JP2013042963A - Heating implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight heating implement for presenting an excellent scent even in use.SOLUTION: The heating implement includes: a heating part including metal to be oxidized and activated carbon; and a bag at least a part of which has gas permeability and which stores the heating part. The heating implement is perfumed by a scent composition including damascenone. At least a part of the bag is constituted with a sheet with the basis weight of 20-90 g/m. The content of damascenone is 0.2-0.7 mass% with respect to the whole quantity of the scent composition.

Description

  The present invention relates to a heating tool.

In recent years, various things are known regarding the heating tool which generate | occur | produces heat | fever by the oxidation reaction of an oxidizable metal.
Patent Document 1 describes a heating tool having good fit and usability when attached to a wearer's body or clothing.

  Patent Document 2 describes a heating tool in which a transdermally absorbable drug is added to a heat generating portion together with two specific types of solubilizers and surfactants. In Patent Document 2, it is said that such a heating tool significantly improves the releasability of the transdermally absorbable drug due to the heat generated in the heat generating part to the skin, and can effectively impart the physiological action of the drug.

  Moreover, the heating tool which exhibits a fragrance at the time of use by giving a fragrance | flavor is also known (patent documents 3-5).

JP 2009-131597 A JP2011-020991A JP 2010-022405 A JP 2010-131088 A JP 2010-51690 A

  In recent years, from the viewpoint of lightness and ecology during use, the heater is also required to be thin and light. However, the present inventors have found that, in a heating tool that generates heat by an oxidation reaction of an oxidizable metal, if the weight of raw materials used, such as bags, is reduced, deterioration of the scent during storage cannot be sufficiently suppressed. For this reason, there has been a demand for a technique capable of exhibiting a good fragrance equivalent to that immediately after manufacture, even if the heating tool is reduced in weight, sufficiently suppressing the deterioration of the fragrance during storage.

  An object of the present invention is to provide a light-weight heating tool that exhibits a good scent immediately after production even when in use.

  As a result of intensive studies, the present inventors have adopted a fragrance composition containing a specific amount of a specific component in a heating tool that generates heat by an oxidation reaction of an oxidizable metal, thereby providing a bag having a relatively small basis weight. It has been found that even a heating tool in which a heat generating part is housed in the body can remarkably suppress a decrease in the intensity of scent during storage and deterioration of the scent. Moreover, according to this heating tool, it also newly discovered that fragrance rises quickly.

The present invention
A heating part comprising an oxidizable metal and activated carbon;
A bag body that is at least partially breathable and contains the heat generating portion;
A heating tool having
The heating tool is perfumed with a fragrance composition containing damasenone,
At least a part of the bag is composed of a sheet having a basis weight of 20 to 90 g / m ² ,
The content of the damasenone is 0.2 to 0.7% by mass with respect to the total amount of the fragrance composition, and provides a heating tool.

  According to the present invention, it is possible to remarkably suppress a decrease in strength of a scent during storage and deterioration of the scent, exhibiting a good scent equivalent to that immediately after production, and reducing the weight of the scent quickly when used. A heating tool is provided.

It is typical sectional drawing which shows an example of the heat generating tool of this invention. 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 which follows 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. A heating tool 1 shown in FIG. 1 includes a heating part 10 that includes an oxidizable metal and activated carbon, and a bag 11 that is at least partially breathable and that houses the heating part 10. At least a part of the bag 11 is composed of a sheet having a basis weight of 20 to 90 g / m ² . Moreover, the heating tool 1 is fragrance | flavored with the fragrance | flavor composition containing a damasenone.

  The heating tool 1 generates heat by an oxidation reaction of an oxidizable metal and gives a sufficient heating effect, and can have a performance of a heating temperature of 40 to 60 ° C. in the measurement according to JIS standard S4100. The heating tool 1 may be a steam heating tool that accompanies the generation of water vapor, or may be a so-called disposable body warmer that generates heat substantially without the generation of water vapor. The value of the present invention is high when it is a steam heating tool. Since the heating tool 1 is scented with the fragrance composition, it is fragrant with the fragrance composition together with the heat during use.

  The heat generating part 10 includes a heat generating composition containing at least an oxidizable metal and activated carbon. The exothermic composition preferably further contains an electrolyte and water.

  Examples of the oxidizable metal include powders and fibers of iron, aluminum, zinc, manganese, magnesium, calcium, and the like. Among these, iron, particularly iron powder, is preferably used from the viewpoints of handleability, safety, and manufacturing cost. The content of the oxidizable metal is preferably 25 to 80% by mass in the exothermic composition.

