阅读说明：本技术 一种新型水凝胶静电驻极化防护口罩 (Novel hydrogel electrostatic electret protective mask ) 是由 赵臣 刘春苗 赵阳 张津豪 黄淑瑜 王喆 赵佳琪 孟桂先 付江山 屈欣月 仝乐欣 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种新型水凝胶静电驻极化防护口罩,包括：口罩本体；柔性骨架支撑部,其沿所述口罩本体内侧设置,且所述骨架支撑部的形状与使用者面部形状相适应；柔性密封条,其沿所述口罩本体的边缘内侧,用于使所述口罩本体与使用者面部紧密贴合；两个挂耳,其在所述口罩本体左右两侧的外侧对称设置。(The invention discloses a novel hydrogel electrostatic electret protective mask, which comprises: a mask body; the flexible framework supporting part is arranged along the inner side of the mask body, and the shape of the framework supporting part is matched with the shape of the face of a user; the flexible sealing strip is arranged along the inner side of the edge of the mask body and is used for enabling the mask body to be tightly attached to the face of a user; and the two hangers are symmetrically arranged on the outer sides of the left side and the right side of the mask body.)

1. A novel hydrogel electrostatic electret protective mask is characterized by comprising:

a mask body;

the flexible framework supporting part is arranged along the inner side of the mask body, and the shape of the framework supporting part is matched with the shape of the face of a user;

the flexible sealing strip is arranged along the inner side of the edge of the mask body and is used for enabling the mask body to be tightly attached to the face of a user;

and the two hangers are symmetrically arranged on the outer sides of the left side and the right side of the mask body.

2. The novel hydrogel electrostatic electret protective mask of claim 1, wherein the mask body comprises a meltblown nonwoven layer, an electret electrostatic layer and a negative oxygen ion layer in this order from inside to outside.

3. The novel hydrogel electrostatic electret protective mask as claimed in claim 1 or 2, wherein the flexible skeleton-supporting portion comprises:

an extension part arranged along the inner side of the mask body;

a plurality of flexible first support portions disposed laterally along the outer extension portion;

a plurality of flexible second supports disposed longitudinally along the outer extension.

4. The novel hydrogel electrostatic electret protective mask of claim 3, wherein the flexible skeleton-support portion is made of infant nipple-grade silicone.

5. The mask according to claim 3, wherein the flexible sealing strip is made of a hydrogel polymer.

6. The novel hydrogel electrostatic electret protective mask as claimed in claim 4 or 5, wherein the center of the mask body is arranged in an overlapping structure to form a pleated structure.

7. The novel hydrogel electrostatic electret protective mask of claim 6, further comprising: and the connecting body is fixed on the outer side of the mask body and used for fixing the hanging lugs.

8. The novel hydrogel electrostatic electret protective mask of claim 7, wherein the connector comprises:

the first connecting part is fixed on the outer side of the mask body, and a female buckle is arranged on the first connecting part;

the second connecting part is fixed on the outer side of the mask body, a male buckle is arranged on the second connecting part, and the male buckle can be matched and clamped with the female buckle;

a bumper plate foldably connected between the first connection portion and the second connection portion.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a novel hydrogel electrostatic electret protective mask.

Background

The mask has a filtering effect on air entering a respiratory tract as a protective article, and different types of masks can filter dust, pollen, haze, bacteria, virus droplets and other particles to different degrees according to different filtering materials. The mask can be used for the basic protection requirement of daily life and also plays an important role in the protection process of various respiratory infectious diseases. In the epidemic prevention process of SARS epidemic outbreak in 2003, avian influenza epidemic outbreak in 2009 in 2004 and new coronary pneumonia epidemic in 2020 in China, wearing the mask becomes the simplest and most effective protective measure for effectively blocking virus transmission and protecting the life safety of people.

