JP2001039007A - Ink composition for obtaining image having excellent printing quality - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form an image having small bleeding by using a plurality of ink compositions as an ink composition to be used for an ink jet recording method, adopting an ink composition containing a phase-transfer catalyst as one of the compositions and also adopting an ink composition containing no phase- transfer catalyst as another one. SOLUTION: Color ink jet recording having small bleeding is realized by using the ink composition containing in combination an ink composition in which a phase-transfer catalyst is added and an ink composition in which no phase-transfer catalyst is added. The composition in which, when diffusion constants are D1 and D2 each defined by the formula, D (m/sec 10-10)=([(mt-m0)/(m∞--m0)]2)π/2h, a ratio D/D is 1.3 or more, is used, wherein m0, mt and m∞ are times 0, t and a penetrating amount of the composition to the medium in an infinitive and h is an initial thickness of the medium.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink jet recording method preferably used for a color ink jet recording method.

2. Description of the Related Art Ink jet recording is a method of ejecting ink as fine droplets from fine nozzles to record characters and figures on the surface of a recording medium. As an ink jet recording method, a method of converting an electric signal into a mechanical signal using an electrostrictive element, intermittently discharging ink stored in a nozzle head portion to record characters and symbols on the surface of a recording medium, a nozzle, The ink stored in the head portion is heated rapidly at a portion very close to the discharge portion to generate bubbles, and the bubbles are intermittently discharged by volume expansion due to the bubbles, thereby recording characters and symbols on the surface of the recording medium. Methods have been put to practical use.

[0003] The ink used for such ink-jet recording has good drying properties of the print, no bleeding of the print, uniform printing on all surfaces of the recording medium, and mixing of colors in the case of multiple colors. There is a demand for such characteristics as not being present. What is particularly problematic here is that when paper is used as a recording medium, bleeding is likely to occur due to fibers having different permeability, and on paper, black ink and color ink bleed at the boundary Is likely to decrease.

In order to prevent bleeding between black and color, as disclosed in JP-A-5-202328,
A method of preventing bleeding by coagulation by reaction of a metal ion and a polymer. As disclosed in JP-A-6-106375, a pigment dispersed with a polymer dispersant using a water-soluble electrolyte such as a salt in a color ink is used. A method of aggregating or thickening,
A method of coagulating a pigment by a protonation reaction between an acidified yellow ink and a carboxyl group-containing dispersant as described in Japanese Patent Application Laid-Open No. 7-1837 has been studied.

[0005] More recently, the use of recycled paper has been expanding. Recycled paper contains various paper components and has a different permeation rate, but is an aggregate.

As a means for reducing image bleeding, a method of heating paper has been studied. However, when heating paper or other objects to be printed when printing, it takes time to start up to a predetermined temperature of a heating unit in the apparatus,
There is a problem that the power consumption of the apparatus main body becomes large, or paper or other printed materials are damaged.

Therefore, it can be said that there is still a need for means for realizing an image with less blur.

[0008]

SUMMARY OF THE INVENTION The inventors of the present invention have now found that combining an ink composition with a phase transfer catalyst and an ink composition without a phase transfer catalyst can effectively suppress image bleeding. I got The present invention is based on this finding.

Accordingly, an object of the present invention is to provide an ink jet recording method for realizing an image with less blur.

Another object of the present invention is to provide an ink set for realizing an image with less blur.

In the ink jet recording method according to the present invention, a plurality of ink compositions are used as the ink composition, at least one of which contains a phase transfer catalyst, and at least one of which is a phase transfer catalyst. Is an ink composition containing no.

In the ink set according to the present invention, at least one is an ink composition containing a phase transfer catalyst, and at least one is an ink composition containing no phase transfer catalyst.

[0013]

DETAILED DESCRIPTION OF THE INVENTION The phase transfer catalyst used in the present invention generally means a nucleophilic anion in an aqueous phase in a reaction system comprising an aqueous phase containing a nucleophilic anion and an organic phase containing an organic substrate reacting therewith. By exchanging the anion with its own, the nucleophilic anion is transferred to the organic phase where the reaction occurs, promoting the reaction, forming an ion pair with the eliminated halogen anion after the reaction, returning to the aqueous phase as a salt again Means a compound.

