Synthesis technology of water-emulsion fluorescent pigment

A technology of fluorescent pigments and synthesis process, applied in the field of fluorescent pigments, can solve the problems of environmental protection, poor fluorescence, high viscosity of water-emulsion fluorescent pigments, etc.

Active Publication Date: 2010-07-28
HUANGSHAN JIAJIA FLUORESCENT MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the fluorescent pigments are in the form of solid powder. In the application fields such as textile slurry and paper coating, the solid powder products must be dispersed and sanded to make fluorescent pigment slurry before they can be used. Contains toxic and harmful chemical substances, which is neither convenient nor environmentally friendly; with more and more attention paid to environmental protection, water-emulsion fluorescent pigments have emerged as the times require, and water-emulsion fluorescent pigments can be directly applied to textile pulp, paper coatings, water-based Ink, fluorescent ink, etc., easy to use, no precipitation, no toxic and harmful substances, safe and environmentally friendly
[0003] The traditional synthesis process of water-emulsion fluorescent pigments is to directly emulsify the reaction raw materials, and the emulsion obtained by emulsification is directly added to the initiator to continue the reaction to obtain the finished water-emulsion fluorescent pigments. However, the water-emulsion fluorescent pigments prepared by this synthesis process Fluorescent pigments have high viscosity and poor fluorescence

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Table 1: Raw material ratio of fluorescent pigment in embodiment 1

[0017] raw material

weight

raw material

weight

Butadiene

62

Emulsifier

9.2

Styrene

38

Regulator

0.3

acrylic acid

7.2

Initiator

0.2

Deionized water

120

Fluorescent dyes

5.1

[0018] a. Emulsification process: Put deionized water and emulsifier into the emulsification kettle, heat to 60°C and dissolve completely, add reaction monomer butadiene, styrene, acrylic acid and fluorescent dye, stir evenly, and use high-shear emulsification head Emulsified to obtain the emulsion for subsequent use;

[0019] b, seed emulsion synthesis process: take 15% of the total amount of the standby emulsion to synthesize the seed emulsion, pump the 15% emulsion into the reaction kettle with a metering pump, stir, heat to 60-90°C, add an initiator to react, And control the reaction temperature between 60-90°C, and ...

Embodiment 2

[0023] Table 2: Raw material ratio of fluorescent pigment in embodiment 2

[0024] raw material

weight

raw material

weight

Methyl methacrylate

55

Emulsifier

8.7

Butyl methacrylate

45

Regulator

0.3

acrylic acid

7.9

Initiator

0.2

Deionized water

140

Fluorescent dyes

6.3

[0025] a. Emulsification process: Put deionized water and emulsifier into the emulsification kettle, heat to 50°C and dissolve completely, add reaction monomer methyl methacrylate, butyl methacrylate, acrylic acid and fluorescent dye, stir evenly, and emulsify 2 hours to get the emulsion for later use;

[0026] b, seed emulsion synthesis process: take 5% of the total amount of the standby emulsion to synthesize the seed emulsion, pump the 5% emulsion into the reaction kettle with a metering pump, stir, heat to 60-90°C, add an initiator to react, And control the reaction temperature between 60-90°C, a...

Embodiment 3

[0030] Table 3: Raw material ratio of fluorescent pigment in embodiment 3

[0031] raw material

weight

raw material

weight

Methyl methacrylate

67

Emulsifier

9.4

Acrylonitrile

33

Regulator

0.3

[0032] raw material

weight

raw material

weight

acrylic acid

8.6

Initiator

0.2

Deionized water

130

Fluorescent dyes

7.1

[0033] a. Emulsification process: put deionized water and emulsifier into the emulsification kettle, after heating and dissolving completely, add reaction monomer methyl methacrylate, acrylonitrile, acrylic acid and fluorescent dye, stir evenly, and emulsify to obtain emulsion for later use;

[0034] b, seed emulsion synthesis process: take 20% of the total amount of the standby emulsion to synthesize the seed emulsion, pump 20% of the emulsion into the reaction kettle with a metering pump, stir, heat to 60-90°C, add an initiator ...

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PUM

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Abstract

The invention relates to the field of fluorescent pigment, in particular to a synthesis technology of a water-emulsion fluorescent pigment, which mainly comprises an emulsification process, a seed emulsion polymerization process, a dropping reaction process and a post-treatment process; the invention comprises the following steps: firstly preparing emulsified liquid through the emulsification process, getting 5 to 20 percent of the total prepared emulsified liquid to synthesize the seed emulsion, then performing the dropping reaction process and the post-treatment process, so that the stability of the synthesis technology of the integrated water-emulsion fluorescent pigment can be ensured, thereby reducing the viscosity of the product and improving the transparency of resin and fluorescence of the product. Therefore, the water-emulsion fluorescent pigment prepared by the synthesis technology of invention has the advantages of low viscosity and high fluorescence.

Description

technical field [0001] The invention relates to the field of fluorescent pigments, in particular to a synthesis process of water-emulsion fluorescent pigments. Background technique [0002] Most of the fluorescent pigments are in the form of solid powder. In the application fields such as textile slurry and paper coating, the solid powder products must be dispersed and sanded to make fluorescent pigment slurry before they can be used. Contains toxic and harmful chemical substances, which is neither convenient nor environmentally friendly; with more and more attention paid to environmental protection, water-emulsion fluorescent pigments have emerged as the times require, and water-emulsion fluorescent pigments can be directly applied to textile pulp, paper coatings, water-based Ink, fluorescent ink, etc., easy to use, no precipitation, no toxic and harmful substances, safe and environmentally friendly. [0003] The traditional synthesis process of water-emulsion fluorescent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F236/10C08F212/08C08F220/06C08F220/14C08F220/18C08F220/46C08F220/56C08F2/24C08K5/00C09B67/46C09B67/34C09K11/06
Inventor 王济民唐礼亮汪崇建孙克明王剑秋丁习虎汪跃东汪海明
Owner HUANGSHAN JIAJIA FLUORESCENT MATERIAL
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