WO2021224251A1 - Masque sanitaire et procédé de production d'un masque sanitaire - Google Patents

Masque sanitaire et procédé de production d'un masque sanitaire Download PDF

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Publication number
WO2021224251A1
WO2021224251A1 PCT/EP2021/061720 EP2021061720W WO2021224251A1 WO 2021224251 A1 WO2021224251 A1 WO 2021224251A1 EP 2021061720 W EP2021061720 W EP 2021061720W WO 2021224251 A1 WO2021224251 A1 WO 2021224251A1
Authority
WO
WIPO (PCT)
Prior art keywords
knitted tube
hygiene mask
hygiene
mask
wearer
Prior art date
Application number
PCT/EP2021/061720
Other languages
German (de)
English (en)
Inventor
Angela Langer
Alexandra LANGER
Lars Zenz
Original Assignee
Falke Kgaa
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 Falke Kgaa filed Critical Falke Kgaa
Priority to EP21723718.9A priority Critical patent/EP4146855A1/fr
Publication of WO2021224251A1 publication Critical patent/WO2021224251A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • 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
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2500/00—Materials for garments
    • A41D2500/10—Knitted
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/021—Moisture-responsive characteristics hydrophobic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/022—Moisture-responsive characteristics hydrophylic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00—Wearing apparel
    • D10B2501/04—Outerwear; Protective garments
    • D10B2501/042—Headwear
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2509/00—Medical; Hygiene

