WO2005123843A1 - 分散性色材とその製造方法、それを用いた水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 - Google Patents
分散性色材とその製造方法、それを用いた水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 Download PDFInfo
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- WO2005123843A1 WO2005123843A1 PCT/JP2005/011890 JP2005011890W WO2005123843A1 WO 2005123843 A1 WO2005123843 A1 WO 2005123843A1 JP 2005011890 W JP2005011890 W JP 2005011890W WO 2005123843 A1 WO2005123843 A1 WO 2005123843A1
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- colorant
- ink
- fine particles
- coloring material
- dispersible
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0004—Coated particulate pigments or dyes
- C09B67/0008—Coated particulate pigments or dyes with organic coatings
- C09B67/0013—Coated particulate pigments or dyes with organic coatings with polymeric coatings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0002—Grinding; Milling with solid grinding or milling assistants
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
- C09B67/0085—Non common dispersing agents
- C09B67/009—Non common dispersing agents polymeric dispersing agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B68/00—Organic pigments surface-modified by grafting, e.g. by establishing covalent or complex bonds, in order to improve the pigment properties, e.g. dispersibility or rheology
- C09B68/40—Organic pigments surface-modified by grafting, e.g. by establishing covalent or complex bonds, in order to improve the pigment properties, e.g. dispersibility or rheology characterised by the chemical nature of the attached groups
- C09B68/42—Ionic groups, e.g. free acid
- C09B68/425—Anionic groups
- C09B68/4253—Sulfonic acid groups
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/10—Treatment with macromolecular organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
Definitions
- the present invention relates to a dispersible coloring material and a method for producing the same, and an aqueous ink using the same,
- the present invention relates to an ink tank, an ink jet recording apparatus, an ink jet recording method, and an ink jet recorded image.
- the ink jet method is a method for recording images and characters by flying minute droplets of ink from a nozzle to reach a recording medium (paper, etc.) based on various operating principles, and is high-speed, low-noise, and multicolor. It is easy to use, has high flexibility in recording patterns, and does not require development and fixing operations. In particular, in recent years, full-color water-based ink jet recording technology has made remarkable progress, and it is inferior to multi-color printing by the conventional plate-making method and printing by the colorless photographic method. It is also possible to form images, and when the number of copies is small, a printed matter can be obtained at a lower cost than ordinary multicolor printing or printing, and is being widely applied to the field of full-color image recording.
- Dyes and pigments are mainly used as the coloring materials used in the aqueous ink jet recording method, and water-soluble dyes have been mainly used in the past because of their high easiness and high coloring property as aqueous inks.
- As a coloring material of an aqueous ink jet recording ink capable of realizing high weather resistance and high water resistance of an image development of a coloring material which is essentially insoluble in water, particularly an ink using a pigment, has been energetically advanced.
- Japanese Patent Application Laid-Open Nos. 8-183920 and 2003-34770 discloses that “a water-based colored fine particle dispersion containing a water-insoluble colorant, wherein the colored fine particle dispersion comprises a water-insoluble colorant dispersed in an aqueous medium in the presence of a dispersant. Polymerized by adding a Bull monomer after dispersing in water, and exhibits dispersion stability when the dispersant disperses a water-insoluble colorant, and shows the vinyl stability in the presence of only the dispersant.
- An aqueous colored fine particle dispersion characterized by poor stability of the latex produced when a monomer is polymerized is disclosed, and ⁇
- the dispersion stability and printing suitability are excellent, there is no dependence on paper type, the metallic luster is low, and the water resistance is high. It is said that an ink jet recording ink having excellent properties, light fastness and scratch resistance was obtained.
- An object of the present invention is to solve these problems of the prior art, and to provide a dispersible coloring material that has sufficiently high dispersion stability, does not separate the resin component from the coloring material, and is stable for a long period of time, and its simple production. It is to provide a method. Further, another object of the present invention is to provide a water-based ink, an ink tank, an ink jet recording apparatus, and an ink which are excellent in ejection stability and suitable for ink jet recording by using such an excellent dispersible colorant. An object of the present invention is to provide a jet recording method and an ink jet recorded image.
- the present inventors have made a novel shape of a dispersible coloring material as a means for solving the above-mentioned problem, thereby essentially eliminating the need for a surfactant or a polymer dispersant.
- a dispersible colorant was obtained that maintained high dispersion stability and exhibited long-term high storage stability without the resin component being detached from the colorant.
- the novel dispersible colorant has sufficient adhesiveness or film forming property on recording paper
- the use of the dispersible colorant provides sufficient discharge stability and dispersion for ink jet recording.
- the present invention relates to a dispersible colorant having a colorant and charged resin pseudo fine particles having a sulfonic acid group smaller than the colorant, wherein the surface functional group of the sulfonic acid group of the dispersible colorant is provided. It is a dispersible colorant characterized by having a density of 100 / zmol Zg or more.
- the present invention also relates to a method for producing a dispersible colorant for producing the above-mentioned dispersible colorant, wherein the step of subjecting a radically polymerizable monomer to aqueous precipitation polymerization in an aqueous dispersion of the colorant comprises sulfonic acid.
- a method for producing a dispersible color material comprising fixing a chargeable resin pseudo fine particle having a group to a color material.
- the present invention is an aqueous ink comprising the dispersible coloring material.
- the present invention is an ink tank comprising the aqueous ink.
- the present invention provides an ink jet recording apparatus, an ink jet recording method, and an ink jet recording method, wherein an ink jet recording image is formed using the aqueous ink. It is a cut record image.
- the present invention is configured such that the surface functional group density of the sulfonic acid groups of the dispersible colorant comprising the water-insoluble colorant and the chargeable resin pseudo fine particles is lOO ⁇ umol Zg or more.
- a dispersible colorant that can be dispersed in a good condition by itself in an aqueous medium can be obtained.
- the dispersible colorant in an ink jet ink storage stability and ejection stability are excellent.
- an excellent aqueous ink an excellent ink tank, an ink jet recording apparatus, an ink jet recording method, and a recorded image are provided.
