JP2002059653A - Transparent rewrite card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent rewrite card which is suitable for the use in the industry for which a corporate image or a brand image is respected particularly, e.g. the industry of cosmetics, medical service, beauty culture, hairdressing, jewelry, etc., which makes a card user feel cleanliness, of which the feel of transparency enables a card issuer to increase the degree of freedom of expression and which makes it possible to see rewritable information presented thereon, from both the surface and rear sides and thus enhances the convenience of the card user. SOLUTION: In the card constituted of a card base having a reversible thermal recording layer capable of presenting visual information rewritably, the reversible thermal recording layer is formed of a rewritable leuco dye layer, while the card base is formed of a base material having transparency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent rewritable card comprising a card substrate having a rewritable reversible thermosensitive recording layer, and particularly to, for example, cosmetics, medical treatments, cosmetics, and the like.
The present invention relates to a transparent rewritable card suitable for use in various industries in which a corporate image and a brand image are emphasized, such as a barber, jewelry, and the like.

[0002]

2. Description of the Related Art Conventionally, cards such as membership cards, credit cards, cash cards, point cards, and the like have been used for various purposes in various industries. Most of these cards are plastic cards, and are generally laminated with two white core sheets made of vinyl chloride having a printed layer of various designs on the surface,
Using a card base material which is formed by superposing a transparent oversheet made of vinyl chloride on both front and back sides of these two white core sheets, placing them on a hot press device, and applying heat and pressure from above and below. There are many. A variety of information can be visually displayed by providing a rewritable rewritable recording layer capable of rewritably displaying visual information at a predetermined position on the surface of the transparent oversheet.

[0003] However, in the above-mentioned card, there is a danger that the appearance of the card will become dull due to the discoloration of the ink in the printing layer after a long time has passed since the card was produced. Industries such as cosmetics, medical care, beauty, barber, jewelry,
In such industries, there are many customers who always want to be beautiful, always healthy, always clean, etc. is there. Therefore, some of these card issuers tend to require a degree of freedom in terms of design and information to be displayed on the card in addition to a sense of cleanliness due to the sense of transparency, and conventional cards must satisfy those requirements. There is also a problem that can not be.

Further, in the conventional card, although only a transparent oversheet located on the outside of the card base material constituting the card has transparency, the card has a white core sheet inside the transparent oversheet. The display information displayed on the rewritable recording layer provided in the rewritable recording layer cannot be viewed from both sides of the card, and it is sometimes inconvenient to check the display information on the rewritable recording layer immediately.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to provide a business in which corporate image and brand image are particularly important, such as cosmetics, medical care, beauty, barber, jewelry, etc.
It is suitable for use in industries such as, etc., it gives the card user a sense of cleanliness, and the transparency allows the card issuer to have more freedom of expression, and the card has a rewritable display Provided is a transparent rewritable card that allows information to be viewed from both the front and back sides of the card, thereby improving the convenience of the card user.

[0006]

A transparent rewritable card according to the present invention is a rewritable card comprising a card base having a reversible thermosensitive recording layer capable of displaying rewritable visual information. Is formed of a rewritable leuco dye layer, and the card substrate is formed of a transparent substrate.

The card substrate is characterized in that a plurality of sheet-like substrates having transparency are laminated and bonded.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of a transparent rewritable card according to a first embodiment of the present invention, and FIG.
FIG. 3 is a sectional view taken along the line BB of FIG.
FIG. 5 is a plan view showing a state in which visible information is recorded on the reversible thermosensitive recording layer of the transparent rewritable card according to the first embodiment of the present invention. FIG. Plan view showing a state in which visible information is rewritten,
FIG. 6 is a plan view showing a state in which visible information is recorded on the reversible thermosensitive recording layer of the transparent rewritable card according to the second embodiment of the present invention. FIG. 7 is a plan view showing the reversible thermosensitive recording layer of FIG. It is a top view showing the state where recorded visual information was rewritten.

As shown in FIGS. 1 to 3, a transparent rewritable card 1A according to a first embodiment of the present invention has two transparent core sheets 2a and 2b made of vinyl chloride laminated on each other. A predetermined area between at least one side of the transparent core sheet 2a and the transparent oversheet 3a on at least one side of the card base 4 formed by superposing the transparent oversheets 3a, 3b made of vinyl chloride on both sides of the core sheets 2a, 2b. Is provided with a reversible thermosensitive recording layer 5. In addition, the card base material 4 only needs to be configured so that each base material constituting the card base material is formed of a transparent body that can be seen through and the entire card base material has transparency. For example, the card base material may be constituted by only one transparent base material, or the card base material may be constituted by laminating a plurality of transparent base materials. Often.

