KR20220042964A - Lip-view Mask and Method for Preparing Same - Google Patents

Abstract

The present invention relates to a lip-view mask showing the shape of the lips, and a manufacturing method thereof. According to the present invention, the lip-view mask comprises a main body including cross-exposed parts in which a plurality of transparent parts and filter parts are alternately disposed, and a fixing part fixing the main body to a user's face. In addition, the manufacturing method of the lip-view mask is performed by a method of arranging a plurality of transparent films at predetermined intervals and spraying a polymer solution on the transparent films, or a method of disposing a filter on a transparent film and compressing the filter with a wire. According to the present invention, the lip-view mask can enable other people to check the shape of the user's mouth even when the user wears the mask, can less damage to a filter function, can minimize fogging occurring on a transparent film, and can be economically manufactured through a simple process.

Description

Lip-view Mask and Method for Preparing Same

The present invention relates to a lip-view mask capable of confirming the shape of the mouth and a method for manufacturing the same, and more particularly, it is possible to check the shape of the user's mouth even when worn, while reducing the damage to the filter function, and minimizing fogging occurring in the transparent film. It relates to a lip view mask that can be used, and a method for economically manufacturing it through a simple process.

Masks are used to block the transmission of viruses or pathogens through the respiratory tract of the human body, or to block harmful dust or fine dust from entering the human body through the respiratory tract. Such a mask is mainly composed of a filter made of a fabric or non-woven material, and may be configured as a functional type by adding a function according to the purpose.

The mask is worn to cover the user's respiratory tract, that is, the nose and mouth, and is made of an opaque filter material. In particular, since the shape of the mouth is very important for speech language, sign language, and oral communication, which are the means of communication for the deaf, limiting the exposure of the mouth part due to the mask causes serious difficulties in communication of the deaf person.

In case of repeatedly putting on and taking off the mask for communication while wearing the mask, there is a problem that not only is it cumbersome, but also the contamination of the mask proceeds quickly. In addition, in a situation where wearing a mask is compulsory due to the recent coronavirus (COVID-19), it is impossible to even take off the mask for communication.

Moreover, since it is difficult to identify a person by recognizing a face shape while wearing a mask, in some cases, it may be a threat to others, and there is a concern that it may be used for crime. In particular, in the United States, where crime awareness is high, there is a tendency to be reluctant to wear a mask despite COVID-19 due to poor awareness of face-covering masks.

In an effort to solve this problem, Korean Patent Application Laid-Open Nos. 10-2005-0042986 and 10-2016-0014964 disclose that the front part of the mask is made of a transparent material so that the user's expression can be seen, so that the user can wear it even when wearing it. Disclosed is a transparent mask that can detect facial expressions. The transparent mask of the above technologies has a structure where most of the mask body is made of a transparent material and the filter is located at the edge of the body, so it is easy to check the mouth shape and expression, but the filter function is damaged because most of the filter is removed There was a problem.

Moreover, there was a disadvantage in that an anti-fog layer must be separately applied on the transparent film in order to prevent fogging from occurring in the transparent film portion. In addition, in the case of using welding, stitching, and adhesive as in the conventional method to bond the transparent part and the filter part, a long time, high cost, and complicated process are required to manufacture the mask, so there is a problem in that productivity is reduced.

In this situation, as a mask having a transparent part so that the shape of the user's mouth is exposed even when worn, there is an increasing demand for a mask that has less damage to the filter function and can minimize fogging occurring in the transparent part. In addition, in order to manufacture such a mask in a cost-effective manner, it is necessary to develop a simple and economical manufacturing method.

An object of the present invention is to provide a lip view mask that can check the shape of the user's mouth even when worn, has less damage to the filter function, and can minimize fogging that occurs on a transparent film.

Another object of the present invention is to provide a method for economically manufacturing the lip view mask through a simple process.

In order to achieve the object as described above, the present invention provides a body portion comprising a plurality of transparent portions and a cross-exposed portion in which the filter portion is alternately disposed; And it provides a lip-view mask comprising a fixing portion for fixing the body portion to the user's face.