Although it is not clear why the present invention can realize an image with little bleeding, the following is expected.
That is, it is considered that such a phase transfer catalyst forms a complex with the colorant component in the ink composition, and this complex extremely easily causes an aggregation reaction on the recording medium. Here, by combining with an ink composition having a difference in easiness of the agglutination reaction, that is, an ink composition containing no phase transfer catalyst, bleeding due to the flow of the ink composition into one or the other is suppressed. Conceivable.
However, the above is only an expectation, and the present invention is not limited to the above mechanism.

Specific examples of the phase transfer catalyst include quaternary ammonium salts, and further include sulfonium salts, phosphonium salts, crown ethers, cryptands, dialkyl polyoxyethylene oxides, etc., which can be used in the present invention. it can.

According to a preferred embodiment of the present invention, preferred examples of the phase transfer catalyst include a compound represented by the following formula (I).

[0017] ^{R 1 R 2 R 3 R 4} N + X - (I) ( ^{wherein, R 1, R 2, R} 3, and R ⁴ are either all represent the same lower alkyl groups, or three thereof one is represented by the same represents a lower alkyl group and the remaining one is a phenyl group or a benzyl group, X ^- a halogen ion, OH is ^-, or HSO ₄ ^- are expressed) a lower alkyl group, preferably a linear or branched And alkyl having 1 to 6 carbon atoms.

According to another preferred embodiment of the present invention, specific examples of the phase transfer catalyst include tetramethylammonium chloride, tetraethylammonium bromide, tetraethylammonium chloride, tetraethylammonium iodide, tetrapropylammonium bromide and tetrapropylammonium. Ammonium hydroxide, tetrabutylammonium bromide, tetrabutylammonium chloride, tetrabutylammonium hydroxide, tetrabutylammonium hydrogensulfate, tetrabutylammonium iodide, trioctylmethylammonium chloride,
Trilaurylmethylammonium chloride, di-hardened tallow alkyldimethylammonium acetate, benzyltrimethylammonium chloride, benzyltrimethylammonium hydroxide, benzyltriethylammonium chloride, benzyltributylammonium bromide, benzyltributylammonium chloride, phenyltrimethylammonium chloride,
And those selected from the group consisting of 1-methyl-3-ethylimidazolium chloride.

These phase transfer catalysts may be added as a plurality of mixtures. What is the preferred amount of the phase transfer catalyst added to the ink composition? About 3% to 30% by weight,
Preferably it is about 5 to 15% by weight, more preferably about 6 to 8% by weight.

The ink jet recording method according to the present invention comprises:
A plurality of ink compositions are used as the ink composition, at least one of which is an ink composition containing the above-described phase transfer catalyst, and at least one of which is an ink composition containing no phase transfer catalyst. By forming a color mixture portion using the two ink compositions, it is possible to obtain an image in which color mixture bleeding, that is, so-called bleed, is extremely effectively suppressed.

Further, according to a preferred embodiment of the present invention, an ink composition containing the phase transfer catalyst and an ink composition not containing the phase transfer catalyst for the recording medium to be used are defined by the following formulas. When the diffusion constants are D ¹ and D ² , respectively, it is preferable to use an ink composition having a ratio D ¹ / D ² of 1.3 or more, preferably 2.0 or more, more preferably 3.0 or more.

Diffusion coefficient: D (m / sec × 10 ^-10 ) =
([(Mt−m0) / (m∞−m0)] ² ) π / 2h (where m0, mt, and m∞ are time 0,
t and h represent the amount of the ink composition penetrating into the recording medium at infinity, and h represents the initial thickness of the recording medium.) Preferred measuring devices and measuring methods for these m0, mt, and m∞ are described in Examples below. It is as described.

According to a further preferred aspect of this aspect,
An ink composition having a large diffusion coefficient is printed first, and an ink composition having a small diffusion coefficient is printed later. As a result, an image with less blur can be realized.

