container
The container's non-flat surface design with recesses or protrusions simplifies label peeling, addressing the challenge of label removal during recycling and enhancing recyclability and aesthetics.
Patent Information
- Application Number
- JP2023142869
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2023-09-04
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2043-09-04
AI Technical Summary
The difficulty in removing labels from containers increases the workload during recycling, as they are often difficult to peel off, affecting both users and businesses.
A container design featuring a non-flat surface portion with recesses or protrusions at the label attachment area, which reduces adhesive strength and facilitates easy peeling.
The design enhances the ease of label removal, improving recyclability and maintaining aesthetic appeal while ensuring adequate adhesive strength.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a container. [Background technology]
[0002] In recent years, containers with labels attached have become widely available. For example, the product name and description are written on the labels. There are a wide variety of containers with such labels attached, including the packaging container disclosed in Patent Document 1. Furthermore, from the viewpoint of environmental protection, container recycling technology has also been attracting attention. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 3089558 Summary of the Invention [Problem to be solved by the invention]
[0004] However, when recycling containers, the labels must be removed from the containers, and if the labels are difficult to remove from the containers, the workload for users or businesses that collect the containers increases.
[0005] The present invention relates to a container that improves the ease of peeling off a label. [Means for solving the problem]
[0006] In order to solve the above problem, one aspect of the present invention relates to a container formed by blow molding that can hold contents, has a surface portion including an attachment area where a label is to be attached, and has a non-flat portion on part of the surface portion where a recess or protrusion is formed. [Effects of the Invention]
[0007] As described above, the container of the present invention improves the ease of peeling off the label. [Brief explanation of the drawings]
[0008] [Figure 1] 1 is an explanatory diagram showing the appearance of a container 1 according to a first embodiment of the present invention. [Figure 2] FIG. 2 is an explanatory diagram showing the container 1 without a label 40 attached thereto. [Figure 3] FIG. 4 is an explanatory view showing the appearance of a container 2 according to a second embodiment of the present invention. [Figure 4] FIG. 2 is an explanatory diagram showing the container 2 without a label 40 attached thereto. [Figure 5] FIG. 2 is an explanatory diagram showing the container 3 without the label 40 attached. [Figure 6] FIG. 10 is an explanatory view showing the appearance of a container 4 according to a fourth embodiment of the present invention. [Figure 7] FIG. 2 is an explanatory diagram showing the container 4 without the label 44 attached. DETAILED DESCRIPTION OF THE INVENTION
[0009] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and drawings, components having substantially the same functional configurations are designated by the same reference numerals, and redundant explanations will be omitted.
[0010] DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container having a label attached thereto. Several embodiments will be described in detail below.
[0011] First Embodiment (composition) 1 is an explanatory diagram showing the appearance of a container 1 according to a first embodiment of the present invention. As shown in FIG. 1, the container 1 according to the first embodiment includes a container body 10 and a cap 20.
[0012] The container body 10 has a body 110, a bottom 120, a neck 130, and a handle 140. The body 110 has a tubular shape. The body 110 may have, for example, a generally rectangular tubular shape consisting of a front, a back, and a side as shown in FIG. 1, or may have a cylindrical shape. The bottom 120 is the part that abuts against the placing surface when the container 1 is placed on the placing surface. The bottom 120 closes an opening on one side formed by the body 110. A storage space for the contents is formed inside the body 110 and the bottom 120. The neck 130 is a tubular part that connects to the storage space.
[0013] The contents may be liquid or solid. Examples of liquids include liquids, gels, and pastes. Liquids, gels, and pastes all have fluidity, but liquids do not have a fixed shape, while gels and pastes are semi-solid and may temporarily have a fixed shape. Examples of solids include granular, granular, and powdery substances. Specifically, the contents stored in the storage space of the container body 10 may be liquid detergent, fabric softener, bleach, shampoo, rinse, conditioner, body soap, cosmetic liquid, hair dye, medicine, liquid seasoning, etc.
[0014] The handle portion 140 is connected to the body portion 110, and forms a hole between the handle portion 140 and the body portion 110. A user can easily use the container 1 by passing a finger through the hole and gripping the handle portion 140. Note that, not limited to this embodiment, the container body 10 does not necessarily have to have the handle portion 140.
[0015] Such a container body 10 can be formed from a synthetic resin, such as polyolefins such as polyethylene (PE), polypropylene (PP), and polybutene, polyesters such as polyethylene terephthalate (PET), polyamide, polyvinyl chloride, polystyrene, and polylactic acid.
