scholarly journals Evaluation of Color Properties of Wool Fabrics Dyed with Calligonum comosum at Different Dye Conditions

2021 ◽  
Vol 11 (4) ◽  
pp. 4227-4242
Keyword(s):  
Antimicrobial Activity ◽  
Bath Temperature ◽  
Strength Analysis ◽  
Wool Fabric ◽  
Color Strength ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Dyeing Process ◽  
Wool Fabrics ◽  
Natural Fabrics

In this search, the wool fabric was dyed with a natural dye Calligonum comosum (Callig. Co. dye); the dyeing process was applied under different conditions by changing dye bath temperature, time of dyeing, and pH of dye bath also using different mordants. Ultraviolet protection factor (UPF) was determined for each dyed wool sample. The role of these dying conditions on the via color strength analysis their effects on the reflectance spectra were investigated using the spectro-photometer tool, CIE tristimulus values, and the color parameters. The dye-ability strength and fastness to washing and perspiration properties of these wool samples dyed with (Callig. Co. dye) were carried out spectrophotometrically and evaluated the antimicrobial activity for blank and dyed wool fabrics via gram-positive and gram-negative was followed. The results showed that dyeing wool fabrics with (Callig. Co. dye) increased their protective abilities markedly, and they have effective protection against UV rays, also improving their antimicrobial activity. Moreover, Different conditions of the dye bath changed the optical properties noticeably. The present study will be useful for dermatologists advising patients regarding the UPF properties of clothes made from natural fabrics (wool) and dyed with natural colorants (Callig. Co. dye).

scholarly journals Antimicrobial Activity and Barrier Properties against UV Radiation of Alkaline and Enzymatically Treated Linen Woven Fabrics Coated with Inorganic Hybrid Material

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5701
Author(s):  
Joanna Olczyk ◽  
Jadwiga Sójka-Ledakowicz ◽  
Anetta Walawska ◽  
Anna Antecka ◽  
Katarzyna Siwińska-Ciesielczyk ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Uv Radiation ◽  
New Technologies ◽  
Barrier Properties ◽  
Dip Coating ◽  
Sem Analysis ◽  
Woven Fabrics ◽  
Protection Factor ◽  
Ultraviolet Protection Factor ◽  
Harmful Effects

One of the directions of development in the textiles industry is the search for new technologies for producing modern multifunctional products. New solutions are sought to obtain materials that will protect humans against the harmful effects of the environment, including such factors as the activity of microorganisms and UV radiation. Products made of natural cellulose fibers are often used. In the case of this type of material, it is very important to perform appropriate pretreatment before subsequent technological processes. This treatment has the aim of removing impurities from the surface of the fibers, which results in the improvement of sorption properties and adhesion, leading directly to the better penetration of dyes and chemical modifiers into the structure of the materials. In this work, linen fabrics were subjected to a new, innovative treatment being a combination of bio-pretreatment using laccase from Cerrena unicolor and modification with CuO-SiO2 hybrid oxide microparticles by a dip-coating method. To compare the effect of alkaline or enzymatic pretreatment on the microstructure of the linen woven fabrics, SEM analysis was performed. The new textile products obtained after this combined process exhibit very good antimicrobial activity against Candida albicans, significant antibacterial activity against the Gram-negative Escherichia coli and the Gram-positive Staphylococcus aureus, as well as very good UV protection properties (ultraviolet protection factor (UPF) > 40). These innovative materials can be used especially for clothing or outdoor textiles for which resistance to microorganisms is required, as well as to protect people who are exposed to long-term, harmful effects of UV radiation.

Sustainable ultrasonic dyeing of wool using coconut coir extract

2019 ◽  
Vol 90 (7-8) ◽  
pp. 744-756 ◽  
Author(s):  
Shahid Adeel ◽  
Shumaila Kiran ◽  
Noman Habib ◽  
Atya Hassan ◽  
Shagufta Kamal ◽  
...  
Keyword(s):  
Cocos Nucifera ◽  
Added Value ◽  
Wool Fabric ◽  
Synthetic Dyes ◽  
Wool Fabrics ◽  
Coconut Coir ◽  
Wool Dyeing ◽  
Natural Fabrics ◽  
Textile Sector ◽  
Harmful Effects

Due to an increasing awareness of the harmful effects of synthetic dyes among the global community, the demand for natural dyes in the textile sector has increased. The current study has been conducted to explore coconut coir, that is, Cocos nucifera, as a new dye yielding plant for wool dyeing under ultrasonic (US) radiation. Unirradiated and US-irradiated extracts of coconut coir were utilized to dye unirradiated and US-irradiated wool fabrics. To make the process more sustainable, acacia, henna, turmeric and pomegranate extracts as biomordants were used to dye wool fabric at 65℃ for 45 min. It was found that a good color yield was achieved by dyeing US-treated wool with US-treated acidic methanolic extract at 65℃ for 45 min. It is found that biomordanting profoundly added value in coloration and also enhanced the fastness rating of the dyed wool fabrics. It is concluded that US rays have excellent efficacy for exploring the coloring wealth of plants for dyeing of natural fabrics.

