EP3925673A1 - Masque de protection et procédé de fabrication d'un masque de protection - Google Patents

Masque de protection et procédé de fabrication d'un masque de protection Download PDF

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Publication number
EP3925673A1
EP3925673A1 EP21179473.0A EP21179473A EP3925673A1 EP 3925673 A1 EP3925673 A1 EP 3925673A1 EP 21179473 A EP21179473 A EP 21179473A EP 3925673 A1 EP3925673 A1 EP 3925673A1
Authority
EP
European Patent Office
Prior art keywords
clamping element
filter element
protective mask
clamping
head
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.)
Pending
Application number
EP21179473.0A
Other languages
German (de)
English (en)
Inventor
Kai Dr. Rinklake
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.)
Skylotec GmbH
Original Assignee
Skylotec GmbH
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
Priority claimed from DE102020115838.6A external-priority patent/DE102020115838A1/de
Application filed by Skylotec GmbH filed Critical Skylotec GmbH
Publication of EP3925673A1 publication Critical patent/EP3925673A1/fr
Pending legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1161—Means for fastening to the user's head
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets

Definitions

  • the invention relates to a protective mask with a filter element for covering a mouth and / or nose part of a person, at least one head fastening strap for fastening the protective mask to the head of the person, and at least one clamping element fastened to the filter element.
  • the invention further relates to a method for producing a protective mask with a filter element for covering a mouth and / or nose part of a person, and at least one head fastening strap for fastening the protective mask to the head of the person.
  • Protective masks are used to protect the face or parts of it and the respiratory organs. As filter masks or fresh air masks, protective masks protect against gases, vapors, liquid mist, coarse and fine dust, pathogens, viruses and / or unpleasant odors.
  • MNS medical mouth and nose protection
  • filtering masks for example according to EN 149, FFP1 mask, FFP2 mask, N95 mask , or FFP3 mask.
  • the aforementioned FFP masks are usually used as part of personal protective equipment as part of occupational safety in areas where there are harmful substances in the air.
  • the aforementioned protective masks are usually attached to the head with a strap, which is either behind the ears or behind the head.
  • Higher quality masks have two flexible head attachment straps. While in simpler masks the straps are elastically welded to the protective mask or fastened by means of metal clips, these can also be made adjustable or openable in high-quality masks will.
  • the protective mask in order to achieve a sufficient filtering effect, it is important that the protective mask can be attached to the head easily and in a defined and sealing manner.
  • Protective masks, the position of which on the head can be adjusted particularly well and easily, require adjustment and positioning components for this purpose and are often difficult to manufacture in a multi-stage manufacturing process and are so expensive to manufacture.
  • the clamping element does not consist of a three-dimensionally constructed and prefabricated part that is supplied during the production of the protective mask, which is usually made separately from plastic injection molding, but from the flat material, as in the prior art , which When the protective mask is manufactured, it is supplied by the meter or on a roll and punched out together with the filter element or cut, for example, by means of a laser.
  • the proposed protective mask requires fewer and cheaper components and materials than protective masks known from the prior art, since the clamping element, as described later, can be manufactured together with the protective mask, in particular by punching, and can preferably be made of the same material as the filter element.
  • the protective mask can be produced fully automatically and more quickly with lower energy consumption, since the clamping element can be fed to a production machine by rotating parts and does not have to be fed manually by linear movements in alternating directions.
  • the head fastening band is preferably designed as a textile, rubber-like, elastic and / or flat band, in particular as a flat band.
  • the filter element preferably has a design and / or extension based on the mouth and / or nose area, on the lateral transverse sides of which the head fastening strap can be provided and / or, when the protective mask is worn, can be oriented towards the ear.
  • a head fastening strap and a corresponding clamping element are preferably provided on each transverse side. Particularly preferably, two head fastening straps are provided on each transverse side and two clamping elements are correspondingly spaced apart. Likewise, three or only one head fastening strap and clamping element can be provided.
  • the head fastening tape is not welded, glued, sewn and / or mechanically connected to the protective mask and / or the filter element.
  • the tab of the clamping element independently clamps the head fastening strap, in particular, which is passed through the tab, wherein the head mounting strap and thus the protective mask can be tightened by pulling on the head mounting strap.
  • one end of the head fastening tape is passed through the clamping element and the filter element, the end being able to be secured against being pulled out, for example by a knot, and / or the head fastening tape being thickened towards the end.
