Quick-dry ink

Abstract

The invention provides a quick-dry tap water pen ink which comprises the following components in percentage by weight: 4.0-8.0% of a coloring agent, 0.5-2.0% of a wetting agent and the balance of water, 15.0% to 25.0% of a humectant; 4.0 to 8.0% of a resin; 2.0%-5.0% of a dispersant; 0.3%-0.7% of a quick-drying auxiliary agent; 0.2%-0.5% of a wetting agent; 0.2% to 0.5% of a surfactant; 0.1%-0.3% of a defoaming agent; 0.1 to 0.2 percent of a sterilizing agent; 0.1 to 0.2 percent of pH (Potential of Hydrogen) regulator; and the balance of water. The preparation method of the quick-drying auxiliary agent comprises the following steps: dissolving fatty amine in absolute ethyl alcohol, raising the temperature to 60-70 DEG C, dropwise adding a 10% benzoyl peroxide aqueous solution into a reaction system, completing dropwise adding within 120-150 minutes, raising the temperature to 70-75 DEG C after dropwise adding is completed, and keeping the temperature for 2-3 hours; wherein the mass ratio of the ethanol to the fatty amine to the benzoyl peroxide is (780-820): (180-220): (35-45); and after the reaction is finished, distilling to remove the absolute ethyl alcohol to obtain the quick-drying additive.

Description

Technical Field

[0001] The present invention relates to the technical field of ink, in particular to a quick-drying ink. Background Art

[0002] Among modern writing instruments, any pen with a metal nib and a liquid ink reservoir that utilizes capillary action to ensure a continuous flow of ink through the nib's slits and iridium particles, creating an uninterrupted, continuous handwriting, is collectively referred to as a fountain pen. As a traditional writing instrument with a long history, fountain pens, with their unique nib shape, offer greater ease of writing than ballpoint pens, making them widely used for a variety of purposes, such as practicing calligraphy, signing, and taking notes. In recent years, advancements in writing instrument manufacturing have led to a continuous emergence of new and enhanced fountain pen designs, and user expectations for these products have steadily increased. Because common fountain pen inks are typically high-tension, low-viscosity dye-based systems, they require time to fully penetrate and dry after writing. This can easily lead to scratches and dirty hands during writing, making quick-drying fountain pen ink a popular choice.

[0003] There was a need to develop a quick-drying fountain pen ink that would completely dry within three seconds after writing, preventing scratches and contamination. Existing ink systems have high surface tension, making them difficult to penetrate and spread. Simply lowering the surface tension could result in excessive penetration, poor leakage resistance, and poor shelf life. Therefore, a completely new formulation was needed to reduce the drying time of existing ink systems without compromising key application properties, ultimately leading to the development of a quick-drying fountain pen ink. Summary of the Invention

[0004] In order to solve the above-mentioned defects, the present invention provides a quick-drying fountain pen ink.

[0005] The invention provides a quick-drying fountain pen ink, which comprises, based on the sum of the weight percentages of the various components being 100%, 4.0-8.0% of a colorant; 15.0-25.0% of a moisturizing agent; 4.0-8.0% of a resin; 2.0-5.0% of a dispersant; 0.3-0.7% of a quick-drying auxiliary agent; 0.2-0.5% of a wetting agent; 0.2-0.5% of a surfactant; 0.1-0.3% of a defoaming agent; 0.1-0.2% of a bactericide; 0.1-0.2% of a pH regulator; and the remainder. The quick-drying agent preparation method comprises: dissolving a fatty amine in anhydrous ethanol, raising the temperature to 60° C.-70° C., and then dropwise adding a 10% benzoyl peroxide aqueous solution into the reaction system over 120-150 minutes. After the dropwise addition is completed, the temperature is raised to 70-75° C. and kept warm for 2-3 hours. The mass ratio of ethanol, fatty amine and benzoyl peroxide is (780-820):(180-220):(35-45). After the reaction is completed, the anhydrous ethanol is removed by distillation to obtain the quick-drying agent.

