CN104870057A - Filtering face-piece respirator having rounded perimeter - Google Patents
Filtering face-piece respirator having rounded perimeter Download PDFInfo
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- CN104870057A CN104870057A CN201380066093.1A CN201380066093A CN104870057A CN 104870057 A CN104870057 A CN 104870057A CN 201380066093 A CN201380066093 A CN 201380066093A CN 104870057 A CN104870057 A CN 104870057A
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- sweep
- mask body
- week section
- filtering face
- tack line
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Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1115—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a horizontal pleated pocket
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
Abstract
A filtering face-piece respirator 10 that includes a harness 14 and a mask body 12. First and second bond lines 30a, 30b are located on opposing sides of the mask body 12 and join a top portion 18 of the mask body 12 to the bottom portion 20. The first and second bond lines 30a, 30b extend from the frontal line of demarcation 22 to upper and lower perimeter segments 24a, 24b. The upper and lower perimeter segments 24a, 24b have an upper linear segment 32a and a lower linear segment 32b, respectively, located between first and second curved portions 34a, 34b. The first and second curved portions 34a, 34b each extend from the respective upper or lower linear segment 32a, 32b to the first and second bond lines 30a, 30b. The invention provides a more rounded finish to the mask body perimeter, which enables the mask body to exhibit a more comfortable fit.
Description
The present invention is subordinated to filtering face-piece respirator, and described filtering face-piece respirator has bending periphery, and this bending periphery contacts with bottom with the top of mask body.
Background technology
Respirator is worn on the respiration channel of people usually, at least one in following two common objects: (1) prevents impurity or pollutant from entering the respiratory system of wearer; (2) in the pathogen suppressing other people or thing to be exposed to be breathed out by wearer and other pollutant.In a first scenario, in atmosphere such as, containing wearing respirator in the environment of the particle that wearer is harmful to, in automobile body repair shop.In the latter case, in the environment that may pollute other people or thing, respirator is worn, such as, in operating room or toilet.
Design various respiratory device to meet the needs of any one (or both) in these purposes.Some respirator is classified as " filtering face ", because mask body itself is used as strobe utility.Be different from and use with the filter cylinder that can be attached (for example, see the United States Patent (USP) authorizing the people such as Yuschak revises 39,493 (U.S.Patent RE39,493) respirator of the rubber) combined or elastomer mask body or use embed the filter element of injection moulding (for example, see authorize the United States Patent (USP) 4 of Braun, 790,306 (U.S.Patent4,790,306) respirator), filtering face-piece respirator is designed to make filter medium cover the major part of whole mask body, makes to there is no need to install or replace filter cylinder.These filtering face-piece respirators usually have one of following two kinds of configurations: moulded-on type respirator and flat-fold respirator.
Molded filtering face-piece respirator comprises thermal bonding fibre nonwoven webs or open-work plastic wire, usually to provide its cup-shaped configuration to mask body.Moulded-on type respirator is using and is often keeping identical shape during storing both.Therefore, these respirators cannot be folded into flat for storage and transport.The example disclosing the patent of the filtering face-piece respirator of molding comprises the United States Patent (USP) 7 authorizing the people such as Kronzer, 131,442, the United States Patent (USP) 6,923,182,6 of the people such as Angadjivand, 041,782, the United States Patent (USP) 4,807,619 of people and the United States Patent (USP) 4 of Berg such as Dyrud, 536,440.
As its name suggests, flat-fold respirator can be folded into flat for transport and storage.This respirator also deployable cup-shaped configuration in use.The example of flat-fold respirator is shown in following United States Patent (USP): authorize the people's such as Bostock 6,568,392 and 6,484, and 722 and authorize 6,394,090 of Chen.
Although it is easily that flat-fold respirator can put down folding with shipment and storage, these respirators when being tending towards limiting point that is sharp or sharp outline during horizontal folding, in the upper contact bottom of this some place mask body perimeter.When wearing this respirator within the time period extended, this point may pinch the cheek of wearer.The present invention, describes as follows, by provide there is new periphery the respirator of horizontal folding can process this discomfort, this new periphery eliminates the region of the top of described mask body perimeter and the sharper ground sharp outline of lower contacts.
Summary of the invention
The present invention is subordinated to the filtering face-piece respirator comprising band tool and mask body.Described mask body comprises filtration, and described filtration has: top, bottom, last week section, next week section, front line of demarcation, the first tack line and the second tack line.The opposition side that described first tack line and described second tack line are positioned at described mask body joins the described top of described mask body to described bottom.Described first tack line and described second tack line extend to from described front line of demarcation described last week section and described next week section.When described mask body flattens, described last week section and described next week section comprise and lay respectively at upper straightway between the first sweep and the second sweep and lower straightway, described first sweep and described second sweep are positioned at the end opposite place of described upper straightway and lower straightway.Described last week section and described next week section in each in described first sweep and described second sweep respectively since corresponding described upper straightway or lower straightway extend to described first tack line and described second tack line.
