JP7104058B2 - Powder-containing composite non-biodegradable resin composition, antibacterial tableware and antibacterial packaging material - Google Patents

Description

In the present invention, a powder antibacterial agent composed of calcium oxide or calcium hydroxide and various biomasss are applied to micropowder and kneaded and contained in a thermoplastic resin, a thermosetting resin, or a biodegradable resin composition to have multi-functionality. The present invention relates to a powder-containing composite non-biodegradable resin composition, an antibacterial tableware, and an antibacterial packaging material.

In recent years, most of the daily necessities that surround us are made of petroleum-derived chemically synthesized resins. In addition, the rapid increase in production and disposal has become a major social problem.
Most of the resin molded products are composed of thermoplastic resins and thermosetting resins, and the incineration treatment and landfill treatment at the time of disposal of them also cause global warming and soil pollution.

Due to the growing awareness of people's environment and the sophistication of processing methods such as the recycling law, the awareness of problems among traders and consumers is also increasing. Therefore, interest is focused on paper materials, wood materials, etc., which are easy to dispose of as combustible materials. Further, although a product having antibacterial performance by containing silver powder or the like in the material is also manufactured, the cost is high, water resistance, heat resistance, durability and the like are not sufficient.

Therefore, a molded product made of a low-cost powder-containing resin composition that is easy to dispose of as a combustible material and has multifunctional properties such as antibacterial properties and deodorant properties has attracted attention, and its research and development has been carried out. It has become active (see Patent Documents 1 and 2).

In addition, as a resin composition or composite material as a raw material, it is a concept representing the amount (mass) of biomass "bio", and is generally a renewable organic resource derived from living organisms, excluding fossil resources. Non-biodegradable resins are next-generation resins that reduce dependence on fossil resources such as oil by making effective use of "tamono" and contribute to the improvement of environmental problems facing modern society and the formation of environmentally friendly societies. Is attracting attention as.

Japanese Unexamined Patent Publication No. 2009-28523 Japanese Unexamined Patent Publication No. 2009-29121

Problems to be solved by the invention

The problem to be solved by the present invention is to provide a multifunctional powder-containing composite non-biodegradable resin composition at a low raw material cost, and to provide a powder-containing non-biodegradable resin composition that does not deteriorate various properties of the blended resin or the like. It is an object of the present invention to provide a biodegradable resin composition.

In order to achieve the above object, the powder-containing composite non-biodegradable resin composition according to the first aspect of the present invention is an eggshell or shell (marine), or a calcium oxide fine powder obtained by baking a terrestrial shell at a high temperature or calcium oxide thereof. A powder-containing composite non-biodegradable mixture containing watered calcium hydroxide fine powder or food waste biomass (egg shell or shell (marine) or terrestrial shell calcium carbonate fine powder) and a biodegradable resin composition. The content of the calcium hydroxide fine powder in the resin composition is 0.5% by mass to 10.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition, and the oxidation When calcium fine powder is used, the content is 4.0% by mass or less based on the total mass of the powder-containing composite non-biodegradable resin composition, and the content of the calcium carbonate fine powder is the powder-containing composite non-biodegradable resin composition. It is characterized in that it is 5.0% by mass to 60.0% by mass with respect to the total mass of the decomposable resin composition.

Further, the powder-containing composite non-biodegradable resin composition according to the second aspect of the present invention is a calcium oxide fine powder obtained by baking eggshells or shells (marine) or terrestrial shells at a high temperature, or hydroxylation obtained by adding water to the calcium oxide. A powder-containing resin composition containing calcium fine powder, fine powder of a cellulose material such as waste paper, waste sawn wood, forest residue, non-edible portion of agricultural products, and a biodegradable resin composition, wherein the water The content of the calcium oxide fine powder is 0.5% by mass to 10.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition, and the content when the calcium oxide fine powder is used. Is 4.0% by mass or less based on the total mass of the powder-containing composite non-biodegradable resin composition, and the content of the biomass cellulose material fine powder is the total mass of the powder-containing composite non-biodegradable resin composition. It is characterized in that it is 5.0% by mass to 60.0% by mass with respect to the mass.

