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Golden effect pigment and production technology thereof

An effect pigment and production process technology, applied in the field of inorganic pigments, can solve the problems of complex production process, difficult to stabilize control, poor color concentration of golden effect pigments, etc., and achieve the effect of simple process, easy control, and large market economic value.

Active Publication Date: 2013-12-25
四川万圣通精密机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the above technical problems and provides a method that can solve the problem of poor color concentration of existing gold effect pigments, complicated production process and difficult stable control, specifically a gold effect pigment and its production process

Method used

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  • Golden effect pigment and production technology thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put the synthetic mica flakes into deionized water to make a suspension with a solid-to-liquid mass ratio of 1: (5-50), and then carry out the following three layers of metal oxide coating in sequence: the first layer, use inorganic acid Adjust the pH value of the above suspension to 1.6-2.5, and add TiCl with a concentration of 10%-30% 4 solution with a concentration of 50% SnCl 4 The solution was mixed well, and slowly added to the above suspension, TiCl 4 solution with SnCl 4 The volume ratio of the solution is (30-150):1. At the same time, the pH value of the process is adjusted with an inorganic base to keep it stable. The reaction temperature is controlled at 70-85°C. The total coating optical thickness is controlled at 150-170nm; the second layer, FeCl is added to the above reaction system 3 with AlCl 3 A mixed solution in which FeCl 3 Solution concentration is 50-120g / L, AlCl 3 Solution concentration is 100-300g / L, FeCl 3 with AlCl 3 The volume ratio o...

Embodiment 2

[0034] Take 50g of synthetic mica powder with a thickness of 10 microns and put it into deionized water to make a solid-liquid

[0035] The suspension ratio is 1:6, and then the first layer of metal oxide coating is started. The pH value of the above suspension is adjusted to 2.2 with hydrochloric acid, and the concentration of 20% TiCl 4 solution with a concentration of 50% SnCl 4 The solution is mixed well and evenly, the volume ratio is 50:1, and slowly added to the above suspension. At the same time, adjust the pH value of the process with NaOH solution to keep it stable at 2.2. The reaction temperature was controlled at 70°C. The optical thickness is controlled at 180nm.

[0036] For the second layer, add a mixed solution of 50g / L FeCl3 solution and 300g / LAlCl3 to the above reaction system, the volume ratio is 80:1, the pH value of the reaction system is controlled at 3.3, and the reaction temperature is controlled at 90°C. The optical thickness is controlled at 250nm...

example 3

[0040] Take 60g of synthetic mica powder with a thickness of 10 microns and a particle size of 555 microns to make a solid-liquid mass ratio of 1:

[0041] 50 suspension.

[0042] In the first layer, the pH value of the above suspension was adjusted to 2.0 with hydrochloric acid, and the concentration of 16% TiCl 4 solution with a concentration of 50% SnCl 4The solution is thoroughly mixed and the volume ratio is 100:1, slowly added to the above suspension. At the same time, adjust the pH value of the process with NaOH solution to keep it stable at 2.0. The reaction temperature was controlled at 75°C. The optical thickness is controlled at 150nm.

[0043] For the second layer, add a mixed solution of 50g / L FeCl3 solution and 300g / LAlCl3 to the above reaction system, the volume ratio is 100:1, the pH value of the reaction system is controlled at 3.3, and the reaction temperature is controlled at 90°C. The optical thickness is controlled at 230nm.

[0044] In the third lay...

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Abstract

The invention discloses a golden effect pigment and a production technology thereof. The pigment comprises an inner core and cladded metallic oxide, wherein the inner core is a tablet-shaped base material; the cladded metallic oxide comprises three layers, the first layer is a mixed layer of titanium dioxide and stannic oxide; the second layer is a mixed layer of iron trioxide and aluminium oxide; and the third layer is a mixed layer of titanium dioxide and stannic oxide. The production technology for the pigment comprises the following steps of: putting the tablet-shaped base material of the inner core into deionized water to prepare suspension of which the solid-liquid mass ratio is 1:(5-50); then, successively cladding the metallic oxide; after the three layers are cladded, stirring for 30min; washing and filtering; drying at the temperature of 100-200DEG C; and calcining at the temperature of 700-900DEG C to obtain a finished product. The pigment manufactured by the technology has the advantages of ultrastrong chroma, golden color and simple technology, is bright and gorgeous, is easy to control and is suitable for industrial production.

Description

technical field [0001] The invention relates to the field of inorganic pigments, in particular to a golden effect pigment and a production process thereof. Background technique [0002] The so-called effect pigments, also called luster pigments, mainly include two types, namely pearlescent pigments and metallic effect pigments. Among them, non-metallic pigments such as pearlescent pigments are called effect pigments. All of these pigments have small, thin platelets that are oriented in a parallel arrangement in the application system and thus exhibit a strong gloss effect. [0003] Most of the gold pigments (gold powder) in the past are brass alloys composed of copper, zinc and aluminum. It is tempered to eliminate internal stress, then crushed by dry ball milling, and finally classified by winnowing and polished. The processing technology of this kind of golden pigment is complicated, and it is flammable and explosive. At the same time, it is not resistant to acid and al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C3/06C09C1/00C09C1/40
Inventor 刘海洋贺小平段明华李英杰
Owner 四川万圣通精密机械制造有限公司
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