WO2021186580A1 - Mask filter sheet and activated carbon filter sheet - Google Patents

Mask filter sheet and activated carbon filter sheet Download PDF

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Publication number
WO2021186580A1
WO2021186580A1 PCT/JP2020/011797 JP2020011797W WO2021186580A1 WO 2021186580 A1 WO2021186580 A1 WO 2021186580A1 JP 2020011797 W JP2020011797 W JP 2020011797W WO 2021186580 A1 WO2021186580 A1 WO 2021186580A1
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Prior art keywords
activated carbon
sheet
filter sheet
fine particle
spherical fine
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PCT/JP2020/011797
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French (fr)
Japanese (ja)
Inventor
大木　達彦
明美 大橋
広和 宮島
尚樹 黒川
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株式会社大木工藝
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Priority to PCT/JP2020/011797 priority Critical patent/WO2021186580A1/en
Publication of WO2021186580A1 publication Critical patent/WO2021186580A1/en

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    • 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

Definitions

  • the present invention relates to a mask filter sheet and an activated carbon filter sheet that can effectively prevent the invasion of viruses and bacteria from the mouth and nose.
  • Patent Document 1 not only captures the virus with the mask body, but also inactivates the virus with an antiviral agent. Therefore, there is almost no risk of the virus spreading from the used mask.
  • the present invention has been proposed in consideration of such circumstances, and an object thereof is to be able to kill or collect viruses and bacteria, and to maintain the effect in a hygienic state. It is an object of the present invention to provide a filter sheet for a mask and an activated carbon filter sheet.
  • the mask filter sheet of the present invention includes an activated carbon filter sheet made of a base material sheet made of fibers and containing porous spherical fine particle activated carbon having a particle size of 150 to 600 ⁇ m. It is characterized by including an enzyme filter sheet in which a lytic enzyme is contained in a fiber sheet.
  • the activated carbon filter sheet of the present invention is an activated carbon filter sheet used as an inner sheet of a mask by superimposing a bacteriolytic enzyme on an enzyme filter sheet made of a fiber sheet, and is used as a base sheet made of fibers. It is characterized by containing a porous spherical fine particle activated carbon having a particle size of 150 to 600 ⁇ m.
  • the mask filter sheet of the present invention has the above-mentioned structure, viruses and bacteria can be killed or collected, and the effect can be maintained in a hygienic state.
  • the activated carbon filter sheet of the present invention Since the activated carbon filter sheet of the present invention has the above-mentioned structure, it kills viruses and bacteria when it is used as an inner sheet of a mask by superimposing a lytic enzyme on an enzyme filter sheet contained in a fiber sheet. Alternatively, it can be collected and its effect can be sustained.
  • FIG. 1 It is explanatory drawing of the mask filter sheet which concerns on one Embodiment of this invention, and the activated carbon filter sheet used therein, (a) is a schematic diagram of a mask main body, (b) is a schematic diagram which shows the usage mode of a mask filter sheet. Is. It is a schematic perspective view which shows the usage mode of the filter sheet for a mask which concerns on other embodiment of this invention, and the activated carbon filter sheet used therein. It is a schematic diagram which shows the usage mode of the filter sheet for a mask which concerns on still another Embodiment of this invention, and the activated carbon filter sheet used therein. It is a schematic diagram which shows the bactericidal mechanism of a lytic enzyme.
  • (A), (b) and (c) are schematic vertical sectional views showing three examples of activated carbon filter sheets. It is a schematic enlarged cross-sectional view of the spherical fine particle activated carbon.
  • (A) is an enlarged photograph of an example used in the deodorization test of spherical fine particle activated carbon
  • (b) is an enlarged photograph of Comparative Example 1 in the same test
  • (c) is an enlarged photograph of Comparative Example 2 in the same test.
  • (A) is a result table for methyl mercaptan
  • (b) is a result table for hydrogen sulfide.
  • (A) shows the result (gas concentration) of the deodorization test, and is the result table regarding acetaldehyde.
  • (B) is a graph showing the gas concentration of acetaldehyde for each elapsed time.
  • the mask filter sheet 15 contains an activated carbon filter sheet 30 in which a base sheet 31 contains a porous spherical fine particle activated carbon 33 having a particle size of 150 to 600 ⁇ m, and a bacteriolytic enzyme 22 in the fiber sheet 21. It is configured to include the enzyme filter sheet 20 as a particle.
  • the mask filter sheet 15 is a sheet set used for the mask 1, and includes an enzyme filter sheet 20 and an activated carbon filter sheet 30 as described above.
  • the enzyme filter sheet 20 may be a rectangular sheet arranged inside the mask body 10 as shown in FIGS. 1 and 2, or may be formed on the sheet portion 11 of the mask body 10 as shown in FIG. It may be integrated.
  • the one in FIG. 1 includes a mask body 10, an enzyme filter sheet 20, and an activated carbon filter sheet 30 in this order from the outside. As shown in FIG. 1A, it includes a sheet portion 11 having a substantially rectangular outer shape in an unused state, and ear hook portions 13 attached to both ends of the sheet portion 11.
  • the sheet portion 11 of the mask main body 10 includes the enzyme filter sheet 20 and is integrally formed, and the activated carbon filter sheet 30 is arranged inside the sheet portion 11.
  • the entire sheet portion 11 may be composed of the enzyme filter sheet 20, or the enzyme filter sheet 20 may be arranged at the center of the sheet portion 11, for example.
  • a plurality of folds 11a extending in the lateral direction are formed in the seat portion 11 in the vertical direction. While it is substantially rectangular in the unused state (see FIG. 1 (a)), it is a three-dimensional object that covers the mouth and nose by spreading the folds 11a up and down when it is used (see FIGS. 1 (b) and 3). Shape.
  • the one of FIG. 3 has a mask main body 10, a pocket 12 that opens upward on the inner surface side of the sheet portion 11, an enzyme filter sheet 20 that is attached to the pocket 12, and is arranged on the outer surface side of the pocket 12.
  • the activated carbon filter sheet 30 is provided.
  • the seat portion 11 does not have folds 11a, and a flexible pocket 12 is formed on the inner surface side thereof.
  • Such a sheet portion 11 may be, for example, a three-dimensional one in which a frame is arranged on a frame or the like so that the shape does not change.
  • the enzyme filter sheet 20 is inserted into the pocket 12 with the pocket 12 opened (pulled out) and the upper side is opened, the pocket 12 is closed (superposed on the sheet portion 11), and the pocket 12 is opened.
  • the activated carbon filter sheet 30 is arranged on the inner surface side so that the mask 1 can be used.
  • both the enzyme filter sheet 20 and the activated carbon filter sheet 30 are easy to replace, but since the enzyme filter sheet 20 is arranged in the pocket 12, only the activated carbon filter sheet 30 is easier to replace.
  • the sheet portion 11 is made of a fibrous sheet, and may be formed of, for example, a cellulose-based non-woven fabric sheet, another non-woven fabric sheet, a paper sheet, or other breathable material.
  • the ear hook portion 13 may be made of a flexible, elastic cloth, rubber or the like.
  • the enzyme filter sheet 20 is made of a breathable fiber sheet 21 capable of collecting pollen, dust, dust, bacteria 40 (see FIG. 4), viruses, etc., and the fibers of the fiber sheet 21 are lysed by the enzyme 22 (FIGS. 1 to 1). (Not shown in FIG. 3) is fixed. Nonwoven fabric or gauze is used as the base material of the fiber sheet 21.
  • the lytic enzyme 22 has a function of inactivating (killing) microorganisms such as bacteria 40 and viruses by the bactericidal mechanism shown in FIG. Specifically, the lytic enzyme 22 collects bacteria 40 and viruses, dissolves the cell walls 41 and virus shells (envelopes) of bacteria 40 formed of proteins, and ruptures the cell walls 41 and shells with holes. Then, the main body 42 inside is killed.
  • the lytic enzyme 22 is not consumed due to the lytic action. Therefore, the enzyme filter sheet 20 can be used semi-permanently unless the fiber sheet 21 is deteriorated or the lytic enzyme 22 is separated from the fiber sheet 21.
  • pollen, dust, and dust that have passed through the sheet portion 11 of the mask body 10 are mostly collected by the enzyme filter sheet 20 although it depends on the roughness of the fiber sheet 21 of the enzyme filter sheet 20.
  • the activated carbon filter sheet 30 uses a breathable fiber filter such as a non-woven fabric, like the sheet portion 11 of the mask body 10 and the fiber sheet 21 of the enzyme filter sheet 20.
  • the base material sheet 31 contains a porous spherical fine particle activated carbon 33. It is desirable that the base sheet 31 has a texture so that the spherical fine particle activated carbon 33 inside does not come out.
  • the activated carbon filter sheet 30 is superposed on the enzyme filter sheet 20 and used as an inner sheet of the mask 1.
  • the activated carbon filter sheet 30 includes a base material sheet 31 made of fibers, and the base material sheet 31 contains porous spherical fine particle activated carbon 33 having a particle size of 150 to 600 ⁇ m.
  • the base sheet 31 has a plurality of layers (two layers in the example) of the sheet layers 32, and a plurality of spherical fine particle activated carbons 33 are arranged between the sheet layers 32. It should be said. As shown in the illustrated example, the spherical fine particle activated carbon 33 may enter the inside of the sheet layer 32 so as to be entangled with the fibers of the sheet layer 32.
  • the base sheet 31 is formed as one sheet layer 32, and a plurality of spherical fine particle activated carbons 33 are entwined with the fibers inside the one sheet layer 32. It may be arranged.
  • the base sheet 31 having a surface pattern by printing may be used.
  • the dye for the pattern and the spherical fine particle activated carbon 33 are mixed with the printing paste to form a paste, which is applied to the surface of the sheet layer 32, and the spherical fine particle activated carbon 33 is applied to the fibers of the sheet layer 32. It may be entwined with.
  • the spherical fine particle activated carbon 33 may be mixed with various adhesives or glues and applied to the surface to fix the spherical fine particle activated carbon 33 to the sheet layer 32.
  • the base material sheet 31 has a plurality of layers (two layers in the example) of the sheet layer 32, and a plurality of spherical fine particle activated carbons 33 are contained in the resin layer 34, and the resin thereof is contained.
  • the layer 34 may be arranged between the sheet layers 32.
  • the resin layer 34 is thermally cured to be in a cracked state, and a ventilation path (not shown) is formed by the cracks.
  • the spherical fine particle activated carbon 33 in a state of being immersed in the ionomer resin solution is sandwiched between two sheet layers 32 (sheet materials), the solution is cured at 40 degrees, and the spherical fine particle activated carbon is transferred to the sheet material 32. It may be formed by fixing the particles in a state of being sandwiched between them.
  • the cured product containing the spherical fine particle activated carbon 33 inside becomes a cracked state, but the crack (crevice) becomes a gas flow passage and the sheet material 32 becomes a flow passage.
  • the surface of the spherical fine particle activated carbon 33 can come into contact with the outside air through the interfiber gap (not shown). Since the cured resin layer 34 is flexible, it easily fits into the flexible mask 1.