Further, the powder-containing composite non-biodegradable resin composition according to the third aspect of the present invention is a calcium oxide fine powder obtained by baking eggshells or shells (marine) or terrestrial shells at a high temperature, or hydroxylation obtained by adding water to the calcium oxide. Calcium fine powder, food waste biomass (egg shell or shell (marine) or terrestrial shell calcium carbonate fine powder), and biomass (waste paper, waste lumber, forest residue, non-edible part of agricultural products, etc. And a powder-containing composite non-biodegradable resin composition containing the biodegradable resin composition, and the content of the calcium hydroxide fine powder is the total mass of the powder-containing composite non-biodegradable resin composition. On the other hand, the content is 0.5% by mass to 10.0% by mass, and the content when the calcium oxide fine powder is used is 4.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition. The content of the calcium carbonate fine powder is 5.0% by mass to 60.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition, and the content of the cellulosic material fine powder is as follows. The content is characterized by being 5.0% by mass to 60.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition.

Further, the antibacterial / deodorant processed product according to the fourth aspect of the present invention includes daily necessities using the powder-containing composite non-degradable resin composition described in the first to third aspects, antibacterial chopsticks, and antibacterial. It is characterized by being an antibacterial tableware such as a sex spoon, an antibacterial knife, an antibacterial fork, an antibacterial dish, an antibacterial tray, and an antibacterial cup.

In the powder-containing composite non-biodegradable resin composition according to the present invention, the following effects can be obtained by the above-mentioned constituent components.
(1) Compared with petroleum-derived resin products, it is possible to reduce CO2 emissions during incineration as a combustible material.
(2) Calcium oxide or calcium hydroxide is mixed for the purpose of antibacterial and deodorant effects, but this is derived from living organisms such as eggshells and shells (marine) terrestrial shells, and is allergic to the human body. There is no risk of causing side effects. In addition, it has extremely high bactericidal activity, and can exhibit antibacterial and deodorant effects comparable to those of conventional antibacterial agents using silver-based antibacterial agents and photocatalysts.

(3) It has a high deodorizing effect, and a powdered antibacterial agent composed of calcium oxide or calcium hydroxide can be mixed with a biodegradable resin base material. Incidentally, the biodegradable resin base material is polylactic acid (PLA), polyglycolic acid (PGA), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), polybutylene adipate terephthalate (PBAT BASF), polyethylene. Either terephthalate succinate (PETS) or poly (3-hydroxybutyrate-co-3-hydroxyhexanoate (PHBH)) is used.
(4) It is useful for reusing pieces of wood and paper that were conventionally disposed of, and can contribute to resource recycling in society as biomass.

It is a chart which shows the test result of the antibacterial effect of the powder antibacterial agent fine powder made of calcium hydroxide used in this invention. It is a chart which shows the antibacterial property test result of the composite non-biodegradable resin composition containing a multifunctional powder based on this invention. It is a chart which shows the deodorant property test of the composite non-biodegradable resin composition containing a multifunctional powder based on this invention.

Hereinafter, examples, which are the best mode for carrying out the present invention, will be described below with reference to the drawings attached to the specification of the present application.

(1) Generation of powdered antibacterial agent fine powder composed of calcium oxide or calcium hydroxide Calcium oxide or calcium hydroxide based on the present invention is a carbon dioxide of eggshells, shells (marine) or terrestrial shells derived from living organisms as its main raw material. Use calcium. A method for producing fine calcium hydroxide powder having high antibacterial, antiseptic and deodorant performance used in the present invention from these main raw materials will be described.

(1-1) When shells (marine products) are used as the main raw material The calcium oxide fine powder used in the present invention is calcium obtained by baking biological calcium carbonate at a high temperature, and the calcium hydroxide fine powder is added to the calcium oxide. This is finely pulverized by a predetermined fine pulverization method.

Here, as the biological calcium carbonate, bivalve shells such as scallop shells, clam shells, lajonkairia lajon shells, and hokki shells can be used regardless of whether they are natural or cultured, but other coral and the like can be used. May be good. However, it is most desirable to use scallop shells for aquaculture in view of the fact that the composition of the shells is uniform and the supply amount is extremely stable.

