JP5945166B2 - Heating equipment - Google Patents

Description

  The present invention relates to a heating tool.

  2. Description of the Related Art In recent years, it has been known that a heating tool that generates heat by an oxidation reaction of an oxidizable metal exhibits a fragrance during use by being given a fragrance.

  For example, Patent Document 1 describes a scented heating device that has a good scent at the time of use and is unlikely to deteriorate during storage.

JP 2010-51690 A

  However, in the technique of Patent Document 1, when the terpene hydrocarbon or aromatic alcohol is contained in a large amount, the scent may be altered by storage, and the selection of the type and content of the aroma component may occur. Found a limitation.

  The present invention relates to a heating device that enhances the persistence of a scent at the time of use, and even when a fragrance containing a terpene hydrocarbon or an aromatic alcohol is used, the scent is not easily altered during storage.

  The inventors of the present invention have high fragrance persistence during use by adding a heating tool with a fragrance composition containing a very small amount of a specific ketone-based fragrance, and a terpene hydrocarbon in the fragrance composition. It has been found that the change in the fragrance during storage of the heating tool can be suppressed even in the case of containing an aromatic alcohol.

That is, the present invention
A heat generating part comprising an oxidizable metal, activated carbon and water;
A bag body that is at least partially breathable and contains the heat generating portion;
A heating device having
The heating device is selected from 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one and 2,4,4,7-tetramethyl-6-octen-3-one. 1 or 2 types of 1st fragrance | flavor components, and the fragrance | flavor composition containing 1 type, or 2 or more types of 2nd fragrance | flavor components selected from a terpene hydrocarbon and aromatic alcohol,
The heating tool in which the content of the first fragrance component in the fragrance composition is 1% by mass or more and 15% by mass or less with respect to the entire fragrance composition.

  According to the present invention, even when the fragrance composition contains a terpene hydrocarbon or an aromatic alcohol, it is possible to suppress a change in the fragrance tone during storage while enhancing the scent durability during use. .

It is sectional drawing which showed typically the heating tool which concerns on embodiment. It is a top view which shows the steam heating tool which is an example of the heating tool of this invention. It is a disassembled perspective view of the steam heating tool shown in FIG. It is sectional drawing in alignment with the longitudinal direction of the steam heating tool shown in FIG. It is sectional drawing which shows another example of a steam heating tool.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same reference numerals are given to the same components, and the description will be omitted as appropriate.

  FIG. 1 is a schematic cross-sectional view showing an example of the heating tool of the present invention. The heating tool 1 includes a heat generating unit 10 including an oxidizable metal, activated carbon, and water, and a bag 11 that houses the heat generating unit 10. The heating tool 1 is scented with a fragrance composition.

  The heating tool 1 generates heat by an oxidation reaction of an oxidizable metal and imparts a sufficient heating effect, and can have a performance of an exothermic temperature of 40 ° C. or higher and 65 ° C. or lower in measurement according to JIS standard S4100. The heating tool 1 may be a steam heating tool accompanied by the generation of water vapor, or may be a so-called disposable body warmer that generates heat without substantially generating water vapor. Since the heating tool 1 is scented by the fragrance composition, the fragrance composition aromas together with heat when used.

  The heat generating unit 10 includes a heat generating composition including at least an oxidizable metal, activated carbon, and water.

  The oxidizable metal is a metal that generates heat of oxidation reaction, and examples thereof include one or more powders and fibers selected from iron, aluminum, zinc, manganese, magnesium, and calcium. Among these, iron is preferable from the viewpoint of handleability, safety, and production cost, and iron powder is preferably used. Examples of the iron powder include one or more selected from reduced iron powder and atomized iron powder.

When the oxidizable metal is a powder, the average particle size is preferably 10 μm or more, more preferably 20 μm or more, and preferably 200 μm or less from the viewpoint that the oxidation reaction is efficiently performed. More preferably, it is 150 μm or less. Moreover, it is preferable that it is 10-200 micrometers, and it is more preferable that it is 20-150 micrometers.
The particle size of the oxidizable metal refers to the maximum length in the form of powder, and is measured by classification using a sieve, dynamic light scattering method, laser diffraction method or the like.

The content of the oxidizable metal is preferably 100 g / m ² or more, more preferably 200 g / m ² or more, and preferably 3000 g / m ² or less, more preferably, expressed as basis weight. 1500 g / m ² . Further it is preferably 100 to 3000 g / ^{m 2,} and more preferably 200~1500g / ^{m 2.} Thereby, the heat generating temperature of the heat generating part 10 can be raised to a desired temperature.
Here, the content of the iron powder in the heat generating portion 10 can be obtained by an ash test according to JIS P8128 (1995) or a thermogravimetric measuring instrument. In addition, it can be quantified by a vibration sample type magnetization measurement test or the like using the property that magnetization occurs when an external magnetic field is applied.

  As the activated carbon, one or more fine powders or small particles selected from coconut shell charcoal, wood charcoal, and peat charcoal are preferably used. Among these, wood charcoal is preferable from the viewpoint of fragrance stability during storage.

From the viewpoint of widening the contact area and forming a mixed state that easily reacts with the oxidizable metal, it is preferable to use activated carbon having an average particle diameter of 10 μm or more, more preferably 12 μm or more, and 200 μm. The following are preferably used, more preferably 100 μm or less. Moreover, it is preferable to use a thing of 10-200 micrometers, and it is more preferable to use a thing of 12-100 micrometers.
In addition, the average particle diameter of activated carbon means the maximum length in the form of powder, and is measured by a dynamic light scattering method, a laser diffraction method, or the like.

  Activated carbon is preferably used in a powder form, but a form other than the powder form can also be used, for example, a fibrous form can be used.

  The content of the activated carbon is preferably 6 parts by mass or more, more preferably 8 parts by mass or more with respect to 100 parts by mass of the oxidizable metal, from the viewpoint of good heat generation characteristics and the stability of fragrance during storage. And 15 mass parts or less are preferable, More preferably, it is 13 mass parts or less. Moreover, 6-15 mass parts is preferable, More preferably, it is 8-13 mass parts.

  In the exothermic part 10, the exothermic composition may further contain a reaction accelerator. The reaction accelerator is used for the purpose of maintaining the oxidation reaction of the oxidizable metal. In addition, by using a reaction accelerator, it is possible to accelerate the oxidation reaction by destroying the oxide film formed on the oxidizable metal with the oxidation reaction.

  Examples of the reaction accelerator include one or more selected from alkali metals, alkaline earth metal sulfates, and chlorides. Above all, it is selected from various chlorides such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride, ferrous chloride and ferric chloride, and sodium sulfate from the viewpoint of excellent conductivity, chemical stability and production cost. Although 1 type (s) or 2 or more types are used, Sodium chloride is preferable especially from a versatility viewpoint.

