Bio-based chemical fibers are fibers made from biomass or polymers containing biomass-derived monomers. The products are ecologically friendly, human-friendly, antibacterial and comfortable, and waste biodegradable, and have been widely used. Used in underwear, shirts, hosiery, home textiles and other products.
Bio-based fiber or bio-based fiber refers to fiber made from renewable organisms or biological extracts. It is distinguished from fibers produced from non-renewable petrochemical resources such as coal and petroleum.
There are many varieties of bio-based fibers. For the convenience of research and use, they can be classified from different angles:
1) Based on biological properties, it can be divided into animal fiber, plant fiber and microbial fiber;
2) From the industrial classification, it can be divided into fiber produced by agricultural and sideline products and fiber produced by marine byproducts;
3) Based on the production process, bio-based fibers can be divided into three major categories:
▲Bio-based virgin fibers are animal and plant fibers that are processed by physical methods and used directly;
▲Bio-based regenerated fiber, that is, using natural animals and plants as raw materials, making spinning solution through physical or chemical methods, and then preparing fibers through appropriate spinning processes;
▲Bio-based synthetic fibers use biomass as raw material, chemically produce high-purity monomers, and then obtain high-molecular-weight polymers through polymerization reactions, which are then processed into fibers through appropriate spinning processes. Bio-based regenerated fibers and bio-based synthetic fibers are collectively referred to as bio-based chemical fibers. So what is the difference between these two types of fibers? The bio-based regenerated fiber does not change the original chemical structure of biomass macromolecules. The spinning process is a reconstruction of its physical form, which only changes the aggregated structure. The chemical and physical properties of bio-based synthetic fibers depend on the monomers used, regardless of the source of the monomers. In other words, synthetic fibers can use bio-based monomers or petroleum-based monomers, and fibers made from the same monomers have the same properties. Bio-based synthetic fibers emphasize that their monomers are derived from living organisms.
