CN102747652B - Digital encryption method for fiber papermaking process - Google Patents

Abstract

A digital encryption method of fiber paper making process, in the pulping process, adding magnetic fiber and mixing evenly; in the pulp flow process, using a magnetic encoding controller to control the encoding to act on the magnetic fiber in the pulp, the magnetic encoder controller is set Above the network part, it includes an input module, a conversion module, a storage module, and a processing module. The input module is connected to the conversion module for inputting decimal numbers. The conversion module is connected to the storage module to convert the input numbers into 8421 codes and process them. The module is connected with the storage module to control the magnetism of the barcode on the magnetic encoder; the encoding area of the magnetic encoding controller is rectangular, the width is the width of the paper web, and the magnetic stripes are distributed in the encoding area at equal intervals, and the magnetic encoder passes through Electricity is used to control the magnetism of each magnetic strip. When the pulp flows through the code control area, the magnetic fibers in the pulp are gathered under the partition corresponding to the magnetic controller under the action of the magnetic field, so that a magnetic barcode will be formed inside the paper.

Description

A Digital Encryption Method of Fiber Paper Forming Process

technical field

The invention belongs to the technical field of papermaking, and in particular relates to a digital encryption method for fiber paper forming process.

Background technique

In recent years, with the rapid development of the bill business, some criminals have made fake bills by cloning and altering bills, which not only caused heavy economic losses to the country, but also affected the stability of the financial order. Among the counterfeit bills, ordinary bills (such as tax bills) have become the main counterfeit objects, but since the anti-counterfeiting digital is only printed on the surface of the paper, it is easy to be forged, so the original inquiry digital anti-counterfeiting label can no longer adapt Management identification requirements for the current ticket.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a digital encryption method for the process of fiber paper making, which can encrypt the inside of the paper during the papermaking process, and the encrypted information is embedded in the paper fibers, which cannot be read by the human eye. It can be seen from the appearance that it must be decoded by the corresponding decoder to be recognized.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A digital encryption method of fiber paper making process, adding the following processes on the basis of modern papermaking processes:

First, in the process of pulping, add 30±5% of pulp weight and mix well;

Second, during the pulp flow process, the magnetic encoding controller 1 is used to control the encoding to act on the magnetic fibers in the pulp, thereby forming a magnetic barcode inside the paper;

in,

The magnetic encoder controller 1 is arranged above the network part of the papermaking equipment, and includes an input module, a conversion module, a storage module, and a processing module. The input module is connected to the conversion module for inputting decimal numbers, and the conversion module is connected to the storage module. The input numbers are converted into 8421 codes, and the processing module is connected with the storage module to control the magnetism of the barcode on the magnetic encoder.

A layer of clapboard 2 is covered above the wire part of the papermaking equipment, and a guide rail 3 is set above the partition along the pulp flow direction. The magnetic encoding controller 1 is arranged on the guide rail 3, and the slide rail 3 is adjusted so that the position of the magnetic encoder controller 1 is in the wire part. Ensure that the coded wet paper web after forming will not be deformed.

The encoding area of described magnetic encoding controller 1 is rectangle, and width is the width of paper web, and magnetic strip is equally spaced in the encoding area, is provided with start bit in encoding area, and start bit is provided with more than other bits. Wide magnetic strips to be used as inspection marks after being formed into paper.

Compared with prior art, the advantage of the present invention is:

The present invention magnetically encrypts the inside of the paper during the papermaking process, which cannot be seen by human eyes from the appearance, and thus cannot be scanned or copied. During the encryption process, the stored information is converted into 8421 codes, so as to achieve the purpose of storing data information inside the paper. In addition, the manufacturing process of the present invention is simple and the cost is low.

Description of drawings

Fig. 1 is the overall schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the wire part of the present invention.

Fig. 3 is a schematic diagram of encryption in the present invention.

Detailed ways

The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

The present invention will be further described by taking the code "2012" as an example.

Referring to Fig. 1, the modern papermaking process includes making pulp in the pulp tank, then forming a line on the wire part of the papermaking equipment, and then sending it to the winder after being squeezed and dried. The digital encryption method of the fiber paper forming process of the present invention is On the basis of the modern papermaking process, the following processes are added:

First, during the pulping process, add 30% of the pulp weight magnetic fiber and mix evenly;

The magnetic fiber can be Fe3O4, Fe2O3, CrO2 or trivalent iron oxide with cobalt added in iron oxide.

