JP6811450B1 - mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mask capable of exhibiting a good balance between air permeability and catching foreign matter, and a method for producing the same. SOLUTION: A mask 10 includes a mask main body 12 that covers the mouth and nostrils of a user M, and left and right ear hooks 14a and 14b. The mask body 12 is formed of a foamed resin sheet S having a large number of bubbles 20 that are continuous with each other, and a coating film 22 made of a coating material is formed on the inner surface of the bubbles 20 in at least a part of the mask body 12. ing. Assuming that the portion of the mask body 12 for which foreign matter is to be captured is the first portion N1, the coating film 22 constitutes a pattern F1 that appears on the outer surface P2 of the mask body 12. Assuming that the portion of the mask body 12 for which strength against external force is desired is the second portion N2, the coating film 22 constitutes a pattern F2 appearing on the outer surface P2 of the mask body 12 in the second portion N2. [Selection diagram] Fig. 2

Description

The present invention relates to a mask as a hygienic product comprising a mask body that covers the user's mouth and nostrils.

In recent years, viral infections, hay fever, and health problems due to air pollution have become social problems, and it is important for masks to capture foreign substances such as viruses, bacteria, pollen, dust, and fine particulate matter (PM2.5). The sex is increasing. Conventional masks include cloth masks and non-woven fabric masks, but these masks have a problem that a gap is likely to occur between the outer peripheral portion of the mask body and the face because of poor elasticity. In addition, the non-woven fabric mask has a problem that it cannot be used repeatedly while washing because of its low durability.

As a conventional mask that can solve each of the above problems, there is a mask made of urethane foam sheet (see Patent Document 1). According to this mask, since it is made of a urethane foam sheet having high elasticity, it is possible to suppress the formation of a gap between the outer peripheral portion of the mask body and the face. Further, as described in the second page of the specification of Patent Document 1, lines 11 to 12, there is an effect that "it is highly wash-resistant and can be continuously used for a relatively long period of time". Can be played.

Jikkai Sho 59-71654

However, with a mask made of urethane foam sheet, it is difficult to adjust the size of air bubbles during manufacturing. Therefore, if the air bubbles become too small, the air permeability for passing air may be impaired and the mask may become stuffy. If the air bubbles become too large, the ability to capture foreign matter may be impaired.

The present invention has been made to address the above problems, and an object of the present invention is to provide a mask capable of exhibiting a good balance between air permeability and foreign matter trapping property, and a method for producing the same.

In order to achieve the above object, the feature of the mask according to the present invention is to include a mask body that covers the user's mouth and nostrils, and the mask body is formed of a foamed resin sheet having a large number of bubbles continuous with each other. A coating film made of a coating material is formed on the inner surface of the bubbles in at least a part of the mask body.

In this configuration, since the mask body is made of a foamed resin sheet having excellent elasticity and durability, it is possible to suppress the formation of a gap between the outer peripheral portion of the mask body and the face, and to wash the mask body. However, it can be used repeatedly. Further, since a coating film is formed on the inner surface of bubbles in at least a part of the mask body, it is possible to reduce the bubbles by the coating film, and viruses, bacteria, pollen, dust and fine particulate matter (PM2). It is possible to improve the catchability of foreign substances such as 5.5). That is, it is possible to narrow the internal space of the bubbles with the coating film, and it is possible to make it difficult for foreign matter to pass through. Further, since the air bubbles can be reinforced with the coating film, the strength of the mask body can be increased. Further, the formation position and thickness of the coating film can be easily adjusted by adjusting the coating position and the coating amount of the coating material.

Another feature of the mask according to the present invention is that the coating film is formed on the inner surface of the bubbles at least in the first portion when the portion of the mask body for which foreign matter is desired to be captured is set as the first portion. It is to be done.

In this configuration, since the coating film is formed on the inner surface of the bubbles at least in the first portion, the bubbles in the first portion are small. Therefore, in the first portion, the catchability of foreign matter is high, and foreign matter can be effectively caught. In this case, the first part is the part facing the mouth and / or nostril of the mask user. More specifically, the first part is a size that completely covers the mouth on the face, a size that completely covers the area around the mouth, chin, and chin, or a central part of the philtrum (up, down, left, and right). A radius of at least 30 mm (generally covering the mouth and nose), 50 mm (generally covering about half of the chin chin) and 70 mm (generally covering the entire chin chin) centered on the central part) ) There is an area within a circle. The first portion includes an inner surface on the side facing the user's face and / an outer surface on the opposite side of the inner surface.

