FIELD: process engineering.
SUBSTANCE: invention relates to making heat-sealing plastic sheet and film structures and may be used for packing oxygen-sensitive products. Proposed structure comprises, at least, two active oxygen-absorbing layers arranged as follows: fast-absorption high-activity layer including matrix polymer and oxygen absorber and long-time action layer including passive high-barrier matrix polymer and oxygen absorber. Proposed method consists in consecutive application of said layers on permanent polymer substrate from solution for water-based coatings.
EFFECT: better working properties.
23 cl, 7 dwg, 1 ex
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