KR102057334B1 - Anti-bacteria type plastic container with pearl pigment - Google Patents

Abstract

The present invention relates to an antibacterial type plastic container with a pearl pigment and, more specifically, to an antibacterial type plastic container with a pearl pigment, which can manufacture a plastic container with an application of a pearl pigment to provide a transparent, semi-transparent, or opaque container with a pearl texture, thereby increasing an aesthetic and luxurious appearance. Accordingly, value of a product can be increased. Moreover, an antibacterial addition agent in which a mineral material is mixed with a hydroxyl radical generative composition or a super oxide generative composition is used when manufacturing the plastic container to maintain freshness of food stored in the container and increase preservation period of the food.

Description

Antimicrobial Plastic Container with Pearl Pigment {ANTI-BACTERIA TYPE PLASTIC CONTAINER WITH PEARL PIGMENT}

According to the present invention, as the container is manufactured by applying a pearl pigment in the manufacture of the plastic container, the pearl texture is given to the container made of transparent, translucent or opaque to improve the appearance beauty and luxury and thereby the value of the product to phosphorus. In addition, the present invention relates to a plastic container capable of improving the freshness maintenance and shelf life of the food stored in the container by applying an antimicrobial additive.

In general, plastic containers are widely used as containers for storing various foods. It is made of a plastic material has advantages such as light weight, durability and ease of handling compared to a common porcelain or glass container.

However, in the case of the conventional plastic container has a simple appearance consisting of only transparent, translucent or opaque, there is a problem that the value of the product is lowered, such as the consumer is recognized that the plastic container is not luxurious and inexpensive.

In addition, as the food and air contact frequently open and close the container, there is a problem that the food is decayed due to various bacteria, fungi, bacteria, etc. already present therein, and various strains introduced from the outside during storage.

In order to solve this problem, Patent Documents 1 and 2 attempted to improve food preservation function by applying materials such as ganbanite or jade to plastic containers. However, when these minerals are used alone, their purpose is to maintain freshness. We could not achieve this, and we could not solve the problem of deteriorating product value due to the simple appearance.

Therefore, Patent Documents 3 and 4, including ceramic materials or silver-based antimicrobial agents in plastic containers, tried to improve the freshness maintenance and preservation period of foods, but this was not enough to satisfy consumers. It was not possible to solve the problem of deterioration of product value by appearance.

Patent Document 1: Republic of Korea Patent Publication No. 10-0254945 "Synthetic resin product containing elvan rock and its manufacturing method" Patent Document 2: Republic of Korea Patent Publication No. 10-2000-0020972 "Plastic product excellent in food preservation ability" Patent Document 3: Republic of Korea Patent Publication No. 10-2001-0104010 "Antibacterial resin composition with excellent food freshness" Patent Document 4: Republic of Korea Patent Publication No. 10-2000-0020972 "Plastic product excellent in food preservation ability"

The present invention is to solve the above-described problems, according to the production of a container by applying a pearl pigment in the manufacture of a plastic container, the pearl texture is given to the container made of transparent, translucent or opaque to improve the appearance beauty and luxury This aims to improve the value of the product to the phosphorus.

In another aspect, the present invention is to improve the freshness retention and shelf life of the food stored in the container by applying an antimicrobial additive mixed with a hydroxy radical generating composition or a super oxide generating composition and minerals in the manufacture of a plastic container. do.

In the plastic container, the antimicrobial plastic container to which the pearl pigment is applied is characterized in that a pearl pigment is included in the production of the container.

Here, the antimicrobial plastic container to which the pearl pigment is applied may further include an antimicrobial additive.

More specifically, the antimicrobial plastic container to which the pearl pigment is applied may be made to include 0.1 to 50 parts by weight of pearl pigment and 0.1 to 30 parts by weight of antimicrobial additive, based on 100 parts by weight of the synthetic resin.

Here, the antimicrobial additive may be made by mixing 1 to 30 parts by weight of the hydroxy radical generating composition or the super oxide generating composition with respect to 100 parts by weight of the mineral.

According to the present invention, the pearl texture is applied to the container according to the application of the pearl pigment, thereby improving the beauty and luxury of the appearance, thereby improving the value of the product to the phosphorus, and also the antimicrobial additives stored in the container It is effective in improving the freshness and preservation period of food.

