JP2010105340A - Ultraviolet drawing card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card medium in which a signature indicated on a card conserves a condition when it is written down and which inhibits postscript and rewriting of the signature. <P>SOLUTION: The card having a writing part (103) on a predetermined domain on a card base (101) includes: the writing part (103) in which an ultraviolet discoloration layer for writing predetermined information using an ultraviolet drawing pen (300) which irradiates an ultraviolet ray on a spot is formed; and a cover film (109) which has visible transparency and ultraviolet ray barrier property. An ultraviolet drawing card (100) is characterized in that the writing part (103) is covered by the cover film (109) after writing the predetermined information by the ultraviolet drawing pen (300) on the writing part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a card for drawing handwritten characters by ultraviolet irradiation.

The present invention is particularly useful for ensuring and maintaining the safety (security) of a signature written on a card.

In the modern card society, in order to prevent unauthorized use of a card, it is important to surely confirm to the card user that the card holder is himself.
Therefore, the identity verification method and its problems will be described below.
<< 1. Identification by signature >>
As a signature verification method, there is a method of verifying the identity by using a signature described on a card.
In the signature verification method, an owner's signature is entered in advance in the signature field of the card, and when the card is used, the user signs it and verifies both signatures to verify the identity.
The signature panel on the top surface of the card is equipped with a sign panel on the top surface that allows ink to be easily fixed. Since the signature of the card is directly signed on the outermost sign panel, it is scratched or soiled by an external shock, and the signature becomes unclear and difficult to verify.
Further, since the signature of the card is directly written on the outermost surface of the card, it is possible for another person to add after the signature or to delete the signature and add it. It is also possible to rewrite the signature illegally.

<< 2. Identification by face image >>
In the face image collation method, the face image of the cardholder is attached to the card, and when the card is used, the face of the person and the face image of the card are collated to confirm the identity.
For example, Patent Document 1 discloses a technique for forming a face image of the owner himself / herself by changing the color of a pigment by irradiating a laser beam in a card with an image.

JP 2002-86967 A (paragraph 0012-paragraph 0019, FIG. 3)

However, in the technique of Patent Document 1,
Since the face image is exposed as personal information, for example, when another person picks up a lost card, it may be tampered with and used illegally.

The present invention has been made in order to solve the above-described problems. The object of the present invention is to maintain the state of writing on a signature written on a card, and to add a signature or It is to provide a card medium that prevents rewriting.

This invention solves the said subject by the means as described in each following aspect.
That is, the first invention of the present invention is:
In a card provided with a writing part (103) in a predetermined area on the card substrate (101),
The card
A writing part (103) in which an ultraviolet discoloring layer for writing predetermined information is formed using an ultraviolet drawing pen (300) that irradiates ultraviolet rays onto a spot;
A cover film (109) having visible transparency and ultraviolet blocking properties;
With
An ultraviolet ray drawing card (100), wherein predetermined information is written on the writing portion with an ultraviolet ray drawing pen (300), and then the writing portion (103) is covered with the cover film (109).
It is.

In this way, the predetermined information (= signature, sign) written on the ultraviolet discoloring layer by ultraviolet irradiation is covered with a cover film having an ultraviolet blocking property after writing, so that ultraviolet irradiation is prevented. It is possible to maintain the state when

According to a second aspect of the present invention, the ultraviolet discoloration layer is
The ultraviolet ray drawing card according to claim 1, comprising at least an ink vehicle and a leuco dye.

The third invention of the present invention is:
The cover film (109)
An ultraviolet blocking film (109b) having visible transparency and a heat seal layer (109a) having visible transparency are laminated on one surface of the film,
A heat seal layer (109a) is provided on the side facing the card substrate surface (101),
3. The ultraviolet ray drawing card according to claim 1, wherein one side of the film (109) is bonded to the vicinity of the end portion of the card base surface (101).

Alternatively, the written predetermined information is covered with a cover film that cannot be peeled off by adhesion with heat, and therefore cannot be added or rewritten.
It is also protected from external scratches and dirt.

According to the present invention, for the signature in the card signature column,
(1) By covering with an ultraviolet blocking film, it is possible to maintain a signature state under a normal use environment.
(2) By covering with a cover film that cannot be peeled off, it is possible to prevent tampering such as unauthorized additional writing or rewriting by others.
(3) By covering with a cover film, it is possible to protect from external scratches and dirt.
Therefore, according to the present invention, there is an effect that the state when the signature is written can be maintained for a long time.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a view for explaining the appearance of an ultraviolet ray drawing card 100 according to the present invention.
The ultraviolet drawing card 100 is a card in which predetermined information is written on the writing unit 103 with an ultraviolet drawing pen, and then the writing unit is covered with the cover film 109.
The ultraviolet ray drawing card 100 includes a card substrate 101 and a cover film 109.
The vicinity of the end of the card substrate 101 is bonded to one side of the cover film 109.

The card substrate 101 has a writing unit 103.
The writing unit 103 is a writing region formed by an ultraviolet discoloring layer.
The ultraviolet discoloration layer is a photosensitive material that changes color (= color development) by ultraviolet rays.

