scholarly journals Molecular Characterization And Ecotoxicological Evaluation of The Natural Dye Madder And Its Chlorinated Products

2021 ◽  
Author(s):  
Harold S. Freeman ◽  
Tuane C. dos Santos ◽  
Yufei Chen ◽  
Josiane A.S. Vendemiatti ◽  
Adria C. de Oliveira ◽  
...  
Keyword(s):  
Textile Industry ◽  
Degradation Products ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
General Belief ◽  
Daphnia Similis ◽  
Ecotoxicological Evaluation ◽  
Wastewater Disinfection ◽  
Main Component ◽  
Advance Knowledge

Abstract There has been increased interest in the use of natural dyes for textile coloration as alternatives to synthetic dyes, due to the general belief that natural dyes are more environmentally friendly. However, natural dyes have poor affinity for textiles, which can lead to high dye levels in the resultant wastewater. While chlorine treatment has proven to be effective for dye wastewater disinfection and decolorization, this process can also lead to the formation of more toxic degradation products for certain synthetic dyes. On the other hand, little information is available regarding the ecotoxicity of natural dyes and their chlorination products. To advance knowledge in this area, madder was selected due to its historical importance and wide application in the textile industry. Specifically, we sought to characterize the chlorine-induced degradation products of an aqueous madder solution and to assess their ecotoxicity. The main component of the present madder sample was Alizarin (89.8%). Chlorination led to complete decolorization, and 2-hydroxynaphthalene-1,4-dione and phthalic anhydride were identified as key degradation products. Chlorination of madder decreased toxicity to Daphnia similis (microcrustacean) 10-fold and removed the toxicity to Raphidocellis subcapitata (algae), when compared to the parent dye.

Investigating the Potential Use of Papaya Leaf Extract as Natural Dyes in the Textile Industry

2020 ◽  
Vol 991 ◽  
pp. 129-134
Author(s):  
Suharno Rusdi ◽  
Huda F. Maulana ◽  
Nuriaji L. Samudro ◽  
Achmad Chafidz
Keyword(s):  
Textile Industry ◽  
Leaf Extract ◽  
Extraction Process ◽  
Natural Dyes ◽  
Raw Material ◽  
Cotton Cloth ◽  
Synthetic Dyes ◽  
Test Results ◽  
Washing Method ◽  
Solid Liquid

Synthetic dyes are widely used in the majority of the large textile industry. The use of synthetic dyes can cause water pollution from sewage disposal of the textile industry. Some types of synthetic dyes contain heavy metals that are harmful to human health and can damage the environment. With increasing awareness of the current environmental problems, people begin to focus on returning back to natural dyes. These natural dyes can be extracted from various parts of plants, such as leaves, flowers, fruit, wood or stems, and roots. Papaya leaves have the potential to be used as a basic ingredient to make natural dyes due to fairly high chlorophyll content. Therefore, we took the initiative to conduct research on the production of natural dyes from papaya leaf extract. Papaya leaf extract was produced by using a solid-liquid extraction process using two different solvents, ethanol (96%) and n-hexane. From the results of the study, it was found that the most optimum extract results in the extraction process was about 2.20% of the raw material of dried papaya leaves by using ethanol solvent. The prepared cotton cloth was then colored with papaya leaf extract through three simple steps, namely: mordanting, dyeing, and fixation. Fabric staining results then tested its fastness by two methods, namely the rub method and the washing method with soap. From the test results it was found that the fabric which was dyed with papaya leaf extract was not too resistant to fade from rubbing and soap washing. Therefore, further research is needed, such as using other agents during the mordanting and fixation processes.

scholarly journals Textile dyeing by dyestuffs of natural origin

2006 ◽  
Vol 60 (5-6) ◽  
pp. 120-128
Author(s):  
Miodrag Smelcerovic ◽  
Dragan Djordjevic ◽  
Mile Novakovic
Keyword(s):  
Natural Products ◽  
Trade Policy ◽  
Textile Industry ◽  
Textile Dyes ◽  
Natural Dyes ◽  
Natural Source ◽  
Synthetic Dyes ◽  
Natural Origin ◽  
Environmental Friendly ◽  
Textile Dyeing

The textile industry is one of the biggest industrial consumers of water especially dye houses which utilize synthetic dyes and other chemicals. Natural dyes are generally environmental friendly and have many advantages over synthetic dyes with respect to production and application. In recent years, there has been an interest in the application of these dyes due to their bio-degradability and higher compatibility with the environment. A review of previous work in the field of applying dyestuffs of natural source as possible textile dyes is given. From an ecological viewpoint, the substitution of chemical dyes by 'natural products' in textile dyeing may be feasible and may represent not only a strategy to reduce risks and pollutants, but also an opportunity for new markets and new businesses which can develop from the inclusion of ecology in trade policy.

