CN106072905A - A kind of chitin mouth mask and preparation method thereof - Google Patents
A kind of chitin mouth mask and preparation method thereof Download PDFInfo
- Publication number
- CN106072905A CN106072905A CN201610399819.9A CN201610399819A CN106072905A CN 106072905 A CN106072905 A CN 106072905A CN 201610399819 A CN201610399819 A CN 201610399819A CN 106072905 A CN106072905 A CN 106072905A
- Authority
- CN
- China
- Prior art keywords
- chitin
- layer
- nexine
- mouth mask
- meltblown fabric
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/02—Layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
Abstract
The invention discloses a kind of chitin mouth mask, including cover body, built-in nose clip bar and cover band, described cover body includes surface layer, chitin layer, meltblown fabric layer and nexine, surface layer is positioned at outermost layer, and nexine is positioned at innermost layer, and cover band is arranged on the both sides of cover body, built-in nose clip bar is arranged on the outside of nexine, nexine and surface layer use antiseized nonwoven cloth material to make, and meltblown fabric layer uses the fusion spray cloth material with filtration to make, and the non-woven fabrics that chitin layer uses chitin content to be 5% 8% makes.The present invention also disclosed the preparation method of this chitin mouth mask.The present invention can repel PM2.5 positively charged in air by the positively charged chitin of outer layer, and chitin also has bacteriostasis, can meet the needs of medical worker and relevant staff；The present invention also has meltblown fabric layer, can effectively filter the tiny bacterium not being blocked and particulate matter, it is achieved duplicate protection, extend the service life of mouth mask；User also can regulate the adjusting button on cover band according to oneself demand.
Description
Technical field
The present invention relates to a kind of mouth mask, specifically a kind of chitin mouth mask.
Background technology
With the discharge of industrial expansion and vehicle exhaust, the pollution problem of air is increasingly severe, haze problem also day
Benefit is serious, and people more pay attention to the disease problems being caused by air pollution.People commonly use and wear mouth mask to tackle air dirt
Dye, occurs diversified mouth mask on the market, and existing mouth mask uses the mode adsorbed or filter to stop that PM2.5 sucks mostly
Human body, but such mode PM2.5 still can be adsorbed on mouth mask, and the mouth mask that Long-Time Service has adsorbed PM2.5 not only can block
Mouth mask, affects the breathing of user, reduces the service life of mouth mask, and the PM2.5 being accumulated on mouth mask easily sucks human body
In, give rise to diseases.In addition, the alone filtration method of PM2.5 is especially difficult, the Fiber Materials of counterpart cap layer number requires harshness.
Content of the invention
It is an object of the invention to provide a kind of chitin mouth mask, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of chitin mouth mask, including cover body, built-in nose clip bar and cover band, described cover body includes surface layer, chitin layer, fusion spray cloth
Layer and nexine, surface layer is positioned at outermost layer, and nexine is positioned at innermost layer, and cover band is arranged on the both sides of cover body, and built-in nose clip bar is arranged on
The outside of nexine, nexine and surface layer use antiseized nonwoven cloth material to make, and meltblown fabric layer uses the fusion spray cloth with filtration
Material makes, and the non-woven fabrics that chitin layer uses chitin content to be 5%-8% makes.
As the further scheme of the present invention: the avris of cover band is provided with the adjusting button for regulating cover band, cover band uses
The mode of welding is connected to cover body both sides, and the density of meltblown fabric layer is 30 g/m3-50 g/m3。
As the further scheme of the present invention: cover band uses elastomeric material to make, and built-in nose clip strip adoption has bending work(
The plastic material of energy makes.
The preparation method of described chitin mouth mask, specifically comprises the following steps that
Long filament after polymer extrusion and stretching are formed continuous filament yarn, then is laid to net by step one, and fibre web adds through bonding again
Gu, finally make fibre web become non-woven fabrics, then be fabricated to nexine and surface layer；Melt is filtered and measures, then by melt from spray
Silk hole extrusion, melt stream drawing-off and cooling, finally become net, prepare fusion spray cloth, then fusion spray cloth is fabricated to meltblown fabric layer；By dense
The spinning solution that degree is 3%-10% is through filtering and measuring, and then melt is extruded by spinneret orifice, melt stream drawing-off and cooling,
The solidification of rear stoste separates out and forms fiber, then beats piece become non-woven fabrics of chitin through chopping, combing, roll-in, then by non-woven fabrics of chitin
It is fabricated to chitin layer；
Step 2, will prepare gained surface layer, chitin layer, meltblown fabric layer and nexine four layers according to inside and outside respectively by four stations
Order is transported to conveyer；
Built-in nose clip bar, in the moment of surface layer, chitin layer, meltblown fabric layer and nexine contact, is inserted by step 3 by manipulator
Enter centre, then use ultrasonic heat locking device to be connected as a single entity said components；
Step 4, step 3 products therefrom passes through while transmitting and folds device and ultrasonic heat locking device so that mouth mask becomes
Type；
The mouth mask of shaping is carried out cutting, is then received the cover tape welding with adjusting button by ultrasonic spot welder by step 5
Cover body both sides, i.e. can get finished product.
