JPS5983657A - Printing method - Google Patents

Abstract

PURPOSE:To make it possible to obtain high printing quality by the extrusion of ink and to enable color printing, by a method wherein perforations are formed to a light impervious film by electric discharge while the perforated film is superposed to a heat meltable film and the heat meltable film is perforated by irradiating both films with heat rays to be superposed to an object to be printed. CONSTITUTION:Perforations 3a are provided to a light impervious film 3 by discharging a mask 1 according to an electric signal. In the next step, when the mask 1 is superposed to a heat meltable film 6 so as to direct the side of the light impervious film 3 upwardly and the mask 1 is irradiated with heat rays 8 from above, the heat meltable film 6 absorbs heat rays 8 passing the perforations at the positions corresponding to the perforations of said light impervious film. The absorbed parts are melted by heating to form perforations 6a corresponding to the perforations 3a of the light impervious film 3 to form a mask 7. Subseuquently, when the mask 7 is superposed onto an object 9 to be printed and an ink roller 10 is tumbled on the mask 7, the ink is extruded through the perforations 6a and the object 9 to be printed with the ink 11.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a printing method that can immediately turn a signal into printed matter in a printer (printing, ta) used as an output for office automation, etc. be.

Conventional configuration and its problems In recent years, office automation using computers has become popular. In office automation, printers (printing machines) are indispensable for output.For example, printing functions such as printing calculation results, or creating and printing e-text using a word processor and printing them out as letters are indispensable. It is something. Several methods of printing, especially methods of immediately converting electrical signals into printed matter, are currently in practical use. For example, laser printers, wire dot printers, inkjet printers, thermal printers, discharge breakdown printers, etc. are used depending on the purpose. ing.

However, these printers did not necessarily meet the demands, and had disadvantages such as the print quality was inferior to that of type, and color printing could only be made in a limited number of colors.

A first aspect of the present invention is to solve the above-mentioned conventional drawbacks, and an object thereof is to provide a printing method that can obtain high print quality and can perform full-color J printing.

Structure of the Invention In order to achieve the above-mentioned object, the printing method of the present invention includes making holes in a light-shielding film by electric discharge or energization, stacking the light-shielding film on a heat-melting film, and irradiating heat rays from the light-shielding film side. A hole is made in the heat-fusible film by the hot wire passing through the hole, the heat-fusible film is placed on the printing material, and the ink is extruded through the hole in the heat-fusible film, thereby printing on the printing material, High resolution and precise holes can be made in the light-shielding film and thermofusible film, resulting in high print quality.Also, all colors of ink can be used, and full-color printing is possible by using subtractive color mixing. It becomes possible.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the steps of the printing method. In FIG. 1(a), (1) is a first mask, which is composed of a transparent sheet (2) and a light-shielding film (3) provided on this sheet (2). Note that this first mask (1) can be made by using, for example, a transparent plastic sheet as the transparent sheet (2) and forming an aluminum vapor-deposited film on the transparent plastic sheet (2) as the light-shielding film (3). I can do it.

This first mask (1) is wired together with an electric signal source (4) and an electrode needle (5) as shown in the figure, and a discharge or current is applied according to the 'rd message' 7 to make holes in the light-shielding film (3). (8a
) open.

Next, as shown in Fig. 1 1), the first mask (1) is placed on the heat-fusible film (6) with the light-shielding film (3) side facing upward, and the first mask (1) When the heat rays (8) are irradiated from above, the heat-fusible film (6) absorbs the heat rays (8) that have passed through the holes (8a) at positions corresponding to the holes (8a) of the light-shielding film (3). , that part is heated and melted, and holes (6a) corresponding to the holes (8a) of the light-shielding film (3) are created. In this way, the second mask (7) is made. Here, thermally fusible means that it is destroyed by heat to form holes, and includes not only melted cJ but also burnout. , λ, as shown in 11Δ(c), +Ja
Lay the second mask (υ) on the printing material (9) and roll it onto the mask (7), and the ink of the ink roller Q (-) will pass through the holes ( 6a)
The ink θυ is printed on -L of the printing medium (9) as shown in FIG. 1 ((1)).

