CN1442214A - Sterilizing and toxicant preventing breathing mask and its preparation method - Google Patents
Sterilizing and toxicant preventing breathing mask and its preparation method Download PDFInfo
- Publication number
- CN1442214A CN1442214A CN 03109779 CN03109779A CN1442214A CN 1442214 A CN1442214 A CN 1442214A CN 03109779 CN03109779 CN 03109779 CN 03109779 A CN03109779 A CN 03109779A CN 1442214 A CN1442214 A CN 1442214A
- Authority
- CN
- China
- Prior art keywords
- ion
- sorbing material
- mouth mask
- specific surface
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
A bactericiding detoxicating mask is composed of surface mask, nylon fastener, internal layer with the metal ions carried high-specific-surface-area adsorption material, strings and soft metallic sheet for fixating shape. Its advantages are high bactericiding and detoxicating effect, high air permeability and filter performance, and low cost.
Description
Technical field
Disclosed in this invention is a kind of sterilization anti-poison respirator and preparation method thereof, and especially in preventing the dust process, initiatively mouth mask of sterilization gas defence and preparation method thereof belongs to the HCT category.
Technical background
The present mouth mask of producing and using mainly adopts the mode of suspension in the filtered air, reaches the purpose that people's inhaled air is purified.Be limited to the material gauze of making mouth mask, the aperture of nonwoven, not very good to molecule, bacterium, the viral effect of filtered air middle and high concentration; In order to improve filter efficiency, often increase the sorbing material of the number of plies and interpolation high-specific surface area, adopt active carbon as patent 02207820,90219656.1,93244936.0,94223391.3,97243004,98219031 of patents adopt activated carbon fiber as sorbing material.
Add sorbing material such as the active carbon and the active carbon fiber felt of high-specific surface area, though improved filter efficiency to a certain extent, but simultaneously by suspensions such as the airborne molecule of adsorption filtration, bacterium, viruses, on the sorbing material in mouth mask, these bacteriums, virus and small suspended particulate substance be able to enrichment.Consider the convenience and the gas permeability of use, the sorbing material limited amount that can add in the mouth mask.And, no matter be physical absorption or chemisorbed, adsorption and desorption or desorption are reversible processes, promptly sorbing material also has the phenomenon of desorption to exist in adsorption process; When absorption has just begun, based on adsorption reaction; Its inverse process desorption phenomenon can be ignored, but after reaching certain adsorbance, the speed of desorption and desorb is just apparent in view; The survival ability of the bacterium that has, virus is stronger, can survive for a long time under the normal temperature, therefore filter bacterium, virus and the suspended particulate substance of high concentration by the sorbing material that adds high-specific surface area merely, bacterium, the virus that can produce desorption inevitably enter respiratory tract and form the possibility that infects.
The mouth mask that activated carbon fiber and Chinese medicine overcoat or the anti-mercury layer of chemistry are arranged that patent 94107134.0 is released, improve to some extent by the adsorption filtration mode than merely, the anti-mercury layer CuI of its Chinese medicine overcoat and chemistry evenly coating on nonwoven, this has influenced gas permeability, comfortableness to a certain extent, and the Chinese medicine overcoat does not generally possess broad spectrum activity to bacterium, viral sterilization.It is lining, the active carbon plate mouth mask as adsorbent that 01264442.0 of patent is released a kind of nano-disinfection odourproof fiber cloth, but the not marketization as yet of nanometer odourproof fiber cloth at present, cost an arm and a leg, and the nano material that can add in the nano-disinfection odourproof fiber cloth, consider and the compatibility of fiber that the performance of its sterilization can be restricted to a certain extent.
In sum,, satisfy gas permeability and comfortableness for when improving the filter effect of mouth mask, and have effective sterilization is provided, the toxic effect of going out fruit, cost is suitable, the spy finishes the present invention.
Summary of the invention
It is good to the purpose of this invention is to provide a kind of gas permeability, the comfortableness that can use under the condition of high-concentration suspension particle, bacterium, virus, and cost is suitable, the filter effect height, have sterilization, the mouth mask of the toxic effect of going out fruit.
