Container sterilization method, container sterilization device, and content filling system

Abstract

To provide a container sterilization method, container sterilizer, and content filling system capable of efficiently sterilizing the inner surface of a container and the top surface of the mouth of the container.SOLUTION: The container sterilization method includes: a conveying process of a container 100 having a mouth 110 to be filled with contents; a nozzle insertion process for inserting a nozzle 90 for spraying sterilant into the container 100 being conveyed; and a sterilant supply process for supplying sterilant to the container 100 in which the nozzle 90 has been inserted; and a top surface sterilization process for spraying sterilant from the nozzle 90 to a top surface 115 of the mouth 110 of the container 100 at least either before the nozzle insertion process or after the sterilant supply process.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a container sterilization method, a container sterilization device, and a content filling system. [Background technology]

[0002] The sterilized contents are filled into the sterilized container (PET bottle) in a sterile environment, and then Aseptic filling systems, which close containers with caps, are known. It is being done.

[0003] Specifically, in an aseptic filling system, a molded container is supplied to the aseptic filling system; In an aseptic filling system, the containers are sprayed with an aqueous solution of hydrogen peroxide as a sterilant. The container is then dried to sterilize the container, and the contents are then aseptically filled into the container. As a sterilization method, for example, a nozzle is inserted into a PET bottle and the PET bottle is sterilized. A sterilization method for sterilizing a bottle is known (see, for example, Patent Document 1).

[0004] By the way, when sterilizing a container, it is necessary to sterilize not only the inside of the container but also the top surface of the mouth of the container. It is required that. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 4526820 Summary of the Invention [Problem to be solved by the invention]

[0006] The present disclosure has been made in consideration of these points, and is directed to the inner surface of a container and the mouth of the container. A container sterilization method, a container sterilization device, and a content filling system capable of efficiently sterilizing the top surface The present invention aims to provide a stem. [Means for solving the problem]

[0007] A container sterilization method according to an embodiment of the present disclosure includes: A transporting step of transporting the container, and a step of inserting a nozzle for spraying a sterilizing agent into the container being transported. a nozzle inserting step of inserting the nozzle into the container; and a step of supplying the disinfectant to the container into which the nozzle is inserted. a step of supplying a sterilizing agent to the nozzle and a step of supplying a sterilizing agent to the nozzle before the step of inserting the nozzle and after the step of supplying the sterilizing agent. The disinfectant is sprayed from the nozzle onto at least one of the top surfaces of the mouth of the container. and a top surface sterilization step of sterilizing the top surface of the container.

[0008] In the container sterilization method according to one embodiment of the present disclosure, in the top surface sterilization step, The distance between the top surface of the mouth and the tip of the nozzle is 2 mm or more and 100 mm or less. Good too.

[0009] In the container sterilization method according to one embodiment of the present disclosure, in the top surface sterilization step, The time for spraying the germicide from the nozzle may be 0.1 seconds or more and 5.0 seconds or less.

[0010] In the container sterilization method according to one embodiment of the present disclosure, the nozzle is a small diameter portion configured as a small diameter portion, the small diameter portion being located upstream of the small diameter portion in the flow direction of the disinfectant, a large diameter portion having an inner diameter larger than that of the small diameter portion; and a portion between the large diameter portion and the small diameter portion, The nozzle may include a reduced diameter portion whose inner diameter gradually decreases toward the downstream side in the flow direction.

[0011] In the container sterilization method according to one embodiment of the present disclosure, an inner diameter of the mouth portion is defined as d1, If the outer diameter of the nozzle is D1, 2mm≦d1-D1≦25mm The following relationship may be satisfied.

[0012] In the container sterilization method according to one embodiment of the present disclosure, the nozzle is A flange portion protruding in a radial direction and a nozzle tip portion protruding from a periphery of the flange portion and an annular wall portion that is configured to be in contact with the nozzle when the nozzle is inserted into the container. , may cover at least a portion of the outer surface of the mouth.

[0013] In the container sterilization method according to one embodiment of the present disclosure, an inner diameter of the wall portion is d2, When the outer diameter of the mouth at the upper end of the mouth is D2, 5mm≦d2-D2≦30mm The following relationship may be satisfied.

[0014] In the container sterilization method according to one embodiment of the present disclosure, A tapered surface may be formed between the outer surface and the inner surface.

[0015] In the container sterilization method according to one embodiment of the present disclosure, the mouth of the container has a screw portion and and a support ring provided below the threaded portion, and the nozzle is inserted into the container. At that time, the support ring is arranged in a vertical cross section along a horizontal direction from the tip of the nozzle. a first imaginary line extending radially outward from the tip of the nozzle along the tapered surface; It may be disposed between the first imaginary line and a second imaginary line extending outward.

[0016] In the container sterilization method according to one embodiment of the present disclosure, in the sterilizing agent supplying step, The sterilizing agent is supplied to the container while the support ring is held from below. This is also fine.

[0017] In the container sterilization method according to one embodiment of the present disclosure, The method may further include a preheating step of heating the container between the supplying step and the supplying step.

[0018] In the container sterilization method according to one embodiment of the present disclosure, in the preheating step, The container may be heated by hot air or infrared radiation.

[0019] The container sterilization device according to one embodiment of the present disclosure is a container having a mouth portion through which contents are filled. a conveying mechanism for conveying the container; and a device for supplying a sterilizing agent to the container being conveyed by the conveying mechanism. a supply unit for supplying the disinfectant to the container, the supply unit having a nozzle for spraying the disinfectant, The nozzle supplies the sterilizing agent to the container while being inserted into the container. The disinfectant is applied to the top surface of the mouth of the container when the disinfectant is not inserted into the container. This is a container sterilization device that sprays

[0020] In the container sterilization device according to the embodiment of the present disclosure, the nozzle is sterilized against the top surface. When spraying the fungicide, the distance between the top surface of the mouth and the tip of the nozzle is 2 mm or more. It may be 100 mm or less.

[0021] In the container sterilization device according to the embodiment of the present disclosure, the nozzle is sterilized against the top surface. The time for spraying the fungicide may be from 0.1 seconds to 5.0 seconds.

[0022] In the container sterilization apparatus according to the embodiment of the present disclosure, the nozzle has a tip a small diameter portion configured as a small diameter portion, the small diameter portion being located upstream of the small diameter portion in the flow direction of the disinfectant, a large diameter portion having an inner diameter larger than that of the small diameter portion; and a portion between the large diameter portion and the small diameter portion, The nozzle may include a reduced diameter portion whose inner diameter gradually decreases toward the downstream side in the flow direction.

[0023] In the container sterilization apparatus according to one embodiment of the present disclosure, the inner diameter of the mouth portion is defined as d1, If the outer diameter of the nozzle is D1, 2mm≦d1-D1≦25mm The following relationship may be satisfied.

[0024] In the container sterilization device according to one embodiment of the present disclosure, the nozzle has A flange portion protruding in a radial direction and a nozzle tip portion protruding from a periphery of the flange portion and an annular wall portion that is configured to be in contact with the nozzle when the nozzle is inserted into the container. , may cover at least a portion of the outer surface of the mouth.

[0025] In the container sterilization apparatus according to one embodiment of the present disclosure, an inner diameter of the wall portion is d2, When the outer diameter of the mouth at the upper end of the mouth is D2, 5mm≦d2-D2≦30mm The following relationship may be satisfied.

[0026] In the container sterilization device according to the embodiment of the present disclosure, A tapered surface may be formed between the outer surface and the inner surface.

[0027] In the container sterilization device according to the embodiment of the present disclosure, the mouth of the container has a screw portion and and a support ring provided below the threaded portion, and the nozzle is inserted into the container. At that time, the support ring is arranged in a vertical cross section along a horizontal direction from the tip of the nozzle. a first imaginary line extending radially outward from the tip of the nozzle along the tapered surface; It may be disposed between the first imaginary line and a second imaginary line extending outward.

[0028] In the container sterilization device according to the embodiment of the present disclosure, the conveying mechanism holds the container. The support ring may further include a holding member that holds the support ring from below.

[0029] In the container sterilization device according to the embodiment of the present disclosure, the supply unit The container may be heated prior to dispensing the sterilant.

[0030] In the container sterilization device according to the embodiment of the present disclosure, the supply unit supplies hot air or infrared rays. The vessel may be heated by

[0031] A content filling system according to an embodiment of the present disclosure includes a container sterilization device according to an embodiment. a filling device for filling the container with a content; and a capping device for closing the container with a cap. A content filling system comprising a cap mounting device. Effect of the Invention

[0032] According to the present disclosure, the inner surface of a container and the top surface of the mouth of the container can be efficiently sterilized. . [Brief description of the drawings]

[0033] [Figure 1] FIG. 1 is a schematic plan view showing a content filling system according to the present embodiment. [Diagram 2] FIG. 2 is a schematic cross-sectional view showing the container sterilization device according to the present embodiment. [Diagram 3]FIG. 3 is a schematic plan view showing the container sterilization device according to the present embodiment. [Figure 4] FIG. 4 is a schematic front view showing an enlarged view of a nozzle of the container sterilization device according to the present embodiment. [Diagram 5] FIG. 5 is a cross-sectional view illustrating the relationship between the nozzle and the bottle of the container sterilization device according to this embodiment. [Figure 6] FIG. 6 is a flowchart showing a content filling method using the content filling system according to this embodiment. [Figure 7] FIG. 7 is a schematic front view showing a content filling method using the content filling system according to this embodiment. [Figure 8] FIG. 8 is a flow chart showing a modified example of the content filling method using the content filling system according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 illustrates an embodiment.

[0035] (Contents filling system) First, referring to FIG. 1, a content filling system (aseptic filling system, aseptic filling system) according to an embodiment will be described. This article explains the tick filling system.

