How to ensure the safety and preservation of food in the application of Polyethylene Composite Film in the field of food packaging?
Publish Time: 2024-07-29
In the application of Polyethylene Composite Film in the field of food packaging, it plays a vital role in ensuring the safety and preservation of food.
1. Material selection and quality control
Material safety:
Polyethylene (PE) material itself is widely regarded as a safe and non-toxic plastic material suitable for food packaging. However, it should be noted that Polyethylene Composite Film may contain additives or residues, which may have a potential impact on food safety if exceeded. Therefore, when choosing Polyethylene Composite Film, it should be ensured that it meets the relevant food safety standards and regulatory requirements.
High-quality, formal channel products are usually more secure, and consumers and enterprises should choose products with quality certification and test reports when purchasing.
Composite film material:
Polyethylene Composite Film is often composited by multiple layers of materials, and the selection of each layer of materials and the composite process have an important impact on the performance of the film. It should be ensured that each layer of material meets the food safety standards and no harmful substances are introduced during the composite process.
2. Film performance requirements
Moisture-proof performance:
Polyethylene Composite Film has excellent moisture-proof performance, which can effectively prevent food from getting damp and deteriorating. This is particularly important in food packaging, especially for foods that are susceptible to moisture, such as nuts, biscuits, etc.
Barrier performance:
Some special Polyethylene Composite Film also has good barrier properties, such as oxygen barrier and light barrier, which can further extend the shelf life of food. For example, for foods that need to be stored away from light, composite films with light-blocking properties can be selected for packaging.
Physical strength:
The physical strength of the film is also a key factor in ensuring that it is not easy to break or leak during use. Polyethylene Composite Film with sufficient physical strength should be selected for food packaging.
3. Packaging design and use
Reasonable design:
The packaging design should take into account factors such as the shape, size, and weight of the food to ensure that the film can fit closely to the surface of the food and reduce the intrusion of air and moisture.
At the same time, the packaging should be clearly marked with information such as the production date, shelf life, and instructions for use so that consumers can use and preserve the food correctly.
Correct use:
When using Polyethylene Composite Film for food packaging, relevant operating procedures and hygiene standards should be followed. For example, the film should be cleaned before packaging to avoid contaminating food; excessive stretching or twisting of the film should be avoided during the packaging process.
Storage conditions:
The storage conditions of food are also an important factor affecting its safety and preservation effect. The appropriate storage environment, such as temperature and humidity, should be selected according to the nature of the food and packaging requirements.
4. Supervision and testing
Supervision system:
The government and relevant departments should establish a sound supervision system to supervise and test the quality of food packaging materials to ensure that products on the market meet relevant standards and regulatory requirements.
Testing methods:
With the help of advanced testing methods and technologies, such as gas chromatography and mass spectrometry, the harmful substances in Polyethylene Composite Film are qualitatively and quantitatively analyzed to ensure its safety.
In summary, through efforts in material selection and quality control, film performance requirements, packaging design and use, supervision and testing, the safety and preservation effect of Polyethylene Composite Film in the field of food packaging can be ensured.
