Xi'an Water Paper Cup is a necessity in our daily life. I remember when I was young, my mother started with the simplest drinking water and taught us how to drink water in a paper cup. So we know that thirsty, knowing to find a water-paper cup to pour water, but almost never think of the origin of the cup. Today, I will listen to Xiaobian to talk about the development of the cup.
To be honest, if you look at the functions, the leaves and other items that the early humans used to hold the water, although they can't be counted as cups, should be regarded as the prototype of the cups. After that, people have already borrowed items to hold them. The subjective consciousness of water.
Now the earliest cups with evidence are found in the Neolithic Age, when people began to learn to make pottery, and modern archaeologists also discovered many of the pottery cups of the time. I once saw an "shell black pottery cup" in the National Museum, which is the representative cultural relic of the Neolithic Longshan culture. The whole body is black and bright, the upper part is shaped like a modern goblet, and the lower part is like a candlestick. The so-called "egg shell pottery" means that its thickness is like an eggshell. This can be counted as an incredible craft in today, so it is well-deserved as "the most exquisite production of earth civilization four thousand years ago." But this is an example. At that time, the craftsmen who mastered this kind of craftsmanship were rare, and the output was even limited. At that time, people should drink more ordinary pottery figurines. Even nobles could not use this kind of fines as daily necessities. Like the "shell black pottery cup", it is more like a ritual burial. The mausoleum, this also has no words to indicate the formation of social class differentiation at that time.
As the craftsmanship of the later generations is getting more and more refined, the types and materials of the cups are becoming more and more abundant, such as the beast-shaped cups made of bronze, the beast-shaped cups made of bronze, the jade, etc. After the maturity of the porcelain-making technology, the samovars of the "Definitely Officials" are not the same.
In modern society, the cups we can reach are mostly plastic cups, glasses and paper cups. Plastic cups are commonly used in space glass and AS plastic. Space glass, also known as PC engineering plastics, is a widely used material worldwide, and its main component is polycarbonate. This material is lightweight, durable, and has excellent insulation, elongation, dimensional stability, chemical resistance, and high strength, heat resistance and cold resistance. It also has the advantages of self-extinguishing, flame retardant, non-toxic, colorable, etc. The disadvantage is that it has insufficient hardness compared with metal, which results in its appearance being easier to scratch. AS plastic is a copolymer of acrylonitrile (A) and styrene (S). It has moderate weather resistance, is not affected by high humidity environment, and is resistant to general oils, detergents and mild alcohol. It is not easy to withstand fatigue. Produces internal stress and cracks. The material has high transparency. It is commonly used to make plastic products such as trays, cups, cutlery, toothbrushes, instrument mirrors, and packaging boxes.
With the continuous improvement of living standards, people's demands are also changing, especially in terms of diet. Therefore, a large number of disposable cups on the market came into being. Disposable paper cup products are made of whole wood pulp food grade high quality environmental protection paper with PE environmental protection food film to ensure the cup body is waterproof, oil proof, leak resistant and heat resistant. The pattern is uniform, clear, beautiful, healthy and environmentally friendly. The biggest advantage of these disposable paper cups is that they are very convenient and recognized by people, so they are very popular and can be seen in many places.
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