WO2022004152A1 - 使い捨てマスク - Google Patents
使い捨てマスク Download PDFInfo
- Publication number
- WO2022004152A1 WO2022004152A1 PCT/JP2021/018464 JP2021018464W WO2022004152A1 WO 2022004152 A1 WO2022004152 A1 WO 2022004152A1 JP 2021018464 W JP2021018464 W JP 2021018464W WO 2022004152 A1 WO2022004152 A1 WO 2022004152A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mask
- skin
- main body
- agent
- nonwoven fabric
- Prior art date
Links
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/06—Mouthpieces; Nose-clips
Definitions
- the inside of the mask is less likely to get stuffy because the filter member has good air permeability.
- the mask 1 of the present embodiment includes a filter member 11 that collects virus droplets and bacterial droplets, unlike a mask formed of gauze or the like that is repeatedly used while washing. Therefore, in order to prevent the collecting effect of the filter member 11 from being reduced by washing, the mask 1 of the present embodiment is a mask that is supposed to be used for disposable purposes.
- the skin-side nonwoven fabric 12 preferably contains hydrophilic fibers. More preferably, the skin-side nonwoven fabric 12 contains 50% or more of hydrophilic fibers. By doing so, the skin-side nonwoven fabric 12 easily retains the moisture contained in the wearer's breath, the endothermic agent 30 of the skin-side nonwoven fabric 12 easily comes into contact with the moisture, and the contact time becomes longer. Therefore, an endothermic reaction by the endothermic agent 30 is likely to occur, and the cooling sensation effect is enhanced.
- the non-skin side surface of the filter member 11 forms at least a part of the non-skin side surface of the mask main body portion 10
- the skin side surface of the skin side non-woven fabric 12 forms at least a part of the skin side surface of the mask main body portion 10. It is preferable that it is formed. By doing so, the number of sheets laminated in the thickness direction in the mask main body 10 is reduced, and the space inside the mask 1 can be made difficult to get stuffy.
- the regions other than the left and right side portions where the side sheets 13 are arranged are composed of two non-woven fabrics (filter member 11 and skin-side non-woven fabric 12).
- the ventilation resistance value of the filter member 11 is preferably 0.45 kPa ⁇ s / m or less, preferably 0.3 kPa ⁇ s / m or less.
- the aeration resistance value of the filter member 11 is higher than 0.45 kPa ⁇ s / m, even if the mask 1 has the endothermic agent 30, the wearer may easily feel the stuffiness in the mask 1. Therefore, in addition to the cooling effect of the endothermic agent 30, by maintaining the air permeability of the filter member 11 appropriately, the stuffiness in the mask 1 can be improved even in the hot summer season.
- the filter member 11 of the present embodiment is a sheet in which a non-woven fabric made of a polyolefin fiber is dielectrically polarized (electret-treated). As described above, the filter member 11 having a collecting function due to the electric charge has a reduced collecting function due to the adhesion of alcohol.
- the endothermic agent 30 does not contain alcohol.
- the solvent contained in the endothermic agent 30 is preferably an aqueous solvent.
- the skin-side nonwoven fabric 12 is attached to the filter member 11 after the alcohol-based solvent is vaporized in the mask 1 production line. It is good to join them.
- the heat absorbing agent 30 in the mask 1 does not contain alcohol.
- the filter member 11 has a lower basis weight of the endothermic agent 30 than the skin-side nonwoven fabric 12, and more preferably, the endothermic agent 30 is not arranged on the filter member 11.
- the endothermic agent 30 is arranged on the skin-side nonwoven fabric 12 close to the wearer. Therefore, the endothermic agent 30 easily comes into contact with the wearer's breath, and the cooling sensation effect is enhanced.
- the endothermic reaction occurs at a position close to the wearer, the surface temperature of the mask 1 tends to decrease, and the wearer tends to feel a cool feeling. Further, it is possible to prevent the collecting function of the filter member 11 from being reduced due to the endothermic agent 30 adhering to the filter member 11.
- the central portion in the vertical direction has a low degree of adhesion to the wearer's skin, but the wearer's breath comes into contact with more heat-absorbing agent 30. Therefore, the effect of cold feeling is enhanced, and the wearer can easily feel the cold feeling.
- the central portion in the vertical direction of the left and right side portions of the mask main body portion 10 has a lower degree of adhesion than the upper and lower end portions, but comes into contact with the wearer's cheek. Therefore, by increasing the basis weight of the endothermic agent 30 in that portion, the wearer can easily feel a feeling of coldness.
- the pleated portion is expanded in the vertical direction at the central portion in the left-right direction of the mask main body portion 10, but the pleated portion is not completely expanded, and the skin-side nonwoven fabric 12 partially overlaps with three layers. .. Therefore, even in the central portion of the mask main body 10 in the left-right direction, the basis weight (g / m 2 ) of the endothermic agent 30 is higher in the central portion in the vertical direction than in the upper and lower end portions. Therefore, the wearer's breath comes into contact with more endothermic agents 30, and the cooling sensation effect is enhanced.
- the upper end portion and the lower end portion of the mask main body portion 10 have a folded portion 101 in which the filter member 11 and the skin-side nonwoven fabric 12 are folded back to the non-skin surface side.
- the heat absorbing agent 30 is arranged on the skin side surface 102A of the non-folded portion 102 that overlaps with the folded portion 101 in the thickness direction, that is, on the skin side surface of the skin-side nonwoven fabric 12.
- the folded portion 101 only the skin-side nonwoven fabric 12 may be folded back toward the non-skin surface side.