  Examples of the activated carbon include coconut shell charcoal, charcoal, calendar bituminous coal, peat, and lignite. The content of activated carbon is preferably 4 to 35% by mass in the exothermic composition.

  The electrolyte is preferably one that promotes oxidation of the metal to be oxidized by electrolyzing with water, and examples thereof include alkali metal, alkaline earth metal, or heavy metal sulfate, carbonate, chloride, or hydroxide, Of these, various chlorides such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride, and iron chloride (first and second) are preferably used in terms of excellent conductivity, chemical stability, and production cost. The content of the electrolyte is preferably 1 to 15% by mass in the exothermic composition.

  In the exothermic composition, the content of water is preferably 15 to 30% by mass from the viewpoint of satisfactorily oxidizing the metal to be oxidized and the point of sufficiently exerting the effects of the present invention.

  The heat generating part 10 may be made of a powdery or sheet-like heat generating composition. Of the exothermic sheet and exothermic powder, it is preferable to use an exothermic sheet from the standpoint that water vapor 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 made by wet papermaking, those obtained by sandwiching exothermic powder with paper, and those obtained by applying exothermic powder dispersed in water to paper etc. It is done.

The bag body 11 is at least partly breathable, and at least part of the bag body 11 is composed of a sheet having a basis weight of 20 to 90 g / m ^2. A sheet having a basis weight of 20 to 90 g / m ² is preferable. The basis weight is 20 g / m from the viewpoint of heat retention, the prevention of condensation during storage, the viewpoint that the required fragrance strength can be maintained for a long time, and the prevention of seeing through the interior. ² or more, preferably 25 g / m ² or more, more preferably 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 at the time of use by reducing the thickness and weight of the heating tool and from the viewpoint of increasing the rise of the scent at the time of 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, and a knitted fabric and a breathable sheet. Laminated laminated sheets and the like can be mentioned.

  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 stretchability is preferably a non-woven fabric containing elastic fibers (for example, polyurethane or polyester) or three-dimensional crimped fibers as constituent fibers, and for example, an air-through non-woven fabric, a spunbonded non-woven fabric, a needle punched non-woven fabric or the like is preferable.

  Specific non-woven fabric materials include polyesters such as PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), polyolefins such as ethylene propylene copolymer, polyamide, polyacryl, and the like; cellulose, silk Natural fibers including cotton, wool, and the like; or composite fibers thereof.

  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 to 200 μm. 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 breathable sheet may be any sheet that does not substantially transmit oxygen. For example, polyolefins such as polyethylene and polybutadiene, polyvinyl chloride, polyvinylidene chloride, polyester, polyether, polysulfone, polyamide, and the like are used. be able to. The thickness is preferably 5 to 200 μm.

  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 the fragrance of the heating tool 1 contains damasenone. The content of damasenone in the fragrance composition is 0.2 to 0.7% by mass. By setting the lower limit to 0.2% by mass or more, it is possible to effectively suppress the change in fragrance of the entire fragrance composition while maintaining the strength of the fragrance during storage. In addition, by setting the upper limit to 0.7% by mass or less, it is possible to effectively suppress a change in scent of damasenone itself during storage. Especially, it is preferable that it is the range of 0.4-0.6 mass%.

  It is preferable that the mass ratio of activated carbon in the heating part 10 (activated carbon / damasenone) is 700 to 3000 with respect to the mass of damasenone contained in the fragrance composition. By setting the lower limit to 700 or more, qualitative scent changes during storage can be suppressed. Further, by setting the upper limit to 3000 or less, it is possible to suppress a change in qualitative scent due to a change in scent of damasenone itself while suppressing a change in quantitative scent during storage. The mass ratio of the activated carbon / damacenone is particularly preferably in the range of 720 to 2000, and more preferably in the range of 740 to 1500.

  The fragrance composition used for the fragrance of the heating tool 1 can contain one or more rose-like fragrances other than damasenone. Thereby, the heating tool 1 can be fragranced like rose. The content of the rose-like fragrance other than damasenone is preferably 70 to 80% by mass with respect to the entire fragrance composition.

  Specific examples of the rose-like fragrance include linear monoterpene alcohols, sesquiterpene alcohols, monoterpene alcohols or acetic esters of alicyclic alcohols, methyl dihydrojasmonate, ionone, damascone, terpene hydrocarbons, An aromatic alcohol is mentioned.

  Examples of chain monoterpene alcohols include geraniol, citronellol, linalool, dihydrolinalool, ethyl linalool, nerol, and myrsenol.

