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.

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 NATURAL DYES EXTRACTED FROM WASTE LEAVES OF TERMINALIA CATAPPA LOCALLY KNOWN AS TROPICAL ALMOND AND ITS APPLICATION ON SILK FABRICS PRETREATED WITH ECO FRIENDLY AND NONECO-FRIENDLY MORDANTS

2017 ◽  
Vol 5 (5) ◽  
pp. 125-137 ◽  
Author(s):  
Yogesh Vadwala ◽  
Namrita Kola
Keyword(s):  
Natural Resources ◽  
Environmental Pollution ◽  
Waste Product ◽  
Natural Dye ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Fastness Properties ◽  
Terminalia Catappa ◽  
Silk Fabrics ◽  
Dyes And Pigments

The use of non-toxic and eco-friendly natural dyes on textiles has become a matter of significant importance because of the increased environmental awareness in order to avoid some synthetic dyes. Synthetic dyes are hazardous and carcinogenic and also release vast amount of pollutant in the environment during their manufacture and application, thus revival of natural dyeing techniques as one of the alternative is being emphasized for this purpose. Most effective ways for reducing environmental pollution is the replacement of polluting materials and chemicals by eco-friendly natural materials. Many natural resources which are being wasted indiscriminately or thrown away as a waste product contain useful dyes and pigments. In the present study, natural dye extracted from the waste leaves of Terminalia Catappa (tropical almond) and its application on silk fabrics pretreated with eco-friendly and non-eco-friendly mordants have been carried out successfully. Different shades with excellent to good fastness properties have been obtained.

scholarly journals An overview of research on plant based natural dyes in Nepal: scope and challenges

2020 ◽  
Vol 3 (2) ◽  
pp. 45-66
Author(s):  
Netra Lal Bhandari ◽  
Basant Pokhrel ◽  
Upashana Bhandari ◽  
Sulakshana Bhattarai ◽  
Anil Devkota ◽  
...  
Keyword(s):  
Research Laboratory ◽  
Biomedical Applications ◽  
Public Awareness ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Fastness Properties ◽  
Research Fields ◽  
Dyeing Process ◽  
Wide Range ◽  
Dye Extraction

The worldwide demand of natural dyes is of great interest due to the increased public awareness about the atmospheric and environmental pollution caused by the commercially available synthetic dyes. Nepal being wealthy in flora, would be fine research laboratory land for the plant based natural dyes. Among most of the natural dyes, plant-based dyes/pigments have wide range of applications in fabric, food, drug coloring, therapeutic values and also in solar cells in presence of different mordants. The use of mordant is inevitable during natural dyeing process in order to improve the fastness properties on fabrics, foods and drugs by forming a co-ordination complex with dye. In this article, a short overview of plant based natural dyes extraction applications and their scope and limitations will be discussed with special reference to Nepal. In the present review, the green methods of dye extraction, and dyeing technologies will be discussed, and the research fields based on natural dyes will be explored. Some of the natural dyes has also shown the antimicrobial, antioxidant, antifungal properties and hence are also discussed with biomedical applications.  

Nano Natural Dyes from Melastoma Malabathricum L.

2012 ◽  
Vol 545 ◽  
pp. 59-63 ◽  
Author(s):  
Wan Yunus Wan Ahmad ◽  
M.A. Mohd Nor ◽  
N. Saim ◽  
M.I. Ab Kadir ◽  
M.R. Ahmad
Keyword(s):  
Extraction Method ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Printing Industry ◽  
Fashion Industry ◽  
Silk Fibers ◽  
Melastoma Malabathricum ◽  
Solvent Extraction Method ◽  
Silk Fabrics ◽  
Nano Size

In this study, natural colours were produced from Melastoma Malabathricum L.’s (Senduduk) plant. The dyes were extracted from the petal part of the plant using solvent extraction method of acidified methanol and methanol. The natural colours were then converted into powder form of nano size scale using a ball mill grinder. Silk fabrics were used as the substrate and dyed using several natural and synthetic mordant. The use of different solvents for extraction and mordant for dyeing resulted in different colour shades on the silk fabrics. The color fastness to washing tests revealed colour fastness to washing ranging from 3 – 4/5 and the change in color ranging from 3/4 – 4/5. The findings will benefit and promote the dyeing and printing industry such as batik manufacturers and local fashion industry in using natural dyes. On the other hand, dyes from plants can also be used as an alternative to synthetic dyes for dyeing natural silk fibers.

