CN211721962U - Antiviral mask with killing and inactivating functions - Google Patents

Abstract

An antiviral mask with killing and inactivating functions comprises a mask body, wherein the mask body at least comprises a salt-containing non-woven fabric layer, and the salt-containing non-woven fabric layer is a non-woven fabric layer containing sodium chloride crystal particles. The utility model discloses a gauze mask can not only kill and inactivate various common viruses at present, still can kill the bigger germ of volume, can improve gauze mask wearer's safety protection effect, helps the epidemic situation diffusion that the germ of control virus with the help of air propagation leads to and spreads. In addition, the mask of the utility model has no peculiar smell and no other toxic and side effects to human body, and has simple production process and low cost, thereby being suitable for mass rapid production.

Description

An antiviral mask with killing and inactivation function

technical field

The utility model relates to a medical mask, in particular to an antiviral mask with functions of killing and inactivating, belonging to the technical field of preventive medicine auxiliary consumables.

Background technique

At present, it is well known that diseases caused by virus infection are called viral diseases, such as pneumonia caused by new coronavirus infection and infectious atypical pneumonia. Viral diseases, as Class B infectious diseases, spread rapidly and mainly spread through three ways : First, direct transmission, such as the patient's sneezing, coughing, talking, etc. produce droplets to spread the virus; second, contact transmission, that is, droplets deposited on the surface of objects, after touching contaminated hands, and then contacting the mouth, nasal cavity, and eye mucous membranes to cause infection The third is aerosol transmission, that is, the patient's droplets are mixed in the air to form aerosols, which can lead to infection after inhalation. Given that such viral diseases are highly contagious, especially some new viruses, there is still a lack of relevant targeted research. Wearing masks has become an important measure to prevent the spread of the epidemic and avoid self-infection.

However, most of the current general-purpose masks can only play the role of isolating fine particles and antibacterial and bacteriostasis, and cannot effectively kill and inactivate viruses, especially the currently widely used disposable medical surgical masks, which have a total of only three layers. The outer and inner layers are water-blocking and anti-cracking protective layers, and the middle layer is the filter layer (filter element). Theoretically, the effective protection time is short, only 2-4 hours. , the protective effect decreased significantly after 2-4 hours. In addition, other masks such as antibacterial masks with inorganic nano antibacterial materials as functional components, graphene antibacterial breathable warm masks, nano silver wire air filter antibacterial masks, dustproof and antibacterial masks with chitosan multifunctional layer, filter layer Antibacterial masks that absorb chlorine dioxide and eucalyptus extracts, as well as antibacterial and bacteriostatic spunlace non-woven masks, etc. These masks can only inhibit the invasion of bacteria, but cannot kill and inactivate viruses, so it will bring potential initial and The risk of secondary infection and transmission, and some inventions use certain chemical and traditional Chinese medicine reagents as sterilization substances, which may cause respiratory discomfort to sensitive people.

Therefore, whether it is medical staff fighting day and night on the front line or ordinary people in thousands of households, there is an urgent need for a mask that can actively kill and inactivate viruses.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides an antiviral mask with a killing and inactivating function, which can kill and inactivate viruses and germs larger than viruses, greatly improving the protective performance of the mask and the It is safe and harmless to human body, has low cost, and is suitable for mass production.

The technical solution adopted by the utility model to solve the technical problem is as follows: an antiviral mask with killing and inactivation function, comprising a mask body, the mask body at least comprises a salt-containing non-woven fabric layer, and the salt-containing non-woven fabric layer is The non-woven layer is a non-woven layer containing sodium chloride crystal particles.

Compared with the prior art, an antiviral mask with killing and inactivation function of the present invention has at least one salt-containing non-woven fabric layer, when encountering viruses, the non-woven fabric containing sodium chloride crystal particles The sodium chloride crystals with sharp edges and corners in the layer will pierce the outer membrane of the virus and dehydrate it, and the virus in the high-salt environment will be killed and inactivated. Therefore, the protective performance and effect of the mask have been significantly improved. Furthermore, since the sterilization and inactivation additive used is the main component of edible salt, it belongs to the physical sterilization and inactivation method, which is different from the chemical methods such as bactericides used in the existing antibacterial masks, which is safer for the human body, has no peculiar smell and any other side effects. In addition, the antiviral mask of the present invention is also compatible with the existing production processes of various types of masks, has low cost, is suitable for mass production, and can better meet the needs of the epidemic period.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is a front view of an embodiment of the present invention.

2 is a cross-sectional view of a mask body in an embodiment of the present invention.