When in use configuration, provide described first sweep and described second sweep to provide the surface treatment of rounding more to described mask body perimeter, this enables described mask body show more comfortable stickiness.From aesthstic position, time from the side, described mask body also has more attracting outward appearance, and this is because described periphery has more continuous print outward appearance.
nomenclature
Term described below has following implication:
" comprise " and refer to that its definition is as the definition of the standard in patent term, be roughly with the open-ended term of " comprising ", " having " or " containing " synonym.Although " comprise ", " comprising ", " having " and " containing " and their distortion be conventional open-ended term, but the present invention also can use compared with narrow sense term (such as " and substantially by ... composition ") suitably describe, the reason being semi open model term compared with the term of narrow sense is that it only eliminates those and will the performance playing its desired function of respirator of the present invention be had to thing or the element of illeffects;
" pure air " refers to the atmospheric ambient air crossed and filter the certain volume of pollutant;
" pollutant " means particle (comprising dust, mist and smog) and/or can not be regarded as particle in general but aerial other material (as organic vapor etc.) that may suspend;
" crosswise dimension " is when observing described respirator from front portion, extends laterally across the dimension of described respirator from side to side;
" cup-shaped configuration " means fully to cover the nose of people and any container shapes of oral area;
" bend " and mean not to be the extension of straight line;
" exterior gas space " refers to that the gas of exhalation enters the ambient air gas compartment wherein after passing and exceed mask body and/or outlet valve;
" filtering face " refers to that mask body itself is designed to be filtered through its air; Do not exist and be attached on mask body or be molded as mask body to realize the filter cylinder that can independently identify or the insert molded filter elements of this object;
" filter " or " filter course " refers to one or more breathable material layer, and described layer is suitable for the main purpose removing pollutant (such as particle) from the air stream through it;
" filter medium " refers to ventilative structure, and this structure is designed to remove the pollutant through in its air;
" filtration " means the permeable structure of cardinal principle air for filtered air;
" the first side " means to be positioned at perpendicular to the mask body region of crosswise dimension to the plane side of point mask body;
" flange " means the projecting part giving its agent structure integrality of therefrom giving prominence to or intensity;
" inwardly fold " place meaning to extend towards described parts from it to bend backward;
" anteriorly " or " front " mean when respirator is worn, be in and extend away from the direction of the face of people;
" band tool " refers to and contributes on the face of wearer, support the structure of mask body or the combination of parts;
" one " means to manufacture together simultaneously; Namely make as parts, instead of be bonded together subsequently two independent parts manufactured;
" internal gas space " refers to the space between mask body and the face of people;
" leading edge " refers to the edge be not attached;
" line of demarcation " means broken line, seam, bonding wire, tack line, suture, hinge and/or its any combination;
" linearly " means along substantially extending point-blank;
" major part " means the filtration fraction of described mask body;
" mask body " means the structure of breathing freely, above its nose being designed to be fitted in people and oral area, and contribute to limiting the internal gas space (comprising the seam of its layer together with components bonding and tack line) be separated with exterior gas space;
" nose clip " refers to mechanical device (instead of nose foam), and described device is suitable for using on mask body, to improve at least around the sealing of wearer's nose;
" periphery " refers to the outward flange of mask body, and when someone puts on respirator, the face being roughly close to wearer arranges by this outward flange;
" pleats " mean to be designed to from it or from the part be folded back with it;
" polymer " and " plasticity " refers to material separately, and this material mainly comprises one or more polymer and also can comprise other compositions;
" multiple " refer to two or more;
" radioactive " means the curvature with somewhat constant;
" respirator " refers to and wears to provide the air filter of pure air for breathing to wearer by someone;
" the second side " means to be positioned at perpendicular to the mask body region (second side with first side contrary) of crosswise dimension to the plane side of point mask body;
" to fit tightly " or " laminating closely " means to provide substantially airtight (or substantially leak free) laminating (between described mask body and the face of described wearer); And
" laterally extending " refers to and extends on crosswise dimension in general.
Accompanying drawing explanation
Fig. 1 is the front perspective view that flat folding filter mask respirator 10 according to the present invention is worn on when human face goes up;
The top view of the respirator 10 of the configuration that Fig. 2 does not open for being in shown in Fig. 1;
The bottom view of the respirator 10 of the configuration that Fig. 3 does not open for being in shown in Fig. 1;
Fig. 4 is the sectional view of the mask body 12 intercepted along the line 3-3 of Fig. 2;
Fig. 5 is the sectional view of the filtration 16 intercepted along the line 4-4 of Fig. 3;
Fig. 6 is the front view of the mask body 12 that can use in conjunction with the present invention; And
Fig. 7 is the left side view of mask body 12 according to the present invention.
Detailed description of the invention
Putting into practice in process of the present invention, filtering face-piece respirator be provided be positioned at mask body week section end opposite on the first bending section and the second bending section.These bending sections make the periphery realizing rounding in the region of the upper contact bottom of described mask body.The periphery of described rounding allows to realize more comfortable laminating.
Fig. 1 illustrates the example of filtering face-piece respirator 10, and it uses to provide clean air for breathing to wearer in the mode relevant with the present invention.Filtering face-piece respirator 10 comprises mask body 12 and band tool 14.Mask body 12 has filtration 16, and the air of suction had to pass through this filtration before entering the respiratory system of wearer.Filtration 16 removes the pollutant from surrounding environment, breathes pure air to make wearer.Mask body 12 comprises top 18 and bottom 20.Top 18 and bottom 20 are separated by line of demarcation 22.In this specific embodiment, line of demarcation 22 is the front folding parts being positioned at tack line place, and described tack line extends laterally across the core of described mask body from side to opposite side.Mask body 12 also comprise have last week section 24a and next week section 24b periphery 24.With tool 14 have by the nail 29 adjacent with periphery 24 be fixed to the top 18 of mask body 12 first on be with 26.Also there is with tool 14 the second time band 27 being fixed to flange 30a by nail 29.
