KR102259999B1 - hot air balloon - Google Patents

Abstract

The heating device includes a sheet 10 having a convex projection 12 on one side 10a side, and a heat generating material 30 disposed on the other side 10b side of the sheet 10, the sheet (10) is comprised including the nonwoven fabric sheet 15, and the nonwoven fabric sheet 15 has at least two endothermic peaks accompanying a phase transition, respectively, Among these, the 1st endothermic peak is 60 degreeC or more and 180 degrees C or less. , and the second endothermic peak is on the higher temperature side than the first endothermic peak.

Description

hot air balloon

The present invention relates to a heating implement.

Patent Document 1 describes a sheet-shaped heating implement. This heating implement is a sheet-shaped thing molded by sheet-forming, is comprised so that the whole surface may generate heat, and has a some protrusion part convex on the single side|surface side.

Japanese Laid-Open Patent Publication No. 2005-111180

The present invention provides a sheet having a convex projection on one surface side thereof;

a heat generating material disposed on the other side of the sheet

to provide

The sheet is configured to include a non-woven fabric sheet,

The nonwoven fabric sheet has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak is within a temperature range of 60°C or higher and 180°C or lower, and the second endothermic peak is higher than the first endothermic peak. It relates to the heating element present on the side.

1 is a perspective view of a heating implement according to a first embodiment;
Fig. 2 is a plan view of the heating implement according to the first embodiment.
Fig. 3 is a cross-sectional view (cross-sectional view taken along line AA in Fig. 2) of the heating implement according to the first embodiment.
Fig. 4 is an enlarged cross-sectional view of the heating implement according to the first embodiment.
5(a) and 5(b) are cross-sectional views showing a series of steps of forming protrusions on the sheet constituting the heating implement according to the first embodiment.
Fig. 6 is a schematic diagram showing a state in which the heating implement according to the first embodiment is attached to a living body.
7(a), 7(b), 7(c), 7(d), 7(e), 7(f), 7(g), 7(h), 7 (i), FIG. 7(j), and FIG. 7(k) are diagrams for explaining a modified example of the arrangement or shape of the protrusion of the heating implement according to the first embodiment.
Fig. 8 is an enlarged cross-sectional view of the heating implement according to the second embodiment.
9(a) and 9(b) are cross-sectional views showing a series of steps of forming protrusions on a sheet constituting a heating implement according to the second embodiment.
Fig. 10 is a cross-sectional view of a heating implement according to a third embodiment.
Fig. 11(a) is a perspective view showing the main body of the heating implement according to the fourth embodiment, and Fig. 11(b) is a perspective view showing the fitting part of the heating implement according to the fourth embodiment.
12(a) and 12(b) are views showing the use state of the heating implement according to the fourth embodiment, of which Fig. 12(a) is a perspective view, and Fig. 12(b) is a view showing the use of the heating implement according to the fourth embodiment.壓) is a diagram showing the aspect, and only the palm is shown as a cross section.
13(a), 13(b), and 13(c) are views for explaining Examples 1 and 2, of which FIG. 13(a) is provided for measurement of a change in temperature with time Fig. 13(b) is a graph showing the measurement result of Example 1, and Fig. 13(c) is a graph showing the measurement result of Example 2. FIG.
It is a schematic diagram of the measuring apparatus used for the measurement of Example 1 and Example 2. FIG.
Fig. 15 is a perspective view for explaining sampling points of samples used for measurement of endothermic peaks in Examples 3 and 4;
It is a figure which shows the measured value of Example 3 and Example 4. FIG.
17 is a graph showing measurement results of Examples 3 and 4;
18A and 18B are diagrams showing the imaging results of the projections of Example 5, and (c) and (d) are diagrams showing the imaging results of the projections of Example 6. FIG.
19(a) and 19(b) are views showing the imaging results of the projections of Example 7, and FIGS. 19(c) and 19(d) are diagrams showing the imaging results of the projections of Example 8. FIG.
Fig. 20(a) is a perspective view showing a first example of the body part of the heating implement according to the sixth embodiment, and Fig. 20(b) is a perspective view showing a second example of the body part of the heating implement according to the sixth embodiment.
Fig. 21 (a) is a perspective view of the heating implement according to the sixth embodiment, Fig. 21 (b) is a side view of the heating implement according to the sixth embodiment, and Fig. 21 (c) is a sectional view taken along line CC of Fig. 21 (b). .

There is a demand for a heating implement having a protrusion so that the skin of a living body such as a human body can be pressed more sufficiently. However, in the heating implement of patent document 1, in realizing such a request|requirement, there is still room for improvement.

The present invention relates to a heating implement having a structure capable of more sufficiently pressing the skin of a living body such as a human body by means of a protrusion.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is demonstrated using drawings. In addition, in all the drawings, the same code|symbol is attached|subjected to the same component, and overlapping description is abbreviate|omitted suitably.

[First Embodiment]

1 to 4 , the heating implement 100 according to the present embodiment is a sheet 10 having a convex projection 12 on one side 10a ( FIGS. 3 and 4 ) side. and the heat generating material 30 (FIG. 3, FIG. 4) arrange|positioned at the other surface 10b (FIG. 3, FIG. 4) side of the sheet|seat 10. It is provided.

The sheet 10 is comprised including the nonwoven fabric sheet 15 (FIG. 4).

The nonwoven fabric sheet 15 has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak is within a temperature range of 60°C or higher and 180°C or lower, and the second endothermic peak is higher than the first endothermic peak. exists on the high-temperature side.

For this reason, since the nonwoven fabric sheet 15 is molded at a molding temperature intermediate between the first endothermic peak and the second endothermic peak to form the protrusion 12, the rigidity of the protrusion 12 can be sufficiently ensured, It is possible to sufficiently press the skin of a human body etc. by the protrusion part 12. As shown in FIG.

In addition, as long as the 2nd endothermic peak of the nonwoven fabric sheet 15 is higher than the temperature of a 1st endothermic peak, 180 degrees C or less may be sufficient as it.

In this embodiment, the three-dimensional protrusion part 12 is preferably formed by shape|molding a nonwoven fabric sheet, maintaining the mesh structure with air permeability so that it may mention later.

The method includes (1) a method of deforming a flexible network structure following the molding process into a desired shape and maintaining the state (shape), and (2) deforming the network structure while elastically expanding and contracting. , a method of maintaining that state is mentioned.

In the method of (1), a flexible nonwoven fabric capable of allowing deformation to the desired shape of the protrusion 12 is molded, and in that state, the fibers (fibers of the first resin material to be described later) are partially bound together. (Bundled by the binding part of the 2nd resin material mentioned later), and the shape is maintained. Therefore, a nonwoven fabric containing two or more resins is used and molded at a temperature higher than that at which one or more resins on the low melting point side can bind with other resins.

In this molding, the resin fibers on the high melting point side (fibers of the first resin material) are deformed while maintaining their structure without being melted, and the resin having a melting point lower than the molding temperature binds the fibers to each other and maintains the shape after deformation. make it

The nonwoven fabric sheet (blended cotton, core sheath, etc.) subjected to the molding process by the method of (1) has a deformable structure and has two or more endothermic peaks which are melting points of each resin. In the method of (1), the projection part 12 can be formed by shape|molding at the temperature between the peaks of both ends in the temperature axis among these endothermic peaks.

In the method of (2), the shape after the deformation|transformation can be maintained by deforming the said nonwoven fabric fiber in the temperature state which can deform|transform the nonwoven fabric fiber comprised without melting, and cooling it. That is, in the method of (2), it is preferable to shape|mold in the temperature range which a nonwoven fabric can deform|transform (without film-forming) without destroying the structure of a nonwoven fabric.

In more detail, in the case of this embodiment, the nonwoven fabric sheet 15 is comprised by the fiber comprised with the 1st resin material, and the 2nd resin material of a lower melting point than the 1st resin material, and the fibers are separated. It is configured to include a binding portion to be bound.

In this way, the sheet 10 is a nonwoven fabric sheet including fibers made of a first resin material and a binder portion made of a second resin material having a lower melting point than the first resin material and binding the fibers together. Since it has (15), the rigidity of the sheet|seat 10, and also the rigidity of the projection part 12 of the sheet|seat 10 can fully be ensured. Accordingly, it is possible to sufficiently press the skin of a living body such as a human body by the projection 12 .

In the case of the present embodiment, the first endothermic peak is the melting point of the second resin material. Moreover, the 2nd endothermic peak of the nonwoven fabric sheet 15 is melting|fusing point of 1st resin material.

Further, the sheet 10 and the nonwoven fabric sheet 15 are made of at least one resin material having a melting point lower than that of the first resin material and higher than that of the second resin material, and higher than the resin material. Further comprising a second binder binding the fibers of the resin material of the melting point (the resin group (including at least the first resin material) that does not melt during the processing of the nonwoven fabric accompanying the molding of the protrusion 12) there may be

By attaching the heating implement 100 to a living body such as a human body in a state in which the protrusion 12 is in pressure contact with the skin, the surface layer of the living body is heated by the heat of the heating material 30 while pressing the skin of the living body with the protrusion 12 . can be warmed

Thereby, for example, by giving stimulation by the pressure by the protrusion 12 and the heat of the heat generating material 30 to the fascia of the lower layer of the skin, the meridians and acupuncture points can be stimulated by pressure and heat as in acupuncture. .

In addition, in the state before use, the heating implement 100 is hermetically accommodated in a packaging material (not shown). When the packaging material is opened and the heating element 100 is taken out from the packaging material, oxygen contained in the outside air is supplied to the heating material 30 so that the heating material 30 generates heat.

The sheet 10 has, for example, a flat sheet-like base 11 and a convexly curved surface 10a on one side of the sheet 10 with respect to the base 11 and the other side 10b. ) side is provided with the projection 12 which becomes the cavity 13.

In the case of this embodiment, the heat generating material 30 is filled in the cavity 13 of the projection part 12 of the sheet|seat 10, for example.

However, the present invention is not limited to this example, and the heat generating material 30 does not need to be filled in the cavity 13 .

The heating implement 100 is provided with a body part 50 which is applied to a part of the skin of a living body to which heat is to be applied.

The body portion 50 includes, for example, the seat 10 , the heat generating material 30 filled in the cavity 13 of the protrusion 12 of the seat 10 , and the other side of the seat 10 . A structure comprising a second sheet 20 (FIG. 3) laminated on the side of the face 10b, and an absorbent sheet 40 (FIG. 3) laminated between the second sheet 20 and the base 11 has been In addition, depending on the composition of the heat generating material 30, etc., the heating implement 100 does not need to be equipped with the absorbent sheet 40. As shown in FIG.

In the following description, the protrusion direction (downward in FIG. 3) of the protrusion part 12 in the main body part 50 is called a front side, and the direction opposite to the protrusion direction of the protrusion part 12 (in FIG. 3). upper side) is sometimes referred to as a rear side.

Although the planar shape of the body part 50 is not specifically limited, For example, as shown in FIG. 2, it can be made into the quadrangular shape (for example, square shape) in which the four corner|angular parts were each chamfered. However, the planar shape of the body part 50 may be other shapes, such as a polygonal shape other than a quadrangle, a circle|round|yen, an ellipse.

The sheet 10 constitutes the outer surface of the front side of the main body 50 . For example, the heating implement 100 is used in a state in which the sheet 10 (in particular, the projection 12) is in direct contact with the skin of the living body.

In the case of this embodiment, the sheet|seat 10 is comprised by the nonwoven fabric sheet 15 (FIG. 4) of one layer.

Moreover, the 2nd sheet|seat 20 comprises the outer surface of the back side of the main-body part 50. As shown in FIG.

The sheet 10 and the second sheet 20 are formed, for example, in the same planar shape as each other, overlap each other in a state where their outlines coincide with each other, and their peripheral edges are joined to each other.

Thus, the absorbent sheet 40 is held between the base 11 of the sheet 10 and the second sheet 20 .

In the case of the present embodiment, the heat generating material 30 is held between the inner peripheral surface of the projection 12 of the sheet 10 and the absorbent sheet 40 .

The heat generating material 30 is comprised including, for example, a metal to be oxidized, a water-retaining agent, and water. When oxygen is supplied to the metal to be oxidized in the heat generating material 30 , the heat generating material 30 generates heat.

Moreover, the heat generating material 30 may contain iron and a carbon component.

The iron as used herein may be at least a part of the metal to be oxidized, or may be separate from the metal to be oxidized. The iron referred to herein is iron to be oxidized.

Moreover, at least a part of the said water-retaining agent may be sufficient as the carbon component here, and the heat generating material 30 may contain the carbon component separately from the said water-retaining agent.

In the body portion 50 , the portion corresponding to the projection 12 of the sheet 10 is filled with the heat generating material 30 , and the seat 10 and the second sheet are also located in the portion corresponding to the base 11 . The heat generating material 30 may be filled between (20). However, even in this case, the thickness of the heat generating material 30 in the portion corresponding to the projection 12 of the sheet 10 is greater than the thickness of the heat generating material 30 in the portion corresponding to the base 11 . A large one is preferable, and by doing in this way, it is possible to sufficiently locally warm a site corresponding to the protrusion 12 in the skin of the living body.

More preferably, a portion of the sheet 10 corresponding to the protrusion 12 is locally filled with the heating material 30 , and at least a portion of the portion corresponding to the base 11 is provided with the heating material 30 . does not exist

In the case of this embodiment, the portion of the sheet 10 corresponding to the protrusion 12 is filled with the heat generating material 30, whereas the portion corresponding to the base 11 is substantially filled with the heat generating material 30. does not exist

The heat generating material 30 is preferably filled in at least a portion corresponding to the tip of the protrusion 12 in the cavity 13 . Thereby, the skin of a living body can be warmed by the front-end|tip part of the protrusion part 12. As shown in FIG.

For example, in the height direction of the cavity 13, the heat generating material 30 is located in a region 50% or more from the lower end side in Fig. 4 (the region corresponding to the lower half of the range shown by the height dimension H2 in Fig. 4). It is preferable to be filled.

In more detail, in the case of this embodiment, the heat generating material 30 is filled in 70% or more of the area|region in the height direction of the cavity 13, for example. That is, as shown in FIG. 4, the height dimension of the area|region with which the heat generating material 30 is filled in the cavity 13 with respect to the height dimension H2 of the cavity 13 is 0.7H2 or more.

Thereby, the projection part 12 can be heated more fully, and the skin of a living body can be fully warmed by the projection part 12.

It is more preferable that the heat generating material 30 is filled in 90% or more of the area|region in the height direction of the cavity 13, for example. That is, it is more preferable that the height dimension of the area|region filled with the heat generating material 30 in the cavity 13 is set to 0.9H2 or more.

Thus, it is preferable that it is 70 % or more, and, as for the filling rate of the heat generating material 30 in the height direction of the cavity 13, it is more preferable that it is 90 % or more.

In the case of this embodiment, for example, the rear surface (upper surface in Fig. 4) of the base 11 of the sheet 10 and the rear surface (upper surface in Fig. 4) of the heat generating material 30 are flush with each other.一) is made.

Here, the measuring method of the filling factor of the heat generating material 30 in the height direction of the cavity 13 is demonstrated.

As the measuring device, a laser microscope or a laser displacement meter capable of measuring a height difference is used. As the laser displacement gauge, a one-dimensional spot type, two-dimensional laser displacement gauge, a three-dimensional laser displacement gauge, or the like can be used. According to the shape and height dimension of the protrusion 12, an appropriate laser displacement meter is selected based on the required measurement distance and the spot distance of the laser light. For example, the sensor head manufactured by Keyence; IL-300 (measurement distance 160 mm - 450 mm, spot diameter phi 500 micrometers) can be used.

To measure, the body part 50 is taken out from the heating implement 100 in a nitrogen atmosphere so that the heat generating material 30 does not generate heat, and the second sheet 20 and the absorbent sheet 40 are separated from the sheet 10. It is removed to expose the surface (the upper surface of the heat generating material 30 in FIG. 4 ) on the proximal end side of the protrusion 12 in the heat generating material 30 in the cavity 13 .

The measurement by the measuring device is performed by irradiating the laser beam perpendicularly to the sheet 10 . In this measurement, the difference in elevation between the base-end surface of the protrusion 12 of the heat generating material 30 (the upper surface of the heat generating material 30 in FIG. 4 ) and the other surface 10b of the sheet 10 . measure At this time, the laser beam is directed in the radial direction of the surface (which also coincides with the radial direction of the projection 12) so that the laser light passes through the center of the surface on the proximal side of the protrusion 12 of the heat generating material 30. Scan, and find the maximum value of the difference in elevation. At this time, the scan distance is set to a distance longer than the diameter of the projection 12 .

