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Photochromic pigment composition and preparation method thereof, plastic master batch and plastic workpiece

A technology for pigment composition and plastic workpieces, applied in the field of pigments, can solve problems such as poor color-dependent effects, and achieve the effects of high integrity, large particle size, and expanded application range

Pending Publication Date: 2021-04-02
HUIZHOU FORYOU OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application mainly provides an optically variable pigment composition, which applies the optically variable pigment to the spray-free process to solve the problem of poor color-dependent effect in spray-free materials

Method used

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  • Photochromic pigment composition and preparation method thereof, plastic master batch and plastic workpiece
  • Photochromic pigment composition and preparation method thereof, plastic master batch and plastic workpiece
  • Photochromic pigment composition and preparation method thereof, plastic master batch and plastic workpiece

Examples

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preparation example Construction

[0032] refer to figure 1 , figure 1 It is a schematic flow diagram of an embodiment of a preparation method of an optically variable pigment composition provided by the present application, including:

[0033] S101: mixing the dispersant with the solvent to obtain a premix;

[0034] S102: adding the optical variable pigment and the lubricant into the premix, and mixing uniformly to obtain a mixture;

[0035] S103: Separating the mixture into solid and liquid, removing the solvent, and obtaining an optically variable pigment composition.

[0036] Wherein, if the pigment auxiliary agent also includes a coupling agent, then in step 101, the coupling agent and the dispersant are added into the solvent and mixed uniformly to obtain a premix. It should be noted that, when mixing, the sequence of addition does not affect the properties of the final optically variable pigment composition. The preparation method also includes weighing each component according to the formulation amo...

Embodiment 1

[0038] A kind of optically variable pigment composition, applied to the spray-free coating process, comprises the following components by parts by weight:

[0039] Light variable pigment 50 parts

[0040] Lubricant 10 parts

[0041] dispersant 3 parts

[0042] Among them, the optical variable pigment is the optical variable pigment of Huayang Optical, the particle size Dv50 is about 35 microns; the lubricant is methyl silicone oil; the dispersant is zinc stearate.

[0043] A preparation method of an optically variable pigment composition, comprising:

[0044] Add the dispersant to the ethanol solvent, stir for 5-10 minutes, and mix evenly to obtain a premix; add optical variable pigments and lubricants to the premix, and stir for 30 minutes to obtain a mixture; filter the mixture with suction , solid-liquid separation, solvent removal, and drying the filter cake to obtain optical variable pigment composition 1.

Embodiment 2

[0046] A kind of optically variable pigment composition, applied to the spray-free coating process, comprises the following components by parts by weight:

[0047] Light variable pigment 50 parts

[0048] Lubricant 5 parts

[0049] dispersant 3 parts

[0050] The optical variable pigment is the optical variable pigment of Huayang Optical, the particle size Dv50 is about 14 microns; the lubricant is methyl silicone oil; the dispersant is ethylene bis stearic acid amide EBS.

[0051] A preparation method of an optically variable pigment composition, comprising:

[0052] Add the dispersant to the ethanol solvent, stir for 5-10 minutes, and mix evenly to obtain a premix; add the pretreated optical variable pigment and lubricant to the premix, and stir for 30 minutes to obtain a mixture; mix the mixture performing suction filtration, solid-liquid separation, solvent removal, and drying the filter cake to obtain optically variable pigment composition II.

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Abstract

The invention discloses a photochromic pigment composition and a preparation method thereof, a plastic master batch and a plastic workpiece. The photochromic pigment composition is applied to a spraying-free process. The photochromic pigment composition comprises a photochromic pigment and a pigment auxiliary agent, and the pigment auxiliary agent at least comprises a lubricant and a dispersing agent. The photochromic pigment composition disclosed by the invention is applied to a spraying-free process, so that structural damage of the photochromic pigment caused by high shearing force and extrusion in a spraying-free injection molding process of the photochromic pigment is avoided, the photochromic pigment subjected to injection molding is high in structural integrity and large in particlesize, the photochromic pigment can well display a good angle-dependent optical effect in an injection molded part after injection molding, the application range of the photochromic pigment is expanded, and the application universality of the photochromic pigment in a spraying-free material is improved.

Description

technical field [0001] The present application relates to the field of pigments, in particular to an optically variable pigment composition and a preparation method thereof, a plastic masterbatch and a plastic workpiece. Background technique [0002] The spray-free process achieves the effect similar to painting on the surface of the workpiece while realizing the molding of the plastic workpiece through direct injection molding. The production efficiency can be greatly improved, environmental pollution can be avoided, and production costs can be reduced through spray-free technology. With the strengthening of national and public awareness of environmental protection, spray-free technology has been increasingly valued by the industry. From raw materials, plastic formula, mold design, to injection molding process, the upstream and downstream of the industrial chain actively develop spray-free technology and processes, which greatly promotes the application of spray-free techn...

Claims

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Application Information

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IPC IPC(8): C08K3/013C08L55/02C08L83/04C08K5/098C08K5/20C08K5/54C08K9/00C08J3/22
CPCC08K3/013C08K5/098C08K5/20C08K5/54C08L83/04C08L55/02C08J3/226C08K2201/005C08L2205/03C08J2483/04C08L23/06C08K9/00
Inventor 吴伟才龙芬
Owner HUIZHOU FORYOU OPTICAL TECH
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