TW201521825A - Face mask with a sheet for diverting breathing-out air - Google Patents

Abstract

The present invention is related to a face mask with a sheet for diverting exhaled air, comprising an air-permeable body, a seal, and at least one elastic strap. The seal is positioned on the inner surface of the air-permeable body, is attached to the nose and fills the space between the nose and the face mask. The seal has a thin sheet that can divert the air exhaled from the mask-wearer away the upper edge of the mask. The face mask also comprises a layer placed in the air-permeable body. Water can be added to the layer to adjust the humidity of the air inhaled by the mask-wearer. An aromatic can be added to the layer to reduce the unpleasant odor caused by prolonged use of the mask. The mask can also be provided with a buckle to adjust the length of the elastic strap.

Description

Mask with exhaled gas guiding sheet

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a mask, and more particularly to an air-conditioning air that can be attached to a mouth and nose of a face and that can be exhaled by a mask wearer. The mask also has the function of adjusting the humidity of the inhaled air, reducing the odor of the inhaled air and adjusting the tightness.

As a personal hygiene protection tool, masks must be used on different occasions, including medical settings or dusty environments. In medical settings, such as hospitals, doctors, nurses, patients, or their families often need to wear masks to protect themselves or others from airborne pathogens or contaminants. Workers in dusty environments need masks to avoid inhalation of particulate or airborne contaminants in the environment and affect lung health. Contaminants in the floating air, including atomized saliva, bacteria, viruses, dust or any particles that can be suspended in the air.

According to the degree of protection, the current masks are roughly divided into two types, one is a N95 mask, and the other is a common flat mask. N95 mask refers to a mask with a higher level of protection as recognized by the National Institute for Occupational Safety and Health (NIOSH). "N95" means that the mask blocks about 95% of the particles of 0.3 microns and larger. Therefore, in general, the masks tested provide good protection to the wearer to avoid inhaling harmful particulates or airborne contaminants.

Commonly used flat masks, such as users in medical institutions, with their faces The fit is not as good as the N95 mask, so its ability to filter airborne contaminants is not as good as the N95 mask, but at a lower cost. In use, the flat mask is generally unfolded from the flat and folded substrate, and then covers the wearer's mouth and nose and is fixed on the face. At this time, there is a gap between the wearer's face and the mask. produce. While the planar mask still prevents direct contact with the airborne contaminants, this void allows airborne contaminants to pass through the edge of the mask and be inhaled by the wearer.

The applicant of this case previously filed a cover invention patent application and a new patent application on July 5, 2013. The patent application numbers are 102124309 and 102212829 respectively. The invention proposes an improvement against the disadvantages of poor sealing of a flat mask, the most important feature of which is that it has a sealing member which can effectively provide a sealing effect.

Wearing a mask often encounters a problem that if the wearer wears glasses, the air with the moisture of the exhaled air often adheres to the spectacle lens after passing through the mask, which hinders the vision.

In addition, the wearing of the mask is usually fixed to the wearer's mouth by a tightening strap or an elastic band. However, the use of the tightening strap usually requires the assistance of others; while the elastic strap is flexible, although the length can be adjusted to a limited extent without the assistance of others, the elastic strap is inevitable for the wearer with larger or smaller head shape. Too tight to cause uncomfortable wearing, or too loose to affect the mask sealing effect.

In addition, masks can not be odor-prone when worn for a long time. For those who need to wear masks for a long time, the odor of the mask will also cause trouble, and even affect work mood and efficiency.

Therefore, there is still a need for a mask that can closely fit the wearer's face at the same time, reduce the adhesion of moisture to the lens, wear a convenient and non-fake person, wear comfortably, and wear for a long time to prevent odor.

In view of the above disadvantages of the prior art masks, it is an object of the present invention to provide a mask which not only increases the airtightness between the mask and the wearer's face, but also effectively The ground block exhaled air upwards, does not feel uncomfortable when worn for a long time, and can reduce the odor that is felt when worn for a long time.