Definitions

  • the present invention relates to a hygiene mask which comprises a base body which, when worn, at least partially covers a mouth area and a nose area of a wearer of the hygiene mask.
  • Masks of this type are used to filter the breathing air expelled by the wearer of the hygienic mask and / or the air inhaled by the wearer of the hygienic mask in order to prevent harmful particles originating from the wearer from entering the environment and / or harmful particles the environment in the mouth or nose of the wearer.
  • the harmful particles can, for example, be pathogens such as bacteria, viruses or other microbial units, or also inorganic particles, for example dust particles.
  • the present invention is based on the object of creating a hygiene mask of the type mentioned at the beginning, which is easy to manufacture and handle and preferably has a good filter effect.
  • Such knitted tubes can be produced quickly and easily by machine and with a mesh size that varies over a wide range. By selecting a small mesh size, a considerable filter effect can already be achieved, in particular against the passage of liquid droplets, such as those expelled by the wearer when coughing or sneezing or that hit the hygiene mask from the environment. This filter effect can be further improved by arranging a filter material in the interior of the knitted tube.
  • the knitted tube Since the knitted tube is closed in a ring along its circumference, a multilayered structure is automatically obtained by flattening the knitted tube, which improves the filter effect of the hygiene mask.
  • the number of layers of the base body of the hygiene mask is increased in that the knitted tube preferably comprises an inner layer facing the interior of the knitted tube and an outer layer facing away from the interior.
  • the base body comprising the knitted tube is then inevitably made of at least four layers because it has a carrier area of the outer layer of the knitted tube facing the wearer when the hygiene mask is worn, a carrier area of the inner layer of the knitted tube facing the wearer, a carrier area facing away from the wearer and the area surrounding the Surrounding area of the inner layer of the knitted tube facing the wearer and a surrounding area of the outer layer of the knitted tube facing the area of the wearer.
  • the knitted tube can comprise further layers, which are preferably arranged between the outer layer and the inner layer of the knitted tube.
  • a multi-layer knitted tube can be formed, for example, by cladding a base yarn, from which the inner layer of the knitted tube is at least partially formed, with a plating yarn from which the outer layer of the knitted tube is at least partially formed.
  • the material of the inner layer is predominantly hydrophilic.
  • the material of the inner layer comprises a polyamide material and particularly preferably consists essentially of a polyamide material.
  • the inner layer of the knitted tube particularly preferably comprises a hydrophilic polyamide yarn.
  • the hydrophilic yarn has a high number of filaments in relation to the fineness of the yarn.
  • the number of filaments of the yarn is preferably at least as large as half the fineness of the yarn in dtex, in particular at least as large as the fineness of the yarn in dtex, particularly preferably at least as large as twice the fineness of the yarn in dtex.
  • the hydrophilic yarn comprises filaments which do not have a circular cross-section, but a structured cross-section with indentations and / or bulges.
  • a structured cross section of the filaments of the hydrophilic yarn With such a structured cross section of the filaments of the hydrophilic yarn, the surface of the filaments is enlarged, which improves the hydrophilic properties.
  • the cross section of the filaments of the hydrophilic yarn each comprises a plurality of T-shaped sections, for example two, three or more T-shaped sections.
  • a yarn comprising several filaments with a structured cross-section, in which the indentations and bulges of adjacent filaments are in engagement, forms microchannels between the filaments through which liquid is conveyed very quickly due to the capillary effect. This improves the hydrophilic properties of the yarn.
  • the material of the outer layer comprises a polypropylene material, a wool material, a hydrophobically finished cotton material, a hydrophobically finished cellulose material and / or a hydrophobic polyamide material.
  • At least the outer layer of the knitted tube is preferably formed at least partially from a yarn which can be washed at a washing temperature of at least 60 ° C, in particular at least 80 ° C, particularly preferably at least 95 ° C.
  • At least the outer layer of the knitted tube is at least partially formed from a yarn which, for cleaning, is heated to a cleaning temperature of at least 60 ° C, in particular at least 80 ° C, particularly preferably at least 95 ° C, is heatable.
  • a cleaning temperature of at least 60 ° C, in particular at least 80 ° C, particularly preferably at least 95 ° C.
  • the knitted tube is closed on at least one of its end areas, preferably on both end areas, by a seam and / or by gluing.
  • the knitted tube is turned over on itself at at least one of its end areas, preferably at both end areas.
  • a tunnel can be formed on at least one end region of the knitted tube, preferably on both end regions of the knitted tube.
  • the hygiene mask preferably comprises at least one fastening means, by means of which the hygiene mask can be fastened to the head of a wearer.
  • a fastening means preferably comprises a substantially linear fastening element, for example a cord or a tape, which extends through the tunnel or through one of the tunnels of the base body of the hygiene mask.
  • the fastening element is fixed to the tunnel, for example by sewing and / or by gluing.