  The content of the reaction accelerator in the exothermic part 10 is preferably 1.4 parts by mass or more, more preferably 1.8 parts by mass with respect to 100 parts by mass of the oxidizable metal from the viewpoint of obtaining sufficient exotherm. And not more than 4.5 parts by mass, more preferably not more than 3.7 parts by mass. Moreover, 1.4-4.5 mass parts is preferable, More preferably, it is 1.8-3.7 mass parts.

  In the heat generating part 10, the heat generating composition further contains water. Water functions as a heat source when used in combination with an oxidizable metal or the like. Moreover, it becomes water vapor | steam by the temperature rise accompanying heat_generation | fever.

  The content of water in the exothermic part 10 is preferably 27 parts by mass or more, more preferably 35 parts by mass or more, preferably 83 parts by mass or less, and 70 parts by mass or less with respect to 100 parts by mass of the oxidizable metal. Is more preferable. Moreover, 27-83 mass parts is preferable, and 35-70 mass parts is more preferable.

  The heat generating part 10 is made of, for example, a heat generating sheet or a heat generating powder. Of the exothermic sheet and exothermic powder, it is preferable to use an exothermic sheet from the viewpoint that the heat can be applied uniformly regardless of the posture of the wearer and the effect of the present invention can be sufficiently exerted. In addition, the heat generating sheet can easily make the temperature distribution of heat generation uniform as compared with the heat generating powder, and the effect of the present invention is sufficient from the viewpoint of excellent ability to support an oxidizable metal. It is advantageous in that it can be demonstrated. Examples of the exothermic sheet include those obtained by wet papermaking, those obtained by sandwiching exothermic powder with paper or the like, and those obtained by applying exothermic powder dispersed in water or the like to paper or the like.

  Here, as the heat generating part 10, a sheet containing a fiber called a fiber sheet in particular, and a sheet in which a heat generating powder called a coated sheet dispersed in water is applied to paper or the like is used. An example will be described. Of the heat generating sheet, the fiber sheet contains an oxidizable metal, activated carbon, a fibrous material, an electrolyte, and water, and is preferably in a water-containing state. That is, the fiber sheet is preferably configured by containing an electrolyte aqueous solution in a molded sheet containing an oxidizable metal, activated carbon, and fibrous material. Of the exothermic sheets, the coated sheet is preferably one in which an exothermic powder water dispersion containing an oxidizable metal, activated carbon, an electrolyte and water is applied to paper or the like. Such a heat generating sheet can be manufactured using, for example, a wet papermaking method described in JP-A-2003-102761 or an extrusion method using a die coater.

  The heat generating sheet may be a single layer or a laminated structure. That is, the heat generating sheet may be a stack of a plurality of heat generating sheets per se, or may have a stacked structure in which water retaining sheets are arranged adjacent to each other. In FIG. 1, as an example, a heat generating sheet having a two-layer structure of a molded sheet 10a and a water retaining sheet 10b is shown. The molded sheet 10a can contain an oxidizable metal and activated carbon. The content of the molded sheet 10a is 60% by mass to 90% by mass of the oxidizable metal and 5% by mass to 25% of the activated carbon in the molded sheet 10a. It can be made into the mass% or less. The water retaining sheet 10b is preferably paper or paper with a water-absorbing polymer sandwiched between them.

  Moreover, it is preferable to arrange the water retaining sheet 10b on the second bag body sheet 11b side of the molded sheet 10a. Since the distance between the fragrance composition and the heat generating portion 10 is increased by the interposition of the water retaining sheet 10b, it is preferable because the influence of the activated carbon can be physically suppressed. The second bag sheet 11b will be described later.

  The exothermic composition in the exothermic part 10 may further contain a thickener, a surfactant, a drug, a flocculant, a colorant, a paper strength enhancer, a pH adjuster, a bulking agent, and the like as necessary. .

At least a part of the bag body 11 is breathable, but at least a part thereof is preferably a breathable sheet. The basis weight is 20 g / m ² or more, preferably 25 g / m ² from the viewpoints of keeping warm, preventing condensation during storage, being able to maintain the necessary scent intensity for a long time, and preventing the inside from being seen through. As mentioned above, it is more preferable to set it as 30 g / m < ² > or more. In addition, the basis weight is 90 g / m ² or less, preferably 85 g / m ² or less from the viewpoint of improving the lightness during use by reducing the thickness and weight of the heating tool 1 and from the viewpoint of increasing the rise of fragrance during use. More preferably, it is preferably 80 g / m ² or less. Examples of such a sheet include a nonwoven fabric, a knitted fabric, a breathable sheet (for example, a porous sheet and a plastic film having a vent), a laminated sheet obtained by laminating a nonwoven fabric and a breathable sheet, or a knitted fabric and a breathable sheet. A laminated sheet laminated with a conductive sheet can be used.

  Non-woven fabric manufactured by air-through method, spunbond method, needle punch method, melt blown method, card method, thermal fusion method, hydroentanglement method, solvent bonding method using one or more kinds of fibers Can be used. In particular, from the viewpoint of texture and elasticity, it is preferable to use a non-woven fabric having elasticity. The non-woven fabric having elasticity is preferably a non-woven fabric containing elastic fibers (for example, polyurethane, polyester) or three-dimensional crimped fibers as constituent fibers, and for example, an air-through non-woven fabric, a spunbonded non-woven fabric, or a needle punched non-woven fabric is preferable.

  Specific materials for the nonwoven fabric include one or two selected from polyesters such as PET (polyethylene terephthalate), polyolefins such as PE (polyethylene), PP (polypropylene), and ethylene-propylene copolymer, polyamide, and polyacryl. Synthetic fibers as described above; natural fibers including one or more selected from cellulose, silk, cotton and wool; or fibers obtained by combining these may be used.

  As the breathable sheet, a resin porous sheet or a resin sheet having a vent hole can be used. For example, polyethylene, polypropylene, ethylene vinyl acetate copolymer, or the like can be used. The thickness is preferably 5 μm or more and 200 μm or less. Specifically, the resin-made porous sheet is obtained by forming a melt-kneaded product of a thermoplastic resin and an organic or inorganic filler not compatible with the resin into a film shape and stretching it uniaxially or biaxially. The resin sheet having a fine porous structure, or a resin sheet having a vent hole provided with a fine hole with a needle or the like in a non-breathable sheet or a hardly breathable sheet, or the above-mentioned It is preferable that the air permeable sheet is further provided with fine holes with a needle or the like.

  The non-breathable sheet may be any sheet that does not substantially transmit oxygen. For example, it is selected from polyolefins such as polyethylene and polybutadiene, polyvinyl chloride, polyvinylidene chloride, polyester, polyether, polysulfone, and polyamide. 1 type (s) or 2 or more types can be used. The thickness is preferably 5 μm or more and 200 μm or less.

