JP2006082237A - Heat-sensitive duplication business form - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat-sensitive duplication business form which can prevent printed information leakage from occurring and allow the color developing state of characters to be visually checked without impairing the color development properties of characters to be duplicated in a second sheet. <P>SOLUTION: The heat-sensitive duplication business form P comprises an upper sheet 1 with a heat-sensitive color developing layer 12 applied to a paper material 11 and a lower sheet 2 with a heat-sensitive color developing layer 22 applied to a paper material 21, releasably laminated together using a false adhesive layer 3. In this business form, information is concealed by forming concealing layers 13 and 23 with an applied deep color ink on the face of the upper sheet 1 and the back of the lower sheet 2 respectively. In addition, the color developing state of the lower sheet 2 can be visually checked by improving the permeability of the upper sheet 1 through applying a color development inhibitor 14 to one portion of the surface of the heat-sensitive color developing layer 12 of the upper sheet 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a thermal copying form capable of copying two sheets by a thermal coloring action.

  In recent years, thermal paper has been widely used mainly in the meter-reading work for utilities such as electricity, gas or water. The reason for this is that it is possible to create a meter reading slip on the spot by printing the date and time of meter reading, amount used, billing amount, etc. using a handheld thermal printer with excellent portability. This is because no maintenance is required, and the maintenance is easy and the generation of sound is small. In addition, the thermal paper used is relatively inexpensive compared to other printing papers.

  One sheet of thermal paper is commonly used for this type of meter reading work, and the meter reading slip output by the staff after completing the meter reading work is either sent by mail or posted directly to the post. Each household is notified. However, if a single sheet of thermal paper is used for the meter reading slip, the output result of the meter reading slip can be directly recognized. For this reason, it is conceivable that a staff member who handles the meter reading slip can know the living state of each household, and it is considered undesirable to attract more people's interest than necessary. Moreover, in recent years, it is a society where crimes frequently occur, and it is fully conceivable that such information leakage of each household causes a crime.

  On the other hand, a heat-sensitive recording material disclosed in Patent Document 1 is known as an invention that takes measures against information leakage as described above. In this thermal recording medium, an opaque layer coated with ink is provided between two thermal papers, so that even if the first thermal paper is peeled off, the second copy is concealed by the opaque layer. It has become. However, according to such a configuration, the heat transfer to the second thermal paper is hindered by the opaque layer interposed between the thermal papers during printing by the thermal printer, and the sharpness of the characters that produce the thermal color decreases. In addition, there is a drawback that the color development state of the characters printed on the second thermal paper cannot be visually confirmed unless the first thermal paper is peeled off.

JP-A-6-320858

  The present invention has been made in view of such circumstances, and an object of the present invention is to output information printed on a two-copy copy form using thermal paper that can be printed by a thermal printer. It is an object of the present invention to provide a thermal copy form that can prevent leakage and can visually check the color development state of a character copied on the second sheet without impairing the color development of the character.

  In order to solve the above-described problem, the thermal copying form according to the present invention can peel the upper paper coated with the thermal coloring layer on the paper material and the lower paper coated with the thermal coloring layer on the paper material. A heat-sensitive copy form formed by bonding, wherein a concealing layer in which dark color ink is applied is provided on one side or a plurality of sides of the front or back surface of the upper paper or the back surface of the lower paper. In addition, a color development inhibitor is coated on a part of the heat-sensitive color development layer of the upper paper.

  The thermosensitive coloring layer is a solid at room temperature, but an electron-donating colorant and an electron-accepting developer that are melted by heating chemically react with each other to develop a color. For example, a colorless leuco such as crystal violet lactone is used. The dye and a phenolic compound such as bisphenol A are dispersed in a resin binder, and this is formed by coating on a paper material.

  The concealing layer is not particularly limited, and can be formed, for example, by performing solid printing or tint block printing using a dark printing ink such as black, silver, or dark blue. Further, in order to reliably prevent the printing on the lower paper from being transmitted, it is desirable to print on a plurality of surfaces or all of the front and back surfaces of the upper paper or the back surface of the lower paper.