- the filter member 11 By folding the upper and lower ends of the mask body 10 toward the non-skin surface side, it is possible to prevent the filter member 11 from covering the skin-side nonwoven fabric 12 from the skin side at the upper and lower ends of the mask body 10. That is, the skin-side nonwoven fabric 12 on which the endothermic agent 30 is arranged can be exposed to the skin side at the upper and lower ends of the mask body 10. Therefore, since the endothermic reaction of the heat absorbing agent 30 occurs at a position close to the wearer, the wearer can easily feel a feeling of coldness. In particular, since the upper and lower end portions of the mask main body portion 10 are more likely to be in close contact with the wearer's skin than the central portion in the vertical direction, the wearer can more easily feel a feeling of coldness.
- the ear hook portion 20 (rubber string) of the mask 1 of the first embodiment is joined to the non-skin side surface of the mask main body portion 10 by the joint portion 16.
- the skin-side nonwoven fabric 12 on which the endothermic agent 30 is arranged can be arranged at a position close to the wearer (it can be exposed to the skin side). Therefore, even at the joint portion 16 of the ear hook portion 20, the endothermic reaction of the heat absorbing agent 30 occurs at a position close to the wearer, so that the wearer can easily feel a feeling of coldness.
- FIG. 4A is a plan view showing a folded state of the disposable mask 2 (hereinafter, also referred to as “mask”) of the second embodiment
- FIG. 4B is a front view of the mask 2 in the unfolded state
- FIG. 5 is a front view of the mask 2 in a worn state
- FIG. 6 is a schematic view of the mask 2 in a worn state as viewed from above.
- a portion of the mask 2 of the second embodiment that is different from the mask 1 of the first embodiment will be mainly described.
- the pair of seat portions 43, 44 are overlapped so that the skin side surfaces of the pair of seat portions 43, 44 face each other, and the joint portions 45 along the edge edges 43a, 44a of the pair of seat portions 43, 44. It is joined by.
- the edges 43a and 44a have a curved shape that is convex toward the outside. Therefore, when the mask 2 in the folded state (planar shape) is unfolded so that the pair of sheet portions 43 and 44 are separated from each other (FIG. 4B), the mask main body portion 40 has a three-dimensional shape (cup shape) in which the skin side surface is recessed. It becomes.
- the ear hook portion 50 of the mask 2 of the second embodiment is an elastic sheet having an opening 51 for hooking the ears.
- the ear hook portion 50 is joined to the skin side surface of the mask main body portion 40 by the joint portion 47.
- the skin side surface of the skin-side nonwoven fabric 12 on which the endothermic agent 30 is arranged is covered with the ear hook portion 50.
- the portion of the skin-side nonwoven fabric 12 to which the ear hook portion 50 is joined has a high degree of adhesion to the wearer's skin due to the stretching force of the ear hook portion 50. Therefore, even if the endothermic agent 30 is covered with the ear hook portion 50, the wearer can feel a feeling of coldness. Further, since the endothermic agent 30 does not directly touch the wearer's skin in the portion where the degree of adhesion to the wearer's skin is high, the irritation to the wearer's skin can be reduced.
- the mask body 10 before use has a rectangular shape that is long in the left-right direction in a plan view (FIGS. 7 and 8) when viewed from the thickness direction.
- the mask main body 10 includes a filter member 11, a skin-side non-woven fabric (nonwoven fabric) 12 provided on the skin surface side of the filter member 11, and a non-skin-side non-woven fabric 12 provided between the filter member 11 and the skin-side non-woven fabric 12. (Second non-woven fabric) 18 and.
- the filter member 11, the skin-side nonwoven fabric 12, and the non-skin-side nonwoven fabric 18 have substantially the same size and substantially the same shape.
- the skin-side nonwoven fabric 12 is a nonwoven fabric to which the endothermic agent 30 is arranged.
- the upper end portion 100X and the lower end portion 100Y of the mask main body portion 10 have a folded portion 101 in which the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18 are folded back to the non-skin surface side, respectively.
- the portion of the mask main body portion 10 that overlaps with the folded portion 101 in the thickness direction is referred to as a non-folded portion 102.
- the folded portion 101 increases the strength of the upper and lower end portions of the mask main body portion 10. Further, the opening of the skin-side non-woven fabric 12, the non-skin-side non-woven fabric 18, and the filter member 11 can be suppressed.
- the mask main body portion 10 has a welding portion 14 for joining and integrating overlapping sheets, for example, a welding portion 14 by heat welding, ultrasonic welding, or the like.
- a welding portion 14 for joining and integrating overlapping sheets, for example, a welding portion 14 by heat welding, ultrasonic welding, or the like.
- a plurality of welded portions 14 for joining the filter member 11, the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18 are provided along the vertical direction.
- a plurality of welded portions 14 for joining the filter member 11, the skin-side nonwoven fabric 12, and the non-skin-side nonwoven fabric 18 are provided along the left-right direction. .
- the pattern of the welded portion 14 is not limited to that illustrated in FIG.
- the overlapping members may be bonded to each other with an adhesive or the like (for example, a hot melt adhesive).
- the shape-retaining member 15 is arranged between the folded non-woven fabrics 18 in the folded portion 101 and the non-folded portion 102. ..
- the ear hook portion 20 is a ring-shaped member extending from both left and right side portions of the mask main body portion 10 when worn.
- the ear hook portion 20 is preferably a stretchable member, and examples thereof include a rubber cord, a stretchable non-woven fabric, and a stretchable film.
- the pair of ear hooks 20 of the mask 3 are made of elastic non-woven fabric, and openings for hanging on the ears are provided in the central portions in the left-right direction and the up-down direction, respectively. 21 is provided.
- ear hooks 20 are provided on both sides in the left-right direction so that the mask 3 before use is fitted into the planar shape of the mask main body 10 when viewed from the skin surface side.