1 is a schematic diagram showing the structure of the hydroxy radical generating composition contained in the antimicrobial additive according to an embodiment of the present invention
FIG. 2 is a flowchart illustrating a method of preparing the hydroxy radical generating composition of FIG. 1.
Figure 3 is a schematic diagram showing the structure of the super oxide generating composition contained in the antimicrobial additive according to another embodiment of the present invention
4 is a flowchart illustrating a method of preparing the super oxide generating composition of FIG. 3.

The present invention for achieving the above effect relates to an antimicrobial plastic container to which the pearl pigment is applied, and only the parts necessary for understanding the technical configuration of the present invention are described, and the description of other parts will not disturb the gist of the present invention. Note that it will be omitted.

Hereinafter, the antimicrobial plastic container to which the pearl pigment according to the present invention is applied will be described in detail.

The antimicrobial plastic container to which the pearl pigment according to the present invention is applied is characterized in that the pearl pigment is included in the manufacture of the container.

The pearl pigment is a pigment that realizes a subtle glint according to the direction of light and is usually made of pearl, but in addition to this, various materials for implementing pearl texture such as metal powder or mineral powder can be applied. In addition, the color of the pearl pigment is also possible to apply a variety of colors, such as silver, gold.

In addition, the pearl pigment may be applied in the form of a master batch (battery), pellets, chips, etc., or may be applied in a powder state, but is not necessarily limited to this, and realizes a pearl texture of a shape desired by a consumer for a plastic container. Various addition forms are possible within the scope.

That is, according to the present invention, when the container is manufactured by applying the pearl pigment in the manufacture of the plastic container, the pearl texture is given to the container made of transparent, translucent, or opaque to enhance the appearance beauty and luxury, thereby improving the value of the product to phosphorus. Can be improved.

On the other hand, the present invention can be applied to the antimicrobial additives to improve the freshness and the shelf life of the food stored in the container in addition to the above function.

More specifically, the antimicrobial plastic container to which the pearl pigment is applied comprises 0.1 to 50 parts by weight of pearl pigment and 0.1 to 30 parts by weight of antimicrobial additive, based on 100 parts by weight of the synthetic resin.

In addition, various known additives for forming a container may be used, which may be variable according to the use or use environment of the container, and thus the detailed description thereof will be omitted, and various known additives may be applied as described above. .

The synthetic resin is a base substrate for constituting the container, polyethylene, polyester, polyvinyl chloride, polypropylene (plypropelene), amino resin, acrylic polymer (Acryl polymer) It is possible to apply various synthetic resins, without being limited to specific synthetic resins such as vinyl acetate, polyamide, or polyethylene terephtalate.

On the other hand, when the content of the pearl pigment is less than 0.1 parts by weight, there is a fear that the pearl texture is inadequate, and when more than 50 parts by weight, the physical properties of the container may be lowered.

And the antimicrobial additive is a hydroxy radical generating composition (Domestic Patent Publication No. 10-1292009) or a super oxide generating composition (Domestic Patent Publication No. 10-1334145) registered and registered by the applicant of the present invention to the mineral material It applies what consists of mixing.

Specifically, 1 to 30 parts by weight of the hydroxy radical generating composition or the super oxide generating composition is mixed with 100 parts by weight of the mineral.

In this case, when the content of the hydroxy radical generating composition or the super oxide generating composition is less than 1 part by weight, there is a fear that the antimicrobial activity is insufficient, if it exceeds 30 parts by weight, the efficiency of improving the function compared to the input amount is not economical There is concern.

On the other hand, the mineral can be applied to a variety of known minerals, in the present invention, in one embodiment, is used alone or in combination of two or more of zeolite, clay, kaolin, illite or calcium carbonate.

In addition, the hydroxy radical generating composition and the super oxide generating composition is to use a composition registered and registered by the applicant of the present invention as described above, the first hydroxy radical generating composition is shown in Figure 1, The shell 200 having the transition metal compound 21 fixed to the surface of the second silica precursor 20 is coated on the outer surface of the core 100 on which the superoxide generating compound 11 is fixed to the silica precursor 10. It is configured.

