JP2002200106A - Wet heat pad capable of preventing lowering of temperature - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wet heat pad hard to generate the lowering of temperature. SOLUTION: The wet heat pad comprises a hermetically sealed bag body in which steam absorbable particles 1 such as zeolite particles, silica gel particles or the like are housed. The undersurface of the hermetically sealed bag body is constituted of a steam permeable fabric 2 and the upper surface thereof is constituted of a steam impermeable material. Concretely, the steam impermeable material is constituted of a laminate of a steam permeable fabric 3 and a steam impermeable synthetic resin film 4. The wet heat pad is heated by an electronic oven and, by applying the undersurface of the heated wet heat pad to the shoulder or waist of a human body, the stiffness of the shoulders or lumbago can be relieved. At this time, since the upper surface of the wet heat pad is constituted of the steam impermeable material, heated steam is hard to pass through the upper surface of the wet heat pad to be prevented from evaporation. Therefore, the lowering of the temperature of the wet heat pad can be prevented during the use of the wet heat pad and the wet heat pad can be used over a long time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a moist heat pad used to relieve stiff neck and back pain and the like, in particular, temperature decrease is small during use, to a long usable moist heat pad.

[0002]

2. Description of the Related Art Conventionally, there has been known a wet heat pad formed of a sealed bag containing silica gel, wherein the entire sealed bag is formed of a water vapor permeable cloth (Japanese Patent Laid-Open No. 2000-2000). -13987). The method of using the wet heat pad is as follows. That is, the wet heat pad is heated in a microwave oven. Since the silica gel in the wet heat pad absorbs water vapor in the atmosphere, the water vapor in the silica gel is heated by heating in a microwave oven, and the temperature of the whole becomes high. Then, the moist heat pad, which has become hot, is used by contacting the shoulder, the waist and the like. With such a method of use, high-temperature steam (moist heat) acts on the shoulders, waist, etc., and is effective in alleviating stiff shoulders, lower back pain and the like.

When such a wet heat pad is heated in a microwave oven, its surface temperature becomes approximately 60 to 70 ° C. The usage time is about 30 to 60 minutes, and the surface temperature is 45 minutes.
° C or lower. When the temperature is 45 ° C. or lower, the action of moist heat is reduced, and the effect on stiff shoulders, lower back pain and the like is also reduced. Therefore,
The conventional moist heat pad has been used for about 1-2 hours.

[0004]

Therefore, the present inventor has proposed:
For the purpose of making this use time as long as possible, various studies were conducted. As a result, the conventional wet heat pad is considered to have a shorter use time because the heated steam evaporates from the entire surface of the pad. The inventor of the present invention believes that the use time may be lengthened if the heating steam is evaporated from the surface of the wet heat pad that contacts the human body, and the heating steam is not evaporated from the surface of the pad that does not contact the human body. Was. For this reason, the surface of the wet heat pad that does not come into contact with the human body was formed of a water vapor impermeable material and an experiment was conducted. As a result, it was found that the use time of the wet heat pad could be extended as expected. The present invention has been made based on such findings.

[0005]

That is, the present invention relates to a wet / heat pad for application to a human body, comprising a sealed bag containing water vapor absorbing particles such as zeolite and silica gel. A lower surface of the sealed bag is formed of a water vapor-impermeable material, and a lower surface of the sealed bag is a surface in contact with human skin. The present invention relates to a wet heat pad capable of preventing a drop.

As shown in FIG. 1, the wet heat pad according to the present invention is formed of a sealed bag having an arbitrary form. FIG. 1 is a plan view of a moist heat pad, which is formed of a U-shaped sealing bag. Such a wet heat pad is intended to be applied to a human body mainly on a shoulder, like a collar wrap. Further, the plane shape of the wet heat pad may be a substantially quadrilateral so that the pad can be easily applied to the waist, feet, and the like.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, and shows a state inside the sealed bag. Inside the sealed bag,
Water vapor absorbing particles 1 such as zeolite and silica gel are stored. Particles 1 such as zeolite absorb the water vapor in the atmosphere. Then, when the particles 1 that absorb water vapor and contain water are heated by a commercially available microwave oven, the water is heated, and the temperature of the particles 1 becomes approximately 100 ° C., and the heated water vapor gradually decreases. It evaporates. The size of the particles 1 may be arbitrary,
For example, about 1 to 20 mesh is preferable, and especially 3 to 1 mesh.
About 0 mesh is more preferable. The shape of the particles 1 is also arbitrary, but is generally spherical.

The lower surface of the sealed bag is made of a water vapor permeable fabric 2. As the water vapor permeable fabric 2, woven fabric,
Any fabric may be used as long as a knitted fabric, a nonwoven fabric, or the like is used, and the fabric is permeable to water vapor. Due to the presence of such a water vapor permeable fabric 2, the moisture in the particles 1 is 100 ° C
Even if heated, the surface temperature of the wet heat pad is 60-70 ° C
The temperature is suitable for the human body, and there is little risk of burns. Needless to say, the water vapor permeable fabric 2 must not allow the stored particles 1 to pass through. In the present invention, "sealing" of the sealed bag is referred to.
This means that the particles 1 are sealed so as not to fall off.