- FIGS. 1A and 1B are schematic diagrams showing a basic structure of a dispersible colorant to which pseudo-fine particles of a chargeable resin having a sulfonic acid group are fixed according to the present invention.
- 2A, 2B, 2C, and 2D are schematic diagrams of typical steps in the production method of the present invention.
- FIG. 3 is a schematic view showing a process of purifying charged resin pseudo fine particles having a sulfonic acid group and fixing the same to a coloring material in the production method of the present invention.
- FIG. 4 is a schematic diagram in which the charged resin pseudo fine particles having a sulfonic acid group of the present invention are enlarged from the interface side where they are fixed to a coloring material.
- FIG. 5 is a schematic diagram in which the interface between the chargeable resin pseudo fine particles having a sulfonic acid group of the present invention and the coloring material is enlarged.
- FIGS. 6A and 6B are schematic diagrams of a pigment peeling phenomenon when a hydrophilic group is directly modified on an organic pigment, as typified by JP-A-10-195360. Explanation of symbols
- the term “dispersible coloring material” used in the present invention means that it can be dispersed in water or an aqueous ink medium without adding a surfactant or a polymer dispersant, that is, self-dispersing. It is a coloring material having properties.
- a first feature of the present invention is a dispersible coloring material having a coloring material and chargeable resin pseudo fine particles having a sulfonic acid group smaller than the color material (hereinafter simply referred to as chargeable resin pseudo fine particles).
- the surface functional group density of the sulfonic acid group of the dispersible colorant is 100 ⁇ mo 1 / g or more.
- a more preferred embodiment is one in which a plurality of chargeable resin pseudo fine particles are scattered with respect to the coloring material and are fixed to the coloring material.
- FIGS. 1A and 1B are schematic diagrams of the dispersible color material in which the chargeable resin pseudo fine particles 2 are adhered to the color material 1 described above.
- a portion 2 ′ in FIG. 1B is a portion schematically showing a state in which a part of the charged resin pseudo fine particles 2 fixed to the surface of the coloring material 1 is fused.
- the coloring material fixes the chargeable resin pseudo fine particles
- the charge of the chargeable resin pseudo fine particles is applied to the surface of the color material, so that a dispersible color material dispersible in water or an aqueous ink medium can be obtained.
- the chargeable resin pseudo fine particles used in the present invention have a sulfonate group, the dispersibility of the dispersible colorant can be further improved.
- the dispersible colorant according to the present invention has excellent adhesiveness to a recording medium due to the presence of the resin component of the fine particles fixed on the surface. Dispersible colorant according to the present invention It is preferable that the chargeable resin pseudo fine particles are fixed to the color material instead of the simple physical adsorption of the resin component to the color material.
- the chargeable resin pseudo fine particles are removed from the color material surface. Since the ink is not separated, when the dispersible colorant according to the present invention is used for the ink, the ink has excellent long-term storage stability.
- the term “chargeable resin pseudo fine particles” in the present invention refers to a resin aggregate in which a resin component is strongly aggregated, and preferably forms a lot of physical crosslinks therein. Are stable in the form of fine particles or microaggregates close to them. Details of the chargeable resin pseudo fine particles will be described later.
- the state of fixation between the coloring material and the chargeable resin pseudo fine particles in the present invention is due to the strong level and interaction between the color material surface and the chargeable resin pseudo fine particles, and is considered to be as follows.
- Can be FIG. 4 shows a schematic diagram in which the interface between the chargeable resin pseudo fine particles and the coloring material is enlarged.
- the charged resin pseudo fine particles 2 are composed of various monomer units (shown by 9-1 and 9_2 in the figure). Polymers are entangled. At this time, the polymer locally has various structures, and its surface energy state has distribution.
- the dispersible colorant according to the present invention is advantageous in that the chargeable resin pseudo fine particles are fixed to the colorant, and the specific surface area of the dispersible colorant is increased depending on the form. This is because the charge of the surface of the pseudo fine particles can be distributed. Since the dispersible colorant has a high specific surface area as described above, the charge of the chargeable resin pseudo fine particles can be converted to the surface charge of the dispersible colorant with extremely high efficiency. Further, since the chargeable resin pseudo fine particles have a sulfonic acid group having a high ionic dissociation degree, the surface charge according to the above aspect is further enhanced.
- the above-described embodiment of the dispersible colorant according to the present invention is a mode in which more surface charges are distributed more efficiently and higher on the surface of the dispersible colorant.
- Higher dispersion stability can be imparted as compared to a form in which a coloring material such as No. 920 is coated with a resin.
- the coloring material used in the present invention is a dispersing coloring material that is an organic pigment, as described above, the plurality of interaction points of the charged resin pseudo fine particles are randomly distributed in a state of being fixed to the coloring material. Therefore, the chargeable resin pseudo fine particles are fixed over several pigment molecules in the pigment crystal (see FIG. 5). Therefore, the “pigment exfoliation” due to the localization of the pigment molecules shown in FIGS. 6A and 6B does not occur in the present invention.
- the size of the chargeable resin pseudo fine particles is controlled to a range smaller than the pigment particles and larger than the pigment molecules. As a result, a dispersible colorant using an organic pigment with high dispersibility can be obtained without breaking the crystal structure of the pigment. Can.
- the color material is a dispersible color material in which the chargeable resin pseudo fine particles are “fixed” by the following method involving three stages of separation.
- the color material to be confirmed is separated from the other water-soluble components (including the water-soluble resin component) contained in the ink or the aqueous dispersion.
- the coloring material and the water-insoluble lunar component contained in the precipitate in the first separation are separated.
- the weakly adsorbed resin component is separated from the dispersible coloring material to which the charged resin pseudo fine particles are fixed, and the resin component contained in the supernatant of the third separation is separated.
- the fixation between the coloring material and the charged resin pseudo fine particles is confirmed by quantifying the amount of the dye and comparing the sediment of the second separation with the sediment of the third separation.
