Content filling system and content filling method
By using a zoned sterilization and labeling system for filling contents, the problem of system enlargement caused by labeling plastic containers under aseptic conditions is solved, achieving compact sterilization and labeling of containers, and improving the system's compactness and efficiency.
Patent Information
- Application Number
- CN202480044863.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-07-04
- Filing Date
- 2024-07-04
- Publication Date
- 2026-02-03
AI Technical Summary
In the prior art, after filling plastic containers with liquid under sterile conditions, labels are attached to the outer periphery of the containers, resulting in a large overall structure of the contents filling system that cannot be designed compactly.
The contents filling system employs a zoned sterilization process, comprising a first sterilization section, a label attachment section, and a second sterilization section. It achieves container sterilization and label attachment through gas rinsing and hot air blowing. The label is precisely attached using a label supply section, a rotary cutter, a label conveying roller, and a star-shaped wheel, and the adhesive application device ensures label adhesion.
It achieves compact sterilization of containers and label attachment, ensuring effective label adhesion while the containers are sterile, and improving the compactness and efficiency of the contents filling system.
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Figure CN121464084A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a content filling system and a content filling method. Background Technology
[0002] Recently, plastic containers have become increasingly popular as containers for holding liquid contents such as food and beverages, and these plastic containers are filled with liquid contents.
[0003] Plastic containers filled with such liquid contents are manufactured by inserting a preform into a mold and then blow molding. The blow-molded containers are then aseptically filled with the liquid contents.
[0004] Previously, techniques were developed to sterilize preforms and blow-molded containers by applying bactericides.
[0005] A label indicating the contents of the contents is affixed to the outer periphery of the filled container. However, typically, the label is affixed to the outer periphery of the container after aseptic filling, resulting in a larger overall construction for the aseptic contents filling system compared to the container itself.
[0006] Existing technical documents
[0007] Patent documents
[0008] Patent Document 1: Japanese Patent Application Publication No. 2015-116814
[0009] Patent Document 2: Japanese Patent Application Publication No. 2013-133130 Summary of the Invention
[0010] The technical problem that the invention aims to solve
[0011] This disclosure was made with the consideration of providing a content filling system and a content filling method that can compactly constitute the whole content filling system.
[0012] Technical solutions for solving technical problems
[0013] This disclosure discloses a content filling system comprising: a first sterilization section for sterilizing at least the outer surface of a container or at least the inner surface of a label; a label attaching section for attaching the label to the outer surface of the container after sterilization by the first sterilization section; a second sterilization section for sterilizing the container with the label attached by the label attaching section; a content filling section for filling the container after sterilization by the second sterilization section with content; and a sealing section for sealing the container.
[0014] In the contents filling system disclosed herein, a gas flushing section for blowing hot air onto the container is provided between the second sterilization section and the contents filling section.
[0015] In the contents filling system of this disclosure, the second sterilization section blows a sterilizing agent onto the inner and outer surfaces of the container.
[0016] In the content filling system disclosed herein, the first sterilization section, the label attachment section, and the second sterilization section are all surrounded by a first sterilization section chamber, a label attachment section chamber, and a second sterilization section chamber, which are respectively divided. The label attachment section chamber of the label attachment section is under positive pressure relative to the first sterilization section chamber of the first sterilization section and / or the second sterilization section chamber of the second sterilization section.
[0017] In the contents filling system disclosed herein, the label attaching part comprises: a label supplying part that supplies a strip label; a rotary cutter that cuts the strip label supplied by the label supplying part to make the label; a label transport roller that holds the label made by the rotary cutter while adsorbing it; and a star wheel that transports the container, receives the label held by the label transport roller, and attaches the label to the container, wherein the star wheel, the label transport roller, and the rotary cutter are housed within the cavity of the label attaching part.
[0018] The contents filling system disclosed herein includes an adhesive application device for applying adhesive or glue to labels held on the label transport roller.
[0019] In the content filling system disclosed herein, the label supply unit is disposed outside the label attachment chamber, and the strip label is supplied from the label supply unit into the label attachment chamber through the opening of the label attachment chamber.
[0020] The disclosed content filling method comprises: a first sterilization step, wherein at least the outer surface of a container is sterilized by a first sterilization section; a label affixing step, wherein a label is affixed to the outer surface of the container sterilized by the first sterilization section by a label affixing section; a second sterilization step, wherein the container with the label affixed by the label affixed by the label affixing section is sterilized by a second sterilization section; a content filling step, wherein content is filled into the container sterilized by the second sterilization section by a content filling section; and a sealing step of sealing the container by a sealing section.
[0021] In the content filling method disclosed herein, hot air is blown onto the container through a gas flushing section located between the second sterilization section and the content filling section.
[0022] In the filling method disclosed herein, a bactericide is blown onto the inner and outer surfaces of the container by the second sterilization section.
[0023] In the content filling method disclosed herein, the first sterilization section, the label attachment section, and the second sterilization section are all surrounded by a first sterilization section chamber, a label attachment section chamber, and a second sterilization section chamber, which are respectively divided. The label attachment section chamber of the label attachment section is under positive pressure relative to the first sterilization section chamber of the first sterilization section and / or the second sterilization section chamber of the second sterilization section.
[0024] In the content filling method disclosed herein, the label affixing step includes: a step of supplying a strip label from a label supply unit; a step of cutting the strip label from the label supply unit using a rotary cutter to produce the label; a step of transporting and holding the label produced by the rotary cutter using a label transport roller; and a step of affixing the label held by the label transport roller to the container using a star wheel, wherein the star wheel, the label transport roller, and the rotary cutter are housed within the label affixing unit cavity.
[0025] In the content filling method disclosed herein, an adhesive is applied to the label held on the label transport roller using an adhesive application device.
[0026] In the content filling method disclosed herein, the label supply unit is disposed outside the label attachment chamber, and the strip label is supplied from the label supply unit into the label attachment chamber through the opening of the label attachment chamber.
[0027] Invention Effects
[0028] According to the present invention, a contents filling system capable of sterilizing containers and attaching labels to the outer periphery of containers can be compactly constructed. Attached Figure Description
[0029] Figure 1 This is a partial vertical cross-sectional view of the container used in this embodiment.
[0030] Figure 2 This is a horizontal cross-sectional view of the container used in this embodiment. Figure 1 (Sectional view along line II-II).
[0031] Figure 3 This is a vertical cross-sectional view showing the preform used in this embodiment.
[0032] Figure 4 It is a cross-sectional view of the label.
[0033] Figure 5 (A) to (C) are schematic diagrams representing the sterilization process of the preform.
[0034] Figure 6(D) to (F) are schematic diagrams representing the sterilization process of the preform and the container forming process.
[0035] Figure 7 (G1) to (H) are schematic diagrams representing the sterilization process and the contents filling process of the container.
[0036] Figure 8 (I) to (J2) are schematic diagrams representing the sterilization process of the container.
[0037] Figure 9 (K) to (M) are schematic diagrams representing the sterilization process, the filling process, and the sealing process using the lid of the container.
[0038] Figure 10A This is a schematic diagram representing the contents filling system.
[0039] Figure 10B It is a schematic diagram showing the label attachment area.
[0040] Figure 10C This is a diagram showing a modified example of the label attachment part.
[0041] Figure 11 This is a diagram showing the spindle inside the heating furnace. Detailed Implementation
[0042] <Implementation Methods of the Invention>
[0043] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Figures 1 to 11 This is a diagram illustrating an embodiment of the present invention.
[0044] First, according to Figure 1 and Figure 2 The general outline of the container used in the aseptic contents filling system of this embodiment will be described. In addition, in this specification, "upper" and "lower" refer to the state in which the container 10 is upright (…). Figure 1 Above and below.
[0045] As will be described later, Figure 1 and Figure 2 The container (plastic bottle) 10 shown is obtained by expanding the preform 10a through biaxial stretch blow molding using a blow molding die 104. Furthermore, a liquid (also called contents) L is filled into the container 10 to obtain a container 10A containing the liquid.
[0046] Such a container 10 is made of plastic material.
[0047] The container 10 has a mouth 11, a neck 13 located below the mouth 11, a shoulder 12 located below the neck 13, a main body 20 located below the shoulder 12, and a bottom 30 located below the main body 20.
[0048] Furthermore, a label 40 displaying the product name, image, or characteristics such as the raw materials and efficacy of the contents are affixed to the main body 20 of the container 10. For example... Figure 4 As shown, label 40 has a label body 40a and a printed layer 40b containing patterns and text located on the side of container 10. The label body 40a may have a multi-layer or single-layer structure, for example, comprising a plastic layer or a paper layer. Additionally, an adhesive 40c is coated onto the printed layer 40b.
[0049] Next, the container 10 will be described in detail. As described above, the container 10 has a mouth 11, a neck 13, a shoulder 12, a main body 20, and a bottom 30.
[0050] The opening 11 is screwed onto the cover 103 (see reference). Figure 9 The threaded portion 14 (M) and the support portion 17 located below the threaded portion 14. In addition, the shape of the opening 11 may also be a conventionally known shape.
[0051] The neck 13 is located between the support portion 17 and the shoulder portion 12, and has a generally cylindrical shape with a generally uniform diameter. In addition, the shoulder portion 12 is located between the neck 13 and the main body portion 20, and has a shape in which the diameter gradually increases from the neck 13 side toward the main body portion 20 side.
[0052] Furthermore, the main body 20 has a cylindrical shape with a generally uniform diameter. However, it is not limited to this; the main body 20 may also have a polygonal cylindrical shape such as a quadrilateral cylindrical shape or an octagonal cylindrical shape. Alternatively, the main body 20 may also have a cylindrical shape with an uneven horizontal cross-section from top to bottom. In addition, in this embodiment, the main body 20 does not have any irregularities and has a generally flat surface, but it is not limited to this. For example, irregularities such as a panel or groove may be formed on the main body 20.
[0053] On the other hand, the bottom 30 has a central recess 31 and a grounding portion 32 surrounding the recess 31. Furthermore, the shape of the bottom 30 is not particularly limited and can have conventionally known bottom shapes (e.g., petal-shaped, round-bottomed, etc.). A gate portion 35 is formed at the center of the bottom 30, which serves as a path for filling resin into the mold when a preform (including the parison) 10a is produced by injection molding. The gate portion 35 has a wall thickness of approximately 0.5 to 5.0 mm.
