EP3999018A1 - Farbige effektpigmente und deren herstellung - Google Patents
Farbige effektpigmente und deren herstellungInfo
- Publication number
- EP3999018A1 EP3999018A1 EP20739308.3A EP20739308A EP3999018A1 EP 3999018 A1 EP3999018 A1 EP 3999018A1 EP 20739308 A EP20739308 A EP 20739308A EP 3999018 A1 EP3999018 A1 EP 3999018A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxide
- layer
- pigments
- metal
- metal oxide
- 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.)
- Ceased
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
- 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
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
-
- 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
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0254—Platelets; Flakes
- A61K8/0258—Layered structure
- A61K8/0266—Characterized by the sequence of layers
-
- 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
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0254—Platelets; Flakes
- A61K8/0258—Layered structure
-
- 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
- A61K8/25—Silicon; Compounds thereof
-
- 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
- A61K8/26—Aluminium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/06—Preparations for styling the hair, e.g. by temporary shaping or colouring
- A61Q5/065—Preparations for temporary colouring the hair, e.g. direct dyes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/10—Preparations for permanently dyeing the hair
-
- 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
-
- 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
- C09C1/0015—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
- C09C1/0051—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating low and high refractive indices, wherein the first coating layer on the core surface has the low refractive index
- C09C1/0075—Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings comprising a stack of coating layers with alternating low and high refractive indices, wherein the first coating layer on the core surface has the low refractive index comprising at least one optically active layer with at least one organic material layer, e.g. liquid crystal polymers
-
- 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
- C09C1/62—Metallic pigments or fillers
- C09C1/64—Aluminium
- C09C1/648—Aluminium treated with inorganic and organic, e.g. polymeric, compounds
-
- 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
- A61K2800/10—General cosmetic use
-
- 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
-
- 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
- A61K2800/60—Particulates further characterized by their structure or composition
- A61K2800/61—Surface treated
- A61K2800/62—Coated
- A61K2800/621—Coated by inorganic compounds
-
- 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
- A61K2800/60—Particulates further characterized by their structure or composition
- A61K2800/65—Characterized by the composition of the particulate/core
- A61K2800/651—The particulate/core comprising inorganic material
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
-
- 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
- C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
- C09C2200/10—Interference pigments characterized by the core material
- C09C2200/1054—Interference pigments characterized by the core material the core consisting of a metal
-
- 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
- C09C2220/00—Methods of preparing the interference pigments
- C09C2220/10—Wet methods, e.g. co-precipitation
- C09C2220/106—Wet methods, e.g. co-precipitation comprising only a drying or calcination step of the finally coated pigment
Definitions
- the present application relates to effect pigments which comprise a substrate platelet and a coating, the coating having at least one layer which comprises a metal oxide and / or metal oxide hydrate.
- the application also describes a process for producing the effect pigments.
- Developer components and coupler components which, under the influence of oxidizing agents such as hydrogen peroxide, form the actual dyes with one another.
- Oxidation dyes are characterized by very long-lasting coloring results.
- color pigments are generally understood to mean insoluble, coloring substances. These are present undissolved in the form of small particles in the coloring formulation and are only deposited on the outside of the hair fibers and / or the skin surface. Therefore, they can usually be removed without residue by a few washes with detergents containing surfactants. Various products of this type are available on the market under the name of hair mascara.
- EP 2168633 B1 deals with the problem of producing long-lasting hair colorations using pigments.
- the document teaches that when using the combination of a pigment, an organic silicon compound, a film-forming polymer and a solvent Produce colorations on hair that are particularly resistant to shampooing.
- Metallic luster pigments or metallic effect pigments are widely used in many areas of technology. They are used, for example, for coloring paints, printing inks, inks, plastics, glasses, ceramic products and preparations for decorative cosmetics such as nail polish. They are characterized above all by their attractive angle-dependent color impression (goniochromy) and their metallic-like sheen.
- effect pigments in particular for hair colorations, which, on the one hand, have a high wash and rub fastness and, on the other hand, do not adversely affect hair properties such as handling and haptics.
- the effect pigments used had a high covering power and could be applied to the hair in thin layers.
- a material to be colored, in particular hair can be colored with a broad spectrum of metallic colors.
- the effect pigments should in particular be suitable for coloring systems that do not require the use of oxidizing agents and / or oxidation dye precursors.
- an effect pigment comprising a) a substrate platelet and b) a coating, the coating having at least one layer which
- the effect pigment has a substrate platelet.
- the substrate platelet preferably has an average thickness of at most 50 nm, preferably less than 30 nm, particularly preferably at most 25 nm, for example at most 20 nm.
