JPS61173981A - Color recorder - Google Patents

Abstract

PURPOSE:To produce positive film at low cost by exposing to light photosensitive transfer color-forming paper provided with a color-forming layer and a microcapsule containing 3 different primary colors or a photosensitive transfer paper coated with a microcapsule. CONSTITUTION:A thermal transfer recording means is driven by a thermal transfer recording part 22, and a positive image is written in black on a yellow filter 16a, a magenta film 16b and a cyanine 16c of a filter sheet 12 by the thermal transfer recording means. Then light exposure occurs sequentially on photosensitive transfer color-forming paper 1 through each filter 16a-16c. Exposure of three primary colors to light occurs on the thermal transfer color-forming paper 1, and microcapsules of different colors not used for recording are exposed to light and cured. After this process, the photosensitive transfer color-forming paper 1 is caused to run by the rotation of a pressure roller 3, 4 and the exposed portion is pressed, resulting in the destruction of microcapsules of different colors not cured during light exposure and the subsequent color-formation of the contained dyes in contact with the color-forming layer. Thus the colors of an image corresponding to signals input to an RGB signal input part for the first time recorded on the photosensitive transfer color-forming paper 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a special paper comprising a base paper provided with microcapsules containing dyes that react with a coloring layer to develop three primary colors;
The present invention relates to a color recording device that performs color recording using color filters of three primary colors and thermal transfer recording means.

[Conventional technology]

A color recording device using electrophotography is known as a conventional color recording device with high resolution and high recording speed, but since this color recording device uses powder called toner, a latent image is formed on the photoreceptor. The optical head for writing and the inside of the device are contaminated by the toner scattered during development, etc., resulting in a deterioration in recording quality and other drawbacks such as a lack of reliability.

By the way, “The Mead Microenca
psulated Imaging System”
5PSE 23rd Fall Symposium
on Microimaging Technology
In November 15, 1983, a yellow color was formed on a coloring layer provided on a base paper by reacting with the coloring layer.

Using photosensitive transfer coloring paper, which is made up of randomly coated microcapsules containing three types of dyes that produce three colors, magenta or cyan, the photosensitive transfer coloring paper is exposed to light and microcapsules that are not used for recording are used. After curing, by applying pressure with a roller or the like, the microcapsules that were not hardened during the exposure are destroyed and the dye inside is transferred and adhered to the coloring layer, thereby creating a desired color record on the photosensitive transfer coloring paper. The technique to obtain it is shown.

Also, “U.S., Patent 4, 399
, 209. Aug, 16, 1983'' uses a coloring paper in which the coloring layer is provided on a base paper and a photosensitive transfer paper in which the microcapsules are coated on the base paper, and the photosensitive transfer paper is exposed to light for recording. After curing the microcapsules that will not be used for coloring, the microcapsules that were not hardened during the exposure are destroyed by overlapping them with coloring paper and applying pressure with a roller, etc., and the dye inside is transferred to the coloring layer of the coloring paper. Techniques have been described for depositing and thereby obtaining the desired color record on chromogenic paper.

In color recording technology that uses photosensitive transfer color paper or special paper such as photosensitive transfer paper or color paper, the recording speed can be increased by exposing one screen at a time, and it is possible to increase the recording speed by exposing one screen at a time. Since no color is used, the inside of the apparatus is not contaminated, and therefore a highly reliable color recording apparatus can be realized. However, it has the following problems.

[Problem that the invention seeks to solve]

In other words, in order to obtain high-resolution recording quality using the above-mentioned technology, it is necessary to create a positive film of the three primary colors and perform exposure through this positive film. A positive film preparation method such as silver halide photography can be considered, but this method using silver halide photography etc. complicates the process.

In addition, when using a white light source as the light source for exposure, 3
A filter that transmits light of a wavelength that acts on only one of the types of microcapsules and a switching mechanism are required, which makes the configuration complicated, large, and expensive. Ta.

The present invention was made to solve these problems, and it not only simplifies the process of creating a positive film, but also eliminates the need for a filter switching mechanism and has a relatively simple configuration.
Furthermore, the object is to realize a small, inexpensive color recording device with excellent recording quality.

