KR102714857B1 - Transparent mask for easy face recognition with real-time body temperature measurement function - Google Patents

Abstract

The present invention provides a transparent health face mask that filters out yellow dust, fine dust, bacteria, viruses, droplets, etc., and in which the nose and mouth, etc. are easily visible so as to enable recognition of the face of the other party, wherein the fever status of the mask wearer can be easily recognized in real time, and the filtering performance of the mask is not reduced by moisture when the mask is worn for a long time, and the inhalation resistance is not increased when breathing, so as to provide a mask and its structure that enable more stable mask wearing by having different air channels and air flow control units for the air flows of inhalation and exhalation.

Description

Transparent mask for easy face recognition with real-time body temperature measurement function

The present invention relates to a transparent mask capable of real-time body temperature measurement and facial recognition, and more specifically, to a mask in which the nose and mouth, etc. are formed transparently to facilitate facial recognition in a face mask that blocks the inflow of fine dust, dirt, and droplets through the respiratory system, and which can measure the state of fever in real time due to infection with viruses or bacteria, etc., and easily check body temperature changes from the outside.

Face masks are used to prevent various diseases caused by yellow dust, dust, fine dust, bacteria, and viruses from entering the body through the respiratory system. The basic function of the mask is a filter, which filters out foreign substances in the air according to the size and shape of the target foreign substances. There are various methods for separating specific foreign substances in the air, such as passing them through a finely woven mesh or generating an electrostatic phenomenon to collect dust on a specific substance. In addition, there is a method of separating the substance from the air by utilizing the self-weight of fine dust through a cyclone phenomenon using the flow of air. Although there are various separation methods, additional configuration is required to implement such a function depending on the method.

Beneficial elements in the air must enter the body through the respiratory system. For example, an appropriate level of moisture is a factor that prevents the mucous membranes of the nose and throat from drying out, so it can be considered necessary for breathing. The filter function required by most masks is in the form of multiple layers of mesh membranes, but the target to be filtered or its size is determined by the tightness of each membrane or the material used. In addition, there are various standardized methods for measuring the performance of known filters. However, there is a problem that the filter function deteriorates when used for a long time. That is, when breathing, moisture, including body heat, is attached to the filter through the nose and mouth, and eventually such moisture makes the gap in the filter tighter and increases air resistance when breathing, so that when using the mask for a certain period of time, you feel discomfort such as difficulty breathing or a feeling of stuffiness due to a lack of necessary oxygen. This phenomenon of moisture condensing on the mesh of the filter can be aggravated as the temperature difference between inhalation and exhalation occurs near the mesh. In addition, in the structure of most masks, since the material of the mask structure itself uses filter material, the surface area of the filter material itself comes into contact with the face, and the surface area that allows air to pass through the filter function according to actual breathing is relatively reduced. Furthermore, the state of inhalation is a process of bringing air from the outside into the mask, and as the filter adheres to the face, the surface area of the filter used for actual filtering is further reduced. In addition, when initially used, the material of the filter is hydrophobic rather than hydrophilic, so it is strong against moisture itself and is not difficult to breathe, but problems occur over time. In terms of contact with the skin, since it does not contact along the three-dimensional flexible curve of the face, there is a problem that air is drawn in through the floating part of the interface between the face and the filter without passing through the filter during breathing, and the problem of losing its effectiveness in terms of the basic function of the actual mask also occurs.

In addition, the timing and time of wearing existing masks were mostly temporary situations, but in some cases, there are situations where continuous use is required in daily life, and masks are worn even during normal conversations. In such cases, inconvenience occurs in mutual conversations or problems arise in accurately recognizing the other person's facial expressions. To solve this problem, products that use transparent materials to make the nose and mouth visible to the other person have appeared. Most of them are made of transparent materials that make the nose and mouth visible and have separate filters placed on one side of the mask. The inside is coated to prevent fogging, etc. to solve the fogging problem that occurs with conventional transparent materials, and a separate anti-fogging film is attached. However, since transparent materials are used around the nose and mouth on the front, when components are installed to place filters on the chin or side to supplement the filtering function necessary for breathing, the weight increases due to the size of the filter part or auxiliary devices, increasing the overall weight of the mask. The increased weight reduces the feeling of wearing, and a more sturdy attachment method is needed to support the increased weight. In some cases, air containing the mask user's droplets may be discharged without passing through the filter in the form of a check valve, which may cause problems in preventing infection with viruses and other substances.

