Search
20 articles for “Natural dyes”
-
Optimizing Dyeing Processes for Nylon: A Study onUltrasonic and Natural Dye Application
Abstract: This study focuses on the application of natural dyes, specifically those derived from onion (Allium cepa) extracts, for dyeing nylon fabric, while assessing the impact of different mordants, including potassium dichromate, copper sulfate, and alum. The research explores the effectiveness of High Temperature High Pressure dyeing techniques to enhance dye uptake and color fastness. Natural dyes, traditionally viewed as less effective than synthetic counterparts, are being reevaluated for their eco-friendly …
Published in International Journal of Green Chemistry · Vol. 10, Issue 2, 2024 · pp. 9–15 Read article
-
Chemistry of Mehandi (Henna): Natural Dyeing Mechanism, Composition, and Applications
Abstract: Mehandi (Henna), derived from the plant Lawsonia inermis, is one of the oldest natural dyes used for body art, hair coloring, and traditional medicinal applications. Beyond its cultural significance, henna represents an interesting example of applied organic chemistry, where naturally occurring molecules interact with biological tissues to produce long-lasting coloration. The primary coloring constituent of henna is Lawsone (2-hydroxy-1,4-naphthoquinone), a naphthoquinone compound responsible for the characteristic reddish-brown stain. When henna …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 39–45 Read article
-
Extraction, Characterization and Tissue Culture of Plant Derived Indigo From Indigofera tinctoria-Preliminary Studies
Abstract: Indigo is the most preferable of all natural dyes for its high demand worldwide because of the blue denim. Natural Indigo dye is eco friendly, non carcinogenic and do not pose hazard to the environment as compared to synthetic dyes. Although a growing demand for naturally derived indigo dye exists, with increased use of synthetic dyes the plant species is now on the verge of being endangered. Plant tissue culture …
Published in International Journal of Agrochemistry · Vol. 4, Issue 2, 2018 · pp. 53–58 Read article
-
Treatment of Dyeing Waste Water by Using Garlic Extract as a Natural Coagulant
Abstract: Coagulation is the process of removal of very fine particles by forming bigger flocs in the water. But this process is not much efficient in waste water treatment as in the treatment of drinking water. This is because of adding chemical coagulant for the treatment of waste water. Use of chemicals in treatment of dyeing waste water causes formation of non-biodegradable sludge. To avoid this we made an attempt in …
Published in International Journal of Water Resources Engineering · Vol. 1, Issue 1, 2015 · pp. 23–30 Read article
-
Nanostructured Carbon Aloe vera based DSSC Solar Cell Using Screen Printing Technology
Abstract: Today every nation faces vitality emergencies; so, to conquer it, various arrangements are given to advance towards sun-based energy harvesting which is rich and allowed to utilize. The presented study aims to give a simple synthesis technique for mass production of DSSC from working principles to the first commercial use. DSSC converts solar energy into electricity with help of energy harvesting materials like natural dye which makes it more sustainable …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 6, Issue 2, 2020 · pp. 52–59 Read article
-
Photo-Catalytic Degradation of Dyes Using Graphene Oxide–Dithizone Composite
Abstract: Graphene oxide–dithizone (GO–DTZ) composite was successfully synthesized through the copolymerization of graphene oxide and dithizone to develop an efficient photocatalytic material for wastewater treatment. The dithizone polymer was prepared using a 1:2 molar ratio, while graphene oxide was synthesized via the modified Hummers’ method to obtain highly oxidized graphene sheets with abundant oxygen-containing functional groups. The GO–DTZ nanocomposite was fabricated by ultrasonically dispersing graphene oxide with the synthesized dithizone polymer …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 2, 2026 · pp. 46–53 Read article
-
Studies on Qualitative and Quantitative analysis of Phytochemicals from Petals and Leaves of Tagetes erecta
Abstract: Tagetes erecta is commonly known as marigold, herbaceous and perennial plant. It belongs to Asteraceae family. It is widely cultivated, and many cultivars are used as ornamental plants in gardens. Antioxidants are highly present in flowers. It's also used as a natural textile dye. It contains various phytochemicals and extracted with different solvents by qualitative and quantitative analysis. In this analysis different solvent extracts are used for estimation of phenolics, …
