JP5765072B2 - Labeled containers and shrink labels - Google Patents

Description

  The present invention relates to a labeled container in which a shrink label is mounted in a range including a grip portion provided on a container body, and a shrink label suitable for such a container.

  For example, a synthetic resin container formed by forming a preform using a synthetic resin such as polyethylene terephthalate and then molding the preform into a bottle shape by stretch blow molding or the like is used in a wide range of fields. In particular, in recent years, the use as a container for beverages containing various beverages as contents is increasing more and more.

  Various types of containers have been proposed as a container of this type. However, in order to give the body the necessary strength, the waist is formed by narrowing the center in the height direction of the body along the circumferential direction. The waist part formed in this way not only functions as a reinforcing part, but also functions as a gripping part that hooks a finger when holding the container with one hand. . For this reason, it is possible to improve the ease of holding the container by forming the waist portion, and a container that improves the ease of holding the container by combining a gripping concave portion with such a waist portion is also known. .

By the way, when filling and sealing the contents of this kind of containers and distributing them to the market, in many cases, heat shrinkable shrink labels printed with product names, contents indications, and decorative designs are attached to the containers. Has been.
However, when the shrink label is attached to the container, if the shrink label is attached to a range including the grip portion recessed inside the container, such as the waist portion as described above, the shrink label becomes the waist portion or the holding recess. It is conceivable that the function of the gripping portion is impaired due to the state of floating without following contraction.
For this reason, for example, Patent Document 1 and Patent Document 2 propose a technique for mounting a shrink label along a recess provided in a container body as a gripping portion.

JP 2009-286428 A JP 2008-137690 A

However, in Patent Document 1, when the shrink label is attached to the container body, the portion corresponding to the concave portion provided as the grip portion is pressed against the concave side with a jig, and the shrink label is made into the concave portion. There is a problem in that not only a dedicated jig for this purpose is required, but also the number of steps required to attach the shrink label to the body increases.
Further, in Patent Document 2, a portion of the shrink label attached to the body portion that is opposed to the concave portion provided as the gripping portion is depressed in the concave portion and fixed with an adhesive, and at the time of disposal. There is a problem that separation of labels becomes difficult.

  The present invention has been made in view of the circumstances as described above, and includes a waist portion formed by narrowing the center in the height direction of the trunk portion along the circumferential direction, and a container held in combination with such a waist portion. Even if a heat-shrinkable shrink label is attached to the area including the grip part recessed inward of the container, such as a concave part for grip provided to improve ease, the ease of holding the container is impaired. It is an object of the present invention to provide a container with a label that does not end up and a shrink label suitable for such a container.

The labeled container according to the present invention is a labeled container in which a grip part recessed inward of the container is formed in the container body part, and a shrink label is mounted in a range including the grip part, A cutout portion is provided at a position overlapping with the gripping portion, and an upper side cutout line and a lower side cutout line forming the cutout portion intersect each other so as to form a corner at both ends in the circumferential direction , and the body portion is a corner portion. It is set as the structure which is made into the square cylinder shape which chamfered and the circumferential direction both ends of the said cut-out part are located in the said chamfered corner | angular part .

  According to the present invention, even if a heat-shrinkable shrink label is attached in a range including a grip portion recessed inward of the container, the ease of holding the container can be prevented.

It is explanatory drawing which shows the container with a label which concerns on embodiment of this invention. It is explanatory drawing which shows the example which provided the circular cutout part previously in the label before shrinking | contraction. It is explanatory drawing which shows the example of the cutout part applicable to embodiment of this invention. It is explanatory drawing which shows the modification of the labeled container which concerns on embodiment of this invention. It is explanatory drawing which shows the modification of the labeled container which concerns on embodiment of this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an explanatory view showing a labeled container according to the present embodiment.

In this embodiment, the container 1 is formed by, for example, biaxial stretching blow molding of a bottomed cylindrical preform made of a thermoplastic resin manufactured by known injection molding or compression molding, as shown in FIG. As shown to a), it shape | molds in the predetermined | prescribed container shape provided with the mouth part 2, the shoulder part 3, the trunk | drum 4, and the bottom part 5. FIG.
FIG. 1B shows a state in which the label 9 is attached to the container 1, which will be described later.

