JP5844108B2 - Heating tool and method for manufacturing the heating tool - Google Patents

Description

  The present invention relates to a heating tool for applying heat to a worn site and a method for manufacturing the same.

  2. Description of the Related Art Conventionally, there has been known a heating tool that generates heat by crystallizing a supercooled predetermined solution accommodated in a main body and imparts heat to a worn site (see, for example, Patent Document 1). Specifically, the predetermined solution in the supercooled state comes into contact with the fine crystals of the predetermined solution, so that crystallization of the predetermined solution starts, and heat of solidification is generated by phase transition.

JP 2007-136076 A

  By the way, in the case of the said patent document 1, in the non-use state which does not generate | occur | produce a heating tool, it is necessary to hold | maintain so that the predetermined solution of a supercooled state and a fine crystal may not contact. Therefore, it is conceivable to store the predetermined solution and the fine crystal in independent storage units, but in such a structure, the structure of the packaging of the main body part of the heating device becomes complicated, resulting in a decrease in manufacturing efficiency. And the problem of incurring cost increases.

  Then, the subject of this invention is simplifying the structure which hold | maintains the predetermined solution and crystallization start part of a supercooled state by a non-use state, and the heating tool which can suppress the fall of manufacturing efficiency and a cost increase, and It is providing the manufacturing method of a heating tool.

In order to solve the above-mentioned problem, the invention described in claim 1
A heating device that applies heat to a part worn by a wearer, the first storage unit storing a predetermined solution in a supercooled state that generates heat due to phase transition, and a volume smaller than that of the first storage unit. And a second storage part in which a crystallization start part for starting crystallization of the predetermined solution by contacting with the predetermined solution is stored, and the first storage part in a non-use state of the heating tool. a body portion constituting the partition portion for partitioning said second housing portion, said main body portion has first and second packaging member, wherein the first and second covering member is superimposed, respectively The first housing portion and the second housing portion are formed by pasting edges and pasting portions corresponding to the partition portions, of the first and second packaging members. , the portion corresponding to the second accommodating portion of one of the packaging member An inner surface, the crystallization starting unit is attached, said partition portion, along with the strength of bonding to other parts other than the partition part is lower in the first and the bonded portion second packaging member The width is gradually narrowed from the first housing portion side to the second housing portion side, and pressure is applied from at least one of the first housing portion side and the second housing portion side during use. It peels off and makes the inner side of the said 1st accommodating part and the inner side of the said 2nd accommodating part communicate.

According to the first aspect of the present invention, the first storage unit that stores the supercooled predetermined solution that generates heat due to the phase transition, the first storage unit having a smaller volume than the first storage unit, and the predetermined solution A second accommodating portion that accommodates a crystallization start portion that initiates crystallization of the predetermined solution by contact, and a partition portion that partitions the first accommodating portion and the second accommodating portion in a non-use state of the heating device And the first and second wrapping members are bonded to each other, and the portions corresponding to the partition portions are attached to each other. combined are made by forming a first housing part and a second housing part by, one of the first and second covering member, the inner surface of the portion corresponding to the second housing portion of one of the packaging member, forming crystallization start unit is attached, the partition portion, the bonded first and second covering member And the strength of bonding to other parts other than the partition part is low in the portion gradually becomes to be narrower width from the first housing portion side to the second housing part side, the first housing when in use Since it is peeled off by the pressure applied from at least one of the part side and the second storage part side to communicate the inside of the first storage part and the inside of the second storage part , the partition part does not use the heating tool. The predetermined solution and the crystallization start part can be held so as not to come into contact with each other. On the other hand, when using the heating tool, at least one of the first storage part side and the second storage part side When the pressure is applied by the user, the partition part is peeled off, and the predetermined solution contained in the first container and the first container are placed in a communication state between the inside of the first container and the inside of the second container . and a crystallization initiation unit accommodated in the second accommodation portion It can be a possible catalyst state. In particular, since the partition portion has a low bonding strength with respect to other portions other than the partition portion, when the inside of the first storage portion and the inside of the second storage portion are in a communicating state, The partition part can be easily peeled off. Therefore, it is possible to simplify the structure that holds the predetermined solution and the crystallization start portion in a supercooled state in a non-use state, and it is possible to suppress a decrease in manufacturing efficiency and an increase in cost of the heating tool.

The invention according to claim 2 is the heating tool according to claim 1,
The crystallization starting unit is characterized by comprising a coating fabric on the inner surface of the portion corresponding to the second housing portion of the one of the packaging member.

According to the invention described in claim 2, it is of course possible to obtain the same effect as that of the invention described in claim 1, and in particular, the crystallization start part is one of the first and second packaging members. because of being coated cloth to the inner surface of the portion corresponding to the second housing portion of the packaging member, it can be carried out the arrangement of the crystallization start portion easily, the reduction and cost of production efficiency of the warming device Can be suppressed.

The invention according to claim 3 is the heating tool according to claim 1 or 2 ,
The partition part is characterized by being bonded to the other part at a low temperature so that the bonding strength of the other part is lowered.

According to the invention described in claim 3, claim 1 or 2 that is naturally the invention and the same effect can be obtained according to, in particular, only crimped at lower temperatures relative to the other portion, the partition The heating tool can be manufactured so that the strength of the bonding of the parts is lower than that of the other part, and a reduction in manufacturing efficiency and an increase in cost of the heating tool can be suppressed.

The invention according to claim 4 is the heating tool according to claim 1 or 2 ,
One of the first and second covering member, a inner surface of at least one of the covering member, the portion corresponding to the partition portion, it is attached particles, the partition section corresponds to the partitioning portion It is characterized in that the bonding strength is lowered with respect to the other portion by being pressure-bonded with the particles attached to the portion interposed.

According to the invention described in claim 4, claim 1 or 2 that is naturally the invention and the same effect can be obtained according to, in particular, is interposed a particle element attached to a portion corresponding to the partition section By simply crimping the first and second wrapping members , that is, with only one crimping operation, the heating tool can be manufactured so that the strength of bonding of the partition portion is lower than that of other portions. And the fall of the manufacturing efficiency of the said heating tool and the cost increase can be suppressed.

The invention according to claim 5 is the heating tool according to claim 4 ,
The particles, the an inner surface of at least one of the covering member, the portion corresponding to the partition portion is characterized by comprising a coating fabric.

According to the invention of claim 5, that of course the same effect as the invention described in claim 4 is obtained, in particular, the grain terminal, of the first and second packaging member, at least one of a inner surface of the packaging member, the portion corresponding to the partition portion, since it is coated cloth, it is possible to perform the arrangement of the particles easily suppress reduction and cost of the production efficiency of the warming device be able to.

The invention described in claim 6
A method of manufacturing a warming device according to claim 1 or 2, one of the first and second covering member, the inner surface of the portion corresponding to the second accommodating portion of one of the packaging member, prior Symbol crystallization a deposition step of depositing a start portion, a high-temperature bonding step of bonding by pressure wearing portions other than the partition portion of said first and second wrapping members at a relatively high temperature, the first and second It is characterized by containing a low-temperature bonding step of bonding by pressure wearing the partition portion at a relatively low temperature in the packaging member.

According to the invention described in claim 6, among the first and second covering member, the inner surface of the portion corresponding to the second housing portion of one of the covering member, the attaching step of attaching a binding crystallization initiation unit, a hot crimping step of bonding by pressure wear in other parts of the relatively high temperatures other than the partition portion in the first and second packaging member, at a relatively low temperature of the partition portion in the first and second covering member only by performing a low-temperature compression bonding step of bonding by pressure wear, it can be produced the warming device to be lower the bonding strength of the partition portion with respect to the other parts, the production efficiency of the warming device Reduction and cost increase can be suppressed.

