CN114316666A - Special color ink formula and processing technology thereof - Google Patents
Special color ink formula and processing technology thereof Download PDFInfo
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- CN114316666A CN114316666A CN202210007496.XA CN202210007496A CN114316666A CN 114316666 A CN114316666 A CN 114316666A CN 202210007496 A CN202210007496 A CN 202210007496A CN 114316666 A CN114316666 A CN 114316666A
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Abstract
The invention relates to the technical field of spot color ink preparation, and discloses a spot color ink formula which comprises the following raw materials in parts by weight: the method comprises the following raw materials: LX-2 resin, ammonia water, sludge, hydroxylamine powder, selenium powder, a solvent, paraffin, a defoaming agent, aqueous amino resin liquid, a color fixing agent, gelatin, a pigment and a proper amount of deionized water; a processing technology of spot color ink comprises the following working steps: the first step is as follows: carrying out constant temperature reaction on the pigment; the second step is that: melting paraffin; the third step: heating to react and adding additive. In the invention, by adding the sludge, the hydroxylamine powder and the selenium powder, when selenium reacts with heavy metal, a metal-selenium complex can be produced, hydroxylamine has strong reducibility, coordinates with charged metal ions in the metal-selenium complex, is dissolved in the sludge, and forms a large precipitate insoluble in water, so that the aim of separating the heavy metal in the ink can be effectively fulfilled, and the effect of reducing the content of the heavy metal in the spot color ink is achieved.
Description
Technical Field
The invention relates to the technical field of spot color ink preparation, in particular to a formula of spot color ink and a processing technology thereof.
Background
The spot color ink is a specific color ink which is mixed in advance, such as fluorescent yellow, pearl blue, metal gold and silver ink and the like, is not mixed by four colors of CMYK, and color register means accurate color; solid, spot colors are generally defined as solid colors, no matter how light such colors are, to represent any shade of spot color; opacity, spot color ink is an ink of a covering nature, which is opaque and allows for coverage of the field; the color gamut in the color process color library is wide, exceeds the RGB color gamut, and is not to say CMYK color space, so that a large part of colors cannot be represented by CMYK four-color printing ink.
In all the ink components, some heavy metals with excessive content exist, which causes great harm to human bodies, although some novel environment-friendly inks are proposed in recent years, the concept of environment protection is advocated by using heavy metal-free ingredient mixing composition, but the ink performance function is poor due to the lack of heavy metal-rich additive materials, such as color durability, color concentration, volatility and the like.
Therefore, a spot color ink formula and a processing technology thereof are provided.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a special color ink formula and a processing technology thereof.
In order to achieve the purpose, the invention adopts the following technical scheme that a spot color ink formula comprises the following raw materials: LX-2 resin, ammonia water, sludge, hydroxylamine powder, selenium powder, a solvent, paraffin, a defoaming agent, aqueous amino resin liquid, a color fixing agent, gelatin, pigment and a proper amount of deionized water.
A processing technology of spot color ink comprises the following working steps:
the first step is as follows: carrying out constant temperature reaction on the pigment;
the second step is that: melting paraffin;
the third step: heating to react and adding an additive;
the fourth step: adding a color fixing agent and gelatin;
the fifth step: mixing the sludge, hydroxylamine powder and selenium powder;
and a sixth step: standing and taking materials.
Preferably, in the first step, LX-2 resin, ammonia water, a solvent and a pigment are put into a reaction kettle, the pigment is uniformly heated in the reaction kettle through heat conduction oil circulation heating, the temperature in the reaction kettle is controlled to be 50-55 ℃, and the stirring is continuously carried out for 20 minutes at the temperature of 50-55 ℃.
Preferably, in the second step, the paraffin is melted into liquid by adopting an electric heating mode, the paraffin is prevented from being exposed to open fire, the paraffin is amorphous and has no fixed melting point and boiling point, so that the paraffin continuously absorbs heat, the temperature is continuously increased, part of solid exists in the paraffin during melting, and part of liquid exists in the paraffin, so that the paraffin is in a solid-liquid mixed state, and when the paraffin is used, the paraffin is completely melted into liquid and is kept at 65-70 ℃ for later use.
Preferably, in the third step, after the stirring in the first step is continued for 20 minutes, the temperature of the reaction kettle is adjusted to be above 65 ℃ and is kept between 65 ℃ and 70 ℃.
