EP2092022A2 - Pigments nacrés - Google Patents

Pigments nacrés

Info

Publication number
EP2092022A2
EP2092022A2 EP07856617A EP07856617A EP2092022A2 EP 2092022 A2 EP2092022 A2 EP 2092022A2 EP 07856617 A EP07856617 A EP 07856617A EP 07856617 A EP07856617 A EP 07856617A EP 2092022 A2 EP2092022 A2 EP 2092022A2
Authority
EP
European Patent Office
Prior art keywords
tio
sio
substrate
layer
feooh
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07856617A
Other languages
German (de)
English (en)
Inventor
Carsten Handrosch
Marcus Mathias
Nicole Schupp
Meike Willius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck Patent GmbH
Original Assignee
Merck Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merck Patent GmbH filed Critical Merck Patent GmbH
Publication of EP2092022A2 publication Critical patent/EP2092022A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A61K8/18—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
    • 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
    • A61K8/29—Titanium; Compounds thereof
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • 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
    • C09C1/0024—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 high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index
    • C09C1/003—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 high and low refractive indices, wherein the first coating layer on the core surface has the high refractive index comprising at least one light-absorbing layer
    • 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
    • C09C1/0057—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 light-absorbing layer
    • 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
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    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
    • 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
    • C09D7/66—Additives characterised by particle size
    • C09D7/68—Particle size between 100-1000 nm
    • 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
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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    • 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
    • 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
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    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • A61Q19/10—Washing or bathing preparations
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    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q3/00—Manicure or pedicure preparations
    • A61Q3/02—Nail coatings
    • A—HUMAN NECESSITIES
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    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • 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
    • 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
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    • 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
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    • C08K9/02—Ingredients treated with inorganic substances
    • 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
    • C09C2200/1004—Interference pigments characterized by the core material the core comprising at least one inorganic oxide, e.g. Al2O3, TiO2 or SiO2
    • 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
    • C09C2200/1004—Interference pigments characterized by the core material the core comprising at least one inorganic oxide, e.g. Al2O3, TiO2 or SiO2
    • C09C2200/1016—Interference pigments characterized by the core material the core comprising at least one inorganic oxide, e.g. Al2O3, TiO2 or SiO2 comprising an intermediate layer between the core and a stack of coating layers having alternating refractive indices
    • 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
    • C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin
    • 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
    • C09C2200/102—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin
    • C09C2200/1033—Interference pigments characterized by the core material the core consisting of glass or silicate material like mica or clays, e.g. kaolin comprising an intermediate layer between the core and a stack of coating layers having alternating refractive indices
    • 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
    • C09C2200/1087—Interference pigments characterized by the core material the core consisting of bismuth oxychloride, magnesium fluoride, nitrides, carbides, borides, lead carbonate, barium or calcium sulfate, zinc sulphide, molybdenum disulphide or graphite
    • 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
    • C09C2200/30—Interference pigments characterised by the thickness of the core or layers thereon or by the total thickness of the final pigment particle
    • C09C2200/301—Thickness of the core
    • 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
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    • C09C2200/302—Thickness of a layer with high refractive material
    • 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
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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
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    • C09C2200/00—Compositional and structural details of pigments exhibiting interference colours
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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
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    • 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
    • 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
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    • 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
    • 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
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    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • 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
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2996—Glass particles or spheres

Definitions

  • the present invention relates to pearlescent pigments based on platelet-shaped substrates which contain at least one FeOOH layer and at least one TiO 2 layer or a TiO 2 -SiO 2 -TiO 2 layer package, and their use in paints, coatings, printing inks, powder coatings and in particular in the care and decorative cosmetics.
  • Pearlescent pigments with iron oxide deposits are known in the art. As a rule, mica platelets are coated with Fe 2 O 3 or Fe 2 TiO 5 . Frequently, however, iron oxide deposits on mica cause cracks, which reduce color brilliance.
  • the object of the present invention is to provide pearlescent pigments with iron oxide coatings which do not have such disadvantages.