Sustainable ultrasound-assisted ultralow liquor ratio dyeing of cotton fabric with natural turmeric dye

2019 ◽  
Vol 90 (5-6) ◽  
pp. 685-694 ◽  
Author(s):  
Xiaofei Ma ◽  
Yujuan Wei ◽  
Shuo Wang ◽  
Xin Zuo ◽  
Baolei Shen
Keyword(s):  
Cotton Fabric ◽  
Textile Industry ◽  
Sodium Dodecyl ◽  
Ultrasonic Waves ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Ultrasonic Power ◽  
Fiber Damage ◽  
Liquor Ratio ◽  
Ultrasonic Assisted

Natural dyes are environmentally friendly and have become important alternatives to synthetic dyes in some dyeing products. Therefore, better extraction and dyeing techniques need to be developed for the dyeing process of natural dyes. In this work, cotton fabric was dyed using turmeric extraction solution under an ultralow liquor ratio (materials to liquor ratio of 1:5) and ultrasonic-assisted conditions. Dye extraction using different dispersants and pH values has been investigated and three-factor-three–level Box–Behnken design was employed to explore the dyeing conditions. It was found that sodium dodecyl sulfate systems and ultrasonic waves can effective improve the dyeing depth under neutral condition. The K/ S value can reach 2.53 with ultrasonic power of 200 W, dyeing time of 30 min and temperature of 40℃. Scanning electron microscope images showed that the application of ultrasound did not cause obvious fiber damage. The developed technique could be used in the textile industry to make dyeing cotton fibers with natural dyes more sustainable than it is at present.

scholarly journals Study on Exhaustion Behaviour of Red Chili on Cotton Fabric

2021 ◽  
Vol 9 (11) ◽  
pp. 1022-1029
Author(s):  
Dr. Sumanta Bhattacharya
Keyword(s):  
Textile Industry ◽  
Large Scale ◽  
Cotton Fabrics ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Colour Strength ◽  
Before And After ◽  
Dye Absorption ◽  
Different Temperatures ◽  
Uv Visible

Abstract: Dying is a popular practice in textile industry which is prevalent at all parts of the world from the period of ancient civilization. Initially, natural dyes i.e. dye derived from natural resources like vegetables, flowers, minerals, plants etc. were used. Now-a-days, due to technological and scientific innovations synthetic dyes are processed at large scale in the laboratories as it is still one of the most profitable industry globally. However, the rapid utilization of chemicals in textile industry for production of synthetic dyes causes degradation of environment like soil pollution, water pollution etc. Hence, it is necessary to promote the utilization of natural dyes globally. In this paper, the exhaustion of dye extracted from red chillies, one of the most used vegetables same has been studied on cotton fabrics at different temperatures using UV-Visible light spectrophotometer. The colour strength of the fabric before and after application of soap therein are also studied experimentally. Keywords: Natural dye, red chillies, cotton fabrics, exhaustion of dye, absorption.

scholarly journals Analysis of Enervation Conduct of Indian Maddar Natural Dye on Silk Fabric

2021 ◽  
Vol 9 (11) ◽  
pp. 1073-1081
Author(s):  
Dr. Sumanta Bhattacharya
Keyword(s):  
Water Pollution ◽  
Textile Industry ◽  
Large Scale ◽  
Natural Dye ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Silk Fabric ◽  
Ancient Civilization ◽  
Colour Strength ◽  
The World

Abstract: Dying is a popular practice in textile industry which is prevalent at all parts of the world from the period of ancient civilization. Initially, natural dyes i.e. dye derived from natural resources like vegetables, flowers, minerals, plants etc. were used. Now-a-days, due to technological and scientific innovations synthetic dyes are processed at large scale in the laboratories as it is still one of the most profitable industry globally. However, the rapid utilization of chemicals in textile industry for production of synthetic dyes causes degradation of environment like soil pollution, water pollution etc. Hence, it is necessary to promote the utilization of natural dyes globally. In this paper, the bleached silk fabric was dyed with Indian Madder natural dye at different temperature and the colour strength is measured spectrophotometrically in order to study the effectiveness of the dye. Keywords: Natural dye, bleached silk fabric, Indian Madder, Colour strength

scholarly journals KARAKTERISASI DAN KOMPARASI PARAMETER PENCEMAR LIMBAH CAIR BATIK ZAT WARNA ALAM DAN ZAT WARNA SINTETIS GOLONGAN BEJANA

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Maghfiroh Maghfiroh ◽  
Sri Puji Astuti ◽  
Mutadin Kurdi
Keyword(s):  
Textile Industry ◽  
Government Regulation ◽  
Water Quality Management ◽  
Liquid Waste ◽  
Quality Standards ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Vat Dyes ◽  
Ph Values ◽  
Ft Ir