It is a well-known fact that calcium oxide produced by firing using biological calcium carbonate and calcium hydroxide obtained by adding water to it have bactericidal, antiseptic, and deodorant effects. In order to maximize the effect, the firing method and the crushing method are extremely important factors. That is, the alkali ion reduction ability of calcium hydroxide fine powder produced by firing and crushing biological calcium carbonate varies greatly depending on the firing method and the powder particle size obtained by the fine powdering step.

By the way, if calcium oxide before calcium hydroxide production is used instead of calcium hydroxide, calcium oxide has the property of causing heat generation during its hydration, so biodegradable resin kneading is performed. It is not very preferable to use calcium oxide in the present invention because it causes expansion and heating in the above and causes problems of resin deterioration after molding and molding. However, when it is intentionally used from the viewpoint of manufacturing cost, the content is 4.0 mass. % Or less. If the content is 4.0% by mass or less, the calorific value during kneading does not affect the resin molding temperature.

In this embodiment, not only biological calcium carbonate (specifically, scallop shells are used) is calcined, but also calcined in a special high-temperature calcining decomposition furnace within a range of 825 to 1,150 degrees Celsius. The firing time is preferably 1 hour or more. There is no problem if the firing temperature in the present invention is in the range of about 825 to 1,200 degrees Celsius, and it is usually desirable to perform high-temperature firing at a set temperature of about 1,000 degrees Celsius for about 1 hour. However, optimally, high-temperature firing at a set temperature of about 1,000 degrees Celsius for about 1 to 2 hours is most preferable.

Such a high-temperature firing treatment may be carried out in the air, or may be carried out within the range of an inert gas such as nitrogen or carbon dioxide. Incidentally, by performing the high temperature firing treatment, organic substances other than calcium carbonate contained in the calcium carbonate derived from the living body are removed by thermal decomposition.

The composition of biological calcium carbonate is (CaCO ₃ ), and calcium oxide (CaO) can be obtained by high-temperature firing (at 825 ° C. or higher for 1 hour or longer). In this example, the calcium oxide (CaO). Further, the calcium oxide can be modified and obtained by subjecting the calcium oxide to a predetermined hydration treatment.

Calcium hydroxide (Ca (OH) ₂ ) has an extremely high ability to reduce alkaline ions, and its pH (pH) ranges from 12.0 to 13.8. Due to the strong alkalinity (strong base) property, performances such as antibacterial effect, antiseptic effect, and deodorant effect are exhibited.

In this example, the alkaline pH (pH) differs greatly depending on the high-temperature firing and the firing time thereof, the amount of water added during hydration, and the method of adding water. It has also been confirmed and demonstrated that the particle size (miniaturization) of the powder also has a large effect on the alkaline pH (pH).

Further, in the above, the probability of conversion of biological calcium carbonate from calcium oxide (CaO) produced by firing to calcium hydroxide (Ca (OH) ₂ ) depends on the amount of water added during hydration and the method of addition. to differ greatly. In the present invention, it has been confirmed and demonstrated that the concentration of calcium hydroxide (Ca (OH) ₂ ) is an extremely important point and has a great influence on the alkaline pH (pH).

By performing the above treatment, the strong alkaline (strong base) pH (pH) rises to about 13.8, and the antibacterial effect, antiseptic effect, deodorant effect, etc. are exhibited extremely strongly, and moreover, silver-based antibacterial. It can be produced at an extremely low cost as compared with agents and the like.

Further, in the pulverization step, when the particle size of the crushed fine particles becomes 5 μm or less, recombination of the fine particles frequently occurs during pulverization, and the particle size of the fine particles becomes uneven and the particle size becomes uniform. Problems such as failure occur. Therefore, in this embodiment, in the pulverization treatment of calcium hydroxide (Ca (OH) ₂ ) after high-temperature firing and hydration, silica fine powder (SiO ₂ ) is converted to calcium hydroxide (SiO 2) in order to prevent recombination between fine particles. 0.1 to 1.0% by mass (preferably 0.3 to 0.6% by mass) is blended with respect to the total mass of Ca (OH) ₂ ). Thereby, the average particle size of the particles after the pulverization treatment can be made uniform to 0.3 to 3.0 μm.

