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Long-acting antibacterial and virus-killing hygienic protection article spray and application thereof

A protective product and virus-killing technology, applied in the direction of biocides, applications, disinfectants, etc., can solve the problems of high irritation, strong irritation, inhalation risk, etc., and achieve the advantages of prolonging service life, good air permeability, and improving retention characteristics Effect

Active Publication Date: 2020-06-05
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, alcohol disinfectants have weak bactericidal efficacy and are ineffective against fungi and viruses; peroxide disinfectants are unstable and irritating, and long-term use will endanger human health; polychlorinated disinfectants have little effect on viruses and are Irritating
In addition, these fungicides have a peculiar smell, and the effect is not long-lasting, and microorganisms proliferate immediately within a few hours after sterilization
In addition, these disinfectants that are easy to dissolve have a risk of inhalation for protective products such as masks and gloves
[0004] In recent years, Chinese patent 201811117200.X discloses a clothing disinfectant, which uses alcohol, sodium hypochlorite and natural extracts to disinfect clothes. The disinfectant has the characteristics of good effect and small side effects on the human body, but its bactericidal effect is not strong Defects that are ineffective against fungal viruses, making it difficult to adapt to long-term needs
Chinese patent 201811421664.X discloses an alcohol disinfectant that can be foamed. This patent uses alcohol and PEG-10 polydimethylsiloxane to solve the problems of alcohol not being able to foam and sticking after spraying the surface, but it has not been solved. Difficult to kill viruses and low sterilization efficiency

Method used

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  • Long-acting antibacterial and virus-killing hygienic protection article spray and application thereof
  • Long-acting antibacterial and virus-killing hygienic protection article spray and application thereof
  • Long-acting antibacterial and virus-killing hygienic protection article spray and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1 Protective article purifying liquid sterilizing effect

[0046] Configure the antibacterial and virus-killing protective equipment purification solution according to the following formula: polyhexamethylene biguanide hydrochloride: 0.5%; nano-silver gel: in terms of silver concentration, the mass concentration is 0.05%; octadecyl quaternary ammonium chloride 1% , Octadecyl quaternary ammonium bromide 1%; Melaleuca alternifolia oil: 0.0005%; Dimethyldichlorosilane 4%, phenylchlorosilane 4%, trimethylchlorosilane 2%; Propylene glycol: 6% ; Water: balance.

[0047] According to GB15979-2002, the antibacterial performance test of the protective equipment purification liquid was carried out. The protective equipment purification liquid was used, and the action time was 2min, 5min, 10min, 20min, and the test was repeated 3 times. The bacteria used are Escherichia coli (ATCC 8099), Staphylococcus aureus (ATCC 6538), and Candida albicans (ATCC 10231). The antibact...

Embodiment 2

[0058] Embodiment 2 Protective article purifying liquid kills virus effect

[0059]According to the following formula, the antibacterial and virus-killing protective equipment purification solution is configured: polyhexamethylene biguanide hydrochloride: 0.02%; nano-silver gel: in terms of silver concentration, the mass concentration is 0.002%; octadecyl quaternary ammonium chloride 0.5% , octadecyl quaternary ammonium bromide 0.5%; Melaleuca alternifolia: 0.0005%; dimethyldichlorosilane 2%, phenylchlorosilane 2%, trimethylchlorosilane 1%; propylene glycol: 3% ; Water: balance.

[0060] According to the identification test of the physical removal method of residual disinfectant in the "Disinfection Technical Specifications" 2002 edition, the virus inactivation test of cell infection method was carried out on the purification solution of protective equipment, and the test was carried out for 3 consecutive times. The virus used is influenza A virus H1N1, and the antiviral perf...

Embodiment 3

[0070] Adopt the formula of Example 1, configure protective equipment purification liquid, and spray evenly on the inside and outside of the used KN90 mask. The usage amount of each mask is 2-4ml. That's it.

[0071] Use the PALAS MFP3000 modular filter performance tester to analyze the retention characteristics and resistance of the mask (85L / min, sodium chloride is less than 0.3um, temperature 25°C, relative humidity 75%)), and use the YG461E non-woven air permeability meter Test the air permeability of the mask (20cm 2 , pressure 200Pa). The test results are shown in Table 4.

[0072] Table 4 Retention and resistance tests of masks after protective equipment purification liquid treatment

[0073]

[0074] After being treated with the purification solution of protective equipment, the protective performance of the mask was not substantially affected, and its interception rate decreased slightly, but it met the national standard; its filtration resistance also increased...

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Abstract

The invention belongs to the technical field of antibiosis and disinfection of hygiene protection articles. The invention relates to a spray, and particularly discloses a long-acting antibacterial andvirus-killing hygienic protection article spray and application thereof. The formula of the spray comprises the following components in percentage by silver concentration: 0.01 to 1.0 percent of polyhexamethylene biguanide hydrochloride, 0.001 to 0.1 percent of nano-silver gel, 0.5 to 5 percent of quaternary ammonium salt, 0.0001 to 0.001 percent of melaleuca alternifolia oil, 2 to 15 percent oforganic silicon, 1 to 10 percent of propylene glycol and the balance of water. The spray for the protective articles is lasting in antibacterial effect, the spray is uniformly sprayed on the surfacesof the used sanitary protective articles until the sanitary protective articles are wet, and the sanitary protective articles can be reused after being dried. After the mask treated by the protectivearticle spray is washed with water for three times, the antibacterial rate is kept at 95% or above under the condition of keeping good air permeability.

Description

technical field [0001] The invention belongs to the technical field of antibacterial and disinfection of sanitary protection articles, and in particular relates to a long-acting antibacterial and virus-killing protective article spray and its application in protective masks. Background technique [0002] During the current period of prevention and control of the new coronavirus, in order to avoid the spread of bacteria and viruses, the medical and household fields have increased the use of sanitary protection sprays and proposed higher disinfection standards. It often takes a period of time for these sanitary protection products to be used from the factory, during which the sanitary protection products are easily contaminated by bacteria and viruses. In addition, sanitary protection products such as protective masks and laboratory gloves are mostly disposable consumables, and do not have the function of killing viruses efficiently, resulting in a huge waste of resources. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/28A01N59/16A01N47/44A01N33/12A01N25/06A01P1/00
CPCA01N25/06A01N33/12A01N47/44A01N59/16A01N65/00A01N65/28
Inventor 肖凯军龚胜银玉容
Owner SOUTH CHINA UNIV OF TECH
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