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.

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 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 Autonomia świata a podmiotowość człowieka w ekoteologii

2010 ◽  
Vol 8 (1) ◽  
pp. 117-131
Author(s):  
Jarosław Horowski
Keyword(s):  
Modern World ◽  
Ecological Problem ◽  
Human Beings ◽  
Contemporary Culture ◽  
Inherent Value ◽  
The Bible ◽  
Teleological Argument ◽  
Christian Worldview ◽  
The World ◽  
Human World

One of the most difficult problems, which is to be solved by contemporary culture, is the ecological problem. It concerns the culture because the hedonistic and consumerist mentality of man plays an important part in it. Biocentrism states that the ecological problem results from traditional Western attitudes to the non-human world based on the belief that humans are the central and most significant entities in the universe. Biocentrism puts forward a teleological argument for the protection of the environment. It indicates that non-human species have inherent value as well and each organism has a purpose and a reason for being, which should be respected. Biocentrism states that the anthropocentric attitude to the non-human world results from the Christian worldview based on the Bible where it is written that God gives man dominion over all creatures. The author analyses the main issues of the Catholic concept of the relationship between human beings and other creatures. He indicates that ecotheology respects the inherent value of non-human creatures because, as the Pastoral Constitution on the Church in the modern world Gaudium et spes says: “all things are endowed with their own stability, truth, goodness, proper laws and order”, but maintains that the purpose of the world is connected with its relationship to God. The author considers also what is the human subjectivity in behaving towards the environment and what is the dependence between the autonomy of the world and the subjectivity of man in ecotheology. In the end, the author comes to the conclusion that according to ecotheology the ecological problem results from the broken relationship between the human and God and in consequence it the broken relationship between the world and God.

scholarly journals Natural Dyes: From Cotton Fabrics to Solar Cells

2021 ◽  
Author(s):  
Indriana Kartini ◽  
Adhi Dwi Hatmanto
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Cotton Fabrics ◽  
Natural Dye ◽  
Natural Dyes ◽  
Oxide Surface ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

This article will discuss natural dyes’ role, from colouring the cotton fabrics with some functionality to harvesting sunlight in the dye-sensitized solar cells. Natural dye colourants are identical to the low light- and wash-fastness. Therefore, an approach to improving the colourant’s physical properties is necessary. Colouring steps employing silica nanosol and chitosan will be presented. The first part will be these multifunctional natural dye coatings on cotton fabrics. Then, functionality such as hydrophobic surfaces natural dyed cotton fabrics will be discussed. Natural dyes are also potential for electronic application, such as solar cells. So, the second part will present natural dyes as the photosensitizers for solar cells. The dyes are adsorbed on a semiconductor oxide surface, such as TiO2 as the photoanode. Electrochemical study to explore natural dyes’ potential as sensitizer will be discussed, for example, natural dyes for Batik. Ideas in improving solar cell efficiency will be discussed by altering the photoanode’s morphology. The ideas to couple the natural dyes with an organic–inorganic hybrid of perovskite and carbon dots are then envisaged.

INVERSTIGATION OF RUBIA CORDIFLORIA (INDIAN MADDER) DYE ON SILK FABRIC

2021 ◽  
pp. 59-60
Author(s):  
A.S. Monisha ◽  
G. Parasakthibala
Keyword(s):  
Health Hazard ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Huge Amount ◽  
Environmentally Conscious ◽  
Colour Fastness ◽  
The World ◽  
Plant Sources

Synthetic dyes release huge amount of waste and uniform colourants lead to health hazard. It also disturbing the ecobalance of the nature. Natural dyes are mostly derived from plants, invertebrates, or minerals. The most of the natural dyes are vegetable dyes from plant sources-roots, berries, bark, leaves, and wood—and other organic sources such as fungi and lichens. Natural dyes exhibit good biodegradability and are more compatible with the environment. In spite of their inferior fastness, natural dyes are more acceptable to environmentally conscious people around the world. The present study deals with the natural dyes extracted from Rubia Cordifloria. The extracted dye used to dye selected silk fabric and myrobalan mordant used for dye ability, fastness properties, absorbency test. Two shades with different concentration have been developed. Absorbency properties of the dyes extracted from madder and sinking test was determined. The colour fastness through washing and rubbing (Wet and Dry) was an excellent satisfaction in both different concentrations.

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.

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.

The Culture of the Church

1954 ◽  
Vol 16 (2) ◽  
pp. 131-154
Author(s):  
Frank O'Malley
Keyword(s):  
Religious Education ◽  
Modern World ◽  
Human Beings ◽  
The World ◽  
The Face ◽  
The Church

Among the preparatory prayers of the Mass, there are these words from Psalm 42: “Judge me, O God, and distinguish my cause from the nation that is not holy.” However inadequately accomplished, the purpose of this essay is to affirm and distinguish our cause as Catholic minds and human beings from the nation and from the world that are not holy—to affirm the strength and meaning of the world of the Church for our varied worlds of living and working. As Christopher Dawson points out in a remarkable essay, there is, even in the modern world, “a tradition of sacred culture which it has been the mission of the Church to nourish and preserve”—and to nourish and preserve it even in the nation that is not holy. “However secularized our modern civilization may become,” Dawson continues, “this sacred tradition [this sacred life] remains like a river in the desert, and a genuine religious education can still use it to irrigate the thirsty lands and to change the face of the world with the promise of a new life. The great obstacle is the failure of Christians themselves to understand the depth of that tradition and the inexhaustible possibilities of new life that it contains.”

SHORTER ARTICLES, COMMENTS, AND NOTES: TRAFFICKING OF HUMAN BEINGS AS A CRIME AGAINST HUMANITY: SOME IMPLICATIONS FOR THE INTERNATIONAL LEGAL SYSTEM

2005 ◽  
Vol 54 (2) ◽  
pp. 445-458 ◽  
Author(s):  
Tom Obokata
Keyword(s):  
United Nations ◽  
Organized Crime ◽  
Modern World ◽  
Human Beings ◽  
Trafficking In Persons ◽  
Transnational Organized Crime ◽  
The World ◽  
Women And Children ◽  
United Nations Convention ◽  
International Legal System

Trafficking of human beings is a widespread practice in the modern world. It has been estimated that up to 800,000 people, especially women and children, are trafficked all around the world each year.1Virtually all States are affected,2and traffickers are believed to make between $7 and $10 billion annually from the trafficking business.3In order to combat trafficking, the Protocol to Prevent, Suppress and Punish Trafficking in Persons, Especially Women and Children (Trafficking Protocol) was adopted in December 2000, within the framework of the United Nations Convention against Transnational Organized Crime (Organized Crime Convention).4

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.

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