WO2022044597A1 - マスク - Google Patents

マスク Download PDF

Info

Publication number
WO2022044597A1
WO2022044597A1 PCT/JP2021/026498 JP2021026498W WO2022044597A1 WO 2022044597 A1 WO2022044597 A1 WO 2022044597A1 JP 2021026498 W JP2021026498 W JP 2021026498W WO 2022044597 A1 WO2022044597 A1 WO 2022044597A1
Authority
WO
WIPO (PCT)
Prior art keywords
seal
mask
pleated
portions
folded
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/JP2021/026498
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
崇博 島田
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.)
Zuiko Corp
Original Assignee
Zuiko 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 Zuiko Corp filed Critical Zuiko Corp
Priority to JP2022545525A priority Critical patent/JPWO2022044597A1/ja
Publication of WO2022044597A1 publication Critical patent/WO2022044597A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks

Definitions

  • the present invention relates to a mask used by being worn on the wearer's face.
  • Patent Document 1 discloses a mask including a flexible mask main body and an ear hook portion as an attachment portion for attaching the mask main body to the face.
  • the mask main body includes a pleated portion formed by folding a line extending in the width direction as a starting point, and a sealing portion at both ends in the width direction for stopping the overlap of the pleated portions.
  • Three rows of dot portions are formed in each of the seal portions at intervals in the width direction.
  • Patent Document 1 the amount of sealing cannot be increased in the dot portions of three rows. Therefore, not only the seal in each pleated portion is weak, but also the unsealed unsealed portion between the dot portions in the width direction is connected in the vertical direction. Therefore, the mask described in Patent Document 1 has an inconvenience that both ends in the width direction are difficult to bend along the face.
  • an object of the present invention is to provide a mask capable of improving the sealing strength in the pleated portion and having both ends in the width direction easily bend along the face.
  • the mask of the present invention includes a flexible mask body and a mounting portion for attaching the mask body to the user's face, and the mask body is along a line extending in the width direction of the mask body.
  • Each of the seal portions is provided with a pleated portion formed by folding the mask body and a seal portion at both ends in the width direction of the mask body to mutually fix the folded portion of the mask body in the pleated portion.
  • a plurality of elongated seal pieces extending over the entire width direction of the seal portion are provided side by side in the vertical direction.
  • a plurality of the pleated portions are provided via the non-folded portions in which the mask main body is not folded in the vertical direction, and the seal pieces are also provided in the non-folded portions. You may.
  • the number of the seal pieces in the pleated portion may be larger than the number of the seal pieces in the non-folded portion.
  • FIG. 1 is a front view of a mask according to an embodiment of the present invention.
  • FIG. 2 is a rear view of the mask.
  • FIG. 3 is a cross-sectional plan view in FIG.
  • FIG. 4 is a diagram showing a state in which the ear hook portion is expanded in FIG.
  • FIG. 5 is a sectional view taken along line VV in FIG.
  • FIG. 6 is an enlarged view of a main part in FIG.
  • FIG. 7 is a side view of the mask attached to the face.
  • the mask 1 includes a flexible mask main body 2 and a pair of ear hook portions 3 and 3 as attachment portions for attaching the mask main body 2 to the face.
  • the first direction X of the arrow is defined as the left-right direction
  • the second direction Y of the arrow is defined as the vertical direction.
  • the left-right direction may be regarded as a lateral direction, a width direction, or a longitudinal direction.
  • the vertical direction may be regarded as the vertical direction.
  • FIG. 1 is a plan view showing the outer surface side of the mask main body 2, that is, the side that does not come into contact with the user's nose or mouth.
  • FIG. 2 is a plan view showing the inner surface side of the mask main body 2, that is, the side that covers the user's nose and mouth and comes into contact with the nose and mouth.
  • the mask main body 2 includes upper and lower edge edges 2A and 2B extending linearly in the left-right direction, and left and right edge edges 2C and 2D extending linearly in the vertical direction.
