KR20020028216A - Antibacterial device and refrigerator provided therewith - Google Patents

Abstract

There is provided an antibacterial device having both a high antibacterial effect and food preservation performance in practical use, and a refrigerator provided with an antibacterial device. The antimicrobial device is constructed by packaging an antimicrobial agent containing a volatile antimicrobial component in a base material and a breathable distribution packaged therein in an impermeable packaging container in which a vent hole is provided. Moreover, this antimicrobial device is provided with the peelable, impermeable film layer on the outer surface of the packaging container which opens the ventilation hole. By peeling this film layer from a packaging container, the vapor of an antimicrobial component permeates through a ventilation hole, and it flows out into an external atmosphere, and the practical high antibacterial effect including the air and the food surface, and the storage performance containing the nutrient shaving of food are obtained.

Description

ANTIBACTERIAL DEVICE AND REFRIGERATOR PROVIDED THEREWITH}

The low-temperature storage environment in the refrigerator, such as a refrigerator, slows down the growth rate of the mold, but does not stop the growth, and thus, sufficient effects cannot be obtained on the antibacterial and mold prevention of food. Therefore, the method of injecting an antimicrobial agent into resin as an antimicrobial means is proposed, and the one disclosed by Unexamined-Japanese-Patent No. 8-210761 is one example.

Hereinafter, the antimicrobial means of the conventional refrigerator will be described with reference to the drawings.

8 is a cross-sectional view of a conventional refrigerator. In FIG. 8, the refrigerator main body 1 is comprised by the heat insulating material 2, The refrigerator compartment 5 in the upper part, the freezer compartment 6 in the middle, and the vegetable chamber 7 in the lower part are divided by the partition walls 3 and 4. As shown in FIG. Compartments are formed. The blower 9 forcibly vents the cooling air cooled by the cooler 8 of the refrigerating cycle to each chamber. The compressor 10 is installed at the bottom of the main body.

The cold air discharge duct 11 vents the cooling air cooled in the cooler 8 to the refrigerating chamber 5 by the blower 9. The storage container 12 is a storage container of the vegetable chamber 7 molded from resin, and the storage container 12 is added with a silver-based antimicrobial agent (not shown).

In the above configuration, the bacteria adhered to the surface of the storage container 12 are stopped by the antibacterial action of the antimicrobial agent added in the resin.

The conventional antimicrobial means cannot exert an antimicrobial effect against bacteria suspended in air or adhered to the food surface, and therefore, the antibacterial effect in practical use is low.

In addition, the conventional antimicrobial means did not increase the preservation performance including the nutrient shaving of food.

The present invention relates to an antibacterial device having an antibacterial function installed in a refrigerator refrigerator or the like, and a refrigerator provided with the antibacterial device.

1 is a cross-sectional view of the antimicrobial device in Embodiment 1 of the present invention.

2 is a plan view of a distribution of the antimicrobial device in Example 2 of the present invention.

3 is a cross-sectional view of the antimicrobial device in Embodiment 3 of the present invention.

4 is a cross-sectional view of the antimicrobial device in Embodiment 4 of the present invention.

Fig. 5 is a sectional view of the antimicrobial device in Embodiment 6 of the present invention.

Fig. 6 is a sectional view of a refrigerator provided with an antibacterial device according to a seventh embodiment of the present invention.

Fig. 7 is a sectional view of a refrigerator provided with an antibacterial device in a eighth embodiment of the present invention.

8 is a cross-sectional view of a conventional refrigerator.

The present invention provides an antimicrobial device that can obtain a high antimicrobial effect in practical use even without direct contact, and also improves food preservation, and a refrigerator provided with the antimicrobial device.

Antibacterial device provided in the present invention

(a) a breathable distribution package of an antimicrobial agent containing a volatile antimicrobial component in a base material,

(b) a permeable packaging container in which a vent hole is provided in a part for packaging the distribution, and

and (c) a permeable film layer detachably attached to an outer surface of the packaging container that opens the ventilation hole. By peeling this film layer from a packaging container, steam of an antimicrobial component permeate | transmits a vent hole and flows out into an external atmosphere.

As a result, a practical antimicrobial effect including air and food surfaces and a high preservation effect including a nutrient side of the food are obtained.

In addition, in the refrigerator provided in the present invention, the antimicrobial device is disposed in a distribution path of cooling air. As a result, a high antibacterial effect including the surface of air in the refrigerator or the stored food is obtained.

