JPH09194781A - Water-based ink for ink jet recording - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a water-based ink for ink jet recording, excellent in accuracy in the jetting direction and properties, of filling and feeding the ink to a nozzle and capable of carrying out the high-grade printing at a high speed by respectively regulating contact angles with an ink discharging nozzle surface and an ink flow passage materials. SOLUTION: This water-based ink for ink jet recording is obtained by regulating contact angles at 25 deg.C so as to respectively provide >=30 deg. and <=50 deg. with an ink discharging nozzle surface and an ink flow passage materials. The ink is prepared by including, e.g. a compound of the formula R1 -O-(CH2 CH2 O)h CH2 COOM [R1 is a 6-14C (branched) alkyl; M is an alkali metallic ion, a quaternary ammonium, a quaternary phosphonium or an alkanolammonium; (h) is 3-12] or a compound of the formula [R2 is a 5-7C (branched) alkyl)] in an amount of 0.05-10wt.% based on the total amount of the ink therein.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a water-based ink suitable for ink jet recording, and particularly to a water-based ink having high ejection characteristics and giving a high-quality image in high-speed printing. More specifically, the present invention relates to a water-based ink having characteristics that it is difficult to wet the material for forming the ink ejection nozzle surface and easily wets the material for forming the ink flow path.

[0002]

2. Description of the Related Art In recent years, ink jet printers have become popular because of their advantages such as low noise and low running cost, and color printers capable of printing on plain paper have also been put on the market. Inkjet recording method is ink ejection port (nozzle)
The ink droplets are ejected from the sheet to form an image on a recording medium such as paper or OHP. The ink ejection nozzle surface used in the recording method may be a surface having uniform wettability with respect to ink or a surface having ink repellency. In the ink jet recording head, the material forming the surface having the ink ejection port is plastic,
Examples of the material include glass and metal, but in the case of an inkjet recording method that is premised on that the nozzle plate is not wet (having ink repellency), it is important that the ink and the ejection nozzle surface have uniform ink repellency. That is to hold. If the ink repellency to the ejection nozzle surface is non-uniform, the ink will accumulate in a part of the periphery of the ink ejection nozzle surface, and there will be no ink in the other parts.
When ink is ejected from the nozzle as it is,
The direction of flight of the ink is pulled toward the side of the ink pool, causing it to deviate from the normal direction (flying curve),
This will be a factor causing image quality abnormalities such as solid fill. From this, it is understood that the nozzle surface preferably has uniform ink repellency. On the other hand, in recent years, in order to rationalize production and reduce costs, plastic materials such as acrylic, polysulfone, and polycarbonate have been increasingly used as materials for forming ink flow paths. However, as described above, the ink that does not easily wet the nozzle surface also becomes an ink that does not easily wet the ink flow path forming material. As a result, it becomes difficult for ink to enter the ink flow path. In addition, since bubbles mixed in the ink flow path are less likely to escape, there is a problem that the reliability of ink ejection is significantly reduced. Further, particularly in the case of high-speed printing, if the wettability of the ink to the ink flow path is low, the ink supply (refill) will not be in time, so stable ink ejection cannot be obtained and the image quality deteriorates. Remarkably appears. A recording liquid characterized by adding a surfactant to the ink in order to easily wet the ink flow path to the ink nozzle is disclosed in JP-A-6-240193. In this case, a surfactant is added. On the contrary, when the amount is large, the nozzle surface is likely to get wet. Further, as the water repellent treatment for the nozzle surface, JP-A-4-357043 discloses a method of bringing a liquid having a water repellent effect into contact with the nozzle surface. However, a uniform water repellent surface may not be obtained depending on the contact mode. .

[0003]

An object of the present invention is to provide a water-based ink suitable for ink jet recording, particularly a water-based ink having stable ejection characteristics and giving a high-quality image in high-speed printing. More specifically, it is an object of the present invention to provide a water-based ink that has a property that it is difficult to wet a material forming a nozzle surface having an ink ejection port and that a material forming an ink flow path is easily wet.

