JPH1034778A - Translucent heat insulating material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high heat insulating property, and at the same time, provide a high translucence as well by a method wherein an air layer provided by a base fabric which is formed into a coarse solid structure using a fiber, preferably a fiber with a high translucence, is enclosed with a translucent film, preferably a translucent film with airtightness. SOLUTION: This translucent heat insulating material has a structure wherein on both surfaces being coarse of a base fabric (1a) which is formed into a solid structure, a synthetic resin film 2a with high tranclucence, is affixed. The base fabric (1a) has a structure wherein top and bottom ground weave 3a which are flat texture woven by making the density of, e.g. mock leno weave or leno weave coarser, are integrated by binding them by a binding weave 4a. The thickness is normally, e.g. approx. 3-10mm. Also, for the ground weave and the binding weave, if fire resistance is not required, a monofilament thread made of a synthetic resin with high rigidity, is used, and if fire resistance is required, a vinyl chloride coated glass fiber is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating property of a building having both light-transmitting properties and heat-insulating properties, for example, such as a membrane structure, which can take in light by utilizing the light-transmitting property of a membrane material used for the same. The present invention relates to a light-transmitting heat insulating material that is suitable for enhancing the daylighting property without impairing it.

[0002]

2. Description of the Related Art A membrane material used for a membrane structure is formed by coating a glass fiber cloth or a synthetic fiber cloth with an ethylene tetrafluoride resin or a vinyl chloride resin, and has a certain translucency. . This property of the film material having translucency is also effectively used for lighting in the film structure.
This is one of the features of the membrane structure.

[0003] On the other hand, the membrane material has a disadvantage in that it is very thin compared to general building materials and thus has poor heat insulating properties. Of course, this problem of heat insulation can be solved by applying a heat insulating material, but here, the relationship with the above-mentioned lighting becomes a problem. In other words, all conventional heat insulating materials have poor translucency,
If this is applied to the film material, it will impair the daylighting properties,
One of the features of the membrane structure as described above is lost.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has both translucency and heat insulation.
For example, it is an object of the present invention to provide a light-transmitting heat-insulating material that can sufficiently utilize the light-collecting properties of a film material when used for heat insulation in a film structure.

[0005]

According to the present invention, there is provided a light-transmitting heat insulating material which provides a light-transmitting air layer provided by a base fabric formed into an open three-dimensional structure using fibers, preferably high light-transmitting fibers. By confining with a film, more preferably an airtight translucent film, the structure is such that high heat insulation and high translucency can be obtained at the same time.

[0006] Such a translucent heat insulating material according to the present invention comprises:
It can be formed into a sheet of any size with a thickness of about several mm. Therefore, for example, by applying the film material along the film material used for the film structure, the heat insulation of the film structure can be realized without impairing the translucency of the film material. When the translucent heat insulating material according to the present invention is used for heat insulation of a film structure, the film material in the film structure can be used instead of the translucent film on one side. In other words, when used for heat insulation such as a film material, a structure in which a light-transmitting film is attached to only one side of the base cloth is used, and the remaining surface of the base cloth is attached to the film material or the like during use, so that air generated by the base cloth is applied. It is also possible to adopt a structure in which layers are confined.

With respect to the above-described light-transmitting heat insulating material, fire resistance can be enhanced by using glass fiber as the base fabric fiber and using a fluororesin film as the light-transmitting film. By doing so, for example, it is possible to realize fire prevention performance that meets the flame retardancy standard defined as a material for a membrane structure.

[0008]

Embodiments of the present invention will be described below. The translucent heat insulating material according to each of the first to third embodiments is shown in FIGS.
Respectively. As you can see in these figures,
Each of the light-transmitting heat insulating materials according to the embodiments has a structure in which synthetic resin films 2a, 2b, and 2c having high light-transmitting properties are bonded to both surfaces of the base fabrics 1a, 1b, and 1c formed in a coarse three-dimensional structure. Become.

Each of the base fabrics 1a, 1b, and 1c connects the upper and lower ground structures 3a, 3b, and 3c, which are flat structures woven with a reduced density by, for example, sashimi weaving or garment weaving.
b, 4c to form an integrated structure (see FIG. 4), and its thickness is usually about 3 to 10 mm. If the ground structure and the binding fabric do not require flame retardancy, use rigid synthetic resin monofilament yarn.If flame retardancy is required, use vinyl chloride coated. Use glass fiber. As these monofilament yarns or glass fibers, those having high translucency as much as possible, preferably transparent ones are used.

As the synthetic resin films 2a, 2b and 2c, if flame retardancy is not required, for example, a vinyl chloride resin film or a polyester resin film is used.
If flame retardancy is required, for example, a fluororesin film is used. In order to bond these films to the base fabric, they are bonded by heat using an adhesive or heat-bonded.

The translucent heat insulating material having the above structure is as follows.
Taking the case where the thickness is about 5 mm as an example, it has about 4 times the heat insulating property and about 2.5 times the light transmittance as compared with the heat insulating sheet used in the conventional membrane structure. Each of the translucent members has significantly superior performance.

[0012]

As described above, according to the present invention, it is possible to enhance the heat insulation without impairing the daylighting property, and it is possible to realize heat insulation without impairing the characteristics of the membrane structure and the like.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a light-transmitting heat insulating material according to a first embodiment of the present invention.

FIG. 2 is a partial perspective view of a light-transmitting heat insulating material according to a second embodiment of the present invention.

FIG. 3 is a partial perspective view of a translucent heat insulating material according to a third embodiment of the present invention.

FIG. 4 is a schematic partial enlarged cross-sectional view of the translucent heat insulating material of FIG. 1;

[Explanation of symbols]

 1a, 1b, 1c Base cloth 2a, 2b, 2c Translucent film

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Akira Toyonaga 2-6-8 Honcho, Chuo-ku, Osaka-shi, Osaka Inside the pyramid

Claims (2)

[Claims] 1. A light-transmitting heat insulating material in which a light-transmitting film is adhered to both sides or one side of a base fabric formed into an open three-dimensional structure using fibers. 2. The method according to claim 1, wherein glass fibers are used as the fibers, and a fluororesin film is used as the light-transmitting film.
3. The light-transmitting heat-insulating material according to item 1.