Specifically, as shown in FIG. 2, the core forming step (S100) of fixing the superoxide generating compound to the surface of the first silica precursor and the shell of the transition metal compound fixed to the surface of the second silica precursor are performed on the core. It is manufactured through a shell forming step (S200) to coat the outer surface of the.

The core forming step (S100) is a step of forming a core that generates superoxide, and is dispersed (S110) by mixing 30-40 parts by weight of the first silica precursor with respect to 100 parts by weight of distilled water, and separately, 100 parts by weight of distilled water. 5 parts by weight to 10 parts by weight of the superoxide generating compound were dissolved (S120), and 100 parts by weight of the dispersion in which the first silica precursor of step S110 was dispersed were dissolved in an aqueous solution 10 in which the superoxide generating compound of step S120 was dissolved. The core is formed by dispersing (S130) ˜30 parts by weight.

Here, the first silica precursor uses a silica sol as a precursor to which the superoxide generating compound is attached, and the silica sol has water of 20 to 40 wt% of powder silicon oxide (SiO ₂ ) having a particle size of 0.2 to 1.0 μm. Use a mixture of ~ 80% by weight. In this case, when the particle size of the powdered silicon oxide is less than 0.2㎛ or the content is less than 20% by weight, there is a fear that it does not function properly as a precursor to which the superoxide generating compound is attached, the particle size of the powdered silicon oxide If it exceeds 1.0 μm or its content exceeds 40 wt%, there is a fear that the effect of generating hydroxy radicals is rather insufficient by the precursor.

On the other hand, when the content of the first silica precursor is less than 30 parts by weight with respect to 100 parts by weight of distilled water, there is a fear that the reaction yield is lowered because the superoxide-producing compound is not properly reacted with the dissolved aqueous solution, and may exceed 40 parts by weight. In this case, there is a fear that the first silica precursor cannot be properly dispersed in the distilled water itself.

In addition, the superoxide generating compound is a compound capable of producing superoxide, which may be used alone or in combination of two or more of silver nitrate (AgNO ₃ ), gold chloride (AuCl ₃ , HAuCl ₄ ) or platinum chloride (PtCl ₄ ). And, if the content of the superoxide generating compound is less than 5 parts by weight, based on 100 parts by weight of distilled water, there is a fear that the generation effect of hydroxy radicals is inadequate, and when it exceeds 10 parts by weight, the superoxide generating compound is distilled water itself There is a possibility that it may not be distributed properly.

And, if the content of the aqueous solution in which the superoxide generating compound is dissolved is less than 10 parts by weight based on 100 parts by weight of the dispersion in which the first silica precursor is dispersed, there is a fear that the generation effect of hydroxy radicals may be insignificant. When the amount is exceeded, the first silica precursor may not react properly with each other and the reaction yield may decrease.

The shell forming step (S200) is a step of forming a shell for generating hydroxy radicals by reacting with a superoxide generated from the core, and dissolving 5-10 parts by weight of a transition metal compound based on 100 parts by weight of distilled water ( S210) and, based on 100 parts by weight of the core prepared by the step S130, by dispersing (S220) by adding 1 to 5 parts by weight of an aqueous solution in which the transition metal compound of the step S210 is dissolved (S220), and is manufactured through the step S220. To 100 parts by weight of the dispersion, 120 to 150 parts by weight of the second silica precursor is added and reacted to form a shell by gelling (S230).

Here, the transition metal compound is a transition metal having an oxidizing power, and is added for the purpose of generating hydroxy radicals, preferably an iron salt compound or a copper salt compound, and specifically, a divalent iron salt (FeSO ₄ ) and a trivalent iron salt ( FeCl ₃ ), divalent copper salt (CuSO ₄ ), trivalent copper salt (bis (hydrogenperiodato) cuprate (III) [K ₅ Cu (HIO ₆ ) ₂ ], and the like are used.

On the other hand, when the content of the transition metal compound as described above is less than 5 parts by weight with respect to 100 parts by weight of distilled water, there is a fear that the effect of the generation of hydroxy radicals is inadequate, when it exceeds 10 parts by weight, the transition metal compound is distilled water itself There is a possibility that it may not be distributed properly.

