January 6, 2022
The protection for foodstuffs from oxygen is key to prevent the waste of large quantities of food. The plastic industry has developed resins and the associated technologies to transform them efficiently into packaging with high protective capability. The next step, already ongoing, is to improve the recyclability of the plastic packaging and large-scale plastic wastes collection network.
In the new SKFP presentation on rigid packaging (available at https://sk-fp.com/sk-functional-polymer/brochure/) , the following two ranges of products widely used in oxygen-barrier rigid packaging and the solutions they bring to rigid packaging are presented:
- Orevac® grafted polyolefins used as tie layers in multilayer packaging;
- EvasinTM EVOH, resins with ultra-high barrier to oxygen but also to aromas.
Orevac® resins are used in multilayer packaging to bond the various layers of plastic necessary to produce the packaging. They show outstanding bonding between material such as polyethylene (PE), polypropylene (PP), EVOH, polyamides (PA). The Orevac® product range can be based on PE, PP, EVA and EMA depending on the materials to be bonded in the multilayer packaging. They develop also high bond strength with EVOH and polyamides, two materials with high barrier to the permeation of oxygen. Orevac® tie layers can be ready-to-use tie or concentrates which are usually diluted in polyethylene at 10 to 25 weight percent. Concentrated tie layers are both economical and enable a slight reduction of carbon footprint of the packaging.
EvasinTM EVOH resins contain between 29% to 44% of ethylene. The high ethylene content EvasinTM grades have better flexibility, suitable for processing technologies requiring an orientation of the packaging. The low ethylene content EvasinTM grades have high barrier properties. They can therefore be used to reduce the EVOH barrier layer and produce recyclable “monomaterial” rigid (or flexible) packaging, which contains less than 5 weight percent of EVOH.
According to M. Bruno Guillemat, SKFP Technical Leader, “Ecodesign of plastic packaging is key to any new packaging introduced on the market. SKFP has the broadest range of tie and barrier resins to produce recyclable multilayer structures for future flexible and rigid packaging”.
| Orevac® PE | Orevac® PP | |
| Ready-to-use Grades | 18300 18362 | 18729 18730 |
| Concentrate Grades | 18341 OE825 | – |
January 6, 2022
The protection for foodstuffs from oxygen is key to prevent the waste of large quantities of food. The plastic industry has developed resins and the associated technologies to transform them efficiently into packaging with high protective capability. The next step, already ongoing, is to improve the recyclability of the plastic packaging and large-scale plastic wastes collection network.
In the new SKFP presentation on rigid packaging (available at https://sk-fp.com/sk-functional-polymer/brochure/) , the following two ranges of products widely used in oxygen-barrier rigid packaging and the solutions they bring to rigid packaging are presented:
- Orevac® grafted polyolefins used as tie layers in multilayer packaging;
- EvasinTM EVOH, resins with ultra-high barrier to oxygen but also to aromas.
Orevac® resins are used in multilayer packaging to bond the various layers of plastic necessary to produce the packaging. They show outstanding bonding between material such as polyethylene (PE), polypropylene (PP), EVOH, polyamides (PA). The Orevac® product range can be based on PE, PP, EVA and EMA depending on the materials to be bonded in the multilayer packaging. They develop also high bond strength with EVOH and polyamides, two materials with high barrier to the permeation of oxygen. Orevac® tie layers can be ready-to-use tie or concentrates which are usually diluted in polyethylene at 10 to 25 weight percent. Concentrated tie layers are both economical and enable a slight reduction of carbon footprint of the packaging.
EvasinTM EVOH resins contain between 29% to 44% of ethylene. The high ethylene content EvasinTM grades have better flexibility, suitable for processing technologies requiring an orientation of the packaging. The low ethylene content EvasinTM grades have high barrier properties. They can therefore be used to reduce the EVOH barrier layer and produce recyclable “monomaterial” rigid (or flexible) packaging, which contains less than 5 weight percent of EVOH.
According to M. Bruno Guillemat, SKFP Technical Leader, “Ecodesign of plastic packaging is key to any new packaging introduced on the market. SKFP has the broadest range of tie and barrier resins to produce recyclable multilayer structures for future flexible and rigid packaging”.
| Orevac® PE | Orevac® PP | |
| Ready-to-use Grades | 18300 18362 | 18729 18730 |
| Concentrate Grades | 18341 OE825 | – |