Preparation method of pigment used for nitrocotton solvent ink

A technology of nitrocellulose and solvents, applied in chemical instruments and methods, inks, applications, etc., can solve problems such as increased viscosity, and achieve the effects of high transparency, low viscosity, and high gloss

Active Publication Date: 2012-01-11
LONGKOU UNION CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For conventional pigments, when the gloss, transparency and streng...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Add 98 parts by weight of hydrochloric acid to 800 parts by weight of water, add 60 parts by weight of 3,3'-dichlorobenzidine and beat for 90 minutes, add ice to cool down below -3 degrees, quickly add 132 parts by weight of sodium nitrite solution, and the end point is dark blue on KI starch test paper , temperature 0 degrees, pH 1, stirred for 60 minutes, adjusted the end point with an appropriate amount of sulfamic acid until the KI starch test paper was slightly blue, after stabilization, added activated carbon and stirred for 5 minutes, added 5% red oil solution to catch carbon, precipitated, and suction filtered to obtain Solution I;

[0028] 350 parts by weight of water, add 19.4 parts by weight of acetic acid, add 2 parts by weight of poly-12-hydroxyl ammonium stearate, heat up 90 degrees to make it transparent, adjust the water to cool down by 15 degrees, filter it into a large coupling tank; add 800 parts by weight of water, add 136 parts by weight Part of cau...

Embodiment 2

[0036] Add 98 parts by weight of hydrochloric acid to 800 parts by weight of water, add 60 parts by weight of 3,3'-dichlorobenzidine and beat for 120 minutes, add ice to cool down below -3°C, quickly add 132 parts by weight of sodium nitrite solution in 1 to 2 minutes, and the end point KI starch test paper is dark blue, 0°C, pH 1, stir for 60 minutes, adjust the end point with an appropriate amount of sulfamic acid until the KI starch test paper is slightly blue, after stabilization, add activated carbon and stir for 5 minutes, add 5% red oil solution to catch carbon, precipitate, pump Filter to obtain solution I;

[0037] 350 parts by weight of water, add 19.4 parts by weight of acetic acid, add 30 parts by weight of poly-12-hydroxyl ammonium stearate, heat up 90 degrees to make it transparent, adjust the water and cool down by 15 degrees, filter into the coupling tank; add 800 parts by weight of water, add 136 parts by weight Caustic soda, 102 parts by weight of AAMX are di...

Embodiment 3

[0045]Add 98 parts by weight of hydrochloric acid to 800 parts by weight of water, add 60 parts by weight of 3,3'-dichlorobenzidine and beat for 120 minutes, add ice to cool down below -3°C, quickly add 132 parts by weight of sodium nitrite solution in 1 to 2 minutes, and the end point KI starch test paper is dark blue, 0°C, pH 1, stir for 60 minutes, adjust the end point with an appropriate amount of sulfamic acid until the KI starch test paper is slightly blue, after stabilization, add activated carbon and stir for 5 minutes, add 5% red oil solution to catch carbon, precipitate, pump Filter to obtain solution I;

[0046] 350 parts by weight of water, add 19.4 parts by weight of acetic acid, add 60 parts by weight of poly-12-hydroxyl ammonium stearate, heat up 90 degrees to make it transparent, adjust the water to cool down by 15 degrees, filter into the coupling tank; 800 parts by weight of water, 136 parts by weight of fire Alkali, 102 parts by weight of AAMX, dissolves tra...

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Abstract

The invention discloses a preparation method of a pigment used for nitrocotton solvent ink, which comprises the following steps: beating 800 parts of water, 98 parts of hydrochloric acid and 60 parts of 3,3'-dichlorobenzidine, adding 132 parts of sodium nitrite solution at the temperature below -3 DEG C, stirring at the temperature of 0 DEG C, regulating the end point with sulfamic acid until KI starch test paper is slightly blue, and adding activated carbon and red oil solution to obtain a solution I; adding 19.4 parts of acetic acid and 2-60 parts of 12-hydroxy ammonium stearate in 350 parts of water, heating to be transparent, regulating water to reduce the temperature, and filtering the solution into a coupling tank; dissolving 136 parts of sodium hydroxide and 102 parts of AAMX in 800 parts of water to be transparent to obtain a solution II; adding the solution II into an acetic acid solution for anti-acidification, and stopping acid eduction when the pH is 4.8 to obtain a solution III; combining the solution II and the solution I into the solution III to couple for 50-60 minutes, convecting and adding convection alkali when the pH is 4.5 until coupling is ended, raising the temperature to 95 DEG C, adding 200 parts of sodium hydroxide, adding 5-52.5 parts of rosin solution, adding 100 parts of hydrochloric acid, regulating the pH to 5, adding 2-30 parts of WB-101, stirring, reducing the temperature below 60 DEG C, filtering by pressing, flushing, and drying to obtain the pigment used for nitrocotton solvent ink. The nitrocotton solvent ink prepared from the pigment used for solvent ink has low viscosity, high gloss, high transparency and high strength.

Description

technical field [0001] The invention relates to a preparation method of a pigment for nitrocellulose solvent ink. Background technique [0002] In today's society, the speed of printing machines is getting faster and faster, requiring high-strength and low-viscosity inks; high-end color printing requires inks with high transparency, especially yellow inks; high-end printed matter requires inks to have high gloss , and these requirements are completely dependent on the improvement of the pigment after the binder reaches a certain level. For conventional pigments, when the gloss, transparency, and strength are relatively high, the viscosity will also increase at the same time. Contents of the invention [0003] The purpose of the present invention is to provide a kind of preparation method of the prepared nitrocellulose solvent ink low viscosity, high gloss, high transparency, high strength solvent ink. [0004] The preparation method of the pigment for nitrocellulose solv...

Claims

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Application Information

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IPC IPC(8): C09B35/12C09B35/035C09D11/14
Inventor 王健
Owner LONGKOU UNION CHEM
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