A Brief Analysis of the Ink Concentration Control of Ink (Part 2)

However, there are also disputes over temperature control. If you consider all the plumbing and energy losses on each ink reservoir, the cost of this control method is obviously not cheap, and it is not very practical for the packaging and printing industry. At the corrugated cardboard printing exhibition held in Paris in June 1994, people also considered viscosity control and color depth control as one of the most important factors related to the production of high-quality prints. At the same time, other factors such as:

1. Before printing, use a static web vacuum suction system to clean the web or sheet.

2, in addition to color concentration control, but also to control the pH value.

3. Prepare the ink in the ink shop. By effectively using time, labor and materials, you can save money.

In flexo printing and gravure printing, the ink color density control device can be effectively used for solvent inks, water-based inks, coating oils, waxes, and the like. Using the ink concentration automatic control device can save a lot of time, labor and materials, because the increase of one second time or temperature change with the flow cup measurement will increase the loss of ink pigments. If the automatic viscosity control device is used together with a temperature compensation or temperature control device, the consumption of ink, solvent and other materials can be reduced while maintaining the stability of the product quality. Which automatic control device to use, we should consider the following factors:

1. Monitor temperature changes and adjust viscosity accordingly. In this way, the actual viscosity control device becomes the color depth control device. The control device can be a combination of ink cooler/heater to maintain the exact same temperature, especially in very hot environments (eg above 95°F);

2, can accurately measure the viscosity;

3, operation has nothing to do with the amount of ink on the ink fountain;

4. Use a sealed circuit to prevent solvent evaporation;

5, can quickly and easily swap the ink on the printing unit;

6. No ink deposit on the control device;

7, operating environment security;

8, requires little or no maintenance;

9, at the end of printing will automatically clean the device itself;

10, easy to operate, not easy to malfunction;

11, can be used with the pH control device.

There are still more advanced systems on the market that are controlled by electronic computers. They not only control the color density of the ink, but also control the pH (for aqueous inks), while also providing ink on the screen or on paper. The subtle changes and the various steps that the system maintains the ink color concentration at an optimal level. Using automatic ink color density control and temperature-compensated viscosity control, consistent print quality can be achieved, ink savings, waste reduction, time savings and improved production. Therefore, in order to achieve the above-mentioned goal, the printing factory should implement the control of the ink color concentration, and the best way is to install a proper automatic ink color concentration control system or a viscosity control device of the ink temperature adjustment system.