  • the fastening element is only fixed at a single point on the tunnel, because this means that the base body of the hygiene mask can be deformed relative to the fastening element, in particular by gathering it.
  • the hygiene mask comprises a filter element which is arranged in the interior of the knitted tube.
  • Such a filter element can in particular comprise a fleece material.
  • the fleece material comprises a polyester material.
  • the filter material of the filter element comprises a microfilament material.
  • Such a microfilament material can comprise a polyester material and / or a polyamide material.
  • the polyester material and / or the polyamide material can each comprise filaments structured in a star shape.
  • the filaments can be split into microfilaments, for example by the action of a high pressure liquid jet.
  • the number of microfilaments into which a filament is split can be 12 or more, in particular 16 or more, particularly preferably 32 or more.
  • microfilaments can preferably have a fineness of less than dtex 1.0, in particular of at most dtex 0.60, particularly preferably of at most dtex 0.20, for example of approximately dtex 0.15.
  • the microfilaments can be linked and consolidated with one another in such a way that a textile material is created.
  • the microfilament material preferably comprises polyester in a proportion by weight of at least 40 percent by weight, in particular at least 50 percent by weight, particularly preferably at least 60 percent by weight, for example approximately 70 percent by weight.
  • microfilament material preferably comprises polyester in a weight proportion of at most 90 percent by weight, in particular at most 80 percent by weight.
  • the microfilament material can preferably comprise polyamide in a proportion by weight of at least 10 percent by weight, in particular at least 20 percent by weight, for example approximately 30 percent by weight.
  • the microfilament material preferably comprises polyamide in a weight proportion of at most 60 percent by weight, in particular of at most 50 percent by weight, particularly preferably of at most 40 percent by weight.
  • the weight per unit area of the filter material, in particular the microfilament material is preferably at least 80 g / m 2 , in particular at least 90 g / m 2 , for example approximately 100 g / m 2 .
  • the weight per unit area of the filter material is preferably at most 120 g / m 2 , in particular at most 110 g / m 2 .
  • the particle retention capacity of the filter element in particular a filter element made of microfilament material, with a particle size of 1 ⁇ m is preferably at least 90%, in particular at least 95%, particularly preferably at least 97%.
  • the water vapor permeability of the filter material, in particular a micro filament material is preferably at least 3,000 g / m 2/24 hours, in particular g / m 2 / 24h sondere at least 5000 h, more preferably at least 6,000 g / m 2/24 hr.
  • the air permeability of the filter material is preferably at least 10 l / dm 2 / min, in particular at least 15 l / dm 2 / min, particularly preferably at least 20 l / dm 2 / min.
  • the air permeability of the filter material is preferably at most 40 l / dm 2 / min, in particular at most 30 l / dm 2 / min, particularly preferably at most 20 l / dm 2 / min.
  • the hygiene mask according to the invention is designed as a medical face mask in accordance with the requirements of DIN EN 14683 (in the version of October 2019), specifically in accordance with one of the types I, II or IIR defined in this standard.
  • a medical face mask according to type I has a bacterial filter performance (BFE) of at least 95%, a pressure difference of less than 40 Pa / cm 2 and a microbiological purity of at most 30 CFU / g.
  • BFE bacterial filter performance
  • CFU stands for "colony-forming unit”, that is to say the unit in which the number of cultivable microorganisms is expressed.
  • a type II medical face mask has a bacterial filter performance (BFE) of at least 98%, a pressure difference of less than 40 Pa / cm 2 and a microbiological purity of at most 30 CFU / g.
  • a medical face mask of type II R has a bacterial filter performance (BFE) of at least 98%, a pressure difference of less than 60 Pa / cm 2 , a pressure of the spray resistance of at least 16.0 kPA and a microbiological purity of at most 30 CFU / g on.
  • a method for determining the pressure of the spray resistance is given in DIN EN 14683 in the version of October 2019.
  • the base body of the hygiene mask is provided with at least one anti-slip area.
  • the anti-slip area is preferably formed from an anti-slip material.
  • the slip-resistant material can in particular comprise a polyurethane material and / or a silicone material.
  • the slip-resistant material can, for example, be produced on the base body by a pattern printing process, in particular a transfer printing process or a screen printing process.
  • the material to be printed is applied to a carrier paper and transferred to the base body by means of a press at an elevated temperature.
  • the base body of the hygiene mask is provided with a prefabricated nosepiece.
  • the hygienic mask comprises a nasal clip which contains at least one metallic wire.
  • the metallic wire may contain an iron material or a steel material and preferably be formed substantially entirely from an iron material or a steel material.
  • the nasal clip can in particular comprise two wires made of a metallic material, preferably arranged parallel to one another.
  • the nasal clip comprises a strip or a band made of a plastic material.
  • the at least one wire of the nasal clip can be embedded in the strip or the band of plastic material.
  • the plastic material can comprise a polyethylene material, in particular an LDPE (“Low Density Polyethylene”) material, and can preferably be formed from such a material.
  • LDPE Low Density Polyethylene
  • the nasal clip comprises two metallic wires which are embedded in a tape or a strip made of an LDPE material.
