Method for manufacturing matte polyester film

A method for manufacturing a matte polyester film, comprising:

• providing a recycled polyester material;
• physically regenerating a first part of the recycled polyester material to form physically regenerated polyester chips;
• wherein the physically regenerated polyester chips have a first intrinsic viscosity;
• chemically regenerating a second part of the recycled polyester material to form chemically regenerated polyester chips, including depolymerization of polyester molecules of the recycled polyester material to form a material mixture and repolymerization of the material mixture to form the chemically regenerated polyester chips, wherein the chemically regenerated polyester chips have a second intrinsic viscosity less than the first intrinsic viscosity;
• mixing matte regenerated polyester chips, the physically regenerated polyester chips, and the chemically regenerated polyester chips according to a predetermined intrinsic viscosity less than the first intrinsic viscosity so as to form a polyester masterbatch material;
• and
• melting and then extruding the polyester masterbatch material to obtain the matte polyester film having the predetermined intrinsic viscosity.