EP2432562B1 - Masque de protection - Google Patents

Masque de protection Download PDF

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Publication number
EP2432562B1
EP2432562B1 EP10711147.8A EP10711147A EP2432562B1 EP 2432562 B1 EP2432562 B1 EP 2432562B1 EP 10711147 A EP10711147 A EP 10711147A EP 2432562 B1 EP2432562 B1 EP 2432562B1
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EP
European Patent Office
Prior art keywords
protective mask
cover
layer
filter
face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10711147.8A
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German (de)
English (en)
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EP2432562A1 (fr
Inventor
Gerard Martin Swenker
Hasso von Blücher
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Bluecher GmbH
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Bluecher GmbH
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Publication date
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Publication of EP2432562A1 publication Critical patent/EP2432562A1/fr
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Publication of EP2432562B1 publication Critical patent/EP2432562B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask

Definitions

  • the present invention relates to a protective mask according to the preamble of claim 1.
  • a protective mask in the sense of the present invention represents, in particular, a respiratory protective device.
  • the proposed protective mask complies with the European standard EN 149: 2001 D.
  • the protective mask is particularly preferably a particle-filtering half mask.
  • a known protective mask as illustrated by way of example in FIG. 3 of EN 149: 2001 D, has a cover for at least partial covering of a face, in particular of the nose and mouth, and a head mount for attaching the protective mask.
  • the cover is usually made of a flexible material that adapts to the face to be covered.
  • the preferably band-like trained headgear usually engages the edge of the cover to hold the protective mask on the face to be covered.
  • a protective mask in the sense of the present invention is preferably used for filtering inhaled air.
  • the protective mask either a filter which is connected or connectable to a Einateanschluß the protective mask or the Abde effect, or a filter material, for example, forms the cover, to filter the inhaled air.
  • the WO 2009/038857 A1 discloses a respirator with a headgear, a mask body and an exhalation valve.
  • the mask body has a support structure including a skeletal molding device and a filter structure.
  • Two head mounts are arranged at the lateral edge of the former.
  • the mask has a facial part formed of rigid plastic and a headgear which engages the face part front and center.
  • the present invention has for its object to provide a protective mask, which allows an improved seal.
  • the present invention is thus a protective mask with a cover for at least partially covering a face and a head mount for attachment of the protective mask, wherein the headgear at least substantially engages the front of the cover, wherein the protective mask has a shaping device which is formed like a skeleton and formed to stiffen the cover and to bias in at least one concave face towards the face, the molding device being integral with the cover or permanently connected to the cover, and wherein the molding device has at least one portion for stiffening or biasing the cover, and wherein the headgear engages the former.
  • a first aspect of the present invention is that the protective mask or cover has a shaping device in order to improve the shape of the cover or its contact with the face, in particular in the edge region of the cover, and thus to allow or ensure better sealing.
  • the shaping device effects an optimized shaping, installation or adaptation, or even permits a shaping of the cover or of a material which at least essentially forms the covering, which in particular is a flat material, base material and / or filter material.
  • the term “seal” in the present invention means the seal between the protective mask or its cover on the one hand and the face to be covered on the other hand against incoming ambient air, in particular during inhalation.
  • the cover is sealingly in a preferably peripheral along the edge bearing area - in particular with a contact portion - on the face to be covered or face.
  • face or “facial area” is to be understood in this case as meaning that it may also include areas of skin adjoining the face, for example in the area of the neck and in particular below the chin, in particular if the cover also extends beyond the area Chin out to the transition to the neck extends, as preferably provided.
  • the shaping device is designed like a skeleton. This allows an optimized, adapted to the face shape shaping and thus an improved seal.
  • the protective mask is formed such that the headgear engages at least substantially exclusively in a region substantially in the center of the cover and / or (only) at the front of the cover, in particular in a region of the cover in front of the nose or mouth when wearing the protective mask.
  • the protective mask or cover in the wearing state quasi central or pressed from the front of the face and not, as usual in the prior art, is pulled by lateral attack on the edge of the cover on the face.
  • a substantially improved sealing can be achieved.
  • the cover has a material storage - for example in the form of a fold, protuberance or the like.
  • a material storage for example in the form of a fold, protuberance or the like.
  • This additional surface material in this area can be a significantly improved seal, especially during Opening and closing of the mouth or in chewing movements or the like can be achieved.
  • the proposed protective mask has a very good protection and / or filtering effect.
  • the total inward leakage consists of three components: face leakage, valve slippage (if a breathing valve is present), and the filter passage.
  • the total inward leakage is hereinafter referred to as GL for short.
  • FIGS. 1 and 2 show a preferred embodiment of a proposed protective mask 1, which is in particular a respiratory protective device, preferably in the sense of EN 149: 2001 D.
