Dupions

Dupions are a type of silkworm cocoon that differs from standard cocoons in a specific way. Normally, a silkworm spins a single cocoon from a single filament of silk. A dupion cocoon, however, is formed when two silkworms spin their cocoons very close together, sometimes intertwining their silk. This results in a single, often thicker, cocoon containing two filaments.

The process of unwinding silk from dupion cocoons is more challenging than from single cocoons. Because the silk filaments are intertwined or spun together, they cannot be easily separated and reeled off as one continuous thread. This often leads to a coarser, less uniform thread.

The resulting silk fabric made from dupions is characterized by its distinctive texture and appearance. It typically has a slightly uneven surface with small bumps or slubs, which are remnants of the intertwined filaments. This irregularity gives dupion silk a unique, textured look that can be desirable for certain design applications. The fabric is often described as having a "slubby" or "textured" feel, and it tends to be more matte than lustrous silk.

Dupion silk is used in various textile applications, including apparel, home furnishings, and decorative fabrics. Its unique texture can add visual interest and a rustic charm to finished products. While it may not possess the smooth, high sheen of traditional silk, its distinctive character makes it a popular choice for designers seeking a specific aesthetic.