WO2004113454A1 - Verfahren zur behandlung von pigmenten in partikulärer form - Google Patents
Verfahren zur behandlung von pigmenten in partikulärer form Download PDFInfo
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- WO2004113454A1 WO2004113454A1 PCT/EP2004/006298 EP2004006298W WO2004113454A1 WO 2004113454 A1 WO2004113454 A1 WO 2004113454A1 EP 2004006298 W EP2004006298 W EP 2004006298W WO 2004113454 A1 WO2004113454 A1 WO 2004113454A1
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- particulate form
- pigment
- pigments
- mixture
- treated
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- DNTMQTKDNSEIFO-UHFFFAOYSA-N CC(C(NCO)=O)=C Chemical compound CC(C(NCO)=O)=C DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 description 1
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
- C09B67/0001—Post-treatment of organic pigments or dyes
- C09B67/0004—Coated particulate pigments or dyes
Definitions
- the present invention relates to a process for the treatment of pigments in particulate form, comprising the following steps: a) mixing pigment in particulate form with at least one nonionic surface-active substance, b) dispersing the mixture of pigment in particulate form and non-ionic thus obtainable surfactant in aqueous medium, c) polymerizing at least one first monomer or copolymerizing a first mixture of comonomers in the presence of a dispersion according to b), water-insoluble polymer or copolymer being formed on the surface of the pigments in particulate form, d) adding at least a second Monomer or a second mixture of comonomers and polymerization or copolymerization.
- the invention further relates to the use of the pigments treated according to the invention in particulate form for the production of colorant preparations, in particular for the production of inks for the ink jet process, and to a process for printing flat or three-dimensionally designed substrates, in particular textile substrates, in ink -Jet process in which the inks according to the invention are used.
- the present invention relates to substrates printed with the inks according to the invention.
- Colored substrates should have a high brilliance of colors, the coloring should be permanent, i.e. have high fastness properties, such as fastness to rubbing.
- ink jet printing processes such as thermal ink jet, piezo ink jet, continuous ink jet, valve jet, transfer printing process
- ink jet printing processes such as thermal ink jet, piezo ink jet, continuous ink jet, valve jet, transfer printing process
- the requirements regarding the storage stability of these inks also mean that the dispersed colorant particles do not settle.
- the inks must be stable against the addition of conductive salts and none if the ion content is increased Show tendency to flocculate.
- the prints obtained must meet the color requirements, ie show high brilliance and depth of color, and have good fastness properties, for example rub fastness, light fastness, water fastness and wet rub fastness, wash fastness and chemical cleaning resistance.
- inks it is necessary for inks to dry quickly on the substrate, so that images or lettering to be printed do not run and, for example, ink droplets of different colors do not mix.
- ink droplets of different colors do not mix.
- the brilliance of coloration can still be lacking. This applies, for example, to the application of binder-containing colorant preparations if one wishes to generate trichromatic substances. A migration of pigments is often observed after application, and razor-sharp images are either not sufficiently durable in this way or cannot be created permanently.
- the haptics of printed substrates can be improved in some cases, since it is desired that printed substrates and in particular textile substrates have a pleasantly soft grip and should not become stiff due to the printing.
- No. 3,133,893 discloses the coating of pigments which have been treated with a surface-active agent with polyacrylonitrile prepared in a polymerization step and synthesized in the presence of the pigment.
- the pigments coated in this way can be incorporated into fibers.
- the haptic properties, such as the handle are often unsatisfactory for modern requirements.
- US 4,608,401 discloses a method for encapsulating pigments for latex paints, in which pigment particles with water-insoluble monomers and a detergent are dispersed in water under conditions in which no shear forces act and then subjected to the conditions of emulsion polymerization.
- the haptic properties such as the handle, are often unsatisfactory for modern requirements.
- No. 4,680,200 discloses a process for the encapsulation of non-pretreated pigments, in which pigment particles with styrene and the oligomer Polywet KX-3 from Uniroyal are dispersed in water and then subjected to the conditions of an emulsion polymerization.
- US 3,544,500 discloses a process for the production of pigments coated with special polymers, which are produced by physically adsorbing water-soluble polymers on the polymer and then introducing an unsolvated anchor component.
- water-soluble polymers for the coating of pigments for inks for the ink-jet process is not advantageous because the coating is removed again when the ink is stored for a long time.
- printed textiles, in particular are not sufficiently resistant to wet and sweat, and the fastness to washing is also inadequate in many cases.
- EP-A 1 245 653 discloses a process for the preparation of inks for the ink jet process, according to which pigment particles are mixed with water-soluble monomers such as, for example, acrylic acid and, if appropriate, further comonomers and then subjected to emulsion polymerization.
- water-soluble monomers such as, for example, acrylic acid and, if appropriate, further comonomers and then subjected to emulsion polymerization.
- the waterfastness and in particular the washfastness of substrates printed with the disclosed inks is inadequate in many cases.
- the present invention relates to the use of the pigments treated according to the invention in particulate form for the production of colorant preparations, in particular for preparations for coloring leather. Furthermore, the present invention relates to a process for coloring leather and colored leather, produced using the pigments treated according to the invention in particulate form. Finally, the present invention relates to shoes made from colored leather according to the invention.
- Leather is usually coated in several layers during finishing. A three-layer coating is particularly common, the first coating being a so-called primer, which contains, for example, pigments, binders and auxiliaries to achieve adhesion of the entire finish. A so-called top layer is used as the second coating, which is usually set a little harder than the first layer. The third layer is a finish that has a decisive influence on the final appearance and the grip. More common coating techniques such as spraying, painting, casting, printing and laminating serve as application methods for all layers.
- the object was therefore to provide a process for the treatment of pigments in particulate form which avoids the disadvantages known from the prior art.
- Another task was to provide treated pigments in particulate form.
- the task was to provide applications for treated pigments in particulate form.
- the process according to the invention is based on pigments in particulate form.
- pigments are to be understood as meaning practically insoluble, dispersed, finely divided, organic or inorganic colorants as defined in DIN 55944.
- the process according to the invention preferably starts from organic pigments.
- Organic pigments selected by way of example are:
- Monoazo Pigments C.I. Pigment brown 25; C.I. Pigment Orange 5, 13, 36 and 67; C.I. Pigment Red 1, 2, 3, 5, 8, 9, 12, 17, 22, 23, 31, 48: 1, 48: 2, 48: 3, 48: 4, 49, 49: 1, 52: 1, 52: 2, 53, 53: 1, 53: 3, 57: 1, 63, 112, 146, 170, 184, 210, 245 and 251; C.I. Pigment Yellow 1, 3, 73, 74, 65, 97, 151 and 183;
- Anthanthrone pigments Cl Pigment Red 168 (Cl Vat Orange 3); Anthraquinone pigments: Cl Pigment Yellow 147 and 177; Cl pigment
- C.I. Pigment Blue 60 C.I. Vat Blue 4
- 64 C.I. Vat Blue 6
- Isoindoline pigments C.I. Pigment orange 69; C.I. Pigment Red 260; C.I. Pigment Yellow 139 and 185; - Isoindolinone pigments: C.I. Pigment Orange 61; C.I. Pigment Red 257 and 260; C.I. Pigment Yellow 109, 110, 173 and 185;
- C.I. Pigment Orange 43 C.I. Vat Orange 7
- C.I. Pigment Red 194 C.I. Vat Red 15
- C.I. Pigment Orange 43 C.I. Vat Orange 7
- C.I. Pigment Red 194 C.I. Vat Red 15
- Triaryl carbonium pigments C.I. Pigment Blue 1, 61 and 62; C.I. Pigment green 1; C.I. Pigment Red 81, 81: 1 and 169; C.I. Pigment violet 1, 2, 3 and 27; C.I. Pigment Black 1 (aniline black);
- C.I. Pigment Yellow 138 C.I. Pigment Red 122, C.I. Pigment Violet 19, C.I. Pigment Blue 15: 3 and 15: 4, C.I. Pigment Black 7, C.I. Pigment Orange 5, 38 and 43 and C.I. Pigment Green 7.
- mixtures of two or more different pigments can also be used, preferably at least one pigment being organic.
