REUSABLE ANTIBACTERIAL FINE DUST MASK

Abstract

The present invention relates to a fine dust mask, and more particularly, to an antibacterial fine dust mask. The fine dust mask according to the present invention comprises: a mask part; a sealing member fixed to the top of the inner surface of the mask part; and a fine dust filter sheet positioned between the inner surface of the mask part and a user's face.

Claims

1. A fine dust mask comprising: a mask part; a sealing member fixed to the top of the inner surface of the mask part; and a fine dust filter sheet positioned between the inner surface of the mask part and a wearer's face.

2. The fine dust mask according to claim 1, wherein the sealing member is a nonmetal member.

3. The fine dust mask according to claim 1, wherein the sealing member is a fabric type sealing member.

4. The fine dust mask according to claim 3, wherein the fabric type sealing member comprises a nasal bridge contact portion coming into contact with the wearer's nasal bridge and nasal dorsum contact portions extended symmetrically from both sides of the nasal bridge contact portion in such a manner as to come into contact with the nasal dorsum extended from the nasal bridge under the eyes.

5. The fine dust mask according to claim 4, wherein the nasal bridge contact portion is thinly formed and the nasal dorsum contact portions are thickly formed.

6. The fine dust mask according to claim 3, wherein the fabric type sealing member is configured to allow the top thereof to be fixed to the inside of the mask through a sewn portion, while the bottom thereof is being not fixed.

7. The fine dust mask according to claim 1, wherein the fine dust filter sheet has a three-dimensional shape corresponding to the inner shape of the mask.

8. The fine dust mask according to claim 7, wherein the fine dust filter sheet is disposable.

9. The fine dust mask according to claim 1, wherein the fine dust filter sheet is partially fixed to the inner surface of the mask part and/or the sealing member.

10. The fine dust mask according to claim 9, wherein the fine dust filter sheet is configured to allow a portion of top thereof to be insertedly attached to a gap between the inner surface of the mask part and the sealing member.

11. The fine dust mask according to claim 1, wherein the mask part is an antibacterial mask part.

12. The fine dust mask according to claim 11, wherein the inner surface of the antibacterial mask part is made of an antibacterial fabric.

13. The fine dust mask according to claim 11, wherein the antibacterial mask part comprises a knitted fabric that is made by knitting an electrical conductive fiber containing a copper component combinedly with one or more fibers selected from the group consisting of a nonconductive fiber containing a copper component, a cotton fiber, a Tencel® fiber, a polyester fiber, and a spandex fiber.

14. The fine dust mask according to claim 11, wherein the antibacterial mask part is a three-layered knitted mask part having a non-antibacterial upper knitted fabric, a lower knitted fabric using an antibacterial fabric, and a vertical knitted fabric.

15. The fine dust mask according to claim 14, wherein the three-layered knitted mask part comprises: an upper knitted fabric; a lower knitted fabric having an electrical conductive fiber containing a copper component and a nonconductive fiber containing a copper component; and a vertical knitted fabric containing a monofilament fiber.

16. A fine dust mask comprising: a mask part; and a fine dust filter sheet configured to allow a portion thereof to be fixed to the inner surface of the mask part and to allow a portion not fixed to the inner surface of the mask part to move according to a wearer's respiration.

17. A mask comprising a nonmetal sealing member fixed to top of the inner surface thereof so as to seal a gap between a wearer's nasal bridge and face.

18. The mask according to claim 17, wherein the nonmetal sealing member is a fabric type sealing member comprising a nasal bridge contact portion coming into contact with the wearer's nasal bridge and nasal dorsum contact portions extended symmetrically from both sides of the nasal bridge contact portion in such a manner as to come into contact with the nasal dorsum extended from the nasal bridge under the eyes.

19. The mask according to claim 18, wherein the fabric type sealing member comprises the nasal bridge contact portion thinly formed thereon and the nasal dorsum contact portions thickly formed thereon.

20. The mask according to claim 19, which is a three layered knitted mask having a non-antibacterial upper knitted fabric, a lower knitted fabric using an antibacterial fabric, and a vertical knitted fabric.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0042] FIG. 1 is a perspective view showing the outer surface of a fine dust mask according to the present invention.

