Functional resin composition containing nano-negative ion powder, method for producing the same, and product using the same

Abstract

The present invention aims to provide a technology for the manufacture of a resin composition in which negative ion powder is mixed with resin, that ensures uniform mixing of the introduced negative ion powder and prevents precipitation and oxidative damage during the molding process, thereby enabling the negative ion powder to stably exhibit its original functions. [Solution] A resin composition is obtained by uniformly mixing 7 to 10% by weight of nano-negative ion powder with the total amount of resin, and using polypropylene or a certain amount of biomass resin. This provides a resin composition that stably exhibits water and air purification, freshness preservation, antibacterial, deodorizing, and soil improvement effects. In particular, the resin composition is obtained by mixing nano-negative ion powder with resin, pouring it into a twin-screw extruder, and injection molding. The molded products can take the form of various products such as mugs, cups, trash cans, negative ion balls, air purifiers, humidifiers, and washing machine turntables.

Description

Technical Field

[0001] The present invention relates to a specific functional material (resin composition) having the functions of purifying water and air, maintaining freshness, antibacterial, deodorizing, and soil improvement by adding a certain amount of powder generating negative ions to a plastic resin, a method for producing the same, and a product applying the functional material.

Background Art

[0002] In recent years, there has been an increasing interest in improving health and living environment. Especially recently, after experiencing the pandemic caused by the corona infection, improving the quality of indoor air and water, deodorizing, and antibacterial measures have become increasingly important.

[0003] As conventional methods, air purifiers and water purification systems are used, but these devices have problems such as high energy consumption and high costs for installation and operation.

[0004]

[0005] As prior arts, methods of adding specific ores or compounds to a base material to generate negative ions have been proposed, but these technologies still have problems such as limited effects, limited choices of materials, or high processing difficulty.

[0006] For example, the following technologies can be exemplified. Patent Document 1 discloses a synthetic resin composition that efficiently generates negative ions from the coated surface by imparting an acid value to the resin used, resulting in a composition with excellent refreshing effect, antioxidant function, deodorizing and antibacterial function, and environmental friendliness. According to this technology, when the resin composition is used as a floor wax, the amount of negative ions generated decreases when nonionic or cationic surfactants are added, and the problem of not being able to generate a sufficient amount of negative ions has been solved to some extent, but it has low versatility and does not have a lasting effect.

[0007] Patent Document 2 discloses a multifunctional resin composition useful for environmental improvement applications such as amplification and maintenance of negative ions, utilization of far-infrared radiation emitted simultaneously, and antibacterial and deodorizing properties using photocatalytic materials. However, because it consists of a specific polymer substrate, minerals containing rare elements, and at least one of tourmaline or far-infrared ceramics, along with the addition and mixing of a photocatalytic functional material, and possesses a coexistence of positive ion suppression and negative ion excitation promotion effects, as well as the emission of far-infrared radiation and antibacterial and deodorizing functions using photocatalytic materials, it is difficult to process and is not practical.

[0008] Patent Document 3 discloses a multifunctional enamel composition that enhances antibacterial, deodorizing, and water purification effects through the emission of negative ions and simultaneous emission of far-infrared rays, and further enhances these effects with a photocatalytic material. However, the enamel material has the following configurations: 1) a mixture of natural mineral powders containing rare elements, 2) a mixture containing either tourmaline powder or far-infrared ceramic powder, 3) a mixture of natural mineral powders containing rare elements and a photocatalytic functional material, and 4) a mixture containing either tourmaline powder or far-infrared ceramic powder and a photocatalytic functional material. Therefore, it has the same problems as described in Patent Document 2 and lacks stability and durability of function.

