Tea packaging bags uses different raw materials for processing and production due to its different design uses and styles. The basic types of raw materials for processing and production can be roughly divided into plastics, metals, bamboo, wood, ceramics, etc. Various raw materials have different advantages and disadvantages in the processing and production. At the same time, the same type of raw materials are also divided into different grades according to their advantages and disadvantages. Composite packaging bags, aluminum foil bags, plastic packaging bags 1. Plastic composite tea packaging bags Plastic composite raw materials are mainly divided into basic raw materials such as aluminum foil and aluminized. Storage requirements are carried out, among which aluminum foil and aluminum plating are mainly used in the production of vacuum tea packaging. Its characteristics are high air tightness, high light-proof, high air tightness, high moisture resistance, and it can solve the problem of oxygen inside the package very well, which is conducive to long-term storage. 2. Iron tea packaging in metal cans is one of the most commonly used types of tea packaging. Iron is the main raw material for processing, and the common raw materials for iron processing are tin-plated iron (first-class tinplate), fine sand iron, coarse sand iron, single-sided gold, double-sided gold, etc. Among them, tin-plated iron is usually used for welding process is more complicated The production of tea packaging, which itself has very good stamping resistance and corrosion resistance. Therefore, iron materials such as fine sand iron and coarse sand iron are usually used for stamping production of cans, box bottoms and lids, because of their low stamping requirements and low printing requirements. Tin cans are the best container for storing tea. Tin is widely used in the food industry at home and abroad, and it is one of the best materials for food preservation and packaging. It is called “green metal”. Because tin cans have the characteristics of strong antioxidant capacity, good air tightness, low air permeability, good conductivity, and no odor, they are often used as utensils for storing and drinking tea. According to the inspection of relevant institutions, the use of tin cans to store tea can preserve the taste and quality of tea for a long time, and the storage time can exceed eight years. 3. Synthetic paper is one of the common raw materials for tea packaging, and its low cost and high cost performance are favored by today’s tea packaging production and sales businesses. The division of paper raw materials is mainly based on its hardness and printability. According to its hardness, there are usually double white paper, single copper paper, double copper paper, etc., which are often used in the production of handbags and the lamination of carton skins. In addition, gray board paper and medium lead board are also commonly used paper packaging materials. One of them is used in the internal structure and construction of gift boxes. 4. Glass jars, porcelain jars, bamboo jars, wooden boxes, and paper boxes Glass jars have excellent gas and moisture resistance, but are light-transmitting, fragile, heavy and expensive. Clay jars can be protected from light, but are fragile and heavy like glass jars. Improper handling of bamboo jars and wooden boxes can easily cause tea to absorb odor and absorb moisture and breath. Paper boxes or paper bags are easy to absorb moisture and rupture. These materials are not ideal for tea packaging. Material. However, nesting a plastic vacuum packaging bag on this basis can avoid problems such as changes in the taste of tea and odor.