[0036] The content filling system 10 shown in FIG. 1 has an opening 110 (see FIG. 4) through which the content is filled. The system fills a bottle (container) 100 with a beverage or other contents. 100 is a method for biaxially stretching and blow molding a preform produced by injection molding a synthetic resin material. The bottle 100 can be produced by direct blow molding. The bottle 100 may be made of a thermoplastic resin, particularly PE (polyethylene PP (polypropylene), PET (polyethylene terephthalate), or PEN ( It is preferable to use polyethylene naphthalate as the container. The container may be a container, a can, paper, a pouch, or a composite container of these. An example in which a bottle is used as a container will be described.

[0037] As shown in FIG. 1, the content filling system 10 includes a bottle forming section 30 and a sterilizing device (for containers). A sterilization device 11, an air rinse device 14, a sterile water rinse device 15, and a filling device (filler 1) 20, a capping device (capper, seaming and capping machine) 16, and a product bottle conveyor The bottle molding section 30, the sterilization device 11, the air-rinse device 14, Sterile water rinsing device 15, filling device 20, capping device 16 and product bottle carrying section 2 2 are arranged in this order from the upstream side to the downstream side along the conveying direction of the bottle 100. In addition, the adjustment and conveyance unit 5, the sterilization device 11, the air rinse device 14, and the sterile water rinse device 15 are provided. Between the device 15, the filling device 20 and the capping device 16, the bottles are A plurality of conveyor wheels 12 are provided for conveying the object 100.

[0038] The bottle molding section 30 sequentially receives the preforms 100a from the outside and molds the bottles 100. After molding, the molded bottles 100 are transported to the sterilizer 11 and supplied. In this manner, the bottle molding section 30 receives the preform 100a and The content filling system 10 is configured to form the mold 100. The process includes supplying the preform 100a, molding the bottle 100, and then dispensing the contents into the bottle 100. The steps of filling the container with the substance and closing the container can be carried out continuously. In this case, From the content filling system 10, the bottle 100 is not in the form of a large volume bottle, but in the form of a small volume bottle. Since the preform 100a can be transported in the form of a simple structure, the transportation cost can be reduced. Cut.

[0039] The bottle molding section 30 includes a preform conveying section 31 for conveying the preform 100a, and a A blow molding machine is used to mold the bottle 100 by blow molding the reform 100a. It has a molding section 32 and a bottle conveying section 33 that conveys the molded bottles 100.

[0040] Among these, the preform conveying section 31 conveys the preforms supplied from the preform supply device 1. a receiving section 34 for receiving the preforms 100a supplied via the conveyor 2; Receive the preform 100a from 4 and heat the preform 100a while transporting it. The preform 100a heated by the heating unit 35 is received and blown. The receiving section 34 includes a transfer section 36 that transfers the preform to the forming section 32. A preform sterilization device 34a is provided for sterilizing the preform 100a. The foam sterilization device 34a sterilizes the preform 10 with a mist or gas of hydrogen peroxide solution. The preform 100a is sterilized by spraying the preform 100a (pre-sterilization). .

[0041] The sterilizing agent for sterilizing the preform 100a should have the property of inactivating microorganisms. For example, in addition to hydrogen peroxide, peracetic acid, acetic acid, pernitric acid, nitric acid, and chlorine-based chemicals are sufficient. agents, sodium hydroxide, potassium hydroxide, ethyl alcohol, isopropyl alcohol, etc. Alcohols, chlorine dioxide, ozone water, acid water, and surfactants may be used alone. Two or more of these may be used in combination.

[0042] The heating section 35 is provided with a heater 35a for heating the preform 100a. The heater 35a may be, for example, an infrared heater. The preform 100a is heated to, for example, about 90° C. or higher and 130° C. or lower. The temperature of the mouth of the preform 100a is kept below 70°C to prevent deformation. can be.

[0043] The blow molding section 32 includes a mold (not shown), and the preform 1 is blown using this mold. The bottle 100 is formed by blow molding the bottle 100a.

[0044] In addition, between the bottle molding section 30 and the sterilization device 11, a bottle conveying section of the bottle molding section 30 is provided. The adjusting and conveying unit 5 receives the bottle 100 from the sterilizing device 11 and delivers the bottle 100 to the sterilizing device 11. At least a part of the adjustment transport section 5 is an atmosphere blocking chamber, which will be described later. In the illustrated example, the adjustment conveyance unit 5 is a component of the adjustment conveyance unit 5 described later. The chamber 70a is disposed so as to straddle the atmospheric blocking chamber 70b described later. In this way, the atmosphere blocking chamber in which at least a part of the adjustment conveying unit 5 is accommodated By providing 70b, the sterilization occurring in the sterilizing agent spray chamber 70c described later can be prevented. The gas or mist of the microbial agent or a mixture thereof is injected into the bottle molding section 30 as described below. This can prevent the molded part from flowing into the molding chamber 70a.

[0045] In the illustrated example, the adjusting and conveying unit 5 and the bottle conveying unit 3 of the bottle molding unit 30 A single conveying wheel 12 is provided between the bottle molding section 30 and the bottle forming section 30. Between the blow molding section 32 and the sterilization device 11, there is a bottle conveying section 33 of the bottle molding section 30. A single conveying wheel 12 and a conditioning conveying section 5 are provided. A plurality of conveying wheels 12 are provided between the bottle conveying section 33 of the bottle molding section 30 and the bottle conveying section 33 of the bottle molding section 30. In comparison with the case where the content filling system 10 is used, the content filling system 10 can be made compact. Although not shown in the figure, an adjustment device is provided between the blow molding section 32 of the bottle molding section 30 and the sterilization device 11. Only the conveying section 5 may be provided. In this case, the content filling system 10 is further compacted. It can be made into a project.

[0046] The sterilizer 11 sterilizes the inside of the bottle 100 by spraying a sterilizing agent into the bottle 100. This allows the bottle 100 to be sterilized with a sterilizing agent before the contents are filled. As the sterilizing agent, for example, an aqueous hydrogen peroxide solution is used. A mist or gas of the hydrogen peroxide solution is generated, and the mist or gas adheres to the inner and outer surfaces of the bottle 100. In this way, the bottle 100 is sterilized with a mist or gas of the hydrogen peroxide solution. Therefore, the inside and outside surfaces of the bottle 100 are sterilized evenly.

[0047] The air rinse device 14 supplies sterile heated air or room temperature air to the bottle 100. This allows the hydrogen peroxide to be activated while removing foreign matter, hydrogen peroxide, etc. from the bottle 100. In addition, if necessary, a low concentration of hydrogen peroxide may be added to sterilized air at room temperature. The hydrogen peroxide may be gasified by mixing it with the condensed mist and then supplied to the bottle 100. The configuration of the air-rinse device 14 is substantially the same as that of the sterilization device 11 shown in FIG. 2, which will be described later. You can do that.

[0048] The sterile water rinsing device 15 rinses the bottle 100 with the sterile hydrogen peroxide. Then, the bottles are washed with sterile water at 15℃ to 85℃. The hydrogen peroxide adhering to the surface is washed away and foreign matter is removed.

[0049] The filling device 20 is a device for filling a bottle 100 with pre-sterilized liquid from the mouth 110 of the bottle 100 into the bottle 100. In this filling device 20, the contents are filled into the empty bottle 100. In the filling device 20, a plurality of bottles 100 are rotated and conveyed. While this is happening, the contents are filled into the bottle 100.

[0050] The cap attachment device 16 attaches the cap 80 to the mouth 110 of the bottle 100. In this manner, the bottle 100 is capped. The mouth 110 of the bottle 100 is closed by a cap 80 to prevent outside air and microorganisms from entering the bottle 100. In the capping device 16, the filled containers are sealed to prevent intrusion. The cap 80 is attached to the mouth 110 of the bottle 100 while the bottle 100 rotates (revolves). In this manner, the cap 80 is attached to the mouth portion 110 of the bottle 100, thereby making the product bottle Torr 101 is obtained.

[0051] The cap 80 is sterilized in advance by the cap sterilizer 18. 8 is located, for example, outside the sterile chamber 70f (described later) and in the vicinity of the cap mounting device 16. In the cap sterilization device 18, the contents are transferred from the outside of the content filling system 10. The caps 80 are collected in advance and lined up toward the cap mounting device 16. The cap 80 is transported to the capping device 16 by mistake. After the toner or gas is sprayed onto the inner and outer surfaces of the cap 80, it is dried with hot air. It is sterilized.

[0052] The product bottle carrying section 22 carries the product bottles to which the caps 80 have been attached by the cap attachment device 16. The pipe 101 is continuously conveyed out to the outside of the content filling system 10.

[0053] The content filling system 10 includes a molding chamber 70a and an atmosphere blocking chamber 70. b, a disinfectant spray chamber 70c, a first disinfectant removal chamber 70d, and a second disinfectant removal chamber 70e. The chamber 70e has a sterile chamber 70f and an exit chamber 70g. The blow molding section 32 of the bottle molding section 30 is accommodated inside the molding section chamber 70a, and the atmosphere is At least a part of the conditioning conveying unit 5 is accommodated inside the atmosphere cutoff chamber 70b.

[0054] Here, a camera may be provided inside the atmosphere blocking chamber 70b. A camera may be used to inspect the bottle 100 for molding defects. A thermometer may be provided inside the atmosphere cutoff chamber 70b. The temperature of the bottle 100 before sterilization may be measured by this thermometer. The temperature of the bottle 100 is one of the important factors that affect the sterilization efficiency of the bottle 100. By keeping the temperature of the bottle 100 at an appropriate temperature, the sterilization efficiency of the bottle 100 is improved. For this reason, the temperature of the bottle 100 before sterilization is measured by a thermometer. This allows the temperature of the bottle 100 to be kept at an appropriate temperature during sterilization, The sterilization efficiency can be improved.