Preferably, in the third step, the defoaming agent and the aqueous nitrogen-based resin liquid are heated and kept at 65-70 ℃, the paraffin wax part which is heated and melted in the second step is added into the reaction kettle, the heated defoaming agent and the aqueous nitrogen-based resin liquid are sequentially added, and in the adding process, the paraffin wax, the defoaming agent and the aqueous nitrogen-based resin liquid are uniformly stirred and fully mixed with the pigment in the reaction kettle.
Preferably, in the fourth step, a color fixing agent and gelatin are respectively added into the mixture uniformly stirred in the third step, wherein the color fixing agent is cationic quaternary ammonium salt and is any one of cetylpyridinium chloride and cetylpyridinium bromide, the mixture is stirred again, and the temperature in the reaction kettle is adjusted to be between 30 and 40 ℃ after the mixture is uniformly stirred and is constant.
Preferably, the fifth step is that the sludge, the hydroxylamine powder and the selenium powder are taken and fed into a mixer, the sludge, the hydroxylamine powder and the selenium powder are fully mixed through the mixer, and a proper amount of deionized water is added in the mixing process to mix the sludge, the hydroxylamine powder and the selenium powder into paste, wherein the sludge is seabed sediment.
Preferably, the sludge, hydroxylamine powder and selenium powder which are mixed into paste in the sixth step and the fifth step are added into the reaction kettle, the temperature in the reaction kettle is continuously kept at a constant temperature of between 30 and 40 ℃, the mixture is stirred at a constant speed at the constant temperature, and the stirring time is set to be 30 minutes.
Preferably, in the seventh step, the fully stirred material in the sixth step is kept stand, and after the material is kept stand for 30 minutes, the finished spot color ink is obtained, and the finished spot color ink is taken out of the reaction kettle, packaged and stored.
Advantageous effects
The invention provides a spot color ink formula and a processing technology thereof. The method has the following beneficial effects:
(1) the special color ink formula and the processing technology thereof are characterized in that sludge, hydroxylamine powder and selenium powder are added into the special color ink formula, when selenium reacts with heavy metal, a metal-selenium complex can be produced, hydroxylamine has strong reducibility, coordinates with charged metal ions in the metal-selenium complex, is dissolved in sludge, and forms a large precipitate insoluble in water, so that the aim of separating the heavy metal from the ink can be effectively achieved, the lasting color and the heavy color of the ink are ensured, and the effect of reducing the content of the heavy metal in the special color ink is achieved.
(2) The special color ink formula and the processing technology thereof adopt an electric heating mode to melt the paraffin into liquid state, avoid the paraffin from encountering naked fire, the paraffin is non-crystal and has no fixed melting point and boiling point, so the paraffin continuously absorbs heat, the temperature is continuously increased, part of solid exists in the paraffin melting process, and part of liquid exists in the paraffin melting process, so the paraffin is in a solid-liquid mixed state, when in use, the paraffin is completely melted into liquid state and is kept between 65 ℃ and 70 ℃, the paraffin heated and melted in the second step is added, the defoamer and the water-based nitrogen-based resin liquid are heated and kept between 65 ℃ and 70 ℃, the heated defoamer and the water-based nitrogen-based resin liquid are sequentially added, and in the adding process, the defoamer and the water-based nitrogen-based resin liquid are uniformly stirred and fully mixed with the pigment in a reaction kettle, the paraffin is added into the pigment as a slip agent, and can improve the friction resistance and the fluidity of the ink, reduce the viscosity, improve the smoothness of a film layer and reduce the paper napping phenomenon when the pigment is used.
(3) According to the spot color ink formula and the processing technology thereof, air is easily brought into the pigment in the stirring process, so that bubbles appear in the pigment, one part of gas can be automatically removed, but the other part of gas can be mixed into the pigment and stably exists under foam stabilizing substances or other factors, the harm is great, the production efficiency is reduced, equipment is damaged, the quality of the ink is reduced, a proper amount of defoaming agent is added, defoaming and foam inhibition are carried out through the defoaming agent, and the pigment quality and the production efficiency are improved.
(4) The reaction kettle comprises a stainless steel anti-corrosion kettle body, a kettle cover, a stirrer, a jacket, a supporting and driving device, a shaft seal device and the like, and the temperature in the reaction kettle is more uniform through heat conduction oil circulation heating, so that the effect of uniformly heating the pigment in the reaction kettle is achieved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: a spot color ink formula comprises the following raw materials in parts by weight: 3 parts of LX-2 resin, 2 parts of ammonia water, 1 part of sludge, 0.25 part of hydroxylamine powder, 0.25 part of selenium powder, 0.15 part of solvent, 0.1 part of paraffin, 0.05 part of defoaming agent, 0.1 part of aqueous amino resin liquid, 0.05 part of color fixing agent, 0.05 part of gelatin, 3 parts of pigment and a proper amount of deionized water.