  As the thermoplastic resin used to mold the container 1, any resin can be used as long as stretch blow molding is possible. Specifically, thermoplastic polyesters such as polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polycarbonate, polyarylate, polylactic acid or copolymers thereof, those blended with these resins or other resins are suitable. It is. In particular, an ethylene terephthalate thermoplastic polyester such as polyethylene terephthalate is preferably used. Further, acrylonitrile resin, polypropylene, propylene-ethylene copolymer, polyethylene and the like can be used.

  In the example shown in FIG. 1, the mouth portion 2 has a cylindrical shape, and a screw thread for attaching a lid body (not shown) is provided on the side surface on the opening end side of the mouth portion 2 as lid body attaching means. It has been. Thereby, after filling the contents, the inside of the container 1 can be sealed by attaching the lid to the mouth portion 2.

The shoulder portion 3 is located between the mouth portion 2 and the trunk portion 4 and is formed so as to continue to the trunk portion 4 while expanding the diameter from directly below the mouth portion 2. The trunk | drum 4 is a part which occupies most of the height direction of the container 1, and in this embodiment, as shown in FIG.1 (d), it becomes a square cylinder shape by which the corner | angular part 4a was chamfered. I have to. Thereby, the container 1 is made into the square bottle-shaped container shape.
The height direction means a direction along a direction perpendicular to the horizontal plane when the container 1 is placed on the horizontal plane with the mouth portion 2 facing up. FIG. 1D is a cross-sectional view taken along the line AA in FIG. 1B, but the thickness of the cross section is omitted in the drawing.

  In the body part 4, after the contents are sealed and filled at a high temperature, the gas present in the head space in the container after being cooled or when the pressure in the container is reduced or dissolved is dissolved in the contents. When the pressure in the container decreases, an internal pressure adjusting panel 6 is formed to absorb the decrease in internal pressure due to the deformation. The specific form of the internal pressure adjusting panel 6 is not limited to that shown in the figure, and various forms that exhibit a desired function can be applied.

  In addition, a waist portion 7 squeezed along the circumferential direction is formed at substantially the center of the body portion 4 in the height direction. Such a waist portion 7 is provided in order to increase the rigidity in the vicinity of the center of the container 1 in the height direction. Function. For this reason, in the example shown in FIG. 1, the waist portion 7 is formed in a groove shape over the entire circumference of the body portion 4, and is formed in a groove shape in the center in the width direction of each surface of the body portion 4 having a rectangular tube shape. The formed waist portion 7 is bent up and down to widen the groove width, so that the portion with the wide groove width becomes the grip portion 8. In this way, when gripping the body portion 4, it becomes easy to attach fingers to the grip portion 8, and the ease of holding the container 1 is improved.

As described above, FIG. 1B shows a state where the label 1 for displaying the contents to be filled and sealed in the container 1 is attached to the container 1. In this example, the label 9 is mounted on almost the entire surface of the container 1. However, in this embodiment, the label 9 is mounted in a range including the grip portion 8 recessed inward of the container.
As the label 9, a heat-shrinkable film material (shrink film) having printability is used, and a heat-shrinkable film material on which desired printing has been performed is formed into a cylindrical shape and covered on the container 1, and this is heated. The container 1 is mounted by being contracted so as to be in close contact with the side surface of the container 1.

When the label 9 is mounted in a range including the grip portion 8 of the container 1, a cutout portion 10 is provided at a position overlapping the grip portion 8 of the label 9.
Note that FIG. 1C shows only the cutout portion 10 extracted from FIG.

  By providing such a cutout portion 10, even if the label 9 is attached in a range including the grip portion 8, it is possible to attach a finger directly to the grip portion 8, and the label attached to the container 1. 9 can be prevented from hindering the fingers 8 from being attached to the grip portion 8. That is, if the cutout portion 10 is not provided, when the label 9 is attached to the container 1, the label 9 is lifted without following the gripping portion 8, and it is difficult to hook a finger on the gripping portion 8. However, such a problem can be effectively avoided by providing the cutout portion 10 at a position overlapping the grip portion 8 of the label 9.

  By the way, if it is going to provide such a cutout part 10 in the said label 9 after mounting | wearing the container 1 with the label 9, a very complicated operation will be required and it is not realistic from the point of production efficiency. For this reason, before the label 9 is attached to the container 1, the cutout portion 10 is provided in advance on the label 9 before being contracted. Therefore, the specific shape of the cutout portion 10 must be designed in consideration of the deformation accompanying the contraction of the label 9 when it is mounted on the container 1.

