EP1757196B1 - Face mask with tamper evident means - Google Patents

Face mask with tamper evident means Download PDF

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Publication number
EP1757196B1
EP1757196B1 EP06291357A EP06291357A EP1757196B1 EP 1757196 B1 EP1757196 B1 EP 1757196B1 EP 06291357 A EP06291357 A EP 06291357A EP 06291357 A EP06291357 A EP 06291357A EP 1757196 B1 EP1757196 B1 EP 1757196B1
Authority
EP
European Patent Office
Prior art keywords
slot
mask
edges
breathing mask
piece
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.)
Not-in-force
Application number
EP06291357A
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German (de)
French (fr)
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EP1757196A2 (en
EP1757196A3 (en
Inventor
Maria Laetitia Delaeter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maco Pharma SAS
Original Assignee
Maco Pharma SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maco Pharma SAS filed Critical Maco Pharma SAS
Publication of EP1757196A2 publication Critical patent/EP1757196A2/en
Publication of EP1757196A3 publication Critical patent/EP1757196A3/en
Application granted granted Critical
Publication of EP1757196B1 publication Critical patent/EP1757196B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A41D13/1123—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a duckbill configuration

Definitions

  • the invention relates to a respiratory protection mask.
  • the invention applies in particular, but not exclusively, to respiratory protection masks capable of filtering solid or liquid particles suspended in the air, and intended for a single use.
  • Respiratory protection masks are used in particular by medical personnel to avoid not only the contamination of a patient by the projection of aerosols emitted by medical personnel, but also to avoid contamination of medical personnel by inhalation of biological agents present in the air, such as viruses.
  • a particular type of respiratory protection mask is the foldable mask, such as that described in the document GB-A-1556679 .
  • EP-A1-884959 discloses a foldable type of mask whose holding elastic around the head is made of a material whose visual appearance is modified after extension, that is to say after positioning behind the head. This difference in appearance is proof of the use of the mask.
  • the invention therefore proposes a respiratory protection mask comprising a simple and inexpensive inviolability system making it possible to visually ascertain that the mask has not yet been worn, thereby reducing the risk of contamination due to the reuse of the mask.
  • the invention provides a foldable and disposable type of respiratory protection mask, comprising a porous filter protection piece and a fastening element secured to said piece so as to hold said piece in the unfolded position in front of the less the nose and the mouth of a carrier, the part comprising two parts each having at least one edge, the edges being arranged so as to form a slot between them, said part being shaped for, in unfolded position, to open the slot of so as to be able to bring the edges into contact with the wearer's face and, in the folded position, arrange the parts so as to close the slot, said mask comprising a means of tampering with the closing of the slot which is arranged to identify irreversible the first opening of the slot and in that the inviolability means is arranged for, before the first use of the mask, to associate at least a portion of the edges f ormant the slot, and to allow the first opening of the slot by irreversible rupture of the association.
  • FIGS. 1 and 2 schematically represent a perspective view of a respiratory protection mask according to a first and a second embodiment of the invention.
  • FIGS. 3 to 5 schematically represent a sectional view along the axis AA of a respiratory protection mask according to different embodiments of the protective mask and the inviolability means.
  • FIGS. 6 and 7 schematically represent a view from above and from below of a respiratory protection mask according to a particular embodiment of the invention.
  • the figure 8 schematically shows a partial sectional view along the axis AA of a respiratory protection mask comprising a malleable insert.
  • the invention proposes a respiratory protection mask, in particular of the foldable and disposable type.
  • the mask is for example intended to retain solid or liquid particles suspended in the air and in particular viruses or bacteria likely to cause diseases such as influenza.
  • the respiratory protection mask 1 comprises a porous protection piece 2 by filtration and a fastening element 3 secured to said piece so as to maintain said piece in the unfolded position in front of at least the nose and the mouth of a wearer.
  • the porous part 2 comprises two parts each having at least one edge 8, 9, the edges being arranged so as to form a slot between them, said part being shaped to, in unfolded position, open the slot so as to be able to put in contact the edges with the wearer's face and, in the folded position, arrange the parts so as to close the slot.
  • the porous piece in the folded position, is shaped to arrange the parts one on the other so as to close the slot by putting the edges 8,9 in contact.
  • the folded porous piece is shaped to arrange the parts side by side so as to close the slot by putting the edges 8,9 in contact.
  • Such a mask is called foldable type, that is to say that when it is not worn, the mask is substantially flat and is easily stackable.
  • the porous protection piece is formed in particular of two elements 4,5, respectively upper and lower, whose edges are associated with each other, so that they can be applied respectively facing the nose and the chin of the wearer.
  • the combination of elements is made for example by welding such as ultrasonic welding, high frequency laser or heat, sewing, gluing or folding.
  • the upper elements 4 and lower 5 are trapezoidal, three sides of each trapezium being associated in pairs to form the protective part, the large base of each trapezium being free to form the slot.
  • the two trapezoidal elements form a section whose periphery comes into contact with the wearer's face.
  • the elements 4,5 have the same dimensions so as to be perfectly superimposable.
  • the elements are of different size and / or shape (s).
  • the height of the trapezoidal lower member 5 is greater than the height of the trapezoidal upper member 4, so that the mask covers a larger part of the chin.
  • the protective piece is formed of three elements associated with each other, two of the elements being foldable on a central element.
  • Such a type of mask is described in the document EP-A-814871 .
  • the porous part 2 is provided with securing zones 6, 7 on which the fastening element 3 is secured.
  • the securing zones 6, 7 are placed at the lateral ends of the upper and lower parts of the protective part 8 respectively. 2.
  • the securing zones are either outside or inside the mask to arrange the fastening element 3 respectively outside the mask, or, as on the Figures 1 and 2 , inside the mask.
  • the mask 1 comprises a tamper-proof means 10 for closing the slot, which is arranged to irreversibly identify the first opening of the slot.
  • the inviolability means undergoes a permanent change which can be for example structural and / or visual.
  • the tamperproof means 10 is arranged, before the first use of the mask, to associate at least a portion of the edges 8, 9 forming the slot, and to allow the first opening of the slot by irreversible rupture of the association. It is no longer possible to close the slot with the tamper means 10.
  • the inviolability means 10 guarantees the integrity of the mask before use and avoids any contamination due to the reuse of the mask.
  • the tamper-proof means is in particular fixed to the porous piece between the edges 8, 9 or straddling the edges 8, 9 forming the slot.
  • the tamperproof means 10 is provided between the edges 8,9 forming the slot.
  • the tamper-proof means comprises an adhesive material, in particular an adhesive point.
  • the adhesive material is for example an emulsion based on natural rubber, neoprene or acrylic.
  • the adhesive power is adapted to allow the opening of the slot without damaging the edges 8,9. Once peeled off, the adhesive material can not pick up again.
  • the adhesion is sufficient to hold the edges together 8,9.
