EP1723202A1 - Pigment preparations based on phthalocyanine pigments - Google Patents

Pigment preparations based on phthalocyanine pigments

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Publication number
EP1723202A1
EP1723202A1 EP05715434A EP05715434A EP1723202A1 EP 1723202 A1 EP1723202 A1 EP 1723202A1 EP 05715434 A EP05715434 A EP 05715434A EP 05715434 A EP05715434 A EP 05715434A EP 1723202 A1 EP1723202 A1 EP 1723202A1
Authority
EP
European Patent Office
Prior art keywords
pigment
preparation according
formula
copper phthalocyanine
pigment preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05715434A
Other languages
German (de)
French (fr)
Inventor
Joachim Weber
Manfred Opravil
Magali Venera
Hans-Tobias Macholdt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Clariant Produkte Deutschland GmbH
Original Assignee
Clariant Produkte Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Clariant Produkte Deutschland GmbH filed Critical Clariant Produkte Deutschland GmbH
Publication of EP1723202A1 publication Critical patent/EP1723202A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • C09B67/006—Preparation of organic pigments
    • C09B67/0066—Aqueous dispersions of pigments containing only dispersing agents
    • C09B67/0067—Aqueous dispersions of phthalocyanine pigments containing only dispersing agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • 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
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • 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
    • C09B67/006—Preparation of organic pigments
    • 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
    • C09B67/006—Preparation of organic pigments
    • C09B67/0069—Non aqueous dispersions of pigments containing only a solvent and a dispersing agent
    • C09B67/007—Non aqueous dispersions of phthalocyanines containing only a solvent and a dispersing agent
    • 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
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • C09D17/003—Pigment pastes, e.g. for mixing in paints containing an organic pigment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K

Definitions

  • the present invention relates to new pigment preparations with phthalocyanine pigment as the base pigment and by C.I. Pigment Violet 23 derived pigment dispersant.
  • Pigment preparations are combinations of base pigments and so-called pigment dispersants, which are pigments substituted with specific active groups.
  • the pigment dispersants are added to the pigments in order to facilitate dispersion in the application media, in particular in paints and printing inks, and to improve the rheological and coloristic properties of the pigments.
  • the viscosity of the highly pigmented lacquer and printing ink concentrates (mill base) is reduced and the flocculation of the pigment particles is reduced. For example, the color strength, transparency and gloss can be increased. This is particularly desirable for metallic paints.
  • WO 02/04563 discloses dispersions containing a mixture of a solid solution of a host and a guest pigment with one
  • EP-A-1 130 065 discloses similar mixtures of one
  • Copper phthalocyanine and a second organic pigment which may optionally contain a copper phthalocyanine derivative.
  • the invention relates to pigment preparations characterized by a content of at least one, preferably 1 or 2, copper phthalocyanine pigment from the group C.I. Pigment Blue 15, 15: 0, 15: 1, 15: 2, 15: 3, 15: 4 and 15: 6, and at least one, preferably 1, 2 or 3, pigment dispersant of the formula (I),
  • n is a number 1, 2, 3 or 4, preferably 1 or 2; and the weight ratio of copper phthalocyanine pigment to pigment dispersant of the formula (I) preferably between (99.9 to 0.1) and (75 to 25), particularly preferably between (99 to 1) and (80 to 20), in particular between (98 to 2) and (85 to 15), and very particularly preferably between (97 to 2.5) and (90 to 10).
  • the pigment dispersants of formula (I) are known compounds and can be prepared by known processes, e.g. according to EP-A-321 919.
  • the pigment preparations according to the invention can also contain other customary auxiliaries or additives, such as, for example, surfactants, non-pigmentary and pigmentary dispersants, fillers, adjusting agents, resins, waxes, defoamers, anti-dusting agents, extenders, antistatic agents, colorants for shading, for example PV23, Preservatives, drying retardants, additives for controlling the rheology, wetting agents, Antioxidants, UV absorbers and light stabilizers, preferably in an amount of 0.1 to 25% by weight, in particular 0.5 to 15% by weight, based on the total weight of the pigment preparation. It is also possible to synthesize and use the pigment dispersant as a mixture of unsubstituted, mono- and disubstituted PV23.
  • Suitable surfactants are anionic or anionic, cationic or cationic and nonionic or amphoteric substances or mixtures of these agents.
  • Anionic substances for example, fatty acid taurides, fatty acid N-methyltaurides, fatty acid isethionates, alkylphenyl, such as dodecylbenzenesulfonic acid, alkylnaphthalenesulfonates, alkylphenol polyglycol ether sulfates, fatty alcohol polyglycol ether, fatty acid amide polyglycol ether sulfates, alkyl sulfosuccinamates, Alkenylbemsteinklasteder, Fettalkoholpolygiykol-ethersulfosuccinate, alkane sulfonates, fatty acid glutamates, alkyl sulfosuccinates, fatty acid sarcosides; Fatty acids, for example palmitic, stearic and oleic acid; the salts of these anionic substances and soaps, for example alkali metal salts of fatty acids, naphthenic acids and
  • cationic substances are quaternary ammonium salts, fatty amine oxyalkylates, polyoxyalkylene amines, oxyalkylated polyamines, fatty amine polyglycol ethers, primary, secondary or tertiary amines, for example alkyl, cycloalkyl or cyclized alkylamines, in particular fatty amines, di- and polyamines derived from fatty amines or fatty alcohols and their oxalkylates
  • nonionic and amphoteric substances include fatty amine carboxyglycinates, amine oxides, fatty alcohol polyglycol ethers, fatty acid polyglycol esters, betaines, such as fatty acid amide-N-propyl-betaine, phosphoric acid esters of aliphatic and aromatic alcohols, fatty alcohols or fatty alcohol polyglycol ethers, fatty acid alkylene phenol alcohols, fatty acid alkylene phenol alcohols, fatty acid amide phenol alcohols and fatty acid alkylene phenol alcohols, fatty acid alkoxide phenoxides and fatty acid amide ethoxylate, fatty acid alkoxide phenol alcohols, fatty acid alkoxide ethoxylates, fatty acid alkoxide ethoxylates, fatty acid alkoxide ethoxylates, fatty acid alkoxide ethoxylates and fatty acid amide ethoxylate, fatty acid alkoxide
  • Nonpigmentary dispersants mean substances that are not structurally derived from organic pigments. They are added as dispersants either already during the production of pigments, but often also when the pigments are incorporated into the application media to be colored, for example in the production of lacquers or printing inks by dispersing the pigments in the corresponding binders. They can be polymeric substances, for example polyolefins, polyesters, polyethers, polyamides, polyimines, polyacrylates, polyisocyanates, block copolymers thereof, copolymers from the corresponding monomers or polymers from one class which have been modified with a few monomers from another class.
  • Non-pigmentary dispersants can furthermore also be aromatic substances chemically modified with functional groups and not derived from organic pigments.
  • Nonpigmentary dispersants are known in the art and some are available commercially (for example, Solsperse ®, Avecia; Disperbyk ®, Byk-Chemie, Efka ®, Efka).
  • Pigmentary dispersants mean pigment dispersants which are derived from an organic pigment as the base body and are prepared by chemical modification of this base body, for example saccharin-containing pigment dispersants, piperidyl-containing pigment dispersants, naphthalene or perylene-derived pigment dispersants, pigment dispersants with functional groups which have a methylene group with the pigment base are linked to polymer chemically modified pigment base bodies, pigment dispersants containing sulfonic acid, sulfonamide or sulfonic acid ester groups, pigment dispersants containing ether or thioether groups, or pigment dispersants containing carboxylic acid, carboxylic acid ester or carbonamide groups.
  • Anionic groups of the non-pigmentary and pigmentary dispersants, surfactants or resins used as auxiliaries can also be lacquered, for example by Ca, Mg, Ba, Sr, Mn or Al ions or by quaternary ammonium ions.
  • Fillers or extenders mean a large number of substances in accordance with DIN 55943 and DIN EN 971-1, for example the different types of talc, kaolin, mica, dolomite, lime, barium sulfate or titanium dioxide.
  • the addition has proven particularly useful before pulverizing the dried pigment preparation.
  • the pigment preparation according to the invention can be used as a preferably aqueous press cake or moist granules, but as a rule these are solid systems of free-flowing, powdery nature or granules.
  • the invention also relates to a process for the preparation of a pigment preparation according to the invention, characterized in that the pigment dispersant of the formula (I) and the copper phthalocyanine pigment are mixed with one another or are allowed to act on one another at any point in their production process.
  • the dry components in granular or powder form can be mixed before or after grinding; one component can be added to the other component in moist or dry form, for example by mixing the components in the form of the moist press cake.
  • the mixing can take place, for example, by acid pasting, acid swelling, by grinding in dry form, in moist form, for example by kneading, or in suspension, or by a combination of these
  • Grinding can be carried out with the addition of water, solvents, acids or grinding aids such as salt.
  • Mixing can also be done by adding the pigment dispersant to the
  • the pigment dispersant is preferably added to the phthalocyanine after the chemical formation of the phthalocyanine ring system from the corresponding phthalic acid derivatives.
  • Raw phthalocyanine pigment is comminuted, for example by acid pasting,
  • Phthalocyanines can usually be subjected to an aftertreatment, generally referred to as a finish, for example in water and / or solvents and usually at elevated temperature, for example up to 200 ° C., and, if appropriate, increased pressure.
  • a finish for example in water and / or solvents and usually at elevated temperature, for example up to 200 ° C., and, if appropriate, increased pressure.
  • the pigment dispersant can also be used in Portions are added at different times.
  • drying units When drying a moist pigment preparation, the known drying units can be used, such as drying cupboards, paddle wheel dryers, tumble dryers, contact dryers and in particular spin flash and spray dryers. By choosing a suitable drying unit, low-dust and free-flowing powders or granules can also be produced.
  • the pigment preparations are preferably prepared by grinding the components in dry form, in moist form or in suspension, in particular by salt kneading the components; furthermore, a preferred production process is the addition of the pigment dispersant to the copper phthalocyanine pigment during or after a finish.
  • a third preferred production variant is mixing in dry form before pulverization.
  • the pigment preparations according to the invention can be used to pigment high-molecular_orian_materials_natural.
  • synthetic origin for example plastics, resins, lacquers, paints, electrophotographic toners and developers, electret materials, color filters and inks, printing inks and seeds.
  • High molecular weight organic materials that can be pigmented with the pigment preparations according to the invention are, for example, cellulose compounds, such as, for example, cellulose ethers and esters, such as ethyl cellulose, nitrocellulose, cellulose acetates or cellulose butyrates, natural binders, such as, for example, fatty acids, fatty oils, resins and their conversion products, or synthetic resins , such as polycondensates, polyadducts, polymers and copolymers, such as, for example, aminoplasts, in particular urea and melamine formaldehyde resins, alkyd resins, acrylic resins, phenoplasts and phenol resins, such as novolaks or resols, urea resins, polyvinyls, such as polyvinyl alcohols, polyvinyl acetals, polyvinyl ether polyolefins, or polyvinyl ether polyolefins, or polyvinyl ether polyo
  • the present invention therefore also relates to a high molecular weight organic material containing a dye-effective amount of a pigment preparation according to the invention ...
  • the pigment preparation according to the invention is usually used in an amount of 0.01 to 30% by weight, preferably 0.1 to 15% by weight.
