CN2617410Y

CN2617410Y - Filter membrane mask

Info

Publication number: CN2617410Y
Application number: CN 03231090
Authority: CN
Inventors: 李敖琪; 沈慧珍
Original assignee: Ningbo Changqi Fluorine Plastic Products Co ltd
Current assignee: Ningbo Changqi Fluorine Plastic Products Co ltd
Priority date: 2003-05-09
Filing date: 2003-05-09
Publication date: 2004-05-26
Anticipated expiration: 2013-05-09

Abstract

The utility model relates to a filter membrane mask, comprising filter clothes, a fixation band, a microporous membrane fixed on both sides of the filter clothes, wherein the filter clothes are porous non-woven fabrics, the filter membrane made of polytetrafluoroethylene is arranged between the porous non-woven fabrics, the edges are bound together. The utility model is bowl-shaped and the filtering area is increased as the surface tightly contacted with the face is shrunk when in use, thus reducing the changes of the airs being directly absorbed from the surrounding sides without filtering; a metal strip which has a certain strength and also can be changed freely is arranged at the position aligned with the nose bridge, enabling the rough sections on two sides of the nose bridge to be matched with each others; when breathing, good sealing is achieved by using the suction and the softness of the materials at the joint of the bowl-type mask and the face, thus the air can be absorbed into body through the polytetrafluoroethylene membrane and the viruses, bacterium and other harmful particles can be well intercepted.

Description

Filter membrane mask

Technical field

The utility model relates to a kind of mouth mask technical field, especially refers to Filter membrane mask.

Background technology

The present mouth mask that can buy on the market, they knit the hole or mesh is all bigger, particle that some are tiny or flue dust often can also pass cover and enter nasal cavity, thereby make mouth mask lose the fungi-proofing effectively mistake of gas defence.For addressing the aforementioned drawbacks, someone has designed a kind of mouth mask, the application number of its Chinese patent is 98223727.8, its name is called Filter membrane mask, it comprises that gauze is the 2-4 piece, they are superimposed relatively, three limits are incorporated in linear slit and form an opening on its 4th limit, described strap is two, their two ends that are sewn to the gauze upper shed respectively, in addition, also comprise six velcros and 1-4 pieces of sheet, in the described velcro two respectively with linear slit to the relative two gauze edges of described opening, remaining velcro is sewn into the other end of two straps and the two ends of a relative side with the gauze upper shed separately, and described pieces of sheet can be put into the interlayer of gauze by opening.Though this structure has certain advantage, its shortcoming still exists, and at first is that structure is not enough simply closed, and it is convenient inadequately to use; Next is that mouth mask itself is a kind of breathing mask, often infected by germ easily, because of the contacted gauze of above-mentioned mouth mask and oral cavity is can not change all the time, filter membrane and gauze are too near again with the oral cavity distance again, so on the surface, filter membrane and gauze be in frequent replacing, but that its essence is still kept away is unavoidably contaminated.This in addition mouth mask sealing property is bad, and gas leakage influences health easily, so its structure awaits improving.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of simple and reasonable, to the rejection of bacterium high and Filter membrane mask easy to make.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: it includes filter cloth, fixed band and miillpore filter, fixed band is fixed on the both sides of filter cloth, it is characterized in that described filter cloth is a perforated nonwoven fabrics, described filter membrane be poly tetrafluoroethylene be liner between perforated nonwoven fabrics, its periphery is for bonding connection.

Above-mentioned filter cloth is two layers, poly tetrafluoroethylene be liner between two layers of bowl-type perforated nonwoven fabrics, its periphery by hot melt adhesive together.

Above-mentioned filter cloth is three layers, poly tetrafluoroethylene be liner between first and second layer bowl-type filter cloth from outside to inside, and the bowl-type filter cloth of the second layer is thickening layer, its periphery by hot melt adhesive together.

Its skin of above-mentioned filter cloth is set up the bonding jumper that an energy any variations has certain intensity again aiming on the bridge of the nose position, at the internal layer of filter cloth and be lined with the magma that can protect the bridge of the nose on the position of bonding jumper.Compared with prior art, it is bowl-type that the utility model adopts the mouth mask profile, it dwindles with the facial area that closely contacts in use, the filter area of polytetrafluoroethylene (PTFE) miillpore filter increases, thereby significantly reduced the chance that the air filtered directly sucks from four limits, again because of little with the facial contact area, naturally the comfortableness that wears masks also just improves, also have and utilize bowl arcuation of type projection and the space between the face, improve the air filtration area, minimizing is to exhaling, inhale the requirement of pressure reduction, improves the defective that pressure reduction that miillpore filter is used for flat mouth mask is had relatively high expectations thereby reach; Pass through hot melt adhesive together because of the mouth mask periphery again, aiming on the bridge of the nose position, setting up an energy any variations has the bonding jumper of certain intensity again, coincide well to make it rough cross section, bridge of the nose both sides, when breathing, utilize the flexibility of suction and bowl type mouth mask and facial junction material to reach good sealing effectiveness like this, make air all by in the polytetrafluoroethylene (PTFE) miillpore filter suction body, make virus, bacterium and other particulates emission obtain good holding back; Be filter membrane because of this product adopts the polytetrafluoroethylene (PTFE) miillpore filter again, the level that has the similar film of 0.22-0.45um in the international business because of tetrafluoroethylene, has unique gas defence function, having eliminated virus, bacterium and other particulates emission enters from the oral cavity and influences health, therefore this product is a kind of product very with practical value, is worthy of popularization.

