scholarly journals Sustainable Dyeing of Cellulosic Fabric with Reactive Violet H3R dye: Ultrasonic Assisted Improvement in Color Characteristic

2021 ◽  
Vol 65 (3) ◽  
Author(s):  
Shahid Adeel ◽  
Shumaila Kiran ◽  
Maria Jannat ◽  
Nimra Amin ◽  
Atya Hassan ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Ultrasonic Treatment ◽  
Green Technology ◽  
Optimal Conditions ◽  
Reactive Dyeing ◽  
Color Features ◽  
Colour Strength ◽  
Ultrasonic Assisted ◽  
Cellulosic Fabric ◽  
Glauber Salt

Abstract. Ultrasonic radiation (U. S.) is the sustainable and green technology which has transformed the domain of textiles. In the current study, ultrasonic treatment was employed to improve the reactive dyeing of cellulosic fabricby Violet H3R dye. For this purpose, U.S. treatment has been given to both solution & fabric upto 50 min. at 30 to 60 oC. Promising results were obtained when cellulosic fabric was exposed to U.S. treatment at at 50 oC for a period of 30 min. using dye bath of 55 mL having 7.5 pH. Glauber salt (8 g/L) was employed as an exhausting agent at 60 oC for 55 min. Various shades of cotton fabric dyed at optimal conditions were obtained which showed that U.S. treatment has enhanced not only the colour strength but also  the fastness rating from medium to outstanding. So, it can be concluded from the current study that U. S. treatment is not only good enough for improving the dyeing aptitude of Reactive Violet H3R dye but it also uplifts the color features of dyed cotton fabric.   Resumen. La radiación ultrasónica (U:S. por sus siglas en inglés) es la tecnología sostenible y verde que ha transformado el campo de los textiles. En este estudio, se llevó a cabo un tratamiento ultrasónico para mejorar el teñido reactivo de tela celulósica por el tinte Violet H3R. Para este propósito, se llevó a cabo un tratamiento con ultrasonido tanto a la solución como a la tela por hasta 60 minutos a 30 y 60 oC. Se obtuvieron resultados prometedores cuando la tela celulósica se expuso a un tratamiento con ultrasonido a 50 oC durante un período de 30 min, utilizando un baño de tinte (de 55 mL) a pH 7,5 de sal de Glauber (8 g/L). Estas condiciones representan un sistema de agotamiento, aplicado a 60 oC durante 55 min. Se obtuvieron varios tonos de tela de algodón teñidos en condiciones óptimas, lo que mostró que el tratamiento por ultrasonido mejora no solo la intensidad del color sino también el índice de solidez de media a sobresaliente. Por lo tanto, del estudio actual se puede concluir que el tratamiento con ultrasonido no solo es lo suficientemente bueno para mejorar la capacidad de teñido del tinte Reactive Violet H3R, sino que también realza las características del color de la tela de algodón teñida.

Influence of MCT-β-cyclodextrin treatment on strength, reactive dyeing and third-hand cigarette smoke odor release properties of cotton fabric

Cellulose ◽  
2017 ◽  
Vol 24 (11) ◽  
pp. 5233-5250 ◽  
Author(s):  
Jantip Setthayanond ◽  
Chotima Sodsangchan ◽  
Potjanart Suwanruji ◽  
Porntip Tooptompong ◽  
Ozan Avinc
Keyword(s):  
Cigarette Smoke ◽  
Cotton Fabric ◽  
Reactive Dyeing

scholarly journals Colour properties of cigarette smoke-exposed cotton and silk fabrics and their nicotine release

2018 ◽  
Vol 69 (04) ◽  
pp. 328-333
Author(s):  
NONGNUCH WANTANEEPORN ◽  
SUWANRUJI POTJANART ◽  
SETTHAYANOND JANTIP
Keyword(s):  
Cigarette Smoke ◽  
Cotton Fabric ◽  
Potential Risk ◽  
Aqueous Media ◽  
Colour Change ◽  
Colour Properties ◽  
Buffer Solutions ◽  
Colour Strength ◽  
Dyed Fabrics ◽  
Silk Fabrics