A processing technology of spot color ink comprises the following working steps:
the first step is as follows: carrying out constant temperature reaction on the pigment; putting 3 parts of LX-2 resin, 2 parts of ammonia water, 0.15 part of solvent and 3 parts of pigment into a reaction kettle, wherein the reaction kettle comprises a stainless steel anti-corrosion kettle body, a kettle cover, a stirrer, a jacket, a supporting and driving device, a shaft sealing device and the like, heating circularly through heat conduction oil to ensure that the temperature in the reaction kettle is more uniform, the pigment is uniformly heated in the reaction kettle, the temperature in the reaction kettle is controlled to be 50-55 ℃, and the stirring is continuously carried out for 20 minutes at the temperature of 50-55 ℃.
The second step is that: melting paraffin; the paraffin is initially light yellow semitransparent blocky solid, the color of the paraffin becomes dark in the melting process, the temperature rise is accelerated along with stirring, the paraffin is melted into medium yellow liquid, the paraffin is burnt when meeting open fire and oxygen, the paraffin is melted into liquid by adopting an electric heating mode, the paraffin is prevented from meeting the open fire, the paraffin is non-crystal and has no fixed melting point and boiling point, the paraffin continuously absorbs heat, the temperature is continuously raised, a part of solid exists in the paraffin in the melting process, and a part of liquid exists in the paraffin, so that the paraffin is in a solid-liquid mixed state, and when the paraffin is used, 0.1 part of the paraffin is completely melted into the liquid and is kept between 65 ℃ and 70 ℃ for later use.
The third step: heating to react and adding an additive; after the first step is continuously stirred for 20 minutes, the temperature of the reaction kettle is adjusted to be more than 65 ℃, the temperature is kept between 65 ℃ and 70 ℃, 0.1 part of paraffin wax which is heated and melted in the second step is added, 0.05 part of defoaming agent and 0.1 part of water-based nitrogen-based resin liquid are heated, the defoaming agent and the water-based nitrogen-based resin liquid are heated and kept between 65 ℃ and 70 ℃, then the heated defoaming agent and the water-based nitrogen-based resin liquid are sequentially added, the defoaming agent and the water-based nitrogen-based resin liquid are uniformly stirred in the adding process, the paraffin wax, the defoaming agent and the water-based nitrogen-based resin liquid are fully mixed with the pigment in the reaction kettle, the paraffin wax is added into the pigment as a slip agent, the paraffin wax can improve the friction resistance and the fluidity of the ink, reduce the viscosity, improve the smoothness of a film layer, reduce the paper galling phenomenon when the pigment is used, because air is easily taken into the pigment in the stirring process, so that bubbles appear in the pigment, one part of gas can be automatically discharged, but the other part of gas can be mixed into the pigment and stably exists under the conditions of foam stabilizing substances or other factors, which greatly harms the production efficiency, damages equipment and reduces the quality of the ink, so that a proper amount of defoaming agent is added, defoaming and foam inhibition are carried out through the defoaming agent, and the quality of the pigment and the production efficiency are improved.
The fourth step: adding a color fixing agent and gelatin; and (3) respectively adding 0.05 part of color fixing agent and 0.05 part of gelatin into the mixture uniformly stirred in the third step, wherein the color fixing agent is cationic quaternary ammonium salt and is any one of cetylpyridinium chloride and cetylpyridinium bromide, stirring the mixture again, and adjusting the temperature in the reaction kettle to be between 30 and 40 ℃ after uniform stirring and keeping the temperature constant.
The fifth step: mixing the sludge, hydroxylamine powder and selenium powder; 1 part of sludge, 0.25 part of hydroxylamine powder and 0.25 part of selenium powder are taken and sent into a mixer, the sludge, the hydroxylamine powder and the selenium powder are fully mixed by the mixer, and a proper amount of deionized water is added in the mixing process to mix the sludge, the hydroxylamine powder and the selenium powder into paste, wherein the sludge is seabed sediment.