Researches find that in the new crown pneumonia epidemic situation of 2020, disposable medical surgical masks and N95 masks have a certain protection effect on new crown viruses, play an extremely important role in the epidemic prevention process of new crown pneumonia, and expose some defects of the two masks. The particle filtration efficiency of the medical surgical mask is only 30%, the nose bridge strip is thin and soft, the fitting degree and the tightness are poor, air leakage on two sides of the nose bridge is easily caused, and the protection effect is reduced. The particle filtration efficiency of the N95 mask reaches 95%, the protection effect is good, but because the tightness of the filter material is too strong and the air permeability is poor, oxygen deficiency can be caused after long-time wearing, and uncomfortable conditions such as dizziness, suffocation and the like occur. In addition, the sealing aluminum strip at the nasal bridge part has excessive hardness, so that the skin is damaged after long-term use, and the possibility of infection is increased due to the exposure of wounds.

Disclosure of Invention

The invention designs and develops a novel hydrogel electrostatic electret protective mask, and the invention aims to increase the air permeability and the comfort level on the basis of increasing the filtering protective performance by adopting a novel high-efficiency low-resistance electret electrostatic fiber composite material as a filter element.

The invention also aims to add the polymer hydrogel sealing strip on the outer edge of the mask, so that the mask is tightly attached to the face and is soft and conformal, the sealing property and the protection effect of the mask are further enhanced, the local extrusion is effectively buffered and reduced, and the pressure damage is avoided.

The third purpose of the invention is to connect the hangers through the connecting body, the included angles of the hangers can be flexibly adjusted, and then the proper stress mode of the ears can be flexibly selected, so that the wearing comfort of the mask is further improved, and the mask can better meet the requirements of users with different face shapes and ear shapes.

The technical scheme provided by the invention is as follows:

a novel hydrogel electrostatic electret protective mask comprises:

a mask body;

the flexible framework supporting part is arranged along the inner side of the mask body, and the shape of the framework supporting part is matched with the shape of the face of a user;

the flexible sealing strip is arranged along the inner side of the edge of the mask body and is used for enabling the mask body to be tightly attached to the face of a user;

and the two hangers are symmetrically arranged on the outer sides of the left side and the right side of the mask body.

Preferably, the mask body sequentially comprises a melt-blown non-woven layer, an electret electrostatic layer and a negative oxygen ion layer from inside to outside.

Preferably, the flexible skeletal support comprises:

an extension part arranged along the inner side of the mask body;

a plurality of flexible first support portions disposed laterally along the outer extension portion;

a plurality of flexible second supports disposed longitudinally along the outer extension.

Preferably, the material of the flexible framework supporting part is infant nipple-level silica gel.

Preferably, the flexible sealing strip is made of polymer hydrogel.

Preferably, the center of the mask body is provided with an overlapping structure to form a fold structure.

Preferably, the method further comprises the following steps: and the connecting body is fixed on the outer side of the mask body and used for fixing the hanging lugs.

Preferably, the linker comprises:

the first connecting part is fixed on the outer side of the mask body, and a female buckle is arranged on the first connecting part;

the second connecting part is fixed on the outer side of the mask body, a male buckle is arranged on the second connecting part, and the male buckle can be matched and clamped with the female buckle;

a bumper plate foldably connected between the first connection portion and the second connection portion.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention adopts the novel polarization-standing electrostatic fiber composite material as the filtering material of the mask; the novel filter material comprises a melt-blown non-woven layer, an electret electrostatic layer and a negative oxygen ion layer from inside to outside in sequence; the invention mainly depends on the mechanical barrier functions of Brown diffusion, interception, inertial collision, gravity sedimentation and the like to filter larger particles in the air; the electrostatic fiber which is in polarization directly attracts charged particles in the air and captures the charged particles by electrostatic force or induces neutral particles in the air to generate polarity and capture the neutral particles, thereby filtering submicron particles in the air more effectively; the fiber structure is fluffy, three-dimensional and three-dimensional, the porosity is more than 60%, and the filtration efficiency is obviously improved under the condition of reducing air resistance. The filtering efficiency can reach more than 95 percent, and meanwhile, the concentration of the negative oxygen ions which are continuously released can reach 15000-25000 oxygen ions/cubic centimeter, so that the air permeability is improved, and the discomfort conditions such as suffocation and the like caused by wearing the mask for a long time are effectively improved. The medical protective mask can effectively prevent viruses and pollen from invading, deeply purify dust, has broad-spectrum antibacterial and bacteriostatic effects, can filter air suspended particles such as pollen, viruses, crowd spray, automobile exhaust, second-hand smoke and the like, has the particle filtering efficiency of 95 percent, and belongs to a first-class medical protective mask;

