WO2007080969A1 - Élément de chauffage et élément de chauffage emballé - Google Patents

Élément de chauffage et élément de chauffage emballé Download PDF

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Publication number
WO2007080969A1
WO2007080969A1 PCT/JP2007/050326 JP2007050326W WO2007080969A1 WO 2007080969 A1 WO2007080969 A1 WO 2007080969A1 JP 2007050326 W JP2007050326 W JP 2007050326W WO 2007080969 A1 WO2007080969 A1 WO 2007080969A1
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WO
WIPO (PCT)
Prior art keywords
heating element
section
heating
heat generating
outer bag
Prior art date
Application number
PCT/JP2007/050326
Other languages
English (en)
Japanese (ja)
Inventor
Toshihiro Dodo
Original Assignee
Mycoal Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mycoal Co., Ltd. filed Critical Mycoal Co., Ltd.
Publication of WO2007080969A1 publication Critical patent/WO2007080969A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A61F7/032—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves

Definitions

  • the present invention relates to a heating element having a heat generating portion in which a plurality of section heat generating portions are provided at intervals by a section containing a heat generating composition that generates heat in the presence of air.
  • a heating element that contains a heat-generating composition that generates heat in the presence of air in a breathable bag can be removed from an air-tight (non-breathable) outer bag at the time of use without using fire. Heat can be obtained quickly, and it is convenient to carry and use easily. For this reason, it is widely used for use, throwing away warmers and medical warm compresses.
  • Such a heating element includes a means for preventing the heating element from moving in close contact with a desired part during use, and is widely used.
  • disposable warmers that do not have an adhesive layer
  • disposable warmers that have a sticky part on the outer surface of the inner bag
  • plaster-type adhesive layers or gels that can be applied directly to the human body
  • a heating element such as a hot compress with a compress layer.
  • These heating elements are housed in an airtight outer bag in a state where the adhesive portion, the gel layer, and the compress layer are covered with a peelable member until use.
  • the type of body warmer or hot compress that is used to cut out a part of the outer bag or to open the outer bag by opening the outer bag and take out the heating element, especially for pasting. Further, the peelable member is peeled off from the heating element and then applied to a desired site to start use.
  • an object of the present invention is to provide a heating element package with improved heat generation characteristics, waste of resources, and cost reduction.
  • the heating element of the present invention is formed by covering a heating composition that generates heat upon contact with air with a packaging material as described in claim 1, and bulges on both sides of the front and back sides.
  • Two or more divided heat generating portions are provided via the divided portions, and at least a part of each divided heat generating portion has air permeability, and can be folded at a predetermined divided portion.
  • the heat generating element is configured so that the width of the divided section is larger than 0.5 times the sum of the thicknesses of the divided heat generating sections on both sides.
  • the predetermined section to be folded can be folded with a portion having air permeability inside.
  • the invention according to claim 3 is characterized in that in the heating element according to claim 1 or 2, the number of the divided heating parts is four or more.
  • the present invention according to claim 4 is the heating element according to any one of claims 1 to 3, characterized in that the divided heat generating portions are provided in a stripe shape.
  • the invention according to claim 5 is the heating element according to any one of claims 1 to 4, characterized in that a fixing means is provided on at least a part of the exposed portion of the heating element.
  • the invention according to claim 6 is the heating element according to any one of claims 1 to 5, wherein the fixing means is an adhesive layer, and a separator is provided thereon. Let's say.
  • the heating element package of the present invention is an outer bag which is an airtight storage bag, as described in claim 7, wherein the heating element according to any one of claims 1 to 6 is folded at a predetermined section. It is characterized by being sealed in.
  • the heating element package of the present invention is an outer bag which is an airtight storage bag, as described in claim 8, wherein the heating element according to any one of claims 1 to 6 is folded at a predetermined section. And at least a part of the exposed part of the heating element is temporarily attached to at least a part of the outer bag. It is characterized by.
  • the heating element package according to claim 9 is the heating element package according to claim 8, wherein the heating element has a 180 degree peel strength (JISZ-0237) force of 0.001 to 0.9 kg / It is characterized by being temporarily attached within a range of 25 mm.
  • JISZ-0237 180 degree peel strength
  • the heating element package according to claim 10 is the heating element package according to any one of claims 7 to 9, wherein an opening notch is provided in a seal portion of the outer bag which is the airtight storage bag. It is characterized by that.
  • the heating element package according to claim 11 is the heating element package according to claim 10, wherein the notch does not contact at least the side of the outer bag which is an airtight storage bag, and the airtightness is reduced. It was provided in the seal part of the outer bag which is a bag delivery.
  • the heating element package of the present invention has two or more heating elements, each having a plurality of divided heating parts with the dividing part as an interval, and with the heating element force breathable part provided at an interval inside.
  • a heating element package that is folded into a plurality of pieces and enclosed in a heat-sealed airtight outer bag, wherein each section heating section bulges on both sides with respect to the section section. Formed in a protruding shape, both sides of the heat generating part are uneven surfaces, and the heating element is not fixed to the airtight outer bag,
  • the heating element contains a heat generating composition that generates heat upon contact with air, and the partitioning part is a seal part that does not contain a heat generating composition, and is a classification part corresponding to a folding part that exists in the heating element.
  • the width of the part is preferably larger than 0.5 times the sum of the thicknesses of the divided heat generating parts on both sides.
  • the number of the divided heat generating portions is four or more.
  • the heating element package of this invention is that a division
  • the heating element package of the present invention preferably has a fixing means in a part of the exposed portion of the heating element.
  • the heating element package of the present invention at least a part of the heating element is applied to at least a part of the inner surface of the airtight outer bag with a 180-degree pinole strength (JISZ-0237) force of 0.001 to 0.00. It is preferable to wear a 9Kg / 25mm temporary dress.
  • the heating element package according to the present invention has two or more, preferably three or more, more preferably four or more heating elements provided with a plurality of divided heating parts spaced apart from each other.
  • the heat generating element is not fixed to the airtight outer bag, and the heat generating element is
  • the section heat generating portion contains a heat generating composition that generates heat upon contact with air, the section is a seal portion that does not contain a heat generating composition, and the width of the section corresponding to the folded portion existing in the heat generating element is on both sides thereof. It is preferable that it is formed to be larger than 0.5 times the sum of the thicknesses of the segmental heating parts. Yes.
  • the divided heat generating portion is four or more divided heat generating portions.
  • the said heating element package is that the said division
  • the heating element package is temporarily attached to at least a part of an outer bag in which at least a part of the heating element is an airtight storage bag.
  • the temporary heating of the heating element package is characterized in that it is temporary wearing in the range of 180 degree peel strength (JIS Z-0237) force 001-0.9 kg / 25 mm.
  • the heating element is folded into two or more with the air-permeable surface inside, and sealed in an air-tight outer bag, thereby saving the air-tight packaging material and reducing the heating element during storage. Prevents deterioration, can be stored stably for a long time, the large-sized heating element is compact, convenient to carry, stable storage in a stable airtight outer bag, easy to use, Manufacturing costs are reduced and transportation is advantageous.
  • the heating element can be prevented from being deteriorated during storage with a small amount of water evaporated in the heating composition. Also, by temporarily attaching at least a part of the exposed portion of the heating element to the outer bag packaging material, folding it, and sealing the peripheral portion of the outer bag packaging material excluding the area corresponding to the folded heating element Further, the heating element can be prevented from being displaced during folding, the folding speed can be increased, and the yield (yield) of the heating element package is greatly improved.
  • FIG. 1 (a) is a plan view showing an example of a heating element of the present invention. (B) It is sectional drawing of ZZ.
  • FIG. 2 is an explanatory cross-sectional view for explaining the relationship between the width of the crease portion and the heat generating portion or the divided heat generating portion having the maximum thickness on each side across the crease.
  • FIG. 3 (a) is a plan view showing another example of the heating element folded in two enclosed in the outer bag of the present invention. (B) It is the sectional view of YY.
  • FIG. 4 is a plan view showing another example of the heating element of the present invention.
  • FIG. 5 is an explanatory view showing another example of the heating element of the present invention.
  • FIG. 6 is an explanatory view showing another example of the heating element of the present invention.
  • FIG. 7 is an explanatory view showing another example of the heating element of the present invention.
  • FIG. 8 is an explanatory view showing another example of the heating element of the present invention.
  • the heating element of the present invention is provided with two or more divided heat generating parts via the dividing part, and at least a part of each divided heat generating part has air permeability and is folded at a predetermined dividing part.
  • the heating element is configured so that the width of the bent section to be bent is greater than 0.5 times the sum of the thicknesses of the section heating sections on both sides. Contains a heat-generating composition that generates heat upon contact.
  • the heating element package of the present invention is a heating element package containing a folded heating element.
  • the folded heating element of the present invention may be either on the inside or on the outside, but a heating element folded with the breathable surface of the heating element on the inside is preferable.
  • Etc. are mentioned as an example. In particular, 2) and 3) are preferred.
  • the heating element package of the present invention is a heating element package in which a heating element is enclosed in a space of an outer bag formed by using a non-breathable packaging material and hermetically sealing a peripheral portion thereof.
  • a heating element package of the present invention is a heating element package in which a heating element is enclosed in a space of an outer bag formed by using a non-breathable packaging material and hermetically sealing a peripheral portion thereof.
  • a heating element package in which a folded heating element is enclosed in an outer bag which is an airtight storage bag.
