JPS5924508Y2 - Dial for phototypesetting machine - Google Patents

Description

[Detailed description of the invention] The purpose of this invention is to provide a dial that can easily and quickly create text on headings for newspapers, etc. using a phototypesetting machine. It is something.

The heading bag characters used in newspapers, etc., have a white or black border around the regular characters (standard characters), and a ground pattern is applied around that.
The current method of creating the original version of the header characters, which are made up of these various bracket characters, is to first phototype the regular characters on the dial of a phototypesetting machine onto film. , this is developed to create a positive film, and then contact printing is performed on another film using a printer or the like to create a negative film.

This is placed on a turntable, and a transparent film or transparent glass is placed between the two negative and positive films to create a gap. An unexposed film is placed at the bottom of the film, and the light is irradiated from above while gently rotating the film.

In this way, a film with bordered bag letters is created, but the bag letter film and tint block film are then superimposed and contact-printed onto an unexposed film to create an original plate of bag letters with a tint pattern. There are many steps, and it is very troublesome as it requires a lot of effort and time.

Another method is to place thicker characters that are a certain amount thicker than the regular characters on the dial and phototypeset the regular characters and the thick characters separately to create bag characters (Special Publications Publication No. 37-777).
However, it is very inconvenient as it takes a lot of work and time to create the heading bag characters.

However, when using the dial of this invention, it is only necessary to load an unexposed film and a tint filter with a mid-density tint pattern into the magazine in close contact with the emulsion side and the film side, and it is possible to print a bag with bordered letters etc. with a tint pattern. Characters can be easily and quickly created by phototypesetting only once.

If I explain the drawing below, 1 is a character with even the letters transparent.

2 is the border of this character, and the border 2 has an opacity density of 5.0.

3 is an intermediate density of 0.0 for the ground excluding letters 1 and border 2.
Form into 7.

The above-mentioned dial is produced by printing a pre-prepared positive original onto a glass substrate 4 or film surface coated with a photosensitive material, developing, stopping, fixing, washing, and drying it to form a negative image on the substrate 4 or film surface. The film surface is covered with a protective glass 5 or coated with a substance such as a transparent synthetic resin to protect the film surface and ensure safe handling.

It goes without saying that this character 1 can be used regardless of whether it is a kanji character, a kana character, a European character, a number, a symbol, or the like.

The dial according to this invention is loaded into the dial frame and phototypested using the normal printing method when creating the bag letters, but in this case, the orthofilm 6
If you load it with the emulsion side facing the light-receiving part and phototypeset using this dial, you can create a latent image as shown in Figure 3A.

In addition, as shown in Fig. 5, in front of the film 6, the film surface of a tint block filter 7 (opening in Fig. 3), which has an intermediate density that does not interfere with the image of the character 1, is closely attached to the emulsion surface of the film 6. When placed one on top of the other, the light passing through the transparent letters 1 of the dial is exposed to the film 6, while the opaque border 2 is not exposed to the film 6.

In addition, the light whose amount is somewhat cut off at the intermediate density of the ground pattern 3 is filtered by the ground pattern filter 7, so the light that reaches the ground pattern at the middle density is further blocked and is not exposed to the film 6. On the other hand, only the transparent portions of the tint block filter 7 pass through the light and are exposed to the film 6.

Therefore, when this film 6 is developed, the part where the character 1 of the dial is imaged becomes black, as shown in Fig. 3C.
The portion corresponding to the border 2 is transparent, and a positive film with a tint pattern around it is obtained.

In this case, if you use duplicate film (film that changes from negative to negative and positive to positive) in advance,
Of course, a negative film can be obtained.

This idea is based on the fact that, as described above, the transparent characters 1 on the phototypesetting dial are provided with the border 2 with an opaque density (density 5.0), and the other markings 3 are formed with an intermediate density (density 0.7). , by using this dial, one film 6
Not only can a regular character and a border that matches the regular character be obtained by printing once, but if a tint block filter 7 having a mid-density tint pattern is superimposed on the film 6 and printing is performed, a tint block pattern can be printed in a single photosetting process. This allows you to quickly create border characters for use in various headings, etc. without the complicated steps required in the past. It is extremely advantageous for newspaper printing, etc., where time is a constraint, as it can be significantly shorter than conventional methods.

[Brief explanation of the drawing]

FIG. 1 is an enlarged plan view showing one character on the index bag character dial used in the phototypesetting machine according to the invention. FIG. 2 is an enlarged side view taken along line A--A in FIG. FIG. 3 is an explanatory diagram showing the printing state. FIG. 4 is a schematic diagram of the optical system. FIG. 5 is a schematic diagram illustrating the exposure state. 1... Transparent characters, 2... Opaque density border, 3... Even background, 4... Glass or film of substrate, 5... ...protective glass,
6...Film, 7...Medium density background pattern filter

Claims (1)

[Scope of utility model registration request] A positive original plate prepared in advance is coated with a photosensitive material so that a border 2 with an opaque density is applied to a transparent character 1 in which even the letters are transparent, and a background 3 excluding the transparent character 1 and the border 2 has an intermediate density. A dial for index bag letters used in a phototypesetting machine is formed in a negative form on the substrate 4 or film surface by contact printing on the coated glass substrate 4 or film surface, developing, stopping, fixing, washing, and drying.