JP2622765B2 - Thermal magnetic ticket sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention comprises a paper support used for prepaid cards such as tickets, coupons, commuter passes, etc., betting tickets, gift certificates, voting tickets, cash vouchers, etc. Related to a magnetic ticket sheet.

[Prior Art] [Problems to be Solved by the Invention] As shown in FIG. 2, the structure of a conventional ticket having a magnetic recording layer is made of high-quality paper as a paper support 1 and a magnetic recording layer 2 on one surface thereof. And a structure in which a recording layer 3 such as a heat-sensitive recording layer and a protective layer 4 are sequentially provided on the other surface. Separated into two layers mainly with layer 2 and recording layer 3 and used illegally, that is, the magnetic recording layer side enters and exits by magnetic sorting like a single ticket, and the heat-sensitive recording layer side shows the face of the protective layer surface Accidents, such as entry and exit, were made use of.

[Means for solving the problem]

As a result of intensive studies in view of the above-mentioned circumstances, the present invention has been applied to unauthorized use because the conventional paper-based support is made of high-quality paper and is made of only one sheet of paper and can be easily separated into two sheets by hand. Paying attention to the defect that the paper support is easy, the paper support has a two-layer structure, and is joined via a polyolefin resin layer to form an integral structure.

As a result, even if the paper-based support is intended to peel the thermosensitive magnetic ticket sheet thinly on the front and back, one side will always be very thin, and some will have a part that remains adhered to the other side somewhere, resulting in paper breakage. As described above, it is impossible to cleanly separate the two sheets, and the accident that has occurred in the conventional magnetic ticket described above can be prevented. That is, the configuration of the present invention is 2
A paper substrate is formed by joining a sheet of paper substrate with an adhesive layer such as a polyolefin resin layer, and a magnetic layer is provided on the upper surface and a heat-sensitive recording layer is provided on the lower surface. Hereinafter, each constituent layer of the present invention will be described in detail.

<Paper base> Each of the paper substrates used here has a thickness of 50 to 15
0 μm high-quality paper is preferred, and coated paper having a coating layer on one or both sides can be used. In this coated paper, the coating layer has a function as a barrier layer and is directly magnetically coated on the paper support. When a recording layer or a heat-sensitive (color-forming) layer is provided, it is possible to prevent impregnation of a paper material support that is likely to occur with a paint,
This is preferable because non-uniformity of the coating amount can be prevented.

The thickness of the paper substrate adjacent to the magnetic recording layer is preferably
110 to 150 μm, and the thickness of the paper substrate adjacent to the heat-sensitive layer is 60 to
Preferably it is 90 μm. However, the thickness of the paper substrate is appropriately selected so that the thickness of the entire magnetic ticket sheet is 180 to 220 μm.

Next, when two paper substrates are joined with a resin, the adhesive strength can be improved by performing a corona discharge treatment on the joining surface.

<Resin Layer> In the present invention, a polyolefin resin is used as a bonding layer between two paper substrates, but the same resin is not affected by a solvent of a paint when forming a magnetic recording layer or a heat-sensitive recording layer.
In addition, it is selected because there is no problem in heating when forming the magnetic recording layer or the heat-sensitive recording layer or the use temperature of the product, and the necessary strength can be given to the magnetic ticket sheet.

The polyolefin resin layer (adhesive layer) used in the present invention includes polyethylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, ethylene-propylene copolymer, polypropylene and the like. A polyolefin-based resin may be used, but in order to bond two sheets of paper by a lamination method, a polyolefin is particularly preferable.

Further, the thickness of the adhesive layer is 5 to 20 μm, more preferably 10 to
15 μm.

<Magnetic Recording Layer> The magnetic recording layer in the magnetic ticket sheet of the present invention is a coating in which magnetic powder is uniformly dispersed in a binder such as a polyester resin, a vinyl chloride resin, a polyurethane resin, and a styrene-butadiene copolymer resin. Alternatively, it is formed by applying or printing an ink on a paper support or its coat layer.
Ferromagnetic substances such as γ-Fe ₂ O ₃ , barium ferrite, and strontium ferrite are used as the magnetic powder, but in order to prevent a problem that magnetic recording information is lost or attenuated by a normal permanent magnet, barium ferrite is used. It is preferable to apply a high coercive force material having a coercive force of 1500 to 5000 Oe, such as strontium ferrite. In order to improve smooth abrasion resistance, a surface layer made of nitrocellulose, polyurethane resin or the like can be further applied or printed on the magnetic recording layer.

<Thermal Recording Layer> In the case of a ticket, the date of issue, the boarding section, the amount of money, the name of the railway company, etc. are recorded and printed, and are composed of a thermosensitive recording layer such as leuco dye coloring or diazo thermal coloring.

When forming a thermosensitive recording layer of leuco dye coloring as a thermosensitive recording layer to be added to the magnetic ticket sheet of the present invention, conventionally known colorless or pale-colored leuco dyes, acidic substances and binders are used. Can be An example is shown below.