In addition, when the content of the aqueous solution in which the transition metal compound is dissolved is less than 1 part by weight with respect to 100 parts by weight of the core manufactured through S130, there is a fear that the effect of generating hydroxy radicals is insufficient, and when it exceeds 5 parts by weight. In addition, the reaction yield may be lowered because it does not react properly with the superoxide generated from the core.

In addition, the second silica precursor is a precursor to which the transition metal compound is attached, and tetraethoxy ortho silicate (TEOS), methyl trimethoxy silane (MTMS), tetramethoxy orthosilicate (TMOS), tetrapropoxy Orthosilicate (TPOS), Tetrabutoxy orthosilicate (TBOS), Tetra pentoxy orthosilicate (TPEOS) Tetra (methylethylketooxymo) silane, Vinyloxymosilane (VOS), Phenyl tris (butanone oxime) Silane (POS), methyloxymosilane (MOS) may be used alone or in combination of two or more in an appropriate composition ratio, the content of the second silica precursor is 120 parts by weight based on 100 parts by weight of the dispersion prepared through the step S220 If less than a portion, there is a fear that the transition metal compound may not be properly coated on the outer surface of the core, if more than 150 parts by weight, due to the reaction of the superoxide and the transition metal compound There exists a possibility that the formation effect of a hydroxyl radical may be inadequate.

Meanwhile, in the case of the second silica precursor, it is most preferable to make 20-40 parts by weight of tetraethoxysilane (TEOS) and 100-110 parts by weight of methyltrimethoxysilane (MTMS) among the equivalents described above.

As described above, when the second silica precursor is composed of TEOS and MTMS, when the amount of TEOS is less than 20 parts by weight, the transition metal compound may not be properly coated on the outer surface of the core. There is a fear that the effect of generating hydroxy radicals due to the reaction between the oxide and the transition metal compound may be insignificant.

In addition, when the amount of MTMS is less than 100 parts by weight, there is a fear that the transition metal compound may not be properly coated on the outer surface of the core, if it exceeds 110 parts by weight of the hydroxy radicals by the reaction of the superoxide and the transition metal compound There is a possibility that the effect of generation is insignificant.

Next, as shown in FIG. 3, the super oxide generating composition includes a second silica precursor on an outer surface of the core 100 'to which the super oxide generating compound 11' is fixed to the first silica precursor 10 '. The shell 200 'on which the calcium compound 21' is fixed is coated on the surface of the 20 '.

Specifically, as shown in FIG. 4, the core forming step (S100 ′) of fixing the superoxide generating compound to the surface of the first silica precursor and the shell of the calcium compound fixed to the surface of the second silica precursor are performed on the core. It is configured to include a shell forming step (S200 ') for coating on the outer surface.

The core forming step (S100 ′) is a step of forming a core that generates superoxide, and is dispersed (S110 ′) by mixing 30 to 40 parts by weight of the first silica precursor with respect to 100 parts by weight of distilled water, and then separately, and distilled water. To 100 parts by weight, 5 to 10 parts by weight of the superoxide generating compound is dissolved (S120 '), and the superoxide generating compound of the step S120' is used based on 100 parts by weight of the dispersion in which the first silica precursor of step S110 'is dispersed. 10-30 parts by weight of the dissolved aqueous solution is added and dispersed (S130 ') to form a core.

Here, the first silica precursor uses a silica sol as a precursor to which the superoxide generating compound is attached, and the silica sol has water of 20 to 40 wt% of powder silicon oxide (SiO ₂ ) having a particle size of 0.2 to 1.0 μm. Use a mixture of ~ 80% by weight. In this case, when the particle size of the powdered silicon oxide is less than 0.2㎛ or the content is less than 20% by weight, there is a fear that it does not function properly as a precursor to which the superoxide generating compound is attached, the particle size of the powdered silicon oxide If it exceeds 1.0 μm or the content exceeds 40 wt%, there is a fear that the effect of super oxide production is rather insufficient by the precursor.

On the other hand, when the content of the first silica precursor is less than 30 parts by weight with respect to 100 parts by weight of distilled water, there is a fear that the reaction yield is lowered because the superoxide-producing compound is not properly reacted with the dissolved aqueous solution, and may exceed 40 parts by weight. In this case, there is a fear that the first silica precursor cannot be properly dispersed in the distilled water itself.

