scholarly journals Green dyeing of microwave treated silk using coconut coir based tannin natural dye

2020 ◽  
Vol 71 (03) ◽  
pp. 227-234
Author(s):  
SHUMAILA KIRAN ◽  
SHAHID ADEEL ◽  
MUHAMMAD SAJJAD YOUSAF ◽  
NOMAN HABIB ◽  
ATYA HASSAN ◽  
...  
Keyword(s):  
Textile Industry ◽  
Research Work ◽  
Microwave Treatment ◽  
Natural Dye ◽  
Silk Fabric ◽  
Optimal Conditions ◽  
Colour Strength ◽  
Experimental Parameters ◽  
Coconut Coir ◽  
Silk Dyeing

The resurgence of natural dyes is gaining fame in textile industry due to eco-friendly nature. The present study was done to investigate the Coconut coir as natural dye (tannin) for silk dyeing under Microwave (MW) treatment following the optimization of experimental parameters. Isolation of colorant was carried out in aqueous, acidic and organic media (methanol) under influence of MW treatment up to 6 minutes. Dyeing of silk was carried out having irradiated and unirradiated extracts. Good colour strength was achieved by dyeing unirradiated silk using methanolic extract under MW treatment for 4 minutes at 75°C. The optimal dyeing was achieved at 75 minutes at pH 8 while keeping fabric liquor ratio 1:25 having 5 g/100 ml table salt as an electrolyte. For development of shades, salts of Al and Fe and Tannic acid were used as pre- and post-chemical mordants and Acacia, Pomegranate, Turmeric and Henna as pre- and post-biomordents. Acacia (6%) as pre-bio mordant and Turmeric (6%) as post-bio mordant considerably improved the colour strength at optimal conditions utilizing irradiated extract of coconut coir (tannin) and un-irradiated silk under MW treatment at 4 minutes. ISO-standard shows good colour fastness and colour strength at optimal conditions using Acacia and Turmeric as bio-mordents. This research work gives information about tannin extracted from Coconut coir has great potential to dye silk fabric to produce reddish-brown colour under the influence of microwave treatment. FTIR spectral study revealed chemical changes in the silk fabric treated with microwave radiations.

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

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.

Natural Dye from Garcinia dulcis (Roxb.) Kurz Bark and Application on Silk Fabric by Using Pad-Batch Dyeing: A Study on Mordant Concentrations Efficiency

2014 ◽  
Vol 884-885 ◽  
pp. 216-219
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Nattadon Rungruangkitkrai ◽  
Nitaya Tubtimthai ◽  
Nuttanan Sasivatchutikool ◽  
Nattaya Punrattanasin
Keyword(s):  
Batch Process ◽  
Natural Dye ◽  
Bark Extract ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Yellow Colour ◽  
Light Yellow ◽  
Colour Strength ◽  
Dye Extraction ◽  
Silk Fabrics

The dyeing and fastness properties of silk fabric dyed with natural dye extraction from the bark of Garcinia Dulcis (Roxb.) Kurz by the pad-batch process was studied. The effect of dyes at different mordant concentration levels on their colour strength was also investigated. Silk fabrics dyed with Garcinia Dulcis (Roxb.) Kurz bark extract showed a pale yellow shade, while those dyed with alum and stannous chloride bright yellow and light yellow colour, respectively. Silk substrates dyed with CuSO4 gave a yellowish green colour, while those dyed with FeSO4 had a dark brown colour. The fastness properties showed fair to good rating, whereas the colour fastness to perspiration was at a poor level.

Dyeing of Silk with Natural Plant Extract from Rhizoma picrorhizae

2012 ◽  
Vol 441 ◽  
pp. 155-159
Author(s):  
Sha Sha Sun ◽  
Jie Jie Wang ◽  
Ren Cheng Tang
Keyword(s):  
Ultraviolet Light ◽  
Plant Extract ◽  
Electrostatic Interactions ◽  
Chemical Nature ◽  
Natural Dye ◽  
Silk Fabric ◽  
Natural Plant ◽  
Acidic Conditions ◽  
Silk Dyeing ◽  
Dyed Fabric

