In the usual packaging and printing process, operators tend to ink quality problems, caused the failure of one kind or another. To this end, some problems, and puts forward his own humble opinion, in consultation with colleagues who are.

1, the composite ink in printing when there is no problem, but you have white phenomenon in compound aluminum plating film, covering power also greatly reduced at the same time, how to deal with the problem?

One right amount increase dosage of coloring materials in ink system, secondly the alcohol ether solvents was developed for the formula design or add flow ping agent. Its right amount increase antistatic dispersant or low viscosity of auxiliary resin will drag to move a point or when printed printing pressure heavier appropriately, also a convertible version of the hole deep print, in order to improve the ink film thickness and promote the ink moist flow flat. Reprint a this is the normal means of printer. Printing is particularly severe in the humid environment Heavy, we can adjust the humidity of printing workshop, appropriately during rainy season right amount add slowly to prevent dry solvents.

When 2, table printing ink printing ink, how to deal with?

Ink not on substrates, inks formula design is not reasonable, such as when several mixed solvent surface to form oil bead, suggesting that no intersolubility between solvent, or do not meet the solubility of dissolved in the ink system resin. The other is ink in the ink system thickening coarse or gel. Serious when printing ink heap on both ends of plate, transfer printing ink or insufficient heat transfer rate.

Processing method: one is in front of the ink production, as far as possible in accordance with the "two-dimensional ink method" to design the formula; The second is to minimize the thickening thixotropic agent; 3 it is to join help dissolve when printed solvent; Four is to avoid ink contact with water; Five is a new ink transfer.

What is 3 color, ink toner made of?

In short: resin + pigment by mixing, rolling mill or filtering. For color piece, the latter for the toner, producers can according to choose different pigment printing purposes, especially in color or toner resin system.

4, plastic gravure printing ink, especially white ink, how to avoid the yellowing and improve the whiteness?