The present invention relates to antibacterial and antiviral activated substrate filter and
process for preparing metal ion impregnated substrate.
[0002] More particularly, the present invention relates to antibacterial and antiviral treatment
10 with metal ions over an activated supportive substrate for filter.
Background of the invention:
[0003] In current situation, many bacteria’s and viruses are pathogens that can lead to severe
sickness and mortality. In every year, thousands of deaths are the result of transmission of
pathogens with the perfect example of SARS-COV-2 which is happening recently.
15 [0004] Existing filters don’t have the properties of antibacterial and antiviral.
[0005] By the reference of EPO patent no. EP0989898B1 by Microban Products Co dated
1998-02-17, titled “antimicrobial filter cartridge” discloses an antimicrobial filter cartridge (10)
having a perforated core member (12) wrapped with a first microporous membrane (17), which
is in turn overwrapped with a second (18) and a third microporous membrane (19). The
20 membranes are covered with a crisscross wrapping of antimicrobial treated yarn. The filter
cartridge is sized so as to fit tightly into a cartridge housing of a fluid filtration system. Fluid
passing through the cartridge housing will be filtered by the filter cartridge to remove
microorganisms on the filter media.
[0006] By the reference of US patent no. US7942957B2 by 3M Innovative Properties Co dated
25 2007-01-24, titled” air filter having antimicrobial property” discloses an antimicrobial
composition having antibacterial and antifungal properties and to an air filter manufactured
using the composition. The filter of the present invention, comprising a filtration media treated
with the antimicrobial composition having antibacterial and antifungal properties, has excellent
3
antibacterial and antifungal properties, and thus can prevent the bacteria and fungi filtered by
the filter from propagating in the filter.
[0007] By the reference of US patent no. US9427691B2 by PTI Technologies Inc dated 2015-
03-13, titled” antimicrobial air filter” discloses a microbial resistant air filter is disclosed. The
5 microbial resistant air filter has air filter media having first and second antimicrobial agents.
The first antimicrobial agent is diiodomethyl-p-tolyl sulfone and the second antimicrobial agent
is a combination of zinc omadine and thiabendazole.
[0008] By the reference of US patent application no. US20060117958A1 by Nikki Universal
Co Ltd, Hokuetsu Paper Mills Ltd dated 2002-10-16, titled” Air purification filter and process
10 for producing the same” discloses an air purification filter which has a high dry tensile strength,
a high wet tensile strength in association with a high water resistance and a high water
repellency and exhibits a bactericidal effect due to a gas phase reaction in a gas phase. Namely,
an air purification filter having a high dry tensile strength, a high wet tensile strength (a high
water resistance) and a high water repellency as well as a bactericidal effect which is obtained
15 by blending a filter fiber having a functional group with a mixture of a modification enzyme
which has an ionic polarity opposite to the ionic polarity of the whole filter fiber as described
above and a bactericidal effect with an ionic synthetic resin binder having the opposite ionic
polarity similar to the modification enzyme.
[0009] By the reference of US patent application no. US20070199890A1 by AgION
20 Technologies LLC dated 2006-02-27, titled” Antimicrobial activated carbon and use thereof”
discloses antimicrobial activated carbon having controlled release of the antimicrobial active
agent are provided comprising activated carbon and an antimicrobial coating applied to at least
a portion of its exposed outer surface wherein the antimicrobial coating comprises a binder and
an antimicrobial water soluble glass or an inorganic ion exchange type antimicrobial agent.
25 The antimicrobial coatings to be applied to the activated carbon materials are curable liquids
or ultra-fine thermoplastic powder coatings. The antimicrobial activated carbon materials may
be employed in filters as a loose fill or in sintered filters.
[0010] By the reference of PCT patent application no. PCT/EP2012/060501 by
Mann+Hummel Gmbh, Neenah Gessner Gmbh dated 2012-06-04 titled” Antimicrobial filter
30 medium and filter module” discloses a filter medium having an antimicrobial effect, in
particular for filtering air for the interior of motor vehicles, consisting of at least one first filter
4
layer, in which impurities can be retained, and a second filter layer, which is adjacent to said
first filter layer. The second filter layer is applied to the inflow side of the first filter layer and
contains antimicrobial substances.
[0011] Therefore, there is a need of development and process of antibacterial and antiviral
5 activated air-filter with metal ions impregnation
[0012] However, none of the above discussed inventions provides such antibacterial and
antiviral activated substrate air-filter and process for impregnation of metal ions over the
activated substrate for air-filtration. The invention provides antibacterial and antiviral
treatment for activated air-filters by impregnating metal ions over it
10 Objects of the invention:
[0013] The main object of the present invention is to provide antibacterial and antiviral
activated substrate filter and process for preparing metal ion impregnated substrate for airfiltration.
[0014] Another object of the present invention is to provide air purifying filter having
15 antibacterial and antiviral and adsorptive filtration properties.
[0015] Another object of the present invention is to provide antibacterial and antiviral treatment
with metal ions over an activated supportive substrate of filter.
[0016] Yet another objective of the present invention is to provide metal-ion impregnated
activated fabric.