Let the height dimension of the heat generating material 30 be the value obtained by subtracting the maximum value of the height difference calculated|required by the measurement from the height dimension H2 shown in FIG.

Here, when the shape of the inner circumferential surface of the protrusion 12 and the shape of the outer circumferential surface of the protrusion 12 (the shape of the outer circumferential surface of the cavity 13) are substantially the same, the height dimension H2 is the height dimension shown in FIG. 4 for convenience. H1 can be used.

That is, let the height dimension of the heat generating material 30 be the value obtained by subtracting the maximum value of the height difference calculated|required by measurement from the height dimension H1.

For this purpose, the height dimension H1 is measured as follows. That is, when measuring the height difference, the front and back sides of the sheet 10 are reversed, and the maximum value of the height difference when the laser beam is scanned is obtained by passing the apex of the protrusion 12 . At this time, a laser beam is scanned in the radial direction of the projection part 12, and a scanning distance is set to the distance longer than the diameter of the projection part 12.

On the other hand, when the shape of the inner circumferential surface of the protrusion 12 and the shape of the outer circumferential surface of the protrusion 12 (the shape of the outer circumferential surface of the cavity 13) are different, for example, when the outer circumferential surface of the cavity 13 is a horn object, nitrogen In the atmosphere, the heat generating material 30 contained in the cavity 13 is removed. At this time, the heat generating material 30 is removed using a brush or the like, taking care not to change the shape of the cavity 13 . And the height dimension (height dimension H2) of the cavity 13 is measured by scanning a laser beam similarly to the measurement of the said maximum value of a height difference.

Although the shape of the projection part 12 is not specifically limited, For example, it is a shape tapering toward the front-end|tip side. However, it is preferable that the front-end|tip part of the projection part 12 is made into a round shape.

The shape of the protrusion 12 can be, for example, a cone shape, such as a cone shape, an elliptical cone shape, or a long cone shape, or a cone shape, such as a cone shape, an elliptical cone shape, or a long cone shape.

In the case of this embodiment, the shape of the projection part 12 is formed in conical shape.

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Although the height dimension H1 (FIG. 4) of the protrusion part 12 is not specifically limited, For example, it is preferable that it is 2 mm or more and 15 mm or less, It is more preferable that it is 3 mm or more and 10 mm or less, It is 5 mm or more and 8 mm or less. more preferably.

When the height dimension H1 of the protrusion 12 is 2 mm or more and 15 mm or less, the skin of the living body can be sufficiently and moderately pressed by the protrusion 12 .

Although the diameter of the projection part 12 is not specifically limited, For example, it is preferable that they are 2 mm or more and 38 mm or less, It is more preferable that they are 5 mm or more and 20 mm or less. When the diameter of the protrusion 12 is 2 mm or more and 38 mm or less, the skin of the living body can be sufficiently and moderately pressed by the protrusion 12 .

Although the inclination angle (alpha) (FIG. 4) of the projection part 12 is not specifically limited, For example, it is preferable that it is 30 degrees or more, and it is more preferable that it is 45 degrees or more. When the inclination angle α of the protrusion 12 is 30 degrees or more, the skin of the living body can be sufficiently pressed by the protrusion 12 .

Moreover, it is preferable that it is 80 degrees or less, and, as for the inclination angle (alpha) of the projection part 12, it is more preferable that it is 70 degrees or less, It is still more preferable that it is 65 degrees or less. When the inclination angle α of the protrusion 12 is 80 degrees or less, the degree of penetration of the protrusion 12 into the skin of the living body can be made into an appropriate range.

Moreover, as mentioned above, it is preferable that the front-end|tip part of the protrusion part 12 has a round shape. And, it is preferable that they are 0.5 mm or more and 3.0 mm or less, and, as for the radius of curvature of the front-end|tip part of the projection part 12, it is more preferable that they are 0.8 mm or more and 1.5 mm or less.

Here, if the fascia is, for example, a part of the human shoulder, it is located at a depth of about 6 mm from the surface of the skin, and the shape of the protrusion 12 and the heating material so that a pressing action and a warming action are applied to the depth. It is preferable that the heat generation performance of (30) is set. Moreover, about the heat generating performance of the heat generating material 30, it is preferable that the temperature of the surface of the skin is set so that it may become 37 degreeC or more and 44 degrees C or less, for example, and it is set so that it may become 38 degreeC or more and 42 degrees C or less. more preferably.

Although arrangement|positioning of the some protrusion part 12 is not specifically limited, For example, it can be set as arrangement|positioning, such as a zigzag lattice form, a square lattice form.

In the case of the present embodiment, for example, as shown in FIG. 2 , the sheet 10 has five projections 12 arranged in a zigzag grid. In more detail, one projection 12 is disposed in the center of the sheet 10 , and the remaining four projections 12 are disposed around the projection 12 . These four projections 12 are respectively arranged at the four corners of the sheet 10 .

Although the distance L (FIG. 2) between the centers of adjacent protrusions 12 is not particularly limited, the height dimension H1 of the protrusions 12 (FIG. 4) or more is preferable, and it is more preferable that it is 1.5 times or more of the height dimension H1. . By doing in this way, the skin of the living body can be sufficiently pressed by the individual projections 12 .

Here, in the state of the sheet 10 in which the heat generating material 30 is not filled in the protrusion 12 , when the protrusion 12 is pressed in the direction perpendicular to the plane of the sheet 10, one protrusion 12 per , so that the protrusion 12 does not substantially plastically deform with a force of 1 N and the protrusion 12 is deformed in the elastic deformation range, and the protrusion 12 plastically deforms with a force of 25 N, 12) is preferably set, and the protrusion 12 does not substantially plastically deform with a force of 5 N per one protrusion 12, and the protrusion 12 deforms in the range of elastic deformation. It is more preferable that the load resistance of the protrusion 12 is set so that this occurs and the protrusion 12 plastically deforms with a force of 18N.

By doing in this way, the skin of the living body can be sufficiently pressed by the protrusion 12, and the degree of penetration of the protrusion 12 with respect to the skin of the living body can be made into an appropriate range.

Here, the perpendicular direction of the sheet 10 is the normal direction of the sheet 10 (direction orthogonal to one surface 10a of the sheet 10 ).

In addition, when the protrusion 12 of the main body 50 filled with the heat generating material 30 in the protrusion 12 is pressed in the direction perpendicular to the sheet 10 , 3 N per one protrusion 12 . The load resistance of the portion corresponding to the projection 12 in the body portion 50 is set so that the projection 12 is not substantially plastically deformed by force and the projection 12 is deformed within the elastic deformation range. Preferably, the protrusion 12 in the main body 50 so that even with a force of 5 N, the protrusion 12 does not substantially plastically deform and the protrusion 12 is deformed within the elastic deformation range. It is more preferable that the load-bearing capacity of the part corresponding to .

By doing in this way, the skin of the living body can be sufficiently pressed by the protrusion 12, and the degree of penetration of the protrusion 12 with respect to the skin of the living body can be made into an appropriate range.

At least one of the sheet 10 and the second sheet 20 constituting the front and rear outer surfaces of the main body 50 has air permeability. Thereby, oxygen is supplied to the heat generating material 30 through at least one of the sheet|seat 10 or the 2nd sheet|seat 20, and the heat generating material 30 is made to generate heat.

In the case of the present embodiment, for example, the sheet 10 has air permeability.

That is, since the sheet 10 is constituted including the nonwoven fabric sheet as described above, the rigidity of the sheet 10 and furthermore the rigidity of the projections 12 can be sufficiently secured, and the sheet 10 is It has breathability.

For this reason, while being able to supply oxygen to the heat generating material 30 through the sheet|seat 10, for example, water vapor|steam can be discharged|released through the sheet|seat 10. As shown in FIG.

More specifically, the sheet 10 has air permeability also in the protrusions 12 , and oxygen can be supplied to the heat generating material 30 through the protrusions 12 , and water vapor through the protrusions 12 . can be emitted.

In the case of this embodiment, for example, the air permeability of the sheet 10 is higher than that of the second sheet 20 .

That is, the heating implement 100 includes a second sheet 20 laminated on the other side 10b side of the sheet 10 , and the air permeability of the sheet 10 is higher than the air permeability of the second sheet 20 . High permeability.

More specifically, in the case of this embodiment, the 2nd sheet|seat 20 is a non-breathable sheet|seat which does not pass air substantially, for example.

Here, the air permeability of the sheet 10 is preferably 1 second/100 ml or more, and more preferably 3 seconds/100 ml or more. Moreover, Preferably it is 20000 sec/100 ml or less, More preferably, it is 10000 sec/100 ml or less.

Moreover, the air permeability of the nonwoven fabric sheet 15 becomes like this. Preferably it is 1 second/100 ml or more, More preferably, it is 3 second/100 ml or more. Moreover, Preferably it is 20000 sec/100 ml or less, More preferably, it is 10000 sec/100 ml or less.

The air permeability of the second sheet 20 is preferably 1000 sec/100 ml or more, and more preferably 8000 sec/100 ml or more.

The air permeability is a value measured by JIS P8117, and is defined as the time for 100 ml of air to pass through an area of 6.45 cm 2 under a constant pressure. The air permeability can be measured with an Oken-type air permeability meter or a measuring instrument similar thereto.

In the present specification, the term "having air permeability" means that the air permeability is 190000 seconds/100 ml or less, and preferably, the air permeability is 100000 seconds/100 ml or less. In addition, the non-breathable property means that the air permeability exceeds 190000 seconds/100 ml.

In the case of this embodiment, there is more content of the 1st resin material in the nonwoven fabric sheet 15 than content of the 2nd resin material in the nonwoven fabric sheet 15.

Thereby, the rigidity of the sheet 10 can be made into a suitable range (not too hard). Moreover, the air permeability of the sheet|seat 10 can be ensured easily.

The absorbent sheet 40 is laminated on the other side 10b side of the sheet 10 with respect to the base 11 .

That is, the heating implement 100 is provided with the absorbent sheet 40 (FIG. 3) laminated|stacked on the other side 10b side with respect to the base 11 of the sheet|seat 10. As shown in FIG.

When the heating implement 100 includes the absorbent sheet 40 , excess water in the heat generating material 30 can be absorbed by the absorbent sheet 40 . Therefore, when the heating implement 100 is taken out from the packaging material, the heating material 30 can generate heat quickly.

As the absorbent sheet 40, for example, a sheet constituted by an absorbent polymer, a rayon nonwoven fabric, a cellulose nonwoven fabric, or paper can be used.

Especially, it is preferable that the absorbent sheet 40 is comprised including a water absorbent polymer, and such a water absorbent sheet 40 may be obtained by shape|molding a water absorbent polymer into a sheet form.

It is preferable that the absorbent sheet 40 covers at least the rear side of each protrusion 12 . In this case, the absorbent sheet 40 covers the rear side of the filling region of the heat generating material 30 filled in each projection 12 . Accordingly, moisture in the heat generating material 30 filled in each projection 12 can be preferably absorbed by the absorbent sheet 40 .

Further, in the present embodiment, the heating implement 100 may have a water absorbent polymer discontinuously disposed (arranged in a shape not in a sheet shape) instead of the absorbent sheet 40 .

In addition, in the case of this embodiment, it is preferable that the heat generating material 30 does not contain a water absorbent polymer substantially, and by doing in this way, the content rate of the oxidizable metal in the heat generating material 30 can fully be ensured. Therefore, the amount of heat generated by the heat generating material 30 and the duration of heat generation can be sufficiently secured.

The heating implement 100 is provided with a mounting part 60 for attaching the heating implement 100 to a living body in a state in which the protruding part 12 is in pressure contact with the skin.

The attaching part 60 is provided with a pair of attaching band parts 61 formed in the shape of a slightly elongate strip|belt in one direction (left-right direction in FIG. 2), respectively, for example, and it is comprised, for example.

As mentioned above, in the case of this embodiment, the planar shape of the main-body part 50 is rectangular shape. For example, along each of a pair of mutually opposing edges of the body part 50, the base end part 66 which is one end in the longitudinal direction of each attachment band part 61 is being fixed.

The attachment band part 61 is provided with the sheet-like attachment part structural sheet 63, and the adhesive layer 64 formed on one surface in the part on the front-end|tip side of the attachment part structural sheet 63, and is comprised.

The adhesive layer 64 is formed on the surface of the attaching part constituting sheet 63 on the skin side when the heating implement 100 is attached to the living body.

In this way, the attaching part 60 is comprised including the adhesive sheet part (for example, the part in which the adhesive layer 64 is formed in the attaching part constituting sheet 63) which is adhesively fixed to the skin.

For this reason, by adhesively fixing the pressure-sensitive adhesive sheet portion to the skin in a state in which tension is applied to the attaching portion 60, the projection 12 is pressed against the skin 91 as shown in FIG. It can be mounted on a living body.

The site to which the heating implement 100 is attached in the living body is not particularly limited. For example, the heating device 100 can be attached to a body portion such as a shoulder or back, an arm portion such as a wrist, a leg portion such as a sole, or a head portion such as an eye area.

Moreover, in the state before use of the heating implement 100, the release paper 65 which covers the adhesive layer 64 is affixed to each attachment band part 61. As shown in FIG.

When the heating implement 100 is used, the release paper 65 is peeled off from each attachment band portion 61 and the adhesive layer 64 of each attachment band portion 61 is adhered to the skin 91, whereby the heating implement 100 is ) can be mounted on the living body.

Here, in the case of this embodiment, the mounting part structural sheet 63 is comprised with the material which can expand-contract in the longitudinal direction of the said mounting part structural sheet 63. That is, each attachment part structural sheet 63 is expandable and contractible in the arrow B direction in FIG.

In this way, the attaching part 60 is comprised including the elastic stretchable sheet|seat part. In the case of this embodiment, for example, the whole of the attachment part structural sheet 63 is an elastic sheet part.

In a state in which the attachment band portion 61 is stretched in the longitudinal direction of the attachment band portion 61, the adhesive layer 64 at the distal end of the attachment band portion 61 is attached to the skin 91, whereby the projection ( 12) can be pressed against the skin 91 .

Hereinafter, examples of materials and properties of each part of the heating implement 100 will be described in more detail.

As the metal to be oxidized in the heat generating material 30, a metal to be oxidized which is normally used as a material for this type of heat generating material can be used. As the metal to be oxidized, it is preferable to use a powder or a fibrous metal from the viewpoints of handleability, moldability, and the like.

Examples of the metal to be oxidized in the form of powder include iron powder, aluminum powder, zinc powder, manganese powder, magnesium powder, calcium powder and the like. It is preferably used.

As the metal to be oxidized in the form of powder, the particle size (hereinafter, referred to as the particle size, the maximum length in the form of powder, or the average measured by dynamic light scattering method, laser diffraction method, etc. It is preferable to use the thing of 0.1 micrometer or more and 300 micrometers or less, and it is more preferable to use the thing containing 50 mass % or more of particle diameters 0.1 micrometer or more and 150 micrometers or less.

Moreover, as a metal to be oxidized which has a fibrous form, a steel fiber, an aluminum fiber, a magnesium fiber, etc. are mentioned. Among these, a steel fiber, an aluminum fiber, etc. are used preferably from points, such as handleability and manufacturing cost. As the oxidizable metal having a fibrous form, it is preferable to use a fiber length of 0.1 mm or more and 50 mm or less and a thickness of 1 µm or more and 1000 µm or less from the viewpoint of heat generation performance and the like.

It is preferable that they are 30 mass % or more and 80 mass % or less, and, as for content of the oxidizable metal in the heat generating material 30, it is more preferable that they are 40 mass % or more and 70 mass % or less.

By making this content into 30 mass % or more, since the exothermic temperature of the protrusion 12 filled with the heat generating material 30 can fully be raised beyond the grade which a human|human touch with a fingertip etc. and feel hot, it is preferable.

By setting this content to 80 mass% or less, the air permeability of the heat generating material 30 becomes sufficient, and as a result, a reaction occurs sufficiently to the center of the heat generating material 30, and the exothermic temperature of the heat generating material 30 is sufficiently raised. can Moreover, in addition to being able to make the heat_generation|fever_generation time of the heat generating material 30 a sufficient length, the water supply by a water retaining agent can also be made sufficient.