scholarly journals Eco-dyeing of wool yarn with Ziziphus jujuba Mill. (Ber) and its colour fastness properties

2018 ◽  
Vol 10 (3) ◽  
pp. 1046-1052
Author(s):  
Liza Moni Chungkrang ◽  
Ava Rani Phukan ◽  
Binita Kalita
Keyword(s):  
Natural Dyes ◽  
Fastness Properties ◽  
Colour Fastness ◽  
Dyeing Process ◽  
Brown Colour ◽  
The World ◽  
Ziziphus Jujuba

In search of eco-friendly processes for dyeing with natural dyes research has been focused on identification and standardization of natural dyes. Considering the growing importance of natural colourants all over the world, the present work was undertaken with on aim to study the colour fastness properties of wool yarn dyed with bark of Ziziphus jujuba Mill. (ber). The dyed wool samples had good to excellent colour fastness to washing, crocking perspiration and sunlight. Different shades of brown colour of rust, candy pink, biscuit brown, nut brown and light brown were obtained using different mordants. This type of eco-dyeing process may be helpful in increasing the variety of colours in the field of textiles.

scholarly journals Green Synthesis of Dyes and Appliance on Silk by Using Metamordating Technique

2021 ◽  
Vol 64 (2) ◽  
pp. 116-125
Author(s):  
Bushra Shamsheer ◽  
Tahira Aziz Mughal ◽  
Zubaida Yousaf ◽  
Nadia Riaz ◽  
Arusa Aftab ◽  
...  
Keyword(s):  
Main Idea ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Technical Knowledge ◽  
Fastness Properties ◽  
Cassia Fistula ◽  
Natural Sources ◽  
Ficus Benghalensis ◽  
Ziziphus Jujube ◽  
Harmful Effects

The main idea of extracting dyes from plant (natural) sources is to avoid the environmental pollution. Natural dye from plants has been given much interest in recent years due to the threat and harmful effects are used by synthetic dyes and environmental awareness created by researchers. The drawback of synthetic dyes is that they are not durable as they do not completely fix on all kind of fabric and remaining dyestuff drained into rivers, becoming the cause of water pollution as well as they cause diseases in human being like cancer and allergies. On the other hand, natural dyes are eco-friendly and find use in the colouring of textiles, drugs and cosmetics etc. Owing to their non-toxic effects, they are also even used for colouring various food products. Mordents are used in natural dyes which enhance the colour of dye and stick it on fabric. Due to lack of availability of precise technical knowledge on the extracting and dyeing technique, it has not commercially succeeded like the synthetic dyes. Hence, the present study was planned to isolate eco-friendly dyes from the bark of the plants (Ziziphus jujube Mill., Albizialebbeck L., Cordia dichotoma G Forst., Ficus benghalensis L. and Cassia fistula L.) and the roots of Ficus benghalensis L. Later on the dyes were applied on silk fabric by using metamordating technique. Then fastness properties like rubbing, heating, washing and sunlight were evaluated by using gray scale. F. benghalensis showed excellent fastness properties. Z. jujube showed series of colour variations on silk. Therefore, the bark and root of these plants can be successfully used for dyeing of silk. Natural dyes worldwide should be increased to prevent us from pollution and other harmful effects.    

Cold-Pad-Batch Dyeing of Silk with Laccifer lacca Kerr. and Garcinia dulcis (Roxb.) Kurz Bark

2013 ◽  
Vol 864-867 ◽  
pp. 2152-2155
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Monthon Nakpathom ◽  
Nattaya Punrattanasin
Keyword(s):  
Tartaric Acid ◽  
Ferrous Sulfate ◽  
Natural Dyes ◽  
Fastness Properties ◽  
Color Intensity ◽  
Batch Technique ◽  
Silk Fabrics ◽  
Silk Dyeing ◽  
Different Color ◽  
Color Depth

Cold-pad-batch technique of silk dyeing fabric with two natural dyes (Laccifer lacca Kerr. And Garcinia dulcis (Roxb.) Kurz bark) using pre-mordant are performed using 3 different mordants namely, alum, tartaric acid and ferrous sulfate. The study showed that color intensity (K/S) slightly increased when the batching time increased from 1 to 24 hours. Dyed silk fabrics have different color shades depending on the types of mordant applied. Ferrous sulfate and alum was found to be the best mordants for improvements of color depth. Various fastness properties (wash, crock and light) of the dyed silk fabrics have also been investigated.