If the step of homogenizing the particle size by the above-mentioned step is not particularly desired, in the pulverization treatment of calcium hydroxide (Ca (OH) ₂ ) after high-temperature firing and hydration, in order to prevent recombination between the fine particles, the same shall be applied. It is preferable to repeat the drying step for 3 to 4 hours with a forced dryer so that the water content of the powder is in the range of 2,000 ppm to 3,500 ppm, and the water content of the powder is optimally 2,800 ppm. Is desirable.

In this embodiment, the calcium hydroxide produced by the above treatment is set in a special fine pulverizer (for example, an air jet mill device), and a fine powder having an average particle size of about 0.5 to 3.0 μm is set. To generate.

(1-2) When eggshell is used as the main raw material The production process of calcium hydroxide powder when eggshell is used as the main raw material is also the same as the production process when the shell (seafood) shown above is used as the main raw material. It is almost the same. However, in the case of eggshell, unlike the case of the above-mentioned shell (seafood), the thickness of the shell is very thin and the mass is small, so the firing temperature is set low and the firing time is also set short. When eggshell is used as the main raw material in this example, it is desirable that the firing temperature is about 825 to 950 degrees Celsius and the firing time is about 5 to 25 minutes (preferably about 6 to 8 minutes).

Further, in the case of eggshell, unlike the case of shells (marine products), the amount of impurities contained in the raw materials is small, so that it is possible to obtain almost pure calcium hydroxide as compared with the case of the above-mentioned shells. The fine crushing process after firing and various parameters such as crushed particle size are the same as the manufacturing process for shells described above, but since the eggshell inner membrane is a protein, this eggshell inner membrane is before firing. It is desirable to bake only the eggshell after removing it.

(1-3) When terrestrial shellfish is used as the main raw material Here, the biological calcium carbonate is classified as edible escargot of gastropod pulmonary subretinal stylommatophora regardless of whether it is natural or aquaculture. Burgundy, Turkish, Petit Guri), using cultured escargot shells.

The production process of calcium hydroxide powder using terrestrial shells is almost the same as the production process when the shells (marine products) shown above are used as the main raw material. However, in the case of terrestrial shells, unlike the case of the above-mentioned shells (marine products), the thickness of the shells is very thin and the mass is small, so the firing temperature is set low and the firing time is also set short. When terrestrial shells are used as the main raw material in this example, it is desirable that the firing temperature is about 825 to 950 degrees Celsius and the firing time is about 5 to 25 minutes (preferably about 6 to 8 minutes).

(2) Generation of Calcium Carbonate Fine Powder Calcium carbonate based on the present invention is calcium carbonate such as eggshells and shells (marine products) or terrestrial shells, which are of biological origin, as the main raw material thereof. The method for producing the calcium carbonate fine powder will be described below.
(2-1) When shells (marine products) are used as the main raw material The calcium carbonate fine powder used in the present invention is obtained by finely pulverizing biological calcium carbonate by a predetermined fine pulverization method.

Here, as the biological calcium carbonate, shells with bivalves such as scallop shells, clam shells, lajonkairia lajon shells, and hokki shells can be used regardless of whether they are natural or cultured, but other coral and the like can be used. You may. However, in view of the fact that the composition of the shell is uniform and the supply amount is extremely stable, it is preferable to use the scallop shell for aquaculture, which is a biomass.

The composition of biological calcium carbonate is (CaCO ₃ ), and the calcium carbonate fine powder used in the present invention can be obtained by pulverizing the calcium carbonate fine powder to a particle size of about 10 to 80 μm with a mill pulverizer or the like.

(2-2) When Eggshell is Used as the Main Raw Material The calcium carbonate fine powder used in the present invention is obtained by finely pulverizing biological calcium carbonate by a predetermined fine pulverization method.

Regarding the manufacturing process of calcium carbonate powder when eggshell is used as the main raw material, the fine crushing process when the shell is used as the main raw material, and various parameters such as the crushed particle size, the above-mentioned shell It is the same as the manufacturing process in the case, but it is desirable to perform the above step with the inner membrane of the eggshell removed and only the eggshell.

