Is there a way to enhance the stickiness of matte silver PET thermal label paper?

Enhancing the stickiness of matte silver PET thermal label paper can be started from many aspects. Here are some suggested ways to do it:

1. Optimize label surface treatment

Corona treatment: Improve the surface energy of PET self-adhesive material by corona discharge, so that it is easier to be wet by glue, thereby improving viscosity. However, it should be noted that after ordinary corona treatment, the hardness of the ink layer on the surface may be unstable, and the effect may decay rapidly.

Chemical treatment: chemical methods such as oxidation and fluoridation are used to change the surface physical properties of PET materials and increase the binding force with the glue.

Surface coating: Coating a special coating on the surface of PET material, such as silicone coating, polymer coating, etc., these coatings can change the surface wetting characteristics of PET material and improve the firmness and viscosity of the ink layer.

2. Use high-performance glue or adhesive

Special adhesives: For the characteristics of PET materials, research and development or selection of special adhesives that can form hydrogen bonds or other strong interactions with PET surface functional groups, such as epoxy resins, acrylates, polyurethanes, etc.

Double-sided tape: Use double-sided tape for PET material on one side and universal adhesive on the other side to improve the reliability and stability of bonding.

3. Improve the coating process

Optimization of coating parameters: reasonable selection of coating process parameters, such as coating speed, coating amount, etc., to ensure that the glue or coating is evenly and stably coated on the surface of PET material, thereby improving viscosity.

Add surfactants: Add an appropriate amount of surfactants during the coating process to reduce the surface tension of the coating solution, so that the glue is easier to wet the surface of the PET material and improve the adhesive force. However, attention should be paid to controlling the addition amount to avoid excessive increase in viscosity and affect coating uniformity.

4. Consider the environment

Temperature and humidity: Ensure that the temperature and humidity of the label in the environment are appropriate to prevent glue failure or adhesive degradation due to extreme conditions.

Clean the surface: Ensure that the surface of the adhesive is clean and free of oil or impurities before use to improve the adhesion effect of the label paper.

5. Other precautions

Storage conditions: Properly store the label paper, avoid long-term exposure to sunlight or damp environment, to prevent deterioration or viscosity reduction.

Test and verification: Conduct sufficient test and verification before the actual application to ensure that the stickiness of the label paper meets the requirements of use.

In summary, enhancing the stickiness of matte silver PET thermal label paper needs to be comprehensively considered and implemented from many aspects. By optimizing the surface treatment, selecting high-performance glue or adhesive, improving the coating process, and considering the use of environment and other measures, the adhesive stability and reliability of the label paper can be effectively improved.