nvention process
The Velcro was invented by a Swiss engineer, George de mestaller (1907-1990) When he came back from hunting, he found the needle tail grass sticking to his clothes. After observing with a microscope, he found that the fruit of needle tail grass has a hook like structure, which can adhere to the fabric So he thought of fixing the wool surface with a hook.
In fact, this structure has long existed in the feathers of birds. The positive feathers of birds are composed of feather shafts and feathers. The feather is composed of many slender feather branches. There are rows of pinnacles on both sides of the feather branches. One side of the feather twig is attached with hook, while the other side is attached with loop, which makes the adjacent feather twigs hook up with each other to form a solid and elastic feather, so as to fan the air and protect the body. The feather twigs separated by external force can be hooked again by the pecking and combing of the beak. Birds often peck the fat secreted by the tail fat glands and apply it when pecking and combing the feathers to keep the structure and function of the feathers intact.
The name of Velcro was converted from the English name "Velcro" of Rockwell products in the United States. In the early 1980s, "Velcro" products entered China and were distributed by Sanxin company. Because there was no Chinese name, it was quite inconvenient to communicate, and because the main feature of "Velcro" was that one side of the fabric with hooks and one side of the fabric with fluff, which were pasted together to produce natural adhesion, and when pulled by hand, they would separate naturally, It's a bit like magic, so it's named Velcro.
In industry terms, it is called snap fastener. It is a kind of connecting accessory commonly used in luggage and clothing. It is divided into male and female sides: one side is thin and soft fiber, and the other side is elastic fiber with barbs. The male and female are buckled. Under a certain horizontal force, the elastic hook is straightened, loosened from the pile ring and opened, and then restored to the original hook shape. Such repeated opening and closing can reach as many as 10000 times.
Collapse and edit the application industry of this paragraph
It is widely used in clothing factories, shoe and hat factories, luggage factories, sofa factories, curtain factories, toy factories, tent factories, glove factories, sports equipment factories, medical equipment factories, electronic plastic factories and all kinds of military products. It is widely used in all walks of life all over the world.
The width of Velcro is between 10mm and 150mm. There are 15 commonly used specifications in the market: 12.5mm, 16mm, 20mm, 25mm, 30mm, 40mm, 50mm, 60mm, 75mm, 80mm, 100mm, 110mm, 115mm, 125mm and 135mm. Other sizes are generally customized.