In the figure, 1. Ear hook thread, 2. Mask body, 3. Nose bridge clip, 4. Seam edge, 5. Non-woven fabric layer, 6. Salt-containing non-woven fabric layer, 7. Filter layer, 8. Skin-friendly cloth Floor.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments of the present invention are some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1:

In the embodiment 1 shown in Figures 1 and 2, a kind of antiviral mask with killing and inactivation function is processed by adding one layer of the above-mentioned salt-containing non-woven fabric layer 6 on the basis of the traditional disposable mask. The salt used in the salt-containing non-woven fabric layer 6 can be selected from edible salt or other materials in the form of crystalline particles and composed of sodium chloride (NaCl). In kind, the disposable mask of embodiment 1 is a traditional disposable medical surgical mask, but is not limited to this, the meaning of the disposable mask can be a disposable medical protective mask, a disposable medical surgical mask or a disposable non-medical mask Ordinary masks, etc. In terms of structure, first of all, masks are generally composed of a mask body 2 and an ear-hook wire 1. The ear-hook wires 1 are symmetrically connected to both ends of the mask body 2. The material of the ear-hook wire 1 needs to have good elasticity to ensure Wear firmly and not easy to fall off. And the edge of the mask body 2 is provided with edging, and the upper part is provided with a nose bridge clip 3 that can be bent and adjusted in shape at the position corresponding to the nose bridge of the human body. It can be bent and adjusted according to the shape of the bridge of the human nose, so that the edge of the mask body 2 is close to the face. The lower half of the mask body 2 of the disposable mask is usually folded inward, and the folded part can be opened to form a shape that matches the chin of the human body. Secondly, this embodiment 1 is provided with a salt-containing non-woven fabric layer 6, but it is not limited to this, and more layers can be selected according to needs, and the specific position is not limited. Preferably, in the order from outside to inside , the salt-containing non-woven fabric layer 6 is placed on the second layer of the mask, so as to more effectively besiege the incoming virus.

The mask body 2 of this embodiment 1 has four layers from the outside to the inside, which are respectively a non-woven layer 5, a salt-containing non-woven layer 6, a filter layer 7 and a skin-friendly cloth layer 8. The non-woven fabric layer 5 of the first layer is subjected to water repellent treatment and coloring on the outer surface in turn to form a water-resistant layer and a color layer respectively. The water-resistant layer is convenient for isolating pollutants. Light green, pink, light yellow, black or white to distinguish front and back or for aesthetic purposes. The salt-containing non-woven fabric layer 6 of the second layer is a non-woven fabric layer containing sodium chloride crystal particles, which is used to kill and inactivate viruses and larger-sized germs. The filter layer 7 of the third layer is used to isolate fine particles, germs and viruses. The fourth layer of skin-friendly cloth layer 8, which is close to the face, uses a skin-friendly cloth of soft material, which can improve wearing comfort.

The preparation process of the present embodiment 1 antiviral mask is as follows:

1. Non-woven layer 5: The raw materials such as polyester and polypropylene are bonded together by physical methods, such as forming a net by air flow or machinery, and spunlace, acupuncture or hot-rolling reinforcement to form a flat non-woven fabric. The outer side of the cloth layer is treated with water repellent and colored.

2. Salt-containing non-woven layer 6: It is formed by embedding sodium chloride crystal particles in the non-woven fabric, that is, a sodium chloride aqueous solution with a certain concentration and a certain temperature is prepared first, and its concentration range is 0.001% to 39.8%. The range is -20℃～103℃, and then spray the sodium chloride aqueous solution on the non-woven fabric, or directly immerse the non-woven fabric in the sodium chloride aqueous solution and then take it out, and then use the method of natural ventilation or high temperature drying The water in the non-woven fabric soaked with the sodium chloride solution is quickly evaporated, and the sodium chloride crystal particles are precipitated.

3. Filter layer 7: It is made of melt-blown cloth with excellent filtering and antibacterial function, and polypropylene and other raw materials are formed by melt-blowing method to form a polypropylene melt-blown material layer of flat cloth, which has certain filtering and shielding properties.

4. Skin-friendly cloth layer 8: It is made of ordinary sanitary gauze or non-woven fabric, made into a flat shape, soft in texture, does not irritate the skin, and can be in contact with the facial skin for a long time.

5. After the above-mentioned four-layer materials are made, put each layer on the production line in the order from outside to inside (or from inside to outside) to be pressed, stacked and compacted, and cut into a single mask.

6. Sew the nose bridge clip 3, and do crimp stitching (that is, the upper and lower parallel edges of the mask body 2 are formed with seam 4 respectively, and the nose bridge clip 3 is located in the upper seam 4).

7. Install the ear rope on the edge of the mask and compact the edge.

8. Sterilize, pack and inspect the masks.

Example 2:

An antiviral mask with killing and inactivation function and a manufacturing method thereof are processed and manufactured by adding at least one layer of salt-containing non-woven fabric layer 6 on the basis of traditional non-disposable mask. These non-disposable masks include N95 masks, KN95 masks, industrial dust masks, non-woven masks, cotton masks, gauze masks, PM2.5 masks, activated carbon masks, anti-fume masks and bamboo charcoal masks currently on the market. . Its concrete processing and manufacturing method is: first, according to the preparation method of the salt-containing non-woven fabric layer 6 as in Example 1, the salt-containing non-woven fabric layer 6 is manufactured; Secondly, according to the respective standard processing of the described non-disposable mask process to process the layers of materials required for the manufacture of these non-disposable medical surgical masks; then, in the order from the outside to the inside, the salt-containing non-woven fabric layer 6 is placed on the second layer; finally, according to the non-disposable According to the respective standard processing technology of disposable masks, the salt-containing non-woven fabric layer 6 and other layers of materials are processed into corresponding anti-virus masks, which gives these non-disposable masks the function of killing and inactivating viruses and germs.