20 [0017] Yet another objective of the present invention is to provide metal-ion impregnated
activated carbon powder/granules
[0018] Still another object of the present invention is to provide metal-ion impregnated
polyester felt.
[0019] Still another object of the present invention is to provide metal-ion impregnated
25 polyurethane sponge.
[0020] Yet another objective of the present invention is to provide metal-ion impregnated
activated polymeric mesh.
5
[0021] Still another object of the present invention is to provide antibacterial and antiviral
activated substrate filter which can be used for air purification in A.C and air purifiers
[0022] Still another object of the present invention is to provide antibacterial and antiviral
activated substrate filter which can be used for air purification in refrigerators
5
Summary of the invention:
[0023] The present invention is proposed an both antibacterial and antiviral activated substrate
filter and process for preparing metal ion impregnated substrate for air-filtration, wherein,
antibacterial and antiviral treatment with metal ions over a support substrate of activated fabric
10 or carbon powder/granules or polyester felt or PU sponge or polymeric mesh filter which
provides antibacterial and antiviral properties.
[0024] The main aspect of the invention provides an antibacterial and antiviral activated fabric
or carbon powder/granules or polyester felt or PU sponge or polymeric mesh filter and process
for preparing metal ion activated fabric or carbon powder/granules or polyester felt or PU
15 sponge or polymeric mesh for air-filtration comprising antibacterial and antiviral treatment
with metal ions over a support substrate of activated substrate filter; wherein air purifying filter
having adsorptive filtration , antibacterial and antiviral properties.
[0025] Second aspect of the invention provides process for preparing metal ion activated
substrate for air-filtration comprising the steps of: First, take demineralized water of 100 ml
20 with metallic precursor salt of 0.5 M. Second mix it properly. Third, add 5 gm of activated
substrate in the same solution. Fourth, stir it for 1 hr. at 100 ͦC and 150 rpm. Fifth, take out
sample from the solution and dry it for 1 hr. in oven at 40 ͦC. Final, metal ion impregnated
substrate as an antibacterial and antiviral filter is achieved.
[0026] Third aspect of the invention provides process for impregnation of antibacterial and
25 antiviral treatment with the incorporation of metal ions over a supportive activated substrate.
Wherein such substrate works as excellent functional adsorbent material due to its high porosity
and larger surface area and adsorbs odor, all harmful volatile organic compounds (VOCs) and
also kill the microorganisms.
Statement of the invention:
6
[0027] An antibacterial and antiviral activated substrate filter and process for preparing metal
ion impregnated substrate for air-filtration comprising antibacterial and antiviral treatment with
metal ions over a supportive activated substrate filter; wherein air purifying filter having
adsorptive filtration antibacterial and antiviral properties; wherein the process for preparing
5 metal ion activated substrate for air-filtration comprising take demineralized water with
metallic precursor salt (2) and mix properly; then add activated substrate (3) in the solution and
stir it and dry it for 1 hour and final metal ion impregnated substrate as an anti-microbial filter
(1) is achieved.
Brief Description of Drawings:
10 [0028] Figure 1 describes process for preparing metal ion impregnated substrate.
[0029] The referral numerals in the figures refer to: antibacterial and antiviral filter (1); Metallic
precursor salt (2); activated substrate (3); Demineralized water (4); Metal ion impregnated
substrate (5).
Brief description of invention:
15 [0030] The present invention will now be described herein after with reference to the
accompanying drawings, in which some, but not all embodiments of the invention are shown.
While the following description details the preferred embodiments of the present invention is
not limited in its application to the details of construction and arrangement of the parts
illustrated in the accompanying drawings. With reference to the figures, the enclosed
20 description and drawings are merely illustrative of preferred embodiments and represent
several different ways of configuring the present invention. Although specific components,
materials, configurations and uses of the present invention are illustrated and set forth in this
disclosure, it should be understood that a number of variations to the components and to the
configuration of those components described herein and in the accompanying figures can be
25 made without changing the scope and function of the invention set forth herein.
[0031] The present invention is proposed an antibacterial and antiviral activated substrate filter
and process for preparing metal ion impregnated substrate for air-filtration.
The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration comprising antibacterial and antiviral treatment with
30 metal ions over a supportive substrate filter which provides antibacterial and antiviral
properties.
7
[0032] The antibacterial and antiviral activated substrate filter and process for preparing metal
ion impregnated substrate for air-filtration comprising the steps of:
 First, take demineralized water (4) (DM water) of 100 ml with metallic precursor salt
(2) of (0.5 M).
5  Second, mix it properly.
 Third, add 5 gm of activated substrate (3) in the same solution.
 Fourth, stir it for 1 hr. at 100 ͦC and 150 rpm.
 Fifth, take out sample from the solution and dry it for 1 hr. in oven at 40 ͦC.
 Final, metal ion impregnated substrate (5) as an anti-microbial filter (1) is achieved.
10 [0033] In embodiment of the present invention provides an antibacterial and antiviral activated
substrate filter and process for preparing metal ion impregnated substrate for air-filtration
comprising antibacterial and antiviral treatment with metal ions over a supportive activated
substrate filter; wherein air purifying filter having adsorptive filtration, antibacterial and
antiviral properties.