Compared with prior art, the invention has the beneficial effects as follows: the present invention can pass through the positively charged chitin of outer layer
Repelling PM2.5 positively charged in air, chitin also has bacteriostasis, can meet the need of medical worker and relevant staff
Want；The present invention also has meltblown fabric layer, can effectively filter the tiny bacterium not being blocked and particulate matter, thus realize dual guarantor
Protect, extend the service life of mouth mask；User also can regulate the adjusting button on cover band according to oneself demand, it is adaptable to different
People.
Brief description
Fig. 1 is the structural representation of chitin mouth mask.
Wherein: 1-cover body, 11-surface layer, 12-chitin layer, 13-meltblown fabric layer, 14-nexine, 2-built-in nose clip bar, 3-covers
Band, 4-adjusting button.
Detailed description of the invention
It is described in more detail below in conjunction with the technical scheme to this patent for the detailed description of the invention.
Embodiment 1
A kind of chitin mouth mask, including cover body, built-in nose clip bar and cover band, described cover body includes surface layer, chitin layer, fusion spray cloth
Layer and nexine, surface layer is positioned at outermost layer, and nexine is positioned at innermost layer, and cover band is arranged on the both sides of cover body, and built-in nose clip bar is arranged on
The outside of nexine, nexine and surface layer use antiseized nonwoven cloth material to make, and meltblown fabric layer uses the fusion spray cloth with filtration
Material makes, and the non-woven fabrics that chitin layer uses chitin content to be 5% makes.The avris of cover band is provided with for regulating cover band
Adjusting button, cover band use weld mode be connected to cover body both sides, the density of meltblown fabric layer is 35 g/m3.Cover band uses bullet
Property material make, built-in nose clip strip adoption have bending function plastic material make.
The preparation method of described chitin mouth mask, specifically comprises the following steps that
Long filament after polymer extrusion and stretching are formed continuous filament yarn, then is laid to net by step one, and fibre web adds through bonding again
Gu, finally make fibre web become non-woven fabrics, then be fabricated to nexine and surface layer；Melt is filtered and measures, then by melt from spray
Silk hole extrusion, melt stream drawing-off and cooling, finally become net, prepare fusion spray cloth, then fusion spray cloth is fabricated to meltblown fabric layer；By dense
Degree be 3% spinning solution through filter and metering, then melt is extruded by spinneret orifice, melt stream drawing-off and cooling, finally former
Liquid solidification separates out and forms fiber, then beats piece and become non-woven fabrics of chitin through chopping, combing, roll-in, then make non-woven fabrics of chitin
Become chitin layer；
Step 2, will prepare gained surface layer, chitin layer, meltblown fabric layer and nexine four layers according to inside and outside respectively by four stations
Order is transported to conveyer；
Built-in nose clip bar, in the moment of surface layer, chitin layer, meltblown fabric layer and nexine contact, is inserted by step 3 by manipulator
Enter centre, then use ultrasonic heat locking device to be connected as a single entity said components；
Step 4, step 3 products therefrom passes through while transmitting and folds device and ultrasonic heat locking device so that mouth mask becomes
Type；
The mouth mask of shaping is carried out cutting, is then received the cover tape welding with adjusting button by ultrasonic spot welder by step 5
Cover body both sides, i.e. can get finished product.
Embodiment 2
A kind of chitin mouth mask, including cover body, built-in nose clip bar and cover band, described cover body includes surface layer, chitin layer, fusion spray cloth
Layer and nexine, surface layer is positioned at outermost layer, and nexine is positioned at innermost layer, and cover band is arranged on the both sides of cover body, and built-in nose clip bar is arranged on
The outside of nexine, nexine and surface layer use antiseized nonwoven cloth material to make, and meltblown fabric layer uses the fusion spray cloth with filtration
Material makes, and the non-woven fabrics that chitin layer uses chitin content to be 6% makes.The avris of cover band is provided with for regulating cover band
Adjusting button, cover band use weld mode be connected to cover body both sides, the density of meltblown fabric layer is 44 g/m3.Cover band uses bullet
Property material make, built-in nose clip strip adoption have bending function plastic material make.
