Durable alcohol-free concentration fountain solution prepared through magnetic activated water and containing nano titanium dioxide and preparing method of durable alcohol-free concentration fountain solution

Abstract

The invention relates to an offset printing fountain solution, in particular to a durable alcohol-free concentration fountain solution prepared through magnetic activated water and containing nano titanium dioxide and a preparing method of the durable alcohol-free concentration fountain solution. The fountain solution is prepared from the following raw materials including, by weight, 5-8 parts ofglycerin, 0.8-1 part of a dispersing agent MF, 30-40 parts of magnetic activated water, 1-2 parts of polyoxyethylene, 1-2 parts of the nano titanium dioxide, 3-5 parts of sodium dihydrogen phosphate,a proper amount of an acid buffer, 12-16 parts of acacia gum, 2-3 parts of fatty alcohol polyoxyethylene ether and 2-3 parts of hydroxyethyl cellulose. By means of the fountain solution, water obtained after magnetic activation is adopted as a solvent, a film can be rapidly spread and formed on a plate face more easily, and the wetting property is improved; and water film and printing ink dispersity can be improved through the dispersed nano titanium dioxide in the solution, excessive emulsion of the printing ink is avoided, the printing speed is increased, the durability of the plate face isimproved, in addition, volatile alcohol or other harmful substances are not contained in the solution, the solution is more environment-friendly and safer, and the concentrated solution is diluted tothe needed concentration during use.

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