WO2009104442A1

WO2009104442A1 - Transparent respiratory mask

Info

Publication number: WO2009104442A1
Application number: PCT/JP2009/050801
Authority: WO
Inventors: 芳郎縄手
Original assignee: Nawate Yoshio
Priority date: 2008-02-18
Filing date: 2009-01-21
Publication date: 2009-08-27
Also published as: JP2009189676A

Abstract

A mask body (2) has a three-dimensional shape forming a space between the mask body and the oral-nasal portion of a user's face when the mask body is mounted on the face, and the mask body (2) is constructed from a transparent sheet material. An air opening (2a) vertical to the centerline (Z) of the face is formed in that lower part of the mask body (2) which is on the chin side. An air permeable raw material section (3) is provided to the air opening (2a) to cover the air opening. Because the air permeable raw material section (3) is engaged with the air opening (2a) which is generally horizontal when a mask (1) is mounted on the face, the air permeable raw material section (3) is positioned parallel to the line of sight of a person facing the user. Consequently, even if the air permeable raw material section (3) is opaque, the face is not largely concealed.

Description

Transparent breathing mask

The present invention relates to a breathing mask that covers a wearer's mouth and nose for hygiene, and particularly to a breathing transparent mask having a transparent front portion.

In general, a mask that covers a wearer's nasal cavity and mouth is a processed gauze or non-woven fabric, and is used so as to cover the entire nostril of the human face. Such masks are used in the following situations for the purpose of protecting the inhalation of fine particles in the air, preventing the diffusion of flying objects from the body, or protecting the mucous membrane of the respiratory system from dryness and cold air. And its versatility and need is growing.
Scene 1) When catching a cold and preventing it 2) During hygiene and treatment in medical settings 3) During dust work, machining and clean room 4) Pollen countermeasures 5 ) Dry and cold protection scenes in winter 6) Protection of exhaust gas and dust in industrial cities 7) Prevention of infectious diseases Various types of respirator masks for hygiene have been used so far. Improvements have been made, for example, a mask that can maintain a wide breathing space by applying a three-dimensional pleating process to a flat mask and fixing the mask and the face with a core (see Patent Document 1), and a mask By providing an intermediate layer between the exterior and interior gaps to make it detachable, the mask has a three-dimensional shape (see Patent Document 2) that can change performance according to the environment at the time of wearing. Face There is a mask (see Patent Document 3) in which a gap is hardly generated between the surface and the like.
JP 2007-61536 A JP 2007-21028 A JP 2008-191 A

However, the conventional one has a problem that the mouth and nose of the wearer cannot be seen well when the mask is worn because it is very difficult to make a transparent mask due to the characteristics of materials such as gauze and nonwoven fabric. In particular, when more than half of the face is covered with an opaque mask as in the prior art, a great sense of discomfort is caused to the person facing each other.

Therefore, in the present invention, the mouth and nose of the mask wearer can be seen well, and the same function as that of the conventional mask can be maintained, and used in a wide range of applications such as the above scenes 1) to 7) without any uncomfortable appearance. An object of the present invention is to provide a mask that can be used.

The present invention has the following features and solves the above problems.
First, since the mask main body is made of a material such as a transparent sheet material such as a transparent or translucent synthetic resin, most of the face is not hidden when worn.
Secondly, the mask main body has a three-dimensional shape in which a space is generated between the mask main body and the nostril.
Thirdly, the mask main body has a blowout opening whose opening direction is downward in the lower part of the chin side, and a breathable material part having air permeability is engaged in a manner of closing the blowout opening.

That is, the present invention relates to a mask main body portion formed of a transparent or translucent material, a locking portion for attaching the mask main body portion to the face, and a breathability formed of a breathable material. The mask main body portion is a three-dimensional shape in which a space is formed between the mask main body portion and the nose mouth portion when worn, and has a blowout opening whose opening direction is downward at the lower jaw side of the mask main body portion. The breathable material portion is engaged in a manner that closes a blowout opening provided in the mask main body portion.

The three-dimensional shape of the mask main body can be formed by joining both ends of a V-shaped cutout provided on the top of a transparent or translucent material and joining the V-shaped cutout.

According to the present invention, the face of the mask wearer can be seen well for the face-to-face person, and the expression can be seen naturally, the space created by the mask and the face of the wearer can be well sealed, This makes it possible to realize a mask that can be used without any sense of incongruity.

