I have recently encountered Hand Made Postcards using silk habotai by Debbie Babin.
This article caught my eye as the technique is slightly different. The card is quilted first then dyed.
I went on to explore the site. Debbie Babin is a Mixed media textile artist. Do venture further than her tutorials I am sure you will enjoy the eyecandy in her galleries.
Many thanks for this!! The woman is very talented, and the site is gorgeous! The gallery is spell binding with her work. I need to take a workshop here, I think.