Main constituents: hydrolysable tannins > 95%

Use : Pre-treatment and mordanting of vegetable fibers: Plant tannins is very rich in tannins. Tannic acid allows the pre-treatment of cellulosic plant fibers (called engallage in this case) in order to improve the fixation of the mordant during mordanting. THIS TANNIN PROVIDES A LIGHT COLOR.

Natural dyeing and textile printing : all fibers can be dyed with PLANT TANNINS. The colors obtained have slightly better lightfastness.
For bright colors, it will be used in the first bath followed by the mordant of aluminum salt. We recommend the ALUMINUM LACTATE, manufactured from renewable raw materials. In the presence of FERROUS SULFATE or FERROUS LACTATE (shading process after tannin), this extract forms very solid and dark complexes, to create numerous grey shades grays. In the presence of TITANIUM, a bright orange is obtained.

Not suitable for food use.

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Uses : Natural dyeing and textile printing : this plant extract allows to dye any type of fibers, mordanted or not. The tannins of gallic type (tannic acid = hydrolyzable tannins) naturally bind to cellulosic fibers. The shades are obtained depending on the concentration of bath and mordant : beige, fawn (not mordanted or aluminium), greys in presence of iron, orange in presence of titanium. This plant was part of the recipe of Noir de Bédarieux, our city. It was also used and described in the recipes of Paul Gout’s 157 colours or those of Antoine Janot’s 85 colours.
Other uses : Tannery.
Do not use for food.

The plant : Coriaria or Redoul (litterally ‘myrtle-leaved corroyere’, Coriaria myrtifolia L.) is a common species in the South of France and Catalonia. This shrub which has leaves similar to myrtle and can be 2-3 m height, is present along paths and rivers. WARNING: the fruits of this plant are very toxic and can sometimes be confused with brambleberries. The literature also indicates that the aerial parts are toxic. We have carried out research and analyzes which show that the most toxic parts are the seeds (the fruit pulp is much less so). Our extract is made from material without any fruit, using an optimized extraction process and our analyzes demonstrate that toxic molecules are only detected in trace amounts in the extract.

Historical uses and Noir de Bedarieux : Redoul or coriaria has been known and used since the Middle Ages in the South of France and in Catalonia. Narbonne and Montpellier were by far the largest importing centers for Catalan corroyère in Languedoc. During the first half of the 14th century, the city of Montpellier, the main center of demand, was gradually overtaken by Narbonne. Its name comes from the Latin corium or corroyage, indicating its use for tanning hides, its first use. Redoul is the basis of one of the technical innovations of the Languedoc and Catalan cloth dyers of the Middle Ages: it made it possible to obtain a beautiful black by giving a second dye with tannins and iron salts to a sheet which had already received a “foot” of pastel which could, in this case, be significantly less intense. Closer to us, books on the chemistry of dyes from the 19th century describe the production of Noir de Bedarieux, of which redoul is the main ingredient. GREEN’ING being located very close to Bédarieux, it was obvious for us to revive this color.
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Use :
Natural dye – mordanting and nuancing any fibers : iron is the basis of all grey and black shades by reaction with natural tannins. In a general way, it is used to darken colours and make them deeper. It slightly improves light- and wash-fastness from those obtained with aluminum mordants. Recommended use at 1-3 % of the Weight Of Fiber (WOF). A higher % may alter the structure of proteinaceus fibers and make them breakable.

For grey and black shades, we also recommend to use our extracts of logwood, oak gallnut, sumach gallnut, tara, acacia. The best results will be obtained with combinations of these extracts.

Also, combinations of aluminum and iron mordants or a last (very light) iron bath after a aluminum-mordanted-colour will widely increase the number of shades.

Products not intended for food.

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Main constituents : hydrolysable tannins (elagic type).

Uses :
Natural dye and textile printing : this plant extract allows to dye any type of mordanted fibers. Beige, brown shades according to the formula. Grey in the presence of iron.

Other uses : tannery

Products not intended for food or dietary supplements.

The plant :
The chestnut tree can reach 25 to 30 m in height. This is a spontaneous species around the Mediterranean sea. It is also cultivated in all temperate Europe, in Northwestern Africa, in the Middle-East and in Northern America.

The large-scale use of chestnut tannin arose only at the end of the XIXth Century while appeared processes for black dyeing of silk and its use in tannery. The coloring principle, which gave a dark reddish shade to skins, was then separated from the tannin extract.

An overexploitation of the resources and diseases severely affected both European and American chestnut groves that have considerably reduced today.

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THIS PRODUCT IS NOT SIMPLY GROUND TARA PODS BUT AN EXTRACT WITH A HIGHER TANNIN CONTENT

Main constituents : Gallic acid derived hydrolysable tannins (around 5 gallic acid units per tannin unit). Tannin content > 95%. This tannin has a low colour.