In the present invention, the main body may include a first area covering the user's nose and a second area covering the user's mouth, wherein the cross-exposed portion is located in the second area.

In the present invention, the body portion may further include a third area covering the user's chin.

In the present invention, the body portion may have a folding structure including 1 to 5 folded parts.

In the present invention, the body portion may have a folding structure including a plurality of pleats, and the transparent portion may be formed in all or part of the pleats.

In the present invention, the body portion may include a first area covering the user's nose and a second area covering the user's mouth, and the transparent portion may be formed in a wrinkle portion positioned in the second area.

In the present invention, the filter unit is polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon), polycarbonate (PC), poly (phenylene sulfide) (PPS), polyethylene oxide (PEO), polyaniline, poly-ε-caprolactone (PCL), poly(lactic- co -glycolic acid) (PLGA), polyethylene glycol (PEG), poly(3,4-ethylenedioxythi offene), poly(styrene-sulfonate) (PSS)/polyvinylpyrrolidone (PVP), cellulose, lignin, chitosan, silk fibroin, collagen and It may be made of one or more materials selected from the group consisting of chitin.

In the present invention, the transparent portion is a polyethylene (polyethylene, PE) film, a polyethylene terephthalate (PET) film, a polypropylene (PP) film, a polyvinyl chloride (polyvinyl chloride, PVC) film, a polystyrene (polystyrene, PS) film, and an acrylonitrile-butadiene-styrene (ABS) film may include at least one transparent film selected from the group consisting of.

In the present invention, it is preferable that the height of each filter part is 3 to 10 mm.

In the present invention, the height of each transparent portion is preferably 5 to 12 mm.

In the present invention, the total area of the transparent portion is preferably 45 to 70% of the total area of the cross-exposed portion.

The present invention also provides a method of manufacturing a lip-view mask, comprising: disposing a plurality of transparent films at predetermined intervals; masking with a shielding film except for the edge portion of the transparent film; forming a filter unit by radiating a polymer solution on the masked transparent film; and removing the shielding film.

In the manufacturing method of the present invention, the spinning of the polymer solution may be performed by a melt-blown method.

In the manufacturing method of the present invention, the polymer solution used in the melt blown method is polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon), It may include at least one selected from the group consisting of polycarbonate (PC), and poly(phenylene sulfide) (PPS).

In the manufacturing method of the present invention, the spinning of the polymer solution may be performed by an electrospinning method.

In the manufacturing method of the present invention, the polymer solution used in the electrospinning method is polyethylene (PE), polypropylene (PP), polyethylene oxide (PEO), polycarbonate (PC), polyaniline, poly-ε-caprolactone ( PCL), poly(lactic- co -glycolic acid) (PLGA), polyethylene glycol (PEG), poly(3,4-ethylenedioxythiophene), poly(styrene-sulfonate) (PSS)/polyvinylpyrrolidone (PVP), cellulose (cellulose), lignin (lignin), chitosan (chitosan), silk fibroin (silk fibroin), collagen (collagen) and may include one or more selected from the group consisting of chitin (chitin).

The present invention also provides another method of manufacturing a lip-view mask, comprising: disposing a plurality of transparent films at predetermined intervals; A step of disposing a filter between each transparent film, the step of disposing so that the edge portion of the transparent film and the filter partially overlap; positioning a wire on the overlapping portion; And it provides a method of manufacturing a lip-view mask, comprising the step of bonding the filter to the transparent film by pressing the wire with a plate heated above the glass transition temperature of the filter or transparent film.

In the manufacturing method of the present invention, the wire may be made of one or more metals selected from the group consisting of copper, silver, aluminum and gold.

In the manufacturing method of the present invention, in the step of bonding the transparent film and the filter, the temperature of the heated plate is preferably 70 to 150 ℃.

In the manufacturing method of the present invention, in the step of bonding the transparent film and the filter, it is preferable that the pressure applied to the wire is 2 to 8 kgf/cm ² .