[0055] The sterilizer 11 is housed inside the sterilizing agent spray chamber 70c, and the first sterilizing agent removal chamber The air rinse device 14 is housed inside the chamber 70d, and the second sterilant removal chamber 70e The sterile water rinsing device 15 is housed inside. A pressure gauge 71 (see FIG. 2) is attached to measure the pressure inside the sterilant spray chamber 70c. is.

[0056] Furthermore, the above-mentioned filling device 20 and capping device are installed inside the sterile chamber 70f. 16 is accommodated in the outlet chamber 70g, and the product bottle carrying section 22 is accommodated inside the outlet chamber 70g. Among these, at least inside the sterile chamber 70f, a pressure measuring device for measuring the internal pressure of the filling environment is provided. The molding chamber 70a and the atmosphere shielding chamber 70b are also provided with a measuring device (not shown). 70b, a first sterilant removal chamber 70d, a second sterilant removal chamber 70e, and / or The outlet chamber 70g may also be fitted with a pressure gauge for measuring the internal pressure.

[0057] Such a content filling system 10 may comprise, for example, an aseptic filling system. In this case, the disinfectant spray chamber 70c, the first disinfectant removal chamber 70d, the second disinfectant removal chamber 70e, The interiors of the removal chamber 70e, the sterile chamber 70f and the exit chamber 70g are kept sterile. In the illustrated example, a gap is provided between the sterilizer 11 and the air rinse device 14. Between the conveying wheel 12, the air rinse device 14 and the sterile water rinse device 15 The conveying wheels 12 are arranged in a sterile space surrounded by chamber walls 12a. In addition, a sterile zone in a sterile state may be provided downstream of the outlet chamber 70g. A chamber (not shown) may be provided connecting the non-sterile zone to the non-sterile zone. good.

[0058] Next, the sterilization device (container sterilization device) 11 according to this embodiment will be described in detail with reference to FIG. FIG. 2 is a schematic cross-sectional view showing the sterilization device 11. As shown in FIG. The station 11 includes a conveying mechanism 40 for conveying the bottles 100, and a conveying mechanism 40 for conveying the bottles 100. The present embodiment includes a supply unit 50 for supplying a sterilizing agent to the bottle 100. The conveying mechanism 40 includes a rotatable wheel 41 and a bottle 100 connected to the wheel 41. and a gripper (holding member) 42 that holds and transports the

[0059] Of these, the wheel 41 is configured to rotate by power from a predetermined drive source. The wheel 41 is mounted horizontally on a rotating shaft 44 that stands on the machine base 43. A support 45 extends upward, and a manifold 5 (to be described later) of a supply unit 50 is attached to the upper end of the support 45. 2 are linked.

[0060] In addition, another support 48 extends upward from the surface of the wheel 41, and a ball is attached to the top of this support 48. The gripper 42 of the torque converter 100 is attached to the support 48. The support 48 and the gripper 42 are aligned at a predetermined pitch. A number of grippers 42 are arranged around the wheel 41 by a gripper. It is connected to the wheel 41 and rotates together with the rotation of the wheel 41. A tunnel 49 is provided around the bottle 100 held by the gripper 42. In the tunnel 49, the disinfectant sprayed from the nozzle 90 described later is retained. By passing through the tunnel 49, the outer surface of the bottle 100 is completely coated. The equipment is designed to be sterilized without any contamination.

[0061] In addition, by providing the tunnel 49, the outer surface of the bottle 100 can be sterilized efficiently. However, the tunnel 49 may not be provided. For example, the wheel 41 and The wheels arranged on both sides of the wheel 41 (in the example shown in FIG. 1, the sterilization device 11 A chamber wall is provided between the conveying wheels 12) arranged on both sides of the conveying wheels 12, and the chamber wall By forming a space with a compact volume, the outer surface of the bottle 100 can be efficiently sterilized. It is also possible.

[0062] Next, the supply unit 50 of the sterilization device 11 will be described. The supply unit 50 supplies the disinfectant to at least the inner surface of the bottle 100. The supply unit 50 may be a device for spraying a disinfectant onto the inner and outer surfaces of the container. The nozzle 90 is movable in the vertical direction. The gripper 90 is attached to the support 48 and has an opening at its tip 90a (see FIGS. 4 and 5). 4 and 5 ) of the bottle 100 held by the holder 42. The nozzle 90 is configured to be inserted into the bottle 100 by moving in the vertical direction. With this configuration, when the wheel 41 rotates, the nozzle 90 is gripped by the The bottle 100 held by the roller 42 rotates around the rotation axis 44, and the conveying mechanism 40 The bottle 100 is conveyed by the nozzle 42, and the disinfectant (hydrogen peroxide) is dispensed therein. The nozzle 102 is adapted to blow a gas (raw gas) into the bottle 100.

[0063] By the way, the gripper (holding member) 42 holds the support ring 112 of the bottle 100 downward. That is, the gripper 42 is preferably supported from the support ring 112. It is preferable to grip the lower part. Here, the nozzle 90 descends and the bottle 1 When the disinfectant is blown into the bottle 100, the bottle 100 is pushed downward by the air pressure of the disinfectant. Therefore, when the gripper 42 grips the portion below the support ring 112, In the case where the internal pressure of the bottle 100 is increased by increasing the supply air volume of the sterilizing agent, Even if the bottle 100 is moved downward, the horizontal position of the bottle 100 can be prevented from shifting downward. This allows the bottle 100 to be handed over to the next wheel without any problems.

[0064] The supply section 50 also includes a manifold 52 into which hydrogen peroxide gas flows. A conduit 53 extends upward from the upper center of the ferrule 52 on the extension line of the axis of the pivot shaft 44. The tube 53 is connected to the machine base 43 by a bearing 5 in a frame member of the germicide spray chamber 70c. 4. As a result, the manifold 52 is integral with the wheel 41 and is supported by the pivot 44. It is possible to rotate around the

[0065] A hydrogen peroxide gas supply pipe 55 runs from around the manifold 52 toward each gripper 42. The nozzle 90 described above is attached to the tip of each supply pipe 55.

[0066] A conduit 57 is connected to the upper end of the conduit 53 of the manifold 52 via a seal member 56. The conduit 53 rotates with the manifold 52 relative to the conduit 57, and the seal member 56 is disposed on both sides of the conduit 53. The conduit 57 is provided with a conductor to prevent leakage of hydrogen peroxide gas from the joint between the conduits 53 and 57. A valve 58a is provided to control the passage of hydrogen peroxide gas through the conduit 5. 7 includes a pressure gauge P for measuring the pressure inside the nozzle 90, a pressure gauge B for measuring the concentration of hydrogen peroxide gas, A concentration meter C measures the temperature of hydrogen peroxide gas, a thermometer T measures the airflow rate of hydrogen peroxide gas, and An airflow meter F is installed to measure the airflow.

[0067] A blower 60 and a HEPA (High Efficiency Particulate Air Filter) are installed upstream of the duct 57. er) A gas supply device consisting of a filter 61 and an electric heater 62 is provided. A hydrogen peroxide adding device 63 is installed in either the front or rear or both of the front and rear. When the device 63 is installed downstream of the electric heater 62, the hydrogen peroxide adding device 63 is It is recommended to add hydrogen peroxide in gas form to the piping. Otherwise, the residual amount of hydrogen peroxide in the bottle 100 will tend to increase. When the hydrogen peroxide adding device 63 is installed upstream of the electric heater 62, the hydrogen peroxide conversion device Hydrogen peroxide may be added to the piping in liquid form, such as by spraying. In that case, the electric heater 62 The set temperature is preferably set to a value equal to or higher than the boiling point of the sterilizing agent to be supplied. Depending on the strength, the temperature may be set to 100°C or higher (preferably 130°C or higher). Another electric heater is installed further upstream of the addition device 63 to heat the mixture with sterile hot air (80°C or higher). Alternatively, the hydrogen peroxide adding device 63 may be a heater. It can be installed both in front of and behind the 62.

[0068] Here, if the material of the bottle 100 is PET (polyethylene terephthalate), Hydrogen is easily absorbed and residual values ​​tend to increase, but the material is HDPE (high density polyethylene). In this case, the amount of hydrogen peroxide adsorbed is extremely small, at 1 / 5 to 1 / 20. If the material is HDPE (high density polyethylene), hydrogen peroxide is gasified to create sterile air. In addition to the method of adding hydrogen peroxide, a method of spraying hydrogen peroxide and mixing it with air may also be adopted. The hydrogen peroxide gas is fed into manifold 52 through conduit 57 and then into supply tube 55. The disinfectant is peroxy acid, which is then sprayed from the nozzle 90 into the bottle 100 to disinfect the bottle 100. It is acceptable to use a solution containing 1% or more hydrogen peroxide. 35% hydrogen peroxide diluted with ethanol. It is also possible to use the above.

[0069] In addition, when hydrogen peroxide is used as a disinfectant, the stabilizer contained in the hydrogen peroxide component As a result, the nozzle 90 may become clogged due to the stabilizer accumulated in the conduit 57. In order to prevent clogging, a cleaning liquid such as water, alkali, or acid is poured into the supply unit 50. It is recommended to use a structure that allows cleaning in place (CIP). A conduit 64 for CIP and a valve for controlling the passage of cleaning liquid in the conduit 64 are provided upstream of the valve 58a. The CIP conduit 64 is connected to the hydrogen peroxide adding device 63. Alternatively, the CIP conduit 64 may be installed at either the front or back of the device. Alternatively, the chemical solution used in the CIP may be directly attached to the hydrogenation device 63. In order to prevent contact with the HEPA filter 61 and the electric heater 62, It is preferable to prevent the liquid from flowing upstream. For example, in this case, the mechanism of the blower 60, etc. It is advisable to provide a valve between the vessel and the CIP conduit 64.