- the sediment in the second separation and the sediment in the third separation were each dried to a solid content of about 0.5 g and dried under reduced pressure at 30 ° C for 18 hours. Observe at 50,000 times with a scanning electron microscope. It was confirmed that the observed dispersible colorant had a plurality of fine particle-like substances or microaggregates equivalent thereto adhered to its surface, and that sediments from the second separation and the third separation were observed. If the coloring material has a similar form, it is determined that the coloring material has resin pseudo fine particles fixed thereto.
- the supernatant of the upper layer in the third separation was gently halved from above to about half in volume, and the solid content mass was calculated from the change in mass before and after drying at 60 ° C for 8 hours, Less than 1% change If so, there is no detachment of the resin pseudo fine particles from the dispersible color material, and it can be determined that the dispersible color material has fixed the resin pseudo fine particles.
- the above-mentioned separation conditions are preferable examples, and any other separation method or separation condition may be used as long as it achieves the first, second, and third separation purposes described above.
- the present invention can be applied as a method for determining a dispersible colorant according to the present invention. That is, in the first separation, the purpose is to separate the coloring material contained in the ink and the aqueous dispersion and the resin component adsorbed thereon from the water-soluble component, and in the second separation, The purpose is to separate the coloring material and the resin component adhered to the coloring material from other resin components adsorbed on the coloring material. Further, the third separation is intended to confirm that the resin component adhered to the coloring material does not desorb.
- any other known or newly developed separation method may be used as long as it achieves the purpose of each of the first, second, and third separations. Also, it can be applied at least.
- a second feature of the dispersible color material according to the present invention is that the dispersible color material having the color material 1 and the charged resin pseudo fine particles 2 can be dispersed alone in an aqueous medium.
- the dispersible colorant according to the present invention is a self-dispersing colorant that can be stably dispersed in water or an aqueous ink without the aid of other surfactants or polymer dispersants. Color material. This definition and determination method will be described later in detail. Therefore, the dispersible colorant according to the present invention is added with a polymer dispersant or other resin component or a surfactant component which may be desorbed for a long term for the purpose of stabilizing the colorant dispersion. No need to do.
- the self-dispersibility of the dispersible colorant according to the present invention can be confirmed, for example, by the following method.
- the ink or water dispersion in which the coloring material is dispersed is purified water Dilute 1-fold and concentrate to the original concentration using an ultrafiltration filter with a cut-off molecular weight of 50,000. This concentrated solution is separated by a centrifugal separator under the conditions of 80,000 rotations and 90 minutes, and the sediment is taken out and redispersed in pure water. At this time, those in which the sediment can be well redispersed are judged to have self-dispersibility.
- Good re-dispersion depends on the fact that the dispersion is visually uniform, that there is no noticeable sediment during standing for one to two hours, It can be judged comprehensively from the fact that the average particle size is less than twice the particle size before the operation when measuring the dispersed particle size by the dynamic light scattering method.
- the dispersible colorant according to the present invention has a form in which the colorant has a high specific surface area by fixing the charged resin pseudo fine particles, and has a large amount of electric charges on its vast surface. Excellent storage stability is realized when used in an ink.
- the dispersible color material comprising the pseudo-fine particles of the chargeable resin having at least a sulfonic acid group, which constitutes the dispersible color material according to the present invention, has a high specific surface area and a large ion dissociation due to its form. Due to the sulfonic acid having a high degree, when used in ink, the coloring material becomes a dispersible coloring material having a high surface potential and being dispersed and stabilized.
- the dispersion stability and storage stability of the dispersible colorant are achieved.
- the dispersible colorant By using the dispersible colorant, the dispersion stability, storage stability, and ejection stability of the aqueous inkjet recording ink can be improved. Can be enhanced. Therefore, more preferable results can be obtained when the chargeable resin pseudo fine particles are many (plural) and are scattered and fixed to the colorant.
- the chargeable resin pseudo fine particles are many (plural) and are scattered and fixed to the colorant.
- there is a certain distance between the fixed chargeable resin pseudo fine particles which is preferably uniformly distributed with respect to the coloring material, and more preferably a state in which the surface of the coloring material particles is partially exposed. It is desirable that
- Such a state can be confirmed by observing the dispersible colorant according to the present invention with a transmission electron microscope or a scanning electron microscope. That is, a plurality of charged resin pseudo fine particles adhered to the surface of the coloring material adhered at a certain distance. If the surface of the coloring material is exposed or scattered between the charged resin pseudo-fine particles, or the fixed coloring resin pseudo fine particles, the dispersing coloring material is preferably used in the present invention. it can. In addition, the charged resin pseudo fine particles sometimes partially come close to each other, and in some cases, the fused resin pseudo particles may be observed. If there is a distance and there is a part where the color material surface is exposed, and if these states are distributed, the chargeable resin pseudo fine particles are scattered and adhered to the color material. It is obvious to those skilled in the art.
- the aqueous ink containing the dispersible colorant according to the present invention exhibits excellent quick-drying properties on a recording medium.
- the reason for this is not clear, but it is thought to be based on the following mechanism.
- the dispersible color material is dispersed in the ink in a form in which the chargeable resin pseudo fine particles are fixed on the color material surface.
- the ink solvent becomes pores on the recording medium due to the capillary phenomenon (in the case of plain paper, it is a gap between cellulose fibers, and it may be coated paper or glossy paper).
- the coloring material used in the present invention has fine particles and many gaps because the charged resin pseudo fine particles are scattered in the portion where the coloring materials are in contact with each other, and the coloring material Capillary phenomena act on the ink solvent existing in the tub. Therefore, the ink solvent between the color materials is quickly absorbed into the recording medium.
- the dispersible coloring materials according to the present invention those in which charged resin pseudo fine particles are scattered on the surface give a water-based ink exhibiting a more preferable quick-drying property. It is expected that this has been achieved.
- the dispersible colorant according to the present invention is characterized in that the surface functional group density of the sulfonic acid group of the dispersible colorant is 100 ⁇ 1 Zg or more.