  The basis weights of the first bag sheet 11a and the second bag sheet 11b are the ones on the side far from the application site such as the skin from the point that the effect of the present invention is fully exhibited and the warmth and feeling during use. It is preferable that the two-bag sheet 11b is the same as or smaller than the first bag-sheet 11a on the side close to the application site.

  The air permeability of the first bag body sheet 11a and the second bag body sheet 11b is such that the second bag body sheet 11b on the side far from the skin is from the viewpoint of sufficiently exerting the effects of the present invention and exhibiting good heat generation characteristics. It is preferable that it is the same as or lower than the first bag sheet 11a on the side close to the skin.

  In FIG. 1, the example which comprises the bag body 11 by sealing the peripheral part of the 1st bag body sheet | seat 11a and the 2nd bag body sheet | seat 11b is shown. The first bag sheet 11a and the second bag sheet 11b may be of the same type or different types. Either one of the first bag body sheet 11a and the second bag body sheet 11b may be air permeable, or both may be air permeable. If both are breathable, one of them may be less breathable than the other.

  The fragrance composition used for flavoring the heating tool 1 is 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one (Firmenich trade name: Dynascon) and 2,4,4, 1 type or 2 types of ketone type fragrance | flavor (1st fragrance | flavor component) selected from 7-tetramethyl-6-octen-3-one (trademark: Claritone) is contained. The content of the first fragrance component is 1% by mass or more, preferably 1.1% by mass or more, more preferably 3.1% by mass with respect to the entire fragrance composition, from the viewpoint of good fragrance during use. From the viewpoint that the fragrance can be maintained during storage, it is 15% by mass or less, preferably 14.8% by mass or less, and more preferably 13.5% by mass or less. Moreover, although it is 1-15 mass%, 1.1-14.8 mass% is preferable and 3.1-13.5 mass% is more preferable.

  In the fragrance composition, as the first fragrance component, at least 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one or 2,4,4,7-tetramethyl-6-octene- Although any one of 3-one should just be included, it is preferable that these 2 types of ketone-type fragrance | flavors are included.

  From the viewpoint of maintaining the scent at the time of use, the content of 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one is preferably 0.01 with respect to the whole fragrance composition. % By mass or more, more preferably 0.05% by mass or more, still more preferably 0.1% by mass or more, and preferably 1% by mass or less, more preferably 0.75% by mass or less. More preferably, it is 0.5 mass% or less. Moreover, 0.01-1 mass% is preferable, 0.05-0.75 mass% or less is more preferable, 0.1-0.5 mass% is still more preferable.

  The content of 2,4,4,7-tetramethyl-6-octen-3-one is preferably 1% by mass or more, more preferably 2% by mass or more, based on the whole fragrance composition. More preferably, it is 3 mass% or more, and preferably 15 mass% or less, More preferably, it is 14 mass% or less, More preferably, it is 13 mass% or less. Moreover, 1-15 mass% is preferable, 2-14 mass% is more preferable, and 3-13 mass% is still more preferable.

  The mass ratio of activated carbon in the heat generating part 10 to the first fragrance component contained in the fragrance composition (activated carbon / first fragrance component) suppresses a change in qualitative scent during storage and keeps heat generation well. From the viewpoint, it is preferably 10 or more, more preferably 13.5 or more, and still more preferably 18 or more, while suppressing the quantitative change of scent during storage, and the change of qualitative scent by the change of scent. From the viewpoint of suppression, it is preferably 800 or less, more preferably 720 or less, and even more preferably 540 or less. The mass ratio of the activated carbon / first fragrance component is preferably 10 to 800, more preferably 13.5 to 720, and still more preferably 18 to 540.

  The fragrance composition used for the fragrance of the heating tool 1 further includes one or more second fragrance components selected from terpene hydrocarbons and aromatic alcohols. One or two or more kinds of second fragrance components selected from terpene hydrocarbons and aromatic alcohols, when contained in a large amount with respect to the entire fragrance composition, the fragrance is altered by storage, In the present invention, it is possible to contain a large amount of the second fragrance in the fragrance composition by using the first fragrance component in combination. That is, the content of the second fragrance component is preferably 50% by mass or more, more preferably 55% by mass or more, still more preferably 60% by mass or more, and preferably 85% by mass or less with respect to the entire fragrance composition. 80 mass% or less is more preferable, More preferably, it is 75 mass% or less. Moreover, 55-85 mass% is preferable, 55-80 mass% is more preferable, and 60-75 mass% is still more preferable.

  The mass ratio of the second fragrance component to the first fragrance component (second fragrance component / first fragrance component) is preferably 5 or more and 90 or less.

  Terpene hydrocarbons include chain terpene hydrocarbons such as myrcene, farnesene and citral; cyclic terpene hydrocarbons such as pinene, limonene, α-terpinene, camphene, ferrandrene, terpinene, terpinolene, p-cymene, cedrene and caryophyllene. Hydrocarbons can be used. These may be used alone or in combination of two or more, but preferably contain at least limonene. The content of limonene is preferably 80% by mass or more and 85% by mass or less with respect to the entire second fragrance component.

  In addition, the aromatic alcohol is selected from benzyl alcohol, phenylethyl alcohol, pamphurfurol (2-methyl-4-phenylpentanol), dimethylbenzyl carbinol and phenylhexanol (3-methyl-5-phenylpentanol). 1 type (s) or 2 or more types can be used.

  Moreover, essential oil may be included in the fragrance | flavor composition as a 2nd fragrance | flavor component. Essential oils include citrus essential oils. Citrus essential oil is obtained from citrus peel, and among them, citrus essential oil mainly composed of limonene is preferable. Citrus essential oil can be contained in the fragrance composition, for example, in an amount of 10% by mass to 20% by mass.

  The perfume composition further includes one or two kinds selected from chain monoterpene alcohols, sesquiterpene alcohols, acetic esters of monoterpene alcohols or alicyclic alcohols, methyl dihydrojasmonate, yonon and damascone. The above fragrance | flavor (3rd fragrance | flavor component) may be included. As a result, the scenting is further improved and the change of the scent during storage can be suppressed.

  Among the third fragrance components, as the chain monoterpene alcohols, for example, one or more selected from geraniol, citronellol, linalool, dihydrolinalool, ethyllinalol, nerol and myrsenol can be used. Moreover, the essential oil containing these compounds can also be used.

  The sesquiterpene alcohols are selected from chain sesquiterpene alcohols such as farnesol and nerolidol, and cyclic sesquiterpene alcohols such as santalol, cedrol, vetiverol (mixture), and patchouli alcohol. Or 2 or more types can be used.

  Examples of acetic acid esters include monoterpene alcohol acetic acid esters such as linalyl acetate, geranyl acetate, citronellyl acetate, ethyl linalyl acetate, lavandulyl acetate, menthanyl acetate, and o-tert-butylcyclohexyl acetate, p-tert-acetate acetate. -1 type, or 2 or more types of acetic esters of alicyclic alcohol, such as butylcyclohexyl, are used.