[0016] The cap 20 is removably attached to the neck portion 130. For example, the inner peripheral surface of the cap 20 and the outer peripheral surface of the neck portion 130 are screwed together, thereby removably attaching the cap 20 to the neck portion 130. When the cap 20 is attached to the neck portion 130, the opening of the neck portion 130 that connects to the storage space of the container body 10 is closed, and when the cap 20 is removed from the neck portion 130, the opening of the neck portion 130 is opened.
[0017] Furthermore, the container 1 according to the first embodiment has a label 40. The label 40 is attached to the outer peripheral surface of the body 110 as shown in FIG. 1. The label 40 has a base layer on which the product name, product description, etc. are printed, and an adhesive layer that bonds the base layer to the body 110. The adhesive layer may be made of cold glue or hot melt glue. As shown in FIG. 1, a non-flat portion 31 is formed in a portion of the outer peripheral surface of the body 110 to which the label 40 is attached. The non-flat portion 31 will be described below with reference to FIG. 2.
[0018] Fig. 2 is an explanatory diagram showing the container 1 in a state where the label 40 is not attached. In Fig. 2, an attachment area 60 where the label 40 is attached is indicated by a dashed line. The attachment area 60 is a partial area of the outer peripheral surface of the body portion 110, and the outer peripheral surface of the body portion 110 is an example of a surface portion that includes the attachment area 60.
[0019] A recess or a protrusion is formed in the non-flat portion 31. When the portion of the non-flat portion 31 that protrudes most outward in the thickness direction of the body portion 110 is used as a reference, it can be said that a recess is formed in the non-flat portion 31, and when the portion of the non-flat portion 31 that is recessed most inward in the thickness direction of the body portion 110 is used as a reference, it can be said that a protrusion is formed in the non-flat portion 31. In the following, the explanation will be continued from the perspective that a recess is formed in the non-flat portion 31 as an example.
[0020] The non-flat portion 31 may have a plurality of dot-shaped recesses, a plurality of linear recesses, or a mixture of dot-shaped recesses and linear recesses. The dot-shaped recesses may be circular, angular, or have another shape when viewed from the front. The linear recesses may be linear, zigzag, or curved when viewed from the front.
[0021] The non-flat portion 31 and the attachment area 60 overlap. In the example shown in Fig. 2, the entire attachment area 60 overlaps the non-flat portion 31. The non-flat portion 31 is also formed in an area surrounding the attachment area 60, i.e., an area outside the attachment area 60 and adjacent to the attachment area 60. This area is visible even after the label 40 is attached, as shown in Fig. 1. From another perspective, the non-flat portion 31 and the attachment area 60 have similar shapes, and the similarity ratio of the non-flat portion 31 to the attachment area 60 is limited to within a certain value (for example, within 1.05).
[0022] The method for manufacturing the container body 10 having the non-flat portion 31 is not particularly limited. For example, the method for manufacturing the container body 10 includes blow molding such as injection blow molding or direct blow molding. The container body 10 having the non-flat portion 31 can be manufactured by providing irregularities in the mold used for blow molding. Alternatively, the non-flat portion 31 can be formed by subjecting the container body 10 to processing such as sanding or shot peening after molding the container body 10. Furthermore, if a separate member having irregularities is bonded to the container body 10 after molding the container body 10, the separate member becomes the non-flat portion 31.
[0023] (Action and effect) The first embodiment of the present invention described above provides a variety of advantageous effects. For example, in the container 1 according to the first embodiment of the present invention, the non-flat portion 31 is formed so as to overlap the attachment area 60. In the area where the attachment area 60 and the non-flat portion 31 overlap, the label 40 does not adhere to the recess, or the adhesion between the label 40 and the recess is weaker. As a result, the adhesive strength between the label 40 and the body 110 is weaker than when the label 40 is attached to a flat surface. This makes it easier for users of the container 1 or businesses that collect the container 1 to peel the label 40 from the body 110. In other words, the first embodiment of the present invention makes it possible to provide a container 1 with improved recyclability.
[0024] Furthermore, according to the first embodiment of the present invention, the entire attachment area 60 overlaps the non-flat portion 31. With this configuration, the label 40 can be easily peeled from the body portion 110 from any part of the outer edge of the label 40.
[0025] Furthermore, according to the first embodiment of the present invention, the non-flat portion 31 is formed only on a portion of the outer peripheral surface of the body portion 110. More specifically, the similarity ratio of the non-flat portion 31 to the attachment area 60 is limited to within a certain value. Therefore, compared to when the non-flat portion 31 is formed over a wider area, the aesthetic appeal is superior.
[0026] <Second embodiment> Next, a second embodiment of the present invention will be described. In the second embodiment of the present invention, a non-flat portion 32 is formed that overlaps only a portion of the attachment area 60. Hereinafter, the configuration of the container 2 according to the second embodiment of the present invention will be described with reference to Figs. 3 and 4.
