CN112089134A - Preparation method of disinfection and sterilization type light and thin mask - Google Patents
Preparation method of disinfection and sterilization type light and thin mask Download PDFInfo
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- CN112089134A CN112089134A CN202011025174.5A CN202011025174A CN112089134A CN 112089134 A CN112089134 A CN 112089134A CN 202011025174 A CN202011025174 A CN 202011025174A CN 112089134 A CN112089134 A CN 112089134A
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- woven fabric
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- 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
-
- 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
- A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
- A41D31/102—Waterproof and breathable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultra-violet radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/30—Non-woven
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/40—Papers
Abstract
The invention discloses a preparation method of a disinfection and sterilization type light and thin mask, which comprises the following steps: s1: the following preparation raw materials were prepared: spun-bonded layer non-woven fabric, silk threads, nose bridge strips, melt-blown cloth, filter paper, bamboo charcoal fiber woven cloth, antistatic cloth, a waterproof and breathable film, a non-woven fabric edge covering material and ear bands; s2: dividing the spunbonded layer non-woven fabric into an outer spunbonded layer non-woven fabric and an inner spunbonded layer non-woven fabric; sequentially putting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the bamboo charcoal fiber woven fabric, the anti-static fabric, the non-woven fabric edge-wrapping material and the ear band on a workbench of a disinfection room; injecting alcohol solution into the spraying sterilizer, starting the spraying sterilizer, and spraying the alcohol solution on the preparation raw materials on the workbench. The mask production device is reasonable in design, production work of masks is realized through multiple disinfection and sterilization processes, production quality of the masks can be improved, and the adopted raw materials have good ventilation and waterproof effects and meet actual requirements.
Description
Technical Field
The invention relates to the technical field of mask production, in particular to a preparation method of a disinfection and sterilization type light and thin mask.
Background
The mask is a sanitary protective article for protecting a respiratory system from being soaked by haze, waste gas, dust, germs and the like, is generally worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to achieve the purpose of preventing harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, has a certain filtering effect on air entering the lung, and has a very good effect when being worn in an environment polluted by dust and the like when respiratory infectious diseases are prevalent.
In recent years, according to actual conditions, the demand of the mask on the market is continuously expanding, and therefore, the quality requirement of the mask is also continuously improved, so how to ensure the quality of the mask and achieve the protection effect is urgently needed to be solved, and therefore, a preparation method of a disinfection and sterilization type light and thin mask is designed to solve the problems.
Disclosure of Invention
The invention aims to solve the existing problems, and provides a method for preparing a disinfection and sterilization type light and thin mask.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a disinfection and sterilization type light and thin mask comprises the following steps:
s1: the following preparation raw materials were prepared: spun-bonded layer non-woven fabric, silk threads, nose bridge strips, melt-blown cloth, filter paper, bamboo charcoal fiber woven cloth, antistatic cloth, a waterproof and breathable film, a non-woven fabric edge covering material and ear bands;
s2: dividing the spunbonded layer non-woven fabric into an outer spunbonded layer non-woven fabric and an inner spunbonded layer non-woven fabric; sequentially putting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the bamboo charcoal fiber woven fabric, the anti-static fabric, the non-woven fabric edge-wrapping material and the ear band on a workbench of a disinfection room; injecting alcohol solution into the spraying sterilizer, starting the spraying sterilizer, spraying the alcohol solution on the preparation raw material placed on the workbench, and soaking the surface of the preparation raw material; after the soaking work is finished, transferring the preparation raw materials into a dust-free ventilation room for dust-free ventilation work, wherein the dust-free ventilation time is 4-6 h;
s3: transferring the dust-free ventilated preparation raw material into a steam box, starting the steam box to perform steam sterilization work, and keeping the internal temperature at 50-60 ℃ for 2-3 h;
s4, putting the preparation raw materials after steam sterilization into a dust-free ventilation room for dust-free ventilation, wherein the dust-free ventilation time is 2-4h, the temperature in the dust-free ventilation room is adjusted to 20-25 ℃, and the preparation raw materials are drained in the dust-free ventilation room;
s5: sequentially cutting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the filter paper, the bamboo charcoal fiber woven fabric, the antistatic fabric, the waterproof breathable film and the non-woven fabric edge-covering material by a cutting machine to reach a required size, sequentially placing the outer spun-bonded layer non-woven fabric, the bamboo charcoal fiber woven fabric, the antistatic fabric, the melt-blown fabric, the filter paper, the waterproof breathable film and the inner spun-bonded layer non-woven fabric from top to bottom, and then carrying out heat sealing treatment to obtain a composite fabric; then connecting the nose bridge strip with the composite cloth through a non-woven fabric edge covering material, and connecting the ear bands with two sides of the composite cloth through silk threads;
s6: and putting the composite cloth into an ultraviolet disinfection cabinet, and carrying out disinfection and sterilization to obtain the disinfection and sterilization type light and thin mask.
