Dye-type black ink-jet ink and preparation method and application thereof

Abstract

The invention provides dye type black ink-jet ink as well as a preparation method and application thereof, and belongs to the field of ink-jet ink. Comprising the following components in percentage by mass: 22-23% of black color paste, 15% of glycerol, 2-3% of triethylene glycol, 6-8% of triethylene glycol monobutyl ether, 0.4-0.6% of a bacteriostatic agent, 0.7-1% of triethanolamine, 5% of urea, 0.5% of a flatting agent, 1% of a lubricating agent, 0.05-0.1% of silicone oil and the balance of water. In order to reduce the cost, the dye-type black ink-jet ink obtained by screening proper solvents, surfactants and other substances and controlling the pH value, conductivity, surface tension, viscosity and other performance parameters is used as general dye-type ink.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet inks, and particularly to a dye-based black inkjet ink, a preparation method thereof, and an application thereof. Background Art

[0002] With the development and popularization of digital technology in work and life, inkjet printers are increasingly widely used, and inkjet printing ink is the key technology in inkjet printing. Inkjet printing ink is mainly divided into two types: dyes and pigments. Pigment-based inks have excellent properties such as low toxicity, lightfastness, and water resistance compared to dye inks; dye inks have stronger solubility, no nozzle clogging, bright colors, the ink marks are easily absorbed by materials after spraying, and at the same time, they have many advantages such as low price and low cost compared to pigment inks. In terms of dye-based inks, they are relatively common on the market at present and the technology is relatively mature. Most of the OEM original inks led by HP, CANON, Epson, etc. still use dye inks, and there is a problem of high cost. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a dye-based black inkjet ink, a preparation method thereof, and an application thereof. The dye-based black inkjet ink provided by the present invention reduces the cost while ensuring the quality of the ink.

[0004] In order to achieve the above-mentioned invention purpose, the present invention provides the following technical solutions:

[0005] The present invention provides a dye-based black inkjet ink, comprising the following components in mass fractions:

[0006] 22-23% of black color paste, 15% of glycerol, 2-3% of triethylene glycol, 6-8% of triethylene glycol monobutyl ether, 0.4-0.6% of bacteriostatic agent, 0.7-1% of triethanolamine, 5% of urea, 0.5% of leveling agent, 1% of lubricant, 0.05-0.1% of silicone oil, and the balance of water.

[0007] Preferably, the dye-based black inkjet ink comprises the following components in mass fractions:

[0008] 22.5% of black color paste, 15% of glycerol, 2.5% of triethylene glycol, 6.5% of triethylene glycol monobutyl ether, 0.45% of bacteriostatic agent, 0.8% of triethanolamine, 5% of urea, 0.5% of leveling agent, 1% of lubricant, 0.055% of silicone oil, and the balance of water; or comprises the following components in mass fractions:

[0009] 23% of black color paste, 15% of glycerol, 3% of triethylene glycol, 8% of triethylene glycol monobutyl ether, 0.6% of bacteriostatic agent, 1% of triethanolamine, 5% of urea, 0.5% of leveling agent, 1% of lubricant, 0.1% of silicone oil, and the balance of water; or comprises the following components in mass fractions:

[0010] 22% black color paste, 15% glycerol, 2% triethylene glycol, 6% triethylene glycol monobutyl ether, 0.4% bacteriostat, 0.7% triethanolamine, 5% urea, 0.5% leveling agent, 1% lubricant, 0.05% silicone oil, and the balance water.

[0011] Preferably, the bacteriostat is Proxel GXL.

[0012] Preferably, the leveling agent is SURFYNOL 440.

[0013] Preferably, the lubricant is SURFYNOL 465.

[0014] Preferably, the silicone oil is TSF4440.

[0015] The present invention also provides a preparation method of the dye-based black inkjet ink described in the above technical solution, comprising the following steps:

[0016] Mix the black color paste, glycerol, triethylene glycol, triethylene glycol monobutyl ether, bacteriostat, triethanolamine, urea, leveling agent, lubricant, silicone oil and water to obtain the dye-based black inkjet ink.

