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How to distinguish the product quality of colored tape

by:Gangyuan      2023-01-28

The colored tape is for the convenience of marking and masking. There are more beige and khaki tapes on the market. The colored tape is the color of the film itself, or the color of the glue that can be controlled. It depends on the type of tape product. How to see the thickness of the glue: Pinch the adhesive tape tightly and then quickly pull it apart. You can pull the glue on one side to see the purity and transparency of the original film. If the glue is pulled apart or dotted, such There are certain impurities in the glue, because of the small or poor cohesion of the glue and other factors. Another factor is that there are too many water molecules in the glue and have volatilized. At this time, the initial adhesion of the tape has decreased, and the hand feel can also be distinguished. For example, if the yellow tape is coated on the object, it has good shielding property and strong viscosity, etc., the better the quality of the tape product. Compared with the appearance of the tape, the color of the whole roll is darker, and the light transmittance of the tape is higher after being pulled apart. The color of the whole roll of good tape is not much different from the color of the strip after being pulled apart. The reason: good tape has strong shielding properties, and there is no color superposition. For example: Looking at the surface of the tape, there will be bubbles or very few bubbles when the tape has just been stripped into finished products, and the bubbles will basically dissipate when placed, and the surface of the tape is flat without any white spots. The tape mixed with impurities has irregularly distributed white spots, which are completely different from the effect of air bubbles if they cannot be dispersed by hand pressure.
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