[0004]

According to the present invention, the contact angle with respect to the material of the ink discharge nozzle surface is 30 ° or more at 25 ° C., and the contact angle with respect to the material of the ink flow path is 50 ° or less at 25 ° C. It was possible to achieve the above-mentioned object by providing a water-based ink for ink-jet recording having the above. In particular, according to the water-based ink for ink jet recording of the present invention, stable ink ejection characteristics can be obtained in high-speed printing at 8 kHz or higher. In addition, the present invention satisfies the above characteristics, improves wettability to the ink flow path without hindering the ink repellency of the ink ejection nozzle surface, and enhances penetrability into paper, and particularly For the purpose of enhancing the penetrability in the vertical direction rather than in the horizontal direction to form an image of good quality, a polyoxyethylene alkyl ether of the following formula (I) is used as an anionic surfactant (A) in an aqueous ink for inkjet recording. Acetic acid and / or a dialkylsulfosuccinate of the following formula (II), (B) a nonionic surfactant of the following formula (III) and / or the following formula (IV), or (C) the surfactant (I) And / or (II), and the surfactant (III) and / or (IV) is further contained in the ink.

[0005]

Embedded image

[Chemical 6] [In the above formulas (I) and (II), R ₁ has 6 to 6 carbon atoms.
14 which may be branched alkyl group, R _2: the same or different which may be optionally branched alkyl group having a carbon number of 5 to 7, M: an alkali metal ion, quaternary ammonium, 4th At least one cation selected from the group consisting of primary phosphonium and alkanol ammonium, h: 3 to 12]

Embedded image [In the above formula (III), R: a carbon chain having 6 to 14 carbon atoms which may be branched, k: 5 to 40]

Embedded image [In the formula (IV), m and n: 0 to 40, where m
And n may be the same or different. ]

In the above formula (I), h is preferably in the range of 3 to 12 from the viewpoint of the characteristics of the image formed. Specific examples of the surfactants of the above formulas (I) and (II) used in the present invention are shown below in free acid form, but the surfactants of the above formulas (I) and (II) are not limited thereto. Not something.

Embedded image

Embedded image

The above formulas (III) and (I
Specific examples of the surfactant of V) are shown below.
The surfactants of (IV) and (IV) are not limited to these.

Embedded image

Embedded image The content of the surfactant of formulas (I) to (IV) in the ink is 0.05 wt% to 10 wt%, preferably 0.1 w.
t% to 5 wt%, more preferably 0.1 wt
% To 3 wt%. The content of surfactant in the ink is
When it is less than 0.05 wt%, the wettability to the ink flow channel is insufficient, and when it is more than 10 wt%, the wettability to the ink flow channel is sufficient, but conversely, it becomes easy to wet the ink ejection nozzle surface. Ink repellency is significantly deteriorated.

Further, in the present invention, for the purpose of further improving the ink repellency to the ink ejection nozzle surface and at the same time preventing the drying property of the ink, the water solubility of the polyhydric alcohol alkyl ether and / or the polyvalent aryl ethers. It is characterized in that an organic solvent is contained in the ink. Examples of the polyhydric alcohol alkyl ethers include ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether,
Diethylene glycol monobutyl ether, tetraethylene glycol monomethyl ether, propylene glycol monoethyl ether and the like, and examples of the polyhydric alcohol aryl ethers include ethylene glycol monophenyl ether, ethylene glycol monobenzyl ether and the like, particularly preferably, It is diethylene glycol monobutyl ether. The content of these water-soluble organic solvents in the ink is 5 wt% to 30%.
wt% is preferred. If it is added in an amount of 30 wt% or more, the viscosity of the water-based ink becomes high, which often affects the ejection stability. In addition, examples of the water-soluble organic solvent used in combination with the water-soluble organic solvent for the purpose of preventing the ink from drying include the water-soluble organic solvents shown below. Ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, 1,5-pentanediol, 1,6-hexanediol, glycerol, 1,2,6-hexanetriol, 1,2,4-butanetriol, 1 , 2,3-butanetriol, polyhydric alcohols such as petriol, N-methyl-2-pyrrolidone, N-hydroxyethyl-2-pyrrolidone, 2-
Pyrrolidone, 1,3-dimethylimidazolidinone, ε-
Nitrogen-containing heterocyclic compounds such as caprolactam, amides such as formamide, N-methylformamide, and N, N-dimethylformamide; amines such as monoethanolamine, diethanolamine, triethanolamine, monoethylamine, diethylamine and triethylamine;
Sulfur-containing compounds such as dimethyl sulfoxide, sulfolane, and thiodiethanol; propylene carbonate; ethylene carbonate; and γ-butyrolactone. Further, the present invention is characterized in that the outermost surface of the ink ejection nozzle surface is subjected to a water repellent treatment, preferably formed by fluoropolymer eutectoid plating. By performing such a treatment, it becomes possible to maintain uniform water repellency on the nozzle surface. Examples of the fluorine-based polymer include polytetrafluoroethylene (PTFE), polyperfluoroalkoxybutadiene (PFA), and polyfluorovinylidene, but polytetrafluoroethylene (PTFE) is preferably used. The matrix of the plating layer is not particularly limited, and examples thereof include nickel, copper, zinc and the like. Methods for forming these water-repellent treated surfaces are disclosed in JP-A-63-3963, JP-A-2-55140, JP-A-1-280566, and JP-A-4-29566.
It can be easily manufactured by the method described in 294145, JP-A-4-339656 and the like.

