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We know that all foods have a shelf life. In order to extend the shelf life of their products, food manufacturers usually work hard on their packaging. They usually inject gas or vacuum into the food packaging bag. The principle is to create a hypoxic environment to inhibit the growth and reproduction of bacteria on food, so as to prolong the shelf life of food bags. Among them, inflatable packaging is widely used in the packaging of puffed food. There are two reasons for this:

As one of the world's three drinks, tea is known as the beverage of the 21st century, and is favored by the world for its natural nutrition and health care quality characteristics. The nature of tea also determines the packaging of tea is very exquisite. Why is that? Because tea is a special commodity, imperfect packaging will often damage the shape, color and fragrance of tea. In order to achieve long-term storage and transportation, tea needs to be effectively packaged.

When packaging goods, businesses generally choose a beautiful plastic packaging bag for goods. But do you know the quality of these plastic bags? I believe many laymen will not be able to tell the difference. I want to tell you today: what to pay attention to when buying plastic bags.

Packaging bags used for direct packaging of food are all called food packaging bags. Since the food is to be packaged directly, the packaging bag is required to be non-toxic, sterile, and not contaminated before it can be packaged. Therefore, many food manufacturers often use some special methods to sterilize the packaging bags after packaging the food. Only in this way can it be ensured that the food will not deteriorate quickly and its shelf life can be ensured. Let’s introduce several common sterilization methods for food packaging bags.

Many people think that plastic packaging bag is not environmentally friendly, actually this is not entirely true. Yes, many plastic packaging bags on the market are made of materials that are difficult to degrade, and this kind of packaging bag is indeed not environmentally friendly. However, with the rapid development of packaging industry, the innovation of material application technology and people's increasing attention to the concept of environmental protection, more and more plastic bags are made of environmentally friendly materials.

The common points and differences of vacuum packaging bags, deoxygenated packaging bags and retort packaging bags

With the continuous development of society, people's living standards have improved and the pace of life has sped up. Reducing kitchen work has become people's demand. Frozen food is favored by people because of its convenience, delicacy and rich variety. People pay more and more attention to the safety of frozen food.

​Are you bothered by the short shelf life of food? Are you still afraid that food packaging will spoil easily? Now here comes welfare! Here are six ways to extend the shelf life of your food packaging!

Kolysen packaging, a professional flexible packaging manufacturer, believes that stand up bags have advantages in improving product grade, strengthening shelf visual effect, portability, convenient use, freshness and sealability. The stand up bag can be made of 2 layers, 3 layers and other materials. It depends on the packaged products. The oxygen isolation protective layer can be added as needed to reduce the oxygen permeability and prolong the shelf life of the products.

Shrink film is a late-model of heat-shrinkable packaging material. Due to easy recycling, non-toxic, odorless, good mechanical properties, and particularly environmentally friendly, pets have become an ideal substitute for PVC shrink film in developed countries.

Food wrapping paper is a kind of packaging product with pulp and paperboard as the main raw materials. It needs to meet the requirements of non-toxic, oil resistant, waterproof, moisture-proof and sealing, and meet the requirements of food packaging safety.  Food wrapping paper because of its direct contact with food, most of its packaging items are direct entry food, so the most basic requirements of food wrapping paper must meet the requirements of food hygiene, and then according to the different requirements of food wrapping paper, must also meet the relevant technical standards.  

Spout stand up pouch or bag is a kind of flexible packaging bag with a horizontal support structure. It has a spout at the top or side, whether it is opened or not, its self-supporting structure can be supported independently.