JPH0831198B2 - Method of manufacturing label for article monitoring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an amorphous metal that is used for the anti-theft system of goods, articles, books, etc. in retail stores, large stores, public facilities, etc. The present invention relates to a method of manufacturing an article monitoring label using a thin wire.

(Prior Art) It is said that the number of cases where goods are taken out without permission from large-scale stores such as department stores and supermarkets and public facilities such as libraries is increasing year by year. In order to prevent these items from being taken out without permission, that is, in order to prevent theft, in recent years, a label using a soft magnetic material has been attached to an item, and when the item passes through the detection area, the soft magnetic material of this label is attached. A magnetic system that causes a change in the magnetic field and detects this magnetic change is used. As a soft magnetic material to be held in a label used in this magnetic system, an amorphous metal material has recently been used for the purpose of improving the sensitivity and reliability of the system. Has been noticed (Japanese Patent Laid-Open No. 61-153799).

On the other hand, it is necessary to process the products purchased legally so as not to be detected by the detection system. Therefore, as one of the methods, it is better to hold the soft magnetic material than the signal generation source. A hard magnetic material with a large force is held close to the soft magnetic material in the label, and a bias magnetic field is applied to the soft magnetic material by magnetizing the hard magnetic material by an appropriate means to obtain a used label, A so-called deactivatable label (U.S. Pat. No. 3747086) capable of artificially eliminating the generation of an alarm signal has also been proposed.

(Problems to be Solved by the Invention) A deactivated label is formed by using an amorphous metal thin wire as a signal generation soft material and combining the two methods as described above, but this label is still in industrial production. It has not reached the state.

The reason is that in order to create a deactivatable label in which an amorphous metal thin wire and a hard magnetic material are combined, a label composed only of the amorphous metal thin wire and a label composed of the hard magnetic material are prepared in advance, and then both of them are prepared. This is a so-called two-step process in which the desired deactivatable label is formed by stacking the two together, and the main reason is that the number of steps is large and the production cost is high.

(Means for Solving the Problems) The inventors of the present invention have made amorphous metal thin wires and hard magnetic ribbons or hard magnetic filaments having a coercive force larger than that (hereinafter simply referred to as hard magnetic material). As a result of earnest studies aimed at providing a method for continuously producing a deactivatable label for encapsulating a hard magnetic material in a single step, as a result, a hard magnetic material was produced at a feeding speed slower than the running speed of a tape substrate. The hard magnetic material is supplied to the cutting position and cut, and the cut hard magnetic material is arranged on the tape base material in a plurality of strips at regular intervals, and is composed of amorphous metal fine wires, adhesive and release paper. The present invention has been accomplished by finding that an article monitoring label can be easily and inexpensively manufactured by a continuous process by supplying and bonding a lower surface tape.

That is, the present invention is a tape-like product in which an amorphous metal thin wire and a hard magnetic material, each of which is cut into a required length, are enclosed between at least two tapes having a paper or film as a base material. When manufacturing a label for cutting out the tape-shaped product into a predetermined size and using it for an article take-out monitoring system, in the process before cutting out the tape-shaped product into a predetermined size, a hard magnetic material is used as a tape base. After the hard magnetic material is supplied to the position where it is cut at a supply speed slower than the running speed of the material and cut, and the cut hard magnetic material is arranged on the tape base material in a plurality of strips at regular intervals, The gist of the present invention is to provide a method for manufacturing an article monitoring label, which comprises supplying a lower surface tape composed of an amorphous metal fine wire, an adhesive and a release paper and bonding it.

 The present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view showing the manufacturing method of the present invention, in which the hard magnetic material (1) is cut at a predetermined speed by the rotation of the nip roller (2) and the facing roller (3). Is supplied to the position. At this cutting position, the anvil roller (4) in which magnets are embedded at equal intervals on the circumference and the bladed roller (5) having a plurality of blades projecting at equal intervals on the circumference above the anvil roller (4) are paired. This is the position where they are installed and abutted. The hard magnetic material (1) is cut on the upper surface of the anvil roller (4) by abutting the rotary blade of the bladed roller (5). The cut strip-shaped hard magnetic material (6) is gripped by the magnet (7) on the anvil roller (4) and moves as the roller (4) rotates. Since the surface speed of the anvil roller (4) due to the rotation is faster than the supply speed of the hard magnetic material (1), the cut strips of the hard magnetic material (6) are separated from each other at regular intervals by the anvil roller (4). ) Will be lined up on the top. The surface speed of the anvil roller (4) and the hard magnetic material are adjusted so that the sum of the length of the strip (6) and the cutting interval is equal to the sum of the length of the magnet on the surface of the anvil roller (4) and the interval between the magnets. Set the supply rate in (1).
That is, the supply rate of the hard magnetic material (1) is expressed by the following equation.

<Hard magnetic material supply rate> Next, the upper surface tape (8) coated with the adhesive (101) on one side is supplied to the anvil roller (4) and pressed against the anvil roller (4) by the nip roller (9). The running speed of the top tape (8) is preferably set to a speed equal to the surface speed of the anvil roller (4).

Several strips of hard magnetic material (6) on the anvil roller (4) are fixed to the upper surface tape (8) with an adhesive (101), and several strips of hard magnetic material (6) are arranged at regular intervals. The tape (10) is arranged and attached. Amorphous metal wires (11), adhesive (102) and release paper (1
The bottom tape (12) with 03) is attached to complete the label, and then the label is supplied to the label cutting device (13) to perform label forming. At the time of this bonding, the amorphous metal thin wire (1
The length of the amorphous metal thin wire (11) is cut into the label of the final molding by setting the feeding speed of 1) to a speed lower than the running speed of the tape (10) with hard magnetic material and the bottom tape (12). It becomes possible to make it shorter than the length. Next, since the strip-shaped hard magnetic material (6) on the tape (10) with the hard magnetic material is magnetized by the magnet (7) of the anvil roller (4), it is known as a demagnetization means for erasing the magnetism. After passing through the container (14), it is wound up as a product.