UV-Protection Property of Silk Fabric Dyed with Natural Indigo by Using Padding Technique: A Focus on Effect of Ferrous Sulfate Mordant

2015 ◽  
Vol 804 ◽  
pp. 217-220 ◽  
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Chintana Saiwan ◽  
Charoon Klaichoi ◽  
Nattadon Rungruangkitkrai ◽  
Pornphanit Sasivatchutikool
Keyword(s):  
Ferrous Sulfate ◽  
Uv Protection ◽  
Natural Dyes ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Protection Factor ◽  
Potential Applications ◽  
Good For ◽  
Protection Property ◽  
Silk Fabrics

Silk fabric has been dyed with natural indigo (Indigofera tentoria) in absence and present ferrous sulfate mordant by using post-mordanting and pad dyeing processes. It was observed that with an increase in the dye concentration, the ultraviolet (UV) protection factor (UPF) values ranged between good and very good for the silk fabric. Silk fabrics dyed with natural indigo showed green shade. The level of fastness properties were ranged from good to very good. The results confirmed that natural dyes from natural indigo with ferrous sulfate have potential applications in fabric dyeing and in producing UV-protective silk fabrics.

scholarly journals Study of K/S, Anti-bacterial, UV-protection, Anti-odor and SEM on Chemical Treated Cotton Fabrics

2017 ◽  
Vol 12 (2) ◽  
pp. 155892501701200
Author(s):  
J. Jeyakodi Moses ◽  
V.K. Venkataraman
Keyword(s):  
Sodium Hydroxide ◽  
Cotton Fabric ◽  
Research Work ◽  
Cotton Fabrics ◽  
Uv Protection ◽  
Natural Dyes ◽  
Synthetic Dyes ◽  
Fastness Properties ◽  
Stain Resistance ◽  
Sem Study

In this research work cotton fabrics were treated with sodium hydroxide, morpholine and cellulase enzyme. The treated fabrics were then dyed with some selected natural dyes such as annatto, onion, pomegranate, indigo, myrobalan, bar berry; and synthetic dyes such as reactive and sulphur dyes. These treated samples were tested for their dyeing characteristics (K/S value, fastness properties, washing, light, rubbing and stain resistance), antibacterial, uv-protection, anti-odor behaviors and SEM study. Among the treated fabrics, sodium hydroxide treated cotton fabric exhibited the best properties.

scholarly journals Effect of Mordant Types and Methods on the Color Fastness Properties of Silk Fabrics dyed with Brown Seaweeds

2019 ◽  
Vol 8 (4) ◽  
pp. 6897-6901
Keyword(s):  
Brown Seaweed ◽  
Natural Dyes ◽  
Color Fastness ◽  
Fastness Properties ◽  
Aluminium Sulphate ◽  
Brown Seaweeds ◽  
Metallic Salts ◽  
Dyed Fabrics ◽  
Silk Fabrics

Natural dyes come from plenty of sources including plants, animals, insects or microorganisms. At present, natural dyes are highly demanded in textile application. In this study, brown seaweed (Sargassum spinosum) extracts were utilized for silk coloration with the use of metallic salts mordants (Iron II Sulphate and Aluminium Sulphate) and biomordants (cinnamon and chitosan). Dyeing was performed with pre-mordanting and simultaneous mordanting methods. The dyed fabrics were analyzed in terms of color fastness properties to washing, perspiration, rubbing and light. The results revealed that seaweed dyes with cinnamon mordant gave darker shades and higher absorbency towards silk which is comparable to iron mordant. The approach of using biomordant is parallel to the sustainability demand of natural dyes in textile application.

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