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Microcapsule containing dimethyl phthalate, mosquito repellent water and preparation method thereof

A technology of microcapsules and mosquito repellent, applied in the field of microcapsules containing mosquito repellent, mosquito repellent water and its preparation, can solve the problem of non-renewability and biodegradability, non-compliance with the principle of sustainable development, unsuitable Mosquito repellent water and other problems, to achieve the effect of prolonging the effective time of repelling mosquitoes, reducing adverse reactions, and lasting mosquito repellent effect

Active Publication Date: 2016-11-23
广州睿森生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The patent with publication number CN 103305953A has invented a kind of anti-mosquito viscose fiber, containing anti-mosquito microcapsules, wherein the core material used includes mosquito repellent ester, and the capsule material is polyurethane, polyester, polyurea, polyamide or Urea-formaldehyde resin, although the invention has achieved a slow-release effect, the capsule material used is a synthetic polymer material with high cost, no renewability and biodegradability, and does not meet the principle of sustainable development, and the invention is to prepare a A kind of viscose fiber, not suitable for the preparation of mosquito repellent water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Preparation of microcapsules: Add 4g mosquito repellent ester to 20mL chitosan acetate solution with a mass concentration of 0.4g / mL, stir well at room temperature for 2h to dissolve completely, and then add 10mL mass concentration of 0.4g / mL The γ-polyglutamic acid solution in mL was continuously stirred for 2 hours, then centrifuged at 20,000 rpm for 30 minutes, the supernatant was removed, the resulting precipitate was washed with water several times, and finally freeze-dried.

[0039] 2. Mosquito repellent water containing mosquito repellent microcapsules:

[0040] Each ingredient is composed of the following raw materials in mass percentage: mosquito repellent ester microcapsules 25%, propylene glycol 20%, polyethylene glycol 2%, hyaluronic acid 5%, aloe extract 2%, rose hydrosol 0.5%, deionized water make up.

[0041]The preparation method is: mix propylene glycol, polyethylene glycol and water evenly, heat at 70°C, stir until completely dissolved, and cool to...

Embodiment 2

[0043] 1. Preparation of microcapsules: Add 7g of mosquito repellent to 40mL chitosan acetate solution with a mass concentration of 0.4g / mL, fully stir at room temperature for 3h to dissolve completely, and then add 30mL with a mass concentration of 0.4g / mL The γ-polyglutamic acid solution in mL was continuously stirred for 3 hours, then centrifuged at 20,000 rpm for 30 minutes, the supernatant was removed, the resulting precipitate was washed with water several times, and finally freeze-dried.

[0044] 2. Mosquito repellent water containing mosquito repellent microcapsules:

[0045] Each ingredient is composed of the following raw materials in mass percentage: Mosquito repellent microcapsules 20%, propylene glycol 15%, polyethylene glycol 1.3%, hyaluronic acid 7%, aloe extract 3.5%, rose hydrosol 0.7%, deionized water make up.

[0046] The preparation method is as follows: mix propylene glycol, polyethylene glycol and water evenly, heat at 80°C, stir until completely dissolv...

Embodiment 3

[0048] 1. Preparation of microcapsules: Add 10g of mosquito repellent ester to 60mL of chitosan acetate solution with a mass concentration of 0.4g / mL, fully stir at room temperature for 4h to completely dissolve, and then add 50mL of a mass concentration of 0.4g / mL The γ-polyglutamic acid solution in mL was continuously stirred for 4 hours, then centrifuged at 20,000 rpm for 30 minutes, the supernatant was removed, the resulting precipitate was washed with water several times, and finally freeze-dried.

[0049] 2. Mosquito repellent water containing mosquito repellent microcapsules:

[0050] Each ingredient is composed of the following raw materials by mass percentage: mosquito repellent ester microcapsules 15%, propylene glycol 18%, polyethylene glycol 0.5%, hyaluronic acid 3%, aloe extract 5%, rose hydrosol 0.3%, deionized water make up.

[0051] The preparation method is: mix propylene glycol, polyethylene glycol and water evenly, heat at 75°C, stir until completely dissol...

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PUM

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Abstract

The invention provides a microcapsule containing dimethyl phthalate, mosquito repellent water and a preparation method thereof. The microcapsule disclosed by the invention comprises dimethyl phthalate, chitosan and gamma-polyglutamic acid. The dimethyl phthalate is coated by utilizing chitosan and polyglutamic acid and is separated from skin, so that irritation to skin is reduced, slow release of the mosquito repellent is realized, and then a mosquito repellent effect is lasting. The mosquito repellent water disclosed by the invention comprises the following main components: the microcapsule containing dimethyl phthalate, aloe extract, hyaluronic acid, polyethylene glycol, propylene glycol, rose hydrosol, water and the like, has the effects of moisturizing, resisting bacteria, diminishing inflammation, relieving itching and the like and is safe and non-toxic. The microcapsule is simple in preparation process, and the wall material has renewability and biodegradability and is non-irritating to skin. According to the mosquito repellent water disclosed by the invention, the dimethyl phthalate is separated from the skin by utilizing the microcapsule, so that bad reactions are reduced; and moreover, a slow release aim of the dimethyl phthalate is achieved, the concentration of the dimethyl phthalate in toning lotion can be reduced, and the effective mosquito repellent time is prolonged.

Description

technical field [0001] The invention relates to the field of daily chemical products, in particular to a mosquito repellent water and a preparation method thereof, in particular to a microcapsule containing mosquito repellent ester, the mosquito repellent water and a preparation method thereof. Background technique [0002] In daily life, mosquito bites and blood-sucking bring a lot of troubles, ranging from causing skin swelling, itching and redness, to spreading diseases and endangering health. Therefore, people have been devoting themselves to the research of mosquito control. At present, DEET is widely used as a mosquito repellent, but people find that there are some problems with DEET during use. First, it has certain toxic and side effects, which may cause symptoms such as erythema and urticaria in users; It has certain solubility to chemical fiber clothing and paint; thirdly, it has certain permeability and irritation to the skin. In view of these problems of DEET, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/44A61K8/73A61K8/88A61K8/97A61Q17/02A61Q17/00A61Q19/00
CPCA61Q17/005A61Q17/02A61Q19/00A61K8/44A61K8/735A61K8/736A61K8/88A61K8/97A61K2800/413
Inventor 魏坤王晓慧秦烨芝胡露谢水林
Owner 广州睿森生物科技有限公司
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