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Cladded fluorescent pigment and compound color-changing pressure-sensitive fluorescent paint

A fluorescent pigment and coating technology, which is applied in the field of composite color-changing pressure-sensitive fluorescent coatings, can solve problems such as poor adhesion and coating leakage, improve reliability and safety, reduce additives, and improve particle size distribution Effect

Active Publication Date: 2017-05-10
天津环球磁卡科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reasons: 1. Due to the limitations of the materials in the existing technology, these three anti-counterfeiting materials must first achieve their respective minimum addition amounts if they want to show their respective anti-counterfeiting effects, and then consider the influence of wavelengths between materials
The resin system of the prior art cannot solve the problems of pigment sedimentation and pigment dispersion brought about by improving the composite anti-counterfeiting effect. The offset printing material is transferred to the printing substrate, but the resulting coating has technical defects such as color leakage and poor adhesion, which cannot be applied in production

Method used

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  • Cladded fluorescent pigment and compound color-changing pressure-sensitive fluorescent paint
  • Cladded fluorescent pigment and compound color-changing pressure-sensitive fluorescent paint
  • Cladded fluorescent pigment and compound color-changing pressure-sensitive fluorescent paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A color developer coated fluorescent pigment, the preparation method of which is as follows:

[0026] (1) Preparation of water-based resin mixture: put 94 parts of distilled water and 1 part of defoamer into a round-bottomed flask, stir at a speed of 120 rpm, and slowly raise the temperature of distilled water to 90°C, add 5 parts of polyethylene Add the alcohol particles into the flask, stir for 20-30 minutes, and wait until the solid particles are all dissolved, and the preparation of the water-based resin mixture is completed;

[0027] Among them, the polyvinyl alcohol is z-200 produced by Japan Synthetic Chemical Company or 1799 produced by Sinopec Corporation, and the defoamer is W-0506 (modified polysiloxane emulsion) produced by British Hemings Company.

[0028] (2) Preparation of coating agent: at room temperature, put 80 parts of resin developer and 18 parts of distilled water into a beaker, stir at a speed of 120 rpm, after stirring evenly, add 1 part of subst...

Embodiment 2

[0040] A color developer coated fluorescent pigment, the preparation method of which is as follows:

[0041](1) Preparation of water-based resin mixture: Preparation of water-based resin mixture: put 89 parts of distilled water and 1 part of defoamer into a round bottom flask, stir at a speed of 120 rpm, and slowly heat up the distilled water to 90 ℃, add 10 parts of polyvinyl alcohol particles into the flask, stir for 20-30 minutes, and wait until all the solid particles are dissolved, the preparation of the water-based resin mixture is completed;

[0042] Among them, the polyvinyl alcohol is z-200 produced by Japan Synthetic Chemical Company or 1799 produced by Sinopec Corporation, and the defoamer is W-0506 (modified polysiloxane emulsion) produced by British Hemings Company.

[0043] (2) Preparation of coating agent: at room temperature, put 87 parts of resin developer and 11 parts of distilled water into a beaker, stir at a speed of 120 rpm, after stirring evenly, add 1 p...

Embodiment 3

[0052] A color developer coated fluorescent pigment, the preparation method of which is as follows:

[0053] (1) Preparation of water-based resin mixture: Preparation of water-based resin mixture: Put 84 parts of distilled water and 1 part of defoamer into a round bottom flask, stir at a speed of 120 rpm, and slowly heat up the distilled water to 90 ℃, add 15 parts of polyvinyl alcohol particles into the flask, stir for 20-30 minutes, and wait until all the solid particles are dissolved, the preparation of the water-based resin mixture is completed;

[0054] Among them, the polyvinyl alcohol is z-200 produced by Japan Synthetic Chemical Company or 1799 produced by Sinopec Corporation, and the defoamer is W-0506 (modified polysiloxane emulsion) produced by British Hemings Company.

[0055] (2) Preparation of coating agent: at room temperature, put 95 parts of resin developer and 4 parts of distilled water into a beaker, stir at a speed of 120 rpm, after stirring evenly, add 1 p...

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Abstract

The invention provides a color developing agent cladded fluorescent pigment and a compound color-changing pressure-sensitive fluorescent paint containing the fluorescent pigment. The fluorescent pigment is formed by cladding modified zinc salicylate resin as a color developing agent on the surface of the fluorescent pigment. Compared with the prior art, the cladded fluorescent pigment, a preparation method of the cladded fluorescent pigment and the compound color-changing pressure-sensitive fluorescent paint provided by the invention have the advantages that firstly, the adding amount of an anti-fake material can be reduced, and the technical problems of sedimentation and dispersion of the pigment in a printing ink system are improved; secondly, the particle size distribution of the fluorescent pigment is improved, and the fineness of the printing ink is reduced; and thirdly, during pressure-sensitive printing with the printing ink, a color former reacts with the color developing agent, prints are generated and do not disappear, different visual fluorescent effects can be displayed under the excitation of short wave ultraviolet light and near infrared light, and besides, multiple anti-fake functions are achieved, so that the reliability and safety of printed products are further improved, and economic benefits and social benefits are exetremely high.

Description

technical field [0001] The invention belongs to the field of printing inks, and in particular relates to a composite color-changing pressure-sensitive fluorescent paint (ink) coated with fluorescent pigments and the pigments. Background technique [0002] Fluorescent pigments are divided into ultraviolet excited fluorescent pigments and infrared excited fluorescent pigments. Ultraviolet-excited fluorescent pigments are pigments that exhibit fluorescent colors under the excitation of ultraviolet light with a wavelength of 254nm or 365nm; infrared-excited fluorescent pigments are pigments that exhibit fluorescent colors under the excitation of infrared light with a wavelength of 980nm. These two types of fluorescent pigments are used Simple, safe and reliable, it can be widely used in the field of fluorescent anti-counterfeiting. [0003] Offset printing is an anti-counterfeiting technology in which the color developer and the color developer capsule are in contact, and under...

Claims

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Application Information

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IPC IPC(8): C09K11/02C09D11/037C09D11/50
CPCC09D11/037C09D11/50C09K11/025
Inventor 赵贵彬杜金鹏鲁涛韩婧
Owner 天津环球磁卡科技有限公司
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