Preferably, in S6, the disinfection and sterilization time is 30-50 min.
Compared with the prior art, the invention has the beneficial effects that:
1. the preparation raw materials are subjected to alcohol solution disinfection, steam disinfection and ultraviolet disinfection, and after the disinfection is finished, the preparation raw materials are subjected to sufficient dust-free ventilation, so that the quality of the preparation raw materials can be determined, and the preparation raw materials meet the actual requirements;
2. through being provided with preparation raw materials such as filter paper, waterproof ventilated membrane, bamboo charcoal fiber weaving cloth, can make the gauze mask of preparation have good ventilative water-proof effects, and then satisfy the user demand.
In conclusion, the mask production equipment is reasonable in design, production work of masks is realized through multiple disinfection and sterilization processes, production quality of the masks can be improved, and the adopted raw materials have good ventilation and waterproof effects and meet actual requirements.
Detailed Description
The following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1
A preparation method of a disinfection and sterilization type light and thin mask comprises the following steps:
s1: the following preparation raw materials were prepared: spun-bonded layer non-woven fabric, silk threads, nose bridge strips, melt-blown cloth, filter paper, bamboo charcoal fiber woven cloth, antistatic cloth, a waterproof and breathable film, a non-woven fabric edge covering material and ear bands;
s2: dividing the spunbonded layer non-woven fabric into an outer spunbonded layer non-woven fabric and an inner spunbonded layer non-woven fabric; sequentially putting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the bamboo charcoal fiber woven fabric, the anti-static fabric, the non-woven fabric edge-wrapping material and the ear band on a workbench of a disinfection room; injecting alcohol solution into the spraying sterilizer, starting the spraying sterilizer, spraying the alcohol solution on the preparation raw material placed on the workbench, and soaking the surface of the preparation raw material; after the soaking work is finished, transferring the preparation raw materials into a dust-free ventilation room for dust-free ventilation work, wherein the dust-free ventilation time is 4 hours;
s3: transferring the dust-free ventilated preparation raw material into a steam box, starting the steam box to perform steam sterilization work, and keeping the internal temperature at 50 ℃ for 2 h;
s4, putting the preparation raw materials after steam sterilization into a dust-free ventilation room for dust-free ventilation, wherein the dust-free ventilation time is 2 hours, the temperature in the dust-free ventilation room is adjusted to 20 ℃, and the preparation raw materials are drained in the dust-free ventilation room;
s5: sequentially cutting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the filter paper, the bamboo charcoal fiber woven fabric, the antistatic fabric, the waterproof breathable film and the non-woven fabric edge-covering material by a cutting machine to reach a required size, sequentially placing the outer spun-bonded layer non-woven fabric, the bamboo charcoal fiber woven fabric, the antistatic fabric, the melt-blown fabric, the filter paper, the waterproof breathable film and the inner spun-bonded layer non-woven fabric from top to bottom, and then carrying out heat sealing treatment to obtain a composite fabric; then connecting the nose bridge strip with the composite cloth through a non-woven fabric edge covering material, and connecting the ear bands with two sides of the composite cloth through silk threads;
s6: and putting the composite cloth into an ultraviolet disinfection cabinet, and carrying out disinfection and sterilization for 30min to obtain the disinfection and sterilization type light and thin mask.
