WO2022019228A1

WO2022019228A1 - Method for manufacturing container with label, and container with label

Info

Publication number: WO2022019228A1
Application number: PCT/JP2021/026777
Authority: WO
Inventors: 周平植村; 哲雄畑
Original assignee: 株式会社フジシールインターナショナル
Priority date: 2020-07-20
Filing date: 2021-07-16
Publication date: 2022-01-27
Also published as: JPWO2022019228A1

Abstract

A method for manufacturing a container with a label is provided with: a step for readying a label (20) including a cylindrical film substrate (30) that has one end (31) and the other end (32) in the axial direction, and a joining part (40) partially joining the inner surface of the film substrate (30) on the one end (31) side so as to form channels (50); and a step for covering a container (10) with the label (20). A self-stretchable film is used as the film substrate (30). In the step for covering the container (10) with the label (20), the container (10) is covered with the label (20) so that the label (20) at the portion located on the side of the other end (32) of the film substrate (30) includes a portion attached so as to be in contact with the container (10), and a gap communicating through the channels (50) to the exterior of the label is formed between the container (10) and the label (20) at the portion located on the side of the one end (31) of the film substrate (30).

Description

How to make labeled containers and labeled containers

This disclosure relates to a method for manufacturing a labeled container and a labeled container.

In recent years, as a label used for a labeled container, a label using a self-stretchable film base material has been developed. A label using such a self-stretchable film base material is disclosed in Japanese Patent Application Laid-Open No. 2014-069815 (Patent Document 1).

In the label disclosed in Patent Document 1, the inner surfaces of the film base materials are adhered to each other on the upper end side of the label, so that a band-shaped sealing portion is formed at the upper end of the label.

Japanese Unexamined Patent Publication No. 2014-69815

As disclosed in Patent Document 1, when a label composed of a self-stretchable film base material and having a sealed upper end side is put on the container, the lower end side portion of the label is in close contact with the outer periphery of the container. , A considerable amount of air accumulates in the space between the top of the label and the top of the container.

When the labels are sequentially applied to a plurality of containers, if the amount of air accumulated in the space is different each time the labels are applied to the containers, the shape of the label changes, which causes the labeled container. The appearance becomes unstable. Further, if a hole is made in the film base material so as to penetrate in the thickness direction of the film base material in order to allow the air to escape, the cosmeticity of the labeled container is deteriorated.

The present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is a method for manufacturing a labeled container and a labeled container capable of maintaining cosmeticity while maintaining a stable appearance. Is to provide.

The method for manufacturing a labeled container based on the present disclosure is a tubular film base material having one end and the other end in the axial direction, and the film base on one end side so as to form a flow path through which gas can flow. The present invention includes a step of preparing a label including a joint portion for partially joining the inner surface of the material along the crossing direction intersecting the axial direction, and a step of covering the container with the label. A self-stretchable film is used as the film base material. In the step of covering the container with the label, the label of the portion of the film substrate located on the other end side includes the portion to be attached in contact with the container, and the film substrate is covered with the label. The container is covered with the label so that a gap communicating with the outside of the label via the flow path is formed between the label on the portion located on one end side and the container.

In the label, the part to be mounted in contact with the container means a part held in the container, and as long as it is held in the container, a part of the mounted part is separated from the outer peripheral surface of the container. The mounted portion may be in continuous contact with the outer peripheral surface of the container in the circumferential direction.

In the method for manufacturing a labeled container based on the present disclosure, in the step of preparing the label, a long body in which the tubular film base material is continuously extended along a direction parallel to the axial direction is used. It may include a step of preparing, a step of joining the long body in the crossing direction, and a step of cutting the long body. In this case, the elongated body may include an upstream end located on the upstream side and a downstream end located on the downstream side in a direction parallel to the axial direction. Further, in the step of joining the long body, the long body has a predetermined distance from the downstream end portion to the upstream side so that the flow path and the joint portion are formed. The inner surface may be partially joined along the crossing direction.

In the method for manufacturing a labeled container based on the present disclosure, in the step of joining the long bodies, the area of the flow path is increased when viewed from the directions orthogonal to the axial direction and the crossing direction. The inner surface of the elongated body may be partially joined so as to be smaller than the area of the joining portion.

In the method for manufacturing a labeled container based on the present disclosure, in the step of joining the long bodies, the length is provided so that a plurality of the flow paths are provided at intervals along the crossing direction. The inner surface of the scale may be partially joined.

In the method for manufacturing a labeled container based on the present disclosure, in the step of cutting the long body, the long body is cut in the crossing direction on the upstream side of the joint portion, and the long body is cut from the joint portion. Also, on the upstream side, a non-joined region in which the inner surface of the elongated body is not joined may be formed.

