JP4786349B2 - Thermal stimulation device - Google Patents

Description

  The present invention relates to a tool for applying a thermal stimulus to a living body. More specifically, the present invention relates to a thermal stimulation device using a thermal body containing a heat generating composition that generates heat upon contact with oxygen in the air, and instantaneously or intermittently heats a desired part of a living body. It is related with the tool for giving a stimulus.

  Applying a hand to a part with pain or an unpleasant symptom, and further rubbing or pushing the part are actions naturally performed by humans. In fact, this often improves the symptoms, so in Japan, for example, acupuncture or acupuncture, and in Europe and the United States, a treatment called massage, touch care or touch therapy is performed. Or, these treatments involving touching with a finger or the like may be collectively referred to as “touch therapy”). Such effects of touch therapy include the adjustment of various body functions such as the endocrine system by touching in addition to the effect of improving blood flow and the like by massage.

  In addition, a method for locally treating a living body and treating an affected part by locally applying heat is also known. For example, there are rice cakes and hot compresses. By applying heat, effects such as promotion of metabolism, improvement of blood circulation by vasodilation, activation of leukocytes and lymphocytes, generation of analgesic substances, and remission of inflammation of muscles and joints are expected.

  Conventionally, the following devices have been devised as a heating device that can be used for acupressure or massage. Patent Document 1 describes a simple warm massage device having two bag-shaped parts, a part for storing a disposable body warmer and the like and a part for inserting a finger. Patent Document 2 describes a glove-type heat insulator in which a heat insulating material is attached to a fingertip and a palm portion on the palm side of a glove in a shape like a meat ball of a cat's hand. The heat insulating material used in this heat insulating tool needs to be used after being warmed in advance.

  The inventions described in these documents are merely ones that can be used to fix an existing thermal (heat-retaining) material to the hand, and the increase in the effect of massage or the like or practical convenience is not considered. These documents do not describe details of materials, configurations, etc. at all.

  In addition, many warming tools such as disposable warmers that are used by being fixed to various parts of the body, particularly the palm, have been devised (for example, Patent Document 3). However, these are used for the purpose of giving heat to the fixed part. Therefore, they are used for touch therapy, that is, for the purpose of giving heat and tactile stimulation to parts other than the part where the part is fixed. Not suitable for use at all. Further, since the heat is continuously applied to the fixed portion, the heat generation temperature is relatively low due to the risk of burns or low-temperature burns.

JP 2001-46453 JP2002-694 Registered Utility Model Publication No. 3013404

  An object of this invention is to provide the thermal stimulation tool suitable for the treatment applied while moving like a touch therapy. An object of the present invention is to provide a thermal stimulation device that is highly effective in both thermal stimulation and tactile stimulation, simple, safe, and economical.

In order to solve the above problems, the present inventors have completed the present invention as a result of intensive studies. That is, the present invention
[1] A thermal stimulation device for applying thermal stimulation derived from a thermal body by intermittent contact with a living body,
a) The heating element is composed of a bag body, at least a part of which is made of a permeable packaging material, and a heat generating composition contained in the bag body that generates heat by reacting with oxygen. And
b) The heating element has a palm-surface contact surface that is substantially impermeable to water vapor (surface A) and a stimulated-portion contact surface that is water vapor-permeable (surface B).
c) The surface temperature on the stimulated part contact surface (B surface) side is higher than the surface temperature on the palm contact surface (A surface) side after 5 minutes from the rise of heat generation,
A thermal stimulation tool characterized by:
[2] A thermal stimulation device that applies thermal stimulation derived from a thermal body by intermittently contacting the living body,
a) The heating element is composed of a bag body, at least a part of which is made of a permeable packaging material, and a heat generating composition contained in the bag body that generates heat by reacting with oxygen. And
b) The thermal stimulation tool has a member (holding member) that is held by the palm part separately from the thermal body,
c) The holding member has a substantially water vapor impermeable palm contact surface (C surface) and a water vapor permeable stimulated portion contact surface (D surface), and the palm contact surface (C). Surface) and the stimulated part contact surface (D surface) is configured to accommodate the thermal element,
d) The surface temperature on the stimulated part contact surface (D surface) side is higher than the surface temperature on the palm part contact surface (C surface) side after 5 minutes from the rise of heat generation,
A thermal stimulation tool characterized by:
[3] The thermal stimulation device according to [1] or [2], wherein the maximum heat flow rate on the contact surface (B surface) of the stimulated part 5 minutes after the rise of heat generation is 600 W / m ² or more;
[4] The surface temperature of the stimulated part contact surface (B surface or D surface) 5 minutes after the rise of heat generation is 50 to 80 ° C., according to any one of the above [1] to [3]. Thermal stimulation tool;
[5] The water vapor permeability of the air-permeable packaging material constituting at least a part of the bag body is 1500 to 8000 g / m ² · day, according to any one of the above [1] to [4]. Thermal stimulation tool;
[6] The thermal stimulation device according to any one of [1] to [5], wherein the thermal body expands at least temporarily during heat generation;
[7] The thermal stimulation device according to any one of [1] to [6] above, which contains at least one selected from Chinese herbal extracts, oils, fragrances, and dried plants.
[8] The thermal stimulation device according to any one of [1] to [7], which is housed and sealed in a gas barrier outer bag;
I will provide a.

  According to the thermal stimulation device of the present invention, a touch therapy type thermal stimulation technique can be performed anytime and anywhere without any special device or the like, and a heat generating composition that generates heat by reacting with oxygen ( (Hereinafter, it may be simply referred to as “exothermic composition”), and the thermal energy of the hand (surgical part) can be enhanced easily, inexpensively, and safely. In addition, the effect of thermal stimulation can be increased.

  In addition, water vapor is generated by an oxidation reaction when the exothermic composition generates heat when it comes into contact with oxygen in the air, so this water vapor is used to increase the comfort in addition to the effects of thermal and tactile stimulation of touch therapy. can do. That is, when a breathable packaging material is used on the stimulated part contact surface side, the water vapor generated by the oxidation reaction when the exothermic composition is in contact with oxygen in the air and generates heat is released appropriately. A further heat transfer effect can be obtained and a moisturizing effect can be enhanced.

  In addition, the thermal stimulation device of the present invention configured to swell further improves the ability to follow a living body during use, and for example, follows the uneven portions such as the neck, shoulders, waist, and face, and easily transmits the thermal energy.

  Furthermore, according to the device for stimulating heat of the present invention, heat generated by oxidation of the exothermic composition by oxygen in the air is used, and heat stimulation similar to that of a bowl using fire is performed without using fire. It can be intermittently given to the treatment site several times. Moreover, since the thermal stimulation device of the present invention can give thermal stimulation on a surface having a considerably large area compared to a bowl, it has specialized knowledge about a living pot like an acupuncturist. Even if it is not a person, the same effect as a bowl can be obtained easily.