FIG. 2 (a) is a front view of the hard magnetic material cutting position composed of the bladed roller (5) and the anvil roller (4).
A side view is shown in FIG. 2 (b). The roller with blade (5)
A plurality of blades (21) are projected at equal intervals. Blades (21)
As the material, a hard material, for example, a cemented carbide is preferable. Small pieces of permanent magnets (7) are embedded at equal intervals on the surface of the anvil roller (4) in contact with the roller (5).
The size of the magnet (7) is the size of the strip of the cut hard magnetic material (6) because the cut hard magnetic material (6) is attracted to the magnet (7) and runs stably. It is preferable to adjust

(Examples) Hereinafter, the present invention will be specifically described with reference to Examples.

Wire diameter 1 between two 25 μm thick polyethylene terephthalate (PET) films with acrylic adhesive
A 25μm amorphous metal wire (alloy composition; Fe _77.5 Si _7.5 B ₁₅ suffix is atomic%) and a hard magnetic ribbon of 50 μm thickness and 2.5 mm width (made by Krovac 10/130 Vacuum Schmelze),
By the manufacturing method of the present invention described above, FIG.
A label as shown in was prepared.

That is, as shown in FIG. 1, the top tape (8) has a 25 μm-thick PET film and an acrylic adhesive (PAT).
-1 type, manufactured by FSK Co., Ltd., applied to a thickness of 25 μm. The lower surface tape (12) is a polypropylene film with a thickness of 20 μm and an acrylic adhesive (JHL-2359 type, Nippon Fuller Co., Ltd.). ) Made in) is applied to a thickness of 25 μm, and the thickness is 70 μm.
The release paper (103) was used as the silicon-treated paper.

The diameter of the anvil roller (4) was 93 mmφ, and 15 magnets 2.5 mm wide and 5 mm long were embedded at equal intervals on the circumference. The diameter of the bladed roller (5) was set to 62 mmφ, and ten cemented carbide blades (21) were arrayed and projected on the circumference at equal intervals. The diameter of the opposing roller (3) that supplies the hard magnetic ribbon is 33.5 mmφ, and the anvil roller (4) and the opposing roller (so that the hard magnetic ribbon travels 7 mm while the surface of the anvil roller (4) travels 19.5 mm. The peripheral speed ratio of 3) was set.

The hard magnetic ribbon is applied to the anvil roller (4) at a speed determined by the rotations of the nip roller (2) and the counter roller (3).
And is cut by the rotary blade of the bladed roller on the upper surface of the anvil roller to form a strip, which is gripped by the magnet of the anvil roller and moves with the rotation of the roller, and is supplied at the same speed as the peripheral speed of the anvil roller. A tape (10) with hard magnetic material, which is fastened to the adhesive (101) of the tape (8) and in which strip-shaped hard magnetic thin ribbons are arranged at regular intervals.
Is created. This tape (10) is followed by laminating the amorphous metal thin wire (11) and the lower surface tape (12), immediately introducing it into the label cutting device (13) and forming it into a label shape, and then a degausser. Roll through (14). The running speed of this tape (12) is 30 m / min.

As a result, as shown in FIG. 3 (a), the length of the strip of hard magnetic ribbon (x) is 7 mm, and the cutting interval of the strip (y) is 1.
A label of 2.5 mm and label length (L) of 95 mm could be continuously and stably manufactured.

The release paper (10) coated with the adhesive (102) of FIG. 3 (b)
The bonding process of 3) is omitted because it is a conventional method.

(Effects of the Invention) The method for producing a label for monitoring articles according to the present invention is a simple and easy, continuous, and inexpensive method for producing a label for monitoring articles that can be inactivated by combining an amorphous metal thin wire and a hard magnetic material. It has the advantage that it can be manufactured as follows.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an embodiment of the present invention, and FIG.
Figure (a) is a front view of the cutting position of the hard magnetic material in the manufacturing process, Figure 2 (b) is its side view, Figure 3 (a).
Is a partial plan view of one embodiment of the produced label,
FIG. 1B shows a cross sectional view thereof. (1) …… Hard magnetic material, (2) …… Nip roller (3) …… Counter roller, (4) …… Anvil roller (5) …… Blade roller, (6) …… Strip-shaped hard magnetic material ( 7) …… Magnet, (8) …… Top tape (9) …… Nip roller, (10) …… Tape with hard magnetic material (11) …… Amorphous metal wire, (12) …… Bottom tape (13) ) …… Label cutting device, (14) …… Degausser (21) …… Blade, (101) …… Adhesive (102) …… Adhesive, (103) …… Release paper

Claims (1)

[Claims] 1. A tape-like material obtained by enclosing an amorphous metal thin wire and a hard magnetic material, each of which is cut into a required length, between at least two tapes having a base material such as paper or film. None, when manufacturing a label for cutting out the tape-shaped material to a predetermined size and using it for an article carry-out monitoring system, in the process before cutting the tape-shaped material to a predetermined size, a hard magnetic material is used as a tape base material. After the hard magnetic material is fed to a position where it is cut at a feeding speed lower than the traveling speed, the cut hard magnetic material is arranged on the tape base material in a plurality of strips at regular intervals. A method of manufacturing an article monitoring label, comprising supplying a lower surface tape composed of an amorphous thin metal wire, an adhesive and a release paper, and bonding the thin tape.