[0009] Furthermore, Patent Document 4 discloses a multifunctional flexible polyvinyl chloride resin composition that provides continuous negative ion emission, along with deodorizing, antibacterial, and water purification effects, and enhances the deodorizing and antibacterial effects through the use of a photocatalytic functional material. However, this technology uses a flexible polyvinyl chloride resin matrix containing plasticizers and being poorly electrostatic, and is composed of a flexible polyvinyl chloride resin composition mixed with natural mineral powders containing rare elements, or a mixture of the said powders containing either tourmaline powder or far-infrared ceramic powder, and a photocatalytic functional material. As a result, although it is easier to process, it is weak against processing under high heat and pressure, and has a limited range of applications.

[0010] Therefore, there is a need for the development of negative ion generating materials that are more effective and can be used in a wider range of applications. Accordingly, there is a demand for new materials that can be developed into various shapes and products by adding and mixing negative ion generating powder with highly versatile materials such as silicone or plastic resins.

[0011] In recent years, focusing on modified plastics filled with negative ion powder, we have observed a technology in which, for example, polyester scrap and polypropylene scrap are mixed in a certain ratio to form a mixed scrap, and then the negative ion powder and the mixed scrap are poured into a parallel twin-screw extruder, extruded, and finally a resin composition is formed.

[0012] However, in the aforementioned technology, since the negative ion powder adheres to the surface of the scrap, it easily forms precipitates in the extruder, causing oxidative damage to the surface of the extrusion die, and there is a problem that the negative ion components cannot be uniformly distributed in the resin composition itself.

[0013] Naturally, even when the aforementioned resin composition is applied to various products for different applications, there is a problem in that the functionality of the negative ion component cannot be fully realized, and improvements in this area are needed. In addition, particularly in horticulture and home gardening, there is growing interest in using natural materials as much as possible, and research is actively underway to expand the use of resins by replacing some of them with biomass, which is an organic resource derived from living organisms such as plants and animals. [Prior art documents] [Patent Documents]

[0014] [Patent Document 1] Japanese Patent Publication No. 2005-015720 [Patent Document 2] Japanese Patent Publication No. 2006-063240 [Patent Document 3] Japanese Patent Publication No. 2007-131468 [Patent Document 4] Japanese Patent Publication No. 2008-045012 [Overview of the Initiative] [Problems that the invention aims to solve]

[0015] As in the representative example above, modified plastics filled with negative ion powder are formed by mixing polyester scrap and polypropylene scrap in a certain ratio to form a mixed scrap, pouring the negative ion powder and mixed scrap into a parallel twin-screw extruder, extruding them, and finally forming a resin composition. However, because the negative ion powder adheres to the surface of the scrap, it easily forms precipitates in the extruder, causing oxidative damage to the surface of the extrusion mold, and there is a problem that the negative ion components cannot be uniformly distributed in the resin composition itself. Naturally, even if the above resin composition is applied to products for various uses, there is a problem that the functionality of the negative ion components cannot be sufficiently achieved.

[0016] Therefore, the present invention has been made to solve the above problems and aims to provide a technology that enables uniform mixing of the introduced negative ion powder and prevents precipitation and oxidative damage during the molding process. As a result, the negative ion components are uniformly distributed within the resin composition, and the functionality of the negative ions can be exhibited stably and sustainably. In addition, various application-specific products using this resin composition can achieve the desired effects with high durability. [Means for solving the problem]

[0017] Examples of prior art related to these resin compositions include the following: In view of the aforementioned problems, the inventors investigated the technical challenges of applying negative ion powder to resins and delved deeper into the relevant case.

[0018] Regarding the manufacturing method of plastic materials containing negative ion powder, there was a problem in that oxidative damage was likely to occur during the extrusion molding process. In the production of compositions in which a material that generates negative ions is added to polypropylene resin, uniform dispersion of the powder was difficult, resulting in insufficient retention of functionality in the final product. In methods for uniformly dispersing negative ion powder in resins of different species, the specific effects of negative ions are not sufficiently achieved, and the problem of oxidative damage remains unresolved. For example, in a technique that adds negative ion powder to a mixture of polyester and polypropylene and molds it using an extruder, it was found that the problem of particle sedimentation and the difficulty of uniform dispersion remain unresolved.