2. in order to solve the problems that the mask is poor in sealing performance and the skin is damaged by the sealing aluminum strips, the high-molecular hydrogel sealing strips are designed on the outer edge of the mask, the sealing performance of the mask is improved through the unique and novel structural design, and the high-efficiency filtering capacity of the mask fabric is guaranteed; the design accords with the ergonomic curve design and can be perfectly attached to the face. The air leakage rate is reduced, particle pollutants are not easy to leak into a protective layer formed by the sealing rubber strip, the mask tightness during facial muscle movement is effectively improved, and the comfortable contact surface can not cause pressure damage to the skin even being worn for a long time;

3. after the new coronary pneumonia epidemic occurs, the N95 mask is only used for the protection of front-line medical care personnel due to good protection effect, difficult production and high price; the invention adopts an automatic production line, has short production period and low production cost, and has no special performance requirement on production equipment; the cost of the mask is greatly reduced by selecting novel materials, the mask has the protection effect of the N95 mask, simultaneously has the low price of the medical surgical mask, and can be further reduced after the quantitative production.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of the novel hydrogel electrostatic electret protective mask according to the invention.

Fig. 2 is a schematic three-dimensional structure diagram of the novel hydrogel electrostatic electret protective mask according to the invention.

Fig. 3 is a front view of the novel hydrogel electrostatic electret protective mask according to the invention.

Fig. 4 is a rear view of the novel hydrogel electrostatic electret protective mask according to the invention.

Fig. 5 is a left side view of the novel hydrogel electrostatic electret protective mask according to the invention.

Fig. 6 is a schematic perspective view of the mask body according to the present invention.

Fig. 7 is a front view of the mask body according to the present invention.

Fig. 8 is a left side view of the mask body according to the present invention.

Fig. 9 is a schematic perspective view of the flexible sealing strip according to the present invention.

Fig. 10 is a schematic perspective view of a connector according to the present invention.

FIG. 11 is a left side view of a connector according to the present invention.

Fig. 12 is a schematic structural view of the connector of the present invention when it is not engaged.

Fig. 13 is a schematic structural view of the connector of the present invention when it is not engaged.

Fig. 14 is a schematic structural view of the connector of the present invention when it is not engaged.

Fig. 15 is a schematic structural view of the connector of the present invention when engaged.

Fig. 16 is a schematic structural view of the connector of the present invention when engaged.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.

As shown in fig. 1 to 9, the present invention provides a novel hydrogel electrostatic electret protective mask, the main body of which comprises a mask body 110, a flexible 3D skeleton support portion, a flexible sealing strip 130, two hangers 140 and a connector 150; wherein, the mask body 110 comprises a melt-blown non-woven layer, an electret electrostatic layer and a negative oxygen ion layer from inside to outside in sequence, the center of the mask body 110 is arranged to be an overlapping structure to form a fold structure 111, a flexible 3D framework supporting part is arranged along the inner side of the mask body 110, the shape of the flexible 3D framework supporting part is adapted to the shape of the face of a user, the flexible 3D framework supporting part comprises a plurality of flexible first supporting parts 121, a plurality of flexible second supporting parts 122 and an extension part 123, the extension part 123 is arranged along the inner side of the mask body 110, the plurality of flexible first supporting parts 121 are transversely arranged along the inner side of the mask body 110, the plurality of flexible second supporting parts 122 are longitudinally arranged along the mask body 110, the shape of the flexible 3D skeletal support formed by the plurality of flexible first supports 121, the plurality of flexible second supports 122 and the outer extension 123 conforms to the shape of the user's face;