Second, a layer of partition board 2 is covered on the wire part of the papermaking equipment. A slide rail 3 is arranged above the partition board 2 along the pulp flow direction. A magnetic encoder controller 1 is arranged on the slide rail 3. The magnetic encoder 1 can be 3 can be moved in the direction of the pulp flow; when the pulp flows through the encoder controller, the magnetic fibers in the pulp are subjected to the action of the magnetic field to gather and form according to the control code of the magnetic controller, and the slide rail 3 is adjusted to make the magnetic encoder controller 1 in the wire part Proper position to ensure that the formed coded wet paper web will not be deformed, so that a magnetic barcode will be formed inside the paper.

Referring to Figures 2 and 3, the magnetic encoding controller 1 is placed above the wire section of the papermaking equipment, and includes an input module, a conversion module, a storage module, and a processing module. The input module is connected with the conversion module for inputting decimal numbers; the conversion module is connected with the storage module for converting the input numbers into 8421 codes; the processing module is connected with the storage module for controlling the magnetism of the barcode on the magnetic encoder.

The coding area of the magnetic coding controller 1 is rectangular, the width is the width of the paper web, the magnetic stripes are distributed in the coding area at equal intervals, and a start bit is set in the coding area, which is wider than other bits. Magnetic strip, so that it can be used as a detection mark after being made into paper.

A layer of separator 2 is covered on the wire part of the papermaking equipment, and the magnetic encoding controller 1 is placed on the separator to prevent the slurry from flocculating due to the action of magnetic force when the magnetic encoder is working.

The working process of the magnetic encoder 1 is:

Input "2" on the input module, the conversion module converts the number "2" into "0010", and saves it in the storage module, repeats the above steps, and finally converts "2012" into "0010000000010010" and stores it in the storage module, processing The module controls the electric field on each magnetic strip according to the binary number, and indirectly controls the magnetic field of each magnetic strip. Magnetic means "1", and non-magnetic means "0".

The working process of the processing module is:

"0010000000010010" is the code converted from "2012", a total of 16 binary digits, every four binary digits represent a decimal number, "0010" represents "2", "0000" represents "0", "0001" represents " 1". The processing module reads the first binary bit and judges whether the byte is "1". If it is "1", the first magnetic strip after the start bit is energized. According to the electromagnetic effect, the magnetic strip is magnetic; if If it is not "1", the number of digits read by the processing module is increased by 1 to control the next magnetic stripe; the processing module returns to the first byte after reading all the bytes.

The barcode formed by the magnetic fiber is inside the paper and cannot be recognized in appearance. It must be decoded by the corresponding magnetic stripe decoder before it can be recognized.

Claims (5)

1. a digital encryption method of fiber papermaking process, is characterized in that, on the basis of modern wet papermaking process, has added following operation: First, in the process of pulping, add magnetic fiber with pulp weight 30±5% and mix evenly; Second, during the pulp flow process, the magnetic encoding controller (1) is used to control the encoding to act on the magnetic fibers in the pulp, thereby forming a magnetic barcode inside the paper; in, The magnetic encoder controller (1) is arranged above the net part of the papermaking equipment, and includes an input module, a conversion module, a storage module, and a processing module. The input module is connected to the conversion module for inputting decimal numbers, and the conversion module and the storage module Connected to convert the input numbers into 8421 codes, and the processing module is connected with the storage module to control the magnetism of the barcode on the magnetic encoder. 2. the digitization encryption method of fiber papermaking process according to claim 1, is characterized in that, one deck partition (2) is covered above the papermaking equipment wire section, guide rail (3) is set along the slurry flow direction above the partition, The magnetic encoding controller (1) is arranged on the guide rail (3). 3. The digital encryption method of the fiber-to-paper process according to claim 2, characterized in that, the guide rail (3) makes the magnetic encoding controller (1) ensure that the encoded wet paper web after forming does not will deform. 4. the digitization encryption method of fiber paper-forming process according to claim 1, is characterized in that, the encoding area of described magnetic encoding controller (1) is rectangular, and width is the width of paper web, and magnetic stripe is equally spacedly distributed In the encoding area, a start bit is set in the encoding area, and the width of the magnetic stripe of the start bit is wider than that of other bits. 5. The digital encryption method of fiber paper-making process according to claim 1, characterized in that, the magnetic fiber is Fe ₃ O ₄ , Fe ₂ O ₃ , CrO ₂ or trivalent oxidation of cobalt added in iron oxide iron.