JPH01264887A - No carbon paper and its use - Google Patents

Abstract

PURPOSE:To enable a character or the like on a lower paper side to be kept under a secret state for a certain period of time, by a method wherein after recording and pressing with a writing tool or the like under a state wherein a first paper on the rear face side of which colorless dye capsule is coated, and a second paper to an front face side of which colorless dye oozed out from the abovementioned dye capsule adheres are piled, a developer is coated on a pressing part on the upper face side of the second paper. CONSTITUTION:A dye capsule 102 comprised of colorless dye is applied on a rear face side of a first paper 1 used as an upper paper, and a developer is not applied on a surface of a second paper 2 arranged down. When a character or the like are recorded on the front face side of the first paper 1 with a ball-point pen 105, a capsule 102 is destroyed by its pressure by writing, and the colorless dye oozes out and adheres to the front face side of the second paper 2 (102A). A character or the like on the front face side can not be visually observed under this state. Thereafter, when a developer is coated on the second paper 2, the colorless dye develops color (102B). For coating of the developer, the developer is infiltrated to, for instance, an inner face side of a transparent filmy tape, which is sticked to a position to be colored of the second paper 2.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a carbonless paper and a method of using the same, in particular, a carbonless paper consisting of a first paper and a second paper to produce characters, symbols, etc. When writing with a ballpoint pen etc., the above 1st
Letters, symbols, etc. were written on the paper on the spot, and no visible letters appeared on the second paper, but it was possible to color the written contents at an appropriate time. Concerning carbonless paper and its usage.

[Conventional technology]

Carbonless paper, which consists of the first paper (upper paper) and the second paper (lower paper), eliminates the hassle of using carbon paper, etc., so it is not necessary to record the recorded contents for later. It is widely used in such fields.

Here, a method of recording on conventional carbonless paper will be explained with reference to FIG.

As shown in the figure, dye capsules 102 are coated on the back side of the upper paper 101 of carbonless paper, and the lower paper 103 is coated with dye capsules 102.
A color developer 104 is applied to the surface of.

To use such carbonless paper, for example, by recording characters, etc. from the top side of the bottom paper 101 with a ballpoint pen 105 with appropriate pressure, the dye capsules 102 applied to the back side of the bottom paper 101 will be destroyed. The colorless dye contained therein is adsorbed to the color developer 104 (activated clay or phenol resin) on the surface of the lower paper 103 and is oxidized to develop color, thereby producing a copy.

[Problem to be solved by the invention]

By the way, in the case of the conventional carbonless paper shown in FIG. 6, characters, symbols, etc. are written or colored on the upper surface of the lower paper 101 and the upper surface of the lower paper 103 at the same time as recording.

On the other hand, for example, in fields such as application forms for bank cash cards or shopping cards for mass retailers, in which a PIN number is entered at the time of application, the characters and symbols written on the bottom sheet 101 are necessary as a copy; It may be necessary to keep the characters, symbols, etc. on the side secret for a certain period of time.

[Means and effects for solving the problems] In order to solve the above problems, the present invention has a first paper and a second paper, and a writing instrument or the like can be used for recording and pressing on the upper surface of the first paper. While recording characters, symbols, etc. by means,
In carbonless paper on which the same characters, symbols, etc. are pressed and transferred onto the upper surface of the second paper, colorless dye capsules are applied to the lower surface of the paper, which will not develop color unless a specified color developer is applied even after the pressure breaks. A writing instrument, etc. is placed in a state where the first paper and the second paper are stacked, and a second paper to which the colorless dye exuded from the dye capsule that has been crushed by pressure is attached to the upper surface side. After recording and pressing, the second paper is provided with means for applying a color developer to the pressed portion on the upper surface side of the second paper.

Further, after recording and pressing with a writing instrument etc. while the first paper and the second paper are overlapped, the means for applying the color developer to the pressed part on the upper surface side of the second paper is a substantially transparent adhesive tape. Contains a color developer on the adhesive side.

Furthermore, it has a first paper and a second paper, and while characters, symbols, etc. are recorded on the upper surface of the first paper using a recording/pressing means such as a writing instrument, the same is recorded on the upper surface of the second paper. In the method of using carbonless paper in which characters, symbols, etc. are transferred by pressure, the first paper is coated with a colorless dye capsule that does not develop color even after being crushed by pressure, unless a specified color developer is applied to the lower surface. of,
A first step of placing the colorless dye oozing out from the dye capsule which has been pressed and destroyed on the upper surface side onto a second paper, and writing characters from the upper surface side of the first paper using a writing/pressing means such as a writing instrument. - A second step of destroying the dye capsule and adhering it to the upper surface of the second paper while recording symbols etc., and a third step of peeling off the first paper and the second paper; 2nd above
and a fourth step of applying a color developer to the upper surface of the paper.

