KR20120130619A - Method for manufacturing injection molding product using germicidal resin and injection molding product manufactured by the same - Google Patents

Abstract

PURPOSE: A manufacturing process of a molded article using a sterilizing resin and a molded article manufactured by the same are provided to use the molded article for various fields by having the molded article which contains a sterilizing master batch or a sterilizing compound. CONSTITUTION: A manufacturing process of a molded article using a sterilizing resin is as follows: A sterilizing material(10), which is one of a sterilizing master batch, a resin mixture, and a sterilizing compound, is prepared. The prepared sterilizing material and a molding resin are injected into the hopper of an injection molding machine. The injected sterilizing material and the molding resin are injection-molded.

Description

Process for manufacturing injection-molded products using sterilizing resin and manufactured by the same {Method for manufacturing injection molding product using germicidal resin and injection molding product manufactured by the same

The present invention relates to an injection product manufacturing process using a sterilizing resin and to an injection product manufactured by the above, and more particularly, it is applied to various fields by mixing the sterilizing material formed at a constant blending ratio with raw materials to produce an injection product. In addition, the present invention relates to an injection product manufacturing process using a sterilizing resin which can prevent infection due to bacteria by sterilizing and antibacterial action, and an injection product manufactured thereby.

If the history of mankind is divided into stone age, bronze age and iron age, the modern age can be called plastic age. In fact, without plastic, it is impossible to implement innovative products created by modern civilization. For example, semiconductor devices with pattern resolutions of several tens of nanometers, thin and colorful LCDs and organic EL displays, high-performance secondary batteries, ultra-fine fibers, functional fibers, and automotive interiors would not be feasible unless plastics were developed. The development of technology that led the 20th century is in line with the development of plastic technology.

The greatest advantage of plastics is to make it easier and cheaper to realize the required purpose and shape. In addition, high-performance plastics, developed through continuous improvement activities, can be used as engine parts for automobiles, withstanding hundreds of degrees of temperature, and have superior tensile strength and superior extension to wires. In addition, it may be used as a biomaterial and used as an artificial organ such as artificial joints, blood vessels, artificial skin, and the like.

Despite these advantages, plastics are not free from environmental and hygiene issues.

Many plastics that are used and thrown away are polluting the earth's environment. The development of degradable plastics is therefore a very important challenge in the future of plastics technology. The depletion of crude oil as a raw material for plastics is also one of the major crises facing the plastics industry.

It is also not free from hygiene issues. In fact, no material on earth is free from germs. Many bacteria live in our bodies, and bacteria live everywhere around us.

Bacteria have beneficial bacteria that are helpful to our bodies and are widely used. In the west, fermented foods such as cheese and yogurt have been made using bacteria called lactic acid bacteria for a long time. We have also made fermented foods such as kimchi, miso, and salted fermented with beneficial bacteria such as lactic acid bacteria. In addition, bacteria are widely used to produce useful substances such as antibiotics and vitamins, and are also used for biological restoration of environmental pollution such as wastewater treatment.

But germs are more harmful. Tuberculosis (Mycobacterium tuberculosis), Pest (Yersinia pestis), Anthrax (Bacillus anthracis), Cholera (Vibrio cholerae), Gastric ulcers (Helicobacter pylori), Pneumonia (Streptococcus pneumoniae), Typhoid (Salmonella typhi), Pathogenic mucotococcus Germs are always a threat to human health.

In mobile phones and toilets made of plastic, 5.4 bacteria were detected per cm 2. In addition, 170 bacteria per 1cm2 were found in dolls or strollers, which were mainly in contact with children, 31 times more than those in mobile phones and toilets. Such household items can be fatal to infants and the elderly with weak immunity.

Therefore, the majority of modern people are in close physical contact with plastics, either voluntarily or unintentionally, and there is a need for the development of technology for sterilizing plastic products to protect human health from serious diseases caused by bacteria. Therefore, to develop a sterilizing resin for manufacturing a sterilizing plastic product.

An object of the present invention for solving the above problems is to inject the sterilizing material formed at a constant blending ratio into the hopper of the injection molding machine to produce an injection molded product, which can be applied to various fields and at the same time sterilization and antibacterial action It relates to an injection molded product manufacturing process using a sterilizing resin that can prevent the infection due to and an injection molded product produced thereby.