A new concept that uses natural plant extract from Rhizoma Picrorhizae (RP) as a natural dye in silk dyeing was proposed. The RP extract can be adsorbed by silk to provide yellow to brown color, depending on the RP concentration. The stabilities of RP solution against pH, heat, and ultraviolet light were investigated. Factors such as pH, temperature, dyeing time, RP concentration were studied in order to understand the dyeing properties of RP extract for silk fabric. After dyeing, some of the samples are mordanted with different mordants. It was founded that RP extract was stable at acidic conditions and stable to heat and ultraviolet light, and the interactions between silk and RP extract molecules were non-electrostatic interactions; and that RP extract showed good building-up properties on silk. Furthermore, the colors of the dyed fabric mordanted with different mordants as well as their depth were greatly dependent on the chemical nature of mordants. In conclusion, RP was a potential natural dye which can be applied to silk dyeing.

An Evaluation of Silk Fabric Dyed with Lac Dye by Using Pad-Dry Technique - A Research on Effect of Mordant Concentration

2013 ◽  
Vol 821-822 ◽  
pp. 569-572
Author(s):  
Rattanaphol Mongkholrattanasit ◽  
Kittisak Ariyakuare ◽  
Tuernchai Limtrakool ◽  
Chintana Saiwan ◽  
Nattadon Rungruangkitkrai ◽  
...  
Keyword(s):  
Stannous Chloride ◽  
Natural Dye ◽  
Silk Fabric ◽  
Fastness Properties ◽  
Dyeing Properties ◽  
Washing Fastness ◽  
Colour Strength ◽  
Lac Dye ◽  
Silk Fabrics ◽  
Concentration Levels

A natural dye extracted from lac was applied to a silk fabric by the use of pad-dry technique under different conditions. The dyeing properties were evaluated by measuring K/S and CIELAB values. In addition, the different fastness properties were evaluated. The effect of dyes at different mordant concentration levels with respect to their colour strength was also studied. Silk fabrics dyed with lac extract showed a light pink shade, while those dyed with alum and stannous chloride pinkish-red colour. Silk substrates dyed with CuSO4 gave a purple red colour, while those dyed with FeSO4 had a reddish-gray colour. The fastness properties ranged from fair to good, while washing fastness was poor level.

scholarly journals Extraction of natural dye from the leaves of Wild Himalayan pear (Pyruspashia) and optimization of the dyeing parameters using Box-Behnken Design (RSM)

2020 ◽  
Vol 12 (4) ◽  
pp. 497-503
Author(s):  
Manisha Kumari ◽  
Manisha Gahlot ◽  
Anita Rani ◽  
Sakshi
Keyword(s):  
Leaf Extract ◽  
Natural Dye ◽  
Silk Fabric ◽  
Alkaline Ph ◽  
Rural People ◽  
Box Behnken Design ◽  
Independent Variables ◽  
Sustainable Products ◽  
Colour Strength ◽  
Dyeing Parameters

Today universe is inclined towards eco-friendly and sustainable products. Its interest is shifting from synthetic products to natural once. The present study involves the optimization of extraction pH of natural dye and optimization of dyeing parameters for dyeing of silk fabric using response surface methodology (RSM). The extraction of dye from the leaves of Pyrus pashia (Wild Himalayan pear) was carried out in acidic, neutral and alkaline pH. The neutral pH exhibited the highest colour strength than alkaline and acidic pH. Box-Behnken Design (RSM) was used for optimization of dyeing variables. The effect of independent variables i.e. dye material concentration, dyeing time and temperature were assessed on dependent variable i.e colour strength of the dyed silk fabric sample. The optimized dyeing variables obtained for application of P. pashia leaf dye on silk fabric were 5% (w/v) dye material concentration, 70°C dyeing temperature and 45 minutes dyeing time. It not only creates a source for a natural dye but can also lead to creating employment amongst the rural people. P. pashia has a potential to colour silk fabric and can be used to dye other natural fibres such as cotton and wool which can be a step towards sustainable development. dyeing with its leaf extract can be helpful in promoting eco-friendly processing of textiles.