  As the sesquiterpene alcohols, both chain-like and cyclic ones can be used. As the chain sesquiterpene alcohols, for example, farnesol or nerolidol can be used. As the cyclic sesquiterpene alcohols, for example, santalol, cedrol, vetiverol (mixture), patchouli alcohol and the like can be used.

  Examples of acetic esters of monoterpene alcohol include linalyl acetate, geranyl acetate, citronellyl acetate, ethyl linalyl acetate, lavandulyl acetate, and menthanyl acetate. Examples of acetic esters of alicyclic alcohols include o-tert-butylcyclohexyl acetate and p-tert-butylcyclohexyl acetate.

  Examples of the terpene hydrocarbon include chain-like myrcene and farnesene; and cyclic pinene, limonene, camphene, ferrandrene, tarpinene, terpinolene, p-cymene, cedrene, caryophyllene and the like.

  Moreover, as aromatic alcohol, various compounds used as an aromatic component, for example, benzyl alcohol, phenylethyl alcohol, pamphurfur (2-methyl-4-phenylpentanol), dimethylbenzyl carbinol, phenylhexanol (3-methyl). -5-phenylpentanol) and the like.

  Moreover, the fragrance | flavor composition used for the fragrance | flavor of the heating tool 1 can also contain a rose-like fragrance | flavor as essential oil. For example, rose oil, which is a kind of natural essential oil, can be used.

  When the fragrance composition used for the fragrance of the heating tool 1 is prepared, the fragrance components described in, for example, “Synthetic fragrance chemistry and product knowledge” (Genji Intomoto, Chemical Industries Daily Co., Ltd.) It can also mix | blend in the range which does not disturb. Specifically, hexylcinnamic aldehyde, 2-methyl-3- (4-tert-butylphenyl) -propanal, 4- (4-hydroxy-4-methylpentyl) -3-cyclohexene-1-carboxaldehyde, Aldehydes such as vanillin; phenols such as anethole and eugenol; lactones such as γ-nonalactone and γ-undecalactone; amyl salicylate, benzyl benzoate, benzyl salicylate, cis-3-hexenyl benzoate, cis-3-hexenyl salicylate And esters such as hexyl benzoate, hexyl salicylate, phenethyl phenyl acetate, and nonyl acetate.

  The fragrance composition used for the fragrance of the heating tool 1 may contain a solvent as long as the effect of the present invention is not hindered in addition to damasenone. Examples of the solvent include dipropylene glycol, ethyl diglycol, isopropyl myristate, benzyl benzoate, triethyl citrate, and diethyl phthalate. It is preferable that content of a solvent is 1-30 mass% with respect to the whole fragrance | flavor composition.

  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 depending on the kind of the fragrance composition, 5 to 60 mg is preferable and 7 to 45 mg is more preferable as a general range with respect to 1 g of the solid content of the heat generating portion 10.

  As a method for aromatizing the heating tool 1, when the fragrance composition is a liquid, there is a method in which the fragrance composition is directly added to the heating tool 1 by spraying or the like. Further, 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 fragrance composition may be directly applied to the inner surface of the bag body 11, or the sheet is made of the fragrance composition. The scented sheet 12 formed by scenting the material may be disposed between them, or a powdery fragrance or paste-like scented product obtained by scenting a powder or oily carrier is made into a sheet. It may be given in between. When the scented sheet 12 is used, specifically, the scented sheet 12 may be disposed so as to be adjacent to the inner side surface of the bag body 11, or the scented sheet 12 may be applied to the inner side surface of the bag body 11 with an adhesive. You may adhere and apply. Here, “arranged so as to be adjacent” in this specification means a state that is close but not necessarily in contact, that is, a state that may or may not be in contact.

FIG. 1 shows an example in which the heating tool 1 is scented by a scented sheet 12 impregnated with a fragrance composition. The perfume sheet 12 is disposed so as to be adjacent to the inner surface on one side of the bag body 11. Particularly, the first bag body sheet 11a and the second bag body sheet 11b are arranged on the second bag body sheet 11b side. When the 1st bag body sheet 11a shall be located in the side close | similar to a wearer's skin, and the 2nd bag body sheet | seat 11b shall be located in the side far from a wearer's skin, the perfume sheet | seat 12 of a wearer's skin is used. By disposing on the inner surface on the second bag sheet 11b side located on the side far from the skin, it is possible to improve the lightness during use and to impart a sufficient thermal effect to the wearer's skin.
The basis weight of the first bag sheet 11a and the second bag sheet 11b is the second bag sheet on the side far from the skin from the point that the effects of the present invention are fully exhibited, and the warmth and feeling during use. 11b is preferably the same as or smaller than the first bag sheet 11a on the side close to the skin.
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.

