Adhesion force promoter composition, preparation method and application thereof

Abstract

The application relates to an adhesion force promoter composition, a preparation method and an application thereof. Based on the total weight of the composition, the adhesion force promoter composition comprises 20%-60% of polyurethane resin, 5%-25% of organic chelate, 0.01%-1% of specific surfactant and 14%-74.5% of diluting agent. The adhesion force promoter composition of the application can be applied to the production of a safety line in three modes of primary coating before printing, interlaminar use and an auxiliary agent of printing ink, enhances the adhesion fastness of the special type forgery-prevention printing ink of the safety line effectively and improves the defects of flooding, floating and the like of the printing ink, thereby ensuring the stable production of the safetyline and enhancing the quality of the safety line.

Description

technical field [0001] The present application relates to an adhesion promoter composition, in particular to an adhesion promoter composition for safety thread production, its preparation method and its use. Background technique [0002] In the production process of the security line, it is often due to the quality problems of the substrate film itself (such as uneven surface, low surface tension, etc.), or the printing surface is polluted during the previous process (double-sided printing or multi-layer printing) , or the defect of the ink itself causes the ink to have insufficient adhesion fastness on the film substrate and is easy to fall off, which eventually leads to a decline in yield, unstable product quality, unsmooth production or even shutdown. [0003] Commonly used solutions include corona treatment, solvent cleaning, adding additives to the ink, etc., but these methods have shortcomings for large-scale production. For the corona treatment method, in terms of co...

AI Technical Summary

Problems solved by technology

For the corona treatment method, in terms of cost, corona equipment is added, and energy consumption is increased at the same time; in terms of safety, organic solvents are generally used in printing production, and the high-voltage discharge of corona may cause the combustion of the solvent, which brings great harm to production. In terms of production organization, corona treatment must be carried out online, and it must be printed immediately after treatment, which has higher requirements for production organization

For the solvent cleaning method, it is difficult to clean the surface of the substrate at the actual printing speed, resulting in low production efficiency and poor actual effect

For the method of adding additives to the ink, different additives need to be selected for different types of inks, and a large number of tests need to be carried out according to different inks. It is not universal, and it is easy to cause adverse effects on the stability of the ink system.