  • the mask body 2 is formed in a horizontally long rectangular shape that is long in the left-right direction. Further, as shown in FIG. 5, in the mask main body 2, the filter sheet 4 is held and configured in a state of being sandwiched between the pair of nonwoven fabric sheets 5 and 5.
  • the mask main body 2 has a pleated portion 6 formed by folding the mask main body 2 along a line extending in the left-right direction, and pleats on both ends in the width direction of the mask main body 2.
  • a seal portion 7 for fixing the folded portions of the mask main body 2 in the portion 6 to each other is provided.
  • a plurality of pleated portions 6 are formed in the vertical direction.
  • Three pleated portions 6 of the present embodiment are formed in the vertical direction. The vertical dimensions of all the pleated portions 6 are configured to be the same.
  • the mask main body 2 includes a non-folding portion 8 between the pleated portions 6 and 6 adjacent to each other in the vertical direction among the plurality of pleated portions 6.
  • the mask body 2 of the present embodiment includes two non-folding portions 8.
  • the sheets 4 and 5 are overlapped with each other so as to have 9 layers in the order of 5, 4, 5, 5, 4, 5, 5, 4, 5. ing.
  • the non-folded portion 8 the sheets 4, 5 are overlapped in the order of 5, 4, 5 so as to form three layers. That is, in the pleated portion 6, the sheets 4 and 5 having a three-layer structure that are stacked in the order of 5, 4, and 5 are overlapped so as to form three layers.
  • the non-folded portion 8 has a three-layer structure in which the sheets 4, 5 are stacked in the order of 5, 4, 5. Therefore, the pleated portion 6 in which the sheets 4 and 5 are composed of 9 layers may be referred to as an overlapping portion with respect to the non-folded portion 8 composed of 3 layers of the sheets 4 and 5.
  • the seal portion 7 includes a first seal portion 9 for stopping the sheets 4 and 5 which are overlapped with each other, specifically, 9 layers shown in FIG.
  • the second sealing portion 10 for fixing the three layers of the non-folded portions 8 to each other, and the three layers of the sheets 4, 5 located on the upper side and the lower side of the pleated portion 6 shown in FIG.
  • the mask main body 2 is folded back at a position above the third seal portions 11 and 12 provided in the vertical direction and the third seal portion 11 shown in FIG. 5, and the sheets 4 and 5 are 5
  • the mask main body 2 is folded back at a position below the third seal portion 12 shown in FIG. 5 and the fourth seal portion 13 for fixing the layered portions to each other, and the sheets 4 and 5 have five layers. It is provided with a fifth seal portion 14 for fixing the portions of the above to each other.
  • Each of the first seal portion 9, the second seal portion 10, the third seal portion 11, 12, the fourth seal portion 13, and the fifth seal portion 14 has seal pieces 9A, 10A over the entire left-right direction of the seal portion.
  • a plurality of 11A, 12A, 13A, and 14A are arranged side by side at predetermined intervals in the vertical direction. Therefore, the seal portion 7 is composed of a plurality of seal pieces 9A, 10A, 11A, 12A, 13A, and 14A.
  • the intervals in the vertical direction of the seal pieces 9A, 10A, 11A, 12A, 13A, and 14A are the same, but the intervals may be different.
  • the seal pieces 9A, 10A, 11A, 12A, 13A, and 14A are formed in an elongated shape in the left-right direction. Further, all the seal pieces 9A, 10A, 11A, 12A, 13A, and 14A are arranged in a state where the lengths in the left-right direction are the same and the positions of both ends in the left-right direction are the same in the up-down direction.
  • the number of the seal pieces 9A of the pleated portion 6 is set to be larger than the number of the seal pieces 10A of the non-folded portion 8.
  • the number of the seal pieces 9A of the pleated portion 6 is 5, and the number of the seal pieces 10A of the non-folded portion 8 is 1. This is because the vertical dimension of the pleated portion 6 is longer than the vertical dimension of the non-folded portion 8. It is preferable to set the number of seal pieces according to the vertical dimension of the pleated portion 6 and the vertical dimension of the non-folded portion 8. Therefore, depending on the vertical dimension of the non-folded portion 8, the number of the seal pieces 10A of the non-folded portion 8 may be set to two or more.
  • the left-right length of the seal pieces 9A, 10A, 11A, 12A, 13A, 14A is preferably 1.7% of the left-right length of the mask body 2 to the left-right length of the mask body 2. It is set in the range of up to 6%. On the other hand, the above-mentioned set range may be other than the above-mentioned range.
  • sonic sealing using ultrasonic waves is preferable.