When the label 9 provided with the cutout portion 10 is contracted in a state of being wound around the container 1, the portion provided with the cutout portion 10 is pulled more in the circumferential direction than the other portions, Looseness is likely to occur at the peripheral edges of both ends in the circumferential direction of the cutout 10. For example, as shown in FIG. 2, when the cutout portion 10 is provided in a circular shape, when the label 9 contracts, tension is applied to the peripheral edge of the cutout portion 10 in the circumferential direction so that the cutout portion 10 is elliptical. At this time, slack occurs at the peripheral edges of both ends in the circumferential direction of the cutout portion 10, and the slack portion 11 protrudes so as to rise.
In FIG. 2, a cutout portion (shown by a thin line in the figure) provided in a circular shape on the label before being attached to the container, and a cutout portion deformed as the label contracts when attached to the container (in the figure) (Shown in bold lines).

In this way, when the label 9 is simply formed in a circular shape on the label 9 before contraction, when the label 9 contracts, the peripheral edge of the cutout part 10 at both ends in the circumferential direction rises and protrudes. Thus, there may be a problem such that the user feels uncomfortable by hitting a finger gripping the torso 4.
Such a defect is not limited to the case where the cutout part 10 is formed in a circular shape, and the same problem occurs even when the circumferential ends of the cutout part 10 are linearly extending in the height direction or gently curved. Can occur.

Therefore, in the present embodiment, the upper side cut line 10a and the lower side cut line 10b forming the cut part 10 intersect with each other at an angle (corner) at both ends in the circumferential direction.
By doing so, when the label 9 contracts, the peripheral edge of both ends in the circumferential direction of the cut-out portion 10 is prevented from slackening, and the peripheral edges at both ends in the circumferential direction of the cut-out portion 10 rise and protrude. Can be effectively avoided.

Prior to mounting the label 9 on the container 1, when the cutout portion 10 is provided in advance on the label 9 before contracting, the specific shape of the cutout portion 10 is a gripping portion formed on the body portion 4 of the container 1. The shape can be appropriately designed according to the shape of 8 and the deformation accompanying the contraction of the label 9.
In order to provide the cutout portion 10 in the label 9, the cutout portion 10 may be provided in the process of manufacturing the label 9, or the cutout portion 10 may be provided immediately before the label 9 is attached to the container 1. Specifically, the label 9 is usually manufactured by adhering the overlapped portions of the heat-shrinkable film in a cylindrical shape, and is wound around a roll in a flatly folded state. Before winding 9 on a roll, the cutout part 10 may be provided by cutting out a predetermined part of the label 9 folded flat. Further, when attaching the label 9 to the container 1, the label 9 for one container may be cut out from the label 9 rewound from the roll, and a predetermined part of the label 9 may be cut out.

An example of the cutout portion 10 applicable to the present embodiment is shown in FIG. 3, but when the label 9 is attached to the container 1, it is more difficult to cause looseness at the peripheral edges at both ends in the circumferential direction of the cutout portion 10. When the cutout portion 10 is provided in the label 9 before shrinking in advance, the upper side cutout line 10a and the lower side cutout line 10b forming the cutout portion 10 are 90 ° or less at both circumferential ends. Intersect at an angle α .
Moreover, it is preferable that the angle which each of the upper side cut-out line 10a and the lower side cut-out line 10b makes with a horizontal direction is 60 degrees or less in the circumferential direction both ends.
Further, at the angle formed by the upper side cutout line 10a and the lower side cutout line 10b intersecting at such an angle, the radius of curvature is 5 mm or less, within a range where the slackness of the peripheral edges of the cutout part 10 can be suppressed. Preferably, R of 1 mm or less may be formed.
As in FIG. 2, in FIG. 3, a cutout portion (shown by a thin line in the figure) provided on the label before being attached to the container and a cutout deformed as the label is contracted when attached to the container. (Shown by bold lines in the figure) are shown in an overlapping manner. Further, the angle α in the example shown in FIG. 3A is 90 °, and the angle α in the examples shown in FIGS. 3B to 3D is 60 °.

In addition, even if a slight slack occurs at the peripheral edge of both ends in the circumferential direction of the cutout portion 10, both ends in the circumferential direction of the cutout portion 10 are shown in FIG. As shown, it is positioned so as to be positioned at a chamfered corner portion 4a of the rectangular tubular body portion 4 .

