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Multiple anti-counterfeit watermark paper and manufacturing method thereof

A production method and watermarking technology, applied in papermaking, textile and papermaking, fiber raw material processing, etc., can solve the problems of reducing the anti-counterfeiting effect, lack of identification ability, etc., and achieve the effect of strengthening the concave and convex feeling

Active Publication Date: 2011-09-21
BAODING BANKNOTE PAPER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since its anti-counterfeiting effect can only be reflected in visual form, its anti-counterfeiting effect is reduced
In particular, counterfeiters have achieved the purpose of low-level counterfeiting through technical means such as printing, and the public does not have professional identification capabilities

Method used

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  • Multiple anti-counterfeit watermark paper and manufacturing method thereof
  • Multiple anti-counterfeit watermark paper and manufacturing method thereof
  • Multiple anti-counterfeit watermark paper and manufacturing method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0044] The preparation process of multiple anti-counterfeiting watermark paper of the present invention is as follows figure 2 As shown, it includes fiber raw materials (cotton, wood, hemp) through the steps of fine pulping, pulping, papermaking, drying, sizing, and drying, and finally paper is obtained. In the papermaking department, the paper with anti-counterfeiting information is placed The carrier is released in front of the paper machine wire and combined with the paper sheet; through the joint action of the water or temperature of the paper machine, the carrier dissolves or melts away, leaving only the pattern, pattern or embroidery formed by the non-water-soluble fiber or anti-counterfeiting fiber in the paper sheet. The lines give the paper a layered and concave-convex touch under transmitted light.

[0045] The carrier with anti-counterfeiting information is a film made of water-soluble material or hot-melt material, non-woven fabric or woven cloth as a carrier, and...

Embodiment 1

[0049] Water-soluble PVA fiber non-woven fabric is used as the carrier, the water-soluble temperature range is 25~90°C, the thickness is 25μm, and the width is 10mm. It has machine-embroidered patterns, patterns or lines on it. The pattern thickness is 25~75μm. The embroidery threads used are non-water-soluble fibers such as polyester. Embroidery thread can also adopt other natural plant fiber such as cotton thread, woolen thread, blended thread or its woven thread, animal fiber or its woven thread, synthetic fiber or its woven thread, or the mixed woven thread of above-mentioned fiber.

[0050] Spread the above-mentioned PVA fiber non-woven fabric embroidered with patterns in front of the paper machine net, position and spread, and the spraying amount is 5-100g / m 2 , such as 5g / m 2 , 20g / m 2 、40g / m 2 、60g / m 2 , 80g / m 2 or 100g / m 2 , and combined with wet paper on the rotary screen.

[0051] Realize the positioning and release of embroidery patterns or textile pattern...

Embodiment 2

[0053] With water-soluble PVA fiber non-woven fabric as the carrier, the water-soluble temperature range is 25~90℃, the thickness is 25μm, and the width is 2-25mm. The carrier is strip-shaped, and the width of the strip-shaped material is 2-20mm. It has machine-embroidered patterns, patterns or lines on it. The pattern thickness is 25~75μm. The embroidery thread used is PVA hot-melt fluorescent fiber, the melting temperature is 30~180°C, the concentration of phosphor powder in spinning stock solution or surface coating solution is 0.1%~80%, and it is made by blending or surface coating. The excitation wavelength is 400-800 nm.

[0054] The above-mentioned PVA fiber non-woven fabric embroidered with patterns is applied before the paper machine net, positioned and applied, and the applied amount is 10g / m 2 , and compounded with paper sheets in the twin cylinder forming section. Through the combined effect of water and temperature in the headbox of the paper machine, the carr...

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Abstract

The invention relates to multiple anti-counterfeit watermark paper and a manufacturing method thereof. The watermark paper is provided with patterns, figures or lines which are woven or embroidered by non-water-soluble fibers or anti-counterfeit fibers; and the paper has rich levels and a concavo-convex touch feel under transmission light. A film, non-woven fabric or woven fabric made from a water-soluble material or a hot-melting material is used as a carrier, so that the patterns, the figures or the lines are woven or embroidered on the carrier by using the non-water-soluble fibers or the anti-counterfeit fibers; and the carrier with the patterns, the figures or the lines is released in front of a paper machine net through a positioning and releasing device so that the carrier is combined with paper. Compared with the conventional watermark, the patterns, the figures or the lines of the watermark paper are more fine and smooth; meanwhile, during processing of the patterns, the anti-counterfeit fiber loaded with one or more pieces of anti-counterfeit information (such as fluorescence, color, temperature variation, photoluminescence, magnetism and the like) is adopted; therefore, the watermark is integrated with vision, touch and multiple anti-counterfeit effects of the anti-counterfeit material as well as combination of the vision, the touch and the multiple anti-counterfeit effects.

Description

technical field [0001] The invention relates to an anti-counterfeiting watermark paper with multiple anti-counterfeiting functions and a manufacturing method thereof. Specific parts, all or the periphery of the watermark paper have characteristics such as magnetism, fluorescence, temperature change, pressure sensitivity, photoluminescence, color, conductivity, or a combination of any of the above effects, and thus produce corresponding optical, "machine-readable" And other detection performance, can also make the relevant parts produce pressure-sensitive, heat-sensitive and other effects. The paper can be widely used in anti-counterfeiting fields such as securities, certificates, bills, confidential documents, etc., and can realize the integration of multiple anti-counterfeiting functions. The watermark paper manufacturing process can be produced on fourdrinier, unit net, and double cylinder paper machines, and can be compatible with and strengthen the security features of tr...

Claims

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Application Information

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IPC IPC(8): D21H21/40D21H21/44D21H21/48
Inventor 吴梅竹曹秀痕朱西赏刘永红彭立新李兵
Owner BAODING BANKNOTE PAPER CO LTD
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