  • Annealing temperatures also prevents the formation of pseudobrookite at the boundary layers between Ti and Fe-containing layers.
  • the invention therefore pearlescent pigments, which are characterized in that they
  • any TiO 2 interference color with any FeOOH body color, which leads to interesting color variants; it is possible to deposit both a layer sequence (A) (B) and the layer sequence (B) (A) on the substrate, ie on the substrate is a layer sequence TiO 2 + FeOOH, FeOOH + TiO 2 ,
  • the pearlescent pigments according to the invention have a very smooth surface, they are particularly suitable for nourishing and decorative cosmetics because of their very good skin feel. Furthermore, they are suitable for pigmenting paints, lacquers, powder coatings, printing inks, plastics, seed coloring, for finishing, coloring or coating food and pharmaceutical products, including
  • the pearlescent pigments according to the invention are very attractive, in particular for topical applications, because of the achievable combinations of interference color and body color in the beige and skin-colored color range.
  • Suitable base substrates for the pearlescent pigments according to the invention are, on the one hand, opaque and, on the other hand, transparent platelet-shaped substrates. Particularly preferred are transparent platelet-shaped substrates. Suitable substrates are in particular natural and synthetic mica, talc, kaolin, platelet-shaped iron or aluminum oxides, glass, SiO 2 , TiO 2 , graphite platelets, synthetic carrier-free platelets.
  • Liquid crystal polymers Liquid crystal polymers (LCPs), holographic pigments, BiOCl platelets, metal platelets, optionally passivated, e.g. Aluminum flakes, aluminum bronze flakes, brass bronzes, zinc bronzes, titanium bronzes or other similar materials.
  • glass flakes are particularly preferred, furthermore natural mica flakes and synthetic mica flakes, for example of fluorophlogophite.
  • Very particularly preferred substrates are glass plates which are coated with an SiO 2 layer.
  • the size of the base substrates is not critical per se and can be tailored to the particular application.
  • the platelet-shaped substrates have an average thickness of ⁇ 10 ⁇ m, in particular an average thickness of 0.15-5 ⁇ m.
  • the expansion in the other two ranges is on average usually from 1 to 1000 ⁇ m, preferably from 2 to 250 ⁇ m, in particular from 5 to 150 ⁇ m.
  • the substrate is a glass plate, it is preferably silicate glasses, such as soda lime glass, borosilicate glass, aluminosilicate glass, lead crystal glass, window glass, E, A, C, ECR glass, Duranglas.
  • silicate glasses such as soda lime glass, borosilicate glass, aluminosilicate glass, lead crystal glass, window glass, E, A, C, ECR glass, Duranglas.
  • the glass platelets preferably have an average thickness of ⁇ 10 .mu.m, in particular on average from 50 nm to 5 .mu.m, particularly preferably from 50 to 800 nm and very particularly preferably from 50 to 600 nm.
  • the glass platelets are furthermore preferably characterized by a refractive index of 1.2 to 2.1, preferably of 1.3 to 1.9, and very particularly preferably of 1.4 to 1.6.
  • Suitable substrate platelets preferably have an aspect ratio
  • the thickness of the individual layers (A), (B) and (C) is essential for the optical properties of the pigment. In order to obtain a particularly intense interference color in a pigment u.a. the thickness of the individual layers must be exactly matched to one another. Regardless of the type and refractive index of the individual layers, the thickness of each layer is generally 1 to 1000 nm, in particular 10 to 800 nm and particularly preferably 20 to 600 nm.
  • the FeOOH layer (A) has on average preferably layer thicknesses of 10 to 550 nm, in particular 15 to 400 nm and very particularly preferably 20 to 350 nm.
  • the FeOOH layer usually makes up 0.01-300% by weight, in particular 1-200% by weight and very particularly preferably 2-100% by weight, based on the substrate.
  • layer (B) is a TiO 2 layer, it can be present in both anatase and rutile form. Preferably, it is a rutile layer.
