Performance of pretreated antimicrobial agent (AEM-5707) on cotton fabric dyed with reactive dye (original) (raw)
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Investigation on the effects of antibacterial finishes on dyed cotton knitted fabrics
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The main objective of the research was to obtain antibacterial and antifungal effects in case of dyed cotton knitted fabrics. In addition to antibacterial properties, other effects of the antibacterial treatment on the dyed fabrics were investigated: the amount of metal bonded on fibre, the chromatic parameters, and the dye fastness. During the finishing process, the samples were subjected to several treatments, as: preparation for dyeing, pre-treatment with chitosan, dyeing with Direct Green 26 dye. In order to provide dyed materials with antibacterial properties, the samples have been treated, in different conditions, with different concentrations of silver nitrate (AgNO3) and zinc sulphate (ZnSO4) solutions. After the finishing process, the samples were tested against several microbial organisms: bacteria (gram positive and gram negative) and fungi. Due to their antimicrobial activity, both chitosan and metal salts have been taken into consideration in the research. Fourier trans...
Enhancing antimicrobial properties of dyed and finished cotton fabrics
Carbohydrate …, 2009
1,2,3-Benzothiazole-7-thiocarboxylic acid-S-methylester (commercially known as Actigard ® AM-87) was utilized to impart cotton fabric durable antimicrobial properties. Finishing treatment was carried out under a variety of conditions. The latter were included, effect of pH, ...
ECO-FRIENDLY DYEING AND ANTIBACTERIAL TREATMENT OF COTTON
Berberine, a natural cationic dye with excellent antibacterial activity, was extracted from the roots of Berberis vulgaris and applied on cotton fabric. Naturally, there is no affinity of cationic dyes for cotton fiber. To improve the dyeability of cotton fiber, plasma treatment and acrylic acid grafting, using plasma technology for pretreatment, were employed. The grafting of acrylic acid was confirmed using ATR-FTIR. The effect of pretreatments on the dyeability of cotton was evaluated. The antibacterial activity of the dyed samples was evaluated according to AATCC test method 100-2004. The samples dyed after acrylic acid grafting showed the highest antibacterial activity.
Simultaneous dyeing and antibacterial finishing for cotton cellulose using a new reactive dye
Carbohydrate Polymers, 2013
A new bifunctional reactive cationic dye containing bis (monochlorotriazine/quaternary ammonium) reactive cationic system was synthesized. This dye and its monofunctional analogue were studied for simultaneous dyeing and antibacterial finishing of nylon fabric using exhaust method. Relatively high exhaustion and total dye fixation were achieved at pH 5 and 100°C for both dyes. The bifunctional dye exhibited higher levels of exhaustion and fixation efficiency compared to the monofunctional dye. Antibacterial activities of the dyed samples at different concentrations of both dyes were studied against gram positive (Staphylococcus aureus) and gram negative (Escherichia coli) bacteria. The dyed samples for both dyes are durable to washing and exhibited antibacterial activity after 10 times wash. The presence of the additional quaternary ammonium group in the bifunctional reactive cationic dye promotes a higher antibacterial activity on nylon 6 fabric compared to the nylon fabric dyed with the monofuncional dye. The dyeings exhibited good to high fastness properties.