  The heating element used in the thermal stimulation device of the present invention is configured such that at least a part of the heating element is housed in a bag body made of a packaging material having air permeability. Any known exothermic composition may be used. Typically, it is a mixture containing an oxidizable metal powder, an inorganic electrolyte, a water retention agent, water, and the like. In addition, activated carbon or the like may be added. Examples of those commonly used as these components are as follows. Examples of the oxidizable metal powder include iron powder and zinc powder. Examples of the inorganic electrolyte include sodium chloride, potassium chloride, ferric chloride, magnesium chloride and the like. Examples of the activated carbon include coconut shell activated carbon. Examples of the water retention agent include wood flour, vermiculite, and a polymer water-absorbing agent.

  The mixing ratio of each component of the exothermic composition is appropriately determined by those skilled in the art.

  The exothermic composition may be accommodated by dividing the bag into two or more air chambers. For example, when two or more air chambers are arranged side by side on the plane of the palm part, flexible movement becomes possible, and followability to a living body is further improved. Further, when two or more air chambers are configured to overlap vertically with the plane of the palm part, different heat generating compositions are sealed in each air chamber, so that the palm part contact surface of the thermal stimulation tool, which will be described later, and the stimulus are stimulated. The temperature difference with the part contact surface can be made easily.

  As the air-permeable packaging material constituting at least a part of the bag body containing the composition, a porous film, a non-porous film provided with through holes, or the like can be used alone or in a laminated manner. . Furthermore, you may laminate | stack with a nonwoven fabric, a woven fabric, paper, etc. The other part of the bag may be made of a non-breathable packaging material. Examples of non-breathable packaging materials include single layers or laminates of non-breathable films such as polyethylene films and polypropylene films, or laminates of these with nonwoven fabrics, woven fabrics, papers, and the like.

The thermal stimulation device of the present invention has at least two surfaces, ie, a substantially water vapor impermeable palm contact surface (A surface or C surface) and a water vapor permeable stimulated portion contact surface (B surface or D surface). Have Regarding the present invention, the palm part contact surface (A surface or C surface) is a surface in contact with the palm of the practitioner in use, and the stimulated part contact surface (B surface or D surface) is the palm part contact surface. It is a surface that is located on the opposite side and that contacts a site (site to receive treatment) to which thermal and tactile stimulation should be applied in the state of use. Here, “substantially water vapor impermeable” means that the moisture permeability (measured value according to JIS K7129) is 100 g / m ² · day or less. In the present invention, when the palm part contact surface and the stimulated part contact surface are provided on the heating element for convenience, they are provided on the A surface and the B surface, which will be described later, on the holding member. May be abbreviated as C plane and D plane, respectively.

  The packaging material constituting the A surface or the C surface is substantially impermeable to water vapor, and the packaging material constituting the B surface or D surface is water vapor permeable. Further, each of them may be non-breathable or partly or entirely breathable. However, it is necessary for at least a part of both surfaces to have air permeability.

The heating element included in the thermal stimulation device of the present invention is constituted by a bag body that is at least partially breathable. The moisture permeability of the bag body depends on the oxygen supply amount to the heating composition and the heating composition. 1500 to 8000 g / m ² · day is preferable from the viewpoint of exudation of liquid components in the product, and 1800 to 7000 g / m ² · day is preferable, and further more preferable in view of the expansion of the heating element. It is 2500 to 6000 g / m ² · day, particularly preferably 2500 to 5500 g / m ² · day.

  When the sealing strength between the wrapping materials constituting the bag body is insufficient, an additional sheet can be sandwiched between the wrapping materials in order to improve the sealing strength. As this sheet, for example, a thermoplastic resin sheet, for example, a single-layer or laminated sheet of polyethylene, polypropylene, ethylene vinyl acetate (EVA), or the like having a hole can be used. For example, the holes may have a hole diameter of 50 to 1000 μm, preferably 100 to 600 μm, and a pitch of 0.5 to 15 mm, preferably about 1.4 to 2.5 mm. This sheet is also effective to reinforce the strength of the packaging material and to prevent the exothermic composition from leaking when the heating element breaks when expanded, so it is advantageous to be provided inside the breathable packaging material. It is.

  In the thermal stimulation device of the present invention, the surface temperature of the palm contact surface (A surface or C surface) is different from the surface temperature of the stimulated portion contact surface (B surface or D surface) 5 minutes after the rise of heat generation. The former is lower than the latter. Here, the “surface temperature at 5 minutes after the rise of heat generation” means that a gas barrier bag containing a heating element measured by a temperature sensor installed on each surface is opened (or air) at room temperature (23 ° C.) in air. Each surface temperature after 5 minutes from the start of contact with oxygen in the inside).

  As described above, in the present invention, the surface temperature on the palm contact surface (A surface or C surface) side in the use state is lower than the surface temperature on the stimulated portion contact surface (B surface or D surface) side. It is characteristic that This is due to the usage characteristics that the contact surface of the palm part continuously contacts the palm part, whereas the contact surface of the stimulated part contacts the treatment part intermittently in a non-fixed manner. In other words, the palm contact surface is not intended to apply heat to the palm, but continuously heats the palm, thereby increasing the possibility of heat storage, burns, or low temperature burns. On the other hand, if the contact surface of the stimulated part is designed to have an optimum temperature for the palm part, the heat felt at the treated part is insufficient, and the effects of thermal stimulation and tactile stimulation tend to be insufficient.

  The surface temperature 5 minutes after the rise of heat generation on the stimulated part contact surface (B surface or D surface) is 50 to 80 ° C., considering the intensity of thermal stimulation to the stimulated part and the comfort of stimulation. Is preferable, and 65 to 75 ° C. is particularly preferable.

  Similarly, the surface temperature 5 minutes after the rise of heat generation on the palm surface contact surface (A surface or C surface) is 20 to 75 ° C., preferably 20 to 70 ° C., more preferably 20 to 65 ° C. Preferably, the difference in surface temperature after rising for 5 minutes between the stimulated part contact surface (B surface or D surface) and the palm contact surface (A surface or C surface) is 2 ° C. or more, more preferably It is 5 ° C or higher. In addition, the maximum surface temperature on the palm contact surface (A surface or C surface) side in use is preferably 20 to 45 ° C, more preferably 20 to 40 ° C.

  Desired surface temperatures of the palm part contact surface side and the stimulated part contact surface side can also be realized by appropriately selecting a heat generation composition having different heat generation characteristics and / or different packaging materials on both sides, You may implement | achieve by installation or design of the thermal relaxation layer of the palm part contact surface mentioned later and / or the stimulated part contact layer of the stimulated part contact surface.

In addition, when the thermal stimulation device is intermittently brought into contact with the living body, the maximum heat flow rate on the contact surface (surface B) of the stimulated part 5 minutes after the start of heat generation from the viewpoint of the strength and comfort of the thermal stimulation. Is preferably 600 W / m ² or more. More preferably, it is 1000 W / m ² or more, and particularly preferably 1500 W / m ² or more.

  Here, “maximum heat flow 5 minutes after the rise of heat generation” means that in a room temperature (23 ° C.) air, the gas barrier bag containing the heating element is opened, the heating element is taken out, and the B side or D side The contact surface of the stimulated part (B surface or D surface) is brought into contact with the heat flow sensor and the maximum heat flow value per unit area in one minute from the time of contact is said.