Published in International Journal of Plant Biotechnology · Vol. 8, Issue 1, 2022 · pp. 8–11 Read article
-
Study on the Possibility of Ginger Juice Extract in Methyl Orange Decolorization
Abstract: In this research work, the authors investigated the potential of ginger juice as a natural and eco- friendly agent for the decolorization of an azo dye under varying pH conditions. Specifically, the study focused on the probability of dye decolorization at pH 6 and pH 8 to understand the influence of acidic and alkaline environments. Additionally, the effect of hydrogen peroxide (H₂O₂) as a co- treatment agent was assessed. For …
Published in International Journal of Plant Biotechnology · Vol. 11, Issue 1, 2025 · pp. 26–33 Read article
-
Characterization of Tesu Colour Dyeing on Excel Fibre and to Study the Effects of Caustic Treatment
Abstract: Tesu, the natural flower colour, was extracted in such way that the maximum colour yield can be obtained on textile fibre. The extracted Tesu colour was applied on excel, the third generation regenerated cellulosic fibre, at different pH, time, temperature and electrolyte concentration. The characterisation of Tesu colour dyeing on excel fibre was developed. Further, the effects of caustic soda treatment on dyeability of excel fibre with natural Tesu colour …
Published in International Journal of Environmental Chemistry · Vol. 2, Issue 1, 2016 · pp. 20–25 Read article
-
Redox system initiated improved low-temperature colouration of real silk with metal-complex dyes for energy conservation
Abstract: Silk has always been the symbol of royalty due to its lustrous appearance and peach like softness. It can be dyed in bright shades with the available natural and many synthetic dyestuffs. The slight cationic character of silk makes it possible to be dyed with anionic synthetic dyes such as acid, metal complex, reactive and selected direct dyes. The main objective of colouration of a textile fibre should be to …
Published in International Journal of Green Chemistry · Vol. 2, Issue 1, 2016 · pp. 9–17 Read article
-
WATER MANAGEMENT IN TEXTILE PROCESSING INDUSTRY
Abstract: With the increasingly important requirement for textile manufacturers to decrease pollution in textile production, the use of enzymes in the chemical processing of fibres and textiles is rapidly gaining wider recognition because of their non-toxic and eco-friendly characteristics. They can be safely used in a wide selection of textile processes such as de-sizing, scouring, bleaching, dyeing and finishing, where the alternatives are very harsh chemicals whose disposal into the environment …
Published in International Journal of Green Chemistry · Vol. 4, Issue 1, 2018 · pp. 7–12 Read article
-
Waste Water Treatment by Using Garlic Extract as a Natural Coagulant
Abstract: Coagulation is the process of removal of very fine particles by forming bigger flocs in the water. But this process is not much efficient in waste water treatment as in the treatment of drinking water. This is because of adding chemical coagulant for the treatment of waste water. Use of chemicals in treatment of dyeing waste water causes formation of non-biodegradable sludge. To avoid this we made an attempt in …
Published in International Journal of Water Resources Engineering · Vol. 2, Issue 2, 2016 · pp. 24–31 Read article
-
Synthesis and Characterization of Poly(vinylpyrrolidone) / Starch / Dimethylacrylamide Hydrogel by Gamma Radiation and Its Application in Basic Fuchsin and Methyl Orange Removal
Abstract: Gamma radiation was used to create a number of PVP/Starch/Dimethylacrylamide (PSD) based hydrogels. Investigated were the effects of several parameters, such as radiation dose, material composition, and pH, on the characteristics of hydrogels, such as gel content and swelling behavior. Radiation doses ranged from 10 to 25 kGy, and 10 kGy was determined to be the ideal dose. Investigations on the impact of dimethylacrylamide (DMA) composition on swelling were investigated. …
Published in International Journal of Polymer Science and Engineering · Vol. 9, Issue 2, 2023 · pp. 1–20 Read article
-
Attempt On Utilization of Aqueous Solution of Eurhodin Treated Mulberry Leaves for the Qualitative Cocoons and Silk Filament in silkworm, Bombyx mori (L) Races: Bivoltine Cross Breed [(CSR6 x CSR26) x CSR2 x CSR27)] and multivoltine crossbreed [(PM x CSR