- the surface functional group density of sulfonic acid groups is less than 1 ⁇ m ⁇ 1 / g, sufficient dispersion stability and ejection properties cannot be obtained when used in ink. Is not preferred.
- a more preferred range of surface functional group density of the sulfonic acid group 1 0 0 ⁇ 5 0 0 ⁇ ⁇ ⁇ 1 / g.
- the surface functional group density of the sulfonic acid group exceeds 500 ⁇ l Zg, the dispersion stability of the dispersible colorant is too high, so that the color of the recording medium having high permeability such as plain paper is not improved.
- the concentration may decrease, which is not preferable.
- the surface of the water-insoluble colorant 1 is charged with the chargeable resin pseudo fine particles. 2 is present in the ink in a fixed state. Therefore, the coloring material adheres to the recording paper and the adjacent coloring material on the recording paper via the charged resin pseudo fine particles fixed on the surface. Therefore, a printed matter obtained by using the aqueous ink jet recording ink according to the present invention can realize excellent scratch resistance and marker resistance.
- the dispersible colorant according to the present invention and the colorant which is an essential component of the ink jet recording ink using the same will be described.
- the water-insoluble colorant used in the present invention is a water-insoluble colorant such as a hydrophobic dye, an inorganic pigment, an organic pigment, a metal colloid, or a colored resin particle, and can be stably dispersed in water together with a dispersant. Anything can be used.
- the dispersed particle size is in the range of 0.1 to 0.5 ⁇ (10 to 500 nm), particularly preferably 0.3 to 0.3 m (30 to 300 nm). Use a color material that falls within the range.
- the possibility of clogging the ejection port of the ink jet recording apparatus increases, and the ink jet recording apparatus is not suitable for printing a finer image.
- the colorant is significantly smaller than this range, the advantage of using the water-insoluble colorant, such as insufficient weatherability of the image, may be obtained.
- Examples of the inorganic pigments that can be effectively used in the present invention include, for example, carbon black, titanium oxide, zinc oxide, zinc oxide, tripon, cadmium red, red iron oxide, molybdenum red, chromium vermillion, molybdate orange, and graphite.
- Chrome Yellow, Cadmium Yellow, Yellow Iron Oxide, Titanium Yellow Examples include chromium oxide, pyridian, konokoku noreto green, titanium cobalt green, kuba noretochrome green, ultramarine, ultramarine blue, navy blue, cobalt blue, senorelian bull, manganese violet, cobalt violet, and my strength.
- organic pigments examples include, for example, azo-based, azomethine-based, polyazo-based, phthalocyanine-based, quinatalidone-based, anthraquinone-based, indigo-based, thioindigo-based, quinophthalone-based, and benzimidazolone-based. And various pigments such as isoindolin and isoindolinone.
- organic insoluble coloring materials that can be used in the present invention include, for example, azo-based, anthraquinone-based, indigo-based, phthalocyanine-based, carbonyl-based, quinonymine-based, methine-based, quinoline-based, and nitro-based hydrophobic materials. Dyes. Among these, disperse dyes are particularly preferred.
- the chargeable resin pseudo fine particles having a sulfonic acid group which is a feature of the present invention
- resin fine particles which are insoluble in water and are composed of any commonly used resin component can be used.
- the dispersed particle size in water can be measured by, for example, a light scattering method. It is desirable that the center value be in the range of 10 to 200 nm. Further, from the viewpoint of long-term storage stability of the aqueous inkjet recording ink, it is more preferable that the polydispersity index of the dispersed particle diameter be suppressed to less than 0.2.
- the central value of the dispersed particle size is larger than 20 O nm or when the polydispersity index is larger than 0.2, the original purpose of finely dispersing and stabilizing the water-insoluble colorant is not sufficiently achieved. There is. If the central value of the dispersed particle diameter is smaller than 1 O nm, the morphology of the resin pseudo fine particles cannot be sufficiently maintained, and the resin is easily dissolved in water, so that the advantages of the present invention cannot be obtained. There are cases.
- the resin component constituting the chargeable resin pseudo fine particles is not particularly limited as long as it is a resin containing a sulfonic acid group, and may be any commonly used natural or synthetic polymer or newly developed for the present invention. Any resin component such as a polymer can be used without limitation.
- a polymer or copolymer of a monomer component having a radical polymerizable unsaturated bond such as an acrylic resin or a styrene acrylic resin. Coalescing is preferred.
- hydrophilic radical polymerizable unsaturated monomer having a sulfonic acid group examples include styrene sulfonic acid, sulfonic acid-2-propylacrylamide, acrylic acid-2 —Ethyl sulphonate, ethyl methacrylate-2-ethyl sulphonate, butyl acrylamide sulphonic acid and salts thereof.
- monomer having a sulfonic acid group as a hydrophilic monomer, for example, acrylic acid, methacrylic acid, crotonic acid, ethacrylic acid, propylacrylic acid, isopropylacrylic acid, itaconic acid, fumaric acid, etc.
- a monomer having a carboxyl group and a salt thereof, a monomer having a phosphonic acid group such as methacrylic acid 1-2-phosphonic acid ethyl ester, acrylic acid 12-phosphonic acid ethyl ester and the like may be used in combination.
- Monomers classified as hydrophobic monomers include, for example, methyl acrylate, ethyl acrylate, isopropyl acrylate, mono-n-propionyl acrylate, n-butyl acrylate, t-butyl acrylate, Benzyl acrylate, methyl methacrylate, methyl methacrylate, isopropyl methacrylate, mono-n-propyl methacrylate, mono-n-butyl methacrylate, iso-butynol methacrylate, mono-t-butyl methacrylate, tri-decyl methacrylate, benyl methacrylate (Meth) acrylic esters such as Jill; styrene, ⁇ -methylstyrene, ⁇ -methinolestyrene, m-methinolestyrene, p-methinolestyrene, p-ter styrene monomers such as t-buty
- the charged resin pseudo fine particles having a sulfonic acid group are, as described above, a monomer component containing a hydrophilic monomer having at least one type of sulfonic acid and at least one type of hydrophobic monomer. It is preferable to use a composition comprising the above copolymer from the viewpoint of obtaining an aqueous ink jet recording ink having dispersion stability and suitable printing characteristics. That is, when preparing the chargeable resin fine particles, for example, the charge that adheres to the surface of the coloring material depends on many control factors such as the type and concentration of the polymerization initiator used, the type of the constituting monomer, and the copolymerization ratio.