[Means for solving problems]

In order to solve the above-mentioned problems and achieve the objects, the present invention uses a photosensitive transfer coloring paper having the above-mentioned coloring layer and microcapsules, or a coloring paper and a photosensitive transfer paper, and also comprises a thermal head, an ink donor film, etc. By using a thermal transfer recording means and applying dyes that transmit light of the three primary colors to a transparent filter sheet for each color, yellow is produced sequentially in the longitudinal direction.

It is equipped with a filter sheet in which filters of the three primary colors of magenta and cyan are continuously formed.

[Effect]

According to the above-mentioned means, a positive image of one screen is written on each of the three primary color filters of the filter sheet by the thermal transfer recording means, and this is used as a positive film to print the three primary colors on the photosensitive transfer coloring paper or photosensitive transfer paper. After exposure, the desired color recording is made by applying pressure to the photosensitive transfer coloring paper using a pressure means such as a roller, or by placing the photosensitive transfer paper on top of the coloring paper and applying pressure using the pressure means. It can be obtained on transfer color paper or color paper.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a side view schematically showing the structure of a first embodiment of a color recording apparatus according to the present invention, and FIG. 2 is a perspective view showing the structure of a filter sheet used in the present invention.

In the figure, 1 is a photosensitive transfer coloring paper, which is constructed by providing a coloring layer on a base paper as described above, and randomly applying microcapsules containing dyes that develop three primary colors onto this coloring layer. There is. This photosensitive transfer coloring paper 1 is wound around a feeding roller 2a, and the feeding opening °-
The roller 2a is guided between a pair of pressure rollers 3 and 4 arranged at a constant interval, and travels in a predetermined direction while being pressurized by the rotation of the pressure rollers 3 and 4. It is supposed to be done.

Reference numeral 5 denotes a mount, which connects the feeding roller 2a and the pressure roller 3.
, 4), and a white light source 6 containing ultraviolet light is attached to the top of this mount 5. The photosensitive transfer coloring paper 1 is exposed to light through a filter sheet.

Reference numeral 7 denotes a mark detection sensor, which is arranged near one end of the mount 5.

8 is a thermal head, 9 is a platen provided to face the thermal head 8, 1o is an ink donor film formed by providing a layer of black heat-soluble ink on the surface of a film base material, and this ink donor film 10 is The paper is fed out from the feed roller 11a, passed between the thermal head 8 and the platen 9, and is arranged to be wound up on the take-up roller 11b, and these constitute the thermal transfer recording means in this embodiment. There is.

12 is a filter sheet, 13 and 14 are the filter sheets)
The filter sheet 12 is fed out from the feeding roller 15a, and passed between the platen 9 and the ink donor film 10, and between the photosensitive transfer color paper 1, the mount 5, and the sensor 7. After passing through
The winding roller 1 passes between the feed o-213 and 14.
It is designed to be wound up at 5b.

This filter sheet 12 has a wavelength of approximately 350 nm to 470 nm.
Easy to transmit light and ultraviolet rays in the region including the wavelength of rLm,
The yellow microcapsules of the photosensitive transfer coloring paper 1 are exposed to light in the longitudinal direction of a thin flexible band-shaped filter sheet made of polyethylene or polyester.
A dye that transmits only light with a wavelength of 0 nm, a dye that transmits only light with a wavelength of approximately 390 nm that sensitizes magenta microcapsules, and a dye that transmits only light with a wavelength of approximately 350 nm that sensitizes cyan microcapsules. , by repeatedly applying the coating to each predetermined length, the yellow filter 16a and the magenta filter 16 are coated as shown in FIG.
b.

It has a structure in which cyan filters 16e are sequentially and integrally formed.

In addition, 17a is a positive image for yellow, 17b is a positive image for magenta, and 17c is a positive image for cyan.
1 to 18c are marks for position detection, and these are the marks mentioned above.
- It is written on each filter 16a to 16c by a thermal transfer recording means using a full head 8 or the like.

FIG. 3 is a circuit block diagram of the color recording apparatus shown in FIG. The signal input section 19 is connected to a color processing section 2o that converts RGB into three primary colors, and this color processing section 20
is connected to a color-specific frame memory 21 that stores three primary color data for each color, and this color-specific frame memory 2
1 is the thermal head 8 and the ink donor film 1.
A thermal transfer recording section 2 that drives a thermal transfer recording means consisting of 0, etc.
Connected to 2.

