JP3766488B2 - mask - Google Patents

Description

[0001]
【Technical field】
The present invention relates to a mask used by being worn on a person's nose and mouth.
[0002]
[Prior art and its problems]
A mask for preventing inhalation of fine particles such as dust, pollen, and bacteria has conventionally been provided with a string-like body (including a stretchable material such as rubber) for hanging on an ear or a head without exception. Conventionally, this string-like body is generally provided on the short side of a mask body which is generally rectangular in a free state, and acts so as to shorten the short side of the rectangular mask body when worn on a human face. For this reason, it was difficult to adhere to the face, and there was a tendency that gaps were formed around the face and the capture of fine particles was insufficient. Moreover, since the attachment part of a string-like body becomes inevitably thick, a visual field may be interrupted.
[0003]
OBJECT OF THE INVENTION
An object of the present invention is to obtain a mask that can be more reliably brought into close contact with the face without using a string-like body, and thus has a high effect of capturing fine particles. It is another object of the present invention to obtain a mask that has a low degree of blocking the visual field.
[0004]
SUMMARY OF THE INVENTION
The mask of the present invention is provided with an annular fitting portion along the human face on the periphery of the breathable fine particle capturing portion covering the human mouth and nose, and excluding a portion of the annular fitting portion that corresponds to the left and right of the human mouth. In addition, an adhesive layer that can be adhered to the human face is provided, and a release paper is attached to the adhesive layer. It is characterized by having formed .
[0005]
The ring-shaped fitting portion may include a metal material which can freely set the shape.
[0006]
It is preferable to provide the stretchable collar part also in the breathable fine particle capturing part. The breathable fine particle capturing part can be composed of various materials such as gauze, but can further contain a breathable and sheet-like organic polymer substance matrix. Specifically, this sheet-like organic polymer substance matrix is preferably composed of paper or non-woven fabric. And if this organic polymer substance matrix is made to carry the calcium phosphate type compound particle | grains with Ca / P ratio of 1.0-2.0, the capture effect of pollen, bacteria, or a virus can also be acquired.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show examples of basic shapes of a mask 10 according to the present invention. This mask 10 has a breathable fine particle capturing portion 20 having a substantially elliptical shape in front view at the center and a peripheral fit portion 30 located at the periphery of the breathable fine particle capturing portion 20. The breathable fine particle capturing unit 20 includes a central raised portion 21 corresponding to the human nose N and a capturing portion collar 22 corresponding to the mouth M.
[0008]
The peripheral edge fitting part 30 is formed in a flange shape on the peripheral edge of the breathable fine particle capturing part 20, and an adhesive layer 31 is formed on the inner surface (face side). 32 is attached . In order to easily cope with the expansion and contraction of the face , the portions 33 on both sides of the mouth of the peripheral fit portion 30 are discontinuous portions (non-forming portions) of the adhesive layer. The fit part collar part 34 is used.
[0009]
4 and FIG. 5 show cross-sectional examples of the shape of the capturing part collar part 22 of the breathable particulate capturing part 20 and the peripheral fitting part collar part 34 of the peripheral fitting part 30, respectively. The trap part collar part 22 should just be a shape which the breathable fine particle trap part 20 can expand and contract correspondingly when a person speaks. On the other hand, the periphery fitting part collar part 34 is made into the shape which does not have a clearance gap as much as possible when the periphery fitting part 30 is adhere | attached on the face through the adhesive bond layer 31. FIG. In the example of FIG. 4, the capture part collar portion 22 has a simple V-shaped (U-shaped) cross section, and in the example of FIG. 5, the capture section has a continuous Ω-shaped cross section.
[0010]
The breathable fine particle capturing unit 20 may be any material that can capture particles in the air. For example, in addition to a conventional material such as gauze, for example, at least one layer thereof can be composed of a sheet-like organic polymer substance matrix as proposed by the applicant in Japanese Patent Laid-Open No. 5-115572. 6 is an example in which two sheet-like organic polymer substance matrices (filter materials) 24 are sandwiched between gauze materials 25, and FIG. 7 is a diagram in which one filter material 24 and gauze materials 25 are stacked. It is.
