WO2020129408A1

WO2020129408A1 - Heating tool

Info

Publication number: WO2020129408A1
Application number: PCT/JP2019/041974
Authority: WO
Inventors: 貞儒陳
Original assignee: 花王株式会社
Priority date: 2018-12-19
Filing date: 2019-10-25
Publication date: 2020-06-25
Also published as: CN113194892A; JPWO2020129408A1; JP7281484B2; TWI731458B; TW202037349A; KR20210034639A

Abstract

This heating tool (1) comprises: a main body part (2) having a shape that covers both eyes of a user during use; heat-generating bodies (3) provided in the main body part; and a pair of ear hook parts (4) that are attached to the main body part (2) and that can keep the main body part (2) covering both eyes of the user. The main body part (2) comprises a first sheet (5) located on the side close to the skin of the user, and a second sheet (6) located on the side away from the skin of the user. The first sheet (5) and the second sheet (6) are joined in such a manner that the heat-generating bodies (3) are held between the two sheets (5, 6), and in such a manner that non-joining regions (8) are formed between the two sheets (5, 6). In the heating tool (1), the main body part (2) and each of the ear hook parts (4) are joined to one another to form respective joining regions (9), while the joining regions (9) and the non-joining regions (8) between the two sheets (5, 6) overlap each other in the thickness direction of the heating tool.

Description

Heating equipment

The present invention relates to a heating tool.

The applicant has previously provided an eye mask including a horizontally long mask body that covers both eyes when worn, and a pair of ear hooks that are provided in the vicinity of both lateral ends of the mask body in the lateral direction and that hangs ears when worn. Proposed (see Patent Document 1). The mask body described in the document has a steam heat generating material, and the steam heat generated from the steam heat generating material can be uniformly applied to the wearer of the eye mask.

JP, 2008-295779, A

The present invention relates to a main body having a shape that covers both eyes of a user when in use, a heating element provided in the main body, and a state of being attached to the main body and covering both eyes of the user with the main body. And a pair of ear hooks capable of maintaining the temperature.
In one embodiment, the main body includes a first sheet located on the side closer to the user's skin and a second sheet located on the side farther from the user's skin.
In one embodiment, the 1st sheet and the 2nd sheet are joined so that the heating element may be held between both sheets and a non-joining field may be formed between both sheets.
In one embodiment, the main body portion and the ear hooking portion are joined to each other to form a joining region, and the joining region and the non-joining region overlap each other in the thickness direction of the heating tool.

Further, the present invention provides a main body having a shape that covers both eyes of a user during use, a heating element provided in the main body, and a covering of both eyes of the user attached to the main body by the main body. The present invention relates to a method for manufacturing a heating tool including a pair of ear hooks capable of maintaining a state.
In one embodiment, the main body includes a first sheet located on the side closer to the user's skin and a second sheet located on the side farther from the user's skin.
In one embodiment, the adhesive is applied to one surface of the second sheet so as to have a non-application portion.
In one embodiment, the first sheet and the second sheet are then arranged so that the adhesive application surfaces of the first sheet and the second sheet face each other and the heating element is held between the first sheet and the second sheet. The two sheets are joined together and a non-joined region is formed between the two sheets.
In one embodiment, after that, there is a step of joining the main body portion and the ear hooking portion.
In one embodiment, the main body portion and the ear hooking portion are joined together such that a joining region between the main body portion and the ear hooking portion and the non-joining region overlap each other in the thickness direction of the heating tool.

FIG. 1 is a plan view showing an embodiment of a heating tool of the present invention. FIG. 2 is an exploded perspective view of the heating tool shown in FIG. FIG. 3 is a cross-sectional view of the heating device shown in FIG. 1 taken along the longitudinal direction. FIG. 4 is a plan view showing an embodiment of a joining pattern of the first sheet and the second sheet. 5A to 5D are plan views showing another embodiment of the joining pattern of the first sheet and the second sheet. FIG. 6A is a plan view showing the arrangement positions of the joining region and the non-joining region. FIG. 6B is a sectional view taken along line AA of FIG. 7A is a plan view showing the arrangement positions of the linear joining region and the non-joining region, and FIG. 7B is a BB line showing the placing positions of the linear joining region and the non-joining region. FIG. FIG. 8: is a top view which shows another embodiment of the heating tool of this invention.

Detailed Description of the Invention

Since the heating tool described in Patent Document 1 has the connecting portion of the ear hooking portion joined thereto, the heating tool has low flexibility and poor fit and flexibility to the wearer's body. There was room for improvement.

Therefore, the present invention relates to a heating tool having improved fitability and flexibility to the wearer's body while maintaining the joint strength between the main body of the heating tool and the ear hook.

Hereinafter, the present invention will be described based on its preferred embodiments with reference to the drawings. FIG. 1 shows an embodiment of the heating device of the present invention. The warming tool 1 shown in the figure is of a so-called eye mask type, and is used to bring the water vapor heated to a predetermined temperature into contact with the human eyes so as to cover the eyes and the surroundings. Is used.

As shown in FIG. 1, the warming tool 1 includes a main body 2 that is long in the lateral direction X and has a shape that covers both eyes of the user during use, a heating element 3 provided in the main body 2, and a pair of ear hooks. And

parts

4 and 4. The ear hooks 4 are provided at both outer end regions of the main body 2 in the lateral direction X, and can be inverted toward the outside in the lateral direction X. As a result, the

ear hooks

4 and 4 can be hooked on the user's ears, respectively, and the state in which the main body 2 covers both eyes of the user can be maintained.

FIG. 2 shows an exploded perspective view of the heating tool 1. Moreover, FIG. 3 shows a cross-sectional view of the heating tool 1 along the lateral direction X (longitudinal direction). The main body 2 of the heating tool 1 shown in these figures includes a first sheet 5 located on the side closer to the user's skin and a second sheet 6 located on the side far from the user's skin. That is, the upper side in the figure is the side closer to the user's skin, and the lower side in the figure is the side far from the user's skin. The longitudinal direction of the main body 2 coincides with the lateral direction X of the heating tool. That is, the horizontal direction X of the heating tool 1 and the horizontal direction X of the main body portion 2 coincide with each other. In the following description, the lateral direction of each member will be described as a direction coinciding with the lateral direction X of the heating tool 1.

In one embodiment of the present invention, the first sheet 5 and the second sheet 6 shown in FIGS. 2 and 3 are bonded to each other by an adhesive 7 such as a hot-melt adhesive in a state where they are superposed, As a result, the two heating elements 3 can be held between the two sheets while being separated from each other. Instead of the adhesive 7, the first sheet 5 and the second sheet 6 may have a region indicated by reference numeral 7 joined by fusion such as heat sealing, or joined by ultrasonic waves. In the following description, an example in which both

sheets

5 and 6 are joined by the adhesive 7 will be described.