The invention described in claim 7
A method of manufacturing a warming device according to claim 1 or 2, one of the first and second covering member, the inner surface of the portion corresponding to the second accommodating portion of one of the packaging member, prior Symbol crystallization A crystallization start part attaching step for attaching a start part, and a particle attachment for attaching particles to the inner surface of at least one of the first and second packaging members and corresponding to the partition part a step is characterized by including a bonding step of bonding the first and second packaging member by pressure wearing the partition portion with intervening the deposited the particles on a portion corresponding to the partition section .

According to invention of Claim 7 , the crystallization start part which adheres a crystallization start part to the inner surface of the part corresponding to the 2nd accommodating part of one packaging member among the said 1st and 2nd packaging members. and adhering step, among the first and second covering member, a inner surface of at least one of the covering member, the portion corresponding to the partition portion, after the particle deposition step of depositing the particles, corresponding to the partition section only the deposited particles in a portion interposed therebetween bonding the first and second packaging member by pressure wearing the partition portion, so that a low bonding strength of the partition portion relative to the other portion The said heating tool can be manufactured and the fall of the manufacturing efficiency of the said heating tool and a cost increase can be suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the structure which hold | maintains the predetermined solution and crystallization start part of a supercooled state by a non-use state can be simplified, and the fall of the manufacturing efficiency and the cost increase of the said heating tool are suppressed. Can do.

It is a figure for demonstrating the heating tool for eyes of one Embodiment to which this invention is applied. It is a figure for demonstrating the main-body part of the heating device for eyes of FIG. It is a figure for demonstrating crystallization of the predetermined | prescribed solution accommodated in the main-body part of the heating tool for eyes of FIG. It is a figure for demonstrating the main-body part of the heating tool for eyes of the modification 1. FIG. It is a figure for demonstrating the main-body part of the heating tool for eyes of the modification 2. FIG.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.
FIG. 1 is a view for explaining an eye heating device 100 according to an embodiment to which the present invention is applied. FIG. 1 (a) is a front view showing the eye heating device 100, and FIG. ) Is a cross-sectional view of the eye heating device 100 taken along line I-I in FIG.

The eye heating tool 100 is a heating tool that is formed in an eye mask shape, for example, and covers the eyes E and E of the wearer H to apply heat. Specifically, as shown in FIGS. 1 (a) and 1 (b), the eye heating device 100 is worn so as to cover the left and right eyes E and E of the wearer H during use. A main body 1, 1 and a pair of ear hooks 2, 2 that are hung on each ear of the wearer H are provided.
In the present embodiment, the left-right direction connecting the left and right eyes E, E of the wearer H is the X direction, the one direction orthogonal to the X direction is the Y direction, and the direction orthogonal to both the X direction and the Y direction is Z. The direction. Note that the eye heating device 100 is generally used in a state where the front of the face is directed upward (see FIG. 1B), for example, when the wearer H is on his back, Z The description will be made assuming that the direction is substantially parallel to the vertical direction (the direction of gravity).
FIG. 1B schematically shows a state in which the eye heating tool 100 is worn across the eyebrow H1 to the cheek H2 with the eyelid H3 of the wearer H closed.

FIG. 2 is a view for explaining the main body 1 of the eye heating device 100, and FIG. 2 (a) is a plan view showing the main body 1 of the eye heating device 100, and FIG. These are sectional drawings of the main-body part 1 in the II-II line | wire of Fig.2 (a).
Two main body parts 1 are provided in the X direction (left and right direction) so as to correspond to the left and right eyes E and E respectively. Each main body 1 mainly contains a predetermined supercooled solution L that generates heat due to phase transition. Specifically, as shown in FIGS. 2A and 2B, a first storage unit 11 in which a predetermined solution L is stored, and a crystallization start unit that starts crystallization of the predetermined solution L. A second housing portion 12 in which P is housed, and a partition portion 13 that holds the first housing portion 11 and the second housing portion 12 in a non-communication state are provided.
Moreover, the main-body part 1 has 1st and 2nd packaging member 1A, 1B, and the predetermined location of the 1st and 2nd packaging member 1A, 1B piled up by the predetermined press bonding method (for example, heat seal etc.). By bonding, the 1st accommodating part 11, the 2nd accommodating part 12, and the partition part 13 are formed.

The first packaging member 1A is provided on the skin side of the wearer H, while the second packaging member 1B is provided on the side opposite to the skin of the wearer H. The first and second packaging members 1A and 1B are formed in, for example, substantially the same shape, and have a length (width) in the X direction (left-right direction) sufficient for the main body 1 to cover the eyes E during use. It has a length in the Y direction (direction extending from the eyebrow H1 to the cheek H2).
The first and second packaging members 1A and 1B are made of a predetermined material in consideration of strength, durability, and the like. Examples of the material for the first and second packaging members 1A and 1B include films such as polyethylene (PE), low density polyethylene (LDPE), polypropylene (PP), polyethylene terephthalate (PET), polyamide (PA), and the like. The laminated body which laminated | stacked the kind of film etc. are mentioned.

The 1st accommodating part 11 and the partition part 13 are formed by the 1st and 2nd packaging member 1A, 1B piled up in the predetermined direction (for example, Z direction) being bonded together, for example in a substantially "B" shape. Is done.
That is, a predetermined solution L (which may be in a supercooled state or before being supercooled) is disposed at a predetermined position on the first and second packaging members 1A, 1B. In this state, the first bonding portion 14 is formed by bonding the periphery thereof in a substantially “B” shape. Thereby, while the 1st accommodating part 11 is comprised inside the 1st bonding part 14, the partition part 13 is comprised by a part (for example, part on the eyebrow H1 side etc.) in the said 1st bonding part 14. FIG. The
Thus, the 1st bonding part 14 is formed so that the circumference | surroundings of the 1st accommodating part 11 may be enclosed (separate inside and outside).

The first storage unit 11 has, for example, a substantially rectangular shape in plan view, and the first storage unit 11 stores a predetermined solution L in a supercooled state.
The predetermined solution L is an aqueous solution in which a predetermined salt is dissolved in water at a predetermined concentration. Specifically, the predetermined solution L is, for example, dissolved in a predetermined amount of water (by heating if necessary) so as to be in a supersaturated state, and is in a supercooled state. Is.
Here, as the predetermined salt, inorganic hydration such as anhydrous sodium acetate, sodium acetate trihydrate, sodium sulfate decahydrate, calcium chloride hexahydrate, sodium pyrophosphate decahydrate, barium hydroxide hexahydrate, etc. Examples thereof include a mixed salt of an inorganic hydrated salt in which the melting point is adjusted by blending a salt and other salts, paraffin, polyethylene glycol, fatty acid, and the like. Among these, sodium acetate trihydrate and sodium sulfate decahydrate are preferable.

  For example, when sodium acetate trihydrate is in a supercooled state, for example, sodium acetate trihydrate and water are mixed and then heated to dissolve sodium acetate trihydrate, or sodium acetate trihydrate and water are mixed. It is necessary to dissolve sodium acetate trihydrate by heating after filling the container.

The predetermined solution L is added with an adjusting agent that adjusts the softness in a state where the predetermined solution L is crystallized.
Examples of the regulator include monohydric alcohols such as ethanol, polyhydric alcohols such as glycerin and polyethylene glycol (PEG), polysaccharides such as fructose and cyclodextrin, and the like. These monohydric alcohols, polyhydric alcohols, and polysaccharides may be used individually as adjusting agents, or may be used in combination. That is, the adjusting agent may contain at least one of alcohol and polysaccharide.
Here, the alcohol has a smaller molecular weight than the polysaccharide and the molecular structure is not complicated, so that it is easy to become familiar with the predetermined salt and water contained in the predetermined solution L. Therefore, when it is necessary to maintain sufficient softness in the crystallized state, it is preferable to mainly use alcohol (particularly polyhydric alcohol), and to maintain a certain degree of hardness in the crystallized state. When necessary, it is preferable to use mainly polysaccharides.

