JPH10258969A - Bobbin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate printing on a bobbin and facilitate the maintenance of a printing mechanism by printing on the bobbin for winding up a transcribing sheet or an image receiving sheet by a laser. SOLUTION: For example, a bar code 2 is printed on a curved face part on the surface of a bobbin 1 by a laser, a lot number is printed on the curved face part on the surface of the bobbin 1, or a lot number is printed in a hollow part inner face of the bobbin 1. A timing in printing on the bobbin by the laser is preferable to be at the same time of winding up a transcribing sheet or an image receiving sheet and it is preferable to print on the cassette case in a type using a cassette case for storing the bobbin. This constitution can facilitate printing on the bobbin having no flat part and also facilitate the maintenance of the printing mechanism. This can also facilitate the printing on parts, which are hard to be printed by an ink jet, such as a curved part and a bobbin inside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin for winding a transfer sheet or an image receiving sheet used for sublimation transfer or thermal transfer.

[0002]

2. Description of the Related Art Conventionally, in order to facilitate the management of this kind of bobbin, a sticker printed with a lot number or a logo mark at the time of manufacturing is attached to an outer surface, or a lot number or a logo mark is printed by an ink jet method. That is being done.

[0003]

However, the bobbin does not have a flat portion and the sticking of the seal involves a troublesome operation, so that it is not efficient. On the other hand, although the ink jet method is a simple method, when used to some extent, nozzles are clogged and printing cannot be performed, so that there is a disadvantage that maintenance of the nozzles is required and work efficiency is poor. By the way, the above-mentioned bobbin and the cassette case for accommodating the bobbin are products of many types and small lots in order to correspond to many different types of printers which vary from company to company. Therefore, in order to quickly respond to various demands of a delivery destination, there has been a situation in which an ink jet system with low work efficiency cannot be fully satisfied. In addition, in the ink jet system, printing on a curved surface portion or printing on the inner surface of a bobbin is impossible, so that there is also a problem that printing places are limited. Further, since the ink used varies depending on the type of the transfer sheet and the image receiving sheet, the type of ink is large, the storage space for the ink is required, and the use of the ink tends to be erroneous.
Another problem is that the ink is expensive and the running cost is high.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention makes it possible to easily perform printing on a bobbin and to easily perform maintenance of a printing mechanism. That is, the present invention is a bobbin for winding up a transfer sheet or an image receiving sheet, wherein the bobbin is printed with a laser, and the inner surface is printed with a laser. Can also.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The bobbin of the present invention is produced by a method such as injection molding using a resin material such as polystyrene, ABS, polyethylene, polypropylene, polyvinyl chloride, polyacetal, and polycarbonate. Then, the thus produced product is printed by laser.

The laser used in the present invention may be any laser capable of recording, such as an argon laser, a helium-neon laser, a semiconductor laser, a YAG laser, a carbon dioxide laser, and a ruby laser. It is particularly preferably used because it can be focused on a minute spot and can be recorded for a short time.

[0007] YAG laser, carbon dioxide gas laser, ruby laser and the like have a wavelength in the infrared region, and therefore themselves act as heat rays, so no special treatment is required.
When the wavelength range is from visible to near-infrared, such as argon laser, helium-neon laser, and semiconductor laser, add a light absorbing material corresponding to the wavelength to the plastic material, or absorb the light after molding. Dipping or spray-coating with a solution containing the material, or by ordinary gravure, offset, flexo,
Recording can be performed by partial coating with a screen, blade, spray coating, or the like.

The portion irradiated with the laser beam is locally heated, and the recording is performed by blowing off the portion when the liquid phase is in a state of exceeding the melting point. In this case, the unevenness processing recording is basically performed. However, depending on the plastic material itself constituting the cassette case and the bobbin, or the pigment, dye, additive, etc. mixed in these materials, the composition and the crystal are formed by heating the laser. A discoloration effect due to a change in the structure, molecular structure, or the like may be obtained, and such recording is visually advantageous and is preferable.

