Flexible impact Print Quality of many factors, especially water-based ink drying problems printing market. Frequently encountered in the production process with the slow drying ink drying phenomena, we need to adjust the printing tools. Flexible water-based ink in the printing process, drying rate should be moderate, such as slow drying, the drying process to be quick, this causes a conflict of printing equipment Consumables . So, press on the ink drying device performance and ability to determine the production speed printing presses. Conversely, high speed printing ink in the air can shorten the exposure time, after India slowly dry printing tools.


Water-based ink drying too slow, poor drying will result in print, ink stick to the guide roller on paper, print dull, but also affect the trapping effect, resulting in print quality equipment supplies. Transfer of water-based ink drying too fast will be bad, could easily lead to blocking version, imprinted edges appear jagged, ink dry and to the printing plate printing market. If water-based ink drying too fast, cable in the print version, will also create a printed surface scratches, because the ink in the printing process has not penetrate the surface of the printing material had dried, resulting in ink printing materials suspended in the surface of a friction off supplies on the market.


Flexo water-based ink for use with the following suggestions:
1. Appropriately raise the pH value to reduce the ink printing process, drying rate, drying rate without affecting the printing tools. pH value of 8.5 ~ 9.5 in the general control printing tools. Drying too fast, by adding stabilizers to control the pH value of more than 9 but not more than 9.5, otherwise the ink will change the nature of the printing union. Lower the surface tension of ink, cable version easier to block version and dry in central China will become slower.


2. Without affecting the printing speed as far as to ink drying in the printing process a bit slow printing tools. This can be adjusted plus slow drying agent in central China. Different manufacturers of ink required to join the slow drying of different dosage, generally not more than 5% printing union. Added after the ink will slowly dry thickening agent, pH, reduce the printing tools. Therefore, while adding slow drying agent to join the water and stabilizing agent to control ink viscosity and pH value of central printing.


3. When printed tissue paper products and reduce ink drying speed can reduce the degree of warping of paper printing tools. This usually takes to join slow drying agent or antagonist to regulate the central printing. The reason is, because after the water-based ink in the printing ink in the water and alcohol evaporation, so the middle of the paper on both sides of loose and tight warps print Union. Increase the role of slow drying agent, so that ink can not dry instantly, reducing the warp printing.


4. Enhance the air convection oven speed, can significantly speed up the drying speed of the printing tool print. Due to water-based ink contains a lot of water and alcohols, enhance the convection oven can reduce the relative humidity, speed up the evaporation of solvent printing tools.


5. Join the slow drying agent can solve the print version of the surface abrasion and varnish sticky dirty Equipment Supplies. Ink drying too fast can cause ink penetration into the stage not to dry the printing material surface, resulting in insufficient adhesion, ink easy to fall off or the glazing in the trapping, the later one color plate will stick out before the same color of ink on This can also change the order or reduce the viscosity of ink color adjustment printing technology.


6. Join the slow drying agent and the speed can reduce the blocking version of the phenomenon of the printing market. Too slow to make ink in the printing plate on the proliferation, adhesion caused by network, but the ink makes the ink drying too fast will not be fully transferred, resulting in ink outlets around the product, resulting in the phenomenon of the central block print version.


7. Guide rolls fever, can also speed up the drying speed of the printing tool print. When we used in the printing ink products, large drying capacity if the press is limited, when the speed of each machine to open the just-slow, over time there is some room to improve the speed, this is the reason heat wrap rolls central China. After the ink roll hot wrap is not easy to stick to its surface before the start, independent of drying equipment in advance to open, just getting on the machine first suction device can be switched off, this could make equipment in the shortest possible time the largest accumulation of heat Central printing speed can be improved rapidly.


8. We use the ink in printing a large amount of it, try to use the high color density of ink, the higher the number line Anilox roller This is conducive to drying printed matter, you can also reduce the waterlines phenomenon in central China.


9. The higher the speed required for the printing ink viscosity to be lower, which is conducive to the transfer of printing ink alliance.

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