Light fast pink chromogen pigment red for a solvent-based ink material, and preparation method thereof

Abstract

The invention relates to light fast pink chromogen pigment red for a solvent-based ink material, wherein the light fast pink chromogen pigment red comprises the following components in parts by weight: 15-22 parts of alkaline red, 1-5 parts of glacial acetic acid, 1-6 parts of disodium hydrogen phosphate, 11-17 parts of sodium tungstate, 18-24 parts of sodium molybdate, 2-5 parts of a pigment aid,25-35 parts of hydrochloric acid, 2-6 parts of rosin and 2-5 parts of liquid caustic soda, wherein the pigment aid comprises the following components in parts by weight: 2-6 parts of 3-(1-methylethyl)-1H-1,2,4-triazole-5-amine, 1-3 parts of hyperbranched polyethyleneimine, 2-6 parts of hyperbranched polyglycidyl ether, 3-6 parts of oxibetaine, 2-7 parts of ethylenediamine tetraacetic acid disodium salt, 3-5 parts of diazolidinyl urea, 55-65 parts of water, 1-2 parts of a dispersant, 1-3 parts of an emulsifier, and 12-18 parts of a cosolvent. The invention further discloses a preparation method of the light fast pink chromogen pigment red. The light fast pink chromogen pigment red of the invention is low in red viscosity, good in storage and transportation stability, good in dispersity, high in tinting strength, high in light fastness, weather fastness and solvent resistance, and bright in color and luster.

Description

technical field [0001] The invention relates to the technical field of pigments, in particular to a light-fast pink original pigment red for solvent-based ink and a preparation method thereof. Background technique [0002] Printing is a technology that transfers the ink to the surface of paper, fabric, plastic, leather and other materials through plate making, ink application, and pressurization to copy the contents of the original manuscript in batches. Printing is the process of transferring the approved printing plate to the substrate through printing machinery and special ink. Ink is an important material for printing. It expresses patterns and characters on the substrate by printing or inkjet painting. The ink includes main components and auxiliary components, which are uniformly mixed and rolled repeatedly to form a viscous colloidal fluid, which is composed of linking materials, pigments, fillers, additives and solvents, etc. It is used in books, periodicals, packagi...

AI Technical Summary

Problems solved by technology

In the ink, in addition to the requirement of low viscosity (high viscosity will easily cause agglomeration during storage and affect the use), the pigment also needs to ensure good stability, and the current pigment red still has deficiencies in these aspects Or in other words, it is not possible to achieve the goal of balancing

[0004] The Chinese invention patent with the application number CN201610959477.1 proposes "a dispersible pigment red for food packaging and its preparation method". The dispersible pigment red is prepared by rationally controlling the ratio of occasional reactions to solve the problem that the pigment red cannot achieve bright luster and coloring power. high and good dispersibility, but the pigment red obtained by this method has high viscosity and poor dispersion stability, which is not suitable for solvent-based inks. In addition, this type of pigment red also has poor light fastness. question