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Pigment comprising microelement additive and preparation method of pigment

A technology of trace elements and additives, applied in the direction of coating, etc., can solve the problems of uneven dispersion, affecting product quality, unstable color, etc., and achieve the effect of large dosage, good product effect and suitable for popularization and application

Inactive Publication Date: 2019-03-26
湖南嘉隆高新颜料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Problem 1: In the production process of iron oxide red (H133-Y), the color is unstable and fades quickly. Under different lighting conditions (referring to strong and weak light), the color is prone to change and the storage time also affects the stability of the color, especially It is easy to fade when applied to downstream products (such as paint) under strong light
[0005] Problem 2: Inhomogeneity is prone to occur in the dispersion, which will lead to undesirable phenomena such as wrinkles and / or local uplifts, which will affect product quality

Method used

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  • Pigment comprising microelement additive and preparation method of pigment

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preparation example Construction

[0027] The preparation method of the above-mentioned pigment with trace element additives comprises the following steps:

[0028] Step 1: Slowly inject dilute sulfuric acid into a reactor filled with iron, after the reaction is complete, dry or dry the obtained precipitate, and recycle to obtain pickling red;

[0029] Step 2: Grinding the above-mentioned acid-washed red and natural red respectively, and then collecting powder products respectively;

[0030] Step 3: Mix pickling red powder and natural red powder according to the formula ratio, stir evenly, and then transfer to the screw conveyor, and add dispersant and suspending agent uniformly in proportion during the conveying process, and the dispersant and suspending agent are powder shape or small granular state;

[0031] Step 4: Then transfer to a pulverizer for further mixing and pulverization. After 8-15 minutes, pass through a 3500-3800 mesh sieve to obtain the product and pack it.

[0032] Among them, the grinding ...

Embodiment 1

[0034] To produce 100kg of pigment, first weigh 4kg of natural red, 0.6kg of dispersant, and 0.4kg of suspending agent. Then follow the steps below:

[0035] Step 1: Slowly inject dilute sulfuric acid into a reactor filled with iron, and after the reaction is complete, dry the obtained precipitate to recover and obtain pickling red;

[0036] Step 2: Weigh 95 kg of the pickling red obtained above, then grind 95 kg of pickling red and 4 kg of natural red with a grinder with a grading sheet, and then use a gyrator to collect powder products;

[0037] Step 3: Mix the pickling red powder and natural red powder, stir evenly, then transfer to the screw conveyor, add 0.6kg dispersant and 0.4kg suspending agent evenly in proportion during the conveying process, the state of dispersant and suspending agent is the best Preferably in powder or small particle state;

[0038] Step 4: Transfer the mixture obtained in Step 3 into a pulverizer for further mixing and pulverization. After abou...

Embodiment 2

[0040] To produce 100kg of pigment, first weigh 3kg of natural red, 0.5kg of dispersant, and 0.5kg of suspending agent. Then follow the steps below:

[0041] Step 1: Slowly inject dilute sulfuric acid into a reactor filled with iron, and after the reaction is complete, dry the obtained precipitate to recover and obtain pickling red;

[0042] Step 2: Weigh 96 kg of the pickling red obtained above, then grind 96 kg of pickling red and 3 kg of natural red with a grinder with a grading sheet, and then use a gyrator to collect powder products;

[0043] Step 3: Mix the pickling red powder and natural red powder, stir evenly, then transfer to the screw conveyor, add 0.5kg dispersant and 0.5kg suspending agent evenly in the process of conveying, the state of dispersant and suspending agent is the best Preferably in powder or small particle state;

[0044] Step 4: Transfer the mixture obtained in Step 3 into a pulverizer for further mixing and pulverization. After about 12 minutes, p...

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Abstract

The invention discloses a pigment comprising a microelement additive and a preparation method of the pigment. The formula of the pigment comprises the following main components in percentage by mass:93-96% of pickling red, 2.6-5.4% of natural red, 0.5-1.2% of a dispersing agent and 0.3-0.6% of a suspending agent. The invention further discloses a preparation method of the pigment comprising the microelement additive, used for batch production of high-quality pigments. The pigment prepared by the ratio in the invention has excellent color stability, and is difficult to fade even if subjected to long-term strong light exposure. Moreover, compared with the prior art, the pigment disclosed by the invention has the advantage that wrinkles and local bulge are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of chemical production, in particular to a pigment with trace element additives and a preparation method thereof. Background technique [0002] Iron oxide red can be used in a wide range of colored cement, colored cement floor tiles, colored cement tiles, imitation glazed tiles, concrete floor tiles, colored mortar, colored asphalt, terrazzo, mosaic tiles, artificial marble and wall painting in the building materials industry. Iron oxide red can also be used for various paint coloring and protective substances, including water-based interior and exterior wall paints, powder coatings, etc.; it is suitable for oily paints including epoxy, alkyd, amino and other primers and topcoats, and can also be used for Toy paint, decorative paint, furniture paint, electrophoretic paint and enamels. [0003] However, in the actual production process, the existing technology uses the reaction of iron and dilute sulfuric ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/61C09D7/65C09D7/63
CPCC09D7/61C09D7/63C09D7/65
Inventor 刘显金
Owner 湖南嘉隆高新颜料有限公司
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