  • the nasal clip is preferably washable at a temperature of at least 90 ° C, in particular at least 80 ° C, particularly preferably at least 95 ° C.
  • the nasal clip is preferably attached to the knitted tube or to the filter element, if such a filter element is present.
  • the nasal clip can be fixed to the knitted tube or to the filter element, for example, by gluing and / or by sewing. In a preferred embodiment of the invention it is provided that the nosepiece is sewn onto the filter element.
  • the nasal clip can be brought into the interior of the knitted tube together with the filter element to which the nasal clip is sewn.
  • the nasal clip is arranged in the interior of the knitted tube and is surrounded by a seam, the stitches of which penetrate the knitted tube and possibly a filter element arranged in the interior of the knitted tube, so that the nasal clip is relatively in its position through the seam to the hose is retained.
  • the anti-slip area is formed by spraying an anti-slip material onto the base body and / or a yarn with anti-slip properties, for example a yarn comprising a polyurethane material and / or a silicone material, in the anti-slip area outer layer of the knitted tube is knitted in.
  • the hygienic mask is provided with a position marker.
  • Such a position marking can be arranged, for example, on the environment side of the base body facing away from the wearer of the hygiene mask when the hygiene mask is worn.
  • the position marker is preferably moved downwards or upwards relative to a central arrangement on the base body of the hygiene mask in order to indicate to the wearer of the hygiene mask in which orientation he has to arrange the hygiene mask on his face.
  • the position marking can for example comprise a graphic symbol, a pictorial representation and / or an alphanumeric character or an alpha-numeric character group.
  • the position marking includes the name or a logo of the manufacturer of the hygiene mask, a batch number and / or the name of the wearer of the hygiene mask.
  • the present invention further relates to a method for producing a hygienic mask which comprises a base body which, when the hygienic mask is worn, at least partially covers a mouth area and a nose area of a wearer of the hygienic mask.
  • the present invention is based on the further object of creating such a method for producing a hygienic mask, which can be carried out easily and produces a hygienic mask which is easy to handle and can have a good filter effect.
  • this object is achieved by a method for producing such a hygiene mask, which comprises the following:
  • the method according to the invention is particularly suitable for producing the hygiene mask according to the invention.
  • the knitted tube is preferably made on a circular knitting machine.
  • the knitted tube can be knitted in such a way that the mesh size of the knitted tube varies along the knitting direction, which corresponds to the wale direction. In this way, the compressed knitted tube can be given a three-dimensional shape which is adapted to the shape of the cheek and / or chin area of the face of a wearer of the hygiene mask.
  • the knitted tube can be knitted in such a way that in the compressed state it is at least partially concave on the carrier side and at least partially convex on the surrounding side.
  • the knitted fabric of the knitted tube is preferably pre-washed before or after the fastening of the at least one fastening element to the knitted tube by a pre-wash at a temperature of at least 60 ° C, in particular at least 80 ° C. In this way, a possible shrinkage of the knitted tube due to a first wash is anticipated before the hygiene mask is given to the wearer.
  • the hygiene mask according to the invention is washed after each wear, preferably at a temperature of at least 60 ° C., in particular at least 80 ° C., and / or by heating to a Temperature of preferably at least 60 ° C., in particular of at least 80 ° C., can be brought into a largely sterile state and thus reusable.
  • Fig. 1 is a schematic view of a hygiene mask, which a
  • the base body which when the hygiene mask is worn, at least partially covers a mouth area and a nose area of a wearer of the hygiene mask, wherein the base body includes a knitted tube with the direction of view of a side of the hygiene mask facing the environment of the wearer when the hygiene mask is worn ;
  • FIG. 2 shows a further view of the hygiene mask from FIG. 1, looking in the direction of a carrier side of the hygiene mask facing the wearer of the hygiene mask in the worn state of the hygiene mask;
  • FIG. 3 shows a schematic section through the base body of the hygiene mask from FIGS. 1 and 2, along the line 3 - 3 in FIG. 1;
  • FIG. 4 shows a view corresponding to FIG. 2 of a second embodiment of a hygienic mask which comprises a nasal clip which is fixed to the filter element of the hygienic mask, with the direction of view on a carrier side of the hygienic mask facing the wearer of the hygienic mask when the hygienic mask is worn.
  • Identical or functionally equivalent elements are denoted by the same reference symbols in all figures.
  • a hygiene mask shown in FIGS. 1 to 3 and designated as a whole by 100 comprises a base body 102 which, when the hygiene mask is worn, at least partially, preferably essentially completely, covers a mouth area and a nose area of a wearer of the hygiene mask.
  • the main body 102 of the hygiene mask 100 comprises a knitted tube 104.
  • the knitted tube 104 is knitted along a knitting direction 106, which is aligned essentially horizontally when the hygiene mask 100 is worn.
  • the knitting direction 106 corresponds to the wale direction 108 of the knitting of the knitted tube 104.
  • the courses of the knitted fabric of the knitted tube 104 extend along a course direction 110 which is oriented essentially perpendicular to the wale direction 108.
  • the knitted tube 104 of the base body 102 encloses an interior 112 of the knitted tube 104.