Another feature of the mask according to the present invention is that the first portion is a region within a circle having a radius of 30 mm centered on the central portion of the human face, and the coating film covers the entire area of the first portion. It is in being formed.

In this configuration, the first portion is a region within a circle having a radius of 30 mm centered on the central portion of the philtrum on the face, and the coating film is formed over the entire area of the first portion, so that foreign matter can be captured effectively. Can be improved.

Another feature of the mask according to the present invention is that the coating film is formed on the inner surface of the bubbles in the plurality of parts of the mask body, and the thickness of the coating film in one of the plurality of parts or The distribution density is different from the thickness or distribution density of the coating film in the other one.

In this configuration, the thickness or distribution density of the coating film differs between one of the plurality of parts of the mask body and the other one, so that each of these parts has air permeability and foreign matter trapping property. Can be determined as appropriate.

Another feature of the mask according to the present invention is that the foamed resin constituting the sheet is urethane foam.

According to this configuration, since the mask body is formed of a soft and highly elastic urethane foam sheet, the mask feels good on the skin and a comfortable wearing feeling can be obtained.

Another feature of the mask according to the present invention is that the coating material constituting the coating film is a urethane-based paint.

According to this configuration, since the coating film is formed of the urethane-based paint having a high elasticity, the resistance of the coating film to bending and expansion and contraction can be enhanced.

Another feature of the mask according to the present invention is that when the surface of the mask body facing the user's face is the inner surface and the surface on the opposite side is the outer surface, the coating film is the inner surface or the outer surface. It is in the composition of the pattern that appears in.

According to this configuration, since the coating film constitutes the pattern, the design can be enhanced.

Another feature of the mask according to the present invention is that the mask is further provided with an ear hook portion that can be hung on the user's ear, and the boundary portion between the mask body and the ear hook portion and a portion in the vicinity thereof are defined as the second portion. The coating film is formed on the second portion.

When the user puts on and takes off the mask, the ear hook is pulled by hand, so the boundary between the mask body and the ear hook and its vicinity (second part) exert an external force compared to other parts. Easy to receive. According to the above configuration, since the coating film is formed on the second portion, it is possible to reinforce the second portion with the coating film, and damage to the second portion can be suppressed.

Another feature of the mask according to the present invention is further provided with an ear hook that can be hung on the user's ear, and the ear hook is made of the same material as the sheet and is integrally formed with the mask body. The coating film is formed on at least a part of the hanging portion.

When the user puts on and takes off the mask, the ear hook is pulled by hand, so that the ear hook is more susceptible to damage than other parts. According to the above configuration, since the coating film is formed on at least a part of the ear hook portion, the ear hook portion can be reinforced by the coating film.

Another feature of the mask according to the present invention is a method for manufacturing a mask including a mask body that covers the user's mouth and nostrils, wherein (a) the mask is made of a foamed resin sheet having a large number of bubbles continuous with each other. A main body is formed, (b) a portion of the mask main body for which foreign matter is desired to be captured is specified as an application target area, and (c) a coating material is applied to the application target area to apply a coating material on the inner surface of the air bubbles. To form.

In this configuration, the size of the bubbles can be reduced by the thickness of the coating film by forming the coating film on the inner surface of the bubbles provided on the foamed resin sheet. Therefore, in the step (a), if the mask body is formed of a foamed resin sheet having large bubbles, in the subsequent step (c), the bubbles can be reduced to a required size simply by applying the coating material. Can be done. Since the thickness of the coating film can be adjusted by the amount of the coating material applied, it is possible to finely adjust the size of the bubbles, and it is possible to obtain a good balance between air permeability and foreign matter trapping property.

Another feature of the mask according to the present invention is that in the step (b), the coating target area is specified by covering the periphery of the coating target area in the mask body with a mold, and in the step (c), the coating target area is specified. The purpose is to apply the coating material to the area to be coated by using a spraying method or a roller coating method.

In this configuration, since the periphery of the coating target area is covered with a mold, the coating material can be accurately applied to the coating target area, and the pattern can be accurately constructed. Further, since the spraying method or the roller coating method is used, it is easy to form the coating film uniformly and to adjust the thickness of the coating film.

