Background technology
In recent years, domestic air quality is continuous worsening, and lasting haze weather has even appearred in many cities.These hazes are mainly made up of sulfur dioxide, nitrogen oxide and pellet (diameter≤10 micron particle), and wherein particle increases the weight of the arch-criminal that haze weather pollutes.It is reported, stability is high in an atmosphere for the little particle of particle diameter, and sinking speed is slow.The particle of diameter≤2.5 micron, be called fine particle and PM2.5, suspension time is long in atmosphere, and be easy to be trapped in eventually in last bronchus and alveolar, wherein some thinner component, can also penetrate alveolar and enter blood.Add that PM2.5 more easily adsorbs various poisonous organic matter and heavy metal element, healthhazard is very big.Therefore, very important also necessary to the protection of PM2.5.
The N95 type mouth mask comparatively pursued at present, filter effect can reach 95% after testing, and the effect of protection PM2.5 should be good.But the protective mask of this specialty is generally airtight due to its protective materials, have impact on permeability, and expert thinks, general population wears and easily causes expiratory dyspnea, occur dizzy because of anoxic, be especially not suitable for the patients such as angiocardiopathy, therefore how apply as industrial protection.Existing mouth mask mostly on the market is disposable medical mouth mask, absorbent gauze mouth mask and other common mouth mask (as cotton mouth mask, cartoon mouth mask etc.).Rear both mainly as life health care articles for use, only have certain filter effect to the microorganism in air, the spittle and dust etc., be also often used as to keep out the wind warming; Its barriering effect of disposable medical mouth mask, than quite a lot of, can intercept particulate less in air, but all do not have the protection effect of PM2.5 or action effect undesirable, more without antibacterial functions.And these functions are all necessary for using when dealing with and pollute weather or live and remove puffball.
Due to the Air purification of anion, some anion mask products are in recent years also there are.But producing the tourmaline of anion is generally with graininess coating on chemical fiber plus material surface, its poor air permeability and have peculiar smell, user is difficult to accept.In the process that shitosan and nano-tourmaline powder are formed at polymer fiber by patent CNlOl775745B, evenly be sprayed onto the surface of polymer fiber, obtained a kind of filter efficiency is high and have the melt-blown non-woven material of antiseptic health care, can be used as mask material.Patent CN202340874U devises a kind of oxygen-adding antibacterial mask composite material be composited by chitin spinning building, anion and magnetic function fusion spray cloth, photocatalyst function spinning building trilaminate material, but, this patent there is no the preparation method pointing out described meltblown layer, several functions fabric be compounded with some superiority, but too increase the cost of some unnecessary functions.Patent CN203327997U describes a kind of washable anion mask, and anion layer is wherein sewed up by three layers of cover body fabric and leaves the design of opening and be built in mouth mask at opening part, enhances the washability of mouth mask.But its three layers of cover body fabrics need be sewed up with cotton thread, have supporting part at cover body envisaged underneath, all reduce the convenience of mouth mask processing.Not yet have at present and well can meet and can effectively filter PM2.5, antibacterial bacteriostatic, be convenient to again processing, reusable, cost price is lower, be applicable to the mouth mask product often used when ordinary populace does cleaning etc. in haze weather or life.
Summary of the invention
The utility model is exactly to achieve this end, and provides a kind of melt-blown anion mask.The design of this mouth mask is ingenious, not only effectively can protect PM2.5 but also can antibacterial bacteriostatic, simultaneously tailored appearance fashion, pro-skin is breathed freely, and it is convenient to produce, and has washable property, reusable, reduce use cost, be applicable to often using when ordinary populace does cleaning etc. in haze weather or life.
The utility model is achieved through the following technical solutions: a kind of melt-blown anion mask, and it comprises cover body and frenulum, and described frenulum and the cover body left and right sides two connect, and make with elastomeric material; Described cover body is made up of four layer materials, comprises external protection, filter course, purifying layer and skin-friendly layer; Described external protection, filter course and skin-friendly layer cementation together with frenulum becomes a mouth mask entirety, each side offers an opening at described skin-friendly layer; Described purifying layer is can the interlayer of independent separate, can put into from described skin-friendly layer both-side opening or take out.
Preferably, described external protection is polypropylene (PP) spinning building (specification 18-25 gram/m);
Preferably, described filter course is take PP as the active carbon spinning building (specification 22-33 gram/m) of matrix;
Preferably, described purifying layer is take PP as the anion fusion spray cloth (specification 30-60 gram/m) of matrix, is in the process of the melt-blown formation of PP polymer fiber, is obtained on the surface that tourmaline powder is evenly sprayed onto fiber; More preferably, the particle diameter of described nano-tourmaline powder is 75nm-5 μm;
Preferably, described skin-friendly layer is take PP as chitin spinning building or the bamboo fibre non-woven fabrics (specification 22-33 gram/m) of matrix;
Further, described cover body upper-center is provided with a Plastic Compression nose bar (length 8-12 centimetre);
Further, described cover body design length 16-20 centimetre, width 8-12 centimetre, there is fold (1 centimetre wide superposed fold 2-5 bar) centre, fold can be launched increase cover body area coverage, and form three-dimensional shape, making when wearing to leave space between the tight architrave portion of mouth mask surrounding and cover body and nose, mouth, strengthening perimetric hermetic and improving again wearing comfort;
Further, described purifying layer is can the interlayer of independent separate, length 14-18 centimetre, width 5.5-9.5 centimetre, there is fold (corresponding with described cover body fold) centre, adopts ultrasonic wave hot-pressing technique to be reinforced at two ends, fold is fixed, fold can be launched to increase active area; Further, described purifying layer is put into by described skin-friendly layer both-side opening or is taken out, and can not use purifying layer by choice for use one deck as required to multilayer purifying layer or selection;
Preferably, the mouth mask that described external protection, filter course and skin-friendly layer and frenulum are formed is overall, is to adopt special ultrasonic wave mouth mask hot press direct hot pressing reinforcing shaping, directly presses solidly built-in for described Plastic Compression nose bar when its hot pressing is reinforced shaping.
