CN112969435A - Cooling bag and manufacturing method thereof - Google Patents
Cooling bag and manufacturing method thereof Download PDFInfo
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- CN112969435A CN112969435A CN201980072029.1A CN201980072029A CN112969435A CN 112969435 A CN112969435 A CN 112969435A CN 201980072029 A CN201980072029 A CN 201980072029A CN 112969435 A CN112969435 A CN 112969435A
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- bag
- outer bag
- cooling
- inner bag
- sheet
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- 238000001816 cooling Methods 0.000 title claims abstract description 76
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003814 drug Substances 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 229940079593 drug Drugs 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005304 joining Methods 0.000 claims description 32
- 239000000126 substance Substances 0.000 claims description 26
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 14
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 12
- 239000004202 carbamide Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000002826 coolant Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims 3
- 230000004888 barrier function Effects 0.000 claims 1
- 230000036571 hydration Effects 0.000 claims 1
- 238000006703 hydration reaction Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 description 12
- 238000012986 modification Methods 0.000 description 12
- 229920005989 resin Polymers 0.000 description 10
- 239000011347 resin Substances 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 8
- 229910017053 inorganic salt Inorganic materials 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000010009 beating Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 1
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- XGVYXURUHKYWND-UHFFFAOYSA-L disodium sulfate octahydrate Chemical compound O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O XGVYXURUHKYWND-UHFFFAOYSA-L 0.000 description 1
- MYEGRIHQBUXGCK-UHFFFAOYSA-L disodium;sulfate;dodecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O MYEGRIHQBUXGCK-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000005026 oriented polypropylene Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Images
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
- A61F7/10—Cooling bags, e.g. ice-bags
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Packages (AREA)
- Making Paper Articles (AREA)
Abstract
The present invention provides an improved cooling bag and a method for manufacturing the same, wherein an inner bag in an outer bag is reliably ruptured by applying a force of a predetermined value or more to the cooling bag from the outside of the outer bag, and an endothermic reaction is rapidly and reliably generated. The cooling bag is provided with an outer bag (11) and an inner bag (12), and a granular medicine (13) is contained in the outer bag (11). The inner bag (12) has a predetermined size, and is stored in the outer bag (11) after water or hydrate is sealed therein. The cooling pack (10) is configured such that, when a force of a predetermined level or more is applied from the outside of the outer pack (11), the inner pack (12) is ruptured within the outer pack (11), and water in the inner pack (12) flows out into the outer pack (11) and then is immersed in the drug (13), thereby causing an endothermic reaction. In order to prevent the inner bag (12) from moving within the outer bag (11) when a force is applied to the cooling bag (10) from outside the outer bag (11), a stopper portion for preventing the movement of the inner bag (12) is provided in the outer bag (11).
Description
Technical Field
The invention relates to a cooling bag and a manufacturing method thereof.
Background
Another conventional example of a cooling bag is disclosed in patent document 2. Patent document 2 discloses that "a conventional chemical cooler bag or chemical cooling bag is configured such that, as shown in fig. 1 of patent document 2, a coolant (2) such as ammonium nitrate is contained in an outer bag (1), an inner bag (3) which can be ruptured by external pressure is contained therein, and water, for example, is contained in the inner bag (3). When the chemical cooling bag configured as described above is used, water (4) is added to the coolant (2) by rupturing the inner bag (3), and a cooling effect is produced by a chemical reaction of the coolant (2). "(page 2, lines 7 to 15 of patent document 2).
Further, as a practical example of the cooling pack, a product called "Hiyaron" (registered trademark) is marketed by the applicant of the present application. (see non-patent document 1)
Documents of the prior art
Patent document
Patent document 1: japanese Kokai publication Hei 7-26671
Patent document 2: microfilms of Japanese patent application No. Sho 54-108589 (Japanese Kokai No. Sho 56-26115)
Non-patent document
Non-patent document 1:
https：//www.lotte.co.jp/products/catalogue/kenko_zakka/02/detail02.html
disclosure of Invention
Problems to be solved by the invention
The cooling bag disclosed in patent document 1 has a problem that water (tap water) must be injected into the bag through a check valve provided in the bag when the cooling bag is used, and the use convenience is poor.