[0019] When considering the development of applications for a wide range of products, the selection of resin is crucial. However, conventional technologies have not addressed the issues of uniform mixing, dispersion, and distribution of polypropylene and negative ion powder, as well as prevention of oxidative damage. Therefore, new technologies were needed to solve these problems. Furthermore, considering the expansion of its use to gardening and home vegetable gardens, there was a need for technology that could replace part of the resin with renewable resources.

[0020] In view of the above problems, the present invention is an inventive concept, and relates to a composition obtained by preferably adding and mixing 7 to 10% by weight of a powder that generates negative ions with respect to the total amount of the resin. The composition uses polypropylene as a base material and contains a nano negative ion powder with a particle size of 270 nm as a powder that generates negative ions, and has effects of purifying water and air, maintaining freshness, antibacterial, deodorizing, and soil improvement. Further, the above composition uses a nano negative ion powder containing TiO2, CaO, K2O, LiO, Al2O3, B2O3, MgO, Na2O, Fe2O3, FeO, MnO, and P2O5 as essential components to achieve the above effects.

[0021] Here, the resin composition of the present invention is formed by uniformly mixing this nano negative ion powder into the resin and pouring it into a twin screw extruder. In the molding process, it is possible to prevent precipitation and oxidation damage of the powder and to uniformly disperse and distribute it. The manufacturing method in the present invention usually follows the following steps. (1) Accurately weigh a new polypropylene material (hereinafter referred to as PP) and a nano negative ion powder (containing TiO2, CaO, K2O, LiO, Al2O3, B2O3, MgO, Na2O, Fe2O3, FeO, MnO, and P2O5 as essential components; the injection amount is 55,000 to 56,000 pieces / m 3 ) respectively, and mix them in advance. The mixing ratio is preferably 7 to 10% by weight of the negative ion powder with respect to 90 to 93% by weight of the PP material. (2) Pour the mixed material into a twin screw extrusion machine, react and extrude (injection process), and melt the PP material and the nano negative ion powder simultaneously with the chemical reaction. (3) The rod-shaped material formed by the extruder is cooled through a water tank. (4) The raw materials from (3) are sliced ​​and crushed, then passed through a vibrating sieve to finally form a new modified raw material (resin composition) containing negative ion powder components. For processing into other functional products, it is convenient to form this resin composition into granular pellets.

[0022] The resin composition obtained in this way can be applied to the form of mugs, cups, trash cans, planters, cosmetic bottles, toothbrushes, hairbrushes, washbasins, cooking bowls, freshness preservation sheets, water bottles, storage containers, plastic plates, silicone plates, clothing storage cases, water storage tanks, stirrers, plastic tanks, cooking water tanks, laundry balls (coils), negative ion balls, rice containers, and more.

[0023] Furthermore, by using this resin composition in household appliances such as washing machine turntables, dishwashers, air purifiers, humidifiers, bath enamels, hair dryers, water dispensers, and electric fans, their antibacterial, deodorizing, and purifying effects can be enhanced. By replacing a portion of the PP with renewable resources, such as plant-derived biomass like corn, to the extent that it does not interfere with the above process, it is permissible to expand its uses as a soil conditioner or fertilizer for horticulture and home gardens.