  • a heating element package in which a folded heating element is enclosed in an outer bag, which is an airtight storage bag, and at least a part of an exposed portion of the heating element is temporarily attached to at least a part of the outer bag.
  • heating element package of the present invention is a heat generation in which an opening sealing means such as a notch is provided in a sealing portion at a peripheral edge of an outer bag that is a non-breathable storage bag corresponding to a storage space of the heating element. It is a body package.
  • the packaging material used for the outer bag which is a non-breathable storage bag a non-breathable packaging material described later can be used.
  • the heating element of the present invention is a heating element sealed in an outer bag which is an airtight storage bag
  • a notch for opening is provided in a seal portion of the outer bag which is an airtight storage bag.
  • the notch is provided at least in the seal portion of the outer bag which is an airtight storage bag and is not in contact with the inner side of the seal portion.
  • An example is a notch that comes into contact with the outer side of the outer bag seal part, or a notch that is in the outer bag seal part and is not in contact with both the inner side that is the side of the stored heating element and the outer side that is the opposite side.
  • the notches of the present invention are not limited, but I notches, V notches, U notches and the like are examples.
  • the seal part of the outer bag which is a non-breathable storage bag, is formed near the outside of the peripheral edge of the heating element, so that the outer bag packaging material and the heating element are in close contact, and the heating element is folded. Combined with packaging in a state, the whole is extremely compact.
  • the heating element Even if the heating element is large, the number of members can be reduced compared to a conventional heating element that does not fold, and the cost can be reduced. In addition, there is an advantage that it can reduce dust generated during use and is friendly to the global environment.
  • the notches of the present invention are not limited, but I notches, V notches, U notches and the like are examples.
  • the notch allows the user to easily tear and open the outer bag.
  • the notch forming means for forming the notch may be disposed on the downstream side of the sealing process by the sealing device, for example.
  • the outer bag may have two or more storage spaces in a chain, and the storage space hermetically seals the middle part thereof to form a plurality of storage spaces partitioned from each other. May be. In that case, it is preferable to provide an opening means such as a notch in the peripheral sealing portion of the outer bag corresponding to the storage space of each heating element.
  • “Folding” in the present invention means that at least a part of the folded portion is in contact with the region of the non-folded portion.
  • the width of the section corresponding to the folded part of the heating element is formed to be larger than 0.5 times the sum of the thicknesses of the section heating sections on both sides. That is, if the width of the section to be folded is C, and the height of the section heating section on both sides is H and L, respectively, the ratio of C to (H + L), that is, the folding ratio C / ( H + L) is usually 0.5 or more, preferably 0.5 to 10, more preferably 0.55 to 10 and even more preferably 0.6 to 10, even more preferably. 0.7 to 10, more preferably 1.0 to 10, more preferably 1.2 to 10, more preferably 1.2 to 5, and still more preferably 1.2 to 3. is there.
  • the short length is C if the heating section of the heating element is different on one side and the other side. Since the heating element of the present invention is a double-sided uneven heating element in which the section is a recess (flat shape) and the section heating section is a projection, the folding ratio (C / (H + L)) is 0.5 or more It can be folded at the section that is less than 1.
  • the narrow and (short) width shall be the width C of the section.
  • the heating element is configured such that the width of the bent section is greater than 0.5 times the sum of the maximum thicknesses of the section heating sections on both sides thereof. is there.
  • the exothermic composition used in the heating element of the present invention has moldability, the moisture in the exothermic composition does not function as an air blocking layer, and generates heat when in contact with air (oxygen).
  • the composition is not limited, but contains iron powder, carbon component, reaction accelerator and water as essential components, and contains excess water with a mobile water value of 0.01 or more and less than 14 and is contained in the exothermic composition.
  • Moisture does not function as an air barrier, and immediately after production, heat is generated in a moldable surplus water that generates heat with a temperature rise of 2 ° C within 5 minutes after being left in air at 20 ° C without wind Compositions are preferred.
  • the exothermic composition containing moldable excess water contains a water retention agent, a water-absorbing polymer, a hydrogen generation inhibitor, a pH adjuster, an aggregate, a functional substance, a molding aid, a polyoxy Far-infrared radiation from nonionics such as ethylene alkyl ethers, zwitterions, anions, cationic surfactants, hydrophobic polymer compounds such as polyethylene and polypropylene, organic key compounds such as dimethyl silicone oil, pyroelectric materials, ceramics, etc.
  • nonionics such as ethylene alkyl ethers, zwitterions, anions, cationic surfactants
  • hydrophobic polymer compounds such as polyethylene and polypropylene
  • organic key compounds such as dimethyl silicone oil, pyroelectric materials, ceramics, etc.
  • negative ion generators such as tourmaline
  • exothermic aids such as FeCl
  • metals other than iron such as silicon and aluminum
  • Metal oxides other than iron oxide such as manganese dioxide, acid substances such as hydrochloric acid, maleic acid and acetic acid, fibrous materials such as pulp, fertilizer components such as urea, moisturizers such as glycerin and D-sorbitol, mold release You may contain at least 1 type chosen from the additional component which consists of an agent or these mixtures.
  • any components of the exothermic compositions that have been disclosed in the past, are commercially available, or are used for known disposable warmers and heating elements can be appropriately selected and used. .
  • the mixing ratio of the exothermic composition is not particularly limited, the carbon component is 1.0 to 50 parts by weight with respect to 100 parts by weight of the iron powder, and the reaction accelerator is 1.0. It is a mixture containing ⁇ 50 parts by weight and water 1.0 to 60 parts by weight as essential components.
  • the following composition may be added to the exothermic composition at the following blending ratio. That is, with respect to 100 parts by weight of iron powder, water retention agent 0.01 to 10 parts by weight, water-absorbing polymer 0.01 to 20 parts by weight, pH adjuster 0.01 to 5 parts by weight, hydrogen generation inhibitor 0. 01 ⁇ : 12 parts by weight, metals other than iron 1.0-50 parts by weight, metal oxides other than iron oxide 1.0-0-50 parts by weight, surfactant 0.01- 5 parts by weight, hydrophobic polymer Compounds, aggregates, fibrous materials, functional substances, organic silicon compounds, pyroelectric substances are each 0.01--10 parts by weight, moisturizers, fertilizer components, and fever aids are 0.01--10 parts each. Parts, molding aids, and mold release agents are 0.00:! To 5 parts by weight, and acidic substances are 0.01 to 1 parts by weight. It should be noted that the proportion of the magnetic material may be further blended if necessary.
  • This blending ratio can also be applied to a reaction mixture and an exothermic mixture.
  • the mobile water value of the reaction mixture is usually less than 0.01.
  • the exothermic composition should be left in air in a 20 ° C-free environment immediately after production. It is preferable to generate fever, which has a temperature rise of more than 2 ° C within a minute.
  • heat generation with a temperature rise of 2 ° C or more within 5 minutes after standing in air at 20 ° C without wind immediately after production means a aging period such as standing for 24 hours after production.
  • a non-water-absorbing material such as polyethylene film or polyester film sheet in air in a windless 20 ° C environment immediately after manufacturing, it must be within 5 minutes.
  • the exothermic composition generates heat with a temperature rise of 2 ° C.
  • the temperature rise within 5 minutes is preferably 2 ° C or higher, more preferably 5 ° C or higher, further preferably 10 ° C or higher, and more preferably 20 ° C. or higher, more preferably, the temperature increase within 3 minutes is 10 ° C. or higher.
  • the exothermic composition temperature rise measuring method is to use the exothermic composition immediately after production or the exothermic composition molded body. Use in a wind-free environment with an ambient temperature of 20 soil C. When the sample is measured, measure it in contact with air.
  • Adhesive layer with a thickness of about 80 ⁇ m 25 ⁇ Length 250 mm X Width 200 mm Polyethylene film is attached to the support plate via the adhesive layer so that the center of the polyethylene film is at the sensor. wear.
  • the iron powder is preferably normal iron powder, iron alloy powder, or active iron powder made of iron powder or iron alloy powder having an oxygen-containing film on at least a part of the surface of the iron powder.
  • the iron oxide film is a film made of iron containing oxygen, such as iron oxide, hydroxide, and oxyhydroxide.
  • Active iron powder is an iron oxide film that is at least locally formed on the surface of the iron powder, and is formed by local batteries formed between the ground iron and the iron oxide film or by pits inside and outside the iron oxide film. The oxidation reaction promoting effect can be obtained.
  • iron powder examples include, but are not limited to, pig iron iron powder, atomized iron powder, electrolytic iron powder, reduced iron powder, sponge iron powder, and iron alloy powder thereof. Furthermore, these iron powders may contain carbon or oxygen, or iron containing 50% or more of iron and other metals. There are no particular restrictions on the type of metal contained in the alloy, etc., as long as the iron component acts as a component of the exothermic composition. However, metals such as ano-reminimum, manganese, copper, nickel, silicon, cobalt, palladium and molybdenum An example is a semiconductor. The metal of the present invention includes a semiconductor. These metals and alloys may be present only on the surface or inside, or on both the surface and inside.
  • the content of the metal other than iron is usually 0.01 to 50% by weight, preferably 0.0 :! to 10% by weight, based on the whole iron powder.
  • the water may be from a suitable source. There are no restrictions on the purity and type.
  • the content of water preferably contains:! To 70% by weight of the exothermic composition.
