How can we dry in a line dryer without getting haze?

You may avoid the hazy effect with following countermeasures:

1. Lower the temperature of the line dryer. (lower than 80°C)

2. If the line dryer has several drying sections, set the temperature at the entrance section as low as 40-60°C and evaporate the solvent as much as possible (preferably 80-90%).

3. Then the printed matter can be dried at 80-100°C and evaporate the solvent completely. This should result in a good mirror effect.