JPH09190917A - Marker continuous body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable for a marker to be adhered to a to-be-adhered object on a fast line without making the marker leave a tape base material by making a to-be-detected body contained in the marker, its existence direction being identical with adhesion direction and still consecutive, being amorphous metal fiber having circular section, clamped between the upper surface tape and the bottom surface tape. SOLUTION: A to-be-detected body 1 is present in the direction identical with marker's adhesion direction, and an amorphous metal fiber having a circular section, for example a soft magnetism metal material showing large Barkhausen jump, is used. The to-be-detected body 1 is a continuous marker continuous body 6, and the to-be-detected body 1 is sandwiched between an upper surface tape and a lower surface tape. In short, the upper surface tape 2 containing an adhesive layer 3 holds the to-be-detected body 1 as a marker together with the lower surface tape 4, and, an adhesive layer 5 which is the lower part of the lower surface tape 4 fixes the marker to a to-be-adhered object. As the upper surface tape and the lower surface tape 4 containing the adhesive layer 3 and the adhesive layer 5, respectively, a pressure sensitive adhesion tape on which a pressure sensitive adhesive agent is applied is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marker continuous body which is used in an article monitoring system or a marker monitoring system and has stable detection performance when a label is attached in a factory.

[0002]

2. Description of the Related Art In retail stores such as supermarkets, the installation of anti-theft systems has become widespread, and products with a label-like marker attached tend to be taken out of the store illegally due to shoplifting. At this time, it is detected by a detection system such as an anti-theft system and the theft can be prevented.

On the other hand, conventionally, a label sticking device has been used for sticking a general print label to a bottle or a box in a factory. The label used in the label sticking device was one in which the labels were punched and separated one by one due to the limitation of the label sending method of the label sticking device, and lined up on the release paper. Therefore, the production line speed that can be handled was as low as 40 m / min at the most in terms of label sticking property. By using the same label affixing device, the label-like markers in a state of being punched one by one and separated and lined up on the release paper are being applied in the factory. As the label-like markers that are punched one by one and separated, and lined up on the release paper, there is a marker as shown in Japanese Patent Laid-Open No. 61-153799, and the marker is used in the detection system. The object to be detected is contained. Such a label-like marker is attached to a product on a production line in a factory. Due to the morphological characteristics of this label-like marker, the applicable production line speed that can be attached is 40 m / min at most. .

However, as the sticking of markers on the production line in the factory becomes widespread, the sticking of markers on a higher speed line of 40 m / min or more is required, and the labels are separated one by one on the release paper. It has become impossible to cope with the above-mentioned markers arranged side by side. Therefore, as a solution to the above problems, EP Patent Publication 067
No. 3007 discloses a tag attached to an item in order to detect the presence of the item. It has a first side coated with a pressure sensitive adhesive composition and a first side coated with a release agent.
In the form of a pressure sensitive adhesive tape having a second surface opposite the surface of the tape, the tape comprising a continuous substrate of synthetic resin material,
And a continuous electromagnetic sensor material detectable by a detector. That is, this tag material
This is a structure in which an electromagnetic sensor material, that is, an object to be detected is bonded to one sheet of pressure-sensitive adhesive tape, and this marker can automatically and inexpensively and quickly attach a tag to an item with a source. It was When the object to be detected is a thin flat metal material as disclosed in EP Patent Publication 0673007, it was possible to attach the object to the article by using the marker having the above-mentioned configuration.

[0005]

On the other hand, an amorphous metal fiber having a circular cross section has high detection performance and is less likely to be erroneously detected. Therefore, it is a preferable material for a detection object. Therefore, the inventors of the present invention have bonded a pressure-sensitive adhesive tape with an amorphous metal fiber having a circular cross section, and a marker in which a detected object having the same shape as the tag material disclosed in EP Patent Publication 0673007 is continuous. The amorphous metal fiber having a circular cross section has a wire diameter of 60 to 150 μm, is thicker than a ribbon material metal material having a plate thickness of 10 to 30 μm, and further has a circular cross section. When the continuous marker is wound on the paper tube, the contact point becomes smaller when it is attached to the paper core, and the amorphous metal fiber having a circular cross section becomes slack and easily separates from the pressure-sensitive adhesive tape and separates. There was a problem that the amorphous metal fiber in the part that was broken was bent or bent. Therefore, when a continuous marker is cut for sticking to an item, the amorphous metal fiber is completely detached, and it becomes impossible to stick to the item as a marker, or a marker containing an amorphous metal fiber in the item is present. Even if it could be attached, there were many cases in which the detected performance was significantly reduced, and there was a problem in terms of stability of the detected performance.