In this regard, the cooling pack described in patent document 2 and the cooling pack of the above-described embodiment are excellent in terms of convenience in use because the inner bag (water bag) is broken by external pressure during use.
However, in the conventional cooling pack having a structure in which a powder-like chemical (cooling chemical) and an inner bag (water bag) containing water are accommodated in an outer bag, it is not clear at which position the water bag is located in the outer bag, and it is difficult to specify the position of beating. In addition, since the water bag is not hit even by beating, the water bag is not broken and the drug does not react with water. Further, it has been found that the powder-like drug in the outer bag absorbs the impact when the outer bag is tapped, and does not transmit sufficient pressure to the water bag, thereby causing a problem that the water bag is hard to break.
The present invention has been made to solve the above problems, and a main object of the present invention is to provide an improved cooling pack in which an inner bag in an outer bag is reliably ruptured by applying a force of a predetermined value or more from the outside of the outer bag, and an endothermic reaction is rapidly and reliably generated, and a method for manufacturing the same.
Means for solving the problems
In order to achieve the above object, the present invention according to claim 1 provides a cooling pack including an outer bag in which a powdered or granular chemical is accommodated, and an inner bag which is a sealed bag having a predetermined size and in which water is accommodated, the inner bag being stored in the outer bag, the cooling pack being configured such that the inner bag is ruptured in the outer bag by applying a predetermined force or more from outside the outer bag, the water in the inner bag flows out of the outer bag and then is immersed in the chemical to cause an endothermic reaction, and the outer bag being provided with a stopper portion for preventing movement of the inner bag so as not to move the inner bag in the outer bag when a force is applied from outside the outer bag.
The invention described in claim 2 is a cooling pack including an outer bag in which a powder-like chemical is stored, and an inner bag which is a sealed bag having a predetermined size and in which a predetermined hydrate containing hydrated water is stored, the inner bag being stored in the outer bag, the cooling pack being configured such that the inner bag is ruptured in the outer bag by applying a predetermined force or more from outside the outer bag, the hydrated water contained in the hydrate in the inner bag flows out of the outer bag and is then immersed in the chemical to cause an endothermic reaction, and the outer bag being provided with a stopper portion for preventing movement of the inner bag so as not to move the inner bag in the outer bag when a force is applied from outside the outer bag.
The invention described in claim 3 is the cooling bag described in claim 1 or 2, wherein the outer bag includes a 1 st sheet, a 2 nd sheet having the same size as the 1 st sheet, a joining portion for joining inner surfaces of peripheral portions of the 1 st sheet and the 2 nd sheet, and a housing chamber formed between the 1 st sheet and the 2 nd sheet, and the stopper portion includes a joining point for joining an inner surface of the 1 st sheet and an inner surface of the 2 nd sheet facing each other in a dot shape at a predetermined position in the housing chamber.
The invention described in claim 4 is the cooling bag described in claim 3, wherein 2 or more of the bonding points are provided at intervals narrower than the width of the inner bag.
The invention described in claim 5 is a method for manufacturing a cooling pack, comprising preparing a 1 st sheet and a 2 nd sheet having the same size as the 1 st sheet, overlapping the 1 st sheet and the 2 nd sheet, joining inner surfaces of peripheral edge portions thereof, and joining the 1 st sheet and the 2 nd sheet at a predetermined position in a dot shape, thereby forming an outer pack having an opening at one end edge, filling a powdery and granular cooling agent into the outer pack from the opening, accommodating an inner bag having a predetermined size and having water or a predetermined hydrate containing water sealed therein from the opening into the outer pack, and thereafter joining and sealing the opening of the outer pack.