  • the tamper-proof means consists of a ribbon, for example of rectangular shape, with an adhesive material on at least one of the faces.
  • the tamper-proof means is an adhesive tape 16.
  • the adhesive tape 16 is fixed inside the porous part 2, at the upper edges 8 and lower 9, in particular equidistant from the securing zones 6,7.
  • the ribbon 16 is fixed to the porous piece 2 permanently or removably at the edges 8,9.
  • the ribbon When the ribbon is fixed permanently, it is for example in the form of a ribbon 16 tearable manually or cut with a sharp tool.
  • the ribbon may comprise a primer that allows a simple and precise tearing of the ribbon 16.
  • the tape 16 When the tape 16 is removably attached, it is for example in the form of a peelable tape. Once peeled, the ribbon 16 can not be glued. The mask used is identifiable by the absence of ribbon.
  • the tape whether peelable or tearable, is especially made of vellum, polypropylene, polyethylene or polyvinyl chloride.
  • the adhesive material is for example an emulsion based on acrylic.
  • the adhesive material is for example an emulsion based on natural rubber, neoprene or acrylic.
  • the tamper means is comprised of a tape with an adhesive material on at least a portion of each of the faces of the tape.
  • the ribbon is removably attached to the edges 8, 9 and it is then sufficient for the wearer of the mask to pull the ribbon to use the mask.
  • the tamperproof means 10 is provided straddling the edges 8, 9 forming the slot, as illustrated in FIG. figure 2 .
  • the tamper-proof means 10 comprises an adhesive tape 16 which is fixed on at least a part of the outer surface of each of the edges 8, 9 forming the slot, in particular at an equal distance from the securing zones 6, 7.
  • the ribbon 16 is removably attached to the outer surface of at least one of the edges 8,9 forming the slot.
  • the ribbon 16 is permanently fixed on the outer surface of the edges 8, 9 forming the slot.
  • the use of the mask is performed by breaking the ribbon at the slot to allow the separation of the two edges 8,9 to access the slot.
  • the ribbon 16 is permanently attached to the outer surface of at least one edge 8 forming the slot and removably on the surface of the other edge 9 forming the slot.
  • the visual tamper control will be effective by the peeling of the ribbon 16 at the edge 9.
  • the ribbon 16 is removably attached to the outer surface of the edges 8, 9.
  • the mask is used by peeling the tape at the outer surface of the upper edge 8 and / or lower 9.
  • the adhesive tape 16 holds the fastening element 3 inside the mask as shown in the drawings. Figures 1 or 2 , or outside the mask as shown on figure 3 , before the first opening of the slot.
  • inscriptions on the adhesive tape 16 make it possible to recognize the direction of wearing of the mask.
  • the inscriptions are for example of the form “High” and “Low” or “Up” and “Down”, as illustrated respectively on the Figures 6 and 7 .
  • the mask comprises a protective strip 11 which is provided along at least a portion of an edge 8, 9 of the protective part 2, the fastening element 3 being interposed between the protection part 2 and the protective strip 11 so that the band 11 covers the fastening element 3.
  • the band 11 is secured to the protection part 2 on the securing zones 6, 7 of the fastening element 3.
  • the protective strip 11 When the protective mask 1 is not worn, the protective strip 11 at least partially covers the fastening element 3 so as to protect it.
  • the breaking or peeling of the adhesive tape 16 opens the slot and thus releases the fastening element 3.
  • the adhesive tape 16 is detached from the protective strip 11 and / or the porous part 2. The wearer then takes the fastening element 3 below the protective strip 11 and disposes it on the back of his head.
  • the protective strip 11 is formed of an additional element associated continuously along the protective part 2 near an edge 8 of said piece.
  • the association of the protective strip 11 with the protective part 2 is carried out for example by welding such as ultrasonic welding, high frequency, laser or heat, sewing, gluing or folding.
  • the length of the protective strip 11 and / or the length of the fastening element 3 is substantially equal to that of an edge 8, 9 of the protective part 2.
  • the strip 11 completely covers the fastening element 3, keeping it along the porous part 2.
  • the protective strip 11 is movable between a folded position along said edge and an extended position where it extends beyond said edge so as to extend the protective part 2.
  • the adhesive tape 16 which is fixed on at least a portion of the outer surface of each of the edges 8, 9, holds the protective strip 11 in the folded position before the first opening of the slot.
  • the protective strip 11 When the protective mask 1 is not worn, the protective strip 11 is in the folded position and at least partially covers the fastening element 3 so as to protect it.
  • the protective strip 11 When the mask 1 is worn, the protective strip 11 is in its extended position and is pressed against the wearer's face, ensuring a close contact between the mask and the wearer's face.
  • This protective strip thus makes it possible to reduce as much as possible the possibilities of face leakage.
  • the respiratory protection mask is thus able to ensure a good seal on the face to avoid contamination of the wearer.
  • a malleable insert 12 is provided on the upper member 4 to fit around the nose of the wearer.
  • the insert 12 is in the form of a deformable metal strip, for example an aluminum strip.
  • the insert 12 is arranged, for example by gluing, directly on the protective part 2 facing the nose.
  • the insert 12 is inserted into the mask between two layers constituting the protective part, as shown in FIG. figure 8 . It is then maintained for example by welding points.
  • the insert 12 is disposed on the protective strip 11 of the mask.
  • the protective piece 2 is formed of at least one layer of fibrous polymer material.
  • the protective piece 2 is formed of a stack of several layers of meltblown and / or spunbond nonwoven polymer material, such as a spunbond / meltblown / spunbond (SMS) laminate.
  • SMS spunbond / meltblown / spunbond
  • the nonwoven is especially chemically treated or electrostatically charged in order to increase its particle attraction capacity and improve the filtration efficiency.
  • the protective part 2 comprises the superposition of at least three layers: at least one outer layer 13 comprising a spunbond-type nonwoven polymer material, at least one intermediate layer 14 comprising a meltblown nonwoven polymer material, and at least one inner layer comprising a spunbond nonwoven polymer material.
  • Examples of usable polymeric materials are polypropylene, polyester, expanded polytetrafluoroethylene (PTFE) or polyethylene.
  • the mask may comprise a protective strip, as illustrated in the Figures 4 and 5 .
  • the protective strip 11 is formed of an additional element which is secured to the protection piece.
  • the protective strip 11 is made of a material identical to that of the protective piece or in a different material.
  • the protective strip 11 is formed of at least one layer of spunbond-type fibrous polymer material, in particular non-woven material.
  • the protective strip is made of a material impermeable to liquids and / or gases, such as polyethylene.
  • the protective strip 11 is formed of a fold of at least one inner layer 15 of the protective part 2.
  • the fastening element 3 is advantageously flexible and elastic to be arranged around the head of the wearer. It is in particular in the form of a flange.
  • the length of the fastening element 3 in the unstretched state substantially corresponds to the distance between the two securing zones 6, 7.
  • the fastening element 3 is substantially of the same length as the protective strip 11 so that the strip completely covers the fastening element, when it is in the folded position.
  • the fastening element 3, whether inside or outside the mask 1, and whether or not it is protected by the protective strip 11, is advantageously blocked by the adhesive tape 16.
  • the fastening element 3 comprises a second flange.
  • first and a second flange 3 are secured respectively outside and inside the protective part 2, in particular, as illustrated on the Figures 4, 5 and 8 .