  • such spherical fine particle activated carbon 33 has a substantially spherical shape. Inside the spherical fine particle activated carbon 33, a plurality of pores 35 that open on the surface of the sphere are formed. These hole portions 35 have a plurality of macro holes 35a formed from the surface of the sphere toward the inside of the sphere, and each macro hole 35a has a plurality of macro holes 35a as a trunk so as to branch from the macro holes 35a. Micropores 35b are formed. The hole diameter dimension of the micro hole 35b is smaller than the diameter of the macro hole 35a.
  • the spherical fine particle activated carbon 33 is superporous because a plurality of pores 35 having such a structure are provided on the surface of the sphere.
  • Such spherical fine particle activated carbon 33 has an odor adsorption effect due to being superporous. Further, since the spherical fine particle activated carbon 33 is a carbon material, it also has an action of radiating far infrared rays.
  • the spherical fine particle activated carbon 33 one having a carbon purity of 90% or more may be used, and preferably 99.9% or more may be used. Further, those having a sphere diameter of 150 ⁇ m to 600 ⁇ m may be used, and more preferably 180 ⁇ m to 500 ⁇ m may be used. Further, those having a pore volume of 0.9 to 2.0 cm 3 / g and a pore peak diameter of about 0.5 to 2.0 nm may be used.
  • the pore volume is the sum of the volumes in the pores of all the macropores 35a and the micropores 35b formed in the spherical fine particle activated carbon 33, and the pore peak diameter is in the pore portion 35. It refers to the largest opening diameter on the surface of the spherical fine particle activated carbon 33.
  • the spherical fine particle activated carbon 33 is composed of carbonized phenol resin and has a specific surface area of 1000 m 2 / g or more.
  • the specific surface area is the total of the area of the spherical surface of the spherical fine particle activated carbon 33 and the area of the surfaces forming the macropores 35a and the micropores 35b of all the pores 35.
  • the spherical fine particle activated carbon 33 may be produced, for example, as follows. First, a phenol resin or the like as a raw material is crushed, and crushed pieces are processed to obtain a plurality of spheres. After carbonizing this sphere at a high temperature (for example, about 700 to 800 ° C.), the processed product is reacted with steam at a high temperature (for example, about 900 to 1000 ° C.) (steam activation). A porous structure is formed by this steam activation. Then, purification is performed to remove impurities and sieving to obtain spherical fine particle activated carbon 33 in which a large number of pores 35 having a desired particle size and desired macropores 35a and micropores 35b are formed.
  • the activation is not limited to steam activation, and may be performed using carbon dioxide, air, or the like. Further, alkali activation using KOH or the like may be performed. Further, the raw material of the spherical fine particle activated carbon 33 is not limited to the phenol resin, and may be coconut shell charcoal, lime, or the like.
  • Such spherical fine particle activated carbon 33 is used for the mask 1, it is desirable that it is sterilized by various sterilization methods such as high temperature high pressure sterilization, high temperature sterilization, and pasteurization.
  • spherical fine particle activated carbon 33 for example, B's Wiper (registered trademark) or one manufactured by the production method disclosed in Japanese Patent No. 4266711 and Japanese Patent No. 4308740 can be preferably used.
  • the spherical fine particle activated carbon 33 it is desirable to use one that does not crack and shatter even when a strong pressure or impact is applied, and the pigment or the like does not adhere to the skin or the like. Further, it is desirable that the pH value is around 7 (neutral). By using such spherical fine particle activated carbon 33, the activated carbon filter sheet 30 can be safely used in a more desirable state of being in contact with the skin.
  • the inorganic antibacterial agent 36a may be contained in the pores 35 of the spherical fine particle activated carbon 33.
  • a metal or a metal ion having an antibacterial action may be supported on an inorganic carrier.
  • an inorganic antibacterial agent 36a of this type for example, a silver-based inorganic antibacterial agent 36a (for example, Novalon (registered trademark)) which is a powder may be used.
  • the inorganic antibacterial agent 36a may be dissolved or dispersed in a solution so as to impregnate the inside of the pores 35 of the spherical fine particle activated carbon 33.
  • the activated carbon filter sheet 30 can be made to have an antibacterial effect such that germs are difficult to propagate, and deterioration of the activated carbon filter sheet 30 can be prevented.
  • the hole 35 may contain a deodorant 36b.
  • a deodorant 36b one having an action of oxidizing an odorous component with active oxygen to change it into another substance and decomposing the odorous component may be used.
  • DEORASE registered trademark
  • This DEORASE does not show a decrease in deodorizing effect due to desorption of the central metal under alkaline conditions, and causes a cycle reaction similar to an enzyme in the living body. Compared to the agent, the deodorant effect lasts much longer. Further, it is generally known that the reactivity of the cycle reaction is lowered by the moisture due to moisture absorption, but in DEORASE (registered trademark), it is known that the reactivity is improved by moisture absorption.
  • an artificial enzyme such as iron-based phthalocyanine may be used.
  • the sweat and sebum of the skin absorbed in the activated carbon filter sheet 30 are decomposed by various germs existing on the skin in contact with each other, so that a bad odor, which is a so-called decomposed odor, is generated.
  • the deodorant 36b as described above, sweat, sebum and the like are decomposed by this, so that there is no object to be decomposed by various germs, and the generation of foul odor is suppressed.
  • the hole 35 may contain the fragrance 36c.
  • the fragrance 36c may be a substance containing various odorous components such as citrus fruits, or an aroma oil or the like may be used. Further, it may be made of a natural material or artificially synthesized.
  • the spherical fine particle activated carbon 33 When functional substances such as the above-mentioned inorganic antibacterial agent 36a, deodorant 36b, and fragrance 36c are contained in the spherical fine particle activated carbon 33, they function in the resin solution layer such as the ionomer resin solution in which the spherical fine particle activated carbon 33 is immersed.
  • the sex substance may be dissolved or dispersed so as to be adsorbed on the spherical fine particle activated carbon 33. Since the spherical fine particle activated carbon 33 is ultraporous, these functional substances can be easily contained in the pores 35 of the spherical fine particle activated carbon 33 by this method.
  • the mask filter sheet 15 includes the enzyme filter sheet 20 and the activated carbon filter sheet 30, the lytic enzyme 22 of the enzyme filter sheet 20 kills bacteria 40 (see FIG. 4) and viruses. It is possible to suppress the generation of various odors due to the odor adsorption effect of the spherical fine particle activated carbon 33 of the activated carbon filter sheet 30. In particular, if the spherical fine particle activated carbon 33 contains the inorganic antibacterial agent 36a, the generation of malodor can be further reduced.
  • the deodorization test was carried out on the spherical fine particle activated carbon 33 used in the activated carbon filter sheet 30 of the mask 1 according to the above three types of embodiments as shown below.
  • Examples and Comparative Examples 1 and 2 were placed in an odor bag, heat-sealed, and then filled with 9 L of air, and a gas to be tested was added so as to have a set gas concentration (see test conditions). This was allowed to stand, and the gas concentration in the bag was measured using a gas detector tube for each elapsed time. In addition, a blank test was also conducted in which the same operation was performed without putting Examples and Comparative Examples in the odor bag.
  • the spherical fine particle activated carbon 33 does not contain functional substances such as an inorganic antibacterial agent 36a, a deodorant 36b, and a fragrance 36c.
  • FIG. 8A shows the result of the deodorization test for methyl mercaptan (gas concentration)
  • FIG. 8B shows the result of the deodorization test for hydrogen sulfide (gas concentration)
  • FIG. 9A shows the deodorization test for acetaldehyde.
  • the result (gas concentration) is shown.
  • FIG. 9B is a graph showing the gas concentration after the lapse of time in the example test, the comparative examples 1 and 2, and the blank test regarding the deodorization test for acetaldehyde.
  • the gas concentration of the example after 10 minutes had passed was 1/5 of the gas concentration of Comparative Example 1 and 1/10 of the gas concentration of Comparative Example 2 (same as the blank test).
  • the gas concentration of the example after 30 minutes was 1/8 of the gas concentration of Comparative Example 1 and 1/20 of the gas concentration of Comparative Example 2 (same as the blank test).
  • the gas concentration of the examples after 60 minutes was less than 1/6 of the gas concentration of Comparative Example 1 and less than 1/20 of the gas concentration of Comparative Example 2 (same as the blank test).
  • the spherical fine particle activated carbon 33 has an excellent deodorizing effect, and by using the activated carbon filter sheet 30 containing the spherical fine particle activated carbon 33 as the inner sheet of the mask 1, it is possible to suppress the generation of odor due to saliva and runny nose. can.
  • the activated carbon filter sheet 30 not only has a deodorizing effect, but also can absorb water such as saliva and runny nose by the base sheet 31 of the activated carbon filter sheet 30, so that the enzyme filter sheet 20 and the mask body 10 can be used for a long period of time. It can be used in a clean state.
  • the base sheet 31 of the activated carbon filter sheet 30 pollen, dust, dust and other substances other than microorganisms passing through the enzyme filter sheet 20 can be removed. It can be adsorbed by the activated carbon filter sheet 30.
  • the activated carbon filter sheet 30 which is an inner sheet can be replaced frequently, and the enzyme filter sheet 20 can be used for a long period of time.
  • the activated carbon filter sheet 30 may be replaced every day, while the enzyme filter sheet 20 may be used continuously for about 20 days.
  • FIGS. 2 and 3 the embodiment of FIGS. 2 and 3 is adopted so that the enzyme filter sheet 20 is integrated with the mask body 10 or stored in the pocket 12, while the activated carbon filter sheet 30 is arranged on the front side by itself. With such a configuration, only the activated carbon filter sheet 30 can be easily replaced.
  • the mask body 10 and the enzyme filter sheet 20 can be kept clean for a long time. Further, the activated carbon filter sheet 30 and the enzyme filter sheet 20 may be washed and reused.
  • the spherical fine particle activated carbon 33 does not generate black stains, and can prevent the color from transferring to the light-colored mask 1 or the skin and becoming black stains.
  • spherical fine particle activated carbon 33 may be added to the activated carbon filter sheet 30.
  • ordinary activated carbon for example, Akamatsu charcoal capsule powder which is Comparative Example 1 of the above test
  • activated carbon has an odor adsorption effect, and therefore contributes to the function as the activated carbon filter sheet 30.
  • the color of ordinary activated carbon is easily transferred, but as shown in FIG. 5C, if the activated carbon is covered with the resin layer 34, the color transfer can be difficult and there is no problem.
  • Mask 10 Mask body 11 Sheet part 11a Folds 12 Pocket 13 Ear hook part 15 Mask filter sheet 20 Enzyme filter sheet 21 Fiber sheet 22 Lysis enzyme 30 Activated carbon filter sheet 31 Base sheet 32 Sheet layer (sheet material) 33 Spherical fine particle activated carbon 34 Resin layer 35 Hole 35a Macro hole 35b Micro hole 36a Inorganic antibacterial agent 36b Deodorant 36c Air freshener 40 Bacteria (virus) 41 Cell wall (shell) 42 body