- the hydrophobic resin pseudo fine particles It is possible to appropriately control various properties of the hydrophobic resin pseudo fine particles.
- at this time by using at least one kind of hydrophobic monomer, good fixation to the coloring material and heat stability can be achieved.
- a hydrophilic monomer having at least one sulfonic acid group for the qualitative property, good morphological control and dispersion stability can be respectively provided. Therefore, by using the above-mentioned monomers at the same time, it is possible to obtain resin fine particles that always adhere to the coloring material satisfactorily and have good dispersion stability.
- the dispersible color material of the present invention and the chargeable resin pseudo fine particles fixed to Z or the color material by appropriately selecting the monomer type and the copolymerization ratio constituting the resin fine particles.
- further functionality can be provided.
- the present invention has led to the invention of a simple method for producing a dispersible coloring material in which a chargeable resin pseudo fine particle is fixed and dispersed alone, and a water-based ink jet recording ink containing the same.
- the method for producing the dispersible colorant of the present invention and the aqueous ink jet recording ink containing the same which is preferably carried out in the present invention, particularly, in a state where the charged resin pseudo fine particles having a sulfonic acid group are fixed.
- a preferred method for producing a dispersible colorant which is dispersed alone is described below.
- a water-soluble dispersion of a coloring material is obtained by dispersing an insoluble coloring material in the form of a water-soluble pigment that functions as a dispersing agent. Then, in this aqueous dispersion, an aqueous radical polymerization initiator is used.
- This is a production method in which chargeable resin pseudo fine particles are fixed to a coloring material by a step of subjecting a radically polymerizable monomer to aqueous precipitation polymerization.
- the dispersible coloring material obtained through this step is composed of a coloring material in which charged resin pseudo fine particles having a sulfonic acid group synthesized in the aqueous precipitation polymerization step are strongly fixed in a uniform and dotted state. Excellent in dispersion stability alone.
- the characteristics of the chargeable resin pseudo fine particles having a sulfonic acid group can be easily controlled to the preferable forms as described above, and this is also a feature of the present invention. Good fixation with the colorant is achieved.
- preferred embodiments of the above manufacturing method will be described in detail.
- the colorant preferably used in the present invention as described above is made into an aqueous dispersion with a dispersant.
- a dispersant for dispersing the colorant in the aqueous solution any of a general polymer dispersant and a water-soluble polymer, such as ionic and nonionic, can be used.
- the coloring material preferably has a dispersed particle size in the range of 0.01 to 0.5 ⁇ (10 to 500 nm), particularly preferably. Better Or 0.3 to 0.3 ⁇ (30 to 300 nm).
- the dispersion particle size in this process largely reflects the dispersion particle size of the coloring material to which the obtained charged resin pseudo fine particles having a sulfonic acid group are adhered. The above range is preferable from the viewpoint of the weather resistance of the image.
- the dispersion particle size distribution of the water-insoluble coloring material used in the present invention is preferably as monodispersed as possible.
- a color material having a polydispersity index of 0.25 or less should be used. It is desirable to use.
- the particle size of the colorant in the dispersed state differs depending on the measurement method. In particular, when the organic pigment is a spherical particle, it is extremely small, but in the present invention, ELS-8 manufactured by Otsuka Electronics Co., Ltd. is used. The particle size and the polydispersity index determined by measuring the dynamic light scattering method at 0000 in principle and performing cumulant analysis are used.
- any of the conventionally known methods among the methods in which the colorant can be stably dispersed in water under the above-mentioned conditions may be used as long as the method uses the above-described dispersant.
- the method is not limited. Alternatively, it may be a dispersion method newly developed for the present invention.
- the amount of the polymer dispersant to be used is generally, for example, when the water-insoluble colorant is a pigment, 10 mass per pigment. /. ⁇ 130 mass. / 0 is suitable.
- Dispersing methods of the coloring material used in the present invention include dispersing machines such as paint shaker, sand mill, agitator mill, and three-roll mill, and high-pressure homogenizers such as microfluidizers 1, nanomizers, and almizers; There is no limitation on any method as long as it is a dispersion method generally used for each color material, such as an acoustic disperser.
- any general water-soluble radical polymerization initiator can be used.
- the water-soluble radical polymerization initiator include persulfate.
- the redox initiator may be a combination of a water-soluble radical polymerization initiator and a reducing agent. Specifically, it is designed and used so as to be an optimal combination in consideration of the characteristics of the coloring materials, dispersants, and monomers listed above.
- a polymerization initiator that gives a polymerization initiator residue having the same sign as the surface characteristics of the water-insoluble coloring material to which the charged resin pseudo fine particles to be obtained is fixed is selected.
- a desired surface charge can be more efficiently obtained by selecting one in which the initiator residue is neutral or anionic. be able to.
- the radical polymerizable monomer used in the production method according to the present invention is a component constituting the charged resin pseudo fine particles having a sulfonic acid group through the aqueous precipitation polymerization. What is necessary is just to select suitably according to the characteristic of the coloring material which fixes the chargeable resin pseudo fine particles.
- a conventionally known radically polymerizable monomer or Any of the radically polymerizable monomers newly developed can be used.
- FIG. 2A a dispersion aqueous solution in which the coloring material 1 is dispersed by the dispersant 3 in the aqueous solution is prepared.
- the coloring material is dispersed and stabilized by the adsorption of the dispersant, and the adsorption is in thermal equilibrium.
- the temperature of the dispersion prepared in FIG. 2A is increased while stirring, and the monomer component 4 is added thereto, for example, together with the aqueous radical polymerization initiator 5 (see FIG. 2B).