Moreover, the adjusting agent is added to the predetermined solution L so that it may become 5-20 [weight%].
If the lower limit is less than 5% by weight, sufficient softness cannot be maintained in a state in which the predetermined solution L is crystallized, and fit to a worn part (for example, an eye E part). This is because it gets worse. Further, if the upper limit exceeds 20 [wt%], the predetermined solution L cannot be sufficiently crystallized, and sufficient heat of solidification cannot be generated due to phase transition.

The partition portion 13 has a lower bonding strength than other portions of the first bonding portion 14.
That is, when the first and second packaging members 1 </ b> A and 1 </ b> B are bonded together by a predetermined pressure bonding method to form the first bonded portion 14, the partition portion 13 is the other portion of the first bonded portion 14. Is pressed at a low temperature (details will be described later). Thereby, the intensity | strength of bonding of the partition part 13 becomes low with respect to the intensity | strength of bonding of the other part in the said 1st bonding part 14. FIG.

In addition, the bonding strength of the partition portion 13 is such that it is peeled off by pressure applied from at least one of the first housing portion 11 and the second housing portion 12 (for example, the first housing portion 11 etc.). Is set to
That is, the partition part 13 partitions the first storage part 11 and the second storage part 12 in a non-use state of the eye heating device 100, and is thereby stored in the first storage part 11. The predetermined solution L and the crystallization start part P stored in the second storage part 12 are held so as not to contact each other.
And when using the said heating tool 100 for eyes, at least one accommodating part (for example, 1st accommodating part 11 grade | etc.,) Among the 1st accommodating part 11 and the 2nd accommodating part 12 is the other accommodating part (for example, for example). When the user pressurizes the second container 12 and the like), the partition 13 is peeled off, and the inside of the first container 11 and the inside of the second container 12 (the crystallization start part P). Existing space). As a result, the predetermined solution L stored in the first storage unit 11 and the crystallization start part P stored in the second storage unit 12 are brought into contact with each other.
In addition, the user of the eye heating tool 100 is not limited to the wearer H of the eye heating tool 100, and may be an assistant who assists the use of the eye heating tool 100.

Moreover, the length (width | variety) of the left-right direction is narrow, so that the partition part 13 leaves | separates to the eyebrow H1 side rather than the 1st accommodating part 11. That is, the partition part 13 formed in a substantially trapezoidal shape in plan view is formed on the eyebrow H1 side of the first housing part 11 formed in a substantially rectangular shape in plan view. And the 2nd accommodating part 12 is formed so that the length (width | variety) of the left-right direction of the partition part 13 may adjoin the upper bottom part which is the narrowest.
In addition, among the parts on the eyebrow H1 side in the first bonding part 14, the parts other than the partitioning part 13 have higher bonding strength than the partitioning part 13 in the same manner as other parts in the first bonding part 14. Has been.
In addition, the shape of the partition part 13 is an example, is not restricted to this, It can change arbitrarily arbitrarily.

The second storage unit 12 stores a crystallization start unit P that starts crystallization of the predetermined solution L stored in the first storage unit 11.
The second housing portion 12 has a portion on the opposite side of the first housing portion 11 across the partition portion 13 in the first and second packaging members 1A and 1B overlapped in a predetermined direction (for example, the Z direction). It is formed by bonding by a predetermined pressure bonding method (for example, heat sealing). That is, the first and second packaging members 1 </ b> A and 1 </ b> B are bonded in a gate shape closer to the eyebrow H <b> 1 than the first housing portion 11, thereby forming the second bonding portion 15. Specifically, the first and second packaging members 1A and 1B are attached to the second bonding portion 15 so as to be adjacent to the eyebrow H1 side portion (the portion including the partition portion 13) of the first bonding portion 14. Are combined. Thereby, the 2nd accommodating part 12 in which the crystallization start part P is accommodated inside the 2nd bonding part 15 is comprised.

The crystallization start part P is, for example, a fine crystal obtained by crystallizing the predetermined solution L stored in the first storage part 11, and the crystallization of the predetermined solution L is brought into contact with the predetermined solution L. To start.
Here, as a heating element (for example, a body warmer) using a phase transition (crystallization) of a conventional supercooled solution, for example, when a metal dish-shaped curved piece existing in the solution is inverted by an external pressure The one that starts crystallization of the supercooled solution by using the impact of the above is known.
However, in the crystallization start method as described above, for example, there are many cases where crystallization cannot be reliably started in one operation, and the metal bending piece is relatively large so that it can be reversed. The problem that it is difficult to reduce the size because a size is required, and if it is damaged, a hard metal curved piece is exposed, causing damage to the outside of the eye heating device 100 There is a problem that not only there is a concern, but there is also a possibility of corrosion during long-term storage. Furthermore, there is a risk of heating in a microwave oven or the like by mistake.
In order to solve the above problem, in the present invention, a fine crystal obtained by crystallizing the predetermined solution L is used as the crystallization start part P, and the fine crystal and the predetermined solution L are brought into contact with each other. Crystallization of a predetermined solution L is started.

Moreover, a predetermined amount of fine crystals as the crystallization start portion P is attached to the inner surface of one of the first and second packaging members 1A and 1B (for example, the first packaging member 1A). . The crystallization start part P is adhered by, for example, being applied to the inner surface of one of the packaging members by a predetermined application method.
Here, as the predetermined coating method, for example, a coating method using various general coaters such as a die coater, a curtain coater, a blade coater, and a gravure coater, gravure printing, flexographic printing, silk screen printing, etc. A predetermined printing method is exemplified. In the coating method, a gravure coater, a cylindrical blade coater, a slot die coater or the like capable of applying a stripe pattern to a predetermined portion of the packaging member (base material) is preferable.
Specifically, for example, one of the first and second packaging members 1A, 1B can be printed on a predetermined position on the inner surface of one of the packaging members by printing a fine crystal by a predetermined printing method. Fine crystals are attached (applied) to the inner surface of the packaging member.
Here, the position where the fine crystal is applied to one of the packaging members is the position inside the second bonding portion 15, that is, the portion where the first and second packaging members 1A and 1B are bonded (first bonding). In the mating portion 14), the partition portion 13 is adjacent to the opposite side of the first accommodating portion 11 in the position.
Thus, the 2nd accommodating part 12 is provided in the edge part side (for example, the edge part side by the side of the eyebrow H1, etc.) of the main-body part 1. FIG.

Each of the pair of ear hooks 2, 2 is provided continuously on both side portions of each main body 1 in the left-right direction (X direction).
Moreover, the ear hook part 2 is comprised from the raw material which has a stretching property, and is specifically comprised from the nonwoven fabric, the woven fabric, paper, the resin film etc., for example.

Next, regarding the mode of change when the predetermined solution L accommodated in the first accommodating portion 11 is crystallized, FIGS. 1 (a) and 1 (b) and FIGS. 3 (a) and 3 (b). ) Will be described.
FIGS. 3A and 3B are diagrams for explaining crystallization of the predetermined solution L accommodated in the main body 1 of the eye heating device 100, and are shown in FIG. The state changes to the state shown in FIG. In FIGS. 3A and 3B, the pattern of the predetermined solution L is changed between a liquid state and a crystallized state.

First, when using the heating device for eyes 100, each main body 1 is worn so as to cover each of the left and right eyes E and E of the wearer H, and a pair of ear hooks 2 and 2 are worn by the wearer H. It is hung on the ear (see FIG. 1 (a) and FIG. 1 (b)).
In this state, the first storage unit 11 and the second storage unit 12 are partitioned by the partition unit 13, and the predetermined solution L stored in the first storage unit 11 and the crystal stored in the second storage unit 12. The predetermined solution L is in a liquid state because it does not come into contact with the conversion start portion P. For this reason, when the wearer H wears the eye heating tool 100 with the front of the face facing upward, the main body 1 (particularly, the first accommodating portion 11) moves the eyes E and around the eyes E due to gravity. It deforms along the unevenness and fits to the eyes E and the periphery of the eyes E.

