JPH07129733A - Magnetic card with optical bar code - Google Patents

Abstract

PURPOSE:To use a reflection densitometer to accurately confirm the density of the layer of an infrared absorbent by providing a density confirmation mark consisting of the same infrared absorbent as the optical bar code in the vicinity of the optical bar code by printing simultaneously with print of the optical bar code. CONSTITUTION:An infrared reflection layer 4 consisting of a white paint is formed on a magnetic recording face 3. An optical bar code 1 essentially consisting of the carbon black which absorbs infrared rays is printed on the upper face of the infrared reflection layer 4. Simultaneously, a density confirmation mark 2 consisting of the same infrared absorbent as the optical bar code 1 is printed on the same face in the vicinity of the bar code 1. The density confirmation mark 2 has 3mm to 10mm diameter in the case of a circle and has 3mm to 10mm width in the case of a band. A dummy layer 6 and a white concealing layer 7 are formed on upper faces of the optical bar code 1 and the density confirmation mark 2, and Indian ink characters 5 are printed on the upper face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an infrared reflective layer as a base and a magnetic card with a bar code formed by printing a bar code on the upper surface of the infrared reflective layer using an infrared absorbing material.

[0002]

2. Description of the Related Art At present, an optical bar code using infrared rays (hereinafter referred to as a bar code) is mainly used for discriminating a ticket type. When manufacturing this kind of conventional magnetic card with optical barcode, in the printing process when printing the barcode,
The optical barcode printed on a sheet made of polyethylene terephthalate (PET) substrate is used to detect the density of the optical barcode printed on the magnetic card using a Macbeth meter that measures the degree of absorption and reflection of infrared rays. Therefore, it was confirmed whether or not the specifications were met. Therefore, during printing, an arbitrary number of sheets having a ratio of about 3% with respect to the production quantity was extracted and the density of the optical barcode was confirmed.

[0003]

In the conventional method of measuring the absorption and reflection of an optical bar code using a Macbeth meter for an optical bar code and confirming the density of the optical bar code on the magnetic card, the density is confirmed. The thickness of the base material is 0.2 mm
Since the ET sheet is deformed by the heat of the Macbeth meter,
There was a drawback that the sheets used for inspection could not be used. Also, in order to avoid the sheet loss that occurs when using the Macbeth meter, the bar code recording area is directly irradiated with a reflection densitometer instead of the Macbeth meter, and the amount of infrared rays reflected from the bar code area, that is, the bar code. Even if you try to check the coating density of, the width of one bar code is 1 mm or less,
Since the coating area is very small, there is a problem that it is difficult to accurately confirm the concentration with a reflection densitometer.

[0004]

SUMMARY OF THE INVENTION In order to eliminate these drawbacks, the present invention provides a bar code printed using a reflection densitometer at a position close to the bar code and parallel to the bar code printing direction. At the same time as printing the bar code, a circle-shaped density check mark with a diameter of at least 3 mm or a band width of 3 mm or more should be provided at the same time as the bar code is printed so that the sheet will not be damaged even without using a Macbeth meter. A magnetic card with an optical bar code may be used to accurately confirm the density of the coating layer of the infrared absorbing material of the density confirmation mark by using a reflection densitometer.

That is, according to the present invention, an infrared reflecting layer is printed on the base, and an optical bar code made of an infrared absorbing material is printed on the infrared reflecting layer, and a dummy layer is formed on the upper surface on which the optical bar code made of the infrared absorbing material is printed. In a magnetic card with an optical bar code that has a white concealment layer, at the same time as printing the optical bar code to be printed on the infrared reflective layer, it is the same as the optical bar code in the vicinity of the optical bar code and parallel to the array direction of the optical bar code. 2. A magnetic card with an optical bar code, characterized in that a density confirmation mark of the infrared absorbing material is printed and provided.

[0006]

[Function] A density confirmation mark formed of an infrared absorbing material, which is the same as an optical barcode having a diameter of at least 3 mm or a width of 3 mm or more, which is printed at the same time as the barcode is formed in proximity to the barcode, forms the barcode. A Macbeth meter is not required to measure the infrared absorption of the printed layer, and the density can be accurately measured with the density confirmation mark printed in a circle or a band with a reflection densitometer, and a damaged sheet does not occur. The product yield of optical barcode can be improved. In addition,
The size of the density confirmation mark for confirming the density of carbon black that forms the optical barcode that absorbs infrared rays by using the reflection density is at least 3 mm in diameter or a band when the shape is circular due to the sensitivity of the reflection densitometer. When printing on, the width is required to be at least 3 mm or more, and the diameter or width may be at most 10 mm even if it is circular or strip-shaped. When using the circular density check mark, stop the movement of the sheet to check the density, but when using the band-shaped density check mark, you can check the density while moving the sheet, which improves work efficiency. Can be improved and the average value of the concentration can be obtained, so that the measurement accuracy of the concentration confirmation can be improved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a mark at the time of printing formed on a PS (Pre-sensitized) plate to be printed on a sheet for making a magnetic card with an optical bar code according to the present invention, in which the position of the inner thin line is punched when punching the card. The position. Concentration confirmation mark 2
Is provided in the vicinity of the optical bar code 1 in the vicinity of the bar code and in a position parallel to the bar code arrangement direction, not on the track for reading the bar code output. The size of the density confirmation mark 2 is such that it can be sufficiently measured by a reflection densitometer, and the diameter may be at least 3 mm or more and 10 mm or less in the case of a circular shape, and the width may be 3 mm or more and 10 mm in the case of a band shape. Further, in the examples, the shape is shown as a density confirmation mark having a circular shape or a band shape, but the shape may be any shape such as a square shape, a rectangular shape, an elliptical shape or the like, and an area corresponding to a circular shape having a diameter of 3 mm or more Any density confirmation mark may be used.

