KR101486059B1 - manufacturing method for functional floor sheet - Google Patents

Abstract

More particularly, the present invention relates to a method for manufacturing a functional plate, and more particularly, to a method of manufacturing a functional plate having excellent antimicrobial activity by radiating far infrared rays by adding a microbial culture liquid and a powder made by kneading loess, To a process for producing the same.
The method for manufacturing functional functional plates of the present invention includes a kneading step of kneading a loess culture with a microorganism culture solution, a crushing step of drying and kneading the kneaded product obtained in the kneading step to obtain a loess microorganism powder, And a molding step for melting and molding the base composition.

Description

Technical Field [0001] The present invention relates to a manufacturing method for functional floor sheets,

More particularly, the present invention relates to a method for manufacturing a functional plate, and more particularly, to a method of manufacturing a functional plate having excellent antimicrobial activity by radiating far infrared rays by adding a microbial culture liquid and a powder made by kneading loess, To a process for producing the same.

Generally, it is well known that the long plate is used for heating and damping from the cement mortar by laying on the floor of a building made of cement mortar.

Such floorboards have traditionally been conventionally used as paperboards that have traditionally been fed with oil on the tops of paper, but in recent years, synthetic floorboards have been widely used to provide moisture resistance, cushioning, and ease of construction.

However, since the synthetic resin reversion plate contains harmful substances to the human body, it is not good for health, and it can not be ventilated and drained.

Due to the problems of such a synthetic resin rewinding plate, paper reeled paper produced by a conventional method is being reexamined. The paperboard paperboard is produced by bonding Korean paper with 3 to 5 mediums of flour paste, but it is environmentally harmless. However, since it is easily decomposed due to moisture and is susceptible to fungi and various bacteria, the room is not unsanitary, , And there are disadvantages in appearance and appearance.

The present invention has been made to overcome the above-mentioned problems, and it is an object of the present invention to provide a method for preventing deterioration due to moisture and improving durability by using synthetic resin as a main material and adding a powder made by kneading a microbial culture solution and loess, And which is excellent in antimicrobial activity.

In order to accomplish the above object, the present invention provides a method of manufacturing a functional plate, comprising: a kneading step of kneading a loess culture with a microorganism culture solution; A pulverizing step of drying and kneading the kneaded product obtained in the kneading step to obtain an ocher microorganism powder; And a molding step of melting and molding the base composition obtained by mixing the resin with the loess microorganism powder.

The forming step is characterized by adding sulfur and mineral powder to the base composition.

The forming step is characterized by further adding a plain white powder to the base composition.

According to the present invention, there is provided a method for manufacturing a functional sheet using a synthetic resin as a main material to prevent decay by moisture and improve durability, and to add a powder made by kneading a microbial culture solution with yellow clay to radiate a large amount of far- can do.

In addition, the functional plate manufactured according to the present invention is excellent in deodorizing power and antibacterial power in addition to far-infrared ray irradiation, thereby eliminating various bad odors in the room and suppressing the growth of harmful microorganisms, thereby improving the indoor living environment.

Hereinafter, a method of manufacturing a functional sheet according to a preferred embodiment of the present invention will be described.

A method for manufacturing a functional plate according to an embodiment of the present invention includes a kneading step of kneading a loess culture with a microorganism culture solution, a step of pulverizing the kneaded product obtained in the kneading step to obtain a loess microorganism powder, And a molding step in which the microbial powder is mixed with a resin, followed by melting and molding.

Specifically, the microorganism culture solution is added to the loess at the dough stage and kneaded.

The loess is mainly composed of calcium carbonate (CaCO ₃ ), silica (SiO ₂ ), alumina (Al ₂ O ₃ ), iron powder, magnesium (Mg), sodium (Na), potassium (K ₂ O) It is a yellow mineral composed of silt particles. In the present invention, loess has far infrared ray emission, humidity control ability, purification and deodorizing effect. The far-infrared ray of the loess is excellent in the blood circulation by facilitating metabolism of the human body, excellent in disinfection effect and toxic removal ability, excellent in neutralizing harmful substances, and excellent in purifying and deodorizing ability by honeycomb structure. It also acts to neutralize cement toxicity and the like.