  • the protective mask 1 is preferably designed as a half mask, in particular as a particle-filtering half mask according to EN 149: 2001 D.
  • the proposed protective mask 1 is intended in particular for use in the medical, civil or military sector, particularly preferably for ABC use.
  • the protective mask 1 can be used or noted for the prevention of unwanted droplet infections become.
  • the protective mask 1 can also be used for other purposes.
  • the protective mask 1 has a cover 2 for at least partial covering of a face 3, in particular a nose 4 and / or a mouth 5 (dotted in FIG FIGS. 1 and 2 indicated).
  • the protective mask 1 has a head holder 6 for fastening the protective mask 1, in particular on a head 7, as shown schematically in FIG Figures 1 and 2 shown on.
  • the head holder 6 preferably has an in particular at least partially elastic band 8, which can be guided in particular around the head 7.
  • an in particular at least partially elastic band 8 which can be guided in particular around the head 7.
  • the head holder 6 or the band 8 is preferably made of a textile sheet material (woven or knitted fabric). But it can also be made of rubber, foil or other suitable material.
  • the protective mask 1 preferably has a valve 9, which is particularly preferably designed as an exhalation valve or forms such in the illustrated example.
  • the valve 9 is preferably attached to the protective mask 1 (possibly also replaceable) that (only) exhaled air can be discharged through the valve 9.
  • the valve 9 preferably corresponds to the European standard EN 405.
  • the filter is preferably formed in the illustrated example by the cover 2 and a cover 2 in the integrated or a Dekde kung 2 forming filter material. As required, therefore, only areas of the cover 2 or the cover 2 can be formed as a whole filter or for filtering inhaled air or provided with the filter material and formed permeable to air.
  • a separate filter for filtering inhaled air may also be provided.
  • an optionally changeable filter on the protective mask 1 and cover 2 be connected.
  • the filter may also contain a bypass valve or exhalation valve for bypassing a filter medium or filter material of the filter during exhalation in order to reduce the flow resistance during exhalation.
  • the valve 9 or exhalation valve is integrated into the filter.
  • the exhalation valve 9 is maintained, even if a separate filter for filtering inhaled air is provided. This can prevent the filter from getting wet inside.
  • the cover 2 is preformed and / or cut in such a way that it adapts as well as possible to the face 3 - more precisely to the part of the face 3 to be covered or in the contact area. This depends on the structure of the cover 2, in particular on the base material or filter material, from which the cover 2 is preferably made.
  • the cover 2 serves for a planar covering of the face 3 in the desired area and is accordingly flat. In particular, the cover 3 forms a planar structure.
  • the cover 2 is also at least partially sufficiently flexible or adaptable.
  • the protective mask 1 or cover 2 has an in FIGS. 1 and 2 dashed lines indicated forming device 10 to form the cover 2, or to adapt to the face shape (better) and so to improve the seal.
  • the molding device 10 is designed to stiffen the cover 10 - at least in some areas - and / or to bias it towards the face 3 or to press or apply it.
  • the molding device 10 is formed like a skeleton.
  • the molding device 10 has at least one arm portion 11 for biasing, pressing and / or stiffening the cover 2, in particular to the edge of the cover 2, parallel to or along the cover 2 and / or in a critical facial area, particularly preferably in a concave Facial area, extends.
  • the molding device 10 has a plurality of, preferably arm-shaped sections 11 a-c, also referred to below as arm sections, which are also generally designated only by the reference numeral "n" and in particular extend in different directions and / or Anpreß Kunststoffe.
  • arm portion is preferably to be understood very generally, in particular so that flat or web-like or grid-like or other formations or sections are also included.
  • the molding device 10 is in particular designed such that - in the wearing state of the protective mask 1, so with attached protective mask 1 - the cover 2 in certain areas, particularly preferably in concave facial areas and / or in the region of the edge of the cover 2, biased against the face 3 and / or applied to the face 3 sealingly.
  • the sections 11a-e preferably extend into the specific areas and / or into the vicinity of the edge and / or even as far as the edge of the cover 2, as in FIG FIGS. 1 and 2 indicated.
  • the portions 11a-e or parts thereof may also extend along the edge of the cover 2.
  • the cover 2 is - as already mentioned - preferably constructed at least substantially of a surface or base material 12 which is at least partially stiffened or reinforced by the molding device 10 and its section (e) 11 or biased in one direction or in is preformed in a desired manner.
  • Fig. 3 shows a schematic sectional view of an edge region of the cover 2 according to a possible embodiment.
  • the molding device 10 it is possible, in particular, to use such a surface, base or filter material 12 for the cover 2, which allows no or only a poor deformation. Rather, the desired (pre-) shaping is effected by the shaping device 10, so that nevertheless a good seal can be achieved or ensured.
