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Nine-layer co-extruded barrier film is a high-performance packaging material with a multi-layer composite structure. It uses advanced co-extrusion technology to tightly combine materials of different materials during the extrusion process to form a film with a multi-layer structure. Each layer of material has a specific function and works together to provide comprehensive protection.
In the nine-layer co-extruded barrier film, the barrier layer usually uses high-performance materials such as nylon (PA) and ethylene-vinyl alcohol copolymer (EVOH). These materials have excellent gas barrier properties and can effectively prevent the penetration of gases such as oxygen and carbon dioxide, thereby extending the shelf life of food and maintaining the freshness and original flavor of food. At the same time, other layers such as the support layer and the adhesive layer provide the necessary mechanical strength, heat sealing performance and interlayer adhesion to ensure the integrity and stability of the entire film material.
In food packaging, oil resistance is an important consideration. Many foods, such as potato chips, nuts, meat products, etc., contain high fat content. If the packaging material is not oil-resistant, the grease will penetrate into the packaging material, causing the packaging to deform, crack, and even contaminate the food, affecting the taste and quality of the food.
The nine-layer co-extruded barrier film has excellent oil resistance, and its special material and structure can effectively block the penetration of grease. Even if it is in contact with high-fat foods for a long time, the film material can maintain its original shape and strength, and will not be deformed or cracked due to the erosion of grease. This allows the food to remain fresh and non-greasy in the package, providing consumers with a better eating experience.
Humidity is one of the main causes of food spoilage. If the packaging material is not resistant to moisture, moisture will penetrate into the interior of the package, causing the food to absorb moisture, mold, and deteriorate. This will not only shorten the shelf life of the food, but also pose a potential threat to the health of consumers.
The nine-layer co-extruded barrier film has excellent moisture resistance, and its barrier layer can effectively block the penetration of moisture. Even in a humid environment, the film material can maintain its dryness to prevent food from getting damp and deteriorating. This is especially important for foods that need to be stored or transported for a long time, such as dry goods, condiments, ready-to-eat foods, etc.
During food production and storage, high temperature environments are inevitable. For example, baked goods need to be baked at high temperatures, while some ready-to-eat foods need to be sterilized under high temperature conditions. If the packaging material is not resistant to high temperatures, it will deform, melt, or produce harmful substances at high temperatures, affecting the quality and safety of the food.
The nine-layer co-extruded barrier film has excellent high temperature resistance, and its material and structure can withstand various challenges in high temperature environments. Even during high-temperature processing and storage, the film material can maintain its stability and integrity and will not deform or melt due to high temperatures. This allows food to maintain its original quality and taste in a high temperature environment, providing consumers with safer and more reliable food.
In the field of frozen foods, the low temperature resistance of packaging materials is also crucial. If the packaging material is not resistant to low temperatures, it will become brittle, cracked, or lose elasticity during the freezing process, causing the food to be contaminated or deteriorated.
The nine-layer co-extruded barrier film has excellent low-temperature freezing resistance, and its material and structure can maintain its flexibility and elasticity in a low temperature environment. Even during a long freezing process, the film will not become brittle or crack, and can fit the shape of the food tightly to prevent the frozen food from being damaged during storage and transportation. This allows frozen food to maintain its original quality and taste, providing consumers with fresher and more delicious food.
The excellent performance of the nine-layer co-extruded barrier film makes it have a wide range of applications in the field of food packaging. Whether it is snack food, frozen food, ready-to-eat food or condiments, this film can provide an ideal packaging solution.
In snack food packaging, the nine-layer co-extruded barrier film can prevent the penetration of grease and moisture, and maintain the refreshing taste and crisp texture of the food. In frozen food packaging, its low-temperature freezing resistance can ensure that the food maintains stable quality during a long freezing process. In ready-to-eat food packaging, the nine-layer co-extruded barrier film can provide the necessary barrier protection and heat sealing performance to ensure that the food is not contaminated during storage and transportation. In condiment packaging, its oil and moisture resistance can prevent the leakage and deterioration of condiments.