Design of the present invention is such:
Metal ion Ag
+, Cu
2+, Zn
2+Bacterium, virus there are good inhibition and killing effect, especially Ag
+, Cu
2+To the inhibition of bacterium, virus with kill and possess broad spectrum activity; The sorbing material of high-specific surface area is in absorption and desorption process, because kinetic factor will make bacterium, virus take place on the sorbing material surface there is certain time of staying before the desorption.Cover to be loaded onto on the sorbing material surface of high-specific surface area and contain a metal ion species Ag less
+, Cu
2+, Zn
2+Salt, coat internal layer with this material with gauze or nonwoven as mouth mask, then breathe the steam that produces in the absorption of the surface of the sorbing material of high-specific surface area, form very thin being dissolved with and contain a metal ion species Ag at least
+, Cu
2+, Zn
2+Liquid film, the metal ion that is dissolved and absorption and the bacterium, the virus that are enriched in identical sorbing material surface interact inhibition and kill bacteria and virus.When promptly guaranteeing the adsorption filtration effect, adsorbed bacterium, virus there is very strong killing effect.
Because Ag
+, Cu
2+When concentration is several ppm, just possess the ability of inhibition and kill bacteria, cover on the sorbing material surface of high-specific surface area when carrying, can adopt solubility salt solution directly to be adsorbed on the sorbing material surface, oven dry is made then; The nano particle that also can adopt the mode of chemical reaction to form microsolubility salt and argent, copper covers and is loaded in the sorbing material surface, and oven dry is made then, to reduce the consumption of argent and copper in the preparation process.Configuration metal ions Zn
2+Higher to the concentration that the bacterium generation significantly suppresses and killing action is required, cover when carrying on the sorbing material surface of high-specific surface area, adopt solubility salt solution directly to adsorb, dry then and make.
When carrying metal ion was covered on the sorbing material surface, Ceng Fuhe covered and carries micro-antibiotic in the hope of improving Ag
+, Cu
2+, Zn
2+To the inhibition and the killing effect of bacterium, virus, but result of the test does not have significant difference with the effect of covering carrying metal ion merely.
Consider cost and raw material source factor, adopt activated carbon fiber, active carbon, zeolite and composition thereof sorbing material, can satisfy adsorption filtration simultaneously and carrying metal ion Ag is covered in absorption as high-specific surface area
+, Cu
2+, Zn
2+Requirement.
When covering carrying metal ion by absorption or chemical reaction, the concentration of corresponding metal ion should not be lower than 0.1mMol/l in the preceding solution of absorption and reaction, otherwise will increase absorption or reaction time, is unfavorable for reducing production cost.
For mouth mask cleans conveniently, mouth mask is pressed ectonexine split structure fabrication, see accompanying drawing (1): outer face mask 1 the right and left at mouth mask respectively has an opening, internal layer 3 is equipped with the sorbing material of the high-specific surface area that covers carrying metal ion, with velcro 2 lockings, when cleaning face shield 1, can earlier internal layer be taken out.Mouth mask has bigger gap between the mouth mask and the bridge of the nose after mouth mask rope 4 is fastened, adopt being connected between soft metal thin slice 5 auxiliary typing mouth masks and the bridge of the nose, dwindles the gap between the mouth mask and the bridge of the nose, improves security.Soft metal thin slice 5 can adopt aluminium, zinc material, copper material or ormolu material, makes in face shield or directly to stick on the face shield with adhesive tape.Outer face mask 1 adopts gauze or nonwoven.
But at being rich in more intense bacterium of infectiousness and viral environment, had better disposablely use, the design of mouth mask can not wanted velcro 2, directly sews up, and avoids being recovered using and the bacterium and the virus that adhere on the outer face mask being spread once more.
The present invention has following feature:
1. be taken to a kind of as sorbing material of rare activated carbon fiber, active carbon fiber felt, active carbon, zeolite, and cover and be loaded with a kind of of silver ion, copper ion and zinc ion at least being adsorbed on material, oven dry is made then.
2. when sorbing material covers Ag-bearing ion, copper ion and zinc ion, directly adsorb in the soluble-salt solution of employing corresponding metal ion, or directly the atomizing of corresponding metal solion evenly is sprayed at the sorbing material surface, oven dry is made then.
