Disposable fast-food boxes have been changed from foam lunch boxes to environmentally-friendly lunch boxes. The original foam lunch boxes were eliminated due to their high temperature resistance and environmental damage during the production process. Plastic lunch boxes, paper lunch boxes, wooden lunch boxes, and degradable lunch boxes were waiting for them. and many more. Among them, plastic has the characteristics of low toxicity, high melting point, strong plasticity, easy production, and relatively low cost, and thus has become the mainstream material for manufacturing disposable snack boxes. Below Disposable Round Bowl suppliers and everyone introduce in detail the several forms of disposable lunch boxes.
Lunch boxes are divided into environmentally-friendly lunch boxes, which are mainly plastics, paper, starch and rare metals.
1. Plastic type
Disposable lunch boxes made of plastic are mainly PP polypropylene and PS polystyrene. They are non-toxic, tasteless and odorless. PP is soft, so it is especially suitable for hot dishes and hot dishes. It can be heated in a microwave oven. It can even be cooked in a steam cabinet. In addition to being heated to 100 degrees, the modified PP lunch box can be put into the refrigerator for refrigerating.
PS is hard and transparent, but it is easy to tear. PS starts to soften when it is used at a temperature of 75 degrees, so it is not suitable for hot dishes and hot dishes. However, PS has low temperature performance and is the best packaging material for ice cream.
In order to reduce costs, some lunch box factories use PP as the box and PS as the lid. The advantage is that the lid is transparent and the PS is hard. It can be made of thinner sheets to reduce costs. However, consumers of this design must understand two materials. It’s important to remember not to put the whole box of rice in a microwave oven with the lid on.
2. Cardboard type
The cardboard snack box is made of bleached sulfate wood pulp cardboard as a raw material, and is subjected to die-cutting bonding, die-cutting pressing, and shaping through a stamping process similar to sheet metal processing. In order to prevent oil or water from leaking, it is necessary to coat the surface or apply chemical additives. It is non-toxic and has no side effects on the human body during production and use. However, the requirements for the quality of paperboard are higher, and the cost is also increased.
3. Starch type
Starch-based edible snack box, as the name suggests, is based on starch plants, added dietary fiber and other edible additives and kneaded. It uses biological compounding, glycan cross-linking, calcium Refined by ion chelation and other technologies, it is especially suitable for hot dishes and hot dishes. It can be heated in a microwave oven and put in the refrigerator for refrigerated use.
4. Pulp molding
Wood pulp or reed, bagasse, wheat straw, straw and other annual herbaceous plant fiber pulp are crushed and purified, and added with a suitable amount of non-toxic chemical additives, formed, dried, shaped, shaped, trimmed, and disinfected, such as Unbleached Paper Pulp Cup. The appearance of the product is not high, and it will also increase the pollution of wastewater.
Biodegradable Sugarcane Fast Food Package
5. Plant fiber type
In terms of environmental protection advantages, plant fiber lunch boxes have obvious advantages. It uses plant fibers extracted from straw, rice husks, bagasse, etc. as raw materials, and adds additives such as molding agents, binders, and water resistance agents to the molding machine. After drying, shaping, disinfection and other post-processing. These agricultural wastes can become industrial raw materials, which is helpful to the comprehensive utilization of agricultural resources.
6. Degradable plastic lunch box
The raw material for the manufacture of this kind of lunch box is degradable plastic. The so-called degradable plastic is to add a certain amount of additives in the plastic production process, such as photosensitizer, starch and other raw materials, such as Biodegradable Sugarcane Fast Food Package. After the product is used and discarded after being exposed to nature for three months, it can be broken into fragments into complete shapes, thereby improving the environment.
The above are several forms of disposable lunch boxes, I hope to help everyone.