Services and Products

Plant based food and fabric dyes.
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Hydroponic Greenhouse Architecture
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Corporate contract farming as per client needs.

Natural dyes

Until about 150 years ago all dyes were natural substances, derived mainly from plants, animals and mineral sources. Using natural products to produce a fast colour in a variety of shades was a real art. It required considerable knowledge as the dyer had to deal with substances as wood, tree, bark, plant roots, stems, leaves flowers mineral s and shell fish to extract dyes. In recent times in the ‘Global world’ there is an increasing demand for natural dyes because of economic, aesthetic and environmental reasons. The WHO recommends the same; hence restrictions on the use of many synthetic colourants and the relative instability are leading to the use of natural dyes as an alternate source. Dyes have been defined as intensely coloured substances used for coloration. They are retained in substances by physical adsorption, mechanical retention, the formation of covalent chemical bonds or of complexes with salts or metals, or by solution.
Natural dyes and pigments are obtained from animals, plants and minerals without any chemical processing. When used as textile dyes, they are mainly mordant dyes although some belong to other groups (vat, solvent, pigment, direct and acid). Most of the historically important colorants are members of the anthraquinone, naphthoquinone, indigoid and carotenoid groups.
The coloring substances like stains and paints colour only the surface, however the dyes, penetrate all the fibres being colored and combine with it either physically or chemically. Once dyed the dye cannot be completely removed from the fibres. Nevertheless, dyes vary in their ability to resist fading from washing or dry cleaning, or from exposure to acids, alkalies, heat and sunlight. The dyes with a strong ability to resist fading are termed fast dyes. Several kinds of natural dyes have been used in all kinds of industries to colour textile, paper, leather, wood, medicine, food, fur and feathers. In India, there are more than 450 plants that can yield dyes. In addition to their dye-yielding characteristics, some of these plants also possess medicinal value. Natural dyes are environment friendly for example, turmeric, the brightest of naturally occurring yellow dyes is a powerful antiseptic which revitalizes the skin, while indigo gives a cooling sensation. During recent years, the dyes derived from natural sources have emerged as an important alternative to synthetic dyes. Being biodegradable and highly compatible with environment, the natural dyes are free from the defects associated with synthetic dyes such as harmfulness to human body, pollution and wastewater problem.
It is urgent to strengthen a space for a better understanding and appreciation of the natural dyes on textiles, especially cotton and silk to create awareness of their importance as means to preserve and to disseminate cultural values and as a medium for contemporary expression.

Fibres

Fibres in the broad sense have at various time played a part in providing humans with shelter, vessels in which to carry water and cook food and thread for making fabrics. While most of the world has abandoned mud and wattle construction, thatched roofs, or baskets smeared with clay as water and cooking utensils, the important of plant fibre as the source material remains they are classified into Textile fibre, Natural fibre, Vegetable fibre, Wood fibre, Animal fibre, and Mineral fibre.
Almost one half of the world’s requirements for textile fibres are met by cotton. Cotton consists of 88-96% cellulose, with the rest being protein, pectic substances, ash and wax. Cotton fibres are relatively stronger when wet. Cotton also absorbs moisture readily which makes cotton clothes comfortable to wear in warm weather. Cotton fibres are weakened by acids but are resistant to alkalis. It is therefore, preferable to use alkali soluble dyes on cotton. Silk fibres are proteinaceous in nature and are produced by silkworm for the construction of cocoon. The silk proteins are fibrion and sericin. Degummed silk fibres are of significance in commercial bleaching and dyeing. Strong acids and high temperature cause severe damage to silk fibres. Dyeing of silk involves careful selection of water and mild alkali soluble dyes and processing at moderate temperatures.
Apart from textile fibres natural dyes are also used to colour leather, furs, hairs, feathers, matting, basketry, bone, ivory, wood and cosmetics. One of the world famous handicrafts of Tamil Nadu is the superfine silk mat woven by the craftsmen of Pathamadai (a small town in Tirunelveli District). These mats continue to be in the threshold of international market for handicrafts. These silk mats are unique, eloquent and extraordinary because of the artistic work, patterns inscribed and colours used. The superfine silk mats are woven from a sedge culm. The culm is split into fine strands and then dyed with natural colours.