The preparation method of described chitin mouth mask, specifically comprises the following steps that
Long filament after polymer extrusion and stretching are formed continuous filament yarn, then is laid to net by step one, and fibre web adds through bonding again
Gu, finally make fibre web become non-woven fabrics, then be fabricated to nexine and surface layer；Melt is filtered and measures, then by melt from spray
Silk hole extrusion, melt stream drawing-off and cooling, finally become net, prepare fusion spray cloth, then fusion spray cloth is fabricated to meltblown fabric layer；By dense
Degree be 6% spinning solution through filter and metering, then melt is extruded by spinneret orifice, melt stream drawing-off and cooling, finally former
Liquid solidification separates out and forms fiber, then beats piece and become non-woven fabrics of chitin through chopping, combing, roll-in, then make non-woven fabrics of chitin
Become chitin layer；
Step 2, will prepare gained surface layer, chitin layer, meltblown fabric layer and nexine four layers according to inside and outside respectively by four stations
Order is transported to conveyer；
Built-in nose clip bar, in the moment of surface layer, chitin layer, meltblown fabric layer and nexine contact, is inserted by step 3 by manipulator
Enter centre, then use ultrasonic heat locking device to be connected as a single entity said components；
Step 4, step 3 products therefrom passes through while transmitting and folds device and ultrasonic heat locking device so that mouth mask becomes
Type；
The mouth mask of shaping is carried out cutting, is then received the cover tape welding with adjusting button by ultrasonic spot welder by step 5
Cover body both sides, i.e. can get finished product.
Embodiment 3
A kind of chitin mouth mask, including cover body, built-in nose clip bar and cover band, described cover body includes surface layer, chitin layer, fusion spray cloth
Layer and nexine, surface layer is positioned at outermost layer, and nexine is positioned at innermost layer, and cover band is arranged on the both sides of cover body, and built-in nose clip bar is arranged on
The outside of nexine, nexine and surface layer use antiseized nonwoven cloth material to make, and meltblown fabric layer uses the fusion spray cloth with filtration
Material makes, and the non-woven fabrics that chitin layer uses chitin content to be 8% makes.The avris of cover band is provided with for regulating cover band
Adjusting button, cover band use weld mode be connected to cover body both sides, the density of meltblown fabric layer is 50g/m3.Cover band uses elasticity
Material makes, and the plastic material that built-in nose clip strip adoption has bending function makes.
The preparation method of described chitin mouth mask, specifically comprises the following steps that
Long filament after polymer extrusion and stretching are formed continuous filament yarn, then is laid to net by step one, and fibre web adds through bonding again
Gu, finally make fibre web become non-woven fabrics, then be fabricated to nexine and surface layer；Melt is filtered and measures, then by melt from spray
Silk hole extrusion, melt stream drawing-off and cooling, finally become net, prepare fusion spray cloth, then fusion spray cloth is fabricated to meltblown fabric layer；By dense
Degree be 10% spinning solution through filter and metering, then melt is extruded by spinneret orifice, melt stream drawing-off and cooling, finally
Stoste solidification separates out and forms fiber, then beats piece become non-woven fabrics of chitin through chopping, combing, roll-in, then by non-woven fabrics of chitin system
It is made chitin layer；
Step 2, will prepare gained surface layer, chitin layer, meltblown fabric layer and nexine four layers according to inside and outside respectively by four stations
Order is transported to conveyer；
Built-in nose clip bar, in the moment of surface layer, chitin layer, meltblown fabric layer and nexine contact, is inserted by step 3 by manipulator
Enter centre, then use ultrasonic heat locking device to be connected as a single entity said components；
Step 4, step 3 products therefrom passes through while transmitting and folds device and ultrasonic heat locking device so that mouth mask becomes
Type；
The mouth mask of shaping is carried out cutting, is then received the cover tape welding with adjusting button by ultrasonic spot welder by step 5
Cover body both sides, i.e. can get finished product.
The material of main part of mouth mask have employed the double shielding of chitin layer and meltblown fabric layer, uses filtration to add positive charge and repels
Mode, mouth mask of breaking the normal procedure can only adsorb or only filtrable mode.Chitin layer is positively charged, can effectively repel in air
Positively charged PM2.5, extends the service life of mouth mask, and chitin also has bacteriostasis, can effectively suppress the growth of bacterium
Breeding；Also having meltblown fabric layer on cover body, effectively stopping the tiny bacterium and particulate matter not being ostracised in air, obstruct flies
Foam, blood, Fluids and secretions etc., it is achieved that duplicate protection.Increase adjusting button simultaneously on cover body, meet consumers in general
Different demands, and built-in nose clip bar can effectively prevent coming off and injured skin of nose clip bar.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art is possessed, can also be on the premise of without departing from this patent objective
Make a variety of changes.
