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Hydrogel microcapsule with sunscreen effect

A technology of microcapsules and hydrogels, applied in skin care preparations, cosmetics, cosmetic preparations, etc., can solve the problems of unstable natural extract sunscreens and low safety performance, and achieve convenient quality control and wide application. , Easy to carry

Active Publication Date: 2015-03-25
CHONGQING PELLETS TECHN & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention aims at the technical problem that the existing sunscreen products often use chemical sunscreens with low safety performance, and the natural extract sunscreens are unstable, and provides a kind of package with higher safety performance. Hydrogel microcapsules with sunscreen efficacy of natural extract sunscreen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The capsule wall materials include 28 g of agar, 7 g of methylcellulose, 0.5 g of spinach green pigment and 0.5 g of flash powder; the capsule core materials include 7.5 g of mineral oil and 1.5 g of red cardamom extract. The capsule wall material can be added to 300 mL of 50% ethanol aqueous solution, heated and stirred evenly; the capsule core material can be heated to 70°C, stirred evenly, and homogenized under a homogenization pressure of 45MPa for 3 minutes. The hydrogel microcapsules are prepared by the dropping method, the uniformly stirred capsule wall material solution flows out from the dripper, and the homogeneous capsule core material flows out from the dripper to form a sandwich liquid column, and then the liquid is cut off with a cutter Columns, forming droplets, were prepared as a series of hydrogel microcapsules with a diameter of 3 mm.

[0020] It is verified by experiments that the hydrogel microcapsules with sunscreen effect prepared in this examp...

Embodiment 2

[0022] The capsule wall material included 30 g of agar, 10 g of chitosan, 1 g of bamboo chlorophyll, and 1 g of glitter powder; the capsule core material included 6 g of mineral oil and 1 g of astaxanthin. The capsule wall material can be added to 300 mL of 75% ethanol aqueous solution, heated and stirred evenly; the capsule core material can be heated to 75°C, stirred evenly, and homogenized under a homogenization pressure of 50MPa for 4 minutes. The hydrogel microcapsules are prepared by the dropping method, the uniformly stirred capsule wall material solution flows out from the dripper, and the homogeneous capsule core material flows out from the dripper to form a sandwich liquid column, and then the liquid is cut off with a cutter Columns, forming droplets, were prepared as a series of hydrogel microcapsules with a diameter of 6 mm.

[0023] It is verified by experiments that the hydrogel microcapsules with sunscreen effect prepared in this example have a good embeddin...

Embodiment 3

[0025] The capsule wall materials include 46 g of karaya gum, 16 g of chitosan, 1 g of spinach green pigment and 1 g of flash powder; the capsule core materials include 7 g of glyceryl stearate and 1 g of honeysuckle extract. The capsule wall material can be added to 400 mL of 65% ethanol aqueous solution, heated and stirred evenly; the capsule core material can be heated to 75°C, stirred evenly, and homogenized under a homogenization pressure of 55MPa for 5 minutes. The hydrogel microcapsules are prepared by the dropping method, the uniformly stirred capsule wall material solution flows out from the dripper, and the homogeneous capsule core material flows out from the dripper to form a sandwich liquid column, and then the liquid is cut off with a cutter Columns, forming droplets, prepared as a series of hydrogel microcapsules with a diameter of 8 mm.

[0026] It is verified by experiments that the hydrogel microcapsules with sunscreen effect prepared in this example have ...

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Abstract

The invention provides a hydrogel microcapsule with a sunscreen effect, and particularly relates to a core-shell microcapsule, wherein the capsule wall is green and semitransparent, the capsule wall material comprises gel materials, a water-soluble film-forming material, natural marennin and glitter powder; the capsule core is white and non-transparent and the core material comprises a grease material and sunscreen components which include fructus galangae extract, astaxanthin or honeysuckle extract; and the hydrogel microcapsule is prepared through a dropping method. The hydrogel microcapsule with the sunscreen effects is beautiful and unique in appearance, high in embedding rate and capable of realizing effective protection on a natural extract sun-screening agent. Moreover, the natural extract sun-screening agent packaged inside the hydrogel microcapsule realizes product safety while bringing good sun-screening effects, does not induce skin diseases, and has good market prospect.

Description

technical field [0001] The invention belongs to the field of microcapsules, and in particular relates to a hydrogel microcapsule with sunscreen function. [0002] Background technique [0003] Sunlight is divided into UVA zone and UVB zone. These long-wave or medium-wave ultraviolet rays are the main cause of premature aging of the skin. They can penetrate the dermis and make the skin tanned or even sunburned, resulting in damage to skin lipids and collagen. , causing skin peeling, erythema, tanning and other phenomena, which may induce the onset of skin cancer. Some of these damages to the skin are irreversible and irreparable. In order to reduce the damage to the skin from the ultraviolet rays in the sun, sunscreens are born accordingly. [0004] Sunscreen refers to cosmetics that add sunscreen agents that can block or absorb ultraviolet rays to prevent skin from being tanned and sunburned. The sunscreens used in existing sunscreens are mostly synthetic sunscreens, such...

Claims

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Application Information

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IPC IPC(8): A61K8/11A61K8/97A61K8/92A61K8/35A61Q17/04
Inventor 袁彦洁
Owner CHONGQING PELLETS TECHN & TRADE
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