  • This crude can be used to produce color concentrates in liquid or solid form in concentrations of 5 to 99% by weight, alone or optionally in a mixture with other crudes or finished pigments.
  • the pigment preparations of the invention are also suitable as colorants in electrophotographic toners and developers, such as, for example, one- or two-component powder toners (also called one- or two-component developers), magnetic toners, liquid toners, polymerization toners and special toners.
  • electrophotographic toners and developers such as, for example, one- or two-component powder toners (also called one- or two-component developers), magnetic toners, liquid toners, polymerization toners and special toners.
  • Typical toner binders are polymerization, polyaddition and polycondensation resins, such as styrene, styrene-acrylate, styrene-butadiene, acrylate, polyester, phenol-epoxy resins, polysulfones, polyurethanes, individually or in combination, and polyethylene and polypropylene, which also contain other ingredients, such as charge control agents, waxes or flow aids, or can be modified with these additives afterwards.
  • resins such as styrene, styrene-acrylate, styrene-butadiene, acrylate, polyester, phenol-epoxy resins, polysulfones, polyurethanes, individually or in combination, and polyethylene and polypropylene, which also contain other ingredients, such as charge control agents, waxes or flow aids, or can be modified with these additives afterwards.
  • the pigment preparations according to the invention are suitable as colorants in powders and powder coatings, in particular in triboelectrically or electrokinetically sprayable powder coatings which are used for the surface coating of objects made of, for example, metal, wood, plastic, glass, ceramic, concrete, textile material, paper or rubber.
  • Epoxy resins, carboxyl- and hydroxyl-containing polyester resins, polyurethane and acrylic resins are typically used as powder coating resins together with conventional hardeners. Combinations of resins are also used. For example, epoxy resins are often used in combination with carboxyl- and hydroxyl-containing polyester resins.
  • Typical hardener components are, for example, acid anhydrides, imidazoles and dicyandiamide and their derivatives, blocked isocyanates, bisacylurethanes, phenolic and melamine resins, triglycidyl isocyanurates, oxazolines and dicarboxylic acids.
  • pigment preparations according to the invention are colorants in
  • Ink-jet inks on an aqueous and non-aqueous basis and in such inks that work according to the hot-melt process are suitable.
  • Ink-jet inks generally contain a total of 0.5 to 15% by weight, preferably 1.5 to 8% by weight (calculated on a dry basis) of one or more of the pigment preparations according to the invention.
  • Microemulsion inks are based on organic solvents, water and possibly an additional hydrotropic substance (interface mediator).
  • Microemulsion inks generally contain 0.5 to 15% by weight, preferably
  • Pigment preparations 5 to 99% by weight of water and 0.5 to 94.5% by weight organic solvent and / or hydrotropic compound.
  • “Solvent based" ink-jet inks preferably contain 0.5 to 15% by weight of one or more of the pigment preparations according to the invention, 85 to 99.5% by weight of organic solvent and / or hydrotropic compounds.
  • Hot-melt inks are mostly based on waxes, fatty acids, fatty alcohols or sulfonamides, which are solid at room temperature and become liquid when heated, the preferred melting range being between approx. 60 ° C and approx. 140 ° C.
  • Hot melt ink jet inks consist essentially of 20 to 90% by weight, for example
  • plasticizer 0 to 10% by weight tackifier additive, 0 to 10% by weight
  • Transparency stabilizer prevents e.g. crystallization of the waxes
  • 2 wt .-% antioxidant may be included.
  • the pigment preparations according to the invention are also used as colorants for .
  • FaLbfjIter for both additive and subtractive color generation, such as in electro-optical systems such as television screens, LCD (liquid crystal displays), charge coupled devices, plasma displays or electroluminescent displays, which in turn are active (twisted nematic) or passive ( supertwisted nematic) ferroelectric displays or light-emitting diodes, as well as suitable as colorants for electronic inks ("electronic inks" or "e-inks”) or "electronic paper”("e-paper”).
  • suitable binders acrylates, acrylic esters, polyimides, polyvinyl alcohols, epoxies, polyesters, melamines, gelatins, caseins
  • a high pigment purity is also essential for a stable paste or pigmented photoresist
  • the pigmented color filter can also be ink jet Printing processes or other suitable printing processes are applied.
  • the reddish blue shades of the pigment preparations according to the invention are very particularly suitable for the color filter color set red-green-blue (R, G, B).
  • Typical colorants for the red color point are pyrrolopyrrole, quinacridone and
  • Azo pigments such as P.R. 254, P.R. 209, P.R. 175 and P.O. 38, individually or mixed.
  • P.R. 254, P.R. 209, P.R. 175 and P.O. 38 individually or mixed.
  • Phthalocyanine colorants are used, e.g. P.G.36 and P.G.7.
  • the pigment preparations according to the invention are notable for their outstanding coloristic and rheological properties, in particular high flocculation stability, easy dispersibility, good rheology, high color strength, transparency and saturation (chroma). They are light in many __ application media and dispersible to high fineness. Such pigment dispersions show excellent rheological properties even with high pigmentation of the paint or printing ink concentrates. Other properties, such as gloss, fastness to overcoating, fastness to solvents, fastness to alkali and acid, fastness to light and weather and high purity of the color, are also very good.
  • the pigment preparations according to the invention can be used to achieve hues in the reddish-blue area which are in demand when used in color filters. Here they ensure high contrast and also meet the other requirements placed on use in color filters, such as high temperature stability or steep and narrow absorption bands. They can be manufactured with high purity and low levels of ions.
  • an alkyd-melamine resin lacquer based on a medium oil was used from the large number of known lacquers Alkyd resin and a butanol etherified melamine resin (AM) selected.
  • the coloristic properties were determined in accordance with DIN 55986.
  • the rheology of the mill base after dispersion was assessed visually on the following five-point scale.
  • the viscosity was determined after the millbase had been diluted to the final pigment concentration using the Rossmann viscospatula, type 301 from Erichsen.
  • the modeling clay is stirred in 2500 parts of 5% aqueous hydrochloric acid at 40 ° C. for 2 hours, the suspension is filtered off with suction, the presscake is washed free of salt and dried.
  • the pigment preparation shows strong and transparent colors
  • 188 g of the press cake are mixed in 97% strength in 266 g of tert-amyl alcohol, 110 g of water and 8.2 g of sulfuric acid. After adding 4.1 g of a 30% aqueous solution of hexadecyltrimethylammonium chloride, the mixture is heated to 130 ° C. and stirred at 130 ° C. for 3 hours. The alcohol is then removed by steam distillation, the suspension is filtered off with suction, the presscake is washed and dried at 80.degree. There will be 35.7 g
  • the copper phthalocyanine in the pigment preparation is in the alpha phase.
  • Example 4 Coatings from Examples 2 and 3, Comparison with Comparative Example A
  • the pigment preparations of Examples 2 and 3 show strong-colored and transparent lacquers with very good fastness to overcoating (determination of the fastness to overcoating according to DIN 53221).
  • the paints are significantly stronger in color and significantly more transparent, the gloss is higher (gloss measurements were made on foil infusions at an angle of 20 ° according to DIN 67530), the color tone is purer, the viscosity of the full-tone varnishes is lower.
  • Example 5 80 g of a commercial tri / tetrachlorophthalocyanine raw blue are dissolved in 800 g of 97% strength sulfuric acid at room temperature. The solution is poured onto a mixture of 2500 g of ice and 1500 g of water. The mixture is heated to 80 ° C. and stirred at this temperature for 30 minutes. The suspension is suctioned off and washed. An aqueous, moist press cake with a solids content of 23.1% is obtained. 170.8 g of the press cake are stirred in 262 g of tert-amyl alcohol, 122.8 g of water and 7.9 g of 100% NaOH.
  • the solution is made up of a mixture
  • 170.8 g of the press cake are in 262 g of tert-amyl alcohol, 122.8 g of water and
  • Example 7 Coatings from Examples 5 and 6 In a high-solid acrylic stoving enamel based on a non-aqueous dispersion (HS), the pigment preparations from Examples 5 and 6 show transparent full-tone coatings, the gloss is high. The metallic paintwork is deep in color and brilliant and shows an angle dependence of the color (color flop). The viscosity of the full-tone paints is low.
  • HS non-aqueous dispersion
  • PE polyester lacquer
  • the viscosity of the full-tone paints is low.
  • the gloss in the HS varnish is high.
  • NC-A nitrocellulose-alcohol gravure printing system
  • FD aqueous flexographic printing system based on acrylic resin
  • OD offset printing system based on alkyd resin
  • Example 12 Coatings from Examples 9, 10 and 11 Strong and transparent coatings are obtained in the HS and PUR coatings, the metallic coatings are deep and brilliant, the viscosity of the HS full-tone coatings is low, the gloss of the HS Paintwork is high.
  • Example J_3 jerke_y n example _10
  • Inks are low. Good burning behavior is observed in the OD printing system.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Paints Or Removers (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

The invention relates to a pigment preparation which is characterised in that it comprises at least one type of copper phthalocyanine pigment of a 15, 15:0, 15:1, 15:2, 15:3, 15:4 and 15:6 C.I. bleu pigment group and at least one type of pigment-dispersing agent of formula (I), wherein n is a number equal to 1, 2, 3 or 4.

Description

Beschreibung description
Pigmentzubereitungen auf Basis PhthalocyaninpigmentPigment preparations based on phthalocyanine pigment
Die vorliegende Erfindung betrifft neue Pigmentzubereitungen mit Phthalocyaninpigment als Basispigment und von C.I. Pigment Violet 23 abgeleitetem Pigmentdispergator.The present invention relates to new pigment preparations with phthalocyanine pigment as the base pigment and by C.I. Pigment Violet 23 derived pigment dispersant.
Pigmentzubereitungen sind Kombinationen von Basispigmenten und sogenannten Pigmentdispergatoren, das sind mit spezifisch wirksamen Gruppen substituierte Pigmente. Die Pigmentdispergatoren werden den Pigmenten zugesetzt, um die Dispergierung in den Anwendungsmedien, insbesondere in Lacken und Druckfarben, zu erleichtern und um die rheologischen und coloristischen Eigenschaften der Pigmente zu verbessern. Die Viskosität der hochpigmentierten Lack- und Druckfarbenkonzentrate (Millbase) wird erniedrigt und die Flockung der Pigmentteilchen vermindert. Dadurch kann beispielsweise die Farbstärke, die Transparenz und der Glanz erhöht werden. Dies ist insbesondere bei Metalliclacken erwünscht.Pigment preparations are combinations of base pigments and so-called pigment dispersants, which are pigments substituted with specific active groups. The pigment dispersants are added to the pigments in order to facilitate dispersion in the application media, in particular in paints and printing inks, and to improve the rheological and coloristic properties of the pigments. The viscosity of the highly pigmented lacquer and printing ink concentrates (mill base) is reduced and the flocculation of the pigment particles is reduced. For example, the color strength, transparency and gloss can be increased. This is particularly desirable for metallic paints.
Die WO 02/04563 offenbart Dispersionen enthaltend eine Mischung aus einer festen Lösung eines Wirts- und eines Gastpigments mit einemWO 02/04563 discloses dispersions containing a mixture of a solid solution of a host and a guest pigment with one
Rheologieverbesserer.Rheology.