  The perfumed sheet 12 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 properties 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.

  Moreover, the heating tool 1 may have a holding means. That is, the heating tool 1 can have a holding means such as an ear hook or a holding tool so as to be able to contact the human body, or can be configured to be attached to a human body or clothing. In this case, an adhesive layer is formed on the outer surface of the first bag sheet 11a of the bag body 11 and directly adhered to the human body, or an adhesive layer is formed on the outer surface of the second bag sheet 11b of the bag body 11. It can be made to contact | abut to a human body in the state stuck to clothing, such as underwear.

  As the material of the pressure-sensitive adhesive used for the heating tool 1, acrylic, urethane, rubber, silicon, polyisobutylene, styrene-isobutylene-styrene (SIS), styrene-isobutylene, polyacrylic acid water-soluble Can be used.

The heating tool 1 is preferably hermetically sealed with a packaging material (not shown) having oxygen barrier properties before use. 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. Further, it is preferable that the oxygen permeability coefficient (ASTM D3985) of the packaging material is 10 cm ³ · mm / (m ² · day · MPa) or less, particularly 2 cm ³ · mm / (m ² · day · MPa) or less. .

It continues and demonstrates the effect of the heat generating tool 1 of this embodiment. According to the heating tool 1, the fragrance composition is provided with the bag 11 at least partly composed of a sheet having a basis weight of 20 to 90 g / m ² , and perfume with a fragrance composition containing 0.2 to 0.7 mass% of damasenone. Therefore, it is possible to achieve both lightness and good fragrance during use. Therefore, it is possible to enhance the user's relaxation effect. According to this heating tool 1, fragrance standing at the time of use becomes sufficient, and changes in the quality and strength of the scent during storage can be effectively suppressed. Moreover, the rise of the fragrance at the time of use is quick, and the necessary fragrance intensity can be maintained for a long time. Moreover, in this heat generating tool 1, there is no fear of deteriorating the heat generation characteristics.

  As a more specific example of the heating tool 1, a steam heating tool 100 will be described below. FIG. 2 shows a plan view of the steam heating tool 100. This steam heating device 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 scented with a fragrance composition containing damasenone. Specifically, the steam heating tool 100 generates steam heat and a rose-like fragrance during use.

  The steam heating tool 100 has a main body 101 and an ear hook 102. 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 put on the wearer's ear and the main body 101 is covered with both eyes of the wearer. Under this wearing condition, steam heat generated from the steam heating device 100 is applied to the wearer's eyes, and aroma components are 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 tool 100. In the figure, the ear hooking portion 102 is disposed on the main body portion 101. 4 is a cross-sectional view of the steam heating tool 100 along the X direction. The main body 101 of the steam heating tool 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 fragrance composition used for the flavoring of the steam heating tool 100 is the same as the fragrance composition that can be used in the heating tool 1 of FIG. That is, it contains 0.2 to 0.7% by mass of damasenone based on the whole fragrance composition.

  In the steam heating tool 100, the bag body 110 includes 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 at least partially a sheet having a basis weight of 20 to 90 g / m ² from the viewpoint of preventing the inside from being seen through and from the viewpoint of heat insulation, and in particular, the second bag body. The entire sheet 110b is preferably a sheet having a basis weight of 20 to 90 g / m ² .

Moreover, the 1st bag body sheet | seat 110a is good in the basis weight 20-90 g / m < ² > at least partially for the same reason as the 2nd bag body sheet | seat 110b. In particular, the entire first bag sheet 110a is preferably a sheet having a basis weight of 20 to 90 g / m ² .

  The basis weight is the first bag sheet on the side where the second bag sheet 110b on the side far from the skin is close to the skin from the viewpoint of sufficiently exhibiting the warmth and use feeling at the time of heat insulation and use, and the effect of the present invention. It is preferably the same as or smaller than 110a. 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 first bag sheet 110a and the second bag sheet 110b are preferably stretchable sheets having stretchability in at least one direction. When the 1st bag body sheet 110a and the 2nd bag body sheet 110b have a stretching property only in one direction, it is preferable to correspond with the longitudinal direction (X direction) or the width direction (Y direction) of the main-body part 101. FIG. When the first bag sheet 110a and the second bag sheet 110b have elasticity in two directions orthogonal to each other, it is preferable that the directions coincide with the longitudinal direction and the width direction of the main body 101, respectively. Here, the stretchable sheet includes a sheet having either or both of elongation and stretch recovery properties (shrinkability). For example, at least one of the first bag body sheet 110a and the second bag body sheet 110b only needs to be extensible in one direction, and one of the first bag body sheet 110a and the second bag body sheet 110b is It may have extensibility, and the other may have extension and extension recovery.

