JP4520501B2 - Method for producing functional charcoal board laminate - Google Patents

Description

  The present invention is a functional charcoal board laminate having a feature that the function of charcoal is not deteriorated while imparting an aesthetic effect by attaching a thin paper or chemical fiber nonwoven fabric printed on one side of the charcoal board using charcoal characteristics About.

  In general, charcoal has repair, ventilation, adsorption, and heat storage properties, so it absorbs bad odors and harmful gases, radiates far-infrared rays and anions as well as purifies air, prevents noise, prevents electromagnetic waves and harmful wavelengths. As a material that blocks blood circulation, metabolism, and physical and mental stability, in the city, several charcoal lumps are put in containers and used as they are next to computers and televisions, in chests, and in corners of living rooms. Because it is, it is not good aesthetically.

  The method of burying coal in the building is a method used in old tombs more than 2000 years ago to raise the potential to the living environment and release anions to prevent oxidation, air purification, gas adsorption, humidity adjustment, far infrared emission, etc. An optimal environment for the human body is created. Recently, in the case of the interior of a building, it is guided under a floor or a living room by putting it in a wall as a sheet with charcoal powder in a non-woven bag.

  Carbon plate manufacturing by carbonization, that is, wood ceramic method (Japanese Patent Laid-Open No. 4-164806) has been developed as a method for solving problems such as splitting and twisting that occur during charcoal carbonization. The process is complicated including four processes, and there is a drawback that a large amount of phenolic resin is consumed (60-100% of fiberboard).

  On the other hand, Korean Patent No. 10-0480539 filed and registered by the present applicant has developed a method for producing a clay-wood ceramic, which is a porous carbon material, and has reduced the number of steps to two.

  However, whether wood ceramics or clay wood ceramics must be carbonized into large-area boards if they are to be used for construction, long-term continuous large-area carbonization equipment requires a great deal of investment equipment and precision. The

  Therefore, charcoal produced by using an existing carbonization furnace or continuous carbonization furnace, carbide on chips, or particles of activated carbon that are commercially available are appropriately processed and used, and the effect of the Charcoal board, which is a porous carbon material manufactured with good forming and heat pressure, without any VOC problem due to formalin and volatile solvents, is sufficient to be able to be constructed as a building material. The present applicant has filed a porous carbon material functional board and charcoal board composite material production (KPA10-2005-0008255) as a human-friendly housing environment material having strength and surface properties.

  However, in this case, the surface decoration effect, various pores or a laminate for production, particularly a laminate excellent in adsorption of volatile organic substances and far infrared radiation has not been disclosed. In Japan and other developed countries, the revision of the Building Standards Law has been applied since July 2003 due to the problem of Sick House. The housing industry and the timber industry are quickly responding to the environment.

According to the Korean Environment Ministry, the indoor environmental pollution VOC concentration in 2000 is more than 3 months after the new construction with paper wallpaper (3833μg / m ² h), various paints, formalin adhesives used in the production of wood materials, etc. It was revealed that the indoor pollution of domestic buildings was 600ppb, which is 8 times the standard value.

  Therefore, products that use charcoal as a building material purify volatile organic compounds in this way, remove bad odors, and have repair, ventilation, adsorption, and heat storage properties, as well as air purification and far-infrared rays and anions. If the characteristics of charcoal that radiates and blocks noise, blocks electromagnetic waves and harmful wavelengths are expressed as they are, it becomes the best human-friendly material as a building material.

  However, in order to take advantage of the functionality of charcoal products as interior materials in domestic buildings, where concrete and cement are mainly used, the surface color of the charcoal board is black in addition to the functionality, so the degree of use as a residential environmental material is reduced, so the decorativeness is utilized A composite material is needed.

  The surface properties have been improved so that the thin wood veneer previously filed by the applicant can be stacked, or the perforated plywood can be combined and used as a building interior material, but this alone satisfies various consumer requirements. Because it is difficult, a new method is needed to make use of the functionality of the charcoal board while making use of the surface properties by layering printed pattern thin paper and chemical fiber nonwoven fabric.

Therefore, the object of the present invention is to make the appearance of the charcoal board beautiful so that it can be constructed as a building interior material while maintaining the charcoal properties and functions such as the charcoal board adsorption function. pattern a pattern by using an aqueous vinyl based adhesive printed thin and chemical textile nonwoven fabric or the like, functional charcoal board and decorative processability and workability of the physical properties of the charcoal board itself with convenience as it can maintain the It is providing the method of manufacturing a laminated body.

  In addition, the present invention produces a functional charcoal board laminate that can maintain the far-infrared emission and gas adsorption function by processing under specific conditions using a water-soluble adhesive that does not release harmful substances at the same time as the appearance is beautiful. Is to provide a way to do.

