FIELD: chemistry.
SUBSTANCE: invention relates to surface modification of polymer materials and a method of reducing oxygen penetrability of films made from polyethylene terephthalate, used for storage of different food products. Film surface is treated with gaseous mixture containing fluorine 10–15 vol%, nitrogen 68–72 vol%, oxygen 13–22 vol%, processing time 10–15 minutes, pressure 0 kg/cm2. Invention provides effectiveness of process of reducing oxygen permeability of polyester film, while maintaining colour, transparency and strength.
EFFECT: invention also provides for development of multilayer package for products with a long and medium storage life.
1 cl, 1 dwg, 1 tbl, 2 ex
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