4 and 5 show an embodiment of the joining pattern of the first sheet 5 and the second sheet 6. As shown in FIGS. 2 and 4, the first adhesive 71 is arranged on the outer periphery of the heating element 3, and the first sheet 5 and the second sheet 6 are joined to each other so that the heating element 3 is interposed between the two sheets. It can be held. Further, in the outer end region 2S in the lateral direction X of the main body portion 2, the region where the second adhesive 72 and the third adhesive 73 are applied and the first sheet 5 and the second sheet 6 are joined by the adhesive 7. The non-bonding region 8 which is not formed is formed. That is, the non-bonding region 8 is a region where the adhesive 7 is not present in the outer end region 2S. In addition, in FIGS. 5B to 5D, the region to which the third adhesive 73 is applied may not be formed.

Both the application area of the second adhesive 72 and the non-bonding area 8 are located outside the application area of the first adhesive 71 in the lateral direction X, and the application area of the third adhesive 73 in the lateral direction X. It is located inside The application area of the second adhesive 72 and the non-bonding area 8 shown in FIG. 2 are formed in a plurality of strips so as to extend along the longitudinal direction Y of the main body 2. A third adhesive 73 is applied to the outer ends of the main body 2, and the outer ends of the first sheet 5 and the second sheet 6 are joined together. Note that FIGS. 4 and 5 show the formation state of the non-bonding regions 8 in the second sheet 6 excluding the first sheet 5 for convenience of description. In addition, the vertical direction Y is a direction orthogonal to the horizontal direction X, and the vertical direction Y of the heating tool 1 and the vertical direction Y of the main body unit 2 coincide with each other. In the following description, the vertical direction of each member will be described as a direction coinciding with the vertical direction Y of the heating tool 1.

Specifically, the bonding pattern shown in FIG. 4 is a strip-shaped pattern in which both the application area of the second adhesive 72 and the non-bonding area 8 extend in the vertical direction Y. In the bonding pattern shown in FIG. 4, the application areas of the second adhesive 72 and the non-bonding areas 8 are alternately arranged in the lateral direction X. In the joining pattern shown in FIG. 5A, only the application area of the third adhesive 73 exists, and the application area of the second adhesive 72 does not exist. Therefore, the non-bonding area 8 shown in the same figure is formed between the application area of the first adhesive 71 and the application area of the third adhesive 73, and is more lateral than the non-bonding area 8 shown in FIG. The length of X is long.

Further, the joining pattern shown in FIG. 5B is a strip-shaped pattern in which the application area of the second adhesive 72 and the non-joining area 8 are inclined so as to extend from the upper right to the lower left on the paper surface of the figure. .. That is, both the application area of the second adhesive 72 and the non-bonding area 8 extend so as to be inclined so that one end of each area is positioned inward of the other end in the lateral direction X of the heating tool 1, and It has a band-shaped joining pattern in which regions are alternately arranged. The bonding pattern shown in FIG. 5C is a band-shaped bonding in which the application area of the second adhesive 72 and the non-bonding area 8 extend in the horizontal direction X, and these areas are alternately arranged in the vertical direction Y. It is a pattern. In addition, the bonding pattern shown in FIG. 5D is a bonding pattern in which both the application area of the second adhesive 72 and the non-bonding area 8 are formed in a dotted pattern and the application area of the third adhesive 73 does not exist. ing. 5D, the application area of the third adhesive 73 may further exist.

The width W1 (see FIGS. 4 and 5) of the non-bonding region 8 is preferably 3 mm or more, more preferably 5 mm or more, from the viewpoint of flexibility and fit, and from the viewpoint of bonding strength. 25 mm or less, preferably 20 mm or less, and more preferably 18 mm or less. The width of the non-bonding area 8 is a length in a direction orthogonal to the extending direction of the non-bonding area 8. For example, in the bonding pattern shown in FIG. And the distance between the second adhesives 72 adjacent to each other, the distance between the second adhesives 72, and the distances from the lateral ends of the second adhesives 72 to the third adhesives 73. In the joining pattern shown in FIG. 5A, the distance is from the lateral end of the first adhesive 71 to the third adhesive 73. In the joining patterns shown in FIGS. 5B to 5D, the intervals between the second adhesives 72 are set. 4 and 5B to 5D, the width W1 of each non-bonding region 8 may be the same or different.

The non-bonding regions 8 shown in FIGS. 4 and 5 were formed with a uniform width, but instead of this, by bonding with a bonding pattern in which the coating width of the adhesive 7 is non-uniform, The non-bonding region 8 having a non-uniform width W1 may be formed. For example, when paying attention to one non-bonding region 8, the width W1 decreases continuously from one end to the other end of the non-bonding region 8 extending in one direction, in a stepwise manner, or in a combination thereof, or The width W1 is continuously increased in a stepwise manner or in a combination between the one end and the other end of the non-bonding region 8 that extends in one direction, and the width W1 becomes smaller and the part becomes larger. The existing shape and the like can be mentioned. Examples of the shape of the non-bonding region 8 in which the width W1 is non-uniform include, for example, a trapezoidal shape, a polygonal shape such as a hexagonal shape, an hourglass shape, a shape that is convexly curved outward in the lateral direction X of the main body 2, and Examples thereof include a shape curved inward in the lateral direction X of the main body portion 2 and a combination thereof. In any case, the average value of the width W1 may satisfy the above range.

The coating width W2 of the second adhesive 72 (see FIGS. 4 and 5) is preferably 1 mm or more, more preferably 2 mm or more, and 3 mm from the viewpoint of improving the bonding strength and workability. More preferably, it is preferably 10 mm or less, more preferably 8 mm or less, further preferably 7 mm or less, and more preferably 5 mm or less, from the viewpoint of improving flexibility and fitting property. More preferably, The application width of the second adhesive 72 is the length in the direction orthogonal to the extending direction of the application area of the second adhesive 72. Similarly, the coating width W3 (see FIGS. 4 and 5) of the third adhesive 73 is preferably 2 mm or more, more preferably 3 mm or more, from the viewpoint of improving the bonding strength and the workability. In addition, from the viewpoint of improving flexibility and fitting property, it is preferably 10 mm or less, and more preferably 8 mm or less. The application width of the third adhesive 73 is the length of the third adhesive 73 in the lateral direction X. 4 and 5B to 5D, the coating width W2 of each second adhesive may be the same or different.