Another feature of the mask according to the present invention is a catchability adjusting method for adjusting the catchability of foreign matter in the mask body including the mask body covering the user's mouth and nostrils, and (a) a large number of consecutive masks. The mask body is prepared with a foamed resin sheet having air bubbles, (b) a portion of the mask body for which foreign matter is desired to be captured is specified as an application target area, and (c) a coating material is applied to the application target area. It is applied to form a coating film on the inner surface of the bubbles.

In this configuration, the size of the bubbles can be reduced by the thickness of the coating film by forming the coating film on the inner surface of the bubbles provided on the foamed resin sheet. Therefore, in the step (a), if a foamed resin sheet having large bubbles is obtained from a user or the like, in the subsequent step (c), the bubbles are reduced to the required size simply by applying the coating material. be able to. Since the thickness of the coating film can be adjusted by the amount of the coating material applied, it is possible to finely adjust the size of the bubbles, and it is possible to obtain a good balance between air permeability and foreign matter trapping property.

It is a perspective view which shows the use state of the mask which concerns on embodiment. It is a front view which shows the state which opened the mask which concerns on embodiment. It is a figure which shows the state which the mask which concerns on embodiment is folded, (A) is a front view, (B) is a plan view. It is sectional drawing which shows the composition of a bubble. (A) is a cross-sectional view showing the structure of the coating film of the first part, and (B) is a cross-sectional view showing the structure of the coating film of the second part. It is a perspective view which shows the manufacturing method of the mask which concerns on embodiment. It is a schematic diagram which shows the size example of the 1st part in the mask which concerns on another embodiment. It is a front view which shows the structure of the mask which concerns on other embodiment. It is a front view which shows the structure of the mask which concerns on other embodiment.

Hereinafter, embodiments of the mask according to the present invention will be described with reference to the drawings.

(Structure of mask according to embodiment)
FIG. 1 is a perspective view showing a usage state of the mask 10 according to the embodiment. FIG. 2 is a front view showing a state in which the mask 10 is opened. 3A and 3B are views showing a state in which the mask 10 is folded, FIG. 3A is a front view, and FIG. 3B is a plan view. In addition, each direction of "up, down, left, right" used in the following description is a direction seen from the user M, and coincides with each direction indicated by an arrow in the figure.

The mask 10 shown in FIG. 1 is a hygienic product worn by the user M in order to prevent viral infections, pollinosis, health problems due to air pollution, and the like. The mask 10 includes a mask body 12 that covers the mouth and nostrils of the user M, and left and right ear hooks 14a and 14b that are hung on the ears of the user M. In FIG. 1, the right ear hook portion 14b is hidden and invisible.

As shown in FIG. 2, the mask body 12 has a left side portion 12a and a right side portion 12b formed of the same material and having the same shape. As shown in FIG. 1, the left side portion 12a is formed in a sheet shape that covers from the central portion of the face of the user M to the central portion of the left cheek. The left edge 16a of the left side portion 12a is formed in a curved arc shape along the nose, mouth and chin of the user M. A left ear hook portion 14a is continuously provided on the left edge 16b of the left side portion 12a.

As shown in FIG. 3A, the left ear hook portion 14a is formed in a U-shaped horizontal shape. One end of the left ear hook 14a is connected to the upper part of the left side portion 12a of the mask body 12, and the other end of the left ear hook 14a is connected to the lower part of the left side portion 12a of the mask body 12. Has been done.

The left side portion 12a and the left side ear hook portion 14a shown in FIG. 3A are integrally formed with each other by cutting out a sheet S made of foamed resin having a large number of bubbles 20 continuous with each other. .. Therefore, there is no joined portion at the boundary portion W between the left side portion 12a and the left side ear hook portion 14a.

In the present embodiment, as the foamed resin constituting the sheet S, soft urethane foam that is soft and has abundant elasticity is used. The type of urethane foam is not particularly limited, and a polyether-based low-resilience urethane foam, a polyester-based high-resilience urethane foam, and the like can be used. When a polyether-based low-resilience urethane foam is used, it is possible to construct a mask 10 having good water resistance, good cushioning properties, and high adhesion along the shape of the skin. On the other hand, when a polyester-based high-resilience urethane foam is used, it is possible to construct a mask 10 which has good elasticity and tear resistance and can easily adjust the size of the bubbles 20. As the foamed resin constituting the sheet S, another material such as a rubber sponge may be used instead of the urethane foam.