  • this sonic seal only the part to be sealed can be sealed, and the reliability of the seal can be improved.
  • another sealing method for example, heat sealing may be adopted.
  • heat sealing it is preferable that the influence of heat on the peripheral portion other than the sealing portion originally desired to be sealed, for example, between the sealing portion and the sealing portion is small.
  • the pleated portion 6 is configured by folding the sheets so as to have 9 layers, and the non-folded portion 8 is composed of 3 layers of sheets. Therefore, the amount of melted non-woven fabric by the sonic seal differs depending on the number of layers of the sheet. Specifically, the melted amount of the nonwoven fabric in the pleated portion 6 is larger than the melted amount of the nonwoven fabric in the non-folded portion 8. Further, the number of the seal pieces 9A of the pleated portion 6 is set to be larger than the number of the seal pieces 10A of the non-folded portion 8. Therefore, the melted amount of the nonwoven fabric in the pleated portion 6 is larger than the melted amount of the nonwoven fabric in the non-folded portion 8. As a result, the rigidity of the pleated portion 6 is stronger than the rigidity of the non-folded portion 8.
  • the mask main body 2 is provided at the upper end portion with a pair of upper and lower sixth seal portions 15 and 16 for stopping the five-layer sheets 4 and 5 shown in FIG. 5 over the entire left-right direction. ..
  • Each of the sixth seal portions 15 and 16 is composed of a plurality of (59 in this embodiment) dot-shaped seal portions 15A and 16A formed at equal intervals in the lateral direction.
  • the nose fit member 17 is arranged so as to be located between the upper and lower pair of sixth seal portions 15 and 16.
  • the nose-fit member 17 is composed of a plate-shaped wire that is plastically deformable.
  • a pair of dot-shaped left and right sealing portions 18 and 18 provided at both ends of the nose fit member 17 restrict the movement of the nose fit member 17 in the left-right direction. Further, the vertical movement of the nose fit member 17 is restricted by the pair of upper and lower sixth seal portions 15, 16.
  • the mask main body 2 has a pair of upper and lower seventh seal portions 19, 20 for fixing the sheets 4 and 5 folded in five layers shown in FIG. 5 over the entire left-right direction at the lower end portion.
  • Each of the seventh seal portions 19 and 20 is composed of a plurality of dot-shaped seal portions 19A and 20A formed at equal intervals in the lateral direction.
  • the vertical distance between the 7th seal portions 19 and 20 is set smaller than the vertical distance between the 6th seal portions 15 and 16.
  • the pair of ear hooks 3 and 3 all have the same configuration. Both ends of the pair of ear hooks 3, 3 are connected to each other via perforations, notches, or both. Then, these pair of ear hook portions 3, 3 are expanded from the connected state of FIGS. 1 and 3 to the expanded state as shown in FIG. 4 by separating the perforations, the notches, or both of them. Therefore, the mask 1 can be attached.
  • Each ear hook 3 has a pair of upper and lower first band-shaped members 21 and 22 whose one end is sealed and connected to the upper and lower ends of both ends on the front side of the mask body 2, and these upper and lower first band-shaped members 21.
  • a second band-shaped member 23 for connecting the other ends of the 22 in the vertical direction is provided.
  • the other ends of the upper and lower first band-shaped members 21 and 22 and the upper and lower end portions of the second band-shaped member 23 are connected by a plurality of seal portions 21A and 22A.
  • one end of a pair of upper and lower first band-shaped members 21 and 22 is sealed with seal pieces 12A, 13A and 14A for fixing the sheets 5, 4 and 5.
  • the first strip-shaped members 21 and 22 are made of the same member, and are made of two horizontally long rectangular non-woven fabrics extending in the left-right direction. As shown in FIG. 4, gather portions 21G and 22G are formed on the first strip-shaped members 21 and 22 so as to have elasticity. Further, the two non-woven fabrics are integrated by alternately penetrating the three elongated thread-shaped elastic members 25 from the front side to the back side and from the back side to the front side. When the ear hooks 3 and 3 are applied to both ears, the elastic member 25 is pulled so that the pulling force acts on both ears.
  • the elastic member 25 is made of a rubber thread, an elastic film, or the like.
  • the second strip-shaped member 23 is made of one piece of vertically long rectangular non-woven fabric that is long in the vertical direction.
