JP2627742B2 - Modification method of proof character mount and photographic paper for modification - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a character mount for proofreading such as first-strike and re-strike, in which a photographic paper having a developed image is attached to a mount in a printing process. And a photographic paper for retouching.

[Conventional technology]

In order to manufacture printed matter, especially printed matter mainly including characters and designs, first, a photographic paper having a developed character image or a photographic paper having a design image created by a photo-typesetting machine is provided on a surface of a mount. A proofreading character mount, so-called first-strike character mount, which is pasted in the layout described above, is sent to a customer by copying it with a copier and requesting proofreading.

If there is any correction as a result of the proofreading, remove the photographic paper part of the first school stroke letter mount paper corresponding to the image part of the required correction part that has been corrected in red on the copy paper, and the corrected character Alternatively, a photographic paper piece obtained by developing the image portion of the design is attached.

The character backing of the first school hit, which has been modified in this manner (this character backing for proofing will be described later, but will be referred to as the character backing of the back schooling again because it will be used for proofreading again), is then taken by the camera. To make a negative film, and the negative film is further turned positive. Then, using this, a blue print is produced in the case of monochromatic printing, and a color proof print is produced in the case of color print, and is sent to the customer again to request proofreading.

Then, if there was any correction as a result of the proofreading, the photographic paper part of the character mount of the re-strike corresponding to the image part of the necessary correction part that was corrected in red letters such as blue printing was removed, and it was corrected there. A piece of photographic paper on which the image portion of the character or design has been developed is pasted.

In the same manner as described above, after the pasting is completed, that is, the character mount of the reprinted character after the retouching is completed (it may be referred to as a three-character printed character mount if used for the third proofreading). Is prepared and used as a printing film master. Alternatively, instead of the positive, that is, the image portion of the retouched portion of the printing plate precursor may be removed, and a film piece obtained by developing the retouched image portion may be attached to the portion. Next, using this, it is brought into close contact with the PS plate, exposed, and plate-making is performed.

In the above-described conventional correction method of the proofing character mount, both the photographic paper and the photographic paper piece to be pasted have a white ground color.

[Problems to be solved by the invention]

In this way, photographic paper pasted on the mount from the beginning,
When the photographic paper piece to be pasted at the time of retouching has the same ground color, if there are many places to be pasted, etc., during the pasting work and after the pasting work, which part was modified, Or, it is not obvious at a glance whether or not the modification of all the parts is actually completed, and the load of the plate inspection work becomes large.

 An object of the present invention is to solve such a problem.

[Means for solving the problem]

In the present invention, at the time of the above-mentioned retouching, the ground color of the photographic paper piece to be pasted is applied to the photosensitive film to be formed by exposing and developing an image (a so-called retouched image which has been pasted and retouched) in the next step. The above object is achieved by providing a color having a color sensitivity to the printing paper and a color different from that of the photographic paper originally attached to the mount.

[Action]

By doing so, for example, a photographic paper having a blue ground color is pasted on a photographic paper having a white ground color originally adhered to the character mount of the first school hit, and the following process is performed. Exposure, the blue ground color photographic paper has the same effect on the photosensitive film as the white ground color photographic paper, completely different from the conventional case where the white ground color photographic paper is pasted In addition, the discriminability based on the color difference is enhanced, and the plate inspection work of the retouched portion is facilitated.

〔Example〕

The invention will now be described in more detail with reference to the drawings.
FIG. 1 shows, as an example of a proofreading character mount, a first-stroke character mount in which a photographic paper 2 having a developed image is pasted on a mount 1. The image can be composed of, for example, a character image portion 2a and a design image portion 2b.

As described above, the character mount of the first school hit shown in FIG. 1 is copied and sent to the customer for calibration. If the portion to be modified is, for example, in the character image portion 2a, the photographic paper portion 3 corresponding to the portion to be modified is removed as indicated by an arrow A, and a photographic paper piece obtained by developing the modified image on the portion is removed. 4 as shown by arrow B.

The so-prepared character-backing paper of the first school hit, so-called character-backing paper of the re-strike, was then taken with a camera to obtain a negative, further inverted it to obtain a positive, and then a blueprint for proofreading (monochrome) ) Or make a color proof and send it to the customer for proofreading again.

When there is a portion to be modified, the above modification is performed again, or the necessary modified portion of the printing film original plate, which is a positive having substantially the same form as shown in FIG. Similarly, the retouched image portion is retouched by pasting a developed film piece, and then is brought into close contact with a PS plate and exposed to perform plate making.