In addition, in the refrigerator provided in the present invention, the antimicrobial device is disposed in one compartment of the interior of the refrigerator. As a result, in addition to the antimicrobial effect in the vegetable compartment, the storage performance including the nutrient side of the stored food is increased.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerator equipped with an antibacterial device and an antibacterial device according to the present invention will now be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component part as before, and the detailed description is abbreviate | omitted.

(Example 1)

1 is a cross-sectional view of an antibacterial device according to a first embodiment of the present invention.

The antimicrobial device 13 is composed of a packaging container 14 and an individual 15 which is welded to cover the opening of the upper surface of the packaging container 14, and houses the distribution body 16 therein. do. The antimicrobial portion 17 is packaged in the distribution 16 and is formed by containing the volatile antibacterial component 19 in the substrate 18.

Both ends of the distribution body 16 are welded in duplicate, and the antimicrobial part 17 is packaged. The distribution body 16 is arrange | positioned with the object 15 and the space 20 in the state accommodated in the packaging container 14.

As the antibacterial component 19, aliphatic and aromatic esters of isothiocyanic acid esters are used. In particular, it is preferable to use allyl isothiocyanate from the point of strong antimicrobial activity and food preservation effect. Examples of the base material 18 include various natural resins, porous powders, viscosity minerals, paper, and nonwoven fabrics. It is preferable to use rosin ester especially from the point of carrying capacity for long-term controlled release of allyl isothiocyanate, and stability and safety of a material.

In addition, the distribution body 16 is a breathable film which wraps the antimicrobial agent part 17, and has a form or shape which permeate | transmits the vapor of allyl isothiocyanate which is an antimicrobial component 19. For example, many fine pores are provided in the film, and the vapor of allyl isothiocyanate is permeated therefrom. Alternatively, the film is a breathable film through which the vapor of allyl isothiocyanate can pass, and allows the vapor of allyl isothiocyanate to pass therethrough. Thereby, the vapor concentration of the antimicrobial component 19, namely allyl isothiocyanate, is adjusted. In addition, as a material of the distribution body 16, laminated | multilayer product of breathable films, such as a polyethylene film and a polypropylene film, and a nonwoven fabric is recommended, for example.

The individual 15 also has a vent 21 for passing a vapor of the antimicrobial component 19 in part thereof. And the permeable film layer 22 which can peel is welded to the opening peripheral part of the packaging container 14 toward the opening surface of the ventilation hole 21. As a material of the said film layer 22, aluminum foil, an aluminum vapor deposition film, etc. are recommended, for example.

Table 1 shows the results of testing the antimicrobial effect of the antimicrobial device in a box. A certain amount of mold spores is suspended in a box 50 cm long and 50 cm high. Then, two conditions are created: a case where a silver-based antimicrobial agent is defeated in a box of a conventional specification and an antimicrobial agent adheres to the inner surface of the mall, and when allyl isothiocyanate of predetermined concentration, which is a study specification, is released into the box. The spores of the fungus in the air before and after the start of the test are collected by a filter, and the number of colonies after incubation is calculated. As a result, the examination specification had the antibacterial effect 100 times stronger than the conventional specification, and the antibacterial effect improved significantly.

Conventional specification Review specification Number of bacteria before test (pieces / L) 2.0 × 10 ⁴ 2.0 × 10 ⁴ Number of bacteria after test (pieces / L) 2.0 × 10 ³ 10 Antimicrobial effect 1/10 1/100

As mentioned above, the antimicrobial component 19 which passed the air permeable distribution body 16, ie, the allyl isothiocyanate, is vented by peeling the impermeable film layer 22 in the antimicrobial apparatus 17 of a present Example. It flows out into the external atmosphere through 21.

The antimicrobial component acts on airborne bacteria or bacteria attached to the food surface to stop proliferation, so that a high antibacterial effect is obtained even without direct contact as in the prior art.

In addition, the ethylene inhibitory effect of allyl isothiocyanate and the decomposition inhibitory effect of vitamin C improve the preservation effect by suppressing the aging of foods, especially vegetables and fruits, and the preservation effect in terms of nutrients. .

In addition, since the opening of the packaging container 18 is hermetically sealed with the impervious film layer 22 before use, the antimicrobial component 15 does not leak to the outside. For this reason, in the antimicrobial apparatus 13, the antimicrobial effect is exhibited immediately only by peeling off the film layer 22 at the time of use, and it is easy to use it by the extremely simple handling.

