JPH09118083A - Transfer recording medium to be heated - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording medium in which adherence to a base material of an image receiving layer and a pattern layer, abrasion resistance of the pattern layer, chemical resistance, stain resistance and gate resistance for an automatic wicket system are excellent. SOLUTION: An image receiving layer 2 and pattern layers 5 are formed on the face on one side of a base material 1. The dot percent of the pattern layer 5 is >=60% and the number of its line consists of 70-200 lines and these lines are formed so as to cover the image receiving layer 2. The pattern layers 5 have at least two pieces of epoxy groups, oxirane group or ethoxyline group and contain resin whose epoxy equivalent is 1200-2700 as a main component. 0.5-10wt.% polyester resin in which glass transition point (Tg) is 50-80 deg.C is contained to raise adherence of the image receiving layer and the pattern layer. Therefore, adherence to the material is good and abrasion resistance, chemical resistance and stain resistance of the pattern layer are excellent. A transfer recording medium to be heated is easily produced at a low cost and has excellent design properties and is suitable for an automatic wicket.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a pattern layer which can be transferred and printed by a resin-melting type ink ribbon, and is a coupon ticket or a commuter ticket etc. for repeated use at an automatic ticket gate installed at an unmanned station. The present invention relates to a heat transfer transfer recording medium for an automatic ticket gate, in which the pattern layer has an image receptivity, and the pattern layer has improved abrasion resistance and design.

[0002]

2. Description of the Related Art In recent years, along with the automation of ticket gates on railways, etc., an automatic ticket gate system has been rapidly introduced, and the number of tickets or commuter tickets currently in use are also becoming recording media compatible with these ticket gate systems. The number of railways that are installing unmanned stations along with the automation of ticket gates is increasing.

Conventionally, this type of recording medium is intended for repeated use (long-term use) many times, such as a coupon ticket and a commuter ticket. It needed physical strength to withstand repeated use.

Further, the recording medium is required to have an image-receiving layer which receives the ink of the resin-melting type ink ribbon and easily forms characters and the like, and the stain resistance, abrasion resistance, plasticizer resistance and chemical resistance thereof. It is required that the magnetic recording layer has excellent property, the adhesion between the image receiving layer and the pattern layer, and the recording stability of the magnetic recording layer provided on the surface opposite to the image receiving layer during magnetic recording.

Further, in consideration of use in an unmanned station, an image receiving layer for receiving the effective period of the recording medium, and the like,
The pattern layer for identifying transportation such as railways that uses the recording medium is that there is no trouble in the transport system of the automatic ticket gate system (gate resistance) rather than tampering of the recording medium,
It is also required to improve the stain resistance and abrasion resistance of the recording medium.

It is desirable that the visual information such as the effective period printed on the image receiving layer of the recording medium can be recognized during the usable (effective) period of the recording medium without blurring or disappearing by use. For the purpose of preventing falsification of visual information such as the printed effective period, a pattern layer made of a tint block or the like was formed on the image receiving layer.

In order to prevent tampering with visual information such as the effective period printed on the image receiving layer using an eraser or the like, the pattern layer made of the tint block or the like contains a resin material different from that of the image receiving layer as a main component, It was printed on the layer.

[0008]

In the conventional recording medium,
When a desired character, number, symbol or the like (hereinafter referred to as “characters”) is printed on the image receiving layer of the recording medium using the resin-melting type ink ribbon, the image receiving layer has the ink transferability of the resin-melting type ink ribbon. Therefore, the pattern layer is made to have low adhesion to the image receiving layer to prevent falsification of visual information such as the effective period using an eraser etc. In addition, it was composed of a resin material different from that of the image receiving layer.

Therefore, although the resin material used for the image receiving layer and the resin-melting type ink ribbon is mainly composed of a thermoplastic resin, the printability on the image receiving layer is excellent,
It has low abrasion resistance, chemical resistance, stain resistance, etc., and low gate resistance against automatic ticket gate systems. Addition of additives to improve these properties, or UV curable or electronic materials for the resin that constitutes the image receiving layer By using wire-curable resin as the main component, abrasion resistance, chemical resistance, stain resistance, etc. and gate resistance to the automatic ticket gate system were improved, but those resins in a completely cured state should be used. When used as an image receiving layer, there was a drawback that clear printing could not be performed.