As shown in FIG. 2, the right side portion 12b is formed in a sheet shape that covers from the central portion of the face of the user M (FIG. 1) to the central portion of the right cheek. The right edge 18a of the right portion 12b is formed in an arc shape curved along the nose, mouth and chin of the user M (FIG. 1). A right ear hook portion 14b is continuously provided on the right edge 18b of the right side portion 12b.

As shown in FIG. 2, the right ear hook portion 14b is formed in a U-shaped horizontal shape. One end of the right ear hook 14b is connected to the upper part of the right side portion 12b of the mask body 12, and the other end of the right ear hook 14b is connected to the lower part of the right side portion 12b of the mask body 12. Has been done.

The right side portion 12b and the right side ear hook portion 14b shown in FIG. 2 are integrally integrated with each other by cutting out one foamed resin sheet S having a large number of bubbles 20 (so-called open cell structure) continuous with each other. It is formed. Therefore, there is no joined portion at the boundary portion W between the right side portion 12b and the right side ear hook portion 14b. As described above, in the present embodiment, as the foamed resin constituting the sheet S, soft urethane foam having high elasticity is used.

As shown in FIG. 3B, since the left side portion 12a and the right side portion 12b are formed in a sheet shape having the same shape, they can be overlapped with each other. The mask main body 12 is formed by joining the curved left edge 16a of the left side portion 12a and the curved right edge 18a of the right side portion 12b in a state where these are overlapped with each other. Therefore, as shown in FIG. 1, when the mask 10 is unfolded, the curved left edge 16a and the right edge 18a have a three-dimensional shape that bulges outward, and is between the mouth of the user M and the mask body 12. A gap can be secured.

FIG. 4 is a cross-sectional view showing the structure of the bubble 20. FIG. 5A is a cross-sectional view showing the structure of the coating film 22 of the first portion N1. FIG. 5B is a cross-sectional view showing the structure of the coating film 22 of the second portion N2.

Since the mask body 12 shown in FIG. 2 is formed of a foamed resin sheet S, bubbles 20 are distributed throughout the mask body 12 as shown in FIG. When the size of the bubble 20 changes, the air permeability through which air passes changes and the catchability for capturing foreign matter changes. Therefore, the size of the bubble 20 is an important factor that affects the performance of the mask 10. However, it is difficult to adjust the size of the bubbles 20 during the production of the sheet S. Further, it is difficult to secure sufficient strength against the external force in the portion of the mask body 12 on which a large external force acts.

Therefore, as shown in FIG. 2, when the portion of the mask body 12 for which foreign matter capture property is desired is defined as the first portion N1, the inner surface of the bubble 20 in the first portion N1 is shown in FIG. 5 (A). As described above, the coating film 22 is formed with a thickness that balances air permeability and foreign matter trapping property. As the coating material constituting the coating film 22, a colored urethane-based paint having a high elasticity is used.

In the present embodiment, the portion of the user M (FIG. 1) facing the mouth and nostrils is the first portion N1, and the first portion N1 is symmetrically configured on both the left and right sides of the central portion of the mask body 12. Has been done. The position of the first portion N1 is not limited to this embodiment, and may be appropriately changed depending on the intended use of the mask 10. Further, the first portion N1 may be configured on only one of the left and right sides.

As shown in FIG. 5A, when the coating film 22 is formed on the inner surface of the bubbles 20 of the first portion N1, the bubbles 20 can be made smaller by the coating film 22 to improve the catchability of foreign matter. Can be done. That is, since the internal space of the air bubbles 20 can be narrowed by the coating film 22, it is possible to make it difficult for foreign matter to pass through.

Further, as shown in FIG. 2, when the portion of the mask body 12 whose strength against external force is desired is the second portion N2, the inner surface of the bubble 20 in the second portion N2 is as shown in FIG. 5 (B). In addition, the coating film 22 is formed with a thickness capable of obtaining sufficient strength against an external force. Similar to the first portion N1, as the coating material constituting the coating film 22, a colored urethane-based paint having a high elasticity is used. In the present embodiment, the boundary portion W between the mask main body 12 and the ear hook portions 14a and 14b and the portion in the vicinity thereof are the second portion N2, and the second portion N2 is located on both the left and right sides of the central portion of the mask main body 12. It is configured symmetrically. The position of the second portion N2 is not limited to this embodiment, and may be appropriately changed depending on the intended use of the mask 10. Further, the second portion N2 may be configured on only one of the left and right sides.

