Classifications

• • 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
• • 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
  • A62B18/025—Halfmasks
• • 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

Definitions

• the present invention relates to a mask that covers a target portion of a face including a mouth and a nose tip.
• a mask having a rectangular shape formed by stacking a plurality of gauze sheets, and ring-shaped rubber straps attached to the left and right sides has been widely used. These are types that can be used as flat masks in terms of shape.
• Patent Document 1 The thing of Patent Document 1 is formed such that the ear hook part extends in the lateral direction, and the cover part (substantially corresponds to the main body part of the present invention) has high rigidity and almost extends. This prevents the cover from bulging and provides a relatively wide space around the mouthpiece and nostril when wearing a mask, allowing you to breathe easily. This is what I did.
• the part facing both sides of the nose has a problem in that it is difficult to prevent the entry of pollen or virus that easily causes a gap due to the projection of the nose bridge and nose wing. Also, if there is such a gap, the moisture exhausted from the mouth and nose due to breathing will be exhausted from the upper end to the outside, so if the spectacles become cloudy, There are also problems.
• Patent Document 1 Japanese Patent No. 3660036
• Patent Document 2 JP 2004-49356 A Disclosure of the invention
• a main object of the present invention is to provide a mask having excellent fit to the face.
• a mask having a main body part covering a target portion of the face including the mouth and nose tip, and a locking part for locking the main body part to the body,
• a mask characterized by having a three-layer structure comprising at least a part or all of the main body portion, an outer layer, an inner layer, and a compression decompression layer disposed therebetween.
• the fit to the face is excellent.
• the compression restoration layer is placed between the outer layer and the inner layer, unlike the case where the compression restoration layer is exposed on the outer surface or the inner surface, the fit is improved while preventing the appearance and the touch from being bad. it can.
• the compression restoration layer is formed of a fiber assembly such as a nonwoven fabric, a bulky material is used.
• a bulky material is used.
• the three-layer structure of the present invention is adopted. The profits from this are large.
• “fitness” used in this specification does not mean that it adheres to the entire skin, but it adheres to a part that requires close contact as a mask, while ensuring a space necessary for breathing inside, It means to follow the face well.
• the portion facing both sides of the nose is likely to generate a gap due to the protrusion of the nose bridge and the nose wing, it is preferable to provide the three-layer structure of the present invention in this portion. Improved fit makes gaps less likely to occur and can effectively prevent foreign substances such as pollen and viruses from entering. For spectacle wearers, clouding of spectacles can be suppressed.
• the compression resilience is a parameter representing the recoverability when the material is compressed. If the recoverability is good, the compression resilience increases.
• This compression resilience can be measured by a handy compression tester (KES-G5, manufactured by Kato Tech). The measurement conditions for this tester are: SENS: 2, force meter type: lkg, SPEED RANGE: STD, DEF sensitivity: 20, caloric pressure area: 2cm 2 , capture interval: 0.1 (standard), STROKE SET: 5.0, upper limit load: 50gf
• the compression restoration layer is made of a compression restoration material that is folded or stacked in a plurality of layers.
• the compression decompression layer formed by folding the material as described in this section is like a panel, it becomes thick and excellent in resilience. Further, even if a plurality of layers of materials are stacked, the restoring property is weaker than that of the above-described folding, but the material can be secured in terms of thickness, so that it can be applied to the present invention.
• the portion facing the mouth and nose tip is a three-dimensional mask having a three-dimensional shape that bulges outward from the surrounding portion.
• Such a three-dimensional mask is particularly suitable for applying the present invention because it has poor fit around the nose.
• the mask has excellent fit to the face.
• FIG. 1 to FIG. 3 show a first embodiment of a three-dimensional mask, which is a main body 10 that covers a target portion of a face including a mouth and a nose tip, and a locking portion having a hole for hanging on an ear. 20 and.
• Fig. 1 shows the unfolded state before joining, where the horizontal direction is the horizontal direction and the vertical direction is the vertical direction.
• a valley-shaped notch is formed in the upper part of the main body 10, and a portion B along the valley is joined by ultrasonic bonding or heat welding, and the portion facing the mouth, mouth, and nose as shown in FIG.
• the three-dimensional mask has a three-dimensional shape that bulges outward from the surrounding portion. Note that this three-dimensional shape is formed only by a three-dimensional dimensional relationship, and becomes a three-dimensional shape without requiring an elastic structure such as expansion / contraction of the material or pleats.
• the present invention is not limited to the three-dimensional display means.
• a form in which the upper part of the central part is joined in the vertical direction is adopted.
• the number of joined parts may be two or more, or may be joined in the lateral direction.
• an appropriate method can be adopted.