[0043] FIG. 2 is a front view showing the inner surface of the fine dust mask according to the present invention.

[0044] FIG. 3 is an exploded perspective view showing the fine dust mask according to the present invention.

[0045] FIG. 4 is a sectional view showing the fine dust mask according to the present invention.

[0046] FIG. 5 is a sectional view showing the operating state of the fine dust mask according to the present invention.

BEST MODE FOR INVENTION

[0047] Hereinafter, an explanation of the present invention will be in detail given with reference to the attached drawings. The present invention may be embodied in different forms and should not be construed as limited to the embodiment set forth herein but may be modified and variously implemented by those skilled in the art.

[0048] As shown in FIGS. 1 to 4, a fine dust mask 10 according to the present invention 1 includes a mask part 100, a sealing member 200 fixed to the top of the inner surface of the mask part 100; and a fine dust filter sheet 300 positioned between the inner surface of the mask part 100 and a wearer's face.

[0049] The mask part 100 protrudes from a center portion thereof according to the face contour, is shaped symmetrically with respect to left and right sides, and has loop portions 110 formed on both sides thereof to hang the fine dust mask 10 on the ears.

[0050] The mask part 100 is knitted three layeredly, together with the loop portions 110, by means of a double circular knitting machine.

[0051] So as to manufacture an upper knitted fabric corresponding to the outer surface of the mask part 100, polyester, nylon and spandex feeders are supplied, and so as to manufacture a lower knitted fabric corresponding to the inner surface of the mask part 100, conductive fiber containing a copper component, non-conductive fiber containing a copper component, nylon 66, and spandex feeders are supplied. So as to manufacture a vertical knitted fabric, polyester monofilament fiber and copper component-contained non-conductive fiber feeders are supplied. The double circular knitting machine operates under the conditions of a loop length in the range of 4 to 20 cm, a feeder in the range of 80 to 150, and a gauge in the range of 18 to 30, and the upper knitted fabric is spaced apart from the lower knitted fabric by about 2 mm.

[0052] The conductive fiber containing the copper component is made according to known methods (Korean Patent Nos. 10-1866418 and 10-1925070). So as to make the conductive fiber containing the copper component, first, about 70 denier of a nylon fiber is loaded in a reaction vessel and is then adjusted to a bath ratio of 1:15 to 20, and 3 to 5 g/L of a de-oiling agent is treated at a temperature of 60° C. for 40 minutes to wash the floating substances produced by the de-oiling agent with water. Next, 2 to 3% o.w.f. of levulinic acid, 0.1 to 0.5% o.w.f. of sodium lauryl sulfate, 0.1 to 0.3% o.w.f. of polyethylene glycol, 8 to 10% o.w.f. of sodium thiosulfate, 0.2% o.w.f. of EDTA, and 10 to 20% o.w.f. of copper sulfate are added to the reaction vessel and are then agitated for about 10 minutes. After that, the mixture is raised to a temperature of 60° C. by 1° C./mm in the range of 4 to 5 pH and is then reacted at 60° C. for 60 minutes. Next, 0.3% o.w.f. of sodium hypophosphate is added to the mixture, and reduction precipitation is performed at 60° C. for 20 minutes. Unreacted substances are removed to pH 7, and 0.3% o.w.f. of magnesium hydroxide is added at pH7. Next, the mixture is treated at 40° C. for 20 minutes to remove residual sulfur.

[0053] The non-conductive fiber containing the copper component is made of a fiber produced by KOLON GLOTECH INC., the polyester fiber has 50 denier, and the spandex is a thin fiber having 30 denier.

[0054] In the feeders provided for the upper knitted fabric, the pre-dyed polyester has 75 denier, the nylon 50 denier, and the spandex 20 denier, and in the feeders provided for the lower knitted fabric, the conductive fiber containing the copper component has 70 denier, the non-conductive fiber containing the copper component 70 denier, the nylon 70 denier, and the spandex 20 denier. In the feeders provided for the vertical knitted fabric, further, the polyester monofilament fiber has 40 denier and the non-conductive fiber containing the copper component has 70 denier.