Exposure to cigarette smoke caused colour change to undyed cotton and silk fabrics by a yellowing effect. The degree of yellowing was more dominant on cotton fabric. When the dyed fabrics were subjected to cigarette smoke, a more pronounced effect was observed on the pale shade dyed fabrics. Shade alteration was inversely related to the colour strength of the dyed fabrics. In addition, a longer exposure time also induced colour change in the fabrics while the colour strength of the dyed fabrics was unaffected. Nicotine release from the cigarette smoke-exposed fabrics in the wet state was studied in different aqueous media, viz. water, buffer solutions (pH 5.5 and 8.0) and artificial sweats (acid and alkaline) in order to reflect the potential risk to textile users of the toxicants from textiles contaminated with cigarette smoke.

scholarly journals Biosafety Evaluation and Quantitative Determination of Poly(hexamethylene biguanide) (PHMB) Coated on Cellulosic Fabrics by Kubelka-Munk Equation

2021 ◽  
Author(s):  
Wen-Yi Wang ◽  
Jia-Chi Chiou ◽  
Wan-Xue Chen ◽  
Jia-Li Yu ◽  
Chi-wai Kan
Keyword(s):  
Quantitative Determination ◽  
Cotton Fabrics ◽  
Bromophenol Blue ◽  
Blue Dye ◽  
Feasible Method ◽  
Colour Strength ◽  
Low Concentrations ◽  
Cellulosic Fabric ◽  
Biosafety Evaluation

Abstract It is a challenge to determine the quantity of cationic finishing agents on the surface of cellulosic fabrics. Herein, we report a direct and feasible method by Kubelka-Munk equation to quantify the cationic poly (hexamethylene biguanide) hydrochloride (PHMB) adsorbed onto cotton fabrics based on the principle of formation of a stable blue dye between PHMB and bromophenol blue sodium (BPB). The adsorption of PHMB onto cotton fabrics was first investigated and the maximum adsorption of PHMB was found to be around 8 mg per gram of cotton fabric. After being dyed with BPB, colour strength shows a positive correlation with PHMB at low concentrations (< 2400 mg/L). A linear relationship with a high correlation (C(PHMB) = (K/S—0.7411)/3.4517, R2 = 0.9983) was thus established between colour strength and PHMB concentration. However, this equation should fulfill four requirements for quantifying PHMB: (1) the distribution of PHMB on the surface of cellulosic fabric should be in the form of a monolayer with the content less than 5.3 mg/g; (2) an excess of BPB dyebath should be applied; (3) the dyeing should come to equilibrium; and (4) the fabrics should be evenly dyed. Moreover, MTT assay results indicate that excess PHMB coated on cotton fabrics can cause cytotoxicity and the quantity of PHMB should not exceed 4.62 mg per gram of cotton fabrics for the purpose of biosafety. The sample can be considered non-cytotoxic if the K/S value is lower than 13.2 after dyeing with BPB.

Sericin assisted eco-friendly reactive dyeing for cotton fabric

Cellulose ◽  
2019 ◽  
Vol 26 (10) ◽  
pp. 6317-6331
Author(s):  
Pervin Anis ◽  
Tuba Toprak ◽  
Egemen Kutlu
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyeing

Fruit shells of Camellia oleifera Abel as natural colourants for pigment printing of cotton fabric

2017 ◽  
Vol 46 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Monthon Nakpathom ◽  
Buppha Somboon ◽  
Nootsara Narumol ◽  
Rattanaphol Mongkholrattanasit
Keyword(s):  
Cotton Fabric ◽  
Textile Industry ◽  
Camellia Oleifera ◽  
Fastness Properties ◽  
Light Fastness ◽  
Content Type ◽  
Colour Fastness ◽  
Colour Strength ◽  
Screen Printing Technique ◽  
First Time