The mask of the present invention comprises: a body, a sealing member and at least one elastic band. The structure of the body can be further divided into an outer layer, a middle layer, and an inner layer. The seal engages the inner surface of the body and conforms to the bridge of the nose and fills the gap between the mask and the bridge of the nose and cheek. The at least one elastic band is coupled to a side of the body for securing the mask to the wearer's face. The mask may optionally include an interlayer that may be pre-disposed within the body of the mask or attached to the mask and placed within the body of the mask as desired by the user.

One of the main features of the present invention is that the seal has a sheet to cover the upper edge of the inner surface of the body. The sheet and the sealing member form a convex shape on the two sides of the corresponding bridge of the nose to fit the bridge of the nose and fill the gap between the mask and the bridge of the nose and the cheek to effectively block the upper edge of the air-conditioning air guiding mask exhaled by the mask wearer, that is, The sheet can guide the exhaled air away from the upper edge of the mask, so that the exhaled air passes through other parts of the mask to the outside of the mask, thereby reducing the moisture in the exhaled gas from adhering to the wearer's glasses. Avoid glasses fogging.

According to the mask of the present invention, the main body is a flat shape when folded, and is a three-dimensional three-dimensional shape when opened to match the shape of the wearer's face. In one embodiment, the main body is composed of left and right main bodies in a planar shape, and the left and right main bodies are symmetrical, one side of which is convexly curved, and the outer convex arc edges are combined so that after being combined into one main body, It is flat when folded, and has a three-dimensional shape when opened to match the shape of the wearer's face. The left and right bodies have a concave arc shape at the middle of the other edge and an upper lug portion and a lower lug portion at the upper corner and the lower corner, respectively. Two ends of an elastic band are respectively fixed to the upper lug portion and the lower lug portion. The design allows the elastic band to be combined with the mask body to form an up-and-down horizontal pull, so that both sides of the mask body are flattened on both sides of the wearer's face without creating a gap.

According to an embodiment of the invention, the seal of the mask is on both sides of the corresponding bridge of the nose A protrusion is formed to fit the bridge of the nose and fill the gap between the mask and the bridge of the nose and cheek.

According to an embodiment of the invention, the body of the mask may comprise an inner layer, a middle layer and an outer layer, all of which may be formed of any breathable cloth, and the preferred material is a non-woven fabric. However, the middle layer, because it is related to the mask filtering function, the preferred material is a melt-blown fiber material.

According to an embodiment of the present invention, the layer portion of the mask body may be made of a material that is 95% of 0.3 micron or larger in the filterable air, that is, a material conforming to the N95 standard.

According to one embodiment of the invention, the body of the mask can filter particles or contaminants from about 0.1 microns to 4.5 microns in the air.

According to an embodiment of the invention, the sealing member may be selected from the group consisting of silicone, thermoplastic elastomer (TPE), ethylene vinyl acetate (EVA), and polyurethane ( Polyurethane, PU), polyphenolic ether (PPE) and a mixture of elastic materials composed of a mixture.

According to an embodiment of the present invention, the elastic band of the mask is fixed to the mouth of the wearer, and the adjusting buckle is attached. If the elastic band needs to be adjusted during use, only the elastic band of the adjusting buckle can be pulled. Complete the adjustment.

A sandwich sheet may be disposed between the inner layer and the middle layer of the mask body, and the sandwich sheet may be a humidifying sheet so that the inhaled air is not too dry. The sandwich sheet can also be added with a fragrance to reduce the odor of the mask that is felt when the mask is worn for a long time.

