A kind of fluorescent pigment powder and preparation method thereof
A technology of fluorescent pigments and fluorescent dyes, applied in the field of fluorescent organic pigments, can solve problems such as poor dispersion performance, easy agglomeration, affecting the quality of oil phase substances and the color of the final product, and achieves the effect of simple preparation methods
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Embodiment 1
[0024] A kind of fluorescent pigment powder, its preparation process is as follows figure 1 As shown, the specific preparation method is as follows:
[0025] Put 10g of dodecyl glycidyl ether into a four-necked flask, put 90g of melamine, 5g of urea and 20g of paraformaldehyde into the four-necked flask, heat to 98°C, the powder gradually melts, continue to maintain the temperature for 2 hours, add alkali Red 270.625g, stir evenly, take the four-necked flask from the iron stand, put it in an oven to dry at 100°C for 10 h, and take it out after the four-necked flask is cooled. At this time, the melamine resin in the four-necked flask became fluffy and hollow, and the melamine-formaldehyde resin in the four-necked flask was hooked out with a steel wire, and the colored resin was powdered with a powder machine, and then the powder was further pulverized with a jet mill to obtain a red Fluorescent pigment powder.
Embodiment 2
[0027] A kind of fluorescent pigment powder, its preparation method is as follows:
[0028] Put 16.7g of hexadecyl glycidyl ether into a four-necked flask, 1000g of melamine, 50g of urea, 100g of p-toluenesulfonamide and 500g of paraformaldehyde into the four-necked flask, heat to 90°C, the powder gradually melts, and continue to keep Temperature reaction for 6 h, add 33.33 g of Basic Red 27, stir evenly, take the four-neck flask from the iron stand, put it in an oven for 5 h at 120°C, and take out the four-necked flask after cooling down. At this time, the melamine resin in the four-necked flask became fluffy and hollow, and the melamine-formaldehyde resin in the four-necked flask was hooked out with a steel wire, and the colored resin was powdered with a powder machine, and then the powder was further pulverized with a jet mill to obtain a red Fluorescent pigment powder.
Embodiment 3
[0030] A kind of fluorescent pigment powder, its preparation method is as follows:
[0031] Put 141.17g of isooctyl glycidyl ether into a four-necked flask, put 500g of melamine, 100g of p-toluenesulfonamide and 200g of paraformaldehyde into the four-necked flask, heat to 110°C, the powder gradually melts, and continue to maintain the temperature for 3 hours , add 23.33g of basic red 2, stir evenly, take the four-necked flask from the iron stand, put it in an oven and dry it at 120°C for 6 h, and take it out after the four-necked flask is cooled. At this time, the melamine resin in the four-necked flask became fluffy and hollow, and the melamine-formaldehyde resin in the four-necked flask was hooked out with a steel wire, and the colored resin was powdered with a powder machine, and then the powder was further pulverized with a jet mill to obtain a red Fluorescent pigment powder.
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