INTERFERENCE PIGMENTS

Abstract

The present invention relates to interference pigments based on platelet-shaped substrates which are coated with at least four high refractive layers and to the use thereof, inter alia in paints, coatings, printings inks, plastics and in particular in cosmetic formulations. The interference pigments show a moderate chroma and can be used as effect pigments, as filler pigments and as protection agent against near infrared radiation, VIS and high energy light.

Claims

1. Interference pigments based on platelet shaped substrates with a particle diameter in the range 1-100 μm characterized in that the substrates are coated on the surface with at least four layers (A) to (D), (A) is a highly refractive index layer which essentially consist of SnO.sub.2 (B) is a highly refractive index layer which essentially consist of TiO.sub.2 (C) is a highly refractive index layer which essentially consist of SnO.sub.2 (D) is a highly refractive index layer which essentially consist of TiO.sub.2 and optionally (E) an outer protective layer.

2. Interference pigment according to claim 1, characterised in that the platelet-shaped substrates are selected from natural or synthetic mica, coated or uncoated glass flakes, Al.sub.2O.sub.3 flakes, SiO.sub.2 flakes, Fe.sub.2O.sub.3 flakes, perlite flakes or TiO.sub.2 flakes, passivated metal flakes and flake-form materials coated with metal oxides.

3. Interference pigments according to claim 1, characterised in that the flake-form substrates are mica flakes, coated or uncoated glass flakes or Al.sub.2O.sub.3 flakes.

4. Interference pigments according to claim 1, characterized in that the glass flakes are coated with a SiO.sub.2 layer (layer (A0)).

5. Interference pigments according to claim 1, characterised in that layer (B) and/or layer (D) are/is doped with one or more alkaline metals or earth alkaline metals.

6. Interference pigments according to claim 1, characterised in that the pigments have the following structure: Synthetic mica+SnO.sub.2+TiO.sub.2+SnO.sub.2+TiO.sub.2 Natural mica+SnO.sub.2+TiO.sub.2+SnO.sub.2+TiO.sub.2 Al.sub.2O.sub.3 flakes+SnO.sub.2+TiO.sub.2+SnO.sub.2+TiO.sub.2 SiO.sub.2 flakes+SnO.sub.2+TiO.sub.2+SnO.sub.2+TiO.sub.2 Glass flakes+SiO.sub.2+SnO.sub.2+TiO.sub.2+SnO.sub.2+TiO.sub.2 Glass flakes+SnO.sub.2+TiO.sub.2+SnO.sub.2+TiO.sub.2.

7. Interference pigments according to claim 1, characterised in that the thickness of all layers (A0)-(D) or (A)-(D) on the substrate is ≤300 nm.

8. Process for the preparation of the interference pigments according to claim 1, characterised in that the metal oxides are applied to the flake-form substrate by wet-chemical methods by hydrolytic decomposition of metal salts in aqueous medium.

9. A method for pigmenting a composition comprising incorporating an interference pigment according to claim 1 in a composition for paints, coatings, industrial coatings, coil coating, automobile paints, automotive refinish paints, powder coatings, printing inks, security printing inks, plastics, ceramic materials, cosmetic formulations, glasses, paper, toners for electrophotographic printing processes, seeds, greenhouse sheeting or tarpaulins, absorbers in the laser marking of paper and plastics, cosmetic formulations, for the preparation of pigment pastes with water, organic and/or aqueous solvents, the preparation of pigment preparations or dry preparations, the mass colouring of foods, the colouring of coatings of food products or pharmaceutical products or a protecting agent against IR-A, VIS and HEV light.

10. Formulation containing one or more interference pigments according to claim 1.

11. Formulation according to claim 10 characterized in that the formulation is a cosmetic formulation.

12. Formulation according to claim 11 characterized in that the cosmetic formulation is an oil-in-water emulsion, a water-in-oil emulsion, a water-in-silicone emulsion or a gel.