It is preferable that the thermal body of the thermal stimulation device of the present invention expands at least temporarily during heat generation. The expansion of the heating element can be realized by appropriately selecting and combining the composition and amount of the exothermic composition, the moisture permeability, pore diameter, strength, and the like of the packaging material. From the viewpoint of the performance of the thermal stimulation tool, for example, the ability to follow the contact surface with uneven parts to be stimulated, the feeling of use, and the efficient transmission of thermal stimulation, the expansion coefficient is 1.1 to 20.0. It is preferably 2.0 to 15.0, more preferably 3.0 to 10.0. Here, the “expansion coefficient” means a value obtained by dividing the maximum thickness reached during heating of the heating element by the thickness of the heating element before starting heating, specifically, a measurement sample before starting heating. The surface of the heated body to be stimulated is placed on the lab bench, and the thickness (mm) of the sample is measured (measured value = D1). Then, when the thickness reaches the maximum, the thickness (mm) of the sample is measured (measured value = D2), and the following formula is calculated based on these measured values.
Expansion coefficient = D2 / D1

  The thermal stimulation device of the present invention may be composed of only a thermal body, but may have any additional element in addition to the thermal body. For example, you may have the member which hold | maintains a thermal body to a palm part, a thermal relaxation layer, a to-be-stimulated part contact layer, etc.

  The member that holds the thermal body on the palm (hereinafter also referred to as “member held on the palm” or “holding member”) may be provided on the thermal body or may be separated from the thermal body. . For convenience, the former may be referred to as an integral type and the latter as a separate type.

  It has various advantages for the practitioner that the thermal stimulation device of the present invention has a member that is held by the palm. That is, the thermal stimulation device of the present invention can be not only fixed to the palm part, but also can adopt a fixing method suitable for the use form of performing treatment on each part of the body, and can be appropriately held during use. Is possible. Furthermore, it can adjust so that the thermal heat to the palm part to operate may not become excessive, a burn of a palm part or a low temperature burn can be prevented, or fatigue can be relieved.

  For example, as the holding member, fibers, paper, resin, rubber or the like processed into a string shape, a band shape, a net shape, a sheet shape, or the like can be used. In the case of an integral type, the holding member made of these materials is configured to cover a part or the entire surface of the thermal element on the palm contact surface (A surface) side. In general, a part of the end portion is fixed to the palm part contact surface (A surface) side by a method such as hook-and-loop fastener, fusion, or adhesion, and the palm part contact surface of the holding member and the heating element By inserting a hand between the (A surface) side and the thermal element can be held in the palm.

  As the holding member, a member made of an adhesive can also be used. For example, an adhesive member such as an adhesive can be provided partially or entirely on the palm contact surface (A surface) side of the thermal body, and the thermal body can be held on the palm part in a form of being attached to the palm part. .

  The adhesive used here may be a medically acceptable adhesive such as acrylic or rubber.

  Any one of these holding members may be employed, but two or more may be used in combination as appropriate.

  The holding member includes a housing portion for housing the thermal body main body portion, and may be one that is not integrated with the thermal body, that is, a separation type. Here, the heating element main body refers to a portion other than the holding member including a bag made of a packaging material in which a heat generating composition is accommodated.

  In this case, the material of the holding member is the same as in the case of the integrated type, but at least a part of the packaging material of the main body is breathable. And the accommodating part for accommodating the thermal body main body part of a separation-type holding member has a palm part contact surface (C surface) and a stimulated part contact surface (D surface), and at least one of both surfaces or one surface thereof. The part has air permeability and has an opening for taking in and out the heating element. In this aspect, a thermal relaxation layer described later may be provided inside or outside the C surface, and / or a stimulated part contact layer described later may be provided outside the D surface. In this aspect, a plurality of thermal body main body portions may be used for one holding member, and in that case, an effect similar to the case where the exothermic composition is divided and accommodated in two or more air chambers is obtained. can get. In this embodiment, the holding member can be used a plurality of times, which is economical.

  The thermal relaxation layer is a layer for at least partially reducing the heat generated in the palm part so that the temperature at the palm part contact surface is lower than the temperature at the stimulated part contact surface. As the thermal relaxation layer, a continuous foam sheet, an independent foam sheet and a sheet provided with a through-hole, a nonwoven fabric, cloth, paper, a synthetic resin sheet, and the like can be used alone or in layers. The thermal relaxation layer can be provided on the palm surface contact surface (A surface) of the integrated thermal stimulation device (thermal body), but when it has a separate holding member as described above, the holding member housing portion A similar thermal relaxation layer can be provided on the palm part contact surface (C surface) or on the inside thereof.

  The stimulated part contact layer is a layer for increasing the effect in touch therapy. The contact part of the stimulated part can optimize the touch of the living body surface, particularly the skin according to the purpose and / or preference of the effect of the touch stimulation, and improve the durability of the thermal body or the thermal stimulation device. You can also.

  The contact portion of the stimulated part is flexible and can withstand a slight curved surface and / or slippery when in contact with the surface of a living body and / or withstands movements such as rubbing and rubbing in touch therapy. It is preferable to have wearability. Moreover, characteristics can be selected or set as appropriate according to use conditions such as thermal conductivity and sweat absorption. As the material, for example, a continuous foam sheet, an independent foam sheet and a sheet provided with a through-hole, a non-woven fabric, a woven fabric (including velvet etc.), paper, a synthetic resin sheet, etc. are singly or laminated. Can be used. Furthermore, these single or laminated sheets can be obtained by laminating or synthesizing a surface material having a low friction coefficient, for example, a net-like sheet such as a lattice or stripe of synthetic resin such as polyethylene or polyester by a method such as adhesion or fusion. A resin protrusion-like structure (for example, a granular protrusion) may be provided and processed into a form having irregularities or protrusions on the surface. When the stimulated part contact layer or the outermost layer thereof is made in this way, the effects of slipperiness, wear resistance, and touch therapy can be improved, or thermal stimulation can be applied more effectively. Furthermore, the surface of the stimulated part contact layer may be subjected to resin processing such as silicon and Teflon (registered trademark), thereby adding or improving advantageous functions such as water repellency, oil repellency and lubricity. Can do.

  The stimulated part contact layer can be provided on the stimulated part contact surface (B surface) of the thermal stimulation tool (thermal body). However, in the case of having a separate holding member as described above, the holding member accommodating part. A similar stimulated part contact layer can be provided on the stimulated part contact surface (D surface).

  Further, the thermal stimulation device of the present invention can be expected to have various physical or mental effects such as a relaxation effect by percutaneous absorption and / or inhalation on the stimulated part contact layer, the exothermic composition, the palm part contact layer, and the like. Ingredients such as various drugs, Chinese herbal extracts, oils, fragrances, dried plant products (eg mugwort, loquat leaves, etc .: mogus) and the like can be incorporated and used by blending, impregnation or lamination. Preferably, the inclusion site is the stimulated part contact layer and / or the exothermic composition.

  Examples of drugs include humectants, free radical scavengers, keratolytic agents, vitamins, anti-elastase agents, anti-collagenase agents, nitrogenous organic substances, fatty acid derivatives, steroids, trace elements, bleaching agents, algal extracts, plankton Examples include, but are not limited to, extracts, sunscreens, enzymes, coenzymes, flavonoids and ceramides.