Further, it has been proposed to use a thermosetting resin as a resin constituting the image receiving layer, but if the reaction of the thermosetting resin is not sufficient at the time of forming the coating film of the image receiving layer, the unreacted curing agent is used for recording. The reaction progresses when the medium is stored or when the recording medium is used, and the printing becomes unclear when the recording medium is issued. When the recording medium is used, the abrasion resistance, chemical resistance, stain resistance, etc. of the image receiving layer and the automatic ticket gate system It was difficult to obtain a recording medium of stable quality because the gate resistance against the change.

Further, for the purpose of preventing tampering with the recording medium, a pattern layer such as a tint block formed on the image receiving layer is, for example,
When the characters erased on the image-receiving layer of the recording medium with a plastic eraser were erased and tampered with, the pattern layer was easily erased before the characters were printed. , The gate resistance to the automatic ticket gate system was low.

Therefore, the ink-receiving property, stain resistance, abrasion resistance, plasticizer resistance and chemical resistance of the resin-melting type ink ribbon for the image-receiving layer of a recording medium intended for repeated use many times. Excellent adhesion of the recording medium and the image receiving layer, recording stability during magnetic recording on the magnetic recording layer provided on the surface opposite to the image receiving layer, and troubles in the transport system of the automatic ticket gate system. Development is desired.

It is an object of the present invention to provide a thermal transfer recording medium for an automatic ticket gate equipped with an image receiving layer capable of printing characters and the like with a resin melting type ink ribbon which has been conventionally used, and a resin for the image receiving layer. The image-receiving property of the melt-type ink ribbon, the coating film strength of the image-receiving layer, and the adhesion between the substrate and the image-receiving layer and between the image-receiving layer and the pattern layer are good, and the pattern layer has excellent abrasion resistance, chemical resistance, and stain resistance. At the same time, another object of the present invention is to provide a thermal transfer recording medium suitable for an automatic ticket gate, which is excellent in design, easy to manufacture, and inexpensive.

Further, a heat transfer recording medium suitable for an automatic ticket gate, which is excellent in the image receiving property of the pattern layer, the coating film strength, the abrasion resistance of the pattern layer, the chemical resistance and the stain resistance, and also the design property is provided. To provide.

Further, when an attempt is made to erase a character printed on the pattern layer using ethanol or the like, the pattern layer is erased at the same time as the character, so that the printed character can be prevented from being tampered with. To provide the medium.

[0016]

A thermal transfer recording medium suitable for an automatic ticket gate according to the present invention is a thermal transfer recording medium having an image receiving layer provided on one surface of a substrate and a pattern layer provided on the image receiving layer. And the halftone dot area ratio of the pattern layer is 60% or more and the number of lines is 7
0 to 200 lines, formed so as to cover the image receiving layer,
The pattern layer has two or more epoxy groups, oxirane groups or ethoxyphosphorus groups, and has an epoxy equivalent of 1200 to
2700 as a main component, and having a glass transition point (Tg) of 50 to 80 ° C. to enhance the adhesion between the image receiving layer and the pattern layer.
0.5 to 10% by weight of the polyester resin is included.

The resin forming the pattern layer in order to improve the printability, scratch resistance and abrasion resistance of the substrate and the image receiving layer and between the image receiving layer and the pattern layer is the same resin material as the resin forming the image receiving layer. I am using.

The term "pattern layer" as used herein refers to a generic name of a layer of desired characters or figures, or a layer of repeating tint block.

[0019]

EXAMPLES Examples of the present invention, in which a heat-transferred recording medium suitable for an automatic ticket gate is applied to a commuter ticket, will be described below.
The following is a detailed description with reference to the drawings.

FIG. 1 and FIG. 2 are schematic views showing a main part of an embodiment when applied to a commuter pass according to the present invention. In each drawing, the same symbols are used to represent the same idea. Further, in FIGS. 1 and 2, the pattern layer 5 is represented by a solid line portion, but as described above, halftone dots (halftone dot area ratio 6
0% or more).

