JPH0715362U - Confidential documents - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention covers a confidential document with a concealing sheet made of a transparent resin sheet with a visible light concealing layer for concealing the confidential information entry column of the confidential document. However, it is invisible to the naked eye, and provides a confidential document in which the written contents can be read from the visible light hiding layer by a special device. [Structure] A visible light shielding layer composed of black ink of a mixed color is applied to a region corresponding to a confidential information entry column of a confidential document on a transparent resin sheet, and an adhesive is applied to a side edge around the back surface of the transparent resin sheet. Then, a confidentiality keeping document is obtained by forming a concealing sheet having cut lines around the inside of the adhesive of the transparent resin sheet and around the visible light shielding layer, and covering the confidential document with the concealing sheet.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 In the present invention, the confidential document is covered with a concealing sheet with a visible light concealing layer that conceals the confidential information entry section of the confidential document on the transparent resin sheet, and the described content cannot be seen visually. It relates to confidential documents that can be read from above the visible light shielding layer by special equipment.

[0002]

[Prior art]

 Conventionally, application forms, personal certificates, medical certificates, etc. that contain privacy information that you do not want to be known to a third party, or confidential documents of companies that describe confidential matters are generally confidential after examination and circulation. It is common that the item is stamped, put in an envelope, etc. and stored in a safe or the like. Specifically, when applying for a cash card or credit card subscription to a bank or credit company, submit confidential documents of privacy information including PIN and bank account number to the receptionist for application or mail. Then, after the receptionist confirms this application form, if it is the headquarters, it will be sent directly to the headquarters receptionist if it is a branch office, and it will be submitted from the person in charge to the recruitment examination person to be examined and the application will be accepted. A judgment will be made. In addition to notifying the applicant of this result, the application form (confidential documents) is generally kept strictly in a metal box or the like, and a confidential document management system is generally used.

[0003]

[Problems to be solved by the device]

 However, even if confidential documents containing privacy information are placed in envelopes and are strictly stored and managed, even if they are often exposed to the receptionist and other third parties and are stored in safes, etc. In addition to the person in charge of auditing, there is a possibility that a third party may see it during reconfirmation or intermediate inspection.

Therefore, the present invention covers a confidential document with a concealing sheet made of a transparent resin sheet provided with a visible ray concealing layer for concealing the confidential information entry column of the confidential document, and the confidential information described is visually observable. We provide confidential documents that cannot be viewed and whose contents can be read from the visible light shielding layer by special equipment.

[0005]

[Means for Solving the Problems]

 In order to solve the problem, the present invention provides a confidentiality document comprising a confidential document having a confidential information column and a concealing sheet having a transparent resin sheet and a concealing layer for concealing the confidential item column. The holding document 20 is provided with a visible light shielding layer 18 made of black ink of a mixed color in the area corresponding to the confidential information entry column 11 of the confidential document 10 on the transparent resin sheet 15, and the side around the back surface of the transparent resin sheet. Adhesive 19 is applied to the edges to form a concealing sheet 14 having cut lines 17 and 17 around the adhesive inner side of the transparent resin sheet and the visible light concealing layer described above. The document 10 is covered.

The present invention will be described in detail. The visible light hiding layer 18 is a layer that transmits infrared rays that can be read by an infrared sensor, and is a visible light ray that is invisible to the naked eye. Say something that cuts off.

Examples of such a visible light shielding layer 18 include a coating containing an infrared ray transmissive dye such as a gelatin film and Orazol Black BV or Orazol 2RG, but also a normal ultraviolet ray curable process ink and the like. Can be used. Therefore, in the present invention, UV curable process ink was used. The inks are FDOL Yellow, FDOL Magenta, and FDOL Cyan manufactured by Toyo Ink Mfg. Co., Ltd., and these process inks are yellow, magenta, and cyan so as to sufficiently block light of all wavelengths in the visible region. It is a mixture of black (gray color ink) or gray ink. Such a visible light shielding layer can be formed by, for example, printing by a screen printing method or an offset printing method and immediately irradiating it with ultraviolet rays to cure it.

In addition, the confidential information (letters and numbers described in the drawings) provided under the visible light shielding layer is described by using a writing instrument using black ink containing carbon black to absorb infrared rays. Therefore, the confidential information in the lower layer can be read by looking at the infrared ray sensor or infrared scope from above the visible light shielding layer.

[0009]

[Action]

 The visible light concealing layer 18 of the concealing sheet 14 relating to the confidentiality document 20 of the present invention is a black ink that is a mixture of UV curable yellow (yellow), magenta (red), and cyan (indigo) process inks. When the confidential matter 11 under the visible light shielding layer 18 is read, a special device (for example, an infrared scope) must be used. The chances of being exposed to a third party are reduced, and confidential information 11a (for example, privacy information) will not be leaked to anyone other than a specific person who manages the device.

[0010]

【Example】

 An embodiment will be described with reference to the drawings. FIG. 1 is a plan view (A) showing an example of a confidential document according to the present invention, and a plan view (B) showing an example of a hiding sheet provided with a visible light hiding layer. In addition, FIG. 2 is a cross-sectional view taken along line XX of the concealing sheet. In the figure, reference numeral 10 indicates a confidential document, reference numeral 11 indicates a confidential matter description column, reference numeral 11a indicates confidential matter, reference numeral 14 is a concealing sheet, reference numeral 18 is a visible light concealing layer, and reference numeral 20. Is a confidential document.

First, FIG. 1A shows a confidential document 10 in which confidential information 11a such as personal privacy information is described in a confidential information entry column 11. In this case, the confidential information 11a is a black ink containing carbon black. Write with an ink writing instrument.