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The mask has a fastening element (3) integrated to a porous protection piece (2) to maintain the piece in unfolded position in front of the nose and mouth of a carrier. The piece has upper and lower elements (4, 5) with edges (8, 9) placed to form a slit. The piece, in unfolded position, opens the slit to bring in contact the edges with the face of the carrier and, in folded position, places the elements on one another to close the slit. A unit (10) e.g. adhesive tape (16), for inviolability of the closing of the slit is arranged to identify in an irreversible manner the opening of the slit.

Description

L'invention concerne un masque de protection respiratoire.The invention relates to a respiratory protection mask.

L'invention s'applique notamment, mais non exclusivement, aux masques de protection respiratoire capables de filtrer des particules solides ou liquides en suspension dans l'air, et destinés à un usage unique.The invention applies in particular, but not exclusively, to respiratory protection masks capable of filtering solid or liquid particles suspended in the air, and intended for a single use.

Les masques de protection respiratoire sont utilisés notamment par le personnel médical pour éviter non seulement la contamination d'un patient par la projection d'aérosols émis par le personnel médical, mais aussi pour éviter la contamination du personnel médical par inhalation d'agents biologiques présents dans l'air, tels que des virus.Respiratory protection masks are used in particular by medical personnel to avoid not only the contamination of a patient by the projection of aerosols emitted by medical personnel, but also to avoid contamination of medical personnel by inhalation of biological agents present in the air, such as viruses.

Un type particulier de masque de protection respiratoire est le masque pliable, tel que celui décrit dans le document GB-A-1556679 .A particular type of respiratory protection mask is the foldable mask, such as that described in the document GB-A-1556679 .

Dans ce document, lorsque le masque n'est pas porté, une face supérieure du masque est superposée sur une face inférieure de sorte à former une structure plane, facilement empilable. Et, lorsque le masque est placé sur le visage d'un porteur, les deux faces forment une coupe dont l'ouverture recouvre le nez et le menton du porteur.In this document, when the mask is not worn, an upper face of the mask is superimposed on a lower face so as to form a flat structure, easily stackable. And when the mask is placed on the face of a wearer, the two faces form a cut whose opening covers the nose and the chin of the wearer.

Ces masques ont une durée d'utilisation limitée afin de conserver une certaine efficacité de filtration et un confort de respiration. Dans certains cas et pour éviter toute contamination, une fois enlevé, le masque ne doit pas être remis sur le visage.These masks have a limited duration of use to maintain a certain filtration efficiency and comfort of breathing. In some cases and to avoid any contamination, once removed, the mask should not be put back on the face.

Pour vérifier que le masque n'a jamais été porté, le document EP-A1-884959 décrit un masque de type pliable dont l'élastique de maintien autour de la tête est constitué d'un matériau dont l'aspect visuel est modifié après extension, c'est-à-dire après positionnement derrière la tête. Cette différence d'aspect constitue une preuve d'utilisation du masque.To verify that the mask has never been worn, the document EP-A1-884959 discloses a foldable type of mask whose holding elastic around the head is made of a material whose visual appearance is modified after extension, that is to say after positioning behind the head. This difference in appearance is proof of the use of the mask.

Cependant, ce système d'inviolabilité nécessite l'emploi de matériau particulier pouvant engendrer un surcoût.
L'invention propose donc un masque de protection respiratoire comprenant un système d'inviolabilité simple et peu coûteux permettant de s'assurer visuellement que le masque n'a pas encore été porté, réduisant ainsi le risque de contamination due à la réutilisation du masque.However, this inviolability system requires the use of particular material that can generate additional cost.
The invention therefore proposes a respiratory protection mask comprising a simple and inexpensive inviolability system making it possible to visually ascertain that the mask has not yet been worn, thereby reducing the risk of contamination due to the reuse of the mask.

A cet effet, l'invention propose un masque de protection respiratoire de type pliable et à usage unique, comprenant une pièce poreuse de protection par filtration et un élément d'attache solidarisé à ladite pièce de sorte à maintenir ladite pièce en position dépliée devant au moins le nez et la bouche d'un porteur, la pièce comprenant deux parties présentant chacune au moins un bord, les bords étant disposés de sorte à former une fente entre eux, ladite pièce étant conformée pour, en position dépliée, ouvrir la fente de sorte à pouvoir mettre en contact les bords avec le visage du porteur et, en position pliée, disposer les parties de sorte à fermer la fente, ledit masque comprenant un moyen d'inviolabilité de la fermeture de la fente qui est agencé pour identifier de façon irréversible la première ouverture de la fente et en ce que le moyen d'inviolabilité est agencé pour, avant la première utilisation du masque, associer au moins une partie des bords formant la fente, et pour permettre la première ouverture de la fente par rupture irréversible de l'association.For this purpose, the invention provides a foldable and disposable type of respiratory protection mask, comprising a porous filter protection piece and a fastening element secured to said piece so as to hold said piece in the unfolded position in front of the less the nose and the mouth of a carrier, the part comprising two parts each having at least one edge, the edges being arranged so as to form a slot between them, said part being shaped for, in unfolded position, to open the slot of so as to be able to bring the edges into contact with the wearer's face and, in the folded position, arrange the parts so as to close the slot, said mask comprising a means of tampering with the closing of the slot which is arranged to identify irreversible the first opening of the slot and in that the inviolability means is arranged for, before the first use of the mask, to associate at least a portion of the edges f ormant the slot, and to allow the first opening of the slot by irreversible rupture of the association.

L'invention sera comprise grâce à la description qui suit en référence aux dessins annexés, illustrant divers modes de réalisation.The invention will be understood from the following description with reference to the accompanying drawings, illustrating various embodiments.

Les figures 1 et 2 représentent de façon schématique une vue en perspective d'un masque de protection respiratoire selon une première et une deuxième réalisations de l'invention.The Figures 1 and 2 schematically represent a perspective view of a respiratory protection mask according to a first and a second embodiment of the invention.

Les figures 3 à 5 représentent de façon schématique une vue en coupe selon l'axe A-A d'un masque de protection respiratoire selon différents modes de réalisation du masque de protection et du moyen d'inviolabilité.The Figures 3 to 5 schematically represent a sectional view along the axis AA of a respiratory protection mask according to different embodiments of the protective mask and the inviolability means.

Les figures 6 et 7 représentent respectivement de façon schématique une vue de dessus et de dessous d'un masque de protection respiratoire selon un mode de réalisation particulier de l'invention.The Figures 6 and 7 schematically represent a view from above and from below of a respiratory protection mask according to a particular embodiment of the invention.

La figure 8 représente de façon schématique une vue en coupe partielle selon l'axe A-A d'un masque de protection respiratoire comprenant un insert malléable.The figure 8 schematically shows a partial sectional view along the axis AA of a respiratory protection mask comprising a malleable insert.

