperse dyeing of polyester fabrics. For our current study we used disperse yellow 211 (DY 211) to dye polyester fabric under the influence of ultraviolet treatment. Both the fabric and dye solution were UV-treated for 15-60 min and dyed under variable conditions. We found that ultraviolet-treated polyester (RP) for 30 min. gives good color strength and darker shades at 70ºC using 70 mL of un-irradiated dye solution (NRS) of pH 8 in the presence of 2% of dispersant. While for the dye bath of pH 11, irradiated polyester (RP) for 45 min. using 90 mL irradiated dye solution (RS) gives good color strength and darker shades at 100°C in the presence of 1% of dispersant. ISO standards for fastness revealed good-to-excellent ratings for different shades dyed under optimal conditions. Ultraviolet treatment not only reduced the time, labor, and money, but also improved color characteristics.
... The wide spreading of Disperse dyes has a good impact in the field of textile industry while the discovery of synthetic fabrics especially polyester fabric. Disperse dyes are a kind of dyes which have impossibility to solve in water and these make their affinity for hydrophobic fabric such as cellulose acetate, nylon, polyester [1]. The particles of disperse dyes appear in suspension states in the water bath in the presence of dispersing agent [2]. ...
... ZnO belongs to a group of metal oxides that are characterized by their photo-catalytic and photooxidizing ability against chemical and Biological species [16][17][18]. Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3]. ...
... ZnO belongs to a group of metal oxides that are characterized by their photo-catalytic and photooxidizing ability against chemical and Biological species [16][17][18]. Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3]. Copper doped zinc oxide has photo catalytic and photoluminescence properties [3]. ...
... Furthermore, a polyester fabric printed with an ultrasound treated nano-sized disperse dye improved the color depth of print without addition of extra chemicals to the printing paste [47]. ...
Article
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The chemical and physical effects of ultrasound with a frequency above 16kHz, higher than the audible frequency of the human ear, have proven to be a useful tool for variety of systems ranging from the application of ultrasound in environmental remediation to the cooperation of ultrasound waves with chemical processing regarding as sonochemistry. Ultrasound opened up new advances in textile wet processing including desizing, scouring, bleaching, dyeing, printing and finishing and also nanoprocessing including nanopretreatment, nanodyeing, nanoprinting and nanofinishing. Use of ultrasound appears to be a promising alternative technique to reduce energy, chemicals and time involved in various operations. Over the past years there has been an enormous effort on using sonochemistry for the synthesis of nanomaterials on various textile materials. In situ sonosynthesis of nanoparticles and nanocomposites on different textiles is a pioneering approach driving future investigations. With such wide range of applications and vast ever increasing publications, the objective of this paper is presenting a comprehensive review on ultrasound application in textile from early time to now by the main emphasis on the sonosynthesis of nanomaterials outlining directions toward future research.
... ZnO belongs to a group of metal oxides that are characterized by their photo-catalytic and photo- oxidizing ability against chemical and Biological species [16][17][18]. Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3]. ...
... ZnO belongs to a group of metal oxides that are characterized by their photo-catalytic and photo- oxidizing ability against chemical and Biological species [16][17][18]. Therefore, ZnO was recognized for its utility in biological applications as an antibacterial material [2,7,8,18,19] Metal doped ZnO has pharmathotical importance as its show antibacterial activities against microorganisms such staphylococcus and bacillus [3]. Copper doped zinc oxide has photo catalytic and photoluminescence properties [3]. ...
Article
The molal solubility for nano zinc oxide (ZnO) , copper (2%) doped ZnO , Fe(2%) doped ZnO , Ti(2%) doped ZnO , Ag (25) doped ZnO in 50%DMF and 50% DMSO, (v/v), volume to volume were measured at 293.15, 303.15 , 313.15, 323.15K .The thermodynamic parameters, Gibbs free energy of solvation, enthalpies and entropies of solvation were evaluated for nano zinc oxide and nano zinc oxide doped from the solubility measurements. These thermodynamic parameters explain the effect of doping elements on the thermodynamic behviours of nano zinc oxide in solvation process.