Since the lip-view mask of the present invention can sufficiently recognize the user's mouth shape and expression by alternately forming the transparent part and the filter part, communication of the hearing impaired can be made smoothly even while wearing the mask, and identification is easy You can reduce the threat by making it impossible to cover your face. In addition, since the filter part is formed between the transparent parts, there is less damage to the filter function compared to the transparent mask of the prior art, breathing is easy, and fogging occurring in the transparent part can be minimized.

In addition, according to the manufacturing method of the present invention, since the lip view mask can be economically manufactured through a simple process, it is possible to quickly supply a mask at a reasonable price.

1 is a perspective view of a lip view mask according to an embodiment of the present invention.
Figure 2 (a) shows a state diagram of use of the lip view mask including the wrinkle part according to an embodiment of the present invention in a state in which the wrinkle part in which the transparent part is disposed is folded.
Figure 2 (b) shows a state of use in a state in which the wrinkle part in which the transparent part of the lip view mask including the wrinkle part according to an embodiment of the present invention is arranged.
3 is a conceptual diagram illustrating a manufacturing method of radiating a polymer solution on a transparent film as a manufacturing method of a lip-view mask according to an embodiment of the present invention.
4 is a conceptual diagram illustrating a manufacturing method of arranging a filter on a transparent film and compressing it with a wire as a manufacturing method of a lip-view mask according to another embodiment of the present invention.
FIG. 5(a) shows the result of performing an image modeling test while changing the height of the transparent part for a lip view mask having a filter part height of 5 mm.
FIG. 5(b) shows the result of performing an image modeling test while changing the height of the transparent part with respect to the lip view mask having a filter part height of 7 mm.
6( a ) shows the results of a fogging test result of a lip-view mask having a transparent portion of 15 mm in height.
6(b) shows the results of a fogging test result of a lip view mask having a transparent portion of 8 mm in height.

Hereinafter, specific implementation forms of the present invention will be described in more detail. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In general, the nomenclature used herein is those well known and commonly used in the art.

The present invention relates to a lip-view mask capable of confirming the shape of the mask wearer's mouth, which facilitates communication and facilitates identification.

The lip-view mask of the present invention includes: a main body including a cross-exposed part in which a plurality of transparent parts and a filter part are alternately arranged; and a fixing part for fixing the body part to the user's face.

A lip view mask according to an embodiment of the present invention is shown in FIG. 1 .

The body part 100 is in close contact with the user's face to protect the respiratory system such as the nose and mouth, and includes a cross-exposed part 10 in which a plurality of filter parts 11 and transparent parts 12 are alternately arranged. By doing so, it is possible to grasp the user's mouth shape and expression even when worn, while breathing is easy, and fogging occurring in the transparent part can be minimized. The body part may be entirely or partially composed of the cross-exposed part, and in this case, the remaining area in which the cross-exposed part is not formed is made of a filter material.

The cross-exposed portion is an area in which a plurality of transparent portions and filter portions are alternately disposed to simultaneously perform a function of exposing the filter function of the mask and the shape of the user's mouth. and the filter unit may be alternately arranged. That is, in a preferred embodiment of the present invention, the transparent part or the filter part may have a long rectangular shape.

In the present invention, the filter unit serves to filter external foreign substances such as viruses, bacteria, droplets, yellow dust, and fine dust, and may be composed of a nonwoven fabric made of fibers having a thickness of nano to micro level.

The material of the nonwoven fabric constituting the filter unit may be appropriately selected according to the manufacturing method, use, and conditions of use of the mask, for example, polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon), polycarbonate (PC), poly (phenylene sulfide) (PPS), polyethylene oxide (PEO), polyaniline, poly-ε-caprolactone (PCL), poly (lactic- co- ) synthetic polymers such as glycolic acid) (PLGA), polyethylene glycol (PEG), poly(3,4-ethylenedioxythiophene), and poly(styrene-sulfonate) (PSS)/polyvinylpyrrolidone (PVP); natural polymers such as cellulose, lignin, chitosan, silk fibroin, collagen, and chitin; A combination of these and a collagen/chitosan-based hydrophilic polymer may be used.