The invention described in claim 6 is the method for manufacturing a cooling pack described in claim 5, wherein the cooling chemical includes ammonium nitrate as a 1 st chemical and urea as a 2 nd chemical, and the 1 st chemical and the 2 nd chemical are first filled from the opening.
The invention described in claim 7 is the method for manufacturing a cooling pack described in claim 6, wherein the step of filling the 1 st drug is reversed from the step of filling the 2 nd drug.
Effects of the invention
In the present invention, a stopper is provided in the outer bag to prevent the inner bag from moving in the outer bag when a force is applied from the outside of the outer bag. Therefore, since the inner bag does not move freely inside the outer bag, an external force can be applied accurately to the portion of the outer bag where the inner bag is stored. This can reliably break the inner bag.
Further, even if the medicine is dispersed around the inner bag, since the amount of the dispersed medicine is not large, the external force is not applied to the inner bag and the inner bag can be ruptured without being absorbed by the medicine mostly.
In the present embodiment, the inner bag can be ruptured after the outer bag is flaked by appropriately sizing the outer bag and the inner bag, and the inner bag can be ruptured by easily applying a load to the inner bag by pinching and grasping the outer bag.
In addition, in the present invention, the cooling pack can be easily manufactured without increasing the number of steps or the like.
Drawings
Fig. 1 is a schematic plan view showing an example of a cooling pack 10 according to an embodiment of the present invention.
Fig. 2 is a diagrammatic, cross-sectional view along arrows II-II of the cooling bag 10 of fig. 1.
Fig. 3 is a diagrammatic longitudinal section along the arrows III-III of the cooling bag 10 of fig. 1.
Fig. 4 is a plan view showing an example of the inner bag 12.
Fig. 5 is a schematic view showing how the cooling bag 10 is pinched and the inner bag 12 is broken.
Fig. 6A is a diagram illustrating a method of manufacturing the cooling pack 10 according to the present embodiment.
Fig. 6B is a diagram illustrating a method of manufacturing the cooling pack 10 according to the present embodiment.
Fig. 6C is a diagram showing a method of manufacturing the cooling pack 10 of the present embodiment.
Fig. 6D is a diagram showing a method of manufacturing the cooling pack 10 of the present embodiment.
Fig. 7 is a plan view showing an outer bag 21 for a cooling bag according to modification 1.
Fig. 8A and 8B show outer bags 22 and 23 according to modification 2, and fig. 8C is a completed view of cooling bag 10 according to modification 2.
Fig. 9A, 9B, and 9C are views of the cooling pack according to modification 3.
Fig. 10 is an image of a cooling pack according to modification 4.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Fig. 1 is a schematic plan view showing an example of a cooling pack 10 according to an embodiment of the present invention. In fig. 1, an inner bag 12 as an internal storage of the cooling pack 10 is shown by a dotted line, and a medicine 13 is exemplarily shown. Fig. 2 is a diagrammatic, cross-sectional view along the arrows II-II of the cooling bag 10 of fig. 1, and fig. 3 is a diagrammatic, longitudinal sectional view along the arrows III-III of the cooling bag 10 of fig. 1.
Referring to fig. 1 to 3, the cooling pack 10 includes an outer pack 11, an inner pack 12 accommodated in the outer pack 11, and a medicine 13 accommodated in the outer pack 11.
As an example, the outer bag 11 may be a sealed bag in which 2 resin sheets 14 and 15, each having a rectangular vertical shape in plan view and rounded corners, are stacked and the peripheral edge portion 16 thereof is joined.
Instead of the bag in which 2 resin sheets 14 and 15 are stacked as in this embodiment, the outer bag 11 may be a so-called three-side joint type bag in which 1 resin sheet is folded in two along the lower side, for example, and the left and right sides and the upper side are joined.
