[go: up one dir, main page]

WO2016157916A1 - 炭酸ガス発生シート - Google Patents

炭酸ガス発生シート Download PDF

Info

Publication number
WO2016157916A1
WO2016157916A1 PCT/JP2016/001887 JP2016001887W WO2016157916A1 WO 2016157916 A1 WO2016157916 A1 WO 2016157916A1 JP 2016001887 W JP2016001887 W JP 2016001887W WO 2016157916 A1 WO2016157916 A1 WO 2016157916A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
sheet
carbon dioxide
layer
acid
Prior art date
Application number
PCT/JP2016/001887
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
さくら 本多
中山　靖章
夕子 齋藤
昴 藤村
瑞江 高木
稔典 広松
Original Assignee
王子ホールディングス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 王子ホールディングス株式会社 filed Critical 王子ホールディングス株式会社
Publication of WO2016157916A1 publication Critical patent/WO2016157916A1/ja

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
    • A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class

Definitions

  • the present invention relates to a carbon dioxide generating sheet, and more particularly, to a carbon dioxide generating sheet suitable for use on a skin or for wiping at the time of cleaning.
  • the carbon dioxide generating sheet of the present invention can be used in the fields of cosmetics, pharmaceutical parts, pharmaceuticals, cleaning supplies, miscellaneous goods, and the like.
  • Carbon dioxide gas is known to be effective in removing dirt such as protein and scale due to the physical force of bubbles and weak acidity.
  • a carbon dioxide generator containing a carbonate and an acid As a material for generating carbon dioxide, a carbon dioxide generator containing a carbonate and an acid is conventionally known (see, for example, Patent Documents 1 and 2).
  • water such as skin lotion
  • the carbonate and acid react with water to generate carbon dioxide.
  • Patent Document 3 employs sodium hydrogen carbonate and citric acid or sodium dihydrogen citrate as a carbon dioxide gas generating agent, water-permeable breathable nonwoven fabric, sodium hydrogen carbonate, coarse nonwoven fabric, citric acid or A sheet-shaped pack material having a five-layer structure obtained by sequentially laminating sodium dihydrogen citrate and a water-permeable breathable nonwoven fabric is disclosed.
  • Patent Document 3 when a user impregnates a sheet-like pack material with water such as lotion, the water is supplied to sodium bicarbonate and citric acid or sodium dihydrogen citrate through a water-permeable breathable nonwoven fabric. . Both sodium bicarbonate and citric acid or sodium dihydrogen citrate are soluble in water. Then, the dissolved solution comes into contact through the coarse nonwoven fabric and starts the reaction to generate carbon dioxide gas.
  • Patent Document 3 discloses that an intermediate layer has a water flow for an outer layer so that sodium hydrogen carbonate dissolved in water and citric acid or sodium dihydrogen citrate are in contact with each other through a gap between constituent fibers and easily react. It is disclosed to use a coarse nonwoven fabric different from a breathable nonwoven fabric. In other words, in the sheet-shaped pack material of Patent Document 3, a coarse nonwoven fabric that can facilitate the reaction cannot be used for the outer layer for some reason such as causing powder falling. Moreover, when the water-permeable breathable nonwoven fabric for outer layers is used for an intermediate
  • patent document 3 has shown extending generation
  • One object of the present invention is to provide a carbon dioxide gas generating sheet that is different from the structure of Patent Document 3 and is less likely to fall off and has good reactivity.
  • Another object of the present invention is to provide a carbon dioxide gas generating sheet having an excellent effect of sustaining carbon dioxide gas generation.
  • a laminate comprising a carbonate layer and an acid layer, comprising a water-permeable or water-absorbent sheet between the carbonate layer and the acid layer, wherein the carbonate layer and the acid layer comprise the water-permeable or water-absorbent sheet.
  • Carbon dioxide gas obtained by disposing a mixture of carbonate particles or acid particles and a heat-fusible resin on the surface of the adhesive sheet and melting the heat-fusible resin with heat Occurrence sheet.
  • the heat-fusible resin includes a resin selected from the group consisting of a particulate heat-fusible resin, a fibrous heat-fusible resin, and a mixture thereof.
  • At least one of the carbonate layer and the acid layer contains a water-absorbing material.
  • the carbon dioxide generating sheet described in 1. 4). A laminate including a carbonate layer and an acid layer, wherein the carbonate layer and the acid layer are provided adjacent to each other, and at least one of the carbonate layer and the acid layer includes a water-absorbing material.
  • Both the carbonate layer and the acid layer contain the water-absorbing material.
  • 3. A water-permeable or water-absorbent sheet is provided on the upper surface of at least one outer layer of the laminate. Or 5.
  • the carbon dioxide generating sheet described in 1. 7). 3. produced by a dry method; To 6.
  • the water-permeable or water-absorbent sheet contains a water-absorbing material. Or 7.
  • the carbon dioxide generating sheet includes a surface of the water-permeable or water-absorbent sheet and / or carbonic acid in which the carbonate particles contained in the carbonate layer and the acid particles contained in the acid layer are thermally fused. Since it is fixed in the salt layer and the acid layer, the phenomenon of powder falling off where the carbonate particles and the acid particles are peeled off from the sheet hardly occurs.
  • a carbon dioxide generating sheet is a laminate including a carbonate layer and an acid layer, and the carbonate layer and the acid layer are provided adjacent to each other, and the carbonate layer and the acid layer are At least one of the layers is a layer containing a water-absorbing material.
  • the carbonate or acid can be dispersed in the thickness direction of the layer due to the presence of the water-absorbing material. Further, the water-absorbing material can gradually permeate moisture. Therefore, when using the carbon dioxide gas generating sheet, the time for starting the reaction between the carbonate and the acid can be widened. As a result, the carbon dioxide gas generating sheet as a whole has a long duration. can do.
  • the carbonate or the acid is easily maintained in the layer due to the presence of the water absorbing material.
  • the shape of the carbon dioxide generating sheet is easily maintained when the carbonate layer and / or the acid layer contains a water-absorbing material. Therefore, it is possible to improve the yield of carbonate and / or acid during the production, storage and use of the carbon dioxide generating sheet, and prevent powder falling even when subjected to deformation such as folding. be able to. Therefore, loss of the carbon dioxide gas generating agent is prevented, leading to cost reduction. Further, the cost can be reduced by selecting the water-absorbing material itself.
  • the carbon dioxide generating sheet according to the first aspect of the present invention is a laminate including a carbonate layer and an acid layer, and includes a water-permeable or water-absorbent sheet between the carbonate layer and the acid layer,
  • the salt layer and the acid layer are obtained by disposing a mixture of carbonate particles or acid particles and a heat-fusible resin on the surface of the water-permeable or water-absorbent sheet and melting the heat-fusible resin by heat. It is obtained.
  • the carbonate particles are fixed in a state where a part thereof is covered with the heat-fusible resin.
  • the acid particles are fixed in a state where a part thereof is covered with the heat-fusible resin.
  • the carbon dioxide generating sheet of the present invention is manufactured by a dry method in order to prevent a reaction between a carbonate and an acid during the manufacturing process.
  • FIG. 1 is a diagram illustrating the configuration of the carbon dioxide generating sheet according to the first embodiment of the present invention for the purpose of illustration and not for the purpose of limitation.
  • the same reference numerals indicate the same components. For the same component, a duplicate description may be omitted.
  • the carbon dioxide generating sheet according to the first embodiment of the present invention shown in FIG. 1A includes a water-permeable or water-absorbent sheet 300, a carbonate layer 130, a water-permeable or water-absorbent sheet 300, an acid layer 230, The water-permeable or water-absorbent sheet 300 is laminated in order.
  • the carbonate layer 130 was formed through a process of passing a mixture of the carbonate particles 13 and the heat-fusible resin 16 on the surface of the water-soluble or water-absorbent sheet 300 and thermally melting the heat-fusible resin 16. Is a layer.
  • the acid layer 230 is formed through a step of passing a mixture of the carbonate particles 23 and the heat-fusible resin 16 on the surface of the water-soluble or water-absorbent sheet 300 and thermally melting the heat-fusible resin 16. Layer.
  • the carbonate particles 13 are fixed in the carbonate layer 130 in a state in which a part thereof is covered with a heat-fusible resin. Therefore, the carbonate particles 13 are unlikely to fall off from the carbon dioxide generating sheet, and moisture can come into contact with the carbonate when the carbon dioxide generating sheet is used. Since the heat-fusible resin and the carbonate particles are uniformly dispersed, the carbonate particles can be arranged uniformly in the plane.
  • the acid particles 23 are fixed in a state where a part thereof is covered with the heat-fusible resin. Therefore, the acid particles 23 are unlikely to fall off from the carbon dioxide generating sheet, and moisture can come into contact with the acid when the carbon dioxide generating sheet is used. Since the heat-fusible resin and the acid particles are uniformly dispersed, the acid particles can be uniformly arranged in the plane.
  • the water-permeable or water-absorbent sheet 300 is provided so as to cover the upper surfaces of the carbonate layer 130 and the acid layer 230, the possibility of carbonate or acid powder falling from the carbon dioxide generating sheet is further reduced. Can be made.
  • the water-permeable or water-absorbent sheet 300 corresponding to the outer layer of the carbon dioxide generating sheet is not an essential element in the present invention.
  • the carbon dioxide generating sheet shown in FIG. 1B is a water-permeable or water-absorbing sheet 300 provided so as to cover the upper surfaces of the carbonate layer 130 and the acid layer 230 in the configuration shown in FIG. A configuration in which one side is replaced with a film 400 having relatively low air permeability is shown.
  • the carbon dioxide gas generated during use is prevented or suppressed from being released from the surface on the film arrangement side. The effect that can be produced. Therefore, by applying the surface opposite to the surface on the film placement side to the skin, it becomes possible to apply the carbon dioxide gas to the skin in a concentrated manner and / or for a long time.
  • one or both of the carbonate layer 130 and the acid layer 230 may further include a water absorbing material.
  • the carbon dioxide generating sheet shown in FIG. 1C includes a water-permeable or water-absorbing sheet 300, a carbonate layer 100 containing a water-absorbing material, a water-permeable or water-absorbing sheet 300, an acid layer 230, It has the structure which laminated
  • the carbonate layer 100 containing the water-absorbing material is formed by arranging the absorbent material on the surface of the water-absorbing or water-absorbing sheet 300 in addition to the mixture of the carbonate particles 13 and the heat-fusible resin 16.
  • 16 is a layer formed through a process of thermally melting 16. In the carbonate layer 100 containing a water-absorbing material, the carbonate particles 13 and the absorbent material are fixed in a state of being partially covered by the heat-fusible resin 16.
  • the carbon dioxide generating sheet shown in FIG. 1D includes a water-permeable or water-absorbing sheet 300, an acid layer 200 containing a water-absorbing material, a water-permeable or water-absorbing sheet 300, a carbonate layer 130, It has a configuration in which a film 400 having relatively low air permeability as compared with the water absorbent sheet 300 is laminated in order.