  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 notches 113a and 113b have different degrees of cut. The notch 113a is located between or near the wearer's eyebrows when the steam heating tool 100 is attached. The notch 113b is located on the wearer's nasal bridge when the steam heating tool 100 is attached. 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 heat generating portion 121 is housed in a housing 122 having at least a part of air permeability to form the heat generating 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 container 122 is in a non-joined state at a portion inside the joined peripheral edge. Thus, a single space for accommodating the heat generating portion 121 is formed in the container 122. The fragrance composition is preferably applied between the heat generating portion 121 and the bag body 110, more preferably applied between the heat generating body 120 and the bag body 110, and in particular, on the outer surface of the container 122. It is particularly preferred if it has been applied.

In the steam heating tool 100, the fragrance composition is preferably applied between the heat generating part 121 and the bag body 110, but in particular, it is applied between the heat generating element 120 and the bag body 110. Among these, it is preferable that the outer surface of the container 122 be applied. 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 between the heating element 120 and the bag body 110, for example, a fragrance sheet 130 formed by fragranceing the sheet material with the fragrance composition may be disposed between the heating element 120 and the bag body 110. In addition, a powdery fragrance or a paste-like fragrance obtained by fragranced on a powder or oily carrier may be applied in the form of a sheet.
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 fragrance | flavor sheet | seat, and the fragrance | flavor composition containing a damasenone 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. In addition, as a material of the perfume sheet | seat 130, the thing similar to the perfume sheet | seat 12 of FIG. 1 can be used.
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. By disposing on the outer surface of the second container sheet 122b located on the side far from the outer surface or applying to the outer surface, it is possible to improve the lightness during use and to impart a sufficient thermal effect to the wearer's skin. Is possible.

In the present invention, the air permeability of the second container sheet 122b can be made larger than the air permeability of the first container sheet 122a. Thereby, it becomes possible to further suppress the influence of the activated carbon in the heat generating part on the fragrance composition. That is, the air permeability of the second container sheet 122b is preferably 2 times or more, more preferably 5 times or more, particularly 10 times or more than the air permeability of the first container sheet 122a. Here, 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. Therefore, a high air permeability means that it takes time to pass air, that is, the air permeability is low. Conversely, a low air permeability means high air permeability. Thus, the magnitude of the air permeability and the level of air permeability are opposite to each other.

  In addition, the 1st container sheet | seat 122a may have air permeability so that permeation | transmission of air and water vapor | steam is possible. On the other hand, the second container sheet 122b may be less breathable or non-breathable than the first container sheet 122a. When the second container sheet 122b is difficult to breathe, the air permeability of the second container sheet 122b is preferably 5000 seconds or more, more preferably 10,000 seconds or more, and 20000 seconds or more. More preferably, it is more preferably 30000 seconds or more. On the other hand, the air permeability of the first container sheet 122a is preferably 1000 to 50000 seconds regardless of whether the second container sheet 122b is non-breathable or non-breathable.

  As a specific material of the first container sheet 122a and the second container sheet 122b, a melt blown nonwoven fabric or a moisture permeable film is preferably used in terms of controlling air permeability and preventing powder leakage. 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 may be sufficient. The 1st container sheet | seat 122a and the 2nd container sheet | seat 122b may be comprised from the sheet material of 1 sheet, and may be comprised from the laminated body of the some sheet material.

  The heat generating part 121 is made of a heat generating composition similar to the heat generating part 10 of FIG. That is, the heat generating part 121 includes at least an oxidizable metal and activated carbon, but preferably further includes an electrolyte and water.