  • reaction mixture and the exothermic mixture before the contact treatment with the oxidizing gas preferably 0.5 to 20% by weight of the reaction mixture or the exothermic mixture is contained.
  • the carbon component is not limited as long as it contains carbon as a component.
  • adsorption protection Preferable activated charcoal,
  • the reaction accelerator is not limited as long as it can accelerate the reaction of the exothermic substance.
  • examples include metal halides, nitrates, acetates, carbonates, metal sulfates and the like.
  • An example of the metal halide is sodium chloride.
  • the water retention agent is not limited as long as it can retain water.
  • An example is wood flour.
  • the water-absorbing polymer is not particularly limited as long as it has a cross-linked structure and has a water absorption ratio of 3 times or more with respect to its own weight. It can also be a bridge between the surfaces. Conventionally known water-absorbing polymers and commercially available products can also be used. An example of the water-absorbing polymer is a crosslinked poly (meth) acrylic acid.
  • the pH adjusting agent is not limited as long as the pH can be adjusted. Alkali metal weak acid salts, hydroxides, etc. or alkaline earth metal weak acid salts, hydroxides, etc., Ca (OH) etc.
  • the hydrogen generation inhibitor is not limited as long as it suppresses the generation of hydrogen.
  • An example is a compound comprising at least one or more selected from the group consisting of xio compounds, oxidants, alkaline substances, xio, antimony, selenium and tellurium.
  • the iodo compounds include compounds with alkali metals and alkaline earth metals, metal sulfides such as sulfidizing power, metal sulfites such as sodium sulfite, and metal thiosulfates such as sodium thiosulfate. .
  • the aggregate is not particularly limited as long as it is useful as a filler and is useful for making Z or a porous heat-generating composition.
  • Examples include fossil corals (coral fossils, weathered reef corals, etc.), bamboo charcoal, and bincho charcoal.
  • the molding aid is a moldability improving agent that improves the moldability of the excess water exothermic composition in combination with moisture.
  • the molding aid is not limited as long as it is water-soluble or hydrophilic and improves the moldability of the excess water heating composition, but glucose, fructose, sorbitol, maltose, lactose are not limited.
  • Sugars such as saccharose, trenorose, pectin, sugar alcohols such as mannitol, sonorebitol, maltitol, erythritol, xylitol, corn starch, wheat starch, rice starch, corn starch, potato starch, dextrin, Rufferized starch, partially alpha-monified starch, hydroxypropyl starch, carboxymethyl starch, dicyclodextrin, ⁇ -cyclodextrin, pullulan sugar starch, crystalline cellulose, carboxymethylcellulose, hydroxypropyl cellulose, low substituted hydroxy Celluloses such as propylcellulose, hydroxypropylmethylcellulose, methenoresenololose, canoleboxymethin
  • the release agent is not limited, but is a lubricating oil composed of mineral oil, synthetic oil, animal or vegetable oil, etc., high viscosity lubricating oil such as grease, natural wax, synthetic wax, silicone oil, Examples of such resins include fluorine resins, stearic acid, and stearates.
  • the functional substance is not limited as long as it has a certain function such as medicinal properties and aroma, but specific examples include acidic mucopolysaccharides, force mitsule, catechins, chitin and chitin.
  • Hamamelis extract vitamin ⁇ , nicotinic acid derivative, algiroid, blood circulation promoters; citrus tincture, flavone derivative, naphthalene sulfonic acid derivative, anthocyanidin, vitamin ⁇ , chickenpox, concolitic acid, silanol, terminaria, bisnaga
  • mayus Swelling agent such as aminophylline, tea extract, caffeine, xanthene derivative, inosit, dextran sulfate derivative, cypress, multiplin, anthocyanidin, organic iodine compound, hardwood leather, shimoké leather, cedar, mannenrou, ginseng, Iyoukidzuta, Chiomukaze, slim agent such as
  • the percutaneously absorbable drug is not particularly limited as long as it is percutaneously absorbable.
  • skin stimulants analgesic anti-inflammatory agents such as salicylic acid and indomethacin
  • central nervous system agents such as a central nervous system agents.
  • analgesic anti-inflammatory agents such as salicylic acid and indomethacin
  • central nervous system agents such as a central nervous system agents.
  • the exothermic composition molded body of the present invention is usually similar to or similar to the sectioned exothermic part, and the exothermic composition part molded body of the present invention is composed of the exothermic composition part molded body and the compressed exothermic composition component. It means both exothermic composition compressed bodies that are shapes (hereinafter, exothermic composition compacts include exothermic composition compressed bodies).
  • the similar shape is a shape in which the shape of the divided heat generation and the shape of the exothermic composition molded body are placed in a planar shape or a three-dimensional shape, and the planar shape is similar.
  • the planar shape and the three-dimensional shape are similar.
  • the peripheral portion of the heat generating portion and the section heat generating portion is usually sealed and the peripheral portion is curved, while the exothermic composition molded body has a linear peripheral portion, Unless both are large and different in shape, such as a circle and a rectangle, the exothermic part and the segmental exothermic part and the exothermic composition molded body are regarded as similar shapes.
  • the similar form is also included in the similar form
  • the mobile water value (0 to 100) of the moldable water-containing exothermic composition of the present invention is preferably 0.01 or more and less than 14 and more preferably 0.1 to 13.5. Yes, more preferably ⁇ or 0.01-: 13, more preferably 0.01-12, still more preferably 0.01--11, still more preferably:!-11, Preferably 3 to: 11. If it exceeds 14, the exothermic properties deteriorate, and if it becomes larger, heat will not be generated unless excess water is removed from the exothermic molded product by water absorption or dehydration after molding.
  • a solid excluding a reaction accelerator, a water-soluble substance, and water The maximum particle size of the component is preferably 1 mm or less, more preferably 500 zm or less, more preferably 300 xm or less, still more preferably 250 zm or less, and even more preferably 200 ⁇ m or less. More preferably 100 ⁇ m or less.
  • the particle size of 80% or more of the water-insoluble solid component excluding the reaction accelerator, the water-soluble substance and water is preferably 300 zm or less, more preferably 25 O xm Or less, more preferably 200 zm or less, still more preferably 150 ⁇ m or less, and still more preferably 90.
  • the particle size of 0 or more is 150 zm or less, more preferably 90% or more of the particle size is 100 ⁇ m or less.
  • the moldability and shape retention of the exothermic composition are improved as the particle size of the water-insoluble solid component excluding the reaction accelerator, the water-soluble substance and water is smaller.
  • the heating element of the present invention is obtained by laminating a heating composition molded body obtained by molding a heating composition on a substrate, further covering with a coating material, and sealing the peripheral edge of the heating composition molded body.
  • the heat generating part of the body is a divided heat generating part heating element composed of a heat generating part in which a plurality of divided heat generating parts are provided by a dividing part.
  • These heating elements may have fixing means in at least a part of the exposed portion.
  • the exothermic composition molded body is a molded body molded from the exothermic composition and having a certain shape, and it is sufficient that it can be laminated on at least the base material and the shape is maintained on the base material.
  • non-water-absorbing films and sheets such as polyethylene, polypropylene, and polyester in an airless environment at 20 ° C and cause an exothermic reaction within 5 minutes.
  • the heat generating element according to the present invention includes a heat generating composition or a heat generating composition containing a heat generating composition and a heat generating composition or a heat generating composition formed body that does not contain a heat generating composition.
  • the section heat generating portion is a heat generating body that houses the heat generating composition or the heat generating composition molded body, the section is a seal section, and the section heat generating section is provided at intervals with the section being an interval.
  • the exothermic composition molded body or the section heat generating portion may have any shape, but it may be a planar shape such as a circle, an ellipse, a football, a triangle, a square, a rectangle, a hexagon, a polygon, a star, a flower, A ring shape etc. are mentioned as an example.
  • disk shape In three-dimensional shape, disk shape, pyramid shape, spherical shape, cubic shape, polygonal pyramid shape, cone shape, frustum shape, spherical shape, parallelepiped shape, cylindrical shape, rectangular parallelepiped shape, polyhedron shape, ellipsoid shape
  • examples include a semi-cylindrical shape, a semi-elliptical cylinder shape, a mortar shape, a cylindrical shape, and an elliptic cylinder shape.
  • these shapes may be provided with rounded corners, the corners may be curved or curved, or the center may have a recess.
  • the shape of the heating element, the shape of the segment heating part, and the shape of the heating part do not have to be the same shape.
  • a heating element having a segment heating part provided in a stripe shape (pleated heating element, pleated sheet, pleated heating element, pleated pack, pleated pad, pleated warmer, thermal pleat, hot pleat, hot pleat, hot cloth,
  • the shape of the segmented heat generating part is a parallelepiped shape that is a flat and elongated rectangle, and is arranged in stripes (stripes) at intervals. Examples include a heating element having a rectangular shape, a heating element having a bowl shape, and a heating element having a foot shape.
  • the shape of the divided heat generating portion is a planar shape and an oval shape, and they are arranged at intervals, and a heating element having a bowl shape or a rectangular heating element is one. Take as an example.
  • Providing the heat generating portions of the present invention in stripes means that a plurality of segmented heat generating portions are provided at intervals (parallel lines) in the form of stripes.
  • One streak is preferably composed of one section heat generating portion.
  • one streak is composed of two or more divided heat generating parts and one or more divided parts.
  • T is T ⁇ 2S, and preferably T ⁇ 2.5S.
