scholarly journals Extraction and Optimization of Natural Dye from Hambo Hambo(Cassia singueana)Plant Used for Coloration of Tanned Leather Materials

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Taame Berhanu ◽  
Saminathan Ratnapandian
Keyword(s):  
Aloe Vera ◽  
Natural Dye ◽  
International Standards ◽  
Bark Extract ◽  
Color Fastness ◽  
Fastness Properties ◽  
Visible Spectroscopy ◽  
Color Strength ◽  
Uv Visible ◽  
Temperature Time

This investigation was aimed at introducing natural dye extracted from the bark ofCassia Singueanaplant for dyeing chrome tanned sheep skin crust leather. The colorant was extracted by aqueous extraction and its strength evaluated using UV-Visible spectroscopy. The extraction with the highest strength (3.9 atλmaxof 400 nm) was obtained at temperature of 95°C, concentration of 60 g/l, and time of 60 minutes. The possibility of using aloe vera juice and mango bark extract as natural mordants for leather coloration was investigated. Dyeing was conducted with and without mordant using different combinations of temperature, time, pH, and concentration of mordants. All three mordanting techniques were evaluated. The color strength(K/S), CIEL⁎a⁎b⁎values, and fastness properties (light, rubbing, and perspiration) of dyed leather samples were evaluated using appropriate instruments and according to international standards. Majority of samples exhibited that fastness result was in the range of good-excellent. Significantly better color fastness was obtained in case of leather samples premordanted with aloe vera. This study leads to the conclusion that dye extracted from bark ofCassia singueanacan be used as colorant for tanned leather with the selected natural mordants.

Analysis and Study of Effect of Natural Dye From Bombax malabarica on Silk Fabric

2019 ◽  
Vol 38 (1) ◽  
pp. 49-58
Author(s):  
V. Narayana Swamy
Keyword(s):  
Reduction Rate ◽  
Operating Conditions ◽  
Natural Dye ◽  
Color Fastness ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Dye Uptake ◽  
Color Strength ◽  
Cielab System ◽  
Silk Fabrics

The current study deals with the extraction of natural dye from Bombax malabarica flowers, readily available by-product. Dye was extracted under different operating conditions such as time (60–90 min), temperature (90–95 °C), and pH 9. The dyed samples were subjected to CIELAB system using Gretag Macbeth Color Eye 7000A Spectrophotometer for the evaluation of color strength and L*a*b* C and H values. To improve the dye uptake and color fastness, pre and postmordanting was carried out using alum, tannic, and tartaric acid mordants. Dyed silk fabrics were tested for its color fastness when subjected to light, washing, and rubbing. Fastness properties of dyed silk fabric samples were found considerably good. Mordanted silk fabric samples showed increase in dye uptake resulting in high color strength and better fastness properties. The dyed silk samples displayed good antimicrobial activity (reduction rate: 48%) against the bacteria Escherichia coli and (reduction rate: 55%) against Staphylococcus aureus.

scholarly journals Textile fabric's and dyes

2021 ◽  
Vol 69 (3) ◽  
pp. 47-59
Author(s):  
Touseef Younas ◽  
Noor Tayyaba ◽  
Afsheen Ayub ◽  
Shaukat Ali
Keyword(s):  
Natural Dye ◽  
Synthetic Dyes ◽  
Color Fastness ◽  
Fastness Properties ◽  
Color Strength ◽  
Dyeing Properties ◽  
Synthetic Fibers ◽  
Textile Fabrics ◽  
Different Types ◽  
Dye Industry

Textiles sectors serve up the outfit needs of every day and this industry plays a major role in the economy of the country. All the textile fabrics are either natural or synthetic fibers or a blend of both. Different types of dyes are used for different kinds of fabrics depending on the nature and type of the fabric to be dyed, to impart color, modify the fabric to make them more attractive and astonishing. In short, the introduction of synthetic dyes resulted in the demise of a massive natural dye industry. So, it's necessary to classify the different types of dyes with the increase in the number of types and varying dyeing properties so that this would be a best way to understand the different types of dyes, their applicability, fastness and other properties. In this article, a source for the beginners is provided to understand different kind of the textile fabrics and their importance as well as their drawbacks, dyes and their various types, their interaction with the corresponding fabric, their color strength and color fastness properties.

