Leather

Products and services for the leather industry

We know that for the tanning industry, maintaining a balance in the transformation of leather with minimal environmental impact goes beyond a commitment. This environment, where cost associated with sustainability is fundamental, motivates us to innovate every day, seeking efficiency and competitiveness, with ecologically responsible products.

There have been 80 years of tradition in this important and consolidated sector, supplying the world tanner market with a wide range of vegetable, natural and modified tannins, synthetic tannins and chemical specialties.

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Black wattle vegetable tannins

Black wattle vegetable tannins

From renewable and sustainable source

From renewable and sustainable source

Natural look leathers

Natural look leathers

Ecological tanning

Ecological tanning

FAQs - Frequently Asked Questions

What is the most used vegetable tannin extract for tanning and retanning leather in the world?

The most used vegetable tannin extract in the world is Acacia Tannin.

Acacia tannin is extracted from the bark of the Black Acacia tree, which comes from forests located in southern Brazil. Seta's Acacia Tannin extraction process is unique, innovative and totally sustainable.

Acacia tannin is of the condensed or catechin type.

Acacia Tannin, in addition to being a biodegradable product, is very versatile, as it can be used both in the tanning of chrome leathers of any thickness and softness, as well as in the tanning of 100% vegetable articles of any type. It can be used both to produce light and soft vegetable leathers and metal free type, as well as heavy items such as soles and shoe soles. Very light and dark vegetable leather can be produced due to the different types of shades of each line that Seta produces. It is easy to use as it has good water solubility, good penetration speed, can be used in combination with other plant extracts and synthetic tannins, improving the distribution of retanning agents, dyes and fatliquors. It can be used in any vegetable tanning system, whether it is fast in drums or static in tanks. Acacia Tannin brings numerous benefits to leather as a natural look, “burn” properties, grain tightness, filling, excellent sandability and print retention.

Sim, curtir couro com tanino faz com que a pele fique mais resistente, inclusive contra decomposição.

Isso acontece porque no processo de curtimento de couro o tanino se liga às proteínas da pele, o que cria uma estrutura mais estável.

Acacia tannin is essential in the production of any type of vegetable leather, including shoe soles, midsole, soles and straps for belts, straps for pets, saddles for horses, artifacts in general, insoles, heels, sandals. leather, bags, etc.

O curtimento vegetal, que utiliza tanino de acácia negra, é um processo natural que resulta em um couro mais rígido e resistente, ideal para produtos como solas de sapatos e selas.

Esse tipo de couro é mais ecológico, já que o tanino é uma substância natural extraída da casca e das folhas da acácia negra, sem o uso de produtos químicos sintéticos.

Por outro lado, o curtimento ao cromo é mais rápido e resulta em um couro mais flexível e macio, frequentemente utilizado em roupas e estofados.

No entanto, o curtimento ao cromo é menos sustentável, pois envolve produtos químicos que podem ser prejudiciais ao meio ambiente se não forem adequadamente gerenciados.

O curtimento com tanino de acácia negra é considerado mais sustentável e ecológico em comparação com o curtimento do cromo. O processo utiliza taninos naturais, que são biodegradáveis e têm menor impacto ambiental. Além disso, a acácia negra é uma fonte renovável, e o processo de curtimento vegetal não gera resíduos tóxicos, minimizando a poluição de água e solo.

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