JP3336499B2 - Roll label for whole circumference - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an all-round roll label applicable to various labeling machines.

[0002]

2. Description of the Related Art In general, an all-around-wound label is provided with adhesiveness on the back surface of the label, affixed to the peripheral surface of the container in order from the starting end of the label, and affixing the end of the label to the starting end. Recently, recycling of used containers such as PET bottles has been proposed from the viewpoint of environmental problems. When recycling the container, it is necessary to peel off the label.

[0003]

However, the above-described label sticking technique has the following problems. <A> Since the label is firmly adhered to the peripheral surface of the container via the adhesive, it is difficult to peel off and remove the label. Particularly when the label is made of paper, it is extremely difficult to peel the label easily and cleanly.

<B> In order to enhance the releasability of the label, it is conceivable to use an adhesive having a low adhesive strength. Although this method is useful for improving the releasability of the label, it has a problem that the overlapped portion of the label is inadvertently peeled off during the distribution process of the product. As described above, in the conventional sticking technique, the adhesiveness and the peelability of the label are in conflict with each other, and it is not possible to satisfy both properties at the same time.

<C> As a label that does not use an adhesive, a tubular label having a seamless structure to be packaged in a container is known. This type of tubular label is more expensive than a sheet label, and because there are no sticking points at both ends of the label, the label must be cut off and removed. In the case of a soft container, there is a risk of damaging the container body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a label for all-around winding which can simultaneously satisfy the adhesiveness and peelability of the label. is there. Still another object of the present invention is to provide a full-wrap label which can be applied to all kinds of labeling machines.

[0007]

That is, the invention according to claim 1 is a roll label obtained by winding a tape-shaped label material around a roll, and cutting the label material drawn from the roll into a sheet-shaped label material. After the back end of the sheet-like label is bonded to the peripheral surface of the container, the label is wound around the peripheral surface of the container, and the rear end of the label with the adhesive property is superimposed on the front surface of the label and attached. In the roll label for the entire circumference, on the back surface of the tape-shaped label material, over the entire length thereof, at a position excluding the back surface end of the label to be manufactured, it has adhesiveness to the adhesive before curing, and has the cured adhesive. forming a hard-to-bond layer having a release property to agent
In addition, the container adhesive layer is formed by previously laminating the container adhesive layer on the hard adhesive layer . The invention according to claim 2 is the claim
The roll label according to 1 , wherein the container adhesive layer is a heat-sensitive or pressure-sensitive adhesive. Claim 3
In the roll label according to claim 1 or 2, a label adhesive layer is formed on the back surface of the tape-shaped label material over the entire length thereof at the back end position of the label to be manufactured, and Volume laminated on adhesive layer and poor adhesive layer
And a container adhesive layer formed alternately. Claim
The invention according to a fourth aspect is the roll label according to the third aspect , wherein the label adhesive layer is a heat-sensitive or pressure-sensitive adhesive.

[0008]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

<A> Roll Label In FIG. 1, reference numeral 10 denotes a container made of a material such as paper, resin, glass, and pottery. Reference numeral 20 denotes a label for the entire circumference, which is manufactured by continuously pulling out a tape-shaped label material from a roll label mounted on a labeling machine and cutting it immediately before sticking. The label material is made of a known material such as paper and resin (including heat shrinkable resin). The sheet-like label 20 is set to have a slightly longer dimension than the outer periphery of the container 10 so that the start and end of the label can be overlapped and applied.

FIG. 2 shows a part of the label material of the roll label as viewed from the back side. Since a roll label can be regarded as a continuous body of a plurality of labels 20, one label 20 after cutting will be described, and detailed description of the continuous body will be omitted.

In the present invention, it is sufficient that the hard-adhesion layer 22 is formed at least at a position corresponding to the starting edge (the direction of travel of the label material) of the back surface 21 of the label 20. In the label material before cutting, the hard-adhesion layer 22 is formed at the pitch at which the label 20 is formed.

The container adhesive layer 23 is formed on the hard adhesive layer 22 by lamination. A label adhesive layer 24 is formed on the terminal edge of the back surface 21. Label adhesive layer 24 is difficult to install adhesive layer 2
When the label material is formed in advance in the same manner as in step 2, the difficult adhesive layer 22 and the label adhesive layer 24 are formed adjacent to the label material, and these two layers 22 and 24 are formed at the pitch at which the label 20 is formed. You.

<B> Difficult-to-Adhesive Layer The difficult-to-adhesive layer 22 is formed by directly adhering an ultra-thin resin film or the like to the label material, or by applying a hard-adhesion treatment such as printing a soft-melting fluororesin or the like. .