[0024] In other words, the present invention provides the following resin composition, a method for producing the same, and application products thereof. (1) A resin composition obtained by adding and mixing a negative ion generating powder in an amount of 7% to 10% by weight relative to the total amount of resin, wherein the resin is polypropylene, and the negative ion generating powder is a nano-negative ion powder with a particle size of 270 nm, and the composition is characterized in that it has water and air purification, freshness preservation, antibacterial, deodorizing, and soil improvement effects. (2) The resin composition according to (1), characterized in that the nano-negative ion powder contains TiO2, CaO, K2O, LiO, Al2O3, B2O3, MgO, Na2O, Fe2O3, FeO, MnO, and P2O5 as essential components. (3) A resin composition characterized by further adding 25% to 28% by weight of corn-derived biomass powder to the resin composition described in (1) above. (4) A method for molding the resin composition described in (1), characterized by uniformly mixing the negative ion generating powder with the resin, pouring the mixture into a twin-screw extruder, and injecting it to obtain a predetermined shape. (5) A product using a resin composition described in (1) to (3) or manufactured by the method of (4), characterized in that its form is a mug, cup, trash can, planter, soil improvement pellet, fertilizer, cosmetic bottle, toothbrush, hairbrush, washbasin, cooking bowl, freshness preservation sheet, water bottle, storage container, plastic plate, silicone plate, clothing storage case, water storage poly tank, stirrer, poly tank, cooking water tank, laundry ball (coil), negative ion ball, or rice container. (6) A product using a resin composition described in (1) to (3) or a resin composition manufactured by the manufacturing method of (4), characterized in that its form is a washing machine turntable, a dishwasher, an air purifier, a humidifier, a bath enamel, a hair dryer, a water dispenser, or a fan. (7) A product using a resin composition described in (1) to (3) or a resin composition manufactured by the manufacturing method of (4), characterized in that the form is pellets for gardening or home gardening, or fertilizer. [Effects of the Invention]

[0025] The resin composition according to the present invention is characterized by having water and air purification, freshness preservation, antibacterial and deodorizing effects, achieved by uniformly mixing a negative ion-generating powder with a polypropylene resin, and can be used in a variety of fields.

[0026] Specifically, it is expected to have applications in a wide range of fields, including kitchenware, household goods, home electrical appliances, and environmental purification devices. For example, it can be used as everyday items such as mugs, cups, trash cans, planters, cosmetic bottles, toothbrushes, hairbrushes, washbasins, cooking bowls, freshness preservation sheets, water bottles, storage containers, plastic plates, silicone plates, clothing storage cases, water storage tanks, stirrers, plastic tanks, cooking water tanks, laundry balls (coils), negative ion balls, and rice containers.

[0027] It can also be used in household electrical appliances such as washing machine turntables, dishwashers, air purifiers, humidifiers, bath enamels, hair dryers, water dispensers, and electric fans.

[0028] Furthermore, products using the resin composition of the present invention are highly promising as storage containers for maintaining the freshness of food for extended periods, as well as as household products with antibacterial and deodorizing properties. For example, food storage containers and water bottles can be used to store food hygienically while maintaining its freshness. Furthermore, because it possesses antibacterial and deodorizing properties, it can be applied to everyday items such as toothbrushes and hairbrushes, offering potential hygienic benefits. By replacing part of the resin with renewable corn-derived biomass, it can be used as a soil conditioner and fertilizer for horticulture and home gardens.

[0029] Furthermore, the resin composition of the present invention is also highly effective in applications of "FT processing" (Functional Transformation processing), which has recently been attracting attention. FT processing makes it possible to further improve the functionality of the product, and by using the resin composition of the present invention, the durability and functionality of the product can be further enhanced.

[0030] The applications of the material (ion pellets) of this invention are diverse, as follows: Because it has properties that suppress static electricity, it could be used in fields such as air purifiers, humidifiers, and household electrical appliances with surface treatments. In the automotive industry, using it in car interior materials and components can provide a comfortable in-car environment and reduce discomfort caused by static electricity. In the medical and healthcare industry, it is possible to minimize the effects of static electricity in medical devices and rehabilitation equipment. In the packaging industry, it is expected to be used as a packaging material for food and medical products, and to have the effect of preventing contamination caused by static electricity. In environmentally related industries, biomass-derived ion pellets are an environmentally friendly option that contributes to sustainable product development and can be used in eco-friendly products and renewable energy-related products. In the cosmetics industry, using it in cosmetic containers and packaging materials can reduce the effects of static electricity and help maintain product quality. In the building materials industry, its use as a building material or interior material is expected to improve the indoor environment and suppress static electricity. In the agricultural sector, it is expected that the use of biomass negative ion pellets derived from renewable resources will be expanded. Examples include pellets and fertilizers for gardening and home vegetable gardens. Thus, this invention has potential applications in a wide range of industrial fields, and its industrial applicability is very high. [Brief explanation of the drawing]