In addition, since a suitable space 20 is provided between the distribution 16 and the individual 15, pressure is not applied to the distribution 16 when the individual 15 is welded to the packaging container 14. For this reason, the base material 18 containing the antibacterial component 19 does not leak, and the reliability of the antibacterial device 13 is increased.

(Example 2)

2 is a plan view of a distribution of the antibacterial device according to the second embodiment of the present invention. The distribution body 23 performs double thermal welding of the 1st welding part 24 and the 2nd welding part 25 to the both ends of the breathable film which laminated | stacked the nonwoven fabric heat-welded by the cylindrical shape, and makes the antimicrobial part 17 Seal.

Welding is performed by a method suitable for the material of the distribution body 23. In the present embodiment, the first welding portion 24 has a sealing temperature of 135 ° C. and a pressing force of 4 kgf / cm ² , and the second welding portion 25 is double welded at a sealing temperature of 120 ° C. and a pressing force of 1 kgf / cm ² . .

In the configuration as described above, for example, when the antimicrobial portion 17 is a liquid or a low viscosity substance, leakage of the antimicrobial portion 17 from both ends of the distribution 23 is concerned. However, since the welding part of both ends is double-welded, sufficient thermal welding is performed, the leakage of the antimicrobial agent part 17 is prevented, and the reliability of an antimicrobial apparatus becomes high.

(Example 3)

3 is a cross-sectional view of the antibacterial device according to Embodiment 3 of the present invention.

In the antimicrobial device 26, the antimicrobial agent 27 is packaged in the distribution 16. The base material 28 is a liquid or low viscosity material in which an additive 29 of extremely hard material is added. And the antimicrobial part 27 is comprised by containing the volatile antimicrobial component 19 in the base material 28. As shown in FIG. Here, especially as an additive, paraffin wax is preferable from a stability point and a safety point.

As mentioned above, even if the base material 28 of the antimicrobial part 27 is a liquid or a substance with a low viscosity, the additive material 29 of an extremely hard material is added to the base material 28 even at low temperature, so that the viscosity of the antimicrobial part 27 becomes high. . As a result, the antimicrobial portion 27 solidifies or gelizes with no fluidity at room temperature, and leakage of the antimicrobial portion 27 from the distribution body 16 is prevented, thereby improving convenience of handling.

(Example 4)

4 is a cross-sectional view of the antibacterial device according to Embodiment 4 of the present invention.

In FIG. 4, the antimicrobial agent 31 in the antimicrobial device 30 is packaged in a distribution 16. The base material 32 constitutes the antimicrobial agent 31, and an additive 29 which is extremely hard even at low temperatures such as paraffin wax is added at low temperatures, and further, the volatile antibacterial component 19 and the volatile aroma component ( 33) is added. As the aromatic component 33, various herbal components are effective for masking the irritating smell of the antibacterial component 19. As the fragrance component 33, peppermint oil which has a synergistic effect on the balance is particularly preferable by combining with allyl isothiocyanate. In addition, a suitable space 34 is formed between the object 15 of the antimicrobial agent 31 and the film layer 22.

By forming the space 34 in the structure in which the antimicrobial component 19 and the aromatic component 33 are added to the antimicrobial component 31, the vapor saturation amount of the aromatic component 33 having low volatility with respect to the antimicrobial component 19 is reduced. It can be kept high. Therefore, with the masking effect of the peppermint oil which is the fragrance component 33, the irritating smell of allyl isothiocyanate produced at the time of peeling of the impermeable film layer 22 is reduced. In addition, the synergistic effect of allyl isothiocyanate and peppermint oil can increase the antibacterial effect.

(Example 5)

Table 2 shows a composition table of the antibacterial device according to Example 5 of the present invention.

The antimicrobial component 19 and the aromatic component 33 contained in the antimicrobial agent 31 are blended so that the aromatic component 33 has a high compounding ratio with respect to the antimicrobial component 19.

In order to mask the irritating odor of allyl isothiocyanate which is very volatile, the blending ratio of peppermint oil is made higher than that of allyl isothiocyanate. Thereby, the highly volatile isothiocyanate allyl is masked with the low volatility peppermint oil, and the irritating odor of the allyl isothiocyanate is reduced more. Moreover, a high antibacterial effect is obtained by the synergistic effect of allyl isothiocyanate and peppermint oil.

ingredient Content (wt%) Isothiocyanate allyl 15.6 peppermint oil 19.5 Rosin ester 54.5 Paraffin wax 10.4

(Example 6)

5 is a sectional view of an antibacterial device according to a sixth embodiment of the present invention. In the antimicrobial device 35, the antimicrobial agent 36 is packaged in a distribution 16. The aromatic component 37 is a different kind from the volatile aromatic component 33. While the aroma component 33 is a herb component such as peppermint oil, the component 37 is a citrus fruit system, for example, an extract component of lemon. The antimicrobial agent 36 contains two types of aromatic components, the herb-based aroma component 33 and the citrus-based aroma component 37.