Each of the

adhesives

72 and 73 may be applied in a shape other than the strip shape having the same width. For example, in one application area of the second adhesive 72 or the third adhesive 73, the application widths may be formed to have different shapes. For example, when focusing on one second adhesive 72, the coating width W2 becomes smaller continuously, stepwise, or a combination thereof from one end of the second adhesive 72 extending in one direction toward the other end. Or, the application width W2 becomes larger in a continuous shape, in a stepwise manner, or in a combination thereof between one end and the other end of the second adhesive 72 extending in one direction. The shape and the like in which both the part and the part exist may be mentioned. Specific examples of the application shape in which the application width W2 of the adhesive is non-uniform include a trapezoidal shape, a polygonal shape such as a hexagonal shape, an hourglass shape, and a shape that is convexly curved outward in the lateral direction X of the main body 2. , And a shape curved inwardly in the lateral direction X of the main body 2, a combination thereof, and the like. In any case, the average value of the coating width W2 should satisfy the above range.

Further, when paying attention to the third adhesive 73, the coating width W3 continuously decreases from one end to the other end of the third adhesive 73 extending in one direction, in a stepwise manner, or in a combination thereof, or Alternatively, a portion having a larger shape, or a portion where the coating width W3 is continuously, stepwise, or a combination thereof, between the one end and the other end of the third adhesive 73 extending in one direction, and a portion where the coating width W3 increases. And the like in which both of them exist. The application shape in which the application width W3 of the adhesive is non-uniform can be the same as that of the second adhesive 72 described above, for example. In any case, the average value of the coating width W3 should satisfy the above range.

The heating element 3 held between the first sheet 5 and the second sheet 6 contains an oxidizable metal, a reaction accelerator, an electrolyte and water. As the heating element 3, a heat generating sheet composed of a fiber sheet containing an oxidizable metal, a reaction accelerator, a fibrous substance, an electrolyte and water, an oxidizable metal, a reaction accelerator, a water retention agent, an electrolyte and water are used. Those provided with an exothermic composition containing can be used. The heat-generating sheet and the heat-generating composition may be used alone, or at least one of the heat-generating sheet and the heat-generating composition may be contained in a bag body formed by bonding a plurality of sheet materials. As the various materials constituting the heat generating sheet and the heat generating composition, for example, the materials described in JP-A-2003-102761 and JP-A-2013-146555 can be used.

The sectional view shown in FIG. 3 shows a fixed state of the heating element 3 formed by accommodating the heating sheet in the bag body. The heating element 3 shown in the same figure is fixed to the inner surface of the second sheet 6 of the heating tool 1 with the

adhesive fixing portions

7a, 7a formed by the adhesive 7, and the other surface is the second sheet. 6 is not fixed. The

adhesive fixing portions

7a, 7a are provided in the central region of the heating device 1 in the horizontal direction X and extend along the vertical direction Y of the heating device 1. By having such a configuration, the heating element 3 can be successfully placed in both eyes of the user and the vicinity thereof when the heating tool 1 is used.

Returning to FIG. 2, the ear hook portion 4 shown in the figure is made of a sheet material, and an insertion portion 4A extending in the lateral direction X is formed on the sheet material. The insertion portion 4A is a hole for passing the ear when the ear hook 4 is hooked on the ear. Instead of this, the insertion portion 4A may be formed by a through slit or the like that allows the ear to pass through. As shown in FIGS. 2 and 3, the ear hooking portion 4 is joined to the outer surface of the first sheet 5 in the main body portion 2 at both outer end regions in the lateral direction X, whereby the main body portion 2 and the ear portion 4 are joined together. A joining region 9 is formed where the hanging portion 4 is joined.

6A and 6B are a plan view and a cross-sectional view showing the form of the joining region 9. The joint region 9 between the main body 2 and the ear hook 4 shown in FIGS. 2 and 6A is from the joint end 9 s, which is the inner end in the lateral direction X of the joint region 9, to the lateral outer end of the main body 2. The joint ends 9s are chorded, and the outer edge of the main body 2 has a semi-elliptical shape with an arc. As shown in FIG. 6B, the joining region 9 is formed by joining the first sheet 5 and the ear hook 4 to each other. The joining region 9 also functions as a bent portion when the ear hooking portion 4 is inverted with the joining end portion 9s as an axis.

Further, as shown in FIGS. 6A and 6B, in the heating tool 1, the bonding area 9 where the main body 2 and the ear hook 4 are bonded, and the first sheet 5 and the second sheet 6 are adhesive. The non-bonded region 8 not bonded by 7 is formed so as to overlap each other in the thickness direction Z.

The arrangement form of the non-bonding regions 8 and the bonding regions 9 will be described in detail. When a plurality of non-bonding regions 8 are formed in a strip shape along the vertical direction Y as shown in FIG. Since the joint end portion 9s of 9 extends so as to intersect the vertical direction Y, the following arrangement forms (i) to (iii) exist.

That is, (i) above the Y direction in FIG. 6A, one non-bonding region 8 and the bonding region 9 located on the outermost side in the lateral direction X partially overlap in the thickness direction Z, The other non-bonding regions 8 located inward of the non-bonding region X in the lateral direction X and the bonding region 9 do not overlap at all. (Ii) At the position of the line AA in FIG. 6A, as shown in FIG. 6B, the non-bonding region 8 and the bonding region 9 located on the outermost side in the lateral direction X are in the thickness direction Z. There is a region in which the non-bonding regions 8 and the bonding region 9 partially overlap in the thickness direction Z and a region in which they do not overlap at all. (Iii) In the lower part in the Y direction in FIG. 6A, all the non-bonding regions 8 and the bonding regions 9 are wholly or partially overlapped with each other in the thickness direction Z. By having such a configuration, it is possible to increase the flexibility of the portion having the joint region 9 in the heating tool 1 to improve the fitting property, and at the same time, the joint strength between the main body portion 2 and the ear hook portion 4. The advantage of being able to express is exhibited.

In the form shown in FIG. 6A, all the arrangement forms of (i) to (iii) are present, but the present invention is not limited to this, and one of the above (i) to (iii) is There may be an existing configuration, or an arbitrary combination of these configurations. For example, by matching the extending direction of the non-bonding region 8 in the bonding pattern shown in FIG. 4 with the extending direction of the bonding end 9s in the bonding region 9, one of the above (i) to (iii) exists. The non-bonding area 8 and the bonding area 9 may be arranged. That is, in any of the disposition forms, the non-bonding region 8 and the bonding region 9 partially overlap in the thickness direction of the heating device and the region where the non-bonding region 8 entirely overlaps in the thickness direction of the heating device. At least one of the areas exists.