In addition, in the outer bag 11, for example, 2 circular point- like joints 17A and 17B are formed at positions close to both sides of a substantially central portion in a longitudinal direction in a plan view. The 2 joining points 17A and 17B function as stoppers for preventing the movement of the inner bag 12. The joint 17A is provided at a position slightly inward of the peripheral edge portion 16, that is, at a position slightly inward of the left edge joint portion 16L with a certain gap therebetween. The joint 17B is provided at a position slightly inward to the left with respect to the right edge joint portion 16R with a certain gap from the right edge joint portion 16R. The interval between the 2 joining points 17A and 17B is set to be narrower than the width of the inner bag 12. Similarly to the joining of the peripheral edge portion 16, the inner surfaces of the resin sheets 14 and 15 are joined together, for example, by heating and pressing, thereby forming 2 joint points 17A and 17B.
In this embodiment, the outer bag 11 is composed of, for example, a plurality of resin film sheets 14 and 15 having a sealing layer laminated on the inner surface thereof. Given a specific example, the membranes 14, 15 are formed of, for example, 5- layer resin membranes 14, 15,
outer layer: OPP (biaxially oriented polypropylene film 20 μm thick)
Inner layer 1: PE (polyethylene film 15 μm thick)
Inner layer 2: VMPET (polyethylene terephthalate film with 12 μm thickness of aluminum vapor deposition)
Inner layer 3: PE (polyethylene film 15 μm thick)
An innermost layer: LLDPE (Linear Low Density polyethylene film 50 μm thick).
Thereafter, the 2 resin film sheets 14 and 15 are heat-pressure bonded to each other to thereby realize the bonding of the peripheral edge portion 16 and the bonding points 17A and 17B.
An example of the size of the outer bag 11 is as follows.
The outer bag 11 has a long side of 203mm, a short side of 133mm, a peripheral edge joining portion 16 of 7mm in width, joining points 17A and 17B each having a diameter of 11mm in a plan view, a non-joining portion interval between the left edge joining portion 16L and the joining point 17A being 12mm, a non-joining portion interval between the right edge joining portion 16R and the joining point 17B being 12mm, and a (non-joining portion) interval between the joining points 17A and 17B being 73 mm.
Fig. 4 is a plan view showing an example of the inner bag 12. The inner bag is a sealed bag formed by folding a rectangular resin film sheet in two and joining three sides.
An example of the size of the inner bag 12 is as follows.
The inner bag 12 has a long side (length in the lateral direction in fig. 4) of 105mm, a short side (length in the longitudinal direction in fig. 4) of 65mm, a top joint of 7mm, a left joint of 7mm, and a right joint of 10 mm.
Water (tap water) 40g is stored in the inner bag 12 as an example.
The inner bag 12 is also formed of a plurality of films each having a sealing layer laminated on the inner surface thereof, for example. Given specific examples, the membrane is formed, for example, from a 5-layer membrane sheet,
outer layer: PET (polyethylene terephthalate film with thickness of 12 μm)
Inner layer 1: PE (polyethylene film 15 μm thick)
Inner layer 2: AL (aluminum foil 7 μm thick)
Inner layer 3: PE (polyethylene film 15 μm thick)
An innermost layer: TAF (coextruded multilayer film thickness 30 μm).
Referring again to fig. 1 to 3, the outer bag 11 contains a medicine 13. As an example, a powdered or granular medicine that reacts with water to cause an endothermic chemical reaction is used as the medicine 13. Specifically, ammonium nitrate and/or urea can be used, for example. In the present embodiment, for example, 40g of ammonium nitrate in a small particle form and 40g of urea in a small particle form are accommodated in the outer bag 11.
< function >
As shown in fig. 1, the cooling pack 10 of the present embodiment contains a powder-granular chemical 13 (ammonium nitrate and urea) and an inner bag 12 in an outer bag 11. Water (containing water) is trapped in the inner bag 12.