KR 10-2016-0014964 A

The present invention is to solve the above-mentioned problems, and provides a method for manufacturing a mask and a structure for providing a transparent health face mask that filters at least yellow dust, fine dust, bacteria, droplets, viruses, etc., and in which the nose and mouth, etc. are easily visually visible so as to enable recognition of the face of the other party, wherein the filtering performance of the mask is not reduced by moisture when worn for a long time, and the health face mask can recognize the fever status of the wearer in real time by various methods including a visual method while worn. However, this is only an example, and the purpose of the present invention is not limited thereto.

An example according to one embodiment for achieving the above-described object of the present invention is a health face mask for blocking the inflow of fine dust, dust, and droplets through the respiratory organ, wherein the front of the mask is formed along the contour of the face, such that the nose and mouth are formed of a transparent material for easy facial recognition, at least two filter receiving portions for accommodating filters for filtering foreign substances in the air, each filter having a hole of a predetermined size formed on one side of the front of the mask, at least two filters disposed in the filter receiving portions, and the filter receiving portion has a unidirectional airflow control portion for allowing air flowing into and exhausting air to flow in and out through different filters, and at least one edge of the front of the mask is provided with an extension portion for fixing the mask to the face of the wearer of the mask, and at least one temperature sensing portion disposed on one inner side of the extension portion for measuring in real time the fever state of the human body, particularly the head, due to infection with a virus or bacteria, and a temperature display portion that visually changes when the sensed temperature of the temperature sensing portion is within a set range, and an edge of the front of the mask that comes into contact along the contour of the user's face and includes hydrogel, A transparent face mask for health purposes is provided, comprising a contact portion made of one or more of adhesive, polyethylene foam, acrylic foam, or rubber.

In addition, the extension part may be a band at least partially made of elastic parts that can be adjusted in length to elastically hang the mask on the wearer's face, such as the ear or head, or an adhesive part having an adhesive component on the surface to prevent the mask from coming off by being adhered to a specific part of the face, and the filter may be made of a material selected from the group consisting of polyamide resin, polysulfone resin, polyurethane resin, polyvinylidene difluoride resin, polymethyl methacrylate resin, polystyrene resin, polyacrylic acid resin, and mixtures thereof, and the front part of the mask may be made of a transparent polymer film selected from the group consisting of acrylonitrile-butadiene styrene (ABS), crystalline polyethylene (APET), styrene acrylonitrile butadiene (SAN), polyethylene terephthalate (PET), and polyethylene, and one surface of the mask may be coated with a benzophenone-based, benzotriazole-based, salicylate-based, cyanoacrylic-based, oxanilide-based, A protective film comprising at least one UV-blocking or absorbing material selected from the group consisting of hindered amine-based and metal complex salt-based light stabilizers may be formed, and a hydrophobic surface coating layer for preventing moisture and fogging may be formed on at least a portion of the inner surface of the front surface of the mask.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims and detailed description of the invention.

According to the present invention, in situations where a health mask must be worn for a long time during various indoor and outdoor physical activities depending on various situations, the state in which the body temperature is generated due to various factors can be continuously observed by detecting changes in body temperature by contact and displaying a specific mark within a set temperature range, so that others can easily recognize the state of the fever of the mask wearer in real time without a separate measurement or device from a part of the mask worn. In addition, due to the characteristics of transparent masks, the surface area of the filter is relatively small, making it difficult to breathe, or problems such as difficulty in breathing due to the performance of the filter being reduced by moisture or temperature differences generated during the breathing process of the wearer due to long-term use, discomfort due to lack of oxygen, health problems, etc. can be prevented, and the above-mentioned inconveniences when wearing a transparent mask with easy facial recognition for a long time can be resolved.

The effects according to the present invention are not limited to the above-described contents, and may include all effects that can be inferred by referring to the description of the invention and the contents of the drawings.

Figure 1 is a drawing schematically illustrating the side view of the face and the locations of major functional parts while wearing a transparent mask according to the present invention and air flow.
FIG. 2 is a schematic diagram illustrating the shape of a filter of a first air channel according to one embodiment of the present invention, a filter receiving portion, and a flow of air by inhalation, in plan and projection form.
FIG. 3 is a schematic drawing showing the structure of a filter and a filter receiving portion of a first air channel according to one embodiment of the present invention as viewed from the rear.
FIG. 4 is a schematic drawing showing the form of air flow in open and closed states in a one-way air flow control unit of a first air channel according to one embodiment of the present invention in cross-sectional and perspective views.
FIG. 5 is a cross-sectional view of a filter and a filter receiving portion of a first air channel according to one embodiment of the present invention, in which a membrane of a one-way air flow control portion is opened by inhalation to allow air to flow inward, and a schematic drawing of the filter and the filter housing.
FIG. 6 is a perspective view schematically showing the filter shape of a second air channel according to one embodiment of the present invention and the membrane of the filter and the one-way air flow control unit being opened by exhalation so that the air inside flows to the outside.
FIG. 7 is a cross-sectional view schematically showing the filter shape of a second air channel according to one embodiment of the present invention and the thin film of the filter and the one-way air flow control unit being opened by exhalation so that the air inside flows to the outside.
FIG. 8 is a cross-sectional view showing a rough example of an extension section, a temperature sensing section, and a temperature display section according to one embodiment of the present invention.