According to another preferred embodiment of the present invention, for a recording medium to be used, an ink composition containing the phase transfer catalyst and an ink composition not containing the phase transfer catalyst are represented by the following formulas: Given that the defined final permeation volumes are V ¹ and V ² respectively, the ratio V ¹ / V ² is 1.
4 or more, preferably 2.0 or more, more preferably 3.0
It is preferable to use the ink composition described above.

Final penetration volume: V (cm ³ × 10 ^-5 ) = π
a (2-3 cos θ + cos ³ θ) / 24 sin ³ θ (where, θ represents the contact angle of the ink composition with the recording medium, and a represents the diameter of a pixel formed by one droplet of the ink composition) Preferred measuring devices and measuring methods for θ and a are as described in Examples below.

According to a further preferred aspect of this aspect,
An ink composition having a large final penetration volume is printed first, and an ink composition having a small final penetration volume is printed later. As a result, an image with less blur can be realized.

Further, according to another preferred embodiment of the present invention, when one droplet of the ink composition is applied to a recording medium to be used, the time until the droplet disappears from the surface is defined as a penetration time t. The ratio t ¹ / t ² , where t ¹ and t ² are the permeation times of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst, respectively.
It is preferable to use an ink composition in which t ² is 3.0 or more, preferably 5.0 or more, and more preferably 7.0 or more.

According to a further preferred embodiment of this embodiment,
The ink composition having a short penetration time is printed first, and the ink composition having a long penetration time is printed later. As a result, an image with less blur can be realized.

According to another preferred embodiment of the present invention, the contact angles of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst with respect to the recording medium to be used are each θ. When the ratio is ¹ and θ ² , an ink composition having a ratio θ ¹ / θ ² of 1.7 or more, preferably 2.4 or more, more preferably 3.0 or more is used.

According to a further preferred embodiment of this embodiment,
An ink composition having a small contact angle is printed first, and an ink composition having a large contact angle is printed later. As a result, an image with less blur can be realized.

In a plurality of ink compositions, to which of the ink compositions the phase transfer catalyst is to be added may be appropriately determined. Preferably. Specifically, in the combination of the black ink composition and the color ink composition, it is preferable to add a phase transfer catalyst to any one of the ink compositions. According to a preferred embodiment of the present invention, it is preferable to add a phase transfer catalyst to the color ink composition and use it in combination with a black ink composition to which no phase transfer catalyst is added. In particular, it is preferable to add a phase transfer catalyst to the yellow ink composition, which is liable to cause color mixture bleeding.

Except that a phase transfer catalyst is added, the ink composition used in the present invention may be substantially the same as a conventionally known ink composition for ink jet recording. That is, it may be an ink composition comprising a colorant, an aqueous solvent, and other components.

The colorant may be a dye or a pigment in both the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst. The amount of the pigment added to the ink composition is preferably about 1 to 20% by weight,
More preferably, it is about 3 to 10% by weight.

In the present invention, the aqueous solvent which is the basic solvent of the ink composition comprises an aqueous organic solvent and water. The water-soluble organic solvent improves the solubility of glycol ethers and ink components having low solubility in water contained in the ink, and further improves the permeability to a recording medium, such as paper, or prevents nozzle clogging. For example, alkyl alcohols having 1 to 4 carbon atoms such as ethanol, methanol, butanol, propanol and isopropanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monomethyl ether Acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol mono-n-
Propyl ether, ethylene glycol mono-iso-
Propyl ether, diethylene glycol mono-iso
-Propyl ether, ethylene glycol mono-n-butyl ether, ethylene glycol mono-t-butyl ether, diethylene glycol mono-t-butyl ether, 1-methyl-1-methoxybutanol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol mono -T-
Butyl ether, propylene glycol mono-n-propyl ether, propylene glycol mono-iso-propyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether,
Dipropylene glycol mono-n-propyl ether,
Glycol ethers such as dipropylene glycol mono-iso-propyl ether, formamide, acetamide, dimethyl sulfoxide, sorbit, sorbitan, acetin, diacetin, triacetin, sulfolane, and the like. The amount of the water-soluble organic solvent added to the ink composition is preferably about 3 to 30% by weight, and more preferably about 5 to 15% by weight.