When a predetermined force or more is applied from the outside of the outer bag 11, the inner bag 12 is ruptured inside the outer bag 11, and the water in the inner bag 12 flows out into the outer bag 11 to impregnate the drug 13. As a result, an endothermic reaction occurs, and the aqueous solution in the outer bag 11 becomes cold.
For reference, the endothermic reaction of urea with water is shown below.
CO(NH2)2+aq→CO(NH2)2aq + Q (heat of solution)
Likewise, the endothermic reaction of ammonium nitrate with water is shown below.
NH4NO3+aq→NH4NO3aq + Q (heat of solution)
In any endothermic reaction, Q has a negative value (for example, Q ═ 14kj (25 ℃) in the case of urea, or-25 kj (25 ℃) in the case of ammonium nitrate), and the temperature is lowered to cool the aqueous solution, so that the cooling pack 10 functions.
< method of use >
Referring to fig. 5, a method of using the cooling pack 10 of the present embodiment will be described.
The cooling bag 10 of the present embodiment is formed in a rectangular shape that is long in the vertical direction in plan view, and the inner bag 12 is housed in a portion (for example, a portion in the upper half) near one side in the longitudinal direction of the rectangular shape. In addition, in order to prevent the inner bag 12 from moving downward from a portion of the upper half portion, for example, in the outer bag 11, the movement is blocked by the 2 joints 17A and 17B.
Therefore, when the cooling bag 10 is used, as shown in fig. 5, the upper half portion of the outer bag 11 (the side in which the inner bag 12 is housed) is pinched flat, and the inner bag 12 is ruptured inside the outer bag 11.
This causes the water in the inner bag 12 to flow into the outer bag 11, and the medicine 13 is impregnated therein, thereby causing an endothermic reaction.
The water flowing out of the inner bag 12 and the aqueous solution in which the chemical 13 is dissolved move freely in the outer bag 11 through the non-bonded region despite the presence of the bonding points 17A and 17B, and therefore the entire outer bag 11 effectively functions as a cooling bag.
In the above description of the method of use, the inner bag 12 is broken inside the outer bag 11 by pinching down the portion of the outer bag 11 that accommodates the inner bag 12. However, the inner bag 12 may be ruptured in the outer bag 11 by strongly tapping the portion of the outer bag 11 in which the inner bag 12 is housed, as in the case of the cooling bag already commercialized by the applicant of the present application. Even when the inner bag 12 is ruptured by beating, the inner bag 12 is made immovable from a portion of one half in the longitudinal direction in the outer bag 11, and therefore the impact of beating is smoothly transmitted to the inner bag 12, and the inner bag 12 is easily ruptured. Further, the medicine 13 contained in the outer bag 11 is mainly contained in the other half portion in the longitudinal direction in the outer bag 11, and the amount of the medicine 13 existing around the inner bag 12 is small, so that the impact of the tapping is hardly absorbed by the granular medicine 13, and the impact is easily transmitted to the inner bag 12, and the inner bag 12 is easily broken.
< manufacturing method >
A method for manufacturing the cooling pack 10 of the present embodiment will be described with reference to fig. 6A to 6D.
First, referring to fig. 6A, the outer bag 11 is manufactured by joining 3 sides of the bag and joining the joining points 17A and 17B by heat sealing. One side (upper side in the figure) of the outer bag 11 is not heat-sealed and has an opening.
Then, referring to fig. 6B, the outer bag 11 is filled with powder or granules of ammonium nitrate as the chemical 13 through the opened upper opening.
Even if the joints 17A and 17B are provided, the filled chemical 13 (ammonium nitrate) is entirely contained below the outer bag 11 through the non-joint region.
Referring to fig. 6B, the outer bag 11 is filled with urea powder or granules as the chemical 13 through the opened upper opening.
As with ammonium nitrate, the filled chemical 13 (urea) is contained below the outer bag 11 despite the presence of the joints 17A, 17B.
