CN212920715U - Repeatedly usable's PTFE protective facial mask surface fabric and protective facial mask - Google Patents
Repeatedly usable's PTFE protective facial mask surface fabric and protective facial mask Download PDFInfo
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- CN212920715U CN212920715U CN202020941239.XU CN202020941239U CN212920715U CN 212920715 U CN212920715 U CN 212920715U CN 202020941239 U CN202020941239 U CN 202020941239U CN 212920715 U CN212920715 U CN 212920715U
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Abstract
The application provides a reusable PTFE protective mask fabric and a protective mask, wherein the PTFE protective mask fabric sequentially comprises a terylene fabric layer, a PTFE microporous membrane layer and a lining layer which are compounded; the pore diameter of the PTFE microporous membrane layer is less than 0.5 micrometer, and the thickness of the PTFE microporous membrane layer is not more than 6 micrometers. Wherein, the lining layer is close to one side of the face of the user. This application regards as the filtration sandwich layer of gauze mask surface fabric with the Polytetrafluoroethylene (PTFE) microporous membrane of specific aperture, thickness, cooperation dacron face fabric layer, not only can play the efficiency of harmful substance such as antivirus, and the stable in structure of this rete itself is higher moreover, and disinfection such as high temperature is cooked or alcohol soaking back filtration efficiency is higher, can also used repeatedly for protective mask's durability has greatly promoted. Furthermore, the protective mask fabric can be printed and dyed through the fabric, so that fashionable and personalized patterns are formed, and the decorative performance is good.
Description
Technical Field
The application belongs to the technical field of mask fabrics, and particularly relates to a PTFE protective mask fabric capable of being repeatedly used and a protective mask.
Background
The mask is usually worn on the mouth and nose of a user and is a tool for filtering air to block harmful gas, spray and other entrance and exit and nose parts, and the performance mainly considered when the mask is used comprises filtering performance, fitting performance, comfort and the like. The earliest masks were mainly made of textile fabrics such as gauze or paper, for example, some fashionable personalized masks usually adopt polyester fabrics. The masks on the market are generally classified into rectangular masks or cup-shaped masks according to the shape.
Because the mask has a certain filtering function on air entering the lung, when respiratory infectious diseases prevail or work in an environment polluted by dust and the like, the mask has a very good protective effect on virus, dust and the like when being worn. The common gauze mask that possesses the antivirus function in the market at present includes: medical masks and N95 civil protective masks. The filter material of these protective masks is mainly polypropylene (PP) melt-blown cloth in nonwoven fabric, and has at least two-layer structure.
However, the filtration effect of the meltblown fabric is significantly reduced with time, and thus the conventional protective mask cannot be reused for a long period of time.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application provides a repeatedly usable's PTFE protective facial mask surface fabric and protective facial mask, the protective facial mask surface fabric that the present application provided has antivirus function and reusability.
The application provides a repeatedly-usable PTFE protective mask fabric which sequentially comprises a terylene fabric layer, a PTFE microporous membrane layer and a lining fabric layer which are compounded with each other; the pore diameter of the PTFE microporous membrane layer is less than 0.5 micrometer, and the thickness of the PTFE microporous membrane layer is not more than 6 micrometers.
Preferably, the pore diameter of the PTFE microporous membrane layer is 0.1-0.5 micrometer, and the thickness is 3-5 micrometers.
Preferably, the pore diameter of the PTFE microporous membrane layer is 0.3-0.4 micrometer, and the thickness is 3-4 micrometers.
Preferably, the lining fabric layer is a PP non-woven fabric layer or a terylene lining fabric layer.
Preferably, the structure of the PTFE protective mask shell fabric is as follows: sequentially compounding a terylene surface cloth layer, a PTFE microporous membrane layer and a terylene lining cloth layer; the yarn fineness of the polyester inner cloth layer is 10D-30D.
Preferably, the structure of the PTFE protective mask shell fabric is as follows: sequentially compounded with a terylene face fabric layer, a first PP non-woven fabric layer, a PTFE microporous membrane layer and a second PP non-woven fabric layer.
Preferably, the polyester fabric layer is of a plain woven structure, and the yarn fineness is 15D-20D.
Preferably, the polyester fabric layer is provided with a printed pattern.
The application provides a protective facial mask, including gauze mask main part and the hangers part that is connected, the gauze mask main part is by the foretell PTFE protective facial mask surface fabric make.
Preferably, the mask body is made of the PTFE protective mask fabric through ultrasonic cutting and local hot melting of the edge of the fabric.