  In addition, by applying a color development inhibitor to a part of the thermal coloring layer of the upper paper, the color development state of the thermal coloring layer of the lower paper can be visually confirmed. Here, the color development inhibitor means a substance that binds to the color developer contained in the heat-sensitive color development layer to cause a neutralization reaction and prevents a chemical reaction with the color development agent. For example, dodecylamine, alkyl Examples include various amines such as trimethylammonium chloride, and various alcohols such as glycerin and polyethylene glycol.

  Furthermore, in addition to the above-described configuration, it is desirable to apply permeable ink to all or part of the color development inhibitor. The reason for this is to improve the transparency by filling the gaps in the paper material constituting the upper paper. Examples of such inks include two-part curable silicone (made by Shin-Etsu Silicone) and penetrating watermarks. Ink (Teikoku Manufacturing Co., Ltd. Unimark) and the like.

  In addition, in order to solve the above-described problem, the thermal copying form according to the present invention peels an upper paper made of a transparent paper material or a transparent resin film and a lower paper coated with a thermal coloring layer on the paper material. A heat-sensitive copying form that can be bonded together, and is a concealing layer in which dark color ink is applied to any one or a plurality of surfaces of the top surface or back surface of the upper paper or the back surface of the lower paper. Is provided. According to this configuration, a material having excellent thermal conductivity and high transparency such as glassine paper can be selected for the upper paper, so that the coloring property of the lower paper is further improved.

  If the transparency of the upper paper material is insufficient, it is also conceivable to apply permeable ink to all or part of the surface of the upper paper.

  According to the present invention, in a thermal copy form for copying two sheets, the information printed on the second lower sheet becomes difficult to see from the front surface of the first upper sheet or the back surface of the second lower sheet, and security of personal information or the like is required. Information can be prevented from leaking to the outside, and the personal information of the recipient can be protected. In addition, by giving transparency to a part of the upper paper, it is possible to visually check the color development state of the lower paper without peeling off the upper paper. For example, the color of the thermal printer is poor. The problem of handing a bad form to the recipient is also eliminated. In addition, if it is not necessary to give the first sheet of paper a backup function and it is acceptable to use paper that does not have heat-sensitive recording properties, the upper sheet has excellent thermal conductivity and transparency. Since a high material can be selected, there is also an effect that the coloring property of the second lower sheet can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 3 show a thermal copying form according to the first embodiment. FIG. 1 is a plan view showing the structure of the form, FIG. 2 is a sectional view of the form, and FIG. 3 shows a state after the form is printed. It is explanatory drawing shown.

  As shown in FIG. 1, the thermal copy form P of this embodiment is a two-sheet copy form in which an upper paper 1 and a lower paper 2 are detachably bonded. Although there is no particular limitation on the bonding form, for example, a pseudo adhesive layer 3 coated with a pseudo adhesive made of natural rubber or synthetic rubber pressure sensitive adhesive is provided between both sheets 1 and 2. Thus, the pasting surface pasted via the pseudo-adhesive layer 3 is in a state of being peelably adhered. In addition, as the pseudo-adhesion layer 3, an open type film obtained by thermocompression bonding of transparent films can also be used.

  As shown in FIG. 2, the upper paper 1 is composed of thermal paper, and a thermal coloring layer 12 in which a thermal coloring agent is applied on the surface side of the paper material 11 is provided. For the thermosensitive coloring layer 12, a dye type based on a coloring reaction of a dye is used. For example, a colorless leuco dye (electron donating color former) such as crystal violet lactone and a phenol compound (electron accepting agent) such as bisphenol A. Developer) is dispersed in a resin binder and applied onto the paper material 11. The thermosensitive coloring layer 12 is solid at room temperature, but the electron donating color former and the electron accepting developer, which are melted by heating, chemically react with each other to develop color.