- the average thickness of the substrate platelets is at least 1 nm, preferably at least 2.5 nm, particularly preferably at least 5 nm, for example at least 10 nm.
- Preferred ranges for the thickness of the substrate plate are 2.5 to 50 nm, 5 to 50 nm, 10 to 50 nm; 2.5 to 30 nm, 5 to 30 nm, 10 to 30 nm; 2.5 to 25 nm, 5 to 25 nm, 10 to 25 nm, 2.5 to 20 nm, 5 to 20 nm and 10 to 20 nm.
- Each substrate platelet preferably has a thickness that is as uniform as possible.
- the substrate plate is preferably constructed monolithically. Monolithic means in this one
- the substrate platelet is preferably constructed homogeneously, i.e. there is no concentration gradient within the platelet.
- the substrate platelet is not constructed in layers and has no particles or particles distributed therein.
- the size of the substrate platelet can be matched to the particular application, for example the desired effect on a keratinic material.
- the substrate platelets have a mean largest diameter of about 2 to 200 ⁇ m, in particular about 5 to 100 ⁇ m.
- the aspect ratio expressed by the ratio of the mean size to the mean thickness, is at least 80, preferably at least 200, more preferably at least 500, particularly preferably more than 750.
- the mean size of the uncoated substrate platelets is here understood the d50 value of the uncoated substrate platelets. Unless otherwise stated, the d50 value was determined using a Sympatec Helos device with Quixel wet dispersion. For sample preparation, the sample to be examined was predispersed in isopropanol for a period of 3 minutes.
- the substrate platelet can be constructed from any material which can be brought into a platelet shape.
- substrate platelets can be of natural origin, but also synthetically produced.
- Materials from which the substrate platelets can be constructed are, for example, metals and metal alloys, metal oxides, preferably aluminum oxide, inorganic compounds and minerals such as mica and
- the substrate platelets are preferably constructed from a metal or an alloy.
- metals suitable for effect pigments can be considered as the metal.
- metals include iron and steel, and all air and water-resistant (semi) metals such as platinum, tin, zinc, chromium, molybdenum and silicon, and their alloys such as aluminum bronze and brass.
- Preferred metals are aluminum, copper, silver and gold.
- Preferred substrate platelets are
- Substrate platelets made of aluminum can be produced, among other things, by punching out of aluminum foil or using common grinding and atomizing techniques. So are for example
- the substrate platelets can have various shapes. For example, lamellar or lenticular metal flakes or so-called vacuum metallized pigments (VMP) can be used as substrate flakes.
- Lamellar substrate platelets are characterized by an irregularly structured edge and are also referred to as "cornflakes” due to their appearance.
- Lenticular substrate platelets have an essentially regular round edge and are also referred to as "silver dollars" because of their appearance.
- the substrate platelets made of metal or metal alloy can be passivated, for example by anodizing (oxide layer) or chromating.
- the surface properties and / or optical properties of the effect pigment can be changed and the mechanical and chemical resistance of the effect pigments can be increased.
- only the upper and / or lower side of the substrate platelet can be coated, with the side surfaces being cut out.
- the entire surface of the optionally passivated substrate platelets, including the side surfaces, is preferably covered by the layer.
- the substrate platelets are preferably completely encased by the coating.
- the coating can consist of one or more layers. In a preferred embodiment
- the coating has only one layer A.
- the coating has a total of at least two, preferably two or three, layers. It may be preferred for the coating to have two layers A and B, layer B being different from layer A. Layer A is preferably located between layer B and the surface of the substrate wafer. In yet another preferred embodiment, the coating has three layers A, B and C. In this embodiment, layer A is located between layer B and the surface of the substrate platelet, and layer C is located on layer B, which layer is different from layer B below.
- Suitable materials for the layers A and optionally B and C are all substances that can be permanently applied to the substrate platelets.
- the materials should preferably be able to be applied in film form.
- the entire surface is the optionally passivated Substrate platelets, including the side surfaces, are encased by layer A or by layers A and B or by layers A, B and C.
- the metal oxide and / or metal oxide hydrate (i) is selected from the group consisting of silicon (di) oxide, silicon oxide hydrate, aluminum oxide, aluminum oxide hydrate, boron oxide, germanium oxide, manganese oxide, magnesium oxide, iron oxide, cobalt oxide, chromium oxide, titanium dioxide,
- Vanadium oxide, zirconium oxide, tin oxide, zinc oxide and mixtures thereof Vanadium oxide, zirconium oxide, tin oxide, zinc oxide and mixtures thereof.
- the layer A preferably has at least one low refractive index metal oxide and / or metal oxide hydrate.
