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Preparation method of greening waste printing paper pulp

A technology for greening waste and pulp, applied in the field of printing and papermaking, can solve problems that affect the quality of life, thick paper, yellowish and dark colors, etc.

Inactive Publication Date: 2014-03-19
SUZHOU YIHENG PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, excessive felling of wood will bring a series of serious environmental problems, which will in turn affect people's quality of life
Although the society has been advocating saving paper, compared with a lot of waste, saving is only a drop in the bucket, so the development of paper products made from waste is imminent
At present, the paper products made from waste mainly include recycled paper. Recycled paper is a paper product made from waste paper. It has disadvantages such as complicated manufacturing process, yellowish and dark color, thick and brittle paper, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The present invention has prepared a kind of green waste printing pulp, and concrete steps are as follows:

[0016] (1) 100kg of cleaned and dried greening waste is shredded at high speed to make it into pellets with an average particle size of 10 microns;

[0017] (2) Fumigate the pellets in steam at 170°C for 30 minutes, and put 10kg of acetic anhydride in the steam environment while fumigation;

[0018] (3) Put the material fumigated in step (2) into water at 70°C, add 3kg of alum at the same time, stir for 70 minutes, then filter, discharge the filtrate, and keep the filter material;

[0019] (4) Put the filter material into the reaction kettle, add 13kg of toluene diisocyanate, 4kg of polyethylene wax, and 2kg of acrylic resin at the same time, and stir at 60°C for 120 minutes;

[0020] (5) Continue to add 18kg of calcium carbonate with an average particle size of less than 10 microns, 2kg of aluminum sulfate, 0.5kg of phenolic resin, 3kg of polyethylene oxide, an...

Embodiment 2

[0023] The present invention has prepared a kind of green waste printing pulp, and concrete steps are as follows:

[0024] (1) 100kg of cleaned and dried greening waste is shredded at high speed to make it into pellets with an average particle size of 20 microns;

[0025] (2) Fumigate the pellets in steam at 175°C for 50 minutes, and at the same time of fumigation, put 11kg of acetic anhydride in the steam environment;

[0026] (3) Put the material fumigated in step (2) into water at 78°C, add 4kg of alum at the same time, stir for 80 minutes, then filter, discharge the filtrate, and keep the filter material;

[0027] (4) Put the filter material into the reaction kettle, add 16kg of toluene diisocyanate, 6kg of polyethylene wax, and 5kg of acrylic resin at the same time, and stir at 70°C for 125 minutes;

[0028] (5) Continue to add 19kg of calcium carbonate with an average particle size of less than 10 microns, 3kg of aluminum sulfate, 1kg of phenolic resin, 4kg of polyethyl...

Embodiment 3

[0031] The present invention has prepared a kind of green waste printing pulp, and concrete steps are as follows:

[0032] (1) 100kg of cleaned and dried greening waste is shredded at high speed to make it into pellets with an average particle size of 30 microns;

[0033] (2) Fumigate the pellets in steam at 180°C for 60 minutes, and put 12kg of acetic anhydride in the steam environment while fumigation;

[0034] (3) Put the material fumigated in step (2) into water at 85°C, add 5kg of alum at the same time, stir for 90 minutes, then filter, discharge the filtrate, and keep the filter material;

[0035] (4) Put the filter material into the reaction kettle, add 19kg of toluene diisocyanate, 8kg of polyethylene wax, and 9kg of acrylic resin at the same time, and stir at 80°C for 130 minutes;

[0036] (5) Continue to add 20kg of calcium carbonate with an average particle size of less than 10 microns, 4kg of aluminum sulfate, 1.8kg of phenolic resin, 4kg of polyethylene oxide, an...

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Abstract

The invention relates to a preparation method of greening waste printing paper pulp, which comprises the following steps: (1) carrying out high-speed chopping on cleaned and dried greening waste; (2) fumigating the granular material in 170-180 DEG C steam for 30-60 minutes, wherein acetic anhydride is added in the steam environment in the fumigation process; (3) putting the fumigated material in the step (2) in 70-85 DEG C water, adding alum, stirring, filtering, discharging the filtrate, and maintaining the filter material; (4) adding the filter material into a reaction kettle while adding toluene diisocyanate, polyethylene wax and acrylic resin, and stirring; and (5) continuing adding calcium carbonate with the average particle size of lower than 10 micrometers, aluminum sulfate, phenol aldehyde resin, polyoxyethylene and tributyl phosphate into the reaction kettle, and stirring. The paper product prepared from waste plant fibers by the method has the advantages of bright color, high toughness, high durability, favorable printing performance and long service life, and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of printing and papermaking, in particular to a green and environment-friendly pulp preparation method. Background technique [0002] After entering the 21st century, with the continuous advancement of science and technology, people's living standards are getting higher and higher, and the supply of various materials is extremely rich, among which paper products can be seen everywhere. Various newspapers, magazines, books, notebooks, sticky notes, file bags, printing paper, and even cartons and packaging boxes are used in a huge amount. Most of these paper products are made of plant fibers, and most of them are wood fibers. However, over-cutting of timber will bring a series of serious environmental problems, and these environmental problems will turn around and affect people's quality of life. Although the society has been advocating saving paper, compared with a lot of waste, saving is only a drop in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/14D21H17/48D21H17/35D21H17/67D21H17/10
Inventor 陈明
Owner SUZHOU YIHENG PRINTING