The nonwoven fabric constituting the filter unit may be classified according to a manufacturing method, for example, a melt-blown nonwoven fabric manufactured by extrusion spinning a molten thermoplastic polymer through a nozzle, a repulsive force against an electric field. It can be divided into an electro-spinning nonwoven fabric, a spunbond nonwoven fabric manufactured by spinning a continuous fiber (filament) from a nozzle, and the like.

In the present invention, since the transparent part is made of a transparent material, it is possible to grasp the user's mouth shape and expression even when worn. As a material of the transparent part, a known transparent synthetic resin film that is harmless to the human body can be selected and used, for example, a polyethylene (PE) film, a polyethylene terephthalate (PET) film, a polypropylene (polypropylene, PP) film, polyvinyl chloride (PVC) film, polystyrene (PS) film, acrylonitrile-butadiene-styrene (ABS) film, etc. may be used.

In the present invention, it is important to control the height and ratio of the filter part and the transparent part so that the shape of the mouth can be easily checked without impairing the original filter function of the mask.

In the present invention, the 'height' of the filter part or the transparent part means a vertical length in a horizontally long rectangular shape, and means a distance between an adjacent filter part and the filter part, or between the transparent part and the transparent part.

In an embodiment of the present invention, the height of the filter unit may be 3 to 10 mm, preferably 5 to 7 mm. If the height of the filter part is too long, it is difficult to recognize the shape of the mouth and expression, and if the height of the filter part is too short, breathing is difficult, and fogging may occur in the transparent part.

Further, in the embodiment of the present invention, the height of each transparent portion may be 5 to 12 mm, preferably 7 to 10 mm. If the height of the transparent part is too long, the ratio of the filter part is lowered, so breathing may be difficult and fogging may occur. If the height of the transparent part is too short, it becomes difficult to recognize the mouth shape and expression.

In an embodiment of the present invention, the transparent part may occupy an area of 45 to 70%, preferably 55 to 65% of the total area of the cross-exposed part, that is, the sum of the areas of each transparent part and the filter part. In one embodiment of the present invention, it was confirmed that when the area of the transparent portion is within the above range, it is possible to easily recognize the shape of the mouth through the transparent portion and to minimize fogging due to breathing.

In one embodiment of the present invention, the body portion may be divided into a first area covering the nose portion and a second area covering the mouth portion, and in this case, the second area may be configured to include a cross-exposed portion. By configuring in this way, it is possible to minimize the deterioration of the filter function of the mask by including the cross-exposed portion only in the necessary portion for confirming the shape of the mouth.

Alternatively, in one embodiment of the present invention, the body portion may be divided into a first region covering the nose portion, a second region covering the mouth portion, and a third region covering the chin portion, at this time intersecting the second region It may be configured to include an exposed portion. Each of the regions does not need to be separated by a special boundary, but may have a shape divided by a feature such as a fold, which will be described later, depending on the structure of the mask.

In addition, in the present invention, the structure of the main body may be divided into a planar structure or a folding structure. The planar structure has a flat shape and means a structure that does not require additional manipulation when worn.

The foldable structure means a structure that can be folded and unfolded provided with a folding part or a wrinkle part. When the body part has a folding structure, when the folded part or the wrinkle part is folded, the overall length of the body part is reduced and it shows a flat shape, so it is convenient to store. It has a shape that is easy to adhere to.

When the foldable body part includes a fold part, the fold part serves to provide convenience when worn by being disposed on the upper or lower part of the main body part to support the nose or chin. The number of folds may be 1 to 5. For example, when the body includes two folds, the folds are respectively disposed on the upper and lower portions of the body. When the folded portion is folded, the mask has a planar shape, and when the folded portion is unfolded, each region forms a three-dimensional shape in which an obtuse angle is formed.

When the foldable body portion includes a wrinkle portion, a plurality of wrinkle portions may be formed on the body portion like a dental mask. In a state in which the wrinkle part is folded, the wrinkle part represents a planar shape in which the wrinkle part is not exposed, and in the state where the wrinkle part is unfolded, the wrinkle part is exposed and the overall length is lengthened, thereby forming a structure such as a curved surface to fit the shape of the face.

