scholarly journals Eco-dyeing of silk with Dhavdi flowers and its fastness evaluation

2009 ◽  
Vol 1 (2) ◽  
pp. 173-179
Author(s):  
Meenu Srivastava ◽  
Preeti Udawat
Keyword(s):  
Aqueous Medium ◽  
Copper Sulphate ◽  
Process Development ◽  
Ferrous Sulphate ◽  
Colour Change ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Colour Fastness ◽  
Dry And Wet Conditions ◽  
Silk Material

The present study is based on the process development for colouring of silk yarns with Dhavdi flowers using selected mordants to study its effects on colour fastness properties and optimization of different extraction conditions, duration and concentration for better dye and its shades. The results revealed that aqueous medium was suitable for extraction of dye from pink petals of Dhavdi flowers for one hour. The shades of midbuff, sand stone ,coffee and olive green brown were obtained by taking 4 g dried powder of dhavdi dye for dyeing 1 gram of silk material for 45 minutes. All the four mordants were found suitable for application on silk, 10 % of alum, 3 % of chrome, 2 % of copper sulphate and 3% ferrous sulphate were found to produce best shades on silk material. Post mordanting had resulted in darker shades in all the mordant. Simultaneous mordanting method was found best in case of chrome mordant. Excellent to outstanding fastness to sunlight was found in all mordanted samples. There was absolutely no staining in washed samples. Colour change was not found in the samples subjected to crocking in both dry and wet conditions except in case of ferrous mordanted samples,. The colour was stable as shown by their higher resistance towards acidic and alkaline perspiration. Hence, the dye obtained from Dhavdi flowers proved to be extremely good and can be recommended for dyeing silk fabric.

scholarly journals Colorimetric Analysis and Fastness Properties of Jute Fabric Dyed with Eucalyptus Leaves

Tekstilec ◽  
2020 ◽  
Vol 63 (3) ◽  
pp. 195-202
Author(s):  
Kamrun Nahar ◽  
◽  
Shurfun Nahar Arju ◽  
Jannatul Ferdush ◽  
Marzia Islam ◽  
...  
Keyword(s):  
Copper Sulphate ◽  
Ferrous Sulphate ◽  
Fastness Properties ◽  
Colour Fastness ◽  
Jute Fabric ◽  
Eucalyptus Leaves ◽  
Dyeing Process ◽  
Colour Strength ◽  
Natural Mordant ◽  
The Impact

Natural dyestuff has reverted its position in the colouration of textile substrates due to rising concerns of consumers and buyers, particularly about environmental impacts and health issues. Eucalyptus leaves were selected in this study as a source of natural dye along with some of the most generally used mordants to observe the impact of dyeing on jute fabric while trying to keep the dyeing parameters at a minimum level. Dyes were extracted from eucalyptus leaves by boiling in water. Then, the fabric was pre-mordanted using different synthetic mordanting agents, such as alum, potassium dichromate, copper sulphate and ferrous sulphate, which are generally used to substantively enhance the dyestuff on textile fabrics and to improve the fastness properties. Synthetic mordant was used here instead of natural mordant due to the better dyeing compatibility of jute fabric with eucalyptus leaves, since natural mordant has little effect on jute fabric during the process of dyeing. Another aim of this research is to curb the time and energy consumption of the jute dyeing process and so the dyeing is carried out at 75 °C for about 30 minutes. Various types of evaluations were conducted through visual assessment, checking the colour-coordinate values and colour strength values. While colour fastness properties were evaluated by different fastness testing, such as colour fastness to water, washing, rubbing and perspiration. This dyeing process yields a colour range from yellowish to brown with the variation of mordants applied on the fabric. In addition to that, colour co-ordinate and colour strength values ensure better results of dyed fabrics pretreated with ferrous sulphate. Jute fabric dyed with only extracted eucalyptus solution provided satisfactory results in all colour fastness tests, while fabric treated with different mordants showed variations in fastness ratings, and fabric treated with ferrous sulphate and copper sulphate had slightly better fastness ratings.