When there is a desire to further increase the antibacterial effect, it is necessary to increase the compounding amount of the antibacterial component 19 having an irritating odor such as allyl isothiocyanate. As a result, the irritating odor also becomes strong, but the smell is masked by adding a different type of citrus-based aroma component 37 such as lemon in addition to the herbal component 33 such as peppermint oil.

Here, when masking the irritating odor in which the antimicrobial component 19 is increased by using only one type of the aromatic component 33 of the herbaceous system, the masking effect on the increase of the aromatic component 33 is saturated, or the increased aromatic component. (33) The smell of itself becomes strong, and a state defect giving a separate discomfort to a user occurs.

By adding the aromatic component 37 different from the aromatic component 33, the irritating smell of the antibacterial component 19 is masked without emphasizing the smell of the existing aromatic component 33. By using the aroma component 37 as a citrus fruit, there is no fear that an unpleasant scent may be generated in a neat user and cause an unpleasant feeling with a masking smell. As the citrus-based aromatic component 37, there is also an advantage that a higher antibacterial effect can be obtained by a synergistic effect by using a lemon extract component or the like which has an antibacterial effect on its own.

(Example 7)

6 is a sectional view of a refrigerator according to a seventh embodiment of the present invention. In the refrigerator main body 38, the antibacterial device 30 is provided in place in the cold air discharge duct 11.

In the configuration as described above, the cooling air cooled in the cooler 8 is ventilated by the blower 9 through the cold air discharge duct 11 to the refrigerating chamber 5 to perform a cooling action. At this time, the cooling air circulating in the cold air discharge duct 11 is also circulated around the antibacterial device 30, and the antibacterial component 19 and the aromatic component 33, for example, isothio from the antibacterial device 30. Steam of allyl cyanate and peppermint oil flows into the refrigerator compartment 5. The antibacterial component 19 and the fragrance component 33 which flowed out into the refrigerator chamber 5 pass through the circulation path of cooling air, and finally circulate also in the freezing chamber 6 and the vegetable chamber 7. As a result, the cooling air acts on the airborne bacteria and the bacteria adhered to the food surface being stored, thereby obtaining a high antibacterial effect. Further, the masking action of the aroma component 33 reduces the irritating smell of the antimicrobial component 19, thereby reducing the discomfort to the user when the door is opened.

In addition, although the installation place of the antimicrobial device 30 was made into the cold air discharge duct 11 in this embodiment, if it is not desirable to place the antimicrobial device 30 in a low temperature environment, it may be installed in a cold air intake duct, In addition, the position is not particularly limited as long as it is a place where the cooling air is convection, even if not directly in the duct.

(Example 8)

7 is a cross-sectional view of the refrigerator according to the eighth embodiment of the present invention. The vegetable chamber 40 is partitioned in the refrigerator main body 39. And the antimicrobial apparatus 30 is provided in the upper upper part of the storage container 12. As shown in FIG.

In the configuration as described above, the antibacterial component 19 and the aromatic component 33, for example, allyl isothiocyanate and the peppermint oil vapor flow out from the antibacterial device 30 in the atmosphere in the vegetable chamber 40. The antimicrobial component 19 and the fragrance component 33 spilled into the vegetable chamber 40 act on the bacteria attached to the surface of the food such as the supporting bacteria in the air or the vegetables, fruits, etc. stored in the air. Antibacterial effect is obtained. Moreover, the ethylene inhibitory effect of allyl isothiocyanate and the decomposition inhibitory effect of vitamin C improve the preservation effect by the aging inhibition of vegetables and fruits, and the preservation effect of the nutrient side. Further, the masking action of the aroma component 33 reduces the irritating smell of the antimicrobial component 19, thereby reducing the discomfort to the user when the door is opened.

In addition, in this embodiment, although the installation place of the antimicrobial device 30 was made into the vegetable room 40, it does not mean only the storage room for vegetables and fruits, but if the compartment or container which can store vegetables and fruits, the said effect will be Exerted.