as shown in fig. 10 to 16, the connecting body 150 includes a first connecting portion 151, a second connecting portion 152 and a buffer plate 153; wherein, first connecting portion 151 is fixed in the outside of gauze mask body 110, set up pin 154a on first connecting portion 151, second connecting portion 152 is fixed in the outside of gauze mask body 110, set up box 154b on the second connecting portion 152, pin 154a can match the block with box 154b, buffer board 153 folding connection is between first connecting portion 151 and second connecting portion 152, the one end clamp of hangers 140 is being worked as between first connecting portion 151 and second connecting portion 152, after first connecting portion 151 and second connecting portion 152 are folding, match the block through pin 154a and box 154b, set up hangers 140 on gauze mask body 110, and the contained angle of hangers 140 is adjustable.

The mask body 110 is a composite mask fabric for blocking particles, is a basic component for playing the basic functions of the mask, and is also provided with a fold structure 111 on the surface for adjusting the opening size of the mask, so that the effective volume is ensured; the high polymer hydrogel sealing strip 130 is a characteristic design of the mask provided by the invention, can effectively fix the mask and increase the mask adhesiveness, adopts a high polymer hydrogel material, can play a sealing role by virtue of the high polymer characteristics and toughness of the high polymer hydrogel material, can adapt to long-term wearing due to the softness and comfort of the material, is arranged at the edge of the mask, can ensure that most of the nose and the mouth are still covered in the case of mask deformation caused by certain actions, and has good airtightness and ensures the filtering performance of the mask; the flexible 3D framework supporting part is used for supporting and fixing mask materials, and a large-capacity space is formed between the mask and the skin of the face, so that the mouth and the nose are guaranteed to have enough breathing cavities; the hanging lug 140 is a firm flat hanging lug rubber band hanging lug, the hanging lug does not contain latex, the flat band type design ensures that the ear is more comfortable, no latex or glass fiber material exists, the ear is not easy to slip, and the allergic skin is preferred; the outer edge of both sides of the mask is provided with the connecting body 150, so that the included angle between the hanging lug 140 and the mask body 110 can be adjusted, the stress mode suitable for ears can be flexibly selected, the wearing comfort of the mask is further improved, and the mask can better adapt to the requirements of users with different face shapes and ear shapes.

The present invention will be further specifically described with reference to the following examples.

Examples

The mask surface material of the mask body 110 is a melt-blown non-woven layer, an electret electrostatic layer and a negative oxygen ion layer in sequence from inside to outside;

the melt-blown non-woven fabric is suitable for air filtration, the air filter material series is composed of PP/PET bi-component composite materials and has a three-dimensional net structure, the PET materials play a role of supporting a skeleton in the air filter material series, and the stiffness of the filter layer is provided, so that the material has lower resistance while the efficiency is ensured;

the electret electrostatic layer adsorbs small particles in air by utilizing static electricity, has the advantages of higher filtering efficiency, higher filtering precision, smaller resistance, larger dust holding capacity and longer service life, can effectively filter particles with one percent of the particle size of pollen and can capture particles with the diameter equivalent to one fourteen times of the diameter of one hair.

The electret electrostatic layer is formed by selecting imported polypropylene fiber, carrying out needling processing on the polypropylene fiber and then carrying out corona discharge, so that the polypropylene fiber is charged to form an electrostatic field, fine dust is charged, and the dust is adsorbed on the fiber through the mutual attraction of opposite charges, thereby achieving the purpose of higher filtering efficiency and precision; the electret electrostatic layer has the following advantages:

(1) high filtration efficiency: dust is filtered by means of electrostatic adsorption to filter suspended particles in the air;

(2) low filtration resistance: the needling process has fluffy and three-dimensional structure and high porosity, and greatly reduces the filtration resistance;

(3) the dust holding capacity is large: fluffy, a large number of three-dimensional pinholes and high porosity are all favorable for dust holding of the mask.

