Development characteristics of the hottest interna

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Development characteristics of international food packaging containers

in recent years, the development of foreign food packaging containers has the following characteristics:

1. Microwave packaging containers have become a hot spot in container production. With the rapid popularization of microwave ovens, containers used for packaging microwave cooked convenience food have developed rapidly. The packaging of convenience food, frozen food and so on is aimed at adapting to microwave cooking. This kind of food packaging container can be divided into two categories: one is the container that requires a single and does not affect the normal heating of food; The other is a container that can regulate the heating of food to a certain extent, so as to make food with a yellow or crisp surface, or the container wall can block the microwave set by a hydraulic system using a differential circuit to prevent excessive heating of food, etc. Now, the most popular food packaging is a dual-purpose tray packaging that can be heated and steamed on both microwave ovens and ordinary gas ovens or electric ovens. After it is done, it can be put on the table for dinner without changing dishes. For the sake of cost, more materials will be turned to plastic

2. The application of polyester bottles in carbonated beverage packaging has made rapid progress. It is only in the past six or seven years that polyester bottles have been widely used in the production of carbonated beverages, and polyester bottles have reached more than 20% in developed countries. The new recyclable polyester bottle can be reused for 20 times, and its weight is only 1/9 of the glass bottle with the same volume

3. Bag in box packaging continues to expand its scope of application. The bag in the box is a combined packaging container composed of a composite plastic bag with a switch tap placed in a corrugated cardboard box. It overcomes the disadvantage of inconvenient handling of large volume glass containers. Originally used in the packaging of wine, it has been expanded to a large number of liquid, semi liquid and powdered products, such as milk, fruit juice, beer, espresso, etc

4. The development of alternative containers for metal cans has always been concerned. Although the production of soft cans with cooking bags has reached a large scale, the materials of cooking bags and their packaging and processing technology are still being improved. The variety of soft cans continues to increase, and the product quality is further improved. At the same time, foreign container manufacturers are also competing to develop rigid plastic cans, and have made great progress. The products launched in the past one or two years include: Omni cooking 15 produced in the United States, material cans for 3D printing, and polyester cans for cool drinks; Steam sterilized EK cans and draft beer polyester cans produced in Japan; Polypropylene milk cans produced in Britain

5. Self heating and self cooling cans have made breakthroughs and began to enter the practical production stage. Self heating or self cooling cans produced by Japanese food manufacturers are mainly used for coffee, thick soup, rice porridge, noodles, sausage, rice wine and beverages, and have been put into the market in large quantities with success. This kind of can is made of composite plastic or aluminum, with food or beverage in the upper part and heating or cooling device at the bottom. Its global plastic processing machinery market growth can be expected to be achieved by mixing water with quicklime to produce heat; Refrigeration is obtained by the chemical reaction between water and ammonium nitrate or ammonium chloride

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