  • the TiO 2 layer preferably has layer thicknesses of 5 to 550 nm, in particular 10 to 400 nm and very particularly preferably 15 to 350 nm. For the rutilization of TiO 2 , numerous methods are known from the literature.
  • a thin SnO 2 layer is applied, which usually layer thicknesses of 1 - 50 nm, in particular 1 - 40 nm and most preferably from 1 to 30 nm.
  • the layer (B) is a TiO 2 -SiO 2 -TiO 2 layer package
  • the layer thicknesses of the TiO 2 layers may be the same or different.
  • the product may contain a TiO 2 -SiO 2 -TiO 2 layer package, but also several layers above one another. However, the sum of all layers deposited on the substrate should not exceed a total thickness of 3 ⁇ m.
  • the individual TiO 2 layers in the package can each . in the anatase or rutile modification. Preferably, they are present as a rutile layer.
  • the individual TiO 2 layer in the layer package preferably has layer thicknesses of 5 to 550 nm, in particular 10 to 400 nm, very particularly preferably 15 to 350 nm.
  • the SiO 2 layer in the Layer package preferably has layer thicknesses of 1 to 1000 nm, in particular of 10 to 800 nm and very particularly preferably of 20 to 600 nm.
  • the total layer thickness of the TiO 2 -SiO 2 -TiO 2 is preferably
  • layer packages are ⁇ 2,100 nm, in particular ⁇ 1,600 nm and very particularly preferably ⁇ 1,300 nm.
  • Materials suitable for layer (C) are colorless low-index materials, preferably metal oxides or the corresponding ones
  • Oxide hydrates examples include: SiO 2 , Al 2 O 3 , AIO (OH), B 2 O 3 , MgF 2 , MgSiO 3 or a mixture of the compounds mentioned.
  • the thickness of the layer (C) is on average preferably 1-1000 nm, in particular 10-800 nm and very particularly preferably 20-600 nm. This layer may occur once or even several times in the layer sequence. But it can also be completely missing.
  • This intermediate layer (Z) preferably has layer thicknesses of 1 to 1000 nm, in particular of 1 to 500 nm and very particularly preferably of 1 to 300 nm.
  • the SiO 2 layer protects the substrate surface from chemical changes such as swelling, leaching of glass components or dissolution in the aggressive acidic coating solutions.
  • the adhesion of the coating (s) following the SiO 2 layer also generally increases. In this way, the overall stability of the SiO 2 layer
  • the SiO 2 intermediate layer has a positive effect on the gloss of the pigment.
  • Particularly preferred pearlescent pigments have the following layer sequences:
  • the pearlescent pigments according to the invention can be prepared relatively easily.
  • the layers are preferably applied wet-chemically, whereby the wet-chemical coating processes developed for the production of pearlescent pigments can be used.
  • Such methods are described for example in DE 14 67 468, DE 19 59 988, DE 20 09 566, DE 22 14 545, DE 22 15 191, DE 22 44 298, DE 23 13 331, DE 25 22 572, DE 31 37 808 DE 31 37 809, DE 31 51 343, DE 31 51 355, DE 32 11 602, DE 32 35 017 or in further the
  • the substrate particles are suspended in water and admixed with one or more hydrolyzable metal salts at a pH suitable for the hydrolysis, which is chosen such that the metal oxides or metal oxide hydrates are precipitated directly on the platelets without being too substantial Precipitation comes.
  • a pH suitable for the hydrolysis which is chosen such that the metal oxides or metal oxide hydrates are precipitated directly on the platelets without being too substantial Precipitation comes.
  • the pH is usually kept constant by simultaneous addition of a base and / or acid.
  • the pigments are separated, washed and dried at 50-180 0 C.
  • the coating can also be carried out in a fluidized bed reactor by gas phase coating, wherein z. B. in EP 0 045 851 A1 and EP 0 106 235 A1 can be used correspondingly for the production of pearlescent pigments.
  • the pearlescent pigments mentioned contain a TiO 2 layer, this may be present in the rutile or in the anatase modification. Preferably, it is present as rutile.
