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Sunlight-resistant fluorescent coating emulsion and preparation method thereof

A fluorescent paint and emulsion technology, applied in the field of textile printing auxiliaries, can solve the problem of low light fastness

Inactive Publication Date: 2015-11-04
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the light fastness of the existing fluorescent paint for textile printing is not high, the present invention provides a formaldehyde-free fluorescent paint emulsion with high light fastness and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 10g allyltrimethylsilane, 210g methyl methacrylate, 33g acrylic acid, 25g acrylonitrile and 150g styrene into a 2000ml four-necked flask, and then add OP-10 and dodecylbenzenesulfonate Sodium 5g each, fluorescent dye No. 1 basic red 9.5g aqueous solution 1500ml, sheared at high speed in a high-speed shearing machine to make the system emulsified evenly, add 2.3g potassium persulfate while stirring, increase the temperature in the water bath, heat At 85°C, after 6 hours of reaction, the temperature is lowered to room temperature, and the red fluorescent paint emulsion is discharged to obtain the product. The transmission electron microscope test shows that the particle size distribution of the obtained coating emulsion is between 170-200 nm, and the product's light fastness reaches 7-8 grades.

Embodiment 2

[0014] 25g of allyltrimethylsilane, 150g of methyl methacrylate, 10g of acrylic acid, 10g of methacrylic acid, 50g of acrylonitrile and 270g of styrene were added to a 5000ml four-necked flask, and 3.6g of potassium persulfate was added while stirring. , then add 600ml of an aqueous solution containing 6g each of OP-10 and sodium dodecylbenzenesulfonate, and 6.5g of fluorescent dye No. 24 basic yellow, stir quickly to emulsify the system evenly, heat to 90°C, and react for 4 hours. Drop to room temperature, and discharge yellow-green fluorescent paint emulsion. The transmission electron microscope test shows that the particle size distribution of the obtained coating emulsion is between 160-190nm, and the product's light fastness reaches 7-8 grades.

Embodiment 3

[0016] Add 33g of allyltrimethylsilane, 230g of methyl methacrylate, 30g of methacrylic acid, 50g of acrylonitrile and 80g of styrene to a 2000ml four-necked flask, add 2.5g of potassium persulfate while stirring, and then add Then, the aqueous solution containing 6.5g of OP-10, 6.5g of sodium dodecylbenzene sulfonate, and 6.3g of fluorescent dye No. 7 basic violet was added for 400 minutes, and the system was quickly stirred to emulsify evenly, heated to 60 °C, and after 8 hours of reaction, it was reduced to At room temperature, the purple fluorescent emulsion product is discharged. The particle size distribution of the obtained coating emulsion is between 200-250nm, and the light fastness of the product is 7-8.

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Abstract

The invention discloses a sunlight-resistant fluorescent coating emulsion and a preparation method thereof. The invention relates to a sunlight-resistant fluorescent coating and a preparation method thereof, belonging to the field of printing auxiliaries of textile products. The sunlight-resistant fluorescent coating is obtained by emulsion polymerization reaction of allyltrimethylsilane, methyl methacrylate, acrylonitrile, acrylic acid, styrene and alkaline fluorescent dye under the action of water, an emulsifier and an initiator. The sunlight-resistant fluorescent coating has the characteristics of certain molecular weight and viscosity, as well as fastness to sunlight of 7-8 level. The sunlight-resistant fluorescent coating can be used for printing and arranging textiles. The sunlight-resistant fluorescent coating disclosed by the invention has excellent fluorescence and fastness to sunlight, and the system has no residual formaldehyde and can be used for printing textile products. After the textile products are printed by the coating, the textile has bright color and luster, excellent softness and good weatherability, does not contain harmful components to human bodies and environment, and has no special smell. The sunlight-resistant fluorescent coating disclosed by the invention is simple to operate; and compared with the same type of the product, the cost is low and the performance is good.

Description

technical field [0001] The invention belongs to the field of fabric printing auxiliaries, and relates to a type of formaldehyde-free fluorescent paint emulsion with high light fastness and a preparation method thereof. technical background [0002] Organic fluorescent pigments, also known as sunlight pigments, absorb light energy under sunlight, do not emit in the form of heat energy, but emit the absorbed energy in the form of low-frequency visible light, thereby presenting exceptionally bright colors. [0003] There are many preparation methods for fluorescent coatings. As described in patent CN1990613B, the UV-curable organic fluorescent coatings contain prepolymers, active monomers, organic fluorescent pigments, photoinitiators, dispersants, defoaming agents, leveling agents, adhesion enhancer, etc. , this type is mainly used for fluorescent paint coating on the surface of the display screen, can not be used for textile printing; patent CN103122192A, using fluorescent p...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/14C08F220/46C08F220/06C08F230/08C08F2/26C08F2/30D06P1/52
Inventor 霍东娟孙戒姚成
Owner NANJING UNIV OF TECH