Chapter
During cavitation, nucleation, growth, and subsequent collapse of microbubbles in a liquid medium result in the generation of high temperature and pressure locally at millions of locations within, and in the immediate vicinity of the collapsing cavity in the sonochemical reactor. These effects have been effectively utilized to promote and intensify various physicochemical transformations in numerous applications in chemical synthesis via reducing the reaction time, increasing the reaction yield, switching of the reaction pathways, and initiation of the chemical reactions due to the formation of reactive free radicals. This chapter highlights various applications and future trends of the cavitation phenomenon involving intensification of various unit operations and processes in water and wastewater, biotechnology, material science, food and beverage, petroleum, textile processing, and other allied industries. For each of the applications, improvement demonstrated by ultrasound and ultrasonic cavitation over the conventional method is presented. The typical challenges in each of these segments are also presented.
Article
The aim of this paper was to reveal the relationship between the interaction energy of benzodifuranone dyes and dyeing performance indices such as dyeing temperature and colour fastness. Dimer models of benzene–benzene, benzodifuranone–benzene, and benzodifuranone–benzodifuranone configuration were set up, and geometry optimisation and interaction energy were calculated using a density functional theory ωB97XD, 6-311G++ (d, p) basis set. The calculation results showed that the benzodifuranone molecule had better coplanarity. The molecular interaction energy of benzene–benzene, benzodifuranone–benzene, and benzodifuranone–benzodifuranone rings decreased at first, and then increased with growth in the distance between the rings, the lowest energy occurring at a distance of about 3.25–3.75 Å. The dispersion force affected the interaction energy of benzodifuranone–benzene rings most, while both dispersion force and electrostatic force influenced the interaction energy of benzodifuranone–benzodifuranone rings. These calculation and experimental results revealed that a greater energy was needed to destroy the dye–fibre and dye–dye interaction energy of benzodifuranone-based disperse dyes.
Chapter
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The chapter critically surveys the recent development trends in nanotextile finishes. Garments for special needs comprising of the functional aspects such as protective, medical treatment and care, have been considered through treatment with silver nanoparticles and have been related to sustainability. The micro- and nanoencapsulation of 100 % cotton denim fabric using three herbal extracts have been studied for antimicrobial efficiency, resulting in improvement in durability and good resistance to microbes over 30 industrial washes. The synthesis, characterization, and application of nanochitosan on cotton fabric has been studied, and the treated fabrics were evaluated for appearance, tensile, absorbency, stiffness, dyeing behaviour, wrinkle recovery, and antibacterial properties. Polyester fabric has been treated with nanosized dispersed dye particles without carrier, using ultrasound. This has been used for optimizing the parameters for the preparation of the printing paste. Attempt has been made to improve the handle property of jute polyester-blended yarn to produce union fabric with cotton yarn, intended for winter garment. The findings indicate that nano–micropolysiloxane-based finishing exhibit better improvement in the surface morphology, handling, and recovery property of the fabric as compared with other finishing combinations. Viscose fabrics have been modified to improve the attraction for metal oxides such as aluminium, zinc, or titanium in order to impart antimicrobial activity against two types of microorganisms. Nanosafe textile using the extracts of yellow papaya peel has been developed by extracellular synthesis of highly stable silver nanoparticles. Cotton fabrics with smart properties have been developed by functional finishing with stimuli-responsive nanogel using a combination of biopolymer and synthetic polymer in the synthesis of nanogel. The findings reveal that the application of nanogel as a smart finishing system affects the intrinsic cotton properties and also improves the common textile quality by providing new features of stimuli responsiveness. Above all these, the newer concepts of the nanotextile finishes discussed in the chapter promise enhancement in the existing properties of textile materials, increase durability, promote ecofriendliness and economy, and thus pave the way towards achieving better sustainability.