[0017] The present invention also provides an application of the dye-based black inkjet ink described in the above technical solution in the printing field, and the application is used for Epson cartridges.

[0018] Preferably, the Epson cartridges include Epson T2621 series, Epson T1811 series and Epson T0711 series.

[0019] The present invention provides a dye-based black inkjet ink, comprising the following components in mass fractions: 22-23% black color paste, 15% glycerol, 2-3% triethylene glycol, 6-8% triethylene glycol monobutyl ether, 0.4-0.6% bacteriostat, 0.7-1% triethanolamine, 5% urea, 0.5% leveling agent, 1% lubricant, 0.05-0.1% silicone oil, and the balance water.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present invention, the black color paste improves the color density, glycerol plays a role in moisturizing, triethylene glycol plays a role in antifreezing, triethylene glycol monobutyl ether plays a role as a penetrant, triethanolamine is used as a pH regulator, urea is used as a cosolvent, and the leveling agent, lubricant and silicone oil play a role as surfactants.

[0022] The present invention aims to reduce costs and focuses on the adaptability, stability, and balance of ink. By screening suitable substances such as solvents and surfactants, and taking reasonable combinations to control performance parameters such as pH value, conductivity, surface tension, and viscosity, the obtained dye-based black inkjet ink, as a general-purpose dye ink, has an adaptability that meets most cartridges of the same generation or even cross-generation on the current market, completely breaking the limitations of inks of a single model.

[0023] The data of the examples show that the pH value of the dye-based black inkjet ink provided by the present invention is 8.0 - 9.0, the conductivity < 5000 μS / cm, the surface tension is 26.0 - 28.0 mN / m, the viscosity is 3.0 - 3.6 cP, the absorbance at 560 - 573 nm is 0.65 - 0.75, and the cost is 14.0 - 15.0 yuan / kg. Detailed implementation manners

[0024] The present invention provides a dye-based black inkjet ink, which comprises the following components in mass fractions:

[0025] Black color paste 22 - 23%, glycerol 15%, triethylene glycol 2 - 3%, triethylene glycol monobutyl ether 6 - 8%, bacteriostatic agent 0.4 - 0.6%, triethanolamine 0.7 - 1%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.05 - 0.1% and the balance water.

[0026] In the present invention, unless otherwise specified, the raw materials used are commercially available products in the art.

[0027] In the present invention, the dye-based black inkjet ink preferably comprises the following components in mass fractions:

[0028] Black color paste 22.5%, glycerol 15%, triethylene glycol 2.5%, triethylene glycol monobutyl ether 6.5%, bacteriostatic agent 0.45%, triethanolamine 0.8%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.055% and the balance water or preferably comprises the following components in mass fractions:

[0029] Black color paste 23%, glycerol 15%, triethylene glycol 3%, triethylene glycol monobutyl ether 8%, bacteriostatic agent 0.6%, triethanolamine 1%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.1% and the balance water or preferably comprises the following components in mass fractions:

[0030] Black color paste 22%, glycerol 15%, triethylene glycol 2%, triethylene glycol monobutyl ether 6%, bacteriostatic agent 0.4%, triethanolamine 0.7%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.05% and the balance water.

[0031] In the present invention, the black colorant is preferably Alpha-Jet Black SP 01.

[0032] In the present invention, the bacteriostat is preferably Proxel GXL.

[0033] In the present invention, the leveling agent is preferably SURFYNOL 440.

[0034] In the present invention, the lubricant is preferably SURFYNOL 465.

[0035] In the present invention, the silicone oil is preferably TSF4440.

[0036] In the present invention, the black colorant improves the color density, glycerol plays a role in moisturizing, triethylene glycol plays a role in anti-freezing, triethylene glycol monobutyl ether plays a role as a penetrant, triethanolamine is used as a pH regulator, urea is used as a co-solvent, the leveling agent, lubricant and silicone oil play a role as surfactants. The present invention aims to reduce costs and focuses on the compatibility, stability and balance of the ink. By screening suitable solvents, surfactants and other substances, taking reasonable combinations, and controlling performance parameters such as pH value, conductivity, surface tension and viscosity, the obtained dye-based black inkjet ink is a general-purpose dye ink.

