RESEALABLE LAMINATE FOR HEAT SEALED PACKAGING Russian patent published in 2017 - IPC B65D77/20 

FIELD: packaging industry.

SUBSTANCE: resealable packaging article includes a container and cover for tight connection to each other. Container contains a polymer substrate, forming a sealing surface, and a first sealing layer, arranged on surface of sealing of polymer substrate. Cover has an outer surface and inner surface. Inner surface faces sealing surface of polymer substrate during sealed connection of container and cover with each other. Cover includes an outer substrate, forming an outer surface of cover, inner substrate, adhesive layer arranged between outer and inner substrates, a second sealing layer located on inner substrate. Second sealing layer forms an inner surface of cover. Release layer arranged between inner substrate and adhesive layer and immediately adjacent to adhesive layer. Layer of impermeable material arranged between inner and outer substrate or at second sealing layer of inner substrate. Layer impermeable material has oxygen permeability of less than 50 cm³/(m²⋅day). In second sealing layer there is a cut, incision or slot.

EFFECT: invention has simple design and provides reliable connection.

23 cl, 11 dwg, 5 tbl