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Formula of special praseodymium yellow pigment for ink and production method of special praseodymium yellow pigment

A praseodymium yellow material and production method technology, applied in chemical instruments and methods, applications, inks, etc., can solve the problems of light color development, wide particle size distribution, etc. Effect

Inactive Publication Date: 2014-12-10
山东陶正新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a formula and production method of a special praseodymium yellow material for ink, which is used to solve the defects of light hair color, wide particle size distribution and large particles after the praseodymium yellow material produced by the existing method is made into ink, and can be realized through the present invention. Meet the needs of inkjet, and by optimizing the type and quantity of mineralizers, the service life of the sagger is extended, and it is more environmentally friendly and energy-saving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Silica SiO 2 and zirconium dioxide ZrO 2 Pre-pass 250 mesh sieve; then according to silica SiO 2 33 parts, zirconium dioxide ZrO 2 67 parts of ingredients, premixed, airflow milled, processed to D50 of 7.5um, passed through a 500-mesh sieve; then according to the silicon dioxide SiO 2 and zirconium dioxide ZrO 2 100 parts of fine material, 5 parts of praseodymium oxide, 2 parts of NaCl, 1.5 parts of NaF, Na 2 SiF 6 1.5 parts of ingredients, mix evenly, put praseodymium oxide and mineralizer in the middle when adding materials; after mixing well, fire, control the maximum firing temperature at 900°C, and keep warm at 700-800°C for 1 hour;

[0033] After firing, it is broken, ball milled and washed with water. When washing, the control material: ball: water is 1:1.6:0.5. After washing 6 times, the conductivity of the colorant is reduced to 0.1mS / cm, dried, and air-jet milled to make D90 5.5 um, enter the sand mill, grind for 100 minutes, reach D50 of 0.45um, filt...

Embodiment 2

[0036] Silica SiO 2 and zirconium dioxide ZrO 2 Pre-pass 250 mesh sieve, and then according to the silicon dioxide SiO 2 32 parts, zirconium dioxide ZrO 2 68 parts of ingredients, pre-mixed, air-flow milled, processed to D50 of 6.8um, passed through a 500-mesh sieve; then according to the silicon dioxide SiO 2 and zirconium dioxide ZrO 2 100 parts of fine material, 5 parts of praseodymium oxide, 1 part of NaCl, 2 parts of NaF, Na 2 SiF 6 1.5 parts of ingredients, mix evenly, put praseodymium oxide and mineralizer in the middle when adding materials. After mixing well, fire, control the maximum firing temperature at 880°C, and keep it at 700-790°C for 1 hour;

[0037] After firing, it is broken, ball milled and washed with water. When washing, the control material: ball: water is 1:1.6:0.5. After washing 5 times, the conductivity of the pigment is reduced to 0.1mS / cm, dried, and air-jet milled to make D90 5.5 um, enter the sand mill, grind for 94 minutes, reach D50 of ...

Embodiment 3

[0040] Silica SiO 2 and zirconium dioxide ZrO 2 Pre-pass 250 mesh sieve, and then according to the silicon dioxide SiO 2 31.5 parts, zirconium dioxide ZrO 2 68.5 parts of ingredients, premixed, airflow milled, processed to D50 of 5.5um, passed through a 500-mesh sieve; then according to the silicon dioxide SiO 2 and zirconium dioxide ZrO 2 100 parts of fine material, 5 parts of praseodymium oxide, 1 part of NaCl, 2 parts of NaF, Na 2 SiF 6 1 part of ingredients, mix evenly, put praseodymium oxide and mineralizer in the middle when adding materials. After mixing well, fire, control the maximum firing temperature at 865°C, and keep it at 700-775°C for 1 hour;

[0041] After firing, it is broken, ball milled and washed with water. When washing, the control material: ball: water is 1:1.6:0.5. After washing 4 times, the conductivity of the pigment is reduced to 0.1mS / cm, dried, and air-jet milled to make D90 5.5 um, enter the sand mill, grind for 90 minutes, reach D50 to ...

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Abstract

The invention provides a formula of a special praseodymium yellow pigment for ink and a production method of the special praseodymium yellow pigment. The formula comprises the following raw materials: silicon dioxide, zirconium dioxide, praseodymium oxide and a mineralizer in a weight ratio of 33 to (66-75) to (4-6) to (2.5-4.5). The production method comprises the following steps: firstly, mixing silicon dioxide with zirconium dioxide in a proportion and processing till D50 is less than 10mu m by virtue of an airflow mill to obtain a mixed material; secondly, inputting praseodymium oxide and mineralizer into the mixed material to be uniformly mixed to obtain a mixture; then, feeding the mixture into a kiln to be calcined, and controlling the calcining temperature of the kiln at 870-900 DEG C according to the reaction temperature of the mineralizer; and by virtue of crushing, water-washing, drying and sieving, feeding the calcined product into the airflow mill to be processed till D90 is 4-6mu m, preparing ink by a sand mill till the grain size D50 is less than 0.5mu m, and carrying out color development comparison. The special praseodymium yellow pigment for ink, which is provided by the invention, is uniform in particle and deep in color development, the use level of the mineralizer is decreased, the service life of a sagger is prolonged, and in the water-washing process, the special praseodymium yellow pigment for ink is water-saving and energy-saving and environmentally friendly.

Description

[0001] technical field [0002] The invention relates to a special color material for ceramic ink-jet ink, in particular to a formula and a production method of a special praseodymium yellow material for ceramic ink-jet ink. [0003] Background technique [0004] With the development and popularization of ink-jet technology, ink-jet colorants have attracted widespread attention. The quality of inkjet colorant directly affects the effect of spray printing products. Praseodymium yellow ink accounts for the largest proportion in inkjet inks, but the praseodymium yellow material produced by the existing method is difficult to meet the requirements in terms of color development and particle size, and the ink produced is very light in color, wide in particle size distribution and problems such as large particles. As a result, in order to improve the color intensity of praseodymium yellow ink, some manufacturers continuously increase the types and quantities of mineralizers and ...

Claims

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Application Information

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IPC IPC(8): C09D11/322C09C1/00C09C3/06C04B41/85
CPCY02P20/10
Inventor 梁玉成王允强杨哲峰
Owner 山东陶正新材料科技有限公司