Textile and Fiber Materials

Linen, made from flax, is considered one of the oldest textile fibers in human history, with evidence of its use dating back thousands of years.

Silk is a natural protein fiber produced by the larvae of certain insects, most notably the silkworm (Bombyx mori), to form their cocoons.

Wool is a natural protein fiber obtained from the fleece of sheep and other animals like goats or alpacas. It is distinct from plant-based fibers.

Cotton fibers grow from the seeds of the cotton plant, which are contained within the protective seed pods known as bolls. Once the bolls open, the fibers are harvested.

Natural fibers derived from animals, such as wool or silk, are composed of proteins. Cellulosic fibers are derived from plants.

Plant fibers are composed primarily of cellulose, a complex carbohydrate. Protein fibers are animal-based.

Coir is a natural fiber extracted from the husk of coconuts, which classifies it as a fruit fiber.

Animal fibers are made of animal hair or secretions, which are fundamentally composed of protein chains like keratin or fibroin.

Plant fibers are derived from plant structures, which are structurally supported by cellulose.

Secondary transfer occurs when fibers are picked up from a source (like a couch) and then transferred to a second person, rather than coming directly from the original source to the victim.

Yarns are created by twisting or spinning individual fibers together to form a continuous strand suitable for weaving or knitting.

Abaca is a species of banana plant native to the Philippines, and its fibers are commonly known as Manila hemp.

Linen is a textile made from the fibers of the flax plant.

Direct transfer occurs when fibers are transferred directly from one source (the shirt) to another surface (the other person) through contact.

Asbestos is a naturally occurring mineral fiber known for its needle-like or spear-shaped structure and is categorized into six mineral types.