JP3054666U - Bincho charcoal sheet - Google Patents

Abstract

(57) [Summary] [Problem] To provide a bincho charcoal sheet that can provide a comfortable living space by being used in combination with building materials and the like, and is extremely excellent in handleability. SOLUTION: On both sides of a conductive Bincho charcoal fine powder layer 2 which has a particle size of 50 mesh and contains 80g or more per square meter of Bincho charcoal fine powder, and has a basis weight of 10
g / m ² ~100g / m ² of a polyester fiber nonwoven fabric 3a, sheet material was formed in close contact laminating 3b.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a Bincho charcoal sheet containing fine powder of Bincho charcoal.

[0002]

[Prior art]

 Bincho charcoal releases negative ions that are considered to be good for health, and absorbs indoor moisture to lower the humidity when the indoor humidity rises above a certain value, and conversely when the indoor humidity falls below a certain value. It has a humidity control function that releases absorbed water to increase indoor humidity, and also has a carbon-specific deodorizing function. For this reason, Bincho charcoal is installed as it is indoors or under the floor, or it is used to create a comfortable living space by incorporating powdered material into building materials.

[0003] It has been considered to impregnate the sheet material with Bincho charcoal having such excellent properties and apply it to various uses. However, most of the conventional Bincho charcoal sheets are simply sprayed with fine Bincho charcoal powder on cardboard or paper, or immersed in cloth or non-woven fabric in a solution of Bincho charcoal and attached. .

[0004]

[Problems to be solved by the invention]

With such conventional Bincho charcoal sheets, the amount of Bincho charcoal fine powder per square meter (1 m ² ) is at most about 5 to 30 g, and the Bincho charcoal has sufficient moisture absorption, negative ion and deodorizing effects. In addition to being unable to do so, there is no conductivity (electric conductivity) at all. Furthermore, in the conventional Bincho charcoal sheet, the powder of Bincho charcoal was easily peeled off from the carrier such as corrugated cardboard, paper or cloth, making it difficult to handle.

[0005] The present invention has been made in view of the above problems, and its purpose is to provide an electrostatic removing effect in addition to the above-mentioned excellent effects of Bincho charcoal, and to remove fine powder of Bincho charcoal. An object of the present invention is to provide a bincho charcoal sheet which can be prevented, has good handleability, and is applicable to various uses.

[0006]

[Means for Solving the Problems]

In order to achieve the above object, the Bincho charcoal sheet according to the present invention has a particle size of 50 mesh and contains at least 80 g of Bincho charcoal fine powder per square meter. A nonwoven fabric made of synthetic fibers having a basis weight of 10 g / m ² to 100 g / m ² is integrally bonded to both sides with an adhesive.

[0007] Preferably, the nonwoven fabric is made of polyester fiber, and more preferably 0.5 to 5% of copper sulfide is added to the fine powder of Bincho charcoal.

[0008] The Bincho charcoal sheet not only has a significantly increased amount of Bincho charcoal than the conventional one, but also has a conductive layered layer having a certain thickness. In addition to the negative ion effect, humidity control effect, and deodorizing effect, it can have an effect of removing static electricity. When a certain amount of static electricity accumulates indoors, it is discharged through the human body, causing discomfort.By installing this Bincho charcoal sheet together with building materials, it is possible to prevent the accumulation of static electricity in addition to the above effects Becomes

In addition, when 0.5 to 5% of copper sulfide is added to the fine powder of Bincho charcoal, the antibacterial property and excellent conductivity of copper sulfide improve the antibacterial property and the static electricity removing effect. .

[0010]

[Embodiment of the invention]

 Hereinafter, a bincho charcoal sheet according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The illustrated bincho charcoal sheet 1 is composed of upper and lower fiber sheets 3a and 3b which are closely laminated with a central bincho charcoal fine powder layer 1 interposed therebetween.