Die EP-A-1 130 065 offenbart ähnliche Mischungen aus einemEP-A-1 130 065 discloses similar mixtures of one
Kupferphthalocyanin und einem zweiten organischen Pigment, die gegebenenfalls ein Kupferphthalocyaninderivat enthalten können.Copper phthalocyanine and a second organic pigment, which may optionally contain a copper phthalocyanine derivative.
Die bekannten Pigmente und Pigmentzubereitungen genügen nicht immer allen Anforderungen der Technik. Insbesondere für Blaupigmente bestand ein Verbesserungsbedarf hinsichtlich der Farbstärke, Transparenz, Rheologie und Glanz.The known pigments and pigment preparations do not always meet all of the technical requirements. In particular for blue pigments there was a need for improvement in terms of color strength, transparency, rheology and gloss.
Es wurde gefunden, dass die Aufgabe überraschenderweise durch eine Pigmentzubereitung enthaltend ein Phthalocyaninpigment als Basispigment und einen speziellen Pigmentdispergator gelöst wird.It has been found that the object is surprisingly achieved by a pigment preparation containing a phthalocyanine pigment as the base pigment a special pigment dispersant is dissolved.
Gegenstand der Erfindung sind Pigmentzubereitungen gekennzeichnet durch einen Gehalt an mindestens einem, vorzugsweise 1 oder 2, Kupferphthalocyaninpigment aus der Gruppe C.I. Pigment Blue 15, 15:0, 15:1, 15:2, 15:3, 15:4 und 15:6, sowie mindestens einem, vorzugsweise 1, 2 oder 3, Pigmentdispergator der Formel (I),The invention relates to pigment preparations characterized by a content of at least one, preferably 1 or 2, copper phthalocyanine pigment from the group C.I. Pigment Blue 15, 15: 0, 15: 1, 15: 2, 15: 3, 15: 4 and 15: 6, and at least one, preferably 1, 2 or 3, pigment dispersant of the formula (I),
worin n eine Zahl 1, 2, 3 oder 4, vorzugsweise 1 oder 2, bedeutet; und wobei das Gewichtsverhältnis von Kupferphthalocyaninpigment zu Pigmentdispergator der Formel (I) bevorzugt zwischen (99,9 zu 0,1) und (75 zu 25), besonders bevorzugt zwischen (99 zu 1) und (80 zu 20), insbesondere zwischen (98 zu 2) und (85 zu 15), und ganz besonders bevorzugt zwischen (97 zu 2,5) und (90 zu 10) liegt. wherein n is a number 1, 2, 3 or 4, preferably 1 or 2; and the weight ratio of copper phthalocyanine pigment to pigment dispersant of the formula (I) preferably between (99.9 to 0.1) and (75 to 25), particularly preferably between (99 to 1) and (80 to 20), in particular between (98 to 2) and (85 to 15), and very particularly preferably between (97 to 2.5) and (90 to 10).
Die Pigmentdispergatoren der Formel (I) sind bekannte Verbindungen und lassen sich nach bekannten Verfahren herstellen, z.B. nach EP-A-321 919.The pigment dispersants of formula (I) are known compounds and can be prepared by known processes, e.g. according to EP-A-321 919.
Die erfindungsgemäßen Pigmentzubereitungen können neben dem Kupferphthalocyaninpigment und dem Pigmentdispergator noch weitere übliche Hilfsmittel oder Zusatzstoffe enthalten, wie beispielsweise Tenside, nichtpigmentäre und pigmentäre Dispergiermittel, Füllstoffe, Stellmittel, Harze, Wachse, Entschäumer, Antistaubmittel, Extender, Antistatika, Farbmittel zum Nuancieren, beispielsweise P.V.23, Konservierungsmittel, Trocknungsverzögerungsmittel, Additive zur Steuerung der Rheologie, Netzmittel, Antioxidantien, UV-Absorber und Lichtstabilisatoren, vorzugsweise in einer Menge von 0,1 bis 25 Gew.-%, insbesondere 0,5 bis 15 Gew.-%, bezogen auf das Gesamtgewicht der Pigmentzubereitung. Es ist auch möglich, den Pigmentdispergator als ein Gemisch aus unsubstituiertem, mono- und disubstituiertem P.V.23 zu synthetisieren und einzusetzen.In addition to the copper phthalocyanine pigment and the pigment dispersant, the pigment preparations according to the invention can also contain other customary auxiliaries or additives, such as, for example, surfactants, non-pigmentary and pigmentary dispersants, fillers, adjusting agents, resins, waxes, defoamers, anti-dusting agents, extenders, antistatic agents, colorants for shading, for example PV23, Preservatives, drying retardants, additives for controlling the rheology, wetting agents, Antioxidants, UV absorbers and light stabilizers, preferably in an amount of 0.1 to 25% by weight, in particular 0.5 to 15% by weight, based on the total weight of the pigment preparation. It is also possible to synthesize and use the pigment dispersant as a mixture of unsubstituted, mono- and disubstituted PV23.
Als Tenside kommen anionische oder anionaktive, kationische oder kationaktive und nichtionische oder amphotere Substanzen oder Mischungen dieser Mittel in Betracht.Suitable surfactants are anionic or anionic, cationic or cationic and nonionic or amphoteric substances or mixtures of these agents.
Als anionaktive Substanzen kommen beispielsweise Fettsäuretauride, Fettsäure- N-methyltauride, Fettsäureisethionate, Alkylphenylsulfonate, beispielsweise Dodecylbenzolsulfonsäure, Alkylnaphthalinsulfonate, Alkylphenolpolyglykolethersulfate, Fettalkoholpolyglykolethersulfate, Fettsäureamid-polyglykolethersulfate, Alkylsulfosuccinamate, Alkenylbemsteinsäurehalbester, Fettalkoholpolygiykol-ethersulfosuccinate, Alkansulfonate, Fettsäureglutamate, Alkylsulfosuccinate, Fettsäuresarkoside; Fettsäuren, beispielsweise Palmitin-, Stearin- und Ölsäure; die Salze dieser anionischen Substanzen und Seifen, beispielsweise Alkalisalze von Fettsäuren, Naphthensäuren und Harzsäuren, beispielsweise Abietinsäure, alkalilösliche Harze, beispielsweise kolophoniummodifizierte Maleinatharze und Kondensationsprodukte auf Basis von Cyanurchlorid, Taurin, N,N'-Diethylamino- propylamin und p-Phenylendiamin in Betracht. Bevorzugt sind Harzseifen, d.h. Alkalisalze von Harzsäuren.Anionic substances for example, fatty acid taurides, fatty acid N-methyltaurides, fatty acid isethionates, alkylphenyl, such as dodecylbenzenesulfonic acid, alkylnaphthalenesulfonates, alkylphenol polyglycol ether sulfates, fatty alcohol polyglycol ether, fatty acid amide polyglycol ether sulfates, alkyl sulfosuccinamates, Alkenylbemsteinsäurehalbester, Fettalkoholpolygiykol-ethersulfosuccinate, alkane sulfonates, fatty acid glutamates, alkyl sulfosuccinates, fatty acid sarcosides; Fatty acids, for example palmitic, stearic and oleic acid; the salts of these anionic substances and soaps, for example alkali metal salts of fatty acids, naphthenic acids and resin acids, for example abietic acid, alkali-soluble resins, for example rosin-modified maleate resins and condensation products based on cyanuric chloride, taurine, N, N'-diethylamino-propylamine and p-phenylenediamine. Resin soaps, i.e. Alkaline salts of resin acids.
Als kationaktive Substanzen kommen beispielsweise quaternäre Ammoniumsalze, Fettaminoxalkylate, Polyoxyalkylenamine, oxalkylierte Polyamine, Fettaminpolyglykolether, primäre, sekundäre oder tertiäre Amine, beispielsweise Alkyl-, Cycloalkyl oder cyclisierte Alkylamine, insbesondere Fettamine, von Fettaminen oder Fettalkoholen abgeleitete Di- und Polyamine und deren Oxalkylate, von Fettsäuren abgeleitete Imidazoline, Polyaminoamido- oder Polyaminoverbindungen oder -harze mit einem Aminindex zwischen 100 und 800 mg KOH pro g der Polyaminoamido- oder Polyaminoverbindung, und Salze dieser kationenaktiven Substanzen, wie beispielsweise Acetate oder Chloride, in Betracht.Examples of cationic substances are quaternary ammonium salts, fatty amine oxyalkylates, polyoxyalkylene amines, oxyalkylated polyamines, fatty amine polyglycol ethers, primary, secondary or tertiary amines, for example alkyl, cycloalkyl or cyclized alkylamines, in particular fatty amines, di- and polyamines derived from fatty amines or fatty alcohols and their oxalkylates Imidazolines derived from fatty acids, polyaminoamido or polyamino compounds or resins with an amine index between 100 and 800 mg KOH per g of the polyaminoamido or polyamino compound, and salts these cation-active substances, such as acetates or chlorides, into consideration.
