JPH0766235B2 - Stretch label and its mounting method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretch label to be attached to a container such as a bottle made of polyethylene terephthalate filled with a carbonated beverage and a method of attaching the stretch label.

[0002]

2. Description of the Related Art Conventionally, for example, a polyethylene terephthalate bottle (hereinafter referred to as a PET bottle) has been used as a container for filling a carbonated beverage containing fruit juice and the like, and the PET bottle is printed with a character pattern or the like. A label made of waterproof paper was attached. However, since the waterproof paper label was attached to the PET bottle via an adhesive,
When reusing a bottle, it was difficult to separate the bottle from the label.

Therefore, there is a case where a stretch label formed by forming a stretch film having a self-stretching property which is easy to separate from a bottle into a cylindrical shape is externally fitted and attached because an adhesive is not used. When the above-mentioned carbonated beverage is filled in a PET bottle with this label attached, the PET bottle expands slightly in the radial direction due to carbonic acid, and in this state, the PET bottle 1 with the label attached is heated with hot water at about 70 ° C by a pasteurizer. Sterilization treatment (pasteurization) is performed by jetting for a predetermined time.

[0004]

However, since the sterilization treatment is performed with warm water as described above, the self-elastic contraction force of the label in a tensioned state is slightly reduced. Therefore,
When pouring drinking water from a PET bottle, carbonic acid in the bottle is released and the PET bottle shrinks in the radial direction. However, the shrinkage of the PET bottle causes the label to lose its self-elastic shrinkage force. When the PET bottle was lifted through the label, the label could easily come off the PET bottle.

As a means for solving the above problem, it is possible to attach the label to a PET bottle via an adhesive, but in this case, the bottle can be reused as in the case of the waterproof paper label. There are drawbacks that make it difficult.

The present invention has been made in view of the above-mentioned problems of the prior art, and prevents the container from falling out even if the self-elastic contraction force is lowered, and further, PE
An object of the present invention is to provide a stretch label that is most suitable for reuse of T bottles, and to enable the stretch label to be easily and quickly attached to a container.

[0007]

The present invention has been made as a stretch label and a method of mounting the stretch label in order to solve the above problems. The feature of the stretch label is that the stretch film 8 having self-elastic contraction force is used. In a stretch label which is formed in a tubular shape and is fitted onto the container 1 in a state where the stretch film 8 is expanded and expanded via the expandable and contractible expanding means 14 inserted into the cylindrical stretch film 8, On the inner surface of the stretch film 8 and at the portion where the diameter is expanded by the expansion means 14, slip prevention means 10 for preventing slippage with the container 1 is provided.

A feature of the stretch label attaching method is a stretch label attaching method in which a stretch label 5 having a cylindrical self-elastic contraction force is externally attached to the container 1 and the inner surface of the stretch label 5 is attached. Further, a slip prevention means 10 for preventing slippage with the container 1 is provided, and after expanding and contracting expanding means 14 is inserted into the stretch label 5, the expansion preventing means 14 prevents the stretch label 5 from slipping. The part of the means 10 is expanded, and the expanded stretch label 5 is fitted onto the container 1.

[0009]

In the method of mounting the stretch label of the present invention, when the expanding means 14 is inserted into the stretch label 5,
The expansion means 14 expands and widens the portion of the stretch label 5 where the slip prevention means 10 is provided.

Since the stretch label 5 is fitted onto the container 1 in a state where the portion provided with the slip prevention means 10 is expanded, the friction resistance of the slip prevention means 10 does not act on the container 1. The mounting work can be done smoothly.

Further, in the stretch label of the present invention, even if the self-elastic contraction force of the label 5 is weakened, the slip preventing means 10 can prevent the PET bottle 1 from slipping.
Since the bottle 5 comes into contact with the bottle 1, even if the PET bottle 1 is lifted via the label 5, the label 5 is not likely to shift or come off.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 4 (c), reference numeral 1 denotes a PET bottle filled with a carbonated beverage containing fruit juice, for example, a cylindrical stretch label 5 is externally fitted and attached to a body portion 2 having a circular cross section, and a mouth portion on the upper side. A cap 7 is detachably screwed to the portion 6.

The label 5 is, for example, as shown in FIG.
A tubular shape is obtained by polymerizing both ends of an elastic stretchable rectangular stretch film 8 made of a polyethylene resin such as low density polyethylene or ethylene-vinyl acetate copolymer by an appropriate means such as an adhesive or heat sealing. Is formed in.

The outer diameter of the label 5 is set to be slightly smaller than the outer diameter of the body portion 2 of the PET bottle 1, and on the inner surface of the label 5, a display printing layer for displaying a character pattern or the like with printing ink. 11 and an anti-slip layer 10 as an anti-slip means for preventing slippage with the PET bottle 1.

