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How to distinguish the quality of color sealing tape?

Publish Time: 2020-06-22   Views:
Color sealing Bopp tape is used for marking and shielding. Generally, there are more beige and turquoise. In addition, there are common colors of red, green and blue lights, which are very selective. How to distinguish the quality of color sealing Opp tape?
The simplest way is to tighten the color sealing tape and quickly pull it apart. If you can pull one side of the tape away, you can see the purity and transparency of the original film. The most important thing is to see the thickness of the glue. If no glue is pulled apart or dotted, there are a lot of impurities in the glue, and the glue has no cohesion. Second, there is too much water, which has evaporated. At this time, the initial adhesion of the tape has declined greatly, and the handle can be distinguished. Apply the colored sealing tape on the object, the thicker the glue with better shielding property is, the better the quality is.
In appearance, the color of the whole roll of the color sealing tape with less glue and impurities is very deep, and the light transmittance of the tape is high after pulling. The color of the whole roll of the good tape is not much different from that of the one after it is pulled out, because the good color sealing tape has a strong shielding property and there is no color superposition.
Another way to distinguish is to look at the surface of the color sealing tape. There are bubbles when the tape is just sliced into finished products. After a week's placement, the bubbles will basically disappear. The surface of the pure tincture gum tape is bright and clean without any white spots. There are a lot of irregular white spots on the tape mixed with impurities, which are different from air bubbles.
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