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FILM DESCRIPTION |
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Two sides heat sealable, one side treated coextruded biaxially
oriented polypropylene opaque white film, suitable for: |
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Rotogravure and flexographc printing.
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Horizontal and vertical packaging machines (HFFS – VFFS).
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General overwrapping purposes.
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CHARACTERISTICS |
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Milky white appearance.
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Good protection against light.
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Two sides heat sealable with excellent hot tack.
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Excellent ink adhesion on treated side.
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Good barrier to moisture, odours and gases.
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APPLICATIONS |
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Food packaging (candies, snacks, chocolate and biscuit).
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Non – food
packaging (soaps, and cosmetics).
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Properties |
unit |
Test method |
Tolerance |
Typical value |
|
Thickness |
micron |
-- |
±3% |
|
25 |
30 |
35 |
40 |
|
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Yield |
m²/ kgm |
-- |
±3% |
|
41.45 |
34.54 |
29.61 |
25.91 |
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| Unit weight |
gm/m² |
-- |
±3% |
|
24.12 |
28.95 |
33.77 |
38.6 |
|
|
|
N/mm² |
ASTM D 882 |
|
|
|
100 |
100 |
100 |
100 |
|
|
|
240 |
240 |
240 |
240 |
|
|
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Breaking
elongation |
MD |
|
TD |
|
% |
ASTM D 882 |
|
|
|
160 |
160 |
160 |
160 |
|
|
|
50 |
50 |
50 |
50 |
|
|
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Modulus of
elasticity |
MD |
|
TD |
|
N/mm² |
ASTM D 882 |
|
|
|
1400 |
1400 |
1400 |
1400 |
|
|
|
2300 |
2300 |
2300 |
2300 |
|
|
|
|
% |
In air, in oven
For 5 min.
At 130 ºC |
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Optical
density |
% |
Tobias Denstiometer |
Min. |
|
0.5 |
0.55 |
0.58 |
0.62 |
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| Gloss |
G.U. |
ASTM D 2457 |
Min. |
|
40 |
40 |
40 |
40 |
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| Coefficient of
friction |
-- |
ASTM D 1894 |
± 0.05 |
|
0.3 |
0.3 |
0.3 |
0.3 |
|
| Water vapour
permeability |
g/m².24 hrs
at 38 ºC
90% RH |
ASTM E
96-66
BS 3177 |
Max. |
|
6.5 |
5.5 |
4.5 |
4 |
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| Oxygen
permeability |
cc/m². 24hrs
Bar, at 23ºC,
0% RH |
ASTM D
1434
Bs 2782 –
514 A |
Max. |
|
1800 |
1500 |
1300 |
1150 |
|
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Heat seal range |
ºC |
OPMA Method |
-- |
|
120-145 |
120- 145 |
120-145 |
120-145 |
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| Denisty |
Kgm/m³ |
ASTM D 1505 |
± 0.05 |
|
0.965 |
0.965 |
0.965 |
0.965 |
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