Microcapsule sunscreen cream and preparation method thereof

A technology of microcapsules and sunscreens, applied in the field of microcapsules sunscreens and its preparation, can solve the problems of human body discomfort, poor human body sensory performance, poor ultraviolet absorption effect, etc., and achieve slow release speed, reduce discomfort, and high SPF value effect

Inactive Publication Date: 2019-07-26
ZHONGSHAN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sunscreen agent in this sunscreen will directly contact the skin in a large area, causing discomfort to the human body, and the sensory performance of the human body is poor. There are problems such as limited sunscreen effect of the sunscreen agent, poor ultraviolet absorption effect, and low SPF (sun protection factor) value.

Method used

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  • Microcapsule sunscreen cream and preparation method thereof
  • Microcapsule sunscreen cream and preparation method thereof
  • Microcapsule sunscreen cream and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Described preparation method comprises the steps:

[0033] (1) Weighing: Weigh 5g sunscreen microcapsules, 1g glycerin, 1g propylene glycol, 0.1g allantoin, 0.01g EDTA-2Na, 0.1g methyl p-hydroxybenzoate, 0.1g p-hydroxybenzoic acid according to the weight percentage Propyl ester, 0.5g jojoba oil, 1.5g emulsifier, 0.5g grapefruit oil, 1g titanium dioxide, 89.19g deionized water;

[0034] (2) Place the methyl p-hydroxybenzoate and propyl p-hydroxybenzoate described in step (1) in the first vessel, add propylene glycol, and heat in a water bath at 60° C. until the solid in the first vessel dissolves;

[0035] (3) Continue to add glycerol, allantoin, EDTA-2Na, sunscreen microcapsules, and deionized water in the first vessel described in step (2), and heat in a water bath at 60°C until The solid in the first container is dissolved, stirred evenly, and mixture A is obtained;

[0036] (4) Put the jojoba oil, grapefruit oil, and emulsifier described in step (1) into the second...

Embodiment 2

[0040] Described preparation method comprises the steps:

[0041] (1) Weighing: Weigh 20g sunscreen microcapsules, 4g glycerin, 1g propylene glycol, 0.25g allantoin, 0.02g EDTA-2Na, 0.1g methylparaben, 0.1g propylparaben, 1.5g Jojoba oil, 3g emulsifier, 3g grapefruit oil, 67.03g deionized water;

[0042] (2) Place the methyl p-hydroxybenzoate and propyl p-hydroxybenzoate described in step (1) in the first container, add propylene glycol, and heat in a water bath at 70° C. until the solid in the first container dissolves;

[0043] (3) Continue to add glycerol, allantoin, EDTA-2Na, sunscreen microcapsules, and deionized water in the first vessel described in step (2), and heat in a water bath at 70°C until The solid in the first container is dissolved, stirred evenly, and mixture A is obtained;

[0044] (4) Put the jojoba oil, grapefruit oil, and emulsifier described in step (1) into the second container, heat in a water bath at 70°C, and stir evenly to obtain mixture B;

[0...

Embodiment 3

[0048] Described preparation method comprises the steps:

[0049] (1) Weighing: Weigh 20g sunscreen microcapsules, 5g glycerin, 3g propylene glycol, 0.3g allantoin, 0.07g EDTA-2Na, 0.3g methylparaben, 0.3g propylparaben, 1.5g Jojoba oil, 5g emulsifier, 3g grapefruit oil, 61.53g deionized water;

[0050] (2) Place the methyl p-hydroxybenzoate and propyl p-hydroxybenzoate described in step (1) in the first container, add propylene glycol, and heat in a water bath at 70° C. until the solid in the first container dissolves;

[0051] (3) Continue to add glycerol, allantoin, EDTA-2Na, sunscreen microcapsules, and deionized water in the first vessel described in step (2), and heat in a water bath at 70°C until The solid in the first container is dissolved, stirred evenly, and mixture A is obtained;

[0052] (4) Put the jojoba oil, grapefruit oil, and emulsifier described in step (1) into the second container, heat in a water bath at 70°C, and stir evenly to obtain mixture B;

[0053...

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Abstract

The invention relates to the field of sunscreen creams, in particular to a microcapsule sunscreen cream and a preparation method thereof. The microcapsule sunscreen cream is prepared from, by weight percentage, sunscreen microcapsules, glycerin, propylene glycol, allantoin, EDTA-2Na methyl p-hydroxybenzoate, propyl p-hydroxybenzoate, jojoba oil, an emulsifier, camellia oil and deionized water. Compared with an existing sunscreen cream, the microcapsule sunscreen cream has advantages that the release rate of a sunscreen agent in the sunscreen cream can be decreased, discomfort of users is relieved, and great ultraviolet absorbing effects and high SPF (sun protection factor) value are achieved.

Description

technical field [0001] The invention relates to the field of sunscreen, in particular to a microcapsule sunscreen and a preparation method thereof. Background technique [0002] The destruction of the atmospheric ozone layer makes people subject to more ultraviolet radiation. Ultraviolet (UV) in sunlight is mainly divided into three bands, namely short-wave UVC (200-280nm), medium-wave UVB (280-320nm) and long-wave UVA. (320~400nm). The medium and long-wave ultraviolet rays UVB and UVA can penetrate the cloud layer and the ozone layer to reach the ground surface, causing lesions in the epidermis and superficial dermis of people's skin. Especially in the medium-wave UVB (280-320nm) band, medium-wave UVB can cause DNA damage in keratinocytes, causing dysplasia in keratinocytes, disappearance of epidermal protrusions, and inflammatory reactions. In addition, medium-wave UVB has more pronounced effects on normal human melanocytes (MCS) and keratinocytes (KCS), which may induce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/92A61K8/49A61K8/44A61K8/37A61K8/34A61K8/11A61Q17/04
CPCA61K8/11A61K8/345A61K8/37A61K8/44A61K8/4946A61K8/922A61K2800/412A61K2800/56A61Q17/04
Inventor 徐春涛
Owner ZHONGSHAN POLYTECHNIC
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