MULTILAYER SHRINK FILM Russian patent published in 2021 - IPC B32B7/22 

Abstract RU 2760225 C1

FIELD: packaging.

SUBSTANCE: proposed is multilayer shrink film exhibiting high strength and excellent ability for fitting to the contents. The multilayer shrink film consists of at least three layers: a surface layer (a) including a thermoplastic resin; an intermediate layer (b) including a polyamide-based resin; and a surface layer (c) including a sealing resin. The load per unit width at 10% elongation equals 0.70 N/mm or less both in the longitudinal direction (MD) and the transverse direction (TD) in a tensile test at 90°C. The puncture resistance per unit thickness equals 0.200 N/mcm or more.

EFFECT: invention provides an increase in the strength and fit of the film to the contents.

2 cl, 3 dwg, 3 tbl, 3 ex

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RU 2 760 225 C1

Authors

Nambu Shota

Kitada Ichiro

Dates

2021-11-23Published

2019-04-22Filed