  The effect of the third fragrance component is exhibited even if the blending amount in the fragrance composition is small, and the content of the third fragrance component is preferably smaller than the content of the second fragrance component. The content of the third fragrance component in the fragrance composition is preferably 10% by mass or more, and preferably 20% by mass or less.

  The mass ratio of the second fragrance component to the third fragrance component (second fragrance component / third fragrance component) is preferably 3 or more and 10 or less.

  In addition to the first, second, and third perfume ingredients, the perfume composition includes, for example, the perfume ingredients described in “Synthetic Perfume Chemistry and Product Knowledge” (Motoichi Indo, Chemical Industry Daily). It can also mix | blend in the range which does not prevent an effect. Moreover, the fragrance | flavor composition used for the fragrance | flavor of the heating tool 1 can contain a solvent, if it is a range which does not prevent the effect of this invention. As the solvent, one or more of dipropylene glycol, ethyl diglycol, isopropyl myristate, benzyl benzoate, triethyl citrate and diethyl phthalate can be used.

  The usage-amount of a fragrance | flavor composition can be suitably selected according to the kind, the specific use of the heating tool 1, etc. Although it depends on the type of the fragrance composition, as a general range, 0.005 parts by mass or more is desirable with respect to 100 parts by mass of the oxidizable metal of the heat generating part 10, and 0.007 parts by mass or more is more preferable. 0.06 parts by mass or less is preferable, and 0.045 parts by mass or less is more preferable. Moreover, 0.005-0.06 mass part is preferable, and 0.007-0.045 mass part is more preferable.

  As a method for flavoring the heating tool 1, when the fragrance composition is liquid, there is a method in which the fragrance composition is directly added to the heating tool 1 by spraying or the like. In addition, there is a method in which a sheet material, a powder, a fat and oil carrier, and the like are perfumed to form a perfumed sheet, a powder perfume, or a paste-like perfume and added to the heating tool 1. When the fragrance composition is solid, there is a method in which the fragrance composition is appropriately added to the heating tool 1.

  It is preferable for product management that the fragrance composition is applied between the heat generating portion 10 and the bag 11. As a specific method for applying the fragrance composition between the heat generating portion 10 and the bag body 11, for example, the inner surface of the bag body 11 may be impregnated with the fragrance composition directly, or as shown in FIG. A perfume sheet 13 formed by perfume a sheet material with a perfume composition may be disposed between them, or a powder perfume or paste-like perfume obtained by perfume on a powder or oily carrier. A fragrance may be applied in the form of a sheet. When using the perfume sheet | seat 13, specifically, you may give by arrange | positioning adjacent to the inner surface of the bag body 11, and the perfume sheet | seat 13 is applied to the inner surface of the bag body 11 with an adhesive agent. You may adhere and apply. Here, in the present specification, “adjacently arranged” means a state that is close but not necessarily in contact, that is, a state that may or may not be in contact.

  The perfume sheet 13 preferably includes a sheet material including a fiber material such as paper, non-woven fabric, and woven fabric, and a sheet material having moisture absorption and oil absorption such as a porous film. The material can be, for example, natural fibers such as general paper made mainly of wood pulp among silk, cotton, wool, and cellulose, and synthetic fibers such as polyamide, polyolefin, and polyester. Among them, natural fibers containing cellulose such as paper, such as water-absorbing paper, can effectively suppress the change in scent during storage, exhibit a good scent equivalent to that immediately after production, and reduce weight. Is preferable in that it is possible.

  In the bag body 11, the heat generating part 10 may be accommodated in the accommodating body 12, as shown in FIG. The container 12 is at least partially breathable. In the example shown in FIG. 1, specifically, the container 12 has a shape formed by joining the peripheral edges of the first container sheet 12 a and the second container sheet 12 b to each other. The container 12 is in a non-joined state at a part inside the joined peripheral edge part, thereby forming a single space for housing the heat generating part 10.

In this invention, the air permeability of the 2nd container sheet | seat 12b can also be made larger than the air permeability of the 1st container sheet | seat 12a. Thereby, it becomes possible to further suppress the influence of the activated carbon in the heat generating part on the fragrance composition. That is, it is preferable that the air permeability of the second container sheet 12b is 2 times or more, further 5 times or more, particularly 10 times or more than the air permeability of the first container sheet 12a.
The air permeability is a value measured by JIS P8117, and is defined as the time required for 100 ml of air to pass through an area of 6.42 cm ² under a constant pressure.

  The 1st container sheet | seat 12a may have air permeability so that permeation | transmission of air and water vapor | steam is possible. On the other hand, the second container sheet 12b may be less breathable or non-breathable than the first container sheet 12a. When the second container sheet 12b is difficult to breathe, the air permeability of the second container sheet 12b is preferably 5,000 seconds or more, more preferably 10,000 seconds or more, and 20 More preferably 30,000 seconds or more, and even more preferably 30,000 seconds or more. On the other hand, the air permeability of the first container sheet 12a is 1,000 seconds or more and 50,000 seconds or less regardless of whether the second container sheet 12b is non-breathable or non-breathable. Is preferred.

  As a specific material of the first container sheet 12a and the second container sheet 12b, a melt blown nonwoven fabric or a moisture permeable film is preferably used in terms of controlling air permeability and preventing leakage of powder. It is done. As the moisture permeable film, for example, a fine porous material obtained by forming a melt-kneaded product of a thermoplastic resin and an organic or inorganic filler incompatible with the resin into a film shape and stretching it uniaxially or biaxially. What has a structure can be used. In addition, the air permeable sheet | seat which can be used for the above-mentioned bag 11 and a non-air permeable sheet | seat may be sufficient. The 1st container sheet 12a and the 2nd container sheet 12b may be comprised from the sheet material of 1 sheet, and may be comprised from the laminated body of the some sheet material.

  As shown in FIG. 1, when the heat generating part 10 includes a molded sheet 10 a and a water retaining sheet 10 b, it is far from the application site such as skin from the viewpoint of improving the lightness at the time of use and giving a sufficient thermal effect. It is preferable to arrange the water retaining sheet 10b on the side, specifically, on the second container sheet 12b side.

  As described above, the fragrance composition is preferably applied between the heat generating portion 10 and the bag body 11, but more preferably applied between the container 12 and the bag body 11. When the 2nd container sheet | seat 12b interposes between a fragrance | flavor composition and the heat generating part 10, since the distance of a fragrance | flavor composition and the heat generating part 10 becomes long, the influence of activated carbon can be suppressed physically.