[0070] Next, the nozzle 90 of the supply unit 50 will be described in more detail. The pipe 90 is inserted into the bottle 100 to create a slight positive pressure in the bottle 100. In this case, the nozzle 90 is inserted into the bottle 100. The static pressure in the conduit 57 connected to the bottle 90 and the pressure in the bottle 100 are approximately the same. Therefore, by inserting the nozzle 90 into the bottle 100, the inside of the bottle 100 is made to have a slight positive pressure. When the nozzle 90 is inserted into the bottle 100, the static pressure in the conduit 57 increases, and the sterilant sprayed from the nozzle 90 enters the bottle 100. This allows the flow rate of the air to be increased when it is blown out from the nozzle 110. When a disinfectant is sprayed into the bottle 100 from the bottle 90, the temperature of the bottle 100 is efficiently increased. As described above, the pressure in the bottle 100 can be controlled by the static pressure in the conduit 57. Therefore, the pressure gauge P attached to the conduit 57 measures the pressure in the bottle 10. The pressure within 0 can be measured.

[0071] The nozzle 90 maintains the pressure inside the bottle 100 at 1 kPa or more and 20 kPa or less. The pressure in the bottle 100 is maintained at 1 kPa or more by the nozzle 90. The flow rate of the sprayed sterilant when it is sprayed out from the mouth 110 of the bottle 100 is increased. Therefore, the temperature of the bottle 100 can be increased more effectively. 90 maintains the pressure inside the bottle 100 at 20 kPa or less, thereby thinning the bottle 100. Even if the bottle 100 becomes thicker, deformation of the bottle 100 can be suppressed.

[0072] At this time, the nozzle 90 is inserted into the bottle 100, so that the pressure in the nozzle 90 The force is 0.01 kPa or more and 2.0 kPa or less (preferably, 0.05 kPa or more and 1.5 kPa or less). That is, by inserting the nozzle 90 into the bottle 100, the The static pressure in the pipe 57 is set to 0.01 kPa or more and 2.0 kPa or less (preferably, 0.05 kPa or less). Increase the pressure in the nozzle 90 by 0.01 kPa or more. As a result, the sterilizing agent sprayed from the nozzle 90 is blown out from the mouth 110 of the bottle 100. It can increase the flow rate when discharging, and improve the temperature of the bottle 100 more effectively. In addition, by limiting the pressure rise in the nozzle 90 to 2.0 kPa or less, Prevents the bottle 100 from being deformed when the sterilant is sprayed from the nozzle 90. It is possible.

[0073] Here, in the sterilization device 11, among the multiple nozzles 90, one is inserted into the bottle 100. The percentage of nozzles 90 that are in a non-contact state may be 56% or more and 86% or less. As shown in FIG. 3, among the bottles 100 conveyed by the conveying mechanism 40, the nozzle 90 The trajectory of the bottle 100 inserted inside forms a circular arc (indicated by the dotted area). The central angle (in other words, the rotation angle at which one nozzle 90 rotates while inserted inside the bottle 100) The rotation angle θ1 is preferably 200° or more and 310° or less. 3. By setting the angle .theta. 3 to .degree. or more, the number of nozzles 90 inserted into the bottle 100 can be increased. This effectively increases the static pressure in the conduit 57. Since the central angle θ1 is 310° or less, the bottle 100 is easily transferred to the sterilization device 11. The feeding wheel 12 and the conveying wheel 12 receiving the bottles 100 from the sterilizing device 11 interfere with each other. In addition, it is possible to eliminate delivery failures caused by the shaking of the container. "Container shaking" refers to the shaking of the bottle 100 caused by the sterilant sprayed from the nozzle 90. This means that the

[0074] As shown in FIG. 4, the nozzle 90 has a small diameter portion 9 1, which is located upstream of the small diameter portion 91 in the flow direction of the disinfectant and has an inner diameter larger than that of the small diameter portion 91. The large diameter portion 92 is located between the large diameter portion 92 and the small diameter portion 91, and faces downstream in the flow direction of the disinfectant. The nozzle 9 includes a reduced diameter portion 93 whose inner diameter gradually decreases as the nozzle 9 The flow rate of the disinfectant sprayed can be increased from 0.

[0075] Here, the inner diameter dn1 of the small diameter portion 91 may be, for example, 2 mm or more and 15 mm or less. , preferably, 3 mm or more and 10 mm or less. As a result, the sterilant sprayed from the nozzle 90 is not only directed to the inner surface of the bottle 100 but also to the inner surface of the bottle 100. Therefore, the ink can be efficiently applied not only to the inner surface of the bottle 100 but also to the outer surface. In addition, the outer surface of the bottle 100 can also be sterilized. By being 15 mm or less, the sterilizing agent can be effectively sprayed onto the inner surface of the bottle 100. As described below, the bottle 100 can be sterilized by heating it to a desired temperature. The inner diameter dn2 of the large diameter portion 92 is, for example, 5 mm or more and 30 mm or less. Good too.

[0076] In addition, the length of the small diameter portion 91 of the nozzle 90 is preferably 5 mm or more and 400 mm or less. Since the length of the small diameter portion 91 is 5 mm or more, the propulsion force of the sterilizing gas is maintained satisfactorily. In addition, since the length of the small diameter portion 91 is 400 mm or less, the nozzle 90 This can prevent the length of the nozzle 90 from becoming too long, and shortens the time it takes for the nozzle 90 to rise and fall. Therefore, it is possible to keep the nozzle 90 in the fully lowered state for as long as possible. Here, the internal pressure of the bottle 100 and the static pressure in the conduit 57 connected to the nozzle 90 are The pressure is maximum when the nozzle 90 is fully lowered. The length of the nozzle 90 is 400 mm or less, so that the internal pressure of the bottle 100 and the nozzle This makes it possible to maintain the state in which the static pressure in the conduit 57 is at its maximum for as long as possible.

[0077] The nozzle 90 also includes a flange portion 95 that protrudes radially from the nozzle 90, and a flange An annular wall portion 96 is provided protruding from the periphery of the portion 95 toward the tip 90a of the nozzle 90. In the case of such an umbrella-shaped nozzle 90, the hot air supplied into the bottle 100 is blown into the bottle. The hot air blown from the mouth 110 of the bottle 100 to the outside of the bottle 100 is guided to the outer periphery of the mouth 110. This allows the mouth portion 110 to be preheated and sterilized effectively. Therefore, the boundary portion between the outer surface and the inner surface of the bottle 100 (the top surface 115 of the mouth portion 110 (FIG. 5) The present invention can efficiently and reliably sterilize the above-mentioned substances.

[0078] As shown in FIG. 5, the nozzle 90 of the flange portion 95 is inserted into the bottle 100. When the bottle 100 is opened, the facing surface 95a facing the mouth portion 110 of the bottle 100 is separated from the mouth portion 110. This allows the bottle 100 to be inserted through the mouth 110 of the bottle 100. The hot air blown out of the nozzle 100 can be effectively guided to the outer periphery of the mouth portion 110. The radius of curvature R of the curved surface 95b may be not less than 1 mm and not more than 5 mm.

[0079] Next, the relationship between the nozzle 90 and the mouth portion 110 of the bottle 100 will be described in more detail. Here, the mouth portion 110 of the bottle 100 has a screw portion 111 that is screwed into the cap 80, and a screw The support ring 112 is disposed below the portion 111.

[0080] As mentioned above, the nozzle 90 is configured to be inserted into the bottle 100 . As shown in FIG. 5, when the nozzle 90 is inserted into the bottle 100, The insertion amount L1 of the nozzle 90 into the bottle 100 in the direction along the central axis of the bottle 100 is, for example, For example, the insertion amount L1 may be 5 mm or more and 50 mm or less. When the nozzle 90 is inserted into the bottle 100, the pressure inside the bottle 100 is effectively increased. In addition, since the insertion amount L1 is 50 mm or less, the nozzle 90 The vertical travel distance can be shortened, shortening the work time required to supply disinfectant. In addition, since the insertion amount L1 is 50 mm or less, the bottom of the bottle 100 This prevents high-temperature disinfectant from being sprayed onto the bottle. This can prevent the bottom of the filter 100 from being deformed.

[0081] In addition, when the inner diameter of the mouth portion 110 of the bottle 100 is d1 and the outer diameter of the nozzle 90 is D1, In that case, 2mm≦d1-D1≦25mm It is preferable that the following relationship is satisfied. This allows the pressure inside the bottle 100 to be effectively released when the nozzle 90 is inserted into the bottle 100. In addition, the sterilant sprayed from the nozzle 90 is sprayed onto the mouth of the bottle 100. The flow rate when the liquid is blown out from the nozzle 110 can be increased, and the temperature of the bottle 100 can be increased. In addition, when the sterilizing agent is sprayed from the nozzle 90, the sterilizing agent is sprayed from the nozzle 90. In this specification, the term "nozzle" refers to a nozzle that is formed in a nozzle hole. The "outer diameter D1 of the nozzle 90" refers to the outer diameter of the nozzle 90 when the nozzle 90 is inserted into the bottle 100. In this case, it refers to the outer diameter of the part located inside bottle 100.