  • ⁇ is ⁇ , preferably ⁇ 0.5 ⁇ .
  • T Length of one section heating part
  • stripes consisting of heat-generating sections in parallel stripes (vertical stripes, horizontal stripes, diagonal stripes, vertical wave stripes, horizontal wave stripes, diagonal wave stripes, etc.).
  • the size of the section heat generating portion or the exothermic composition molded body is not limited, but the preferred size is as follows.
  • the diameter is preferably from about 1 mm to about 60 mm, more preferably from 2 mm to 50 mm, still more preferably from 10 mm to 40 mm, and even more preferably from 20 mm to 30 mm.
  • the height is preferably from 0.1 mm to 20 mm, more preferably from 0.3 mm to 20 mm, still more preferably from 0.5 mm to 20 mm, still more preferably from 1 mm to 20 mm, more preferably 1. 5 mm to: 10 mm, more preferably 3 mm to 9 mm, further preferably 4 mm to 8 mm, and further preferably 5 mm to 7 mm.
  • the volume is preferably from about 0.0045 cm 3 to about 20 cm 3 , more preferably from about 0.2 cm 3 to about 11 cm 3 .
  • the width is preferably 0.5 mm to 60 mm, more preferably 0.5 mm to 50 mm, preferably 0.5 mm to 50 mm, more preferably lmm to 50 mm, and even more preferably 3 mm to 50 mm. More preferably, it is 3 mm to 30 mm, more preferably 5 mm to 20 mm, more preferably 5 mm to 15 mm, and still more preferably 5 mm to 10 mm.
  • the height is preferably 0.1 mm to 30 mm, more preferably 0.1 mm to 20 mm, still more preferably 0.1 mm to 10 mm, still more preferably 0.3 mm to 10 mm, More preferably, it is 0.5 mm to 10 mm, more preferably 1 mm to 10 mm, and further preferably 2 mm to 1 Omm.
  • the length is preferably 5 mm to 300 mm, more preferably 5 mm to 200 mm, more preferably 5 mm to 100 mm, and further preferably 20 mm to 150 mm. More preferably, it is 30 mm to 100 mm.
  • the surface area is not limited as long as it has a function as a segmented heat generating portion, but is preferably about 50 cm 2 or less, more preferably about 40 cm 2 or less, still more preferably less than about 25 cm 2 , preferably less than 20 cm 2.
  • the volume of the segmented heat generating part or the volume of the exothermic composition molded body is preferably 0.015 cm 3 to 500 cm 3 , preferably 0.04 cm 3 to 500 cm 3 , and more preferably f 0.04 cm 3 to a 30 cm 3, still more preferably 0. lcm 3 ⁇ 30cm 3, more preferably from lcm 3 ⁇ 30c m 3, still more preferably from 1 ⁇ 25cm 3 ⁇ 20cm 3, more preferably 1 ⁇ 25 cm 3 a to 10 cm 3, more preferably 3 cm 3 ⁇ : a 1 OCM 3.
  • the exothermic composition molded body which is the exothermic composition molded body occupation area when the exothermic composition molded body is accommodated in the segmented exothermic part which is the exothermic composition part accommodating area.
  • the volume ratio between the volumetric product and the volume of the exothermic composition storage area is usually 0.6 to 1, preferably 0.7 to:!, More preferably 0.8 to! And more preferably 0.9 to:!.
  • the segmented heat generating portion is formed in a unified structure having at least two facing surfaces, preferably the surface of the film layer substrate, and at least one surface is oxygen (air) permeable, and the heat generating composition When the molded object is stored,
  • the exothermic composition molded body volume, the space volume, and the section heating part volume have the following relationship.
  • the exothermic composition molded body volume is the volume of the exothermic composition molded body itself
  • the space volume is the volume that is not occupied by the exothermic composition molded body
  • the divided exothermic part volume is the divided exothermic part. Which is the sum of the space volume and the exothermic composition molded body volume.
  • the width of the section is not limited as long as the section heat generating section can be provided at intervals, but is usually 0.1 mm to 50 mm, preferably 0.3 mm to 50 mm. More preferably 0.3 mm to 50 mm, still more preferably 0.3 mm to 40 mm, still more preferably 0.5 mm to 30 mm, still more preferably lmm to 20 mm, still more preferably 3 mm to 10 mm. is there.
  • the base material and the covering material in the present invention are not distinguished from each other by the material structure, and the material on which the exothermic composition molded body is laminated is defined as the base material.
  • Covered The material to be applied is defined as a covering material.
  • the base material and the covering material are preferably made of a packaging material such as a heat-sealable thermoplastic resin film or sheet.
  • a packaging material such as a heat-sealable thermoplastic resin film or sheet.
  • the base material is non-breathable and the covering material is breathable.
  • the base material may be breathable, and the covering material may be non-breathable or forceful, and both may be breathable.
  • packaging materials can be used as the packaging material that contains the exothermic composition and that constitutes the inner bag, which is a storage bag composed of a base material and a covering material.
  • a conventionally known packaging material can also be used for the outer bag which is a non-breathable storage bag for enclosing and storing the heating element.
  • packaging material examples include a breathable packaging material, a non-breathable packaging material, a stretchable packaging material, a non-stretchable packaging material, a water-absorbing packaging material, and a non-water-absorbing packaging material.
  • the packaging material used for the heating element of the present invention is appropriately selected from any packaging materials that have been disclosed in the past, are commercially available, or are used for known disposable warmers or heating elements. Can be used.
  • breathable inner bag means that at least a part of the inner bag has a breathable portion.
  • a substrate or a covering material such as a porous film, a mechanically perforated non-breathable film, paper, a woven fabric, or a nonwoven fabric is generally used in a single layer or multiple layers.
  • a covering material such as a porous film, a mechanically perforated non-breathable film, paper, a woven fabric, or a nonwoven fabric is generally used in a single layer or multiple layers.
  • films include film-like materials such as polyethylene, polypropylene, nylon, and rayon, and breathable sheets laminated with non-woven fabrics.
  • the air permeability of the packaging material of the inner bag is the moisture permeability according to the Rissi method (JIS K-7129A method), preferably 50 to 10, OOOgZm so 24hr, more preferably 100 to 5, OOOgZm SO 24hr, more preferably 100 to 600g / m 2 / 24hr, more preferably 150 to 500g Zm 2 / 24hr.
  • the Rissi method JIS K-7129A method
  • the air permeability is low or the moisture permeability is lower than these ranges, the amount of heat generation tends to be insufficient.On the other hand, if the air permeability is high or the moisture permeability is high, the maximum temperature of the heating element becomes too high and the human body is burned. This is because there is a risk of incurring. Depending on the application, it can be used outside the above range.
  • the non-breathable packaging material is not particularly limited as long as it is non-breathable, but KOP (vinyl chloride).
  • Metals with oxygen and nitrogen such as K-coating (vinylidene chloride coating) film such as biliden coating (biaxially oriented polypropylene film), vapor deposition film (silicon oxide, aluminum oxide, silicon nitride, aluminum nitride, and silicon oxynitride)
  • K-coating (vinylidene chloride coating) film such as biliden coating (biaxially oriented polypropylene film), vapor deposition film (silicon oxide, aluminum oxide, silicon nitride, aluminum nitride, and silicon oxynitride)
  • Single-layer or laminated film e.g., a film on which a compound or a metal such as aluminum is deposited
  • metal compounds include semiconductors
  • styrene butadiene styrene block copolymer polymer SBS
  • a synthetic rubber such as urethane, 0.88 to 0. Density force of 900 g / cm 3 even amorphous Orefuin system selected Examples include a film made of resin as a raw material, an apertured foam film, a net, a foamed foam sheet, and an extensible nonwoven fabric.
  • a non-extensible material may be used with imparting extensibility.
  • a method of cutting a cut line or a circle can be used.
  • a fixing means may be provided at least in part on the exposed surface of the inner bag.
  • a part having a thermal package for a joint peripheral part or a heating part is fixed to a required part.
  • Removable fixing means are preferred.
  • the adjustment fixing means may be further constituted by a combination of a hook-and-loop fastener and an adhesive layer.
  • the separator can be overlapped with the fixing means as protection until it is used.
  • the separator may be provided with a cut or the like such as a split so that the separation can be facilitated.
  • At least a part of the pressure-sensitive adhesive layer or the exposed portion of the heating element includes a water retention agent, a water-absorbing polymer, a pH adjuster, a surfactant, an organic silicon compound, a hydrophobic polymer compound, a pyroelectric material, and an antioxidant.
  • it may contain at least one selected from the group consisting of an aggregate, a fibrous material, a moisturizing agent, a functional substance or a mixture of these components.
  • the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer is not limited as long as it has an adhesive force necessary to adhere to the skin or clothes. Solvent type, aqueous type, emulsion type, hot melt type, reactivity, sensitivity Various forms such as a pressure system, a non-hydrophilic pressure-sensitive adhesive, a mixed pressure-sensitive adhesive, a hydrophilic pressure-sensitive adhesive (Giel etc.) are used. As the pressure-sensitive adhesive, known pressure-sensitive adhesives used for warmers and heating elements can be used.
  • the pressure-sensitive adhesive layer may be air permeable or non-air permeable. What is necessary is just to select suitably according to a use. As for air permeability, it is only necessary to have air permeability as a whole.
  • a pressure-sensitive adhesive layer in which the pressure-sensitive adhesive is partially present and there is a portion in which the pressure-sensitive adhesive is not present partially and the entire region is breathable can be given as an example.
