KR20220148019A - Bio antibacterial, antivirus pellet and products by using copper, zinc, natural product and porous carriers - Google Patents

Abstract

The present invention relates to a bio-antibacterial and anti-viral base material composition, and more particularly, to a bio-antibacterial and anti-viral base material composition, which can be used for a roll bag, sanitary bag, zipper bag, non-woven fabric, envelope, air cap, pouch, wrap, sanitary glove and injection-molded article by using antibacterial and anti-viral base materials containing metal derivatives and porous carriers including copper and zinc.

Description

Bio antibacterial and antiviral raw materials and products using copper, zinc, natural products and porous carriers {BIO ANTIBACTERIAL, ANTIVIRUS PELLET AND PRODUCTS BY USING COPPER, ZINC, NATURAL PRODUCT AND POROUS CARRIERS}

The present invention relates to bio-antibacterial and anti-viral raw materials and products, and more particularly, to bio-antibacterial and anti-viral raw materials including metal derivatives including copper and zinc, natural products and porous carriers, and anti-bacterial and anti-viral rollbacks using the same, It relates to antibacterial and antiviral film products and antibacterial and antiviral injection products for sanitary bags, zipper bags, non-woven fabrics, bags, air caps, pouches, wraps and sanitary gloves.

With the increasing trend of infectious diseases at home and abroad every year, interest in safety and the need for a safe and sanitary environment, healthy life, and safety from contamination of bacteria and viruses is increasing.

In general, plastic films and injection-molded products use polyethylene and polypropylene-based plastic resins as their main raw materials. Since there is no such thing, it is usually manufactured by adding various functional substances to extend the shelf life.

Specifically, there is known a technique for sterilizing specific bacteria harmful to the human body or mixing a certain amount of an antibacterial material such as silver or copper having an antibacterial activity to prevent the specific bacteria from propagating when plastic is molded.

In addition, as the antibacterial agent, an inorganic antibacterial agent having high safety, long-lasting antibacterial action and excellent heat resistance compared to an organic antibacterial agent is mainly used.

However, when an antimicrobial material such as silver or copper having the antibacterial activity or an inorganic antibacterial agent is used, sufficient antibacterial activity may not be realized or a problem may occur during product molding.

Some polysaccharides such as lactoferrin, polyphenol, tannin, and mushrooms are used as antiviral agents that kill viruses or inhibit growth, but in many cases it is difficult to expect antiviral activity within a short time.

Meanwhile, as the importance of the environment is rising, the development of technology that does not pollute the environment is becoming an essential element in various industrial fields. Plastic, which has become a necessity in our daily life, has become the main culprit of environmental pollution because it does not decay.

In this regard, development and industrialization of bioplastics are actively being carried out at home and abroad. Bioplastics are attracting attention as a material to replace petroleum-based raw materials, which are finite resources, and in particular, carbon neutral plant biomass is attracting great attention in that it does not increase the total amount of carbon dioxide on the earth. Bio plastics are largely divided into bio degradable plastics, oxo-biodegradable plastics, and bio based plastics. Among them, biodegradable catalysts or oxidative biodegradation additives are Oxidative biodegradable plastics further containing maize are plastics containing more than 25% of biomass derived from plants such as corn, plus a biodegradation catalyst or oxidative biodegradation agent. Oxidative biodegradable plastics are produced by photosynthesis of biomass, their raw material, and in this process, carbon dioxide in the atmosphere is used to suppress carbon emission, and it can reduce consumption of petroleum, a limited resource, and can be destroyed by microorganisms after disposal. It is an eco-friendly material that has been decomposed by chemical substances and is particularly attracting attention in terms of improving physical properties and maintaining price competitiveness.

Among bioplastics that are attracting attention as eco-friendly materials, biobased plastics with carbon-neutral plant biomass can overcome the problems of early biodegradation, deterioration of properties, low price competitiveness, and difficulties in recycling, which have been pointed out as disadvantages of existing biodegradable plastics. Industrialization is progressing rapidly.

However, the scope of use of bioplastics is still limited. Due to the increase in the cost of biomass, it is two to three times more expensive than conventional plastic products, and there are many problems to be solved, such as maintaining the physical properties and strength required for electronic products and industrial products. Also, in the case of starch among biomass, there is a problem of using food resources, so it is necessary to reduce the amount of starch.

Therefore, as a raw material for bio products, it is possible to impart high antibacterial and antiviral properties to molded biofilm products (eg, roll bags, sanitary bags, zipper bags, nonwoven fabrics, bags, air caps, pouches, wraps and sanitary gloves) and injection molded products. The development of new types of raw materials is required.

Korean Patent No. 10-1347584

The present invention is intended to solve the problems of the prior art, and it is a technical task to provide an antibacterial and antiviral raw material composition having excellent antibacterial and antiviral functions.