- the wearer's moist breath comes into contact with the endothermic agent 30, and the surface temperature of the mask 3 is lowered by the endothermic reaction, so that the stuffiness in the mask 3 can be improved.
- the endothermic agent 30 and the cold are used to prevent the filter member 11 having a collecting function due to electric charge from reducing the collecting function due to the adhesion of alcohol.
- the sensitizer 80 preferably does not contain alcohol.
- the solvent contained in the endothermic agent 30 and the cooling sensation agent 80 is preferably an aqueous solvent.
- a solution in which a heat-absorbing component is dissolved and dispersed in an alcohol-based solvent is applied to the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18, after the alcohol-based solvent is vaporized in the mask 3 production line, the skin-side nonwoven fabric is used. 12 and the non-woven fabric 18 on the non-skin side may be merged with the filter member 11.
- the endothermic agent 30 is a non-volatile substance and the cooling sensitizer 80 is a volatile substance.
- the volatile cooling sensation 80 makes it easier for the volatile cooling sensation 80 to give a feeling of coldness and exhilaration to the wearer's skin immediately after using the mask 3.
- the non-volatile endothermic agent 30 does not volatilize before the use of the mask 3, it is possible to reduce the possibility that the effect of the endothermic agent 30 will be reduced.
- the time during which the cooling sensation agent 80 exerts the cooling sensation effect and the time during which the endothermic agent 30 exerts the cooling sensation effect can be staggered, the wearer can take a long time immediately after wearing the mask 3. You can feel the cooling effect.
- the volatile cooling sensation agent 80 is a substance that becomes a gas in a general living environment and has a boiling point of less than 100 ° C.
- the endothermic agent 30 and the cooling sensation agent 80 used for the mask 3 are each encapsulated in microcapsules having a urethane resin as a film material, but the present invention is not limited to this. It may have a predetermined strength of disintegration (impact, friction) due to external pressure (physical stimulus). For example, gelatin, gelatin / gum arabic, melamine resin, urea / formalin resin and the like may be used. These resins may be used alone or in combination of two or more kinds of resins. Further, the microcapsules may be those that damage the membrane material by physical or chemical stimuli such as heat, light, and liquid to release the endothermic agent 30 and the cooling sensation agent 80.
- the endothermic agent 30 and the cooling sensation agent 80 are each encapsulated in microcapsules, so that the liquid or solid endothermic agent 30 and the cooling agent 30 directly applied before wearing the mask 3 are cooled. It is possible to reduce the risk that the sensitizer 80 will slip off the mask 3 or a volatile substance such as the cooling sensitizer 80 will be volatilized and lost.
- the wearer first taps the entire area of the mask body 10 lightly. By hitting, a predetermined physical stimulus (pressure) is applied, and the microcapsules of the skin-side non-woven fabric 12 and the non-skin-side non-woven fabric 18 are damaged (collapsed), and the contained heat-absorbing agent 30 and the cold are cooled.
- Each of the sensitive agents 80 is exposed to the outside.
- a wearer who wears the mask 3 in a state where the heat absorbing agent 30 and the cooling sensation agent 80 are exposed can easily obtain the effects of the heat absorbing agent 30 and the cooling sensation agent 80.
- the endothermic agent 30 and the cooling sensation agent 80 are contained in the membrane material of the microcapsules of the same material, the wearer hits the mask 3 before use, and the endothermic agent 30 can be used at once. And the cooling agent 80 can be exposed, and the effect can be easily exerted.
- the cooling sensation agent 80 may be arranged over the entire surface of the non-skin side nonwoven fabric 18, or may be arranged on a part of the flat surface of the non-skin side nonwoven fabric 18. Further, the cooling sensation agent 80 may be arranged on the non-woven fabric 18 on the non-skin side in a constant basis weight (amount per unit area: g / m 2 ), or may vary depending on the region of the nonwoven fabric 12 on the skin side. It may be arranged in quantity.
- the skin-side nonwoven fabric 12 to which the endothermic agent 30 is arranged forms the most skin-side surface of the mask 3.
- the skin-side nonwoven fabric 12 is arranged on the most skin-side surface
- the filter member 11 is arranged on the most non-skin-side surface
- the non-skin side non-woven fabric 18 is provided between the non-woven fabric 12 and the filter member 11.
- both sides of the non-skin side non-woven fabric 18 are filter members.
- the volatilization of the cooling sensation agent 80 can be reduced, and the risk of the effect of the cooling sensation agent 80 being reduced can be reduced.
- the non-skin side surface of the filter member 11 forms at least a part of the non-skin side surface of the mask main body portion 10 (mask 3), and the skin side surface of the skin side non-woven fabric 12 forms the mask main body portion 10 (mask 3). It is preferable that it forms at least a part of the side surface of the skin. By doing so, even in the mask 3 provided with the filter member 11, the number of sheets laminated in the thickness direction in the mask main body 10 can be reduced, and the space inside the mask 3 is less likely to get stuffy. be able to. It is more preferable that the endothermic agent 30 is arranged on a portion of the mask main body 10 (mask 3) that forms at least a part of the skin side surface. Since the endothermic reaction by the endothermic agent 30 provided at a position close to the wearer's skin is likely to occur at a position close to the wearer's skin, the wearer is likely to feel the cold feeling due to the endothermic reaction.
- the configuration of the mask main body 10 is not limited to the above, and for example, another non-skin side of the filter member 11 or the skin side of the skin-side non-woven fabric 12 and between the filter member 11 and the skin-side non-woven fabric 12. Sheets may be arranged. Further, the order of laminating the filter member 11, the skin-side nonwoven fabric 12, and the non-skin-side nonwoven fabric 18 may be different.
- the endothermic agent 30 is applied to the skin side surface of the skin-side nonwoven fabric 12.