[0031] [Figure 1] Negative irradiance of the resin composition pellets of the present invention (measured value; pellets / m3) [Figure 2] Negative radiation of planters using the resin composition of the present invention (measured value; particles / m3) [Figure 3] Negative radiation of boards using the resin composition of the present invention (measured value; particles / m3) [Figure 4] Negative radiation of a Tupperware container using the resin composition of the present invention (measured value; particles / m3) [Figure 5] Negative radiation of cups using the resin composition of the present invention (measured value; pieces / m3) [Figure 6] Food preservation condition comparison test according to the present invention (oxidation inhibition effect on cheese) [Figure 7]Food preservation condition comparison test according to the present invention (mold suppression effect on sliced ​​bread) [Figure 8] Water quality comparison test according to the present invention [Figure 9] Plant growth comparison test according to the present invention (red radish sprouts) [Figure 10] Plant growth comparison test according to the present invention (hyacinth) [Figure 11] Measuring soil pH [Figure 12] Verification of biomass negative ion pellets (spinach) [Figure 13] Verification of biomass negative ion pellets (radish) [Figure 14] Testing of biomass negative ion pellets (mini salad carrots) [Figure 15] Verification of biomass negative ion pellets (dried sardines and shiso leaves) [Figure 16] Verification of biomass negative ion pellets (Kanemachi small turnips) [Figure 17] Verification of biomass negative ion pellets (snap peas) [Figure 18] Verification of biomass negative ion pellets (cherry wood) [Figure 19] Verification of biomass negative ion pellets (on golf course turf) [Figure 20] Verification of biomass negative ion pellets (houseplant; lucky bamboo) [Modes for carrying out the invention]

[0032] The embodiments of the present invention will be described in detail below based on examples, but the scope of the present invention is not limited to the examples of these embodiments.

[0033] As described above, the present invention provides a resin composition capable of stably exhibiting the functionality of negative ions, a method for producing the same, and a product utilizing the product thereof.

[0034] In other words, according to the present invention, (1) A resin composition obtained by adding and mixing a negative ion generating powder in an amount of 7% to 10% by weight relative to the total amount of resin, wherein the resin is polypropylene, and the negative ion generating powder is a nano-negative ion powder with a particle size of 270 nm, and the composition is characterized in that it has water and air purification, freshness preservation, antibacterial, deodorizing, and soil improvement effects. (2) The resin composition according to (1), characterized in that the nano-negative ion powder contains TiO2, CaO, K2O, LiO, Al2O3, B2O3, MgO, Na2O, Fe2O3, FeO, MnO, and P2O5 as essential components. (3) A resin composition characterized by further adding 25% to 28% by weight of corn-derived biomass powder to the resin composition described in (1) above. (4) A method for molding the resin composition described in (1), characterized by uniformly mixing the negative ion generating powder with the resin, pouring the mixture into a twin-screw extruder, and injecting it to obtain a predetermined shape. (5) A product using a resin composition described in (1) to (3) or manufactured by the method of (4), characterized in that its form is a mug, cup, trash can, planter, cosmetic bottle, toothbrush, hairbrush, washbasin, cooking bowl, freshness preservation sheet, water bottle, storage container, plastic plate, silicone plate, clothing storage case, water storage poly tank, stirrer, poly tank, cooking water tank, laundry ball (coil), negative ion ball, or rice container. (6) A product using a resin composition described in (1) to (3) or a resin composition manufactured by the manufacturing method of (4), characterized in that its form is a washing machine turntable, a dishwasher, an air purifier, a humidifier, a bath enamel, a hair dryer, a water dispenser, or a fan. (7) A product using a resin composition described in (1) to (3) or a resin composition manufactured by the manufacturing method of (4), characterized in that the form is pellets for gardening or home gardening, or fertilizer.