Als nichtionogene und amphotere Substanzen kommen beispielsweise Fettamincarboxyglycinate, Aminoxide, Fettalkoholpolyglykolether, Fettsäurepolyglykolester, Betaine, wie Fettsäureamid-N-propyl-betaine, Phosphorsäureester von aliphatischen und aromatischen Alkoholen, Fettalkoholen oder Fettalkoholpolyglykolethem, Fettsäureamidethoxylate, Fettalkohol- alkylenoxid-Addukte und Aikylphenolpolyglykolether in Betracht.Examples of nonionic and amphoteric substances include fatty amine carboxyglycinates, amine oxides, fatty alcohol polyglycol ethers, fatty acid polyglycol esters, betaines, such as fatty acid amide-N-propyl-betaine, phosphoric acid esters of aliphatic and aromatic alcohols, fatty alcohols or fatty alcohol polyglycol ethers, fatty acid alkylene phenol alcohols, fatty acid alkylene phenol alcohols, fatty acid amide phenol alcohols and fatty acid alkylene phenol alcohols, fatty acid alkoxide phenoxides and fatty acid amide ethoxylate, fatty acid alkoxide phenol alcohols, fatty acid alkoxide ethoxylates, fatty acid alkoxide ethoxylates, fatty acid alkoxide ethoxylates, fatty acid alkoxide ethoxylates and fatty acid amide ethoxylate, fatty acid alkoxide ethoxylate, fatty acid alkoxide ethoxylate, fatty acid alkoxide ethoxylate, fatty acid alkoxide ethoxylate as well as fatty acid amide ethoxylate, fatty acid amide ethoxylate, fatty acid amide ethoxylate, fatty acid amide ethoxylate, fatty acid amide ethoxylate and fatty acid amide alkoxides as,
Mit nichtpigmentären Dispergiermitteln sind Substanzen gemeint, die strukturell nicht von organischen Pigmenten abgeleitet sind. Sie werden als Dispergiermittel entweder bereits bei der Herstellung von Pigmenten, oft aber auch bei der Einarbeitung der Pigmente in die zu färbenden Anwendungsmedien, beispielsweise bei der Herstellung von Lacken oder Druckfarben durch Dispergierung der Pigmente in den entsprechenden Bindemitteln, zugegeben. Es können polymere Substanzen sein, beispielsweise Polyolefine, Polyester, Polyether, Polyamide, Polyimine, Polyacrylate, Polyisocyanate, Blockcopolymere daraus, Copolymere aus den entsprechenden Monomeren oder Polymere einer Klasse, die mit wenigen Monomeren einer anderen Klasse modifiziert sind. Diese polymeren Substanzen tragen polare Ankergruppen wie beispielsweise Hydroxy-, Amino-, Imino- und Ammoniumgruppen, Carbonsäure- und Carboxylatgruppen, Sulfonsäure- und Sulfonatgruppen oder Phosphonsäure- und Phosphonatgruppen, und können auch mit aromatischen, nicht pigmentären Substanzen modifiziert sein. Nichtpigmentäre Dispergiermittel können des weiteren auch chemisch mit funktioneilen Gruppen modifizierte aromatische, nicht von organischen Pigmenten abgeleitete Substanzen sein. Derartige nichtpigmentäre Dispergiermittel sind dem Fachmann bekannt und zum Teil im Handel erhältlich (z.B. Solsperse®, Avecia; Disperbyk®, Byk-Chemie, Efka®, Efka). Es sollen im Folgenden stellvertretend einige Typen genannt werden, zum Einsatz können jedoch prinzipiell beliebige andere, beschriebene Substanzen kommen, beispielsweise Kondensationsprodukte aus Isocyanaten und Alkoholen, Di- oder Polyolen, Aminoalkoholen oder Di- oder Polyaminen, Polymere aus Hydroxycarbonsäuren, Copolymere aus Olefinmonomeren oder Vinylmonomeren und ethylenisch ungesättigten Carbonsäuren und -estern, urethanhaltige Polymere von ethylenisch ungesättigten Monomeren, urethanmodifizierte Polyester, Kondensationsprodukte auf Basis von Cyanurhalogeniden, Nitroxylverbindungen enthaltende Polymere, Polyesteramide, modifizierte Polyamide, modifizierte Acryipolymere, Dispergiermittel mit kammartiger Struktur aus Polyestem und Acrylpolymeren, Phosphorsäureester, von Triazin abgeleitete Polymere, modifizierte Polyether, oder von aromatischen, nichtpigmentären Substanzen abgeleitete Dispergiermittel. Dabei werden diese Grundstrukturen vielfach weiter modifiziert, beispielsweise durch chemische Umsetzung mit weiteren, funktioneile Gruppen tragenden Substanzen oder durch Salzbildung. Mit pigmentären Dispergiermitteln sind Pigmentdispergatoren gemeint, die sich von einem organischen Pigment als Grundkörper ableiten und durch chemische Modifizierung dieses Grundkörpers hergestellt werden, beispielsweise saccharinhaltige Pigmentdispergatoren, piperidylhaltige Pigmentdispergatoren, von Naphthalin oder Perylen abgeleitete Pigmentdispergatoren, Pigmentdispergatoren mit funktioneilen Gruppen, die über eine Methylengruppe mit deniPigmentgrundkörper verknüpft sind, mit Polymeren chemisch modifizierte Pigmentgrundkörper, Sulfosäure-, Sulfonamid- oder Sulfosäureestergruppen haltige Pigmentdispergatoren, Ether- oder Thioethergruppen haltige Pigmentdispergatoren, oder Carbonsäure-, Carbonsäureester- oder Carbonamidgruppen haltige Pigmentdispergatoren.Nonpigmentary dispersants mean substances that are not structurally derived from organic pigments. They are added as dispersants either already during the production of pigments, but often also when the pigments are incorporated into the application media to be colored, for example in the production of lacquers or printing inks by dispersing the pigments in the corresponding binders. They can be polymeric substances, for example polyolefins, polyesters, polyethers, polyamides, polyimines, polyacrylates, polyisocyanates, block copolymers thereof, copolymers from the corresponding monomers or polymers from one class which have been modified with a few monomers from another class. These polymeric substances carry polar anchor groups, such as, for example, hydroxyl, amino, imino and ammonium groups, carboxylic acid and carboxylate groups, sulfonic acid and sulfonate groups or phosphonic acid and phosphonate groups, and can also be modified with aromatic, non-pigmentary substances. Non-pigmentary dispersants can furthermore also be aromatic substances chemically modified with functional groups and not derived from organic pigments. Nonpigmentary dispersants are known in the art and some are available commercially (for example, Solsperse ®, Avecia; Disperbyk ®, Byk-Chemie, Efka ®, Efka). A few types are to be mentioned in the following, but in principle any other substances described can be used, for example condensation products from isocyanates and alcohols, di- or polyols, amino alcohols or di- or polyamines, polymers from hydroxycarboxylic acids, Copolymers of olefin monomers or vinyl monomers and ethylenically unsaturated carboxylic acids and esters, urethane-containing polymers of ethylenically unsaturated monomers, urethane-modified polyesters, condensation products based on cyanuric halides, polymers containing nitroxyl compounds, polyesteramides, modified polyamides, modified acrylic polymers, dispersants with a comb-like acrylic polymer structure composed of polyesters Phosphoric acid esters, polymers derived from triazine, modified polyethers, or dispersants derived from aromatic, non-pigmentary substances. These basic structures are often further modified, for example by chemical reaction with other functional groups or by salt formation. Pigmentary dispersants mean pigment dispersants which are derived from an organic pigment as the base body and are prepared by chemical modification of this base body, for example saccharin-containing pigment dispersants, piperidyl-containing pigment dispersants, naphthalene or perylene-derived pigment dispersants, pigment dispersants with functional groups which have a methylene group with the pigment base are linked to polymer chemically modified pigment base bodies, pigment dispersants containing sulfonic acid, sulfonamide or sulfonic acid ester groups, pigment dispersants containing ether or thioether groups, or pigment dispersants containing carboxylic acid, carboxylic acid ester or carbonamide groups.
Anionische Gruppen der als Hilfsmittel eingesetzten nichtpigmentären und pigmentären Dispergatoren, Tenside oder Harze können auch verlackt werden, beispielsweise durch Ca-, Mg-, Ba-, Sr-, Mn- oder AI-Ionen oder durch quaternäre Ammoniumionen.Anionic groups of the non-pigmentary and pigmentary dispersants, surfactants or resins used as auxiliaries can also be lacquered, for example by Ca, Mg, Ba, Sr, Mn or Al ions or by quaternary ammonium ions.
Mit Füllstoffe bzw. Extender sind eine Vielzahl von Substanzen gemäß DIN 55943 und DIN EN 971-1 gemeint, beispielsweise die verschiedenen Typen von Talk, Kaolin, Glimmer, Dolomit, Kalk, Bariumsulfat oder Titandioxid. Dabei hat sich die Zugabe besonders vor der Pulverisierung der getrockneten Pigmentzubereitung bewährt. Die erfindungsgemäße Pigmentzubereitung kann als vorzugsweise wässriger Presskuchen oder Feuchtgranulat zum Einsatz kommen, in der Regel handelt es sich jedoch um feste Systeme von rieselfähiger, pulverförmiger Beschaffenheit oder um Granulate.Fillers or extenders mean a large number of substances in accordance with DIN 55943 and DIN EN 971-1, for example the different types of talc, kaolin, mica, dolomite, lime, barium sulfate or titanium dioxide. The addition has proven particularly useful before pulverizing the dried pigment preparation. The pigment preparation according to the invention can be used as a preferably aqueous press cake or moist granules, but as a rule these are solid systems of free-flowing, powdery nature or granules.
Gegenstand der Erfindung ist auch ein Verfahren zur Herstellung einer erfindungsgemäßen Pigmentzubereitung, dadurch gekennzeichnet, dass man den Pigmentdispergator der Formel (I) und das Kupferphthalocyaninpigment miteinander mischt oder an einem beliebigen Zeitpunkt ihres Herstellungsprozesses aufeinander einwirken lässt. Beispielsweise können die trockenen Komponenten in Granulat- oder Pulverform vor oder nach einer Mahlung gemischt werden; die eine Komponente kann zur anderen Komponente in feuchter oder trockener Form zugegeben werden, beispielsweise durch Mischen der Komponenten in Form der feuchten Presskuchen. Das Mischen kann beispielsweise durch Acidpasting, Acidswelling, durch eine Mahlung in trockener Form, in feuchter Form, beispielsweise durch Knetung, oder in Suspension erfolgen,.ode jdurch eine Kombinatio dieser /erfahren.. DieThe invention also relates to a process for the preparation of a pigment preparation according to the invention, characterized in that the pigment dispersant of the formula (I) and the copper phthalocyanine pigment are mixed with one another or are allowed to act on one another at any point in their production process. For example, the dry components in granular or powder form can be mixed before or after grinding; one component can be added to the other component in moist or dry form, for example by mixing the components in the form of the moist press cake. The mixing can take place, for example, by acid pasting, acid swelling, by grinding in dry form, in moist form, for example by kneading, or in suspension, or by a combination of these
Mahlung kann unter Zusatz von Wasser, Lösemitteln, Säuren oder Mahlhilfsmitteln wie Salz durchgeführt werden.Grinding can be carried out with the addition of water, solvents, acids or grinding aids such as salt.
Das Mischen kann auch durch Zugabe des Pigmentdispergators zumMixing can also be done by adding the pigment dispersant to the
Kupferphthalocyaninpigment während des Herstellungsprozess desCopper phthalocyanine pigment during the manufacturing process of
Kupferphthalocyaninpigments erfolgen.Copper phthalocyanine pigments take place.
Die Zugabe des Pigmentdispergators zum Phthalocyanin erfolgt vorzugsweise nach der chemischen Bildung des Phthalocyaninringsystems aus den entsprechenden Phthalsäurederivaten.The pigment dispersant is preferably added to the phthalocyanine after the chemical formation of the phthalocyanine ring system from the corresponding phthalic acid derivatives.
Das bei der chemischen Synthese gewöhnlicherweise grobkristallin anfallendeThe one that usually occurs in chemical synthesis in the form of coarse crystals
Phthalocyanin-Rohpigment wird zerkleinert, beispielsweise durch Acidpasting,Raw phthalocyanine pigment is comminuted, for example by acid pasting,
Acidswelling, Trocken- oder Nassmahlung. Die dabei gebildeten feinkristallinenAcidswelling, dry or wet grinding. The fine crystalline formed
Phthalocyanine können meist einer Nachbehandlung, im allgemeinen als Finish bezeichnet, unterworfen werden, beispielsweise in Wasser und/oder Lösemitteln und meist unter erhöhter Temperatur, beispielsweise bis 200°C, und ggf. erhöhtem Druck. Selbstverständlich kann der Pigmentdispergator auch in Teilportionen zu unterschiedlichen Zeiten zugegeben werden.Phthalocyanines can usually be subjected to an aftertreatment, generally referred to as a finish, for example in water and / or solvents and usually at elevated temperature, for example up to 200 ° C., and, if appropriate, increased pressure. Of course, the pigment dispersant can also be used in Portions are added at different times.
Bei der Trocknung einer feuchten Pigmentzubereitung können die bekannten Trockenaggregate zum Einsatz kommen, wie Trockenschränke, Schaufelradtrockner, Taumeltrockner, Kontakttrockner und insbesondere Spinflash- und Sprühtrockner. Durch die Wahl eines geeigneten Trockenaggregates können auch staubarme und rieselfähige Pulver oder Granulate erzeugt werden.When drying a moist pigment preparation, the known drying units can be used, such as drying cupboards, paddle wheel dryers, tumble dryers, contact dryers and in particular spin flash and spray dryers. By choosing a suitable drying unit, low-dust and free-flowing powders or granules can also be produced.