[0006] According to one embodiment of the present invention, the fatty amine is one or more of ethylenediamine, triethylamine and primary amine.

[0007] According to another embodiment of the present invention, the wetting agent is selected from one or more of BYK-340, BYK-346, BYK-348 and BYK-349; preferably, BYK-348.

[0008] According to another embodiment of the present invention, the surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, fatty acid glyceride, sorbitan fatty acid ester, isomeric decanol polyoxyethylene ether, isomeric undecanol polyoxyethylene ether, and isomeric tridecanol polyoxyethylene ether; preferably, the fatty alcohol polyoxyethylene ether is one or more of fatty alcohol polyoxyethylene ether AEO-3, fatty alcohol polyoxyethylene ether AEO-6, fatty alcohol polyoxyethylene ether AEO-9 and fatty alcohol polyoxyethylene ether AEO-12; more preferably, it is fatty alcohol polyoxyethylene ether AEO-6.

[0009] According to another embodiment of the present invention, the colorant includes one or more of an acid black dye, an acid red dye and an acid blue dye; preferably, the acid black dye is one or more of CI Acid Black 24, CI Acid Black 26, CI Acid Black 31, CI Acid Black 52, CI Acid Black 63 and CI Acid Black 172; more preferably, it is CI Acid Black 52; the acid red dye is one or more of CI Acid Red 14, CI Acid Red 18, CI Acid Red 52, CI Acid Red 88 and CI Acid Red 183; more preferably, it is CI Acid Red 183; the acid blue dye is one or more of CI Acid Blue 9, CI Acid Blue 27, CI Acid Blue 80, CI Acid Blue 127, CI Acid Blue 183 and CI Acid Blue 317; more preferably, it is CI Acid Blue 127.

[0010] According to another embodiment of the present invention, the moisturizing agent is selected from one or more of propylene glycol, glycerol, polyethylene glycol 300, polyethylene glycol 400 and sorbitol; preferably, polyethylene glycol 400 and propylene glycol.

[0011] According to another embodiment of the present invention, the resin is selected from one or more of water-based acrylic emulsion, water-based hydroxy acrylic emulsion, water-based silicone-modified acrylic emulsion, and water-based styrene acrylic emulsion; preferably, it is water-based hydroxy acrylic emulsion.

[0012] According to another embodiment of the present invention, the dispersant is selected from one or more of BYK-110, BYK-161, BYK-163, BYK-190 and BYK-191; the dispersant in black ink is preferably BYK-190; the dispersant in red and blue inks is preferably BYK-191.

[0013] According to another embodiment of the present invention, the defoaming agent is selected from one or more of BYK-017, BYK-019, BYK-021, BYK-024, BYK-1711, and BYK-1719; preferably, BYK-019.

[0014] According to another embodiment of the present invention, the fungicide is selected from one or more of bronopol, phenoxymethanol, isothiazolinone, etc.; preferably bronopol and isothiazolinone.

[0015] According to another embodiment of the present invention, the pH regulator is selected from one or more of monoethanolamine, triethanolamine, sodium hydroxide and 2-amino-2-methyl-1-propanol (AMP95); preferably 2-amino-2-methyl-1-propanol (AMP95).

[0016] According to another embodiment of the present invention, the water is deionized water.

[0017] The quick-drying ink of the present invention contains a quick-drying aid that can accelerate the drying and film-forming speed of the resin and the drying process of the traces. When used with a specific amount of a wetting agent and a surfactant, the fluidity and wettability of the ink can be improved, allowing the ink to be more evenly distributed on the paper and writing to be smoother. At the same time, the adhesion of the ink can be enhanced, ensuring that the handwriting is clear and not prone to fading. The traces of the quick-drying ink of the present invention dry within 3 seconds after writing, and there is no significant change in the trace width and permeability, and no change in other related application properties. DETAILED DESCRIPTION

[0018] To make the present invention more clear and understandable, the technical solution of the present invention is further described below in conjunction with specific embodiments. The embodiments described below are only used to illustrate the present invention and are not intended to limit the present invention in any form or substance.

