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なぜ食品包装にEVOHフィルムなのか?

The outstanding barrier characteristics that ethylene vinyl alcohol (EVOH) film possesses against oxygen and other gases have led to its widespread employment in the food packaging industry. The purpose of this article is to investigate the many aspects that are associated with the use of EVOH film in food packaging. It focuses on the advantages, functions, and appropriateness of this material for the purpose of protecting the quality and safety of food products.

 

Superior Oxygen Barrier capabilities

Because of its exceptional oxygen barrier capabilities, EVOH film is an excellent option for use in the transportation and packaging of food products. Because of its low oxygen permeability, it prevents oxygen from entering packed food goods, which helps to maintain the products’ freshness, flavour, and nutritional content. It is especially important for products that are prone to oxidation, such as coffee, almonds, and processed meats, to possess this barrier feature.

Extended Shelf Life

The strong oxygen barrier performance of EVOH film greatly extends the shelf life of packaged food goods, which results in an extended shelf life during the packaging process. Because it reduces the amount of oxygen that is exposed to the product, EVOH film helps to slow down the oxidative processes. This, in turn, reduces the likelihood that the product will go bad and helps to preserve its quality and sensory qualities for a longer period of time. Food items that are susceptible to spoilage, such as fruits, vegetables, and dairy goods, might benefit tremendously from this phenomenon.

Protection against Flavor and Aroma Loss

The EVOH film serves as a barrier that prevents the loss of flavours and aromas in food products. This is accomplished by providing protection against the loss of flavour and aroma. By preventing the movement of volatile chemicals, such as aromatic compounds and essential oils, out of the packaging, it ensures that the flavour and scent of the product are maintained. Spices, teas, and gourmet nibbles are examples of products that particularly benefit from this feature since they have flavours that are either subtle or distinct.

 

Contamination Prevention

EVOH film serves as an efficient barrier against external contaminants, so ensuring that food products are both hygienic and safe to consume. It functions as a physical barrier, limiting the entry of bacteria, dust, and other potentially hazardous substances that could impair the quality and safety of the food that is packaged at the time of consumption. This characteristic is essential for preserving the quality of items, particularly those that are prone to contamination, such as meals that are already prepared for consumption and food for infants.

Versatility in Packaging Formats

EVOH film provides versatility in packaging formats, which allows it to accommodate a wide range of packaging requirements. The use of this material in flexible packaging structures, such as laminates and coextrusions, enables the development of individualised solutions that are specifically matched to the requirements of individual food items. The compatibility of EVOH film with other materials used for packaging, such as polyethylene and polypropylene, makes it possible to create multi-layer structures that optimise the performance of the barrier as well as the overall functionality of the packaging.

 

Transparent and Aesthetically Pleasing

The EVOH film maintains exceptional optical clarity, which enables clear visibility of the packed food goods. Additionally, the film is transparent and aesthetically pleasing. Because of its transparent nature, it allows customers to evaluate the quality, look, and freshness of the food items, which not only improves the display of the product but also increases its attractiveness to consumers. For products like confectionary, baked goods, and delicatessen items, where visual appeal plays a big role, this trait is useful since it creates a more appealing appearance.

Considerations Regarding Sustainability

EVOH film has the potential to contribute to environmentally responsible packaging techniques. Because of its remarkable barrier capabilities, it is possible to reduce the amount of material that is used. This is because thinner film structures can achieve the same level of protection as other materials. Additionally, EVOH film is recyclable, which makes it possible to have closed-loop recycling and reduces the amount of damage done to the environment.

In conclusion, EVOH film has various benefits in the realm of food packaging. These benefits include excellent oxygen barrier capabilities, an extended shelf life, protection against flavour and fragrance loss, prevention of contamination, diversity in package designs, aesthetic appeal, and concerns regarding sustainability. The remarkable performance of EVOH film contributes to the guarantee of the quality, safety, and contentment of consumers with a variety of food products. EVOH film continues to be a dependable option for keeping the freshness, taste, and visual appeal of packaged goods, despite the ongoing evolution of the food packaging business.

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