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The Historical Source of Adhesive Tape and How to Discern the Quality of Adhesive Tape

2012/8/27      view:

 The historical origin of adhesive tape, how to distinguish the quality of adhesive tape from the historical origin of transparent tape in 1928 Richard Drew, Sao Paulo, Minnesota, USA, filed an application in Britain and the United States on May 30, 1928. Drew developed a very light, press-and-press adhesive. The initial attempt was not enough, so Drew was told, "Take this thing back to your Soviet Union." Boss Grant went over there and asked them to put more glue on it! uuuuuuuuuuu Scotland means mean mean mean, but during the Great Depression, several 1928 transparent tapes were found for this tape, Richard Drew, Sao Paulo, Minnesota. When Drew applied in Britain and the United States on May 30, 1928, he developed a very light flowmeter, a pressure-bonding adhesive. The initial attempt was not sticky enough, so Drew was told, "Take this thing back to your Scottish bosses and ask them to put in more rubber scroll pumps!" Scotland means mean mean mean, but during the Great Depression, several 1928 transparent tapes were found for this tape, Richard Drew, Sao Paulo, Minnesota. Why can tape stick? Of course, because it has a layer of adhesives on its surface! The earliest adhesives came from animals and plants. In the nineteenth century, rubber was the main component of adhesives, while modern polymers were widely used. Adhesives can bind things because they form bonds between their molecules and those that want to connect them, which bind molecules together firmly. The composition of adhesives varies according to different brands and types of polymers. In the early 1920s when bicolor cars became popular, 3M researcher Dick Drew overheard workers complaining constantly that the strong adhesive paper used in body painting would cause a lot of paint peeling off and they had to keep repairing it. He began to develop a low-viscosity adhesive paper, which was the earliest shelter paper in the world. However, 3M's president was reluctant to support the plan, but Drew did not give up. He seized the opportunity of a small number of orders and continued his research. A few years later, Drew invented cellophane tape. During World War II, JOHNSON &; JOHNSONNSK Bearings added waterproof coating to its medical bandages, which later evolved into a world-renowned pipe tape. In the process of building reconstruction after the war, it was widely used in pipeline engineering and became a tape connecting the world. This is the origin of the name of this silver tape to distinguish the quality of a simple judgment: 1. Look at the total thickness of the tape. 2. Look at the pull of the tape. 3. Look at the adhesive tape (that is, stickiness). 4. Look at the peeling force of the tape. Another way is to take a piece of tape and seal it on the box to see if it is easy to warp and break, and if the surface of the carton can be torn to destroy the ordinary packing tape (BOPP biaxially stretched polypropylene) in daily life is an indispensable daily necessities for any precise steel pipe enterprise, company and personal life, but compared with the current domestic situation. Although there are many manufacturers, the technology is uneven. Moreover, the technical content of domestic tape industry is still at a very low stage, and there is no clear choice for the national ventilator. People often have a very ignorant understanding of tape. They think that the price is low and the tactile viscosity is good. In fact, these are wrong understandings and judgments. So how to choose the quality of tape? In fact, there are two criteria for the quality of adhesive tape in use, one is the initial adhesive force, the other is the retention force, the two are inversely proportional. Generally speaking, tape with less than 10 stickiness is less taught by glue coating, generally only about 20 microns, such as stationery tape, ordinary promotional binding tape. The normal initial adhesive force of the sealing tape is between 15 and 20. The thickness of the adhesive tape is generally 22-28 microns. It's the thickness that meets the standard. But at present, most of the tapes on the market are mixed with chiller impurities, so the thickness increases, in order to shield impurities, the glue is also mixed with colored powder, so transparent tape appears yellow, light green, this tape is generally inferior. How to distinguish good from bad for colored tape? For colored tape, usually yellow and khaki are more. By squeezing the sticky film tightly and pulling it apart quickly, one side of the sticky film can be detached and the purity and transparency of the original film can be seen. You can also see the thickness of the glue. If no glue is pulled open or punctuated, there are a lot of impurities in the glue, and the glue has no cohesion. Second, too much water has evaporated from Wuxi fast food. At this time, the initial adhesive force of the tape has declined dramatically, and the feeling can be distinguished. In fact, there are many ways to distinguish the quality of tape. As long as you pay more attention in your life, you can distinguish the quality of tape. First water, then scrape with a small knife. Dry glue removal magic! Driving friends'staircases have been exposed to non-drying glue, such as many small accessories in the car, transparent tape used in wedding color car, certificates of some accessories, etc. When these things are removed, they often leave traces of non-drying glue hard to remove in the car or on the surface of the car body, which can not be removed, and can not be scraped with hard objects. What shall I do? In practice, the following two methods are found to be good: alcohol removal method. Dip in 95% alcohol with soft cloth and gently wipe away the adhesive. The adhesive will become soft and detached easily. At the same time, alcohol will not normally be used on plastic parts or other products.