  • the forming device 10 or its section (s) 11 is or are connected to the cover 2 or the base material 12 preferably fixed or non-detachable. In principle, it is possible to integrate the molding device 10 or its section (s) 11 into the cover 2 or the base material 12. It is possible to arrange the molding device 10 or its section (s) 11 on the inside or outside, ie in particular on a flat side, on the cover 2 or on the base or filter material 12.
  • portions 11a extend laterally in directions that extend in the direction of the ears 14 of the face 3 and head 7, respectively, in the wearing state of the protective mask 1 and / or in areas underlying the cheekbones 15 of the face 3 in the wearing state of the protective mask 1 schematically in FIGS. 1 and 2 indicated.
  • These areas below the cheekbones 15 represent concave facial areas in the context of the present invention, in which the molding device 10 preferably ensures a contact of the cover 2 on the face 3 and / or a bias of the cover 2 to the face 3 to a particularly good seal in To achieve the purposes of the present invention.
  • portions 11b extend into regions which lie on both sides next to the nose 4 in the wearing state of the protective mask 1.
  • a better or safer investment and / or bias of Abde effect 2 in the facial areas right and left of the nose 3 is achieved.
  • These facial areas also represent concave facial areas in the sense of the present invention.
  • the two sections 11b preferably extend at least substantially parallel to one another.
  • the molding device 10 or at least a portion 11c extends around the chin 16, in particular towards the neck and / or into an area, more preferably between the chin 16 and mouth 5 and / or under the chin 16 of the face 3 in the wearing state the protective mask 1 is located.
  • this area is in particular a concave face area in the sense of the present invention, where particularly preferred the forming device 10, the concern or pressing the cover 2 on the face 3 or biasing the cover 2 against the face 3 or biasing the Cover 2 against the face 3 ensures or improves.
  • the shaping device 10 preferably has two sections 11 c extending at least substantially parallel to the chin 16 or around the chin 16, which are particularly preferably provided by transverse members or transverse webs are interconnected, here by sections 11d and 11e.
  • a particularly transversely or horizontally extending portion 11d in an area between the mouth 5 and chin 16 (this area also constitutes a concave face area in the sense of the present invention) and / or a particular transversely or horizontally extending portion 11e in an area below of the chin 16, in particular at the transition to the neck, (this area likewise constitutes a concave face area in the sense of the present invention), in order to stiffen the covering 2 and / or to bias it against the face 3 or to hold it.
  • the molding device 10 is formed such that even with opening and closing of the mouth 5 or Kaufaren the mold device 10 or cover 2 can follow the movement and always ensures a secure seal.
  • the molding device 10 is clamp-like or spring-like elastically deformable, in particular to movements, especially when chewing or opening and closing of the mouth 5 to be able to follow.
  • the sections 11 are formed resiliently or elastically deformable.
  • the shaping device 10 preferably has a central portion 17, protrude from the several sections, here the sections 11 a-c.
  • the sections 11 a-c are also constructive solutions.
  • the shaping device 10 or its central section 17 can also carry, form or contain the optional valve 9, in particular the exhalation valve.
  • the protective mask 1 or cover 2 or the molding device 10 is preferably formed such that the central portion 17 substantially in the center of the cover 2 and / or in a region of the cover 2, the front and / or in front of the nose 4 or Mouth 5 is in the wearing state of the protective mask 1, is arranged.
  • the molding device 10 is preferably integrated into the cover 2 or fixedly connected thereto.
  • the molding device 10 is preferably integrated into the cover 2 or fixedly connected thereto.
  • other constructive solutions are possible.
  • the molding device 10 is preferably made by injection molding and / or plastic, possibly from a fibrous plastic.
  • the former 10 is made of polyamide, polyoxymethylene, polyester (PBT), polycarbonate, ABS, polystyrene, polymethylmethacrylate, polypropylene or polyethylene.
  • the molding device 10 may also be made of metal or metal wire, preferably coated with plastic, for example one of said polymers, or of a composite material.
  • the molding device 10 is preferably formed in one piece. However, other constructive solutions are possible.
  • the molding device 10 may also be designed such that it can be folded together.
  • the molding device 10 is unbreakable and / or made of an unbreakable material and / or of a material with particularly good recovery properties, even after a very strong deformation, preferably to assume the original shape again automatically.
  • the protective mask 1 and / or the head holder 6 is or are preferably designed such that the head holder 6 preferably at least substantially exclusively in a region substantially in the middle of the cover 2 and / or front (in the wearing state) on the cover 2, in particular in an area that lies in front of the nose 4 or the mouth 5 in the wearing state of the protective mask 1, attacks.
  • This ensures that the protective mask 1 or cover 2 is practically pressed from the front on the face 3 in the wearing state and not, as is usual in the prior art, starting from an edge of the cover 2 is pulled onto the face 3.