As shown in FIG. 5B, when the coating film 22 is formed on the inner surface of the bubbles 20 of the second portion N2, the coating film 22 can reinforce the bubbles 20 and thus increase the strength of the mask body 12. be able to.

As shown in FIGS. 5A and 5B, in the present embodiment, the thickness of the coating film 22 of the second portion N2 is thicker than the thickness of the coating film 22 of the first portion N1. , These thicknesses may be the same. Further, the thickness of the coating film 22 of the first portion N1 may be thicker than the thickness of the coating film of the second portion N2. Further, in FIGS. 5A and 5B, the coating film 22 is drawn to have a uniform thickness, but in reality, it is extremely difficult to form the coating film 22 to a completely uniform thickness. It may be formed to have a non-uniform thickness, or some bubbles 20 may be blocked.

As shown in FIG. 2, when the surface of the mask body 12 facing the face of the user M (FIG. 1) is the inner surface P1 and the surface on the opposite side is the outer surface P2, the coating film of the first portion N1 is formed. Reference numeral 22 constituting the pattern F1 appearing on the outer surface P2 of the mask main body 12. Further, the coating film 22 of the second portion N2 constitutes a pattern F2 that appears on the outer surface P2 of the mask main body 12. The pattern F1 of the present embodiment is specifically a "cherry petal pattern" and a "polka dot pattern", and the pattern F2 of the present embodiment is specifically a "polka dot pattern".

The types of patterns F1 and F2 are not limited to this embodiment, and for example, "geometric patterns", "pictures of animals", "characters", and the like may be used. The color of the coating material forming the coating film 22 may be determined to be one color according to the colors of the patterns F1 and F2. Further, a plurality of coating materials having different colors may be used depending on the number of colors of the patterns F1 and F2.

As shown in FIG. 2, the pattern F1 of the first part N1 is a "cherry petal pattern" and a "polka dot pattern", but when focusing only on the first part N1, the part near the mouth of the user M is "cherry blossom". A "petal pattern" is formed, and the density of the coating film 22 in this portion is higher than that in the other portions. That is, the catchability of foreign matter is high in the portion close to the mouth of the user M. Therefore, when the user M breathes, the foreign matter can be effectively captured in the portion where the "cherry petal pattern" is formed.

(Method of manufacturing a mask according to an embodiment)
FIG. 6 is a perspective view showing a method of manufacturing the mask 10 according to the embodiment. When manufacturing the mask 10, the step (a) of forming the mask body 12, the step (b) of specifying the coating target region, and the step (c) of forming the coating film 22 are executed in this order. ..

In the step (a), the left side portion 12a and the left side ear hook portion 14a of the mask body 12 shown in FIG. 2 are integrally formed by cutting out one continuous sheet S made of foamed resin, and FIG. The right side portion 12b of the mask body 12 shown in 2 and the right ear hook portion 14b are integrally formed. Then, after these two parts are superposed on each other, the curved left end edge 16a of the left side portion 12a and the curved right end edge 18a of the right side portion 12b are joined by a joining means such as heat welding.

In the present embodiment, the two left and right parts are joined before the step (c) of forming the coating film 22, but after the step (c) of forming the coating film 22, the two left and right parts are joined. The parts may be joined. That is, when the step (c) for forming the coating film 22 is executed, the mask body 12 may be divided into left and right.

In the step (b), the mold 24 shown in FIG. 6 is prepared, and the mold 24 is superposed on the surface of the mask main body 12. The mold 24 is a sheet-like member in which a plurality of through holes 24a corresponding to the above-mentioned patterns F1 and F2 are formed. When the mold 24 is superposed on the surface of the mask body 12, the application target area is specified by the through hole 24a, and the peripheral portion of the coating target area is covered with the mold 24. Therefore, the operator can accurately apply the coating material to the coating target area, and it is easy to draw the patterns F1 and F2 with high accuracy in the next step (c).

In the step (c), the coating material is applied to the coating target region specified in the step (b) to form the coating film 22 on the inner surface of the bubbles 20. The method of applying the coating material is not particularly limited and may be brush coating, but a method of uniformly coating the coating material is desirable in that the coating amount can be adjusted accurately. For example, the spraying method shown in FIG. 6 or the roller coating method (not shown) is desirable. In particular, the spraying method shown in FIG. 6 is desirable in that the coating material can penetrate into the recesses of the bubbles 20. As shown in FIG. 6, in the spraying method, a spray gun 26 or the like is used as a device for spraying the coating material. In the roller coating method, a roller (not shown) is used as a device for coating the coating material on the surface.