A PS plate for offset printing is prepared by using the photoprinting film coated on the metal surface as shown in FIG. Using the plate, on the infrared reflective layer 4 of the sheet (PET) for making a magnetic card with an optical bar code, as shown in FIG.
After forming the infrared reflective layer made of a normal white paint shown in (a), the optical bar code 1 containing carbon black which absorbs infrared light shown in FIG. 2 (b) as a main component is formed on the upper surface of the infrared reflective layer. Print. In the present invention, as shown in FIG. 2 (b), the optical bar code 1 is printed on the infrared reflective layer coated with a white paint with a coating thickness of 1 μm to 2 μm, and at the same time,
A density confirmation mark 2 made of the same infrared absorbing material as the optical barcode is printed on the same surface at the same time.

The density confirmation mark 2 enables the density of the optical bar code of each frame on the same sheet to be measured by a reflection densitometer. The density confirmation mark 2 printed at the same time as the optical barcode 1 on the infrared reflection layer 4 was measured by a reflection densitometer, and the result of the measurement showed that the coating solution of the optical barcode of the printing machine for printing the optical barcode and the density confirmation mark was used. Adjust the density and the density unevenness in the width direction of the optical barcode. After that, during the printing of the optical bar code, an arbitrary sheet is pulled out, and similarly, the optical bar code density to be printed by the printing machine is adjusted by using the reflection densitometer.

On the upper surface of the optical bar code 1 and the density confirmation mark 2 printed in the step of applying the optical bar code,
As shown in FIG. 3, a black pigment dummy layer 6 not using carbon black was applied to a thickness of 2 μm to 3 μm so that the optical bar code pattern could not be visually identified.
Further, a white hiding layer 7 of a white pigment with a coarse grain size is formed thereon, and black characters drawn on the upper surface of the white hiding layer are printed using the same black pigment as the dummy layer, as shown in FIG. 2 (c). Completed a magnetic card with an optical barcode that detects infrared rays.

[0011]

As described above, in the magnetic card with an optical bar code according to the present invention, the optical bar code is printed on the infrared reflective layer on which the optical bar code is printed simultaneously with the printing of the optical bar code on the infrared reflective layer. The density of the optical bar code can be increased by providing a density confirmation mark with a diameter or width of 3 mm to 10 mm in the same ink used for printing, close to the optical bar code and parallel to the printing direction of the optical bar code. It is not necessary to use the Macbeth meter that was used to measure the density, and you can use the normal reflection densitometer to easily and accurately check the density of the optical barcode with the density check mark, and reduce the loss of the sheet. This has the effect of preventing it and measuring the density of the printed optical bar code accurately.

[Brief description of drawings]

FIG. 1 is a PS for offset printing according to an embodiment of the present invention.
The top view which shows the structure of the printing surface of a plate.

FIG. 2 shows a printing process of a magnetic card with an optical barcode,
2A is a plan view of the inside of a frame which is a plurality of cards existing on one sheet, FIG. 2A is a plan view showing an infrared reflective layer, and FIG. 2B is a top view of FIG. 2A. 2C is a plan view in which an optical bar code and a density confirmation mark are printed using the photosensitive film shown in FIG. 2C is an infrared reflective layer, an optical bar code and a density confirmation mark printing layer, a dummy layer, and a white hiding layer are applied, The top view of the magnetic card with an optical barcode which printed the black character on the white concealment layer.

FIG. 3 is a sectional view of a magnetic card with an optical barcode.

[Explanation of symbols]

 1 Optical Bar Code 2 Density Confirmation Mark 3 Magnetic Recording Surface 4 Infrared Reflective Layer 5 Black Letters 6 Dummy Layer 7 White Hiding Layer 8 PS Plate for Optical Bar Code Printing

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Claims (1)

[Claims] 1. A dummy layer and a white concealment layer are printed on an infrared reflecting layer as a base and an optical barcode made of an infrared absorbing material printed on the infrared reflecting layer, and an optical barcode made of the infrared absorbing material is printed on the upper surface. In the magnetic card with optical barcode that has been formed, at the same time as the printing of the optical barcode to be printed on the infrared reflective layer, the same infrared absorbent density confirmation mark as the optical barcode is printed near the optical barcode. A magnetic card with an optical barcode that is characterized by