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Neutral deinking agent for office printing waste paper, preparation method and application

A neutral deinking agent and waste paper technology, applied in processing waste paper, chemical paint/ink remover, paper making, etc., to achieve strong surface activity, wide application range, and reduce the difficulty of treatment

Pending Publication Date: 2022-03-11
ZHEJIANG HUANGMA TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned problems in the prior art, the present invention provides a neutral deinking agent for office printing waste paper, a preparation method and application thereof, which avoids the problems caused by the use of alkaline deinking agents in the prior art. High corrosiveness, environmental pollution problems, and good deinking effect

Method used

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  • Neutral deinking agent for office printing waste paper, preparation method and application
  • Neutral deinking agent for office printing waste paper, preparation method and application
  • Neutral deinking agent for office printing waste paper, preparation method and application

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Embodiment 1

[0029] This embodiment provides a neutral deinking agent for office printing waste paper and a preparation method thereof, specifically as follows:

[0030] Neutral deinking agent for office printing waste paper, in parts by weight, consists of the following components: 20 parts of polyoxyethylene myristate, 15 parts of p-tetraoctylphenyl polyoxyethylene ether, polyoxyethylene myristyl ether 15 parts, sodium dodecyl sulfonate 15 parts, phenol polyoxyethylene polyoxypropylene ether 5 parts, ethanol 5 parts, water 25 parts.

[0031] The preparation method of the office printing waste paper neutral deinking agent comprises the following steps:

[0032] 1. Take the above-mentioned components according to parts by weight;

[0033] 2. Pour the weighed phenol polyoxyethylene polyoxypropylene ether, ethanol and water into the reaction kettle, heat to 50°C, add sodium dodecylsulfonate, and dissolve it completely at a stirring speed of 400r / min; Reduce the stirring speed to 200r / min, ...

Embodiment 2

[0039] This embodiment provides a neutral deinking agent for office printing waste paper and a preparation method thereof, specifically as follows:

[0040] Neutral deinking agent for office printing waste paper, consisting of the following components in parts by weight: 25 parts of polyoxyethylene myristate, 10 parts of p-tert-octylphenyl polyoxyethylene ether, polyoxyethylene myristyl ether 15 parts, sodium dodecyl sulfonate 15 parts, phenol polyoxyethylene polyoxypropylene ether 10 parts, ethanol 5 parts, water 20 parts.

[0041]The preparation method of the office printing waste paper neutral deinking agent comprises the following steps:

[0042] 1. Take the above-mentioned components according to parts by weight;

[0043] 2. Pour the weighed phenol polyoxyethylene polyoxypropylene ether, ethanol and water into the reaction kettle, heat to 40°C, add sodium dodecylsulfonate, and dissolve it completely at a stirring speed of 380r / min; Reduce the stirring speed to 180r / min,...

Embodiment 3

[0049] This embodiment provides a neutral deinking agent for office printing waste paper and a preparation method thereof, specifically as follows:

[0050] Neutral deinking agent for office printing waste paper, in parts by weight, consists of the following components: 25 parts of polyoxyethylene myristate, 15 parts of p-tetraoctylphenyl polyoxyethylene ether, polyoxyethylene myristyl ether 10 parts, 18 parts of sodium dodecyl sulfonate, 7 parts of phenol polyoxyethylene polyoxypropylene ether, 5 parts of ethanol, and 20 parts of water.

[0051] The preparation method of the office printing waste paper neutral deinking agent comprises the following steps:

[0052] 1. Take the above-mentioned components according to parts by weight;

[0053] 2. Pour the weighed phenol polyoxyethylene polyoxypropylene ether, ethanol and water into the reaction kettle, heat to 45°C, add sodium dodecylsulfonate, and dissolve it completely at a stirring speed of 415r / min; Reduce the stirring spe...

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Abstract

The invention provides a neutral deinking agent for office printing waste paper as well as a preparation method and application thereof, and the neutral deinking agent comprises the following components in parts by weight: 20-25 parts of myristic acid polyoxyethylene ether, 10-15 parts of p-tert-octyl phenyl polyoxyethylene ether, 10-15 parts of myristyl alcohol polyoxyethylene ether, 15-20 parts of sodium dodecyl sulfate, 5-10 parts of phenol polyoxyethylene polyoxypropylene ether and 5-10 parts of ethanol. And 10-30 parts of water. The preparation method comprises the following steps: preparing materials according to the weight parts of the deinking agent, firstly mixing and heating the phenol polyoxyethylene polyoxypropylene ether, the ethanol and the water, adding the sodium dodecyl sulfate, and stirring until the sodium dodecyl sulfate is completely dissolved; and sequentially adding myristic acid polyoxyethylene ether, p-tert-octyl phenyl polyoxyethylene ether and myristyl alcohol polyoxyethylene ether, and stirring and mixing. By adopting the deinking agent disclosed by the invention, novel printing ink such as ultraviolet curing printing ink, laser printing and electrostatic copying printing ink, water-based printing ink and the like can be easily stripped from office printing waste paper fibers.

Description

technical field [0001] The invention relates to the technical field of recycling waste printing materials, in particular to a neutral deinking agent for office printing waste paper, a preparation method and application. Background technique [0002] In the past 30 years, due to the pressure of the environment and the economic benefits of waste paper utilization, waste paper recycling technology has developed greatly. According to relevant reports, if waste paper can be effectively used as secondary fiber to make paper, 60%-70% of energy can be saved, 2 / 3 of investment can be saved, and air pollution in the environment can be reduced by 60%-70%. At the same time, it can also protect my country's forest resources, reduce the cost of papermaking, and improve the international competitiveness of my country's papermaking industry. [0003] With the standardization and technological advancement of office equipment, most of the office waste paper is currently concentrated into hig...

Claims

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Application Information

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IPC IPC(8): C09D9/04D21B1/32D21B1/34D21C5/02
CPCC09D9/04D21B1/325D21B1/327D21B1/345D21C5/022D21C5/025Y02W30/64
Inventor 糜泽峰郏超伟高洪军许世杭殷其文
Owner ZHEJIANG HUANGMA TECH