Looking for the Dye Sublimation Textiles supplier.

Hello everyone!
1. We have Large (62") Format Dye Sub Equipment and currently looking into widening pool of our textile suppliers. Currently we are using The Value Fabrics (TVF) as a primary source. We would like to know whom else you are using as a textile supplier, since the quality of blank fabric may have significant impact on appearance of the final product (final print).
We are into custom jerseys, polos , flags and all other things in sublimation.
2. The materials we are using are (of course) 100% polyester. Do you know any other materials that have a "special coat" to enhance the saturation/vibrancy of the print transfer.

Please advise, your input is greatly appreciated.