The present invention can be modified in various ways and has various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a specific description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

In the following examples, terms such as first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terms used in the following examples are only used to describe specific embodiments and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In the following examples, it should be understood that the terms "comprise" or "have" are intended to specify that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. In addition, in the drawings, the sizes of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and the present invention is not necessarily limited to what is shown.

An example according to one embodiment of the present invention is a health face mask that blocks the inflow of fine dust, dust, and droplets through the respiratory organ, comprising: a front part of the mask in which the nose and mouth, etc. are formed of a transparent material for easy facial recognition, the edges are formed along the contour of the face, and the nose and mouth are formed at a predetermined distance apart; at least one filter disposed on one side of the front part of the mask; a filter receiving part disposed on one side of the front part of the mask and having a hole of a predetermined size formed to receive the filter; at least two air channels disposed near the receiving part of the filter so that external air flowing into the inside of the front part of the mask and air discharged to the outside pass through different filter regions; a unidirectional air flow control part disposed on one side of the filter and controlling air flow in the air channel to flow in one direction; at least two extension parts disposed at an edge of at least one side of the front part of the mask and having symmetrical positions to fix the mask to the face; at least one temperature sensing part for measuring the fever state of the head in real time on one side of the inner side of the extension part; A transparent face mask for health is provided, characterized in that it comprises a temperature display section that changes visually when the sensed temperature is within a set range, and a contact section made of one or more materials including hydrogel, adhesive, polyethylene foam, acrylic foam, rubber, or silicone so as to come into contact along the contour of the user's face along the edge of the front part of the mask.

In one example, the filters may be separately arranged in front or behind the control unit for airflow in opposite directions, so that the functions of air intake and exhaust into the front of the mask can be distinguished. It is also possible to control the flow of different airflows to occur along mechanically separated air channels for the same single filter. Preferably, at least two airflow channels are provided so that the channels are opened by the wearer's exhalation and inhalation to allow airflow in one direction.

In addition, the extension part can be adjusted in length to elastically hang the mask on the wearer's face, ears, head, etc., and fix the front part of the mask, and may be a band at least partially made of elastic parts, or may be composed of an adhesive part having an adhesive component on the surface so that the mask is adhered to a specific part of the face and does not come off, and may further include a connecting part for connecting the band to one side of the front part of the mask.

The above filter may be composed of a material selected from the group consisting of polyamide resin, polysulfone resin, polyurethane resin, polyvinylidene difluoride resin, polymethyl methacrylate resin, polystyrene resin, polyacrylic acid resin, and mixtures thereof, and the front part of the mask may be composed of a transparent polymer film, chitosan, a transparent silicone material, etc. selected from the group consisting of acrylonitrile-butadiene styrene (ABS), crystalline polyethylene (APET), styrene acrylonitrile butadiene (SAN), polyethylene terephthalate (PET), and polyethylene, and a protective film including one or more UV-blocking or absorbing materials selected from the group consisting of benzophenone-based, benzotriazole-based, salicylate-based, cyanoacrylic-based, oxanilide-based, hindered amine-based, and metal complex salt-based light stabilizers may be formed on one surface of the mask, and moisture and fogging prevention may be provided on at least a portion of the inner surface of the front part of the mask. A hydrophobic surface coating layer can be formed.