- the starting point is pigments that are in particulate form, i.e. in the form of particles. So-called raw pigments are usually used, which are untreated pigments as they occur after pigment synthesis.
- the particles can have regular or irregular shape, for example the particles can be in spherical or approximately spherical shape or in needle shape.
- the particles are in spherical or approximately spherical form, i.e. the ratio of longest diameter to smallest diameter is in the range from 1.0 to 2.0, preferably to 1.5.
- the pigment or pigments in particulate form are mixed in step a) with at least one nonionic surface-active substance.
- nonionic surface-active substances are, for example, ethoxylated mono-, di- and tri-alkyiphenols (degree of ethoxylation: 3 to 50, alkyl radical: C 3 -C 2 ) and ethoxylated fatty alcohols (EO degree: 3 to 80; alkyl radical: C 8 -C 36 ).
- ethoxylated mono-, di- and tri-alkyiphenols degree of ethoxylation: 3 to 50, alkyl radical: C 3 -C 2
- EO degree 3 to 80; alkyl radical: C 8 -C 36
- Lutensol ® brands from BASF AG
- Triton ® brands from Union Carbide.
- Ethoxylated linear fatty alcohols of the general formula III are particularly preferred
- x are integers in the range from 10 to 24, preferably in the range from 12 to 20.
- the variable y preferably stands for integers in the range from 5 to 50, particularly preferably 8 to 40.
- Ethoxylated linear fatty alcohols of the general formula III are usually present as a mixture of different ethoxylated fatty alcohols with different degrees of ethoxylation.
- the variable y stands for the mean (number average).
- the mixing of pigment in particulate form and at least one nonionic surface-active substance is carried out in equipment suitable for mixing, preferably in mills such as, for example, ball mills or stirred ball mills.
- the ball mill Drais Superflow DCP SF 12 is particularly suitable.
- Vz hour to 48 hours have proven to be a suitable time for the mixing, although a longer time is also conceivable.
- a mixing time of 5 to 24 hours is preferred.
- Pressure and temperature conditions during mixing are generally not critical, for example normal pressure has proven to be suitable. Temperatures in the range from 10 ° C. to 100 ° C. have proven to be suitable, for example.
- the quantitative ratio of pigment to non-ionic surface-active substance can be chosen within a wide range, for example in the range from 10: 1 to 2: 1.
- Step a) Water can be added while step a) is being carried out.
- Conventional non-ionic grinding aids can also be added.
- the average diameter of the pigments after step a) is usually in the range from 20 nm to 1.5 ⁇ m, preferably in the range from 50 to 200 nm, particularly preferably 100 nm.
- step b) the mixture of pigment in particulate form and nonionic surface-active substance obtainable after step a) is dispersed in an aqueous medium.
- aqueous media are understood to mean those liquid media which contain water as an important component, for example at least 40% by weight, preferably at least 55% by weight.
- step b) the weight ratio of mixture of pigment particles and nonionic surface-active substance to aqueous medium is generally in the range from 1: 1.5 to 1:15, preferably 1: 2.5 to 1: 9.
- Pressure and temperature conditions for step b) are generally not critical, for example temperatures in the range from 5 to 100 ° C. are suitable, preferably 20 to 85 ° C. and pressures in the range from normal pressure to 10 bar.
- Dispersion after step b) gives a dispersion.
- step c) at least one first monomer is polymerized or a first mixture of comonomer is copolymerized in the presence of a dispersion obtainable according to b), water-insoluble polymer or copolymer being formed on the surface of the pigment particles.
- step c) at least one monomer or at least a mixture of comonomers is added to a dispersion obtainable according to b).
- the addition can take place, for example, in one portion, in several portions or also continuously. If you want to copolymerize at least different monomers with one another, you can first add one comonomer and then the second and optionally further comonomer. In another embodiment, all comonomers are added in one portion.
- Monomer or comonomers can be added in bulk or in aqueous dispersion.
- Monomers or comonomers which are poorly soluble in water are chosen as monomers or comonomers in step c).
- Monomers or comonomers which are poorly soluble in water are understood to mean those monomers or comonomers whose solubility in water at 50 ° C. is 1 ⁇ 10 ⁇ 1 mol / l or less.
- Preferred examples of monomers or comonomers in step c) are vinyl aromatic compounds and poorly water-soluble ⁇ , ⁇ -unsaturated carboxylic acid derivatives. At least one compound of the general formula IV is preferably selected as the vinyl aromatic compound,
- a ⁇ , ⁇ -unsaturated carboxylic acid derivative which is poorly soluble in water is preferably a compound of the general formula I
- R selected from unbranched or branched C C ⁇ o-alkyl, such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl, sec-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl; particularly preferably CC 4 alkyl such as
- R 2 is selected from unbranched or branched CC 0 alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, isopentyl , sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl , n-decyl; particularly preferably CrC 4 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and tert-butyl; or very particularly
- R 3 selected from unbranched or branched C 4 -C ⁇ 0 alkyl, such as n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl, sec-pentyl, neo-pentyl , 1,2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec-hexyl, n-heptyl, n-octyl, 2-ethyl-hexyl, n-nonyl, n-decyl; especially n-butyl and 2-ethylhexyl.
- the ratio of pigment to amount of monomer or comonomer in step c) is in the range from 3: 1 to 1: 2, preferably in the range 2: 1 to 1: 1.5.
- step c Mixtures of the abovementioned monomers can be used in step c).
- monomers for example, mixtures of styrene and n-butyl acrylic acid are very suitable, the mixing ratio being arbitrary.
- Polymerization is preferably carried out under the conditions of an emulsion polymerization. So-called “starved conditions” are very particularly preferred, ie little or preferably no wetting agent is added. In this way, no measurable proportions of stabilized droplets of the first monomer or first mixture of comonomers are obtained, and the proportion of wetting agent is used Wetting the pigment surface and for transporting the first monomer or first mixture of comonomers through the continuous aqueous phase.
- Suitable wetting agents are, for example, organic sulfur compounds, for example alkyl sulfates, alkyl sulfonates, alkyl aryl sulfonates, alkyl ether sulfates, alkyl aryl ether sulfates, sulfosuccinates such as sulfosuccinic acid semiesters and sulfosuccinic acid diesters; organic phosphorus compounds such as alkyl ether phosphates are suitable.
- At least one initiator can be a peroxide.
- suitable peroxides are alkali metal peroxodisulfates, e.g. Sodium peroxodisulfate, ammonium peroxodisulfate, hydrogen peroxide, organic peroxides such as diacetyl peroxide, di-tert.-butyl peroxide, diamyl peroxide, dioctanoyl peroxide, didecanoyl peroxide, dilauroyl peroxide, dibenzoyl peroxide, bis- (o-toloyl) peroxide, succinate peroxide, succinate , tert.-butyl perisobutyrate, tert.-butyl perpivalate, tert.-butyl peroctoate, tert.-butyl perneodecanoate, tert.-butyl perbenzoate,
- Redox initiators are also suitable, for example from peroxides and oxidizable sulfur compounds.
- Systems such as ascorbic acid / H 2 O 2 are also particularly preferred.
- the pressure conditions are generally not critical, for example pressures in the range from normal pressure to 10 bar are suitable.
- 1 to 30 minutes have proven to be suitable as the time for step c), preferably 2 to 10 minutes and particularly preferably 3 to 5 minutes.
- additives that are common in emulsion polymerization, for example glycols, polyethylene glycols, protective colloids, buffer / pH regulators, molecular weight regulators and chain transfer inhibitors, can be added to the reaction mixture.
- a polymer-copolymer-coated pigment is obtained in particulate form, which is obtained in the form of isolated particles. No measurable or only extremely small proportions of agglomerates are observed, for example less than 2% by weight, preferably less than 0.2% by weight.
- the polymer or copolymer formed in particulate form on the surface of the pigment in step c) is water-insoluble.
- the dispersed pigment particles obtainable according to c) can be isolated by cleaning operations, for example filtering, decanting, washing and redispersed to carry out step d) of the process according to the invention.
- the dispersed pigment particles coated with polymer or copolymer obtainable according to c) are preferably processed further in situ.