- the added aqueous radical polymerization initiator is dissociated by increasing the temperature to generate radicals, and among the monomer components added to the aqueous dispersion, a small amount of the hydrophobic monomer dissolved in the aqueous phase is dissolved. It contributes to the reaction with the water-soluble monomer in the aqueous phase.
- FIG. 3 is a schematic diagram illustrating a process from polymerization of the monomer 4 to generation of a dispersible colorant.
- the oligomer 7 formed by the polymerization reaction of the monomer component becomes insoluble in water and precipitates from the aqueous phase (8 in the figure). Since they do not have excellent dispersion stability, they form the charged resin pseudo fine particles 2 having a sulfonic acid group.
- the charged resin pseudo fine particles 2 further cause hetero-aggregation with the hydrophobic surface of the coloring material 1 in the aqueous dispersion as a nucleus. Adsorbs strongly by action.
- the polymerization reaction continues to progress inside the charged resin pseudo fine particles 2, and changes to a more energy stable form while increasing the adsorption points with the coloring material 1.
- the inside of the charged resin pseudo fine particles is highly formed with physical cross-linking, the form that adsorbs the coloring material 1 most stably is fixed and fixed.
- coloring material 1 is The fine particles 2 are stabilized by being fixed, and the dispersant 3 in the equilibrium state is detached from the surface of the coloring material (see FIGS. 2D and 3).
- FIG. 4 shows a schematic view of the chargeable resin pseudo fine particles 2 on the bonding interface side with the coloring material 1.
- the charged resin pseudo fine particles 2, which are aggregates of the resin components, have hydrophilic monomer units 9-1, hydrophobic monomer units 9-2, etc., which are arbitrarily distributed. There are countless adsorption points 10 that have a distribution and coincide with the surface energy of the coloring material 1.
- FIG. 5 shows an enlarged schematic view of the bonding interface between the chargeable resin pseudo fine particles and the coloring material.
- the interface 11 of the force chargeable resin pseudo fine particles adsorbs the adsorption point 10 shown in FIG.
- the color material 1 is stably fixed in a form corresponding to the surface shape.
- the adsorption to the coloring material 1 is achieved by being immobilized in a stabilized form. .
- the dispersible color material 6 having the above-described configuration is easily formed (see FIG. 2D).
- the charged resin pseudo fine particles have a sufficient surface charge to achieve self-dispersibility
- the space between the charged resin pseudo fine particles is reduced. Due to the mutual action of electrostatic repulsion, the chargeable resin pseudo fine particles 2 are scattered and adhered to the color material 1, and have the above-described preferred form.
- the polymerization reaction conditions vary depending on the properties of the polymerization initiator, dispersant, and monomer used.
- the reaction temperature is 100 ° C or lower, preferably 40 ° C or higher and 80 ° C or lower. is there.
- the reaction time is 1 hour or more, preferably 6 hours or more and 30 hours or less.
- the stirring speed during the reaction is preferably from 50 rpm to 500 rpm, and more preferably from 150 rpm to 400 rpm.
- Said monomer component is aqueous It is desirable that the composition be dropped into a water dispersion of a water-insoluble coloring material containing a radical polymerization initiator.
- a water-insoluble coloring material containing a radical polymerization initiator.
- the mixture of the monomers is added to the polymerization system in excess of the amount of the monomers consumed in the polymerization reaction within a certain period of time, only the specific monomer species precedes and the remaining monomers precede the polymerization. There is a tendency that the polymerized monomer is consumed and then polymerized. In this case, the properties of the generated sulfonic acid group-containing charged resin pseudo fine particles are greatly uneven.
- sulfonic acid group-containing charged resin pseudo fine particles thus formed, particularly those having a large content of a hydrophilic monomer component may not be able to adhere to the surface of the water-insoluble coloring material. Furthermore, a resin component having a high content of a hydrophilic monomer component cannot be precipitated due to its high hydrophilicity and cannot form pseudo-charged resin particles having a sulfonic acid group. It may remain.
- the copolymerization ratio of the hydrophobic monomer and the hydrophilic monomer is always kept constant, which is desirable.
- charged resin pseudo fine particles composed of the copolymerization ratio of the above can be uniformly obtained.
- an ionic monomer containing a sulfonic acid group or the like when added to the polymerization system, it is partially unstable depending on the characteristics of the polymer dispersant in which the colorant is dispersed, causing aggregation. In some cases. In order to prevent this, it is also a preferred embodiment to neutralize the anionic monomer in advance and add it in the form of a sodium salt or potassium salt.
- a water-based ink according to the present invention is characterized by including the above-described dispersed color material according to the present invention.
- the water-insoluble colorant is a pigment
- the pigment content is generally 0.1 to 20% by mass, preferably 0.3 to 15% by mass, based on the ink.
- the aqueous medium contains water and a water-soluble organic solvent as needed. Further, it may contain a penetrating agent, a preservative, an antifungal agent and the like for assisting the permeability into the recording medium.
- the ink jet recorded image of the present invention is formed on a recording medium by an ink jet recording apparatus as described later, using the aqueous ink according to the present invention.
- the recording medium in the present invention can be used without any limitation even if the medium is capable of ink jet recording.
- the dispersible colorant and the water-based ink of the present invention are used for an ink jet discharge type head, and can be used as an ink tank in which the ink is stored or as a filling ink. It is valid.
- the present invention provides an excellent effect in a recording head and a recording apparatus of a bubble jet method among the ink jet recording methods.
- a full-line type recording head having a length corresponding to the width of the maximum recording medium that can be recorded by the recording device
- a combination of a plurality of recording heads as disclosed in the above specification is used.
- the present invention can exhibit the above-mentioned effects more effectively, although it may be either a configuration satisfying the length or a configuration as a single recording head formed integrally.
- a replaceable chip-type recording head which is attached to the main body of the apparatus, enables electrical connection with the main body of the apparatus and supply of ink from the main body of the apparatus.
- the present invention is also effective when a cartridge type recording head provided integrally with the recording head itself is used.
