Preparation method of paper with magnetic characteristics

Abstract

The invention provides a preparation method of paper with magnetic characteristics, in particular to the paper with the magnetic characteristics, which is prepared by filling magnetic inorganic materials into the cell cavities of paper pulp fibers. The preparation method comprises the following steps of: firstly, smelting boron oxide, aluminum oxide, silicon oxide rare metal oxide and the like serving as raw materials at a high temperature to prepare magnetic inorganic material grains; and then, by utilizing a papermaking process, filling the magnetic inorganic material grains into cell cavities so as to prepare the paper with the magnetic characteristics. The paper prepared by the invention belongs to a renewable resource and has the magnetic characteristics including magnetic responding, magnetic recording and the like, so that the paper can be applied to special paper products needing special identification, such as invoice paper, packaging paper and handwriting paper. In the paper preparation process, special equipment is not needed, the operation is simple and the industrial production is easy to realize; and the magnetism is permanent so that the paper is not easy to degauss and cannot be counterfeited easily.

Description

technical field

[0001] The invention relates to a method for manufacturing paper, in particular to a method for preparing paper with magnetic properties. Background technique

[0002] With the development of science and technology, various counterfeit and counterfeit products emerge in an endless stream. Special paper products such as bills, product packaging, calligraphy and painting can bring huge profits to counterfeiters, so they do not hesitate to use various cutting-edge new technologies (such as computer graphics processing software, color printing, high-precision scanning, digital printing, etc.) to imitate, Make original anti-counterfeiting be easy to lose its peculiar concealment. Therefore, it is urgent to develop and research various new special and efficient anti-counterfeiting technologies. CN1609919 discloses a kind of anti-counterfeit film inner label sticker and its preparation method and application, comprising a label paper layer (2) printed with an anti...

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