10‧‧‧ masks

20‧‧‧ Subject

22‧‧‧ outer layer

24‧‧‧ Middle

26‧‧‧ inner layer

40‧‧‧Seal

40'‧‧‧Seal

42‧‧‧ convex

42'‧‧‧ convex

44‧‧‧Support ribs

44'‧‧‧Support ribs

46‧‧‧Sheet

46'‧‧‧Sheet

50‧‧‧elastic band

52‧‧‧Adjustment buckle

60‧‧‧Mezzanine

221‧‧‧Left subject

222‧‧‧right subject

223‧‧‧ edge

224‧‧‧Upper lugs

225‧‧‧lower lugs

226‧‧‧ edge

227‧‧‧ concave curved

The present invention is not limited to the scope of the present invention, and is not intended to limit the scope of the present invention. It is understood that the scope of the present invention is not limited to the drawings. The elements shown may be included in the elements of the invention as generally recognized in the art to which the invention pertains. Further, the drawings of the present invention are not intended to represent actual dimensions or ratios of the present invention.

1 is a perspective view of the outside of an embodiment of the present invention.

Figure 2 is an inside perspective view of an embodiment of the present invention.

Fig. 3 is a view showing the state in which the pocket of the sandwich sheet is opened in the embodiment shown in Fig. 2.

Figure 4 is an inside perspective view of another embodiment of the present invention.

Fig. 5 is a view showing the state in which the pocket of the sandwich sheet is opened in the embodiment shown in Fig. 4.

Figure 6 is an exploded view of the embodiment of Figure 4.

Figure 7 shows an embodiment of a seal.

Figure 8 is a bottom perspective view of the seal of Figure 7.

Figure 9 shows another embodiment of the seal.

Figure 10 is a bottom perspective view of the seal of Figure 9.

The present invention relates to a mask 10 (shown in Figures 1 and 2) that provides a tighter contact with the face, i.e., the inhaled air does not pass through the gap between the mask and the face, thus The air inhaled by the wearer passes almost entirely through the body 20 of the mask, so that a better filtering effect is achieved.

To this end, the mask 10 of the present invention is provided with an elastic material seal 40 which is soft and less susceptible to skin irritation on the inner side surface corresponding to the bridge of the nose, as shown in Figs. The main feature of the sealing member 40 is that a protrusion 42 is provided corresponding to the undulation of the nose bridge portion to improve the disadvantage that the conventional mask is not easily sealed at the contact with the nose bridge. The sealing member 40 is along the upper edge of the inner surface of the mask body 20. Let's set it up, as shown in Figures 2 and 7. To achieve a more effective sealing effect, the seal can be designed as a closed loop that is disposed along the periphery of the inner surface of the mask body 20, as shown by seal 40' in Figures 4 and 9. When the mask is worn, the seal 40 (or 40') is in contact with the wearer's face, and since the seal is made of a soft elastic material, it does not cause the wearer to feel uncomfortable.

According to an embodiment of the invention (as in Figures 7 and 9), the projection 42 (or 40') of the seal 40 (or 40') has a curved outer portion, a hollow interior, and a support rib 44 (see Figure 8) or 44' (see Figure 10). The purpose of the protrusion of the seal being hollow is to provide a moderately soft property, and the purpose of providing the support rib 44 (or 44') is to provide a moderate structural strength of the protrusion 42 (or 42') so that the mask When fitted, the seal can match the shape of the wearer's face to maintain the airtightness of the mask and face.

As described above, the sealing member can provide a tight contact between the mask and the face, but the sealing member is not necessarily integrated as in the foregoing embodiment, but has the function of filling the gap between the mask and the bridge of the nose and the cheek. The protrusions on both sides of the bridge of the nose are respectively arranged.

The elastic material used in the sealing member of the invention can reduce the burning sensation of the skin and increase the comfort of the wearer's face contact. The elastic material may be a liquid resin such as, but not limited to, silicone, thermoplastic elastomer (TPE), ethylene vinyl acetate (EVA), polyurethane (polyurethane). PU), polypheylene ether (PPE) and mixtures thereof. In one embodiment, the seal of the present invention comprises a foam of a resin blended with TPE/EVA. In a preferred embodiment, the seal of the present invention further comprises a polyurethane to reduce the burning sensation of the skin and increase the comfort of the wearer's face contact.