  • the acid layer 200 including the water-absorbing material is disposed on the surface of the water-absorbing or water-absorbing sheet 300 in addition to the mixture of the acid particles 23 and the heat-fusible resin 16. It is a layer formed through a heat melting step. In the acid layer 200 including the water-absorbing material, the acid particles 23 and the absorbent material are fixed in a state where they are partially covered with the heat-fusible resin 16.
  • the absorbent material is blended only in one of the carbonate layer and the acid layer, but the absorbent material may be blended in both layers.
  • the structure in which the water absorbing material is further added to the carbonate layer and / or the acid layer has the same effect as the structure shown in FIG. 1A or FIG. Can be dispersed in the thickness direction of the layer due to the presence of the water-absorbing material. Further, the water-absorbing material can gradually permeate moisture. Therefore, when using the carbon dioxide gas generating sheet, the time for starting the reaction between the carbonate and the acid can be widened. As a result, the carbon dioxide gas generating sheet as a whole has a long duration. can do.
  • the carbonate or the acid is easily maintained in the layer due to the presence of the water absorbing material.
  • the shape of the carbon dioxide generating sheet is easily maintained when the carbonate layer and / or the acid layer contains a water-absorbing material. Therefore, it is possible to improve the yield of carbonate and / or acid during the production, storage and use of the carbon dioxide generating sheet, and prevent powder falling even when subjected to deformation such as folding. be able to. Therefore, loss of the carbon dioxide gas generating agent is prevented, leading to cost reduction. Further, the cost can be reduced by selecting the water-absorbing material itself.
  • the carbon dioxide generating sheets shown in FIGS. 1A to 1D each include a plurality of water-permeable or water-absorbing sheets 300, but these layers are not necessarily made of the same material.
  • the water-permeable or water-absorbent sheet 300 corresponding to the intermediate layer of the carbon dioxide generating sheet may be a water-permeable or water-absorbent sheet 500 (not shown) having high water retention and capable of gradually releasing water inside. Good.
  • water-permeable or water-absorbent sheet 500 having such a high water retention property is disposed between the carbonate layer 130 and the acid layer 230, water such as skin lotion applied to one surface at the time of use is reduced in time. Can gradually penetrate into the other surface. Therefore, the reaction start time of the carbonate and the acid can be widened, and the carbon dioxide gas generation as the whole carbon dioxide gas generating sheet can be maintained.
  • the outer layer water-permeable or water-absorbent sheet 300 may also be the same material as the water-permeable or water-absorbent sheet 500 having high water retention used for the intermediate layer.
  • the carbonate layer is a layer containing carbonate and / or bicarbonate.
  • any grades that can be used in cosmetics can be used without any particular limitation. When used for other purposes, no special grades are specified.
  • sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, potassium carbonate, potassium bicarbonate, calcium carbonate, magnesium carbonate, magnesium bicarbonate, calcium bicarbonate, or a derivative thereof can be used.
  • Two or more carbonates and / or bicarbonates may be used in combination.
  • the carbonate and / or bicarbonate is a solid composition, for example, preferably in the form of particles.
  • the carbonate and / or bicarbonate may be in a form supported on a support such as silica.
  • the carbonate and / or bicarbonate may contain water as crystal water.
  • the carbonate layer does not contain water that causes alteration such as hydrolysis and reaction with an acid.
  • the carbonate or bicarbonate used in the present invention is preferably particles having an average particle diameter of 5 to 5000 ⁇ m. When the average particle size is 5 to 5000 ⁇ m, the dropout of the particles is small, and a good feeling of use can be obtained with an appropriate granular feeling.
  • the carbonate layer may further contain a heat-fusible resin in addition to the carbonate and / or bicarbonate particles.
  • the carbonate and / or bicarbonate particles are fixed in the carbonate layer in a state where a part thereof is covered with the heat-fusible resin.
  • Such a carbonate layer is heated by heat by, for example, disposing a mixture of carbonate and / or bicarbonate particles and a heat-fusible resin on the surface of another layer constituting the carbon dioxide generating sheet. It can be formed by melting a fusible resin.
  • the acid layer is a layer containing a solid acid.
  • the acid can be used without particular limitation as long as it is of a grade that can be used in cosmetics, and no special grade is specified when used for other purposes.
  • malonic acid maleic acid, citric acid, malic acid, tartaric acid, succinic acid, fumaric acid, hyaluronic acid, sodium dihydrogen phosphate or a derivative thereof, a substance that is hydrolyzed to generate an acid, and the like can be used.
  • Two or more acids may be used in combination.
  • the acid is a solid composition, and is preferably in the form of particles, for example.
  • the acid may contain water as crystal water. When water of crystallization is included, the solubility in water increases and the reactivity is improved.
  • the acid layer does not contain water that causes alteration such as hydrolysis and reaction with carbonate.
  • the acid used in the present invention is preferably particles having an average particle size of 5 to 5000 ⁇ m.
  • the average particle size is 5 to 5000 ⁇ m, the dropout of the particles is small, and a good feeling of use can be obtained with an appropriate granular feeling.
  • the average particle size is reduced, the dissolution rate is increased, and the reaction proceeds immediately after being wetted with water, so that the amount of CO 2 gas generated at the initial stage of use is increased.
  • a granular feeling can be reduced.
  • increasing the average particle size has the effect of extending the duration of carbon dioxide gas generation because dissolution gradually proceeds when contacted with water.
  • increasing the average particle diameter has the effect of reducing particle dropout.
  • the acid layer may further contain a heat-fusible resin in addition to the acid particles.
  • the acid particles are fixed in a state where a part thereof is covered with the heat-fusible resin in the acid layer.
  • Such an acid layer is formed by, for example, arranging a mixture of acid particles and a heat-fusible resin on the surface of one of the other layers constituting the carbon dioxide generating sheet, and heat-fusing the resin by heat. It can be formed by melting.
  • the heat-fusible resin in the present invention serves as a binder for fixing carbonate particles or acid particles in a state where a part of the carbonate particles or acid particles is coated in the carbonate layer and / or acid layer.
  • the heat-fusible resin is, for example, uniformly mixed with carbonate particles or acid particles, placed on the surface of one of the other layers constituting the carbon dioxide generating sheet, heated and melted, In the salt layer and / or the acid layer, the carbonate particles or the acid particles can be fixed in a state of covering a part thereof.
  • the heat-fusible resin can be in the form of particles, fibers, or any other form.
  • the heat-fusible resin is preferably in the form of particles from the viewpoint of uniform mixing with carbonate particles or acid particles in the layer forming step. Moreover, it is desirable that the heat-fusible resin is fibrous from the viewpoint of joining a plurality of carbonate particles or a plurality of acid particles.
  • the heat-fusible resin can be in the form of a shortcut fiber, for example. Various types of heat-fusible resins may be used in combination.
  • heat-fusible resin examples include low density polyethylene (PE) having a melting point of 95 ° C. to 130 ° C., high density polyethylene having a melting point of 120 ° C. to 140 ° C., homopolymer or block copolymer having a melting point of 160 ° C. to 165 ° C.
  • PE low density polyethylene
  • high density polyethylene having a melting point of 120 ° C. to 140 ° C.
  • homopolymer or block copolymer having a melting point of 160 ° C. to 165 ° C.
  • Polypropylene (PP) made of a copolymer, a polypropylene made of a copolymer having a melting point of 135 ° C to 150 ° C, a low melting point polyethylene terephthalate (PET) having a melting point of 110 to 190 ° C, a low melting point polyamide having a melting point of 100 to 130 ° C, a melting point of 110 ° C Examples thereof include low-melting polylactic acid having a melting point of ⁇ 150 ° C. and polybutylene succinate having a melting point of 115 ° C.
  • a thermoplastic resin having a melting point exceeding 110 ° C. is preferably used in the present invention. Two or more kinds of heat-fusible resins may be used in combination.
  • the fineness of the heat-fusible fiber is preferably 1 dtex to 120 dtex, and more preferably 1 dtex to 85 dtex.
  • the average fiber length of the heat-fusible fiber is preferably 1 to 100 mm, more preferably 1 to 60 mm, and further preferably 2 to 30 mm. When the fineness and average fiber length of the heat-fusible fiber are within the above ranges, the web layer can be easily formed, and a uniform binding force and a dispersed state can be easily obtained.
  • the average particle size of the heat-fusible particles is preferably 1 to 1,000 ⁇ m, and more preferably 10 to 800 ⁇ m.
  • the average particle size of the heat-fusible resin can be appropriately selected within a range in which the carbonate and acid particles to be used are not completely covered.
  • the above heat-fusible resin may be a composite of two or more components.
  • core-sheath fibers in which resins having different melting points are combined, side-by-side fibers using different resins in a cross section perpendicular to the longitudinal direction, and core-shell particles having a core and a shell are included.
  • core-sheath fibers are preferably used because different types of resins can be easily combined.
  • a core-sheath fiber having a melting point of the sheath part lower than that of the core part is preferably used.
  • a PP / PE composite core-sheath fiber provided with a core part made of polypropylene fiber (melting point 160 ° C.) and a sheath part made of polyethylene (melting point 130 ° C.) formed on the outer periphery of the core part can be mentioned.
  • core sheath fibers include, for example, PET / low melting point PET composite core sheath fiber, high density polyethylene / low density polyethylene composite core sheath fiber, polyethylene / low melting point PET composite core sheath fiber, polyamide / low melting point polyamide composite.
  • core-sheath fibers polylactic acid / low melting point polylactic acid composite core-sheath fibers, and polylactic acid / polybutylene succinate composite core-sheath fibers.
  • core-sheath fibers have a melting point of the sheath part exceeding 110 ° C., and such core-sheath fibers are preferably used in the present invention.
  • the carbon dioxide generating sheet according to the present invention can provide a sheet strength while ensuring a void in the sheet, and can provide a soft and excellent sheet.
  • the composite of two or more components as described above can provide heat-fusibility due to the presence of the heat-fusible resin exposed to the outside, and can function as a binder. Therefore, these composites can be blended as a heat-fusible resin in the present invention.
  • a water-absorbing material may be contained in at least one of the carbonate layer and the acid layer.
  • the water-absorbing material include natural fibers such as pulp, hemp, cotton, silk, wool, and mineral fibers, regenerated fibers such as rayon, and synthetic fibers such as polylactic acid and nylon.
  • the water absorbing material can be used, for example, in the form of a defibrated chopped fiber. Two or more water-absorbing materials may be used in combination.
  • an auxiliary agent in the form of particles such as water-absorbing resin particles can be used.
  • the water-absorbing resin particles include carboxymethyl cellulose, polyvinyl alcohol, and a polymer absorber (SAP).