  As a specific example of applying the fragrance composition to the outer surface of the container 12, the fragrance composition may be directly applied to a sheet on the outer surface of the container 12. In addition, the sheet | seat of the outer surface of the container 12 may be made equivalent to a fragrance | flavor sheet | seat, and a fragrance | flavor composition may be given to this sheet | seat. That is, a sheet equivalent to the perfume sheet is laminated on the outer surface of the second container sheet 12b using a method such as an adhesive or heat fusion, and the sheet on the outer surface of the container 12 is equivalent to the perfume sheet. It may be a thing. As a result, a sufficient thermal effect can be imparted without causing temperature inhibition by the sheet, and perfume is easy, the fragrance composition of the fragrance composition becomes extremely high, and the scent change is more effectively suppressed. It is also possible. When using the perfume sheet | seat 13, it is preferable to arrange | position adjacent to the container 12 so that it may illustrate. As described above, in the present specification, “adjacently arranged” means a state that is close but not necessarily in contact, that is, a state that may or may not be in contact.

  When the first container sheet 12a is located on the side close to the application site such as skin and the second container sheet 12b is located on the side far from the application site, the perfume sheet 13 is far from the application site. It is arranged on the outer surface of the second container sheet 12b located on the side or is applied to the outer surface, thereby improving the lightness during use and giving a sufficient thermal effect to the application site, and at the same time having a good scent Can be achieved.

  It is preferable that the heating tool 1 is hermetically sealed with a packaging material (not shown) having oxygen barrier properties before use.

  According to the heating tool 1, selected from 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one and 2,4,4,7-tetramethyl-6-octen-3-one Since the fragrance composition containing 1% by mass or more and 15% by mass or less of the one or more types of ketone-based fragrances, the fragrance is good during use and the fragrance is stable. It becomes a heating tool with excellent properties and little change in scent by storage. The heating tool 1 is also excellent from the viewpoint of heat generation characteristics.

  As a more specific example of the heating tool 1, the steam heating tool 100 will be described below. FIG. 2 shows a plan view of the steam heating device 100. This steam heating tool 100 is of a so-called eye mask type, and the eye and its water vapor (hereinafter also referred to as “steam heat”) heated to a predetermined temperature in contact with the human eye and its surroundings. It is used to add to the surroundings. The steam heating tool 100 is fragranced by the fragrance composition containing the first fragrance component and the second fragrance component.

  The steam heating device 100 includes a main body 101 and an ear hooking portion 102 in which a hole 104 into which an ear is inserted is formed. The main body 101 has a horizontally long shape having a longitudinal direction X and a width direction Y orthogonal thereto. The main body 101 has a substantially oval shape. The ear hooks 102 are used as a pair, and each ear hook 102 is attached to each end of the main body 101 in the longitudinal direction (X direction). The steam heating tool 100 is mounted so that each ear hook 102 is hung on the wearer's ear and the main body 101 is covered with both eyes of the wearer. Under this wearing condition, the steam temperature generated from the steam heating device 100 is applied to the eyes of the wearer, and the fragrance component is volatilized, thereby relieving eye fatigue, redness, and eye strain, and providing a sense of relaxation. It is done. In addition, a feeling of falling asleep is also induced.

  FIG. 3 shows an exploded perspective view of the steam heating device 100. In the figure, the ear hooking portion 102 is disposed on the main body portion 101. 4 shows a cross-sectional view of the steam heating device 100 along the X direction. The main body 101 of the steam heating device 100 includes a heat generating part 121 and a bag body 110 that houses the heat generating part 121. The heat generating portion 121 is housed in a housing 122 having at least a part of air permeability and constitutes a heat generating body 120. The heat generating part 121 corresponds to the heat generating part 10 in FIG. 1, and the bag body 110 corresponds to the bag body 11 in FIG.

  The heat generating part 121 is in the same mode as the heat generating part 11. That is, the heat generating part 121 includes at least an oxidizable metal, activated carbon, and water, but preferably further includes a reaction accelerator. The heat generating portion 121 may be a single layer or a laminated structure, or may have a two-layer structure as shown in FIG.

  The fragrance composition used for the flavoring of the steam heating device 100 is the same as the fragrance composition that can be used in the heating device 1 of FIG. 1, and the first fragrance composition is 1% by mass or more and 15% by mass or less with respect to the entire fragrance composition. What is necessary is just to contain the 1 fragrance | flavor component and the 2nd fragrance | flavor component. Thereby, it can be set as the steam heating tool 100 which produces | generates steam temperature heat at the time of use, and exhibits citrus fragrance. The second fragrance component is preferably contained in the fragrance composition in an amount of 55% by mass to 85% by mass.

  In the steam heating device 100, the bag body 110 has a first bag sheet 110a located on the side close to the wearer's skin and a second bag sheet 110b located on the side far from the wearer's skin. Yes.

The second bag sheet 110b is preferably a sheet having a basis weight of 20 g / m ² or more and 200 g / m ² or less, particularly from the viewpoint of preventing the inside from being seen through and from the viewpoint of heat retention. More preferably, the entire two-bag sheet 110b is a sheet having a basis weight of 20 g / m ² or more and 200 g / m ² or less.

Further, for the same reason as the second bag sheet 110b, at least a part of the first bag sheet 110a may have a basis weight of 20 g / m ² or more and 200 g / m ² or less. A sheet having a basis weight of 20 g / m ² or more and 200 g / m ² or less is more preferable.

  From the viewpoint of enhancing the feeling of warmth and feeling during use, the basis weight should be the same as or smaller than the first bag sheet 110a on the side farther to the skin than the first bag sheet 110a on the side closer to the skin. preferable. What is necessary is just to select suitably the thickness of the 1st bag body sheet | seat 110a and the 2nd bag body sheet | seat 110b, and the thickness of a constituent fiber.

  The first bag sheet 110a and the second bag sheet 110b have the same shape and are substantially oval. And the external shape of the 1st bag body sheet | seat 110a and the 2nd bag body sheet | seat 110b has comprised the external shape of the main-body part 101. FIG. The first bag sheet 110a and the second bag sheet 110b are overlapped, joined at their peripheral edges, and joined at the center in the X direction along the Y direction (dotted portions in FIG. 3). The bag body 110 has two spaces inside. In order to join the first bag sheet 110a and the second bag sheet 110b, for example, a hot melt adhesive can be used.

  The bag body 110 has substantially V-shaped notches 113a and 113b cut inwardly along the Y direction from the long side at the position of the center of the two long sides extending in the X direction. . The notch 113a is located between or near the wearer's eyebrows when the steam heating device 100 is attached. The notch 113b is located on the wearer's nose bridge when the steam heating device 100 is worn. Therefore, the notch portion 113b is more severed than the notch portion 113a. Note that at least one of the notch portions 113a and 113b shown in FIG. 2 may be a slit.