Utilization of Old Coconut (Cocos nucifera) Husk Waste as Potential Source of Natural Dye and its Dyeing Properties on Cotton Cloth

2021 ◽  
Vol 882 ◽  
pp. 280-286
Author(s):  
Aris Sugih Arto Kholil ◽  
Husniyyah Ulfah Adani ◽  
Annisa’ Mufsihah ◽  
Achmad Chafidz
Keyword(s):  
Cocos Nucifera ◽  
Natural Dye ◽  
Natural Dyes ◽  
Cotton Cloth ◽  
Color Fastness ◽  
Fastness Properties ◽  
Binding Agent ◽  
Binding Agents ◽  
Colored Cotton ◽  
Brown Color

Coconut husk is considered waste and its fibers can be used as a source of natural dyes for textiles. The objective of this research is to obtain natural dyes from old coconut (Cocos nucifera) husk waste fibers through the extraction process. Brown color was produced in the liquid-liquid extraction method. The brown color natural dyes were then used to dye cotton cloth. Three different binding agents were used during the fixation process, i.e. tunjung, naphtol salt, and alum. The coloring results of the natural dye on the cotton cloth were as follow: with alum binding agent the resulting color was light brown (cream), whereas tunjung binding agent produced a greenish brown color, and using napthol salt binding agent produced yellow color. The colored cotton cloths were tested for their color fastness properties against rubbing, soap washing, and sunlight exposure. The measurement scale used was grey scales, which was used to evaluate the color change (color fading) and color staining (color transfer) during color fastness testing. In general, based on the results, the colored cotton cloth using alum as binding agent showed better color fastness properties against rubbing, soap washing, and sunlight exposure compared to the ones using tunjung and naphtol salt binding agents.

Dyeing of Cotton Fabric with Natural Dye Extracted from Egyptian Cotton Leaves

2021 ◽  
Vol 8 (1) ◽  
Keyword(s):  
Natural Dye ◽  
Fastness Properties ◽  
Light Fastness ◽  
Color Strength ◽  
Cotton Variety ◽  
Dyeing Performance ◽  
Dyeing Method ◽  
Exhaust Dyeing ◽  
Egyptian Cotton ◽  
Good Price

Cotton leaves have been used to extract natural dye for dyeing of Egyptian cotton variety Giza 86 fabric and its blend with polyester 50:50, using different mordants such as iron (II) sulfate, copper (II) sulfate, and alum. The exhaust dyeing method was utilized using the pre-mordant technique. It is observed that both fabric samples can be dyed in different colors and depth of shades with Cotton leaves dye. Iron (II) sulfate ensures the best light fastness. Improved light fastness is obtained using abovementioned lower amounts of iron (II) sulfate and copper (II) sulfate. Alum is found to be less effective than iron (II) sulfate and copper (II) sulfate on the light fastness. As a novel alternative and potential natural dye, Cotton leaves extract solution can be used to get various colors and shades with satisfactory fastness properties. The mordanted and un-mordanted fabric samples were tested for their dyeing performance in terms of color parameters K/S, (L*), a*, b*, (C*) and (H*), and fastness properties (wash, perspiration, light and rubbing fastness) were studied. The samples showed high color strength, and high fastness properties. These results are very important for industrial application and with the production of a natural dye as an inexpensive source from cotton leaves as a by-product. Another objective is to increase the production of eco-textile garments with a good price for the Egyptian customers.

Natural Dye from Garcinia dulcis (Roxb.) Kurz Bark and Application on Silk Fabric by Using Pad-Batch Dyeing: A Study on Mordant Concentrations Efficiency

2014 ◽  
Vol 884-885 ◽  
pp. 216-219
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Nattadon Rungruangkitkrai ◽  
Nitaya Tubtimthai ◽  
Nuttanan Sasivatchutikool ◽  
Nattaya Punrattanasin
Keyword(s):  
Batch Process ◽  
Natural Dye ◽  
Bark Extract ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Yellow Colour ◽  
Light Yellow ◽  
Colour Strength ◽  
Dye Extraction ◽  
Silk Fabrics

The dyeing and fastness properties of silk fabric dyed with natural dye extraction from the bark of Garcinia Dulcis (Roxb.) Kurz by the pad-batch process was studied. The effect of dyes at different mordant concentration levels on their colour strength was also investigated. Silk fabrics dyed with Garcinia Dulcis (Roxb.) Kurz bark extract showed a pale yellow shade, while those dyed with alum and stannous chloride bright yellow and light yellow colour, respectively. Silk substrates dyed with CuSO4 gave a yellowish green colour, while those dyed with FeSO4 had a dark brown colour. The fastness properties showed fair to good rating, whereas the colour fastness to perspiration was at a poor level.

Pigment Printing of Natural Dye from Red Mangrove Bark on Silk Fabrics

2011 ◽  
Vol 695 ◽  
pp. 279-282 ◽  
Author(s):  
Monthon Nakpathom ◽  
Buppha Somboon ◽  
Nootsara Narumol
Keyword(s):  
Textile Industry ◽  
Environmental Concern ◽  
Natural Dye ◽  
Synthetic Dyes ◽  
Color Fastness ◽  
Color Strength ◽  
Red Mangrove ◽  
Silk Fabrics ◽  
Thickening Agents ◽  
Significant Attention

Recently, the use of natural dyes in textile industry has gained more significant attention owing to environmental concern on the use of certain toxic synthetic dyes. In this research, pigment printing of silk fabrics with natural dye from red mangrove bark has been investigated. Three types of thickening agents, i.e., synthetic thickener, sodium alginate and tex gum were used to prepare printing pastes. In addition, the effects of dye concentration and steaming time during fixation step on color strength in term of K/S values were evaluated. The results on color fastness to washing and light as well as stiffness of the printed fabrics were also reported.

