Novel environment-friendly resinous varnish

Abstract

The invention discloses a novel environment-friendly resinous varnish, and relates to the technical field of varnish preparation. The novel environment-friendly resinous varnish is characterized by comprising the following components in percentage by weight: 5 to 15 percent of 2116 resin, 80 to 90 percent of soybean oil and 3 to 8 percent of cobalt. A preparation method of the novel environment-friendly resinous varnish comprises the following steps of: putting the 2116 resin and the soybean oil into a reaction kettle; when the temperature rises to 160+ / - 5 DEG C, keeping the temperature for half an hour; starting to add the cobalt slowly; and stirring uniformly and taking the mixture out of the kettle. The novel environment-friendly resinous varnish has the advantages of simple and feasible and safe preparation process, short production time and low cost. The varnish is light in color, clear and transparent, free from extraneous odor, and used for adjusting the fluidity of printing ink, has low influence on the viscosity of the printing ink with appreciated adding amount, also has no influence on the glossiness and the attachment fastness of the printing ink, and can be used for improving the aridity of the printing ink. The varnish has no component of petroleum-based mineral oil, the soybean oil replaces all petroleum-based solvents, the soybean oil has the characteristics of easy degradability, low toxicity and low volatile organic compounds (VOC) and the like, so the consumption of non-renewable resource, namely the mineral oil, in printing can be effectively reduced; and therefore, the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of varnish preparation, in particular to an environmentally friendly novel resin varnish. Background technique [0002] Ink is an important material for printing packaging materials. It expresses patterns and characters on the substrate through printing. The ink includes main components and auxiliary components. They are evenly mixed and rolled repeatedly to form a viscous colloidal fluid. It is composed of pigments, linking materials and additives. It is used for various printing of books, periodicals, packaging and decoration, architectural decoration, etc. With the increase of social demand, the variety and output of ink have also expanded and increased accordingly. [0003] For operators in the printing industry, if the ink has good printability, it can be put into use as soon as the can lid is opened, which is of course the most convenient and trouble-free. However, due to the inherent viscosity of t...

AI Technical Summary

Problems solved by technology

[0004] Although the currently used varnishes also play a positive role in improving the viscosity and fluidity of the ink, the fly in the ointment is that it contains a large amount of petroleum-based solvents