Dyeing of Wool with Marigold and Its Properties

Montazer, M.,Parvinzadeh, M. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.2

This research work involves the dyeing of wool with Marigold as a source of yellow colour. To do this, wool yarns pre-treated with Alum as a colorless mordant, dyed with Marigold and then treated with different percentages of ammonia solutions. The chromaticity co-ordinates of samples measured in CIELAB system. The $L^*$ values of all ammonia treated samples decreased and the values of $a^*$, $b^*$, $C^*$ dependant on the ammonia solution. It can also indicate that the reflectance spectrum of treated samples decreases due to ammonia treatment. The rate of vertical wicking decreases on Marigold dyed treated with ammonia. Color hue of the Marigold dyed wool alters after washing with standard soap and ammonia after-treatment has no influence on washing fastness. The samples dyed with Marigold and after-treated with ammonia show a lower light fastness.

Salt Free Reactive Dyeing of Cationized Cotton

Montazer, M.,Malek, R.M.A.,Rahimi, A. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.6

In this study 3-chloro-2-hydroxypropyltrimethylammonium chloride was used as a cationic agent to cationize cotton fabric by a pad-batch process. The cationized cotton samples were dyed with different reactive dyes containing various reactive groups. The dyeability of the cationized cotton samples with reactive dyes without salt was significantly improved due to an increase in the ionic attraction between the dye and cationized cotton. The results showed that the wash and dry rubbing fastness of the cationized cotton dyed with different reactive dyes are similar to those of the untreated cotton. However, the light fastness of some of the cationized fabric samples was improved.

Photo bleaching of wool using nano TiO2 under daylight irradiation

Majid Montazer,Somaye Morshedi 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.1

Wool bleaching is usually carried out on raw wool through treatment with oxidizing or reducing agents. Here, nano TiO2 as a photocatalyst was applied on raw wool fabric to decompose the naturally occurredpigments under daylight irradiation. To enhance nano particles adsorption on the fabric, it was firsttreated with protease and then treated with nano TiO2 along with citric acid. The whiteness andyellowness indexes and hydrophilicity features of the treated wool fabrics indicated a reasonablewhiteness with a significant improved hydrophilicity. This new wool bleaching approach was named as‘‘nano photo bleaching’’ as a most successful bleaching application.

Evaluation of Comfort Properties of Polyester Knitted Spacer Fabrics Finished with Water Repellent and Antimicrobial Agents

Bagherzadeh, R.,Montazer, M.,Latifi, M.,Sheikhzadeh, M.,Sattari, M. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.4

In order to impart barrier properties against water and microorganisms on breathable three dimensional spacer fabrics as medical or technical textiles, fabric samples were treated with two water repellent agents and a quaternary ammonium salt namely cetyltrimethylammonium bromide (CTAB), using pad-dry-cure method. Two different water repellent agents based on hydrocarbon and acrylic copolymer were used. The water repellent property of samples was tested by Bundesmann and contact angle tests. Antimicrobial activity of samples was analyzed quantitatively according to AATCC 100. Simultaneous finishing of samples was done with 3% CTAB and 4% fluoroalkyl acrylic copolymer. To study the effect of various treatments on comfort related properties, air and water vapor permeability, water repellency and compression were measured. The results showed that the antimicrobial and water repellent spacer fabrics can be achieved applying selected material without significant changes on their comfort properties. Also a regression model was presented to predict the water vapour permeability of knitted spacer fabrics based on course density (CPC) changing.