Next, of the first storage part 11 and the second storage part 12, for example, when the first storage part 11 is pressurized by the user toward the second storage part 12, the partition part 13 is peeled off, The inner side of the 1st accommodating part 11 and the inner side of the 2nd accommodating part 12 will be in a communication state. And when the predetermined solution L accommodated in the 1st accommodating part 11 and the crystallization start part P accommodated in the 2nd accommodating part 12 contact | connect, the crystallization of the said predetermined solution L will start. Further, when the predetermined solution L undergoes phase transition, solidification heat is generated, and heat is applied from the eye heating device 100 to the eyes E and the surroundings of the eyes E, which are the wearing sites of the wearer H.
Here, since the crystallization start part P is arrange | positioned at the edge part by the side of the eyebrow H1 of the main-body part 1, the crystal | crystallization of the predetermined | prescribed solution L extends from the eyebrow H1 side to the cheek H2 side (FIG. 3 (a)). Medium (in the direction indicated by the white arrow) gradually grows (see FIG. 3A), and finally, all of the predetermined solution L stored in the first storage unit 11 has crystallized. It will be in a state (refer to Drawing 3 (b)).
That is, the predetermined solution L is crystallized from the eyebrow H1 side to the cheek H2 side of the main body 1 in a state where the main body 1 is deformed along the unevenness around the eyes E and the eyes E. The fit to the periphery of the eye E is not impaired.

Next, a method for manufacturing the eye heating device 100 will be described.
First, of the first and second packaging members 1A and 1B, a step (attachment step) of attaching the crystallization start portion P to a predetermined position on the inner surface of one of the packaging members (for example, the first packaging member 1A or the like) is performed. . Specifically, in a state where the first and second packaging members 1A and 1B are bonded together, the inner side of the position to become the second bonding portion 15 on the inner surface of one of the packaging members (the first accommodating portion 11 of the partition portion 13). The crystallization start part P is attached to a position corresponding to a position adjacent to the opposite side).

Next, in the first and second packaging members 1A and 1B, a predetermined position on the inner surface of one of the packaging members (for example, the first packaging member 1A) is overcooled or predetermined before being overcooled. The step (arrangement step) of disposing the solution L is performed. Specifically, in a state where the first and second packaging members 1 </ b> A and 1 </ b> B are bonded together, a predetermined solution L is disposed on the inner side of the position that becomes the first bonding portion 14 on the inner surface of one of the packaging members.
Note that the order of the attaching step and the arranging step is an example and is not limited to this, and can be arbitrarily changed as appropriate. For example, the attaching step may be performed after the arranging step.

  Next, in a state where the first and second packaging members 1A and 1B are overlapped in a predetermined direction, the portion other than the partition portion 13 in the first bonding portion 14 and the second bonding portion 15 are relatively high in temperature. A step (high temperature pressure bonding step) is performed by pressure bonding by a predetermined pressure bonding method (for example, heat sealing). Thereby, other parts other than the partition part 13 (part) in the 1st bonding part 14 which is a part by which 1st and 2nd packaging member 1A, 1B are bonded together are comparatively high temperature by a predetermined crimping | compression-bonding method. Crimped together.

Next, the partitioning portion 13 (a part of the portion where the first and second packaging members 1A and 1B are bonded together) in the first bonding portion 14 is bonded and bonded by a predetermined bonding method at a relatively low temperature. (Low-temperature press bonding step) is performed to complete the manufacture of the eye heating tool 100.
For example, heat sealing or the like can be applied to the low-temperature press-bonding step, similarly to the high-temperature press-bonding step.

  Note that the order of the high-temperature pressure bonding step and the low-temperature pressure bonding step is an example and is not limited to this, and can be arbitrarily changed as appropriate. For example, the high-temperature pressure bonding step may be performed after the low-temperature pressure bonding step.

  Examples of the present invention and comparative examples will be described below.

<Evaluation test of crystallization of aqueous solution>
Regarding the feeling of warmth, fit, sustainability, softness / hardness of crystals when the concentration [wt%] of the predetermined salt contained in the predetermined solution is changed, refer to the following Comparative Examples 1 to 6 explain.

(Aqueous solution)
Solvent: Water salt: Sodium acetate trihydrate Concentration: A predetermined amount of sodium acetate trihydrate is dissolved in water, so that the content of sodium acetate becomes 36, 40, 46, 52, 58, 62 [wt%] Thus, the supercooled one was used. An aqueous solution of each concentration of sodium acetate was used as a test body <Comparative Examples 1 to 6>.

(Crystallization start part)
Crystallization start part: A small amount of fine crystals obtained by crystallizing sodium acetate was used.
In addition, since the fine crystal | crystallization of sodium acetate is a trace amount (very small amount), it shall not have influence on the density | concentration change of the predetermined salt contained in a predetermined solution.

(Packaging material)
First and second packaging members: A laminated film in which low density polyethylene (LDPE) and polyethylene (PE) were laminated was used.
Dimension of each packaging member: 60 × 60 [mm] was set as a size capable of covering one eye and its periphery.
In addition, a first storage portion and a second storage portion are formed at predetermined positions of the first and second packaging members with a partition portion, and a supercooled aqueous solution containing a predetermined concentration of sodium acetate is formed in the first storage portion. The crystallization start part was accommodated in the second accommodating part.

(Starting method of crystallization)
About each test body corresponding to Comparative Examples 1-6, a user pressurizes a 1st accommodating part to the 2nd accommodating part side, peels off a partition part, and the inside of a 1st accommodating part and the inside of a 2nd accommodating part Was in communication. And the aqueous solution accommodated in the 1st accommodating part and the crystallization start part accommodated in the 2nd accommodating part were made to contact, and crystallization of the aqueous solution of each test body was started.

(Evaluation of warm feeling)
With the front of the face facing upward, after crystallization of the aqueous solution of each test specimen, place it on either the left or right eyelid to observe the warmth associated with the exothermic reaction (crystallization) of a given solution. Evaluation was performed on the part of the eyelid and the part around the eye (dent).
Sensory evaluation of the warm feeling at this stage is performed in three stages. Specifically, when feeling warmth, it is written as “3”, when it feels somewhat warm, it is written as “2”, when it does not feel warmth at all. Indicated as “1”.

(Evaluation of fit)
The fit of each specimen was comprehensively evaluated together with sensory evaluation of warmth.
That is, the greater the degree of feeling warmth, the higher the fit, and the sensory evaluation of the fit in three stages. Specifically, if you feel warmth, it is determined that the fit is relatively high, and is expressed as “3”, and if you feel warmth, it is determined that the fit is not very high, and is expressed as “2”. If the warmth is not felt at all, it is determined that the fit is not high and is expressed as “1”.

(Evaluation of sustainability of warm feeling)
The warm feeling was evaluated after 10 minutes with each specimen placed on the eye.
Sensory evaluation of the warm feeling at this stage is performed in three stages. Specifically, when feeling warmth, it is written as “3”, when it feels somewhat warm, it is written as “2”, when it does not feel warmth at all. Indicated as “1”.

(Evaluation of softness and hardness)
The softness and hardness after 30 minutes from the start of the exothermic reaction (crystallization) of the aqueous solution of each test specimen were subjected to sensory evaluation. Specifically, when it is relatively soft, it is expressed as “soft”, and when it is relatively hard, it is expressed as “hard”. When the exothermic reaction (crystallization) of the aqueous solution does not proceed (still in a liquid state), it is expressed as “none” although it feels soft.