[0019] The quick-drying fountain pen ink of the present invention comprises, based on the total weight percentage of each component being 100%, 4.0-8.0% of a colorant; 15.0-25.0% of a humectant; 4.0-8.0% of a resin; 2.0-5.0% of a dispersant; 0.3-0.7% of a quick-drying auxiliary agent; 0.2-0.5% of a wetting agent; 0.2-0.5% of a surfactant; 0.1-0.3% of a defoaming agent; 0.1-0.2% of a bactericide; 0.1-0.2% of a pH regulator; and the balance being water. The ink of the present invention uses a homemade quick-drying auxiliary agent. The specific preparation method comprises: dissolving a fatty amine in anhydrous ethanol, raising the temperature to 60-70°C, and then dropwise adding a 10% benzoyl peroxide aqueous solution into the reaction system over 120-150 minutes. After the dropwise addition is completed, the temperature is raised to 70-75°C and kept warm for 2-3 hours. The mass ratio of ethanol, fatty amine and benzoyl peroxide is (780-820): (180-220): (35-45). After the reaction is completed, the anhydrous ethanol is removed by distillation to obtain the quick-drying auxiliary agent.

[0020] The quick-drying ink of the present invention contains a quick-drying aid that can accelerate the drying and film-forming speed of the resin and the drying process of the traces. When used with a specific amount of a wetting agent and a surfactant, the fluidity and wettability of the ink can be improved, allowing the ink to be more evenly distributed on the paper and writing to be smoother. At the same time, the adhesion of the ink can be enhanced, ensuring that the handwriting is clear and not prone to fading. The traces of the quick-drying ink of the present invention dry within 3 seconds after writing, and there is no significant change in the trace width and permeability, and no change in other related application properties.

[0021] In an optional embodiment, the quick-drying aid is prepared from fatty diamine, anhydrous ethanol, benzoyl peroxide and water.

[0022] In an optional embodiment, the wetting agent may be selected from one or more of BYK-340, BYK-346, BYK-348, BYK-349, etc. Preferably, it is BYK-348.

[0023] In an optional embodiment, the surfactant is selected from one or more of fatty alcohol polyoxyethylene ethers, fatty acid glycerides, sorbitan fatty acid esters, isomeric decanol polyoxyethylene ethers, isomeric undecanol polyoxyethylene ethers, isomeric tridecanol polyoxyethylene ethers, and the like. Preferably, the fatty alcohol polyoxyethylene ether can be one or more of fatty alcohol polyoxyethylene ether AEO-3, fatty alcohol polyoxyethylene ether AEO-6, fatty alcohol polyoxyethylene ether AEO-9, and fatty alcohol polyoxyethylene ether AEO-12. More preferably, it is fatty alcohol polyoxyethylene ether AEO-6.

[0024] In an optional embodiment, the colorant includes one or more of an acid black dye, an acid red dye, and an acid blue dye. The acid black dye can be one or more of CI Acid Black 24, CI Acid Black 26, CI Acid Black 31, CI Acid Black 52, CI Acid Black 63, and CI Acid Black 172. Preferably, it is CI Acid Black 52. The acid red dye can be one or more of CI Acid Red 14, CI Acid Red 18, CI Acid Red 52, CI Acid Red 88, and CI Acid Red 183. Preferably, it is CI Acid Red 183. The acid blue dye can be one or more of CI Acid Blue 9, CI Acid Blue 27, CI Acid Blue 80, CI Acid Blue 127, CI Acid Blue 183, and CI Acid Blue 317. Preferably, it is CI Acid Blue 127.

[0025] In an optional embodiment, the humectant can be selected from one or more of propylene glycol, glycerol, polyethylene glycol 300, polyethylene glycol 400 and sorbitol. Preferably, polyethylene glycol 400 and propylene glycol.