And a sixth step: adding sludge, hydroxylamine powder and selenium powder; and adding the sludge, hydroxylamine powder and selenium powder which are mixed into paste in the fifth step into a reaction kettle, continuously keeping the temperature in the reaction kettle at a constant temperature of between 30 and 40 ℃, and stirring the mixture at a constant speed for 30 minutes.
The seventh step: standing and taking materials; and sixthly, standing the fully stirred materials, obtaining finished product spot color ink after standing for 30 minutes, taking out the finished product spot color ink from the reaction kettle, and packaging and storing the finished product spot color ink.
Example two: a spot color ink formula comprises the following raw materials in parts by weight: 4.2 parts of LX-2 resin, 1 part of ammonia water, 0.8 part of sludge, 0.5 part of hydroxylamine powder, 0.5 part of selenium powder, 0.4 part of solvent, 0.4 part of paraffin, 0.05 part of defoaming agent, 0.05 part of aqueous amino resin liquid, 0.05 part of color fixing agent, 0.05 part of gelatin, 2 parts of pigment and a proper amount of deionized water.
A processing technology of spot color ink comprises the following working steps:
the first step is as follows: carrying out constant temperature reaction on the pigment; 4.2 parts of LX-2 resin, 1 part of ammonia water, 0.4 part of solvent and 2 parts of pigment are put into a reaction kettle, the reaction kettle comprises a stainless steel anti-corrosion kettle body, a kettle cover, a stirrer, a jacket, a supporting and driving device, a shaft sealing device and the like, the temperature in the reaction kettle is more uniform through heat conduction oil circulation heating, the pigment is uniformly heated in the reaction kettle, the temperature in the reaction kettle is controlled to be 50-55 ℃, and the stirring is continuously carried out for 20 minutes under the temperature condition of 50-55 ℃.
The second step is that: melting paraffin; the paraffin is initially light yellow semitransparent blocky solid, the color of the paraffin becomes dark in the melting process, the temperature rise is accelerated along with stirring, the paraffin is melted into medium yellow liquid, the paraffin is burnt when meeting open fire and oxygen, the paraffin is melted into liquid by adopting an electric heating mode, the paraffin is prevented from meeting the open fire, the paraffin is non-crystal and has no fixed melting point and boiling point, the paraffin continuously absorbs heat, the temperature is continuously raised, a part of solid exists in the paraffin in the melting process, and a part of liquid exists in the paraffin, so that the paraffin is in a solid-liquid mixed state, and when the paraffin is used, 0.4 part of the paraffin is completely melted into the liquid and is kept between 65 ℃ and 70 ℃ for later use.
The third step: heating to react and adding an additive; after the first step is continuously stirred for 20 minutes, the temperature of the reaction kettle is adjusted to be more than 65 ℃, the temperature is kept between 65 ℃ and 70 ℃, 0.4 part of paraffin wax which is heated and melted in the second step is added, 0.05 part of defoaming agent and 0.05 part of water-based nitrogen-based resin liquid are heated, the defoaming agent and the water-based nitrogen-based resin liquid are heated and kept between 65 ℃ and 70 ℃, then the heated defoaming agent and the water-based nitrogen-based resin liquid are sequentially added, the defoaming agent and the water-based nitrogen-based resin liquid are uniformly stirred in the adding process, the paraffin wax, the defoaming agent and the water-based nitrogen-based resin liquid are fully mixed with the pigment in the reaction kettle, the paraffin wax is added into the pigment as a slip agent, the paraffin wax can improve the friction resistance and the fluidity of the ink, reduce the viscosity, improve the smoothness of a film layer, reduce the paper galling phenomenon when the pigment is used, because air is easily taken into the pigment in the stirring process, so that bubbles appear in the pigment, one part of gas can be automatically discharged, but the other part of gas can be mixed into the pigment and stably exists under the conditions of foam stabilizing substances or other factors, which greatly harms the production efficiency, damages equipment and reduces the quality of the ink, so that a proper amount of defoaming agent is added, defoaming and foam inhibition are carried out through the defoaming agent, and the quality of the pigment and the production efficiency are improved.
The fourth step: adding a color fixing agent and gelatin; and (3) respectively adding 0.05 part of color fixing agent and 0.05 part of gelatin into the mixture uniformly stirred in the third step, wherein the color fixing agent is cationic quaternary ammonium salt and is any one of cetylpyridinium chloride and cetylpyridinium bromide, stirring the mixture again, and adjusting the temperature in the reaction kettle to be between 30 and 40 ℃ after uniform stirring and keeping the temperature constant.
