Starch-based degradable meal box and forming method thereof

Abstract

The invention discloses a starch-based degradable meal box and a forming method thereof. The starch-based degradable meal box is prepared from, by weight, 58 parts of starch, 15 parts of PE plastic, 19 parts of soybean milk powder, 12 parts of flour, 1 part of edible gum, 3 parts of pigment, 12 parts of calcium carbonate, 8 parts of glutinous rice flour and 9 parts of composite biochar. The forming method comprises the steps of preparing a mixture, conducting tabletting, conducting coloring, conducting punching and forming, and conducting cutting and trimming to obtain a final product. According to the starch-based degradable meal box and the forming method thereof, the toughness of the disposable meal box is improved, the disposable meal box is prevented from being damaged due to collision, and the starch extraction component is added into the raw materials, so that the disposable meal box can be quickly degraded in the nature after being used, and white garbage in life is reduced.

Description

technical field [0001] The invention relates to environmental protection and the technical field of degradable lunch boxes, in particular to a starch-based degradable lunch box and a forming method thereof. Background technique [0002] Disposable fast food boxes have changed from foam lunch boxes to environmentally friendly lunch boxes. The original foam lunch boxes have been eliminated because they are not resistant to high temperatures and the production process has caused damage to the environment. Plastic lunch boxes, paper lunch boxes, wooden lunch boxes, etc. Among them, plastic has become the mainstream material for manufacturing disposable fast food boxes due to its low toxicity, high melting point, strong plasticity, easy production and relatively low cost; disposable lunch boxes made of plastic are mainly There are two kinds of PP polypropylene and PS polystyrene, both of which are non-toxic, tasteless and odorless, and PP is relatively soft. Generally, the use te...

AI Technical Summary

Problems solved by technology

[0002] Disposable fast food boxes have changed from foam lunch boxes to environmentally friendly lunch boxes. The original foam lunch boxes have been eliminated because they are not resistant to high temperatures and the production process has caused damage to the environment. Plastic lunch boxes, paper lunch boxes, wooden lunch boxes, etc. Among them, plastic has become the mainstream material for manufacturing disposable fast food boxes due to its low toxicity, high melting point, strong plasticity, easy production and relatively low cost; disposable lunch boxes made of plastic are mainly There are two kinds of PP polypropylene and PS polystyrene, both of which are non-toxic, tasteless and odorless, and PP is relatively soft. Generally, the use temperature of PP is -6 degrees to +120 degrees, so it is especially suitable for hot meals and hot dishes. It can be used in microwave ovens. It can be heated in a steam cabinet or even cooked in a steam cabinet. The temperature of the modified PP can be controlled from -18 degrees to +110 degrees. In addition to being heated to 100 degrees, the lunch box made of this PP can also be put into Use in the refrigerator; PS is hard and transparent, but it is easy to tear. PS starts to soften when the temperature reaches 75 degrees, so it is not suitable for hot meals and dishes. However, PS has good low temperature performance and is the best for ice cream. Packaging materials; the molecular structure of polystyrene plastic is stable, and it is not easy to be degraded by microorganisms in the natural environment. After long-term accumulation, the discarded polystyrene plastic has caused huge pollution to the environment and caused great harm to the living environment of human beings.

[0003] However, the existing disposable lunch boxes are usually recycled and then incinerated after use, and the smog after incineration enters the air to cause air pollution, and some disposable lunch boxes are directly discarded, which is difficult to be discarded in nature. Microorganisms decompose, resulting in too much white garbage in the living environment, causing environmental pollution