In FIGS. 1 and 2, an image receiving layer 2 is provided on one surface of a base material 1 which becomes a commuter pass 6, a pattern layer 5 is provided on the image receiving layer 2, and magnetic recording is provided on the other surface. Layer 3 is provided. Characters and figures such as desired cautionary notes are provided on the magnetic recording layer 3 of the base material 1 which becomes the commuter pass 6 (not shown). The image receiving layer 2 and the pattern layer 5
And the magnetic recording layer 3 is formed on the substrate 1, and the magnetic recording layer 3
After the letters such as cautionary notes are provided on the top, the commuter pass 6 is punched out into a desired shape.

[Material (Material) of Each Layer] As the base material 1, for example, a paper material such as synthetic paper, fine paper, coated paper or the like having a thickness of usually about 100 to 300 μm, polyester-based resin, polyamide-based resin, poly (meta) ) Acrylate resin, polyvinyl chloride resin, polyvinylidene chloride resin, polycarbonate resin, polyvinyl acetate resin, polyolefin resin, polystyrene resin, ABS resin, AS resin, MBS resin, polyphenylene ether resin Examples thereof include resins and polysulfone-based resins. Among these, polyester-based resins such as polyethylene terephthalate (PET) resin, polybutylene terephthalate (PBT) resin, polyvinyl chloride (PVC) resin, polycarbonate (PC) resin, Polyolefin (PO) resin is used many times Preferred is provided with the strength to accommodate. The material forming the base material 1 can be selected to have an arbitrary thickness depending on the application.

As the magnetic recording layer 3, a magnetic recording material conventionally used for a magnetic recording medium such as a prepaid card can be used, and such a magnetic recording material has, for example, a particle diameter of 10 μm or less. And preferably 0.0
1-5 μm Ba-ferrite, Sr-ferrite, and Co-deposited γ-Fe ₂ O ₃ and γ-Fe as acicular iron powder.
₂ O ₃ can be used depending on the application.

As the resin (binder resin) for binding the material for magnetic recording, for example, polyester resin, alkyd resin, vinyl resin, polyurethane resin or mixed resin thereof can be used. The mixing ratio of the magnetic recording material and the resin to be combined is appropriately designed in consideration of the adhesiveness with the substrate 1, the coating film strength, the detection voltage of the magnetic head, and the like. Material: Resin to be bound = 1: 1 to 10: 1 is preferable, 3: 1
A range of up to 6: 1 is more desirable.

The thickness of the magnetic recording layer 3 is usually designed to be about 5 to 20 μm in consideration of the voltage detected by the magnetic head.

As the resin constituting the image receiving layer 2, a bonded epoxy equivalent of 1 such as phenol type glycidyl ether type, alcohol type glycidyl ether type, glycidyl ester type, glycidyl amine type or a mixture thereof is used.
200-2700 resins can be used.

When the epoxy equivalent is less than 1200, sticking occurs due to the heat of the thermal head TH at the time of printing, and when the epoxy equivalent is more than 2700, the printability of the image receiving layer 2 is lowered (printed). It is not preferable because the characters or the like may be blurred or the characters or the like on the image receiving layer 2 may be easily erased.) And the adhesion between the image receiving layer 2 and the pattern layer 5 may be deteriorated.

The image receiving layer 2 has a glass transition point (Tg) of 50 to 80 ° C. in order to enhance the adhesiveness (adhesiveness) between the substrate 1 and the image receiving layer 2 and prevent deterioration of printability. A thermoplastic resin such as a polyester resin is added in an amount of 0.5 to 10% by weight. As the addition amount of this thermoplastic resin, for example, 1
In the range of 3 wt% to 3% by weight, the physical properties such as coating strength of the image receiving layer 2 are not deteriorated, and the adhesion between the substrate 1 and the image receiving layer 2 and between the image receiving layer 2 and the pattern layer 5 is made printable. It is desirable because it can be realized without lowering.