[0054] Furthermore, the thickness of the container 10 in the main body 20 is not limited to this; for example, it can be reduced to approximately 50 μm to 250 μm. Moreover, the weight of the container 10 is not limited to this either; in the case of a 500 ml bottle, it can be set to 10 g to 30 g. By reducing the wall thickness of the container 10 in this way, the container 10 is made lighter.
[0055] Such a container 10 can be manufactured by biaxial stretch blow molding of a preform 10a (described later) made by injection molding of synthetic resin material. Furthermore, thermoplastic resins, particularly PE (polyethylene), PP (polypropylene), PET (polyethylene terephthalate), PEN (polyethylene naphthalate), and PC (polycarbonate), are preferably used as the material for the preform 10a, i.e., the container 10. Alternatively, a mixture of these resins can also be used. Furthermore, to improve the barrier properties of the container, a vapor-deposited film, such as a diamond-like carbon film or a silicon oxide film, can be formed on the inner surface of the container 10.
[0056] Furthermore, the container 10 can also be formed into a multilayer molded bottle with two or more layers. That is, it can also be formed by extrusion molding or injection molding, for example, by using a resin with gas barrier and light-blocking properties such as nylon MXD6 (hereinafter also referred to as MXD6), MXD6+ fatty acid salt, PGA (polyglycolic acid), EVOH (ethylene ethylene alcohol copolymer), or PEN (polyethylene naphthalate) as the intermediate layer, after extrusion molding of a preform 10a consisting of three or more layers, followed by blow molding, thereby forming a multilayer bottle with gas barrier and light-blocking properties. Alternatively, a resin mixed with the above-mentioned resins can also be used as the intermediate layer.
[0057] Alternatively, the container 10 can be manufactured by mixing an inert gas (nitrogen, argon) into the melt of a thermoplastic resin to form a foamed preform with a foaming pore diameter of 0.5 to 100 μm, and then blow molding the foamed preform. Such a container 10 has built-in foaming units, thus improving the overall light-blocking properties of the container 10.
[0058] Such a container 10 can also be made of a bottle filled with a capacity of 150ml to 1500ml.
[0059] Additionally, the label 40 is affixed to the main body 20 of the container 10 as described above. It consists of a thin-film label body 40a indicating the characteristics of the liquid contents within the container 10, and a printed layer 40b on one side of the label body 40a. An adhesive 40c, such as hot melt adhesive, is applied to the printed layer 40b. The label 40 is then affixed to the main body 20 of the container 10 using the adhesive 40c. It should be noted that the adhesive 40c is applied to the label 40 using the adhesive application apparatus 212A, which will be described later. However, the label 40 can also be a thermal label, shrink label, stretch label, stretch-shrink label, or hang tag, etc., disposed on the outer periphery of the main body 20 of the container 10. The thickness of the label 40 is 5 μm to 150 μm, preferably 10 μm to 80 μm. The resin forming the label 40 is a polyolefin resin (polyethylene resin, polypropylene resin, etc.), polyester resin, polystyrene resin, polyvinyl chloride resin, polyamide resin, etc. Only one of the above resins may be used, or two or more may be used, or it may be a composite label made of materials other than the above resins.
[0060] Additionally, label 40 extends from the lower part of the main body 20 of container 10 to the center, ending without reaching the lower end of shoulder 12 (see reference). Figure 1 ).
[0061] Next, according to Figure 3 The composition of the preform used in this embodiment will be described.
[0062] like Figure 3 As shown, the preform 10a is a preform 10a made of plastic material.
[0063] The preform 10a includes an opening 11a, a main body 20a connected to the opening 11a, and a bottom 30a connected to the main body 20a. The opening 11a corresponds to the opening 11 of the container 10 and has a shape substantially the same as the opening 11. The main body 20a corresponds to the neck 13, shoulder 12, and main body 20 of the container 10 and has a substantially cylindrical shape. The bottom 30a corresponds to the bottom 30 of the container 10 and has a substantially hemispherical shape.
[0064] Next, through Figure 5 (A) to Figure 11 The sterile contents filling system and sterile contents filling method of this disclosure are described.
[0065] like Figure 5 (A) ~ Figure 9 As shown in (M), the preform 10a and container 10 are sterilized, and the container 10 is filled with the contents liquid L to obtain a container 10A containing the contents liquid.
[0066] First, continuously move the materials at the desired speed. Figure 5 The preform 10a shown in (A) is subjected to a gas G or mist or a mixture thereof, which is a bactericide, blown onto the inner and outer surfaces of the traveling preform 10a and adsorbed.
[0067] Hydrogen peroxide is used as the bactericide in this embodiment, but other bactericides may also be used.
[0068] In this case, such as Figure 5 As shown in (A), hydrogen peroxide gas G, which is a bactericide, is blown from the bactericide supply nozzle 106 onto the preform 10a.
[0069] The hydrogen peroxide gas G is split into two streams within the disinfectant supply nozzle 106. One stream is injected from the main nozzle 106a toward the interior of the preform 10a, while the other stream is injected from the branch nozzle 106b toward the outer surface of the preform 10a. After exiting the disinfectant supply nozzle 106, the hydrogen peroxide gas G remains in a gaseous state, either as a mist or as a mixture thereof, and flows into the interior of the preform 10a or comes into contact with the outer surface of the preform 10a.
[0070] Furthermore, the flow of gas G ejected toward the interior of the preform 10a is surrounded by the umbrella-shaped member 130. The gas G and mist flowing into the preform 10a exit from the opening 2a of the preform 10a. The outflowing gas G collides with the umbrella-shaped member 130, is guided by the inner surface of the umbrella-shaped member 130, changes its flow toward the outer surface of the preform 10a, and comes into contact with the outer surface of the preform 10a.
[0071] In this case, a gas G, mist, or mixture thereof containing hydrogen peroxide, which serves as a bactericide, comes into contact with and adheres to the inner and outer surfaces of the preform 10a, thereby killing or damaging microorganisms attached to the surface of the preform 10a. In addition to hydrogen peroxide, the bactericide may also include ozone water, peracetic acid, or chlorine. The goal is to inactivate the bacteria.
[0072] Alternatively, it can also be done in the upcoming... Figure 5 Before the gas G is blown onto the pre-plasticized blank 10a shown in (A), hot air or the like is blown onto the pre-plasticized blank 10a to preheat the pre-plasticized blank.
[0073] In addition, an example is shown in which a bactericide gas G is blown onto both the inner and outer surfaces of the preform 10a, but it is also possible to blow a bactericide gas G onto only the inner surface of the preform 10a.
[0074] Next, using a gas nozzle 180 having a nozzle body 180b, hot air P is supplied from the opening 180a of the nozzle body 180b into the interior of the preform 10a. Figure 5 (B)
[0075] By blowing hot air P, hydrogen peroxide adhering to the inner surface of the preform 10a is thermally activated by the hot air P, thereby sterilizing microorganisms within the preform 10a. Furthermore, hydrogen peroxide adhering to the inner surface of the preform 10a by the blowing of hot air P is rapidly removed from the surface of the preform 10a. As described later, both the bactericide supply nozzle 106 and the gas nozzle 180 are disposed within the chamber 141a (see reference). Figure 10A ).
[0076] like Figure 5 As shown in (C), the sterilized preform 10a is heated to a temperature suitable for subsequent blow molding by an infrared heater 118a and other heating mechanisms. This temperature is approximately 90°C to 130°C. To prevent deformation, the opening 11a of the preform 10a passes above the area directly opposite the infrared heater 118a to avoid heat transfer from the infrared heater 118a.
[0077] like Figure 5 As shown in (C), the preform 10a is supported by the mandrel 143 during heating of the preform 10a. Here, according to Figure 11 The state of the preform 10a being supported by the mandrel 143 is described in detail.
[0078] like Figure 11 As shown, a plurality of spherical elastomers 143b are embedded in the lower part of the mandrel 143. Additionally, an umbrella-shaped component 143a is installed on the outside of the mandrel 143 as needed. Figure 11 This is a diagram showing the spindle 143 of the heating furnace 133.
[0079] When the preform 10a is inserted into the opening 11a of the mandrel 143 at the lower part, it is supported by the mandrel 143 through the elastic deformation of the elastic body 143b. Moreover, when the umbrella-shaped member 143a is provided, the opening 11a of the preform 10a is covered by the umbrella-shaped member 143a.
[0080] like Figure 11As shown, with the umbrella-shaped member 143a provided, a gap is formed between the inner surface of the opening 11a of the preform 10a and the lower part of the mandrel 143, and between the outer surface of the opening 11a of the preform 10a and the umbrella-shaped member 143a. Gas inside the preform 10a, heated by heat from the infrared heater 118a, becomes hot air and flows from inside the preform 10a to the outside of the preform 10a within the aforementioned gap, heating the opening 11a of the preform 10a during this process. Simultaneously, the main body 20a of the preform 10a is heated by heat from the infrared heater 118a, and the heat from the main body 20a is transferred to the opening 11a. Thus, the heat from the main body 20a is transferred to the opening 11a, thereby heating the opening 11a, activating the hydrogen peroxide adhering to the inner and outer surfaces of the opening 11a, and sterilizing microorganisms present on the inner and outer surfaces of the opening 11a. It should be noted that, in this embodiment, the opening 11a is heated more effectively by heat transferred from the main body 20a to the opening 11a than by hot air inside the preform 10a. This effectively raises the temperature of the opening 11a.
[0081] In order to maintain the airtightness of container 10 when it is sealed by lid 103 in the state of container 10, it is considered that the opening 11a of preform 10a will not be deformed due to the heat applied during the preform 10a stage.
[0082] The hot air flowing through the aforementioned gap heats the opening 11a, but only to a temperature below approximately 70°C, at which point the opening 11a will not deform. Through this heating of the opening 11a, the trace amounts of hydrogen peroxide remaining in the preform 10a are activated, and the opening 11a is moderately sterilized.