Compared with the prior art, the protective mask shell fabric major structure that this application provided does in proper order: a terylene surface fabric layer, a PTFE microporous membrane layer and a lining layer; wherein, the inner cloth layer is close to one side of the face of the user; the pore diameter of the PTFE microporous membrane layer is less than 0.5 micrometer, and the thickness of the PTFE microporous membrane layer is not more than 6 micrometers. This application regards as the filtration sandwich layer of gauze mask surface fabric with the Polytetrafluoroethylene (PTFE) microporous membrane of specific aperture, thickness, cooperation dacron cloth layer etc. not only can play the efficiency of harmful substance such as anti-virus, and the stable in structure of this rete itself is higher moreover, and disinfection such as high temperature is cooked or alcohol soaking back filtration efficiency is higher, can also used repeatedly for protective mask's durability has greatly promoted.
Furthermore, the protective mask fabric can be printed and dyed through the fabric, so that fashionable and personalized patterns are formed, and the decorative performance is good.
Further, the protective mask shell fabric can be made into a mask main body through ultrasonic cutting and local hot melting of the edge of the fabric, so that the obtained mask is more attached to the face of a user, and the protective function is better.
Drawings
FIG. 1 is a schematic view of a face fabric construction for a protective mask in accordance with certain embodiments of the present disclosure;
fig. 2 is a schematic view of a protective mask according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The application provides a repeatedly-usable PTFE protective mask fabric which sequentially comprises a terylene fabric layer, a PTFE microporous membrane layer and a lining layer which are compounded with each other; the pore diameter of the PTFE microporous membrane layer is less than 0.5 micrometer, and the thickness of the PTFE microporous membrane layer is not more than 6 micrometers.
The protective mask fabric has the function of preventing viruses and reusability, and can also have fashionable and personalized patterns.
The main structure of the protective mask fabric provided by the embodiment of the application is a sandwich structure of a lining cloth layer/a PTFE microporous membrane layer/a polyester fabric layer; wherein, the terylene face fabric layer is a thin fabric far away from the face of a user and is woven by terylene yarns. Polyester is an important variety in chemical fibers, and the basic chemical composition is polyethylene terephthalate (PET for short); polyester is the trade name. The polyester yarn or fabric has the characteristics of firmness, durability, difficult deformation, heat resistance, easy washing, quick drying and the like; the polyester fabric layer is formed by weaving polyester yarns, and is usually woven fabric. The application is right the size specification, the organizational structure of dacron face fabric layer etc. do not have special restriction, can adopt plain weave and/or twill structure.
In a preferred embodiment of the present application, the polyester fabric layer is a plain woven structure; the fineness of the yarn can be 15D-20D, and the yarn is thin and can meet the performances of air permeability, strength and the like. Specifically, the polyester fabric layer is a 15D plain woven fabric, and the gram weight is 14g/m2. Denier (D) is the yarn fineness fixed-length unit, and the mass in grams of 9000 meters of a filament at a public set moisture regain is called denier. In addition, the polyester fabric layer can also have fashionable and personalized printing and dyeing patterns, so that the decorative effect is better; it may be a normal solid-color fabric layer, and the application is not limited in any way.
The application filter core layer in the protective mask fabric is a PTFE microporous membrane layer which is a single-layer film made of PTFE and provided with micropores.
Polytetrafluoroethylene (PTFE for short) has excellent comprehensive properties such as chemical stability, high and low temperature resistance, non-adhesiveness, lubricity, electrical insulation, aging resistance, radiation resistance and the like, and is known as the king of plastics. The polytetrafluoroethylene powder can form a micron-sized microporous film through the processing steps of seasoning, extruding, stretching and the like; the connection part of the fiber bundle is formed by entanglement of a plurality of microfibers, the three-dimensional structure of the micropores is a complex reticular channel, and the sizes of the micropores on the front surface, the back surface, the longitudinal surface and the transverse surface of the membrane are different. Every square inch of the surface of the polytetrafluoroethylene microporous membrane can be provided with more than 90 hundred million micropores, the diameter of each micropore is 0.1-2.0 microns, the micropore is far smaller than water drops by more than 10000 times and larger than water vapor molecules by more than 700 times, so that water vapor molecules can easily pass through, and water drops, particles and the like cannot penetrate through. The pore size of the PTFE membrane can be accurately controlled, and the pore diameters and material thicknesses of different sizes can show different material parameters such as moisture permeability, hydrostatic pressure, air permeability, filtering efficiency and the like.