In addition, an object of the present invention is injection molding by mixing a sterilization masterbatch or a sterilization compound in thermoplastic and thermosetting resins such as polyethylene, polypropylene and ABS resin, well-being home appliances, food packaging materials, food containers, baby products, cutting board cosmetic containers To provide an injection product manufacturing process using a sterilizing resin that can be widely used in a variety of fields, such as medical equipment, and an injection product produced thereby.

In addition, an object of the present invention is to provide an injection molded product manufacturing process using a sterilizing resin to create a hygienic environment in which bacteria inside the vehicle can not be inhabited when manufacturing the vehicle interior, and the injection molded product produced thereby.

In addition, an object of the present invention is to provide an injection product manufacturing process using a sterilizing resin that can increase the flame retardancy by applying a sterilization master batch or sterilization compound having a maximum heat resistance temperature of 250 ° C and an injection molded product produced thereby.

Injection product manufacturing process using a sterilizing resin according to the present invention for solving the above problems comprises the steps of (a) preparing a sterilizing material; (b) injecting the sterilizing material into a hopper of an injection molding machine; And (c) manufacturing the injection product by the injection molding machine with the sterilizing material injected into the hopper.

Preferably, in the step (a), the sterilizing material is characterized in that any one or more of sterilization master batch and sterilization compound.

Preferably, the sterilization masterbatch is mixed with the first resin and injected into the hopper, and the sterilization masterbatch is mixed with 80 to 99% of the first resin and 1 to 20% of the second sterilization component. It is done.

Preferably, the sterilizing compound is mixed with the second resin is injected into the hopper, the sterilizing compound is characterized in that the mixture of 90 to 99.7% of the second resin and 0.3 to 10% of the second sterilization component.

Preferably, the sterilizing material may be applied to any one of thermoplastic and thermosetting resins such as low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polyethylene (PE), polypropylene (PP), and ABS. Characterized in that it can.

Preferably, the sterilizing material is characterized in that the bactericidal Alexin is a natural sterilizing material extracted from propolis.

The injection molded product manufactured by the above-mentioned injection molded product manufacturing process is characterized by sterilizing general bacteria, food poisoning bacteria and viruses in the range of 1 to 300 seconds.

Preferably, the injection molded product is characterized in that it is applied to any one of household goods, mobile phone case and vehicle interior.

Preferably, the injection molded product manufactured by the injection molded product manufacturing process is characterized in that the effective life of the bactericidal efficacy against general bacteria, food poisoning bacteria and viruses has a range of at least 1.5 to 7 years.

The cold interior temperature of the vehicle interior material is characterized in that it has a range of at least -40 ℃, heat resistance temperature up to 250 ℃.

Preferably, the vehicle interior material is applied to any one of the vehicle interior material, such as a switch module, a mirror cover, an overhead console, a steering wheel, a gear transmission, and a module button.

Preferably, the household goods are characterized in that it is applied to any one of the home appliances for home appliances, food packaging materials, food containers, baby products, cutting board cosmetic containers.

As described above, the present invention can be applied to various fields as the sterilizing material prepared at a constant mixing ratio is injected into the hopper of the injection molding machine, and can be applied to various fields, and at the same time, it can prevent infection due to bactericidal and antibacterial effects. Effect occurs.

In addition, the present invention is injection molding by mixing a sterilization master batch or a sterilization compound into thermoplastic and thermosetting resins such as polyethylene, polypropylene and ABS resin, well-being home appliances, food packaging materials, food containers, baby products, cutting board cosmetic containers, medical Effects that can be widely used in various fields such as tools.

In addition, the present invention provides an injection product manufacturing process using the sterilizing resin to create a sanitary environment in which bacteria inside the vehicle can not live, when manufacturing the vehicle interior material and an injection product produced thereby.

In addition, the present invention has the effect of increasing the flame retardancy by applying a sterilization master batch or sterilization compound having a maximum heat resistance temperature of 250 ℃.