In the method for manufacturing a labeled container based on the present disclosure, the step of covering the container with the label is expanded with the step of widening the opening provided on the other end side of the film substrate. It is preferable to include a step of relatively inserting the container into the opening. In this case, in the step of relatively inserting the container, it is preferable to insert the container relatively so that the outer surface of the container slides on the inner peripheral surface of the label.

In the method for manufacturing a labeled container based on the present disclosure, in the step of relatively inserting the container, the gas existing between the container and the label in the portion inserted in the label is used. It is preferable to relatively insert the container while discharging it from the flow path to the outside of the label.

In the method for manufacturing a labeled container based on the present disclosure, the step of covering the container with the label may further include a step of turning over the film substrate, and the container is relatively inserted. In the process, the container may be relatively inserted into the film substrate turned inside out.

The labeled container according to the present disclosure is a tubular film base material having one end and the other end in the axial direction, and the film base material on the one end side so that a flow path through which gas can flow is formed. It comprises a label comprising a joint that partially joins the inner surface along the crossing direction intersecting the axial direction, and a container coated with the label. The film substrate is composed of a self-stretchable film. The label of the portion of the film substrate located on the other end side includes a portion to be attached in contact with the container. The label of the portion of the film substrate located on one end side covers the container so that a gap is formed between the film base material and the container. The void and the outside of the label communicate with each other through the flow path.

In the labeled container based on the present disclosure, it is preferable that the area of the flow path is smaller than the area of the joint when viewed from the directions orthogonal to the axial direction and the crossing direction.

In the labeled container based on the present disclosure, a plurality of the flow paths may be provided at intervals along the crossing direction.

In the labeled container based on the present disclosure, in the axial direction, between the one end of the film base material and the joint portion, in the axial direction surrounding the axial direction, the inside of the film base material. A non-bonded region where the surface is not bonded may be provided.

According to the present disclosure, it is possible to provide a method for manufacturing a labeled container and a labeled container that can maintain cosmeticity while maintaining a stable appearance.

It is a front view of the container with a label which concerns on Embodiment 1. FIG. FIG. 3 is a cross-sectional view taken along the line II-II shown in FIG. It is a schematic diagram which enlarged and shows one end side of the label | container which concerns on Embodiment 1. FIG. FIG. 3 is a cross-sectional view taken along the line IV-IV shown in FIG. It is sectional drawing which follows the VV line shown in FIG. It is a flow chart which shows the manufacturing flow of the labeled container which concerns on Embodiment 1. FIG. It is a top view which shows the step of preparing a long body in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. It is a schematic cross-sectional view which shows the process of joining a long body in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. It is a top view which shows the post-state of the process of joining a long body in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. It is a top view which shows the step of cutting a long body in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. It is a schematic diagram which shows the step of widening the opening of a label in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. It is a schematic diagram which shows the step of inserting a container relatively into an opening in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. It is a figure which shows the post-state of the process of relatively inserting a container into an opening in the manufacturing process of the labeled container which concerns on Embodiment 1. FIG. FIG. 3 is a cross-sectional view of a label of a portion where a joint portion is formed in the labeled container according to the second embodiment. It is a schematic cross-sectional view which shows the process of joining a long body in the manufacturing process of the labeled container which concerns on Embodiment 2. FIG. FIG. 3 is an enlarged schematic view showing one end side of the labeled container according to the third embodiment.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the figures. In the embodiments shown below, the same or common parts are designated by the same reference numerals in the drawings, and the description thereof will not be repeated.

(Embodiment 1)
FIG. 1 is a front view of the labeled container according to the first embodiment. FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG. FIG. 3 is an enlarged schematic view showing one end side of the labeled container according to the first embodiment. FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. FIG. 5 is a cross-sectional view taken along the line VV shown in FIG. The labeled container 100 according to the first embodiment will be described with reference to FIGS. 1 to 5.

As shown in FIG. 1, the labeled container 100 includes a container 10 and a label 20. The container 10 includes a container body 11 and a lid portion 16. The container body 11 has an axial direction parallel to the height direction. The container body 11 has one end 11a and the other end 11b in the axial direction. The container body 11 has a mouth portion 12, a neck portion 13, a shoulder portion 14, and a body portion 15. The mouth portion 12, the neck portion 13, the shoulder portion 14, and the body portion 15 are continuous in order along the axial direction.

The mouth portion 12 is located on the one end 11a side of the container body 11. The mouth portion 12 opens toward the side opposite to the side on which the body portion 15 is located. The inner peripheral length of the mouth portion 12 is substantially constant. The mouth portion 12 is a portion covered by the lid portion 16.