The reversible thermosensitive recording layer 5 may be provided inside a plurality of base materials constituting the card base material, or may be provided on the surface of the card base material. Further, the card base material is constituted by laminating and bonding a plurality of sheet-shaped base materials having transparency, and by providing a reversible thermosensitive recording layer in a desired region between the respective base materials, rubbing from the outside. This is more preferable because the reversible thermosensitive recording layer is protected from shock and impact, and a transparent card having various specifications according to the use of the card can be provided. When the reversible thermosensitive recording layer 5 is formed on the surface of the card substrate, it is desirable to provide a protective layer on the upper surface of the reversible thermosensitive recording layer 5. This reversible thermosensitive recording layer 5 can be used in accordance with the purpose and purpose of use of the card.
It may be provided in the entire area of the card base material or in a desired area. Further, storage means such as the magnetic recording layer 6 and an IC chip may be provided on the card base as necessary.

The reversible thermosensitive recording layer 5 used in the transparent rewritable card of the present invention comprises a leuco compound, a color-reducing agent and a binder as main components. First, as the leuco compound, for example, xanthene having a partial skeleton such as lactone, sultone, spiropyran, spiropyran, lactone, fluoran, sultone or the like is used. Specifically, crystal violet, lactone,
3-indolino-3-p-dimethylaminophenyl-6
-Dimethylaminophthalide, 3-dimethylamino-7-
Chlorofluorane, 2- (2-fluorophenylamino) -6-dimethylaminofluoran, 2- (2-fluorophenylamino) -6-di-n-butylaminofluoran, 3-dimethylamino-7-cyclohexyl Aminofluorane, 3-dimethylamino-5-methyl-7-
t-butylfluoran, 3-dimethylamino-6-methyl-7-anilinofluoran, 3-cyclohexylamino-6-chlorofluoran, 2-anilino-3-methyl-7-anilinofluoran, 3- Pyrrolidino-7-cyclohexylaminofluoran, 3-N-methylcyclohexylamino-6-methyl-7-anilinofluoran,
Examples include, but are not limited to, 3-N-methylpentylamino-6-methyl-7-anilinofluoran. Two or more of these may be used simultaneously.

Next, examples of the color-developing agent include compounds having both an acidic group comprising a phenolic hydroxyl group or a carboxyl group and a basic group comprising an amino group. To develop and reduce the color of the leuco compound. The basic group may be present as a functional group, or may be present as a part of a chloride compound. Examples of the present color developing agent having an amino group as a functional group include, for example, aminobenzoic acids, hydroxyaminobenzoic acids, hydroxysalicylic acids, gallic acids, acids such as bisphenol acetic acid and aliphatic amines, phenylalkylamines, Salts and complex salts with bases such as tolylalkylamines may be mentioned. In addition, two or more of these color reducing agents may be used simultaneously. The ratio of the leuco compound to the developer is not particularly limited, but may be, for example, 1 to 20 parts by weight, preferably 2 to 10 parts by weight, of the developer.

The reversible thermosensitive recording layer 5 may be of any mode as long as it contains the above-mentioned leuco compound, color-developing agent and binder resin, but is usually dissolved or dispersed in water or an organic solvent. It is formed by coating and drying on the above-mentioned support. At this time, the binder resin is not particularly limited, for example, acrylic resin, polyester, polyurethane, polyurea, melamine resin, polycarbonate, polyamide, polyvinylpyrrolidone,
Polymers such as polyvinyl alcohol, polyvinyl chloride and polyvinyl butyral, and waxes such as paraffin wax, polyethylene wax, carnauba wax, microcrystalline wax, stearamide, celluloses such as hydroxyethyl cellulose,
Gelatin casein, starch, gums and the like.

Of these resins, it is particularly preferable to use a thermosetting resin or a heat-resistant resin in order to improve the repetitive characteristics and heat resistance of the reversible thermosensitive recording material. Naturally, two or more of these resins may be used in combination. Since the reversible thermosensitive recording layer 5 is composed mainly of the above-mentioned leuco compound, color-developing agent and binder, it has transparency and prevents the transparency of the card itself even when provided on a card base material. It is possible to maintain without.

Next, the principle of recording and erasing of the reversible thermosensitive recording layer 5 will be described. When a heat treatment such as a high temperature (300 ° C. or more) and a short time (several milliseconds to hundreds of milliseconds) is applied to the reversible thermosensitive recording layer 5 by a thermal head or a laser, a phenolic hydroxyl group Alternatively, hydrogen ions are released from the carboxy group. The hydrogen ions react with the leuco compound, and when the leuco compound is opened, a colored image is formed. In addition, another thermal energy such as a low temperature (for example, a temperature near or above the melting point of the color-reducing agent,
When the heat treatment is carried out for a long time (100 to 200 degrees) (1 second or longer), the hydrogen ions are deprived by the action of the amino group of the color-developing agent, and the leuco compound is closed to form a colorless and is erased. You. Further, when the erased recording layer is subjected to a heat treatment of thermal energy again, an image is formed again. The formation and deletion of this image can be performed repeatedly, and
The image forming state or the image erasing state is maintained unless thermal energy is applied.

