JPS59214666A - Thermal transfer recorder - Google Patents

Abstract

PURPOSE:To obtain a thermal transfer recorder capable of printing and recording on the surface of a rigid object or an object with curved surface by using a system in which thermal transfer is made from a thermal transfer paper to an indirect transfer paper, and the indirect transfer paper is hot-pressingly contacted with the surface of an object to be recorded. CONSTITUTION:Under a condition that recording current signal is supplied to a thermal head 11, a thermal transfer paper 14 and an indirect transfer paper 18 are sent out, and the ink of thermal transfer paper 14 is melted by the heat of a recording part 11b and recorded on the indirect transfer paper 18. The paper 18 is pressingly contacted with an object 22 to be recorded while heaping a heating roller 21, and record of molten ink is transferred to the surface of the object 22 for printing.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal transfer recording device for recording characters, symbols, etc. on a recording medium having a hard metal plate or a curved surface, for example.

For example, as a means of recording characters, symbols, etc. corresponding to data processed by an information processing device such as a computer,
Using a thermal head 1. 2. Description of the Related Art A thermal transfer recording device is known. FIG. 1 shows the configuration of the recording section of such a recording device, and the recording section 11m of the thermal head 11 is set to be in pressure contact with the outer peripheral surface of a cylindrical platen 13 loaded with recording paper 12. . And this thermal head 1
Thermal transfer paper 14 is interposed between the recording section 11m of No. 1 and the recording paper 12 so that the surface coated with heat-melting ink is in contact with the surface of the recording paper 120.

That is, heat generated by the recording section 11b of the thermal head 11 melts the ink on the thermal transfer paper 14, and printing is performed on the recording paper 12 using this melted ink.

When performing such thermal transfer recording, the recording section 11m of the thermal head 11 and the thermal transfer paper 14 are connected to the recording paper 1.
2. It is necessary to establish contact with the material 2 with sufficient adhesion at a glance and with a constant pressure. Therefore, the recording paper 12
is guided to the recording section 11b by a grating 13, and the platen 13 is made of an elastic material such as rubber, and is configured to apply a constant pressure to the thermal head 11.

Therefore, in such a thermal transfer recording device, the recording medium is limited to a sheet-like material with a constant thickness and flexibility, and curved surfaces such as hard metal plates and cans cannot be used. It is not possible to perform thermal transfer recording on the surface of an object that has

This invention was made in view of the above points, and it is possible to perform printing on the surface of particularly hard objects or objects with curved surfaces, so that it can be effectively applied to, for example, goods and product management. The present invention aims to provide a thermal transfer recording device that provides the following advantages.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 shows its configuration, and the thermal head 11 is set so that its recording portion IIm is pressed against the surface of a roll platen 15 whose surface is made of an elastic material. And, between this roll platen 15 and the recording section 11a,
A thermal transfer paper 14 is interposed between the rolls 16 and 11, and an indirect transfer paper 18 is also interposed so as to be transferred in contact with the platen 15 surface. In this case, the indirect transfer paper 18 comes out from the row A/19, passes through the platen 15, and is wound up on the roll 201C.

Here, the thermal transfer paper 14 is made by coating a base material such as a polyester film or capacitor paper with a thermal ink of 16 ta, and the ink-applied surface is
The paper is set so as to be in contact with the surface of the paper, and is transported between the recording section JJa of the thermal head 11 and the roll platen 15 while being stacked on the indirect transfer paper 18 . In addition, the indirect transfer paper 18 is the same as the base material of the thermal transfer paper 140, or a sheet-shaped paper with good thermal conductivity is used.

Then, the indirect transfer paper 1 that has passed through 15 roll platens
8 is a heating roll 21 whose surface is made of an elastic material such as rubber.
The transfer material is heated and pressed onto the surface of the transfer object 22, such as an iron plate, for example. In this case, the recording surface of the transfer object 22 is fed by a feed roller 23 synchronously with the indirect transfer paper 18 .

That is, when the thermal transfer paper 14 and the indirect transfer paper 18 are transferred while a recording current signal is supplied to the thermal head 11, the ink on the thermal transfer paper 14 is melted by the heat generated by the recording section 11a of the thermal head 11. , recording is performed on the indirect transfer paper 18. In this case, the roll platen 1 is
5 is pressed at a specified constant pressure. Then, an indirect transfer paper 18 on which a transfer record is formed using heat-melting ink.
is brought into pressure contact with a recording medium 22 while being heated by a heating roller 21, and a record made of the heat-melting ink is transferred and printed on the surface of the recording medium 220.

In the above embodiment, the recording medium 22t is shown as a plate-shaped body, but when recording is performed on the surface of a cylindrical recording medium such as a can, the cylindrical recording medium is heated by a heating roller. It is sufficient to support it so that it rotates at the same circumferential speed as 21.

As described above, according to the present invention, the thermal head can reliably record on hard objects as well as objects with curved recording surfaces, and its range of applications is greatly expanded. .

Here, in normal thermal transfer, the amount of ink transferred is determined according to the amount of heat generated. However, in the above thermal transfer device,
When transferring from indirect transfer paper to a recording medium, the amount of ink on the indirect transfer paper is constantly increasing, so temperature control at the heating roller section becomes very easy. .

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating conventional thermal transfer, and FIG. 2 is a configuration diagram illustrating a thermal transfer apparatus according to an embodiment of the present invention. 11... Thermal head, Ilm... Recording section, 14
...Thermal transfer paper, 15...Roll platen, 18...
- Indirect transfer paper, 21...heating roller, 22...recording object, 23...feeding roller. Patent attorney Takeshi Suzue Pig box Figure 1 Figure 2

Claims (2)

[Claims] (1) A mechanism that stacks and transfers indirect transfer paper with thermal transfer paper coated with hot melt ink, a thermal head that thermally transfers recording from the surface of the thermal transfer paper sent by this mechanism to the indirect transfer paper, and this thermal head. A thermal transfer recording device characterized by comprising a heating and pressing mechanism for pressing the indirect transfer paper on which thermal transfer recording has been performed onto the surface of a recording medium. (2) Thermal transfer according to claim 1, wherein the indirect transfer paper is transported by a roller, and the indirect transfer paper subjected to thermal transfer is pressed against the surface of the recording medium by a pressure contact mechanism using an elastic heating roller. Recording device.