WO2014157724A1 - Composition générant de la chaleur, et dispositif de chauffage corporel jetable - Google Patents

Composition générant de la chaleur, et dispositif de chauffage corporel jetable Download PDF

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Publication number
WO2014157724A1
WO2014157724A1 PCT/JP2014/059549 JP2014059549W WO2014157724A1 WO 2014157724 A1 WO2014157724 A1 WO 2014157724A1 JP 2014059549 W JP2014059549 W JP 2014059549W WO 2014157724 A1 WO2014157724 A1 WO 2014157724A1
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Prior art keywords
component
exothermic composition
fragrance
carbon
surface area
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PCT/JP2014/059549
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English (en)
Japanese (ja)
Inventor
美歌子 中林
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興和株式会社
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Priority to JP2015508827A priority Critical patent/JPWO2014157724A1/ja
Publication of WO2014157724A1 publication Critical patent/WO2014157724A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A61F7/032—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves
    • A61F7/034—Flameless
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0203—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor
    • A61F2007/0206—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor containing organic solids or fibres
    • A61F2007/0209—Synthetics, e.g. plastics
    • A61F2007/0214—Polymers, e.g. water absorbing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0203—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor
    • A61F2007/0215—Cataplasms, poultices or compresses, characterised by their contents; Bags therefor containing liquids other than water
    • A61F2007/0219—Gels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0244—Compresses or poultices for effecting heating or cooling with layers
    • A61F2007/0258—Compresses or poultices for effecting heating or cooling with layers with a fluid permeable layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A61F7/032—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves
    • A61F7/034—Flameless
    • A61F2007/036—Fuels
    • A61F2007/038—Carbon or charcoal, e.g. active

Definitions

  • the present invention relates to a heat generating composition that generates heat in the presence of air and a disposable body warmer provided with the heat generating composition. More specifically, the present invention relates to a heat generating composition capable of generating heat in the presence of air and emitting aroma, and a scented disposable body warmer.
  • a scented disposable body warmer in which an aromatic component is added to an exothermic composition or an air-permeable bag body containing the exothermic composition is known.
  • the conventional scented disposable warmer has a problem that the activated carbon contained in the exothermic composition adsorbs the fragrance component between the production and the start of use, and there is almost no fragrance at the time of opening.
  • Patent Documents 1 to 4 propose exothermic compositions and scented disposable warmers in which measures are taken so that the scent is not adsorbed by the activated carbon.
  • Patent Document 1 a fiber layer, a breathable sheet layer, a heat generating composition layer, a breathable or non-breathable sheet layer, an adhesive layer, and a release sheet layer are provided in this order.
  • the exothermic composition layer is a exothermic structure enclosed in a bag body formed of a breathable sheet layer and a breathable or non-breathable sheet layer, and the fiber layer has an aroma, antiseptic, and anti-flame Heat-generating structures having microcapsules that contain analgesic, deodorant, antioxidant, antibacterial or bactericidal components have been proposed.
  • Patent Document 2 discloses a disposable body warmer in which a heat-generating composition that generates heat in the presence of air is sealed in a flat bag having air permeability.
  • a coating film of microcapsules formed by confining aroma oil in a capsule container is formed on the entire surface, one surface, or part of the capsule container, and the capsule container has a shielding property that can suppress the aroma of the aroma oil in the container, and
  • a scented disposable body warmer having a capsule strength that is broken by hand-squeezing the flat bag and has a capsule strength that escapes fragrance.
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2010-051690 (Patent Document 3) includes a heat generating portion containing an oxidizable metal and activated carbon, and a bag body that is at least partially breathable and that houses the heat generating portion. There has been proposed a heating tool which is perfumed with a fragrance composition containing the component A.
