Wool paper is a specialty industrial paper, primarily produced by mixing plant fibers and animal fibers (wool fibers) on a paper machine. The plant fibers are any one or a mixture of hemp pulp, cotton pulp, wood pulp, or waste paper pulp; the animal fibers are wool fibers, which can be refined wool, raw wool, or wool textile waste. The mixing ratio of plant and animal fibers is typically 55-90% plant fibers and 45-10% animal fibers.
Wool paper is mainly used as a filling material in paper pulp rolls (wool paper rolls). Wool paper rolls, as a key component of calendering and pressing machinery-soft pressure rolls-are widely used in the calendering, embossing, or texturing of various types of paper, as well as in the supercalendering and finishing of products such as magnetic tape and translucent cellophane. They also have applications in the textile calendering and embossing industries. In recent years, their application scope has expanded to plastic embossing, plastic film calendering, laser anti-counterfeiting paper calendering, and cold-pressed thin steel sheet calendering.