Dans la description qui suit, les termes "supérieur", "inférieur", "intérieur", et "extérieur" sont définis par rapport au sens normal d'utilisation du masque, c'est-à-dire lorsqu'il est placé sur le visage d'un porteur.In the description which follows, the terms "upper", "lower", "inner", and "outer" are defined with respect to the normal direction of use of the mask, that is to say when it is placed on the face of a wearer.

L'invention propose un masque de protection respiratoire, en particulier de type pliable et à usage unique. Le masque est par exemple destiné à retenir les particules solides ou liquides en suspension dans l'air et notamment les virus ou bactéries susceptibles d'engendrer des maladies telles que la grippe.The invention proposes a respiratory protection mask, in particular of the foldable and disposable type. The mask is for example intended to retain solid or liquid particles suspended in the air and in particular viruses or bacteria likely to cause diseases such as influenza.

Selon la figure 1, le masque de protection respiratoire 1 comprend une pièce poreuse de protection 2 par filtration et un élément d'attache 3 solidarisé à ladite pièce de sorte à maintenir ladite pièce en position dépliée devant au moins le nez et la bouche d'un porteur.According to figure 1 , the respiratory protection mask 1 comprises a porous protection piece 2 by filtration and a fastening element 3 secured to said piece so as to maintain said piece in the unfolded position in front of at least the nose and the mouth of a wearer.

La pièce poreuse 2 comprend deux parties présentant chacune au moins un bord 8,9, les bords étant disposés de sorte à former une fente entre eux, ladite pièce étant conformée pour, en position dépliée, ouvrir la fente de sorte à pouvoir mettre en contact les bords avec le visage du porteur et, en position pliée, disposer les parties de sorte à fermer la fente.The porous part 2 comprises two parts each having at least one edge 8, 9, the edges being arranged so as to form a slot between them, said part being shaped to, in unfolded position, open the slot so as to be able to put in contact the edges with the wearer's face and, in the folded position, arrange the parts so as to close the slot.

Notamment, en position pliée, la pièce poreuse est conformée pour disposer les parties l'une sur l'autre de sorte à fermer la fente en mettant les bords 8,9 en contact. En variante, la pièce poreuse pliée est conformée pour disposer les parties côte à côte de sorte à fermer la fente en mettant les bords 8,9 en contact.In particular, in the folded position, the porous piece is shaped to arrange the parts one on the other so as to close the slot by putting the edges 8,9 in contact. Alternatively, the folded porous piece is shaped to arrange the parts side by side so as to close the slot by putting the edges 8,9 in contact.

Un tel masque est dit de type pliable, c'est-à-dire que lorsqu'il n'est pas porté, le masque est sensiblement plat et est facilement empilable.Such a mask is called foldable type, that is to say that when it is not worn, the mask is substantially flat and is easily stackable.

La pièce poreuse de protection est notamment formée de deux éléments 4,5 respectivement supérieur et inférieur, dont des bords sont associés entre eux, de sorte à pouvoir être appliqués respectivement en regard du nez et du menton du porteur.The porous protection piece is formed in particular of two elements 4,5, respectively upper and lower, whose edges are associated with each other, so that they can be applied respectively facing the nose and the chin of the wearer.

L'association des éléments est réalisée par exemple, par soudure telle que soudure ultra-sons, haute fréquence, laser ou chaleur, couture, collage ou pliage.The combination of elements is made for example by welding such as ultrasonic welding, high frequency laser or heat, sewing, gluing or folding.

Comme illustré sur les figures 1 et 2, les éléments supérieur 4 et inférieur 5 sont de forme trapézoïdale, trois côtés de chaque trapèze étant associés deux à deux pour former la pièce de protection, la grande base de chaque trapèze étant libre pour former la fente.As illustrated on Figures 1 and 2 , the upper elements 4 and lower 5 are trapezoidal, three sides of each trapezium being associated in pairs to form the protective part, the large base of each trapezium being free to form the slot.

Lorsque le masque est porté, les deux éléments trapézoïdaux forment une coupe dont la périphérie entre en contact avec le visage du porteur.When the mask is worn, the two trapezoidal elements form a section whose periphery comes into contact with the wearer's face.

En particulier, les éléments 4,5 ont les mêmes dimensions de sorte à être parfaitement superposables.In particular, the elements 4,5 have the same dimensions so as to be perfectly superimposable.

En variante, les éléments sont de dimension et/ou de forme différente(s). Par exemple, la hauteur de l'élément inférieur 5 de forme trapézoïdale est supérieure à la hauteur de l'élément supérieur 4 de forme trapézoïdale, de sorte que le masque couvre une plus grande partie du menton.Alternatively, the elements are of different size and / or shape (s). For example, the height of the trapezoidal lower member 5 is greater than the height of the trapezoidal upper member 4, so that the mask covers a larger part of the chin.

Selon un autre exemple, la pièce de protection est formée de trois éléments associés entre eux, deux des éléments étant repliables sur un élément central. Un tel type de masque est décrit dans le document EP-A-814871 .In another example, the protective piece is formed of three elements associated with each other, two of the elements being foldable on a central element. Such a type of mask is described in the document EP-A-814871 .

La pièce poreuse 2 est pourvue de zones de solidarisation 6,7 sur lesquelles est solidarisé l'élément d'attache 3. Les zones de solidarisation 6,7 sont placées aux extrémités latérales respectivement des bords supérieur 8 et inférieur 9 de la pièce de protection 2.The porous part 2 is provided with securing zones 6, 7 on which the fastening element 3 is secured. The securing zones 6, 7 are placed at the lateral ends of the upper and lower parts of the protective part 8 respectively. 2.

Les zones de solidarisation sont soit à l'extérieur ou soit à l'intérieur du masque pour disposer l'élément d'attache 3 respectivement à l'extérieur du masque, ou, comme sur les figures 1 et 2, à l'intérieur du masque.The securing zones are either outside or inside the mask to arrange the fastening element 3 respectively outside the mask, or, as on the Figures 1 and 2 , inside the mask.

Selon l'invention, le masque 1 comprend un moyen d'inviolabilité 10 de la fermeture de la fente, qui est agencé pour identifier de façon irréversible la première ouverture de la fente.According to the invention, the mask 1 comprises a tamper-proof means 10 for closing the slot, which is arranged to irreversibly identify the first opening of the slot.

Par conséquent, au moment de l'ouverture de la fente, le moyen d'inviolabilité subit une modification permanente qui peut être par exemple structurelle et/ou visuelle.Therefore, at the time of opening of the slot, the inviolability means undergoes a permanent change which can be for example structural and / or visual.

Le moyen d'inviolabilité 10 est agencé, avant la première utilisation du masque, pour associer au moins une partie des bords 8,9 formant la fente, et pour permettre la première ouverture de la fente par rupture irréversible de l'association. Il n'est alors plus possible de refermer la fente avec le moyen d'inviolabilité 10.The tamperproof means 10 is arranged, before the first use of the mask, to associate at least a portion of the edges 8, 9 forming the slot, and to allow the first opening of the slot by irreversible rupture of the association. It is no longer possible to close the slot with the tamper means 10.

