Textile Glossary

Biomaterials

Definition

Biomaterials are materials derived from renewable, biological sources such as plant-based fibers, proteins, or biopolymers, and may be fully or partially biodegradable. They include both natural raw materials (e.g., cellulose, starch, proteins) and biotechnologically produced substances such as polylactic acid (PLA) or polyhydroxyalkanoates (PHA). Classification as a biomaterial refers primarily to the biological origin of the source material, not necessarily to its end-of-life biodegradability.

Use in the textile industry

In the textile industry, biomaterials are used to substitute synthetic, petroleum-based fibers and auxiliaries — for example, through bio-based polyester fibers made from PLA or plant-derived elastanes. Typical application areas include technical textiles, nonwovens for medical or agricultural purposes, and apparel textiles with a reduced carbon footprint. Relevant properties include biocompatibility, degradability under defined conditions, and altered mechanical and thermal characteristics compared to conventional man-made fibers.

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Frequently asked question

A biomaterial is defined by its biological origin and is not necessarily biodegradable — for example, bio-based polyethylene is chemically identical to petroleum-based PE and therefore persistent. Conversely, not all biodegradable materials are bio-based, as certain degradable plastics such as PBAT can be produced from fossil raw materials. Biodegradability and biogenic origin are therefore independent properties that may overlap but are not equivalent.

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