It is a perspective view of the transparent mask for respiration which concerns on this embodiment. It is a front view of the transparent mask for respiration which concerns on this embodiment. It is a front view at the time of wearing of the transparent mask for respiration concerning this embodiment. It is a horizontal view at the time of wearing of the transparent mask for respiration concerning this embodiment. It is a figure explaining how a breathable material part looks. It is a figure which shows the example of the shape of a blower opening. It is a figure which shows a mode that the transparent mask for respiration which concerns on this embodiment was folded. It is a figure which shows the example of the formation method of a collar part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Mask 2: Mask main-body part 2a: Blowing opening 2b: Centerline 2c: Bending part 2d: Gutter part 2e: Collar part 3: Breathable material part 4: Locking part 5a: Other eyes 5b: Other Visible line 6: V-shaped cutout 7: Joint Z: Center line of the face

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of the breathing transparent mask according to the present embodiment viewed obliquely and three-dimensionally, FIG. 2 is a front view of the breathing transparent mask according to the present embodiment as viewed from the front, and FIG. FIG. 4 is a front view when the breathing transparent mask according to the embodiment is worn, and FIG. 4 is a horizontal view when the breathing transparent mask according to the embodiment is worn. For clarity, the description will be made with the nose side direction at the time of wearing the mask as the upper part and the chin side direction as the lower part.

In the figure, 1 is a mask according to the present embodiment, 2 is a mask body made of a transparent (or translucent) sheet material, 2a is a blowout port provided at the lower part of the

mask body

2, and 2b is a mask body. The center line of the

part

2, 2c is a bent part, 2d is a collar part, 2e is a collar part, 3 is a breathable material part covering the blowout opening 2a of the

mask body part

2, and 4 is for attaching the mask body part 2 to the face For this purpose, Z represents the center line of the face.

The mask body 2 is a transparent synthetic resin such as polyethylene (PET), and has a hardness that can be firmly attached to the face while maintaining a three-dimensional shape, and chemical changes such as heat, humidity, acid and base, and electrolysis. The resin raw material, the manufacturing process, and the like are not particularly limited as long as they have sufficient strength. As a matter of course, the synthetic resin to be used can be selected from those having different properties with respect to hardness, temperature, humidity, and the like according to each use application, use place, and use purpose of the wearer.

The mask main body 2 is symmetric with respect to the center line 2b, and has a three-dimensional shape in which a space is formed between the nose and mouth when worn, as shown in FIG. 4, and has a bent portion 2c in a V shape at the top. By bending the bent portion 2c into a convex shape, the flange portion 2d is formed on the upper portion. The mask body 2 is bent at the center line 2b in the shape of a "<" or a parabola in the lateral direction, and holds the mask body over the nose wings using the heel 2d, The centerline 2b is exerted on the face when it is worn using the buttocks 2d, and the centerline 2b is parallel to the center plane of the face as shown in FIG. So that the mask main body 2 does not jump out of the face of the wearer. In this way, the mask main body 2 is directed toward the face from the intersection of the center line 2b and the left and right bent portions 2c, and the mask main body 2 can be accommodated in the mask main body 2 without any discomfort in the face such as the nose or mouth. The

Further, the mask body 2 has a collar 2e, and has a three-dimensional shape covering the face nose, cheek, and chin as shown in FIGS. 3 and 4 along the collar 2e. Moreover, it has a downward opening 2a on the lower side of the jaw. The blowout opening 2a is formed in a substantially elliptical shape, a substantially semi-elliptical shape, or a substantially triangular shape on a surface perpendicular to the center line Z of the face when worn. It is also possible to cover the mask main body 2 up to the entire cheek within a range that does not impair the object of the present invention.

The air-permeable material part 3 is provided in a shape that closes the blowout opening 2a portion of the mask body part 2. The breathable material portion 3 is made of a breathable fiber such as a nonwoven fabric or gauze, but the raw material, processing method, and lamination conditions are not particularly limited. For example, as the raw material, synthetic fiber, regenerated fiber, natural fiber, or mixed fiber processed with two or more of these may be used. Moreover, in the case of a nonwoven fabric as a processing method, you may use the nonwoven fabric manufactured by well-known manufacturing methods, such as a spalace nonwoven fabric, a spun bond nonwoven fabric, a thermal bond nonwoven fabric, a melt blown nonwoven fabric, a needle punch nonwoven fabric. The lamination condition may be a laminated nonwoven fabric having a layer made of an SMS nonwoven fabric or an SMMS nonwoven fabric, which is impregnated or kneaded with a photocatalyst, a silver-based antibacterial agent, or a mixture thereof. Various fibers can be employed according to each use application, use place, and use purpose of the wearer.