1 is a process for manufacturing an injection molded product using a sterilization master batch according to an embodiment of the present invention,
2 is a process for manufacturing an injection molded product using a sterilization compound according to an embodiment of the present invention,
Figure 3 is a photograph showing the vehicle interior manufactured by the injection molding manufacturing process using a sterilizing material according to an embodiment of the present invention,
Figure 4 is an official antimicrobial test photo by the method of measuring the inhibitory ring of the vehicle interior material manufactured by the vehicle interior material manufacturing process using the sterilizing resin according to an embodiment of the present invention,
5 is an antimicrobial test result for the specimen injected by mixing the sterilization compound in polyethylene,
Figure 6 is the antimicrobial test results for the specimen injected by mixing the sterile compound in polypropylene, and
Figure 7 is a comparison table showing the sterilization power and safety of the vehicle interior manufactured by the vehicle interior material manufacturing process using a sterilization master batch or sterilization compound according to an embodiment of the present invention.

With reference to the accompanying drawings, a preferred embodiment of the injection product manufacturing process using the sterilizing resin according to the present invention and the injection molded product 100 produced thereby. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be described based on the contents throughout this specification.

In the present invention, the term 'sterilization master batch' or 'sterilization compound' ensures thermal stability by inorganic encapsulation of BactosterAlexin, a natural antimicrobial material extracted from propolis throughout the specification, thereby providing excellent processability and antimicrobial activity. It is a material having. This 'sterilization masterbatch' is injection molding by mixing with thermoplastic and thermosetting resins such as polyethylene (PE), polypropylene (PP), and ABS resin (acrylonitrile butadiene styrene copolymer, ABS). Note that the present invention can be widely used in various fields such as food packaging materials, food containers, baby products, household goods manufacturing, cutting board cosmetic containers and medical equipment.

In addition, in the present invention, the term 'Inhibition Zone Method' refers to a medium that is poured into a curry through the entire specification, and then, the culture medium is poured uniformly to the surface and smeared on the surface of the sterilized filter paper discs. It is noted that the larger the diameter is, the more effective it is to measure the diameter of the low support after a certain period of time at a constant temperature.

Hereinafter, referring to FIGS. 1A, 1B, 2C, 2C, 2B, 2C and 2C, an injection molded product using sterilizing resin according to an embodiment of the present invention will be described. The process will be explained. Here, the overall manufacturing process is the same as shown in Figures 1 and 2 will be described in common, but in the portion where the sterilization material 10 is applied with reference to Figures 1 (b) and 2 (b). It will be described further.

An injection molded product manufacturing process using a sterilizing resin according to an embodiment of the present invention includes the steps of: (a) preparing a sterilizing material 10; (b) injecting the sterilizing material 10 into the hopper 21 of the injection molding machine 20; And (c) manufacturing the injection molded product 100 by the injection molding machine 20 from the sterilizing material 10 injected into the hopper 21.

In the first step (a), the first resin 11a and the first sterilization component 11b constituting the sterilization masterbatch 11 are mixed as shown in FIG. Here, the sterilization masterbatch 11 contains 80 to 90% of the first resin 11a of (a) and (b) of FIG. 1, and the second sterilization component 11b is to be mixed at 20 to 1%. Can be.

For example, 80% of the first resin 11a and 20% of the second sterilizing component 11b may be mixed, 99% of the first resin 11a and 1% of the second sterilizing component 11b. Although it may be mixed with, considering the aspect of the production cost through the actual manufacturing process, the ratio of the second sterilization component (11b) may be preferably 1 to 4%.

Meanwhile, as shown in FIG. 2A, the second resin 12a and the second sterilization component 12b are mixed to form the sterilization compound 12.

In step (a), any one of the sterilized material 10 or the sterilized compound 12 mixed at a constant ratio is selected to manufacture the injection molded product 100. At this time, the sterilization material 10 is produced by the sterilization master batch (11).

First, when the sterilization masterbatch 11 is applied, the sterilization masterbatch formed by mixing the first resin 11a and the first sterilization component 11b in step (a) as shown in FIG. (11) and the first resin 11a are prepared.

