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A kind of preparation method of cellulose-based bactericidal emulsion

A cellulose-based, sterilizing milk technology, applied in the field of sterilizing and disinfecting daily care products, can solve the problems of unfriendly skin, difficult to prepare bactericidal emulsion, etc., achieve good bactericidal effect, save organic solvents, and save the amount of use

Active Publication Date: 2016-06-22
孙波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In the prior art, the results of the preparation of sterilizing and disinfecting emulsions show that when water-insoluble bactericides are used as raw materials, it is difficult to prepare water-based bactericidal emulsions, and the use of a large amount of organic solvents causes degreasing, cracking, etc. The problem of skin unfriendliness has become an important reason restricting its wide application in the market

Method used

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  • A kind of preparation method of cellulose-based bactericidal emulsion

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Embodiment 1

[0047] A kind of preparation of cellulose-based bactericidal emulsion, its preparation operation steps are as follows:

[0048] 1) Prepare the water / organic solvent solution of the bactericide, wherein when an organic solvent is used, the amount by weight of the total amount of the emulsion is 0.01% to 0.2%

[0049] Get bactericide and join in the water / organic solvent solution, the organic solvent solution consumption of present embodiment is below 0.1%, make bactericide completely dissolve or disperse in the deionized water / organic solvent solution and prepare the water / organic solvent of bactericide solution, fungicides include triclosan, lauryl dimethylamine oxide, ammonium laureth, polyoxyethylene lauryl ammonium sulfate, 1,6-bisphenylguanidinohexane, trichlorodiphenylurea , dodecyl dimethyl benzyl ammonium chloride, benzyl ammonium p-chloro-m-xylenol, "iodine", antibiotics, biguanide salt fungicides such as alkyl biguanide salts, aryl biguanide salts and polymeric biguan...

Embodiment 2

[0058] A kind of preparation of cellulose-based bactericidal emulsion, its preparation operation steps are as follows:

[0059] One), prepare the ethanolic solution of benzyl ammonium p-chloro-m-xylenol fungicide

[0060] By mass ratio 1:3, prepare the ethanol solution of benzyl ammonium p-chloro-m-xylenol fungicide;

[0061] Two), preparation of colloidal solution of cellulose nanocrystals

[0062] Choose self-made cellulose nanocrystalline powder, its preparation process uses commercially available sulfate coniferous wood pulp board, the material concentration is controlled at 3% to 6%, react in 64.3% sulfuric acid solution at 38°C for 2.5h, dilute , centrifuged, washed with water, and dried, the cellulose nanocrystal powder obtained by weighing 2kg was added to a chemical material kettle filled with 100L deionized water, and a 2% concentration of cellulose nanocrystal homogeneous colloidal solution was prepared; The preparation process of self-made cellulose nanocrystals ...

Embodiment 3

[0070] A kind of preparation of cellulose-based bactericidal emulsion, its preparation operation steps are as follows:

[0071] One), prepare the aqueous solution of lauryl dimethyl benzyl ammonium chloride

[0072] According to mass ratio 1:5, prepare the aqueous solution of dodecyl dimethyl benzyl ammonium chloride;

[0073] Two), preparation of colloidal solution of cellulose nanocrystals

[0074] Take by weighing 3kg of commercially available cellulose nanocrystal powder, and add it into a material kettle filled with 100L deionized water to obtain a 3% concentration of cellulose nanocrystal homogeneous colloidal solution;

[0075] Three), add thickener in cellulose nanocrystal colloidal solution, surfactant thickener and surfactant add simultaneously

[0076] By weight fraction, respectively select 5 parts of carrageenan, 3 parts of secondary alkyl sulfonate sodium, 5 parts of carboxymethylcellulose sodium, join in the ethylene glycol distearate of 0.3 part, after mixing...

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Abstract

The invention discloses a preparation method of cellulose based bactericidal emulsion. The bactericidal emulsion is mainly prepared from a cellulose based carrier, a bactericide and a thickening assistant; the preparation method comprises the steps of preparing a water-based / little organic solvent-containing solution of the bactericide, preparing a colloidal solution of cellulose substances or derivatives of the cellulose substances, selectively adding the thickening agent, a surface active agent or a mixture of the thickening agent, the surface active agent and a hydroxyl-rich polymer into the colloidal solution, or not adding the surface active agent into the colloidal solution to obtain a water-based carrier colloid emulsion with the moderate viscosity, preshearing the obtained water-based carrier colloid emulsion with the moderate viscosity, and preparing the cellulose based bactericidal emulsion; the water-based / organic solvent solution of the bactericide is dropwise added into the cellulose based colloidal solution after preshearing at low rotating speed, and the high-speed shearing is performed to obtain the cellulose based emulsion. According to the method, the bactericidal effect of the cellulose based bactericidal emulsion can be remarkably improved due to the loading effect of the cellulose based carriers, and the inactivation ratio of the cellulose based bactericidal emulsion on staphylococcus aureus and escherichia coli can be up to more than 96% under an optimal dosage condition.

Description

technical field [0001] The invention relates to a method for preparing a bactericidal emulsion, in particular to a method for preparing a cellulose-based bactericidal emulsion, and belongs to the technical field of sterilizing and disinfecting daily care products. Background technique [0002] With the increase of people's public communication opportunities in modern society, the possibility of infecting various germs through human contact is also increasing. Consumers' demand for lotion products with disinfection and sterilization functions is increasing day by day, especially since the outbreak After the "SARS" epidemic, almost everyone has deeply realized the great harm of bacterial virus infection and the importance of using sterilization and disinfection daily care products. At present, disinfection and sterilization products have become the largest category of functional lotions and care solutions sold in my country. [0003] The antibacterial lotion requires the anti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/04A01N31/16A01N33/12A01N33/24A01N47/44A01N47/30A01N41/00A01P1/00A01P3/00A61K47/38A61K31/085A61K31/14A61K31/155A61K31/17A61K31/185A61P31/02
CPCY02A50/30
Inventor 倪永浩何志斌孙波
Owner 孙波
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