JPH0781036A - Printer - Google Patents

Abstract

PURPOSE:To provide a printer capable of performing sharp printing even to a material to be printed, which is transferred at a high speed. CONSTITUTION:A printer 10 includes a thermal head 24 as a removing means. In a heat-sensitive transfer material 14 which has a heat-sensitive transfer agent layer formed on one main surface of a belt-like support material thereof, the thermal head 24 thermally transfers an unnecessary portion of the heat-sensitive transfer agent layer to remove it and leaves a necessary portion of the heat- sensitive transfer agent layer on the support material. Further, the printer 10 includes a transfer roller 36 as a transferring means. This transfer roller 36 is used for transferring the necessary portion of the heat-sensitive transfer agent layer left on the support material onto a packaging film 100, which is a material to be printed, by methods of heating and pressing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing device, and more particularly to printing an indication such as the date of manufacture and the expiration date on a material to be printed such as a packaging film for packaging confectionery and bread. Printing device.

[0002]

2. Description of the Related Art Conventionally, in order to print the date of manufacture and the expiration date on the packaging film for packaging confectionery and bread, a part of the heat-sensitive transfer material corresponding to the date of manufacture and the expiration date is thermally transferred. Thermally transferred to the packaging film by the head.

[0003]

However, in the above-mentioned conventional technique, in order to clearly and thermally transfer a part of the thermal transfer material with the thermal head, the thermal transfer material is transferred to the thermal head at a slow speed of, for example, 10 cm / sec. Be transferred. In order to prevent uneven transfer of the heat-sensitive transfer material to the packaging film, the packaging film is also transferred at the same speed as the transfer speed of the heat-sensitive transfer material, that is, a slow speed of, for example, 10 cm / sec. That is, in the above-mentioned conventional technique, the manufacturing date and the expiration date cannot be clearly printed on the packaging film which is transferred at a fast speed that the thermal head cannot handle.

Therefore, a main object of the present invention is to provide a printing device capable of clearly printing on a printing material which is being transported at a high speed.

[0005]

DISCLOSURE OF THE INVENTION The present invention is for removing an unnecessary portion of a heat-sensitive transfer agent layer from a support material in a heat-sensitive transfer material having a heat-sensitive transfer agent layer formed on one main surface of a belt-shaped support material. The printing apparatus includes a removing unit and a transfer unit for transferring a necessary portion of the heat-sensitive transfer agent layer remaining on the support material to the print target material by heating and pressing.

[0006]

The removing means removes unnecessary portions of the heat-sensitive transfer agent layer of the heat-sensitive transfer material from the support material and leaves necessary portions of the heat-sensitive transfer agent layer on the support material. The necessary portion of the heat-sensitive transfer agent layer left on the support material is transferred to the printing material by being heated and pressed by the transfer means.

[0007]

According to the present invention, the necessary portion of the heat-sensitive transfer agent layer remaining on the support material is heated and pressed by the material to be transferred, so that the material to be printed is transported at a high speed. However, the necessary portion of the heat-sensitive transfer agent layer can be clearly transferred to the printing material. Therefore, it is possible to clearly print on the printing material that is being transported at a high speed.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0009]

1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a side view thereof. The printing device 10 includes a holding roller 12. The holding roller 12 is for holding the belt-shaped heat-sensitive transfer material 14 in a roll shape.

As shown in FIG. 3, the heat-sensitive transfer material 14 includes a belt-shaped support material 16 made of, for example, a synthetic resin film. A heat-sensitive transfer agent layer 18 made of a heat-sensitive transfer agent is formed on one main surface of the support material 16.

As shown in FIGS. 1 and 2, another holding roller 20 is provided near the holding roller 12. The holding roller 20 is for holding a belt-shaped tape 22 made of, for example, paper in a roll shape.

Next to the holding roller 12, a thermal head 24 is provided as a removing means. The thermal head 24 is for thermally transferring an unnecessary portion of the heat-sensitive transfer agent layer 18 of the heat-sensitive transfer material 14 from the support material 16 to the tape 22 and leaving a necessary portion of the heat-sensitive transfer agent layer 18 on the support material 16. Is.