[0055] The upper knitted fabric contains 15% by weight of the polyester, 10% by weight of the nylon, and 5% by weight of the spandex, the lower knitted fabric contains 5% by weight of the conductive fiber containing the copper component, 15% by weight of the non-conductive fiber containing the copper component, 20% by weight of the nylon, and 5% by weight of the spandex, and the vertical knitted fabric contains 20% by weight of the polyester monofilament fiber and 5% by weight of the non-conductive fiber containing the copper component.

[0056] The sealing member 200 fixed to the top of the inner surface of the mask part 100 is a member made of a fabric attached to the inside of the mask so as to fill a gap generated when the mask does not completely come into contact with the wearer's face due to the face curvature.

[0057] The sealing member 200 has a nasal bridge contact portion 210 coming into contact with the wearer's nasal bridge and nasal dorsum contact portions 220 extended symmetrically from both sides of the nasal bridge contact portion 210 in such a manner as to come into contact with the nasal dorsum extended from the nasal bridge under the eyes. The surface of the sealing member 200 coming into contact with the mask part 100 is flat so that it can be brought into contact with the inner surface of the mask part 100, and the surface of the sealing member 200 coming into contact with the wearer's face is curved.

[0058] The nasal bridge contact portion 210 is thinly formed, and the nasal dorsum contact portions 220 are thickly formed and protrude, so that when the mask is worn on the face by hanging the loop portions 110 on the wearer's ears, accordingly, the nasal dorsum contact portions 220 compressedly come into contact with the nasal dorsum, thereby filling the gap isolated from the mask.

[0059] The sealing member 200 is configured to allow a top end center portion thereof to be fixed to the inside of the mask through a sewn portion 230, while the other portion is not being fixed to the mask, so that the sealing member 200 produces a gap in which the fine dust filter sheet 300 is fixedly inserted between the inner surface of the mask part 100 and the sealing member 200.

[0060] The fine dust filter sheet 300 is made of a KF94 sheet that is capable of filtering fine dust particles less than 10 micrometers or ultra fine dust particles less than 2.5 micrometers. The fine dust filter sheet 300 has a three-dimensional shape that is symmetrical with respect to left and right sides thereof, while having a center portion protruding therefrom according to the face contour, so as to come into contact with the inner surface of the mask part 100. The fine dust filter sheet 300 is fixed to the mask, without any loops hung on the eyes or any separate device for bonding or attachment to the inner surface of the mask part 100.

[0061] As the mask part 100 and the sealing member 200 are compressed against the wearer's face when the mask is worn on his or her face, the fine dust filter sheet 300 whose top center portion is fixedly fitted between the inner surface of the mask part 100 and the sealing member 200 becomes compressed and fixed, without moving down.

[0062] The fine dust filter sheet 300 can be exchangeably used. The exchange is carried out by taking the mask 10 off, lifting up the sealing member 200 whose top is fixed to the inner surface of the mask part 100, removing the fine dust filter sheet 300, insertedly fitting a new fine dust filter sheet 300 to the gap between the inner surface of the mask part 100 and the sealing member 200, moving the sealing member 200 down, and wearing the mask 10 on the wearer's face again.

[0063] As shown in FIG. 5, the fine dust filter sheet 300 whose top center portion is fixedly fitted to the gap between the inner surface of the mask part 100 and the sealing member 200 is configured to allow the lower end portion not fixed to move between the wearer's face and the inside of the mask part 100 according to the wearer's respiration.

[0064] When the wearer inhales air, the fine dust filter sheet 300 comes close to the wearer's face according to the inhaled air to thus prevent fine dust from entering the gap between the inner surface of the mask part 100 and the sealing member 200, and contrarily, when the wearer exhales air, the fine dust filter sheet 300 comes close to the inner surface of the mask part 100 according to the exhaled air to thus allow the carbon dioxide contained in the exhaled air to be easily exhausted through the gap.