  Further, when the label 9 is attached to the container 1 and the upper side cut line 10a forming the cutout portion 10 includes a convex curve on the lower side in the height direction, the label 9 is bent at that portion. There is a risk that. For this reason, it is preferable that the upper side cut-out line 10a is formed of a straight line or a convex curve on the upper side in the height direction at least at both ends in the circumferential direction. Similarly, if the lower side cutout line 10b forming the cutout portion 10 includes a convex curve on the upper side in the height direction, the label 9 may be bent at that portion. Therefore, the lower side cutout line 10b is preferably made of a straight line or a convex curve on the lower side in the height direction at least at both ends in the circumferential direction.

  Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. Nor.

  For example, in the above-described embodiment, the gripping portions 8 are provided on each surface of the body portion 4 that is formed in a rectangular tube shape, but the gripping portions 8 may be provided on a pair of opposing surfaces. Although not shown in particular, when the cross section perpendicular to the height direction of the body part 4 is rectangular, there is a problem in gripping the body part 4 such as providing a grip part on a pair of surfaces located on the long side. Various modifications can be made without departing from the scope.

In the example shown in FIG. 1, the grip portion 8 is formed by vertically bending the waist portion 7 formed in a groove shape at the center in the width direction of each surface of the body portion 4 having a rectangular tube shape. However, the specific shape of the gripping portion 8 is not limited to this.
As shown in FIG. 4, at the center in the width direction of each surface of the body portion 4 having a rectangular tube shape, the waist portion 7 formed in a groove shape is curved only downward to form the grip portion 8. Although not particularly illustrated, the grip portion 8 may be formed by bending the waist portion 7 formed in a groove shape only upward.
In the example shown in FIGS. 1 and 4, the entire gripping portion 8 or a part of the gripping portion 8 is recessed deeper or shallower than the groove depth of the waist portion 7, or an inclination extending from the trunk portion 4 to the waist portion 7. It can also be composed of surfaces.

Furthermore, as shown in FIG. 5, the waist portion 7 may be formed in a groove shape having an equal width, and the waist portion 7 itself may function as the grip portion 8. Although not particularly illustrated, a position where the body portion 4 can be easily gripped may be recessed toward the inside of the container so that the recess functions as the grip portion. In this case, the recess functioning as the grip portion is defined as the waist portion 7. Although it may be combined, the waist portion 7 may be omitted and only the depression may be used as the grip portion. Further, an anti-slip step or a rib may be provided in the grip portion 8.
In any case, the present invention can be applied to a container with a label in which a grip portion recessed inward of the container is formed in the container body portion and a shrink label is attached in a range including the grip portion. The specific shape of the cutout portion 10 provided on the label 9 is also appropriately designed within the scope of the present invention according to the shape of the indented portion of the container that functions as the gripping portion, the deformation accompanying the contraction of the label 9, and the like. can do.

  The present invention as described above provides a labeled container that does not impair the ease of holding even when a heat-shrinkable shrink label is attached to a range including a grip portion recessed inward of the container. .

1 Container 4 Body 4a Corner 7 Waist 8 Grip 9 Label 10 Cutout 10a Upper Side Cutout Line 10b Lower Side Cutout Line

Claims (4)

A container with a label in which a grip part recessed inward of the container is formed in a container body part, and a shrink label is attached to a range including the grip part,
A cutout portion is provided at a position overlapping the grip portion of the shrink label,
The upper side cut line and the lower side cut line that form the cut portion intersect so as to form an angle at both ends in the circumferential direction ,
The body is a square tube with a chamfered corner,
Both ends of the cutout in the circumferential direction are located at the chamfered corners . The upper side cut-out line on at least both ends in the circumferential direction is a straight line or a convex curve on the upper side in the height direction,
2. The labeled container according to claim 1, wherein at least the lower side cut-out line on both ends in the circumferential direction is a straight line or a convex curve on the lower side in the height direction. The trunk is a rectangular tube,
The labeled container according to claim 1, wherein the grip portion is provided on at least a pair of opposing surfaces, and the cutout portion is provided at a position overlapping each of the grip portions. A shrink label to be attached to a synthetic resin container in which a grip portion recessed inward of the container is formed,
A cutout portion is provided at a position that overlaps the gripping portion when mounted on the container,
A shrink label, wherein an upper side cut line and a lower side cut line forming the cut portion intersect at an angle of 90 ° or less at both circumferential ends.

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