- Layer A preferably comprises at least 95% by weight of low-refractive-index metal oxide (hydrate).
- Low refractive index materials have a refractive index of at most 1.8, preferably at most 1.6.
- the low refractive index metal oxides which are suitable for layer A include, for example, silicon (di) oxide, silicon oxide hydrate, aluminum oxide, aluminum oxide hydrate, boron oxide, germanium oxide, manganese oxide, magnesium oxide and mixtures thereof, silicon dioxide being preferred.
- the layer A preferably has a thickness of 1 to 100 nm, particularly preferably 5 to 50 nm, particularly preferably 5 to 20 nm.
- Layer B is different from layer A and can include at least one
- High refractive index materials have a refractive index of at least 1.9, preferably at least 2.0 and particularly preferably at least 2.4.
- Layer B preferably comprises at least 95% by weight, particularly preferably at least 99% by weight, of high-index metal oxide (s).
- the layer B contains a (highly refractive) metal oxide, it preferably has a thickness of at least 50 nm.
- the thickness of layer B is preferably not more than 400 nm, particularly preferably at most 300 nm.
- High refractive index metal oxides suitable for layer B are, for example, selectively light-absorbing (ie colored) metal oxides such as iron (III) oxide (a- and y-Fe 2 O 3, red), cobalt (II) oxide (blue), chromium (III) oxide (green) ), Titanium (III) oxide (blue, is usually mixed with titanium oxynitrides and
- Colorless, high-index oxides such as titanium dioxide and / or zirconium oxide are also suitable.
- layer B can contain a selectively absorbing dye, preferably 0.001 to 5% by weight, particularly preferably 0.01 to 1% by weight, based in each case on the total amount of layer B.
- a selectively absorbing dye preferably 0.001 to 5% by weight, particularly preferably 0.01 to 1% by weight, based in each case on the total amount of layer B.
- Organic and inorganic dyes are suitable , which can be stably built into a metal oxide coating.
- dyes have a solubility in water (760 mmHg) at 25 ° C. of more than 0.5 g / L and are therefore not to be regarded as pigments.
- layer B can comprise a metal particle carrier layer with metal particles applied to the surface of the metal particle carrier layer.
- the metal particles directly cover part of the metal particle carrier layer.
- the effect pigment has areas in which there are no metal particles, i.e. areas which are not covered with the metal particles.
- the metal particle carrier layer comprises a metal layer and / or a metal oxide layer.
- the metal particle carrier layer comprises a metal layer and a metal oxide layer, the arrangement of these layers is not limited.
- the metal particle carrier layer comprises at least one metal layer. It is further preferred that the metal layer has an element selected from tin (Sn), palladium (Pd), platinum (Pt) and gold (Au).
- the metal layer can be formed, for example, by adding alkali to a metal salt solution containing the metal.
- the metal particle carrier layer contains a metal oxide layer, this preferably does not include any
- the metal oxide layer preferably contains an oxide of at least one element selected from the group consisting of Mg (magnesium), Sn (tin), Zn (zinc), Co (cobalt), Ni (nickel), Fe (iron), Zr ( Zirconium), Ti (titanium) and Ce (cerium). Particularly preferably contains
- Metal particle carrier layer iii) in the form of a metal oxide layer, a metal oxide of Sn, Zn, Ti and Ce.
- the production of the metal particle carrier layer in the form of a metal oxide layer can take place, for example, by hydrolysis of an alkoxide of a metal, which forms the metal of the metal oxide, in a sol-gel process.
- the thickness of the metal particle carrier layer is preferably not more than 30 nm.
- the metal particles can include at least one element selected from the group consisting of aluminum (Al), titanium (Ti), chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu) , Zinc (Zn), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), tin (Sn), platinum (Pt), gold (Au) and their alloys. It is particularly preferred that the metal particles have at least one element selected from copper (Cu), nickel (Ni) and silver (Ag).
- the average particle diameter of the metal particles is preferably not more than 50 nm, more preferably not more than 30 nm.
- the distance between the metal particles is preferably not more than 10 nm.
- Suitable methods for forming the metal particles are vacuum evaporation, sputtering, chemical vapor deposition (CVD), electroless plating, or the like. Of these methods, electroless plating is particularly preferred.
- the effect pigments have a further layer C, comprising a metal oxide (hydrate), which is different from the layer B below.
- Suitable metal oxides are, for example, silicon (di) oxide, silicon oxide hydrate, aluminum oxide,
- the layer C preferably has a thickness of 10 to 500 nm, particularly preferably 50 to 300 nm.
- the coating of the effect pigment has at least one layer which, in addition to the metal oxide and / or the metal oxide hydrate, also comprises a coloring compound from the group of pigments.