The sheet materials that can be used for the heating element 3, the ear hook 4, the first sheet 5, and the second sheet 6 are the breathability, moisture permeability, texture, stretchability, strength, and composition of the heating sheet and the heating composition. It may be appropriately determined in consideration of properties such as leakage prevention of the material, and for example, non-woven fabric, woven fabric, paper, resin film, or a combination thereof is used.

Specifically, as the non-woven fabric used for the sheet material, for example, polyester such as polyethylene terephthalate, spun bond non-woven fabric containing synthetic fibers such as polyethylene and polypropylene, thermal bond non-woven fabric, air through non-woven fabric, spun lace non-woven fabric, needle punched non-woven fabric, melt blown Examples include non-woven fabric. As the above-mentioned non-woven fabric, a non-woven fabric which has been subjected to secondary processing such as heat treatment or surface treatment with silicone, a surfactant or the like can be used. As the resin film used for the sheet material, a moisture permeable film containing synthetic fibers such as polyester such as polyethylene terephthalate, polyethylene, polypropylene, elastomer, nylon, polyurethane, or a stretchable film can be used. Further, it is also possible to use a material in which desired properties are expressed by combining these sheet materials.

When the air-permeable sheet material is used, the air permeability of the first sheet 5 is preferably lower than that of the second sheet 6. Specifically, the air permeability of the first sheet 5 is preferably 0.01 seconds/100 mL or more, more preferably 0.1 seconds/100 mL or more, and 10 seconds/100 mL or more. More preferably, it is more preferably 50 seconds/100 mL or more, further preferably 15,000 seconds/100 mL or less, and more preferably 10,000 seconds/100 mL or less. Further, the air permeability of the second sheet 6 is preferably 100 seconds/100 mL or more, more preferably 4000 seconds/100 mL or more, and preferably 60,000 seconds/100 mL or less, 40,000 seconds/ It is more preferably 100 mL or less. The air permeability is measured by the method described in JIS P8117. A high air permeability means that it takes a long time for air to pass therethrough, which means that the air permeability is low. Comparing the first sheet 5 and the second sheet 6 with respect to air permeability, the air permeability of the first sheet 5 is higher than that of the second sheet 6. Further, when the heating element 3 is configured as a bag body in which a plurality of sheet materials are combined, the sheet material arranged on the first sheet 5 side of the heating element 3 is arranged on the second sheet 6 side of the heating element 3. It is also preferable that it is lower than the air permeability of the sheet material.

When a moisture-permeable sheet material is used as the sheet material, the moisture permeability of the first sheet 5 is preferably 1000 g/(m ² ·24 h) or more, more preferably 2000 g/(m ² ·24 h) or more, It is more preferably 3000 g/(m ² ·24 h) or more. The water vapor transmission rate of the second sheet 6 may be the same as the water vapor transmission rate of the first sheet 5, or may be higher or lower than the water vapor transmission rate of the first sheet 5. With such a configuration, the user can easily perceive the heat. The water vapor permeability is measured according to the method of JIS Z0208 by changing the measurement time to 1 hour.

From the viewpoint of enhancing the fit of the heating tool to the eyes, at least one of the first sheet 5 and the second sheet 6 is preferably made of a stretchable sheet material. Along with this, it is more preferable to form a joint pattern of both

sheets

5 and 6 in a direction intersecting with the stretching direction of both

sheets

5 and 6, and the joint pattern is a direction orthogonal to the stretching direction of both

sheets

5 and 6. It is more preferable to form it. Generally, since the heating device 1 is used by being stretched in the lateral direction X (that is, the longitudinal direction) at the time of wearing and using the heating device 1, the stretching direction of both

sheets

5 and 6 and the lateral direction X of the heating device 1 are set. Are preferably the same. Stretchability refers to one or both of elongation and elongation recovery (contractibility), provided that at least one of the first sheet 5 and the second sheet 6 has extensibility in one direction. Alternatively, one of the first sheet 5 and the second sheet 6 may have stretchability, and the other may have stretchability and stretch recovery.

From the same viewpoint, it is preferable that the sheet material forming the ear hook 4 is a sheet having stretchability. The extensibility of the sheet material forming the ear hook 4 is preferably 10 N or less when a sample of 5 cm×10 cm is elongated 1.5 times in the longitudinal direction at a speed of 500 mm/min. It is more preferably 5 N or less.

According to the heating tool of the present invention having the above configuration, since the first sheet 5 and the second sheet 6 have the non-bonding region 8 that is not bonded by the adhesive 7, the first sheet 5 and the second sheet Compared with the case where the bonding with the sheet 6 is continuously performed with the adhesive 7, the rigidity of the outer end region in the lateral direction X is low, and the flexibility of the heating tool 1 is high. As a result, it is easy to follow the user's face and movements, and good fit can be exhibited. Particularly, in the heating tool of the present invention, the main body portion 2 and the ear hooking portion 4 are joined to each other to form the joining region 9, and the joining region 9 and the non-joining region 8 overlap each other in the thickness direction of the heating device. That is one of the features. By providing such a configuration, it is possible to enhance the elasticity of the entire heating tool while maintaining the joint strength between the main body 2 and the ear hook 4. Furthermore, the improved stretchability makes it possible to enhance the fit of the heating tool to the eyes, the flexibility of the heating tool is excellent, and the heating tool can be more softly contacted with the wearer's skin.

From the viewpoint of further enhancing the fit of the heating tool to the eyes, it is preferable that the non-bonding region 8 is formed by bonding the first sheet 5 and the second sheet 6 in a stripe-shaped bonding pattern. .. As the stripe-shaped joining pattern, for example, as shown in FIGS. 4 and 5(a), a strip-shaped joining pattern extending in the vertical direction Y, or as shown in FIG. A band-shaped bonding pattern that is inclined so as to extend from the upper right to the lower right can be used, or as shown in FIG. 5C, a band-shaped bonding pattern that extends along the lateral direction X can be used. From the same point of view, as shown in FIG. 5D, the first sheet 5 and the second sheet 6 are joined in a spatter-like joining pattern to form the non-joining region 8. Is also a preferred pattern.

From the viewpoint of successfully combining the ease of wearing the heating tool and the fitting property of the heating tool to the eyes, the bonding pattern of both

sheets

5 and 6 may adopt the bonding pattern shown in FIG. 5(b). It is more preferable to use the bonding pattern shown in FIG. 4, and it is more preferable to use the bonding pattern shown in FIG. In particular, when at least one of the first sheet 5 and the second sheet 6 is made of a stretchable sheet material, the above-described effects are more effectively exhibited.