In addition, eco-friendly biofilm products (e.g., roll bags, sanitary bags, zipper bags, non-woven fabrics, bags, air caps, Pouches, wraps and sanitary gloves) and bio-injected products and bio-antibacterial and anti-viral raw material compositions for them are a technical task.

In order to solve the above technical problem, the present invention is a film product using an antibacterial and antiviral raw material including a metal derivative including copper and zinc, a natural product and a porous carrier, a roll bag, a hygiene bag, a zipper bag, a nonwoven fabric, an envelope, an air cap, Provided is a bio-antibacterial and anti-viral raw material composition for use in pouches, wraps, sanitary gloves and injection products.

The metal derivative containing copper is copper sulfide (Copper sulfide), auxin copper (Oxine Copper), copper acetylacetonate (Copper Acetylacetonate, Cu(C ₅ H ₇ O ₂ ) ₂ ) and hydrated copper carbonate (hydrated copper carbonate, Cu ₂ (OH) ₂ CO ₃ ) It may be characterized in that any one or more.

The metal derivative containing zinc is zinc alginate (Zinc Alginate), zinc pyrithione (Zinc Pyrithione), zinc gluconate (Zinc Gluconate, C ₁₂ H ₂₂ O ₁₄ Zn) and zinc acetylacetonate (Zinc Acetylacetonate, Zn ( It may be any one or more of C ₅ H ₇ O ₂ ) ₂ ).

The natural product may be characterized in that at least one of xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin, and Ecklonia cava extract.

The porous carrier may be characterized in that at least one of aluminum silicate, aluminum hydroxide, aluminate, basalt, pumice, diatomite, slaked stone, tuff, and clay.

The bio-antibacterial raw material composition according to an embodiment of the present invention may further include a biodegradation catalyst including acetyl carbamate metal salt, linoleic acid, sodium bicarbonate and stearic acid.

Another aspect of the present invention provides a film and an injection product using the bio-antibacterial and anti-viral raw material composition.

Bio-antibacterial and anti-viral film products (roll bags, sanitary bags, zipper bags, non-woven fabrics, bags, air caps, pouches, wraps and sanitary gloves) and bio-injected products manufactured according to the present invention have excellent antibacterial properties.

In addition, according to one embodiment of the present invention, it is possible to provide a bio-antibacterial and anti-viral raw material excellent in anti-bacterial and anti-viral functions.

In addition, according to the present invention, it is possible to provide a composition for biofilm and injection products for use in roll bags, sanitary bags, zipper bags, non-woven fabrics, bags, air caps, pouches, wraps and sanitary gloves with excellent antibacterial properties.

In addition, according to the present invention, it is possible to provide an oxidative biodegradable biofilm and an injection product having excellent mechanical properties such as tensile strength and elongation.

1 is a schematic diagram of a process for producing a bio-vinyl composition used in the present invention.
2 is a test analysis result showing the antimicrobial activity of the film according to the present invention.
3 is a test analysis result showing the antimicrobial activity of the film according to the present invention.
4 is a schematic diagram of impregnation of a porous carrier according to the present invention.
5 is a test analysis result showing the antiviral function of the film according to the present invention.

Hereinafter, the present invention will be described in more detail through Examples and Experimental Examples. However, these examples are only for helping the understanding of the present invention, and the scope of the present invention is not limited to these examples in any sense.

As used herein, the term "antibacterial" refers to bactericidal activity or inhibition of microbial growth in a microbial population, particularly Escherichia coli, Gram-positive, Gram-negative and/or methicillin-resistant Staphylococcus aureus. means

Also, the term “antiviral” refers to killing or inhibiting growth of a filterable pathogen.

The bio-antibacterial and anti-viral raw material composition for manufacturing a product according to an embodiment of the present invention includes a metal derivative including copper and zinc, a natural product, and a porous carrier.

According to an embodiment of the present invention, in order to have an excellent activity of the bio-antibacterial and anti-viral raw material composition, it includes a metal derivative including copper and zinc.

Among the metal derivatives containing copper and zinc, the metal derivative containing copper is copper sulfide, oxine copper, copper acetylacetonate (Copper Acetylacetonate, Cu(C ₅ H ₇ O ₂ ) ₂ ) And hydrated copper carbonate (hydrated copper carbonate, Cu ₂ (OH) ₂ CO ₃ ) It may be characterized in that any one or more.

Bio antibacterial, antiviral raw material composition according to an embodiment of the present invention is copper sulfide (Copper sulfide), auxin copper (Oxine Copper), copper acetylacetonate (Copper Acetylacetonate, Cu (C ₅ H ₇ O ₂ ) ₂ ) And By including any one or more metal derivatives among hydrated copper carbonate (Cu ₂ (OH) ₂ CO ₃ ), antibacterial and antiviral functions may be excellent.

Copper has an antibacterial action and is almost non-toxic to the human body. Metallic copper and several copper compounds may exhibit antibacterial properties.