Here, the content of the oxidizable metal in the heat generating material 30 is measured by a batch test according to JIS P8128, or when the oxidizable metal is iron, magnetization occurs when an external magnetic field is applied. Vibration sample type magnetization measurement test It can be measured or carried out by

As the water-retaining agent in the heat generating material 30, a water-retaining agent commonly used as a material for this type of heat generating material can be used. This water retaining agent functions as a water retention agent. Moreover, this water retaining agent may also have a function as a supply agent which maintains the oxygen supplied to a oxidizable metal, and supplies this oxygen to an oxidizable metal.

As this water-retaining agent, the thing of an inorganic material is used preferably, for example.

As this water-retaining agent, a porous material is used preferably, for example.

Examples of the water retaining agent include activated carbon (coconut coal, charcoal powder, bituminous coal, peat, and peat), carbon black, acetylene black, graphite, zeolite, perlite, vermiculite, silica, cancrinite, fluorite, and the like. Among these, activated carbon is preferably used from the viewpoint of having water holding capacity, oxygen supply capacity and catalytic capacity.

As this water-retaining agent, it is preferable to use a powdery substance having a particle diameter of 0.1 µm or more and 500 µm or less from the viewpoint of forming an effective contact state with the oxidized metal, and 50 It is more preferable to contain more than mass %.

As this water-retaining agent, the thing of forms other than the above-mentioned powder form can also be used, For example, the thing of fibrous forms, such as activated carbon fiber, can also be used.

It is preferable that they are 1 mass % or more and 50 mass % or less, and, as for content of the water retaining agent in the heat generating material 30, it is more preferable that they are 2 mass % or more and 40 mass % or less.

When this content is 1 mass % or more, the water|moisture content required for sustaining reaction can fully accumulate in the heat generating material 30 to the extent that a oxidizable metal temperature rises above a human body temperature by oxidation reaction. Moreover, since the air permeability of the heat generating material 30 is fully ensured, oxygen supply to the heat generating material 30 can fully be performed, and the heat generating efficiency of the heat generating material 30 can be made favorable.

By making this content into 50 mass % or less, since the heat capacity of the heat generating material 30 with respect to the amount of heat obtained can be suppressed, the exothermic temperature rise becomes large, and the temperature rise which a human can sense bodily as warmth is obtained.

The heat generating material 30 may contain an electrolyte.

As the electrolyte, an electrolyte commonly used as a material for this type of heat generating material can be used.

Examples of the electrolyte include chlorides or hydroxides of alkali metals, alkaline earth metals, or heavy metals. And among these, various chlorides, such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride, and iron chloride (1st, 2nd), are used preferably from the point which is excellent in electroconductivity, chemical stability, and production cost. These electrolytes can also be used individually or in combination of 2 or more types.

It is preferable that they are 0.5 mass % or more and 24 mass % or less, and, as for content of the electrolyte in the heat generating material 30, it is more preferable that they are 1 mass % or more and 10 mass % or less in water mass ratio in the heat generating material 30.

By setting this content to 0.5 mass % or more, the oxidation reaction of the heat generating material 30 can be sufficiently advanced and the electrolyte necessary for the heat generating function is secured, so the ratio of moisture in the heat generating material 30 can also be suppressed, As a result, an increase in the exothermic temperature can be sufficiently ensured.

By setting this content to 24 mass % or less, the air permeability of the heat generating material 30 can be improved and the electrolyte required for the heat generating function is secured. This is preferable because sufficient water is supplied to the oxidizable metal or the like, the heat generating performance is excellent, and the electrolyte can be uniformly blended with the heat generating material 30 .

Moreover, a thickener, a coagulant|flocculant, and other additives may be added to the heat generating material 30 by extension.

In order to uniformly fill the heat generating material 30 in the cavity 13 of the fine protrusion 12, it is preferable to fill the heat generating material 30 into the cavity 13 in the state of a slurry having fluidity, In this case, the heat generating material 30 preferably contains a thickener. As the thickener, a substance that mainly absorbs moisture to increase roughness or imparts thixotropy, for example, a water-soluble polymer material can be used.

The protrusion 12 of the heating implement 100 preferably has a heating attainable temperature of 35°C or more and 98°C or less, more preferably 38°C or more and 70°C or less, and still more preferably 42°C or more and 60°C or less.

The measurement of the heating attainable temperature of the heating implement 100 can be performed by the method equivalent to JIS S4100.

In the sheet 10 in which the protrusion 12 is filled with the heat generating material 30, the amount of water vapor generated in 10 minutes per unit weight (1 g) of the heat generating material 30 is 20 mg/g or more and 250 mg/g It is preferable that they are 70 mg/g or more and 180 mg/g or less are more preferable.

Here, this amount of water vapor (amount of water vapor generation) is measured, for example as follows.

The apparatus used for the measurement includes a measurement chamber made of aluminum (volume 4.2 L), an inflow path for introducing dehumidified air (less than 2% humidity, flow rate 2.1 L/min) into the lower portion of the measurement chamber, and the air flows out from the upper portion of the measurement chamber. It is equipped with an outflow path. The inlet is equipped with an inlet thermo-hygrometer and an inlet flow meter. On the other hand, the outlet path is equipped with an outlet thermo-hygrometer and an outlet flow meter. A thermometer (thermistor) is installed in the measurement room. As a thermometer, a thing with a temperature resolution of about 0.1 degreeC is used.

At a measurement environment temperature of 30°C (30±1°C), the heating implement 100 is taken out from the packaging bag, and placed in the measurement chamber with one side 10a of the sheet 10 facing up, and a metal sphere (mass 4.5) Place the thermometer with g) on it. In this state, dehumidified air flows from the lower part of the measurement room, and the difference in absolute humidity before and after air flows into the measurement room is calculated based on the temperature and humidity measured by the inlet thermo-hygrometer and the outlet thermo-hygrometer. Further, based on the flow rates measured by the inlet flowmeter and the outlet flowmeter, the amount of water vapor emitted by the heating implement 100 is calculated. The amount of water vapor generated from the start of the measurement until 10 minutes has passed is measured.

Examples of the material of the nonwoven fabric sheet 15 include synthetic fibers, natural fibers, and composite fibers thereof. Examples of the manufacturing method include a spun bond method, a needle punch method, a spun lace method, a melt blow method, a flash spinning method, and an air-laid method. , an air-through method, and the like.

In the case of this embodiment, the nonwoven fabric sheet 15 is comprised including the fiber comprised by the 1st resin material, and the binder part comprised by the 2nd resin material and binding the fibers together.

Although the first resin material constituting the nonwoven fabric sheet 15 is not particularly limited, for example, polyethylene, polypropylene, nylon, rayon, polystyrene, acrylic, vinylon, cellulose, aramid, polyvinyl alcohol, polyethylene naphthalate, or Polyethylene terephthalate is mentioned, Among these, it is preferable that it is polyethylene terephthalate (PET).

Although the 2nd resin material which comprises the nonwoven fabric sheet 15 is not specifically limited, It is preferable that it is a material of a lower melting point than the 1st resin material which comprises the nonwoven fabric sheet 15. The second resin material constituting the nonwoven fabric sheet 15 is, for example, polyethylene, polypropylene, ethylene vinyl acetate resin, or low-melting PET (copolymerized polyester). Among them, polyethylene or low It is preferable that it is PET of melting|fusing point.

Moreover, the fiber which comprises the nonwoven fabric sheet 15 may become the core-sheath structure containing the core comprised by the 1st resin material, and the sheath comprised by the 2nd resin material.

There is more content of the 1st resin material in the nonwoven fabric sheet 15 than content of the 2nd resin material in the nonwoven fabric sheet 15.

Preferably, content of the 1st resin material in the nonwoven fabric sheet 15 is 60 mass % or more and 95 mass % or less. Moreover, content of the 2nd resin material in the nonwoven fabric sheet 15 is 5 mass % or more and 40 mass % or less.

By setting content of the 1st resin material and 2nd resin material in the nonwoven fabric sheet 15 in this way, the rigidity of the nonwoven fabric sheet 15 can fully be ensured, ensuring the air permeability of the nonwoven fabric sheet 15 fully. .

It is preferable that the basis weight of the nonwoven fabric sheet 15 is 15 g/m<2> or more and 500 g/m<2> or less, especially 30 g/m<2> or more and 350 g/m<2> or less. When the basis weight of the nonwoven fabric sheet 15 is 15 g/m 2 or more, sufficient strength of the sheet 10 can be ensured, and the temperature of the heat generating material 30 can be moderately moderated and transmitted to the skin. When the basis weight of the nonwoven fabric sheet 15 is 500 g/m 2 or less, the temperature of the heat generating material 30 can be efficiently transmitted to the skin through the sheet 10 .

The thickness of the base 11 of the sheet 10 is preferably 0.03 mm or more and 2.6 mm or less, and particularly preferably 0.08 mm or more and 1.25 mm or less. When the thickness of the base 11 is 0.03 mm or more, the shape retention properties of the sheet 10 (particularly the shape retention properties of the protrusions 12 ) and furthermore the shape retention properties of the body part 50 become good. When the thickness of the base 11 is 2.6 mm or less, the heat transfer property of the sheet 10 becomes good.

The moisture permeability of the sheet 10 is, for example, preferably 1000 g/(m2·24h) or more and 17000 g/(m2·24h) or less, and 2000 g/(m2·24h) or more and 12000 g/(m2·24h) or more. ) or less is more preferable.

In the case of the present embodiment, the moisture permeability of the second sheet 20 is lower than that of the sheet 10 .

The water vapor transmission rate of the second sheet 20 is, for example, preferably 2000 g/(m 2 ·24h) or less, and particularly preferably 1000 g/(m 2 ·24h) or less.

When the moisture permeability of the second sheet 20 is set in such a range, the direction of generation of water vapor accompanying heat generated by the heat generating material 30 can be regulated by the second sheet 20 . For example, supply of oxygen to the heat generating material 30 is performed from the sheet 10 side, and generation of water vapor from the second sheet 20 can be suppressed, so that water vapor is mainly supplied from the sheet 10 side. can make it happen.

The second sheet 20 preferably has a basis weight of 10 g/m 2 or more and 200 g/m 2 or less, and 20 g/m 2 or more and 100 g/m 2 or less. When the basis weight of the second sheet 20 is set in such a range, the direction of generation of water vapor accompanying heat generation can be regulated by the second sheet 20 .

The second sheet 20 includes a resin film composed of a resin such as polyolefin such as polyethylene and polypropylene, polyester, polyamide, polyurethane, polystyrene, nylon, polyvinylidene chloride, and polyethylene-vinyl acetate copolymer. and a sheet in which an inorganic filler such as titanium oxide is blended in the resin, in particular, the hiding property of the heat generating material 30 by the second sheet 20 is improved. The second sheet 20 may be used by stacking a plurality of sheets.

More specifically, examples of the second sheet 20 include a laminated sheet of paper and the resin film, and a laminated sheet of a nonwoven fabric and the resin film. In this case, the resin film is on the inner surface side (absorbent sheet 40 side) of the second sheet 20 , and the paper or nonwoven fabric constituting the second sheet 20 is placed on the outer surface side (rear surface side) of the second sheet 20 . side) is placed. Furthermore, in order to suppress heat dissipation to the back side, a nonwoven fabric may be laminated on the back side of the second sheet 20 .

When the absorbent sheet 40 is an absorbent polymer sheet, the absorbent polymer constituting the absorbent polymer sheet is a polymer particle having water absorbency.

The shape of the absorbent polymer is not particularly limited, and may be spherical, lumpy, grape-like, irregular, porous, powdery or fibrous. The average particle diameter of the water absorbent polymer may be 100 µm or more and 1000 µm or less, preferably 150 µm or more and 650 µm or less, for the purpose of suppressing the drop-off of the water absorbent polymer from the body part 50 or the movement of the water absorbent polymer. and more preferably 200 µm or more and 500 µm or less.

As an example, in order to obtain a water absorbent polymer, one or more types of monomers selected from the following monomers are polymerized, and further, if necessary, crosslinked. The polymerization method here is not particularly limited, and various polymerization methods of the water-absorbing polymer generally known, such as a reverse phase suspension polymerization method and an aqueous solution polymerization method, can be employed. Then, the polymer obtained by polymerization is subjected to processing such as pulverization and classification as necessary, the polymer is adjusted to a desired average particle diameter, and, if necessary, inorganic fine particles are treated to obtain a water absorbing polymer.

As a monomer used when manufacturing a water absorbent polymer, it can use the monomer which is water-soluble and has a polymerizable unsaturated group. More specifically, as this monomer, olefinic unsaturated carboxylic acid or its salt, olefinically unsaturated carboxylic acid ester, olefinically unsaturated sulfonic acid or its salt, olefinically unsaturated phosphoric acid or its salt, olefinically unsaturated phosphoric acid ester, and vinyl monomers having a polymerizable unsaturated group such as an olefinically unsaturated amine, an olefinically unsaturated ammonium salt, and an olefinically unsaturated amide.

Although the thickness of the absorbent sheet 40 is not specifically limited, For example, it can be 0.05 mm or more and 2 mm or less, It is preferable to set it as 0.1 mm or more and 1 mm or less.

When the thickness of the absorbent sheet 40 is 0.05 mm or more, the absorbent sheet 40 can sufficiently absorb water. Moreover, when the thickness of the absorbent sheet 40 is 2 mm or less, the main-body part 50 can be comprised sufficiently thin.

The thickness of the absorbent sheet 40 can be measured, for example, by a Peacock gauge measurement method.

As the absorbent sheet 40, a sheet material capable of absorbing and maintaining moisture and having flexibility is used. As such a sheet material, fiber sheets, such as paper, nonwoven fabric, woven fabric, knitted fabric, etc. which use fiber as a raw material, porous bodies, such as a sponge, etc. are mentioned, for example. As a fiber used as a material of the absorbent sheet 40, what has natural fibers, such as plant fiber and animal fiber, as a main component, and the thing which has chemical fiber as a main component are mentioned, for example. Plant fibers include, for example, cotton, kapok, wood pulp, non-wood pulp, peanut protein fiber, corn protein fiber, soy protein fiber, mannan fiber, rubber fiber, hemp, manila hemp, sisal hemp, New Zealand hemp, napoma. , one type or two or more types selected from palm, chrysanthemum, and wheatgrass can be mentioned. The animal fibers include, for example, one or two types selected from wool, goat hair, mohair, cashmere, alpaca, angora, camel, vicuna, silk, down, feather, algin fiber, chitin fiber, and casein fiber. more can be mentioned. As a chemical fiber, 1 type(s) or 2 or more types chosen from rayon, acetate, and a cellulose can be used, for example.

Among them, the absorbent sheet 40 preferably contains a fiber material composed of the aforementioned fibers and a water absorbent polymer.

Assuming that the absorbent sheet 40 contains component (a) a fiber material and component (b) an absorbent polymer, in the form of the absorbent sheet 40, (i) component (a) and component (b) are One sheet in a uniformly mixed state, (ii) a sheet in which component (b) is disposed between the same or different sheets containing component (a), (iii) a sheet in which component (b) is dispersed Three forms of what was imaged can be illustrated.

Among these, the thing of the form (ii) is preferable. In addition, the absorbent sheet 40 of the form (ii) is, for example, uniformly dispersed in the absorbent polymer of the component (b) on a sheet containing the component (a), and 200 g/m 2 of After spraying an amount of water, the same or different sheets containing component (a) are laminated thereon, and press-dried at 100±0.5° C. and a pressure of 5 kg/cm 2 to obtain a moisture content of 5 mass% or less. It is possible to prepare by drying until

By using a hydrogel material capable of absorbing and holding a liquid 20 times or more of its own weight and capable of gelling as the water absorbent polymer, sufficient water absorption performance of the absorbent sheet 40 can be ensured. As a shape of the particle|grains of a water absorbent polymer, a spherical shape, a block shape, grape cluster shape, fibrous shape, etc. are mentioned. It is preferable that the particle diameter of the particle|grains of a water absorbing polymer is 1 micrometer or more, Furthermore, it is preferable that it is 10 micrometers or more. Moreover, it is preferable that the particle diameter of the particle|grains of a water absorbing polymer is 1000 micrometers or less, Furthermore, it is preferable that it is 500 micrometers or less. In addition, the particle size of the absorptive polymer particle is measured by a dynamic light scattering method, a laser diffraction method, or the like.