  • Carbonate or acid can be dispersed in the layer due to the presence of the water-absorbing material.
  • the absorbent material of the present invention can absorb and retain water and carbonates or acids dissolved in water when using the carbon dioxide generating sheet, while being able to release slowly. Moisture can be gradually infiltrated in the carbon dioxide generating sheet. Therefore, when using the carbon dioxide gas generating sheet, the time for starting the reaction between the carbonate and the acid can be widened. As a result, the carbon dioxide gas generating sheet as a whole has a long duration. can do.
  • One or a plurality of effect accelerators can be blended in the carbon dioxide gas generating sheet of the present invention depending on the application.
  • Examples of the effect promoter include: oily base, moisturizer, touch improver, surfactant, polymer, thickener / gelator, solvent, propellant, antioxidant, reducing agent, oxidizing agent, preservative , Antibacterial agents, chelating agents, pH adjusters, acids, alkalis, powders, inorganic salts, UV absorbers, whitening agents, vitamins and their derivatives, anti-inflammatory agents, anti-inflammatory agents, hair-growth agents, blood circulation promoters, Stimulants, hormones, anti-wrinkle agents, anti-aging agents, squeeze agents, cooling sensations, warming sensations, wound healing promoters, stimulation relieving agents, analgesics, cell activators, plant / animal / microbe extracts, antipruritics , Exfoliating / dissolving agent, antiperspirant, refreshing agent, astringent, enzyme, nucleic acid, fragrance, pigment, colorant, dye, pigment, metal-containing compound, unsaturated monomer, polyhydric alcohol, polymer additive Anti-inflammatory analges
  • the effect accelerator can be blended in one or both of the carbonate layer and the acid layer, for example. It can also be added to other layers.
  • Water-permeable or water-absorbent sheet As the water-permeable or water-absorbent sheet 300, an arbitrary sheet can be used among a sheet having a property of passing moisture (water permeability) and a sheet having a property of absorbing moisture (water absorption). As a sheet
  • the sheet having the property of absorbing moisture (water absorption) a sheet that can take in and retain moisture and release the moisture inside can be used.
  • moisture content which can be applied to this invention is a kind of sheet
  • the water-permeable or water-absorbent sheet 300 has a water absorption rate of 60 seconds or less, more preferably 30 seconds or less, measured according to the sedimentation rate measurement method defined in JIS L1907 standard.
  • the water absorption (or water passage) speed by the dropping method defined in JIS L1907 standard is 60 seconds or less, and more preferably 30 seconds or less. In the water-permeable or water-absorbent sheet 300, the lower the water absorbency, the faster the water is passed.
  • the water-permeable or water-absorbent sheet 300 can be, for example, a nonwoven fabric, a cloth, or another sheet having a mesh structure, and can be, for example, a special nonwoven fabric such as Warif (registered trademark).
  • any sheet having a property capable of gradually releasing moisture passing through or absorbed inside over time can be used.
  • the surface of the water-permeable or water-absorbent sheet that is the outer layer of the carbon dioxide generating sheet may be subjected to surface treatment such as unevenness.
  • the use of a thick sheet or a low-density sheet has an effect of reducing the graininess appearing on the outer surface of the carbon dioxide generating sheet.
  • a thin sheet or a sheet with high water permeability and air permeability is used, it is difficult to prevent moisture from entering from the surface of the carbon dioxide generating sheet and releasing the generated carbon dioxide to the outside. Easy to get.
  • a water-permeable or water-absorbent sheet is appropriately selected according to the use and purpose.
  • the film 400 has flexibility such that the carbon dioxide generating sheet can be applied along the skin or a curved surface when in use, and other layers of the carbon dioxide generating sheet, in particular, the water-permeable or water-absorbing sheet 300 Any film having a relatively low air permeability can be used.
  • the air permeability measured by the “fabric and knitted fabric test method” defined in Japanese Industrial Standard JIS L1096: 2010 is preferably 200 cm 3 / cm 2 / s or less, more preferably 150 cm 3 / cm 2 / s. s or less films can be used.
  • This air permeability is the amount of air permeating the film per unit area and unit time when a predetermined pressure is applied, and the larger the value, the higher the air permeability.
  • the other layer of the carbon dioxide generating sheet in particular, a film having a relatively low air permeability as compared with the water-permeable or water-absorbent sheet, the carbon dioxide permeation can be directed.
  • the film examples include resin films such as polyester, polyvinyl alcohol, polyethylene, polypropylene, and a composite film of polyethylene and polypropylene.
  • the carbonate and acid in the carbon dioxide generating sheet are preferably used in chemical equivalents, but considering the effect on the skin, the acid is over-blended and the pH after reaction is about 5 It can also be adjusted so that Moreover, the preferable compounding ratio of carbonate and acid may differ depending on the difference in solubility due to factors such as the particle diameter of carbonate and acid, and can be adjusted as appropriate.
  • the content ratio (mass basis) of the carbonate or acid and the heat-fusible resin can be, for example, 2/98 to 98/2, and 5/95 to 95 / 5 and can be 10/90 to 90/10.
  • the ratio is in the above range, the carbonate and acid in the in-plane direction of the carbon dioxide generating sheet can be blended uniformly, and powder falling can be suppressed.
  • the content ratio (mass basis) of the carbonate or acid, the heat-fusible resin, and the absorbent material is, for example, 2/49 / 49-96 / 2/2, 6/47 / 47-94 / 3/3, and 10/45 / 45-90 / 5/5.
  • the carbonate and the acid can be uniformly disposed in the in-plane direction of the carbon dioxide generating sheet, and can be dispersed in the layer due to the presence of the water-absorbing material. it can.
  • the absorbent material of the present invention can absorb and retain water and carbonates or acids dissolved in water when using the carbon dioxide generating sheet, while being able to release slowly. Moisture can be gradually infiltrated in the carbon dioxide generating sheet. Therefore, when using the carbon dioxide gas generating sheet, the time for starting the reaction between the carbonate and the acid can be widened. As a result, the carbon dioxide gas generating sheet as a whole has a long duration. can do.
  • an appropriate amount of one or more effect promoters can be blended in one or more of the carbonate layer, acid layer, and other layers.
  • the basis weight of the carbon dioxide generating sheet can be appropriately set according to the application. For example, it is preferably 30 to 300 g / m 2 .
  • ⁇ Method for producing carbon dioxide generating sheet> As a method for producing a carbon dioxide generating sheet according to the first aspect of the present invention, for example, heat fusion such as acid particles or carbonate particles and polyethylene (PE), for example, on a carrier sheet for conveying a web layer A uniform mixture with a water-soluble resin is disposed, and a web layer that becomes a water-permeable or water-absorbent sheet is laminated thereon, and further, carbonate particles or acid particles and heat fusion such as polyethylene (PE) are further formed thereon.
  • a uniform mixture with an adhesive resin is disposed, a carrier sheet is further disposed thereon, and the heat-fusible resin is melted by heat treatment and joined.
  • the water-permeable or water-absorbent sheet of the present invention may be used for the carrier sheet to obtain a carbon dioxide generating sheet having the layer configuration according to the first aspect of the present invention.
  • the carbon dioxide generating sheet having the layer structure according to the first aspect of the present invention is obtained by using an arbitrary film having a relatively low air permeability as compared with other layers as one of the carrier sheets. Good.
  • the carrier sheet is not essential in the present invention, and may be peeled off from the formed laminate after the heat treatment. In order to prevent the reaction between the carbonate and the acid during production, in the present invention, these laminations are performed by a dry method. As another embodiment, for example, there is a method using a web forming apparatus that employs an airlaid method.
  • the method for producing a carbon dioxide generating sheet of this embodiment that employs the airlaid method includes a defibrating step, a mixing step, a web forming step, and a binding step.
  • the defibrating step is a step of defibrating a shortcut fiber by defibrating a heat-fusible resin in the form of a shortcut fiber with an air flow.
  • an air flow is formed by a blower or the like, the shortcut fiber is supplied to the air flow, and the fiber is defibrated by the stirring effect of the air flow.
  • the defibrating method it is preferable to defibrate with a swirling air flow.
  • the shortcut fiber can be sufficiently defibrated, and the dispersibility of the defibrated shortcut fiber can be further increased when forming the air laid web by the air laid method. .
  • a defibrating method using a swirling air stream for example, a method of putting a shortcut fiber into a blower and defibrating with a blower can be mentioned. Further, there is a method in which air is sent along a circumferential direction in a cylindrical container by a blower to form a swirling flow, a shortcut fiber is supplied into the swirling flow, and stirring to defibrate.
  • the flow rate of the air flow is appropriately selected according to the amount of the shortcut fiber, but is usually in the range of 10 to 150 m / sec.
  • the mixing step is a step of obtaining a web raw material by mixing a heat-fusible resin in the form of a defibrating shortcut fiber and carbonate or acid.
  • any other material can be mixed at the same time.
  • the shape of any other material may be fibrous or particulate.
  • Examples of arbitrary other materials include auxiliary agents added as necessary, such as water-absorbing resin particles and effect accelerators. There is no particular limitation on the order of addition of these materials, and these materials can be added by, for example, spraying or the like in a step after the mixing step.
  • the mixing step may be after the defibrating step or at the same time as the defibrating step.
  • the mixing step is performed simultaneously with the defibrating step, the defibrating shortcut fiber and carbonate or acid are mixed using an air flow in the defibrating step. Further, carbonate or acid powder may be added to the web forming line of the defibrating shortcut fiber in the particle spraying step described later and mixed.
  • a web formation process is a process of obtaining an airlaid web from a web raw material by the airlaid method.
  • the airlaid method is a method of forming a web by randomly depositing fibers three-dimensionally using an air flow.
  • the particle spraying step is a step of blending the powder into the web raw material by a known method. Either a method of forming a web by mixing powder with fibers or a method of dispersing on the surface of the web or carrier sheet may be used.
  • the web forming apparatus 1 includes a conveyor 10, a gas permeable endless belt 20, a fiber mixture supply unit 30, a first carrier sheet supply unit 40, a second carrier sheet supply unit 50, and a suction box 60.
  • the conveyor 10 is composed of a plurality of rollers 11.
  • the air permeable endless belt 20 is mounted on the conveyor 10 and rotates.
  • the fiber mixture supply means 30 supplies the fiber mixture to the gas permeable endless belt 20 together with the air flow.
  • the first carrier sheet supply means 40 supplies the first carrier sheet 41 toward the gas permeable endless belt 20.
  • the second carrier sheet supply means 50 supplies the second carrier sheet 51 toward the first carrier sheet 41 that has passed through the air-permeable endless belt 20.
  • the suction box 60 sucks the air permeable endless belt 20 from the inside thereof.
  • the fiber mixture supply means 30 is installed above the air permeable endless belt 20