In the present invention, the 'wrinkle portion' refers to a portion that overlaps when the body portion is folded, and is not exposed to the front in the folded state. In this case, the front means the surface exposed to the outside based on the wearing direction of the mask.

In a preferred embodiment of the present invention, when the main body includes a pleated portion, a transparent portion may be disposed on the pleated portion. Accordingly, a structure is formed in which the transparent portion is not exposed when the body portion is folded, and the transparent portion disposed on the wrinkle portion is exposed when the body portion is unfolded.

In addition, the transparent part may be disposed on all or part of the plurality of wrinkle parts formed on the body part. In the case of disposing the transparent part only in some of the plurality of wrinkle parts, when exposure of the transparent part is unnecessary, the wrinkle part including the transparent part is folded and only the wrinkle part which does not include the transparent part is unfolded, and when it is necessary to expose the transparent part, Whether or not the transparent portion is exposed while wearing the mask can be adjusted by folding the wrinkles and folding the wrinkles that do not include the transparent portion.

2 shows a lip view mask including wrinkles according to an embodiment of the present invention.

In FIG. 2 , the body part 100 of the mask includes a first region 101 positioned on the user's nose; and a second region 102 positioned at the user's mouth, wherein the first region 101 and the second region 102 both include a wrinkle portion 20, A transparent portion 12 is disposed on the wrinkle portion 20 .

Figure 2 (a) is a state diagram of use when the user does not speak, in a state in which the wrinkle portion 20 of the second region 102 is folded, and the transparent portion 12 is not exposed to the outside. It is possible to spread the wrinkle portion 20 of the region 101 so that the entire length of the mask is not insufficient for use.

Figure 2 (b) is a state diagram in which the user exposes the shape of the mouth in order to communicate with the hearing impaired. This is to make it visible to the other party. In this case, the folds 20 of the first region 101 can be folded to prevent the mask from becoming excessively long.

In the present invention, the fixing unit 200 is a means for wearing a mask, and is configured in the form of an elastic fixing band that can be hung on the user's ear, a headset type that can be worn on the head, etc. ) to avoid separation. In particular, it is preferable that the fixing part 200 be formed of a material such as rubber having elasticity so that the body part 100 can be more accurately adhered to the user's face.

In one embodiment of the present invention, the lip view mask may further include a support portion 30 formed on the upper portion of the body portion 100 . The support part 30 is to prevent a gap between the upper part of the mask and the face due to the curvature caused by the nose bridge, and after wearing the mask, the support part 30 is pressed to fit the user's nose bridge so that the mask is applied to the skin of the face. It can be adjusted to fit closely. The support part 30 may be formed of a material whose shape is changed by pressure, for example, a metal or plastic wire, and may be attached to one surface of the body part 100 or may be built-in between mask fabrics.

The lip view mask of the present invention can be used for various purposes for protecting the respiratory tract, for example, it can be used as a dental mask, an anti-splash (AD) mask, a KF80, KF94 level health mask.

The present invention also relates to a method for manufacturing the lip view mask of the present invention.

Specifically, the manufacturing method of the present invention is a method of manufacturing the cross-exposed portion of the lip view mask, and provides a method of forming a filter portion between the transparent films by radiating a polymer solution on the transparent film disposed at a predetermined interval.

3 shows a conceptual diagram of a manufacturing process of the lip view mask of the present invention.

Referring to FIG. 3 , the manufacturing method includes disposing a plurality of transparent films at predetermined intervals; masking with a shielding film except for the edge portion of the transparent film; radiating a polymer solution on the masked transparent film to form a filter part between the transparent films; and removing the shielding film.

According to the manufacturing method of the present invention, since bonding is possible without a process of welding the transparent part and the filter part, there is an advantage in that productivity is improved and manufacturing cost is reduced.

In the disposing of the transparent film, a necessary number of transparent films may be arranged in consideration of the shape of the lip view mask to be manufactured. In addition, the spacing of the transparent film is preferably arranged in consideration of the spacing between the transparent parts of the lip view mask to be manufactured, but considering the length of the portion overlapping the filter part. In a preferred embodiment of the present invention, the spacing of the transparent film may be 2 to 10 mm, preferably 4 to 6 mm.

