KR20230001752A - Film comprising cutting line and pressed lines - Google Patents

Abstract

The present invention relates to a film including a dotted line and a creasing line. More specifically, according to the present invention, the film does not burst during distribution even if a creasing line is formed on the dotted line to improve tearability. The present invention relates to the film, which includes a pair of dotted lines and a pair of creasing lines. The dotted line and creasing line are formed on both ends of the film, and the creasing lines are formed outside the dotted lines.

Description

Film comprising cutting lines and pressed lines

The present invention relates to a film including a perforation line and a crease line, and specifically, the film according to the present invention does not break during distribution even if a crease line is formed on the perforation line to improve tearability.

PET bottles made of polyester (hereinafter referred to as 'PET') are used as various containers that are very important in human life today. Since PET bottles are mostly disposable and discarded, collecting and recycling used bottles is very important for environmental protection and resource saving.

Worldwide, the recycling rate of PET bottles is known to be about 60%, and 40% of PET resources are being discarded, and discarded PET bottles are pointed out as a major cause of environmental pollution. In the bottle, a PET bottle with a rugged panel structure was developed.

Despite the development of a PET bottle with a panel structure applied as described above, the recycling rate is significantly lowered due to the label (film) attached to the PET bottle, leading to a recycling crisis of PET resources.

In order to solve the above problems, the Ministry of Environment has recently prepared an amendment to the related notice to ensure that the material and structure of packaging materials such as PET bottles are designed to be easily recycled.

However, although labels are developed in various ways to increase the recycling rate of PET bottles, there is still a problem in that the label bursts because the air inside the label cannot escape due to impact during distribution due to the unique structure of the PET bottle.

Therefore, a solution to the above problem is urgently needed.

Korean Patent Registration No. 10-1500637

Accordingly, the present inventors studied to solve the phenomenon of label bursting due to the impact of the label (film) during distribution due to the panel structure, and prevented the bursting phenomenon during distribution when perforated lines were formed in the label. It was intended to use a perforated line as a perforation line so that the label could be easily separated and collected to solve the environmental protection problem.

However, since the existing perforated line was sufficient if the air inside the label escaped well, it was irrelevant even if the gap was wide.

In particular, the tearability of the label improved as the vertical perforation interval became narrower. However, since the tension of the film between the perforations weakened as the perforation interval became narrower, the label burst phenomenon occurred due to impact during distribution. It was confirmed that there was a tendency to tear horizontally rather than vertically.

Therefore, in order to improve tearability, a double perforation line, that is, a four-line perforation line was formed next to the perforation line, but the label burst phenomenon occurred during impact due to the increased number of perforations. By specifying the perforation and pressurized lines of the label, a label was developed that improves tearability and does not cause label bursting during distribution.

Therefore, the present invention as a problem to solve is to provide a film including a perforation line and a crimping line that does not burst during distribution of a film formed with a perforated line with low tearability even if a crimped line is formed at the perforated line to improve tearability. do.

In order to solve the above problems, the present invention discloses the following means.

In one aspect, a pair of perforations; and a pair of crease lines, wherein the perforation line and the crease line are formed at both ends of the film, and the crease line is formed outside the perforation line.

In one aspect, a film characterized in that a pair of perforations are disposed facing each other is disclosed.

In one aspect, a pair of perforated lines are disposed facing each other at intervals of 10 to 20 mm, characterized in that the film is disclosed.

In one aspect, the perforated line discloses a film characterized in that two or more perforated portions having a diameter of 0.15 to 1.5 mm are formed.

In one aspect, a film is disclosed wherein at least two cuts are arranged at intervals of 0.15 to 2.5 mm.

In one aspect, the pair of pressure lines discloses a film characterized in that disposed facing each other.

In one aspect, the pair of crease lines discloses a film, characterized in that disposed facing each other at intervals of 15 to 25 mm.

In one aspect, the pressure line discloses a film characterized in that two or more pressure portions having a diameter of 0.15 to 1.0 mm are formed.

In one aspect, a film characterized in that two or more pressing parts are arranged at intervals of 0.3 to 1.5 mm is disclosed.

In one aspect, a film is disclosed wherein each perforation line and crease line are spaced apart at intervals of 1 to 3.5 mm.