In addition, the superoxide generating compound is a compound capable of producing superoxide, which may be used alone or in combination of two or more of silver nitrate (AgNO ₃ ), gold chloride (AuCl ₃ , HAuCl ₄ ) or platinum chloride (PtCl ₄ ). And, if the content of the superoxide generating compound is less than 5 parts by weight, based on 100 parts by weight of distilled water, there is a fear that the production effect of the super oxide is inadequate, when it exceeds 10 parts by weight, the superoxide generating compound is distilled water itself It may not be distributed properly.

And, if the content of the aqueous solution in which the superoxide generating compound is dissolved is less than 10 parts by weight based on 100 parts by weight of the dispersion in which the first silica precursor is dispersed, there is a fear that the effect of producing super oxide may be insufficient, and 30 parts by weight If it exceeds, it may not react properly with the first silica precursor, which may lower the reaction yield.

The shell forming step (S200 ') is a step of forming a shell for extending the half-life of the superoxide by reacting with the superoxide generated from the core, and dissolving 5 to 10 parts by weight of the calcium compound with respect to 100 parts by weight of distilled water. (S210 '), and dispersing (S220') by adding 1 to 5 parts by weight of an aqueous solution in which the calcium compound of step S210 'is dissolved, based on 100 parts by weight of the core manufactured through S130', and then dispersing (S220 '). With respect to 100 parts by weight of the dispersion prepared through the step, 120 to 150 parts by weight of the second silica precursor is added and reacted to form a shell by gelling (S230 ').

Here, the calcium compound is added to the purpose of delaying the disappearance of the superoxide by reacting with the superoxide generated from the core to extend the half-life of the superoxide, calcium oxide or calcium hydroxyoxide may be used.

On the other hand, when the content of the calcium compound is less than 5 parts by weight with respect to 100 parts by weight of distilled water, the effect may be insignificant. If it exceeds 10 parts by weight, the calcium compound may not be properly dispersed in the distilled water itself. There is.

In addition, when the content of the aqueous solution in which the calcium compound is dissolved is less than 1 part by weight based on 100 parts by weight of the core manufactured through S130 ', the effect of the calcium compound may be insignificant. In addition, the reaction yield may be lowered because it does not react properly with the superoxide generated from the core.

In addition, the second silica precursor is a precursor to which the calcium compound is attached, tetraethoxy orthosilicate (TEOS), methyl trimethoxy silane (MTMS), tetramethoxy orthosilicate (TMOS), tetrapropoxyor Sodium silicate (TPOS), tetrabutoxy orthosilicate (TBOS), tetrapentoxy orthosilicate (TPEOS) tetra (methylethylketooxymo) silane, vinyloxymosilane (VOS), phenyl tris (butanone oxime) silane (POS), methyloxymosilane (MOS) may be used alone or in combination of two or more in an appropriate composition ratio, the content of the second silica precursor 120 parts by weight based on 100 parts by weight of the dispersion prepared through the step S220 ' If less than 2 parts, the calcium compound may not be properly coated on the outer surface of the core, and if it exceeds 150 parts by weight, super oxide by the reaction of the super oxide and the calcium compound There is a possibility that the half-life extension effect will be insufficient.

Meanwhile, in the case of the second silica precursor, it is most preferable to make 20-40 parts by weight of tetraethoxysilane (TEOS) and 100-110 parts by weight of methyltrimethoxysilane (MTMS) among the equivalents described above.

When the second silica precursor is composed of TEOS and MTMS as described above, when the amount of TEOS is less than 20 parts by weight, there is a fear that the calcium compound may not be properly coated on the outer surface of the core, when exceeding 40 parts by weight, superoxide There is a fear that the effect of extending the superoxide half-life due to the reaction of and calcium compounds may be insufficient.

In addition, when the amount of MTMS is less than 100 parts by weight, there is a risk that the calcium compound may not be properly coated on the outer surface of the core, and when it exceeds 110 parts by weight, the superoxide half-life is extended by the reaction of the superoxide and the calcium compound. There is a risk of incompleteness.

And when the content of the antimicrobial additive made as described above is less than 0.1 parts by weight there is a fear that the antimicrobial properties for the plastic container is insufficient, if the content exceeds 30 parts by weight there is a fear that the physical properties of the container.