Example 2
A preparation method of a disinfection and sterilization type light and thin mask comprises the following steps:
s1: the following preparation raw materials were prepared: spun-bonded layer non-woven fabric, silk threads, nose bridge strips, melt-blown cloth, filter paper, bamboo charcoal fiber woven cloth, antistatic cloth, a waterproof and breathable film, a non-woven fabric edge covering material and ear bands;
s2: dividing the spunbonded layer non-woven fabric into an outer spunbonded layer non-woven fabric and an inner spunbonded layer non-woven fabric; sequentially putting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the bamboo charcoal fiber woven fabric, the anti-static fabric, the non-woven fabric edge-wrapping material and the ear band on a workbench of a disinfection room; injecting alcohol solution into the spraying sterilizer, starting the spraying sterilizer, spraying the alcohol solution on the preparation raw material placed on the workbench, and soaking the surface of the preparation raw material; after the soaking work is finished, transferring the preparation raw materials into a dust-free ventilation room for dust-free ventilation work, wherein the dust-free ventilation time is 5 hours;
s3: transferring the dust-free ventilated preparation raw material into a steam box, starting the steam box to perform steam sterilization work, and keeping the internal temperature at 55 ℃ for 2.5 hours;
s4, putting the preparation raw materials after steam sterilization into a dust-free ventilation room for dust-free ventilation, wherein the dust-free ventilation time is 3h, the temperature in the dust-free ventilation room is adjusted to 22 ℃, and the preparation raw materials are drained in the dust-free ventilation room;
s5: sequentially cutting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the filter paper, the bamboo charcoal fiber woven fabric, the antistatic fabric, the waterproof breathable film and the non-woven fabric edge-covering material by a cutting machine to reach a required size, sequentially placing the outer spun-bonded layer non-woven fabric, the bamboo charcoal fiber woven fabric, the antistatic fabric, the melt-blown fabric, the filter paper, the waterproof breathable film and the inner spun-bonded layer non-woven fabric from top to bottom, and then carrying out heat sealing treatment to obtain a composite fabric; then connecting the nose bridge strip with the composite cloth through a non-woven fabric edge covering material, and connecting the ear bands with two sides of the composite cloth through silk threads;
s6: and putting the composite cloth into an ultraviolet disinfection cabinet, and carrying out disinfection and sterilization for 40min to obtain the disinfection and sterilization type light and thin mask.
Example 3
A preparation method of a disinfection and sterilization type light and thin mask comprises the following steps:
s1: the following preparation raw materials were prepared: spun-bonded layer non-woven fabric, silk threads, nose bridge strips, melt-blown cloth, filter paper, bamboo charcoal fiber woven cloth, antistatic cloth, a waterproof and breathable film, a non-woven fabric edge covering material and ear bands;
s2: dividing the spunbonded layer non-woven fabric into an outer spunbonded layer non-woven fabric and an inner spunbonded layer non-woven fabric; sequentially putting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the bamboo charcoal fiber woven fabric, the anti-static fabric, the non-woven fabric edge-wrapping material and the ear band on a workbench of a disinfection room; injecting alcohol solution into the spraying sterilizer, starting the spraying sterilizer, spraying the alcohol solution on the preparation raw material placed on the workbench, and soaking the surface of the preparation raw material; after the soaking work is finished, transferring the preparation raw materials into a dust-free ventilation room for dust-free ventilation work, wherein the dust-free ventilation time is 6 hours;
s3: transferring the dust-free ventilated preparation raw material into a steam box, starting the steam box to perform steam sterilization work, and keeping the internal temperature at 60 ℃ for 3 h;
s4, putting the preparation raw materials after steam sterilization into a dust-free ventilation room for dust-free ventilation, wherein the dust-free ventilation time is 4h, the temperature in the dust-free ventilation room is adjusted to 25 ℃, and the preparation raw materials are drained in the dust-free ventilation room;
s5: sequentially cutting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the filter paper, the bamboo charcoal fiber woven fabric, the antistatic fabric, the waterproof breathable film and the non-woven fabric edge-covering material by a cutting machine to reach a required size, sequentially placing the outer spun-bonded layer non-woven fabric, the bamboo charcoal fiber woven fabric, the antistatic fabric, the melt-blown fabric, the filter paper, the waterproof breathable film and the inner spun-bonded layer non-woven fabric from top to bottom, and then carrying out heat sealing treatment to obtain a composite fabric; then connecting the nose bridge strip with the composite cloth through a non-woven fabric edge covering material, and connecting the ear bands with two sides of the composite cloth through silk threads;
