JP4826733B2 - Photodisinfection system and flash irradiation device used therefor - Google Patents

Description

The present invention relates to a light sterilization system that irradiates a liquid container in which the mouth of a container main body made of an ultraviolet light transmissive material is closed with a lid or a stopper to sterilize the inner surface of the container and the content liquid, and the use thereof The present invention relates to a flash irradiation apparatus.

As a light sterilization system that sterilizes the inner surface of liquid containers filled with containers made of UV permeable materials and liquids and beverages that are not suitable for heat sterilization, the lamp life is long and has a sterilizing effect. Generally, a low-pressure mercury lamp that efficiently emits ultraviolet light with a wavelength of 254 nm, which is considered to be high, is used, but the low-pressure mercury lamp sterilizes a large amount of liquid containers in a short time because the ultraviolet output is low. However, if the UV output is increased, the number of lamps used increases, and there is a problem that the installation space of the entire light sterilization system increases, and the liquid container is thick and light transmissive. If the rate is low, or if the bacteria are present in high concentration and overlap and adhere to the inner surface of the container, or if the type of bacteria is spore bacteria with high resistance to ultraviolet irradiation, the sterilization level (99 To obtain a bactericidal effect 9999% or more sterilization) there is a problem that it is difficult.

For this reason, recently, sterilization treatment by a flash irradiation device provided with a flash lamp that instantaneously emits ultraviolet light with higher output and higher illuminance than a low-pressure mercury lamp is gradually spreading. For a card that is integrally molded so that a plurality of vials filled with pharmaceutical liquids such as vials and ampoules are lined up in a horizontal row by blow molding of polyethylene, the card is placed across the conveyance path of the card. There has been proposed a light sterilization system that irradiates flash light from both sides with a flash light irradiation device to sterilize the inner surface of liquid containers such as vials and the contents liquid arranged in a horizontal row (see Patent Documents 1 and 2).
Special Table 2000-511497 JP 2005-52294 A

However, liquid containers such as vials whose entire container is formed by blow molding of polyethylene can effectively sterilize the inner surface of the container and the contents liquid by the above-mentioned light sterilization system. For example, as shown in FIG. 8, a sterilization system is filled in a container body 2 made of polyethylene bottles with a specified amount of content liquid 3 such as glucose solution, electrolytic solution, amino acid solution or the like as an infusion, and the mouth of the container body 2 is infused. The infusion bottle 1 that is filled with the content liquid 3 is experimentally introduced into the production line of the infusion bottle 1 that is sealed with a lid (or stopper) 4 provided with a rubber 5 for piercing the needle, and the filling of the content liquid 3 is completed. A pair of irradiators 31R and 31L each composed of a rod-like flash lamp 32 that emits ultraviolet rays in a wavelength range having a bactericidal action and a bowl-shaped concave reflecting mirror 33 are arranged on both sides of the conveyance path conveyed by the The device 30 irradiates the infusion bottle 1 with a flash from the side, and determines the number of remaining bacteria in the infusion bottle 1 after the irradiation, on the body part 2B side of the bottle (container body 2) and the neck part 2N above it. As shown in the graph of FIG. 9, when the body part 2B side is measured as shown in the graph of FIG. 9, the number of remaining bacteria is remarkably reduced by flash irradiation twice as shown in the solid line, but the neck part 2N side is As indicated by the broken line, the degree of decrease in the number of remaining bacteria is extremely small, and it has been difficult to obtain a sterilization effect at a sterilization level with a small number of irradiations.

When the cause is investigated, since the neck portion 2N of the container body 2 is formed thicker than the body portion 2B, the light transmittance is low, and the neck portion 2N is transmitted through the neck portion 2N. Because the flash irradiated to the inner surface of the lid 4 that closes the mouth of 2 is attenuated, and the flash does not easily reach the minute gap formed between the mouth of the container body 2 and the lid 4 that closes the mouth. It was proved that it was difficult to kill the bacteria attached to the gap.