Bevorzugt werden die Pigmentzubereitungen durch Mahlung der Komponenten in trockener Form, in feuchter Form oder in Suspension hergestellt, insbesondere durch Salzknetung der Komponenten; des weiteren ist ein bevorzugtes Herstellungsverfahren die Zugabe des Pigmentdispergators zum Kupferphthalocyaninpigment während oder nach einem Finish. Ein dritte bevorzugte Herstellvariante ist das Mischen in trockener Form vor einer Pulverisierung.The pigment preparations are preferably prepared by grinding the components in dry form, in moist form or in suspension, in particular by salt kneading the components; furthermore, a preferred production process is the addition of the pigment dispersant to the copper phthalocyanine pigment during or after a finish. A third preferred production variant is mixing in dry form before pulverization.
Die erfindungsgemäßen Pigmentzubereitungen lassen sich zum Pigmentieren von hochmolekularen_or^anischen_Materialien_natürlicher .oder synthetischer Herkunft einsetzen, beispielsweise von Kunststoffen, Harzen, Lacken, Anstrichfarben, elektrophotographischen Tonern und Entwicklern, Elektretmaterialien, Farbfiltern sowie von Tinten, Druckfarben und Saatgut.The pigment preparations according to the invention can be used to pigment high-molecular_orian_materials_natural. Or synthetic origin, for example plastics, resins, lacquers, paints, electrophotographic toners and developers, electret materials, color filters and inks, printing inks and seeds.
Hochmolekulare organische Materialien, die mit den erfindungsgemäßen Pigmentzubereitungen pigmentiert werden können, sind beispielsweise Celluloseverbindungen, wie beispielsweise Celluloseether und -ester, wie Ethylcellulose, Nitrocellulose, Celluloseacetate oder Cellulosebutyrate, natürliche Bindemittel, wie beispielsweise Fettsäuren, fette Öle, Harze und deren Umwandlungsprodukte, oder Kunstharze, wie Polykondensate, Polyaddukte, Polymerisate und Copolymerisate, wie beispielsweise Aminoplaste, insbesondere Harnstoff- und Melaminformaldehydharze, Alkydharze, Acrylharze, Phenoplaste und Phenolharze, wie Novolake oder Resole, Harnstoffharze, Polyvinyle, wie Polyvinylalkohole, Polyvinylacetale, Polyvinylacetate oder Polyvinylether, Polycarbonate, Polyolefine, wie Polystyrol, Polyvinylchlorid, Polyethylen oder Polypropylen, Poly(meth)acrylate und deren Copolymerisate, wie Polyacrylsäureester oder Polyacrylnitrile, Polyamide, Polyester, Polyurethane, Cumaron-Inden- und Kohlenwasserstoffharze, Epoxidharze, ungesättigte Kunstharze (Polyester, Acrylate) mit den unterschiedlichen Härtemechanismen, Wachse, Aldehyd- und Ketonharze, Gummi, Kautschuk und seine Derivate und Latices, Casein, Silikone und Silikonharze; einzeln oder in Mischungen. Dabei spielt es keine Rolle, ob die erwähnten hochmolekularen organischen Verbindungen als plastische Massen, Schmelzen oder in Form von Spinnlösungen, Dispersionen, Lacken, Anstrichstoffen oder Druckfarben vorliegen. Je nach Verwendungszweck erweist es sich als vorteilhaft, die erfindungsgemäßen Pigmentzubereitungen als Blend oder in Form von Präparationen oder Dispersionen zu benutzen.High molecular weight organic materials that can be pigmented with the pigment preparations according to the invention are, for example, cellulose compounds, such as, for example, cellulose ethers and esters, such as ethyl cellulose, nitrocellulose, cellulose acetates or cellulose butyrates, natural binders, such as, for example, fatty acids, fatty oils, resins and their conversion products, or synthetic resins , such as polycondensates, polyadducts, polymers and copolymers, such as, for example, aminoplasts, in particular urea and melamine formaldehyde resins, alkyd resins, acrylic resins, phenoplasts and phenol resins, such as novolaks or resols, urea resins, polyvinyls, such as polyvinyl alcohols, polyvinyl acetals, polyvinyl ether polyolefins, or polyvinyl ether polyolefins, or polyvinyl ether polyols, such as polystyrene, polyvinyl chloride, polyethylene or Polypropylene, poly (meth) acrylates and their copolymers, such as polyacrylic acid esters or polyacrylonitriles, polyamides, polyesters, polyurethanes, coumarone indene and hydrocarbon resins, epoxy resins, unsaturated synthetic resins (polyesters, acrylates) with the different hardening mechanisms, waxes, aldehyde and ketone resins, Gum, rubber and its derivatives and latices, casein, silicones and silicone resins; individually or in mixtures. It does not matter whether the high-molecular organic compounds mentioned are in the form of plastic masses, melts or in the form of spinning solutions, dispersions, lacquers, paints or printing inks. Depending on the intended use, it proves advantageous to use the pigment preparations according to the invention as a blend or in the form of preparations or dispersions.
Es ist auch möglich, die Pigmentzubereitung erst bei der Einarbeitung in das hochmolekulare organische Medium herzustellen.It is also possible to prepare the pigment preparation only when it is incorporated into the high-molecular organic medium.
Gegenstand der vorliegenden Erfindung ist daher auch ein hochmolekulares organisches Material, enthaltend eine färberisch wirksame Menge einererfindungsgemäßen Pigmentzubereitung...The present invention therefore also relates to a high molecular weight organic material containing a dye-effective amount of a pigment preparation according to the invention ...
Bezogen auf das zu pigmentierende, hochmolekulare organische Material setzt man die erfindungsgemäße Pigmentzubereitung meist in einer Menge von 0,01 bis 30 Gew.-%, vorzugsweise 0,1 bis 15 Gew.-%, ein.Based on the high-molecular organic material to be pigmented, the pigment preparation according to the invention is usually used in an amount of 0.01 to 30% by weight, preferably 0.1 to 15% by weight.
Es ist in manchen Fällen auch möglich, anstelle einer gemahlenen und/oder gefinishten erfindungsgemäßen Pigmentzubereitung ein entsprechendes Crude mit einer BET-Oberfläche von größer als 2 m2/g, bevorzugt größer als 5 m2/g, einzusetzen. Dieser Crude kann zur Herstellung von Farbkonzentraten in flüssiger oder fester Form in Konzentrationen von 5 bis 99 Gew.-%, allein oder gegebenenfalls in Mischung mit anderen Crudes oder Fertigpigmenten, verwendet werden.In some cases it is also possible to use a corresponding crude with a BET surface area of greater than 2 m 2 / g, preferably greater than 5 m 2 / g, instead of a ground and / or finished pigment preparation according to the invention. This crude can be used to produce color concentrates in liquid or solid form in concentrations of 5 to 99% by weight, alone or optionally in a mixture with other crudes or finished pigments.
Die erfindungsgemäßen Pigmentzubereitungen sind auch geeignet als Farbmittel in elektrophotographischen Tonern und Entwicklern, wie beispielsweise Ein- oder Zweikomponentenpulvertonern (auch Ein- oder Zweikomponenten-Entwickler genannt), Magnettoner, Flüssigtoner, Polymerisationstoner sowie Spezialtoner. Typische Tonerbindemittel sind Polymerisations-, Polyadditions- und Polykondensationsharze, wie Styrol-, Styrolacrylat-, Styrolbutadien-, Acrylat-, Polyester-, Phenol-Epoxidharze, Polysulfone, Polyurethane, einzeln oder in Kombination, sowie Polyethylen und Polypropylen, die noch weitere Inhaltsstoffe, wie Ladungssteuermittel, Wachse oder Fließhilfsmittel, enthalten können oder im nachhinein mit diesen Zusätzen modifiziert werden.The pigment preparations of the invention are also suitable as colorants in electrophotographic toners and developers, such as, for example, one- or two-component powder toners (also called one- or two-component developers), magnetic toners, liquid toners, polymerization toners and special toners. Typical toner binders are polymerization, polyaddition and polycondensation resins, such as styrene, styrene-acrylate, styrene-butadiene, acrylate, polyester, phenol-epoxy resins, polysulfones, polyurethanes, individually or in combination, and polyethylene and polypropylene, which also contain other ingredients, such as charge control agents, waxes or flow aids, or can be modified with these additives afterwards.
Des weiteren sind die erfindungsgemäßen Pigmentzubereitungen geeignet als Farbmittel in Pulvern und Pulverlacken, insbesondere in triboelektrisch oder elektrokinetisch versprühbaren Pulverlacken, die zur Oberflächenbeschichtung von Gegenständen aus beispielsweise Metall, Holz, Kunststoff, Glas, Keramik, Beton, Textilmaterial, Papier oder Kautschuk zur Anwendung kommen. Als Pulverlackharze werden typischerweise Epoxidharze, carboxyl- und hydroxylgruppenhaltige Polyesterharze, Polyurethan- und Acrylharze zusammen mit üblichen Härtern eingesetzt. Auch Kombinationen von Harzen finden Verwendung. So werden beispielsweise häufig Epoxidharze in Kombination mit carboxyl- und hydroxylgruppenhaltigen Polyesterharzen eingesetzt. Typische Härterkomponenten (in Abhängigkeityom Harzsystem) sind beispielsweise Säureanhydride, Imidazole sowie Dicyandiamid und deren Abkömmlinge, verkappte Isocyanate, Bisacylurethane, Phenol- und Melaminharze, Triglycidylisocyanurate, Oxazoline und Dicarbonsäuren.Furthermore, the pigment preparations according to the invention are suitable as colorants in powders and powder coatings, in particular in triboelectrically or electrokinetically sprayable powder coatings which are used for the surface coating of objects made of, for example, metal, wood, plastic, glass, ceramic, concrete, textile material, paper or rubber. Epoxy resins, carboxyl- and hydroxyl-containing polyester resins, polyurethane and acrylic resins are typically used as powder coating resins together with conventional hardeners. Combinations of resins are also used. For example, epoxy resins are often used in combination with carboxyl- and hydroxyl-containing polyester resins. Typical hardener components (depending on the resin system) are, for example, acid anhydrides, imidazoles and dicyandiamide and their derivatives, blocked isocyanates, bisacylurethanes, phenolic and melamine resins, triglycidyl isocyanurates, oxazolines and dicarboxylic acids.
Außerdem sind die erfindungsgemäßen Pigmentzubereitungen als Farbmittel inIn addition, the pigment preparations according to the invention are colorants in
Ink-Jet Tinten auf wässriger und nichtwässriger Basis sowie in solchen Tinten, die nach dem Hot-melt-Verfahren arbeiten, geeignet.Ink-jet inks on an aqueous and non-aqueous basis and in such inks that work according to the hot-melt process are suitable.
Ink-Jet-Tinten enthalten im allgemeinen insgesamt 0,5 bis 15 Gew.-%, vorzugsweise 1 ,5 bis 8 Gew.-%, (trocken gerechnet) einer oder mehrerer der erfindungsgemäßen Pigmentzubereitungen.Ink-jet inks generally contain a total of 0.5 to 15% by weight, preferably 1.5 to 8% by weight (calculated on a dry basis) of one or more of the pigment preparations according to the invention.
Mikroemulsionstinten basieren auf organischen Lösemitteln, Wasser und ggf. einer zusätzlichen hydrotropen Substanz (Grenzflächenvermittler).Microemulsion inks are based on organic solvents, water and possibly an additional hydrotropic substance (interface mediator).