[0037] The present invention also provides a preparation method of the dye-based black inkjet ink according to the above technical solution, comprising the following steps:

[0038] Mix the black colorant, glycerol, triethylene glycol, triethylene glycol monobutyl ether, bacteriostat, triethanolamine, urea, leveling agent, lubricant, silicone oil and water to obtain the dye-based black inkjet ink.

[0039] The present invention has no special limitation on the specific mixing method, and any method well-known to those skilled in the art can be used.

[0040] The present invention also provides an application of the dye-based black inkjet ink according to the above technical solution in the printing field, and the application is used for Epson cartridges.

[0041] In the present invention, the Epson cartridges preferably include Epson T2621 series, Epson T1811 series and Epson T0711 series.

[0042] In the present invention, the Epson T2621 series preferably includes T24, T26 or T33; the Epson T1811 series preferably includes T16, T18, T29, T702 or T603; the Epson T0711 series preferably includes T0711 or T1281.

[0043] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Example 1

[0045] A dye-based black inkjet ink, comprising the following components in mass fractions:

[0046] Black pigment paste (Alpha-JetBlack SP 01) 22.5%, glycerol 15%, triethylene glycol 2.5%, triethylene glycol monobutyl ether 6.5%, bacteriostat (Proxel GXL) 0.45%, triethanolamine 0.8%, urea 5%, leveling agent (SURFYNOL440) 0.5%, lubricant (SURFYNOL 465) 1%, silicone oil (TSF4440) 0.055% and the balance of water.

[0047] The preparation method is as follows: Mix the black pigment paste, glycerol, triethylene glycol, triethylene glycol monobutyl ether, bacteriostat, triethanolamine, urea, leveling agent, lubricant, silicone oil and water to obtain the dye-based black inkjet ink.

[0048] Example 2

[0049] A dye-based black inkjet ink, comprising the following components in mass fractions:

[0050] Black pigment paste (Alpha-JetBlack SP 01) 22%, glycerol 15%, triethylene glycol 2%, triethylene glycol monobutyl ether 6%, bacteriostat (Proxel GXL) 0.4%, triethanolamine 0.7%, urea 5%, leveling agent (SURFYNOL 440) 0.5%, lubricant (SURFYNOL 465) 1%, silicone oil (TSF4440) 0.05% and the balance of water.

[0051] The preparation method is as follows: Mix the black pigment paste, glycerol, triethylene glycol, triethylene glycol monobutyl ether, bacteriostat, triethanolamine, urea, leveling agent, lubricant, silicone oil and water to obtain the dye-based black inkjet ink.

[0052] Example 3

[0053] A dye-based black inkjet ink, comprising the following components in mass fractions:

[0054] 23% black pigment paste (Alpha-JetBlack SP 01), 15% glycerol, 3% triethylene glycol, 8% triethylene glycol monobutyl ether, 0.6% bacteriostat (Proxel GXL), 1% triethanolamine, 5% urea, 0.5% leveling agent (SURFYNOL 440), 1% lubricant (SURFYNOL 465), 0.1% silicone oil (TSF4440), and the balance water.

[0055] The preparation method is as follows: Mix the black pigment paste, glycerol, triethylene glycol, triethylene glycol monobutyl ether, bacteriostat, triethanolamine, urea, leveling agent, lubricant, silicone oil and water to obtain a dye-based black inkjet ink.

[0056] Comparative Example 1

[0057] Commercially available 301 ink.

[0058] Comparative Example 2

[0059] Commercially available 302 ink.

[0060] The performance of the dye-based black inkjet ink prepared in this example and the inks of Comparative Examples 1-2 was tested, and the results are shown in Table 1. It can be seen that the performance of the ink of the present invention is basically the same as that of the commercially available ink, but the cost is greatly reduced.