Antimicrobial Activity of Wool Fabric Dyed with Natural Dyes

2011 ◽  
Vol 15 (3) ◽  
pp. 1-10 ◽  
Author(s):  
N.F. Ali ◽  
R.S.R.EL. Mohamedy ◽  
E.M. El- Khatib
Keyword(s):  
Antimicrobial Activity ◽  
Inhibition Zone ◽  
Natural Dyes ◽  
Wool Fabric ◽  
Fastness Properties ◽  
Dye Uptake ◽  
Cassia Fistula ◽  
Color Strength ◽  
Test Organisms ◽  
Dyed Fabric

Natural dyes extracted from Cassia fistula and onion peels are used to dye wool that is pretreated with chitosan by using tannic acid as a mordant. The effect of the mordant concentration on the color strength (K/S) is discussed. The results obtained indicated that K/S increases after treatment with chitosan. It is also noticed that K/S increases with an increasing concentration of chitosan. K/S also increases with an increase of mordant concentration until 4% and then decreases. The effect of the dye bath pH, dyeing temperature and dyeing time are also studied. The K/S and dye uptake exhibit high values. Good fastness properties of the dyed fabric are achieved. The antimicrobial activity of chitosan-treated wool fabric is tested in accordance to diffusion agents. Test organisms, such as Escherichia coli, Bacillus subitilus Pseudomons aeruginosa and Staphylococcus aureus are used and the results indicate that the samples treated with a lower concentration of chitosan exhibit a smaller inhibition zone.

scholarly journals Surface Functionalization of Wool via Microbial-Transglutaminase as Bio-Mordant to Improve Dyeability with Madder in the Presence of Alum

Coatings ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 78 ◽  
Author(s):  
Reza Assefi Pour ◽  
Jinxin He
Keyword(s):  
Critical Concentration ◽  
Microbial Transglutaminase ◽  
Wool Fabric ◽  
Color Fastness ◽  
Color Strength ◽  
Dyeing Process ◽  
Angle Measurements ◽  
Contact Angle Measurements ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Herein, the wool fabric was mordanted with alum, treated with microbial transglutaminase (m-TGase), and then dyed with madder. Different concentrations of alum and m-TGase were used to find out the optimum condition to achieve the best color after dyeing the wool fabrics with aqueous extract of madder. FT-IR spectroscopy and scanning electron microscopy (SEM) methods were applied to characterize the as-prepared samples. Contact angle measurements showed that the water uptake capability was increased in the case of the wool sample treated with alum and enzyme. Moreover, the samples were assessed for color strength (K/S) and color fastness. Our results showed that the optimal condition to get the highest color value was for the sample with 10% owf (of weight of fabric) alum and 5% owf m-TGase. Furthermore, it was found that there was a critical concentration for enzyme so that an increase in m-TGase amount would cause damage to the scales of fibers. The best condition of the dyeing process was discussed in this study, and also the proposed mechanism was presented. Indeed, treatment of wool with m-TGase led to a reduction in the amount of consumed alum, while investigations in color performances demonstrated the enhancement in color fastness, as well as color strength.

Aqueous extraction of buckwheat hull and its functional application in eco-friendly dyeing for wool fabric

2019 ◽  
Vol 90 (5-6) ◽  
pp. 641-654 ◽  
Author(s):  
Wei Zhang ◽  
Jiming Yao ◽  
Peng Huang ◽  
Shuai Xing
Keyword(s):  
Textile Industry ◽  
Langmuir Model ◽  
Uv Protection ◽  
Wool Fabric ◽  
Synthetic Dyes ◽  
Dyeing Process ◽  
Wool Fabrics ◽  
Monolayer Adsorption ◽  
Reduction Stability ◽  
Agricultural Byproduct

As a cheap and abundant agricultural byproduct, buckwheat hull is expected to be applied in many fields such as textile, biotechnology, and medicine. In this paper, the physicochemical properties of buckwheat hull extraction (BHE) and its dyeing abilities for wool fabric with different eco-friendly mordants and methods were studied. The theoretical process, colorfastness, and UV-protection properties of the dyed wool fabric with BHE were investigated. The results showed that BHE solution had good thermal and reduction stability. The dyeing process of BHE on wool was in accordance with the Langmuir model and had uniform monolayer adsorption. Wool fabrics dyed directly or through a mordanting process demonstrated good washing colorfastness and acceptable crocking- and light colorfastness. The dyed wool fabrics with KAl2+ and meta-mordanting showed excellent UV-protection as well as exceptional antibacterial activity against Escherichia coli. Therefore, BHE presents a novel alternative for some synthetic dyes that are applied in the textile industry.

