Analysis of the performance of packaging materials

[China Packaging Network] Food industrial production and sales are mainly in the reform and opening up in recent decades, during this time, our food packaging is also from paper packaging, to bottle packaging and other forms, and now on the market a dazzling array of food The variety is abundant, but there is still much room for improvement and improvement in our food packaging and food production lines.

Currently, foods on the market are mainly divided into liquid, solid, and powder forms. These three forms are all different for food bottle packaging, solid food bottles such as biscuits, dried fruit to adapt to the wide-mouth form, the liquid, such as wine drinks and other designs require a unique and convenient design. Different types of food bottle packaging materials will also be different.

Common materials for food bottle packaging:

plastic

Plastic is a high-molecular polymer - resin is the basic ingredient, and then added with some additives to improve its performance made of polymer materials, the molecular weight is usually 104-106 or more, its macromolecules have a special structure, so that It has a series of special properties, such as chemical inertness, insolubility, toughness and so on. The use of plastics as a packaging material is an important symbol for the development of modern packaging technology. Because of its rich source of raw materials, low cost, and excellent performance, it has become the world's fastest growing, high-volume packaging material in the past 40 years. Plastic packaging materials are widely used in food packaging, and gradually replaced traditional packaging materials such as glass, metal, paper, etc., which have changed the appearance of food packaging, reflecting the rich and varied forms of modern food packaging, and the ease of circulation and use. Become the most important packaging material in food packaging sales packaging. The disadvantage is that there are some problems in the health and safety of certain types of foods, and the environmental pollution caused by the recycling of packaging wastes.

metal

Metallic materials are a long history of packaging materials used in food packaging for nearly 200 years. Metal packaging materials and containers are metal sheets or foils as raw materials, and then processed into various forms of containers to package foods. Because metal packaging materials have high barrier properties, excellent mechanical mechanical properties and molding processing performance, and have good resistance to high and low temperature performance, thermal conductivity and surface decorative properties, it has excellent packaging characteristics, packaging effects and production efficiency , And metal packaging material waste easier to recycle, less pollution to the environment, but also return to the furnace regeneration, saving resources and energy, which is advocating "green packaging" today is particularly important. Therefore, the application of food packaging has become more and more extensive, becoming one of the four most important modern packaging materials. However, due to the poor chemical stability of the metal packaging materials, not to acid and alkali, especially when used to package high-acid foods are easily corroded, and metal ions are easily precipitated and affect the flavor of food, which limits its scope of use to a certain extent.

glass

Glass is made of quartz, soda ash, limestone, stabilizer as the main raw material, adding clarifying agent, coloring agent, decoloring agent, etc., after temperature smelting and then condensed by a non-crystalline material. Glass is an ancient packaging material used in food packaging for more than 3,000 years. Due to the advantages of glass itself, the glass exhibits remarkable characteristics when it is used as a packaging material: high barrier, bright and transparent, good chemical stability, and easy molding. However, the glass container is heavy and easily broken. This performance defect affects the plant The use and development of packaging, especially the impact of plastic and composite packaging materials. With the development of production technology in the glass industry, (ten) high-strength, lightweight glass materials and their products have been developed. At present, China's glass consumption accounts for about 10% of the total packaging materials, and it is still an important material for food packaging towels. one.

Bottle Packaging Development Trends and Safety

The continuous research and development of new food packaging materials has given more functionality to traditional packaging materials. Many new technologies have been widely used in the food packaging industry. At the same time, there are only a few food packaging materials with only environmental protection functions. The developed and the same family are increasing efforts to focus on the development of biodegradable plastic packaging materials. Chuan replaces traditional plastic products to solve the increasingly serious pollution problems, and the environmental protection packaging can be recycled and integrated. The use of this technology has made it a green packaging for sustainable development because of its high environmental benefits, large social benefits, and considerable economic benefits. It has now become an important means of business exploitation.

All along, the relevant organizations and consumers have attached great importance to food safety. From food production to sales, all links are increasingly regulated. Indeed, food safety is related to the health of each of us. This is something that we all support. However, there are many details involved in food safety, of which we are concerned about the safety of food bottle packaging. In fact, whether it is food bottle materials or the wrong use of food bottles will affect the safety of food.

First, the correct use of food bottle materials. For example, plastic food bottles are made of PET, PE, etc. Some materials are not suitable for packaging high-temperature foods. For example, PE food bottles can release harmful substances if they are packaged in high-temperature food bottles, affecting food safety. Secondly, improper use of food bottles, such as placing food bottles in high-temperature automobiles, can affect the stability of food bottle materials and affect the safety of food bottles. Another example is the habit of many people using glass food bottles repeatedly. However, because the cleaning is not clean enough, it is very easy to infect the bacteria that grow, thus affecting food safety.

In short, we hope to be able to do more in food bottle packaging materials and use when we attach importance to food safety.

Food bottles have always been QS standards in the production process, as well as the supervision of related departments, so food bottles are relatively safe at this stage of production. However, food bottles have a long chain of use from production to filling, to logistics, to consumers. It is very important to improve the high temperature resistance of food bottle packaging materials.

The bottle packaging development market has great prospects. If the safety and environmental protection factors are taken into consideration, the domestic packaging market will surely rise quickly.