That is, in a continuous marker using an amorphous metal fiber having a circular cross section which is excellent in the detection performance in the detection system and has few false detections, the amorphous metal having the circular cross section which is the detection target is used. It was necessary to prevent the fibers from separating from the tape base material and prevent the deterioration of the detected performance. INDUSTRIAL APPLICABILITY The present invention enables a marker to be efficiently adhered to an adherend even at a high-speed production line of 40 m / min or more. It is an object of the present invention to provide a marker continuum that can be prevented from coming off and that can provide stable detected performance.

[0007]

Means for Solving the Problems As a result of earnest studies to solve such a problem, the inventors have found that the direction in which a detected object included in a marker is present is the same as the sticking direction.
And a marker continuum in which the detected body is continuous, the detected body is an amorphous metal fiber having a circular cross section,
By sandwiching the object to be detected between the upper surface tape and the lower surface tape, the marker can be efficiently adhered to the adherend even on a high-speed production line of 40 m / min or more, and the object to be detected can be detected. The present invention has been accomplished by finding the fact that the amorphous metal fiber having a circular cross section, which is the body, does not separate from the tape base material and the detected performance is very stable. That is, the present invention is a marker continuum in which the direction in which the detection target included in the marker exists is the same as the sticking direction, and the detection target is continuous, and the detection target has a circular cross section. The gist of the present invention is a marker continuum, which is an amorphous metal fiber and in which the object to be detected is sandwiched between an upper surface tape and a lower surface tape.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. A detection system such as an article monitoring system normally generates an exciting magnetic field between two panels, and when a detection target passes through the detection area, a signal is detected by a detection coil, and an alarm or other method is used. Such an article monitoring system is a system for informing the surroundings, and is usually called an antitheft system, and is mainly used in retail stores such as supermarkets to prevent shoplifting. The marker monitoring system is a system that determines the presence or absence of a marker and gives a feedback signal to the subsequent process. The marker continuum of the present invention can be used in such a system.

FIG. 1 is a sectional view showing an example of a marker continuum 6 of the present invention. In FIG. 1, the detected object 1 needs to be present in the same direction as the sticking direction of the marker. Further, it is necessary to use amorphous metal fibers having a circular cross section as the detected body 1, and for example, a soft magnetic metal material exhibiting a large Barkhausen jump is used. As an alloy system of amorphous metal fibers having a circular cross section, a cobalt or iron system amorphous metal material is preferable, and a Co-Fe-Si-B system, Co-F system is used.
e-Ni-Si-B system, Co-Fe-Mo-Mn-Si
-B-based, Co-Fe-Ni-Mo-Si-B-based cobalt-based amorphous metal materials or Fe-Si-B
It is more preferable to use a Fe-Mo-Si-B-based iron-based amorphous metal material. Furthermore, Co _88.1 Fe
_4.4 Si _4.4 B _3.1 , Co _47.3 Fe _44.8 Si
_5.0 B _2.9 , Co _38.6 Fe _7.6 Ni _44.5 Si
_7.3 B _2.0 , Co _84.0 Fe _1.4 Mo _1.7 Mn _4.1 Si _6.9
B _1.8 , Co _82.9 Fe _4.4 Ni _1.6 Mo _2.5 Si _6.3 B
Cobalt-based amorphous metal material or Fe _92.2 Si _4.3 B having an alloy composition such as _2.4 (number represents weight%)
It is most preferable to use an iron-based amorphous metal material having an alloy composition of _3.5 , Fe ₄₀ Ni ₃₇ Mo ₅ B _18, etc. (the numbers represent weight%). Further, the amorphous metal fiber having a circular cross section, which is the detected object 1, can be subjected to processing such as wire drawing and rolling and heat treatment to further improve the detected performance in the detection system.