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.

scholarly journals Effects of Different Mordants on Silk Fabric Dyed with Onion Outer Skin Extracts

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Mohammad Gias Uddin
Keyword(s):  
Tartaric Acid ◽  
Tannic Acid ◽  
Ferrous Sulphate ◽  
Synthetic Dyes ◽  
Color Fastness ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Natural Plant ◽  
Outer Skin ◽  
Potential Source

At present, a higher demand is put towards the use of natural dyes due to increased awareness of the environmental and health hazards associated with the synthesis and use of synthetic dyes. This research was conducted using onion outer skins as a potential source of natural plant dyes. In this study, extraction of dye was carried out in aqueous boiling method. Premordanting technique was followed using different mordants, namely alum, ferrous sulphate, tin, tannic acid, tartaric acid, and their combinations on silk fabric. Fabric samples dyed without using any mordant were then compared with the dyed samples pretreated with the mordants. The range of colors developed on dyed materials was evaluated by measuring the color values with respect to K/S values and color coordinates. It was concluded that the color values were found to be influenced by the addition of mordants, and thus different fashion hues were obtained from the same amount of dye extract using different mordants. Ferrous sulphate was found as the most influential mordant. ΔEcmc values between unmordanted (Reference dyed) and metallic mordanted fabric samples were found higher than those between unmordanted and nonmetallic mordanted fabric samples. The dyed samples were evaluated for color fastness to washing, light, drycleaning, rubbing, and perspiration. The color fastness properties were found to be satisfactory and improved in many cases. From the fastness results, it was obvious that these dyes can also be applied on silk fabric without using any mordant if required.

scholarly journals Psuderanthimum reticulatum: A New Green Source for Dyeing of Cotton Fabric

2020 ◽  
Vol 32 (10) ◽  
pp. 2583-2588
Author(s):  
S. Margrat Sheela ◽  
J. Rosaline Vimala ◽  
M. Stella Bharathy ◽  
A. Agila ◽  
S. Sharmila ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Copper Sulphate ◽  
Stannous Chloride ◽  
Ferrous Sulphate ◽  
Cotton Fabrics ◽  
Fastness Properties ◽  
Anthocyanin Pigment ◽  
Light Fastness ◽  
Chemical Test ◽  
Dyed Fabrics

In the present work, cotton fabrics were dyed using the acidified aqueous extract of Psuderanthimum reticulatum leaves with different mordants such as ferrous sulphate, stannous chloride, copper sulphate, potash alum and ferric alum by premordanting technique and various shades were obtained. The washing, perspiration and light fastness properties of the dyed fabrics were carried out by standard methods, ISO 105-C06 A2S-2010, ISO 105 E04-2013 and ISO 105 B02 Methods 3:2014, respectively. Cotton fabrics dyed with copper sulphate and ferric alum showed excellent to very good properties towards the entire fastness tests studied. The bioactive colourant present in the aqueous extract of Psuderanthimum reticulatum responsible for dyeing is anthocyanin pigment and it was identified by chemical test, UV & FTIR spectral and HPLC analysis.

scholarly journals A Study on Coloring Properties of Rheum emodi on Jute Union Fabrics

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Lopamudra Nayak
Keyword(s):  
Copper Sulphate ◽  
Textile Industry ◽  
Guar Gum ◽  
Ferrous Sulphate ◽  
Raw Material ◽  
Fastness Properties ◽  
Light Fastness ◽  
Aluminium Sulphate ◽  
The Cost ◽  
Thickening Agents

Jute-cotton and jute-wool union fabrics have been printed with colorant extracted from Rheum emodi with guar gum and albumin as thickening agents and aluminium sulphate, copper sulphate, and ferrous sulphate as mordants. Printing with Rheum emodi colorant with different mordants resulted in different shades ranging from yellowish brown, deep brown, reddish brown, and gray shades to olive black. The K/S value showed that mordants, namely, CuSO4 and FeSO4, exhibited high colour absorption regardless of the nature of material used. All the printed samples have good to excellent wash, rubbing and light fastness properties regardless of the nature of materials, mordants, and thickeners used. Guar gum is closely at par with albumin as a thickening agent and considering the cost and availability of raw material, guar gum is the better choice for the textile industry.