The fit of the heating tool to the eyes and the flexibility of the heating tool are further enhanced, and the joint strength between the main body 2 and the ear hook 4 is increased to prevent the ear hook 4 from unintentionally dropping from the main body 2. From the viewpoint of preventing breakage, it is preferable that the main body portion 2 and the ear hook portion 4 are joined by an adhesive, joined by fusion, or ultrasonically joined. When the main body portion 2 and the ear hook portion 4 are joined by fusion, for example, heat sealing or the like can be used as a joining method, and the raw materials or fibers forming the main body portion 2 and the ear hook portion 4 are fused together. To join. As a mode of bonding, the bonding region 9 can be formed continuously or intermittently. The form of forming the joining region 9 intermittently may include the joining region 9 and a region that is not joined by fusion. As a specific form, for example, a form similar to the form described in the non-bonding region 8 described above can be adopted. When the main body portion 2 and the ear hooking portion 4 are joined with an adhesive, a joining mode similar to joining by fusion can be adopted.

Also, it is possible to ultrasonically bond the main body 2 and the ear hook 4 together. In particular, when ultrasonically bonding the main body 2 and the ear hook 4 to each other, the bonding area 9 formed by ultrasonic bonding and the non-bonding of the first sheet 5 and the second sheet 6 in the plan view of the heating tool 1. The region 8 is preferably formed so that the overlapping portions of these regions are large. That is, it is preferable that the bonding area 9 and the application area of the adhesive 7 are formed so as to have a small overlapping portion.

From the viewpoint of further improving the fitting property of the heating tool to the eyes and the flexibility of the heating tool, and improving the joint strength between the main body 2 and the ear hook 4 and the manufacturing efficiency, the main body 2 It is preferable that the first sheet 5 and the ear hooking portion 4 are joined together in the linear joining region 9A extending in one direction. The linear joining region 9A shown in FIG. 7A continuously extends along a direction intersecting both the horizontal direction X and the vertical direction Y of the heating tool 1. In the present invention, it is not essential that the linear bonding region 9A continuously extends, and for example, the linear bonding region 9A extending in one direction is intermittently formed in the shape of a discontinuous line such as a broken line. May be. Further, as shown in FIG. 7A, the region from the outer side in the lateral direction X of the linear joining region 9A to the outer end portion in the lateral direction X of the main body 2 includes the first sheet 5 and the ear hooking part. It is a region where 4 and 4 are not joined. Instead of this, in the present invention, the region from the outer side in the lateral direction X of the linear joining region 9A to the outer end portion in the lateral direction X of the main body portion 2 includes the first sheet 5 and the ear hook portion 4. May have a region where they are partially joined.

Specifically, as shown in FIG. 7A, the main body portion 2 and the ear hook portion 4 are provided with a linear joining region 9A that is inclined in a direction extending from the upper right side to the lower left side in the lateral direction X on the paper surface of the figure. can do. That is, in a plan view, one end of the linear bonding region 9A can form the linear bonding region 9A located inward of the other end in the lateral direction X. Instead of this, it is possible to form the linear bonding region 9A extending along the vertical direction Y or the horizontal direction X of the heating tool 1. As another form of the linear joining region 9A, for example, the linear joining region 9A is inclined in a direction extending from the upper left to the lower right of the lateral direction X on the paper surface, or a plurality of the linear joining regions 9A are arranged in parallel. Examples include a striped form.

In any of the above-described forms, as shown in FIGS. 7A and 7B, the linear bonding region 9A and the non-bonding region 8 have overlapping portions in the thickness direction. It is preferable to form so as to increase the number, and it is more preferable to form so that the bonding region 9 and the region bonded by the adhesive 7 do not overlap. As such an example, a joining pattern as shown in FIG. 4 or FIG. 5(a) or (b) is adopted to join the first sheet and the second sheet to form the non-joining region 8, and then, The linear joining region 9A extending in one direction can be formed so as to fit in the non-joining region 8.

The width W4 (see FIG. 7A) of the linear bonding region 9A is preferably 2 mm or more, more preferably 3 mm or more, and more preferably 4 mm or more from the viewpoint of improving bonding strength and workability. More preferably, it is more preferably 5 mm or more, and from the viewpoint of improving flexibility and fitability, it is preferably 20 mm or less, more preferably 15 mm or less, and 12 mm or less. More preferably, it is more preferably 10 mm or less. The width of the linear bonding region 9A is the length in the direction orthogonal to the extending direction of the linear bonding region 9A.

When non-woven fabric is used as the first sheet 5 and the second sheet 6, the basis weight of the second sheet 6 is preferably larger than the basis weight of the first sheet 5. The basis weight of the first sheet 5 is preferably 10 g/m ² or more, more preferably 20 g/m ² or more, and preferably 200 g/m ² or less and 130 g/m ² or less. Is more preferable. The basis weight of the second sheet 6 is preferably 10 g/m ² or more, more preferably 30 g/m ² or more, preferably 200 g/m ² or less, and 150 g/m ² or less. Is more preferable.

The form of the ear hook 4 in the heating tool 1 is not limited to the sheet-like member shown in FIGS. 1 and 2 as long as the main body 2 can be fixed to both eyes of the user. For example, as shown in FIG. 8, the ear hook 4 made of a string-shaped member may be adopted, or the ear hook 4 made of a thread-shaped or band-shaped member may be adopted. From the viewpoint of enhancing the fit of the warming tool, it is preferable to use an elastic body such as rubber as the constituent member of the ear hook to make the ear hook 4 expandable and contractible.

The form of the heating element 3 in the above-described heating tool 1 has been described as a configuration in which the two heating elements 3 are held separately. However, as long as warm feeling can be imparted to both eyes of the user and their surroundings, heating is possible. The form of the ingredient is not particularly limited. For example, one heating element having a shape and size capable of covering both eyes of the user and the surroundings thereof may be held between the first sheet 5 and the second sheet 6, and three or more heat generating elements may be generated. The body may be held between the first sheet 5 and the second sheet 6.

Also, the heating element 3 shown in FIGS. 2 and 3 is only partially fixed in the central region of the heating tool 1, but is not limited to this form. For example, the heating element 3 and the second sheet 6 may be joined continuously or intermittently in the central region and the region other than the central region, and the entire surface of the second sheet 6 where the heating element 3 is arranged. It may be bonded by applying an adhesive to the.