In the unlikely event that bacteria that may cause infection such as Serratia bacteria adhere to the gap formed between the mouth of the container body 2 and the lid 4 that closes the mouth, the bacteria are not sterilized. When the infusion bottle 1 is shipped to the market and left at room temperature for a long time, the remaining bacteria grow to a considerable number in the liquid such as glucose liquid or amino acid liquid that is the content liquid 3, and a large amount May be a source of bacterial exposure and may cause intensive sepsis.

Therefore, the infusion bottle 1 reliably prevents the bacteria attached to the inner surface of the neck portion 2N of the container body 2 formed thick and the gap formed between the mouth of the container body 2 and the lid 4 closing the mouth. However, if the number of flash irradiations is increased, the flash lamp 32 has a short life and the running cost increases. At the same time, the time required for the sterilization treatment is increased and the productivity of the infusion bottle 1 is lowered. There is a problem of doing. Further, in order not to reduce the productivity of the infusion bottle 1, when the flash lamp 32 is caused to emit light continuously in a short time, the infusion agent that is the content liquid 3 of the infusion bottle 1 is generated by the heat rays emitted from the lamp 32. There is a risk of deterioration due to deterioration or high temperature deterioration such as blackening of the container body 2.

In addition, a container containing liquid that fills the container body 2 with a specified amount of the content liquid 3 and closes the mouth of the container body 2 with a lid 4 or a stopper like the infusion bottle 1 fills the container body 2 with the content liquid 3. In order to prevent the content liquid from overflowing from the mouth of the container main body 2 at the time, and to allow thermal expansion of the content liquid 3 filled in the container main body 2 which is sealed with the lid 4 or the stopper, The internal volume of the main body 2 is made larger than the filling amount of the content liquid 3, and the liquid level of the content liquid 3 filled in the container main body 2 and the inner surface of the lid 4 or the stopper that closes the mouth of the container main body 2 In general, a space 6 serving as a head space is generated.

The present invention provides a sterilizing effect on a liquid-filled container in which a space serving as a head space is formed between the liquid level of the content liquid filled in the container main body made of an ultraviolet light transmissive material and the lid or plug that closes the mouth of the container main body. A flash irradiation device equipped with a flash lamp that emits ultraviolet rays can irradiate flash light to ensure that the inside of the liquid container can be sterilized. Especially, the life of the flash lamp is decreased and the productivity of the liquid container is decreased. In order not to come in, it is possible to reliably kill bacteria attached to a minute gap formed between the mouth of the container body and the lid or plug that closes the mouth with a small number of flash irradiations. This is the main technical issue.

In order to solve the above-mentioned problems, a photo-sterilization system according to the present invention has a head between a liquid surface of a content liquid filled in a container body made of an ultraviolet light transmissive material and a lid or a plug that closes the mouth of the container body. The liquid containing container in which the space becomes a space is irradiated with flash light by a flash irradiation device provided with a flash lamp that emits ultraviolet rays in a wavelength range having a sterilizing action, and the inner surface of the liquid containing container and the content liquid are sterilized. An optical sterilization system, wherein the liquid container is in an inverted state or an inclined state in which an inner surface of a lid or a stopper that closes the mouth of the container body is immersed in the liquid content, and the flash irradiation is performed from the side of the container. configured to illuminate the flash with device該閃light irradiation device, arranged so as to face the both sides of the conveying path for conveying side by side liquid-filled containers with the inverted state or inclined state in a row A pair of irradiators, and each irradiator includes a rod-shaped flash lamp and a saddle-shaped concave reflector that collectively irradiates a plurality of liquid containers arriving between them from the side with flash light. The container body of the liquid container is composed of a bottle having a neck part, and the rod-like flash lamps of the two irradiators are opposed to the neck part of the container body of the liquid container container that comes between them from a short distance. It is arrange | positioned in the position which carries out .

