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A kind of nano transparent iron oxide ink-jet color paste and preparation method thereof

A technology of transparent iron oxide and iron oxide, applied in the direction of pigment slurry, etc., can solve the problems of unreachable inkjet, air pollution, and inapplicability, and achieve good dispersion effect and good storage stability

Active Publication Date: 2021-07-16
ZHEJIANG NAMEI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] CN102838903B discloses a special nanoscale iron oxide color paste for cigarette packs and its preparation method, which is composed of 20-40% iron oxide pigment, 20-30% resin, 2-10% dispersant, 2-6% Wetting agent, 0.1-1% anti-sedimentation agent, 0.2-1% thickener and 25-55% solvent, this color paste has the advantages of fast drying time, good transparency and luster, but the ink can only be granular The diameter is only controlled at 20μm, which cannot be applied to the inkjet industry that requires higher particle size
[0008] CN103387770B discloses a method for preparing water-oil universal nano-transparent iron oxide red slurry, the basic formula of which is: 10%-35% deionized water, 3%-10% co-solvent, 1%-3% surface treatment agent, dispersion Resin 15%-25%, wetting and dispersing agent 8%-20%, PH value regulator 0.1%-0.6%, transparent iron oxide red 20%-40%, thickening and anti-sedimentation agent 0.1%-1.0%, bactericide 0.1% to 0.3%, defoamer 0.2% to 1%; the nano-transparent iron oxide red paste has the characteristics of storage stability, transparency, compatibility, and environmental protection. It can replace metal complex dyes and is widely used in Water-based or oil-based wood paints, automotive paints, plastic paints, metal paints, architectural paints, children's toys, painting materials, high-temperature glass inks and other fields, but the particle size control of this color paste is D50<1μm, which has not yet reached the use of inkjet industry Requirements, and a large amount of resin is used in this scheme, which increases the discharge of VOC, pollutes the air, and is easy to cause harm to the environment and human body
[0009] CN101747689B discloses an iron oxide red water-based color paste for wood coatings and a preparation method thereof. The weight percentage is composed of: iron oxide red pigment 50-70, surface modifier 0.5-2.0, wetting and dispersing agent 2.0-8.0, Foaming agent 0.5-2.0, thickener 0.05-0.2, thixotropic agent 0.5-2.0, preservative 0.1-0.5, water 20-40; the color paste has strong tinting power, stable color strength, high thixotropy, and stable storage , does not contain resin, is compatible with various polymer emulsions, and is environmentally friendly, but the color paste has a solid content of ≥60% and a fineness of <20 μm, so it cannot be used in the inkjet industry

Method used

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  • A kind of nano transparent iron oxide ink-jet color paste and preparation method thereof
  • A kind of nano transparent iron oxide ink-jet color paste and preparation method thereof
  • A kind of nano transparent iron oxide ink-jet color paste and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] According to the weight ratio in Table 1, add 38.3% deionized water, 0.2% 1,3,5-tris(2-hydroxyethyl)-s-triazine, pH regulator I 0.3% dimethylethanolamine, dispersant I 15% TEGO755W After stirring evenly at a speed of 600r / min in a high-speed disperser, add 35% transparent iron oxide red pigment powder, disperse at a high speed of 800r / min for 60 minutes, and then use a pump to transport the slurry to a horizontal sand mill for further processing. Coarse grinding, using 0.6 zirconium beads as the grinding medium, grinding until the particle size of the color paste measured by the fineness scraper meter is less than 5um, pump the semi-finished color paste to the dispersion tank, add the remaining dispersant II 3% TEGO755W, in the high-speed disperser After re-dispersing for 60 minutes at a speed of 800r / min, use a pump to transport the color paste to a pin-pin horizontal sand mill for fine grinding. At this time, use 0.3um zirconium beads as the grinding medium, and grind ...

Embodiment 2

[0043] According to the weight ratio in Table 1, add 46.3% deionized water, 0.2% 1,3,5-tris(2-hydroxyethyl)-s-triazine, pH regulator I 0.3% dimethylethanolamine, dispersant I 5% BYK154 and 7% BYK190 mixture, after stirring evenly at a speed of 700r / min in a high-speed disperser, add 30% transparent iron oxide red pigment powder, disperse at a high speed of 700r / min for 75min, and use a pump to transport the slurry to a horizontal Coarsely grind in a sand mill, use 0.7 zirconium beads as the grinding medium, grind until the particle size of the color paste measured by the fineness scraper is less than 5um, pump the semi-finished color paste to the dispersion tank, add dispersant II 3% BYK190, After re-dispersing for 75 minutes at a speed of 1000r / min in a high-speed disperser, use a pump to transport the color paste to a pin-pin horizontal sand mill for fine grinding. At this time, use 0.3um zirconium beads as the grinding medium and grind until After the particle size of the c...

Embodiment 3

[0045] According to the weight ratio in Table 1, add 46.3% deionized water, 0.2% 1,3,5-tris(2-hydroxyethyl)-s-triazine, pH regulator I 0.3% dimethylethanolamine, dispersant I 5% Lubrizol The mixture of HPA320 and 7% Borchi Gen NA20 is stirred evenly in a high-speed disperser at a speed of 800r / min, then 30% transparent iron oxide red pigment powder is added, dispersed at a high speed of 800r / min for 90min, and the slurry is transported by a pump Go to a horizontal sand mill for coarse grinding, using 0.8 zirconium beads as the grinding medium, and grind until the particle size of the color paste measured by the fineness scraper is less than 5um, then pump the semi-finished color paste to the dispersion tank, and add dispersant Ⅱ3 %Lubrizol HPA320, after re-dispersing for 90 minutes at a speed of 1100r / min in a high-speed disperser, use a pump to transport the slurry to a pin-type horizontal sand mill for fine grinding, at this time use 0.3um zirconium beads as grinding Medium,...

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Abstract

A nano-transparent iron oxide inkjet color paste, which is composed of iron oxide, dispersant, pH regulator, bactericide and water, calculated in parts by weight of raw materials: 30-35 parts of iron oxide; 15-20 parts of dispersant; pH 0.4~0.6 parts of conditioner; 0.2~0.4 parts of bactericide; 45~55 parts of water; the invention adopts new processing technology and equipment and optimized color paste formula, the particle size of color paste can reach nanometer level, good storage stability, color paste It adopts a resin-free system and solvent-free components, which is environmentally friendly and can be widely used in various types of inkjet coatings.

Description

technical field [0001] The invention belongs to the technical field of pigment color paste preparation, and in particular relates to a nano transparent iron oxide inkjet color paste and a preparation method thereof. Background technique [0002] Pigment is the main coloring substance in nature. Pigment has high light fastness, weather fastness and solvent resistance. The color of pigment is bright and bright. It has been widely used in textile, paper making, construction, food, plastic, metal spraying and other fields. Wide range of applications. [0003] As the printing industry promotes green printing to the height of national strategic development, water-based inkjet ink has more and more important application value. Generally, inkjet ink has a pH value of 7-12, a viscosity of 20-40CP, and a surface tension of 35-55MN / M. , particle size 200-1000nm and other requirements; there are two types of inkjet ink: one is pigment inkjet ink, the other is dye inkjet ink; pigment in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00
Inventor 胡宇赵磊张涛何贵平
Owner ZHEJIANG NAMEI MATERIAL TECH
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