  The heat generating part 121 is made of, for example, a heat generating sheet or a heat generating powder. Here, as the heat generating part 121, a sheet formed by coating a sheet or the like containing a fiber called a fiber sheet and a powder containing a heat generating powder called a coating sheet dispersed in water or the like is used. An example will be described. Of the heat generating sheet, the fiber sheet is preferably in a water-containing state including an oxidizable metal, activated carbon, a fibrous material, an electrolyte, and water. 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 Japanese Patent Application Laid-Open No. 2003-102761 related to the previous application of the present applicant, 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. 4, as an example, a heat generating sheet having a two-layer structure of a molded sheet 121a and a water retaining sheet 121b is shown. The molded sheet 121a can contain an oxidizable metal and activated carbon, and the content of the molded sheet 121a is 60 to 90 mass% for the oxidizable metal and 5 to 25 mass% for the activated carbon. Can do. Further, the water retaining sheet 121b is preferably paper or paper sandwiched with a water-absorbing polymer. The molded sheet 121a and the water retaining sheet 121b contain an aqueous electrolyte solution, and it is preferable to use an electrolyte aqueous solution containing 1 to 15% by mass of electrolyte, and the electrolyte aqueous solution is used with respect to 100 parts by mass of the molded sheet. It is preferable to make it contain in the quantity of 30-80 mass parts and a heat_generation | fever sheet | seat (two-layer structure of the shaping | molding sheet 121a and the water retention sheet | seat 121b). Moreover, it is preferable to arrange the water retaining sheet 121b on the second bag sheet 110b side of the molded sheet 121a. Since the distance between the fragrance composition and the heat generating portion is increased by the interposition of the water retention sheet 121b, the influence of the activated carbon can be physically suppressed, which is preferable.

  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 tool 100 is disposed on the first bag sheet 110 a in the main body portion 101 as shown in FIGS. 3 and 4. When using the steam heating tool 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 tool 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. As the packaging material, the same packaging material as that of the heating tool 1 described above can be used.

The form of the steam heating device 100 when wrapped in the packaging material may be folded in two along the vertical center line L with the first bag sheet 110a of the bag body 11 located on the side close to the wearer's skin inside. It is preferable in terms of hygiene. On the other hand, when packaged in this manner, the two heating elements are close to each other as compared with the embodiment shown in FIGS. Moreover, in the steam heating tool 100, the bag body 110 in which at least one part is comprised with the thin sheet | seat whose basic weight is 20-90 g / m < ² > is used. Therefore, there is a concern that the fragrance composition on one side easily moves to the heating element on the other side. However, since the steam heating tool 100 is scented by the fragrance composition containing damasenone, even when packaged and stored in such a manner, the decrease in strength of the scent during storage and alteration of the scent, It can be significantly suppressed. Moreover, since the distance between the fragrance composition and the heat generating portion is increased by interposing the ear hooking portion 102, the influence of the activated carbon can be physically suppressed, which is preferable. The ear hook 102 can be made of the same material as the bag 11 of the heating tool 1 described above.

In such a steam heating tool 100, the same effect as that of the heating tool 1 can be obtained. That is, according to the steam heating tool 100, the fragrance | flavor composition which has the bag body 110 provided with the sheet | seat with a basic weight of 20-90 g / m < ² > at least, and contains 0.2-0.7 mass% of damasenone. Therefore, it is possible to achieve both lightness and good fragrance during use. Moreover, according to the steam heating tool 100, steam can be generated together with warm heat and a rose-like fragrance, so that the user's relaxation effect can be further enhanced. According to this steam heating tool 100, the scenting at the time of use becomes sufficient, and the change of the scent during storage can be effectively suppressed. Moreover, the rise of the fragrance at the time of use is quick, and the necessary fragrance intensity can be maintained for a long time. Moreover, in this steam heating tool 100, there is no concern of deteriorating the heat generation characteristics.

  FIG. 5 shows a steam heating tool 200 as another example of the steam heating tool 100. In the steam heating tool 100, an example in which the fragrance composition is applied between the heating element and the bag, particularly on the outer side surface of the container, the steam heating tool 200 is provided between the heating element and the bag. In particular, an example in which a fragrance composition is applied to a sheet material separately provided on the outside of the container is shown. Specifically, in the steam heating tool 200 shown in FIG. 5, a perfume sheet 230 is disposed between the bag body 110 and the heat generator 220. In particular, it is preferable that the perfume sheet 230 is disposed adjacent to the second bag sheet 110b and the heating element 220 in the bag body 110. A perfume composition containing damasenone is applied to the perfume sheet 230, and the perfume composition contains 0.2 to 0.7% by mass of damasenone based on the whole perfume composition. .

  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 is the same mode as the heat generating part 121. 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.

  Note that the steam heating tool 100 and the steam heating tool 200 have been described with reference to an eye mask used in contact with both eyes of the wearer, but instead of this, the wearer's body, for example, the shoulder, It may be used by sticking to the waist, elbow, knee or the like. Or you may affix and use on clothing. When the steam heating tool 100 is attached to the wearer's body, a fixing means such as an adhesive may be provided in place of the ear hook 102. That is, in the case of being attached to the wearer's body, a fixing means such as an adhesive may be provided on the surface of the first bag sheet 110a in the bag 110, and used by being attached to the wearer's clothing. In that case, a fixing means such as an adhesive may be provided on the surface of the second bag sheet 110b in the bag body 110.