[Evaluation]
As shown in Table 1, when the content of sodium acetate in the aqueous solution was 36 [% by weight] (Comparative Example 1), crystallization of the aqueous solution did not proceed and the solution was still in a liquid state.
Further, when the content of sodium acetate in the aqueous solution is 40 [wt%] (Comparative Example 2), although the crystallization of the aqueous solution has progressed, the calorific value is small, and thus the portion that is easily in contact with the specimen Felt warmth, but did not feel warmth around the eyes, which was difficult to contact with the specimen.

When the content of sodium acetate in the aqueous solution was 46 [wt%] or more (Comparative Examples 3 to 6), crystallization of the aqueous solution proceeded and a sufficient calorific value was obtained. As a result, although the eyes that were easy to contact with the test specimen felt warm, the surroundings of the eyes that were difficult to contact with the test specimen were hard to feel because the crystals of the aqueous solution of the test specimen were hard. In particular, when the content of sodium acetate in the aqueous solution was 52% by weight or more (Comparative Examples 4 to 6), the area around the eyes did not feel warm.
In addition, when the content of sodium acetate in the aqueous solution was 40 [wt%], the warmth was not felt after 30 minutes from the start of the exothermic reaction (crystallization) of the aqueous solution, but the sodium acetate in the aqueous solution The sustainability was also improved as the content of was increased, and when the content of sodium acetate was 58 [wt%], the warmth was felt even after 30 minutes.

  As a result, in consideration of warmth and sustainability, it is considered better to increase the content of sodium acetate in the aqueous solution. However, when the crystals of the aqueous solution become harder, the fit becomes worse, and the softness / hardness of the crystals. It is considered necessary to add a regulator to adjust the viscosity.

<Evaluation test of regulator>
The warmth, fit, sustainability, and softness / hardness of crystals when various kinds of adjusting agents are added at predetermined concentrations will be described with reference to the following Examples 1 to 5.

(Aqueous solution)
Solvent: Water salt: Sodium acetate trihydrate Conditioner: Ethanol <Example 1>, Glycerin <Example 2>, PEG <Example 3>, Cyclodextrin <Example 4>, Ethanol + Glycerin <Example 5>
Concentration: A predetermined amount of sodium acetate trihydrate and various regulators are dissolved in water, and the sodium acetate content and various regulators are adjusted to a predetermined weight% (concentration). Was used.
<Example 1>
The content of sodium acetate was adjusted to 52 [wt%], and the content of ethanol (79.15%) was adjusted to 10 [wt%].
<Example 2>
The content of sodium acetate was adjusted to 52 [wt%], and the content of glycerin was adjusted to 13 [wt%].
<Example 3>
The content of sodium acetate was adjusted to 46 [wt%], and the content of PEG was adjusted to 12 [wt%].
<Example 4>
The content of sodium acetate was adjusted to 46 [wt%], and the content of cyclodextrin was adjusted to 12 [wt%].
<Example 5>
The content of sodium acetate was adjusted to 51 [wt%], the content of ethanol (79.15%) was adjusted to 6 [wt%], and the content of glycerin was adjusted to 7 [wt%].

(Crystallization start part)
The crystallization start part is the same as the evaluation test for crystallization of the aqueous solution, and a detailed description thereof is omitted.

(Packaging material)
The packaging member is the same as the above-described evaluation test for crystallization of an aqueous solution, in which the supercooled aqueous solutions of Examples 1 to 5 were accommodated in the first accommodating portion, and the crystallization start portion was accommodated in the second accommodating portion. .

(Starting method of crystallization)
The method for initiating crystallization is the same as the above-described evaluation test for crystallization of an aqueous solution, and a detailed description thereof will be omitted.

(Evaluation of warm feeling)
The evaluation method of warm feeling is the same as the above-described evaluation test for crystallization of an aqueous solution, and detailed description thereof is omitted.

(Evaluation of fit)
The method for evaluating the fit is the same as the above-described evaluation test for crystallization of an aqueous solution, and a detailed description thereof is omitted.

(Evaluation of sustainability of warm feeling)
The evaluation method of the persistence of warm feeling is the same as the above-described evaluation test for crystallization of an aqueous solution, and the detailed description thereof is omitted.

(Evaluation of softness and hardness)
The evaluation method of softness / hardness is the same as the above-described evaluation test for crystallization of an aqueous solution, and detailed description thereof is omitted.

[Evaluation]
As shown in Table 2, the sodium acetate content was adjusted to 46 [wt%] or more in consideration of the warmth and durability of the test specimen. ] In the above, in the case of aqueous solutions containing various alcohols such as ethanol and glycerin at a predetermined concentration (Examples 1, 2, and 5), the crystals of the aqueous solutions of the respective test specimens retain sufficient softness. Not only the eyes that are easy to contact with the body, but also the surroundings of the eyes that are difficult to contact with the test body felt warmth. In addition, warmth was felt even 30 minutes after the start of the exothermic reaction (crystallization) of the aqueous solution of each specimen.

  Further, when the content of sodium acetate in the aqueous solution is 46 [wt%] and the content of PEG (alcohol) is 12 [wt%] (Example 3), the content of cyclodextrin (polysaccharide) When the weight is set to 12% by weight (Example 4), since the crystals of the aqueous solution of each test specimen are sufficiently soft, the eyes that are easy to contact with the test specimen feel warm. I also felt a little warmth around my eyes, which is hard to come into contact with the specimen. In addition, the evaluation of fit deteriorated with a decrease in warmth around the eyes.

  As a result, it is considered that sufficient softness can be imparted to the crystals of the aqueous solution by using alcohol or polysaccharide as a regulator. Further, when the content of sodium acetate in the aqueous solution was 51 [wt%] or more, the best results were obtained in terms of warmth, fit, sustainability, and crystal softness.

<Evaluation test of concentration of regulator>
Refer to Examples 6 to 9 and Comparative Examples 7 and 8 below for warmth, fit, durability, and softness / hardness of crystals when the concentration of the adjusting agent contained in a given solution is changed. I will explain.

(Aqueous solution)
Solvent: Water salt: Sodium acetate trihydrate Conditioner: Ethanol (79.15%)
Concentration: Taking into account the warmth and durability of the test specimen, a predetermined amount of sodium acetate trihydrate is dissolved in water and adjusted so that the sodium acetate content is 52% by weight, and ethanol is added. The content of was adjusted to be a predetermined weight% (concentration), and the supercooled one was used.
<Comparative Example 7>
The water content was adjusted to 45 [wt%] so that the ethanol content was 3 [wt%].
<Example 6>
The water content was adjusted to 43 [wt%] so that the ethanol content was 5 [wt%].
<Example 7>
The water content was adjusted to 38 [wt%] so that the ethanol content was 10 [wt%].
<Example 8>
The water content was adjusted to 33 [wt%] so that the ethanol content was 15 [wt%].
<Example 9>
The water content was adjusted to 28 [wt%] so that the ethanol content was 20 [wt%].
<Comparative Example 8>
The water content was adjusted to 23 [wt%] so that the ethanol content was 25 [wt%].

(Crystallization start part)
The crystallization start part is the same as the evaluation test for crystallization of the aqueous solution, and a detailed description thereof is omitted.

(Packaging material)
The packaging member is the same as the evaluation test for crystallization of the aqueous solution described above. The start-up part was accommodated.

(Starting method of crystallization)
The method for initiating crystallization is the same as the above-described evaluation test for crystallization of an aqueous solution, and a detailed description thereof will be omitted.

(Evaluation of warm feeling)
The evaluation method of warm feeling is the same as the above-described evaluation test for crystallization of an aqueous solution, and detailed description thereof is omitted.

(Evaluation of fit)
The method for evaluating the fit is the same as the above-described evaluation test for crystallization of an aqueous solution, and a detailed description thereof is omitted.

(Evaluation of sustainability of warm feeling)
The evaluation method of the persistence of warm feeling is the same as the above-described evaluation test for crystallization of an aqueous solution, and the detailed description thereof is omitted.

