Printing ink safekeeping common sense
Dec 14 2012 10:09:34 , 1002
1. New ink safekeeping conditions
Ink viscosity is decreased with temperature increasing, the temperature drop and viscosity increase. Some ink placed in 3 ℃ or 0 ℃ below environment will be solidified into jelly state, produce so-called gel phenomenon, if ink appeared "gel", usually need to warming beyond gel point 5-10 ℃ to restore to the original. Therefore, in the cold area, winter storage ink to special attention.
Winter storage ink, should be stored in a no fire, as far as possible some warm room, avoid stacked in outdoor, if produce gel phenomenon, please put in hot water to return to original state when we use. If still vestiges cannot fully involuted insolubles, will be printed in the mesh jams, layout blockage of the cause of the failure. In order to be on the safe side, with metal mesh filter before use can eliminate the fault.
2. New ink deposit during the period of adjustment to use
Even if is the new ink, long-term storage motionless, ink formula in various components sometimes happen separation and precipitation phenomenon, sometimes will make the container wall rust, caused by the failure of printing, in order to avoid these problems, must, in accordance with the Numbers of the tithes and sequence has to use.
3. Ink mixing use
As mentioned, the ink long-term storage, often make formula uniform mixed ingredients appear statified phenomenon, or precipitate. Therefore, when using, even if is the new ink has to be the ink barrel inverted uniformly shake, or a little stir before use.
4. About residual ink management
Due to the use of plastic gravure printing ink solvent is low boiling point solvent, therefore, printing process of volatile will make solvent mixture ratio imbalance, or due to solvent evaporation cooling when, the surface of ink or roller surface extreme cooling, so that the air
Moisture infiltration ink to.
In the printing process, the film pieces and electrostatic inhalation of dust into ink and other reasons, especially design area is small, the dosage is less ink are more likely to change. Residual ink often viscosity is low, happen fast separation precipitation. Therefore,
Reuse is must fully mixing, or use more than 1000 meshes of metal mesh filter, and the new ink mixed up in the digestive process.
If you continue to deposit, must be sealed and marked ink category, and attach tags, placed in the shade.