- the endothermic agent 30 becomes easier to come into contact with the wearer's breath, the endothermic reaction is promoted, and the cooling sensation effect is enhanced. Further, since the endothermic reaction occurs at a position close to the wearer's skin, the wearer can easily feel that the surface temperature of the mask 3 has decreased.
- the cooling sensation agent 80 may be applied to the skin side surface of the non-skin side nonwoven fabric 18.
- the height of the unevenness of the surface As an index for comparing the smoothness of the non-woven fabric 12, the height of the unevenness of the surface, the standard deviation of the surface roughness of KES (SMD), and the average deviation of the average friction coefficient (MMD) can be exemplified.
- SMD standard deviation of the surface roughness of KES
- MMD average deviation of the average friction coefficient
- the measurement of the average deviation (SMD) of the surface roughness and the average deviation (MMD) of the surface friction coefficient is, for example, manufactured by Kato Tech Co., Ltd., which is generally known as a characteristic value representing the feel of the surface of the non-woven fabric 12. It can be measured based on the characteristic values in KES (Reference: Standardization and analysis of texture evaluation (2nd edition), published by the author, Kio Kawabata, July 10, 1980).
- the sample In the measurement of surface roughness and surface friction, the sample is moved horizontally by 2 cm at a constant speed of 0.1 cm / sec, and the sample is given a uniaxial tension of 20 gf / cm. From the measurement results, the average deviation of the surface roughness (SMD) and the average deviation of the surface friction coefficient (MMD) are obtained.
- SMD surface roughness
- MMD surface friction coefficient
- the ventilation resistance value of the skin-side nonwoven fabric 12 is higher than the ventilation resistance value of the non-skin-side nonwoven fabric 18 (ventilation resistance value of the skin-side nonwoven fabric 12> ventilation resistance value of the non-skin-side nonwoven fabric 18).
- ventilation resistance value of the skin-side nonwoven fabric 12 can be measured by well-known methods. For example, the above-mentioned method for measuring the ventilation resistance value of the filter member 11 can be used.
- the endothermic reaction between the wearer's breath appropriately held on the skin-side nonwoven fabric 12 and the heat absorbing agent 30 is performed. Since it is easy to promote, the endothermic effect and its sustainability can be enhanced. Further, since the risk of the cooling sensation agent 80 flowing out (volatilizing) through the filter member 11 can be reduced, the cooling sensation effect and its sustainability can be enhanced.
- the filter member 11, the skin-side nonwoven fabric 12, and the non-skin-side nonwoven fabric 18 are joined by the welding portion 14 in a folded state at the upper end portion 100X and the lower end portion 100Y over the entire area of the mask main body 10 in the left-right direction. ing.
- the state of the cross section shown in FIG. 9 is maintained even when the mask 3 is worn.
- the skin-side non-woven fabric 12 is overlapped in two layers in the thickness direction by the folded-back portion 101, and the non-skin-side non-woven fabric 18 is in two layers in the thickness direction. overlapping.
- the central portion in the vertical direction has a portion in which the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18 are each stacked in three layers in the thickness direction by pleats.
- the "upper end portion 100X" of the mask main body portion 10 is the upper folded portion 101, and the “lower end portion 100Y” is the lower side.
- the folded-back portion 101, and the "central portion 100Z” is a portion that does not have the folded-back portion 101 and is a portion between the upper end portion 100X and the lower end portion 100Y in the vertical direction.
- the uppermost portion (1 / upper of the upper half) when the length of the upper half of the mask main body 10 in the vertical direction is divided into four equal parts.
- the length portion of 4) is the "upper end portion", and the lowermost portion (1 / lower of the lower half of the lower half) when the length of the lower half of the mask main body 10 in the vertical direction is divided into four equal parts.
- the portion having a length of 4) is the “lower end portion”, and the space between the upper end portion and the lower end portion in the vertical direction is the “central portion”.
- the most one-sided portion (1/4 of the left side of the left half) when the length of one side (left side) of the mask main body 10 in the left-right direction is divided into four equal parts.
- the crease F is formed after the heat absorbing agent 30 is uniformly arranged over the entire surface of the skin-side nonwoven fabric 12.
- the vertical central portion 100Z in which the skin-side nonwoven fabric 12 overlaps in three layers has a basis weight of the heat absorbing agent 30 as compared with the upper and lower end portions 100X and 100Y in which the skin-side nonwoven fabric 12 overlaps in two layers. Since g / m 2 ) is high, the central portion 100Z has a portion having a higher basis weight of the heat absorbing agent 30 than the upper and lower end portions 100X and 100Y.
- the portion H in which the skin-side nonwoven fabric 12 of the mask main body 10 before use overlaps in three layers is a portion in which the endothermic agent 30 has a higher basis weight than the upper and lower end portions 100X and 100Y. It becomes.
- the central portion 100Z in the vertical direction has a higher basis weight (g / m 2 ) of the cooling sensitizer 80 than the upper and lower end portions 100X and 100Y in which the non-woven fabric 18 on the non-skin side overlaps in two layers.
- the 100Z has a portion having a higher basis weight of the cooling sensitizer 80 than the upper and lower end portions 100X and 100Y. Specifically, as shown in FIG.
- both side portions of the mask main body 10 in the left-right direction of the mask 3 having the pleated crease F are folded back by the welded portions 14 at the upper and lower end portions 100X and 100Y of the mask 3 even when the mask 3 is worn.
- the skin-side nonwoven fabric 12 is overlapped in two layers in the thickness direction by the portion 101, and the central portion 100Z in the vertical direction has a portion in which the skin-side nonwoven fabric 12 is overlapped in three layers in the thickness direction by pleats (FIG. 9).
- both sides in the left-right direction are parts that are in contact with or close to the wearer's cheeks.