In the film according to the present invention, even if a pair of pressure lines are formed on the outside of the perforation line to improve tearability, the label having the perforation line having low tearability does not break during distribution.

Effects of the present invention are not limited to the effects mentioned above, and various effects may be included within a range apparent to those skilled in the art from the contents to be described below.

1 is a view for explaining a film according to the present invention.
Figure 2 shows that the starting point is printed on the film according to the present invention.
Figure 3 shows the tear test results of the film according to Comparative Example 1 of the present invention.
Figure 4 shows the tear test results of the film according to Comparative Example 1 of the present invention.
Figure 5 shows the test results of the peelability of the film according to the present invention.
Figure 6 shows the box drop test results of the film according to the present invention.
7 shows the box drop test results of the film according to Comparative Example 2 of the present invention.
8 shows a portion where the film according to the present invention is applied to a container.

Hereinafter, the present specification will be described in more detail.

A detailed description of this is as follows. Meanwhile, each description and embodiment disclosed in the present invention may also be applied to other descriptions and embodiments for each. That is, all combinations of the various elements disclosed herein fall within the scope of the present invention. In addition, it cannot be seen that the scope of the present invention is limited by the specific descriptions described below.

Expressions such as “comprising” used in this specification are understood as open-ended terms that include the possibility of including other embodiments, unless specifically stated otherwise in a phrase or sentence in which the expression is included. It should be.

Hereinafter, it will be described in detail with reference to the drawings so that those skilled in the art can easily carry out the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments or drawings described herein. Like reference numerals have been assigned to like parts throughout the specification.

film

Currently, the label (film) includes a pair of perforation lines, and since perforation cannot function as a perforation line if the perforation interval is wide, the feature is that the perforation interval is narrowed to facilitate perforation.

However, the tearability of the label was improved as the vertical perforation interval became narrower. However, since the tension of the film between the perforations was weakened as the perforation interval became narrower, there was a problem in that the label burst due to impact during distribution, and appropriate Due to the characteristics of the perforated film, labels tend to tear horizontally rather than vertically, so labels that do not break during distribution have not yet been developed.

Accordingly, the inventors of the present invention formed a perforation line and a pressure line on the label to specifically specify the perforation line and the pressure line, thereby completing a label that does not cause the label to burst during distribution.

1 is a view for explaining a film according to a preferred embodiment of the present invention.

Referring to Figure 1, a film according to an embodiment of the present invention will be described.

A film according to an embodiment of the present invention is composed of a pair of perforated lines formed on both sides and a pair of pressurized lines disposed outside each of the perforated lines.

In the present invention, the film means to wrap a container or to configure a label, etc., and use it by fixing both ends using an adhesive, etc., and is wound to be attached to the outer surface of the container in the form of a strip, and both ends of the film It can be used by attaching using an adhesive or the like.

In the present invention, the film is provided with a pair of perforation lines and a pressure line, respectively, and in particular, tearability can be improved by including a pair of pressure lines.

In the present invention, the perforation line is cut when tearing the film and serves to tear the film.

로 표시되는 2 이상의 절취부로 구성되어 있고, 한쌍의 누름선은

로 표시되는 2 이상의 누름부로 구성되어 있다.In the present invention, a pair of perforated lines

It consists of two or more cuts indicated by , and a pair of creases

It consists of two or more pressing parts indicated by .

)가 형성되어 있는 것이고 (도 1에서 ①로 표시한 부분), 구체적으로는 0.3 내지 1.0 mm의 직경을 갖는 2 이상의 절취부(

)가 형성되어 있는 것일 수 있다.In the present invention, the perforated line is two or more cuts having a diameter of 0.15 to 1.5 mm (

) is formed (the part indicated by ① in FIG. 1), specifically two or more cutouts having a diameter of 0.3 to 1.0 mm (

) may be formed.

)가 2 이상 형성되어 있을 수 있고, 이에 한정되는 것은 아니다.In the present invention, when the perforation line is pulled, the cutout portion is perforated to be cut in the width direction (vertical direction) (

) may be formed of two or more, but is not limited thereto.