The breathable material portion 3 is engaged at the peripheral edge of the blowout port 2a, fits into the blowout port 2a and covers the blowout port 2a, and the covering surface does not hang down with respect to the center line Z of the face. So that it is almost vertical. Thereby, the visible range of the opaque nonwoven fabric or the gauze at the time of wearing becomes considerably smaller than the actual area.

The locking portion 4 is in the form of an ear strap, or a head strap in which the strap is attached to the back of the head, or a notch hole that is elongated in the sheet material separate from the mask body 2. Or it is a form which provided the slit, and in order to fix the mask tightly to the face, it joins to the suitable position of the upper part of mask main-body part 2. FIG. In the case where the locking portion 4 has a form in which a sheet material is provided with an elongated cutout hole or slit, the mask main body portion 2 and the locking portion 4 may be integrally formed.

The material of the locking portion 4 is a stretchable nonwoven fabric used in conventional masks, or an elastic elastic member such as rubber thread when the locking portion 4 is an ear strap or a head strap A stretchable nonwoven fabric or the like sandwiching between layers may be used, but a transparent fabric having stretchability and elasticity is particularly preferable. For example, an elastic stretchable transparent film is used as a raw material, and the surface thereof is covered with an almost transparent absorbent polymer that is less irritating to the skin.

The members of the mask main body part 2, the breathable material part 3 and the locking part 4 can be engaged with each other by known joining means such as hot melt adhesion, heat seal adhesion, ultrasonic welding, and heat compression welding. In addition, each member may be secured using, for example, a mechanical fastener so that it can be freely attached and detached once or more. In this case, the parts of each member can be replaced and replaced. For example, the mask main body 2 is washed and used again, and the breathable material portion 3 or the locking portion 4 is changed from a used one to an unused one. It can be attached to the reusable mask body 2.

According to the above-described embodiment of the present invention, the mask body 2 having a three-dimensional shape formed of a transparent sheet material covers the wearer's mouth, nose, and cheeks. The mask main body 2 has a blowout opening 2a perpendicular to the center line Z of the face at the lower part of the jaw when worn, and the blowout opening 2a is engaged so that the breathable material part 3 covers it. Therefore, even if the breathable material portion 3 is located substantially perpendicular to the center line Z of the wearer's face and the breathable material portion 3 is opaque, the breathable material portion 3 is visible to others. The area is smaller than the actual area. Therefore, the area of the breathable material portion 3 can be increased so that the barrier function as a foreign matter removal filter and the breathability function for breathing can be sufficiently exhibited without any unnatural appearance.

Referring to FIG. 5, the extent to which the visible area of the breathable material part 3 from others when the mask of the present invention is worn will be described with reference to FIG. FIG. 5 schematically shows the positional relationship between the mask wearer and the other person from the side, 5a represents the eyes of the other person, and 5b represents the visible line from the other person.

If the actual area of the breathable material part 3 stretched perpendicularly to the center line of the face is S and the angle between the breathable material part 3 and the visible line 5b is θ, The visible range from is S × sin θ, which is considerably smaller than the actual area. For example, when another person with a height difference of 15 cm looks at the mask wearing at a distance of 50 cm from the mask wearer, the angle θ formed by the breathable material portion 3 and the visible line 5b is about 15 degrees, and the visible range Is about a quarter of the actual area. The farther the distance between the other person and the mask wearer is, the smaller the visible range becomes. The smaller the angle θ formed between the breathable material portion 3 and the visible line 5b, the better visually, but if it is 30 degrees or less, the expression is hardly hidden. More preferably, the angle θ is 20 degrees or less.