According to the present invention, the flash that irradiates the liquid container from the side is directly applied to the container main body and the content liquid of the liquid container so that the inner surface of the container main body and the content liquid are sterilized. First, a part of the flash directly irradiated on the content liquid is confined in the content liquid by repeating total reflection at the boundary surface between the content liquid and the container body having different refractive indexes and simultaneously propagating in the content liquid. The inner surface of the lid or stopper immersed in the content liquid or the gap formed between the lid or stopper and the mouth of the container main body is reached, and these portions are also sterilized reliably.

The best embodiment of the photo-sterilization system according to the present invention is that the container main body made of an ultraviolet light transmissive material is filled with the content liquid, and the container main body is filled with an upright liquid container whose mouth is closed with a lid or a stopper. In a production line for liquid containers transported by a line conveyor or the like, the liquid container is inverted and the inside of the lid or stopper that closes the mouth of the container body is in an inverted or inclined state immersed in the liquid content An inversion device and a flash irradiation device for irradiating a liquid container which has been inverted or inclined by the inversion device from the side thereof are installed.

The flash irradiation device is a pair of liquid containers placed in an inverted state or an inclined state so as to face each other across a conveyance path that conveys the liquid containers arranged in a line, and can be advanced and retreated in directions toward and away from each other. These irradiators are composed of a rod-shaped flash lamp and a saddle type that collectively irradiate flashes from the side to a plurality of liquid containers that have come between them when they are brought close to each other. It is configured with a concave reflecting mirror, and when both illuminators are brought close to each other, a cylindrical chamber for confining the flash light of the rod-shaped flash lamp is formed by both saddle-shaped concave reflecting mirrors. The saddle type concave reflecting mirror has a visible light and infrared of 400 nm or more on the concave surface of a reflecting mirror base material formed into a saddle shape with hard glass such as quartz or borosilicate glass that transmits infrared rays. Transmitted through, it has a structure in which the ultraviolet reflection film that reflects ultraviolet rays having a wavelength of 240~290nm achieving the bactericidal action is formed.

When the container body of the liquid container is a bottle having a neck portion, the rod-like flash lamps of both irradiators are positioned so as to face the neck portion from a close distance when the irradiators are brought close to each other. It is arranged.

FIG. 1 is a perspective view schematically showing an example of a light sterilization system according to the present invention, FIG. 2 is a perspective view showing the operation of a flash irradiation apparatus used in the photo sterilization system, and FIG. 3 is a front view of the flash irradiation apparatus. FIG. 4 is a graph showing the relationship between the number of flashes irradiated by the flash irradiation device and the number of remaining bacteria, FIG. 5 is a side view showing a mechanism for transporting the liquid container to the flash irradiation device in an inverted state, and FIG. 6 is an inverted state. It is a perspective view which shows the conveyance jig for conveying the container with a liquid which was made.

The light sterilization system of this example fills a container body 2 formed into a bottle shape with an ultraviolet light transmissive material such as polyethylene, and fills the container with a content liquid 3 as an infusion, and closes the mouth of the container body 2 with a lid 4. The infusion bottle 1 manufactured in the upright state manufactured through the above-described process is turned upside down by inverting the infusion bottle 1 in the upright state by 180 ° by a predetermined number on the infusion bottle production line in which the inline bottle 1 is conveyed by the line conveyor 7. An inversion device 8 and a flash irradiation device 9 for collectively irradiating flash light from the side of a fixed number of infusion bottles 1, 1,... Inverted by the inversion device 8 are installed.