[0083] In addition, to improve the sterilization level of the mouth 11a, besides the infiltration of hot air brought in by the umbrella-shaped member 143a, the mouth 11a can also be sterilized by irradiating it with an ultraviolet lamp or a pulse beam. In this case, the ultraviolet lamp or pulse beam can be set at the front of the sterilizing agent supply nozzle 106 or at the rear of the infrared heater 118a, or both at the front of the sterilizing agent supply nozzle 106 and at the rear of the infrared heater 118a.
[0084] During the heating process described above, the preform 10a is suspended in an upright position by inserting a mandrel 143 into its opening 11a, and preferably rotates around the axis together with the mandrel 143 and is transported. Thus, except for the opening 11a, the preform 10a is uniformly heated to about 90°C to 130°C by the infrared heater 118a.
[0085] It should be noted that the pre-shaped blank 10a can also be transported in an inverted state.
[0086] During this period, the preform 10a is heated by the infrared heater 118a, but the hydrogen peroxide remaining on the outer surface of the preform 10a is also activated. Therefore, the activated hydrogen peroxide can be used to appropriately sterilize the outer surface of the preform 10a.
[0087] like Figure 6 As shown in (D), the heated preform 10a is released from the mandrel 143 and transferred to the fixture 132. Sterile gas Q is blown in from the opening 11a side and directed towards the constituent parts. Figure 6 The blow molding die, i.e., the mold 104, of the blow molding machine 112 shown in (E) is transported. The preform 10a maintains a high level of sterility and is supplied to the mold 104 by the blowing of the sterile gas Q.
[0088] The sterile gas Q mentioned above can also be hot air. By blowing hot air, the temperature of the preform 10a is prevented from dropping.
[0089] In addition, such as Figure 6 As shown in (D), at the point where the preform 10a faces the mold 104 after heating is complete, a cover 186 is provided in a tunnel-like manner to surround the travel path of the preform 10a. This tunnel-like cover 186 has a canopy portion 186A that covers the opening 11a of the preform 10a from above, and this canopy portion 186A is formed as a roof with an inclined surface 186B. Furthermore, in the canopy portion 186A, nozzles 186a that blow sterile gas Q toward the opening 11a of the preform 10a are provided in a row of tubes or a slit shape. As described later, both the mold 104 and the cover 186 are disposed within the chamber 141b (see reference). Figure 10A Thus, sterile gas Q is efficiently supplied to the preform 10a, which travels within the chamber 141b while maintaining sterility. Furthermore, by eliminating the tunnel-shaped cover 186 and ensuring that the chamber 141b housing the blow molding machine 112 is of class 100,000 or lower, preferably class 10,000 or lower, bacterial contamination can be reduced.
[0090] Preform 10a is transported while maintaining sterility by blowing with sterile gas Q. Figure 6 As shown in (E), it is housed within mold 104.
[0091] The mold 104 moves continuously at the same speed as the preform 10a while being in the closed state. After the preform 10a is blow-molded in the mold 104, it becomes the open state.
[0092] As described above, the preform 10a in Figure 5In the heating process shown in (C), the entire part except for its opening 11a is uniformly heated to a temperature range suitable for molding. Therefore, as Figure 6 As shown in (E), after the heated preform 10a is installed into the mold 104, the preform 10a is stretched along its length within the mold 104 when the extension rod 105 is inserted into the preform 10a.
[0093] Next, for example, sterile gas for primary blow molding and sterile gas for secondary blow molding are sequentially blown into the preform 10a through a blow molding nozzle (not shown), and the preform 10a expands into the container (plastic bottle) 10 of the molded part within the cavity 104c of the mold 104.
[0094] Thus, when the container 10 is formed in the mold 104, the mold 104 continues to move and open, and the finished product of the container 10 is taken out from the mold 104 to the outside (container forming process).
[0095] After container 10 is removed from mold 104 outwards, Figure 7 The period up to the hydrogen peroxide supply process shown in (G), such as Figure 6 As shown in (F), sterile gas Q is blown and transported from the mouth 11 side. Through the blowing of this sterile gas Q, the container 10 delivers hydrogen peroxide directly below the disinfectant supply nozzle 193A in a manner that minimizes microbial contamination.
[0096] expect Figure 6 The sterile gas Q shown in (F) is hot air. By blowing hot air, the temperature of container 10 is prevented from dropping, thus improving the sterilization effect of subsequent hydrogen peroxide.
[0097] In addition, such as Figure 6 As shown in (F), the next disinfectant supply nozzle 193A is located in container 10 (refer to...). Figure 7 The part of the container 10 that moves (G) is provided with a cover 187 in a tunnel-like manner, surrounding the travel path of the container 10. This tunnel-like cover 187 has a canopy portion 187A that covers the opening 11 of the container 10 from above, and this canopy portion 187A is formed as a roof with an inclined surface 187B. Furthermore, in the canopy portion 187A, nozzles 187a that blow sterile gas Q toward the opening 11 of the container 10 or toward the travel path are arranged in a row of tubes or in a slit-like manner. Thus, sterile gas Q is efficiently supplied to the container 10. Additionally, as... Figure 10AAs shown, an inspection device 135 is provided for inspecting the appearance of the container 10 formed adjacent to the cover 187. This inspection device 135 is disposed within chamber 141b, and the cover 187 extends from chamber 141b into chamber 141c1. Thus, the container 10 is situated within chambers 141b and 141c1 (described later), minimizing the contamination of the sterilized container 10 by bacteria (see reference). Figure 10A Alternatively, the tunnel-shaped cover 187 may be omitted, and the chamber 141b housing the blow molding machine 112 may be of class 100 or higher, class 100,000 or lower, preferably class 10,000 or lower, thereby reducing bacterial contamination.
[0098] Next, container 10, which was puffed with sterile gas Q, was... Figure 7 As shown in (G1), at least the outer surface of container 10 is sterilized by supplying hydrogen peroxide as a sterilizing agent to container 10.
[0099] Specifically, hydrogen peroxide mist M or gas G, or a mixture thereof, is blown from the disinfectant supply nozzle 193A (first disinfection section) onto the outer and inner surfaces of the container 10 being transported and held by the clamp 132, including at least the portion where the label 40 is affixed (first disinfection step). The disinfectant supply nozzle 193A is positioned opposite the opening 11 of the container 10. The hydrogen peroxide mist M or gas G, or a mixture thereof, flows down from the tip of the disinfectant supply nozzle 193A and contacts the outer and inner surfaces of the container 10 (see reference). Figure 7 (G1). After exiting the disinfectant supply nozzle 193A, hydrogen peroxide gas G remains in gaseous form, or becomes a mist, or a mixture thereof, and contacts the outer and inner surfaces of container 10. The gas G, mist, or mixture thereof, containing hydrogen peroxide as a disinfectant, contacts and adheres to the outer and inner surfaces of container 10, thereby sterilizing or damaging microorganisms adhering to the outer surface of container 10. As a disinfectant, a disinfectant containing peracetic acid in addition to hydrogen peroxide can also be used. It should be noted that it can also be combined with... Figure 5 Similarly, the disinfectant supply nozzle 106 shown in (A) is branched into two paths, spraying disinfectant not only onto the outer surface of the container 10 but also onto the inner surface.
[0100] In addition, a tunnel 144A is formed in the traveling part of the container 10. Hydrogen peroxide mist M or gas G or a mixture thereof sprayed from the disinfectant supply nozzle 193A flows down along the outer surface of the container 10 and is then retained in the tunnel 144A, thus effectively adhering to the outer surface of the container 10.
[0101] Hydrogen peroxide mist M or gas G can be generated, for example, by a bactericide gas generator.
[0102] The disinfectant supply nozzle 193A can be set at a fixed position on the transport path of the container 10, or it can move synchronously with the container 10.
[0103] like Figure 7 As shown in (G1), hydrogen peroxide mist M or gas G, or a mixture thereof, blown from the disinfectant supply nozzle 193A, comes into contact with the inner and outer surfaces of the container 10. At this time, the container 10 is heated by the heat applied during the preform stage 10a and by the... Figure 6 The heat residue applied to container 10 during the (F) stage is maintained at a specified temperature, thus achieving efficient sterilization.
[0104] When the preform 10a is made of PET, the specified temperature is preferably 40°C to 80°C, more preferably 50°C to 75°C. Below 40°C, the sterilization effect decreases. Above 80°C, the molded container 10 shrinks, which is a problem.
[0105] Alternatively, it can be like Figure 7 As shown in (G2), hydrogen peroxide mist M or gas G, or a mixture thereof, is blown from the disinfectant supply nozzle 193A only onto the outer surface of the container 10, instead of... Figure 7 As shown in (G1), hydrogen peroxide mist M or gas G, or a mixture thereof, is blown onto both the outer and inner surfaces of the container 10. Specifically, the disinfectant supply nozzle 193A can extend along the main body 20 and bottom 30 of the container 10 in the tunnel 144A, and hydrogen peroxide mist M or gas G, or a mixture thereof, can be blown horizontally from the disinfectant supply nozzle 193A toward the outer surface of the main body 20. Alternatively, hydrogen peroxide mist M or gas G, or a mixture thereof, can be blown upwards from the outer surface of the disinfectant supply nozzle 193A toward the bottom 30. If the contents are mineral water, the disinfectant can be replaced with water to spray water vapor onto the container 10. Alternatively, the preform 10a can be transported to the heating furnace 133 without spraying hot air P.
[0106] As described above, the first sterilization process based on the disinfectant supply nozzle 193A (first sterilization section) can also be performed only on the outer surface of the attached label 40 in the container 10.
[0107] Next, as Figure 7 As shown in (H), a container 10 whose inner and outer surfaces are coated with a mist M or gas G of hydrogen peroxide or a mixture thereof is transported to a label attaching section 210. In this label attaching section 210, a label 40 is attached to the area in the main body 20 of the container 10 from the lower part through the central part to the area below the shoulder 12 (label attaching process).
[0108] In this way, the label 40 is not attached to the entire area of the main body 20 of the container 10, but to about 60% of the area from the bottom part through the central part to the bottom of the shoulder 12.
[0109] As described above, the label 40 includes a label body 40a and a printed layer 40b disposed on the label body 40a and displaying the properties of the liquid contents filled in the container 10.
