WO2022008072A1 - Masque facial - Google Patents

Masque facial Download PDF

Info

Publication number
WO2022008072A1
WO2022008072A1 PCT/EP2020/069556 EP2020069556W WO2022008072A1 WO 2022008072 A1 WO2022008072 A1 WO 2022008072A1 EP 2020069556 W EP2020069556 W EP 2020069556W WO 2022008072 A1 WO2022008072 A1 WO 2022008072A1
Authority
WO
WIPO (PCT)
Prior art keywords
face mask
mask
mask according
cotton
polystyrene
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.)
Ceased
Application number
PCT/EP2020/069556
Other languages
German (de)
English (en)
Inventor
Adam HAJDU
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.)
Audov SRO
Original Assignee
Audov SRO
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 Audov SRO filed Critical Audov SRO
Priority to PCT/EP2020/069556 priority Critical patent/WO2022008072A1/fr
Publication of WO2022008072A1 publication Critical patent/WO2022008072A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A41D13/113—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a vertical fold or weld
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1615—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of natural origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0421—Rendering the filter material hydrophilic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0428—Rendering the filter material hydrophobic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0492—Surface coating material on fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters

Definitions

  • the present invention relates to a face mask for the nose and mouth.
  • a face mask for the nose and mouth is known from WO 2020/049419A1, which is equipped with a filter structure to form a filter function, in which a belt buckle is provided for the filter structure on a user's body.
  • the belt buckle has a filter structure connected to the user's body and openings on both sides of the filter structure.
  • a fastener is also provided which is hinged at one end to the side wall of the opening and grips the belt.
  • the belt is inserted between the side surface of the fastener and a side wall of the opening such that at least a part of an outer surface of the fastener is surrounded and slidably moves in one direction or both directions in the belt buckle selectively according to the surrounding shape of the fastener.
  • the face mask is there made up of several areas welded together, such as the mask, nose, mouth and chin area, some of which are reinforced.
  • This known face mask has a complicated structure and is expensive to manufacture.
  • the object of the invention is to create a face mask that is easier to manufacture and offers long-lasting and high-grade bacterial protection.
  • the fibers of the mask are provided with a polymer coating, in particular with/made of polyethylene styrene, with integrated silver and/or covalently and/or ionically bonded silver ions and/or silane-ammonium compounds, and/or the mask is made of two layers of cotton, preferably (Bio -)-(Gizeh)-Cotton, executed.
  • the antibacterial effect of the polymer can also be produced by silver phosphate glass, silver nitrate or silver chloride on titanium dioxide.
  • the above polymer can also be woven into the fabric of the mask as a separate fiber. It can expediently be provided that the face mask is reusable, in particular washable. This can be due in particular to the material used.
  • the mask is preferably designed in two layers, with an outer layer being able to be treated or finished in the above manner and an inner layer being free of coatings or antibacterial fibers. This can support the high wearing comfort particularly in the case of the cotton preferably used according to the invention.
  • a silver layer can also be vapour-deposited directly on such an outer coating.
  • the thickness of the cotton fiber is less than 3 microns.
  • the material is a tightly woven canvas with a weight of 140 g/m 2 .
  • the figure shows a face mask 1 in plan view.
  • the cloth of the mask is made of two layers.
  • the two layers 2, 3 are made from Egyptian organic Gizeh cotton, the best cotton in the world.
  • the yarn has long, very fine yet durable fibers with a thickness of less than 3 microns. This makes the mask very comfortable for skin contact. It enables comfortable breathing even during several hours of operation.
  • the material is non-irritating and odorless. It is not harmful to health and complies with the STN 80 0055, 2004 standard and with the EP and RAT (EU) No.1907/2006 (REACH) regulations.
  • the silver ions can preferably be complex-stabilized ions. These complexes can preferably be anionic, for example at least one ammonium compound and/or phosphonium compound (or a corresponding functional group).
  • the antibacterial/antiviral coating can be made available free of (nano)particles.
  • the polymer matrix prevents abrasion of particles from the mask.
  • the polymer matrix is preferably firmly connected to the textile of the mask.
  • the silver ion complex is particularly preferably permanently (washfast) connected to the polymer matrix.
  • At least the individual fibers of at least one of the layers are formed with a hydrophobic surface coating of the woven or nonwoven fibers, which is a plasma coating of the fibers.
  • the plasma coating can be applied to the individual fibers, i.e. a layer of fabric, and give the fiber surface a hydrophobic property. A pore structure of the layer is retained here.
  • the hydrophobic property contributes to impermeability to water (min. 5 m water column at 20°C), with a permeability of water vapor and air of at least 5 L/m 2 *s being possible. In particular when sneezing, this can prevent droplets from being distributed into the ambient air and also reduce or prevent the inhalation of aerosols.
  • the pressure of 1 m water column is defined as the pressure that corresponds to the hydrostatic pressure at a water depth of 1 m.
  • the determined air permeability of the hydrophobically coated fleece is based on a differential pressure measurement at 20°C and a relative humidity of 65%.
  • the plasma coating can be a cross-linked plasma polymer and can be applied using the PECVD method (plasma-enhanced chemical vapor deposition).
  • the plasma coating can mentioned complexing agents and/or which have silver ions.
  • the complexing agent and/or the silver ions can also be applied separately to the fabric layer.
  • PECVD Plasma-enhanced chemical vapor deposition
  • a surface coating can be provided that provides a highly crosslinked polymer structure but does not occlude the pores of the fabric.
  • the material from which a plasma coating can be produced can be, for example, a monounsaturated or polyunsaturated ether, an alkene, an alkyne, a fluoroacrylate, a siloxane, a sulfonamide, thioaldehyde, acrylate, sulfone, thioketone or a mixture of the aforementioned substances .
  • the coating of the fleece will then have hydrophobic (oleophilic) or hydrophilic properties.
  • the protective measures according to the invention are designed for repeated long-term use without loss of the antibacterial effect.
  • the material is resistant to stretching even with regular care.
  • the mask is attached to the face with rubber bands 4, 5 or cotton cords.
  • the material is environmentally friendly, has high strength, high resistance to stretching and is washable at temperatures between 60 and 95°C (depending on the type of drape).
  • FIG. 1 shows several views of an easily foldable mask
  • FIG. 2 several views of a mask that can be folded several times
  • FIGS. 1a to 1c show a face mask 10 with a filter element 11 and a holder 12.
  • the holder 12 can be arranged in the form of a preferred elastic loop, in particular in a lateral end region of the filter element 11.
  • the retainer 12 may be arranged for attachment to the filter element by sewing, welding or other known techniques.
  • the filter element is preferably made of cotton, in particular Gizeh cotton.
  • the mask is preferably mirror-symmetrical and can therefore be formed in a simple manner by superimposing two identical or almost identical geometric shapes, with one side of the mirror-symmetrical shapes covering one half of the face or an upper or lower area of the face between preferably the chin and nose. The two forms can be connected by a corresponding seam (stitched seam or welded seam).
  • Such a mask half particularly preferably has a trapezoidal basic shape.
  • the trapezoid can have a convex or concave shape in the area of the base line, ie along the longest side, and/or in the area of the legs.
  • the base line 14 particularly preferably has a convex basic shape, i.e. it is curved outwards opposite the side of the mask half to which the holder 12 is attached, so that the base line describes part of a circular shape, in the interior of which the holder 12 or a part is preferred the mask can be arranged.
  • the two legs 15, 16 of the trapezoid of the half-mask can also be formed differently in terms of geometry, it also being possible for only one of the two legs to have a concave shape.
  • Figures 2a to 2c show a further embodiment of the present invention, according to which the face mask can be provided by a folding technique.
  • a mask geometry that adapts particularly flexibly to the shape of the face can be provided, wherein the folded areas 22 can be designed to adapt to particularly protruding parts of the face, such as the nose, by unfolding the adjust superimposed areas.
  • the holding elements 23 can be arranged along the longitudinal axis of the folding direction for attachment, for example behind the ears.
  • the folding technique according to FIG. 2 allows a particularly extensive adaptation to many different face shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