Abstract

A mask filter sheet 15 comprises: an activated carbon filter sheet 30 including a substrate sheet 31 including porous, particulate activated carbon fine particles 33 having a particle diameter of 150-600 μm; and an enzyme filter sheet 20 including a fibrous sheet 21 including a lytic enzyme 22.

Description

マスク用フィルターシートおよび活性炭フィルターシートMask filter sheet and activated carbon filter sheet
　本発明は、ウイルスや細菌の口や鼻からの侵入を効果的に防止できるマスク用フィルターシートおよび活性炭フィルターシートに関する。 The present invention relates to a mask filter sheet and an activated carbon filter sheet that can effectively prevent the invasion of viruses and bacteria from the mouth and nose.
　近時、口や鼻からウイルスが侵入することを防止できる衛生マスクが種々提案されている。特に、特許文献１のものは、ウイルスをマスク本体で捕捉するだけではなく、抗ウイルス剤でウイルスを不活化するものである。そのため、使用済みのマスクからウイルスが拡散するおそれもほとんどない。 Recently, various hygiene masks have been proposed that can prevent viruses from entering through the mouth and nose. In particular, Patent Document 1 not only captures the virus with the mask body, but also inactivates the virus with an antiviral agent. Therefore, there is almost no risk of the virus spreading from the used mask.
特開２００８－３７８１４号公報Japanese Unexamined Patent Publication No. 2008-37814
　しかしながら、抗ウイルス剤を含んだ衛生マスクであっても抗ウイルス性が長時間持続するとは限らない。また、マスクを使用してウイルスを不活化したとしても、マスクの使用中に口や鼻から出る水分によりマスク内において雑菌やにおい成分を発生させるおそれがあるため、かならずしも衛生的であるとはいえない。 However, even a sanitary mask containing an antiviral agent does not always have antiviral properties for a long time. In addition, even if the virus is inactivated by using a mask, it is always hygienic because the moisture that comes out of the mouth and nose while using the mask may generate germs and odorous components in the mask. No.
　本発明は、このような事情を考慮して提案されたもので、その目的は、ウイルスや細菌を死滅あるいは捕集することができ、かつ、その効果を衛生的な状態で持続させることができるマスク用フィルターシートおよび活性炭フィルターシートを提供することにある。 The present invention has been proposed in consideration of such circumstances, and an object thereof is to be able to kill or collect viruses and bacteria, and to maintain the effect in a hygienic state. It is an object of the present invention to provide a filter sheet for a mask and an activated carbon filter sheet.
　上記目的を達成するために、本発明のマスク用フィルターシートは、繊維よりなる基材シートに、粒径を１５０～６００μｍとした、多孔質の球状微粒子活性炭を含ませてなる活性炭フィルターシートと、溶菌酵素を繊維シートに含ませてなる酵素フィルターシートと、を備えたことを特徴とする。 In order to achieve the above object, the mask filter sheet of the present invention includes an activated carbon filter sheet made of a base material sheet made of fibers and containing porous spherical fine particle activated carbon having a particle size of 150 to 600 μm. It is characterized by including an enzyme filter sheet in which a lytic enzyme is contained in a fiber sheet.
　また、本発明の活性炭フィルターシートは、溶菌酵素を繊維シートに含ませてなる酵素フィルターシートに重ね合わせて、マスクのインナーシートとして使用される活性炭フィルターシートであって、繊維よりなる基材シートに、粒径を１５０～６００μｍとした、多孔質の球状微粒子活性炭を含ませてなることを特徴とする。 Further, the activated carbon filter sheet of the present invention is an activated carbon filter sheet used as an inner sheet of a mask by superimposing a bacteriolytic enzyme on an enzyme filter sheet made of a fiber sheet, and is used as a base sheet made of fibers. It is characterized by containing a porous spherical fine particle activated carbon having a particle size of 150 to 600 μm.
　本発明のマスク用フィルターシートは上述した構成とされているため、ウイルスや細菌を死滅あるいは捕集することができ、かつ、その効果を衛生的な状態で持続させることができる。 Since the mask filter sheet of the present invention has the above-mentioned structure, viruses and bacteria can be killed or collected, and the effect can be maintained in a hygienic state.
　本発明の活性炭フィルターシートは上述した構成とされているため、溶菌酵素を繊維シートに含ませてなる酵素フィルターシートに重ね合わせて、マスクのインナーシートとして使用される場合において、ウイルスや細菌を死滅あるいは捕集することができ、かつ、その効果を持続させることができる。 Since the activated carbon filter sheet of the present invention has the above-mentioned structure, it kills viruses and bacteria when it is used as an inner sheet of a mask by superimposing a lytic enzyme on an enzyme filter sheet contained in a fiber sheet. Alternatively, it can be collected and its effect can be sustained.
本発明の一実施形態に係るマスク用フィルターシートおよびそれに用いられる活性炭フィルターシートの説明図であり、（ａ）はマスク本体の模式図、（ｂ）はマスク用フィルターシートの使用態様を示す模式図である。It is explanatory drawing of the mask filter sheet which concerns on one Embodiment of this invention, and the activated carbon filter sheet used therein, (a) is a schematic diagram of a mask main body, (b) is a schematic diagram which shows the usage mode of a mask filter sheet. Is. 本発明の他の実施形態に係るマスク用フィルターシートおよびそれに用いられる活性炭フィルターシートの使用態様を示す模式斜視図である。It is a schematic perspective view which shows the usage mode of the filter sheet for a mask which concerns on other embodiment of this invention, and the activated carbon filter sheet used therein. 本発明のさらに他の実施形態に係るマスク用フィルターシートおよびそれに用いられる活性炭フィルターシートの使用態様を示す模式図である。It is a schematic diagram which shows the usage mode of the filter sheet for a mask which concerns on still another Embodiment of this invention, and the activated carbon filter sheet used therein. 溶菌酵素の殺菌メカニズムを示す模式図である。It is a schematic diagram which shows the bactericidal mechanism of a lytic enzyme. （ａ）（ｂ）（ｃ）は、活性炭フィルターシートの３例を示す模式縦断面図である。(A), (b) and (c) are schematic vertical sectional views showing three examples of activated carbon filter sheets. 球状微粒子活性炭の模式拡大断面図である。It is a schematic enlarged cross-sectional view of the spherical fine particle activated carbon. （ａ）は球状微粒子活性炭の脱臭試験に用いた実施例の拡大写真、（ｂ）は同試験における比較例１の拡大写真、（ｃ）は同試験における比較例２の拡大写真である。(A) is an enlarged photograph of an example used in the deodorization test of spherical fine particle activated carbon, (b) is an enlarged photograph of Comparative Example 1 in the same test, and (c) is an enlarged photograph of Comparative Example 2 in the same test. 脱臭試験の結果（ガス濃度）を示す表である。（ａ）はメチルメルカプタンに関する結果表、（ｂ）は硫化水素に関する結果表である。It is a table which shows the result (gas concentration) of a deodorizing test. (A) is a result table for methyl mercaptan, and (b) is a result table for hydrogen sulfide. （ａ）は、脱臭試験の結果（ガス濃度）を示すもので、アセトアルデヒドに関する結果表である。（ｂ）は、アセトアルデヒドに関し、ガス濃度を経過時間ごとに示したグラフである。(A) shows the result (gas concentration) of the deodorization test, and is the result table regarding acetaldehyde. (B) is a graph showing the gas concentration of acetaldehyde for each elapsed time.
　本発明の実施の形態について、添付図面を参照しながら説明する。
　まず、本マスク用フィルターシート１５の基本構成を記述する。 Embodiments of the present invention will be described with reference to the accompanying drawings.
First, the basic configuration of the filter sheet 15 for this mask will be described.
　本マスク用フィルターシート１５は、基材シート３１に、粒径を１５０～６００μｍとした、多孔質の球状微粒子活性炭３３を含ませてなる活性炭フィルターシート３０と、溶菌酵素２２を繊維シート２１に含ませてなる酵素フィルターシート２０とを備えた構成とされる。 The mask filter sheet 15 contains an activated carbon filter sheet 30 in which a base sheet 31 contains a porous spherical fine particle activated carbon 33 having a particle size of 150 to 600 μm, and a bacteriolytic enzyme 22 in the fiber sheet 21. It is configured to include the enzyme filter sheet 20 as a particle.
　ついで、各部の詳細について説明する。まず、図１～図３に示す３実施形態の概要について説明する。 Next, I will explain the details of each part. First, the outline of the three embodiments shown in FIGS. 1 to 3 will be described.
　マスク用フィルターシート１５は、マスク１に用いられるシートセットとされ、上述したように、酵素フィルターシート２０と活性炭フィルターシート３０とを備えている。 The mask filter sheet 15 is a sheet set used for the mask 1, and includes an enzyme filter sheet 20 and an activated carbon filter sheet 30 as described above.
　酵素フィルターシート２０は、図１、図２に示すように、マスク本体１０の内側に配する矩形状のシートであってもよいし、図３に示すように、マスク本体１０のシート部１１に一体とされたものであってもよい。 The enzyme filter sheet 20 may be a rectangular sheet arranged inside the mask body 10 as shown in FIGS. 1 and 2, or may be formed on the sheet portion 11 of the mask body 10 as shown in FIG. It may be integrated.
　図１のものは、外側から順に、マスク本体１０と、酵素フィルターシート２０と、活性炭フィルターシート３０とを備えてなる。図１（ａ）に示すように、未使用状態で外形が略矩形状をなすシート部１１と、シート部１１の両端に取りつけた耳掛け部１３とを有してなる。 The one in FIG. 1 includes a mask body 10, an enzyme filter sheet 20, and an activated carbon filter sheet 30 in this order from the outside. As shown in FIG. 1A, it includes a sheet portion 11 having a substantially rectangular outer shape in an unused state, and ear hook portions 13 attached to both ends of the sheet portion 11.
