FR3114484A3 - Mask sheet and mask comprising it - Google Patents

Mask sheet and mask comprising it Download PDF

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Publication number
FR3114484A3
FR3114484A3 FR2110063A FR2110063A FR3114484A3 FR 3114484 A3 FR3114484 A3 FR 3114484A3 FR 2110063 A FR2110063 A FR 2110063A FR 2110063 A FR2110063 A FR 2110063A FR 3114484 A3 FR3114484 A3 FR 3114484A3
Authority
FR
France
Prior art keywords
fiber layer
mask
layer
mask sheet
fibers
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
FR2110063A
Other languages
French (fr)
Inventor
Yuta ABE
Tomoyuki Motegi
Hiroya Suzuki
Hideo Kobayashi
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.)
Kao Corp
Original Assignee
Kao Corp
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 Kao Corp filed Critical Kao Corp
Publication of FR3114484A3 publication Critical patent/FR3114484A3/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • B32B5/267—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers characterised by at least one non-woven fabric layer that is a spunbonded fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/022—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/05—Interconnection of layers the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection
    • 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
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres
    • B01D2239/0233—Island-in-sea
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0631—Electro-spun
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/064—The fibres being mixed
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0677—More than one layer present in the filtering material by spot-welding
    • 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
    • B01D2239/1258—Permeability
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/16—Structural features of fibres, filaments or yarns e.g. wrapped, coiled, crimped or covered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment

Abstract

Une feuille de masque permettant à la fois la performance de collecte de particules fines et l’amélioration de la facilité d’utilisation, et un masque comportant la feuille de masque sont proposés. Une feuille de masque 10 a une première couche de fibres et une deuxième couche de fibres. Un diamètre moyen de fibre de fibres constitutives de la deuxième couche de fibres est supérieur à un diamètre moyen de fibre de fibres constitutives de la première couche de fibres. Le diamètre moyen de fibre des fibres constitutives de la première couche de fibres est de 0,2 μm ou plus et de 2 μm ou moins. Un grammage de la première couche de fibres est de 2 g/m2 ou plus et de 20 g/m2 ou moins. Un rapport entre un grammage de la deuxième couche de fibres et le grammage de la première couche de fibres est supérieur à 0 et inférieur à 8. La feuille de masque a une région correspondant à la bouche A, disposée en correspondance avec une position d’une bouche d’un utilisateur en vue en plan, et a une portion jointe joignant les couches de fibres et l’une à l’autre. Le masque 1 utilise la feuille de masque en tant que feuille filtrante détachable ou en tant que corps de masque 5. Figure pour l’abrégé : 1A mask sheet enabling both fine particle collection performance and improved usability, and a mask including the mask sheet are provided. A mask sheet 10 has a first layer of fibers and a second layer of fibers. An average fiber diameter of constituent fibers of the second fiber layer is greater than an average fiber diameter of constituent fibers of the first fiber layer. The average fiber diameter of the fibers constituting the first fiber layer is 0.2 μm or more and 2 μm or less. A basis weight of the first fiber layer is 2 g/m2 or more and 20 g/m2 or less. A ratio between a basis weight of the second fiber layer and the basis weight of the first fiber layer is greater than 0 and less than 8. The mask sheet has a region corresponding to the mouth A, disposed in correspondence with a position of a user's mouth in plan view, and has a joined portion joining the fiber layers and each other. Mask 1 uses the mask sheet as a tear-off filter sheet or as the mask body 5. Figure for abstract: 1

Description

Feuille de masque et masque la comportantMask sheet and mask comprising it

La présente invention concerne une feuille de masque et un masque comportant la feuille de masque.The present invention relates to a mask sheet and a mask comprising the mask sheet.