The body portion 15 is located on the other end 11b side of the container body 11. The outer shape of the body portion 15 is generally larger than the outer shape of the mouth portion 12. The body portion 15 includes a portion of the container body 11 having the maximum peripheral length. In the first embodiment, the perimeter of the body portion 15 increases once toward the other end 11b side of the container body 11 along the axial direction, and the other end 11b of the container body 11 starts from the portion having the maximum perimeter. It has a shape in which the perimeter decreases as it goes further toward. The circumference of the body portion 15 may be substantially constant in the axial direction.

The shoulder portion 14 is connected to the body portion 15. The shoulder portion 14 is provided so that the peripheral length decreases toward one side (mouth portion 12 side) in the axial direction. The shoulder portion 14 has a shape that curves inward toward one side in the axial direction when viewed in a cross section parallel to the axial direction.

The neck portion 13 connects the mouth portion 12 and the shoulder portion 14. The neck portion 13 extends substantially linearly when viewed in a cross section parallel to the axial direction. The neck portion 13 may be provided so that the peripheral length becomes smaller toward one side in the axial direction, or may be provided so that the peripheral length becomes substantially constant.

The container body 11 is a soft container obtained by blow molding a synthetic resin such as polyethylene, polypropylene, polyamide, polyester, etc., and is a multi-layer container or the like in which a single layer or a gas barrier layer is laminated, and presses the body portion 15. It is a container used for the purpose of taking out the contents to the outside. That is, the container body 11 has a squeeze property.

The inside of the container body 11 contains, for example, liquids such as beverages, seasonings, and chemicals. The contents contained in the container main body 11 are not limited to these, and gel-like ones or granular ones can be appropriately adopted as long as they can be taken out from the mouth portion 12.

The lid portion 16 is provided so as to close the mouth portion 12. The lid portion 16 has a cap shape and has a plate-shaped portion facing the opening of the mouth portion 12 and an outer peripheral wall portion hanging from the peripheral edge of the plate-shaped portion. On the inner surface of the outer peripheral wall portion of the lid portion 16, for example, an engaged portion that is engaged with the spiral groove portion provided on the outer peripheral portion of the mouth portion 12 is provided.

The label 20 has one end 21 and the other end 22 in the axial direction (DR1 direction). The axial direction is a direction parallel to the height direction of the container body 11 described above. The label 20 has a cylindrical shape and covers the container 10. The label 20 has a bag-like shape with one end 21 side closed in the axial direction. The label 20 is provided so as to cover the container body 11 in the circumferential direction and cover the lid portion 16 of the container body 11.

More specifically, the label 20 of the portion located on the other end 22 side includes a portion to be mounted in contact with the container 10, and the label 20 of the portion located on the one end 21 side is between the container 10 and the label 20. The container is covered so that the void S (see FIG. 5) is formed.

The label 20 includes a portion corresponding to the shape of the body portion 15 of the container 10. The label 20 has a small peripheral length in the vertical direction (both in the axial direction) with respect to the portion having the maximum peripheral length corresponding to the portion having the maximum peripheral length of the body portion 15 and the portion having the maximum peripheral length. Includes the part that becomes. When these come into contact with the body portion 15, the label 20 is attached to the body portion 15. The label 20 is held by the body portion 15 due to its elasticity as described later.

The one end 21 of the label 20 corresponds to the one end 31 (see FIG. 5) of the film base material 30 described later, and the other end 22 of the label 20 corresponds to the other end 32 of the film base material 30 described later (see FIG. 5). It corresponds to.

The label 20 is provided with a break line 23. The break line 23 is a perforation or a half cut consisting of intermittent cuts, and is provided along the circumferential direction of the label 20. By pulling the end 21 side of the label 20, the label 20 can be separated along the break line 23. As a result, the label 20 of the portion located on the one end 21 side can be separated while the label 20 of the portion located on the other end 22 side is in close contact with the body portion 15.

As shown in FIGS. 2 to 4, the label 20 is provided on the tubular film base material 30 having one end 31 and the other end 32 and on one end 31 side of the film base material 30 in the axial direction (DR1 direction). Includes the joint 40.

As shown in FIG. 2, the film base material 30 has an inner surface 30b and an outer surface 30a facing each other in the thickness direction. Further, the film base material 30 has a first end portion 33 and a second end portion 34 in the circumferential direction around the axis. The film base material 30 has a tubular shape by joining the portion of the film base material 30 located on the first end portion 33 side and the portion located on the second end portion 34 side.