The above extension is preferably positioned at a position where the movement of facial muscles or jaw joints, etc. on the face is minimized. For example, the position of the extension is preferably at a point near the middle of the extension line between the eyes and ears. This part is also a position that is usually easy to use for non-contact body temperature measurement. One side of the extension may further be provided with a hole or a protrusion for hanging a hook on the neck, head, and ears. An adhesive part made of an adhesive component that can be temporarily attached to the skin may be formed on the inside of the extension so that the mask can be fixedly installed on the face without a separate hook. In this case, when the mouth moves significantly, such as during strenuous exercise, singing, or lecturing, a band or string may be additionally used for auxiliary fixation. In normal conversation or jaw movement, the mask can be fixed to the face by the adhesive force of the adhesive part at the corresponding location. In addition, the temperature sensing unit may be arranged on the inner side of the above-mentioned extension, so that it is in continuous contact with the face in real time, and can easily sense the change in body temperature due to fever in a place where the movement of facial muscles or joints is relatively low. Preferably, it is arranged on each side of the above-mentioned extension, so that there is a case where the fever is different between the left and right brain, so that the level of fever can be observed more accurately. A thermosensitive chemical cell can be used to sense the temperature. This can visually display the fever status according to the body temperature after a certain period of time after contacting the skin. For example, the fever status can be visually displayed in three colors that typically indicate a danger signal, such as green or blue at 36.5℃ to 37℃, yellow or orange at 37.1℃ to 37.5℃, and red at 37.5℃ or higher. This is because, in the case of infections caused by viruses or contagious diseases such as influenza, symptoms such as fever, cough, sore throat, headache, muscle pain, and nausea, vomiting, and diarrhea in the gastrointestinal tract are usually expressed in a rough order, so that changes due to fever can be recognized in real time at an early stage, making it easy to observe the fever status of a person in a multi-purpose facility or a conversation partner. In other words, in a situation where wearing a mask is mandatory in multi-purpose facilities such as daycare centers, kindergartens, schools, nursing homes, hospitals, various event halls, exhibition halls, airports, and public transportation in order to prevent infection and transmission by viruses, it is also cumbersome for users to attach a separate means for measuring body temperature to their skin. Therefore, in general situations where masks are worn, it is desirable to easily check the fever status by self-diagnosis or by others in close proximity using a means for measuring body temperature installed on at least one side of the mask. This embodiment deals with visually displaying changes in temperature, but it can be modified and applied to various embodiments that sense and display changes caused by pathogens such as abnormalities and lesions of the body, other viruses, or bacteria.

In addition, at least one magnet and a magnetic body are arranged on one side of the extension, or magnets with different polarities are arranged, so that when the mask is not in use, the two extensions are attached by magnetic force, thereby preventing contamination from the outside and facilitating storage.

Typically, the contact surface with the skin can be maintained in continuous contact without side effects with the skin by using medical hydrogel, etc. In this case, the temperature sensing part and the adhesive part can be configured as an integrated unit so that the function of fixing the front part of the mask to the face can be simultaneously provided. The front part of the mask made of a transparent material can be configured so that the temperature of the temperature sensing part displays a specific color in a temperature range set for each section. A thermosensitive ink composition can be used as a method or material for indicating a change in color according to temperature, and as in the example above, ionic pigments, binder resins, organic solvents, etc. as main ingredients can be separated and arranged separately, or arranged separately in a concentric circle, or arranged in a mixed form so that different colors are expressed in different temperature categories according to a predetermined mixing ratio so that different colors appear according to at least three temperature distributions.

The two channels for the above-mentioned different airflows are easily opened by the membrane that can be installed in the one-way airflow control unit by the internal airflow, and when there is no change in the airflow or pressure, the membrane restores its original shape by its own elasticity, so that the airflow can be controlled. In the case of inhalation, when the internal pressure decreases at that time, the membrane at the entrance of the first channel generates a moment in the direction of the inside, so that the outside air easily enters, passes through the filter, and airflow occurs between the front part of the mask and the face, and finally the air flows to the nose or mouth. At this time, the membrane of the second channel maintains a closed state while the internal pressure is low and the external atmospheric pressure is high. Therefore, the outside air is introduced through the first channel. On the other hand, in the case of exhalation, when the internal air pressure increases, the membrane of the first channel maintains a closed state by its own elasticity, and the membrane of the second channel opens. Therefore, the exhaled air passes through the filter through the opened membrane and is discharged to the outside through the opened second channel. In this way, the airflow during inhalation and exhalation is introduced and discharged through different air channels, respectively. Since the air flows in one direction, the surrounding temperature of the filter changes little, so moisture or dew formation is suppressed, and the filter function is maintained for a long time. In the case of exhalation, there is a risk that the virus will be discharged together with droplets in the exhalation of an infected person, so the filters of the two channels can be arranged to have different functions, such as filtering droplets.

A more detailed explanation is provided using drawings 1 to 8 below.