Next, a suitable method for manufacturing the above-described heating device 1 will be described. This manufacturing method includes a step of applying an adhesive to one surface of the second sheet 6 so as to have a non-application portion (application step), and the heating element 3 is held between the

sheets

5 and 6. And a step of joining both

sheets

5 and 6 to form the non-joining area 8 (non-joining area forming step), and a step of joining the main body 2 and the ear hook 4 (joining step). It is roughly divided into processes. The manufacturing method described below will be described by taking an arrangement mode of the adhesive 7 in the heating tool 1 shown in FIGS. 2 and 4 as an example.

First, the adhesive 7 is applied to one surface of the second sheet 6 so as to have a non-application portion (application process). The non-application portion formed through this step is the planned formation position of the non-bonding region 8 in the outer end region 2S of the heating tool 1. Specifically, while the second sheet 6 is being conveyed in the direction along the longitudinal direction Y of the second sheet 6, the second sheet 6 is formed in a stripe shape extending in the conveying direction at both end sides of the second sheet 6 in the lateral direction X. The adhesive agent 7 is intermittently applied to. The application portion of the adhesive 7 formed by this is the planned location of the second adhesive 72 and the third adhesive 73 in the heating tool 1. Through the above steps, the non-application portion of the adhesive 7 is formed at both end sides in the lateral direction X of the second sheet 6 as the planned formation positions of the non-bonding regions 8.

From the viewpoint of improving the retention of the heating element 3, the adhesive 7 is applied to the entire outer peripheral edge of the surface of the second sheet 6 that is to face the heating element 3 simultaneously with the above step or before or after the above step. At the same time, it is also preferable that the second sheet 6 is coated on a part or the entire surface of the second sheet 6 that is to face the heating element 3. The application portion of the adhesive 7 formed by this is the position where the first adhesive 71 is expected to exist in the heating tool 1. At the same time, on both end sides of the second sheet 6 in the lateral direction X, the first adhesive 71 and the second adhesive 72 or the third adhesive 73 are bonded to each other as a planned formation position of the non-bonding region 8. A non-application portion of the agent 7 is formed. When the adhesive 7 is applied to a part of the surface of the second sheet 6 facing the heating element 3, the part of the adhesive 7 where the adhesive fixing portion 7a is to be present is to be applied to the facing surface. And a second non-application portion of the adhesive 7 surrounded by the first adhesive 71 is formed.

Next, the

sheets

5 and 6 are joined together so that the heating element 3 is held between the

sheets

5 and 6 to form the main body portion 2 in which the non-joined area 8 is formed (non-joined area forming step). ). Specifically, the heating element 3 manufactured in a separate step is laminated on the surface of the second sheet 6 coated with the adhesive 7. After that, the first sheet 5 is further laminated on the heating element 3, and the both

sheets

5 and 6 are joined via the adhesive 7. Through this step, the main body portion 2 joined between the

sheets

5 and 6 while the heating element 3 is held is formed. The main body portion 2 has a non-bonding region 8 formed of a non-application portion of the adhesive 7 in the outer end region 2S. In joining the two

sheets

5 and 6, for example, a laminated body including the first sheet 5, the heating element 3 and the second sheet 6 is introduced between a pair of press rolls and the pressure is applied between them. The bondability between the two

sheets

5 and 6 may be enhanced.

Finally, the main body 2 and the ear hook 4 are joined (joining process). In detail, the ear hook 4 made of a sheet material in which the insertion portion 4A is formed in advance is laminated on the first sheet 5 side of the main body 2. After that, at a position where it overlaps with the non-bonding region 8 in the main body 2 in the thickness direction Z, the main body 2 and the ear hooking part 4 are bonded by a bonding method such as adhesion, fusion, or ultrasonic wave, and the bonding area 9 or The linear bonding region 9A is formed. When the body portion 2 and the ear hooking portion 4 are joined by an adhesive, the surface of the ear hooking portion 4 that faces the body portion 2 and/or the surface of the body portion 2 that faces the ear hooking portion 4 Adhesive 7 is applied to the side of the first sheet 5 on which the adhesive sheet 7 is formed, at a position where it will overlap the non-bonding region 8 in the main body 2 in the thickness direction Z, and then the ear hook 4 is laminated on the main body 2 and bonded. do it.

The coating step in the above-described manufacturing method has been described as a mode in which the adhesive is coated on one surface of the second sheet 6 so as to have a non-coated portion, but instead of this, one surface of the first sheet 5 is used. Alternatively, the adhesive 7 may be applied so as to have a non-applied portion. In this case, while conveying the first sheet 5 in the direction along the longitudinal direction Y of the first sheet 5, both ends of the first sheet 5 in the lateral direction X are formed in stripes extending in the conveying direction and in the lateral direction X. The adhesive 7 is applied intermittently. The application portion of the adhesive 7 formed by this is the planned location of the second adhesive 72 and/or the third adhesive 73 in the heating tool 1, as in the method described above. Through the above steps, the non-coated portions of the adhesive 7 are formed on both end sides of the first sheet 5 in the lateral direction X as the planned formation positions of the non-bonding regions 8.

At the same time as, or before or after the formation of the non-application portion on the first sheet 5, the adhesive 7 is applied to the entire outer peripheral edge of the surface of the first sheet 5 facing the heating element 3. The application portion of the adhesive 7 formed by this is the position where the first adhesive 71 is expected to exist in the heating tool 1. At the same time, on both end sides of the first sheet 5 in the lateral direction X, between the first adhesive 71 and the second adhesive 72 and/or the third adhesive 73, the non-bonding region 8 is formed at a predetermined position. The non-applied portion of the adhesive 7 is formed. From the viewpoint of enhancing the holding property of the heating element 3, it is also preferable to apply the adhesive 7 to a part or the entire surface of the first sheet 5 that is to face the heating element 3.

The heating device 1 shown in FIGS. 2 and 4 is manufactured through the above steps. When the heating device 1 having the joining mode shown in FIGS. 5A to 5D is manufactured by joining via the adhesive 7, for example, the heating mode 1 corresponds to the joining modes shown in FIGS. 5A to 5D. Using a roll having a concave-convex shape on the peripheral surface, in a state where the adhesive 7 is arranged on the convex portion surface of the roll, the roll is brought into contact with the first sheet 5 and/or the second sheet 6, The adhesive 7 is transferred to the first sheet 5 and/or the second sheet 6 side to form the applied portion and the non-applied portion of the adhesive 7 in the arrangement mode as shown in FIGS. 5A to 5D. Good. Then, the two

sheets

5 and 6 are joined so that the heating element 3 is held between the two

sheets

5 and 6 to form the main body portion 2 in which the non-joined region 8 is formed. After that, the main body 2 and the ear hook 4 may be joined by the method described above.

