The choice of pressure sensitive tape

Ordinary packing tape in daily life (BOPP bidirectional tensile polypropylene) is an indispensable daily supplies in any enterprise, company, personal life, but relative to the current domestic situation, although many manufacturers, technology is uneven.

Moreover, the content of the domestic tape industry in technology is still at a very low stage, and the country does not have a clear choice. People’s understanding of tape is often in a very ignorant stage, that the price is low, feel viscosity is good, in fact, these are wrong understanding and judgment.

So how do you choose good or bad tape? In fact, the adhesive tape is good or bad in use there are two standards, one is the initial adhesive force, one is the retention force, the two are inversely proportional. Under normal circumstances, the adhesive force is less than 10 adhesive tape is coated with glue, generally only about 20 microns, such as stationery tape, ordinary promotional binding tape. The initial adhesive force of normal sealing tape is between 15-20, and the thickness of this adhesive tape glue is generally 22-28 microns. It is the thickness that meets the standard. But most of the tape on the market are mixed with impurities, so the thickness increases, to shield impurities, glue also mixed with color powder, so transparent tape appeared egg yellow, light green, this kind of tape is generally inferior.

How to distinguish good from bad for colored tape?

For colored tape, generally yellow and earth yellow more. The adhesive is pinched and then quickly pulled apart, you can pull out one side of the adhesive, 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 punctually, there are a lot of impurities in the glue, and the glue has no cohesion. Second, the moisture is too much, has been volatilized, at this time the initial adhesive force of this tape has declined very much, feel can be distinguished. In fact, there are many ways to distinguish between good and bad tape, as long as you pay more attention to in life, you can distinguish the good and bad tape.