  • the first carrier sheet supply means 40 is installed upstream of the air permeable endless belt 20
  • the second carrier sheet is installed downstream of the air permeable endless belt 20.
  • the conveyor 10 is driven by rotating the rollers 11 in the same direction to rotate the air permeable endless belt 20. Further, the first carrier sheet 41 is fed out from the first carrier sheet supply means 40 so as to come into contact with the permeable endless belt 20.
  • the fiber mixture is lowered together with the air flow from the fiber mixture supply means 30, and the fiber mixture is dropped onto the first carrier sheet 41 on the permeable endless belt 20. , Deposit. Thereby, the air laid web A is formed.
  • the second carrier sheet 51 is supplied from the second carrier sheet supply means 50 on the air laid web A to obtain an air laid web-containing laminated sheet.
  • the binding step by the thermal bond method is a step of heat-treating the air laid web and binding the defibrating shortcut fibers with a heat-fusible resin.
  • the heat treatment of the air laid web includes hot air treatment and infrared irradiation treatment, and hot air treatment is preferable from the viewpoint of low cost of the apparatus.
  • the air laid web is contacted with a through air dryer provided with a rotating drum having air permeability on the peripheral surface and heat treated (hot air circulating rotary drum method), and the air laid web is passed through a box type dryer.
  • a through air dryer provided with a rotating drum having air permeability on the peripheral surface and heat treated
  • the air laid web is passed through a box type dryer.
  • Examples include a method of heat treatment by passing hot air through an air laid web (hot air circulation conveyor oven method).
  • the laminated sheet may be subjected to hot air treatment.
  • the first carrier sheet and the second carrier sheet can be peeled from the air laid web after the hot air treatment.
  • the heat treatment temperature may be a temperature at which the heat-fusible resin melts.
  • materials such as PP and PE that are generally used for thermal bonding it is desirable to set the heating temperature to 115 ° C. or higher.
  • the binding step After the binding step, it may be compressed through a heating roll for the purpose of finely adjusting the thickness and density of the carbon dioxide generating sheet.
  • the carbonate or acid particles and the heat-fusible resin can be blended uniformly. Therefore, gas can be generated uniformly in the in-plane direction of the sheet.
  • the carbonate or acid By blending the carbonate or acid with the heat-fusible resin, the carbonate or acid can be firmly fixed with the heat-fusible resin as a binder in the carbon dioxide generating sheet, so that powder falling can be prevented. .
  • the carbon dioxide generating sheet according to the second aspect of the present invention is a laminate including a carbonate layer and an acid layer, and the carbonate layer and the acid layer are provided adjacent to each other. At least one of them is a layer containing a water absorbing material.
  • the carbon dioxide generating sheet according to the second aspect of the present invention is manufactured by a dry method in order to prevent a reaction between the carbonate and the acid during the manufacturing process.
  • FIG. 2 is a diagram showing the configuration of the carbon dioxide generating sheet according to the second aspect of the present invention for the purpose of illustration and not for the purpose of limitation.
  • the same reference numerals indicate the same components. For the same component, a duplicate description may be omitted.
  • 2 (a) and 2 (b) are examples in which one of the carbonate layer and the acid layer is a layer containing a water-absorbing material, and the other is a layer not containing the water-absorbing material.
  • the carbon dioxide generating sheet shown in FIG. 2A includes an acid layer 200 containing a water-absorbing material, a carbonate layer 120 containing no water-absorbing material, and a water-permeable or water-absorbing sheet 300 in order. It has a laminated structure.
  • the carbon dioxide generating sheet shown in FIG. 2B is formed by sequentially laminating a carbonate layer 100 containing a water absorbing material, an acid layer 220 not containing a water absorbing material, and a water permeable or water absorbing sheet 300. It has a configuration.
  • 2 (a) and 2 (b) include a water-permeable or water-absorbent sheet 300 on the surface. Therefore, at the time of use, water such as skin lotion can be sufficiently permeated to promote the reaction between the carbonate and the acid. Further, since the water-permeable or water-absorbent sheet 300 is provided so as to cover the upper surfaces of the layers 120 and 220 that do not contain the water-absorbing material, it prevents the carbonate or acid from falling off the carbon dioxide generating sheet. Can do.
  • the water-permeable or water-absorbent sheet 300 is not an essential element in the present invention.
  • FIG. 2C shows an example in which both the carbonate layer 100 and the acid layer 200 are layers containing a water-absorbing material. Since both the carbonate layer and the acid layer contain water-absorbing materials, the distribution of the carbonate or acid in the thickness direction can be expanded, and moisture can be gradually infiltrated during use, so that the reaction between the carbonate and acid starts. Time can be given a range. Therefore, the carbon dioxide generation as the whole carbon dioxide generation sheet can be maintained.
  • 2 (d) and 2 (e) are examples in which a water-permeable or water-absorbent sheet 300 is further laminated on one side or both sides of the configuration shown in FIG. 2 (c). Since the water-permeable or water-absorbent sheet 300 is included on the surface, water such as skin lotion can be sufficiently permeated or retained during use to promote the reaction between the carbonate and the acid. In addition, when the carbon dioxide generating sheet of the present invention includes a plurality of layers of the water-permeable or water-absorbent sheet 300, they are not necessarily the same material. When the sheet 300 is provided on the surface, the acid or base can be prevented from coming into direct contact with the skin, so that there is an effect of buffering stimulation by the acid or alkali.
  • the carbon dioxide generating sheet shown in FIG. 2 (f) has a relatively low air permeability film 400 on the surface that does not have the water-permeable or water-absorbing sheet 300, compared to the structure shown in FIG. 2 (d). This is an example.
  • the carbonate layer is a layer containing carbonate and / or bicarbonate.
  • carbonate or bicarbonate when used as a cosmetic, any grade that can be used in cosmetics can be used without any particular limitation. When used for other purposes, no particular grade is specified.
  • sodium carbonate, sodium bicarbonate, sodium sesquicarbonate, potassium carbonate, potassium bicarbonate, calcium carbonate, magnesium carbonate, magnesium bicarbonate, calcium bicarbonate, or a derivative thereof can be used. Two or more carbonates and / or bicarbonates may be used in combination.
  • the carbonate and / or bicarbonate is a solid composition, for example, preferably in the form of particles.
  • the carbonate and / or bicarbonate may be in a form supported on a support such as silica.
  • the carbonate and / or bicarbonate may contain water as crystal water. When water of crystallization is included, the solubility in water increases and the reactivity is improved. However, from the viewpoint of storage stability, it is preferable that the carbonate layer does not contain water that causes alteration such as hydrolysis and reaction with an acid.
  • the carbonate layer can contain a heat-fusible resin and an effect accelerator.
  • the carbonate or bicarbonate used in the present invention is preferably particles having an average particle diameter of 5 to 5000 ⁇ m. When the average particle size is 5 to 5000 ⁇ m, the dropout of the particles is small, and a good feeling of use can be obtained with an appropriate granular feeling.
  • the acid layer is a layer containing a solid acid.
  • the acid can be used without particular limitation as long as it is of a grade that can be used in cosmetics, and no special grade is specified when used for other purposes.
  • malonic acid maleic acid, citric acid, malic acid, tartaric acid, succinic acid, fumaric acid, hyaluronic acid, sodium dihydrogen phosphate or a derivative thereof, a substance that is hydrolyzed to generate an acid, and the like can be used.
  • Two or more acids may be used in combination.
  • the acid is a solid composition, and is preferably in the form of particles, for example.
  • the acid may contain water as crystal water.
  • the acid layer does not contain water that causes alteration such as hydrolysis and reaction with carbonate.
  • the acid layer can contain a heat-fusible resin and an effect accelerator.
  • the acid used in the present invention is preferably particles having an average particle size of 5 to 5000 ⁇ m. When the average particle size is 5 to 5000 ⁇ m, the dropout of the particles is small, and a good feeling of use can be obtained with an appropriate granular feeling.
  • the average particle size When the average particle size is reduced, the dissolution rate is increased, and the reaction proceeds immediately after being wetted with water, so that the amount of CO 2 gas generated at the initial stage of use is increased. Moreover, when using it for skin, a granular feeling can be reduced. On the other hand, increasing the average particle size has the effect of extending the duration of carbon dioxide gas generation because dissolution gradually proceeds when contacted with water. In addition, increasing the average particle diameter has the effect of reducing particle dropout.
  • a water-absorbing material may be contained in at least one of the carbonate layer and the acid layer.
  • the layer containing the water-absorbing material is a layer containing the water-absorbing material in the second aspect of the present invention.
  • Water-absorbing material include natural fibers such as pulp, hemp, cotton, silk, wool, mineral fibers, regenerated fibers such as rayon, polylactic acid, nylon, polyvinyl alcohol (PVA), and synthetic fibers such as polymer absorbent fibers (SAF). Fibers can be used.
  • the water absorbing material can be used, for example, in the form of a defibration shortcut fiber. Two or more water-absorbing materials may be used in combination.
  • an auxiliary agent in the form of particles such as water-absorbing resin particles can be used as the water-absorbing resin particles can be used. Examples of the water-absorbing resin particles include carboxymethyl cellulose, polyvinyl alcohol, and a polymer absorber (SAP).
  • the carbonate or acid can be dispersed in the layer due to the presence of the water-absorbing material, and the distribution can be widened in the thickness direction.
  • the absorbent material of the present invention can absorb and retain water and carbonates or acids dissolved in water when using the carbon dioxide generating sheet, while being able to release slowly. Moisture can be gradually infiltrated in the carbon dioxide generating sheet. Therefore, when using the carbon dioxide gas generating sheet, the time for starting the reaction between the carbonate and the acid can be widened. As a result, the carbon dioxide gas generating sheet as a whole has a long duration. can do.
  • One or a plurality of effect accelerators can be blended in the carbon dioxide gas generating sheet of the present invention depending on the application.
  • Examples of the effect promoter include: oily base, moisturizer, touch improver, surfactant, polymer, thickener / gelator, solvent, propellant, antioxidant, reducing agent, oxidizing agent, preservative , Antibacterial agents, chelating agents, pH adjusters, acids, alkalis, powders, inorganic salts, UV absorbers, whitening agents, vitamins and their derivatives, anti-inflammatory agents, anti-inflammatory agents, hair-growth agents, blood circulation promoters, Stimulants, hormones, anti-wrinkle agents, anti-aging agents, squeeze agents, cooling sensations, warming sensations, wound healing promoters, stimulation relieving agents, analgesics, cell activators, plant / animal / microbe extracts, antipruritics , Exfoliating / dissolving agent, antiperspirant, refreshing agent, astringent, enzyme, nucleic acid, fragrance, pigment, colorant, dye, pigment, metal-containing compound, unsaturated monomer, polyhydric alcohol, polymer additive Anti-inflammatory analges