[0082] When the nozzle 90 is inserted into the bottle 100, the wall portion 96 is in contact with the outer surface of the mouth portion 110. The bottle 100 is configured to cover at least a portion of the liquid. The hot air is blown from the mouth 110 of the bottle 100 to the outside of the bottle 100. This allows the food to be guided more reliably to the outer periphery of the mouth portion 110. This makes it possible to kill bacteria more effectively.

[0083] In this case, the wall portion 96 and the mouth portion 97 are in contact with each other in the vertical direction (the direction along the central axis of the bottle 100). The overlap amount L2 with the portion 110 may be, for example, 1 mm or more and 25 mm or less. By making the length L2 1 mm or more, the flow rate of the hot air guided to the outer periphery of the opening 110 is increased. Therefore, it is possible to attach the sterilizing gas to the screw portion 111 having a complicated shape. In addition, by setting the overlap amount L2 to 25 mm or less, the nozzle can be sterilized. When the disinfectant was sprayed from the nozzle 90 into the bottle 100, the pressure in the bottle 100 increased and Therefore, even if the bottle 100 is made thin-walled, Therefore, deformation of the bottle 100 can be suppressed. By making the distance 5 mm or less, the moving distance of the nozzle 90 in the vertical direction can be shortened. This allows the time required for supplying the disinfectant to be reduced. If the bottle 100 is placed too close to the ring 112, the internal pressure of the bottle 100 will increase and the bottle 100 will deform. Therefore, the wall portion 96 is positioned at least above the support ring 112. It is preferable that

[0084] The wall 96 may be brought closer to the gripper 42 to increase the internal pressure of the bottle 100. In this case, the distance L3 between the wall portion 96 and the gripper 42 in the vertical direction is 1 mm or more and It is preferable that the distance L3 between the wall portion 96 and the gripper 42 is 1 mm or less. By being above the pressure, it is possible to prevent the pressure inside the bottle 100 from becoming too high. In addition, since the distance L3 between the wall portion 96 and the gripper 42 is 25 mm or less, The internal pressure required for sterilization can be sufficiently secured. Since the distance L3 is 25 mm or less, the flow rate of the hot air guided to the outer periphery of the opening 110 is Therefore, the sterilizing gas can be injected into the screw portion 111 having a complicated shape. It can be attached and sterilized.

[0085] The inner diameter of the wall 96 is d2, and the outer diameter of the mouth 110 at the upper end of the mouth 110 is D2. In this case, 5mm≦d2-D2≦30mm It is preferable that the following relationship is satisfied. This makes it possible to effectively increase the flow rate of hot air guided to the outer periphery of the opening 110. In addition, when the sterilizing agent is sprayed from the nozzle 90 into the bottle 100, It is possible to effectively prevent the pressure from becoming too high, and when the bottle 100 is made thin-walled, Even in this case, deformation of the bottle 100 can be suppressed.

[0086] In addition, a tapered surface 90c is provided between the tip 90a of the nozzle 90 and the outer surface 90b of the nozzle 90. As a result, the hot air blown into the bottle 100 is blown through the mouth of the bottle 100. When the hot air is blown out from the portion 110 to the outside, the hot air blown onto the tapered surface 90c The direction of the wind changes, and the hot air blows onto the support ring 112 of the mouth 110 of the bottle 100. Here, the support ring 112 is thicker than the other portions, and the thin In contrast, the temperature of the bottle 100 is increased by 100%. By blowing the hot air onto the support ring 112, the support ring becomes thicker than other parts. This effectively increases the temperature of the nozzle 112 of the bottle 100. 10 can be efficiently heated.

[0087] When the nozzle 90 is inserted into the bottle 100, the support ring 112 is In the cross section, a first provisional nozzle 90 extends radially outward from a tip 90a of the nozzle 90 along a horizontal direction. The imaginary line IL1 extends radially outward from the tip 90a of the nozzle 90 along the tapered surface 90c. It is preferable that the support ring 1 is disposed between the second imaginary line IL2. This allows the amount of hot air blown onto the meat 12 to be increased. The thicker support ring 112 can be heated more effectively. In this case, the angle θ2 between the first virtual line IL1 and the second virtual line IL2 is 5° or more and 80° or less. It may be below, for example at 45°.

[0088] The nozzle 90 is inserted into the bottle 100 and is configured to apply a disinfectant to the bottle 100. 100 , and the nozzle 11 of the bottle 100 is inserted into the bottle 100. The device is configured to spray a germicide onto the top surface 115 of the mouth 110. This can improve the sterilization efficiency of the top surface 115 of the sterilizer.

[0089] When the nozzle 90 sprays the germicide onto the top surface 115 of the mouth portion 110, The distance L4 (vertical distance, see FIG. 7) between the nozzle 115 and the tip 90a of the nozzle 90 is 2 m. It is preferable that the width of the opening 110 is 100 mm or more and 100 mm or less. A fungicide can be applied to the

[0090] The time during which the nozzle 90 sprays the germicide onto the top surface 115 of the mouth portion 110 is 0.1 It is preferable that the time for spraying the germicide from the nozzle 90 is 0. By setting the time to 1 second or more, a sufficient complementary effect can be obtained. The risk of deformation of the mouth part 110 due to the time for spraying the disinfectant being 5.0 seconds or less can be reduced.

[0091] (Content filling method) Next, a content filling method using the content filling system 10 (FIG. 1) will be described. 6 and 7.

[0092] First, a plurality of preforms are fed by a preform feeder 1 through a preform feed conveyor 2. The preforms 100a are sequentially supplied to the receiving section 34 of the preform transport section 31 (preforms A foam supply step (reference numeral S1 in FIG. 6). At this time, the preform 100a is In the sterilization device 34a, hydrogen peroxide mist or gas is sprayed to sterilize the material. It is then dried with hot air.

[0093] Next, the preform 100a is sent to the heating section 35, and heated by the heater 35a to, for example, 9 The preform is heated to a temperature of 0° C. or higher and 130° C. or lower. The preform 100a is delivered to the delivery section 36. Then, the preform 100a is delivered to the delivery section 36. The mixture is then sent to the blow molding section 32.

[0094] Next, the preform 100a sent to the blow molding section 32 is molded using a mold (not shown). The bottle 100 is blow-molded by blow molding using the blow molding machine. Then, the blow-molded bottle 100 is sent to the bottle conveying section 33. can be done.

[0095] Next, in the sterilization device 11, a hydrogen peroxide solution as a sterilizing agent is applied to the bottle 100. The sterilization process is carried out using hydrogen peroxide (container sterilization process, reference symbol S3 in FIG. 6). The solution is a gas or mist that is vaporized above the boiling point and is supplied to the bottle 100. The mist of the hydrogen peroxide solution adheres to the inner and outer surfaces of the bottle 100, Sterilize the inside and outside surfaces of 100.

[0096] At this time, first, the bottle 100 is transported by the transport mechanism 40 (transportation step, FIG. 6 In this embodiment, a gripper 42 (see FIG. 2) is connected to the wheel 41. At this time, the bottle 100 is supported by the support ring 112. The sheet is conveyed while being held from below by the gripper 42 (see FIG. 5). The bottle 100 moves from point A to point B shown in FIG. 3. In addition, at this time, as shown in FIG. The bottle 100 is arranged with a predetermined distance between it and the nozzle 90 in the vertical direction. In FIG. 7, points A to F correspond to points A to F in FIG. is doing.

[0097] At this time, the nozzle 90 is sterilized against the top surface 115 of the mouth portion 110 of the bottle 100. In this case, the disinfectant is first sprayed into the conduit 5. 7 and is supplied to the nozzle 90. The sterilizing agent supplied to the nozzle 90 is As will be described later, when the nozzle 90 is inserted into the bottle 100, After the bottle 100 is inserted, the bottle 100 is sterilized while being heated. By spraying a disinfectant onto the bottle 100 from above the bottle 100, the mouth of the bottle 100 It is possible to complement the sterilization of 110. At the same time that the bottle 100 is handed over to the gripper 42, the sterilant is sprayed from the nozzle 90 onto the bottle 10. Alternatively, the liquid may be sprayed onto the top surface 115 of the nozzle 110 of the nozzle.

[0098] Here, as shown in FIG. 7, a disinfectant is sprayed from a nozzle 90 onto a top surface 115 of the mouth portion 110. When spraying (when the bottle 100 moves from point A to point B), the nozzle 90 of the bottle 100 In other words, the sterilizing agent is transferred from the nozzle 90 to the bottle 100. The nozzle 90 sprays the liquid onto the bottle 100 at a predetermined interval in the vertical direction. At this time, the distance L4 between the top surface 115 of the mouth portion 110 and the tip 90a of the nozzle 90 is It is preferable that the width of the top surface 11 of the mouth portion 110 is 2 mm or more and 100 mm or less. 5. The entire surface can be coated with a disinfectant.

[0099] In addition, the time for spraying the disinfectant from the nozzle 90 is 0.1 seconds or more and 5.0 seconds or less. It is preferable that the time for spraying the germicide from the nozzle 90 is 0.1 seconds or more. In addition, the time for spraying the disinfectant from the nozzle 90 can be adjusted. However, by setting the time to 5.0 seconds or less, the risk of deformation of the mouth portion 110 can be reduced. do.

[0100] Next, a nozzle 90 for spraying a sterilizing agent is inserted into the bottle 100 being transported. At this time, the bottle 100 is inserted into the nozzle 100 at point B shown in FIG. to point C. At this time, the nozzle 90 moves downward as shown in FIG. As a result, the nozzle 90 is inserted into the bottle 100. By inserting the nozzle 90 into the bottle 100, a slight positive pressure is created in the bottle 100. Therefore, the nozzle 90 is inserted into the bottle 100. As a result, the pressure inside the bottle 100 increases due to the sterilizing agent sprayed inside the bottle 100. In addition, by inserting the nozzle 90 into the bottle 100, the volume of the nozzle 90 As a result, the pressure inside the bottle 100 increases. As a result, a slight positive pressure is created inside the bottle 100 .