  • the rutilization is known to the person skilled in the art and can be carried out, for example, as described in US Pat. Nos. 4,038,099, 5,433,779, 6,626,989, WO 03/097749, 4,086,100, US Pat
  • the pearlescent pigments of the invention may also be provided with a protective layer to increase the light, weather and chemical stability or to increase the compatibility in different media. Depending on the type of secondary coating, this may possibly still be applied in the reaction suspension of the base pigment directly after the precipitation of the last pigment layer has ended. For some coats, however, it is recommended to re-suspend the already finished pearlescent pigment in a suitable medium and then re-coat it.
  • a protective layer to increase the light, weather and chemical stability or to increase the compatibility in different media.
  • this may possibly still be applied in the reaction suspension of the base pigment directly after the precipitation of the last pigment layer has ended. For some coats, however, it is recommended to re-suspend the already finished pearlescent pigment in a suitable medium and then re-coat it.
  • post-coatings or post-treatments are, for example, in DE-PS 22 15 191, DE-OS 31 51 354, DE-OS 32 35 017 or DE-OS 33 34 598 described methods in question.
  • Postcoating further increases the chemical stability or facilitates the handling of the pigment, in particular the incorporation into different media.
  • functional coatings of Al 2 O 3 or ZrO 2 or mixtures thereof or mixed phases can be applied to the pigment surface.
  • organic or organically / organically combined secondary coatings are possible, for example with silanes, as described, for example, in EP 0090259, EP 0 634 459, WO 99/57204, WO 96/32446, WO 99/57204, US Pat. No. 5,759,255, US Pat 5,571, 851, WO 01/92425 or in JJ. Ponjee, Philips Technical Review, Vol.
  • the pearlescent pigments according to the invention are compatible with a large number of color systems, preferably from the field of lacquers, paints, printing inks and cosmetic formulations.
  • z. B. for gravure printing, flexographic printing, offset printing, offset overprinting, a variety of binders, especially water-soluble types, suitable as z. B. from the companies BASF, Marabu, Pröll, Sericol, Hartmann, Gebr. Schmidt, Sicpa, Aarberg, Siegberg, GSB election, Follmann, Ruco or Coates Screen INKS GmbH.
  • the printing inks may be water-based or solvent-based.
  • the pearlescent pigments are also suitable for agricultural applications, eg. As for greenhouse films, for seed coloring, and z. B. for the color of tarpaulins suitable.
  • the pearlescent pigments according to the invention combine a particularly clear color with intense interference colors and high brilliance, they can be used to achieve particularly effective effects in the various application media, eg. As in cosmetic formulations, such as nail polishes, lipsticks, compressed powders, gels, lotions, emulsions, soaps, toothpastes.
  • cosmetic formulations such as nail polishes, lipsticks, compressed powders, gels, lotions, emulsions, soaps, toothpastes.
  • the pearlescent pigments according to the invention can also be advantageously used in admixture with organic dyes, organic pigments or other pigments, such as e.g. transparent and opaque white, colored and black pigments as well as with platelet-shaped iron oxides, organic pigments, holographic pigments, LCPs (Liquid Crystal Polymers) and conventional transparent, colored and black
  • Luster pigments based on metal oxide-coated mica and SiO 2 flakes, etc. can be used.
  • the pigments according to the invention can be mixed in any ratio with commercially available pigments and fillers.
  • fillers z examples include natural and synthetic mica, glass beads or glass powder, nylon powder, pure or filled melamine resins, talc, glasses, kaolin, oxides or hydroxides of Aluminum, magnesium, calcium, zinc, BiOCl, barium sulfate, calcium sulfate, calcium carbonate, magnesium carbonate, carbon, as well as physical or chemical combinations of these substances.
  • the pigments according to the invention in the formulations can also be combined with any type of raw materials and excipients.
  • raw materials and excipients include u.a. Oils, fats, waxes, film formers, preservatives and general application properties determining auxiliaries, such.
