EP1896545A1 - Semitransparente zinn-haltige interferenzpigmente - Google Patents
Semitransparente zinn-haltige interferenzpigmenteInfo
- Publication number
- EP1896545A1 EP1896545A1 EP06762003A EP06762003A EP1896545A1 EP 1896545 A1 EP1896545 A1 EP 1896545A1 EP 06762003 A EP06762003 A EP 06762003A EP 06762003 A EP06762003 A EP 06762003A EP 1896545 A1 EP1896545 A1 EP 1896545A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal oxide
- interference pigments
- coating
- pigments
- tin
- 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- Withdrawn
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/11—Encapsulated compositions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/04—Preparations containing skin colorants, e.g. pigments for lips
- A61Q1/06—Lipsticks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0078—Pigments consisting of flaky, non-metallic substrates, characterised by a surface-region containing free metal
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/50—Sympathetic, colour changing or similar inks
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/42—Colour properties
- A61K2800/43—Pigments; Dyes
- A61K2800/436—Interference pigments, e.g. Iridescent, Pearlescent
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
- C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
- C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/40—Glass
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
Definitions
- the present invention relates to semitransparent neutral body color interference pigments comprising a substrate and a coating comprising metallic tin and additionally at least one metal oxide
- effect pigments are substrates, for example of metals, mica or synthetic platelets of SiO 2 , glass or Al 2 O 3 , which are coated with one or more layers, for example of metals or metal oxides.
- metal oxides are commonly used layer materials, since they can be applied to the substrates by precipitation and are largely chemically inert.
- One common metal oxide used is titanium dioxide.
- the rutile modification of the titanium dioxide is the preferred modification. In order to achieve the highest possible degree of rutilization, the titanium dioxide layer is precipitated onto a previously applied tin dioxide layer. The tin dioxide controls the crystallization of the precipitated titanium dioxide layer in the modification of the rutile.
- a particular example of reduction pigments are the tin-containing gray pigments described in DE 195 22 267, which are obtainable by pyrolysis of substrates coated with tin dioxide and at least one further metal oxide and colloidal organic particles. The pyrolysis takes place at temperatures of 900-1100 0 C and oxygen exclusion.
- the pigments described there show a gray body color and a silver interference, when tilted to flat angles they also show a blue cast or a yellowish to brownish color. The resulting blue cast is due to the formation of
- Body color and silver interference which have a high gloss and show no blue color from any viewing angle, and thus are color-neutral overall.
- the present invention accordingly provides semitransparent neutral body color interference pigments comprising a substrate and a coating comprising metallic tin and additionally at least one metal oxide.
- the pigments of the invention show a high gloss, are gray and show no bluish cast, no matter from which viewing angle. In addition, they show a noble-looking, e.g. silver interference.
- the metallic tin-containing coating is free of carbon or other impurities resulting from reduction with hydrocarbons or metals, e.g. Lithium, sodium, calcium or other metals.
- bleeding effects, or effects in which certain components of the pigments diffuse to the surface of the pigment or completely out of the pigment do not occur.
- a process for the preparation of the interference pigments according to the invention wherein a substrate coated with a tin dioxide-containing and optionally additionally containing at least one further metal oxide coated substrate is reacted in a reducing gas mixture of nitrogen and hydrogen to form metallic tin.
- the pigments of the invention are versatile. Therefore, the use of interference pigments according to the present invention in cosmetics, paints, dyes, plastics, films, security printing, security features in documents and ID cards, laser marking, seed coloring, food coloring or drug coatings as well as for the preparation of pigment preparations and dry preparations Subject of the present invention.
- the pigments of the invention are based on substrates, wherein the substrate may comprise synthetic or natural mica, phyllosilicates, glass, borosilicates, SiO 2 , Al 2 O 3 , T ⁇ O 2 , graphite, and / or BiOCl.