In the present invention, loess is used in the form of undifferentiated powder. For this purpose, a large foreign matter is separated from the collected yellow loess and then pulverized in a crusher to make undifferentiated loess powder. After the foreign matter is separated, the loess can be dried and pulverized to facilitate pulverization.

The microorganism culture medium is one in which at least one useful microorganism group (Effective Microoganims) among photosynthetic bacteria, yeast, lactic acid bacteria, actinomycetes and filamentous bacteria is cultured in a medium. Yeast extract, glucose, sodium chloride (NaCl) and potassium hydrogen phosphate (K ₂ HPO ₄ ) to water as a medium. For example, 3 g of tryptone, 3 g of yeast extract, 3 g of glucose, 5 g of sodium chloride and 1 g of potassium hydrogen phosphate are added to 1 L of distilled water to prepare a culture medium. As another example of the medium, it is possible to add 20 g of brown sugar or 20 g of molasses to 1.8 liters of rice. After the medium is prepared, a stock solution of the useful microorganism group is added to the medium, followed by culturing at 30 to 40 ° C for 2 to 8 days to obtain a microorganism culture solution. Useful microorganism stocks can be purchased commercially.

The microorganism culture solution is added to the prepared loess powder and kneaded. For example, at a ratio of 0.2 to 0.8 L of the microbial culture solution per 1 kg of loess.

Next, the microorganism culture solution is added to the loess, and the kneaded dough is dried and pulverized. Through this process, the useful microorganisms in the microbial culture fluid and the metabolic products produced by the microbial metabolism are aggregated by the loess. The kneaded product may be dried to a moisture content of 3 to 7% by weight. The dried dough water is pulverized into ocher microbial powder. The pulverization may be carried out using a conventional pulverizer, and the pulverization may be carried out at a size of 100 to 300 mesh to prepare an ocher microorganism powder.

Next, the base composition is prepared by mixing the loess microbial powder with the resin as the main material. For example, the base composition may contain from 1 to 10 parts by weight of the loess microbial powder relative to 100 parts by weight of the resin. As the resin, any one of polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE) can be applied. Two or more resins may be mixed and used.

It is needless to say that conventional additives such as dispersants, stabilizers, and pigments may be further contained in consideration of moldability, functionality, and physical properties. For example, stearic acid may be used as a dispersant to improve dispersibility and moldability, and a thioester-based or sputter-based heat stabilizer may be used as a stabilizer. Further, inorganic pigments such as titanium oxide can be used as the pigment. When the additive is added, the content is 0.5 to 2% by weight in the total base composition.

The base composition obtained by mixing the loess microorganism powder with the resin is melted and molded to prepare a functional sheet. The molding method is not particularly limited, and conventionally known methods in the art can be applied. For example, the base composition can be molded using a single screw extruder, a twin screw extruder, a multi-screw extruder, or the like. The extruder is preheated for about 40 to 80 minutes and then the base composition is fed into the extruder in a state of being maintained at a temperature of 210 to 230 DEG C. The temperature of the extruder is raised stepwise to about 260 to 270 DEG C to melt the base composition The temperature is lowered to 200 to 210 ° C, and the melt is extruded to produce a sheet-like laminate.

In another embodiment of the present invention, sulfur and mineral powder are further mixed with the base composition in the molding step. For example, the base composition may contain 1 to 5 parts by weight of the loess microbial powder, 0.5 to 2 parts by weight of sulfur, and 0.5 to 3 parts by weight of the mineral powder, based on 100 parts by weight of the resin.

Sulfur can be used as sulfur. Sulfur increases the antimicrobial activity and the toxicity of the plate. Sulfur is used by pulverizing to a particle size of 100 to 300 mesh.

And a powder obtained by pulverizing silicate, germanium or quartzite ore with a mineral powder. The mineral powder has a particle size of 100 to 300 mesh.