[0110] The label attaching unit 210 includes a star-shaped wheel 211, a label transport roller 212, an adhesive application device 212A, and a label pressing device 215 disposed within the chamber 141c3. The detailed structure of the label attaching unit 210 will be described later.
[0111] Next, as Figure 8 As shown in (I), the container 10 with label 40 is sterilized by supplying hydrogen peroxide as a sterilizing agent to the container 10.
[0112] Specifically, hydrogen peroxide mist M or gas G, or a mixture thereof, is blown from the disinfectant supply nozzle 193 (second disinfection section) onto the container 10, which is being transported in the clamp 132 (second disinfection step). The disinfectant supply nozzle 193 is positioned opposite the opening 11 of the container 10. The hydrogen peroxide mist M or gas G, or a mixture thereof, flows down from the tip of the disinfectant supply nozzle 193, enters the container 10 from the opening 11, and contacts the inner surface of the container 10.
[0113] Furthermore, a tunnel 144 is formed in the traveling part of the container 10. Hydrogen peroxide mist M or gas G or a mixture thereof sprayed from the disinfectant supply nozzle 193 flows down along the outer surface of the container 10 and the outer surface of the label 40, and then remains in the tunnel 144, so it also effectively adheres to the outer surface of the container 10 and the outer surface of the label 40.
[0114] Hydrogen peroxide mist M or gas G can be generated, for example, by a bactericide gas generator.
[0115] The disinfectant supply nozzle 193 can be set at a fixed position on the transport path of the container 10, or it can move synchronously with the container 10.
[0116] like Figure 8 As shown in (I), a mist of hydrogen peroxide M or a gas G or a mixture thereof blown from the disinfectant supply nozzle 193 comes into contact with the inner and outer surfaces of the container 10 and the outer surface of the label 40.
[0117] After the hydrogen peroxide mist M or gas G or a mixture thereof is blown on, such as Figure 8As shown in (J1), container 10 is subjected to gas flushing. Gas flushing is performed by blowing sterile gas N into container 10 through nozzle 145. Foreign matter, hydrogen peroxide, etc. are removed from container 10 through the flow of sterile gas N. At this time, container 10 is in an upright position.
[0118] Preferably, an umbrella-shaped component 184 is installed on the nozzle 145. Through the guiding action of the umbrella-shaped component 184, sterile gas N overflows from the container 10 and flows toward the outer surface of the container 10 to perform gas flushing on the outer surface of the container 10.
[0119] Furthermore, by supplying heated sterile gas N to the container 10 from the nozzle 145, the hydrogen peroxide supplied in the second sterilization step and remaining on the inner and outer surfaces of the container 10 and the outer surface of the label 40 can be activated. Simultaneously, the hydrogen peroxide supplied in the first sterilization step and remaining between the container 10 and the label 40 can also be activated.
[0120] Alternatively, one can use, such as Figure 8 The gas flushing process shown in (J2) is used to replace Figure 8 The gas purging process (J1) is employed. Figure 8 In step (J2), by inverting the container 10 and blowing sterile gas N into the container 10 through the downward-facing opening 11, foreign objects inside the container 10 can fall out of the container 10 through the opening 11. Alternatively, it can continue... Figure 8 The gas rinsing process (J1) is carried out without blowing in sterile gas (N). Figure 8 The (J2) process. Alternatively, it can also be done in... Figure 8 An umbrella-shaped component 184 is mounted on the nozzle 145 shown in (J2). Alternatively, a thin layer of hydrogen peroxide gas can be added to the hot air during the gas rinsing process to improve the sterilization effect. Specifically, hydrogen peroxide mist or gas is added to hot air at 70°C to 170°C. Hydrogen peroxide with a gas concentration of 0.5 mg / L to 5 mg / L can be used as the hydrogen peroxide in this process.
[0121] After gas purging, as needed, such as Figure 9 As shown in (K), hydrogen peroxide adhering to container 10 is rinsed off, and sterile water rinsing with sterile water at room temperature or hot water at 15°C to 85°C is performed using nozzle 146 to remove foreign matter. Preferably, the flow rate of each nozzle 146 is 5L / min to 15L / min, and the rinsing time is 0.2 to 10 seconds.
[0122] As described above, after sterilization is performed in the preform 10a stage, the container 10 is further sterilized with hydrogen peroxide. Therefore, the amount of hydrogen peroxide used in the container 10 is small, so the warm water rinsing process after gas rinsing can be omitted.
[0123] Figure 7 (G1) or Figure 7 The first sterilization process shown in (G2) and Figure 8 The hydrogen peroxide mist M or gas G used in the second sterilization process shown in (I) is as follows.
[0124] When converting the amount of hydrogen peroxide used into the amount of mist M, in order to sterilize container 10, it is usually necessary to apply hydrogen peroxide to container 10 in an amount equivalent to 50 μL / 500 mL bottle to 100 μL / 500 mL bottle by weight (35% by weight). However, as in this embodiment, when sterilization of preform 10a is performed, Figure 7 (G1) or Figure 7 The situation of the first sterilization process shown in (G2), and Figure 8 In the case of the second sterilization process shown in (I), commercial aseptic filling can be achieved by attaching a hydrogen peroxide mist M in an amount of 10 μL / 500 mL to 50 μL / 500 mL.
[0125] Furthermore, when converting the amount of hydrogen peroxide used into the amount of gas G, without sterilizing the preform 10a, it is necessary to blow hydrogen peroxide gas G with a concentration of 5 mg / L to 10 mg / L onto the container 10 in order to sterilize the container 10. However, in the case where pre-sterilization is performed along with preheating of the preform 10a as in this embodiment, Figure 7 (G1) or Figure 7 The situation of the first sterilization process shown in (G2), Figure 8 In both cases of the second sterilization process shown in (I), aseptic filling can be performed by blowing hydrogen peroxide gas G with a concentration of 1 mg / L to 5 mg / L.
[0126] After rinsing with sterile warm water, or if rinsing with sterile water is omitted, after the above-mentioned gas rinsing, such as Figure 9 As shown in (L), the contents L are aseptically filled into the container 10 from the filling nozzle 110 of the filler 139 in a sterile state (content filling process). Next, as... Figure 9 As shown in (M), the opening 11 is sealed by the cap 103 used as a cap by the capping machine 140, thereby obtaining a container 10A containing the contents.
[0127] A contents filling system 1 for aseptically filling contents into containers 10 sterilized with hydrogen peroxide, for example, Figures 10A to 10B It is constructed as shown.
[0128] like Figure 10A and Figure 10BAs shown, the contents filling system includes a bottomed cylindrical preform 10a having an opening 11a that is sequentially supplied at predetermined intervals (see reference). Figure 5 The container 10 formed by the blow molding machine 111 (A1) is equipped with a preform feeder 111 and a blow molding machine 112. In addition, the container 10 is sterilized by the blow molding machine 112 by the following: a label attaching part 210 for attaching a label 40 to the container 10; a sterilizing nozzle 193 (second sterilizing part) for sterilizing the container 10 with the label 40 attached; and a contents filling part 113 for filling the container 10 with contents liquid L and sealing it with a cap 103.
[0129] The contents filling system 1 is surrounded by chambers 141a, 141b, 141c1, 141c3, 141c2, 141g, 141d, 141e, and 141f in the area from the bactericide supply nozzle 106, the blow molding machine 112 to the contents filling section 113.
[0130] In addition, the disinfectant supply nozzle 193 (second disinfection section), together with the gas flushing nozzle 145 and the sterile water flushing nozzle 146, constitute the disinfection machine 188.
[0131] Chamber 141a houses a disinfectant supply nozzle 106 that supplies disinfectant to the preform 10a. Chamber 141b houses a blow molding machine 112 for forming the container 10, as well as wheels 119, 121, and 122. Chamber 141c1 houses a disinfectant supply nozzle 193A. Chamber 141c3 houses a label attaching part 210. Chamber 141c2 houses a disinfectant supply nozzle 193. Chamber 141g houses wheels 191, 192, and 123. Chamber 141d houses a contents filling part 113. Additionally, chamber 141e houses wheels 126 and 127, and chamber 141f constitutes a discharge part.
[0132] The contents filling system 1 is preferably installed in a building where air cleanliness is managed, and more preferably in a room that is weakly positive due to the presence of a medium-efficiency filter. By supplying HEPA-filtered gas to the chamber 141d containing the contents filling section 113, the positive pressure in chamber 141d is the highest, followed by chambers 141e and 141f, resulting in positive pressure in chambers 141d to 141f. Chambers 141b and 141c3 are maintained as cleanrooms. To form a cleanroom, sterile positive-pressure gas passing through a HEPA filter is supplied to chambers 141b and 141c3 before the manufacture of the container 10. Thus, chambers 141b and 141c3 are maintained in a clean (sterile) state, enabling the manufacture of containers 10 with a high level of sterility. Alternatively, sterile positive-pressure gas passing through a HEPA filter can also be supplied to chambers 141a, 141c1, and 141c2. Meanwhile, chambers 141a, 141c1, and 141c2 are subjected to strong exhaust as described later.
[0133] Before introducing sterile positive-pressure gas into all chambers 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2, gas sterilization can be performed using hydrogen peroxide gas at a concentration below 10 mg / L. Alternatively, sterilization of the outer surfaces of the chambers can be performed based on the Standard Operating Procedure (SOP). Furthermore, for chambers 141g, 141d, 141e, and 141f, which have high sterility levels, it is best to clean the outer surfaces of the chambers using a Clean Operating Procedure (COP) before the SOP to prevent droplet dispersion of the product liquid. Additionally, the areas in contact with the preform 10a and container 10 can be sterilized using UV lamps (UV sterilization). Alternatively, a disinfectant containing 1% ethanol and hydrogen peroxide can be used to sterilize the parts in contact with the materials of the mold 104, extension rod 105, and clamp 132. Furthermore, the chamber 141a corresponding to the disinfectant supply nozzle 106, the chamber 141b corresponding to the blow molding machine 112, and the chamber 141c3 corresponding to the label attachment part 210 in all chambers 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2 do not necessarily need to be sterile chambers supplied with sterile gas.