Contexte de l’artArt background

En tant que masque couvrant la bouche et le nez d’un utilisateur, un masque ayant un corps de masque formé d’un matériau de type feuille tel qu’une étoffe non tissée est connu. Des exemples de l’effet du masque comportent la prévention de l’intrusion de poussière, de virus, de pollen et similaires provenant de l’extérieur. Afin d’obtenir un tel effet, le document de brevet 1 divulgue un masque dans lequel une portion du corps de masque est constituée d’une pluralité de feuilles de fibres d’électret. En outre, les documents de brevets 2 et 3 divulguent chacun un masque muni d’une couche de nanofibres dans un corps de masque.As a mask covering the mouth and nose of a user, a mask having a mask body formed of a sheet material such as a nonwoven fabric is known. Examples of the effect of the mask include preventing the intrusion of dust, viruses, pollen and the like from outside. In order to achieve such an effect, patent document 1 discloses a mask in which a portion of the mask body is made of a plurality of sheets of electret fibers. Furthermore, patent documents 2 and 3 each disclose a mask provided with a layer of nanofibers in a mask body.

Liste des citationsList of quotes

Document de brevet 1 : JP 2009-273726 APatent Document 1: JP 2009-273726 A

Document de brevet 2 : JP 2015-196263 APatent Document 2: JP 2015-196263 A

Document de brevet 3 : JP 2018-172806 APatent Document 3: JP 2018-172806 A

est une vue en perspective éclatée montrant schématiquement un mode de réalisation d’une feuille de masque de la présente invention en utilisation. is an exploded perspective view schematically showing one embodiment of a mask sheet of the present invention in use.

est une vue en perspective éclatée montrant schématiquement un autre mode de réalisation de la feuille de masque de la présente invention en utilisation. is an exploded perspective view schematically showing another embodiment of the mask sheet of the present invention in use.

est une vue en plan montrant schématiquement un autre mode de réalisation de la feuille de masque de la présente invention. is a plan view schematically showing another embodiment of the mask sheet of the present invention.

est une vue en coupe transversale montrant schématiquement un mode de réalisation de la feuille de masque de la présente invention. is a cross-sectional view schematically showing one embodiment of the mask sheet of the present invention.

est une vue en coupe transversale montrant schématiquement un autre mode de réalisation de la feuille de masque de la présente invention. is a cross-sectional view schematically showing another embodiment of the mask sheet of the present invention.

est une vue en coupe transversale montrant schématiquement un autre mode de réalisation encore de la feuille de masque de la présente invention. is a cross-sectional view schematically showing yet another embodiment of the mask sheet of the present invention.

est une vue en perspective montrant schématiquement un mode de réalisation de l’appareil de fabrication de feuille de masque de la présente invention. is a perspective view schematically showing one embodiment of the mask sheet manufacturing apparatus of the present invention.

est une vue en perspective montrant schématiquement un mode de réalisation dans lequel la feuille de masque de la présente invention est utilisée en tant que corps enroulé. is a perspective view schematically showing an embodiment in which the mask sheet of the present invention is used as a rolled body.

est une vue en perspective montrant schématiquement un autre mode de réalisation dans lequel la feuille de masque de la présente invention est utilisée en tant que corps enroulé. is a perspective view schematically showing another embodiment in which the mask sheet of the present invention is used as a rolled body.

Claims (14)