[0011]
The filter material 24 is made of paper (cellulose) or non-woven fabric, and contains and contains calcium phosphate compound particles, and air can pass through the gaps 24a between the fibers. A calcium phosphate compound having a Ca / P ratio of 1.0 to 2.0 is used. For example, hydroxyapatite, tricalcium phosphate, tetracalcium phosphate and the like can be used. These calcium phosphate compounds are preferably used as particles having a particle size of 0.1 to 500 μm. Such a filter material 24 has been confirmed to have an excellent adsorption action against harmful gases, malodorous components, bacteria, viruses, pollen and the like in the air.
[0012]
In use, the mask 10 having the above-described configuration peels the release paper 32, applies the breathable fine particle capturing portion 20 to the mouth and nose of the person, and the adhesive layer 31 of the peripheral fitting portion 30 on the face. Glue. In this bonded state, there is no thick part at the periphery of the breathable fine particle capturing part 20, so that the human visual field is not obstructed. In particular, the presence of the capture part collar part 22 and the peripheral fit part collar part 34 can sufficiently cope with a change in the shape of the face when a person speaks.
[0013]
Moreover, the metal material 35 or core material which can set a shape freely can be included in the periphery fitting part 30. FIG. If such a metal material 35 or a core material is inserted, the shape of each person's face can be handled more reliably. The metal material 35 may be provided only on the upper part corresponding to the human nose N.
[0014]
【The invention's effect】
According to the present invention, it is possible to obtain a mask that can be more reliably brought into close contact with the face without using a string-like body, and therefore has a high effect of capturing fine particles and has a low degree of blocking the visual field. Moreover, since the structure is simple and can be manufactured at low cost, the cost performance is high.
[Brief description of the drawings]
FIG. 1 is a front view showing an example of a mask of the present invention.
2 is a cross-sectional view taken along the line II-II in FIG.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a schematic cross-sectional view showing a shape example of a central collar portion of the mask of FIG.
5 is a schematic cross-sectional view showing a shape example of a peripheral edge fitting portion of the mask of FIG. 1. FIG.
FIG. 6 is a cross-sectional view showing a specific structural example of the mask of the present invention.
FIG. 7 is a cross-sectional view showing another specific structure example of the mask of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Mask 20 Breathable microparticle capture | acquisition part 21 Center raised part 22 Capture part ridge part 24 Organic polymer substance matrix (filter material)
25 Gauze material 30 Peripheral fit part 31 Adhesive layer 32 Release paper 34 Peripheral fit part collar part 35 Metal material

Claims (7)

At the periphery of the breathable particulate capturing part covering the person's mouth and nose, an annular fitting part along the person's face is provided,
An adhesive layer capable of adhering to the human face is provided in a region excluding the portion corresponding to the left and right sides of the human mouth in the annular fit portion , and a release paper is attached to the adhesive layer ,
A mask characterized in that an expandable / contractible fitting part collar is formed on the left and right parts of the mouth where no adhesive layer is provided in the annular fitting part . The mask according to claim 1 , wherein the annular fit portion includes a metal material whose shape can be freely set. 3. The mask according to claim 1 or 2 , wherein the air-permeable fine particle capturing portion has a stretchable capturing portion collar. The mask according to any one of claims 1 to 3 , wherein the breathable fine particle capturing part includes a breathable sheet-like organic polymer substance matrix. 5. The mask according to claim 4 , wherein the sheet-like organic polymer substance matrix is paper or non-woven fabric. 6. The mask according to claim 4 or 5 , wherein the organic polymer substance matrix carries calcium phosphate compound particles having a Ca / P ratio of 1.0 to 2.0. The mask according to any one of claims 4 to 6 , wherein the breathable fine particle capturing portion includes one of gauze and a nonwoven fabric in addition to the sheet-like organic polymer substance matrix.

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