JPH09272193A - Preparation of film for printing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce with a small installation and simply a film for printing in a method for preparing the film for printing. SOLUTION: An adhering face 17 of a ribbon 7 for peeling a coating with an adhesive face 17 exhibiting sticking properties by heating is brought into contact with the coating face 14a of a transfer foil film 8 wherein a thermoplastic coating layer 14 is formed on one face of a transparent film main body 9. The heat applying part 3 of a heat printer head 2 is brought into contact with another face 18 of the ribbon 7 for peeling the coating. The heat applying part 3 of the heat printer head 2 is controlled by an electron control means to generate heat and the thermoplastic coating layer 14 is transferred only at the sites heated by means of the heat applying part 3 in the adhesive face 17 of the ribbon 7 for peeling the coating to form transparent parts 10 where the thermoplastic coating layer 14 is peeled on the transfer foil film 8.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for producing a printing film.

[0002]

2. Description of the Related Art Conventionally, in the case of producing a negative film and a positive film for producing a block in the printing field,
After shooting the silver salt film with a camera, etc., develop, fix,
Photolithography, which carries out a drying process, has been common. Further, as a method other than photoengraving, the printing surface of the paper output by a printer that prints by printing carbon powder, the transfer foil film formed with a thermoplastic paint layer on one surface of the transparent film body, There has been a method of forming a transparent portion on a transfer foil film by superimposing and rolling a heated roller against the back side of the paper to transfer the thermoplastic paint layer only to the printed portion of the paper.

[0003]

However, in the above-mentioned photomechanical process, the number of working steps is large, so the platemaking is troublesome, and
Since many chemicals are used, it is difficult to dispose of the chemicals after use, which may cause pollution. In addition, devices such as cameras and equipment such as dark rooms are expensive.

Further, in the method of transferring the thermoplastic paint layer of the transfer foil film to the printing portion of the paper, it is not necessary to use chemicals, but a plurality of steps of pressing the heated roller after printing once on the paper are required. It was troublesome because it had to be used, and the equipment was relatively large.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a printing film which can be easily produced with a small facility and which is pollution-free.

[0006]

In order to achieve the above-mentioned object, a method for producing a printing film according to the present invention comprises a transparent foil body and a thermoplastic coating layer formed on one surface of the transfer foil film. , The adhesive surface of the paint stripping ribbon having an adhesive surface exhibiting adhesiveness by heating is brought into contact with the other surface of the paint stripping ribbon, and a heat applying portion of a thermal printer head is brought into contact with the adhesive surface. The thermal printer head is moved relative to the transfer foil film, and the heat applying portion of the thermal printer head is controlled by an electronic control unit to generate heat, and the heat is applied to the adhesive surface of the paint stripping ribbon. The thermoplastic paint layer of the transfer foil film is transferred only to the portion heated by the heat application part of the printer head to form a transparent part where the thermoplastic paint layer is peeled off on the transfer foil film.

Further, in the method for producing a printing film according to the present invention, the coating surface of the transfer foil film having the thermoplastic coating layer formed on one surface of the transparent film body has an adhesive surface which exhibits adhesiveness by heating. The adhesive surface of the paint stripping ribbon is brought into contact with the other surface of the paint stripping ribbon,
The heat applying section of the thermal printer head is brought into contact with the thermal printer head to run relative to the transfer foil film, and the heat applying section of the thermal printer head is controlled by the electronic control means to generate heat. Of the adhesive surface of the paint stripping ribbon, the thermoplastic paint layer of the transfer foil film is transferred only to a portion heated by the heat applying portion of the thermal printer head, and the thermoplastic paint layer is transferred to the transfer foil film. To form a peeled transparent part.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in detail based on the embodiments.

FIG. 4 shows an example of a printing film F formed by the method for producing a printing film according to the present invention, which is rectangular in a plan view as a whole and is transparent in the shape of characters or the like. .. and an opaque portion 11 forming the rest. Here, the printing film F is a transfer foil film 8 which will be described in detail later, on which transparent portions 10 are formed, and is used as a negative film or a positive film for producing a master block in the field of printing. used. Specific uses of the printing film F include, for example, printing such as offset printing, screen printing, pad printing, gravure printing, flexo printing, or the like, or production of a print substrate, a photosensitive resin relief printing plate, a stamp, or the like. To be

FIGS. 1, 2, and 3 are simplified diagrams for explaining the method for producing the printing film according to the present invention.
Is a printing film manufacturing apparatus used for the manufacturing method of this printing film. The printing film manufacturing apparatus 1 includes a thermal printer head 2 having a heat applying section 3 and an electronic control means 5 for controlling the operation of the heat applying section 3 of the thermal printer head 2.
And a ribbon cassette 4 that reciprocates integrally with the thermal printer head 2 in the directions of arrows A and B.