Single-step Synthesis and Characterization of Zr-MOF onto Wool Fabric: Preparation of Antibacterial Wound Dressing with High Absorption Capacity

Reihane Rezaee,Majid Montazer,Ali Mianehro,Mahnaz Mahmoudirad 한국섬유공학회 2022 Fibers and polymers Vol.23 No.2

Improvement of curative herbal extracts effectiveness through novel drug delivery systems is a field of study forthe researches nowadays. Zirconium-based metal-organic frameworks (Zr-MOFs) are one of the most capable porousnanocarriers that need a biocompatible template to be used in biomedical applications. In this work, Zr-MOF was synthesizedinto the wool fabric through in-situ one-pot method with different molar ratios. The final fabrics were characterizedthoroughly using various techniques and the effect of components on monodispersity and nucleation tendency of Zr-MOFonto the surface of wool were explained. The resultant fabric stablished absolute wash durability, increased air-permeabilityup to twice and reasonable hydrophilicity. Tensile strength and young modulus decreased 30 and 1244 % and strain increased66 %. Salvia Officinalis (SO) and Calendula Officinalis (CO) extracts were loaded onto the modified fabrics with 1154 and1842 % increased absorption capacity. The release profiles showed domination of diffusion mechanism. The wool-MOF-SOand CO displayed both 100 % antibacterial activity against Escherichia coli and 60.95 and 64.64 % against Staphylococcusaureus because of diverse antibacterial components. Calendula Officinalis proved biocompatibility with human skin howeverSalvia Officinalis exhibited high toxicity.

Facile technique for wool coloration via locally forming of nano selenium photocatalyst imparting antibacterial and UV protection properties

Maryam Razmkhah,Majid Montazer,Ali Bashiri Rezaie,Mahnaz Mahmoudi Rad 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.101 No.-

The lowering intake of organic dyes and their auxiliaries by employing nanoparticles for some specialtextile coloration is novel and interesting topic. Nonetheless, application of reducing, stabilizing andother chemical agents in textile nano-coloration is still undesirable from both environmental andhuman/aquatic life viewpoints. This research renders a facile technique for wool coloration throughlocally forming selenium nanoparticles using sodium selenite without using other chemicals. Beingindustrially enforceable, free from use of additional chemicals, showing photo-active ability to discolorthe dyeing effluent and low-toxic colorant are the main privileges of the used method. The wool fabricswere colored light to dark orange depending on coloration time and concentration of sodium selenite. Also, the color fastness properties against washing, rubbing and acid/alkaline spotting of prepared sampleswere excellent. Moreover, the colored fabrics indicated reasonable bactericidal and fungicidal performancestoward Escherichia coli, Staphylococcus aureus and Candida albicans (95, 70 and 100 %,respectively) and still remained compatible with human skin. The in-situ synthesis of selenium nanoparticleson wool fabric not only colored the wool but also promoted the UV-protecting performance by61.82 %, photocatalytic activity through methylene blue discoloration under sunlight by 97.22 % and tensilestrength by 11.27 %.

Simultaneous Superhydrophobic and Photo-catalytic Properties on Polyester Fabric: Prior in-situ Synthesis of Nano ZnO with Subsequent Fluorochemical-based Water Repellent Treatment

Niloufar Norouzi,Majid Montazer,Ali Akbar Gharehaghaji 한국섬유공학회 2022 Fibers and polymers Vol.23 No.12

A combination of two significant requirements of low surface energy and roughness should be utilized to obtainthe lotus effect on polyester fabric. In this research, ZnO nano-particles were first in-situ synthesized on the polyester fabricusing zinc nitrate and NaOH to create nano-roughness as one requirement for producing a superhydrophobic surface. TheZnO pre-treated fabrics were then irradiated under sunlight for seven consecutive days to enhance the hydrophilicity. Theywere then treated with a fluorocarbon-based water repellent through the pad-dry-cure method to generate the surface with lowenergy. The produced fabric considered as a substrate manipulated the lotus topography. The superhydrophobic properties oftreated fabrics were investigated through contact and sliding angles, spray, and water drop tests. The surface morphology wasobserved under SEM, and the presence and distribution of Zn and F elements were proved by EDX and mapping pictures. The self-cleaning behaviors were examined by discoloration of Methylene Blue as a stain under daylight irradiation. Theinfluence of nano ZnO pre-treatment and then daylight irradiation was positively indicated on the fluoropolymer posttreatmentthat was provided a superhydrophobic fabric with sliding and contact angles of 8 and 157.3 °, respectively.