)는 모두 동일한 직경의 크기로 타공되어 있거나, 교차하여 다른 직경의 크기로 타공되어 있을 수 있고, 이에 한정되는 것은 아니다.In the present invention, two or more cutouts (

) may be all perforated with the same diameter size, or may be perforated with different diameter sizes crossing each other, but are not limited thereto.

For example, when the cutouts are formed in the order of the first cutout, the second cutout, the third cutout, and the fourth cutout in the width direction, the first cutout, the second cutout, the third cutout, All of the fourth cutouts may have the same diameter, or the first cutout, the third cutout, the second cutout, and the fourth cutout may have different diameters.

)는 0.15 내지 2.5 mm 간격으로, 바람직하게는 0.3 내지 2.0 mm 간격으로 배치되어 있을 수 있으며 (도 1에서 ②로 표시한 부분), 이에 한정되는 것은 아니다.In the present invention, two or more cutouts (

) may be arranged at intervals of 0.15 to 2.5 mm, preferably at intervals of 0.3 to 2.0 mm (parts indicated by ② in FIG. 1), but are not limited thereto.

In the present invention, the pair of perforation lines are disposed facing each other, specifically, the pair of perforation lines face each other at intervals of 10 to 20 mm, preferably at intervals of 12 to 16 mm, and more preferably at intervals of 15 mm. It may be arranged (the part indicated by ③ in FIG. 1), but is not limited thereto.

In the present invention, the press line means that it is formed by pressing as its name indicates. Specifically, the crease line may be formed by pressing the film with a known perforation forming method widely known in the art. However, the crease line forming cutter uses a blade shorter in length than a blunt blade or perforation line forming cutter so that the film is not perforated and a pressed-shaped crease line is formed.

Specifically, when a pair of pressure lines are included, the portion between the pair of pressure lines protrudes in an arch shape, and the protrusion facilitates tearing based on the perforation line, and minimizes the impact of the inner space of the film and the container, It has the effect of improving tearability when separating the container and the label film by dispersing the impact.

)가 형성되어 있는 것이고 (도 1에서 ④로 표시한 부분), 특히 한쌍의 누름선을 포함함으로써 뜯김성을 개선할 수 있는 이점이 있다.In the present invention, the pressure line is 0.15 to 1.0 mm, preferably two or more pressing parts having a diameter of 0.3 to 0.8 mm (

) is formed (the part indicated by ④ in FIG. 1), and in particular, there is an advantage in that tearability can be improved by including a pair of pressure lines.

)는 0.3 내지 1.5 mm, 바람직하게는 0.5 내지 1.0 mm 간격으로 배치되어 있을 수 있고 (도 1에서 ⑤로 표시한 부분), 이에 한정되는 것은 아니다.In the present invention, two or more pressing parts (

) may be arranged at intervals of 0.3 to 1.5 mm, preferably 0.5 to 1.0 mm (part indicated by ⑤ in FIG. 1), but is not limited thereto.

In the present invention, the pair of pressure lines are disposed facing each other, specifically, the pair of pressure lines may be disposed facing each other at intervals of 15 to 25 mm, preferably at intervals of 18 to 21 mm, , but is not limited thereto.

In the present invention, each perforation line and crease line may be spaced apart at intervals of 1 to 3.5 mm, preferably at intervals of 1.5 to 3 mm (parts indicated by ⑥ in FIG. 1), limited to this no.

In the present invention, the starting point for guiding the consumer to the cutting point is printed on the film (see FIG. 2), and the printed starting point is not shaped, for example, while being spaced apart at regular intervals. Anything is acceptable as long as it is marked with a certain pattern so that consumers can recognize that the printed part is the starting point.

Example

Example 1. Preparation of label film

Product information is printed on the surface of transparent resin films such as OPS and PET. After winding the printed film on the label making device, it is passed between interlocking rollers by moving the process. At this time, a pair of cutters that can simultaneously form a perforation line and a crease line coupled to the upper perforation roller rotate and press to form a perforation line and a crease line on both ends of the film. Thereafter, an adhesive is applied to both ends of the film and bonded to each other to produce a label film in the form of a cylindrical semi-processed product.