Fig. 2 illustrates the respirator 10 of the flat folding configuration of the level of being in.The top 18 of respirator mask main body 12 has section 24a last week, front line of demarcation 22, first tack line 30a and the second tack line 30b.Described first tack line 30a and described second tack line 30b is positioned at 31a, 31b place, opposition side of mask body 12 and the top 18 of mask body 12 is joined to bottom 20 (Fig. 1).First tack line 30a and the second tack line, 30b extends to section 24a last week in folding part 22 in the past.When mask body 12 flattens, last week, section 24a had the upper straightway 32a between the first sweep 34a and the second sweep 34b, and the first sweep 34a and the second sweep 34b is positioned at the end opposite place of straightway 32a.The first sweep 34a in last week section 24a and described second sweep 34b extends to described first tack line 30a and the second tack line 30b from straightway 32a corresponding.Mask body 12 also has and lays respectively at flange 36a on opposition side 31a and 31b of mask body 12 and flange 36b.Plane 38 is to dividing mask body 12 to limit the first side 31a and the second side 31b.Flange 36a inwardly can fold towards the filtration 16 contacted with them with flange 36b.Each flange typically occupies the surface area of about 1 square centimeter to 15 square centimeters, more typically about 2 square centimeters to 12 square centimeters, and more typically about 5 square centimeters to 10 square centimeters.Integration flange can have disposed thereon with the solder joint strengthening flange hardness or bonding point 35.Or, adhesive phase can be utilized to strengthen flange hardness.Flange can have the bending modulus of at least 10 megapascal (MPa)s (MPa) when bending along its first type surface, more typically at least 20MPa.At upper end, flexural modulus is typically less than 100MPa, is more typically less than 60MPa.Flange 36a, 36b also typically extend away from tack line 30a, the 30b at least 2 millimeters (mm) on mask body 12, more typically at least 5mm, and more typically at least 1 centimetre to 2 centimetres (cm).Flange 36a, 36b can integratedly or the major part being connected to mask body 12 of non-integral and can comprising have in multiple layers of mask body filtration 16 one or more or all.Different from filtration 16, the described layer comprising flange 36a, 36b can be compressed, thus makes their almost fluid impermeables.Flange 36a, 36b can be the prolongation of the material for making mask body filtration 16, or they can be made up of independently material such as rigidity or semirigid plastic.Mask body week section 24a also can have a series of adhesive or weld thing 37 to be bonded together by multiple layers of mask body 12.Therefore this week section 24a can not be very fluid-impermeable.Top 18 can comprise one or more pleats line, and this one or more pleats line extends transverse to the second tack line 30b from the first tack line 30a.
Fig. 3 illustrates that section 24b also can have a series of adhesive or weld thing 37 to engage described multiple layer next week.The remainder of filtration 16 its extensional surface most of Shang – from described periphery Chao Xiang Nei – can be abundant fluid-impermeable, the region of wherein possible exception is bonding tack line, sealing wire or fold line.The bottom 20 of mask body 12 has section 24b next week between the first tack line 30a and the second tack line 30b.When mask body 12 flattens, next week, section 24b had the lower straightway 32b between the first sweep 34a and the second sweep 34b, and described first sweep 34a and the second sweep 34b is positioned at the end opposite place of lower straightway 32b.Described first sweep 34a in next week section 24b and described second sweep 34b extends to described first tack line 30a and the second tack line 30b from straightway 32b corresponding respectively.Sweep 34a, 34b can be the bend of the radius of the vicissitudinous radius of tool or somewhat constant.Constant radius can be about 10 millimeters to 70 millimeters (mm), more typical 20mm to 60mm and be more typically 30mm to 50mm.Radioactive section can be cut away from mask body blank and provide with 24b along all section 24a that (top of figure mask body 12 contacts bottom 20 at tack line 30a, 30b.Last week section 24a and next week section 24b can be long, the more typical 13cm to 19cm of about 10cm to 20cm long and more typically length be 15cm to 18cm.The level and smooth portion that radially bends can change the facial contact when putting on respirator.Radioactive cutting also can make leading edge 39 major part substantially peripherally mate with periphery.Sweep 34a, 34b in described last week section 24a and described next week section 24b in each all sections allow all section 24a and 24b folding away from each other with butterfly pattern as shown in Figure 2.First flange 36a and the second flange 36b joins mask body 12 to and can respectively around substantially rotating with the axis of these line parallels or folding at tack line 30a, 30b place.The leading edge 39 of flange 36a, 36b originates in the position that tack line 30a, 30b contact periphery 24.Leading edge 39 can be configured to mate with periphery 24, and periphery 24 is moving up towards by the side of mask body 12 to the plane 38 of dividing.Leading edge 39 is mated with periphery 24 substantially, is about 10% to 50% of periphery 24 total length.Described first tack line 30a and the second tack line 30b is biased from plane 38 with angle [alpha], and when observing mask body 12 from top or bottom along folding direction, plane 38 extends perpendicular to the periphery 24 of mask body 12.Angle [alpha] can be 0 degree to about 60 degree, is more typically about 30 degree to 45 degree.Bottom 20 also can comprise the one or more pleats line laterally extending to the second tack line 30b from the first tack line 30a.