- one or more layers comprising metal oxides, metal oxide hydrates, metal suboxides, metals, metal fluorides, metal nitrides, metal oxynitrides and / or mixtures thereof can be present between the metallic tin and additionally containing at least one metal oxide-containing coating and the substrate in a further embodiment of the present invention .
- the metal oxide, metal oxide hydrate, metal suboxide, metal, metal fluoride, metal nitride, metal oxynitride layers or mixtures thereof may be low (refractive index ⁇ 1.8) or high refractive index (refractive index> 1.8).
- Suitable metal oxides and metal oxide hydrates are all metal oxides or metal oxide hydrates to be applied as layers, such as e.g. Alumina, alumina hydrate, iron oxide, tin oxide, ceria, zinc oxide, zirconia, chromia, titania, especially titania, titania hydrate and mixtures thereof, e.g. Ilmenite or pseudobrookite.
- metal suboxides for example, the
- Titanium suboxides are used. Suitable metals are, for example, iron, chromium, aluminum, nickel, silver, gold, titanium, copper or alloys, as the metal fluoride, for example, magnesium fluoride is suitable. As metal nitrides or metal oxynitrides, for example, the nitrides or oxynitrides of the metals titanium, zirconium and / or tantalum can be used. Preference is given to applying metal oxide, metal, metal fluoride and / or metal oxide hydrate layers and very particularly preferably metal oxide and / or metal oxide hydrate layers to the substrates.
- multi-layer constructions of high-refractive and low-refractive index metal oxide, metal oxide hydrate, metal or metal fluoride layers can also be present, alternating preferably high and low refractive index layers.
- Particularly suitable materials of high refractive index are, for example TiO 2, ZrO 2, ZnO, SnO 2 and / or mixtures thereof. Particularly preferred is TiO 2 .
- the thickness of these layers is in each case about 3 to 300 nm and preferably 20 to 200 nm.
- Particularly suitable materials with a low refractive index are, for example, SiO 2 , SiO (OH) 2 , Al 2 O 3 , AlO (OH), B 2 O 3 , MgF 2 and / or mixtures thereof. SiO 2 is particularly preferred.
- the thickness of the individual layers of these materials is between 3 and 300 nm, preferably they are thicker than 20 nm and up to 200 nm thick.
- the materials of the additional layers are to be selected and their layer thicknesses adjusted as a function of the layer material in such a way that the semitransparency of the pigments according to the invention is maintained.
- the shape and size of the substrates used is not critical per se.
- the substrates may be irregularly shaped, spherical or platelet-shaped.
- Spherical substrates consist for example of SiO 2 or glass and have a diameter of 0.2 to 10 .mu.m, preferably from 0.5 to 5 .mu.m.
- the substrates are platelet-shaped.
- Platelet-shaped substrates generally have a thickness of between 0.05 and 5 ⁇ m, in particular between 0.1 and 4.5 ⁇ m.
- the extent of the interference pigments in the length or width can be between 1 and 250 ⁇ m, preferably in the range from 2 to 200 ⁇ m and very particularly preferably in the range from 2 to 100 ⁇ m.
- the size of the substrates can be adapted to the requirements of the respective applications.
- the substrates mentioned are provided with a coating containing metallic tin and additionally at least one metal oxide which acts as the outer optically active layer.
- the layer thickness of the coating containing metallic tin and additionally at least one metal oxide is 1 to 300 nm, preferably 1 to 100 nm.
- the proportion of metallic tin in the coating is 0.01 to 50 wt .-%, preferably 0.05 to 20 wt .-% and in particular 0.1 to 10 Wt .-%, based on the coating.
- at least one metal oxide are suitable
- Tin oxide, titanium oxide, zirconium oxide and zinc oxide are Tin oxide, titanium oxide, zirconium oxide and zinc oxide.
- the additional metal oxide is an oxide other than tin oxide.
- the metallic tin is present in the coating in combination with titanium oxide as an additional metal oxide.
- the tin-containing coating may also contain other simple or complex metal oxides, for example ilmenite or pseudobrookite.
