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Special cladding titanium dioxide for ink and preparation method of titanium dioxide

A technology of titanium dioxide and special packaging, applied in the direction of ink, chemical instruments and methods, applications, etc., can solve the problems of easy air bubbles, easy yellowing, complicated steps, etc., achieve excellent wettability and fluidity, uniform coating effect, The effect of great economic benefits

Active Publication Date: 2016-08-17
中钛集团焦作市裕盛钛业有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN 104477989 A discloses a preparation method of titanium dioxide for ink, that is, the coated titanium dioxide is filtered, dried, heat-treated, jet-pulverized and then subjected to organic surface treatment to finally obtain the product. The process is complex and the production efficiency is low. At the same time, these organic substances have problems such as easy air bubbles, high temperature resistance, easy yellowing, poor processing performance (mainly refining time) and poor storage performance (mainly the degree of coarseness of the pigment). , the titanium dioxide treated with it cannot be used in the production of high-grade ink

Method used

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  • Special cladding titanium dioxide for ink and preparation method of titanium dioxide
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  • Special cladding titanium dioxide for ink and preparation method of titanium dioxide

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preparation example Construction

[0032] Such as figure 1 As shown, the present invention discloses a special coated titanium dioxide for ink and a preparation method thereof, comprising the following steps:

[0033] (1) TiO 2 Rutile TiO without surface coating treatment 2 Firstly, coarse titanium dioxide powder is ground, and the ground titanium dioxide is classified by screening, and the particles with a particle size larger than the predetermined particle size are returned to the coarse grinding device for regrinding, and the particles meeting the predetermined particle size are used as the base material. In the coating, the screened titanium dioxide particles are dissolved in an organic solvent to make slurry, the organic solvent is at least one of ethanol or propylene glycol, and the concentration of the titanium dioxide slurry is 200-400g / L.

[0034] As an embodiment of the present invention, the grinding, screening and pulping of the titanium dioxide are carried out at normal temperature and pressure,...

Embodiment 1

[0051] First, take 1Kg of qualified TiO after screening 2 , slurried in 4 L of propylene glycol, prepared containing TiO 2 organic solution;

[0052] Next, after fully stirring, the organic slurry is filtered to obtain filtered crystal A;

[0053] Next, put 1 mol of aluminum isopropoxide into 100 mL of ethanol at normal temperature and pressure to prepare an organoaluminum sol, and stir the ethanol at the same time during the process of adding aluminum isopropoxide, the stirring speed is 80 rpm, and the stirring time is 30min.

[0054] Next, the filtered crystal A was sprayed into the organoaluminum sol through a nozzle, and 50 g of the filtered crystal A was put into 1 L of the organoaluminum sol and stirred.

[0055] Then, dry the fully contacted titanium dioxide and organoaluminum sol in a drying device, pass water vapor / hot water into the vent pipe 2, and adjust the flow rate of water vapor / hot water through the control switch to make the container The temperature in t...

Embodiment 2

[0058] First, take 1Kg of qualified TiO after screening 2 , slurried in 4 L of propylene glycol, prepared containing TiO 2 organic solution;

[0059] Next, add 50 mL of a surface treatment agent that satisfies the volume ratio into the organic slurry, and stir thoroughly for 20 minutes;

[0060] Then, after fully stirring, the organic slurry is filtered to obtain the filtered crystal A;

[0061] Next, put 1 mol of aluminum isopropoxide into 100 mL of ethanol at normal temperature and pressure to prepare an organoaluminum sol, and stir the ethanol at the same time during the process of adding aluminum isopropoxide, the stirring speed is 80 rpm, and the stirring time is 30min.

[0062] Next, the filtered crystal A was sprayed into the organoaluminum sol through a nozzle, and 100 g of the filtered crystal A was put into 1 L of the organoaluminum sol and stirred.

[0063] Then, dry the fully contacted titanium dioxide and organoaluminum sol in a drying device, pass water vapor...

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Abstract

The invention provides special cladding titanium dioxide for ink and a preparation method of the titanium dioxide. The preparation method includes adding organic solute into rutile titanium dioxide yet to be treated by surface treatment after screening to make pulp, adding surfactant into the titanium dioxide pulp, filtering the treated titanium dioxide and performing atomizing mixed cladding of organic alumina sol, adding special organosilicone of proper viscosity into the cladded titanium dioxide pulp for organic surface treatment, drying the cladded titanium dioxide pulp after surface treatment to obtain cladding crystal, and crushing the cladded crystal to obtain the product eventually. Reaction is mostly performed in the mild condition, the process is simple and the cladding titanium dioxide having more uniform cladding effect and high dispersion and stability in the organic solvent can be obtained. In addition, the titanium dioxide is good in luster, and weather-proof, and excellent in binding force, dispersion, wettability and mobility, so that cladded titanium dioxide can be used for producing high-end ink.

Description

technical field [0001] The invention relates to the technical field of production of titanium dioxide, in particular to a special-coated titanium dioxide for ink and a preparation method thereof. Background technique [0002] With the rapid development of packaging and publishing and printing industries at home and abroad, the market demand for inks will increase day by day. As a very important white pigment in inks, many properties and functions of titanium dioxide cannot be replaced by any other materials. Therefore, the amount of titanium dioxide used in ink will increase year by year, and the market application prospect is very broad. [0003] Titanium dioxide pigments used in inks or similar systems should have excellent pigment performance, and the ideal properties are high gloss in oily systems and good dispersibility in oily systems. In order to improve the gloss and dispersibility of the application in the oily system, the usual practice is to coat the titanium dio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/037C09C1/36C09C3/04C09C3/06C09C3/08C09C3/12
CPCC09C1/3607C09C1/3623C09C1/3661C09C1/3669C09C1/3684C09C1/3692C09C3/006C09D11/037
Inventor 徐春长
Owner 中钛集团焦作市裕盛钛业有限公司
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