Inner film face mask

A transparent shield attached to the inside edge of a nonwoven mask using adhesive gaps for a chimney effect addresses detachment issues, ensuring secure adhesion and effective protection against viruses and pollen.

JP2025141940APending Publication Date: 2025-09-29中松义郎
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Patent Information

Application Number
JP2025040774
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-15
Filing Date
2025-03-14
Publication Date
2025-09-29

AI Technical Summary

Technical Problem

Conventional masks with attached shields for eye protection often detach due to weak adhesion, reducing breathing efficiency and causing breathlessness, especially when the mask shape changes.

Method used

A transparent shield is attached to the inside edge of a nonwoven mask using adhesive, creating gaps for a chimney effect and eliminating the need for metal fittings, ensuring secure adhesion without breathlessness.

Benefits of technology

The shield remains attached even when the mask changes shape, maintaining efficient breathing and protecting against viruses and pollen without causing discomfort.

✦ Generated by Eureka AI based on patent content.

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  • Figure 2025141940000001_ABST
    Figure 2025141940000001_ABST
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Abstract

To provide a face mask with an efficient area that allows for easy breathing through the mask, as well as a transparent body shield that adheres well to the mask without falling off.SOLUTION: An outer side of a lower edge of a transparent body for covering the eyes is coupled to an inner side of an upper edge of a non-woven fabric face mask.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to a sanitary mask or a shield for a sanitary mask. [Background technology]

[0002] Even though the COVID-19 alert has been relaxed, the number of infected people is still high, which is a problem, although it is not widely reported. Also, masks are essential not only for preventing COVID-19 infection but also for preventing influenza and other viruses, as well as yellow dust. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-142654 A Summary of the Invention [Problem to be solved by the invention]

[0004] Patent Document 1 discloses a shield that is attached to a mask to prevent foreign matter, viruses, etc. from entering the eyes. However, in order to firmly adhere the conventional shield to the mask, it is attached to a wide portion at the top of the mask (L1 in Figure 1), which reduces the efficiency of the area for breathing through the nonwoven mask and can cause breathlessness. This is because when a shield is attached to a conventional nonwoven mask, it is curved to fit the face, so if the adhesion around the periphery is weak, problems such as the shield and mask becoming detached when the nonwoven mask changes shape, for example, by moving the mouth. In particular, when changing the shape of the mask using metal fittings at the top of the mask to fit the nose, even if the shield near the nose is cut out as is known, the elasticity of the shield can cause it to come off and lose its adhesion to the mask, causing the shield to come off. The present invention has solved this problem. [Means for solving the problem]

[0005] The present invention is a mask characterized in that the inside of the upper edge of the mask made of nonwoven fabric or the like is joined to the outside of the lower edge of a transparent body that covers the eyes. This mask does not require metal fittings to fit the shape of your nose. The bond may be by adhesive, which may or may not be removable. The joining section is a method of providing a gap between the mask of the present invention and the area around the nose on the face without adjusting the upper end of the mask made of nonwoven fabric or the like to fit the nose shape. A member such as a face-contact cushion may be provided on the inside of the lower edge of the transparent body. A transparent body for protecting the surface of the nonwoven fabric mask may be provided on the outside of the nonwoven fabric mask. [Effects of the Invention]

