Shrink label mounting container

Abstract

To provide a shrink label mounting container capable of surely and properly mounting a cylindrical shrink label to a body part even when the body part has a maximum outer diameter part.SOLUTION: In the shrink label mounting container of the present invention, a mouth 2 is erected via a shoulder 3 at the upper end of a body 4 connected to the top of a bottom 5, and a cylindrical shrink label is attached to the outer surface of the body 4. The body is configured to have a maximum outer diameter portion 4B in the middle of the body 4, and a matte finish portion 7 consisting of fine convexoconcave is formed on the outer surface of the maximum outer diameter portion 4B.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a shrink-labeled container. [Background technology]

[0002] Shrink-label-attached containers are known in which a film-like shrink label printed with display information or a decorative pattern is opened at the front and back to form a tubular shape for the purpose of displaying the product name or decorating the bottle container, and this tubular shrink label is then placed over the body of the bottle to form an exterior, and the container is then heat-shrunk in this state (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-167157 A Summary of the Invention [Problem to be solved by the invention]

[0004] If the shape of the bottle body of a shrink-labeled container is straight, i.e., the area from the shoulder to the bottom of the container is cylindrical with a constant diameter or polygonal tubular with a constant width, it is possible to easily cover and exteriorize the bottle with a tubular shrink label.

[0005] However, if the bottle on the container side is configured in a shape with a maximum outer diameter partway through the body, such as a roughly flask-shape with the body near the bottom bulging radially outward, or a roughly gourd-shape with a narrowed part in the bottle body, there is a problem that when a tubular shrink label is applied to cover and exteriorize the bottle, it will get caught on the maximum outer diameter part, resulting in the shrink label not being able to be properly attached to the body.

[0006] In particular, when a long, tubular guide shaft is passed inside a shrink label that has been opened back and forth and deformed into an approximately cylindrical shape in a plan view, and the shrink label is moved along this guide shaft to supply it to a container, the shrink label tends to deform in the closing direction as it comes out from the lower end of the guide shaft and moves to the container side and is placed over the body of the container to be wrapped around it, making it prone to getting caught on the maximum outer diameter part of the body.

[0007] In order to solve the problems in the conventional technology described above, an object of the present invention is to create a shrink-label-attached container that can reliably and properly attach a tubular shrink label to a body portion, even when the body portion has a maximum outer diameter. [Means for solving the problem]

[0008] Among the means for solving the above problems, the main means of the present invention is: A shrink-label-attached container having a body connected to an upper portion of a bottom portion and a mouth portion extending upward through a shoulder portion, and a cylindrical shrink label attached to an outer surface of the body portion, The body portion is configured to have a maximum outer diameter portion, and a matte finish portion consisting of a plurality of minute projections and recesses is formed on the outer surface of the maximum outer diameter portion. The main feature of the present invention is that when the shrink label is placed over the body portion to form an exterior package, the shrink label is prevented from getting caught on the maximum outer diameter portion of the body portion, allowing for smooth attachment.

[0009] Another aspect of the present invention is to add to the above-mentioned main aspect that the matte finish portion is formed to have an arithmetic mean roughness of 0.58 mm or more. In the above-mentioned means, the irregularities constituting the matte finish portion can be set to a suitable size. Effect of the Invention

[0010] In the present invention, a tubular shrink label can be reliably and appropriately attached to a body portion having a maximum outer diameter. [Brief description of the drawings]

[0011] [Figure 1] 1 is a front view of a shrink-label-attached container showing a first embodiment of the present invention. FIG. [Diagram 2] The diagram shows an outline of the process for attaching a shrink label to a container, with A indicating the cutting process, B indicating the supplying process, C indicating the packaging process, and D indicating the heat shrinking process. [Diagram 3] FIG. 11 is a front view of a shrink-labeled container showing a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a shrink-labeled container showing a first embodiment of the present invention. In the following, the direction along the container axis O will be referred to as the axial direction, the up-down direction or the height direction, the direction perpendicular to the container axis O will be referred to as the radial direction, and the direction circumferentially around the container axis O will be referred to as the circumferential direction.

[0013] As shown in Fig. 1, a shrink-labeled container 1 (hereinafter referred to as container 1) is integrally formed from a synthetic resin such as polyethylene terephthalate (PET), PP, or PE, and is a bottomed cylindrical bottle container in which a body 4 having a circular shape in plan view is connected to a bottom 5 provided at the bottommost part and having a seal part 6, and a cylindrical mouth part 2 is provided upright on a stepped shoulder part 3 provided at the upper end of the body 4. In this embodiment, PET is used, and the container 1 is formed by stretch blow molding of a preform formed by injection molding. Note that the container 1 may also be formed by extrusion blow molding, in which case a seal part 6 is formed in the center of the bottom part 5 by pinching off at the same time as blow molding the parison.

[0014] The mouth portion 2 has an outer peripheral surface formed with a male thread 2a for mounting a lid portion (not shown).

[0015] The container 1 shown in the first embodiment has a body 4 which is configured to have an expanded diameter section 4A which expands in diameter downward from the mouth 2, a maximum outer diameter section 4B which has the largest diameter and is formed in a horizontal band shape at the lower end of the expanded diameter section 4A, and a reduced diameter section 4C which gradually reduces in diameter from the lower end of the maximum outer diameter section 4B towards the bottom 5. The entire body 4 including the expanded diameter section 4A, maximum outer diameter section 4B and reduced diameter section 4C is set as an attachment area 4a which allows the attachment of a shrink label.