  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.

  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.

Example 1-7, Comparative Example 1-4
The steam heating tool having the structure shown in FIGS. 2 to 4 was produced by the following procedures (1) to (3). FIG. 4 shows an example of the heat generating portion 121 composed of a molded sheet and a water retaining sheet. In this embodiment, the water retaining sheet is not provided separately from the molded sheet, and the function of the water retaining sheet is provided on the molded sheet. A heated exothermic sheet was produced.
(1) Production of sheet-like heat generating part 121 <Raw material composition combination>
・ Oxidizable metal: Iron powder, manufactured by Dowa Mining Co., Ltd., trade name “RKH”: 83%
-Fibrous material: Pulp fiber (Fletcher Challenge Canada, trade name NBKP “Mackenzi (adjusted to CSF 200 ml)”): 9%
-Activated carbon: average particle size 45 μm (manufactured by Nippon Enviro Chemical Co., Ltd., trade name “Carborafyn”): 8%

  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. And 0.78 parts of sodium carboxymethylcellulose (Daiichi Kogyo Seiyaku Co., Ltd., trade name “HE1500F”) as an anionic flocculant was added. The slurry was added until the concentration reached 12%.

<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 121a thus obtained was measured using a thermogravimetric measuring apparatus (TG / DTA 6200, 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 121>
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 electrolyte solution was infiltrated into the entire molded sheet 121a using the capillary phenomenon to obtain a rectangular sheet-shaped heat generating portion 121 (basis weight: 460 g / m ² , size 49 mm × 49 mm).

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

(2) Production of heating element 120 The first container sheet 122a in the container 122 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 122b was comprised from the moisture-impermeable film made from polyethylene. Water absorbent paper (basis weight: 35 g / m ² ) is laminated on one surface of the second container sheet 122b, and the first container sheet 122a and the second container are placed with one sheet of the sheet-like heat generating part 121 interposed therebetween. The body sheet 122b was overlapped so that the water-absorbing paper faced outward, and the sheets were joined at the peripheral edge portion to obtain a rectangular heating element 120. The water-absorbing paper was impregnated with a fragrance composition containing a rose-like fragrance shown in Table 1 below. The impregnation amount of the fragrance composition was 18 mg with respect to 1.05 g of the solid content of the heat generating part.

(3) Production of Steam Heating Tool 100 As Example 1-7 and Comparative Example 1-3, as the first bag sheet 110a and the second bag sheet 110b, the first bag sheet 110a is made of a polypropylene nonwoven fabric (needle punch). Method, basis weight 80 g / m ² ), the second bag sheet 110b uses a polyethylene terephthalate nonwoven fabric (air-through method, basis weight 30 g / m ² ). In Comparative Example 4, the first bag sheet 110a and the second bag Both body sheets 110b are made of polyethylene terephthalate nonwoven fabric (needle punch method, basis weight 100 g / m ² , thickness 0.72 mm; Kureha Tech Co., Ltd.), and as shown in FIG. 2, both bag sheets 110a, 110b Between the two heating elements 120 obtained above, the first bag body sheet 110a and the second bag body sheet 110b are disposed in the vicinity of the peripheral edge and the vertical center line. They were joined. Furthermore, as shown in FIG. 2, a non-woven fabric ear hook 102 was attached to the outer surface of the first bag sheet 110a to obtain the intended steam heating tool 100. Each of the above operations was performed in an atmosphere without oxygen. The 1st bag body sheet | seat 110a and the 2nd bag body sheet | seat 110b can be expanded-contracted to the X direction in FIG. 2, and the load at the time of 50% expansion | extension was 0.8 N / 5cm.

  After flavoring each fragrance component shown in Table 1 by the above-described method, the obtained steam heating tool 100 is folded in two along the vertical center line L so that the first bag sheet 110a is inside, It was hermetically sealed in a barrier bag (laminated film of PET 13 μm / aluminum 7 μm / polypropylene 40 μm) and left overnight to stabilize the fragrance components. Open the individual packaging container (pillow) for the steam heating tool left overnight (this is called the steam heating tool immediately after perfume) and the steam heating tool stored for 7 days in a constant temperature bath at 50 ° C. The heat generation of the steam heating tool and the generation of water vapor were started, and the fragrance of the fragrance composition 5 minutes after opening was evaluated according to the following criteria. The results are shown in Table 2 below. Note that the basis weight of the second bag sheet 110b, the mass of activated carbon obtained by separating the steam heating tool 100 shown in FIG. 2 along the longitudinal center line L, the mass of damasenone, and the mass ratio (activated carbon / Table 1 shows damassenone).