Research on microwave pad dyeing process for wool fabric

2017 ◽  
Vol 21 (4) ◽  
pp. 263-275 ◽  
Author(s):  
Xue Zhao
Keyword(s):  
Ph Value ◽  
Wool Fabric ◽  
Process Conditions ◽  
Colour Difference ◽  
Average Deviation ◽  
Sodium Bisulphite ◽  
Content Type ◽  
Dyeing Process ◽  
Wool Fabrics ◽  
Microwave Fixation

Purpose This paper aims to study microwave pad dyeing process for wool fabric. Influences of various dyeing process conditions including galactomannan dosage, urea dosage, sodium bisulphite dosage, pH value, microwave irradiation power, treating time and cold batching time before microwave fixation on K/S values were analysed. The colour yield, fixation and levelness were compared between microwave fixation and cold batching fixation. Design/methodology/approach Colour yield (K/S values) was calculated using a Datacolor SF650 colour measuring and matching instrument (10° standard observer, CIE D65 light source Measuring; Datacolor, USA) and was used to determine the depth of the shade of dyed wool fabrics. Levelness of dyeing was evaluated also using the Datacolor SF650 colour measuring and matching instrument by measuring average deviation (S), range (P) of the maximum and the minimum for lightness (L), chroma (C) and hue (h), and balanced colour difference (ΔE) at 20 specified uniform locations on the wool fabrics. The colour difference was calculated as per the equation ΔE=(ΔL2+Δa2+Δb2)1/2 as appearing in the Experimental section. Fixation was determined using a Datacolor SF650 colour measuring and matching instrument by measuring ratio the of K/S for wool fabrics that were rinsed, washed, neutralised and then dried, and wool fabrics that were dried after fixation without washing. The pH of the padding solution was evaluated using a PHSJ-4A PH meter (Datacolor, USA). SEM analysis was done on JEOL JSM-5600LV machine (JEOL Ltd, Japan). Findings This study is based on application of microwave technology in the processing of silk. Originality/value It was found in laboratory experiments that uniform dyeing and deeper colour can be achieved throughout the microwave pad dyeing process for wool by using galactomannan. The novel process could reduce the dyeing time and the energy consumption of the traditional cold pad-batch dyeing process for wool fabric.

scholarly journals Functionalization of Natural Fibers Properties by using TiO2Nanoparticles to Improve its Antimicrobial Activity

2021 ◽  
Vol 12 (3) ◽  
pp. 4177-4191
Keyword(s):  
Antimicrobial Activity ◽  
Natural Fibers ◽  
Post Treatment ◽  
Process Conditions ◽  
Color Strength ◽  
Tio2 Nps ◽  
Dyeing Process ◽  
Wool Fibers ◽  
Self Cleaning ◽  
Pre Treatment

Natural dyes in textile coloration are earning popularity all over the world during the last decade. The current study deals with extracting dye from the alkanet plant as a natural dye by using the microwave to save energy and time. To obtain the color of aimed specific red hue, the influence of certain dyeing process conditions, namely, dyestuff concentrations, pH, temperature, and duration of the dyeing process, have been studied. This research presents the results of color strength (K/S) and CIEL (L* a*b*) color values. In addition, fastness tests of the dyed samples were assessed. Modifying natural fibers (silk and wool) are applied by using synthesized TiO2 nanoparticles and the commercial one. The effect of treatment with TiO2 NPs on the multifunctional properties of the silk and wool fibers, including coloration, antibacterial against Escherichia coli (G-), and Staphylococcus aureus (G+), and self-cleaning properties were evaluated. There were characterized by transmission electron microscopy (TEM). The obtained results indicated that the optimization of dyeing process parameters of pre-treatment and post-treatment of dyed silk and wool fibers with synthesized TiO2 NPs has a significant influence on the obtained shades as well as the fastness properties. The post-treatment of silk and wool fibers with the synthesized TiO2 NPs followed by dying displayed an excellent antimicrobial activity and self-cleaning properties.