Hereinafter, the present invention will be described in more detail with reference to the following examples, which are not intended to limit the present invention.

1. Preparation of hydroxy radical generating composition and super oxide generating composition

(Manufacture example 1)

In the core forming step (S100), 30 parts by weight of silica sol mixed with 80 wt% of water with 20 wt% of 0.2 μm particle size powder silicon oxide (SiO ₂ ) as the first silica precursor was mixed with 100 parts by weight of distilled water. After dispersion (S110), separately, 10 parts by weight of silver nitrate (AgNO ₃ ) is dissolved (S120) with respect to 100 parts by weight of distilled water, and 100 parts by weight of the dispersion in which the first silica precursor of step S110 is dispersed. With respect to, by forming a core by dispersing (S130) 10 parts by weight of an aqueous solution in which the superoxide-generating compound of step S120 is dissolved (S130), as a shell forming step (S200), with respect to 100 parts by weight of distilled water, as a transition metal compound After dissolving 5 parts by weight of ferrous sulfate heptahydrate (S210), and dispersing (S220) by adding 1 part by weight of an aqueous solution in which the ferrous sulfate heptahydrate was dissolved in step S210 based on 100 parts by weight of the core. , To 100 parts by weight of the dispersion prepared in step S220, 20 parts by weight of tetraethoxysilane (TEOS) and 100 parts by weight of MTMS (methyltrimethoxysilane) were added and reacted to gel (S230), and gelated through S230. Filtered compound was prepared to produce a hydroxy radical generating composition.

(Manufacture example 2)

In the core forming step (S100 ′), 40 parts by weight of silica sol, in which 60 wt% of water was mixed with 40 wt% of 1.0 μm particle size silicon oxide (SiO ₂ ), was used as the first silica precursor. After dispersion (S110 '), separately, 5 parts by weight of silver nitrate (AgNO ₃ ) is dissolved (S120') with respect to 100 parts by weight of distilled water as a superoxide generating compound, and the dispersion solution in which the first silica precursor of step S110 'is dispersed. 100 parts by weight of the aqueous solution in which the superoxide-generating compound in step S120 'is dissolved by dispersing (S130') to form a core, followed by shell formation (S200 '), in 100 parts by weight of distilled water. With respect to the calcium compound, 5 parts by weight of calcium oxide was dissolved (S210 '), and 5 parts by weight of the aqueous solution in which the calcium hydroxy oxide was dissolved in step S210 was dispersed and dispersed (S220') based on 100 parts by weight of the core. In addition, 40 parts by weight of tetramethoxy orthosilicate (TMOS) and 110 parts by weight of tetra (methylethylketooxymo) silane were added and reacted to 100 parts by weight of the dispersion prepared through S220 'to gelate the gel. (S230 '), and the gelling compound was filtered through the S230' step to prepare a super oxide producing composition.

2. Preparation of Antimicrobial Additives

(Manufacture example 3)

To 100 parts by weight of zeolite, 1 part by weight of the hydroxy radical generating composition according to Preparation Example 1 was mixed.

(Manufacture example 4)

It was prepared by mixing 30 parts by weight of the super oxide generating composition according to Preparation Example 2 with respect to 100 parts by weight of the illite.

3. Manufacture of plastic containers

(Example 1)

0.1 parts by weight of pearl (pearl) pigment and 0.1 parts by weight of the antimicrobial additive according to Preparation Example 3 were mixed with respect to 100 parts by weight of polyethylene, and then placed in a container mold and molded at a temperature of 155 ° C. for 17 seconds to prepare a container.

(Example 2)

50 parts by weight of pearl (pearl) pigment and 30 parts by weight of the antimicrobial additive according to Preparation Example 4 were mixed with respect to 100 parts by weight of polyethylene, and then placed in a container mold and molded at a temperature of 155 ° C. for 17 seconds to prepare a container.

(Comparative Example 1)

20 parts by weight of zeolite was mixed with respect to 100 parts by weight of polyethylene, and then placed in a container mold to form a container by molding at a temperature of 155 ° C. for 17 seconds.

3. Characterization

(1) antibacterial

The antimicrobial test was conducted by shaking flask method according to the antimicrobial activity test method of KS J 4206: 2008 antimicrobial function product. The culture was contacted with the sample and the culture medium and the CFU (Colony forming unit) was measured to evaluate the antimicrobial activity.