Mikroemulsionstinten enthalten im allgemeinen 0,5 bis 15 Gew.-%, vorzugsweiseMicroemulsion inks generally contain 0.5 to 15% by weight, preferably
1 ,5 bis 8 Gew.-%, einer oder mehrerer der erfindungsgemäßen1, 5 to 8 wt .-%, one or more of the invention
Pigmentzubereitungen, 5 bis 99 Gew.-% Wasser und 0,5 bis 94,5 Gew.-% organisches Lösungsmittel und/oder hydrotrope Verbindung. "Solvent based" Ink-Jet-Tinten enthalten vorzugsweise 0,5 bis 15 Gew.-% einer oder mehrerer der erfindungsgemäßen Pigmentzubereitungen, 85 bis 99,5 Gew.-% organisches Lösungsmittel und/oder hydrotrope Verbindungen. Hot-Melt-Tinten basieren meist auf wachsen, Fettsäuren, Fettalkoholen oder Sulfonamiden, die bei Raumtemperatur fest sind und bei Erwärmen flüssig werden, wobei der bevorzugte Schmelzbereich zwischen ca. 60°C und ca. 140°C liegt. Hot-Melt Ink-Jet-Tinten bestehen z.B. im wesentlichen aus 20 bis 90 Gew.-%Pigment preparations, 5 to 99% by weight of water and 0.5 to 94.5% by weight organic solvent and / or hydrotropic compound. "Solvent based" ink-jet inks preferably contain 0.5 to 15% by weight of one or more of the pigment preparations according to the invention, 85 to 99.5% by weight of organic solvent and / or hydrotropic compounds. Hot-melt inks are mostly based on waxes, fatty acids, fatty alcohols or sulfonamides, which are solid at room temperature and become liquid when heated, the preferred melting range being between approx. 60 ° C and approx. 140 ° C. Hot melt ink jet inks consist essentially of 20 to 90% by weight, for example
Wachs und 1 bis 10 Gew.-% einer oder mehrerer der erfindungsgemäßen Pigmentzubereitungen. Weiterhin können 0 bis 20 Gew.-% eines zusätzlichenWax and 1 to 10% by weight of one or more of the pigment preparations according to the invention. Furthermore, 0 to 20 wt .-% of an additional
Polymers (als "Farbstofflöser"),Polymers (as "dye dissolvers"),
0 bis 5 Gew.-% Dispergierhilfsmittel, 0 bis 20 Gew.-% Viskositätsveränderer, 0 bis0 to 5 wt .-% dispersing aid, 0 to 20 wt .-% viscosity modifier, 0 to
20 Gew.-% Plastifizierer, 0 bis 10 Gew.-% Klebrigkeitszusatz, 0 bis 10 Gew.-%20% by weight plasticizer, 0 to 10% by weight tackifier additive, 0 to 10% by weight
Transparenzstabilisator (verhindert z.B. Kristallisation der Wachse) sowie 0 bisTransparency stabilizer (prevents e.g. crystallization of the waxes) and 0 to
2 Gew.-% Antioxidans enthalten sein.2 wt .-% antioxidant may be included.
Weiterhin sind die erfindungsgemäßen Pigmentzubereitungen auch als Farbmittelfür.FaLbfjIter, sowohl für die additive wie auch für die subtraktive Farberzeugung, wie beispielsweise in elektro-optischen Systemen wie Fernsehbildschirmen, LCD (liquid crystal displays), Charge coupled devices, plasma displays oder electroluminescent displays, die wiederum aktive (twisted nematic) oder passive (supertwisted nematic) ferroelectric displays oder light-emitting diodes sein können, sowie als Farbmittel für elektronische Tinten („electronic inks" bzw. „e-inks") oder „electronic paper" („e-paper") geeignet. Bei der Herstellung von Farbfiltern, sowohl reflektierender wie durchsichtiger Farbfilter, werden Pigmente in Form einer Paste oder als pigmentierte Photoresists in geeigneten Bindemitteln (Acrylate, Acrylester, Polyimide, Polyvinylalkohole, Epoxide, Polyester, Melamine, Gelantine, Caseine) auf die jeweiligen LCD-Bauteilen (z.B. TFT-LCD = Thin Film Transistor Liquid Crystal Displays oder z.B. ((S) TN-LCD = (Super) Twisted Nematic-LCD) aufgebracht. Neben einer hohen Thermostabilität ist für eine stabile Paste bzw. einem pigmentierten Photoresist auch eine hohe Pigmentreinheit Voraussetzung. Darüber hinaus können die pigmentierten Color Filter auch durch Ink Jet- Druckverfahren oder andere geeignete Druckverfahren aufgebracht werden.Furthermore, the pigment preparations according to the invention are also used as colorants for . FaLbfjIter, for both additive and subtractive color generation, such as in electro-optical systems such as television screens, LCD (liquid crystal displays), charge coupled devices, plasma displays or electroluminescent displays, which in turn are active (twisted nematic) or passive ( supertwisted nematic) ferroelectric displays or light-emitting diodes, as well as suitable as colorants for electronic inks ("electronic inks" or "e-inks") or "electronic paper"("e-paper"). In the manufacture of color filters, both reflective and transparent color filters, pigments in the form of a paste or as pigmented photoresists in suitable binders (acrylates, acrylic esters, polyimides, polyvinyl alcohols, epoxies, polyesters, melamines, gelatins, caseins) are applied to the respective LCD components (eg TFT-LCD = Thin Film Transistor Liquid Crystal Displays or eg ((S) TN-LCD = (Super) Twisted Nematic-LCD). In addition to high thermal stability, a high pigment purity is also essential for a stable paste or pigmented photoresist The pigmented color filter can also be ink jet Printing processes or other suitable printing processes are applied.
Die rotstichigen Blaufarbtöne der erfindungsgemäßen Pigmentzubereitungen sind ganz besonders gut geeignet für den Color Filter Farbset Rot-Grün-Blau(R,G,B).The reddish blue shades of the pigment preparations according to the invention are very particularly suitable for the color filter color set red-green-blue (R, G, B).
Diese drei Farben liegen als getrennte Farbpunkte nebeneinander vor, und ergeben von hinten durchleuchtet ein Vollfarbbild.These three colors exist as separate color dots next to each other and result in a full color image when illuminated from behind.
Typische Farbmittel für den roten Farbpunkt sind Pyrrolopyrrol-, Chinacridon- undTypical colorants for the red color point are pyrrolopyrrole, quinacridone and
Azopigmente, wie z.B. P.R. 254, P.R. 209, P.R.175 und P.O. 38, einzeln oder gemischt. Für den grünen Farbpunkt weden typischerweiseAzo pigments such as P.R. 254, P.R. 209, P.R. 175 and P.O. 38, individually or mixed. Typically for the green color point
Phthalocyaninfarbmittel eingesetzt, wie z.B. P.G.36 und P.G.7.Phthalocyanine colorants are used, e.g. P.G.36 and P.G.7.
Bei Bedarf können den jeweiligen Farbpunkten noch weitere Farben zumIf necessary, additional colors can be added to the respective color dots
Nuancieren zugemischt werden. Für den Rot- und Grünfarbton wird bevorzugt mitNuances to be mixed. For the red and green color is preferred with
Gelb abgemischt, zum Beispiel mit P.Y. 138,139,150,151,180 und 213.Mixed yellow, for example with P.Y. 138,139,150,151,180 and 213.
Die erfindungsgemäßen Pigmentzubereitungen zeichnen sich aus durch ihre hervorragenden coloristischen und rheologischen Eigenschaften, insbesondere hohe Flockungsstabilität, leichte Dispergierbarkeit, gute Rheologie, hohe Farbstärke, Transparenz und Sättigung.(Chroma). Sie sind in vielen __ Anwendungsmedien leicht und bis zu hohen Feinheiten dispergierbar. Solche Pigmentdispersionen zeigen hervorragende rheologische Eigenschaften selbst bei hoher Pigmentierung der Lack- oder Druckfarbenkonzentrate. Auch andere Eigenschaften, wie beispielsweise Glanz, Überlackierechtheit, Lösemittelechtheit, Alkali- und Säureechtheit, Licht- und Wetterechtheiten und hohe Reinheit des Farbtons, sind sehr gut. Außerdem lassen sich mit den erfindungsgemäßen Pigmentzubereitungen Farbtöne im rotstichig-blauen Bereich erzielen, die beim Einsatz in Farbfiltern gefragt sind. Hier sorgen sie für hohen Kontrast und genügen auch den sonstigen, beim Einsatz in Color Filtern gestellten Anforderungen, wie hohe Temperaturstabilität oder steile und schmale Absorptionsbanden. Sie können mit hoher Reinheit und niedrigen Gehalten an Ionen hergestellt werden.The pigment preparations according to the invention are notable for their outstanding coloristic and rheological properties, in particular high flocculation stability, easy dispersibility, good rheology, high color strength, transparency and saturation (chroma). They are light in many __ application media and dispersible to high fineness. Such pigment dispersions show excellent rheological properties even with high pigmentation of the paint or printing ink concentrates. Other properties, such as gloss, fastness to overcoating, fastness to solvents, fastness to alkali and acid, fastness to light and weather and high purity of the color, are also very good. In addition, the pigment preparations according to the invention can be used to achieve hues in the reddish-blue area which are in demand when used in color filters. Here they ensure high contrast and also meet the other requirements placed on use in color filters, such as high temperature stability or steep and narrow absorption bands. They can be manufactured with high purity and low levels of ions.
Zur Beurteilung der Eigenschaften der Pigmente auf dem Lacksektor in wasserfreien, lösemittelbasierenden Lacksystemen wurden aus der Vielzahl der bekannten Lacke ein Alkyd-Melaminharz-Lack auf Basis eines mittelöligen Alkydharzes und eines butanolveretherten Melaminharzes (AM) ausgewählt.In order to assess the properties of the pigments in the lacquer sector in water-free, solvent-based lacquer systems, an alkyd-melamine resin lacquer based on a medium oil was used from the large number of known lacquers Alkyd resin and a butanol etherified melamine resin (AM) selected.
Die Bestimmung der coloristischen Eigenschaften erfolgte nach DIN 55986. Die Rheologie des Mahlguts nach der Dispergierung (millbase-Rheologie) wurde visuell anhand der folgenden fünfstufigen Skala bewertet.The coloristic properties were determined in accordance with DIN 55986. The rheology of the mill base after dispersion (millbase rheology) was assessed visually on the following five-point scale.
5 dünnflüssig5 thin
4 flüssig4 liquid
3 dickflüssig3 viscous
2 leicht gestockt2 slightly stocked
1 gestockt1 stocked
Die Bestimmung der Viskosität erfolgte nach dem Verdünnen des Mahlguts auf die Pigmentendkonzentration mit dem Viskospatel nach Rossmann, Typ 301 der Firma Erichsen.The viscosity was determined after the millbase had been diluted to the final pigment concentration using the Rossmann viscospatula, type 301 from Erichsen.
In den folgenden Beispielen bedeuten Prozentangaben Gewichtsprozente und Teile Gewichtsteile, sofern nicht anders angegeben.In the following examples, percentages are percentages by weight and parts by weight, unless stated otherwise.