3. when sorbing material covers Ag-bearing ion, copper ion, the nano particle that can adopt the mode of chemical reaction to form microsolubility salt and argent, copper covers and is loaded in the sorbing material surface, and oven dry is made then.
4. when sorbing material covered Ag-bearing ion, copper ion and zinc ion, the concentration that GOLD FROM PLATING SOLUTION belongs to ion was not less than 0.1mMol/l.
5. cover the sorbing material of the high-specific surface area that is loaded with metal ion, coat the internal layer that mouth mask is made in stitching with gauze, nonwoven, make disposable breathing mask and the branch body structure mouth mask of being convenient to unpick and wash respectively with the direct stitching of outer cover employing of mouth mask or with the velcro combination.
6. adopt being connected between soft metal thin slice 5 auxiliary typing mouth masks and the bridge of the nose, dwindle the gap between the mouth mask and the bridge of the nose, improve security.
The branch body structure mouth mask schematic diagram of description of drawings (1) for ease of unpicking and washing, wherein: 1. the outer face mask of mouth mask; 2. velcro; 3. the mouth mask internal layer of the sorbing material of the high-specific surface area that covers carrying metal ion is housed; 4. mouth mask rope; 5. the soft metal thin slice of auxiliary typing when mouth mask is worn.Figure (2) covers the field emission electron scanned photograph of carrying metallic copper, silver composite for the activated carbon fiber surface of embodiment 9, and enlargement ratio is 100000 times.Figure (3) covers the field emission electron scanned photograph of a year metallic copper, silver composite for the activated carbon of embodiment 10 and zeolite surface, and enlargement ratio is 30000 times.
The specific embodiment
Being described further below in conjunction with embodiment, is not limitation of the invention.
The configuration design of mouth mask is undertaken by accompanying drawing (1).
A. the making that divides the body structure mouth mask: the soft metal thin slice 5 by mouth mask outer face mask 1, velcro 2, the mouth mask internal layer 3 that the sorbing material of the high-specific surface area that covers carrying metal ion is housed, mouth mask rope 4, auxiliary typing is formed.Outer face mask 1 the right and left at mouth mask respectively has an opening, and 3 is the internal layer that the sorbing material of the high-specific surface area that covers carrying metal ion is housed, with velcro 2 lockings.
B. the design of disposable mask: do not want velcro 2, directly sew up other same A.
Be equipped with in the mouth mask internal layer to possess and filter suspensions such as molecule, bacterium, virus in the absorbed air, have the sorbing material of the high-specific surface area that covers carrying metal ion of kill bacteria, viral function simultaneously.The performance test methods of its kill bacteria, virus is with reference to GB15979, and its test result sees Table (1).
Embodiment 1
With 10ml 0.01M AgNO
3The specific surface that the aqueous solution directly is sprayed at 80mm * 125mm is 1200M
2/ g, loft are on the active carbon fiber felt of 5~8mm, dry 2 hours for 100~120 ℃, are sewn into the internal layer that size is about 80mm * 125mm with nonwoven, are filled in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 2
With the specific surface of 80mm * 125mm is 1200M
2/ g, loft are that the active carbon fiber felt of 5~8mm is immersed in 200ml0.02M CuSO
4With 0.1M ZnCl
2In the mixed aqueous solution 1.5 hours, after the taking-up, drain, 120~150 ℃ of oven dry 2 hours are sewn into the internal layer that size is about 80mm * 125mm with nonwoven, are filled in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 3
With the specific surface of 80mm * 125mm is 1000M
2/ g, loft are that the active carbon fiber felt of 5~8mm is immersed in 200ml 0.02M AgNO
3With 0.02M CuSO
4In the mixed aqueous solution 1 hour, after the taking-up, drain, 100~120 ℃ of oven dry 2 hours are sewn into the internal layer that size is about 80mm * 125mm with double gauze, are filled in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 4
The active carbon of 12g is immersed in 100ml 0.01M AgNO
3Stirred 1 hour in the aqueous solution, after the taking-up, filter, dried 2 hours for 120~150 ℃, be sewn into the internal layer that size is about 80mm * 125mm, make in the mouth mask outer face mask of 100mm * 185mm with two-layer nonwoven.