Further, a platen roller 26 as a first transfer means is provided so as to face the thermal head 24. The platen roller 26 is used for the thermal transfer material 14
And the tape 22 are laminated, the thermal head 2
4 is for transferring at a slow speed of, for example, 10 cm / sec. Therefore, the platen roller 26 is connected to a motor (not shown) and is urged toward the thermal head 24. The thermal head 24
The heat-sensitive transfer agent layer 18 is provided between the platen roller 26 and the platen roller 26.
The heat-sensitive transfer material 14 and the tape 22 are inserted in a laminated state so as to face the tape 22.

A take-up roller 28 is provided above the platen roller 26. The take-up roller 28 is
A tape 2 on which an unnecessary portion of the thermal transfer agent layer 18 is thermally transferred
It is for winding 2 into a roll.

Further, in the vicinity of the winding roller 28,
A movable roller 30 is provided as a bending prevention unit. The movable roller 30 is for urging the heat-sensitive transfer material 14 upward to prevent the heat-sensitive transfer material 14 from bending. Therefore, the movable roller 30 is provided so as to be vertically displaceable,
And it is urged upward.

A guide roller 3 is provided below the movable roller 30.
2 is provided, and another guide roller 34 is provided below the guide roller 32. These guide rollers 3
Reference numerals 2 and 34 serve to guide the heat-sensitive transfer material 14 so that the heat-sensitive transfer agent layer 18 of the heat-sensitive transfer material 14 faces the strip-shaped packaging film 100 as the material to be printed.

The packaging film 100 is held in a roll by the holding roller 102, guided between the holding rollers 32 and 34 by the guide rollers 104 and 106, and is intermittently fed via the guide roller 106. The bread 108 is transferred to an automatic wrapping machine 110 for wrapping the wrapping film 100 with a wrapping film 100 at a fast speed of, for example, 100 cm / sec.

Further, between the guide rollers 32 and 34, a transfer roller 36 and a platen roller 38 which also serve as a second transfer means and a transfer means are provided so as to face each other. These transfer roller 36 and platen roller 3
8 intermittently transfers the heat-sensitive transfer material 14 at the same speed as the transfer speed of the packaging film 100, and intermittently transfers a necessary portion of the heat-sensitive transfer agent layer 18 of the heat-sensitive transfer material 14 to the packaging film 100. It is for heating and pressing and transferring. Therefore, the transfer roller 36 has, for example, a pressing portion 36a having a fan-shaped cross section, is connected to a motor (not shown), and is entirely heated by a heater (not shown). The thermal transfer material 14 and the packaging film 100 are inserted between the transfer roller 36 and the platen roller 38. Then, when the thermal transfer material 14 and the packaging film 100 are sandwiched by the pressing portion 36a of the transfer roller 36 and the platen roller 38, the thermal transfer material 1
4 is transferred at the same speed as the packaging film 100, and the necessary portion of the heat-sensitive transfer agent layer 18 is the packaging film 1.
Is transferred to 00.

A take-up roller 40 is provided near the guide roller 34. The take-up roller 40 is for taking up the heat-sensitive transfer material 14 in a roll shape.

In the printing apparatus 10, the thermal transfer agent layer 18 of the thermal transfer material 14 is first moved by the thermal head 24.
Unnecessary portions of the heat transfer agent layer 18 are thermally transferred from the support material 16 to the tape 22, and the necessary portions of the heat-sensitive transfer agent layer 18 are left on the support material 16. In this case, in this embodiment, for example, as shown in FIG. 4, a portion of the heat-sensitive transfer agent layer 18 in which a plurality of the same manufacturing dates (93.5.25) are mirror images is the support material 16.
The support member 1 is spaced at intervals of, for example, 2 cm in the longitudinal direction of the
Left in 6. Further, in this case, the thermal transfer material 14 and the tape 22 are transferred by the platen roller 26 at a slow speed of 10 cm / sec, which the thermal head 24 can handle. Therefore, in 1 second, the thermal transfer agent layer 1
A mirror image of 5 of the same manufacturing date (93.5.25) out of 8 is clearly left on the support 16.

