In daily life, mask is a product which extensive used by people for preventing haze, dust, bacteria and virus from entering respiratory tract. It’s capable of effectively prevent and control some diseases of respiratory system and airborne diseases which caused by haze, dust, bacteria and virus. So people quite attached importance to the comfort, dust prevention, antibiosis, PM2.5 filtration, anti-fog and haze effect of the mask. With the incessant development of electrospinning nanotechnology, electrospinning equipment is extensively applied to the manufacturing of mask. Below is the brief introduction of many sorts of dust masks which invented and manufactured in electrospinning nanotechnology, as well as nanofiber filtration membrane for mask.
Patent Name
A kind of mask and its main body
Applicant
Shandong Junfu Nonwoven Cloth Co., LTD.
Patent No.
CN201520320596.3
Summary
This application publicized a kind of mask and its main body. This mask’s main body included superimposed the first filter layer, electrospinning nanofiber layer and the second filter layer. The filter nanomaterials of this electrospinning nanofiber layer made the mask have good PM2.5 filtration performance. Meanwhile, the electrospinning nanofiber loop folding for the one direction extended wave, increased the whole material’s superficial area. Then with same flow, its expiratory resistance is declined, made the mask’s main body have good breathability.
Patent Name
Antibiotic dust mask which based on pure cotton gauze and its processing method
Applicant
TEDA. Gold Garment Packaging Products Co., LTD.
Patent No.
CN201310321479.4
Summary
This invention is an antibiotic dust mask which based on pure cotton gauze and its processing method. The main body of the mask is made up from pure cotton gauze, PLA electrospinning nanofiber membrane, ramie acupuncture non-woven fabric and PLA meltblown from internal to external stacked and bonded one by one by ultrasonic. The pure cotton gauze has one to two layers. The processing method included the manufacturing of the PLA electrospinning nanofiber membrane whose weight is 2.5g/m2 and the ramie acupuncture non-woven fabric. The layer structure mask of this invention is capable of guiding the moisture from internal to external uniaxially, keeping dry and comfortable in the mask as well as preventing bacteria breeding. This invention has prominent advantages such as antibiosis, effective dust filtration, low manufacture cost, good breathability and capable of thorough biodegradation.
Patent Name
An anti-fog and haze mask which base on nano structure, with both function of filtering and adsorbing.
Applicant
The First Affiliated Hospital of Xi 'an Jiaotong University Medical School.
Patent No.
CN201410490840.0
Summary
This invention is an antibiotic dust mask which based on pure cotton gauze and its processing method. The main body of the mask is made from pure cotton gauze, PLA electrospinning nanofiber membrane, ramie acupuncture non-woven fabric and PLA meltblown from internal to external stacked and bonded one by one by ultrasonic. The pure cotton gauze has one to two layers. The processing method included the manufacturing of the PLA electrospinning nanofiber membrane whose weight is 2.5g/m2 and the ramie acupuncture non-woven fabric. The layer structure mask of this invention is capable of guiding the moisture from internal to external uniaxially, keeping dry and comfortable in the mask as well as preventing bacteria breeding. This invention has prominent advantages such as antibiosis, effective dust filtration, low manufacture cost, good breathability and capable of thorough biodegradation.
Patent Name
A kind of antibiotic filter mask made from composite material
Applicant
Anhui Engineering University
Patent No.
CN201620144103.X
Summary
This utility model publicized a kind of antibiotic filter mask which made from composite material. This composite material mask is made from the first composite fiber layer, antibiotic filter layer and the second composite fiber layer stacked and bonded one by one from internal to external by ultrasonic. The antibiotic filter layer is PAN electrospinning nanofiber membrane. The antibiotic filter composite material mask of this utility model has good filtration and antibiosis effect, as well as good breathability, non-toxic and pollution-free traits.
Patent Name
High efficiency and low resistance composite fiber PM2.5 filter membrane and its electrospinning manufacture method
Applicant
Fujian Beisida Environmental Protection Investment Co., LTD. & The Institute of Urban Environment,Chinese Academy of Sciences
Patent No.
CN201410108986.4
Summary
This invention publicized a kind of high efficiency and low resistance composite fiber PM2.5 filter membrane and its electrospinning manufacture method, belongs to the new material technology area. This composite fiber filter membrane is manufactured in a simple, energy-saving and easy to quantify electrospinning method. The composite fiber membrane has many advantages, such as high specific surface area, high porosity and controllable fiber diameter. This composite fiber filter membrane’s air PM2.5 filter efficiency can reach 95%~99.97%, resistance pressure drop is 20~300Pa. This composite fiber filter membrane has many advantages, such as simple manufacture method, low energy consumption, high filter efficiency and low resistance pressure drop. It’s an ideal air filtration and purification materials, is capable of applying to manufacture masks like N95, N99, N100 and equipment like air cleaner.
Patent Name
A kind of biosafety mask filterelement
Applicant
Yantai Sensen Environmental Protection Technology Co., LTD.
Patent No.
CN201520637122.1
Summary
This utility model is related to a kind of biosafety mask filterelement which composites of four layers. The four layers from internal to external respectively are clean cloth layer, bioshield, supporting layer and high-efficiency filter layer. The beneficial effects of this utility model are: 1)The supporting layer material is starched , big hole diameter, low breath resistance, is capable of insuring the effective breath area, effectively protecting the internal layer; 2) The high-efficiency filter layer is capable of adding antibacterial materials in the spinning solution, such as quaternary ammonium salt, antibiotic etc., then the filter layer is antibacterial; 3) The bioshield is thin, low breath resistance, is capable of effectively filtering the fiber chippings of the high efficiency filter layer; 4) The fiber chippings of the bioshield enter human body through the respiratory tract, can be degraded and absorbed by human body at a certain time, then avoid the bronchitis, pneumonia, pulmonary edema and other health problems which caused by the mask fiber; 5) The clean cloth layer is soft with good tactility, not easy to get allergy, and won’t broken in the friction.
Patent Name
A kind of dual valve mask
Applicant
Zhongke Beisida Environmental Technology Co. ,LTD., Xiamen
Patent No.
CN201610379933.5
Summary
A kind of dual valve mask, included main shell body, one-way inlet valve, one-way exhaust valve, air filter material, protective fitting and leakproof ring. The main body shell arched to the opposite direction of the air admission, formed a half shell construction. One side of the main shell body open, formed a wearing open. The leakproof ring winded round the wearing open. There’s an air inlet on the main shell body. Along the direction of the inlet, successively arranged protective fitting, air filter material and one-way inlet valve. The one-way exhaust valve is inside the main shell body. When inhaling, the air enters from the one-way inlet valve. When expiration, the air exhausts from the one-way exhaust valve. That avoided the breath moisture absorbed by the filter element which would decline the filter efficiency and increase the resistance. This invention used air filter material, especially used the nanofiber membrane which manufactured by electrospinning technology, had ultra small diameter, compact fiber and high filter efficiency. The mask has good filter effect, thin and soft, long service life, comfortable to wear.