JPH077155Y2 - Thermal insulation composite sheet - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a heat insulating composite sheet, and more particularly to a heat insulating composite sheet suitable for treatment of stiff shoulders and back pain, wallpaper, packaging of food and electric machinery and appliances. It is a thing.

[Conventional technology]

Conventionally, as a water-absorbent sheet used for wallpaper, food, etc., a sheet obtained by sticking a liquid-absorbent sheet to an aluminum foil is used.
It is provided (see Japanese Utility Model Laid-Open No. 57-183147).

Further, there is also provided a water-absorbent laminate characterized in that a hydrophilic / water-permeable porous sheet and a synthetic resin foam sheet are laminated via an adhesive layer composed of a highly water-absorbent resin and an adhesive resin. (See Japanese Patent Publication No. 1-49112).

[Problems to be solved by the device]

Although the conventional products as described above are excellent in water absorption and water retention, they have a drawback that they require many special materials and are inferior in heat retention, so that their applications are limited.

The present invention eliminates the above-mentioned conventional drawbacks and has excellent hygroscopicity, and by utilizing aluminum's excellent heat retention, its application has a wide range of applications such as treatment for stiff shoulders and low back pain. A composite sheet for heat retention is provided.

[Means for Solving the Problems]

INDUSTRIAL APPLICABILITY The present invention is a composite sheet for heat insulation effective not only as a wallpaper and for packaging foods and electric machinery, but also for treating stiff shoulders, low back pain, etc., on one or both sides of an aluminum foil, A hygroscopic sheet is attached.

The aluminum foil is embossed,
Further, the hygroscopic sheet is characterized in that paper and non-woven fabric are laminated with a desiccant interposed therebetween.

[Function of device]

The aluminum foil in the heat insulating composite sheet according to the present invention is
High heat reflectance increases heat retention. Since this aluminum foil is embossed, the adhesion to the hygroscopic sheet is improved and the entire sheet becomes flexible.

Further, since the hygroscopic sheet attached to the aluminum foil is a laminate of paper and non-woven fabric in which a desiccant is interposed, it absorbs a large amount of water and also improves its absorbability.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a perspective view with a part removed. As shown in FIG. 1, the heat insulating composite sheet of the present invention has an adhesive (“adhesive”) on one surface, for example, the upper surface of the aluminum foil 1.
However, hereinafter, it will be simply referred to as “adhesive”) 2 and a hygroscopic sheet 3 is attached to the upper surface thereof. The entire sheet may be a long body wound in a roll shape, or may have another shape such as a square shape.

The aluminum foil 1 is preferably a soft one having a thickness of 10 to 60 μm, and is embossed 4, and
A large number of through holes 5 are formed. When the aluminum foil 1 is embossed 4, the heat retention is good, and the hygroscopic sheet 3 is better adhered to the aluminum foil 1,
Moreover, the entire heat retaining composite sheet becomes flexible. Further, the large number of through holes 5 also improve the air permeability.

The adhesive 2 can be appropriately selected depending on the hygroscopic sheet 3 to be attached. For example, there are starch, natural rubber and the like, but those which do not become strong after adhesion are preferable.

The hygroscopic sheet 3 is laminated between a paper 6 and a nonwoven fabric 7 with a powdery desiccant 8 interposed. In place of the non-woven fabric 7, a woven fabric made of a fiber made of a water-absorbent resin, a sheet of polyethylene, polypropylene resin or the like is formed by forming a large number of through holes in a special shape to provide a directional water permeability. It is also possible to use a porous sheet or the like. The hygroscopic sheet 3 may be attached to both sides of the aluminum foil 1. When the hygroscopic sheet 3 has the above-mentioned configuration, moisture,
Moisture is absorbed well, and for example, when the hygroscopic sheet side is used so as to contact the skin in a stiff shoulder, low back pain, or the like, or when it is used for wallpaper or packaging, it can be used in the same manner as above.

[Effect of device]

As described above, the heat-insulating composite sheet of the present invention has excellent heat-retaining power due to the aluminum foil, and therefore, not only provides heat-retaining treatment for stiff shoulders and low back pain, but also exerts excellent effects on chills, constipation, insomnia, etc. Since moisture is absorbed by the hygroscopic sheet, it can be used for a long time without any discomfort.

It can also be used for wallpaper, food packaging, etc., and has a wide range of uses.

In particular, aluminum foil is embossed and a hygroscopic sheet made by laminating paper and non-woven fabric with a desiccant is pasted on it, so the pasting process is easy and the entire sheet is flexible. Besides, the absorption of water becomes better.

[Brief description of drawings]

FIG. 1 is a perspective view with a part thereof peeled off. In the figure, 1 is an aluminum foil, 3 is a hygroscopic sheet, 4 is an emboss, 6 is paper, 7 is a non-woven fabric, and 8 is a desiccant.

Claims (1)

[Scope of utility model registration request] 1. A heat-insulating composite sheet, characterized in that a hygroscopic sheet formed by laminating paper and non-woven fabric via a desiccant is adhered to at least one surface of an embossed aluminum foil. .