The beneficial effects of the utility model are specifically:
1, external protection, filter course, purifying layer and skin-friendly layer four layers of difference in functionality layer are adopted progressively to filter:
Described external protection has the effects such as the larger particle of isolation, the spittle, reduces the pollution of each layer inside counterpart cover body, can be made into different colours as required simultaneously, cover the dull black shown by described filter course active carbon, improves fashion, and with low cost;
Described filter course has active carbon functional, can filter absorption relatively fine particle further;
Described purifying layer is that melt-blown process forms PP superfine fibre nonwoven cloth, has the advantages such as specific area is large, porosity large, good permeability, strainability are good, maskable liquid and most of bacterium, fine particle; Add the ability that tourmaline powder possesses natural generation anion, the electric charge produced can draw in suck with the suspended particles of positive charge, dust, bacterium and virus, reach the object of depositing dust, sterilization, air is well purified, and is the major function layer that mouth mask effectively protects PM2.5, antibacterial bacteriostatic; Described tourmaline powder particle diameter is little, and be in the process of polymer fiber formation, be evenly sprayed onto the surface of fiber and obtain, while ensureing that melt blown process does not block shower nozzle, strengthen the binding ability of tourmaline powder and polymer fiber, extend the service life of the melt-blown anion material of PP;
Described skin-friendly layer has chitin function or is bamboo fibre nonwoven layer, improves the pro-skin performance of mouth mask; Chitin or bamboo fibre all take from natural material, blindly date with human skin, and have very strong hygroscopicity, effectively can adsorb the steam produced when mouth mask is worn, and improve comfortableness; Chitin is the uniquely positively charged tunicin that is found of occurring in nature up to now, can also electronegative particulate, bacterium and virus in absorbed air; Bamboo fibre has absorption, the effect such as antibacterial, can further improve the filter effect of mouth mask;
The utility model realizes high efficiency filter mainly through the melt-blown anion material of described purifying layer, therefore thick material layer is not needed, there is good filtration effect and the good advantage of gas permeability, be applicable to often using when ordinary populace does cleaning etc. in haze weather or life.
2, design ingenious, have washable, reusable, produce feature easily:
Mainly, cleaning can by its main barriers function damage layer for the reason that general existing disposable medical mouth mask can not clean; The mouth mask of described purifying layer from described external protection, filter course and skin-friendly layer institute's cementation together with frenulum can take off by the utility model design on the whole, needing, the mouth mask that only need clean described external protection, filter course and skin-friendly layer institute's cementation together with frenulum when cleaning is overall, and do not need to clean described purifying layer, protect effect of described purifying layer, also improve the washing fastness of mouth mask; Described purifying layer is reusable, also can choice for use as required: when filtering less demanding, can select not use purifying layer, now mouth mask uses as normal activated carbon mouth mask; When choice for use layer purifying layer, filter, clean-up effect significantly improves, purifying layer selects the more filtrations of the number of plies, clean-up effect better;
The utility model selects main material to be preferably PP polymer, therefore layers of material can be processed into the size coiled material of needs and after compound, directly hot-forming with ultrasonic technology, it is convenient to produce, and is applicable to large-scale production.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiment of the utility model is described further:
Refer to Fig. 1; the melt-blown anion mask of the utility model comprises cover body 1 and frenulum 2; described cover body is made up of four layer materials; comprise external protection 11, filter course 12, purifying layer 13 and skin-friendly layer 14; an opening 15 is each side offered at described skin-friendly layer 14; be provided with a Plastic Compression nose bar 16 at described cover body upper-center, in the middle of described cover body, have fold 17.
In the present embodiment; described external protection 11 is PP spinning building, and described filter course 12 is take PP as the active carbon spinning building of matrix, and described purifying layer 13 is take PP as the anion fusion spray cloth of matrix; described skin-friendly layer 14 is take PP as the chitin spinning building of matrix, and described frenulum 2 is elasticity rope band.
Described external protection 11, filter course 12 and skin-friendly layer 14 are together with frenulum 2; the special direct hot pressing of ultrasonic wave mouth mask hot press is adopted to reinforce shaping; and directly press solidly built-in for described Plastic Compression nose bar 16 when its hot pressing is reinforced shaping, form a mouth mask entirety, as shown in Figure 1.
Launched by fold 17 in the middle of cover body 1 described in of the present utility model melt-blown anion mask as shown in Figure 1, can increase the area coverage of cover body, form three-dimensional shape, schematic diagram refers to Fig. 2.
Described purifying layer 13 is can the interlayer of independent separate, can put into from described skin-friendly layer both-side opening or take out.Schematic diagram when Fig. 3 is the purifying layer independent separate in the utility model specific embodiment.There is fold (corresponding with described cover body fold 17) in the middle of described purifying layer 13, adopt ultrasonic wave hot-pressing technique to be reinforced at two ends, fold is fixed.Fold in the middle of described purifying layer 13 is launched to increase its active area (referring to Fig. 4), puts into when cover body 1 uses and the length and width degree of cover body 1 matches.
In the present embodiment, described cover body 1 length 18 centimetres, width 9 centimetres, there are 3 folds (1 centimetre of wide overlap) centre, and after launching, width is the widest reaches 15 centimetres; Described Plastic Compression nose bar 16 length 9 centimetres; Described purifying layer length 16 centimetres, width 6.5 centimetres, the widelyst after expansion reaches 12.5 centimetres.