As the water-soluble dye used in the present invention,
Dyes classified into acid dyes, direct dyes, basic dyes, reactive dyes and food dyes in the color index,
A material having excellent water resistance and light resistance is used. These are added to the extent that the effect is not excluded. Specific examples of these dyes include acid dyes and food dyes such as C.I. I. Acid. Yellow 17,23,42,4
4,79,142 C.I. I. Acid. Red 1,8,13,14,1
8, 26, 27, 35, 37, 42, 52, 82, 8
7, 89, 92, 97, 106, 111, 114, 11
5,134,186,249,254,289 C.I. I. Acid. Blue 9,29,45,92,2
49 C.I. I. Acid. Black 1,2,7,24,2
6,94 C.I. I. hood. Yellow 3,4 C.I. I. hood. Red 7, 9, 14 C.I. I. hood. Black 1,2 as a direct dye C.I. I. direct. Yellow 1,12,24,2
6,33,44,50,86,120,132,14
2,144 C.I. I. direct. Red 1,4,9,13,1
7, 20, 28, 31, 39, 80, 81, 83, 8
9,225,227 C.I. I. direct. Orange 26,29,62,1
02 C.I. I. direct. Blue 1,2,6,15,2
2,25,71,76,79,86,87,90,9
8,163,165,199,202 C.I. I. direct. Black 19,22,32,3
8, 51, 56, 71, 74, 75, 77, 154, 1
68,171 as a basic dye, C.I. I. basic. Yellow 1,2,11,13,
14, 15, 19, 21, 23, 24, 25, 28, 2
9, 32, 36, 40, 41, 45, 49, 51, 5
3,63,64,65,67,70,73,77,8
7,91C. I. basic. Red 2,12,1
3,14,15,18,22,23,24,27,2
9,35,36,38,39,46,49,51,5
2,54,59,68,69,70,73,78,8
2, 102, 104, 109, 112 C.I. I. basic. Blue 1,3,5,7,9,2
1,22,26,35,41,45,47,54,6
2,65,66,67,69,75,77,78,8
9, 92, 93, 105, 117, 120, 122, 1
24, 129, 137, 141, 147, 155 C.I. I. basic. Black 2,8 As a reactive dye, C.I. I. Reactive. Black 3,4,7,11,
12, 17 C.I. I. Reactive. Yellow 1,5,11,1
3,14,20,21,22,25,40,47,5
1, 55, 65, 67 C.I. I. Reactive. Red 1,14,17,2
5,26,32,37,44,46,55,60,6
6, 74, 79, 96, 97 C.I. I. Reactive. Blue 1,2,7,14,1
5, 23, 32, 35, 38, 41, 63, 80, 95, etc. can be used. Particularly, acid dyes and direct dyes can be preferably used. Further, of course, a newly developed dye for inkjet can also be used. For example, Projet Fast B marketed by Zeneca
rack 2, Projet Fast Agent
a 2, Projet Fast Yellow 2,
Projet Fast Cyan 2 (registered trade name)
And the like.