Escherichia as a specimen coli ( ATCC 25922) and Staphylococcus aureus (ATCC 6538) were used, respectively. As a nutrient medium, Bacto-peptone 5g, Beef extract 3g, distilled water 1,000ml, pH 6.8 ± 0.2 (25 ℃) was used. The antimicrobial properties were inoculated with the microorganisms in the antimicrobial processed samples and the control sample according to Comparative Example 1 in Examples 1 and 2, and after incubation, the number of viable cells was measured to compare the bacterial counts of the antimicrobial processed samples and the control sample. It was calculated using 1, and the results are shown in the following [Table 1].

(Equation 1)

M _b : Number of bacteria in control sample after incubation for 24 hours (average value)

M _c : Number of bacteria in the test sample after incubation for 24 hours (average value)

division Example 1 Example 2 Comparative Example 1 Esherichia coli
( ATCC  25922) 99.99% 99.99% 46.2% Staphylococcus aureus
( ATCC  6538) 99.99% 99.99% 49.3%

As shown in Table 1, Examples 1 and 2 of the present invention can be seen that the antimicrobial performance is very excellent compared to Comparative Example 1.

In addition, Examples 1 and 2 of the present invention by applying the pearl pigment is given a pearl texture to the container to improve the appearance and luxury and thereby improve the value of the product to the phosphorus.

As described above, the antimicrobial plastic container to which the pearl pigment is applied according to a preferred embodiment of the present invention has been described in accordance with the above description and drawings, but this is only an example and various modifications may be made without departing from the spirit of the present invention. It will be understood by those skilled in the art that variations and modifications are possible.

10, 10 ': first silica precursor 11, 11': superoxide generating compound
100, 100 ': core 20, 20': second silica precursor
21: transition metal compound 21 ': calcium compound
200, 200 ': shell

Claims (6)

In the plastic container which a pearl pigment and antimicrobial additive are added at the time of manufacture of a container,
With respect to 100 parts by weight of synthetic resin, 0.1 to 50 parts by weight of pearl pigment and 0.1 to 30 parts by weight of antimicrobial additives are included,
The antimicrobial additive is made by mixing 1 to 30 parts by weight of a hydroxy radical generating composition or a super oxide generating composition, based on 100 parts by weight of a mineral,
The mineral is used alone or in combination of two or more of zeolite, clay, kaolin, illite or calcium carbonate,
The hydroxy radical generating composition has a structure in which the shell 200 is coated on the surface of the core 100, and the core 100 has a superoxide generating compound 11 on the surface of the first silica precursor 10. It is made of a fixed, the shell 200 is made of a transition metal compound 21 is fixed on the surface of the second silica precursor 20,
The super oxide generating composition has a structure in which the shell 200 'is coated on the surface of the core 100', and the core 100 'is formed on the surface of the first silica precursor 10'. 11 ') is fixed, and the shell 200' is formed by fixing a calcium compound 21 'on the surface of the second silica precursor 20',
As the first silica precursor, a mixture of 60 to 80% by weight of water with 20 to 40% by weight of powder silicon oxide (SiO ₂ ) having a particle size of 0.2 to 1.0 μm is used as a silica sol.
The superoxide generating compound is used alone or in combination of two or more of silver nitrate (AgNO ₃ ), gold chloride (AuCl ₃ , HAuCl ₄ ), or platinum chloride (PtCl ₄ ),
The second silica precursor is tetraethoxy orthosilicate (TEOS), methyltrimethoxysilane (MTMS), tetramethoxy orthosilicate (TMOS), tetraprooxy orthosilicate (TPOS), tetrabutoxyor Sodium silicate (TBOS), tetrapentoxy orthosilicate (TPEOS), tetra (methylethylketooxymo) silane, vinyloxymosilane (VOS), phenyl tris (butanone oxime) silane (POS), methyloxymosilane (MOS ) Are used alone or in combination of two or more,
The transition metal compound is used alone or in combination of two or more of the iron salt compound or copper salt compound,
The calcium compound is an antimicrobial plastic container applied with a pearl pigment, characterized in that used alone or in combination of two or more of calcium oxide or calcium hydroxy oxide. delete delete delete delete delete

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