In the filling of the chemical 13 into the outer bag 11, the order of filling may be changed between ammonium nitrate and urea.
In addition, the cooling agent 13 may use only ammonium nitrate or only urea, depending on the product. Alternatively, other cooling agents may be used.
Then, referring to fig. 6C, the inner bag 12 is received in the outer bag 11 through the opened upper opening.
As the inner bag 12, a bag sealed with water stored in advance is used. The inner bag 12 housed in the outer bag 11 is prevented from moving downward in the outer bag 11 by joints 17A and 17B formed in the outer bag 11, and remains above the outer bag 11.
Finally, referring to fig. 6D, after the inner bag 12 is stored, the upper opening of the outer bag 11 is joined by heat sealing, and the outer bag 11 is formed into a closed bag.
< modification example >
Fig. 7 shows an outer bag 21 for a cooling bag according to modification 1. Instead of the above dimensions, the outer bag 21 may be provided with the dimensions shown in fig. 7, that is, the outer bag 21 having a transverse width of 140mm, a longitudinal length of 175mm, and a distance between the joining points 17A and 17B of 80 mm. In this case, the inner bag is appropriately adjusted in size to match the size of the outer bag 21.
Fig. 8A and 8B show outer bags 22 and 23 for a cooling bag according to modification 2, respectively. As shown in fig. 8A and 8B, the joints 17A and 17B formed in the outer bags 22 and 23 are formed in a point shape having a triangular shape in plan view, instead of the point-shaped and circular joints in plan view.
Fig. 8C shows a finished image of the cooling pack 10 when the outer pack 23 of fig. 8B is used.
Fig. 9A, 9B, and 9C are views showing a cooling pack according to modification 3.
As shown in fig. 9A, 3 bonding points 17 are provided in the outer bag 24, and the inside of the outer bag 24 is divided into left and right regions by the bonding points 17. Thereafter, the inner bag 12 is housed in the left area, and the medicine 13 is housed in the right area.
As shown in fig. 9B, 3 joining points 17 may be provided in the outer bag 25, and the inside of the outer bag 25 may be divided into a lower region and an upper region by the joining points 17. Thereafter, the medicine 13 is stored in the lower region, and the inner bag 12 is stored in the upper region.
Further, as shown in fig. 9C, the lower region of the outer bag 26 may be divided into a lower right region and a lower left region by the 3 joint points 17. Thereafter, the medicines 13 are accommodated in these lower left and right areas. On the other hand, the inner bag 12 is received in an upper region of the outer bag 26 so as to be supported by the uppermost joining point 17.
Fig. 10 is an image of a cooling pack 10 according to a modification example 4. As shown in fig. 10, the outer bag 27 is formed in a planar shape other than a rectangular shape, for example, having an expanded portion on both the left and right sides and a tapered portion at the center in the left and right direction. In addition, a joint 17 is provided at the tapered portion as needed. In this modification, for example, the medicine 13 is stored in the left housing chamber, and the inner bag is stored in the right housing chamber. When the inner bag 12 in the right housing chamber is ruptured during use, the aqueous solution uniformly enters both the left and right housing chambers, and the cooling pack 10 can be provided in a form suitable for cooling the neck, the eyes, and the like, for example.
< Others >
In the above description of the respective embodiments, the inner bag 12 in the outer bag is broken by applying a force of a predetermined value or more from the outside of the outer bag, but the outer bag itself is not broken at this time. For this purpose, the thickness, layer structure, and the like of the resin film sheet constituting the outer bag are appropriately selected and designed.
The inner bag 12 is a water bag filled with water (tap water) and has been described. However, the hydrate exhibiting the same chemical reaction effect as water may be stored in the inner bag 12 instead of water.
