Low-specific-gravity stone paper

A technology of stone paper with small specific gravity, applied in coated paper base paper, pigmented coating, etc., can solve the problems of ecological imbalance of the earth, consumption of forest resources, large investment in equipment, etc., and achieve good folding and tear resistance , Improve paper quality and reduce manufacturing costs

Active Publication Date: 2011-08-17
大正新型材料(肇庆)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional papermaking technology has at least the following deficiencies: 1. The main raw material for papermaking is wood pulp made from trees. The papermaking industry consumes a lot of valuable forest resources, which is an important factor leading to the imbalance of the earth's ecology
2. The paper industry also consumes a lot of water and energy
3. Most of the production of various papers is produced by wet method. A series of chemical and physical methods are used to produce pulp, which discharges

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present invention is a stone paper with a small specific gravity, which is composed of a base paper layer and a coating layer, and the coating layer is coated on the base paper layer.

[0029] The base paper layer is composed of synthetic resin and mixing materials. The weight of synthetic resin is 15 parts by weight and the weight of mixing material is 70 parts. The synthetic resin is polylactic acid, or EVA, or PP, or PE or any two of them. The combination; the mixture is hollow glass beads, or fly ash, or their combination.

[0030] The components of the coating layer include acrylic resin, lithopone powder and deionized water, and their respective weight parts are: acrylic resin 20, lithopone 20, and deionized water 30.

[0031] The processing steps are:

[0032] , The mixture is heated and dehydrated to make the weight percentage of the water content less than or equal to 0.2%, and stir evenly;

[0033] 、Mix the synthetic resin powder with the well-stirred mixture and...

Embodiment 2

[0043] Structure The stone paper of the present invention with a small specific gravity is composed of a base paper layer and a coating layer, and the coating layer is coated on the base paper layer.

[0044] The base paper layer is composed of synthetic resin and mixing material. The weight of synthetic resin is 22, and the weight of mixing material is 77. The synthetic resin is polylactic acid, or EVA, or PP, or PE or any two of them. The combination; the mixture is hollow glass beads, or fly ash, or their combination.

[0045] The components of the coating layer include acrylic resin, lithopone powder and deionized water, and their respective weight parts are: acrylic resin 30, lithopone 30, and deionized water 40.

[0046] The processing steps are:

[0047] , Heat the mixture to dry and dehydrate, make the weight percentage of the water content less than or equal to 0.2%, and stir evenly;

[0048] 、Mix the synthetic resin powder with the well-stirred mixture and stir evenly, then...

Embodiment 3

[0058] The present invention is a stone paper with a small specific gravity, which is composed of a base paper layer and a coating layer, and the coating layer is coated on the base paper layer.

[0059] The base paper layer is composed of synthetic resin and mixing material. The weight of synthetic resin is 30, and the weight of mixing is 85. The synthetic resin is polylactic acid, or EVA, or PP, or PE or any two of them. The combination; the mixture is hollow glass beads, or fly ash, or their combination.

[0060] The composition of the coating layer includes acrylic resin, lithopone powder and deionized water, and their respective weight parts are: acrylic resin 40, lithopone 40, and deionized water 50.

[0061] The processing steps are:

[0062] , Heat the mixture to dry and dehydrate, make the weight percentage of the water content less than or equal to 0.2%, and stir evenly;

[0063] 、Mix the synthetic resin powder with the evenly-stirred mixture and stir evenly, then carry out...

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Abstract

The invention discloses low-specific-gravity stone paper relating to synthetic paper. The low-specific-gravity stone paper comprises a base paper layer and a coating layer, wherein the coating layer is coated on the base paper layer; the base paper layer comprises 15-30 parts by weight of synthetic resin and 70-85 parts by weight of mixing material, wherein the synthetic resin is polylactic acid, EVA (ethylene vinyl acetate copolymer), PP (polypropylene), PE (poly ehtylene) or a mixture of any two of the polylactic acid, the EVA, the PP and the PE; the mixing material is a hollow glass ball, coal ash or the mixture of the hollow glass ball and the coal ash; and the coating layer comprises 20-40 parts by weight of acrylic resin, 20-40 parts by weight of lithopone and 30-50 parts by weight of deionized water. The low-specific-gravity stone paper has the following benefits: the mixing material is the hollow glass ball or coal ash so that the mixing material has low specific gravity and good dispersity; the lithopone has good covering power, thus the weight of the paper is convenient to reduce, the paper quality is improved, and the manufacturing cost is reduced.

Description

Technical field [0001] The invention relates to stone paper, especially a stone paper with a small specific gravity. Background technique [0002] The demand and consumption of paper products continue to increase, which is related to the progress of social civilization and the continuous improvement of human living standards. Traditional papermaking technology has at least the following shortcomings: 1. The main raw material for papermaking is wood pulp made from trees. The papermaking industry consumes a lot of precious forest resources, which is an important factor leading to the imbalance of the earth's ecology. 2. The paper industry also consumes a lot of water and energy. 3. The production of all kinds of paper mostly adopts wet production. A series of chemical and physical methods are used to produce paper pulp, which discharges a large amount of acid and alkali waste liquids, pollutes soil and water bodies, and destroys the environment on which mankind depends. However, ...

Claims

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Application Information

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IPC IPC(8): D21H19/38D21H19/72
Inventor 崔江
Owner 大正新型材料(肇庆)有限公司
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