Abstract: The vital stain, the Eurhodin, the neutral red dye was used for treating the leaves of mulberry. Hundred grams of fresh mulberry leaves were kept immersed in a liter of aqueous solution of eurhodin powder with hundred milligram per liter (100 ppm) strength for half an hour. Such treated mulberry leaves were drained off completely; fed daily to the fifth instar silkworm larvae of bivoltine Cross Breed [(CSR6 x CSR26) …
Published in International Journal of Green Chemistry · Vol. 4, Issue 2, 2018 · pp. 1–16 Read article
-
Studies of Nano-catalyst
Abstract: Nano-catalysts are studied in this article to compose single allocate transitional or novel atom on substrate in place of usual nano-configured atoms aligned to Pt, Pd, Ru, Rh and Ir. Acid to base proposition subjected to form stable catalyst composes from transition metals in place from expensive novel metals. In novel metal nano-cluster catalyst compose has selected scheme at rest with no or reverse consequence to give rise well defined …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 7, Issue 1, 2021 · pp. 13–18 Read article
-
A Chemical Thorn in the Heart of Flowers: An Investigation into Chemical Preservation of Commercial Flowers and Its Health Implications
Abstract: The increasing demand for fresh flowers during festive occasions, religious ceremonies, and wedding seasons has led to the widespread use of chemical preservation techniques throughout the floral supply chain. Flowers – such as jasmine, rose, chrysanthemum, and marigold – are traditionally valued for their natural fragrance, freshness, and aesthetic appeal. However, to meet market demands and extend their commercial value, various chemical agents are increasingly applied to delay senescence and …
Published in International Journal of Green Chemistry · Vol. 12, Issue 2, 2026 · pp. 1–18 Read article
-
In Vitro Evaluation of Bioremediation Capacity of a Commercial Probiotic, Bacillus clausii, for Chromium (VI) and Lead (II) Toxicity
Abstract: Heavy metals cause disastrous effects on any living organisms. Probiotics have the ability to reduce metal toxicity. Commercial probiotics having bioremediation capacity can use these bacteria as an alternative to conventional remediation methods. The bioaccumulation of heavy metals including chromium (VI) (Cr [VI]) and lead (II) (Pb [II]) causes fatal toxicity in humans. Some naturally occurring bacterial species, such as Bacillus and Pseudomonas, contribute their role in bioremediation of these …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 4, Issue 2, 2018 · pp. 1–16 Read article
-
Industrial Effluent Pollution and Sustainable Treatment Strategies: An Analytical Approach
Abstract: Industrialization has significantly propelled economic development across the globe, but it has also led to the generation of vast quantities of hazardous effluents that pose serious threats to the environment and public health. Industrial effluents, depending on their origin, often contain high levels of chemical oxygen demand (COD), biological oxygen demand (BOD), total dissolved solids (TDS), toxic heavy metals, dyes, solvents, pharmaceutical residues, and other harmful substances. This research paper …
Published in International Journal of Green Chemistry · Vol. 12, Issue 1, 2026 · pp. 20–25 Read article
-
REVIEW ON PREPARATION & APPLICATIONS OF THIADIAZOLE DERIVATIVES
Abstract: This review has touched on thiadiazole derivatives as it is a basis for the synthesis of many drugs, industrial compounds, chemical dyes, pharmaceuticals and life substances, and as a link to many cyclic reactions and is produced in vitro methods for the hydrolysis of the amine-thiol compounds such as thiosemicarbazide and hydrazo-thion, among others. On the different methods of preparation for thiadiazole derivatives, its reactions and its various biological applications., …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 19–30 Read article
-
Future Outlook of Green Chemistry
Abstract: Chemistry brought about medical revolution till about the middle of 20th century in which drugs and antibiotics were discovered. The world’s food supply also increased immensely due to the innovation of hybrid varieties, enhanced methods of agriculture, better seeds, and use of herbicides, fertilizers, pesticides and insecticides. The quality of life on earth became much better due to the discovery of dyes, plastics, cosmetics and other materials. Soon, the ill …
Published in International Journal of Green Chemistry · Vol. 3, Issue 1, 2017 · pp. 27–32 Read article