[0101] In addition, by inserting the nozzle 90 into the bottle 100, the conductor connected to the nozzle 90 The static pressure in the pipe 57 and the pressure in the bottle 100 are almost the same. When the pressure in the bottle 100 is made slightly positive by inserting the conduit 57 into the bottle 100, The static pressure of the nozzle 90 increases, and the sterilant sprayed from the nozzle 90 is ejected from the mouth 110 of the bottle 100 to the outside. This allows the flow rate of the sterilant to be increased when it is sprayed from the nozzle 90 to the bottle. When sprayed into the bottle 100, the temperature of the bottle 100 can be effectively increased.

[0102] In this case, the nozzle 90 is inserted into the bottle 100. The pressure in the nozzle 90 is preferably maintained at 1 kPa or more and 20 kPa or less. By inserting the nozzle 90 into the bottle 100, the pressure in the nozzle 90 is increased to 0.01 kPa or more. It is preferable to increase the pressure to 0 kPa or less.

[0103] Next, a sterilant is supplied to the bottle 100 into which the nozzle 90 is inserted (sterilant supply In this embodiment, the disinfectant is sprayed from the nozzle 90. Therefore, by inserting the nozzle 90 into the bottle 100, At this time, the bottle 100 is fed from point C to point D shown in FIG. At this time, as shown in FIG. The downward position does not change. After the above-mentioned top surface sterilization process (reference number S32 in FIG. 6), After the above-mentioned nozzle insertion step (reference number S33 in FIG. 6) is completed, the spraying of the disinfectant from the nozzle 90 is stopped. The nozzle 90 may be configured to spray the disinfectant again. For example, a valve (not shown) may be provided on the nozzle 90, and the nozzle may be opened only for a required time according to a predetermined timing. The valve may be opened, which can reduce the amount of disinfectant used. do.

[0104] Here, the bottle 100 is supported from below by the support ring 112 held by the gripper 42. Therefore, the support ring 112 is held by the gripper 42. While the bottle 100 is held from below, a disinfectant is supplied to the bottle 100. Even if the bottle 100 is pressed downward by the wind pressure of the disinfectant, the water in the bottle 100 It is possible to prevent the horizontal position from shifting downward.

[0105] The nozzle 90 is connected to the bottle 10 being conveyed by the gripper 42 of the conveying mechanism 40. 0 and supplies sterilizing agent to bottle 100. The liquid is supplied to the bottle 100 while the inside of the bottle 100 is maintained at a slightly positive pressure. The bottle 100 can be heated to a desired temperature.

[0106] In addition, the nozzle 90 is connected to the bottle 100 being conveyed by the gripper 42 of the conveying mechanism 40. By moving in synchronization with the nozzle 90, the nozzle 90 follows the bottle 100 and injects the sterilizing agent into the bottle. This allows the disinfectant to be applied to the inner surface of the bottle 100. This allows for efficient supply of the disinfectant, thereby reducing the amount of disinfectant used. The sterilizing agent is efficiently supplied to the inner surface of the bottle 100, so that the bottle is sterilized by the heat of the sterilizing agent. The tor 100 may also be heated to a desired temperature.

[0107] In this case, if the sterilant supplied to the bottle 100 is hydrogen peroxide gas, the hydrogen peroxide gas The concentration of hydrogen peroxide gas may be, for example, 5 mg / L or more and 600 mg / L or less. When the concentration is 5 mg / L or more, the bactericidal effect can be sufficiently exhibited. In addition, the concentration of hydrogen peroxide gas is 600 mg / L or less, so the residual water peroxide This can prevent the hot air supply time required for removing the residue from increasing. This allows the sterilization device 11 and the content filling system 10 to be made smaller. If the sterilant is hydrogen peroxide mist, the amount of hydrogen peroxide mist is 35% by weight. For example, the amount may be 5 μL or more and 100 μL or less per bottle. By using a volume of 5 μL / bottle or more, the sterilization effect can be fully exerted. In addition, the amount of hydrogen peroxide mist is less than 100μL per bottle, so residual The time required to supply hot air to remove hydrogen peroxide can be reduced. This allows the sterilization device 11 and the content filling system 10 to be made smaller. .

[0108] In addition, when the sterilant is 35% by weight of hydrogen peroxide, the flow rate of the sterilant per nozzle 90 is The flow rate may be 30 L / min to 400 L / min, preferably 50 L / min. The flow rate of the disinfectant may be 30 L / min or less. This improves the sterilization efficiency of the bottle 100. The flow rate is 400 L / min or less, so the sterilization efficiency of 100 bottles is maintained while keeping costs low. It is possible to streamline the process.

[0109] The temperature of the disinfectant may be 70° C. or higher and 200° C. or lower. By setting the temperature at or above 100° C., the sterilization efficiency of the bottle 100 can be improved. Since the temperature of the sterilizing agent is 200° C. or less, even a thin-walled bottle 100 can be sterilized. This can prevent the bottle 100 from being deformed by the heat of the antibacterial agent.

[0110] Furthermore, the time for which the nozzle 90 supplies the sterilant to the bottle 100 into which it is inserted is 0. It may be 1 second or more and 10 seconds or less, and preferably 0.5 seconds or more and 10 seconds or less. By supplying the sterilizing agent for 0.1 seconds or more, the sterilization efficiency of the bottle 100 is improved. In addition, by supplying the disinfectant for 0.5 seconds or more, The heat of the sterilizing agent can effectively warm the bottle 100. By keeping the time to 10 seconds or less, the sterilizing agent can be supplied while maintaining the sterilizing efficiency of the bottle 100. This can shorten the work time required for supplying the materials.

[0111] Next, the bottle 100 moves from point D to point E shown in FIG. As shown, the nozzle 90 moves upward, removing the nozzle 90 from the bottle 100. is issued.

[0112] After that, the bottle 100 moves from point E to point F shown in FIG. As shown in FIG. 1, the bottle 100 is spaced apart from the nozzle 90 in the vertical direction. When the bottle 100 moves from point D to point F shown in FIG. As described above, the germicide may be sprayed from the nozzle 90 onto the top surface 115 of the mouth portion 110. This sterilizes the mouth 110 of the bottle 100 (top surface sterilization process, reference numeral S35 in FIG. 6). In the above-mentioned top surface sterilization process, the nozzle 90 is 00 (before the nozzle insertion step described above), 0 from the bottle 100 (after the above-mentioned sterilizing agent supply step). good.

[0113] Next, the bottle 100 is sent to the air-rinse device 14, where By supplying sterile heated air or room temperature air, hydrogen peroxide is activated, Foreign matter, hydrogen peroxide, etc. are removed from the bottle 100 (air rinse process, reference symbol S4 in FIG. 6). In the air rinse process, sterilized hot air is blown into the bottle 100. In this case, the bottle 100 is heated from the inside by hot air, and the sterilization effect of the sterilizing agent mist is enhanced. In addition, the adsorption and permeation of hydrogen peroxide into the bottle 100 is suppressed, and hydrogen peroxide The mist floating inside the bottle 100 is easily absorbed by the hot air. At this point, the disinfectant adhering to the inner surface of the bottle 100 is discharged outside the bottle 100. Since the mist has already sufficiently sterilized the bacteria, the bacteria are suspended in the internal space of the bottle 100. Discharging the mist does not impair the sterilization effect, but rather helps to discharge excess mist early. This makes it possible to prevent excessive adsorption and penetration of hydrogen peroxide onto the inner surface of the bottle 100. If necessary, add low concentration hydrogen peroxide to sterile heated air or room temperature sterilized air. The hydrogen peroxide may be gasified by mixing the condensed mist of the above and supplied to the bottle 100.

[0114] Sterile heated air is mixed with condensed mist of hydrogen peroxide to gasify the hydrogen peroxide and release it into the bottle. When hydrogen peroxide is supplied to the bottle 100, the amount of hydrogen peroxide contained in the hot air supplied to the bottle 100 is , and preferably 1 mg or more and 10 mg or less per liter of hot air, and 2 mg or more and 8 mg or less It is more preferable that the time for supplying the heated air to the bottle 100 is It can discharge all the disinfectant floating inside the 100 and compensate for the poor disinfection caused by the disinfectant. The temperature of the hot air should be adjusted to a level sufficient to remove the hydrogen peroxide from the bottle 100. From the viewpoint of the temperature, it is desirable to set the temperature as high as possible without deforming the bottle 100. For example, if the bottle 100 is a PET bottle, the temperature of the hot air used for air rinsing is 50°C. The temperature should be set in the range of 75° C. or higher and lower than 150° C., preferably in the range of 75° C. or higher and lower than 120° C. In addition, when the bottle 100 is an HDPE bottle, the hot air used for the air rinse is preferably The temperature is in the range of 100°C or more and less than 200°C, preferably in the range of 110°C or more and less than 180°C. It is preferable to set the temperature of the hot air and hydrogen peroxide gas to a temperature higher than the heat resistance temperature of the bottle 100. If the blowing time is too long, the bottle 100 may be heated beyond its heat resistance temperature. When blowing hot air and hydrogen peroxide gas, The time is set to, for example, 2 seconds or more and 5 seconds or less. The shorter the time between stopping the introduction and starting the blowing of hot air, the better. It is recommended that the timeout period be set to no more than 10 seconds, and preferably no more than 5 seconds.