  As a Chinese medicine extract, if it is a well-known Chinese medicine component of arbitrary forms, it can be used without a restriction | limiting in particular. Specifically, for example, Kakkon-yu, Shosei-ryu, Koshiba-ko-yu, Hachimi-jio-maru, Hochuekki-to, Kokenchu-yu, Shifufu-san, Kiyokami-fuyu-yu, Fufutsu-shosan, Gojo Examples include, but are not limited to, Sanboku-yu, Otoji-yu, Toki-yaku-san, Katsuedo-ganmaru, Annaka-san, Hirakusan-san, etc.

  Examples of oils include oils and fats such as safflower oil, olive oil, macadamia nut oil; ginger oil, immortal oil, sandalwood oil, anise oil, fennel oil, pimento berry oil, cinnamon oil, laurel oil, thyme oil, Spike Lavender Oil, Basil Oil, Coriander Oil, Citronella Oil, Melisse Oil, Geranium Oil, Palmarosa Oil, Dill Seed Oil, Orange Valencia, Lime Oil, Celery Herb Oil, Lito Sikh Beba Oil, Verbena Oil, Angelica Seed Oil, Copaiba Oil, Origa Examples include, but are not limited to, essential oils selected from nam oil, linalool, tineol and anethole.

  Examples of the fragrances include natural fragrances and synthetic fragrances. Examples of the natural fragrances include animal fragrances (for example, potato fragrance, ghost fragrance, and dragon fragrance), vegetable fragrances (for example, almond oil, cinnamon oil, and citronella). Oil, cognac oil, garlic oil, ginger oil, grapefruit oil, hop oil, lemon oil, nutmeg oil, mustard oil, brown oil, orange oil, etc.); synthetic fragrances such as hydrocarbons (such as limonene), alcohols (Citronol etc.), phenols (eugenol etc.), aldehydes (cinnamic aldehyde etc.), ketones (camphor, P-methylacetophenone etc.), lactones (coumarin etc.), esters (ethyl myristate, cinnamyl cinnamate, Methyl anthranilate and the like), but are not limited thereto.

  Examples of dried plant products include, but are not limited to, mugwort, loquat leaves, mogusa, mulberry leaves, keihi, dokudami, incense, and the like.

  These can be used alone or in combination of two or more. Of these, moxa and fragrance are preferred. By including these, for example, in the case of mogusa, the body is in a psychological state of being moistened and can be relaxed mentally, and the body is similar to the case where mogusa burns in the case of mochi due to the high temperature fever of the thermal stimulation device The health promotion effect can be expected. In the case of a fragrance, a similar relaxing effect can be expected by inhaling the scent. Furthermore, for Chinese herbal extracts and the like, the percutaneous absorption effect by high-temperature heat generation is improved.

  The amount of these components to be included varies depending on the type, but is preferably 0.1 to 10% by weight based on the exothermic composition regardless of the portion to be included.

  The thermal stimulation device of the present invention has its palm contact surface on the inside (that is, it comes into contact with the palm of the practitioner), and the stimulated portion contact surface on the outside (that is, the treatment site can be contacted). The practitioner holds the palm part, and the contact surface of the stimulated part is directly or directly (directly on the body surface) or indirectly (for example, via a cloth) in a non-fixed manner ( It can be used by contact (instantaneously or intermittently). In this way, a thermal effect and a tactile stimulation effect can be given to a living body that is easily and simply.

  The thermal stimulation device of the present invention is generally stored in a gas barrier outer bag and stored until use. When it has a separation-type holding member, only the thermal body main body may be accommodated in the airtight outer bag. In this case, two or more thermal body main body portions may be combined with one holding member and supplied as a set that can be used a plurality of times.

Example 1
Wrapping material: A laminated product (air permeability 3,000 seconds / 100 cc, moisture permeability 3300 g / m ² · 24 h) of a polyethylene porous film (40 μm) and a polypropylene non-woven fabric (40 g / m ² ) is accommodated in the exothermic composition. It was used on the stimulated part contact surface (B surface) side of the bag. A laminated product of a polyethylene film (30 μm thick) and a non-breathable foamed polyethylene sheet (1 mm thick) was used on the palm contact surface (A surface) side of the bag body containing the exothermic composition. This non-breathable foamed polyethylene sheet has a thermal relaxation function and is expected to have an effect of suppressing excessive heat transfer to the palm.

  Exothermic composition: A mixture of 40 parts by weight of iron powder, 17 parts by weight of activated carbon, 15 parts by weight of vermiculite, 5 parts by weight of potassium chloride and 23 parts by weight of water was used.

  Heating body: First, a polyethylene film (25 μm thickness) in which both packaging materials of 135 × 100 mm are stacked with a polyethylene film inside, and perforated (hole diameter 0.2 mm, hole pitch 1.4 mm) between them. The both short sides and one end of the long side were heat-sealed. Furthermore, the center part of the long side is heat sealed in parallel with the short side with a width of 10 mm to form a two-air chamber bag, and 10 g each of the exothermic composition is accommodated between the perforated polyethylene film and the A-side polyethylene film. After that, the remaining one side (long side) was heat-sealed. The surrounding heat seal width was 5 mm.

Holding member: Polypropylene nonwoven fabric (70 g / m ² ) is cut into 135 × 100 mm and laminated on the A-surface side of the heating element, and two end portions of 100 mm width are each 5 mm width at two end portions of the heating element. Glued with.

  It is desirable that the holding member is previously bonded before the exothermic composition is accommodated.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used.

  After a holding member was attached to the thermal body to produce a thermal stimulation device, the thermal stimulation device was quickly accommodated in an outer bag, and the opening of the outer bag was sealed by heat sealing.

Example 2
Packaging material: Polyethylene non-woven fabric “Tyvek” manufactured by DuPont (trade name) (42.5 g / m ² ) (air permeability 20 seconds / 100 cc, moisture permeability 6900 g / m ² · day) on the contact surface (B A laminate sheet of a polyethylene film (30 μm thick) and a rayon nonwoven fabric (55 g / m ² ) was used on the palm contact surface (A surface) side of the bag.

  Exothermic composition: A mixture of iron powder 55 parts by weight, activated carbon 10 parts by weight, superabsorbent resin (sodium polyacrylate) 2 parts by weight, sodium chloride 3 parts by weight, and water 30 parts by weight was used.

  Heater: The polyethylene non-woven fabric packaging material having a diameter of 100 mm and the laminated sheet with the non-woven fabric side facing each other were overlapped, and the peripheral portion was heat-sealed leaving a part with a width of 5 mm. 15 g of the exothermic composition was placed in this bag, and the remaining opening was sealed in the same manner as described above.

Holding member: An adhesive (rubber-based Styrene-Isoprene-Styrene hot melt agent) is applied to both sides of a separately prepared circular polyester nonwoven fabric (60 g / m ² ) having a diameter of 100 mm to a thickness of 120 μm. One side of this polyester nonwoven fabric was pressure-bonded onto the rayon nonwoven fabric on the contact surface (A surface) side.

  At the time of use, the opposite surface of the polyester non-woven fabric affixed to the A surface side was affixed to the palm and used.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used.