According to a preferred embodiment of the present invention, both the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst preferably contain a penetrant. Preferred specific examples of the penetrant include diethylene glycol mono-n
-Butyl ether, triethylene glycol mono-n-
Butyl ether, propylene glycol mono-n-butyl ether, and dipropylene glycol mono-n-
Butyl ether. With these additions, an image with less blur can be realized. Also,
The amount added in the ink composition is 3% by weight to 30% by weight.
The degree is preferred.

Further, according to a preferred embodiment of the present invention, the ink composition comprises, as its components, a preservative, an antioxidant, a conductivity adjuster, a pH adjuster, a viscosity adjuster, a surface tension adjuster, an oxygen absorber, An additive such as an anti-clogging agent for the nozzle can be included.

According to a preferred embodiment of the present invention, it is preferable to add a water-soluble glycol to the ink composition in order to suppress drying of the ink composition on the front surface of the nozzle. Examples thereof include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polyethylene glycol having a molecular weight of 2000 or less,
1,3-propylene glycol, isopropylene glycol, isobutylene glycol, 1,4-butanediol, 1,3-butanediol, 1,5-pentanediol, 1,6-hexanediol, glycerin, mesoerythritol, pentaerythritol, etc. Is mentioned.

Further, according to a preferred embodiment of the present invention,
In order to suppress drying of the ink composition on the front surface of the nozzle, it is preferable to add a saccharide to the ink composition. Preferred saccharides include monosaccharides and polysaccharides, and more specifically glucose, mannose, fructose, ribose, xylose, arabinose, lactose, galactose, aldonic acid, glucitolose, maltose, cellobiose, sucrose, trehalose, maltotriose. In addition, alginic acid and its salts, cyclodextrins, and celluloses can be used. The amount of the saccharide added to the ink composition is preferably about 0.05% to 30% by weight. Glucose, mannose, fructose,
Ribose, xylose, arabinose, lactose, galactose, aldonic acid, glucitolose, maltose,
More preferable addition amount of cellobiose, sucrose, trehalose, maltotriose, etc. is 3% by weight to 20% by weight.
It is about. Alginic acid and its salts, cyclodextrins and celluloses are preferably added in such an amount that the viscosity of the ink does not become too high.

Further, according to a preferred embodiment of the present invention, it is possible to add another surfactant in order to control the permeability of the ink composition into the recording medium. The surfactant to be added preferably has good compatibility with the other components of the ink composition, and among the surfactants, those having high permeability and high stability are particularly preferable. Specific examples thereof include amphoteric surfactants and nonionic surfactants. As an amphoteric surfactant, lauryl dimethyl amino acetate betaine,
2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine, polyoctylpolyaminoethylglycine and other imidazoline derivatives. Examples of the nonionic surfactant include polyoxyethylene nonyl phenyl ether, polyoxyethylene octyl phenyl ether, polyoxyethylene dodecyl phenyl ether, polyoxyethylene alkyl allyl ether, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, and polyoxyethylene lauryl ether. Ethers such as ethylene alkyl ether and polyoxyalkylene alkyl ether, polyoxyethylene oleic acid,
Esters such as polyoxyethylene oleate, polyoxyethylene distearate, sorbitan laurate, sorbitan monostearate, sorbitan monooleate, sorbitan sesquiolate, polyoxyethylene monooleate, polyoxyethylene stearate, etc. Fluorinated surfactants such as fluorine alkyl esters and perfluoroalkyl carboxylate are exemplified.

Specific examples of preservatives and fungicides include sodium benzoate, sodium pentachlorophenol, sodium 2-pyridinethiol-1-oxide, sodium sorbate, sodium dehydroacetate, 1,2-dibenzide Sothiazolin-3-one (ICI
Proxel CRL, Proxel BDN, Proxel GXL, Proxel XL-2, Proxel TN).

