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Transparent nano-ferric 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 air pollution, inkjet failure, and application failure, and achieve the effect of good storage stability and good dispersion effect

Active Publication Date: 2019-06-28
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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  • Transparent nano-ferric oxide ink-jet color paste and preparation method thereof
  • Transparent nano-ferric oxide ink-jet color paste and preparation method thereof
  • Transparent nano-ferric oxide ink-jet color paste and preparation method thereof

Examples

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Effect test

Embodiment 1

[0041] Add 38.3% deionized water, 0.2% 1,3,5-tris(2-hydroxyethyl)-s-triazine, pH adjuster I 0.3% dimethylethanolamine, dispersant I 15% TEGO755W according to the weight ratio in Table 1 , 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 60min, and use a pump to transport the slurry to a horizontal sand mill. 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 is less than 5um, pump the semi-finished color paste into the dispersing tank, add the remaining dispersant II 3% TEGO755W, and put it in a high-speed disperser. After re-dispersing at 800r / min for 60min, the slurry was pumped to the rod-pin horizontal sand mill for fine grinding. At this time, 0.3um zirconium beads were used as the grinding medium, and the grinding was carried out until the size determined by t...

Embodiment 2

[0043] Add 46.3% deionized water, 0.2% 1,3,5-tris(2-hydroxyethyl)-s-triazine, pH adjuster I 0.3% dimethylethanolamine, dispersant I 5% BYK154 according to the weight ratio in Table 1 Mix with 7% BYK190, stir 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 pump the slurry to the horizontal Coarse grinding in a sand mill, using 0.7 zirconium beads as the grinding medium, grinding until the particle size of the color paste measured by the fineness scraper is less than 5um, pump the semi-finished color paste into the dispersing tank, add dispersant II 3% BYK190, After re-dispersing at 1000r / min for 75min in a high-speed disperser, pump the slurry to a pin-type horizontal sand mill for fine grinding. At this time, use 0.3um zirconium beads as the grinding medium, and grind until The color paste particle size determined by the particle size analyzer reaches D95<0.3μm, then...

Embodiment 3

[0045] According to the weight ratio of Table 1, add 46.3% deionized water, 0.2% 1,3,5-tris(2-hydroxyethyl)-s-triazine, pH adjuster I 0.3% dimethylethanolamine, dispersant I 5% Lubrizol The mixture of HPA320 and 7% Borchi Gen NA20 was stirred uniformly at a speed of 800r / min in a high-speed disperser, then 30% transparent iron oxide red pigment powder was added, and after dispersing at a high speed of 800r / min for 90min, the slurry was transported by a pump Go to a horizontal sand mill for rough grinding, use 0.8 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 dispersing tank, add dispersant Ⅱ3 %Lubrizol HPA320, after re-dispersing 90min at 1100r / min speed in high-speed disperser, use pump to transport color paste to rod-pin horizontal sand mill for fine grinding, at this time use 0.3um zirconium beads as grinding Medium, grind until the color p...

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Abstract

The invention relates to transparent nano-ferric oxide ink-jet color paste. The transparent nano-ferric oxide ink-jet color paste contains the following components in parts by weight: 30-35 parts of ferric oxide, 15-20 parts of a dispersing agent, 0.4-0.6 part of a pH adjuster, 0.2-0.4 part of a sterilizing agent and 45-55 parts of water. By utilizing a brand new processing process and equipment and a preferable color paste formula, the particle size of the color paste can reach the nanoscale, and the storage stability is good; and the color past is of a resin-free system, does not contain a solvent component, is environment-friendly and can be widely applied to various types of ink-jet coatings.

Description

technical field [0001] The invention belongs to the technical field of pigment paste preparation, in particular to a nano transparent iron oxide inkjet paste and a preparation method thereof. Background technique [0002] Pigments are the main coloring substances in nature. Pigments have high light fastness, weather fastness and solvent resistance. The color of pigments is bright and bright. Wide range of applications. [0003] As the printing industry promotes green printing to the height of national strategic development, water-based inkjet inks have more and more important application value. Generally, inkjet inks have 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 inks: one is pigment inkjet ink, and the other is dye inkjet ink; pigment inkjet ink is waterproof, sunscreen, and the printed image is saturated and bright in color. Strong texture, mainly used f...

Claims

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Application Information

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IPC IPC(8): C09D17/00
Inventor 胡宇赵磊张涛何贵平
Owner ZHEJIANG NAMEI MATERIAL TECH
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