  3 and 4, the heating part 121 is housed in a housing 122 having at least a part of air permeability to form the heating body 120, and the steam heating tool 100 housed in the bag body 110 is further configured. An example is illustrated. In this example, specifically, the container 122 has a shape formed by joining the peripheral portions of the first container sheet 122a and the second container sheet 122b to each other. The accommodating body 122 is in a non-joined state at a portion inside the joined peripheral edge portion, whereby a single space for accommodating the heat generating portion 121 is formed. The container 122 corresponds to the container 12 of FIG. 1, specifically, the first container sheet 122a corresponds to the first container sheet 12a of FIG. 1, and the second container sheet 122b is the second container. It corresponds to the sheet 12b.

  The fragrance composition is preferably applied between the heat generating portion 121 and the bag body 110, more preferably applied between the inside of the bag body 110 and the heat generating portion, and the outer surface of the container 122. More preferably, it is particularly preferably applied to the outer surface of the second container sheet 122b. When the 2nd container sheet | seat 122b intervenes between a fragrance | flavor composition and the heat generating part 121, since the distance of a fragrance | flavor composition and the heat generating part 121 becomes long, the influence of activated carbon can be suppressed physically.

  As a specific example of applying the fragrance composition to the outer surface of the container 122, the fragrance composition may be directly applied to a sheet on the outer surface of the container 122. In addition, the sheet | seat of the outer surface of the container 122 may be equivalent to a perfume sheet | seat, and a fragrance | flavor composition may be given to this sheet | seat. That is, a sheet equivalent to the perfume sheet is laminated on the outer surface of the second container sheet 122b using a method such as an adhesive or heat fusion, and the sheet on the outer surface of the container 122 is equivalent to the perfume sheet. It may be a thing. As a result, a sufficient thermal effect can be imparted without causing temperature inhibition by the sheet, and perfume is easy, the fragrance composition of the fragrance composition becomes extremely high, and the scent change is more effectively suppressed. It is also possible. The scented sheet 130 is in the same mode as the scented sheet 13. When the scented sheet 130 is used, specifically, the scented sheet 130 may be disposed adjacent to the inner side surface of the bag body 110, or the scented sheet 130 may be applied to the inner side surface of the bag body 110 with an adhesive. You may adhere and apply. As described above, “adjacently arranged” in the present specification means a state that is close but not necessarily in contact, that is, a state that may or may not be in contact.

  Other specific examples of applying the fragrance composition between the inside of the bag body 110 and the heating element 120 include, for example, powder fragrances and paste-like fragrances obtained by fragranceing powder or oil and fat carriers. It may be applied in the form of a sheet, or as shown in FIG. 4, a perfume sheet 130 formed by perfume the sheet material with a perfume composition may be disposed between the bag body 110. You may apply | coat a fragrance | flavor composition directly to the inner surface of this.

  When the first container sheet 122a is located on the side close to the wearer's skin and the second container sheet 122b is located on the side far from the wearer's skin, the perfume sheet 130 is placed on the wearer's skin. It is arranged on the outer surface on the side of the second container sheet 122b located on the side far from the surface or is applied to the outer surface, thereby improving the lightness during use and imparting a sufficient thermal effect to the wearer's skin. It is possible to achieve a good scent.

  As specific materials of the first container sheet 122a and the second container sheet 122b, the same materials as the first container sheet 12a and the second container sheet 12b can be selected. Moreover, the air permeability of the 1st container sheet | seat 122a and the 2nd container sheet | seat 122b can be set similarly to the 1st container sheet | seat 12a and the 2nd container sheet | seat 12b.

  FIG. 4 shows a fixed state of the bag body 110 and the heating element 120. The heating element 120 is fixed inside the bag 110 by connecting the inner surface of the second bag sheet 110b and the outer surface of the second container sheet 122b by the fixing portions 103a and 103b. Is done. The fixing portions 103a and 103b can be, for example, an adhesive or a heat seal.

  As shown in FIGS. 3 and 4, the ear hooking portion 102 in the steam heating device 100 is disposed on the first bag sheet 110 a in the main body portion 101 before being used. When using the steam heating device 100, as shown in FIG. 2, the ear hooking portion 102 is reversed outward in the X direction to be in an open state. In a state before use, that is, in a state where the left and right ear hooks 102 are located on the main body 101, the contour formed by the left and right ear hooks 102 is substantially the same as the contour of the main body 101. Yes.

The steam heating device 100 of the present embodiment is entirely packaged by a packaging material (not shown) having an oxygen barrier property before use, so that the heat generating part 121 does not come into contact with oxygen in the air. Yes. The film constituting this packaging material is not particularly limited, but specifically, synthetic films such as metal films such as aluminum, polyolefins such as polypropylene, PET, ethylene vinyl alcohol copolymer, ethylene vinyl acetate copolymer, polyacrylonitrile, etc. Examples thereof include a resin film or a film obtained by depositing ceramic or aluminum on these synthetic resin films. The packaging material has an oxygen permeability coefficient (ASTM D3985) of preferably 10 cm ³ · mm / (m ² · day · MPa) or less, more preferably 2 cm ³ · mm / (m ² · day · MPa) or less. Things can be used.

  FIG. 5 shows a steam heating tool 200 as another example of the steam heating tool 100. In the steam heating device 100, an example in which the fragrance composition is applied to the outer surface of the container, particularly from the inside of the bag body to the heat generating portion, the steam heating device 200 from the inside of the bag body 110 is given. An example is shown in which a fragrance composition is applied to a sheet material separately arranged on the outside of the container, particularly up to the heating element 220. Specifically, in the steam heating device 200 shown in FIG. 5, a perfume sheet 230 is disposed between the inside of the bag body 110 and the heating element 220. In particular, it is preferable that the perfume sheet 230 is disposed adjacently between the second bag body sheet 110b and the heating element 220 in the bag body 110. The perfume sheet 230 is provided with a perfume composition containing the first perfume component and the second perfume component, and the content of the first perfume component in the perfume composition is relative to the whole perfume composition. 1 mass% or more and 15 mass% or less.

  The perfume sheet 230 is in a non-adhering state with the second bag sheet 110b and the housing 222 of the heating element 220, and is in a state of being adjacently disposed. Alternatively, it is slightly adhered to the second bag sheet 110b to such an extent that positional displacement does not occur. The sheet material constituting the perfume sheet 230 may be the same shape as the container 222 or may be smaller than the container 222. Especially, when the shape is the same as that of the heat generating part 221, it is preferable that the scent is removed by heat generation.

  The heat generating part 221 has the same mode as the heat generating part 10. The heat generating portion 221 may have a single layer or a laminated structure, or may have a two-layer structure as shown in FIG.

  The heating element 220 is fixed to the bag body 110 by a fixing portion 203. Except as described above, the steam heating tool 200 is the same as the steam heating tool 100, and the same effect as the steam heating tool 100 can be obtained. For example, the first container sheet 222a corresponds to the first container sheet 122a, and the second container sheet 222b corresponds to the second container sheet 122b.