(Evaluation of softness and hardness)
The evaluation method of softness / hardness is the same as the above-described evaluation test for crystallization of an aqueous solution, and detailed description thereof is omitted.

[Evaluation]
As shown in Table 3, when the content of ethanol in the aqueous solution was 3% by weight (Comparative Example 7), crystallization of the aqueous solution progressed to obtain a sufficient calorific value, and contacted with the specimen. The eyes, which are easy to do, felt warm. However, since the crystals of the aqueous solution of the test specimen were hard, the surroundings of the eyes that were difficult to contact with the test specimen did not feel warm.

When the content of ethanol in the aqueous solution is 5% by weight or more (Examples 6 to 9), since the crystals of the aqueous solution of each test specimen maintain sufficient softness, the portion that easily comes into contact with the test specimen Not only the eyes, but also the surroundings of the eyes, which are difficult to contact with the specimen, felt warm. In particular, when the content of ethanol in the aqueous solution is 5 [wt%] and 10 [wt%] (Examples 6 and 7), 30 starts after the exothermic reaction (crystallization) of the aqueous solution of each specimen started. I felt warmth even after minutes.
Further, when the content of ethanol in the aqueous solution is 15 [wt%] or more (Examples 8 and 9), the crystals of the aqueous solution of each test specimen retain sufficient softness, but the aqueous solution of each test specimen. At the time after 30 minutes from the start of the exothermic reaction (crystallization), the calorific value was insufficient, and the warmth was somewhat felt.

  When the content of ethanol in the aqueous solution was 25 [wt%] (Comparative Example 8), crystallization of the aqueous solution did not proceed and the solution was still in a liquid state.

  As a result, in order to impart sufficient softness to the crystals of the aqueous solution, it is considered that the adjusting agent is preferably added to the aqueous solution so as to be 5 to 20% by weight. When the ethanol content in the aqueous solution was 10% by weight, the best results were obtained in terms of warmth, fit, sustainability, and crystal softness.

  As described above, according to the eye heating device 100 of the present embodiment, the first and second packaging members 1A and 1B of the main body 1 in which the supercooled predetermined solution L that generates heat due to the phase transition is accommodated. Among them, by contacting the predetermined solution L so as to be adjacent to a part of the inner surface of one packaging member on the side opposite to the first accommodating portion 11 in a portion where the first and second packaging members 1A and 1B are bonded together. A portion of the portion where the crystallization start part P for starting crystallization of the predetermined solution L is attached and the first and second packaging members 1A and 1B are bonded together is in a non-use state of the eye heating device 100. The first storage portion 11 and the crystallization start portion P are separated from each other, and the first storage portion 11 and the crystallization start portion P are peeled off by pressure applied from at least one of the first storage portion 11 side and the crystallization start portion P side during use. Inside the housing 11 and start of crystallization Since the space where P exists is communicated, a predetermined solution L and a crystallization start part are used in a non-use state of the eye heating device 100 by a part of the portion where the first and second packaging members 1A and 1B are bonded together. On the other hand, when the eye heating device 100 is used, it is added by the user from at least one of the first housing portion 11 side and the crystallization start portion P side. When pressed, a part of the portion where the first and second packaging members 1A and 1B are bonded is peeled off, and the inside of the first accommodating portion 11 and the space where the crystallization start portion P exists are in communication with each other. The predetermined solution L accommodated in the 1 accommodating part 11 and the crystallization start part P can be made into a contactable state. Therefore, it is possible to simplify the structure that holds the predetermined solution L and the crystallization start portion P that are in a supercooled state in a non-use state, and suppress a reduction in manufacturing efficiency and an increase in cost of the eye heating device 100. be able to.

  Furthermore, since the crystallization start part P is applied to the inner surface of one of the first and second packaging members 1A and 1B by a predetermined application method, the crystallization start part P is disposed. It can carry out simply and can suppress the fall of the manufacturing efficiency of the said heating device 100 for eyes, and a cost increase.

  In addition, a portion of the portion where the first and second packaging members 1 </ b> A and 1 </ b> B are bonded together has a lower bonding strength with respect to other portions other than the portion. When the first and second packaging members 1A and 1B are bonded to each other, the part where the first and second packaging members 1A and 1B are bonded can be easily peeled off. Specifically, the first and second packaging members 1A and 1B are attached by simply pressing a part of the portion where the first and second packaging members 1A and 1B are bonded to each other at a low temperature. The eye heating device 100 can be manufactured so that the strength of the bonding of a part of the combined part is lower than that of the other part, and a reduction in manufacturing efficiency and cost increase of the eye heating device 100 can be suppressed. can do.

  Further, a crystallization start portion P for starting crystallization of the predetermined solution L is disposed on one end portion side of the main body portion 1 in which the predetermined solution L in a supercooled state that generates heat due to phase transition is accommodated. Therefore, when the crystallization of the predetermined solution L is started by the crystallization start part P, the crystallization of the predetermined solution L proceeds from one end side to the other end side of the main body part 1. The crystal | crystallization of the predetermined solution L can be grown along the unevenness | corrugation of the part of E, and the fitting property of the said heating tool 100 for eyes with respect to the part of the uneven | corrugated eye E can be improved.

  Further, a crystallization start portion P that starts crystallization of the predetermined solution L by being in contact with the predetermined solution L is held on the end portion side of the main body 1 so as not to contact the predetermined solution L. Therefore, the crystallization of the predetermined solution L can be started by bringing the crystallization start part P into contact with the predetermined solution L.

  Moreover, the partition part 13 which hold | maintains the 1st accommodating part 11 and the 2nd accommodating part 12 in a non-communication state is a pressure applied from the at least one accommodating part side among the 1st accommodating part 11 and the 2nd accommodating part 12. Since the first container 11 and the second container 12 are brought into communication with each other, the predetermined solution L stored in the first container 11 and the crystal stored in the second container 12 are removed. It can be made the state which can be in contact with the conversion start part P. Thereby, crystallization of the predetermined solution L starts when the crystallization start part P and the predetermined solution L come into contact with each other.

  Moreover, since the adjusting agent which adjusts the softness in the state which the said predetermined solution L crystallized is added to the predetermined solution L, sufficient softness in the state where the predetermined solution L was crystallized is added. The thickness can be maintained, and the fit to the portion of the eye E to be worn can be further improved.

  In addition, the body portion 1 of the eye heating device 100 contains a predetermined solution L in a supercooled state that generates heat due to phase transition, and the predetermined solution L is in a state where the predetermined solution L is crystallized. Since a predetermined amount of the adjusting agent for adjusting the softness is added, the softness can be maintained in a state where the predetermined solution L is crystallized. For example, when worn on a joint, etc., it can maintain sufficient softness to follow the movement of the movable part, and when worn on a fractured part, etc., to suppress the movement of the movable part The required hardness can be maintained. Therefore, it is possible to provide the eye heating device 100 with improved fit to the part to be worn.

Further, the predetermined solution L is an aqueous solution in which a predetermined salt is dissolved in water, and the adjusting agent includes at least one of alcohol and polysaccharide. Therefore, the predetermined solution L includes alcohol and polysaccharide. By adding a predetermined amount of at least one, the softness can be maintained in a state where the predetermined solution L is crystallized.
In particular, it is desirable to adjust the addition amount of the regulator with respect to the predetermined solution L to 5 to 20 [% by weight]. That is, if the lower limit is less than 5% by weight, sufficient softness cannot be maintained in a state where the predetermined solution L is crystallized, and the fit with respect to the worn portion will deteriorate. is there. Further, if the upper limit exceeds 20 [wt%], the predetermined solution L cannot be sufficiently crystallized, and sufficient heat of solidification cannot be generated due to phase transition.

  Further, since the main body 1 is provided with a crystallization start part P for starting the crystallization of the predetermined solution L accommodated in the main body 1, the crystallization of the predetermined solution L is performed by the crystallization start part P. Can be started.