Examples of the pH adjuster, solubilizer and antioxidant include amines such as diethanolamine, triethanolamine, propanolamine and morpholine, and modified products thereof, potassium hydroxide, sodium hydroxide and lithium hydroxide. Inorganic salts, such as ammonium hydroxide, potassium carbonate, sodium carbonate, lithium carbonate, and other phosphates, and N-methyl-2.
Ureas such as pyrrolidone, urea, thiourea, and tetramethylurea; allohanates such as allohanate and methyl allohanate; biurets such as biuret, dimethylbiuret, and tetramethylbiuret; and L-ascorbic acid and salts thereof. Can be

Further, commercially available antioxidants, ultraviolet absorbers and the like can also be used. Examples include Ciba Geigy's Tinuvin 328, 900, 1130, 384,
292, 123, 144, 622, 770, 292, I
rgacor252, 153, Irganox101
0, 1076, 1035, MD1024, etc., or lanthanide oxides.

Further, as the viscosity modifier, rosins,
Alginic acids, polyvinyl alcohol, hydroxypropylcellulose, carboxymethylcellulose, hydroxyethylcellulose, methylcellulose, polyacrylate, polyvinylpyrrolidone, gum arabic and the like can be mentioned.

[0044]

EXAMPLES Measurement of Various Characteristics of Ink Composition The measurement of various characteristics of the ink composition obtained in the following Examples was carried out according to "Paper Dynamics", Vol. 39, No. 12, p. Measurement of Target Wetting ”.

Phase Transfer Catalysts The phase transfer catalyst compounds 1-1 used in the following examples
3 was as follows.

Compound 1: Tetramethylammonium chloride Compound 2: Tetraethylammonium chloride Compound 3: Tetrabutylammonium bromide Compound 4: Tetrabutylammonium hydroxide Compound 5: Tetrabutylammonium hydrogen sulfate Compound 6: Trilaurylmethylammonium chloride Compound 7: Di-hardened tallow alkyldimethylammonium acetate Compound 8: benzyltrimethylammonium chloride Compound 9: benzyltrimethylammonium hydroxide Compound 10: benzyltriethylammonium chloride Compound 11: benzyltributylammonium bromide Compound 12: benzyltributylammonium chloride Compound 13: phenyltrimethylammonium Um chloride

Preparation of Ink Composition Ink compositions having the compositions shown in Tables 1 and 2 below were produced according to a conventional method.

[0048]

[Table 1]

[0049]

[Table 2] Various properties of the ink composition were measured by the methods described above.
The results were as described in the following table.

[0050]

[Table 3]

[0051]

[Table 4]

[0052]

[Table 5]

[0053]

[Table 6]

Evaluation: Black ink and yellow ink
A yellow ink was solid-printed on the mixed-color bleed recording paper, and characters were printed thereon with black ink. Color bleeding at the boundary between the two colors was visually observed.

The combinations of the yellow ink and the black ink were as shown in the following table. Also,
Printing was performed using an ink jet printer MJ-900 (manufactured by Seiko Epson Corporation).
Xerox R paper, Xerox P paper, Xerox 4
024 paper, Conqueror paper, Faborit paper,
Mod Copy paper, Rapid Copy paper, EP
SON EPP paper, Xerox 10 paper, Neenh
a Bond paper, Riccopy 6200 paper, and Yamayuri paper.

As a result, bleeding was not conspicuous on all recording papers.

[0057]

[Table 7]

Claims (27)