As an example, the substance sealed in the inner bag 12 may be an "inorganic salt hydrate" instead of "water". The hydrate of inorganic salt that can be used is required to be in the form of solid particles at room temperature, and examples thereof include sodium sulfate decahydrate, sodium sulfate octahydrate, and sodium sulfate dodecahydrate. In the inorganic salt hydrate, a part of the inorganic salt does not directly react with the chemical (ammonium nitrate, urea), but only a part of water (hydrated water) separated from the inorganic salt hydrate reacts with the chemical. In the case of using the inorganic salt hydrate, the cooling reaction lacks rapidity as compared with the case of using water, but the cooled state can be continued for a long time.
The present invention is not limited to the embodiments described above, and various modifications can be made within the scope described in the claims.
Description of the reference numerals
10 cooling bags, 11, 21, 22, 23, 24, 25, 26, 27 outer bags, 12 inner bags, 13 medicaments, 14, 15 resin sheets, 16 peripheral edge portions, 16L left edge joint portions, 16R right edge joint portions, and 17, 17A, 17B joint portions.
Claims (7)
1. A cooling pack comprising an outer bag containing a powdery and granular chemical and an inner bag, wherein the inner bag is a sealed bag having a predetermined size and containing water therein, and the inner bag is stored in the outer bag,
in the cooling bag, the inner bag is ruptured in the outer bag by applying a force of a predetermined value or more from the outside of the outer bag, and the water in the inner bag flows out into the outer bag and then is immersed in the drug to cause an endothermic reaction,
in order not to move the inner bag within the outer bag when a force is applied from the outside of the outer bag, a stopper portion that prevents movement of the inner bag is provided in the outer bag.
2. A cooling pack comprising an outer bag in which a powdery and granular chemical is accommodated, and an inner bag which is a sealed bag having a predetermined size and in which a predetermined hydrate containing water hydrate is accommodated, the inner bag being stored in the outer bag,
in the cooling bag, the inner bag is ruptured in the outer bag by applying a force of a predetermined value or more from the outside of the outer bag, and the hydration water contained in the hydrate in the inner bag flows out into the outer bag and then is immersed in the drug to cause an endothermic reaction,
in order not to move the inner bag within the outer bag when a force is applied from the outside of the outer bag, a stopper portion that prevents movement of the inner bag is provided in the outer bag.
3. A cooling bag according to claim 1 or 2,
the outer bag comprises:
the 1 st piece,
A 2 nd sheet having the same size as the 1 st sheet,
A joining part for joining inner surfaces of the peripheral edge parts of the 1 st and 2 nd sheets, and
a containing chamber formed between the 1 st piece and the 2 nd piece,
the barrier section includes a joint point at a predetermined position in the housing chamber, the joint point joining an inner surface of the 1 st sheet and an inner surface of the 2 nd sheet facing each other in a dot shape.
4. A cooling bag according to claim 3,
the joint points are provided at 2 or more intervals narrower than the width of the inner bag.
5. A method for manufacturing a cooling pack, characterized in that,
preparing a 1 st sheet and a 2 nd sheet having the same size as the 1 st sheet, superposing the 1 st sheet and the 2 nd sheet, joining inner surfaces of three peripheral edge portions thereof, and joining facing inner surfaces of the 1 st sheet and the 2 nd sheet at a predetermined position in a dot form to form an outer bag having an opening at one end edge,
filling a powdery and granular cooling agent into the outer bag through the opening,
then, an inner bag having a predetermined size and having water or a predetermined hydrate containing water sealed therein is accommodated into the outer bag from the opening,
thereafter, the opening of the outer bag is joined to be closed.
6. The method of manufacturing a cooling pack according to claim 5,
the cooling agent contains ammonium nitrate as a 1 st agent and urea as a 2 nd agent,
the 1 st medicament is first filled from the opening,
followed by filling with agent 2.
