Black and white packing boxes have different materials, uses and prices. White packing boxes are generally made of disposable foam plastics. They are used to pack rice and cold food that need to be kept warm. They are cheaper than black packing boxes. Some substances are added to improve the quality when making black packing boxes and are used to pack hot food. There is more food and the price is slightly more expensive.
1. Material
White packing boxes are mostly made of disposable foam plastic, while black packing boxes may have more impurities. Plasticizers and talcum powder are added during the production process to improve the quality of the plastic. Generally speaking, the material of black packing boxes is better than Disposable foam plastic boxes are of better quality, but long-term use can cause harm to the human body.
2. Use
White or transparent white packing boxes are generally used to pack rice. They are generally used to hold cold food and drinks that do not need to be kept warm. You can directly see the condition of the food in the packing box. Usually black items have a better heat absorption effect. Therefore, black packaging boxes are used to pack various dishes and soups that need to be kept warm.
3. Price
Black packaging boxes of the same size are generally about 0.5 yuan more expensive than white ones. Black packaging boxes look more solid than white ones, and have better thermal insulation. The production process is more troublesome, so the price will be more expensive. .