Ainsi, le moyen d'inviolabilité 10 garantit l'intégrité du masque avant son utilisation et permet d'éviter toute contamination due à la réutilisation du masque.Thus, the inviolability means 10 guarantees the integrity of the mask before use and avoids any contamination due to the reuse of the mask.

Le moyen d'inviolabilité est notamment fixé à la pièce poreuse entre les bords 8,9 ou à cheval sur les bords 8,9 formant la fente.The tamper-proof means is in particular fixed to the porous piece between the edges 8, 9 or straddling the edges 8, 9 forming the slot.

Selon une première variante de l'invention et comme illustré sur la figure 1, le moyen d'inviolabilité 10 est prévu entre les bords 8,9 formant la fente.According to a first variant of the invention and as illustrated on the figure 1 , the tamperproof means 10 is provided between the edges 8,9 forming the slot.

Dans une réalisation particulière, le moyen d'inviolabilité comprend un matériau adhésif, notamment un point de colle. Le matériau adhésif est par exemple une émulsion à base de caoutchouc naturel, de néoprène ou d'acrylique.In a particular embodiment, the tamper-proof means comprises an adhesive material, in particular an adhesive point. The adhesive material is for example an emulsion based on natural rubber, neoprene or acrylic.

Le pouvoir adhésif est adapté pour permettre l'ouverture de la fente sans abîmer les bords 8,9. Une fois décollé, le matériau adhésif ne peut plus se recoller.The adhesive power is adapted to allow the opening of the slot without damaging the edges 8,9. Once peeled off, the adhesive material can not pick up again.

L'adhérence est suffisante pour maintenir ensemble les bords 8,9.The adhesion is sufficient to hold the edges together 8,9.

Dans une autre réalisation, le moyen d'inviolabilité se compose d'un ruban, par exemple de forme rectangulaire, avec un matériau adhésif sur au moins une des faces. Par exemple le moyen d'inviolabilité est un ruban adhésif 16.In another embodiment, the tamper-proof means consists of a ribbon, for example of rectangular shape, with an adhesive material on at least one of the faces. For example, the tamper-proof means is an adhesive tape 16.

Comme représenté sur la figure 1, le ruban adhésif 16 est fixé à l'intérieur de la pièce poreuse 2, au niveau des bords supérieur 8 et inférieur 9, notamment à égale distance des zones de solidarisation 6,7.As shown on the figure 1 , the adhesive tape 16 is fixed inside the porous part 2, at the upper edges 8 and lower 9, in particular equidistant from the securing zones 6,7.

Le ruban 16 est fixé à la pièce poreuse 2 de façon définitive ou de façon amovible au niveau des bords 8,9.The ribbon 16 is fixed to the porous piece 2 permanently or removably at the edges 8,9.

Lorsque le ruban est fixé de façon définitive, il est par exemple sous forme d'un ruban 16 déchirable manuellement ou découpable à l'aide d'un outil tranchant.When the ribbon is fixed permanently, it is for example in the form of a ribbon 16 tearable manually or cut with a sharp tool.

En outre, le ruban peut comprendre une amorce qui permet une déchirure simple et précise du ruban 16.In addition, the ribbon may comprise a primer that allows a simple and precise tearing of the ribbon 16.

Pour porter le masque, l'utilisateur doit déchirer le ruban 16. La première utilisation est donc visuellement identifiable.To wear the mask, the user must tear the ribbon 16. The first use is therefore visually identifiable.

Lorsque le ruban 16 est fixé de façon amovible, il est par exemple sous forme d'un ruban pelable. Une fois pelé, le ruban 16 ne peut être recollé. Le masque utilisé est identifiable par l'absence de ruban.When the tape 16 is removably attached, it is for example in the form of a peelable tape. Once peeled, the ribbon 16 can not be glued. The mask used is identifiable by the absence of ribbon.

Le ruban, qu'il soit pelable ou déchirable, est notamment réalisé en vélin, polypropylène, polyéthylène ou polychlorure de vinyle.The tape, whether peelable or tearable, is especially made of vellum, polypropylene, polyethylene or polyvinyl chloride.

Lorsque le ruban est fixé de façon définitive, le matériau adhésif est par exemple une émulsion à base d'acrylique.When the tape is permanently attached, the adhesive material is for example an emulsion based on acrylic.

Lorsque le ruban est fixé de façon amovible, le matériau adhésif est par exemple une émulsion à base de caoutchouc naturel, de néoprène ou d'acrylique.When the tape is removably attached, the adhesive material is for example an emulsion based on natural rubber, neoprene or acrylic.

Dans une autre réalisation, le moyen d'inviolabilité se compose d'un ruban avec un matériau adhésif sur au moins une partie de chacune des faces du ruban. Le ruban est dans ce cas fixé de façon amovible aux bords 8,9 et il suffit alors au porteur du masque de tirer le ruban pour utiliser le masque.In another embodiment, the tamper means is comprised of a tape with an adhesive material on at least a portion of each of the faces of the tape. In this case, the ribbon is removably attached to the edges 8, 9 and it is then sufficient for the wearer of the mask to pull the ribbon to use the mask.

Selon une seconde variante de l'invention, le moyen d'inviolabilité 10 est prévu à cheval sur les bords 8,9 formant la fente, comme illustré sur la figure 2.According to a second variant of the invention, the tamperproof means 10 is provided straddling the edges 8, 9 forming the slot, as illustrated in FIG. figure 2 .

Le moyen d'inviolabilité 10 comprend un ruban adhésif 16 qui est fixé sur au moins une partie de la surface extérieure de chacun des bords 8,9 formant la fente, notamment à égale distance des zones de solidarisation 6,7.The tamper-proof means 10 comprises an adhesive tape 16 which is fixed on at least a part of the outer surface of each of the edges 8, 9 forming the slot, in particular at an equal distance from the securing zones 6, 7.

En particulier, le ruban 16 est fixé de façon amovible sur la surface extérieure d'au moins un des bords 8,9 formant la fente.In particular, the ribbon 16 is removably attached to the outer surface of at least one of the edges 8,9 forming the slot.

Dans un premier exemple, le ruban 16 est fixé de façon définitive sur la surface extérieure des bords 8,9 formant la fente. Ainsi l'utilisation du masque s'effectue par la rupture du ruban au niveau de la fente afin de permettre la séparation des deux bords 8,9 pour avoir accès à la fente.In a first example, the ribbon 16 is permanently fixed on the outer surface of the edges 8, 9 forming the slot. Thus the use of the mask is performed by breaking the ribbon at the slot to allow the separation of the two edges 8,9 to access the slot.

Dans un second exemple, le ruban 16 est fixé de façon définitive sur la surface extérieure d'au moins un bord 8 formant la fente et de façon amovible sur la surface de l'autre bord 9 formant la fente. Le contrôle visuel d'inviolabilité sera effectif par le pelage du ruban 16 au niveau du bord 9.In a second example, the ribbon 16 is permanently attached to the outer surface of at least one edge 8 forming the slot and removably on the surface of the other edge 9 forming the slot. The visual tamper control will be effective by the peeling of the ribbon 16 at the edge 9.

