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Gardenia red pigment stably adsorbed on surface of silica, and cosmetic composition containing same

A technology of silicon dioxide and gardenia red, which is used in medical preparations containing active ingredients, treatment of dyed low-molecular-weight organic compounds, cosmetics, etc. Wide application range, improved thermal stability

Pending Publication Date: 2020-11-20
AMOREPACIFIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal stability of gardenia red pigment is slightly insufficient, especially having the disadvantage of agglomeration at low pH
In addition, since the gardenia red pigment is water-soluble, it can only be used in the water phase in cosmetic compositions and is limited.

Method used

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  • Gardenia red pigment stably adsorbed on surface of silica, and cosmetic composition containing same
  • Gardenia red pigment stably adsorbed on surface of silica, and cosmetic composition containing same
  • Gardenia red pigment stably adsorbed on surface of silica, and cosmetic composition containing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Preparation of gardenia red pigment adsorbed on amine group-introduced silica

[0036] Silica and a silane compound represented by the following Chemical Formula 2 are reacted under reflux in water or an organic solvent (ethanol or hexane) for 12 hours to prepare an amine group-introduced silica, and after the amine group-introduced silica is prepared, about approx. Silica introduced into the amine group was added to an aqueous solution in which 10% of the gardenia red pigment was dissolved in water with 5 times the mass of the silica, stirred for 30 minutes for adsorption, and after filtration, an organic solvent (ethanol or hexane) was used. ) and water are washed successively to remove the unadsorbed gardenia red pigment, thereby preparing the gardenia red pigment (by weight ratio, [gardenia red pigment] that is adsorbed on the silicon dioxide introduced into the amine group: Silica] = 5:95) (reference: Soto-Cantu E et al., Langmuir, 28(13):5562-9, 2012).

[0037] ...

Embodiment 2

[0039] Preparation of gardenia red pigment adsorbed on amine group-introduced silica

[0040] Silica and a silane compound represented by the following Chemical Formula 3 are reacted under reflux in water or an organic solvent (ethanol or hexane) for 12 hours to prepare an amine group-introduced silica, and after the silica mass is about Silica introduced into the amine group was added to an aqueous solution in which 10% of the gardenia red pigment was dissolved in water with 5 times the mass of the silica, stirred for 30 minutes for adsorption, and after filtration, an organic solvent (ethanol or hexane) was used. ) and water are washed successively to remove the unadsorbed gardenia red pigment, thereby preparing the gardenia red pigment (by weight ratio, [gardenia red pigment] that is adsorbed on the silicon dioxide introduced with amine groups: [introduced with amine groups] Silica] = 5:95).

[0041] [Chemical formula 3]

[0042]

Embodiment 3

[0043] Preparation of gardenia red pigment adsorbed on carboxyl group-introduced silica

[0044] Silica and a silane compound represented by the following Chemical Formula 4 are reacted under reflux in water or an organic solvent (ethanol or hexane) for 12 hours to prepare a carboxyl group-introduced silica. 10% of the gardenia red pigment was dissolved in an aqueous solution of 5 times the mass of silica, and the silica introduced with the carboxyl group was added, stirred for 30 minutes for adsorption, and after filtration, an organic solvent (ethanol or hexane) and an organic solvent (ethanol or hexane) were used. The water is sequentially washed to remove the unadsorbed gardenia red pigment, thereby preparing the gardenia red pigment adsorbed on the carboxyl group-introduced silica.

[0045] [Chemical formula 4]

[0046]

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PUM

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Abstract

The present invention relates to a gardenia red pigment stably adsorbed on the surface of silica, and a cosmetic composition containing same, and more specifically, to a gardenia red pigment stably adsorbed on the surface of silica, the silica surface having a specific reactive group introduced thereto, and a cosmetic composition containing same. Compared to conventional gardenia red pigments, thegardenia red pigment stably adsorbed on the surface of silica, according to the present invention, has improved thermal stability, does not aggregate at a low pH level, and may be applied to cosmeticcompositions other than water-phase cosmetic compositions, and thus can have a further expanded range of use.

Description

technical field [0001] The present invention relates to a gardenia red pigment stably adsorbed on the surface of silica and a cosmetic composition containing the same. Its cosmetic composition. Background technique [0002] In the Food Sanitation Law, natural colorants are defined as "substances that are added, mixed, soaked, or used by other methods for the preparation, processing, and preservation of food." According to the U.S. Food, Drug, and Cosmetic Act (FD&C Act), natural pigments are used in food, cosmetics, pharmaceuticals, etc. in the form of pigments, pigments, and other substances as substances that can develop color. Recently, the application fields of the natural pigments have gone beyond food, cosmetics, and pharmaceuticals, and have rapidly developed into fibers, daily necessities, building materials, decorative items, stationery, and toys, etc. As a result, the definition of natural pigments is also changing. . [0003] Unlike synthetic pigments and tar p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/25A61K8/58A61Q19/00
CPCA61K8/25C09C3/08A61K2800/623A61K8/0241A61K2800/43A61Q1/02A61Q5/065A61K8/585A61Q19/00A61Q1/06A61Q1/08A61Q1/10
Inventor 俞载元申美淑金容震李泰龙
Owner AMOREPACIFIC CORP
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