Transparent nano-ferric oxide ink-jet color paste and preparation method thereof

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...

Examples

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...

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...

Examples

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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