1928 Scotch tape Richard Drew, St. Paul, Minnesota, USA
On May 30, 1928, in the United Kingdom and the United States, Drew developed a very light, one-touch adhesive. The first attempt was not sticky enough, so Drew was told: "Take this thing Take them back to your Scottish bosses and ask them to put more glue! "(" Scotland "means" stingy ". But during the Great Depression, people found hundreds of uses for this tape, from patching clothes to It is very useful to protect broken eggs. Why can the tape stick to things? Of course it is because the surface is coated with a layer of adhesive! The earliest adhesive comes from animals and plants. In the nineteenth century, rubber was an adhesive. The main component; and modern is widely used a variety of polymers. Adhesives can stick things, because the molecules of their own and the molecules to be connected to form a bond, this kind of bond can firmly bind the molecules together. The composition of the adhesive, according to different brands and different types, has a variety of different polymers.