• the outer layer 30 forms an overall mask shape including the main body portion 10 and the locking portion 20, and the inner layer is in contact with the skin so as to cover the entire inner surface side of the main body portion 10. 50, and a compression restoration layer 40 is interposed between the inner layer 50 and the outer layer 30 at the upper edge of the main body portion facing both sides of the nose.
• the site of the three-layer structure including the compression / decompression layer 40 may be determined as appropriate. However, in order to improve the barrier property of the main body 10, it can be provided at one, a plurality of or all of the peripheral part. wear.
• the three-layer structure may be the entire body 10, or a part of the locking part 20 (one part, a plurality of or all of the peripheral part of the locking part 20) or the entire body as well as the body 10. It can be done.
• the compression restoration layer 40 can be formed of a compression restoration material such as a nonwoven fabric or a foam material.
• Nonwoven fabrics include meltblown, spunbond, air-through, point bond, Nonwoven fabric obtained by manufacturing method such as needle punch and spunlace can be used.
• the foam material polyurethane or the like can be used.
• the thickness of the compression decompression layer 40 is a force that can be appropriately determined. Preferably, it is 1 to: LOmm, and more preferably 1.5 to 5. Omm. If the thickness is excessively thick, a sense of incongruity is generated, and if the thickness is excessively thin, the amount of compression recovery decreases, resulting in poor shape followability.
• the air permeability of the decompression layer 40 is preferably 50 ⁇ 400ccZcm 2 sec der Ru of the preferred tool particularly 50 ⁇ 350ccZcm 2 sec. If the air permeability is too low, breathing easily occurs, and if the air permeability is too high, there is a possibility of passing through what should be blocked.
• the moisture permeability (JIS-Z-0208) of the compression restoration layer 40 is preferably 50 to 300 gZm 2 hr, and particularly preferably 100 to 200 gZm r. If the moisture permeability is too low, the inside of the mask will be easily stuffy, and if the air permeability is too high, the effect of preventing fogging of the glasses will be reduced.
• the compression recovery layer 40 can be formed of a folded compression recovery material.
• the number of folds is not particularly limited, and may be two folds, three folds (Z folds), or more.
• the compression / decompression performance of the compression / decompression layer 40 may be appropriately designed, but the compression resilience RC is preferably 50% or more, particularly preferably 60% or more. If the compression recovery property is too low, the shape following property, that is, the fit property is inferior to the thickness.
• various nonwoven fabrics obtained by a production method such as melt blown, spun bond, air through, point bond, needle punch, spun lace and the like can be suitably used. It is also possible to provide stretchability in the vertical and horizontal directions by interposing an extremely thin rubber thread vertically and horizontally between the laminated nonwoven fabrics.
• stretchable non-woven fabrics can also be used. Specific examples thereof include polyester-based copolymers obtained by block copolymerization of polyether-based, polyester-based, polycarbonate-based darcol, etc., polyamide-based, polyurethane-based elastomers, And a laminate of these and a nonwoven fabric.
• a material having elasticity can also be used for the force main body portion 10 suitable for use in the locking portion 20.
• various nonwoven fabrics obtained by manufacturing methods such as melt blown, spun bond, air through, point bond, needle punch, and spun lace can be suitably used.
• the inner layer 50 is preferably a material that is breathable and does not irritate the skin.
• a synthetic fiber paper can also be used as the inner layer 50. Specific examples of the synthetic fiber mixed paper include those having a blend of 35% PEZPET bicomponent fiber and 35% pulp fiber.
• a perforated plastic film can be used to ensure air permeability.
• the perforated plastic film can be obtained by a known forming method.
• a film in which a thermoplastic film is perforated by hot press or the like, or a composite sheet made of this and a non-woven fabric can be mentioned. It is desirable that at least the inner surface of the film is subjected to a hydrophilic treatment.
• the means for hydrophilization treatment is not limited, but it is desirable to apply glyceryl monooleinate or sorbitan monolaurate to the inner surface of the film.
• the outer surface (atmosphere side) may also be subjected to a hydrophilic treatment.
• the adjacent layers 30, 40, and 50 are preferably bonded by ultrasonic bonding, thermal welding, bonding with an adhesive, or the like.
• the upper edge, lower edge and ear hook are punched out, and then folded at the center in the lateral direction. Part B along the valley notch can be joined.
• FIG. 5 and FIG. 6 show a second embodiment, in which the inner layer 50 and the outer layer 30 are joined around the compression restoration layer 40.
• This joint C can be achieved by ultrasonic bonding, thermal welding, adhesion with an adhesive, or the like.
• the joint C around the compression restoration layer 40 is preferably continuous in the circumferential direction and has an annular shape as shown in the figure, but may be partially, for example, dotted. The point is that the compression decompression layer 40 is restrained between the outer layer 30 and the inner layer and does not move inadvertently. ,.
• the joint C around the compression restoration layer 40 can also be formed to serve as a joint for obtaining a three-dimensional shape.
• the joint C that also serves as a three-dimensional shape can be joined in a separate process from the other joint C.