1 and 2 are illustrations according to one embodiment of the present invention, a mask (100) in which the nose and mouth, etc. are made of a transparent material so that the relevant parts are easily recognized as a face in a health face mask that blocks the inflow of fine dust, dust, and droplets through the respiratory organ, the mask having a front part (110) of the mask in which the edges are formed along the contour of the face and the nose and mouth are formed at a predetermined interval, a filter (150) for filtering at least one foreign substance in the air, which is arranged on one side of the front part (110) of the mask, a filter receiving part (120) in which a plurality of holes of a predetermined size are formed and which receives the filter, and a one-way air flow control part (160) arranged in the filter receiving part (120) so that the external intake (Breathing intake, hereinafter referred to as BI) air that is drawn into the front part of the mask and the air that is discharged to the outside according to breathing (Breathing out, hereinafter referred to as BO) flow through different filter areas, the one-way air flow control part having The airflow control section shows a schematic feature controlled by the airflow inside the front part of the mask that occurs during breathing. In the mask viewed from the side, the position of the extension section (330) and the protrusion section (400), temperature sensing section (320), and temperature display section (310) are arranged in the extension section area. The above-mentioned external intake air roughly shows the positions of the first air channel (130) and the second air channel (230).

The cross-sectional structure of the first air channel (130) shown in FIG. 2 is characterized by a filter receiving portion (120) in which a zigzag-folded filter (150) is accommodated, and a one-way air flow control portion (160) formed of a plurality of flexible thin films (165). The thin films (165) are bent inward by the suction force due to inhalation, and a first air channel is formed along the opened gap, thereby creating a BI path. The thin films (165) are controlled so that the first air channel is closed by their own weight or inherent elastic force when there is no air flow, so that the one-way air flow control is easy. That is, only when air flow due to inhalation occurs and the air pressure inside the front part (110) of the mask is lowered, the thin films (165) are bent, allowing outside air to flow inside. Conversely, when airflow inside the front part of the mask occurs due to exhalation and the pressure increases or decreases, or when there is no airflow, it remains closed.

FIGS. 3 to 5 schematically illustrate the side surface of the first air channel (130) and illustrate the state in which the flexible membrane described above opens and closes by inhalation. As illustrated in the drawings, the first air channel is formed so that the air path faces rearward when viewed from the side so that it can be introduced from the back of the face. This has the effect of preventing foreign substances or droplets in the external air from being directly introduced even when a conversation or wind blows. A support member (170) supporting a plurality of membranes (165) is arranged integrally with the front surface of the mask or in a module form. Preferably, it can be formed integrally with the front surface of the mask by a mold using the same material as the front surface of the mask. In another embodiment, it can be arranged integrally with the first filter (150) and the first filter-shaped support member (180) that maintains the shape of the filter. The flexible membrane described above can be arranged so that the bending direction is the same as that of FIG. 4 or FIG. 5, but rotated 90 degrees. A schematic diagram showing how the external air pressure decreases as the mask wearer breathes in, causing the above-mentioned thin film to bend inward and their edges to contact each other, thereby changing the air channel from a closed state to an open state is shown in Figure 5.

FIGS. 6 and 7 are schematic drawings of the general shape of the second filter (250) for forming the second air channel (230) and the arrangement relationship of the second shape support member (280) for supporting the outer shape of the filter (250) and the one-way air flow control member. When the air pressure inside the front of the mask increases due to the exhalation of the mask wearer or the air flow occurs in the direction of the thin film, the second air channel causes the thin film to bend outward while in an unfolded state due to its own elasticity, thereby allowing the air inside to be discharged to the outside. In other words, the air inside moves to the outside, but the thin film controls the air flow in one direction so that the outside air cannot flow in. As a result, the second air channel allows the heat, moisture, and breathed air to be discharged to the outside due to the exhalation of the wearer. As described above, the thin film can be installed by rotating 90 degrees while maintaining the same bending direction.

Among the elements constituting the first and second air channels, the filters described above have different main functions, and therefore can be configured to have a structure and performance of a filter optimized for the function. For example, the filter of the first air channel can be configured to implement the function of a filter for removing foreign substances in the air that is drawn in from the outside in various ways according to the size or shape of the foreign substances, dust collection or filtering method, in 3 to 4 layers as a normal non-woven filter. This is substantially the same as the structure of a filter of a normal disposable health mask, and additionally, odor filtering such as activated carbon can be added or other functionality can be provided. Furthermore, since the shape of the filter has a structural characteristic that does not apply external force or come into contact with the skin, various filter functions can be implemented. In addition, the second air channel can be used by changing the characteristics of the filter to focus on the function of filtering so that droplets or moisture are not collectively discharged to the outside without the function of filtering foreign substances in the air. Since the air being inhaled usually has low moisture content and the air being exhaled usually has more moisture content, it is possible to design a filter that easily absorbs moisture and dries naturally so that droplets do not directly leak out to the outside. The structural feature of the filter according to the present invention is that it is folded in a zigzag shape like the filter (150, 250) in FIGS. 5 and 6, so that it is preferably configured in a shape as shown in the figure in order to solve the problem of basic resistance when the air required for breathing passes through the filter as a whole. Since the filter usually has an opaque characteristic in the overall mask, such a shape is preferable in order to cover the face to a minimum when viewed from the front.

