CN213992531U - Protective mask comfortable to wear, breathable and reusable - Google Patents
Protective mask comfortable to wear, breathable and reusable Download PDFInfo
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- CN213992531U CN213992531U CN202021498039.8U CN202021498039U CN213992531U CN 213992531 U CN213992531 U CN 213992531U CN 202021498039 U CN202021498039 U CN 202021498039U CN 213992531 U CN213992531 U CN 213992531U
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Abstract
The utility model discloses a protective mask which is comfortable to wear, breathable and reusable, comprising a mask main body, wherein two sides of the mask main body are provided with hanging wearing devices, the mask main body comprises a hydrophobic and antibacterial outer knitting fabric layer, a middle function filter layer and an inner skin-sticking knitting fabric layer with cool feeling and quickness, and the outer knitting fabric layer, the middle function filter layer and the inner skin-sticking knitting fabric layer are connected in a laminating way; the center line of the left side and the right side of the mask body is sequentially provided with three sections of lines L1, L2 and L3 from top to bottom, wherein L1 corresponds to the nose length covering area, L2 corresponds to the nose mouth covering area, and L3 corresponds to the chin covering area, an included angle theta 2 is formed between the extension line of the nose length covering area and the extension line of the nose mouth covering area, and an included angle theta 3 is formed between the extension line of the nose mouth covering area and the extension line of the chin covering area. The utility model discloses the filter effect is good, wears comfortablely, utilizes knitted fabric, can carry out and still satisfy the protection requirement after wasing many times.
Description
Technical Field
The utility model relates to a mask, in particular to a protective mask which is comfortable and breathable to wear and can be repeatedly used by washing.
Background
The fact that the supply and demand of medical protective products are contradictory is disclosed by some virus epidemic prevention and treatment. Particularly, as northern hemisphere gradually enters summer, the temperature gradually rises, although people understand that wearing the mask is a key for self-protection and winning epidemic prevention, control and fight prevention, in summer, under the condition of high temperature, people often unconsciously reduce the time for wearing the mask due to feeling of mugginess, unsmooth breathing and the like caused by wearing the mask.
According to the current research experience, the size of microparticles in the air is about 2.5 microns, which is the commonly known PM2.5 particle, while the size of the new coronavirus is about 60 to 150 nm, and the transmission of the new coronavirus is mainly in the form of aerosol. Viruses exist in small drops of saliva that are projected from the mouth when people speak and sneeze, and they reach the other person's face or float in the air as they are being spoken or sneezed.
The current focus of attention on masks is mainly on the development of novel filter materials, wherein non-woven fabrics and activated carbon fibers are still hot spots for research. Electret technology, nano-materials, negative ion materials, graphene materials and the like are also widely applied to the development of novel filter materials. Because the non-woven fabric mask has the defect of disposable use, the impact of the products on the environment and the pressure of resource demand are fully exposed in the epidemic prevention process.
Modern masks are typically constructed of "3 or more than 3" layers of nonwoven fabric. The inner layer, the filtering layer and the outer layer are divided from inside to outside. The mask can be classified into different types such as cotton gauze mask, non-woven fabric mask, paper mask, polypropylene high-efficiency filtering material, etc. according to different manufacturing materials. The main functions of the cotton gauze mask are cold prevention and warm keeping, cold air is prevented from directly stimulating respiratory tracts, the cotton gauze mask has the outstanding characteristics of good air permeability, a middle interlayer filter disc also has a certain filtering effect, but the cotton gauze mask has very poor dustproof and antibacterial effects and almost no antivirus effect, and the cotton gauze mask hardly plays a role in protection in the high-incidence period of pathogenic microorganism infectious diseases or in haze weather. The filtration performance of the nonwoven fabric mask is determined by its raw material structure, composition and performance. At present, the raw materials mainly comprise polyester (PET, PBT), Polyamide (PA), polyvinyl chloride (PVC), Polyacrylonitrile (PAN), spandex (PU), polypropylene (PP) and the like. The polypropylene melt-blown non-woven fabric has the advantages of low price, stable physical and chemical properties, high porosity, good air permeability and filtration resistance, environmental protection and no toxicity, the filtration performance of the mask prepared from the polypropylene melt-blown non-woven fabric is far superior to that of other materials, the mask can effectively block droplets and tiny dust, the air resistance is small, and the polypropylene melt-blown non-woven fabric becomes a mainstream protective mask product at present. However, in the epidemic process, the great use of the disposable mask causes great pressure on the environment, consumes a great amount of production raw materials, and brings great pressure and great impact on the environment for the treatment of the consumed mask products.