　図２のものは、マスク本体１０のシート部１１が酵素フィルターシート２０を含んで一体として構成され、その内側に活性炭フィルターシート３０を配してなる。シート部１１の全体が酵素フィルターシート２０で構成されたものでもよいし、例えばシート部１１の中央部に酵素フィルターシート２０を配してなるものでもよい。 In FIG. 2, the sheet portion 11 of the mask main body 10 includes the enzyme filter sheet 20 and is integrally formed, and the activated carbon filter sheet 30 is arranged inside the sheet portion 11. The entire sheet portion 11 may be composed of the enzyme filter sheet 20, or the enzyme filter sheet 20 may be arranged at the center of the sheet portion 11, for example.
　図１および図２のものは、シート部１１には、複数の横方向に延びるひだ１１ａが上下方向に複数形成されている。未使用状態（図１（ａ）参照）では略矩形である一方、使用する際に（図１（ｂ）および図３参照）ひだ１１ａを上下に広げることで、口や鼻を覆うような立体的な形状になる。 In the ones of FIGS. 1 and 2, a plurality of folds 11a extending in the lateral direction are formed in the seat portion 11 in the vertical direction. While it is substantially rectangular in the unused state (see FIG. 1 (a)), it is a three-dimensional object that covers the mouth and nose by spreading the folds 11a up and down when it is used (see FIGS. 1 (b) and 3). Shape.
　図３のものは、マスク本体１０と、そのシート部１１の内面側に上方に開口するポケット１２を有し、そのポケット１２に装着される酵素フィルターシート２０と、ポケット１２の外面側に配される活性炭フィルターシート３０とを備えてなる。このシート部１１は、ひだ１１ａを有さず、その内面側に柔軟なポケット１２が形成されている。このようなシート部１１としては例えば、枠などに骨組を配して形状が変化しない立体的なものとしてもよい。 The one of FIG. 3 has a mask main body 10, a pocket 12 that opens upward on the inner surface side of the sheet portion 11, an enzyme filter sheet 20 that is attached to the pocket 12, and is arranged on the outer surface side of the pocket 12. The activated carbon filter sheet 30 is provided. The seat portion 11 does not have folds 11a, and a flexible pocket 12 is formed on the inner surface side thereof. Such a sheet portion 11 may be, for example, a three-dimensional one in which a frame is arranged on a frame or the like so that the shape does not change.
　図３に示すように、ポケット１２を開き（引っ張り出し）上方が開口した状態で酵素フィルターシート２０をポケット１２内に挿入し、ポケット１２を閉じ（シート部１１に重ね合わせ）、そのポケット１２の内面側に活性炭フィルターシート３０を配するようにして、マスク１は使用可能な状態となる。 As shown in FIG. 3, the enzyme filter sheet 20 is inserted into the pocket 12 with the pocket 12 opened (pulled out) and the upper side is opened, the pocket 12 is closed (superposed on the sheet portion 11), and the pocket 12 is opened. The activated carbon filter sheet 30 is arranged on the inner surface side so that the mask 1 can be used.
　このような構成とすれば、酵素フィルターシート２０、活性炭フィルターシート３０はいずれも取り替えやすいが、酵素フィルターシート２０がポケット１２に配されるので、活性炭フィルターシート３０のみがより取り替えやすくなる。 With such a configuration, both the enzyme filter sheet 20 and the activated carbon filter sheet 30 are easy to replace, but since the enzyme filter sheet 20 is arranged in the pocket 12, only the activated carbon filter sheet 30 is easier to replace.
　図１～図３のいずれのものも、シート部１１は繊維状のシートよりなり、例えばセルロース系不織布シートや、その他不織布シート、紙シートなどの通気性を有する素材で形成されていればよい。耳掛け部１３は柔軟性、伸縮性のある布、ゴムなどで形成されたものであればよい。 In any of FIGS. 1 to 3, the sheet portion 11 is made of a fibrous sheet, and may be formed of, for example, a cellulose-based non-woven fabric sheet, another non-woven fabric sheet, a paper sheet, or other breathable material. The ear hook portion 13 may be made of a flexible, elastic cloth, rubber or the like.
　つぎに、酵素フィルターシート２０、活性炭フィルターシート３０について順に説明する。 Next, the enzyme filter sheet 20 and the activated carbon filter sheet 30 will be described in order.
　酵素フィルターシート２０は、花粉や塵、埃、細菌４０（図４参照）、ウイルスなどを捕集できる通気性を有する繊維シート２１よりなり、繊維シート２１の繊維には溶菌酵素２２（図１～図３には不図示）が固着している。繊維シート２１の基材としては不織布やガーゼが用いられる。酵素フィルターシート２０としては、ＪＩＳ規格であるＪＩＳＬ１９２２（繊維製品の抗ウイルス性試験方法）により効果ありと認められたものを用いることが望ましい。 The enzyme filter sheet 20 is made of a breathable fiber sheet 21 capable of collecting pollen, dust, dust, bacteria 40 (see FIG. 4), viruses, etc., and the fibers of the fiber sheet 21 are lysed by the enzyme 22 (FIGS. 1 to 1). (Not shown in FIG. 3) is fixed. Nonwoven fabric or gauze is used as the base material of the fiber sheet 21. As the enzyme filter sheet 20, it is desirable to use one that is recognized as effective by JISL1922 (antiviral test method for textile products), which is a JIS standard.
　溶菌酵素２２は、細菌４０やウイルスなどの微生物を、図４に示す殺菌メカニズムにより不活化（死滅）させる機能を有している。具体的には、溶菌酵素２２は、細菌４０やウイルスを捕集し、タンパク質で形成された細菌４０の細胞壁４１やウイルスの殻（エンベロープ）を溶解し、細胞壁４１や殻に孔が空いて破裂し、内部の本体４２を死滅させる。 The lytic enzyme 22 has a function of inactivating (killing) microorganisms such as bacteria 40 and viruses by the bactericidal mechanism shown in FIG. Specifically, the lytic enzyme 22 collects bacteria 40 and viruses, dissolves the cell walls 41 and virus shells (envelopes) of bacteria 40 formed of proteins, and ruptures the cell walls 41 and shells with holes. Then, the main body 42 inside is killed.
　また、溶菌酵素２２は溶菌作用により消費されない。したがって、繊維シート２１が劣化したり、溶菌酵素２２が繊維シート２１から分離したりしないかぎり、酵素フィルターシート２０は半永久的に利用することができる。 Also, the lytic enzyme 22 is not consumed due to the lytic action. Therefore, the enzyme filter sheet 20 can be used semi-permanently unless the fiber sheet 21 is deteriorated or the lytic enzyme 22 is separated from the fiber sheet 21.
　また、マスク本体１０のシート部１１を通過した花粉や塵、埃は、酵素フィルターシート２０の繊維シート２１の目の粗さにもよるが、その多くが酵素フィルターシート２０に捕集される。 Further, pollen, dust, and dust that have passed through the sheet portion 11 of the mask body 10 are mostly collected by the enzyme filter sheet 20 although it depends on the roughness of the fiber sheet 21 of the enzyme filter sheet 20.
　一方、活性炭フィルターシート３０は、基材シート３１として、マスク本体１０のシート部１１や酵素フィルターシート２０の繊維シート２１と同様に、不織布などの通気性を有する繊維フィルターが用いられる。この基材シート３１には、多孔質の球状微粒子活性炭３３が含まれている。基材シート３１は、内部の球状微粒子活性炭３３が抜け出さないような肌理を有するものが望ましい。 On the other hand, as the base sheet 31, the activated carbon filter sheet 30 uses a breathable fiber filter such as a non-woven fabric, like the sheet portion 11 of the mask body 10 and the fiber sheet 21 of the enzyme filter sheet 20. The base material sheet 31 contains a porous spherical fine particle activated carbon 33. It is desirable that the base sheet 31 has a texture so that the spherical fine particle activated carbon 33 inside does not come out.
　この活性炭フィルターシート３０は、酵素フィルターシート２０に重ね合わせて、マスク１のインナーシートとして使用される。この活性炭フィルターシート３０は、繊維よりなる基材シート３１を備え、その基材シート３１に、粒径を１５０～６００μｍとした、多孔質の球状微粒子活性炭３３を含ませてなる。 This activated carbon filter sheet 30 is superposed on the enzyme filter sheet 20 and used as an inner sheet of the mask 1. The activated carbon filter sheet 30 includes a base material sheet 31 made of fibers, and the base material sheet 31 contains porous spherical fine particle activated carbon 33 having a particle size of 150 to 600 μm.
　例えば、図５（ａ）に示すように、基材シート３１は、複数層（図例では２層）のシート層３２を有し、シート層３２間に複数の球状微粒子活性炭３３を配した構成とさればよい。図例のように、球状微粒子活性炭３３がシート層３２の繊維に絡まるようにシート層３２の内部に入りこんだものでもよい。 For example, as shown in FIG. 5A, the base sheet 31 has a plurality of layers (two layers in the example) of the sheet layers 32, and a plurality of spherical fine particle activated carbons 33 are arranged between the sheet layers 32. It should be said. As shown in the illustrated example, the spherical fine particle activated carbon 33 may enter the inside of the sheet layer 32 so as to be entangled with the fibers of the sheet layer 32.
　また、図５（ｂ）に示すように、基材シート３１が１枚のシート層３２とされ、複数の球状微粒子活性炭３３を、繊維に絡ませるようにして１枚のシート層３２の内部に配した構成としてもよい。 Further, as shown in FIG. 5B, the base sheet 31 is formed as one sheet layer 32, and a plurality of spherical fine particle activated carbons 33 are entwined with the fibers inside the one sheet layer 32. It may be arranged.
　例えば、捺染印刷による表面模様が施された基材シート３１としてもよい。その場合、表面模様を施すために、捺染糊に模様のための染料と球状微粒子活性炭３３を混ぜてペースト状にし、それをシート層３２の表面に塗り、球状微粒子活性炭３３をシート層３２の繊維に絡まるようにしてもよい。もちろん、模様を施さない場合でも、種々の接着剤や糊に球状微粒子活性炭３３を混ぜ表面に塗って球状微粒子活性炭３３をシート層３２に固着させてもよい。 For example, the base sheet 31 having a surface pattern by printing may be used. In that case, in order to apply a surface pattern, the dye for the pattern and the spherical fine particle activated carbon 33 are mixed with the printing paste to form a paste, which is applied to the surface of the sheet layer 32, and the spherical fine particle activated carbon 33 is applied to the fibers of the sheet layer 32. It may be entwined with. Of course, even when the pattern is not applied, the spherical fine particle activated carbon 33 may be mixed with various adhesives or glues and applied to the surface to fix the spherical fine particle activated carbon 33 to the sheet layer 32.
