Low-ink paper sludge and preparation method thereof

A technology of ink and paper slime, applied in the field of materials, can solve the problems of restricting the application and development of waste newspapers, unsatisfactory ink removal effect, and easy odor of paper slime, etc., to achieve enhanced flotation selectivity, low ink content, and no irregularities porosity effect

Active Publication Date: 2017-09-29
NANJING TAOTESI SOFTWARE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, waste paper, especially a large amount of waste newspapers, has the advantage of being easy to dissociate and reuse, but there are problems such as heavy printing ink and unsatisfactory i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method comprises the following steps:

[0034] 1) breaking the waste paper to obtain shredded paper sheets in corresponding parts by weight, washing the sediment to remove impurities;

[0035] 2) Then add additives in corresponding parts by weight, add an appropriate amount of water, control the pH value within the acidic range, and carry out micro-fermentation treatment;

[0036] 3) adding thermal initiators of corresponding parts by weight to the material processed through micro-fermentation, and autoclaving and sterilizing;

[0037] 4) Extruding and kneading the material sterilized by high pressure cooking to obtain intermediate fiber slurry;

[0038] 5) adding deinking agent, glycerin and acacia extract of corresponding parts by weight to the intermediate fiber slurry, after stirring evenly, deinking by normal temperature flotation;

[0039] 6) Delamination and fiber separation are performed on the fiber slurry after the flotation deinking treatmen...

Embodiment 2

[0056] The preparation method comprises the following steps:

[0057] 1) breaking the waste paper to obtain shredded paper sheets in corresponding parts by weight, washing the sediment to remove impurities;

[0058] 2) Then add additives in corresponding parts by weight, add an appropriate amount of water, control the pH value within the acidic range, and carry out micro-fermentation treatment;

[0059] 3) adding thermal initiators of corresponding parts by weight to the material processed through micro-fermentation, and autoclaving and sterilizing;

[0060] 4) Extruding and kneading the material sterilized by high pressure cooking to obtain intermediate fiber slurry;

[0061] 5) adding deinking agent, glycerin and acacia extract of corresponding parts by weight to the intermediate fiber slurry, after stirring evenly, deinking by normal temperature flotation;

[0062] 6) carrying out latent elimination and fiber separation of the fiber slurry after the flotation and ink remova...

Embodiment 3

[0079] The preparation method includes the following steps:

[0080] 1) smashing the waste paper to obtain the shredded paper sheet of corresponding parts by weight, washing the sediment to remove impurities;

[0081] 2) then add the additive of the corresponding parts by weight, add an appropriate amount of water, and the pH value is controlled within the acid range to carry out micro-fermentation treatment;

[0082] 3) adding the thermal initiator of corresponding parts by weight to the material subjected to the micro-fermentation treatment, and autoclaving and sterilizing;

[0083] 4) Squeeze and knead the material sterilized by autoclaving to obtain intermediate fiber slurry;

[0084] 5) adding the deinking agent, glycerin and acacia extract of corresponding parts by weight to the intermediate fiber slurry, after stirring evenly, the ink is removed by flotation at room temperature;

[0085] 6) carrying out latent elimination and fiber separation of the fiber slurry after...

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PUM

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Abstract

The invention discloses low-ink paper sludge and a preparation method thereof. First, waste paper is smashed to obtain shredded paper material slices, the shredded paper material slices are washed, residues are settled, and impurities are removed. Second, additives are added, and micro-fermentation treatment is performed within the controlled acid range of pH (potential of hydrogen) values. High-pressure digestion and sterilization are performed, and materials are extruded and kneaded to obtain intermediate fiber stuff. Deinking agents, glycerol and Chinese honey locust extracts are added into the intermediate fiber stuff, the materials are uniformly stirred, and ink is removed by normal temperature flotation. Latency, fiber separation and disintegration and concentration are performed to obtain paper pulp. Bentonite, blending agents, antioxidants and auxiliaries are sequentially added, and the materials are stirred while black light irradiation to prepare a target product. The obtained paper sludge is prepared by recycling the waste paper, precious resources are recycled, the paper sludge is green, economical, environmentally friendly, low in ink content, uniform in texture and free from irregular pores and undesirable odor.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a method for preparing paper mud. Background technique [0002] Traditional paper mud is made by soaking paper in water, kneading it with glue, and making it into "paper mud" after a certain process. Animals and other objects made of "paper clay" will become very hard after being dried in the sun. Afterwards, they will be drawn, colored and other processes to present lifelike images of artistic creations. [0003] However, in real life, if unused paper products are used to make paper mud, it will cause a great waste of resources. Therefore, using waste paper to recycle resources to make paper mud has a large application space and can It greatly alleviates the problem of shortage of natural raw materials, and also has the advantages of environmental protection, less pollution, and low energy consumption. [0004] However, waste paper, especially a large amount of waste newsp...

Claims

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Application Information

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IPC IPC(8): D21B1/32D21B1/34D21C5/00D21H17/20D21H17/25D21H17/28D21H17/68D21H21/14
CPCD21B1/32D21B1/345D21C5/005D21H17/20D21H17/25D21H17/28D21H17/68D21H21/14Y02W30/64
Inventor 范刚华徐涛曹堪洲陈伟伟
Owner NANJING TAOTESI SOFTWARE TECH CO LTD
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