In this case, the background color of the photographic paper piece 4 to be pasted is a color having a color sensitivity to a negative film as a photosensitive film on which an image is to be formed by exposure and development in the next step. Make the color different from the ground color.

The photographic paper 2 most typically has a white ground color,
When the negative film exposed in the next step is the most common film, the background color of the photographic paper piece 4 is preferably blue. The specific sensitivity of the most common film (eg, Sakura Royal Ortho Film ROH100E, trade name) varies according to the wavelength of light, as shown in FIG. That is, the most common films sense light in the wavelength range of about 360 to about 570 nm. Incidentally, in the case of blue light, the spectral reflectance is as shown in FIG.
The reflectance peaks in the range of 0 to about 550 nm. This means that the most common film feels the reflected light from the photographic paper piece 4 having a blue ground color the same as the reflected light from the photographic paper 2 having a white ground color. No background color photographic paper piece 4 is used in place of the white ground color photographic paper piece.

On the other hand, in the case of colors other than blue, the reflectance is extremely low in the wavelength range shown in FIG. 2, and the effect on the film is different from that in the case of reflection from a white ground color. It is not possible to use a background color photographic paper piece 4.

In addition, as for the combination of the ground colors of the photographic paper 2 and the photographic paper piece 4, it goes without saying that the photographic paper 2 may have a blue ground color and the photographic paper piece 4 may have a white ground color.

In addition, in order to make the ground color of the photographic paper blue, the photographic paper may be dyed blue, or may be coated,
Other methods may be used.

The above-described principle can be applied to the above-described modification of the printing film master. In this case, the ground color of the retouching film piece to be pasted on the colorless and transparent ground color printing film original is blue and transparent.

In the above-described example, the ground color of the photographic paper piece 4 is blue. However, when the photosensitive film is a special film other than the general film, the color sensitivity is different, and the wavelength range to be sensed is different. Naturally, a case where the ground color of the printing paper piece 4 is a color other than blue is appropriate.

〔The invention's effect〕

As described above, in the present invention, the ground color of the photographic paper piece to be pasted, that is, the photographic paper for retouching, has the color sensitivity to the photosensitive film, and the ground color of the photographic paper originally adhered to the mount. By using different colors, the pasting work of photographic paper is not affected at all, and by simply performing the conventional pasting work, the repaired parts can be seen at a glance, reducing the burden of plate inspection work can do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a photographic paper piece for retouching is pasted on a photographic paper having a developed image of a character mount of a first-struck character, and FIG. 2 shows a change in specific sensitivity according to the wavelength of light of a photosensitive film. FIG. 3 is a graph showing the spectral reflectance of blue light. 1 ... Mount, 2 ... photographic paper, 2a ... character image, 2b ... design image, 3 ... photographic paper part to be removed, 4 ... photographic paper piece.

Claims (6)

(57) [Claims] A photographic paper having a developed image is attached to a mount, a photographic paper portion corresponding to an image portion of a correction required portion is removed from the proof character mount, and the removed portion is provided with the modified development. A method of modifying a proofreading character mount by pasting a photographic paper piece having a finished image portion, wherein the ground color of the photographic paper piece is applied to a photosensitive film to be formed by exposing and developing the image in the next step. A method for modifying a proofreading character mount, characterized in that the color has a color sensitivity and is different from the ground color of the photographic paper having the developed image. 2. The method according to claim 1, wherein the ground color of the photographic paper is white and the ground color of the photographic paper piece is blue. 3. The method according to claim 1, wherein the ground color of the photographic paper is blue, and the ground color of the photographic paper piece is white. 4. A photographic paper portion corresponding to an image portion of a retouched portion is removed from a proofing character mount obtained by pasting a photographic paper having a developed image on a backing sheet so as to retouch the image portion of the retouched portion. The modifying photographic paper to be attached to the removed portion, wherein the modifying photographic paper has a ground color, and the ground color should be formed by exposing and developing the image in the next step. A photographic paper for correcting a character mount for proofreading, which has a color sensitivity to a photosensitive film and is different from the ground color of the photographic paper having the developed image. 5. The photographic paper for modifying a proofing character mount according to claim 4, wherein the ground color of the photographic paper is white when the ground color of the photographic paper is white. 6. A photographic paper for modifying a proofing character mount according to claim 4, wherein the ground color is white when the ground color of the photographic paper is blue.