Manufacturing process of degradable environment-friendly plastic bag

Abstract

The invention discloses a degradable environment-friendly plastic bag manufacturing process which comprises the following steps: adding a mixture A into a mixture B to obtain a mixture C, adding a combined additive, a degradation accelerant and a plant curing agent into the mixture C, stirring and mixing, and enabling the mixture to pass through a double-screw extruder, a drying machine, a film blowing machine and a bag making machine to obtain a plastic bag, the corn starch is adopted in the raw material and is green and environmentally friendly, harm to the environment can be reduced, the combined additive, the degradation accelerant and the plant curing agent are added into the mixture C, the mixing rotating speed of the raw material is increased, the degradation accelerant can increasethe degradation rotating speed of the plastic belt, and the plant curing agent plays a plasticizing role in preparation of the plastic bag; and the surface of the unformed plastic bag is coated witha layer of tensile film, so that the tensile strength of the plastic bag is improved, the service life is prolonged, and the thickened film is adhered to the upper surface of the unformed plastic bag,so that people can conveniently open the plastic bag.

Description

technical field [0001] The invention relates to the related fields of plastic bags, in particular to a degradable manufacturing process of environmentally friendly plastic bags. Background technique [0002] At present, China's annual output of plastics is 3 million tons, and its consumption is more than 6 million tons. The annual output of plastics in the world is 100 million tons. If calculated according to the annual plastic waste of 15%, the annual plastic waste in the world is 15 million tons. The annual plastic waste in China is more than 1 million tons. The proportion accounts for 40%. Such a large amount of waste plastics are buried in the ground as garbage, which will undoubtedly bring greater pressure to the lack of arable land. While plastics bring convenience to people's lives, they also bring troubles to the environment that are difficult to deal with. People call the disasters brought by plastics to the environment "white pollution". Plastic bags do bring con...

AI Technical Summary

Problems solved by technology

Plastic bags do bring convenience to people's lives, but the convenience at this moment brings long-term harm.

Existing plastic bags are not environmentally friendly and cannot be decomposed in the natural environment for a long time

In addition, the tensile strength of degradable plastic bags is low, which cannot meet the requirements of customers for repeated use.