TextileGlossary.com

Some more terms:
Nappa
A soft surface on fabric or...

Underpants
Short or long pants worn under an outer garment;...

Bleached
A Chemical treatment to remove impurities and whiten the fabric. It can be done either in preparation for dyeing and finishing or to obtain clean whites in finished...

Sheers
(Triple Sheers) - Heavier and flatter than sheers and almost opaque. Many are made from 'Bemberg', which wears, drapes, and washes...

Fagoting
An embroidery produced by pulling out horizontal threads from a fabric and tying the remaining cross threads into groups of an hourglass....

Companies for Velvety:
If you manufacture, distribute or otherwise deal in Velvety.