Claims (4)
1. a chitin mouth mask, it is characterised in that including cover body, built-in nose clip bar and cover band, described cover body includes surface layer, first
Shell element layer, meltblown fabric layer and nexine, surface layer is positioned at outermost layer, and nexine is positioned at innermost layer, and cover band is arranged on the both sides of cover body, built-in
Nose clip bar is arranged on the outside of nexine, and nexine and surface layer use antiseized nonwoven cloth material to make, and meltblown fabric layer uses has filtration
The fusion spray cloth material of effect makes, and the non-woven fabrics that chitin layer uses chitin content to be 5%-8% makes.
2. chitin mouth mask according to claim 1, it is characterised in that the avris of described cover band is provided with for regulating cover
The adjusting button of band, the mode with using welding for the cover is connected to cover body both sides, and the density of meltblown fabric layer is 30 g/m3-50g/m3。
3. chitin mouth mask according to claim 1, it is characterised in that described cover band uses elastomeric material to make, built-in
The plastic material that nose clip strip adoption has bending function makes.
4. the preparation method of the chitin mouth mask as described in claim 1-3 is arbitrary, it is characterised in that concrete steps are such as
Under:
Long filament after polymer extrusion and stretching are formed continuous filament yarn, then is laid to net by step one, and fibre web adds through bonding again
Gu, finally make fibre web become non-woven fabrics, then be fabricated to nexine and surface layer；Melt is filtered and measures, then by melt from spray
Silk hole extrusion, melt stream drawing-off and cooling, finally become net, prepare fusion spray cloth, then fusion spray cloth is fabricated to meltblown fabric layer；By dense
The spinning solution that degree is 3%-10% is through filtering and measuring, and then melt is extruded by spinneret orifice, melt stream drawing-off and cooling,
The solidification of rear stoste separates out and forms fiber, then beats piece become non-woven fabrics of chitin through chopping, combing, roll-in, then by non-woven fabrics of chitin
It is fabricated to chitin layer；
Step 2, will prepare gained surface layer, chitin layer, meltblown fabric layer and nexine four layers according to inside and outside respectively by four stations
Order is transported to conveyer；
Built-in nose clip bar, in the moment of surface layer, chitin layer, meltblown fabric layer and nexine contact, is inserted by step 3 by manipulator
Enter centre, then use ultrasonic heat locking device to be connected as a single entity said components；
Step 4, step 3 products therefrom passes through while transmitting and folds device and ultrasonic heat locking device so that mouth mask becomes
Type；
The mouth mask of shaping is carried out cutting, is then received the cover tape welding with adjusting button by ultrasonic spot welder by step 5
Cover body both sides, i.e. can get finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399819.9A CN106072905A (en) | 2016-06-08 | 2016-06-08 | A kind of chitin mouth mask and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399819.9A CN106072905A (en) | 2016-06-08 | 2016-06-08 | A kind of chitin mouth mask and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106072905A true CN106072905A (en) | 2016-11-09 |
Family
ID=57227485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399819.9A Pending CN106072905A (en) | 2016-06-08 | 2016-06-08 | A kind of chitin mouth mask and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106072905A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109757808A (en) * | 2017-11-07 | 2019-05-17 | 深中海医疗用品（深圳）有限公司 | Cup type mask manufacturing method and cup type mask |
| CN111572081A (en) * | 2020-05-20 | 2020-08-25 | 广州市赛康尼机械设备有限公司 | Mask folding edge welding machine |
| CN112021694A (en) * | 2020-09-07 | 2020-12-04 | 龙海市福龙实业有限公司 | Multilayer combined medical protective mask and manufacturing method thereof |
| CN112043030A (en) * | 2020-08-04 | 2020-12-08 | 冯建国 | Manufacturing method of melt-blown non-woven fabric, melt-blown non-woven fabric and product |
| CN114571813A (en) * | 2021-05-17 | 2022-06-03 | 揭阳空港区合众广益无纺布制品有限公司 | Method for manufacturing disposable protective sleeve with function of filtering germs |
