Organic cotton & natural dyes

Shou Leaf Collection produced entirely with organic cotton and 100% natural dyes.

Provenance of natural dyes

Mineral pigments come from clays and minerals. Ancient Pigments have been used by all cultures, at least since the first modern humans used ocher to dye, paint walls and objects, about 70.000 years ago in South Africa. This class of pigments is collected all over the world for their colors characteristics, by individual artisanal miners and small companies that prepare these pigments using centuries-old traditional methods, creating needed jobs at the local level. These mineral pigments are commonly used as cold used dyes, plasters and paints. they can also be used on textiles, after being ground.

Benefits

The earth's natural mineral pigments are produced from renewable sources (extracted from artisanal mines), having no impact on the environment, unlike toxic and non-renewable petroleum-based products. Its preparation and dyeing process also does not require a lot of energy and chemicals, it only needs soy-based or acrylic-based fixatives. These pigments provide enhanced performance in thermal and chemical stability, UV protection and infrared (IR) reflectivity. They are very stable pigments, not interfering with substances found in the surroundings. They can withstand the most chemically aggressive environments and still retain their color. These will not degrade in the presence of ozone, acid rain, sulfur or other air pollutants common in industrialized areas. Its color remains solid, given the great stability of the pigments that originated it, with satisfactory results in laboratory tests. These do not migrate and do not dissolve or fade in contact with solvents. Natural dyes of mineral origin can also be classified according to the color from which they originate.

Classification

1. Red Pigments

Red Ocher and Realgar are some of the examples of red pigments derived from minerals.

Red ocher is a very stable compound and is unaffected by light, acids and alkalis.

Red ocher was used by monks to color their garments

2. Yellow Pigments

Yellow Ocher and Raw Sienna are classified as yellow pigments due to their range of yellow colors.The pigment is prepared from earth by sorting, grinding and washing. Along with ocher and amber, it is the first pigment to be used in human cave paintings.

3. Green Pigments

Terre-Verte, Malachite and Verdigris are examples of green pigments. Among them, the terre-verte has been the most widely used from very early on. The color of this pigment, depending on the source, varies from place to place. Shades range from yellow-green to greenish-gray and are unaffected by light or chemicals.

4. Blue Pigments

Pigments blue, ultramarine blue and azurite are the most commonly found for these pigments. The ultramarine blue pigment is an intense colored blue obtained from the lapis lazuli mineral (semi-precious stone). Lapis lazuli is mainly found in Afghanistan and some other countries. It has been extracted and used for various purposes since ancient times.

Dyeing Process

Cationation:

Add natural agent at room temperature, increase temperature to 35 degrees Fahrenheit and operate for 30 minutes.

Dyeing:

Add the natural earth pigment at room temperature and increase the temperature to 35 degrees centigrade, dye for 20 minutes and add the natural setting agent, then dye for 10 minutes, and rinse with cold water. The use of this process has the advantage of dyeing at low temperatures, which leads to a reduction in the amount of energy and significant reductions in water during dyeing, thus reducing the ecological footprint associated with the process.