The silicate is made mainly of silica, and has the effect of deodorizing, antibacterial, etc. by emitting far-infrared rays. For example, the main components of the silicate ores are 63.6 wt% of SiO ₂ , 0.9 wt% of Al ₂ O ₃ , Fe ₂ O ₃ 0.07 wt%, CaO 0.09 wt%, MgO 0.02 wt.%, K ₂ O 0.04 wt%, Na ₂ O 31.6 wt%, MnO 0.001 wt%, TiO ₂ 0.06% by weight, BaO 0.001 wt.%, CuO 0.001 wt%, MnO 0.001 wt%, and ZrO 0.01 wt%.

Germanium (Ge) is a porous mineral belonging to rare earth metals. It has the ability to decompose or neutralize heavy metals and various toxic or pollutants, and has deodorizing and antibacterial functions. In addition, it can radiate far infrared ray which is beneficial for development and growth, and it is possible to strengthen physiological activity and metabolism. For example, the major components of germanium ores are 0.044 weight% of Cu, 4.72 weight% of Pb, 0.42 weight% of Zn, 25.8 weight% of Fe, 0.36 weight% of Mn, 0.56 weight% of Ni, 0.018 weight% of Cd, 6.60% by weight, 0.6% by weight of C, 15.4% by weight of As, ₁₇ % by weight of S, 17.2% by weight of SiO2, 0.61% by weight of CaO and 9.018 to 9.708% by weight of water.

Quartz porphyry is a semi-plagioclase belonging to quartz porphyry and feldspar porphyry. It is composed of alkali feldspar and quartz, and its composition is very similar to that of granite. Respectively. Such elvan stones are excellent in adsorption and filtration action of harmful components due to porosity, ability to emit far-infrared rays, and odor deodorizing ability. For example, the main components of the quartz oresite are 63.64 wt% SiO ₂ , 0.18 wt% P ₂ O ₅ , 0.55 wt% TiO ₂ , 17.02 wt% Al ₂ O ₃ , 2.17 wt% MgO, 0.15 wt% MnO, Fe ₂ O ₃ 4.06 , 2.44 wt% K ₂ O, 1.92 wt% CaO, 3.58 wt% Na ₂ O, and 3.79 wt% Ignite Loss.

The mineral powder may be mixed with the same weight ratio of silicate, germanium, and elvan.

In another embodiment of the present invention, a starch powder may be further added to the base composition in the molding step. For example, the base composition may contain 1 to 7 parts by weight of the loess microbial powder and 1 to 3 parts by weight of the whitening powder relative to 100 parts by weight of the resin. The base composition may contain 1 to 5 parts by weight of the loess microbial powder, 0.5 to 2 parts by weight of sulfur, 0.5 to 3 parts by weight of the mineral powder, and 1 to 3 parts by weight of the whitening powder, based on 100 parts by weight of the resin.

The flour-like powder is obtained by drying the leaves of the unicorn tree and then pulverizing the leaves. The whitening powder is ground to a particle size of 100 to 300 mesh. The whitening powder increases the antimicrobial activity of the mat.

Hereinafter, the present invention will be described by way of examples. However, the following examples are intended to illustrate the present invention in detail, and the scope of the present invention is not limited to the following examples.

(Example 1)

The medium was prepared by adding 20 g of brown sugar to 1.8 liters of rice soak, and then 60 ml of a stock solution of useful microorganisms (EM-1, EVERMIRACLE CO., LTD.) Was added and cultured at 35 ° C for 6 days to prepare a microbial culture solution. Then, 0.6 L of the microbial culture was added per 1 kg of the loess powder, and the kneaded dough was dried, and pulverized to a size of 200 mesh to prepare a loess microorganism powder.

Then, 5.5 parts by weight of the loess microbial powder was mixed with 100 parts by weight of the polyvinyl chloride resin, and the base composition, which was stirred evenly, was put into an extruder preheated to a temperature of 220 ° C., melted by heating to about 265 ° C., Temperature to form a sheet-like laminate having a thickness of 4 mm.