- the at least one layer which comprises (i) a metal oxide and / or metal oxide hydrate and (ii) a coloring compound from the group of pigments, can be layer A, B and / or C. In the event that the coating has only one layer A, the layer A also contains the coloring compound from the group of pigments.
- metal oxide comprises, both layers A and B or only one of the two layers can comprise the coloring compound from the group of pigments.
- Layer A preferably contains the coloring compound from the group of pigments.
- each of layers A, B and C can contain a coloring compound from the group of pigments.
- two of the three layers can be the coloring
- the coloring compound from the group of pigments can be in layers A and B, in layers A and C or in layers B and C. As well only one of the three layers can comprise a coloring compound from the group of pigments.
- the coloring compound from the group of pigments in layer A, B or C can be.
- an effect pigment comprising a
- Coating with layers A, B and C is the coloring compound from the group of pigments in layer A and / or C.
- the coating has layers A, B and C, layers A and C are included
- each of the layers A and C can contain a coloring compound from the group of pigments.
- only one of the layers A and C can contain the coloring compound from the group of pigments.
- the coloring compound from the group of pigments is in layer A and / or C.
- the effect pigment prefferably has a substrate platelet made of aluminum and a layer A comprising silicon dioxide.
- the substrate platelet has a layer A and a layer C
- the effect pigment has a substrate platelet made of aluminum and layers A and C comprising silicon dioxide.
- Pigments in the context of the present invention are understood to mean coloring compounds which at 25 ° C. in water have a solubility of less than 0.5 g / L, preferably less than 0.1 g / L, even more preferably less than 0, 05 g / L.
- the water solubility can for example take place by means of the method described below: 0.5 g of the pigment are in one
- Suitable color pigments can be of inorganic and / or organic origin.
- the effect pigment has at least one coloring compound from the group of inorganic and / or organic pigments.
- Preferred color pigments are selected from synthetic or natural inorganic pigments.
- Inorganic color pigments of natural origin can be made from chalk, ocher, umber, green earth, burnt Terra di Siena or graphite, for example.
- inorganic color pigments black pigments such as B. iron oxide black, colored pigments such. B.
- Ultramarine or iron oxide red and fluorescent or phosphorescent pigments can be used.
- Colored metal oxides, hydroxides and oxide hydrates, mixed-phase pigments, sulfur-containing silicates, silicates, metal sulfides, complex metal cyanides, metal sulfates, metal chromates and / or molybdates are particularly suitable.
- Particularly preferred color pigments are black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and brown iron oxide (CI 77491), manganese violet (CI 77742), ultramarines (sodium aluminum sulfosilicates, CI 77007, Pigment Blue 29), chromium oxide hydrate (CI77289 ), Iron blue (Ferric Ferrocyanide, CI77510) and / or carmine (Cochineal).
- Colored pigments which are also particularly preferred are colored pearlescent pigments. These are usually based on mica and / or mica and can be coated with one or more metal oxides. Mica is one of the layered silicates. The most important representatives of these silicates are muscovite, phlogopite, paragonite, biotite, lepidolite and margarite. To produce the pearlescent pigments in connection with metal oxides, the mica, predominantly muscovite or phlogopite, is mixed with a
- synthetic mica coated with one or more metal oxide (s) can also be used as a pearlescent pigment.
- Particularly preferred pearlescent pigments are based on natural or synthetic mica (mica) and are coated with one or more of the aforementioned metal oxides. The color of the respective pigments can be changed by varying the
- Layer thickness of the metal oxide (s) can be varied.
- pigments based on mica are synthetically produced mica flakes coated with metal oxide, in particular based on synthetic fluorophlogopite (INCI: Synthetic
- the synthetic fluorophlogopite platelets are, for example, with tin oxide,
- the metal oxide layers can also have pigments such as iron (III) hexacyanidoferrate (II / III) or carmine red.
- Such mica pigments are available, for example, under the name SYNCRYSTAL from Eckart.
- a preferred effect pigment is characterized in that it contains at least one coloring compound from the group of pigments, which is selected from the group of colored metal oxides, metal hydroxides, metal oxide hydrates, silicates, metal sulfides, complex metal cyanides, metal sulfates, bronze pigments and / or colored Pigments based on mica or mica coated with at least one metal oxide and / or a metal oxychloride.