Specifically, the inner surface 30b of the portion located on the first end 33 side and the inner surface 30b of the portion located on the second end 34 side are joined. The bonding mode between the first end 33 side and the second end 34 side of the film base material 30 is not limited to the above. For example, the inner surface 30b of the portion located on the first end 33 side and the outer surface 30a of the portion located on the second end 34 side may be joined in a superposed state. Further, the outer surface 30a of the portion located on the first end portion 33 side and the inner surface 30b of the portion located on the second end portion 34 side may be joined in a state of being overlapped with each other. The bonding can be formed by a heat seal or a fusing seal that heat-seals the film surfaces, or an adhesive seal that is bonded to the bonding surface via an adhesive. As the adhesive, a two-component curable urethane-based adhesive or the like can be used. In addition, a corona treatment, an anchor treatment, or the like may be applied to the film surface in order to improve the adhesiveness.

The print layer may be formed on the outer surface 30a of the film base material 30 or may be provided on the inner surface 30b of the film base material 30. When the print layer is provided on the inner surface 30b, the portion where the portion located on the first end portion 33 side and the portion located on the second end portion 34 side are joined and the print layer is provided on the joint portion 40. Is preferably not formed. The print layer can be formed by gravure printing, flexographic printing, or the like.

The film base material 30 is made of a self-stretchable film. The self-stretchable film is not particularly limited, but is a general term for films having "stretchability" and "restorability". "Stretchability" means the property and ease of stretching of a self-stretchable film. Further, "stability" means the property of contracting (returning to the original) by the elastic force when the external force is released after the self-stretchable film is stretched. "Stretchability" and "restorability" are collectively referred to as "stretchability", and unlike a heat-shrinkable film, a self-stretchable film can shrink regardless of heat.

It is preferable that the film substrate can be stretched by at least 60% or more in the circumferential direction, and the instantaneous strain (50 mm / min) after stretching by 60% in the circumferential direction is 13% or less.

The self-stretchability was evaluated as follows. A rectangular sample piece having a length of 15 ± 0.1 mm in the height direction and a length of 200 mm in the circumferential direction (distance between marked lines 100 ± 2 mm) was prepared from a tubular self-stretchable film. A 60% tensile test was performed with the long side direction (circumferential direction of the tubular stretch label) of this sample piece as the measurement direction, and the instantaneous strain (%) was measured. The 60% tensile test is a crosshead speed constant type or pendulum type tensile tester (test speed: 50 ± 5 mm / min), and a predetermined load (N) is applied to reduce the distance between the marked lines of the sample piece. In this test, the distance was extended to 60%, and the distance between the marked lines when the load was removed and returned to 0 (N) after the test was read, and the instantaneous strain (%) was calculated by the following formula.

Instantaneous distortion (%) = 100 × ΔL2 / L2
L2: Distance between marked lines of sample pieces before test (mm)
ΔL2: Increase in distance between marked lines of sample pieces after test (mm)
As such a self-stretchable film, for example, a film made of an olefin resin such as polyethylene and a thermoplastic resin such as an ethylene-vinyl acetate copolymer can be adopted. More specifically, as the self-stretchable film, low-density polyethylene (for example, density 0.91 to 0.93 g / cm ³ ), linear low-density polyethylene (for example, density 0.88 to 0.90 g / cm ³ ). , A single-layer or multi-layer film having a thickness of 10 μm to 100 μm and made of a thermoplastic resin such as an ethylene-vinyl acetate copolymer can be adopted.

As shown in FIGS. 3 to 5, the joint portion 40 is provided along the crossing direction intersecting the axial direction at one end 31 side of the film base material 30 so that the flow path 50 through which the gas can flow is formed. The inner surface 30b of the film base material 30 is partially bonded. The bonding is performed by pressing with a heat seal bar heated to, for example, about 110 ° C. to 180 ° C. and heat-sealing.

For example, a plurality of flow paths 50 are provided at intervals along the crossing direction. Specifically, although three flow paths 50 are provided, the number of flow paths 50 is not particularly limited. The number of flow paths 50 may be one, two, or four or more.

The void S and the outside of the label 20 communicate with each other through the flow path 50. The joint portion 40 includes a first end portion 40a located on one side in the axial direction and a second end portion 40b located on the other side in the axial direction. The flow path is provided so as to extend from the second end portion 40b of the joint portion 40 toward the first end portion 40a. The flow path 50 may be provided in a straight line, or may be formed in a meandering manner such as an S-shape or a crank shape.

The area of the flow path 50 is smaller than the area of the joint portion 40 when viewed from the directions orthogonal to the axial direction and the intersection direction. That is, the total area of the inner surface 30b of the film base material 30 in the portion defining the flow path 50 is smaller than the total area of the inner surface 30b of the film base material 30 in the portion joined by the joining portion 40. The total area of the flow path 50 is 5% to 30%, preferably 5% to 20% of the total area of the joint portion 40. If the area of the flow path 50 is large, foreign matter easily enters from the flow path 50, and the flow path 50 is conspicuous, which is not preferable in terms of appearance. The width of the flow path 50 is, for example, about 1 mm to 10 mm, preferably about 2 mm to 4 mm, and the length of the flow path 50 (length in the axial direction, length in the axial direction of the joint portion 40) is, for example, 0.5 mm to 10 mm. The degree is preferably about 1 mm to 5 mm, and as will be described later, when the film substrate is turned inside out and the joint portion is inside the label, it is preferably about 0.5 mm to 3 mm.