  • the specific component A of the heating tool is a chain monoterpene alcohol, sesquiterpene alcohol, monoterpene alcohol or alicyclic alcohol acetate, methyl dihydrojasmonate, ionone, or It is Damascon, and by using these, it is said that the scenting at the time of using the heating tool is sufficient, and the change of the scent during storage can be effectively prevented.
  • Patent Document 4 a heat generating part containing an oxidizable metal and activated carbon, and a bag body having air permeability at least partially and containing the heat generating part are provided.
  • the ratio of the sum of the masses of component A and component B and the mass of activated carbon [(component A + component B) / activated carbon] is added by the fragrance composition containing specific component A and component B. Heating tools that are 0.04 to 0.2 have been proposed.
  • the specific component A in the heating tool is a monoterpenoid having a cyclic ether structure
  • the specific component B is a monoterpenoid having a cyclic ketone structure, and these are specified ratios relative to activated carbon.
  • the fragrance-containing microcapsule is held on the surface of the bag body, and fragrance is obtained by rubbing during use. Is configured to start. Therefore, at the time of production, a number of steps are required to encapsulate the fragrance in the microcapsule or to hold the microencapsulated fragrance on the surface of the bag.
  • the strength of the microcapsule is too strong, it cannot be destroyed by rubbing by hand, and if it is too weak, the microcapsule may be destroyed not only during production but also during transportation or storage, There is a drawback that it is difficult to adjust to an appropriate strength for manufacturing.
  • the microcapsules may not be destroyed and aroma may not start.
  • a method of rubbing the surface of the body warmer inside the clothes is very inconvenient.
  • the present invention can be easily manufactured using a fragrance component such as a desired fragrance, and in use, heat is generated in the presence of air, and the bag body is simply opened without adsorbing the fragrance component.
  • a fragrance component such as a desired fragrance
  • the heat generating composition that can emit the desired fragrance and the disposable body warmer were studied earnestly.
  • a conductive carbon material having a specific average particle size is used in a surface area that adsorbs the fragrance as a carbon component by using an amount of the surface area that adsorbs the fragrance in a specific range.
  • the heat-generating composition that can maintain the heat-generating performance of the disposable body warmer while reducing the adsorption of aromatic components as much as possible has been found.
  • the present invention provides a exothermic composition that can be easily manufactured using a desired fragrance, and emits a fragrance just by opening a bag, and a disposable body warmer using this exothermic composition. It is for the purpose.
  • the invention according to claim 1 of the present invention includes an oxidizable metal powder, an inorganic electrolyte, water, a carbon component, a water retention agent, an aromatic component, and the presence of air.
  • An exothermic composition that generates heat below The carbon component is a conductive carbon material having an average particle size of 10 to 100 nm, and the content thereof is 1.0 to 7.4 m 2 perfume adsorption surface area per 1 g of the exothermic composition. Exothermic composition.
  • the conductive carbon substance is carbon black or graphite.
  • the conductive carbon substance has a specific surface area of 10 to 400 m 2 / g.
  • the conductive carbon substance in the exothermic composition according to any one of the first to third aspects, is 0.1 to 10% by mass relative to the entire exothermic composition. It is characterized by being contained.
  • the invention according to claim 5 of the present invention includes an oxidizable metal powder, an inorganic electrolyte, water, a carbon component, and a water retention agent, and the carbon component has an average particle size of 10 to 100 nm.
  • An exothermic carbon material the content of which is such that the perfume adsorption surface area per gram of the composition is 1.0 to 7.4 m 2, and an exothermic composition that generates heat in the presence of air;
  • a disposable body warmer comprising an aromatic component added to the exothermic composition and / or the bag.
  • a conductive carbon substance having a specific average particle size is selected as the carbon component, and the perfume adsorption surface area in a specific amount of the exothermic composition is specified. Performance can be obtained, and a desired fragrance can be emitted at the time of heat generation without adsorbing the fragrance component between production and start of use.
  • the exothermic composition of the present invention does not require special processing such as microencapsulation at the time of production, and a desired aromatic component is contained in a bag body (breathable bag) containing the exothermic composition and / or exothermic composition.
