Natural non-toxic mosquito repellent products and preparation method thereof

A mosquito repellent, natural technology, applied in the directions of botanical equipment and methods, disinfection, pharmaceutical formulations, etc., can solve the problems of high cost, insect repellents do not have itching and swelling, and achieve the effect of simple and convenient use.

Inactive Publication Date: 2019-10-22
唐山市新雅诺生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this kind of mosquito repellent can repel mosquitoes, it still contains the highly toxic mosquito repellent ingredients "DEET or pyrethroids", etc.,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Cut the trunks or branches of casuarina, eucalyptus and lychee wood, put them into the pyrolysis furnace according to the mass of 1600Kg, 200Kg, and 200Kg, and pyrolyze them at 380-400°C for 14-20 hours under air isolation. The flue gas mixture drawn from the furnace is condensed and left to stand for 6 months, the surface layer and the bottom layer (about 20%) are removed, and the middle layer obtained by layering is taken, which is the stock solution of wood vinegar.

[0031] Part of the stock solution of wood vinegar is distilled twice, filtered after distillation, to obtain double-distilled wood vinegar; the distillation temperature is 98-102°C, and the yield of the second-distilled wood vinegar relative to the stock solution of wood vinegar is not more than 90%. The sodium hydroxide aqueous solution is added dropwise to the double-distilled wood vinegar liquid to neutralize the pH value between 5-6 to obtain the double-distilled neutralized wood vinegar liquid.

[...

Embodiment 2

[0034]Get the secondary distillation neutralized wood vinegar liquid 50g prepared in Example 1, add DMSO 2g, menthol 1g, butanediol 5g, sodium dodecylbenzene sulfonate 8g, be contained in the bottle that has spray head, make Get mosquito repellent spray. After being bitten by mosquitoes, spray it on the bite, and it will stop itching within 1-2 minutes after spreading it evenly, and the anti-itching effect is obvious.

Embodiment 3

[0036] Get 70g of wood vinegar liquid stoste in Example 1 and undergo primary distillation, filter after distillation, obtain primary distillation wood vinegar liquid, distillation temperature is 98-102 ℃. The sodium hydroxide aqueous solution is added dropwise to the primary distillation wood vinegar solution to neutralize the pH value between 5-6 to obtain the primary distillation neutralization wood vinegar solution.

[0037] Take 50g of neutralized wood vinegar, 45g of pregelatinized starch, 15g of sodium carboxymethyl cellulose, 1g of magnesium stearate, 2g of DMSO, and 2g of menthol in a container, stir them evenly, knead them into balls, and press them into discs . The disc is stuck on the base cloth, the back of the base cloth is coated with self-adhesive, and an anti-adhesive film is pasted on the disc to obtain a mosquito repelling and antipruritic patch. After being bitten by a mosquito, apply the mosquito repellent and antipruritic patch to the bite. After 2 minut...

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PUM

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Abstract

The invention relates to natural non-toxic mosquito repellent products. The natural non-toxic mosquito repellent products comprise a pyroligneous solution prepared by taking trunks or branches of horsetail beefwood, eucalyptus tereticornis and litchi wood as raw materials, wherein the mass ratio of the trunks or branches of the horsetail beefwood, eucalyptus tereticornis and litchi wood is (6-10):(0.5-1.5):(0.5-1.5). According to the natural non-toxic mosquito repellent products, the pyroligneous solution is prepared for the first time by jointly taking the horsetail beefwood, the eucalyptus tereticornis and the litchi wood as the raw materials, the prepared pyroligneous solution is subjected to purification/refining of different degrees, appropriate auxiliaries are added according to a certain proportion, and the mosquito repellent series products such as solutions, sprays, tablets, boxes and blocks are prepared. During use, the natural non-toxic mosquito repellent products can be applied, sprayed, pasted, placed and hung on a using part. The natural non-toxic mosquito repellent products do not contain diethyltoluamide or pyrethroids and other toxic substances, and less (hardly) use more expensive plant essential oil, have the advantages of being non-toxic and harmless, repelling mosquitoes, relieving itching and the like, and have efficient mosquito repelling and deodorization effects.

Description

technical field [0001] The invention relates to the technical field of non-toxic insect repellent products, in particular to a natural non-toxic mosquito repellent product and a preparation method thereof. Background technique [0002] In summer, people are bothered by mosquito bites at night, resulting in a decline in sleep quality. After being bitten by mosquitoes, the bite site will be wrapped, and the venom of the mosquitoes will cause itching and scratching, and even cause symptoms such as allergies and infections. Common chemical mosquito repellent ingredients are: DEET (DEET), insect repellent ester (IR3535, Yimening), A (Pie) Caridin, lemon eucalyptus oil, and pyrethroid insecticides. At present, these mosquito repellent ingredients have different degrees of toxicity and irritation, and the better the effect, the greater the toxicity. For the problem of local skin itching, redness and inflammation caused by mosquito bites, pure plant extracts are not effective, and...

Claims

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Application Information

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IPC IPC(8): A61K36/77A61K9/08A61K9/12A61K9/70A61P17/02A61P17/04A61P29/00A61P17/00A61L9/013A01N65/22A01N61/00A01P17/00A61L101/56
CPCA61K36/185A61K36/61A61K36/77A61K9/0014A61K9/08A61K9/12A61K9/7023A61P17/02A61P17/04A61P29/00A61P17/00A61L9/013A01N65/00A01N65/22A01N65/08A01N61/00A61L2209/21A61K2300/00Y02A50/30
Inventor 黄志新陈超
Owner 唐山市新雅诺生物科技有限公司
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