CN109011842A - A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning - Google Patents

A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning Download PDF

Info

Publication number
CN109011842A
CN109011842A CN201810974930.5A CN201810974930A CN109011842A CN 109011842 A CN109011842 A CN 109011842A CN 201810974930 A CN201810974930 A CN 201810974930A CN 109011842 A CN109011842 A CN 109011842A
Authority
CN
China
Prior art keywords
fibre
fibre web
acrylic fibers
base fabric
filter
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.)
Pending
Application number
CN201810974930.5A
Other languages
Chinese (zh)
Inventor
李瑞乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HENAN ANKELIN FILTERING CO Ltd
Original Assignee
HENAN ANKELIN FILTERING CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HENAN ANKELIN FILTERING CO Ltd filed Critical HENAN ANKELIN FILTERING CO Ltd
Priority to CN201810974930.5A priority Critical patent/CN109011842A/en
Publication of CN109011842A publication Critical patent/CN109011842A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/32Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/12Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/0004Cutting, tearing or severing, e.g. bursting; Cutter details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0442Antimicrobial, antibacterial, antifungal additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0253Polyolefin fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06Vegetal fibres
    • B32B2262/062Cellulose fibres, e.g. cotton
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/714Inert, i.e. inert to chemical degradation, corrosion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/714Inert, i.e. inert to chemical degradation, corrosion
    • B32B2307/7145Rot proof, resistant to bacteria, mildew, mould, fungi
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/70Other properties
    • B32B2307/724Permeability to gases, adsorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2327/00Polyvinylhalogenides
    • B32B2327/12Polyvinylhalogenides containing fluorine
    • B32B2327/18PTFE, i.e. polytetrafluoroethylene

Landscapes

  • Filtering Materials (AREA)

Abstract

The present invention relates to a kind of filter cottons and preparation method thereof for high-speed EMUs PM2.5 air cleaning, it includes filter layer and PTFE film under composite fibre base fabric, acrylic fibers fibre web antimicrobial filtering layer, acrylic fibers fibre web, composite fibre base fabric is combined by antistatic cotton and polypropylene fibre, the upper surface of composite fibre base fabric is equipped with acrylic fibers fibre web antimicrobial filtering layer, and the lower surface of composite fibre base fabric is equipped with filter layer under acrylic fibers fibre web;The upper surface of the acrylic fibers fibre web antimicrobial filtering layer is covered with PTFE film;Specific preparation method is the material requirements bonding preparation according to each layer, and then naturally dry, cuts and product is made;The filtering material filter effect is good, can not only cross the dust and impurities in air filtering, and have and inhibit bacterial reproduction and deodorization, gas defence antibacterial functions.

