JP5118856B2 - Labeled bottle and label fixing method - Google Patents

Description

  In the present invention, a beverage or the like is provided with a reduced diameter portion at the center of a cylindrical body portion such as a polyethylene terephthalate bottle (hereinafter referred to as a PET bottle), and the reduced diameter portion is provided between the reduced diameter portion and the bottom portion. The present invention relates to a labeled bottle in which a step having a larger outer diameter than a diameter portion is provided, and a cylindrical label made of a synthetic resin film is fixed to the reduced diameter portion, and a method for fixing the label to the bottle.

  Conventionally, plastic bottles are filled with soft drinks, fruit juices, etc., sealed with a cap attached to the mouth, and a cylindrical label made of synthetic resin film is fixed to the body. Bottles are widely used.

  At present, it is necessary to peel off a label at the time of disposal in a PET bottle for recycling, and the label is required to have high peelability. Therefore, heat-shrinkable labels (also referred to as shrink labels) that can be fixed without requiring gluing and can be easily broken and peeled off by perforations or the like are frequently used.

  However, the heat-shrinkable label has poor stretchability and is not glued, so that there is a problem that the label is displaced from the container and the label is difficult to move. In particular, carbonated beverages with large capacities of 1.5L or 2L cylindrical plastic bottles are subject to volume fluctuations due to changes in internal pressure, and when the bottle internal pressure drops after opening, there is a gap between the label and the bottle body. There is a problem that the label moves and is difficult to hold. In contrast, for example, techniques disclosed in Patent Documents 1 and 2, for example, have been proposed.

  In Patent Document 1, a cylindrical shrink label having a heat shrinkability that is fitted to at least the body of a container having a constricted part in the body is heated and contracted to attach the shrink label to the container. A method for mounting a shrink label on a container is disclosed, wherein a predetermined area below the constricted portion of the shrink label is contracted prior to another area.

Patent Document 2 discloses a heat-shrinkable laminated film characterized by having a film made of the following resin composition A as an intermediate layer (A) and a film made of resin composition B as both outer surface layers (B), and heat shrinkage. A packaged lightweight PET bottle is disclosed in which a perforated tubular film made of a conductive laminated film is heat-shrink-tightened to a lightweight PET bottle as a label. <Resin Composition A> Linear low-density polyethylene resin 45 to 65 mass%, low-density polyethylene resin 5 to 25 mass%, cyclic olefin resin 5 to 15 mass%, and petroleum resin 5 to 25 mass% based on a metallocene catalyst. <Resin composition B> Cyclic olefin resin 70-90 mass% and linear low density polyethylene resin 10-30 mass%.
JP 2006-1573 A JP 2006-27052 A

However, the above-described conventional technique has the following problems.
As disclosed in Patent Document 1, the method of covering an entire bottle with a heat-shrinkable label has a problem that a large-capacity PET bottle requires a large amount of label to be used and is difficult to uniformly shrink. Also, in order to improve the rigidity of the bottle and to ensure uprightness, bottles with multiple legs at the bottom will form gaps if the legs are covered with heat-shrinkable labels, resulting in poor appearance and objects in the gaps. There are problems such as being easily caught.

  The packaged lightweight PET bottle disclosed in Patent Document 2 is subject to volume fluctuations due to changes in internal pressure. When the bottle internal pressure is reduced by opening the bottle, a gap is generated between the label and the bottle body, and the label moves. The problem of being difficult to hold has not been solved.

  This invention is made | formed in view of the said situation, and it aims at provision of the bottle with a label and label fixing method which can fix a label firmly to the trunk | drum of a bottle.

In order to achieve the above object, the present invention provides a reduced diameter portion at the center of a cylindrical body, a step having a maximum outer diameter is provided between the reduced diameter portion and the bottom portion, and a plurality of leg portions. In a bottle with a label in which a cylindrical label made of a synthetic resin film is fixed to the reduced diameter portion,
The label, the Ri Do from heat-shrinkable label extending from the reduced diameter portion the lower end to a position covering said step, a position above the legs lower end of the heat-shrinkable label is a more 15mm above lower the step There is provided a bottle with a label characterized by

  In the labeled bottle of the present invention, it is preferable that the bottle is a polyethylene terephthalate bottle and the label is a polyolefin resin heat-shrinkable film.

Further, according to the present invention, a reduced diameter portion is provided in the center of the cylindrical body, a step having a maximum outer diameter is provided between the reduced diameter portion and the bottom portion, and a bottle having a plurality of legs is provided. In the label fixing method of fixing a cylindrical label made of a synthetic resin film to the reduced diameter portion,
A heat-shrinkable label that reaches from the lower end of the reduced diameter portion to the position covering the step is used at the time of heat shrinkage, and the heat-shrinkable label is disposed at a position at least 15 mm below the step and above the leg portion. Then, a label fixing method is provided, wherein the heat-shrinkable label is contracted from the lower part.