Dyeing of Silk Fabric with Extracted Dyes from Lichens

2015 ◽  
Vol 1134 ◽  
pp. 165-170
Author(s):  
Nor Atiqah Mohamed ◽  
Mohd Rozi Ahmad ◽  
Muhammad Ismail Abd Kadir ◽  
Asmida Ismail ◽  
Wan Yunus Wan Ahmad
Keyword(s):  
Boiling Water ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Natural Dyeing ◽  
Fermentation Method ◽  
Silk Fabrics ◽  
Colour Coordinates

Two lichens species (ParmotremapraesorediosumandHeterodermialeucomelos)were assessed for dye production using boiling water method (BWM) and ammonia fermentation method (AFM). The dyes were applied on silk fabric. Three types of mordant were used i.e. alum, iron and vinegar through meta-chrome (simultaneous) method of natural dyeing. The K/S values, colour coordinates values and colour differences (ΔE) of the dyed samples were measured. Dyeing fastness properties of the dyed silk fabrics were assessed for washing, rubbing and light. TheP.praesorediosumextracts yielded beige to dull brown shades using BWM and pinkish-purple using AFM, whereas theH.leucomelosextracts produced yellowish-brown shades for both BWM and AFM on the silk substrate. Modanting seemed to be effective in increasing the K/S values of all mordanted fabrics except in the case of silk fabric dyed withP.praesorediosumextracted from AFM. Fastness ratings to washing and rubbing were all very good (5-4) for bothP.praesorediosumandH.leucomelosdyed silk fabrics. The fabrics dyed withP.praesorediosumandH.leucomelosextracts produced strong and deep colours as their ΔE values were higher and increased obviously of all mordanted fabrics. It can be concluded thatP.praesorediosumandH.leucomelosextracted from BWM and AFM methods can be used as an alternative dye source.

Application of eco-friendly natural dye obtained from Spathodea campanulata on silk using combination of mordants

2016 ◽  
Vol 27 (1) ◽  
pp. 15-21 ◽  
Author(s):  
M Kumaresan
Keyword(s):  
Large Scale ◽  
Potassium Dichromate ◽  
Ferrous Sulphate ◽  
Research Work ◽  
Natural Dye ◽  
Alkaline Media ◽  
Silk Fabric ◽  
Content Type ◽  
Wide Range ◽  
New Research

Purpose – The purpose of this paper is to extract the eco-friendly natural dye obtained from the flower of Spathodea campanulata and apply on silk fabric using combination of mordants. The fastness properties of the flower of Spathodea campanulata dyed silk fabric have been studied using different combination (1:3, 1:1 and 3:1) of various mordants, such as myrobolan: nickel sulphate, myrobolan: aluminium sulphate, myrobolan: potassium dichromate, myrobolan: ferrous sulphate and myrobolan: stannous chloride. The wash, rub, light and perspiration fastness of the dyed samples have been evaluated. Design/methodology/approach – For dyeing there are three methods are used. They are Pre mordanting, Simultaneous mordanting and Post mordanting methods. Dyed silk materials are tested by using wash fastness, rub fastness, light and perspiration fastness methods. Findings – It is found that Spathodea campanulata dye can be successfully used for the dyeing of silk to obtain a wide range colours by using various combinations of mordants. With regards to colour fastness, test samples exhibit excellent fastness to washing, rubbing, except for pre-mordanting using myrobolan: potassium dichromate combination; and good to excellent fastness to perspiration in both acidic and alkaline media. Originality/value – Availability of literature related to this work is not available. The study of combination of mordants of this natural dye on silk is a new research work and the large scale preparation is definitely very useful to the society.

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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