Then, the tape 22 to which the unnecessary portion of the heat-sensitive transfer agent layer 18 has been thermally transferred is wound into a roll by the winding roller 28.

Further, the heat-sensitive transfer material 14 in which a necessary portion of the heat-sensitive transfer agent layer 18 is left is introduced between the guide rollers 32 and 34 via the movable roller 30.

Between the guide rollers 32 and 34, the thermal transfer material 14 is intermittently transported by the transfer roller 36 and the platen roller 38, and the thermal transfer agent layer 1
The required portion of 8 is intermittently heated and pressed and transferred to the packaging film 100. Specifically, the thermal transfer material 14 has the same transfer speed of the packaging film 100 as 10
After being transferred for 0.02 seconds at a high speed of 0 cm / second, it is stopped for 0.18 seconds, and this transfer and stop are repeated. Further, during one transfer of the heat-sensitive transfer material 14, one manufacturing date of the heat-sensitive transfer agent layer 18 (93.5.25).
The portion obtained by forming a mirror image is transferred to the packaging film 100 by being heated and pressed. In this case, a necessary portion of the heat-sensitive transfer agent layer 18 is heated and pressed on the packaging film 100 to be transferred, so that the packaging film 100 being transported at a fast speed of 100 cm / sec is manufactured. Can be printed clearly.

When viewed in a minute time, the transfer distance of the heat-sensitive transfer material 14 by the platen roller 26 and the transfer roller 3
6 and the transfer distance of the heat-sensitive transfer material 14 by the platen roller 38, but the difference is absorbed by the movable roller 30. Further, the difference is absorbed by the expansion and contraction of the heat-sensitive transfer material 14 without the movable roller 30 as long as the heat-sensitive transfer material 14 has elasticity.

In the above-described embodiment, the thermal head 24 leaves a portion corresponding to the manufacturing date as a necessary portion of the heat-sensitive transfer agent layer 18 on the support material 16. However, for example, as shown in FIG. As a necessary portion of the thermal transfer agent layer 18, a portion corresponding to the manufacturing date and the expiration date is provided as the support material 16.
May be left, and other parts may be left.

Further, in the above-described embodiment, the transfer speed of the heat-sensitive transfer material 14 by the platen roller 26 is 10 cm / sec, but this speed may be changed within a speed range that the thermal head 24 can handle. Further, the transfer speed of the thermal transfer material 14 by the transfer roller 36 and the platen roller 38 may be changed to a speed close to the transfer speed of the packaging film 100.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

2 is a side view of the embodiment shown in FIG. 1. FIG.

FIG. 3 is a perspective view showing a heat-sensitive transfer material used in the examples shown in FIGS. 1 and 2.

FIG. 4 is a perspective view showing an example of a state in which an unnecessary portion of the heat-sensitive transfer agent layer is removed from the heat-sensitive transfer material shown in FIG.

FIG. 5 is a plan view showing another example of a state in which an unnecessary portion of the heat-sensitive transfer agent layer is removed from the heat-sensitive transfer material.

[Explanation of symbols]

 10 Printing Device 12 Holding Roller 14 Thermal Transfer Material 16 Support Material 18 Thermal Transfer Agent Layer 20 Holding Roller 22 Tape 24 Thermal Head 26 Platen Roller 28 Winding Roller 30 Movable Roller 32 Guide Roller 34 Guide Roller 36 Transfer Roller 36a Pressing Section 38 Platen Roller 40 Winding roller 100 Packaging film 102 Holding roller 104 Guide roller 106 Guide roller 108 Bread 110 Automatic packaging machine

Claims (3)

[Claims] 1. A removing means for removing an unnecessary portion of the heat-sensitive transfer agent layer from the support material in the heat-sensitive transfer material in which a heat-sensitive transfer agent layer is formed on one main surface of a belt-shaped support material, and the support. A printing apparatus comprising a transfer means for heating and pressing a necessary portion of the heat-sensitive transfer agent layer remaining on the material to the material to be printed to transfer the material. 2. The removing means includes a thermal head,
The printing device according to claim 1. 3. The printer according to claim 1, wherein the transfer unit includes a transfer roller having a pressing portion having a fan-shaped cross section.