Disclosure of Invention
The invention aims to provide a protective mask which is comfortable to wear, breathable and reusable.
In order to solve the technical problems, the invention adopts the following technical scheme:
a protective mask which is comfortable to wear, breathable and reusable comprises a mask main body, wherein hanging wearing devices are arranged on two sides of the mask main body, the mask main body comprises a hydrophobic and antibacterial outer knitted fabric layer, a middle function filter layer and an inner skin-attached knitted fabric layer with cool feeling and quickness, and the outer knitted fabric layer, the middle function filter layer and the inner skin-attached knitted fabric layer are connected in a fitting manner;
the mask comprises a mask body and is characterized in that a first section of line, a second section of line and a third section of line are sequentially arranged on the central line of the left side and the right side of the mask body from top to bottom, the first section of line corresponds to a nose length covering area, the second section of line corresponds to a nose opening covering area, the third section of line corresponds to a chin covering area, an included angle theta 2 is formed between the extension line of the nose length covering area and the extension line of the nose opening covering area, and an included angle theta 3 is formed between the extension line of the nose opening covering area and the extension line of the chin covering area.
The length of the first section line is 40-50mm, and the angle theta 2 is more than or equal to 170 degrees and more than or equal to 130 degrees.
The length of the second section line is 80-100mm, and the 140-degree angle is larger than or equal to theta 3 and larger than or equal to 80 degrees.
The length of the third section of wire is 10-50 mm.
The side of the mask main body is sequentially provided with a side face position covering area and a front face covering area from the side edge of the mask main body to the center of the mask main body, the length of the side face position covering area is 10-50mm, the length of the front face covering area is 10-50mm, an included angle theta 5 is formed between the side face position covering area and an extension line of the front face position covering area and between the extension line of the front face position covering area and the extension line of the nose length covering area, and an included angle theta 1 is formed between the extension line.
The middle functional filter layer is a composite fabric formed by combining a film with nano-micropores and one or two layers of fabrics, and two or three layers of composite structures are formed respectively.
The average pore diameter of the film is less than or equal to 300nm, the middle function filter layer is a fabric without elastic fibers, and the pressure difference is less than or equal to 145Pa under the airflow flow of 30L/min.
The outer knitted fabric layer is a knitted fabric, the material components are one or more blended fabrics of terylene, nylon or cotton fibers, the gram weight is less than or equal to 250 g per square meter, the content of elastic fibers is less than 30%, and the pressure difference of the single-layer fabric under the airflow flow of 30L/min is less than or equal to 50 Pa.
The inner skin-sticking knitted fabric layer is one or more blended fabrics of terylene, nylon or cotton fibers, the gram weight is less than or equal to 250 grams per square meter, the pressure difference under the condition of 30L/min airflow flow of the single-layer fabric is less than or equal to 50Pa, and the content of elastic fibers is less than 30 percent％，Qmax>0.15J/Cm2S and OWTC is more than or equal to 2 grades.
The nano microporous film and the outer knitted fabric layer are compounded to form a composite fabric, and the composite fabric is provided with a mask outer layer and a filter layer.
The utility model discloses an adopt knitting surface fabric of different performance as the skin and the inlayer of gauze mask to function filter layer in the middle of the polytetrafluoroethylene microporous membrane is regarded as, and the filter effect is good, can wash used repeatedly many times, and is ventilative good, dresses comfortablely.
Drawings
FIG. 1 is a schematic view of a mask body according to an embodiment of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of a mask body according to an embodiment of the present invention;
FIG. 4 is a schematic view of a mask body according to a third embodiment of the present invention;
fig. 5 is a schematic side view of the present invention.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in attached figures 1, 2 and 5, the utility model discloses a protective facial mask who wears comfortable ventilative and can used repeatedly, including gauze mask main part 1, 1 both sides of gauze mask main part are equipped with hangs and wear device 2, the gauze mask main part includes hydrophobic antibiotic outer knitting precoat, middle function filter layer and has the interior skin knitting precoat of cool and dry, and outer knitting precoat, middle function filter layer and the laminating of interior skin knitting precoat are connected. The protective characteristic of the mask main body is that the Bacterial Filtration Efficiency (BFE) is more than or equal to 95 percent, the filtration efficiency of non-oily particles is more than or equal to 30 percent, and the performance of the mask main body after at least three times of water washing still meets the standard protective requirement.