[Example] Hereinafter, the carbonless paper of the present invention and the method of using the same will be explained based on the illustrated example.

As shown in FIG. 1, a dye capsule 102 made of colorless dye is coated on the back side of the first paper 1 used as the upper paper, and the 20th paper 2 disposed below is made of ordinary paper such as high-quality paper. It is paper, and no color developer has been applied to the surface in advance.

In this state, when characters, symbols, etc. are written on the upper surface side of the first paper 1 with the ballpoint pen 105, the characters, etc. are drawn on the upper surface side. Then, as shown in FIG. 2, the capsule 102 is destroyed by the writing pressure of the ballpoint pen 105, and the colorless dye inside oozes out and adheres to the upper surface of the second pen 2 (
102A).

In this state, characters and the like are not colored on the upper surface side of the second paper 2 and cannot be visually recognized by humans.

After that, if you need to visually check the content drawn on the second Gio 2, you can apply a color developer (commonly known as white ink) to the area where the colorless dye of the second Gio 2 is attached. The dye is adsorbed onto activated clay, phenol resin, etc., and is oxidized to develop color (indicated by reference numeral 102B in FIG. 3).

Here, the method of applying the coloring agent is, for example, as shown in FIG. Place this transparent tape in the correct position.

Paste (see Figure 5).

In this way, the characters 3b such as "Iroha" are colored on the inner surface of the transparent film, so that they can be visually recognized. After pasting the tape in this way, it not only prevents falsification of data such as adding or erasing additional characters, but also prevents the developer from adhering to hands or other documents. It is convenient to handle without any problems.

Moreover, as another means, it is of course possible to apply the color developer with an appropriate brush.

Furthermore, although this embodiment shows a case where a ballpoint pen is used as the pressing means, it is of course possible to use, for example, a wire dot printer, a water-based ballpoint pen, a pencil, or the like.

〔effect〕

According to the present invention, the characters etc. written on the first paper as the upper paper can be used as is, and the characters etc. written on the second paper side arranged below are kept secret unless prescribed means are used. It becomes possible to maintain the state.

[Brief explanation of the drawing]

FIG. 1 is a conceptual diagram showing an example of the carbonless paper of the present invention and its method of use; FIG. 2 is a conceptual diagram showing a case where a colorless dye is attached to the second paper according to an example of the present invention; FIG. 3 is a conceptual diagram showing the case where color is developed on the second paper according to an embodiment of the present invention, FIG. 4 is a diagram showing a means for applying the color developer used in the present invention, and FIG. FIG. 4 is a conceptual diagram when the implementation means shown in FIG. 4 is used, and FIG. 6 is a conceptual diagram showing the usage status of conventional carbonless paper. 1...first paper, 2...second paper, 3...
・Transparent tape, 102... Dye capsule, 105...
・Ballpoint pen.

Claims (1)

[Claims] 1. It has a first paper and a second paper, and while recording characters, symbols, etc. on the upper surface of the first paper using a recording/pressing means such as a writing instrument, In carbonless paper, in which the same characters, symbols, etc. are pressed and transferred onto the upper surface of the paper, the first paper is coated with a colorless dye capsule that does not develop color even after pressure destruction on the lower surface unless a specified color developer is applied. , and a second paper to which the colorless dye exuding from the crushed dye capsule is attached to the upper surface side, and the first paper and second paper are overlapped and recorded with a writing instrument etc. A carbonless paper characterized by comprising: means for applying a color developer to the pressed part on the upper surface side of the second paper after pressing. 2. After recording and pressing with a writing instrument etc. while the first paper and the second paper are overlapped, the means for applying a color developer to the pressed part on the upper surface side of the second paper is a substantially transparent adhesive tape. 2. The carbonless paper according to claim 1, further comprising a color developer on the adhesive side of the paper. 3. It has a first paper and a second paper, and while recording characters, symbols, etc. on the upper surface of the first paper using a recording/pressing means such as a writing instrument, the same is recorded on the upper surface of the second paper. In the method of using carbonless paper in which characters, symbols, etc. are transferred by pressure, the first paper is coated with colorless dye capsules that do not develop color even after being crushed by pressure, unless a specified color developer is applied to the bottom side of the paper. a first step of placing the colorless dye on the top side of the paper to which the colorless dye exuding from the dye capsule which has been crushed by pressing is attached; and a writing/pressing means such as a writing instrument from the top side of the first paper. A second step in which the dye capsule is destroyed and the colorless dye that oozes out is attached to the top side of the second paper while recording characters, symbols, etc.
A third step of separating the first paper and the second paper, and a fourth step of applying a color developer to the upper surface of the second paper. How to use carbonless paper.