◇ Leuco dye crystal violet lactone, 3-indolino-
3-p-dimethylaminophenyl-6-dimethylaminophthalide, 3-diethylamino-7-chlorofluoran, 3-diethylamino-5-methyl-7-t-butylfluoran, 3-diethylamino-6-methyl-7 -Anilinofluoran, 3-diethylamino-6-methyl-
7-p-butylanilinofluoran, 3-diethylamino-7-dibenzylaminofluoran, 3-cyclohexylamino-6-chlorofluoran, 3-diethylamino-6-methyl-7-xyridinofluoran, 3- Pyrrolidino-6-methyl-7-anilinofluoran, 3-pyrrolidino-7-cyclohexylaminofluoran, 3-
Piperidino-6-methyl-7-toluidinofluoran,
3-pyrrolidino-6-methyl-7- (p-toluidino)
Fluoran, 3-piperidino-6-methyl-7-anilinofluoran, 3-N-methylcyclohexyl humino-
There are 6-methyl-7-anilinofluoran and 3-diethylamino-7- (n-trifluoromethylanilino) fluoran.

◇ acidic substances 4-phenylphenol, 4-t-butylphenol, 4-hydroxyacetophenone, α-naphthol,
β-naphthol, 2,2′-dihydroxydiphenyl, 2,
2'-methylbis (4-chlorophenol), 2,2'-methylenebis (4-methyl-6-t-butylphenol), methyl-4-hydroxybenzoate, benzyl-4-hydroxybenzoate, 4,4'-isopropylidene Bis (2-methylphenol), 4,4'-ethylenebis (2-methylphenol), 1,1'-bis (4'-
Hydroxyphenyl), cyclohexane, 4,4'-isopropylidenediphenol, 4,4'-cyclohexylidenebis (2-isopropylphenol), novolak-type phenol resin, 3-5-di-α-methylbenzylsartic acid , 4-hydroxybenzoic esters.

◇ Binders Casein, gelatin, styrene-maleic anhydride copolymer, polyvinyl alcohol, modified polyvinyl alcohol, starch, modified starch, isobutylene-maleic anhydride copolymer, diisobutylene-maleic anhydride copolymer, poly Acrylamide, modified polyacrylamide, carboxymethylcellulose, polyvinyl acetate, polystyrene, polyacrylate, vinyl chloride-vinyl acetate copolymer, styrene-butadiene copolymer.

Further, if necessary, other additives such as a fatty acid amide and a white pigment are added to the heat-sensitive recording layer composed of the leuco dye, the acidic substance, and the binder.

Further, a protective layer described below is provided on the magnetic recording and / or heat-sensitive recording layer constituting the magnetic ticket sheet of the present invention, if necessary.

Examples of the material used for the protective layer of the present invention include various water-soluble resins or organic solvent-soluble resins.

Examples of the water-soluble resin in this case include polyvinyl alcohol, polyvinyl pyrrolidone, modified polyvinyl alcohol, polyacrylamide, modified polyacrylamide, carboxymethyl cellulose, hydroxyethyl cellulose, and the like.

On the other hand, as the organic solvent-soluble resin, nitrocellulose, polyurethane, polyester, vinyl chloride / vinyl acetate copolymer, acrylic resin and the like can be applied. Further, for example, a fatty acid metal salt, a wax, a white pigment, and a waterproofing agent are added to the protective layer as needed. In the present invention, when the protective layer is provided on the heat-sensitive recording layer, it is preferably a water-soluble resin in order to prevent unnecessary coloring of the leuco dye.

Furthermore, the magnetic ticket sheet of the present invention may be provided with a printing layer as described below on the magnetic recording layer.

In other words, the printing layer referred to here is used to print, for example, a precautionary note or a picture pattern for producing an aesthetic appearance required as a magnetic ticket sheet, and printing on a black magnetic recording layer is performed using white or silver ink. Alternatively, the printing may be performed by providing a white hiding layer on the magnetic recording layer before printing, and then printing with a black ink on the hiding layer. The printing layer can be provided on the heat-sensitive recording layer.

<Example> Hereinafter, an example of the present invention will be described with reference to the drawings. However, the coating material of the coated paper used for the paper substrate is a paint obtained by adding a white pigment such as clay and calcium carbonate to polyvinyl alcohol.

