Microcapsules for carbon-free paper coating achieved through deinked pulp carbon-free raw paper and production technology of microcapsules

Abstract

The invention discloses microcapsules for carbon-free paper coating achieved through deinked pulp carbon-free raw paper and a production technology of the microcapsules. The microcapsules are prepared from wall materials, color oil and emulsifying raw materials, wherein the wall materials comprise 110-120 parts of formaldehyde, 35-55 parts of alcohol and 30-50 parts of melamine, the color oil comprises 250-350 parts of solvent oil and 12-22 parts of crystal violet lactone, and the emulsifying raw materials comprise 80-90 parts of an emulsifying agent, 18-30 parts of urea, 1-2 parts of glacial acetic acid and 20-30 parts of alcohol. According to the microcapsules, the microcapsules are blue and white emulsion, the solid content is 40%, the pH value is 8.5, the viscosity is lower than or equal to 100 mpa.s, and the microcapsules can be dispersed in water in any proportion and develop blue or black; a series of technical problems that the finished carbon-free paper is poor in development effect and nonuniform in paper surface coating in the production process that the carbon-free paper is obtained through coating of the deinked pulp papermaking carbon-free raw paper and carbon runs off in the paper cutting and printing process are solved, and compared with originally-used domestic coating microcapsules, the cost per ton is reduced by 2,100 yuan.

Description

technical field [0001] The invention belongs to the field of papermaking processing, and in particular relates to a microcapsule suitable for deinking pulp carbon-free base paper coated carbon-free paper and a production process thereof. Background technique [0002] With the continuous depletion of international and domestic papermaking raw materials - forest resources, in order to maintain the ecological environment and forest resources to the maximum extent, the pulp and papermaking industry has taken the recycling of secondary fibers as the main source of raw materials for papermaking, using plant fibers to make pulp, Papermaking enterprises are gradually shifting to use waste paper for deinking pulping, making cultural paper and specialty paper (carbon-free base paper). However, the carbon-free base paper made of deinking pulp has poor color rendering effect of the finished carbon-free paper, uneven coating on the paper surface, and carbon-running during the paper cutti...

AI Technical Summary

Problems solved by technology

[0003] Based on this, the present invention provides a microcapsule suitable for coating carbonless paper with deinking pulp carbonless base paper and its production process, which solves the problem of finished carbonless paper that occurs when deinking pulp carbonless base paper is produced and coated with carbonless paper Problems such as poor color rendering and uneven coating on the paper surface