WO2005073463A1

WO2005073463A1 - Functional wallpaper emitting anions and far infrared rays and method for manufacturing the same

Info

Publication number: WO2005073463A1
Application number: PCT/KR2005/000264
Authority: WO
Inventors: Indong Kang
Original assignee: DSG DAEDONG WALLPAPER Co Ltd
Current assignee: DSG DAEDONG WALLPAPER Co Ltd
Priority date: 2004-01-30
Filing date: 2005-01-28
Publication date: 2005-08-11
Anticipated expiration: 2006-07-30
Also published as: KR200347962Y1

Abstract

Disclosed is functional wallpaper comprising tourmaline and elvan powders so as to emit anions and far infrared rays. The functional wallpaper comprises a base layer, a layer formed of a foamed polyvinyl chloride resin comprising tourmaline and elvan powder, and a print layer, when viewed from the bottom surface adhered to a wall surface. The functional wallpaper emits a great amount of anions and far infrared rays, and thus refreshes indoor environments and provides excellent effects favorable to the human body.

Description

Description FUNCTIONAL WALLPAPER EMITTING ANIONS AND FAR INFRARED RAYS AND METHOD FOR MANUFACTURING THE SAME Technical Field

[1] The present invention relates to functional wallpaper emitting anions and far infrared rays. More particularly, the present invention relates to functional wallpaper comprising tourmaline and elvan powders so as to emit anions and far infrared rays as well as to a method for manufacturing the same. Background Art

[2] In general, wallpaper is used in buildings such as houses and offices for the purpose of improving an aesthetic aspect. Currently, wallpaper is essential for modern style buildings.

[3] Wallpaper was used originally for the purpose of decorating walls. However, the latest wallpaper is provided with another function in addition to its basic function as decoration materials. Particularly, there is a need for wallpaper having a health-aid function so as to protect inhabitants from harmful indoor environments.

[4] Such harmful indoor environments result mainly from air pollution. Particularly, such air pollution recently has become a more serious problem due to various chemicals and chemically treated materials used for the construction of buildings, resulting in illness such as respiratory disorders, asthma, vertigo, etc.

[5] Although various elements and substances including nitrogen, oxygen, carbonic acid gas and hydrogen are present in a mixed form in the air, each of the elements and substances actually floats in the air in the state of cations and anions. Most people feel refreshed when they are around a waterfall, fountain or a stream, because such places are enriched with anions. However, emission of cations increases more and more due to the environment of offices surrounded with various OA instruments, smokes from cigarettes, fumes from industrial plants, various household electronic appliances, etc. On the other hand, emission of anions decreases more and more. Such a decrease in anion emission results in various altered phenomena. Anions are abundant in the non- contaminated air of good quality and with high purity and serve to alleviate various human ailments.

[6] Since wallpaper surrounds an indoor environment over a relatively large area, it can have a direct effect on the indoor air pollution. Accordingly, various kinds of functional wallpaper have been developed.

[7] In general, wallpaper using a photocatalyst, wallpaper using medicinal herbs, wallpaper using ceramics, etc. are developed and commercially available. Disclosure of Invention Technical Problem

[8] However, conventional functional wallpaper is produced by a relatively complicated process and thus are expensive. Additionally, because their functions are poor compared to their high costs, the consumers hesitate to select them. Moreover, conventional functional wallpaper is easily worn and thus shows poor service life. Technical Solution

[9] Therefore, the present invention has been made in view of the above-mentioned problems. It is an object of the present invention to provide functional wallpaper emitting anions and far infrared rays, which comprises polyvinyl chloride resin to which tourmaline and elvan powders are added so as to emit anions and far infrared rays and to increase the amount of anion and far infrared ray emission. It is another object of the present invention is to provide a method for manufacturing the above functional wallpaper.

[10] According to an aspect of the present invention, there is provided functional wallpaper emitting anions and far infrared rays, which comprises a base layer, a coating layer formed on the base layer and a print layer formed on the coating layer, characterized in that the coating layer is formed of a polyvinyl chloride coating layer, and that the polyvinyl chloride coating layer comprises a polyvinyl chloride resin, functional powder, a plasticizer, filler, foaming agent, foaming accelerator, stabilizer and a white inorganic pigment.