Embodiment 5
With active carbon and the 3g specific surface of 10g is 700M
2/ g, average length are that the activated carbon fiber of 50mm is immersed in 200ml0.01M AgNO
3In the aqueous solution 1 hour, after the taking-up, to filter, 100~120 ℃ of oven dry 2 hours are sewn into the internal layer that size is about 80mm * 125mm with two-layer nonwoven, make in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 6
With the specific surface of 80mm * 125mm is 700M
2/ g, loft are that the active carbon fiber felt of 5~8mm is immersed in the 200ml0.01M silver citrate aqueous solution 1 hour, after the taking-up, drain, and 100~120 ℃ of oven dry 2 hours wherein have part citric acid silver to be reduced into nano-Ag particles.Be sewn into the internal layer that size is about 80mm * 125mm with nonwoven, be filled in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 7
With the specific surface of 16g is 700M
2/ g, average length are that the activated carbon fiber of 50mm is immersed in 200ml 0.01M AgNO
3In the aqueous solution, stir adding 0.05M oxalic acid 20ml down, stirred 20 minutes, formation silver oxalate precipitation is filtered, distilled water washing 3 times, dried 3 hours for 80~100 ℃, be sewn into the internal layer that size is about 80mm * 125mm, make in the mouth mask outer face mask of 100mm * 185mm with nonwoven.
Embodiment 8
With the specific surface of 16g is 700M
2/ g, average length are that the activated carbon fiber of 50mm is immersed in 200ml 0.1M ZnSO
4In the aqueous solution 1 hour, to filter, 120~150 ℃ of oven dry 2 hours are sewn into the internal layer that size is about 80mm * 125mm with nonwoven, make in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 9
With the specific surface of 16g is 700M
2/ g, average length are that the activated carbon fiber of 50mm is immersed in 100ml 0.01M AgNO
3In 0.20M copper nitrate mixed solution, under stirring, 25ml 3.0M hydrazine hydrate is added in the mixed solution, stirred 20 minutes, filter, distilled water washing 3 times, absolute ethanol washing 2 times was dried 3 hours for 100~120 ℃, be sewn into the internal layer that size is about 80mm * 125mm with nonwoven, make in the mouth mask outer face mask of 100mm * 185mm.
Embodiment 10
Just the active carbon of 10g and 5g zeolite are immersed in 100ml 0.01M AgNO
3In 0.25M copper sulphate mixed solution, under stirring, 25ml 3.0M hydrazine hydrate is added in the mixed solution, stirred 20 minutes, filter, distilled water washing 3 times, absolute ethanol washing 2 times was dried 3 hours for 120~150 ℃, be sewn into the internal layer that size is about 80mm * 125mm with nonwoven, make in the mouth mask outer face mask of 100mm * 185mm.Table (1), cover the sterilizing rate (%) of the sorbing material of carrying metal ion
Claims (10)
1. sterilization anti-poison respirator and preparation method thereof is made up of outer face mask 1, internal layer 3, mouth mask rope 4, the auxiliary soft metal thin slice 5 of finalizing the design of mouth mask, it is characterized in that the internal layer 3 of mouth mask is equipped with the sorbing material of the high-specific surface area that covers carrying metal ion; Wherein:
The sorbing material of described high-specific surface area is a kind of of activated carbon fiber, active carbon fiber felt, active carbon, zeolite at least;
The described carrying metal ion that covers is a kind of of silver ion, copper ion and zinc ion at least.
2. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, the sorbing material that it is characterized in that covering the high-specific surface area of carrying metal ion is to adopt directly absorption in sorbing material and a kind of soluble-salt solution that comprises silver ion, copper ion and zinc ion accordingly at least, and oven dry is made then.
3. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, the sorbing material that it is characterized in that covering the high-specific surface area of carrying metal ion is to adopt a kind of soluble-salt solution that will comprise silver ion, copper ion and zinc ion at least evenly to be sprayed at the sorbing material surface, and oven dry is made then.
4. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, the sorbing material that it is characterized in that covering the high-specific surface area of carrying metal ion is to adopt the mode of chemical reaction to form a kind of slightly soluble salt that comprises silver ion, copper ion and zinc ion at least to cover and be loaded in the sorbing material surface, and oven dry is made then.
5. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, the sorbing material that it is characterized in that covering the high-specific surface area of carrying metal ion be adopt the mode of chemical reaction to form to comprise silver at least, a kind of nano-metal particle of copper covers and is loaded in the sorbing material surface, oven dry is made then.
6. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, the sorbing material that it is characterized in that covering the high-specific surface area of carrying metal ion be adopt the mode of chemical reaction to form to comprise at least a kind of slightly soluble salt of argent ion, copper ion and comprise argent at least, a kind of nano-particle complex of copper covers and is loaded in the sorbing material surface, oven dry is made then.
7. as described a kind of sterilization anti-poison respirator of claim 1~6 and preparation method thereof, when it is characterized in that preparing the sorbing material of the high-specific surface area that covers carrying metal ion, the solution that is adopted is the solution that a kind of concentration of silver ion, copper ion and zinc ion is not less than 0.1mMol/l at least.
8. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, it is characterized in that it being to coat the dried sorbing material that covers the high-specific surface area of carrying metal ion at least with gauze, nonwoven a kind of, the internal layer 3 of mouth mask is made in stitching, adopt directly stitching and mouth mask rope 4, auxiliary soft metal thin slice of finalizing the design 5 to form disposable breathing masks with the outer cover 1 of mouth mask.
9. a kind of sterilization anti-poison respirator as claimed in claim 1 and preparation method thereof, it is characterized in that it being to coat the dried sorbing material that covers the high-specific surface area of carrying metal ion at least with gauze, nonwoven a kind of, the internal layer 3 of mouth mask is made in stitching, makes the branch body structure mouth mask of being convenient to unpick and wash with outer cover 1, velcro 2, mouth mask rope 4,5 combinations of auxiliary soft metal thin slice of finalizing the design of mouth mask.
10. as described a kind of sterilization anti-poison respirator of claim 1~8 and preparation method thereof, it is characterized in that soft metal thin slice 5 is a kind of of aluminium flake, zinc metal sheet, copper sheet and ormolu sheet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031097790A CN100490925C (en) | 2003-04-21 | 2003-04-21 | Sterilizing and toxicant preventing breathing mask and its preparation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB031097790A CN100490925C (en) | 2003-04-21 | 2003-04-21 | Sterilizing and toxicant preventing breathing mask and its preparation method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1442214A true CN1442214A (en) | 2003-09-17 |
CN100490925C CN100490925C (en) | 2009-05-27 |
Family
ID=27796760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031097790A Expired - Lifetime CN100490925C (en) | 2003-04-21 | 2003-04-21 | Sterilizing and toxicant preventing breathing mask and its preparation method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100490925C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102283450A (en) * | 2010-06-18 | 2011-12-21 | 陈宏真 | Silver ion sterilization mask and manufacturing method thereof |
CN102573996A (en) * | 2009-10-19 | 2012-07-11 | 小河铜株式会社 | Mask filter, method for producing same, pocket for mask filter, and mask |
WO2012155344A1 (en) * | 2011-05-18 | 2012-11-22 | 河南天源环保高科股份有限公司 | Fiber capable of absorbing iodine and preparation method and use thereof |
TWI401100B (en) * | 2007-06-26 | 2013-07-11 | Filligent Ltd | Devices and methods for decreasing human pathogen transmission |
CN106031530A (en) * | 2015-03-16 | 2016-10-19 | 华北电力大学(保定) | Anti-haze disinfecting mouth mask and preparation method |
CN107586066A (en) * | 2017-07-27 | 2018-01-16 | 巢湖市荣达塑业有限公司 | A kind of washing machine counter weight with bacteria-eliminating efficacy |
CN115279463A (en) * | 2020-01-17 | 2022-11-01 | 菲利斯·J·库恩 | Mask and removable biocidal metal or biocidal metal alloy insert |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010139189A1 (en) * | 2009-06-01 | 2010-12-09 | Jiang Zhunfei | Outer pressing respirator mask |