  • the effect accelerator can be blended in one or both of the carbonate layer and the acid layer, for example. It can also be added to other layers.
  • the heat-fusible resin in the present invention is a binder resin that binds the water-absorbing material and carbonate or acid.
  • the heat-fusible resin has an effect of imparting strength to the carbon dioxide generating sheet, and the shape is easily maintained.
  • the heat-fusible resin may be in the form of fibers or particles. From the viewpoint of higher strength, the heat-fusible resin is preferably fibrous. The heat-fusible resin may be in the form of a shortcut fiber, for example.
  • heat-fusible resin examples include low density polyethylene (PE) having a melting point of 95 ° C. to 130 ° C., high density polyethylene having a melting point of 120 ° C. to 140 ° C., homopolymer or block copolymer having a melting point of 160 ° C. to 165 ° C.
  • PE low density polyethylene
  • high density polyethylene having a melting point of 120 ° C. to 140 ° C.
  • homopolymer or block copolymer having a melting point of 160 ° C. to 165 ° C.
  • Polypropylene (PP) made of a copolymer, a polypropylene made of a copolymer having a melting point of 135 ° C to 150 ° C, a low melting point polyethylene terephthalate (PET) having a melting point of 110 to 190 ° C, a low melting point polyamide having a melting point of 100 to 130 ° C, a melting point of 110 ° C Examples thereof include low-melting polylactic acid having a melting point of ⁇ 150 ° C. and polybutylene succinate having a melting point of 115 ° C.
  • a thermoplastic resin having a melting point exceeding 110 ° C. is preferably used in the present invention. Two or more kinds of heat-fusible resins may be used in combination.
  • the fineness of the heat-fusible fiber is preferably 1 dtex to 120 dtex, and more preferably 1 dtex to 85 dtex.
  • the average fiber length of the heat-fusible fiber is preferably 1 to 100 mm, more preferably 1 to 60 mm, and further preferably 2 to 30 mm. When the fineness and average fiber length of the heat-fusible fiber are within the above ranges, the web layer can be easily formed, and a uniform binding force and a dispersed state can be easily obtained.
  • the average particle size of the heat-fusible particles is preferably 1 to 1,000 ⁇ m, and more preferably 10 to 800 ⁇ m.
  • the average particle size of the heat-fusible resin can be appropriately selected within a range in which the carbonate and acid particles to be used are not completely covered.
  • the heat-fusible resin may be a composite having two or more components.
  • core-sheath fibers in which resins having different melting points are combined, side-by-side fibers using different resins in a cross section perpendicular to the longitudinal direction, and core-shell particles having a core and a shell are included.
  • core-sheath fibers are preferably used because different types of resins can be easily combined.
  • a core-sheath fiber having a melting point of the sheath part lower than that of the core part is preferably used.
  • a PP / PE composite core-sheath fiber provided with a core part made of polypropylene fiber (melting point 160 ° C.) and a sheath part made of polyethylene (melting point 130 ° C.) formed on the outer periphery of the core part can be mentioned.
  • core sheath fibers include, for example, PET / low melting point PET composite core sheath fiber, high density polyethylene / low density polyethylene composite core sheath fiber, polyethylene / low melting point PET composite core sheath fiber, polyamide / low melting point polyamide composite.
  • core-sheath fibers polylactic acid / low melting point polylactic acid composite core-sheath fibers, and polylactic acid / polybutylene succinate composite core-sheath fibers.
  • Many common core-sheath fibers have a melting point of the sheath part exceeding 110 ° C., and such core-sheath fibers are preferably used in the present invention.
  • the carbon dioxide generating sheet according to the present invention can provide a sheet strength while ensuring a void in the sheet, and can provide a soft and excellent sheet.
  • Water-permeable or water-absorbent sheet As the water-permeable or water-absorbent sheet 300, an arbitrary sheet can be used among a sheet having a property of passing moisture (water permeability) and a sheet having a property of absorbing moisture (water absorption). As a sheet
  • the sheet having the property of absorbing moisture (water absorption) a sheet that can take in and retain moisture and release the moisture inside can be used.
  • moisture content which can be applied to this invention is a kind of sheet
  • the water-permeable or water-absorbent sheet 300 has a water absorption rate of 60 seconds or less, more preferably 30 seconds or less, measured according to the sedimentation rate measurement method defined in JIS L1907 standard.
  • the water absorption (or water passage) speed by the dropping method defined in JIS L1907 standard is 60 seconds or less, and more preferably 30 seconds or less. In the water-permeable or water-absorbent sheet 300, the lower the water absorbency, the faster the water is passed.
  • the water-permeable or water-absorbent sheet 300 can be, for example, a nonwoven fabric, a cloth, or another sheet having a mesh structure, and can be, for example, a special nonwoven fabric such as Warif (registered trademark).
  • the surface of the water-permeable or water-absorbent sheet that is the outer layer of the carbon dioxide generating sheet may be subjected to surface treatment such as unevenness.
  • the use of a thick sheet or a low-density sheet has an effect of reducing the graininess appearing on the outer surface of the carbon dioxide generating sheet.
  • a thin sheet or a sheet with high water permeability and air permeability is used, it is difficult to prevent moisture from entering from the surface of the carbon dioxide generating sheet and releasing the generated carbon dioxide to the outside. Easy to get.
  • a water-permeable or water-absorbent sheet is appropriately selected according to the use and purpose.
  • the film 400 has flexibility such that the carbon dioxide generating sheet can be applied along the skin or a curved surface when in use, and other layers of the carbon dioxide generating sheet, in particular, the water-permeable or water-absorbing sheet 300 Any film having a relatively low air permeability can be used.
  • the air permeability measured by the “fabric and knitted fabric test method” defined in Japanese Industrial Standard JIS L1096: 2010 is preferably 150 cm 3 / cm 2 / s or less, more preferably 200 cm 3 / cm 2. / S or less film can be used.
  • This air permeability is the amount of air permeating the film per unit area and unit time when a predetermined pressure is applied, and the larger the value, the higher the air permeability.
  • the other layer of the carbon dioxide generating sheet in particular, a film having a relatively low air permeability as compared with the water-permeable or water-absorbent sheet, the carbon dioxide permeation can be directed.
  • the film examples include resin films such as polyester, polyvinyl alcohol, polyethylene, polypropylene, and a composite film of polyethylene and polypropylene.
  • the carbonate and acid in the carbon dioxide generating sheet are preferably used in chemical equivalents, but considering the effect on the skin, the acid is over-blended and the pH after reaction is about 5 It can also be adjusted so that Moreover, the preferable compounding ratio of carbonate and acid may differ depending on the difference in solubility due to factors such as the particle diameter of carbonate and acid, and can be adjusted as appropriate.
  • the content ratio (mass basis) of the carbonate or acid and the heat-fusible resin can be, for example, 2/98 to 98/2, and 5/95 to 95 / 5 and can be 10/90 to 90/10.
  • the ratio is in the above range, the carbonate and acid in the in-plane direction of the carbon dioxide generating sheet can be blended uniformly, and powder falling can be suppressed.
  • the content ratio (mass basis) of the carbonate or acid, the heat-fusible resin, and the absorbent material is, for example, 2/49 / 49-96 / 2/2, 6/47 / 47-94 / 3/3, and 10/45 / 45-90 / 5/5.
  • the carbonate and the acid can be uniformly disposed in the in-plane direction of the carbon dioxide generating sheet, and can be dispersed in the layer due to the presence of the water-absorbing material. it can.
  • the absorbent material of the present invention can absorb and retain water and carbonates or acids dissolved in water when using the carbon dioxide generating sheet, while being able to release slowly. Moisture can be gradually infiltrated in the carbon dioxide generating sheet. Therefore, when using the carbon dioxide gas generating sheet, the time for starting the reaction between the carbonate and the acid can be widened. As a result, the carbon dioxide gas generating sheet as a whole has a long duration. can do.
  • an appropriate amount of one or more effect promoters can be blended in one or more of the carbonate layer, acid layer, and other layers.
  • the basis weight of the carbon dioxide generating sheet can be appropriately set according to the application. For example, it is preferably 30 to 300 g / m 2 .
  • a method for producing a carbon dioxide generating sheet according to the second aspect of the present invention for example, a layer containing a water-absorbing material is produced in a web forming apparatus employing an airlaid method, and another layer is separately laminated on this The method can be used.
  • a uniform mixture of acid particles or carbonate particles and fusible binder particles such as polyethylene (PE) is placed on the surface of a layer containing a water-absorbing material containing carbonate or acid.
  • PE polyethylene
  • the laminate is formed by using the water-permeable or water-absorbing sheet of the present invention as a carrier sheet for conveying the web layer.
  • seat which forms and has the layer structure which concerns on the 2nd aspect of this invention may be obtained.
  • an adhesive layer is provided on at least one of the joining surfaces of the layers of the carbon dioxide generating sheet, and the layers are joined. In order to prevent the reaction between the carbonate and the acid during production, in the present invention, these laminations are performed by a dry method.
  • the acid particles and the carbonate particles can be present in the state of particles in separate layers.
  • the carbon dioxide generating sheet of the present invention is less stable than the structure in which the acid particles and the carbonate particles are blended in the same layer, and both components are prevented from easily reacting with moisture in the ambient atmosphere. Excellent in storage and storage stability.
  • the manufacturing method of the carbonic acid pack sheet of this embodiment which employs the airlaid method includes a defibrating step, a mixing step, a web forming step, and a binding step.
  • the defibrating step is a step of defibrating a material in the form of a shortcut fiber to obtain a defibrated shortcut fiber by airflow.
  • an air flow is formed by a blower or the like, the shortcut fiber is supplied to the air flow, and the fiber is defibrated by the stirring effect of the air flow.
  • the defibrating method it is preferable to defibrate with a swirling air flow.
  • the shortcut fiber can be sufficiently defibrated, and the dispersibility of the defibrated shortcut fiber can be further increased when forming the air laid web by the air laid method. .
  • a defibrating method using a swirling air stream for example, a method of putting a shortcut fiber into a blower and defibrating with a blower can be mentioned. Further, there is a method in which air is sent along a circumferential direction in a cylindrical container by a blower to form a swirling flow, a shortcut fiber is supplied into the swirling flow, and stirring to defibrate.
  • the flow rate of the air flow is appropriately selected according to the amount of the shortcut fiber, but is usually in the range of 10 to 150 m / sec.
  • the mixing step is a step of obtaining a web raw material by mixing a water-absorbing material in the form of a defibration shortcut fiber and carbonate or acid.
  • any other material can be mixed at the same time.
  • the shape of any other material may be fibrous or particulate.