Specific examples of the water absorbent polymer include one or two or more selected from starch, crosslinked carboxymethylated cellulose, polymers or copolymers of acrylic acid or alkali metal acrylic acid, polyacrylic acid and salts thereof, and polyacrylate graft polymers. can Among them, it is preferable to use polyacrylic acid, a salt thereof, and a polyacrylate graft polymer, such as a polymer or copolymer of acrylic acid or alkali metal acrylate, in order to improve the absorbent performance of the absorbent sheet 40 .

It is preferable that the ratio of the particle|grains of the component (b) water absorbent polymer occupied in the absorbent sheet 40 is 10 mass % or more in a dry state, Furthermore, it is preferable that it is 20 mass % or more. Moreover, it is preferable that the ratio of the particle|grains of the component (b) water-absorbing polymer occupied in the absorbent sheet 40 is 70 mass % or less in a dry state, Furthermore, it is preferable that it is 65 mass % or less.

The absorbent sheet 40 preferably has a basis weight of 20 g/m 2 or more and 250 g/m 2 or less in a dry state, and preferably 40 g/m 2 or more and 220 g/m 2 or less, more preferably 60 g/m 2 . or more and 180 g/m 2 or less. The basis weight of the component (b) contained in the absorbent sheet 40 is preferably 5 g/m 2 or more and 200 g/m 2 or less, more preferably 10 g/m 2 or more and 170 g/m 2 or less, more preferably in a dry state. It is preferably 30 g/m 2 or more and 130 g/m 2 or less.

In the case of this embodiment, as the absorbent sheet 40, wood pulp paper (basis weight 20 g/m2), water absorbent polymer (spherical shape, average particle diameter 300 µm, basis weight 90 g/m2), and wood pulp paper (basis weight) 30 g/m 2 ) by laminating and integrating the absorbent polymer sheet can be used.

Although the material of the attachment part structural sheet 63 is not specifically limited, For example, it can be set as the nonwoven fabric which has elasticity. As a material of this nonwoven fabric, a synthetic fiber, a natural fiber, or these conjugated fiber is mentioned.

However, the attachment part structural sheet 63 is not limited to a nonwoven fabric, For example, a rubber fiber containing woven fabric etc. may be sufficient.

Although the material of the adhesive layer 64 is not specifically limited, For example, adhesive materials, such as a rubber type, an acrylic type, a silicone type, an emulsion type, a hot melt type, a water gel type, can be used.

Next, the manufacturing method of the heating implement which concerns on this embodiment is demonstrated.

The manufacturing method of the heating implement which concerns on this embodiment prepares the process of preparing the nonwoven fabric sheet 18 (FIG. 5(a)), The sheet|seat containing the nonwoven fabric sheet 18 (for example, the nonwoven fabric sheet 18) is prepared process is provided. Here, the nonwoven fabric sheet 18 has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak exists within a temperature range of 60°C or higher and 180°C or lower, and the second endothermic peak is the first endothermic peak. It exists on the higher temperature side than the peak.

Further, in this manufacturing method, the sheet is hot-pressed at a temperature intermediate between the first endothermic peak and the second endothermic peak to form the convex projections 12 on one face side of the sheet; The process of arranging the heat generating material 30 on the surface side is provided.

In more detail, in the case of this embodiment, the nonwoven fabric sheet 18 is comprised including the fiber comprised with the 1st resin material, and the 2nd resin material of a lower melting point than the 1st resin material.

In the step of forming the protrusion 12, the sheet is hot-pressed at a temperature intermediate between the melting point of the first resin material and the melting point of the second resin material, and the convex protrusion 12 is formed on one surface side of the sheet. .

In the case of this embodiment, the melting point of the first resin material is the first endothermic peak, and the melting point of the second resin material is the second endothermic peak.

First, the nonwoven fabric sheet 18 used as the base of the nonwoven fabric sheet 15 is prepared.

Here, the nonwoven fabric sheet 18 is comprised including, for example, the 1st fiber comprised by the 1st resin material, and the 2nd fiber comprised by the 2nd resin material (first fiber and in the case of blending of the second fiber). However, the fiber which comprises the nonwoven fabric sheet 18 may become the core-sheath structure containing the core comprised by the 1st resin material, and the sheath comprised by the 2nd resin material.

Next, the sheet 10 in which the projection part 12 was formed is shape|molded by heat-pressing with respect to the nonwoven fabric sheet 18. As shown in FIG.

Here, the temperature of the hot press is set to an intermediate temperature between the melting point of the first resin material and the melting point of the second resin material. That is, the temperature of the hot press is a temperature lower than the melting point of the first resin material and a temperature equal to or higher than the melting point of the second resin material.

Thereby, the second resin material is melted while the first resin material is not melted, so that, through the molten second resin material, the fiber constituted by the first resin material (the fiber has a core-sheath structure). It may be a part of the deliberation). That is, the molten second resin material constitutes a binding portion that binds the fibers made of the first resin material to each other.

As a result, the rigidity of the sheet 10 can be sufficiently secured while ensuring the air permeability of the sheet 10 . That is, the air permeability and rigidity of the base 11 can be sufficiently secured, and also with respect to the protrusion 12, from the base end to the distal end of the protrusion 12, while ensuring the air permeability, the whole can be made sufficiently rigid. have.

Here, the temperature of the hot press is as low as possible within a range in which the second resin material can be sufficiently melted (for example, a temperature of the second resin material +30 ° C. or lower, preferably the second resin material). is preferably set to a melting point of +20 °C or less). By doing in this way, the nonwoven fabric sheet 15 after hot pressing can have the texture of a nonwoven fabric, and the feel of the main body part 50 becomes favorable.

Here, for example, as shown in Fig. 5(a), the protrusion 12 is formed on the sheet 10 using the first mold 70 and the second mold 80 disposed opposite to each other. can

The first mold 70 includes a flat surface 71 facing the second mold 80 , and a plurality of projections 72 protruding from the flat surface 71 toward the second mold 80 .

The second mold 80 has a flat surface 81 opposed to the first mold 70, and a plurality of concave portions ( 82) is provided.

As shown in Fig. 5(b), the first mold 70 and the second mold 80 are brought close to each other and the sheet 10 is pressed in the thickness direction, while the first mold 70 and the second mold are pressed. A plurality of projections 12 are formed on the sheet 10 by heating the sheet 10 by (80). In the sheet 10, a portion corresponding to the flat surfaces 71 and 81 of the first mold 70 and the second mold 80 becomes the base 11, and the first mold 70 and the second mold 80 A portion corresponding to the protrusion 72 and the concave portion 82 of 80 becomes the protrusion 12 .

After the protrusion 12 is formed on the sheet 10 in this way, the protrusion 12 is filled with the heat generating material 30 .

For this purpose, a raw material composition (slurry) for the heat generating material 30 containing a metal to be oxidized, a water retaining agent, and water is prepared, and the raw material composition is poured into each protrusion 12 .

Thereby, the heat generating material 30 can be filled by following the shape of the inner peripheral surface of the protrusion part 12. As shown in FIG. Therefore, the shape of the heat generating material 30 can be made into the shape of a cone shape or the shape of a cone object similar to the shape of the protrusion part 12, for example.

After filling each projection 12 of the sheet 10 with the heat generating material 30 , the absorbent sheet 40 is laminated on the base 11 of the sheet 10 .

Further, the second sheet 20 is laminated on the absorbent sheet 40, and the periphery of the second sheet 20 and the periphery of the sheet 10 are bonded to each other.

Bonding of the 2nd sheet|seat 20 and the sheet|seat 10 may be performed using an adhesive agent, and may be performed by heat sealing.

In this way, the body part 50 can be manufactured.

Next, the base end portions 66 of the pair of attachment band portions 61 are joined to the main body portion 50, respectively.

Bonding of the attachment band part 61 with respect to the body part 50 may be performed using an adhesive agent, and may be performed by heat sealing.

In this way, the heating implement 100 is manufactured.

According to the first embodiment as described above, the heating implement 100 includes a sheet 10 having a convex projection 12 on one side 10a side, and a sheet 10 on the other side 10b side. The heat generating material 30 is provided, the sheet 10 is comprised including the nonwoven fabric sheet 15, The nonwoven fabric sheet 15 is comprised with the fiber comprised by the 1st resin material, It is comprised by the 2nd resin material of a lower melting point than the 1st resin material, and is comprised including the binding part which bind|concludes the fibers.

The sheet 10 is a nonwoven fabric sheet 15 including fibers made of a first resin material, and a binder portion made of a second resin material having a lower melting point than the first resin material and binding the fibers together. Since it has , the rigidity of the sheet 10 and furthermore the rigidity of the projection 12 of the sheet 10 can be sufficiently secured. Accordingly, it is possible to sufficiently press the skin of a living body such as a human body by the projection 12 .

In particular, in the case of this embodiment, since the sheet|seat 10 is comprised including the nonwoven fabric sheet 15, the rigidity of the said sheet|seat 10, furthermore, the rigidity of the projection part 12 can fully be ensured, but also , the sheet 10 has air permeability.

Thereby, the sufficient pressure action of the skin of the living body by the protrusion 12 and the release action of water vapor through the sheet 10 can be made compatible.

In addition, as described above, since the heating implement 100 includes the protrusion 12 and the heating material 30 contains a metal to be oxidized, a water retaining agent, and water, a needle or fire is used. Without heating, the living body can be warmed while being locally pressed by the protrusion 12 .

In addition, since the heating implement 100 is provided with a mounting part 60 for attaching the heating implement 100 to the living body in a state in which the protruding part 12 is in pressure contact with the skin, the heating implement 100 can be easily attached to the living body. While it can be attached to the body, for example, while performing other tasks such as watching TV or doing housework, local pressure and heating of the living body can be performed.

Next, a modified example of the planar shape of the sheet 10, the arrangement of the projections 12 and the shape of the projections 12 will be described with reference to Figs. 7(a) to 7(k).

<Modification 1>

7(a) and 7(b) are views for explaining the first modification of the planar shape of the sheet 10 and the arrangement of the protrusions 12, of which FIG. 7(a) is a plan view, FIG. 7 (b) is a cross-sectional view taken along line AA of FIG. 7(a).

In the case of this modification, the projections 12 having the same shape as those of the above embodiment are arranged in a zigzag grid, and the sheet 10 is provided with, for example, three horizontal rows of 10 projections 12 in total.

The planar shape of the sheet 10 is formed, for example, in a hexagonal shape. In addition, the planar shape of the body part 50 in the case of this modification is the same as the planar shape of the sheet|seat 10. As shown in FIG.

<Modification 2>

7(c) and 7(d) are views for explaining the second modification of the planar shape of the sheet 10, the arrangement of the protrusions 12 and the shape of the protrusions 12, of which Fig. 7( c) is a plan view, and FIG. 7(d) is a cross-sectional view taken along line AA of FIG. 7(c).

In the case of this modification, the projection 12 is formed in a conical shape. In other words, the top of the projection 12 is formed flat.

In the case of this modification, it is the same as that of modification 1 about the arrangement|positioning of the projection part 12 and the planar shape of the sheet|seat 10 (and the body part 50).

<Modification 3>

7(e) and 7(f) are views for explaining a third modified example of the planar shape of the sheet 10, the arrangement of the protrusions 12, and the shape of the protrusions 12, of which Fig. 7( e) is a plan view, and FIG. 7(f) is a cross-sectional view taken along line AA of FIG. 7(e).

In the case of this modification, the sheet 10 has a plurality of types of protrusions 12 different in shape from each other.

Moreover, in the case of this modification, the sheet|seat 10 has the several types of projection part 12 mutually different in dimension.

More specifically, in the case of this modification, one protrusion 12 (hereinafter, the first protrusion 12a) is disposed in the center of the sheet 10, and a plurality (eg, the first protrusion 12a) is disposed around the first protrusion 12a. For example, eight) projections 12 (hereinafter, second projections 12b) are arranged side by side on the circumference at equal intervals.

Moreover, the diameter of the 1st projection part 12a is larger than the diameter of the 2nd projection part 12b. In other words, the dimension of the first protrusion 12a and the dimension of the second protrusion 12b are different from each other, and for example, when viewed in the perpendicular direction of the sheet 10 , the outer dimension of the first protrusion 12a is the first. 2 It is larger than the outer dimension of the protrusion 12b.

In addition, the height dimension of the 1st protrusion part 12a is the same as the height dimension of the 2nd protrusion part 12b, for example. For this reason, the inclination angle of the 1st projection part 12a is gentler than the inclination angle of the 2nd projection part 12b. In other words, the shapes of the first protrusion 12a and the second protrusion 12b are different from each other.

In addition, in the case of this modification, the planar shape of the sheet|seat 10 and the body part 50 becomes circular, for example.

However, the height dimension of the first protrusion 12a may be larger than the height dimension of the second protrusion 12b. In this way, the skin of the living body can be more fully pressed by the central first protrusion 12a.

Moreover, the height dimension of the 2nd protrusion part 12b may be larger than the height dimension of the 1st protrusion part 12a, and by doing in this way, the skin of a living body can be pressed more fully by the 2nd protrusion part 12b around.

<Modification 4>

7(g) and 7(h) are views for explaining a fourth modified example of the planar shape of the sheet 10 and the arrangement of the protrusions 12, of which FIG. 7(g) is a plan view, FIG. 7 (h) is a cross-sectional view taken along line AA of FIG. 7(g).

In the case of this modification, a plurality (for example, nine) of the protrusions 12 are arranged in a square lattice shape. Moreover, the planar shape of the sheet|seat 10 and the body part 50 is a square shape with rounded corners.

<Modification 5>

7 (i) and 7 (j) are views for explaining the planar shape of the sheet 10, the arrangement of the protrusions 12, and the modified example 5 of the shape of the protrusions 12, of which Fig. 7 ( i) is a plan view, and FIG. 7(j) is a cross-sectional view taken along line AA of FIG. 7(i).

In the case of this modification, the sheet 10 has a plurality of types of protrusions 12 different in shape from each other.

Moreover, in the case of this modification, the sheet|seat 10 has the several types of projection part 12 mutually different in dimension.

More specifically, in the case of this modification, the planar shapes of the sheet 10 and the body portion 50 are, for example, the same as in Modifications 1 and 2, for example. Then, at the center of the sheet 10, one transversely elongated, elliptical protrusion 12 (hereinafter, the first protrusion 12a) is disposed, and a plurality of (for example, the first protrusion 12a) is disposed around the first protrusion 12a. Eight) projections 12 (hereinafter, second projections 12b) are arranged.

The top of the first projection 12a has a horizontally long ridge line (see Fig. 7(j)).

The arrangement area of the first protrusion 12a in the sheet 10 of the present modification corresponds to the arrangement area of the two protrusions 12 at the center in the sheets 10 of Modifications 1 and 2. In other words, the dimension of the first protrusion 12a and the dimension of the second protrusion 12b are different from each other, and for example, when viewed in the perpendicular direction of the sheet 10 , the outer dimension of the first protrusion 12a is the first. 2 It is larger than the outer dimension of the protrusion 12b.

The planar shape of the 1st projection part 12a is an oval shape, for example. On the other hand, the planar shape of the 2nd protrusion part 12b is circular, for example. In other words, the first projection 12a and the second projection 12b are different in shape from each other.

<Modification 6>

FIG. 7(k) is a diagram for explaining a sixth modification of the planar shape of the sheet 10 and the arrangement of the protrusions 12 . In the case of this modification, a plurality (for example, four) of the projections 12 are arranged side by side in a straight line.

[Second Embodiment]

Next, the second embodiment will be described with reference to Figs. 8 to 9(b).

The heating implement 100 according to the present embodiment is different from the heating implement 100 according to the first embodiment in the configuration of the sheet 10, and in other respects, the heating implement 100 according to the first embodiment ( 100) is configured in the same way.

In said 1st Embodiment, the example in which the sheet|seat 10 was comprised by the nonwoven fabric sheet 15 of 1 sheet was demonstrated.

On the other hand, in this embodiment, the sheet|seat 10 is the nonwoven fabric sheet 15 (1st nonwoven fabric sheet) which comprises one outermost layer in the said sheet|seat 10, and the said sheet|seat 10. a nonwoven fabric sheet 17 (second nonwoven fabric sheet) constituting the other outermost layer of the , and a ventilation sheet 16 constituting an intermediate layer positioned between the first nonwoven fabric sheet and the second nonwoven fabric sheet.

