JPS61143739A - Color recorder - Google Patents

Abstract

PURPOSE:To execute color recording with high quality by setting position films for three primary colors with a monochromatic thermal transfer device, exposing successively photosenstitive paper by using the three position films and pressurizing the paper to color the paper. CONSTITUTION:The signal inputted from an RGB signal input part 29 is converted to the three color signals; yellow, magenta and cyan from the three primary colors of light in a color processing part 30. The signals for one image plane are stored into a memory 31 and are read out of the memory. The signals by each color are fed to a thermal transferring and recording part 32 where the thermal transfer of a mark for positioning and a positive image is executed and a positive film 7 for exposing is obtd. A white light source 12 is lighted up for the specified time to execute exposure in the yellow region of a filter 10 when the film 7 is fed until the mark thereof is detected by a sensor 18. The exposure is in succession executed similarly with the magenta and cyan as well. The special photosensitive paper 9 is pressurized and fed by pressing rollers 15, 16 by which the unexposed capsules are broken and the dye is emitted to color the color forming layer. The color recording is thus executed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a high printing speed color recording device.

[Conventional technology]

2. Description of the Related Art Conventionally, there is an electrophotographic method as a color recording device having a high printing speed and high resolution. This has the problem that since powder is used as the dye, the head and the inside of the device become contaminated, resulting in low reliability.

Therefore, as a means to solve this problem, “The Mea”
dMicroencapsulated Imagine
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83+ and US Pat. No. 4,399,209. This uses special photosensitive paper, as shown in FIGS. 2 and 3. A color recording method using this special photosensitive paper will be explained below. In the figure, 1 is the base paper, 2
3 is a color-forming layer, and 3 is a capsule containing a dye that reacts with the color-forming layer 2 to form three primary colors, and is coated randomly on the color-forming layer 2 to form a layer.

According to this special photosensitive paper, when the capsule 3 is exposed to light, the capsule 3 hardens and becomes unexposed.
has the property of not curing.

Therefore, as shown in FIG. 2, the portions of the capsule 3 that are not required for recording are exposed to light, while the portions of the capsule 3 that are necessary for recording are not exposed to light. After that, as shown in FIG.
When pressure is applied, the capsules 3 that have been exposed to light and hardened will not be destroyed, but the capsules 3 that have not been exposed to light will be destroyed, and the coloring dye will react with the coloring layer 2 to create color.

Another method is to apply 3 layers on the base paper using the same principle as above.
Separately prepare special photosensitive transfer paper coated with capsules containing dyes that produce primary colors, and transfer paper coated with a coloring layer on the base paper, and after exposing the capsules in the required areas, bring the coated sides of both papers together. There is also a method of feeding and applying pressure to perform color transfer.

[Problems to be solved by the present invention]

According to the above method using special photosensitive paper, the recording speed can be increased by exposing one screen at a time, but in order to obtain high-resolution recording quality, it is necessary to use positive film for the three primary colors for exposure. must be created. but,
Since this positive film is produced using a method such as silver halide photography, the production process is complicated and requires time and cost.

[Means for solving problems]

In the present invention, in a color recording unit using special photosensitive paper, a monochrome thermal transfer method 5 is used to create a body image for each of the three primary colors, and '1 the special photosensitive paper is created using this body image. It is characterized by being exposed to light.

[Effect]

Special photosensitive paper is sequentially exposed to light using positive film for three colors, and then pressure is applied to destroy the capsules and color the coloring layer in that area, thereby producing high quality color recording.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a schematic configuration diagram, Figure 4 is a perspective view of the filter section, Figure 5 is a perspective view of the positive film, and Figure 6 is a block diagram explaining the operation of positive recording. The head, 6 is a black ink donor film, 7 is a positive film made of a transparent film notebook, and 8 is a platen installed opposite to the thermal head 5. These Q constitute a thermal transfer device for producing a positive.

9 is a special photosensitive paper in which a capsule containing a dye that develops the three primary colors described above and a coloring layer are coated in layers on a base paper; 10;
11 is a filter, and 11 is a mount, which exposes the special photosensitive paper 9 by applying light from a white light source 12 containing ultraviolet light to the positive film 7 through the filter 10.

13 and 14 are feed rollers, 15 and 16 are pressure rollers facing the feed rollers 13 and 14, respectively, 17 is a positive film take-up roll, and 18 is a detection sensor.

The filter 10 is disk-shaped as shown in the fourth factor, and has two filters that transmit only light of a wavelength (approximately 470 μm) that sensitizes a yellow capsule, and a filter that transmits only light of a wavelength (approximately 390 μm) that sensitizes a magenta capsule. It is composed of a filter 20 that transmits only light rays, and a filter 21 that transmits only light rays of a wavelength (approximately 350 μm) that sensitizes the shear capsule, and has a magnet 22 and a Hall element 23 on its surface.
The motor 24 for filter selection is activated.

