Les Merveilles des Colorants Naturels

Les agents antimicrobien naturellement présent dans les teintures naturelles retarde la présence de bactéries dut à la transpiration, donc peut ou aucune odeurs corporelles se développent.

Les teintures naturelles que nous utilisons sont les amis de la peau, elle sont agréable au contact de la peau et sans agents irritant comme les mordants toxique. Nos mordants sont fait de cuivre et d’étain.

Les tissus teintés naturellement ont des propriétés de rapidité de lavage supérieures aux teintures chimiques, ils résistent aussi mieux aux frottements.

 Ces tissus peuvent être lavés en machine et ne nécessitent pas de lavage à sec.

Les tissus teintés naturellement absorbent les UV de la lumière, et ce pour une durée de vie illimité. Cette protection naturelle aux UV réduit considérablement les effets néfastes du soleil et sont idéal pour le sport ou l’utilisation en plein air.

Explication des Procédés de Teinture Naturelle

100% Coton Bio ou Chanvre Bio

The yarn used for dyeing is 100% combed organic cotton.. The dyes are obtained from natural sources. No synthetic or nature-identical synthetic dyes (such as alizarin or synthetic indigo), chromium or copper mordants or synthetic finishes are used. Powdered myrobalan, aluminium salts and fermented iron are used for mordant. Fruits collected from plants growing on marginal land provide yellow and earth colours. Red hues are obtained from lac dye (purified from effluent of lac-resin manufactories) and stems/ground runners of Rubia sikkimensis and R. cordifolia. None of the plants used is on the IUCN-redlist of threatened species or CITES list. Blue is obtained by dipping the yarn/fabric in a natural indigo fermentation vat and oxidizing the leuco-indigo in air. The dyed yarn/fabric is washed in hot neutral biodegradable surfactant to remove unbound colour. The waste water is treated to remove colour and reduce BOD. The sludge is composted and used as manure and the clarified water is used for irrigation. The light, wash, wet-crock and perspiration fastness properties of the dyed yarn/fabric are satisfactory to excellent. Fully dyed yarn/fabric absorbs UV-light. The fabric is machine washable using gentle/hand-wash cycle at 30°C in iron-free pH-neutral soft water with a pH-neutral mild detergent devoid of bleaching agents. The washed fabric is to be dried in shade and away from contact with bare iron metal.

Abbreviations:

  • BOD – Biological Oxygen Demand.
  • CITES – Convention on International Trade in Endangered Species of Wild Flora & Fauna.
  • IUCN – International Union for Conservation of Nature and Natural Resources.

Colours of Nature

The Colours Of Nature dye plants have been identified that can be used to re-vegetate degraded forests and provide income to rural women collecting dye plants in a sustainable manner. The solid waste is used as manure and the treated waste-water meets parameters for irrigation. All colourants are of biological origin. Grey material is scoured and peroxide-bleached. Safe mordants – aluminium salts and ferrous acetate – are used. Toxic mordants – chromium, copper and tin – are not employed. Safe and comfortable environment for workers. Continuous R&D effort to reduce energy requirements through improvements in combustion equipment, machinery and processes. Waste water treated in mixing and settling tanks gives sludge that is used as manure and water that is used for irrigation. Process adheres to internationally recognized organic standards. The traditional Indian dyer used myrobalan, alum, wood ash and dye extracts to colour textiles. These ancient processes have been documented by the British and published in 19th century monographs. We have studied them and updated the process using myrobalan, alum, soda ash and dye extracts.. In our process, the natural dye colours are light fast. For the first time we have obtained an entire range of natural colours which are light fast. We do not use chromium or synthetic alizarin to obtain our fast shades. For indigo too we do not use the highly caustic hydrosulphite process as it cannot be completely washed out of the fabric and leaches out onto the wearer’s skin. We use the traditional fermentation method as practiced for centuries to give a colourful and safe product. Many artisans in India use the cheaper and easily available nature identical dyes – synthetic indigo and synthetic alizarin – and market the produce as natural dyed. In the dyeing process, natural and synthetic indigo behave in a similar manner chemically, i.e. they both can be reduced by fermentation or by reagents such as hydrosulphite, thiourea dioxide, zinc dust and copperas under alkaline conditions. However, while natural indigo contains plant-associated polymers and inorganic matter, synthetic indigo retains harmful chemical residues from its reaction vessel. As a result, the fermentation vats of natural and synthetic indigo differ in their toxic characteristics. A frog that hops into a buried natural indigo fermentation vat can hop out of it, but if it hops into a similar fermentation vat made with synthetic indigo it meets instant death. Vats of natural indigo, lying idle at Bagru, Rajasthan, India, support crawly creatures around the rim of the lid, while vats containing synthetic indigo afford them no such hospitality. Textile chemists term synthetic indigo ‘nature identical’; biological creatures at their peril know that it is not so.

Benefits of Natural Dyeing today

Natural dyeing has many social and environmental benefits. The dye-yielding plants can be used to re-vegetate barren land; the collection of dye-yielding plants provides additional income to rural women gatherers; the waste products from the dyeing of the textiles are non-polluting and are composted to yield manure, and the dye house provides non-hazardous rural employment.