The fifth step: mixing the sludge, hydroxylamine powder and selenium powder; feeding 0.8 part of sludge, 0.5 part of hydroxylamine powder and 0.5 part of selenium powder into a mixer, fully mixing the sludge, the hydroxylamine powder and the selenium powder by the mixer, and adding a proper amount of deionized water in the mixing process to mix the sludge, the hydroxylamine powder and the selenium powder into paste, wherein the sludge is seabed sediment.
And a sixth step: adding sludge, hydroxylamine powder and selenium powder; and adding the sludge, hydroxylamine powder and selenium powder which are mixed into paste in the fifth step into a reaction kettle, continuously keeping the temperature in the reaction kettle at a constant temperature of between 30 and 40 ℃, and stirring the mixture at a constant speed for 30 minutes.
The seventh step: standing and taking materials; and sixthly, standing the fully stirred materials, obtaining finished product spot color ink after standing for 30 minutes, taking out the finished product spot color ink from the reaction kettle, and packaging and storing the finished product spot color ink.
The working principle of the invention is as follows: taking sludge, hydroxylamine powder and selenium powder, feeding the sludge, hydroxylamine powder and selenium powder into a mixer, fully mixing the sludge, hydroxylamine powder and selenium powder by the mixer, adding a proper amount of deionized water in the mixing process to mix the sludge, hydroxylamine powder and selenium powder into a paste, adding the sludge, hydroxylamine powder and selenium powder which are mixed into the paste into a reaction kettle, continuously keeping the temperature in the reaction kettle at a constant temperature of between 30 and 40 ℃, stirring the mixture at a constant speed at the constant temperature, adding the sludge, hydroxylamine powder and selenium powder into a formula of special color ink, wherein when selenium reacts with heavy metal, a metal-selenium complex is produced, hydroxylamine has strong reducibility, coordinates with charged metal ions in the metal-selenium complex, is dissolved in the sludge, and forms a large precipitate which is insoluble in water, the aim of separating heavy metal from the ink can be effectively fulfilled.
The paraffin is melted into liquid by adopting an electric heating mode, the paraffin is prevented from encountering open fire, the paraffin is non-crystalline and has no fixed melting point and boiling point, so the paraffin continuously absorbs heat, the temperature is continuously increased, part of solid exists in the paraffin during the melting process, and part of liquid exists in the paraffin, so the paraffin is in a solid-liquid mixed state, when the paraffin wax is used, the paraffin wax is completely melted into liquid and is kept between 65 ℃ and 70 ℃, the paraffin wax after being heated and melted in the second step is added, the defoamer and the aqueous nitrogen-based resin liquid are heated, so that the defoamer and the aqueous nitrogen-based resin liquid are heated and kept between 65 ℃ and 70 ℃, the heated defoamer and the aqueous nitrogen-based resin liquid are sequentially added, and in the adding process, the defoamer and the aqueous nitrogen-based resin liquid are uniformly stirred, so that the paraffin wax, the defoamer and the aqueous nitrogen-based resin liquid are fully mixed with the pigment in the reaction kettle, and the paraffin wax is added into the pigment as a slipping agent, the paraffin can improve the friction resistance and the fluidity of the ink, reduce the viscosity, improve the smoothness of a film layer and reduce the paper napping phenomenon when the pigment is used.
Adding the melted paraffin wax in the second step, heating the defoaming agent and the aqueous nitrogen-based resin liquid to heat the defoaming agent and the aqueous nitrogen-based resin liquid to keep the temperature of 65-70 ℃, then sequentially adding the heated defoaming agent and the aqueous nitrogen-based resin liquid, stirring and uniformly discharging the mixture in the adding process to fully mix the paraffin wax, the defoaming agent and the aqueous nitrogen-based resin liquid with the pigment in a reaction kettle, adding the paraffin wax serving as a slip agent into the pigment, wherein the paraffin wax can improve the friction resistance and the fluidity of the ink, reduce the viscosity, improve the smoothness of a film layer and reduce the paper galling phenomenon when the pigment is used, because air is easily brought into the pigment in the stirring process, bubbles appear in the pigment, part of the gas can be automatically removed, but the other part of the gas can be mixed into the pigment and stably exists under foam stabilizing substances or other factors, and the harm is very large, the production efficiency is reduced, the equipment is damaged, and the quality of the printing ink is reduced, so that a proper amount of defoaming agent is added, defoaming and foam inhibition are carried out through the defoaming agent, and the pigment quality and the production efficiency are improved.
