Long-acting sunscreen mosquito-repellent emulsion and preparation method thereof

A mosquito repellent and long-acting technology is applied in the field of long-acting sunscreen mosquito repellent lotion and its preparation, which can solve the problems of transdermal absorption and unsustainable repellent effect, so as to prolong the effective protection time, prevent the acne-causing effect, and improve the sunscreen effect. Effect

Pending Publication Date: 2022-08-05
闫朝杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, ester mosquito repellent has good safety and good mosquito repellent effect, but has the defects of transdermal absorption and long-lasting repellent effect

Method used

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  • Long-acting sunscreen mosquito-repellent emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] To prepare long-lasting sunscreen and mosquito repellent particles:

[0036] S1. Add isopropyl tris (dioctyl pyrophosphate acyloxy) titanate into deionized water, disperse evenly, immediately add nanoporous zinc oxide, stir for 30min, suction filtration, and vacuum dry; The mass ratio of zinc, titanate and deionized water is 15:0.5:100;

[0037] S2. Heat and melt 3-(4-methylbenzylidene) camphor, add it together with cinnamon oil and ethyl butylacetamidopropionate into a circulating pneumatic mixer, mix at 75°C for 5 minutes, and then add surface modification nanoporous zinc oxide, continue to mix for 20min, discharge, and cool to obtain a core layer;

[0038] S3. Dissolve lignin in acetone, spray and deposit it on the surface of the core layer to form a shell layer, and dry in vacuum.

[0039] In the long-acting sunscreen and mosquito repellent particles, the mass ratio of nanoporous zinc oxide, 3-(4-methylbenzylidene) camphor, cinnamon oil, ethyl butylacetaminopropio...

Embodiment 2

[0046] To prepare long-lasting sunscreen and mosquito repellent particles:

[0047] S1. Add isopropyl tris (dioctyl pyrophosphate acyloxy) titanate into deionized water, disperse evenly, immediately add nanoporous zinc oxide, stir for 30min, suction filtration, and vacuum dry; The mass ratio of zinc, titanate and deionized water is 20:0.7:100;

[0048] S2. Heat and melt 3-(4-methylbenzylidene) camphor, add cinnamon oil and ethyl 10-undecenoylamino methyl propionate into a circulating pneumatic mixer, and mix at 72°C for 5min , then add the surface modified nanoporous zinc oxide, continue to mix for 30min, discharge and cool to obtain the core layer;

[0049] S3. Dissolve lignin in acetone, spray and deposit it on the surface of the core layer to form a shell layer, and dry in vacuum.

[0050] In the long-acting sunscreen and mosquito repellent particles, the mass ratio of nanoporous zinc oxide, 3-(4-methylbenzylidene) camphor, cinnamon oil, ethyl 10-undecenoylaminomethylprop...

Embodiment 3

[0057] To prepare long-lasting sunscreen and mosquito repellent particles:

[0058] S1. Add isopropyl tris (dioctyl pyrophosphate acyloxy) titanate into deionized water, disperse evenly, immediately add nanoporous alumina, stir for 40min, suction filtration, and vacuum dry, then the nanoporous oxidation The mass ratio of aluminum, titanate and deionized water is 18:0.6:100;

[0059] S2. Heat and melt 3-(4-methylbenzylidene) camphor, add it to a circulating pneumatic mixer together with cinnamon oil and ethyl butylacetamidopropionate, mix at 75°C for 4 minutes, and then add surface modification nanoporous alumina, continued to mix for 25min, discharged, cooled to obtain a core layer;

[0060] S3. Dissolve lignin in acetone, spray and deposit it on the surface of the core layer to form a shell layer, and dry in vacuum.

[0061] In the long-acting sunscreen and mosquito repellent particles, the mass ratio of nanoporous alumina, 3-(4-methylbenzylidene) camphor, cinnamon oil, eth...

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Abstract

The invention relates to the field of cosmetics, and provides a long-acting sunscreen mosquito-repellent emulsion and a preparation method thereof. The emulsion comprises a component A and a component B, the component A comprises liquid paraffin, vaseline, stearic acid monoglyceride, hexadecanol, beta-carotene and dipotassium glycyrrhizinate, and the component B comprises long-acting sunscreen mosquito-repellent particles, glycerol, polyethylene glycol, an OP-10 emulsifier and deionized water. The long-acting sunscreen mosquito-repellent particle is of a core-shell structure, a core layer is porous nanoparticles loaded with 3-(4-methylbenzylidene) camphor, cinnamon oil and an ester mosquito repellent, and a shell layer is lignin. The emulsion cosmetic prepared by the invention realizes long-acting sunscreen and mosquito repelling while ensuring the use safety, and not only has a high sunscreen index, but also has a long effective mosquito-repelling protection time.

Description

technical field [0001] The invention belongs to the technical field of cosmetics and provides a long-acting sunscreen and mosquito repellent lotion and a preparation method. Background technique [0002] Sunscreen refers to the use of sunscreen products to block or absorb ultraviolet rays in sunlight to prevent skin from tanning, aging, and sunburn. Although ultraviolet rays can kill bacteria on the skin surface, excessive ultraviolet rays can damage skin cells, causing vasodilation, congestion, and even cell edema and exudation on the superficial surface of the skin, which can cause skin diseases and even skin cancer in severe cases. Especially in hot summer, sun protection is especially important. In addition, summer is also a time when mosquitoes are particularly rampant. Mosquito bites not only cause itching and discomfort, but also may spread a variety of diseases. Therefore, mosquito prevention in summer is also an important issue. [0003] Commonly used sunscreen pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/35A61K8/72A61K8/92A61Q17/02A61Q17/04
CPCA61K8/72A61K8/35A61K8/922A61Q17/04A61Q17/02A61K2800/624A61K2800/56A61K2800/592Y02A50/30
Inventor 闫朝杰王伟强刘新华
Owner 闫朝杰
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