Functionalization of Wool Fabric Using Pineapple Peel Extract (PPE) as a Natural Dye

2019 ◽  
Vol 6 (5) ◽  
pp. 16-20
Author(s):  
Javed Sheikh ◽  
Ashutosh Agrawal ◽  
Harsh Garg ◽  
Aashi Agarwal ◽  
Prasun Mathur
Keyword(s):  
Antioxidant Activity ◽  
Functional Properties ◽  
Wool Fabric ◽  
Fastness Properties ◽  
Color Strength ◽  
Wool Fabrics ◽  
Textile Functionalization ◽  
Pineapple Peel ◽  
Dyed Fabrics ◽  
Peel Extract

Large quantities of pineapple peel waste are discarded every year that can be used for extraction of useful textile functionalization chemicals. In the present work, pineapple peel extract (PPE) was used for simultaneous dyeing and multifunctional finishing of wool fabric. The PPE was used for dyeing wool fabrics, with and without mordants. The dyed fabrics were characterized and evaluated for color values and fastness properties. The functional properties of the dyed fabrics viz. antibacterial activity, UV protection, and antioxidant activity were evaluated. It was confirmed that wool fabric can be dyed using pineapple peel extract without mordants; however, additional color strength can be gained using pre-mordanting. The dyed fabrics showed light shades with good fastness properties along with excellent functional properties.

scholarly journals Natural Dyeing of Cellulose and Protein Fibers with the Flower Extract of Spartium junceum L. Plant

Materials ◽  
2021 ◽  
Vol 14 (15) ◽  
pp. 4091
Author(s):  
Zorana Kovačević ◽  
Ana Sutlović ◽  
Ana Matin ◽  
Sandra Bischof
Keyword(s):  
Negative Impact ◽  
Environmentally Friendly ◽  
Future Research ◽  
Wool Fabric ◽  
Dyeing Process ◽  
Protein Fibers ◽  
Wool Sample ◽  
C Value ◽  
Total Difference ◽  
Spartium Junceum

In this study, the natural dye was extracted from Spartium junceum L. (SJL) flowers and applied on cellulose (cotton) and protein (wool) fabric. Fabrics were pre-mordant with alum prior to the dyeing process. Considering the global requirements on zero waste and green policy, the dyeing process was intended to be as much as possible environmentally friendly but still effective. Therefore, mordant concentration was optimized due to the reduction of the negative impact. The efficiency of the dyeing process was investigated by examination of fabrics’ color characteristics and colorfastness to washing properties. In this paper, we have proved that the extracted dye from Spartium junceum L. is an acidic dye (mordant dye) which is more applicable for the treatment of wool fabrics. In this paper, it was proved that phytochemicals responsible for coloring are part of the flavonoids group. The UV absorption spectra of extracted dye show 4 bands in the region of λmax 224, 268, 308 and 346 nm which are ascribed to bands characteristic for flavonoids. Wool fabric pre-mordant with 3% alum and dyed shows great chromatic (C*) properties where C* value is in a range from 47.76 for unwashed samples to 47.50 for samples after 5 washing cycles and color hue (h°) is in a range 82.13 for unwashed samples to 81.52 for samples after 5 washing cycles. The best result regarding the colorfastness properties is shown by the wool sample treated with 3% alum after 5 washing cycles (total difference in color (Delta E*) = 0.87). These results confirm that metal (Al) from alum mordant make strong chemical bonds with wool substrate and dye since Delta E* values decrease in comparison to Delta E* values of the cotton samples treated the same way. The results revealed it is possible to reduce the concentration of mordant up to 3% and obtain satisfactory results regarding the colorfastness. Nevertheless, future research will go in the direction of replacing synthetic mordant with a more environmentally friendly one.

Dyeing Properties of Chitosan-Sulfamic Acid Solution Treated Wool with Silane Coupling Agent

2011 ◽  
Vol 331 ◽  
pp. 377-381 ◽  
Author(s):  
Xue Mei He ◽  
Kong Liang Xie
Keyword(s):  
Low Temperature ◽  
Acid Solution ◽  
Crosslinking Agent ◽  
Sulfamic Acid ◽  
Weak Acid ◽  
Color Strength ◽  
Surface Appearance ◽  
Wool Fabrics ◽  
Wool Fibers ◽  
Higher Temperature

In this study, wool fabrics were treated with different concentration of chitosan sulfamic acid solution under using 3-glycidyloxypropyltrimethoxysilane (GPTMS) as a crosslinking agent. The structure of treated wool fabrics was investigated by SEM, DSC-TG. Treated wool fibers had a irregular surface appearance, showed the presence of amounts of Nano SiO2 and their aggregates deposited onto surface of wool fibers. The thermal properties were obviously enhanced. Treated wool fabrics is more stable in higher temperature than that of untreatment. Treated wool fabrics were dyed with weak acid red B, and dyeing behaviour were studied by means of by light reflectance measurements. The color strength (K/S value) of treated wool fabrics obviousily increased from 5.33 to 31.68 by comparison with the untreatment. As a result, it can be concluded that the chitosan sulfamic acid solution with GPTMS treatment could improve the weak acid red B low temperature dyeing on wool. Further, low temperature dyeing of wool fabrics with chitosan-sulfamic acid is safe, so the results obtained are quite promising as a basis for possible future industrial application.

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