• the compression restoration layer 40 since the compression restoration layer 40 is surrounded and restrained by the joint C, the compression restoration layer 40 which does not need to be joined to the adjacent layers 30 and 50 is thermally treated. There is an advantage that even a material which is difficult to be fused can be used. The rest is the same as in the first embodiment.
• FIG. 7 and 8 show a configuration in which one compression restoration layer 40, 40 is provided in each of the portions facing both sides of the nose. In this way, a plurality of compression / decompression layers 40 can be provided as necessary. Others are the same as in the second embodiment.
• Figs. 9 and 10 are based on the second embodiment, in which the compression restoration layer 40 has a rectangular shape, and the joint B between the inner layer and the outer layer surrounding the compression restoration layer 40 has a straight shape. Disconnection, arrangement and joining are facilitated. Further, the joint C around the compression restoration layer 40 is formed separately from the joint B for obtaining a three-dimensional shape. Others are the same as in the second embodiment.
• each compression restoration layer has a rectangular shape
• the joint between the inner layer and the outer layer surrounding the compression restoration layer has a linear shape. It is easy to cut, place and join in Further, the joint C around the compression restoration layer 40 is formed separately from the joint B for obtaining a three-dimensional shape. Others are the same as in the third embodiment.
• the compression / restoration material is arranged in a wider area than the portion that enhances the fit, and the portion 40 that enhances the fit of the compression / restoration material is excluded. And the form processed into the state which is not restored is also proposed.
• a non-restorable portion 41 (not a compressive decompression layer because it does not have resilience) is formed between the outer layer 30 and the inner layer 50 in the processed portion, and the outer layer 30 and the inner layer 50 are not processed in the non-worked portion.
• a compression restoration layer portion 40 is formed therebetween.
• a processing method when the material has heat-fusibility, a processing method in which the material is heated while being compressed, such as ultrasonic bonding or heat welding, can be used. However, the material has heat-fusibility. Shina, In some cases, a processing method may be employed in which the material is compressed with an adhesive while being compressed as necessary. This processing can be performed in the state of the compression-recoverable material alone or in a state after the compression-recoverable material and at least one of the outer layer 30 and the inner layer 50 are laminated.
• the portions of the compression decompression layer portion 40 and the non-restorability portion 41 can be appropriately determined.
• the compression restoring material is arranged over the entire upper edge of the main body facing both sides of the nose and the entire lower part thereof, and the compression restoring layer portion 40 is provided in the former part without any processing.
• the latter part is processed to form a non-restorable part 41. Therefore, the formation region of the compression / decompression layer 40 is the same as that of the first embodiment.
• the present embodiment can also be applied to the case where the compression / decompression layer 40 is formed in another part or the compression / decompression layer 40 is provided in a plurality of places.
• the locking portions 20 and 20 can be separate members from the main body portion 10.
• the connection between the main body part 10 and the locking parts 20 and 20 can be formed by an ultrasonic bonding or thermal welding, in addition to an adhesive or the like.
• the present invention can be applied to a wide range of uses in addition to a mask covering the nose and mouth for the purpose of blocking allergens in hay fever and the like, and preventing infection in colds and the like.
• FIG. 1 is a development view before joining processing according to the first embodiment.
• FIG. 2 is a cross-sectional view taken along the line Y—Y in FIG.
• FIG. 3 is a schematic explanatory diagram of a mounted state.
• FIG. 4 is a cross-sectional view showing another form of the compression restoration layer.
• FIG. 5 is a development view before joining processing according to the second embodiment.
• FIG. 6 is a cross-sectional view taken along the line XX in FIG.
• FIG. 7 is a development view before joining processing according to a third embodiment.
• FIG. 8 is a cross-sectional view taken along the line XX in FIG.
• FIG. 9 is a development view before joining processing according to the fourth embodiment.
• FIG. 10 is a cross-sectional view taken along the line XX in FIG.
• FIG. 11 is a development view before joining processing according to another fourth embodiment.
• FIG. 12 is a cross-sectional view taken along the line XX in FIG.
• FIG. 13 is a development before joining processing according to a fifth embodiment.
• FIG. 14 is a cross-sectional view taken along line YY in FIG.
• FIG. 15 is a development view of a sixth embodiment in which the main body and the ear hook are separated.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Life Sciences & Earth Sciences (AREA)
• Zoology (AREA)
• Pulmonology (AREA)
• Physical Education & Sports Medicine (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Respiratory Apparatuses And Protective Means (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

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Citations (3)

Family Cites Families (5)

• 2005
  • 2005-07-20 JP JP2005210446A patent/JP4594181B2/ja not_active Expired - Fee Related
• 2006
  • 2006-07-20 WO PCT/JP2006/314352 patent/WO2007010968A1/ja not_active Ceased
  • 2006-07-20 KR KR1020087003545A patent/KR101283519B1/ko not_active Expired - Fee Related
  • 2006-07-20 CN CN2006800264677A patent/CN101227953B/zh not_active Expired - Fee Related

Patent Citations (3)

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