In the above production method, a polyethylene film, a polyethylene terephthalate film, a polypropylene film, a polyvinyl chloride film, a polystyrene film, an acrylonitrile-butadiene-styrene film, etc. may be used as the transparent film.

Thereafter, a step of covering with a shielding film is performed except for the edge portion of the transparent film on which the filter unit is to be formed through masking. In this case, the edge portion of the transparent film is a portion overlapping to be connected to the filter unit, and refers to a portion 0.1 to 3 mm, preferably 0.5 to 1 mm, from the ends of the four sides of the transparent film.

In the manufacturing method, the step of spinning the polymer solution on the masked transparent film may be performed by a melt blown method or an electrospinning method.

The melt blown method is a method of forming a polymer filter by melting a thermoplastic polymer and extruding it through a nozzle. According to the melt blown method, it is possible to manufacture ultrafine fibers having a thickness of several micrometers.

In the present invention, when the polymer solution is spun by the melt blown method, the polymer solution is polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon) , polycarbonate (PC), poly(phenylenesulfide) (PPS), and the like.

The electrospinning method is a method of forming a polymer filter by applying a high voltage electric field, discharging a positively charged polymer solution from a spinneret, collecting it on a negatively charged current collector, and forming a high voltage electric field. It uses the principle of splitting into nano-sized threads by the electrical repulsive force of the material. According to the electrospinning method, ultrafine fibers having a thickness of several tens to several hundreds of nanometers can be manufactured, and there is an advantage in that fibers can be manufactured with various polymers.

In the present invention, when the polymer solution is spun by the electrospinning method, the polymer solution is polyethylene (PE), polypropylene (PP), polyethylene oxide (PEO), polycarbonate (PC), polyaniline, poly-ε-caprolactone (PCL), poly(lactic- co -glycolic acid) (PLGA), polyethylene glycol (PEG), poly(3,4-ethylenedioxythiophene), poly(styrene-sulfonate) (PSS)/polyvinylpyrrol synthetic polymers such as money (PVP); natural polymers such as cellulose, lignin, chitosan, silk fibroin, collagen, and chitin; A combination of these and a collagen/chitosan-based hydrophilic polymer may be included.

In the present invention, the method may further include drying the filter unit after removing the shielding film. The drying may be performed by a known method.

The present invention also provides a method for manufacturing the cross-exposed portion of the lip-view mask of the present invention, wherein a filter is disposed between transparent films disposed at a predetermined interval and compressed with a wire to cross-bond the transparent film and the filter portion. .

4 shows a conceptual diagram of the manufacturing process.

As shown in FIG. 4 , the manufacturing method includes disposing a plurality of transparent films at predetermined intervals; A step of disposing a filter between each transparent film, the step of disposing so that the edge portion of the transparent film and the filter partially overlap; positioning a wire on the overlapping portion; and bonding the filter to the transparent film by pressing the wire with a plate heated above the glass transition temperature of the filter or transparent film.

In the above production method, a polyethylene film, a polyethylene terephthalate film, a polypropylene film, a polyvinyl chloride film, a polystyrene film, an acrylonitrile-butadiene-styrene film, etc. may be used as the transparent film.

In the manufacturing method, as a filter, a nonwoven fabric in which fibers having a thickness of nano to micro level are overlapped in a certain direction or in a negative direction may be used, for example, melt-blown fibers, electrospun fibers, spunbond fibers, Natural fibers and the like can be used. Specifically, the material of the filter is polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon), polycarbonate (PC), polyphenylene sulfide (PPS), polyethylene oxide (PEO), polyaniline, poly-ε-caprolactone (PCL), poly(lactic- co -glycolic acid) (PLGA), polyethylene glycol (PEG), poly(3,4-ethylenedioxythi offene) and synthetic polymers such as poly(styrene-sulfonate)/polyvinylpyrrolidone; natural polymers such as cellulose, lignin, chitosan, silk fibroin, collagen, and chitin; A combination of these and a collagen/chitosan-based hydrophilic polymer may be used.

