Preparation method of environmental-friendly type pressure-sensitive oil for carbonless copying paper

Abstract

The invention discloses a preparation method of environmental-friendly type pressure-sensitive oil for carbonless copying paper. The preparation method comprises the following steps: 1) pretreatment: compounding and heating solvent oil, and stirring uniformly; 2) dissolution: heating and dissolving colorless dye and the solvent oil to obtain a color forming agent; 3) pre-emulsification: adding and mixing an emulsifying agent, a wall material and deionized water into the color forming agent in the step 2) to obtain emulsified liquid; 4) emulsification: shearing and emulsifying at a high speed to the particle diameter needed by capsules, so as obtain emulsified liquid; 5) curing: carrying out curing on the emulsified liquid in the step 4) to form microcapsules; 6) hardening: carrying out water-bath insulation on the microcapsules in the step 5); 7) oil formation: adding an adhesive and an isolating agent into the microcapsules in the step 6) to obtain the pressure-sensitive oil. The environmental-friendly type pressure-sensitive oil for the carbonless copying paper, prepared by the preparation method, is non-toxic and non-irritating, is good in safety and wide in application range and is environmental-friendly and pollution-free.

Description

technical field [0001] The invention relates to a preparation method of carbon paper pressure-sensitive oil, in particular to an environment-friendly preparation method of carbon-free carbon paper pressure-sensitive oil. Background technique [0002] Carbon-free copy paper is mainly used for multi-part forms, bills, continuous financial notes, general business financial notes, etc. It has been widely used in people's work and life. The principle is to make the force-sensitive pigment in the microcapsules And the oil solution overflows, and after contacting with the color developer, a dyeing reaction occurs, thus playing the role of copying. [0003] With the continuous development of carbonless copy paper technology, people have higher and higher requirements for carbonless paper pressure-sensitive oil, not only require better performance, but also have requirements in terms of environmental protection, especially in Japan, Europe and the United States and other markets, peo...

AI Technical Summary

Problems solved by technology

[0004] 1. It has a stimulating effect, damages the heart, liver and kidney, has certain toxicity to the nervous system and digestive system, is not conducive to human health, and does not meet the national requirements for environmental protection;

[0005] 2. It is harmful to the environment and can cause pollution to the atmosphere;

[0006] 3. The emission of VOCs (>100mg / g) is large, and the cost of environmental protection is high;

[0007] 4. Low flash point, there is a danger of burning when heated

Images