  • auxiliaries such as B. thickened and theological
  • Additives such as bentonites, hectorites, silicas, ca silicates, gelatins, high molecular weight carbohydrates and / or surface active aids, etc.
  • the pigments according to the invention can furthermore also be combined with cosmetic active ingredients.
  • Suitable active ingredients are, for example, insect repellents, inorganic UV filters, such as TiO 2 , UVA / BC protective filters (eg OMC, B3, MBC), also in encapsulated form, anti-aging active ingredients, vitamins and their derivatives (eg A, C, E, etc.), self-tanner (eg DHA, erytrolysis, etc.) and other cosmetic active ingredients, such as bisabolol, LPO, VTA, ectoine, emblica, allantoin, bioflavanoids and their derivatives.
  • Organic UV filters are usually incorporated in an amount of 0.5 to 10 percent by weight, preferably 1-8%, inorganic filters from 0.1 to 30% in cosmetic formulations.
  • the DHA is slowly in the Degraded formulation.
  • the DHA remains effective fully preserved or the degradation is at least noticeably slowed down if a secondary coating, in particular a final layer of SiO 2 , was applied.
  • the preparations according to the invention may additionally contain further customary skin-sparing or skin-care active substances.
  • these can be all active ingredients known to the person skilled in the art.
  • Particularly preferred active ingredients are pyrimidinecarboxylic acids and / or aryloximes.
  • EP-A-0 671 161 describes that ectoine and hydroxyectoine are used in cosmetic preparations such as powders, soaps, surfactant-containing cleansing products, lipsticks, blushes, make-up, care creams and sunscreen preparations.
  • the cosmetic formulations e.g. solutions, suspensions, emulsions, PIT emulsions, pastes, ointments, gels, creams, lotions, powders, soaps, surfactant-containing cleansing preparations, oils, aerosols and sprays.
  • Other applications are e.g. Sticks, shampoos and shower baths. Any customary carrier substances, adjuvants and optionally further active ingredients can be added to the preparation.
  • Ointments, pastes, creams and gels may contain the usual excipients, e.g. animal and vegetable fats, waxes, paraffins, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silicic acid, talc and zinc oxide or mixtures of these substances.
  • excipients e.g. animal and vegetable fats, waxes, paraffins, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silicic acid, talc and zinc oxide or mixtures of these substances.
  • Powders and sprays may contain the usual excipients, for example lactose, talc, silicic acid, aluminum hydroxide, calcium silicate and polyamide powder or mixtures of these substances.
  • Sprays can additionally the usual propellants, eg chlorofluorohydrocarbons, propane / butane or dimethyl ether.
  • Solutions and emulsions may contain the usual excipients such as solvents, solubilizers and emulsifiers, e.g. Water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylglycol, oils, in particular cottonseed oil, peanut oil, corn oil, olive oil, castor oil and sesame oil, glycerol fatty acid esters, polyethylene glycols and fatty acid esters of sorbitan or mixtures contain these substances.
  • solvents e.g. Water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylglycol, oils, in particular cottonseed oil, peanut oil, corn oil, olive oil, castor oil and sesame oil,
  • Suspensions may include the usual carriers such as liquid diluents, e.g. Water, ethanol or propylene glycol,
  • Suspending agent e.g. ethoxylated isostearyl alcohols, polyoxyethylene sorbitol esters and polyoxyethylene sorbitan esters, microcrystalline cellulose, aluminum metahydroxide, bentonite, agar-agar and tragacanth or mixtures of these substances.
  • Soaps may contain the usual excipients such as alkali metal salts of fatty acids, salts of fatty acid monoesters, fatty acid protein hydrolysates, isothionates, lanolin, fatty alcohol, vegetable oils, plant extracts, glycerol, sugars or mixtures of these substances.
  • excipients such as alkali metal salts of fatty acids, salts of fatty acid monoesters, fatty acid protein hydrolysates, isothionates, lanolin, fatty alcohol, vegetable oils, plant extracts, glycerol, sugars or mixtures of these substances.