The amorphous metal fiber having a circular cross section according to the present invention has a roundness as shown below. That is, the circularity here is defined by a ratio (Rmin / Rmax) of the longest axis diameter Rmax and the shortest axis diameter Rmin of the same cross section of the amorphous metal fiber × 100, and the amorphous metal fiber having a circular cross section in the present invention. Means an amorphous metal fiber having a circularity of 70% or more, preferably a circularity of 80% or more, and more preferably 85% or more. Also,
The wire diameter of the amorphous metal fiber that is the detected object 1 is preferably 10 to 500 μm, and more preferably 30 to 200 μm. When the wire diameter of the amorphous metal fiber which is the detected object 1 is smaller than 10 μm, the signal generated at the time of detection is small and it is difficult to put it into practical use. On the other hand, when the wire diameter of the amorphous metal fiber which is the detected object 1 exceeds 500 μm, the rigidity of the marker continuum increases, problems such as winding collapse occur, and the life of the cutter blade during cutting is shortened. There is a tendency to get lost.

Further, in the present invention, it is necessary that the object to be detected is sandwiched between the upper surface tape and the lower surface tape. In FIG. 1, the upper surface tape 2 having the adhesive layer 3 is for holding the detection target 1 as a marker together with the lower surface tape 4, and the adhesive layer 5 below the lower surface tape 4 is the object to which the marker is attached. It is for fixing to. In the present invention, the upper surface tape 2 having the adhesive layer 3
And a pressure-sensitive adhesive tape coated with a pressure-sensitive adhesive is used as the lower surface tape 4 having the adhesive layer 5, and it is preferable to use a synthetic resin film, paper, or the like as the material of the tape base material. As a synthetic resin film,
Polyester film, polypropylene film, polystyrene film and the like are preferable. Further, the thickness of the tape base material is preferably 10 to 200 μm,
Further, it is preferably 15 to 100 μm. The pressure-sensitive adhesive used for the pressure-sensitive adhesive layers 3 and 5 is preferably a rubber-based, acrylic-based, or silicon-based pressure-sensitive adhesive, and the thickness thereof is preferably 15 to 60 μm.

Further, the marker continuum 6 of the present invention having the structure as shown in FIG. 1 has a release paper on the adhesive layer 5 side of the lower surface tape 4, or has a release paper on the adhesive layer 5 side. If not, the upper surface side of the upper surface tape 2 is subjected to a silicone release treatment. However, it is not possible to attach the release tape to the article to be attached while peeling the release paper with the attaching device. Since the peeled release paper is a hindrance when it is applied at high speed, and it takes time to process it, it is better to apply the silicone release treatment on the upper surface of the top tape 2. It is preferable because it is easy and does not produce release paper residue.

As a method of sticking the marker continuum of the present invention, while the marker continuum of the present invention is being stuck to an article to be stuck, it is cut by a rotary cutter, a shear cutter or the like. FIG. 2 shows an example of sticking the marker continuum 6 of the present invention on a production line. In FIG. 2, the marker continuum 6 of the present invention is attached to the packaging film 7 and cut by the rotary cutter 8.

In the marker of the present invention, a semi-hard magnetic material is arranged so as to make magnetic contact with the object to be detected as a deactivating material for deteriorating the performance of the amorphous metal fiber as the object to be detected. it can. As the semi-hard magnetic material, a material having a coercive force of 10 to 500 Oersted magnetism is preferable, and more specifically, Baicalloy or FeCoCr alloy material is more preferable. The fact that the semi-hard magnetic material is in magnetic contact with the detected object means that the semi-hard magnetic material is in a positional relationship such that when the semi-hard magnetic material is magnetized, the influence of the magnetic flux affects the detected object. More preferably, the object to be detected and the semi-hard magnetic material are in direct contact with each other. The shape of the semi-hard magnetic material may be a strip shape or a circular shape, and its shape and length are not particularly specified, but preferably the length is 3 to 20 mm and the width is 0.5 to 10 mm. , Thickness 0.0
A strip having a length of 2 to 0.5 mm is preferable.

On the other hand, when the continuous marker body 6 of the present invention is wound around the paper tube 9 or the like, the continuous marker body 6 can be wound long without increasing the winding outer diameter by traverse winding as shown in FIG. You can As a result, the labor of exchanging the marker continuum in the label sticking device in the factory is reduced, and the label sticking device can be operated efficiently. The traverse width and the traverse pitch (the distance that the marker continuum moves in the left-right direction while the marker continuum is wound once) are not particularly limited, but the traverse width is 4 to 50 mm, and the traverse pitch is 1 to 30 m.
m is preferable. The marker of the present invention is excellent in sticking of the marker on a production line of 40 m / min or more, but can be used on a production line of less than 40 m / min.