[0035] <Test 1> Evaluation of the electrical properties of ion pellets "Test Method" Complex dielectric constant measurements were performed on ion pellets using a cavity resonator, and the dielectric constant and conductivity of the sample were evaluated from the obtained complex dielectric constant. Measurements were performed on samples A to F listed below. The measurements were performed using a cavity resonator with the TM010 mode resonator method. With a center frequency of 2.45 GHz, the complex permittivity of the sample was measured by the change in the resonant frequency of the cavity resonator and the quality factor Q before and after inserting the sample, which was placed in a quartz tube, into the cavity resonator. From this, the relative permittivity and conductivity were determined. A Ion pellets (quantum processed) / Contains 7% negative ion mineral B Ion pellets / negative ion mineral 7% blend C Biomass ion pellets / negative ion ore 10% blend (*Made with 28% corn-derived biomass plastic) D Biomass ion pellets / negative ion ore 15% blend (*Made with 28% corn-derived biomass plastic) E. Biomass pellets / negative ion minerals (not included) F Plastic pellets / Negative ion mineral not included "Test Results" This is shown in Table 1. The biomass ion pellet with a concentration of 10% has the highest relative permittivity and the lowest conductivity, suggesting that it has the best ability to accumulate charged particles as a dielectric, while also possessing properties that allow for conductivity due to its low resistivity. [Table 1]

[0036] <Test 2> Disinfection test of resin containing negative ion minerals against E. coli (1) Short-term exposure test "Test Method" First, six beakers containing 100 ml of distilled water and a resin containing negative ion minerals (hereinafter referred to as "resin") wrapped in aluminum foil were each autoclaved. The conditions were as follows: two beakers were used as a control, two as resin, and two as FT-processed resin (PP resin with 7% by weight of negative ion powder). In addition, a culture medium of E. coli was prepared in advance, and the number of viable bacteria was measured. At the start of the test, the resin was added and stirred with a stirrer at room temperature for 30 minutes. A 100 μl sample was taken, mixed with 100 μl of E. coli culture solution (3.8 × 10³ CFU / ml), and then spread onto a standard agar plate. The cells were cultured at 30°C for 24 hours, and the number of viable bacteria was measured by counting the formed colonies. Test strain: Escherichia coli NBRC3972 "Test Results" As shown in Table 2, no difference in the number of E. coli was observed with or without resin. [Table 2]

[0037] (2) Long-term exposure test "Test Method" In each of the 100 ml beakers used in test (1), 100 μl of E. coli culture solution (3.8 × 10⁶ CFU / ml) was added and stirred at room temperature (final concentration 3.8 × 10³ CFU / ml). The test solution was collected after 24 hours, spread onto standard agar plates, and incubated at 30°C for 24 hours. The number of viable E. coli cells was measured by counting the colonies. "Test Results" The results are shown in Table 3. First, regarding the control, the concentration was reduced to about one-tenth of the initial concentration with stirring alone, but this was judged to be due to physical damage caused by stirring. After 24 hours, the number of E. coli in all four cells to which the resin was added was zero. Even considering the margin of error, this suggests that adding the resin has an inhibitory effect on E. coli. However, it should be noted that the resin has a lower specific gravity than water and covered the water surface, meaning the physical environment and oxygen conditions were different from those of the control group. Furthermore, the effects of FT processing could not be determined in this test. [Table 3]

[0038] <Test 3> Measured negative ion values We measured the actual negative ion levels of a product that utilizes the present invention (7% by weight of negative ion powder blended into PP resin). Regarding nano-negative ion pellets manufactured by the manufacturing method of the present invention and products (planters, boards, Tupperware, cups) that have been processed using these pellets, the negative ion emission (unit: ions / m) was determined. 3 The results of the measurements are shown in Figures 1 to 5. In all cases, the desired stable values ​​were measured.

