Alcohol-free fountain solution distributing device and operating method thereof

Abstract

The invention discloses an alcohol-free fountain solution distributing device. The alcohol-free fountain solution distributing device comprises a water tank, a fountain solution barrel, a fountain solution supplementing and distributing barrel and a water supplementing barrel, wherein a first float switch is mounted in the water tank; the water tank is connected with the water supplementing barrel through a water outlet device; a second float switch and a third float switch are mounted in the water supplementing barrel; a first pipe is mounted outside the water supplementing barrel; the water supplementing barrel is connected with the fountain solution barrel through a second pipe; a first metering device is mounted on the second pipe; the water supplementing barrel is connected with the fountain solution supplementing and distributing barrel through a third pipe; and a second metering device is mounted on the third pipe. By the device and the method, different addition proportions of a fountain solution and supplementing solution of the fountain solution in water every time can be adjusted, the error of a metering pump is 1-2%, proportion stability of the fountain solution and the supplementing solution of the fountain solution in the water tank can be ensured, and on the basis of not using alcohol, printed products are high in latitude and small in dot gain, have rich gradation, and are bright in color.

Description

【Technical field】 [0001] The invention relates to the technical field of offset printing fountain solution, in particular to an alcohol-free fountain solution batching device and an operation method thereof. 【Background technique】 [0002] Offset printing is the main printing method today. In offset printing, the dampening solution takes over the role of the plate and the blank part is not polluted by ink. [0003] At present, the way of adding fountain solution used in the industry is: prepare fountain solution and fountain solution replenishing solution in advance, and then add them into water through the device. However, preparing the fountain solution and fountain solution replenishment solution in advance will cause the two solutions to react, so that the mixed solution will become invalid and the desired printing effect will not be obtained. [0004] In addition, the principle of immiscibility of water and ink is used in offset printing. A stable ratio of fountain sol...

AI Technical Summary

Problems solved by technology

However, preparing the fountain solution and the fountain solution replenishment solution in advance will cause the two solutions to react, so that the mixed solution will become invalid and the desired printing effect will not be obtained.

[0004] In addition, the principle of immiscibility of water and ink is used in offset printing. A stable ratio of fountain solution and alcohol is added to the water, but alcohol is volatile, harmful to people and the environment, and the cost is high. Alcohol

At present, all the materials in the market are used to change the formula of the fountain solution, but its adaptability is poor, and it cannot meet different machines and environments, and has different requirements for the fountain solution.

Images