Effective waste paper deinking agent

Abstract

The invention discloses an effective waste paper deinking agent. The effective waster paper deinking agent is composed of, by weight, 38%-45% of surfactant, 38%-45% of enzyme-coated microcapsules and 20%-30% of auxiliaries. The effective waste paper deinking agent is suitable for being used for conducting deinking treatment on waste corrugated paper, waste news paper, color offset printing news paper, waste book and magazine paper, waste office paper and laser and electrostatic printing paper; lipase and cellulase are prepared into microcapsules through an emulsifying method, the preparation process is simple, stability is high, the activity of enzyme can be kept for a long time by adding the microcapsules into the chemical deinking agent, the chemical deinking agent is rich in ingredients and scientific in matching, the lipase and the cellulase are released slowly after waste paper pulp is added, deinking can be conducted through a chemical method and a biological method, the deinking effect on waste paper is good, whiteness is high, speckiness is low, the fiber is soft, reusability is high, the pollution degree caused by sewage generated in the later period is low, processing is simple, the cost is saved, and pollution to the environment is avoided.

Description

technical field [0001] The invention mainly relates to a high-efficiency waste paper deinking agent, which belongs to the technical field of papermaking. Background technique [0002] With the enhancement of people's awareness of environmental protection and the tightening of social resources, the reuse of waste paper has received unprecedented attention, and various waste paper recycling technologies have emerged one after another. Among them, the use of waste paper to produce high-quality household production paper has always been the development direction of waste paper utilization technology. In the process of producing high-quality paper pulp from waste paper, necessary or sufficient deinking of waste paper is a key link in the process of waste paper pulping. [0003] Various existing deinking agents have different product performance due to different waste paper raw materials or their own production technology level and other factors, the removal efficiency of ink is ...

AI Technical Summary

Problems solved by technology

[0003] The existing various deinking agents have different product performance due to different waste paper raw materials or their own production technology level, and the removal efficiency of ink is generally low, or some deinking agents are in production. Too much talcum powder and other inorganic fillers are added in the process, resulting in too high ash content of waste paper pulp after deinking treatment, which is not conducive to further bleaching treatment, or is not conducive to the improvement of pulp grade

At the same time, due to the continuous improvement of the quality of printing inks, many existing waste paper deinking agents can no longer meet the requirements of the existing waste paper deinking technology.