Straw can be said to appear almost every day in our lives, so a large number of use, in order to protect the environment, people now prefer to use paper straw, let's take a look at some common sense of paper straw knowledge. 1. The definition of paper straw: paper straw, or drinking tube, is a cylindrical, hollow plastic products, its main function is to drink drinks in cups, but also used to suck some cooking animal bone marrow. Usually the diameter is about 0.5 cm, but when used to suck yogurt, pearl milk tea and other drinks, will use a thicker paper straw, and some have a diameter of 1.5 cm. Some rarely used paper straws with a very small diameter are used as hot drinks. 2. Principle of paper pipette: Principle of paper pipette: paper pipette is the use of atmospheric pressure principle, the use of paper pipette to suck away part of the air, will cause the pressure in the pipe smaller, and in order to balance the pressure, atmospheric pressure will force the liquid in the pipe to rise. When the air is stopped, the liquid in the tube drops and the pressure returns to equilibrium. This is the wonderful principle and application of paper sucker.
3. The originator of paper straw: paper straw was invented by Marvin Stone in 1888. In the 19th century, Americans liked to drink cold, light liquor. To avoid the heat in their mouths, the freezing strength of the liquor was reduced. Therefore, they did not drink directly from their mouths, but drank with hollow natural straw, which was easy to break. The smell of the body will also permeate the wine. At that time, Marvin Stone, a cigarette manufacturer in the United States, got inspiration from cigarettes and made a paper straw. Under the test, it will neither break nor smell. From then on, people not only used paper straws when drinking light liquor, but also used paper straws when drinking other cold drinks. After the invention of plastics, paper straws were replaced by colorful plastic straws because of their flexibility and aesthetics. 4. The method of making paper suction pipe: after melting the plastic, it is extruded through the extrusion die, which is called the mouthpiece, and then the machine extrudes the plastic like a syringe (this process is continuous, there is a screw on the machine, it will be extruded at a certain speed). When the plastic is still softening, it is sent into the machine, formed directly, and then reused later. After cutting, it becomes a piece of paper suction pipe that we can see. 5. Recycling of paper straw: The floating made of paper straw is rough and simple in shape, but it is relatively resistant to bending and compression. Making float by oneself can not save a few money, and also can not use a lot of paper straw, but do-it-yourself, not only bring the fun of production, more importantly, from fishing, practice environmental protection, building a harmonious society concept.