- the effect pigment is characterized in that it contains at least one coloring compound from the group of pigments, which is selected from pigments based on mica or mica, which are mixed with one or more metal oxides from the group of titanium dioxide (CI 77891) , black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and / or brown iron oxide (CI 77491, CI 77499), manganese violet (CI 77742), ultramarines (sodium aluminum sulfosilicates, CI 77007, pigment blue 29), chromium oxide hydrate (CI 77289), chromium oxide (CI 77288) and / or iron blue (Ferric Ferrocyanide, CI 77510) are coated.
- the group of pigments which is selected from pigments based on mica or mica, which are mixed with one or more metal oxides from the group of titanium dioxide (CI 77891) , black iron oxide (CI 77499), yellow iron oxide (CI 77492), red and / or brown iron
- borosilicates are based on metal oxide-coated platelet-shaped borosilicates. These are coated, for example, with tin oxide, iron oxide (s), silicon dioxide and / or titanium dioxide. Such borosilicate-based pigments are available, for example, under the name MIRAGE from Eckart or Reflecks from BASF SE.
- Colorona® Very particularly preferred pigments with the trade name Colorona® are, for example: Colorona Copper, Merck, MICA, CI 77491 (IRON OXIDES)
- particularly preferred pigments with the trade name Unipure® are, for example: Unipure Red LC 381 EM, Sensient CI 77491 (Iran Oxides), Silica
- particularly preferred pigments with the trade name Unipure® are, for example: Unipure Red LC 381 EM, Sensient CI 77491 (Iran Oxides), Silica
- the effect pigment can also contain one or more coloring compounds from the group of organic pigments.
- the organic pigments are correspondingly insoluble, organic dyes or color lakes, for example from the group of nitroso, nitro, azo, xanthene, anthraquinone, isoindolinone, isoindoline, quinacridone, perinone, perylene , Diketopyrrolopyorrol-, indigo, thioindido, dioxazine, and / or triarylmethane compounds can be selected.
- organic pigments are, for example, carmine, quinacridone,
- Phthalocyanine, Sorgho blue pigments with the color index numbers CI 42090, CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the color index numbers CI 11680, CI 1 1710, CI 15985, CI 19140, CI 20040, CI 21 100, CI 21108, CI 47000, CI 47005, green pigments with the color index numbers CI 61565, CI 61570, CI 74260, orange pigments with the color index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the color index numbers CI 12085, CI 12120, CI 12370, CI 12420, CI 12490, CI 14700, CI 15525, CI 15580, CI 15620, CI 15630, CI 15800, CI 15850, CI 15865,
- the effect pigment is characterized in that it contains a coloring compound from the group of organic pigments which is selected from the group consisting of carmine, quinacridone, phthalocyanine, sorghum, blue pigments with the color index numbers CI 42090 , CI 69800, CI 69825, CI 73000, CI 74100, CI 74160, yellow pigments with the color index numbers CI 11680, CI 11710, CI 15985, CI 19140, CI 20040, CI 21100, CI 21108, CI 47000, CI 47005, green pigments with the color index numbers CI 61565, CI 61570, CI 74260, orange pigments with the color index numbers CI 11725, CI 15510, CI 45370, CI 71105, red pigments with the color index numbers CI 12085, CI 12120, CI 12370 , CI 12420, CI 12490, CI 14700,
- the organic pigment can also be a colored lacquer.
- the term “colored varnish” is understood to mean particles which comprise a layer of absorbed dyes, the unit of particles and dyestuff being included in the above.
- the particles can be, for example, inorganic substrates, which can be aluminum, silica, calcium borosilicate, calcium aluminum borosilicate or also aluminum.
- the alizarin color varnish for example, can be used as the color varnish.
- suitable coloring compounds from the group of pigments are inorganic and / or organic pigments which have been modified with a polymer.
- the polymer modification can, for example, increase the affinity of the pigments for the respective material of the at least one layer.
- the particle size of the coloring compound used depends in particular on the layer in which the coloring layer is present.
- the coloring compound preferably has a particle size Dgo which is smaller than the layer thickness of the at least one layer.
- the particle size D95 of the coloring compound is more preferably smaller than the layer thickness of the at least one layer.
- the particle size D99 of the coloring compound is even more preferably smaller than the layer thickness of the at least one layer. That is very particularly preferred
- Particle size D100 of the coloring compound smaller than the layer thickness of the at least one layer can be determined, for example, using dynamic light scattering (DLS) or static light scattering (SLS).
- D90 means that 90% of the particles of the coloring compound are smaller than the layer thickness of the at least one layer.
- D95 means that 95% of the particles of the coloring compound are smaller than the layer thickness of the at least one layer, etc.
- the amount of coloring compound from the group of pigments in the layer, comprising
- Layers A and C serve in particular as protection against corrosion and also for chemical and physical stabilization.
