来源网址：http://www.rsoau.com 2019-03-31 13:32:41
Disposable tableware can be divided into three categories according to the source of raw materials, production process, degradation mode and recovery level.
Biodegradable products: paper products (including pulp moulding, paperboard coating), edible powder moulding, plant fiber moulding, etc.
2. Photo/biodegradable materials: Photo/biodegradable plastics (non-foaming), such as photobiodegradable PP;
3. Easy to recycle materials, such as polypropylene (PP), high impact polystyrene (HIPS), biaxially stretched polystyrene (BOPS), polypropylene composite products filled with natural inorganic minerals, etc.
Look: In addition to looking at the name, address and date of production of the manufacturer on the packaging, we should also look at the light, if there is blue light or impurities, it is very good to buy. Smell: Do you have a pungent smell? Convenient chopsticks are too white. Many people think disposable chopsticks are hygienic and safe when eating out. But in order to reduce costs, some small workshops use inferior wood. In order to give chopsticks "beauty", some methodologies will use sulfur to fumigate and bleach. When eating with these chopsticks, the residual sulfur dioxide will enter the body. Secondly, some tableware is poor in sealing, and the bottom of the cup is easy to seep; thirdly, a few tableware manufacturers add a large number of fluorescent whitening agents in order to make the cup whiter.
According to clinical experiments, fluorescent substances can mutate cells, and once fluorescent agents enter the body, they will become potential carcinogens. Tableware is an indispensable item for us to receive guests. Many businessmen in the market make use of people's ignorance of how to choose tableware to make it better. Those bad tableware are likely to cause harm to our health, so we must learn how to choose tableware. This article will tell you how to choose cutlery. The disposable tableware number "3" represents that the material of the plastic is PVC. This material is easy to produce harmful substances at high temperature, even in the manufacturing process, it will release, poisons with food into people, may cause congenital defects of newborns and so on. At present, the container of this material is seldom used to pack food. If used, do not let it be heated. The disposable plastic lunch box tableware number "4" represents that the material of the plastic is LDPE. Common products are fresh-keeping film, plastic film, etc. Thermal resistance is not strong. Usually, qualified PE fresh-keeping film will melt when the temperature exceeds 111 C, leaving some plastic preparations that can not be decomposed. Moreover, when food is heated by wrapping it with a fresh-keeping film, the oil in the food can easily dissolve the harmful substances in the fresh-keeping film. Therefore, when food is put into the microwave oven, the wrapped fresh-keeping film must be removed first. Disposable tableware is difficult to degrade, and it is still difficult to recycle.
So what is the right alternative? In order to answer this question, we must have a full understanding of the following questions before we can reach a scientific conclusion. In the streets and lanes of cities in our country, tourist attractions, along railway lines and rivers and lakes. This kind of abandoned disposable tableware can be seen everywhere, which is shocking and has caused serious pollution to the environment. This kind of "white pollution" not only increases the labor intensity of sanitation workers and brings visual pollution to people, but also increasingly pollutes the land resources and water resources on which we live, and also brings many inconveniences and hazards to people. It is gratifying that our country has done a lot of work in this area, and has made great achievements. With the scientific guidance and strong support of the government, various environmental tableware emerged at the historic moment and achieved good social results.
The degradable granule manufacturer first pulps the yellow bamboo and straw fibers and stops mixing with dextrin. After stirring, monoglyceride and citric acid can be reduced. The function of citric acid is to adjust the pH value. After that, the filler calcium carbonate, reinforcing agent, oil-proof agent and waterproof agent were mixed equally. The first step Huixinke disposable environmental protection tableware manufacturer is to pour these mixtures into the box mould to stop pressing and forming, to make a solid, heat-resistant, cold-resistant, acid-alkali-resistant, tough degradable lunch box. After burying the degradable lunch box in the soil for 2 weeks, it began to degrade. After 8 weeks, it could be completely degraded, safe and environmentally friendly without purification.