13. Formulation according to claim 10 characterized in that the formulation additionally contains at least one constituent selected from the group of the absorbents, astringents, antimicrobial substances, antioxidants, antiperspirants, antifoaming agents, antidandruff active compounds, antistatics, binders, biological additives, bleaches, chelating agents, deodorisers, emollients, emulsifiers, emulsion stabilisers, dyes, humectants, film formers, fillers, fragrances, flavours, insect repellents, preservatives, anticorrosion agents, cosmetic oils, solvents, oxidants, vegetable constituents, buffer substances, reducing agents, surfactants, propellant gases, opacifiers, UV filters, UV absorbers, denaturing agents, viscosity regulators, perfume and vitamins

14. Formulations according to claim 10 characterized in that the formulation contains additionally one or more organic or inorganic UV filters.

Description

EXAMPLES

Example 1

[0107] 175 g of fine-mica powder of 1 to 15 μm (average particle diameter: 6.5 μm) are suspended in 2.5 liters of deionized water. The suspension is heated to 75° C. while stirring. The pH is adjusted to 9.5 by adding sodium hydroxide. 335 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution.

[0108] 250 ml of aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 3.0 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. Then 335 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. After adding the aqueous solution of SnCl.sub.4 the aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 5.0 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution.

[0109] After reaching to end point of Gold.

[0110] The pH value of the suspension is controlled pH 9.0 by adding aqueous NaOH solution. The suspension containing mica coated with metal hydroxide is filtrated and washed by deionized water. The filter cake is dried at 110° C. and the dried product is calcinated at 750° C.

Example 2

[0111] 122.5 g of fine-mica powder of 1 to 15 μm (average particle diameter: 6.5 μm) are suspended in 1.75 liters of deionized water. The suspension is heated to 75° C. while stirring. The pH is adjusted to 9.5 by adding sodium hydroxide. 265 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.0 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution.

[0112] 630 ml of aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 2.0 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. Then 265 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.0 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. After adding the aqueous solution of SnCl.sub.4 the aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 2.0 ml/min to the suspension in controlling the pH 1.6 by simultaneous addition of aqueous NaOH solution.

[0113] After reaching to end point of Red.

[0114] The pH value of the suspension is controlled pH 9.0 by adding aqueous NaOH solution. The suspension containing mica coated with metal hydroxide is filtrated and washed by deionized water. The filter cake is dried at 110° C. and the dried product is calcinated at 750° C.

Example 3

[0115] 147 g of fine-mica powder of 1 to 15 μm (average particle diameter: 6.5 μm) are suspended in 2.1 liters of deionized water. The suspension is heated to 75° C. while stirring. The pH is adjusted to 9.5 by adding sodium hydroxide. 271 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. 250 ml of aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 2.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. Then 271 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution was added at the rate of 3.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. After adding the aqueous solution of SnCl.sub.4 the aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 5.5 ml/min to the suspension in controlling the pH 1.6 by simultaneous addition of aqueous NaOH solution.

[0116] After reaching to end point of Blue.

[0117] The pH value of the suspension is controlled pH 9.0 by adding aqueous NaOH solution. The suspension containing mica coated with metal hydroxide is filtrated and washed by deionized water. The filter cake is dried at 110° C. and the dried product is calcinated at 750° C.

Example 4

[0118] 140 g of fine-mica powder of 1 to 15 μm (average particle diameter: 6.5 μm) are suspended in 2.0 liters of deionized water. The suspension is heated to 75° C. while stirring. The pH is adjusted to 9.5 by adding sodium hydroxide. 290 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution.

[0119] 250 ml of aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 5.0 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. Then 270 ml of aqueous solution of SnCl.sub.4 (53 g/l) containing HCl solution is added at the rate of 3.5 ml/min to the suspension in controlling the pH 1.8 by simultaneous addition of aqueous NaOH solution. After adding the aqueous solution of SnCl.sub.4 the aqueous solution of TiCl.sub.4 (400 g/l) is added at the rate of 5.5 ml/min to the suspension in controlling the pH 1.6 by simultaneous addition of aqueous NaOH solution.

[0120] After reaching to end point of Green.

[0121] Thereafter, 4.0 g of MgCl.sub.2.6H.sub.2O and 8 g of CaCl.sub.2.2H.sub.2O are added. Then, the pH value of the suspension is controlled pH 9.0 by adding aqueous NaOH solution. The suspension containing mica coated with metal hydroxide is filtrated and washed by deionized water. The filter cake is dried at 110° C. and the dried product is calcinated at 750° C.

