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Preparation method of pearl lusting printing ink for printing

A pearlescent ink and reaction system technology, applied in the field of printing inks, can solve the problems of affecting the color effect of fluorescent mica pearlescent pigments, interfering with the crystallization process of fluorescent materials, etc., and achieve the effects of excellent pearlescent luster, pure color and high brightness

Inactive Publication Date: 2015-04-29
ANHUI MEIXIANG PLASTIC
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AI Technical Summary

Problems solved by technology

The titanium dioxide and alkaline earth metal oxide composite pearlescent pigment prepared by this method shows good yellowing stability. On this basis, the pearlescent pigment prepared by the surface modification method is due to the addition of mica powder and the introduction of impurity ions by high temperature treatment. It interferes with the crystallization process of fluorescent materials, and ultimately affects the color effect of fluorescent mica pearlescent pigments

Method used

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Embodiment 1

[0012] A preparation method for printing pearl ink, comprising the steps of:

[0013] (1) Pigment preparation: Weigh 50 g of fluorine phlogopite, make it into a suspension with a weight ratio of 10wt%~12wt%, turn on the stirrer and stir at 400r / min, heat in a water bath to make the temperature of the reaction system 78°C, adjust with dilute hydrochloric acid The pH of the reaction system is 2.0. After the pH is stable, turn on the peristaltic pump and add 100mL 2mol / L titanium tetrachloride solution at a constant rate of 0.3mL / min, and add 4mol / L alkaline solution through the pH control system and metering pump to maintain the pH of the system. After adding the titanium tetrachloride solution, continue to stir for 30 minutes, suction filter, wash, and dry for use; prepare a mixed solution of 2mol / L calcium nitrate and corresponding stoichiometric ratio of praseodymium nitrate. Weigh 20 g of the above pearlescent pigment and add distilled water to form a suspension with a we...

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PUM

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Abstract

The invention discloses a preparation method of a pearl lusting printing ink for printing. The method adopts liquid phase deposition, a titanium dioxide layer and a praseodymium-doped calcium hydroxide layer are wrapped on the surface of a mica base material, and a praseodymium-doped calcium titanate fluorescent layer is generated between the two layers through high-temperature calcination. The scheme adopts secondary liquid phase deposition, titanium dioxide and praseodymium-doped calcium hydroxide are deposited on the surface of the mica base material, praseodymium-doped calcium titanate is generated on the surface of the mica base material through high-temperature calcinations, and an inorganic function pearl lusting paint with fluorescent effect is prepared. The titanium dioxide layer enables the pearl lusting paint to be excellent in pearl lusting luster, and also can prevent complicated ions in mica from entering the fluorescent layer to reduce the fluorescent effect.

Description

technical field [0001] The invention relates to the field of printing inks, in particular to a method for preparing pearlescent inks. Background technique [0002] Pearlescent pigment is an inorganic functional pigment with excellent performance, which has a unique luster similar to natural pearls, so it is very popular. The liquid phase deposition method is widely used in the preparation of pearlescent pigments because of its low preparation cost and excellent performance. In recent years, the preparation of functionalized pearlescent pigments by this method has attracted great attention. The titanium dioxide and alkaline earth metal oxide composite pearlescent pigment prepared by this method shows good yellowing stability. On this basis, the pearlescent pigment prepared by the surface modification method is due to the addition of mica powder and the introduction of impurity ions by high temperature treatment. It interferes with the crystallization process of fluorescent m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/037
CPCC09D11/037
Inventor 杨雪梅王维佳
Owner ANHUI MEIXIANG PLASTIC
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