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Preparation method of high-brightness colored microspheres

A high-brightness and color technology, applied in the field of preparation of high-brightness colored microspheres, can solve the problems of glass microbeads with poor night-time reflective effect, low retro-reflection performance, solvent intolerant, etc., and achieve excellent color light effect and retro-reflection performance. The effect of improving and improving solvent resistance

Active Publication Date: 2021-04-06
浙江龙游道明光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the poor reflection effect of glass microspheres in the reflective paint coating in the prior art at night, the poor reflection effect of glass microspheres, the color layer of glass microspheres is easy to fall off, not resistant to solvents, not resistant to scratches, reverse Low reflection performance and other defects provide a new preparation method for high-brightness colored microspheres

Method used

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  • Preparation method of high-brightness colored microspheres
  • Preparation method of high-brightness colored microspheres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of high-brightness colored microspheres, the preparation method is as follows:

[0043] S1: Take the PET substrate 6 covered with PE film 5 on the surface, pretreat the PET substrate 6 with a guide roller at 150°C, then take the glass beads 1, and implant the glass beads 1 with a bead planting device the surface of the PE film 5, and make the glass microspheres 1 sink into the PE film 5, and the sinking range of the glass microspheres 1 is controlled at 30%;

[0044] S2: Take pigment A, polyester resin, epoxy resin A, isocyanate curing agent A, silane coupling agent, and ethyl acetate and mix them according to the weight ratio of 1:1:1.5:0.2:0.05:3.5 to obtain a mixed Coating A, using a dimple coating device to coat the mixed coating A on the surface of the glass microsphere 1, dry it at a temperature of 110°C, and place it at a temperature of 70°C for aging for 48 hours to form a color layer 2;

[0045] S3: The color layer 2 is placed in an enviro...

Embodiment 2

[0058] A preparation method of high-brightness colored microspheres, the preparation method is as follows:

[0059] S1: Take the PET substrate 6 covered with the PE film 5 on the surface, pretreat the PET substrate 6 with a guide roller at 230°C, then take the glass beads 1, and implant the glass beads 1 with a bead planting device the surface of the PE film 5, and make the glass microspheres 1 sink into the PE film 5, and the sinking range of the glass microspheres 1 is controlled at 50%;

[0060] S2: Take pigment A, polyester resin, epoxy resin A, isocyanate curing agent A, silane coupling agent, and ethyl acetate and mix them according to the weight ratio of 1:1:1.5:0.2:0.05:3.5 to obtain a mixed Coating A, using a dimple coating device to coat the mixed coating A on the surface of the glass microsphere 1, dry it at a temperature of 150°C, and place it at a temperature of 70°C for aging for 48 hours to form a color layer 2;

[0061] S3: Place the color layer 2 in an enviro...

Embodiment 3

[0074] A preparation method of high-brightness colored microspheres, the preparation method is as follows:

[0075] S1: Take the PET substrate 6 covered with PE film 5 on the surface, pretreat the PET substrate 6 with a guide roller at 190°C, then take the glass beads 1, and implant the glass beads 1 with a bead planting device the surface of the PE film 5, and make the glass microspheres 1 sink into the PE film 5, and the sinking range of the glass microspheres 1 is controlled at 40%;

[0076] S2: Take pigment A, polyester resin, epoxy resin A, isocyanate curing agent A, silane coupling agent, and ethyl acetate and mix them according to the weight ratio of 1:1:1.5:0.2:0.05:3.5 to obtain a mixed Coating A, using a dimple coating device to coat the mixed coating A on the surface of the glass microsphere 1, dry it at a temperature of 130°C, and place it at a temperature of 70°C for aging for 48 hours to form a color layer 2;

[0077] S3: The color layer 2 is placed in an enviro...

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Abstract

The invention discloses a preparation method of high-brightness color microspheres. The preparation method comprises the following steps: S1, implanting glass microspheres into the surface of a PE film; S2, preparing a mixed coating A, and coating the surfaces of glass beads with the mixed coating A to form a color layer; S3, coating the surface of the color layer with a metal layer; S4, preparing a mixed coating B, and coating the surface of the metal layer with the mixed coating B to prepare a composite reflective film; S5, taking the composite reflective film, peeling off the glass beads from the PET substrate and the PE film, and then grinding and separating the glass beads through a grinding roller to obtain colored particles; S6, mixing metal iron microspheres with color particles, and then performing high-speed ball milling to obtain color microspheres; and S7, screening the color microspheres to finally obtain the high-brightness color microspheres. The colored microspheres prepared by the invention not only have a colored reflective effect, but also have the best retroreflection performance, and finally, the glass microspheres in the reflective paint coating achieve an excellent colored light effect at night, so that the defects in the prior art are overcome.

Description

technical field [0001] The invention relates to reflective materials, in particular to a preparation method of high-brightness colored microspheres. Background technique [0002] The existing reflective paint is generally made of acrylic resin as the base material, mixed with a certain proportion of directional reflective material in a solvent, which belongs to a new type of reflective paint. The principle of reflective paint is to pass the irradiated light through reflective glass beads Reflected back into the human line of sight, forming a reflective effect. However, the reflective effect of reflective paint at night is very poor. Since the glass beads used are high-emissivity glass beads, the resin, pigment, and glass beads are mixed and sprayed and brushed to make a reflective paint coating. The focal position of the beads cannot be adjusted for optimal reflection, so the reflective paint coating is very poor at night. [0003] Part of the colored glass beads currently...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/33C09D163/00C09D167/00C09D7/63C09D133/04
CPCC09D5/004C09D163/00C09D7/63C08L67/00C08L33/04C08K5/54
Inventor 吴伟斌刘玫胡锋舒林飞苏国芳
Owner 浙江龙游道明光学有限公司
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