Dyeing Properties and Color Fastness of Chitosan Treated Cotton Fabrics with Thian King Leaves Extract

2015 ◽  
Vol 749 ◽  
pp. 89-93 ◽  
Author(s):  
Pornpen Morakotjinda ◽  
Walaikorn Nitayaphat
Keyword(s):  
Tensile Strength ◽  
Cotton Fabrics ◽  
Natural Dye ◽  
Test Method ◽  
Color Fastness ◽  
Fastness Properties ◽  
Dye Uptake ◽  
Whiteness Index ◽  
Chitosan Concentration ◽  
Finishing Agent

Chitosan, a naturally available biopolymer, was used as finishing agent to increase dye uptake and color fastness of cotton fabrics. Thian King leaves extract a natural dye was applied on cotton fabrics after chitosan treatment. The whiteness index and tensile strength of samples were measured to study the effect of chitosan application. The color of dyed samples was investigated in term of the colorimetric parameters (L*, a*, b*, ∆E) and K/S values. The color fastness to washing, rubbing and light of dyed samples was determined according to AATCC test method. The results showed that the chitosan concentration enhances the whiteness index and tensile strength of the treated cotton fabrics. Chitosan treatment showed increase dye uptake of cotton fabrics. Fastness properties of these to washing, rubbing and light have also been discussed.

Chitosan as a Thickener for Direct Printing of Natural Dye on Cotton Fabric

2012 ◽  
Vol 610-613 ◽  
pp. 3394-3397 ◽  
Author(s):  
Jiraporn Choomchit ◽  
Jantip Suesat ◽  
Sae Be Porntip
Keyword(s):  
Sodium Alginate ◽  
Cotton Fabric ◽  
Natural Dye ◽  
Color Fastness ◽  
Fastness Properties ◽  
Direct Printing ◽  
Chitosan Concentration ◽  
Color Yield

Development of chitosan as a thickener for direct printing of natural dye on cotton fabric was investigated. Chitosan was applied as a thickener at various concentrations and its effect on the print properties was determined in comparison with the typical printing thickener, sodium alginate. The results exhibited that chitosan affected the fabric properties by increasing fabric yellowness and stiffness. However, with increasing chitosan concentrations, the yellowness reduced only marginally. Direct printing on cotton fabric with 3% Natural Chestnut at varying chitosan concentrations showed that the optimum chitosan concentration for the printing was at 3%w/v, being equivalent to the viscosity of 17,800 mPa. The 3%w/v chitosan imparted the ultimate color yield, print outline sharpness and a minimal dye bleeding on the unprinted area of the fabric. Use of chitosan concentration higher than 3%w/v led to poor print properties on the fabric. The efficiency as a thickener of chitosan was found to be superior to sodium alginate. A high color yield and good color fastness properties on cotton fabric were rendered in the case of chitosan thickener at the same applied concentration with sodium alginate.

Natural dye from Croton urucurana Baill. bark: Extraction, physicochemical characterization, textile dyeing and color fastness properties

2020 ◽  
Vol 173 ◽  
pp. 107953 ◽  
Author(s):  
Patricia Muniz dos Santos Silva ◽  
Ticiane Rossi Fiaschitello ◽  
Rayana Santiago de Queiroz ◽  
Harold S. Freeman ◽  
Silgia Aparecida da Costa ◽  
...  
Keyword(s):  
Physicochemical Characterization ◽  
Natural Dye ◽  
Color Fastness ◽  
Fastness Properties ◽  
Textile Dyeing

scholarly journals Green Synthesis of Silver Nanoparticles using Polyalthia longifolia Stem Bark Extract and its Catalytic Reduction of 4-Nitrophenol

2019 ◽  
Vol 31 (11) ◽  
pp. 2439-2442
Author(s):  
Karuppiah Muthu ◽  
B. Akilandaeaswari ◽  
S. Mangala Nagasundari
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Catalytic Reduction ◽  
Stem Bark ◽  
Bark Extract ◽  
Visible Spectroscopy ◽  
Transmission Electron ◽  
Stem Bark Extract ◽  
Uv Visible ◽  
Polyalthia Longifolia

In this present study, green synthesis of silver nanoparticles (AgNPs) was synthesized from silver nitrate using the reducing agents of Polyalthia longifolia bark extract and applied the catalyst in the reduction/degradation of environmental polluted organic compound in the presence of NaBH4. Initially, the colourless reaction mixture was slowly changed to yellowish brown, UV-visible spectroscopy of surface plasmon resonance centre at 447 nm confirmed the formation of AgNPs. High resolution transmission electron microscopy (HRTEM) clearly identified the spherical shapes nanoparticles with diameters sizes 5-25 nm. This AgNPs has excellent catalyst in the catalytic reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) as compared to the reducing agent of NaBH4 (chemical) and plant extract (natural).

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