  • the knitted tube 104 preferably comprises at least two layers, namely an inner layer 114 facing the interior 112 of the knitted tube 104 and an outer layer 116 facing away from the interior 112 of the knitted tube 104.
  • a carrier area 118 of the outer layer 116 of the knitted tube 104 facing the wearer of the hygienic mask 100 when the hygienic mask 100 is worn has an outer surface 120 which forms a carrier side 122 of the base body 102 of the hygienic mask 100.
  • a surrounding area 124 of the outer layer 116 of the knitted tube 104 facing away from the wearer of the hygiene mask 100 in the worn state of the hygiene mask 100 has an outer surface 126 which, when the hygiene mask 100 is worn, faces away from the wearer surrounding area 128 of the base body 102 of the hygiene mask 100 forms.
  • the interior space 112 surrounded by the knitted tube 104 can in principle be empty.
  • the hygiene mask 100 comprises a filter element 130 which is arranged in the interior 112 of the knitted tube 104.
  • the filter element 130 is preferably designed in the form of a sheet.
  • the outer contour of the filter element 130 is shown in broken lines in FIGS. 1 and 2.
  • the air exhaled through the nose and / or mouth by the wearer of the hygiene mask 100 passes from the wearer side 122 of the base body 102 of the hygiene mask 100 along a thickness direction 132 of the base body 102 through the support area 118 of the outer layer 116 of the knitted tube 104, through a support area 134 of the inner layer 114 of the knitted tube 104, through the filter element 130, through a surrounding area 136 of the inner layer 114 of the knitted tube 104 and through the surrounding area 124 of the outer layer 116 of the knitted tube 104 to the surrounding side 128 of the base body 102 and from there into the surroundings of the Carrier.
  • air from the environment of the wearer travels in the opposite direction from the environment side 128 of the base body 102 of the hygiene mask 100 through the environment area 124 of the outer layer 116 of the knitted tube 104, through the environment area 136 of the inner layer 114 of the knitted tube 104, through the filter element 130, through the carrier area 134 of the inner layer 114 of the knitted tube 104 and through the carrier area 118 of the outer layer 116 of the knitted tube 104 to the carrier side 122 of the base body 102 and from there to the nose and / or mouth of the wearer of the hygiene mask 100.
  • the base body 102 of the hygiene mask 100 thus forms a five-layer air filter.
  • the knitted tube 104 also comprises at least one further layer, for example an intermediate layer arranged between the outer layer 116 and the inner layer 114, and / or the filter element 130 is formed in multiple layers, the increase in the number of layers increases Correspondingly, the number of layers of the air filter formed by the base body 102 and the filter element 130 of the hygiene mask 100 to be traversed by the air when breathing in or when breathing out.
  • the filter element 130 comprises a filter material, which preferably comprises a nonwoven material.
  • the fleece material comprises a polyester material.
  • the filter material of the filter element 130 comprises a microfilament material.
  • a microfilament material comprises a polyester material and / or a polyamide material.
  • Such a microfilament material can in particular be produced in the following way:
  • a polyester granulate and / or a polyamide granulate is converted into endless, preferably star-shaped structured filaments.
  • the filaments are spread evenly on a base.
  • the filaments are split up into microfilaments.
  • These microfilaments preferably have a fineness of at most dtex 0.30, in particular of at most dtex 0.20, for example of approximately dtex 0.15.
  • the microfilaments are firmly linked to one another by the application of the high-pressure liquid jet and solidified in such a way that a textile material is created.
  • the microfilament material preferably comprises polyester in a proportion by weight of at least 40 percent by weight, in particular at least 50 percent by weight, particularly preferably at least 60 percent by weight, for example approximately 70 percent by weight.
  • the microfilament material preferably comprises polyester in a weight proportion of at most 90 percent by weight, in particular at most 80 percent by weight. Furthermore, the microfilament material preferably comprises polyamide in a weight proportion of at least 10 percent by weight, in particular at least 20 percent by weight, for example approximately 30 percent by weight.
  • the microfilament material preferably comprises polyamide in a weight proportion of at most 60 percent by weight, in particular of at most 50 percent by weight, particularly preferably of at most 40 percent by weight.
  • the microfilament material can comprise, for example, about 70 percent by weight polyester and about 30 percent by weight polyamide, or about 50 percent by weight polyester and about 50 percent by weight polyamide.
  • the weight per unit area of the filter material, in particular the microfilament material is preferably at least 80 g / m 2 , in particular at least 90 g / m 2 , for example approximately 100 g / m 2 .
  • the weight per unit area of the filter material is preferably at most 120 g / m 2 , in particular at most 110 g / m 2 .
  • the particle retention capacity of the filter element 130 is preferably at least 90%, in particular at least 95%, particularly preferably at least 97%.
  • the water vapor permeability of the filter material, in particular of the micro-filament material is preferably at least 3,000 g / m 2/24 hours, in particular g / m 2 / 24h sondere at least 5000 h, more preferably at least 6,000 g / m 2/24 hr.
  • the air permeability of the filter material, in particular the microfilament material is preferably at least 10 l / dm 2 / min, in particular at least 15 l / dm 2 / min, particularly preferably at least 20 l / dm 2 / min.