[0027] (composition) Fig. 3 is an explanatory diagram showing the appearance of a container 2 according to a second embodiment of the present invention. Fig. 4 is an explanatory diagram showing the container 2 in a state where a label 40 is not attached. As shown in Figs. 3 and 4, in the second embodiment of the present invention, the non-flat portion 32 of the container body 12 is formed so as to overlap only the area of the attachment area 60 on the bottom 120 side of the container 2.
[0028] More specifically, the attachment area 60 has a plurality of edges along a direction intersecting the height direction of the container 2, and the plurality of edges includes an edge 67 located on the bottom 120 side of the container 2. The non-flat portion 32 is formed along the edge 67 so as to overlap the entire edge 67.
[0029] Furthermore, label 40 is formed with a marking that indicates the position of non-flat portion 32. In the example shown in Fig. 3, label 40 is formed with a marking 46 that indicates the position of non-flat portion 32, and that includes an arrow pointing to edge 47 on the bottom 120 side and text indicating that label 40 is easy to peel from edge 47 on the bottom 120 side.
[0030] (Action and effect) The second embodiment of the present invention described above provides a variety of advantageous effects. For example, according to the second embodiment of the present invention, the non-flat portion 32 is formed, overlapping only a portion of the attachment area 60. This configuration can improve the aesthetic appeal of the container 2 while ensuring the adhesiveness of the label 40. For example, the ratio of the area where the attachment area 60 and the non-flat portion 32 overlap with respect to the area of the attachment area 60 may be 5% or more, and more preferably 10% or more, from the viewpoint of ensuring the adhesive strength of the label 40. Furthermore, the ratio of the area where the attachment area 60 and the non-flat portion 32 overlap with respect to the area of the attachment area 60 may be 50% or less, and more preferably 25% or less, from the viewpoints of the aesthetic appeal of the container 2 and the ease of peeling the label 40.
[0031] Furthermore, according to the second embodiment of the present invention, the non-flat portion 32 is formed to overlap the area of the attachment area 60 on the bottom 120 side of the container 2. With this configuration, dust and contents dripping from the neck portion 130 are less likely to get between the label 40 and the body 110, so excessive weakening of the adhesive strength of the label 40 can be avoided.
[0032] Furthermore, according to the second embodiment of the present invention, the label 40 is formed with an indication 46 that indicates the position of the non-flat portion 32. With this configuration, a user or a business that collects the container 2 can easily peel off the label 40 from the edge 47 on the bottom 120 side by following the indication 46.
[0033] <Third embodiment> Next, a third embodiment of the present invention will be described. In the third embodiment of the present invention, a non-flat portion 33 is formed that overlaps less with a part of the attachment area 60. Hereinafter, the configuration of the container 3 according to the third embodiment of the present invention will be described with reference to Fig. 5.
[0034] (composition) Fig. 5 is an explanatory diagram showing the container 3 in a state where the label 40 is not attached. As shown in Fig. 5, the non-flat portion 33 of the container body 13 is formed so as to overlap a part of the edge 67 on the bottom 120 side of the attachment area 60, but not overlap other parts of the edge 67. In the example shown in Fig. 5, the non-flat portion 33 overlaps one end of the edge 67, but does not overlap the other end of the edge 67.
[0035] (Action and effect) Generally, labels are removed by peeling the edge of the label with a fingernail or the like, then holding the edge with the fingers and pulling the label off. Peeling the edge of the label is the most stressful. In this regard, according to the third embodiment of the present invention, the non-flat portion 33 overlaps one end of the edge 67, making it possible to ensure ease of peeling the label 40 from the overlapping portion while improving the aesthetic appeal of the container 3.
[0036] <Fourth embodiment> Next, a fourth embodiment of the present invention will be described. In the fourth embodiment of the present invention, a label 44 having a fragile portion formed therein is used. Hereinafter, the configuration of a container 4 according to the fourth embodiment of the present invention will be described with reference to Figs. 6 and 7.
[0037] (composition) Fig. 6 is an explanatory diagram showing the appearance of a container 4 according to a fourth embodiment of the present invention. Fig. 7 is an explanatory diagram showing a container 4 in a state where a label 44 is not attached. A fragile portion 48 is formed in a part of the label 44 according to the fourth embodiment of the present invention. As shown in Fig. 6, the fragile portion 48 may be a perforation. However, the fragile portion 48 may be any portion that is more easily torn than other portions of the label 44, and may be, for example, a portion that is formed thinner than other portions of the label 44.
[0038] The non-flat portion 34 of the container body 14 according to the fourth embodiment of the present invention is formed at a position overlapping the weakened portion 48. Since the weakened portion 48 is formed at a portion away from the edge of the label 44 as shown in Fig. 6, the non-flat portion 34 is formed inside the attachment area 60, and is not formed at a position outside the attachment area 60 adjacent to the attachment area 60 as shown in Fig. 7.
