Food packaging box, as the name implies is used to package food boxes, can be classified according to materials such as: wooden box, paper box, cloth box, leather box, iron box, corrugated packaging box, etc., can also be classified according to the name of the product such as: gift box, wine box, chocolate box, pen box, food packaging box, tea packaging box, etc. Now it has evolved into boxes made of wood, paper and other materials mixed together. Packing box function: ensure the safety of food in transportation, improve the grade of products, etc. The purpose of food packaging box is mainly to protect food from the influence of chemical physical and microbial factors, to ensure that the nutritional composition and inherent quality of food is unchanged, so as to protect the health of consumers. In addition, packaged food provides many convenient conditions for transportation, storage, sale and use, while promoting sales. Reasonable food packaging can prolong its storage life and shelf life, and greatly reduce the tendency of food deterioration. Factors affecting the quality of food are: – light; The second is temperature; Three is oxygen; Four is humidity; Fifth, microbes. From the food production, sales and consumption of three points of view, the purpose of food packaging box: – is to prevent deterioration, ensure quality; Two is to prevent microbial and dust pollution; Third, rationalize and speed food production; Fourth, it is conducive to transportation and circulation; Fifth, increase the commodity value of food. Food packaging box according to its raw material composition, divided into polyethylene, polypropylene, polystyrene, polyvinyl chloride and other types, polyethylene, polypropylene is safe plastic, can be used to contain food. Disposable foam plastic boxes full name is one-time foamed polystyrene snack box, the main raw material is polystyrene and foaming agent, polystyrene is styrene polymers, arrive at 65 degrees Celsius, there will be some free state of styrene and migration of a kind of harmful substances called dioxins, harm to human body. In addition, blowing agent is also a kind of chemical materials harmful to human body. Some takeout food boxes that violate the national norms of consumption will produce an unpleasant smell when they are filled with hot food, which is the toxic substances released by foaming plastic food boxes. These substances will cause damage to the human central nervous system and seriously threaten people’s health.