Uses :
Mordanting cellulose fibers : Tara extract is rich in tannins. In pre-mordanting baths, tara extract enhances the mordant fixation on cellulosic fibers, usually more difficult to dye.

Dyeing and textile printing of natural fibers : Tara extract provides shades from beige to grey and black according to the dyebath. Tara also allows to dye in purplish black the wool and cotton, with iron sulfate.

Other uses : tannery, iron gall ink preparation.

Products not intended for food.

The plant :
Tara is a thorny shrub native from Peru. It is a widely spread species in Central America. Peru is the main producer of tara where it is grown in agroforestry systems. Pods are an important source of tannins. Tara gum is produced from the seeds. This plant is also used by local populations for its traditional medicinal properties.

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Main constituents : Gallic and ellagic acid derived hydrolysable tannins.

Uses :
Mordanting cellulose fibers : In pre-mordanting baths, myrobalan extract enhances the mordant fixation on cellulosic fibers, usually more difficult to dye (tannins ellagic bring a light yellow bottom), but also on the protein fibers, for the obtaining of numerous nuances.

Dyeing and textile printing of natural fibers : Shades from yellow brownish to brown for the cotton and the wool, can be obtained with a mordançage in the alum. In combination with the iron, it is one of the bases of numerous dark nuances, black, grey.

Other uses : tannery, ink preparation.

Products not intended for food.

The plant :
Chebulic Myrobalan (Terminalia chebula Retz) grows in the forests of diverse regions of Asia (India, Nepal, Burma, China and Bangladesh). It had been introduced in tropical Africa where individual trees are sometime cultivated. It is the medium-sized tree that recognizes itself in its fruits with measuring two in four centimeters and the color of which varies between the black, the brown-orangy color and the yellow when ripe.

Fruits of Terminalia chebula are rich in tannins and are used on a great scale in India in tannery. They are also used for the dye and the printing, at the same time as auxiliary ingredients and as colouring agents; their tannins act as mordents and fix colouring agents on the cotton. The myrobalan is also used as a mordant and in the silk spinning industry to give some weight back to degummed silk.

The Chinese doctors used the myrobalan for 1000 years to handle numerous diseases as well as to look after wounds and strengthen the body. The plant is also used in medicine in India from the antiquity.

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Use :
Natural dye – mordanting and nuancing any fibers : iron is the basis of all grey and black shades by reaction with natural tannins. In a general way, it is used to darken colours and make them deeper. It slightly improves light- and wash-fastness from those obtained with aluminum mordants. Recommended use at 1-3 % of the Weight Of Fiber (WOF). A higher % may alter the structure of proteinaceus fibers and make them breakable.

For grey and black shades, we also recommend to use our extracts of logwood, oak gallnut, sumach gallnut, tara, acacia. The best results will be obtained with combinations of these extracts.

Also, combinations of aluminum and iron mordants or a last (very light) iron bath after a aluminum-mordanted-colour will widely increase the number of shades.

Iron gall inks: The iron sulfate is the basis of this historical ink where it is associated with tannins, in particular our very rich gallnut extracts from oak or sumach.

Paintings and wood treatment : ferrous sulfate is used for reactions with tannins (formation of complexes) and its antifungal properties. It gives to wood tipsy finishes or darkens them according to species.

Other uses : Gardens and lawns (antimoss).

Products not intended for food.

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Main constituents : Hydrolysables tannins > 95 %.
Yellowish powder in granular form producing almost no dust during handling. Very good solubility in cold or hot water.

Uses :
Pre-treatment of vegetable fibers : The high tannic acid content of this gallnut extract is perfect for the pre-treatment of cellulosic fibres (named engallage in this case) to improve the fixation of mordant during the mordanting step.

THIS TANNIN HAS A VERY LOW COLOUR. RECOMMEND FOR ENGALLAGE STEPS.

Natural dyeing and printing textile : any fiber can be dyed with oak gallnuts. It does increase lightfasntess of the resulting colours. In presence of iron sulphate, this extract forms very solid and very dark complexes. This property allows to use the extract of gallnut for shading (with iron sulphate) after dark shades (madder, indigo) on silk and wool. This makes these shades even darker while limiting the iron sulphate (which makes these fibers weak).

Other uses : tannery, manufacture of iron gall inks.

Products not intended for food.

The plant : 
The Chinese sumach is a shrub of 2 to 10 m tall. It is common of the Northeastern India, in China, Japan, Korea and Indonesia. Galls are caused by the sting of an insect on leaves or petioles. The gallnuts of Sumach are very rich in hydrolysables tannins (tannic acid).

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