Recently, a technique for obtaining an antibacterial effect by using an antimicrobial copper produced using copper has been used. The antibacterial copper has an antibacterial effect to remove bacteria. However, the antimicrobial activity of the antimicrobial copper occurs only in copper and copper alloy products having a copper content of at least 60%.

Therefore, there is a problem in that the manufacturing cost increases because a high content of copper must be used in order to produce biovinyl that can obtain an antibacterial effect using antibacterial copper.

In one embodiment of the present invention, it is preferable to use copper sulfide as the most excellent antimicrobial activity among the metal derivatives containing copper. When using the copper sulfide, E. coli and Staphylococcus It can exhibit excellent antibacterial performance.

On the other hand, according to an embodiment of the present invention, the bio-antibacterial and anti-viral raw material composition is auxin copper (Oxine Copper), copper acetylacetonate (Copper Acetylacetonate, Cu(C) instead of or in addition to the copper sulfide) ₅ H ₇ O ₂ ) ₂ ) and hydrated copper carbonate (Cu ₂ (OH) ₂ CO ₃ ) may include any one or more.

For this reason, the bio-antibacterial and anti-viral raw material composition may have excellent antibacterial properties.

The metal derivative containing copper may be included in an amount of 1% to 5% by weight based on 100% by weight of the bio-antibacterial and antiviral raw material composition.

The metal derivative containing copper may have excellent antibacterial properties by being included in an amount of 1% to 5% by weight based on 100% by weight of the bio-antibacterial and antiviral raw material composition.

If the metal derivative containing copper is less than 1% by weight based on 100% by weight of the bio-antibacterial and antiviral raw material composition, there is a problem that the antibacterial properties are not sufficient, and when it exceeds 5% by weight, excess copper There may be a problem in that the manufacturing cost increases because of the inclusion.

According to one embodiment of the present invention, the metal derivative containing zinc is zinc alginate (Zinc Alginate), zinc pyrithione (Zinc Pyrithione), zinc gluconate (Zinc Gluconate, C ₁₂ H ₂₂ O ₁₄ Zn) and zinc Acetylacetonate (Zinc Acetylacetonate, Zn(C ₅ H ₇ O ₂ ) ₂ ) It may be any one or more.

Bio antibacterial and antiviral raw material composition according to an embodiment of the present invention is zinc alginate (Zinc Alginate), zinc pyrithione (Zinc Pyrithione), zinc gluconate (Zinc Gluconate, C ₁₂ H ₂₂ O ₁₄ Zn) and zinc acetyl By including any one or more metal derivatives in acetonate (Zinc Acetylacetonate, Zn(C ₅ H ₇ O ₂ ) ₂ ), antibacterial activity may be excellent.

Zinc has an antibacterial action and is known to be non-toxic to the human body. In addition, it has the advantage of being inexpensive and having high antimicrobial activity against gram-positive and gram-negative bacteria.

Recently, a technique for obtaining an antibacterial effect by using ZnO as an antibacterial agent has been used. The antibacterial copper has an antibacterial effect to remove bacteria. However, when the ZnO is used, there is a need for a more excellent zinc-containing metal derivative, which has antibacterial properties against gram-positive bacteria and gram-negative bacteria, but can also have antibacterial properties against E. coli and Staphylococcus aureus.

In one embodiment of the present invention, it is preferable to use zinc alginate as the most excellent antibacterial activity among the metal derivatives containing zinc. When the zinc alginate is used, E. coli, Staphylococcus aureus, Gram It can exhibit excellent antibacterial performance against positive bacteria and gram negative bacteria.

On the other hand, according to an embodiment of the present invention, the bio-antibacterial, anti-viral raw material composition is zinc pyrithione instead of or in addition to the zinc alginate (Zinc Alginate), zinc gluconate (Zinc Gluconate, C ₁₂ ) H ₂₂ O ₁₄ Zn) and zinc acetylacetonate (Zinc Acetylacetonate, Zn(C ₅ H ₇ O ₂ ) ₂ ) may include any one or more.

For this reason, the bio-antibacterial and anti-viral raw material composition may have excellent antibacterial properties.

The metal derivative containing zinc may be included in an amount of 1 wt% to 5 wt% based on 100 wt% of the bio-antibacterial and antiviral raw material composition.

The metal derivative containing zinc may have excellent antibacterial properties by being included in an amount of 1% to 5% by weight based on 100% by weight of the bio-antibacterial raw material composition.

When the amount of the metal derivative containing zinc is less than 1% by weight based on 100% by weight of the bio-antibacterial and antiviral raw material composition, there is a problem that the antibacterial properties are not sufficient, and when it exceeds 5% by weight, excess zinc Because it has to be used, there may be a problem in that the manufacturing cost increases.

According to one embodiment of the present invention, the natural product included in the bio-antibacterial and antiviral raw material composition is xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin and Ecklonia cava extract. Any one or more may be further included.

By further including any one or more of the antibacterial and antiviral raw material xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin and Ecklonia cava extract, the bio antibacterial and antiviral raw material The composition can obtain a better antibacterial and antiviral effect.