The reaction kettle comprises a stainless steel anti-corrosion kettle body, a kettle cover, a stirrer, a jacket, a supporting and driving device, a shaft seal device and the like, and the temperature in the reaction kettle is more uniform through the heat conduction oil circulation heating.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A spot color ink formula comprises the following raw materials in parts by weight: the method is characterized in that: the method comprises the following raw materials: LX-2 resin, ammonia water, sludge, hydroxylamine powder, selenium powder, a solvent, paraffin, a defoaming agent, aqueous amino resin liquid, a color fixing agent, gelatin, a pigment and a proper amount of deionized water.
2. A processing technology of spot color ink is characterized in that: the method comprises the following working steps:
the first step is as follows: carrying out constant temperature reaction on the pigment;
the second step is that: melting paraffin;
the third step: heating to react and adding an additive;
the fourth step: adding a color fixing agent and gelatin;
the fifth step: mixing the sludge, hydroxylamine powder and selenium powder;
and a sixth step: adding sludge, hydroxylamine powder and selenium powder;
the seventh step: standing and taking materials.
3. The process of claim 2, wherein the spot color ink comprises: the first step, putting LX-2 resin, ammonia water, a solvent and a pigment into a reaction kettle, heating the pigment in the reaction kettle uniformly by circularly heating heat-conducting oil, controlling the temperature in the reaction kettle to be 50-55 ℃, and continuously stirring for 20 minutes at the temperature of 50-55 ℃.
4. The process of claim 2, wherein the spot color ink comprises: and in the second step, the paraffin is melted into liquid by adopting an electric heating mode, the paraffin is prevented from encountering open fire, the paraffin is amorphous and has no fixed melting point and boiling point, so that the paraffin continuously absorbs heat, the temperature is continuously increased, part of solid exists in the paraffin melting process, and part of liquid exists in the paraffin melting process, so that the paraffin is in a solid-liquid mixed state, and when the paraffin is used, the paraffin is completely melted into liquid and is kept at 65-70 ℃ for later use.
5. The process of claim 2, wherein the spot color ink comprises: and in the third step, after the stirring is continuously carried out for 20 minutes in the first step, the temperature of the reaction kettle is adjusted to be above 65 ℃, and the temperature is kept between 65 ℃ and 70 ℃.
6. The process of claim 2, wherein the spot color ink comprises: and step three, heating the defoaming agent and the aqueous nitrogen-based resin liquid to enable the defoaming agent and the aqueous nitrogen-based resin liquid to be heated and kept at 65-70 ℃, adding the paraffin wax which is heated and melted in the step two into the reaction kettle, sequentially adding the heated defoaming agent and the aqueous nitrogen-based resin liquid, and stirring and uniformly discharging the paraffin wax, the defoaming agent and the aqueous nitrogen-based resin liquid in the adding process to enable the paraffin wax, the defoaming agent and the aqueous nitrogen-based resin liquid to be fully mixed with the pigment in the reaction kettle.
7. The process of claim 2, wherein the spot color ink comprises: and step four, respectively adding a color fixing agent and gelatin into the mixture uniformly stirred in the step three, wherein the color fixing agent is cationic quaternary ammonium salt and is any one of cetylpyridinium chloride and cetylpyridinium bromide, stirring the mixture again, and adjusting the temperature in the reaction kettle to be between 30 and 40 ℃ after uniform stirring and keeping the temperature constant.
8. The process of claim 2, wherein the spot color ink comprises: and fifthly, feeding the sludge, the hydroxylamine powder and the selenium powder into a mixer, fully mixing the sludge, the hydroxylamine powder and the selenium powder by the mixer, and adding a proper amount of deionized water in the mixing process to mix the sludge, the hydroxylamine powder and the selenium powder into paste, wherein the sludge is seabed sediment.
9. The process of claim 2, wherein the spot color ink comprises: and sixthly, adding the sludge, hydroxylamine powder and selenium powder which are mixed into paste in the fifth step into the reaction kettle, continuously keeping the temperature in the reaction kettle at a constant temperature of between 30 and 40 ℃, and stirring the mixture at a constant speed for 30 minutes.
10. The process of claim 2, wherein the spot color ink comprises: and step seven, standing the fully stirred material obtained in the step six, standing for 30 minutes to obtain the finished product spot color ink, taking out the finished product spot color ink from the reaction kettle, and packaging and storing.
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