Here, the thermal printer head 2 is a printing head (thermal head) having a heat applying portion 3 capable of instantaneous heat generation, and is, for example, a thermal printer such as a personal computer or a word processor. Similar heads are used for (thermal transfer printer), facsimile, and the like.

The thermal printer head 2 includes a transfer foil film 8
On the other hand, it is possible to approach and separate from the film 8 when it approaches the film 8 when printing and returns to the printing start position and when the operation is stopped.

Further, as shown in FIG. 1, electronic control means 5
Is for controlling heat generation and non-heat generation of the heat applying section 3 of the thermal printer head 2 with high accuracy in real time on the basis of data such as characters, figures, images to be printed, and a computer such as a personal computer is used. It

The ribbon cassette 4 is provided with a case body 6 and a paint stripping ribbon 7 that is housed in the case body 6 and has an adhesive surface 17 that exhibits adhesiveness by heating. It is replaceably attached to a moving base (not shown) provided on the main body 1. The adhesive surface 17 of the ribbon 7 is formed by applying a hot-melt adhesive (hot melt adhesive) to the ribbon base.

The case body 6 of the ribbon cassette 4 has two
Two rotary shaft parts 12, 13 are formed, and the rotary shaft parts 12, 13 are formed.
Both ends of the long ribbon 7 are wound around. Further, the ribbon 7 is arranged so as to be in sliding contact with the heat applying portion 3 of the thermal printer head 2. Then, when the ribbon cassette 4 advances in the printing direction (direction of arrow A), the ribbon 7 is moved to the one shaft portion 12
Is wound around the other shaft portion 13 and is wound in the direction of returning to the print start position (direction of arrow B), the winding of the ribbon 7 is stopped.

Further, as shown in FIG. 2, the transfer foil film 8 includes a thermoplastic paint layer 14 on one surface of the transparent film body 9.
Is a film formed with, for example, an opaque thermoplastic paint applied to one surface of the film body 9 having a thickness of about 30 to 100 μm. The color of the thermoplastic paint layer 14 is, for example, black, but there are other colors. Examples of the color of the film body 9 include colorless and transparent, and transparent colors such as red, blue, and yellow.

The method for producing this printing film will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the thermal printer head 2 is brought close to the paint surface 14a of the transfer foil film 8 to transfer the film. The paint surface 14a of the foil film 8 is brought into contact with the adhesive surface 17 of the paint peeling ribbon 7, and the other surface 18 of the paint peeling ribbon 7 is brought into contact with the heat applying portion 3 of the thermal printer head 2.

Further, the ribbon cassette 4 and the thermal printer head 2 are moved in the direction of arrow A with respect to the transfer foil film 8, and the heat applying section 3 of the thermal printer head 2 is controlled by the electronic control means 5 to generate heat. As shown in FIGS. 2A and 2B, the thermoplastic paint layer 14 of the transfer foil film 8 is provided only on the part of the adhesive surface 17 of the paint stripping ribbon 7 which is heated by the heat applying part 3 of the thermal printer head 2. Is transferred to form a transparent portion 10 on the transfer foil film 8 from which the thermoplastic coating layer 14 is peeled off.

That is, the paint stripping ribbon 7 is applied in the heat applying section 3.
Since the thermoplastic paint layer 14 of the transfer foil film 8 and the transfer foil film 8 are heated, the adhesive surface 17 exhibits adhesiveness and the thermoplastic paint layer
14 melts, and the thermoplastic coating layer 14 fuses to the adhesive surface 17.

As described with reference to FIG. 1, the head 2
Since the paint stripping ribbon 7 is wound up from one rotary shaft portion 12 to the other rotary shaft portion 13 as the (and ribbon cassette 4) travels, the paint surface 14a of the transfer foil film 8 is always covered. The new adhesive surface 17 makes contact. Therefore, the thermoplastic paint layer 14 can be reliably transferred (fused) to the ribbon 7.

Further, as shown in FIG. 3, when the transfer foil film 8 is viewed in plan, the ribbon cassette 4 and the thermal printer head 2 are perpendicular to the feeding direction of the transfer foil film 8 (direction of arrow C). Drive in the direction of arrow A. Then, a large number of transparent portions 10 forming characters (or figures) are formed on the surface on which the thermal printer head 2 has passed.

Immediately after the thermal printer head 2 passes over the one edge 19 of the transfer foil film 8, the head 2 and the ribbon cassette 4 are stopped, and the head 2 is retracted from the transfer foil film 8. Then, the head 2 and the ribbon cassette 4 are returned to a position where the head 2 exceeds the other edge 20 of the film 8.