- the pigments of the invention may be provided with an additional organic coating.
- additional organic coatings can be found, for example, in EP 0 632 109, US Pat. No. 5,759,255, DE 43 17 019, DE 39 29 423, DE 32 35 017, EP 0 492 223, EP 0 342 533, EP 0 268 918, EP 0 141 174 EP 0 764 191, WO 98/13426 or EP 0 465 805, the disclosure of which is incorporated herein by reference.
- Pigments containing an organic coating for example of organosilanes or organotitanates or organozirconates, in addition to the already mentioned optical properties, additionally exhibit increased stability to weather influences, such as moisture and light, which is of particular interest for industrial coatings and in the automotive sector.
- the stabilization can be improved by inorganic components of the additional coating.
- the respective proportions for the additional stabilizing coating should be selected so that the optical Properties of the interference pigments of the invention are not significantly affected.
- the pigments of the invention are obtainable by reacting a substrate coated with a tin dioxide-containing and optionally additionally containing at least one further metal oxide coating in a reducing gas mixture of nitrogen and hydrogen to form metallic tin. This makes it possible to provide the coating containing metallic tin and additionally at least one metal oxide.
- at least one further metal oxide is additionally present in the tin dioxide-containing coating.
- a substrate coated with a coating containing a tin dioxide-containing and optionally additionally at least one further metal oxide is reacted in a reducing gas mixture of nitrogen and hydrogen to form metallic tin.
- a reducing gas mixture of nitrogen and hydrogen to form metallic tin.
- Tin dioxide-containing coatings with optionally additionally at least one further metal oxide can be prepared in a manner known to the person skilled in the art, for example by precipitation from corresponding aqueous solutions containing a tin salt or a salt corresponding to the additional metal oxide to be deposited. The precipitations can also be carried out in a water / solvent mixture.
- the tin dioxide-containing and optionally additionally at least one further metal oxide-containing coating is preferably present in the form of separate layers of tin dioxide and at least one further metal oxide, the layer of at least one further metal oxide being particularly preferably applied to the layer of tin dioxide.
- titanium dioxide is preferably used as further metal oxide.
- Pigments of this structure as a precursor for the pigments according to the invention are known. These are effect pigments in which the tin dioxide layer usually serves to rutile the subsequent titanium dioxide layer. When these pigments are used in the process according to the invention, the tin dioxide layer thus fulfills two functions. On the one hand it provides for the rutilization of the subsequently applied titanium dioxide layer, on the other hand, when using the method according to the invention, metallic tin is formed from the applied tin dioxide by reduction.
- an aqueous solution of an inorganic titanium salt is added slowly to a heated to about 50-100 0 C, especially 70-80 0 C suspension, optionally already pre-coated, substrates and the pH by simultaneous addition of a base at 0.5 to 5, in particular about 1.5 to 2.5, kept largely constant.
- a base at 0.5 to 5, in particular about 1.5 to 2.5, kept largely constant.
- This process is also referred to as a titration method and has the peculiarity that there is no excess of titanium salt, but only an amount is provided per unit time, as required for a uniform coating with the hydrated TiO 2 and also from the surface of the coating substrate can be added. In the solution, therefore, there are no hydrated titanium dioxide particles which are not deposited on the surface to be coated.
- the reducing gas mixture of nitrogen and hydrogen to be used for the reaction has a content of hydrogen in the range from 2.5 to 25% by volume, in particular from 4 to 10% by volume, and very particularly preferably from 5 to 8% by volume.
- the reduction of the tin dioxide-containing and at least one further metal oxide-containing coating is carried out at temperatures of 500 to 1200 ° C, preferably from 600 to 1000 0 C and particularly preferably from 700 to 900 0 C.
- the annealing time is 15-240 minutes, preferably 30 -120 minutes and especially 30-90 minutes.
- an organic coating can be applied in an inventive method also in addition as an outer layer.
