Alcohol-soluble plastic gravure table printing ink

Abstract

The invention relates to alcohol-soluble plastic gravure table printing ink which is prepared by mixing the following components in percentage by weight: 30-45% of n-propyl acetate, 10-30% of isopropyl alcohol, 20-28% of polyamide resin, 5-15% of nitrocotton, 0.5-2% of 3620 wax powder, 1-5% of polyketone resin and 8-35% of pigment filler. The alcohol-soluble plastic gravure table printing ink provided by the invention has the advantages of no toxic or harmful solvents toluene and xylene, food safety promotion and greenness and environmental friendliness.

Description

technical field [0001] The invention relates to the technical field of printing inks, in particular to an alcohol-soluble plastic gravure surface printing ink. Background technique [0002] The traditional plastic surface printing ink uses toluene and xylene as the main solvent, and isopropanol as the auxiliary solvent or co-solvent. The advantages of this ink are low price, fast volatilization speed, good printing adaptability, excellent adhesion fastness, etc., deep Favored by the color printing industry, the disadvantage is that the solvent residue is large, especially the benzene content exceeds the standard. For environmental protection and safety, the United States and many European countries have formulated strict environmental protection regulations for inks, adhesives and even film materials used in the field of food packaging. Constrained by hygienic standards, the existence of benzene solvents is listed as strictly prohibited. However, my country's current food pack...

AI Technical Summary

Problems solved by technology

[0002] The traditional plastic surface printing ink uses toluene and xylene as the main solvent, and isopropanol as the auxiliary solvent or co-solvent. The advantages of this ink are low price, fast volatilization speed, good printing adaptability, excellent adhesion fastness, etc., deep Favored by the color printing industry, the disadvantage is that the solvent residue is large, especially the benzene content exceeds the standard. For environmental protection and safety, the United States and many European countries have formulated strict environmental protection regulations for inks, adhesives and even film materials used in the field of food packaging. Constrained by hygienic standards, the existence of benzene solvents is listed as strictly prohibited. However, my country's current food packaging standard GB10004 stipulates that the solvent residue is ≤10㎎ / ㎡, and GB10005 stipulates that the benzene residue is ≤3㎎ / ㎡, especially According to the relevant provisions of the "Food Safety Law" that came into effect on June 1, 2009, strict supervision has been carried out on food packaging. In view of the current imperfection of water-based inks, a suitable environmentally friendly solvent should be selected to replace toluene and xylene. imperative