  In order to achieve the above-mentioned purpose, the present invention provides an appearance by adhering a patterned thin paper or a chemical fiber nonwoven fabric thinly printed on one side of a charcoal board under a specific condition using a water-soluble adhesive. At the same time as making it beautiful, a functional charcoal board laminate was produced that allowed the function of the charcoal board to remain intact.

The charcoal board used in the present invention is manufactured by the following method. That is, the charcoal board can be manufactured by two methods. First, mixed to the coal particles and coal particle size of the particles is 40 to 60 mesh, an adhesive obtained by mixing a polyvinyl acetate tape example Marujon and isocyanate Nate resin.

For example, the mixing adhesive comprises a 15 wt% polyvinyl acetate tape example Marujon, and 5 wt% isocyanate Nate resin. The charcoal board is manufactured by mixing an adhesive and charcoal particles while hot pressing. Preferably, the hot pressure condition is performed in three different steps. The three steps are primary pressurization, secondary pressurization under a pressure condition lower than the primary pressurization, and tertiary pressurization with a pressure higher than the secondary pressurization.

In the pressurizing condition of the present invention, pressurization is performed in the range of 5 to 40 kgf / cm ² in order to prevent destruction of the charcoal particle organization.

For example, 1 hot-pressing for 1 minute 30 kgf / cm ² TsugiKa圧, 2 TsugiKa圧hot-pressing at 1 minute 30 seconds 10 kgf / cm ^2, to produce a thermal pressure tertiary pressure at 6 minutes 30 kgf / cm ^2. The hot press temperature at this time is 150-200 degreeC. The isocyanate resin is not particularly limited as long as it is a generally used isocyanate resin.

In another method, the particle size is 7 to 12% by weight of charcoal particles having 6 to 12 mesh, 14 wt% of charcoal particles of 12 to 18 mesh, 43 wt% of charcoal particles of 18 to 40 mesh, and 40 to 60 mesh. charcoal particles 23% by weight, 60 to 100 carbon particles 9 wt% of a mesh, a carbon particle mixture containing 4 wt% or less of the carbon particles 100 mesh, polyvinyl acetate tape example Marujon 15 wt%, isocyanurate Nate resin 5 wt% Mix with adhesive containing. The mixture primary pressurized hot-pressing for 1 minute 30 kgf / cm ^2, 2 hot-pressing at 1 minute 30 seconds 10 kgf / cm ² TsugiKa圧is prepared in hot pressed tertiary pressure at 6 minutes 30 kgf / cm ² .

At this time, the hot pressing temperature is 150 to 200 ° C. The charcoal board thus produced preferably has a strength of 4.0 N / mm ² or more and a final mat moisture content of 26 to 50%.

In the present invention, it is preferable to use the printed thin paper having a basis weight of 15 to 35 g / m ² and a thickness of 0.02 to 0.08 mm. It is not good because the strength is bad.

In the present invention, the above-mentioned chemical fiber nonwoven fabric has a basis weight of 20 to 40 g / m ² , a thickness of 0.05 to 0.30 mm, and a porosity of 30 to 50%. Ability has an excellent effect. More preferably, a polypropylene nonwoven fabric is used because the strength is high and the durability is increased.

In the present invention, it is preferable to use a water-based vinyl adhesive as the adhesive used for attaching the pattern thin paper or the chemical fiber nonwoven fabric printed on the charcoal board. Since the water-based vinyl adhesive is environmentally friendly, VOC (Volatile Organic Chemicals) harmful to the human body is not released, so that the original function of charcoal is maintained and gas adsorption and dispersal of the final physical properties of the charcoal board laminate are maintained. The infrared radiation efficiency becomes equal to or higher than that of charcoal board. In the present invention polyvinyl acetate tape example Marujon (nonvolatile content: 42%) was Genwa excellent physical properties.

The application amount of the adhesive is desirably 100 to 300 g / m ² . Moreover, after apply | coating the said adhesive agent to the one side of the said charcoal board, the printed thin paper or the chemical fiber nonwoven fabric is adhere | attached, the heating temperature 100-150 degreeC, the applied pressure 5-15 kg / cm < ² >, the hot press time 1- It is desirable to bond in 5 minutes. This affects the adhesion efficiency, moisture evaporation, charcoal density, and the like, and is in a good range for gas adsorption and far-infrared radiation efficiency of the final product.

  Accordingly, the evaporation of moisture and the physical properties of the adhesive act together under the above conditions, so that sufficient gas adsorption and far infrared radiation efficiency required in the present invention can be obtained.

