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Filler processing technology and papermaking technology

A treatment process and pretreatment technology, which is applied in the direction of dyeing polymer organic compound treatment, inorganic compound addition, etc., can solve the problems of shortening the service life of the forming net, wear of the forming net, loss of fillers, etc., and achieve changes in appearance characteristics and retention rate The effect of improving and extending the service life

Inactive Publication Date: 2015-02-11
GOLD EAST PAPER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of mixing with fibers and forming on the Internet, the smaller particle size makes the loss of the filler more serious. At the same time, the hard hammer-like appearance of the filler particles also causes great wear and tear on the forming wire of the paper machine, shortening the use of the forming wire life

Method used

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  • Filler processing technology and papermaking technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: The filler particles are pretreated according to the ratio of mixing 0.15 kg of polyacrylamide emulsion with 1 ton of filler particles to obtain a mixed emulsion of filler particles, and then the mixed emulsion of filler particles is added to pulp for papermaking .

Embodiment 2

[0025] Example 2: The filler particles are pretreated according to the ratio of 0.5 kg of polyacrylamide emulsion mixed with 1 ton of filler particles to obtain a mixed emulsion of filler particles, and then the mixed emulsion of filler particles is added to pulp for papermaking .

Embodiment 3

[0026] Example 3: The filler particles were pretreated according to the ratio of 1.2 kg of polyacrylamide emulsion mixed with 1 ton of filler particles to obtain a mixed emulsion of filler particles, and then the mixed emulsion of filler particles was added to pulp for papermaking .

[0027] The experimental data of above-mentioned comparative example and embodiment contrasts the following table:

[0028]

[0029] In this embodiment, the test of the wear amount of the forming wire is carried out by the following method: a quantitative GCC solution is placed in a closed container containing a copper wire and rotated. After 170,000 revolutions, the copper wire is taken out, and the distance before and after the copper wire is measured. Poor quality, which is used to characterize the wear of the forming wire.

[0030] It can be clearly seen from the data in the above table that if the untreated filler is directly used for papermaking, the wear of the paper machine forming wir...

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Abstract

A related filler processing technology comprises the following steps: providing a polyacrylamide emulsion with the concentration of 0.1%-2% and the viscosity of 180 cps-230 cps and the polyacrylamide molecular weight scope of 3 million-5 million; and mixing the polyacrylamide emulsion with a filler to pretreat the filler, and keeping the average particle size of the pretreated filler particles at 8-32 mu m. The invention also relates to a papermaking technology. Compared with the prior art, the above filler processing technology and the papermaking technology help to improve the filler retention rate and also substantially reduce wear of the filler particles on a paper machine molding net.

Description

technical field [0001] The invention relates to a filler treatment process and a papermaking process. Background technique [0002] The application of fillers can improve the printability of paper, and it is also a way of energy-saving and environmentally friendly papermaking. [0003] The particle size of the filler is generally quite small, about 2 μm, and it belongs to the francium hammer-like hard substance. In the process of mixing with fibers and forming on the Internet, the smaller particle size makes the loss of the filler more serious. At the same time, the hard hammer-like appearance of the filler particles also causes great wear and tear on the forming wire of the paper machine, shortening the use of the forming wire life. Contents of the invention [0004] In view of this, it is necessary to provide a filler treatment process and a papermaking process that can solve the above problems. [0005] A filler treatment process, which includes the following steps: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/67D21H17/55C09C3/10
Inventor 穆永生陈剑马兴虎于旺盛马明玉王双龚斌
Owner GOLD EAST PAPER JIANGSU
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