More specifically, in the case of this embodiment, the sheet 10 has a three-layer structure of a nonwoven fabric sheet 15, a breathable sheet 16, and a nonwoven fabric sheet 17, as shown in FIG. 8, for example. has been

However, this invention is not limited to this example, The sheet|seat 10 may be comprised including the other layer of 3 layers of the nonwoven fabric sheet 15, the air permeable sheet 16, and the nonwoven fabric sheet 17. As an example, the sheet 10 includes two layers of air-permeable sheets 16 between the non-woven fabric sheet 15 and the non-woven fabric sheet 17, and is formed between the two-layer air-permeable sheets 16 comrades. 3 nonwoven fabric sheets are provided, and it may be set as the layer structure of 5 layers in total.

As described in the first embodiment, the nonwoven fabric sheet 15 includes fibers made of a first resin material and a binder made of a second resin material that binds the fibers together. have. Moreover, the nonwoven fabric sheet 17 is also comprised, similarly to the nonwoven fabric sheet 15, including the fiber comprised by the 1st resin material, and the binding part comprised by the 2nd resin material and binding the fibers together. have.

That is, each of the 1st nonwoven fabric sheet and the 2nd nonwoven fabric sheet is comprised including the fiber comprised with the 1st resin material, and the binding part comprised with the 2nd resin material and binding the fibers together.

However, the 1st resin material which comprises the nonwoven fabric sheet 15, and the 1st resin material which comprises the nonwoven fabric sheet 17 may be mutually the same material, and mutually different materials may be sufficient as them.

Moreover, the 2nd resin material which comprises the nonwoven fabric sheet 15, and the 2nd resin material which comprises the nonwoven fabric sheet 17 may be mutually the same material, and mutually different materials may be sufficient as them.

In the case of this embodiment, for example, the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17 are mutually comprised by the same material, The 1st resin material which comprises the nonwoven fabric sheet 15, and the nonwoven fabric sheet 17 While the 1st resin material which comprises is mutually the same material, the 2nd resin material which comprises the nonwoven fabric sheet 15, and the 2nd resin material which comprises the nonwoven fabric sheet 17 are mutually the same material.

Moreover, about the basis weight of the nonwoven fabric sheet 17, similarly to the basis weight of the nonwoven fabric sheet 15, it can set suitably.

In addition, also in the case of this embodiment, the fiber which comprises the nonwoven fabric sheet 15 may become the core-sheath structure containing the core comprised with the 1st resin material, and the sheath comprised with the 2nd resin material.

Moreover, also about the fiber which comprises the nonwoven fabric sheet 17, similarly, you may become the core-sheath structure containing the core comprised by the 1st resin material, and the sheath comprised by the 2nd resin material.

The air permeability of the nonwoven fabric sheet 17 is the same as the air permeability of the nonwoven fabric sheet 15, Preferably it is 1 second/100ml or more, More preferably, it is 3 seconds/100ml or more. Moreover, Preferably it is 20000 sec/100 ml or less, More preferably, it is 10000 sec/100 ml or less.

The air-permeable sheet 16 is constituted by including a third resin material having a higher melting point than the second resin material.

The air permeability of the air permeable sheet 16 is not particularly limited, and for example, the air permeability of the air permeable sheet 16 is 100 g/(m 2 ·24h) or more and 13000 g/(m 2 ·24h) or less, particularly 200 g/( m2·24h) or more and 8000 g/(m2·24h) or less. Since the moisture permeability of the ventilation sheet 16 is set in such a range, when the heating implement 100 is taken out from the packaging material, oxygen is quickly supplied to the heating material 30 through the sheet 10, and the heating material ( 30), heat and water vapor can be generated rapidly, and the duration of heat generation can be sufficiently long. The moisture permeability of the air permeable sheet 16 can be measured, for example, by the JIS (Z0208) CaCl ₂ method, and the measurement conditions can be 40°C and 90%RHM.

The air permeable sheet 16 may have air permeability over its entire surface, or may have air permeability partially.

The air-permeable sheet 16 preferably has a basis weight of 10 g/m 2 or more and 200 g/m 2 or less, particularly 20 g/m 2 or more and 100 g/m 2 or less. When the basis weight of the ventilation sheet 16 is set in such a range, heat and water vapor can be rapidly generated when the heating implement 100 is taken out from the packaging material, and the duration of heat generation can be sufficiently long.

As the ventilation sheet 16, a sheet in which ventilation holes are mechanically formed in a sheet made of a polyolefin such as polyethylene or polypropylene, or a resin such as polyester, polyamide, polyurethane, polystyrene, or polyethylene-vinyl acetate copolymer; A mixed sheet of a resin and an inorganic filler is interfacially peeled by stretching to form fine vents, and fine vents are formed using interfacial exfoliation of the crystal structure, and open cells by foam molding are used. and those in which fine ventilation holes are made to communicate with each other. Examples of the air-permeable sheet 16 include synthetic pulp such as polyolefin, wood pulp, rayon, and semi-synthetic fibers such as acetate, nonwoven fabric, woven fabric, synthetic paper, paper, and the like formed of vinylon fibers and polyester fibers. The ventilation sheet 16 may be used by stacking a plurality of sheets.

More specifically, as the air-permeable sheet 16, a mixed sheet of polypropylene and calcium carbonate is interfacially peeled by stretching to form fine ventilation holes in the mixed sheet can be preferably used.

In this embodiment, it is assumed that the air permeable sheet 16 is comprised by extending|stretching the mixed sheet|seat of polypropylene and calcium carbonate, and the following description is given.

Next, the manufacturing method of the heating implement which concerns on this embodiment is demonstrated.

The manufacturing method of the heating implement which concerns on this embodiment is also a nonwoven fabric sheet containing the fiber comprised by the 1st resin material, and the 2nd resin material with a lower melting point than the 1st resin material (for example, Fig.9(a)) The process of preparing the nonwoven fabric sheets 18 and 19 shown in), and the sheet|seat containing a nonwoven fabric sheet (for example, the nonwoven fabric sheet 18, the air permeable sheet 16, and the nonwoven fabric sheet 19 shown in Fig.9(a)) ) preparing the laminate), and hot-pressing this sheet at a temperature intermediate between the melting point of the first resin material and the melting point of the second resin material to form the convex projections 12 on one surface side of the sheet. and a step of disposing the heat generating material 30 on the other side of the sheet.

First, the nonwoven fabric sheet 18 used as the base of the nonwoven fabric sheet 15, the air permeable sheet 16, and the nonwoven fabric sheet 19 used as the base of the nonwoven fabric sheet 17 are prepared, and the nonwoven fabric sheet 18, ventilation These three sheets are laminated so as to overlap in order of the sheet 16 and the nonwoven fabric sheet 19 .

As mentioned above, the nonwoven fabric sheet 18 is comprised including the 1st fiber comprised with the 1st resin material, and the 2nd fiber comprised with the 2nd resin material, for example. However, the fiber which comprises the nonwoven fabric sheet 18 may become the core-sheath structure containing the core comprised by the 1st resin material, and the sheath comprised by the 2nd resin material.

The nonwoven fabric sheet 19 is also the same as the nonwoven fabric sheet 18, for example.

Next, the laminate of these three sheets (the nonwoven fabric sheet 18, the air-permeable sheet 16, and the nonwoven fabric sheet 19) is subjected to hot pressing to form the sheet 10 having the projections 12 formed thereon. (See Fig. 9(a), Fig. 9(b)).

Also in this embodiment, the temperature of hot press is set to the intermediate|middle temperature of melting|fusing point of 1st resin material, and melting|fusing point of 2nd resin material. That is, the temperature of the hot press is a temperature lower than the melting point of the first resin material and a temperature equal to or higher than the melting point of the second resin material.

Thereby, the second resin material is melted while the first resin material is not melted, so that, through the molten second resin material, the fiber constituted by the first resin material (the fiber has a core-sheath structure). It may be a part of the deliberation). That is, the molten second resin material constitutes a binding portion that binds the fibers made of the first resin material to each other.

Therefore, while ensuring the air permeability of the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17, since the rigidity of the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17 can be sufficiently ensured, the breathability and rigidity of the sheet 10 are sufficiently ensured. can do. That is, the air permeability and rigidity of the base 11 can be sufficiently secured, and also with respect to the protrusion 12, from the base end to the distal end of the protrusion 12, while ensuring the air permeability, the whole can be made sufficiently rigid. have.

Also in the case of this embodiment, the temperature of the hot press is as low as possible within the range in which the second resin material can be sufficiently melted (for example, the temperature of the melting point of the second resin material + 30 ° C. or less, preferably is preferably set to the melting point of the second resin material + a temperature of 10°C or less). By doing in this way, the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17 after hot pressing can be made to have the texture of a nonwoven fabric. In particular, when the nonwoven fabric sheet 17 located on the outer surface side of the body part 50 has a texture of a nonwoven fabric, the feel of the body part 50 becomes favorable.

In the case of this embodiment, the temperature of the hot press is preferably set to a temperature lower than the melting point of the third resin material contained in the air-permeable sheet 16 , and set to a temperature lower than the stretching temperature of the air-permeable sheet 16 . Thereby, even after hot pressing, the ventilation holes of the ventilation sheet 16 can be maintained, and the ventilation properties of the ventilation sheet 16 can be ensured.

Thus, in the manufacturing method of the heating implement which concerns on this embodiment, a sheet|seat consists of the nonwoven fabric sheet 18 (1st nonwoven fabric sheet) which comprises one outermost layer in the said sheet|seat, and the other outermost layer in the said sheet|seat. a nonwoven fabric sheet 19 (second nonwoven fabric sheet) constituting the outer layer, and a ventilation sheet 16 constituting an intermediate layer positioned between the first nonwoven fabric sheet and the second nonwoven fabric sheet, and the air permeable sheet 16 ) includes a third resin material having a higher melting point than the second resin material.

Then, in the step of forming the convex projections 12 on one surface side of the sheet, the sheet is hot-pressed at a temperature intermediate between the melting point of the second resin material and the melting point of the third resin material.

As described above, in the present embodiment, in a state where the nonwoven fabric sheet 18 and the nonwoven fabric sheet 19 are respectively overlapped on both surfaces of the air-permeable sheet 16 constituted including the third resin material, these three-layered sheets (non-woven fabric sheets) 18), the air-permeable sheet 16 and the nonwoven fabric sheet 19) are hot-pressed to form the projection 12.

Thereby, at the time of hot pressing, both surfaces of the ventilation sheet 16 can be protected by the nonwoven fabric sheets 18 and 19, respectively. For this reason, even when the air-permeable sheet 16 included in the sheet 10 provided for hot press includes a third resin material having high crystallinity such as polypropylene, for example, the air-permeable sheet 16 is The protrusion 12 can be formed on the sheet 10 while suppressing the fracture. Accordingly, it is possible to make the sheet 10 have uniform air permeability over the entire surface.

Moreover, the sheet 10 after hot pressing has a laminated structure in which nonwoven fabric sheets 15 and 17 are respectively arranged on both surfaces of the air permeable sheet 16 . For this reason, the rigidity of the sheet|seat 10 can be ensured more easily, and especially rigidity can be ensured favorably also about the projection part 12. FIG.

Further, in the sheet 10 after hot pressing, the second resin material of the nonwoven fabric sheet 15 and the second resin material of the nonwoven fabric sheet 17 may be bound to the air permeable sheet 16, you don't have to

In the case of this embodiment, the 2nd resin material of the nonwoven fabric sheet 15 and the 2nd resin material of the nonwoven fabric sheet 17 are not bound to the air-permeable sheet 16, and, thereby, the air-permeable sheet 16 can maintain good breathability.

Since the manufacturing process after forming the projection part 12 in the sheet|seat 10 is the same as that of 1st Embodiment, description is abbreviate|omitted.

In this way, the heating implement 100 according to the present embodiment is manufactured.

According to 2nd Embodiment, the sheet|seat 10 has the nonwoven fabric sheet 15 (1st nonwoven fabric sheet) which comprises one outermost layer in the said sheet|seat 10, and the other in the said sheet|seat 10. It is comprised including the nonwoven fabric sheet 17 (2nd nonwoven fabric sheet) which comprises the outermost layer of , and the air permeable sheet 16 which comprises the intermediate|middle layer located between the 1st nonwoven fabric sheet and the 2nd nonwoven fabric sheet. Thereby, the rigidity of the sheet 10 can be more easily ensured, and especially rigidity can be ensured favorably also with respect to the projection part 12, and the skin of a living body can be pressed more fully by the projection part 12.

Moreover, the ventilation sheet 16 is comprised including the 3rd resin material, and since melting|fusing point of the 3rd resin material is higher than the melting|fusing point of the 2nd resin material which comprises the nonwoven fabric sheets 15 and 17, the ventilation sheet|seat The heating implement 100 having the structure in which the air permeability of (16) is maintained can be easily obtained.

Moreover, although the 2nd Embodiment mainly demonstrated the example in which what was comprised by extending|stretching a mixed sheet of polypropylene and calcium carbonate as the air-permeable sheet 16, this invention is not limited to this example. For example, the ventilation sheet 16 may be produced by forming a plurality of pores in a resin sheet made of the third resin material. That is, the air-permeable sheet 16 is, for example, a resin sheet made of the third resin material, and has a plurality of pores penetrating the front and back of the air-permeable sheet 16 .

In addition, before overlapping the nonwoven fabric sheet 18 and the nonwoven fabric sheet 19 on both surfaces of the air permeable sheet 16 at the time of the above-mentioned hot pressing, the nonwoven fabric is previously bonded to the air permeable sheet 16, and ventilation is carried out. It is also preferable to reinforce the sheet 16 .

[Third Embodiment]

Next, a third embodiment will be described with reference to FIG. 10 .

The heating implement 100 according to the present embodiment differs from the heating implement 100 according to the first or second embodiment in that the structure of the main body portion 50 is different from that of the heating implement 100 according to the first or second embodiment. It is comprised similarly to the heating implement 100 which concerns on embodiment or 2nd Embodiment.

As shown in Fig. 10, in the case of this embodiment, the main body portion 50 includes a main body sheet 120 formed in a sheet shape, and a heat generating element accommodated in an accommodating space 124 inside the main body sheet 120 ( 130 , and a sheet 10 affixed to one surface of the main body sheet 120 . The protrusion direction of the projection part 12 is the opposite side to the main body sheet|seat 120 side. Moreover, the heat generating element 130 is comprised including a heat generating material.

That is, the heating implement 100 includes a sheet-like body portion (main body sheet 120 ) having a heat generating material, and the sheet-like body portion is disposed on the other surface side of the sheet 10 .

The body sheet 120 includes a first sheet 121 positioned on the user's skin side when the body part 50 is mounted on the user, and the skin side of the user with the body part 50 mounted on the user. It is comprised with the 2nd sheet|seat 122 located on the opposite side to it. The first sheet 121 and the second sheet 122 overlap each other.

The first sheet 121 and the second sheet 122 are bonded to each other at, for example, an annular bonding portion 123 positioned at their periphery. The 1st sheet|seat 121 and the 2nd sheet|seat 122 may be joined by adhesion or adhesion|attachment, and may be joined by the heat seal.

The accommodation space 124 is a gap between the first sheet 121 and the second sheet 122 .

Each of the first sheet 121 and the second sheet 122 may be constituted by a single-layer sheet or may be a laminate of a plurality of sheets.

As a material of the sheet material (first sheet 121, second sheet 122) constituting the body sheet 120, for example, a nonwoven fabric, a woven fabric, other knitted fabrics, a resin film such as polyethylene or urethane; A porous body, a combination of 2 or more types thereof, etc. are mentioned.

In the case of the present embodiment, the base end portions 66 of the pair of attachment band portions 61 are being fixed to the outer surface of the second sheet 122 .

The heating element 130 is, for example, in the form of a first covering sheet 131 , a second covering sheet 132 , and a sheet held between the first covering sheet 131 and the second covering sheet 132 . A heat generating unit 133 is provided and configured. The first covering sheet 131 and the second covering sheet 132 overlap each other. Thereby, by the 1st covering sheet 131 and the 2nd covering sheet 132, the container which accommodates the heat generating part 133 inside is comprised.

The first covering sheet 131 and the second covering sheet 132 are bonded to each other in their peripheral portions, for example.

The 1st covering sheet 131 and the 2nd covering sheet 132 may be joined by adhesion or adhesion|attachment, and may be joined by heat sealing.

