Modified wollastonite mineral composite fibre for making paper and its paper-making process

A composite fiber and mineral fiber technology, applied in textiles and papermaking, inorganic fiber/sheet, etc., can solve the problems of ecological environment deterioration, consumption of large wood resources, and restriction of paper industry development, etc., to eliminate static electricity, improve opacity and uniformity degree, the effect of protecting forest resources and ecological environment

Inactive Publication Date: 2004-07-28
云南省非金属矿产应用研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the raw materials used in the paper industry are plant fibers, which consume a large amount of wood resources every year. At the same time, excessive deforestation has also caused serious deterioration of the ecological environment.
And paper is indispensable and necessary in human production and life. As far as the demand for paper products in my country is concerned, it is increasing at a rate of 10% every year. The sustainable development of the paper industry is facing serious challenges. The shortage of paper raw materials has restricted my country. The development of the paper industry, therefore, the paper industry has been looking for other paper fibers that can replace plant fibers for a long time, but there is still no effective substitute

Method used

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  • Modified wollastonite mineral composite fibre for making paper and its paper-making process
  • Modified wollastonite mineral composite fibre for making paper and its paper-making process
  • Modified wollastonite mineral composite fibre for making paper and its paper-making process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Add aluminum sulfate for industrial use and sodium bicarbonate for industrial use into a reaction kettle with a stirrer in a ratio of 1:1, add water to dissolve and heat up to 98°C, react for 10 minutes, cool and make a compound with a concentration of 20%. Modifier Al;

[0036] 2. The wollastonite raw ore is crushed by a hurricane superfine self-grinding machine to a particle size of 5-20 μm, and the average diameter: length = 1: 6-30 elongated fibers. 3% Spray the above-mentioned composite modifier Al on the wollastonite mineral, so that the modifier Al coats the surface of the wollastonite mineral, and obtain the modified wollastonite mineral composite fiber a.

Embodiment 2

[0038] 1. Put industrial aluminum hydroxide and industrial sodium carbonate into a reaction kettle with agitator in a ratio of 1:1, add water to dissolve and heat up to 98°C, react for 20 minutes, cool and make a compound with a concentration of 10%. Modifier A2;

[0039] 2. Crushing the limestone raw ore with an impact ultra-fine pulverizer to a particle size of 5-20 μm, average diameter: length = 1: 6-30 elongated fibers, and the above-mentioned compound modified by 10% of the wollastonite mineral fiber weight The modifier A2 is sprayed on the wollastonite mineral fiber, so that the modifying agent A2 is coated on the surface of the wollastonite mineral fiber, and the modified wollastonite mineral composite fiber b is obtained.

Embodiment 3

[0041] Crushing wollastonite raw ore into elongated fibers with a particle size of 5-20 μm and average diameter: length = 1:6-30, and adding modifier B, namely aluminum trichloride, according to 3‰ of wollastonite mineral weight, And make it coated on the surface of wollastonite mineral to obtain the modified wollastonite mineral composite fiber c.

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Abstract

The present invention provides a modified wollastonite mineral composite fibre for making paper and its paper-making method. It includes the following steps: breaking wollastonite raw ore to obtain the thin-long fibre whose grain size is 5-20 micrometer and the ratio of mid-diameter:length=1:6-30, and according to the ratio of alkali or salt of aluminium: alkali or salt of sodium=1:1 adding modification agent whose added quantity is 3-10% of wollastonite mineral composite fibre weight so as to obtain the wollastonite mineral composite fibre covered with modification agent. In the course of preparing pulp in paper-making process 5-50% of modified wollastonite mineral composite fibre and 50-95% of plant fibre and paper-making auxiliary material are added, it can reduce production cost.

Description

technical field [0001] The invention relates to a modified wollastonite mineral composite fiber for papermaking instead of plant fibers and a papermaking method using the modified wollastonite mineral composite fiber. Background technique [0002] At present, most of the raw materials used in the papermaking industry are plant fibers, which consume a large amount of wood resources every year. At the same time, excessive deforestation has also caused serious deterioration of the ecological environment. And paper is indispensable and necessary in human production and life. As far as the demand for paper products in my country is concerned, it is increasing at a rate of 10% every year. The sustainable development of the paper industry is facing serious challenges. The shortage of paper raw materials has restricted my country. The development of the paper industry, therefore, the paper industry has been looking for other paper fibers that can replace plant fibers for a long time,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/38D21H15/12
Inventor 施玉北孙传敏李晓明赵劲
Owner 云南省非金属矿产应用研究所
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