Further, when the heating tool 1 having the joining mode shown in FIGS. 4 and 5A to 5D is manufactured by fusion bonding or ultrasonic bonding, heat is generated between the first sheet 5 and the second sheet 6. After arranging the body 3, heat embossing or ultrasonic waves are applied to a portion where the first sheet 5 and the second sheet 6 are overlapped with each other so as to obtain a desired joining mode shown in FIGS. The main body 2 is formed by performing a joining process such as embossing. After that, the main body 2 and the ear hook 4 may be joined by the method described above.

Although the present invention has been described above based on its preferred embodiments, the present invention is not limited to the above embodiments.

Regarding the above-described embodiment of the present invention, the following heating tool is further disclosed.
<1>
A main body having a shape that covers both eyes of the user during use, a heating element provided in the main body, and a body attached to the main body and capable of maintaining the covering state of both eyes of the user by the main body A heating device including a pair of ear hooks,
The main body portion includes a first sheet located on the side closer to the user's skin, and a second sheet located on the side farther from the user's skin,
The first sheet and the second sheet are joined so that the heating element is held between the two sheets and a non-joining region is formed between the two sheets.
A heating tool in which the main body part and the ear hooking part are bonded to each other to form a bonding area, and the bonding area and the non-bonding area overlap each other in the thickness direction of the heating tool.

<2>
The heating device according to <1>, wherein the first sheet and the second sheet are joined by an adhesive, joined by fusion, or ultrasonically joined.
<3>
The heating device according to <1> or <2>, in which the non-bonding region is formed by bonding the first sheet and the second sheet in a stripe-shaped bonding pattern.
<4>
The heating device according to <3>, wherein the non-bonding region is formed so as to extend so that one end of the non-bonding region is inclined so that it is located inward of the other end of the heating device rather than the other end. ..
<5>
The heating device according to <3>, wherein the non-bonding region is formed to extend along a lateral direction of the heating device.
<6>
The heating device according to <3>, wherein the non-bonding region is formed so as to extend along a direction orthogonal to a lateral direction of the heating device.

<7>
The width of the non-bonding region is reduced continuously or stepwise from one end of the non-bonding region extending in one direction to the other end thereof, according to any one of the above items <3> to <6>. Heating equipment.
<8>
Between one end and the other end of the non-bonding region extending in one direction, there are both a part where the width of the non-bonding region is continuous, stepwise or a combination thereof, and a part where the width becomes large. The heating tool according to any one of <3> to <6>.
<9>
The heating tool according to <1> or <2>, in which the non-bonding region is formed by bonding the first sheet and the second sheet in a dot-shaped bonding pattern.
<10>
The width of the non-bonding region is preferably 3 mm or more, more preferably 5 mm or more, preferably 25 mm or less, more preferably 20 mm or less, and 18 mm or less. More preferably, the heating device according to any one of <1> to <8>.
<11>
The heating element according to any one of <1> to <10>, wherein the heating element contains an oxidizable metal, a reaction accelerator, an electrolyte, and water.

<12>
An adhesive fixing part is provided in the lateral center area of the heating device,
The heating element according to any one of <1> to <11>, in which the heating element and the second sheet are fixed by the adhesive fixing portion.
<13>
The joint region has a joint end at a laterally inner end of the joint region,
The heating device according to any one of <1> to <12>, which is continuously joined from the joining end portion to the lateral outer end portion of the main body portion.
<14>
The non-bonding region and the bonding region have at least one of a region where they are entirely overlapped in the thickness direction of the heating device and a region where they are partially overlapped in the thickness direction of the heating device. 1> thru|or the heating tool as described in any one of <13>.
<15>
Both the first sheet and the second sheet are breathable sheet materials,
The heating element according to any one of <1> to <14>, wherein the first sheet has a lower air permeability than the second sheet.
<16>
The air permeability of the first sheet is preferably 0.01 seconds/100 mL or more, more preferably 0.1 seconds/100 mL or more, further preferably 10 seconds/100 mL or more, 50 seconds/ The heating device according to <15>, further preferably 100 mL or more, more preferably 15000 seconds/100 mL or less, and further preferably 10,000 seconds/100 mL or less.

<17>
The air permeability of the second sheet is preferably 100 seconds/100 mL or more, more preferably 4000 seconds/100 mL or more, and preferably 60,000 seconds/100 mL or less, and 40,000 seconds/100 mL or less. More preferably, the heating device according to <15> or <16>.
<18>
The first sheet is a breathable sheet material,
The moisture permeability of the first sheet is preferably 1000 g/(m ² ·24 h) or more, more preferably 2000 g/(m ² ·24 h) or more, and more preferably 3000 g/(m ² ·24 h) or more. Is more preferable, The heating tool according to any one of <1> to <17>.
<19>
At least one of the first sheet and the second sheet is a sheet material having elasticity,
The heating device according to any one of <1> to <18>, in which a joining pattern of the first sheet and the second sheet is formed in a direction intersecting with a stretching direction of the sheet material.
<20>
The main body portion and the ear hooking portion are joined by an adhesive, joined by fusion, or ultrasonically joined, according to any one of <1> to <19>. Heating equipment.
<21>
The heating tool according to any one of <1> to <20>, in which the joint region is formed continuously or intermittently.

<22>
The heating device according to any one of <1> to <21>, wherein the joining region and the non-joining region are preferably formed so that the overlapping portions of these regions are increased.
<23>
The ear hook portion is made of a sheet material, and the sheet material has an insertion portion for inserting an ear,
The heating device according to any one of <1> to <22>, in which the main body portion and the ear hooking portion are joined in a linear joining region extending in one direction.
<24>
The ear hook is made of a stretchable sheet material,
As for the extensibility of the sheet material, the tension when the sheet material of 5 cm×10 cm is elongated 1.5 times in the longitudinal direction at a speed of 500 mm/min is preferably 10 N or less, and 5 N or less. More preferably, the heating device according to <23>.
<25>
The heating device according to <23> or <24>, wherein the linear bonding region extends in a direction intersecting a lateral direction of the heating device.
<26>
The region from the lateral outside of the linear joining region to the lateral outer end of the main body portion has a region where the first sheet and the ear hooking portion are not joined, <23> to <25. > The heating device according to any one of>.

