Ninge Gowda K N

The objective of eco-friendly textile processing is not only to use organic and nontoxic materials but also to reduce the consumption of natural resources since overcoming environmental challenges is one of the important components of sustainability. Further, ensuring that these processes enhance product functionality. Plasma treatment is one of th...

Water management is a social concern, the scope of plasma functionalization has tremendous scope and opportunity for research in science for innovation. In this paper the major concerns of water, energy, chemical is addressed by the research on plasma technology on knitted bamboo cotton blended fabrics

Objective: Four different extracts of Araucaria columnaris (bark peel) and Cosmos sulphureus (flowers) were screened for their phytochemical composition, and free radical scavenging activities.Methods: DPPH method was used to test the antioxidant activity for extracts.Results: Among the different extracts tested, the methanol extract of both the pl...

Sustainable development remains an important global vision. Innovation in textiles refers to designing for aesthetics, comfort and sustainability. In light of environmental regulations and concerns the textile industry has become more interested in plasma applications as a novel finishing technology that significantly reduces toxic-chemical polluti...

Eco-friendly dye was extracted from the flowers of Plumeria rubra. This dye was applied on cotton and silk fabrics with 2%, 5% and 10% o.w.f. dye concentrations in the presence and absence of alum, tannic acid and tartaric acid mordants using the exhaustion method. The color strength, CIE lab values and fastness properties of the dyed samples were...

Eco-friendly dye was extracted from the flowers of Plumeria rubra. This dye was applied on cotton and silk fabrics with 2%, 5% and 10% o.w.f. dye concentrations in the presence and absence of alum, tannic acid and tartaric acid mordants using the exhaustion method. The color strength, CIE lab values and fastness properties of the dyed samples were...

Since the last decade, the application of natural dyes on textile material has been gaining popularity all over the world, possibly because of the increasing awareness of issues concerning the environment, ecology and pollution control. The present paper investigates extraction of natural dye from leaves of the plant Vitex negundo, which is an abun...

The dried leaves of Madhuca longifolia has been evaluated for their potential as a source for natural dyeing of silk. Dye has been extracted under optimum conditions such as extraction pH (10), time (60 min) and temperature (95°C). The extracted dye has been applied on the silk fabrics and a range of shades are obtained using different methods with...

The aim of this research work was to study the surface properties and sorption characteristics of air plasma treated modal fabrics.The wetting property of a solid surface is one of the most important relating to the solid surface. Low temperature glow discharge plasmatreatmentis broadly usedforthe modificationofsurfaceproperties ofsolidpolymermater...

Dye has been extracted from the leaves of Kydia calycina for its application on silk. The sensitivity of the dye extract to pH and temperature was studied. The dye exhibited acute sensitivity to pH in terms of its solubility and color. Color values and color coordinates in terms of K/S and L* a* b* C and h were examined. The extracted dye showed ex...

Dyeing behavior of natural dye extracted from the bark of Syzygium cuminii L has been studied on silk fabric. Colour values and colour co-ordinates were examined in terms of K/S and L* a* b* C and h. A range of shades were obtained by using various mordants and mordanting techniques. Dye was tested for some of the eco-parameters using atomic absorp...

Couroupita guianensis, known as Cannon ball is an evergreen tree found widely in tropical and subtropical regions of the world. In India it is grown as an ornamental tree and is known for its medicinal properties. In the present study, a natural dye extracted from Cannon ball flowers was used to investigate the dyeing, fastness and antimicrobial pr...

Eco-friendly natural dye extracted from Swietenia mahogany leaves, has been used as eco-friendly dye to cotton and silk fabrics. The dyeing was carried out with and without the use of mordants and the fastness properties of the fabrics were determined. Colour values in terms of K/S and L* a* b* C and h colour coordinates were examined. A wide range...

Silkworm Bombyx mori L. is prone to be attacked by pathogen and more notably Beauveria bassiana L. Bed disinfectant Kavach was inoculated in different dosages (0.2%-1.6%) to IV and V instar silkworms of both bivoltine and cross breeds. Potency of disinfectant was assessed for the parameters such as survivability, larval duration, physiological, che...

Moisture management is the ability of a fabric to transport moisture away from the skin to the garment's outer surface in multi-dimensions and it is one of key performance criteria in today's textiles for garments for various end uses. This property has a significant effect on the human perception of moisture sensations as well as the growth of mic...

Dyeing behavior of natural dye extracted from the leaves of Psidium guajuva L on silk fabric has been studied. Color values and color coordinates in terms of L∗, a∗, b∗, C, and h were examined. A range of shades were obtained when dyed with different mordants and mordanting techniques. The extracted dye was tested for some of the ecoparameters usin...

Casuarina equisetifolia (Casuarinaceae) is a plant that is used in folk medicine for the treatment in diarrhea, cough, ulcers, toothache, and diabetes. To evaluate the scientific basis for the use of the plant, the antimicrobial activity of bark, leaves and fruit extracts were investigated against five medicinally important bacterial strains, namel...

The use of natural dyes as an alternative to synthetic dyes has attracted increasing attention in view of hazards and environmental pollution caused by synthetic dyes and pigments. Natural dye was extracted from Casuarina equisetifolia bark, which hitherto was treated as waste material. The dye uptake and fixation as well as the influence of mordan...

