B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 33/20 (2006.01) B31B 19/62 (2006.01) B31B 19/90 (2006.01) B65D 33/22 (2006.01)
Patent
CA 2349103
A package having a re-sealable seal is formed from a flexible sheet having its opposite longitudinal edge portions sealed together to form a tubular structure with a permanent longitudinal seal. Two permanent end seals are formed transversely across the tubular structure to seal the product inside the package. A re-sealable seal is formed adjacent one of the permanent seals. The re- sealable seal is formed by a pressure-sensitive adhesive applied to a first region of the inner surface of the sheet proximate the one permanent seal and a heat seal coating applied over the pressure-sensitive adhesive so as to cover the pressure- sensitive adhesive, and a heat seal coating applied over a second region of the inner surface of the sheet. The first and second regions of the inner surface are placed in contact with each other and the heat seal coatings thereon are sealed together to initially form the re-sealable seal. When the first and second regions of the sheet are pulled apart upon opening of the package, the pressure-sensitive adhesive separates from the first region and remains with the second region. The second region is pressed against the first region to reclose the package.
Bensur Francis J.
Schuetz Jeffrey M.
Sim & Mcburney
Sonoco Development Inc.
LandOfFree
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