Fig. 4 illustrates the example of the pleats configuration according to mask body 12 of the present invention.As shown in the figure, the top of mask body 12 or panel 18 also can have front line of demarcation 22 described in pleats 40 and 41 and half bar.The bottom of mask body 12 or panel can comprise pleats 42 and 44 and half bar line of demarcation 22.Line of demarcation 22 can be the folding and/tack line separated in the top 18 of mask body 12 and bottom 20.The bottom 20 of mask body 12, compared with top 18, can comprise identical, more or less filter media surface region.Mask body 12 also can comprise the periphery web being fixed to mask body along its periphery.Periphery web can be folding at periphery 24 place on mask body.Periphery web also can be the extension around covering web in section 24a and 24b folds and fixes.Nose clip 56 (Fig. 1,2,6 and 7) can be arranged on the top 18 of mask body, and nose clip center is adjacent with all section 24a between filtration 16 and periphery web.Nose clip can be made up of flexible metal or plastics, and this flexible metal or plastics manually can be adjusted to fit by wearer the profile of wearer's nose.
Fig. 5 illustrates that filtration 16 can comprise one or more layer, covers web 58, outer covering web 60 and filter course 62 such as.Interior covering web 58 and outer covering web 60 can be provided for protection filter course 62 and avoid fluffing and for stoping the fiber from filter course 62 to enter face masks.During use respirator, air across-layer 60,62 and 58 successively before entering face masks.Then the air be arranged in the interior air space of mask body can be sucked by wearer.When the wearer breathes out, air is subsequently along contrary direction across-layer 58,62 and 60.Alternatively, outlet valve (not shown) can be set on mask body and remove fast to enter exterior gas space from internal gas space to allow exhalation air, and not through filtration 16.Usually, should select to provide the non-woven material of comfort (particularly providing comfort on the side of the filtration contacted with wearer's face) to make covering fabric 58 and 60.The multiple filter course that can use in conjunction with supporting structure of the present invention and the fibroreticulate structure of covering will be described in more detail below.Filtration also can have structural knotting or mesh sheet, described structural knot or mesh sheet juxtaposition against at least one in layer 58,60 or 62 or many persons, usually against the outer surface of outer covering web 60.At title Expandable FaceMask with Reinforcing Netting (" having the easily extensible face shield adding consolidated web ") is in U.S. Patent Application Publication 2010/0154806A1, describes the use of this type of mesh sheet.In order to improve wearer's stickiness and comfort level, elastomer face seals can be fixed to the periphery of filtration 16.When putting on respirator, this type of face seal can radially extend the face contacting wearer.Described by the example of face seal has in following patent: the United States Patent (USP) 6,568,392 authorizing the people such as Bostock, the United States Patent (USP) 5,617,849 authorizing the people such as Springett, authorize the United States Patent (USP) 4,600,002 of the people such as Maryyanek; With the Canadian Patent 1,296,487 authorizing Yard.Mask body perimeter 24 be also collapsible in nasal region from it, with realize close fitting-see U.S. Patent Application Publication 2011/0315144A1.
Fig. 6 illustrates the mask body 12 of the configuration being in use.In use, flange 36a, 36b is configured to and the first side of the major part 63 of mask body 12 and the second side contacts.Flange 36a, 36b inwardly can fold towards mask body.When flange towards mask body 12 major part 63 inwardly tractive time, respirator shows as moulded-on type respirator instead of flat-fold respirator.That is, respirator presents structural calyculus, and it better can better keep this shape during use.Therefore, having the respirator of the present invention of flange 36a, 36b of the inside tractive of major part 63 towards mask body 12, in some sense, is the mixture between moulded-on type respirator and flat-fold respirator.
Fig. 7 also illustrates the mask body 12 of the configuration being in use.Mask body 12 illustrates the structure in neighboring area 64 with rounding, and section 24a last week of mask body contacts at neighboring area 64 place with section 24b next week.When respirator 10 is worn, the structure of rounding stops mask body 12 pinch the cheek of wearer or otherwise cause discomfort.
filtration
The filtration used in conjunction with the present invention can adopt multiple different shape and configuration.Filtration is usually by conformal process, thus it is correctly fitted against supporting structure or in supporting structure.In general, the shape of filtration and configuration correspond to the general shape of mask body.Although the filtration illustrated has comprise filter course and two fibroreticulate multiple layers of covering, filtration just can comprise the combination of filter course or filter course.Such as, can more to determine and optionally downstream filter layer upstream arranges pre-filter layer.In addition, the sorbing material of such as active carbon can be arranged between the fiber forming filtration and/or multilayer.And, also independent particle filtering layer can be used together in conjunction with adsorption layer, to provide the filtration to particle and steam.Filtration can comprise one or more enhancement Layer contributing to providing this cup-shaped configuration.Filtration also can have one or more level and/or vertical line of demarcation that contribute to its structural intergrity.First flange and the second flange, but when used in accordance with the invention, can produce enhancement Layer and marginal unnecessary needs.
