JPS5850454Y2 - Cards with recording layer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to cards having a recording layer on which predetermined information can be printed or written.

Nowadays, commuter passes have a recording layer on one side on which predetermined information that can be discerned with the naked eye is written, and a magnetic layer on the other side on which predetermined magnetic information is recorded and can be read by an automatic reader. It is being

Plastic films are used as the base material for cards with recording layers of this type because of their physical stability.

Since this plastic film generally does not have ink absorption properties, various methods such as those shown below have been used in the past.

Namely, 0) a method of heating and fixing a plastic film using a special ink containing sublimation ink and toner, and (b) a method of laminating paper or cloth with good ink absorption on the plastic film, and then applying ordinary ink to this. (c) a method of forming a coating layer on a plastic film and printing on it with ordinary ink; and (2) a method of printing on paper with ordinary ink and then sealing it on the plastic film with a transparent film. .

However, method 0) above, which uses sublimable ink, has the drawback of requiring a dedicated printing machine and heat fixing device.

Furthermore, the method of applying ridges before laminating paper or cloth has the disadvantage that it is easily deformed by water or heat and is expensive.

Furthermore, the method f) in which a coating layer is provided has the drawback that ink may fall off due to friction during card insertion and ejection, staining the card and reading device.

Furthermore, in the above-mentioned method of sealing with a transparent film, it is impossible to print after sealing, so there is a drawback that a sealing device is required for each issuing machine.

In order to eliminate the above drawbacks, the present invention consists of a base material made of a plastic film or the like, an ink adsorption layer laminated on the base material and containing a filler that adsorbs a relatively large amount of ink, and an ink adsorption layer laminated on the ink adsorption layer. The purpose of the present invention is to provide cards with a recording layer that are particularly resistant to stains, and are provided with a stain prevention layer containing a filler that adsorbs relatively little ink, and will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the present invention.

In the figure, 1 is a base material such as a plastic film, 2
is a magnetic layer formed on one side of this base material 1, 3 is mainly alumina, clay, silica, titanium oxide, barium carbonate,
A relatively uneven filler made of a single substance such as calcium carbonate or a mixture of two or more of the above is bonded to an organic resin to form a planar shape, and a relatively large amount of ink is poured into the gap between the filler and the organic resin. An ink adsorption layer 4 is an adhesive for firmly adhering the ink adsorption layer 3 to the other surface of the base material 1, and 5 is an organic resin containing the same filler and coloring pigment as the ink adsorption layer 3. The tint block layer -6 is formed on the ink adsorption layer 3 by printing the dispersed tint block ink, and the tint block layer -6 is a flat surface formed by bonding filler with relatively little unevenness, which is made of waxite talc, talc, etc. alone or in a mixture, with an organic resin. It is a stain prevention layer that is formed into a shape and adsorbs a relatively small amount into the gap between the filler and the organic resin, and this stain prevention layer 6 has good abrasion resistance and slip property, and high surface strength.

Next, the process by which ink is adsorbed onto the recording layer-equipped cards having the above structure will be explained with reference to FIGS. 2, 3, and 4.

In Figures 2, 3 and 4, I is ink, 8 is organic resin, 9 is filler with relatively little unevenness, i
,, o are fillers with relatively many irregularities.

First, when the ink I is applied by printing or writing on the stain prevention layer 6, this ink I passes through the filler 9, which has relatively few irregularities, through the gap between the organic resin 8 and the tint block layer, as shown in FIG. The ink passes through the gap between the fins 5 and the organic resin and is adsorbed onto the ink adsorption layer 3.

As shown in FIG. 3, the ink absorbing layer 3 adsorbs the ink 1 in the gap between the filler 10 and the organic resin 8, which have relatively many irregularities, so that a large amount of the ink I can be retained.

For this reason, as shown in FIG.
There is little ink T retained in the ink adsorption layer 3.
The ink T is held in the ink.

Therefore, even if the printed surface is rubbed immediately after printing, there is little trail of ink I, and the printed or written characters and designs do not disappear even if they are used many times, such as on commuter passes for automatic ticket gates. Does not contaminate the reading device.

In addition, even if you strongly erase with an eraser for the purpose of tampering, it is difficult to remove the ink I absorbed and retained by the ink adsorption layer 3 because the stain prevention layer 6 acts as an overcoat layer. Since the tint block layer 5 is formed on top of the tint block layer 5, the tint block layer 5 is removed first and the tint block disappears, making tampering more difficult.

Next, a manufacturing procedure for cards with a recording layer having the above structure will be explained.

First, a magnetic layer 2 is formed on one surface of a base material 1 using a conventional method.

Next, an adhesive 4 is applied onto the other surface of the base material 1, and a paint in which a relatively uneven filler is dispersed in an organic resin is applied onto the adhesive 4 to form an ink adsorption layer 3. .

This ink adsorption layer 3 has two layers in order to sufficiently adsorb ink.
It is desirable that the thickness be 0μ or more.

Next, a pattern is printed on the ink adsorption layer 3 using a tint block ink to form a tint block layer 5.

Next, on the ink adsorption layer 3 and tint block layer 5, a paint in which a filler with relatively few irregularities is dispersed in an organic resin is applied to form a stain prevention layer 6.

Thereafter, it is cut into a predetermined shape to obtain a card with a recording layer of the present invention.

As for the commuter pass for automatic ticket gates, the base material 1 is made of polyester with a thickness of 188 μm, the ink adsorption layer 3 is made with a thickness of 20 μm to 40 μm, and the stain prevention layer 6 is made with a thickness of about 1 μm to 3 μm. It is desirable to use organic resins such as acrylic resins and polyester resins.

The filler for the stain prevention layer 6 should preferably have low adsorption properties, and the stain prevention effect will be higher if the filler is larger in shape and the dispersion density is lower.

Furthermore, it is desirable that the tint pattern ink contains as little resin as possible.

Also, various design changes are possible for other uses.

As explained in detail above, according to the present invention, the ink on the ink ribbon is adsorbed to the ink adsorption layer, so the ink adsorption force is strong, and the stain prevention layer protects the ink adsorption layer, so the ink is It has the effect of not falling off and preventing dirt from adhering.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of a card with a recording layer according to the present invention, and FIGS. 2, 3, and 4 are diagrams illustrating the embodiment shown in FIG. 1. 1...Base material, 2...Magnetic layer, 3...
... Ink adsorption layer, 4 ... Adhesive, 5 ...
... Tint pattern layer, 6... Dirt prevention layer, T...
...Ink, 8...Organic resin, 9...
Filler with relatively few irregularities 10 Filler with relatively many irregularities.

Claims (1)

[Scope of utility model registration request] , a base material made of a plastic film or the like, an ink adsorption layer laminated in sequence on the base material and containing a filler that adsorbs a relatively large amount of ink, and a base material laminated on the ink adsorption layer,
Cards with a recording layer comprising a stain prevention layer containing a filler that adsorbs relatively little ink.