JPH0158077B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a color transfer printing method capable of performing multicolor printing in transfer printing using, for example, heat-sensitive dots.

(Prior Art) In recent years, color printing methods using transfer printing have come into practical use in the printing industry. Therefore, the conventional color printing method is a so-called textile printing method in which a stylized pattern is printed in color on transfer paper, the transfer paper is superimposed on the paper, and then transferred by applying heat or pressure from the back side of the transfer paper. The only methods that have been put into practical use or have been devised are those that print in a single color using a thermal head. Therefore, printing methods for color display devices have the disadvantage of being expensive and large, as seen in color PPC copying machines, silver halide photography, and the like.

(Problems to be Solved by the Invention) Conventionally, as mentioned above, multicolor printing devices have become expensive and large, as seen in color PPC copying machines, silver halide photography, etc. I had the problem of putting it away.

Therefore, the present invention has been made to solve the above problems, and provides a color transfer printing method that can easily perform multicolor printing by applying it to a transfer printing device that is small and has a simple structure. The purpose is to

[Structure of the invention]

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a transfer medium in which a plurality of different color transfer agents are applied adjacent to each other on one side of thin paper or film, and The transfer agent of the transfer medium is superimposed on the print recording surface of the recording medium, the transfer medium is heated or pressurized, and a predetermined pattern is transferred and recorded on the recording medium by the recording head, and then the transfer medium or the recording medium is The present invention is characterized in that the transfer medium is sequentially moved by the width dimension of the transfer agent in a direction perpendicular to the conveying direction of the recording medium every time one stroke of printing is completed.

(Function) In the present invention, a transfer medium in which a plurality of different color transfer agents are applied adjacent to each other on one side of a thin paper or film is moved with respect to a recording medium while being sequentially heated or pressurized by the width dimension of the transfer agent. By doing so, it is possible to easily perform multicolor transfer printing in a small size.

(Embodiment) Hereinafter, an example in which the present invention is applied to a thermal dot type printing device will be described based on an embodiment shown in FIGS. 1 and 2. FIG. 1 is a process diagram for explaining the principle of thermal transfer printing. In FIG. 1(), 1 is plain paper, and a thin paper or a transfer paper 2 with an ink layer 2b formed on one side of a film 2a is stacked on the opposite side of the plain paper 1, and this transfer paper 2 is Heating is performed from the back side using, for example, a heat-sensitive dot head 3. Thereafter, by peeling the transfer paper 2 from the plain paper 1 as shown in FIG. 1(), the heated portion of the ink layer 2b can be transferred to the plain paper 1.

Note that, as shown in the figure, a rotatable guide roller 4 is provided at the tip of the thermal head 3, and a guide roller 4 is provided at the tip of the thermal head 3.
It is constructed so that it can be peeled off smoothly without being damaged by the heat-sensitive head 3. Further, a platen roller 5 is provided opposite the thermal head 3 so that the transfer paper 2 and the plain paper 1 are brought into close contact with each other. Furthermore, H is the heat generating part of the heat sensitive head.

Next, FIG. 2 shows an example of transfer paper suitable for multicolor transfer printing. That is,
As shown in FIG. 2, the transfer paper 2 has an ink layer 2b formed in stripes (for example, width 5 to 10 mm), for example, black 2b-1, cyan 2b-2, and magenta 2.
b-3 and yellow 2b-4 are repeatedly applied in this order. Thus, in the first time A, the transfer paper 2 and the thermal dot head 3 are positioned as shown by solid lines and transferred to the plain paper 1. By this first printing, a striped transfer pattern is formed on the plain paper 1 in the same width range in the order of black, cyan, magenta, and yellow. Next, from the second time B onwards, the transfer paper 2 and the thermal dot head 3 are sequentially transferred in the direction of the arrow z by the stripe width l, and the plain paper 1 is transferred in the direction of the arrow x or y. Black 2b- over the entire surface of paper 1
1. Cyan color 2b-2, magenta color 2b-3, and yellow color 2b-4 are selectively transferred by the thermal head 3, so that color printing can be performed.

In the figure, L _R indicates the range of the heat generating portion H of the heat-sensitive dot head 3, and L _T indicates the width dimension of the transfer paper 2.

Although the above embodiments have been described using thermal transfer using a thermal dot head as an example, the printing method of the present invention does not necessarily have to be thermal transfer, and can also be applied to ink ribbon type dot printing.

Further, in the above embodiment, the thermal head and the transfer paper are moved integrally in the z direction, but if the width of the transfer paper is wide, it is not necessarily necessary to move them integrally, and only the transfer paper may be moved. Furthermore, the plain paper 1 may be a plastic card or the like.

〔Effect of the invention〕

As described above, the present invention relates to a color transfer printing method using a transfer paper medium in which transfer agents of a plurality of different colors are applied adjacent to each other on one side of thin paper or film. That is, by moving this transfer medium relative to the recording medium while sequentially heating or applying pressure by the width dimension of the transfer agent, it is possible to easily perform multicolor transfer printing in a small size. .

[Brief explanation of drawings]

FIG. 1 is a process diagram for explaining thermal transfer printing, and FIG. 2 is a diagram for explaining the structure and usage of a color printing transfer paper according to an embodiment of the present invention. 1... Plain paper (recording medium), 2... Transfer paper for color printing (transfer medium), 2b... Transfer agent, 3... Thermal dot head (recording head).

Claims (1)

[Claims] 1. While supplying a transfer medium in which transfer agents of multiple different colors are applied adjacent to each other on one side of thin paper or film, the transfer agent of the transfer medium is superimposed on the print recording surface of the recording medium, and the transfer medium is After heating or applying pressure to transfer and record a predetermined pattern onto the recording medium using a recording head, the transfer medium or recording medium is moved in a direction perpendicular to the direction in which the recording medium is transported after each printing stroke. A color transfer printing method characterized by sequentially moving a transfer medium by the width dimension of a transfer agent.