As the pigments, organic pigments such as azo type, phthalocyanine type, anthraquinone type, quinacridone type, dioxazine type, indigo type, thioindigo type, perylene type, isoindrenone type, aniline black, azomethine type, rhodamine B lake pigment, carbon are used. Examples of the inorganic pigment include iron oxide, titanium oxide, calcium carbonate, barium sulfate, aluminum hydroxide, barium yellow, dark blue, cadmium red, chrome yellow, and metal powder. As a pigment dispersant, in a natural system as a hydrophilic polymer, gum arabic, traggan gum, guar gum, karaya gum, locust bean gum,
Arabinogalactone, pectin, quince seed starch and other vegetable macromolecules, alginic acid, carrageenan, seaweed macromolecules such as agar, gelatin, casein, albumin,
Animal-based polymers such as collagen, xanthene gum, microbial-based polymers such as dextran, in semi-synthetic systems, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, fibrin-based polymers such as carboxymethyl cellulose, sodium starch glycolate, Starch-based polymers such as sodium starch phosphate, seaweed-based polymers such as sodium alginate and propylene glycol alginate, vinyl-based polymers such as polyvinyl alcohol, polyvinylpyrrolidone, and polyvinyl methyl ether, and non-crosslinked Acrylamide, polyacrylic acid and its alkali metal salts, acrylic resins such as water-soluble styrene-acrylic resin, water-soluble styrene-maleic acid resin, water-soluble vinylnaphthalene acrylate Resin, water-soluble vinyl naphthalene maleic acid resin, polyvinyl pyrrolidone, polyvinyl alcohol, alkali metal salt of β-naphthalene sulfonic acid formalin condensate, polymer having side chain of salt of cation functional group such as quaternary ammonium or amino group Examples of the compound include natural polymer compounds such as shellac.

To the ink of the present invention, conventionally known additives can be added in addition to the above solvent and colorant. For example, antiseptic / antifungal agents include sodium dehydroacetate, sodium sorbate, and 2-pyridinethiol-1.
-Sodium oxide, sodium benzoate, sodium pentachlorophenol and the like can be used in the present invention.
As the pH adjuster, any substance can be used as long as it can adjust the pH to 7 or more without adversely affecting the ink to be prepared. Examples thereof include amines such as diethanolamine and triethanolamine, hydroxides of alkali metal elements such as lithium hydroxide, sodium hydroxide and potassium hydroxide, ammonium hydroxide, and
Examples thereof include quaternary ammonium hydroxide, quaternary phosphonium hydroxide, and alkali metal carbonates such as lithium carbonate, sodium carbonate and potassium carbonate. As the chelating agent, for example, sodium ethylenediaminetetraacetate,
Examples include sodium nitrilotriacetate, sodium hydroxyethylethylenediaminetriacetate, sodium diethylenetriaminepentaacetate, and sodium uramildiacetate. Examples of the rust preventive agent include acidic sulfite, sodium thiosulfate, ammonium thiodiglycolate, diisopropylammonium nitrite, pentaerythritol tetranitrate,
And dicyclohexylammonium nitrite. In addition, a water-soluble ultraviolet absorber and a water-soluble infrared absorber can be further added depending on the purpose.

[0012]

EXAMPLES Examples of the present invention and comparative examples are shown below. Example 1 A composition having the following formulation was dissolved by stirring at 60 ° C., and after standing to cool at room temperature, lithium hydroxide 1 was added to adjust the pH to 9-10.
Ink 1 was prepared by adjusting with a 0% solution and filtering this with a 0.22 μm Teflon filter. Projet Fast Cyan2 3 wt% Compound Specific Example (I-1) 1 wt% Ethylene glycol 5 wt% Glycerol 5 wt% Ion-exchanged water Residual amount

Example 2 Ink 2 was prepared in the same manner as in Example 1 except that the following composition was used. Projet Fast Cyan2 3 wt% Compound Specific Example (II-1) 1.5 wt% Diethylene glycol 5 wt% Glycerol 5 wt% Ion-exchanged water Residual amount

Example 3 Ink 3 was prepared in the same manner as in Example 1 except that the following composition was used.
Was prepared. Projet Fast Cyan2 3% by weight Nonipol 400 1.5% by weight (In compound III, R = C ₉ H ₁₉ , k = 40) Propylene glycol 5% by weight Glycerol 10% by weight Ion-exchanged water balance

Example 4 Ink 4 was prepared in the same manner as in Example 1 except that the following composition was used.
Was prepared. Projet Fast Cyan2 3% by weight Nonipol 100 1.5% by weight (in compound III, R = C ₉ H ₁₉ , k = 10) Ethylene glycol 10% by weight Glycerol 10% by weight Ion-exchanged water balance

Example 5 Ink 5 was prepared in the same manner as in Example 1 except that the following composition was used.
Was prepared. CI. Direct black 168 4% by weight Compound specific example (I-4) 0.1% by weight Diethylene glycol monobutyl ether 10% by weight Glycerol 5% by weight Ion-exchanged water balance

Example 6 Ink 6 was prepared in the same manner as in Example 5 except that the content of the compound specific example (I-4) was changed to 1% by weight.