Recently antibacterial colorants are most important research topic to the researchers. With high biodegradability, low toxicity, green chemistry and having potential application they exhibit a great impact on the textile dyeing and finishing industry. Natural colorants from plant sources either extraction or synthesis have been recently revealed as novel agents in imparting multifunctional properties to textiles such as antimicrobial, insect repellent, deodorizing, even UV protection. Many colorants, whether natural or synthetic, possess some inherent functions in addition to their coloring attribution. These properties can be utilized in textile dyeing processes to bring the particular functions to textiles in various textile industries. In other words, dyeing textiles with these colorants can combine dyeing with having a functionality finishes, a greener process than current separated wet treatments in terms of reduced generation of waste water and consumption of energy. Recently there has been a revival of interest in the use of natural dyes in textile coloration. This is a result of the stringent environmental standards imposed by many countries in response to the toxic and allergic reactions associated with the use of synthetic dyes. The aim of this review compilation is to give an overview on the main compounds used today for coloration of textile materials seeking for as antibacterial functionalization based on an evaluation of scientific publications, potential perspective of microbes on the environment and human health were
Processes
In this study, pomegranate peel extract was used to dye cotton fabrics. Generally, natural dyes have low affinity for cellulosic fibers and therefore need treatment for attachment. Air atmospheric plasma was applied to lower the concentrations of mordants needed and enhance dyeability. The outcomes showed that the residual concentrations of metallic ions decreased when applying the plasma treatment. ATR-FTIR and SEM analysis were performed to evaluate the effect of plasma modification on the surface chemistry and topography of the cellulosic fibers. The traces of metals released from finished fabric were quantified using ICP OES spectrometry. Color fastnesses (wash, rubbing and light) were evaluated to assess the mordanting step effect and the durability of the color. All tested fastnesses were good to very good. The concentrations of metal ions in finished fabrics were 32.4 for Fe, 0.28 for Al, 0.29 for Cr and 1.21 for Cu. Plasma treatment can be considered an efficient strategy to...
Determination of Antimicrobial Activity of the Dyed Silk Fabrics with Some Natural Dyes
In this study, silk fabric is dyed with natural indigo. Dyed silk fabric with natural indigo was cut in the 20x20 cm 2 size. Excluding a fabric, all fabrics were mordanted in the same percentage with alum metal (KAl(SO 4) 2 .12H 2 O). Then, silk fabrics for green color dyeing are dyed separately with weld (Reseda luteola), gall oak (Quercus infectoria Olivier) and together weld (Reseda luteola) and gall oak (Quercus infectoria) in different percentage. Antimicrobial functionality of the twenty seven silk fabrics is established. Tests were conducted against the Staphylococcus aureus ATCC 6538. The results of the counting test showed more reduction of survival Staphylococcus aureus in dark-colored fabric. The number of survival microorganism was determined by counting the colonies as colony-forming unit (CFU/ml) and reduction rate of bacteria was calculated. Coloring compounds and their percentages in the natural dyed silk fabrics are detected by HPLC-PDA (high performance liquid chromatography with diode array detection). Colour measurement is done of the dyed silk fabrics by CIEL*a*b* spectrophotometer.
TEXTILE & LEATHER REVIEW , 2022
Nowadays according to more attention to natural products, the development of research on this issue seems necessary. Many plants are known around the world to have antibacterial, antimicrobial, and antifungal properties. By using those plant compounds, antibacterial, antimicrobial, and fungal properties can be created in textiles. Textiles are one of the unavoidable requirements that all human beings use abundantly in their lives. In the natural dyeing process, the use of some medicinal plant compounds resulted in antibacterial, antimicrobial, and antifungal properties. In this study, medicinal plants such as thyme, clove, marjoram, lavender, wormwood, and espand were studied for antibacterial and antimicrobial properties on textiles. The antibacterial property of mordanted and dyed wool & cotton yarns were tested against Escherichia coli (Gram-negative), Staphylococcus aureus (Gram-positive), and Candida albicans microbe for cotton. The range of colour developed on dyed materials was evaluated in terms of (L*, a*, b*) CIE LAB coordinates and the dye absorption concentration on the yarns was studied by using K/S values. Also, fastness tests on dyed samples for light and washing fastness were carried out. The experimental results showed that the examined plants, in addition to creating antimicrobial and antibacterial properties on wool and cotton yarns, can be used as a dye to produce a durable yellow shade. The dyeing fastness of applied dyes was acceptable. Aloe vera, which has a polyphenolic structure, was used to increase dyeing fastness and durability of antibacterial activity against gram-negative and gram-positive bacteria. The property was created to maintain its durability for several washed cycles.