- Layers A and C particularly preferably contain silicon dioxide or aluminum oxide, which are applied by the sol-gel process.
- a further subject of the application is a method for producing a
- Effect pigments comprising a) a substrate platelet and b) a coating, the coating having at least one layer which
- step (ß) Coating the substrate platelet suspended in step (a) with a layer which comprises (i) a metal oxide and / or metal oxide hydrate and (ii) a coloring compound from the group of pigments, using a sol-gel process. It is preferred that a metal alkoxide and a coloring compound from the group of pigments are used in the sol-gel process.
- the metal alkoxide used in the sol-gel process is selected from the group consisting of tetramethyl orthosilicate, tetraethyl orthosilicate, tetraisopropyl orthosilicate and mixtures thereof, tetraethyl orthosilicate being preferred.
- the substrate platelet used in step (a) has already been coated with at least one layer of a metal oxide and / or metal oxide hydrate.
- An exemplary manufacturing process comprises dispersing the uncoated substrate flakes or the substrate flakes already coated with layer A or with layers A and B and the coloring compound from the group of pigments in a solution of a metal alkoxide such as tetraethyl orthosilicate or aluminum triisopropoxide (usually in a solution of organic solvent or a mixture of organic solvent and water with at least 50% by weight organic solvent such as a C1 to C4 alcohol), and adding a weak base or acid to hydrolyze the metal alkoxide, thereby forming a film comprising the metal oxide and the coloring compound the group of pigments on the surface of the (coated) substrate platelets.
- a metal alkoxide such as tetraethyl orthosilicate or aluminum triisopropoxide
- Layer B can be produced, for example, by hydrolytic decomposition of one or more organic metal compounds and / or by precipitation of one or more dissolved metal salts and, if necessary, subsequent aftertreatment (for example, transferring a hydroxide-containing layer formed into the oxide layers by annealing).
- each of the layers A, B and / or C can contain a mixture of two or more metal oxides (hydrate) s, each of the layers preferably comprises only one metal oxide (hydrate).
- the effect pigments based on coated substrate platelets preferably have a thickness of 70 to 500 nm, particularly preferably 100 to 400 nm, particularly preferably 150 to 320 nm, for example 180 to 290 nm.
- the small thickness of the coated substrate platelets is achieved in particular in that the thickness of the uncoated substrate platelets is small, but also in that the thicknesses of the coatings A and, if present, C are set to the smallest possible value.
- layer A, B or C is additionally modified by organic compounds such as silanes, phosphoric acid esters, titanates, borates or carboxylic acids.
- the organic compounds are bound to the surface of the outermost layer A, B or C, preferably containing metal oxide.
- the outermost layer denotes the layer that is spatially furthest from that
- the organic compounds are preferably functional silane compounds which can bind to the layer A, B or C containing metal oxide. These can be either mono- or bifunctional compounds. Examples of bifunctional organic compounds are methacryloxypropenyltrimethoxysilane, 3- methacryloxypropyltrimethoxysilane, 3-acryloxypropyltrimethoxysilane, 2-acryloxyethyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane, 3-acryloxypropyltrimethoxysilane, 2-methacryloxyethyltriethoxysilane, 2-acryloxyethyltriethoxysilane, 3-methacryloxypropyl tris (methoxyethoxy) silane, 3- methacryloxypropyltris (butoxyethoxy) silane, 3-methacryloxypropyltris (propoxy) silane, 3- methacryloxypropyltris (butoxy) silane, 3-acryloxypropyltris (propoxy
- Vinyltriethoxysilane vinylethyldichlorosilane, vinylmethyldiacetoxysilane, vinylmethyldichlorosilane,
- Vinylmethyldiethoxysilane vinyltriacetoxysilane, vinyltrichlorosilane, phenylvinyldiethoxysilane, or
- Phenylallyldichlorosilane Furthermore, a modification with a monofunctional silane, in particular an alkylsilane or arylsilane, can take place. This has only one functional group which can covalently bond to the surface of the effect pigment (i.e. to the outermost metal oxide-containing layer) or, if it is not completely covered, to the metal surface.
- hydrocarbon residue of the silane points away from the effect pigment.
- a different degree of hydrophobization of the silane is possible.
- Examples of such silanes are hexadecyltrimethoxysilane, propyltrimethoxysilane, etc.
- Effect pigments based on silicon dioxide-coated are particularly preferred.
- Aluminum substrate platelets modified with a monofunctional silane surface. Octyltrimethoxysilane, octyltriethoxysilane, and hecadecyltrimethoxysilane are particularly preferred
- Hecadecyltriethoxysilane The changed surface properties / hydrophobicity can improve adhesion, abrasion resistance and alignment in the application.