The hard-adhesive layer 22 only needs to be surface-treated so as to have adhesiveness to the adhesive in a molten state and to be easily peeled off from the cured adhesive.

In this example, the case where the label 20 is formed continuously in the width direction is shown. However, the label 20 is formed in a partial area in accordance with the formation area of the container adhesive layer 23, or formed on the entire surface excluding the label adhesive layer 24. May be.

<C> Adhesive Layer The container adhesive layer 23 and the label adhesive layer 24 are portions provided with an adhesive property, and various known adhesives and pastes including a heat-sensitive or pressure-sensitive adhesive are applied by applying means or printing means. It is formed.

FIG. 3 shows a cross section of the label start end.
(A) presupposes a roll label on which the hard-adhesive layer 22 is formed in advance, and applies an adhesive to the hard-adhesive layer 22 of the label 20 cut and manufactured in the transfer process of the labeling machine to form the container adhesive layer 23. Here is an example.

FIG. 1B shows an example in which a container adhesive layer 23 is formed in advance on a label material of a roll label together with a difficult adhesive layer 22. In the case of this example, the container adhesive layer 23 is made of a heat-sensitive or pressure-sensitive adhesive.

The label adhesive layer 24 is formed on the back surface 21 of the label 20.
Formed directly at the end of The label adhesive layer 24 is formed in the transfer process of the labeling machine, or, similarly to the container adhesive layer 23, is formed in advance on a label material of a roll label with a heat-sensitive or pressure-sensitive adhesive.

<D> Regarding adhesiveness and peelability of label In the past, in order to securely adhere the label to the container, a high adhesiveness was applied to the beginning and end of the label.

On the other hand, according to the present invention, the overlapped portions at both ends of the label 20 are provided with high adhesiveness and adhered.
A suitable adhesiveness and releasability were combined between the beginning of the back surface 21 and the container 10.

As a means for making the adhesive property and the peeling property coexist at the beginning of the back surface 21 of the label 20, a laminated structure in which a container adhesive layer 23 is formed via a hard adhesive layer 22 is adopted. That is, while securing a proper adhesiveness based on the high adhesiveness of the container adhesive layer 23 itself, peeling between the two layers 22 and 23 after the container adhesive layer 23 is cured based on the poor adhesiveness of the hard adhesive layer 22. Property can be imparted.

It is apt to think that the use of an adhesive having a low adhesive performance will reduce the peeling force between the label and the container. However, this low adhesiveness is a performance before the adhesive is cured, and When the agent cures, the label is firmly adhered to the container, resulting in poor releasability of the label. In addition, when an adhesive having low adhesive performance is used, there is a problem in that a sufficient adhesive force cannot be secured when the label start end is attached to the container, and the label cannot be wound.

By forming a container adhesive layer 23 having high adhesiveness on the starting end of the label 20 via the hard adhesive layer 22, peeling after curing of the adhesive while securing appropriate adhesiveness at the starting end of the label 20. Nature can be secured. In other words, the adhesive force (temporary adhesive force) that does not allow the label 20 to slide between the start end of the label 20 and the container 10 only for a short time until the overlapping of the edges of the label 20 is completed.

[0025]

Next, a method of attaching the label 20 will be described.

<A> Attachment of label start end A tape-shaped label material is continuously pulled out from a roll label mounted on a labeling machine (not shown), and cut into a predetermined label size by a cutter (not shown). Each of the labels 20 cut and manufactured is transferred to the sticking stage in a state where the label 20 is suctioned negatively on the peripheral surface of the sticking drum. In the course of the transfer, adhesiveness is given to each of the adhesive layers 23 and 24 formed at the start and end of the back surface 21 of the label 20 in the width direction. The adhesiveness is provided by applying an adhesive, heating, or the like. The container 10 is transferred to a sticking stage by a screw conveyor or the like.

When the start ends of the container 10 and the label 20 reach the application stage, the container adhesive layer 23 at the start end of the label 20 is attached to the peripheral surface of the body 11 of the rotating container 10 as shown in FIG.

The container adhesive layer 23 adheres to the peripheral surface of the container 10 with a high adhesive force, and also maintains an adhesive state to the hardly adherent layer 22 with an appropriate adhesive force. Since the start end of the back surface 21 of the label 20 is temporarily bonded to the container, the label 10 after the start end winds around the peripheral surface of the body 11 of the container 10 which rotates sequentially.

<B> Attachment of Label End As shown in FIG. 5, in the state where the starting end of the label 20 is temporarily adhered to the peripheral surface of the container 10 with the laminated body of the hard adhesive layer 22 and the container adhesive layer 23, The end of the back surface 21 of the label 20 is the front surface 25
Of the label adhesive layer 24, the label adhesive layer 24
To complete the entire winding of the label 20.

