Disposable lunch boxes are one of the disposable tableware and have a wide range of usability. There are various types of disposable lunch boxes. In this issue, we mainly know the following:
Plastic type: Disposable lunch boxes made of plastic mainly include polypropylene and polystyrene, both of which are non-toxic, tasteless and odorless, polypropylene is soft, and the general use temperature of polypropylene is -6 degrees to +120 degrees. , so it is especially suitable for serving hot rice and hot dishes. It can be heated in a microwave oven or even cooked in a steam cabinet. The use temperature of modified polypropylene can be controlled from -18 degrees to +110 degrees. In addition to being heated to 100 degrees for use, the lunch box can also be placed in the refrigerator for use.
Cardboard type: The cardboard snack box is made of 300-350 grams of bleached sulfate wood pulp cardboard as raw material, and is made by die-cutting and bonding or die-cutting, pressing, and shaping through a stamping and forming process similar to sheet metal processing. In order to prevent it from seeping oil or water, it is necessary to coat the surface with a film or apply chemical additives. In the process of production and use, it is non-toxic and has no side effects to the human body. However, the quality requirements for cardboard are higher, and the cost is also increased.
Starch type: edible fast food box with starch as raw material. As the name suggests, it is made of starch plants as raw materials, adding dietary fiber and other edible auxiliaries through stirring and kneading. It is refined by technology such as calcium ion chelation and calcium ion chelation. The operating temperature is -10 degrees to +120 degrees, so it is especially suitable for serving hot meals and hot dishes. It can be heated in a microwave oven, and can be refrigerated for use.
Pulp molding type: pulping and purifying wood pulp or annual herb fiber pulp such as reed, bagasse, wheat straw, straw, etc., adding an appropriate amount of non-toxic chemical additives, molding, drying, shaping, shaping, trimming, and disinfection. to make.
Post time: Jun-02-2022