The two channels (130, 230) for the above-mentioned different air flows can be easily opened by the membrane that can be installed in the one-way air flow control unit (160, 260) by the internal air flow, and when there is no change in the air flow or pressure, the original shape can be restored by the inherent elasticity to control the air flow. In the case of inhalation, when the internal pressure is lowered at that time, the membrane at the entrance of the first channel generates a moment in the direction of the inside, so that the outside air easily enters and passes through the filter, and air flow occurs between the front part of the mask and the face, and finally the air flows to the nose or mouth. At this time, the membrane of the second channel maintains the closed state while the internal pressure is low and the external atmospheric pressure is high. Therefore, the outside air is introduced through the first channel. On the other hand, in the case of exhalation, when the internal air pressure increases, the membrane of the first channel maintains the closed state by the inherent elasticity, and the membrane of the second channel opens. Therefore, exhaled air passes through the open second channel, passes through the filter, and passes through the open membrane to be discharged to the outside. As a result, the air flow in inhalation and exhalation is respectively introduced and discharged through different air channels. Since the air flows in one direction, the surrounding temperature of the filter changes little, so that moisture or dew formation is suppressed, and the filter function is maintained for a long time. In the case of exhalation, there is a risk that viruses may be discharged together with droplets in the exhalation of an infected person, so the filters of the two channels can be arranged and used to have different functions, such as filtering droplets. As an example of different functions, the state of the outside air can be sensed at the air inlet, and the abnormality inside the body of the mask wearer can be sensed separately at the exhalation where the air is discharged, and this can be displayed in various forms.

In one example, the filters may be separately arranged in front or behind the control unit for airflow in opposite directions, so that the functions of air intake and exhaust into the front of the mask can be distinguished. It is also possible to control the flow of different airflows to occur along mechanically separated air channels for the same single filter. Preferably, at least two airflow channels are provided so that the channels are opened by the wearer's exhalation and inhalation to allow airflow in one direction.

The above filters can be formed by overlapping a plurality of filters having different sizes and performances in the form of non-woven fabrics depending on the size of the filter target required or the characteristics of the foreign substances depending on the situation. The material of these filters can be composed of a material selected from the group consisting of polyamide resin, polysulfone resin, polyurethane resin, polyvinylidene difluoride resin, polymethyl methacrylate resin, polystyrene resin, polyacrylic acid resin, and mixtures thereof. In addition, the material constituting the front part of the mask (110) is based on a material having transparent characteristics and can be manufactured with partially different transparency depending on the application. The types of these materials can be composed of a transparent polymer film selected from the group consisting of acrylonitrile-butadiene styrene (ABS), crystalline polyethylene (APET), styrene acrylonitrile butadiene (SAN), polyethylene terephthalate (PET), and polyethylene, chitosan, a transparent silicone material, etc.

A protective film including one or more UV blocking or absorbing substances selected from the group consisting of benzophenone-based, benzotriazole-based, salicylate-based, cyanoacrylic-based, oxanilide-based, hindered amine-based, and metal complex salt-based light stabilizers can be formed on one surface of the mask, and a hydrophobic surface coating layer for preventing moisture and fogging can be formed on at least a portion of the inner surface of the front surface of the mask.

FIG. 8 is a cross-sectional view of at least two extensions (330) arranged at least on one side edge of the front face (110) of the mask to fix the mask (100) to the face of the wearer of the mask, and a cross-sectional rough shape of a temperature sensing unit (320) and a temperature display unit (310) that can be included therein to sense and visually display a change in body temperature. In the embodiment, the positions are arranged at positions where movement of facial muscles or jaw joints, etc. on the face (900) is minimized, which is to minimize problems that occur in temperature measurement or fixing of the mask due to movement of muscles or joints, etc. in the face. For example, the position of the extension (330) is preferably a point near the middle of the extension line of the eyes and ears. This part is also a position that is usually easy to use for non-contact body temperature measurement.

