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Preparation method of cotton stalk printing paper pulp

A technology for pulp and cotton stalks is applied in the field of printing and papermaking, which can solve the problems of yellowing and darkening, complicated manufacturing process, affecting the quality of life, etc., and achieve the effect of improving the strength of paper products and enhancing the bonding force.

Inactive Publication Date: 2014-03-26
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 prepares a cotton stalk printing pulp, and the specific steps are as follows:

[0016] (1) Use steam explosion method to blast 100kg of cleaned dry cotton stalks to obtain particles with an average particle size of 120 microns or less;

[0017] (2) Put the pellets into 50kg of water, add 15kg toluene diisocyanate, 1kg insect wax, 2kg dehydrated malic acid resin and 1kg polyurethane resin at the same time, heat up to 60℃, and stir for 1 hour;

[0018] (3) Add water with a temperature of 35°C to the mixture obtained in step (2), and at the same time add 2 kg of alum, stir for 15 minutes and filter, drain the filtrate, and retain the filter material;

[0019] (4) Put the filter material into the reactor, and at the same time add 17kg of titanium dioxide with an average particle size of less than 10 microns, 1kg of starch, 5kg of phenolic resin, and 0.1kg of octanol. Stir at 40℃ for 35 minutes to obtain this cotton stalk printing pulp .

[0020] The weight of t...

Embodiment 2

[0022] The present invention prepares a cotton stalk printing pulp, and the specific steps are as follows:

[0023] (1) Use steam explosion method to blast 100kg of cleaned dry cotton stalks to obtain particles with an average particle size of 120 microns or less;

[0024] (2) Put the pellets into 70kg of water, add 16kg of toluene diisocyanate, 2kg of insect wax, 3kg of dehydrated malic acid resin and 2kg of polyurethane resin at the same time, raise the temperature to 70℃ and stir for 2 hours;

[0025] (3) Add water at a temperature of 40°C to the mixture obtained in step (2), and at the same time add 3 kg of alum, stir for 25 minutes, filter, drain the filtrate, and retain the filter material;

[0026] (4) Put the filter material into the reactor, and at the same time add 20kg of titanium dioxide with an average particle size of less than 10 microns, 2kg of starch, 6kg of phenolic resin, 0.5kg of octanol, and stir at 50℃ for 40 minutes to obtain this cotton stalk printing pulp .

[...

Embodiment 3

[0029] The present invention prepares a cotton stalk printing pulp, and the specific steps are as follows:

[0030] (1) Use steam explosion method to blast 100kg of cleaned dry cotton stalks to obtain particles with an average particle size of 120 microns or less;

[0031] (2) Put the pellets into 80kg of water, add 16kg of toluene diisocyanate, 2kg of insect wax, 4kg of dehydrated malic acid resin and 2kg of polyurethane resin at the same time, raise the temperature to 80℃ and stir for 2 hours;

[0032] (3) Add water at a temperature of 50°C to the mixture obtained in step (2), and at the same time add 4 kg of alum, stir for 30 minutes and filter, drain the filtrate, and retain the filter material;

[0033] (4) Put the filter material into the reactor, and at the same time add 23kg of titanium dioxide with an average particle size of 10 microns or less, 3kg of starch, 6kg of phenolic resin, 0.8kg of octanol, and stir at 60℃ for 50 minutes to obtain this cotton stalk printing pulp .

...

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Abstract

A preparation method of cotton stalk printing paper pulp particularly includes the following steps that firstly, cleaned dry cotton stalks are exploded through a steam explosion method, and then granules with the average grain diameter being below 120 micrometers are obtained; secondly, the granules are placed in water, toluene diisocyanate, insectwax, glyceride maleic anhydride resin and 1-2 parts by weight of polyurethane resin are added, temperature rises to the range from 60 DEG C to 80 DEG C, and the mixture is stirred for 1-2 hours; thirdly, water at the temperature ranging from 35 DEG C to 50 DEG C is added to the mixture obtained through the second step, and meanwhile 2-4 parts by weight of alums are added, the mixture is filtered after being stirred for 15-30 minutes, filter liquor is drained, and filter materials are reserved; fourthly, the filter materials are placed in a reaction kettle, titanium dioxide with the average grain diameter being below 10 micrometers, 1-3 parts by weight of starch, phenolic resin and octyl alcohol are added, and the mixture is stirred. Paper products prepared through the paper pulp is bright in color, tough and durable, good in printing performance, long in service life, and 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 progress of science and technology, people's living standards are getting higher and higher, and the supply of various materials is extremely abundant. Among them, paper products are also everywhere. All kinds of newspapers, magazines, books, notebooks, note paper, document bags, printing paper, and even cartons, packaging boxes, etc. are used in a huge amount. Most of these paper products are made of plant fibers, of which wood fiber is mostly used. However, excessive timber logging will bring about 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 the large amount of waste, saving is only a drop in the bucket. Th...

Claims

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Application Information

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IPC IPC(8): D21B1/36D21H17/08D21H17/60D21H17/33D21H17/48D21H17/67D21H17/06
Inventor 陈明
Owner SUZHOU YIHENG PRINTING
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