An increasingly natural retanning process by Smit & ZoonSmit & Zoon is testing products made of lignin with the purpose to increase the range of organic product offerings, with regard to the corporate social responsibility which aims to get a sustainable supply chain by 2025.

Jan 02, 2018
Posted in: , Materials

Lignin is a polyphenol found in many plant cell walls with the purpose of bonding and strengthening each other’s fibres, to add compactness and resistance to the plant. It composes approximately 25-30% of the mass of each tree representing, after polysaccharides, the richest polymer in the plant world. Due to its properties (especially resistance to bacterial degradation), the R&D Department of Smit & Zoon is testing – within its range of retanning “bio-based” materials – products made of lignin, with the purpose to increase the range of organic product offerings, with regard to the corporate social responsibility which aims to get a sustainable supply chain by 2025.

The results of ongoing tests seem to be encouraging: «The first tests show good results on leather», says Dr. Yujie Ma, researcher at Weesp Laboratory. «Lignin-based products bring about fullness and softness and result in a uniform and intense dyeing». The Dutch company, which has obviously protected its studies with a patent, is the first in Europe to adopt polyphenol in retanning products.

 

Smit & Zoon https://www.smitzoon.com/

Smit & Zoon develops and produces chemicals used in the manufacturing and finishing of leather for well-known brands of shoes, […]

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