[0134] Between the preform feeder 111 and the contents filling section 113, there are: a preform transport mechanism that transports the preform 10a on a first transport path; and a mold transport mechanism that transports the mold 104, which has a cavity 104c having the finished shape of the container 10, on a second transport path connected to the first transport path. Additionally, a container transport unit is provided that transports the container 10 formed by the mold 104 on a third transport path connected to the second transport path, while simultaneously sterilizing, labeling, and filling the container 10.
[0135] The first transport path of the preform transport mechanism, the second transport path of the mold transport mechanism, and the third transport path of the container transport mechanism are interconnected. Clamps 132 and the like are provided on these transport paths to hold and transport the preform 10a and the container 10.
[0136] The preform handling mechanism includes a preform handling machine 114 on its first handling path that sequentially supplies preforms 10a from the preform supply machine 111 at predetermined intervals. Additionally, it includes a row of wheels 204, 205 that receive and transport the preforms 10a from the end of the preform handling machine 114, and a ring chain 118 that receives and moves the preforms 10a.
[0137] In this case, wheel 204 transports preform 10a, and wheel 204 is provided with bactericide supply nozzles 106 for blowing bactericide onto the inner and outer surfaces of preform 10a (see reference). Figure 5 (A)).
[0138] In addition, the wheel 205 transports the preform 10a, and the wheel 205 is provided with a gas nozzle 180 for blowing hot air into the preform 10a.
[0139] In addition, such as Figure 10A As shown, a bactericide gas generator that generates hydrogen peroxide gas G is positioned at a fixed position on the travel path of the preform 10a in wheel 204, and a device that sprays hydrogen peroxide gas G toward the preform 10a is also present. Figure 5 The bactericide is supplied to nozzle 106 as shown in (A).
[0140] Additionally, a gas nozzle 180 is provided along the travel path of the preform 10a in wheel 205. This nozzle activates the hydrogen peroxide adhering to the inner and outer surfaces of the preform 10a by spraying hot air P toward the preform 10a and discharges it out of the preform 10a. Figure 5(B) Here, considering the sterility required by the product, and the development characteristics of bacteria caused by the pH of the contents, the presence or absence of a nitrogen source, the presence or absence of carbonic acid, etc., if there is no problem with the residual hydrogen peroxide affecting the sterilization intensity and container capacity required for the preform 10a, the preform 10a can be transported to the heating furnace 133 without spraying hot air P.
[0141] like Figure 10A As shown, wheel 204 is surrounded by chamber 141a. An exhaust unit consisting of a filter 136 that decomposes disinfectants such as hydrogen peroxide in the gas within chamber 141a and a drum fan 137 is connected to this chamber 141a. Thus, hydrogen peroxide does not flow into the adjacent blow molding machine 112. In the first transport path, a heating furnace 133 is provided at the point from wheel 117, which connects to wheel 205, to wheel 119, which connects to the second transport path, to heat the preform 10a to the molding temperature.
[0142] The preform 10a is heated uniformly as it moves within the heating furnace 133, and the temperature outside the opening 11a is raised to a temperature suitable for blow molding, i.e., 90°C to 130°C. The opening 11a maintains the airtightness when the cap 103 is covering it, and is therefore kept at a temperature below 70°C to prevent deformation.
[0143] A blow molding machine 112 is arranged around the second transport path. The blow molding machine 112 receives the preform 10a heated in the aforementioned heating furnace 133 and shapes the container 10.
[0144] Above the wheel 119 located between the first transport path of the preform transport mechanism and the second transport path of the mold transport mechanism, a tunnel-shaped cover 186 is provided to cover the preform 10a traveling around the wheel 119 from above its opening 11a (see reference). Figure 6 (D) . Sterile gas Q is blown into the cover 186 through the opening 11a toward the preform 10a. The sterile gas Q may also be diverted from a portion of the sterile gas P supplied by the sterile gas supply device.
[0145] Thus, the preform 10a, surrounded by the chamber 141b that constitutes the clean room, is further covered by a covering 186 that covers sterile gas Q, and faces the blow molding machine 112 while maintaining a high degree of sterility.
[0146] The blow molding machine 112 has a mold 104 arranged along the wheel 120. The mold 104 opens when it comes into contact with the wheel 121, which becomes the beginning of the third transport path, and is received by the clamp 132 around the wheel 121.
[0147] The container 10 that comes out of the blow molding machine 112 and arrives at the wheel 121 is inspected for defects such as molding defects by an inspection device 135 that is configured as needed on the outer periphery of the wheel 121.
[0148] If the inspected container 10 is non-compliant, it is excluded from the transport path by a rejection device (not shown), and only compliant products are transported to wheel 122.
[0149] In the third transport path, above the travel path of container 10 in wheels 121 and 122, a cover 187 is provided in a tunnel-like manner to cover container 10 from above its opening 11a (see reference). Figure 6 (F)). The sterile gas Q blown into the cover 187 may also be a gas partially taken from the sterile gas P supplied by the sterile gas supply device.
[0150] Additionally, a wheel 189, which is connected to the transport container 10 on the downstream side of the wheel 122, is provided with the aforementioned disinfectant supply nozzle 193A. The wheel 189 and the disinfectant supply nozzle 193A constitute the first sterilization section and are housed within the chamber 141c1 (the sterile chamber of the first sterilization section).
[0151] Furthermore, a label attaching section 210 is disposed downstream of the wheel 189 and the disinfectant supply nozzle 193A. This label attaching section 210 includes a star-shaped wheel 211, a transport roller 212, an adhesive application device 212A, and a label pressing device 215, such as a brush. The label attaching section 210 is disposed within a chamber 141c3 (sterile label attaching chamber) located between chambers 141c1 and 141c2.
[0152] Next, using Figure 10A and Figure 10B Detailed explanation of label attachment section 210.
[0153] like Figure 10A and Figure 10B As shown, the label attaching unit 210 includes: a label supply unit 230 that supplies strip labels 40A; a rotary cutter 213 that cuts the strip labels 40A supplied from the label supply unit 230 to create labels 40 that are attached to the container 10; a front label transport roller 214 that holds and transports the labels 40 created by the rotary cutter 213; a label transport roller 212 that holds and transports the labels 40 transported from the front label transport roller 214; and an adhesive application device 212A that applies a hot-melt adhesive or similar adhesive to the labels 40 held on the label transport roller 212. The front label transport roller 214 and the label transport roller 212 include adsorption mechanisms for adsorbing the labels 40.
[0154] The label 40, carried by the conveying roller 212, is affixed to the outer periphery of the main body 20 of the container 10, which is carried by the star wheel 211.
[0155] A holding part (not shown) is provided on the outer periphery of the star-shaped wheel 211 to hold the container 10 rotatably. The container 10, transported from the wheel 189, is held in the holding part of the star-shaped wheel 211 via the transport wheel 223 and the inlet wheel 216. The inlet wheel 216 can also appropriately change the spacing between the containers 10 in a way that the labels 40 do not overlap (interfere) in the transport roller 212. When the container 10 is a multi-faceted container such as a square bottle, and it is necessary to align the label affixing position, an orientation limiting device for the container 10 can be provided between the inlet wheel 216 and the star-shaped wheel 211. Then, the label 40 held by the label transport roller 212 is transferred to the container 10 held by the holding part on the outer periphery of the star-shaped wheel 211. After that, the label transport roller 212 rotates, and the holding part of the star-shaped wheel 211 rotates, thereby wrapping the label 40 around and affixing it to the outer periphery of the container 10 with the applied adhesive. Alternatively, instead of attaching the label 40 to the outer periphery of the container 10 via adhesive, a thermal label can be used, which is then heated and attached to the outer periphery of the container 10.
[0156] When an empty container 10 is transported at high speed, it is subjected to centrifugal force. To accurately wind the label 40, the top surface of the opening 11 and / or the support 17 of the container 10 need to be fixed to maintain its horizontal position. In this case, a conical or cylindrical clamp can be inserted into the opening 11, or the gate 35 located at the center of the bottom 30 of the container 10 can be pressed from below to maintain its horizontal position. If the empty container 10 is a thin-walled bottle, gas (preferably sterile gas filtered by a sterile filter) can be supplied from the top surface of the opening 11 of the container 10, and the label 40 can be wound while maintaining a slightly positive internal pressure within the container 10. Hydrogen peroxide gas (5~300 mg / L) can also be added to the sterile gas to simultaneously sterilize the inner surface of the container 10. Furthermore, when supplying gas from the opening 11 of the container 10, a leak check of the container 10 can also be performed simultaneously. Specifically, a gas supply nozzle can be used to seal the top surface of the opening 11 of the container 10, apply pressure to the container 10 for a certain period of time, and measure the amount (reduction rate) of pressure reduction to check whether there are pinholes in the container 10.
[0157] The container 10, held in the holding part of the star wheel 211, is then transported to the label pressing device 215. The label pressing device 215 is used to press the label 40 wound around the container 10 onto the container 10.
[0158] Furthermore, the label 40 wound around the container 10 is pressed by the label pressing device 215 and thus adhered to the container 10 with high precision and reliability. In particular, the ends of the label 40 are reliably pressed together by the label pressing device 215.
[0159] The container 10, labeled 40, is conveyed to the next wheel 190 via the outlet wheel 217, connecting wheel 224, and discharge wheel 219. The outlet wheel 217, like the inlet wheel 216, can also be used to change the spacing between the containers 10 in conjunction with subsequent sterilization, filling, and capping processes.
[0160] While the container 10 is positioned between the star wheel 211 and / or the outlet wheel 217, the label 40 affixed to the container 10 is inspected by the inspection device 232 to check the affixing status (affixing position, etc.). Containers 10 with defective label affixing status are discharged from the discharge mechanism 255. The inspection device 232 can also be used to simultaneously inspect the opening 11, support 17, and bottom 30 of the container 10.
[0161] exist Figure 10A and Figure 10B In the label attaching section 210 shown, the transport roller 223, inlet roller 216, star-shaped roller 211, outlet roller 217, connecting roller 224, inspection device 232, rotary cutter 213, front label transport roller 214, label transport roller 212, adhesive application device 212A, and transport roller 220 are all housed within chamber 141c3 (sterile chamber of the label attaching section). Additionally, the label supply section 230 is located outside chamber 141c3. Then, the strip label 40A supplied from the label supply section 230 is transported into chamber 141c3 through opening 231, and cut by the rotary cutter 213 via transport roller 220 to create label 40.