[Evaluation of changes in scent intensity and rose scent during storage]
Two kinds 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 thermostatic bath at 50 ° C. for 7 days. Open the pillow, smell the scent 5 minutes later, let the "scent intensity" be evaluated in 5 steps from 1 to 5, and "Rose incense characteristics" in 5 steps from 1 to 5 The results obtained by averaging were shown in Table 2.
<Evaluation criteria for fragrance intensity: 5-level absolute evaluation>
1: Insufficient strength 2: Insufficient strength 3: Insufficient strength 4: Intensity 5: Sufficient strength <Rose fragrance evaluation criteria: 5-level absolute evaluation>
1: The characteristic of the rose fragrance is quite poor 2: The characteristic of the rose fragrance is not present 3: The characteristic of the rose fragrance has reached the required level 4: The characteristic of the rose fragrance 5: The characteristic of the rose fragrance is sufficient

  Furthermore, about Example 1 and the comparative example 1, the change of the intensity | strength of the fragrance at the time of use was evaluated on the following references | standards in the state equipped with the steam heating tool. The results are shown in Table 3 below.

[Evaluation of scent strength during use]
The steam heating tool (Example 1, Comparative Example 1) that was stored in a 50 ° C. constant temperature bath for 7 days was evaluated by two odor specialist panels. Open the pillow, put it on with the first bag sheet 110a in contact with your eyes, and perform a five-step absolute evaluation of "scent intensity" from 1 to 5 every 5 minutes after opening the pillow. The averaged results are shown in Table 3.
<Evaluation criteria for fragrance intensity: 5-level absolute evaluation>
1: Not enough strength 2: Insufficient strength 3: Required strength 4: Strong strength 5: Sufficient strength

  As shown in Table 2, the steam heating device of the example has a good scent immediately after production (immediately after perfume), both quantitatively and qualitatively even after being stored in a thermostat at 50 ° C. for 7 days. It was presenting. Moreover, as shown in Table 3, it was shown that the steam heating tool of an Example has a quick start of fragrance, and can maintain required fragrance intensity for a long time. In addition, the steam heating device immediately after the fragrance of each Example and after storage for 7 days in a thermostatic bath at 50 ° C. may have no difference in temperature characteristics as compared with the steam heating device that does not contain a fragrance composition. It has been confirmed.

DESCRIPTION OF SYMBOLS 1 Heating tool 10 Heat generating part 11 Bag 11a 1st bag sheet 11b 2nd bag sheet 12 Perfume sheet 100 Steam | heater heating tool 101 Main body part 102 Ear hook part 103a Fixing part 103b Fixing part 110 Bag body 110a 1st bag body Sheet 110b Second bag sheet 113a Notch part 113b Notch part 120 Heat generating element 121 Heat generating part 122 Container 122a First container sheet 122b Second container sheet 121a Molded sheet 121b Water retaining sheet 130 Perfumed sheet 200 Steam heating tool 203 Fixed Part 220 heating element 221 heating part 222 container 222a first container sheet 222b second container sheet 230 perfume sheet

Claims (8)

A heating part comprising an oxidizable metal and activated carbon;
A bag body that is at least partially breathable and contains the heat generating portion;
A heating tool having
The heating tool is perfumed with a fragrance composition containing damasenone,
At least a part of the bag is composed of a sheet having a basis weight of 20 to 90 g / m ² ,
Content of the said damasenone is a heating tool which is 0.2-0.7 mass% with respect to the said fragrance | flavor composition whole quantity.   The heating tool according to claim 1, wherein a mass ratio of the activated carbon in the heating portion to a mass of damasenone contained in the fragrance composition is 700 to 2000.   The heating tool according to claim 1 or 2, wherein the fragrance composition is applied between the heating portion and the bag.   The heat generating part is housed in a housing body that is at least partially breathable to form a heat generating body, and the fragrance composition is applied between the heat generating body and the bag body. 3. The heating tool according to 3.   The heating tool according to claim 4, wherein the fragrance composition is applied to an outer surface of the container.   The heating tool according to any one of claims 1 to 4, wherein the fragrance composition is applied by a fragrance sheet.   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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