15 [0034] In another embodiment of the present invention provides process for preparing metal
ion impregnated substrate for air-filtration comprising take demineralized water with metallic
precursor salt (2) and mix properly; then add activated substrate (3) in the solution and stir it
and dry it for 1 hour and final metal ion impregnated substrate as an anti-microbial filter (1) is
achieved.
20 [0035] In another embodiment of the present invention provides process for preparing metal
ion impregnated substrate for air-filtration comprising the steps of: First, take demineralized
water (4) of 100 ml with metallic precursor salt (2) of 0.5M. Second mix it properly. Third, add
5 gm of activated substrate (3) in the same solution. Fourth, stir it for 1 hr. at 100 ͦC and 150
rpm. Fifth, take out sample from the solution and dry it for 1 hr. in oven at 40 ͦC. Final, metal
25 ion impregnated substrate as an anti-microbial filter (1) is achieved.
[0036] In another embodiment of the present invention provides process for impregnation of
antibacterial and antiviral treatment with the incorporation of metal ions over a supportive
substrate of activated fabric; wherein such substrate works as excellent functional adsorbent
material due to its high porosity and larger surface area and adsorbs odor, all harmful volatile
30 organic compounds (VOCs) and also kill the microorganisms.
8
[0037] In another embodiment of the present invention provides antibacterial and antiviral
activated substrate, which can be used as metal-ion impregnated activated carbon
powder/granules.
[0038] In another embodiment of the present invention provides antibacterial and antiviral
5 activated substrate, which can be used as metal-ion impregnated polyester felt.
[0039] In yet another embodiment of the present invention provides antibacterial and antiviral
activated substrate, which can be used as metal-ion impregnated polyurethane sponge.
[0040] In yet another embodiment of the present invention provides antibacterial and antiviral
activated substrate, which can be used as metal-ion impregnated polymeric mesh.
10 [0041] In yet another embodiment of the present invention provides antibacterial and antiviral
activated substrate, which can be used for air purification in A.C and air purifiers.
[0042] Still another embodiment, present invention provides antibacterial and antiviral
activated substrate, which can be used for air purification in refrigerators.
Applications:
15  Metal-ion impregnated activated carbon fabric
 Metal-ion impregnated activated carbon powder/granules.
 Metal-ion impregnated activated substrate
 Metal-ion impregnated polyester felt
 Metal-ion impregnated polyurethane sponge
20  Metal-ion impregnated polymeric mesh
 Using the antibacterial and antiviral product for air purification in A.C and air purifiers
 Using the antibacterial and antiviral product for air purification in refrigerators.

We claim:
1. An antibacterial and antiviral activated substrate filter and process for preparing metal ion
5 impregnated substrate for air-filtration comprising antibacterial and antiviral treatment with
metal ions over a supportive substrate of activated substrate filter; wherein air purifying filter
having adsorptive filtration antibacterial and antiviral properties;
wherein the process for preparing metal ion impregnated substrate for air-filtration comprising
take demineralized water with metallic precursor salt (2) and mix properly; then add activated
10 substrate (3) in the solution and stir it and dry it for 1 hour and final metal ion activated substrate
as an anti-microbial filter (1) is achieved.
2. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration as claimed in claim 1, wherein the process for preparing
metal ion impregnated substrate for air-filtration comprising the steps of: First, take
15 demineralized water (4) of 100 ml with metallic precursor salt (2) of 0.5 m. Second mix it
properly. Third, add 5 gm of activated substrate (3) in the same solution. Fourth, stir it for 1 hr.
at 100 ͦC and 150 rpm. Fifth, take out sample from the solution and dry it for 1 hr. in oven at
40 ͦC. Final, metal ion impregnated substrate as an anti-microbial filter (1) is achieved.
3. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
20 impregnated substrate for air-filtration as claimed in claim 1, wherein process for impregnation
of antibacterial and antiviral treatment with the incorporation of metal ions over a support
substrate of activated fabric; wherein such substrate works as excellent functional adsorbent
material due to its high porosity and larger surface area and adsorbs odor, all harmful volatile
organic compounds (VOCs) and also kill the microorganisms.
25 4. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration as claimed in claim 1, wherein antibacterial and antiviral
activated substrate can be used as metal-ion impregnated activated carbon powder/granules.
5. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration as claimed in claim 1, wherein antibacterial and antiviral
30 activated substrate can be used as metal-ion impregnated polyester felt.
10
6. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration as claimed in claim 1, wherein antibacterial and antiviral
activated substrate can be used for Metal-ion impregnated polyurethane sponge.
7. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
5 impregnated substrate for air-filtration as claimed in claim 1, wherein antibacterial and antiviral
activated substrate can be used for Metal-ion impregnated polymeric mesh.
8. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration as claimed in claim 1, wherein antibacterial and antiviral
activated substrate can be used for air purification in A.C and air purifiers.
10 9. The antibacterial and antiviral activated substrate filter and process for preparing metal ion
impregnated substrate for air-filtration as claimed in claim 1, wherein antibacterial and antiviral
activated substrate can be used for air purification in refrigerators.