The thickness of the image receiving layer 2 is, for example, 1 to 10 μm.
The degree is good, and particularly in the range of 4 to 6 μm, the coating film (layer) strength of the image receiving layer 2 is excellent and the abrasion resistance and the image receiving property are good, which is desirable. As the resin forming the pattern layer 5, a resin material having the same composition as that used for the image receiving layer 2 is used.

The image receiving layer 2 and the pattern layer 5 prevent troubles in the transport system of the automatic ticket gate system, and the image receiving layer 2
And it is desirable to add a lubricant in order to enhance the abrasion resistance of the tint block layer 5. As such a lubricant, higher fatty acids or salts thereof, polyethylene wax, paraffin wax and the like can be used, for example, 1 to 10% by weight.
It is desirable to add it in the range of 1) because the abrasion resistance is improved without lowering the adhesion between the substrate 1 and the image receiving layer 2 and between the image receiving layer 2 and the pattern layer 5 and the printability is not deteriorated.

The pattern layer 5 has a halftone dot area ratio of 60% or more for the purpose of improving the design. Therefore, if the number of lines is less than 70, there are restrictions on the characters and figures that can be designed on the pattern layer 5. Or, there is a step between the pattern layer 5 and the image receiving layer 2 and the printing quality is poor, and if it is larger than 200 lines, the image area for forming characters or figures designed on the pattern layer 5 is cut off. It is not preferable because the reproducibility is poor.

[Example 1] As a substrate 1, a white polyethylene terephthalate (PET) sheet [manufactured by Toray Industries, Inc .:
E-22 (Width 410 mm x Length 400 m x Thickness 188
μm)] on one side with a coercive force of 27 as a material for magnetic recording.
50 Oe (Oe: Oersted) Ba-ferrite and an acrylic resin emulsion are dispersed and mixed to form a magnetic paint, and this magnetic paint is dried with a gravure coater to a film thickness of about 10
The magnetic recording layer 3 was formed to have a thickness of μm (not shown). The physical characteristics of the magnetic recording layer 3 at this time were a residual magnetic flux of 1.2 (Mx / cm) and a squareness ratio of 0.85.

Next, a coating composition having the following composition was thoroughly stirred by a high-speed propeller stirrer, and then coated on the substrate 1 by the gravure reverse method under the conditions of a conveying speed of 30 m / min and a drying temperature of 120 ° C., and a dried thickness. An image receiving layer 2 having a thickness of about 5 μm was obtained. At this time, the surface smoothness of the image receiving layer 2 was set to an average roughness of 0.1 to 0.3 μm in consideration of printability and adhesion of the pattern layer 5 (the surface smoothness of the image receiving layer 2 is Kosaka. SE-3F manufactured by Co., Ltd.
Measured in K. ).

[Composition of Image Receiving Layer 2] Epoxy resin (solid content 30%: epoxy equivalent 1750 to 2200) [Brand name: Epicoat 1007 (produced by Yuka Shell Co., Ltd.)] 59.0% by weight Polyester Resin (solid content 30%: glass transition point (Tg) 67 ° C.) [Brand name: Byron 200SS (manufactured by Toyobo Co., Ltd.)] 3.0 wt% Lubricant (polyolefin wax) [Brand name: Ultra Fine SL-551 (manufactured by San Nopco Co., Ltd.)] ··· 7.6% by weight · Solvent Methyl ethyl ketone ··· 15.3% by weight Methyl isobutyl ketone · · 9.0% by weight Propylene glycol mono-ethyl ether · · 6.1% by weight %

Next, a coating composition having the following composition was sufficiently stirred with a high-speed propeller stirrer, and then the pattern layer 5 was transferred onto the image-receiving layer 2 by a gravure printing method at a conveying speed of 10 m / min and a drying temperature of 1.
After printing at 10 ° C., a pattern layer 5 having a dry thickness of about 0.5 μm is formed, and the magnetic recording layer 3 is printed as desired, such as cautionary notes, and then punched to the size of a commuter pass specified in the cybernet standard. I got a commuter pass 6 (not shown). The gravure printing plate at this time had a dot area ratio of 60% and a line number of 150.
Designed to consist of lines, any pattern is formed.