s6: and putting the composite cloth into an ultraviolet disinfection cabinet, and carrying out disinfection and sterilization for 50min to obtain the disinfection and sterilization type light and thin mask.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A preparation method of a disinfection and sterilization type light and thin mask is characterized by comprising the following steps:
s1: the following preparation raw materials were prepared: spun-bonded layer non-woven fabric, silk threads, nose bridge strips, melt-blown cloth, filter paper, bamboo charcoal fiber woven cloth, antistatic cloth, a waterproof and breathable film, a non-woven fabric edge covering material and ear bands;
s2: dividing the spunbonded layer non-woven fabric into an outer spunbonded layer non-woven fabric and an inner spunbonded layer non-woven fabric; sequentially putting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the bamboo charcoal fiber woven fabric, the anti-static fabric, the non-woven fabric edge-wrapping material and the ear band on a workbench of a disinfection room; injecting alcohol solution into the spraying sterilizer, starting the spraying sterilizer, spraying the alcohol solution on the preparation raw material placed on the workbench, and soaking the surface of the preparation raw material; after the soaking work is finished, transferring the preparation raw materials into a dust-free ventilation room for dust-free ventilation work, wherein the dust-free ventilation time is 4-6 h;
s3: transferring the dust-free ventilated preparation raw material into a steam box, starting the steam box to perform steam sterilization work, and keeping the internal temperature at 50-60 ℃ for 2-3 h;
s4, putting the preparation raw materials after steam sterilization into a dust-free ventilation room for dust-free ventilation, wherein the dust-free ventilation time is 2-4h, the temperature in the dust-free ventilation room is adjusted to 20-25 ℃, and the preparation raw materials are drained in the dust-free ventilation room;
s5: sequentially cutting the outer spun-bonded layer non-woven fabric, the inner spun-bonded layer non-woven fabric, the melt-blown fabric, the filter paper, the bamboo charcoal fiber woven fabric, the antistatic fabric, the waterproof breathable film and the non-woven fabric edge-covering material by a cutting machine to reach a required size, sequentially placing the outer spun-bonded layer non-woven fabric, the bamboo charcoal fiber woven fabric, the antistatic fabric, the melt-blown fabric, the filter paper, the waterproof breathable film and the inner spun-bonded layer non-woven fabric from top to bottom, and then carrying out heat sealing treatment to obtain a composite fabric; then connecting the nose bridge strip with the composite cloth through a non-woven fabric edge covering material, and connecting the ear bands with two sides of the composite cloth through silk threads;
s6: and putting the composite cloth into an ultraviolet disinfection cabinet, and carrying out disinfection and sterilization to obtain the disinfection and sterilization type light and thin mask.
2. The method of claim 1, wherein in step S6, the disinfecting time is 30-50 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011025174.5A CN112089134A (en) | 2020-09-25 | 2020-09-25 | Preparation method of disinfection and sterilization type light and thin mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011025174.5A CN112089134A (en) | 2020-09-25 | 2020-09-25 | Preparation method of disinfection and sterilization type light and thin mask |
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| Publication Number | Publication Date |
|---|---|
| CN112089134A true CN112089134A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011025174.5A Pending CN112089134A (en) | 2020-09-25 | 2020-09-25 | Preparation method of disinfection and sterilization type light and thin mask |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009130799A1 (en) * | 2008-04-24 | 2009-10-29 | Miyao Shunsuke | Multilayered mask |
| CN204763518U (en) * | 2015-05-22 | 2015-11-18 | 天津全民科技有限公司 | Prevent dust mask of static |
| CN108354243A (en) * | 2018-02-08 | 2018-08-03 | 海宁爱康医疗科技有限公司 | A kind of disposable breathing mask production method |
| CN207754587U (en) * | 2017-12-11 | 2018-08-24 | 江苏英普科电子材料有限公司 | A kind of new no-dust antistatic mask |
| CN210257509U (en) * | 2019-01-22 | 2020-04-07 | 福建小心心生活用品有限公司 | Hydrophilic non-woven fabrics of recycling of parcel |
| CN111513382A (en) * | 2020-04-17 | 2020-08-11 | 太和县柯润戈服装有限公司 | Method for preparing repeatable-use mask by using antibacterial melt-blown non-woven fabric |
| CN111686265A (en) * | 2020-06-15 | 2020-09-22 | 柳州市妇幼保健院 | Gauze mask degassing unit |
-
2020
- 2020-09-25 CN CN202011025174.5A patent/CN112089134A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009130799A1 (en) * | 2008-04-24 | 2009-10-29 | Miyao Shunsuke | Multilayered mask |
| CN204763518U (en) * | 2015-05-22 | 2015-11-18 | 天津全民科技有限公司 | Prevent dust mask of static |
| CN207754587U (en) * | 2017-12-11 | 2018-08-24 | 江苏英普科电子材料有限公司 | A kind of new no-dust antistatic mask |
| CN108354243A (en) * | 2018-02-08 | 2018-08-03 | 海宁爱康医疗科技有限公司 | A kind of disposable breathing mask production method |
| CN210257509U (en) * | 2019-01-22 | 2020-04-07 | 福建小心心生活用品有限公司 | Hydrophilic non-woven fabrics of recycling of parcel |
| CN111513382A (en) * | 2020-04-17 | 2020-08-11 | 太和县柯润戈服装有限公司 | Method for preparing repeatable-use mask by using antibacterial melt-blown non-woven fabric |
| CN111686265A (en) * | 2020-06-15 | 2020-09-22 | 柳州市妇幼保健院 | Gauze mask degassing unit |
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Application publication date: 20201218 |