[11] The polyvinyl chloride coating layer is characterized by comprising 100 wt% of a polyvinyl chloride resin, 3-6 wt% of functional powder, 65-75 wt% of a plasticizer, 40-80 wt% of a filler, 1.5-2.5 wt% of a foaming agent, 0.5-1.5 wt% of a foaming accelerator, 2-4 wt% of a stabilizer, and 5-15 wt% of a white inorganic pigment.

[12] The functional powder is a mixture of tourmaline powder with elvan powder, wherein the mixing ratio of tourmaline to elvan is 80-90% : 10-20%.

[13] As used in the polyvinyl chloride coating layer, the plasticizer is DOP (dioctyl phthalate), the filler is CaCO , the foaming agent is azodicarbonamide, the foaming accelerator is ZnO, the stabilizer is barium and the white inorganic pigment is TiO .

[14] The method for manufacturing functional wallpaper emitting anions and far infrared rays according to the present invention comprises the steps of: pulverizing crude ores of tourmaline and elvan; mixing the pulverized tourmaline and elvan powders with a polyvinyl chloride resin blend; coating the resultant mixture on a base layer; gelling the coating layer; carrying out printing; carrying out foaming; and subjecting the resultant product to embossing. Advantageous Effects

[15] Description of Drawings

[16] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:

[17] FIG. 1 is a flow chart showing a method for manufacturing functional wallpaper emitting anions and far infrared rays according to a preferred embodiment of the present invention; and

[18] FIG. 2 is a sectional view showing the functional wallpaper emitting anions and far infrared rays according to a preferred embodiment of the present invention. Best Mode

[19] Mode for Invention

[20] Reference will now be made in detail to the preferred embodiments of the present invention.

[21] Tourmaline is also referred to as electric stone and is a mineral substance emitting anions and far infrared rays. Elvan is generally known as a natural ore emitting a great amount of far infrared rays and thus providing excellent effects favorable to the human body.

[22] As generally known in the art, far infrared rays are referred to as infrared rays, particularly having long wavelengths. Far infrared rays can penetrate deep into the skin to transfer heat, and thus help to remove bacteria responsible for various diseases. Further, far infrared rays can dilate capillary vessels and thus help to the blood circulation and cell tissue generation.

[23] As shown in FIG. 1, the method for manufacturing functional wallpaper according to the present invention comprises: a step 10 for pulverizing crude ores of tourmaline and elvan; a step 20 for mixing the pulverized tourmaline and elvan powders with a polyvinyl chloride resin blend; a step 30 for coating the mixture on a base layer; a step 40 for gelling the coating layer; a step 50 for carrying out printing; a step 60 for carrying out foaming; and a step 70 for subjecting the resultant product to embossing.

[24] As shown in FIG. 2, the functional wallpaper according to the present invention comprises, when viewed from a wall surface 100, a base layer 110, a coating layer 120 formed on the base layer, and a print layer 130 formed on the coating layer. The coating layer 120 is formed of a polyvinyl chloride resin.

[25] The functional powder added to the coating layer 120 comprises 80-90 wt% of tourmaline and 10-20 wt% of elvan. More particularly, the coating layer 120 comprises 100 wt% of a polyvinyl chloride resin (having a polymerization degree of 500-1500), 3-6 wt% of functional powder, 65-75 wt% of a plasticizer (DOP, DINP (diisononyl phthalate) and environmental-friendly plasticizers), 40-80 wt% of a filler (CaCO ), 1.5-2.5 wt% of a foaming agent (azodicarbonamide), 0.5-1.5 wt% of a foaming accelerator (ZnO), 2-4 wt% of a stabilizer (barium, potassium and calcium- zinc based compounds), and 5-15 wt% of a white inorganic pigment (TiO ).

[26] Each of the above values expressed in wt% is calculated based on 100 wt% of polyvinyl chloride resin.

[27] If the functional powder is used in an amount smaller than the above range, the amount of anion and far infrared ray emission decreases. On the other hand, even if the functional powder is used in an amount greater than the above range, the amount of anion and far infrared ray emission does not increase significantly. Moreover, in the latter case, there is an additional problem of high cost.

[28] The functional wallpaper according to a preferred embodiment of the present invention was subjected to several tests by Korea Institute of Construction Materials. The test results are shown hereinafter.

[29] Experimental Example 1 [30] The following test was performed to determine a degree of anion emission from the functional wallpaper emitting anions and far infrared rays according to a preferred embodiment of the present invention.

[31] A cylindrical test sample having an inner diameter of 44 mm and a height of 297 mm was used.

