What are foams? They are magic floating above the rainbows; They are the charming glow on the hair of our loved one; They are the trails left behind when a dolphin dives into the deep blue ocean... To tanners, foams are caused by mechanical treatments (inside the drums or by paddles), that encapsulated air inside the surfactant components of the working fluid and formed a mixture of gas and liquid. Foams are inevitable during the wet end process. That is because, in the wet end process, especially the retanning stage，water, surfactants and mechanical treatments are the three main factor of the cause of foams, yet these three factors exist nearly throughout the process. Amongst the three factors, surfactant is one of the essential materials used during the tanning process. The uniform and stable wetting of crust and the penetration of chemicals into the crust all depend on it. However, a substantial amount of surfactant could cause the problems of foams. Too much foams could bring about problems for the proceeding of the tanning process. For instance, it might affect the even penetration, absorption, fixation of chemicals.
/great handle /outstanding aging-fastness /good fixing ability /brilliant dyeing effect /excellent maintenance of good handle /effective defoaming performance etc…… Decision will continue with the research and development of sustainable leather chemical materials. We will keep exploring from diversified angles, the physicochemical properties of different materials when used on leather and the sensory effect of the leather after using certain products. We have faith that ‘concentration and devotion’ will generate productivity, we are also looking forward to your needs and feedback. With further tests, by adding DESOPON SK70 during tanning process, the maintenance of the softness of crust has also improved markedly: