Rescue "Cracking of Screen Printing Products from Shanghai to Iran"

After screen printing, the cracking of the ink layer on the substrate surface is mainly caused by the action of solvent and the great temperature change. Weak solvents such as general alcohols and petroleum solvents will also crack in styrene products, and some substrates will also crack due to their own factors. In order to prevent the occurrence of cracks, the properties of ink and the solvent resistance of substrate should be considered when selecting solvents. Materials with strong solvent resistance and oil resistance can be selected as the base material. Pay attention to keep the temperature balance in the workshop. In multi-color overprinter, each color should be fully dried after printing, and the drying temperature should be strictly controlled. Generally speaking, by paying attention to the above aspects, the ink layer cracking phenomenon can be effectively controlled.

According to what you said, there is no problem with domestic products. It should be that domestic products have not been shipped by sea for a long time. The goods you shipped to Iran were shipped by sea. What I know is that when the container is at sea, the temperature is usually kept at 80 degrees, plus the evaporation of seawater and humid acidic air.

It should be unrealistic to find a shipping company, because they have no negligence.