　さらに、図５（ｃ）に示すように、基材シート３１が複数層（図例では２層）のシート層３２を有し、複数の球状微粒子活性炭３３を樹脂層３４に含ませ、その樹脂層３４をシート層３２間に配した構成としてもよい。この樹脂層３４は熱硬化してひび割れ状態とされ、そのひび割れにより通気路（不図示）が形成されている。 Further, as shown in FIG. 5C, the base material sheet 31 has a plurality of layers (two layers in the example) of the sheet layer 32, and a plurality of spherical fine particle activated carbons 33 are contained in the resin layer 34, and the resin thereof is contained. The layer 34 may be arranged between the sheet layers 32. The resin layer 34 is thermally cured to be in a cracked state, and a ventilation path (not shown) is formed by the cracks.
　樹脂層３４は、アイオノマー樹脂溶液に浸した状態の球状微粒子活性炭３３を、２枚のシート層３２（シート材）間に挟み込み、その溶液を４０度で硬化させて、球状微粒子活性炭をシート材３２間に挟んだ状態で固着させて形成されるようにすればよい。 In the resin layer 34, the spherical fine particle activated carbon 33 in a state of being immersed in the ionomer resin solution is sandwiched between two sheet layers 32 (sheet materials), the solution is cured at 40 degrees, and the spherical fine particle activated carbon is transferred to the sheet material 32. It may be formed by fixing the particles in a state of being sandwiched between them.
　このようにアイオノマー樹脂溶液を４０度で加熱硬化させれば、球状微粒子活性炭３３を内部に含んだ硬化物はひび割れ状態となるが、そのひび（裂け目）が気体の流通路となり、シート材３２の繊維間空隙（不図示）を通じて、球状微粒子活性炭３３の表面が外気と接触することが可能となる。なお、硬化した樹脂層３４は柔軟性があるため、柔軟性のあるマスク１にフィットしやすい。 When the ionomer resin solution is heat-cured at 40 ° C. in this way, the cured product containing the spherical fine particle activated carbon 33 inside becomes a cracked state, but the crack (crevice) becomes a gas flow passage and the sheet material 32 becomes a flow passage. The surface of the spherical fine particle activated carbon 33 can come into contact with the outside air through the interfiber gap (not shown). Since the cured resin layer 34 is flexible, it easily fits into the flexible mask 1.
　このような球状微粒子活性炭３３は、図６に示すように、略真球形状とされている。球状微粒子活性炭３３の内部には、球表面に開口する複数の孔部３５が形成されている。これら孔部３５は、球表面から球内部に向かって形成される複数のマクロ孔３５ａを有しており、各マクロ孔３５ａには、そのマクロ孔３５ａを幹としてそこから枝分かれするように複数のミクロ孔３５ｂが形成されている。ミクロ孔３５ｂの孔径寸法は、マクロ孔３５ａの径よりも小さい。このような構成の孔部３５が球表面上に複数設けられていることにより、球状微粒子活性炭３３は超多孔質となっている。 As shown in FIG. 6, such spherical fine particle activated carbon 33 has a substantially spherical shape. Inside the spherical fine particle activated carbon 33, a plurality of pores 35 that open on the surface of the sphere are formed. These hole portions 35 have a plurality of macro holes 35a formed from the surface of the sphere toward the inside of the sphere, and each macro hole 35a has a plurality of macro holes 35a as a trunk so as to branch from the macro holes 35a. Micropores 35b are formed. The hole diameter dimension of the micro hole 35b is smaller than the diameter of the macro hole 35a. The spherical fine particle activated carbon 33 is superporous because a plurality of pores 35 having such a structure are provided on the surface of the sphere.
　このような球状微粒子活性炭３３は、超多孔質であることによる臭い吸着効果を有している。また、球状微粒子活性炭３３は、炭素材であるので遠赤外線を放射作用も有している。 Such spherical fine particle activated carbon 33 has an odor adsorption effect due to being superporous. Further, since the spherical fine particle activated carbon 33 is a carbon material, it also has an action of radiating far infrared rays.
　球状微粒子活性炭３３としては、炭素純度が９０％以上のものを用いてもよく、望ましくは９９．９％以上のものを用いてもよい。また、球径が１５０μｍ～６００μｍのものを用いてもよく、さらに望ましくは１８０μｍ～５００μｍのものを用いてもよい。また、孔部３５の細孔容積が０．９～２．０ｃｍ３／ｇ、細孔ピーク直径が０．５～２．０ｎｍ程度のものを用いてもよい。ここで、細孔容積とは、球状微粒子活性炭３３内に形成された全てのマクロ孔３５ａおよびミクロ孔３５ｂの孔内の容積の和であり、また、細孔ピーク直径とは、孔部３５における球状微粒子活性炭３３表面の開口径のうち最大のものを指す。 As the spherical fine particle activated carbon 33, one having a carbon purity of 90% or more may be used, and preferably 99.9% or more may be used. Further, those having a sphere diameter of 150 μm to 600 μm may be used, and more preferably 180 μm to 500 μm may be used. Further, those having a pore volume of 0.9 to 2.0 cm 3 / g and a pore peak diameter of about 0.5 to 2.0 nm may be used. Here, the pore volume is the sum of the volumes in the pores of all the macropores 35a and the micropores 35b formed in the spherical fine particle activated carbon 33, and the pore peak diameter is in the pore portion 35. It refers to the largest opening diameter on the surface of the spherical fine particle activated carbon 33.
　本実施形態では、球状微粒子活性炭３３は、炭化させたフェノール樹脂から構成されており、比表面積が１０００ｍ２／ｇ以上とされている。ここで、比表面積とは、球状微粒子活性炭３３の球表面の面積、および全ての孔部３５のマクロ孔３５ａおよびミクロ孔３５ｂを構成する面の面積の合計である。 In the present embodiment, the spherical fine particle activated carbon 33 is composed of carbonized phenol resin and has a specific surface area of 1000 m 2 / g or more. Here, the specific surface area is the total of the area of the spherical surface of the spherical fine particle activated carbon 33 and the area of the surfaces forming the macropores 35a and the micropores 35b of all the pores 35.
　球状微粒子活性炭３３は、例えば以下のようにして製造すればよい。
　まず、原料となるフェノール樹脂などを粉砕し、粉砕片を加工して複数の球体を得る。この球体を高温下（例えば７００～８００℃程度）で炭化させた後、その処理物を高温下（例えば９００～１０００℃程度）で水蒸気と反応させる（水蒸気賦活）。この水蒸気賦活により多孔質の構造が形成される。その後、精製し不純物を取り除き、ふるい分けを行い、所望の粒径、および所望のマクロ孔３５ａおよびミクロ孔３５ｂの孔径を有した多数の孔部３５が形成された球状微粒子活性炭３３が得られる。 The spherical fine particle activated carbon 33 may be produced, for example, as follows.
First, a phenol resin or the like as a raw material is crushed, and crushed pieces are processed to obtain a plurality of spheres. After carbonizing this sphere at a high temperature (for example, about 700 to 800 ° C.), the processed product is reacted with steam at a high temperature (for example, about 900 to 1000 ° C.) (steam activation). A porous structure is formed by this steam activation. Then, purification is performed to remove impurities and sieving to obtain spherical fine particle activated carbon 33 in which a large number of pores 35 having a desired particle size and desired macropores 35a and micropores 35b are formed.
　なお、賦活としては、水蒸気賦活に限られず、二酸化炭素や空気などを用いて行なってもよい。また、ＫＯＨなどを用いたアルカリ賦活を行なってもよい。また、球状微粒子活性炭３３の原料としては、フェノール樹脂に限られず、ヤシ殻炭や石灰などとしてもよい。 Note that the activation is not limited to steam activation, and may be performed using carbon dioxide, air, or the like. Further, alkali activation using KOH or the like may be performed. Further, the raw material of the spherical fine particle activated carbon 33 is not limited to the phenol resin, and may be coconut shell charcoal, lime, or the like.
　このような球状微粒子活性炭３３は、マスク１に利用されるものであるため、高温高圧殺菌、高温殺菌、低温殺菌などの種々の殺菌方法にて殺菌されていることが望ましい。 Since such spherical fine particle activated carbon 33 is used for the mask 1, it is desirable that it is sterilized by various sterilization methods such as high temperature high pressure sterilization, high temperature sterilization, and pasteurization.
　球状微粒子活性炭３３としては、例えば、Ｂ’ｓ　Ｗｉｐｅｒ（登録商標）や、特許第４２６６７１１号公報および特許第４３０８７４０号公報に開示された製法で製造されたものを好適に使用することができる。 As the spherical fine particle activated carbon 33, for example, B's Wiper (registered trademark) or one manufactured by the production method disclosed in Japanese Patent No. 4266711 and Japanese Patent No. 4308740 can be preferably used.
　また、球状微粒子活性炭３３としては、強い圧力や衝撃が加えられても割れて粉々にならず、色素などが皮膚などに付着するおそれがないものを利用することが望ましい。さらにｐＨ値が７前後（中性）のものとすることが望ましい。このような球状微粒子活性炭３３を用いれば、活性炭フィルターシート３０をより望ましく皮膚に接触させた状態で安全に使用することができる。 Further, as the spherical fine particle activated carbon 33, it is desirable to use one that does not crack and shatter even when a strong pressure or impact is applied, and the pigment or the like does not adhere to the skin or the like. Further, it is desirable that the pH value is around 7 (neutral). By using such spherical fine particle activated carbon 33, the activated carbon filter sheet 30 can be safely used in a more desirable state of being in contact with the skin.