The reversing device 8 stores the infusion bottles 1 stored by a fixed number (for example, four each) by a work stopper (not shown) that narrows the transport interval of the upright infusion bottles 1 that are transported in a line on the line conveyor 7. 1... Is composed of a rotating arm that holds 1 at a time and reverses it 180 °. Further, the flash irradiation device 9 is opposed to both sides of a transport path in which a fixed number of infusion bottles 1, which are inverted by 180 ° by the reversing device 8, are intermittently transported in a row. It is composed of a pair of irradiators 10R and 10L that are arranged so as to move forward and backward in a direction approaching and separating from each other by a linear motion mechanism (not shown) using a cylinder. When the two are brought close to each other, a rod-shaped flash lamp 11 and a saddle-shaped concave reflecting mirror that collectively irradiate a flash from the side to a certain number of infusion bottles 1, which have come in an inverted state between the two. 12.

Further, the irradiators 10R and 10L are brought into a state where they are separated from each other as shown in FIG. 2 (b) and FIG. In some cases, the cylindrical chamber C for confining the flash light of the rod-shaped flash lamps 11 and 11 is formed by both the saddle-shaped concave reflecting mirrors 12 and 12, and both the rod-shaped flash lamps 11 are mutually connected. It is arrange | positioned in the position which opposes the neck part 2N of the container main body 2 of the infusion bottle 1 made into the inverted state when it approached from the nearest distance.

The rod-shaped flash lamp 11 has a configuration in which a water cooling jacket 14 formed of a transparent cylindrical tube through which cooling water is circulated and supplied is attached to the outside of the lamp luminous tube 13. An ultraviolet reflecting film 16 having infrared transmission characteristics is formed on the concave surface of the reflector base 15 formed into a bowl shape by an infrared transmitting material such as hard glass obtained by adding a small amount of boric acid to the main component silicic acid. It becomes the composition. The reflective film 16 is formed of an optical thin film deposition material that reflects light having a wavelength of 220 nm to 400 nm and transmits visible light and infrared light having a wavelength of 400 nm or more, for example, from 200 nm included in the flashlight of the flash lamp 11. Of light over a wide wavelength range of 800 nm or more, light having a wavelength of 240 nm to 290 nm, which is effective for sterilization, is reflected toward a liquid-containing container such as the infusion bottle 1, and light with a wavelength of 780 nm or more in the infrared region Is transmitted to the outside of the reflecting mirror 12.

Further, the mechanism for conveying the infusion bottle 1 in the upright state conveyed by the line conveyor 7 to the flash irradiation device 9 in the inverted state by the reversing device 8 is fixed to the inverted state by the reversing device 8 as shown in FIG. The number of infusion bottles 1, 1... Is accommodated and conveyed in its inverted state, and the infusion bottles 1, 1... The lifting jig 18 and a pair of beams that perform a lift and carry motion lift the transport jig 17 in which the infusion bottles 1, 1,... Are accommodated from the lift 18 and transport them between the irradiators 10R and 10L of the flash irradiation device 9. It consists of a walking beam 19.

The transport jig 17 is a group on which the infusion bottles 1, 1,... Are placed in a line in an inverted state in order to receive and hold the infusion bottles 1, 1,. On the upper surface of the base 20, concave portions 21, 21... Into which the tops of the lids 4 of the infusion bottles 1, 1,... Are fitted, and a wire fence 22 that surrounds the infusion bottles 1, 1,.

The above is the configuration of the light sterilization system of Example 1 and the flash irradiation device 9 used for the system. Next, a series of operations will be described. First, an infusion bottle 1 that is conveyed in a line in an upright state by a line conveyor 7 through a transfusion filling process in which the container body 2 is filled with the content liquid 3 and the mouth of the container body 2 is closed with the lid 4 is conveyed. 1 and FIG. 5 (a) by a reversing device 8 in which the infusion bottles 1, 1... Are stored as a rotating arm. ) Is collectively held.

Next, the inversion device 8 rotates from the state shown by the solid line in FIG. 5A to turn as shown by the chain line in FIG. 5 and reverses 180 ° as shown in FIG. 1, 1... Are in an inverted state, and a conveying jig 17 is supplied to the reversal position by the lifting device 18, and the infusion bottles 1, 1. Be contained.