Any one or more of xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin and Ecklonia cava extract contained in the antibacterial raw material is the bio-antibacterial, anti-viral raw material composition of the other It may be added by kneading with an antibacterial or antiviral raw material, or may be added through deposition or dyeing on the surface of the porous carrier.

In one embodiment of the present invention, it is preferable to use the xanthine oxidase, and when the xanthine oxidase is used, excellent antibacterial performance and and may have an antiviral effect against circovirus, bovine coronavirus, and influenza.

On the other hand, according to one embodiment of the present invention, the antibacterial and antiviral raw materials include xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin, and excellent antibacterial among extracts of Ecklonia cava , Green tea polyphenols and curcumin can be used at the same time to obtain an antiviral effect.

The green tea polyphenol (tea polyphenol) is a powder extracted and purified from green tea and dried, and contains epigallocatechin gallate ( EGCG , epigallocatechin-3-gallate) as a main component, which is known to inhibit the growth of cancer cells.

[Structure of EGCG]

The curcumin (curcumin) is an active ingredient of turmeric, an Indian curry spice, and Curcuma , a plant belonging to the ginger family of East India. longa It is a yellow spice containing polyphenols extracted from the roots of Linn (Zingiberaceae) and is a curcuminoid of turmeric. It has anti-tumor, anti-oxidation, anti-amyloid and anti-inflammatory action, and is known to inhibit DNA damage and lipid peroxidation caused by oxidation and to act as a scavenger of free radicals. In addition, when used at the same time as a natural polyphenol component such as green tea polyphenol, a synergistic effect on the antiviral function can be expected.

[Structure of curcumin]

On the other hand, according to one embodiment of the present invention, the antibacterial and antiviral raw materials include xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin, and excellent antibacterial among extracts of Ecklonia cava , lysozyme and lactoferrin can be used at the same time to obtain an antiviral effect.

The lysozyme generally has an antibacterial effect on Escherichia coli and Staphylococcus aureus, but in the case of Gram-negative bacteria, since the cell membrane is covered with an outer membrane, lysozyme alone does not exhibit antibacterial activity. However, when lactoferrin is added together with lysozyme, antibacterial and antiviral effects may be exhibited due to a synergistic effect with lactoferrin.

Any one or more of xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin and Ecklonia cava extract contained in the antibacterial and antiviral raw material is the bio antibacterial and antiviral raw material composition 100 Based on the weight%, it may be included in an amount of 1% to 5% by weight.

Any one or more of xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin, and Ecklonia cava extract contained in the antibacterial and antiviral raw material is the bio antibacterial and antiviral raw material composition 100 Based on the weight%, it can have excellent antibacterial and antiviral properties by being included in an amount of 1% to 5% by weight.

Any one or more of xanthine oxidase, green tea polyphenol, curcumin, lysozyme, lactoferrin and Ecklonia cava extract contained in the antibacterial and antiviral raw material is 100% by weight of the bio-antibacterial raw material composition On the other hand, if it is less than 1% by weight, there is a problem that antibacterial and antiviral properties are insufficient, and if it exceeds 5% by weight, there may be a problem in that the manufacturing cost increases due to the use of an excessive amount of raw materials.

In particular, according to one embodiment of the present invention, copper sulfide and zinc alginate are used in the porous aluminum silicate carrier, and in addition, green tea polyphenol, curcumin or lysozyme and lactoferrin are used. By simultaneously using E. coli, Staphylococcus aureus, it is possible to exhibit excellent antibacterial performance against gram-positive bacteria and gram-negative bacteria and antiviral effect against circovirus, bovine corona virus, and influenza pandemic.

The bio-antibacterial and anti-viral raw material composition according to an embodiment of the present invention may include a porous carrier together with a metal derivative including copper and zinc, and a natural product.

The porous carrier may be at least one selected from ceramics and metals, for example, aluminum silicate, aluminum hydroxide, aluminate, basalt, pumice, diatomite, calcined stone, tuff, and clay. can

In addition, as the porous carrier, any one or more of zeolite, silica, and zirconium phosphate may be used.

The porous carrier includes fine pores therein, and the fluid passes through the pores. The size or porosity of the pores of the porous carrier may be set differently depending on the environment in which the biovinyl of the present invention is used.

According to one embodiment of the present invention, in order for the bio-antibacterial and anti-viral raw material composition to have excellent anti-bacterial and anti-viral properties, the metal containing copper and zinc on the surface of the porous carrier by a method such as deposition or dyeing. The porous carrier may be prepared by coating the derivative or by kneading the metal derivative containing copper and zinc with the raw material of the porous carrier.

The bio antibacterial and antiviral raw material composition according to an embodiment of the present invention includes a porous carrier together with a metal derivative including copper and zinc as described above, thereby preventing harmful microorganisms and viruses introduced into the pores in the porous carrier from the copper and By sterilizing the metal derivative containing zinc, it is possible to exhibit an excellent and continuous antibacterial effect.

