JPS5835731A - Magnetic card manufacturing method - Google Patents

Abstract

PURPOSE:To stabilize the movement of a reader at reading, by providing minute rugged parts on the surface of a magnetic substance layer. CONSTITUTION:On a flaky base of plastic film or sheet, metallic foil or paper in which the area of projected part is more than the recessed area and pitch of rugged parts is 0.1-20mum, a flaky layer, a protection layer, a magnetic substance layer, and an adhesives layer are provided to form magnetic transfer sheet, and after overlapping the adhesives layer and the base of the magnetic transfer sheet, they are bonded by using a heat roll or a thermal press. Then, the base of the sheet is exfoliated to obtain a magnetic card, on the magnetic substance layer or the protection layer of which minute rugged parts having opposite relation to that on the surface of the base of the magnetic transfer sheet is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a magnetic card, and more specifically to a method for manufacturing a magnetic card, in which microscopic irregularities are provided on the magnetic surface of the card to stabilize the movement of the reader during reading. Regarding the method.

A magnetic card is a plastic or paper sheet with 1 ton of magnetic material that can be recorded and reversed at once.It is used in various terminals and can be used as cash cards,
and train tickets, hospital tickets, expressway passes, ■ Academic training 1
Rumors about the card are widespread. -2 For the input/output to the magnetic card as in the above example, automatic input/output *l1svps is employed, and the input/output is performed reliably since the running control system is taken into consideration. On the other hand, in process control cars, Po1l card keyboards, etc., which have been widely used in recent years, a pen-shaped device with a head attached to the tip is held in the hand and moved over the magnetic layer of the magnetic card. Since it is convenient to output/re-11w, yF readers are often used as sentries to such areas, but the automatic input/output WsIII described above
Compared to the case of IvA, the movement of the head at once on the top is significantly unstable. The biggest cause of instability of movement V is l! There is friction between the air head and the zesis, which is often provided on the air layer or the magnetic layer, and when observed, there is a limit to which the car trying to move the leader will suddenly move. Due to the two factors of the dowader starting and stopping, ^
/Fff-da is 1 This is undesirable because it may cause the noise to be played back, or may cause false recognition.

The present inventor attempted to improve the above-mentioned conventional drawbacks by smoothing the magnetic layer or the resistance to damage on the magnetic layer, but smoothing did not improve the conventional drawbacks; It has been discovered that the drawbacks of the conventional method can be eliminated by providing minute irregularities to the magnetic layer or the magnetic layer provided on the magnetic layer. In addition, the structure of *-light is too similar to the transfer printing method using a matte transfer sheet V#4 in the printing field; It gives a feeling of
The effects of the present invention were unexpected from such transfer printing methods.

The present invention will be explained in detail below.

The releasable substrate used in the present invention is a material having minute irregularities on the surface, such as imine, cellulose diacetate, roulose acetate, bostyrene, polyester, etc., which have excellent heat resistance and dimensional stability. It can be used to form minute irregularities on the surface of a plastic film or sheet such as , Bopp Robylay, polyester, Boimide or Bocker Bonate by the nano-dobbing method, the entrainment method of granular fillers, or the embossing method. Preferably, the surface area occupied by the convex portions is 10/Eml.

As a removable substrate, metal foil, paper, or other materials such as those and plastic films may be provided with minute irregularities Y by an appropriate method. ! ! ! In addition to the methods described above, methods for imparting unevenness may include etching of a metal foil, printing, or a coating method using a paint formed by applying scattered fillers.

A known releasable layer, a protective layer, a magnetic layer, a contact agent, etc. are provided as necessary on the releasable substrate having minute irregularities 1 on the surface to form a magnetic transfer sheet.

For example, the releasable material may be one made mainly of Bot methyl methacrylate resin Y and further warmed with vinyl chloride-vinyl acetate co-adhesive, nitrocellulose resin, Bot ethylene wax, Shiwoko Y oil, etc., or cellulose acetate. Products made by combining cellulose resins such as butyrate resins and cellulose acetate resins, thermosetting resins such as epoxy resins, phenol resins, melamine resins, and polyurethane resins, or pofethylene wax, and Shitsuko Y Oil V. However, materials other than these may also be used, and are selected and used so that the peel strength with the support is smaller than the peel strength with the adhesive, which will be described later. In addition, as a method for providing the primary release-V support, known coating methods such as gravure roll coating method, roll coating method, air knife coating method, wire barcoding method, curtain flow coating method, etc. The coating amount is 11~&0.
I like the voice.

Examples of 1III include polyurethane resin, vinyl chloride-vinyl acetate copolymer resin, vinyl acetate resin, f
! : 5 Etele y wax etc. can be formed by using V-benzene warmer V, but other materials may also be used. Please consider and choose carefully.

