The Characteristics and Application of Food Grade "Compound Paper Cans"

Composite paper cans are packaging containers made of paper and other materials that have been developed in recent years.

In China, it is mainly used for the packaging of solid foods such as potato chips and tea leaves. In foreign countries, it is mostly used for health foods, oil foods, frozen concentrated foods, etc. that have high moisture-proof requirements.

First, the characteristics of composite paper cans

Composite paper cans can be used as a substitute for metal, glass, ceramic packaging containers. Compared with these packaging containers, composite paper cans have the following characteristics:

1. Because paper is the main raw material, recycling is easy;
2, excellent protection performance, waterproof, moisture-proof, a certain degree of heat insulation;
3, especially suitable for food packaging, odorless, non-toxic, safe and reliable;
4, can be filled with various shapes of goods, and filling, the noise is small;
5, can withstand positive or negative pressure, can be used for vacuum or nitrogen packaging;
6, the shape of a variety of structures, the outer layer can be color printing, has a good display effect;
7, light weight, only 30% of cans, circulation is easy, easy to use, low prices.

Second, the application of composite paper cans

Composite paper cans are commonly used for powdered solid foods such as cocoa powder, tea, sugar, salt, oatmeal, coffee, and various solid beverages. And more are used to hold a variety of food, such as juice, wine, mineral water, milk, etc.; can also be used to dress moisture-proof health foods, oil foods, frozen concentrated foods and so on. For example, about 85% of concentrated citrus juice in the United States is packaged in composite paper cans.

More than 50% of Japan's soft drinks are packaged in aluminum-based easy-open lid composite paper cans. Composite paper cans can also be used for special packaging technologies such as vacuum packaging, "dry" vacuum packaging including coffee milk powder and peanuts, and "wet" vacuum packaging of concentrated juices and condiments. Pressure packs include nitrogen-filled snack food packaging and gas-packed beverage packaging. The thermal insulation of composite paper cans can block the influence of outside temperature, but it is not suitable for freezing and heat processing packaging.