The structure of granule capturing type filter or gas and vapor type filter is can be for the filtration in mask body of the present invention.Filtration also can be and suppresses liquid to transfer to the barrier layer of opposite side from the side of filter course, with suppress (such as) liquid aersol or liquid splash (as blood) permeate as described in filter course.According to application demand, the filter medium that multilayer is similar or different can be used, to construct filtration of the present invention.The filter that advantageously can utilize in layered mask body of the present invention has low pressure drop (such as under the face velocity of 13.8 centimeters per seconds for being less than about 195 Pascal to 295 Pascals) in general, to minimize the respiratory work amount of face mask wearer.Filter course additionally can be flexible and can have enough shear strengths, makes them under the service condition expected, substantially keep their structure.The example of particle catcher/filter comprises one or more fine inorganic fibers (such as glass fibre) web or polymer synthetic fiber web.Synthetic fibers web can comprise charged electret, polymeric microfibers by such as molten explained hereafter of to blow and so on.The special-purpose that the Polyolefin microfibers formed by charged polypropylene provides granule capturing to apply.The filter course substituted can comprise the absorbent component for removing harmful gases or foul gas from breathe air.Adsorbent can comprise and sticks to powder in filter course or granule by adhesive, binding agent or fibre structure.See authorizing the United States Patent (USP) 6,334,671 of the people such as Springett and authorizing the United States Patent (USP) 3,971,373 of Braun.Adsorbent layer can pass through coated substrate (such as fiber or reticulated polymer foam) and be formed, to form thin adhesion layer.Sorbent material can comprise through or not through chemically treated active carbon, Woelm Alumina-silica catalyst substrates and aluminium oxide.The example that can be adapted to the sorbent filter structure of various structure is authorizing the United States Patent (USP) 6,391 of the people such as Senkus, described by having in 429.
Usually filter course is selected, to realize required filter effect.Roughly, filter course will remove particle and/or other pollutant of high percentage from the air-flow through it.For fibrous filter layer, select fiber according to the substance classes that will filter out, and usually fiber is selected, to make in moulding process them together non-caked.As described above, filter course can have various shape and form, and its thickness is generally about 0.2 millimeter (mm) to 1 centimetre (cm), is more typically about 0.3mm to 0.5cm, and it can be the net being roughly plane, or it also can be the corrugated surface area to provide expansion---such as, see the United States Patent (USP) 5,804,295 and 5 authorizing the people such as Braun, 656,368.Described filter course can also comprise the multiple filter courses be bonded together with binding agent or any alternate manner.Known (or developing subsequently) can be used as filtering material for the formation of substantially any applicable material of filter course.Meltblown fiber web, such as at Wente, VanA., Superfine Thermoplastic Fibers, 48Indus.Engn.Chem., 1342et seq. (1956) (superfine thermoplastic fibre, industry and engineering chemistry, 1342nd page and continued page etc. (1956)) described in, availablely especially (authorize the United States Patent (USP) 4 of the people such as Kubik see (such as) when particularly existing with the form of forever charged (electret), 215,682).These melt blown fibers can be the microfibres (be called " blown micro fiber ", be called for short BMF) that effective fiber diameter is less than about 20 microns (μm), are generally the microfibre of about 1 μm to 12 μm.Effective fiber diameter can according in the minutes 1B of the Institution of Mechanical Engineers (Institution Of Mechanical Engineers) in nineteen fifty-two London, the method that describes in The Separation Of Airborne DustParticles (separation of unloaded dust granules) of Davis, C.N. measures.Particularly preferred containing the BMF fleece by polypropylene, poly-(4-methyl-1-pentene) and their fiber be combined to form.As the United States Patent (USP) Re.31 at van Turnhout, it is suitable that the fiber of charged fibrillation film of instruction in 285 and rosin wool fiber web and glass fiber web or solution blowing web or electrostatic spraying fiber web (particularly with the form of mems thin film) also can be.Can by allowing fiber contacts water give fiber by electric charge, as disclosed in following United States Patent (USP): authorize the people's such as Eitzman 6,824,718; Authorize the people's such as Angadjivand 6,783,574; Authorize the people's such as Insley 6,743,464; Authorize the people's such as Eitzman 6,454,986 and 6,406,657; And authorize the people's such as Angadjivand 6,375,886 and 5,496,507.By authorizing the United States Patent (USP) 4,588 of the people such as Klasse, corona charging method disclosed in 537 or the United States Patent (USP) 4,798 by authorizing Braun, electric charge is given fiber by triboelectric charging method disclosed in 850.In addition, additive package can be contained in the fibre, to strengthen the fibroreticulate strainability (United States Patent (USP) 5,908,598 see authorizing the people such as Rousseau) prepared by water mise-a-la-masse method.Especially fluorine atom can be arranged on the fiber surface place in filter course, to improve the strainability in mist environment, see the United States Patent (USP) 6,398,847B1,6,397,458B1 and 6,409, the 806B1 that authorize the people such as Jones.The usual basic weight of electret BMF filter course is about 10 grams/m to 100 grams/m.When the technology described in the patent of ' 507 of authorizing the people such as Angadjivand according to (such as) carries out charging and being included in the fluorine atom authorized and mention in the patent of the people such as Jones, basic weight can be respectively about 20g/m
2to 40g/m
2about 10g/m
2to 30g/m
2.
Interior covering fleece can be used, thus obtain the smooth surface of the face for contacting wearer, and can use and outer cover fleece, with the loose fiber collected in mask body or obtain aesthetic.Cover fleece and usually can not provide any filtration benefit substantially for filtration, but the effect of prefilter can be played when it is arranged on (or upstream) on the outside of filter course.In order to obtain the comfortableness of suitable degree, interior covering fleece preferably has lower basic weight, and by meticulousr processbearing astrocyte.More particularly, covering fleece can be made and had about 5g/m
2to 50g/m
2(be generally 10g/m
2to 30g/m
2) basic weight, and fiber can be less than 3.5 fiber numbers (be usually less than 2 fiber numbers, more typically less than 1 fiber number, but be greater than 0.1 fiber number).The fiber diameter of the fiber used in a cover web is generally about 5 microns to 24 microns, about 7 microns to 18 microns usually, and more generally about 8 microns to 12 microns.Cover web material and can have elasticity to a certain degree (when rupturing usually but not necessarily 100% to 200%), and plastically deformable.