- step d) of the process according to the invention at least a second monomer or a second mixture of comonomers is added to the dispersion from step c) or the worked up and redispersed coated pigments and polymerized or copolymerized.
- this is also referred to as a second mixture of comonomers in step d) if a monomer has been used in step c) and a mixture of two comonomers is added in step d).
- a second monomer in step d) if a mixture of comonomers has been used in step c) and a monomer is added in step d).
- step c) If it is desired to add a second mixture of comonomers, then at least one comonomer which is different from the monomer or the comonomers from step c) is added.
- a vinylaromatic compound is used as the monomer in step c) and at least one monomer or comonomer which can swell polymer or copolymer from step c) in step d). Under swelling it is understood that under standard conditions at least
- R 4 selected from unbranched or branched d-Cio-alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso- Pentyl, sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n- Nonyl, n-decyl; particularly preferably CC alkyl such as
- R 5 is selected from unbranched or branched CrC 10 alkyl, such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl , sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl , n-decyl; particularly preferably CC 4 alkyl such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl and
- R 6 is selected from unbranched or branched d-Cio-alkyl, such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl , iso-pentyl, sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n -Nonyl, n-decyl; particularly preferably -CC 4 alkyl such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl and tert-buty
- step d If it is desired to add a mixture of comonomers in step d), it is sufficient if at least one comonomer is different from the monomer or comonomer from step c). For example, it is possible to use styrene in step c) and a mixture of methyl acrylate and styrene in step d).
- the weight ratio of second monomer or second mixture of comonomers from step d) to pigment from step a) is in the range from 0.7: 1 to 10: 1, preferably 1.5: 1 to 5: 1, particularly preferably 2: 1 to 4: 1.
- the amount of monomers or comonomers from steps c) and d) of the process according to the invention is selected such that the ratio of polymer or copolymer to pigment is in the range from 1: 1 to 5: 1, preferably in the range from 2: 1 to 4: 1 lies.
- step d) polymerization or copolymerization is preferably carried out under the conditions of an emulsion polymerization.
- at least one initiator is used, it being possible for the initiator (s) to be chosen from those mentioned above.
- emulsifier which can be anionic, cationic or nonionic.
- nonionic emulsifiers are, for example, ethoxylated mono-, di- and tri-alkylphenols (degree of ethoxylation: 3 to 50, alkyl radical: C 4 -C 12 ) and ethoxylated fatty alcohols (degree of ethoxylation: 3 to 80; alkyl radical: C 8 -C 36 ).
- Typical anionic emulsifiers are, for example, alkali metal and ammonium salts of alkyl sulfates (alkyl radical: C 8 to C 12 ), of sulfuric acid semiesters of ethoxylated alkanols (degree of ethoxylation: 4 to 30, alkyl radical: d 2 -C ⁇ 8 ) and ethoxylated alkyl phenols (degree of ethoxylation: 3 to 50, alkyl radical: C 4 -C 12 ), of alkyl sulfonic acids (alkyl radical: C 12 -C 18 ) and of alkylarylsulfonic acids (alkyl radical: C 8 -C ⁇ 8 ) and of sulfosuccinates such as sulfosuccinic acid mono- and diesters.
- alkyl sulfates alkyl radical: C 8 to C 12
- sulfuric acid semiesters of ethoxylated alkanols degree of
- Suitable cationic emulsifiers are usually a C 6 -C 18 alkyl, aralkyl or heterocyclyl-containing primary, secondary, tertiary or quaternary ammonium salts, alkanolammonium salts, pyridinium salts, imidazolinium salts, oxa zoliniumsalze, morpholinium, thiazolinium, and salts of amine oxides , Quinolinium salts, isoquinolinium salts, tropylium salts, sulfonium salts and phosphonium salts.
- Examples include dodecylammonium acetate or the corresponding hydrochloride, the chlorides or acetates of the various 2- (N, N, N-T ⁇ -methylammonium) ethyl paraffinic acid esters, / V-cetylpyridinium chloride,-/ -laurylpyridinium sulfate and ⁇ / -cetyl- ⁇ /, W, ⁇ / -trimethylammonium bromide, ⁇ / -dodecyl- ⁇ /, ⁇ /, ⁇ / -trimethylammoniumbromid, / V, N-distearyl- / V, ⁇ / -dimethylammonium chloride and the Gemini surfactant / V, / V- (lauryl) ethylendiamindibromid.
- the amount of the emulsifier is selected such that the mass ratio between the second monomer or second mixture of comonomers on the one hand and the emulsifier on the other hand is greater than 1, preferably greater than 10 and particularly preferably greater than 20.
- step d) The order of addition of the reactants from step d) is not critical per se.
- the initiator is added when a milky-looking emulsion has been produced by, for example, stirring.
- the selected temperature depends on the decay characteristics of the initiator used.
- the pressure conditions are generally not critical, for example pressures in the range from normal pressure to 10 bar are suitable.
- a period of time in the range from 30 minutes to 12 hours can be selected as the time for the polymerization or copolymerization in step d), 2 to 3 hours being preferred.
- step d) up to 10% by weight, preferably 2 to 5% by weight, based on monomers or comonomers from step d), of at least one compound of the general formula V a to V b
- R 10 selected from unbranched or branched dC 10 alkyl, such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec.-butyl, tert .-Butyl, n-pentyl, iso-pentyl, sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n-nonyl, n-decyl; particularly preferably CC 4 alkyl such as
- R 11 selected from unbranched or branched d-C ⁇ 0 alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, iso -Pentyl, sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n -Nonyl, n-decyl; particularly preferably dC 4 alkyl such as
- R 12 is selected from unbranched or branched dC 10 alkyl, such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, n-pentyl, iso-pentyl, sec.-pentyl, neo-pentyl, 1, 2-dimethylpropyl, iso-amyl, n-hexyl, iso-hexyl, sec.-hexyl, n-heptyl, n-octyl, 2-ethylhexyl, n- Nonyl, n-decyl; particularly preferably CC 4 alky
- Groups with tertiary amino groups for example NH (CH 2 ) b -N (CH 3 ) 2 , where b is an integer in the range from 2 to 6,
- enolizable groups with 1 to 20 carbon atoms, for example acetoacetyl
- R 3 is selected from unbranched or branched CrCio-alkyl, such as methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, n-pentyl, iso -
- R 10 is very particularly preferably selected from hydrogen and methyl and R 11 and R 12 are each hydrogen.
- step d) in each case 1 to 5% by weight of (meth) acrylonitrile, (meth) acrylic amide, ureido (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, acrylamide propanesulfonic acid, branched or unbranched, sodium salt of vinylsulfonic acid.
- the second mixture of comonomers is selected such that it is in the range from 0.1 to 3% by weight, based on the amount of pigment in particulate form, of one or more unsaturated carboxylic acids of the formula VI
- the second monomer or the second mixture of comonomers is selected such that a polymer or copolymer having a glass transition temperature T g of about 0 ° C. is produced in step d).
- the second monomer or the second mixture of comonomers is selected such that a polymer or copolymer having a glass transition temperature T g of 30 ° C. or higher is produced in step d).
- the second monomer or the second mixture of comonomers is selected such that a polymer or copolymer having a glass transition temperature T g of below 20 ° C. is produced in step d).
- Another object of the present invention are pigments in particulate form, treated by the process according to the invention. They are usually obtained in the form of aqueous dispersions, which are also the subject of the present invention, and can be easily separated off by measures known to the person skilled in the art.
- Aqueous dispersions according to the invention of pigments treated according to the invention in particulate form can have a solids content of 10 to 50% by weight, preferably 30 to 40% by weight.
- Pigments treated according to the invention are coated with at least one layer of polymers or copolymers which are derived from monomers or comonomers from step c) and monomers or comonomers from step d).
- the majority of the pigments treated according to the invention are coated with two layers of polymers or copolymers, it being possible for the layers to be interpenetrating and not to be strictly different from one another.
- the particles characterized in this way are also referred to below as pigment-containing polymer particles.
- the treated pigments according to the invention in particulate form can be present in a mixture with a polymer or copolymer which is derived from monomers or mixtures of comonomers from step d).
- pigments treated according to the invention are present in a mixture with polymer or copolymer which is derived from monomers or mixtures of comonomers from step d).