  • the head holder 6 or its band 8 is elastically connected to the insert 10, for example by the use of rubber threads, elastic threads or the like.
  • the head support 6 or its band 8 extends preferably from a front region or the engagement region of the head support 6 obliquely backwards above, over the ears 14 and around the head 7.
  • the head support 6 or its band 8 extends preferably from a front region or the engagement region of the head support 6 obliquely backwards above, over the ears 14 and around the head 7.
  • the cover 2 preferably has a material reservoir 18 - ie an area with additional surface material - on which preferably a fold, protuberance or the like. forms and / or is arranged in an area which is in front of the mouth 5 and / or laterally adjacent to the mouth 5, particularly preferably on cheeks of the face 3, and / or in the region of the lower jaw in the wearing state of the protective mask 1.
  • This material storage 18 or area additional surface material can be achieved that the protective mask 1 or its cover 2 can follow the movements when opening and closing the mouth 5 or chewing movements or the like, while always a good seal in the sense of the present invention is possible.
  • This aspect of the present invention is also independent of the realization of the molding device 10 and / or the preferred attack the headgear 6 front of the cover 2 in the present protective mask 1, but also in other protective masks 1 feasible.
  • the degree of elastic deformability of the molding device 10 in order to follow an opening and closing of the mouth 5 and chewing movements and adapted the dimensioning of the additional material area or material memory 18 to optimally follow the movements to a To avoid unnecessary wrinkling and / or always to ensure a good seal.
  • the protective mask 1 or cover 2 preferably has a contact section 19, in particular in the region of the edge of the cover 2, particularly preferably along the entire edge, as shown in the schematic section in FIG Fig. 3 indicated.
  • the cover 2 is in the wearing state preferably along the entire contact portion 19 and / or in particular only with the contact portion 19 directly on the face 3 sealingly.
  • the abutment portion 19 is formed in particular bead-like or lip-like.
  • the abutment portion 19 is preferably made of a soft and / or skin-friendly material, in particular polyurethane or silicone or another suitable material.
  • Fig. 6 shows a second embodiment of the proposed protective mask 1 in one Fig. 2 comparable view from the side.
  • the region of additional material or the material reservoir 18 preferably extends in the region of the cheeks of the wearer and / or laterally to the ears 14 and / or the front around the mouth 5 and / or below the valve 9 or Central section 17
  • the material reservoir 18 is in particular a (preferably convex) fold or protuberance of the covering 2 forming surface material.
  • the material reservoir 18, starting from the side or the ears 14 towards the front side or to the area of the mouth 5, has increasingly more additional area material and / or most additional area material in the area of the front side or the mouth 5.
  • the preferably fusible fibers can be made into non-wovens by any known processes, such as meltblow, laydown, or the like.
  • the aerosol filter material used preferably meets the requirements of classes P1, P2 or P3 of EN 149: 2001 D.
  • the protective function of the adsorption filter material according to the invention in relation to particles and aerosols is comparable to conventional membrane systems; However, due to the gas permeability, in particular air permeability or permeability of the adsorption filter material according to the invention the wearing comfort during processing to ABC protective suits compared to membrane suits is significantly increased.
  • nonwovens or nonwovens also referred to as nonwovens, in the context of the present invention is used in particular as a term for flexible, porous fabrics which are included in the textile composites used, which are not made by the classical methods of weaving of warp and weft or by stitching, but by entanglement and / or cohesive and / or adhesive bonds of textile fibers.
  • Nonwovens are generally loose materials made from staple fibers or filaments, in particular from synthetic fibers or chemical fibers (eg polypropylene, polyester, viscose, etc.) whose cohesion is generally given by the fibers inherent adhesion.
  • polyesters particularly preferred are polyesters, polyolefins, polyamides, polyacrylonitriles, poly (meth) acrylates and polyvinylidene fluorides (PVDF) and mixtures thereof.
  • PVDF polyvinylidene fluorides
  • the covering layer of the adsorption filter material according to the invention is formed as a textile fabric composed of synthetic fibers (chemical fibers), preferably an air-permeable textile material, preferably a scrim or textile composite, in particular a nonwoven, whereby the synthetic fibers ( Chemical fibers) may preferably be selected from the group of polyamides, polyesters, polyolefins, polyurethanes, polyvinyl and / or polyacrylic, preferably polyolefins (in particular polypropylene) and / or polyesters.
  • the covering layer is formed as a nonwoven consisting of synthetic fibers (chemical fibers), in particular as a polyolefin nonwoven (for example polypropylene nonwoven) or polyester nonwoven.
  • the particle and / or aerosol filter layer is designed such that it has an average deposition rate with respect to particles and / or aerosols with diameters in the range of 0.1 to 0.3 ⁇ m of at least 80% at a flow velocity of 0.1 m / s. , in particular at least 90%, preferably at least 95%.