Dans un troisième exemple, le ruban 16 est fixé de façon amovible sur la surface extérieure des bords 8,9. Ainsi l'utilisation du masque s'effectue par le pelage du ruban au niveau de la surface extérieure du bord supérieur 8 et/ou inférieur 9.In a third example, the ribbon 16 is removably attached to the outer surface of the edges 8, 9. Thus the mask is used by peeling the tape at the outer surface of the upper edge 8 and / or lower 9.

Dans cette variante, dans laquelle le moyen d'inviolabilité est à cheval sur la fente, le ruban adhésif 16 maintient l'élément 3 d'attache à l'intérieur du masque comme représenté sur les figures 1 ou 2, ou à l'extérieur du masque comme représenté sur figure 3, avant la première ouverture de la fente.In this variant, in which the tamper-proof means is straddling the slot, the adhesive tape 16 holds the fastening element 3 inside the mask as shown in the drawings. Figures 1 or 2 , or outside the mask as shown on figure 3 , before the first opening of the slot.

Par conséquent, lorsque plusieurs masques sont empilés l'un au-dessus de l'autre, les éléments d'attache des différents masques retenus par le ruban ne s'entremêlent pas. Et, lorsqu'un masque doit être sorti de la pile, il n'entraîne pas avec lui d'autres masques.Consequently, when several masks are stacked one above the other, the fastening elements of the different masks retained by the ribbon do not intermingle. And when a mask has to be removed from the stack, he does not bring other masks with him.

En outre, pour faciliter l'utilisation du masque, des inscriptions sur le ruban adhésif 16 permettent de reconnaître le sens de port du masque. Les inscriptions sont par exemple de la forme « Haut » et « Bas » ou « Up » et « Down », comme illustré respectivement sur les figures 6 et 7.In addition, to facilitate the use of the mask, inscriptions on the adhesive tape 16 make it possible to recognize the direction of wearing of the mask. The inscriptions are for example of the form "High" and "Low" or "Up" and "Down", as illustrated respectively on the Figures 6 and 7 .

En relation avec les figures 4, 5 et 8 et selon une réalisation particulière du masque, le masque comprend une bande protectrice 11 qui est prévue le long d'au moins une partie d'un bord 8,9 de la pièce de protection 2, l'élément d'attache 3 étant interposé entre la pièce de protection 2 et la bande protectrice 11 de sorte à ce que la bande 11 recouvre l'élément d'attache 3.In relation to Figures 4, 5 and 8 and in a particular embodiment of the mask, the mask comprises a protective strip 11 which is provided along at least a portion of an edge 8, 9 of the protective part 2, the fastening element 3 being interposed between the protection part 2 and the protective strip 11 so that the band 11 covers the fastening element 3.

Notamment, la bande 11 est solidarisée à la pièce de protection 2 sur les zones de solidarisation 6,7 de l'élément d'attache 3.In particular, the band 11 is secured to the protection part 2 on the securing zones 6, 7 of the fastening element 3.

Lorsque le masque de protection 1 n'est pas porté, la bande protectrice 11 recouvre au moins partiellement l'élément d'attache 3 de sorte à le protéger.When the protective mask 1 is not worn, the protective strip 11 at least partially covers the fastening element 3 so as to protect it.

Le ruban adhésif 16, prévu à cheval sur la fente, recouvre au moins partiellement la bande protectrice 11. Notamment il s'étend au-delà de la bande protectrice 11 et se fixe sur la pièce poreuse 2.The adhesive tape 16, straddling the slot, at least partially covers the protective strip 11. In particular, it extends beyond the protective strip 11 and is fixed on the porous piece 2.

Lorsque le masque 1 est porté, la rupture ou le pelage du ruban adhésif 16, selon le cas, permet d'ouvrir la fente et libère ainsi l'élément d'attache 3.When the mask 1 is worn, the breaking or peeling of the adhesive tape 16, as the case may be, opens the slot and thus releases the fastening element 3.

S'il est amovible, le ruban adhésif 16 est désolidarisé de la bande protectrice 11 et/ou de la pièce poreuse 2. Le porteur vient alors prendre l'élément d'attache 3 en dessous de la bande protectrice 11 et le dispose sur l'arrière de sa tête.If it is removable, the adhesive tape 16 is detached from the protective strip 11 and / or the porous part 2. The wearer then takes the fastening element 3 below the protective strip 11 and disposes it on the back of his head.

Selon un mode de réalisation de la bande protectrice et comme illustré sur la figure 4, la bande protectrice 11 est formée d'un élément supplémentaire associé de façon continue le long de la pièce de protection 2 à proximité d'un bord 8 de ladite pièce.According to one embodiment of the protective strip and as illustrated on the figure 4 , the protective strip 11 is formed of an additional element associated continuously along the protective part 2 near an edge 8 of said piece.

L'association de la bande protectrice 11 avec la pièce de protection 2 est réalisée par exemple par soudure telle que soudure ultra-sons, haute fréquence, laser ou chaleur, couture, collage ou pliage.The association of the protective strip 11 with the protective part 2 is carried out for example by welding such as ultrasonic welding, high frequency, laser or heat, sewing, gluing or folding.

Avantageusement, la longueur de la bande protectrice 11 et/ou la longueur de l'élément d'attache 3 est sensiblement égale à celle d'un bord 8,9 de la pièce de protection 2.Advantageously, the length of the protective strip 11 and / or the length of the fastening element 3 is substantially equal to that of an edge 8, 9 of the protective part 2.

Lorsque la bande protectrice 11 et l'élément d'attache 3 ont la même longueur, la bande 11 recouvre entièrement l'élément d'attache 3, le maintenant le long de la pièce poreuse 2.When the protective strip 11 and the fastening element 3 have the same length, the strip 11 completely covers the fastening element 3, keeping it along the porous part 2.

Ainsi, lorsque plusieurs masques sont empilés l'un au-dessus de l'autre, les éléments d'attache des différents masques disposés en dessous des bandes protectrices ne s'entremêlent pas.Thus, when several masks are stacked one above the other, the fastening elements of the different masks arranged below the protective strips do not intermingle.

Selon un second mode de réalisation de la bande de protection et comme illustré sur la figure 5, la bande protectrice 11 est déplaçable entre une position repliée le long dudit bord et une position déployée où elle s'étend au-delà dudit bord de sorte à prolonger la pièce de protection 2.According to a second embodiment of the protective strip and as illustrated in the figure 5 , the protective strip 11 is movable between a folded position along said edge and an extended position where it extends beyond said edge so as to extend the protective part 2.

Comme illustré sur les figures 4 ou 5, le ruban adhésif 16, qui est fixé sur au moins une partie de la surface extérieure de chacun des bords 8,9, maintient la bande protectrice 11 en position repliée avant la première ouverture de la fente.As illustrated on Figures 4 or 5 , the adhesive tape 16, which is fixed on at least a portion of the outer surface of each of the edges 8, 9, holds the protective strip 11 in the folded position before the first opening of the slot.