[0006] The present invention has great advantages. (1) There is no need for metal fittings to fit the nose shape. (2) The lower edge of the transparent body is attached only to the metal part at the top of the mask that fits the nose shape, so the area for breathing through the mask is efficient and does not cause breathlessness. (3) By adhering the transparent body to the inside of a conventional mask so that the entire lower edge of the transparent body is inside the mask, the transparent body shield of the present invention will not come undone even if the mouth or other parts of the face are moved or the mask is curved to fit the face. (2) A gap is created between the shield of the present invention and the nose area of ​​the face, and a chimney effect occurs when body temperature or exhaled air causes an updraft, preventing viruses and other pathogens from entering from the sides of the shield of the present invention. (3) This shield serves as a cover for the publicly known mask. (4) Not only can it protect against viruses such as coronavirus that enter through the eyes, but it also protects against pollen and is effective against hay fever. (5) The pressure applied to the conventional mask acts on the shield, so that it can be bonded to the conventional mask with weak adhesive force, resulting in a strong bond. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram showing a known mask shield. [Figure 2]FIG. 1 is a diagram showing a first embodiment of the present invention. [Figure 3] FIG. 1 is a diagram illustrating the principle of a first embodiment of the present invention. [Figure 4] 1A to 1C are diagrams showing second to fourth embodiments of the present invention. [Figure 5] 10 is an enlarged side cross-sectional view of the present invention in which a mask 3 and a transparent body 4 are joined together, showing fifth and sixth embodiments of the present invention. FIG. [Figure 6] FIG. 10 is a diagram showing a seventh embodiment of the present invention. [Figure 7] FIG. 13 is a diagram showing an eighth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0008] As shown in Figure 1, a conventional mask 3 made of nonwoven fabric or the like that covers the nose and mouth does not cover the eyes, so it cannot prevent the entry of viruses. For this reason, a shield 1 is attached to the upper outer edge of the mask over the eye area, as shown by the arrow in Figure 1(C). However, the shield attached to the mask can peel off due to the mask material, bending of the mask, vibration, wind, etc. Therefore, in order to firmly adhere the shield to the mask, the adhesive strength must be increased, or the dimension L1 of the overlapping portion of the mask and shield must be increased as shown in Figure 1(B). In addition, a metal fitting (nose fit) 32 is provided on the upper edge of the mask to fit the shape of the wearer's nose.

[0009] In contrast, the present invention is a groundbreaking invention with many functions: it is a cost-effective mask with a transparent shield that is very easy to wear and does not slip off to protect the eyes. An embodiment of the present invention will be described below.

[0010] [First embodiment of the present invention] The first embodiment of the present invention is an example characterized in that an adhesive portion 2 is provided on the outer side of the lower edge of a transparent body 4 and is adhered to the inner side of the upper edge of a mask 3 made of breathable nonwoven fabric or the like, as shown in Figures 2 and 3. 2(A) is a front view of the transparent shield 4, with an adhesive part 2 provided on the lower edge of the surface. The width of this transparent shield 4 is the same as that of a mask, the height is high enough to protect the eyes, and the thickness is thick enough to be bent. Figure 2(B) is a side cross-sectional view of (A), and the adhesive part 2 at the lower edge of the transparent shield 4 has a release sheet 202 attached to the surface of the adhesive 201.When using, the release sheet 202 is peeled off and the mask is attached to the inside (face side) of the upper end of the conventional mask. The adhesive 201 may be a detachable or non-detachable adhesive. When a detachable adhesive 201 is used, it is composed of a permanent adhesive layer 24, a tape substrate 26, and a removable adhesive (PSA) layer 25 as shown in FIG. 2(B), and the mask 3 made of nonwoven fabric or the like becomes replaceable. The adhesive 201 may be made of either rubber (adhesive type) or acrylic (adhesive or detachable) material. FIG. 2(C) is a front view of the known mask with the transparent shield 4 attached to the inside (face side) of the upper end, and FIG. 2(D) is a side view thereof.

[0011] The principle of the present invention is shown in Figure 3. Wearing the present invention can prevent viruses, bacteria, pollen, etc. from entering the eyes of the wearer 5 (12). Furthermore, the body temperature and exhaled air of the wearer 5 create an updraft 11 in the gap between the face and the transparent shield 4 around the nose. This updraft further prevents viruses, bacteria, pollen, etc. from entering from the sides.

[0012] The adhesive of the adhesive portion 2 may have a weaker adhesive strength than conventional adhesives. A permanent adhesive with an adhesive strength of 1 N or more, or a removable adhesive is preferred. The adhesive strength is the 90-degree peel adhesive strength, expressed in units of N / 10 mm. In the present invention, since the shield is inside the mask, pressure is applied to press it against the mask 3, so the adhesive force can be small, and may be 1N or more but less than 3N. The adhesive portion is the upper edge of the mask 3, and it is preferable to apply adhesive to a width of 5-30 mm from the upper edge.