  • the particle and / or aerosol filter should at an inlet velocity of 0.1 m / s, an average deposition rate against particles and / or aerosols with diameters ⁇ 2 microns, in particular ⁇ 1.5 microns, preferably ⁇ 1.0 microns, of at least 95%, in particular at least 98%, preferably at least 99%.
  • the adsorption layer is fixed to the support layer.
  • the attachment of the adsorption layer to the carrier layer by means of an adhesive wherein the adhesive is advantageously only discontinuously or only punctiform applied to the carrier layer to maintain a good gas permeability, especially air permeability, the carrier layer and in this way the Adsorptionsfiltermaterials total.
  • the adhesive should be applied in an application amount of 10 to 80 g / m 2 , in particular 20 to 60 g / m 2 , preferably 30 to 50 g / m 2 .
  • the optional cover layer is generally equally formed as a textile fabric, preferably an air-permeable textile material, e.g. B. as a woven, knitted, knitted, scrim or fabric composite, in particular a nonwoven.
  • the covering layer has a basis weight of 50 to 300 g / m 2 , in particular 75 to 275 g / m 2 , preferably 100 to 250 g / m 2 , particularly preferably 120 to 250 g / m 2 .
  • the covering layer and / or the carrier layer preferably the carrier layer
  • the covering layer and / or the carrier layer can be provided with biocidal and / or biostatic equipment or equipment, preferably based on a catalytically active component (cf.
  • catalytically active component preferably copper and silver and their ions and / or salts, particularly preferably from the group of Ag, Ag 2 O, Cu, Cu 2 O and CuO and mixtures thereof, are used.
  • the amount of catalytically active component, based on the total layer, can vary in the range of 0.001 to 20 wt .-%, in particular 0.005 to 10 wt .-%, preferably 0.01 to 5 wt .-%, vary.
  • suitable, acted upon by a biostatic or biocidal catalytically active component fabric which can be used in the present invention, are commercially available, for. From the companies Cupron Corporation, New York (USA), Foss Manufacturing Company Inc., Hampton, New Hampshire (USA) or Noble Fiber Technologies, Clarks Summit, Pennsylvania (USA).
  • the aerosol and / or particle filter layer with a biocidal and / or biostatic equipment or equipment preferably be based on a catalytically active component, be provided;
  • the above statements on the biocidal and / or biostatic equipment or equipment of the cover layer and / or the carrier layer apply accordingly (see also the German patent application, which is based on the applicant himself DE 10 2005 056 537 and German utility model application DE 20 2005 018 547 the entire disclosure of which is hereby incorporated by reference).
  • the biocidal or biostatically active catalytically active component can be incorporated or incorporated in particular in the aerosol and / or particle filter layer, in particular in the aerosol and / or particle filter layer forming fibers, threads, yarns, filaments or the like, for. As by spinning, extruding, impregnation, chemical or plasma chemical treatment processes or the like.
  • metals or metal compounds in particular from the group of copper, silver, cadmium, platinum, palladium, rhodium, zinc, mercury, titanium, zirconium and / or aluminum and their ions and / or salts, can be used as the biocidal or biostatically active catalytically active component preferably copper and silver and their ions and / or salts, particularly preferably from the group of Ag, Ag 2 O, Cu, Cu 2 O and CuO and mixtures thereof, be used.
  • the amount of catalytically active component, based on the total layer, can vary in the range of 0.001 to 20 wt .-%, in particular 0.005 to 10 wt .-%, preferably 0.01 to 5 wt .-%, vary.
  • cover layer can be provided with a flame retardant (for example by means of phosphoric ester impregnation). Furthermore, the cover layer can also be antistatic. According to a further embodiment, the cover layer may also be equipped by infrared reflection properties (IR reflection properties). Finally, the cover layer may also be provided with camouflage printing on its side facing the pollutants (that is, on the outside during use), in particular in the production of ABC protective suits.
  • the adsorption filter material may also contain other layers, in particular textile layers. These may be arranged above, below or between the aforementioned layers.
  • the adsorption filter material is permeable to gas, in particular air-permeable and / or water-permeable and / or permeable to water vapor. This results in an excellent wearing comfort when processing into ABC protective suits.
  • the adsorption filter material at a flow resistance of 127 Pa has a gas or air permeability of at least 101 ⁇ m 2 ⁇ s -1 , in particular at least 301 ⁇ m -2 ⁇ s -1 , preferably at least 501 ⁇ m -2 ⁇ s - 1 , more preferably at least 100 1 ⁇ m -2 ⁇ s -1 , most preferably at least 400 1 ⁇ m -2 ⁇ s -1 , and / or up to 10,000 1 ⁇ m 2 ⁇ s -1 .
