Wool is a natural fiber produced by sheep (and a few other animals) that is harvested as a crop by humans. The primary characteristic of wool is that it is an excellent insulator. A woolen sweater will keep you cozy and warm by trapping air between its fibers and helps to maintain steady body temperature.
The wool pretreatment process is the process of preparing and washing a batch of raw sheep’s wool to remove impurities such as grease, dirt and suint.
Cationic softener is the most commonly used softener for finishing wool fabrics. Cationic softener can easily adsorb on the surface of the fiber with strong combining capacity and strong high temperature, washing resistance.