In the printing method explained above, ′! Mask of η1 (υ
The technique related to the step ((a) of FIG. 1) of making 2η holes (8a) in the light-sensitive film (3) is a technique conventionally known as discharge recording paper, dot/m
It is possible to make holes with a high resolution of m, and the light-shielding film (often called the destructive layer in 1D recording paper) is usually made of a vapor-deposited aluminum film.

The holes (6) are formed in the thermofusible film (6) as the second mask (2).
In the step of opening a) (Fig. 1(b)), it is better for the heat-melting film (6) to absorb as much of the heat rays (8) as possible, and to avoid heat-melting plastics (e.g. polyethylene).
.

It is preferable to mix black dye or pigment (for example, carbon) into the material. In this way, the second mask (7) can be made with a reduced amount of heat rays (8). Furthermore, although the thermofusible film (6) serving as the second mask (7) was depicted and explained as having a supporting force by itself,
In order to perform more precise printing, it is better that the thickness of the heat-melting film (6) is as thin as possible, and it is better to be as thin as possible considering the star of the hot wire (8) necessary to make the hole (6a). . Second
The figure shows another heat-fusible film Q4 made from such a point of view, which is formed by pasting a heat-fusible film on mesh Q4. (b)
In the process, a hot ray (8) is irradiated from the membrane a1 side to make holes, and then, in the process shown in FIG. 1C, ink 00 is applied from the mesh rs side by the ink roller 01 to print. Next, a more precise hole (6a) is drilled in a hot wire (8) generated by a flash than a continuous one. In Figure 1 (b), the first mask (1) has the light-shielding film (3) side facing up, but the lower face, that is, the light-shielding gonad (3) side, is in close contact with the PA fusible film (6). Of course, it is possible to do this, and by doing so, a more precise hole (6a) can be made.

Various types of ink Qv can be used,
For example, it may be U fat mixed with dye, or
It may contain pigments, and it is also possible to add viscosity modifiers and activators to improve the properties of the ink and improve the printing finish.

Of course, any color can be used. Further, by performing the steps shown in FIGS. 1(a) to 1(d) four times and using subtractive color mixing, full color is also possible.

Effects of Investigation As described above, according to the present invention, 'i'i
A hole is immediately made in the light-shielding film according to the air signal, a hole is made in the heat-fusible film using the light-shielding film and the heat rays, and ink is extruded through the hole in the heat-fusible film for printing, resulting in high-resolution printing. It is possible to make a precise hole, and the character crystal trade is 1.
It is also possible to print in color. Furthermore, since the resolution is high, halftones can be easily expressed.

[Brief explanation of the drawing]

FIG. 1 is a process diagram showing one embodiment of the rectangular body of the present invention, and FIG. 2 is a sectional view showing another embodiment of the heat-fusible film. (1)...first mask, (2)...transparent sheet,
GO... Light shielding film, (8a) (6a)... Hole, (4
]... Electric signal source, (5) - Electrode needle, (6) (6
)...Thermofusible film, (7)...Second mask, (8
〉... Heat wire, (9)... Printing material, (11... Ink roller, 0 (1)... Ink. Agent Yoshihiro Morimoto

Claims (1)

[Claims] 1. A hole is made in the light-shielding film by electric discharge or energization, this light-shielding film is stacked on a heat-melting film, and a heat ray is irradiated from the light-shielding film side, and the heat rays passing through the hole generate heat. A printing method in which a hole is made in a fusible film, this heat-fusible film is placed on a printing material, and ink is extruded through the hole in the heat-fusible film to print on the printing material. 2. The printing method according to claim 1, wherein the light-shielding property is an aluminum vapor-deposited film formed on a transparent plastic sheet. 3. The printing method according to claim 1 or 2, wherein the heat-fusible film contains a dye or pigment for absorbing heat rays. 4. The printing method according to any one of claims 1 to 3, wherein the heat rays are generated by flash.