[0013] The transparent shield 4 has a width of approximately 150 mm to 200 mm, a height of approximately 160 mm to 240 mm, and a thickness of 50 to 200 microns. For example, it can have a height of approximately 200 mm and a width of 150 mm. It is made of a flexible, bendable transparent material such as PP, PE, PET, plastic, vinyl, or resin film. The inner and outer surfaces of the transparent shield may be treated with anti-fog, anti-glare, and antibacterial properties.

[0014] When wearing this mask, there are gaps on either side of the nose. These gaps create a chimney effect, allowing warm air, such as exhaled air, to rise and flow upward between the shield and the face, protecting the eyes from viruses and other contaminants. Furthermore, the mask can be worn easily without the need for a wire at the top of the mask to tighten around the nose. This is how the mask of the present invention leaves gaps on either side of the nose compared to conventional masks.

[0015] [Second embodiment of the present invention] In the second embodiment of the present invention, as shown in FIG. 4(A), the adhesive portion 2 is formed by partial adhesive bonding 21 at three locations. This allows the adhesive to be reduced, and also creates a gap between the transparent shield 4 and the mask in the non-adhesive portion, allowing the ascending air current of the exhaled breath and the like to pass through the inner surface of the transparent shield 4. Furthermore, if an inverted V-shaped cut is made in the central lower edge of the shield 4 to fit the shape of the nose, the tip of the nose will not come into contact with the transparent shield 4 when wearing the present invention, eliminating discomfort. The number of bonded locations can be any number of two or more, but since the present invention does not require strong adhesive strength, there is no need to bond many locations, and a maximum of six locations, preferably four locations or less, is sufficient.

[0016] [Third embodiment of the present invention] In the third embodiment of the present invention, as shown in Figure 4(B), adhesive portions 2 are provided with adhesive 22 in two locations corresponding to the sides of the wearer's nose and in two locations that come into contact with the cheeks. This makes the mask less likely to come off even if it changes shape to fit the shape of your nose.

[0017] [Fourth embodiment of the present invention] As shown in FIG. 4(C), the fourth embodiment of the present invention is characterized in that the adhesive portion 2 is made up of only two adhesives 23 in the portions corresponding to the sides of the wearer's nose. This allows for significant cost savings compared to applying adhesive to the entire width of the lower edge. When the adhesive 23 is a removable adhesive, it can be easily attached and detached from the mask 3, which is convenient, and there is an advantage that the adhesive is less likely to deteriorate.

[0018] [Fifth embodiment of the present invention] The fifth embodiment of the present invention is characterized in that a transparent shield 4 is provided on a mask that does not require wire 32 at the top end of the mask 3 to fit the shape of the nose (see FIG. 5(A)), as shown in FIG. 5(B). The present invention creates gaps between the face and the shield on both sides of the nose, providing a chimney effect to protect the eyes, eliminating the need for wire 32. This reduces the cost of the mask and improves comfort by eliminating any sense of pressure.

[0019] [Sixth embodiment of the present invention] The sixth embodiment of the present invention is characterized in that when an adhesive portion 23 is provided on the nose side portion as shown in Figure 4(C), a nose contact member 101 is provided on the transparent body shield 4 as shown in Figure 5(C). The nose contact member 101 is adhered by a permanent adhesive layer 24 to the inside of the lower edge of the transparent body shield 4, corresponding to the portion at the lower edge of the transparent body shield 4 where adhesive 201 for adhering to the mask 3 is provided. The material and shape of the nose contact member are not limited, but it is preferable that the nose contact member is made of a soft material such as polyurethane resin or sponge that is pleasant to the touch and has a thick plate shape. When the transparent body shield 4 is adhered to the mask 3 with the removable adhesive 25, the transparent body 1 can be peeled off from the mask 3 and the transparent shield 4 can be adhered to the inside of a new mask, so there is no need to discard the transparent body together with the mask, which is environmentally friendly, and there is an effect that the presence of the nose contact member prevents damage to the skin no matter how many times the present invention is used.