  Since the present invention as described above has properties such as dehumidification, repair, ventilation, and adsorption, it not only has an air purification action to adsorb odors and harmful gases, but also emits far infrared rays and anions to prevent noise and electromagnetic waves. In addition, it is possible to provide a charcoal board having a beautifully finished appearance while maintaining the characteristics of charcoal, such as blocking blood to harmful wavelengths and providing blood circulation, metabolism, and physical and mental stability.

  The present invention provides a manufacturing method with excellent gas adsorption, far-infrared emissivity and electromagnetic wave shielding effect while laminating thin paper or chemical fiber nonwoven fabric printed on the surface of charcoal board to make the appearance beautiful. Therefore, it can be fully utilized with the best human-friendly material as a building interior material in a residential environment.

  EXAMPLES Hereinafter, although this invention is demonstrated through an Example, this invention is not limited by the following Example.

Example 1
<Manufacture of charcoal board>
The charcoal used for the production of porous carbon material charcoal board was Oriental oak (Wood of the beech family Quercus genus, Quercus variabilis) fine charcoal from Wonju, Gangwon-do, Korea.

6 to 12 mesh charcoal particles 7 wt%, 12 to 18 mesh charcoal particles 14 wt%, 18 to 40 mesh charcoal particles 43 wt%, 40 to 60 mesh charcoal particles 23 wt%, 60 charcoal particles 9 wt% of 100 mesh, with respect to the fine charcoal particles mixture is 4% by weight 100 mesh or less of coal particles, polyvinyl acetate tape example Marujon (nonvolatile content: 42%) 15 wt% and isocyanurate Nate resin 5 the adhesive mixture containing by weight%, 1 hot-pressing for 1 minute 30 kgf / cm ² TsugiKa圧, 2 hot-pressing at 1 minute 30 seconds 10 kgf / cm ² TsugiKa圧, hot-pressing at 6 minutes 30 kgf / cm ² 3 The mixed charcoal board was manufactured by the next pressurization. At this time, the hot press temperature was 170 ° C., and the MC (water content) of the mat immediately before the hot press was 36%.

<Manufacture of charcoal board laminate with printed thin paper>
A thin paper with a pattern printed thereon was bonded to the manufactured charcoal board. The printed pattern thin paper had a basis weight of 35 g / m ² and a paper thickness of 0.04 mm. The adhesive is a polyvinyl acetate resin emulsion (non-volatile content: 42%), the coating amount is 160 g / m ² , the heating temperature is 130 ° C., the pressing force is 10 kg / cm ² , and the hot pressing time is 2 minutes. Appeared.

(Example 2)
<Manufacture of charcoal board with chemical fiber nonwoven fabric>
A mixed charcoal board (fine charcoal board) was produced in the same manner as in Example 1, and a polypropylene nonwoven fabric was bonded. The nonwoven fabric had a basis weight of 30 g / m ² , a thickness of 0.12 mm, and a porosity of 39.3%. The adhesive polyvinyl acetate tape example Marujon (nonvolatile content: 42%) coating weight at heating temperature 100 ° C. with 80 g / ^{m 2,} pressure 10 kg / cm ^2, manufactured by 2 minutes hot pressure time, FIG. 2 it Appeared.

(Comparative example)
In Comparative Example 1, charcoal having a weight equal to that of Example 1 of the present invention (fine charcoal) was used as it was. In Comparative Example 2, an experiment was performed using a charcoal board manufactured by the same method as in Example 1 and Example 2 and having no printed thin paper or nonwoven fabric laminated on one side.

[Experimental Example 1]
Using Examples 1 and 2 and Comparative Examples 1 and 2, they were placed in a measurement container, and the ethylene gas adsorption function was measured. The results are shown in Table 1 below.

* 1: Ethylene gas blank concentration change in the measurement container, ppm unit * 2: Charcoal board (size: 5cm x 5cm x 0.35cm) is put in the measurement container so that the gas is adsorbed only on the surface, The change in the residual concentration of ethylene gas in the vessel over time, in ppm, and the measured value being small are the fact that a lot of gas was adsorbed.
* 3: Charcoal board manufactured by the method of Example 1

  As shown in Table 1, the gas adsorption was higher when the charcoal was made of the board than the charcoal itself. This is probably because fine charcoal was properly crushed into powder. Fine charcoal board overlaid with pattern printed thin paper also had a higher gas adsorption effect than fine charcoal itself. It can be seen that there is no difference apart from the fine charcoal board that did not overlay.

[Experiment 2]
The physical and mechanical properties of the charcoal board by adhesion were measured using Examples 1 and 2 and Comparative Example 2, and are shown in Table 2 below. In Table 2, the thickness of the charcoal board and the charcoal board laminate was made constant at 3.5 mm.