The central line of the left side and the right side of the mask body is sequentially provided with a first section line L1, a second section line L2 and a third section line L3 from top to bottom, and the first section line corresponds to a nose length covering area and covers the nose length from the nose root to the nose tip; the second section line corresponds to the covering area of the nasal opening and covers the nose tip to the submental area; the third section line corresponds to the chin covering area, wherein an included angle theta 2 is formed between the extension line of the nose length covering area and the extension line of the nose opening covering area, and an included angle theta 3 is formed between the extension line of the nose opening covering area and the extension line of the chin covering area. The nose length covering area forms a larger breathing cavity and avoids the influence on breathing caused by the fact that the inside fabric covers the mouth and the nose in the breathing process.
The length of the first section line L1 is between 40 and 50mm, and the angle theta 2 is more than or equal to 170 degrees and more than or equal to 130 degrees. The length of the second section line L2 is 80-100mm, and 140 degrees is not less than theta 3 and not less than 80 degrees. The length of the third section line L3 is 10-50 mm.
A side face position covering area L5 and a front face covering area L4 are sequentially arranged from the side edge of the mask body to the center of the mask body, the length of the front face covering area L4 is 10-50mm, the length of the side face position covering area L5 is 10-50mm, an included angle theta 5 is formed between the side face position covering area L5 and an extension line of the front face covering area L4, and an included angle theta 1 is formed between the extension line of the front face covering area L4 and an extension line of the nose length covering area L1.
Through the setting, the central line of the left side and the right side of the mask main body is not a straight line or an arc from top to bottom, but forms a three-section type similar folding line, and an included angle is formed between adjacent sections to form a better breathing cavity.
The outer knitted fabric layer, the middle functional filter layer and the inner skin-adhering knitted fabric layer are formed by adhering through an adhering process, spot gluing is carried out, the gluing amount is 3-10gsm, the point diameter of the rubber roller is 500-; the coverage rate is 20-35%, and the curing time is 24-48 hours.
The middle functional filter layer is a film with nano-micropores, the Bacterial Filtration Efficiency (BFE) of the film is more than or equal to 95 percent under the airflow flow of 30L/min, the PFE of the film is more than or equal to 70 percent, the pressure difference is less than or equal to 145Pa, the pore diameter is less than or equal to 300nm, and the film has good waterproofness and bacteriostasis performance.
The gram weight of the outer knitting fabric layer is less than or equal to 250 grams per square meter, and the pressure difference of the single-layer fabric of the outer knitting fabric layer is less than or equal to 145Pa under the airflow flow of 30L/min. The content of the elastic fibers of the outer knitted fabric layer is lower than 30%, particularly lower than 1%.
The outer knitted fabric layer is subjected to hydrophobic antibacterial finishing, and specifically comprises the following steps:
selecting 50-80g/L of oxidized bactericide Sanitized LMB 10-90, 20-50g/L of three-proofing finishing agent RUCO-GUARD AFH6 and the balance of water, and mixing to obtain a medicament;
the treatment process comprises a step of soaking and rolling, wherein the liquid carrying rate of the terylene fabric is 50-60%, the liquid carrying rate of the nylon fabric is 60-70%, the drying temperature is 110-.
The gram weight of the inner skin-sticking knitted fabric layer is less than or equal to 250 grams per square meter, the pressure difference of a single-layer fabric of the inner skin-sticking knitted fabric layer is less than or equal to 10Pa under the condition of 30L/min airflow flow, and the content of elastic fibers of the inner skin-sticking knitted fabric layer is less than 30 percent. The inner skin-sticking knitted fabric layer has the characteristic of cool and dry feeling, and is more comfortable to wear.
