POLYESTER FILM WITH ROUGHENED SURFACE

摘要

PURPOSE:To obtain a polyester film which does not cause filter clogging in the melt line of the polymer, does not break when oriented and excels in surface roughness. CONSTITUTION:An at least uniaxially oriented polyester film with a roughened surface comprising 80-97wt.% polyester mainly consisting of ethylene terephthalate and 3-20 pts.wt. polyhexamethyleneadipamide and 0.1-2.0 pts.wt. inorganic particles of a mean particle size of 10mum or below.