In step (c), the coating material may be applied once to the mask body 12 and then a breathability test may be performed, and if the breathability is insufficient, the coating material may be applied again. According to this method, it is possible to accurately control the air permeability and the trapping property (filtering performance) of foreign substances.

Further, the operator can also control the air permeability of the mask body 12 and the ability to catch foreign substances (filtering performance) by applying the coating material to the mask body 12 once on the market. That is, after the worker temporarily keeps the mask 10 from the user who is using or intends to use the mask 10 and forms the coating film 22 by the steps (b) and (c), the coating film 22 is formed. It can be returned to the user. According to this, the operator can realize the air permeability and the foreign matter trapping property of the mask body 12 according to the user's preference.

(Effect of mask according to embodiment)
According to the present embodiment, the following effects can be achieved by the above configuration. That is, since the mask body 12 shown in FIG. 1 is formed of a foamed resin sheet having excellent elasticity and durability, it is possible to suppress the formation of a gap between the outer peripheral portion of the mask body 12 and the face. , Can be used repeatedly while washing.

As shown in FIGS. 5A and 5B, since the coating film 22 is formed on the inner surface of the bubbles 20 in at least a part of the mask body 12, the coating film 22 can reduce the bubbles 20. Therefore, it is possible to improve the catchability of foreign matter. Further, since the air bubbles 20 can be reinforced by the coating film 22, the strength of the mask body 12 can be increased. Further, the formation position and thickness of the coating film 22 can be easily adjusted by adjusting the coating position and the coating amount of the coating material.

Since the coating film 22 is formed on the inner surface of the bubbles 20 in the first portion N1 shown in FIG. 2, the bubbles 20 in the first portion N1 are small. Therefore, in the first portion N1, the foreign matter is highly trapped, and the foreign matter can be efficiently trapped.

As shown in FIGS. 5A and 5B, since the thickness of the coating film is different between the first portion N1 and the second portion N2, the air permeability and the foreign matter are found in each of these portions. The catchability can be appropriately determined. As shown in FIG. 3A, focusing on the first portion N1, the distribution density of the coating film 22 is different between the portion in which the “cherry petal pattern” is formed and the other portion. Breathability and foreign matter trapping property can be appropriately determined for each of the portions.

Since the mask body 12 shown in FIG. 1 is made of a soft urethane foam sheet that is soft and has excellent elasticity, the mask 10 is soft to the touch and a comfortable wearing comfort can be obtained.

Since the coating film 22 shown in FIGS. 5A and 5B is made of a urethane-based coating material having a high elasticity, the resistance of the coating film 22 to bending and expansion and contraction can be enhanced. Further, since the mask body 12 is made of urethane foam, the urethane-based paint has good adhesion to the mask body 12, which also enhances the durability.

As shown in FIG. 2, since the coating film 22 constitutes the patterns F1 and F2 on the outer surface P2 of the mask body 12, the design can be enhanced.

When the user M shown in FIG. 1 attaches / detaches the mask 10, the ear hooks 14a and 14b are pulled by hand, so that the boundary portion W between the mask body 12 and the ear hooks 14a and 14b and its vicinity ( The second part N2) is more susceptible to external force than other parts. As shown in FIG. 2, in the present embodiment, since the coating film 22 is formed on the second portion N2, it is possible to reinforce the second portion N2 by the coating film 22, and the mask main body 12 is damaged. Can be suppressed.

(Modification example)
The implementation of the present invention is not limited to the above-described embodiment, and various changes can be made as long as the object of the present invention is not deviated. That is, in the above embodiment, the coating film 22 shown in FIG. 2 constitutes the patterns F1 and F2 appearing on the outer surface P2 of the mask body 12, but the coating film 22 constitutes the pattern F1 and F2 appearing on the inner surface P1 of the mask body 12. A pattern (not shown) may be configured, or a pattern (not shown) appearing on the outer surface P2 and the inner surface P1 may be configured. Further, the coating film 22 does not necessarily have to form a pattern, and may have a square shape, a circular shape (oval shape), or an irregular shape.