[0016]

Next, the present invention will be described specifically with reference to examples and comparative examples. Example 1 Co _47.3 Fe _44.8 Si _5.0 B was used as an amorphous metal fiber having a circular cross section (roundness of 85%), which is the object to be detected.
_2.9 (numerical values represent weight%) of amorphous metal fibers with a wire diameter of 94 μmφ and two pressure-sensitive adhesive tapes as an upper tape and a lower tape having an adhesive layer are used for detection. A marker continuum of the present invention was produced in which the body was present in the same direction as the sticking direction and the body to be detected was sandwiched between two pressure-sensitive adhesive tapes. The base material of the pressure-sensitive adhesive tape on the upper surface used in this marker continuum was a polyester film having a thickness of 38 μm, and the base material of the pressure-sensitive adhesive tape on the lower surface was a polyester film having a thickness of 25 μm. . As the adhesive layer of the pressure-sensitive adhesive tape, an acrylic adhesive is used and its thickness is 3
It was set to 0 μm. Further, silicone release treatment was applied to the upper surface of the pressure-sensitive adhesive tape on the upper surface.

Using this continuous marker body, a marker was attached in a dry battery packaging line at a production line speed of 600 m / min. A rotary cutter was used to cut the marker continuum, and the marker continuum was cut while being attached to the packaging film of the dry battery. In the first embodiment, the production line speed is 6
Even if a marker is attached on the production line of 00m / min,
There was no marker sticking error, and the sticking rate was 100%.
Furthermore, the merchandise to which the marker was attached was passed through the detection system to test the detected performance. As a result, all the products to which the marker continuum of the present invention was cut and attached were detected by the detection system, and the detected performance was very stable.

Comparative Example 1 The same Co _47.3 F as in Example 1 was used as an amorphous metal fiber having a circular cross section (roundness of 85%) which is the object to be detected.
e _44.8 Si _5.0 B _2.9 (numerical values represent% by weight) Amorphous metal fibers with a wire diameter of 94 μmφ having an alloy composition were used to prepare a continuous marker body in which the object to be detected was held by one pressure-sensitive adhesive tape. . The base material of the pressure-sensitive adhesive tape used for the marker continuum is a polypropylene film having a thickness of 60 μm, and the adhesive layer of the pressure-sensitive adhesive tape is
An acrylic pressure-sensitive adhesive was used, and the thickness was set to 25 μm. Further, a silicone release treatment was applied to the surface of the pressure-sensitive adhesive tape opposite to the adhesive layer.

Using this continuous marker body, markers were attached in a dry battery packaging line at a production line speed of 600 m / min in the same manner as in Example 1. A rotary cutter was used to cut the marker continuum, and the marker continuum was cut while being attached to the packaging film of the dry battery. In Comparative Example 1, the amorphous metal fiber having a circular cross-section that protruded from the pressure-sensitive adhesive tape and was about to come off the pressure-sensitive adhesive tape during this attachment was completely pressure-sensitive when cut with a rotary cutter. Some of the markers contained amorphous metal fibers that could not be adhered to the product because they were detached from the adhesive tape. As a result, the sticking rate of the marker capable of containing the amorphous metal fiber having a circular cross section was 70% of the dry battery for which sticking was attempted, which was lower than that in Example 1.

Further, the detection performance was tested by passing a dry cell, to which a marker containing an amorphous metal fiber having a circular cross section was attached, through a detection system. As a result, 25 of the dry cells with the markers attached
% Was not detected by the detection system. Then, when the marker which was not detected by the detection system was observed, a part where the amorphous metal fiber having a circular cross section was bent or bent was observed. That is, in the marker continuum in which the amorphous metal fiber having a circular cross section is held by only one pressure-sensitive adhesive tape, the performance to be detected is extremely deteriorated and it cannot be put to practical use.

COMPARATIVE EXAMPLE 2 As shown in FIG. 3, a conventional marker 10 in which the object to be detected 1 crosses the release paper 11 or the sticking direction and is separated one by one and temporarily attached to the release paper 11 is used. Using the same, a marker was attached in the same dry battery packaging line as in Example 1. The tape used for this marker 10 was made of paper having a thickness of 60 μm, the size was 10 mm in length and 65 mm in width, and an acrylic adhesive was used for the adhesive layer. ALS350 (corresponding maximum line speed 40 m / min, maximum number of sticking sheets 800 labels / min, manufactured by Avery Co., Ltd.) was used for sticking the markers. The marker was attached to the outer film of the dry battery by the above-mentioned attaching device, but the attachment rate was very low at 15% because the production line speed was higher.