Since both ends of the label 20 are firmly adhered through the label adhesive layer 24, both ends of the label 20 do not peel off during the distribution process of goods.

<C> Peeling of the label As described above, both ends of the label 20 are securely bonded via the label adhesive layer 24. However, the distance between the starting end of the label 20 and the peripheral surface of the container 10 is Is in a state where it is easily peeled off from the hard-to-adhesive layer 22 with the curing.

Therefore, for the purpose of recycling the container 10, the label 20 is removed from the container 10 simply by cutting off a part of the cylindrical label 20 or peeling off the overlapping portions at both ends of the label 20 to form a sheet. Can be easily peeled. The label 20 peels off between the hardened container adhesive layer 23 and the hardened adhesive layer 22 only by applying a small peeling force.

FIG. 6 shows the state of the container 10 after the label has been peeled off. The container adhesive layer 23 remaining on the peripheral surface of the container 10 is
What is necessary is just to remove with a solvent etc.

[0034]

[Embodiment 2] In Embodiment 1 described above, a case was described in which a laminated body of the hard adhesive layer 22 and the container adhesive layer 23 was formed at the starting edge of the back surface of the label 20, but the embodiment shown in FIG. It may be formed.

7A shows the case where the laminate is formed on the upper and lower edges of the label 20, B shows the case where it is formed on the starting end and upper and lower edges of the label 20, and C shows the case where the laminate is dotted on the back surface of the label 20. This is shown. The form of formation of the laminate is a container 10
The selection may be made in consideration of the purpose of use.

[0036]

According to the present invention, the following effects can be obtained. <B> By forming a hard-adhesive layer on the back of the label material that constitutes the roll label and laminating the container-adhesive layer on this hard-adhesive layer, it is possible to apply labels that have been considered difficult to achieve. Can be simultaneously provided with the properties of both the adhesiveness of the adhesive and the peelability between the label and the container after curing of the adhesive.

<B> Even if the roll label is made of paper that is easily broken, it can be removed without leaving it in the container.

<C> Although a cylindrical label having a seamless structure is expensive, a roll label made of a low-cost material can be attached with almost the same structure.

<D> Not only can it be applied to all kinds of label materials such as paper, resin and heat-shrinkable resin, but also can be applied to various known labeling machines equipped with roll labels. In particular, if a roll label is manufactured using a heat-sensitive or pressure-sensitive adhesive for the adhesive layer, there is no need to improve the machine.

<E> The difficult-to-adhesion layer requires only a simple process of applying a poor-adhesion treatment to the back surface of the label, and the roll label can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is an explanatory view according to Embodiment 1 of the present invention, and is a perspective view of a container when a label is attached.

FIG. 2 is a front view of the back side of the label material.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is a cross-sectional view of a bonding portion between a label start end and a container.

FIG. 5 is a cross-sectional view of the overlapped portion where both ends of the label are attached.

FIG. 6 is a sectional view of the container after the label is peeled off.

FIG. 7 is a front view of the back side of the label showing another label example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Container 20 Label 21 Back side of label 22 Difficult adhesion layer 23 Container adhesion layer 24 Label adhesion layer 25 Label surface

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-60-183343 (JP, A) JP-A-5-46095 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 23/00 B65D 25/20 G09F 3/10

Claims (4)

(57) [Claims] 1. A roll label in which a tape-shaped label material is wound on a roll, the label material drawn from the roll is cut to produce a sheet-shaped label, and the back surface of the sheet-shaped label is formed on the peripheral surface of the container. after bonding the starting end, wrapping the label on the peripheral surface of the container, all around the winding roll label affixed to the back side end of the label imparted with adhesiveness is polymerized on the surface starting end of the label, the tape-shaped label stock over its entire length on the rear surface, in a position excluding the back side end of the production plan label, which has an adhesive property to the adhesive before curing, to form a flame-adhesive layer having a release property to the cured adhesive A roll label for full-circle winding , wherein a container adhesive layer is preliminarily laminated on the hard adhesive layer . 2. The roll label according to claim 1, wherein the container adhesive layer is a heat-sensitive or pressure-sensitive adhesive . 3. The roll label according to claim 1 or 2 , wherein the entire surface of the tape-shaped label material is
Label the label to be manufactured over the long
An adhesive layer was formed, and the label adhesive layer and the hard-adhesive layer were laminated.
A roll label for full circumference winding, characterized by alternately forming a container adhesive layer . 4. The roll label according to claim 3 , wherein the label adhesive layer is a heat-sensitive or pressure-sensitive adhesive .