The upper surface of the sealed bag is made of a water vapor impermeable material. As shown in FIG. 2, the water vapor impermeable material is preferably a laminate of a water vapor impermeable fabric 3 and a water vapor impermeable synthetic resin film 4. At this time, it is preferable that the water vapor impermeable synthetic resin film 4 is disposed on the water vapor absorbing particles 1 side, and the water vapor permeable fabric 3 is disposed on the outer surface. That way, the lower surface and the upper surface are the same,
Because it is a fabric, the feel is good and the usability is excellent. The water vapor permeable fabric 3 and the water vapor impermeable synthetic resin film 4 may be bonded and integrated, or may be simply laminated and separable. As the water vapor permeable fabric 3, a woven fabric, a knitted fabric, a nonwoven fabric, or the like is used as in the case of the water vapor permeable fabric 2. As the film 4 made of a water vapor impermeable synthetic resin,
A polyethylene film, a polypropylene film, a polyester film, a polyamide film or the like may be used alone, or a laminate film in which different kinds of films are bonded may be used. As the other water vapor impermeable material, a material obtained by applying (coating) a resin solution to a water vapor permeable fabric such as a woven fabric, a knitted fabric, or a nonwoven fabric and closing the eyes of the water vapor permeable fabric may be used. Further, a film made of a water vapor impermeable synthetic resin film alone may be used.

The method of using the wet heat pad according to the present invention is as follows. First, the wet heat pad is heated in a microwave oven. Any microwave oven can be used as long as it is used in ordinary households. The water vapor-absorbing particles 1 stored in the wet heat pad absorb water vapor in the atmosphere before being put into a microwave oven. Heated. On the other hand, the surface temperature of the moist heat pad, since the water vapor permeable fabric 2 and water vapor impermeable material is present, on the order of about 60 to 70 ° C.. The heated wet heat pad is applied to a desired site such as a shoulder or a waist. At this time, the pad is applied such that the lower surface of the wet heat pad is a surface that comes into contact with a shoulder, a waist, or the like. And the surface temperature of the wet heat pad is 4
It can be used until the temperature drops to about 5 ° C or less.

The used wet heat pad is allowed to stand in the air, and after it reaches room temperature, it is allowed to stand for several hours or more. Then, the particles 1 in the wet heat pad again sufficiently absorb the water vapor in the atmosphere. After absorbing water vapor enough,
Again, when heated in the microwave,
The surface temperature of the wet heat pad is heated to about 60 to 70 ° C., and can be applied to a human body. That is, the wet heat pad according to the present invention can be used over and over again.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments, but the present invention is not limited to the embodiments.

EXAMPLE First, two rectangular polyester short fiber non-woven fabrics (having a basis weight of 150 g / m ² ) measuring 10 cm in length and 15 cm in width and a laminated film of the same shape (thickness: 40 μm; lamination of a polyethylene film and a nylon film) Film) was prepared. One laminated film was placed between two polyester short-fiber nonwoven fabrics, and three sides thereof were sewn with many different fabrics as shown in FIG. 2 to form a bag. Next, 150 g of spherical 3A zeolite having a particle size of 4 to 8 mesh is stored from the mouth of the bag between the polyester short fiber nonwoven fabric to be the lower surface and the laminate film, and then the mouth of the bag is sewn to form a sealed bag body. do it,
A wet heat pad was obtained. Therefore, this wet heat pad is made of a polyester short fiber nonwoven fabric whose lower surface is a water vapor permeable fabric. In addition, the upper surface is constituted by a water vapor impermeable material in which a polyester short fiber nonwoven fabric as a water vapor permeable fabric and a laminate film as a water vapor impermeable film are simply laminated.

Comparative Example A wet heat pad was obtained in the same manner as in the example except that the laminated film was not used.

Test Example The moist heat pads according to the example and the comparative example were placed in a 500 W household microwave oven and heated in the microwave oven for 2 minutes. And put the wet heat pad on the cushion, under the cushion,
A sheet heating element set at 50 ° C. was placed. The wet heat pad was placed such that the lower surface was on the cushion side. In this case, the surface of the cushion is maintained at about 30 to 40 ° C., and has a temperature similar to that of a human body. Then, a thermometer was inserted between the lower surface of the wet heat pad and the cushion, and the temperature change over time was measured. The results were as shown in Table 1.

[0016]

[Table 1]

As is clear from the results in Table 1, when the wet heat pad according to the embodiment is used, the temperature becomes 45 ° C. or less after 90 minutes. On the other hand, when the wet heat pad according to the comparative example is used, the temperature becomes 45 ° C. or less after 60 minutes. Therefore, the use time of the wet heat pad according to the example can be made about 50% or more longer than the wet heat pad according to the comparative example.

[0018]

As described above, after the wet heat pad according to the present invention is heated in the electric range, the upper surface is made of the water vapor impermeable material, so that the heated water in the water vapor absorbing particles is heated. However, it hardly evaporates after passing through the upper surface. Therefore, it is possible to prevent the temperature of the wet heat pad from lowering during use, and it is possible to use the pad for a long time.

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[Procedure amendment]

[Submission date] February 7, 2001 (2001.2.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Added

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a plan view of a wet heat pad according to an example of the present invention.
You.

FIG. 2 is a cross-sectional view of the wet heat pad of FIG. 1 taken along line AA.

[Explanation of symbols] 1 Water vapor absorbing particles 2 Water vapor permeable fabric 3 Water vapor permeable fabric 4 Water vapor impervious synthetic resin film

Claims (2)

[Claims] 1. A wet / heat pad for applying to a human body, comprising a sealed bag containing water-absorbing particles such as zeolite and silica gel. The lower surface of the sealed bag is made of a water vapor permeable fabric. A wet heat pad capable of preventing a temperature drop, wherein an upper surface of the sealed bag is made of a water vapor impermeable material, and a lower surface of the sealed bag is in contact with a human body. 2. The wet heat pad according to claim 1, wherein the water vapor impermeable material is a laminate of a water vapor impermeable fabric and a water vapor impermeable synthetic resin film.