Use Examples

Examples A1.1 to A1.4: Oil-in-Water Formulation

[0122]

TABLE-US-00001 Example BLANK A1.1 A1.2 A1.3 A1.4 Ingredient INCI % w/w % w/w % w/w % w/w % w/w Phase A Pigment TITANIUM a) 5.00 according to DIOXIDE, b) 3.00 Example 3 MICA, TIN OXIDE Pigment TITANIUM a) 5.00 according to DIOXIDE, b) 3.00 Example 1 MICA, TIN OXIDE Pigment TITANIUM a) 5.00 according to DIOXIDE, b) 3.00 Example 4 MICA, TIN OXIDE Pigment TITANIUM a) 5.00 according to DIOXIDE, b) 3.00 Example 2 MICA, TIN OXIDE Montanov 202 ARACHIDYL 3.50 3.50 3.50 3.50 3.50 ALCOHOL, BEHENYL ALCOHOL, ARACHIDYL GLUCOSIDE Montanov 14 MYRISTYL 1.50 1.50 1.50 1.50 1.50 ALCOHOL, MYRISTYL GLUCOSIDE Tegosoft TN C12-15 8.00 8.00 8.00 8.00 8.00 ALKYL BENZOATE Massocare HD ISOHEXADECANE 4.00 4.00 4.00 4.00 4.00 Miglyol 812 CAPRYLIC/ 10.00 10.00 10.00 10.00 10.00 CAPRIC TRIGLYCERIDE Phase B Glycerin 85% GLYCERIN 4.00 4.00 4.00 4.00 4.00 Keltrol CG-RD XANTHAN 0.80 0.80 0.80 0.80 0.80 GUM Wasser AQUA 67.2 62.20 62.20 62.20 62.20 Phase C Euxyl PE 9010 PHENOXYETHANOL, 1.00 1.00 1.00 1.00 1.00 ETHYLHEXYLGLYCERIN sum 100.00 100.00 100.00 100.00 100.00

Procedure:

[0123] Heat up phase A up to 75-80° C. Disperse Pigment according to Examples 1 to 4 in phase A while holding the temperature at 75-80° C. Disperse Keltrol CG-RD while stirring in phase B and heat up to 75-80° C. Add phase A to phase B and homogenize with Ultra Turrax T-25 for 2.5 minutes at 8000 rpm. Cool down while stirring to room temperature and add phase C while stirring.

Example A2: Gel Formulation

[0124]

TABLE-US-00002 Ingredient INCI % w/w Phase A RonaCare ® AP BIS-ETHYLHEXYL 2.00 HYDROXYDIMETHOXY BENZYLMALONATE Paraffin liquid PARAFFINUM LIQUIDUM 2.00 Crodamol DA DIISOPROPYL ADIPATE 7.00 Xiameter ® PMX- CYCLOPENTASILOXANE, 5.00 0345 CYCLOHEXASILOXANE Phase B Sepiplus 400 POLYSORBATE 20, 2.00 POLYACRYLATE 13, POLYISOBUTENE Phase C Pigment CI 77891, MICA, TIN OXIDE 4.00 according to Example 4 RonaFlair ® LDP SODIUM POTASSIUM 2.00 White ALUMINUM SILICATE, CI 77891, SILICA RonaCare ® SALICYLIC ACID 1.00 Salicylic Acid Glycerol 85% GLYCERIN, AQUA 3.00 RonaCare ® ECTOIN 0.50 Ectoin Titriplex ® III DISODIUM EDTA 0.10 Euxyl PE 9010 PHENOXYETHANOL, 1.00 ETHYLHEXYL GLYCERIN Water, AQUA ad 100 demineralized Phase D Fragrance PARFUM q.s. sum 100.00

Procedure:

[0125] Dissolve ingredients of phase A until homogenous.

[0126] Add B under stirring in the premixed phase C.

[0127] Add slowly phase A to phase B/C while stirring. Homogenize. Finally add phase D.