Next, the operation of the above-described configuration will be explained.

First, RGB signals for one screen are input to the RGB signal input section 19 and transferred to the color processing section 20.
0 converts this RGB signal, which is the three primary colors of light, into three primary colors: yellow (2), magenta (b), and cyan (C).
) into an MMC signal.

This MMC signal is sent to the color-separated frame memory 21 and stored as one screen's worth of data for each color.

When the signals are sent to the thermal transfer recording section 22 in the order of C, the thermal transfer recording means consisting of a thermal head 8° platen 9, an ink donor film 10, etc. is driven by the thermal transfer recording section 22, and the thermal transfer recording means drives the thermal transfer recording means. Filter sheet 1
No. 2 yellow filter 16a.

After a positive image is written in black on the magenta filter 16b and the cyan filter 16c, each of these filters 1
The photosensitive transfer coloring paper 1 is sequentially exposed to light via 6a to 16c.

That is, first, a yellow signal for one screen is sent from the color-specific frame memory 21 to the thermal transfer recording section 22, and based on this signal, the thermal transfer recording section 22 selectively drives the heating element of the thermal head 8. Feeding roller 11a
Then, the take-up roller 11b rotates to feed the ink donor film 10. As a result, the ink in the ink layer of the ink donor film 10 is transferred to the yellow filter 16a of the filter sheet 12, and the yellow positive image 1
71L is written in black that does not transmit light. At this time, a mark 1 indicating the position of the yellow filter 16a is also displayed.
8a is also written.

After that, the filter sheet 12 is run by the feed rollers 13, 14, and when the mark 18a is detected by the sensor 7, the filter sheet 12 stops running. As a result, the yellow filter 16a on which the yellow positive image 17a is written is positioned directly below the mount 5, and by using the yellow filter 16a as a positive film, the white light source 6 is turned on for a certain period of time to produce photosensitive transfer. Exposure of colored paper 1 is performed.

Here, the yellow positive image 17a of the yellow filter 16a
As mentioned above, since this is written using black ink that does not transmit light, only light of approximately 470 nm is transmitted through the areas other than this yellow positive image 17a. The microcapsules containing the yellow dye above are exposed to light and hardened.

When the yellow exposure is completed, the next color-specific frame memory 2
The magenta signal for one screen from 1 is sent to the thermal transfer recording unit 22, and after the magenta positive image 17b and mark 18b are written on the magenta filter 16b of the filter sheet 12 in the same process as above, this magenta filter 16b
is used as a positive film and exposed to light on the same screen of the photosensitive transfer coloring paper 1, and the microcapsules containing the magenta dye are cured.

Furthermore, a positive image 1 for shear y is similarly placed on the cyan filter 16c.
7c and mark 18c are written and n1 exposure is performed to harden the microcapsules containing the cyan dye.

As described above, the heat-sensitive transfer coloring paper 1 is exposed to light in the three primary colors, and after the microcapsules of each color not used for recording are exposed to light and hardened, the photosensitive transfer coloring paper 1 is transferred to the pressure roller 3,
When the exposed part is pressed while being rotated by the rotation of step 4, the microcapsules of each color that were not cured during exposure are destroyed, and the dye inside is transferred and adhered to the coloring layer to develop color. A color record of an image corresponding to the signals first input to the RGB signal input section 19 is obtained on the photosensitive transfer color paper 1.

FIG. 4 is a side view schematically showing the structure of a second embodiment of the color recording apparatus according to the present invention.

In this embodiment, in place of the photosensitive transfer coloring paper 1 described above, a coloring paper 23 is provided, in which a coloring layer is provided on a base paper, and dyes that react with the coloring layer and develop into three primary colors are placed on the base paper. Photosensitive transfer paper 2 made of randomly coated microcapsules
4, in which the colored paper 23 is fed out by the roller 2.
5, the photosensitive transfer paper 24 is fed out in a predetermined direction from the position of the feeding roller 26 through between the pressure rollers 3 and 4, and the photosensitive transfer paper 24 passes from the position of the feeding roller 26 under the mount 5, and passes between the pressure rollers 3 and 4. 3 and 4, and is wound onto a winding roller 21.

Note that the other configurations are the same as in the first embodiment.