  The steam heating tool 100 and the steam heating tool 200 have been described with reference to the eye mask used in contact with the eyes of the wearer, but instead of this, the wearer's body, for example, the shoulder, It may be used in contact with the waist, elbow, knee or the like. Or you may affix and use on clothing. When the steam heating tool 100 is brought into contact with the wearer's body, a fixing means such as an adhesive may be provided in place of the ear hook 102. That is, when using it by making it contact | abut to a wearer's body, the fixing means, such as an adhesive, should just be provided in the surface of the 1st bag body 110a in the bag body 110, and it affixes on a wearer's clothing. When used, a fixing means such as an adhesive may be provided on the surface of the second bag sheet 110b in the bag body 110.

  According to the steam heating devices 100 and 200, 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one and 2,4,4,7-tetramethyl-6-octene-3- 1 to 2 types of ketone-based fragrance (first fragrance component) selected from ON is contained in an amount of 1 to 15% by mass with respect to the entire fragrance composition, and further selected from terpene hydrocarbons and aromatic alcohols. Because it is perfumed with a perfume composition containing one or more perfume ingredients (second perfume ingredient), it has good fragrance during use, excellent scent stability, and changes in scent due to storage It becomes a heating tool with little. Conventionally, the present inventors have found that terpene hydrocarbons and aromatic alcohols have a low fragrance stability and are difficult to contain for those which adversely affect the stability of a fragrance such as a heating tool. In particular, it has been found that when a large amount of perfume components such as terpene hydrocarbons and aromatic alcohols are contained, the problem is great. However, by including the specific ketone-based fragrance in a predetermined range, the fragrance composition contains one or more second fragrance components selected from 55% by mass or more of a terpene hydrocarbon and an aromatic alcohol. Even when it is contained, it becomes a steam heating tool having a good fragrance even after storage. Moreover, the steam heating tools 100 and 200 are excellent from the viewpoint of heat generation characteristics.

  As mentioned above, although embodiment of this invention was described with reference to drawings, these are the illustrations of this invention, Various structures other than the above are also employable. The present invention further includes the following aspects with respect to the above-described embodiments.

<1> A heating tool having a heat generating part including an oxidizable metal, activated carbon, and water, and a bag body that is at least partially breathable and that houses the heat generating part. One or two selected from-(5,5-dimethylcyclohexen-1-yl) -4-penten-1-one and 2,4,4,7-tetramethyl-6-octen-3-one The fragrance composition contains a first fragrance component, and a fragrance composition containing one or more second fragrance components selected from terpene hydrocarbons and aromatic alcohols. It is a heating tool whose content of the said 1st fragrance | flavor component is 1 mass% or more and 15 mass% or less with respect to this whole fragrance | flavor composition.

<2> The second perfume component is preferably myrcene, farnesene, citral, pinene, limonene, α-terpinene, camphene, ferrandolene, turpinene, terpinolene, p-cymene, cedrene, caryophyllene, benzyl alcohol, phenylethyl alcohol , One or two or more selected from, but not limited to, pamphurfleur (2-methyl-4-phenylpentanol), dimethylbenzyl carbinol and phenylhexanol (3-methyl-5-phenylpentanol), The heating tool according to <1>, wherein at least limonene is included as the second fragrance component.
<3> The content of the second fragrance component in the fragrance composition is 55% by mass or more and 85% by mass or less, and preferably 60% by mass or more and 75% by mass or less with respect to the entire fragrance composition. The heating tool according to <1> or <2>.
<4> The mass ratio of the activated carbon in the heat generating portion to the mass of the first fragrance component in the fragrance composition is 10 or more and 800 or less, preferably 13.5 or more and 720 or less, more preferably. Is the heating tool according to any one of <1> to <3>, which is 18 or more and 540 or less.
<5> The heating tool according to any one of <1> to <4>, wherein the fragrance composition is applied between the inside of the bag and the heat generating portion.
<6> The heat generating part is housed in a container having air permeability at least partially to form a heat generating body, and the fragrance composition is applied between the inside of the bag body and the heat generating part. The heating tool as described in <5> above.
<7> The heating tool according to <6>, wherein the fragrance composition is applied to an outer surface of the container.
<8> The heating tool according to any one of <1> to <7>, wherein the fragrance composition is applied by a scented sheet.
<9> The heating tool according to <8>, wherein the perfume sheet is obtained by applying the perfume composition to a sheet material.
<10> The heating tool according to <9>, wherein the sheet material contains cellulose.
<11> The heating device according to any one of <1> to <10>, wherein the heating unit generates water vapor along with oxidation of the oxidizable metal.
<12> The method for using a heating tool according to any one of <1> to <11>, wherein the heating tool is used while being in contact with both eyes of the wearer.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the scope of the present invention is not limited to such examples. Unless otherwise specified, “%” and “part” mean “% by mass” and “part by mass”, respectively.

Examples 1 to 3, Comparative Examples 1 and 2
A steam heating device having the structure shown in FIGS. 2 to 4 was produced by the following procedures (1) to (3).
(1) Production of sheet-like heating part <raw material composition blend>
・ Oxidizable metal: Iron powder, manufactured by Dowa Mining Co., Ltd., trade name “RKH”: 83%
-Fibrous material: Pulp fiber (Fletcher Challenge Canada, product name NBKP “Mackenzi (adjusted to CSF 200 ml)”): 8%
-Activated carbon: average particle size 45 μm (manufactured by Nippon Enviro Chemical Co., Ltd., trade name “Carborafyn”): 9%

  Polyamide epichlorohydrin resin (manufactured by Seiko PMC Co., Ltd., trade name “WS4020”) based on 100 parts of the solid content (total of oxidizable metal, fibrous material and activated carbon) of the raw material composition. “) 0.7 part and 0.18 part of carboxymethylcellulose sodium (Daiichi Kogyo Seiyaku Co., Ltd., trade name“ HE1500F ”) as an anionic flocculant was added. Furthermore, water (industrial water) was added until the solid concentration was 12% to obtain a slurry.

<Making conditions>
Using the slurry, it was diluted with water to 0.3% just before the paper making head, and paper was made at a line speed of 15 m / min with an inclined short paper machine to produce a wet shaped sheet.

<Drying conditions>
The wet molded sheet was sandwiched with felt and dehydrated under pressure, passed through a heated roll at 140 ° C. as it was, and dried until the water content became 5% or less. The basis weight after drying was 450 g / m ² and the thickness was 0.45 mm. The composition of the molded sheet thus obtained was measured using a thermogravimetric measuring apparatus (TG / DTA6200, manufactured by Seiko Instruments Inc.), and as a result, it was 83% iron, 9% activated carbon, and 8% pulp.

<Preparation of sheet-like heating part>
The following electrolyte solution was injected into the resulting molded sheet so that the amount of the electrolyte solution was 42 parts with respect to 100 parts of the molded sheet. The electrolytic solution was infiltrated into the entire molded sheet using capillary action to obtain a rectangular sheet-like heat generating part (basis weight: 450 g / m ² , size 49 mm × 49 mm).