One of the main features of the present invention is that the seal 40 (see Figures 7 and 8) or 40' (see Figures 9 and 10) has a sheet 46 or 46'. The sheet is bonded to the upper edge of the inner surface of the body 20 of the mask 10 and covers the inner surface of the mask body along the upper edge with a width of 1 to 5 cm.

A mask often has a problem, that is, the lens of the wearer is often exposed by the moisture in the air, which hinders the vision and affects the work. The case where moisture adheres to the spectacle lens often occurs at a lower temperature. The sheet 46 (or 46') of the seal 40 (or 40') covers the upper edge of the inner surface of the mask body 20, and the seal 40 (or 40') forms a projection 42 at the sides of the corresponding bridge of the nose (or 42') fits the bridge of the nose and fills the gap between the mask and the bridge of the nose and cheeks to prevent exhaled air from passing through the upper edge of the body 20. Since the upper edge of the main body 20 is closer to the glasses, the air with moisture passes through the upper edge of the main body 20 to easily condense on the spectacle lens to fog the lens. Providing a sheet 46 (or 46') at the upper edge of the body 20 blocks the exhaled air from the upper edge of the mask body 20. By the contrary, the exhaled air can be guided to the middle and lower edges of the mask body 20 which is far from the glasses, so that the moisture in the exhaled air is not easily condensed on the lens.

In accordance with an embodiment of the present invention, the body 20 of the mask 10 can include an outer layer 22, a middle layer 24, and an inner layer 26, see FIG. The layers can be comprised of any material that can filter pathogens or airborne contaminants and is suitable for contact with the skin, such as, but not limited to, non-woven natural, synthetic or blended materials or woven materials. Nonwoven materials comprise fibers or filaments that are bonded together mechanically, thermally or chemically. Suitable natural materials include, for example, but are not limited to, wool, silk, and fibers (including, for example, but not limited to, cotton, wood, or pulp). Suitable synthetic materials include, but are not limited to, polyolefins (e.g., including, but not limited to, polyethylene, polypropylene, polyester, polyamine and blends thereof, laminates, and copolymers). Thermoplastic or non-thermoplastic materials can be used, but the convenience of welding is considered, and thermoplastic materials are preferred. Both woven and non-woven materials can be used, but for most mask applications, non-woven materials are preferred.

In an embodiment of the present invention, the main body of the mask, especially the middle layer 24 thereof, is a filter material for the relationship of the mask, and the preferred material is a melt-blown fiber material capable of filtering 95% of the air to 0.3 micrometers or more. The particles, or particles of 0.1 micron to 4.5 microns in the air.

According to the mask 10 (see Fig. 1) of the present invention, the main body 20 has a three-dimensional shape when it is opened to match the shape of the wearer's face, and is flat when folded. The main body 20 is composed of left and right main bodies 221, 222 having a planar shape. The left and right main bodies 221, 222 are symmetrical, and one edge 223 is convexly curved and combined with the curved edge 223 so that after being combined into a main body 20, the main body 20 is combined. The folding time is flat; when opened, it has a three-dimensional shape to match the shape of the wearer's face. The other edge 226 of the left and right bodies has a concave curved shape 227 and an upper lug portion 224 and a lower lug portion 225 are formed at the upper corner and the lower corner, respectively.

Two ends of an elastic band 50 are respectively fixed to the upper lug portion 224 and the lower lug portion 225. This design allows the elastic band 50 to be formed up and down and horizontally when the user wears the mask. The force is applied so that both sides of the mask body 20 are flattened on both sides of the wearer's face without warping and voids.

The elastic band 50 is provided with an adjustment buckle 52 (see FIGS. 1 to 6) for facilitating adjustment of the tightness of the elastic band 50. Although the elastic band 50 is elastic, its length can be stretched to a limited extent, but the size of the mask is usually not differentiated when sold, and may be too tight for some wearers in the case of only a single size, Some wearers may be too loose. If the mask is too tight, it will be uncomfortable for those who need to wear it for a long time. If it is too loose, it will cause the mask to be poorly sealed and lose the effect of wearing a mask. The adjustment buckle 52 is configured to allow the wearer to adjust the proper tightness as desired.