Example A3: Gel Formulation

[0128]

TABLE-US-00003 Ingredient INCI % w/w Phase A Colorona ® SYNTHETIC FLUORPHLOGOPITE, 2.00 SynBronze CI 77491 Pigment CI 77891, MICA, TIN OXIDE 1.00 according to Example 1 Carbopol Ultrez ACRYLATES/C10-30 ALKYL 0.60 21 ACRYLATE CROSSPOLYMER Citric Acid CITRIC ACID 0.00 Monohydrate Water, AQUA ad 100 demineralized Phase B 1.2-Propanediol PROPYLENE GLYCOL 3.00 RonaCare® ALLANTOIN 0.20 Allantoin Water, AQUA 26.46 demineralized Phase C Paraffin liquid PARAFFINUM LIQUIDUM 10.00 Cetiol V DECYL OLEATE 6.00 Hostaphat KL TRILAURETH-4 PHOSPHATE 3.00 340 D Cetyl Alcohol CETYL ALCOHOL 2.00 Preservatives 0.00 (q.s.) Phase D Triethanolamine TRIETHANOLAMINE 0.35 Water, AQUA 3.50 demineralized Phase E German 115 IMIDAZOLIDINYL UREA 0.15 Water, AQUA 1.50 demineralized Phase F Fragrance PARFUM q.s.

Procedure:

[0129] Disperse the pearlescent pigment in the given water quantity of phase A. Add some drops of citric acid solution to lower the viscosity and add the Carbopol while stirring. Mix with high agitation until thoroughly dispersed. Dissolve phase B and add phase B slowly to phase A while stirring. Heat phase A/B and phase C separately to 80° C. Add phase C to phase A/B, homogenize, neutralize with phase D, homogenize again and cool down while stirring. Add phase E and phase F at 40° C. Cool down to room temperature while stirring. The pH is between 5.5 and 6.0 at room temperature. Fill the bulk into packages of choice.

Example A4: Gel

[0130]

TABLE-US-00004 Ingredient INCI % w/w Phase A RonaCare ® AP BIS-ETHYLHEXYL 0.50 HYDROXYDIMETHOXY BENZYLMALONATE Miglyol 812 N CAPRYLIC/CAPRIC TRIGLYCERIDE 3.00 Cetiol CC DICAPRYLYL CARBONATE 2.50 Sepinov P88 SODIUM ACRYLATE, ACRYLOYL 2.00 DIMETHYLTAURATE, DIMETHYLACRYLAMIDE CROSSPOLYMER Xiameter ® PMX- CYCLOPENTASILOXANE, 2.00 0345 CYCLOHEXASILOXANE Xiameter ® PMX- DIMETHICONE 1.00 200 (100 cs) Phase B RonaFlair ® White SYNTHETIC SAPPHIRE 3.00 Sapphire Pigment CI 77891, MICA, TIN OXIDE 2.00 according to Example 1 Eusolex ® UV- AQUA, OCTOCRYLENE, SORBITOL, 15.00 Pearls ® OB-S BUTYL METHOXYDIBENZOYLMETHANE, SILICA, PVP, CHLORPHENESIN, PHENOXYETHANOL, DISODIUM EDTA 1.3-Butanediol BUTYLENE GLYCOL 3.00 Water, AQUA ad 100 demineralized Phase C RonaCare ® AQUA, ALCOHOL, LECITHIN, 2.00 Cyclopeptide-5 ECTOIN, CYCLOTETRAPEPTIDE-24 AMINOCYCLOHEXANE CARBOXYLATE Euxyl PE 9010 PHENOXYETHANOL, ETHYLHEXYL 1.00 GLYCERIN Fragrance PARFUM q.s. 0

Procedure:

[0131] Add phase B slowly with vigorous stirring to phase A. Homogenize. Afterwards add phase C.

