CN113262402A

CN113262402A - Protective effect adjustable high gas permeability gauze mask

Info

Publication number: CN113262402A
Application number: CN202110496497.0A
Authority: CN
Inventors: 于菲菲; 周干
Original assignee: Hangzhou Luosong Trading Co ltd
Current assignee: Hangzhou Luosong Trading Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-08-17

Abstract

The invention relates to the technical field of medical protection, and discloses a high-permeability mask with an adjustable protection effect, which comprises a mask layer, wearing pieces, a support frame, resistance reducing parts, functional filtering parts and an adapting frame, wherein the support frame is bonded on the inner side of the mask layer through hot melt adhesive; the problem of traditional gauze mask soft collapse appears easily, and filterability and gas permeability are relatively poor, and the protecting effect is little, can not satisfy crowd's protection demand is solved.

Description

Protective effect adjustable high gas permeability gauze mask

Technical Field

The invention relates to the technical field of respiratory protection, in particular to a high-permeability mask with an adjustable protection effect.

Background

The non-woven fabric mask based on melt-blown materials, such as a common civil plane mask, a medical mask, a KN95 mask and the like, is a disposable product and cannot be washed by water, the mask type is mainly a plane type, a folding type, a fish type and the like, the ventilation area mainly used on the surface of the mask is actually cloth near the nose and the lip when the mask is worn, the area is limited, and the resistance of the common melt-blown filter material is large, so that the mask is breathed out after being worn for a long time, however, when the expensive low-resistance water electret filter material is used, the resistance can be effectively reduced, but the bottleneck of the effective ventilation area is formed, and most melt-blown materials are not used as the main ventilation area, so that the cost is wasted; the washable mask usually adopts an insert filtering material form, so that the protection effect is small.

The mask only has the protection function of particles, and can protect peculiar smell, organic gas, inorganic gas or steam, the mask product in the current market only has a certain adsorption protection function of an active carbon mask on peculiar smell, other protection functions are very weak, as predicted by experts, haze can be gradually reduced along with industrial waste gas treatment in recent years, but along with the alleviation of epidemic situations and the recovery of production and manufacturing industries, the haze treatment speed is higher or longer, main pollutants in haze are mainly secondary aerosol generated by organic volatile matters except particles, the protection of the pollution is more important than particle protection, the mask is limited by a mask structure and a filtering material, and no commercialized mask product for realizing the gas protection is available in the current market. In addition, on the one hand, the protective mask for operation, such as environments of decoration, pesticide spraying and the like, still uses the traditional active carbon mask, has small effect and limited protective capacity, and therefore, a mask product which effectively improves the breathing passage area near the nose and the lip is needed to further solve the problem of breath holding of the mask.

Disclosure of Invention

The invention provides a high-permeability mask with an adjustable protection effect, which has the advantages of simple structure, good permeability and remarkable protection effect, and solves the problems that the traditional mask is easy to collapse, poor in filtering property and permeability, small in protection effect and incapable of meeting the protection requirements of people.

The invention provides the following technical scheme: a high-permeability mask with an adjustable protection effect comprises a mask layer, a wearing piece, a support frame, resistance reducing parts, functional filtering parts and an adapting frame, wherein the mask layer is compounded by a first mask layer and a second mask layer through a hot melt adhesive compounding process, the mask layer is of a concave three-dimensional structure, the support frame is of a net three-dimensional structure, the support frame is adhered to the inner side of the mask layer through a hot melt adhesive, a fixing position is arranged in the middle of the inner side of the support frame, a fixing base is arranged on the outer side of the support frame, the fixing base is of a net structure and is positioned on the left side and the right side of the fixing position, the number of the wearing pieces is two, the wearing pieces are respectively positioned on the two sides of the mask layer, the wearing pieces are adhered between the mask layer and the support frame through the hot melt adhesive, the number of the resistance reducing parts is two, and, the functional filtering component is positioned on the inner side of the supporting frame, the functional filtering component is installed on the fixed position, the adapter frame is of an annular three-dimensional structure and is adhered to the inner side of the mask layer through hot melt adhesive, the adapter frame is in butt joint with the supporting frame, and a nose groove is further formed in the upper side of the adapter frame.