Being applicable to cover fibroreticulate material can be blown micro fiber (BMF) material, particularly polyolefin BMF materials, such as polypropylene BMF material (comprise polypropylene blend, and polypropylene and poly blend).The United States Patent (USP) 4,013 authorizing the people such as Sabee is described in, in 816 for the preparation of the applicable technique covering fibroreticulate BMF material.Fiber collecting can be passed through on smooth surface (being generally ganoid cylinder or rotating collector) to form described fleece---see the United States Patent (USP) 6,492,286 authorizing the people such as Berrigan.Spun-bonded fibre can also be used.
Typical covering fleece can be made up of polypropylene or the polyacrylic polypropylene/polyolefin blends containing 50 percentage by weights or more.Have been found that these materials can bring flexibility and the comfortableness of height to wearer, and when filtering material is polypropylene BMF material, can not need between the layers to remain fixed on filtering material when adhesive.The polyolefine material being suitable for using in a cover web can comprise (such as) single polypropylene, two kinds of polyacrylic blends and polypropylene and poly blend, polypropylene and gather the blend of (4-methyl-1-pentene) and/or the blend of polypropylene and polybutene.Be the polypropylene BMF be made up of the acrylic resin deriving from Exxon Mobil Corporation (Exxon Corporation) " Escorene 3505G " for covering an example of fibroreticulate fiber, it provides about 25g/m
2basic weight, the fiber number of the fiber of (average measurement value of 100 fibers is about 0.8) in the scope of 0.2 to 3.1.The another kind of fiber be applicable to is polypropylene, polyethylene BMF (being prepared by the mixture comprising the resin " Escorene 3505G " of 85% and the ethylene/alpha-olefin copolymer " Exact 4023 " deriving from Exxon Corporation equally of 15%), and its basic weight provided is about 25g/m
2, and the fiber number of average fiber is about 0.8.The spunbonded materials be applicable to derives from group of Germany and receives (Peine, Germany) Corovin GmbH company, commodity are called " CorosoftPlus 20 ", " Corosoft Classic 20 " and " Corovin PP-S-14 ", and derive from the polypropylene/viscose rayon combing material of commodity by name " 370/15 " of J.W.Suominen OY company of Finland Na Jila (Nakila, Finland).
The covering fleece used in the present invention preferably has little fiber outstanding from web surface after the treatment, therefore has level and smooth outer surface.The fibroreticulate example of the covering that can use in the present invention is disclosed in the United States Patent (USP) 6 that (such as) authorizes Angadjivand, 041,782, authorize the United States Patent (USP) 6,123,077 of the people such as Bostock and authorize in the WO 96/28216A of the people such as Bostock.
breather component
Can be made of a variety of materials with belt used in tool, such as thermoset rubber, thermoplastic elastomer (TPE), braiding or knitting yarn/building rubber compound, non-resilient braiding component etc.Described belt can be made up of elastomeric material, such as elastic weaving material.Described belt preferably can be elongated to the twice that is greater than its total length and recover its relaxed state.The length of described belt also can be increased to three times or four times of its relaxed state length, and can return to its original state when removing tension force and can not have any damage to it.Therefore, elastic limit is preferably two times, three times or four times that are not less than length when band is in its relaxed state.Usually, belt is that about 20cm to 30cm is long, 3mm to 10mm is wide and about 0.9mm to 1.5mm is thick.Band can be used as continuous print band and draws loop to extend to second from first to draw loop, or band can have multiple part, and these parts other fasteners available or clasp are bonded together further.Such as, band can have the Part I and Part II that are bonded together with securing member, and when removing mask body from face, described securing member can by wearer's quick release.Alternatively, described band can form ring that the ear around wearer places-for example, see authorize the United States Patent (USP) 6,394,090 of the people such as Chen.The example of the spendable band relevant with the present invention is shown in the United States Patent (USP) 6,332,465 authorizing the people such as Xue.For the example of fastening or fastening mechanism that one or more parts of described band are bonded together, such as, be illustrated in following United States Patent (USP): the United States Patent (USP) 6 authorizing the people such as Brostrom, 062,221, the United States Patent (USP) 5,237 of Seppala is authorized, 986, and authorize the United States Patent (USP) Isosorbide-5-Nitrae 95,785A1 of Chien.Described band tool also can present the form of reusable balladeur train, or presents the form of the adhesive phase on the inner surface being arranged on described periphery.
As described above, outlet valve can be attached to mask body, so that purge the exhalation air from internal gas space.Use outlet valve by removing the damp and hot exhalation air from face masks fast, thus the comfort level of wearer can be improved.Such as, see the United States Patent (USP) 7,188,622,7,028,689 and 7,013,895 authorizing the people such as Martin; Authorize the people's such as Japuntich 7,428,903,7,311,104,7,117,868,6,854,463,6,843,248 and 5,325,892; Authorize the people's such as Mittelstadt 6,883,518; And authorize the RE37 of Bowers, 974.There is provided applicable pressure drop and substantially any outlet valve that suitably can be fixed to mask body can use in conjunction with the present invention, so that the exhalation air from internal gas space is promptly sent to exterior gas space.