The form of the positive film 7 after recording is shown in Figure 'fJ:, p. 5. The thermal head 5 thermally transfer-records a yellow bong image as black to form area 25, thermally transfer-records a magenta positive image as black to form area 26, and further thermally transfer-records a cyan positive image as black to form area 27. A mark 28 for alignment is placed at the beginning of each area by thermal transfer recording using the thermal head 5. This mark 28 is the detection sensor 18
It is detected by n.

FIG. 6 is a block diagram illustrating the process of thermal transfer recording on the positive film 7. The RGB signal input section 29 is connected to the color processing section 30, the color processing section 30i13 is connected to the color-specific frame memory 31, and the thermal transfer recording is performed. A signal is input to the section 32 to set the Hf positive film 7 in the heat transfer section 4.

The operation of this embodiment with the above configuration will be explained below.

First, a signal input manually from the FIGB signal input section 29 is processed by the color processing section 30 into three colors of yellow, magenta, and cyan from RGB, that is, the three primary colors of light, and all data is stored in a frame memory 31 for each color. Save screen space for one color at a time,
Signals are sent to the thermal transfer recording unit 32 for yellow, magenta and 77 colors, and the mark 28 for positioning and the positive image are thermally transferred and recorded onto the positive film 7 to form a positive film 7 for exposure.

Next, the filter 10 is set as an initial setting, detection is performed by the Hall element 23, the filter selection motor 24 is driven, and the filter 19 is set directly below the mount 11.

The positive film T is fed until the mark 28 is detected by the sensor 18, a yellow area 25 is set directly under the mount 11, and the white light source 12 is turned on for a certain period of time to perform exposure. After the yellow exposure is completed, set the magenta filter 20 of the filter 10 directly under the mount 11 in the same way as for yellow,
The magenta area 26 of the positive film 7 is set and magenta exposure is performed, and then cyan exposure is performed in the same process.

After the exposure of each of the above three colors is completed, the special photosensitive paper 9f is fed under pressure by the pressure rollers 15 and 16, thereby destroying the unexposed capsules and releasing the dye, causing the coloring layer to develop color and delivering color. complete.

FIG. 7 shows a second embodiment, in which the special photosensitive paper of the above embodiment is divided into two components of navy blue, a special photosensitive paper for transfer 33 in which capsules of three primary colors are coated on the base paper, and a base paper and a transfer paper 34 coated with a coloring layer.

According to this, in the same process as shown in the first embodiment, the special photosensitive paper 33 for transfer is exposed three times in three primary colors, and then the pressure rollers 15 and 16 are applied to the transfer paper 34 and the coated surface thereof. By pressurizing and feeding the two sheets together, color transfer is performed and the transfer paper 34 is discharged, and the special photosensitive transfer paper 33 is wound around the winding roller 35, and the color recording is completed.

〔Effect of the invention〕

According to the present invention described in detail above, the color signal f, one color at a time, is created as a positive film on a transparent film sheet using a monochrome thermal transfer device with high reliability and high resolution, thereby creating a positive film. can be created in an extremely simple process, and since it has a high resolution, it has the effect of providing high quality and highly reliable color recording.

[Brief explanation of drawings]

FIG. 1 shows a schematic configuration (2) showing one embodiment of the present invention;
The figure is an enlarged cross-section (2) showing an example of special photosensitive paper, the third figure is an enlarged cross-sectional view showing the recording state, the fourth factor is a perspective view of the filter, figure 5 is a perspective view of positive film, and figure 6 1 is a block (2) for explaining the operation of positive recording, and the seventh factor is a schematic configuration diagram showing the second embodiment. 1... Base paper 2... Coloring layer 5... Thermal head 7... Positive film 8... Platen 9.
...Special photosensitive paper 10...Filter 11...Mount 15゜16...Pressure roller Patent applicant Oki Electric Industry Co., Ltd. Agent Patent attorney Takashi Kanakura @1: @22゛@4CiU 6 Voice record 7 Country

Claims (1)

[Claims] There is a coating layer of capsules containing dyes that develop 1 and 3 primary colors and a coloring layer, and this capsule is exposed to light and hardened.
In a color recording device that uses photosensitive paper, in which the unexposed capsules are destroyed by applying pressure and the coloring layer is colored by the dye inside, the positive films of each of the three primary colors are set on a monochrome thermal transfer device. , a color recording device characterized in that these three positive films are used to sequentially expose photosensitive paper to develop color under pressure.