Preferably, the first surface layer is one of viscose fiber non-woven fabric, chemical fiber knitted fabric or chemical fiber woven fabric, the first surface layer contains 0.01-0.5% of nano bacteriostatic agent, and the bacteriostatic agent is a surface ion enhanced nano titanium dioxide and nano zinc oxide compound; the first surface layer contains an ultraviolet absorption printing layer, and the printing layer is composed of multi-primary color light-changing microcapsules.

Preferably, the second surface layer is a PTFE nano porous membrane, a PI nano membrane or a PTFE/PI composite nano fiber porous membrane, the aperture is 0.05-2.5um, the aperture ratio is greater than 80%, and the filter material has the advantages of water washability, extremely high filterability and resistance of 30-500 Pa, and is provided with a through hole which is matched with the cross section of a channel of the resistance reducing component and the functional filter component.

Preferably, the wearing piece is made of elastic materials and used for fixing the mask behind ears or neck.

Preferably, the support frame is made of synthetic resin and integrally formed through injection molding, and the soft material is arranged on the back side edge of the support frame and formed through secondary injection molding.

Preferably, the resistance reducing component comprises an upper cover and a spring plate, the upper cover is connected with the fixed base in a buckling mode, and the spring plate is clamped between the upper cover and the fixed base.

Preferably, the functional filter component comprises an upper frame, a filter material and a lower frame, the upper frame is clamped on the fixing position, the lower frame is connected with the upper frame in a buckling mode, and the filter material is clamped between the lower frame and the upper frame.

Preferably, the lower frame and the upper frame are formed by injection molding of synthetic resin, the filter material is in a wrinkle shape, and the filter material is mainly formed by compounding one or more of water electret low-resistance melt-blowing, electrostatic cotton, activated carbon cotton, catalytic cotton and slow-release microcapsule blocks or tablets.

The invention has the following beneficial effects:

the invention is used for preventing particle and gas pollution such as bacteria, virus, PM2.5, peculiar smell, organic gas, inorganic gas or steam and the like; the high-end mask is a high-end mask with PM2.5 and harmful gas protection capability, is applied to outdoor activities wearing and special requirement environment wearing at times of moderate air pollution and above, and has the characteristics of harmful gas removal, adjustable filtration grade, no edge leakage, modularization, disposable property, cleanability and the like.

Secondly, the invention obviously improves the airflow circulation area on the effective breathing passage through the pleated structure, breaks through the filtration and resistance bottleneck of the existing mask, and makes the breathing resistance reach the ventilation effect which cannot be reached by the mask in the current stage with the same cost.

The main body has high resistance and high filtering efficiency, can be washed by water, the filtering module has ultralow resistance and high filtering efficiency, can be replaced, reduces environmental pollution, is convenient to use, and can achieve different protection effects by replacing the filtering module according to environmental requirements and user requirements.

The mask has the filtering performance of organic gas, inorganic gas or steam which cannot be realized by the existing masks, the working suitable range of the mask is increased, and the professional protection requirements of people needing the activated carbon mask are met.

The resistance reducing device has the function of the breather valve, and simultaneously has more sensitive triggering effect and inspiration auxiliary resistance reducing performance.

Sixth, the invention, frame-type structure, the gauze mask appearance is stable when wearing, the soft problem that collapses of existing gauze mask can not appear.

Drawings

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic structural diagram of the filter of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, a mask with adjustable protection effect and high air permeability comprises a mask layer 1, a wearing piece 2, a supporting frame 3, a resistance reducing component 4, a functional filtering component 5 and an adapter frame 6.

Wherein, the mask layer 1 is compounded by a first surface layer and a second surface layer through a hot melt adhesive compounding process, the mask layer 1 is in a concave three-dimensional structure, the support frames 3 are in a net-shaped three-dimensional structure, the support frames 3 are adhered to the inner side of the mask layer 1 through the hot melt adhesive, fixing positions 32 are arranged in the middle of the inner side of the support frames 3, fixing bases 31 are arranged on the outer side of the support frames 3, the fixing bases 31 are in a net-shaped structure, the fixing bases 31 are positioned at the left side and the right side of the fixing positions 32, the wearing pieces 2 are respectively positioned at the two sides of the mask layer 1, the wearing pieces 2 are adhered between the mask layer 1 and the support frames 3 through the hot melt adhesive, the number of the resistance reducing components 4 is two, the resistance reducing components 4 are respectively arranged on the fixing bases 31, the functional filtering components 5 are positioned at the inner side of the support frames 3, the functional filtering components 5 are arranged on the fixing positions 32, the adapter frame 6 is in a ring-shaped three-dimensional structure, and the hot melt adhesive adapter frame 6 is adhered to the inner side of the mask layer 1, the adapting frame 6 is butted with the supporting frame 3, and the upper side of the adapting frame 6 is also provided with a nose groove 61.