The nose clip used in the present invention can be any additional parts substantially, and it helps improve the stickiness on wearer's nose.Because the face adorned oneself with is presented in nasal region, nose clip can be used better to help to realize the suitable laminating in this position.Nose clip can comprise the flexible metal of (such as) dead-soft as aluminium, thus can be configured as make face shield above the nose of wearer and nose and cheek intersection keep needed for pertinent relation.Be suitable for the example of nose clip at United States Patent (USP) 5,558,089 and authorize the Des.412 of Castiglione, shown in 573.Other nose clips at U.S. Patent application 12/238, described by having in 737 (being filed on September 26th, 2008), U.S. Patent Publication 2007-0044803A1 (being filed on August 25th, 2005) and 2007-0068529A1 (being filed on September 27th, 2005).
Under the prerequisite not departing from the spirit and scope of the invention, various amendment and change can be carried out to the present invention.Therefore, the present invention is not limited to foregoing, but the control of the restriction mentioned by following claims and any equivalent thereof.
The present invention also can when do not exist herein not specifically described any element suitably implement.
Above-cited all patents and patent application (comprise in background parts those) are all incorporated herein by reference.When the disclosure in the file that this type of is incorporated to exist between above-mentioned description conflict or difference time, description should be stated above and be as the criterion.
Claims (13)
1. a filtering face-piece respirator, described filtering face-piece respirator comprises:
(a) band tool; With
(b) mask body, described mask body comprises filtration, described filtration has top, bottom, last week section, next week section, front line of demarcation, and first tack line and the second tack line, the opposition side that described first tack line and described second tack line are positioned at described mask body joins the described top of described mask body to described bottom, described first tack line and described second tack line extend to from described front line of demarcation described last week section and described next week section, when described mask body flattens, described last week section and described next week section comprise and lay respectively at upper straightway between the first sweep and the second sweep and lower straightway, described first sweep and described second sweep are positioned at the end opposite place of described upper straightway and described lower straightway, described last week section and described next week section in each all sections in described first sweep and described second sweep respectively since corresponding upper straightway or lower straightway extend to described first tack line and described second tack line.
2. filtering face-piece respirator according to claim 1, wherein said first sweep and described second sweep have the curvature of somewhat constant.
3. filtering face-piece respirator according to claim 2, wherein said first sweep and described second sweep have the radius of about 10 millimeters to 70 millimeters.
4. filtering face-piece respirator according to claim 3, wherein said first sweep and described second sweep have the radius of about 20 millimeters to 60 millimeters.
5. filtering face-piece respirator according to claim 1, wherein said first sweep and described second sweep have the radius of about 30 millimeters to 50 millimeters.
6. filtering face-piece respirator according to claim 1, wherein said last week section and described next week section can be folding away from each other with butterfly pattern.
7. filtering face-piece respirator according to claim 1, described filtering face-piece respirator is the flat-fold respirator of level.
8. filtering face-piece respirator according to claim 1, wherein said last week section and described next week section be that 10cm to 20cm is long separately.
9. filtering face-piece respirator according to claim 1, wherein said last week section and described next week section be that 13cm to 19cm is long separately.
10. filtering face-piece respirator according to claim 1, wherein said last week section and described next week section length be 15cm to 18cm separately.
11. filtering face-piece respirators according to claim 1, wherein said first sweep and the vicissitudinous radius of described second sweep tool.
12. 1 kinds of filtering face-piece respirators, described filtering face-piece respirator comprises:
(a) band tool; With
(b) mask body, described mask body comprises can the filtration of horizontal folding, described filtration has top, bottom, last week section, next week section, front line of demarcation, and first tack line and the second tack line, the opposition side that described first tack line and described second tack line are positioned at described mask body joins the described top of described mask body to described bottom, described first tack line and the second tack line extend to from described front line of demarcation described last week section and described next week section, when described mask body flattens, described last week section and described next week section comprise and lay respectively at upper straightway between the first sweep and the second sweep and lower straightway, described first sweep and described second sweep are positioned at the end opposite place of described upper straightway and described lower straightway, the length of described upper straightway and described lower straightway is about 13cm to 19cm, described last week section and described next week section in each all sections in described first sweep and described second sweep there is the radius of curvature of 10 millimeters to 70 millimeters separately, and extend to described first tack line and described second tack line from straightway corresponding and lower straightway, wherein when described respirator is placed to the state of flat folding, described last week section and described next week section can be folding away from each other with butterfly pattern.