  • the second band-shaped member 23 is connected to the first band-shaped member 21 whose upper end is on the upper side by a large number of sealing portions 21A described above. Further, the lower end portion of the second strip-shaped member 23 is connected to the lower first strip-shaped member 22 by a large number of sealing portions 22A described above.
  • the second band-shaped member 23 includes an extending portion 24 that extends further downward from the portion to which the lower end portion is connected and protrudes downward from the lower end of the mask main body 2. The extension portion 24 may be omitted.
  • the second band-shaped members 23, 23 of the pair of ear hook portions 3, 3 shown in FIG. 1 are grasped with both hands on both sides in the left-right direction. Cut off pulls, perforations and / or cutouts. As a result, as shown in FIG. 4, the pair of ear hooks 3 and 3 can be expanded. From this state, the pair of ear hooks 3 and 3 are wound around the inner surface side of the mask body 2, and then the pair of ear hooks 3 and 3 are applied to both ears. In this way, the mask 1 is attached.
  • FIG. 7 shows a state in which the mask 1 is attached.
  • FIG. 7 only one end 2T side of the mask main body 2 is shown.
  • both ends 2T and 2T of the mask body 2 are curved along the curved surface of the user's face G. Therefore, as a result, it is possible to make it difficult for a gap to occur between both ends 2T and 2T of the mask body 2 and the user's face G.
  • the seal piece 9A is formed in an elongated shape in the left-right direction. That is, the first seal portions 9 which are both ends of the mask main body 2 are easily bent so as to be curved in the vertical direction with the seal piece 9A as the starting point.
  • both ends 2T and 2T in the width direction can easily follow the face.
  • the seal piece 9A having an elongated shape covering the entire area in the left-right direction of the first seal portion 9 is used for sealing. Therefore, the amount of sealing of the pleated portion 6 is increased, and the sealing strength of the pleated portion 6 can be improved.
  • seal piece 10A is also provided on the non-folded portion 8. Therefore, not only the pleated portion 6 but also the non-folded portion 8 is formed with a bend centered on the seal piece 10A. Therefore, both ends 2T and 2T in the width direction are easily bent.
  • the number of the seal pieces 9A of the pleated portion 6 is set to be larger than the number of the seal pieces 10A of the non-folded portion 8. Therefore, while the pleated portion 6 is easily bent with a large number of seal pieces 9A while increasing the sealing strength, the non-folded portion 8 is also easily bent with a small number of seal pieces 10A, and the two ends 2T and 2T in the width direction are generally bent. It becomes easy to bend.
  • the rigidity of the pleated portion 6 is stronger than the rigidity of the non-folded portion 8 due to the difference in the amount of overlapping of the sheets and the difference in the number of seals between the pleated portion 6 and the non-folded portion 8. Therefore, a part of each pleated portion 6 is folded over each other with the seal piece 10A of the non-folded portion 8 as a reference. Specifically, the lower end portion of the pleated portion 6 located on the upper side in the vertical direction is folded over the upper end portion of the pleated portion 6 located on the center side so as to be located on the front side.
  • the lower end portion of the pleated portion 6 located on the center side is folded over the upper end portion of the pleated portion 6 located on the lower side so as to be located on the front side. Therefore, both ends 2T and 2T in the width direction are easily bent.
  • the "front surface” here means the outer surface of the mask body 2, that is, the side that does not come into contact with the user's nose or mouth.
  • the gap between the two ends 2T and 2T of the mask main body 2 and the user's face G in the central portion of the mask having a large bending rate can be made smaller. Therefore, the mask 1 can be brought into close contact with the user's face.
  • the mask 1 of the present embodiment includes a flexible mask main body 2 and a mounting portion 3 for attaching the mask main body 2 to the user's face, and the mask main body 2 includes the mask main body 2.
  • a pleated portion 6 formed by folding along a line extending in the width direction and a sealing portion for mutually fixing the folded portions of the mask body 2 in the pleated portion 6 at both ends in the width direction of the mask body 2.