(2-3) When terrestrial shells are used as the main raw material The manufacturing process of calcium carbonate powder when terrestrial shells are used as the main raw material also includes the fine pulverization process when the shells shown above are used as the main raw material. Various parameters such as crushed particle size are the same as the manufacturing process for shells described above, but the main raw materials such as eggshells, shells (marine), terrestrial shells, and other microorganisms, germs, and dirt are attached. Perform removal. Further, a fine powder aqueous solution of a powder antibacterial agent composed of calcium hydroxide of the present invention is used for removing the microbial germs. It is desirable that the aqueous solution has a concentration of 2% and permeates for about 10 minutes.

(3) Generation of fine powder of cellulosic material such as wood chips (including bamboo pieces) and paper (pulp) The fine powder of cellulosic material used in the present invention is a safe and secure substance with no specific main raw material. If so, it can be used. Here, a method for producing wood chips and fine paper (pulp) powder will be described.

(3-1) When a piece of wood (including a piece of bamboo) is used as the main raw material In the fine powder of the cellulosic material used in the present invention, when a piece of wood is used, the step of drying the piece of wood is important. The moisture content of wood chips is generally extremely high, and most of them exceed 80% except for desiccants. It is difficult to pulverize using wood chips with a high water content, and if the crushed wood powder is kneaded into resin as it is, problems such as deterioration of the physical properties of the resin will occur, so forced drying A process is required.

Wood chips are forcibly dried in a compulsory dryer to reduce the moisture content to 15 to 35%. Incidentally, the preferable water content is 15 to 25%. Although it depends on the type of wood, about 30% or less is the fiber saturation point of the piece of wood, so the one with a moisture content of 30% or less is used. By the way, when the wood piece reaches the fiber saturation point, its mechanical performance (longitudinal compression, lateral compression, hardness longitudinal tension, lateral tension, bending, shearing) is remarkably improved.

In crushing a piece of wood, a fine powder of a fibrous material using the piece of wood as a main raw material can be obtained by crushing the piece of wood that has undergone the above drying step to a particle size of about 80 to 100 μm with a mill crushing device or the like.

(3-2) When a piece of paper (pulp) is used as the main raw material When a piece of paper (pulp) is used as the fine powder of the fibrous material used in the present invention, the drying step of the piece of paper is less than that of the piece of wood. The water content varies depending on the storage state, but in the case of normal storage, the water content is 8 to 20%. In this case, the moisture content is also forcibly dried in the dryer to 8 to 10%. In the pulverization, the fibrous material fine powder can be obtained by pulverizing the paper piece obtained in the above drying step to a particle size of 80 to 100 μm by a mill pulverizer or the like.

(4) Generation of Cellulose Material Fine Powder for Inedible Agricultural Products, etc. The cellulosic material fine powder used in the present invention can use an inedible part for agricultural products, which is biomass as the main raw material. Here, a method for producing fine rice husk powder will be described.

This is a drying process when using rice husks, which are inedible parts of agricultural products, which are biomass, as the fine powder of the cellulosic material used in the present invention. The water content is low, and the water content varies depending on the storage state, but in the case of normal storage, the water content is 8.5 to 13.5%. In this case, in order to stabilize the moisture content, the dryer is forcibly dried to a moisture content of 8 to 10%. In crushing, the rice husks of the non-edible part of the agricultural product obtained from the above drying step are crushed to a particle size of 80 to 100 μm by a mill crushing device or the like to obtain a fine powder of the cellulosic material of the rice husk of the non-edible part of the agricultural product. be able to.

(5) Powder-containing composite non-decomposable resin composition based on the present invention Powder antibacterial agent fine powder made of calcium hydroxide obtained in the production process of (1) above, and carbon dioxide obtained in the production process of (2). Mixing fine powder of calcium carbonate or fine powder of cellulose material such as wood pieces (including bamboo pieces) and paper (pulp) obtained in the manufacturing process of (3) and (4), rice husks of non-edible parts of agricultural products with resin. As a result, it has antibacterial properties and the resin compounding ratio is reduced (the amount of reduced resin is the calcium carbonate fine powder obtained in the manufacturing processes of (2), (3) and (4) and wood pieces (bamboo pieces). (Including) and supplemented with fine powder of a cellulose material such as paper (pulp)), and a powder-containing composite non-decomposable resin composition with reduced production cost can be obtained.