  • An opening is preferably provided in the filter element in the area of the clamping element and / or the tab through which the head fastening strap is passed through. More preferably, the head fastening strap is also passed through the flap.
  • the flap clamps the head fastening tape in such a way that the head fastening tape is clamped against being threaded out 'backwards' towards the ear and / or the head fastening tape is clamped by pulling on the end of the head fastening tape opposite the ear 'forwards' through the tab 'backwards' on the head can be shortened.
  • the tab is preferably pretensioned with spring force in such a way that the tab strives into a closed position in which the tab is flush against the clamping element.
  • the clamping element preferably has a flat and / or rectangular extension.
  • the head fastening tape is preferably guided behind the head of the person and connected to the filter element at its ends on opposite lateral transverse sides.
  • the head fastening band is not designed to be fastened to the ear of the person.
  • the flap preferably opens outwards away from the face.
  • the filter element is preferably designed flat or in any case has a flat and / or flat design in the area of the clamping element.
  • the filter element can have a flat or curved wing on its transverse side, on which the clamping element is provided.
  • the protective mask is preferably designed as a respiratory protection mask, in particular designed as a half mask, preferably for use as a filtering mask (FFP), in particular to prevent the inhalation of harmful particles and to reduce infection with pathogens through the mouth and / or nose, and / or for use in particular as an aerosol-filtering respiratory mask and / or filter particle mask, further in particular to prevent the transmission of pathogens through droplet infection and / or in particular to reduce a germ, in particular viral load, for example in the event of epidemic or pandemic spread of infectious diseases such as COVID-19.
  • FFP filtering mask
  • the protective mask is preferably designed as a particle-filtering half mask in accordance with EN 149: 2001 or EN 149: 2001 + A1: 2009, in particular FFP-1, FFP-2 or FFP-3 mask. Furthermore, the mask can be designed in accordance with EN standards 136, 140, 143, 149, 1827, 12941 and / or 12942.
  • the protective mask can have one or more fabric layers, in particular provided one above the other, preferably glued to one another, connected and / or sewn, as a filter element have, which may include a woven, knitted, knitted, knitted, scrim and / or textile composite, in particular a nonwoven or woven fabric.
  • the filter element can consist of textile fibers and / or have such, whereby natural fibers, preferably wool or cotton, and / or synthetic fibers, preferably synthetic fibers (chemical fibers) such as cellulosic fibers, for example viscose fibers, are used as textile fibers, in particular from the Group of polyesters (PES), polyolefins, such as polyethylene (PE) and polypropylene (PP), polyvinyl chloride (CLF), polyvinylidene chloride (CLF), acetate (CA), triacetate (CTA), polyacrylic (PAN), polyamide (PA), Polyvinyl alcohol (PVAL), polyurethanes, polyvinyl esters, (meth) acrylates and their mixtures.
  • PES polyesters
  • PES polyolefins
  • CLF polyvinyl chloride
  • CLF polyvinylidene chloride
  • CA acetate
  • CTA triacetate
  • PAN polyacrylic
  • PA polyamide
  • PVAL
  • the filter element can have a filtering effect and for this purpose, for example, comprise a nonwoven or nonwoven fabric, in particular a flexible, porous flat structure belonging to textile composites, which is not made by traditional methods of weaving warp and weft or by loop formation but rather by intertwining and / or cohesive and / or adhesive connections are made from textile fibers.
  • Nonwovens are generally loose materials made from staple fibers or filaments, in particular from synthetic fibers or man-made fibers, for example polypropylene, polyester, viscose, etc., whose cohesion is given by the adhesion of the fibers themselves.
  • Individual fibers can have a preferred direction, so-called oriented or cross-ply fleeces, or they can also be non-directional, so-called random fleeces.
  • the mean diameter of the textile fibers of the filter element is preferably at most 100 ⁇ m, in particular at most 30 ⁇ m, preferably at most 20 ⁇ m, preferably at most 10 ⁇ m, particularly preferably at most 5 ⁇ m, very particularly preferably at most 2 ⁇ m.
  • the diameter of the textile fibers of the filter element should be in the range from 0.05 to 50 ⁇ m, in particular 0.1 to 50 ⁇ m, preferably 0.2 to 30 ⁇ m, particularly preferably 0.2 to 20 ⁇ m, very particularly preferably 0, 5 to 10 ⁇ m.
  • the nonwovens can be mechanically consolidated by needling, meshing or by swirling with sharp water jets, so-called spunlaced nonwovens.
  • Nonwovens can also be produced, for example, by spunbonding, meltblow processes and preferably by electrospinning.
  • Adhesively bonded nonwovens are created by gluing the fibers with liquid binders, for example acrylate polymers, SBR / NBA, polyvinyl esters or polyurethane dispersions, or by melting or dissolving so-called binding fibers that are added to the nonwoven during manufacture. With cohesive bonding, the fiber surfaces are loosened by suitable chemicals and connected by pressure or welded at elevated temperature.
  • the filter element is preferably designed with smaller pores than another fabric layer.
  • the shape of the filter element can be adapted to the face of the person to form a so-called CUP mask, or it can be designed to be foldable to form a so-called folding mask.