La présente invention concerne un masque facial pour le nez et la bouche qui protège son utilisateur du développement et de la propagation d'odeurs désagréables, de bactéries, de virus et de moisissures. Le masque est constitué de deux couches. Le matériau est tissé avec du coton Giza et les fibres du coton Giza sont revêtues d'un composé de polystyrène antibactérien.
PCT/EP2020/069556 2020-07-10 2020-07-10 Masque facial Ceased WO2022008072A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/069556 WO2022008072A1 (fr) 2020-07-10 2020-07-10 Masque facial

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2020/069556 WO2022008072A1 (fr) 2020-07-10 2020-07-10 Masque facial

Publications (1)

Publication Number Publication Date
WO2022008072A1 true WO2022008072A1 (fr) 2022-01-13

Family

ID=71738087

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/069556 Ceased WO2022008072A1 (fr) 2020-07-10 2020-07-10 Masque facial

Country Status (1)

Country Link
WO (1) WO2022008072A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020049419A1 (fr) 2018-09-04 2020-03-12 3M Innovative Properties Company Masque
DE202020102119U1 (de) * 2020-04-16 2020-04-22 Karl Küfner GmbH & Co. KG Mund-Nasen-Schutzmaske
DE202020101788U1 (de) * 2020-04-02 2020-05-04 SCi Kontor GmbH Mehrlagige Maske mit reversibel, entfernbarem mehrlagigen Filter für einen wiederkehrenden Gebrauch und Reinigungsmöglichkeit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020049419A1 (fr) 2018-09-04 2020-03-12 3M Innovative Properties Company Masque
DE202020101788U1 (de) * 2020-04-02 2020-05-04 SCi Kontor GmbH Mehrlagige Maske mit reversibel, entfernbarem mehrlagigen Filter für einen wiederkehrenden Gebrauch und Reinigungsmöglichkeit
DE202020102119U1 (de) * 2020-04-16 2020-04-22 Karl Küfner GmbH & Co. KG Mund-Nasen-Schutzmaske

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