How to buy tape?

There are many types of tapes, and there are many different types of adhesives on the surface. Therefore, the performance and strength of various brands of tapes are different, so the following factors need to be considered when purchasing adhesive tapes:

The microporosity of the desired adhesive: due to the adhesive effect of the adhesive tape, the water on the adhesive on the surface of the adhesive tape penetrates into the adhesive and dries quickly after the adhesive of the adhesive tape, so that the adhesive tape becomes a part of the adhesive. Therefore, the microporosity of the surface of the desired paste is very important for the selection of the tape. If the microporosity of the device is more hygroscopic, the tape must be quickly coagulated by the adhesive, otherwise the tape with a slower coagulation speed is used. Or tape containing more adhesive.

Adhesive on the surface of the tape: The tape is coated with adhesive on the bottom tape in the manufacturer, usually after it is fully dried, and then rolled into a roll. If the adhesive tape is too wet, the tape itself will stick together tightly, and it is difficult to open it when using And some simply cannot be used.

The ordinary BOPP packing tapes (BOPP biaxially oriented polypropylene) in daily life is an indispensable daily item in any enterprise, company, or individual life. However, compared with the current domestic situation, although there are many manufacturers, the technology is uneven . In addition, the technical content of the domestic tape industry is still at a very low level, and the country still does not have a clear choice for this. People often understand the tape at a very ignorant stage, thinking that the price is low and the viscosity is good. In fact, these are wrong understandings and judgments.

BOPP Packing Tapes

So how to choose the quality of the tape? In fact, there are two standards for the quality of the adhesive tape in use, one is initial adhesion, and the other is retention. The two are inversely proportional. In general, adhesive tapes with a viscosity less than 10 are less coated with glue, generally only about 20 microns, such as stationery tapes, ordinary promotional binding tape. The initial adhesion of normal sealing tape is between 15-20, and the thickness of this tape is generally 22-28 microns. Is standard thickness. However, most of the tapes on the market are doped with impurities, so the thickness is increased. To mask the impurities, the glue is also doped with color powder, so the transparent tape appears egg yellow and light green. Such tapes are generally inferior.

How to distinguish between colored tape? For colored tape, yellow and khaki are more common. Tighten the sticky and then 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 a point, there is a lot of impurities in this glue, and the glue has no cohesion. The second is that there is too much water and it has evaporated. At this time, the initial adhesion of this double sided transparent filmic tape has dropped very much, and the hand can be distinguished. In fact, there are many ways to distinguish the quality of the tape. As long as you pay more attention to your life, you can tell the quality of the tape.

When peeling off the tape, it is easy to stick down the surface items such as the wall because of the stickiness of the tape. At this time, after only ironing with a steam iron, the stickiness of the tape will be reduced. Take it off without damaging things like walls.