The first surface layer is one of viscose fiber non-woven fabric, chemical fiber knitted fabric or chemical fiber woven fabric, the first surface layer contains 0.01-0.5% of nano bacteriostatic agent, and the bacteriostatic agent is a surface ion enhanced nano titanium dioxide and nano zinc oxide compound; the first surface layer contains an ultraviolet absorption printing layer, and the printing layer is composed of multi-primary color light-changing microcapsules.

The second surface layer is a PTFE nano porous membrane, a PI nano membrane or a PTFE/PI composite nano fiber porous membrane, the aperture is 0.05-2.5um, the aperture ratio is greater than 80%, and the filter material has the advantages of water washability, extremely high filterability, resistance of 30-500 Pa, and is provided with through holes which are matched with the channel sections of the resistance reducing component 4 and the functional filter component 5.

The wearing piece 2 is made of elastic material and is used for fixing the mask behind ears or neck.

The support frame 3 is made of synthetic resin and integrally formed by injection molding, the edge of the back side of the support frame 3 is provided with a soft material and is formed by secondary injection molding, and the contour line of the soft material is tightly attached to the face of a person, so that the mask has good tightness.

The resistance reducing component 4 comprises an upper cover 41 and an elastic sheet 42, the upper cover 41 is connected with the fixing base 31 in a buckled mode, the elastic sheet 42 is connected between the upper cover 41 and the fixing base 31 in a buckled mode, the elastic sheet 42 is fixed in the resistance reducing component 4 through the upper cover 41 and the fixing base 31 in the buckled mode, the resistance reducing component 4 is used for reducing breathing resistance, the elastic sheet 42 bounces to guide airflow to be discharged during expiration, the elastic sheet 42 closes to reduce the breathing resistance during inspiration, the elastic sheet 42 is made of low-resistance fiber non-woven materials, and the breathing resistance is lower than that of a nano filter material on a surface layer.

The functional filter element 5 comprises an upper frame 53, a filter material 52 and a lower frame 51, wherein the upper frame 53 is clamped on the fixing position 32, the lower frame 51 is connected with the upper frame 53 in a buckling mode, the filter material 52 is clamped between the lower frame 51 and the upper frame 53, a replaceable filter module is adopted, a corrugated structure is used, the filter performance is improved, the resistance is reduced, and different use environment requirements are met.

The lower frame 51 and the upper frame 53 are made of synthetic resin by injection molding, and the filter material 52 is in a corrugated shape, so that the specific filtering surface area is greatly improved; the filter material 52 is mainly formed by compounding one or more of water electret low-resistance melt-blown, electrostatic cotton, activated carbon cotton, catalytic cotton and slow-release microcapsule blocks or tablets, the protection of pollution of bacteria, viruses, pm2.5, pollen, peculiar smell, organic gas, inorganic gas or steam and the like is realized by adjusting the composition and material components of the filter material 52, and when the mask layer 1 is used for organic gas, inorganic gas or steam protection, the second surface layer is a high-density nano film which can prevent gas from passing through.

The filter material 52 can also adopt electret fibers as a PM2.5 filter layer, a catalytic module is added according to the requirement, the semiconductor composite photocatalysis principle is adopted, nitrogen oxides, ozone and the like in the gas after particulate matter filtration are removed to a certain degree, and in a special environment, in order to further improve the pure filtration efficiency, electrostatic spinning filtration of more than 99 grades is selected in a functional module, and the light irradiation density and the enhanced molecular adsorption in the catalytic module are improved; the expiration resistance is reduced by adopting an ultrathin non-woven material gill type structure, and the expiration difficulty is reduced.

