JPS6328794B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thermal transfer sheet adhesion device equipped with a device for printing transfer marks and the like on a thermal transfer sheet, in which a protective film is formed on one surface of a release sheet, and the protective film On the surface of the transfer adhesive layer of the thermal transfer sheet on which the transfer adhesive layer is formed, clearly printed characters are printed on the visible part where the protective film and the transparent part of the transfer adhesive layer overlap. It is an object of the present invention to provide a device that can transfer the transfer portion of the present transfer sheet onto a material to be adhered.

Hereinafter, the present invention will be explained in detail according to embodiments shown in the drawings.

1 and 2 are schematic explanatory diagrams of a thermal transfer sheet pasting device equipped with a printing device which is an embodiment of the present invention, and FIG. 3 is an example of a thermal transfer sheet pasted by the device. FIG.

First, before explaining the present apparatus, the above-mentioned thermal transfer sheet will be explained.

This thermal transfer sheet A is suitable for use as a label for displaying quality indications, trademarks, company names, etc. As shown in FIG. to form a protective film 2, and then print appropriate patterns, colors, etc. on the protective film 2 to form a printed film 3, and further coat a transparent transfer adhesive layer 4 on the printed film 3. It was formed. The release sheet 1 is a continuous long strip, and a transfer film is formed by laminating a protective film 2, a printing film 3, and a transfer adhesive layer 4 on the surface of the release sheet 1 at appropriate intervals. Section 5 is formed.

As the release sheet 1, a heat-resistant, flexible and strong paper, processed paper, or a sheet or film of a synthetic resin such as polyester, polyethylene, polypropylene, etc. is used. Protective film 2
is formed by thinly coating or printing a composition containing a natural or synthetic resin, or a modified product thereof, using a known coating or printing method, and drying it. The printing film 3 is a printing material made of a coloring agent such as a pigment or dye, a vehicle, a drying accelerator, etc., and is used in planographic printing such as offset printing, intaglio printing such as gravure printing, letterpress printing, and stencil printing such as silk screen printing. A desired pattern, color, etc. are formed using printing methods such as the above. The transfer adhesive layer 4 formed on the protective film 2 and the printed film 3 is formed by applying or printing a hot-melt type synthetic resin adhesive whose main component is a thermoplastic resin.

Therefore, the present apparatus related to the above-mentioned thermal transfer sheet will be explained.

In FIGS. 1 and 2, A is a thermal transfer sheet wound around a mounting reel 6 in the form of a roll.
7 is a printing device, and 8 is a pasting device that transfers the thermal transfer sheet A onto the material to be pasted B. The printing device 7 and the pasting device 8 operate synchronously as shown in FIG. Reference numeral 9 denotes a take-up reel for winding up the release sheet 1 peeled off from the transfer section 5 after being transferred by the pasting device 8 .

The thermal transfer sheet A wound around the mounting reel 6 is then taken up by a take-up reel 9 that rotates manually or automatically, and is sequentially drawn out to the printing device 7.

The printing device 7 includes a printed body 11 having characters engraved on the printing plate and a pressure plate 10 provided facing the printed body 11. The printed body 11 is formed on the surface of the transfer adhesive layer 4. Formation is performed so that reverse characters (so-called "mirror image characters") in which predetermined characters are reversed can be printed on the visible part where the protective film 2 of the transfer sheet A and the transparent part of the transfer adhesive layer 4 overlap. has been done.

Then, the thermal transfer sheet A is passed through the printing device 7 so that the release sheet 1 side of the thermal transfer sheet A is in contact with the upper surface of the pressure plate 10 of the printing device 7.
As shown in the figure and FIG. 4, predetermined inverted characters 12 are printed on the transfer adhesive layer 4 constituting the transparent portion of the thermal transfer sheet A. In addition, thermal transfer sheet A
is intermittently pulled out from the attached reel 6 as the take-up reel 9 rotates, and is printed by the printing device 7. The pitch of the intermittent feeding of the thermal transfer sheet A is determined by the transfer portion 5 laminated on the surface of the release sheet 1.
In particular, the distance between the protective film 2 and the transfer adhesive layer 4
The transparent parts match the interval between the overlapping transparent parts. In addition, as will be described later, the reverse characters 12 printed by this printing device 7 are formed when the transfer adhesive layer 4 is heated and softened and is pasted onto the material B. It is constructed with thin lines to prevent it from falling apart.

Next, the thermal transfer sheet A is sent to the pasting device 8 under tension by guide rollers 16a, 16b, and 16c. Then, as shown in FIG. 2, the side of the transfer adhesive layer 4 on which the printing has been applied is brought into contact with the adhesive material B sent by a belt conveyor or the like, and the side is covered with the heated press plate 13. When the adhesive B is heated and pressurized, the transfer adhesive layer 4 is fused and the transfer portion 5 is adhered to the material B to be adhered.

Next, when the release sheet 1 is wound up with the take-up reel 9, the release sheet 1 is peeled off from the protective film 2, and as shown in FIGS.
Only the transfer portion 5 will be pasted on.