  After the holding member was pressure-bonded to the thermal body to produce a thermal stimulation device, the thermal stimulation device was quickly accommodated in an outer bag, and the opening of the outer bag was sealed by heat sealing.

Example 3
Packaging material: Polyester non-woven fabric (30 g / m ² ), perforated polyethylene film (hole diameter 0.5 mm, hole pitch 1.4 mm) and polyethylene porous film laminate (air permeability 6500 sec / 100 cc) , 1800 g / m ² · day) was used for both the palm contact surface (A surface) side and the stimulated portion contact surface (B surface) side.

  Exothermic composition: A mixture of 60 parts by weight of iron powder, 6 parts by weight of activated carbon, 10 parts by weight of vermiculite, 3 parts by weight of potassium chloride and 21 parts by weight of water was used.

  Heating body: Two sheets of the above-mentioned laminate packaging material having a size of 80 × 45 mm were prepared per one heating body, stacked with the polyethylene porous film side inside, and heat-sealed with a width of 5 mm around three sides. 10 g of the exothermic composition was placed in this 80 × 45 mm bag, and the remaining side (opening) was sealed in the same manner as described above.

Holding member: Prepare a 135 × 100 mm polypropylene non-woven fabric (50 g / m ² ) and a non-breathable foamed polyethylene sheet (1 mm thickness), and stack the two sheets to provide two short sides at both ends and one long side at one end. Each of them was bonded with a width of 5 mm, and the central part of the long side was bonded with a length of 100 mm and a width of 10 mm in parallel with the short side to produce a heating element housing part.
The non-breathable foamed polyethylene sheet (1 mm thick) surface was used as the palm contact surface (C surface).

Further, a polypropylene nonwoven fabric (70 g / m ² ) was cut into 135 × 100 mm, laminated on the palm part contact surface (C surface) of the housing portion, and two end portions with a width of 100 mm were bonded to each other with a width of 5 mm. .

  At the time of use, the two heating element main body portions were inserted into the accommodating portion of the separation type holding member and used.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used.

  After producing the said thermal body main-body part, it accommodated in the outer bag rapidly, and sealed by heat-sealing.

Example 4
Wrapping material: Polyester, polyethylene, polypropylene composite nonwoven fabric (50 g / m ² ) (air permeability 0 sec / 100 cc, moisture permeability 8000 g / m ² · day) was used as the stimulated part contact surface (B surface) side. A laminated product of a polyethylene film (30 μm thick) and a non-breathable foamed polyethylene sheet (1 mm thick) was used on the palm contact surface (A surface) side. This non-breathable foamed polyethylene sheet has a thermal relaxation function and is expected to have an effect of suppressing excessive heat transfer to the palm.

  Exothermic composition: A mixture of 43 parts by weight of iron powder, 17 parts by weight of activated carbon, 15 parts by weight of vermiculite, 5 parts by weight of potassium chloride and 20 parts by weight of water was used.

  Heating body: A polyethylene film (the hole diameter is 0.2 mm, the hole pitch is 1.4 mm) between the two packaging materials having a size of 135 × 100 mm, with the A surface side overlapped with the polyethylene film inside. 25 μm thickness), and heat-sealed at 2 mm on both ends of the short side and 1 place on the long side with a width of 5 mm each.

  Next, 20 g of the exothermic composition was accommodated between the perforated sheet and the A-side polyethylene film from the opening at one end of the long side, and then the opening was heat sealed.

Holding member: Polypropylene non-woven fabric (70 g / m ² ) is cut into 135 × 30 mm and laminated on the A surface side of the heating element, and two 30 mm wide end portions are placed in the center of two 100 mm width end portions of the heating element. Each was bonded with a width of 5 mm.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used.

  After producing the said thermal stimulation tool, it accommodated in the outer bag rapidly, and sealed by heat-sealing an opening part.

Example 5
Packaging material: Polyester nonwoven fabric (40 g / m ² ) and a porous membrane laminated with a polyethylene porous film (air permeability 9000 seconds / 100 cc, moisture permeability 1500 g / m ² · day) ) Used as side. A laminated sheet of a polyethylene film (30 μm thick) and a rayon nonwoven fabric (130 g / m ² ) was used on the palm part contact surface (A surface) side.

  Exothermic composition: A mixture of 50 parts by weight of iron powder, 7 parts by weight of activated carbon, 10 parts by weight of vermiculite, 3 parts by weight of sodium chloride and 30 parts by weight of water was used.

  Heating body: Each of the above-mentioned packaging materials was 135 × 100 mm in size, overlapped with the polyethylene film side inside, and heat-sealed with a width of 5 mm on three sides. 20 g of the exothermic composition was placed in this bag, and the opening was heat-sealed with a width of 5 mm.

Holding member: Elastomer spunbonded nonwoven fabric (Idemitsu Unitech Co., Ltd., 70 g / m ² ) is cut into 135 × 100 mm, laminated on the A-side of the heating element, and two 100 mm wide end portions are respectively provided. Fusing with a width of 5 mm.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used in the same manner as in Example 4.

Example 6
Wrapping material: Nylon nonwoven fabric (35 g / m ² ) and polyethylene porous film laminated breathable membrane (air permeability 12000 sec / 100 cc, moisture permeability 1300 g / m ² · day) ) Used as side. A laminated sheet of a polyethylene film (30 μm thick) and a non-breathable foamed polyethylene sheet (1 mm thick) was used on the palm contact surface (A surface) side. This non-breathable foamed polyethylene sheet has a thermal relaxation function and is expected to have an effect of suppressing excessive heat transfer to the palm.

  Exothermic composition: A mixture of 40 parts by weight of iron powder, 17 parts by weight of activated carbon, 15 parts by weight of vermiculite, 5 parts by weight of potassium chloride and 23 parts by weight of water was used.

  Heating body: Each of the above-mentioned packaging materials was 135 × 100 mm in size, overlapped with the polyethylene film side inside, and heat-sealed with a width of 5 mm on three sides. 20 g of the exothermic composition was placed in this bag, and the opening was heat-sealed with a width of 5 mm.

Holding member: Polypropylene non-woven fabric (70 g / m ² ) is cut into 135 × 30 mm and laminated on the A surface side of the heating element, and two 30 mm wide end portions are placed in the center of two 100 mm width end portions of the heating element. Each was bonded with a width of 5 mm.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used in the same manner as in Example 4.

Example 7
Wrapping material: LLDPE nonwoven fabric (30 g / m ² , air permeability 0 sec / 100 cc, moisture permeability 8300 g / m ² · day) was used as the stimulated part contact surface (B surface) side of the bag. A laminated sheet of a polyethylene film (30 μm thick) and a non-breathable foamed polyethylene sheet (1 mm thick) was used on the palm contact surface (A surface) side. This non-breathable foamed polyethylene sheet has a thermal relaxation function and is expected to have an effect of suppressing excessive heat transfer to the palm.

  Exothermic composition: A mixture of 40 parts by weight of iron powder, 17 parts by weight of activated carbon, 15 parts by weight of vermiculite, 5 parts by weight of potassium chloride and 23 parts by weight of water was used.