  • a plurality of elongated seal pieces 9A extending over the entire width direction of the seal portion 7 are provided side by side in the vertical direction in each of the seal portions 7.
  • the sealing piece 9A since the sealing piece 9A has an elongated shape over the entire width direction of the sealing portion 7, the sealing amount of the pleated portion 6 is increased, and the sealing strength of the pleated portion 6 can be improved. Further, since the seal piece 9A is formed in an elongated shape along the width direction, the seal portion 7 is easily bent so as to be curved in the vertical direction starting from these seal pieces 9A, and both ends in the width direction are along the face. easy.
  • a plurality of the pleated portions 6 are provided via the non-folded portions 8 in which the mask main body 2 is not folded, and the seal piece 10A is also provided on the non-folded portions 8. May be provided.
  • the non-folded portion 8 is formed with a bend starting from the seal piece 10A not only in the pleated portion 6 but also in the non-folded portion 8. Both ends in the direction are easy to bend.
  • the number of the seal pieces 9A of the pleated portion 6 is larger than the number of the seal pieces 10A of the non-folded portion 8.
  • the pleated portion 6 is easily bent with a large number of seal pieces 9A while increasing the sealing strength, while the non-folded portion 8 is also easily bent with a small number of seal pieces 10A, and both ends in the width direction are generally bent. It becomes easy to bend.
  • the seal strength in the pleated portion 6 is improved by providing the seal portion 7 with a plurality of elongated seal pieces 9A and 10A extending in the entire width direction of the seal portion 7 in the vertical direction. It is possible to provide a mask 1 in which both ends in the width direction are easily bent along the face.
  • the mask of the present invention is not limited to the configuration of the above embodiment or the action and effect resulting from the above configuration. Further, the mask of the present invention can be variously modified without departing from the spirit of the present invention.
  • the non-woven fabric is used for the mask 1, but a film using various synthetic resins such as a plastic film and a silicone film may be used.
  • the number of sheets to be stacked is preferably a plurality of sheets such as two or more, but one may be used as long as it has a sufficient thickness.
  • the vertical dimensions of all three pleated portions 6 are the same.
  • the present invention is not limited to this, and the vertical dimension of at least one pleated portion may be configured to be different from the vertical dimension of the other pleated portion.
  • all the seal pieces 9A of the pleated portion 6 are configured in a parallel posture along the left-right direction.
  • the present invention is not limited to this, and a part of the seal pieces 9A may be formed in a direction intersecting the left-right direction, and the part of the seal pieces 9A may be configured in a non-parallel posture.
  • the mask body 2 is configured in a rectangular shape.
  • the present invention is not limited to this, and any shape may be formed as long as it can cover the user's mouth and nose, such as a square shape, an elliptical shape, and a polygonal shape.
  • the ear hooks 3 and 3 are configured in a U shape, but they may be configured in any shape such as a U shape, a V shape, and a trapezoidal shape. Further, the ear hook portion may be made of a rubber or cloth string.
  • ear hook portions 3 and 3 are exemplified as attachment portions for attaching to the user's face.
  • a pair of strip-shaped or string-shaped members extending rearward from both ends of the mask body 2, and a locked portion provided at one of the free-end portions of the free-end portions of the pair of members. A mask by locking the locked portion to the locked portion at the back of the neck by using a locking portion provided on the other free end portion so that the locked portion can be locked and unlocked.
  • the main body 2 may be attached to the user's face.
  • the pair of ear hooks 3 and 3 are hung on both ears.
  • the present invention is not limited to this, for example, the pair of ear hooks 3 and 3 are not wound around the inner surface side of the mask body 2, and the pair of ear hooks cover the user's face on the outer surface side of the mask body 2. Parts 3 and 3 may be placed on both ears.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
PCT/JP2021/026498 2020-08-24 2021-07-14 マスク Ceased WO2022044597A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2022545525A JPWO2022044597A1 (https=) 2020-08-24 2021-07-14

