COSMETIC COMPOSITION COMPRISING TWO OPTICAL BRIGHTENERS, METHOD, USE, AND KIT-OF-PARTS THEREOF

Abstract

A cosmetic composition is disclosed comprising a synthetic optical brightener and a naturally-derived optical brightener. Both brightener classes absorb and emit light at different wavelengths and possess in combination a superior effect. The combination enhances color brilliance on keratin fibers under daylight and artificial light conditions.

Claims

1. A cosmetic composition for keratin fibers, comprising two or more optical brighteners, wherein a) at least one optical brightener is selected from compounds having a light absorption maximum below or equal to 400 nm and a light emission maximum of 400 nm to 500 nm, and b) at least one optical brightener is selected from naturally-derived compounds having a light absorption maximum of 400 nm to 450 nm and a light emission maximum of 450 nm to 700 nm.

2. The composition of claim 1, wherein optical brightener is of a general structure ##STR00013## wherein R.sup.1 is selected from H, C.sub.1-C.sub.6 alkyl, NH.sub.2, SO.sub.3H, Cl, Br, I, ##STR00014## wherein R.sup.2-6 are independently selected from the list of R.sup.1, wherein R.sup.1-6 may or may not be equal, and wherein configuration at the double bond may be E or Z, or its salts.

3. The composition of claim 1, wherein optical brightener is an extract from Verbascum ssp.

4. The composition of claim 1, wherein optical brightener a) is ##STR00015## and/or its salts.

5. The composition of claim 1, wherein optical brightener b) is hydrolyzed Verbascum thapsus flower and/or Verbascum Thapsus extract.

6. The composition of claim 1, comprising cationic, anionic, zwitterionic, amphoteric, and/or non-ionic surfactants.

7. The composition of claim 1, wherein weight ratio of total anionic surfactant to total amphoteric surfactant is from 2.55 to 155.

8. The composition of claim 1, having a pH of 3.0 to 8.0.

9. The composition of claim 1, comprising linear and/or cyclic silicones and/or siliconols.

10. The composition of claim 1, comprising cationic conditioning polymers.

11. The composition of claim 1, comprising a compound of a general structure ##STR00016## wherein R.sup.9 is a linear or branched alkyl chain with a total carbon number of C.sub.3 to C.sub.12.

12. The composition of claim 1, comprising aminosilicone. ##STR00017##

13. (canceled)

14. A method of conferring shine, luster, and color brilliance to keratin fibers, comprising the steps of: a) applying the composition of claim 1 to keratin fibers during or after washing, b) massaging the composition into the keratin fibers for a time period of 10 seconds to 600 seconds, c) optionally rinsing the composition off of the keratin fibers, d) optionally drying the keratin fibers.

15. Kit-of-parts comprising the composition of claim 1, a conditioning composition for keratin fibers and/or a blow dryer.

16. The composition of claim 12, wherein the aminosilicone is selected from a. a compound of a general structure ##STR00018## wherein R.sup.15 is selected from OH, OCH.sub.3, and OSi(CH.sub.3).sub.3, R.sup.16 is selected from CH.sub.3, OCH.sub.3, O(Si(CH.sub.3).sub.2)x-R.sup.12, and OSi(CH.sub.3).sub.3, with the provision that if R.sup.15 or R.sup.16 are selected from OSi(CH.sub.3).sub.3, then all other R.sup.15 or R.sup.16 are selected from OSi(CH.sub.3).sub.3 and OCH.sub.3, M and n2 are independently of each other numbers 1 to 200, b. silicone graft copolymer comprising an organopolysiloxane segment as a main chain thereof and an unsaturated monomer-derived polymer segment as a side chain thereof, which is obtainable by firstly reacting an aminopropyl dimethicone with the thiolactone of acetyl homocysteine and then graft copolymerizing the thus obtained mercapto modified dimethicone with a mixture of N,Ndimethylacrylamide and N-t-butylacrylamide, c. an organopolysiloxane, wherein at least two silicon atoms in organopolysiloxane segments constituting a main chain of the organopolysiloxane are bound to poly(N-acylalkyleneimine) segments consisting of repeating units represented by the following general formula via alkylene group containing heteroatom: ##STR00019## wherein R.sup.17 is a hydrogen atom, an alkyl group having 1 to 22 carbon atoms, an aralkyl group, or an aryl group; and n3 is 2 or 3; wherein number-average molecular weight of the poly-(N-acylalkyleneimine) segment is from 1,200 to 5,500, wherein weight ratio of the organopolysiloxane segments (a) constituting the main chain to the poly-(N-acylalkyleneimine) segments (b), i.e., a/b, is from 35/65 to 60/40, wherein weight-average molecular weight of adjacent poly-(N-acylalkyleneimine) segments is from 1,300 to 5,500, and wherein weight-average molecular weight of the organopolysiloxane segment constituting the main chain is from 7,000 to 100,000.