  Since the bottle with a label according to the present invention has a heat-shrinkable label extended from the lower end of the reduced diameter portion to a position covering the step, the label is difficult to loosen even when the bottle inner pressure is reduced by opening the bottle. Therefore, it is possible to prevent the label from idling or shifting up and down.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an embodiment of a labeled bottle according to the present invention. The bottle 1 with a label of the present embodiment is provided with a reduced diameter portion 6 at the center of a cylindrical body portion 3, and a step having a larger outer diameter than the other body portions between the reduced diameter portion 6 and the bottom portion 4. A cylindrical label 9 made of a synthetic resin film is fixed to the reduced diameter portion 6 of the plastic bottle 2 provided with 7. The label 9 has a step 7 from the lower end of the reduced diameter portion 6. It is characterized by comprising a heat-shrinkable label having an extended portion 10 extended to a covering position.

  In the bottle 1 with a label of the present embodiment, a plastic bottle 2 having a cylindrical body 3 is used as the bottle. A male screw (not shown) is provided on the outer periphery of the mouth portion provided on the upper portion of the PET bottle 2, and a cap 8 having a female screw on the inner peripheral surface is attached to the male screw. In addition, a plurality of legs 5 are provided at the lower part of the plastic bottle 2 in order to improve the rigidity of the bottle and to ensure uprightness. The lower end of the label 9 is located below the step 7 and above the leg 5.

  The PET bottle 2 is provided with a reduced diameter portion 6 at the center of the cylindrical barrel portion 3, and a step 7 having a larger outer diameter than the other barrel portions is provided between the reduced diameter portion 6 and the bottom portion 4. The shape and dimensions of the details are not particularly limited. Further, if the outer diameter of the step 7 is slightly larger than that of the other body portion, the effect according to the present invention, that is, the effect of preventing the periphery of the label and displacement, can be obtained, so that the step 7 is generated by the joint portion of the mold at the time of molding the container. Steps can also be used. Note that a bulging portion or a step having an outer diameter comparable to that of the step can be provided on the upper portion of the reduced diameter portion 6.

  In the bottle with label 1 of the present embodiment, the label 9 is formed of a cylindrical heat-shrinkable label and extends from the lower end of the reduced diameter portion 6 to a position covering the step 7 while being fixed to the body portion 3 of the PET bottle 2. Sized to have an extended portion 10 formed thereon. The material of the label 9 is preferably a polyolefin resin such as a polyethylene resin. For example, as disclosed in Patent Document 2, heat shrinkability including LLDPE resin, LDPE resin, cyclic olefin resin, petroleum resin, etc. A laminated film can also be used.

  In the bottle 1 with a label of this embodiment, the label 9 has an upper edge portion and an extended portion 10 as non-printing portions 11 and 11, and a portion between the non-printing portions 11 and 11 is a printing portion. It is twelve. The printing unit 12 is printed with product names, necessary notations, and the like. The label 9 is preferably formed with a label peeling break such as a perforation.

  Since the bottle 1 with a label of the present embodiment has a label 9 made of a heat-shrinkable resin film extended from the lower end of the reduced diameter portion 6 to a position covering the step 7, it is opened and the bottle internal pressure is reduced. Even when the label 9 is lowered, it is difficult for the label 9 to be loosened, and the label 9 can be prevented from being idle or shifted up and down.

In the bottle 1 with a label of the present embodiment, when the label 9 described above is fixed to the body 3 of the plastic bottle 2, it is preferably fixed by the label fixing method according to the present invention.
In the label fixing method according to the present invention, a reduced diameter portion 6 is provided at the center of a cylindrical body portion 3, and a step having a larger outer diameter than the other body portion 3 is provided between the reduced diameter portion 6 and the bottom portion 4. In the label fixing method of fixing the cylindrical label 9 made of a synthetic resin film to the reduced diameter portion 6 of the plastic bottle 2 provided with the plurality of leg portions 5, the diameter reduction is performed during heat shrinkage. A heat-shrinkable label that reaches the position covering the step 7 from the lower end of the portion 6, the heat-shrinkable label is disposed at a position where the lower end is below the step 7 and above the leg 5, and then the heat-shrinkable label Is contracted from the lower part.

  According to the label fixing method according to the present invention, the label 9 extended from the lower end of the reduced diameter portion 6 to the position covering the step 7 can be reliably fixed to the body portion 3 of the plastic bottle 2.

