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Properties of PVDC latex
Barrier properties

Coating on single-component film:
Oxygen barrier and moisture barrier performance is greatly enhanced by coating with PVDC latex.

Type of film Thickness
(µm)
Oxygen permeability *2)
(mL/m2/0.1 MPa/day)
Water vapor
permeability *3)
(g/m2/day)
K-OPP *1) 23 4 4
OPP 20 1300 7-8
Nylon 15 80 300
PET 12 80 45
LDPE 40 2000 9-12
HDPE 40 1500 3-6
CPP 40 2000 6-12
*1) 20 µ OPP film with 3 µ coating of Asahi Kasei PVDC latex L803C
*2) Results with JIS K7126B at 20°C, ≈70%RH
*3) Results with JIS K7129 at 40°C, 90%RH
Note : All values are typical laboratory averages obtained using the specified test methods, and not guaranteed.
  Coating with multi-component film:
Oxygen barrier and moisture barrier performance is greatly enhanced by including a PVDC latex coating.

Gas barrier performance of multi-component films

Film sample Oxygen permeability *1)
(ml/m2/0.1 MPa/day)
Water vapor permeability *2)
(g/m2/day)
K-OPP/PE 10.0 3.1
OPP/CPP >100 5.7
Ny/PE >100 9.4
*1) Results with JIS K7126B at 20°C, ≈70%RH
*2) Results with JIS K7129 at 40°C, 90%RH
Note : All values are typical laboratory averages obtained using the specified test methods, and not guaranteed.
Number of days until 2% weight change of packaged food product

Ham
Film sample Days
K-OPP/PE 20
OPP/CPP 14
Ny/PE 9
Peanuts
Film sample Days
K-OPP/PE 8
OPP/CPP 4
Ny/PE 3
Yuepin (Chinese confection - Yuebing)
Film sample Days
K-OPP/PE 35
OPP/CPP 22
Ny/PE 15
Soft cake
Film sample Days
K-OPP/PE 22
OPP/CPP 10
Ny/PE 10
Results with JIS K7129 at 40°C, 90%RH
Film samples
K-OPP/PE: 20 µm PVDC-coated OPP/15 µm PE/25 µm LLDPE
OPP/CPP: 20 µm OPP/dry lamination adhesive/20 µm CPP
Ny/PE: 15 µm nylon/dry lamination adhesive/50 µm LLDPE
Note : All values are typical laboratory averages obtained using the specified test methods, and not guaranteed.
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