In general, since the bonding method using high-temperature pressing is performed by applying heat and pressure to a large area, it is difficult to apply to the method of bonding fine line areas as in the present invention. However, in the present invention, since heat and pressure can be applied only to a fine line region by using a wire having high thermal conductivity, the overlapping portion of the transparent film and the filter can be easily bonded.

As the wire, a material having high thermal conductivity may be used, for example, copper, silver, aluminum, gold, etc. may be used, and copper is most preferable. By placing the wire on the crossing point and then compressing it at a high temperature, the transparent film and the filter can be bonded.

In the above manufacturing method, the compression may be performed at a temperature above the glass transition temperature (T _g ) of the transparent film, the filter, or both. For example, the compression of the wire may be performed at 50 to 250 °C, preferably at 70 to 150 °C, more preferably at 80 to 100 °C.

Through this process, only a portion of the transparent film or filter in contact with the wire is partially melted and bonding can be achieved.

In the manufacturing method, the pressure applied to the wire may be set in an appropriate range according to the material of the transparent film and the filter. For example, the range of pressure may be 1 to 20 kgf/cm ² , preferably 2 to 8 kgf/cm ² .

Example

The present invention will be described in more detail with reference to the following examples. However, these Examples show some experimental methods and configurations to exemplify the present invention, and the scope of the present invention is not limited to these Examples.

Example 1: Image modeling test according to the height of the filter part and the transparent part

In order to determine the exposure degree of the mouth shape according to the height of the filter part and the transparent part, an image modeling test was performed as shown in FIG. 5 .

5 (a) shows an image to which a sample in which the height of the transparent part is changed to 5 mm, 7 mm, 8 mm, 9 mm, 10 mm and 12 mm is applied in a state where the height of the filter part is fixed at 5 mm, FIG. 5 (b) is the height of the filter part In the state where is fixed to 7mm, the image is applied to the sample in which the height of the transparent part is changed to 6mm, 7mm, 8mm, 9mm, 10mm, and 11mm is shown. At this time, the sample was formed on a face with a smiling expression, and the total length of the main body was set at a level of 70 to 80 mm.

From the image modeling result of FIG. 5 , it was confirmed that the lips were exposed according to the height of the filter part and the transparent part, and when the height of the transparent part was too thin as 5 mm, it was confirmed that it was difficult to recognize a smiling expression.

Example 2: Experiment on whether fogging occurs according to the height of the transparent part

For the mask (a) with a filter part height of 5 mm and a transparent part height of 15 mm, and a mask with a filter part height of 5 mm and a transparent part height of 8 mm (b), after breathing for 5 minutes while wearing, check whether fogging occurs. Thus, the results are shown in FIG. 6 .

As can be seen from Fig. 6(a), when the height of the transparent part was 15 mm thick, it was easy to recognize the shape of the lips and the expression, but it was confirmed that fogging occurred by breathing. On the other hand, as can be seen from FIG. 6(b), when the height of the transparent part was 8 mm, it was confirmed that the shape of the lips and the expression were recognized, and fogging did not occur due to breathing.

From the above description, those skilled in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. In this regard, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention, rather than the above detailed description, all changes or modifications derived from the meaning and scope of the following claims and their equivalents.

Claims (20)