- the polymer or copolymer derived from monomers or mixtures of comonomers from step d) is preferably obtained in the form of spherical particles.
- the particles characterized in this way are also called pigment-free polymer particles below.
- the weight ratio of pigment-containing polymer particles to pigment-free polymer particles is in the range from 10: 0.1 to 10: 3, preferably from 10: 0.5 to 10: 2.
- the mean radii r (pigment-free polymer particles) are smaller than the mean radii r (pigment-containing polymer particles), in each case based on the number average.
- Another object of the present invention is the use of pigments treated according to the invention in particulate form as or for the production of colorant preparations.
- Another object of the present invention is a process for the production of colorant preparations using pigments treated according to the invention in particulate form.
- the present invention further relates to colorant preparations produced using pigments treated in accordance with the invention in particulate form.
- the aqueous dispersions according to the invention can be used as such and also the pigments treated according to the invention separated from the dispersions according to the invention.
- Another object of the present invention is the use of pigments treated according to the invention in particulate form as or for the production of inks for the ink jet process.
- Another object of the present invention is a process for the production of inks for the ink jet process using the pigments treated according to the invention in particulate form.
- Another object of the present invention are inks for the ink jet process, produced using pigments treated in accordance with the invention in particulate form.
- the aqueous dispersions according to the invention can be used as such and the pigments treated according to the invention separated from the dispersions according to the invention can be used as such to produce inks for the ink jet process according to the invention.
- Colorant preparations according to the invention and in particular inks according to the invention for the ink jet process can be produced particularly easily by diluting dispersions prepared according to the invention with water, for example, and optionally mixing them with additives.
- an ink according to the invention for the ink jet process contains in the range from 1 to 50 g / 100 ml, preferably 1.5 to 15 g / 100 ml, of pigment treated according to the invention in particulate form.
- Colorant preparations according to the invention and in particular inks according to the invention for the ink jet process can contain organic solvents as additives.
- Low molecular weight polytetrahydrofuran is a preferred additive; it can be used alone or preferably in a mixture with one or more difficult to evaporate, water-soluble or water-miscible organic solvents.
- the preferably used low molecular weight polytetrahydrofuran usually has an average molecular weight M w of 150 to 500 g / mol, preferably 200 to 300 g / mol and particularly preferably approximately 250 g / mol (corresponding to a molecular weight distribution).
- Polytetrahydrofuran can be prepared in a known manner via cationic polymerization of tetrahydrofuran. This creates linear polytetramethylene glycols.
- Suitable solvents are polyhydric alcohols, preferably unbranched and branched polyhydric alcohols having 2 to 8, in particular 3 to 6, carbon atoms, such as ethylene glycol, 1, 2- and 1, 3-propylene glycol, glycerol, erythritol, pentaerythritol, pentites such as arabitol, adonite and xylitol and hexites such as sorbitol, mannitol and dulcitol.
- polyhydric alcohols preferably unbranched and branched polyhydric alcohols having 2 to 8, in particular 3 to 6, carbon atoms, such as ethylene glycol, 1, 2- and 1, 3-propylene glycol, glycerol, erythritol, pentaerythritol, pentites such as arabitol, adonite and xylitol and hexites such as sorbitol, mannitol and dulcitol.
- polyethylene and polypropylene glycols which should also be understood to mean the lower polymers (di-, tri- and tetramers), and their mono- (especially dC 6 -, especially C ⁇ -C -) alkyl ethers.
- Examples include di-, tri- and tetraethylene glycol, diethylene glycol monomethyl, ethyl, propyl and butyl ether, triethylene glycol monomethyl, ethyl, propyl and butyl ether, di-, tri- and tetra-1,2 - and -1, 3-propylene glycol and di-, tri- and tetra-1, 2- and -1, 3-propylene glycol monomethyl, ethyl, propyl and butyl ether.
- pyrrolidone and N-alkylpyrrolidones are also suitable as solvents.
- pyrrolidone and N-alkylpyrrolidones the alkyl chain of which preferably contains 1 to 4, especially 1 to 2, carbon atoms.
- suitable alkylpyrrolidones are N-methylpyrrolidone, N-ethylpyrrolidone and N- (2-hydroxyethyl) pyrrolidone.
- solvents examples include 1, 2- and 1,3-propylene glycol, glycerol, sorbitol, diethylene glycol, polyethylene glycol (M w 300 to 500 g / mol), diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, pyrrolidone, N-methylpyrrolidone and N- ( 2-hydroxyethyl) pyrrolidone.
- Polytetrahydrofuran can also be mixed with one or more (eg two, three or four) of the solvents listed above.
- the colorant preparations according to the invention and in particular the inks according to the invention for the inkjet process can contain 0.1 to 80% by weight, preferably 5 to 60% by weight, particularly preferably 10 to 50% by weight, and very particularly preferably 10 to 30 wt .-%, contain non-aqueous solvents.
- non-aqueous solvents as additives in particular also the particularly preferred solvent combinations mentioned, can advantageously be supplemented by urea (generally 0.5 to 3% by weight, based on the weight of the colorant preparation), which has the water-retaining effect of the solvent mixture reinforced.
- urea generally 0.5 to 3% by weight, based on the weight of the colorant preparation
- the colorant preparations according to the invention and in particular the inks according to the invention for the ink jet process can contain further auxiliaries, such as are customary in particular for aqueous ink jet inks and in the printing and coating industry.
- auxiliaries such as are customary in particular for aqueous ink jet inks and in the printing and coating industry.
- preservatives such as 1,2-benzisothiazolin-3-one (commercially available as Proxel brands from Avecia Lim.) And its alkali metal salts, glutardialdehyde and / or tetramethylolacetylenediamine, Protectole®, antioxidants, degassers / defoamers such as acetylenediols and ethoxylated acetylenediols, which usually contain 20 to 40 moles of ethylene oxide per mole of acetylenediol and at the same time can also have a dispersing effect, agents for regulating the
- the colorant preparations according to the invention and in particular the inks according to the invention for the inkjet process have a dynamic viscosity of 2 to 80 mPa-s, preferably 3 to 20 mPa-s, measured at 20 ° C.
- the surface tension of colorant preparations according to the invention and in particular inks according to the invention for the ink jet process is generally 24 to 70 mN / m, in particular 25 to 60 mN / m, measured at 20 ° C.
- the pH of colorant preparations according to the invention and in particular inks according to the invention for the ink jet process is generally 5 to 10, preferably 6 to 9.
- Another aspect of the present invention is a method for printing flat or three-dimensional substrates by the ink-jet method using the colorant preparations according to the invention.
- the colorant preparations according to the invention or the inkjet inks according to the invention are printed onto the substrate and the print obtained is then optionally fixed.
- the ink jet process the usually aqueous inks are sprayed directly onto the substrate in small droplets.
- pressure is exerted on the ink system either by means of a piezoelectric crystal or a heated cannula (bubble or thermo-jet method) and an ink drop is thus ejected.
- Such procedures are in text. Chem. Color, volume 19 (8), pages 23 to 29, 1987, and volume 21 (6), pages 27 to 32, 1989.
- Suitable substrate materials are: - cellulose-containing materials such as paper, cardboard, cardboard, wood and wood-based materials, which can also be lacquered or otherwise coated,
- metallic materials such as foils, sheets or workpieces made of aluminum, iron, copper, silver, gold, zinc or alloys of these metals, which can be painted or otherwise coated,
- Polymeric materials of all kinds such as polystyrene, polyamides, polyesters, polyethylene, polypropylene, melamine resins, polyacrylates, polyacrylonitrile, polyurethanes, polycarbonates, polyvinyl chloride, polyvinyl alcohols, polyvinyl acetates, polyvinyl pyrrolidones and corresponding copolymers and block copolymers, biodegradable polymers and natural polymers such as Gelatin,
- - textile substrates such as fibers, yarns, threads, knitwear, woven goods, non-wovens and made-up goods made of polyester, modified polyester, polyester blend, cellulose-containing materials such as cotton, cotton blend, jute,
- the colorant preparations according to the invention and in particular the inks according to the invention for the ink jet process show overall advantageous application properties, above all good writing behavior and good long-term writing behavior (kogation) and, especially when using the particularly preferred solvent combination, good drying behavior, and give high-quality print images, i.e. high brilliance and color depth as well as high friction, light, water and
- Wetrubfastness are particularly suitable for printing on coated and uncoated paper and textile.