Description

EXAMPLES

Example 1

[0114] The following cleansing compositions were prepared by conventional formulation techniques:

TABLE-US-00001 Comparative 1 Comparative 2 Inventive INCI [by weight] [by weight] [by weight] Sodium Laureth Sulfate 10.0% 10.0% 10.0% Sodium Lauroyl 3.0% 3.0% 3.0% Sarcosinate Lauryl Hydroxysultaine 1.0% 1.0% 1.0% Disodium 0.01% 0.01% Distyrylbiphenyl disulfonate* Hydrolyzed Verbascum 0.5% 0.49% Thapsus Extract** Water Ad 100.0% *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

[0115] The pH of all of the compositions was adjusted to 5.5 with HCl/NaOH.

[0116] Caucasian hair streaks were obtained from Fischbach+Miller Haar, Laupheim, Germany, having a length of about 21 cm. The hair streaks were equally colored with oxidative hair color marketed under the tradename Goldwell Topchic. Upon washing with a commercial shampoo marketed under the tradename Goldwell Dualsenses Deep Cleansing Shampoo, the hair streaks were air dried. 2 g of the above compositions were applied onto the pre-colored hair streaks and each streak was massaged for 60 s. The hair streaks were then rinsed-off with water and blow-dried with a conventional blow-drier.

[0117] The treated hair streaks were evaluated by a panel of 10 trained experts under two different light conditions: 1) under day-light conditions, and 2) under an artificial light source which is common in office buildings. As artificial light source a fluorescent lamp marketed under the trade name Lumilux Cool White by Osram Corp. was selected. The trained experts did not receive information in the treatment groups prior to their evaluation. The experts were asked to judge color brilliance. They were given a scale from 1 to 10 wherein 1 is a rating for poor performance and 10 is a rating for excellent performance. Judgement was performed against untreated streaks.

TABLE-US-00002 Com- Com- Com- Com- para- para- Inven- para- para- Inven- tive 1 tive 2 tive tive 1 tive 2 tive artifi- artifi- artifi- Panel- day- day- day- cial cial cial list # light light light light light light 1 4 5 7 6 7 9 2 3 5 6 7 8 10 3 5 4 5 5 6 8 4 3 4 6 5 6 7 5 4 3 5 6 6 7 6 4 5 7 6 5 7 7 6 5 8 7 7 9 8 6 4 7 5 7 8 9 3 4 6 5 6 8 10 5 6 6 7 6 7 Mean 4.3 4.5 6.3 5.9 6.4 8.0 value Stan- 1.16 0.85 0.95 0.88 0.84 1.05 dard devi- ation

[0118] Statistical evaluation of results was performed with one-way ANOVA combined with a Tukey's posthoc test with freely available software.

[0119] For the treatment groups under daylight conditions, there was no significant difference found between comparative 1 and comparative 2 (p>0.1). However, each comparative example performed significantly worse than the inventive example (p<0.01).