[0020] [Seventh embodiment of the present invention] The seventh embodiment of the present invention is a transparent shield characterized in that adhesive portions are provided at the lower ends of both sides of the transparent shield 4, as shown in FIG. The transparent shield 4 has differential adhesive sections 201 formed of a permanent adhesive layer 24 and a removable adhesive layer 25 on both sides of the transparent body, and has release paper 202 on the adhesive sections, which can be attached to a mask. According to the seventh embodiment of the present invention, the release paper 202 on one side of the transparent shield 4 can be peeled off and the shield can be attached and detached multiple times to a mask such as a nonwoven fabric, and if the adhesive strength of the removable adhesive layer 25 decreases, the release paper 202 on the other side of the transparent shield 4 can be peeled off and the shield can be attached and detached multiple times to a mask such as a nonwoven fabric, thereby doubling the cost performance of the present invention. When peeling off the release paper 202 on the other side of the transparent shield 4, it is preferable to stick the release paper 202 or a nose contact member such as a cushion to the adhesive on one side of the transparent shield 4 to prevent damage to the skin. [Eighth embodiment of the present invention] 7, the eighth embodiment of the present invention is characterized in that the adhesive portion 2 is made of only two adhesives 23 in portions corresponding to the sides of the wearer's nose, and in that cuts 51 are made from both side portions of the transparent body shield 5 toward the adhesive portion. The transparent body shield below cut 51 and the transparent body shield above the cut are connected by an uncut portion 52. The uncut portion 52 has a width of 10 to 30 mm, long enough to fit along the side of the nose, and an adhesive 23 portion is provided on the lower edge of the transparent body shield 5 directly below the uncut portion 52. The position of the cut 51 in the transparent body shield 5 and the adhesive position between the transparent body shield 5 and the mask 3 are adjusted so that the cut 51 is at a height that is slightly above the upper edge of the mask 3 as shown in Figure 7(A) when the transparent body shield 5 is adhered to the mask 3. As a result, when the present invention 5 is worn, the transparent shield below the slit 51 easily follows the curvature near the nose, and the transparent shield above the slit 51 curves along the face as shown by the chain line in Figure 7(B) if there is no slit, but with the slit 51 the transparent shield 5 does not curve and remains roughly flat as shown by the solid line, so pressure around the nose when wearing the present invention and strain on the ears caused by being pulled by the mask strings are reduced.

[0021] From the above, it goes without saying that the present invention has far superior features to known masks and masks equipped with shields. Although the present invention has been described as being applied to masks made of nonwoven fabric or the like, the present invention also includes application to, for example, plastic mouth covers that protect the mouth and nose. [Industrial Applicability]

[0022] The present invention prevents viruses, bacteria, and pollen from entering the eyes, and has great industrial applicability. [Explanation of symbols]

[0023] 1. Publicly known transparent shield 101 Nose contact member 2 Adhesive part 201 Adhesive 202 Release paper 21 Partially bonded area (e.g., 3 places) 22 Adhesive part provided in nose equivalent part 23 Adhesive part provided only on nose part 24 Permanent adhesive layer 25 Removable adhesive (PSA) layer 26 Tape substrate 3. Masks made of publicly known nonwoven fabrics, etc. 31 Mask strings 32 Metal fittings for adjusting the mask to the shape of your nose (nose fit) 4. Transparent shield of the present invention 5 Transparent shield with cutouts of the present invention 51 Notch 52 Uncut area 11. Updrafts caused by body temperature and exhaled air 12 Protection against viruses, bacteria, and pollen

Claims

1. This mask is characterized in that the outer lower edge of a transparent body covering the eyes is joined to the inner upper edge of the mask made of nonwoven fabric or the like.

2. 2. A mask according to claim 1, wherein the lower edge of said transparent body can also be used as a metal fitting for fitting a mask made of nonwoven fabric or the like to the nose shape.

3. 2. A mask according to claim 1, wherein the transparent body is adhered only to a part of a metal fitting holder provided on the upper edge of the mask made of nonwoven fabric or the like, the metal fitting holder fitting to the nose shape of the mask.

4. 4. A mask according to claim 3, wherein the lower edge of said transparent body is entirely provided inside the mask made of nonwoven fabric or the like.

5. 5. A mask according to claim 4, further comprising a transparent or opaque material covering the outside of the mask, such as nonwoven fabric.

6. A transparent body characterized in that a permanent or removable adhesive portion is provided at the lower edge of the transparent body, which can bond the outer side of the lower edge of the transparent body to the inner side of the upper edge of a mask made of nonwoven fabric or the like.

Citation Information

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