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-141006 2020-08-24
JP2020141006 2020-08-24

Publications (1)

Publication Number Publication Date
WO2022044597A1 true WO2022044597A1 (ja) 2022-03-03

Family

ID=80354965

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/026498 Ceased WO2022044597A1 (ja) 2020-08-24 2021-07-14 マスク

Country Status (2)

Country Link
JP (1) JPWO2022044597A1 (https=)
WO (1) WO2022044597A1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD977727S1 (en) 2020-05-28 2023-02-07 Shirohato Co., Ltd. Sanitary mask
USD979744S1 (en) * 2020-05-20 2023-02-28 Zuiko Corporation Sanitary mask
USD989946S1 (en) 2020-12-23 2023-06-20 Shirohato Co., Ltd. Sanitary mask

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010187901A (ja) * 2009-02-18 2010-09-02 Zuiko Corp 使い捨てマスクおよびその製造方法
JP3203072U (ja) * 2015-12-25 2016-03-10 ユニ・チャーム株式会社 使い捨てマスク
JP2018083988A (ja) * 2016-11-21 2018-05-31 白元アース株式会社 マスク
JP2019019435A (ja) * 2017-07-20 2019-02-07 白元アース株式会社 衛生用マスク

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010187901A (ja) * 2009-02-18 2010-09-02 Zuiko Corp 使い捨てマスクおよびその製造方法
JP3203072U (ja) * 2015-12-25 2016-03-10 ユニ・チャーム株式会社 使い捨てマスク
JP2018083988A (ja) * 2016-11-21 2018-05-31 白元アース株式会社 マスク
JP2019019435A (ja) * 2017-07-20 2019-02-07 白元アース株式会社 衛生用マスク

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD979744S1 (en) * 2020-05-20 2023-02-28 Zuiko Corporation Sanitary mask
USD977727S1 (en) 2020-05-28 2023-02-07 Shirohato Co., Ltd. Sanitary mask
USD989946S1 (en) 2020-12-23 2023-06-20 Shirohato Co., Ltd. Sanitary mask

Also Published As

Publication number Publication date
JPWO2022044597A1 (https=) 2022-03-03

Similar Documents

Publication Publication Date Title
WO2022044597A1 (ja) マスク
JP6499032B2 (ja) 使い捨てマスク
JP5901900B2 (ja) マスク
CN102770185B (zh) 口罩
CN102762261B (zh) 口罩
CN111770696A (zh) 一次性口罩
JP2008093428A (ja) マスク
JP6902855B2 (ja) マスク
JP4996264B2 (ja) マスク
JP5442150B1 (ja) マスク及びアイマスク
JP2007136243A (ja) マスク
JP2007021029A (ja) マスク
JP2007021029A5 (https=)
JP4921305B2 (ja) マスク
JP4990228B2 (ja) 衛生マスク
JP5837252B1 (ja) 使い捨てマスク
JP4372638B2 (ja) 立体マスク
JP2008055036A (ja) マスク
JP2015126821A (ja) 保湿体、マスク及びマスクの製造方法
JP7210512B2 (ja) マスク
JP2007021027A5 (https=)
JP4732954B2 (ja) マスクおよびその製造方法
JP5901899B2 (ja) マスク
JP3135320U (ja) 立体マスク
JP2012120709A (ja) フェイスマスク

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21861026

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022545525

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21861026

Country of ref document: EP

Kind code of ref document: A1