The electret electrostatic detection layer adopts special fibers and is subjected to a series of physical and chemical treatments, so that the contact area of dust and the fibers is increased, the filtering area can be increased, and the physical interception and gravity settling filtering efficiency is improved; and the specific surface area is increased, the surface charge of the fiber is improved, and the electrostatic adsorption efficiency is increased.

The negative oxygen ion layer is used as the inner layer material of the mask, and has the functions of releasing negative oxygen ion far infrared rays of air for a long time and sterilizing and removing mites with high efficiency and broad spectrum; the concentration of the negative oxygen ions is 15000-; the far infrared emissivity is more than 90%, and the far infrared material also has the effects of activating cells, increasing immunity, improving human microcirculation and the like; the broad-spectrum efficient antibacterial material is added, the disinfection and mite removal rate is over 99.99 percent, and the multifunctional antibacterial mite-killing agent has the functions of purifying air, removing peculiar smell and the like, and simultaneously has good touch, fastness and comfortable air permeability.

According to the invention, the flexible 3D framework supporting part is arranged in the mask and is used for supporting and fixing mask materials, and a large-capacity space is formed between the mask and the facial skin, so that the mouth and the nose are ensured to have enough breathing cavities; the traditional mask can be loosened due to the movement of the face of a person in the wearing process, particularly, the mask is tightly attached to the mouth and the nose during air suction, the air tightness cannot be guaranteed, and meanwhile, the comfort is also influenced, and the design can make up for the defect; the width of the invisible framework consists of two transverse silica gel strips and three longitudinal silica gel strips, and the width and the thickness of the invisible framework are 0.2 cm; the 3D invisible framework is integrally arc-shaped, is bent towards the side of a user, is matched with the shapes of two sides of the nose of the user, can be attached to the nose and the lower jaw of the user, can prevent air from entering the mask from gaps at the attaching positions of the mask body and the nose and the lower jaw of the user, enables the mask body to be attached to the face of the user more tightly, and improves the air tightness of the mask; the raw materials are selected from special silica gel materials, and the silica gel has good physical properties such as air permeability, pressure resistance and rebound resilience.

The unique design of this patent is that the round polymer aquogel sealing strip 130 that adds along the outer edge of gauze mask body 110 has improved the seal of gauze mask, guarantees the high-efficient filtering capability of gauze mask surface fabric. The local extrusion is reduced through the buffering of the hydrogel material, the mask can be supported and fixed, the mask has good elasticity and strong plasticity, has good conformity to the skin without stimulation to human tissues, and can effectively protect the skin of the contact surface of the face mask and the protective spectacles;

the soft, free-form, smooth and comfortable contact surface avoids gaps formed by the infirm attachment and poor tightness of the face, and never gives any opportunity for unfiltered dirty gas to permeate into the respiratory tract; meanwhile, the use feeling of zero pressure effectively promotes subcutaneous circulation, can prevent secondary infection caused by deepening injury or skin breakage, and obviously improves the comfort of medical care personnel wearing the medical protective equipment for a long time; meanwhile, the ultrasonic welding technology is adopted, so that the indirect harm of the residual heavy metal and the chemical adhesive to the human body such as contact or volatilization and the like is avoided, and the environment-friendly significance and the skin-friendly process are really realized;

preferably, in this embodiment, the hydrogel sealing strip has an overall width of 1cm, and 0.5cm inside and outside the mask, respectively, with a negligible thickness.