Feuille de masque comprenant :
une première couche de fibres ; et
une deuxième couche de fibres prévue sur un côté de surface de la première couche de fibres,
dans laquelle un diamètre moyen de fibre de fibres constituant la deuxième couche de fibres est supérieur à un diamètre moyen de fibre de fibres constituant la première couche de fibres,
le diamètre moyen de fibre des fibres constituant la première couche de fibres est de 0,2 μm ou plus et de 2 μm ou moins,
un grammage de la première couche de fibres est de 2 g/m2ou plus et de 20 g/m2ou moins, et
un rapport entre un grammage de la deuxième couche de fibres et le grammage de la première couche de fibres est supérieur à 0 et inférieur à 8.Mask sheet including:
a first layer of fibers; and
a second fiber layer provided on a surface side of the first fiber layer,
wherein an average fiber diameter of fibers constituting the second fiber layer is greater than an average fiber diameter of fibers constituting the first fiber layer,
the average fiber diameter of the fibers constituting the first fiber layer is 0.2 μm or more and 2 μm or less,
a basis weight of the first layer of fibers is 2 g/m 2 or more and 20 g/m 2 or less, and
a ratio between a basis weight of the second layer of fibers and the basis weight of the first layer of fibers is greater than 0 and less than 8. Feuille de masque selon la revendication 1, dans laquelle la feuille de masque a une perméabilité à l’air de 0,5 kPa•s/m ou moins.A mask sheet according to claim 1, wherein the mask sheet has an air permeability of 0.5 kPa•s/m or less. Feuille de masque comprenant :
une première couche de fibres ; et
une deuxième couche de fibres prévue sur un côté de surface de la première couche de fibres,
dans laquelle un diamètre moyen de fibre de fibres constituant la deuxième couche de fibres est supérieur à un diamètre moyen de fibre de fibres constituant la première couche de fibres,
le diamètre moyen de fibre des fibres constituant la première couche de fibres est de 0,2 μm ou plus et de 2 μm ou moins,
la feuille de masque a une région correspondant à la bouche disposée en correspondance avec une position d’une bouche d’un utilisateur en vue en plan,
la région correspondant à la bouche a une ou plusieurs portions jointes joignant la première couche de fibres et la deuxième couche de fibres dans une plage de 20 mm x 20 mm dans la région correspondant à la bouche en vue en plan, et
une aire totale des portions jointes est supérieure à 0 % et inférieure ou égale à 2 % d’une aire de la région correspondant à la bouche en vue en plan.Mask sheet including:
a first layer of fibers; and
a second fiber layer provided on a surface side of the first fiber layer,
wherein an average fiber diameter of fibers constituting the second fiber layer is greater than an average fiber diameter of fibers constituting the first fiber layer,
the average fiber diameter of the fibers constituting the first fiber layer is 0.2 μm or more and 2 μm or less,
the mask sheet has a mouth region disposed in correspondence with a position of a user's mouth in plan view,
the mouth region has one or more joined portions joining the first fiber layer and the second fiber layer within a range of 20 mm x 20 mm in the mouth region in plan view, and
a total area of the joined portions is greater than 0% and less than or equal to 2% of an area of the region corresponding to the mouth in plan view. Feuille de masque selon la revendication 3, dans laquelle les portions jointes sont formées par liaison par fusion.A mask sheet according to claim 3, wherein the joined portions are formed by fusion bonding. Feuille de masque selon la revendication 3 ou 4, dans laquelle une aire moyenne de chacune des portions jointes est de 0,1 mm2ou plus et de 3 mm2ou moins.A mask sheet according to claim 3 or 4, wherein an average area of each of the joined portions is 0.1 mm 2 or more and 3 mm 2 or less. Feuille de masque selon l’une quelconque des revendications 1 à 5, dans laquelle le grammage de la deuxième couche de fibres est de 5 g/m2ou plus et de 30 g/m2ou moins.A mask sheet according to any of claims 1 to 5, wherein the basis weight of the second layer of fibers is 5 g/m 2 or more and 30 g/m 2 or less. Feuille de masque selon l’une quelconque des revendications 1 à 6, dans laquelle la deuxième couche de fibres est une étoffe non tissée.A mask sheet according to any of claims 1 to 6, wherein the second layer of fibers is a nonwoven fabric. Feuille de masque selon l’une quelconque des revendications 1 à 7, dans laquelle une troisième couche de fibres est en outre prévue sur un côté de surface de la première couche de fibres sur lequel la deuxième couche de fibres n’est pas disposée, et
un diamètre moyen de fibre de fibres constituant la troisième couche de fibres est supérieur au diamètre moyen de fibre des fibres constituant la première couche de fibres.A mask sheet according to any one of claims 1 to 7, wherein a third fiber layer is further provided on a surface side of the first fiber layer on which the second fiber layer is not disposed, and
an average fiber diameter of the fibers constituting the third fiber layer is greater than the average fiber diameter of the fibers constituting the first fiber layer. Feuille de masque selon l’une quelconque des revendications 1 à 8, dans laquelle une troisième couche de fibres est en outre prévue sur un côté de surface de la première couche de fibres sur lequel la deuxième couche de fibres n’est pas disposée, et
une surface externe de la deuxième couche de fibres ou une surface externe de la troisième couche de fibres fait face à la bouche d’un utilisateur.A mask sheet according to any one of claims 1 to 8, wherein a third fiber layer is further provided on a surface side of the first fiber layer on which the second fiber layer is not disposed, and
an outer surface of the second fiber layer or an outer surface of the third fiber layer faces a user's mouth. Corps enroulé obtenu par enroulement de la feuille de masque selon l’une quelconque des revendications 1 à 9, dans lequel la feuille de masque a une forme continue longue.A rolled body obtained by rolling up the mask sheet according to any one of claims 1 to 9, wherein the mask sheet has a long continuous shape. Corps enroulé selon la revendication 10, dans lequel le corps enroulé a des perforations suivant une direction coupant une direction longitudinale.A coiled body according to claim 10, wherein the coiled body has perforations in a direction intersecting a longitudinal direction. Masque comprenant la feuille de masque selon l’une quelconque des revendications 1 à 9 en tant que corps de masque.A mask comprising the mask sheet according to any one of claims 1 to 9 as a mask body. Masque comprenant :
un corps de masque ; et
une feuille filtrante pouvant être attachée au corps de masque et détachée de celui-ci,
dans lequel la feuille filtrante est la feuille de masque selon l’une quelconque des revendications 1 à 9.Mask including:
a mask body; and
a filter sheet that can be attached to and detached from the mask body,
wherein the filter sheet is the mask sheet according to any one of claims 1 to 9. Procédé d’utilisation de la feuille de masque selon l’une quelconque des revendications 1 à 9 en tant que feuille filtrante pouvant être attachée à un corps de masque et détachée de celui-ci dans un masque.A method of using the mask sheet according to any of claims 1 to 9 as a filter sheet attachable to and detachable from a mask body in a mask.
FR2110063A 2020-09-29 2021-09-24 Mask sheet and mask comprising it Pending FR3114484A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020163840 2020-09-29
JP2020-163840 2020-09-29

