What is a PE bag? What is a CPE bag? What is an OPP bag? What is a degradable bag?(two)
In the last article, we shared with you what are PE bags, CPE bags and OPP bags, and today we continue to discuss with you what are the degradable bags on the market.
This is what I want to share with you today, because I received an order from the UK.The customer requires that the packaging bag for packaging the water cup must be an environmentally friendly degradable bag.Traditional PE bags and CPE bags cannot be used, and if they are used, they will face fines.
Environmentally friendly degradable bags are usually produced from materials consisting of some plastic materials and plant fibers, modified starch or other photosensitizers and biodegradants.Degradation methods are usually these, photodegradation, biodegradation, water degradation, light and biological degradation.
Due to the promulgation and implementation of the European plastic restriction order, the traditional non-degradable plastic bags have been abandoned by many countries due to the pollution and damage to the environment.This kind of bag which can be degraded by the natural environment and has no pollution to the environment is warmly welcomed by the market.
From the analysis of production cost, the cost of degradable bags is higher than that of bags made of all the above materials.In the case of comparable quantities, the cost of degradable bags is 2-5 times that of PE bags.The main reason why the cost of degradable bags varies so much depends on the material used.
Usually, the degradable bag will start to decay significantly after three months in the natural environment, it will be fragile and easily damaged, and the tensile force will become worse until it will be completely decomposed by the natural environment.However, the cost of the bag with such an effect is relatively high, so the factory that produces the bag thinks to reduce the cost and changes the material ratio of the bag.Extending the original three-month decay to six months, many factories will become semi-degradable bags, and the production of such bags is about half or less than that of full-degradable bags.
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