- examples of such coating methods can be found inter alia in EP 0 632 109, US Pat. No. 5,759,255, DE 43 17 019, DE 39 29 423, DE 32 35 017, EP 0 492 223, EP 0 342 533, EP 0 268 918, EP 0 141 174, EP 0 764 191, WO 98/13426 or EP 0 465 805.
- Examples of organic coatings and the associated advantages have already been described in advance in the construction of the pigments of the invention.
- the process step of applying the organic coating can be connected directly to the other steps of the method according to the invention.
- the substances applied here include only a proportion by weight of 0.1 to 5 wt.%, Preferably 0.5 to 3 wt.%, Of the total pigment.
- the interference pigments of the invention are versatile and can be used in many areas. Accordingly, the interference pigments of the invention are versatile and can be used in many areas. Accordingly, the interference pigments of the invention are versatile and can be used in many areas. Accordingly, the interference pigments of the invention are versatile and can be used in many areas. Accordingly, the interference pigments of the invention are versatile and can be used in many areas. Accordingly, the interference pigments of the invention are versatile and can be used in many areas. Accordingly, the
- the present invention also relates to the use of the pigments of the invention in cosmetics, paints, plastics, films, security printing, in security features in documents and ID cards, in seed coloring, in food coloring or in drug coatings, in laser marking and in the preparation of pigment preparations and dry preparations.
- the interference pigments of the invention are particularly suitable for products and formulations of decorative cosmetics, such as. Nail polishes, coloring powders,
- interference pigments according to the invention in the formulations can also be combined with any type of cosmetic raw materials and excipients. These include u. a. Oils, fats, waxes, film formers, preservatives and general application properties determining auxiliaries, such. As thickeners and rheological additives such as bentonites, hectorites, silica, Ca silicates, gelatin, high molecular weight carbohydrates and / or surface-active aids, etc.
- the invention containing interference pigments formulations may belong to the lipophilic, hydrophilic or hydrophobic type.
- the particles according to the invention can each contain only one of the two phases or can also be distributed over both phases.
- the pH values of the aqueous formulations may be between 1 and 14, preferably between 2 and 11 and more preferably between 5 and 8.
- concentrations of the interference pigments according to the invention There are no limits in the formulation. Depending on the application, they can range from 0.001 (rinse-off products, eg shower gels) to 99% (eg glossy effect items for special applications).
- the interference pigments according to the invention can furthermore also be combined with cosmetic active ingredients. Suitable agents are, for.
- UVA / BC protection filters eg, OMC, B3, MBC
- anti-aging agents eg, vitamins A, C, E, etc.
- self-tanner eg DHA, erythrolose, etc.
- other cosmetic active ingredients such as Bisabolol, LPO, ectoine, emblica, allantoin, bioflavanoids and their derivatives.
- the interference pigments in paints and paints all known in the art application areas are possible, such.
- powder coatings automotive coatings, inks for gravure, offset, screen or flexographic printing and for coatings in outdoor applications.
- the paints and paints can be, for example, radiation-curing, physically drying or chemically curing.
- a plurality of binders e.g.
- the paints may be powder paints or water- or solvent-based paints, the selection of the paint components the
- Common polymeric binders for powder coatings are, for example, polyesters, epoxies, polyurethanes, acrylates or mixtures thereof.
- the interference pigments of the invention can be used in films and plastics, such. B. in agricultural films, infrared-reflective films and discs, gift wrap, Plastic containers and moldings for all known in the art applications. Suitable plastics are all common plastics for the incorporation of the interference pigments according to the invention, for. As thermosets or thermoplastics. The description of the application possibilities and the usable plastics,
- interference pigments according to the invention are also suitable for use in security printing and security-relevant features for z.
- the interference pigments can be used for coloring seeds and other starting materials, moreover, in the food sector for the pigmentation of foods.
- the interference pigments of the invention are also used.
- thermoplastics for the laser marking using the interference pigments according to the invention, it is possible to use all known thermoplastics, as described, for example, in Ullmann, Vol. 15, p. 457 et seq., Verlag VCH.
