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

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

THIS TANNIN HAS A LIGHT COLOUR. RECOMMENDED FOR ENGALLAGES STEPS.

Textile dyeing : 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 oak galls are produced by the tree as a defense against the sting of an insect in buds. The tree excretes a tannin-rich substance that becomes harder and forms a gallnut.

Gall oaks are present around the Mediterranean Sea and in Minor Asia. Aleppo galls are the most reputed because of their highest tannin content (50 to 70 %).

Oak galls have been used since Antiquity. Tablets of Sumerians’ cuneiform writing dated 3000-2000 B.C. mentions the use of galls in the manufacture of leather.

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Main constituents : condensed tannins (proanthocyanidols) and flavonols (quercetin).

Uses :
Pre-treatment of vegetable fibers : cutch extract is rich in condensed tannins that enhance the mordant fixation on cellulosic fibers. This tannin is dark and it is a good source for brown shades. It will bring a thorough basis colour to your textiles.

Natural dyeing and textile printing : this plant extract also allows to dye with or without mordant. There is enough tannin in cutch so mordanting with another tannin is not required. The resulting shades cover almost all the range of browns. Cutch has excellent light and washfastness properties.

Other uses : tannery, glues for wood works.

The plant :
Acacia catechu is a small thorny tree native from South Asia. It is grown in Indonesia, East Africa and in tropical America. It has been used for long times by the dyeing and tannery industries. The wood extract of this acacia tree is rich in tannin (until 60 %). The former “catechic tannins” class was named after the name of this species.

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Natural dye – Main molecules : haematoxylin (non oxydized form), haematein (oxydized form – minor), tannins.

Uses :
Natural dyeing and textile printing (animal and vegetable fibers, leather) : Purple, grey, black, even navy blue shades according to the formula, the mordant and the fiber. For deep blacks, the logwood extract must be used in combination with gallotannins (extracted from sumach gallnut or oak gallnut for instance) and a  mordanting with ferrous salts. Logwood has good washfastness and moderate lightfastness.

Other uses : Preparation of natural inks, corrosion protection.

The plant :
Logwood is a red wood tree originated from the Bay of Campeche, in the Southeast of Mexico. It was introduced and widely naturalized in the XVIIIth Century in South America and in West Indies. It was first imported in Europe as a dyeing matter, shortly after the arrival of the Spanich in Central America. But for many years (from 1581 to 1662), an English law prohibited its use in order to protect the dyes that were already used. During the XIXth Century, it is the basis for most of the black clothes, very widespread at that time. It is currently found in many tropical countries.

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