vacuum thermoformed packaging - lid & forming film
NUREL offers an advanced range of high-viscosity polyamides and copolyamides, such as PROMYDE® BF740, BF840 L, BF940 and BF36SC, specifically developed for deep thermoforming applications in high-performance food packaging. Promyde grades for thermoforming deliver outstanding oxygen barrier, exceptional flexibility, and superior transparency, along with unmatched tear and puncture resistance.
These solutions are ideal for preserving large cuts of fresh meat, whole cheeses, and other foods that require uniform thickness distribution, effectively extending shelf life and playing a decisive role in reducing food waste.
OXYGEN BARRIER PROPERTIES
PROMYDE® BF740 is a high-barrier copolyamide offering up to twice the gas barrier of standard PA6, allowing for layer downgauging and extended shelf life.
It is suitable for retort applications while maintaining barrier properties, transparency, and excellent thermoformability.
With a processing temperature of 200°C, it supports easy co-extrusion in both blown and cast processes.
Its lower OTR enables reduced PA content in PE/PA structures, improving compatibility with the PE recycling stream.
SOLVING CURLING IN ASYMMETRIC MULTILAYER STRUCTURES FOR LIDS
Curling is a common issue in asymmetric PA/PE film extrusion used for the production of lidding films and vacuum bags. Curled films are difficult to wind, print, or thermoform properly.
This problem arises from the difference in solidification temperature between polyamide (PA) and polyethylene (PE). It can be effectively addressed with PROMYDE® BF940, a copolyamide specifically designed for asymmetric multilayer structures.
key requirements for deep thermoformed vacuum packaging
OUR PROPOSALS - vacuum deep thermoforming packaging APPLICATIONS
PROMYDE® BF36SC – KEY SOLUTION
Increased productivity and transparency, premium performance at a competitive cost, and an improved alternative to standard PA6 with enhanced properties and easy processing.
PROMYDE® BF540
Reliable standard grade for vacuum bag production.
PROMYDE® BF840
Designed for deep thermoforming with enhanced barrier performance.
PROMYDE® BF940
Offers higher stiffness, transparency, and improved barrier, along with curling elimination.
SPECIAL SOLUTIONS FOR BONE-IN-MEAT PROMYDE® BF642 & BF840
- Puncture resistance
- Gloss & transparency for attractive shelf presence
- Uniform thickness distribution
- Minimal thickness variation at the edges
PROMYDE® BF740 – ENHANCED BARRIER
Allows for thickness reduction, cutting down on plastic usage, or alternatively, boosts shelf life when maintaining standard thickness by offering superior oxygen barrier.
| STANDARD | ADVANCED | SUSTAINABLE | |||
|---|---|---|---|---|---|
| BF40 (PA6) | BF36SC | BF540 (PA6/66) | BF940 | BF740 | |
| OXYGEN BARRIER | •• | •• | • | •• | •••• |
| PUNCTURE RESISTANCE | •• | ••• | •••• | •• | •••• |
| TEAR RESISTANCE | • | •• | ••• | • | •• |
| CURLING | • | •• | •• | ••••• | •••• |
| TRANSPARENCY | • | •• | ••• | •••• | •••• |
Products
PA6 & PA66
Polymers with ultra-high oxygen barrier properties
MARKETS
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