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Security paper and its manufacturing method

A manufacturing method and paper technology, applied in papermaking, patterned paper, paper machines, etc., can solve the problem that the rotary screen cannot be reused, and achieve the effects of enhancing anti-counterfeiting effect, convenient operation, and saving production costs

Active Publication Date: 2017-04-05
KUNSHAN BANKNOTE PAPER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above method to make the non-filtered water area of ​​the rotary screen has the advantages of convenient operation, etc., but after the above-mentioned method is used to make the non-filtered water area, the surface screen can only be used to produce white watermarks with specific patterns. When it is necessary to produce another white watermark patterned paper, it is necessary to make a new non-filtering area on the surface of the new cylinder, and the original cylinder cannot be reused

Method used

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  • Security paper and its manufacturing method
  • Security paper and its manufacturing method
  • Security paper and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A security paper (such as image 3 shown), containing a white watermark pattern 8 on the surface of the security paper.

[0032] The safety paper in this embodiment contains the following raw materials in dry weight parts: 4 parts of cotton fiber and 1 part of anti-counterfeiting fiber 11; the anti-counterfeiting fiber used in this embodiment is colorless fluorescent fiber, and the papermaking fiber used is cotton fiber after beating; In this example, the strip material is a solid, straight edge, made of PU material.

[0033] A method of manufacturing security paper:

[0034] Step 1. Install the belt-shaped material operation synchronization device, which includes a drive device composed of a motor and a transmission system and a pulley wound with a belt-shaped material. The belt-shaped material is driven by a motor, and the motor controls the movement of the belt-shaped material and the cylinder synchronous operation;

[0035] Step 2. Adopting the traditional rotary...

Embodiment 2

[0039] A security paper containing a white watermark pattern 8 on the surface of the security paper.

[0040] The safety paper in this embodiment contains the following raw materials in dry weight parts: 4 parts of cotton fiber and 1 part of anti-counterfeiting fiber 11; the anti-counterfeiting fiber used in this embodiment is colorless fluorescent fiber, and the papermaking fiber used is cotton fiber after beating; In this example, the strip-shaped material is solid, with folded edges, and is made of PA containing metal fibers.

[0041] A method of manufacturing security paper:

[0042]Step 1. Install the belt-shaped material operation synchronization device, which includes a drive device composed of a motor and a transmission system and a pulley wound with a belt-shaped material. The belt-shaped material is driven by a motor, and the motor controls the movement of the belt-shaped material and the cylinder synchronous operation;

[0043] Step 2. Adopt the cylinder papermaki...

Embodiment 3

[0051] A security paper containing a white watermark pattern 8 on the surface of the security paper.

[0052] The safety paper of this embodiment contains the following raw materials in dry weight parts: 10 parts of flax fiber and 1 part of anti-counterfeiting fiber 11; the papermaking fiber used is beaten flax fiber; anti-counterfeiting pigment is used as one of the anti-counterfeiting materials and added to the slurry for papermaking ; In this example, the strip material is a strip material containing a hollow area 13, and the shape of the hollow area presents on the side surface is an irregular geometric figure and a regular geometric figure, and the edge of the strip material is a curve, and the material used is an alloy Copper material is used to make strip material.

[0053] A method of manufacturing security paper:

[0054] Step 1. Install the belt-shaped material operation synchronization device, which includes a drive device composed of a motor and a transmission sys...

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Abstract

The invention discloses safety paper, a safety paper manufacturing method and a movement synchronizing device for a strip material. The safety paper manufacturing method includes the steps that firstly, before fiber dispersion liquid is deposited on the surface of a mould, the strip material is attached to the surface of the mould and moves synchronously along with the mould; secondly, the fiber dispersion liquid is deposited in a strip-material area and a non-strip-material area on the surface of the mould to form wet paper sheets; thirdly, the wet paper sheets are torn off and transferred to the surface of a fourdrinier wire and are separated from the mould and the strip material, and the strip material continues moving synchronously along with the mould; fourthly, the strip materials are torn off from the surface of the mould from a preset position, and white watermarks are formed in areas, corresponding to the strip material, of the wet paper sheets. The movement synchronizing device, used in the safety paper manufacturing method, for the strip material is a drive device used for driving at least two belt wheels to drive the strip material to move synchronously along with the mould in the same direction as the mould. According to the safety paper manufacturing method, operation is convenient, production cost is reduced, production efficiency is high, and the safety paper manufactured through the method is good in anti-counterfeit effect.

Description

technical field [0001] The invention relates to a paper and a papermaking method, in particular to a safety paper and a manufacturing method thereof. Background technique [0002] As a traditional anti-counterfeiting technology, white watermark technology is a widely used first-line anti-counterfeiting technology. This technology has intuitive visual effects and high anti-counterfeiting performance. [0003] White watermark paper is mainly made by a cylinder paper machine. During the papermaking process, the pulp is deposited on the surface of the cylinder. Due to the processing on a specific part of the cylinder, the drainage of this specific area is lower than that of other areas. , so that the amount of fiber deposition in this specific area is less than that in other areas, forming a local micro-thinness. After the wet paper sheet is formed, observe the white watermark paper through projected light, and it can be observed that the area with less fiber deposition has high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F1/44D21H27/02
Inventor 王都义陆春宇
Owner KUNSHAN BANKNOTE PAPER
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