Dobby fabric refers to any type of cloth that uses a dobby weave. Dobby weaving machines raise or lower the warp threads, i.e. those that run the length of the fabric, during the weaving process to create patterns such as stripes, checks and designs.
Dobby fabrics can be made from many different fibres such as nylon, cotton, rayon and more.
So dobby nylon is simply a “textured” weave of nylon.