- recovery means for the printhead, preliminary auxiliary means, and the like provided as a configuration of the printing apparatus to which the present invention is applied, since the effects of the present invention can be further stabilized.
- the recording head may be formed by a caving means, a cleaning means, a pressure or suction means, an electrothermal converter or another heating element or a combination thereof.
- the preliminary heating mode is a preliminary ejection mode in which ejection is performed separately from recording.
- Recording ink 1 according to Example 1 was produced in the following manner. First, Sosei pigment consisting of 10 parts of a cyan pigment (CI. Pigment Blue 15: 3 from Clariant), 6 parts of glycerin, 10 parts of a styrene-acrylic acid resin dispersant, and 74 parts of water. was dispersed in a sand mill manufactured by Kaneda Rika Kogyo Co., Ltd. at 1,500 rpm for 12 hours to obtain a pigment dispersion 1. In the sand mill, zircon beads having a diameter of 0.6 mm were used, and the filling rate in the pot was set to 70%.
- Sosei pigment consisting of 10 parts of a cyan pigment (CI. Pigment Blue 15: 3 from Clariant), 6 parts of glycerin, 10 parts of a styrene-acrylic acid resin dispersant, and 74 parts of water. was dispersed in a sand mill manufactured by Kaneda Rika Ko
- an aqueous solution was prepared by previously adding water and a hydrating power equivalent to the above-mentioned acid value and stirring at 80 ° C.
- the resulting Pigment Dispersion Liquid 1 was stably dispersed with an average dispersed particle size of 120 nm, and had a polydispersity index of 0.16.
- each additive solution was a hydrophobic monomer consisting of 28.5 parts of methyl methacrylate, a mixed solution containing a hydrophilic monomer consisting of 4.3 parts of sodium p-styrenesulfonate and 30 parts of water, and potassium persulfate 0 parts. It is a mixed solution containing a polymerization initiator consisting of 0.5 part and 30 parts of water.
- the obtained dispersion was diluted 10-fold with water, and centrifuged at 5,000 rpm for 10 minutes to remove aggregated components. Thereafter, the mixture was further centrifuged at 12,500 rpm for 2 hours to obtain a colorant dispersion 1 as a sediment.
- the obtained colorant dispersion 1 was dispersed in water, centrifuged at 1,200 rpm for 60 minutes, and the sediment was re-dispersed in water. Observation at 50,000 times with JSM-6700 (manufactured by JEOL High-Tech Co., Ltd.) revealed that the colorant dispersion 1 had resin fine particles fixed to the surface of the pigment. It should be noted that the form of the subsequent color materials described in the present embodiment is confirmed by the same method.
- the following components were mixed so that the obtained coloring material dispersion 1 had a concentration of 4% in the ink, and further filtered under pressure through a membrane filter having a pore size of 2.5 microns.
- the aqueous ink A of the example was used.
- Example 3 A colorant dispersion was obtained in the same manner as in Example 1 except that 4.3 parts of sodium p-styrenesulfonate was changed to 2.0 parts of sodium styrenesulfonate.
- An aqueous ink B was obtained in the same manner as in Example 1 using the material dispersion. (Example 3)
- the monomer component was changed to methyl methacrylate 40.5 parts, p-styrene sulfonic acid
- a colorant dispersion was obtained in the same manner as in Example 1 except that the mixture was changed to a mixed solution consisting of 12.9 parts of sodium and 90 parts of water.
- a water-based ink C was obtained in the same manner as in Example 1.
- a colorant dispersion was obtained in the same manner as in Example 1 except that 4.3 parts of sodium p-styrenesulfonate was changed to 0.4 part of sodium p-styrenesulfonate.
- a water-based ink F was obtained in the same manner as in Example 1 using the material dispersion.
- Each colorant dispersion was dispersed in water and dried. Observed with a scanning electron microscope JSM-6700 (manufactured by JEOL High-Tech Co., Ltd.) at 50,000 times, the resin fine particles smaller than the colorant were colored. Those that could be confirmed to be fixed to the material were evaluated as ⁇ , and those that could not be evaluated as X. In addition, at the time of observation, those in which resin fine particles were confirmed to be scattered were evaluated as ⁇ , and those in which localized or non-uniform fixation was observed were evaluated as X, and the scatterability was evaluated. .
- the surface functional group density of sulfonic acid groups in the colorant dispersion was determined as follows. First, each colorant dispersion is dispersed in water, and hydrochloric acid is added to the obtained aqueous dispersion until the pH becomes 2 or less, and the dispersible colorant is acid-precipitated. Next, the precipitate is sedimented in a centrifugal separator at 200,000 rpm for 1 hour, and the sediment is collected and dried to obtain sediment 1. The resin component was extracted from the precipitate 1 with a Soxhlet extractor using THF (tetrahydrofuran) as an extraction solvent, and the solvent was distilled off to obtain a resin component.
- THF tetrahydrofuran
- the resin component was dissolved in DMSO (dimethyl sulfoxide), and the composition was identified by pyrolysis gas chromatography. Further, NMR measurement was performed, the composition ratio was calculated from the integrated value of the signal, and the amount of sulfonic acid per 1 g of resin (A mol g) was calculated from the composition ratio. Next, the ratio B of the resin to the precipitate 1 was calculated using a differential thermogravimetric analyzer (METLLER TGA / SDTA851). From the amount of sulfonic acid (A) obtained by the above method and the ratio of resin to precipitate 1 (B), the surface functional group density of sulfonic acid groups was determined from the following formula.
- DMSO dimethyl sulfoxide
- aqueous inks A to F obtained by the above-described method printing was performed on a recording medium by an ink jet recording apparatus, and the obtained printed matter was evaluated.
- the ink jet recording apparatus used was a BJS700 (manufactured by Canon Inc.), and each of the aqueous inks A to F was injected into a cyan ink tank to form an image.
- the scratch resistance, image density, and ejection stability of the printed matter printed under the above conditions were evaluated as follows, and the results are shown in Table 2. As shown in Table 2, the water-based inks of all Examples had good ejection stability. It was confirmed that the formed image exhibited excellent scratch resistance.