Then, the conveying jig 17 containing the infusion bottles 1, 1,... In an inverted state is lifted by the walking beam 19 from the lifting device 18 as shown in FIG. 5 (c), and the flash irradiation device as shown in FIG. 9 is transported between the irradiators 10R and 10L, and the irradiators 10R and 10L are separated from each other as shown in FIG. 2A and FIG. 3 with broken lines, as shown in FIG. 2B and FIG. The necks of the container body 2 of the infusion bottles 1, 1,... In which the bar-like flash lamps 11, 11 of both irradiators 10R, 10L are interposed in an inverted state between the two irradiators 10R, 10L. At the same time, the cylindrical chamber C that confines the flash of the rod-shaped flash lamps 11 and 11 is formed by the vertical concave reflecting mirrors 12 and 12 of the two irradiators 10R and 10L. The state.

In this state, when the bar-shaped flash lamps 11 and 11 of both the irradiators 10R and 10L are turned on to irradiate the inverted infusion bottles 1, 1,... With the flash light, the flash light is reflected in the cylindrical chamber C in which it is confined. Then, each part of the infusion bottle 1, 1,... Is irradiated with no hesitation, and a flashing light is irradiated from a close distance to the thick neck portion 2N of the container body 2, and further transmitted through the container body 2. Then, a part of the flash irradiated to the content liquid 3 propagates through the content liquid 3 by repeating total reflection at the boundary surface between the content liquid 3 and the container body 2 having a different refractive index, and is immersed in the content liquid 3. The inner surface of the lid 4 and the gap formed between the lid 4 and the mouth of the container body 2 are irradiated, and the inner surface of the neck portion 2N of the container body 2 is naturally irradiated.

As a result, the infusion bottles 1, 1,... Are not only from the inner surface of the body part 2B of the container body 2 and the content liquid 3, but also from the gap generated between the mouth of the container body 2 and the lid 4 that closes the mouth, or from the outside. The inner surface of the lid 4 that is difficult to transmit the flash light, the inner surface of the thick neck portion 2N, and the like are also effectively sterilized by the flash of the flash lamps 11 and 11, and the remaining bacteria on the body portion 2B and the neck portion 2N of each infusion bottle 1 When the number was measured, as shown in the graph of FIG. 4, it was confirmed that the sterilization effect of the sterilization level was obtained at any part by the number of flash irradiations of 2 times.

In addition, when the irradiators 10R and 10L are brought close to each other, a cylindrical chamber C for confining the flash of the rod-shaped flash lamps 11 and 11 is formed by the saddle-shaped concave reflecting mirrors 12 and 12 so that the infusion bottle 1 Not only increases the sterilizing effect, but also suppresses damage caused by the peripheral equipment receiving flashlight from the flash lamps 11 and 11 and causing UV degradation.

Further, the bowl-shaped concave reflecting mirrors 12 and 12 forming the cylindrical chamber C have a configuration in which the ultraviolet reflecting film 16 having visible light / infrared transmitting characteristics is formed on the concave surface of the reflecting mirror base material 15. It is prevented that the heat rays generated by the flash lamps 11 and 11 are reflected to the infusion bottle 1 side and the contents liquid 3 of the infusion bottle 1 is denatured due to the influence of the high heat caused by the heat rays. Since it is made of a permeable material, there is no possibility that the inside of the cylindrical chamber C becomes hot and adversely affects the content liquid 3.

