Cleaning solution composition for fountain solution circulation system of printing machine

Abstract

The invention discloses a cleaning solution composition for a fountain solution circulation system of a printing machine, in particular relates to a composition of a cleaning solution A and a cleaningsolution B for the fountain solution circulation system of the printing machine. The cleaning solution for the fountain solution circulation system of the printing machine comprises an agent A and anagent B in terms of mass volume ratio; the agent A includes 10-20% of sodium metasilicate pentahydrate, 1-10% of sodium tripolyphosphate, 2-6% of sodium xylene sulfonate, 1-5% of a preservative and the balance of water; and the agent B includes 1-5% of an acid, 0.5-1.5% of sodium benzoate, 3-15% of a surfactant, 0.2-2% of a preservative, 0.1-1% of a bactericide and the balance of water. The composition can save water resources, effectively remove ink, paper scraps, mold or calcified substances deposited in the fountain solution circulation system of the printing machine, simplifies operationsteps, saves time, reduces the pH value of the fountain solution circulation system of the printing machine to a value suitable for a fountain solution, and effectively prevents the pH value of the fountain solution from shifting when the fountain solution is used subsequently.

Description

technical field [0001] The invention relates to a cleaning solution composition for a fountain solution circulation system of a printing machine, in particular to a composition of cleaning solutions A and B for the fountain solution circulation system of a printing machine. Background technique [0002] As a machine for printing text and images, a modern printing machine generally consists of mechanisms such as plate loading, ink application, embossing, and paper feeding. Printing presses are divided into letterpress, flatbed, gravure and orifice printing presses. The world's printing machinery has made great progress since the 1980s. Over the past 20 years, the development of printing machinery has gone through three stages: the first stage is from the early 1980s to the early 1990s, and this stage is the heyday of the development of offset printing technology. The maximum printing speed of the sheet-fed offset press during this period was 10,000 prints / hour. During this...

AI Technical Summary

Problems solved by technology

Due to the recycling of the fountain solution, the ingredients in ink, paper and some other chemicals will inevitably enter the circulation system, which will cause the accumulation of these mixed dirt (especially inside the pipeline) in the long run, resulting in the circulation of the fountain solution. (mainly the water tank) is turbid and the pipeline bacteria breed and emit peculiar smell, which seriously affects the printing quality

Using clean water to clean the circulation system cannot be cleaned thoroughly. The current conventional cleaning method can use alcohol, but it is difficult to clean the ink, paper dust, mold or calcification deposited in the printing circulation system, or you can also pour alkaline Cleaning agent for cleaning, but this cleaning method needs to waste a lot of water to rinse repeatedly in the cleaning process to remove the change of the pH value of the printing machine caused by the alkaline cleaning agent, but even so, it is still easy to appear when using the printing machine The PH value of the dampening solution shifts, which seriously affects the printing effect, and the phenomenon of printing and paper damage will also occur

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