- the ejection stability was determined visually by printing 300 sheets of a specific text continuously and comparing the initial printed matter with the last printed matter.
- the abrasion resistance of the printed matter was evaluated by rubbing the printed part five times with a silbon paper weighing 40 g / cm 2, visually observing the disorder of the printed part, and evaluating according to the following criteria.
- the evaluation of the image density of the printed matter was performed by printing the color text on Canon PPC paper using each ink, measuring the image density one day later, and evaluating it according to the following criteria.
- A: OD of printed matter is 0.85 or more.
- each dispersible colorant in each example was excellent in dispersion stability.
- the aqueous ink ejection stability and the abrasion resistance in each of the examples were excellent.
- the aqueous inks of Examples 1, 2, 4, and 5 were excellent in image density in addition to ejection stability and abrasion resistance.
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
Claims
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US11/311,634 US20060142416A1 (en) | 2004-06-22 | 2005-12-20 | Dispersible colorant and manufacturing method thereof, aqueous ink using the same, ink tank, ink-jet recording apparatus, ink-jet recording method, and ink-jet recording image |
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US11/311,634 Continuation US20060142416A1 (en) | 2004-06-22 | 2005-12-20 | Dispersible colorant and manufacturing method thereof, aqueous ink using the same, ink tank, ink-jet recording apparatus, ink-jet recording method, and ink-jet recording image |
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JP3958325B2 (ja) * | 2004-03-16 | 2007-08-15 | キヤノン株式会社 | プリント媒体用塗布液、インクジェット用インク、画像形成方法、プリント媒体用塗布液とインクジェット用インクとのセット、及びインクジェット記録装置 |
WO2005123846A1 (ja) * | 2004-06-22 | 2005-12-29 | Canon Kabushiki Kaisha | 分散性色材とその製造方法、該分散性色材を用いた水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 |
WO2006001508A1 (ja) * | 2004-06-24 | 2006-01-05 | Canon Kabushiki Kaisha | 水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 |
US20060009544A1 (en) * | 2004-06-25 | 2006-01-12 | Canon Kabushiki Kaisha | Aqueous ink and ink set for ink jet recording |
WO2006001513A1 (ja) * | 2004-06-25 | 2006-01-05 | Canon Kabushiki Kaisha | 水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 |
WO2006001546A1 (ja) * | 2004-06-28 | 2006-01-05 | Canon Kabushiki Kaisha | 分散性色材の製造方法及びインクジェット記録用インク |
JP2006225637A (ja) | 2005-01-18 | 2006-08-31 | Canon Inc | インク、インクセット、インクジェット記録方法、インクカートリッジ及びインクジェット記録装置 |
WO2007111384A1 (ja) | 2006-03-24 | 2007-10-04 | Canon Kabushiki Kaisha | 水性インク、インクジェット記録方法、インクカートリッジ、記録ユニット、及びインクジェット記録装置 |
US8052271B2 (en) * | 2006-12-08 | 2011-11-08 | Canon Kabushiki Kaisha | Coating liquid, ink jet recording method and ink jet recording apparatus |
US7868060B2 (en) * | 2007-02-05 | 2011-01-11 | Canon Kabushiki Kaisha | Aqueous ink, ink jet recording method, ink cartridge, recording unit, ink jet recording apparatus, and image |
DE102009008740A1 (de) | 2009-02-12 | 2010-08-19 | Clariant International Limited | Leicht dispergierbare feste Pigmentzubereitungen |
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JP2002105379A (ja) * | 2000-09-29 | 2002-04-10 | Hitachi Maxell Ltd | 分散液組成物及びその製造方法 |
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CA1127227A (en) * | 1977-10-03 | 1982-07-06 | Ichiro Endo | Liquid jet recording process and apparatus therefor |
US4330787A (en) * | 1978-10-31 | 1982-05-18 | Canon Kabushiki Kaisha | Liquid jet recording device |
US4345262A (en) * | 1979-02-19 | 1982-08-17 | Canon Kabushiki Kaisha | Ink jet recording method |
US4463359A (en) * | 1979-04-02 | 1984-07-31 | Canon Kabushiki Kaisha | Droplet generating method and apparatus thereof |
US4313124A (en) * | 1979-05-18 | 1982-01-26 | Canon Kabushiki Kaisha | Liquid jet recording process and liquid jet recording head |
US4558333A (en) * | 1981-07-09 | 1985-12-10 | Canon Kabushiki Kaisha | Liquid jet recording head |
US5976233A (en) * | 1996-11-13 | 1999-11-02 | Canon Kabushiki Kaisha | Water-based pigment ink, and ink-jet recording method and instruments using the same |
JP2003034770A (ja) * | 2001-05-17 | 2003-02-07 | Fuji Photo Film Co Ltd | 水系着色微粒子分散物、その製造方法、およびインクジェット記録用インク |
US7354961B2 (en) * | 2003-07-04 | 2008-04-08 | Kao Corporation | Aqueous ink for ink jet recording |
WO2006001521A1 (ja) * | 2004-06-25 | 2006-01-05 | Canon Kabushiki Kaisha | 分散性色材とその製造方法、それを用いた水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 |
WO2006001513A1 (ja) * | 2004-06-25 | 2006-01-05 | Canon Kabushiki Kaisha | 水性インク、インクタンク、インクジェット記録装置、インクジェット記録方法、及びインクジェット記録画像 |
-
2005
- 2005-06-22 WO PCT/JP2005/011890 patent/WO2005123843A1/ja active Application Filing
- 2005-12-20 US US11/311,634 patent/US20060142416A1/en not_active Abandoned
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JP2002105379A (ja) * | 2000-09-29 | 2002-04-10 | Hitachi Maxell Ltd | 分散液組成物及びその製造方法 |
JP2003055579A (ja) * | 2001-06-20 | 2003-02-26 | Rohm & Haas Co | 水性複合体粒子組成物 |
JP2005042095A (ja) * | 2003-07-04 | 2005-02-17 | Kao Corp | インクジェット記録用水系インク |
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