a body portion including a plurality of transparent portions and a cross-exposed portion in which the filter portions are alternately disposed; and
A fixing part for fixing the body part to the user's face
Including, lip view mask. The method of claim 1,
The main body includes a first area covering the user's nose and a second area covering the user's mouth,
The lip view mask, characterized in that the cross-exposed portion is located in the second region. 3. The method of claim 2,
The lip view mask, wherein the body part further includes a third area covering the user's chin. The method of claim 1,
The lip view mask, characterized in that the main body has a foldable structure including 1 to 5 folds. The method of claim 1,
The body part has a foldable structure including a plurality of wrinkle parts,
The lip view mask, characterized in that the transparent portion is formed in all or part of the wrinkle portion. 6. The method of claim 5,
The main body includes a first area covering the user's nose and a second area covering the user's mouth,
The lip view mask, characterized in that the transparent portion is formed in the wrinkle portion of the second region. The method of claim 1,
The filter unit is polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon), polycarbonate (PC), poly (phenylene sulfide) (PPS), Polyethylene oxide (PEO), polyaniline, poly-ε-caprolactone (PCL), poly (lactic- co -glycolic acid) (PLGA), polyethylene glycol (PEG), poly (3,4-ethylenedioxythiophene), poly (styrene-sulfonate) (PSS)/polyvinylpyrrolidone (PVP), cellulose, lignin, chitosan, silk fibroin, collagen and chitin A lip view mask, characterized in that it is made of one or more materials selected from the group consisting of. The method of claim 1,
The transparent addition polyethylene (polyethylene, PE) film, polyethylene terephthalate (PET) film, polypropylene (polypropylene, PP) film, polyvinyl chloride (polyvinyl chloride, PVC) film, polystyrene (polystyrene, PS) film, And Acrylonitrile-butadiene-styrene (acrylonitrile-butadiene-styrene, ABS) film, characterized in that it comprises at least one transparent film selected from the group consisting of, lip view mask. The method of claim 1,
The lip view mask, characterized in that the height of the filter part is 3 to 10 mm. The method of claim 1,
The lip view mask, characterized in that the height of the transparent portion is 5 to 12 mm. The method of claim 1,
The lip view mask, characterized in that the total area of the transparent portion is 45 to 70% of the total area of the cross-exposed portion. A method of manufacturing a lip view mask comprising the steps of:
disposing a plurality of transparent films at predetermined intervals;
masking with a shielding film except for the edge portion of the transparent film;
forming a filter unit by radiating a polymer solution on the masked transparent film; and
removing the shielding film. 13. The method of claim 12,
A method of manufacturing a lip-view mask, characterized in that the spinning of the polymer solution is performed by a melt-blown method. 14. The method of claim 13,
The polymer solution is polyethylene (PE), polypropylene (PP), polystyrene (PS), polyester, polyurethane (PU), polyamide (nylon), polycarbonate (PC), and poly (phenylene sulfide) (PPS) ), characterized in that it comprises at least one selected from the group consisting of, a method of manufacturing a lip view mask. 13. The method of claim 12,
The method of manufacturing a lip-view mask, characterized in that the radiation of the polymer solution is performed by an electrospinning method. 16. The method of claim 15,
The polymer solution is polyethylene (PE), polypropylene (PP), polyethylene oxide (PEO), polycarbonate (PC), polyaniline, poly-ε-caprolactone (PCL), poly (lactic- co -glycolic acid) (PLGA) ), polyethylene glycol (PEG), poly (3,4-ethylenedioxythiophene), poly (styrene-sulfonate) (PSS) / polyvinylpyrrolidone (PVP), cellulose (cellulose), lignin (lignin), A method of manufacturing a lip view mask, comprising at least one selected from the group consisting of chitosan, silk fibroin, collagen, and chitin. A method of manufacturing a lip view mask comprising the steps of:
disposing a plurality of transparent films at predetermined intervals;
A step of disposing a filter between each transparent film, the step of disposing so that the edge portion of the transparent film and the filter partially overlap;
positioning a wire on the overlapping portion; and
Bonding the transparent film and the filter by pressing the wire with a plate heated above the glass transition temperature of the filter or transparent film. 18. The method of claim 17,
The method of manufacturing a lip-view mask, characterized in that the wire is made of at least one metal selected from the group consisting of copper, silver, aluminum and gold. 18. The method of claim 17,
In the step of bonding the transparent film and the filter, the temperature of the heated plate is 70 to 150 ℃, characterized in that the manufacturing method of the lip view mask. 18. The method of claim 17,
In the step of bonding the transparent film and the filter, the pressure applied to the wire is 2 to 8 kgf/cm ² A method of manufacturing a lip-view mask, characterized in that it is.

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