In this example, a color erasing aid may be mixed with the reversible thermosensitive recording layer 5 described above. The decolorizing aid is relatively less basic than the color reducing agent that acts at the time of decoloring, and acts on the leuco compound at the time of decoloring to reduce the color. When the reversible thermosensitive recording layer 5 in the image forming state is subjected to a heat treatment of heat energy, the decolorizing aid acts in addition to the action of the amino group of the color-reducing agent to deprive the leuco compound of hydrogen ions. This is returned to the developer. Thereby, the decoloring property can be remarkably improved.

The transparent rewritable card 1A of the first embodiment
Has a reversible thermosensitive recording layer 5 provided in a stripe shape in the longitudinal direction of the card. FIGS. 4 and 5 show that three rows of visible information 7 can be rewritten on the reversible thermosensitive recording layer 5. The displayed example is shown. FIGS. 4 and 5 show examples of use of the transparent rewritable card 1A. These figures show a case where the transparent rewritable card 1A of the present invention is used as a customer member card in the cosmetics industry. For example, as shown in FIG. 4, information such as a member number, a member name, a service point, a reservation date, and sales promotion information is displayed on the reversible thermosensitive recording layer 5 so as to be visible when visiting the store.
Then, when the customer comes to the store next time and purchases a product or receives a service, the customer submits the transparent rewrite card 1A, which is a customer member card, to the store side.
Information that has been changed, such as a reservation date or sales promotion information, or information that is desired to be sold or contacted to the customer is repeatedly and repeatedly used by rewriting and displaying the information of the reversible thermosensitive recording layer 5 with a card reader / writer as necessary. be able to. As the visual information to be displayed on the reversible thermosensitive recording layer 5, for example, various visual information 7 such as characters, pictures, and designs can be displayed as needed.

The visible information displayed on the reversible thermosensitive recording layer 5 can be visually read from both the front and back sides of the card since the card base 4 has transparency. This is convenient because the rewritten information can be efficiently confirmed. Further, the card base material 4
Has transparency, so that only the visible information displayed on the reversible thermosensitive recording layer 5 provides a novel visual effect that emerges from the transparent body, and the information rewritten by the card user. Each time you look at the site, you can expect a good image such as a feeling of cleanliness, enhance the image of products and services, and improve the impression of the card issuer.

Next, a transparent rewritable card 1B according to a second embodiment of the present invention uses a card base similar to that of the first embodiment, and as shown in FIGS.
Is provided in a rectangular area near the center of the card base material. Then, the reversible thermosensitive recording layer 8 can be repeatedly and repeatedly used by rewriting and displaying the information 9 that can be viewed by a card reader / writer. Also, a reversible thermosensitive recording layer is provided in a plurality of different areas of the card base material,
Fixed information such as member names and variable information such as communication items,
By displaying it visually on different reversible thermosensitive recording layers,
The fixed information may not be erased as much as possible.

[0020]

As described above, according to the transparent rewritable card according to the present invention, since the card base material has transparency, it is possible to give the card user a sense of cleanliness as compared with the conventional card. , Especially cosmetics, medical care, beauty, barber,
It is suitable for use as a membership card or the like to be provided and used by customers in an industry where the corporate image and brand image of jewelry and the like are emphasized. Furthermore,
The transparency of the card base material enhances the freedom of expression of the card issuer, and the rewritable visual information applied to the card can be viewed from both front and back sides of the card. It has the effect of increasing convenience. In addition, since the card base is formed by laminating and bonding a plurality of sheet-like bases having transparency, a reversible thermosensitive recording layer is provided in a desired region between the bases to suit the application. Transparent cards can be provided.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of a transparent rewritable card of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a plan view showing a state in which visible information is recorded on a reversible thermosensitive recording layer of the transparent rewritable card according to the first embodiment of the present invention.

FIG. 5 is a plan view showing a state in which visible information recorded on the reversible thermosensitive recording layer of FIG. 4 has been rewritten.

FIG. 6 is a plan view showing a state in which visible information has been recorded on a reversible thermosensitive recording layer of a transparent rewritable card according to a second embodiment of the present invention.

FIG. 7 is a plan view showing a state in which visible information recorded on the reversible thermosensitive recording layer of FIG. 6 has been rewritten.

[Explanation of symbols]

 1A, 1B Transparent rewritable card 2a, 2b Transparent core sheet 3a, 3b Transparent oversheet 4 Card base material 5, 8 Reversible thermosensitive recording layer 6 Magnetic recording layer 7, 9 Visual information

Claims (2)

[Claims] 1. A rewritable card comprising a card base having a reversible thermosensitive recording layer capable of displaying visual information in a rewritable manner, wherein the reversible thermosensitive recording layer is formed of a rewritable leuco dye layer; A transparent rewritable card, wherein the card substrate is formed of a substrate having transparency. 2. The transparent rewritable card according to claim 1, wherein the card base is formed by laminating and bonding a plurality of sheet-shaped bases having transparency.