  On the other hand, the lower paper 2 is also composed of thermal paper, and a thermal coloring layer 22 is provided on the surface side of the paper material 21 by applying a thermal coloring agent similar to the upper paper 1. Note that commercially available two-sheet copying paper in which thermal papers are peeled together is “TW80KK” manufactured by Nippon Paper Industries Co., Ltd., “2P Thermal” manufactured by Inner and Outer Carbon Ink Co., Ltd., etc. There is.

  In the thermal copy form P of the present embodiment, when the upper paper 1 and the lower paper 2 are bonded together and heated from the surface side of the upper paper 1 with a thermal head or the like, the above-described dye coloring reaction occurs due to the heat, Both the thermosensitive coloring layer 12 of the upper paper 1 and the thermosensitive coloring layer 22 of the lower paper 2 are colored. However, a part of the thermal copy form P is configured such that the color development state of the lower paper 2 is not visible when viewed from the front surface side of the upper paper 1 and the back surface side of the lower paper 2.

  That is, as shown in FIG. 2, the concealing layers 13 and 23 are provided as anti-permeation processing at the same position on the thermosensitive coloring layer 12 on the front side of the upper paper 1 and on the paper material 21 on the back side of the lower paper 2. Is provided. The concealing layers 13 and 23 are formed, for example, by performing solid printing or pattern printing such as a tint block pattern using a dark printing ink such as black, silver, or dark blue. In this embodiment, the concealing layers 13 and 23 are printed on both the front surface of the upper paper 1 and the back surface of the lower paper 2, but at least one of the front surface or the back surface of the upper paper 1 or the back surface of the lower paper 2. It is only necessary to print on one surface, and in order to ensure the transmission preventing effect, it is desirable to print on these multiple surfaces or all surfaces.

  In addition, in the case of such a heat-sensitive copy form in a bonded form, if the upper paper 1 is not peeled off, it is possible to confirm the printing status such as whether the lower paper 2 is correctly printed or whether the color density is sufficiently obtained. Can not. Therefore, in the present embodiment, a configuration for confirming the printing state of the lower paper 2 as seen from the front side without peeling off the upper paper 1 is adopted in a place where it is not necessary to conceal.

  That is, in the upper paper 1, a visual recognition window is provided in the vicinity of the masking layer 13. This visual window is formed by applying a color development inhibitor 14 that inhibits the color development reaction of the dye on the thermosensitive color developing layer 12, and suppresses the color development of the thermosensitive color developing layer 12 of the upper paper 1. The visibility of the thermosensitive coloring layer 22 is improved by preventing the overlapping with the printing. The coloring inhibitor 14 is a substance that binds to the electron-accepting developer contained in the thermosensitive coloring layer 12 to cause a neutralization reaction and suppresses a chemical reaction with the electron-donating color former. For example, dodecylamine In addition, various amines such as alkyltrimethylammonium chloride and various alcohols such as glycerin and polyethylene glycol can be used.

  By the way, when the thermal paper used for the upper paper 1 is a paper with high opacity, even if the color development of the thermal coloring layer 12 can be suppressed by the color development inhibitor 14, the color development state of the lower paper 2 can be surely recognized. Not necessarily. Therefore, in this embodiment, the permeable ink 15 is applied to the application portion of the color development inhibitor 14 forming the visual recognition window. The penetrating ink 15 is an ink that, as shown in FIG. 2, penetrates into the paper material 11 to improve the transparency by filling the gaps in the paper. (Made by Shin-Etsu Silicone), penetrating watermark ink (Unimark made by Teikoku Ink Manufacturing Co., Ltd.), etc.

  Next, an example of using the thermal copy form according to the present embodiment will be described with reference to FIG.

  In the example shown in FIG. 3, this thermal copy form P is applied as a utility bill meter reading form. The upper paper 1 is a notice, and the lower paper 2 is a receipt, and predetermined items m and n are preliminarily printed with ultraviolet curable ink. This meter reading slip is for printing the date and time of meter reading, usage amount, billing amount, etc. with a thermal printer for handy terminals when the staff visits each household, and this is shown in this figure. It shows the state after printing.