  As shown in Table 2, the strength of the fine charcoal board overlaid with printed thin paper appeared to be equal or better than the fine charcoal board itself. Therefore, as in Example 1, in Example 2, it was found that if the nonwoven fabric overlay fine charcoal board was finished as a wall material, the function of charcoal was fully exhibited as well as decorativeness by placing fine charcoal in the room.

[Experiment 3]
The far-infrared emissivity of the charcoal board by adhesion was measured using Examples 1 and 2 and Comparative Example 2, and was shown in Table 3 below.

  The far-infrared emissivity dropped slightly from the fine charcoal board as shown in Table 3. However, since the emissivity was 90% or more at room temperature, it can be seen that the far-infrared emissivity is excellent.

[Experimental Example 4]
Using Example 1 and Comparative Example 2, the electromagnetic wave shielding effect by the plane wave of the plane material of the charcoal board by adhesion was measured under the following conditions, and is shown in Table 4 below.
1) Experimental environment: 24 ± 2 ° C., 43 ± 5% R.D. H
2) Test method: ASTM D4935-89

  As shown in Table 4, the electromagnetic wave shielding effect was effective in shielding electromagnetic waves both with the pattern thin paper and with the non-woven wrapping paper. If you actually put the mobile phone in a charcoal board box, it has the functionality that the mobile phone will not ring. Therefore, it was proved that if charcoal board overlaid on printed thin paper is finished as a wall material by placing fine charcoal itself in the room, the effect will be further improved and the charcoal function will be fully demonstrated with decorativeness. .

  The present invention as described above has properties such as dehumidification, repair, ventilation and adsorption, adsorbs bad odors and harmful gases, and not only purifies air but also emits far infrared rays and anions to prevent noise, electromagnetic waves and It is possible to provide a charcoal board whose appearance is beautifully finished while maintaining the characteristics of charcoal such as blocking blood to harmful wavelengths and maintaining blood circulation, metabolism and mind and body stability.

  The present invention provides a manufacturing method that has excellent gas adsorption, excellent far-infrared emissivity, and electromagnetic wave shielding effect while laminating thin paper or chemical fiber nonwoven fabric printed on the surface of charcoal board to make it look beautiful. By providing it, it can be fully utilized as a very good human-friendly material as a building interior material in a residential environment.

FIG. 1 is a photograph showing a charcoal board laminate to which printed thin paper is attached according to the present invention. FIG. 2 is a photograph showing a charcoal board laminate to which a nonwoven fabric according to the present invention is attached. FIG. 3 is a photograph showing a charcoal board manufactured with the fine charcoal of the present invention.

Claims (4)

While maintaining the function possessed by charcoal, a method for producing a charcoal board laminate excellent in gas adsorption effect, decorativeness and functionality,
A step of producing a charcoal board by mixing charcoal particles and an adhesive, and pressurizing the mixture three times or more at a temperature of 150 to 200 ° C. and a pressure condition of 5 to 40 kgf / cm ² ;
Applying a 100-300 g / m ² aqueous vinyl adhesive on one side of the charcoal board;
Laminating a printed thin paper having a basis weight of 15 to 35 g / m ² and a thickness of 0.02 to 0.08 mm on the adhesive layer;
The manufacturing method of a charcoal board laminated body provided with the process of heating and pressurizing a laminated body at 100-150 degreeC and 5-15 kgf / cm < ² >. Wherein the aqueous vinyl-based adhesive is a polyvinyl acetate tape example Marujon adhesive, method of manufacturing charcoal board laminate according to claim 1. While maintaining the function possessed by charcoal, a method for producing a charcoal board laminate excellent in gas adsorption effect, decorativeness and functionality,
A step of producing a charcoal board by mixing charcoal particles and an adhesive, and pressurizing the mixture three times or more at a temperature of 150 to 200 ° C. and a pressure condition of 5 to 40 kgf / cm ² ;
A step of applying an aqueous vinyl-based adhesive 100 to 300 g / ^{m 2} on one side of the charcoal board,
Laminating a chemical fiber nonwoven fabric having a basis weight of 20 to 40 g / m ² , a thickness of 0.05 to 0.30 mm, and a porosity of 30 to 50% on the adhesive layer;
The manufacturing method of the charcoal board laminated body provided with the process of heating and pressurizing a laminated body at 100-150 degreeC and 5-15 kgf / cm < ² >. Wherein the aqueous vinyl-based adhesive is a polyvinyl acetate tape example Marujon adhesive, method of manufacturing charcoal board laminate according to claim 3.

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