A kind of aqueous silver ink and preparation method thereof

Abstract

The invention discloses a water-based silver ink and a preparation method thereof, belonging to the technical field of polymer composition and its preparation. The water-based silver ink includes the following components in parts by mass: 10-30 parts of silver paste, 30-50 parts of water-based binder, 0.5-5 parts of anti-wear agent, 0.2-2 parts of wetting agent, defoamer 0.2-1 part, 10-20 parts alcohol, 10-20 parts water. The water-based silver ink uses water as a solvent, there is no VOC emission during production and use, there are few harmful substances on the surface of the printed matter, the operating environment is safe, the health of production personnel is guaranteed, and the production cost is low; and through the water-based silver formula Adding antifoaming agent, wetting agent and anti-wear agent and other additives, effectively solve the problems of poor water wettability of silver paste, silver ink swelling, precipitation and agglomeration, and slow drying of deep plate printing.

Description

technical field [0001] The invention relates to the technical field of polymer composition and its preparation, in particular to a water-based silver ink and its preparation method. Background technique [0002] At present, the metal ink used in the printing industry mostly uses organic solvents, and there are many disadvantages: a. When using organic solvents, volatile organic solvents (i.e. VOC) are discharged in the production and use process, the operating environment is seriously polluted, and the safety is poor, and Serious threat to the health of production personnel; b. Metallic inks using organic solvents have many harmful substances on the surface of printed matter, which poses a great safety hazard; c. Metallic inks using organic solvents, due to the volatility of organic solvents, in order to ensure the safety of inks Viscosity stability requires the addition of a large amount of organic solvents, resulting in high production costs. [0003] Water-based silver i...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to propose a water-based silver ink and a preparation method thereof. Water is selected as a solvent, there is no VOC emission in the production and use process, there are few harmful substances on the surface of the printed matter, the operating environment is safe, and the production is guaranteed. Healthy personnel and low production costs; and by adding defoamers, wetting agents, wear-resistant agents and other additives into the water-based silver formula, it effectively solves the problem of poor water wettability of silver paste and silver ink swelling, precipitation and agglomeration Phenomenon, slow drying of deep plate printing, etc.