Keberadaan Instalasi Pengolahan Air Limbah (IPAL) di industri batik warna alam tidak menjadi prioritas karena sementara ini, zat warna alam batik diklaim sebagai jenis zat warna ramah lingkungan. Penelitian ini bertujuan untuk melakukan karakterisasi dan studi komparasi terhadap limbah cair batik zat warna sintetis (indantren navy blue) dan warna alam (indigo) golongan bejana. Parameter pencemar yang akan diteliti meliputi konsentrasi warna, nilai COD, TDS, dan pH. Analisis konsentrasi warna dianalisis dengan metode sesuai SNI 06-6989.80-2011, nilai COD dengan SNI 06-6989.2-2009, TDS dengan konduktiviti meter dan pH dengan SNI 06-6989.11-2004. Karakterisasi gugus fungsional dari kedua jenis zat warna dilakukan dengan FT-IR. Hasil penelitian menunjukkan bahwa struktur molekul dari kedua zat warna memiliki kemiripan, yang dibuktikan dengan munculnya serapan pada bilangan gelombang pada daerah yang sama. Nilai konsentrasi warna, COD, TDS dan pH air sisa celupan dari zat warna indigo masing-masing adalah 8047,5 mg/L, 6697,5 mg/L, 22100 mg/L, dan 12,163, sedangkan untuk zat warna indantren navy blue masing-masing adalah 6697,5 mg/L, 157104 mg/L, 11700 mg/L, dan 12,567. Nilai dari semua parameter yang diuji dari kedua zat warna tersebut melebihi baku mutu air limbah industri tekstil menurut Peraturan Daerah Provinsi Jawa Tengah Nomor 5 Tahun 2012 tentang Baku Mutu Air Limbah dan Peraturan Pemerintah No 82 Tahun 2001 tanggal 14 Desember 2001 Tentang Pengolahan Kualitas air dan Pengendalian Pencemaran Air. Kata kunci : batik, zat warna alam, zat warna golongan bejana, zat warna sintetis. The existance of IPAL in the natural dyes batik industry is not a priority, because natural dyes are claimed to be environtmentally friendly. This study aims to characteriz and study comparative level for batik liquid waste of synthetic dyes and natural dyes of the vat dyes. Polutan parameters to be studied include color concentration, COD, TDS, and pH values. Color concentration is analyzed by SNI 06-6989.80-2011 methode, COD values with SNI 06-6989.2-2009 methode, TDS values with conductivitymeters, and pH values with SNI 06-6989.11-2004 methode. Characterization of functional group of two types of dyes carried out with FT-IR. The result showed that the molecular structure of the two dyes had similarities, as evidenced by the appearance of absorption in wave numbers in the same area. The color concentration, COD, TDS, and pH of the batik liquid waste of indigo dyes was respectively 8047.5 mg/L, 6697.5 mg/L, 22100 mg/L, and 12.163, while indantren navy blue dyes was 6697.5 mg/L, 157104 mg/L, 11700 mg/L, and 12.567.  The value of all tested parameters of two types dye exceeded the quality standards of textile industry liquid waste according to Central Java Provincial Regulation Number 5 of 2012 concerning Wastewater Quality Standards and Government Regulation Number 82 of 2001 14th December 2001 concerning Water Quality Management and Water Pollution Control. Keywords : batik, natural dyes, vat dyes, synthetic dyes.

Dyeing of Cotton Fabric with a Natural Dye Extracted from Areca Concinna Peel

2021 ◽  
Author(s):  
R.G.S.M. Ranthunga ◽  
◽  
K.V. Wanigasekara ◽  
S.V. Udayakumara ◽  
◽  
...  
Keyword(s):  
Textile Industry ◽  
Harmful Effect ◽  
Cotton Fabrics ◽  
Natural Dye ◽  
Natural Dyes ◽  
Modern World ◽  
Synthetic Dyes ◽  
Human Beings ◽  
The World ◽  
Different Sources

In modern world, most of the countries tend to use the eco-friendly concept in many industries to minimize environmental pollution [1]. Synthetic dyes that are used in the textile industry offer more unfavourable and harmful effect to human beings such as carcinogenic, health-hazardous like skin allergies, toxic etc. And also, there is no systematic way to dispose of synthetic waste in the environment. So that it can be harmful to the ecosystem [2]. Therefore, the world tends to use natural dyes instead of synthetic dyes. Natural dyes have many advantages than synthetic dyes such as non-carcinogenic, eco-friendly, non-allergic, non-hazardous to human beings, etc. Natural dyes are mainly extracted from three different sources such as minerals, plants, and insects. Among these, plants are the most abundantly used natural dye source to extract dyes [3]. The main objective of this study was to extract natural dye from areca concinna peels and use extracted dye to dyeing the cotton fabrics.