Lorsque le masque de protection 1 n'est pas porté, la bande protectrice 11 est en position repliée et recouvre au moins partiellement l'élément d'attache 3 de sorte à le protéger.When the protective mask 1 is not worn, the protective strip 11 is in the folded position and at least partially covers the fastening element 3 so as to protect it.

Lorsque le masque 1 est porté, la bande protectrice 11 se trouve dans sa position déployée et est plaquée contre le visage du porteur, assurant un contact étroit entre le masque et le visage du porteur.When the mask 1 is worn, the protective strip 11 is in its extended position and is pressed against the wearer's face, ensuring a close contact between the mask and the wearer's face.

La présence de cette bande protectrice permet donc de réduire au maximum les possibilités de fuites au visage. Le masque de protection respiratoire est ainsi capable d'assurer une bonne étanchéité au niveau du visage afin d'éviter la contamination du porteur.The presence of this protective strip thus makes it possible to reduce as much as possible the possibilities of face leakage. The respiratory protection mask is thus able to ensure a good seal on the face to avoid contamination of the wearer.

Selon les figures 6 ou 8 et pour accroître encore l'étanchéité au niveau du nez du porteur, un insert malléable 12 est prévu sur l'élément supérieur 4 pour s'adapter autour du nez du porteur.According to Figures 6 or 8 and to further increase the seal at the nose of the wearer, a malleable insert 12 is provided on the upper member 4 to fit around the nose of the wearer.

L'insert 12 se présente sous la forme d'une bande de métal déformable, par exemple une barrette en aluminium.The insert 12 is in the form of a deformable metal strip, for example an aluminum strip.

L'insert 12 est disposé, par exemple par collage, directement sur la pièce de protection 2 en regard du nez.The insert 12 is arranged, for example by gluing, directly on the protective part 2 facing the nose.

En variante, l'insert 12 est inséré dans le masque entre deux couches constitutives de la pièce de protection, comme illustré sur la figure 8. Il est alors maintenu par exemple par des points de soudure.Alternatively, the insert 12 is inserted into the mask between two layers constituting the protective part, as shown in FIG. figure 8 . It is then maintained for example by welding points.

En autre variante, l'insert 12 est disposé sur la bande protectrice 11 du masque.In another variant, the insert 12 is disposed on the protective strip 11 of the mask.

Le choix du matériau constitutif de la pièce de protection et de ses caractéristiques telles que la perméabilité à l'air, la porosité, la densité ou l'épaisseur, dépend de l'utilisation finale du masque.The choice of the material constituting the protective part and its characteristics such as air permeability, porosity, density or thickness, depends on the final use of the mask.

Selon une réalisation particulière, la pièce de protection 2 est formée d'au moins une couche de matériau polymère fibreux.According to a particular embodiment, the protective piece 2 is formed of at least one layer of fibrous polymer material.

En particulier, la pièce de protection 2 est formée d'un empilement de plusieurs couches de matériau polymère non-tissé de type meltblown et/ou spunbond, tel qu'un laminé spunbond/meltblown/spunbond (SMS). Le non-tissé est notamment traité chimiquement ou chargé électrostatiquement afin d'augmenter sa capacité d'attraction des particules et d'améliorer l'efficacité de filtration.In particular, the protective piece 2 is formed of a stack of several layers of meltblown and / or spunbond nonwoven polymer material, such as a spunbond / meltblown / spunbond (SMS) laminate. The nonwoven is especially chemically treated or electrostatically charged in order to increase its particle attraction capacity and improve the filtration efficiency.

Par exemple et comme illustré sur les figures 3 à 5 et 8, la pièce de protection 2 comprend la superposition d'au moins trois couches : au moins une couche extérieure 13 comprenant un matériau polymère non-tissé de type spunbond, au moins une couche intermédiaire 14 comprenant un matériau polymère non-tissé de type meltblown, et au moins une couche intérieure 15 comprenant un matériau polymère non-tissé de type spunbond.For example and as illustrated on Figures 3 to 5 and 8 the protective part 2 comprises the superposition of at least three layers: at least one outer layer 13 comprising a spunbond-type nonwoven polymer material, at least one intermediate layer 14 comprising a meltblown nonwoven polymer material, and at least one inner layer comprising a spunbond nonwoven polymer material.

Des exemples de matériaux polymères utilisables sont le polypropylène, le polyester, le polytétrafluoroéthylène expansé (PTFE) ou le polyéthylène.Examples of usable polymeric materials are polypropylene, polyester, expanded polytetrafluoroethylene (PTFE) or polyethylene.

Comme décrit ci-dessus, le masque peut comprendre une bande protectrice, comme illustré sur les figures 4 et 5.As described above, the mask may comprise a protective strip, as illustrated in the Figures 4 and 5 .

Selon le premier mode représenté sur la figure 4, la bande protectrice 11 est formée d'un élément supplémentaire qui est solidarisé à la pièce de protection.According to the first mode represented on the figure 4 , the protective strip 11 is formed of an additional element which is secured to the protection piece.

Dans ce cas, la bande protectrice 11 est réalisée dans un matériau identique à celui de la pièce de protection ou dans un matériau différent.In this case, the protective strip 11 is made of a material identical to that of the protective piece or in a different material.

Par exemple, la bande protectrice 11 est formée d'au moins une couche de matériau polymère fibreux notamment non-tissé de type spunbond.For example, the protective strip 11 is formed of at least one layer of spunbond-type fibrous polymer material, in particular non-woven material.

Selon un autre exemple, la bande protectrice est réalisée dans un matériau imperméable aux liquides et/ou aux gaz, tel que le polyéthylène.In another example, the protective strip is made of a material impermeable to liquids and / or gases, such as polyethylene.

Selon le deuxième mode, illustré sur la figure 5, la bande protectrice 11 est formée d'un repli d'au moins une couche intérieure 15 de la pièce de protection 2.In the second mode, illustrated on the figure 5 , the protective strip 11 is formed of a fold of at least one inner layer 15 of the protective part 2.

L'élément d'attache 3 est avantageusement souple et élastique pour pouvoir être disposé autour de la tête du porteur. Il est notamment sous la forme d'une bride.The fastening element 3 is advantageously flexible and elastic to be arranged around the head of the wearer. It is in particular in the form of a flange.

La longueur de l'élément d'attache 3 à l'état non étiré correspond sensiblement à la distance entre les deux zones de solidarisation 6,7.The length of the fastening element 3 in the unstretched state substantially corresponds to the distance between the two securing zones 6, 7.

Selon un mode de réalisation, lorsque le masque 1 comprend une bande protectrice 11, l'élément d'attache 3 est sensiblement de la même longueur que la bande protectrice 11 de sorte que la bande recouvre entièrement l'élément d'attache, lorsqu'elle est en position repliée.According to one embodiment, when the mask 1 comprises a protective strip 11, the fastening element 3 is substantially of the same length as the protective strip 11 so that the strip completely covers the fastening element, when it is in the folded position.

