86-18132280864
Huaqiang Square 5th Floor, Xinhua District, Shijiazhuang, Hebei, China
Judging the quality of BOPP adhesive tapes mainly depends on the viscosity of the adhesive tapes. High-viscosity tape is good, of course, this cannot be used as the only criterion, because some inferior tapes have a good stickiness after leaving the factory and will not stick well after keeping stock for a period of time. Good quality bopp packing tape will definitely not be like this. The main methods for judging the quality of BOPP adhesive tapes are as follows:
1. LOOKING Look at the thickness of bopp packing tapes paper tubes, the popular thickness of the standard paper tube is 3mm. Look at the inner diameter of the paper tube, the standard diameter is 76mm
2. SMELLING Smell bopp adhesive tapes, if the smell is big or smelly, it means the quality is not good.
3. CHECKING Check the surface of bopp packing tape, including whether the two sides of the tape are sticky and whether there are gaps. Good quality packing tapes are not sticky on both sides and there is no gap.
4. PULLING Pull the tension of bopp packing tape, if the tape is particularly easy to break, it is inferior. A good bopp packing tape uses a good transparent film that is not easy to break.
5. CHECKING VISCOSITY The most important thing is to check the viscosity of bopp packing tapes. There are many inspection methods. You can seal the box with bopp packing tape and then pull it up suddenly. The more the surface of the box can peel off, the better the stickiness. You can also pull a relatively long piece of tape, divide it into two, fold it in the middle position and fully fit it, and then pull it up suddenly. If the tape is not pulled up or part of the tape breaks during the tape pulling process, it means that the adhesive is strong.
Of course, there are other ways to distinguish good and bad bopp adhesive tapes. You're welcomed to tell us your method, let's communicate them.