  • a heating element or a disposable body warmer that can emit fragrance can be easily produced simply by adding to the body.
  • the conductive carbon material having a large heat generation effective surface area is used as the carbon component in this invention, the content is reduced in order to reduce the fragrance adsorption surface area of the carbon component for the purpose of suppressing the adsorption of the fragrance component.
  • good exothermic performance can be obtained without affecting the catalytic action of the carbon component in the oxidation reaction.
  • the exothermic composition of the present invention contains an oxidizable metal powder, an inorganic electrolyte, water, a carbon component, and a water retention agent, and generates heat in the presence of air, and is used for a disposable body warmer. It is.
  • the carbon component plays a role similar to that of a positive electrode of a battery that causes a reduction reaction of oxygen. Therefore, it is considered that the reaction is promoted catalytically. Thus, the carbon component plays an important role in causing the reaction to proceed smoothly in the oxidation reaction of the oxidizable metal powder.
  • activated carbon contained in a heating element or disposable body warmer is a substance with a large specific surface area having a large number of pores, and has three types of pores with different sizes of micropores, mesopores, and macropores. . Therefore, since it has high adsorption performance with respect to a wide range of components, when it is used together with an aroma component for a disposable scented warmer, the aroma component is adsorbed by the start of use.
  • activated carbon as a carbon component is a catalyst for smoothly proceeding the oxidation reaction of the oxidizable metal powder. Therefore, in order to obtain sufficient heat generation performance as a disposable body warmer, it is necessary to contain a certain amount of activated carbon.
  • the heat generation performance desired as a disposable body warmer cannot be obtained by simply reducing the content of the activated carbon to suppress the adsorption of the aroma component.
  • a conductive carbon material which is a highly conductive carbon material, is selected as the carbon component instead of the conventionally used activated carbon, and has a specific average particle diameter. And is used in such an amount that the surface area for adsorbing fragrance components such as fragrances falls within a specific range.
  • a conductive carbon substance is used as the carbon component.
  • the conductive carbon material include carbon black and graphite.
  • the average particle size of the carbon component is 10 to 100 nm, and more preferably 19 to 78 nm.
  • the present invention by using relatively small particles as the carbon component relative to the oxidizable metal powder particles, it becomes possible to provide a heat generation effective surface that can be used for energization of almost the entire surface of the carbon component. ing.
  • the average particle size of the carbon component is too small, there is a concern such as powder scattering during production or leakage from the air-permeable bag, and therefore, as the carbon component, using small particles having an average particle size of less than 10 nm It is not preferable.
  • a conductive carbon material having an average particle size of 10 to 100 nm is used in consideration of the effective heat generation surface area of the carbon component (surface area where the carbon component can come into contact with the oxidizable metal powder). ing. Therefore, even if the fragrance adsorption surface area of the carbon component is reduced for the purpose of suppressing the adsorption of the fragrance component and the content thereof is reduced, good exothermic performance can be obtained without affecting the catalytic action of the carbon component in the oxidation reaction.
  • the said average particle diameter is a primary particle diameter, for example, the particle diameter of 20 particles or more is measured by electron microscope observation, and is obtained by the average.
  • the carbon component is used in such an amount that a surface area (hereinafter also referred to as a fragrance adsorption surface area) that can adsorb an fragrance component such as a fragrance is in a specific range.
  • a surface area hereinafter also referred to as a fragrance adsorption surface area
  • the “perfume adsorption surface area” means a surface area that may adsorb an aromatic component, and can be determined by the following formula.
  • Perfume adsorption surface area (m 2 / g) specific surface area of conductive carbon substance (m 2 / g) ⁇ conducting carbon substance content in exothermic composition (g) / total weight of exothermic composition (g)
  • the specific surface area can be measured by, for example, the BET adsorption method, and the specific surface area value in the present invention is measured by this method except for specific components.