In this example, the content ratio of the powder antibacterial agent fine powder composed of calcium hydroxide is 0.5% by mass with respect to the total mass of the powder-containing resin composition, regardless of which raw material is used as the base. It is set in the range of about 10.0% by mass, but a more preferable content ratio is 3% by mass to 8.0% by mass with respect to the total mass of the powder-containing resin composition, and the calcium oxide fine powder is used. The content when used is 4.0% by mass or less with respect to the total mass of the powder-containing composite non-biodegradable resin composition.

The fine powder, which is another mixture, is the calcium carbonate fine powder obtained in the manufacturing process of (2), or the fine powder of fibrous material such as wood pieces and paper (pulp) obtained in the manufacturing process of (3). , (4) The rice husk cellulosic material fine powder of the non-edible portion of the agricultural product obtained in the production process may contain one or both of them. The content ratio of each fine powder is preferably set in the range of 5.0% by mass to 60.0% by mass with respect to the total mass of the powder-containing composite non-decomposable resin composition. A more preferable content ratio is most preferably 45.0% by mass to 52.0% by mass with respect to the total mass of the powder-containing composite non-decomposable resin composition. Among the resins, PP (polypropylene) has a low impact resistance, but there is a paper that the impact resistance is increased by adding calcium carbonate. However, when the content ratios of (2), (3), and (4) exceed 60.0% by mass, the physical strength (tensile strength / bending strength) of the mixed resin composition is significantly lowered, and the chemical properties change. It increases water absorption.

The resin composition used in this example includes bioplastics such as polylactic acid (PLA), polyglycolic acid (PGA), polybutylene succinate (PBS), polybutylene succinate adipate (PBSA), and polybutylene adipate terephthalate. Biodegradable resins of (PBAT BASF), polyethylene terephthalate succinate (PETS), poly (3-hydroxybutyrate-co-3-hydroxyhexanoate (PHBH)) can be used, especially for resin selection. In addition, the properties of the resin are not particularly limited, and a mixed resin of each biodegradable resin can also be used.

(6) Applied Product of Powder-Containing Composite Non-Biodegradable Resin Composition Based on the Present Invention As described above, the powder-containing composite non-biodegradable resin composition based on the present invention has strong antibacterial and deodorant properties. Since it has and has extremely high safety to the human body, it is most suitable for use as tableware such as chopsticks, spoons, forks, knives, plates, trays, cups, etc., not limited to existing resin daily necessities.

For example, at present, one-way disposable chopsticks are the mainstream in the restaurant industry, catered lunches, and convenience store lunches. Some of them are made of materials such as wood and bamboo, but they are treated with highly dangerous chemicals as a disinfectant for germs. If the application product of the multifunctional powder-containing composite non-biodegradable resin composition according to the present invention is used, it is excellent in cost performance, highly safe in the same price range, and easy to dispose of as a combustible material. Tableware can be provided.

Further, the chopsticks made of the powder-containing composite non-biodegradable resin composition based on the present invention have sufficient physical strength and antibacterial performance, and therefore are made of the current resin in the food service industry. It can also be used as a substitute for chopsticks.

(7) Antibacterial / deodorant effect of fine powder of powdered antibacterial agent made of calcium hydroxide used in the present invention Next, a demonstration example of the antibacterial / deodorant effect of biologically derived calcium hydroxide based on the present invention will be described. conduct. FIG. 1 (A) of the attached drawing shows an antibacterial property test (JIS-Z 1902: 2015, bacterial solution absorption method, mutatis mutandis) regarding the antibacterial effect of a powder antibacterial agent fine powder composed of calcium hydroxide obtained in the manufacturing process of (1). ) Is shown.

According to the chart of FIG. 1, the calcium hydroxide obtained in the production process of (1) shows an antibacterial activity value of 5.7 against Staphylococcus aureus and its antibacterial activity against Escherichia coli. It has been shown to have an extremely high antibacterial activity value of 6.1, and its antibacterial and antiseptic effects have been certified to be effective.

Further, as data capable of visually recognizing the growth-suppressing effect of the multifunctional powder-containing composite non-biodegradable resin composition based on the present invention on bacteria, the test results by the antibacterial test of JIS · Z 2801: 2010 are shown in FIG. ..

