Sealable, biaxially oriented polyester film with hydrophilic coating

摘要

The present invention relates to a polyester film which has a base layer (B), an outer layer (C), and a sealable outer layer (A), with antifog coating, where a) the sealable outer layer (A) includes less than 0.01% by weight of external particles, and b) the outer layer (C) includes from 0.12 to 0.4% by weight of external particles whose median diameter d₅₀ is from 2 to 5 mum and whose particle size distribution (SPAN98) is from 1.2 to 2. The preferred polyester of the base layer (B) is PET, and the preferred polyester of the outer layer (A) is a copolyester having ethylene terephthalate units and ethylene isophthalate units.