Effects of additives on the dyeing of cotton yarn with the aqueous extract of Combretum latifolium Blume stems (original) (raw)
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Jurnal Rekayasa Proses
A B S T R A C TEfforts to substitute synthetic dyes on fabrics for natural dyes are currently increasing. Research and innovation are extremely needed to support those attempts so that the quality of natural dyes is more competitive than synthetic dyes. This study aims to optimize the dyeing parameters of cotton fabrics using natural dye extracts derived from the barks of Tegeran (Cudrania javanensis), Merbau (Intsia bijuga), Tingi (Ceriops tagal), and Jambal (Peltophorum pterocarpum), as well as Jolawe (Terminalia bellirica) fruit peel. Varied dyeing parameters included dye concentration, dyeing time and temperature, and material to liquor ratio (MLR). The fixative solutions used were alum, lime, and iron (II) sulfate. The optimized parameters were based on the values of color depth and evenness, measured colorimetrically. Furthermore, the obtained results of the dyeing process under optimized conditions were analyzed for color quality by measuring color coordinates as well as the ...
Additive effects on cotton dyeing with dye extract from achiote seeds
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Cotton yarns have been pretreated with the additives, such as chitosan, microcrystalline chitosan, quaternized chitosan &aqueous extract from the fruit of Diospyros mollis Griff, as well as with the commercial formaldehyde-free cationic fixingagent (Sera® Fast C-NC) & alum (post-mordanting), and their dyeing fastness properties are studied. These treated cottonyarns are then dyed with the annatto dye extract from Bixa orellana L. (Achiote) seeds and tested for different propertiesincluding K/S value, light fastness, and wash fastness. Pre-treatment of cotton yarn with chitosan or microcrystallinechitosan solution (together with glyoxal cross-linking) or quaternized chitosan, or Sera® Fast C-NC before dyeing, shows abetter color depth (K/S) and improved wash fastness properties in comparison to yarn with alum post-mordanting and theuntreated cotton yarn. Improved light fastness is also obtained on inclusion of the anti-oxidant ascorbic acid in the posttreatmentprotocol. These additiv...
Journal of Applied and Natural Science
Natural dyes and eco-friendly finishing of textile fabrics is gaining popularity because of the consciousness of people in saving the ecology. Widely available resources in India have encouraged researchers in experimenting on extraction and application of dyes for textile colouration. The aim of the present experiment was to standardize a protocol for optimization of pre-treatment, mordanting and dyeing of cotton yarn with African marigold flower petals. Myrobolan, pomegranate rind and tamarind hull were utilized in different concentrations for pre-treatment. Effect of different mordants and pre-treatment concentrations on colour strength (K/S, L, a* and b*) parameters of the cotton yarn is was studied. Optimised pre-treatment concentrations, mordants and dyeing techniques on colour fastness parameters are also presented. Myrobolan followed by pomegranate rind pre-treatment produced darker and even shades on cotton yarns. Metallic salts viz., Stannous Chloride, Copper Sulphate and ...
Journal of Natural Fibers, 2019
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Dyeing of cotton yarn with five water soluble fungal pigments obtained from five fungi
Fibers and Polymers, 2010
The present study aimed to assess the potentiality of water soluble fungal pigments for dyeing on cotton yarn. Five different shades of pigments were extracted from Monascus purpureus, Isaria farinosa, Emericella nidulans, Fusarium verticillioides, and Penicillium purpurogenum using ethanol. Maximum concentration of pigment was obtained from Monascus purpureus (red, 25.02±1.6 UA) followed by Penicillium purpurogenum (yellow, 23.05±0.3 UA). The optimum dyeing condition was observed at a pigment concentration of 1 gram, pH 5, temperature 80 °C, time duration 90 min, and a liquor ratio of 1:30 was found to be the optimal for dyeing. Maximum uptake of 80 % was achieved with Monascus purpureus red pigment. Moreover, the effect of mordant in dyeing was evaluated by different mordanting methods. A strong variation in shade and color depth could be achieved by using pre-mordanting method with alum and ferrous sulfate giving better wash fastness properties when compared with post-mordanting or without a mordant.
India has a very rich diversity and plantkingdom is certainly a treasure house of diverse natural products. One such product from nature is the dye. In this study, natural colorants mainly flavonoids and carotenoids present in the Marigold flower (TageteserectaL.) were extracted using Soxhlet extraction method and other conventional techniques under different operating conditions. Spectrophotometric method based on the Aluminium complex formation was used for the determination of total flavonoids concentration in the extracts of different solvents used. The dye potential of the colorants obtained from the marigold was evaluated by coloring pure cotton fabrics and the yarns of pure cotton and wool. Various metal salts were used as mordants to set extracted dye on the fabrics and yarns. Study about fastness tests of dyed clothes was undertaken. The color shade differences, L*, a*, b*, ∆E values and K/S values were estimated using CCM software (GretagMacbath 7000 A º spectrophotometer). The maximum strength of the dye was found in the Ethanol-Water mixture (70:30 v/v) as a solvent. The surface color of the dyed fabrics and yarns was not affected by washing. The different color shades were obtained for various mordants used. Most of the mordants showed higher K/S value due to their ability to form coordination complexes. Good light fastness, wash fastness and rubbing fastness were observed in case of fabrics mordanted with ferrous sulphate. The relative colour strength of the dye was found to be more in case of cotton clothes mordanted with ferrous sulphate. These findings reveal that Tageteserecta L. can serve as a potential source of natural colorant which can be used in textile industry for dyeing purpose.A GC-MS analysis was done to identify the compounds present in the dye extract.
EXTRACTION OF NATURAL DYES FROM SELECTED PLANT SOURCES AND ITS APPLICATION IN FABRICS
TJPRC, 2013
Natural dyes from plants have been given much interest in recent years due to the threat and harmful effects arised by synthetic dyes and environmental awareness created by researchers. In this study methanolic extract of seven different plants were considered ie.,, Aloe vera, Azadirachta indica, Bixa orellana, Curcuma longa, Punica granatum, Quercus infectoria, and Thymus Vulgaris extracts were dyed to the scoured cotton fabrics. These fabrics were mordanted with Alum acetate/ acetic acid for fastening of the imparted colours. The extracts were also qualitatively analysed for the major phytochemical components present in it. All the extracts were found to have the bioactive components, Tannins, Saponins, and terpenoids. The dyed cottons fabrics were observed with different shades of colour and also its durability and colour fastening are tested.
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.
Some of the synthetic dyes and mordants are harmful to the environment. The aim of this research work was to study the dyeing of cotton substrates using extracts from wild leek (Allium burdickii). The bark of mango tree was used as a mordant. The pre-mordanting method was used and four treatments were investigated with respect to exhaustion of the dye. These were: temperature, time, pH and concentration of mordant. Dye exhaustion for 27 experiments was investigated by comparing the relationship between the independent and dependent variables. The regression model obtained from the interactions was significant with an R 2 value of 0.611. The effect of pH was insignificant while all the other three variables significantly influenced exhaustion of dye. The optimised conditions for temperature, time and concentration of mordant were: 60oC, 90 minutes and 28.18% owf, respectively. The fabrics showed acceptable fastness properties ranging from 2/3-4/5 (fair to very good), 1.2-4 (slightly considerable to noticeable) and 4-5 (very good to excellent) for wash, perspiration and rubbing fastness, respectively.