In the axial direction, a non-bonding region R1 in which the inner surface 30b of the film base material 30 is not bonded is provided between one end 31 of the film base material 30 and the bonding portion 40 around the axis surrounding the axial direction. ing.

Since the non-joining region R1 is provided, foreign matter such as dust can be captured in the non-joining region R1. As a result, it is possible to prevent foreign matter from entering the inside of the label 20 from the flow path 50. The length (length in the axial direction) of the non-bonded region R1 is, for example, about 2 mm to 5 mm. The non-bonded region R1 can be omitted.

FIG. 6 is a flow chart showing a manufacturing flow of a labeled container according to the first embodiment. 7 to 13 show a predetermined step and a post-state of the predetermined step in the manufacturing process of the labeled container. A method for manufacturing a labeled container according to the first embodiment will be described with reference to FIGS. 6 to 13.

As shown in FIG. 6, the method for manufacturing the labeled container 100 according to the first embodiment includes a step S10 for preparing the label 20 and a step S20 for covering the container 10 with the label 20.

When manufacturing the labeled container 100, first, in the step S10 for preparing the label 20, a tubular film base material 30 having one end 31 and the other end 32 in the axial direction and a flow path 50 through which gas can flow are formed. A label 20 including a joint portion 40 for partially joining the inner surface 30b of the film base material 30 along the crossing direction intersecting the axial direction at one end 31 side is prepared.

At this time, it is preferable to prepare the label 20 in which the area of the flow path 50 is smaller than the area of the joint portion 40 when viewed from the axial direction and the direction orthogonal to the crossing direction. Further, labels 20 may be prepared in which a plurality of labels 20 are provided at intervals along the crossing direction. Further, in the axial direction, a non-bonding region R1 in which the inner surface 30b of the film base material 30 is not bonded is provided between one end 31 of the film base material 30 and the bonding portion 40 around the axis surrounding the axial direction. You may prepare a label.

Specifically, the step S10 for preparing the label 20 includes a step S11 for preparing a long body, a step S12 for joining the long body, and a step S13 for cutting the long body.

FIG. 7 is a plan view showing a step of preparing a long body in the manufacturing process of the labeled container according to the first embodiment. As shown in FIG. 7, in the step S11 for preparing the elongated body, the elongated body 60 in which the tubular film base material is continuously extended along the direction parallel to the axial direction is prepared.

The elongated body 60 has one side end portion 63 corresponding to the first end portion 33 of the film base material 30 and the other side end portion 64 corresponding to the second end portion 34 of the film base material 30 around the axis. .. The portion located at the one side end portion 63 and the portion located at the other side end portion 64 are joined by a portion shown by dodd-shaped hatching in FIG. 7. As a result, the long body 60 has a tubular shape. The elongated body 60 has a downstream end portion 60d on the downstream side in a direction parallel to the axial direction. The downstream side is one side in a direction parallel to the axial direction.

FIG. 8 is a schematic cross-sectional view showing a step of joining long bodies in the manufacturing process of the labeled container according to the first embodiment. FIG. 9 is a plan view showing a post-state of the step of joining long bodies in the manufacturing process of the labeled container according to the first embodiment.

Next, in the step S12 for joining the long bodies, the long body 60 is placed at a position separated by a predetermined distance from the downstream end portion 60d to the upstream side so that the flow path 50 and the joining portion 40 are formed. The inner surface 60b to be provided is partially joined along the crossing direction. The upstream side is the other side in the direction parallel to the axial direction.

Specifically, as shown in FIG. 8, the long body 60 is sandwiched by the pair of

heating members

71 and 72 along the crossing direction.

The pair of

heating members

71 and 72 are provided so as to extend along the crossing direction. The pair of

heating members

71 and 72 are provided with

cutouts

73 and 74 at positions corresponding to the flow path 50. It is difficult for heat to be conducted to the portions where the

notches

73 and 74 are provided.

Therefore, when the long body 60 is sandwiched between the pair of

heating members

71 and 72, the portion where the pair of

heating members

71 and 72 come into contact with the long body 60 is heat-welded. On the other hand, the positions corresponding to the

notches

73 and 74 are in a state of not being heat welded. As a result, as shown in FIG. 9, a joint portion 40 for partially joining the inner surface 60b of the elongated body 60 and a flow path 50 are formed.

