JPWO2022259588A5

JPWO2022259588A5 -

Info

Publication number: JPWO2022259588A5
Application number: JP2023527477A
Authority: JP
Filing date: 2022-01-05
Publication date: 2023-09-21
Anticipated expiration: 2042-01-05

Description

＜２＞
前記値［１００×（水／被酸化性金属の粉末）］が、より好ましくは９８以上、更に好ましくは１００以上、より更に好ましくは１０５以上であり、
より好ましくは１２５以下、更に好ましくは１２０以下、より更に好ましくは１１０以下である、前記＜１＞に記載の温熱具。
＜３＞
前記電解質として塩化ナトリウムを含み、
前記塩化ナトリウムの含有質量に対する前記水の含有質量の比が３．５以上２５以下である、前記＜１＞又は＜２＞に記載の温熱具。
＜４＞
前記塩化ナトリウムの含有質量に対する前記水の含有質量の比が、好ましくは５．０以上、更に好ましくは１０．０以上、一層好ましくは１１．０以上であり、
より好ましくは１８．０以下、更に好ましくは１５．０以下である、前記＜３＞に記載の温熱具。
＜５＞
前記炭素材料の粉末の含有質量に対する前記水の含有質量の比が、より好ましくは１０以上、更に好ましくは１１以上、一層好ましくは１２以上であり、
より好ましくは２０以下、更に好ましくは１５以下、一層好ましくは１４以下、前記＜１＞～＜４＞のいずれか一に記載の温熱具。
<2>
The value [100×(water/oxidizable metal powder)] is more preferably 98 or more, still more preferably 100 or more, even more preferably 105 or more,
The heating tool according to <1> above, which is more preferably 125 or less, still more preferably 120 or less, even more preferably 110 or less.
<3>
Containing sodium chloride as the electrolyte,
The heating tool according to <1> or <2>, wherein the ratio of the mass content of the water to the mass content of the sodium chloride is 3.5 or more and 25 or less.
<4>
The ratio of the mass content of the water to the mass content of the sodium chloride is preferably 5.0 or more, more preferably 10.0 or more, even more preferably 11.0 or more,
The heating tool according to <3> above, which is more preferably 18.0 or less, still more preferably 15.0 or less.
<5>
The ratio of the mass content of the water to the mass content of the carbon material powder is more preferably 10 or more, still more preferably 11 or more, even more preferably 12 or more,
The heating tool according to any one of <1> to <4>, more preferably 20 or less, still more preferably 15 or less, even more preferably 14 or less.