The nanoporous membrane is a polytetrafluoroethylene microporous membrane (ePTFE). The polytetrafluoroethylene microporous membrane and the outer knitted fabric layer are compounded to form a composite fabric, and the composite fabric is provided with an outer knitted fabric layer of the mask main body and an intermediate functional filter layer. The polytetrafluoroethylene microporous membrane is compounded with the outer knitted fabric layer and the inner skin-attached knitted fabric layer to form the mask main body. The polytetrafluoroethylene microporous membrane and the two non-elastic fabrics are compounded to form an intermediate functional filter layer, and the polytetrafluoroethylene microporous membrane and the two non-elastic fabrics are formed by sewing.
As shown in fig. 2, the mask body may be formed by combining multiple layers of fabrics, such as fabric a, fabric B, fabric C, fabric D, and fabric E.
The following description will be made of specific different mask types.
In the first embodiment, as shown in fig. 1 and 2, the design is a cool comfortable water-washable protective mask, the hanging and wearing device on the mask body is an ear band, and the mask is designed from the outside to the skin-facing fabric by the following materials:
fabric A: TEI80135FC knitted elastic fabric, which comprises 72% of polyester and 28% of spandex, is provided by Dongguan super textile Co. Adding water repellent assistant and green antibiotic assistant. The preventionThe water splashing auxiliary agent is Rodav Bionic
A bionic ecological waterproof agent RUCO-DRY ECO fluorine-free waterproof finishing agent; antimicrobial adjuvant Sanitized TH22-27 was used in this example. The finishing formulation thereafter was as follows:
30-60g/l RUCO-DRY ECO，
15-30g/l of RUCO-LINK EIT or RUCO-LINK BEW,
6-15g/l Sanitized TH22-27，
the rest is water.
The finishing process comprises the following steps: padding the belt liquor rate at 60-80%, drying/baking at 150 deg.C for 2 min.
Fabric B: 10D, 100% polyester woven fabric.
Fabric C: n95 mask film;
fabric D: 10D terylene tatting fabric;
the BCD fabric forms a structure that two layers of woven fabric sandwich one layer of mask film through fitting.
Fabric E: 129551C, 71% of nylon and 29% of spandex, and is a cool and quick-moisture-absorption fabric. Measured according to GB/T35263-2017 standard under the temperature difference condition of 15 ℃.
For the closely knit nature and the parcel nature with the face of improving gauze mask surface fabric, this gauze mask has carried out 3D and has cut out the design and promote the space of breathing chamber through increasing the volume secant and in order to improve the breathing comfort, avoids common nexine surface fabric to cover the nose when breathing in the current gauze mask.
Through detection, the particle filtration efficiency is 98% of the protection characteristic Bacterial Filtration Efficiency (BFE) according to the YY0469-2011 standard, the non-oily particle filtration efficiency is more than or equal to 90%, and the particle filtration efficiency has the characteristic that the performance change is less than 3% after at least three times of water washing.
In the second embodiment, as shown in fig. 3 and 2, a daily protective washable mask is used, and the hanging and wearing device is an ear band, in the first embodiment, the fabric a, the fabric C and the fabric E are the same as those in the first embodiment. The fabrics B and D adopt DPP200 mesh white mesh fabrics produced by the commercial industry of ten-thousand Li printing equipment. The BCD fabric forms a structure that two layers of gauze fabrics sandwich one layer of mask film through fitting, so that the air permeability of the composite fabric is further improved.
Through detection, the particle filtration efficiency is 97% according to the protection characteristic Bacterial Filtration Efficiency (BFE) of YY0469-2011 standard, the non-oily particle filtration efficiency is not less than 90%, and the particle filtration efficiency has the characteristic that the performance change is less than 3% after at least three times of water washing.
Example three, as shown in fig. 4 and 2, the hanging and wearing device is formed by directly perforating the fabric, which is a fashion protective mask. Mask shell fabric A was made from TEI82518 spacing shell fabric and was functionally finished as described in example one.
Selecting the same fabric C as the fabric E in the first embodiment, selecting the fabric E of 129551C, wherein the fabric E has a cool feeling function and a one-way moisture-conducting function, and the gmax of the fabric E is measured according to the GB/T35263-2017 standard under the temperature difference condition of 15 ℃>0.25J/Cm2S; according to GB/T21655.2, the liquid water diffusion speed is more than or equal to 3 grades and the one-way transfer index is more than or equal to 2 grades. The ACE fabric is directly compounded, and the compounded fabric has comfortable protection performance and free cutting characteristic, so that the mask production process is only obtained through three processes, namely (1) left and right mask cutting pieces, (2) punching and shearing ear hanging holes and (3) ultrasonic bonding of the left and right mask cutting pieces.