<27>
One of the <23> to <26>, wherein the linear joining region is formed so as to be inclined so that one end of the region is located inward of the other end in the lateral direction of the heating tool. Heater described in.
<28>
The non-bonding region and the linear bonding region are preferably formed such that the overlapping portions of these regions increase in the thickness direction, according to any one of <23> to <27>. Heating equipment.
<29>
The width of the linear bonding region is preferably 2 mm or more, more preferably 3 mm or more, further preferably 4 mm or more, further preferably 5 mm or more, and 20 mm or less. The heating device according to any one of <23> to <28>, which is preferably 15 mm or less, more preferably 12 mm or less, further preferably 10 mm or less.
<30>
The warming tool according to any one of <1> to <22>, wherein the ear hooking portion is a string-shaped member.
<31>
The heating tool according to <30>, wherein the ear hooking portion is made of an elastic body.

<32>
The heating device according to any one of <1> to <31>, in which the first sheet and the second sheet are both non-woven fabrics, and the basis weight of the second sheet is larger than the basis weight of the first sheet.
<33>
The basis weight of the first sheet is preferably 10 g/m ² or more, more preferably 20 g/m ² or more, preferably 200 g/m ² or less, and 130 g/m ² or less. Is more preferable, The heating tool according to <32>.
<34>
The basis weight of the second sheet 6 is preferably 10 g/m ² or more, more preferably 30 g/m ² or more, preferably 200 g/m ² or less, and 150 g/m ² or less. More preferably, the heating device according to <32> or <33>.
<35>
A main body having a shape that covers both eyes of the user during use, a heating element provided in the main body, and a body attached to the main body and capable of maintaining the covering state of both eyes of the user by the main body A method of manufacturing a heating device, comprising: a pair of ear hooks, wherein the main body includes a first sheet located on a side closer to the user's skin and a second sheet located on a side farther from the user's skin. And
An adhesive is applied to one surface of the second sheet so as to have a non-application portion, and then,
The first sheet and the second sheet are joined together so that the adhesive application surfaces of the first sheet and the second sheet face each other and the heating element is held between the first sheet and the second sheet. , A non-bonded area is formed between both sheets, and after that,
A step of joining the main body and the ear hook,
A method of manufacturing a heating device, wherein the main body part and the ear hooking part are joined so that a joining region of the main body part and the ear hanging part and the non-joining region overlap each other in the thickness direction of the heating device. ..
<36>
A main body having a shape that covers both eyes of the user during use, a heating element provided in the main body, and a body attached to the main body and capable of maintaining the covering state of both eyes of the user by the main body A method of manufacturing a heating device, comprising: a pair of ear hooks; and the main body includes a first sheet located on the side closer to the user's skin and a second sheet located on the side farther from the user's skin. And
An adhesive is applied to one surface of the first sheet so as to have a non-application portion, and then,
The first sheet and the second sheet are joined so that the adhesive application surface of the first sheet and the second sheet face each other and the heating element is held between the first sheet and the second sheet. , A non-bonded area is formed between both sheets, and after that,
A step of joining the main body portion and the ear hook portion,
A method of manufacturing a heating device, wherein the main body part and the ear hooking part are joined such that a joining region between the main body part and the ear hanging part and the non-joining region overlap each other in the thickness direction of the heating device. ..
<37>
A main body having a shape that covers both eyes of the user during use, a heating element provided in the main body, and a body attached to the main body and capable of maintaining the covering state of both eyes of the user by the main body A method of manufacturing a heating device, comprising: a pair of ear hooks, the main body including a first sheet located closer to a user's skin and a second sheet located farther from the user's skin. And
An adhesive is applied to each of the one surface of the first sheet and the one surface of the second sheet so as to have a non-application portion, and then,
The first sheet and the second sheet such that the adhesive application surface of the first sheet and the adhesive application surface of the second sheet face each other and the heating element is held between the first sheet and the second sheet. While joining and, forming a non-joined area between both sheets, after that,
A step of joining the main body portion and the ear hook portion,
A method of manufacturing a heating device, wherein the main body part and the ear hooking part are joined such that a joining region between the main body part and the ear hanging part and the non-joining region overlap each other in the thickness direction of the heating device. ..

ADVANTAGE OF THE INVENTION According to this invention, the warming tool which the fitting property with respect to a wearer's body and flexibility improved is provided, maintaining the joint strength of the main-body part and warming part of a heating tool.

Claims

A main body having a shape that covers both eyes of the user during use, a heating element provided in the main body, and a body attached to the main body and capable of maintaining the covering state of both eyes of the user by the main body A heating device including a pair of ear hooks,
The main body portion includes a first sheet located on the side closer to the user's skin, and a second sheet located on the side farther from the user's skin,
The first sheet and the second sheet are joined so that the heating element is held between the two sheets and a non-joining region is formed between the two sheets.
A heating tool in which the main body part and the ear hooking part are bonded to each other to form a bonding area, and the bonding area and the non-bonding area overlap each other in the thickness direction of the heating tool.
The heating device according to claim 1, wherein the first sheet and the second sheet are joined by an adhesive, joined by fusion, or ultrasonically joined.
The heating tool according to claim 1 or 2, wherein the non-bonding region is formed by bonding the first sheet and the second sheet in a stripe-shaped bonding pattern.
The heating tool according to claim 1 or 2, wherein the non-bonded region is formed by bonding the first sheet and the second sheet in a spattered bonding pattern.
The heating device according to any one of claims 1 to 4, wherein the main body portion and the ear hook portion are joined by an adhesive, joined by fusion, or ultrasonically joined.
The ear hook portion is made of a sheet material, and the sheet material has an insertion portion for inserting an ear,
The heating device according to any one of claims 1 to 5, wherein the main body portion and the ear hooking portion are joined in a linear joining region extending in one direction.
A main body having a shape that covers both eyes of the user during use, a heating element provided in the main body, and a body attached to the main body and capable of maintaining the covering state of both eyes of the user by the main body A method of manufacturing a heating device, comprising: a pair of ear hooks; and the main body includes a first sheet located on the side closer to the user's skin and a second sheet located on the side farther from the user's skin. And
An adhesive is applied to one surface of the second sheet so as to have a non-application portion, and then,
The first sheet and the second sheet are joined together so that the adhesive application surfaces of the first sheet and the second sheet face each other and the heating element is held between the first sheet and the second sheet. , A non-bonded area is formed between both sheets, and after that,
A step of joining the main body and the ear hook,
A method of manufacturing a heating device, wherein the main body part and the ear hooking part are joined so that a joining region of the main body part and the ear hanging part and the non-joining region overlap each other in the thickness direction of the heating device. ..