[0026] In an optional embodiment, the resin can be selected from one or more of water-based acrylic emulsion, water-based hydroxy acrylic emulsion, water-based silicone-modified acrylic emulsion, and water-based styrene acrylic emulsion, preferably, water-based hydroxy acrylic emulsion.

[0027] In an optional embodiment, the dispersant may be selected from one or more of BYK-110, BYK-161, BYK-163, BYK-190, and BYK-191. BYK-190 is preferably used as the dispersant in black ink, and BYK-191 is preferably used as the dispersant in red and blue inks.

[0028] In an optional embodiment, the defoaming agent may be selected from one or more of BYK-017, BYK-019, BYK-021, BYK-024, BYK-1711, and BYK-1719. Preferably, it is BYK-019.

[0029] In an optional embodiment, the fungicide can be selected from one or more of bronopol, phenoxymethanol, isothiazolinone, etc. Bronopol and isothiazolinone are preferred.

[0030] In an optional embodiment, the pH adjuster is selected from one or more of monoethanolamine, triethanolamine, sodium hydroxide and 2-amino-2-methyl-1-propanol (AMP95), preferably 2-amino-2-methyl-1-propanol (AMP95).

[0031] The present invention is further described below by way of specific examples. However, these examples are merely exemplary and do not constitute any limitation on the scope of the present invention. In the following examples and comparative examples, the reagents, materials, and instruments used are all commercially available unless otherwise specified.

[0032] The raw materials and components used in each embodiment are shown in Table 1.

[0033] Table 1

[0034]

[0035]

[0036] Among them, the quick-drying aid is a homemade machine drying agent aqueous solution, and the preparation process is as follows.

[0037] Raw materials: ethylenediamine, anhydrous ethanol, benzoyl peroxide (all purchased from Dow Chemical, USA), and deionized water.

[0038] Synthesis process and technology:

[0039] (1) Add 800 g of anhydrous ethanol into a three-necked flask and start stirring. While stirring, add 200 g of ethylenediamine into the three-necked flask. After the ethylenediamine is completely dissolved, turn on the heating. When the temperature rises to 60°C, begin to dropwise add 40 g of a pre-prepared 10% benzoyl peroxide aqueous solution into the three-necked flask. The addition is completed over 120 minutes. After the addition is completed, the temperature is raised to 70-75°C and kept warm for 2 hours.

[0040] (2) After the reaction is completed, distillation is performed to remove the anhydrous ethanol to obtain a quick-drying aid.

[0041] (3) Add the prepared quick-drying agent to deionized water to prepare a 20% aqueous solution for standby use.

[0042] The remaining raw materials are purchased from:

[0043] Moisturizers (polyethylene glycol 400, propylene glycol), surfactants (fatty alcohol polyoxyethylene ether AEO-6), and pH adjusters (2-amino-2-methyl-1-propanol (AMP95)) were purchased from Dow Chemical, USA.

[0044] Resin (water-based hydroxy acrylic emulsion) and colorants (CI acid black 52, CI acid red 183, CI acid blue 127) were purchased from BASF SE.

[0045] Wetting agent (BYK-348), defoaming agent (BYK-019), and dispersing agent (BYK-190, BYK-191) were purchased from BYK Chemicals, Germany.

[0046] Fungicides (bronopol, isothiazolinone) were purchased from Wenk Chemical, Germany.

[0047] Example 1 (quick-drying black)

[0048] 6 kg of colorant CI Acid Black 52 was added to 60.2 kg of deionized water, 5 kg of aqueous hydroxylated acrylic emulsion, 12 kg of polyethylene glycol 400, 10 kg of propylene glycol, and 5 kg of dispersant BYK-190, and stirred thoroughly. After uniform mixing, 0.5 kg of wetting agent BYK-348, 0.2 kg of fatty alcohol polyoxyethylene ether AEO-6, 0.2 kg of defoamer BYK-019, 0.1 kg of bronopol, 0.1 kg of isothiazolinone, 0.2 kg of 2-amino-2-methyl-1-propanol (AMP95), and 0.5 kg of a homemade organic drier aqueous solution were added, and the mixture was slowly stirred, filtered, and discharged to obtain black quick-drying fountain pen ink.