CN111941953B (en) | 2020-08-19 | 2021-08-06 | 浙江大学 | Multilayer copper-based zeolite fiber medical material, medical protective product and manufacturing method thereof |
-
2003
- 2003-04-21 CN CNB031097790A patent/CN100490925C/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI401100B (en) * | 2007-06-26 | 2013-07-11 | Filligent Ltd | Devices and methods for decreasing human pathogen transmission |
CN101720254B (en) * | 2007-06-26 | 2014-02-26 | 菲利根有限公司 | Devices and methods for decreasing human pathogen transmission |
CN102573996A (en) * | 2009-10-19 | 2012-07-11 | 小河铜株式会社 | Mask filter, method for producing same, pocket for mask filter, and mask |
CN102573996B (en) * | 2009-10-19 | 2014-10-15 | 小河铜株式会社 | Mask filter, method for producing same, pocket for mask filter, and mask |
CN102283450A (en) * | 2010-06-18 | 2011-12-21 | 陈宏真 | Silver ion sterilization mask and manufacturing method thereof |
WO2012155344A1 (en) * | 2011-05-18 | 2012-11-22 | 河南天源环保高科股份有限公司 | Fiber capable of absorbing iodine and preparation method and use thereof |
CN106031530A (en) * | 2015-03-16 | 2016-10-19 | 华北电力大学(保定) | Anti-haze disinfecting mouth mask and preparation method |
CN106031530B (en) * | 2015-03-16 | 2018-03-20 | 华北电力大学(保定) | A kind of haze antiseptic face mask and preparation method |
CN107586066A (en) * | 2017-07-27 | 2018-01-16 | 巢湖市荣达塑业有限公司 | A kind of washing machine counter weight with bacteria-eliminating efficacy |
CN115279463A (en) * | 2020-01-17 | 2022-11-01 | 菲利斯·J·库恩 | Mask and removable biocidal metal or biocidal metal alloy insert |
Also Published As
Publication number | Publication date |
---|---|
CN100490925C (en) | 2009-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3452923B2 (en) | Universal impregnated activated carbon for respirator without chromium to adsorb toxic gases and / or vapors | |
CN102697209B (en) | Efficient dust respirator and production method thereof | |
CN100490925C (en) | Sterilizing and toxicant preventing breathing mask and its preparation method | |
KR102278739B1 (en) | Absorbent comprising zeolitic imidazolate framework for absorbing chemical warfare agents and application thereof | |
CN204816222U (en) | Air purification filter screen | |
CN106669604A (en) | Air purifying material capable of removing ammonia and secondhand smoke and preparation method thereof | |
CN111535033B (en) | Preparation method and application of iodine antimicrobial microporous fiber material | |
CN110142057B (en) | Ag/g-C3N4Bamboo charcoal/montmorillonite composite material and application thereof | |
CN1566513A (en) | Antibacterial active carbon fiber | |
CN102677526B (en) | Environmental-friendly rice paper and preparation method thereof | |
CN107243321B (en) | A kind of air cleaning material of long-acting removal organic polluter | |
CN1587037A (en) | Active carbon loading silver and its preparing method and use | |
CN108385274A (en) | A kind of static spinning membrane and its preparation method and application with adsoption catalysis function | |
CN107617313A (en) | A kind of filtering glued membrane for the middle organic pollution that purifies the air of a room and preparation method thereof | |
CN107298060A (en) | Roof of the vehicle and manufacture method with function of removing formaldehyde | |
CN106938164A (en) | A kind of anti-haze immunologic function film and preparation method and application | |
CN207412537U (en) | A kind of hat type air cleaning unit | |
CN202264460U (en) | Fabric for generating negative ion | |
CN116999598B (en) | Inorganic deodorant and preparation process thereof | |
CN108325107A (en) | Water-filtering haze-proof mask | |
CN208975021U (en) | A kind of fireman's special double-layer filtermask | |
CN109758831A (en) | The preparation method of high-efficiency air filtering material | |
CN112755953B (en) | Adsorbent for removing nitrogen oxides in fluid, preparation method and application | |
CN109011920B (en) | Antibacterial air filtering membrane | |
CN105231527A (en) | High-function filter film and preparation method thereof and mask with multiple filter functions |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: 100088 Beijing City, Haidian District Huayuan Road No. 13 Jardine center 517 Patentee after: Wang Jiajun Address before: 100088, tower 4, tower 43, North Third Ring Road, Beijing, 1-06 Patentee before: Wang Jiajun |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20090527 |