The porous carrier may be included in an amount of 1% to 5% by weight based on 100% by weight of the bio-antibacterial and antiviral raw material composition.

According to one embodiment of the present invention, the bio-antibacterial and anti-viral raw material composition may further include a biodegradation catalyst including acetyl carbamate metal salt, linoleic acid, sodium bicarbonate and stearic acid.

Specifically, the biodegradation catalyst is 25 to 50 parts by weight of biomass; 0.1 to 2 parts by weight of acetyl carbamate metal salt; 30 to 50 parts by weight of a binder resin; 1 to 5 parts by weight of an unsaturated fatty acid; 10 to 50 parts by weight of calcium carbonate; 1 to 5 parts by weight of sodium bicarbonate; and It may include; 1 to 5 parts by weight of stearic acid.

The biomass may be a carbon-neutral plant biomass, and may be biomass or a mixture containing organic carbon such as starch and cellulose having excellent processability and physical properties, and biomass by-products may be used. The higher the amount of biomass used, the better the carbon dioxide reduction effect is, but if too much is used, the physical properties deteriorate, so it is important to use an appropriate amount. It is preferred to add at least 25 parts by weight. In addition, when 50 parts by weight or more is used, there is a problem in that physical properties are deteriorated. Meanwhile, as the biomass, at least one selected from soybean oil, cottonseed oil, olive oil and sunflower oil may be used.

The acetyl carbamate metal salt is a catalyst added to shorten the complete decomposition period of polymer plastics to 1 to 5 years. Ferric acetyl carbamate, aluminum acetyl carbamate, manganese acetyl carbamate or a mixture thereof may be used. Preferably It is preferable to use 0.1 part by weight or more. When used in less than 0.1 parts by weight, there is a disadvantage in that the final biodegradation period becomes longer. In addition, when it exceeds 2 parts by weight, the effect is excellent, but there is a disadvantage in that the price increases. Ferric acetyl carbamate, aluminum acetyl carbamate, and manganese acetyl carbamate, which are acetyl carbamate metal salts, iron, aluminum, and manganese play a role in promoting photooxidation.

The binder resin may be linear low-density polyethylene, low-density polyethylene or polypropylene, preferably low-density polyethylene.

As the unsaturated fatty acid, polyene fatty acids having two or more double bonds, such as oleic acid, linoleic acid, arachidonic acid, and linolenic acid, may be used. Preferably, a mixture of alpha-linoleic acid and arachidonic acid may be used. Unsaturated fatty acids may contribute to polymer decomposition by performing an auto-oxidation function, and may be used in 1 to 5 parts by weight. When the amount is less than 1 part by weight, the automatic oxidative decomposition function is weak when decomposing the polymer, and when it exceeds 5 parts by weight, there is a possibility of lowering the polymer properties and increasing the price.

The calcium carbonate is an inorganic filler component added for the main purpose of strengthening the durability of biovinyl products, and has an average particle diameter (diameter) of 2 μm, a density of 1.5-2.0 g/cm ³ , a thermal decomposition temperature of 350° C., and a flash point (Flash point). ) of 400 ° C. water-insoluble calcium carbonate pellets, specifically, calcium carbonate of trade name “CALFIN 1152WA” or “OMYACARB ^® 1-SW” can be used. As such, by using a specific type of calcium carbonate with predetermined physical/chemical properties, the ventilation of the biovinyl product is improved, and the calorific value during incineration for disposal after use is reduced, thereby extending the service life of the incinerator. . This kind of calcium carbonate has a smaller particle size than general calcium carbonate, so workability and flowability can be improved.

The sodium bicarbonate is a component that promotes decomposition by helping the action of the plasticizer and metal salt of plant biomass, and may be used in 1 to 5 parts by weight. When less than 1 part by weight is used, the function may be weak, and when used in excess of 5 parts by weight, there is a problem that foaming may occur.

The stearic acid is a saturated fatty acid without a double bond and can perform a lubricant function such as waxes that facilitate productivity and flowability, and 1 to 5 parts by weight can be used. When using less than 1 part by weight, it is difficult to expect a function as a lubricant, and when using more than 5 parts by weight, residues may occur in the die discharge part.

As a whole, the mixture of the above components is used as a biodegradation catalyst in the present invention, so that it is possible to control the final biodegradation period of the biovinyl product. Meanwhile, the amount of raw material used in the composition is, for example, 30 parts by weight of biomass, 0.1 parts by weight of ferric acetyl carbamate, 0.3 parts by weight of aluminum acetyl carbamate, 40 parts by weight of binder resin, 5 parts by weight of unsaturated fatty acid, 20 parts by weight of calcium carbonate, and sodium bicarbonate. It may be included in a ratio of 2 parts by weight and 2.6 parts by weight of stearic acid.