[0120] For the treatment groups under artificial light conditions, there was also no significant difference found between comparative 1 and 2 (p>0.1). Each comparative example performed significantly worse than the inventive example (p<0.01).

[0121] As a result, the inventive example was superior under daylight and artificial light conditions in terms of color brilliance as shown by superior judgements by experts.

Example 2

[0122] The following leave-in treatment for hair was prepared by conventional formulation techniques.

TABLE-US-00003 Ingredients % by weight Trisiloxan 12.0% Cyclopentasiloxane 9.0% Dimethiconol 1.5% Polyquaternium 37 1.0% Ethylhexyl glycerine 0.1% Phenoxyethanol 0.70% Disodium Distyrylbiphenyl disulfonate* 0.05% Hydrolyzed V. thapsus flower** 0.25% Water ad 100.0% *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

[0123] The pH of the above composition was adjusted to 5.0 with HCl/NaOH.

Example 3

[0124] The following leave-in treatment for hair was prepared by conventional formulation techniques.

TABLE-US-00004 Ingredients % by weight Trisiloxan 12.0% Cyclopentasiloxane 9.0% Dimethiconol 1.5% Polyquaternium 37 1.0% Ethylhexyl glycerine 0.1% Phenoxyethanol 0.70% Disodium Distyrylbiphenyl disulfonate* 0.05% Hydrolyzed V. thapsus flower** 0.25% Basic Blue 124 0.10% Water ad 100.0% *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

[0125] The pH of the above composition was adjusted to 5.0 with HCl/NaOH.

Example 4

[0126] The following cleansing composition was prepared by conventional formulation techniques.

TABLE-US-00005 Ingredients % by weight Sodium laureth sulfate 12.5 Sodium lauroyl sarcosinate 1.0 Lauryl hydroxysultaine 2.0 Ethylhexylglycerin 1.0 Polyquaternium 10 0.5 Amodimethicone microemulsion* 0.6 Sodium chloride 2.0 PEG-150 Pentaerythrityl Tetrastearate 0.25 Trideceth-10 0.5 Butylene glycol 0.25 Disodium Distyrylbiphenyl disulfonate** 0.05 Hydrolyzed V. thapsus extract*** 0.45 Preservatives q.s. Water ad 100 *X-52-2265 from Shin-Etsu Corp. **Tinopal CBS-X from BASF Corp. ***Luminescine from Phenbiox Corp.

Example 5

[0127] The following hair conditioning composition was prepared by conventional formulation techniques.

TABLE-US-00006 Ingredients % by weight Cetearyl alcohol 5.0 Light mineral oil 2.0 Ceteareth-10 0.5 Cetrimonium chloride 2.0 Quaternium 80 2.0 Propylen glycol 0.5 Phenoxyethanol 0.70 Disodium Distyrylbiphenyl disulfonate* 0.05 Hydrolyzed V. thapsus flower** 0.25 Basic Blue 124 0.10 Water ad 100.0 *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

[0128] The pH of the above composition was adjusted to 5.0 with HCl/NaOH.

Example 6

[0129] The following hair conditioning composition was prepared by conventional formulation techniques.

TABLE-US-00007 Ingredients % by weight Cetearyl alcohol 5.0 Light mineral oil 2.0 Ceteareth-10 0.5 Stearamidopropyl dimethylamine 2.0 Quaternium 80 2.0 Polyquaternium 10 0.2 Propylene glycol 0.5 Phenoxyethanol 0.70 Disodium Distyrylbiphenyl disulfonate* 0.05 Hydrolyzed V. thapsus flower** 0.25 Basic Blue 124 0.10 Water ad 100.0 *Tinopal CBS-X by BASF Corp. **Luminescine by PhenBiox Corp.

[0130] The pH of the above composition was adjusted to 5.0 with HCl/NaOH.