13. want the filtering face-piece respirator described in 12 according to right, and wherein said first sweep and described second sweep have the radius of about 20 millimeters to 60 millimeters, and wherein said last week section and described next week section length be 15cm to 18cm separately.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/728,008 US20140182601A1 (en) | 2012-12-27 | 2012-12-27 | Filtering face-piece respirator having rounded perimeter |
| US13/728,008 | 2012-12-27 | ||
| PCT/US2013/074243 WO2014105421A1 (en) | 2012-12-27 | 2013-12-11 | Filtering face-piece respirator having rounded perimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104870057A true CN104870057A (en) | 2015-08-26 |
| CN104870057B CN104870057B (en) | 2018-03-27 |
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ID=51015733
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380066093.1A Expired - Fee Related CN104870057B (en) | 2012-12-27 | 2013-12-11 | Filtering face-piece respirator with rounding periphery |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20140182601A1 (en) |
| EP (1) | EP2938407B1 (en) |
| JP (1) | JP6309024B2 (en) |
| KR (1) | KR20150097805A (en) |
| CN (1) | CN104870057B (en) |
| AU (1) | AU2013368273B2 (en) |
| BR (1) | BR112015015164A2 (en) |
| ES (1) | ES2675793T3 (en) |
| PL (1) | PL2938407T3 (en) |
| RU (1) | RU2608809C1 (en) |
| WO (1) | WO2014105421A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104305592A (en) * | 2014-09-25 | 2015-01-28 | 陆巍 | Full attaching type dustproof and anti-fog mask |
| US11724055B2 (en) | 2019-03-27 | 2023-08-15 | Koninklijke Philips N.V. | Multi-layers cushion assembly for a patient interface |
| US20210393140A1 (en) * | 2020-05-04 | 2021-12-23 | Claritymask, Inc. | Transparent face mask with optional temperature monitoring device and optional detachable eye protection |
| DE202020102872U1 (en) | 2020-05-19 | 2020-06-10 | Deep GmbH | Respirator |
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| US20100154805A1 (en) * | 2008-12-18 | 2010-06-24 | 3M Innovative Properties Company | Flat fold respirator having flanges disposed on the mask body |
| CN201550642U (en) * | 2009-11-25 | 2010-08-18 | 刘轩 | Stereoscopic mask |
| KR20100121724A (en) * | 2009-05-11 | 2010-11-19 | (주)파인텍 | Dust mask having a united structure for adjusiting length of band |
| KR100996678B1 (en) * | 2009-12-24 | 2010-11-25 | 이상호 | disposable Mask for Yellow Sand |
| US20110315144A1 (en) * | 2010-06-25 | 2011-12-29 | 3M Innovative Properties Company | Respirator that has inward nose region fold with high level conformation |
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| SE313144B (en) * | 1965-12-30 | 1969-08-04 | E Andersson | |
| CA1185500A (en) * | 1981-08-12 | 1985-04-16 | Joseph Z. Zdrok | Disposable respirator |
| TR199700922T1 (en) * | 1995-03-09 | 1998-03-21 | Minnesota Mining & Manufacturing Company | Flat-fold personal respiratory protection devices and processes for their preparation. |
| JP3743751B2 (en) * | 2000-01-21 | 2006-02-08 | サンエムパッケージ 株式会社 | mask |
| JP2006218079A (en) * | 2005-02-10 | 2006-08-24 | Kurashiki Seni Kako Kk | Dust mask |
| US9770058B2 (en) * | 2006-07-17 | 2017-09-26 | 3M Innovative Properties Company | Flat-fold respirator with monocomponent filtration/stiffening monolayer |
| EP2085354B1 (en) * | 2006-09-05 | 2019-02-20 | Panasonic Corporation | Hydrogen generating apparatus and fuel cell system |
| KR100891701B1 (en) * | 2008-09-01 | 2009-04-03 | 장정산업 주식회사 | The four surfaces type dustproof mask |
| JP5280943B2 (en) * | 2009-06-05 | 2013-09-04 | 優 今泉 | Sanitary mask |
| US8640704B2 (en) * | 2009-09-18 | 2014-02-04 | 3M Innovative Properties Company | Flat-fold filtering face-piece respirator having structural weld pattern |
-
2012
- 2012-12-27 US US13/728,008 patent/US20140182601A1/en not_active Abandoned
-
2013
- 2013-12-11 KR KR1020157020225A patent/KR20150097805A/en not_active Application Discontinuation
- 2013-12-11 EP EP13869234.8A patent/EP2938407B1/en not_active Not-in-force
- 2013-12-11 PL PL13869234T patent/PL2938407T3/en unknown
- 2013-12-11 JP JP2015550436A patent/JP6309024B2/en not_active Expired - Fee Related
- 2013-12-11 BR BR112015015164A patent/BR112015015164A2/en not_active IP Right Cessation
- 2013-12-11 ES ES13869234.8T patent/ES2675793T3/en active Active
- 2013-12-11 AU AU2013368273A patent/AU2013368273B2/en not_active Ceased
- 2013-12-11 RU RU2015126460A patent/RU2608809C1/en not_active IP Right Cessation
- 2013-12-11 WO PCT/US2013/074243 patent/WO2014105421A1/en active Application Filing
- 2013-12-11 CN CN201380066093.1A patent/CN104870057B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100154805A1 (en) * | 2008-12-18 | 2010-06-24 | 3M Innovative Properties Company | Flat fold respirator having flanges disposed on the mask body |
| KR20100121724A (en) * | 2009-05-11 | 2010-11-19 | (주)파인텍 | Dust mask having a united structure for adjusiting length of band |
| CN201550642U (en) * | 2009-11-25 | 2010-08-18 | 刘轩 | Stereoscopic mask |
| KR100996678B1 (en) * | 2009-12-24 | 2010-11-25 | 이상호 | disposable Mask for Yellow Sand |
| US20110315144A1 (en) * | 2010-06-25 | 2011-12-29 | 3M Innovative Properties Company | Respirator that has inward nose region fold with high level conformation |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2938407A4 (en) | 2016-11-09 |
| US20140182601A1 (en) | 2014-07-03 |
| KR20150097805A (en) | 2015-08-26 |
| AU2013368273B2 (en) | 2016-05-26 |
| ES2675793T3 (en) | 2018-07-12 |
| WO2014105421A1 (en) | 2014-07-03 |
| JP6309024B2 (en) | 2018-04-11 |
| RU2608809C1 (en) | 2017-01-24 |
| PL2938407T3 (en) | 2018-10-31 |
| AU2013368273A1 (en) | 2015-07-09 |
| EP2938407A1 (en) | 2015-11-04 |
| EP2938407B1 (en) | 2018-04-25 |
| CN104870057B (en) | 2018-03-27 |
| JP2016508191A (en) | 2016-03-17 |
| BR112015015164A2 (en) | 2017-07-11 |
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Granted publication date: 20180327 |