The hydrogel is a novel functional polymer material with a three-dimensional network structure formed by crosslinking hydrophilic molecules or polymers through covalent bonds, hydrogen bonds or van der waals force and the like; the polymer material swells and dissolves in water to form high-viscosity gel, and the gel is in a semisolid state in a steady state and shows viscoelasticity. The hydrogel has the characteristics of high water content, quick swelling, softness, adjustable-size porous structure, rubber-like viscosity, excellent biocompatibility and the like, and is widely used in the biomedical fields of contact lenses, tissue engineering, diagnostics, drug controlled release and the like.

The properties of hydrogels depend to a large extent on the unit structure of the material prepared and the network structure formed after its interaction. The polymer network imparts solid-like mechanical properties to the hydrogel, while the aqueous phase is capable of rapid diffusion, imparting liquid-like transport properties to the hydrogel.

The traditional hydrogel has the problems of non-uniform network structure, lack of energy dissipation mechanism and the like, so that the mechanical properties of the traditional hydrogel are poor, and the application of the traditional hydrogel in practical production and living is limited. The invention adopts the high-strength and high-toughness double-network hydrogel, and the unique energy dissipation mechanism of the double-network hydrogel obviously improves the mechanical property of the hydrogel.

The chitosan physical network (crystalline network or chain entanglement network) in the double-network hydrogel is damaged in the process of gel stretching deformation, so that energy is dissipated, and the effect of reinforcing and toughening gel is achieved through oriented design. Meanwhile, the breakage and reconstruction of some reversible non-covalent bonds not only endow the hydrogel with high strength, but also enable the hydrogel to have certain recoverability and self-repairing characteristics.

The polymer hydrogel also has the characteristic of low allergy probability, so the polymer hydrogel is particularly suitable to be used as a novel material for protecting and treating head and face pressure injury, and has the characteristics of excellent biocompatibility, excellent toughness, strong tensile property, comfort, softness, skin-friendly fit and the like.

The hanging lug 140 is a firm flat hanging lug rubber band, the hanging lug rope of the hanging lug 140 does not contain latex, the flat belt type design ensures that the ear is more comfortable, no latex or glass fiber material exists, the ear is not easy to slip, and the first choice of allergic skin is

The outer edges of both sides of the mask are provided with connectors 150 for connecting the mask body 110 and the hangers 140; the mask comprises four connecting bodies 150, each connecting body 150 is 2.2 cm long in whole and 0.8 cm wide, a buffer plate 153 with two holes and two holes with the diameter of 0.6 cm is 0.2 cm, the height of the male buckle 154a and the height of the female buckle 154b are consistent with the height of the buffer plate 153 when the male buckle 154a and the female buckle 154b are buckled, and due to the good buckling effect of the male buckle 154a and the female buckle 154b, the hanging lugs 140 can easily rotate at multiple angles on the connecting holes and cannot fall off the mask body 110, so that the included angles between the hanging lugs 140 and the connecting bodies 150 can be adjusted, the proper stress mode of ears can be flexibly selected, the wearing comfort of the mask is further improved, the hanging lug degree can be adjusted by matching with the adjusting buckle strips, and the mask can better adapt to the requirements of users with different face types and ear; the mask is made to accord with the facial characteristics of most users by the design concept of human engineering, the stress on the nose, the cheek, the chin and other parts of the user is minimum and uniform, and the whole face of the user can experience good comfort.

The mask specifications provided in this example are shown in table 1;

TABLE 1 gauze mask Specification

The mask effect provided by the present example is shown in table 2;

TABLE 2 novel mask effect

Therefore, the novel hydrogel electrostatic electret protective mask in the implementation has the advantages that the filter element is made of the novel electret electrostatic fiber composite material with high efficiency and low resistance, the air permeability and the comfort level are increased on the basis of increasing the filtering protective performance, the high-molecular hydrogel sealing strip is added on the outer edge of the mask, the mask is tightly attached to the face, the mask is soft and comfortable, the smooth and comfortable contact surface guarantees the light and comfortable wearing feeling, the airtightness and the protective effect of the mask are further enhanced, the local extrusion is effectively buffered and reduced, and the occurrence of the pressure damage condition is avoided.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.