Example 2 As an amorphous metal fiber having a circular cross section (roundness of 81%), which is an object to be detected, has an alloy composition of Fe _92.0 Si _4.6 B _3.4 (numbers represent weight%) and a wire diameter of 125 μm.
Two pressure-sensitive adhesive tapes are used as the upper surface tape and the lower surface tape having an adhesive layer using amorphous metal fibers of mφ, and the detection object exists in the same direction as the sticking direction. A marker continuum of the present invention in which the marker was sandwiched between two pressure-sensitive adhesive tapes was produced. The base material of the pressure-sensitive adhesive tape on the upper surface used in this marker continuum was a polyester film having a thickness of 60 μm, and the base material of the pressure-sensitive adhesive tape on the lower surface was a polyester film having a thickness of 25 μm. . An acrylic adhesive is used as the adhesive layer of the pressure-sensitive adhesive tape, and its thickness is 35 μm.
And Further, silicone release treatment was applied to the upper surface of the pressure-sensitive adhesive tape on the upper surface.

Using this continuous marker body, the marker was affixed on a bottle packaging line with a production line speed of 250 m / min. A shear cutter was used for cutting the marker continuum, and the marker continuum was cut while being attached to the packaging film of the bottle. In the second embodiment, the production line speed is 250
Even when the marker was stuck on the m / min production line, there was no marker sticking error, and the sticking rate was 100%. Furthermore, the merchandise to which the marker was attached was passed through the detection system to test the detected performance. As a result, all the products to which the marker continuum of the present invention was cut and attached were detected by the detection system, and the detected performance was very stable.

Example 3 Co _47.3 Fe _44.8 Si _5.0 B was used as an amorphous metal fiber having a circular cross section (roundness of 88%) which is the object to be detected.
_2.9 (numerical value represents% by weight) of amorphous metal fiber having a wire diameter of 79 μmφ and two pressure-sensitive adhesive tapes as an upper surface tape and a lower surface tape having an adhesive layer are used for detection. A marker continuum of the present invention was produced in which the body was present in the same direction as the sticking direction and the body to be detected was sandwiched between two pressure-sensitive adhesive tapes. The base material of the pressure-sensitive adhesive tape on the upper surface used for this marker continuum is a polypropylene film having a thickness of 50 μm,
The base material of the pressure-sensitive adhesive tape on the lower surface was a polyester film having a thickness of 16 μm. A rubber-based adhesive is used as the adhesive layer of the pressure-sensitive adhesive tape, and its thickness is 25
μm. Further, silicone release treatment was applied to the upper surface of the pressure-sensitive adhesive tape on the upper surface.

Using this continuous marker body, a marker was attached in a dry battery packaging line similar to that of Example 1 at a production line speed of 600 m / min. A rotary cutter was used to cut the marker continuum, and the marker continuum was cut while being attached to the packaging film of the dry battery. In Example 3,
Even when the marker was stuck on the production line at a production line speed of 600 m / min, there was no marker sticking error, and the sticking rate was 100%. Furthermore, the merchandise to which the marker was attached was passed through the detection system to test the detected performance. As a result, all the products to which the marker continuum of the present invention was cut and attached were detected by the detection system, and the detected performance was very stable.

[0026]

EFFECTS OF THE INVENTION The marker continuum of the present invention can efficiently attach a marker to an adherend even in a high-speed production line of 40 m / min or more. Furthermore, the continuous marker body of the present invention can prevent the amorphous metal fiber having a circular cross section, which is the detected body, from separating from the tape base material, and can provide a marker whose detected performance is very stable. Become.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an example of a marker continuum of the present invention.

FIG. 2 is a schematic perspective view showing an example of sticking the marker continuum of the present invention on a production line.

FIG. 3 is a schematic perspective view showing an example of a conventional marker.

[Explanation of symbols]

 1 Object to be detected 2 Upper surface tape 3,5 Adhesive 4 Lower surface tape 6 Marker continuation body 7 Packaging film 8 Rotary cutter 9 Paper tube 10 Conventional marker 11 Release paper

Claims (1)

[Claims] 1. A marker continuum in which a detected object included in a marker is present in the same direction as the sticking direction and the detected object is continuous, and the detected object has an amorphous cross section. A marker continuum, which is a metal fiber and in which the object to be detected is sandwiched between an upper surface tape and a lower surface tape.