Further, in each of the patterns F1 and F2 shown in FIG. 2, the thickness of the coating film 22 may be uniform or non-uniform. Further, the distribution density of the coating film 22 in the first portion N1 and the second portion N2 may be appropriately changed. In this case, the thickness of the coating film 22 can be such that the portion facing the mouth and / or nostril of the user M is thicker or has a higher distribution density than the other portions. Further, the coating film 22 may be coated with a coating material of another type or a different color (that is, recoating) after the coating material is applied to the mask body 12 and solidified. For example, the coating film 22 may be solidified by applying a coating material over the entire region of the first portion N1, and then a pattern F1 may be formed on the first portion N1 with a coating material different from this coating material. it can. This recoating can be performed on the second portion N2 and the third portion N3 in the same manner.

Further, the coating film 22 may be formed on the inner surface of the bubbles 20 in at least a part of the mask body 12, and the formation position thereof is not limited to the above embodiment. For example, the coating film 22 may be formed on the inner surface of the bubbles 20 in the entire mask body 12. Even in this case, the air permeability, foreign matter trapping property, and strength can be adjusted by changing the thickness or distribution density of the coating film 22 for each portion. Further, the coating film 22 can be formed over the entire area of the first portion N1 and / or the second portion N2. Further, the coating film 22 may be formed on at least one of the inner surface P1 and the outer surface P2 of the mask body 12. In this case, the coating film 22 can be formed at different positions on the inner surface P1 and the outer surface P2 of the mask body 12.

In addition, the first portion N1 was made substantially elliptical in front view so as to completely cover the area of the user's mouth, nose tip and nasal wing. However, the size and shape of the first portion N1 is not limited as long as it is a portion for which it is desired to improve the catchability of foreign matter. Therefore, the first portion N1 can also be formed in a size and shape that completely covers only the mouth. Further, as shown in FIG. 7, the first portion N1 has a radius of at least 30 mm (generally covering the mouth and the tip of the nose) centered on the central portion O (central portion in the vertical and horizontal directions) of the philtrum J on the face of the user M. Size), 50 mm (a size that covers about half of the chin part of the jaw) and 70 mm (a size that covers the entire chin part of the jaw) are set in the regions E1, E2, and E3 in the circle. Therefore, the catchability of foreign matter can be effectively improved.

As the coating material for forming the coating film 22 shown in FIGS. 5A and 5B, an acrylic paint, a fluorine-based paint, a silicon-based paint, or the like may be used instead of the urethane-based paint. Acrylic paints have the characteristic that the coating film is hard, and are suitable when it is desired to cure the coated portion. Fluorine-based paints are characterized by high antifungal properties. Silicon-based paints are characterized by high coating film durability, elasticity, and water repellency.

The coating material forming the coating film 22 shown in FIGS. 5A and 5B is not limited to the coating material, and other substances having the property of adhering to the inner surface of the bubble 20 may be used. For example, a room temperature curable resin, an ultraviolet curable resin, a thermosetting resin, or the like that becomes a coating film 22 by drying may be used, or an adhesive (including a spray-type adhesive) may be used.

As shown in FIG. 2, in the above embodiment, the coating film 22 is formed by using a colored coating material in order to form the patterns F1 and F2, but the coating film 22 is formed by using a colorless coating material. It may be formed.

As shown in FIG. 2, in the above embodiment, the coating film 22 is formed on the boundary portion W between the mask main body 12 and the ear hook portions 14a and 14b and the portion in the vicinity thereof (second portion N2). 22 may be formed in at least a part of the ear hook portions 14a and 14b. In this case, since the ear hooks 14a and 14b are reinforced by the coating film 22, the ear hooks 14a and 14b are not easily damaged even when the user M pulls the ear hooks 14a and 14b by hand. ..

FIG. 8 is a front view showing the configuration of the mask 28 according to another embodiment. In the mask 28 shown in FIG. 8, a coating film 22 is formed on the entire area of the first portion N1 and the entire area of the second portion N2 using a colorless coating material. Therefore, the patterns F1 and F2 are not formed on the outer surface P2 of the mask body 12. Further, in the mask 28 shown in FIG. 8, almost the entire left and right ear hook portions 14a and 14b are the third portion N3 whose strength is desired to be increased, and a colorless coating material is used for the third portion N3. The coating film 22 is formed. Therefore, even when the user M pulls the ear hooks 14a and 14b by hand, the ear hooks 14a and 14b are not easily damaged.