  • the pressure-sensitive adhesive layer is partially printed by printing or transferring the pressure-sensitive adhesive.
  • the non-laminated part is used as a ventilation part, and the adhesive is moved in a two-dimensional direction, such as moving in one direction or moving in a zigzag while drawing a circle in a string
  • the adhesive is moved in a two-dimensional direction, such as moving in one direction or moving in a zigzag while drawing a circle in a string
  • the adhesive that constitutes the adhesive layer include a method in which the gap between the thread-like adhesives has air permeability or moisture permeability, a method of foaming the adhesive, or a layer formed by a melt blow method.
  • known ones conventionally used can be used.
  • a copolymer containing an aromatic butyl polymer such as styrene, and an alkyl or alkenyl (meth) acrylate, such as butyl (meth) acrylate, stearinole (meth) acrylate, and styrene is a mixture with styrene resin such as (meth) Styrenic pressure-sensitive adhesives, styrene-butadiene-styrene block copolymers (SBS), styrene-isoprene-styrene block copolymers (SIS), or their hydrogenated types (SEBS, SIPS) Examples thereof include hot melt adhesives and acrylic adhesives.
  • polyacrylic acid such as polyacrylic acid, sodium polyacrylate, carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, and other hydrophilic polymers such as polyacrylic acid, polyacrylate, and cellulose derivatives.
  • hydrophilic pressure-sensitive adhesive composed mainly of a sticky agent.
  • the temporary sealing portion is formed through an adhesive layer, but the adhesive constituting the adhesive layer is a layer formed of a polymer composition having tack at normal temperature, and there is no limitation as long as it can be heat sealed after temporary attachment.
  • the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer used for temporary attachment the pressure-sensitive adhesive in the pressure-sensitive adhesive layer can be used.
  • Non-hydrophilic adhesive is preferred.
  • the melting point of the base polymer of the pressure-sensitive adhesive having good compatibility with the heat sealing material constituting the heat seal layer is preferably equal to or lower than the melting point of the heat seal material.
  • a hot melt adhesive is preferable for the hot melt adhesive.
  • the heat seal material is an olefin-based material
  • an example of a preferable example of the pressure-sensitive adhesive is an olefin-based pressure-sensitive adhesive.
  • the method of providing the pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer, and the adhesive layer may be provided on the entire surface, may be provided only in an area necessary for fixing, or may be provided partially or intermittently.
  • Various shapes such as a mesh shape, a stripe shape, a dot shape, a lattice shape, a stripe shape, and a belt shape can be given as examples. In particular, those provided in a net shape (spider web) by the melt blow method are useful.
  • the adhesive strength can be easily adjusted by changing the arrangement density. Air permeability can be secured between the tempered sheets.
  • the pressure-sensitive adhesive layer is a hydrophilic pressure-sensitive adhesive layer
  • the hydrophilic pressure-sensitive adhesive layer and the exothermic composition If there is a difference in moisture retention between the molded body and the molded body, the moisture will move through the packaging material such as the base material between them, causing inconvenience for both. This happens especially during storage. In order to prevent this, it is preferable that the intervening packaging material has a water vapor transmission rate of 2 gZm 2 Zday or less, at least according to the Lissy method.
  • the moisture permeability of the moisture-proof packaging material provided between the exothermic composition molded body and the hydrophilic pressure-sensitive adhesive layer is within the range that does not affect the heat generation performance. There is no limit if the movement of minutes can be prevented, but the moisture permeability by the Lissy method (Lyssy method) is preferably 2 g / m 2 / day or less, more preferably 1.0 g / m 2 / day or less. Yes, more preferably 0.5 g / m 2 / day or less, and still more preferably 0.01 to 0.5 g / m 2 / day.
  • the values are under the conditions of 40 ° C and 90% RH under atmospheric pressure.
  • the moisture-proof packaging material can be used as a base material or a coating material, or can be laminated alone on a base material or a coating material.
  • the pressure-sensitive adhesive layer is covered with a peelable member until use so as not to directly contact the inner surface of the outer bag.
  • the peelable member should be a thin material having an exfoliating property that enables at least one attachment / detachment to / from the adhesive layer.
  • a substrate treated with a release agent is preferred.
  • films, sheets, paper, non-woven fabrics, composite materials of these, etc. such as polypropylene, polyethylene, polybutyl alcohol, and PET are used.
  • release agent silicone-based, fluorine-based, isocyanate-based and the like are preferable. These release agents (release agents) can be applied to a packaging material such as a base material by a known method.
  • Two or more, preferably three or more, more preferably four or more, multiple heating sections having a plurality of section heating sections according to the present invention are provided with cuts in at least a part of the region other than the section heating section. You can take it.
  • the incision in the present invention is a through notch constituted by a connecting portion and an incision that are intervals of the incision.
  • the tip of the cut may not be in contact with the side of the heating element, or the tip of at least one cut of the cut may be in contact with at least one side of the heating element.
  • the installation location and number of cuts in the heating element of the present invention can be provided in any number other than the section heating section, but the section section is preferred as the installation area.
  • the cut provided in the heating element having the separator may be a cut that penetrates the separator or a cut that does not penetrate the separator.
  • the shape, type and size (length, width, etc.) of the incision the shape, type, size (length, width, etc.) and notch of the joint, and notch (V notch, U notch, I notch, etc.) There are no restrictions, and any combination or repeated combination of them can be used.
  • connection part between cuts is shorter than a cut.
  • the at least one notch has at least one notch (V notch, U notch,
  • I notch etc.
  • I notch may or may not have contacts.
  • incisions include staggered incisions, perforations (such as perforated perforations), V-notched incisions, staggered incisions with V-notches, perforated with V-notches (can be hand-cut with V-notches)
  • perforations such as perforated perforations
  • V-notched incisions staggered incisions with V-notches
  • V-notches staggered incisions with V-notches
  • V-notches can be hand-cut with V-notches
  • An example is a perforation).
  • the staggered cuts When the staggered cuts are stretched, the staggered cuts can be extended or contracted by deforming the shapes of a plurality of cuts penetrating in the thickness direction.
  • the staggered arrangement means that the incisions can be changed so that the incision can be deformed into a mesh shape so that it can be stretched (stretched) even with packaging materials such as non-stretchable materials and non-stretchable materials.
  • it is a staggered arrangement that overlaps somewhere, and unlike a net that has been laced with a string, etc., the joint is integral, and the mesh is expanded while being spread by a certain notch length. Can be formed.
  • the staggered cuts are preferably provided in a direction substantially perpendicular to the direction in which expansion and contraction is desired.
  • the number of cuts, the number of rows of cuts, and the like can be appropriately selected and used.
  • the length, the longest diameter, or the longest side of the notch is not limited.
  • the size of the mesh shape after extending the cut is not limited.
  • the shape of the cut is not limited, but examples of the shape include a straight line, a rhombus, a hexagon, a shape of an ellipse, an ellipse, a circle, and an X shape in plan view.
  • the extensibility of the present invention means that, when an external force is applied, at least a part is longer than the length before the external force is applied in at least the direction in which the external force is applied.
  • the length does not matter. Extensibility includes elasticity.
  • the elongation rate is not limited as long as it exceeds 1, but the force depending on the application is preferably 1.005 to 10, More preferably ⁇ MA 1. 01 to: 10, more preferably ⁇ or 1. 01 to 5, more preferably ⁇ or 1. 01 to 5, more preferably ⁇ or 1. 01 to 3. More preferably, ⁇ 1 ⁇ 01 to 2, more preferably ⁇ or 1. 02 to 2, more preferably ⁇ or 1. 03 to 2, more preferably ⁇ or 1. 04 to 2, and further Preferably it is 1.05-2.
  • the alternate cut usually has a function of imparting extensibility and stretchability.
  • the stretchability of the present invention means that when an external force is applied, it stretches, and when the external force is removed, it becomes shorter than the length when stretched.
  • the degree of shortening is not limited, but if the degree of shortening is displayed with a shortening rate, if the shortening rate exceeds 1, there is no limit, but the power depending on the application is preferably 1.005 to 10 More preferably, ⁇ or 1.01 to: 10, more preferably ⁇ or 1. 01 to 5, more preferably ⁇ or 1. 01 to 5, more preferably ⁇ or 1. 01 to 3. More preferred ⁇ MA 1. 01 to 2, more preferred It is preferably ⁇ MA 1.02-2, more preferably ⁇ MA 1.03-2, more preferably ⁇ MA 1.04-2, and more preferably 1.05-2.
  • the shortening rate means a quotient obtained by dividing the length when extended by the length after removing the external force.
  • the shortening rate of the heating element the length when the heating element is extended / the length of the heating element after the external force is removed.
  • tensile strength of the stretchable or stretchable heating element of the present invention there is no limitation on the tensile strength of the stretchable or stretchable heating element of the present invention, but a preferable example is 3N / 50 mm or more.
  • a heating element package in which two or more heating elements are folded and stored in the outer bag which is the non-breathable storage bag of the present invention, is useful for storage and transportation. As long as the outer bag is non-breathable, it may be laminated without any other restrictions.
  • the packaging material of the airtight outer bag that accommodates the heating element should be substantially impermeable to air (oxygen).
  • the non-breathable material or a conventionally known packaging material can be used.
  • the hermetic outer bag is formed by sealing around the wrapping material so as not to substantially transmit air (oxygen).