As described above, a bio-antibacterial and anti-viral raw material composition can be implemented, and a film or an injection product can be formed by melt-extruding with an extruder using the manufactured bio anti-bacterial and anti-viral raw material and another plastic resin.

In addition, it is possible to manufacture a multi-layered biofilm product by co-extrusion with other plastic resins. Of course, the film to which various functions were provided is obtained by selection of the resin to be used. For example, it is of course possible to add functionality by using a film having excellent gas barrier properties or a film having excellent thermal adhesion properties.

As the antibacterial, antiviral and biodegradable additive, the first resin layer and another resin composition for film may be co-extruded to form a multilayer film. It goes without saying that the multilayer film can be formed in various forms, such as the first resin layer being located outside, inside, or in the middle. In the composition, it is preferable to use an olefin-based resin because the basic base resin is an olefin-based resin. It is preferable that the said olefin resin is a polyethylene resin. This is because the range of the softening point of polyethylene is wider than that of polypropylene and there is an advantage in terms of its structure. For use in packaging and film applications, the polyethylene resin may be more specific in order to improve processability and physical properties. Of course, it is also possible to use a mixture of polypropylene having a more crystalline structure depending on the required physical properties. The second resin layer is preferably in the form of a multilayer by co-extruding a linear low-density polyethylene resin and a low-density polyethylene resin.

In general, in the case of polyethylene film products, it is common to use linear low-density polyethylene, low-density polyethylene, polyethylene modifiers, antifogging agents, adhesives, and the like.

The composition for antibacterial, antiviral and oxidative biodegradable bio-vinyl according to the present invention can be obtained as a thin film through a series of extrusion and cooling processes. The mechanical properties preset in the composition step should be able to be implemented in the film, and accordingly, the thickness of the film needs to be set. The thickness of the antimicrobial and oxidative biodegradable bio-vinyl product according to the present invention may be preferably 10 to 20 μm, and more preferably 11 to 15 μm. Excellent physical properties suitable for the film may be exhibited in a thickness range of 11 to 15 μm.

The bio-antibacterial and anti-viral raw material is a component that imparts a strong and continuous anti-bacterial and anti-viral function to the bio anti-bacterial and anti-viral product according to the present invention. Use at least one or more. It is appropriate that the bio-antibacterial raw material is included in an amount of 3.0 to 10.0 parts by weight based on 100 parts by weight of the composition for bio-antibacterial products (antibacterial film, injection product).

The oxidation promoter is a component for accelerating the decomposition of polymer materials such as plastic resins and further promoting thermal decomposition, photolysis and autooxidative decomposition, and is selected from among behenic acid, formic acid, acetic acid, myristic acid, pentadecyl acid and caproic acid. at least one saturated fatty acid; and at least one unsaturated fatty acid selected from among acrylic acid, isocrotonic acid, undecylenic acid, arachidonic acid and propiolic acid having a melting point of 50° C. or less (eg, -50° C. to 50° C.) alone or 2 It can be used by mixing more than one species.

The plasticizer is a component that plasticizes plant biomass, and the higher the content of plant biomass in the final product, the less carbon dioxide emission is. cannot be added Therefore, plasticization of plants is important as an action to increase the content of insufficient plant biomass, and the transparency of biovinyl is also improved only when oils and fats are effectively plasticized. As the plasticizer, a vegetable plasticizer, triacetin (Triacetin) (the following structural formula) may be used. The triacetin is a natural-derived eco-friendly plasticizer contained in the seeds of the Evonymus europaea family. Because it is a colorless liquid, it does not adversely affect the transparency of the biovinyl product, and also performs some antifungal action to maintain the freshness of the product. It also has the advantage of contributing to the function.

[Structure of Triacetin]

As the polymer resin, an olefin-based resin such as PE, PP, or any polymer resin having excellent compatibility and dispersibility may be used, for example, a resin having amorphous properties such as LDPE, HDPE, LLDPE or high-transparency PP may be used. .

The bio-antibacterial and anti-viral raw material composition according to the present invention is provided in the form of a film (eg, 50 µm thick) through extrusion molding, etc. together with other raw material resins, and then undergoes necessary additional processing, various bio-antibacterial raw materials, especially antibacterial rollback , sanitary bags, zipper bags, non-woven fabrics, bags, air caps, pouches, wraps, and sanitary gloves. In addition, it may be provided in the form of a highly transparent bio-lab (eg, 15 μm thick) by additionally adding PVA and adhesive resin and molding it with a T-die type film machine.

The method for extruding the bio-antibacterial and anti-viral raw material composition according to the present invention is not particularly limited, and for example, the prepared composition is extruded using an extruder (eg, twin extruder) and then blow dried. . During extrusion, it is appropriate to carry out the reaction temperature through an extruder (eg, twin extruder) at a reaction temperature of 100 to 300° C. and a screw rotation speed of 300 to 800 RPM.

