•  1.OPVA (Polyvinyl-alcohol) substrate
•  2.Aluminum foil substitution
•  3.Gelbo-flex durability

“TECHBARRIER™-S” is SiOx vacuum coated OPVA (Polyvinyl-alcohol) film which has high level of oxygen and water vapor barrier.
Little deterioration of gas barrier property in spite of rough physical stress.
Historical type of TECHBARRIER™ which has aimed at alternating of 7 or 9 micron Aluminum foil.

•  1.General property (detail >>)

  Excellent oxygen 0.1cc/㎡/day/atm and water vapor 0.1g/㎡/day barrierability.

•  2.Gelbo-flex durability

•  3.Recommendable structures

  • 3-1

    When packing dry materials(foods).

    • 1 )SiOx layer must face outer.
    • 2 )Laminating a plastic film on SiOx layer in order to protect. The appropriate films are OPP, OPET. The higher humid barrier material, the better.
    • 3 )Don’t laminate OPA film on SiOx layer because the barrier property would be deteriorated when it exposed humid atmosphere.
    • 4 )Recommendable structures are as follows.
      OPP // SiOx -TECHBARRIER™-S // Sealant // (inside, dry material)
      OPET // SiOx -TECHBARRIER™-S // Sealant // (inside, dry material)
  • 3-2

    When packing wet materials (foods).

    • 1 )SiOx layer must face inner.
    • 2 )OPVA, the base film of TECHBARRIER™-S, easily absorbs humidity. Laminate a plastic film on non-SiOx layer.
    • 3 )Recommendable structure is as follows.
      OPET // TECHBARRIER™-S(SiOx) // Sealant // (inside, wet material)

•  4.Notes

  Middle layer usage among 3-ply structures is required. (Please refer above “3.Recommendable structures”.)
  Avoid long-term storage under high temperature / high humidity.