  • air oxygen
  • Known sealing methods can be used. Usually, heat sealing is performed.
  • the manufactured heating element is interposed between two non-breathable films or sheets, and the two films or sheets are attached to the heating element at the same time as or after this intervention.
  • An example is a heating element package in which the two films or sheets are sealed in a peripheral portion exceeding the size of the heating element at the same time after punching or after punching.
  • At least one part of the exposed portion of the heating element may be temporarily attached to the inner surface of the outer bag, which is a non-breathable storage bag (hereinafter referred to as outer temporary attachment).
  • the separator is also handled as a heating element.
  • a pressure-sensitive adhesive constituting a removable weak pressure-sensitive adhesive layer used for external temporary attachment (hereinafter, this pressure-sensitive adhesive is referred to as " There is no limitation as long as the heating element can be held in the packaging material until the folding operation with weak adhesive force is completed.
  • An example of a removable adhesive that can be used is a weak adhesive.
  • hot-melt adhesives there are hot-melt adhesives, emulsion adhesives, solvent-based adhesives, etc.
  • acrylics that have a high glass transition temperature are preferred, and the ratio of acrylic acid components is increased.
  • rubbers those containing a high melting point tack fire are preferred.
  • hot melt adhesives particularly hot melt adhesives (polypropylene adhesives, polyethylene adhesives, ethylene propylene copolymer adhesives, etc.) are preferred.
  • thermoplastic elastomer thermoplastic elastomer, etc.
  • thermoplastic resin thermoplastic resin
  • base polymer may be used alone or in combination.
  • thermoplastic elastomer of the base polymer in the hot melt adhesive include styrene isoprene, styrene block copolymer (SIS), and styrene butadiene-styrene block copolymer.
  • SBS Styrene / Ethylene / Butylene / Styrene Block Copolymer
  • SEBS Styrene / Ethylene / Butylene / Styrene Block Copolymer
  • SEPS Styrene / Ethylene / Propylene Block Copolymer
  • SEP Styrene / Ethylene / Propylene Block Copolymer
  • Styrenic thermoplastic elastomers styrenic block copolymers; eg, styrene-containing styrene block copolymers containing 5% by weight or more of styrene); polyurethane thermoplastic elastomers; polyester thermoplastic elastomers; polypropylene and EPT (ternary system) Ethylene-propylene rubber) Examples thereof include a blended thermoplastic elastomer such as a polymer blend.
  • thermoplastic resin of the base polymer in the hot-melt pressure-sensitive adhesive examples include polyolefin resins, vinyl acetate resins, polyester resins, styrene resins, acrylic resins, polyamide resins, and the like. It is done.
  • a polyolefin resin Is for example, an ethylene-unsaturated copolymer such as an ethylene-vinyl acetate copolymer (EVA); an ethylene-acrylic acid copolymer (EAA), an ethylene-methacrylic acid copolymer (EMAA), etc.
  • polymers ethylene-butyl alcohol copolymers, etc.
  • polyethylene low density polyethylene, linear low density polyethylene, meta-catalyzed polyethylene, medium density polyethylene, high density polyethylene, etc.
  • polypropylene, ⁇ -olefin Copolymer ethylene propylene copolymer, ethylene-butene monocopolymer, propylene-butene Polyolefins such as polypropylene copolymers; polypropylene modified resins and the like.
  • butyl acetate resin examples include poly (vinyl acetate), vinyl acetate- (meth) acrylic acid ester copolymer, vinyl acetate vinyl ester copolymer, vinyl acetate-maleic acid ester copolymer, and the like. It is done.
  • thermoplastic elastomer particularly, a polyolefin-based thermoplastic elastomer or a styrene-based thermoplastic elastomer
  • the adhesives such as emulsion adhesives and solvent-based adhesives include acrylic adhesives, rubber adhesives, polyester adhesives, urethane adhesives, polyamide adhesives, and epoxy adhesives.
  • adhesives such as bulle alkyl ether adhesives, silicone adhesives, fluorine adhesives, etc., and adhesives in their respective forms (eg, emulsion form, solution form, etc.).
  • the adhesive may be a cross-linking agent (for example, a polyisocyanate-based cross-linking agent, an alkyl etherified melamine, depending on the type of the pressure-sensitive adhesive).
  • a cross-linking agent for example, a polyisocyanate-based cross-linking agent, an alkyl etherified melamine, depending on the type of the pressure-sensitive adhesive.
  • tackifiers for example, rosin derivative resins, polyterpene resins, petroleum resins, phenol resins, etc.
  • plasticizers for example, rosin derivative resins, polyterpene resins, petroleum resins, phenol resins, etc.
  • fillers for anti-aging agents and the like.
  • the adhesive strength is not limited as long as the heating element and the packaging material can be adhered until the folding operation is completed, but preferably 180 degree peel strength JISZ-02 37) is from 0.001 to 0.9 kg / 25 mm, more preferably from 0.001 to 0.5 kg / 25 mm, and still more preferably from 0.001 to 0.1 kg / 25 mm, More preferably, it is 0.005 to 0. lkg / 25mm, more preferably 0.1 to 100gZ25mm, more preferably ⁇ 0.:! To 50g / 25mm, more preferably ⁇ 0. ! ⁇ 30g / 25mm, more preferably ⁇ 0.:! ⁇ 25gZ25mm.
  • the coating thickness is not particularly limited, but is preferably 3 mm or less, more preferably 0.1 x 3 to 3 mm, and still more preferably 0.1 x 2 to 2 mm. Is from 0.1 / im to: 1 mm, more preferably from 0.01 to 500 xm, more preferably from 0.1 to 100 ⁇ , and even more preferably from 0.1 to 40/1. 111, preferably 0.1 to 40 xm, more preferably 0.:! To 30 / im, more preferably:! To 30 ⁇ m, more preferably 5 to 30 xm, more preferably 5 to 30 / im.
  • a known forming method can be employed. Examples thereof include a hot melt coating method and a solution type coating method. Moreover, it can be in any form such as a whole surface, a partial shape, a solid shape, a net shape, a rod shape, a stripe shape, and a polka dot shape.
  • the separator when a separator is provided on the heating element, it is preferable to provide the separator so as not to separate from the heating element.
  • the heating element of the present invention is a heating element with a separator, the separator is included in the exposed portion of the heating element.
  • the heating element of the present invention can be obtained in various shapes, thicknesses, and temperature zones, it is not for normal body warming, for joints, for facial use, for eyes, for slimming, for drip solution heating / warming.
  • thermal compresses for medicine warmers, for neck, for waist, for masks, for gloves, for heels, or for alleviating symptoms such as shoulder pain, muscle pain, or physical pain, for cushions, during surgery It can be used for various purposes such as warming of the human body, warming sheet, transpiration, aroma, abdomen, transpiration insecticide, and medical treatment.
  • machines can be used for warming pets and other purposes.
  • the easy water value is a value indicating the amount of excess water that can move out of the composition in the exothermic composition. This easy water value will be described.
  • Place a template with a length of 150 mm x width of 100 mm with a hollow cylindrical hole with an inner diameter of 20 mm x height of 8 mm in the center of the paper place a sample near the hollow cylindrical hole, and place the push-in plate on the template. The sample is pushed into the hollow cylindrical hole while pushing the sample, and the sample is worn along the template surface (indentation molding).
  • a non-water-absorbing 70 xm polyethylene film is placed so as to cover the hole, and a stainless steel flat plate with a thickness of 5 mm x length 150 mm x width 150 mm is placed thereon so that no exothermic reaction occurs. And hold for 5 minutes. After that, take out the paper and follow the bleed path of the water or aqueous solution along the radial line as the distance from the circumference that is the edge of the hole of the hollow cylinder to the tip of the bleed. Read with. Similarly, read the distance from each line and obtain a total of 8 values. Each of the 8 values (a, b, c, d, e, f, g, h) read is taken as the measured moisture value.
  • the arithmetic average of the eight measured moisture values is taken as the moisture straightness (mm) of the sample.
  • the moisture content for measuring the true moisture straightness is the blended moisture content of the exothermic composition corresponding to the weight of the exothermic composition having an inner diameter of 20 mm and a height of 8 mm, and only water corresponding to the moisture content is used. Measure in the same way, and calculate the same value as the true water straightness (mm). The value obtained by dividing the moisture value by the true Minamata and multiplying it by 100 is the mobile water value.
  • the moisture content for measuring the true moisture value is calculated by calculating the moisture content of the exothermic composition from the moisture content measurement using an infrared moisture meter of the exothermic composition. Based on this, the amount of water necessary for the measurement is calculated, and the true water value is measured and calculated from the amount of water.
  • the exothermic composition having a mobile water value of less than 14 is placed with a non-water-absorbing 70 xm polyethylene film so as to cover the hole, and further, a thickness of 5 mm x length 150 mm x width 150 mm. If a windshield is put on instead of placing a stainless steel flat plate, the exothermic composition of the present invention undergoes an exothermic reaction during measurement, making measurement impossible.
  • the true moisture value is invalid regardless of the true moisture value. Even if it is bright, the exothermic water value of the exothermic composition is 0.
  • the exothermic composition part molded body of the present invention is molded by a mold-forming method such as a mold-through molding method containing a moldable water-containing exothermic composition, and a method for producing the exothermic composition molded body of the present invention is as follows.
