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It has excellent gas barrier properties and minimizes food deterioration due to moisture absorption or oxygen. Thanks to these features, the shelf life of food is extended and storage stability is enhanced.
Because the film is non-conductive, it can be used for metal detectors, microwave ovens, RFIDs, retort pouches, etc. Unlike the conventional opaque Al-metalized packaging materials, our transparent barrier films enable the visual checking of the food content inside the package.
* These are some of the examples where Seoil’s transparent barrier film is applied.
Moisture Barrier
High Permeability
Printability
Stickiness
Property | ALO SKY -F (Room Temperature) Spec | ALO SKY -R (Retort) Spec |
---|---|---|
WVTR (g/m²day) | 0.3 ~ 0.4 | 0.1 ~ 0.4 |
OTR (cc/m²day) | 0.08 | 0.2 ~ 0.4 |
VLT (%) | 88 or more | 88 or more |
Haze | 2.5 or less | 2.5 or less |
Wettability (mN/m) | 50 or more | 50 or more |
※ As the base film is selected according to the intended application, the physical properties may vary.
Property | Unit | MPET PX52 | MPET PX53 | MPET XP35 | MPET PX37 | MPET PX135 | Test Method | |
---|---|---|---|---|---|---|---|---|
Base Film Thickness | ㎛ | 12 | 12 | 12 | 12 | 12 | Micrometer Method | |
Tensile Strengt | MD | kgf/㎟ | 27 | 26 | 27 | 27 | 28 | ASTM D 882A |
TD | 23 | 22 | 23 | 24 | 24 | |||
Elongation at Break | MD | % | 121 | 123 | 127 | 131 | 121 | |
TD | 139 | 132 | 141 | 136 | 141 | |||
Young's Modulus | MD | kgf/㎟ | 476 | 465 | 457 | 442 | 469 | |
TD | 487 | 480 | 486 | 496 | 485 | |||
Heat Shrinkage | MD | % | 1.0 | 1.0 | 1.0 | 1.2 | 1.2 | Seoil Method (150℃/30min.) |
TD | 0 | 0 | 0 | 0 | 0 | |||
Al Thickness | Å | 420 | 420 | 420 | 520 | 420 | Seoil Method | |
O.D (Optical Density) | - | 2.1 | 2.1 | 2.1 | 2.6 | 2.1 | Seoil Method | |
OTR (Oxygen Transmission Rate) | cc/㎡/day | 1.0 | 1.0 | 1.1 | 0.7 | 1.5 | ASTM F 3985 (25℃, 0%R.H., 1atm) | |
WVTR (Water Vapor Transmission Rate) | g/㎡/day | 1.0 | 1.0 | 2.0 | 0.7 | 0.7 | ASTM F 372 (37.8℃, 90%R.H., 1atm) | |
Surface Tension (Metallized Side) | dyne/㎝ | 58 | 58 | 54 | 56 | 58 | ASTM D 2578 | |
Gloss (Metallized Side) | 20˚ | % | - | - | 1250↑ | 1250↑ | 1250↑ | ASTM D 523 |
60˚ | 700↑ | 650↑ | 750↑ | 750↑ | 700↑ |