[0049] Example 2 (quick-drying red)

[0050] 5 kg of colorant CI Acid Red 183 was added to 63.4 kg of deionized water, 5 kg of aqueous hydroxylated acrylic emulsion, 12 kg of polyethylene glycol 400, 10 kg of propylene glycol, and 3 kg of dispersant BYK-191, and stirred thoroughly. After uniform mixing, 0.3 kg of wetting agent BYK-348, 0.3 kg of fatty alcohol polyoxyethylene ether AEO-6, 0.2 kg of defoamer BYK-019, 0.1 kg of bronopol, 0.1 kg of isothiazolinone, 0.2 kg of 2-amino-2-methyl-1-propanol (AMP95), and 0.7 kg of a homemade organic drier aqueous solution were added, and the mixture was slowly stirred, filtered, and discharged to obtain red quick-drying fountain pen ink.

[0051] Example 3 (quick-drying blue)

[0052] 5 kg of colorant CI Acid Blue 127 was added to 62.4 kg of deionized water, 5 kg of aqueous hydroxylated acrylic emulsion, 12 kg of polyethylene glycol 400, 10 kg of propylene glycol, and 4 kg of dispersant BYK-191, and stirred thoroughly. After uniform mixing, 0.2 kg of wetting agent BYK-348, 0.5 kg of fatty alcohol polyoxyethylene ether AEO-6, 0.2 kg of defoamer BYK-019, 0.1 kg of bronopol, 0.1 kg of isothiazolinone, 0.2 kg of 2-amino-2-methyl-1-propanol (AMP95), and 0.3 kg of a homemade organic drier aqueous solution were added, and the mixture was slowly stirred, filtered, and discharged to obtain a blue quick-drying fountain pen ink.

[0053] Comparative Example 1 (conventional black, no quick-drying aid, no wetting agent, and reduced surfactant content)

[0054] 6 kg of CI Acid Black 52 colorant was added to 61.2 kg of deionized water, 5 kg of aqueous hydroxylated acrylic emulsion, 12 kg of polyethylene glycol 400, 10 kg of propylene glycol, and 5 kg of dispersant BYK-190, and stirred thoroughly. After uniform mixing, 0.2 kg of fatty alcohol polyoxyethylene ether AEO-6, 0.2 kg of defoamer BYK-019, 0.1 kg of bronopol, 0.1 kg of isothiazolinone, and 0.2 kg of 2-amino-2-methyl-1-propanol (AMP95) were added, and the mixture was slowly stirred, filtered, and discharged to obtain conventional black fountain pen ink.

[0055] Comparative Example 2 (conventional red, no quick-drying aid, no wetting agent, and reduced surfactant content)

[0056] 5 kg of CI Acid Red 183 colorant was added to 64.1 kg of deionized water, 5 kg of an aqueous hydroxylated acrylic emulsion, 12 kg of polyethylene glycol 400, 10 kg of propylene glycol, and 3 kg of a dispersant, BYK-191, and stirred thoroughly. After uniform mixing, 0.2 kg of fatty alcohol polyoxyethylene ether AEO-6, 0.2 kg of a defoamer, BYK-019, 0.1 kg of bronopol, 0.1 kg of an isothiazolinone, and 0.2 kg of 2-amino-2-methyl-1-propanol (AMP95), were added, and the mixture was slowly stirred, filtered, and discharged to obtain conventional red fountain pen ink.

[0057] Comparative Example 3 (conventional blue, no quick-drying aid, no wetting agent, and reduced surfactant content)

[0058] 5 kg of CI Acid Blue 127 colorant was added to 63.1 kg of deionized water, 5 kg of aqueous hydroxylated acrylic emulsion, 12 kg of polyethylene glycol 400, 10 kg of propylene glycol, and 4 kg of dispersant BYK-191, and stirred thoroughly. After uniform mixing, 0.2 kg of fatty alcohol polyoxyethylene ether AEO-6, 0.2 kg of defoamer BYK-019, 0.1 kg of bronopol, 0.1 kg of isothiazolinone, and 0.2 kg of 2-amino-2-methyl-1-propanol (AMP95) were added, and the mixture was slowly stirred, filtered, and discharged to obtain conventional blue fountain pen ink.