  • the content of the conductive carbon material used in the present invention is such that the perfume adsorption surface area per 1 g of the composition is 1.0 to 7.4 m 2 , more preferably 1.2 to 7.3 m 2. This is the amount. Therefore, in this invention, since the conductive carbon material having a specific surface area as described above is used as the carbon component, the conductive carbon material is a fragrance component such as a fragrance during the period from manufacture to start of use. Will not be absorbed.
  • the content of the conductive carbon material used may be such that the perfume adsorption surface area per gram of the heat generating composition is 1.0 to 7.4 m 2. Although it may be selected, it is preferably 10 to 400 m 2 / g.
  • the content of the conductive carbon substance may be within the range of the specific perfume adsorption surface area, but is 0.1 to 10% by mass, more preferably 1 to 7%, based on the entire exothermic composition. % By mass. If it is less than 0.1% by mass, sufficient heat generation performance as a heating element or a disposable body warmer cannot be obtained, and conversely even if it exceeds 10% by mass, the oxidation reaction is not further promoted. , Tend to be uneconomical.
  • the amount used can be reduced as compared with conventionally used activated carbon, and the amount of the exothermic composition can be reduced. It is easy, easy to use, not bulky when used, and economical.
  • the oxidizable metal powder used in the present invention is not particularly limited as long as it easily reacts with oxygen in the air and generates heat during the reaction. Examples thereof include reduced iron powder, atomized iron powder, and iron iron powder.
  • As the iron powder a small amount of active iron powder, for example, active iron powder described in Japanese Patent No. 3341020 may be used.
  • the content of the oxidizable metal powder in the exothermic composition is usually 30% by mass or more, preferably 40% by mass or more, more preferably 45% by mass or more, and usually 80% by mass or less, preferably 70% by mass. Hereinafter, it is more preferably 65% by mass or less.
  • the inorganic electrolyte used in the present invention can be added to the exothermic composition in the form of an electrolyte solution.
  • an electrolyte solution examples include aqueous solutions of sodium chloride, potassium chloride, calcium chloride, magnesium chloride, and the like.
  • the content of the inorganic electrolyte in the exothermic composition is usually 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, and usually 15% by mass or less, preferably 10% by mass. % Or less, more preferably 5% by mass or less.
  • water retention agent used in the present invention examples include silica, vermiculite, a water-absorbing polymer, and wood powder.
  • water-absorbing polymer examples include sodium polyacrylate, crosslinked polyacrylate, polyvinyl alcohol, polyvinyl pyrrolidone, gum arabic, crosslinked polyalkylene oxide, water-soluble cellulose ether, poly-N-vinylacetamide, hydroxyethyl cellulose, methyl cellulose, Examples include sodium alginate, pectin, acrylic sulfonic acid polymer material, gelatin, polyethylene oxide, carboxymethyl cellulose and the like.
  • the content of the water retention agent in the exothermic composition is usually 2% by mass or more, preferably 3% by mass or more, more preferably 5% by mass or more, and usually 30% by mass or less, preferably 25% by mass or less, and more. Preferably it is 20 mass% or less.
  • the aromatic component used in the present invention is not particularly limited as long as it is volatilized at room temperature or at an exothermic temperature of the exothermic composition.
  • aromatic component examples include benzaldehyde, ⁇ -pinene, geraniol, citronellal, linalool, limonene, menthol, linalyl acetate, amylcinnamic aldehyde, methyl anthranilate, isoeugenol, allyl caproate, isobutyl acetate, benzyl acetate, and salicylic acid.
  • Fragrances containing isoamyl, citral, decylaldehyde, hydroxycitronellal, isoamyl acetate, and plant essential oils with an aromatic deodorizing effect such as bitter almond oil, cypress oil, nutmeg oil, geranium oil, lavender oil, lime Examples thereof include, but are not limited to, oil, peppermint oil, vetiver oil, sweet orange oil, and thyme oil.