Mothproofing of wool fabric utilizing ZnO nanoparticles optimized by statistical models

ALI NAZARI,Majid Montazer,Mehdi Dehghani-Zahedani 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.6

Wool with high strength, elasticity, and resiliency has good dye-ability and comfort however could bedigested by keratinolytic enzymes. In this research, wool fabric pre-treated with BTCA and then treatedwith nano ZnO. The treated fabrics showed mothproofing activity against the larvae of carpet beetle,Anthrenus verbasci, as feeding protein fibers. The role of both BTCA and nano ZnO concentrations onmothproofing properties of the wool fabric were optimized using statistical model of response surfacemethodology (RSM). Mothproofing was investigated through assessing wool weight loss during feedingby A. verbasci. The analysis of variance (ANOVA) was utilized to obtain the optimum models for woolwith mothproofing properties. The damages on the wool surface confirmed with scanning electronmicroscopy and digital camera images. Further transmission and absorbance spectra approved the UVprotection properties of the nano ZnO treated wool in both UVA and UVB.

Magnetic field-induced improvement in O2/N2 gas separation applications of simultaneously co-casted superparamagnetic mixed matrix membranes

Nahid Nikpour,Amir H. Montazer,Ali Khayatian 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.105 No.-

For industrial purposes and current challenges facing the world, the selective separation of oxygen andnitrogen gases from the air by polymer mixed matrix membranes is crucial. Due to the diamagnetic natureof water molecules used in the fabrication of the polymer membranes, the magnetic field (H) mayaffect the resulting separation performance. Here, using a simultaneous co-casting method, empty andsuperparamagnetic Fe3O4 nanoparticle-filled double-layer polyethersulfone (PES)/Pebax 1657 mixedmatrix membranes are fabricated under different external magnetic field intensities in the range ofH = 0–5000 Oe. The O2 and N2 permeances of the PES/Pebax membranes are found to increase withincreasing the magnetic field intensity, arising from an enhancement in the polymer chain mobility. The Fe3O4 nanoparticles form thick root-like superparamagnetic channels on the double-layer PES/Pebax surface at a magnetic field intensity of 4000 Oe, resulting in an O2/ N2 ideal selectivity of 3.59at a feed gas pressure of 10 bar. This indicates an improvement of 40% in the selectivity compared to asingle-layer Pebax membrane filled with Fe3O4 nanoparticles.

In-situ Synthesis of SiO2 Nanoparticles on Polyester Fabric as Benign Multi-purpose Catalysts

Bahare Nozari,Majid Montazer,Mahnaz Mahmoudi Rad 한국섬유공학회 2018 Fibers and polymers Vol.19 No.12

Here, silica nanoparticles (NPs) as safe multi-purpose catalysts were in situ synthesized on PET fabric to achieve a higher quality fabric. The PET fabric was treated in an aqueous solution of sodium silicate and ammonia at boil for 1 h to insitu synthesis silica NPs along with aminolysis of the fabric. Effect of silica NPs as the multi-purpose catalysts on the fabric were subjected to various analysis such as self-cleaning, hydrophilic, antibacterial and antifungal properties and also thermal resistance. The surface morphology, the crystalline structure and elemental analysis were studied by Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and map and energy dispersive X-ray (EDX) analysis. The optimized treated fabric indicated 4 s for the water to spread and 65 o for contact angle provided higher hydrophilic properties. Silica NPs on the fabric showed thermo-catalytic behavior protecting against yellowing at high temperature (200 oC for 3 h) proved the higher thermal resistance of the treated fabric. Also, the fabric specified good self-cleaning properties through discoloration of methylene blue solution. Further, the treated fabric proposed 100 % anti-bacterial and anti-fungal activities against Staphylococcus aureus, Escherichia coli and Candida albican along with good cell viability. Overall, this research indicates silica NPs as multi-purpose catalysts including photo, bio and thermo-catalyst on the PET fabric using low price materials.