That is, the anti-slip layer 10 has a rectangular shape and is provided at four positions at the lower edge of the label 5 and at equal intervals. Each anti-slip layer 10 is the PET bottle 1
On the other hand, it is printed with an ink having a large frictional resistance, and the printing of the slip prevention layer 10 is performed in the step of applying the display printing layer 11. Further, when a stretch film having a large frictional resistance is used, the slip prevention means can be provided as a non-printed portion where the surface of the film comes into contact with the bottle surface. As the ink of the display printing layer 11, a material having a smaller friction resistance than that of the ink of the anti-slip layer 10 and good slipperiness is adopted.

Next, a case where the stretch label 5 having the above structure is attached to the PET bottle 1 will be described.
First, as shown in FIG. 3A, the width L of the slip prevention layer 10 is
The plate-shaped four claws 13 having a larger width L1 are externally fitted and mounted from above on the expanding means 14 which is provided so as to be expandable and contractible in the radial direction of the stretch label 5. At this time, the claws 13 in the reduced diameter state are inserted up to the middle of the stretch label 5, and the claws 13 are in the positions corresponding to the respective slip prevention layers 10.

Next, when the respective claws 13 are opened,
13 covers the entire surface of the slip prevention layer 10 and widens the lower side of the stretch label 5 (see FIG. 3B). Furthermore, PE is applied to the stretched label 5 in the expanded state.
The T-bottle 1 is approached from below and its body 2 is inserted into the stretch label 5.

At this time, the lower side of the stretch label 5 is widely opened with the claws 13 covering the anti-slip layer 10, and the anti-slip layer 10 of course does not allow each claw 13 to contact the surface of the PET bottle 1. (See FIG. 2A). Further, since the upper side is not expanded in diameter, it slides on the surface of the PET bottle 1, but the sliding portion of the stretch label 5 has
Since the display printing layer 11 having a relatively small frictional force is provided, the display printing layer 11 reduces frictional resistance, and the body portion 2 of the PET bottle 1 is easily inserted into the stretch label 5 with a relatively small force. It is possible (see FIG. 4 (a)).

Further, when the stretch label 5 is fitted onto the PET bottle 1 as shown in FIG.
When the claw 13 is pulled out from the label 5 by the lowering of the expansion means 14 while the upper part of the stretch label 5 is sandwiched from both sides by the label 14, the label 5 is self-elastically contracted and the body 2 of the bottle 1 is pulled.
It is attached in close contact with (see FIG. 4C). At this time,
As shown in FIG. 2B, each slip prevention layer 10 of the stretch label 5 comes into contact with the body portion 2 of the PET bottle 1.

Next, after filling the PET bottle 1 having the above-mentioned structure with a carbonated beverage containing fruit juice, a pasteurizer is used to carry out a low temperature sterilization treatment such as spraying a hot water shower at about 70 ° C. for about 10 minutes.

When the PET bottle 1 is opened and drinking water is poured, the PET bottle 1 tends to shrink slightly in the radial direction due to the release of carbonic acid. If the self-elastic contraction force of the stretch label 5 is weakened by the pasteurization treatment,
Even though the tightening force of the label 5 on the PET bottle 1 is reduced, the anti-slip layer 10 having a large frictional resistance is in direct contact with the PET bottle 1, so the PET bottle 1 with the label 5 is held. Even if the label is lifted, the label 5 does not easily slip on the PET bottle 1 and will not slip off or fall out.

Further, FIG. 5 shows another embodiment of the present invention,
In this embodiment, a strip-shaped anti-slip layer 10 is provided over the entire circumference of the lower edge of the stretch label 5. Therefore, in the present embodiment, when the label 5 is attached to the PET bottle 1, the slip prevention layer 10 is P as shown in FIG.
It is possible to easily attach the label 5 to the PET bottle 1 by opening an arbitrary portion below the stretch label 5 with the claw 13 so as not to contact the ET bottle 1.

Further, in the embodiment shown in FIG. 6, a tape 10a made of a plastic film having a large frictional resistance as an anti-slip means is provided on the inner surface side of the superposed portion 9a of the stretch film 8 and the portion 9b facing the superposed portion 9a. However, the label 5 is attached over the entire length of the label 5. Therefore, the tape
The PET bottle 1 can be easily inserted by inserting the claw 13 over the entire length of the label 5 and enlarging the diameter of the label 5 so as to cover the label 10a. Incidentally, tape
10a does not necessarily have to be provided on the entire length of the label 5, but can be provided only on the lower part or the upper part.