FIG. 9 is a front view showing the configuration of the mask 30 according to another embodiment. In the above embodiment, the mask 10 includes the ear hook portions 14a and 14b, but the ear hook portions 14a and 14b may be omitted as in the mask 30 shown in FIG. Further, instead of the ear hook portions 14a and 14b, a rod-shaped or string-shaped member that supports the mask body 12 with the neck or the back of the head may be used. The mask 30 shown in FIG. 9 is obtained by simply removing the ear hook portions 14a and 14b from the mask 10 shown in FIG. 3 (A), and is used by being attached to a mask holder 34 having the ear hook portions 32a. The same effect as that of the mask 10 can be obtained with the mask 30 as well.

M ... user, N1 ... 1st part, N2 ... 2nd part, S ... sheet, W ... boundary part, 10 ... mask, 12 ... mask body, 12a ... left side part, 12b ... right part, 14a ... left ear Hanging part, 14b ... Right ear hook part, 16a ... Left edge, 18a ... Right edge, 20 ... Bubbles, 22 ... Coating film, 24 ... Mold, 24a ... Through hole, 26 ... Spray gun, 28, 30 ... Mask, 32a ... Ear hook, 34 ... Mask holder.

Claims (11)

Equipped with a mask body that covers the user's mouth and nostrils
The mask body is formed of a foamed resin sheet having a large number of cells continuous with each other.
A coating film made of a coating material is formed on the inner surface of the bubbles in at least a part of the mask body .
The coating material constituting the coating film is a mask , which is a urethane-based paint . When the side of the surface facing the user's face at the mask body and the inner surface and the surface opposite the outer surface, the coating film constitutes a pattern appearing on the inner surface or said outer surface, claim The mask according to 1 . Equipped with a mask body that covers the user's mouth and nostrils
The mask body is formed of a foamed resin sheet having a large number of cells continuous with each other.
A coating film made of a coating material is formed on the inner surface of the bubbles in at least a part of the mask body .
When the surface of the mask body facing the user's face is the inner surface and the surface on the opposite side is the outer surface, the coating film constitutes the inner surface or the pattern appearing on the outer surface . Any of claims 1 to 3 , wherein the coating film is formed on the inner surface of the bubbles at least in the first portion when the portion of the mask body for which foreign matter is desired to be captured is set as the first portion. The mask according to item 1 . The first portion is a region within a circle having a radius of at least 30 mm centered on the center of the philtrum on the face.
The mask according to claim 4 , wherein the coating film is formed over the entire area of the first portion. The coating film is formed on the inner surface of the bubbles in the plurality of parts of the mask body.
Any one of claims 1 to 5 , wherein the thickness or distribution density of the coating film in one of the plurality of portions is different from the thickness or distribution density of the coating film in the other one. The mask described in. The mask according to any one of claims 1 to 6 , wherein the foamed resin constituting the sheet is urethane foam. It also has an ear hook that can be hung on the user's ear.
The present invention according to any one of claims 1 to 7, wherein the coating film is formed on the second portion when the boundary portion between the mask body and the ear hook portion and the portion in the vicinity thereof are used as the second portion. mask of. It also has an ear hook that can be hung on the user's ear.
The ear hook portion is made of the same material as the sheet and is integrally formed with the mask body.
The mask according to any one of claims 1 to 8, wherein the coating film is formed on at least a part of the ear hook portion. A method of manufacturing a mask including a mask body that covers the user's mouth and nostrils.
(A) The mask body is formed of a foamed resin sheet having a large number of continuous bubbles.
(B) A portion of the mask body for which foreign matter is desired to be captured is specified as an application target area.
(C) A coating material is applied to the coating target area to form a coating film on the inner surface of the bubbles .
In the step (b), the coating target area is specified by covering the periphery of the coating target area in the mask body with a mold.
In the step (c), a mask manufacturing method in which the coating material is applied to the coating target area by using a spraying method or a roller coating method . It is a catching property adjusting method for adjusting the catching property of a foreign substance in the mask body provided with a mask body covering the user's mouth and nostrils.
(A) The mask body is prepared with a foamed resin sheet having a large number of continuous bubbles.
(B) A portion of the mask body for which foreign matter is desired to be captured is specified as a coating target area.
(C) A coating material is applied to the coating target area to form a coating film on the inner surface of the bubbles .
In the step (b), the coating target area is specified by covering the periphery of the coating target area in the mask body with a mold.
In the step (c), a method for adjusting the catchability of a mask, in which the coating material is applied to the coating target area by using a spraying method or a roller coating method .

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