Thus, when the transfer part 5 attached to the adhered material B is viewed from the protective film 2 side, the characters 12 printed on the transfer adhesive layer 4 are obtained by inverting the predetermined characters when printing. Since the characters are printed in reverse, they become normal characters and perform their original function as shown in Figure 5, and the transparent parts of the protective film 2 and the transfer adhesive layer 4 overlap. Since the inverted characters 12 are printed on the transparent part, in this example, the transparent part surrounded by the printed film 3, as shown in FIG. 4, the inverted characters 12 are visible from the protective film 2 side. can. Moreover, the characters 1 printed by the protective film 2
2 is coated after transfer, it is possible to prevent the characters from disappearing or fading.

Note that the printing device 7 is not limited to the above example, and includes, for example, a printing roller 14 on which a plate-shaped printed body 11' is fitted on the outer periphery, as shown in FIG. A printing device 7' includes a roller 15, and a printing roller 14 of the device 7'.
The thermal transfer sheet A may be inserted between the press roller 15 and the press roller 15. At this time, the thermal transfer sheet A is inserted so that the transfer adhesive layer 4 of the thermal transfer sheet A is in contact with the plate-shaped printed body 11' of the printing roller 14. Further, instead of the pressure roller 15, the pressure plate 10 may be used as in the above embodiment.

The printed bodies 11, 11' are made of copper, zinc, aluminum, magnesium, steel, paper, synthetic resin, etc., and are inverted characters 1, which are the reverse of predetermined characters.
2 may be printed on the surface of the transfer adhesive layer 4, it is sufficient to use a printing plate on which characters are formed by corrosion, engraving, etc.

Further, the pasting device 8 is not limited to the above example. For example, instead of the heating press plate 13, as shown in FIGS. It may also be an adhesion device 8', 8'' that applies heat and pressure to B and adheres it to the material to be adhered B.

The thermal transfer sheet A may not be fed intermittently and sequentially as described above, but may be fed continuously to the printing device 7' and the pasting device 8'' as shown in FIG.

The present invention is configured as described above, and the thermal transfer sheet is sequentially pulled out intermittently or continuously, sent to a printing device, and after printing is sent to a pasting device, where the transferred portion of the thermal transfer sheet is covered. After being applied to the adhesive material, the release sheet is wound up on a take-up reel, making it extremely easy and clear to print and to be able to continuously transfer characters to the adhered material in a short period of time in a series of processes. This makes it possible to shorten manufacturing time and reduce manufacturing costs. Further, the printed body 11 of the printing device 7 includes a protective film 2 and a transfer adhesive layer 4.
Since the device is provided in such a way that a reverse character formed by reversing a predetermined character is printed on the visible part where the transparent parts of Printing can be performed as appropriate, and after transfer, normal characters can be seen through the protective film 2 and the transfer adhesive layer 4 from the protective film 2 side. As described above, the present invention has extremely excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram of a thermal transfer sheet pasting device equipped with a printing device which is an embodiment of the present invention, FIG. 2 is a schematic explanatory diagram showing the operating state of the device, and FIG.
The figure is a cross-sectional view showing an example of a thermal transfer sheet pasted by this device, FIG. 4 is a back view showing the printed thermal transfer sheet, and FIG. 5 is a surface of the transferred part transferred to the adherend material. In the figure, FIG. 6 is a sectional view thereof,
FIG. 7 and FIG. 8 are schematic explanatory diagrams showing another example of the present invention. A... Thermal transfer sheet, B... Adhesive material, 1...
Release sheet, 2...protective film, 3...printed film, 4...
...Transfer adhesive layer, 5...Transfer section, 6...Mounting reel, 7, 7'...Printing device, 8, 8', 8''...
Pasting device, 9... Take-up reel, 10... Pressure plate, 11, 11'... Printed body, 12... Characters,
13...Heat press plate, 14...Print roller, 15...Press roller, 16a, 16b, 16
c...Guide roller, 17, 17'...Heating roller.

Claims (1)

[Scope of Claims] 1. A thermal transfer sheet in which a protective film having a transparent portion is formed on one surface of a release sheet, and a transfer adhesive layer having a transparent portion is formed on the protective film. In a sticking device that sticks onto an adhesive, a mounting reel on which the thermal transfer sheet is wound, and a visible part on the surface of the thermal transfer adhesive layer where the protective film and the transparent part of the transfer adhesive layer overlap. ,
A printing device is provided to print a reverse character formed by reversing a predetermined character, and the printing device performs appropriate printing with a printed body, and the transfer adhesive layer side of the thermal transfer sheet sent from the printing device is pasted. A pasting device that affixes the transferred part of the thermal transfer sheet by bringing it into contact with the material and applying heat and pressure to the material to be pasted using a heated heated press plate or heating roll; 1. A thermal transfer sheet pasting device with a printing device, comprising a take-up reel that is sequentially pulled out and winds up only the release sheet after the transfer section is pasted on the material to be pasted.