Durable alcohol-free concentrated fountain solution prepared through magnetic activated water and containing nanometer titania and preparing method of fountain solution

Abstract

The invention relates to a fountain solution for offset printing, in particular to a durable alcohol-free concentrated fountain solution prepared through magnetic activated water and containing nanometer titania and a preparing method of the fountain solution. The fountain solution is made of raw materials including, by weight, 5 parts to 8 parts of glycerol, 0.8 part to 1 part of a dispersing agent MF, 30 parts to 40 parts of magnetic activated water, 1 part to 2 parts of polyoxyethylene, 1 part to 2 parts of the nanometer titania, 3 parts to 5 parts of sodium dihydrogen phosphate, the proper amount of acidic buffer, 12 parts to 16 parts of acacia gum, 2 parts to 3 parts of fatty alcohol-polyoxyethylene ether and 2 parts to 3 parts of hydroxyethyl cellulose. Small molecule water subject to magnetic activation is adopted by the fountain solution to serve as a solvent, rapid spreading film forming can be more easily achieved on the layout, and wettability of the solution on the layout is improved; the dispersed nanometer titania in the solution can improve dispersion of the water film and ink, excessive emulsion of the ink is avoided, the printing speed is improved, durability of the layout is improved, in addition, the solution does not contain alcohol or other harmful substances easy to volatile, the solution is more environment-friendly and safer, and during use, the concentrated solution is diluted to the needed concentration.

Description

technical field [0001] The invention relates to a fountain solution for offset printing, in particular to a durable alcohol-free concentrated fountain solution containing nano-titanium 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 exper...

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