Table 3 shows the results of testing the antimicrobial effect in the vegetable room of the refrigerator. Two conditions are created in the case of a conventional specification in which a silver-based antimicrobial agent is beaten in a vegetable chamber container, and in the case of installing an antibacterial device that is a review specification in a vegetable chamber. We store strawberry of tray packing in vegetable room of each specifications. Moreover, in the package, one strawberry with mold already placed in its center. In addition, the growth of the fungus is observed over time. As a result, in the conventional specification, the mold was propagated to the surrounding strawberry, whereas in the examination specification, the transplantation of the mold into the surrounding strawberry was not recognized, and the antibacterial effect in the examination specification became clear.

Conventional specification Review specification The growth situation of mold before examination - - The growth situation of mold after examination +++ -

-: No growth +++: Remarkably breed

The present invention relates to an antibacterial device having an antibacterial function installed in a refrigerator refrigerator or the like, and a refrigerator provided with the antibacterial device. The antimicrobial device of the present invention comprises: an antimicrobial agent portion containing a volatile antimicrobial component in a substrate, a breathable distribution body for packaging the antimicrobial agent portion, an impermeable packaging container for packaging the distribution body, and a vent hole formed in a portion thereof, and the air ventilator. It is provided with the peelable, impermeable film layer provided in the outer surface of the said packaging container which opens a hole. The antimicrobial component spilled into the outside atmosphere acts on airborne bacteria or bacteria attached to the food surface to stop the growth of bacteria.

In addition, in the refrigerating chamber in which the antimicrobial device is arranged in the circulation path of the cooling air, the antimicrobial component volatilized from the antimicrobial device is volatilized in the air by the flow of the cooling air, thereby exerting an antimicrobial effect on the airborne bacteria or on the food surface. do.

In addition, in the refrigerator disposed in a compartment of the room where the antimicrobial device stores the vegetables, the antimicrobial component volatilized from the antimicrobial device spreads evenly throughout the room, exerting antimicrobial activity on supporting bacteria or food bacteria in the indoor air, It suppresses the generation of ethylene gas from vegetables and fruits and the attenuation of nutrients such as vitamin C.

Moreover, when an aromatic component is contained in an antimicrobial agent part, antimicrobial component particle | grains are masked by the aromatic component particle | grains, and the irritating odor of the antimicrobial component volatilizing in the inside is reduced.

Claims (13)

An antimicrobial agent containing a volatile antimicrobial component in the substrate; Breathable distribution package the antimicrobial agent; An impermeable packaging container for packaging the distribution and providing vent holes in a portion thereof; And In the antimicrobial device containing the peelable, impermeable film layer provided in the outer surface of the said packaging container which opens the said ventilation hole, By peeling the film layer from the packaging container, the antimicrobial component vapor generated in the antimicrobial agent passes through the distribution hole and the ventilation hole of the packaging container, characterized in that the antimicrobial device flows out to the outside atmosphere. The antimicrobial device according to claim 1, wherein a space is provided between the distribution body and a surface on which the vent hole of the packaging container is provided. The antimicrobial device according to claim 1 or 2, wherein both ends of the distribution are respectively double-welded. The antimicrobial device according to claim 1, 2 or 3, wherein a low temperature curable material is added to the base material of the antimicrobial portion to increase the viscosity of the base material. The antimicrobial device according to claim 1, wherein the antimicrobial agent further contains an aromatic component. The antimicrobial device according to claim 5, wherein the aromatic component is blended at a high compounding ratio with respect to the antimicrobial component. 6. The antimicrobial device of claim 5 wherein the antimicrobial portion further contains at least two of the fragrance components. The antimicrobial device according to claim 5, wherein the aromatic component is a herb component. 8. The antimicrobial device according to claim 7, wherein the fragrance component is a herb and a citrus fruit. The antimicrobial device according to claim 5, 6 or 7, wherein a space is provided between the surface of the packaging container provided with the vent hole and the film layer. A storage room for storing food; A blower for circulating cooling air in the storage compartment; And In the refrigerator comprising the antimicrobial device of claim 1, The antimicrobial device is a refrigerator, characterized in that disposed in the distribution path of the cooling air sent from the blower. A vegetable room for storing at least one of vegetables and fruits; And In the refrigerator comprising the antimicrobial device of claim 1, And the antimicrobial device is arranged in the vegetable compartment. The refrigerator according to claim 11 or 12, wherein the antimicrobial portion contains an aromatic component.