Example 7 Ink 7 was prepared in the same manner as in Example 5 except that the content of the compound specific example (I-4) was changed to 2% by weight.

Example 8 Ink 8 was prepared in the same manner as in Example 1 except that the following composition was used.
Was prepared. Projet Fast Cyan2 3% by weight Compound specific example (II-1) 1% by weight Diethylene glycol monobutyl ether 10% by weight Ethylene glycol 8% by weight Glycerol 2% by weight Ion-exchanged water balance

Example 9 Ink 9 was prepared in the same manner as in Example 1 except that the following composition was used.
Was prepared. Projet Fast Cyan2 3% by weight Nonipol 100 1.5% by weight Diethylene glycol monobutyl ether 20% by weight Ion-exchanged water balance

Comparative Example 1 Ink 10 was prepared in the same manner as in Example 1 except that the following composition was used. Projet Fast Cyan2 3% by weight BT7 (manufactured by Nikko Chemicals) 1% by weight 2-pyrrolidone 5% by weight Ethylene glycol 5% by weight Ion-exchanged water balance

Comparative Example 2 Instead of the compound (I-1) in Example 1, a silicon-based surfactant SH3746 (manufactured by Toray Dow Corning).
Ink 11 was prepared in the same manner as in Example 1 except that was used.

Comparative Example 3 Instead of the compound (II-1) in Example 2, a silicon-based surfactant SH3771 (manufactured by Toray Dow Corning).
Ink 12 was prepared in the same manner as in Example 1 except that was used.

Comparative Example 4 In Example 5, the content of the compound (I-4) was 0.01.
Ink 13 was prepared in the same manner as in Example 5 except that the content was changed to wt%.
Was prepared.

Comparative Example 5 Ink 14 was prepared in the same manner as in Example 5 except that the content of the compound (I-4) in Example 5 was changed to 15% by weight.

Comparative Example 6 The procedure of Example 1 was repeated except that the following components were used.
Ink 15 was prepared. Projet Fast Cyan2 3% by weight BT7 0.5% by weight Ethylene glycol monophenyl ether 15% by weight Diethylene glycol monobutyl ether 20% by weight Ion-exchanged water balance

The following tests were conducted on the inks of Examples 1-9 and Comparative Examples 1-6. (1) Contact Angle Measurement The contact angles of the above 15 kinds of inks were measured at room temperature with respect to the ink discharge nozzle plate forming material and the ink flow path forming material. A material formed by nickel-PTFE eutectoid plating was used as the discharge nozzle plate material, and an acrylic resin was used as the ink flow path material. The contact angle was measured by measuring the contact angle 30 seconds after the ink was dropped. The measuring device is KYOWA CONTAC.
TANGLEMETER CA-D [Kyowa Scientific Co., Ltd.
Manufactured). (2) Image quality evaluation Printing was performed with an inkjet printer that used the laminated PZT to pressurize the liquid chamber flow path, and the character quality was visually evaluated (the ink ejection nozzle surface and the ink flow path material are different from those used when measuring the contact angle). Is the same).

The above results are shown in Tables 1 and 2.

[Table 1]

[Table 2] ⊚: High quality of letters without satellites and fading of letters. ◯: Some fading of the characters is seen, but the character quality is of a level that does not pose a problem visually. X: Satellite and fading of letters are seen. XX: Satellite, letters are very faint and difficult to read. As described above, in Comparative Examples 1 to 5, since the ink repellency to the ink ejection nozzle surface is insufficient, an abnormal ejection direction occurs to adversely affect the character quality. In Comparative Example 4, It can be seen that, since the wettability to the ink flow path is insufficient, the ink supplyability to the nozzle is poor (or there is a high possibility that bubbles are mixed) and the ejection stability is poor. In Comparative Example 6, the ejection stability was poor because the ink viscosity was high.