- Suitable plastics include polyethylene, polypropylene, polyamides, polyesters, polyester esters, polyether esters, polyphenylene ethers, polyacetal, polybutylene terephthalate, polymethyl acrylate, polyvinyl acetate, polystyrene, acrylonitrile-butadiene-styrene, acrylonitrile-styrene-acrylic esters, polycarbonate, polyethersulfones, polyether ketones and their copolymers and / or mixtures.
- the incorporation of the interference pigments of the invention into the thermoplastic material takes place by mixing the plastic granules with the interference pigment and then deforming them under the effect of heat.
- plastic granules may be admixed with adhesives known to the person skilled in the art, organic polymer-compatible solvents, stabilizers and / or surfactants which are temperature-stable under the working conditions.
- the preparation of the pigmented plastic granules is usually carried out so that presented in a suitable mixer, the plastic granules, wetted with any additives and then the interference pigment is added and mixed.
- the mixture thus obtained can then be processed directly in an extruder or an injection molding machine. Subsequently, the marking takes place with suitable radiation.
- High-energy radiation is preferably used in the marking, generally in the wavelength range from 157 to 10600 nm, in particular in the range from 300 to 10600 nm.
- CO 2 laser (10600 nm)
- Nd: YAG laser (1064 or 532 nm)
- pulsed UV lasers excimer lasers
- the excimer lasers have the following wavelengths: F 2 excimer laser (157 nm), ArF excimer laser (193 nm), KrCl excimer laser (222 nm), KrF excimer laser (248 nm), XeCl excimer laser (308 nm), XeF- Excimer laser (351 nm), frequency multiplied Nd: YAG lasers with wavelengths of 355 nm (frequency tripled) or 265 nm (frequency quadrupled). Particular preference is given to using Nd: YAG lasers (1064 or 532 nm) and CO 2 lasers.
- the energy densities of the lasers used are generally in the range from 0.3 mJ / cm 2 to 50 J / cm 2 , preferably 0.3 mJ / cm 2 to 10 J / cm 2 .
- the labeling with the laser takes place in such a way that the sample body is brought into the beam path of a pulsed laser, preferably a CO 2 or Nd: YAG laser. Furthermore, a label with an excimer laser, z. B. a mask technique possible. However, too with other conventional types of lasers having a wavelength in a high absorption region of the laser light absorbing substance used, to achieve the desired results.
- the mark obtained is determined by the irradiation time (or pulse number in the case of pulse lasers) and the irradiation power of the laser and of the laser
- Plastic system or paint system determined.
- the power of the laser used depends on the particular application and can be determined in individual cases by the skilled person readily.
- the pulse frequency is generally in the range of 1 to 30 kHz.
- Corresponding lasers which can be used in the process according to the invention are commercially available.
- Laser marking can be done in all the above-mentioned plastics.
- the plastics pigmented in this way can be used as moldings in the electrical, electronics and automotive industries.
- Another important field of application for laser marking is identification cards and plastic brands for the individual identification of animals.
- the proportion of interference pigments in the plastic in the case of laser marking in the applications 0.01 to 10 wt .-%, preferably 0.05 to 5 wt .-% and in particular 0.1 to 3 wt .-%.
- the markings are characterized by the fact that they are wipe and scratch resistant, stable in subsequent sterilization processes and hygienically pure in the marking process can be applied.
- the interference pigments according to the invention are also suitable for use in the abovementioned fields of application in blends with all known organic or inorganic dyes and / or pigments.
- Organic pigments and dyes are, for example, monoazo pigments, disazo pigments, polycyclic ones
- Pigments, cationic, anionic or nonionic dyes are, for example, white pigments, colored pigments, black pigments or effect pigments.