The mask of the present invention may also include a sandwich sheet 60 disposed within the mask body 20. In an embodiment of the invention, the interlayer sheet 60 is disposed between the inner layer 26 and the intermediate layer 24. 3 and 5, the inner layer 26 and the middle layer 24 may be in the form of a pocket. Opening the pocket allows the sandwich sheet 60 to be placed between the inner layer 26 and the middle layer 24. The interlayer sheet 60 may or may not be added with a wetting agent to adjust the humidity of the inhaled air, or a fragrance may be added to reduce the odor generated when the mask is worn for a long time. The interlayer sheet 60 can be preset in a mask, and the sandwich sheet 60 can be a dry filter sheet or a moisturizer or fragrance has been added. The sandwich sheet 60 can also be an accessory for the mask, which allows the wearer to add the wetting agent or fragrance to the mask body 20 as needed.

The embodiments described above are intended to provide a better understanding of the present invention and to enable them to be implemented by the ordinary skill in the art to which the present invention pertains, which is a preferred embodiment of the present application. The scope of the present invention is intended to be limited by the scope of the invention, and the invention is intended to be understood by those skilled in the art.

20‧‧‧ Subject

22‧‧‧ outer layer

24‧‧‧ Middle

26‧‧‧ inner layer

40‧‧‧Seal

42‧‧‧ convex

46‧‧‧Sheet

50‧‧‧elastic band

52‧‧‧Adjustment buckle

60‧‧‧Mezzanine

Claims (16)

A mask comprising: a body having left and right bodies, which are combined to form a three-dimensional shape having an outer surface and an inner surface, which may cover an oronasal portion; and a sealing member disposed at least at a portion corresponding to the bridge of the nose and coupled to The inner surface of the body has a sheet to cover the upper edge of the inner surface of the body; at least one elastic band is attached to the side of the body for fixing the mask to the wearer's face. A mask according to claim 1, wherein the sheet of the seal has a width of 1 to 5 cm. A mask according to claim 2, wherein the seal is composed of an elastic material. The mask of claim 3, wherein the elastic material is selected from the group consisting of silicone, thermoplastic elastomer (TPE), ethylene vinyl acetate (EVA), and polyurethane (polyurethane). , PU), a group of polypheylene ether (PPE) and mixtures thereof. The mask of claim 3, wherein the upper side of the seal has a convex shape at a position corresponding to both sides of the bridge of the nose to fit the bridge of the nose and fill a gap between the mask and the bridge of the nose and the cheek. The mask of claim 5, wherein the protrusion of the seal has a curved outer surface, a hollow interior, and a support rib. The mask of claim 6, wherein the seal is disposed along an upper edge of the mask body. The mask of claim 6 wherein the seal is disposed along the periphery of the mask body and is in a closed loop. The mask of claim 6, wherein the elastic band is provided with an adjustment buckle to adjust the tightness. A mask as claimed in claim 6 wherein the body comprises an inner layer joined to the seal, a middle layer bonded to the inner layer, and an outer layer bonded to the intermediate layer. The mask of claim 10, further comprising a sandwich sheet disposed between the inner layer and the intermediate layer. The mask of claim 11 is a dry sheet. The mask of claim 11, wherein the sandwich sheet is a moisturizing sheet. A mask according to claim 11, wherein the interlayer sheet is capable of adding a fragrance. The mask of claim 1, wherein one of the left and right main bodies has an outer convex arc, and is combined with the outer convex arc edge, so that when combined into a main body, it is flat when folded, and has a three-dimensional shape when opened. The mask of claim 15, wherein the left and right sides have a concave arc shape at the middle of the other edge and an upper lug portion and a lower lug portion at the upper corner and the lower corner, respectively. They are respectively fixed to the upper lug portion and the lower lug portion.