[0059] The inks prepared in each embodiment and comparative example were subjected to relevant performance test analysis, and the test method is as follows:

[0060] (1) Drying time (Yong method): tilt the pen tip to the writing paper at an angle of 60-70°, write the character "Yong" (e.g., character) of approximately 1cm*1cm within 2 seconds, let it dry for X seconds, then rub the writing with your finger at a force of about 50g to see if the writing is smudged or blurred. Repeat the test 5 times. If all 5 passes are correct, the drying time is determined to be ≤X seconds. If at least one fails, the drying time is determined to be >X seconds. Adjust the waiting time after writing by seconds to obtain the actual drying time of the sample pen.

[0061] (2) Line width: Place the test pen that has passed the initial writing performance test into the "8" writing instrument, write at a speed of 80 ± 10 "8"s / min, at an angle of 70°, with a writing load of 100g, and write for 1 minute. Take the top center of the "8" as the test point, take five written lines, and measure the valley value of the line width using a reading microscope or equivalent testing equipment. Calculate the average value of the five lines.

[0062] (3) Bleeding degree: Replace the 70g writing paper used for testing the line width with tracing paper, and test the line width of the same pen on different papers respectively. The increase in the line width of the writing paper relative to the line width on the tracing paper is the bleeding degree.

[0063] (4) Leakage resistance: Adjust the pressure reduction speed of the pressure reducer to 10kPa / min to 12kPa / min. Use a pen with 1 / 2 of the ink in the ink container as a test pen. Remove the pen cap and insert the pen vertically with the tip facing downward into the pen holder. Place the pen in the vacuum cover of the pressure reducer. Turn on the pressure reducer. When the vacuum indication reaches the set negative pressure, maintain it for 5 minutes and check that the pen does not leak ink.

[0064] (5) Intermittent writing: Place the test pen that has passed the initial writing performance test into the intermittent writing instrument (test environment temperature 35±2℃, relative humidity 60-70%, wind speed 0.6±0.1m / s) for the specified time, apply the corresponding load, and write at a writing angle of 50-70° and a speed of 20mm / s.

[0065] (6) Continuous writing: Place the test pen that has passed the initial writing performance test into the "8" writing instrument, with a speed of 80±10 "8" characters / min, a fixture mass of (25±3)g, and write at an angle of 50-70° for 20 minutes.

[0066] The comparison of the test results of the ink properties prepared in each embodiment and comparative example is shown in Table 2.

[0067] Table 2

[0068]

[0069] From the above data, it can be seen that the quick-drying fountain pen ink provided by the present invention has obvious advantages in drying time compared with conventional ink, and there is no significant difference in other application performances.

[0070] The above embodiments are intended only to illustrate the present invention and are merely examples of the spirit of the present invention, rather than limitations of the present invention. Persons skilled in the relevant art may make modifications, changes, or substitutions without departing from the spirit and scope of the present invention. However, all equivalent technical solutions that do not deviate from the spirit of the present invention are intended to be included within the scope of protection of this case.

Claims

1. A quick-drying ink, characterized in that: The total weight percentage of each component is 100%, comprising: 4.0-8.0% colorant; 15.0-25.0% moisturizer; 4.0-8.0% resin; 2.0%-5.0% dispersant; 0.06-0.14% quick-drying agent; 0.2-0.5% wetting agent; 0.2-0.5% surfactant; 0.1-0.3% defoaming agent; 0.1-0.2% fungicide; 0.1-0.2% pH adjuster; and The balance is water; Wherein, the preparation method of the quick-drying auxiliary agent comprises: After dissolving the fatty amine in anhydrous ethanol, the temperature was raised to 60-70°C, and a 10% aqueous solution of benzoyl peroxide was added dropwise to the reaction system over 120-150 minutes. After the addition was complete, the temperature was raised to 70-75°C and kept warm for 2-3 hours. The mass ratio of ethanol, fatty amine, and benzoyl peroxide was (780-820): (180-220): (35-45); After the reaction is completed, the anhydrous ethanol is removed by distillation to obtain the quick-drying auxiliary agent.