The head 2 is connected to the other edge 20 of the film 8.
Transfer foil film 8 before returning to the position beyond
It is sent out by a predetermined size in the direction indicated by arrow C. After that,
Again, the head 2 is brought close to the film 8 to form the transparent portion 10 in the same manner as described above. By repeating the above process, the printing film F as shown in FIG. 4 can be formed.

As described above, according to this printing film manufacturing method, the transfer foil film 8 is added to the printing film manufacturing apparatus.
A printing film can be automatically produced by simply setting and operating the printing film manufacturing apparatus. Further, since it is not necessary to use chemicals such as photoengraving, there is no risk of pollution, and steps such as photographic imaging and development can be omitted. Furthermore, the reproduction of characters and figures is superior to that using a silver salt film of photoengraving, and fine lines such as small letters can be reproduced with high accuracy. Further, the thermal printer can be used as it is, only by mounting the paint stripping ribbon 7 (ribbon cassette 4) on the thermal printer.

As the paint stripping ribbon 7, it is preferable to use a ribbon having an adhesive surface 21 which exhibits adhesiveness by heating, in addition to an adhesive surface 17 which exhibits adhesiveness by heating. (See FIGS. 1 and 2). Examples of the adhesive in that case include paraffin wax and polyethylene wax.

Further, in FIGS. 3 and 4, the transparent portion 10 and the opaque portion 11 of the printing film F are reversed, that is, the portion forming the character is the opaque portion and the remaining portion is the transparent portion. Do
── There are also cases.

It is also possible to fix the thermal printer head 2 and the ribbon cassette 4 and move the transfer foil film 8 in the direction perpendicular to the feeding direction. Further, as the thermal printer head 2, a long one may be used in addition to the small piece-shaped one as shown in the figure, and in this case, the width of the paint stripping ribbon 7 is set to the width of the head 2. It suffices to correspond to the length dimension.

[0028]

The present invention has the following remarkable effects by the above-mentioned structure.

By simply setting the transfer foil film 8 at a predetermined position, a printing film can be produced easily and automatically. Further, a high image quality corresponding to the output resolution of the thermal printer head 2 can be obtained, the reproducibility of characters and figures is excellent, and small characters and thin lines can be reproduced with high accuracy. In addition, the equipment can be made compact.

[Brief description of drawings]

FIG. 1 is a simplified explanatory view of a method for producing a printing film of the present invention.

FIG. 2 is an explanatory diagram of the operation of the main part.

FIG. 3 is an operation explanatory view.

FIG. 4 is a partially omitted plan view showing an example of a printing film.

[Explanation of symbols]

 2 Thermal printer head 3 Heat application part 5 Electronic control means 7 Paint stripping ribbon 8 Transfer foil film 9 Film body 10 Transparent part 14 Thermoplastic paint layer 14a Paint surface 17 Adhesive surface 18 Other surface 21 Adhesive surface

Claims (2)

[Claims] 1. A paint surface 14a of a transfer foil film 8 having a thermoplastic paint layer 14 formed on one surface of a transparent film body 9.
The adhesive surface 17 of the paint stripping ribbon 7 having an adhesive surface 17 that exhibits adhesiveness by heating is brought into contact with the other surface 18 and heat is applied to the other surface 18 of the paint stripping ribbon 7 by the thermal printer head 2. The thermal printer head 2 is moved relative to the transfer foil film 8 by bringing the parts 3 into contact with each other, and the heat applying part 3 of the thermal printer head 2 is controlled by the electronic control means 5 to generate heat. Bonding surface 17 of the paint stripping ribbon 7
Among these, the thermoplastic paint layer 14 of the transfer foil film 8 is transferred only to a portion heated by the heat applying portion 3 of the thermal printer head 2, and the thermoplastic paint layer 14 is peeled off from the transfer foil film 8. A method for producing a printing film, which comprises forming the transparent portion 10 described above. 2. A paint surface 14a of a transfer foil film 8 having a thermoplastic paint layer 14 formed on one surface of a transparent film body 9.
The adhesive surface 21 of the paint stripping ribbon 7 having an adhesive surface 21 that exhibits adhesiveness by heating, and heat is applied to the other surface 18 of the paint stripping ribbon 7 by the thermal printer head 2. The thermal printer head 2 is moved relative to the transfer foil film 8 by bringing the parts 3 into contact with each other, and the heat applying part 3 of the thermal printer head 2 is controlled by the electronic control means 5 to generate heat. Adhesive surface 21 of the paint stripping ribbon 7
Among these, the thermoplastic paint layer 14 of the transfer foil film 8 is transferred only to a portion heated by the heat applying portion 3 of the thermal printer head 2, and the thermoplastic paint layer 14 is peeled off from the transfer foil film 8. A method for producing a printing film, which comprises forming the transparent portion 10 described above.