Meanwhile, when the sterilization compound 12 is applied, the sterilization compound 12 formed by mixing the second resin 12a and the second sterilization component 12b in step (a) as shown in FIG. ) Is ready.

The above-described sterilizing master batch 11 and the sterilizing compound 12 are thermoplastic such as low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polyethylene (PE), polypropylene (PP), ABS resin and the like. And thermosetting resins. The sterilization masterbatch 11 and the sterilization compound 20 may be preferably applied to bacteroster Alexin (natural bactericidal material extracted from propolis).

Next, as shown in (c) of FIG. 1, the sterilizing material 10 including the sterilizing master batch 11 and the first resin 11a is finally injected into the hopper 21 of the injection molding machine 20. The injection molded product 100 is manufactured by the injection molding machine 20. In this case, the sterilization compound 12 may be injected into the hopper 21 of the injection molding machine 20, as shown in FIG.

The injection molded product 100 manufactured according to the injection product manufacturing process using the sterilizing resin described above can sterilize general bacteria, food poisoning bacteria and viruses within the range of 1 to 300 seconds, and the validity of the sterilization effect is at least 1.5 years to maximum. Seven years is sufficient sterilization effect within this period. In addition, there is no destruction of components even at high temperatures, the cold-resistant temperature is at least -40 degrees, and the heat-resistant temperature is at most 250 degrees.

In addition, the injection molded product 100 may be applied to any one of household goods, a mobile phone case and a vehicle interior. In the case of household goods, it can be applied to well-being home appliances, food packaging materials, food containers, baby products, cutting board cosmetic containers and the like.

Figure 3 (a) to (f) is a photograph showing the vehicle interior manufactured by the vehicle interior manufacturing process using the sterilization master batch 11 or the sterilization compound 12 according to an embodiment of the present invention. Here, Figure 3 (a) is a switch module, Figure 3 (b) is a mirror cover, Figure 3 (c) is an overhead console, Figure 3 (d) a steering wheel, Figure 3 (e) The gear transmission and Fig. 3 (f) shows a module button.

The vehicle interior material manufactured by the above-described vehicle interior material manufacturing process includes a switch module (a), a mirror cover (b), an overhead console (c), a steering wheel (d), a gear transmission (e), and an audio or heater module button ( It can be applied to any one of f).

Figure 4 is an authorized antimicrobial test by the method of measuring the suppression ring of the vehicle interior of the injection molded product 100 manufactured by the injection product manufacturing process using the sterilization master batch 11 or the sterilization compound 20 according to an embodiment of the present invention The result is a photo.

More specifically, Figure 4 (a) is Staphylococcus Aureus, Inhibition Zone is 6mm, Figure 4 (b) is Escherichia coli, Inhibition Zone is 4mm .

4 (c) is Bacillus Subtilis, low support (Inhibition Zone) is 5mm, Figure 4 (d) is Bacillus Cereus (Bahibius Cereus), low support (Inhibition Zone) is 5mm.

Figure 4 (e) is Salmonella Typhimurium, Inhibition Zone is 10mm, Figure 4 (f) is Pseudomonas Aeruginosa, Inhibition Zone is 10mm.

Figure 4 (g) is pneumococcal (Klebsiella Pneumoniae), Inhibition Zone is 10mm, Figure 4 (h) is Micrococcus Luteus, Inhibition Zone is 4mm.

As shown in (a) to (h) of Figure 4 it was confirmed the effect of each of the bacteria according to an embodiment of the present invention.

5 (a), 5 (b) and 5 (c) show antibacterial test results for specimens in which a sterile compound 12 is mixed and injected into polyethylene. Here, the test subject is a specimen in which the polyurethane and the sterilization compound (12) are mixed in a ratio of 5: 5, and the test method is after injecting 0.9CC of general complex bacteria into 100CC of water and putting 5g of antimicrobial plastic specimen therein, 37 Bacterial sensitization is observed after shaking culture for 24 hours in the incubator of FIG.

At this time, in each resultant image, there is one bacterium in one grain, and the discoloration is a symptom appearing during sterilization due to bacterial characteristics. According to the observation result, it was confirmed that more than about 99.95% bacteria were reduced.