  • the gas or air permeability of the adsorptive filter material according to the present invention is determined or limited at least essentially by the aerosol and / or particulate filter layer, the gas or air permeability of the adsorption filter material according to the invention substantially corresponds overall to the gas or air permeability of the aerosol and / or particle filter layer.
  • the adsorption filter material should have a water vapor transmission rate of at least 5 l / m 2 per 24 h, in particular at least 10 l / m 2 per 24 h, preferably at least 15 l / m 2 per 24 h, particularly preferably at least 20 l / m 2 per 24 h, very particularly preferably at least 25 l / m 2 per 24 h.
  • the water vapor permeability can be measured according to the so-called "inverted cup method" or according to ASTM E 96 and at 25 ° C.
  • WVTR water vapor transmission rate
  • the adsorption filter material In order to ensure a good protective action against chemical warfare agents, the adsorption filter material generally has a barrier effect against chemical warfare agents, in particular bis [2-chloroethyl] sulfide (synonymously also termed mustard gas, Lost or yellow cross), determined according to method 2.2 of CRDEC-SP. 84010, of at most 4 ⁇ g / cm 2 per 24 h, in particular at most 3.5 ⁇ g / cm 2 per 24 h, preferably at most 3.0 ⁇ g / cm 2 per 24 h, more preferably at most 2.5 ⁇ g / cm 2 per 24 h, up.
  • chemical warfare agents in particular bis [2-chloroethyl] sulfide (synonymously also termed mustard gas, Lost or yellow cross)
  • FIG. 5 shows a schematic sectional view through a preferred layer structure 20 of a filter material, in particular Adsorptionsfiltermaterials 21, which is equipped both with an integrated particle and / or aerosol protection and with a protective function against biological and / or chemical pollutants, especially biological and / or chemical warfare agents , has a multilayer structure 20 with a carrier layer 22, an adsorption layer 23 assigned to the carrier layer 22, preferably fixed to the carrier layer 22, and a cover layer 24 arranged on the side of the adsorption layer 23 facing away from the carrier layer 22.
  • the adsorption filter material 21 is provided with a particle and / or aerosol filter layer 25, preferably a combined particle and aerosol filter layer 25.
  • Such adsorption filter material 21 is the subject of the German patent application DE 10 2006 021 905.8 ,
  • the particle and / or aerosol filter layer 25 is preferably an air-permeable textile fabric formed from fibers with fiber diameters in the range from 10 nm to 5 ⁇ m, preferably 100 nm to 1.1 ⁇ m, preferably with a basis weight of 1 to 75 g / m 2 , in particular 2 to 50 g / m 2 , particularly preferably 5 to 15 g / m 2 formed.
  • the particle and / or aerosol filter layer 25 is generally arranged directly on the adsorption layer 23, in particular fixed on and / or on the adsorption layer 23, preferably laminated thereon.
  • the particle and / or aerosol filter layer 26 is thus thus arranged between the adsorption layer 23 and the cover layer 24, wherein the particle and / or aerosol filter layer 25 is advantageously fixed on and / or on the adsorption layer 23, preferably by means of lamination.
  • the harmful substances to be rendered harmless including aerosols and particles after penetration of the outer cover 24 so first on the particle and / or aerosol filter layer 25, where the relevant pollutant particles and aerosols are rendered harmless, and possibly even chemical and / or biological Pollutant-containing, freed from the particles and aerosols pollutant then finally hits the adsorption layer 23, where the remaining pollutants are then made harmless by adsorption and in the presence of catalysts also by decomposition processes.
  • the particle and / or aerosol filter layer 25 is configured as a scrim or nonwoven, in particular nonwoven, particularly preferably as a nonwoven. It is preferred if the particle and / or aerosol filter layer 25 is produced by electrospinning, meltblow process or a combination of these two processes.
  • An adsorption filter material with integrated particle and aerosol filter layer in the form of a nonwoven fabric is produced.
  • a textile carrier layer having a weight per unit area of about 95 g / m 2 is printed dot matrix-like with about 38 g / m 2 of an adhesive, on which subsequently activated carbon spherules with average diameters of about 0.4 mm in an edition of about 165 g / m 2 are adhered.
  • a particle and aerosol filter layer in the form of a nonwoven consisting of polyamide filaments or fibers with a fiber diameter of about 125 nm is laminated onto the adsorption layer (weight per unit area: about 15 g / m 2 ; 25 ⁇ m, air permeability: approx.
  • the ratio of the average pore size of the nonwoven to the mean diameter of the textile fibers or filaments is about 200.
  • a protective layer serving as an outer layer which is an air-permeable polyolefin nonwoven (PO nonwoven) is subsequently fixed by means of a melt adhesive web (basis weight: about 38 g / m 2 ).