[Composition of pattern layer 5] Epoxy resin (solid content 30%: epoxy equivalent 1750 to 2200) [Product name: Epicoat 1007 (produced by Yuka Shell Co., Ltd.)] 68.1% by weight Polyester Resin (solid content 30%: glass transition point (Tg) 67 ° C.) [Brand name: Byron 200SS (manufactured by Toyobo Co., Ltd.)] ... 3.7 wt% -Lubricant (polyolefin-based WAX) [Brand name: Ultra Fine SL-551 (manufactured by San Nopco Co., Ltd.)]-3.7 wt% -Coloring material [Product name: Microlith Blue (manufactured by Ciba-Geigy Co., Ltd.)]-9.0 wt% -Methyl ethyl ketone solvent- 5 wt% xylene ··· 2.0 wt%

[Comparative Example] As a comparative example, an example in which the tint block layer 5 having low abrasion resistance is provided on the image receiving layer 2 will be described below.

Since the substrate 1, the image receiving layer 2 and the magnetic recording layer 3 are the same as in Example 1, their explanations are omitted here.

Next, a coating composition having the following composition was sufficiently stirred with a high-speed propeller stirrer and then printed on the image-receiving layer 2 by the gravure printing method under the conditions of a conveying speed of 10 m / min and a drying temperature of 110 ° C. Providing a 0.7 μm pattern layer 5 ′,
After performing desired printing such as notes on the magnetic recording layer 3,
A stamped commuter pass 6'was obtained (not shown) in the size of the commuter pass specified in the cybernet standard.

The gravure printing plate at this time is designed so that the dot area ratio is 60% and the number of lines is 150 lines.
Arbitrary patterns were formed.

[Composition of the tint block layer 5 ']-Vinyl chloride resin (100% solid content) [Product name: VAGH (manufactured by Union Carbide Corporation)]-21.6% by weight-Coloring pigment [Product name: Microli Thread (manufactured by Ciba-Geigy Co., Ltd.)] ··· 9.0 wt% · Solvent Methyl ethyl ketone ·· 34.7 wt% Toluene · · 34.7 wt%

The commuter pass 6 and 6'was printed on the image receiving layer 2 by the thermal transfer method shown in FIG.

In FIG. 2, characters are printed on the surface of the image receiving layer 2 of the commuter passes 6 and 6'by using a thermal transfer ribbon TR with a thermal head TH of a thermal transfer printer (barcode printer B-30 manufactured by TEC Co., Ltd.). When the thermal transfer printing test was conducted by transferring visual information such as commuter pass 6
It was possible to print clear characters on both 6 and 6 '.

Further, with respect to these Examples 1 and Comparative Examples, tests were conducted on the adhesion between the substrate 1 and the image receiving layer 2 and the adhesion between the image receiving layer 2 and the pattern layers 5 and 5 '.

Regarding the adhesion between the substrate 1 and the image receiving layer 2 and the adhesion between the image receiving layer 2 and the pattern layers 5 and 5 ', JIS
It was evaluated by a cross-cut test defined by K5400.

Regarding wear resistance, the commuter passes 6 and 6 '
The state of the printed surface when a load of 4 kg / cm ² was applied from above the white cloth piece to the printed surface and was reciprocated 3000 times was visually evaluated.

Regarding the chemical resistance, the commuter passes 6 and 6 '
The state of the printed surface when the printed surface was rubbed 20 times with gauze to which ethanol having a purity of 95% or more was attached was visually evaluated.

Regarding the stain resistance, the commuter passes 6 and 6 '
4Kg / c from above through the magnetic head on the print surface of
The state of the printed surface when a load of m ² was applied and reciprocated 3000 times was visually evaluated.

Regarding the plasticizer resistance, printed commuter pass 6
And 6'in a soft pass case (manufactured by Kokuyo Co., Ltd.), applying a load of 200 g / cm ² at 40 ° C., 90% H
The state of the printed surface when left for 72 hours in the environment of R (humidity) was visually evaluated.