Description of drawings

Fig. 1 is the stereogram of the utility model embodiment;

Fig. 2 is the cutaway view of Fig. 1;

Fig. 3 is that Fig. 2 is at M place partial enlarged drawing;

Fig. 4 is that Fig. 2 is the partial enlarged drawing of another kind of type in its internal structure of M place.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Shown in Fig. 1-4, present embodiment includes filter cloth 1, fixed band 2 and miillpore filter 5, miillpore filter 5 is the polytetrafluoroethylene (PTFE) miillpore filter, fixed band 2 is an elastic reducing-fixing band, and be fixed together by hot melt and filter cloth 1, and place on the both sides of filter cloth 1 outside, filter cloth 1 is made by nontoxic fiber or plastics, and make porous bowl shape shelf, described filter cloth 1 is two layers, the polytetrafluoroethylene (PTFE) miillpore filter be liner between two layers of bowl-type perforated nonwoven fabrics, its periphery by hot melt adhesive together, see Fig. 1, Fig. 2, Fig. 3.

As shown in Figure 2, aiming on the bridge of the nose position at the skin of polytetrafluoroethylene (PTFE) miillpore filter, setting up an energy any variations has the bonding jumper 3 of certain intensity again, coincide well to make it rough cross section, bridge of the nose both sides, when breathing, utilize the flexibility of suction and bowl type mouth mask and facial junction material to reach good sealing effectiveness like this, make air all by in the polytetrafluoroethylene (PTFE) miillpore filter suction body, make virus, bacterium and other particulates emission obtain good holding back; At the internal layer of perforated nonwoven fabrics and be lined with the magma 4 that can protect the bridge of the nose on the position of bonding jumper, this magma 4 is a foam-rubber cushion, make and feel more comfortable when wearing masks,

As shown in Figure 4, be that its internal structure of the utility model is the partial enlarged drawing of another kind of type, filter cloth 1 is three layers, the polytetrafluoroethylene (PTFE) miillpore filter is that liner is between first and second layer bowl-type filter cloth 1 from outside to inside, and the bowl-type filter cloth 1a of the second layer is a thickening layer, and its periphery by hot melt adhesive together.

Claims

1, a kind of Filter membrane mask, it includes filter cloth (1), fixed band (2) and miillpore filter (5), fixed band (2) is fixed on the both sides of filter cloth (1), it is characterized in that described filter cloth (1) is a perforated nonwoven fabrics, described filter membrane (5) for poly tetrafluoroethylene be liner between perforated nonwoven fabrics, its periphery is for bonding connection.

2,, it is characterized in that described filter cloth (1) becomes the bowl shape that certain support force is arranged according to the described Filter membrane mask of claim 1.

3, according to the described Filter membrane mask of claim 2, it is characterized in that described filter cloth (1) is two layers, poly tetrafluoroethylene be liner between two layers of bowl-type perforated nonwoven fabrics, its periphery by hot melt adhesive together.

4, according to the described Filter membrane mask of claim 2, it is characterized in that described filter cloth (1) is three layers, poly tetrafluoroethylene be liner between first and second layer bowl-type filter cloth (1) from outside to inside, and the bowl-type filter cloth (1a) of the second layer is thickening layer, its periphery by hot melt adhesive together.

5,, it is characterized in that described fixed band (2) is an elastic reducing-fixing band, and be fixed together, and place on the dual-side of perforated nonwoven fabrics outside by hot melt and the harmless cloth of porous according to arbitrary described Filter membrane mask in the claim 1 to 4.

6, according to arbitrary described Filter membrane mask in the claim 1 to 4; it is characterized in that its skin of described filter cloth (1) is on aligning bridge of the nose position; setting up an energy any variations has the bonding jumper (3) of certain intensity again, at the internal layer of filter cloth (1) and be lined with the magma (4) that can protect the bridge of the nose on the position of bonding jumper.

7,, it is characterized in that described fixed band (2) is an elastic reducing-fixing band, and be fixed together, and place on the dual-side of filter cloth (1) outside by hot melt and filter cloth (1) according to the described Filter membrane mask of claim 6.