[Claims] An ink jet recording method for ejecting droplets of an ink composition and attaching the droplets to a recording medium to perform printing, wherein a plurality of ink compositions are used as the ink composition, and at least one of the ink compositions is used. One is an ink composition comprising at least a colorant, an aqueous solvent, and a phase transfer catalyst, and at least one is an ink composition containing no phase transfer catalyst. 2. The ink jet recording method according to claim 2, wherein a color mixture portion is formed by an ink composition containing the phase transfer catalyst and an ink composition not containing the phase transfer catalyst. 3. The diffusion constants of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst for the recording medium to be used are defined as D ¹ and D ¹ respectively. when ^2, the ratio D ¹ / D ² is the use of an ink composition is 1.3 or more, the ink jet recording method according to claim 1 or 2. Diffusion coefficient: D (m / sec × 10 ⁻¹⁰ ) = ([(mt−
m0) / (m∞−m0)] ² ) π / 2h (wherein m0, mt, and m∞ represent the amount of the ink composition permeating the recording medium at time 0, t, and infinity, respectively). H represents the initial thickness of the recording medium) 4. The ink jet recording method according to claim 3, wherein an ink composition having a large diffusion coefficient is printed first, and an ink composition having a small diffusion coefficient is printed later. 5. The ink composition comprising the phase transfer catalyst and the ink composition not containing the phase transfer catalyst for a recording medium to be used, wherein the final permeation volumes defined by the following formulas are V ¹ and V ¹ , respectively. When V ² , the ratio V ¹ /
^{3. The} ink jet recording method according to claim 1, wherein an ink composition having V2 of 1.4 or more is used. Final penetration volume: V (cm ³ × 10 ⁻⁵ ) = πa (2-3c)
os θ + cos ³ θ) / 24 sin ³ θ (where θ represents the contact angle of the ink composition with the recording medium, and a represents the diameter of a pixel formed by one droplet of the ink composition) 6. The ink jet recording method according to claim 5, wherein an ink composition having a large final penetration volume is printed first, and an ink composition having a small final penetration volume is printed later. 7. An ink composition comprising the phase transfer catalyst, wherein the time required for the droplet to disappear from the surface when one droplet of the ink composition is applied to a recording medium to be used is defined as a permeation time t. And when the permeation time of the ink composition containing no phase transfer catalyst is t ¹ and t ² , respectively, the ratio t
The ink jet recording method according to claim 1, wherein an ink composition having a ratio ¹ / t ² of 3.0 or more is used. 8. The ink jet recording method according to claim 7, wherein the ink composition having a short penetration time is printed first, and the ink composition having a long penetration time is printed later. 9. When the contact angles of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst with respect to the recording medium to be used are defined as θ ¹ and θ ² , respectively, the ratio θ The ink-jet recording method according to claim 1, wherein an ink composition having ¹ / θ ² of 1.7 or more is used. 10. The ink jet recording method according to claim 9, wherein the ink composition having a small contact angle is printed first, and the ink composition having a large contact angle is printed later. 11. A plurality of ink compositions comprising a black ink composition and a color ink composition, and wherein the ink composition comprising the phase transfer catalyst is a black ink composition, wherein the ink composition comprises the phase transfer catalyst. The ink jet recording method according to any one of claims 1 to 10, wherein the non-existent ink composition is a color ink composition. 12. An ink composition comprising a plurality of ink compositions comprising a black ink composition and a color ink composition, wherein the ink composition comprising the phase transfer catalyst is a color ink composition, and comprising the phase transfer catalyst. The inkjet recording method according to any one of claims 1 to 10, wherein the non-existent ink composition is a black ink composition. 13. The ink jet recording method according to claim 1, wherein the phase transfer catalyst is represented by the following formula (I). ^{R 1 R 2 R 3 R 4} N + X - (I) ( ^{wherein, R 1, R 2, R} 3, and R ⁴ are all either represent the same lower alkyl groups, or three identical that Represents a lower alkyl group and the other one represents a phenyl group or a benzyl group, and X ⁻ represents a halogen ion, OH ⁻ or HSO ₄ ⁻ ) 14. The phase-transfer catalyst may be tetramethylammonium chloride, tetraethylammonium bromide, tetraethylammonium chloride, tetraethylammonium iodide, tetrapropylammonium bromide, tetrapropylammonium hydroxide, tetrabutylammonium bromide, tetrabutylammonium chloride. , Tetrabutylammonium hydroxide, tetrabutylammonium hydrogen sulfate, tetrabutylammonium iodide, trioctylmethylammonium chloride,
