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Co extruded film for food packaging

2022-06-26

Used for fresh meat refrigeration and preservation of pigs, cows, and sheep, it is required to immerse the body patch in water at 80 ℃ for 1-3 seconds (or adhere to it when exposed to heat in a hot oven), with excellent barrier performance,


Packaging of products that can be stored at low temperatures below -25 ℃.


1. High barrier: Different plastic materials have significantly different barrier properties, and co extruded films achieve high barrier effects on oxygen, water, carbon dioxide, odors, and other substances.


2. Strong functionality: resistant to oil, moisture, high-temperature cooking at 120 degrees Celsius, resistant to low temperature freezing, quality preservation, freshness preservation, and odor preservation. It can be used for vacuum packaging, sterile packaging


Inflatable packaging.


3. Low cost: Compared to glass packaging, aluminum foil packaging, and other plastic packaging, co extruded film has a significant cost advantage in achieving the same barrier effect.


Due to its simple process, the cost of the produced thin film products can be reduced by 10-20% compared to dry composite films and other composite films.


4. Flexible structural design: adopting different structural designs can meet your different quality requirements.


5. High strength: The co extruded film has the characteristic of stretching during the processing, and the strength of the plastic can be correspondingly increased after stretching. Nylon and metallocene polyethylene can also be added in the middle


Wait for plastic materials to have composite strength that exceeds that of general plastic packaging, without delamination, good flexibility, and excellent heat sealing performance.


6. Small capacity ratio: The co extruded film can be packaged in vacuum shrink packaging, with a capacity to volume ratio of nearly 100%, which is incomparable to glass, iron cans, and paper packaging.


7. No pollution: No residual solvent pollution problem, green and environmentally friendly.


Main uses


Suitable packaging for nylon co extruded stretch film products


Raw meat: frozen beef, frozen pork, meat chunks, meat slices;


Meat products: ham, bacon, sausage, roast meat, roast chicken, Soy egg;


Dairy products: cheese, butter;


Aquatic products: frozen fish, pickled fish, simulated crab meat;


Powder products: coffee, powdered cheese;


Specialty products: dried tofu, pickled vegetables, peanuts, dates, dried fresh vegetables, local specialties, etc.


Advantages Introduction


The product of this project has excellent barrier performance through EVOH and two layers of PA, which can effectively prevent the dispersion of volatile substances in the packaging and block external odors and moisture from affecting the packaging


The pollution of packaging ultimately plays a role in ensuring product quality, extending shelf life, and directly forming packaging with high barrier requirements, suitable for packaging of meat, poultry, seafood, cheese, and other foods.


High barrier stretch film for meat products refers to the requirement for high-speed automatic packaging that can adapt to vacuum continuous automatic packaging machines; Good barrier performance, packaging materials should be able to meet the requirements of the content well


Quality assurance requirements, maintaining the quality and flavor of the content; Can withstand heating and sterilization treatment, maintain a flat appearance after treatment, and the packaging film edge does not curl or other phenomena; To have good heat sealing strength


The degree and thermal adhesive effect ensure that the package does not break or leak after sterilization treatment; Has good heat sealing properties for inclusions, that is, the hot surface still has good heat sealing strength even after being contaminated by oil stains or residues;


Transparent and visible, able to clearly see the form of the content, in order to increase consumer attention to the product.


matters needing attention


1、 Nylon co extruded film has moisture resistance, stable chemical properties, and high temperature resistance. Nylon film is greatly affected by temperature, and strong ultraviolet radiation can accelerate the aging of nylon film. Therefore, in storage


When placing nylon film, avoid direct sunlight.


2、 Intense temperature changes can make plastics very fragile. When using nylon film, we must try to avoid extreme heat and cold as much as possible, in order to prevent nylon film


Thermal expansion and contraction can shorten the lifespan.


3、 The humidity in the air can also have a certain impact on the performance of plastics. Therefore, we must remember not to place the nylon film in damp and non ventilated areas


The sample may cause the packaging bag to rot; Moreover, humid air can cause bacteria to grow and multiply on the packaging bags, thereby affecting their use.


Previous article: Basic Techniques of Modified Atmosphere Packaging


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