Purpose The present study aims to focus on the feasibility of using an aqueous extract from the fruit shell of Camellia oleifera Abel as a source of natural colourant in printing-paste preparation for pigment printing of cotton fabric. The effects of pre- and post-mordanting with three common metallic mordants, that is AlK(SO4)2, CuSO4 and FeSO4 on colour yield and colour fastness properties are also investigated. Design/methodology/approach The printing paste was prepared by mixing the concentrated Camellia oleifera Abel fruit shell extract solution with commercially available synthetic thickener and binder. The fabric sample was printed with the prepared printing paste using a flat-screen printing technique. To determine the effects of pre- and post-mordanting, AlK(SO4)2, CuSO4 and FeSO4 mordant aqueous solutions with various concentrations were applied using the pad-dry technique. Comparisons between printing with and without mordants were evaluated in terms of colour strength (K/S values) and colour fastness to washing, light, crocking and perspiration. Findings Without the mordants, the printed fabric had a yellowish brown shade with acceptable colour fastness properties, that is fair to good wash fastness, moderate light fastness, good to very good crocking fastness and fair to good perspiration fastness. The use of mordants, especially CuSO4 and FeSO4, not only enhanced colour strength but also imparted different colours to the fabric. Compared to the unmordanted fabrics, colour fastness properties were mostly comparable or improved in the mordanted fabrics depending on the type and concentration of mordants. Research limitations/implications Although in the case of CuSO4 the light fastness was increased to a good to very good level, it is recommended that the final print be produced with a concentration of less than 0.125 gL−1 to yield the print with the residual amount of Cu metal under the limit, that is less than 50 ppm as regulated by the Oeko-Tex® standard. Practical implications The obtained prints from Camellia oleifera Abel fruit shell extract provided shades with satisfactory colour fastness to washing, light, crocking and perspiration. The extract from Camellia oleifera Abel fruit shell has the potential to be used as an alternative to synthetic dye in the textile industry. Originality/value The use of Camellia oleifera Abel fruit shells, which are considered as abundant byproducts of tea seed oil production, as natural colouring agents for pigment printing of cotton fabric has been reported for the first time. It will minimise the environmental impact of this waste and create more valuable textile products.

Eco-friendly salt-free reactive dyeing of cotton (muslin) fabric after cationization with amino acid from soya

2016 ◽  
Vol 86 (20) ◽  
pp. 2179-2192 ◽  
Author(s):  
Ashis Kumar Samanta ◽  
Tapas Ranjan Kar ◽  
Asis Mukhopadhyay ◽  
Debashis Shome ◽  
Adwaita Konar
Keyword(s):  
Amino Acids ◽  
Cotton Fabric ◽  
Reactive Dye ◽  
Reaction Scheme ◽  
Dye Uptake ◽  
Reactive Dyeing ◽  
Chemically Modified ◽  
High Exhaustion ◽  
Natural Amino Acids ◽  
Color Depth

Bleached cotton fabric was chemically modified (cationized)with natural amino acids extract obtained by acid hydrolysis (6N HCL) from soya bean seed waste, adding MgCl2 as an acid donor in the pad-dry-calendaring process to investigate the changes in textile properties and its dyeability with reactive dye in both a conventional alkaline dye bath and salt-free acidic dye bath. This modified cotton incorporates new functional groups producing [Formula: see text] in acid bath to obtain cationized cotton, rendering it to eco-friendly salt-free reactive dyeing at acceptable shade depth without much sacrifice of other textile-related properties. Bi-functional high exhaustion-type reactive dye shows better dye uptake than mono-functional cold brand as well as hot brand reactive dye. Moreover, the application of a specific dye fixing agent further improves surface color depth ( K/ S) of the soya-modified cotton fabric. The study of surface morphology of said chemically modified cotton substrate indicates a higher degree of surface deposition, that is, more anchorage of soya extracted amino acids on cotton fabric. Chemical anchorage as per the reaction scheme postulated for such modifications is verified with Fourier transform infrared spectroscopy. Finally, it is revealed that cotton treated with soya extract provides a new route of eco-friendly salt-free reactive dyeing with high exhaustion-type reactive dyes showing much higher dye uptake than the control cotton fabric.

scholarly journals THE USE OF ULTRASOUND IN THE PREPARATION OF THE CATALYST Ru/HPS MN 100 AND ITS ACTIVITY IN THE PROCESS OF HYDROGENATION OF XYLOSE AND LACTOSE

2021 ◽  
pp. 41-48
Author(s):  
Максим Евгеньевич Григорьев ◽  
Роман Викторович Бровко ◽  
Евгений Олегович Долуда
Keyword(s):  
Aqueous Solution ◽  
Partial Pressure ◽  
Catalytic System ◽  
Ultrasonic Treatment ◽  
Ruthenium Catalyst ◽  
Hydrogenation Process ◽  
Continuous Reactor ◽  
Optimal Conditions ◽  
Type Reactor ◽  
Kinetic Testing

