The Features of Bio-based Fibers?

Bio-based fiber refers to fibers made from natural renewable resources, through the preparation of bio-based polymers or directly extracted from biological raw materials. They mainly come from natural renewable resources, including plants, animals and microorganisms. For example, cellulose and lignin in plants, protein in animals, and polyester produced by microbial fermentation can all be used as raw materials for bio-based fibers.

Performance characteristics

Renewability and degradability: The biggest feature of bio-based fibers is their renewability and degradability. Since the raw materials come from natural renewable resources, after use, they can be decomposed by microorganisms in the natural environment and eventually converted into carbon dioxide and water, which has less pollution to the environment and meets the requirements of sustainable development.

Good biocompatibility:

Many bio-based fibers have good biocompatibility. For example, protein fibers have a soft and comfortable feel when in contact with human skin and do not cause adverse reactions such as allergies. They are suitable for making products such as clothing and home textiles.

Natural bio-based fibers

Plant fiber:

mainly composed of cellulose, common ones are cotton fiber and hemp fiber. Cotton fiber is made of cotton, has strong hygroscopicity, good dyeing performance, is comfortable and soft, and is often used in clothing, home textiles and other fields. Hemp fiber includes flax, ramie, etc., has good hygroscopicity, strong air permeability, and is crisp and cool, and is often used to make summer clothing and home textiles.

Animal fiber:

mainly composed of protein, such as wool and silk. Wool fiber has good warmth retention, good elasticity, and strong moisture absorption, and is often used to make sweaters, woolen cloth, etc. Silk fiber has excellent luster, soft feel, and good moisture absorption, and is often used to make silk clothing and high-end home textile products.

Chemically synthesized bio-based fibers

Polylactic acid (PLA) fiber: Made from crops such as corn and sugar cane, it is fermented and polymerized into polylactic acid polymers, which are then spun. It has good strength and elasticity, UV resistance, low hygroscopicity, and is not easy to fade. It can be used in clothing, home textiles, industrial textiles and other fields.

Polyhydroxyalkanoate (PHA) fiber: Made of polyhydroxyalkanoates produced by microbial fermentation, it has biodegradability, biocompatibility and good mechanical properties. It can be used in the biomedical field, such as tissue engineering scaffolds, sutures, etc., and can also be used in packaging materials and textile and clothing fields.

Bamboo fiber: It is divided into bamboo fiber and bamboo pulp fiber. Bamboo fiber is a natural fiber extracted directly from bamboo, while bamboo pulp fiber is made by chemically treating bamboo into bamboo pulp, and then spinning it into fiber. Bamboo fiber has good moisture absorption, air permeability and antibacterial properties, is soft and comfortable, and can be used in textile clothing and home textile products.