Example 1 As shown in FIG. 1, a single-coated paper (13
0g / m ² , thickness 120μm) and its uncoated surface and paper substrate
The high-quality paper 1b (80 g / m ² , thickness 70 μm) is adhered by an adhesive layer 1c made of polyethylene resin, and a thickness of about 20
Paper support 1 consisting of a laminated paper of 0 μm was obtained. On the paper substrate 1a of the paper support 1, a magnetic recording layer paint having the following composition was applied at 50 m / m ² so as to have a solid content of 35 g / m ^2.
The coating composition was applied at a coating speed of min, passed through a magnetic aligner before the coating was dried, and dried to form a magnetic recording layer 2. On the other hand, on the paper base 1b of the bonded paper support 1,
Heat-sensitive recording layer paint consisting of the following composition, solid content adhesion 5.5 g
/ m ² and dried to form a heat-sensitive recording layer 3. Then, a protective layer coating for the heat-sensitive recording layer having the following composition is further applied thereon to a solid content of 4.0 g / m ^2. The magnetic ticket sheet of the present invention was obtained by drying and forming, and surface-treated with a super calender. All the blending parts show the weight ratio.

<Magnetic recording layer paint> <Heat-sensitive recording layer coating> Liquid A Liquid B Solution A and Solution B were each pulverized and dispersed by a pole mill for 24 hours, and then 5 parts of Solution A, 40 parts of Solution B, 5 parts of stearic acid amide (20% suspension), and an inbutylene-maleic anhydride copolymer ( 15 parts of a 20% aqueous solution) were mixed to prepare a heat-sensitive recording layer paint.

<Protective coating for thermal recording layer> After the above mixture was pulverized and dispersed by a pole mill for 24 hours, 3 parts of the mixture, 70 parts of polyvinyl alcohol (10% aqueous solution), 5 parts of polyamide resin, and 2 parts of fatty acid metal salt (20% suspension) were mixed. To give a protective layer paint.

Example 2 As shown in FIG. 1, single-coated paper (95 g / m ² , 95 μm in thickness) was used as the paper substrates 1 a and 1 b, and the uncoated surfaces were adhered to each other with an adhesive layer 1 c made of polyethylene resin. About
A paper support 1 consisting of a 200 μm lamination was obtained. On one side of the paper base 1a of this laminated paper, the magnetic recording layer paint shown in the above-mentioned Example 1 was applied under the same conditions as in Example 1 so as to have a solids adhesion amount of 35 g / m ^2. After orientation and drying to form a magnetic recording layer 2, the heat-sensitive recording layer paint shown in Example 1 was applied to a paper substrate 1b of a laminated paper at a solid content of 5.5 g / m ^2. After drying, the heat-sensitive recording layer 3 was formed, and the coating material for the protective layer of the heat-sensitive recording layer described in Example 1 was applied to a solid content of 4.0 g / m ² and dried to form the protective layer 4. The back side was treated with a super calendar to obtain a magnetic ticket sheet of the present invention.

Comparative Example 1 As shown in FIG. 2, high quality paper (15
7 g / m ² , thickness 200 μm), and the above-mentioned Example 1
Was applied under the same conditions as in Example 1 so that the solid content was 35 g / m ² , and the magnetic recording layer 2 was formed by magnetic orientation and drying. On the other hand, the other surface of the high-quality paper was coated with the heat-sensitive recording layer coating material shown in Example 1 in an amount of 5.5 g of solid content.
/ m ² and then dried to form a heat-sensitive recording layer 3, on which the protective layer coating of the heat-sensitive recording layer of Example 1 was applied to a solid content of 4.0 g / m ² , dried and protected. After forming the layer 4, the surface was treated with a super calender to obtain a comparative example (normal configuration) of the present invention.

Next, the JIS P
Based on 8139, evaluation was made of delamination property (difficulty of delamination), peel strength (measured with a Tensilon tensile tester), and peeling method. The results are shown in the table below.

According to this, it can be seen that the embodiment of the present invention is excellent.

<Effects of the Invention> According to the present invention, the paper support is formed as a whole by providing a resin layer in the middle of two layers of paper even if the magnetic ticket sheet is to be separated into two layers. Even if it is forcibly peeled off, even if it is forcibly peeled off, the part that adheres to one of the magnetic recording layer and the heat-sensitive recording layer always increases, and part of it adheres to the opposite side, and eventually the paper support is peeled off at the same thickness Since the pieces are broken, it is impossible to make them into two pieces.

 Therefore, unauthorized use can be prevented 100%.

[Brief description of the drawings]

FIG. 1 is a sectional view of a magnetic ticket sheet of the present invention, and FIG. 2 is a sectional view of a conventional example. 1a, 1b: Paper substrate, 1c: Resin layer (adhesive layer) 1: Paper support 2 ... Magnetic recording layer 3: Recording layer (thermal recording layer) 4: Protective layer

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-268126 (JP, A) JP-A-62-62798 (JP, A) Fully open Showa 50-50974 (JP, U) Really open Showa 62- 78474 (JP, U)

Claims (1)

(57) [Claims] 1. A paper support having a magnetic recording layer on one surface thereof,
In a heat-sensitive magnetic ticket sheet having a heat-sensitive recording layer on the other surface,
A thermosensitive magnetic ticket sheet characterized in that the paper support is formed by bonding two layers of paper via a polyolefin resin layer.