In the present application, the PTFE microporous membrane layer has a pore size of less than 0.5 microns and a thickness of no more than 6 microns (inclusive); especially, when the pore diameter is controlled to be 0.1 mu m, the anti-virus effect can be well achieved. This application uses PTFE microporous membrane as gauze mask surface fabric filter core, because its filterable mode belongs to surface filtration rather than electrostatic absorption, and the stable in structure of membrane itself is added, consequently after high temperature is cooked or alcohol soaking, also can used repeatedly.
In the embodiment of the present application, the pore size and the thickness of the PTFE microporous membrane may be specifically selected according to requirements, and generally, the larger the pore size is, the thinner and more permeable the thickness is, the smaller the pore size is, the thicker the thickness is, and the higher the filtration efficiency is; but the filtration efficiency does not fluctuate much (from 99% to 95%, the performance criteria of N95 are still met). Regarding the pore diameter, the pore diameter of the PTFE microporous membrane layer in the embodiment of the present application ranges from 0.1 μm to 0.5 μm, and preferably ranges from 0.3 μm to 0.4 μm. Regarding the thickness, the thickness of the PTFE microporous membrane layer in the embodiment of the present application ranges from 3 μm to 6 μm, and preferably ranges from 3 μm to 4 μm. Preferably, the pore diameter of the PTFE microporous membrane layer is 0.3 to 0.4 micrometers, the thickness is 3 to 4 micrometers (preferably 3 μm), and the effects in terms of filterability, air permeability and the like are better.
The PTFE protective mask surface fabric of this application embodiment including lining cloth layer, lining cloth layer is for being close to user's face one side, mainly plays the effect that supports the filter core. The material, structure and the like of the backing fabric layer are not particularly limited, and the backing fabric layer can be a PP non-woven fabric layer commonly used in the field and can also be a polyester backing fabric layer and the like.
Referring to fig. 1, fig. 1Is a structural schematic diagram of the protective mask fabric in some embodiments of the present application. The structure of the PTFE protective mask fabric is as follows: sequentially compounding a terylene surface cloth layer 1, a PTFE microporous membrane layer 2 and a terylene lining cloth layer 3. The structure is a (solid shell) sandwich structure, wherein the terylene face fabric layer 1 is preferably in 15D plain weave, and the gram weight can be 14g/m2Can meet the requirements of air permeability and the like; the relevant structural parameters and the like of the PTFE microporous membrane layer 2 are as described above. The yarn fineness of the terylene lining layer 3 can be 10D-30D, and is preferably 20D. Specifically, the polyester lining layer is 20D gold edge knitted fabric, and the gram weight can be 27g/m2(ii) a The air permeability, cost economy and the like of the 20D polyester inner cloth layer are better in comprehensive, the cost of 10D is higher, and the air permeability of 30D is lower. The gold-edged knitted fabric (the 'true shell' mentioned above) belongs to a knitted fabric structure, and no special requirements are required in the application.
In other embodiments of the present application, the PTFE protective mask shell fabric has the structure: sequentially compounded with a terylene face fabric layer, a first PP non-woven fabric layer, a PTFE microporous membrane layer and a second PP non-woven fabric layer. The structure is a three-layer non-woven fabric filter element directly compounded by a polyester fabric layer, wherein the polyester fabric layer is preferably in a 15D plain weave, and the gram weight can be 14g/m2Can meet the requirements of air permeability and the like. The first PP non-woven fabric layer and the second PP non-woven fabric layer are mainly used for distinguishing the arrangement positions of the non-woven fabric layers, the two non-woven fabric layers are both made of polypropylene (PP), are usually of a melt-blown fabric type, and have the gram weight of 17g/m2。
In the present application, the term "composite" includes conventional techniques for making mask shell fabrics in the art, such as aqueous gel lamination.
The application also provides a protective mask, including mask main part and the hangers part that is connected, the mask main part is by the foretell PTFE protective mask surface fabric make. The whole shape, the ear hanging part and the like of the protective mask are not particularly limited, and the protective mask is conventional in the field, such as the protective mask shown in fig. 2.
This application protective facial mask adopts the foretell PTFE protective facial mask surface fabric, harmful substance such as not only can the anti-virus, but also repeatedly usable, the durability is good. Wherein, the gauze mask main part is preferred by PTFE protective mask surface fabric pass through ultrasonic cutting to and the local hot melt in face cloth edge is made, the gauze mask that obtains like this is laminated with facial more, and protection function is better.
Example 1
Sequentially stacking the terylene face cloth, the PTFE microporous membrane and the terylene lining cloth, and obtaining the PTFE protective mask fabric through aqueous adhesive compounding, ultrasonic cutting and local hot melting of the edge of the face cloth.