  Heating body: Each of the above-mentioned packaging materials was 135 × 100 mm in size, overlapped with the polyethylene film side inside, and heat-sealed with a width of 5 mm on three sides. 20 g of the exothermic composition was placed in this bag, and the opening was heat-sealed with a width of 5 mm.

Holding member: Polypropylene non-woven fabric (70 g / m ² ) is cut into 135 × 30 mm and laminated on the A surface side of the heating element, and two 30 mm wide end portions are placed in the center of two 100 mm width end portions of the heating element. Each was bonded with a width of 5 mm.

  Outer bag: A commercially available OPP / K coated gas barrier bag was used in the same manner as in Example 4.

Example 8
A thermal stimulator having the same configuration as that of Example 1 was manufactured. However, for the laminated product of the polyethylene porous film and the polypropylene nonwoven fabric used on the stimulated part contact surface (B surface) side of the bag body containing the exothermic composition, the weight of the exothermic composition is 100% during lamination. As a result, 0.5% by weight of “mogusa” was scattered and added.

Test Example The heat stimulation device of the present invention produced in Examples 1 to 8 was tested for heat generation characteristics, expansion rate, feeling of use, and the like by the following methods. In addition, when possible, as a reference example, a general commercially available disposable type warmer manufactured by Company A (Reference Example 1), a general type of disposable warmer manufactured by B Company (Reference Example 2) or manufactured by Company C (Reference Example 3), general disposable shoes for shoes, manufactured by Company D (Reference Example 4) or manufactured by Company E (Reference Example 5) Were similarly tested. Moreover, it is a commercially available hot-boiled material, and is a nonflammable type that does not use fire (Reference Example 6) and a flammable type that uses fire (Reference Example 7) (both manufactured by B Company). Measurements were also made.

<Use test method>
The subject (the subject) was allowed to wear a commercially available shirt (35% cotton, 65% polyethylene) as clothes.
Take out the thermal stimulation device of the present invention produced in the examples or the thermal device of the reference example from the outer bag, hold it in the hand by the practitioner, and lightly press it directly on the skin or on the subject's back from above the clothes For example, the feeling of use was evaluated by intermittent contact with the body.

<Temperature measurement method>
Temperature measurement of palm part contact surface (A surface) and stimulated part contact surface (B surface) was performed at room temperature (23 ° C) and a hot water circulation bottom plate controlled at 34 ° C in a thermostatic chamber (surface material: 8mm thick chloride) On the vinyl plate), the palm part contact surface of the thermal stimulation device of Examples and Reference Examples 1 to 5 is placed on the bottom, and between the vinyl chloride plate and the palm part contact surface, and the stimulated part contact surface, respectively. At the center, a temperature sensor (manufactured by Rika Denki, thermocouple (chromel alumel, JIS K) model name: ST-50) is attached, and the temperature is 5 minutes after the gas barrier bag and other packaging are opened and exposed to air. Was measured and this was defined as “surface temperature 5 minutes after the rise of heat generation”.

  In addition, the temperature of the contact surface (B surface) of the stimulated part of the thermal stimulation tool of Reference Example 6 is measured 5 minutes after the time when the aluminum sheet covering the ventilation hole of the thermal stimulation tool is peeled off. In the measurement of the temperature of the contact surface (B surface) of the stimulated part of the thermal stimulation tool of Example 7, the temperature was measured 5 minutes after the ignition point, and this was defined as the “surface temperature 5 minutes after the rise of heat generation”.

<Heat flow measurement method>
The heat flow rate of the thermal stimulation tool in Examples and Reference Examples 1 to 5 was the same as in the temperature measurement method, and the hot water circulation bottom plate (surface material: 8 mm) temperature-controlled at 34 ° C. in a thermostatic bath at room temperature (23 ° C.). On the thick vinyl chloride plate), the palm surface contact surface of the thermal stimulation tool was left to stand, and the thermal body was taken up 5 minutes after opening the package such as a gas barrier bag and exposed to air.

  This thermal stimulation tool is placed on the following heat sensor that has been previously mounted on the board surface, this time with the stimulated part contact surface (B surface) facing down, and at 34 ° C. from the palm part contact surface (A surface). A load was applied for 1 minute with an iron weight of 1.5 kg (length 70 mm, width 90 mm, height 30 mm) kept at a maximum, and the maximum heat flow per minute was measured and calculated under the following conditions. “Maximum heat flow rate 5 minutes after the start of exotherm”.

  Moreover, the heat flow rate of the thermal stimulation tool of Reference Examples 6 and 7 is on a warm water circulation bottom plate (surface material: 8 mm thick vinyl chloride plate) whose temperature is controlled at 34 ° C. at room temperature (23 ° C.). In the thermal stimulation device of Reference Example 6, after standing still on it, the temperature was stabilized, when the aluminum sheet covering the vent hole was peeled off, and in the thermal stimulation device of Reference Example 7, from the ignition time, respectively. The maximum heat flow in 5 minutes was measured and calculated under the following conditions, and this was defined as “the maximum heat flow 5 minutes after the rise of heat generation”.

  Heat sensor: Eihiro Seiki Co., Ltd. heat sensor (model MF-180) 42 mm x 20 mm x 0.9 mmt was used, and the sensor surface (42 mm x 20 mm) was brought into direct contact with the hot water circulation bottom plate maintained at 34 ° C. It fixed with the adhesive tape of PET base material.

  Calculation of heat flow: The heat flow per unit area on the sensor surface (42 mm × 20 mm) was calculated from the recorded voltage and instrument constant (heat flow = recording voltage / instrument constant).

  In addition, the kind of the hot tub of the reference example in which the heating tool area is smaller than the sensor area was obtained by multiplying the measured value by the area converted value (heat flow = sensor area / heating tool area).

<Moisture permeability measurement conditions>
The moisture permeability of the breathable packaging material used for the production of the thermal element was measured under the following conditions according to “Test method for water vapor permeability of plastic film and sheet” of JIS K7129.
Measuring device Lyssy L80-4000 type Moisture permeation condition 40 ℃ / 100% RH to 40 ℃ / 10% RH
Calibration sample PET 19μm thickness (25g / m ² · day)

<Air permeability measurement method>
The air permeability of the air-permeable packaging material used for the production of the thermal element was measured by Asahi Seiko Co., Ltd.'s Oken digital specimen type air permeability / smoothness tester, Model EG. 6 (Test method with reference to JIS P8117).

<Result>
Tables 1 and 2 summarize.

As for the thermal stimulation tool of Example 1, the temperature 5 minutes after the rising of the contact surface (B surface) of the stimulated part showed 70 ° C., and then the heat generation at 40 ° C. or higher was maintained for 20 minutes. The temperature of the palm surface contact surface (center of the A surface) after 5 minutes of rise was 67 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 1990 W / m ² . In addition, this thermal body (thermal stimulation device body) started to swell after 1 minute after opening the gas barrier bag, and expanded to an expansion rate of 9.8.