Plasma treatment is an emerging surface modification technique used to improve the performance of textile materials without using chemicals. The present work is concerned with the effect of air plasma treatment on the bamboo knitted fabric. The time of the treatment has been varied and the influence of these on comfort characteristics such as therm...

A simple wickablity factor has been developed to characterise the wickablity of fabrics. The vertical wickablity test has been used to obtain the wicking parameter that quantifies wickablity of fabric treated with air plasma. Results show that the new wickablity parameter 'W' is higher than that of untreated control. Thus this method is a useful to...

Natural colourant extracted from the fruits of Ficus racemosa is utilized for colouration of silk fabric. Different mordants at varying concentrations were used for pre-mordanting silk to study their effect on the colour values and fastness properties of the dyed samples. The dye extract was found to have good affinity towards silk even without the...

The colour components from the flowers of Tabebuia argentea have been isolated and characterised as rutin and epigallocatechin gallate using spectral techniques. Adsorption kinetic and thermodynamic studies of these colour components on silk yarn have been investigated. It is noted that the adsorption is an endothermic process. The dyeing studies h...

Baicalein, a trihydroxy flavone from the bark of Terminalia bellerica was identified as a natural colorant. The potential of the natural color component on silk yarn was tested. Its properties of color fastness with regard to light, washing and crocking were investigated and found to be satisfactory. Thermodynamic parameters were evaluated. The pos...

The color components extracted and isolated from the fruits of Lagerstroemia indica were characterized by NMR, mass, IR and UV/visible spectral techniques. The bio-colorants isolated were found to be quercetin and apigenin. The dyed samples exhibited good colour fastness to washing and perspiration. CIE Lab values have also been evaluated. The rate...

Spectral techniques have been used to identify and characterize the color constituent of the bark of Albizia lebbeck. The dyeing potential and color fastness properties of the extract have been evaluated on silk yarn. Pre-mordanting of the dye is found to be better than post-mordanting, particularly with alum which gives higher color strength value...

The use of synthetic dyes causes environmental pollution as majority of these dyes are toxic and non-biodegradable. Natural dyes on the other hand have proved to be eco-friendly, biodegra- dable and highly compatible with the environ-ment. Consequently, dyes derived from natural sources have emerged as important alternatives to synthetic dyes. In t...

One of the most important thiazine dyes is methylene blue (MB), which is extensively used in the dyeing industry. It also facilitates a number of biological applications. Methylene blue dye is not significantly hazardous, but it can lead to various harmful effects. Among the physicochemical processes developed to remove this dye from wastewater tex...

The colour component from the bark of Macaranga peltata has been extracted and, using spectral techniques, the main colouring ingredient has been identified as ellagic acid. The dyeing properties of the extract on silk have been studied. The colour coordinates of the dyed samples were found to be in the yellow–red quadrant of the colour space diagr...

The kinetics of oxidation of sunset yellow (SY) by sodium-N-chloro-p-toluenesulfonamide or chloramine-T (CAT) was studied spectrophotometrically in HClO4 and NaOH media with Os(VIII) as a catalyst in the latter medium at 298K and 303K, respectively. In acid medium, the experimental rate law is −d[CAT]/dt=k[CAT]0[SY]0[HClO4]−0.46. Alkali accelerates...

Triphenylmethane dyes viz., p-rosaniline, crystal violet and ethyl violet (henceforth abbreviated as Dye) have been extensively used as colorants in textile industries. Effluents containing these dyes released by the industry causes significant environmental problems. Hence decolorization of dye effluents has acquired increasing attention. The oxid...

The kinetics of the oxidation of the azo dye C.I. Acid Red 27 (Amaranth) by sodium N-chloro-p-toluenesulfonamide (Chloramine-T, [CAT]) in HClO4 medium were studied spectrophotometrically at 293K. The reaction rate shows first-order dependence on [CAT]0 and [dye]0 and an inverse-fractional order on [HClO4]. Activation parameters for the composite re...

Increased awareness and concerns about the environment and pollution have paved way for Eco-friendly processes in chemical processing. Conventional soap- soda boiling method of degumming silk has many disadvantages coupled with the convenience of time. The enzymatic degumming processes have been attempted earlier and are gaining importance due to l...

Natural dye extracted from the nuts of Areca catechu grown abundantly in India, is utilized for coloration of silk fabric. Different mordants at varying concentrations were used on silk for pre-mordanting to study their effect on the colour value and fastness properties of the dyed samples. Silk fabrics were also dyed with different mordanting tech...

Degummed silk fabric was dyed with the flower extract of Spathodea campanulata along with varying concentrations of different mordants. Colour values with respect to K/S and CIE L* a* b* were influenced by the mordants and the mordanting techniques. Pre-mordanting was found to be better in the case of stannous chloride whereas meta-mordanting was f...

Enzyme application in the field of textile processing is a well-known fact. With the advent of neoteric technological implementations into the textile processing, a more detailed recital about the enzymatic applications adopted into textile scenario has been depicted. The eco-friendly drive currently in vogue coupled with pollution consciousness an...

The silk dyeing industry effluents were examined for the induction of mitotic abnormalities in Allium cepa root system. Cytotoxicity of the effluent was studied by treating Allium cepa roots with different concentrations of effluent (25, 50, 75, 100%) for different durations (6, 12, 24, 48h) along with control. The effluent inhibited cell division...