  • PO nonwoven air-permeable polyolefin nonwoven
  • the barrier effect against mustard gas according to method 2.2 of CRDEC-SP-84010 is determined in the context of the so-called convective flow test .
  • a mustard gas-containing air stream is allowed to act on the adsorption filter material and determines the area-related breakthrough rate after 16 hours (80% relative humidity, 32 ° C).
  • the breakthrough amount relative to mustard gas is significantly below 3 g / cm 2, so that the adsorptive filtering material has a good protective effect against chemical warfare agents.
  • the mean efficiency E m according to DIN EN 779 (July 1993) and the average separation efficiency A m according to DIN EN 779 (July 1993) are determined on the adsorption filter material.
  • the average efficiency E m according to DIN EN 779 is approx. 95%
  • the average separation efficiency A m according to DIN EN 779 (July 1993) is approx. 98%.
  • the integral initial transmittance D i is about 3%.
  • the adsorption filter material according to the invention also has a deposition rate above 98% compared to particles and aerosols with diameters ⁇ 1 ⁇ m.
  • the adsorption filter material is subsequently subjected to five washes, and subsequently the aforementioned measurements are repeated. The same results are obtained, d. H.
  • the adsorption filter material according to the invention is resistant to wear and can easily be regenerated by washing without impairing the efficiency.
  • the protective mask 1 according to the invention has a very good protective and / or filtering action.
  • the total inward leakage consists of three components: face leakage, valve slippage (if a breathing valve is present), and the filter passage.
  • the total inward leakage is hereinafter referred to as GL for short.
  • the proposed protective mask 1 can reach or clearly exceed the limits of class FFP3 for GL according to EN 149: 2001 D, in particular according to 7.9.1 of EN 149: 2001 D.
  • the proposed protective mask 1 shows a GL of less than 2%, in particular less than 1%, particularly preferably about 0.5% or less in the average.
  • the aforesaid limit value of GL for the proposed protective mask 1 applies to at least eight out of ten arithmetic mean values for individual protective masks 1, which have each been subjected to five exercises, ie as provided in 7.9.1 of EN 149: 2001 D.
  • the examination of GL is generally carried out in accordance with 8.5 of EN 149: 2001 D.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (15)

  1. Masque de protection (1) avec un recouvrement (2) pour le recouvrement au moins partiel d'un visage (3) et avec un support de tête (6) pour la fixation du masque de protection (1), le support de tête (6) s'emboîtant au globalement à l'avant sur le recouvrement (2),
    caractérisé en ce que
    le masque de protection (1) comprend un dispositif de forme (10) réalisé sous la forme d'un squelette, pour rigidifier le recouvrement (2) et le pré-contraindre dans au moins une partie concave du visage (3), le dispositif de forme (10) étant intégré dans le recouvrement (2) ou étant relié de manière inamovible avec le recouvrement (2) et le dispositif de forme (10) comprenant au moins une portion (11) pour la rigidification ou la précontrainte du recouvrement (2) et en ce que le support de tête (6) s'emboîte avec le dispositif de forme (10).
  2. Masque de protection selon la revendication 1, caractérisé en ce que le dispositif de forme (10) est réalisé d'une seule pièce et/ou déformable élastiquement et/ou constitué d'une matière plastique ou de métal.
  3. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que la portion (11) s'étend vers un bord du recouvrement (2) et/ou le long du recouvrement (2) de surface et/ou en ce que le dispositif de forme (10) comprend plusieurs portions (11) pour la rigidification ou la précontrainte du recouvrement (2), qui s'étendant de préférence dans différentes directions et/ou en ce que les portions (11a) s'étendant latéralement dans des directions qui s'étendant en direction des oreilles (14) du visage (3) ou d'un bouton (7) lorsque le masque de protection (1) est porté, et/ou dans des parties qui se trouvent en dessous des os des joues (15) du visage (3) lorsque le masque de protection (1) est porté.
  4. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que les portions (11b) s'étendent dans des zones qui se trouvent sur les deux côtés du nez (4) lorsque le masque de protection (1) est porté, et/ou en ce qu'une ou plusieurs portions (11 c) s'étendant dans une zone qui se trouve entre le menton (16) et la bouche (5) et/ou sous le mention (16) du visage (3) lorsque le masque de protection (1) est porté.
  5. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le dispositif de forme (10) comprend une portion centrale (17) d'où dépassent plusieurs ou toutes les portions (11), plus particulièrement, la portion centrale (17) se trouvant globalement au centre du recouvrement (2) et/ou dans une zone du recouvrement (2) qui se trouve devant le nez (4) ou la bouche (5) lorsque le masque de protection (1) est porté, ou plus particulièrement le support de tête (6) s'emboîtant sur le masque de protection (1) exclusivement au niveau de la portion centrale (17) ou sur la portion centrale (17).