В работе рассмотрена возможность использование ультразвука при получении рутений содержащей каталитической системы Ru/СПС MN 100. Проведено кинетическое тестирование данного катализатора и сравнение его активности с таким же катализатором, но синтезированным без использования ультразвука, в процессе гидрирования ксилозы и лактозы до соответствующих полиолов - ксилита и лактита. Процесс гидрирования осуществлялся в реакторе периодического и непрерывного действия при оптимальных условиях (температуре, концентрации моно- и дисахарида, парциальном давлении водорода, скорости подачи водного раствора ксилозы и лактозы и скорости подачи водорода). Установлено, что ультразвуковая обработка рутениевого катализатора способствует повышению его активности, что отражается на увеличении конверсии моно- и дисахарида при проведении процесса в периодических условиях, при этом практически не происходит изменения конверсии субстратов при их гидрировании в реакторе проточного типа. The paper considers the possibility of using ultrasound in the production of ruthenium-containing catalytic system Ru/SPS MN 100. Kinetic testing of this catalyst was carried out and its activity was compared with the same catalyst, but synthesized without the use of ultrasound, in the process of hydrogenation of xylose and lactose to the corresponding polyols - xylitol and lactite. The hydrogenation process was carried out in a periodic and continuous reactor under optimal conditions (temperature, concentration of mono - and disaccharide, partial pressure of hydrogen, the rate of supply of an aqueous solution of xylitol and lactite and the rate of supply of hydrogen). It was found that ultrasonic treatment of the ruthenium catalyst contributes to an increase in its activity, which is reflected in an increase in the conversion of mono - and disaccharide during the process under periodic conditions, while there is practically no change in the conversion of substrates during their hydrogenation in a flow-type reactor.

Investigating the Impact of Hard Water on Natural Dyeing of Cotton Fabric by Tagetes erecta Flowers

2019 ◽  
Vol 41 (5) ◽  
pp. 788-788
Author(s):  
Iqra Khalid Iqra Khalid ◽  
Shaukat Ali Shaukat Ali ◽  
Muhammad Tahir Hussain Muhammad Tahir Hussain ◽  
Rizwan Ashra Rizwan Ashra ◽  
Asfandyar Khan and Naseer Ahmad Asfandyar Khan and Naseer Ahmad
Keyword(s):  
Cotton Fabric ◽  
Water Hardness ◽  
Hard Water ◽  
Significant Degree ◽  
Tagetes Erecta ◽  
Textile Processing ◽  
Natural Colorant ◽  
Natural Dyeing ◽  
Colour Strength ◽  
The Impact

Ground water is commonly used media for most of textile processing treatments and it is often inherent with significant degree of hardness. This study is undertaken to evaluate the influence of water hardness on dyeing of cotton fabric by natural colorant extracted from flowers of Tagetes erecta. Response Surface Methodology (RSM) was applied for optimization of extraction and application of the natural colorant. Results were examined by Analysis of variance (ANOVA). In the present study, effect of process parameters viz. time (30–90 min), temperature (60–90oC) and concentration of hard water (250–1250 ppm) on natural dyeing process (K/S value) were modelled by employing RSM based central composite design. For the applications of natural colorants, mordanting technique was employed wherein the results of pre-mordanting and post-mordanting were studied comparatively. The dyed fabric was evaluated for colour strength (K/S) and CIELab values. It was observed that increase in water hardness adversely influenced the colour strength and it also adds to significant degree of unevenness in cotton dyeing using natural colorant.

A vacuum-dehydration aided pad-steam process for improving reactive dyeing of cotton fabric

2017 ◽  
Vol 168 ◽  
pp. 1193-1200 ◽  
Author(s):  
Xinqing Zhang ◽  
Kuanjun Fang ◽  
Jianfei Zhang ◽  
Dawu Shu ◽  
Jixian Gong ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyeing ◽  
Vacuum Dehydration

Salt-free reactive dyeing of the cotton fabric modified with chitosan-poly(propylene imine) dendrimer hybrid

2015 ◽  
Vol 16 (5) ◽  
pp. 1075-1081 ◽  
Author(s):  
Mousa Sadeghi-Kiakhani ◽  
Siyamak Safapour
Keyword(s):  
Cotton Fabric ◽  
Reactive Dyeing ◽  
Poly Propylene
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