[0016] Furthermore, a matte finish portion 7 consisting of fine irregularities is formed on the outer surface of the horizontal band-shaped maximum outer diameter portion 4B. The matte finish portion 7 can be formed by various conventionally known means, for example, by transferring a fine matte finish pattern formed on the inner surface of a mold used to mold the container 1. The matte finish pattern can be formed on the inner surface of the mold by microblasting (sandblasting).

[0017] Such a matte finish portion 7 has a large number of protrusions and recesses mixed therein, and as shown in Table 1, if the arithmetic mean roughness Ra of the outer surface is less than 0.58 mm, the shrink label SL described below will easily get caught when it is placed over the body portion 4 as an exterior covering. For this reason, Ra is preferably 0.58 mm or more.

[0018] [Table 1]

[0019] FIG. 2 shows an outline of the process for attaching a shrink label to a container, where A indicates the cutting process, B indicates the supplying process, C indicates the packaging process, and D indicates the heat shrinking process. The shrink label SL is formed of a laminated film that has a base film such as a heat-shrinkable polyester film, polystyrene film, or polyolefin film, and is laminated with a printed layer on which display information, decorative patterns, etc. are printed. In this embodiment, a stretched polystyrene film (OPS) is used. The shrink label SL formed into a cylindrical shape is folded into a flat shape and wound into a roll (not shown), and the shrink label SL pulled out from the roll is cut to a specified length (see FIG. 2A).

[0020] Next, the cut shrink label SL is opened radially outward and deformed into a cylindrical shape, and is fitted around a long, tubular guide shaft 20 called a former, and is supplied to the container 1 using this guide shaft 20 (see Figure 2B). The cylindrical shrink label SL is dropped from the lower end 21 of the guide shaft 20 toward the mouth 2 of the container 1 located below it, and is placed over the outer surface of the body 4 of the container 1 to be exteriorly attached (see Figure 2C).

[0021] At this time, the shrink label SL that has come out from the lower end 21 of the guide shaft 20 attempts to close radially inward and restore to its original planar shape before reaching the body 4 of the container 1, so that the inner surface of the shrink label SL comes into contact with the maximum outer diameter portion 4B. However, the shrink label SL moves downward while its inner circumferential surface slides only on some of the many protrusions that make up the matte finish portion 7, making it possible to prevent the conventional problem of the shrink label SL getting caught between these protrusions. In other words, the shrink label SL can be reliably wrapped around the outer circumferential surface of the body 4 without getting caught on the maximum outer diameter portion 4B of the body 4.

[0022] After packaging, the shrink label SL is heat-shrunk from the outside by heating with a heater (not shown) or by applying hot air, so that the shrink label SL is attached to the outer periphery of the body portion 4 in the appropriate position (see FIG. 4D).

[0023] FIG. 3 is a front view of a shrink-labeled container showing a second embodiment of the present invention. The container 1 shown in the second embodiment has a maximum outer diameter portion 4B, on which a matte finish portion 7 is formed, formed in a roughly flask-like shape and located closer to the bottom 5 than the container 1 described above, and the proportion of the reduced diameter portion 4C to the entire body portion 4 is small; the other configurations and effects are the same as those of the first embodiment described above. Even with such a generally flask-shaped container 1, it is possible to reliably and appropriately attach the shrink label SL to the body portion 4 in the same manner as in the first embodiment described above.

[0024] Although the configuration and the effects of the present invention have been described above based on the embodiments, the present invention is not limited to the above embodiments. For example, in the above embodiment, a container 1 was shown and described in which the maximum outer diameter portion 4B with the matte finish portion 7 is provided at one height position of the body 4, but the maximum outer diameter portion 4B with the matte finish portion 7 may be formed at multiple height positions, such as two height positions (approximately gourd-shaped) or three height positions of the body 4.

[0025] In addition, the maximum outer diameter portion 4B having the matte finish portion 7 is provided at a lower position of the body portion 4 and has a generally flask-like shape. However, the maximum outer diameter portion 4B may be provided at an upper position of the body portion 4 and have an inverted flask-like shape.

[0026] Furthermore, although the case where the body portion 4 has a circular shape in a plan view has been shown and described, the body portion 4 may have a polygonal shape in a plan view. [Industrial Applicability]

[0027] The present invention can expand the range of applications in the field of containers in which a shrink label is attached to the body thereof to an even wider range. [Explanation of symbols]

[0028] 1: Container (container with shrink label) 2: Mouth 2a: Male thread 3:Shoulder 4: Torso 4A: Enlarged diameter section 4B: Maximum outer diameter 4C: Reduced diameter part 4a: Mountable area 5: Bottom 6: Seal part 7: Pear-textured part 20: Guide shaft 21: Bottom edge O: Container axis SL: Shrink label

Claims

1. A shrink-label-attached container has a body (4) connected to the top of a bottom (5), a mouth (2) standing on the upper end of the body (4) via a shoulder (3), and a tubular shrink label attached to the outer surface of the body (4), The shrink-label-fitted container is configured to have a maximum outer diameter portion (4B) midway through the body portion (4), and is characterized in that a matte finish portion (7) consisting of fine projections and recesses is formed on the outer surface of the maximum outer diameter portion (4B).

2. 2. A shrink-labeled container according to claim 1, wherein the matte finish portion (7) has an arithmetic mean roughness (Ra) of 0.58 mm or more.

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