In addition, the temperature sensing unit (320) may be placed on the inside of the above-mentioned extension (330), so that it is in continuous contact with the face in real time, and it is possible to easily sense the change in body temperature due to heat generation in a place where the movement of facial muscles or joints is relatively low. Preferably, it is placed on each side of the above-mentioned extension, so that the heat generation level can be observed more accurately since there is a case where the heat generation between the left and right brains is different. Temperature sensing and display can be performed simultaneously as needed. A thermosensitive chemical cell can be used to sense the temperature. This can visually display the heat generation status according to the body temperature after a certain period of time after contacting the skin. For example, the temperature display unit (310) can be configured in a concentric circle shape as shown in FIG. 8 so that the heat generation status can be visually displayed in three colors that typically indicate a danger signal, such as green or blue at 36.5°C to 37°C, yellow or orange at 37.1°C to 37.5°C, and red at 37.5°C or higher. The red color, which is a temperature range with a poor visual condition, is indicated by a doughnut shape on the outside, and the green or blue color, which is a stable condition, is indicated by a small circle in the center, so that the other party can more easily check the body temperature condition during a conversation. The temperature sensing unit (320) described above is positioned close to the skin, and a means for maintaining continuous contact with the skin is required at the bottom, and this can be positioned so that the adhesive unit (350) described above can have the corresponding function. This is because in the case of a contagious disease such as an infection by a virus or the flu, symptoms such as fever, cough, sore throat, headache, muscle pain, and nausea, vomiting, and diarrhea of the gastrointestinal system often occur in a rough order, so that changes due to fever can be recognized in real time at an early stage, so that the fever condition of the other party in a multi-facility or during a conversation can be easily observed. That is, in a situation where wearing a mask is mandatory in public facilities such as daycare centers, kindergartens, schools, nursing homes, hospitals, event venues, exhibition halls, airports, and public transportation in order to prevent infection and spread of viruses, it is cumbersome for users to attach a separate means of measuring body temperature to their skin. Therefore, in general situations where a mask is worn, it is desirable to easily check for fever by self-diagnosis or by having others nearby easily check for fever using a means of measuring body temperature installed on at least one side of the mask.

One side of the above extension (330) may further be provided with a hole or a protrusion (400) for hanging a hook on the neck, head, and ears. An adhesive part (350) made of an adhesive component that can be temporarily attached to the skin may be formed on the inner side of the extension (330) so that the mask (100) can be fixedly installed on the face without a separate hook. In this case, when the mouth moves significantly, such as during strenuous exercise, singing, or lecturing, a band or string may be additionally used for auxiliary fixation. In normal conversation or jaw movement, the mask (100) can be fixed to the face by the adhesive force at the adhesive part (350) at the corresponding location. In addition, the extension part may be a band at least partially made of elastic parts that can be adjusted in length to elastically hang the mask on the wearer's face, such as the ear, head, etc., or may be composed of an adhesive part having an adhesive component on the surface to adhere to a specific part of the face and prevent the mask from coming off. The adhesive part is preferably made of a material such as a medical hydrogel. In addition, at least one magnet and a magnetic body (not shown) may be arranged on one side of the extension part (330), or magnets with different polarities may be arranged so that when the mask is not in use, two extension parts (330) are attached by magnetic force to prevent contamination from the outside and facilitate storage. The magnetic body described above has the above-described effect when at least one of the materials of the protrusion part (400) in FIG. 8 is composed of a magnet.

Typically, the contact surface with the skin can be maintained in continuous contact without side effects with the skin by using medical hydrogel, etc. In this case, the temperature sensing part (320) and the adhesive part (350) are configured as an integral part so that they can simultaneously have the function of fixing the front part (110) of the mask to the face (900). In the example of Fig. 8, it is preferable that the adhesive function for contacting the skin described above be separated and have a certain thickness so that it can be easily reused, such as by washing with water. The temperature sensing part (320) can be configured to display a specific color in a temperature section set for each section through the transparent mask front part (110). As a method or material for indicating a change in color according to temperature, a thermosensitive ink composition can be used, and as in the example above, different colors can be displayed according to at least three temperature distributions. The composition can be made by separating and arranging the main ingredients, such as ionic pigments, binder resins, and organic solvents, so that different colors can be expressed in different temperature categories according to a predetermined mixing ratio, or by arranging them separately in a concentric circle, or in a mixed form.

The front part of the mask (110) may be configured to include a contact part made of one or more materials including hydrogel, adhesive, polyethylene foam, acrylic foam, rubber, or silicone so as to come into contact along the contour of the user's face along the edge. The front part of the mask is configured of the above-mentioned transparent material along the contour of a basic standard or average face, and the part that directly comes into contact with the skin is made of a soft tissue so as to be more flexible than the front part of the mask with the material that constitutes the contact part. That is, they have different ductility, flexibility, etc. The front part of the mask and the contact part have different material characteristics, but can be manufactured as an integral part by double injection.

