Abstract
Domestic (Bombyx mori) and wild (Antheraea pemyi) silk fibers were treated with organic solvents at various temperatures, and studied by means of X-ray diffraction analysis. The wide-angle X-ray diffraction analysis suggested that the solvent induced crystallization occurred only in the domestic silk fiber, whereas the small-angle X-ray scattering analysis suggested that the fraction of microvoids was decreased by ethanol or acetic acid treatment in the wild silk fiber.