According to the chart of FIG. 2, the multifunctional powder-containing composite non-biodegradable resin composition obtained in the production process of the present invention has an antibacterial activity value of> 4.7 against Staphylococcus aureus. It is shown that the antibacterial activity value of Escherichia coli has an extremely high value of> 5.9, and it is certified that the antibacterial effect is effective. It is based on the description of the test report dated February 10, 2017 by the general foundation "Kaken Test Center" (Osaka Prefecture). The antibacterial activity value is a parameter expressing the reproductive inhibitory effect of the antibacterial agent on bacteria, and generally, when the antibacterial activity value ≥ 2.0, the antibacterial / antiseptic effect is certified to be effective.

An example of demonstrating the deodorizing effect of the powder-containing composite non-biodegradable resin composition obtained in the production process of the present invention will be described. FIG. 3 of the attached drawing shows the result of the gas removal performance evaluation test regarding the deodorizing effect.

According to the chart of FIG. 3, the deodorizing effect of the powder-containing composite non-biodegradable resin composition obtained in the production process of the present invention is that the gas concentration decrease rate after 24 hours with respect to isovaleric acid gas is determined. It shows ≧ 99%, and for hydrogen sulfide gas, the gas concentration reduction rate after 6 hours shows an extremely high reduction rate of ≧ 97%, and it is certified that the deodorizing effect is effective.

As described above, the powder-containing resin composition based on the present invention uses a powder antibacterial agent fine powder composed of calcium oxide or calcium hydroxide as a raw material derived from natural organisms such as shells (marine), eggshells, and terrestrial shells. Therefore, excellent antibacterial and deodorant effects on foods can be realized without causing harmful side effects or allergic reactions to the human body. In addition, since the ratio of the resin composition used is small, the cost performance of the product is high, and the CO ₂ emission is small even in the combustion incinerator treatment at the time of disposal, so that consideration is given to the environment.

In this embodiment, since the biodegradable resin composition is used, the environmental load is smaller than that of the conventional resin derived from fossils and the like. Specifically, since it is decomposed by being left in the environment, there is no need to take the trouble of removing it, and there is no need to incinerate or landfill it. As described above, the biodegradable resin has an extremely large advantage as compared with the conventional one.

It should be noted that the embodiment of the present invention is not limited to the examples described above, and for example, the shape and arrangement of each part constituting each embodiment, the material thereof, and the like are the same as the gist of the present invention. It goes without saying that the invention can be changed according to the actual embodiment without deviation.

The configuration and method of the present invention described above can be used not only in the fields of daily necessities and tableware, but also in fields requiring antibacterial and deodorant effects.

Claims (3)

Eggshell or shell (marine) or terrestrial shell is calcined at high temperature and watered with calcium hydroxide powder antibacterial agent fine powder,
Calcium carbonate fine powder of eggshell or shell (seafood) or terrestrial shell,
A powder-containing composite non-biodegradable resin composition containing a biodegradable resin composition.
The content of the calcium hydroxide fine powder is 3.0% by mass to 7.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition.
The content of the calcium carbonate fine powder is 45.0% by mass to 52.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition. Sex resin composition. Eggshell or shell (marine) or terrestrial shell is calcined at high temperature and watered with calcium hydroxide powder antibacterial agent fine powder,
With a piece of wood or fine powder of paper fibrous material,
A powder-containing composite non-biodegradable resin composition containing a biodegradable resin composition.
The content of the calcium hydroxide fine powder is 3.0% by mass to 7.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition.
The content of the fibrous material fine powder is 45.0% by mass to 52.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition. Degradable resin composition. Eggshell or shell (marine) or terrestrial shell is calcined at high temperature and watered with calcium hydroxide powder antibacterial agent fine powder,
Fine powder of fibrous material of rice husk, which is an inedible part of agricultural products,
A powder-containing composite non-biodegradable resin composition containing a biodegradable resin composition.
The content of the calcium hydroxide fine powder is 3.0% by mass to 7.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition.
The content of the fibrous material fine powder is 45.0% by mass to 52.0% by mass with respect to the total mass of the powder-containing composite non-biodegradable resin composition. Degradable resin composition.

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