  Since the expanded thermal body has a moderately curved shape and easily deforms following the shape of the object, it can be brought into contact with the uneven portion of the body. For this reason, the tactile sensation at the time of contact and the transmission of heat were pleasant for the subject, and the subject felt a pleasant thermal stimulus. The practitioner could use it repeatedly for 20 minutes until the end of the fever.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

  For the thermal stimulation device of the present invention produced in Example 2, the temperature 5 minutes after the rise of the contact surface (B surface) of the stimulated part showed 72 ° C., and then the heat generation at 40 ° C. or higher was maintained for 15 minutes.

Moreover, the temperature of the palm part contact surface (A surface center part) 5 minutes after rising showed 69 degreeC, and the maximum heat flow after 5 minutes of rising of heat_generation | fever showed 3580 W / m < ² >. This heating element started to expand in 2 minutes after opening the gas barrier bag, and expanded to an expansion rate of 2.4.

  Since the expanded thermal body has a moderately curved shape and easily deforms following the shape of the object, it can be brought into contact with the uneven portion of the body. For this reason, the subject feels comfortable touch and the transmission of heat, and the subject felt a pleasant thermal stimulus. It was possible for the practitioner to use it repeatedly for 15 minutes until the fever ended.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

About the thermal stimulation tool manufactured in Example 3, the temperature 5 minutes after the rising of the contact surface (B surface) of the stimulated part showed 59 ° C., and then the heat generation at 40 ° C. or higher was maintained for 41 minutes. The temperature of the palm surface contact surface (surface A) after 5 minutes of rise was 54 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 1600 W / m ² . Moreover, this thermal body started to swell after 4 minutes after opening the gas barrier bag, and expanded to an expansion rate of 2.2.

  Since the expanded thermal body has a moderately curved shape and easily deforms following the shape of the object, it can be brought into contact with the uneven portion of the body. For this reason, the subject feels comfortable touch and the transmission of heat, and the subject felt a pleasant thermal stimulus. The practitioner could use it repeatedly for 41 minutes until the end of the fever.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

About the thermal stimulation tool of this invention manufactured in Example 4, the temperature 5 minutes after the rise of the contact surface (Surface B) of the stimulated part showed 79 ° C., and thereafter, heat generation at 40 ° C. or higher was maintained for 13 minutes. The temperature of the palm surface contact surface (A surface center) after 5 minutes of rise was 77 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 2550 W / m ² . The hot body did not swell or decompress.

  Since this hot body is high in temperature and the contact feeling with the human body is harder than in Examples 1 to 3, the subject felt a relatively strong thermal stimulus. Although the heat transfer at the time of contact was excessive, the tactile sensation and heat transfer at the time of use can be sufficiently controlled by adjusting the contact frequency and the degree of pressing, and repeatedly used for 13 minutes until the heat generation ends. It was possible to do.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

About the thermal stimulation tool of this invention manufactured in Example 5, the to-be-stimulated part contact surface (B surface) showed the temperature of 51 degreeC 5 minutes after starting. Further, the temperature of the palm part contact surface (A surface center portion) after 5 minutes of rise was 48 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 620 W / m ² .

  Moreover, this thermal body showed the pressure-reduced state from the start of use, and the thermal body exhibited the thin sheet form during heat_generation | fever. For this reason, it was possible to be pressed and deformed along the concavo-convex part of the body and brought into contact. The tactile sensation at the time of contact and the transmission of heat were pleasant, and the subject felt a relatively weak thermal stimulus and could be used repeatedly for 2 hours until the end of the fever. Thereafter, the heating element left at room temperature maintained an exotherm of 40 ° C. or more for 2 hours.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

For the thermal stimulation tool of the present invention produced in Example 6, the temperature 5 minutes after the rise of the contact surface (Surface B) of the stimulated part showed 47 ° C., and thereafter, heat generation at 40 ° C. or higher was maintained for 2 hours. The temperature of the palm part contact surface (center of A surface) after 5 minutes of rise was 43 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 450 W / m ² .

  Moreover, this thermal body showed the pressure-reduced state from the start of use, and the thermal body exhibited the thin sheet form during heat_generation | fever. For this reason, it was possible to be pressed and deformed along the concavo-convex part of the body and brought into contact. The tactile sensation at the time of contact and the transmission of heat were within the allowable range and could be used repeatedly for 2 hours until the end of heat generation, but the subject felt a weak heat stimulus. Thereafter, the heating element left at room temperature maintained an exotherm of 40 ° C. or more for 2 hours.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

About the thermal stimulation tool of this invention manufactured in Example 7, the temperature 5 minutes after rise | starting-up of the to-be-stimulated part contact surface (B surface) showed 84 degreeC, and maintained the heat_generation | fever of 40 degreeC or more for 12 minutes after that. The temperature of the palm contact surface (center of the A surface) after 5 minutes of rising was 82 ° C., and the maximum heat flow rate after 5 minutes of rising of heat was 3600 W / m ² . This hot body did not swell or depressurize, and showed a maximum temperature 5 minutes after the start of use.

  Since this hot body is high in temperature and has a harder contact with the human body than Examples 1 to 3, the subject felt a strong thermal stimulus. Heat transmission at the time of contact was excessive, but tactile sensation and heat transmission at the time of use can be controlled by adjusting the contact frequency and the degree of pressing, and it is used repeatedly for 12 minutes until the heat generation ends. It was possible.

  Further, the appearance of the thermal stimulation tool was observed during and after use, but no leakage of the stored exothermic composition was confirmed.

  Regarding the thermal stimulation device of the present invention produced in Example 8, the heat generation characteristics, feeling of use, etc. were exactly the same as in Example 1, but from the start of use until the end of heat generation, the same “mogusa” The scent drifted.

About the disposable body warmer of Reference Example 1, the temperature 5 minutes after the rise of the contact surface (B surface) of the stimulated part shows 36 ° C., reaches 40 ° C. 10 minutes after opening the gas barrier bag, and then generates heat of 40 ° C. or more. Maintained for 12 hours. The temperature of the palm part contact surface (A surface center) after 5 minutes of rise was 37 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 180 W / m ² .

  In addition, this disposable body warmer maintains a reduced pressure state from the beginning of use and needs to be pressed to make contact with the uneven part of the body. The subject was uncomfortable with no thermal stimulation. This did not change even when the contact method was adjusted. Discontinuation of use in the middle of fever.

For the disposable body warmer of Reference Example 2, the temperature 5 minutes after the rise of the contact surface (B surface) of the stimulated part shows 30 ° C., then reaches 40 ° C. 11 minutes after opening the gas barrier bag, and then generates 40 ° C. or more. For 12 hours. The temperature of the palm part contact surface (A-plane center) after 5 minutes of rise was 34 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was −16.4 W / m ² .

  In addition, this disposable body warmer does not swell or depressurize from the beginning of use, and it is necessary to press it to make contact along the uneven part of the body, and it can not be said that both the tactile sensation and heat transfer at the time of contact are pleasant, The subject was uncomfortable with no thermal stimulation. This did not change even when the contact method was adjusted. Discontinuation of use in the middle of fever.

For the disposable body warmer of Reference Example 3, the temperature 5 minutes after the rise of the contact surface (B surface) of the stimulated part shows 30 ° C., then reaches 40 ° C. 13 minutes after opening the gas barrier bag, and then generates 40 ° C. or more. For 12 hours. The temperature of the palm contact surface (center of the A surface) after 5 minutes of rise was 34 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was −18.2 W / m ² .