[0115] The bottle 100 is then transferred to a sterile water rinsing device 15. In step 15, the device is washed (rinsed) with sterile water at a temperature of 15°C to 85°C ( Sterile water rinsing process (reference number S5 in FIG. 6). Specifically, the process is performed by rinsing the container with sterile water at a temperature of 15°C to 85°C. Water is supplied into the bottle 100 at a flow rate of not less than 5 L / min and not more than 15 L / min. At this time, the bottle 100 is preferably in an inverted state, and the bottle is poured from the downward-facing mouth portion 110. Sterile water is supplied into the bottle 100, and the sterile water flows out of the bottle 100 through the mouth 110. This hot water is used to wash away hydrogen peroxide adhering to the bottle 100 and to remove foreign matter. The bottle 100 is washed with sterile water only while the sterile water is running. In addition, in order to remove residual sterile water in the sterile water rinsing process, the After rinsing the bottle 100, sterile air may be supplied to the bottle 100. In this case, For example, sterile air is supplied from a sterile air supply device (not shown) to bottle 1 at a pressure of 0.1 MPa or more. 00 and blow for 0.5 seconds or more to remove residual water. It is also possible to reduce the oxygen concentration in the bottle 100 by replacing the oxygen with sterile nitrogen. do.

[0116] Next, the bottle 100 is transported to the filling device 20. The bottle 100 is rotated (revolved) and the contents are filled into the bottle 100 from its mouth 110. (filling step, reference numeral S6 in FIG. 6).

[0117] Before filling the bottles 100 with the filling device 20, the contents are mixed and sterilized by heating. The heating temperature is generally 60°C if the acidity of the contents is less than pH 4.0. above and below 120℃, and if pH is 4.0 or higher, above 115℃ and below 150℃ This ensures that all microorganisms that may grow in the product bottle 101 before filling are eliminated. The heat-sterilized contents are cooled to a temperature between 3°C and 40°C. It is rejected.

[0118] In the filling device 20, the sterilized bottle 100 is filled with the sterilized liquid that has been cooled to room temperature. The contents are filled at room temperature. The temperature of the contents during filling is, for example, 3°C or higher and 40°C or lower. It is about the following.

[0119] Next, the bottles 100 filled with the contents are capped by the conveyor wheel 12. It is transported to the device 16.

[0120] On the other hand, the cap 80 is sterilized in advance by the cap sterilizer 18 (cap Sterilization process (reference number S7 in FIG. 6). During this process, the cap 80 is first The cap 80 is carried into the cap sterilization device 18 from the outside. In the apparatus 18, hydrogen peroxide mist or gas is sprayed onto the inner and outer surfaces to sterilize them. After that, it is dried with hot air and sent to the capping device 16.

[0121] Next, in the capping device 16, the bottle 10 conveyed from the filling device 20 is The bottle 100 is closed by attaching a sterilized cap 80 to the mouth 110 of the bottle 100. As a result, the product bottle 101 is obtained (the capping step, reference numeral S8 in FIG. 6).

[0122] Thereafter, the product bottle 101 is transported from the cap attachment device 16 to the product bottle discharge section 22. The bottles are then transported to the outside of the content filling system 10 (bottle discharging process, reference numeral 6 in FIG. 6). S9) Then, the product bottle 101 is transported to a packaging line (not shown) and packaged.

[0123] Each process from the container sterilization process to the bottle discharge process is carried out in the sterilizer spray chamber 70. c, the first sterilant removal chamber 70d, the second sterilant removal chamber 70e, the sterile chamber 70 f or in a sterile atmosphere surrounded by an outlet chamber 70g, i.e. in a sterile environment. The sterilant spray chamber 70c, the first sterilant removal chamber 70d, the second sterilant removal chamber The inside of the chamber 70e, the sterile chamber 70f and the outlet chamber 70g are filled with hydrogen peroxide, peracetic acid, and the like. Sterilization is carried out by spraying acid or irrigating with hot water. After sterilization, the sterile air is A constant disinfectant spray chamber 70c, a first disinfectant removal chamber 70d, a second disinfectant removal chamber The nozzle 70a is arranged to blow out of the nozzle 70e, the sterile chamber 70f and the exit chamber 70g. A disinfectant spray chamber 70c, a first disinfectant removal chamber 70d, a second disinfectant removal chamber 7 Positive pressure of sterile air is provided within sterile chamber 70e, sterile chamber 70f and exit chamber 70g. In this case, the atmospheric barrier chamber 70b, the sterilant spray chamber 70c, and the exit chamber 7 At 0g, the sterile air and the sterilizing agent used in the bottle sterilization are exhausted from each chamber. , a first sterilant removal chamber 70d, a second sterilant removal chamber 70e and a sterile chamber 7 The pressure at 0f should be adjusted to a positive pressure of 1 Pa or more, preferably 10 Pa or more. At this time, the outlet chamber 70g, like the first sterilizing agent removal chamber 70d, is set to 1 Pa. The pressure may be adjusted to a positive pressure of 10 Pa or more, preferably 10 Pa or more.

[0124] The production (transport) speed of the bottles 100 in the content filling system 10 is 100b It is preferable to set the bpm to 1500 bpm or more. "Upper ute" refers to the conveying speed of 100 bottles per minute.

[0125] As described above, according to this embodiment, the supply unit 50 includes the nozzle 9 for spraying the sterilizing agent. 0, and the nozzle 90 is inserted into the bottle 100 to sterilize the bottle 100. The agent is supplied, and the mouth part 1 of the bottle 100 is opened without being inserted into the bottle 100. The disinfectant is sprayed onto the top surface 115 of the bottle 100. The top surface 115 of the mouth 110 of the torch 100 can be sterilized efficiently.

[0126] According to this embodiment, the nozzle 90 has a small diameter forming the tip 90a of the nozzle 90. a small diameter portion 91 located upstream of the small diameter portion 91 in the flow direction of the disinfectant, and having an inner diameter smaller than that of the small diameter portion 91; A large diameter portion 92 and a small diameter portion 91 are disposed between the large diameter portion 92 and the small diameter portion 91, and are disposed downstream in the flow direction of the disinfectant. The nozzle includes a reduced diameter portion 93 whose inner diameter gradually decreases toward the nozzle. The flow rate of the sterilizing agent sprayed from the nozzle 90 can be increased. When a disinfectant is sprayed into the bottle 100, the temperature of the bottle 100 is more effectively increased. It can be done.

[0127] According to the present embodiment, the nozzle 90 has a flange protruding from the nozzle 90 in the radial direction. A flange portion 95 and an annular wall protruding from the periphery of the flange portion 95 toward the tip 90a of the nozzle 90 In the case of such an umbrella-shaped nozzle 90, the supply portion 96 is provided in the bottle 100. Among the hot air blown out of the bottle 100 from the mouth 110 of the bottle 100, This allows the mouth 110 to be preheated and sterilized. Therefore, the boundary between the outer surface and the inner surface of the bottle 100 can be efficiently This allows for quick and reliable sterilization.

[0128] According to this embodiment, the tip 90a of the nozzle 90 and the outer surface 90b of the nozzle 90 The tapered surface 90c is formed between the bottle 100 and the nozzle 102. Hot air can be directed at the support ring 112 of the mouth 110 of the bottle 100 . Therefore, the support ring 112, which is thicker than other parts, can be effectively heated. This makes it possible to efficiently raise the temperature of the mouth portion 110 of the bottle 100.

[0129] In addition, according to the present embodiment, when the nozzle 90 is inserted into the bottle 100, the support The ring 112 is radially extending from the tip 90a of the nozzle 90 in the horizontal direction in a vertical cross section. A first imaginary line IL1 extending outward and a tapered surface 90c extending from the tip 90a of the nozzle 90 are The support member is disposed between the support member and a second imaginary line IL2 extending radially outward. Therefore, the amount of hot air blown onto the ring 112 can be increased. In this way, the temperature of the thicker support ring 112 can be increased more effectively.

[0130] Furthermore, according to this embodiment, the gripper 42 holds the support ring 112 from below. Therefore, in a state where the support ring 112 is held from below by the gripper 42, In this state, the sterilizing agent is supplied to the bottle 100. Even if the bottle 100 is pressed downward, the horizontal position of the bottle 100 is not shifted downward. This can prevent the occurrence of such problems.

[0131] In the above-described embodiment, the sterilizing agent supplying step is performed after the nozzle inserting step. However, before supplying the sterilant to the bottle 100, the supply unit 50 The bottle 100 may be heated. This allows the temperature of the bottle 100 to be easily increased to a desired temperature. As a result, the sterilization efficiency of the bottle 100 can be further improved. can.

[0132] In this case, the supply unit 50 may heat the bottle 100 by hot air. The unit 50 supplies hot air from the nozzle 90 into the bottle 100 to heat the bottle 100. The bottle 100 may be heated by a heating mechanism (not shown). Alternatively, the supply unit 50 may heat the bottle 100 by infrared rays.

[0133] In this modification, when filling the contents, for example, the press is performed in the same manner as references S1 to S2 in FIG. The reform supply process (reference number S11 in FIG. 8) and the bottle molding process (reference number S12 in FIG. 8) are performed in this order. conduct.

[0134] Next, in the sterilization device 11, a hydrogen peroxide solution as a sterilizing agent is applied to the bottle 100. The container is sterilized using the container sterilization method (container sterilization step, reference numeral S13 in FIG. 8).

[0135] In this case, first, similarly to the reference numerals S31 to S33 in FIG. 6, the conveying step (reference numeral S13 in FIG. 8) is performed. 1), a top surface sterilization process (reference number S132 in FIG. 8), and a nozzle insertion process (reference number S133 in FIG. 8). Do this in order.