Further, the anti-slip means 10 is provided at both ends of the label 5 as shown in FIG. 7 (a), or as a window in the middle of the label 5 as shown in FIG. 7 (b). However, the shape and position of the slip prevention means 10 are not limited, and the number of the claws 13 and the slip prevention means 10 are not limited.
It is not necessary to match the numbers of the slips, and the slip prevention means 10 may be provided at one place.

In the above embodiment, when the label 5 and the PET bottle 1 are brought close to each other, the label 5 is stopped and the PET bottle 1 is moved.
On the contrary, the PET bottle 1 may be fixed and the label 5 may be moved, or both may be moved.

Furthermore, in each of the above embodiments, the label 5 is formed by forming one stretch film 8 into a tubular shape, but it is also possible to form the label 5 by a plurality of stretch films 8. is there.

Moreover, the stretch label 5 is most effective when the content is a carbonated beverage containing fruit juice and is subjected to heat treatment, but the content is not particularly limited, and the heat treatment may be performed without fruit juice. It may be one. in this case,
Even if the stretch label 5 is heated by sunlight or the like and its self-elastic shrinkage is deteriorated, the shift of the label 5 can be prevented. Moreover, the shape of the container 3 is not limited to the one having a circular cross section as illustrated in the above embodiment, but may be a rectangular shape or a polygonal shape, and it is needless to say that it can be arbitrarily set.

[0028]

The stretch label of the present invention is provided with the slip prevention means for preventing slippage with the container on the inner surface of the stretch film and in the portion expanded in diameter by the expansion means. The label can be easily and quickly attached to the container, and even if the self-elastic contraction force of the label becomes weak, the slip prevention means of the stretch film directly contacts the container and the label slips or slips out. There is no danger of losing it.

Therefore, for example, when the content is a carbonated beverage containing fruit juice and subjected to warm water sterilization treatment, even if the self-elastic shrinkage force of the label may decrease, the container is lifted to pour the drinking water. This has the advantage of being able to effectively prevent the label from falling out, which is very practical.

Moreover, since the stretch label is made of a stretch film, it can be easily peeled off from the container and can be reused as compared with the conventional case of using a paper material and using an adhesive. It is also optimal from the aspect.

Further, the stretch label mounting method of the present invention can continuously and easily mount the stretch label which effectively prevents slippage with the container as described above. Therefore, it is possible to easily realize a series of automation such as the mounting process.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a stretch label including a partial breakage according to an embodiment of the present invention.

FIG. 2A is a sectional plan view showing a state where a stretch label is externally fitted to a PET bottle through a spreading means, and FIG. 2B is a sectional plan view showing a state where the label is attached to the PET bottle.

FIG. 3 shows each step of mounting the stretch label on the PET bottle, (a) is a perspective view before inserting the expanding means into the label, and (b) is inserting the expanding means into the label. The perspective view which shows the state which expanded the diameter of a label.

FIG. 4 is a perspective view showing each step of mounting the stretch label on the PET bottle, and (a) is a perspective view showing a state where the PET bottle is inserted into the expanded stretch label;
Is a perspective view showing a state in which the expanding means is removed from the label,
(C) is a perspective view of a PET bottle with a stretch label attached.

5A and 5B show another embodiment of the present invention, in which FIG. 5A is a perspective view of a stretch label, and FIG. 5B is a perspective view showing a state in which the stretch label is expanded by the expanding means.

6A and 6B show another embodiment of the present invention, in which FIG. 6A is a perspective view including a partially broken stretch label, and FIG.

FIG. 7 shows another embodiment of the present invention, including (a) and (b).
Is a perspective view of a stretch label.

[Explanation of symbols]

1 ... PET bottle (container), 5 ... Stretch label, 8
… Stretch film, 10… Anti-slip layer (anti-slip means), 14… Expansion means

Claims (3)

[Claims] 1. A stretch film (8) having a self-elastic contraction force is formed in a tubular shape, and the stretch film is inserted through the tubular stretch film (8) through an expandable and retractable expanding means (14). In a stretch label to be fitted onto a container (1) in a state where a film (8) is expanded, the expansion means (1) is an inner surface of the stretch film (8).
A stretch label characterized by being provided with a slip prevention means (10) for preventing slippage with the container (1) in a portion expanded in diameter by 4). 2. A method of attaching a stretch label, wherein a stretch label (5) having a cylindrical self-elastic contraction force is externally attached to the container (1), the container (1) being attached to the inner surface of the stretch label (5). 1) A non-slip means (10) for preventing slippage is provided to expand and contract the expansion means (14).
After inserting the stretch label (5) into the stretch label (5), the expansion means (14) expands the slip prevention means (10) of the stretch label (5) to expand the stretch label (5). A method of attaching a stretch label, which comprises fitting the container (1) in a closed state. 3. The method of mounting a stretch label according to claim 2, wherein the stretch label (5) is spread by the spread means (14) while covering the slip prevention means (10).