Description

A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning
Technical field
The invention belongs to air filting material technical fields, and in particular to one kind is net for high-speed EMUs PM2.5 air Filter cotton of change and preparation method thereof.
Background technique
In daily life and industrial production, haze mask application is very extensive, and people ensure incoming call gas using mask The quality of body, human health is closely related with environmental quality, and the whole world has half population just by the threat of anaphylactogen, people at present Live in rapid industrial development, the decline of air quality Japanese TV play, especially industry prosperity area air pollution level is usually than other Area is higher by 2-5 times, and with the appearance and implementation of PM2.5 standard, people also increase to the understanding of fine particle, it is necessary to logical It crosses effective filtering and removes these particles, could guarantee Green Travel, the physical and mental health of people.
Summary of the invention
It is provided the purpose of the present invention is overcome the deficiencies in the prior art a kind of for high-speed EMUs PM2.5 air cleaning Filter cotton and preparation method thereof, which can not only cross the dust and impurities in air filtering, and has and inhibit bacterium numerous It grows and deodorization, gas defence antibacterial functions.
In order to achieve the above object, the present invention adopts the following technical scheme:
The present invention provides a kind of filter cottons for high-speed EMUs PM2.5 air cleaning, it includes composite fibre base fabric, nitrile Filter layer and PTFE film under synthetic fibre fibre web antimicrobial filtering layer, acrylic fibers fibre web, composite fibre base fabric are fine by antistatic cotton and polypropylene Dimension is combined, and the upper surface of composite fibre base fabric is equipped with acrylic fibers fibre web antimicrobial filtering layer, and the lower surface of composite fibre base fabric is set There is filter layer under acrylic fibers fibre web;The upper surface of the acrylic fibers fibre web antimicrobial filtering layer is covered with PTFE film.
According to the above-mentioned filter cotton for high-speed EMUs PM2.5 air cleaning, the antistatic cotton is anti-to be adsorbed with The cotton fiber of electrostatic agent.
Filter cotton according to claim 1 for high-speed EMUs PM2.5 air cleaning, it is characterised in that described Filter layer is fibre web made of being reinforced by way of spun lacing as the acrylic fiber Jing Guo graft modification under acrylic fibers fibre web.
According to the above-mentioned filter cotton for high-speed EMUs PM2.5 air cleaning, the acrylic fibers fibre web antimicrobial filtering layer Using acrylic fiber as raw material, by pretreatment so that polyamines is reacted with the cyano on acrylic fiber, in grafting polyamino and its He reacts the azacyclo- of generation.
According to the above-mentioned filter cotton for high-speed EMUs PM2.5 air cleaning, the fiber of the polypropylene fibre is straight Diameter is 5-40nm.
According to the preparation method of the above-mentioned filter cotton for high-speed EMUs PM2.5 air cleaning, it includes following step It is rapid:
(1), the preparation of composite fibre base fabric: first preparing antistatic cotton, then logical using antistatic cotton and polypropylene fibre fiber The base fabric that the mode of spun lacing is woven into fibre web as composite filtering material is crossed,
(2), acrylic fibers fibre web antimicrobial filtering layer then is bonded in the upper surface of above-mentioned composite fibre base fabric, then in composite fibre base Filter layer under the lower surface bonding acrylic fibers fibre web of cloth;Finally PTFE film is covered in the upper surface of acrylic fibers fibre web antimicrobial filtering layer;
(3), naturally dry cuts and product is made.
Compared with prior art, the present invention obtain the utility model has the advantages that
1, the composite fibre base fabric compression strength in material of the present invention is high, good corrosion resistance, and filtration resistance is small;Acrylic fibers in material Fibre web antimicrobial filtering layer is, by special pre-treatment, the cyano on polyamines and acrylic fiber to occur using acrylic fiber as raw material It reacts, polyamino reacts the functional groups such as the azacyclo- generated with other in grafting, these functional groups are to common Gram-positive Bacterium, negative bacterium, fungi, anaerobic bacteria, pneumobacillus, staphylococcus aureus, Candida albicans etc. have stronger inhibitory or killing effect, Modified acrylic fiber is fabricated to antimicrobial filtering layer, is entirely free of metal ion, safe to the human body harmless, antibacterial effect is held Long, broad-spectrum high efficacy, it is environmentally protective and washable;PTFE film in the material can effectively filter dust.
2, material of the present invention can filter blocking haze, effective stealthy killer -- bacterial virus, automobile crossed in air filtering Tail gas, secondhand smoke, formaldehyde, dust mite, haze, Volatile chemical, air pollution poison gas, barrier droplet, Fluids and secretions make It is influenced with, the pellet as brought by vehicle exhaust, absorbs and filters pollution poison gas etc., be widely used in medical treatment and defend Raw industry, public arena;The mask either filter efficiency, gas permeability, antibiotic property, safety etc. for changing material production are all big Surmount common mask greatly.
Specific embodiment
Lower embodiment is to carry out detailed specific description to the content of present invention, but the contents of the present invention do not limit so.
Embodiment 1:
The present invention provides a kind of filter cottons for high-speed EMUs PM2.5 air cleaning, it includes composite fibre base fabric, nitrile Filter layer and PTFE film under synthetic fibre fibre web antimicrobial filtering layer, acrylic fibers fibre web, composite fibre base fabric are fine by antistatic cotton and polypropylene Dimension is combined, and the upper surface of composite fibre base fabric is equipped with acrylic fibers fibre web antimicrobial filtering layer, and the lower surface of composite fibre base fabric is set There is filter layer under acrylic fibers fibre web;The upper surface of the acrylic fibers fibre web antimicrobial filtering layer is covered with PTFE film;The acrylic fibers fibre web is anti- Bacterium filter layer makes polyamines react with the cyano on acrylic fiber using acrylic fiber as raw material, by pretreatment, more in grafting Amino reacts the azacyclo- generated with other.
The preparation method of the above-mentioned filter cotton for high-speed EMUs PM2.5 air cleaning, it the following steps are included:
(1), the preparation of composite fibre base fabric: first preparing antistatic cotton, then logical using antistatic cotton and polypropylene fibre fiber The base fabric that the mode of spun lacing is woven into fibre web as composite filtering material is crossed,
(2), acrylic fibers fibre web antimicrobial filtering layer then is bonded in the upper surface of above-mentioned composite fibre base fabric, then in composite fibre base Filter layer under the lower surface bonding acrylic fibers fibre web of cloth;Finally PTFE film is covered in the upper surface of acrylic fibers fibre web antimicrobial filtering layer;
(3), naturally dry cuts and product is made.
Embodiment 2:
The present embodiment part same as Example 1 is no longer repeated, difference be the above-mentioned antistatic cotton be adsorbed with resist it is quiet The cotton fiber of electric agent.
Embodiment 3:
The present embodiment part same as Example 1 is no longer repeated, and difference is under above-mentioned acrylic fibers fibre web that filter layer is by passing through Fibre web made of the acrylic fiber of graft modification is reinforced by way of spun lacing.
Embodiment 3:
The present embodiment part same as Example 1 is no longer repeated, and difference is that the fibre diameter of above-mentioned polypropylene fibre is 5- 40nm。
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (6)