- Another embodiment of the present invention are substrates, in particular textile substrates, which have been printed by one of the above-mentioned methods according to the invention and which are distinguished by particularly sharply printed images or drawings and an excellent grip.
- At least two, preferably at least three, different inks according to the invention for the ink jet process can be combined to form sets, wherein different inks according to the invention each contain different pigments, each treated with the process of the invention, with different colors.
- Another object of the present invention is the use of the treated pigments according to the invention in particulate form for coloring textile.
- Another object of the present invention is a process for coloring textile using the treated pigments according to the invention in particulate form, and another object of the present invention is colored textile substrates obtainable by a process according to the invention for coloring textile substrates.
- textile or textile substrates are to be understood as meaning textile fibers, textile semifinished and finished products and finished goods made therefrom which, in addition to textiles for the clothing industry, also include carpets and other home textiles as well as textile structures serving technical purposes.
- This also includes unshaped structures such as flakes, line-shaped structures such as twine, threads, yarns, linen, cords, ropes, threads, and body structures such as felts, fabrics, knitted fabrics, nonwovens and wadding.
- the textiles can be of natural origin, for example cotton, wool or flax, or synthetic, for example polyamide, polyester, modified polyester, polyester blend fabric, polyamide blend fabric, polyacrylonitrile, triacetate, acetate, polycarbonate, polypropylene, polyvinyl chloride, polyester microfiber and glass fiber fabric.
- a dye liquor for pigment dyeing or a printing paste for pigment printing, especially textile pigment printing is produced from the dispersions described above.
- the present invention thus furthermore relates to a process for the production of dye liquors for pigment dyeing and for the production of printing pastes for pigment printing, and to the dyeing liquors and printing pastes according to the invention, hereinafter also referred to as production processes according to the invention.
- the production process according to the invention consists in mixing at least one dispersion according to the invention with auxiliaries required for the dyeing or printing process and adjusting the colorant content by dilution with water.
- the water used to carry out the manufacturing process according to the invention does not have to be completely desalinated.
- the rule is that partially demineralized water or very soft water is used. If there is not enough soft water available, complexing agents (water softeners) are generally used to reduce the water hardness.
- water softeners compounds that mask Ca + and Mg 2+ ions are suitable as water softeners in the pigment dyeing process.
- Particularly suitable water softeners are, for example, nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, hydroxyethylethylenediaminetriacetic acid or methylglycinediacetic acid.
- the amount of water added to produce the dyeing liquor depends on the depth of color to be achieved on the textile on one side and the amount of dyeing liquor applied to the textile by means of a padding on the other side.
- Dyeing liquors according to the invention may also contain additives.
- Preferred additives are organic solvents in concentrations of 0 to 10% by weight, preferably 0.1 to 5% by weight.
- suitable solvents are polyethylene glycols and single etherified alkylene glycol or single etherified polyethylene glycols such as diethylene glycol mono-n-butyl ether.
- Dyeing liquors according to the invention can also contain wetting agents as an additive, preferably low-foaming wetting agents, since, in the event of high turbulence in the dyeing process, the formation of legalities can impair the quality of the dyeing.
- wetting agents are: ethoxylation and / or propoxylation products of fatty alcohols or propylene oxide-ethylene oxide block copolymers, ethoxylated or propoxylated fatty or oxo alcohols, furthermore ethoxylates of oleic acid or alkylphenols, alkylphenol ether sulfates, alkylpolyglycosides, alkylphosphonates, alkylphenylphosphonates, alkylphosphonates, alkylphosphonates, or alkylphenyl phosphates.
- Dry textile fabrics or knitted fabrics such as those used in continuous pigment dyeing, contain a large amount of air.
- deaerators is necessary here in the dyeing process. These are based, for example, on polyether siloxane copolymers or on phosphoric acid esters. They can be contained in the dyeing liquors according to the invention in amounts of 0.01 to 2 g / l.
- Dyeing liquors according to the invention can also be added as an additive with one or more grip improvers. These are usually polysiloxanes or waxes based on polyethylene or polyethylene glycol. Polysiloxanes have the advantage of permanence, while some waxes can be washed out slowly during use. In one embodiment of the present invention, however, the addition of grip enhancers can be dispensed with.
- dye liquors according to the invention have a weakly acidic pH, preferably in the range from 4 to 6.5.
- the dynamic viscosity of the dye liquors according to the invention is in the range of less than 100 mPa-s, measured at 20 ° C.
- the surface tensions of the dyeing liquors according to the invention are to be adjusted so that wetting of the goods is possible. Surface tensions of less than 50 mN / m, measured at 20 ° C, are common.
- the production process according to the invention usually comprises mixing at least one pigment treated according to the invention in particulate form with one or more additives listed above, such as solvents, defoamers, hand improvers, emulsifiers and / or biocides, and filling with water.
- the method usually comprises stirring the components in a mixing container, the size and shape of the mixing container being uncritical. Clarification is preferably followed by stirring.
- Another aspect of the present invention is a method for dyeing textile substrates using the dye liquors according to the invention described above.
- the process can be carried out in common machines.
- Foulards are preferred which contain two pressed rollers as an essential element through which the textile is guided.
- the liquid is filled in above the rollers and wets the textile.
- the textile is squeezed off by the pressure and a constant application is guaranteed.
- the textile is guided over a deflection roller through a trough with the dye liquor. Excess liquor is then pressed off via a pair of rollers, which is attached above the liquor, thus ensuring a constant application.
- the actual dyeing step is usually followed by thermal drying and fixing, preferably drying at temperatures from 70 to 120 ° C. over a period of 30 seconds to 3 minutes and then fixing at temperatures from 150 ° C. to 200 ° C. over a period from 30 seconds to 5 minutes.
- a method for pigment coloring after the padding process is preferred.
- the printed and colored substrates are characterized by a special brilliance of the colors and at the same time an excellent grip of the printed or colored substrates.
- Another aspect of the present invention is therefore substrates colored by the process described above using the dyeing liquors according to the invention.
- Another aspect of the present invention is the use of pigments treated according to the invention in particulate form for textile printing.
- at least one pigment treated according to the invention is incorporated in particulate form into a printing paste for this purpose.
- the printing paste according to the invention for textile printing of at least one pigment treated according to the invention is advantageously produced in particulate form by mixing with auxiliaries common in the printing process and then adjusting the colorant content by diluting with water.
- Natural or synthetic thickeners can be used as thickeners. It is preferred to use synthetic thickeners, for example generally liquid solutions of synthetic polymers in, for example, white oil or as aqueous solutions.
- the polymers contain acid groups that are neutralized completely or to a certain extent with ammonia. Ammonia is released during the fixing process, which lowers the pH and begins the actual fixing.
- the lowering of the pH value necessary for fixation can alternatively be carried out by adding non-volatile acids such as e.g. Citric acid, succinic acid, glutaric acid or malic acid.
- the finished paste according to the invention can contain 30 to 70% by weight of white oil.
- Aqueous thickeners usually contain up to 25% by weight of polymer. If you want to use aqueous formulations of a thickener, you generally use aqueous ammonia. The use of granular, solid formulations of a thickener is also conceivable in order to be able to produce emission-free pigment prints.
- Printing pastes according to the invention can furthermore contain grip improvers which are usually selected from silicones, in particular polydimethylsiloxanes, and fatty acid esters.
- grip improvers which are usually selected from silicones, in particular polydimethylsiloxanes, and fatty acid esters.
- Examples of commercially available grip improvers that can be added to the printing pastes according to the invention are Acramin® plasticizer Sl (Bayer AG), Luprimol SIG® and Luprimol CW® (BASF Aktiengesellschaft).
- Printing pastes according to the invention can be added as further additives, one or more emulsifiers, especially when the pastes contain thickeners containing white oil and are obtained as an oil-in-water emulsion.
- suitable emulsifiers are aryl- or alkyl-substituted polyglycol ethers.