| CN115088893A (en) * | 2022-08-15 | 2022-09-23 | 宁波利安科技股份有限公司 | Antibacterial breathable mask, mask assembly, mask processing technology and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666204Y (en) * | 2003-10-28 | 2004-12-29 | 南京中脉科技发展有限公司 | Medical protective mask |
| CN202340874U (en) * | 2011-11-22 | 2012-07-25 | 李虹光 | Composite plus material of oxygenation type anti-bacterium mask |
| CN104164754A (en) * | 2014-07-30 | 2014-11-26 | 上海圣得生物工程技术有限公司 | Chitin non-woven fabric and application thereof |
| CN204232348U (en) * | 2014-08-27 | 2015-04-01 | 杨璧玲 | A kind of melt-blown anion mask |
| CN204483132U (en) * | 2015-01-22 | 2015-07-22 | 吴坤山 | Mouth mask inner core |
-
2016
- 2016-06-08 CN CN201610399819.9A patent/CN106072905A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666204Y (en) * | 2003-10-28 | 2004-12-29 | 南京中脉科技发展有限公司 | Medical protective mask |
| CN202340874U (en) * | 2011-11-22 | 2012-07-25 | 李虹光 | Composite plus material of oxygenation type anti-bacterium mask |
| CN104164754A (en) * | 2014-07-30 | 2014-11-26 | 上海圣得生物工程技术有限公司 | Chitin non-woven fabric and application thereof |
| CN204232348U (en) * | 2014-08-27 | 2015-04-01 | 杨璧玲 | A kind of melt-blown anion mask |
| CN204483132U (en) * | 2015-01-22 | 2015-07-22 | 吴坤山 | Mouth mask inner core |
Non-Patent Citations (1)
| Title |
|---|
| 王婉芳编著: "《纺织品服装知识与实务》", 30 September 2013 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109757808A (en) * | 2017-11-07 | 2019-05-17 | 深中海医疗用品（深圳）有限公司 | Cup type mask manufacturing method and cup type mask |
| CN111572081A (en) * | 2020-05-20 | 2020-08-25 | 广州市赛康尼机械设备有限公司 | Mask folding edge welding machine |
| CN112043030A (en) * | 2020-08-04 | 2020-12-08 | 冯建国 | Manufacturing method of melt-blown non-woven fabric, melt-blown non-woven fabric and product |
| CN112043030B (en) * | 2020-08-04 | 2021-10-26 | 冯建国 | Manufacturing method of melt-blown non-woven fabric, melt-blown non-woven fabric and product |
| CN112021694A (en) * | 2020-09-07 | 2020-12-04 | 龙海市福龙实业有限公司 | Multilayer combined medical protective mask and manufacturing method thereof |
| CN114571813A (en) * | 2021-05-17 | 2022-06-03 | 揭阳空港区合众广益无纺布制品有限公司 | Method for manufacturing disposable protective sleeve with function of filtering germs |
| CN115088893A (en) * | 2022-08-15 | 2022-09-23 | 宁波利安科技股份有限公司 | Antibacterial breathable mask, mask assembly, mask processing technology and device |
| CN115088893B (en) * | 2022-08-15 | 2023-08-18 | 宁波利安科技股份有限公司 | Antibacterial breathable mask, mask assembly, mask processing technology and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106072905A (en) | A kind of chitin mouth mask and preparation method thereof | |
| TWI821187B (en) | Mask | |
| JP5175789B2 (en) | Composite nonwoven fabric for sanitary mask and method for producing the same | |
| JP4594180B2 (en) | mask | |
| CN204969589U (en) | Novel dustproof mask | |
| KR102159651B1 (en) | A mask including a sub-filter layer and having improved intake resistance and filtering efficiency | |
| CN207118628U (en) | Mouth mask | |
| CN111358620A (en) | Goggles for protecting against new coronavirus | |
| CN212306877U (en) | Bacteriostatic medical mask | |
| CN211379733U (en) | Mask | |
| CN211932704U (en) | Can prevent atomizing medical gauze mask of glasses | |
| CN204763518U (en) | Prevent dust mask of static | |
| CN214386193U (en) | Mask with glasses not producing fog | |
| CN209898342U (en) | Ear-hang integrated sponge mask | |
| CN216545139U (en) | High-dust-capacity medical high-efficiency low-resistance mask filter material | |
| CN213720101U (en) | Antibacterial and bacteriostatic mask for preventing secondary infection | |
| CN214317089U (en) | Cold-proof polylactic acid gauze mask | |
| CN212465023U (en) | Non-woven fabric mask | |
| CN209967464U (en) | Novel infectious disease protective cover | |
| CN215124597U (en) | A Chinese medicinal mask for inhibiting bacteria and resisting bacteria | |
| CN212574208U (en) | Mask with replaceable filtering antibacterial layer | |
| CN212592689U (en) | Goggles for protecting against new coronavirus | |
| CN215958458U (en) | Non-woven fabric for mask | |
| CN213908671U (en) | Antiviral disposable common clinic medical mask | |
| CN214179252U (en) | Natural antibacterial mask |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |