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Regenerable inorganic paper, production and use thereof

A technology of inorganic paper and inorganic components, applied in the field of papermaking, can solve problems such as unfavorable environmental protection and inconvenient recycling

Inactive Publication Date: 2005-07-27
罗瑞真 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a reproducible inorganic paper and its manufacturing method and application in order to solve the problems that the existing papermaking method is not conducive to environmental protection and inconvenient for recycling.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In this embodiment, the inorganic paper of the present invention is mainly used for packaging and printing materials.

[0050] In this example, an inorganic binder should be used, formed by hydration of calcium silicate. The ratio of calcium silicate to water is from 1:4 to 1:5. Too little water will result in incomplete hydration of the calcium silicate, too much water will result in loss of adhesive properties.

[0051] The inorganic paper substrate needs to be prepared in advance. Mix glass fibers of different sizes in water and binder and prepare according to the following ratios:

[0052] Fiberglass 30

[0053] water 60

[0054] Adhesive 10

[0055] The shape of the glass fiber can be freely selected, and glass fibers of various sizes can be used. The particle size of glass fiber can be selected as 5μm, which will make the final product have a very fine texture. Glass fiber particles can also be about 0.5 cm in size, using larger particles will increase the ...

Embodiment 2

[0064] In this embodiment, the inorganic paper of the present invention is mainly used for holding food. The difference from Example 1 is that in this example, natural organic cellulose should be used as the binder.

[0065]The molecular weight of the organic cellulose will be between 10,000 and 100,000 units. Too low a molecular weight will cause it to lose its cohesiveness, while too high a molecular weight will lead to the formation of a coagulate. Methanol cellulose, or starch or mixtures thereof can be used as the organic binder.

[0066] Mix organic cellulose with water according to the following ratios:

[0067] Methanol cellulose: 1% by weight of water.

[0068] Starch: 3% by weight of water.

[0069] In this way, the organic binder required for the manufacture of the inorganic paper of the present invention is produced.

Embodiment 3

[0071] In this embodiment, a preparation method of nano inorganic paper is provided.

[0072] Grind the inorganic ingredients titanium dioxide (10%), aluminate silicate (30%), magnesium silicate (30%), calcium silicate (30%) into fine powder, and add the weight equivalent of water.

[0073] The inorganic component solution is sprayed on the surface of the air-dried inorganic paper substrate, wherein the weight ratio of the inorganic component to the inorganic paper substrate is:

[0074] Inorganic components 20-60

[0075] Substrate 40-80

[0076] Put the material in the oven and adjust the temperature at 80°C to allow the water to evaporate slowly. In the oven, the bulk water content of the inorganic paper matrix and the inorganic components will be removed, and the inorganic components will loosely bond with the surface oxygen molecules of the fiberglass.

[0077] Then, spray 5%-10% of total weight adhesive on the two surfaces of the substrate. Then put the material in ...

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PUM

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Abstract

A regeneratable inorganic paper is prepared from adhesive, substrate and inorganic components (silicon oxide, calcium silicate and inorganic high-molecular polymer) through preparing substrate from glass fibres, water and adhesive through mixing and drying, grinding said inorganic components and mixing with water, spraying the mixture onto substrate, heating for dewatering, spraying adhesive to both surfaces of substrate, and heating for dewatering.

Description

Technical field [0001] The invention relates to the field of papermaking, in particular to a renewable inorganic paper, its manufacturing method and application. Background technique [0002] The manufacture of ordinary paper uses wood as the main raw material, which has serious environmental protection problems. Dioxin and other harmful substances will be produced in pulp and paper dyeing, manufacturing, and processing, which will have a permanent impact on the environment; moreover, the continuous cutting of trees will cause the disappearance of some endangered animals in the forest, and the earth's climate will suddenly change. In consideration of environmental protection, a lot of used paper will be recycled, sorted, sterilized, made into paste, dyed and recycled. However, the process of processing and recycling used paper is complicated and expensive, and often causes problems such as sewage and harmful gases such as nitrous acid and acid gas. In addition, recycled pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H13/36D21H13/40D21H17/25
Inventor 罗瑞真陈锦标
Owner 罗瑞真