  As shown in Fig. A, even if the billing amount is printed on the notice sheet with the notice sheet and the receipt pasted together, the billed amount cannot be visually recognized unless the first notice sheet is peeled off. Therefore, it becomes possible to protect the personal information of the recipient.

  The state at this time will be described in detail. As shown in FIGS. B and c, the thermal coloring layer 12 of the upper paper 1 as a notification and the thermal coloring layer 22 of the lower paper 2 as a receipt are both for handy terminals. Color is developed when heated by the thermal head of the thermal printer. However, the characters of the thermosensitive coloring layer 12a developed on the upper paper 1 and the characters of the thermosensitive coloring layer 22a developed on the lower paper 2 are prevented from being transmitted by the masking layer 13 on the front side and the masking layer 23 on the back side, respectively. Regardless of whether you look through from the front or back of this meter reading slip, you can no longer see the bill. The recipient who has received the meter-reading slip can confirm the amount of money printed on the second receipt by removing the first notice as shown in FIG.

  On the other hand, as shown in Fig. A, when the date and time of the meter reading is printed on the notice sheet with the notice sheet and the receipt attached, the second sheet can be printed without removing the first sheet. It is possible to confirm the color development state of the meter reading date and time printed on the receipt.

  That is, as shown in FIG. 3C, a coloring inhibitor 14 is applied on the thermosensitive coloring layer 12 of the upper paper 1 that is a notice, and this coloring inhibitor 14 causes a chemical reaction of the thermosensitive coloring layer 12. Since color is not generated, the date and time of meter reading is not printed on the notification. On the other hand, color development occurs in the thermosensitive coloring layer 22 of the lower paper 2, and the meter reading date and time is printed on the receipt. Here, since the penetrating ink 15 is applied to the notice and its transparency is secured, the staff member displays the meter reading date and time printed on the receipt on the notice as shown in FIG. Thus, it is possible to confirm the printing status of the second receipt without removing the first notice.

  As described above, when the thermosensitive copy form P of the present embodiment is applied to a utility bill meter, the staff can confirm the printing status of the receipt on the notice sheet, and the security of the personal information such as the billing amount. The effect that it can secure is acquired.

  Next, another embodiment of the present invention will be described. 4 to 6 show a thermal copy form according to the second embodiment, FIG. 4 is a plan view showing the structure of the form, FIG. 5 is a sectional view of the form, and FIG. 6 shows a state after the form is printed. It is explanatory drawing shown.

  As shown in FIG. 4, the thermal copy form P of the present embodiment is different from that of the first embodiment in the configuration of the upper paper 4. Since other configurations are the same as those of the first embodiment, the same portions are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 5, in the present embodiment, the first upper paper 4 is made of a highly transparent paper material, which makes it easier to visually recognize the color development state of the second lower paper 2. As such a paper material, for example, glassine paper can be used, and the glassine paper has a paper thickness of 50 μm or less, and is much thinner and better in thermal conductivity than a paper material such as normal fine paper, and It is characterized by high transparency.

  Further, as the material for the upper paper 4, a transparent resin film can be used instead of glassine paper. In this case, considering that the upper paper 4 is heated by a thermal head or the like, a low melting point resin film is avoided. Here, a low melting point means a thing of 120 degrees C or less, As a desirable melting | fusing point, a thing about 180-300 degreeC is used suitably.

  In this embodiment, a transparent paper material or a transparent resin film is used as the material of the upper paper 4, and the concealability is inferior to that of the upper paper 1 of the first embodiment, so printing with higher concealment is required. It becomes. Therefore, as shown in FIG. 5, the concealing layers 43, 43, and 23 are provided at the same position on the front and back surfaces of the paper material 41 in the upper paper 4 and the rear surface of the paper material 21 in the lower paper 2 as permeation prevention processing. Is provided. In addition, the solid printing ink and the pattern printing such as the tint block pattern are similarly performed using the dark printing ink. However, it is possible to improve the concealment property by increasing the thickness of the ink coating film.

