Printing ink of safe woven bag and preparation method thereof

Abstract

The invention relates to the field of plastic woven bags and particularly relates to printing ink of a safe woven bag and a preparation method thereof. The printing ink is prepared from the following raw materials: 68-72 parts of water-soluble acrylic resin, 20-24 parts of diluent, 4-6 parts of polystyrene, 10-15 parts of polyacrylonitrile, 5-10 parts of polybutylene terephthalate, 3-5 parts of polyglycollide, 0.5-1.5 parts of antifoaming agent and 1-3 parts of water-based dispersant. The method for preparing the printing ink of the safe woven bag comprises the following steps: adding the raw materials into a stirring kettle respectively; controlling the speed to 3000-4000r / min; stirring at a high speed for 60-80min; and taking out the product to obtain the printing ink. In the invention, the comprehensive printing cost is low; and by adopting water or ethanol to replace a diluting solvent, the printing ink is nontoxic and harmless and does not lose color or fade, meets the needs for sanitary safety of food packaging and has excellent environmental friendliness.

Description

technical field [0001] The invention relates to the field of plastic woven bags, in particular to a printing ink for a safety woven bag and a preparation method thereof. Background technique [0002] The printing process of the woven bag is mainly to use the printing machine to print the composite roll cloth according to the user's layout mark, ink color, color registration, roll printing and rewinding; but the two-in-one composite bag has a smooth surface film and printing ink fastness It is difficult to solve. At present, the printing process in the industry uses oil-based inks. Oil-based inks are composed of pigments, linking materials, and solvents. Linking materials and organic solvents can dissolve many natural and synthetic resins. The content of VOC (volatile organic compounds) in the solvent is relatively high. many. After volatilization, it will cause air pollution, and it will be inhaled by the human body into the trachea, bronchi, lungs or transmitted to other o...

AI Technical Summary

Problems solved by technology

Even if the benzene alcohol-free ink with little harm is used, it is still not environmentally friendly because of the pungent odor, high corrosiveness, flammability and explosion hazards, and serious pollution of the working environment due to the addition of diluents; therefore, it is very important to develop an environmentally friendly water-based ink