WO2007010968A1

WO2007010968A1 - Mask

Info

Publication number: WO2007010968A1
Application number: PCT/JP2006/314352
Authority: WO
Inventors: Toshio Muranaka
Original assignee: Daio Paper Corporation
Priority date: 2005-07-20
Filing date: 2006-07-20
Publication date: 2007-01-25
Also published as: KR101283519B1; CN101227953A; JP4594181B2; JP2007021030A; KR20080041196A; CN101227953B

Abstract

[PROBLEMS] To provide a mask having excellent fitting property to the face of a user. [MEANS FOR SOLVING THE PROBLEMS] This mask comprises a body part (10) covering the objective portion of the face of the user having the mouth and the nose tip of the user and locking parts (20) for locking the body part (10) to the body of the user. The mask is formed in a three-layer structure in which at least the portions of the body part (10) facing the both sides of the nose of the user comprise outer layers (30), inner layers (50), and compression recovering layers (40) disposed therebetween.

Description

Specification

Mask

Technical field

The present invention relates to a mask that covers a target portion of a face including a mouth and a nose tip.

Background art

[0002] Conventionally, 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.

[0003] In recent years, masks using non-woven fabric have been developed for the purpose of disposable use, and in use, those that deform in shape following the swelling of the mouth or nose (see, for example, Patent Document 1 and Patent Document 2) ) Has been proposed and commercialized. These are the types that can be used as three-dimensional masks.

[0004] 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.

[0005] Although the advantages of the present invention are great, a person has various facial skeletons (profile and size) and simply refers to the lateral direction (from the mouth and nose to the ear. The direction is the direction perpendicular to the horizontal direction.) It is difficult to ensure versatility as a mask only by having elasticity.

[0006] In particular, 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

Problems to be solved by the invention

[0007] Therefore, a main object of the present invention is to provide a mask having excellent fit to the face.

Means for solving the problem

[0008] The present invention that has solved the above problems is as follows.

In 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.

[0009] (Function and effect)

In the present invention, since the thickness changes following the face shape by having the compression restoration layer, the fit to the face is excellent. In addition, since 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. In particular, when the compression restoration layer is formed of a fiber assembly such as a nonwoven fabric, a bulky material is used. However, since such a material tends to be unpleasant to the touch, the three-layer structure of the present invention is adopted. The profits from this are large. In addition, “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.

[0010] <Invention of Claim 2>

The mask according to claim 1, wherein at least portions facing both sides of the nose have the three-layer structure.

[0011] (Function and effect)

Since 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 mask according to claim 1 or 2, wherein the compression resilience RC of the compression restoration layer is 50% or more.

[0013] (Function and effect)

When the compression resilience RC is within this range, the shape following ability to the unevenness of the face is sufficiently exhibited, and the fit is particularly excellent. Note that the compression resilience (RC) 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 mask according to any one of claims 1 to 3, wherein the compression restoration layer is made of a compression restoration material that is folded or stacked in a plurality of layers.

[0015] (Function and effect)

Since 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 mask according to any one of claims 1 to 4, wherein 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.

[0017] (Function and effect)

Such a three-dimensional mask is particularly suitable for applying the present invention because it has poor fit around the nose.

The invention's effect [0018] As described above, according to the present invention, the mask has excellent fit to the face. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(First embodiment)

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.

[0020] However, the present invention is not limited to the three-dimensional display means. In the illustrated example, in order to form a three-dimensional mask, a form in which the upper part of the central part is joined in the vertical direction is adopted. However, the number of joined parts may be two or more, or may be joined in the lateral direction. In addition, an appropriate method can be adopted.

In the first embodiment, 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.

[0022] 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.

[0023] 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. As the foam material, polyurethane or the like can be used.

[0024] 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.

[0025] The air permeability of the decompression layer 40 (JIS-L1096. 6. 27A method) 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.

[0026] 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.

[0027] In order to form a thicker layer in the compression restoration layer 40, a plurality of materials can be laminated. In addition, in order to obtain a higher compression recovery property than just forming a thicker layer, as shown in FIG. 4, 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.

[0028] 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.

[0029] On the other hand, as the outer layer 30, 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. In addition, 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. [0030] As the inner layer 50, 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. Further, as the inner layer 50, a perforated plastic film can be used to ensure air permeability. The perforated plastic film can be obtained by a known forming method. For example, 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.

[0031] The adjacent layers 30, 40, and 50 are preferably bonded by ultrasonic bonding, thermal welding, bonding with an adhesive, or the like. In manufacturing, for example, after compressing layer material and inner layer material are stacked and joined in order on the outer layer material, 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.

[0032] (Second Embodiment)

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. ,.

[0033] Further, as shown in the figure, the joint C around the compression restoration layer 40 can also be formed to serve as a joint for obtaining a three-dimensional shape. In this case, the joint C that also serves as a three-dimensional shape can be joined in a separate process from the other joint C. In the second embodiment, 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.

[0035] (Third embodiment)

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.

[0036] (Fourth 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.

11 and 12 are based on the third embodiment, each compression restoration layer has a rectangular shape, and 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.

[0038] (Fifth embodiment)

As shown in Fig. 13 and Fig. 14, 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. As a result of this processing, 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.

[0039] As 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.

[0040] The portions of the compression decompression layer portion 40 and the non-restorability portion 41 can be appropriately determined. In the example shown in the figure, 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. Of course, 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.

[0041] (Sixth embodiment)

In each of the above embodiments, as shown in FIG. 15, 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.

Industrial applicability

[0042] 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.

Brief Description of Drawings

[0043] 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.

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.

Explanation of symbols

10 ... Body part, 20 ... Locking part, 30 ... Inner layer, 40 ... Compression decompression layer, 50 ... Outer layer, B, C

, D… Junction.

Claims

The scope of the claims

[1] In a mask having a main body portion covering a target portion of the face including the mouth and nose tip, and a locking portion for locking the main body portion to the body,

[2] The mask according to claim 1, wherein at least portions facing both sides of the nose have the three-layer structure.

[3] The mask according to claim 1 or 2, wherein the compression resilience RC of the compression restoration layer is 50% or more.

[4] The mask according to any one of claims 1 to 3, wherein the compression restoration layer is made of a compression restoration material that is folded or stacked in a plurality of layers.

5. The mask according to any one of claims 1 to 4, wherein the part facing the mouth and nose tip is a three-dimensional mask having a three-dimensional shape that bulges outward from the surrounding part.