In addition, when a general aluminum reflector is used in place of the saddle-shaped concave reflector 12 of this example, the flash energy of the flash lamp 11 should be 1200 J or less when the flash lamp 11 has four flashes. For example, the container main body 2 made of polyethylene bottle does not cause high-temperature deterioration such as blackening that can be visually confirmed, but if it exceeds 1200 J, the occurrence of blackening becomes visible and the commercial value of the infusion bottle 1 is impaired. Therefore, the aluminum reflector cannot be used for photosterilization of the infusion bottle 1. On the other hand, when the saddle-shaped concave reflecting mirror 12 having the ultraviolet reflecting film 16 having visible / infrared transmitting characteristics is used, it is confirmed that high-temperature deterioration such as blackening does not occur even under the same conditions as described above. It was. In order to prevent the above-described high-temperature deterioration, the ultraviolet reflecting film 16 is not limited to being formed on the entire concave surface of the reflecting mirror base material 15 as long as it has at least infrared transmission characteristics. For example, it may be a case where it is formed locally only at a part close to the flash lamp 11. Further, even if the reflecting mirror base 15 is not made of an infrared transmitting material, if the ultraviolet reflecting film 16 having infrared transmitting characteristics is formed on the concave surface, the heat rays generated by the lighting of the flash lamps 11 and 11 are infused. Since reflection to the bottle 1 side can be prevented, the reflector substrate 15 is not necessarily limited to one made of an infrared transmitting material.

FIG. 7 is a front view showing another example of the flash irradiation device used in the photo-sterilization system according to the present invention. This device is a container body 2 of the infusion bottle 1 that is turned upside down in the flash irradiation device 9 of the first embodiment. The rod-shaped flash lamps 11 and 11 arranged so as to face the neck portion 2N of the container are changed to the positions facing the body portion 2B of the container body 2 and adapted to the arrangement of the flash lamps 11 and 11. Since the shape of the saddle-shaped concave reflecting mirrors 12 and 12 is modified and the other configurations are not different from the apparatus 9 of the first embodiment, the corresponding portions are denoted by the same reference numerals and detailed description thereof is omitted.

In the flash irradiation device 9 of FIG. 7, the rod-like flash lamps 11 and 11 of the irradiators 10R and 10L are opposed to the body portion 2B of the container body 2 of the infusion bottle 1 when both the irradiators 10R and 10L are brought close to each other. Compared to the flash irradiation device in which the rod-like flash lamps 11 and 11 are arranged at the position facing the neck portion 2N of the container body 2 of the infusion bottle 1 as in the first embodiment, as shown in FIG. Although the sterilizing effect of the neck portion 2N is slightly inferior, as in the flash irradiation device of the first embodiment, the vertical concave reflectors 12 and 12 of the irradiators 10R and 10L that are brought close to each other are A cylindrical chamber C for confining flash light is formed, and the flash light is irradiated to each part of the infusion bottles 1, 1... A portion of the emitted flash light propagates through the content liquid 3 by repeating total reflection at the boundary surface between the content liquid 3 and the container body 2 having a different refractive index, and the inner surface of the lid 4 immersed in the content liquid 3 Since the gap formed between the lid 4 and the mouth of the container main body 2 and the inner surface of the thick neck portion 2N are irradiated, the sterilization effect at the sterilization level can be obtained with a small number of flash irradiations.

The optical sterilization system according to the present invention is not limited to an infusion bottle, but a head between a liquid surface of a content liquid filled in a container main body made of an ultraviolet light transmissive material and a lid or a plug for closing the mouth of the container main body. The present invention can be applied to a sterilization treatment of a liquid container in which a space is formed.

Further, as described above, the pair of irradiators 10R and 10L that are arranged so as to face each other and advance and retreat in a direction approaching / separating from each other emit a flash when both are brought close to each other. 11 and saddle-shaped concave reflecting mirrors 12 and 12, and when the two irradiators 10R and 10L are brought close to each other, both saddle-shaped concave reflecting mirrors 12 and 12 serve as rod-shaped flash lamps 11 and 11 respectively. The flash irradiation device 9 configured to form the cylindrical chamber C that confines the flash of the liquid is not limited to a container containing a liquid in which the mouth of the container body is closed with a lid or a stopper, such as an infusion bottle. It is also useful for sterilization of liquid-filled containers in which the entire container is blow-molded with an ultraviolet light transmissive material such as polyethylene, such as a bottle or ampoule.