- Commercially available examples of suitable emulsifiers are Emulsifier W® (Bayer), Luprintol PE New® and Luprintol MP® (BASF Aktiengesellschaft), and Solegal W® (Hoechst AG).
- Bronsted acids the use of which is preferred particularly in the case of pastes on a non-aqueous basis, can be added as further additives.
- Ammonium salts of inorganic acids for example diammonium hydrogen phosphate, are preferred.
- Pigment printing using at least one pigment in particulate form treated according to the invention can be carried out by various methods which are known per se. As a rule, you use a stencil through which you press the printing paste with a squeegee. This process is part of the screen printing process.
- the pigment printing process according to the invention using the printing pastes according to the invention delivers printed substrates with particularly high brilliance and depth of color of the prints with an excellent grip of the printed substrates.
- the present invention therefore relates to substrates printed by the method according to the invention using the printing pastes according to the invention.
- a further embodiment of the present invention are substrates, in particular textile substrates, which have been colored by one of the above-mentioned methods according to the invention and which are distinguished by particularly sharply printed images or drawings and an excellent grip.
- Another object of the present invention is the use of the treated pigments according to the invention in particulate form for coloring leather.
- Another object of the present invention is a process for coloring leather using the treated pigments according to the invention in particulate form, and another object of the present invention is of a culinary form, and a further object of the present invention is colored leather, obtainable by a process according to the invention for coloring leather.
- leather is understood to mean pre-tanned, tanned and, if appropriate, retanned leather or suitably processed synthetic exchange material, which may have already been treated with at least one dye during at least one tanning step.
- leather in the context of the present invention can already be hydrophobicized or greased.
- Particulate pigment treated according to the invention is compatible with the commercially available auxiliaries for finishing leather, which can be used to regulate the feel, color, flow and viscosity.
- auxiliaries for finishing leather which can be used to regulate the feel, color, flow and viscosity.
- These are generally solutions (e.g. leveling agents, products based on glycol ethers, ethers such as butyl glycol, methoxypropanol, tributoxyethyl phosphate) or emulsions / dispersions with casein, waxes, silicones in the usual application quantities or Application concentrations (see F. Stather, Gerschenemie u. Gerfertechnologie, Akademie Verlag Berlin, 1967, p.507-632).
- the process according to the invention for coloring is a process for pot-coloring leather in the barrel for the purpose of covering defects which have arisen in a previous coloring of leather in the barrel.
- dyeing is used to cover defects with pigment treated according to the invention in particulate form, which has a significantly higher light fastness than dyes, determined, for example, according to DIN EN ISO 5 B02.
- the process for coloring leather according to the invention is a process for the aniline-like spray dyeing of leather, hereinafter also referred to as spray dyeing according to the invention.
- spray dyeing according to the invention the natural surface and structure of leather preferably remain unchanged.
- the pigment treated in accordance with the invention is mixed in particulate form with water and surfactant and the mixture thus obtained is sprayed onto undyed leather using devices known per se.
- Well-known ionic and non-ionic surfactants are suitable as surfactants, preferably non-ionic surfactants.
- Particularly preferred non-ionic surfactants are, for example, alkoxylated saturated or unsaturated fatty alcohols or alkoxylated saturated or unsaturated fatty amines, ie alcohols or amines with more than 14 C atoms.
- mixtures are prepared
- the rest is water, with data in% by weight being based on the mixture.
- One or more prepared mixtures are sprayed onto undyed leather.
- the method for coloring leather according to the invention is a method for finishing leather.
- the aim of finishing leather also known as coating leather, is to give leather the desired appearance, special haptic properties and usage fastnesses, e.g. Elasticity, amine resistance, wet and dry rub fastness and water fastness.
- the process according to the invention for coloring starts from pre-tanned, tanned and, if appropriate, retanned leather, which can have been hydrophobicized and dyed in a manner known per se.
- At least one primer dispersion or - if a two-layer primer structure is desired first a so-called adhesive primer, then the primer dispersion - which may or may contain one or more pigments treated according to the invention, in an amount on the leather to be colored, per m 2
- the primer dispersion - which may or may contain one or more pigments treated according to the invention, in an amount on the leather to be colored, per m 2
- Leather surface about 10 to 100 g of solid are applied, preferably 20 to 50 g / m 2 .
- the application can be carried out by methods known per se, for example rollcoating (roller application), brushing, spraying, so-called “airless spraying”, printing, laminating, plushing, brushing, pouring or spraying on.
- primer dispersions used according to the invention which are also referred to below as priming dispersions according to the invention, are usually aqueous. They can contain other, non-aqueous solvents such as ethylene glycol, N-methylpyrrolidone, 3-methoxypropanol and propylene carbonate. In a preferred embodiment, primer dispersions according to the invention contain the following constituents:
- At least one pigment treated in accordance with the invention in particulate form for example 1 to 10% by weight, preferably 1.5 to 5% by weight, of at least one wax, such as, for example, oxidized polyethylene wax, carnauba wax or montan wax, for example preferably 1 up to 15% by weight, ⁇ l) of at least one biocide, for example 1, 2-benzisothiazolin-3-one (“BIT”) (commercially available as Proxel® brands from Avecia Lim.) and its alkali metal salts; other suitable biocides are 2-methyl-2H-isothiazol-3 (“MIT”) and 5-chloro-2-methyl-2H-isothiazol-3-one (“CIT"). Generally are 10 to 150 ppm
- BIT 2-benzisothiazolin-3-one
- CIT 5-chloro-2-methyl-2H-isothiazol-3-one
- Copolymer binder It can be advantageous if the comonomer composition of the additional binder corresponds approximately to the copolymer according to d). For automotive leather, blending with a urethane binder can be a further advantage.
- Primer dispersions can also contain at least one filler and anti-adhesive.
- aqueous formulations containing fatty acid esters, protein or proteins and inorganic filler, which can be selected from silicates and clay minerals, are suitable.
- Primer dispersions according to the invention can have a solids content of 10 to 80% by weight, 20 to 50% by weight being preferred.
- a top layer can then be applied by methods known per se.
- the top layer can consist of the usual components.
- the cover layer based in each case on the total mass of cover layer, contains:
- the top layer contains at least one binder, the hardness of which is higher than the hardness of the primer layer.
- a finish also called a finish dispersion
- a finish can then be applied, with a finish of about 5 to 30 g / m 2 of leather surface being applied.
- the finish or top coat serves to protect the leather and, in addition to high flexibility, should also ensure good scratch resistance, oil and water resistance.
- finishes can include, for example: formulations of at least one binder based on acrylate or polyurethane, a crosslinking agent, protein, nitrocellulose emulsion, fillers based on organic or inorganic matting agents, silicone wax, fatty acid esters, fatty acids.
- Finishing dispersions according to the invention can contain, in addition to the pigment treated according to the invention in particulate form, further binders known per se, for example polyurethane dispersion, prepared in accordance with EP-A2 0 392352.
- Top layers and finishing dispersions can be one or more thickening agents! contain.
- Crosslinkable copolymers based on acrylic acid and acrylamide and thickeners based on polyurethane or polyvinylpyrrolidone or acrylate (co) polymers may be mentioned as examples.
- the finish After the finish has been applied, it can be dried under customary conditions, for example at temperatures in the range from 60 to 80 ° C., and then ironed on, for example at temperatures in the range from 90 to 160 ° C. You can also iron hydraulically, for example at reduced pressure and temperatures in the range of 70 to 100 ° C. Conventional ironing devices or continuous ironing machines are possible.
- At least one formulation according to the invention is used in at least one step - priming, application of the top layer and finishing.
- a finish in the form of a dispersion also called a finish dispersion in the context of the present invention, can then be applied, with about 10 to 30 g / m 2 of leather surface finish dispersion being applied.
- the finish dispersion contains
- cc3) at least one pigment treated according to the invention in particulate form for example in the range from 0.05 to 5% by weight, ⁇ 3) optionally at least one wax, such as, for example, oxidized polyethylene wax or montan wax, suitable amounts are, for example, 20 to 70% by weight , ⁇ 3) optionally at least one biocide, for example 1, 2-benzisothiazolin-3-one ("BIT”) (commercially available as Proxel® brands from Avecia Lim.) and its alkali metal salts; other suitable biocides are 2-methyl 2H-isothiazol-3 (“MIT”) and 5-chloro-2-methyl-2H-isothiazol-3-one (“CIT"). In general, 10 to 150 ppm biocide is sufficient.