  If the transparency of the material of the upper paper 4 is insufficient, the permeable ink 45 used in the first embodiment described above may be applied to a part of the paper material 41 as shown in FIG. good.

  Next, an example of using the thermal copy form according to this embodiment will be described with reference to FIG.

  As shown in FIG. 6, this heat-sensitive copy form P is also applied as a utility meter reading form. Since the upper paper 4 is a concealment paper for the lower paper 2, the lower paper 2 is a notice and receipt, and the predetermined item n previously printed with the ultraviolet curable ink on the lower paper 2 does not need to be concealed. It can be seen through from the front side of the upper paper 4.

  In the present embodiment, as shown in FIG. 3C, the thermal coloring layer 22 of the lower paper 2 which is a notice and receipt is heated by the thermal head, and the color of the colored thermal coloring layer 22a is the upper paper. Transmission is prevented by the concealing layers 43 and 43 of 4 and the concealing layer 23 of the lower paper 2, and the billing amount cannot be seen in spite of seeing through either the front or back of the meter reading slip. As shown in FIG. 5B, the billing amount printed on the second notice / receipt can be confirmed by removing the first concealment sheet.

  Further, since transparency is secured by the penetrating ink 45 applied to the upper paper 4, the date and time of the meter reading printed on the thermosensitive coloring layer 22 of the lower paper 2 which is a notice and receipt is visually recognized from the concealment paper. The printing status can be confirmed. According to the present embodiment, since the upper paper 4 serving as the first concealment paper has high thermal conductivity, the color density of the lower paper 2 serving as the second notice / receipt can be secured satisfactorily. There is an advantage.

  As described above, in the thermal copy form P of the present embodiment, the clerk can confirm the printing status of the notice / receipt from the concealment sheet and can secure the security of the personal information such as the billing amount. can get.

It is a top view which shows the structure of the thermosensitive copy form of 1st embodiment. It is the II-II sectional view taken on the line shown in FIG. It is a figure explaining the usage example of the thermosensitive copy form of 1st embodiment, The figure a is a top view which shows the state of the upper paper after printing, The figure b is a top view which shows the state of the lower paper after printing, FIG. 3C is a cross-sectional view taken along line III-III shown in a. It is a top view which shows the structure of the thermosensitive copy form of 2nd embodiment. It is the VV sectional view taken on the line shown in FIG. It is a figure explaining the usage example of the thermal copy form of 2nd embodiment, The figure a is a top view which shows the state of the upper paper after printing, The figure b is a top view which shows the state of the lower paper after printing, FIG. 6C is a sectional view taken along line VI-VI shown in a.

Explanation of symbols

P Thermal copy form 1 Upper paper 11 Paper material 12 Thermal coloring layer 13 Hiding layer 14 Color development inhibitor 15 Penetrating ink 2 Lower paper 21 Paper material 22 Thermal coloring layer 23 Hiding layer 3 Pseudo-adhesive layer 4 Upper paper 41 Transparent paper material 43 Concealing layer 45 Penetration ink

Claims (4)

A thermal copy form comprising an upper paper coated with a thermal coloring layer on a paper material and a lower paper coated with a thermal coloring layer on the paper material in a peelable manner,
A concealing layer in which dark ink is applied to one or a plurality of surfaces of the top sheet or the back surface of the top sheet or the back surface of the bottom sheet is provided on the thermosensitive coloring layer of the top sheet. A heat-sensitive copying form characterized in that a color development inhibitor is applied to a part of the paper.   2. The thermal copying form according to claim 1, wherein penetrating ink is applied to all or part of the color development inhibitor. A thermal copy form comprising an upper paper made of a transparent paper material or a transparent resin film and a lower paper coated with a thermosensitive coloring layer on the paper material in a peelable manner,
A heat-sensitive copying form, characterized in that a concealing layer in which dark ink is applied is provided on any one surface or a plurality of surfaces of the front or back surface of the upper paper or the back surface of the lower paper. .   4. The thermal copy form according to claim 3, wherein a penetrating ink is applied to all or a part of the surface of the upper paper.

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