L'élément d'attache 3, qu'il se trouve à l'intérieur ou à l'extérieur du masque 1, et qu'il soit protégé ou non par la bande protectrice 11, est avantageusement bloqué par le ruban adhésif 16.The fastening element 3, whether inside or outside the mask 1, and whether or not it is protected by the protective strip 11, is advantageously blocked by the adhesive tape 16.

Selon un mode de réalisation, l'élément d'attache 3 comprend une deuxième bride.According to one embodiment, the fastening element 3 comprises a second flange.

Par exemple, les extrémités d'une première et d'une seconde brides 3 sont solidarisées respectivement à l'extérieur et à l'intérieur de la pièce de protection 2, notamment, comme illustré sur les figures 4, 5 et 8.For example, the ends of a first and a second flange 3 are secured respectively outside and inside the protective part 2, in particular, as illustrated on the Figures 4, 5 and 8 .

Claims (14)

  1. A breathing mask (1) of the foldable and non-re-usable type, including a filtration protection porous piece (2) and a tie element (3) made integral with said piece so as to hold said piece in an unfolded position in front of at least a wearer's nose and mouth, with the piece including two parts, each having at least one edge (8, 9), with the edges being positioned so as to form a slot therebetween, said piece being configured in order to, when in the unfolded position, open the slot so as to be able to have the edges (8, 9) contact the wearer's face, and, in the folded position, position the parts so as to close the slot, with said mask being characterized in that it includes a tamper evident means (10) on the slot, which is arranged so as to irreversibly identify the first opening of the slot and in that the tamper evident means (10) is so arranged, prior to the first utilization of the mask, as to associate at least a part of the edges (8, 9) forming the slot, and to enable the first opening of the slot by irreversibly braking the association.
  2. A breathing mask (1) according to claim 1, characterized in that the porous piece (2) includes two respectively upper and lower elements (4, 5), edges of which are associated together.
  3. A breathing mask (1) according to claim 2, characterized in that the elements have a trapezoidal shape, with three sides of each trapeze being associated two by two to build the protective piece (2), and the large base of each trapeze being free to form the slot.
  4. A breathing mask (1) according to any one of claims 1 to 3, characterized in that the tamper evident means (10) is provided between the edges (8, 9) forming the slot.
  5. A breathing mask (1) according to claim 4, characterized in that the tamper evident means (10) includes an adhesive material.
  6. A breathing mask (1) according to any one of claims 1 to 3, characterized in that the tamper evident means (10) is saddle-mounted on the edges (8, 9) forming the slot.
  7. A breathing mask (1) according to claim 6, characterized in that the tamper evident means (10) includes an adhesive tape (16) which is fixed on at least a part of the outer surface of each one of the edges (8, 9).
  8. A breathing mask (1) according to claim 7, characterized in that the tape (16) is removably fixed on the outer surface of at least one of the edges (8, 9).
  9. A breathing mask (1) according to claim 7 or 8, characterized in that the tape (16) is permanently fixed on the outer surface of at least one of the edges (8, 9).
  10. A breathing mask (1) according to any one of claims 7 to 9, characterized in that the tape (16) can be torn.
  11. A breathing mask (1) according to any one of claims 1 to 10, characterized in that it includes a protective strip (11) which is provided along at least a part of one edge (8, 9) forming the slot, with said tie element (3) being interposed between the protective piece (2) and the protective strip (11) so that the strip (11) covers the tie element (3).
  12. A breathing mask (1) according to claim 11, characterized in that the protective strip (11) is movable between a folded position along said edge (8, 9) and an unfolded position where it extends beyond said edge (8, 9) so as to extend the protective piece (2).
  13. A breathing mask (1) according to claim 12 when it depends on claim 7, characterized in that the adhesive tape (16) holds the protective strip (11) in a folded position prior to the first opening of the slot.
  14. A breathing mask (1) according to any one of claims 1 to 13 when it depends on claim 7, characterized in that the adhesive tape (16) holds the tie element (3) on the outside of the mask prior to the first opening of the slot.
EP06291357A 2005-08-26 2006-08-25 Face mask with tamper evident means Not-in-force EP1757196B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0508785A FR2889916B1 (en) 2005-08-26 2005-08-26 RESPIRATORY PROTECTION MASK COMPRISING A MEANS OF INVIOLABILITY

Publications (3)

Publication Number Publication Date
EP1757196A2 EP1757196A2 (en) 2007-02-28
EP1757196A3 EP1757196A3 (en) 2008-10-15
EP1757196B1 true EP1757196B1 (en) 2010-12-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06291357A Not-in-force EP1757196B1 (en) 2005-08-26 2006-08-25 Face mask with tamper evident means

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EP (1) EP1757196B1 (en)
AT (1) ATE491355T1 (en)
DE (1) DE602006018836D1 (en)
FR (1) FR2889916B1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9770611B2 (en) 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
US20080271739A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free respirator that has concave portions on opposing sides of mask top section
US8881729B2 (en) * 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
BR112016000667B1 (en) 2013-07-15 2021-11-03 3M Innovative Properties Company RESPIRATOR COMPRISING A HARNESS, A MASK BODY AND AN EXhalation VALVE
GB201508114D0 (en) * 2015-05-12 2015-06-24 3M Innovative Properties Co Respirator tab
FR3113456A1 (en) 2020-08-20 2022-02-25 Ndira Engineering Health protection facial device
CN112006351B (en) * 2020-09-10 2022-07-08 上海理工大学 Folding mask structure with packaging and summer mask with cooling function
CN113550081B (en) * 2021-07-20 2022-04-29 深圳市那尼科技有限公司 Production device and production method for flour pocket
CN113584738A (en) * 2021-08-09 2021-11-02 深圳市那尼科技有限公司 Production device and production method for mask

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Publication number Priority date Publication date Assignee Title
GB1556679A (en) * 1976-06-16 1979-11-28 Johnson & Johnson Face mask
FR2523085B1 (en) * 1982-03-10 1985-08-16 Elopak France CARTON CONTAINER FOR HOUSEHOLD PRODUCTS, PARTICULARLY FOR FOOD PRODUCTS WITH SEALING DEVICE
CA2213332C (en) 1995-03-09 2008-05-13 Minnesota Mining And Manufacturing Company Flat-folded personal respiratory protection devices and processes for preparing same
US5724677A (en) * 1996-03-08 1998-03-10 Minnesota Mining And Manufacturing Company Multi-part headband and respirator mask assembly and process for making same
ATE325410T1 (en) * 1999-05-27 2006-06-15 Arca Etichette Spa ORIGINALITY CLASP
JP3295413B2 (en) * 2000-01-21 2002-06-24 サンエム・パッケージ株式会社 mask

Also Published As

Publication number Publication date
EP1757196A2 (en) 2007-02-28
ATE491355T1 (en) 2011-01-15
FR2889916A1 (en) 2007-03-02
EP1757196A3 (en) 2008-10-15
DE602006018836D1 (en) 2011-01-27
FR2889916B1 (en) 2007-11-02

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