  • mold forming methods include mold-through molding methods such as mold forming methods. Mold-forming exothermic compositions formed from a moldable hydrous exothermic composition by a molding method using mold-through molding methods. A body or a plurality of exothermic composition molded bodies are laminated on a substrate at intervals.
  • the heat generating part or the divided heat generating part is provided by covering with a covering material and sealing the peripheral part of the exothermic composition molded body.
  • the peripheral edge of the heat generating part is sealed (crimp seal or thermo-compression seal or heat seal).
  • the section heat generating section is composed of a plurality of parts, and each section heat generating section is separated by a section that is a heat seal section, forming a collective force heat generating section of the section heat generating section, and a peripheral portion of the section heat generating section.
  • the periphery of the heating element is sealed (pressure seal, thermocompression seal, heat seal, etc.). Heat sealing is particularly preferable
  • a heating element is manufactured through a cutting process or the like.
  • the sealing step, the cutting step, etc. may be used by appropriately selecting from conventional methods and apparatuses.
  • the mold-through molding method is to produce a heat-generating composition molded body by using a punching die, molding a heat-generating composition, and laminating a punch-shaped heat-generating composition molded body on a substrate. It is a method to do.
  • the punching die is a die having a through hole having a desired shape and thickness.
  • a drum-shaped forming device in which the through-hole is provided on the rotating surface of a hollow drum-like rotating body, a strut-conveyor-like forming device using a strut-conveyor-like rotating body provided with a plurality of struts having the through-hole, etc. Is given as an example.
  • a rotary punching die is used, and a molding machine for laminating a die-shaped exothermic composition molded body on a long base material and covering it with a long covering material.
  • a rotary sealer that can seal the surrounding part of the section and the base material and coating material (heat seal, pressure seal, heat seal, etc.), and the exothermic composition through the seal
  • An example is a continuous forming method in which the necessary portions of the periphery and the section of the molded body are heat sealed and sealed.
  • the squeeze molding method is a method for producing a exothermic composition molded body by filling the exothermic composition into a squeeze mold having recesses and laminating the molded exothermic composition molded body on a substrate. It is.
  • the punching die is a die having a recess having a desired shape and thickness.
  • An example is a heat generating composition molded body manufacturing apparatus in which a concave portion is provided on the outer surface of a drum-shaped rotating body or a hollow drum-shaped rotating body.
  • a molding machine for laminating a heat generating composition molded body on a long base material by covering the concave portion with a drum-shaped rotating body and transferring it to the base material, and covering it with a long covering material are used.
  • a rotary sealer that can seal the target section and the periphery of the base material and coating material (heat seal, pressure seal, thermocompression seal, etc.)
  • heat-generating composition molding through the seal An example is a continuous forming method in which the necessary parts of the twill part and the part of the body are heat sealed and encapsulated.
  • the heating element 1 shown in the plan view of Fig. 1 (a) and the cross-sectional view of Fig. 1 (b) uses a non-breathable base material 4 in which an adhesive layer 7 and a separator 9 are provided on a polyethylene film.
  • a moldable surplus water exothermic composition with a mobile water value of 8 was prepared by mixing iron powder, activated carbon, wood powder, water-absorbing polymer, slaked lime, sodium sulfite and 11% saline.
  • the section heat generating section 3 is configured such that at least a part thereof has air permeability so that oxygen can be supplied to the internal heat generating composition molded body 2.
  • Covering material 5 has air permeability, and a porous film is placed on the inner side of the nonwoven fabric sheet.
  • a non-breathable base material made of a non-breathable synthetic resin film is used as the base material 4.
  • As the breathable coating material a non-woven sheet with a synthetic resin film laminated on a wrapping material can be used.
  • the heating element 1 of the present embodiment is formed in a substantially rectangular shape in a plan view, and in this rectangle, four divided heat generating portions each having a substantially rectangular shape in a plan view, on both sides of the central section 12 '. 3 are arranged symmetrically. Further, the corners of the heating element 1 are cut off in an R shape, and the corners of the section heating unit 3 are also formed in an R shape.
  • Each heating section 3 of the heating element 1 is formed in a bilaterally bulging shape that bulges toward the non-breathable base material 4 and the breathable coating material 5. That is, although there is a difference in bulging, as shown in the sectional view of FIG. 2, the divided heat generating section 3 includes a plurality of, for example, four, substantially surrounding upper and lower surfaces facing each other and surrounding them.
  • the side surface made of the breathable coating material 5 and the side surface made of the non-breathable base material 4 constitute the side surface of the divided heat generating portion 3.
  • each section heat-generating part 3 and each heat-generating composition molded body 2 inside thereof have substantially the same thickness over substantially the entire flat direction. Also, the rising force from the upper surface side of the side surface made of the breathable coating material 5 and the rising degree from the lower surface side of the side surface made of the non-breathable base material 4 are not necessarily the same.
  • the thickness of the segment heating part 3, that is, the thickness of the heating composition molded body 2 is substantially constant in the flat direction from the central part to the peripheral part.
  • the peripheral portion does not become a wedge shape and is substantially constant in the flat direction. Since the thickness is maintained, the heat generation failure due to the lack of the exothermic composition molded body 2 at the peripheral portion does not occur.
  • the exothermic composition molded body 2 inside the section heating section 3 is pushed and widened in the flat direction. The greater the acting force, the more uniform the thickness of the segmented heat generating part 3 in the flat direction.
  • An adhesive layer 7 made of an acrylic adhesive is provided on the outer surface side of the non-breathable substrate 4 of the heating element 1.
  • the heating element 1 is formed such that the width of the central section 12 ′ is greater than 0.5 times the sum of the thicknesses of the section heating sections Al and B 1 on both sides.
  • Fig. 2 is an enlarged view of the folded part.
  • the folded portion is in the center, and the width (C) of the folding portion 12 'is 12mm.
  • the thickness of the divided heating portions Al and B1 on both sides of the dividing portion 12' is as described above.
  • the sum (H + L) of each is 5mm, which is larger than 0.5 times the sum of 10mm.
  • the heating element 1 folded along the central section 20 is not crushed when the segment heating sections Al and B1 are pulled toward the center.
  • the thickness of the segment heat generating part 3 is kept substantially constant from the central part to the peripheral part. There will be no heat generation failure due to 2A shortage.
  • FIG. 3 (a) is a plan view of the heating element package of the present invention
  • FIG. 3 (b) is a cross-sectional view thereof. It is formed by enclosing the heating element 1 in an outer bag 15 which is a non-breathable storage bag and storing it in the space of the outer bag 15 in a folded state.
  • a notch 16 serving as an opening means is provided at the end of the seal portion 21 of the outer bag, which is a non-breathable storage bag, corresponding to the storage space for the heating element.
  • the notch 16 is not in contact with the outer side of the outer bag 15 and is provided in the seal portion of the outer bag 15. It should be provided in contact with the outer side of the outer bag 15 in the inner area of the seal part of the outer bag 15.
  • the heating element 1 generates heat so that the breathable coating 5 is on the inside and the non-breathable substrate 4 is on the outside, and the separator 9 is on the outside so that the outside of the adhesive layer 7 is covered tightly. Folded in half along the section 12 'at the center of body 1. Further, the heating element 1 and the outer bag 15 are partly attached to each other and are temporarily attached 22 by an external temporary attachment type adhesive 23.
  • the outer bag 15 has a predetermined width between adjacent edges of the peripheral portion excluding the heating element 1. By sealing in an airtight manner, it is sealed in a bag shape.
  • the heating element 1 is enclosed in a folded state, even if the heating element 1 is large, the heating element 1 is very compact in a packaged state, and has an advantage of excellent portability.
  • the surface area of the heating element 1 is almost halved, the number of members can be reduced and the cost can be reduced as compared with a conventional disposable body warmer with little change in heat generation characteristics over time. There is also an advantage that it can be reduced and it is friendly to the global environment.
  • the packaging material used for the outer bag which is a non-breathable storage bag, can use the non-breathable packaging material and the like. It is desirable to form the above notches (I-notch, U-notch, V-notch, etc.) so that the user can easily tear and open the outer bag. Moreover, what is necessary is just to arrange
  • the outer bag 15 which is a non-breathable storage bag, is formed of a non-breathable sheet and covers the periphery of the heating element 1 with a heat seal or the like in an airtight manner until the heating element 1 is used. Exothermic The supply of oxygen to the molded product is cut off.
  • the outer bag 15 may be a so-called easy peel film that, when sealed, becomes a soft-adhesive state that can be easily peeled off.
  • a known material such as a non-breathable synthetic resin film coated with an easy peel styrene resin or the like can be appropriately used.
  • the outer bag 15 is formed in a shape that is slightly larger than that of the heating element 1 according to the folded shape of the heating element 1 (here, substantially rectangular).
  • FIG. 4 is a plan view of a heating element according to another example of the present invention.
  • the section heating section 3 is circular and can be folded at the center.
  • FIG. 5 (a) shows that a striped adhesive layer 7 is provided on the ventilation surface of the heating element 1 having two divided heating parts 3 across the dividing part 12 'which is a seal part at the center.
  • FIG. 2 is a plan view of a heating element 1 obtained. At the end of the seal portion 21 of the outer bag 15, a notch 16 that is an opening means is provided corresponding to the storage space for the heating element.
  • the notch 16 is an inner region of the seal portion of the outer bag 15 and is provided in contact with the outer side of the outer bag 15. It is.
