Benzene-free eco-friendly printing ink and preparation method thereof

Abstract

The invention discloses a benzene-free environment-friendly printing ink, which comprises the following raw materials in parts by weight: 5-15 parts of environment-friendly acrylic resin, 30-40 parts of halogen-free vinyl resin, 10-15 parts of titanium dioxide, and 4-8 parts of filler , 2-6 parts of food additives, 25-35 parts of n-propyl acetate, 1-5 parts of energy stone, 1-5 parts of magnetite, 2-6 parts of hydrotalcite. The preparation method includes the following steps: (1) pulverizing for use; (2) putting the halogen-free vinyl resin into the material barrel, adding n-propyl acetate according to 20% of the formula, and then performing dispersion and stirring; (3) stirring and dispersing; ( 4) Grind the dispersed material; (5) Add additives and the remaining 10% n-propyl acetate to the material for dispersion, stirring and grinding; (6) Add the environmentally friendly acrylic resin and stir to disperse evenly. The printing ink obtained by the invention has fast drying speed, good adhesion and excellent heat resistance, no harmful organic volatiles in the ink, no peculiar smell in printed matter, no harmful residue, and can meet environmental protection requirements.

Description

technical field [0001] The invention relates to a printing ink and a preparation method thereof, in particular to a benzene-free and environment-friendly printing ink and a preparation method thereof. Background technique [0002] Printing is a technology that transfers the ink to the surface of paper, fabric, leather and other materials through plate making, ink application, and pressurization of original manuscripts such as text, pictures, and photos, and reproduces the contents of the original manuscripts in batches. 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. [0003] Ink is a substance used to form graphic information in the printing process, which directly determines the tone, color, and clarity of the image on the printed matter, so it plays a...

AI Technical Summary

Problems solved by technology

However, the drying speed of some existing printing inks is too slow, which often causes the backside to be smeared and stuck to the page during printing.

And the ink contains harmful organic volatiles, heavy odor, and harmful residues, does not meet environmental protection requirements, is not suitable for printing with high-speed printing machines (printing speed 300m-400m / min), and the printing efficiency of medium and low-speed printing machines is low

There are also some printing inks with poor adhesion, which are prone to uneven printing and deinking, which seriously affect the printing quality.