JPH0541845U - Transfer tape - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a magnetic layer transfer tape in which a magnetic bar code is uniformly produced with a high yield without requiring a printing machine and the output waveform is even. A magnetic layer comprising a base, a release agent formed thereon, a magnetic layer formed on the release agent, and a heat-sensitive or pressure-sensitive adhesive formed on the magnetic layer. Is a tape for magnetic layer transfer with slit-like cuts. Alternatively,
A retroreflective layer is interposed between the release layer and the magnetic layer.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transfer tape for a magnetic layer and / or a retroreflective layer for a magnetic barcode. The present invention can be used not only for magnetic cards but also for traffic signs such as product tags, production control tags, roads and walls.

[0002]

[Description of Prior Art]

 Conventional magnetic or (and) retroreflective barcodes are produced by printing a printing ink containing a magnetic material or a retroreflective material with various printing methods (gravure, offset, screen method) such as a magnetic card base or magnetic card. A method of printing on the surface of the magnetic layer of the base, such as, is used. However, the printing method is complicated and leads to cost increase. Further, it is difficult to form a layer having a uniform thickness by the printing method, so that it is difficult to obtain quality stability. In order to solve these problems, a transfer tape is used that has an intermittent magnetic layer or (and) retroreflective layer formed by printing on a base such as polyester. A method of making a magnetic barcode by transferring the layer to a substrate such as a magnetic card is also conceivable.

[0003]

[Problems to be solved by the device]

 However, while the conventional method using a magnetic layer or a retroreflective layer transfer tape is suitable for forming a continuous layer such as a magnetic or retroreflective stripe, the magnetic or (And) Not suitable for transfer of patterned intermittent layers such as retroreflective barcodes. For example, to improve the cutting of the magnetic layer or (and) the retroreflective layer of the transfer tape (the sharpness of the transfer portion edge) when the transfer tape is selectively heated and transferred using a thermal head. Must make the magnetic layer or / and the retroreflective layer of the transfer tape sufficiently brittle, which impairs the mechanical strength of the magnetic layer or / and the retroreflective layer. On the other hand, if the brittleness is improved, the cutting becomes worse, and the transfer area is not constant, causing noise in the recorded information. This invention was made to solve these problems.

[0004]

[Means for Solving the Problems]

 The above problems of the present invention are as follows: (1) A magnetic layer in which a magnetic layer is coated on a base coated with a release agent, and a heat-sensitive or pressure-sensitive adhesive is further coated on the base, and slits are formed in the magnetic layer. Transfer tape, (2) Regression reflection layer transfer in which a retroreflective layer is provided on a base coated with a release agent, a heat-sensitive or pressure-sensitive adhesive is coated on it, and slits are made in the retroreflective layer. Tape or (3) a base coated with a release agent, a retroreflective layer is provided on top of which a magnetic layer is coated, and then a heat-sensitive or pressure-sensitive adhesive is further coated on the base to form a magnetic layer and a retroreflective layer. The problem is solved by using a slit-like retroreflective layer and a magnetic layer transfer tape.

Using the magnetic layer or (and) the retroreflective layer transfer tape divided by the cut lines in this way, the adhesive surface of the transfer tape is brought into contact with the magnetic card or other substrate on which the bar code is to be attached. Then, by selectively heating or pressurizing a predetermined section from the back surface side of the base, the magnetic layer, the retroreflective layer, or the magnetic layer with the retroreflective layer is attached to the front surface of a predetermined base material such as a credit card or other information card by a bar code. Transfer to the shape. A magnetic barcode without a retroreflective layer can be magnetically read regardless of whether the magnetic material is hard magnetic or soft magnetic. The retroreflective layer barcode without the magnetic layer can be optically read by a non-contact method. A magnetic bar code with a retroreflective layer enables not only magnetic reading but also non-contact optical reading.

[0006]

[Explanation of Examples]

 Next, an embodiment of the magnetic layer transfer tape of the present invention will be described in detail with reference to the drawings.

Example 1 A magnetic layer transfer tape according to a first example of the present invention shown in FIG. 1 has a PET base 6 coated with a release agent 4 and a magnetic layer 3 coated thereon. A heat-sensitive or pressure-sensitive adhesive 2 is applied to the above. When all layers have been applied, a number of equally spaced cuts 1 are made through layers 2, 3, and 4 as shown, with a cutting tool having a sharp cutting edge. It is the magnetic layer 3 that is a strong coating film that needs a cut, but it is impossible to cut only that layer, so slit-like cuts are made in the layers 2, 3, and 4. Alternatively, the cut 1 may be formed over the magnetic layer 3 and the release layer 4 when the magnetic layer 3 is applied and dried. The release layer 4 may have a cut only on the surface side. If necessary, a releasable protective layer (not shown) may be formed on the surface of the magnetic layer transfer tape thus obtained.