[0162] In the third transport path, a label attaching section 210 is provided following the aforementioned wheel 189. Furthermore, wheels 190, 191, 192, and 123 are connected to the label attaching section 210, and disinfectant supply nozzles 193 (second disinfection section) are provided in the row of wheels 190, 191, 192, and 123 (see reference). Figure 8 (I) and sterile gas supply nozzle 145 (refer to) Figure 8 (J1 or (J2)).
[0163] Specifically, multiple units are positioned at fixed locations along the travel path of the container 10 around wheel 190 (in... Figure 10A (Three units are provided) disinfectant supply nozzles 193. Additionally, a tunnel 144 for the container 10 to pass through is also provided corresponding to the disinfectant supply nozzles 193 (see reference). Figure 8(I)). The hydrogen peroxide water mist M or gas G or their mixture blown from the disinfectant supply nozzle 193 enters the interior of the container 10, forming a thin film that adheres to the inner surface of the container 10. In addition, the hydrogen peroxide water mist M or gas G or their mixture flows along the outer surface of the container 10 and the outer surface of the label 40, and fills the tunnel 44, forming a thin film that adheres to the outer surface of the container 10 and the outer surface of the label 40.
[0164] One or more sterile gas supply nozzles 145 and 146 are fixedly positioned along the travel path of the container 10 around the wheel 192. Sterile gas N blown from the sterile gas supply nozzle 145 contacts the inner and outer surfaces of the container 10 and the outer surface of the label 40, removing any remaining hydrogen peroxide film adhering to the surface of the container 10. When the sterile gas N is hot air, the hydrogen peroxide adhering to the inner and outer surfaces of the container 10, the outer surface of the label 40, and the area between the outer surface of the container 10 and the inner surface of the label 40 is activated, improving the sterilization effect. Therefore, even if bacteria adhere to the gap between the label 40 and the container 10, reliable sterilization is possible, maintaining the sterility of the sterile chambers 141g, 141d, 141e, and 141f for an extended period.
[0165] It should be noted that multiple sterilizing agent supply nozzles 193 and sterile gas supply nozzles 145 can also be arranged around each wheel 190, 192 at the same spacing as the container 10, and while rotating synchronously with each wheel 190, 192, hydrogen peroxide gas G and sterile gas N are blown into the container 10.
[0166] In the third transport path, a filler 139 (content filling part) and a capping machine 140 are provided at the position from wheel 124 to wheel 127 connected to wheel 123.
[0167] Specifically, multiple filling nozzles 110 are provided around the wheel 124 for filling the container 10 with the contents L (see reference). Figure 9 The filler 139 is formed by the (L) of the filling liquid. Around the wheel 126 is a cover 103 for mounting on the container 10 filled with the contents L (see reference). Figure 9 The capping machine 140 is used to seal the caps (M).
[0168] In the first to third transport paths described above, wheel 204 is surrounded by chamber 141a. The periphery of the portion from wheel 205, wheel 117 to wheel 122 is surrounded by chamber 141b. The periphery of wheel 189 is surrounded by chamber 141c1. Additionally, the transport wheel 223, inlet wheel 216, star wheel 211, outlet wheel 217, connecting wheel 224, discharge wheel 219, rotary cutter 213, front label transport roller 214, label transport roller 212, and adhesive application device 212A of the label application unit 210 are surrounded by chamber 141c3. Wheel 190 is surrounded by chamber 141c2. The periphery of the portion from wheel 191 to wheel 123 is surrounded by chamber 141g. Furthermore, the periphery of wheels 124 and 125 is surrounded by chamber 141d, and the periphery of the portion from wheel 125 to wheel 127 is surrounded by chamber 141e.
[0169] The chamber 141c1 surrounds the disinfectant supply nozzle 193A (first disinfection section), forming the first disinfection section chamber. In addition, the chamber 141c2 surrounds the disinfectant supply nozzle 193 (second disinfection section), forming the second disinfection section chamber.
[0170] Furthermore, the chamber 141c3 surrounds the label attaching part 210, which includes the transport wheel 223, the inlet wheel 216, the star wheel 211, the outlet wheel 217, the connecting wheel 224, the discharge wheel 219, the rotary cutter 213, the front label transporting roller 214, the label transporting roller 212, and the adhesive application device 212A, thus forming the label attaching part chamber.
[0171] As described above, sterile positive pressure gas is supplied to chambers 141b, 141c3, 141g, 141d, 141e, and 141f, maintaining these chambers in a clean state. Chambers 141a, 141c1, and 141c2 are vented, maintaining a pressure of ~20 Pa to 5 Pa, preferably 1-10 Pa to 1 Pa. Thus, chambers 141a, 141c1, and 141c2 are maintained at a pressure lower than that of chambers 141b and 141c3 (0-10 Pa) and chambers 141g, 141d, 141e, and 141f (10-100 Pa). In particular, chamber 141c3 is configured to be constantly supplied with sterile gas purified by a HEPA filter (not shown), and to be at positive pressure relative to adjacent chambers 141c1 and 141c2.
[0172] As described above, the chamber 141c3 (sterile chamber of the label attachment portion) surrounding the label attachment portion 210 is under positive pressure relative to the chamber 141c1 (sterile chamber of the first sterilization portion) surrounding the disinfectant supply nozzle 193A and the chamber 141c2 (sterile chamber of the second sterilization portion) surrounding the disinfectant supply nozzle 193A. Therefore, hydrogen peroxide in chamber 141c1 or chamber 141c2 does not enter the chamber 141c3 surrounding the label attachment portion 210. This prevents hydrogen peroxide from hindering the operation of the label attachment portion 210.
[0173] In this embodiment, it is preferable that chamber 141b is under positive pressure relative to chamber 141c1, thereby preventing hydrogen peroxide in chamber 141c1 from entering chamber 141b, thus preventing hydrogen peroxide from hindering the blow molding process.
[0174] The interior of the aforementioned chamber 141b is continuously supplied with sterile gas purified by a HEPA filter (not shown). Thus, chamber 141b becomes a cleanroom, preventing the intrusion of microorganisms into its interior.
[0175] All the aforementioned chambers 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2 are sterilized through, for example, COP (cleaning outside of place) or SOP (sterilizing outside of place). Afterward, through exhaust units respectively provided in or integrated into these chambers 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2, sterilizing agent and cleaning agent gases or mists are discharged from each chamber 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2 to the outside of the chamber. Furthermore, sterile gas purified by a washer, filter, etc. (not shown), is supplied to these chambers 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2 to maintain the sterility of each chamber. It should be noted that for chambers 141g, 141d, 141e, and 141f, COP and SOP must be implemented, but for chambers 141a, 141b, 141c1, 141c2, and 141c3, COP and SOP may not be required. In addition, among all chambers 141b, 141c3, 141g, 141d, 141e, 141f, 141a, 141c1, and 141c2, chambers 141a, 141b, 141c1, 141c2, and 141c3 do not necessarily need to be sterile chambers that supply sterile gases.
[0176] Furthermore, chamber 141c1 functions as an ambient gas isolation chamber, separating the ambient gas between chambers 141b and 141c3. An exhaust unit, identical to the aforementioned exhaust unit, is also connected to chamber 141c1, forcibly expelling the internal gas of chamber 141c1 to the outside. Additionally, chamber 141c1 is under negative pressure relative to chamber 141b. This prevents gases such as cleaning agents generated by COP and SOP in chamber 141d, and disinfectant mist generated in chamber 141c2, as well as ambient gas from chamber 141c3, from flowing into chamber 141b of the blow molding machine 112 via chamber 141c1.
[0177] It should be noted that the sterilization intensity of the environment (chamber, product liquid pipeline) in the sterilization device of the container and the contents of the container 10A containing the contents varies depending on the pH, nitrogen source, carbon source, catechin, and other contents of the contents.
[0178] Therefore, the content and necessary areas of COP and SOP vary depending on the content. Furthermore, depending on the product, sterile gas supply piping and bottle sterilization may not always be required.
[0179] Next, refer to Figures 5-11 This describes the actions of the content filling system, i.e., the content filling method.
[0180] First, such as Figure 5 As shown in (A), a preform 10a is supplied from a preform feeder 111 and is transported by a preform transporter 114 to a wheel 204.
[0181] The preform 10a is transported by the wheel 204, during which hydrogen peroxide gas G or mist or a mixture thereof is supplied from the bactericide supply nozzle 106 to the inner and outer surfaces of the preform 10a.
[0182] Next, a preform 10a, to which hydrogen peroxide gas G, mist, or a mixture thereof is supplied to the inner and outer surfaces, is conveyed to the wheel 205. Furthermore, during the rotational conveying of the preform 10a by the wheel 205, hot air P is blown from the gas nozzle 180 onto the inner side of the preform 10a (see reference). Figure 5 (B) The heat of the hot air P activates the hydrogen peroxide adhering to the inner surface of the preform 10a, thus sterilizing the microorganisms adhering to the preform 10a. In addition, the remaining hydrogen peroxide is removed from the preform 10a by the hot air P.
[0183] Subsequently, the preform 10a is driven by the mandrel 143 on the annular chain 118 (see reference). Figure 5 (C) is received and transported into the heating furnace 133.
[0184] Inside the heating furnace 133, the preform 10a is heated by the infrared heater 118a, and the temperature of the entire preform, except for the opening 11a, is uniformly heated to a temperature range suitable for blow molding. During this period, the preform 10a is heated as a whole, which activates the hydrogen peroxide remaining on the outer surface of the preform 10a, sterilizing the outer surface of the preform 10a.
[0185] As the preform 10a, heated to the forming temperature within the furnace 133, travels around the wheel 119, it is simultaneously blown with sterile gas Q (refer to...) while passing through the cover 186. Figure 6 (D) Thus, the preform 10a is transported to the blow molding machine 112 while maintaining sterility. With the sterile gas Q being hot air, the preform 10a is appropriately maintained at a temperature suitable for molding and arrives at the blow molding machine 112.