- the basis weight of the endothermic agent 30 in the central portion 100Z near the nostrils and mouth of the wearer is higher than the basis weight of the endothermic agent 30 in the upper and lower ends 100X and 100Y in the portion in contact with or close to the wearer's cheek.
- the wearer can easily feel the cold feeling of the mask at the central portion 100Z near the nostrils and mouth of the wearer on the cheeks.
- ear hooks 20 are joined to both left and right sides of the mask body 10. Therefore, both sides of the mask body 10 in the left-right direction tend to come into close contact with the wearer's skin (cheeks) due to the stretching force of the ear hooks 20, and the wearer can easily feel the cooling effect of the endothermic agent 30.
- the central portion 100Z has a portion higher than the basis weight of the heat absorbing agent 30 arranged at the upper and lower end portions 100X and 100Y on both side portions of the mask main body portion 10 in the left-right direction.
- the central portion 100Z near the nose and mouth, which is in contact with or close to the wearer's cheek, not only the endothermic agent 30 but also the cooling sensation agent 80 can easily obtain the cooling sensation effect of the mask 3. It becomes easier to feel the cooling effect.
- both ends of the mask main body 10 in the left-right direction are portions that come into contact with the wearer's cheeks and approach the wearer's skin, and are portions where the wearer can easily obtain the cooling sensation effect of the endothermic agent 30.
- the mask body 10 has a portion higher than the central portion in the left-right direction with respect to the basis weight (g / m 2 ) of the endothermic agent 30 at both ends in the left-right direction, so that the wearer has a cooling sensation effect due to the endothermic agent 30. It becomes easier to obtain.
- the mask 3 is provided with a filter member 11, a skin-side non-woven fabric 12, and a non-skin-side non-woven fabric 18, and further, both sides of the mask main body 10 in the left-right direction are provided so as to be sandwiched from the skin side and the non-skin side.
- the microcapsules (the endothermic agent 30 and the cooling sensation) are observed by observing the samples of the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18 with an electron microscope. The presence or absence of the agent 80) can be confirmed.
- the microcapsules are dissolved by immersing the finely cut sample in a specific solvent, and the endothermic agent 30 (component having a cooling sensation effect) and other components (solvent, etc.) are separated from the sample. Extract the mixture.
- the mixture extracted for each sample is component-analyzed using a gas chromatography device.
- the average value of it can be compared as corresponding to the basis weight of the endothermic agent 30 in the upper end portion 100X, the lower end portion 100Y, and the central portion 100Z. Further, when the endothermic agent 80 is contained or not contained in the microcapsules, a sample having a predetermined size is cut out from each of the non-skin side non-woven fabrics 18 to be compared, and the cut sample is cut out. By removing the endothermic agent 30 from the above, calculating the difference in weight before and after removing the endothermic agent 30, and comparing the difference, it is possible to compare as the difference in the basis weight of the endothermic agent 30 of each sample.
- the heat absorbing agent 30 when the heat absorbing agent 30 is encapsulated in microcapsules, samples of a predetermined size are cut out from the comparison target portion of the non-woven fabric 18 on the non-skin side, and the weight of each sample is measured in a dry state. After that, the microcapsules are dropped with a fluid (water flow or wind flow), the weight of each sample in the dry state is measured again, and the difference in weight before and after dropping the microcapsules is calculated. By comparing the difference, it can be compared as the basis weight of the heat absorbing agent 30 of each sample. The same applies to the comparison of the basis weight (g / m 2 ) of the cooling sensation agent 80 at the upper and lower end portions 100X and 100Y and the central portion 100Z in the non-skin side nonwoven fabric 18.
- the vertical length 18X (18Y) of the non-skin side nonwoven fabric 18 is preferably shorter than the vertical length 12X (12Y) of the skin-side nonwoven fabric 12 (18X). ⁇ 12X, 18Y ⁇ 12Y).
- the cooling agent 80 is encapsulated in a microcapsule as in the mask 3
- the non-woven fabric 18 on the skin side is covered with the non-woven fabric 12 on the skin side from the non-woven fabric side on the skin side at the folded portion 101, and the non-woven fabric 12 on the skin side is covered.
- the upper end and the lower end of the mask main body 10 may be folded back toward the skin surface side, or only one of the upper end portion and the lower end portion of the mask main body portion 10 is folded back toward the non-skin surface side. May be good. Further, the endothermic agent 30 may not be arranged on the non-skin side surface of the upper folded portion 101.
- the upper end portion and the lower end portion of the skin side nonwoven fabric 12 and the non-skin side nonwoven fabric 18 are folded back toward the non-skin side to form the folded portion 101, but the present invention is not limited to this. At least one of the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18 may be folded back to the non-skin-side. For example, only the skin-side nonwoven fabric 12 is folded back to the non-skin surface side, and the heat absorbing agent 30 is arranged on the skin side surface 102A (skin-side surface of the skin-side nonwoven fabric 12) of the non-folded portion 102 that overlaps with the folded-back portion 101 in the thickness direction.
- the non-skin side non-woven fabric 18 may be configured not to be folded back to the non-skin side. Further, in addition to the skin-side nonwoven fabric 12 and the non-skin-side nonwoven fabric 18, the filter member 11 may also be folded back. Further, the folded portion 101 is not limited to the portion folded back from the skin surface side to the non-skin surface side, but may be a portion folded back from the non-skin surface side toward the skin surface side. Neither the skin-side nonwoven fabric 12 nor the non-skin-side nonwoven fabric 18 may be configured so as not to be folded back toward the non-skin surface side or toward the skin surface side.
- the mask 3 preferably has a shape-retaining member 15.