Among the first covering sheet 131 and the second covering sheet 132 , the first covering sheet 131 has the first sheet 121 side, that is, the user's skin side in the state in which the body part 50 is attached. The second covering sheet 132 is disposed on the side opposite to the user's skin side in the state where the body portion 50 is attached, that is, on the second sheet 122 side.

In addition, this invention is not limited to this example, The heat generating body 130 does not need to have the 1st covering sheet 131 and the 2nd covering sheet 132. In this case, the container which accommodates the heat generating part 133 inside is comprised by the 1st sheet|seat 121 and the 2nd sheet|seat 122, for example. Also in this case, the first sheet 121 has a function of the first covering sheet 131 (air permeability of the first covering sheet 131 , etc.), and the second sheet 122 is the second covering sheet 132 of the second covering sheet 132 . It has a function (air permeability of the 2nd covering sheet 132, etc.).

The heat generating part 133 is comprised including the said heat generating material 30.

At least a part of the outer surface of the heat generating element 130 is joined to the inner surface of the main body sheet 120 in the joint portion 134 .

Although the form of the heat generating part 133 is not specifically limited, For example, 3 types of a coating type, a powder type, and a papermaking (papermaking) type are mentioned.

Among these, the coating-type heat generating part 133 is constructed by coating a crepe paper or a laminated body of paper with a coatingable heat generating composition (a heat generating composition containing iron powder, activated carbon, water, etc.) and laminating a polymer sheet thereon. has been Instead of the polymer sheet, an absorbent layer such as an absorbent polymer, paper, or rayon nonwoven fabric may be used.

The powder-type heat generating part 133 presses and hardens powder mixed with iron, activated carbon, water, SAP (Super Absorbent Polymer), inorganic powder, etc. into a sheet form, and this is formed into a first covering sheet 131 and a second covering sheet. It is constituted by enclosing between (132).

The paper-making type heat generating part 133 is constructed by incorporating saline solution into a heat generating material comprising iron powder, activated carbon and pulp, and encapsulating it between the first covering sheet 131 and the second covering sheet 132, have.

Here, at least one of the first covering sheet 131 and the second covering sheet 132 is made of a material having air permeability. In the case of the present embodiment, the first covering sheet 131 has higher air permeability as compared with the second covering sheet 132 . In addition, the 2nd covering sheet 132 may have air permeability, and does not need to have air permeability substantially.

Moreover, the 1st covering sheet 131 is a moisture-permeable sheet|seat. On the other hand, the 2nd covering sheet 132 is a moisture-permeable sheet|seat or a moisture-impermeable sheet|seat. When the second covering sheet 132 is a moisture-permeable sheet, the air permeability of the second covering sheet 132 may be the same as the air permeability of the first covering sheet 131 or lower than the air permeability of the first covering sheet 131 . may be used, or may be higher than the air permeability of the first covering sheet 131 .

The air permeability of the first sheet 121 is preferably higher than that of the first covering sheet 131 , and the air permeability of the second sheet 122 is preferably higher than that of the second covering sheet 132 . When the second sheet 122 is non-air-permeable, the second covering sheet 132 may also be non-air-permeable, and the second covering sheet 132 may not be non-air-permeable.

Further, when the air permeability of the second covering sheet 132 is lower than the air permeability of the first covering sheet 131, the vapor is more easily released to the skin side.

Moreover, the 1st sheet|seat 121 is comprised with the material which has air permeability and moisture permeability. The second sheet 122 may or may not have air permeability substantially. Moreover, the 2nd sheet|seat 122 may have moisture permeability, and does not need to have moisture permeability substantially.

In the case of the present embodiment, the sheet 10 is affixed to the outer surface of the first sheet 121 .

Moreover, the heat generating material 30 is not filled in the cavity 13 of the projection part 12 of the sheet|seat 10, and the inside of the projection part 12 is hollow.

Also in the case of this embodiment, the sheet|seat 10 has air permeability. More specifically, the sheet 10 has air permeability even in the projection 12 . For this reason, oxygen can be supplied to the heat generating material 30 of the heat generating part 133 of the heat generating body 130 via the sheet|seat 10, the 1st sheet 121, and the 1st covering sheet 131.

When the heating implement 100 is taken out from the packaging material at the time of use, the heating material 30 of the heating part 133 of the heating element 130 comes into contact with oxygen in the air, and the heating part 133 generates heat and water vapor ( steam heating), and this water vapor is discharged to the outside through the first covering sheet 131 , the first sheet 121 and the sheet 10 .

For this reason, even in the structure in which the cavity 13 of the protrusion 12 is not filled with the heat generating material 30 as in the present embodiment, the heat of the heat generating element 130 is rapidly transferred to the skin of the living body by the latent heat of the water vapor. can

In particular, since the protrusion 12 also has air permeability, heat can be transferred to the skin by the water vapor emitted from the protrusion 12 , so the skin is pressed by the protrusion 12 while warming the skin with the protrusion 12 . can do.

[Fourth embodiment]

Next, a fourth embodiment will be described with reference to Figs. 11(a) to 12(b).

The heating implement 100 according to the present embodiment differs from the heating implement 100 according to the third embodiment in the following explanations, and in other respects, the heating implement 100 according to the third embodiment ( 100) is configured in the same way.

In the case of this embodiment, the heating implement 100 is provided with the attachment tool 114 (mounting part) (FIG. 11(b)) demonstrated below instead of the attachment part 60 mentioned above.

As shown in FIG.11(b), although what is integrally molded with the resin material which can elastically deform, for example, the mounting tool 114 is not limited to the structure integrally molded. The mounting tool 114 is provided with a pair of opposing parts 115 arranged to face each other, and a connecting part 116 which connects these opposing parts 115 to each other. Each of the pair of opposing portions 115 is formed in a plate shape. Moreover, the connection part 116 is also formed in plate shape, for example. For this reason, the mounting tool 114 is the shape which curved the elongate board in one direction in the U-shape as a whole.

The mounting tool 114 is elastically deformable in a direction in which the opposed spacing between the pair of opposing portions 115 is widened. In a state where the opposing interval of the pair of opposing portions 115 is widened, the fitting 114 elastically returns to its original shape (elastic restoration), so that the fitting 114 becomes the pair of opposing portions 115 . has an elastic force in the direction in which the opposed spacing of

A curved portion 117 is formed, for example, at the tip of each of the pair of opposing portions 115 . The curved part 117 at the front-end|tip of the one opposing part 115 is curved in the direction away from the other opposing part 115. Similarly, the curved part 117 of the other opposing part 115 is curved in the direction away from the one opposing part 115. As shown in FIG.

However, the mounting tool 114 does not need to be provided with the curved part 117.

For example, in a pair of opposing parts 115, the some rib 118 is formed in the mutually opposing surface. These plurality of ribs 118 extend parallel to each other, for example.

However, the mounting tool 114 does not need to be provided with the rib 118 .

In the case of this embodiment, the main-body part 50 is formed in one direction to be elongate, as shown to Fig.11 (a). For example, a plurality of projections 12 are arranged side by side in a line.

In the case of this embodiment, in the surface of the main body part 50 on the opposite side to the side on which the protrusion part 12 is formed, the adhesive layer 112 for affixing the said main body part 50 to the mounting tool 114. ) is formed (see Fig. 12(b)). In addition, in the state before use of the heating implement 100 , a release paper is affixed to the adhesive layer 112 .

When the heating implement 100 is used, the release paper is peeled off from the adhesive layer 112 , and the adhesive layer 112 is attached to the inner surface of the mounting tool 114 , so that the body part 50 is attached to the mounting tool 114 . do.

In this state, the projection 12 is preferably disposed at a position corresponding to the opposing portion 115, while not disposed at a position corresponding to the connecting portion 116 (see Fig. 12(b)).

In a state in which the body part 50 is attached to the mounting tool 114, the distance between the pair of opposing parts 115 is widened, and in this state, the opposite distance between the pair of opposing parts 115 is extended by the palm of the hand. (113) and the like are inserted, and the force for widening the opposed spacing between the pair of opposed portions 115 is released.

Thereby, since the fitting tool 114 elastically returns, for example, as shown in Figs. 12(a) and 12(b), the skin of the palm 113 between the thumb and forefinger is applied to the skin. It becomes possible to press-contact the projection part 12, and to press the menstrual blood etc. located in this part with the projection part 12.

As described above, in the case of the present embodiment, the mounting portion is a fitting tool 114 for pressing the protrusion 12 to the skin by sandwiching a part of the living body (such as the palm 113) through the protrusion 12 with an elastic restoring force. .

In addition, the fitting 114 may be provided separately from the heating implement 100 , and may be used in combination with the heating implement 100 . In this case, for example, the body part 50 itself becomes the heating implement 100 .

That is, the fitting tool 114 according to the present embodiment is a fitting tool 114 for attaching the heating device 100 having the protrusion 12 to the living body, and is an elastic restoring force for a part of the living body through the protrusion 12 . The projection 12 is press-contacted to the skin by being pinched by the .

According to the fitting tool 114 according to the present embodiment, the heating device 100 having the protrusion 12 can be attached to the living body, and the protrusion 12 can be fixed to the living body by the elastic restoring force of the fitting tool 114 . can be pressed against the skin of Therefore, it is possible to continuously press-contact the protrusion 12 to the skin by the fitting 114 having a simple configuration.

Moreover, this mounting tool is provided with a pair of opposing parts 115 which are arrange|positioned to face each other as mentioned above, and the coupling part 116 which connects these opposing parts 115 comrades with each other, A pair of opposing parts It is elastically deformable in the direction in which the space|interval opposite to (115) widens.

Here, since the fitting 114 is provided with a plurality of ribs 118, the body portion 50 can be more stably attached to the fitting 114, and the body portion ( 50) can be suppressed.

Moreover, since the fitting tool 114 is provided with the curved part 117, when trying to widen the distance between the pair of opposing parts 115 in order to separate the fitting tool 114 from the palm 113 or the like, a finger is hung on the curved portion 117 to easily widen the opposed spacing between the pair of opposed portions 115 .

In addition, in this embodiment, although the example in which the main body part 50 is pasted to the fitting 114 by the adhesive layer 112 was demonstrated, the fitting 114 and the fitting 114 simply by the elastic restoring force of the fitting 114 were demonstrated. The body portion 50 may be sandwiched between the skins.

[Fifth embodiment]

Next, a fifth embodiment will be described.

The heating implement 100 according to the present embodiment is different from the heating implement 100 according to each of the above-described embodiments in terms of being described below, and in other respects, the heating implement 100 according to the above-mentioned embodiments is different from the heating implement 100 according to each of the above-mentioned embodiments. are configured the same.

In the first embodiment, the nonwoven fabric sheet 15 is composed of fibers made of a first resin material and a second resin material having a lower melting point than the first resin material, and the fibers are bound together. An example composed of parts has been described.

Moreover, in the said 2nd Embodiment, each of the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17 is made of the fiber comprised with the 1st resin material, and the 2nd resin material of a lower melting point than the 1st resin material. The example in which it is comprised and is comprised including the binding part which bind|concludes the fibers is demonstrated.

On the other hand, in the case of this embodiment, the nonwoven fabric sheet 15 is comprised from the fiber of amorphous PET. Or at least one or both of the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17 are comprised from the fiber of amorphous PET.

Here, the fiber which comprises the nonwoven fabric sheet 15 may contain the fiber formed with materials other than amorphous PET. Similarly, the fibers constituting the nonwoven fabric sheet 17 may contain fibers formed of materials other than amorphous PET. Moreover, the fiber of amorphous PET may contain materials other than amorphous PET.

It is preferable that this amorphous PET has an endothermic peak accompanying a phase transition within the temperature range of 60 degreeC or more and 165 degrees C or less, and it is preferable that the temperature of this endothermic peak is lower than the softening point of this amorphous PET. However, the temperature of this endothermic peak may be the same as the softening point of amorphous PET.

In this endothermic peak, the endothermic amount (J/g) per unit weight of the sheet 10 is preferably 0.1 or more and 2.0 or less, more preferably 0.2 or more and 1.7 or less, and preferably 0.5 or more and 1.4 or less.

In the case of this embodiment, the said softening point of the nonwoven fabric sheet 15 is the softening point of amorphous PET.

More specifically, this amorphous PET has at least two endothermic peaks each accompanied by a phase transition, and the temperature of the first endothermic peak among them is a glass transition temperature (TG) in a temperature range of 60°C or more and 180°C or less. it's mine Moreover, the temperature of the 2nd endothermic peak of amorphous PET is higher than the 1st endothermic peak.

The method for manufacturing a heating implement according to the present embodiment is described above, except that the nonwoven fabric sheet 15 or at least one or both of the nonwoven fabric sheet 15 and the nonwoven fabric sheet 17 are constituted by fibers of amorphous PET. It is the same as the manufacturing method demonstrated in 1st Embodiment.

Also by this embodiment, the same effect as each said embodiment is acquired.

Moreover, according to the examination of this inventor, the sheet|seat 10 is comprised including the nonwoven fabric sheet 15 (or the nonwoven fabric sheet 17) comprised with the fiber of amorphous PET, and the projection part 12 is more desired. It becomes possible to precisely machine into the shape.

[Sixth embodiment]

Next, a sixth embodiment will be described with reference to Figs. 20(a) to 21(c).

The heating implement 100 according to the present embodiment differs from the heating implement 100 according to the fourth embodiment in the following description, and in other respects, the heating implement 100 according to the fourth embodiment ( 100) has the same configuration as

In the case of the present embodiment, the number of the protrusions 12 included in the body portion 50 is, for example, as shown in Fig. 20(a) or Fig. 20(b), two (Fig. 20(a)) or 1 (Fig. 20(b)). The body part 50 has a sheet-like part and the projection part 12 which protrudes in one side from this sheet-like part.

Although the planar shape of this sheet-like part is not specifically limited, For example, it is formed in the square shape (preferably square shape with rounded corners).

In the case of the present embodiment, among the pair of opposing parts 115 of the fitting 114 , one of the opposing parts 115 (hereinafter, the opposing part 115a ) has the main body part 50 insertable/removable holding. A groove 181 is formed.

The holding groove 181 connects, for example, a pair of side groove portions 181a arranged at both ends of the opposing portion 115a in the width direction, and a pair of side groove portions 181a comrades. It is configured to include a connecting groove portion 181b. The width direction of the opposing part 115a is the left-right direction in FIG.21(c), and it is the back direction and the front direction of the paper surface in FIG.21(b). Each of the pair of side groove portions 181a extends linearly from the connecting portion 116 side toward the tip side of the opposing portion 115 , for example. The connection groove part 181b is arrange|positioned between the edge parts on the side of the connection part 116 in a pair of side groove part 181a, and has mutually connected these edge parts. The connecting groove portion 181b extends in the width direction of the opposing portion 115a.

Each of the pair of side groove portions 181a is open toward each other. The connecting groove portion 181b is opened toward the tip side of the opposing portion 115a.

The opposing part 115a is the flat plate-shaped part 182, and the holding|maintenance claw part arrange|positioned on the side of the other opposing part 115 (henceforth opposing part 115b) with this plate-shaped part 182 as a reference|standard. (183) is provided.

The space (gap) between the holding|maintenance claw part 183 and the plate-shaped part 182 comprises the holding|maintenance groove|channel 181. As shown in FIG.

The holding claw part 183 connects a pair of side claw parts 183a arranged at both ends of the opposing part 115a in the width direction, respectively, and a pair of side claw parts 183a comrades. It is comprised including the connection claw part 183b. Each of the pair of side claw portions 183a extends linearly from a portion on the connecting portion 116 side of the opposed portion 115a toward the tip side of the opposed portion 115 , for example. The connecting claw part 183b is arrange|positioned between the ends on the side of the connecting part 116 in a pair of side claw part 183a, and has mutually connected these end parts.

In the cross section orthogonal to the tip end direction of the opposing part 115a, the shape of the side claw part 183a is L-shaped (refer FIG.21(c)).

In the cross section orthogonal to the width direction of the opposing part 115a, the shape of the connecting claw part 183b is L-shape (not shown).

The holding claw part 183 has a U-shaped notch-shaped part in the position opposing the other opposing part 115b.

The dimension of the holding groove 181 in the thickness direction of the plate-shaped part 182 is equal to the thickness dimension of the sheet-like part in the body part 50, or slightly larger than the thickness dimension of the said sheet-like part. It is set to

In the case of this embodiment, the main-body part 50 does not have the adhesive layer 112. As shown in FIG.

