We live in ordinary packing tape (BOPP BOPP) is the daily necessities for any enterprise, company, individual life indispensable, but compared to a situation at home, although many manufacturers, technology is uneven. Moreover, the technical content of the domestic adhesive tape industry is still in a very low stage, and the country does not have a clear choice. People often know the tape is in a very ignorant stage, think the price is low, feel good viscosity, in fact, these are wrong knowledge and judgment.
So how do you choose the tape? In fact, the adhesive tape in the use of good and bad there are two criteria, one is the initial viscosity, one is to maintain the force, the two are inversely proportional. Under normal circumstances, adhesive force less than 10 adhesive tape is glue coated, teach less, usually only about 20 microns, such as stationery, tape, ordinary promotion belt used adhesive tape. The initial adhesive force of the normal sealing tape is between 15-20. The thickness of the adhesive tape is 22-28 microns. Is the standard thickness. But the tape on the market are mostly mixed with impurities, so the increase of the thickness of shielding impurities, the glue is also mixed with the toner, so transparent tape appeared egg yellow, light green, this tape is generally inferior.
For colored tapes, how to distinguish between good and bad? For the colored adhesive tape, it is usually yellow and khaki. Will be sticky, pinched, and then quickly opened, you can pull one side of the adhesive off, 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 or pulled apart, there's a lot of impurities in it, and the glue has no cohesion. Two is too much moisture, has been volatile, at this time, the tape has already dropped a lot of adhesive force, feel can distinguish. In fact, there are many ways to distinguish between good and bad tape, as long as the life of more attention, you can distinguish between good and bad adhesive tape.