Hereinafter, the present invention will be described in more detail through Examples and Experimental Examples. However, these examples are only for helping the understanding of the present invention, and the scope of the present invention is not limited to these examples in any sense.

Example

(1) Preparation of biodegradation catalyst

PLA starch 30 parts by weight, ferric acetyl carbamate 0.1 parts by weight, aluminum acetyl carbamate 0.3 parts by weight, LDPE 40 parts by weight, linoleic acid 5 parts by weight, calcium carbonate 20 parts by weight, sodium bicarbonate 2 parts by weight, stearic acid 2.6 parts by weight Hensel mixer After putting it in the , mixing and drying at a rotation speed of 400 RPM until it reaches 80±5°C by the autogenous heat generated during high-temperature mixing, and then an extruder with a die diameter of 90 mm and L/D 40, which is a conventional extruder. Strands were extruded and produced at a screw temperature of 180 to 200 ° C. and a screw rotation speed of 500 RPM using an air-cooled or water-cooled method, and then cut with a pelletizer to prepare a pellet-shaped biodegradation catalyst.

(2) Preparation of bio-antibacterial and anti-viral raw material pellets

Referring to FIG. 1 , a porous aluminum silicate carrier, copper sulfide and zinc alginate and green tea polyphenol, curcumin (tea polyphenol), which is a bio-antibacterial and anti-viral raw material according to an embodiment of the present invention curcumin), biodegradation catalyst prepared in (1), plant biomass, lubricant (DA-01, Sungu Co. Ltd., Siheung, Korea), linear low-density polyethylene (LLDPE), behenic acid, triacetin (Triacetin), calcium carbonate (CALFIN 1152WA, average particle diameter 2 μm), wax (LC-102N, Lion chemtech, Daejeon, Korea) and organic acid (Citric acid, APS Co. Ltd., Ansan, Korea) (see Table 1) was put into a mixer, and then dried at 500 rpm and 100±10° C. for 50 minutes.

Then, using an extruder (JTE-58HS, tween extruder, JinsanPRM, Korea) (die diameter: 58 mm, roll ratio (length/diameter): 40, barrel temperature: 170°C, screw rotation speed: 800 rpm, screw 2 kneading zones, 2 reverse zones, 1 vacuum vent zone, 1 open vent zone) Strands were made, cooled using an air-cooled conveyor belt to prevent moisture reabsorption, and then cut to a size of 2-3 mm. A bio-antibacterial and anti-viral raw material pellet was prepared.

division content (wt%) matter plant biomass 10-15 Soybean oil, cottonseed oil, olive oil, sunflower oil antibacterial 4.0~10.0 Copper sulfide, zinc alginate, aluminum silicate, green tea polyphenol, curcumin biodegradation catalyst 0.1~1.0 Acetyl carbamate metal salt + α binder resin 70-80 LLDPE antioxidant 0.1~1.0 behenic acid plasticizer 2.5~7.5 triacetin calcium carbonate 1 to 10 CALFIN 1152WA lubricant 0.25~2.5 DA-01 wax 1-4 LC-102N organic acid 0.1~1.0 citric acid

(3) Production of bio antibacterial and antiviral films

As an example, after mixing the prepared bio-antibacterial raw material pellet, high-density polyethylene (HDPE) (7000F, Honam Petrochemical Corporation, Seoul, Korea) and linear low-density polyethylene (LLDPE) (UF315, Honam Petrochemical Corporation, Seoul, Korea) , an antibacterial and antiviral biovinyl film with a thickness of 50㎛ was manufactured by extruding with a film forming machine (BS-55, Boosung, Hanam, Korea) at a screw temperature of 100°C.

division content (wt%) Bio pellet M/B HDPE LLDPE Example 10 10 control - 90 10

Experimental example (antibacterial evaluation)

For antibacterial evaluation, the surfaces of the general vinyl film as a control group and the antibacterial and antiviral biovinyl film of Examples as the test group were prepared by sterilizing with 70% ethanol, and then 0.4 mL of the bacterial solution was collected and inoculated on the control and test group films. The inoculated specimen was cultured in an incubator and the cultured bacteria were recovered using the Stomacher pouch, 1 mL of the recovered bacterial solution was collected, applied to the medium, and cultured for 24 hours. Finally, the number of bacteria was measured using a colony counter. , As shown in Figure 1 below, it was confirmed that 99.9% of the antibacterial action was obtained by comparing the control group and the test group.