　また、球状微粒子活性炭３３の孔部３５に無機抗菌剤３６ａを含ませてもよい。無機抗菌剤３６ａとしては、抗菌作用を有する金属や金属イオンを無機系担体に担持させて構成したものを用いてもよい。この種の無機抗菌剤３６ａとしては、例えば、粉体である銀系の無機抗菌剤３６ａ（例えば、ノバロン（登録商標））を用いてもよい。無機抗菌剤３６ａは、溶液に溶解または分散させて、球状微粒子活性炭３３の孔部３５内に含侵させるようにすればよい。これにより、活性炭フィルターシート３０を、雑菌が繁殖しにくいなどの抗菌効果を有するものにすることができ、活性炭フィルターシート３０の劣化を防ぐことができる。 Further, the inorganic antibacterial agent 36a may be contained in the pores 35 of the spherical fine particle activated carbon 33. As the inorganic antibacterial agent 36a, a metal or a metal ion having an antibacterial action may be supported on an inorganic carrier. As the inorganic antibacterial agent 36a of this type, for example, a silver-based inorganic antibacterial agent 36a (for example, Novalon (registered trademark)) which is a powder may be used. The inorganic antibacterial agent 36a may be dissolved or dispersed in a solution so as to impregnate the inside of the pores 35 of the spherical fine particle activated carbon 33. As a result, the activated carbon filter sheet 30 can be made to have an antibacterial effect such that germs are difficult to propagate, and deterioration of the activated carbon filter sheet 30 can be prevented.
　口や鼻の周りの皮膚の汗や皮脂などが活性炭フィルターシート３０内に吸い取られると、活性炭フィルターシート３０に接触する皮膚に存在する雑菌によってこれらが分解され、いわゆる分解臭である悪臭が生じる。上記のような無機抗菌剤３６ａを、球状微粒子活性炭３３内に含ませれば、雑菌がこれにより死ぬので、雑菌による汗や皮脂などの分解が抑えられ、球状微粒子活性炭３３の臭い吸着効果とあいまって、悪臭の発生が抑制される。 When sweat and sebum from the skin around the mouth and nose are absorbed into the activated carbon filter sheet 30, these are decomposed by germs existing on the skin in contact with the activated carbon filter sheet 30, and a so-called decomposed odor is generated. If the above-mentioned inorganic antibacterial agent 36a is contained in the spherical fine particle activated carbon 33, germs are killed by this, so that decomposition of sweat and sebum by the germs is suppressed, and together with the odor adsorption effect of the spherical fine particle activated carbon 33. , The generation of foul odor is suppressed.
　また、孔部３５には消臭剤３６ｂを含ませてもよい。消臭剤３６ｂとしては、臭い成分を活性酸素で酸化して別の物質に変化させてその臭い成分を分解する作用を有するものを用いてもよい。このような消臭剤３６ｂとして、ＤＥＯＲＡＳＥ（登録商標）がある。このＤＥＯＲＡＳＥ（登録商標）は、アルカリ条件での中心金属の脱離による消臭効果の低下が見られず、生体内の酵素に似たサイクル反応をもたらすため、他の化学反応を用いた消臭剤と比べて、格段に消臭効果が持続する。また、一般的に、上記サイクル反応の反応性は、吸湿による水分により低下することが知られているが、ＤＥＯＲＡＳＥ（登録商標）では、逆に吸湿により反応性が向上することがわかっている。 Further, the hole 35 may contain a deodorant 36b. As the deodorant 36b, one having an action of oxidizing an odorous component with active oxygen to change it into another substance and decomposing the odorous component may be used. As such a deodorant 36b, there is DEORASE (registered trademark). This DEORASE (registered trademark) does not show a decrease in deodorizing effect due to desorption of the central metal under alkaline conditions, and causes a cycle reaction similar to an enzyme in the living body. Compared to the agent, the deodorant effect lasts much longer. Further, it is generally known that the reactivity of the cycle reaction is lowered by the moisture due to moisture absorption, but in DEORASE (registered trademark), it is known that the reactivity is improved by moisture absorption.
　なお、消臭剤３６ｂとしては、これ以外に、例えば、人工酵素である鉄系フタロシアニンなどを用いたものを採用してもよい。 As the deodorant 36b, for example, an artificial enzyme such as iron-based phthalocyanine may be used.
　上述のように、活性炭フィルターシート３０内に吸い取られた皮膚の汗や皮脂などは、接触する皮膚に存在する雑菌によって分解されることにより、いわゆる分解臭である悪臭が生じる。上記のような消臭剤３６ｂを内に含ませることによって、汗や皮脂などがこれにより分解されるので、雑菌が分解する対象物がなくなり、悪臭の発生が抑制される。 As described above, the sweat and sebum of the skin absorbed in the activated carbon filter sheet 30 are decomposed by various germs existing on the skin in contact with each other, so that a bad odor, which is a so-called decomposed odor, is generated. By including the deodorant 36b as described above, sweat, sebum and the like are decomposed by this, so that there is no object to be decomposed by various germs, and the generation of foul odor is suppressed.
　さらに、孔部３５には芳香剤３６ｃを含ませてもよい。芳香剤３６ｃとしては、柑橘系などの種々の臭い成分を含む物質としてもよく、アロマオイルなどを用いてもよい。また、天然素材からなるものや人工的に合成したものとしてもよい。 Further, the hole 35 may contain the fragrance 36c. The fragrance 36c may be a substance containing various odorous components such as citrus fruits, or an aroma oil or the like may be used. Further, it may be made of a natural material or artificially synthesized.
　上記のような無機抗菌剤３６ａ、消臭剤３６ｂ、芳香剤３６ｃといった機能性物質を球状微粒子活性炭３３内に含ませる場合、球状微粒子活性炭３３を浸したアイオノマー樹脂溶液などの樹脂溶液層中に機能性物質を溶解または分散させて、球状微粒子活性炭３３に吸着させるようにすればよい。球状微粒子活性炭３３は超多孔質であるため、この方法により球状微粒子活性炭３３の孔部３５内にこれら機能性物質を簡易に含ませることができる。 When functional substances such as the above-mentioned inorganic antibacterial agent 36a, deodorant 36b, and fragrance 36c are contained in the spherical fine particle activated carbon 33, they function in the resin solution layer such as the ionomer resin solution in which the spherical fine particle activated carbon 33 is immersed. The sex substance may be dissolved or dispersed so as to be adsorbed on the spherical fine particle activated carbon 33. Since the spherical fine particle activated carbon 33 is ultraporous, these functional substances can be easily contained in the pores 35 of the spherical fine particle activated carbon 33 by this method.
　以上のように、マスク用フィルターシート１５が酵素フィルターシート２０と活性炭フィルターシート３０とを含んだ構成であるため、酵素フィルターシート２０の溶菌酵素２２で細菌４０（図４参照）やウイルスを死滅させることができ、かつ活性炭フィルターシート３０の球状微粒子活性炭３３の臭い吸着効果により、種々の臭いの発生を抑えることができる。特に、球状微粒子活性炭３３に無機抗菌剤３６ａを含ませれば、悪臭の発生をさらに低減化させることができる。 As described above, since the mask filter sheet 15 includes the enzyme filter sheet 20 and the activated carbon filter sheet 30, the lytic enzyme 22 of the enzyme filter sheet 20 kills bacteria 40 (see FIG. 4) and viruses. It is possible to suppress the generation of various odors due to the odor adsorption effect of the spherical fine particle activated carbon 33 of the activated carbon filter sheet 30. In particular, if the spherical fine particle activated carbon 33 contains the inorganic antibacterial agent 36a, the generation of malodor can be further reduced.
　上記３種の実施形態に係るマスク１の活性炭フィルターシート３０に用いられている球状微粒子活性炭３３について、以下に示した要領で脱臭試験を実施した。 The deodorization test was carried out on the spherical fine particle activated carbon 33 used in the activated carbon filter sheet 30 of the mask 1 according to the above three types of embodiments as shown below.
（試験概要）
　球状微粒子活性炭３３（実施例）と、２つの比較例について、メチルメルカプタン、硫化水素およびアセトアルデヒドのそれぞれに対する脱臭効果を、ガス検知管法により試験した。 (Examination outline)
The deodorizing effect on each of methyl mercaptan, hydrogen sulfide and acetaldehyde was tested by the gas detector tube method for the spherical fine particle activated carbon 33 (Example) and the two comparative examples.
（試験方法）
　実施例および比較例１、２をそれぞれ、におい袋に入れ、ヒートシールを施したのち、空気９Ｌを封入し、設定したガス濃度（試験条件参照）となるように試験対象ガスを添加した。これを静置し、経過時間ごとに袋内のガス濃度を、ガス検知管を用いて測定した。また、におい袋に実施例および比較例を入れずに同様の操作をした空試験も行った。 (Test method)
Examples and Comparative Examples 1 and 2 were placed in an odor bag, heat-sealed, and then filled with 9 L of air, and a gas to be tested was added so as to have a set gas concentration (see test conditions). This was allowed to stand, and the gas concentration in the bag was measured using a gas detector tube for each elapsed time. In addition, a blank test was also conducted in which the same operation was performed without putting Examples and Comparative Examples in the odor bag.
（実施例と比較例の説明）
　実施例：球状微粒子活性炭３３（Ｂ’ｓ　Ｗｉｐｅｒ（登録商標）、大木工藝製）
　なお、この球状微粒子活性炭３３には、無機抗菌剤３６ａ、消臭剤３６ｂ、芳香剤３６ｃなどの機能性物質は含まれていない。
　比較例１：赤松炭カプセル粉末（他社製）
　比較例２：赤松炭・竹炭袋入り粉末（他社製）
　図７（ａ）に実施例、図７（ｂ）に比較例１、図７（ｃ）に比較例２の各拡大写真（１００倍および１０００倍）を示した。図７（ｂ）（ｃ）に示すように、比較例１、２の粉末には尖った部分がある。 (Explanation of Examples and Comparative Examples)
Example: Spherical fine particle activated carbon 33 (B's Wiper (registered trademark), manufactured by Oki Kogei)
The spherical fine particle activated carbon 33 does not contain functional substances such as an inorganic antibacterial agent 36a, a deodorant 36b, and a fragrance 36c.
Comparative Example 1: Akamatsu Charcoal Capsule Powder (manufactured by another company)
Comparative example 2: Powder in Akamatsu charcoal / bamboo charcoal bag (manufactured by another company)
7 (a) shows Examples, FIG. 7 (b) shows Comparative Example 1, and FIG. 7 (c) shows enlarged photographs (100 times and 1000 times) of Comparative Example 2. As shown in FIGS. 7 (b) and 7 (c), the powders of Comparative Examples 1 and 2 have sharp portions.
（試験条件）
　（使用量）
　実施例：１ｇ、比較例１、２：各１ｇ
　（試験対象ガス）　かっこ内は初期ガス濃度
　・メチルメルカプタン（約８．０ｐｐｍ）：メチルメルカプタンナトリウム水溶液（１５％）に希硫酸を加えて発生させたガスを用いた。
　・硫化水素（約２０ｐｐｍ）：硫化鉄（II）に希硫酸を加えて発生させたガスを用いた。
　・アセトアルデヒド（約２０ｐｐｍ）：アセトアルデヒド（一級）から発生させたガスを用いた。
　（温度条件）　室温
　（測定時間）　ガス添加後、１０、３０および６０分後（ただし、測定値が定量下限未満になった時点で終了） (Test conditions)