Beispiel 1example 1
450 Teile Natriumchlorid, 75 Teile handelsübliches C.I. Pigment Blue 15:6, 3,75450 parts of sodium chloride, 75 parts of commercially available C.I. Pigment Blue 15: 6, 3.75
Teile Pigmentdispergator der Formel (I) mit n = 1 und 110 ml Diethylenglykol werden 16 Stunden bei 40°C geknetet. Die Knetmasse wird in 2500 Teilen 5 %iger wässriger Salzsäure 2 Stunden bei 40°C gerührt, die Suspension wird abgesaugt, der Presskuchen salzfrei gewaschen und getrocknet.Parts of pigment dispersant of the formula (I) with n = 1 and 110 ml of diethylene glycol are kneaded at 40 ° C. for 16 hours. The modeling clay is stirred in 2500 parts of 5% aqueous hydrochloric acid at 40 ° C. for 2 hours, the suspension is filtered off with suction, the presscake is washed free of salt and dried.
Man erhält 75,8 Teile Pigmentzubereitung.75.8 parts of pigment preparation are obtained.
Im AM-Lack zeigt die Pigmentzubereitung farbstarke und transparenteIn the AM varnish, the pigment preparation shows strong and transparent colors
Lackierungen von rotstichig-blauem Farbton. Die Rheologie des Mahlguts ist sehr gut, die Viskosität des Vollton-Lacks ist niedrig.Paintings of a reddish blue color. The rheology of the mill base is very good, the viscosity of the full-tone lacquer is low.
Vergleichsbeispiel AComparative Example A
80 g eines handelsüblichen Rohpigment C.I. Pigment Blue 15 werden in 800 g80 g of a commercially available crude pigment C.I. Pigment Blue 15 come in 800 g
Schwefelsäure 97 %ig bei Raumtemperatur gelöst. Die Lösung wird auf eine Mischung aus 2500 g Eis und 1500 g Wasser gegossen. Es wird auf 80°C geheizt und 30 Minuten bei dieser Temperatur gerührt. Die Suspension wird abgesaugt und gewaschen. Es wird ein wässrig-feuchter Presskuchen mit 21 ,6 % Feststoffgehalt erhalten.97% sulfuric acid dissolved at room temperature. The solution is to one Poured mixture of 2500 g ice and 1500 g water. The mixture is heated to 80 ° C. and stirred at this temperature for 30 minutes. The suspension is suctioned off and washed. An aqueous, moist press cake having a solids content of 21.6% is obtained.
188 g des Presskuchens werden in 266 g tert.-Amylalkohol, 110 g Wasser und 8,2 g Schwefelsäure 97%ig angerührt. Nach Zugabe von 4,1 g einer 30 %igen wässrigen Lösung von Hexadecyltrimethylammoniumchlorid wird auf 130°C erhitzt und 3 Stunden bei 130°C gerührt. Dann wird der Alkohol durch Wasserdampfdestillation entfernt, die Suspension abgesaugt, der Presskuchen gewaschen und bei 80°C getrocknet. Es werden 35,7 g188 g of the press cake are mixed in 97% strength in 266 g of tert-amyl alcohol, 110 g of water and 8.2 g of sulfuric acid. After adding 4.1 g of a 30% aqueous solution of hexadecyltrimethylammonium chloride, the mixture is heated to 130 ° C. and stirred at 130 ° C. for 3 hours. The alcohol is then removed by steam distillation, the suspension is filtered off with suction, the presscake is washed and dried at 80.degree. There will be 35.7 g
Kupferphthalocyaninpigment erhalten, das in der alpha-Phase vorliegt (bestimmt durch Röntgenspektroskopie).Obtain copper phthalocyanine pigment which is in the alpha phase (determined by X-ray spectroscopy).
Beispiel 2Example 2
Vergleichsbeispiel A wird durchgeführt mit dem einzigen Unterschied, dass vor dem Erhitzen auf 130°C 8,1 g eines wässrig-feuchten Presskuchens eines Pigmentdispergator der Formel (I) mit n = 1 mit Feststoffgehalt 24,5 % zugegeben wird. Es werden 35,8 g Pigmentzubereitung erhalten. Das Kupferphthalocyanin in der Pigmentzubereitung liegt in der alpha-Phase vor.Comparative example A is carried out with the only difference that 8.1 g of an aqueous-moist press cake of a pigment dispersant of the formula (I) with n = 1 and a solids content of 24.5% are added before heating to 130 ° C. 35.8 g of pigment preparation are obtained. The copper phthalocyanine in the pigment preparation is in the alpha phase.
Beispiel 3Example 3
Vergleichsbeispiel A wird durchgeführt mit dem einzigen Unterschied, dass mit den 80 g Rohpigment C.I. Pigment Blue 15 auch 2 g eines Pigmentdispergator der Formel (I) mit n = 1 in der Schwefelsäure gelöst werden. Es werden 37,8 g Pigmentzubereitung erhalten. Das Kupferphthalocyanin in der Pigmentzubereitung liegt in der alpha-Phase vor.Comparative Example A is carried out with the only difference that with the 80 g of crude pigment C.I. Pigment Blue 15 also 2 g of a pigment dispersant of formula (I) with n = 1 can be dissolved in the sulfuric acid. 37.8 g of pigment preparation are obtained. The copper phthalocyanine in the pigment preparation is in the alpha phase.
Beispiel 4: Lackierungen von Beispiel 2 und 3, Vergleich mit Vergleichsbeispiel AExample 4: Coatings from Examples 2 and 3, Comparison with Comparative Example A
Im AM-Lack zeigen die Pigmentzubereitungen der Beispiele 2 und 3 farbstarke und transparente Lackierungen mit sehr guter Überlackierechtheit (Bestimmung der Überlackierechtheit nach DIN 53221). Verglichen mit Vergleichsbeispiel A sind die Lackierungen wesentlich farbstärker und deutlich transparenter, der Glanz ist höher (Glanzmessungen erfolgten an Folienaufgüssen unter einem Winkel von 20° nach DIN 67530), der Farbton ist reiner, die Viskosität der Vollton-Lacke ist niedriger.In the AM lacquer, the pigment preparations of Examples 2 and 3 show strong-colored and transparent lacquers with very good fastness to overcoating (determination of the fastness to overcoating according to DIN 53221). Compared to Comparative Example A, the paints are significantly stronger in color and significantly more transparent, the gloss is higher (gloss measurements were made on foil infusions at an angle of 20 ° according to DIN 67530), the color tone is purer, the viscosity of the full-tone varnishes is lower.
Beispiel 5 80 g eines handelsüblichen Tri-/Tetrachlorphthalocyanin Rohblau werden in 800 g Schwefelsäure 97 %ig bei Raumtemperatur gelöst. Die Lösung wird auf eine Mischung aus 2500 g Eis und 1500 g Wasser gegossen. Es wird auf 80°C geheizt und 30 Minuten bei dieser Temperatur gerührt. Die Suspension wird abgesaugt und gewaschen. Es wird ein wässrig-feuchter Presskuchen mit 23,1 % Feststoffgehalt erhalten. 170,8 g des Presskuchens werden in 262 g tert.-Amylalkohol, 122,8 g Wasser und 7,9 g NaOH 100 %ig angerührt. Nach Zugabe von 4,1 g einer 30 %igen wässrigen Lösung von Hexadecyltrimethylammoniumchlorid und 8,1 g eines wässrig- feuchten Presskuchens eines Pigmentdispergator der Formel (I) mit n = 1 mit Feststoffgehalt 24,5 % wird auf 130°C erhitzt und 3 Stunden bei 130°C gerührt. Dann wird der Alkohol durch Wasserdampfdestillation entfernt, die Suspension abgesaugt, der Presskuchen gewaschen und bei 80°C getrocknet. Es werden 39,5 g Pigmentzubereitung erhalten.Example 5 80 g of a commercial tri / tetrachlorophthalocyanine raw blue are dissolved in 800 g of 97% strength sulfuric acid at room temperature. The solution is poured onto a mixture of 2500 g of ice and 1500 g of water. The mixture is heated to 80 ° C. and stirred at this temperature for 30 minutes. The suspension is suctioned off and washed. An aqueous, moist press cake with a solids content of 23.1% is obtained. 170.8 g of the press cake are stirred in 262 g of tert-amyl alcohol, 122.8 g of water and 7.9 g of 100% NaOH. After adding 4.1 g of a 30% aqueous solution of hexadecyltrimethylammonium chloride and 8.1 g of an aqueous-moist press cake of a pigment dispersant of the formula (I) with n = 1 with a solids content of 24.5%, the mixture is heated to 130 ° C. and 3 Stirred at 130 ° C for hours. The alcohol is then removed by steam distillation, the suspension is filtered off with suction, the presscake is washed and dried at 80.degree. 39.5 g of pigment preparation are obtained.
Beispiel 6Example 6
80 g eines handelsüblichen Tri-/Tetrachlorphthalocyanin Rohblau und 2 g eines80 g of a commercial tri / tetrachlorophthalocyanine raw blue and 2 g of one
Pigmentdispergator der Formel (I) mit n = 1 werden in 800 g SchwefelsäurePigment dispersant of formula (I) with n = 1 are in 800 g of sulfuric acid
97 %ig bei Raumtemperatur gelöst. Die Lösung wird auf eine Mischung aus97% dissolved at room temperature. The solution is made up of a mixture
2500 g Eis und 1500 g Wasser gegossen. Es wird auf 80°C geheizt undPoured 2500 g of ice and 1500 g of water. It is heated to 80 ° C and
30 Minuten bei dieser Temperatur gerührt. Die Suspension wird abgesaugt und gewaschen. Es wird ein wässrig-feuchter Presskuchen mit 23,1 % Feststoffgehalt erhalten.Stirred for 30 minutes at this temperature. The suspension is suctioned off and washed. An aqueous, moist press cake with a solids content of 23.1% is obtained.
170,8 g des Presskuchens werden in 262 g tert.-Amylalkohol, 122,8 g Wasser und170.8 g of the press cake are in 262 g of tert-amyl alcohol, 122.8 g of water and
7,9 g NaOH 100%ig angerührt. Nach Zugabe von 4,1 g einer 30 %igen wässrigen7.9 g of 100% NaOH. After adding 4.1 g of a 30% aqueous solution
Lösung von Hexadecyltrimethylammoniumchlorid wird auf 130°C erhitzt undSolution of hexadecyltrimethylammonium chloride is heated to 130 ° C and
3 Stunden bei 130°C gerührt. Dann wird der Alkohol durchStirred at 130 ° C for 3 hours. Then the alcohol goes through
Wasserdampfdestillation entfernt, die Suspension abgesaugt, der Presskuchen gewaschen und bei 80°C getrocknet. Es werden 37,4 g Pigmentzubereitung erhalten.Steam distillation removed, the suspension suctioned off, the press cake washed and dried at 80 ° C. 37.4 g of pigment preparation are obtained.
Beispiel 7: Lackierungen von Beispiel 5 und 6 In einem High-Solid-Acrylharzeinbrennlack auf Basis einer nichtwässrigen Dispersion (HS) zeigen die Pigmentzubereitungen der Beispiele 5 und 6 transparente Vollton-Lackierungen, der Glanz ist hoch. Die Metallic-Lackierungen sind farbtief und brillant und zeigen einen Winkelabhängigkeit des Farbtons (Farbflop). Die Viskosität der Vollton-Lacke ist niedrig.Example 7: Coatings from Examples 5 and 6 In a high-solid acrylic stoving enamel based on a non-aqueous dispersion (HS), the pigment preparations from Examples 5 and 6 show transparent full-tone coatings, the gloss is high. The metallic paintwork is deep in color and brilliant and shows an angle dependence of the color (color flop). The viscosity of the full-tone paints is low.