Degradation of an Azo Dye by Fenton Type Processes Assisted with UV Irradiation

2007 ◽  
Vol 5 (1) ◽  
Author(s):  
Natalija Koprivanac ◽  
Dinko Vujevic
Keyword(s):  
Uv Irradiation ◽  
Azo Dye ◽  
Dye Degradation ◽  
Degradation Products ◽  
Batch Reactor ◽  
Process Efficiency ◽  
Molar Ratio ◽  
Synthetic Dyes ◽  
Ambient Conditions ◽  
Treatment Methods

Organic synthetic dyes are widely produced and used today. Significant losses of organic and inorganic content occurs during the manufacturing and application of dyes and its discharge in the effluent presents a threat to the eco-systems due to general toxicity and resistance to destruction by biological treatment methods. Particularly azo dyes are of special environmental concern due to their degradation products such as aromatic amines, which are considered highly carcinogenic. So, dyes have to be removed from coloured wastewater before discharge. However, traditional treatment methods (adsorption, coagulation/flocculation) mainly transfer the contaminants from wastewater to secondary waste. Therefore, advanced oxidation processes seem to be sustainable and clean technology to decolorize and minimize organic dyes content from wastewater. In this paper, degradation of an azo dye C.I. Direct Orange 39 (DO39) using Fenton type processes (Fe2+/H2O2, Fe3+/H2O2and Fe0/H2O2) has been performed. The molar ratio of Fenton’s type reagents has been varied in the range of 1 : 5 up to 1 : 50 at 0.5 and 1.0 mM concentrations of iron salts and iron powder. Experiments have been conducted for two hours in a batch reactor with magnetic stirring, ambient conditions and pH 3. The process efficiency and formation of degradation by-products have been determined on the basis of results obtained by UV/VIS spectrophotometric, total organic carbon (TOC) and high performance liquid chromatography (HPLC) analyses. The optimal Fenton and Fenton ``like" processes parameters have been applied in the photo reactor, too. It has been observed that simultaneous utilization of UV irradiation with Fenton's and Fenton ``like" reagents increases the degradation of DO39 dye. Degradation of the dye in dilute aqueous solution follows pseudo-first order kinetics. The maximal decolourization of 20 mg L-1 DO39 in water of 93.2% and TOC degradation of 76.9% were obtained using Fe3+/H2O2= 1 : 5 molar ratio. The results indicate that the treatment of DO39 dye wastewater with UV/Fe3 +/H2O2 system was found to be the most efficient.

FASTNESS PROPERTIES OF COLOURANTS EXTRACTED FROM LOCUST BEANS AND TAMARIND FRUITS PODS

2013 ◽  
Vol 1 (2) ◽  
pp. 21-34
Author(s):  
IBRAHIM ABDULLAHI UMAR
Keyword(s):  
Natural Dyes ◽  
Synthetic Dyes ◽  
Fastness Properties ◽  
Colour Fastness ◽  
Comparative Analyses ◽  
Silk Fabrics

Kepentingan meningkat untuk pewarna semulajadi bermula beberapa tahun lalu tetapi di pihak pengguna, manfaat tersebut hanya mula dirasai. Pewarna asli dianggap sebagai pewarna mampan dan mesra alam; mereka boleh menghasilkan warna yang berbeza warna dan mempunyai ketahanan luntur yang lebih rendah daripada pewarna sintetik. Oleh itu, kertas kerja ini dikaji pada sifat kubu daripada pewarna yang diekstrak daripada kacang belalang dan buah-buahan asam buah.Warna-warna ini dipetik menggunakan kaedah berair dan pelarut dan telah digunakan di dataran terluntur ditenun kapas dan sutera kain.Yang digunakan bagi pedas meningkatkan penembusan warna (pewarna) dan sampel dicelup telah tertakluk kepada ujian kubu (membasuh, menggosok, peluh & ujian cahaya). Perbandingan analisis kepada tahap pewarnaan telah direkodkan dan ujian kubu baik daripada analisis membuktikan bahawa; warna boleh digunakan sebagai pewarna pada kapas dan sutera kain.   An interest for natural dyes increased several years ago but on the part of the consumers, the benefits are just beginning to be felt. Natural dyes are considered as sustainable and ecofriendly dyes; they can produce different shades of colours and have lower colour fastness than synthetic dyes. Therefore, this paper researched on the fastness properties of colorant extracted from locust beans and tamarind fruits pods. The colours were extracted using aqueous and solvent methods and were applied on bleached plain weaved cotton and silk fabrics. The use of mordant increased the penetration of the colours (dyes) and the dyed samples were subjected to fastness test (washing, rubbing, perspiration & light test). Comparative analyses on the degree of staining were recorded and good fastness test from the analysis proved that; the colours can be used as dyes on cotton and silk fabrics.

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