Publications (1)

Publication Number Publication Date
FR3114484A3 true FR3114484A3 (en) 2022-04-01

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ID=78605557

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2110063A Pending FR3114484A3 (en) 2020-09-29 2021-09-24 Mask sheet and mask comprising it

Country Status (4)

Country Link
CN (1) CN216533928U (en)
DE (1) DE202021105158U1 (en)
FR (1) FR3114484A3 (en)
RU (1) RU210758U1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5072708B2 (en) 2008-05-15 2012-11-14 ユニ・チャーム株式会社 mask
CN102548439B (en) * 2009-08-07 2015-03-25 尤妮佳股份有限公司 Face mask
JP2015196263A (en) 2014-03-31 2015-11-09 国立大学法人信州大学 Nanofiber laminate material, method of producing nanofiber laminate material, filter substrate or filter and mask or mask substrate
US9868002B2 (en) * 2014-07-17 2018-01-16 3M Innovative Properties Company Respirator including contrast layer
RU2015141569A (en) * 2015-09-30 2017-04-05 3М Инновейтив Пропертиз Компани FOLDING RESPIRATOR WITH FACE MASK AND EXHAUST VALVE
JP2018172806A (en) 2017-03-31 2018-11-08 興和株式会社 Face mask
RU180377U1 (en) * 2017-04-26 2018-06-08 Общество с ограниченной ответственностью "КИТ" (ООО "КИТ") Disposable medical mask with size adjustment

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CN216533928U (en) 2022-05-17
DE202021105158U1 (en) 2021-11-03

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