  • the addition of the fragrance component is not particularly difficult, and may be mixed in the exothermic composition, or may be added to a breathable bag that encloses the exothermic composition.
  • the content of the fragrance component is 0.1 to 3% by mass, more preferably 0.5 to 2.5% by mass.
  • the method of adding the fragrance component to the exothermic composition is not particularly difficult, and a conventionally used method may be employed.
  • a conventionally used method may be employed.
  • the fragrance component When the fragrance component is added to the breathable bag body, for example, the fragrance component may be mixed with an appropriate binder and applied to the bag body, or an adhesive that forms one surface of the breathable bag body. It can also be added to the agent.
  • adhesives include rubber adhesives such as natural rubber and synthetic rubber, and acrylic adhesives such as n-butyl methacrylate.
  • the exothermic composition of the present invention can be appropriately added within a range not impairing the effects of the present invention.
  • examples of such components include a hydrogen generation inhibitor.
  • the water contained in the exothermic composition can be used for both distilled water and tap water, and the content in the exothermic composition is usually 1% by mass or more, preferably 5% by mass or more, more preferably 10%. It is 40 mass% or less normally, Preferably it is 35 mass% or less, More preferably, it is 30 mass% or less.
  • the exothermic composition of this invention can be accommodated in a breathable bag and used as a disposable body warmer.
  • the exothermic composition of the present invention is housed in a bag body (inner bag) that is at least partially breathable, and the inner bag is made of a non-breathable packaging material. It can also be sealed and packaged in the body (outer bag), and the inner bag can be taken out from the outer bag and used at the time of use.
  • the breathable bag or inner bag examples include a breathable bag formed of a breathable sheet formed by laminating a nylon nonwoven fabric and porous polyethylene, and nylon is used for the outermost layer, and polyethylene is used for the inner layer. It is possible to use a breathable bag formed of a sheet formed by laminating a film and further laminating a film made of linear low density polyethylene (LLDPE) having good heat-fusibility inside.
  • LLDPE linear low density polyethylene
  • the breathable bag body or inner bag is not limited to these, and can be composed of, for example, a breathable film, paper, nonwoven fabric, woven fabric, or the like.
  • the breathable film can be made into a film, and is particularly limited as long as it can exhibit breathability by a method such as stretching and / or extraction of a soluble filler or perforation with an ultrafine needle. is not.
  • a breathable film specifically, for example, polyethylene, polypropylene, cellophane, polyester, polyamide, polyvinyl alcohol, polyvinyl chloride, polyvinylidene chloride, polyurethane, polystyrene, ethylene vinyl acetate copolymer, polycarbonate, hydrochloric acid Rubber etc. are mentioned.
  • those made of polyolefin resin are preferable because a homogeneous air permeable film can be obtained by stretching or the like.
  • polystyrene-based resin examples include homopolymers or copolymers such as polyethylene, polypropylene, and polybutadiene, or blend polymers thereof.
  • polypropylene (PP), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE) are preferable from the above viewpoint.
  • the breathable bag body may be provided with an adhesive layer on one surface.
  • the pressure-sensitive adhesive that can be used to form such a pressure-sensitive adhesive layer is not particularly limited as long as it has good adhesion to underwear and skin.
  • vinyl adhesive vinyl acetate adhesive, polyvinyl acetal adhesive, vinyl chloride adhesive, cellulose adhesive, chloroprene (neoprene) adhesive, acrylic adhesive, nitrile rubber
  • a layer formed of an adhesive such as a styrene-based adhesive, a styrene rubber-based adhesive, a silicone rubber-based adhesive, a polysulfide-based adhesive, a terpene resin, or a water-soluble rosin.
  • an adhesive layer it is preferable to cover with a release paper to prevent the adhesive layer from being soiled before use.