At this time, it is preferable to form the break line 23 at the same time as the joint portion 40 and the flow path 50 are formed. That is, in the step of joining the long bodies, it is preferable to partially join the inner surface 60b of the long body 60 so that the flow path 50 is formed, and to form the breaking line 23. As a result, it is possible to omit a separate step of providing the break line 23, and the manufacturing process can be simplified.

In the above description, the case where the joint portion 40 and the flow path 50 are formed by using the pair of

heating members

71 and 72 has been described as an example, but the present invention is not limited to this. The joint portion 40 and the flow path 50 may be formed by partially heat-welding the inner surface 60b of the long body 60 using an ultrasonic terminal.

FIG. 10 is a plan view showing a step of cutting a long body in the manufacturing process of the labeled container according to the first embodiment.

Next, in the step S13 for cutting the long body 60, as shown in FIG. 10, the long body 60 is cut in the crossing direction on the upstream side of the joint portion 40. Specifically, the elongated body 60 is cut along the cutting line CL extending along the crossing direction on the upstream side of the joint portion 40.

As a result, a tubular film base in which a non-bonded region R1 in which the inner surface of the elongated body 60 is not bonded is formed around the axis surrounding the axial direction between the bonded portion 40 and the cutting line CL. The material 30 is cut out. At this time, the peripheral length of the tubular film base material 30 is smaller than the maximum peripheral length of the container 10. For example, the peripheral length of the tubular film base material 30 is 3% to 40% smaller, preferably 15% to 30% smaller than the maximum peripheral length of the container 10.

Next, the step S20 of covering the container 10 with the label 20 is carried out. In step S20, the label 20 of the portion located on the other end 32 side of the film base material 30 includes a portion that adheres to the outer surface of the container 10 along the circumferential direction, and one end 31 side of the film base material 30. The container 10 is covered with the label 20 so that a gap communicating with the outside of the label 20 is formed between the label 20 and the container 10 in the portion located in the above.

Specifically, the step S20 includes a step S21 for expanding the opening 32a provided on the other end 32 side of the film base material 30, and a step S22 for relatively inserting the container 10 into the expanded opening 32a. Have.

FIG. 11 is a schematic view showing a step of widening the opening provided in the film base material 30 in the manufacturing process of the labeled container according to the first embodiment.

In carrying out the step S20, in the step S21, as shown in FIG. 11, first, the opening 32a is widened so that the tip side (the lid portion 16 side) of the container 10 can be inserted. In the initial state in which the opening 32a is widened, as described above, the opening width of the opening 32a provided at the other end 32 of the film base material 30 is smaller than the portion of the container 10 having the largest peripheral length. The opening 32a is widened while maintaining. That is, in the initial state, the state in which the opening width L2 is smaller than the width L1 of the portion of the container 10 having the largest peripheral length is maintained. As will be described later, in the middle of inserting the container 10 relatively, the opening 32a is made into the maximum peripheral length portion of the container 10 so that the maximum peripheral length portion of the body portion 15 can pass through the film base material 30. Correspond and spread. When the opening 32a is widened, a plurality of claw-shaped jigs or the like (not shown) arranged in the circumferential direction for widening from the inside are inserted into the opening 32a to move the jig. Therefore, the opening 32a is widened so that the jig and the container do not interfere with each other.

FIG. 12 is a schematic view showing a step of relatively inserting the container into the opening in the manufacturing process of the labeled container according to the first embodiment.

Subsequently, in step S22, the container 10 is relatively inserted into the opening 32a. As shown in FIG. 12, in the middle stage of relatively inserting the container 10, the container 10 is relatively inserted into the opening 32a while sliding the outer surface of the container 10 on the inner peripheral surface of the label 20. .. Specifically, the container 10 is inserted inside the film base material 30 while extending the film base material 30 in the circumferential direction so that the maximum peripheral length portion of the body portion 15 can pass through the opening 32a. By this operation, while the opening 32a side is widened, on the upper side of the opening 32a, the portion that comes into contact with the outer surface of the container 10 due to the self-stretchability of the film base material 30 is formed according to the peripheral length of the container 10. The container 10 can be inserted while extending in the circumferential direction. By sliding the outer surface of the container 10 on the inner peripheral surface of the label 20 in this way, the gas existing between the container 10 and the label 20 at the portion inserted in the label 20 is an arrow in FIG. As shown in the above, the gas is discharged from the flow path 50 to the outside of the label 20. That is, in the above step S22, the container 10 is placed in the label 20 while the gas existing between the container 10 and the label 20 in the portion inserted in the label 20 is discharged from the flow path 50 to the outside of the label 20. Insert relatively.

Thereby, it is possible to suppress the accumulation of air between the container 10 and the label 20 in the portion inserted in the label 20.