1. a kind of filter cotton for high-speed EMUs PM2.5 air cleaning, it is characterised in that it includes composite fibre base fabric, nitrile Filter layer and PTFE film under synthetic fibre fibre web antimicrobial filtering layer, acrylic fibers fibre web, composite fibre base fabric are fine by antistatic cotton and polypropylene Dimension is combined, and the upper surface of composite fibre base fabric is equipped with acrylic fibers fibre web antimicrobial filtering layer, and the lower surface of composite fibre base fabric is set There is filter layer under acrylic fibers fibre web;The upper surface of the acrylic fibers fibre web antimicrobial filtering layer is covered with PTFE film.
2. the filter cotton according to claim 1 for high-speed EMUs PM2.5 air cleaning, it is characterised in that described anti- Electrostatic cotton is the cotton fiber for being adsorbed with antistatic agent.
3. the filter cotton according to claim 1 for high-speed EMUs PM2.5 air cleaning, it is characterised in that the nitrile Filter layer is fibre web made of being reinforced by way of spun lacing as the acrylic fiber Jing Guo graft modification under synthetic fibre fibre web.
4. the filter cotton according to claim 1 for high-speed EMUs PM2.5 air cleaning, it is characterised in that the nitrile Synthetic fibre fibre web antimicrobial filtering layer makes polyamines react with the cyano on acrylic fiber using acrylic fiber as raw material, by pretreatment, Polyamino reacts the azacyclo- generated with other in grafting.
5. the filter cotton according to claim 2 for high-speed EMUs PM2.5 air cleaning, it is characterised in that described poly- The fibre diameter of tacryl is 5-40nm.
6. the preparation method of the filter cotton according to claim 2 for high-speed EMUs PM2.5 air cleaning, feature Be it the following steps are included:
(1) preparation of composite fibre base fabric: first preparing antistatic cotton, is then passed through using antistatic cotton and polypropylene fibre fiber The mode of spun lacing is woven into base fabric of the fibre web as composite filtering material,
(2), acrylic fibers fibre web antimicrobial filtering layer then is bonded in the upper surface of above-mentioned composite fibre base fabric, then in composite fibre base Filter layer under the lower surface bonding acrylic fibers fibre web of cloth;Finally PTFE film is covered in the upper surface of acrylic fibers fibre web antimicrobial filtering layer;
(3), naturally dry cuts and product is made.
CN201810974930.5A 2018-08-24 2018-08-24 A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning Pending CN109011842A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810974930.5A CN109011842A (en) 2018-08-24 2018-08-24 A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810974930.5A CN109011842A (en) 2018-08-24 2018-08-24 A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning

Publications (1)

Publication Number Publication Date
CN109011842A true CN109011842A (en) 2018-12-18

Family

ID=64627643

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810974930.5A Pending CN109011842A (en) 2018-08-24 2018-08-24 A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning

Country Status (1)

Country Link
CN (1) CN109011842A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115897293A (en) * 2022-12-13 2023-04-04 河南省科学院化学研究所有限公司 Antibacterial air filtering material and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3530244B2 (en) * 1995-01-20 2004-05-24 帝人テクノプロダクツ株式会社 Durable filter cloth
CN204017538U (en) * 2014-08-22 2014-12-17 河南省安克林滤业有限公司 A kind of antibacterial composite filtering material
CN204147660U (en) * 2014-09-15 2015-02-11 天诺光电材料股份有限公司 A kind of middle high temperature non-weaving cloth top layer adds the filtering material of metalized fibers
CN104988618A (en) * 2015-05-29 2015-10-21 安徽省含山县顺天纺织有限公司 Stretch-proofing mekralon blending reprocessed cotton yarn and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3530244B2 (en) * 1995-01-20 2004-05-24 帝人テクノプロダクツ株式会社 Durable filter cloth
CN204017538U (en) * 2014-08-22 2014-12-17 河南省安克林滤业有限公司 A kind of antibacterial composite filtering material
CN204147660U (en) * 2014-09-15 2015-02-11 天诺光电材料股份有限公司 A kind of middle high temperature non-weaving cloth top layer adds the filtering material of metalized fibers
CN104988618A (en) * 2015-05-29 2015-10-21 安徽省含山县顺天纺织有限公司 Stretch-proofing mekralon blending reprocessed cotton yarn and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115897293A (en) * 2022-12-13 2023-04-04 河南省科学院化学研究所有限公司 Antibacterial air filtering material and preparation method thereof

Similar Documents

Publication Publication Date Title
CN211935979U (en) N95 filter core for antivirus
CN204409659U (en) A kind of mouth mask filter core for purifying PM2.5
CN105817087A (en) Composite type air purification filter element with multilayered structure
CN106861287B (en) A kind of air-conditioning air inlet filter screen air filtration non-woven fabrics and preparation method thereof
CN212754359U (en) Antibacterial and antiviral mask
CN112626718A (en) Method for preparing MOF (Metal organic framework)/cellulose/polyacrylonitrile mask filter layer
CN113457477A (en) Nanofiber filtering membrane and preparation method and application thereof
CN109011842A (en) A kind of filter cotton and preparation method thereof for high-speed EMUs PM2.5 air cleaning
CN113243589B (en) Washable long-acting filtering graphene antibacterial mask and preparation method thereof
CN107174868B (en) A kind of vehicle-mounted air purification piece and preparation method thereof
TWM619896U (en) Composite air-conditioning filter
CN109316829A (en) Preparation method of mould proof fungi-proofing hypo-allergenic anti-virus four-in-one air filtering material and products thereof and application
CN204017538U (en) A kind of antibacterial composite filtering material
CN111729119A (en) Air purification assembly with coronavirus killing function and application thereof
CN104174231A (en) Antibiotic air conditioner filter core
CN213554078U (en) Air purification assembly with coronavirus killing function and air purification device
CN204709950U (en) Filter cloth and cleaner
CN114887396A (en) Preparation method of air filtering material with good antibacterial, disinfecting and transparency properties
CN203829819U (en) Air filtering net
CN115054991B (en) Preparation method of reusable air filtering material with good sterilization comfort
CN205676269U (en) A kind of drinking water carbon fiber filter
CN215321092U (en) Activated carbon non-woven fabric
CN212708352U (en) Activated carbon non-woven fabric
CN213725290U (en) High-temperature air filter cloth containing static electricity
CN212025579U (en) Melt-blown fabric

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20181218

RJ01 Rejection of invention patent application after publication