[0061] Table 1 Performance test results of the ink in the example and comparative examples

[0062]

[0063] The color density of the ink of Example 1 and Comparative Examples 1-2 was tested on different cartridges, and the results are shown in Table 2. It can be seen that the color density K of the ink prepared by the present invention is >1.0 on several common cartridges, which is basically the same as that of the commercially available ink and can meet the application of such cartridges.

[0064] Table 2 Color density results of the ink of Example 1 and Comparative Examples 1-2

[0065] Color density K T1631 T2991 T2431 T3351 Example 1 1.07 1.06 1.08 1.08 Comparative Example 1 / / 1.13 1.09 Comparative Example 2 1.06 1.1 / /

[0066] The ink cartridges were prepared using the dye-based black inkjet ink prepared in Example 1, and the results are shown in Table 3.

[0067] Table 3 Ink cartridge samples

[0068]

[0069]

[0070] The prepared ink cartridges were tested, and the results are shown in Table 4. It can be seen that for 1 case of T3361 ink cartridge, the printing was NG after high temperature, and the air guide hole filter was blocked by water ingress. The other 4 sets passed the high-temperature test and 5 sets passed the aging test with normal printing; the tests of the other model ink cartridges were all normal.

[0071] Table 4 Test Results of Ink Cartridges

[0072]

[0073]

[0074] Retention sample tests were carried out, and the results are shown in Table 5. It can be seen that when the ink of the present invention was applied to Epson ink cartridges, the test results of the ink cartridges with retained samples were normal after 6 months.

[0075] Table 5 Test Results of Retention Samples

[0076]

[0077] In summary, the ink of the present invention has a color density that meets daily requirements and a reduced cost when printing on the predetermined model ink cartridges. The system tests on the predetermined model ink cartridges were normal, and the retention sample tests on the predetermined model were normal for half a year, and the retention sample tests passed.

[0078] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A dye-based black inkjet ink, characterized in that, Comprising components with the following mass fractions: Black color paste 22 - 23%, glycerol 15%, triethylene glycol 2 - 3%, triethylene glycol monobutyl ether 6 - 8%, bacteriostat 0.4 - 0.6%, triethanolamine 0.7 - 1%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.05 - 0.1% and the balance water.

2. The dye-based black inkjet ink according to claim 1, wherein Comprising components with the following mass fractions: Black color paste 22.5%, glycerol 15%, triethylene glycol 2.5%, triethylene glycol monobutyl ether 6.5%, bacteriostat 0.45%, triethanolamine 0.8%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.055% and the balance water; or comprising components with the following mass fractions: Black color paste 23%, glycerol 15%, triethylene glycol 3%, triethylene glycol monobutyl ether 8%, bacteriostat 0.6%, triethanolamine 1%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.1% and the balance water; or comprising components with the following mass fractions: Black color paste 22%, glycerol 15%, triethylene glycol 2%, triethylene glycol monobutyl ether 6%, bacteriostat 0.4%, triethanolamine 0.7%, urea 5%, leveling agent 0.5%, lubricant 1%, silicone oil 0.05% and the balance water.

3. The dye-based black inkjet ink according to claim 1 or 2, characterized in that, The bacteriostat is Proxel GXL.

4. The dye-based black inkjet ink according to claim 1 or 2, characterized in that, The leveling agent is SURFYNOL 440.

5. The dye-based black inkjet ink according to claim 1 or 2, characterized in that The lubricant is SURFYNOL 465.

6. The dye-based black inkjet ink according to claim 1 or 2, characterized in that, The silicone oil is TSF4440.

7. The preparation method of the dye-based black inkjet ink according to any one of claims 1 to 6, characterized in that, Including the following steps: Mix black color paste, glycerol, triethylene glycol, triethylene glycol monobutyl ether, bacteriostat, triethanolamine, urea, leveling agent, lubricant, silicone oil and water to obtain the dye-based black inkjet ink.

8. Use of the dye-based black inkjet ink according to any one of claims 1 to 6 in the printing field, characterized in that, The application is for Epson ink cartridges.

9. The application according to claim 8, wherein The Epson ink cartridges include Epson T2621 series, Epson T1811 series and Epson T0711 series.

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