  • Surfactant-containing cleaning products may include the usual excipients such as salts of fatty alcohol sulfates, fatty alcohol ether sulfates, sulfosuccinic monoesters, fatty acid protein hydrolysates, isothionates, imidazolinium derivatives, methyl taurates, sarcosinates, fatty acid amide ether sulfates, alkyl amidobetaines, fatty alcohols, fatty acid glycerides, fatty acid diethanolamides, vegetable and synthetic oils, lanolin derivatives, ethoxylated glycerol - Contain fatty acid esters or mixtures of these substances.
  • excipients such as salts of fatty alcohol sulfates, fatty alcohol ether sulfates, sulfosuccinic monoesters, fatty acid protein hydrolysates, isothionates, imidazolinium derivatives, methyl taurates, sarcosinate
  • Facial and body oils may contain the usual excipients such as synthetic oils such as fatty acid esters, fatty alcohols, silicone oils, natural oils such as vegetable oils and oily vegetable extracts, paraffin oils, lanolin oils or mixtures of these substances.
  • the cosmetic preparations can be in various forms. So they can z.
  • Oil-in-water type (O / W), a multiple emulsion, for example of the water-in-oil-in-water (W / O / W) type, a gel, a solid stick, an ointment or even an aerosol , It is also advantageous to present Ectoine in encapsulated form, e.g. In collagen matrices and other common encapsulating materials, e.g. As encapsulated cellulose, in gelatin, wax matrices or liposomally encapsulated. In particular wax matrices as described in DE-OS 43 08 282, have been found to be favorable. Preference is given to emulsions. O / W emulsions are particularly preferred. Emulsions, W / O emulsions and O / W emulsions are available in the usual way.
  • oily lotions based on natural or synthetic oils and waxes, lanolin, fatty acid esters, especially triglycerides of fatty acids, or oily alcoholic lotions based on a lower alcohol, such as ethanol, or a glycerol, such as propylene glycol, and / or a polyol.
  • a lower alcohol such as ethanol, or a glycerol, such as propylene glycol, and / or a polyol.
  • glycerine oils, waxes and fatty acid esters, such as triglycerides of fatty acids.
  • Solid pens are made of natural or synthetic waxes and oils, fatty alcohols, fatty acids, fatty acid esters, lanolin and other fatty substances.
  • blowing agents are generally used, such as alkanes, fluoroalkanes and chlorofluoroalkanes.
  • the concentration of the pearlescent pigment according to the invention in the application system to be pigmented is generally between 0.01 and 70% by weight, preferably between 0.1 and 50% by weight and in particular between 1, 0 and 10% by weight, based on the total solids content of system. It is usually dependent on the specific application and can be up to 100% for loose powders.
  • the operational The concentration of the pigment mixture according to the invention ranges from 0.01% by weight in the shampoo to up to 70% by weight in the pressed powder.
  • concentrations of the pigment mixtures according to the invention in the formulation are unlimited. Depending on the application, they may be between 0.001 (rinse-off products, e.g., shower gels) - 100% (e.g., gloss effect items for particular applications).
  • the formulations containing the pigment mixtures according to the invention may belong to the lipophilic, hydrophilic or hydrophobic type.
  • the inventive formulations may belong to the lipophilic, hydrophilic or hydrophobic type.
  • Pigment mixtures in each case contain only one of the two phases or be distributed over both phases.
  • the pH values of the formulations may be between 1 and 14, preferably between 2 and 11 and more preferably between 5 and 8.
  • the coloring and / or finishing of the pharmaceutical and food products is carried out by the pearlescent pigment of the invention alone or in combination with colorants, such. natural or nature-identical dyes, in the desired proportions, preferably in amounts of 0.005 to 30 wt.%, In particular 0.001 to 20 wt.%, Is added to the product to be dyed.
  • colorants such. natural or nature-identical dyes
  • Suitable natural or nature-identical dyes are, in particular, E 101, E 104, E 110, E 124, E 131, E 132, E 140, E 141, E 151, E 160 a.
  • color pigments can also be used according to the invention
  • Pearlescent pigment are mixed, such. E 171, E 172, E 153.