FIG. 13 is a diagram showing a post-state of the step of relatively inserting the container into the opening in the manufacturing process of the labeled container according to the first embodiment.

Further, by relatively inserting the container 10 into the label 20, the container 10 can be covered with the label 20 as shown in FIG. By going through the steps as described above, the labeled container 100 according to the first embodiment can be manufactured.

The step S20 of covering the container 10 with the label 20 may further include a step of turning over the film base material 30. In this case, in the step S22 for relatively inserting the container 10, the container 10 is relatively inserted into the film base material 30 turned inside out.

In this case, the film base material 30 is turned inside out, so that the joint portion 40 is located inside the label 20. Therefore, the joint portion 40 can be made inconspicuous in appearance.

As described above, in the method for manufacturing the labeled container 100 according to the first embodiment, the label is provided so as to intersect in the crossing direction and extend toward one end 31 side of the film base material 30. When 20 is prepared and the container 10 is covered with the label 20, the label 20 of the portion located on the other end 32 side of the film base material 30 includes a portion that adheres to the outer surface of the container 10 along the circumferential direction. In addition, the container 10 is provided so that a gap communicating with the outside of the label 20 via the flow path 50 is formed between the label 20 and the container 10 at the portion located on the one end 31 side of the film base material 30. Cover with label 20.

Therefore, when the container 10 is covered with the label 20, the gas existing between the container 10 and the label 20 in the portion inserted in the label 20 can be discharged from the flow path 50 to the outside of the label 20. ..

Thereby, in the labeled container 100 manufactured based on the above manufacturing method, it is possible to suppress the amount of air accumulated between the label 20 and the container 10 from varying in each manufacturing. As a result, it is possible to suppress the change in the shape of the label 20 due to the variation in the amount of air, and by extension, the appearance of the labeled container 100 can be stabilized.

Further, by forming the flow path 50 as described above, the film base material 30 penetrates from the outer surface 30a to the inner surface 30b in order to discharge the air trapped between the label 20 and the container 10. It is not necessary to form a hole to be formed. As a result, the cosmeticity of the label 20 can be maintained.

Further, as described above, by making the area of the flow path 50 smaller than the area of the joint portion 40, it is possible to prevent the portion where the flow path 50 is formed from swelling significantly and to make the flow path 50 inconspicuous. Can be done. This also makes it possible to stabilize the appearance of the labeled container 100 and maintain the cosmeticity of the label 20.

Further, by providing a plurality of flow paths 50 at intervals along the crossing direction, the area per flow path 50 can be reduced. As a result, the flow path 50 can be made less noticeable.

(Embodiment 2)
FIG. 14 is a cross-sectional view of a label of a portion where a joint portion is formed in the labeled container according to the second embodiment. The labeled container according to the second embodiment will be described with reference to FIG.

As shown in FIG. 14, the labeled container according to the second embodiment has a different configuration of the label 20A as compared with the labeled container 100 according to the first embodiment. The other configurations are almost the same.

Specifically, in the label 20A according to the second embodiment, the print layer 80 is formed on the inner surface 30b of the film base material 30 in the portion where the flow path 50 is provided. The melting point of the printed layer 80 is higher than the melting point of the film substrate 30.

The labeled container according to the second embodiment is basically manufactured according to the manufacturing method of the labeled container 100 according to the first embodiment, but is a pair of heating used in the step of joining the elongated bodies. The

members

71 and 72 are different.

FIG. 15 is a schematic cross-sectional view showing a step of joining long bodies in the manufacturing process of the labeled container according to the second embodiment.

As shown in FIG. 15, the pair of

heating members

71 and 72 are not provided with the notch portion as in the first embodiment, and the contact surface where the pair of

heating members

71 and 72 come into contact with the film base material 30. Is almost flat.

As described above, the melting point of the printing layer 80 is higher than the melting point of the film substrate 30. Therefore, even when the film base material 30 is sandwiched between the pair of

heating members

71 and 72, the inner surfaces 30b of the film base material 30 in the portion where the print layer 80 is provided are heat-welded to each other. Can be prevented.

Even in the above cases, the labeled container 100 and the manufacturing method thereof according to the second embodiment have almost the same effects as those of the first embodiment. Further, by using the above-mentioned print layer 80 as a design, the design of the labeled container 100 can be improved.

(Embodiment 3)
FIG. 16 is an enlarged schematic view showing one end side of the labeled container according to the third embodiment. The labeled container according to the third embodiment will be described with reference to FIG.

As shown in FIG. 16, the labeled container according to the third embodiment has a different shape of the flow path 50 in the label 20B as compared with the labeled container according to the first embodiment. The flow path 50 is formed so that the area becomes smaller toward one end 31 side of the film base material 30. That is, the flow path 50 is formed so that the area decreases from the second end portion 40b of the joint portion 40 in the axial direction toward the first end portion 40a.