Study about Stability of Cacao Husk Pigment and its Dyeing Properties on Cotton

2015 ◽  
Vol 671 ◽  
pp. 133-138 ◽  
Author(s):  
Chao Tu
Keyword(s):  
Cotton Fabric ◽  
Research Work ◽  
Natural Dye ◽  
Optimal Conditions ◽  
Protection Factor ◽  
Dyeing Properties ◽  
Ultraviolet Protection Factor ◽  
Potential Applications ◽  
Ultraviolet Protection ◽  
The Stability

This research work was concerned with the stability of cacao dye and the application of this dye for cotton fabric dyeing by two techniques, namely direct dyeing and mordanting. The optimal conditions for cotton direct dyeing with cacao dye were carried out at 100°C for 60 min. It was observed that with an increase in the dye concentration, the ultraviolet protection factor values ranged good for cotton fabric. The results confirmed that natural dye have potential applications for fabric dyeing and producing UV protective cotton fabric.

Dyeing Silk Fabric with Natural Dye from Longan Leaves Using Simultaneous Mordanting Method

2016 ◽  
Vol 857 ◽  
pp. 491-494
Author(s):  
Kongkiat Maha-In ◽  
Rattanaphol Mongkholrattanasit ◽  
Charoon Klaichoi ◽  
Wiphawan Pimklang ◽  
Panida Buathong ◽  
...  
Keyword(s):  
Copper Sulfate ◽  
Ferrous Sulfate ◽  
Stannous Chloride ◽  
Natural Dye ◽  
Potassium Sulfate ◽  
Silk Fabric ◽  
Brown Colour ◽  
Colour Strength ◽  
Activity Sequence ◽  
Silk Fabrics

Natural dye solution from longan leaves was applied to the simultaneous dyeing of silk fabric and using alum, copper sulfate, ferrous sulfate and stannous chloride as a mordanting agents. The dyeing properties and effects of simultaneous-mordanting on the hue, colour strength and colour value were revealed. The results show that The K/S values increased with an increase of metal mordant concentration. The mordant activity sequence was CuSO4> FeSO4> AlK(SO4)2 > SnCl2. The obtained colour values show that silk fabrics dyed without mordant exhibited dark brown colour, while those mordanted with aluminum potassium sulfate (alum), stannous chloride and copper sulfate showed a variety of medium to dark brown shades. With ferrous sulfate, the colour shade was darker and duller. The colour fastness results showed good to very good level.

scholarly journals Micellar Electrokinetic Chromatographic Study of the Separation of an Aromatase Inhibitor and a Tryciclic Antidepressant in the Breast Cancer Treatment

2008 ◽  
Vol 3 ◽  
pp. ACI.S939 ◽  
Author(s):  
J. Rodríguez Flores ◽  
A.M. Contento Salcedo ◽  
L. Muñoz Fernández
Keyword(s):  
Micellar Electrokinetic Chromatography ◽  
Solid Phase ◽  
Background Electrolyte ◽  
Kinetic Studies ◽  
Breast Cancer Treatment ◽  
Chromatographic Study ◽  
Optimal Conditions ◽  
Sodium Dodecylsulphate ◽  
Experimental Parameters

Micellar electrokinetic chromatography (MEKC) was investigated for the simultaneous determination of letrozole, imipramine and their metabolites in human urine samples over a concentration range of therapeutic interest. Experimental parameters such as pH of the running electrolyte, sodium dodecylsulphate (SDS) concentration, borate concentration, voltage, etc were investigated. Under optimal conditions of 25 mM SDS, 15 mM borate buffer (pH 9.2), 15% 2-propanol, as background electrolyte; 28 kV and 40 °C, as voltage and cartridge temperature, respectively; resolution between the peaks was greater than 1.7. Before the determination, a solid phase extraction (SPE) procedure with a C18 cartridge was optimized. Good linearity, accuracy, precision, robustness and ruggedness were achieved and detection limits of 12.5 ng/mL for letrozole and its metabolite and 37.5 ng/mL, were obtained for imipramine and their metabolites. Real determinations of these analytes in two patient urines were carried out. Sensitivity achieved in this method is sufficient to perform kinetic studies in humans.

Sign in / Sign up

Export Citation Format

Share Document