- a silane with at least one basic group is also used in the sol-gel process.
- the sol-gel process for producing layers A or C comprises dispersing the uncoated substrate flakes or substrate flakes already coated with layers A and B, the coloring compound from the group of pigments and a silane with at least one basic group in a solution of a metal alkoxide.
- the silanes are preferably silanes with one, two or three silicon atoms, with one or more hydroxyl groups or hydrolyzable groups per molecule and with at least one basic group.
- the basic group can be, for example, an amino group, an alkylamino group or a dialkylamino group, which is preferably connected to a silicon atom via a linker.
- the silane with at least one basic group is preferably selected from the group consisting of
- (3-aminopropyl) triethoxysilane and / or (3-aminopropyl) trimethoxysilane are preferably used.
- the metal alkoxide used in the sol-gel process is preferably selected from the group consisting of tetramethyl orthosilicate, tetraethyl orthosilicate, tetraisopropyl orthosilicate and mixtures thereof. Tetraethyl orthosilicate is preferably used. Alternatively or in addition to the
- alkyltrialkoxysilanes can be used in the sol-gel process to produce layers A and / or C. Particularly preferably, alkyltrialkoxysilanes can be used in addition or as an alternative to a tetraalkoxysilane in the sol-gel process for producing a layer which comprises (i) silicon dioxide as metal oxide and / or metal oxide hydrate and (ii) a coloring compound from the group of pigments.
- Suitable alkyltrialkoxysilanes include, for example, methyltrimethoxysilane, methyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, hexyltrimethoxysilane, hexyltriethoxysilane, octyltrimethoxysilane, octyltriethoxysilane, dodecyltrimethoxysilane, or octyldoxecyl silane, or octyldoxecyltrimethoxysilane, or octyldoxecyl silane, or octyldoxecyl silane, or octyldoxecyl silane, or octyltriethoxecyl silane
- the colored silicon dioxide layer makes up around 40% by weight, based on the total weight of the effect pigment.
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- General Health & Medical Sciences (AREA)
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- Birds (AREA)
- Epidemiology (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019210687.0A DE102019210687A1 (de) | 2019-07-19 | 2019-07-19 | Farbige Effektpigmente und deren Herstellung |
| PCT/EP2020/068961 WO2021013513A1 (de) | 2019-07-19 | 2020-07-06 | Farbige effektpigmente und deren herstellung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3999018A1 true EP3999018A1 (de) | 2022-05-25 |
Family
ID=71575362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20739308.3A Ceased EP3999018A1 (de) | 2019-07-19 | 2020-07-06 | Farbige effektpigmente und deren herstellung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20220273531A1 (de) |
| EP (1) | EP3999018A1 (de) |
| JP (1) | JP2022541050A (de) |
| CN (1) | CN114207051A (de) |
| DE (1) | DE102019210687A1 (de) |
| WO (1) | WO2021013513A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071772A2 (en) * | 2006-12-13 | 2008-06-19 | L'oreal | Use of coloured or fluorescent hybrid particles for treating keratin fibres |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19501307C2 (de) * | 1995-01-18 | 1999-11-11 | Eckart Standard Bronzepulver | Farbige Aluminiumpigmente, Verfahren zu deren Herstellung sowie deren Verwendung |
| DE19905427A1 (de) * | 1999-02-10 | 2000-08-17 | Merck Patent Gmbh | Farbiges Interferenzpigment |
| DE102005050094A1 (de) * | 2005-10-18 | 2007-04-19 | Identif Gmbh | Farbiges Effektpigment mit Schicht aus diskreten Metallteilchen, Verfahren zu dessen Herstellung und dessen Verwendung |
| DE102006006716A1 (de) * | 2006-02-13 | 2007-08-16 | Eckart Gmbh & Co. Kg | Kosmetikum enthaltend farbige Effektpigmente und Verfahren zu dessen Herstellung |