Wherein the terylene face fabric layer is 15D plain weave tatting pure color fabric with the gram weight of 14g/m2. The thickness of the PTFE microporous membrane layer is 3 mu m, and the aperture is 0.3-0.4 micron. The terylene lining layer is knitted by a 20D gold edge and has the gram weight of 27g/m2。
Example 2
Sequentially stacking the terylene face fabric, the PP melt-blown fabric, the PTFE microporous membrane and the PP melt-blown fabric, and obtaining the PTFE protective mask fabric through ultrasonic cutting and local hot melting of the edge of the face fabric.
Wherein the terylene face fabric layer is 15D plain weave with a gram weight of 14g/m2. The thickness of the PTFE microporous membrane layer is 3 mu m, and the aperture is 0.3-0.4 micron. The gram weight of the PP melt-blown fabric is 17g/m2。
According to the technical requirements of GB 19083-. Wherein the average filtration efficiency of the face fabric for protective mask obtained in example 1 was 98.4%, and the airflow resistance was 18mmH2And O, all meet the standard requirements. Moreover, the mask fabric can be directly washed by water, and can also be washed by high-temperature water.
In addition, this application has tested the reusability of above-mentioned PTFE microporous membrane as the gauze mask surface fabric of filter media. The PTFE filter material is soaked in medical alcohol for 15 minutes for 0-5 times, and the filtering efficiency is basically unchanged and is 99-100 percent; and drying by high-temperature evaporation for 0.5h each time for 0-20 times, wherein the filtration efficiency is basically unchanged and is over 98 percent. Wherein, the filtration efficiency can be kept at 98.29 percent by dry steaming for 10 times at high temperature and half an hour each time. Soaking in ethanol for 10 times, each time for 15 min, and the filtration efficiency can be maintained at 98.75%. The prior non-woven fabric filter material is seriously reduced in filtering efficiency after being treated, and is difficult to apply. Therefore, the PTFE filter material can be disinfected by alcohol and does not influence the filtration efficiency in the application, and can be repeatedly steamed at high temperature without influencing the filtration efficiency.
Consequently, this application uses the Polytetrafluoroethylene (PTFE) microporous membrane of specific aperture, thickness as the filter core layer of gauze mask surface fabric, cooperation dacron face fabric layer etc. both possess the function of antivirus to compare in current non-woven fabrics gauze mask, this application protective facial mask can used repeatedly, has greatly promoted the durability.
The foregoing is only a preferred embodiment of the present application, and it should be noted that various modifications of the embodiments can be implemented by those skilled in the art without departing from the technical principle of the present application, and these modifications should be considered as the scope of the present application.
Claims (5)
1. The utility model provides a repeatedly usable's PTFE protective facial mask surface fabric which characterized in that, the structure of PTFE protective facial mask surface fabric is: sequentially compounding a terylene surface cloth layer, a PTFE microporous membrane layer and a terylene lining cloth layer; the yarn fineness of the polyester inner cloth layer is 10D-30D; the aperture of the PTFE microporous membrane layer is 0.3-0.4 micrometer, and the thickness of the PTFE microporous membrane layer is 3-4 micrometers;
or, the structure of the PTFE protective mask fabric is as follows: sequentially compounding a terylene face fabric layer, a first PP non-woven fabric layer, a PTFE microporous membrane layer and a second PP non-woven fabric layer; the pore diameter of the PTFE microporous membrane layer is 0.3-0.4 micrometer, and the thickness is 3-4 micrometers.
2. The PTFE protective mask fabric according to claim 1, wherein the polyester fabric layer is of a plain woven structure, and the yarn fineness is 15D-20D.
3. The PTFE protective mask shell fabric of claim 1, wherein the polyester fabric layer has a printed pattern.
4. A protective mask comprising a mask body and a plurality of ear hanging members connected to the mask body, wherein the mask body is made of the PTFE protective mask fabric according to any one of claims 1 to 3.
5. The protective mask of claim 4 wherein said mask body is made from PTFE protective mask fabric by ultrasonic cutting and local heat staking of the edges of the fabric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020941239.XU CN212920715U (en) | 2020-05-28 | 2020-05-28 | Repeatedly usable's PTFE protective facial mask surface fabric and protective facial mask |
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| CN202020941239.XU CN212920715U (en) | 2020-05-28 | 2020-05-28 | Repeatedly usable's PTFE protective facial mask surface fabric and protective facial mask |
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| CN212920715U true CN212920715U (en) | 2021-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114391686A (en) * | 2022-01-18 | 2022-04-26 | 杨劲松 | Multiplexing formula nanometer ventilative gauze mask |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114391686A (en) * | 2022-01-18 | 2022-04-26 | 杨劲松 | Multiplexing formula nanometer ventilative gauze mask |
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