The characters added to the transfer sheet bobbin include the transfer sheet lot number, the type of transfer sheet, the type of image receiving sheet used in combination, the precautions when installing the printer, the top and bottom of the cassette, the logo mark, and the like. No. Alternatively, a bar code having such information may be used.

The characters given to the image receiving sheet bobbin include the lot number of the image receiving sheet, the type of the image receiving sheet, the type of the transfer sheet used in combination, the precautions when installing the printer, the logo mark, and the like. Alternatively, a bar code having such information may be used.

As shown in FIG. 1, one example of a laser processing apparatus is a laser head 11 and a processing optical system (lens).
A workpiece A is installed in a horizontal direction (within the XY plane).
Table 14 for moving the laser head 11 and the processing optical system (lens) 12 in the vertical direction (Z-axis direction), the movement of the XY table 14 in the horizontal plane, and the vertical direction of the Z table 15 The main controller 16 automatically or manually controls the moving operation of the laser beam and the oscillation operation of the laser oscillator.

In the case of a laser, since the irradiation place can be freely controlled basically by an optical system, printing can be performed at an arbitrary place by combining a mirror, a condenser lens and the like. That is, it is possible to print not only on the flat portion of the cassette case and the bobbin, but also on the curved surface portion and the uneven portion, and furthermore, it is possible to easily perform the printing on the inner surface of the hollow portion of the bobbin. In addition, printing can be performed on a portion having a small area, such as a protruding portion or a bobbin end surface. For example, FIG. 2 shows an example in which a bar code 2 is printed on a curved surface portion of the bobbin 1, FIG. 3 shows an example in which a lot number 3 is printed on a curved surface portion of the bobbin 1, and FIG. This is an example in which lot number 4 is printed on the inner surface of the hollow portion.

The timing of printing a laser beam on the bobbin is preferably the same as the time when the transfer sheet or the image receiving sheet is wound around the bobbin. In the case of using a cassette case for storing a bobbin, it is preferable to perform printing on the cassette case. In this case, if laser printing is performed on the same line, mistakes such as a lot number and a bar code can be prevented. be able to.

[0014]

EXAMPLE A bobbin as shown in FIG. 2 was made of high-impact polystyrene, and a bar code indicating the type of transfer sheet was printed with a laser. For printing, a YAG laser (1000 W, irradiation time 0.2 ms) was used.
The color of the bobbin was light gray, but the bar code portion turned dark gray, so that it could be read by a bar code reader.

For comparison, when a bar code was printed by ink jet on the same bobbin as the embodiment,
When about 0 prints were made, the nozzles were clogged, and defective prints occurred. It took about 30 minutes to clear the nozzle clogging and start printing again. In addition, there were some inks that had bleed and could not be read by a bar code reader.

[0016]

As described above, according to the present invention,
Since printing is performed by laser, printing on a bobbin having no flat portion can be easily performed, and maintenance of the printing mechanism becomes easy. In addition, printing can be easily performed on a portion that is difficult to print with the ink jet, such as a curved surface portion or an inner surface of a bobbin. In addition, since the characters are not disordered, the formed lot number, logo mark, and the like are easy to see, and no defective printing occurs.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating an example of a laser processing apparatus.

FIG. 2 is a perspective view showing an example in which a bar code is printed on a curved portion of the surface of the bobbin.

FIG. 3 is a perspective view showing an example in which a lot number is printed on a curved portion on the surface of a bobbin.

FIG. 4 is a perspective view showing an example in which a lot number is printed on the inner surface of a hollow portion of a bobbin.

[Explanation of symbols]

 1 bobbin 2 bar code 3 lot number 4 lot number 11 laser head 12 optical system 13 laser power supply 14 XY table 15 Z table 16 main controller

Claims (2)

[Claims] 1. A bobbin for winding a transfer sheet or an image receiving sheet, wherein the bobbin has been printed by a laser. 2. The bobbin according to claim 1, wherein the inner surface is printed with a laser.