Nano-phase material is a general term to describe any material made up of phases that have dimensions of the order of nanometer. An ultrafine single solid phase were at least one dimension is in the nanometre range, usually dimensions are between 1–20 nm (nanometres range). See also Nanoscale, Nanotechnology and Nanoscience in the Eco fashion dictionary a-z.
Recommended post on fashion and Nanotechnology:
POST I: INTRODUCTION TO NANOTECHNOLOGY IN FASHION AND TEXTILE INDUSTRY
POST II: NANOTECHNOLOGY IN THE TEXTILE AND FASHION BUSINESS. PART II
POST III: HOW TO MANUFACTURE NANOTECHNOLOGY TEXTILES? PART III
ECO-FASHION-DENIM AND DIAGRAMS DICTIONARIES OVERVIEW