- the shape-retaining member 15 makes it difficult for a gap to be created between the mask 3 and the wearer (face), and the degree of sealing of the space inside the mask 3 is increased. Therefore, since the heat absorbing agent 30 and the cooling sensation agent 80 can be easily kept in the space of the mask 3, the cooling sensation effect of the heat absorbing agent 30 and the cooling sensation agent 80 can be enhanced, and the wearer's breath and the cooling sensation agent 30 can be enhanced. The contact time and circulation of the skin can be increased, and the cooling sensation effect and its sustainability can be enhanced.
- the mask 3 may not have the shape-retaining member 15.
- the outer peripheral edge of the filter member 11 coincides with the outer peripheral edge of the skin-side non-woven fabric 12 and the non-skin-side non-woven fabric 18.
- the left end 11c of the filter member 11, the left end 12c of the skin-side nonwoven fabric 12, and the left end 18c of the non-skin-side nonwoven fabric 18 coincide with each other, and the right end 11d of the filter member 11 And the right end 12d of the skin-side non-woven fabric 12 and the right end 18d of the non-skin-side non-woven fabric 18 coincide with each other. Further, as shown in FIG.
- the filter member 11 can be arranged over a wide range of the plane of the mask main body 10, and a collecting effect can be obtained.
- the present invention is not limited to the above, and the outer peripheral edge of the filter member 11, the outer peripheral edge of the skin-side nonwoven fabric 12, and the outer peripheral edge of the non-skin-side nonwoven fabric 18 may be misaligned.
- the filter member 11 has a lower basis weight of the endothermic agent 30 and the cooling sensation agent 80 than the skin-side nonwoven fabric 12, and more preferably, the endothermic agent 30 and the cooling sensation agent 80 are contained in the filter member 11. It should not be arranged. It is possible to prevent the collecting function of the filter member 11 from being reduced due to the adhesion of the endothermic agent 30 and the cooling sensation agent 80 to the filter member 11.
- the mask 3 of the present embodiment has a mask main body portion 10 in which the filter member 11, the skin-side nonwoven fabric 12, and the non-skin-side nonwoven fabric 18 are joined in the thickness direction, but the present invention is not limited to this.
- the filter member 11, the skin-side non-woven fabric 12, the non-skin-side non-woven fabric 18, and other members may be stacked in the thickness direction.
- the mask of the present invention may not include a scent generator that dissolves with moisture to generate a scent. Even if the mask does not include a scent generator that dissolves in water to generate a scent, the mask is provided with a non-woven fabric to which an endothermic agent is arranged, so that the wearer can feel the cool feeling of the mask.
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Abstract
Description
