49results about How to "To achieve the purpose of repelling mosquitoes" patented technology

The invention discloses a photon mosquito repellent and a preparation method thereof. The mosquito repellent is nano fibroin emulsion, wherein the surface of the fibroin has silver halide nano particles. The preparation method comprises: adding a modifier into the water soluble fibroin solution; gradually dripping metal halide aqueous solution and silver nitrate aqueous solution gradually by using a double phase titration process to form silver halide nano particles on the upper surface of the fibroin in situ to form the nano fibroin emulsion; and aging to obtain the photon mosquito repellent. In the invention, the fibroin is used as a carrier to synthesize a nano material in situ, the nano fibroin emulsion, which has a strong fluorescent characteristic in a 420 to 460 nanometer wave band, is formed by using the synergetic effect of the fibroin and the nano material, the micro morphologic size of the nano particles is uniform, the dispersion stability is high, and the photon mosquito repellent has the characteristic of light stability and can repelling mosquitoes safely, conveniently and quickly without polluting environment.

The invention discloses a mosquito-repellent incense with residues obtained after volatile oil extraction from typus physiologions cinnanloni leaves as a base material for the mosquito-repellent incense and a production method thereof. The mosquito-repellent incense comprises the following raw materials by weight: 40-70 parts of typus physiologions cinnanloni leaf residue powder, 30-40 parts of starch, and 5-10 parts of perfume. The production method comprises the following steps: drying and crushing typus physiologions cinnanloni leaf residues, sieving through 100-120 meshes to remove impurities, adding pure typus physiologions cinnanloni leaf residue powder into starch and perfume, uniformly stirring with water to obtain a pasty mixture, performing extrusion moulding in an incense-making machine, drying and packaging the finished product. The mosquito-repellent incense with residues obtained after volatile oil extraction from typus physiologions cinnanloni leaves as a base material of the invention has fewer but better raw material composition, and because of the addition of typus physiologions cinnanloni leaf residue powder, the product has obvious mosquito-repelling effect. The invention makes full use of typus physiologions cinnanloni leaf residue powder as a main raw material, changes waste into valuables; the product has faint scent after ignited, has the function of mosquito, fly, and insect repellence, and is an environment-friendly product. The production method has the characteristics of simple preparation process flow, and low raw material cost.