A plastic bottle having a height of 305 mm, a maximum outer diameter (step outer diameter) of 92.5 mm, a distance from the lower end of the bottom portion to the step of about 53 mm, and a length of the reduced diameter portion of about 118 mm is filled with a carbonated beverage, Samples of Examples 1 to 9 were prepared by fixing heat-shrinkable labels in which the length of the non-printing part was variously changed. After these samples were opened to reduce the bottle internal pressure, the fixed state of each label was examined. The evaluation criteria for the label fixing state were as follows.
A: There is no vertical displacement.
○: There is almost no vertical displacement.
Δ: There is a slight vertical shift.
X: Vertical displacement is present.

(Example 1)
The length of the non-printing part below the label was set to 5 mm (the lower end of the label was 60 mm from the grounding surface). The bottom of the label does not reach the level difference. The label fixing state in Example 1 was x.

(Example 2)
The length of the non-printing part below the label was 10 mm (the lower end of the label was 55 mm from the ground contact surface). The bottom of the label does not reach the level difference. The label fixing state in Example 2 was x.

(Example 3)
The length of the non-printing part below the label was 15 mm (the lower end of the label was 50 mm from the ground surface). The lower end of the label has reached a level difference but is not completely covered. The label fixing state in Example 3 was x.

(Example 4)
The length of the non-printing part below the label was 20 mm (the lower end of the label was 45 mm from the ground contact surface).
The lower end of the label has reached a level difference but is not completely covered. The label fixing state in Example 4 was x.

(Example 5)
The length of the non-printing part below the label was 25 mm (the lower end of the label was 40 mm from the ground contact surface). The steps were almost covered with labels. The label fixing state in Example 5 was Δ.

(Example 6)
The length of the non-printing part below the label was 30 mm (the lower end of the label was 35 mm from the ground contact surface). The step was covered with a label. The label fixing state in Example 6 was ○.

(Example 7)
The length of the non-printing part below the label was 35 mm (the lower end of the label was 30 mm from the ground contact surface). The step was covered with a label. The label fixing state in Example 7 was ○.

(Example 8)
The length of the non-printing part below the label was 40 mm (the lower end of the label was 25 mm from the ground contact surface). The step was covered with a label. The label fixing state in Example 8 was ○.

(Example 9)
The length of the non-printing part below the label was 65 mm (label lower end = ground surface). The label fixing state in Example 9 was ◎.

  As described above, by extending the non-printing portion below the label by 25 mm from the normal 5 mm, it is possible to suppress the label idle rotation and vertical deviation after opening. When the non-printing portion is extended by 25 mm, the positional relationship is such that the step at the bottom of the bottle body extends over about 15 mm. Therefore, the non-printing part (extension part) is preferably provided by extending 15 mm or more from the step.

  As the label material, polyester resin, polystyrene resin, and polyolefin resin are mainly used. Among them, polyolefin resin is most effective.

  When it is going to reproduce the said mounting | wearing state, it can prevent that a label shifts | deviates up and down at the time of shrinkage | contraction by carrying out heating shrinkage simultaneously before and behind a bottle trunk | drum lower part level | step difference.

It is a side view which shows one Embodiment of the bottle with a label of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Bottle with label, 2 ... PET bottle, 3 ... Body part, 4 ... Bottom part, 5 ... Leg part, 6 ... Reduced diameter part, 7 ... Level difference, 8 ... Cap, 9 ... Label, 10 ... Extension part, 11 ... Non-printing part, 12... Printing part.

Claims (3)

A diameter-reduced portion is provided at the center of the cylindrical body, a step having the maximum outer diameter is provided between the diameter-reduced portion and the bottom, and a plurality of legs are provided. In a bottle with a label to which a cylindrical label made of a film is fixed,
The label, the Ri Do from heat-shrinkable label extending from the reduced diameter portion the lower end to a position covering said step, a position above the legs lower end of the heat-shrinkable label is a more 15mm above lower the step A bottle with a label characterized by The bottle with a label according to claim 1, wherein the bottle is a polyethylene terephthalate bottle, and the label is a polyolefin resin heat-shrinkable film. A diameter-reduced portion is provided at the center of the cylindrical body portion, a step having a maximum outer diameter is provided between the diameter-reduced portion and the bottom portion, and the diameter- reduced portion of the bottle provided with a plurality of legs is provided. In a label fixing method for fixing a cylindrical label made of a synthetic resin film,
A heat-shrinkable label that reaches from the lower end of the reduced diameter portion to the position covering the step is used at the time of heat shrinkage, and the heat-shrinkable label is disposed at a position at least 15 mm below the step and above the leg portion. Then, the heat-shrinkable label is shrunk from the lower part, and the label fixing method is characterized by the following.

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