＜６＞
前記発熱体が、以下の（ｉ）又は（ｉｉ）の構造を有し、
（ｉ）基材シートとその一面に設けられた発熱組成物の層とからなり、該層が、前記被酸化性金属の粉末、前記炭素材料の粉末、前記水及び前記電解質を含むペーストから得られるものである。
（ｉｉ）前記被酸化性金属の粉末、前記炭素材料の粉末、前記水、前記電解質、及び繊維材料を含む抄紙体である。
前記（ｉ）における発熱組成物、又は前記（ｉｉ）における発熱体は、水の含有質量に対する水以外の構成材料の含有質量の比（水以外の構成材料／水）が、好ましくは０．５以上、より好ましくは０．９以上、更に好ましくは１以上であり、
好ましくは１．５以下、より好ましくは１．３以下、更に好ましくは１．２以下である、前記＜１＞～＜５＞のいずれか一に記載の温熱具。
＜７＞
前記発熱体が扁平な包材内に収容されており、
前記包材の一方の面は、ＪＩＳＰ８１１７の規定によって測定される通気度が０秒／１００ｍＬ以上５０００秒／１００ｍＬ以下であるシート材から構成されている、前記＜１＞～＜６＞のいずれか一に記載の温熱具。
＜８＞
前記シート材は、ＪＩＳＰ８１１７の規定によって測定される通気度が、より好ましくは１０秒／１００ｍＬ以上、更に好ましくは２０秒／１００ｍＬ以上、一層好ましくは３０秒／１００ｍＬ以上であり、
より好ましくは３０００秒／１００ｍＬ以下、更に好ましくは１５００秒／１００ｍＬ以下、一層好ましくは１００秒／１００ｍＬ以下である、前記＜７＞に記載の温熱具。
＜９＞
前記包材の他方の面は、第２シート材によって構成されており、
前記第２シート材は、ＪＩＳＰ８１１７の規定によって測定される通気度が、１００００秒／１００ｍＬ以上であることが好ましく、２５０００秒／１００ｍＬ以上であることがより好ましく、８００００秒／１００ｍＬ以上であることが更に好ましい、前記＜７＞又は＜８＞に記載の温熱具。
<6>
The heating element has the following structure (i) or (ii),
(i) Consisting of a base sheet and a layer of a heat-generating composition provided on one surface thereof, the layer is obtained from a paste containing the oxidizable metal powder, the carbon material powder, the water, and the electrolyte. It is something that can be done.
(ii) A paper body containing the oxidizable metal powder, the carbon material powder, the water, the electrolyte, and a fiber material.
In the exothermic composition in (i) or the exothermic element in (ii) above, the ratio of the mass content of the constituent material other than water to the mass content of water (constituent material other than water/water) is preferably 0.5. or more, more preferably 0.9 or more, still more preferably 1 or more,
The heating tool according to any one of <1> to <5>, wherein the temperature is preferably 1.5 or less, more preferably 1.3 or less, and even more preferably 1.2 or less.
<7>
The heating element is housed in a flat packaging material,
One surface of the packaging material is made of a sheet material having an air permeability of 0 sec/100 mL or more and 5000 sec/100 mL or less as measured in accordance with the provisions of JIS P8117. The heating device described in 1.
<8>
The sheet material has an air permeability measured according to JIS P8117, more preferably 10 seconds/100 mL or more, still more preferably 20 seconds/100 mL or more, even more preferably 30 seconds/100 mL or more,
The heating tool according to <7> above, which is more preferably 3000 seconds/100 mL or less, still more preferably 1500 seconds/100 mL or less, even more preferably 100 seconds/100 mL or less.
<9>
The other surface of the packaging material is constituted by a second sheet material,
The second sheet material preferably has an air permeability measured according to the provisions of JIS P8117 of 10,000 seconds/100 mL or more, more preferably 25,000 seconds/100 mL or more, and 80,000 seconds/100 mL or more. is more preferable, the heating tool according to <7> or <8> above.

Claims

Equipped with a heating element containing oxidizable metal powder, carbon material powder, water and electrolyte,
The heating element is a sheet-like material,
In the heating element, the ratio of the mass content of the water to the mass content of the oxidizable metal powder multiplied by 100 [100×(water/oxidizable metal powder)] is 95 or more and 130 or less. can be,
In the heating element, the ratio of the mass content of the water to the mass content of the powder of the carbon material is 6 or more and 30 or less.

Containing sodium chloride as the electrolyte,
The heating tool according to claim 1, wherein the ratio of the mass content of the water to the mass content of the sodium chloride is 3.5 or more and 20.0 or less.

The heating element is housed in a flat packaging material,
The heating device according to claim 1 or 2, wherein one surface of the packaging material is made of a sheet material having an air permeability of 0 sec/100 mL or more and 5000 sec/100 mL or less as measured according to JIS P8117. .

The heating tool according to claim 3, wherein a layer containing water-absorbing resin powder is disposed between the heating element and the packaging material.

The heating element is composed of a base sheet and a layer of a heat generating composition provided on one surface of the base sheet,
The layer of the exothermic composition is obtained from a paste containing the oxidizable metal powder, the carbon material powder, water, and an electrolyte,
The heating tool according to any one of claims 1 to 4, further comprising a layer containing water-absorbing resin powder adjacent to the layer of the heat-generating composition.

The heating tool according to any one of claims 1 to 5, wherein steam is generated from the heating element itself as heat is generated.

The heating tool according to claim 6, wherein the amount of steam generated for 10 minutes from the start of heat generation is 70 mg/10 min or more.

The heating tool according to any one of claims 1 to 7, wherein the duration of the temperature of 38° C. or higher is 5 minutes or more and 30 minutes or less.