  • the proportion of colorants in addition to the pearlescent pigment based on the food or pharmaceutical product is preferably in the range of 0.5 to 25 wt.%.
  • Fruit and plant extracts such as e.g. Carrot juice, beetroot juice, elderberry juice, hibiscus juice, paprika extract, aronia extract.
  • the total concentration of all pigments in the product to be pigmented should not exceed 50% by weight of the product. It is usually dependent on the specific application.
  • the food and pharmaceutical products may also contain different drug admixtures, e.g. Vitamins, enzymes, trace elements, proteins, carbohydrates, essential fats and / or minerals may be added, the total amount of active ingredients based on the
  • Food or pharmaceutical product should not exceed 25% by weight.
  • the amount of active substances or active substance mixtures is preferably 0.01-20% by weight, based on the product.
  • the coloring of the products is carried out by the pearlescent pigment alone or in combination with other colorants directly or in the presence of water and / or an organic solvent in the desired proportions, simultaneously or sequentially, during or after their preparation, before or after molding (eg in extrusion, pelleting, pinning, granulation, etc.) to be colored
  • the amount used of the pearlescent pigments according to the invention is preferably 0.005-15% by weight, in particular 1-10% by weight.
  • the use concentration of the pigments according to the invention is preferably ⁇ 10 wt.%.
  • Products suitable for coloring or coating are, for example, sugar confectionery, cake decorations, compresses, dragées, chewing gums, rubber products, fondant products, marzipan products, fillers, cocoa and fat glazes, chocolate and chocolate-containing products, ice cream, cereals, snack products, coating compositions, Cake glazes, sugar sprinkles, nonpareilles, jelly and gelatin products, candies, licorice, frosting, cotton candy, fat, sugar and cream masses, puddings, desserts, cake sprinkles, cold dishes, lemonades and effervescent drinks, beverages with stabilizing additives, such as.
  • carboxymethylcellulose acidified and unleavened milk products, such as. Curd cheese, yogurt, cheese, cheese rinds, sausage casings, etc.
  • the combination of the pearlescent pigments according to the invention with flavorings such as, for example, Aspartame, possible to accentuate the visual effect and taste.
  • the invention thus relates to all formulations from the food and pharmaceutical sector containing the inventive
  • Pearlescent pigments alone or in combination with other colorants, e.g. natural and / or nature-identical dyes, fruit and plant extracts, color pigments, and / or with one or more active ingredients, such as. Vitamins, enzymes, trace elements, proteins, carbohydrates, essential fats.
  • active ingredients such as. Vitamins, enzymes, trace elements, proteins, carbohydrates, essential fats.
  • the invention thus also relates to the use of the pearlescent pigments in formulations such as paints, lacquers, automotive coatings, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, in the paper coating, in toners for electrophotographic printing processes, for the dyeing of seeds, in greenhouse films and tarpaulins, as absorbers in the laser marking of paper and polymers, such as plastics, for coating and / or coloring of food and pharmaceutical products, in cosmetic formulations, for the preparation of Pigmentante Trenten with water, organic and / or aqueous solvents, for the preparation of pigment preparations and dry preparations, such as. B. granules.
  • formulations such as paints, lacquers, automotive coatings, powder coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, paper, in the paper coating, in toners for electrophotographic printing processes, for the dyeing of seeds, in greenhouse films and tarpaulins, as absorbers
  • the pigment with bright green interference and gold-ocher body color is filtered off after cooling to room temperature, washed salt-free and dried at 110 0 C.
  • 200 g of synthetic mica flakes of the fraction of 10-60 .mu.m are made up to a concentration of 100 g / l with deionised water.
  • the suspension is heated to 80 0 C. With vigorous stirring, about 430 g of a FeCb solution (14.25% Fe) are added.
  • the pH is kept constant at 4.0 with sodium hydroxide solution (32% NaOH).
  • the pH is then lowered to 1.8 with hydrochloric acid (15% HCl) and about 30 ml of a TiOCl 2 solution (400 g / l TiCl 4 ) are metered in at this pH.