[0039] <Test 4> Shelf life improvement test A shelf-life improvement test was conducted using a cup incorporating the present invention (7% by weight of negative ion powder blended into PP resin). In a test using a processed product (cup) made with the resin composition of the present invention, radishes were left at room temperature to check their spoilage. While radishes not placed in the cup developed mold after 8 days, radishes placed in the inventive cup showed no change. Furthermore, after 13 days of observation, it was clearly confirmed that mold growth was suppressed. The cup product of the present invention is expected to have a practical effect in extending shelf life.

[0040] <Test 5> Comparative test of food preservation status according to the present invention (inhibition effect on cheese oxidation) The storage conditions of cheese placed in a container (Tupperware) made with ion pellets according to the present invention (PP resin containing 7% by weight of negative ion powder) and in a regular container were compared after two weeks (15 days) (Figure 6). Storing the cheese in the container (Tupperware) made with ion pellets suppressed oxidation. This confirmed that ion pellets have an oxidation-inhibiting effect.

[0041] <Test 6> Comparative test of food preservation conditions according to the present invention (mold suppression effect on sliced ​​bread) In Experiment 5, we compared the storage conditions after 24 days between two types of Tupperware containers: one containing only bread purchased from a bakery, and another containing both bread purchased from a bakery and ion pellets (20g) in a tea bag (Tea Bag) (Figure 7). Storing the bread in the same Tupperware container suppressed the growth and occurrence of mold on the bread. This confirmed that ion pellets have a mold-inhibiting effect.

[0042] <Test 7> Water quality comparison test according to the present invention The water quality (degree of water contamination, such as suspensions) in a regular aquarium and an aquarium with an ion palette (the invention) made from ion pellets (PP resin with 7% by weight of negative ion powder) laid at the bottom was visually compared on days 10 and 15. As initial conditions, both aquariums were cleaned at the same time, and then filled with mineral water. Two tropical fish were placed in the aquarium with the invention, while one tropical fish was placed in the other aquarium for observation. As a result, although the aquarium with two fish usually becomes dirtier, placing the ion palette made from ion pellets at the bottom of the aquarium clearly eliminated water contamination and significantly suppressed algae growth (Figure 8).

[0043] <Test 8> Comparative plant growth test using ion pellets (1) Red radish sprouts "Test Method" The effect of the ion pellets of the present invention (PP resin containing 7% by weight of negative ion powder) on promoting plant growth was investigated under conditions A to D. In all cases, 100 seeds of red radish sprouts were sown in 1 kg of commercially available potting soil, and the growth rate was compared on the 17th day, several days after germination was confirmed (Figure 9). "Test Results" The results are shown in Table 4. The roots of red radish sprouts grown in potting soil mixed with ion pellets (FT processed) grew the longest. This confirmed that ion pellets (FT processed) have a plant growth-promoting effect. [Table 4]

[0044] (2) Hyacinth "Test Method" The growth of hyacinths was compared over 18 days between hyacinths that were not treated with the ion pellets of the present invention (PP resin containing 7% by weight of negative ion powder) on the soil surface and hyacinths that were treated with the ion pellets. "Test Results" Figure 10 shows the results of the observation period (right: no ion pellet application, left: with ion pellet application). Hyacinths that were treated with ion pellets bloomed earlier than those that were not treated. It was confirmed that ion pellets have a plant growth promoting effect.

[0045] <Test 9> Measurement of soil pH value "Exam Content" Ion pellets (PP resin mixed with 10% by weight of negative ion powder) were scattered on the surface of strongly alkaline soil, and the pH of the soil was compared after 6 days. "Test Results" As shown in Figure 11, the application of ion pellets shifted the strongly alkaline soil to weakly alkaline. It was confirmed that the ion pellets of the present invention have the effect of neutralizing strongly alkaline soil.