[0136] Next, the bottle 100 is heated (preheating step, reference numeral S134 in FIG. 8). The bottle 100 is heated, for example, by hot air. Prior to feeding, the bottle 100 is heated to bring the temperature of the bottle 100 to a desired temperature. As a result, the sterilization efficiency of the bottle 100 can be further improved. The pre-heating step of the bottle 100 can be carried out by applying the no The nozzle 90 may be inserted into the bottle 100 while following the nozzle 90. In this case, it is possible to heat the entire bottle 100. 00, the nozzle 90 is made to follow the bottle 100 while remaining in a non-inserted state. In this case, the mouth portion 110 of the bottle 100, which may have a low temperature after molding, is actively The temperature can be increased automatically.

[0137] Next, similarly to reference numerals S34 to S35 in FIG. 6, a disinfectant supply step (reference numeral S135 in FIG. 8) is performed. Then, a top surface sterilization step (reference numeral S136 in FIG. 8) is carried out in sequence.

[0138] Thereafter, similarly to the reference signs S4 to S9 in FIG. 6, an air rinse process (reference sign S14 in FIG. 8) is performed. Sterile water rinsing process (reference number S15 in FIG. 8), filling process (reference number S16 in FIG. 8), cap sterilization 8), a capping step (S18 in FIG. 8), a bottle discharging step (S19 in FIG. 8), In this manner, the bottle 100 is capped and the product bottle 101 is obtained. can be done.

[0139] According to this modification, the bottle 100 is heated before the sterilizing agent is supplied to the bottle 100. This makes it possible to easily raise the temperature of the bottle 100 to a desired temperature. Therefore, the sterilization efficiency of the bottle 100 can be further improved.

[0140] In the above-described embodiment, the container sterilization device is a hydrogen peroxide sterilization and a warming Although the sterilization device for water sterilization has been described, the present invention is not limited to this. For example, The sterilization device sterilizes the inside and outside of the bottle with a peracetic acid solution (or gas, mist, or a mixture of these). Even if the sterilization equipment uses the peracetic acid sterilization method, which sterilizes the inside and outside with sterile water after sterilization with Or, the container sterilizer can use hydrogen peroxide or ethanol as a sterilizing agent, as well as peracetic acid. Sterilization using single substances such as acid, acetic acid, pernitrate, nitric acid, sodium hypochlorite, chlorine, caustic soda, etc. A sterilization device using a combination of two or more of these sterilizing agents may be used. The sterilizer may be a device that not only sterilizes bottles but also sterilizes preforms and cups. The present invention may also be used for sterilization of plastic bags, pouches, paper containers, or combinations thereof.

[0141] In the above-described embodiment, the conveying mechanism 40 includes a rotatable wheel 41 and a wheel a gripper 42 connected to the wheel 41 and configured to hold and transport the bottle 100; However, the present invention is not limited to this. For example, the transport mechanism 40 may be a star hole. A wheel (holding member) or a conveyor may also be employed.

[0142] Furthermore, in the above-described embodiment, the content filling system 10 includes a bottle molding unit 30. Although the above description is directed to a case where the content filling system is provided, the present invention is not limited to this. For example, The empty bottles 100 are sequentially received from the outside by air conveyance or the like, and the received bottles are 100 may be transported toward the sterilization device 11. In particular, the contents filling system 10 can be molded. When empty bottles 100 are sequentially received from the outside, the bottles to be sterilized by the sterilizing device 11 are The mold 100 may have cooled down after being blown. The bottle 100 can be heated to a desired temperature by the heat of the blow molding section 32. The sterilization efficiency of the bottle 100 can be improved without providing a temperature control device downstream of the do.

[0143] A plurality of components disclosed in the above embodiment and modification may be appropriately combined as necessary. Alternatively, it is possible to use all the components shown in the above embodiment and modified examples. Some components may be removed from the [Explanation of symbols]

[0144] 10 Contents filling system 11 Container sterilizer 16 Cap installation device 20 Filling equipment 40 Conveyor mechanism 42 Gripper 50 Supply section 80 Cap 90 Nozzles 90a tip 90b External surface 90c tapered surface 91 Small diameter section 92 Large diameter section 93 Reduced diameter part 95 Flange 96 Wall 100 bottles 110 Mouth 115 Top

Claims

1. a conveying step of conveying a container having an opening into which a content is to be filled; a nozzle insertion step of inserting a nozzle for spraying a sterilant into the container being transported; a disinfectant supplying step of supplying the disinfectant to the container into which the nozzle is inserted; a top surface sterilization step of spraying the sterilant from the nozzle onto the top surface of the mouth of the container at least one of before the nozzle insertion step and after the sterilant supply step; A tapered surface is formed between the tip of the nozzle and an outer surface of the nozzle, The mouth of the container includes a threaded portion and a support ring that is provided below the threaded portion and has a largest outer diameter of the mouth, A container sterilization method in which, when the nozzle is inserted into the container, the lower surface of the support ring is positioned, in a vertical cross section, between a first imaginary line extending radially outward from the tip of the nozzle along a horizontal direction and a second imaginary line extending radially outward from the tip of the nozzle along the tapered surface.

2. 2. The container sterilization method according to claim 1, wherein in the top surface sterilization step, a distance between the top surface of the mouth portion and the tip of the nozzle is 2 mm or more and 100 mm or less.

3. 3. The container sterilization method according to claim 1, wherein in the top surface sterilization step, a time for spraying the sterilant from the nozzle is 0.1 seconds or more and 5.0 seconds or less.

4. 4. The container sterilization method according to claim 1, wherein the nozzle includes a small diameter portion constituting a tip of the nozzle, a large diameter portion located upstream of the small diameter portion in the flow direction of the sterilant and having an inner diameter larger than that of the small diameter portion, and a tapered portion located between the large diameter portion and the small diameter portion and having an inner diameter that gradually decreases toward the downstream side in the flow direction of the sterilant.

5. When the inner diameter of the mouth is d1 and the outer diameter of the nozzle is D1, 2mm≦d1-D1≦25mm The container sterilization method according to any one of claims 1 to 4, wherein the following relationship is satisfied.

6. 6. A container sterilization method according to claim 1, wherein the nozzle is provided with a flange portion protruding radially from the nozzle and an annular wall portion protruding from the periphery of the flange portion toward the tip side of the nozzle, and when the nozzle is inserted into the container, the wall portion covers at least a portion of the outer surface of the mouth portion.

7. If the inner diameter of the wall portion is d2 and the outer diameter of the mouth portion at the upper end of the mouth portion is D2, 5mm≦d2-D2≦30mm The container sterilization method according to claim 6, wherein the following relationship is satisfied:

8. 8. The container sterilization method according to claim 1, wherein in the sterilizing agent supplying step, the sterilizing agent is supplied to the container while the support ring is held from below.

9. 9. The container sterilization method according to claim 1, further comprising a preheating step of heating the container between the nozzle insertion step and the sterilizing agent supply step.

10. The container sterilization method according to claim 9, wherein in the preheating step, the container is heated by hot air or infrared rays.

11. a conveying mechanism for conveying a container having an opening into which the contents are to be filled; a supply unit that supplies a sterilant to the container being transported by the transport mechanism, The supply unit has a nozzle for spraying the disinfectant, The nozzle supplies the disinfectant to the container when inserted in the container, and sprays the disinfectant onto a top surface of the mouth of the container when not inserted in the container; A tapered surface is formed between the tip of the nozzle and an outer surface of the nozzle, The mouth of the container includes a threaded portion and a support ring that is provided below the threaded portion and has a largest outer diameter of the mouth, A container sterilization device in which, when the nozzle is inserted into the container, the lower surface of the support ring is positioned, in a vertical cross section, between a first imaginary line extending radially outward from the tip of the nozzle along a horizontal direction and a second imaginary line extending radially outward from the tip of the nozzle along the tapered surface.

12. The container sterilization device according to claim 11, wherein when the nozzle sprays the sterilant onto the top surface, a distance between the top surface of the mouth portion and a tip of the nozzle is 2 mm or more and 100 mm or less.

13. 13. The container sterilization device according to claim 11, wherein the time during which the nozzle sprays the sterilant onto the top surface is from 0.1 seconds to 5.0 seconds.

14. 14. The container sterilization device according to any one of claims 11 to 13, wherein the nozzle includes a small diameter portion constituting a tip of the nozzle, a large diameter portion located upstream of the small diameter portion in the flow direction of the sterilant and having an inner diameter larger than that of the small diameter portion, and a tapered portion located between the large diameter portion and the small diameter portion and having an inner diameter that gradually decreases toward the downstream side in the flow direction of the sterilant.

15. When the inner diameter of the mouth is d1 and the outer diameter of the nozzle is D1, 2mm≦d1-D1≦25mm The container sterilization device according to any one of claims 11 to 14, which satisfies the following relationship:

16. The container sterilization device according to any one of claims 11 to 15, wherein the nozzle is provided with a flange portion protruding radially from the nozzle and an annular wall portion protruding from the periphery of the flange portion toward the tip side of the nozzle, and when the nozzle is inserted into the container, the wall portion covers at least a portion of the outer surface of the mouth portion.

17. If the inner diameter of the wall portion is d2 and the outer diameter of the mouth portion at the upper end of the mouth portion is D2, 5mm≦d2-D2≦30mm The container sterilization device according to claim 16, which satisfies the following relationship:

18. 18. The container sterilization device according to claim 11, wherein the transport mechanism has a holding member that holds the container, and the holding member holds the support ring from below.

19. The container sterilization device according to any one of claims 11 to 18, wherein the supply unit heats the container before supplying the sterilizing agent to the container.

20. The container sterilization device according to claim 19, wherein the supply unit heats the container with hot air or infrared rays.

21. A container sterilization device according to any one of claims 11 to 20, A filling device for filling the container with a content; A content filling system comprising a capping device for closing the container with a cap.

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