How to Solve the Anti-Stick Problem?

During pre-press design, try to avoid ink accumulation and bulging caused by layout design, avoid excessively thick mesh lines, large-area deep mesh multi-color overprinting and other matters that are prone to back-adhesion.

1. During pre-press design, try to avoid ink accumulation and bulging caused by layout design, avoid excessively thick mesh lines, large-area deep mesh multi-color overprinting and other matters that are prone to back-adhesion. Prepare the printing process in advance, such as product requirements, material structure, ink and solvent performance and requirements. Pay attention to the key control of gold, silver, pearlescent, transparent, reactive matte ink and other inks. Pay attention to the matching of the characteristics of the film material and the process.

2. Choose inks with good drying performance and film-forming performance. If there are excess printing color groups, add a cold air treatment after printing is completed to avoid residual heat in the film roll during rewinding. Pay attention to the stable control of ink viscosity during the production process.

3. Pay attention to the ratio of the solvent, and fully consider its solubility, evaporation speed, compatibility with the ink resin type, solvent release, etc.

4. The workshop adjusts the appropriate winding tension and winding taper according to different printing materials, and records relevant data. The pressure of the rewinding pressure roller must be small and just keep sticking to the film roll. When unloading the film roll, it is advisable to press it by hand to keep the softness and hardness moderate to avoid the occurrence of chrysanthemum cores or roll stringing.

5. Pay attention to the environmental changes in the workshop. The comfortable printing environment temperature is 25~30℃ and the humidity is 40%~65%. Make timely adjustments and responses based on the actual situation in the workshop.

6. Check whether the comprehensive drying performance of the printing equipment is in good condition, pay attention to the efficiency of the drying hot air and control the temperature of the cooling water roller. Ensure the flexibility and cleanliness of the rotation of each guide roller for feeding materials.

7. The printed film should be stored in a ventilated, dry and cool place to avoid exposure to sunlight and moisture. Note that the film roll should not be compressed during transportation and storage; if possible, it can be stored and transported by hanging.

8. Pay attention to process adjustments during high-temperature and high-humidity seasons, speed up process flow, and reduce printing film storage time.