  • auxiliary agents added as required such as heat-fusible resins, water-absorbing resin particles, and effect accelerators. There is no particular limitation on the order of addition of these materials, and these materials can be added by, for example, spraying or the like in a step after the mixing step.
  • the mixing step may be after the defibrating step or at the same time as the defibrating step.
  • the mixing step is performed simultaneously with the defibration step, the defibration shortcut fiber and an arbitrary material are mixed using an air flow in the defibration step. Further, arbitrary particles may be introduced into the web forming line of the defibrating shortcut fiber in a particle spraying step described later and mixed.
  • a web formation process is a process of obtaining an airlaid web from a web raw material by the airlaid method.
  • the airlaid method is a method of forming a web by randomly depositing fibers three-dimensionally using an air flow.
  • the particle spraying step is a step of blending the powder into the web raw material by a known method. Either a method of mixing powder with fibers to form a web or a method of dispersing on the surface of a web or a carrier sheet may be used.
  • the web forming apparatus 1 includes a conveyor 10, a gas permeable endless belt 20, a fiber mixture supply unit 30, a first carrier sheet supply unit 40, a second carrier sheet supply unit 50, and a suction box 60.
  • the conveyor 10 is composed of a plurality of rollers 11.
  • the air permeable endless belt 20 is mounted on the conveyor 10 and rotates.
  • the fiber mixture supply means 30 supplies the fiber mixture to the gas permeable endless belt 20 together with the air flow.
  • the first carrier sheet supply means 40 supplies the first carrier sheet 41 toward the gas permeable endless belt 20.
  • the second carrier sheet supply means 50 supplies the second carrier sheet 51 toward the first carrier sheet 41 that has passed through the air-permeable endless belt 20.
  • the suction box 60 sucks the air permeable endless belt 20 from the inside thereof.
  • the fiber mixture supply means 30 is installed above the air permeable endless belt 20
  • the first carrier sheet supply means 40 is installed upstream of the air permeable endless belt 20
  • the second carrier sheet is installed downstream of the air permeable endless belt 20.
  • the conveyor 10 is driven by rotating the rollers 11 in the same direction to rotate the air permeable endless belt 20. Further, the first carrier sheet 41 is fed out from the first carrier sheet supply means 40 so as to come into contact with the permeable endless belt 20.
  • the fiber mixture is lowered together with the air flow from the fiber mixture supply means 30, and the fiber mixture is dropped onto the first carrier sheet 41 on the permeable endless belt 20. , Deposit. Thereby, the air laid web A is formed.
  • the second carrier sheet 51 is supplied from the second carrier sheet supply means 50 on the air laid web A to obtain an air laid web-containing laminated sheet.
  • the binding step by the thermal bond method is a step of heat-treating the air laid web and binding the defibrating shortcut fibers with a heat-fusible resin.
  • the heat treatment of the air laid web includes hot air treatment and infrared irradiation treatment, and hot air treatment is preferable from the viewpoint of low cost of the apparatus.
  • the air laid web is contacted with a through air dryer provided with a rotating drum having air permeability on the peripheral surface and heat treated (hot air circulating rotary drum method), and the air laid web is passed through a box type dryer.
  • a through air dryer provided with a rotating drum having air permeability on the peripheral surface and heat treated
  • the air laid web is passed through a box type dryer.
  • Examples include a method of heat treatment by passing hot air through an air laid web (hot air circulation conveyor oven method).
  • the laminated sheet may be subjected to hot air treatment.
  • the first carrier sheet and the second carrier sheet can be peeled from the air laid web after the hot air treatment.
  • the heat treatment temperature may be a temperature at which the heat-fusible resin melts.
  • materials such as PP and PE that are generally used for thermal bonding it is desirable to set the heating temperature to 115 ° C. or higher.
  • the binding step After the binding step, it may be compressed through a heating roll for the purpose of finely adjusting the thickness and density of the carbon dioxide generating sheet.
  • Carbonate or acid can be dispersed in the thickness direction of the layer due to the presence of the water-absorbing material in the layer containing the water-absorbing material.
  • the water-absorbing material can gradually infiltrate moisture, and can widen the reaction start between the carbonate and the acid when using the carbon dioxide generating sheet. As a result, the duration of carbon dioxide generation as the whole carbon dioxide generation sheet can be lengthened.
  • the carbon dioxide generating sheet can be used for (1) protection, (2) medical use, (3) building materials and civil engineering, (4) hygiene use, (5) wiper use, (6) agriculture and horticulture, ( 7) For household materials, (8) For industrial materials, (9) For experimental materials.
  • protection examples include protective equipment.
  • a specific example of the protective article is a mask.
  • Examples of medical uses include gauze, masks, sheets, antibacterial mats, poultice base cloths, poultice base cloths, and hyperalgesia syndrome treatment agents.
  • Examples of building materials and civil engineering include water shielding sheets, protective materials, and anti-corrosion materials.
  • Examples of hygiene include diapers, sanitary products, first aid products, cleaning products, towels, masks, and the like.
  • a specific example of the diaper is a paper diaper.
  • Specific examples of the sanitary product include a napkin and a tampon.
  • Specific examples of the emergency supplies include gauze, first-aid plasters, and cotton swabs.
  • Specific examples of the cleansing products include wet tissues, cosmetic cotton, breast milk pads, wiping sheets, sweat absorption sheets (for face, side, neck, feet, etc.), antibacterial / antibacterial sheets, antiviral sheets, Anti-allergen sheets, antibacterial deodorizing sheets, and the like.
  • a specific example of the mask is a disposable three-dimensional mask.
  • Examples of the wiper include wiper, wet wiper, oil strainer, copying machine cleaning material, and the like.
  • Examples of the agricultural / horticultural use include a nursery sheet, a solid sheet, a defrosting sheet, a herbicidal sheet, and a gardening planter. When used for agriculture and horticulture, for example, it can be used to create an anaerobic environment and perform forcing cultivation.
  • Examples of household materials include packaging materials, cleaning products, bags, foods, household goods, kitchenware, sports equipment, beauty materials, and the like.
  • Specific examples of the cleaning article include a wiper, a chemical cloth, and a scrubber.
  • a specific example of the bag is a desiccant bag.
  • Specific examples of the food include tea bags, coffee bags, food bags, freshness maintaining materials, food-absorbing sheets, carbonic acid injection agents, food additives, and the like.
  • Specific examples of the household goods include bathing agents, eye masks, cooling sheets, warming sheets, neck scarves, gloves, deodorizing sheets, and fragrance base materials.
  • Specific examples of the kitchenware include a draining sheet, a fire extinguishing cloth, and the like.
  • a specific example of the sports equipment is a fatigue recovery material. Beauty materials include face masks, puffs, beauty packs, beauty gloves, and the like.
  • Examples of industrial materials include industrial materials, electrical materials, batteries, product materials, OA equipment, AV equipment, rolls, equipment members, and the like.
  • experimental materials include anaerobic environment forming materials, anesthetic agents, insect attractants, and the like.
  • the carbon dioxide generating sheet of the present invention can be suitably used for applications such as beauty sheets, living material sheets, medical and sanitary sheets such as gauze, cleaning sheets, and wipers.
  • the same carbon dioxide gas generating sheet can be used in various fields and applications without being limited to the above classification.
  • Example 1 ⁇ Manufacture of carbon dioxide generating sheet> Short-cut rayon fiber (fineness 3.3 dtex, fiber length 5 mm) and shortcut core-sheath type heat-sealable composite fiber (PET / PE composite core-sheath fiber, sheath melting point 130 ° C.) Each fiber defibrating shortcut fiber was obtained by defibrating using an airflow defibrating apparatus.
  • the rayon fiber in the form of a defibration shortcut fiber and the heat-fusible composite fiber in the form of a defibration shortcut fiber are uniformly mixed at a ratio (mass ratio) of 70/30 by an air flow, and rayon / ( PET / PE) fiber mixture was obtained.
  • Citric acid and polyethylene (PE) powder were mixed at a ratio (mass ratio) of 80/20 to obtain a particle mixture of citric acid / PE powder.
  • sodium hydrogen carbonate and PE powder were mixed at a ratio (mass ratio) of 80/20 to obtain a particle mixture of sodium hydrogen carbonate / PE powder.
  • a rayon spunlace nonwoven fabric (basis weight: 28 g / m 2 , air permeability: 292 cm 3 / cm) is formed on the air-permeable endless belt 20 mounted on the conveyor 10 by the first carrier sheet supply means 40.
  • the first carrier sheet 41 composed of 2 / s) was fed out.
  • a particle mixture of citric acid / PE powder is sprayed on the first carrier sheet 41 so as to be 50 g / m 2, and the fiber mixture is applied thereon.
  • the fiber mixture was dropped and deposited together with the air flow from the supply means 30. At that time, the fiber mixture was supplied so that the basis weight of the shortcut fiber per air laid web portion was 30 g / m 2 .
  • a particle mixture of sodium hydrogen carbonate / PE powder was sprayed on the airlaid web to a concentration of 50 g / m 2 and deposited.
  • a second carrier sheet 51 made of rayon spunlace nonwoven fabric (basis weight 28 g / m 2 , air permeability 292 cm 3 / cm 2 / s) was laminated thereon to obtain an airlaid web-containing laminated sheet.
  • the obtained laminated sheet was passed through a hot air circulating conveyor oven-type box type dryer and treated with hot air at 140 ° C. to obtain a carbon dioxide generating sheet having a basis weight of 186 g / m 2 .
  • Example 2 ⁇ Manufacture of carbon dioxide generating sheet> Citric acid, PE powder and carboxymethyl cellulose were mixed at a ratio (mass ratio) of 60/20/20 to obtain a particle mixture of citric acid / PE powder / carboxymethyl cellulose. Similarly, sodium hydrogen carbonate, PE powder and carboxymethyl cellulose were mixed at a ratio (mass ratio) of 60/20/20 to obtain a particle mixture of sodium hydrogen carbonate / PE powder / carboxymethyl cellulose, and then 66.7 g of each layer. except for spraying so that / m 2, thereby obtaining the carbon dioxide generating sheet having a basis weight 219.4G / m 2 in the same manner as in example 1.
  • Example 3 ⁇ Manufacture of carbon dioxide generating sheet> Short-cut rayon fiber (fineness 3.3 dtex, fiber length 5 mm) and shortcut core-sheath type heat-sealable composite fiber (PET / PE composite core-sheath fiber, sheath melting point 130 ° C.) Each fiber defibrating shortcut fiber was obtained by defibrating using an airflow defibrating apparatus.
  • the rayon fiber in the form of a defibration shortcut fiber and the heat-fusible composite fiber in the form of a defibration shortcut fiber are uniformly mixed at a ratio (mass ratio) of 50/50 by an air flow, and rayon / ( PET / PE) fiber mixture was obtained.
  • Sodium hydrogen carbonate and PE powder were mixed at a ratio (mass ratio) of 80/20 to obtain a particle mixture of sodium hydrogen carbonate / PE powder.
  • a rayon spunlace nonwoven fabric (basis weight: 28 g / m 2 , air permeability: 292 cm 3 / cm) is formed on the air-permeable endless belt 20 mounted on the conveyor 10 by the first carrier sheet supply means 40.
  • the first carrier sheet 41 composed of 2 / s) was fed out.
  • the fiber mixture and citric acid are mixed with the air flow from the fiber mixture supply means 30 onto the first carrier sheet 41 in a ratio of 50/50 (mass ratio).
  • the mixture was dropped and deposited with mixing.
  • the fiber mixture and citric acid were supplied so that the basis weight per air laid web portion was 100 g / m 2 .