  • the air permeability of the filter material is preferably at most 40 l / dm 2 / min, in particular at most 30 l / dm 2 / min, particularly preferably at most 20 l / dm 2 / min.
  • the material of the inner layer 114 of the knitted tube 104 is predominantly hydrophilic.
  • the material of the inner layer 114 of the knitted tube 104 comprises a polyamide material and particularly preferably consists essentially of a polyamide material.
  • the inner layer 114 is particularly preferably formed from a hydrophilic poly amide yarn.
  • the filaments of this yarn do not have a circular cross-section, but a structured cross-section with indentations and / or bulges through which the surface of the filaments is enlarged.
  • the cross section of the filaments is composed of several T-shaped sections, for example two, three or more T-shaped sections.
  • a yarn composed of several filaments with a structured cross-section, in which the indentations and bulges of adjacent filaments engage with one another, has microchannels through which liquid is conveyed very quickly due to the capillary effect.
  • the inner layer 114 preferably comprises a yarn which has a fineness of at least 40 dtex and / or of at most 50 dtex, for example of at least 44 dtex.
  • the number of filaments of the yarn is preferably at least 30 and / or at most 40.
  • the yarn can be designed as a single thread or as a twisted thread.
  • the material of the outer layer 116 is predominantly hydrophobic.
  • the material of the outer layer 116 comprises a polypropylene material.
  • the material of the outer layer 116 comprises wool, hydrophobically finished cotton, hydrophobically finished cellulose and / or a hydrophobic polyamide material.
  • the outer layer 116 of the knitted tube 104 is preferably formed from a yarn which can be washed at a washing temperature of at least 60 °, in particular at least 80 °, particularly preferably at least 95 ° C.
  • a washing temperature of at least 60 °, in particular at least 80 °, particularly preferably at least 95 ° C.
  • the yarn from which the outer layer 116 of the knitted tube 104 is formed has a good peeling value.
  • the outer layer 116 of the knitted tube 104 preferably comprises a hydrophobic yarn with a fineness that is preferably at least 70 dtex and / or at most 90 dtex.
  • the yarn from which the outer layer 116 of the knitted tube 104 is formed preferably comprises at least 20 and / or preferably at most 30 filaments.
  • the yarn from which the outer layer 116 of the knitted tube 104 is formed can be designed as a single thread or as a twisted thread.
  • the knitted tube 104 is closed at its end regions 138, for example by a seam and / or by gluing.
  • the knitted tube 104 is hit at its end regions 138 on itself.
  • a tunnel 140 is formed in each case.
  • a seam 142 which also extends through in each case an end region 154 of the filter element 130, the regions of the knitted tube 104 lying one above the other are connected to one another in the end regions 138 thereof.
  • the hygienic mask 100 further comprises at least one fastening means 144, which each preferably comprises a substantially linear fastening element 146.
  • Each fastening element 148 is fixed on the base body 102 of the hygiene mask 100.
  • the fastening element 146 can be fixed to the base body 102, for example, in that the fastening element 146 extends through one of the tunnels 140 of the base body 102.
  • each of the fastening elements 146 is designed to be closed in an annular manner.
  • the fastening element 146 is fixed to the tunnel 140, for example by gluing and / or by sewing.
  • Each fastening element 146 is preferably fixed at only a single point 148 on the tunnel 140 in order to enable the main body 102 to be gathered when the hygiene mask 100 is placed on the head of the wearer.
  • the hygienic mask 100 is primarily intended to have a low permeability for the air exhaled by the wearer of the hygienic mask 100 through the nose and / or mouth.
  • Each of the fastening elements 146 is preferably formed out as a cord.
  • the material of the fastening element 146 can, for example, comprise a, preferably elastic, polypropylene material and / or an elastane material.
  • Each of the fastening elements 146 is hooked into one ear of the wearer when the hygiene mask 100 is put on.
  • the base body 102 of the hygiene mask 100 can be provided with at least one anti-slip area 150 on the wearer side 122.
  • the anti-slip area 150 is preferably formed from an anti-slip material, for example from a polyurethane material and / or from a silicone material.
  • the slip-resistant material can, for example, be arranged in the anti-slip area 150 of the base body 102 by a pattern printing process, in particular a transfer printing process or a screen printing process.
  • a slip-resistant material to be sprayed onto the base body 102 in the anti-slip area 150 and / or a yarn with slip-resistant properties, for example a one Polyurethane material and / or a silicone material comprising yarn, in the anti-slip area 150 in the outer layer 116 of the knitted tube 104 to be knitted.
  • the hygiene mask 100 is provided with a position marker 152.
  • Such a position marker 152 can be arranged, for example, on the surrounding side 128 of the base body 102.
  • the position marker 152 is preferably shifted downwards or upwards with respect to a central arrangement on the base body 102 in order to indicate to the wearer of the hygiene mask 100 in which orientation he has to arrange the hygiene mask 100 on his face.
  • the position marking 152 is arranged in the lower half of the surrounding side 128 of the base body 102 of the hygiene mask 100.
  • the position marker 152 can comprise, for example, a graphic symbol, a pictorial representation and / or an alphanumeric character or an alpha-numeric character group.
  • the position marker 152 includes the name or a logo of the manufacturer of the hygiene mask 100, a batch number and / or the name of the wearer of the hygiene mask 100.