  • the pH is kept constant with sodium hydroxide solution (32% NaOH).
  • the pH is first treated with sodium hydroxide solution (32% NaOH) was brought to 7.5. Then about 400 g of a waterglass solution (13% SiO 2 ) are added. After completion of the addition of the pH with hydrochloric acid (15% HCl) is lowered to 2.0 and at this pH, a solution of 3 g SnCl 4 x 5 H 2 O in 10 ml of hydrochloric acid (37% HCl) and 90 ml dosed demineralized water. The pH is kept constant again by counter-titration with sodium hydroxide solution (32% NaOH).
  • the pH of the reaction suspension is first lowered to 1.8 with hydrochloric acid (15% HCl) and at this pH 476 ml of TiCl 4 solution (400 g / l) are metered in.
  • the pH is kept constant with sodium hydroxide solution (32% NaOH). It is stirred for 15 min.
  • the product obtained is filtered off after cooling to room temperature, washed salt-free and dried at 110 ° C. It shows a blue-violet-colored interference and ocher yellow body color.
  • a SnCl 4 solution (3 g SnCl 4 ⁇ 5H 2 O in 15 ml concentrated HCl (25% strength) / 85 ml DI water) is metered in with sodium hydroxide solution (32% NaOH ) counter-titrated. Thereafter, the metered addition of a TiCl 4 solution (400 g TiCl 4 g / l). The pH is determined by counter-titration with sodium hydroxide solution (32% NaOH). kept constant. The dosing takes place until a red interference color is reached. The precipitation process is controlled according to the hue (hue angle arc tan b * / a * ) ° by means of inline control via COPRA measurement of the suspension.
  • the pigment with gold-green interference and gold-ocher body color is filtered off after cooling to room temperature, washed salt-free and dried at 110 0 C.
  • Phase A Put water in the kettle and stir in the pigment. Sprinkle in Keltrol CG-SFT slowly while stirring and stir until completely dissolved (do not homogenize). Add the components of phase B individually to phase A. Dissolve citric acid monohydrate in water and add to the mixture and stir slowly until everything is homogeneously distributed. Adjust the pH to 6.0-6.5 with the addition of citric acid (as needed).
  • phase A stir the filler into the water. Acidify with a few drops of citric acid (10%) to reduce the viscosity and slowly pour in the Carbopol while stirring. After complete dissolution, add Phase B slowly. Successively, the ingredients of phase C are added. Adjust the pH to 6.0-6.5.
  • the pigments are weighed together with the lacquer base, mixed well with a spatula by hand and then stirred for 10 min at 1000 rpm.

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Abstract

L'invention concerne des pigments nacrés à base de substrats en forme de plaquettes, comportant au moins une couche FeOOH et au moins une couche TiO<SUB>2 </SUB>ou bien au moins un ensemble de couches TiO<SUB>2</SUB>-SiO<SUB>2</SUB>-TiO<SUB>2</SUB>, ainsi que leur utilisation, entre autres, dans les peintures, les vernis, les encres d'imprimerie, les peintures en poudre, les matières synthétiques, en particulier, pour les produits cosmétiques de soin et de beauté.
EP07856617A 2006-12-20 2007-12-12 Pigments nacrés Withdrawn EP2092022A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006060997A DE102006060997A1 (de) 2006-12-20 2006-12-20 Perlglanzpigmente
PCT/EP2007/010869 WO2008077487A2 (fr) 2006-12-20 2007-12-12 Pigments nacrés

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EP2092022A2 true EP2092022A2 (fr) 2009-08-26

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US (1) US8114211B2 (fr)
EP (1) EP2092022A2 (fr)
JP (1) JP2010513614A (fr)
DE (1) DE102006060997A1 (fr)
WO (1) WO2008077487A2 (fr)

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US20100021565A1 (en) 2010-01-28
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DE102006060997A1 (de) 2008-06-26
JP2010513614A (ja) 2010-04-30

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