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Properties of PVDC latex
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Barrier properties
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Coating on
single-component film:
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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 |
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*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. |
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Coating with
multi-component film: |
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Oxygen barrier and moisture
barrier performance is greatly enhanced by including a PVDC latex coating. |
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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 |
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*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. |
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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 |
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Peanuts
| Film sample |
Days |
| K-OPP/PE |
8 |
| OPP/CPP |
4 |
| Ny/PE |
3 |
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Yuepin (Chinese confection - Yuebing)
| Film sample |
Days |
| K-OPP/PE |
35 |
| OPP/CPP |
22 |
| Ny/PE |
15 |
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Soft cake
| Film sample |
Days |
| K-OPP/PE |
22 |
| OPP/CPP |
10 |
| Ny/PE |
10 |
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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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