Although the present invention has been described with reference to limited embodiments in this specification, various embodiments are possible within the scope of the present invention. In addition, although not explicitly described in this specification, equivalent means to the embodiments are also incorporated into the present invention. Therefore, the true scope of protection of the present invention should be determined by the claims below.

100: Mask 110: Front of mask
120: Filter receptacle 130: Inhalation, BI, (1st air channel)
150: 1st filter 160, 260: One-way air flow control unit
165, 265: Flexible membrane 170, 270: Membrane support
180: 1st filter-shaped support 230: exhalation, BO, (2nd air channel)
250: Second filter 280: Second filter shape support
310: Temperature display unit 320: Temperature sensing unit
330: Extension 350: Adhesive
400: protrusion 900: face, facial area

Claims (12)

For transparent face masks for health purposes,
A front portion of the mask formed to correspond to the outline of the face of the mask wearer, wherein an area corresponding to the lower portion of the face, including the nose and mouth of the mask wearer, is formed with a transparent material so as to enable recognition of the lower portion of the face;
A filter receiving portion formed in the form of a hole of a predetermined size on one side of the front of the mask;
A filter disposed in the above filter receptacle and filtering out foreign substances in external air sucked into the inside of the front part of the mask from the outside;
A first air channel communicating with the filter receptacle and drawing the filtered outside air into the interior of the front part of the mask, a second air channel formed in the front part of the mask and discharging the inside air of the front part of the mask to the outside, and a one-way air flow control unit blocking the inside air from being discharged to the outside through the filter receptacle;
At least one temperature sensing unit positioned on the inner side of the front of the mask and measuring the body temperature of the wearer of the mask; and
A temperature display unit that induces a visual state change when the body temperature measured by the temperature sensing unit falls within a preset temperature range;
The first air channel includes an inlet open to allow the outside air to be sucked in, and an outlet open to allow the outside air sucked in through the inlet to be discharged into the interior of the front part of the mask.
The above suction port opens toward the rear in the opposite direction when the mouth of the mask wearer faces forward.
The above one-way air flow control unit,
A plurality of first flexible membranes arranged adjacent to each other to close the inlet of the first air channel, but opening the inlet of the first air channel when bent by the suction force due to inhalation; and
A transparent face mask for health purposes, further comprising a plurality of second flexible membranes arranged adjacent to each other to close the second air channel, but opening the second air channel when bent by pressurization of the internal air.
In the first paragraph,
A transparent face mask for health purposes, further comprising two extensions extending from each side edge of the front portion of the mask so as to face each other and fixing the front portion of the mask to the face.
In the first paragraph,
A transparent face mask for health purposes, further comprising a contact portion arranged along the inner edge of the front portion of the mask and bringing the front portion of the mask into contact with the face.
In the first paragraph,
The front part of the above mask is,
A transparent face mask for health, characterized in that it has selective visible light transmittance and is formed of at least one selected from the group consisting of a transparent polymer film selected from the group consisting of acrylonitrile-butadiene styrene (ABS), crystalline polyethylene (APET), styrene acrylonitrile butadiene (SAN), polyethylene terephthalate (PET), and polyethylene, chitosan, and a transparent silicone material.
delete In the first paragraph,
A transparent face mask for health purposes, further comprising a filter shape support member for fixing the filter so that it is folded in a zigzag direction.
In the first paragraph,
A transparent face mask for health purposes, comprising at least one UV blocking or absorbing material selected from the group consisting of benzophenone-based, benzotriazole-based, salicylate-based, cyanoacrylic-based, oxanilide-based, hindered amine-based, and metal complex salt-based light stabilizers, and further comprising a protective film disposed on the surface of the front surface of the mask.
In the second paragraph,
A transparent face mask for health purposes, wherein two facing extensions are magnetically attached when the mask is removed from the face.
In the first paragraph,
The above temperature sensing unit includes a thermosensitive chemical cell,
A transparent face mask for health purposes, further comprising an adhesive portion positioned between the temperature sensing portion and the surface of the face to adhere the temperature sensing portion to the surface of the face.
In the first paragraph,
The above temperature display section,
A transparent face mask for health purposes comprising a thermosensitive ink composition and having a plurality of temperature zones according to body temperature.
In the first paragraph,
A transparent face mask for health purposes, further comprising a hydrophobic surface coating layer coated on the inner surface of the front surface of the mask to prevent moisture or fogging.
In the third paragraph,
The above contact portion has different ductility from the front portion of the mask,
A transparent face mask for health purposes, wherein the front part of the mask and the contact part are joined by double injection.