It is suitable for pre-twisting and retanning of various leathers. It can produce excellent white wet leather with excellent texture, and the leather is particularly soft, full, smooth, and has good dyeing performance. It has good enamel production and obtains a shrinkage temperature of at least 80 °C. The amount of formaldehyde is extremely low, which is in line with the requirements of environmental laws and regulations of all countries in the world.
Appearance Colorless to yellowish transparent liquid
Effective (%) 30±2
pH (10% aqueous solution) 5.0-7.0
Usually after acid pick-up, when pH is between 25 and 30, the addition of WE can achieve uniform penetration, and the leather forms a stable cross-linking effect and a shrinkage temperature of about 80 ° C. It needs alkalization to evenly balance the cut, and the pH value. At least 5-6 or more can be fully controlled. In the absence of tanning, it is recommended to add sodium borate to ensure that the unreacted tanning agent is sufficiently fixed in the leather. The sheep skin that can be pre-hydrophobic degreased can also be used as a pre-tanning agent for oil leather. Recommended dosage: 3-6% (by shaving)
Packaging and transportation
Packed in 125Kg plastic drums, non-dangerous goods, can be shipped as normal goods. The storage period is one year.