7. The method of manufacturing a cooling pack according to claim 6,
the step of filling the 1 st drug is reversed from the step of filling the 2 nd drug.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018208376A JP7121636B2 (en) | 2018-11-05 | 2018-11-05 | Cooling bag and manufacturing method thereof |
| JP2018-208376 | 2018-11-05 | ||
| PCT/JP2019/034001 WO2020095519A1 (en) | 2018-11-05 | 2019-08-29 | Cooling bag and production method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112969435A true CN112969435A (en) | 2021-06-15 |
Family
ID=70611525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980072029.1A Pending CN112969435A (en) | 2018-11-05 | 2019-08-29 | Cooling bag and manufacturing method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7121636B2 (en) |
| CN (1) | CN112969435A (en) |
| TW (1) | TWI796523B (en) |
| WO (1) | WO2020095519A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654802B (en) * | 2022-12-29 | 2023-04-11 | 山东履信思源防伪技术有限公司 | Ice bag for cooling and preserving seafood and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08310562A (en) * | 1995-03-14 | 1996-11-26 | Daisen Sangyo Kk | Cooling bag |
| CN1491271A (en) * | 2001-10-25 | 2004-04-21 | ������������ʽ���� | Exothermic composition and exothermic article using composition, and method for producing exothermic article |
| CN2826323Y (en) * | 2005-05-27 | 2006-10-11 | 香港江森发展有限公司 | Instant-cooling bag |
| JP2013039154A (en) * | 2011-08-11 | 2013-02-28 | Welco Butsuryu Kk | Cooling implement |
| JP2013116282A (en) * | 2011-12-05 | 2013-06-13 | Kobayashi Pharmaceutical Co Ltd | Cooling device |
| JP3212934U (en) * | 2017-07-04 | 2017-10-12 | 国立研究開発法人国立循環器病研究センター | Coolant |
| JP2018016330A (en) * | 2016-07-26 | 2018-02-01 | フジモリ産業株式会社 | Material storage container |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4462224A (en) * | 1983-07-11 | 1984-07-31 | Minnesota Mining And Manufacturing Company | Instant hot or cold, reusable cold pack |
| US5603729A (en) * | 1995-09-21 | 1997-02-18 | Baxter International Inc. | Portable reusable thermal therapeutic device |
| TW461810B (en) * | 2000-10-19 | 2001-11-01 | Liau Wen Hu | Ice bag capable of rapid cooling |
-
2018
- 2018-11-05 JP JP2018208376A patent/JP7121636B2/en active Active
-
2019
- 2019-08-29 WO PCT/JP2019/034001 patent/WO2020095519A1/en active Application Filing
- 2019-08-29 CN CN201980072029.1A patent/CN112969435A/en active Pending
- 2019-10-03 TW TW108135914A patent/TWI796523B/en active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08310562A (en) * | 1995-03-14 | 1996-11-26 | Daisen Sangyo Kk | Cooling bag |
| CN1491271A (en) * | 2001-10-25 | 2004-04-21 | ������������ʽ���� | Exothermic composition and exothermic article using composition, and method for producing exothermic article |
| CN2826323Y (en) * | 2005-05-27 | 2006-10-11 | 香港江森发展有限公司 | Instant-cooling bag |
| JP2013039154A (en) * | 2011-08-11 | 2013-02-28 | Welco Butsuryu Kk | Cooling implement |
| JP2013116282A (en) * | 2011-12-05 | 2013-06-13 | Kobayashi Pharmaceutical Co Ltd | Cooling device |
| JP2018016330A (en) * | 2016-07-26 | 2018-02-01 | フジモリ産業株式会社 | Material storage container |
| JP3212934U (en) * | 2017-07-04 | 2017-10-12 | 国立研究開発法人国立循環器病研究センター | Coolant |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202023499A (en) | 2020-07-01 |
| TWI796523B (en) | 2023-03-21 |
| WO2020095519A1 (en) | 2020-05-14 |
| JP7121636B2 (en) | 2022-08-18 |
| JP2020074824A (en) | 2020-05-21 |
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