Ordinary packing tape and packaging tape (BOPP biaxially oriented polypropylene) in daily life is an indispensable daily necessities for any enterprise, company, or individual. However, compared to the current domestic situation, although there are many manufacturers, the technology is uneven. . Moreover, the technical content of the domestic tape industry is still at a very low level, and the country has not yet made a clear choice. People often have a very ignorant understanding of tape, thinking that the price is low and the feel is good. In fact, these are wrong understandings and judgments.
So how do you choose the quality of the tape? In fact, there are two criteria for the quality of adhesive tape in use, one is the initial adhesion, the other is the retention, and the two are inversely proportional. Under normal circumstances, the adhesive force is lower than the No. 10 adhesive tape is less glue overcoating, generally only about 20 microns, such as stationery tape, ordinary tape used for promotional bundling. The initial adhesive force of normal packing tape is between 15-20. The thickness of this tape glue is generally 22-28 microns. It is the thickness that meets the standard. However, most of the tapes on the market are mixed with impurities, so the thickness increases. In order to hide the impurities, the glue is also mixed with toner, so the scotch tape appears egg yellow and light green. This kind of tape is generally inferior.
How to distinguish between good and bad colored tape? For colored tape, it is generally yellow and khaki. Squeeze the sticky and quickly pull it apart, you can pull off the glue on one side, and you can see the purity and transparency of the original film. You can also look at the thickness of the glue. If no glue is pulled apart or pulled apart in spots, there are a lot of impurities in the glue, and the glue has no cohesion. The second is that there is too much water and it has been volatilized. At this time, the initial adhesion of this tape has dropped greatly, and the hand feel can be distinguished. In fact, there are many ways to distinguish between good and bad tape. As long as you pay more attention in your life, you can tell whether the tape is good or bad.