JP2003055622A - Fire resistant-sheet or tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fire resistant-sheet or tape which has fire resistance and can protect effectively as well as can be applied and disposed simply and effectively. SOLUTION: The fire resistant-sheet or tape has a natural fiber or synthetic fiber made-woven or knit fabric or a nonwoven fabric 2 provided with a fire- resistant coating 3 which can carbonize at high temperatures, thereby having heat resistance and fire resistance; the fire-resistant coating 3 may contain a foaming agent and may be provided on the one side surface with a surface layer material 4 such as aluminum or the like. The fire-resistant sheet being exposed to an intense heat, the above coating 3 can carbonize and foam and produce air bubbles and a porous, thick carbonized layer, then can become fireproof, consequently protect a wooden area 6, etc., of the building.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to improvements in fire resistant sheets or tapes.

[0002]

2. Description of the Related Art Conventionally, a glass fiber cloth is wound around the outer surface of a smoke exhaust duct to insulate it, but this glass fiber is apt to stick to the skin of an operator during construction, which is difficult to use. Even when it is discarded, it may be difficult to dispose since the glass fiber can be melted but not incinerated. In addition, in order to avoid the spread of fire and the burning of the building, there is a wall that is exposed from the fire prevention wall and is covered with glass fiber cloth laminated on one side of the aluminum foil to prevent fire. However, this is also difficult to use as described above.

[0003]

DISCLOSURE OF THE INVENTION The present invention is intended to obtain a fire-resistant sheet or tape which has heat resistance and fire resistance and which can be easily and effectively installed and disposed. .

[0004]

According to the present invention, a woven fabric, knitted fabric or non-woven fabric formed of natural or synthetic fibers is held with a fire resistant paint which carbonizes at high temperature, thereby imparting heat resistance and fire resistance. ing. Further, a metal foil, a cloth or other surface layer material is provided on one surface of the woven fabric, knitted fabric or non-woven fabric to improve heat resistance, fire resistance, or beautified so that it can be used in a wider variety of fields. To do. Then, a pressure-sensitive adhesive layer is formed on the other surface of the woven fabric, knitted fabric or non-woven fabric, and it can be used by easily pasting it on the product to be protected.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The above-mentioned woven, knitted or non-woven cloth 2 is made of natural fibers such as cotton or synthetic fibers such as rayon, polyester, nylon, etc.
A knitted fabric or a non-woven fabric can be used together with the above-mentioned various fibers. The cloth-like material 2 can have an appropriate thickness depending on the place of use, but it should be thick if high fire resistance is required, and thin if high fire resistance is not required. It is often good to do so.

The cloth-like material 2 is held by being coated with a fire-resistant paint 3 or being dipped in the paint to be impregnated. This paint carbonizes when exposed to high temperatures, which makes it effective in heat resistance and fire resistance.

If a foaming agent is added to the above fire-resistant paint to carbonize the paint at a high temperature and to foam it to make it porous, it expands to increase the thickness, further increasing flame resistance and fire resistance. be able to.

Such fire-resistant paints that foam to form porosity include those obtained by adding a carbonizing agent, a pigment, a foaming agent, etc. to an acrylic resin. For example, the following "Tikarit S-1" is used.
00 base coat "(manufactured by Nippon Paint Co., Ltd.). Acrylic resin 18% by weight Polyhydric alcohol type carbonizing agent 16% by weight Titanium oxide type pigment 12% by weight Ammonium polyphosphate type foaming agent 25% by weight Hydrocarbon type solvent 29% by weight

[0009] As such a fire-resistant paint, water-soluble paint is "HCA WL" (manufactured by: Flame Gua).
rd BV Nijmegen, sold by Giken System Co., Ltd.) can be used. The above fire resistant paint is
Both of them become porous at high temperature, but can be used as a coating which does not become porous except for the foaming agent.

When the fire-resistant sheet or tape 1 is used, for example, it is attached and fixed so as to cover the outer surface portion of the smoke exhaust duct. When a high temperature is applied to the smoke exhaust duct, the refractory paint 3 held on the cloth 2 is heated and carbonized, thereby preventing heat transfer and affecting the surroundings of the duct. Can be prevented.

In the case of a refractory paint that becomes porous, the paint held on the cloth is heated when high temperature is applied, and this foams and becomes porous, and the thickness of the layer increases. It is possible to prevent the carbonization from progressing to form a thick refractory layer and to affect the efficiency more efficiently.

When the fire-resistant sheet or tape 1 is reattached or replaced, old ones become waste, but since the above-mentioned natural fiber or synthetic fiber cloth is used instead of glass fiber, There is no sticking to the skin during work, and the removed one can be incinerated, so that its disposal is easy.