[0186] When the preform 10a passes through the outer periphery of the wheel 120, as Figure 6 As shown in (E), it is inserted into the mold 104 and expanded into the container 10 within the cavity 104c by blowing in sterile high-pressure gas.
[0187] After the molded container 10 is opened in the mold 104, it is taken out of the mold 104 by the clamps around the wheel 121 and inspected by the inspection device 135 for any molding defects.
[0188] Container 10 containing defective products is excluded from the line by a discharge device (not shown). Only containers 10 containing acceptable products are handed over to wheel 122 and then transported by wheel 189.
[0189] Additionally, as container 10 travels from wheel 121 to wheel 122, it passes through cover 187 while being aspirated with sterile gas Q (see reference). Figure 6 (F) Thus, container 10 is transported to wheel 189 while maintaining sterility. In the case that the sterile gas Q is hot air, container 10 is appropriately maintained at a temperature suitable for sterilization and arrives at wheel 189.
[0190] When container 10 reaches wheel 189, container 10 travels around wheel 189. During this time, sterilization is performed by blowing hydrogen peroxide mist M or gas G, or a mixture thereof, onto at least the outer surface and then the inner surface of container 10 from sterilizing agent supply nozzle 193A (first sterilization section) (see reference). Figure 7 (G1) and Figure 7 (G2)).
[0191] Thus, the process of blowing hydrogen peroxide mist M or gas G or a mixture thereof from the disinfectant supply nozzle 193A is called the first disinfection process. In this first disinfection process, hydrogen peroxide mist M or gas G or a mixture thereof may also be blown onto only the outer surface of the container 10, without affecting both the inner and outer surfaces.
[0192] Hydrogen peroxide aqueous solution, which is a gas or mist solution temporarily vaporized above its boiling point, is supplied to container 10. The amount of hydrogen peroxide gas or mist condensed and adhering to at least the outer surface of container 10 is preferably 0.01 μL / cm³, calculated as 35% by mass. 2 Above and 0.1 μL / cm 2 The following range. This is achieved by making the amount of hydrogen peroxide adsorbed 0.01 μL / cm. 2 The above results in a uniform sterilization effect within container 10. On the other hand, if the amount of hydrogen peroxide adhering is 0.1 μL / cm... 2 The above increases the amount of hydrogen peroxide used and the exhaust air volume, which is uneconomical. More preferably, the amount of hydrogen peroxide condensate film adhering to the container 10, calculated as at least 35% by mass relative to the outer surface, is 0.03 μL / cm². 2Above and 0.07 μL / cm 2 The area on the outer surface of the container 10 that is attached to the label is preferably at least the entire area, but it may also be limited to the area 0 mm to 30 mm away from the unlabeled position in the vertical direction where the label is attached.
[0193] After hydrogen peroxide is supplied to the container 10 from the disinfectant supply nozzle 193A, it is transported to the label attachment section 210. Alternatively, sterile gas can be used to remove hydrogen peroxide adhering to the outer surface of the container 10 at the point where it is transported to the label attachment section 210. In this case, hot air can also be used to activate the hydrogen peroxide.
[0194] The following explanation Figure 10A and Figure 10B The label attaching process of the label attaching unit 210 shown.
[0195] like Figure 10A and Figure 10B As shown, in the label attaching section 210, a strip label 40A is supplied from the label supply section 230. The strip label 40A from the label supply section 230 is cut by the rotary cutter 213 to form a label 40.
[0196] Next, the label 40 produced by the rotary cutter 213 is transported via the front label transport roller 214 to the label transport roller 212, where it is held and transported by the label transport roller 212. Furthermore, while the label 40 is held and transported by the label transport roller 212, a hot melt adhesive (or glue) is applied to the label 40 from the adhesive application device 212A.
[0197] Subsequently, the label 40, which is held by the label transport roller 212 and coated with adhesive by the adhesive application device 212A, is affixed to the outer periphery of the main body 20 of the container 10 transported by the star wheel 211.
[0198] A holding portion (not shown) is provided on the outer periphery of the star wheel 211 to hold the container 10 rotatably. The container 10, conveyed by the wheel 189, is held in the holding portion of the star wheel 211 via the transport wheel 223 and the inlet wheel 216. Then, a label 40, held by the label transport roller 212 and coated with adhesive by the adhesive application device 212A, is transferred to the container 10 held by the holding portion on the outer periphery of the star wheel 211. Afterward, the label transport roller 212 rotates, and the holding portion of the star wheel 211 rotates, thereby winding and attaching the label 40 to the outer periphery of the container 10.
[0199] Then, the container 10 held in the holding part of the star wheel 211 is transported to the label pressing device 215. Next, the label 40 wound on the container 10 is pressed onto the container 10 using the label pressing device 215.
[0200] Furthermore, the label 40 wound around the container 10 is pressed by the label pressing device 215 and thus adhered to the container 10 with high precision and reliability. In particular, the ends of the label 40 are reliably pressed together by the label pressing device 215.
[0201] The container 10, labeled 40, is sent to the next wheel 190 via the outlet wheel 217, the connecting wheel 224, and the discharge wheel 219.
[0202] During this period, the label 40 affixed to the container 10 is inspected by the inspection device 232 to check the affixing status (affixing position, etc.) of the label 40. Containers 10 with poor label affixing status are discharged from the discharge mechanism 255 via the wheel 224. Alternatively, without checking the label affixing status by the inspection device 232, the container 10 is filled with the contents liquid L by the filler 139 to create a container 10A containing the contents liquid. When checking the liquid level and the cap 103 of the container 10A containing the contents liquid, the affixing status of the label 40 can also be checked simultaneously.
[0203] Next, container 10 is moved toward wheel 190, and container 10 moves around wheel 190 while... Figure 8 As in (I), hydrogen peroxide water mist M or gas G or a mixture thereof is blown from the disinfectant supply nozzle 193 to be sterilized. In this case, hydrogen peroxide water mist or gas G or a mixture thereof is blown from the disinfectant supply nozzle 193 (second sterilization section) to the inner and outer surfaces of the container 10 and the outer surface of the label 40 to be sterilized (second sterilization step). Then, the container 10 moves around the wheel 192 while... Figure 8 The container 10 is gas-washed by blowing sterile gas N onto it, as in (J1) or (J2).
[0204] It should be noted that, as another implementation method, such as Figure 10B As shown, the disinfectant supply nozzle 193A can also be disposed on the wheel 216, and the disinfectant supply nozzle 193 can be disposed on the wheel 217. The wheel 216 and the wheel 217 are disposed within the disinfectant spray chamber 141c4 (see reference). Figure 10B(The dotted lines indicate this). In this case, chamber 141c3, chamber 141c1 housing wheel 189, and chamber 141c2 housing wheel 190 can be integrally constructed. Alternatively, wheels 189 and 223 (with disinfectant supply nozzle 193A), and wheels 190 and 191 (with disinfectant supply nozzle 193A) can be removed. By removing wheels 189, 223, 190, and 191, the number of wheels can be reduced, making the overall device more compact. In this case, to prevent the disinfectant in the disinfectant spray chamber 141c4 from flowing out of the star wheel 211, the disinfectant spray chamber 141c4 is set to a negative pressure relative to chamber 141c3, and the pressure difference between the disinfectant spray chamber 141c4 and chamber 141c3 is set to 10 Pa or more. Additionally, if the disinfectant (especially hydrogen peroxide gas or mist, or mixtures thereof) condenses and adheres to the outer surface of the container after spraying, affecting the label's installability, sterile hot air can be used to vaporize the disinfectant. It can also vaporize a portion of the area where hot-melt or other adhesives are attached to the container.
[0205] Then, the container 10 reaches the contents filling section 113 in the chamber 141d via the wheel 123.
[0206] The contents liquid (also referred to as contents) of container 10, which has been pre-sterilized in the contents filling section 113, is as follows: Figure 9 The contents (L) are filled by the filling nozzle 110 of the filler 139 (content filling section). The container 10 filled with the contents L is sealed by applying a cap 103 through a capping machine (also called a sealing section) 140 disposed in the chamber 141e (see reference). Figure 9 (M), and discharged outward from the outlet of chamber 141f.
[0207] It should be noted that in this embodiment, the process of adsorbing the bactericide onto the preform 10a is carried out on a linear production line connected to the blow molding machine. However, as long as the bactericide components can be maintained in an adsorbed state during blow molding, it can also be done offline.
[0208] As described above, according to this embodiment, a label attaching part 210 is provided between the disinfectant supply nozzle 193A (first disinfection section) that blows hydrogen peroxide onto the container 10 and the disinfectant supply nozzle 193 (second disinfection section) that blows hydrogen peroxide onto the container 10 with the label 40 attached, and the label 40 is attached to the main body 20 of the container 10 through the label attaching part 210. By assembling the label attaching part 210 on the upstream side of the filler 139 in this way, the system as a whole can be compactly configured compared to, for example, the case where the label attaching part 210 is provided on the downstream side of the filler 139.
[0209] That is, with the label attachment section 210 located downstream of the filler 139, the container 10 is already filled with liquid. Therefore, the container 10 filled with liquid is handled while a label is applied to it. Handling the container 10 filled with liquid is not easy, and the labeling accuracy is reduced. Therefore, there are cases where a larger buffer area for the container is provided in front of the label attachment section to anticipate potential malfunctions. In this case, the overall system area increases. Furthermore, the outer surface of the filled container 10 is mostly covered with cleaning water. To avoid label application abnormalities, the water droplets on the outer surface of the container 10 need to be removed using gas or the like before labeling. In addition, the containers 10 discharged from the filler 139 become more dispersed due to their spacing, so the inlet of the label attachment section needs to be singled out and adjusted to an even spacing using screws or the like. When the size and shape of the containers 10 are different, the screws used for spacing adjustment need to be replaced each time.
[0210] In contrast, according to this embodiment, the label attachment portion 210 is disposed between the disinfectant supply nozzle 193A (first disinfection portion) and the disinfectant supply nozzle 193 (second disinfection portion), thus enabling the label 40 to be precisely attached to the container 10 before filling with the contents using the label attachment portion 210. Furthermore, since a buffer area is not required at the front of the label attachment portion 210, the entire contents filling system can be compactly configured.