  • a second carrier sheet made of rayon spunlace nonwoven fabric (basis weight 28 g / m 2 , air permeability 292 cm 3 / cm 2 / s) is laminated on the air laid web, and particles of sodium hydrogen carbonate / PE powder are laminated thereon. The mixture was spread and deposited to 50 g / m 2 .
  • a third carrier sheet made of rayon spunlace nonwoven fabric (basis weight 28 g / m 2 , air permeability 292 cm 3 / cm 2 / s) was laminated thereon to obtain an airlaid web-containing laminated sheet.
  • the obtained laminated sheet was passed through a hot air circulating conveyor oven type box-type dryer and treated with hot air at 140 ° C. to obtain a carbon dioxide generating sheet having a basis weight of 234 g / m 2 .
  • Example 4 ⁇ Manufacture of carbon dioxide generating sheet> A carbon dioxide gas generating sheet having a basis weight of 186 g / m 2 is obtained in the same manner as in Example 1 except that pulp (NBKP) is used instead of the rayon fiber (fineness 3.3 dtex, fiber length 5 mm) of the defibration shortcut fiber. It was.
  • Example 5 ⁇ Manufacture of carbon dioxide generating sheet> Short-cut rayon fiber (fineness 3.3 dtex, fiber length 5 mm) and shortcut core-sheath type heat-sealable composite fiber (PET / PE composite core-sheath fiber, sheath melting point 130 ° C.) Each fiber defibrating shortcut fiber was obtained by defibrating using an airflow defibrating apparatus.
  • the rayon fiber in the form of a defibration shortcut fiber and the heat-fusible composite fiber in the form of a defibration shortcut fiber are uniformly mixed at a ratio (mass ratio) of 50/50 by an air flow, and rayon / ( PET / PE) fiber mixture was obtained.
  • Citric acid and PE powder were mixed at a ratio (mass ratio) of 80/20 to obtain a particle mixture of citric acid / PE powder.
  • a rayon spunlace nonwoven fabric (basis weight: 28 g / m 2 , air permeability: 292 cm 3 / cm) is formed on the air-permeable endless belt 20 mounted on the conveyor 10 by the first carrier sheet supply means 40.
  • the first carrier sheet 41 composed of 2 / s) was fed out.
  • the fiber mixture and sodium bicarbonate are mixed onto the first carrier sheet 41 together with the air flow from the fiber mixture supply means 30 in a ratio of 50/50 (mass).
  • the mixture was dropped and deposited while mixing to a ratio.
  • the fiber mixture and sodium bicarbonate were supplied so that the basis weight per air laid web portion was 100 g / m 2 .
  • a second carrier sheet made of rayon spunlace nonwoven fabric (basis weight 28 g / m 2 , air permeability 292 cm 3 / cm 2 / s) is laminated on the air laid web, and a particle mixture of citric acid / PE powder is formed thereon.
  • a particle mixture of citric acid / PE powder is formed thereon.
  • a third carrier sheet made of rayon spunlace nonwoven fabric (basis weight 28 g / m 2 , air permeability 292 cm 3 / cm 2 / s) was laminated thereon to obtain an airlaid web-containing laminated sheet.
  • the obtained laminated sheet was passed through a hot air circulating conveyor oven type box-type dryer and treated with hot air at 140 ° C. to obtain a carbon dioxide generating sheet having a basis weight of 234 g / m 2 .
  • Example 6 A tissue (basis weight 14 g / m 2 ) is laminated instead of the third carrier sheet, 5 g EVA hot melt resin is applied thereon, and a PE film (basis weight 40 g / m 2 ) is pasted. Obtained a carbon dioxide generating sheet having a basis weight of 265 g / m 2 in the same manner as in Example 5.
  • Example 7 ⁇ Manufacture of carbon dioxide generating sheet> Short-cut rayon fibers (3.3 dtex, fiber length 5 mm) were defibrated using a swirling jet airflow defibrating device to obtain defibrated shortcut fibers.
  • a defibrating shortcut fiber and a core-sheath type heat-sealable composite fiber (PET / PET composite core-sheath fiber) whose core part is polyethylene terephthalate (PET) and whose sheath part is polyethylene terephthalate (PET)
  • PET polyethylene terephthalate
  • PET polyethylene terephthalate
  • the first carrier sheet supply means 40 nylon spunbonded nonwoven fabric (30 g / m 2, air permeability of 295cm 3 / cm 2 / The first carrier sheet 41 made of s) was fed out.
  • the fiber mixture and the citric acid particles are dropped and deposited together with the air flow from the fiber mixture supply means 30 on the first carrier sheet 41, and the air laid web is formed. Formed. At that time, the fiber mixture was supplied so that the basis weight of the fiber mixture per air laid web portion was 30 g / m 2, and the citric acid particles were blended so as to be 50 g / m 2 .
  • the obtained laminated sheet was passed through a hot air circulating conveyor oven type box-type dryer and treated with hot air at 140 ° C. to obtain a carbon dioxide generating sheet having a basis weight of 190 g / m 2 .
  • Example 8 The shortcut rayon fiber is changed to a softwood chemical pulp, and a softwood chemical pulp and a core-sheath type heat-fusible composite fiber (PET / PET composite core-sheath fiber) are 70/30 using an airlaid web forming machine.
  • a carbon dioxide generating sheet was obtained in the same manner as in Example 7 except that the airlaid web was formed while uniformly mixing in the air at a ratio (mass ratio).
  • the basis weight of the obtained carbon dioxide generating sheet was 190 g / m 2 .
  • Example 9 A tissue (basis weight 14 g / m 2 ) is laminated instead of the second carrier sheet, 5 g of EVA hot melt resin is applied thereon, and a PE film (basis weight 40 g / m 2 ) is pasted. Obtained a carbon dioxide generating sheet having a basis weight of 219 g / m 2 in the same manner as in Example 8.
  • Example 10 A carbon dioxide generating sheet having a basis weight of 200 g / m 2 was obtained in the same manner as in Example 8, except that cotton / PET spunlace (basis weight 40 g / m 2 ) was laminated instead of the second carrier sheet.
  • Example 11 ⁇ Manufacture of carbon dioxide generating sheet> 60/40 of pulp (NBKP) and a core-sheath type heat-sealable composite fiber (PET / PE composite core-sheath fiber) whose core part is polyethylene terephthalate (PET) and whose sheath part is polyethylene (PE)
  • the fiber mixture was obtained by uniformly mixing at a ratio (mass ratio) of air by an air flow.
  • Citric acid and PE powder were mixed at a ratio (mass ratio) of 75/25 to obtain a particle mixture of citric acid / PE powder.
  • a rayon spunlace nonwoven fabric (basis weight: 28 g / m 2 , air permeability: 292 cm 3 / cm) is formed on the air-permeable endless belt 20 mounted on the conveyor 10 by the first carrier sheet supply means 40.
  • the first carrier sheet 41 composed of 2 / s) was fed out.
  • the fiber mixture and sodium bicarbonate are dropped and deposited on the first carrier sheet 41 together with the air flow from the fiber mixture supply means 30 to form an airlaid web. did. At that time, the fiber mixture was supplied so that the basis weight of the fiber mixture per air-laid web portion was 100 g / m 2, and sodium bicarbonate was blended so as to be 50 g / m 2 .
  • a particle mixture of citric acid particles and PE powder was sprayed on the air laid web to 100 g / m 2 and deposited.
  • a second carrier sheet 51 made of a tissue (basis weight 14 g / m 2 ) is laminated thereon and treated with hot air at 140 ° C., and the obtained laminated sheet is passed through a box type dryer of a hot air circulating conveyor oven system. Then, after pressurizing with a heated press roll, 5 g of EVA hot melt resin is applied thereon, and a PE film (basis weight 26 g / m 2 ) is bonded, and a basis weight of 323 g / m 2 is applied. A carbon dioxide generating sheet was obtained.
  • Example 12 In the same manner as in Example 11, except that sodium bicarbonate was blended to 100 g / m 2, and a particle mixture of citric acid particles and PE powder was sprayed to 50 g / m 2 and deposited, A carbon dioxide gas generating sheet having an amount of 373 g / m 2 was obtained.
  • Example 13 A carbon dioxide generating sheet having a basis weight of 335 g / m 2 was obtained in the same manner as in Example 11 except that an airlaid nonwoven fabric (kino cloth: basis weight 40 g / m 2 ) was used instead of the rayon spunlace nonwoven fabric.
  • an airlaid nonwoven fabric kino cloth: basis weight 40 g / m 2
  • Example 14 Example 11 except that citric acid and PE powder were mixed at a ratio of 25/75 (mass ratio) instead of 75/25 (mass ratio) to obtain a citric acid / PE powder particle mixture. Similarly, a carbon dioxide generation sheet having a basis weight of 323 g / m 2 was obtained.
  • Example 15 ⁇ Manufacture of carbon dioxide generating sheet> Citric acid and PE powder were mixed at a ratio (mass ratio) of 50/50 to obtain a particle mixture of citric acid / PE powder. Sodium hydrogen carbonate and PE powder were mixed at a ratio (mass ratio) of 50/50 to obtain a particle mixture of sodium hydrogen carbonate / PE powder.
  • a rayon spunlace nonwoven fabric (28 g / m 2 , air permeability 292 cm 3 / cm 2 / by the first carrier sheet supply means 40 is placed on the air-permeable endless belt 20 that is mounted on the conveyor 10 and travels.
  • a particle mixture of citric acid / PE powder is sprayed on the first carrier sheet 41 so as to be 80 g / m 2, and the second carrier sheet.
  • a rayon spunlace nonwoven fabric 28 g / m 2 , air permeability 292 cm 3 / cm 2 / s was laminated.
  • a particle mixture of sodium hydrogen carbonate / PE powder was sprayed on the second carrier sheet to 80 g / m 2 and deposited.
  • the obtained laminated sheet was passed through a hot air circulating conveyor oven type box type dryer and treated with hot air at 140 ° C. to obtain a carbon dioxide generating sheet having a basis weight of 244 g / m 2 .
  • the PET spunbond nonwoven fabric (28 g / m 2 , air permeability 292 cm 3 / cm 2 /) is formed on the air-permeable endless belt 20 that is mounted on the conveyor 10 and travels by the first carrier sheet supply means 40.
  • citric acid was sprayed onto the first carrier sheet 41 so as to be 40 g / m 2, and the second carrier sheet rayon spunlace nonwoven fabric (28 g / M 2 , air permeability 292 cm 3 / cm 2 / s).
  • Example 2 A carbon dioxide generating sheet was obtained in the same manner as in Example 7 except that the shortcut fiber was not blended.
  • the basis weight of the obtained carbon dioxide generating sheet was 160 g / m 2 .
  • the carbon dioxide generating sheets obtained in Examples 1 to 6 and Comparative Example 1 were cut into a width of 100 mm and a length of 200 mm to prepare test pieces. Place the test piece in a 500 ml flask, add 500 ml of distilled water, cover with a rubber stopper connected to the tube, put the tip of the tube into the water tank, and measure the bubble generation time from the tip of the tube. did.
  • the carbon dioxide generating sheets obtained in Examples 7 to 15 and Comparative Example 2 were cut into a width of 50 mm and a length of 50 mm to prepare test pieces.
  • the test piece was placed in a flask, 10 ml of distilled water was added, the tube was capped with a rubber stopper connected to the tube, the tip of the tube was placed in the water tank, and the bubble generation time from the tip of the tube was measured. .
  • Tables 1 and 2 show the results of measurement and evaluation tests.
  • Examples 1 to 6 and 15 are carbon dioxide generating sheets according to the first aspect of the present invention
  • Examples 7 to 14 are carbon dioxide generating sheets according to the second aspect of the present invention.
  • the carbon dioxide generating sheet according to the present invention has a long duration of carbon dioxide generation as the whole sheet. Further, in the carbon dioxide generating sheet according to the first aspect of the present invention, bubbles were generated uniformly or almost uniformly over the entire surface of the sheet. Further, the carbon dioxide generating sheet according to the first aspect of the present invention had less powder falling. Furthermore, when the carbon dioxide generating sheet according to the first aspect of the present invention contains a water-absorbing material in the carbonate layer and / or the acid layer, the touch is soft and the texture is good.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Chemical & Material Sciences (AREA)
  • Emergency Medicine (AREA)
  • Dermatology (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Cosmetics (AREA)
PCT/JP2016/001887 2015-04-02 2016-04-01 炭酸ガス発生シート WO2016157916A1 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015076369 2015-04-02
JP2015076370 2015-04-02
JP2015-076370 2015-04-02
JP2015-076369 2015-04-02