Although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications, equivalents, improvements, and the like can be made in the technical solutions of the foregoing embodiments or in some of the technical features of the foregoing embodiments, but those modifications, equivalents, improvements, and the like are all within the spirit and principle of the present invention.
Claims (10)
1. A protective mask which is comfortable to wear, breathable and reusable comprises a mask main body, wherein hanging wearing devices are arranged on two sides of the mask main body;
the mask comprises a mask body and is characterized in that a first section of line, a second section of line and a third section of line are sequentially arranged on the central line of the left side and the right side of the mask body from top to bottom, the first section of line corresponds to a nose length covering area, the second section of line corresponds to a nose opening covering area, the third section of line corresponds to a chin covering area, an included angle theta 2 is formed between the extension line of the nose length covering area and the extension line of the nose opening covering area, and an included angle theta 3 is formed between the extension line of the nose opening covering area and the extension line of the chin covering area.
2. The respirator as claimed in claim 1 that is comfortable to wear, breathable and reusable, wherein the first segment has a length of between 40 and 50mm, and 170 ° ≧ θ 2 ≧ 130 °.
3. The protective mask that is comfortable to wear, breathable and reusable according to claim 2, wherein the length of the second segment is between 80 and 100mm, 140 ° ≧ θ 3 ≧ 80 °.
4. The respirator as claimed in claim 3 which is comfortable to wear, breathable and reusable, wherein the third length of thread is between 10 mm and 50 mm.
5. The protective mask comfortable to wear, breathable and reusable according to claim 4, wherein the mask body has a side face position covering area and a front face covering area from the side edge to the center of the mask body in this order, the side face position covering area has a length of 10 to 50mm, the front face covering area has a length of 10 to 50mm, an angle θ 5 is formed between the side face position covering area and the extension line of the front face covering area, and an angle θ 1 is formed between the extension line of the front face covering area and the extension line of the nose length covering area.
6. The protective facial mask that is comfortable to wear, breathable and reusable according to claim 5, wherein the intermediate functional filter layer is a composite fabric of a nanoporous film combined with one or two layers of fabric, forming a two-layer composite or three-layer composite structure, respectively.
7. The respirator as claimed in claim 6 which is comfortable to wear, breathable and reusable, wherein the membrane has an average pore size of less than or equal to 300nm, the intermediate functional filter layer is a fabric free of elastic fibers and has a pressure differential of less than or equal to 145Pa at an airflow rate of 30L/min.
8. The protective mask of claim 7 wherein the outer knitted fabric layer is a knitted fabric, the material component is one or more blended fabrics of polyester, nylon or cotton fibers, the grammage is less than or equal to 250 grams per square meter, the content of elastic fibers is less than 30%, and the pressure difference at 30L/min airflow rate of the single layer fabric is less than or equal to 50 Pa.
9. The protective mask of claim 8 wherein said inner skin knit layer is one or more blended fabrics of polyester, nylon or cotton fibers having a grammage of 250 grams per square meter or less, a pressure differential of 50Pa or less at 30L/min airflow rate of the single layer fabric, an elastic fiber content of less than 30%, and Qmax>0.15J/Cm2S and OWTC is more than or equal to 2 grades.
10. The protective mask of claim 9, wherein the nanoporous film is combined with an outer knitted fabric layer to form a composite fabric, the composite fabric comprising an outer mask layer and a filter layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498039.8U CN213992531U (en) | 2020-07-24 | 2020-07-24 | Protective mask comfortable to wear, breathable and reusable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021498039.8U CN213992531U (en) | 2020-07-24 | 2020-07-24 | Protective mask comfortable to wear, breathable and reusable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213992531U true CN213992531U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021498039.8U Active CN213992531U (en) | 2020-07-24 | 2020-07-24 | Protective mask comfortable to wear, breathable and reusable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213992531U (en) |
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2020
- 2020-07-24 CN CN202021498039.8U patent/CN213992531U/en active Active
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