The cover film 109 has visible transparency and allows the predetermined information written on the writing unit 103 to be visually observed.

FIG. 2 is a configuration diagram of the ultraviolet ray drawing card 100.
The ultraviolet ray drawing card 100 is configured by adhering a card substrate 101 having a writing unit 103 and a cover film 109 with an adhesive layer 102.
A partial enlarged view 100a in the vicinity of the adhesive portion of the ultraviolet ray drawing card shows the layer structure of the ultraviolet ray drawing card.
Adhering the cover film 109 and the card base 101 in this way is useful for providing the cover film 109 at a predetermined position on the card base 101.

The writing unit 103 is formed of an ultraviolet discoloration layer that is an ultraviolet photosensitive material.
As the photosensitive material for the ultraviolet discoloration layer, for example, an ultraviolet ray detection ink disclosed in Japanese Patent No. 3787381 (paragraphs 0008 to 0013) may be used. This ultraviolet light amount detection ink is a photosensitive material composed of an infrared absorber, a leuco dye, an ink vehicle, and the like.

The leuco dye is usually a colorless or light-colored organic dye (color former). It has the property of developing color by the action of active species such as Bronsted acid and Lewis acid, and is oxidized to become a dark dye, but the reaction is irreversible.
Accordingly, the colored leuco dye cannot be returned to a colorless state.
The leuco dye is at least one selected from triphenylmethane phthalides, fluorans, phenothiazines, indolyl phthalides, leucooramines, rhodamine lactams, rhodamine lactones, indolines, and triarylmethanes. Are preferred. These compounds are selected according to the color tone and color development performance.

The cover film 109 is formed by laminating a heat seal layer 109a having visible transparency on one surface of an ultraviolet blocking film 109b having visible transparency.

The heat seal layer 109 a is provided on the side facing the card substrate surface 101.
The heat seal layer 109a heat-bonds the card substrate 101 and the cover film 109 so that they cannot be peeled by overlapping and heating.

The ultraviolet blocking film 109b is an ultraviolet cut film or the like used for automobiles or home windows. For example, a UV-absorbing transparent adhesive sheet disclosed in JP-A-7-3217 (paragraphs 0009-0011, FIG. 1) may be used. This UV-absorbing transparent pressure-sensitive adhesive sheet is obtained by mixing a UV-absorbing agent of a benzotriazole compound with an adhesive component and applying it to a PET film. Note that the ultraviolet light absorbing transparent adhesive sheet transmits a visible light component.

FIG. 3 is an external view of the ultraviolet ray drawing pen 300.
The ultraviolet ray drawing pen 300 irradiates the writing unit 103 of the ultraviolet ray drawing card 100 with ultraviolet rays, and writes predetermined information (= signature, signature).
The ultraviolet ray drawing pen 300 has an external line irradiation opening 301.
The ultraviolet ray drawing pen 300 includes an ultraviolet light source and irradiates ultraviolet rays from the external line irradiation opening 301.

The ultraviolet drawing pen 300 may include an ON / OFF switch for an ultraviolet light source. (Not shown)
Alternatively, the ultraviolet ray drawing pen 300 may be provided with a pressure sensor in the external line irradiation opening 301 so as to feel the writing pressure when writing predetermined information with the pressure sensor and turn on / off the ultraviolet light source.

(Modification)
As described above, the ultraviolet drawing card 100 has been described, but a modified example will be described below.
(1) The writing unit 103 may be the entire card base 101.
(2) The cover film 109 may be of a size that covers the writing unit 103.
(3) The cover film 109 does not cover the entire card base 101, but is provided with a temporary fixing adhesive layer at least on one side that is bonded to the vicinity of the end of the card base surface 101 to provide a card. It may be temporarily fixed to the substrate surface 101.

External view of ultraviolet ray drawing card 100 according to the present invention Configuration diagram of ultraviolet ray drawing card 100 External view of UV drawing pen 300

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Ultraviolet drawing card 101 Card base material 102 Adhesive layer 103 Writing part 109 Cover film 109a Visible and transparent heat seal layer 109b Visible and transparent ultraviolet blocking film 300 Ultraviolet drawing pen 301 External irradiation opening

Claims (3)

In a card with a writing part in a predetermined area on the card substrate,
The card
A writing part in which an ultraviolet discoloring layer for writing predetermined information is formed using an ultraviolet drawing pen that irradiates ultraviolet rays onto a spot;
A cover film having visible transparency and ultraviolet blocking properties;
With
An ultraviolet ray drawing card, wherein predetermined information is written on the writing portion with an ultraviolet ray drawing pen, and then the writing portion is covered with the cover film. The ultraviolet discoloration layer is
The ultraviolet ray drawing card according to claim 1, comprising at least an ink vehicle and a leuco dye. The cover film is
A UV sealing film having visible transparency and a heat seal layer having visible transparency on one surface of the film are laminated,
A heat seal layer is provided on the side facing the card substrate surface,
3. The ultraviolet ray drawing card according to claim 1, wherein one side of the film is bonded to the vicinity of the end of the card base surface. 4.

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