  In addition, this disposable body warmer does not swell or depressurize from the beginning of use, and it is necessary to press it to make contact along the uneven part of the body, and it can not be said that both the tactile sensation and heat transfer at the time of contact are pleasant, The subject was uncomfortable with no thermal stimulation. This did not change even when the contact method was adjusted. Discontinuation of use in the middle of fever.

Regarding the disposable body warmer for shoes of Reference Example 4, the temperature 5 minutes after the rise of the contact surface (Surface B) of the stimulated part showed 52 ° C., and thereafter, heat generation at 40 ° C. or higher was maintained for 6 hours. The temperature of the palm part contact surface (center of A surface) after 5 minutes of rise was 54 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 410 W / m ² .
Moreover, this disposable shoe warmer did not swell nor depressurize from the beginning of use, and had to be pressed to make contact along the uneven part of the body, but a certain comfortable thermal stimulus was obtained. However, since there is no palm holding member and the temperature of the palm part contact surface (A surface center) is higher than the temperature of the stimulated part contact surface (B surface), it is difficult to use.

About the disposable body warmer for shoes of Reference Example 5, the temperature 5 minutes after the rising of the contact surface (B surface) of the stimulated part showed 53 ° C., and then the heat generation at 40 ° C. or higher was maintained for 40 minutes. The temperature of the palm contact surface (center of the A surface) after 5 minutes of rise was 58 ° C., and the maximum heat flow rate after 5 minutes of rise of heat generation was 1300 W / m ² .
The disposable shoe warmer started to swell after 4 minutes after opening the gas barrier bag and expanded to an expansion rate of 2.4.

  The expanded disposable hand warmer for shoes has a moderately curved shape and easily deforms following the shape of the object, and thus can be brought into contact with the uneven portion of the body. For this reason, the subject feels comfortable touch and the transmission of heat, and the subject felt a pleasant thermal stimulus. However, as in Reference Example 4, there is no palm holding member, and the temperature of the palm part contact surface (A surface center) is higher than the temperature of the stimulated part contact surface (B surface), which is difficult to use.

The temperature of the stimulated part contact surface (B surface) of the commercially available hot-boiled material of Reference Example 6 (nonflammable, non-fire type) after 5 minutes rises to 55 ° C, and the highest heat after 5 minutes of heat rise The flow rate was 630 W / m ² . Although the thermal irritation of this hot-boiled material was pleasant, it could not be used from the top of clothing due to the nature of the product, and it could not be used for touch therapy because it was affixed on the human skin. .

The temperature after 5 minutes of rise of the contact surface (B side) of the commercially available hot-bath material (flammable, fire type) of Reference Example 7 shows 56 ° C, and the maximum heat flow after 5 minutes of rise of heat generation Showed 1960 W / m ² . Although the thermal irritation of this hot-boiled material was pleasant, it could not be used from the top of clothing due to the nature of the product, and it could not be used for touch therapy because it was affixed on the human skin. . Also, because it uses fire, it was difficult to use because of safety and ash falling.

(A) is sectional drawing which shows an example of the thermal tool of this invention, (B) is sectional drawing of the thermal stimulation tool as described in Example 1. FIG. 3 is a cross-sectional view of a thermal stimulation device described in Example 2. FIG. 6 is a cross-sectional view of a thermal stimulation device described in Example 3. FIG. (A) is a thermal body, (B) is a holding member, (C) is sectional drawing of the state which inserted the thermal body in the holding member, respectively. 6 is a cross-sectional view of a thermal stimulation tool described in Example 4. FIG. 6 is a cross-sectional view of a thermal stimulation device described in Example 5. FIG. 10 is a cross-sectional view of a thermal stimulation device described in Example 6. FIG. 10 is a cross-sectional view of a thermal stimulation device described in Example 7. FIG. It is sectional drawing of the state which accommodated the thermal stimulation tool as described in Example 1 in the gas barrier outer bag.

Explanation of symbols

1. 1. Thermal stimulation tool 2. Exothermic composition 3. Polypropylene nonwoven fabric 4. Non-breathable foamed polyethylene sheet Polyethylene film6. 6. Perforated polyethylene film 7. Polyethylene porous film 8. Adhesive Polyester nonwoven fabric10. 10. Rayon nonwoven fabric Polyethylene nonwoven fabric12. 12. Polyester, polyethylene, polypropylene composite nonwoven fabric Elastomer spunbond nonwoven fabric14. LLDPE nonwoven fabric15. 15. Nylon nonwoven fabric 16. OPP / K coated gas barrier bag Holding member 18. Thermal body

Claims (8)

A thermal stimulation device that imparts thermal stimulation derived from a thermal body by intermittently contacting the living body,
a) The heating element is composed of a bag body, at least a part of which is made of a permeable packaging material, and a heat generating composition contained in the bag body that generates heat by reacting with oxygen. And
b) The heating element has a palm-surface contact surface that is substantially impermeable to water vapor (surface A) and a stimulated-portion contact surface that is water vapor-permeable (surface B).
c) The surface temperature on the stimulated part contact surface (B surface) side is higher than the surface temperature on the palm contact surface (A surface) side after 5 minutes from the rise of heat generation, and
d) A thermal stimulation device for touch therapy type thermal stimulation , wherein the thermal body expands at least temporarily during heat generation . A thermal stimulation device that imparts thermal stimulation derived from a thermal body by intermittently contacting the living body,
a) The heating element is composed of a bag body, at least a part of which is made of a permeable packaging material, and a heat generating composition contained in the bag body that generates heat by reacting with oxygen. And
b) The thermal stimulation tool has a member (holding member) that is held by the palm part separately from the thermal body,
c) The holding member has a substantially water vapor impermeable palm contact surface (C surface) and a water vapor permeable stimulated portion contact surface (D surface), and the palm contact surface (C). Surface) and the stimulated part contact surface (D surface) is configured to accommodate the thermal element,
d) The surface temperature on the stimulated part contact surface (D surface) side is higher than the surface temperature on the palm contact surface (C surface) side after 5 minutes from the rise of heat generation, and
e) A thermal stimulation device for touch therapy type thermal stimulation , wherein the thermal body expands at least temporarily during heat generation .   The thermal stimulation tool according to claim 1, wherein an expansion coefficient of the thermal body is 1.1 to 20.0. The thermal stimulation tool according to any one of claims 1 to 3, wherein a maximum heat flow rate on the stimulated part contact surface (B surface) 5 minutes after rising of heat generation is 600 W / m ² or more. The thermal stimulation tool according to any one of claims 1 to 4 , wherein a surface temperature of the stimulated part contact surface (B surface or D surface) 5 minutes after rising of heat generation is 50 to 80 ° C. The thermal stimulation tool according to any one of claims 1 to 5 , wherein a moisture permeability of the air-permeable packaging material constituting at least a part of the bag body is 1500 to 8000 g / m ² · day.   The thermal stimulation tool according to any one of claims 1 to 6, comprising one or more selected from Chinese herbal extracts, oils, fragrances, and dried plants.   The thermal stimulation tool according to any one of claims 1 to 7, which is housed and sealed in a gas barrier outer bag.

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