How to improve the weather resistance of BOPP synthetic paper labels?

To improve the weather resistance of BOPP synthetic paper labels, you can start from many aspects, the following are some effective methods:

1. Choose high quality raw materials

Substrate selection: Select high-quality BOPP film as the substrate to ensure that it has good physical properties and chemical stability.

Additives: In the production process of synthetic paper, an appropriate amount of weather enhancer can be added, such as anti-ultraviolet agents, antioxidants, etc., to improve the weather resistance of synthetic paper.

2. Surface treatment technology

Corona treatment: Corona treatment of the surface of BOPP synthetic paper can increase its surface energy, improve the adhesion of ink or adhesive, and also help to improve weather resistance. Corona treatment through high frequency and high voltage discharge, the BOPP film surface formed polar functional groups, thereby enhancing the binding force with the ink or adhesive.

Coating treatment: The surface of the BOPP synthetic paper is coated with a special weatherproof coating, which can isolate the erosion of the external environmental factors on the label and extend its service life.

3. Optimize the printing process

Choose the right ink: Use good weather resistance ink for printing, such as UV curing ink, the ink layer formed after curing has high hardness and wear resistance, and can resist the erosion of the external environment.

Control printing parameters: reasonably adjust the temperature, pressure and speed of the printing press to ensure that the ink can be evenly and firmly attached to the surface of the BOPP synthetic paper, thereby improving the weatherability of the label.

4. Storage and transportation precautions

Avoid prolonged exposure to sunlight: UV rays in sunlight can cause damage to BOPP synthetic paper, so prolonged exposure to sunlight should be avoided during storage and transportation.

Maintain the appropriate temperature and humidity: too high or too low temperature and humidity may affect the performance of BOPP synthetic paper, so it should be stored in an environment with appropriate temperature and humidity.

Avoid mechanical damage: During handling and storage, care should be taken to avoid mechanical damage, such as scratches, tears, etc., which will reduce the weatherability of the label.

5. Other auxiliary measures

The use of protective film: The surface of the BOPP synthetic paper label is covered with a protective film, which can isolate the direct contact with external environmental factors and further improve the weather resistance.

Regular testing: Regular testing of the stored BOPP synthetic paper labels, timely detection and treatment of possible problems, to ensure that they maintain good performance during use.

To sum up, improving the weather resistance of BOPP synthetic paper labels needs to start from many aspects, including the selection of high-quality raw materials, the use of appropriate surface treatment technology, optimizing the printing process, paying attention to storage and transportation conditions, and taking other auxiliary measures. The comprehensive application of these measures will help to improve the weather resistance of BOPP synthetic paper labels and extend their service life.