Alcohol-free condensation fountain solution containing colloid silica prepared by magnetic activated water and preparation method thereof

Abstract

The invention relates to a fountain solution for offset printing, and particularly to an alcohol-free condensation fountain solution containing colloid silica prepared by magnetic activated water and a preparation method thereof. The fountain solution is prepared by the following raw materials, by weight, 6 to 8 parts of glycerin, 0.5 to 0.8 part of dispersant MF, 2 to 3 parts of polyvinylpyrrolidone, 30 to 40 parts of magnetic activated water, a proper amount of acidic buffer, 2 to 3 parts of sodium alginate, 1 to 3 parts of sodium chloride, 2 to 3 parts of colloid silica, 3 to 4 parts of dipotassium hydrogen phosphate, and 1 to 2 parts of fatty alcohol polyoxyethylene ether. The magnetic micromolecule water is used as a solution of the fountain solution, the fountain solution can quickly spread to form a film, the dispersed colloid silica can further speed up adsorption and spread of a hydrophilic film on a printing surface, the wetting effect is improved, and the printing surface can be protected. The fountain solution does not contain volatile alcohols or other harmful substances, is more environmental friendly and safe. The fountain solution can make water and ink balance quickly, no ink accumulates, the printing quality and the printing speed can raised, the condensation fountain solution also is easy to store, hardly go bad, and the condensation fountain solution can be diluted into needed concentration when used.

Description

technical field [0001] The invention relates to a fountain solution for offset printing, in particular to an alcohol-free concentrated fountain solution containing colloidal silicon dioxide prepared by magnetically activated water and a preparation method thereof. Background technique [0002] Offset printing technology mainly uses the principle of incompatibility of oil and water. When printing, keep the graphic part with ink and no water, and the blank part with water and no ink. It is particularly important to maintain a stable water-oil balance during the printing process. Surveys show that during the printing process The quality of water is directly related to the speed and efficiency of printing. The so-called water refers to the fountain solution, so the correct control and use of the fountain solution is an important part of printing quality control. [0003] With the gradual progress of printing technology, the development of fountain solution has gradually experien...

AI Technical Summary

Problems solved by technology

[0003] With the gradual progress of printing technology, the development of fountain solution has gradually experienced three development stages: common fountain solution, alcohol fountain solution and non-ionic surfactant fountain solution. Alcohol fountain solution is also controversial due to environmental protection issues. Non-ionic surfactant fountain solution has better performance, but its popularity is narrow. Most of the commercially available fountain solutions are alcohol-based fountain solutions. Therefore, the development of an alcohol-free dampening solution is more in line with environmental protection requirements. In order to develop a new type of dampening solution, it is necessary to start with the composition of the dampening solution and change the performance of traditional components, thereby preparing a class of high-efficiency, high-quality, and environmentally friendly. New alcohol-free fountain solution