Example A5: Oil-in-Water Emulsion

[0132]

TABLE-US-00005 Ingredient INCI % w/w Phase A Water, demineralized AQUA (WATER) ad 100 Glycerol 85% GLYCERIN, AQUA (WATER) 6.00 Pigment CI 77891 (TITANIUM DIOXIDE), 1.50 according to MICA, TIN OXIDE Example 2 Pigment CI 77891 (TITANIUM DIOXIDE), 1.50 according to MICA, TIN OXIDE Example 3 RonaCare ® ECTOIN 1.00 Ectoin Keltrol CG-SFT XANTHAN GUM 0.15 Triethanolamine TRIETHANOLAMINE 0.11 Phase B Titanium-(IV)- TITANIUM DIOXIDE 6.00 oxid Unipure Yellow CI 77492 (IRON OXIDES) 0.50 LC 182 Unipure Red LC CI 77491 (IRON OXIDES) 0.10 381 Unipure Brown CI 77491 (IRON OXIDES), CI 77499 0.05 LC 889 (IRON OXIDES) Unipure Blue LC CI 77007 (ULTRAMARINE BLUE) 0.03 686 Phase C Eusolex ® OCR OCTOCRYLENE 8.00 Eusolex ® 9020 BUTYL 1.50 METHOXYDIBENZOYLMETHANE Miglyol 812 N CAPRYLIC/CAPRIC TRIGLYCERIDE 7.00 Eutanol G OCTYLDODECANOL 4.00 Montanov 202 ARACHIDYL ALCOHOL, BEHENYL 4.00 ALCOHOL, ARACHIDYLGLUCOSIDE Avocado Oil PERSEA GRATISSIMA (AVOCADO 2.00 OIL) Hydrolite-5 PENTYLENE GLYCOL 1.20 RonaCare ® AP BIS-ETHYLHEXYL 1.00 HYDROXYDIMETHOXY BENZYLMALONATE Bentone Gel STEARALKONIUM HECTORITE, 1.00 GTCC V PROPYLENE CARBONATE, CAPRYLIC/CAPRIC TRIGLYCERIDE Oxynex ® K liquid PEG-8, TOCOPHEROL, ASCORBYL 0.03 PALMITATE, ASCORBIC ACID, CITRIC ACID Phase D Simulgel EG SODIUM ACRYLATE/SODIUM 0.60 ACRYLOYLDIMETHYLTAURATE COPOLYMER, ISOHEXADECANE, POLYSORBATE 80 Phase E Fragrance q.s. Preservative q.s.

Procedure:

[0133] Disperse Keltrol slowly in the remainder of phase A while stirring. Add phase B and homogenize with an Ultra-Turrax T25 at a speed of approx. 17000 rpm for 5 min. Check that phase A/B is free of agglomerates. Heat phase A/B and phase C separately to 85° C. Add phase C to A/B while stirring and homogenize with an Ultra-Turrax T25 (speed slow-middle; approx. 9500 rpm) for about 2 min. At 55-60° C. add phase D while stirring. Cool down to room temperature while stirring and add phase E. Adjust pH to 6.7-6.9.

Example A6: Oil-in-Water Emulsion

[0134]

TABLE-US-00006 Ingredient INCI % w/w Phase A Pigment CI 77891, MICA, TIN OXIDE 1.00 according to Example 3 Pigment CI 77891, MICA, TIN OXIDE 1.00 according to Example 2 RonaFlair ® White SYNTHETIC SAPPHIRE 1.00 Sapphire Water, AQUA ad 100 demineralized Glycerol 85% GLYCERIN, AQUA 4.00 Hydrolite-5 PENTYLENE GLYCOL 2.00 RonaCare ® UREA, DISODIUM PHOSPHATE, 1.00 Biotin Plus BIOTIN, CITRIC ACID D-Panthenol PANTHENOL 0.50 RonaCare ® ECTOIN 0.30 Ectoin Methyl-4- METHYLPARABEN 0.15 hydroxybenzoate Phase B Montanov 68 CETEARYL ALCOHOL, 4.00 CETEARYL GLUCOSIDE Dow Corning CYCLOMETHICONE, 2.50 9040 Silicone DIMETHICONE CROSSPOLYMER Elastomer Blend Tegosoft DEC DIETHYLHEXYL CARBONATE 2.00 Cosmacol ELI C12-13 ALKYL LACTATE 2.00 Arlamol HD ISOHEXADECANE 2.00 Xiameter ® PMX- CYCLOPENTASILOXANE, 2.00 0345 CYCLOHEXASILOXANE Span 60 SORBITAN STEARATE 1.50 Lanette 0 CETEARYL ALCOHOL 1.00 Olive Oil, bio OLEA EUROPAEA 0.50 RonaCare ® AP BIS-ETHYLH EXYL 0.50 HYDROXYDIMETHOXY BENZYLMALONATE Propyl-4- PROPYLPARABEN 0.05 hydroxybenzoate Phase C Rhodicare S XANTHAN GUM 0.25 Phase D Fragrance PARFUM q.s.