しかし、保湿剤による冷感は、保湿剤の温度と着用者の体温との温度差による冷感である。そのため、外気温と同程度の温度となる保湿剤による接触冷感では、冷感効果が低く、マスク内の蒸れを改善するには不十分である。また、通常、マスクの外周端は着用者の肌に密着しやすいが、マスクの中央部では着用者との間に空間が生じやすい。そのため、着用者の息により蒸れやすいマスクの中央部において、着用者の肌は保湿剤と接触し難く、着用者は冷感を実感し難い。
本発明の他の特徴については、本明細書及び添付図面の記載により明らかにする。
マスク本体部と、着用者の耳に掛けられる耳掛け部と、を有する使い捨てマスクであって、前記マスク本体部は、ウィルス飛沫及び細菌飛沫の少なくとも一方を捕集するフィルタ部材と、前記フィルタ部材の肌面側に設けられ、かつ、吸熱剤が配された不織布と、を有する。
上下方向及び左右方向を有し、
前記上下方向の中央部において、前記フィルタ部材及び前記不織布は、前記左右方向に沿う折り目によってプリーツ状に折り畳まれており、
前記マスク本体部の前記左右方向の両側部では、前記フィルタ部材及び前記不織布が前記プリーツ状に折り畳まれた状態で接合されており、かつ、前記上下方向の中央部は、前記上下方向の端部より、前記マスク本体部の前記吸熱剤の坪量が高い部分を有する。
図1は、第1実施形態の使い捨てマスク1(以下「マスク」とも呼ぶ)の平面図である。図2は、図1のI-I線におけるマスク1の断面図である。図3は、マスク1の着用状態を示す図である。
マスク1は、少なくとも着用者の口元と鼻孔を覆うことができるマスク本体部10と、着用者の耳に掛けられる耳掛け部20を有する。マスク本体部10は、上下方向、左右方向、及び厚さ方向を有する。厚さ方向において、着用者の顔面と対向する内側を肌側又は肌面側とも呼び、その反対側である外側を非肌側又は非肌面側とも呼ぶ。
本実施形態のマスク1は、洗濯しながら繰り返し使用されるガーゼ等で形成されたマスクとは異なり、ウィルス飛沫や細菌飛沫を捕集するフィルタ部材11を備える。そのため、洗濯によってフィルタ部材11の捕集効果が軽減してしまうことを防止するために、本実施形態のマスク1は使い捨て用として使用されることを想定したマスクである。
図4Aは、第2実施形態の使い捨てマスク2(以下「マスク」とも呼ぶ)の折り畳み状態を示す平面図であり、図4Bは、展開状態のマスク2の正面図である。図5は、着用状態のマスク2の正面図である。図6は、着用状態のマスク2を上から見た概略図である。以下、第2実施形態のマスク2のうち第1実施形態のマスク1と異なる部分について主に説明する。
図7は、第3実施形態の使い捨てマスク3の非肌側から見た平面図である。図8は、マスク3の肌側から見た平面図である。図9は、図7のI-I線におけるマスク本体部10の断面図である。なお、図9は、溶着部14を省略して示している。各図は、使用前のマスク3を示している。第3実施形態の構成のいくつかは、第1実施形態にも適用可能である。
マスク3について、第1実施形態のマスク1の構成と共通する部分は、符号等を同じとし、マスク3の基本構成の詳細な説明は省略する。マスク1と同様に、マスク3は、マスク本体部10と耳掛け部20を有する。マスク本体部10は、上下方向、左右方向、及び厚さ方向を有する。厚さ方向において、着用者の顔面と対向する内側を肌側又は肌面側とも呼び、その反対側である外側を非肌側又は非肌面側とも呼ぶ。
本実施形態のマスク3は、吸熱剤30を備える肌側不織布12と、冷感剤80を備える非肌側不織布18とが、厚さ方向に隣接しており、非肌側不織布18が、肌側不織布12の非肌面側と対向するように設けられている。吸熱剤30は、第1実施例と同様に、水と反応して吸熱反応を起こす剤であり、冷感剤80は、着用者の肌に触れると着用者に冷感や清涼感を与える剤である。
(1)まず、マスク3から測定対象の肌側不織布12を取り出し、上端部100X、下端部100Y、中央部100Zに分離する。分離した上端部100X、下端部100Y、中央部100Zを、さらに所定のサイズ(例えば上下方向×左右方向=20mm×40mm等)の細かいサンプルにカットする。
(2)次に、細かくカットしたサンプルを特定の溶媒に浸漬する等してマイクロカプセルを溶かして、サンプルから、吸熱剤30(冷感効果のある成分)と、その他の成分(溶媒等)の混合物を抽出する。
(3)サンプル毎に抽出した混合物を、ガスクロマトグラフィー装置を用いて成分解析する。そして、サンプル毎に、吸熱剤(冷感効果のある成分)のピーク値と、その他の成分(溶媒等)のピーク値とを取得し、その他の成分のピーク値に対する吸熱剤のピーク値の割合(吸熱剤のピーク値/その他の成分のピーク値)を算出する。その割合が、サンプルに設けられていた吸熱剤の量に相当するものとする。
(4)最後に、上端部100X、下端部100Y、中央部100Zを構成するそれぞれの複数のサンプルの吸熱剤の割合(吸熱剤のピーク値/その他の成分のピーク値≒吸熱剤30の量)の平均値を算出することで、上端部100X、下端部100Y、中央部100Zにおける吸熱剤30の坪量に相当するものとして、比較することができる。
また、吸熱剤80がマイクロカプセルに内包されている場合、又は内包されていない場合において、非肌側不織布18のうち、比較対象となる部分からそれぞれ所定の大きさのサンプルを切り出し、切り出したサンプルから吸熱剤30を取り除いて、吸熱剤30を取り除く前後の重さの差を算出し、その差を比較することで、各サンプルの吸熱剤30の坪量の差として比較することができる。例えば、吸熱剤30がマイクロカプセルに内包されている場合には、非肌側不織布18の比較対象となる部分からそれぞれ所定の大きさのサンプルを切り出し、各サンプルについて、乾燥状態で重さを測定した後、流体(水流や風流)でマイクロカプセルを落下させ、再度、乾燥状態とした状態の各サンプルの重さを測定し、マイクロカプセルを落下させる前と後の重さの差を算出し、その差を比較することで、各サンプルの吸熱剤30の坪量として比較することができる。
なお、非肌側不織布18における上下端部100X、100Y、中央部100Zの冷感剤80の坪量(g/m2)の比較も同様である。
以上、本発明の実施形態について説明したが、上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。また、本発明は、その趣旨を逸脱することなく、変更や改良され得るとともに、本発明にはその等価物が含まれるのはいうまでもない。
10 マスク本体部、11、フィルタ部材、12 肌側不織布(不織布)、
13 サイドシート、14 溶着部、15 形状保持部材、16 接合部、
18 非肌側不織布(第2不織布)、
20 耳掛け部、
30 吸熱剤、
40 マスク本体部、41 フィルタ部材、42 肌側不織布(不織布)、
43、44 一対のシート部、45 接合部、46 形状保持部材、
47 接合部、48 高坪量部、
50 耳掛け部、
80 冷感剤
Claims (24)