(Example 2)

5 parts by weight of the ocher microorganism powder, 1.5 parts by weight of the inorganic sulfur, 2 parts by weight of the mineral powder and 2 parts by weight of the whitening powder were added to 100 parts by weight of the polyvinyl chloride resin in the same manner as in Example 1, .

The mineral powder was prepared by mixing silica powder, germanium powder, and quartz stone powder at the same weight ratio, and then pulverizing the powder to a size of about 150 mesh.

(Comparative Example)

A plate made of polyvinyl chloride resin was purchased and used.

<1. Far infrared ray emissivity and radiant energy measurement test>

Far infrared ray emissivity and radiant energy were measured by the test method of KCL-FIR-1005: 2001 for the test specimens prepared according to the examples, and the results are shown in Table 1 below. The values in the following Table 1 are the results of measurement with respect to a black body using an FT-IR spectrometer at a measurement temperature of 40 ° C and a measurement wavelength of 5 to 20 μm.

division Emissivity Radiant energy (W / ㎡) Example 1 0.891 3.59 × 10 ² Example 2 0.905 3.87 × 10 ²

As shown in Table 1, it was confirmed that the long plate according to the embodiment of the present invention has excellent far-infrared radiation effect.

<2. Deodorization test>

Table 2 shows the concentration values measured by the ammonia deodorization test (KICM-FIR-1004) using a gas detection tube for testing the deodorizing power of the long plates of Example 1 and Comparative Example.

division Initial (ppm) After 30 minutes (ppm) After 60 minutes (ppm) After 90 minutes (ppm) After 120 minutes (ppm) Example 1 500 365 257 208 170 Comparative Example 500 491 482 453 442 blank 500 496 485 462 455

Referring to Table 2, the ammonia concentration of 500 ppm in the initial stage of Example 1 was lowered to 170 ppm after 120 minutes, showing excellent deodorizing ability. On the other hand, in the comparative example, the ammonia concentration after 120 minutes was 442 ppm, and it was confirmed that there was almost no deodorizing effect.

<3. Antibacterial test>

The antimicrobial activity of the plates according to the above Examples and Comparative Examples was measured. The antimicrobial activity was measured according to the Shake Flask Method (pressure-application method). The initial number of bacteria in the experimental group to which the long plate sample was added was measured, and the number of live bacteria after 24 hours was measured. The experimental group was divided into first and second test groups, into which the long plates of Examples 1 and 2 were respectively put, and a control group into which the long plates of the comparative example were put. In addition, Escherichia coli Coli , ATCC 25922) was used. The test results are shown in Table 3 below.

division Initial (number of bacteria / ml) After 24 hours (number of bacteria / ml) The first test section 4.7 × 10 ⁵ 1.5 x 10 ² The second test section 5.3 × 10 ⁵ 4.3 x 10 Control 5.0 × 10 ⁵ 3.0 × 10 ⁶

As shown in Table 3, the bacterial counts of the first and second test groups were significantly reduced after 24 hours. On the other hand, in the control group, the number of bacteria increased after 24 hours rather than the initial value. From the above results, it can be seen that the functional plate prepared according to the present invention inhibits the growth of bacteria and thus has excellent antimicrobial activity. Therefore, it is anticipated that functional granules can inhibit the growth of harmful microorganisms on the bottom due to strong antimicrobial effect.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

Claims (3)

delete A kneading step of adding 0.2 to 0.8 L of a microorganism culture solution per 1 kg of loess and kneading;
A pulverizing step of drying and kneading the kneaded product obtained in the kneading step to obtain an ocher microorganism powder;
1 to 5 parts by weight of the loess microbial powder, 0.5 to 2 parts by weight of sulfur, and 0.5 to 3 parts by weight of a mineral powder mixed with silicate and germanium and elvan are mixed with 100 parts by weight of the resin; Wherein the method comprises the steps of: [3] The method according to claim 2, wherein the forming step further comprises adding a monofilament powder to the base composition.