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Pearlescent pigment dispersion formula and preparation method thereof

A pigment dispersion and pearl technology, applied in the direction of pigment slurry, can solve the problems of less addition and excellent performance, and achieve the effect of less addition, excellent performance and good compatibility

Inactive Publication Date: 2009-03-11
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's research and development of mica-based pearlescent pigments started relatively late, but through the unremitting efforts of scientific and technological workers, the product level of pearlescent pigments has developed rapidly, but so far, there is no excellent performance, less addition, and good compatibility. Sexual Pearlescent Pigments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1000 ml TiCl 4 Aqueous solution (100 g TiCl 4 ) at a rate of 5.0 ml / min at 65°C and a pH of 4.0 to a suspension of 1000 g of muscovite (particle diameters of approximately 5-10 microns) in 10,000 ml of demineralized water. About 1 hour Afterwards, the dosing rate of these two solutions was doubled. During the whole addition time, the pH was kept constant by simultaneous dropwise addition of 10% NaOH solution. After stirring for another 0.5 h, mica-supported TiO 2 , washed with water, dried at 120°C, and calcined at 900°C for 60 minutes to generate mica-supported titanium oxide. Hereinafter referred to as mica titanium.

Embodiment 2

[0051] 88 parts of mica titanium prepared in Example 1, 8 parts of flaky aluminum oxide by weight, colored pigments are 2 parts of C.I. Parts, 0.8 parts of potassium hydroxide are blended and stirred evenly.

Embodiment 3

[0053] 83 parts of mica titanium prepared in Example 1, 10 parts of flaky aluminum oxide, 5 parts of C.I. pigment black 7 (C.I.No.77266), 1 part of calcium stearate, 0.5 parts of potassium hydroxide and magnesium hydroxide by weight ratio Stir well.

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PUM

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Abstract

The invention relates to a formulation and a method for preparing pearlescent pigment dispersoid. The pigment dispersoid comprises the following components: muscovite load TiO2, Al2O3, colored pigment, dispersant and stabilizer, and the weight percentage ratio of the components is 75-90:5-20:3-5:1-2:0.04-2. The preparation method comprises the following steps of preparing muscovite load titanium oxide TiO2, adding the muscovite load titanium oxide to flaky alumina, the colored pigment, the dispersant and the stabilizer, blending and evenly stirring the components, wherein the weight percentage ratio of the muscovite load TiO2, the Al2O3, the colored pigment, the dispersant and the stabilizer is 75-90:5-20:3-5:1-2:0.04-2. The pearlescent pigment dispersoid has the advantages of excellent performance and small addition amount, and the muscovite load titanium oxide has good compatibility with the dispersant and the stabilizer.

Description

technical field [0001] The invention belongs to the field of pigment formulation and preparation thereof, in particular to a pearlescent pigment dispersion formulation and a preparation method thereof. Background technique [0002] Pearlescent pigment is a kind of translucent microflaky pigment that can produce pearlescent effect. Such pigments can be divided into two categories: natural and artificial. [0003] As early as the 1920s, this kind of pigments had been produced, and they were all made of fish scales at first. They were natural products, and the pearlescent pigments produced by this method were expensive. It is rarely used at present. In the early 1950s, it began to study and produce pearlescent pigments covered with iron oxide on mica sheets. Titanium dioxide-coated mica flakes are currently the most widely used pearlescent pigments. This pearlescent pigment is different from other general pigments and pigments. It produces color through the reflection and ref...

Claims

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Application Information

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IPC IPC(8): C09D17/00
Inventor 张瑜刘峻陈彦模陈龙张伟刘水平王新官
Owner DONGHUA UNIV