6 (a), 6 (b) and 6 (c) show antibacterial test results for specimens in which a sterile compound 12 is mixed with polypropylene and injected. Here, the test subject is a specimen in which the polypropylene and the sterilizing compound 12 are mixed at a ratio of 5: 5, and the test method is the same as the test method of FIG. First, inject 0.9CC of general complex bacteria into 100CC of water, put 5g of antimicrobial plastic specimens in it, and observe the bacterial sensitization after shaking culture for 24 hours in an incubator at 37 degrees.

At this time, in each resultant image, there is one bacterium in one grain, and the discoloration is a symptom appearing during sterilization due to bacterial characteristics. According to the observation result, it was confirmed that more than about 99.95% bacteria were reduced.

7 is a comparative table showing the sterilization power and safety of the vehicle interior 100 prepared by the injection molding process using the sterilization master batch 11 or the sterilization compound 12 according to an embodiment of the present invention.

As shown in the figure, fungicides and antibacterial agents include pesticides, lacs, ozone, silver nano, phytoncide, inorganic antimicrobial agents, samon extracts, and bactosteralexins applied to the present invention. It was high, but in terms of safety, it was lower than phytoncide, inorganic antimicrobial agent, silver nano, and grapefruit extract.

In other words, in the bactericidal power and safety of the evaluation factors, pesticides, lacs, and ozone showed high bactericidal power, and phytoncide, inorganic antimicrobial agent, silver nano, and grapefruit extract showed high safety, but the bactericidal power and safety values were balanced. Has been shown to be bactosterlexin. Therefore, the injection molded product 100 according to the present invention can be expected to have higher performance than other disinfectants when considered in terms of sterilization power and safety.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the present invention can be changed.

10: sterilization material
11: sterilization masterbatch
11a: first resin
11b: first sterilization component
12: Sterilization Compound
12a: second resin
12b: second sterilization component
20: injection molding machine
21: Hopper
100: injection molded product

Claims (11)

(a) preparing a sterilizing material;
(b) injecting the sterilizing material into an injection resin and a hopper of an injection molding machine; And
(C) the step of manufacturing an injection molded product by the injection molding machine the sterilizing material and the injection resin injected into the hopper;
Injection product manufacturing process.
The method of claim 1,
In the step (a), the sterilizing material is characterized in that any one or more of the mixture or sterilization compound of the sterilization master batch and injection resin,
Injection product manufacturing process.
The method of claim 2,
The sterilization masterbatch is mixed with the first resin and injected into the hopper,
The sterilization masterbatch is characterized in that the mixture of 80 to 99% of the first resin and 1 to 20% of the second sterilization component,
Injection product manufacturing process. The method of claim 2,
The sterilizing compound is injected into the hopper,
The sterilization compound is characterized in that the mixture of 90 ~ 99.7% of the second resin and 0.3 ~ 10% of the second sterilization component,
Injection product manufacturing process.
The method of claim 2,
The sterilizing material may be applied to any one of thermoplastic and thermosetting resins such as low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE), polyethylene (PE), polypropylene (PP), and ABS resin. Characterized by
Injection product manufacturing process.
The method of claim 2,
The sterilizing material is a bactericidal Alexin which is a natural sterilizing material extracted from propolis,
Injection product manufacturing process.
The injection molded product manufactured by the injection molded product manufacturing process of claim 1,
To sterilize the general bacteria, food poisoning bacteria and viruses in the range of 1 to 300 seconds,
Injection product.
An injection molded product manufactured by the injection molded product manufacturing process according to claim 1,
The bactericidal potency of general bacteria, food poisoning bacteria and viruses has a shelf life of at least 1.5 to 7 years,
Injection product.
The method of claim 7, wherein
The injection molded product, characterized in that applied to any one of household goods, mobile phone case and vehicle interior material,
Injection product.
The method of claim 9,
The vehicle interior material is applied to any one of the vehicle interior materials, such as a switch module, a mirror cover, an overhead console, a steering wheel, a gear transmission, and a module button,
Injection product.
The method of claim 8,
The household goods, characterized in that applied to any one of the home appliances for home appliances, food packaging materials, food containers, baby supplies, cutting board cosmetic containers,
Injection product.

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