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Aug 11,2023

How is EVOH Used in Food Packaging and What Is EVOH?

Are you involved in the food industry or packaging industry? If so, you're well aware of the importance of preserving the freshness and quality of food. When it comes to perishable items, using reliable packaging materials is essential to ensure the safety and well-being of consumers.

One such material that has gained significant recognition in recent years is EVOH film. Ethylene vinyl alcohol (EVOH) film is a polymer widely utilized in the packaging industry, acting as a crucial component in plastic sheets. Its versatility and protective properties make it an indispensable resource for preserving a wide range of perishable goods.

In this blog post, we will delve into the world of EVOH films, understanding their role in food preservation and packaging. From their production process to the benefits they offer, we will explore the many facets of this remarkable material. So, let's embark on this journey to unravel the secrets of EVOH films and their significant contribution to the food industry.

Understanding EVOH Films: Unveiling the Power of Ethylene Vinyl Alcohol

EVOH films, short for ethylene vinyl alcohol films, are a type of polymer extensively employed in the packaging industry. Serving as a linchpin in plastic sheets, these films play a pivotal role in various forms of food packaging.

Available in transparent and colored variants, EVOH films boast a glossy surface that enhances the visual presentation of packaged food. Notably, these films are classified as food-grade materials, ensuring the safety and well-being of both humans and animals. In fact, they comply with all the main FDA regulations pertaining to food preservation.

The production of EVOH films involves a coextrusion process. EVOH resins are extruded and transformed into sheets and containers, utilizing techniques such as blow molding to achieve the desired shape. Whether it's transparent or colored films, EVOH materials can be used to create protective and visually appealing packaging.

Unveiling the Benefits: Safeguarding Food with EVOH Films

EVOH films offer a myriad of features and benefits that make them indispensable in the food industry. Let's explore the advantages they bring to the table:

Protection from Contaminants

EVOH films act as a reliable barrier against germs, bacteria, and dust particles, safeguarding the integrity of packaged food.

Low Permeability to Gases

These films exhibit low permeability to gases, ensuring that the enclosed food remains unaffected by external factors.

Barrier against Oxygen and Water Vapors

By creating an impermeable shield, EVOH films prevent the entry of oxygen and water vapors, thus prolonging the shelf life of perishable items.

Heat Resistance

EVOH films possess excellent heat resistance, making them suitable for packaging food that requires high-temperature processing or storage.

Preservation of Flavor

These films help preserve the flavor and aroma of food, ensuring that consumers enjoy the product as intended.

Waterproof Properties

EVOH films offer water-resistant properties, safeguarding packaged food against moisture and potential damage.

Puncture Resistance

With their puncture-resistant nature, EVOH films protect food from potential contamination caused by microorganisms entering through punctures.

Extended Shelf Life

Thanks to their low permeability to oxygen and water vapors, EVOH films contribute to the extended shelf life of food, keeping it fresh for longer periods.

Cost-effectiveness

EVOH films provide a cost-effective packaging solution for businesses, offering both protection and presentation value.

Versatile Options

EVOH films are available in single and multiple-layer options, allowing for customizable packaging solutions tailored to specific food products.

Unleashing the Power of EVOH Films: Enhancing Food Preservation

Food preservation is crucial for storing perishable items, and EVOH films serve as a reliable support system alongside preservatives. Let's explore how these films enhance the preservation process:

Preserving Frozen Food

EVOH films excel in preserving frozen food, protecting it from spoilage caused by bacteria and enzymatic activity. By maintaining a barrier against contaminants, EVOH films ensure the safe consumption of frozen food.

Shielding against Environmental Particles

Dust and environmental particles pose a threat to the freshness of food. EVOH films act as protective barriers, preventing these particles from compromising the quality of the packaged food. Whether for commercial, industrial, or domestic purposes, EVOH films provide a reliable solution for storing various food items.

Extended Shelf Life for Candies and Chocolates

EVOH bags and pouches offer an ideal packaging solution for candies and chocolates. These films contribute to an extended shelf life, allowing consumers to enjoy these treats for an extended period until the expiry date arrives.

