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External-use formulation for preventing bite of mosquito

An external preparation and anti-mosquito technology, which can be used in skin care preparations, cosmetic preparations, cosmetic preparations, etc., and can solve problems such as human insecurity

Inactive Publication Date: 2009-04-15
曾旭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pesticides belong to the category of pesticide management and are not safe for humans.

Method used

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  • External-use formulation for preventing bite of mosquito

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 formula 1 acetic acid cream

[0023] 20g acetic acid, 140g stearic acid, 50g glyceryl monostearate

[0024] White petrolatum 50g, liquid paraffin 20g, cetyl alcohol 20g, Span 60 5g,

[0025] Tween 60 60g, glycerin 100g, distilled water to 1000g

[0026] Preparation method: Melt white vaseline, cetyl alcohol, stearic acid, glyceryl monostearate, liquid paraffin, and Span on a water bath, and heat to 80°C to obtain an oil phase; separately take Tween, glycerin, add distilled water, The water bath was heated to 80°C to obtain the aqueous phase. Slowly add the water phase to the oil phase and stir while adding until it condenses. Acetic acid is added during the condensation process to obtain a cream containing acetic acid. The measured pH was 5.4.

Embodiment 2

[0027] Example 2 Formula 2 Lactic Acid Cream

[0028] Lactic acid 50g, stearyl alcohol 200g, petrolatum 250g, Tween 80 30g,

[0029] Glycerin 100g, urea 45g, ethylparaben 1g, distilled water to 1000g

[0030] Preparation method: Melt vaseline, ethylparaben, and stearyl alcohol on a water bath, and heat to 75°C to obtain an oil phase; separately take Tween 80, glycerin, and urea, add distilled water, and heat to 80°C in a water bath to obtain an aqueous phase. Slowly add the water phase to the oil phase and stir while adding until it condenses. Lactic acid is added during the condensation process to obtain a cream containing lactic acid. The measured pH was 6.0.

Embodiment 3

[0031] Example 3 Formula 3 Salicylic Acid Cream

[0032] Salicylic acid 3g, stearic acid 12.5g, glyceryl monostearate 17g, beeswax 5g,

[0033] 70g ozokerite, 420ml liquid paraffin, 70g white petrolatum, 10g aluminum distearate, 1g calcium hydroxide,

[0034] Ethylparaben 1g, urea 50g, distilled water to 1000g

[0035] Preparation method: Take stearic acid, glyceryl monostearate, beeswax, and ozokerite and heat and melt on a water bath, then add liquid paraffin, white petrolatum, and aluminum distearate, and heat to 85°C. In addition, dissolve calcium hydroxide, ethylparaben, and urea in distilled water, heat to 85°C, gradually add to the oil phase, and stir while adding. Add salicylic acid under stirring, and condense to obtain cream. The measured pH was 4.1.

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PUM

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Abstract

The invention discloses an external preparation for avoiding stings of mosquitoes. The preparation contains acid, and the pH value of the preparation is between 4 and 6. The external preparation has variety of preparation formulations. The experimental results prove that the effects for avoiding the mosquitoes can last for more than 15 hours. The external preparation does not contain any pesticide, and is safe and has no toxicity for a human body for long-time use.

Description

Technical field: [0001] The invention relates to an external preparation for preventing mosquito bites, in particular to an external preparation for skin with a pH value in the range of 4-6. Background technique: [0002] The mosquito repellents that are currently used to smear on the human body to prevent mosquito bites at home and abroad all contain insecticides, such as the main active ingredient of the commonly used human mosquito repellents is "DEET". [0003] "DEET" chemical name: N, N-diethyl-m-toluamide, DEET for short abroad, is a widely used insecticide. Spray it on skin or clothing to avoid bug bites. The general use amount of DEET is 5-30%, and the effective anti-mosquito time is 4-7 hours. [0004] Although studies have shown that DEET is effective in repelling mosquitoes, it makes mosquitoes feel uncomfortable, and it has been confirmed that mosquitoes with antennal sensilla of type A olfactory receptor neurons have a significant response to DEET. However, p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/20A61K8/24A61K8/36A61K8/362A61K8/365A61K8/368A61K8/67A61Q17/02
Inventor 曾旭
Owner 曾旭