  • the filter element can have an average pore size or average mesh size - depending on the type of fabric layer - of greater than 1 ⁇ m, in particular greater than 10 ⁇ m, preferably greater than 50 ⁇ m, particularly preferably greater than 100 ⁇ m, or more than 200 ⁇ m. In this way, a good separation rate with regard to particles and aerosols and / or a low breathing resistance can be achieved.
  • the filter element can comprise an electrostatic material, in particular an electret, by means of which small dust particles and drops of liquid can be bound by electrostatic forces.
  • the ratio or the quotient of the mean pore size or mesh size to the mean diameter of the textile fibers of the filter element is particularly preferably in the range from 0.1 to 2,000, in particular 1 to 500, preferably 5 to 350, particularly preferably 10 to 300, very particularly preferably 25 to 250, vary.
  • the ratio or the quotient of the mean pore size or mesh size to the mean diameter of the textile fibers of the filter element should be at most 2,000, in particular at most 500, preferably at most 350, particularly preferably at most 300, very particularly preferably at most 250.
  • the ratio or the quotient of the mean The pore size or mesh size to the mean diameter of the textile fibers of the filter element is at least 0.1, in particular at least 1, preferably at least 5, particularly preferably at least 10, very particularly preferably at least 25, even more preferably at least 40. In this way, particularly efficient separation rates with regard to pathogens and aerosols are achieved.
  • the filter element can have an average efficiency Em according to DIN EN 779 (July 1993) of at least 40%, in particular at least 50%, preferably at least 70%, particularly preferably at least 90%, very particularly preferably at least 95%. Furthermore, for this purpose the filter element can have an average degree of separation Am according to DIN EN 779 (July 1993) of at least 50%, in particular at least 70%, preferably at least 90%, particularly preferably at least 95%, very particularly preferably at least 99%.
  • the filter element is advantageously designed in such a way that it has an average separation rate for particles and / or aerosols with diameters in the range from 1 to 100 ⁇ m of at least 80%, in particular at least 90%, preferably at least 95%, at a flow velocity of 0.1 m / s %, having.
  • the at least one clamping element is designed to be integrated with the filter element, and / or the at least one clamping element is provided within the filter element or the at least one clamping element is provided on the filter element and / or the clamping element is provided on an edge of the filter element .
  • the clamping element is preferably designed in one piece with the filter element.
  • the clamping element can in particular be provided between fabric layers of the filter element within the latter.
  • the at least one clamping element is preferably glued to the filter element within the latter and / or the at least one clamping element is glued onto the filter element.
  • the resilient tab is U-shaped and / or the resilient tab is oriented towards an edge of the protective mask, the filter element completely or at least partially overlaps the at least one clamping element, and / or the clamping element is formed and punched from the flat material , consists and / or cut.
  • the tab can be produced in one production process with the filter element by means of a U-shaped punching. Oriented towards an edge of the protective mask means in particular that the U-shaped transverse side is oriented towards the edge, while the tab on its opposite transverse side can be designed in one piece with a remaining part of the clamping element away from the edge of the protective mask.
  • the cross section of the tab can correspond to the cross section of the head fastening strap or it can be designed to be slightly larger. Completely overlapping means in particular that the clamping element does not protrude beyond the filter element in the direction of the ear when the protective mask is worn.
  • the flat material can be a fabric layer as described above or plastic.
  • the flat material is preferably sheet-like, flat, arched and / or flat and, for example, has a thickness of less than 3, 2, 1 or 0.5 mm.
  • the at least one clamping element is glued, welded and / or sewn to the filter element.
  • the clamping element preferably has a flat and / or flexible design which can be adapted to the shape of the face of the person.
  • the filter element has at least two fabric layers arranged one above the other and the at least one clamping element and at least one of the fabric layers are made from the same material and / or are made in one piece.
  • the filter element is preferably glued to the fabric layers.
  • the clamping element is not designed as a plastic component which is attached to the filter element as an extension thereof.
  • the at least one clamping element is provided on the filter element without protrusion.
  • the clamping element preferably rests flush on the filter element.
  • the clamping element has an identification area.
  • the identification surface is preferably designed as a flat surface and / or is in particular provided laterally next to the filter element, for example offset from it.
  • Simultaneous production step means in particular that the filter element and the clamping element are produced simultaneously, for example the clamping element arranged on the filter element is punched out in a single production step as described below.
  • the resilient tab is U-shaped and / or the resilient tab is oriented towards an edge of the protective mask, the filter element completely or at least partially overlaps the at least one clamping element, and / or the filter element is a flat material .