(amount to use)
Example: 1 g, Comparative Examples 1 and 2: 1 g each
(Gas to be tested) Initial gas concentration in parentheses-Methyl mercaptan (about 8.0 ppm): A gas generated by adding dilute sulfuric acid to an aqueous solution of methyl mercaptan sodium (15%) was used.
-Hydrogen sulfide (about 20 ppm): A gas generated by adding dilute sulfuric acid to iron (II) sulfide was used.
-Acetaldehyde (about 20 ppm): Gas generated from acetaldehyde (first grade) was used.
(Temperature condition) Room temperature (Measurement time) 10, 30 and 60 minutes after gas addition (However, it ends when the measured value becomes less than the lower limit of quantification)
（試験結果）
　図８（ａ）にメチルメルカプタンに対する脱臭試験の結果（ガス濃度）を示し、図８（ｂ）に硫化水素に対する脱臭試験の結果（ガス濃度）を示し、図９（ａ）にアセトアルデヒドに対する脱臭試験の結果（ガス濃度）を示した。また、図９（ｂ）は、アセトアルデヒドに対する脱臭試験に関する、実施例試験、比較例１、２試験、空試験の時間経過後のガス濃度を表したグラフである。 (Test results)
FIG. 8A shows the result of the deodorization test for methyl mercaptan (gas concentration), FIG. 8B shows the result of the deodorization test for hydrogen sulfide (gas concentration), and FIG. 9A shows the deodorization test for acetaldehyde. The result (gas concentration) is shown. Further, FIG. 9B is a graph showing the gas concentration after the lapse of time in the example test, the comparative examples 1 and 2, and the blank test regarding the deodorization test for acetaldehyde.
　図８（ａ）（ｂ）に示すように、メチルメルカプタン、硫化水素については、実施例の場合には１０分程度でガス濃度が定量下限未満となり、比較例１、２の場合とは比較にならないほど臭いを多く吸着したことが判明した。なお、メチルメルカプタン、硫化水素のいずれについても、比較例１については１０分でガス濃度は低下したが、比較例２についてはガス濃度に変化はなかった（空試験のガス濃度と同じであった）。 As shown in FIGS. 8 (a) and 8 (b), the gas concentration of methyl mercaptan and hydrogen sulfide became less than the lower limit of quantification in about 10 minutes in the case of Examples, which was compared with the cases of Comparative Examples 1 and 2. It turned out that it adsorbed so much odor. For both methyl mercaptan and hydrogen sulfide, the gas concentration of Comparative Example 1 decreased in 10 minutes, but the gas concentration of Comparative Example 2 did not change (it was the same as the gas concentration of the blank test). ).
　また、アセトアルデヒドについては、図９（ａ）に示すように、ガス濃度が定量下限未満になるのに６０分かかったが、実施例と比較例１、２とを図９（ｂ）のグラフで比較すると、１０分程度でも比較例１、２よりも十分に多く臭いを吸着していることが判明した。 Regarding acetaldehyde, as shown in FIG. 9 (a), it took 60 minutes for the gas concentration to fall below the lower limit of quantification, but Examples and Comparative Examples 1 and 2 are shown in the graph of FIG. 9 (b). By comparison, it was found that the odor was adsorbed sufficiently more than in Comparative Examples 1 and 2 even in about 10 minutes.
　具体的には、１０分経過後の実施例のガス濃度は、比較例１のガス濃度の１／５、比較例２のガス濃度（空試験と同じ）の１／１０であった。また、３０分経過後の実施例のガス濃度は、比較例１のガス濃度の１／８、比較例２のガス濃度（空試験と同じ）の１／２０であった。また、６０分経過後の実施例のガス濃度は、比較例１のガス濃度の１／６未満、比較例２のガス濃度（空試験と同じ）の１／２０未満であった。 Specifically, the gas concentration of the example after 10 minutes had passed was 1/5 of the gas concentration of Comparative Example 1 and 1/10 of the gas concentration of Comparative Example 2 (same as the blank test). The gas concentration of the example after 30 minutes was 1/8 of the gas concentration of Comparative Example 1 and 1/20 of the gas concentration of Comparative Example 2 (same as the blank test). The gas concentration of the examples after 60 minutes was less than 1/6 of the gas concentration of Comparative Example 1 and less than 1/20 of the gas concentration of Comparative Example 2 (same as the blank test).
　このように球状微粒子活性炭３３はすぐれた脱臭効果があり、この球状微粒子活性炭３３が含まれた活性炭フィルターシート３０をマスク１のインナーシートとして用いることで、唾液や鼻水による臭いの発生を抑えることができる。 As described above, the spherical fine particle activated carbon 33 has an excellent deodorizing effect, and by using the activated carbon filter sheet 30 containing the spherical fine particle activated carbon 33 as the inner sheet of the mask 1, it is possible to suppress the generation of odor due to saliva and runny nose. can.
　また、活性炭フィルターシート３０は脱臭効果を有するだけではなく、唾液や鼻水などの水分を活性炭フィルターシート３０の基材シート３１で吸収することができ、酵素フィルターシート２０やマスク本体１０を長期間にわたり清潔な状態で使用することができる。 Further, the activated carbon filter sheet 30 not only has a deodorizing effect, but also can absorb water such as saliva and runny nose by the base sheet 31 of the activated carbon filter sheet 30, so that the enzyme filter sheet 20 and the mask body 10 can be used for a long period of time. It can be used in a clean state.
　また、活性炭フィルターシート３０の基材シート３１として酵素フィルターシート２０の繊維シート２１よりも目の細かいものを採用すれば、酵素フィルターシート２０を通過する花粉や塵、埃などの微生物以外のものを活性炭フィルターシート３０で吸着させることができる。 Further, if a material having a finer mesh than the fiber sheet 21 of the enzyme filter sheet 20 is used as the base sheet 31 of the activated carbon filter sheet 30, pollen, dust, dust and other substances other than microorganisms passing through the enzyme filter sheet 20 can be removed. It can be adsorbed by the activated carbon filter sheet 30.
　このような活性炭フィルターシート３０を用いれば、インナーシートである活性炭フィルターシート３０は頻繁に取り替え、酵素フィルターシート２０は長期間にわたり使用することができる。例えば、活性炭フィルターシート３０は毎日取り換える一方、酵素フィルターシート２０は２０日間程度、連続使用するようにしてもよい。 If such an activated carbon filter sheet 30 is used, the activated carbon filter sheet 30 which is an inner sheet can be replaced frequently, and the enzyme filter sheet 20 can be used for a long period of time. For example, the activated carbon filter sheet 30 may be replaced every day, while the enzyme filter sheet 20 may be used continuously for about 20 days.
　このような使い方をするためには、活性炭フィルターシート３０を取り返しやすい状態で口や鼻に直接接触するように配したうえで、図１～図３に示した実施形態を採用することが望ましい。 In order to use it in this way, it is desirable to arrange the activated carbon filter sheet 30 so as to be in direct contact with the mouth and nose in a state where it can be easily recovered, and then adopt the embodiments shown in FIGS. 1 to 3.
　特に図２や図３の実施形態を採用して、酵素フィルターシート２０をマスク本体１０と一体とするか、ポケット１２内に収納するようにする一方、活性炭フィルターシート３０は単体で手前側に配置するような構成とすれば、活性炭フィルターシート３０だけを取り替えやすくできる。 In particular, the embodiment of FIGS. 2 and 3 is adopted so that the enzyme filter sheet 20 is integrated with the mask body 10 or stored in the pocket 12, while the activated carbon filter sheet 30 is arranged on the front side by itself. With such a configuration, only the activated carbon filter sheet 30 can be easily replaced.
　このように、口や鼻に直接接触する活性炭フィルターシート３０を使い捨てにすれば、マスク本体１０や酵素フィルターシート２０を清潔な状態で長持ちさせることができる。また、活性炭フィルターシート３０および酵素フィルターシート２０は、洗浄して再利用してもよい。 By disposing of the activated carbon filter sheet 30 that comes into direct contact with the mouth and nose in this way, the mask body 10 and the enzyme filter sheet 20 can be kept clean for a long time. Further, the activated carbon filter sheet 30 and the enzyme filter sheet 20 may be washed and reused.
　また、球状微粒子活性炭３３は通常の活性炭とちがって、黒色汚れが発生せず、淡色系のマスク１や皮膚に色移りして、黒く汚れることを防止することができる。 Further, unlike ordinary activated carbon, the spherical fine particle activated carbon 33 does not generate black stains, and can prevent the color from transferring to the light-colored mask 1 or the skin and becoming black stains.
　また、活性炭フィルターシート３０には、球状微粒子活性炭３３だけではなく、通常の活性炭（例えば、上記試験の比較例１である赤松炭カプセル粉末）を付加してもよい。このような活性炭でも、臭い吸着効果を有しているため、活性炭フィルターシート３０としての機能に寄与する。なお、通常の活性炭は色移りしやすいが、図５（ｃ）のように、活性炭を樹脂層３４で覆ってしまえば色移りはしにくくでき、問題はない。 Further, not only the spherical fine particle activated carbon 33 but also ordinary activated carbon (for example, Akamatsu charcoal capsule powder which is Comparative Example 1 of the above test) may be added to the activated carbon filter sheet 30. Even such activated carbon has an odor adsorption effect, and therefore contributes to the function as the activated carbon filter sheet 30. The color of ordinary activated carbon is easily transferred, but as shown in FIG. 5C, if the activated carbon is covered with the resin layer 34, the color transfer can be difficult and there is no problem.
　１　　　　　　マスク
　１０　　　　　マスク本体
　１１　　　　　シート部
　１１ａ　　　　ひだ
　１２　　　　　ポケット
　１３　　　　　耳掛け部
　１５　　　　　マスク用フィルターシート
　２０　　　　　酵素フィルターシート
　２１　　　　　繊維シート
　２２　　　　　溶菌酵素
　３０　　　　　活性炭フィルターシート
　３１　　　　　基材シート
　３２　　　　　シート層（シート材）
　３３　　　　　球状微粒子活性炭
　３４　　　　　樹脂層
　３５　　　　　孔部
　３５ａ　　　　マクロ孔
　３５ｂ　　　　ミクロ孔
　３６ａ　　　　無機抗菌剤
　３６ｂ　　　　消臭剤
　３６ｃ　　　　芳香剤
　４０　　　　　細菌（ウイルス）
　４１　　　　　細胞壁（殻）
　４２　　　　　本体