[32] The test method is as follows. The test sample was subjected to a test by using a charge particle measuring apparatus, under the conditions of a temperature of 21 °C , a humidity of 42% and an anion number in the atmosphere of 73/cc. Anions emitted from test samples were measured and recorded as ion numbers per unit volume.

[33] Commercially available functional wallpaper was used as a control. The control sample was prepared and tested in the same manner as described above. The results are shown in the following Table 1.

[34] [Table 1] [35]

[36] As can be seen from Table 1, the functional wallpaper emitting anions and far infrared rays according to the present invention shows a greater amount of anion emission compared to the conventional functional wallpaper. [37] Experimental Example 2

[38] The following test was performed to determine a degree of far infrared ray emission from the functional wallpaper emitting anions and far infrared rays according to a preferred embodiment of the present invention. [39] Experimental Environment: Temperature 40 °C

[40] Measuring Apparatus: FT-IR Spectrometer

[41] Method: The value measured by using the measuring apparatus was compared to the reference value obtained from a black body. [42] The results obtained from the above-described test are shown in the following Table 2. [43] [Table 2]

[44]

[45] Experimental Example 3

[46] The following test was performed to determine the effect for reducing indoor air pollution when using the functional wallpaper emitting anions and far infrared rays according to a preferred embodiment of the present invention.

[47] Test Sample Size: 10 X 10 cm²

[48] Test Gas: Formaldehyde (HCHO) = 1 D , Ammonia (NH) = 2 D

[49] Container Volume = 1 ,000 ml.

[50] The test sample was introduced into the container and the test gas was injected thereto. Then, the amount of test gas was measured at intervals of 30 minutes. The functional wallpaper according to the present invention can reduce the amount of test gas with the lapse of time. Such effect of the functional wallpaper according to the present invention is defined as the deodorizing ratio represented by the following formula:

[51] Deodorizing Ratio(%)= [(Blank gas concentration -Sample gas con- centration)/(Blank gas concentration)] X 100

[52] The test results are shown in the following Table 3.

[53] [Table 3]

[55] In Table 3, when the deodorizing ratio is 100%, anions emitted from the sample can neutralize the test gas in the container completely. Therefore, it can be seen that the functional wallpaper according to the present invention can emit anions sufficient to neutralize the test gas in the container completely in about 2 hours. Industrial Applicability

[56] As can be seen from the foregoing, the functional wallpaper according to the present invention emits a great amount of anions and far infrared rays, and thus refreshes indoor environments and provides excellent effects favorable to the human body.

[57] While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment and the drawings. On the contrary, it is intended to cover various modifications and variations within the spirit and scope of the appended claims. Sequence List Text

[58]

Claims

[1] Functional wallpaper emitting anions and far infrared rays, which comprises a base layer, a coating layer formed on the base layer and a print layer formed on the coating layer, characterized in that the coating layer is formed of a polyvinyl chloride coating layer, and that the polyvinyl chloride coating layer comprises a polyvinyl chloride resin, functional powder, a plasticizer, filler, foaming agent, foaming accelerator, stabilizer and a white inorganic pigment.

[2] The functional wallpaper emitting anions and far infrared rays according to claim 1, wherein the polyvinyl chloride coating layer comprises 100 wt% of a polyvinyl chloride resin, 3-6 wt% of functional powder, 65-75 wt% of a plasticizer, 40-80 wt% of a filler, 1.5-2.5 wt% of a foaming agent, 0.5-1.5 wt% of a foaming accelerator, 2-4 wt% of a stabilizer, and 5-15 wt% of a white inorganic pigment.

[3] The functional wallpaper emitting anions and far infrared rays according to claim 1 or claim 2, wherein the functional powder is a mixture of tourmaline powder with elvan powder, the mixing ratio of tourmaline to elvan being 80-90% : 10-20%.

[4] The functional wallpaper emitting anions and far infrared rays according to claim 1 or claim 2, wherein the plasticizer is DOP (dioctyl phthalate), the filler is CaCO , the foaming agent is azodicarbonamide, the foaming accelerator is ZnO, the stabilizer is barium and the white inorganic pigment is TiO 2.

[5] A method for manufacturing functional wallpaper emitting anions and far infrared rays comprising the steps of: pulverizing crude ores of tourmaline and elvan; mixing the pulverized tourmaline and elvan powders with a polyvinyl chloride resin blend; coating the resultant mixture on a base layer; gelling the coating layer; carrying out printing; carrying out foaming; and subjecting the resultant product to embossing.