Formula and processing technology for spot color ink

Abstract

The invention provides a formula and a processing technology for spot color ink. According to the invention, sludge, hydroxylamine powder and selenium powder are added into the spot color ink formulaaccording to a mass ratio of 2: 1: 1. The design in the invention is reasonable; the sludge, the hydroxylamine powder and the selenium powder are added into the formula for the spot color ink; and a metal-selenium complex can be produced when selenium reacts with heavy metal, hydroxylamine has high reducibility, is coordinated with charged metal ions in the metal-selenium complex, is dissolved inthe sludge and forms a large precipitate insoluble in water, so the purpose of removing heavy metal in the ink can be effectively achieved.

Description

technical field [0001] The invention mainly relates to the technical field of ink processing, in particular to a formula of spot color ink and its processing technology. Background technique [0002] Spot color ink refers to a pre-mixed specific color ink, such as fluorescent yellow, pearl blue, metallic gold and silver ink, etc. It is not made by mixing CMYK four colors, and color registration means accurate color. In all ink components, there will be some heavy metals with excessive content, which is very harmful to the human body. Although in recent years, some new environmentally friendly inks have been introduced, although they are composed of non-heavy metal ingredients and advocate environmental protection. However, due to the lack of additive materials rich in heavy metals, the performance of inks will deteriorate, such as color durability, color intensity, volatility, etc. Therefore, it is necessary to develop a new spot color ink The formula and its processing met...

AI Technical Summary

Problems solved by technology

In all ink components, there will be some heavy metals with excessive content, which is very harmful to the human body. Although in recent years, some new environmentally friendly inks have been introduced, although they are composed of non-heavy metal ingredients and advocate environmental protection. However, due to the lack of additive materials rich in heavy metals, the performance of inks will deteriorate, such as color durability, color intensity, volatility, etc. Therefore, it is necessary to develop a new spot color ink Formula and its processing method, in order to meet the requirements, and reduce the harm caused by heavy metal residues to the human body under the premise of adding adjuvants rich in heavy metals to preserve the characteristics of the ink