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High-barrier EVOH (Ethylene-Vinyl Alcohol) film is a multi-layer coextruded packaging material featuring exceptional resistance to oxygen, gases, and aromas, essential for extending shelf life in food and medical applications. It is commonly combined with PA (nylon) and PE for strength and moisture protection, offering high transparency, puncture resistance, and superior odor preservation.
This video explains how EVOH film works as a barrier against oxygen:
Key Features and Benefits:
- Superior Gas Barrier: EVOH provides a high-performing barrier against oxygen, nitrogen, carbon dioxide, and helium.
- Structure: Often used in 7- or 9-layer structures (e.g., PA/PE/EVOH) to protect the water-sensitive EVOH layer between moisture-resistant layers.
- Applications: Widely used for food packaging (meat, cheese, bakery, fresh pasta), medical, and cosmetic products, according to Premier Food Packaging and Tipack Group.
- Transparency and Performance: Features high gloss and excellent clarity for retail visibility, note Vac Pac and JYTHERMOFILM.
- Extended Shelf Life: Enables long-term preservation of taste and color, reducing the need for preservatives, according to Flexipol.
Key Applications:
- Meat and Cheese Packaging: Used for vacuum bags and thermoforming films, notes JYTHERMOFILM.
- Food Preservation: Ideal for products requiring high, long-term oxygen barriers (18-24 months for some products), says JYTHERMOFILM.
- Packaging Technologies: Used in shrink films, lidding films, and pouch applications.
This video explains some of the different types of EVOH films available:
High-barrier EVOH films provide superior protection in applications requiring strict oxygen barrier requirements, such as those found on Coveris, PennPac Company, and Sealed Air.
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Web results
High Barrier, Co-extruded Film (CBAR)
Sealed Air
https://www.sealedair.com › materials-data-sheets
Sealed Air
https://www.sealedair.com › materials-data-sheets
PDF
CBAR is a 9-layer, co-extruded nylon film with an ethylene vinyl alcohol (EVOH) layer at the core that contributes to the product's exceptional barrier ...Read more
High Barrier
Polyplex
https://www.polyplex.com › blown-films › high-barrier
Polyplex
https://www.polyplex.com › blown-films › high-barrier
EVOH & Nylon co-extruded PE films offer excellent barrier properties. Both 5-layer & 7-layer machines are suitable to make the film.Read more
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High Barrier Shrink Bags & Films
Vac Pac, Inc.
https://vacpacinc.com › products-solutions › high-barrier...
Vac Pac, Inc.
https://vacpacinc.com › products-solutions › high-barrier...
EVOH is the ultimate barrier for use in flexible packaging against oxygen, nitrogen, carbon dioxide, and helium – providing protection for food products from ...Read more
What is EVOH and How is it Used in Food Packaging?
Impact Plastics
https://blog.impactplastics.co › blog › what-is-evoh-and-...
Impact Plastics
https://blog.impactplastics.co › blog › what-is-evoh-and-...
Sep 7, 2018 — When compared to other common films, EVOH is considered to have superior barrier properties. However, when exposed to moisture, EVOH loses its ...Read more
High Barrier Thermoforming Film for Flexible Packaging
PennPac Films
https://www.pennpac.com › Industry Insights
PennPac Films
https://www.pennpac.com › Industry Insights
Jan 12, 2023 — At PennPac, we offer high barrier films containing Ethylene Vinyl Alcohol copolymer, commonly called EVOH. The film is a 9-layer structure ...Read more
EVOH High Barrier Film Application on Food Packagings
Fujian Sterimed New Material Technology Co.Ltd
https://www.jythermofilm.com › evoh-high-barrier-film...
Fujian Sterimed New Material Technology Co.Ltd
https://www.jythermofilm.com › evoh-high-barrier-film...
Nov 8, 2024 — EVOH high barrier film used in tomato products to solve the tomato sauce products, the problem of high oxygen permeability, shelf life extended ...Read more
EVOH Barrier Film
Thomasnet
https://cdn.thomasnet.com › ccp
Thomasnet
https://cdn.thomasnet.com › ccp
PDF
High-barrier structures containing an EVAL™ layer have an excellent flex-crack resistance. An EVAL™ layer makes sure that the integrity of the barrier remains ...Read more
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High Barrier Films for Moisture and Oxygen Protection
CloudFilm
https://www.cloudflexfilm.com › Technical News
CloudFilm
https://www.cloudflexfilm.com › Technical News
Jun 5, 2024 — CloudFilm supplies ALOx PET, PVDC PET, EVOH co-extruded film and foil laminates to protect food, pharma and coffee from moisture and oxygen.
EVOH barrier in film packaging as food protection
Labelprint24
https://www.labelprint24.com › ... › Industry knowledge
Labelprint24
https://www.labelprint24.com › ... › Industry knowledge
The EVOH barrier is always used where a clear view of the product is required and gas exchange is to be prevented.Read more