The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
Below, the modification of each structure of the heating element 100 for eyes which concerns on this invention is demonstrated. Note that points other than those described below are substantially the same as those in the above embodiment, and detailed descriptions thereof are omitted.

<Modification 1>
FIG. 4 is a diagram for explaining the main body 201 of the eye heating device 100 according to the first modification, and FIG. 4A is a plan view showing the main body 201 of the eye heating device 100. 4 (b) is a cross-sectional view of the main body 201 taken along line IV-IV in FIG. 4 (a).
As shown to Fig.4 (a) and FIG.4 (b), in the partition part 13 in the inner surface of one packaging member (for example, 1st packaging member 1A etc.) among 1st and 2nd packaging members 1A and 1B. A predetermined amount of particles Q having a predetermined shape is attached to the corresponding portions. The adhesion of the particles Q is, for example, applied to the inner surface of at least one of the packaging members and a portion corresponding to a part of the portion where the first and second packaging members 1A and 1B are bonded together by a predetermined application method. Is done.
In addition, the application method of the particles Q is the same as the application method of the crystallization start part P in the above embodiment, and detailed description thereof is omitted. For example, for a predetermined position on the inner surface of one packaging member, By printing the particles Q having a predetermined shape by a predetermined printing method such as gravure printing, flexo printing, silk screen printing, etc., the particles Q having a predetermined shape are attached (applied) to the inner surface of the one packaging member.

Here, as the particles Q having a predetermined shape, various kinds of fillers such as inorganic substances and organic substances can be applied. Specific examples include heavy calcium carbonate, precipitated calcium carbonate, synthetic silica, and titanium oxide.
In addition, the shape, dimension, etc. of the particle | grains Q can be arbitrarily arbitrarily adjusted suitably according to the intensity | strength of the bonding of the partition part 13 so that it may mention later. For example, as the unevenness of the outer shape of the particle Q is relatively large or as the size of the particle Q is relatively large, the bonding strength is relatively reduced, while the unevenness of the outer shape of the particle Q is relatively The smaller the size is, or the smaller the size of the particle Q, the relatively higher the bonding strength.

  In addition, the partition portion 13 is attached to a portion corresponding to the partition portion 13 when the first and second packaging members 1A, 1B are bonded together by a predetermined pressure bonding method to form the first bonding portion 14. Then, pressure bonding is performed with the particles Q interposed. Thereby, the intensity | strength of bonding of the partition part 13 becomes low with respect to the intensity | strength of bonding of the other part in the said 1st bonding part 14. FIG.

Next, a method for manufacturing the eye heating device 100 of Modification 1 will be described.
First, of the first and second packaging members 1A, 1B, a step of attaching the crystallization start part P to a predetermined position on the inner surface of one of the packaging members (for example, the first packaging member 1A) (attachment of the crystallization start part) Step). This crystallization start part attaching step is substantially the same as the attaching step in the above embodiment, and a detailed description thereof is omitted.

  Next, a step of attaching a predetermined amount of particles Q having a predetermined shape to a predetermined position on the inner surface of one of the first and second packaging members 1A and 1B (for example, the first packaging member 1A) (particle adhesion) Step). Specifically, in a state where the first and second packaging members 1A and 1B are bonded together, a particle Q having a predetermined shape is formed on a portion corresponding to the partition portion 13 of the first bonding portion 14 on the inner surface of one packaging member. A predetermined amount is attached.

  Note that the order of the crystallization start part attaching step and the particle attaching step is an example and is not limited to this, and can be arbitrarily arbitrarily changed. For example, the crystallization start part attaching step is performed after the particle attaching step. You can go.

Next, in the first and second packaging members 1A and 1B, a predetermined position on the inner surface of one of the packaging members (for example, the first packaging member 1A) is overcooled or predetermined before being overcooled. The step (arrangement step) of disposing the solution L is performed. This arrangement step is substantially the same as the arrangement step in the above embodiment, and a detailed description thereof is omitted.
The placement step may be performed, for example, before the crystallization start portion attaching step and the particle attaching step, or any of the crystallization start portion attaching step and the particle attaching step performed earlier. It may be performed after the attaching step.

  Next, in a state where the first and second packaging members 1A and 1B are overlapped in a predetermined direction, the first bonding portion 14 and the second bonding portion 15 are bonded at a predetermined temperature at a predetermined pressure bonding method (for example, heat sealing). Etc.) is performed by pressure bonding (bonding step) to complete the manufacture of the eye heating tool 100. Thereby, 1st and 2nd packaging member 1A, 1B is crimped | bonded and bonded by the predetermined crimping | compression-bonding method in the state which interposes the particle | grains Q adhering to the part corresponding to the partition part 13. FIG.

  Therefore, according to the eye heating device 100 of Modification 1, when the first and second packaging members 1A and 1B of the main body 201 are bonded together by a predetermined pressure bonding method, the first and second packaging members 1A, The first and second packaging members are simply crimped to a part of the part to which 1B is bonded by interposing the particles Q having a predetermined shape attached to the part corresponding to the part, that is, by only one crimping operation. The eye heating device 100 can be manufactured so that the strength of bonding of a portion of the portion where 1A and 1B are bonded is lower than that of the other portion, and the manufacturing efficiency of the eye heating device 100 is reduced. And cost increase can be suppressed.

  Furthermore, the particle Q having a predetermined shape corresponds to a part of the inner surface of at least one of the first and second packaging members 1A and 1B and the portion where the first and second packaging members are bonded together. Since the portion is applied by a predetermined application method, the particles Q can be easily arranged, and the reduction in manufacturing efficiency and cost increase of the eye heating device 100 can be suppressed.

  Moreover, on the opposite side to the 1st accommodating part 11 of a part in the part where 1st and 2nd packaging member 1A, 1B is bonded together to the inner surface of one packaging member among 1st and 2nd packaging member 1A, 1B. Among the first and second packaging members 1A and 1B, the first and second packaging are the inner surfaces of at least one of the first and second packaging members 1A and 1B. The first and second packaging members 1A and 1B are bonded together after performing a particle attaching step of attaching a predetermined amount of particles Q having a predetermined shape to a portion corresponding to a part of the portion where the members 1A and 1B are bonded. The first and second packaging members 1A and 1B are bonded together by bonding a part of the part by a predetermined pressing method with the particles Q attached to the part corresponding to the part interposed therebetween. Packaging member 1A, The eye heating tool 100 can be manufactured such that the strength of bonding of a part of the part to which B is bonded is lower than that of the other part, and the manufacturing efficiency and cost of the eye heating tool 100 are reduced. Up can be suppressed.

In the above-described embodiment and Modification 1, a predetermined printing method is exemplified as a method for applying the crystallization start portion P and the particles Q having a predetermined shape. However, this is an example and the present invention is not limited thereto. The method for applying the crystallization start part P and the particles Q having a predetermined shape can be arbitrarily changed as appropriate. For example, the crystallization start part P and the particles Q having a predetermined shape may be applied by a coating method using various general coaters.
Furthermore, any one of the crystallization start part P and the particles Q having a predetermined shape may be applied by a coating method, and the other application may be performed by a predetermined printing method.

<Modification 2>
FIG. 5 is a diagram for explaining the main body 301 of the eye heating device 100 according to the second modification.
As shown in FIG. 5, the crystallization start part P adheres to each of a plurality of locations on the inner surface of one of the first and second packaging members 1A and 1B (for example, the first packaging member 1A). Has been. And the 1st and 2nd packaging members 1A and 1B are bonded together so that a plurality of crystallization start portions P,... Are separated from each other.
Specifically, on the eyebrow H1 side of the partition part 313 in the main body part 301, a plurality of second accommodation parts 312 in which the crystallization start parts P are accommodated are provided. The plurality of second accommodating portions 312 are formed, for example, in a substantially rectangular shape, and are arranged in parallel at a predetermined interval in the X direction (left-right direction).
Between the plurality of second accommodating portions 312,..., The first and second packaging members 1 </ b> A and 1 </ b> B are bonded with a bonding strength higher than that of the partition portion 313, and one end portion of the first accommodating portion 11 (for example, One end of the eyebrow H1 side, etc.). That is, a plurality of partition portions 313,... Are provided between each of the plurality of second storage portions 312,... And the first storage portion 11, and the inside of the first storage portion 11 and each crystal are formed by each partition portion 313. The space where the conversion start part P exists is partitioned off.

