The straw was invented by MarvinStone in the United States in 1888. In the 19th century, Americans liked to drink cold and light-flavored wine. In order to avoid the hot air in their mouths, they drank it directly without their mouths, but they drank it with hollow natural straw. However, the natural straw was easy to break and its own taste would penetrate into the wine. At that time, Marvin Stone, a cigarette manufacturer in America, got inspiration from cigarettes and made a paper straw. After tasting, it will neither break nor smell. Since then, people not only use straws when drinking light-flavored wine, but also like to use paper straws when drinking other cold drinks. After the invention of plastic, because the flexibility and beauty of plastic are better than paper straws, paper straws are replaced by colorful plastic straws. The inventor did not apply for a patent.
second, what is the principle of the suction pipe
The suction pipe uses the principle of atmospheric pressure. When it is used, it sucks some air against the suction pipe, which will reduce the pressure in the pipe, and in order to balance the air pressure, the atmospheric pressure will force the liquid in the pipe to rise. When the inhalation is stopped, the liquid in the tube drops and the pressure returns to equilibrium. This is the wonderful principle and application of straw.
Third, the production of straws
Production method: after melting the plastic, it passes through an extrusion die, which is called a mouthpiece, and then the machine extrudes the plastic like a syringe (this process is continuous, and there is a screw on the machine, which will be extruded at a certain speed). When the plastic is still soft, it is sent to the machine, directly molded, and then cut by the machine later, and it becomes a piece-by-piece straw that we see.