The Bincho charcoal fine powder layer 1 is formed by forming a layer of Bincho charcoal fine powder of 80 g or more per unit square meter (m ² ), thereby having conductivity. The amount of the Bincho charcoal fine powder is preferably set to 150 g to 280 g per square meter in order to have stable conductivity, and when it becomes 280 g / m ² or more, the Bincho charcoal fine powder layer becomes thick, Not only does it lack flexibility when formed into a sheet, but it also increases costs in relation to the effects obtained thereby. The particle size of the bincho charcoal fine powder should be as fine as possible, pass through 50-200 mesh, and preferably pass through 150 mesh.

As the upper and lower fiber sheets 3a and 3b, non-woven fabrics made of synthetic fibers such as polypropylene, polyethylene, and polyester fibers are used, and preferably, non-woven fabrics made of polyester fibers are used. The fiber amount of this non-woven fabric is 10 g / m ² to 100 g / m ^2, and preferably a polyester non-woven fabric of 20 g / m ² is used. If the basis weight is less than 10 g / m ² , the porosity of the nonwoven fabric is increased, and the fine powder of Bincho charcoal easily passes from between the fiber sheets 3 a and 3 b. If the basis weight exceeds 100 g / m ² , the flexibility is increased. This is because it is lacking.

In order to manufacture the above Bincho charcoal sheet, a high concentration of Bincho charcoal fine powder is dispersed in an aqueous solution in which an acrylic emulsion (about 25%) is dissolved as a water-soluble binder. A solution is formed, and the gel-like Bincho charcoal solution is extruded from a nozzle having a predetermined width into a layer having a thickness of several tens of microns, and is applied on a fiber sheet 3b which continuously travels under the layer. The fiber sheet 3a may be laminated on the Bincho charcoal layer, and the three members may be passed between rollers so as to adhere to each other and then dried.

In the present invention, preferably, a fine powder of copper sulfide is added to the above-mentioned fine powder of Bincho charcoal in an amount of 0. By adding 5 to 5%, preferably 1%, the antibacterial property and the effect of removing static electricity can be improved.

[0016]

[Effects of the Invention] As described above, the Bincho charcoal sheet of the present invention not only has a large increase in the amount of Bincho charcoal compared to the conventional one, but also has a layered and conductive property. In addition to the excellent moisture absorption / desorption effects, negative ion effects, and deodorizing effects possessed by the product, it can also provide a static electricity removing effect, and can provide a comfortable living space when used in combination with building materials. The properties are extremely excellent.

In addition, when 0.5 to 5% of copper sulfide fine powder is added to bincho charcoal fine powder, the antibacterial property of copper sulfide and the excellent conductivity make it possible to improve the antibacterial property and the static electricity removing effect. Can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a bincho charcoal sheet according to the present invention.

[Explanation of symbols]

 1 Bincho charcoal sheet 2 Bincho charcoal fine powder layer 3a, 3b Fiber sheet

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI B32B 9/00 B32B 9/00 A 27/36 27/36 (72) Inventor Toshifumi Haruki 490 Chigasaki-cho, Tsuzuki-ku, Yokohama-shi, Kanagawa-ken No. 1 (72) Inventor Torao Hosaka 3-7-7 Ikegami, Ota-ku, Tokyo (72) Inventor Tsuyoshi Masuda 2-5-3, Minakugahara, Ota-ku, Tokyo

Claims (3)

[Utility model registration claims] 1. A unit weight of 10 g / m ^{2 to} 100 g on both sides of a Bincho charcoal fine powder layer having a particle size of 50 mesh and having conductivity by containing 80 g or more per square meter of Bincho charcoal fine powder. / Bin. A bincho charcoal sheet comprising a nonwoven fabric made of a synthetic fiber having a thickness of 1 m2 / m ² and integrally bonded with an adhesive. 2. The Bincho charcoal sheet according to claim 1, wherein the non-woven fabric is made of polyester fibers. 3. The Bincho charcoal sheet according to claim 1, wherein 0.5 to 5% of copper sulfide fine powder is added to said Bincho charcoal fine powder.