2. The quick-drying fountain pen ink according to claim 1, characterized in that: The fatty amine is one or more of ethylenediamine, triethylamine and primary amine.

3. The quick-drying fountain pen ink according to claim 1, characterized in that: The wetting agent is selected from one or more of BYK-340, BYK-346, BYK-348 and BYK-349; preferably, BYK-348.

4. The quick-drying fountain pen ink according to claim 1, characterized in that: The surfactant is selected from one or more of fatty alcohol polyoxyethylene ether, fatty acid glyceride, sorbitan fatty acid ester, isomeric decanol polyoxyethylene ether, isomeric undecanol polyoxyethylene ether, and isomeric tridecanol polyoxyethylene ether; preferably, the fatty alcohol polyoxyethylene ether is one or more of fatty alcohol polyoxyethylene ether AEO-3, fatty alcohol polyoxyethylene ether AEO-6, fatty alcohol polyoxyethylene ether AEO-9, and fatty alcohol polyoxyethylene ether AEO-12; more preferably, it is fatty alcohol polyoxyethylene ether AEO-6.

5. The quick-drying fountain pen ink according to claim 1, characterized in that: The colorant includes one or more of acid black dye, acid red dye and acid blue dye; Preferably, the acid black dye is one or more of CI Acid Black 24, CI Acid Black 26, CI Acid Black 31, CI Acid Black 52, CI Acid Black 63 and CI Acid Black 172; more preferably, it is CI Acid Black 52; The acid red dye is one or more of CI Acid Red 14, CI Acid Red 18, CI Acid Red 52, CI Acid Red 88 and CI Acid Red 183; more preferably, CI Acid Red 183; The acid blue dye is one or more of CI Acid Blue 9, CI Acid Blue 27, CI Acid Blue 80, CI Acid Blue 127, CI Acid Blue 183 and CI Acid Blue 317; more preferably, it is CI Acid Blue 127.

6. The quick-drying fountain pen ink according to claim 1, characterized in that: The moisturizing agent is selected from one or more of propylene glycol, glycerol, polyethylene glycol 300, polyethylene glycol 400 and sorbitol; preferably, polyethylene glycol 400 and propylene glycol.

7. The quick-drying fountain pen ink according to claim 1, characterized in that: The resin is selected from one or more of water-based acrylic emulsion, water-based hydroxy acrylic emulsion, water-based silicone-modified acrylic emulsion, and water-based styrene acrylic emulsion; preferably, it is water-based hydroxy acrylic emulsion.

8. The quick-drying fountain pen ink according to claim 1, characterized in that: The dispersant is selected from one or more of BYK-110, BYK-161, BYK-163, BYK-190 and BYK-191; The dispersant in the black ink is preferably BYK-190; the dispersant in the red and blue inks is preferably BYK-191.

9. The quick-drying fountain pen ink according to claim 1, characterized in that: The defoaming agent is selected from one or more of BYK-017, BYK-019, BYK-021, BYK-024, BYK-1711, and BYK-1719; preferably, BYK-019.

10. The quick-drying fountain pen ink according to claim 1, characterized in that: The bactericide is selected from one or more of bronopol, phenoxymethanol, isothiazolinone, etc.; preferably bronopol and isothiazolinone; and / or The pH regulator is selected from one or more of monoethanolamine, triethanolamine, sodium hydroxide and 2-amino-2-methyl-1-propanol; preferably 2-amino-2-methyl-1-propanol; and / or The water is deionized water.

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