In the case of this embodiment, the main body part 50 can be attached to the opposing part 115a as demonstrated below.

First, the sheet-like part of the body part 50 is moved relatively with respect to the counter part 115a in the arrow A direction in FIG. 21(b) from the front-end|tip side of the opposing part 115a. Thereby, a pair of mutually opposing edge portions 53 (see FIGS. 20(a) and 20(b)) of the sheet-like portion are inserted into a pair of side groove portions 181a, respectively, and these edge portions 53 Insert the other edge portion connecting the ends of the connection groove portion (181b). At this time, a pair of edge part 53 slides with respect to a pair of side groove part 181a.

In this way, as shown in Figs. 21(a) to 21(c), the main body portion 50 can be attached to the opposing portion 115a. In this state, the projection 12 of the main body 50 protrudes toward the other opposing portion 115b side through the U-shaped cut-out of the holding claw portion 183 .

Moreover, by moving the main body part 50 attached to the opposing part 115a relative to the opposing part 115a in the arrow B direction in FIG. 21(b), the main body part 50 is moved to the opposing part ( 115a) can be withdrawn. Also at this time, a pair of edge part 53 slides with respect to a pair of side groove part 181a.

For example, in the other opposing part 115b, the protrusion part 185 which protrudes toward the opposing part 115a side is formed in the surface opposing the one opposing part 115a.

Moreover, in one opposing part 115a, the protrusion part 186 is formed in the surface 1151 on the opposite side to the other opposing part 115b side, for example.

However, this invention is not limited to this example, The protrusion part 185 does not need to be formed in the opposing part 115b. Moreover, the protrusion part 186 does not need to be formed in the opposing part 115a.

Here, an example has been described in which one opposing part 115a among the pair of opposing parts 115 has a structure for holding the main body part 50 (the holding groove 181 and the holding claw part 183 ). , both of the pair of opposing parts 115 may have the holding groove 181 and the holding claw part 183 .

Also in the case of this embodiment, similarly to the fourth embodiment, the mounting tool 114 may be provided separately from the heating implement 100 and used in combination with the heating implement 100, in this case, yes For example, the body part 50 itself becomes the heating implement 100 .

In this way, at least one of the pair of opposing portions 115 has a holding portion that holds the heating implement 100 (eg, constituted by the holding groove 181 and the holding claw portion 183 ).

Moreover, the holding|maintenance part hold|maintains a pair of mutually opposing edge part 53 of the sheet-like heating implement 100 detachably, respectively.

Moreover, the holding|maintenance part has a pair of groove parts (a pair of side groove parts 181a) which can be inserted/removed by sliding a pair of edge part 53 of the heating implement 100, respectively.

This invention is not limited to said each embodiment and each modified example, Insofar as the objective of this invention is achieved, aspects, such as various deformation|transformation and improvement, are also included.

For example, the heat generating material 30 may be comprised including a metal to be oxidized, a water retaining agent, water, and a water absorbing polymer.

When the heat generating material 30 is comprised including the water absorbent polymer, excess water in the heat generating material 30 can be absorbed by the water absorbent polymer. Therefore, when the heating implement 100 is taken out from the packaging material, the heating material 30 can generate heat quickly.

When the heat generating material 30 is comprised including the water absorbent polymer, the heating implement 100 does not need to be equipped with the above-mentioned absorbent sheet 40 (FIG. 3).

It is preferable that they are 1 mass % or more and 12 mass % or less, and, as for content of the water absorbing polymer in the heat generating material 30, it is more preferable that they are 2 mass % or more and 8 mass % or less. When the content of the water absorbent polymer in the heat generating material 30 is 1 mass% or more, the water absorbent polymer can sufficiently absorb. Moreover, when the content of the water-absorbing polymer in the heat generating material 30 is 12 mass% or less, the content of the oxidizable metal contributing to heat generation in the heat generating material 30 can be sufficiently secured.

Moreover, in the said embodiment, although the example in which the attachment part 60 is provided with a pair of adhesive attachment band parts 61 and is comprised was demonstrated, this invention is not limited to this example, For example, a sack etc. The body part 50 may be wound around a leg, an arm, etc. using a band-shaped body, and the protrusion part 12 may be press-contacted to skin.

Moreover, the form similar to the eye mask provided with a pair of ear-ear parts hooked on the user's ear may be sufficient as the wearing part 60. As shown in FIG. That is, the attachment part 60 may be provided with a pair of ear-ring parts instead of the pair of attachment band part 61. As shown in FIG.

The said embodiment includes the following technical ideas.

<1> a sheet having a convex protrusion on one surface side thereof;

and a heat generating material disposed on the other side of the sheet;

The sheet is configured to include a non-woven fabric sheet,

The nonwoven fabric sheet has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak is within a temperature range of 60°C or higher and 180°C or lower, and the second endothermic peak is higher than the first endothermic peak. The heating element present on the side.

<2> The said nonwoven fabric sheet is comprised including the fiber comprised by the 1st resin material, and the binding part which is comprised by the 2nd resin material of a lower melting point than the said 1st resin material and binds the said fibers together. The heating implement according to <1>, which is

The heating implement as described in <2> with more content of the said 1st resin material in the <3> said nonwoven fabric sheet than content of the said 2nd resin material in the said nonwoven fabric sheet.

<4> The said sheet|seat comprises the 1st said nonwoven fabric sheet which comprises one outermost layer in the said sheet|seat, the 2nd said nonwoven fabric sheet which comprises the other outermost layer in the said sheet, and the said 1st nonwoven fabric sheet and a ventilation sheet constituting an intermediate layer positioned between the second nonwoven sheet, and

The heating implement according to <2> or <3>, wherein the ventilation sheet includes a third resin material having a higher melting point than the second resin material.

<5> The heating implement according to <1>, wherein the nonwoven fabric sheet is composed of fibers of amorphous PET.

<6> The said heating implement is equipped with the sheet-like main body part which has the said heat generating material,

The heating implement according to any one of <1> to <5>, wherein the sheet-like body portion is disposed on the other surface side of the sheet.

<7> The heating implement according to any one of <1> to <6>, wherein the inside of the protrusion is hollow.

<8> The heating implement according to any one of <1> to <7>, wherein the sheet has air permeability.

<9> The heating implement according to <8>, wherein the protrusion has air permeability.

<10> The heating implement includes a sheet-like body portion having the heating material,

The sheet-like body portion is disposed on the other side of the sheet,

The inside of the protrusion is hollow,

The sheet has breathability,

The heating implement according to <1>, wherein the protrusion has air permeability.

<11> The heating implement includes a second sheet laminated on the other surface side with respect to the sheet,

The heating implement according to any one of <8> to <10>, wherein the air permeability of the sheet is higher than that of the second sheet.

<12> The heat generating material comprises a metal to be oxidized, a water retaining agent, and water,

The heating implement according to any one of <1> to <11>, wherein the heating implement includes an absorbent sheet laminated on the other side of the sheet.

<13> The heating implement according to any one of <1> to <12>, wherein the heat generating material contains a metal to be oxidized, a water retaining agent, water, and a water absorbent polymer.

<14> The heating implement according to any one of <1> to <13>, wherein the heating implement is provided with an attachment part for attaching the heating implement to a living body in a state in which the projection part is pressed against the skin.

<15> The heating implement according to <14>, wherein the attaching portion includes a pressure-sensitive adhesive sheet portion that is adhesively fixed to the skin.

<16> The heating implement according to <14> or <15>, wherein the attaching portion includes a stretchable elastic sheet portion.

<17> The heating implement according to <14>, wherein the attaching part is an appliance for pressing the protrusion to the skin by pinching a part of the living body with an elastic restoring force through the protrusion.

<18> The heating implement according to any one of <1> to <17>, wherein the heating material contains iron and carbon components.

<19> The heating implement according to <18>, wherein the iron is oxidizable iron.

<20> A step of preparing a nonwoven fabric sheet, wherein the nonwoven fabric sheet has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak is present in a temperature range of 60°C or more and 180°C or less, 2 endothermic peak is a step of preparing a nonwoven fabric sheet present on the higher temperature side than the first endothermic peak;

A step of preparing a sheet comprising the nonwoven fabric sheet;

forming a convex protrusion on one surface side of the sheet by hot-pressing the sheet at a temperature intermediate between the first endothermic peak and the second endothermic peak;

and disposing a heat generating material on the other side of the sheet.

<21> The said nonwoven fabric sheet is comprised including the fiber comprised with the 1st resin material, and the 2nd resin material of a lower melting point than the said 1st resin material,

In the step of forming the projection, the sheet is hot-pressed at a temperature intermediate between the melting point of the first resin material and the melting point of the second resin material to form a convex projection on one side of the sheet. A method for producing the described heating implement.

<22> Said sheet|seat comprises the 1st nonwoven fabric sheet which comprises one outermost layer in the said sheet|seat, the 2nd nonwoven fabric sheet which comprises the other outermost layer in the said sheet|seat, the said 1st nonwoven fabric sheet, and the said and a ventilation sheet constituting an intermediate layer positioned between the second nonwoven sheets,

The air-permeable sheet includes a third resin material having a higher melting point than the second resin material,

The method for producing a heating implement according to <21>, wherein in the step of forming the convex projections on one surface side of the sheet, the sheet is hot-pressed at a temperature intermediate between the melting point of the second resin material and the melting point of the third resin material. .

<23> The method for producing a heating implement according to <20>, wherein the nonwoven fabric sheet is composed of fibers of amorphous PET.

<24> a sheet having a convex protrusion on one surface side thereof;

and a heat generating material disposed on the other side of the sheet;

The sheet is configured to include a non-woven fabric sheet,

The said nonwoven fabric sheet is comprised by the fiber comprised by the 1st resin material, and it is comprised by the 2nd resin material of a lower melting point than the said 1st resin material, Comprising: The heat-heat which is comprised including the binding part which bind|concludes the said fiber with each other. phrase.

<25> A step of preparing a nonwoven fabric sheet comprising fibers made of a first resin material and a second resin material having a lower melting point than the first resin material;

A step of preparing a sheet comprising the nonwoven fabric sheet;

forming a convex projection on one surface side of the sheet by hot pressing the sheet at a temperature intermediate between the melting point of the first resin material and the melting point of the second resin material;

and disposing a heat generating material on the other side of the sheet.

In addition, the said embodiment includes the following technical ideas.

<26> A sheet having a convex projection on one surface side thereof; and a heat generating material disposed on the other surface side of the sheet, wherein the sheet includes a nonwoven fabric sheet, wherein the nonwoven fabric sheet has a phase change has at least two endothermic peaks accompanying The sheet includes fibers made of a first resin material, and a second resin material having a lower melting point than the first resin material, and includes a binding portion binding the fibers together, and the nonwoven fabric comprises: Content of the said 1st resin material in a sheet is more than content of the said 2nd resin material in the said nonwoven fabric sheet, The said heating implement is equipped with the sheet-like main body part which has the said heat generating material, The said sheet-like main body part , disposed on the other surface side of the sheet, the sheet has air permeability, the protrusion has air permeability, and the heating implement includes a second sheet laminated on the other surface side with respect to the sheet, , the air permeability of the sheet is higher than the air permeability of the second sheet, the heat generating material comprises a metal to be oxidized, a water retaining agent, and water, and the heating device is laminated on the other side of the sheet with respect to the sheet. A heating implement comprising: an absorbent sheet with an existing heating element, wherein the heating material contains iron and carbon components.

<27> The heating implement according to <26>, wherein the heating implement is provided with a mounting part for attaching the heating implement to a living body in a state in which the protruding part is in pressure contact with the skin.

<28> The heating implement according to <27>, wherein the attaching portion includes a pressure-sensitive adhesive sheet portion that is adhesively fixed to the skin and a stretchable elastic sheet portion.

<29> The heating implement according to <27>, wherein the attaching part is an appliance for pressing the protrusion to the skin by clamping a part of the living body with an elastic restoring force through the protrusion.

<30> A sheet having a convex projection on one side of the sheet and a heat generating material disposed on the other side of the sheet, wherein the sheet includes a non-woven fabric sheet, wherein the non-woven sheet has a phase change has at least two endothermic peaks accompanying The sheet is composed of fibers of amorphous PET, and the heating device includes a sheet-like body portion having the heat generating material, and the sheet-like body portion is disposed on the other side of the sheet, and the sheet is breathable. , wherein the protrusion has air permeability, and the heating implement includes a second sheet laminated on the other surface side with respect to the sheet, and the air permeability of the sheet is higher than the air permeability of the second sheet, The heat generating material comprises a metal to be oxidized, a water retaining agent, and water, and the heating implement includes an absorbent sheet laminated on the other side of the sheet with respect to the sheet, and the heat generating material contains iron and carbon components. containing heaters.

<31> The heating implement according to <30>, wherein the heating implement is provided with a mounting part for attaching the heating implement to a living body in a state in which the protruding part is in pressure contact with the skin.

<32> The heating implement according to <31>, wherein the attaching portion includes a pressure-sensitive adhesive sheet portion fixed to the skin and an elastic elastic sheet portion.

<33> The heating implement according to <31>, wherein the attaching part is an appliance for pressing the protrusion to the skin by clamping a part of the living body with an elastic restoring force through the protrusion.

<34> A sheet having a convex projection on one surface side thereof and a heat generating material disposed on the other surface side of the sheet, wherein the sheet includes a nonwoven fabric sheet, wherein the nonwoven fabric sheet has a phase change has at least two endothermic peaks accompanying The sheet includes fibers made of a first resin material, and a second resin material having a lower melting point than the first resin material, and includes a binding portion binding the fibers together, and the nonwoven fabric comprises: The first said nonwoven fabric sheet which content of the said 1st resin material in a sheet|seat is more than content of the said 2nd resin material in the said nonwoven fabric sheet, and the said sheet|seat comprises one outermost layer in the said sheet|seat. and a second nonwoven fabric sheet constituting the other outermost layer of the sheet, and a ventilation sheet constituting an intermediate layer positioned between the first nonwoven fabric sheet and the second nonwoven fabric sheet; The ventilation sheet includes a third resin material having a higher melting point than the second resin material, and the heating device includes a sheet-like body portion having the heat generating material, and the sheet-like body portion includes the other side of the sheet. is disposed on the face side of the protrusion, the inside of the protrusion is hollow, the sheet has air permeability, the protrusion has air permeability, and the heat generating material comprises a metal to be oxidized, a water retaining agent, water, and an absorbent polymer and, wherein the heating material contains iron and carbon components.

<35> The heating implement according to <34>, further comprising a mounting portion for attaching the heating implement to a living body in a state in which the protruding portion is in pressure contact with the skin.

<36> The heating implement according to <35>, wherein the attaching portion includes a pressure-sensitive adhesive sheet portion that is adhesively fixed to the skin and a stretchable elastic sheet portion.

<37> The heating implement according to <35>, wherein the attaching part is an appliance for pressing the protrusion to the skin by clamping a part of the living body with an elastic restoring force through the protrusion.

<38> The height dimension of the protrusion is preferably 2 mm or more and 15 mm or less, more preferably 3 mm or more and 10 mm or less, and still more preferably 5 mm or more and 8 mm or less <1> to <19>, <24 > or the heating implement according to any one of <26> to <37>.

<39> Any one of <1> to <19>, <24> or <26> to <38>, preferably 2 mm or more and 38 mm or less, and more preferably 5 mm or more and 20 mm or less The heating implement described in the paragraph.

In addition, the said embodiment includes the following technical ideas.

[1] A fitting device for attaching a heating device having a protrusion to a living body, comprising:

A fitting for press-contacting the protrusion to the skin by clamping a part of the living body through the protrusion by an elastic restoring force.

[2] The fitting includes a pair of opposing portions disposed to face each other, and a connecting portion connecting the opposing portions to each other, and is elastically deformable in a direction in which the opposed spacing of the pair of opposing portions is widened 1] described in the fittings.

[3] The fitting according to [2], wherein at least one of the pair of opposing portions has a holding portion for holding the heating implement.

[4] The fitting according to [3], wherein the holding portion detachably holds a pair of mutually opposed edge portions of the sheet-like heating implement.

[5] The fitting device according to [4], wherein the holding portion has a pair of groove portions that can be inserted and removed by sliding the pair of edge portions of the heating implement, respectively.

Example

Hereinafter, Examples will be described.

First, Embodiment 1 and Embodiment 2 will be described with reference to Figs. 13(a) to 14 .