[0039] Furthermore, label 44 is formed with an indication that indicates the position of non-flat portion 34. In the example shown in Fig. 6, label 44 is formed with an indication 49 that indicates the position of non-flat portion 34, including an arrow that points to fragile portion 48 and text that guides the user to tear fragile portion 48 before peeling off label 44.
[0040] (Action and effect) The fourth embodiment of the present invention described above provides a variety of advantageous effects. For example, in the fourth embodiment of the present invention, the non-flat portion 34 is formed at a position that overlaps the fragile portion 48. That is, the adhesive strength between the label 44 and the body portion 110 is weakened at the fragile portion 48. This allows a user or a business that collects the container 4 to tear the label 44 at the fragile portion 48 and then easily peel the label 44 from the edge of the fragile portion 48.
[0041] 7, the non-flat portion 34 is formed inside the attachment area 60, and is not formed outside the attachment area 60 in a position adjacent to the attachment area 60. In other words, the non-flat portion 34 is not directly visible when the label 44 is attached, which makes it possible to improve the aesthetic appeal of the container 4.
[0042] Furthermore, according to the fourth embodiment of the present invention, label 44 is formed with markings 49 that indicate the position of non-flat portion 34. With this configuration, a user or a business that collects container 2 can tear fragile portion 48 and then easily peel off label 44 by following markings 49.
[0043] <Supplementary information> Although the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the technical scope of the present invention is not limited to these examples. It is clear that a person skilled in the art of the present invention can conceive of various modifications or alterations within the scope of the technical idea described in the claims, and it is understood that these also naturally fall within the technical scope of the present invention.
[0044] For example, the following design may be applied to the recesses or protrusions formed on the non-flat portions 31 to 34 (hereinafter collectively referred to as non-flat portion 30) according to the above-described embodiment.
[0045] The shape of the recessed or protruding portions may be, for example, a point (circle), a line, or a curve. Such a shape has the effect of making it easier to peel off the label 40 from the container 1, etc. The shape of the recessed or protruding portions is not limited to the above-mentioned shapes, and other shapes can be applied as long as they achieve the effects of the present invention.
[0046] The difference in height between the most outwardly protruding portion of the non-flat portion 30 and the most inwardly recessed portion of the non-flat portion 30 may be, for example, 0.3 mm or more and 5.0 mm or less. More preferably, the difference in height may be 0.8 mm or more and 2.0 mm or less. A difference of 0.3 mm or more provides the effect of enabling partial bonding of only the non-flat portion 30, while a difference of 5.0 mm or less provides aesthetic appeal.
[0047] The distance between the tops of adjacent protrusions may be 1 mm or more and 10 mm or less. More preferably, the distance may be 2 mm or more and 5 mm or less. A distance of 1 mm or more reduces the adhesion area of the label 40 to the protrusions, making it easier to peel the label 40 from the container 1, etc., while a distance of 10 mm or less allows the label 40 to adhere evenly without sinking between the protrusions. [Explanation of symbols]
[0048] 1, 2, 3, 4 containers 10, 12, 13, 14 Container body 110 Torso 120 bottom 130 Oral area 140 Handle 20 Caps 30, 31, 32, 33, 34 Non-flat area 40, 44 Label 46, 47, 49 display 48 Weakened part 60 Paste Area 67 En
Claims
1. A container formed by blow molding that can accommodate contents, a surface portion including an attachment area to which a label is attached; The label attached to the attachment area; Equipped with a non-flat portion having a recess or a protrusion formed on a part of the surface portion; The attachment area has a plurality of edges along a direction intersecting the height direction of the container, A container wherein the non-flat portion is formed so as to overlap one end of the edge located on the bottom side of the container among the plurality of edges, but not to overlap the other end of the edge located on the bottom side.
2. A container formed by blow molding that can accommodate contents, a surface portion including an attachment area to which a label is attached; The label attached to the attachment area; Equipped with a non-flat portion having a recess or a protrusion formed on a part of the surface portion; the attachment area and the non-flat portion overlap, A weakened portion is formed in a part of the label, The container, wherein the non-flat portion is formed at a position overlapping the fragile portion.
3. A container as described in claim 2, wherein the non-flat portion has dot-shaped recesses or protrusions formed therein.
4. The container according to claim 2 , wherein the non-flat portion is formed inside the attachment area and is not formed outside the attachment area at a position adjacent to the attachment area.
5. The container according to claim 2 , wherein the label has an indication indicating the position of the non-flat portion.
Citation Information
Patent Citations
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