Customizable Sizes and Functions

EVOH films provide the flexibility of customization, enabling manufacturers to create packaging solutions in different sizes and functions to suit specific requirements. This versatility ensures that food products are stored securely and conveniently.

Exploring Packaging Options: The Versatility of EVOH Films

EVOH films offer remarkable versatility in various packaging applications. Let's explore the different packaging options where EVOH films can be employed:

Vacuum Bags and Pouches

EVOH films are widely used in the production of vacuum bags and pouches, ensuring the safe and long-term preservation of food.

Laminated Films

EVOH films are often utilized as a component in laminated films, providing added protection and preserving the freshness of the packaged food.

Blister Films

EVOH films find application in blister films, protecting individual food items and maintaining their quality throughout the packaging process.

Lids

EVOH films serve as reliable lids for containers, creating an airtight seal and preserving the freshness of the enclosed food.

Stretch Films

In the form of stretch films, EVOH materials are employed to securely wrap and protect various food items, ensuring their integrity during transportation and storage.

Cups

EVOH films contribute to the production of cups, providing a safe and visually appealing packaging solution for beverages and other liquid food products.

Blow-molded Containers

Utilizing the blow-molding technique, EVOH films can be shaped into containers, offering a secure and durable packaging option for a wide range of food products.

Trays

EVOH films are commonly used to create trays, ensuring the safe storage and transportation of food items while preserving their freshness.

Blow-molded Bottles and Jars

EVOH films find application in the production of blow-molded bottles and jars, providing an airtight packaging solution that preserves the contents for an extended period.

Unleashing the Potential: Food Types Ideal for EVOH Film Packaging

EVOH films are highly suitable for preserving a diverse range of food items. Let's explore the types of food that can be effectively stored using EVOH film packaging:

Meat and Poultry Products

EVOH films excel in packaging meat and poultry products, safeguarding them against bacterial contamination and ensuring consumer safety.

Dairy Products

The sensitivity of dairy products to bacteria necessitates the use of EVOH films for packaging. These films offer the necessary protection to maintain the quality and freshness of dairy items.

Vegetables and Fruits

EVOH film packaging helps preserve the freshness and nutritional value of vegetables and fruits, keeping them crisp and flavorful for an extended period.

Grains and Pulses

EVOH films serve as effective barriers against moisture and contaminants, making them ideal for packaging grains and pulses, preventing spoilage and maintaining their quality.

Baked Food

Baked goods can be effectively stored using EVOH film packaging, preserving their texture and taste, and ensuring that they remain fresh for consumption.

Processed Food

EVOH films play a crucial role in packaging processed food, maintaining its quality, and extending its shelf life.

Our Take

EVOH films have revolutionized the food packaging industry, providing a reliable and versatile solution for preserving perishable items. From their protective properties to extended shelf life benefits, EVOH films offer numerous advantages that enhance food preservation.

Their low permeability to gases, barrier against oxygen and water vapors, heat resistance, and puncture-resistant nature make them indispensable in the packaging of various food products.

Whether it's meat, dairy, fruits, or baked goods, EVOH films ensure that food items retain their freshness, flavor, and nutritional value. With their customizable options and diverse packaging applications, EVOH films offer an ideal solution for businesses seeking reliable packaging solutions.

FAQs

Are EVOH films safe for food packaging?

Yes, EVOH films are food-grade materials that comply with FDA regulations, ensuring their safety for use in food packaging.

Can EVOH films be used for both dry and liquid food?

Absolutely! EVOH films are versatile and can be used to package both dry and liquid food items.

How do EVOH films contribute to extended shelf life?

EVOH films possess low permeability to oxygen and water vapors, creating a barrier that helps extend the shelf life of perishable food items.

Are EVOH films cost-effective for businesses?

Yes, EVOH films offer a cost-effective packaging solution, providing protection, extended shelf life, and appealing presentation value.

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