Intense and vibrant color construction and functionalization for protein macromolecule/polyamide two-component fabric by sustainable microbial nano prodigiosins based on adjustable pigment allocation.

Silk/polyamide fabric inherits the advantages of natural and synthetic fibers, making them remarkable in textile and garment field. However, the use of synthetic chemicals for color construction and functionalization of silk/polyamide fabrics is problematic because of their non-renewable resources and harmful effects on the environment. Furthermore, achieving even color construction of silk and polyamide fibers in one bath is challenging due to their significant differences in chemical structure and surface properties.