Procedure:

[0135] Heat phase A and B separately to 75° C. Add phase C slowly to phase A while stirring until a homogeneous mixture is obtained. At 75° C. add phase B to phase A/C and homogenize for 1 min. (Ultra Turrax T25 at 8000 rpm). Cool down to 35° C. and add perfume. Cool down to room temperature while stirring. Adjust pH value between 5.0-5.5.

Example A7: Oil-in-Water Emulsion

[0136]

TABLE-US-00007 Ingredient INCI % w/w Phase A Water, AQUA ad 100 demineralized Chelating Agent 0.10 1,2-Propanediol PROPYLENE GLYCOL 4.00 Lecigel SODIUM ACRYLATES COPOLYMER, 1.00 LECITHIN RonaCare ® ECTOIN 0.50 Ectoin Phase B Sensanov ™ WR C20-22 ALKYL PHOSPHATE, C20-22 3.50 ALCOHOLS Tego ® Alkanol CETEARYL ALCOHOL 2.00 1618 RonaFlair ® SYNTHETIC FLUORPHLOGOPITE 2.00 SynMica M Pigment CI 77891, MICA, TIN OXIDE 1.00 according to Example 3 RonaCare ® AP BIS-ETHYLHEXYL 1.00 HYDROXYDIMETHOXY BENZYLMALONATE Tegosoft ® DC DECYL COCOATE 1.50 RonaCare ® METHOXYPHENYL T-BUTYLPHENYL 2.00 Pristine Bright ™ PROPANEDIOL Tegosoft CT CAPRYLIC/CAPRIC TRIGLYCERIDE 4.00 IPM ISO PROPYL MYRISTATE 2.00 Phase C TEA TRIETHANOLAMINE 0.18 Phase D Euxyl PE 9010 PHENOXYETHANOL, ETHYLHEXYL 0.80 GLYCERIN Xiameter ® CYCLOPENTASILOXANE 1.00 PMX-0245 Perfume q.s.

Procedure:

[0137] 1. Disperse Lecigel in water and add all the ingredients of A. [0138] 2. Heat A and B at 80° C. and mix well. [0139] 3. Add C while mixing and homogenize well. [0140] 4. Add Phase D at 35° C.

Example A8: Water-in-Silicone Emulsion

[0141]

TABLE-US-00008 Ingredient INCI % w/w Phase A Water, AQUA 44.00 demineralized RonaCare ® SODIUM CHLORIDE 1.00 Sodium Chloride 1,3-Butanediol BUTYLENE GLYCOL 5.00 Eumulgin SG SODIUM STEAROYL GLUTAMATE 0.50 Ethanol 96% ALCOHOL 4.00 Caffeine CAFFEINE 0.50 MinaCare Freshin METHYL DIISOPROPYL 0.40 PROPIONAMIDE RonaCare ® AQUA, ALCOHOL, LECITHIN, 3.00 Cyclopeptide-5 ECTOIN, CYCLOTETRAPEPTIDE-24 AMINOCYCLOHEXANE CARBOXYLATE Microcare PM2 PHENOXYETHANOL, 1.00 ETHYLPARABEN, METHYLPARABEN Phase B Xiameter ® DIMETHICONE 6.00 PMX-200 Silicone Fluid (10 cs) Xiameter ® CYCLOPENTASILOXANE, 8.00 PMX-0345 CYCLOHEXASILOXANE Bentone gel VS-5 CYCLOMETHICONE, QUATERNIUM-18 2.50 PC V HECTORITE, PROPYLENE CARBONATE Eusolex ® 2292 ETHYLHEXYL METHOXYCINNAMATE 5.00 Dow Corning 556 PHENYL TRIMETHICONE 5.00 Dow Corning ES PEG-10 DIMETHICONE 4.00 5612 RonaCare ® CAPRYLIC/CAPRIC TRIGLYCERIDE, 1.00 Poppy SE PAPAVER RHOEAS EXTRACT, TOCOPHEROL Oxynex ® ST DIETHYLHEXYL SYRINGYLIDENE 0.10 Liquid MALONATE, CAPRYLIC/CAPRIC TRIGLYCERIDE Phase C Silkflo 366 NF HYDROGENATED POLYDECENE 3.00 Abil EM 97 BIS-PEG/PPG-14/14 DIMETHICONE, 3.00 CYCLOPENTASILOXANE Colorona ® MICA, CI 77891, CI 77491 0.10 Oriental Beige RonaFlair ® BORON NITRIDE 1.00 Boroneige ® SF-3 Pigment CI 77891, MICA, TIN OXIDE 1.50 according to Example 1 Phase D Fragrance (q.s.) PARFUM 0.40

