Waste paper deinking agent

Abstract

The invention relates to a waste paper deinking agent, which consists of surfactant, polyoxyethylene ether substance, penetrating agent, fatty acid sodium salt, caustic soda, sodium silicate, water and the like. All chemicals forming the waste paper deinking agent are common chemical products, and are easily purchased in a market. The components are innocuous and can be naturally degraded, namely the waste paper deinking agent meets the requirement of the current environment-friendly policy and has good environment friendliness. Meanwhile, a preparation process for the waste paper deinking agent is simple, easy in operation and good in finished product stability, can be applied to the deinking process of multiple waste papers and has ideal deinking effect; and the waste paper deinking agent is convenient to transport and store and is quickly dissolved in the deinking production process, namely the waste paper deinking agent has good economic benefit. Therefore, the waste paper deinking agent has remarkable environmental benefit and economic benefit.

Description

technical field [0001] The invention relates to a waste paper deinking agent used for waste paper deinking in the field of pulp and paper making. Background technique [0002] With the enhancement of people's awareness of environmental protection and the shrinking of social resources, the recycling of waste paper has received unprecedented attention, and various waste paper recycling technologies have emerged in an endless stream. Among them, the use of waste paper to produce high-quality living and 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 treatment of waste paper is a key link in the pulping process of waste paper. Since all kinds of waste paper are more or less processed by printing, especially waste papers such as waste newspapers, waste books and periodicals that have been printed with ink, the ink is not easy to...

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.