How does EHAp® and EHAr® Ultra High Barrier BOPA Film keep nuts and seeds fresh?
Ultra High Barrier BOPA Film for Nuts and Seeds Packaging is the new frontier in Oxidation Resistant BOPA Packaging Film. Made from Biaxial Orientation and unique PA6 + EVOH structure, Ultra High Barrier BOPA Film for Nuts and Seeds Packaging provides an ultra-high oxygen barrier (OTR < 2 cc/(m²·day·atm)). And the unique technical support makes Ultra High Barrier BOPA Film for Nuts and Seeds Packaging the No. 1 High Oxygen Barrier Film for Nut Packaging, especially for rancidity prevention packaging. Freshness lock Nut packaging film preserves the natural oils and flavour in nuts.
Physical characteristics of Ultra High Barrier BOPA Film for Nuts and Seeds Packaging: The composite strength and toughness are high. No easily torn like Aluminum foil packaging, good puncture resistance like Polyamide. This Premium Nut snack packaging BOPA film is transparent and has no yellow; it is a kind of Freshness lock Nut packaging film. The production capacity of Ultra High Barrier BOPA Film for Nuts and Seeds Packaging is 150,000 tons yearly, which can effectively slow the spoilage of food for mass snack manufacturers.
Ultra High Barrier BOPA Film for Nuts and Seeds Packaging ensures nut crispness with O2/MV barrier. High Oxygen Barrier Film for Nut Packaging is transparent and visible. Therefore, the quality of the product can be seen by the consumer. Ultra High Barrier BOPA Film for Nuts and Seeds Packaging has high barrier performance and high toughness. So, Premium Nut snack packaging BOPA film gives storage stability for preservative-free or preservative-less products. The use of oxidation resistant BOPA Packaging Film saves the sensitive fats in nuts and dried fruit. All this is enabled by a growing capacity of 150,000 tons yearly.

| Thickness μm | Corona | Width mm |
| 15 | Single Side or Both Sides | 300-1300 |
Basic Info.
| Model NO. | Supamid® | Thickness | 15 |
| Transport Package | Carton Package | Specification | EHAp®, EHAr® |
| Trademark | Changsu | Origin | China |
Why you should use our EHAp®, EHAr®- Ultra High barrier BOPA Film for Nuts and Seeds Packaging:

PA boasts the following properties, which address the major issues of nut packaging: OTR < 2 (preserves against oxidation of unsaturated fatty acids, preventing rancidity and thus preventing off-flavours and rancid nuts)
Good moisture barrier to maintain the equilibrium relative humidity inside the pack, ensuring crispy nuts and seeds
High puncture resistance, maintaining PA's inherent puncture resistance of 9 N, protecting the pack from piercing through the vacuum pack by sharp shells and stones of the nuts
Non-yellowing high clarity film which provides a better presentation compared to commonly used aluminium foil. Based on its high barrier, it is possible to produce nuts without preservatives
EHAp®, EHAr®- Oxidation Resistant BOPA Packaging Film Applications for More Foods:
Roasted Coffee Beans: Preserves the volatile flavour oils and protects against oxidation spoilage
Granola and Cereal Clusters: Preserves the texture and flavour of granolas with nuts
Trail Mix with Dried Fruit: Controls the transfer of moisture between the fruit and nuts
Peanut and Nut Butters (Pouches): High-temperature processing (85-100°C) for hot filling nut butters
Nut-Based Flour (Almond/Coconut): Preserves high-fat flours during storage

