Dupioni Dupioni Dupioni (also referred to as Douppioni or Dupion) is a plain weave crisp type of silk fabric, produced by using fine thread in the warp and uneven thread reeled from two or more entangled cocoons in the weft. This creates tightly-woven yardage with a highly-lustrous surface. It is similar to shantung, but slightly thicker, heavier, and with a greater slub (cross-wise irregularity) count. Dupioni is often woven with differing colors of threads scattered through the warp and weft. This technique gives the fabric an iridescent effect, similar to but not as pronounced as shot silk taffeta. Dupioni can be
Fabric structure Heavier fabric scrims, however, are too tightly woven to allow the same bonding. In this case, an adhesive is used to bond the exterior films to the base fabric. A good chemical bond is critical to both prevention of delamination and development of seam strengths. The seam is created when vinyl-coated fabrics are welded together. The adhesive enables the seam to meet shear forces and load requirements for a structure at all temperatures. The adhesive prevents wicking of moisture into the scrim’s fibers, which also prevents fungal growth or freezing that could affect the exterior coating's adhesion to the scrim.