In addition, methods for applying the heating layer on the peeled surface include the gravure roll coating method, roll coating method, air knife coating method, wire perput method, curtain flow coating method, etc. The coating film thickness is from A5 to Two voices are preferred.

As the single layer, one composed of a known magnetic coating material V can be used, and such a magnetic coating material can be prepared using a suitable vehicle, such as butyral resin, vinyl chloride-vinyl co-electrical resin, Creta Y resin, Polyester tree 11. A cellulose resin, an acrylic resin, a rubber resin such as nitrile resin as a binder, various elastomers such as urethane elastomer, and carbon black as an antistatic agent, as appropriate. -shi@20
5,00 containing 7820g, Fe3O4, Balaram ferrite (Bat)4Fθ2O5>s Strondium ferrite (8rO-676203), C05lll-Pea
Or alone or alloy, rare earth Cog body column r02
In addition to vehicles, magnetic substances, surfactants, silane coupling agents, lubricants, waxes, oils, carpons, and other substances, Pigment V Add as needed, 3*
A product V obtained by kneading with a roll, Nando mill, ball mill, etc. can be used. Also when forming 1Ilv, the above-mentioned method V can be used as a method for forming peeling 11v.

Alternatively, as a method of providing magnetic 11V, F., N1%
Oo, Or alone or their alloy or A, NL
, Do, Or oxides or their S-containing oxides V
It may be provided by a steaming method, an oblique MS method, a sputtering method, an ion plating method, an electroless plating method, an electrolytic plating method, or any method may be used.

Examples of the dressing include vinyl chloride/#sun vinyl co-electrified adhesive, ethylene/#acid vinyl co-electrified plaster, vinyl chloride/#acid vinyl co-electrified plaster,
It can be formed by mixing propionic acid copolymer, rubber-based co-adhesive, etc., and if necessary, animal oil 111 can be used as an antifoaming agent.
1I conductor i, non-ionic y[lr activator [1] may be added (also, the application method is ale coat, gravure coat, tupah coat and other usual coating methods, or offset , gravure, soufflen printing, etc. *V[Can be used.

A method of transferring onto a base material using the above-described one-shot transfer sheet will be explained.

- Pneumatic transfer printing VtS Punching into a suitable shape or base [! Place the vagina in a half-opened state and overlap the S air transfer sheet so that the adhesive and the base material are in contact with each other. In this way, transfer 1 is performed by peeling off the substrate.
By doing this, minute irregularities with the opposite shape to the minute irregularities on the surface of the sheet are transferred all at once, forming the magnetic layer or the SL! A magnetic card i formed on the layer is obtained.

By having the above-described structure, the present invention allows minute irregularities formed on the magnetic surface provided on the card surface or the surface of the protective layer provided on the magnetic layer to be completely removed compared to the case of a smooth surface. In comparison, the contact area with the hend reader attached to the tip of the magnetic head V is small, so the hend reader moves smoothly and does not generate vibration.
^y Noise may be generated when outputting the dodder V,
Since there is no risk of W4 recognition, it is used when manually performing one playback.

Examples for more specific explanation will be given below.

Example: Matted Bossester film C with a thickness of 36 mm
A matte image with an uneven surface with a pitch of about 5P was formed using a gravure method using a peelable paint V made by adding Potsuedelen Wax I to cellulose acetate resin. , then urethane St
After forming a protective layer 1-1 with a thickness of 2 layers using a gravure method using a sushi-based material, a BaO-4F820B-based columnar Y-chloride-vinyl-acetate-coated resin-based binder is dispersed. Magnetic 11v by gravure course method using magnetic paint V
-, and further applied an ionomer heat sealing agent using the gravure course method to form a heat V-ru, and as described above, a transfer film V was created at once.Meanwhile, as a base material, a 178 mm thick Basis weight 141 f7W
Paper [Information Exchange Paper Ord 1X80-6244IIf4
4=14JV was used and placed.

One line of transfer was performed by the heat roll method so that the heat seal layer of the air transfer film was in contact with the surface of the statistical card prepared as described above, and the film was peeled off to obtain a magnetic card.

On the other hand, in the same manner as the above magnetic card, but using a clear film having a thickness of V* for the substrate of -air transfer ν-F,
The following magnetic cards were created in the same manner.

The results of one playback using the above two types of magnetic statistical cards vwI were as follows.

Patent issuer: Dai Nippon Printing Co., Ltd.

Claims (1)

[Scope of Claims] A method for manufacturing a magnetic card, in which a magnetic transfer sheet formed by forming a single layer, a adhesive, etc. on a removable substrate is transferred to a card base material. Peelable substrate vv with minute irregularities i on its surface! A method for manufacturing a card at once, characterized in that it is used.