  6. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le support de tête (6) comprend un ruban (8) de préférence élastique et/ou s'emboîte directement sur le dispositif de forme (1).
  7. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le masque de protection (1) comprend une soupape (9), plus particulièrement seulement pour l'expiration, plus particulièrement la soupape (9) étant reliée ou pouvant être reliée avec le dispositif de forme (10).
  8. Masque de protection selon les revendications 5 et 7, caractérisé en ce que la soupape (9) se trouve au niveau de la partie centrale (17), plus particulièrement est reliée ou peut être reliée avec celle-ci.
  9. Masque de protection selon la revendications 7 ou 8, caractérisé en ce que la soupape (9) se trouve au moins exclusivement au centre du masque de protection (1) et/ou dans une zone du masque de protection (1) qui se trouve devant le nez (4) ou la bouche (5) lorsque le masque de protection (1) est porté.
  10. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le recouvrement (2) comprend une mémoire de matériau (18), de façon à ce que le recouvrement (2) suive une ouverture et une fermeture de la bouche (5).
  11. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le masque de protection (1) est conçu plus particulièrement comme un demi-masque filtrant les particules.
  12. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le recouvrement (2) comprend une portion d'appui (19) au niveau d'un bord du recouvrement (2), plus particulièrement le long de tout le bord, plus particulièrement la portion d'appui (19) étant conçue sous la forme d'un bourrelet ou de lèvres et/ou étant constitué d'un matériau souple et/ou compatible avec la peau, plus particulièrement en polyuréthane ou en silicone.
  13. Masque de protection selon l'une des revendications précédentes, caractérisé en ce que le masque de protection (1) ou le recouvrement (2) est conçu de manière perméable à l'air sur au moins certaines portions et est muni d'un matériau filtrant afin de filtrer l'air qui le traverse.
  14. Masque de protection selon la revendication 13, caractérisé en ce que le matériau filtrant est un matériau filtrant à adsorption (21), de préférence avec une protection contre les particules et/ou les aérosols et/ou avec une fonction de protection contre des substances biologiques et/ou chimiques nocives, plus particulièrement des armes biologiques et/ou chimiques et/ou le matériau filtrant comprend ou forme une couche de filtrage de particules et/ou d'aérosols (25).
  15. Masque de protection selon la revendication 13 ou 14, caractérisé en ce que le matériau filtrant est conçu de façon à être perméable aux gaz, plus particulièrement perméable à l'air et/ou perméable à l'eau et/ou perméable à la vapeur d'eau.
EP10711147.8A 2009-05-19 2010-03-22 Masque de protection Active EP2432562B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009021989 2009-05-19
DE102009036991A DE102009036991B4 (de) 2009-05-19 2009-08-12 Schutzmaske
PCT/EP2010/001776 WO2010133268A1 (fr) 2009-05-19 2010-03-22 Masque de protection

Publications (2)

Publication Number Publication Date
EP2432562A1 EP2432562A1 (fr) 2012-03-28
EP2432562B1 true EP2432562B1 (fr) 2016-01-27

Family

ID=42356979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10711147.8A Active EP2432562B1 (fr) 2009-05-19 2010-03-22 Masque de protection

Country Status (4)

Country Link
EP (1) EP2432562B1 (fr)
CN (1) CN102802733B (fr)
DE (2) DE102009036991B4 (fr)
WO (1) WO2010133268A1 (fr)

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CN102358071A (zh) * 2011-09-20 2012-02-22 苏州金荣华轻纺实业有限公司 一种抗菌纺织品
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DE102012220546A1 (de) * 2012-11-12 2014-05-15 Neenah Gessner Gmbh Flammhemmend ausgerüstetes Gasfiltermaterial mit hoher Staubspeicherfähigkeit
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DE112014006348B4 (de) * 2014-02-10 2021-01-21 Dräger Safety AG & Co. KGaA Atemschutz-Halbmaske
CN104947226A (zh) * 2015-07-13 2015-09-30 山东大学 一种静电纺PAN/POMs复合纤维膜的制备方法
CN105559203B (zh) * 2016-03-11 2018-02-09 环境保护部南京环境科学研究所 一种具有防雾霾功能的口罩及其制备方法
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CN108295396A (zh) * 2018-01-26 2018-07-20 北京欧美中科学技术研究院 一种化学实验防毒面具用的新型滤毒盒
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Also Published As

Publication number Publication date
DE202009010806U1 (de) 2010-07-22
WO2010133268A1 (fr) 2010-11-25
EP2432562A1 (fr) 2012-03-28
DE102009036991B4 (de) 2013-07-25
CN102802733B (zh) 2015-04-15
DE102009036991A1 (de) 2010-11-25
CN102802733A (zh) 2012-11-28

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