[0029]

【The invention's effect】

1. Claim 1 It is possible to provide a water-based ink for inkjet recording which has high ink ejection reliability particularly in high-speed printing and gives a high-quality image. Since the ink has a characteristic that it is hard to get wet with the material forming the nozzle surface having an ink ejection port, it is possible to obtain a high ejection directionality accuracy without flight bending, and a characteristic that the ink flow passage is easily wetted. By improving the ink filling property and smoothly supplying the ink from the ink cartridge to the nozzles, stable ink ejection characteristics can be obtained especially in high-speed printing at 8 kHz or higher. 2. According to a second aspect of the present invention, by using a specific anionic surfactant, the wettability with respect to the ink flow path is improved without hindering the ink repellency, and as a result, the ink filling property and the ink supply property from the cartridge to the nozzle are improved. In addition, it is possible to provide a water-based ink for inkjet recording which has improved wettability to paper. 3. According to a third aspect of the present invention, by using a specific nonionic surfactant, an improvement in wettability with respect to an ink flow path is achieved without hindering ink repellency, and as a result, an ink filling property and an ink supply property from a cartridge to a nozzle are improved. Can and
It is possible to provide a water-based ink for inkjet recording having improved wettability to paper. 4. [Claim 4] By defining the content of the surfactant in the aqueous ink in a specific range, the effects of the inventions of claims 1 to 3 can be more effectively exhibited. 5. According to a fifth aspect of the invention, by containing a specific water-soluble organic solvent in the ink, it is possible to provide a water-based ink having a property of being harder to wet the ink ejection nozzle surface, and at the same time, it is possible to prevent the ink from drying. . 6. Claim 6 By defining the content of the water-soluble organic solvent in the ink, the effect of the invention of claim 5 can be more effectively exhibited. 7. Claim 7 When used in an inkjet printer having a water-repellent ink ejection nozzle surface, it is possible to obtain a high ejection directionality accuracy without flying bending, and as a result, a good image can be formed on a recording medium. .

Front Page Continuation (72) Inventor Masato Igarashi 1-3-6 Nakamagome, Ota-ku, Tokyo Within Ricoh Co., Ltd. (72) Akiko Konishi 1-3-6 Nakamagome, Ota-ku, Tokyo Within Ricoh Co., Ltd. (72) Inventor Hirotaka Mochizuki 1-3-6 Nakamagome, Ota-ku, Tokyo In Ricoh Company (72) Inventor Takanori Tsuruki 1-3-3 Nakamagome, Ota-ku, Tokyo In Ricoh Company (72) Inventor Masayuki Oyano 1-3-6 Nakamagome, Ota-ku, Tokyo Inside Ricoh Co., Ltd.

Claims (7)

[Claims] 1. A water-based ink for inkjet recording, which has a contact angle with respect to the material of the ink discharge nozzle surface of 30 ° or more at 25 ° C. and a contact angle with respect to the material of the ink flow path of 50 ° or less at 25 ° C. 2. A surfactant containing a polyoxyethylene alkyl ether acetate of the following formula (I) and / or a dialkylsulfosuccinate of the following formula (II) as a surfactant.
The water-based ink for inkjet recording described. Embedded image Embedded image [In the above formulas (I) and (II), R ₁ has 6 to 6 carbon atoms.
14 which may be branched alkyl group, R _2: the same or different which may be optionally branched alkyl group having a carbon number of 5 to 7, M: an alkali metal ion, quaternary ammonium, 4th At least one cation selected from the group consisting of primary phosphonium and alkanol ammonium, h: 3 to 12] 3. The water-based inkjet recording ink according to claim 1, which contains a surfactant represented by the following general formula (III) and / or (IV) as the surfactant. Embedded image [In the above formula (III), R: an optionally branched carbon chain having 6 to 14 carbon atoms, k: 5 to 40] [In the formula (IV), m and n: 0 to 40, where m
And n may be the same or different. ] 4. The content of the surfactant is 0.05 wt%
The water-based ink for ink jet recording according to claim 1, 2 or 3, which is 10 wt%. 5. The water-based ink for ink jet recording according to claim 1, which contains a polyhydric alcohol alkyl ether and / or a polyhydric alcohol aryl ether water-soluble organic solvent. 6. The water-based inkjet recording ink according to claim 5, wherein the content of the polyhydric alcohol alkyl ether and / or the polyhydric alcohol aryl ether water-soluble organic solvent is 5 to 30 wt%. 7. The water-based ink for ink jet recording according to claim 1, wherein the ink ejection nozzle surface is used in an ink jet printer having a water repellent nozzle surface.