- マスク本体部と、着用者の耳に掛けられる耳掛け部と、を有する使い捨てマスクであって、
前記マスク本体部は、
ウィルス飛沫及び細菌飛沫の少なくとも一方を捕集するフィルタ部材と、
前記フィルタ部材の肌面側に設けられ、かつ、吸熱剤が配された不織布と、
を有することを特徴とする使い捨てマスク。 - 請求項1に記載の使い捨てマスクであって、
前記吸熱剤は、糖アルコール類、及び、糖類のうちの何れか1つを含むことを特徴とする使い捨てマスク。 - 請求項1又は2に記載の使い捨てマスクであって、
前記フィルタ部材の非肌側面は、前記マスク本体部の非肌側面の少なくとも一部を形成しており、
前記不織布の肌側面は、前記マスク本体部の肌側面の少なくとも一部を形成していることを特徴とする使い捨てマスク。 - 請求項3に記載の使い捨てマスクであって、
前記吸熱剤は、前記マスク本体部の肌側面の少なくとも一部を形成する部分に配されていることを特徴とする使い捨てマスク。 - 請求項1から4の何れか1項に記載の使い捨てマスクであって、
前記フィルタ部材は、ポリオレフィン系繊維からなる不織布が誘電分極されたシートであり、
前記吸熱剤は、アルコールを含まないことを特徴とする使い捨てマスク。 - 請求項1から5の何れか1項に記載の使い捨てマスクであって、
前記吸熱剤は、不揮発性であることを特徴とする使い捨てマスク。 - 請求項1から6の何れか1項に記載の使い捨てマスクであって、
前記フィルタ部材の外周端と、前記不織布の外周端とが一致していることを特徴とする使い捨てマスク。 - 請求項1から7の何れか1項に記載の使い捨てマスクであって、
前記フィルタ部材は、前記不織布に比べて、前記吸熱剤の坪量が低いことを特徴とする使い捨てマスク。 - 請求項8に記載の使い捨てマスクであって、
前記フィルタ部材には前記吸熱剤が配されていないことを特徴とする使い捨てマスク。 - 請求項1から9の何れか1項に記載の使い捨てマスクであって、
前記マスク本体部は、
上下方向及び左右方向を有し、
前記上下方向の中央部において、前記フィルタ部材及び前記不織布は、前記左右方向に沿う折り目によってプリーツ状に折り畳まれており、
前記マスク本体部の前記左右方向の両側部では、前記フィルタ部材及び前記不織布が前記プリーツ状に折り畳まれた状態で接合されており、かつ、前記上下方向の中央部は、前記上下方向の端部より、前記マスク本体部の前記吸熱剤の坪量が高い部分を有することを特徴とする使い捨てマスク。 - 請求項1から8の何れか1項に記載の使い捨てマスクであって、
前記マスク本体部は、
上下方向及び左右方向を有し、
前記上下方向の中央部において、前記フィルタ部材及び前記不織布は、前記左右方向に沿う折り目によってプリーツ状に折り畳まれており、
前記マスク本体部の前記左右方向の両側部では、前記フィルタ部材及び前記不織布が前記プリーツ状に折り畳まれた状態で接合されており、
前記マスク本体部の前記左右方向の両側部では、前記上下方向の端部に比べて、前記上下方向の中央部の方が、前記吸熱剤の坪量が高いことを特徴とする使い捨てマスク。 - 請求項1から11の何れか1項に記載の使い捨てマスクであって、
前記マスク本体部は、
上下方向及び左右方向を有し、
前記上下方向の中央部において、前記フィルタ部材及び前記不織布は、前記左右方向に沿う折り目によってプリーツ状に折り畳まれており、
前記マスク本体部の前記左右方向の両側部では、前記フィルタ部材及び前記不織布が前記プリーツ状に折り畳まれた状態で接合されており、
前記吸熱剤は、前記マスク本体部の前記不織布の全域に配されており 、
前記上下方向の中央部は、前記上下方向の端部より、前記マスク本体部の前記吸熱剤の坪量が高い部分を有することを特徴とする使い捨てマスク。 - 請求項1から12の何れか1項に記載の使い捨てマスクであって、
前記マスク本体部は、上下方向、左右方向、及び厚さ方向を有し、
前記マスク本体部の上端部及び下端部の少なくとも一方は、前記不織布が非肌面側に折り返された折返し部を有し、
前記厚さ方向に前記折返し部と重なる前記マスク本体部の非折返し部において、前記不織布の肌側面に前記吸熱剤が配されていることを特徴とする使い捨てマスク。 - 請求項13に記載の使い捨てマスクであって、
前記マスク本体部の前記上端部は、前記折返し部を有し、当該折返し部における前記不織布の非肌側面に前記吸熱剤が配されていることを特徴とする使い捨てマスク。 - 請求項1から9の何れか1項に記載の使い捨てマスクであって、
前記マスク本体部は、着用者の右顔面及び左顔面をそれぞれ覆う一対のシート部と、前記一対のシート部を接合する接合部を有し、
前記使い捨てマスクの展開状態において、
前記マスク本体部は、上下方向、及び、左右方向を有し、
前記マスク本体部の前記左右方向の中央部は、前記左右方向の両端部に比べて前記吸熱剤の坪量が高い高坪量部を有することを特徴とする使い捨てマスク。 - 請求項15に記載の使い捨てマスクであって、
前記高坪量部は、前記マスク本体部の上端から下端まで前記上下方向に連続して配されていることを特徴とする使い捨てマスク。 - 請求項1から16の何れか1項に記載の使い捨てマスクであって、
前記耳掛け部は、前記マスク本体部の肌側面に接合されていることを特徴とする使い捨てマスク。 - 請求項1から17の何れか1項に記載の使い捨てマスクであって、
前記吸熱剤は、前記不織布を構成する繊維の少なくとも一部に練りこまれていることを特徴とする使い捨てマスク。 - 請求項1から17の何れか1項に記載の使い捨てマスクであって、
前記吸熱剤は、前記不織布の肌側面に塗布されていることを特徴とする使い捨てマスク。 - 請求項1から19の何れか1項に記載の使い捨てマスクであって、
前記不織布は、親水性繊維を含むことを特徴とする使い捨てマスク。 - 請求項1から20の何れか1項に記載の使い捨てマスクであって、
前記フィルタ部材の通気抵抗値は、0.45kPa・s/m以下であることを特徴とする使い捨てマスク。 - 請求項1から21のいずれか1項に記載の使い捨てマスクであって、
前記マスク本体部は、
上下方向及び左右方向を有し、
前記左右方向の両側部は、前記マスク本体部の前記吸熱剤の坪量が、前記左右方向の中央部より高い部分を有することを特徴とする使い捨てマスク。 - 請求項1から22のいずれか1項に記載の使い捨てマスクであって、
前記マスク本体部は、前記不織布の厚さ方向の一方側又は他方側の面と対向するように設けられた第2不織布を有し、
前記第2不織布に、冷感剤が配されていることを特徴とする使い捨てマスク。 - 請求項1から23のいずれか1項に記載の使い捨てマスクであって、
前記不織布は、一方側の面より平滑な他方側の面を有し、
前記他方側の面が、前記マスク本体部の肌側面の少なくとも一部を形成し、
前記吸熱剤は、少なくとも前記他方側の面に設けられていることを特徴とする使い捨てマスク。
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