In addition, it is the structure which can carry in / out a container with liquids, such as the infusion bottle 1, between the irradiators 10R and 10L in the state which the irradiators 10R and 10L approached as the solid line illustration of FIG.3 and FIG.7. In this case, the two irradiators 10R and 10L may be configured to be fixed in the state illustrated in FIG. 3 and FIG.

The present invention contributes to improvement in the function and reliability of a light sterilization system that irradiates a liquid-containing container with flash light from a flash lamp to sterilize the inner surface of the container and the content liquid.

The perspective view which shows roughly an example of the photosterilization system which concerns on this invention The perspective view which shows operation | movement of the flash light irradiation apparatus used for the photo-sterilization system based on this invention Front view of flash irradiation device The graph which shows the relationship between the irradiation number of the flashlight by the flashlight irradiation apparatus shown in FIG.2 and FIG.3, and the number of residual bacteria Side view showing the mechanism for transporting the liquid container to the flash irradiation device in an inverted state The perspective view which shows the jig for conveyance for conveying the container containing the liquid made into the inverted state The front view which shows the other example of the flash irradiation apparatus used for the photo-sterilization system based on this invention The figure which sterilizes the container with the liquid using the conventional flash irradiation device The graph which shows the relationship between the flash irradiation number by the flash irradiation apparatus shown in FIG. 8, and the number of residual bacteria

Explanation of symbols

1 Liquid container (infusion bottle)
2 Container body 2B Body 2N Neck 3 Content liquid 4 Lid (or stopper)
6 Space to be a head space 8 Reversing device 9 Flash irradiation device 10R Irradiator 10L Irradiator 11 Bar-shaped flash lamp 12 Vertical concave mirror C Cylindrical chamber 15 Reflector base material 16 Ultraviolet reflecting film

Claims (4)

Wavelength range that exerts sterilizing action on a liquid-filled container in which a space serving as a head space is formed between the liquid level of the content liquid filled in the container body made of an ultraviolet transmissive material and the lid or plug that closes the mouth of the container body A light sterilization system for sterilizing the inner surface of the liquid container and the content liquid by irradiating a flash with a flash irradiation device provided with a flash lamp that emits ultraviolet rays of the liquid, wherein the liquid container is placed in the mouth of the container body. The inner surface of the lid or stopper that is closed is immersed or tilted in the content liquid, and the flash irradiation device is configured to irradiate the container with the flash irradiation device from the side thereof . It is composed of a pair of irradiators arranged so as to face each other across the conveyance path for conveying the liquid containers in the inverted state or the inclined state in a line, and both irradiators are disposed between them. It consists of a rod-shaped flash lamp that irradiates flash light from the side to a plurality of incoming liquid containers and a bowl-shaped concave reflecting mirror, and the container body of the liquid container consists of a bottle having a neck portion. The light sterilization system is characterized in that the rod-like flash lamps of the two irradiators are arranged at positions facing the neck portion of the container body of the liquid-filled container coming between them from a close distance . The two illuminators are configured to move forward and backward in directions toward and away from each other, and when both are brought close to each other, a cylindrical chamber that confines the flash light of the rod-shaped flash lamp by both saddle-shaped concave reflectors light sterilization system of claim 1 Symbol mounting is configured as but is formed. A reversing device is installed in the transporting path so that the container containing liquid transported in an upright state is reversed to be in the inverted state or the inclined state, and the flash irradiation device is installed on the rear side of the reversing device. claim 1 or 2 Symbol placement photodisinfection systems. The trough concave reflecting mirror, No mounting trough according to claim 1, 2 or 3 SL has a configuration in which the UV-reflecting film is formed to have an infrared transmittance properties concave reflector substrate which is molded into the shape of Light sterilization system.

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