Example 2 A magnetic layer transfer tape according to a second example of the present invention shown in FIG. 2 has a PET base 6 coated with a release agent 4 and a retroreflective layer 5 coated thereon. The layer 3 is coated, and the heat-sensitive or pressure-sensitive adhesive 2 is further coated thereon. When all layers have been applied, a cutting means having a sharp cutting edge is used to make a number of equally spaced cuts 1 through the layers 2, 3, 4 as shown. It is the magnetic layer 3 and the retroreflective layer 5 that are strong coating films that need to be cut, but it is impossible to cut only those layers, so slits are made in the layers 2, 3, 4, and 5. Alternatively, the cut 1 may be formed from the magnetic layer 3 to the release layer 4 when the magnetic layer 3 is applied and dried. The release layer 4 may have a cut only on the surface side. If desired, a releasable protective layer (not shown) may be formed on the surface of the magnetic layer transfer tape thus obtained.

Example 3 The magnetic layer 3 of Example 2 was omitted.

As the base for forming the magnetic layer transfer tape of the present invention, polyester such as polyethylene terephthalate (PET), or any other known base can be used. Known materials such as silicone can be used as the release agent, and powders of soft magnetic materials such as Fe and Fe—Ni alloys or hard materials such as γFe ₂ O ₃ , Ba ferrite and Sr ferrite can be used as the magnetic layer. A known powder of a magnetic material dispersed in a resin binder can be used. Further, as the retroreflective layer, glass beads having a particle diameter of 1 to 100 μm can be used. Ordinary commercially available materials can be used as the heat-sensitive or pressure-sensitive adhesive.

Using the transfer tape configured as described above, the adhesive surface of the transfer tape is brought into contact with the magnetic card or other substrate on which a magnetic barcode or (and) retroreflective barcode is to be attached, and the back surface of the base. The magnetic layer or / and the retroreflective layer is transferred in the form of a bar code by selectively heating or pressing from the side. For example, in FIG. 1 or FIG. 2, transfer is performed by applying heat or pressure to a section selected according to a predetermined code from 11 sections shown by 1 to 11 formed in the same size.

[0012]

[Effect of the device]

 According to the present invention, the following effects can be obtained. (1) A bar code can be created uniformly with good yield. This is because the thickness of the magnetic layer or the retroreflective layer formed by the overall coating method is extremely uniform as compared with the printing barcode method, and the occurrence of defects due to the thickness variation is extremely small. (2) Since no printing machine is required, the cost is reduced. This is because the printing machine requires a large equipment cost, but with this method, the transfer tape of the present invention with the slits can be mass-produced consistently in the factory, while the card manufacturer who actually processes the bar code is simply thermal. This is because it is only necessary to ground the head transfer machine. (3) Since the thickness is constant, the output waveform is uniform and the reading error is reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of a magnetic layer transfer tape according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a magnetic layer transfer tape according to a second embodiment of the present invention.

[Explanation of symbols]

 1 Break 2 Adhesive Layer 3 Magnetic Layer 4 Release Layer 5 Retroreflective Layer 6 PET Base

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G11B 5/855 Z 7303-5D

Claims (3)

[Scope of utility model registration request] 1. A base and a release agent formed on the base,
A magnetic layer transfer tape comprising a magnetic layer formed on the release agent and a heat-sensitive or pressure-sensitive adhesive formed on the magnetic layer, wherein the magnetic layer has slit-like cuts. 2. A base and a release agent formed on the base,
A retroreflective layer transfer comprising a retroreflective layer formed on the release agent and a heat-sensitive or pressure-sensitive adhesive formed on the retroreflective layer, wherein the retroreflective layer has slit-like cuts. Tape. 3. A base and a release agent formed on the base,
A reflex reflection layer formed on the release agent, a magnetic layer formed on the regression reflection layer, and a heat-sensitive or pressure-sensitive adhesive formed on the magnetic layer. Regressive reflection layer and magnetic layer transfer tape with slit-like cuts in the reflection layer.