[Figure 1]

In addition, in order to check the effect of reducing bacteria by time, 1 mL of the recovered bacterial solution was collected and applied to the medium, incubated for 15 minutes, 30 minutes, 1 hour, and 2 hours before incubation (0 minutes), and then using a colony counter to count the number of bacteria. As a result of comparative measurement, it was confirmed that there was an effect of reducing bacteria by 50% based on 2 hours.

elapsed time before treatment after treatment 15 minutes 2.03 x 10 ⁶ CFU/ml 1.92 x 10 ⁶ CFU/ml 5.5% reduction 30 minutes 1.52 x 10 ⁶ CFU/ml 25% reduction 1 hours 1.36 x 10 ⁶ CFU/ml 33% reduction 2 hours 1.01 x 10 ⁶ CFU/ml 50% reduction

Experimental example ( antiviral evaluation)

For antiviral evaluation, the surface of the general vinyl film as the control group and the antibacterial and antiviral biovinyl film of Examples as the test group were prepared by sterilizing with 70% ethanol, and then 0.4 mL of the antigen solution was collected and placed on the control and test group films. inoculated. After culturing the inoculated specimen in an incubator, and recovering the cultured antigen using the Stomacher pouch, 1 mL of the recovered antigen is collected and applied to the medium. ), 30 minutes, 1 hour, 2 hours, and 4 hours of incubation, as a result of measuring the titer, the titer started to decrease after 1 hour, and it was confirmed that the titer decreased effect was further produced as time passed, and the results are shown in FIG. did.

Review the results

In the present invention, copper sulfide and zinc alginate are used in the porous aluminum silicate carrier, and in addition, green tea polyphenol, curcumin, or lysozyme and lactoferrin are used simultaneously, thereby E. coli, Staphylococcus aureus It can be seen that excellent antibacterial performance can be exhibited against cocci, gram-positive bacteria and gram-negative bacteria.

2 and 3, as a result of requesting a test analysis of the antibacterial and antiviral product manufactured according to an embodiment of the present invention to a test and analysis institute (SGS), E. coli and Staphylococcus (Staphylococcus) aureus), it was confirmed that the antibacterial efficiency was 99.9%.

In addition, it can be seen that the antibacterial and antiviral biovinyl according to the present invention has excellent antibacterial properties, biodegradability and mechanical properties compared to general plastics or conventional biodegradable plastics.

Referring to FIG. 5 , as a result of a virus titer change experiment with an antiviral product manufactured according to an embodiment of the present invention, the titer started to decrease after 1 hour, and it was confirmed that the titer reduction effect increased over time. .

The present invention described above is not limited to the above-described embodiment because various substitutions and changes can be made to those of ordinary skill in the art to which the present invention pertains without departing from the technical spirit of the present invention. .

Claims (6)

metal derivatives including copper and zinc; natural products; and
It includes a porous carrier;
Roll bags, sanitary bags, zipper bags, nonwoven fabrics, bags, air caps, pouches, wraps, sanitary gloves and Bio antibacterial and antiviral raw material composition for injection products.
According to claim 1,
The metal derivative containing copper is copper sulfide (Copper sulfide), auxin copper (Oxine Copper), copper acetylacetonate (Copper Acetylacetonate, Cu(C ₅ H ₇ O ₂ ) ₂ ) and hydrated copper carbonate (hydrated copper carbonate, Cu ₂ (OH) ₂ CO ₃ ) Characterized in that any one or more,
Bio antibacterial and antiviral raw material composition for use in film products using antibacterial and antiviral raw materials such as roll bags, sanitary bags, zipper bags, nonwoven fabrics, envelopes, air caps, pouches, wraps, sanitary gloves and injection products.
According to claim 1,
The metal derivative containing zinc is zinc alginate (Zinc Alginate), zinc pyrithione (Zinc Pyrithione), zinc gluconate (Zinc Gluconate, C ₁₂ H ₂₂ O ₁₄ Zn) and zinc acetylacetonate (Zinc Acetylacetonate, Zn ( C ₅ H ₇ O ₂ ) ₂ ) characterized in that any one or more of,
Bio antibacterial and antiviral raw material composition for use in film products using antibacterial and antiviral raw materials such as roll bags, sanitary bags, zipper bags, nonwoven fabrics, envelopes, air caps, pouches, wraps, sanitary gloves and injection products.
According to claim 1,
The natural product is characterized in that it further comprises any one or more of xanthine oxidase, lysozyme, lactoferrin and Ecklonia cava extract,
Bio antibacterial and antiviral raw material composition for use in film products using antibacterial and antiviral raw materials such as roll bags, sanitary bags, zipper bags, nonwoven fabrics, envelopes, air caps, pouches, wraps, sanitary gloves and injection products.
According to claim 1,
The porous carrier is characterized in that any one or more of aluminum silicate, aluminum hydroxide, aluminate, basalt, pumice, diatomite, slaked stone, tuff and clay,
Bio antibacterial and antiviral raw material composition for use in film products using antibacterial and antiviral raw materials such as roll bags, sanitary bags, zipper bags, nonwoven fabrics, envelopes, air caps, pouches, wraps, sanitary gloves and injection products.
According to any one of claims 1 to 5, antibacterial and antiviral raw materials for film products such as roll bags, sanitary bags, zipper bags, non-woven fabrics, bags, air caps, pouches, wraps, sanitary gloves and bio-antibacterial for injection products, Products using the antiviral raw material composition.

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