PE Coatings

PE

PE coating

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Product description

Polyethylene (PE) coated paperboard is suitable for packaging applications where moisture barrier properties are important. The PE coating also provides a simple yet efficient way of sealing the package. PE coatings can be one or two-sided and three different types of PE coating are available: LDPE, LDPE Super Seal and HDPE.

The LDPE is the most frequently used product for frozen food. It provides a good combination of barrier and sealability characteristics. LDPE Super Seal has better heat sealing properties than LDPE. The barrier properties are marginally lower. HDPE has a higher temperature limit, can withstand abrasion better and has better barrier characteristics than LDPE. HDPE coatings are normally done on the reverse side. All PE coatings are available in white, brown or black pigmented versions.

Additional properties

The PE coating gives:

  • Good sealability
  • As one-side coated, good moisture barrier from the inside
  • As two-sides coated, good moisture barrier from both sides

The reverse side is a NSO (non-set-off) surface for reduced ink set-off tendency and reduced blocking and friction.



Deep freezing Vapor             Heat sealing

Typical end use areas

One-side LDPE/HDPE
Vegetables (packed pre-frozen)
Fish and other seafoods (packed pre-frozen)
Meat products (packed pre-frozen)
Cups
Ice cream
Confectionery
Chocolate  

Two-sides LDPE
Fish and other seafoods (packed wet)
Vegetables (packed wet)
Cups
Ice cream

Baseboard/Grammage guide

Information on baseboard properties is found under Paperboard products in the Product Catalogue.

PE coatings are available in the following combinations of baseboards and grammages (g/m)

 Invercote

Printing side 15-25 g/m2 PE, Glossy surface, corona treatment
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Grammage range according to the specific baseboard
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Reverse side 15-25 g/m2 PE, Non-set-off surface, no corona treatment 1)

 Invercote

Printing side
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Grammage range according to the specific baseboard
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Reverse side 15-25 g/m2 PE, Non-set-off surface, corona treatment

 Incada

Printing side 15-25 g/m2 PE, Glossy surface, corona treatment
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Grammage range according to the specific baseboard
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Reverse side 15-25 g/m2 PE, Non-set-off surface, no corona treatment 1)

 Incada

Printing side
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Grammage range according to the specific baseboard
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Reverse side 15-25 g/m2 PE, Non-set-off surface, corona treatment

 

1) Corona treated if 1-side (reverse side) coated only.
Other PE grammages and pigments available on request.

 

PropertyPrinting sideReverse sideToleranceTest method
Grammage (g/m2) 15-25 15-25 ±5 % ISO 536
Added thickness (µm) 16-27 16-27 - Calculated value
Surface roughness (µm) ≤ 2.7 (typical) ≥ 5.0 (typical) PS≤3.5 ISO 8791
Surface tension (dynes/cm) ≥421) ≥ 421,2) - ISO 8296
Adhesion (scale) 5 (typical) 6 (typical) ≥ 4 Internal3)
Pin holes (number/m2) - 0 (typical)4) - PTN 8-70 (modified)
1) When produced. After delivery the level can be affected by conditions beyond our control.
2) Valid only for 1-side coating.
3) Scale 1 - 6. (6 = full fibre tear/excellent on a fully clay-coated surface).*
4) Valid for PE grammages = 20 g/m2.
 

Paperboard for food packaging

Paperboard is a promising material for airline food packaging – it has low weight, can be barrier coated, and can be finished to the required level of elegance and quality feel.

 

Contact

Iggesund Paperboard
825 80 Iggesund
Sweden

+46 650 - 280 00
info@iggesund.com

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