Publications (1)

Publication Number Publication Date
WO2016157916A1 true WO2016157916A1 (ja) 2016-10-06

Family

ID=57005746

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/001887 WO2016157916A1 (ja) 2015-04-02 2016-04-01 炭酸ガス発生シート

Country Status (2)

Country Link
TW (1) TWI593558B (zh)
WO (1) WO2016157916A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI703991B (zh) * 2017-09-29 2020-09-11 榮華 曹 供給二氧化碳氣體的衛生用品
CN112793264B (zh) * 2019-11-14 2024-07-12 Csir公司 食品包装膜
CN112493132A (zh) * 2020-12-17 2021-03-16 刘泽洋 一种改善植物组培瓶苗气体微环境的方法及专用培养基

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010047486A (ja) * 2008-08-19 2010-03-04 Spc:Kk 血行促進用パック材及び血行促進用パックシート
WO2013129414A1 (ja) * 2012-02-29 2013-09-06 株式会社メディオン・リサーチ・ラボラトリーズ 二酸化炭素を発生する美容シート製品
JP2014065707A (ja) * 2012-09-07 2014-04-17 Marusan Industrial Co Ltd パック材

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI345473B (en) * 2002-07-05 2011-07-21 Neochemir Inc Carbon dioxide agent for external use and the stuff for preparation of the same
KR101383908B1 (ko) * 2012-10-29 2014-04-10 씨앤텍 주식회사 이산화탄소를 피부에 공급하는 팩과 그 제조방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010047486A (ja) * 2008-08-19 2010-03-04 Spc:Kk 血行促進用パック材及び血行促進用パックシート
WO2013129414A1 (ja) * 2012-02-29 2013-09-06 株式会社メディオン・リサーチ・ラボラトリーズ 二酸化炭素を発生する美容シート製品
JP2014065707A (ja) * 2012-09-07 2014-04-17 Marusan Industrial Co Ltd パック材

Also Published As

Publication number Publication date
TW201641280A (zh) 2016-12-01
TWI593558B (zh) 2017-08-01

Similar Documents

Publication Publication Date Title
JP5112677B2 (ja) 吸汗性シートおよびその製造方法
TWI642553B (zh) Sheet containing cyclodextrin
JP6451842B2 (ja) 金属酸化物および／または金属水酸化物含有シート
JP2015507977A (ja) 衛生製品
WO2006006654A1 (ja) ヒートクロス及びその製造方法
WO2006006650A1 (ja) 発熱体及び発熱体の製造方法
JP2013517859A (ja) 柔軟性のある高吸収性を有する材料
JP6093002B1 (ja) 吸収性物品の外装シート用の不織布、並びに当該不織布を外装シートとして含む吸収性物品
WO2016157916A1 (ja) 炭酸ガス発生シート
WO2018016646A1 (ja) 不織布シート
WO2006006648A1 (ja) 発熱組成物、発熱体及び発熱体の製造方法
CN102245144A (zh) 身体感觉型吸收性物品
TW201809391A (zh) 不織布片
JP6575419B2 (ja) 炭酸ガス発生シート
CN202450248U (zh) 一次性尿片生产线
JP2014156446A (ja) 制汗剤配合多重層汗取りシートの製造方法
JP6743459B2 (ja) 炭酸ガス発生シート
WO2006006663A1 (ja) 温灸器
JP2019183337A (ja) 機能性シートおよび機能性シートキット
JP5942843B2 (ja) 吸収補助シートおよびそれを有する吸収体
JP2018134061A (ja) 反応装置および使い捨て型機能性材料カートリッジ
JP6988660B2 (ja) 機能性シートおよび機能性シートキット
JP6277784B2 (ja) 吸収体
JP2019183336A (ja) 機能性シート
JP2018020996A (ja) 発泡性袋材

Legal Events

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

Ref document number: 16771802

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16771802

Country of ref document: EP

Kind code of ref document: A1