The labeled container according to the third embodiment is basically manufactured according to the manufacturing method of the labeled container 100 according to the first embodiment, but in the step of joining the elongated bodies, the flow path The inner surface 60b of the elongated body 60 is partially joined so that the area of 50 becomes smaller toward the first end 40a from the second end 40b of the joining portion 40 in the axial direction. By forming the flow path 50 in this way, in the step of covering the container 10 with the label 20B, the gas existing between the container 10 and the label 20 in the portion inserted in the label 20 can be easily removed from the flow path 50. Can be discharged to.

As mentioned above, the embodiments disclosed this time are examples in all respects and are not restrictive. The scope of the present invention is indicated by the scope of claims and includes all modifications within the meaning and scope equivalent to the scope of claims.

10 container, 11 container body, 11a one end, 11b other end, 12 mouth part, 13 neck part, 14 shoulder part, 15 body part, 16 lid part, 20, 20A label, 21 one end, 22 other end, 23 break line, 30 film substrate, 30a outer surface, 30b inner surface, 31 one end, 32 other end, 32a opening, 33 first end, 34 second end, 40 joint, 40a first end, 40b second end Part, 50 flow path, 60 long body, 60b inner surface, 60d downstream side end, 63 one side end, 64 other side end, 71 heating member, 73,74 notch, 80 printing layer, 100 with label container.

Claims

A cylindrical film substrate having one end and the other end in the axial direction and an intersection that intersects the inner surface of the film substrate in the axial direction on the one end side so as to form a flow path through which gas can flow. The process of preparing a label, including a joint that is partially joined along the direction, and
The step of covering the container with the label is provided.
A self-stretchable film was used as the film base material, and
In the step of covering the container with the label, the label of the portion located on the other end side of the film substrate includes a portion to be attached in contact with the container, and the film substrate is said to have the same label. A labeled container in which the container is covered with the label so that a gap communicating with the outside of the label via the flow path is formed between the label and the container in a portion located on one end side. Manufacturing method.
The step of preparing the label is a step of preparing a long body in which the tubular film substrate continuously extends along a direction parallel to the axial direction, and a step of joining the long body in the crossing direction. Including a step and a step of cutting the long body,
As the long body, a body including a downstream end located on the downstream side in a direction parallel to the axial direction is used.
In the step of joining the long body, the inner surface of the long body is formed at a position separated from the downstream end portion by a predetermined distance from the downstream end portion so that the flow path and the joint portion are formed. The method for manufacturing a labeled container according to claim 1, wherein is partially joined along the crossing direction.
In the step of joining the long body, the long body is such that the area of the flow path is smaller than the area of the joint when viewed from the directions orthogonal to the axial direction and the crossing direction. The method for manufacturing a labeled container according to claim 2, wherein the inner surface of the container is partially joined.
Claimed to partially join the inner surface of the long body so that a plurality of the flow paths are provided at intervals along the crossing direction in the step of joining the long body. The method for manufacturing a labeled container according to 2 or 3.
In the step of cutting the long body, the long body is cut in the crossing direction on the upstream side of the joint portion, and the inner surface of the long body is joined on the upstream side of the joint portion. The method for producing a labeled container according to any one of claims 2 to 4, wherein a non-bonded region is formed.
The step of covering the container with the label includes a step of widening the opening provided on the other end side of the film substrate and a step of relatively inserting the container into the widened opening. ,
In any one of claims 1 to 5, in the step of relatively inserting the container, the container is relatively inserted while sliding the outer surface of the container to the inner peripheral surface of the label. How to make the labeled container described.
In the step of relatively inserting the container, the container is relatively inserted while discharging the gas existing between the container and the label in the portion inserted in the label from the flow path to the outside of the label. The method for manufacturing a labeled container according to claim 6, wherein the container is inserted into a container.
The step of coating the container with the label further comprises the step of turning over the film substrate.
The method for producing a labeled container according to claim 6 or 7, wherein in the step of relatively inserting the container, the container is relatively inserted into the film substrate turned inside out.
The inner surface of the film substrate intersects the axial direction on the one end side so that a tubular film substrate having one end and the other end in the axial direction and a flow path through which gas can flow are formed. Labels, including joints that are partially joined along the crossing direction,
With a container coated with the label,
The film base material is composed of a self-stretchable film.
The label of the portion of the film substrate located on the other end side includes a portion to be attached in contact with the container.
The label on the portion of the film substrate located on one end side covers the container so that a gap is formed between the label and the film substrate.
A labeled container in which the void and the outside of the label communicate with each other through the flow path.