The manufactured label film has a pair of perforation lines (consisting of two or more cutouts with a diameter of 0.3 to 1.0 mm, the cutouts are arranged at intervals of 0.3 to 2.0 mm, and a pair of perforation lines are placed facing each other at intervals of 15 mm) based on the amount On the outside, a crimping line (consisting of two or more pressing parts with a diameter of 0.3 to 0.8 mm, the pressing part is arranged at intervals of 0.5 to 1.0 mm, and a pair of creasing lines are arranged facing each other at an interval of 18 to 21 mm) is formed ( Perforations and creases are spaced apart at intervals of 1.5 to 3 mm).

comparative example

Comparative Example 1. Preparation of label film

A label film was manufactured in the same manner as in Example 1, except that a pair of creases were not included.

Comparative Example 2. Manufacturing of label film

A label film was manufactured in the same manner as in Example 1, except that a double perforation line (four perforation lines) was formed at a pair of crease positions.

Experimental example

1. Label tearability test

A label tearability test was performed on the film manufactured according to the embodiment of the present invention and the film manufactured according to Comparative Example 1.

3 and 4 show the label tearability test results of the film prepared according to Comparative Example 1.

Referring to FIGS. 3 and 4 , it was confirmed that the label film of Comparative Example 1 contained only the perforation line and did not include the crease line, so that tearing occurred in the middle, thereby limiting tearability.

Figure 5 shows the label tearability test results of the film manufactured according to an embodiment of the present invention.

Referring to FIG. 5, it was confirmed that tearing property was improved upon separation of the container and the label film by further including a pair of pressure lines.

2. Box drop test

A box drop test was performed on the film prepared according to the Example of the present invention and the film prepared according to Comparative Example 2 to confirm label breakability.

Specifically, after the 20-piece beverage box to which the label film manufactured according to the embodiment of the present invention was applied was subjected to free fall 3 times from a height of 1.2 m, it was confirmed whether the label film was damaged due to impact, and the results were helpful. 6 and 7.

Referring to FIG. 6, in the film manufactured according to the embodiment of the present invention, despite the fact that the other space of the perforation line is narrower than before, when an external impact is applied, the pressure wave applied to the film between the perforations of the perforation line is It was confirmed that the breakage of the label film did not occur at all by mitigating.

However, referring to FIG. 7, in the case of the film prepared according to Comparative Example 2, a perforated perforation line is further included instead of a crease line, so that when an external impact is applied, the shock is transmitted to the film between the perforated perforations of the relatively weak tension It was confirmed that the damage range of the shape where the perforation line was cut was widened.

Therefore, according to Experimental Examples 1 and 2, when the film of the present invention is applied to an actual beverage container, as shown in FIG. A bursting phenomenon may not occur during distribution of the formed label, and by marking the starting point at a portion marked in yellow, it is possible to provide easy tearability by guiding consumers to a cutting point.

Since specific parts of the present invention have been described in detail above, it is clear that these specific techniques are merely preferred embodiments for those skilled in the art, and the scope of the present invention is not limited thereto. Accordingly, the substantial scope of the present invention will be defined by the appended claims and their equivalents.

Claims (10)

a pair of perforations; and
Including a pair of pressure lines,
Perforation lines and crease lines are formed on both ends of the film,
A film in which the crease line is formed outside the perforation line. According to claim 1,
A film characterized in that a pair of perforated lines are disposed facing each other. According to claim 2,
A film characterized in that a pair of perforated lines are disposed facing each other at intervals of 10 to 20 mm. According to claim 1,
A film characterized in that the perforated line is formed with two or more perforated portions having a diameter of 0.15 to 1.5 mm. According to claim 4,
A film characterized in that two or more cuts are arranged at intervals of 0.15 to 2.5 mm. According to claim 1,
A film, characterized in that the pair of pressure lines are disposed facing each other. According to claim 6,
A film characterized in that the pair of pressure lines are disposed facing each other at intervals of 15 to 25 mm. According to claim 1,
A film characterized in that the pressure line is formed with two or more pressure portions having a diameter of 0.15 to 1.0 mm. According to claim 8,
A film characterized in that two or more pressing parts are arranged at intervals of 0.3 to 1.5 mm. According to claim 1,
A film characterized in that each perforated line and crease line are spaced apart at intervals of 1 to 3.5 mm.

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