Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Copper coated antimicrobial filter material

A filter material and filter core technology, applied in filtration separation, membrane filter, dispersed particle filtration, etc., can solve the problems of insufficient killing effect of microorganisms, long time killing microorganisms, etc., and achieve a wide antimicrobial spectrum and rapid killing. Effect

Pending Publication Date: 2021-12-07
DINNOVATIVE NANJING CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, existing air filter materials often have defects such as long time required for killing microorganisms, and / or insufficient effect of killing microorganisms

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Copper coated antimicrobial filter material
  • Copper coated antimicrobial filter material
  • Copper coated antimicrobial filter material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1 250mg / m 2 Preparation of Copper-coated Filter Media (Sample 1-2)

[0051] A polypropylene PP material with a filter wire diameter of 10 microns is used as the filter substrate, and the coating material is copper, and the copper is coated on the filter substrate by magnetron sputtering.

[0052] First, place the filter material substrate into the vacuum chamber, and set the transmission speed to 5m / min. In this step, the transmission speed can be adjusted due to different target loss. Subsequently, the copper target is put in place and placed in the cavity. Evacuate the vacuum chamber to 10 -4 After Pa, it is filled with 1 Pa of inert gas Ar as the carrier of gas discharge.

[0053] Set the film thickness gauge parameters of the magnetron sputtering instrument. Set the parameters of the film thickness meter to correspond to the copper equivalent of 250mg / m 2 Copper coating thickness. The instrument is turned on to carry out the coating of copper on the...

Embodiment 2

[0056] Example 2 300mg / m 2 Preparation of Copper-coated Filter Media (Sample 3-5)

[0057] A polypropylene PP material with a filter wire diameter of 10 microns is used as the filter substrate, and the coating material is copper, and the copper is coated on the filter substrate by magnetron sputtering.

[0058] The method steps are as above, the difference is that the parameters of the film thickness meter are set to correspond to a copper equivalent of 300 mg / m 2 Copper coating thickness. The instrument was turned on for the coating of copper on the polypropylene PP substrate. Microscopic inspection to ensure uniform coating. To get coated with 300mg / m 2 Copper-coated polypropylene PP substrate (sample 3).

[0059] Using the same method, replace the filter base material with a polyester PE material with a filter wire diameter of 10 microns. Also set the parameters of the film thickness meter to correspond to the copper equivalent of 300mg / m 2 Copper coating thickness. ...

Embodiment 3

[0061] The detection-1 of the antibacterial effect of embodiment 3 sample 3-5

[0062] Test the antibacterial effect of samples 3-5. The testing unit is the Antibacterial Material Testing Center of the Institute of Physical and Chemical Technology, Chinese Academy of Sciences.

[0063] As the test microorganisms, Escherichia coli (Escherichia coli; ATCC 25922) and Staphylococcus aureus (Staphylococcus aureus; ATCC 6538) were used.

[0064] The antibacterial effect test method is as follows:

[0065] Samples for inspection are cut to a size of 18mm x 18mm.

[0066] 1 Neutralizer identification test

[0067] According to the GB15979-2002 standard of the Ministry of Health of the People's Republic of China, the bactericidal performance test must pass the following neutralizer identification test.

[0068] 1.1 Test grouping

[0069] 1) Stained bacteria sample + 5mL PBS

[0070] 2) Stained bacteria sample + 5mL neutralizer (physiological saline)

[0071] 3) Stained photos ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a filter material, the filter material comprises an internal filter core material and a coating layer coated on the outer layer of the filter core material, and the coating layer is selected from one or more of copper, silver, zinc and gold and one or more alloys of the copper, the silver, the zin and the gold. The invention also relates to a filter article comprising the filter material. The filter material disclosed by the invention has the effects of quickly, efficiently and lastingly killing microorganisms and having a wide antimicrobial spectrum.

Description

technical field [0001] The present invention relates to filter materials, in particular to copper-coated filter materials having a composite filter filament structure. Background technique [0002] As contemporary people pay more and more attention to the quality of the atmosphere and indoor air, the technical improvement requirements of air filter materials are constantly increasing. In 1940, the glass fiber air material was patented in the United States. Later, with the development of the nonwoven industry, air filter materials made of various chemical fiber materials appeared, such as polyester (PET), polyamide, polypropylene (PP), polyphenylene sulfide (PPS), polytetrafluoroethylene (PTFE) and so on, inorganic fibers include glass fibers, ceramic fibers and so on. [0003] At present, the requirements for air filter materials are getting higher and higher and more diverse. Air filter materials not only need to have high filtration efficiency and long service life; at ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01D46/00
CPCB01D39/14B01D46/00B01D46/0028B01D2239/0442B01D2239/04B01D69/1214B01D46/30B01D39/02
Inventor 丁浩旻
Owner DINNOVATIVE NANJING CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com