  • the knitted tube 104 is preferably knitted on a circular knitting machine, for example on a fine stocking circular knitting machine.
  • the circular knitting machine preferably has a diameter of at least 3 inches and / or at most 5 inches, for example a diameter of approximately 4 inches.
  • the circular knitting machine comprises a cylinder with preferably at least 300 needles and / or at most 500 needles, for example with approximately 400 needles.
  • the knitted tube 104 may be made on a 4 inch diameter circular knitting machine with a 400 needle cylinder.
  • the knitted tube 104 is knitted, for example, as a right / left knitted fabric from a hydrophilic base yarn forming the inner layer 114 of the knitted tube 104, on the outside of which a hydrophobic cladding yarn forming the outer layer 116 of the knitted tube 104 is plated.
  • the knitted tube 104 can be formed out as a plush knitted fabric.
  • a polyamide yarn with a fineness of 44 dtex made up of 34 filaments can be used as a single thread as the hydrophilic base yarn.
  • a polypropylene yarn with the fineness dtex 78 made of 25 filaments can be used as a single thread as the hydrophobic plating yarn.
  • the finished knitted tube 104 is flattened and the sheet-shaped filter element 130 is pushed into the interior 112 of the knitted tube 104 between the carrier area 134 of the inner layer 114 of the knitted tube 104 and the surrounding area 136 of the inner layer 114 of the knitted tube 104.
  • a tunnel section 156 of a fastening element 146 is placed on the carrier side 122 of the knitted tube 104 (see the right end region 138 of the knitted tube 104 in FIG is).
  • the adjacent end region 138 of the knitted tube 104 is then folded over onto the knitted tube 104 in order to form a tunnel 140 through which the tunnel section 156 of the respective fastening element 146 extends.
  • the superimposed areas of the knitted tube 104 are then connected to one another along the seam 142, which also extends through one end region 154 of the filter element 130, so as to permanently close the knitted tube 104 at its two end regions 138.
  • the fastening elements 146 are fixed to the respectively assigned tunnel 140 of the knitted tube 104 by sewing and / or gluing.
  • the knitted fabric of the knitted tube 104 is prewashed before or after the fastening elements 146 are attached to the knitted tube 104 by a prewash at a temperature of at least 60 ° C., in particular of at least 80 ° C.
  • a possible shrinkage of the hygiene mask 100 due to a first wash is hereby anticipated before the hygiene mask 100 is given to the wearer.
  • a natural detergent is preferably used for the pre-wash.
  • the hygiene mask 100 is washed after each wear, preferably at a temperature of at least 60 ° C, in particular at least 80 ° C, particularly preferably at least 95 ° C, and / or by heating to a temperature of preferably at least 60 ° C., in particular from at least 80 ° C., particularly preferably from at least 95 ° C., into a largely sterile state and thus reusable.
  • the hygiene mask 100 Due to the filter material used in the filter element 130, the hygiene mask 100 has a high antimicrobial filtration performance and at the same time a high level of breathability.
  • the knitted tube 104 which comprises a hydrophobic outer layer 116 and a hydrophilic inner layer 114, the moisture contained in a breath cloud is quickly removed from the face of the wearer of the hygiene mask 100 through the hydrophobic outer layer 116 into the hydrophilic inner layer Location 114 derived.
  • the hydrophilic material of the inner layer 114 of the knitted tube 104 ensures a large-area distribution of the moisture contained in the breath cloud over a large part of the total area of the base body 102 of the hygiene mask 100, which enables rapid re-drying.
  • the hygiene mask 100 is preferably designed in such a way that it meets the requirements for a medical face mask of one of the types I, II or IIR according to DIN EN 14683 in the version of October 2019.
  • a second embodiment of a hygiene mask 100 shown in FIG. 4 differs from the first embodiment shown in FIGS is deformable when the hygiene mask 100 is placed on the face of the wearer, so that the shape of the base body 102 of the hygiene mask 100 conforms to the face shape of the wearer of the hygiene mask 100.
  • the nasal clip 158 preferably comprises a strip or a band 160, for example made of a plastic material, in which one, two or more wires 162 made of a metallic material, for example an iron material or a steel material, are embedded.
  • the nasal clip 158 is dimensionally stable in such a way that it maintains a shape that is given to it after the hygiene mask 100 has been placed on the wearer's face by pressing the nosepiece 158 against the shape of the face of the wearer of the hygiene mask 100.
  • the nose clip 158 is preferably attached to the filter element 130 of the hygiene mask 100.
  • the nose clip 158 can be arranged on the carrier side of the filter element 130 facing the wearer of the hygiene mask 100 or on the surrounding side of the filter element 130 facing away from the wearer of the hygienic mask 100 and facing the environment of the wearer.
  • the nasal clip 158 can be attached to the filter element 130, for example, by gluing and / or by sewing.
  • the nasal clip 158 is fixed to the filter element 130 by sewing it with three seams 164.
  • the nose clip 158 is fastened to the filter element 130 and then introduced into the interior 112 of the knitted tube 104 together with the filter element 130.
  • the nasal clip 158 is surrounded by a seam 166, the stitches of which at least partially penetrate the knitted tube and the filter element 130, so that the seam 166 slips of the nose clip relative to the knitted tube 104 prevented.
  • the second embodiment of a hygiene mask 100 shown in FIG. 4 corresponds in terms of structure, function and method of manufacture to the first embodiment shown in FIGS. 1 to 3, to which extent reference is made to the above description.