FIG. 1B is a plan view of the concealing sheet 14, which shows the surface of the transparent resin sheet 15 of vinyl chloride or the like having almost the same size as the confidential document 10 and the confidential matters of the confidential document 10. A visible light shielding layer 18 is provided in a region corresponding to the description column 11 with a mixed color black ink (a black, gray ink obtained by mixing process inks of yellow, magenta and cyan). Further, an adhesive 19 having a width of about 3 to 10 mm is applied to the peripheral 4 side edges of the back surface of the transparent resin sheet 15, and the other 3 side edges except for the top side edge 13 have substantially the same width as the adhesive application width. The release paper 16 is attached. Further, cut lines 17, 17 are provided around the transparent resin sheet 15 around the inside of the adhesive and the visible light hiding layer 18 region.

FIG. 2 is a sectional view of the concealing sheet 14 taken along the line XX. As shown in the drawing, the visible light shielding layer 18 is provided on the release paper 16, the adhesive 19, the transparent resin sheet 15 and the surface thereof from the lower layer, and in the region corresponding to the confidential information entry column 11. . The visible light hiding layer 18 may be provided on the back surface of the transparent resin sheet 15 so as to face the confidential matter entry column 11.

FIG. 3 shows a confidentiality document 20 in which the confidential document 10 and the concealing sheet 14 are attached at the top edge. As for the method of using the confidential document 20, the confidential item 11a is written in the confidential item entry column 11 of the confidential document 10 with a writing instrument made of black ink containing carbon black. After the description, the release paper 16 provided on the back surface 3 side edge of the concealment sheet 14 is peeled off and attached to the side edge of the confidential document from above to form the confidentiality document 20 (not shown). Will be known only to the person who listed it, and will not be touched by a third party.

Although a method of applying an adhesive to the periphery of the back surface of the concealing sheet 14 and sticking it to the security document 20 has been described, the invention is not limited to this, and for example, 3 mm to 10 mm from the end face to the inner periphery. A transparent adhesive film provided with cut lines around the width and a position corresponding to the hiding layer region is attached to the back surface of the hiding sheet 14, and after the confidential matter 11a is written, the peripheral part of the transparent adhesive film is cut off. It is also possible to use a transparent adhesive film that is peeled from the line and attached to a confidential document (not shown).

In the present embodiment, the confidential information 11a of the confidential document 20 is read by using an infrared scope (a CCD camera having a sensitivity in the infrared region, a filter for cutting 850 nm or less, For example, when viewed with a HOYA color filter IR-85), infrared light passes through the visible light hiding layer 18 of black ink of mixed colors, but since it is absorbed by carbon black, the confidential information 11a in the lower layer is seen through. Can be done (see Figure 4). Obviously, it is not possible to see through the visible light shielding layer 18 by visual observation. Therefore, it can be read only by the specific person who manages this device, and it cannot be seen without using the device, so it is not visible to a third party.

The cut lines 17, 17 provided around the concealing sheet 14 and around the region of the visible light concealing layer 18 may cause an incident, and keep the confidential documents in police stations and various government offices. In order to directly confirm the confidential matter 11a of the handwriting, the whole of the concealing sheet 14 or only the visible ray concealing layer 18 is cut out and submitted.

If the back side of the confidential document 10 of the confidential document 20 is placed over the light, the confidential matter 11a may be seen through. It is advisable to apply a light transmission blocking layer (not shown) by solid printing with ink (for example, FDOL-black manufactured by Toyo Ink Mfg. Co., Ltd.).

[0019]

[Effect of device]

 It is stated that the confidential document of the present invention will not be easily seen by a third party and the device (infrared scope, etc.) will not be used because the person will attach the concealment sheet immediately after entering the confidential information. Since the contents cannot be read, only the specific person who manages the device can read it. If it becomes necessary to check confidential information with a handwriting, it can be dealt with by cutting off the entire hiding sheet or only the visible light hiding layer.

[Brief description of drawings]

FIG. 1 is a plan view (A) showing an example of a confidential document according to the present invention, and a plan view (B) showing an example of a hiding sheet provided with a visible light hiding layer.

FIG. 2 is a sectional view taken along line XX of the above-mentioned concealing sheet.

FIG. 3 is a perspective view showing an example of a confidential document in which a confidential document and a concealment sheet are attached at the top edge.

FIG. 4 is a graph showing the transmittance of infrared rays in mixed color black ink.

[Explanation of symbols]

 10 ... Confidential documents 11 ... Confidential information entry field 11a ... Confidential information 13 ... Top edge 14 ... Concealment sheet 15 ... Transparent resin sheet 16 ... Release paper 17 ... Cut line 18 ... Visible light concealment layer 19 ... Adhesive 20 ... Confidentiality Documents

Claims (2)

[Scope of utility model registration request] 1. A confidentiality document comprising a confidentiality document having a confidentiality information column and a concealing sheet having a transparent resin sheet with a concealing layer for concealing the confidentiality item column, wherein the confidentiality document is transparent. In the area corresponding to the confidential information entry column of the confidential document on the resin sheet, a visible light hiding layer made of mixed color black ink is applied, and an adhesive is applied to the side edge around the back surface of the transparent resin sheet, and the transparent A confidentiality-retaining document characterized by forming a concealing sheet in which a perforated line is provided around the inside of an adhesive of a resin sheet and around the visible light-shielding layer, and the confidential document is covered with the concealing sheet. 2. The confidentiality document according to claim 1, wherein a light transmission blocking layer made of black ink is previously formed on a back surface of a region corresponding to a confidential matter description column of the confidential document.