On one surface of the woven, knitted or non-woven cloth-like material 2, an aluminum, iron or other metal foil, cloth or other surface layer material 4 can be provided. This surface material 4 is
It may be provided so as to be integrated with the cloth-like material 2 by an appropriate method. For example, an adhesive may be used for adhesion, preferably a heat-resistant adhesive may be used for adhesion, or a synthetic resin may be used. It can be adhered and integrated depending on the laminate used.

When a metal foil is used as the surface layer material 4, the flameproofing and fireproofing properties are further improved.
Such a sheet or the like may be attached and fixed so that the surface layer material 4 is the outer surface and covers the exposed wooden portion 6 or metal portion of the building or the like (FIG. 3A). If there is a fire or the like in the next house, the sheet 1 or the like is heated by the heat, but first, the surface layer material 4 on the surface can fulfill the flameproof effect. When the heating is further continued, the paint 3 held on the cloth-like material 2 such as this sheet is heated and carbonized to protect the wood and metal parts of the building from a fire and prevent the spread of fire or fire. . If it becomes porous by heating,
The air bubbles 7 formed by the foaming of the sheet or the like become porous and swell to increase the thickness of the layer, so that the flameproofing and fireproofing functions are further enhanced (FIG. 3B).

If the surface layer material 4 is made of cloth, paper, plastic sheet, or has short fibers attached, the sheet or the like can be dressed up. It can be widely used for materials, inner wall materials, etc. Even if the surface material 4 burns or burns due to the fire or flame of a cigarette, the cloth-like material 2 holding this fire-resistant paint is difficult to burn, so it is possible to minimize and protect it. it can.

Carbon particles can be held on the cloth-like material together with the coating material. The charcoal particles can be mixed with the paint and held in the cloth as described above, or can be held in the cloth separately from the paint. By holding the charcoal particles, the fireproof performance can be improved, and normally, the charcoal particles can deodorize an unpleasant odor and control the humidity.

An adhesive layer 5 can be further provided on the other surface of the cloth-like material. Various kinds of pressure-sensitive adhesives can be used as the pressure-sensitive adhesive of the pressure-sensitive adhesive layer 5, but it is usually preferable to use a pressure-sensitive adhesive having high heat resistance, for example, a pressure-sensitive adhesive using synthetic rubber having high heat resistance. and so on. The surface of the pressure-sensitive adhesive layer 5 may be normally covered with release paper (not shown) for protection.

With such a pressure-sensitive adhesive layer 5, the pressure-sensitive adhesive layer 5 can be easily attached to a necessary portion such as the surface of the object to be protected, so that the usability is further improved. For example, by attaching it to the outside of the smoke exhaust duct, heat treatment of the duct can be easily performed.

The above fire-resistant sheet can be used as a sheet material for a tent to obtain a fire-resistant tent, and can be widely used as a material for interiors and exteriors of buildings, vehicles and the like, and for various other disaster prevention products. Can also be used effectively.

[0020]

INDUSTRIAL APPLICABILITY As described above, the present invention is excellent in heat resistance, and when heat is applied by fire or the like, the fire-resistant coating material held on the cloth-like material forms a carbonized layer. The fire resistance of the fire,
It is possible to effectively prevent burning. Further, since the cloth-like material holding the above-mentioned paint is a woven fabric, a knitted fabric or a non-woven fabric made of natural fibers or synthetic fibers, it is easy to handle and can be incinerated as it is and easily disposed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a usage state of what is shown in FIG.

FIG. 4 is an explanatory diagram showing a usage state of still another embodiment of the present invention.

[Explanation of symbols]

1 Fireproof sheet or tape 2 cloth 3 paint 4 Surface material 5 Adhesive layer 6 wooden parts 7 bubbles

Continued front page    F-term (reference) 4F100 AA37B AB01C AB33C BA02                       BA10A BA10B BA10C CC00B                       DG01A DG11C DG12A DG13A                       DG15A DJ01B GB07 JJ03                       JJ03B                 4J004 AA05 AB01 CA02 CA03 CA06                       CA08 CB01 CC03 EA06 FA07

Claims (5)

[Claims] 1. A fire-resistant sheet or tape comprising a woven fabric, a knitted fabric, or a non-woven fabric made of natural or synthetic fibers, which holds a fire-resistant paint which carbonizes at high temperature. 2. The refractory sheet or tape according to claim 1, wherein the refractory coating is carbonized and foamed at a high temperature to become porous. 3. The fire-resistant sheet or tape according to claim 1, wherein the woven fabric, knitted fabric or non-woven fabric further holds carbon particles. 4. The fire-resistant sheet or tape according to claim 1, wherein a metal foil, cloth or other surface layer material is provided on one surface of the woven fabric, knitted fabric or non-woven fabric. 5. The fire-resistant sheet or tape according to claim 1, wherein an adhesive layer is formed on the other surface of the woven fabric, knitted fabric or nonwoven fabric.