Introduction:
Appearance: light yellow viscous liquid
Main use: suitable for retanning and filling of all kinds of leather, especially recommended for chrome-free tanning system.
Usage and dosage:
For chrome-free tanning system: used in the process after white wet leather rewetting, the recommended dosage is 3.0-5.0%, which can be adjusted according to the leather making style.
For chrome tanning system: used before and after chrome retanning, the recommended dosage is 2.0-4.0%.
After fatliquoring: 2.0-4.0%
Performance characteristics:
1. Small and medium molecular weight, good permeability, can quickly penetrate into the leather core, giving the leather a uniform and consistent sense of firmness and fullness, solving the problem of loose surface.
2. It has good acid resistance and does not produce precipitation in a wide range of pH values. It is suitable for all processes of retanning and dyeing.
3. It is used in chrome-free tanning system to adjust the charge properties of the leather, promote the absorption and fixation of the leather to the retanning and dyeing materials, so as to make the finished leather full and firm.