In Example 1 and Example 2, the body part 50 (refer FIGS. 1-3) of the structure demonstrated in 1st Embodiment was used as the sample 155 (FIG. 13(a)), and the projection part 12 The temperature rising characteristics of the were investigated.

More specifically, in Example 1, the sheet 10 having the projections 12 has a structure having air permeability, whereas in Example 2, the sheet 10 having the projections 12 is non-breathable. structure was made.

The sheet 10 of Example 1 had an air permeability of 1 second/100 ml or more and 3 seconds/100 ml or less. In the sheet 10 of Example 2, the air permeability was ∞ of the upper limit of the measurement.

Here, as shown to Fig.13 (a), the 1st projection part 141, the 2nd projection part in the 3 projection part 12 arranged on the diagonal line among the 5 projection parts 12 which the main body part 50 has. (142), the third projection 143 is named.

13( b ) shows the top portion P1 of the first projection 141 , the top portion P2 of the second projection 142 , and the top portion P3 of the third projection 143 with respect to the first embodiment. ) is a graph showing the profile of each temperature increase characteristic.

13( c ) shows the top portion P1 of the first projection 141 , the top portion P2 of the second projection 142 , and the top portion P3 of the third projection 143 with respect to the second embodiment. ) is a graph showing the profile of each temperature increase characteristic.

In each of FIGS. 13(b) and 13(c), the horizontal axis represents time (minutes), and the vertical axis represents temperature (°C).

14 : is a schematic diagram which shows the structure of the measuring apparatus used for the measurement of Example 1 and Example 2. FIG. This measuring device is based on JIS S4100.

This measuring device includes a constant temperature water tank 151 , a plate material 152 disposed on the ceiling of the constant temperature water tank 151 , and a sample 155 disposed on the plate material 152 . A support material 153 , a temperature sensor 154 disposed on the support material 153 , a covering material 156 disposed over the sample 155 , and a weight disposed as a weight on the covering material 156 . (157) is provided.

The constant temperature water tank 151 is formed of SUS304, and the constant temperature water tank 151 is coat|covered with the heat insulating material 161 around it.

The constant temperature water tank 151 has an inlet 151a through which circulating water is introduced, and an outlet 151b through which circulating water is drawn out.

The plate material 152 is a plate made of polypropylene with a thickness of 7 mm.

The backing material 153 is a thing which laminated|stacked 2 sheets of type I gauze prescribed|regulated by the Japanese Pharmacopoeia.

The covering material 156 overlaps 8 sheets of 100-percent-cotton Tex count 5.905 twin-yarn flannel.

In addition, this measuring device supplies a circulation type constant temperature water tank 158 that circulates while maintaining the circulating water at a constant temperature, and supplies circulating water from the circulation type constant temperature water tank 158 to an inlet 151a of the constant temperature water tank 151 . It is provided with the supply piping 159 for this, and the return piping 160 for returning the circulating water from the outlet 151b of the constant temperature water tank 151 to the circulation type constant temperature water tank 158.

In addition, this measuring device includes a logger (not shown) that stores the detection result by the temperature sensor 154, and a personal computer (not shown) that acquires and collects the detection result from the logger and performs analysis, have.

As for measurement conditions, the ambient temperature was 20 °C ± 1 °C, the ambient humidity was 55% to 70%, and the wind speed was a no-wind state (0.5 m/sec or less).

The sample 155 is taken out from the packaging material, the sample 155 is placed on the support material 153 with the projection direction of the protrusion 12 facing down, and the covering material 156 is placed on the sample 155, Further, a weight 157 was placed on the covering material 156 .

The timing at which the sample 155 was taken out from the packaging material was taken as the measurement start time (the horizontal axis is 0 minutes) in FIGS. 13(b) and 13(c). Moreover, after taking out the sample 155 from the packaging material, it carried out quickly (within 30 seconds) until the weight 157 is arrange|positioned on the covering material 156.

From the comparison with FIG. 13(a) and FIG. 13(b), in Example 1, compared with Example 2, it turned out that the highest attained temperature of the projection part 12 is high. Moreover, in Example 1, compared with Example 2, it turned out that time until the projection part 12 reaches the maximum temperature is short.

On the other hand, in Example 2, compared with Example 1, it turned out that the time (duration time) for which the temperature of the projection part 12 is hold|maintained in the vicinity of the highest achieved temperature is long.

Next, Examples 3 and 4 will be described with reference to Figs.

In Examples 3 and 4, samples were taken from a sheet 10 having the structure of the fifth embodiment, that is, a sheet 10 comprising a non-woven fabric sheet composed of fibers of amorphous PET, and The endothermic peak was measured.

As the sheet 10, two types were prepared: one in which the molding temperature (the molding temperature of the protrusions 12) was 100°C (Example 3), and the other in which the molding temperature was 120°C (Example 4).

In addition, samples were taken from each of the three points of the sheet 10 of Examples 3 and 4. That is, as shown in FIG. 15 , for each of Examples 3 and 4, the top 171 of the projection 12 (corresponding to the “top of the projection” in the sample name shown in FIG. 16 ), the projection 12 ) of the side part 172 (corresponding to the "protrusion side part" of the sample name shown in FIG. 16), and the flat part 173 (shown in FIG. 16) which is a portion of the sheet 10 in which the protrusion 12 is not formed. Corresponding to the "flat part" of the sample name), samples were taken from three points.

Fig. 16 shows the name (sample name) of each sample, the molding temperature (°C), the weight (mg) of the sample, and the endothermic amount per unit weight (J/g) at the first endothermic peak.

Moreover, FIG. 17 shows the DSC chart of each sample.

In addition, "before shaping|molding" shown in FIG. 16 and FIG. 17 means the sheet|seat 10 before shaping|molding. The sheet 10 before molding was flat, and a part of the sheet 10 was taken as a sample.

The measurement result of the amount of heat absorption shown in FIG. 16 and the DSC chart shown in FIG. 17 are the results measured as follows.

As a measuring apparatus, Rigaku Corporation Thermo Plus EVO2 DSC8231 differential scanning calorimeter; DSC was used.

The measurement environment was made into nitrogen atmosphere.

As shown in Fig. 17, for each of Example 3 (molding at 100°C) and Example 4 (molding at 120°C), in any of the "protrusion top", "protrusion side part" and "flat part" , the first endothermic peak appeared around 70 °C. The temperature of this first endothermic peak is the glass transition temperature (TG) of amorphous PET.

In addition, for each of Examples 3 and 4, the second endothermic peak appeared at around 250°C in any of the "protrusion top part", "protrusion side part" and "flat part". The temperature of this second endothermic peak is the melting point of amorphous PET and is a temperature exceeding the softening point of amorphous PET.

In addition, as shown in Fig. 16, for each of Examples 3 and 4, in the "top of the protrusion", the endothermic amount per unit weight at the endothermic peak first appeared, "the side of the protrusion" and the "plane" small.

On the other hand, in "before molding", the first endothermic peak appeared around 80°C. The temperature of this first endothermic peak is the glass transition temperature (TG) of amorphous PET. Moreover, even before "molding", the 2nd endothermic peak appeared around 250 degreeC. The temperature of this second endothermic peak is the melting point of amorphous PET and is a temperature exceeding the softening point of amorphous PET.

In addition, in Example 3 and Example 4, compared with "before shaping|molding", the glass transition temperature is shifting to the low temperature side. The reason for this is not clear, but in Examples 3 and 4, the sheet 10 was subjected to a thermal history of cooling from the forming temperature to room temperature, and the change in the amorphous structure due to enthalpy relaxation occurred. I think to do it.

Next, Examples 5 to 8 will be described with reference to Figs. 18(a) to 19(d).

18(a) and 18(b) show the results of imaging the projection 12 fabricated in Example 5, of which FIG. 18(b) is an enlarged photograph of FIG. 18(a).

18(c) and 18(d) show the results of imaging the projection 12 fabricated in Example 6, of which FIG. 18(d) is an enlarged photograph of FIG. 18(c).

19(a) and 19(b) show the results of imaging the projection 12 fabricated in Example 7, of which FIG. 19(b) is an enlarged photograph of FIG. 19(a).

19(c) and 19(d) show the results of imaging the projection 12 fabricated in Example 8, of which FIG. 19(d) is an enlarged photograph of FIG. 19(c).

In Example 5 and Example 6, a common metal mold|die was used for shaping|molding the sheet|seat 10, and the shaping|molding temperature was made mutually equal.

In Example 7 and Example 8, a common metal mold|die was used for shaping|molding the sheet|seat 10, and the shaping|molding temperature was made mutually equal.

The molds used in Examples 5 and 6 and the molds used in Examples 7 and 8 differ in shape from each other.

In Examples 5 and 7, the material of the sheet 10 is the material described in the first embodiment. That is, the sheet 10 used in Examples 5 and 7 was composed of fibers made of a first resin material and a second resin material having a lower melting point than the first resin material, and the fibers were bound together. It is comprised including the nonwoven fabric sheet comprised including the binding part which is doing. More specifically, the first resin material is PET, and the second resin material is low melting point PET.

In Examples 6 and 8, the material of the sheet 10 is the material described in the fifth embodiment. That is, the sheet|seat 10 used in Example 6 and Example 8 was comprised including the nonwoven fabric sheet comprised from the fiber of amorphous PET.

From the comparison of Example 5 (FIG. 18(a) and FIG. 18(b)) and Example 6 (FIG. 18(c) and FIG. 18(d)), the sheet 10 was composed of fibers of amorphous PET, It turns out that the projection part 12 can be precisely processed into a more desired shape when it is comprised including the nonwoven fabric sheet.

Similarly, from the comparison of Example 7 (Fig. 19(a) and Fig. 19(b)) and Example 8 (Fig. 19(c) and Fig. 19(d)), the sheet 10 was made of amorphous PET. It turns out that when comprised including the nonwoven fabric sheet comprised from fibers, the protrusion part 12 can be precisely processed into a more desired shape.

This application claims priority on the basis of Japanese Patent Application No. 2017-84050 filed on April 20, 2017 and Japanese Patent Application No. 2018-60659 filed on March 27, 2018, all of the disclosures is accepted here.

10: sheet
10a: one side
10b: the other side
11: Donate
12: protrusion
12a: first protrusion
12b: second protrusion
13: joint
15: non-woven sheet
16: breathable seat
17: non-woven sheet
18, 19: non-woven sheet
20: second sheet
30: heating material
40: absorbent sheet
50: body part
51: junction
53: marginal part
60: mounting part
61: mounting band part
63: mounting part composition sheet
64: adhesive layer
65: release paper
66: proximal end
70: first mold
71: flat surface
72: protrusion
80: second mold
81: flat surface
82: concave
91: skin
100: heating bulb
112: adhesive layer
113: palm
114: mounting hole (mounting part)
115, 115a, 115b: opposing parts
116: connection part
117: curved part
118: rib
120: body sheet
121: first sheet
122: second sheet
123: junction
124: receiving space
130: heating element
131: first covering sheet
132: second covering sheet
133: heating part
134: junction
141: first protrusion
142: second protrusion
143: third protrusion
151: constant temperature water bath
151a: inlet
151b: exit
152: plate
153: support material
154: temperature sensor
155: sample
156: covering material
157: weight
158: circulating constant temperature water bath
159: supply piping
160: return pipe
161: insulation material
171: top
172: side part
173: flat part
181: retaining groove
181a: side groove
181b: connection groove
182: plate part
183: maintenance claw
183a: lateral claw
183b: connecting claw
185: protrusion
186: protrusion
P1, P2, P3 : Top

Claims (23)

A sheet having a convex projection on one surface side thereof;
and a heat generating material disposed on the other side of the sheet;
The sheet is configured to include a nonwoven fabric sheet,
The nonwoven fabric sheet has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak is within a temperature range of 60°C or higher and 180°C or lower, and the second endothermic peak is higher than the first endothermic peak. present on the side, the heater. The method of claim 1,
The said nonwoven fabric sheet is comprised by the fiber comprised by the 1st resin material, and the 2nd resin material of a lower melting point than the said 1st resin material, and the fiber comprised by the said 1st resin material bind|bonds Consisting of a binder with a heating element. The method of claim 2,
The heating implement in which content of the said 1st resin material in the said nonwoven fabric sheet is more than content of the said 2nd resin material in the said nonwoven fabric sheet. The method according to claim 2 or 3,
The said sheet|seat includes the 1st nonwoven fabric sheet which comprises one outermost layer in the said sheet|seat, the 2nd nonwoven fabric sheet which comprises the other outermost layer in the said sheet|seat, The said 1st nonwoven fabric sheet, and the said 2nd nonwoven fabric Consists of including a ventilation sheet constituting an intermediate layer positioned between the sheets,
and the ventilation sheet includes a third resin material having a higher melting point than the second resin material. The method of claim 1,
The said nonwoven fabric sheet is comprised from the fiber of amorphous PET, The heating implement. The method according to any one of claims 1 to 3,
The heating implement includes a sheet-like body portion having the heating material,
The sheet-like body portion is disposed on the other side of the sheet. The method according to any one of claims 1 to 3,
The inside of the protrusion is hollow, the heating device. The method according to any one of claims 1 to 3,
A heating implement, wherein the sheet has breathability. The method of claim 8,
A heating implement, wherein the protrusion has air permeability. The method of claim 1,
The heating implement includes a sheet-like body portion having the heating material,
The sheet-like body portion is disposed on the other side of the sheet,
The inside of the protrusion is hollow,
The sheet has breathability,
A heating implement, wherein the protrusion has air permeability. The method of claim 8,
The heating implement includes a second sheet laminated on the other side of the sheet,
The heating implement, wherein the air permeability of the sheet is higher than the air permeability of the second sheet. The method according to any one of claims 1 to 3,
The heat generating material is composed of a metal to be oxidized, a water retaining agent, and water,
The heating implement includes an absorbent sheet laminated on the other side of the sheet with respect to the sheet. The method according to any one of claims 1 to 3,
The heating implement, wherein the heat generating material includes a metal to be oxidized, a water retaining agent, water, and an absorptive polymer. The method according to any one of claims 1 to 3,
and a mounting portion for attaching the heating implement to a living body in a state in which the protrusion is in pressure contact with the skin. The method of claim 14,
The mounting portion includes a pressure-sensitive adhesive sheet portion fixed to the skin, the heating device. The method of claim 14,
The heating implement is configured such that the attaching portion includes a stretchable and stretchable sheet portion. The method of claim 14,
wherein the mounting portion is a fitting device for press-contacting the protrusion to the skin by pinching a part of the living body with an elastic restoring force through the protrusion. The method according to any one of claims 1 to 3,
The heating material is a heating implement containing iron and carbon components. The method of claim 18,
wherein the iron is oxidizable iron. A step of preparing a nonwoven fabric sheet, wherein the nonwoven fabric sheet has at least two endothermic peaks each accompanied by a phase transition, of which the first endothermic peak is within a temperature range of 60°C or higher and 180°C or lower, and the second endothermic peak is a step of preparing a nonwoven fabric sheet present at a higher temperature than the first endothermic peak;
A step of preparing a sheet comprising the nonwoven fabric sheet;
forming a convex projection on one surface side of the sheet by hot pressing the sheet at a temperature intermediate between the first endothermic peak and the second endothermic peak;
and a step of arranging a heat generating material on the other side of the sheet. The method of claim 20,
The said nonwoven fabric sheet is comprised including the fiber comprised by the 1st resin material, and the 2nd resin material of a lower melting point than the said 1st resin material,
In the step of forming the projection, the sheet is hot-pressed at a temperature intermediate between the melting point of the first resin material and the melting point of the second resin material to form a convex projection on one side of the sheet. Way. The method of claim 21,
The said sheet|seat includes the 1st nonwoven fabric sheet which comprises one outermost layer in the said sheet|seat, the 2nd nonwoven fabric sheet which comprises the other outermost layer in the said sheet|seat, The said 1st nonwoven fabric sheet, and the said 2nd nonwoven fabric Consists of including a ventilation sheet constituting an intermediate layer positioned between the sheets,
The air-permeable sheet includes a third resin material having a higher melting point than the second resin material,
In the step of forming the convex projections on one surface side of the sheet, the sheet is hot-pressed at a temperature intermediate between the melting point of the second resin material and the melting point of the third resin material. The method of claim 20,
The method for manufacturing a heating implement, wherein the nonwoven fabric sheet is composed of fibers of amorphous PET.

Images