EHAp®, EHAr®- Ultrahigh High Oxygen Barrier BOPA Film for Non-food Applications:
Industrial Lubricants: A strong barrier for lubricated mechanical parts or parts filled with grease.
Scented Potpourri: Preserves intricate flower scents for an extended shelf life.
Electronics Component Bags: Inhibits rusting of metal contacts during storage.
Premium Cosmetic Creams: Prevents yellowing or rancid appearance of upscale lotions that incorporate natural oils.
Product Parameters
| Typical Properties | Test Method | Units | Typical Value | |
| Thickness | - | μm | 15 | |
| Average Thickness Tolerance | ISO4593 | % | ±3.0 | |
| Tensile Strength | MD | ASTM D882 | MPa | 200 - 210 |
| TD | 200 - 220 | |||
| Elogation at Break | MD | ASTM D882 | % | 90 - 100 |
| TD | 120 - 130 | |||
| Heat Shrinkage | MD | ASTM D1204 (160ºC, 5min) | % | ≤ 2.0% |
| TD | ≤ 2.0% | |||
| Dynamic COF | Treated Side/ Untreated Side | ASTM D1894 | - | 0.50/0.35 |
| Surface Tension | Treated Side/ Untreated Side | ASTM D2578 | mN/m | 54/39 |
| Both Corona-treated | 54/50 | |||
| Puncture Resistance | GB/T 10004-2008 | N | 9 | |
| Haze | ASTM D1003 | % | 4.0% | |
| Oxygen Transmission Rate | 23°C, 50% RH | cc/(㎡.day.atm) | <2 ~ 8 | |
Length (m): Standard 6000 / 12000
With(mm): 300-1400
Paper core (inches): 3, 6
Packaging: 9or 4 rolls/pallet
Remark:
This data represents a typical film performance and is provided for reference only.
Changsu may modify product specifications at any time to sustain innovation.
Have Questions About EHAp®, EHAr®- Ultra High barrier BOPA Film for Nuts and Seeds Packaging?
What keeps nuts from tasting "old"?
The "old" taste comes from oxidation. Ultra High Barrier BOPA Film for Nuts and Seeds Packaging is a specific type of Oxidation Resistant BOPA Packaging Film with an OTR < 2. This keeps oxygen from getting to the oil and is critical for rancidity prevention, packaging, and fresh taste.
Why is this BOPA film better than aluminium foil for nuts?
This film supplies high composite strength and high toughness, which prevent from easily tearing of aluminium foil packaging. In addition, Freshness lock nut packaging film is transparent and visible, making the packaging more attractive to customers, while still providing the high barrier property to effectively prevent food from decay.
Can I use this film for vacuum-packed nuts?
Yes, Ultra High Barrier BOPA Film for Nuts and Seeds Packaging still keeps the high puncture resistance of PA: 9 N. So, it is a Premium Nut snack packaging BOPA film, which will not be broken under the pressure of vacuum packaging, even with the sharp edge of walnuts or shells.
Does the film support "Clean Label" products?
Yes. Since High Oxygen Barrier Film for Nut Packaging provides a very high barrier to protect flavour and freshness and inhibits food spoilage, the film can enable the production of preservative-free or less preservative nut snacks by using the oxidation resistant BOPA packaging film as a barrier to extend natural shelf life.
Can the customer see the nut quality through the film?
Yes, the Ultra High Barrier BOPA Film for Nuts and Seeds Packaging are non-yellowing. The transparent Freshness lock Nut packaging film allows transparent packaging to show product quality directly, which is more attractive to consumers and helps build brand trust through visual freshness.
How much does the High Barrier Film produce?
We have a production capacity of 150,000 Tons per year now and are still expanding. With this kind of production volume, we are able to supply our High Oxygen Barrier Film for Nut Packaging continuously and stably to worldwide snack customers, and satisfy the increasing demand for premium nut snack packaging BOPA film.
Our Services
1
Superior, consistent quality
. We furnish quality reports with essential performance indicators and aim to be your most reliable, risk-free raw material partner.
2
Demand-driven customisation, agile supply chain
Clients facing market swings want inventory optimisation and film performance tailored to their machinery and final products.
3
Continuous technical support
For urgent production timelines and material application problems, we supply rapid expert guidance.
Qualification
FSSC 22000
ISO 22000:2018
Food Contact Safe

ROHS
ISO 15987:2003
ISO 14001:2015
ISO9001
IATF 16949:2016
About CHANGSU
Xiamen Changsu Industrial Co., Ltd. (“Changsu”) is a high-tech enterprise specialising in functional film materials. Since its establishment in 2009, Changsu has offered exceptional solutions by combining R&D, intelligent manufacturing, and global application.
Two state-of-the-art production bases in China and Indonesia, with 450,000 m² production space, have made Changsu a reliable partner for speciality films worldwide.
Following the mission“Better Materials, Better Life”, Changsu offers eco-friendly and healthy film materials, such as new energy films, bio-based biodegradable films and functional BOPA films, which are ranked among the world’s top in terms of production and sales volume.
Changsu is the first Chinese company to be involved in the UN FAO’s SAVE FOOD initiative. Changsu is playing a critical role in this global effort to tackle food loss with innovative packaging solutions.
Changsu continues to innovate and provide value with the goal of making the world a safer, better and greener place through material innovation.
Let us hear from you:
📞 +86-592-6892968
✉️ Marketing@chang-su.com.cn