Procedure:

[0142] Prepare phase A (premix Minacare Freshin and Coffein in alcohol before adding to remaining ingredients). Prepare phase B then add C to B under stirring. Mix A with C+B. Add perfume.

Measurement of the HEV, VIS and IR-A Absorption of Examples A1.1 to A1.4

[0143] In order to obtain information regarding the protection potential of different formulations against IR-A or HEV light the transmission and reflection of the formulations are measured at different wavelengths. The formulations A1.1. to A1.4 containing interference pigments according to Examples 1 to 4 are put in a 100 μm cuvette (disintegration cuvette) and then measured in the UV-VIS-NIR spectrometer Lambda 900. The device parameters are summarized in the following table.

TABLE-US-00009 TABLE Device settings for the Lambda 900 Wavelength/nm 250-1450 Baseline Glycerin Transmission/Glycerin Reflection Spectral gap width/nm 4 Integration time/s 0.2 Increment/nm 0.5 Layer thickness of the sample 0.1 mm Temperature Room temperature Common Beam Depolarizer ON Method Measuring transmission and reflection Focusing T-focused/R-focused with lens

[0144] In the following are given the results of the of the HEV, VIS and IR-A absorption with the interference pigments according to the present invention.

1. Protection Against HEV Light in Oil-in-Water Formulation

[0145] The area under the measured transmission curve between 400-500 nm for HEV light is calculated and displayed as a bale plot. The lower the transmission the higher the protection of the formulation. The results are summarized in FIG. 1a and FIG. 1b.

[0146] Surprisingly, 5% of interference pigments according to Examples 1 to 4 show a reduction in the transmission of HEV light up to 24% and enhance therefore the protection against it. The best performance is measured with the interference pigment according to Example 3. The results show that, increasing the pigment concentration from 3 to 5% increase the protection against HEV light up to 10%

2. Protection Against VIS Light in Oil-in-Water Formulation

[0147] The area under the measured transmission curve between 400-800 nm for VIS light is calculated and displayed as a bale plot. The lower the transmission the higher the protection of the formulation.

[0148] The results are summarized in FIG. 2a and FIG. 2b.

[0149] 5% interference pigments show a reduction in the transmission of VIS light up to 21% and enhance therefore the protection against it. The best performance is measured with the interference pigment according to Example 1 followed by pigment of Example 4, followed by pigment of Example 3 and followed by pigment of Example 4.

[0150] The results show that, increasing the pigment concentration from 3 to 5% increase the protection against VIS light up to 10%.

3. Protection Against IR-A Light

[0151] The area under the measured transmission curve between 800-1450 nm for IR-A light is calculated and displayed as a bale plot. The lower the transmission the higher the protection of the formulation. The results are summarized in FIG. 3a and FIG. 3b.

[0152] 5% interference igments show a reduction in the transmission of IR-A light up to 26% and enhance therefore the protection against it. The best performance is measured with the pigment according to Example 3 followed by pigment according to Example 2, followed by pigment according to Example 1 and followed by pigment according to Example 4. The results show that, increasing the pigment concentration from 3 to 5% increase the protection against IR-A light up to 10%.