  1 Mask 10 Mask body 11 Sheet part 11a Folds 12 Pocket 13 Ear hook part 15 Mask filter sheet 20 Enzyme filter sheet 21 Fiber sheet 22 Lysis enzyme 30 Activated carbon filter sheet 31 Base sheet 32 Sheet layer (sheet material)
33 Spherical fine particle activated carbon 34 Resin layer 35 Hole 35a Macro hole 35b Micro hole 36a Inorganic antibacterial agent 36b Deodorant 36c Air freshener 40 Bacteria (virus)
41 Cell wall (shell)
42 body

Claims (5)

  1. 　基材シートに、粒径を１５０～６００μｍとした、多孔質の球状微粒子活性炭を含ませてなる活性炭フィルターシートと、
    　溶菌酵素を繊維シートに含ませてなる酵素フィルターシートと、を備えたことを特徴とするマスク用フィルターシート。     An activated carbon filter sheet containing porous spherical fine particle activated carbon having a particle size of 150 to 600 μm in the base sheet.
    A filter sheet for masks, which comprises an enzyme filter sheet in which a lytic enzyme is contained in a fiber sheet.
  2. 　請求項１において、
    　前記球状微粒子活性炭には無機抗菌剤が収蔵されていることを特徴とするマスク用フィルターシート。     In claim 1,
    A filter sheet for a mask, characterized in that an inorganic antibacterial agent is stored in the spherical fine particle activated carbon.
  3. 　請求項１または２において、
    　前記酵素フィルターシートはマスク本体に一体に含まれていることを特徴とするマスク用フィルターシート。     In claim 1 or 2,
    The enzyme filter sheet is a mask filter sheet that is integrally included in the mask body.
  4. 　溶菌酵素を繊維シートに含ませてなる酵素フィルターシートに重ね合わせて、マスクのインナーシートとして使用される活性炭フィルターシートであって、
    　繊維よりなる基材シートに、粒径を１５０～６００μｍとした、多孔質の球状微粒子活性炭を含ませてなることを特徴とする活性炭フィルターシート。     An activated carbon filter sheet that is used as an inner sheet for masks by superimposing a lytic enzyme on an enzyme filter sheet that is contained in a fiber sheet.
    An activated carbon filter sheet comprising a base sheet made of fibers containing porous spherical fine particle activated carbon having a particle size of 150 to 600 μm.
  5. 　請求項４において、
    　前記球状微粒子活性炭の細孔には無機抗菌剤が収蔵されていることを特徴とする活性炭フィルターシート。

          In claim 4,
    An activated carbon filter sheet characterized in that an inorganic antibacterial agent is stored in the pores of the spherical fine particle activated carbon.
PCT/JP2020/011797 2020-03-17 2020-03-17 Mask filter sheet and activated carbon filter sheet WO2021186580A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3084928U (en) * 2001-09-28 2002-04-05 東洋科学株式会社 Antibacterial hygiene sheet
JP3097786U (en) * 2003-05-14 2004-02-05 アポロトレイディング株式会社 mask
JP2012152327A (en) * 2011-01-25 2012-08-16 Unitika Ltd Hygienic mask
JP2012211043A (en) * 2011-03-31 2012-11-01 Sony Corp Porous carbon material, adsorbent, orally administrable adsorbent, adsorbent for medical use, filler for blood purification column, adsorbent for water purification, cleansing agent, carrier, agent for extended release of drugs, cell culture scaffold, mask, carbon/polymer composite, adsorbing sheet, and functional food

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3084928U (en) * 2001-09-28 2002-04-05 東洋科学株式会社 Antibacterial hygiene sheet
JP3097786U (en) * 2003-05-14 2004-02-05 アポロトレイディング株式会社 mask
JP2012152327A (en) * 2011-01-25 2012-08-16 Unitika Ltd Hygienic mask
JP2012211043A (en) * 2011-03-31 2012-11-01 Sony Corp Porous carbon material, adsorbent, orally administrable adsorbent, adsorbent for medical use, filler for blood purification column, adsorbent for water purification, cleansing agent, carrier, agent for extended release of drugs, cell culture scaffold, mask, carbon/polymer composite, adsorbing sheet, and functional food

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