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Testing “Dowell” acrylic impregnation agents for the article with impregnation.

27.05.2025

“Dowell” acrylic impregnation agents have been tested in the article with impregnation at one of the Russian tanneries. A combination of three products was tried: • «Dowellic RA 1861» - ultra-fine acrylic resin with good penetrating ability, especially for impregnation of leather, which keep softness and tightness of the leather without forming a film on the grain; easy to buff. In combination with «Dowellic RA1863» or «Dowellic RA1865», the impregnation efficiency is improved and the tendency to looseness in loose areas is eliminated;...

Testing the recipe of the article “Shoe crust” with the use of “Dowell” chemicals.

23.05.2025

In an experimental shop at one of the Belarus tanneries, a recipe has been tested for obtaining the article "Shoe Crust" in thickness of 2.0 - 2.2 mm using “Dowell” chemicals (China): • «DOWELLTAN RV13» - a retanning agent based on acrylic resin. In chrome tanning «DOWELLTAN RV13» significantly improves fullness and density of grain and reduces stickiness, has an excellent dispersing effect and accelerates the penetration of vegetable tannins. It can also be used instead of vegetable extracts. It has excellent light resistance and heat resistance, and has bleaching ability;...

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Home / News / Joint technological visit of specialists of the company Shebekinskaya industrialnaya khimiya, LLC (Russia) and the company Sichuan Dowell (China).

Joint technological visit of specialists of the company Shebekinskaya industrialnaya khimiya, LLC (Russia) and the company Sichuan Dowell (China).

30-07-2024

A joint technological visit has been conducted by specialists of the company Shebekinskaya industrialnaya khimiya, LLC (Russia) and the company Sichuan Dowell (China) for testing dyeing-fatliquoring recipes:

«Show crust» in black and brown colours, thickness 2.0 – 2.2 mm;
«Nappa» black from calf hides, thickness 1.2 – 1.4 mm;
«Nappa» white from calf hides, thickness 1.2 – 1.4 mm;
«Floater» white from calf hides, thickness 1.3 – 1.5 mm.

Chemicals, which ensure obtaining full flexible crust, were used in the recipes:

Retanning agents based on acrylic resin — «DOWELLTAN RE 17» , «DOWELLTAN RV 13»,«DOWELLTAN А 33»,«DOWELLTAN RD 23»;

«DOWELLTAN NB» - neutralizing co-polymer;
«DOWELLTAN ST 63» - complex synthetic tanning agent, which prevents leather looseness and improves grain tightness;
«DOWELLOR FL-23»-fat liquor based on synthetic oil and soft auxiliary agents that gives softness, feeling of light foaming and pleasant touch to the leather;
«DOWELLOR FS-13» — syntheticfat liquor that provides the leather with a high degree of softness, pleasant touch, excellent light, heat resistance and resistance to yellowing;
«DOWELLTAN ST 56» — white sintan based on phenolsulfonic acid to achieve the effect of lightness.

Articles in the crusts were positively evaluated. In the future, it is planned to present ready-made leathers. The best samples will be prepared for demonstration at exhibitions in the CIS countries.