[0046] <Test 10> Verification of Biomass Negative Ion Pellets (Comparison of Plant Growth) Test "Exam Content" In this invention, a portion of the PP resin used was replaced with corn-derived biomass resin (28% by weight of the total resin was added and mixed), and 10% by weight of negative ion powder was kneaded into the total resin to produce biomass negative ion pellets, and the effect of these pellets on promoting plant growth was verified. "Test Results" (1) Figure 12 shows the results for "spinach". Increased yield and improved taste (elimination of astringency and bitterness) were observed. (2) Figure 13 shows the results for "20-day radish". Increased yield, improved freshness, and improved taste (reduced tangling) were observed. (3) Figure 14 shows the results for "mini salad carrots". Increased yield, improved appearance, and improved taste (broader sweetness) were observed. (4) Figure 15 shows the results for "Chirimen Shiso". An increase in yield and an improvement in aroma and taste (balance) were observed. (5) Figure 16 shows the results for "Kanemachi small turnip". Growth promotion and improved freshness were observed. (6) Figure 17 shows the results for snap peas. A clear difference in growth promotion was observed compared to spraying. (7) Figure 18 shows the results for the "cherry tree". When the invention was sprayed around the base of the tree, flowers bloomed near the base. This is thought to be evidence of the tree's good health and the effect of nutrient absorption. (8) Figure 19 shows the results for "golf course turf". The effect of promoting growth in withered areas was observed. (9) Figure 20 shows the results for "Houseplant; Lucky Bamboo". Effects on appearance and growth promotion were observed.

[0047] As described above, the present invention has potential applications in a wide range of industrial fields, including manufacturing and agriculture, and therefore has great potential for industrial use. Furthermore, it goes without saying that the resin composition according to the present invention has been confirmed by public institutions to possess the necessary safety for practical use.

Claims

1. A resin composition obtained by adding and mixing a negative ion generating powder in an amount of 7% to 10% by weight relative to the total amount of resin, wherein the resin is polypropylene, and the negative ion generating powder is a nano-negative ion powder with a particle size of 270 nm, and the composition is characterized in that it has water and air purification, freshness preservation, antibacterial, deodorizing, and soil improvement effects.

2. The nano-minus ion powder is TiO ２ , CaO, K ２ O, LiO, Al ２ O ３ , B ２ O ３ , MgO, Na ２ O, Fe ２ O ３ , FeO, MnO, and P ２ O ５ The resin composition according to claim 1, characterized by containing the above as essential components.

3. The resin composition according to claim 1, characterized in that 25% to 28% by weight of corn-derived biomass powder is further added.

4. A method for molding the resin composition described in claim 1, characterized by uniformly mixing the negative ion generating powder with the resin, pouring the mixture into a twin-screw extruder, and injecting it to obtain a predetermined shape.

5. A product using a resin composition manufactured by the resin composition described in claims 1 to 3 or by the manufacturing method of claim 4, characterized in that its form is a mug, cup, trash can, planter, cosmetic bottle, toothbrush, hairbrush, washbasin, cooking bowl, freshness preservation sheet, water bottle, storage container, plastic plate, silicone plate, clothing storage case, water storage poly tank, stirrer, poly tank, cooking water tank, laundry ball (coil), negative ion ball, or rice container.

6. A product using a resin composition manufactured by the resin composition described in claims 1 to 3 or by the manufacturing method of claim 4, characterized in that its form is a washing machine turntable, a dishwasher, an air purifier, a humidifier, a bath enamel, a hair dryer, a water dispenser, or a fan.

7. A product using a resin composition manufactured by the resin composition described in claims 1 to 3 or by the manufacturing method of claim 4, characterized in that the form is pellets for gardening or home gardening, or fertilizer.

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