In addition, the bonding method between each partition part 313 and several 2nd accommodating part 312 ...... is the same as the bonding method in the said embodiment (for example, crimping methods, such as heat seal), The details Detailed explanation is omitted.
Moreover, the method of peeling each partition part 313 is also the same as the method demonstrated in the said embodiment, The detailed description is abbreviate | omitted.

  Further, the plurality of crystallization start portions P,... Are attached by being applied by a predetermined application method as in the above-described embodiment, and specifically, the first and second packaging members 1A, 1B. Among the positions corresponding to the plurality of second accommodating portions 312 on the inner surface of one of the packaging members, for example, the crystallization start portion P by a predetermined printing method such as gravure printing, flexographic printing, silk screen printing, or the like. Is printed, the plurality of crystallization start portions P,... Are attached to the inner surface of the one packaging member.

  Therefore, according to the eye heating device 100 of Modification 2, the crystallization start portion P is formed in each of the plurality of locations on the inner surface of one of the first and second packaging members 1A and 1B of the main body 301. Is attached and the first and second packaging members 1A, 1B are bonded together so that the plurality of crystallization start parts P,... Are separated from each other. , Each crystallization start part P can be brought into contact with a predetermined solution L individually, and the eye heating device 100 can be brought into contact with each other. Can be used repeatedly depending on the number of crystallization start parts P.

  In the second modification, a plurality of crystallization start portions P,... Are arranged side by side in a predetermined direction (for example, the X direction), but an arrangement position of the plurality of crystallization start portions P,. The number is merely an example, and is not limited thereto, and can be arbitrarily changed as appropriate. For example, one crystallization start part P may be provided for each of a predetermined number of sides of the first container 11 having a substantially rectangular shape so as to surround the first container 11, or the predetermined number A plurality of crystallization start portions P,... May be provided for each of the sides.

  Moreover, in the said embodiment and each modification, the left-right two main-body parts 1 (201, 301) are provided so that it may respond | correspond to each of the left-right both eyes E and E, and heat is independently applied to the corresponding eyes E. However, the configuration is not limited to this, and the shape of the main body 1 can be arbitrarily changed as appropriate. For example, the main body 1 may have a shape that is long in the left-right direction covering the left and right eyes E, E.

Furthermore, in the above-described embodiment and each modified example, as the arrangement position of the crystallization start portion P, the end portion side on the eyebrow H1 side of the main body portion 1 (201, 301) is illustrated, but this is an example. It is not restricted to this, It can change arbitrarily arbitrarily. That is, the position where the crystallization start part P is disposed may be any position as long as it is on the end side of the main body part 1, may be disposed on the cheek H2 side, or may be disposed on the ear side. May be.
Further, when the main body 1 has a long shape in the left-right direction covering the left and right eyes E, E, the crystallization start part P may be disposed on the substantially central nose side in the left-right direction.

  Moreover, in the said embodiment and each modification, although the structure which adhered the crystallization start part P to the inner surface of one packaging member among 1st and 2nd packaging members 1A and 1B was illustrated, it is an example. However, the present invention is not limited to this, and the housing structure of the crystallization start portion P can be arbitrarily changed as appropriate. That is, fine crystals of the predetermined solution L as the crystallization start part P may be stored in the second storage part 12, or the fine crystals and a predetermined oil may be mixed and used as a surfactant. The emulsion may be stored in the second storage unit 12.

  Furthermore, in the above-described embodiment and each modification, when the sodium acetate trihydrate is in a supercooled state, for example, acetic acid and sodium hydroxide anhydride or an aqueous solution may be mixed and used. In this case, since heat is generated by the neutralization reaction, the temperature of the mixture is increased by the heat, so that sodium acetate is dissolved, and it is considered that the liquid can be handled without heating.

  Moreover, in the said embodiment and each modification, although the eye heating tool 100 was illustrated and demonstrated as a heating tool, the said heating tool is not limited for eyes E use. That is, any heating tool can be used as long as it can be worn at a predetermined location such as a joint portion or a fracture location.

  In addition, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

100 Heater for eyes 1, 201, 301 Main body part 11 First housing part 12, 312 Second housing part 13 Partition part 14 First bonding part 15 Second bonding part L Predetermined solution P Crystallization start part Q Particles

Claims (7)

A heating device that applies heat to a site worn by a wearer,
A first container that contains a predetermined solution in a supercooled state that generates heat due to a phase transition, and a volume smaller than that of the first container, and crystallization of the predetermined solution by contacting the predetermined solution A main body portion that constitutes a second housing portion in which a crystallization start portion for starting the heat treatment is housed, and a partition portion that partitions the first housing portion and the second housing portion when the heating tool is not used. ,
It said body portion has a first and a second covering member,
In the first and second packaging members, the overlapped edge portions are bonded together, and the portions corresponding to the partition portions are bonded together , whereby the first storage portion and the second storage portion are combined. Formed,
One of the first and second covering member, the inner surface of the portion corresponding to the second accommodating portion of one of the packaging member, wherein the crystallization starting unit is attached,
The partition portion has a lower bonding strength with respect to other portions than the partition portion in the portion where the first and second packaging members are bonded, and the second storage from the first storage portion side. The width is gradually reduced toward the part side, and is peeled off by pressure applied from at least one of the first storage part side and the second storage part side during use, and the inside of the first storage part and the above A heating tool characterized by communicating with the inside of the second housing part . The crystallization starting portion, warming device according to claim 1, characterized in that formed by coating the fabric on the inner surface of the portion corresponding to the second housing portion of the one of the packaging member. The said partition part is crimped | bonded by the low temperature with respect to the said other part, and the intensity | strength of bonding is made low with respect to the said other part, The Claim 1 or 2 characterized by the above-mentioned. Heating tool. Of the first and second packaging members, particles are attached to the inner surface of at least one of the packaging members and corresponding to the partition portion ,
The partition part is formed by press-bonding the particles attached to a part corresponding to the partition part so that the bonding strength is reduced with respect to the other part. Item 3. A heating tool according to item 1 or 2 . The particles, the an inner surface of at least one of the covering member, warming device of claim 4, a portion corresponding to the partition portion, characterized by comprising a coating fabric. It is a manufacturing method of the heating tool of Claim 1 or 2 ,
One of the first and second covering member, the inner surface of the portion corresponding to the second accommodating portion of one of the covering member, the adhering step of adhering a pre Symbol crystallization initiation unit,
A hot crimping step of bonding by pressure wearing the first and other portions of the relatively high temperature other than the partition portion of the second packing member,
A low-temperature bonding step of bonding by pressure wear at relatively low temperatures the partition portion in the first and second covering member,
The manufacturing method of the heating tool characterized by including. It is a manufacturing method of the heating tool of Claim 1 or 2 ,
One of the first and second covering member, the inner surface of the portion corresponding to the second accommodating portion of one of the covering member, the crystallization start section attaching step of attaching the pre-Symbol crystallization initiation unit,
Of the first and second packaging members, a particle adhering step of adhering particles to the inner surface of at least one of the packaging members and corresponding to the partition portion ;
A bonding step of bonding said first and second wrapping members the partition portion with pressure wear with intervening the deposited the particles on a portion corresponding to the partition section,
The manufacturing method of the heating tool characterized by including.

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