| US20090054534A1 (en) * | 2006-04-07 | 2009-02-26 | Nippon Sheet Glass Company, Limited | Bright Pigment, Method for Production of the Pigment, and Cosmetic, Coating, Ink or Resin Composition Comprising the Pigment |
| DE102006021784A1 (de) * | 2006-05-09 | 2007-11-15 | Merck Patent Gmbh | Effektpigmente und deren Verwendung in der Kosmetik und im Lebensmittel- und Pharmabereich |
| JP4765768B2 (ja) * | 2006-05-24 | 2011-09-07 | コニカミノルタビジネステクノロジーズ株式会社 | 画像形成方法 |
| DE102007041027A1 (de) * | 2007-08-29 | 2009-03-05 | Eckart Gmbh | Effektpigmente auf Basis von aus anorganisch-organischen Mischphasen gebildeten Substraten, deren Herstellung und Verwendung |
| EP2168633B1 (de) | 2008-09-30 | 2016-03-30 | L'Oréal | Kosmetischen Zusammensetzung enthaltend organische Silicium-Derivate mit einer basischen Gruppe als Vorprodukt vor einer Zusammensetzung enthaltend ein filmbildneres hydrophobisches Polymer, ein Pigment und ein Lösungsmittel |
| CN102741358B (zh) * | 2010-02-04 | 2015-11-25 | 巴斯夫欧洲公司 | 具有改进闪光效应的颜料组合物 |
| DE102011055072A1 (de) * | 2011-11-04 | 2013-05-08 | Eckart Gmbh | Beschichtete, nasschemisch oxidierte Aluminiumeffektpigmente, Verfahren zu deren Herstellung, Beschichtungsmittel und beschichteter Gegenstand |
| KR101925175B1 (ko) * | 2012-09-14 | 2018-12-04 | 도요 알루미늄 가부시키가이샤 | 착색 금속 안료 및 그 제조 방법 |
| CN103849179A (zh) * | 2012-11-29 | 2014-06-11 | 陈永煌 | 一种耐高温彩色铝颜料 |
| FR3001216B1 (fr) * | 2013-01-21 | 2015-02-27 | Oreal | Composition cosmetique ou dermatologique comprenant une merocyanine, une phase huileuse et un mono-alcanol en c1-c4 |
| EP2832801A1 (de) * | 2013-08-02 | 2015-02-04 | Schlenk Metallic Pigments GmbH | Metallische Glanzpigmente basierend auf Substratplättchen mit einer Dicke von 1-50 nm |
| WO2016012074A1 (en) * | 2014-07-25 | 2016-01-28 | Merck Patent Gmbh | Colored effect pigments |
| JP6156343B2 (ja) * | 2014-12-03 | 2017-07-05 | マツダ株式会社 | 積層塗膜及び塗装物 |
| DE102017002554A1 (de) * | 2017-03-17 | 2018-09-20 | Merck Patent Gmbh | Effektpigmente |
| EP3613811A1 (de) * | 2018-08-22 | 2020-02-26 | Schlenk Metallic Pigments GmbH | Champagner-farbton metalleffektpigmente |
| DE102019203669A1 (de) * | 2019-03-19 | 2020-09-24 | Henkel Ag & Co. Kgaa | Verfahren zum Färben von keratinischem Material, umfassend die Anwendung von einer siliciumorganischen Verbindung, eines Effektpigments und eines filmbildenden Polymers I |
| DE102019210689A1 (de) * | 2019-07-19 | 2021-01-21 | Henkel Ag & Co. Kgaa | Verfahren zum Färben von keratinischem Material, umfassend die Anwendung von einer siliciumorganischen Verbindung, eines beschichteten Effektpigments und eines filmbildenden Polymers II |
| DE102019210692A1 (de) * | 2019-07-19 | 2021-01-21 | Henkel Ag & Co. Kgaa | Verfahren zum Färben von keratinischem Material, umfassend die Anwendung von einer siliciumorganischen Verbindung, eines farbigen Effektpigments und eines filmbildenden Polymers III |
| DE102019210686A1 (de) * | 2019-07-19 | 2021-01-21 | Henkel Ag & Co. Kgaa | Verfahren zum Färben von keratinischem Material, umfassend die Anwendung von einer siliciumorganischen Verbindung, eines farbigen Effektpigments und eines filmbildenden Polymers I |
-
2019
- 2019-07-19 DE DE102019210687.0A patent/DE102019210687A1/de not_active Withdrawn
-
2020
- 2020-07-06 JP JP2022503530A patent/JP2022541050A/ja active Pending
- 2020-07-06 WO PCT/EP2020/068961 patent/WO2021013513A1/de not_active Ceased
- 2020-07-06 CN CN202080051644.7A patent/CN114207051A/zh active Pending
- 2020-07-06 US US17/628,474 patent/US20220273531A1/en not_active Abandoned
- 2020-07-06 EP EP20739308.3A patent/EP3999018A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008071772A2 (en) * | 2006-12-13 | 2008-06-19 | L'oreal | Use of coloured or fluorescent hybrid particles for treating keratin fibres |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022541050A (ja) | 2022-09-21 |
| CN114207051A (zh) | 2022-03-18 |
| DE102019210687A1 (de) | 2021-01-21 |
| US20220273531A1 (en) | 2022-09-01 |
| WO2021013513A1 (de) | 2021-01-28 |
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