Natural beige | GREENING https://www.green-ingredients.com/en/ Couleurs & ingrédients naturels Produits & Services Tue, 09 Dec 2025 17:14:19 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.2 https://www.green-ingredients.com/wp-content/uploads/2021/04/Icon.jpg Natural beige | GREENING https://www.green-ingredients.com/en/ 32 32 Chestnut extract from Occitania (South of France) https://www.green-ingredients.com/en/product/chestnut-extract-occitania/ Wed, 05 Jun 2019 09:41:50 +0000 https://www.green-ingredients.com/?post_type=product&p=10076 The CHESTNUT EXTRACT from OCCITANIA is manufactured in the South of France from local resources (regrowth of chestnut trees) and under a virtuous and sustainable approach. The plant tannins (elagic type) are extracted by using the water from wood and from the recycling of extraction condensates, so in closed production without any use of external water, nor waste water production. A VALUABLE CO-VALORIZATION since the wood after extraction is then used for the production of agromaterials for construction.

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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]]> Acacia extract https://www.green-ingredients.com/en/product/acacia-extract/ Mon, 13 Oct 2014 15:45:35 +0000 http://www.green-ingredients.com/?post_type=product&p=3991&lang=en
Acacia extract
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Acacia extract

Price range: 7.30 € through 51.00 € HT

Prices include VAT.

SKU: 97138 Category: Tags: , , , , ,

Acacia extract is a plant extract rich in tannins obtained from black acacia (Acacia mearnsii De Wild). This species is also named "black Wattle", "Mimosa extract" or "mimosa" in leather industry. Main constituents : the acacia extract contains 60 - 65 % of condensed tannins.

Uses : Pre-treatment of the vegetable fibers : Acacia is very rich in tannins which allow the pre-treatment of cellulosic vegetable fibers to improve the mordant fixationduring the mordanting. However, this tannin being naturally colored, it will bring a thorough color to your fibers. Textile natural dyeing : Acacia extract also allows to dye with or without mordant. The resulting shades cover a wide range from beige to brown, grey and almost black with ferrous (iron) sulfate, for instance. The blacks will be obtained in combination of acacia with other tannins (tara for instance), extracts (logwood extract) and with ferrous (iron) sulfate. Other uses : tannery, glues for the wood industry, metals corrosion protection.

Products not intended for food.

The plant : Black wattle is the largest source of plant tannins in the world. It is native of the southeast of Australia and was introduced into numerous tropical and subtropical regions. There are very big commercial plantations in South and East Africa (Kenya, South Africa and Zimbabwe), in Brazil and in India. The bark of black acacia contains 30 to 40 % of tannins (pro-anthocyanidines) and flavonoids (chalcones).

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]]> Sumach gallnut extract https://www.green-ingredients.com/en/product/sumach-gallnut-extract/ Mon, 13 Oct 2014 15:44:50 +0000 http://www.green-ingredients.com/?post_type=product&p=3996&lang=en SUMACH GALLNUT EXTRACT is a natural extract prepared from the Chinese sumach gallnut (Rhus semialata Murr.). This gallnut extract was especially developped for textile and natural dyeing uses : a very high content in tannic acid combined with a very low colour. 

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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]]> Oak gallnut extract https://www.green-ingredients.com/en/product/oak-gallnut-extract/ Mon, 13 Oct 2014 15:37:28 +0000 http://www.green-ingredients.com/?post_type=product&p=4001&lang=en OAK GALLNUT EXTRACT is a natural extract prepared from oak gallnut (Quercus Infectoria Olivier). This gallnut extract was especially developped for textile and natural dyeing uses : a very high content in tannic acid combined with low colour. 

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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