- suitable effect pigments are metal effect pigments, pearlescent pigments or interference pigments, which as a rule are based on mono- or multi-coated platelets based on mica, glass, Al 2 O 3 , Fe 2 O 3 , SiO 2 , etc. Examples of structures and special properties of the pigments mentioned can be found, for example, in RD 471001 or RD 472005, the disclosure of which is hereby incorporated by reference in the present invention.
- luminescent dyes and / or pigments as well as holographic pigments or LCPs (liquid crystal polymers) are suitable as further colorants for blending with the pigments according to the invention.
- the pigments according to the invention can be mixed in any ratio with commercially available pigments and fillers.
- the interference pigments according to the invention are furthermore suitable for the preparation of flowable pigment preparations and dry preparations containing one or more particles according to the invention, binders and optionally one or more additives.
- Dry preparations are also to be understood as preparations which contain 0 to 8% by weight, preferably 2 to 8% by weight, in particular 3 to 6% by weight, of water and / or of a solvent or solvent mixture.
- the dry preparations are preferably in the form of pellets, granules, chips, sausages or briquettes and have particle sizes of 0.2 to 80 mm.
- the dry preparations are used in particular in the production of printing inks and in cosmetic formulations.
- Example 1 100 g of mica having a particle size of 10-60 ⁇ m are heated to 75 ° C. with stirring in 1.9 l of demineralized water. With a 5 g hydrochloric acid, the pH of the suspension is adjusted to 1.8. This is followed by the addition of a tin tetrachloride solution (from 3 g SnCU ' 5 H 2 O and 10 ml of concentrated hydrochloric acid in 90 ml demineralized water), the pH is kept constant by the simultaneous dropwise addition of a 32% sodium hydroxide solution.
- a tin tetrachloride solution from 3 g SnCU ' 5 H 2 O and 10 ml of concentrated hydrochloric acid in 90 ml demineralized water
- Comparative Example (according to DE 198 43 014): 100 g of mica having a particle size of 10-60 ⁇ m are heated to 75 ° C. in 2 l of demineralized water with stirring. With a 5 g hydrochloric acid, the pH of the suspension is adjusted to 1.8. This is followed by the addition of a Zinntetrachloridates (from 3 g of SnCl 4 ⁇ 5 H 2 O and 10 ml of concentrated hydrochloric acid in 90 ml of demineralized water), the pH by simultaneous dropwise addition of a 32% Sodium hydroxide solution is kept constant.
- a Zinntetrachloridates from 3 g of SnCl 4 ⁇ 5 H 2 O and 10 ml of concentrated hydrochloric acid in 90 ml of demineralized water
- PP-HD Stamylan PPH 10 of DSM
- Example 1 Addition of 0.1 wt .-% of the pigment of Example 1 processed by injection molding.
- the resulting molded article (plate) is then labeled with an SHT-Nd: YAG laser. With a pulse frequency of 2.5 kHz and a writing speed of 300 mm / s, the plates show a black, high-contrast and abrasion-resistant lettering. As the energy density increases, the lettering becomes increasingly darker.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Inorganic Chemistry (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paints Or Removers (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510030243 DE102005030243A1 (de) | 2005-06-29 | 2005-06-29 | Semitransparente Zinn-haltige Interferenzpigmente |
PCT/EP2006/005565 WO2007000232A1 (de) | 2005-06-29 | 2006-06-09 | Semitransparente zinn-haltige interferenzpigmente |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1896545A1 true EP1896545A1 (de) | 2008-03-12 |