- BIT 2-benzisothiazolin-3-one
- MIT 2-methyl 2H-isothiazol-3
- CIT 5-chloro-2-methyl-2H-isothiazol-3-one
- At least one further binder for example binders containing urethane groups.
- finishing dispersions can contain other conventional constituents, for example shellac or one or more further pigments or nitrocellulose.
- Finishing dispersions can contain one or more thickeners.
- Crosslinkable copolymers based on acrylic acid and acrylamide may be mentioned as examples.
- Preferred examples are copolymers with 85 to 95% by weight of acrylic acid, 4 to 14% by weight of acrylamide and about 1% by weight of the (meth) acrylamide derivative of the formula VII
- At least one layer selected from the primer layer, top layer and finish, contains at least one pigment treated in accordance with the invention in particulate form.
- at least two, particularly preferably at least three, layers contain at least one pigment treated in accordance with the invention in particulate form.
- pigments treated according to the invention in particulate form on leather colored according to the invention neither agglomerate to any measurable extent nor show a tendency to migrate.
- Another aspect of the present invention is colored leather, produced using at least one pigment treated in accordance with the invention in particulate form.
- leather according to the invention are characterized by pleasant haptic properties with particularly uniform coloring and low tendency of the pigment to migrate in particulate form and are therefore particularly suitable for the production of shoes.
- leather according to the invention is also particularly suitable as furniture leather and in the automotive interior.
- Nd 8 H 37 - (OCH 2 CH 2 ) 25 -OH is octa-decanol ethoxylated with ethylene oxide, prepared according to the following instructions:
- the yield was 1337 g.
- the glass transition temperature was determined using a DSC device DSC822 (series TA8200) from Mettler-Toledo with an autosampler TSO 801 RO.
- the DSC device was equipped with a temperature sensor FSR5. It was worked according to DIN 53765.
- the milling was continued until the pigment particles had an average diameter of 100 nm.
- Mixture 1.1a) of pigment was obtained in particulate form and non-ionic surfactant.
- Dispersion 1.1b) of pigment was obtained in particulate form in an aqueous medium.
- Nitrogen was passed through the dispersion from step 1.1b) over a period of 1 hour.
- the dispersion was then heated to 85 ° C.
- 0.29 tert-butyl hydroperoxide (70% by weight in water) and 0.2 g HO-CH 2 -SO 2 Na were added.
- the mixture was stirred at 85 ° C. for a further 30 minutes and then, for deodorization, simultaneously a solution of 1.1 g of tert-butyl hydroperoxide (70% by weight in chemical water) in 15 g of distilled water and a solution of 0 , 7 g of HO-CH 2 -O-SO 2 Na in 15 g of distilled water were metered in over a period of 90 minutes.
- the mixture was then cooled to room temperature and the pH was adjusted to 7 using 25% by weight aqueous ammonia.
- the dispersion obtained in this way was then filtered through a 120 ⁇ m mesh and then through a 15 ⁇ m mesh.
- aqueous dispersion containing pigment particles treated according to the invention was obtained.
- the solids content was 37.8% by weight, the dynamic viscosity was 25 mPa-s, measured at 20 ° C.
- the particle diameter distribution of the particulate-form pigment treated according to the invention obtainable as described above was determined with the aid of an Autosizer IIC from Malvern according to ISO 13321 and gave a maximum at 137 nm.
- the mixture was stirred at 85 ° C. for a further 30 minutes and then, for deodorization, simultaneously a solution of 1.1 g of tert-butyl hydroperoxide (70% by weight in water) in 15 g of distilled water and a solution of 0. 7 g of HO-CH 2 -O-SO 2 Na in 15 g of distilled water were metered in over a period of 90 minutes.
- the mixture was then cooled to room temperature and the pH was adjusted to 7 using about 4 g of 25% by weight aqueous ammonia.
- the dispersion obtained in this way was then filtered through a 120 m mesh and then through a 15 ⁇ m mesh. The filtration period was 4 minutes.
- An aqueous dispersion containing pigment particles treated according to the invention was obtained.
- the solids content was 37.8% by weight, the dynamic viscosity was 25 mPa-s.
- 10 pigment particles treated according to the invention were determined by Coulter Counter from Malvern according to ISO 13321 and gave a maximum at 137 nm.
- Example 1. 1 a) to 1. 1c) was repeated.
- step d) a second mixture of 20 comonomers according to Table 1 was added and copolymerized under conditions analogous to 1. 1d).
- Pigments treated in accordance with the invention were obtained in particulate form Nos. 2 to 10.
- the mixture was stirred at 85 ° C. for a further 30 minutes and then, for deodorization, simultaneously a solution of 1.1 g of tert-butyl hydroperoxide (70% by weight in water) in 25 g of distilled water and a solution of 0.7 g of NaO-CH 2 -O-SO 2 H was metered into 25 g of distilled water over a period of 90 minutes.
- the mixture was then cooled to room temperature and the pH was adjusted to 7 using 25% by weight aqueous ammonia.
- the dispersion obtained in this way was then filtered through a 120 ⁇ m mesh and then through a 15 ⁇ m mesh.
- An aqueous dispersion 1.1 d) was obtained containing pigment treated in particulate form according to the invention.
- the solids content was 34.6% by weight and the dynamic viscosity was 35 mPa-s.
- the particle size distribution of the pigment treated according to the invention, which is obtainable as described above, in particulate form gave a maximum at 135 nm.
- the particle size was determined with the aid of photon correlation spectroscopy (PCS), also known as quasi-elastic light scattering (QELS).
- the measurement method is described in the ISO13321 standard. A dilute aqueous polymer dispersion (c ⁇ 0.005% by weight) is examined.
- Example l.2d was repeated, but the following monomers were added:
- Example l.12d was repeated, but starting from I.2 c) instead of 1.1 c). Dispersion 1.14 d) was obtained, comprising pigment in particulate form treated according to the invention.
- An ink jet ink was formulated from an aqueous dispersion prepared according to Example 1.1d, containing pigment in particulate form, according to the invention, by mixing the following components according to the following recipe.
- the mixture was stirred and filled into ink jet cartridges.
- This ink according to the invention showed a dynamic viscosity of 3.7 mPa-s and was suitable for printing in common printers.
- the ink according to the invention was printed onto cotton (100% cotton 250 g / m 2 ). After drying in air and hot air fixation (150 ° C for 5 min), the printed cotton showed excellent fastness to use.
- the rub fastnesses were determined according to DIN 54021, the wash fastness according to DIN 54011.
- 60 g of the pigment dispersion prepared according to Example 1.1 are mixed with 6 g of a water-soluble, statistical copolymer based on 66% acrylic acid and 34% acrylic acid amide (molecular weight M w 60,000 g / mol) and made up to 1 liter with demineralized water.
- the dyeing liquor thus obtained was padded through a pad, manufacturer. Mathis, type no. HVF12085, on a 100% ' ⁇ ges cotton fabric. The fleet uptake was 85%. The cotton fabric was then dried at 80 ° C. for 3 minutes. The cotton fabric was then fixed for 5 minutes at 150 ° C. The determination of the fastnesses showed:
- Example 11.1. was repeated, but with the corresponding pigments 2 to 10 treated according to the invention.
- Textiles colored with the pigments treated according to the invention had an excellent feel. It was found that the textiles colored according to the invention, even after repeated washing, did not show any fading as a result of wash folds breaking.
- Textiles colored with pigments treated according to the invention in the manner of mixed colors show excellent brilliance with excellent levelness.
- the liquor was then drained off, the leather was washed with 200 parts by weight of water, the liquor drained off, the leather jacked up, stretched out, dried, placed, milled and tensioned for 3 hours.