  • the method comprises the step: Gluing, welding and / or sewing of the at least one clamping element to the filter element.
  • the at least one clamping element is designed to be integrated with the filter element and / or the at least one clamping element is provided within the filter element or the at least one clamping element is provided on the filter element and / or the clamping element is on an edge of the filter element intended.
  • the filter element has at least two fabric layers arranged one above the other and the at least one clamping element and at least one of the fabric layers are made from the same material and / or are made in one piece.
  • the method has the step: Providing the at least one clamping element on the filter element without protrusion.
  • Fig. 1 shows a schematic view of part of a protective mask 1 for covering a mouth and / or nose part of a person with a clamping element 2 according to a preferred embodiment of the invention
  • Fig. 2 shows a schematic view of a clamping element 2 according to a preferred embodiment of the invention
  • Fig. 3 a schematic view of part of a protective mask 1 for covering the mouth and / or nose area of the person with the clamping element 2 according to a further preferred embodiment of the invention.
  • the protective mask 1 has a flat, breath-permeable filter element 3 for covering a mouth and / or nose part of a person, which, not shown in detail, has a plurality of textile fabric layers 4.
  • a first fabric layer 4 is made of a hydrophilic textile material for absorbing moisture from the breath of the person and is used to place it on the mouth and / or nose area of the person.
  • a second, middle fabric layer 4 has a filtering material such as fleece, an electrostatic material, a combination of the aforementioned or comparable materials in order to filter air flowing through the second fabric layer 4.
  • a third fabric layer 4 is made from a hydrophobic material for repelling dirt and / or moisture from the ambient air.
  • the three fabric layers 4 are arranged on top of one another over the entire area and are connected to one another at their edges and along their two-dimensional extent by weaving, gluing, sewing, etc.
  • Fig. 1 On both lateral transverse sides 5 of the filter element 3, in Fig. 1 If only one transverse side 5 of the filter element 3 marked with an arrow is shown, two elastic, textile and flat head fastening straps 6 are provided in each case and at a distance from one another, which are used for Attaching the protective mask 1 to the head can be guided around the head. Furthermore, a clamping element 2 is arranged on each of the two transverse sides 5, which clamping element 2 is completely overlapped by the filter element 3 and in this way does not protrude beyond the filter element 3 in relation to the transverse side 5.
  • the clamping element 2 in Fig. 1 illustrated by a dashed line, has a flat and rectangular extension which is flush with the transverse side 5 and is substantially smaller than the extension of the filter element 3.
  • the clamping element 2 is glued, welded and / or sewn to the filter element 3 and is designed in such a way as to be integrated with the filter element 3.
  • the clamping element 2 can be provided within the filter element 3, namely be arranged between two fabric layers 4.
  • the clamping element 2 can be made of plastic.
  • the clamping element 2 and at least one fabric layer 4 can be designed from the same material, in particular in one piece.
  • a U-shaped resilient tab 7 is inserted into the clamping element 2 by means of punching, illustrated in the figures by dashed lines which, with regard to the U-shaped transverse side, as in FIG Fig. 1 to recognize is oriented towards the transverse side 6 or open.
  • the tab 7 is not punched out on its opposite side oriented away from the transverse side 6 and merges in one piece into the flat extension of the (remaining) clamping element 2. While in Fig. 1 two spaced tabs 7 are inserted in the clamping element 2, the clamping element 2 in Fig. 2 a single tab 7 on.
  • Fig. 3 shows a further embodiment in which the filter element 2 is shaped as a lateral, flat wing which is attached to the filter element 3 as an extension of the latter.
  • a marking surface 9 is provided on the wing, on which the name and type of the protective mask 1 are indicated.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP21179473.0A 2020-06-15 2021-06-15 Masque de protection et procédé de fabrication d'un masque de protection Pending EP3925673A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020003550 2020-06-15
DE102020115838.6A DE102020115838A1 (de) 2020-06-15 2020-06-16 Schutzmaske und Verfahren zum Herstellen einer Schutzmaske

Publications (1)

Publication Number Publication Date
EP3925673A1 true EP3925673A1 (fr) 2021-12-22

Family

ID=76483082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21179473.0A Pending EP3925673A1 (fr) 2020-06-15 2021-06-15 Masque de protection et procédé de fabrication d'un masque de protection

Country Status (1)

Country Link
EP (1) EP3925673A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109770A1 (fr) * 2008-03-06 2009-09-11 Alpha Solway Limited Masque respiratoire amélioré
DE202013011420U1 (de) * 2013-12-20 2014-03-05 Uvex Arbeitsschutz Gmbh Halterung für ein Befestigungsband sowie Atemschutzmaske mit einer solchen Halterung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109770A1 (fr) * 2008-03-06 2009-09-11 Alpha Solway Limited Masque respiratoire amélioré
DE202013011420U1 (de) * 2013-12-20 2014-03-05 Uvex Arbeitsschutz Gmbh Halterung für ein Befestigungsband sowie Atemschutzmaske mit einer solchen Halterung

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