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Broad-spectrum antibacterial nano-silver finishing agent and preparation method thereof

A nano-silver and finishing agent technology, which is applied in the direction of botany equipment and methods, bactericides, biocides, etc., can solve the problems of not being popularized and used in large quantities, the inability to produce drug resistance, and the loss of reproductive ability, so as to facilitate popularization and use , enhance the broad-spectrum antibacterial effect and reduce the production cost

Inactive Publication Date: 2017-09-19
山东森凌环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The U.S. Toxic Substances and Disease Registry and the U.S. Public Health Service commissioned Clement International to conduct a survey of silver toxicity, which involved silver absorption, distribution, metabolism, excretion and its impact on health. According to the study, there has been no topical silver-induced toxicity Reports of human toxic reactions or effects on the functions of the immune system, cardiovascular system, and reproductive system, as well as developmental and genotoxicity
(4) No drug resistance: The unique antibacterial mechanism of silver nanoparticles can quickly and directly kill bacteria and make them lose their ability to reproduce. Therefore, it is impossible to produce the next generation of drug resistance
Nano-silver has the above advantages, but the cost of using nano-silver as an antibacterial finishing agent is too high, and it has not been widely used in the field of finishing agents

Method used

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  • Broad-spectrum antibacterial nano-silver finishing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Get 1 weight part of Andrographis paniculata and add 8 weight parts of 70% ethanol, extract for 3 hours to obtain Andrographis paniculata ethanol extract; get 3 parts by weight of Houttuynia cordata and add 30 parts by weight of 70% ethanol, extract for 3 hours to obtain Yuxing Grass ethanol extract;

[0021] (2) Mix 10 parts of Andrographis paniculata ethanol extract obtained in step (1) with 26 parts of Houttuynia cordata ethanol extract, stir at normal temperature for 5 minutes, and ultrasonically treat for 4 minutes to obtain mixed solution A;

[0022] (3) Dissolving silver nitrate in water to obtain 4 parts of an aqueous solution with a mass concentration of 0.34%, treated with infrared rays for 1 hour, and ultrasonically treated for 1 hour to obtain nano-silver; dropwise added 0.3 parts of 30 g / L polyacrylate, and stirred for 30 minutes to obtain a mixed solution B;

[0023] (4) Stir the mixed solution A obtained in step (2) and the mixed solution B obtained i...

Embodiment 2

[0026] (1) Get 1 weight part of Andrographis paniculata and add 8 weight parts of 70% ethanol, extract for 3 hours to obtain Andrographis paniculata ethanol extract; get 3 parts by weight of Houttuynia cordata and add 30 parts by weight of 70% ethanol, extract for 3 hours to obtain Yuxing Grass ethanol extract;

[0027] (2) 12 parts of Andrographis paniculata ethanol extract obtained in step (1) are mixed with 15 parts of Houttuynia cordata ethanol extract, stirred at normal temperature for 10 minutes, and ultrasonically treated for 2 minutes to obtain mixed solution A;

[0028] (3) Dissolve silver nitrate in water to obtain 5 parts of an aqueous solution with a mass concentration of 0.34%. Treat with infrared rays for 2 hours and ultrasonically treat for 0.5 hours to obtain nano-silver; add 0.1 part of 30g / L polyacrylate dropwise and stir for 30 minutes to obtain mixed solution B ;

[0029] (4) Stir the mixed solution A obtained in step (2) and the mixed solution B obtained ...

Embodiment 3

[0032] (1) Get 1 weight part of Andrographis paniculata and add 8 weight parts of 70% ethanol, extract for 3 hours to obtain Andrographis paniculata ethanol extract; get 3 parts by weight of Houttuynia cordata and add 30 parts by weight of 70% ethanol, extract for 3 hours to obtain Yuxing Grass ethanol extract;

[0033] (2) Mix 11 parts of Andrographis paniculata ethanol extract obtained in step (1) with 20 parts of Houttuynia cordata ethanol extract, stir at normal temperature for 7 minutes, and ultrasonically treat for 3 minutes to obtain mixed solution A;

[0034] (3) Dissolve silver nitrate in water to obtain 6 parts of an aqueous solution with a mass concentration of 0.34%. After 1.5 hours of infrared treatment and 0.7 hours of ultrasonic treatment to obtain nano-silver; dropwise add 0.2 parts of 30g / L polyacrylate, and stir for 30 minutes to obtain a mixed solution B;

[0035] (4) Stir the mixed solution A obtained in step (2) and the mixed solution B obtained in step (...

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Abstract

The invention provides a broad-spectrum bacterial nano-silver finishing agent and a preparation method thereof. The finishing agent is prepared from the following components in parts by weight: 10 to 12 parts of common andrographis herb ethanol extract, 15 to 26 parts of herba houttuyniae ethanol extract, 4 to 6 parts of nanosilver and 0.1 to 0.3 part of bonding agent. The common andrographis herb ethanol extract and the herba houttuyniae ethanol extract have broad-spectrum antibacterial functions, and the antibacterial activities of the extracts are increased after ultrasonic treatment; the antibacterial function of the nanosilver is enhanced further in cooperation with the nanosilver. A silver nitrate solution is difficult to polymerize after infrared and ultrasonic treatment, a dispersing agent does not need to be added, and the prepared nanosilver has high stability.

Description

technical field [0001] The invention belongs to the field of finishing agents, and in particular relates to a broad-spectrum antibacterial nano-silver finishing agent and a preparation method. Background technique [0002] Antibacterial finishing agents can endow fabrics with antibacterial properties. At present, the most commonly used antibacterial finishing agent is nano-silver, which is different from conventional fungicides. Nano-silver has the following advantages: (1) Broad-spectrum sterilization: Nano-silver particles directly enter the bacteria and combine with oxygen metabolizing enzymes (-SH), making The unique mechanism of bacterial suffocation can kill most bacteria, fungi, spores, etc. that come into contact with it. It has comprehensive antibacterial activity against drug-resistant pathogens such as drug-resistant Escherichia coli, drug-resistant Staphylococcus aureus, drug-resistant Pseudomonas aeruginosa, drug-resistant enterococcus, etc. , Pseudomonas aeru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N59/16A01P1/00A01P3/00
CPCA01N65/00A01N59/16A01N65/08A01N2300/00
Inventor 王凯王奕童
Owner 山东森凌环保科技有限公司
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