Family
ID=36763240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06762003A Withdrawn EP1896545A1 (de) | 2005-06-29 | 2006-06-09 | Semitransparente zinn-haltige interferenzpigmente |
Country Status (6)
Country | Link |
---|---|
US (1) | US7708823B2 (de) |
EP (1) | EP1896545A1 (de) |
JP (1) | JP2008546901A (de) |
CN (1) | CN101213262B (de) |
DE (1) | DE102005030243A1 (de) |
WO (1) | WO2007000232A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8337609B2 (en) * | 2009-12-01 | 2012-12-25 | Silberline Manufacturing Co., Inc. | Black pearlescent pigment with a metal layer |
US9365450B2 (en) * | 2012-12-27 | 2016-06-14 | Intermolecular, Inc. | Base-layer consisting of two materials layer with extreme high/low index in low-e coating to improve the neutral color and transmittance performance |
US9168209B2 (en) | 2013-03-13 | 2015-10-27 | Johnson & Johnson Consumer Inc. | Pigmented skin-care compositions |
US9320687B2 (en) | 2013-03-13 | 2016-04-26 | Johnson & Johnson Consumer Inc. | Pigmented skin-care compositions |
US9168394B2 (en) | 2013-03-13 | 2015-10-27 | Johnson & Johnson Consumer Inc. | Pigmented skin-care compositions |
US9168393B2 (en) | 2013-03-13 | 2015-10-27 | Johnson & Johnson Consumer Inc. | Pigmented skin-care compositions |
JP6201841B2 (ja) * | 2014-03-19 | 2017-09-27 | 三菱マテリアル株式会社 | 熱線遮蔽材の製造方法 |
JPWO2016194902A1 (ja) * | 2015-06-01 | 2018-03-22 | 日本板硝子株式会社 | 干渉顔料、ならびにこれを含む化粧料、塗料、インク、および樹脂組成物 |
CN105778570B (zh) * | 2016-03-16 | 2019-04-19 | 浙江凯色丽科技发展有限公司 | 高亮度和高色饱和度超闪型银白珠光颜料及其制备方法 |
US10800924B2 (en) * | 2017-11-27 | 2020-10-13 | Cathy Cowan | Toy bubble forming composition containing glitter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4038099A (en) * | 1971-08-30 | 1977-07-26 | The Mearl Corporation | Rutile-coated mica nacreous pigments and process for the preparation thereof |
US4086100A (en) * | 1975-05-22 | 1978-04-25 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Rutile-containing lustrous pigments |
JPS6060163A (ja) * | 1983-09-14 | 1985-04-06 | Shiseido Co Ltd | チタン化合物で被覆された雲母 |
US5116664A (en) * | 1988-02-09 | 1992-05-26 | Shiseido Company Ltd. | Titanium-mica composite material |
JP2727732B2 (ja) * | 1990-04-05 | 1998-03-18 | トヨタ自動車株式会社 | 顔料の製造方法 |
US5308394A (en) * | 1990-04-05 | 1994-05-03 | Toyota Jidosha Kabushiki Kaisha | Pigment and process for producing the same |
DE19522267A1 (de) * | 1995-06-20 | 1997-01-02 | Merck Patent Gmbh | Zinnhaltige Graupigmente |
DE10331903A1 (de) | 2002-08-20 | 2004-02-26 | Merck Patent Gmbh | Deckendes Silberpigment |
DE102005030244A1 (de) * | 2005-06-29 | 2007-01-04 | Merck Patent Gmbh | Mischung aus Interferenzpigmenten |
-
2005
- 2005-06-29 DE DE200510030243 patent/DE102005030243A1/de not_active Withdrawn
-
2006
- 2006-06-09 US US11/994,210 patent/US7708823B2/en not_active Expired - Fee Related
- 2006-06-09 EP EP06762003A patent/EP1896545A1/de not_active Withdrawn
- 2006-06-09 JP JP2008519815A patent/JP2008546901A/ja active Pending
- 2006-06-09 WO PCT/EP2006/005565 patent/WO2007000232A1/de active Application Filing
- 2006-06-09 CN CN2006800238507A patent/CN101213262B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2007000232A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7708823B2 (en) | 2010-05-04 |
CN101213262B (zh) | 2011-11-30 |
US20080210123A1 (en) | 2008-09-04 |
CN101213262A (zh) | 2008-07-02 |
DE102005030243A1 (de) | 2007-01-11 |
WO2007000232A1 (de) | 2007-01-04 |
JP2008546901A (ja) | 2008-12-25 |
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