Trilaurylmethylammonium chloride, di-hardened tallow alkyldimethylammonium acetate, benzyltrimethylammonium chloride, benzyltrimethylammonium hydroxide, benzyltriethylammonium chloride, benzyltributylammonium bromide, benzyltributylammonium chloride, phenyltrimethylammonium chloride,
The inkjet recording method according to claim 1, wherein the inkjet recording method is selected from the group consisting of 1-methyl-3-ethylimidazolium chloride. 15. The ink composition for use in the recording method according to claim 1, comprising at least a colorant, an aqueous solvent, and a phase transfer catalyst. 16. The ink composition according to claim 15, wherein the phase transfer catalyst is represented by the following formula (I). R ¹ R ² R ³ R ⁴ N ⁺ X ⁻ (I) (wherein, R ¹ , R ² , R ³ and R ⁴ all represent the same lower alkyl group, or three of them represent the same one and the remaining represents a lower alkyl group represents a phenyl group or a benzyl group, X ^- is a halogen ion, OH - represents a) ^-, or HSO ₄ 17. The phase transfer catalyst may be tetramethylammonium chloride, tetraethylammonium bromide, tetraethylammonium chloride, tetraethylammonium iodide, tetrapropylammonium bromide, tetrapropylammonium hydroxide, tetrabutylammonium bromide, tetrabutylammonium chloride. , Tetrabutylammonium hydroxide, tetrabutylammonium hydrogen sulfate, tetrabutylammonium iodide, trioctylmethylammonium chloride,
Trilaurylmethylammonium chloride, di-hardened tallow alkyldimethylammonium acetate, benzyltrimethylammonium chloride, benzyltrimethylammonium hydroxide, benzyltriethylammonium chloride, benzyltributylammonium bromide, benzyltributylammonium chloride, phenyltrimethylammonium chloride,
The ink composition according to claim 1, wherein the ink composition is selected from the group consisting of 1-methyl-3-ethylimidazolium chloride. 18. The ink composition according to claim 15, wherein the phase transfer catalyst is contained in a range of 3% by weight to 30% by weight. 19. The ink composition according to claim 15, wherein the colorant is a dye or a pigment. 20. A recorded matter on which recording has been carried out by the ink jet recording method according to any one of claims 1 to 14. 21. An ink set comprising a plurality of ink compositions, at least one of which is an ink composition comprising at least a colorant, an aqueous solvent, and a phase transfer catalyst. An ink set, one of which is an ink composition containing no phase transfer catalyst. 22. The diffusion constants of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst for the recording medium to be used are defined as D ¹ and D, respectively. When the ratio is ² , the ratio D ¹ / D
22. The ink set according to claim 21, wherein ² is at least 1.3. Diffusion coefficient: D (m / sec × 10 ⁻¹⁰ ) = ([(mt−
m0) / (m∞−m0)] ² ) π / 2h (wherein m0, mt, and m∞ represent the amount of the ink composition permeating the recording medium at time 0, t, and infinity, respectively). H represents the initial thickness of the recording medium) 23. The final permeation volumes of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst for the recording medium to be used are defined as V ¹ and V ¹ , respectively. When V ² , the ratio V ¹
/ V ² is 1.4 or more, the ink set according to claim 21. Final penetration volume: V (cm ³ × 10 ⁻⁵ ) = πa (2-3c)
os θ + cos ³ θ) / 24 sin ³ θ (where θ represents the contact angle of the ink composition with the recording medium, and a represents the diameter of a pixel formed by one droplet of the ink composition) 24. An ink composition comprising the phase transfer catalyst, wherein the time required for the droplet to disappear from the surface when one droplet of the ink composition is applied to a recording medium to be used is defined as a permeation time t. and when respectively t ¹ and t ² of the penetration time of the ink composition without the phase transfer catalyst is a ratio t ¹ / t ² is 3.0 or more, the ink set according to claim 21. 25. When the contact angles of the ink composition containing the phase transfer catalyst and the ink composition not containing the phase transfer catalyst with respect to the recording medium to be used are defined as θ ¹ and θ ² , respectively, ¹ / θ ² is not less than 1.7,
The ink set according to claim 21. 26. A plurality of ink compositions comprising a black ink composition and a color ink composition, and wherein the ink composition comprising the phase transfer catalyst is a black ink composition, wherein the ink composition comprises the phase transfer catalyst. The ink set according to any one of claims 21 to 25, wherein the no ink composition is a color ink composition. 27. A plurality of ink compositions comprising a black ink composition and a color ink composition, and wherein the ink composition comprising the phase transfer catalyst is a color ink composition, wherein the ink composition comprises the phase transfer catalyst. The ink set according to any one of claims 21 to 25, wherein the no ink composition is a black ink composition.