The working principle is as follows: when the mask is used, a person only needs to fix the wearing piece 2 behind the ears or the neck, so that the adapting frame 6 is tightly attached to the face of the person, the mask has good tightness, and the mask is tightly clamped through the nose groove 61; when a person exhales, the elastic sheet 42 bounces to guide the airflow to be discharged, and when the person inhales, the elastic sheet 42 is closed to reduce the inhalation resistance; at the same time, filtration can be performed by the functional filter element 5 during exhalation or inhalation.

Claims

1. The utility model provides a protective effect adjustable high gas permeability gauze mask which characterized in that: including face mask layer (1), wear piece (2), support frame (3), fall and hinder part (4), function filtering part (5) and adapter rack (6), face mask layer (1) is compound through hot melt adhesive composite technology by first surface course and second surface course, face mask layer (1) is concave spatial structure, support frame (3) are netted spatial structure, support frame (3) are in through the hot melt adhesive bonding face mask layer (1) inboard, be equipped with fixed position (32) in the middle of support frame (3) inboard, the support frame (3) outside is equipped with unable adjustment base (31), unable adjustment base (31) are netted structure, unable adjustment base (31) are located fixed position (32) left and right sides, the quantity of wearing piece (2) is two, it is located respectively to wear piece (2) face mask layer (1) both sides, it is in through the hot melt adhesive bonding to wear piece (2) face mask layer (1) with the support frame (3) of face mask layer Between, it is two sets of to fall the quantity that hinders parts (4), it installs respectively to fall to hinder parts (4) on unable adjustment base (31), function filtering component (5) are located support frame (3) are inboard, install function filtering component (5) on fixed position (32), adapter frame (6) are cyclic annular spatial structure, adapter frame (6) are in through the hot melt adhesive bonding mask layer (1) are inboard, adapter frame (6) with support frame (3) dock mutually, adapter frame (6) upside still is equipped with nose groove (61).

2. The mask with adjustable protection effect and high air permeability as claimed in claim 1, wherein: the first surface layer is one of viscose fiber non-woven fabric, chemical fiber knitted fabric or chemical fiber woven fabric, the first surface layer contains 0.01-0.5% of nano bacteriostatic agent, and the bacteriostatic agent is a surface ion enhanced nano titanium dioxide and nano zinc oxide compound; the first surface layer contains an ultraviolet absorption printing layer, and the printing layer is composed of multi-primary color light-changing microcapsules.

3. The mask with adjustable protection effect and high air permeability as claimed in claim 1, wherein: the second surface layer is a PTFE nano porous membrane, a PI nano membrane or a PTFE/PI composite nano fiber porous membrane, the aperture is 0.05-2.5um, the aperture ratio is greater than 80%, and the filter material has the advantages of water washability, extremely high filterability and resistance of 30-500 Pa, and is provided with a through hole, and the through hole is matched with the channel section of the resistance reducing component (4) and the functional filter component (5).

4. The mask with adjustable protection effect and high air permeability as claimed in claim 1, wherein: the wearing piece (2) is made of elastic material and is used for fixing the mask behind ears or neck.

5. The mask with adjustable protection effect and high air permeability as claimed in claim 1, wherein: the support frame (3) is made of synthetic resin and is integrally formed through injection molding, and the back side edge of the support frame (3) is provided with a soft material and is formed through secondary injection molding.

6. The mask with adjustable protection effect and high air permeability as claimed in claim 1, wherein: the resistance reducing component (4) comprises an upper cover (41) and an elastic sheet (42), the upper cover (41) is connected with the fixed base (31) in a buckling mode, and the elastic sheet (42) is clamped between the upper cover (41) and the fixed base (31).

7. The mask with adjustable protection effect and high air permeability as claimed in claim 1, wherein: the functional filter component (5) comprises an upper frame (53), a filter material (52) and a lower frame (51), the upper frame (53) is clamped on the fixing position (32), the lower frame (51) is connected with the upper frame (53) in a clamping mode, and the filter material (52) is clamped between the lower frame (51) and the upper frame (53).

8. The mask with adjustable protection effect and high air permeability as claimed in claim 7, wherein: the lower frame (51) and the upper frame (53) are formed by injection molding of synthetic resin, the filter material (52) is in a wrinkle shape, and the filter material (52) is mainly formed by compounding one or more of water electret low-resistance melt-blown, electrostatic cotton, activated carbon cotton, catalytic cotton and slow-release microcapsule blocks or tablets.