Regarding the gate resistance, printed commuter pass 6
The state of the printed surface was visually evaluated when 6 and 6'were passed through the gate of the automatic ticket gate 3000 times.

With respect to the commuter pass 6 of Example 1, the printing condition on the image receiving layer and the pattern layer was good as described above, and the adhesion, abrasion resistance, chemical resistance, stain resistance, and plasticizer resistance were good. Both the evaluation of the gate resistance and the gate resistance were good.

However, the commuter pass 6'of the comparative example was good in the printing state on the image receiving layer and the pattern layer, the chemical resistance and the plasticizer resistance as described above, but the adhesiveness and the resistance were good. Regarding the abrasion resistance, stain resistance, and gate resistance, the printed surface had scratches, and the printed characters were blurred.

In the commuter pass of the present invention, the type of ticket,
History information such as used recording is magnetically recorded on an information track (not shown) of the magnetic recording layer 3, and recording / reproduction of magnetic information on / from the information track is performed by a commonly used method.

[0054]

As described above, the thermal transfer recording medium of the present invention is a thermal transfer recording medium in which an image receiving layer is provided on one surface of a substrate and a pattern layer is provided on the image receiving layer. Has a dot area ratio of 60% or more and a number of lines of 70 to 200, and is formed so as to cover the image receiving layer, and the pattern layer has two or more epoxy groups, oxirane groups or ethoxyphosphorus groups, The main component is a resin having an epoxy equivalent of 1200 to 2700, and 0.5 to 10% by weight of a polyester resin having a glass transition point (Tg) of 50 to 80 ° C. is included in order to improve the adhesion between the image receiving layer and the pattern layer. Because it is characterized by
A thermal transfer recording medium with good adhesion to the base material, excellent abrasion resistance, chemical resistance and stain resistance of the pattern layer, easy manufacturing, low cost, excellent design and suitable for automatic ticket gates. Can be provided. Furthermore, when an attempt is made to erase a printed character in the pattern layer using ethanol or the like, the pattern layer is erased at the same time as the character, so that the printed character can be prevented from being tampered with.

Since the pattern layer does not contain a curing agent for curing the thermosetting resin, the pattern layer of the thermal transfer recording medium becomes stable against changes with time, and the printing becomes unclear when the recording medium is issued. A heat transfer recording medium of stable quality can be obtained without changing the abrasion resistance, chemical resistance, stain resistance, etc. of the pattern layer and the gate resistance to the automatic ticket gate system when the recording medium is used. .

Further, it is possible to print on the pattern layer, and the printing becomes clear.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a commuter pass according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram in which printing is recorded on the commuter pass of FIG.

[Explanation of symbols]

 1 Base Material 2 Image Receiving Layer 3 Magnetic Recording Layer 5, 5'Patterned Layer 6, 6 'Commuter Ticket TH Thermal Head TR Thermal Melting Ink Ribbon

Claims (5)

[Claims] 1. A thermal transfer recording medium comprising an image receiving layer provided on one surface of a substrate and a pattern layer provided on the image receiving layer, wherein the pattern layer has a halftone dot area ratio of 60% or more. Is 70 to 20
A thermal transfer recording medium, which is composed of 0 lines and is formed so as to cover the image receiving layer. 2. The pattern layer comprises two or more epoxy groups,
A polyester having an oxirane group or an ethoxyphosphorus group and having an epoxy equivalent of 1200 to 2700 as a main component, and having a glass transition point (Tg) of 50 to 80 ° C. in order to enhance the adhesion between the substrate and the image receiving layer. 0.5 ~ resin
The transfer recording medium according to claim 1, wherein the transfer recording medium comprises 10% by weight. 3. The thermal transfer recording medium according to claim 1, wherein the pattern layer does not contain a curing agent for curing a resin as a main component. 4. The thermal transfer recording medium according to claim 1, wherein the pattern layer contains 5 to 10% by weight of a dye or pigment for coloring. 5. The thermal transfer recording medium according to claim 1, wherein a magnetic recording layer is provided on the other surface of the base material.