Choosing the right material laminate determines the aroma protection, shelf life, brand perception and recyclability of a stand-up pouch. Below is a technical overview of the film laminates processed at Elke Plastic, with their barrier properties and typical applications.
PET12 / AL7 / LDPE110 — aluminum high barrier
Three-layer laminate of 12 microns polyethylene terephthalate (print side), 7 microns pure aluminum as a barrier layer and 110 microns low-density polyethylene (seal side). Oxygen transmission rate (OTR) < 0.1 cm³/m²·24h, water vapour transmission rate (WVTR) < 0.1 g/m²·24h. Aroma and light barrier close to 100%. Use: coffee, tea, pet food, pharmaceutical products, oxidation-sensitive foods.
Kraft paper 50g / AL7 / CPP60 — paper-aluminum hybrid
Outer side of 50 g/m² natural or coloured kraft paper, behind it a 7 microns aluminum lamination as a barrier layer, inside 60 microns cast polypropylene for the seal seam. Visually crafted and natural, technically almost identical barrier values to the pure PET/AL/LDPE laminate. Popular for premium coffee, tea, artisan products and sustainability-oriented brand positioning.
PET12 / LDPE110 — transparent standard
Two-layer laminate without aluminum. OTR approx. 50–80 cm³/m²·24h, WVTR approx. 2–4 g/m²·24h. Reduced barrier, but full product visibility. Suitable for confectionery, nuts, dry products with a short best-before date or fresh products with a high turnover rate.
Mono-PE (LDPE / EVOH / LDPE) — recyclable
Monomaterial laminate on a polyethylene basis with a thin EVOH barrier layer (< 5% share). Recyclable in the yellow bag as mono-PE, correctly classifiable in sorting plants by near-infrared detection (NIR). OTR is 1–3 cm³/m²·24h and thus significantly better than pure PE films. Meets the requirements of the EU Packaging Regulation (PPWR) from 2030.
Mono-PP — high-temperature version
Pure polypropylene film, microwave-suitable up to 100 °C. Sterilisable and suitable for hot-fill products. The recycling stream for PP packaging is well established in Germany. Typical applications: convenience food, sauces, microwave-ready meals.
Kraft paper / PLA laminate — biodegradable
Compostable laminate of a kraft paper outer side and a PLA inner film (polylactic acid from corn starch). Certified to EN 13432 for industrial composting. Suitable only for dry foods (tea, coffee, muesli, snacks) — not for fatty or moisture-containing products due to the reduced barrier.
All materials are certified to EU Regulation 10/2011 for food contact. We supply the corresponding declaration of conformity (PIM) with every order on request. For material selection the rule is: the higher the barrier, the longer the shelf life — the more recyclability, the more important a realistic logistics and best-before plan.
Material comparison at a glance
| Laminate | Oxygen barrier (OTR) | Look | Typical application |
|---|
| PET12 / AL7 / LDPE110 | < 0.1 cm³/m²·24h, light ~100% | High-gloss printable | Coffee, tea, pet food, pharma |
| Kraft paper / AL7 / CPP60 | < 0.1 cm³/m²·24h | Natural, crafted | Premium coffee, artisan |
| PET12 / LDPE110 | 50–80 cm³/m²·24h | Crystal-clear transparent | Confectionery, nuts, short best-before |
| Mono-PE (LDPE/EVOH/LDPE) | 1–3 cm³/m²·24h | Recyclable (PPWR) | Dry products, sustainability brands |
| Mono-PP | microwave-suitable up to 100 °C | Recyclable | Convenience, sauces, hot-fill |
| Kraft paper / PLA | reduced, EN 13432 compostable | Natural | Dry foods only (tea, muesli) |