The position of the blowout opening 2a covered by the breathable material portion 3 only needs to be below the mouth at the time of wearing, and whether or not it is under the chin is not particularly limited, but the breathable material portion 3 considerably smaller than the visible area. In consideration of increasing the actual area and enhancing the sealing of the space formed by the mask and the face, it is preferably under the chin. The shape of the blowout port 2a is any of an approximately elliptical shape, an approximately trapezoidal shape, and an approximately triangular shape as shown in FIGS. 6A to 6C when viewed from above when the mask is mounted. However, an important point about the shape is to enhance the sealing of the space formed by the mask and the face. In FIG. 6, the right side of the figure is the wearer's face side.

Furthermore, the shape of the breathable material portion 3 may be perpendicular to the center line Z of the face when worn, but in order to increase the actual area of the breathable material portion 3, the shape is curved upward. At this time, a molding core material may be attached to the breathable material portion 3. The breathable material portion 3 may be pleated.

In particular, since the breathable material part 3 covering the blowout opening 2a in this embodiment does not directly hit the nose or mouth when worn, the inorganic antibacterial material, antibacterial deodorant material, and fragrance used in the breathable material part 3 are conventionally used. It can be used with a wider tolerance than that of the mask.

The collar portion 2e of the mask main body 2 is a portion where the face and the mask come into contact with each other and is preferably bent with respect to the mask main body 2 but may not be bent. In addition, in order to avoid the impression of pressure contact and wearing discomfort, that is, itching and pain, almost transparent absorbent polymer, thin non-woven fabric and thin layer of gauze are added to the collar 2e to the skin. It is also preferable to reduce the irritation.

Since the material of the mask body 2 is harder than a mask using a conventional nonwoven fabric, the mask body 2 is kept in close contact with the face of the wearer while maintaining the three-dimensional shape of the mask body 2. It is possible to seal the generated space well for a long time and further widen the space. Therefore, it is possible to talk with the mouth wide open while wearing the mask, and it is possible to prevent the attachment of lipstick and makeup.

Further, the mask of the present embodiment can be folded, and can be folded flat to some extent, for example, as shown in FIG. Therefore, the storage property is also excellent.

Further, a breathable function may be enhanced by providing a cutout hole other than the blowout opening 2a in a part of the mask body 2 and covering the cutout hole with a nonwoven fabric or gauze.

Also, the material of the mask body 2 may be a sheet material for preventing ultraviolet rays, the sheet material may be colored within a range where the wearer's mouth and nose can be seen, or a pattern may be drawn. Even if the mask main body 2 is colored in a range where the mouth and nose are not visible, the mask adheres well to the face while maintaining the three-dimensional shape of the mask main body 2, and the space generated between the mask and the face is lengthened. The effect of being able to seal well and widen the space is utilized.

The breathable material of the breathable material portion 3 is not limited to white, and a colored material may be used, and the locking portion 4 may also be colored.

Further, the cloud inside the mask main body 2 due to the breathing breath of the wearer greatly influenced by the temperature environment at the time of wearing, for example, a transparent thin film processed with cellulose having a high moisture permeability and absorptivity. It can be considerably suppressed by adding it inside the mask body 2 or using a material processed so as to have high moisture permeability and absorbability as the material of the mask body 2.

FIG. 8 shows an example of a method for forming the flange 2d in the mask main body 2. The flange portion 2d can be formed by bending a synthetic resin material that is a material of the mask main body portion 2 by heating, but can also be formed as follows.

As shown in FIG. 8A, the upper part of the sheet material of the mask main body 2 is cut out in a V shape, and a V-shaped cutout portion 6 is provided. The both ends of the V-shaped cutout 6 are put together and joined at the joint 7 as shown in FIG. By doing so, it is possible to easily form a three-dimensional shape so that the heel portion 2d is placed on the nose when worn, and an appropriate space is formed between the mask main body portion 2 and the nostril portion.

Claims

It is composed of a mask main body portion formed of a transparent or translucent material, a locking portion for attaching the mask main body portion to the face portion, and a breathable material portion formed of a breathable material. ,
The mask main body has a three-dimensional shape in which a space is created between the mask main body and the nose mouth, and has a blowout opening whose opening direction is downward at the lower jaw side of the mask main body,
The breathable transparent mask is characterized in that the breathable material portion is engaged in a mode of closing a blowout opening provided in the mask main body portion.
The three-dimensional shape of the mask main body is formed by joining both ends of a V-shaped cutout provided on the top of a transparent or translucent material and joining the V-shaped cutout. Item 2. A breathing transparent mask according to Item 1.