<Electrolyte>
Electrolyte: Purified salt (NaCl)
Water: Industrial water electrolyte concentration: 5%

(2) Production of heating element The first container sheet in the container was composed of a porous stretched polyethylene moisture-permeable film containing calcium carbonate (air permeability 2,500 seconds according to JIS P8117). The 2nd container sheet | seat was comprised from the non-breathable film made from polyethylene. Water absorbent paper (basis weight 35 g / m ² ) is laminated on one surface of the second container sheet, and the first container sheet and the second container sheet Were stacked so that the water-absorbing paper faced outward, and the sheets were joined at the peripheral edge to obtain a rectangular heating element. And the water absorbing paper was impregnated with the fragrance composition shown in Table 1 below. The impregnation amount of the fragrance composition was 18 mg with respect to 1.08 g of the solid content of the heat generating part.

(3) Production of Steam Heater The first bag sheet is a polypropylene nonwoven fabric (needle punch method, basis weight 80 g / m ² ), and the second bag sheet is a polyethylene terephthalate nonwoven fabric (air-through method, basis weight 30 g / m ^2). As shown in FIG. 3, two heating elements obtained above are sandwiched between both bag sheets, and the first bag sheet and the second bag sheet in the vicinity of the peripheral edge and the vertical center line. We joined together. Furthermore, as shown in FIG. 2, a non-woven ear hook part was attached to the outer surface of the first bag sheet to obtain a target steam heating tool. Each of the above operations was performed in an atmosphere without oxygen.

  After fragrance | flavoring each fragrance | flavor composition of the Example and comparative example which are shown in Table 1 by the above-mentioned method, respectively, the obtained vapor | steam warming tool is two in the vertical centerline L so that a 1st bag body sheet may become inside. Folded into a bag and sealed in a bag having oxygen barrier properties (laminated film of PET 13 μm / aluminum 7 μm / polypropylene 40 μm) and left overnight to stabilize the perfume ingredients. The mass ratio of activated carbon to the first fragrance component (activated carbon / first fragrance component) is shown in Table 1.

The evaluation shown in Table 1 was performed as follows.
[Evaluation]
1) Fragrance intensity For two types of steam heaters that have been left overnight (this is called the steam heater immediately after perfume) and steam heaters that have been stored in a 50 ° C constant temperature bath for one month. ) Was opened, heat generation of the steam heating tool and generation of water vapor were started, and the intensity of the scent after 5 minutes from the opening was evaluated according to the following criteria.
Two types of odor special panels were left overnight in each example and each comparative example (this is called a steam heating tool immediately after perfume), and stored in a 50 ° C thermostatic bath for one month. Each of the five minutes after opening the pillow was allowed to smell, and the “scent intensity” was subjected to an absolute evaluation of 1 to 5 in 5 stages, and the averaged results are shown in Table 1.
<Evaluation criteria for fragrance intensity: 5-level absolute evaluation>
1: Insufficient strength 2: Insufficient strength 3: Intensity has reached the required level 4: Intensity 5: Insufficient strength

2) Characteristics of citrus incense The steam heating tool left overnight and the steam heating tool stored for one month in a thermostatic bath at 50 ° C are used to open the pillows to generate heat and generate steam. The scent of citrus fruits (citrus) 5 minutes after opening was evaluated according to the following criteria.
<Evaluation criteria for citrus scents: 5-step absolute evaluation>
1: Characteristic of citrus incense is quite poor 2: Characteristic of citrus incense is not present 3: Characteristic of citrus incense has reached the required level 4: Characteristic of citrus incense is present 5: Characteristic of citrus incense is sufficient

3) Maximum temperature Using the measuring device based on JIS S4100, the 1st bag body sheet side of the steam heating tool was stuck on the measurement surface, and the exothermic measurement was performed. The unit in Table 1 is “° C.”.

  The steam heating tool of Comparative Example 1 has low scent strength and citrus scent characteristics immediately after the scent, and the scent intensity was considerably insufficient after storage and the citrus scent characteristics were poor. Both the scent intensity and the characteristics of the citrus scent were good for the heating tool both immediately after the scent and after storage. The steam heating tool of Comparative Example 2 had too much first fragrance component, and the characteristics of citrus scent were quite poor both immediately after scenting and after storage, and the exothermic characteristics after storage were reduced.

DESCRIPTION OF SYMBOLS 1 Heating tool 10 Heat generating part 10a Molded sheet 10b Water retention sheet 11 Bag 11a First bag sheet 11b Second bag sheet 12 Container 12a First container sheet 12b Second container sheet 13 Fragrance sheet 100 Steam heater DESCRIPTION OF SYMBOLS 101 Main body part 102 Ear hook part 103a Fixing part 103b Fixing part 104 Hole 110 Bag body 110a 1st bag body sheet 110b 2nd bag body sheet 113a Notch part 113b Notch part 120 Heat generating body 121 Heat generating part 122 Container 122a 1st container Sheet 122b Second container sheet 130 Scented sheet 200 Steam heating tool 203 Fixing part 220 Heating element 221 Heating part 222 Container 222a First container sheet 222b Second container sheet 230 Scented sheet L Center line

Claims (8)

A heat generating part comprising an oxidizable metal, activated carbon and water;
A bag body that is at least partially breathable and contains the heat generating portion;
A heating device having
The heating device is selected from 1- (5,5-dimethylcyclohexen-1-yl) -4-penten-1-one and 2,4,4,7-tetramethyl-6-octen-3-one. 1 or 2 types of 1st fragrance | flavor components, and the fragrance | flavor composition containing 1 type, or 2 or more types of 2nd fragrance | flavor components selected from a terpene hydrocarbon and aromatic alcohol,
The content of the first perfume component of the perfume composition is state, and are 1 wt% to 15 wt% or less with respect to the total perfume composition,
The content of the second perfume component of the perfume composition is Ru der 55 mass% or more and 85 mass% or less with respect to the total perfume composition, warming device. The heating tool according to claim 1, wherein a mass ratio of the activated carbon in the heat generating portion to a mass of the first fragrance component in the fragrance composition is 10 or more and 800 or less. The heating tool according to claim 1 or 2 , wherein the fragrance composition is applied between the inside of the bag and the heat generating portion. The heat generating part is housed in a container having air permeability at least in part to form a heat generating body, and the fragrance composition is applied between the inside of the bag and the heat generating part. Item 4. The heating tool according to Item 3 . The heating tool of Claim 4 with which the said fragrance | flavor composition is given to the outer surface of the said container. The warming device further includes a perfuming sheet, said perfume composition has been performed in the perfumed sheets, warming device according to any one of claims 1 to 5. The heating tool according to claim 6 , wherein the perfume sheet is obtained by applying the perfume composition to a sheet material. The heating tool according to claim 7 , wherein the sheet material contains cellulose.

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