[0211] In addition, after applying hydrogen peroxide to the inner and outer surfaces of the container 10 using the disinfectant supply nozzle 193A (first disinfection section) and applying the label 40 to the outer surface of the container 10 using the label application section 210, hydrogen peroxide is applied to the inner and outer surfaces of the container 10 and the outer surface of the label 40 using the disinfectant supply nozzle 193 (second disinfection section).
[0212] Therefore, hydrogen peroxide can be blown onto the inner and outer surfaces of the container 10 and the outer surface of the label 40, thereby sterilizing microorganisms attached to the inner and outer surfaces of the container 10 and the outer surface of the label 40.
[0213] Then, a gas flushing process is performed in which sterile gas N is blown onto container 10 from nozzle 145.
[0214] In this case, by blowing sterile gas N heated from nozzle 145, hydrogen peroxide that has been blown onto and adhered to the inner and outer surfaces of container 10 and the outer surface of label 40 by the sterilizing agent supply nozzle 193 (second sterilization section) can be activated. The hydrogen peroxide thus activated can reliably sterilize microorganisms adhering to the inner and outer surfaces of container 10 and the outer surface of label 40.
[0215] Simultaneously, the hydrogen peroxide remaining between the outer surface of the container 10 and the inner surface of the label 40, which is blown onto the container 10 by the disinfectant supply nozzle 193A (first disinfection section), can be activated. This activated hydrogen peroxide reliably disinfects microorganisms adhering between the outer surface of the container 10 and the inner surface of the label 40. In this case, the activated hydrogen peroxide can be used to disinfect at least the outer surface of the container 10 or at least the inner surface of the label 40.
[0216] In addition, the disinfectant supply nozzle 193A is surrounded by chamber 141c1 (the first sterile chamber of the sterile sterilization section), the label attachment section 210 is surrounded by chamber 141c3 (the sterile chamber of the label attachment section), and the disinfectant supply nozzle 193 is surrounded by chamber 141c2 (the sterile chamber of the second sterile sterilization section).
[0217] In this case, chamber 141c3 is under positive pressure relative to chambers 141c1 and 141c2. Therefore, during the operation of the contents filling system 1, hydrogen peroxide in chambers 141c1 and 141c2 does not penetrate into chamber 141c3, and the label attachment portion 210 in chamber 141c3 is not hindered by hydrogen peroxide.
[0218] Furthermore, the chamber 141b equipped with the blow molding machine 112 is under positive pressure relative to the chamber 141c1. Therefore, during the operation of the contents filling system 1, hydrogen peroxide in the chamber 141c1 does not intrude into the chamber 141b, nor does it hinder the operation of the blow molding machine 112 in the chamber 141d. In addition, this embodiment illustrates an example of supplying a disinfectant to the outer surface of the container 10 and then affixing a label 40 to the outer surface of the container 10. However, this is not limited to this; the label 40 may be affixed to the outer surface of the container 10 after applying a disinfectant. Alternatively, the label 40 may be affixed to the outer surface of the container 10 after disinfecting the outer surface of the container 10 and the label 40 with a disinfectant. Alternatively, the outer surface of the container 10 and the label 40 may be exposed to ultraviolet light, radiation, or heat, and the label 40 may be affixed to the container 10 after disinfection of the outer surface of the container 10 and the label 40.
[0219] When using a UV lamp 250 to sterilize the outer surface of the container 10 and the label 40 with ultraviolet light, the UV lamp 250 can be set vertically to irradiate the entire surface of the attached label 40 and the container 10 (at least the surface with the label attached) (see reference). Figure 10CThe UV lamp irradiates the main body of the container 10 while rotating it via the star-shaped wheel 211, but the number of lamps that can irradiate the entire circumference of the container 10 can be set. The same UV lamp can be used to sterilize the surface of the attached label, and the UV lamp used to sterilize the main body of the container 10, or they can be set separately. Alternatively, sterile gas can be sprayed into the container 10 on the worktable 251 from the fixed nozzle 252. The UV lamp 250 is used to simultaneously sterilize the outer surfaces of the label 40 and the container 10 with ultraviolet light. Ultraviolet light is a type of electromagnetic wave with a wavelength of 100nm to 380nm, and wavelengths of 100nm to 280nm, especially those known as UV-C, are effective for sterilization. Furthermore, the wavelength of 253.7nm is the most effective for sterilization, and wavelengths including this are optimal. Alternatively, low-pressure mercury lamps, high-pressure mercury lamps, xenon flash lamps, ultraviolet LEDs, etc., can also be used. Electron beams can also be used instead of ultraviolet light. Furthermore, in this embodiment described above, an example of sterilizing the container 10 after label 40 is affixed by blowing a disinfectant, is given, but the method is not limited to this. The container 10 after label 40 can also be sterilized by electron beam irradiation.
[0220] Explanation of reference numerals in the attached figures
[0221] 1: Contents Filling System
[0222] 10: Container
[0223] 10A: Container containing liquid contents
[0224] 10a: Preform
[0225] 40: Tags
[0226] 40A: Strip label
[0227] 104: Mold
[0228] 106: Bactericide supply nozzle
[0229] 110: Filling nozzle
[0230] 111: Preform Feeder
[0231] 112: Blow Molding Machine
[0232] 113: Contents Filling Section
[0233] 114: Preform Handling Machine
[0234] 118: Circular Chain
[0235] 118a: Infrared heater
[0236] 119, 120, 121, 122, 123, 124, 125, 126, 127: Wheel
[0237] 139: Packing device
[0238] 140: Capping machine
[0239] 141a, 141b, 141c1, 141c2, 141c3, 141d, 141e, 141f, 141g: Chambers
[0240] 143: Mandrel
[0241] 144: Tunnel
[0242] 144A: Tunnel
[0243] 145: Nozzle
[0244] 146: Nozzle
[0245] 180: Gas nozzle
[0246] 186: Covering
[0247] 187: Covering
[0248] 193, 193A: Bactericide supply nozzles
[0249] 204, 205: Wheels
[0250] 210: Labeling attachment part
[0251] 211: Star Wheel
[0252] 212: Label Transfer Roller
[0253] 212A: Adhesive application apparatus
[0254] 213: Rotary Cutter
[0255] 214: Front Label Transfer Roller
[0256] 215: Label pressing device
[0257] 230: Label Supply Department
[0258] 250: UV lamp
Claims
1. A content filling system, characterized in that, have: The first sterilization section sterilizes at least the outer surface of the container or at least the inner surface of the label; A label attaching part, which attaches the label to the outer surface of the container after it has been sterilized by the first sterilization part; The second sterilization unit sterilizes the container on which the label is attached by the label attachment part; The contents filling section fills the contents into the container sterilized by the second sterilization section; A sealing part that seals the container.
2. The content filling system according to claim 1, characterized in that, A gas flushing section for blowing hot air onto the container is provided between the second sterilization section and the contents filling section.
3. The content filling system according to claim 1, characterized in that, The second sterilization section blows sterilizing agent onto the inner and outer surfaces of the container.
4. The content filling system according to claim 1, characterized in that, The first sterilization section, the label attachment section, and the second sterilization section are all surrounded by a first sterilization section chamber, a label attachment section chamber, and a second sterilization section chamber, which are respectively divided. The label attachment section chamber of the label attachment section is under positive pressure relative to the first sterilization section chamber of the first sterilization section and / or the second sterilization section chamber of the second sterilization section.
5. The content filling system according to claim 4, characterized in that, The label attaching section includes: a label supply section that supplies strip labels; a rotary cutter that cuts the strip labels supplied by the label supply section to make the labels; a label transport roller that holds the labels made by the rotary cutter while adsorbing them; and a star wheel that transports the container, receives the labels held by the label transport roller, and attaches the labels to the container, wherein the star wheel, the label transport roller, and the rotary cutter are housed within the cavity of the label attaching section.
6. The content filling system according to claim 5, characterized in that, An adhesive application device is provided for applying adhesive or glue to the labels held on the label transport roller.
7. The content filling system according to claim 5, characterized in that, The label supply unit is disposed outside the label attachment chamber, and the strip label is supplied from the label supply unit into the label attachment chamber through the opening of the label attachment chamber.
8. A method for filling contents, characterized in that, have: The first sterilization process involves sterilizing at least the outer surface of the container in the first sterilization section. The labeling process involves affixing a label to the outer surface of the container after sterilization by the first sterilization section at the labeling attachment part. The second sterilization process involves sterilizing the container with the label attached by the label attachment part in the second sterilization section. The contents filling process involves filling the contents into the container that has been sterilized by the second sterilization unit using the contents filling section; The process of sealing the container using a sealing part.
9. The content filling method according to claim 8, characterized in that, Hot air is blown onto the container through a gas flushing section located between the second sterilization section and the contents filling section.
10. The content filling method according to claim 8, characterized in that, The second sterilization section applies a sterilizing agent to the inner and outer surfaces of the container.
11. The content filling method according to claim 8, characterized in that, The first sterilization section, the label attachment section, and the second sterilization section are all surrounded by a first sterilization section chamber, a label attachment section chamber, and a second sterilization section chamber, which are respectively divided. The label attachment section chamber of the label attachment section is under positive pressure relative to the first sterilization section chamber of the first sterilization section and / or the second sterilization section chamber of the second sterilization section.
12. The content filling method according to claim 11, characterized in that, The label application process includes: a process of supplying a strip label from a label supply unit; a process of cutting the strip label from the label supply unit using a rotary cutter to produce the label; a process of transporting and holding the label produced by the rotary cutter using a label transport roller; and a process of affixing the label held by the label transport roller to the container using a star wheel, wherein the star wheel, the label transport roller, and the rotary cutter are housed within the label application unit cavity.
13. The content filling method according to claim 12, characterized in that, Adhesive is applied to the labels held on the label transport roller using an adhesive application device.
14. The content filling method according to claim 12, characterized in that, The label supply unit is disposed outside the label attachment chamber, and the strip label is supplied from the label supply unit into the label attachment chamber through the opening of the label attachment chamber.
Citation Information
Patent Citations
Label transfer apparatus
JP2013133130A
Preform sterilization method and apparatus
JP2015116814A