Landscapes

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

Abstract

L'invention vise à fournir un masque sanitaire (100) qui est facile à produire et à manipuler et qui présente de préférence un bon effet de filtration, et qui comprend une partie principale (102) qui recouvre au moins partiellement une région de bouche et une région de nez d'un porteur du masque sanitaire (100) lorsqu'il est porté. À cet effet, la partie principale (102) comprend un tube tricoté (104).
PCT/EP2021/061720 2020-05-06 2021-05-04 Masque sanitaire et procédé de production d'un masque sanitaire WO2021224251A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21723718.9A EP4146855A1 (fr) 2020-05-06 2021-05-04 Masque sanitaire et procédé de production d'un masque sanitaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020112288.8A DE102020112288A1 (de) 2020-05-06 2020-05-06 Hygienemaske und Verfahren zum Herstellen einer Hygienemaske
DE102020112288.8 2020-05-06

Publications (1)

Publication Number Publication Date
WO2021224251A1 true WO2021224251A1 (fr) 2021-11-11

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PCT/EP2021/061720 WO2021224251A1 (fr) 2020-05-06 2021-05-04 Masque sanitaire et procédé de production d'un masque sanitaire

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Country Link
EP (1) EP4146855A1 (fr)
DE (1) DE102020112288A1 (fr)
WO (1) WO2021224251A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200386879Y1 (ko) * 2005-03-26 2005-06-16 권영아 방향제 항균필터를 교체할 수 있는 은 니트 마스크
KR20110012978A (ko) * 2009-07-31 2011-02-09 코오롱글로텍주식회사 기능성 마스크 및 그 제조방법
KR20140100709A (ko) * 2013-02-07 2014-08-18 남상윤 편직 마스크 및 이의 제조방법
US20160015098A1 (en) * 2013-03-15 2016-01-21 Matthew CONLON A facemask having one or more nanofiber layers
DE202015009034U1 (de) * 2015-12-21 2016-07-15 Pro Feet Functional Wear GmbH Multifunktionstuch
CN108211157A (zh) * 2017-07-11 2018-06-29 （株）喜途意成进 一种无缝型口罩及其制作方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202020001178U1 (de) 2020-03-25 2020-04-23 GW Sport-Brands GmbH Ohrenfreie Gesichtsmaske mit Vlieseinsatz
DE202020001177U1 (de) 2020-03-25 2020-04-23 GW Sport-Brands GmbH Ohrenfreie Gesichtsmaske

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200386879Y1 (ko) * 2005-03-26 2005-06-16 권영아 방향제 항균필터를 교체할 수 있는 은 니트 마스크
KR20110012978A (ko) * 2009-07-31 2011-02-09 코오롱글로텍주식회사 기능성 마스크 및 그 제조방법
KR20140100709A (ko) * 2013-02-07 2014-08-18 남상윤 편직 마스크 및 이의 제조방법
US20160015098A1 (en) * 2013-03-15 2016-01-21 Matthew CONLON A facemask having one or more nanofiber layers
DE202015009034U1 (de) * 2015-12-21 2016-07-15 Pro Feet Functional Wear GmbH Multifunktionstuch
CN108211157A (zh) * 2017-07-11 2018-06-29 （株）喜途意成进 一种无缝型口罩及其制作方法

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EP4146855A1 (fr) 2023-03-15
DE102020112288A1 (de) 2021-11-11

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