  • the bag body made of the non-breathable packaging material
  • transparent vapor deposited PET film biaxially oriented polypropylene plus polyethylene film laminated film, polyvinylidene chloride, polyamide, nylon, metal vapor deposited film, Metal oxide vapor-deposited film, metal stay laminated film, EVOH (ethylene / vinyl alcohol copolymer, ethylene / vinyl acetate copolymer saponified product) single film, or a film laminated with another film and polyethylene
  • EVOH ethylene / vinyl alcohol copolymer, ethylene / vinyl acetate copolymer saponified product
  • a composite film or a multilayer film bonded with a heat-fusible film such as polypropylene can be used.
  • These films are formed into a bag body, for example, by superimposing such that the surfaces of the heat-fusible film are inside each other and heat-sealing the periphery.
  • ⁇ Measurement method> The warmers obtained in Examples 1 to 3 and Comparative Examples 1 and 2 were previously left in the measurement chamber (temperature 25 ° C.) and allowed to acclimatize to room temperature. Thereafter, the body was opened and heat generation was started. Cairo was wrapped with a towel (pile fabric, 100% cotton), the surface temperature of the warmer was measured, and the time until this temperature reached 40 ° C. was defined as the exothermic rise time.
  • the exothermic compositions of the present invention obtained in Examples 1 to 3 all have an exothermic rise characteristic equal to or higher than that of the exothermic composition obtained in Comparative Example 2, which is an exothermic composition containing activated carbon as a carbon component. I understand that.
  • the heating element raw material (exothermic composition) obtained in Comparative Example 1 has a fragrance adsorption surface area adjusted by reducing the amount of activated carbon so as not to adsorb an aromatic component. By this adjustment, in the heating element raw material obtained in Comparative Example 1, adsorption of the aroma component is suppressed, but the heat generation performance is inferior.
  • Example 2 Regarding the heating element raw materials obtained in Example 1 and Comparative Example 1, the fragrance adsorption surface area of the exothermic composition (19 g) was changed by changing the blending ratio of the carbon component, and the rise time of heat generation was measured by the following method. Went. The relationship between 1 / T ( ⁇ 100) and the perfume adsorption surface area of the exothermic composition (19 g) is shown in Table 5 and FIG.
  • the exothermic composition of the present invention has an exothermic rise characteristic superior to the exothermic composition obtained in Comparative Example 1 which is an exothermic composition containing activated carbon as a carbon component. Therefore, as in the case of the evaluation example 1, it is apparent that when activated carbon is used by adjusting the surface area in consideration of the adsorption of the fragrance, it is not suitable as a disposable body warmer.
  • the fragrance component is not adsorbed during the period from manufacture to start of use. Can be planned.

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Abstract

La présente invention vise à résoudre le problème consistant à fournir : une composition générant de la chaleur qui est capable de générer de la chaleur en présence d'air, et d'émettre une fragrance ; et un dispositif de chauffage corporel jetable utilisant la composition. La présente invention concerne par conséquent une composition générant de la chaleur qui contient une poudre métallique oxydable, un électrolyte inorganique, de l'eau, un composant carboné, un agent de rétention d'eau, et un composant de fragrance, et qui génère de la chaleur en présence d'air. Le matériau de carboné conducteur comprenant du noir de carbone ou du graphite, et ayant une taille moyenne de particules de 10 à 100 nm est utilisé en tant que composant carboné, et l'aire de surface d'adsorption de fragrance du matériau carboné conducteur en la quantité utilisée dans la composition générant de la chaleur est de 1,0 à 7,4 m² par gramme de la composition générant de la chaleur. La composition générant de la chaleur est contenue dans un sac perméable à l'air pour produire un dispositif de chauffage corporel jetable.
PCT/JP2014/059549 2013-03-29 2014-03-31 Composition générant de la chaleur, et dispositif de chauffage corporel jetable WO2014157724A1 (fr)

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JP2013072345 2013-03-29

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