Beispiel 8 30 g eines handelsüblichen C.I. Pigment Blue 15:1 wurden mit 1 ,5 g eines Pigmentdispergator der Formel (I) mit n = 1 mechanisch gemischt. Im AM-Lack werden farbstarke und transparente Lackierungen mit hohem Glanz erhalten, die Viskosität des Vollton-Lacks ist niedrig. In einem Polyesterlack (PE) auf Basis von Celluloseacetobutyrat und eines Melaminharzes und im HS-Lack zeigt die Pigmentzubereitung ebenfalls transparente und farbstarke Lackierungen. Die Metallic-Lackierungen sind farbtief und brillant. Die Viskosität der Vollton-Lacke ist niedrig. Der Glanz im HS-Lack ist hoch.Example 8 30 g of a commercially available C.I. Pigment Blue 15: 1 was mixed mechanically with 1.5 g of a pigment dispersant of the formula (I) with n = 1. Strong and transparent coatings with a high gloss are obtained in the AM lacquer; the viscosity of the full-tone lacquer is low. In a polyester lacquer (PE) based on cellulose acetobutyrate and a melamine resin and in the HS lacquer, the pigment preparation also shows transparent and strong-colored lacquers. The metallic paintwork is deep in color and brilliant. The viscosity of the full-tone paints is low. The gloss in the HS varnish is high.
Auch in einem wässrigen Lack auf Polyurethanbasis (PUR) werden farbstarke, transparente Lackierungen erhalten mit farbtiefen und brillanten Metallic- Lackierungen.Even in an aqueous polyurethane-based (PUR) varnish, strong, transparent varnishes are obtained with deep, brilliant metallic varnishes.
Zur Beurteilung der Eigenschaften der Pigmentzubereitung auf dem Druckfarbengebiet wurden aus der Vielzahl der bekannten Drucksysteme ein Nitrocellulose-Alkohol-Tiefdrucksystem (NC-A), ein wässriges Flexodrucksystem auf Acrylharzbasis (FD) und ein Offsetdrucksystem auf Alkydharzbasis (OD) gewählt.To assess the properties of the pigment preparation in the printing ink field, a nitrocellulose-alcohol gravure printing system (NC-A), an aqueous flexographic printing system based on acrylic resin (FD) and an offset printing system based on alkyd resin (OD) were selected from the large number of known printing systems.
Mit der Pigmentzubereitung werden im NC-A-, im FD-und im OD-Drucksystem farbstarke und transparente Drucke erhalten, die Viskosität der Druckfarben ist niedrig. Beispiel 9 30 g eines handelsüblichen C.I. Pigment Blue 15:6 wurden mit 3 g eines Pigmentdispergator der Formel (I) mit n = 1 mechanisch gemischt.With the pigment preparation, strong, transparent prints are obtained in the NC-A, FD and OD printing systems, and the viscosity of the printing inks is low. Example 9 30 g of a commercially available CI Pigment Blue 15: 6 were mixed mechanically with 3 g of a pigment dispersant of the formula (I) with n = 1.
Beispiel 10 30 g eines handelsüblichen C.I. Pigment Blue 15:6 wurden mit 1,5 g eines Pigmentdispergator der Formel (I) mit n = 1 mechanisch gemischt.Example 10 30 g of a commercially available C.I. Pigment Blue 15: 6 were mixed mechanically with 1.5 g of a pigment dispersant of the formula (I) with n = 1.
Beispiel 11 30 g eines handelsüblichen C.I. Pigment Blue 15:6 wurden mit 0,75 g eines Pigmentdispergator der Formel (I) mit n = 1 mechanisch gemischt.Example 11 30 g of a commercially available C.I. Pigment Blue 15: 6 were mixed mechanically with 0.75 g of a pigment dispersant of the formula (I) with n = 1.
Beispiel 12: Lackierungen von Beispiel 9, 10 und 11 Im HS- und PUR-Lack werden farbstarke und transparente Lackierungen erhalten, die Metallic-Lackierungen sind farbtief und brillant, die Viskosität der HS-Vollton- Lacke ist niedrig, der Glanz der HS-Lackierungen ist hoch.Example 12: Coatings from Examples 9, 10 and 11 Strong and transparent coatings are obtained in the HS and PUR coatings, the metallic coatings are deep and brilliant, the viscosity of the HS full-tone coatings is low, the gloss of the HS Paintwork is high.
Beispi J_3: rucke_y n Beispiel _10Example J_3: jerke_y n example _10
Mit der Pigmentzubereitung aus Beispiel 10 werden im NC-A-, im FD- und im OD- Drucksystem farbstarke und transparente Drucke mit reinem Farbton erhalten, die Viskosität der Druckfarben ist niedrig. Im OD-Drucksystem wird gutes Anbrennverhalten beobachtet.With the pigment preparation from Example 10, strong and transparent prints with a pure color tone are obtained in the NC-A, in the FD and in the OD printing system; the viscosity of the printing inks is low. Good burning behavior is observed in the OD printing system.
Beispiel 14Example 14
30 g eines handelsüblichen C.I. Pigment Blue 15:3 wurden mit 1,5 g eines30 g of a commercially available C.I. Pigment Blue 15: 3 was mixed with 1.5 g of a
Pigmentdispergator der Formel (I) mit n = 1 mechanisch gemischt.Pigment dispersant of formula (I) mechanically mixed with n = 1.
Mit der Pigmentzubereitung werden im NC-A-, im FD- und im OD-Drucksystem farbstarke und transparente Drucke mit reinem Farbton erhalten, die Viskosität derWith the pigment preparation, strong and transparent prints with a pure color tone are obtained in the NC-A, FD and OD printing systems, the viscosity of the
Druckfarben ist niedrig. Im OD-Drucksystem wird gutes Anbrennverhalten beobachtet. Inks are low. Good burning behavior is observed in the OD printing system.

Claims

Patentansprüche:claims:
1) Pigmentzubereitung, gekennzeichnet durch einen Gehalt an mindestens einem Kupferphthalocyaninpigment aus der Gruppe C.I. Pigment Blue 15, 15:0, 15:1 , 15:2, 15:3, 15:4 und 15:6, sowie mindestens einem Pigmentdispergator der Formel (I),1) Pigment preparation, characterized by a content of at least one copper phthalocyanine pigment from the group C.I. Pigment Blue 15, 15: 0, 15: 1, 15: 2, 15: 3, 15: 4 and 15: 6, and at least one pigment dispersant of the formula (I),
worin n eine Zahl 1 , 2, 3 oder 4 bedeutet.where n is a number 1, 2, 3 or 4.
2) Pigmentzubereitung nach Anspruch 1 , dadurch gekennzeichnet, dass das Gewichtsverhältnis von Kupferphthalocyaninpigment zu Pigmentdispergator der Formel (I) zwischen (99,9 zu 0,1) und (75 zu 25) liegt.2) Pigment preparation according to claim 1, characterized in that the weight ratio of copper phthalocyanine pigment to pigment dispersant of the formula (I) is between (99.9 to 0.1) and (75 to 25).
3) Pigmentzubereitung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Gewichtsverhältnis von Kupferphthalocyaninpigment zu Pigmentdispergator der Formel (I) zwischen (99 zu 1) und (80 zu 20) liegt.3) Pigment preparation according to claim 1 or 2, characterized in that the weight ratio of copper phthalocyanine pigment to pigment dispersant of the formula (I) is between (99 to 1) and (80 to 20).
4) Pigmentzubereitung nach mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Gewichtsverhältnis von Kupferphthalocyaninpigment zu Pigmentdispergator der Formel (I) zwischen (97 zu 2,5) und (90 zu 10) liegt.4) Pigment preparation according to at least one of claims 1 to 3, characterized in that the weight ratio of copper phthalocyanine pigment to pigment dispersant of the formula (I) is between (97 to 2.5) and (90 to 10).
5) Pigmentzubereitung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass n eine Zahl 1 , 2 oder 3 ist. 6) Pigmentzubereitung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass n eine Zahl 1 oder 2 ist.5) pigment preparation according to one or more of claims 1 to 4, characterized in that n is a number 1, 2 or 3. 6) pigment preparation according to one or more of claims 1 to 5, characterized in that n is a number 1 or 2.
7) Pigmentzubereitung nach mindestens einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass Hilfsmittel oder Zusatzstoffe aus der Gruppe der Tenside, nichtpigmentären und pigmentären Dispergiermittel, Füllstoffe, Stellmittel, Harze, Wachse, Entschäumer, Antistaubmittel, Extender, Antistatika, Farbmittel zum Nuancieren, Konservierungsmittel, Trocknungsverzögerungsmittel, Additive zur Steuerung der Rheologie, Netzmittel, Antioxidantien, UV-Absorber und Lichtstabilisatoren enthalten sind.7) pigment preparation according to at least one of claims 1 to 6, characterized in that auxiliaries or additives from the group of surfactants, non-pigmentary and pigmentary dispersants, fillers, adjusting agents, resins, waxes, defoamers, antidust agents, extenders, antistatic agents, colorants for shading, Preservatives, drying retardants, additives for controlling the rheology, wetting agents, antioxidants, UV absorbers and light stabilizers are included.
8) Verfahren zur Herstellung einer Pigmentzubereitung nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass man das oder die Kupferphthalocyaninpigment(e) und den Pigmentdispergator der Formel (I) und gegebenenfalls die Hilfsmittel oder Zusatzstoffe miteinander mischt.8) Process for the preparation of a pigment preparation according to one or more of claims 1 to 7, characterized in that the copper phthalocyanine pigment (s) and the pigment dispersant of the formula (I) and optionally the auxiliaries or additives are mixed with one another.
9) Verwendung einer Pigmentzubereitung nach mindestens einem der Ansprüche 1 bis 8 zum Pigmentieren von hochmolekularen organischen Materialien natürlicher oder synthetischer Herkunft, insbesondere von Kunststoffen, Harzen, Lacken, Anstrichfarben, elektrophotographischen Tonern und Entwicklern, Elektretmaterialien, Farbfiltern sowie von Tinten, Druckfarben und Saatgut.9) Use of a pigment preparation according to at least one of claims 1 to 8 for pigmenting high molecular weight organic materials of natural or synthetic origin, in particular of plastics, resins, lacquers, paints, electrophotographic toners and developers, electret materials, color filters and of inks, printing inks and seeds.
10) Hochmolekulares organisches Material, enthaltend eine färberisch wirksame Menge einer Pigmentzubereitung nach einem oder mehreren der Ansprüche 1 bis 7. 10) high molecular weight organic material containing a dye-effective amount of a pigment preparation according to one or more of claims 1 to 7.
EP05715434A 2004-03-03 2005-02-22 Pigment preparations based on phthalocyanine pigments Withdrawn EP1723202A1 (en)

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DE102004010284A DE102004010284A1 (en) 2004-03-03 2004-03-03 Pigment preparations based on phthalocyanine pigment
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BRPI0508367A (en) 2007-07-31
KR101129986B1 (en) 2012-03-26
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US7387670B2 (en) 2008-06-17
CA2558502A1 (en) 2005-09-15

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