The bacterial filtration efficiency of the anti-virus mask of the utility model is greater than or equal to 95%; the filtration rate of non-oily particles is greater than or equal to 30%; under the condition of air flow (30±2) L/min, the inhalation resistance does not exceed 49Pa, and the exhalation resistance does not exceed 29.4Pa; when the pressure difference △P for gas exchange on both sides of the mask is 49Pa/cm, the gas flow rate should be ≥264mm/s. And studies have shown that the mask is first soaked in a sodium chloride solution with a concentration of 29.03w/v% and naturally dried in an environment of 37 degrees Celsius, and the H1N1 virus loses activity after 5 minutes on the mask. The existing traditional disposable masks, including disposable medical surgical masks, only isolate the virus and cannot kill the virus. Therefore, if the outside of the traditional disposable mask is infected with the virus when wearing it, it is very likely to occur. If the hand touches the outer surface of the mask and is infected with the virus (for example, the mask needs to be adjusted from time to time during wearing to make it fit better on the face), if disinfection measures are not taken in time, there will be a risk of infection; on the other hand, traditional When disposable masks are discarded after use, it will bring potential risks of secondary infection and transmission, and the viruses contaminated on them will pose a threat to the health of others (such as cleaning staff). Especially when there is a virus or germ outbreak, the hospital will become a high-risk place. For medical workers and patients, the shortcomings that traditional disposable masks cannot disinfect viruses will be magnified, which will affect the health of medical staff and patients. It is particularly disadvantageous to contain the further spread of the epidemic. The utility model not only has the isolation function of the conventional mask, but also has the function of killing and inactivating viruses and germs. On the basis of the disposable masks and common non-disposable masks that are currently being used in large quantities and are also the most used, the method of adding salt-containing non-woven fabric layer 6 is adopted to make the non-woven fabric containing sodium chloride crystal particles. The layer is added to the mask to achieve the function of killing and inactivating the virus. Sodium chloride, the raw material for killing viruses, does not have any other ingredients, is safe for human body, and has no toxic and side effects. The salt-containing layer dissolves when it comes into contact with the virus aerosol, and crystallizes again during the drying process. The sharp, jagged edges and corners will pierce the outer membrane of the virus, dehydrating the virus and exposing it to a high-salt environment. It can also kill bacteria with a larger volume, improve the safety protection effect of mask wearers, and help control the spread of epidemics caused by airborne viruses. The utility model adopts a simple processing technology, is compatible with the existing production technology of disposable masks and non-disposable masks, and can be mass-produced quickly by adding a small number of procedures on the basis of the existing equipment of the mask manufacturer, which satisfies the general public's concern for their own health. protection needs.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications and equivalent changes made to the above embodiments according to the technical essence of the present invention are fall within the protection scope of the present invention.

Claims (9)

1. an antiviral mask with killing and inactivating function, comprising mask body (2), it is characterized in that: described mask body (2) at least comprises a salt-containing non-woven fabric layer (6), described The salt-containing nonwoven layer (6) is a nonwoven layer containing sodium chloride crystal particles. 2. a kind of antiviral mask with killing and inactivating function according to claim 1 is characterized in that: described mask body (2) is a disposable mask, and the disposable mask is respectively non-woven from outside to inside A cloth layer (5), a filter layer (7) and a skin-friendly cloth layer (8). 3. a kind of antiviral mask with killing and inactivating function according to claim 2, is characterized in that: described salt-containing non-woven fabric layer (6) is arranged on non-woven fabric layer (5) and filter layer (7) between. 4. A kind of antiviral mask with killing and inactivating function according to claim 2 or 3, characterized in that: the non-woven layer (5) is also provided with a water-repellent layer on the outer surface. 5. The antiviral mask with killing and inactivating function according to claim 4, wherein the filter layer (7) is a polypropylene melt-blown material layer. 6. An antiviral mask with killing and inactivating function according to claim 5, characterized in that: the skin-friendly cloth layer (8) is prepared from sanitary gauze or non-woven materials. 7. A kind of antiviral mask with killing and inactivating function according to claim 1, is characterized in that: described mask body (2) is a non-disposable mask. 8. a kind of antiviral mask with killing and inactivating function according to claim 7, is characterized in that: described non-disposable mask is N95 mask, KN95 mask, industrial dust mask, non-woven mask, Cotton masks, gauze masks, PM2.5 masks, activated carbon masks, oil fume masks or bamboo charcoal masks. 9. a kind of antiviral mask with killing and inactivating function according to claim 7 or 8, is characterized in that: described salt-containing non-woven fabric layer is arranged on the second from the outside to the inside of the non-disposable mask Floor.

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