- the result was a perfectly dyed leather with an optically flawless surface.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Coloring (AREA)
- Ink Jet (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE502004005151T DE502004005151D1 (de) | 2003-06-25 | 2004-06-11 | verfahren zur behandlung von pigmenten in partikulärer form |
| EP04736634A EP1641884B1 (de) | 2003-06-25 | 2004-06-11 | verfahren zur behandlung von pigmenten in partikulärer form |
| US10/562,466 US20070155855A1 (en) | 2003-06-25 | 2004-06-11 | Method for treating particulate pigments |
| JP2006515892A JP2007527931A (ja) | 2003-06-25 | 2004-06-11 | 粒子状の顔料の処理方法 |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003128716 DE10328716A1 (de) | 2003-06-25 | 2003-06-25 | Verfahren zur Behandlung von Pigmenten in partikulärer Form |
| DE10328716.7 | 2003-06-25 | ||
| DE2003130412 DE10330412A1 (de) | 2003-07-04 | 2003-07-04 | Verfahren zur Behandlung von Pigmenten in partikulärer Form und Verwendung derselben bei der Kolorierung von Textil |
| DE10330412.6 | 2003-07-04 | ||
| DE10340777.4 | 2003-09-02 | ||
| DE2003140777 DE10340777A1 (de) | 2003-09-02 | 2003-09-02 | Verfahren zur Behandlung von Pigmenten in partikulärer Form und Verwendung derselben bei der Kolorierung vo Leder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004113454A1 true WO2004113454A1 (de) | 2004-12-29 |
Family
ID=33544855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/006298 Ceased WO2004113454A1 (de) | 2003-06-25 | 2004-06-11 | Verfahren zur behandlung von pigmenten in partikulärer form |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20070155855A1 (de) |
| EP (1) | EP1641884B1 (de) |
| JP (1) | JP2007527931A (de) |
| AR (1) | AR044891A1 (de) |
| AT (1) | ATE374799T1 (de) |
| DE (1) | DE502004005151D1 (de) |
| WO (1) | WO2004113454A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006066809A1 (de) * | 2004-12-20 | 2006-06-29 | Basf Aktiengesellschaft | Verfahren zum bedrucken oder kolorieren von substraten |
| WO2006066808A1 (de) * | 2004-12-20 | 2006-06-29 | Basf Aktiengesellschaft | Verfahren zum kolorieren von zellulosehaltigen substraten |
| DE102008040980A1 (de) | 2007-08-29 | 2009-03-05 | Basf Se | Verfahren zur Herstellung von koloriertem Papier oder Textil |
| JP2009544775A (ja) * | 2006-07-25 | 2009-12-17 | クラリアント・ファイナンス・(ビーブイアイ)・リミテッド | 有色水性ポリマー分散物、及びそれの製造及び使用 |
| CN109868062A (zh) * | 2019-03-26 | 2019-06-11 | 张灯彩 | 一种防污抗裂皮革涂料的制备方法 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5252164B2 (ja) * | 2006-09-29 | 2013-07-31 | Dic株式会社 | ポリマーコート顔料およびその製造方法 |
| JP5125178B2 (ja) * | 2007-03-29 | 2013-01-23 | Dic株式会社 | β型銅フタロシアニン顔料の製造方法及びβ型銅フタロシアニン顔料 |
| US9187578B2 (en) | 2009-04-16 | 2015-11-17 | Dic Corporation | Polymer modified pigment and production process of the same |
| US8507102B1 (en) * | 2012-08-07 | 2013-08-13 | Fownes Brothers & Co., Inc. | Conductive leather materials and methods for making the same |
| CN104449570B (zh) * | 2014-11-19 | 2016-06-22 | 沈阳建筑大学 | 一种适用于高岭土超细粉的粉体助磨剂 |
| US10221519B2 (en) | 2014-12-10 | 2019-03-05 | Fownes Brothers & Co., Inc. | Water-repellant conductive fabrics and methods for making the same |
| EP3572235A1 (de) * | 2018-05-24 | 2019-11-27 | Agfa Nv | Verziertes naturleder |
| IT202000004906A1 (it) * | 2020-03-09 | 2021-09-09 | Linificio E Canapificio Naz S R L | Materiale biocomposito colorato |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133893A (en) * | 1957-07-30 | 1964-05-19 | American Cyanamid Co | Pigment particles coated with polymer and method of preparing the same |
| US4608401A (en) * | 1982-09-02 | 1986-08-26 | Union Carbide Corporation | Method of encapsulating finely divided solid particles |
| EP0209879A2 (de) * | 1985-07-22 | 1987-01-28 | The Dow Chemical Company | Teilchen von hydrofoben Polymeren von kolloidaler Dimension, die Teilchen eines organischen Materials dispergiert enthalten |
| WO1999001516A1 (de) * | 1997-06-30 | 1999-01-14 | Basf Aktiengesellschaft | Pigmentzubereitungen für das ink-jet-verfahren |
| EP1245653A2 (de) * | 2001-03-30 | 2002-10-02 | Eastman Kodak Company | Tintenstrahl-Tintenzusammensetzung und Druckverfahren |
| US6569231B1 (en) * | 1999-10-16 | 2003-05-27 | Degussa Ag | Pigment preparations, a process for preparing pigment preparations and use thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1172513A (en) * | 1965-11-11 | 1969-12-03 | Ici Ltd | Polymer Coated Particles |
-
2004
- 2004-06-11 DE DE502004005151T patent/DE502004005151D1/de not_active Expired - Fee Related
- 2004-06-11 US US10/562,466 patent/US20070155855A1/en not_active Abandoned
- 2004-06-11 AT AT04736634T patent/ATE374799T1/de not_active IP Right Cessation
- 2004-06-11 WO PCT/EP2004/006298 patent/WO2004113454A1/de not_active Ceased
- 2004-06-11 JP JP2006515892A patent/JP2007527931A/ja not_active Withdrawn
- 2004-06-11 EP EP04736634A patent/EP1641884B1/de not_active Expired - Lifetime
- 2004-06-24 AR ARP040102211A patent/AR044891A1/es unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133893A (en) * | 1957-07-30 | 1964-05-19 | American Cyanamid Co | Pigment particles coated with polymer and method of preparing the same |
| US4608401A (en) * | 1982-09-02 | 1986-08-26 | Union Carbide Corporation | Method of encapsulating finely divided solid particles |
| EP0209879A2 (de) * | 1985-07-22 | 1987-01-28 | The Dow Chemical Company | Teilchen von hydrofoben Polymeren von kolloidaler Dimension, die Teilchen eines organischen Materials dispergiert enthalten |
| WO1999001516A1 (de) * | 1997-06-30 | 1999-01-14 | Basf Aktiengesellschaft | Pigmentzubereitungen für das ink-jet-verfahren |
| US6569231B1 (en) * | 1999-10-16 | 2003-05-27 | Degussa Ag | Pigment preparations, a process for preparing pigment preparations and use thereof |
| EP1245653A2 (de) * | 2001-03-30 | 2002-10-02 | Eastman Kodak Company | Tintenstrahl-Tintenzusammensetzung und Druckverfahren |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006066809A1 (de) * | 2004-12-20 | 2006-06-29 | Basf Aktiengesellschaft | Verfahren zum bedrucken oder kolorieren von substraten |
| WO2006066808A1 (de) * | 2004-12-20 | 2006-06-29 | Basf Aktiengesellschaft | Verfahren zum kolorieren von zellulosehaltigen substraten |
| JP2009544775A (ja) * | 2006-07-25 | 2009-12-17 | クラリアント・ファイナンス・(ビーブイアイ)・リミテッド | 有色水性ポリマー分散物、及びそれの製造及び使用 |
| DE102008040980A1 (de) | 2007-08-29 | 2009-03-05 | Basf Se | Verfahren zur Herstellung von koloriertem Papier oder Textil |
| CN109868062A (zh) * | 2019-03-26 | 2019-06-11 | 张灯彩 | 一种防污抗裂皮革涂料的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1641884A1 (de) | 2006-04-05 |
| US20070155855A1 (en) | 2007-07-05 |
| EP1641884B1 (de) | 2007-10-03 |
| ATE374799T1 (de) | 2007-10-15 |
| JP2007527931A (ja) | 2007-10-04 |
| DE502004005151D1 (de) | 2007-11-15 |
| AR044891A1 (es) | 2005-10-05 |
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