The Difference Between Tubular Bags and Side Seal Bags.
HEVEL TUBULAR BAGS
Tubular bags are co-extruded in one sole production process in 3 or 5 layers (PA/PA/PE) at very high temperatures.
HEVEL only produces 3-layer tubular vacuum bags to give less leakage. Length wise extrusion stripes are evident when bags are viewed against the light.
HEVEL only produces 3-layer tubular vacuum bags to give less leakage. Length wise extrusion stripes are evident when bags are viewed against the light.
DISADVANTAGES
- Higher Price.
ADVANTAGES
- No de-lamination as the layers are welded at high temperatures.
- Only one bottom seal so less leakages along the shorter seal line. Sealing is done at high pressure and low temperature to avoid burning of the barrier nylon seal line.
- Less change of folds in customer's seals.
- Bags are flexible with more stretchable, so less leakages caused by sharp products.
- The bags are crystal clear after vacuuming.
ADDITIONAL ADVANTAGES WITH HEVEL TUBULAR BAGS
- An aseptic (sterile) interior by means of an Absolute filer, monitored and certified by Eurofins (Europe Government Test Lab).
- Bags are produced under ISO 22000 controlled conditions, certified by Lloyds Register Quality Assurance.
- The raw materials used are of good, consistent quality from reputable international supplier.
- Co-extruding and bag-making using modern computerized high-tech production lines.
- 40 years experience in production of vacuum bags and thermo-form films.
2-SIDE, 3-SIDE SEAL BAGS
A spread of nylon sheet is glued to a Polyethylene film, called lamination. The laminated films are 2 or 3 side sealed to size. When viewed against the light, lamination print can be easily seen.
DISADVANTAGES
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Pic (Above) Layers of Bag Delaminate
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ADVANTAGES
- It is cheaper.
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COMPANY.Norsker Trading House Pte Ltd has been regional sole representative of Hevel Vacuum BV for the past 33 years covering territories of Singapore, Malaysia and Indonesia.
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