In the second embodiment with such a configuration, the photosensitive transfer paper 24
After curing the microcapsules not used for recording by performing three exposures of three primary colors in the same process as in the first example,
By rotating the pressure rollers 3 and 4, the coloring paper 23 and the photosensitive transfer paper 24 are run in such a manner that their coloring layer coated surfaces and microcapsule coated surfaces overlap each other, and at the same time pressure is applied. The unexposed microcapsules on the transfer paper 24 are destroyed, and the dye inside is transferred and adhered to the coloring layer of the coloring paper 23, so that a color record is obtained on the coloring paper 23.

The photosensitive transfer paper 24 that has passed between the pressure rollers 3 and 4 is wound up by a take-up roller 27, and the colored paper 23 is separated from the photosensitive transfer paper 24 and sent out in a predetermined direction.

〔Effect of the invention〕

As explained above, the present invention produces a yellow color by applying dyes that transmit three primary colors of light to a strip-shaped film material.

A positive image based on a color signal is written one screen at a time on a filter sheet with magenta and cyan filters formed thereon by a thermal transfer recording means, and each color filter with these positive images written is used as a positive film, and a coloring layer is formed on the surface. The process is simpler than conventional silver halide photography because each color is exposed to light on photosensitive transfer coloring paper equipped with microcapsules containing dyes of the three primary colors, or photosensitive transfer paper coated with microcapsules. In addition to being able to produce a positive film at a low cost using a simple process, the positive image obtained by the present invention is a monochromatic black positive image with high resolution, so that exposure can be performed with high reliability.

Furthermore, as described above, the present invention has a structure in which the filter sheet that also serves as a positive film runs directly under the mount, so there is no need for a filter switching mechanism as in the past, and the configuration is relatively simple. Another advantage is that it is possible to realize a small, inexpensive color recording device with high reliability and high recording quality.

[Brief explanation of the drawing]

FIG. 1 is a side view schematically showing the structure of a first embodiment of a color recording apparatus according to the present invention, FIG. 2 is a perspective view showing the structure of a filter sheet used in the present invention, and FIG. FIG. 4 is a circuit block diagram of the color recording apparatus shown in the figure, and FIG. 4 is a side view schematically showing the configuration of the second embodiment. 1: Photosensitive transfer color paper 3, 4: Pressure roller 5: Mount 6: White light source 8: Thermal head 9 Nibraten
10: Ink donor film 12: Filter sea') 1
6a: Yellow filter 16b: Magenta filter 16
c Nijian filter 17a: Positive image for yellow 17b
:Positive image for Maze/Ri 17c Positive image for Nijian 19:
RGB signal input section 20 Two-color processing section 21: Color-specific frame memory 22: Thermal transfer recording section 23: Color-forming paper 24: Photosensitive transfer paper Patent applicant Oki Electric Industry Co., Ltd. agent Patent attorney Takashi Kanakura Class 2 1- Procedure Written amendment (method) June 10, 1985

Claims (1)

[Scope of Claims] 1. A photosensitive transfer coloring paper formed by randomly coating a coloring layer provided on a base paper with microcapsules containing dyes that react with the coloring layer to develop three primary colors, or Using a coloring paper in which the coloring layer is provided on a base paper and a photosensitive transfer paper in which the microcapsules are randomly coated on the base paper, the photosensitive transfer coloring paper or photosensitive transfer paper is exposed to light for one screen in three primary colors. After hardening the microcapsules that are not used for recording, the photosensitive transfer coloring paper is pressed with a pressure means such as a roller, or the photosensitive transfer paper and the coloring paper are overlapped and the In a color recording device, the microcapsules that were not hardened during exposure are destroyed by applying pressure with a pressure means, and the dye inside is transferred and adhered to the coloring layer, thereby producing a color record on photosensitive transfer coloring paper or coloring paper. By applying a thermal transfer recording means consisting of a head, an ink donor film, etc., and a dye that transmits light of the three primary colors to a transparent filter sheet for each color, filters of the three primary colors of yellow, magenta, and cyan are sequentially formed in the longitudinal direction. A continuously formed filter sheet is provided, and a positive image for one screen is written on each of the three primary color filters of the filter sheet by the thermal transfer recording means, and the positive images are transferred through the three primary color filters on which these positive images are written. A color recording apparatus characterized in that the photosensitive transfer coloring paper or the photosensitive transfer paper is exposed to light.