Paper cups are common disposable items in our lives. At present, the mainstream paper cup raw materials include PE coated paper, PLA coated paper and plastic-free cupstock paper. Different paper cup raw materials have their own advantages and disadvantages in terms of environmental protection, degradability, and production costs.
1. Advantages of PE coated paper
PE coated paper is a raw material for paper cups coated with polyethylene film on the surface of the paper. The advantage is that it has good water resistance, which can effectively prevent liquid penetration, so that the paper cup is not easy to leak to a certain extent.
In addition, the production cost of PE coated paper roll is relatively low, and the processing technology is simple, making it relatively cheap, suitable for large-scale production and use.
Disadvantages
Since PE is a plastic material, the use of PE coated paper cups will increase the generation of plastic waste and cause a burden on the environment.
Due to the combination of PE film and paper, the recovery and recycling of paper cups becomes complicated, and improper disposal may cause pollution to the environment.
2. Advantages of PLA coated paper
PLA coated paper is covered with polylactic acid (PLA) film on the surface of the paper. PLA is a biodegradable plastic made from plant raw materials, which is more environmentally friendly than traditional plastic materials. After the paper cups are discarded, they can be decomposed into non-toxic and harmless substances after proper treatment, which is friendly to the environment.
PLA is made from renewable resources such as plant starch and is relatively less dependent on petrochemical resources, helping to reduce the need for non-renewable resources.
Disadvantages
Due to the limitation of production process and raw material cost, PLA coated paper is relatively expensive and the market price is high, so it is not suitable for large-scale and low-cost production.
The biodegradation of PLA requires certain temperature and humidity conditions. If the waste is not treated under suitable conditions, its ecological advantages will be weakened.
3. Advantages of Plastic-free paper
Plastic-free paper refers to the raw material of paper cups without adding any plastic coating. The advantage is that it is absolutely environmentally friendly, completely degradable, and has no negative impact on the environment.
At the same time, the plastic-free paper adopts special waterproof technology to make it have a certain waterproof performance, which can meet the needs of general daily use.
Disadvantages
Compared with PE-coated paper and PLA-coated paper, plastic-free paper has poorer permeability resistance, and leakage problems may occur when it is used or left for a long time.
At present, the production technology of plastic-free coated paper is still in the development stage, the production process is relatively complicated, and the production cost is relatively high, making its price relatively high, which is not suitable for large-scale promotion and use.
Different paper cup raw materials have their own advantages and disadvantages. When selecting raw materials for paper cups, the characteristics of different materials and actual use needs should be considered comprehensively, so as to balance environmental protection and economic benefits, and strive to reduce the impact on the environment. At the same time, the continuous progress and innovation of science and technology will also bring better paper cup materials, which is more in line with the concept of sustainable development.
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Post time: Jul-29-2023
