Issued on: June 23, 2020 source: China Packaging Network

Packaging printing industry, often used a variety of special paper. Today, the editor of China paper industry network starts with packaging paper, and introduces the relevant contents of packaging paper in detail.

Requirements: high strength, low moisture content, small permeability, no corrosion, and water resistance

The paper used in food packaging also requires sanitation, sterility, no pollution and impurities.

The packaging paper includes kraft paper, chicken skin paper, paper bag paper, parchment paper, glass paper, tar paper, moisture-proof paper, powder packaging paper, neutral packaging paper, translucent paper, antirust paper, oil proof paper, food packaging paper, paraffin paper, tea bag paper, red electro-optical gun paper, vacuum aluminum coated paper, etc.

Paper used to pack various goods and materials. Generally, it has high physical strength and certain water resistance. According to the characteristics of commodities, the packaging paper has corresponding special properties, the most used is to pack bulk powder granular industrial and agricultural raw materials, such as cement, fertilizer and other paper bags, which are generally made of more than 3-4 layers of paper, so it is also called multi-layer paper bag paper, which is different from other bags with light and fine commodities. This kind of packaging paper mainly requires high strength, heavy load resistance, impact resistance and appropriate air permeability. The variety and specification of food packaging paper is the most. It can be divided into two categories: inner packaging and outer packaging. The paper which directly contacts food is called inner packing paper, which is mainly clean without germs, and has the characteristics of moisture-proof, oil-proof, anti sticking and mould proof. In addition to the physical strength, the paper should be clean and beautiful, suitable for printing multi-color commodity patterns and words. The paper for liquid drinks such as milk and vegetable juice must also have excellent permeability. In order to keep and keep fresh for a long time, soft packaging paper for special beverage (see food packaging container) which is composed of paper and metal film, paper and plastic and metal film has been developed in recent years. In order to meet the need of rust prevention of metal instruments and tools, antirust paper has been developed. Most of the cardboard is also used for commodity packaging, mainly used for the manufacture of cartons, cartons and packing pads.

wrapping paper； packing paper

A general term for a class of paper used for packaging purposes. It can be divided into ordinary packaging paper, special packaging paper, trademark paper, oil proof packaging paper and moisture-proof packaging paper. It is usually of high strength and toughness. Various kinds of packaging paper have different properties and uses. For example, special fruit wrapping paper is thin and soft. The light sensitive protective paper is not transparent. Oil proof packaging paper (plant parchment, etc.) has the anti oil permeability. Moisture proof packaging paper (asphalt paper, oil paper, aluminum foil paper, etc.) has moisture-proof properties. Trademark paper is used for packaging after printing. Ordinary packing paper is used for general commodity packaging, and its quality requirements are not strict.

It can be divided into: ordinary packaging paper, special packaging paper, trademark packaging paper, oil proof paper, moisture-proof paper, etc. Ordinary packaging paper is strong and tough, used for general packaging, such as kraft paper, chicken skin paper, etc. Special packaging paper is named according to its purpose, and its properties are different, such as thin and soft fruit packaging paper, black color of sensitive protective paper and light transmission, tough cement bag paper and not easy to break. Trademark packaging paper is printed for packaging, such as candy packaging paper. Oil paper has the function of preventing oil penetration, such as plant parchment, butter paper, etc. Moisture proof paper has moisture resistance, such as cypress paper, oil paper, aluminum foil paper, etc.