  • the outer bag 15 may be provided in the seal portion of the outer bag 15 without contacting the outer side of the outer bag 15. This is a type of heating element 1 that is used with the adhesive layer side in contact with clothes and the surface on which the adhesive layer 7 is not provided in contact with the body.
  • FIG. 5B shows a cross-sectional view of the pressure-sensitive adhesive layer 7 provided with a separator 9.
  • FIG. 5 (c) is a plan view of the heating element package 19 which is folded into two at the center with the air-permeable surface inside and sealed in the outer bag 15 which is a non-air-permeable storage bag.
  • Figure 5 (d) is a cross-sectional view of W_W.
  • the heating element 1 in Fig. 6 (a) is an example of the heating element 1 formed by enclosing the heating element 1 in an outer bag 15 in a folded state.
  • a notch 16 is provided in the seal portion 21 of the outer bag 15 which is a non-breathable storage bag.
  • the air-permeable pressure-sensitive adhesive layer 8 on the ventilation surface is provided with a separator 9, and a flat shape in which four section heat generating sections 3 are provided on both sides of the central section 12 'at an interval.
  • the width of the bent portion 12 ' is 11 mm
  • the width of the section heating section 3 on both sides of the section heating section 3 is an uneven heating element 1.
  • the thickness is 7 mm each
  • the width of the central section 12 ′ is 0.64 times the sum of the thickness of the section heating sections 3 on both sides.
  • Fig. 6 (b) is a cross-sectional view of V-V.
  • FIG. 6 (c) is a plan view of the heating element package in which the separator 9 is folded and the outer bag 15 is enclosed along the central section 12 ′.
  • Figure 6 (c) is a cross-sectional view of U-U.
  • the adhesive layer 7 is provided at both end portions on the non-venting surface side
  • the separator 9 is provided on the entire non-venting surface side
  • the width of the section 12 ′ is 15 mm
  • the thickness of the section heating section 3 on both sides of the section 12 ′ is 6 mm
  • the width of the center section 12 ′ is the section heat generation on both sides. 1.25 times the sum of the thicknesses of part 3.
  • FIG. 7 (c) shows a cross section of the heating element package enclosed in the outer bag, folded along the central section 12 'with the airflow side facing inward and the non-airflow side separator 9 facing outward.
  • FIG. 8 (a) is a plan view of the heating element 1 in which the air conditioning material 6 made of polyethylene film is fixed by an adhesive layer at the top of the section heating unit 3 and both ends in the longitudinal direction of the heating element 1.
  • each heating section 3 is 1.5mm thick x 70mm long x 10mm wide, each section 3 is 30mm wide, and the width of the central section 12 ' More than 2.0 times half the sum of the thickness of the heat generating part 3.
  • FIG. 8B is a cross-sectional view of the heating element package in which the heating element 1 is folded in three and enclosed in the outer bag 15.
  • the air flow adjusting material means that a space is formed in at least a part of the peripheral edge of the section heat generating portion by covering the section heat generating portion with the air flow adjusting material. It adjusts the temper and also provides a heat retaining effect.
  • the packaging material used for the base material and the covering material can be used. Any packaging material that is commercially available or is used for known disposable warmers or heating elements can be selected as appropriate.
  • the air-conditioning material of the present invention is not limited if the air flow to the segmented heat generating part is adjusted, but the air-conditioning material is not limited to the heat-generating part or the heating element body provided with the air-adjusting material.
  • the air permeability is lower than the air permeability of the air surface.
  • Examples include a porous film, a nonwoven fabric, a breathable material such as a film or sheet having holes formed by perforation, and a composite such as a laminate including at least one of them as part of constituent members. Particularly preferred are films, sheets and composites provided with holes by perforation.
  • an area (ventilation hole) having a larger air permeability than the heat generation part or the ventilation surface (ventilation hole) of the heating element is provided to increase local air permeability. May have a substantially non-breathing force or may keep air permeability lower than the air permeability of the ventilation surface of the divided heat generating portion, and may control the flow passage and flow of a gas such as air.
  • the air-conditioning material is not limited as long as it is a plastic film or sheet having a non-breathable city area and a breathable area.
  • the material constituting the air-conditioning material has conventionally been a heating element or chemical force ( The materials used in breathable storage bags (inner bags) and non-breathable storage bags (outer bags)) and the materials used in the base materials, covering materials, and outer bags described in the specification of the present invention can be used. Therefore, it may be selected as appropriate.
  • Non-breathable films, sheets, and laminates containing them are useful films, sheets and laminates comprising vents provided by perforation.
  • a plastic film or sheet having vent holes by perforation obtained by perforating a non-breathable plastic film or sheet is an example.
  • the air permeability can be adjusted relatively easily by adjusting the size of the needle hole.
  • a plastic film or sheet with a smooth outer surface is used, when the vent hole is covered with another non-air-permeable plastic film or sheet, the plastic film or sheet is tightly bonded tightly to the periphery of the vent hole. can do.
  • the non-breathable packaging material can be given as an example.
  • a non-breathable air-blocking sheet made of a non-breathable packaging material or the like may be fixed with a pressure-sensitive adhesive or the like in a breathable region such as a vent hole of the air conditioning material.
  • air (oxygen) enters the inside of the separate heat generating part from the ventilation surface during storage and transportation. Storage that does nothing can prevent heat generation during transportation.
  • air permeability can be secured by removing the air-blocking sheet from the air-conditioning material during use, it is possible to generate heat during normal use.

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  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

L'invention concerne un élément de chauffage emballé qui possède des propriétés de chauffage améliorées et qui élimine un gaspillage de ressources afin d'atteindre une réduction des coûts. L'invention concerne également un élément de chauffage (1) caractérisé en ce qu'il comprend deux ou plusieurs parties de chauffage séparées (3) formées par revêtement d'une composition de chauffage (2) qui génère de la chaleur lorsque les matériaux d'emballage (4 et 5) sont en contact avec l'air de sorte que les parties de chauffage séparées (3) fassent toutes deux saillie au niveau des côtés avant et arrière, ces parties de chauffage (3) étant séparées l'une de l'autre par des parties de séparation (12). Il est en outre caractérisé en ce qu'il possède une constitution dans laquelle au moins une partie de chaque partie de chauffage séparée (3) possède une perméabilité à l'air et l'élément de chauffage (1) peut être plié au niveau d'une partie de séparation donnée (12), la largeur de la partie de séparation (12) où le pliage est possible est supérieur à 0,5 fois la somme des épaisseurs des parties de chauffage séparées (3) situées sur les deux côtés de la partie de séparation (12).
PCT/JP2007/050326 2006-01-13 2007-01-12 Élément de chauffage et élément de chauffage emballé WO2007080969A1 (fr)

Applications Claiming Priority (2)

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JP2006006816A JP2009082156A (ja) 2006-01-13 2006-01-13 発熱体及び発熱体包装物
JP2006-006816 2006-01-13

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2011030818A1 (fr) * 2009-09-09 2011-03-17 小林製薬株式会社 Dispositif de traitement
US20160242960A1 (en) * 2013-09-30 2016-08-25 Kobayashi Pharmaceutical Co., Ltd. Disposable body warmer

Families Citing this family (2)

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JP6619633B2 (ja) * 2015-11-30 2019-12-11 花王株式会社 温熱具の製造方法
KR20210095073A (ko) * 2020-01-22 2021-07-30 에버웰테크놀로지 주식회사 발열 매트

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JP2000189452A (ja) * 1998-12-28 2000-07-11 Kao Corp 加温具
JP2003038542A (ja) * 2001-07-30 2003-02-12 Ferikku Kk 発熱体包装物
JP2003205556A (ja) * 2002-01-11 2003-07-22 Maikooru Kk 化学カイロ用収納袋とその製造方法並びにこの製造方法を実施するためのシール型、製造装置並びに発熱体
JP2005304613A (ja) * 2004-04-19 2005-11-04 Toa Kiko Kk 使い捨てカイロ、その製造方法及び製造装置

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JP2000189452A (ja) * 1998-12-28 2000-07-11 Kao Corp 加温具
JP2003038542A (ja) * 2001-07-30 2003-02-12 Ferikku Kk 発熱体包装物
JP2003205556A (ja) * 2002-01-11 2003-07-22 Maikooru Kk 化学カイロ用収納袋とその製造方法並びにこの製造方法を実施するためのシール型、製造装置並びに発熱体
JP2005304613A (ja) * 2004-04-19 2005-11-04 Toa Kiko Kk 使い捨てカイロ、その製造方法及び製造装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011030818A1 (fr) * 2009-09-09 2011-03-17 小林製薬株式会社 Dispositif de traitement
JP2011056017A (ja) * 2009-09-09 2011-03-24 Kobayashi Pharmaceutical Co Ltd 治療具
CN102481202A (zh) * 2009-09-09 2012-05-30 小林制药株式会社 治疗装置
CN102481202B (zh) * 2009-09-09 2015-11-25 小林制药株式会社 治疗装置
US20160242960A1 (en) * 2013-09-30 2016-08-25 Kobayashi Pharmaceutical Co., Ltd. Disposable body warmer
EP3053551A4 (fr) * 2013-09-30 2017-05-31 Kobayashi Pharmaceutical Co., Ltd. Dispositif de chauffage corporel jetable
US10195074B2 (en) 2013-09-30 2019-02-05 Kobayashi Pharmaceutical Co., Ltd. Disposable body warmer

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