Laser micro perforator for MAP modified atmosphere packaging

What is MAP packaging?

Plastic polymers are widely used in the food packaging industry and are most commonly used in fresh produce such as fruits, vegetables, fruit salad packaging, etc. MAP (Modified Atmosphere Packaging) is an innovative Flexpak technology that keeps products fresh and attractive throughout their expected shelf life by changing the atmosphere surrounding the packaged product. Changing the atmosphere around the packaged food can improve the visual, textural and nutritional appeal of the food, as well as the use of chemicals in the food, and it is considered a minimal processing process compared to preservatives or stabilizers.

How to improve the safety and shelf life of food?

The basic principle of food preservation by gas regulated packaging is to replace the air in the package with protective gas, so that the food is placed in a protective gas environment, inhibiting and preserving the growth and reproduction of bacteria and mold that cause food spoilage, protecting the color of fresh meat, delaying the aging process of fresh fruits and vegetables, and extending the shelf life of food.

Application of MAP packaging

1. Fresh aquatic products

Fresh fish and aquatic products are perishable foods with high water content. Anaerobic bacteria are one of the corruption factors of fresh aquatic products during low-temperature storage, which will produce toxins that are harmful to human health. Fresh gas is composed of O2, CO2, N2 and other gases. Gas-regulated packaging of fatty fish is the main factor leading to the corruption of fat oxidation acid, and protects the gas from the corruption of gases such as CO2 and N2. The gas-regulated packaging of fresh aquatic products is 0~4鈩?with a shelf life of 15~30 days, depending on the variety and freshness. In order to maintain the gas concentration in the package, the packaging film must be a composite plastic film with high gas barrier.

2. Fresh meat and poultry

The preservation of fresh pork, beef and mutton requires freshness and the red color of fresh meat. O2 oxidizes the myoglobin in the meat into oxymyoglobin, and the meat is bright red. In the case of vacuum packaging and other oxygen-deficient packaging, the oxygenated myoglobin in the meat is reduced to myoglobin, and the meat is lavender, which will be mistaken for stale meat by consumers, affecting sales. The protective gas CO2, O2 and other gas components of fresh pork gas packaging. High concentrations of oxygen can keep the red color of fresh pork, and carbon dioxide gas is used for preservation.

Three, fresh fruits and vegetables

After the fruits and vegetables are harvested, they still absorb O2, discharge CO2, and metabolize and breathe. If there is content in the package. The O2 content decreases, and the CO2 content increases. Fruits and vegetables can maintain weak aerobic respiration, delay the aging process of fresh fruits and vegetables, reduce the metabolic rate, and extend the storage period.

Fourth, cooked food

Western sausages and fish, shrimp, preserved Chinese cooked food, such as meat, need to be preserved.

Five, baked goods

The deterioration of baked goods is mainly mold, and they need to be preserved against mold. Protective gas is used to protect gas components such as CO2 and N2. The shelf life of 20-year-old modified atmosphere cakes (excluding cream cakes) at ~25鈩?is 20~30 days. The shelf life of 30~35-day modified atmosphere mooncakes at 鈩?is 90~120 days. In order to maintain the gas concentration in the package, the packaging film must be a composite plastic film with high gas barrier.

In short, modified atmosphere packaging (MAP) is an effective way to extend the shelf life of packaged food.

What are the advantages of MAP packaging?

?Longer shelf life and storage period

?Better control over the product

?The seller can guarantee the product quality

?More product availability

? Better manufacturing capabilities

How to use laser technology to create modified atmosphere packaging? (MAP)?

The application of gas-modified packaging mainly takes advantage of the high evaporation of plastic films. This packaging aims to find a proper balance between the gases in the packaging to reduce the spoilage process of food. Since each fresh produce has a different metabolic process, it is crucial to choose the right type of film to optimize the exchange of gases inside and outside the packaging.

However, many films do not establish the correct relationship between gases entering and leaving the packaged product. So what can be done?

Laser micro-perforation

This problem can be solved. It can form micropores on the surface of plastic film. According to the perforation size of the laser head (ranging from 50 to 200 microns), the inlet and outlet airflow can be controlled to maintain the proper balance between gas and humidity in the package.

The advantage of punching packaging is that it is easy to operate and is also suitable for packaging companies to provide OEM services for different types of products. Everyone needs to package according to their own characteristics. In order to achieve the proper balance of gas in the package, each product must be customized for packaging. Laser equipment can optimize the entire production cycle. Each product can be packaged without changing any machine; only simple parameter settings and operations are required through the laser control software. Micro-perforated packaging is also widely used in Wal-Mart. Do you want to innovate your packaging?

What is the difference between micro-perforation, macro-perforation and laser perforation?

Food packaging is very important to induce food waste. Micro food packaging, packaging uses macro and laser perforation to extend the shelf life and improve the moisture retention of the product. All products have different requirements for extending the shelf life.

What is the application of laser MAP (modified atmosphere packaging)?

1. MAP production bag

2. MAP flow wrap film